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34dc7c2f BB |
1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
4 | * The contents of this file are subject to the terms of the | |
5 | * Common Development and Distribution License (the "License"). | |
6 | * You may not use this file except in compliance with the License. | |
7 | * | |
8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 | * or http://www.opensolaris.org/os/licensing. | |
10 | * See the License for the specific language governing permissions | |
11 | * and limitations under the License. | |
12 | * | |
13 | * When distributing Covered Code, include this CDDL HEADER in each | |
14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 | * If applicable, add the following below this CDDL HEADER, with the | |
16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
9ae529ec | 21 | |
34dc7c2f | 22 | /* |
428870ff | 23 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
b129c659 | 24 | * Portions Copyright 2011 Martin Matuska |
671c9354 | 25 | * Copyright 2015, OmniTI Computer Consulting, Inc. All rights reserved. |
0cee2406 | 26 | * Portions Copyright 2012 Pawel Jakub Dawidek <pawel@dawidek.net> |
005e27e3 | 27 | * Copyright (c) 2014, 2016 Joyent, Inc. All rights reserved. |
1b87e0f5 | 28 | * Copyright 2016 Nexenta Systems, Inc. All rights reserved. |
788eb90c | 29 | * Copyright (c) 2014, Joyent, Inc. All rights reserved. |
b83a0e2d | 30 | * Copyright (c) 2011, 2018 by Delphix. All rights reserved. |
9759c60f | 31 | * Copyright (c) 2013 by Saso Kiselkov. All rights reserved. |
95fd54a1 | 32 | * Copyright (c) 2013 Steven Hartland. All rights reserved. |
e550644f BB |
33 | * Copyright (c) 2014 Integros [integros.com] |
34 | * Copyright 2016 Toomas Soome <tsoome@me.com> | |
a0bd735a | 35 | * Copyright (c) 2016 Actifio, Inc. All rights reserved. |
a3eeab2d | 36 | * Copyright (c) 2017, loli10K <ezomori.nozomu@gmail.com>. All rights reserved. |
b5256303 | 37 | * Copyright (c) 2017 Datto Inc. All rights reserved. |
d12f91fd | 38 | * Copyright 2017 RackTop Systems. |
d3f2cd7e | 39 | * Copyright (c) 2017 Open-E, Inc. All Rights Reserved. |
6f1ffb06 MA |
40 | */ |
41 | ||
42 | /* | |
43 | * ZFS ioctls. | |
44 | * | |
45 | * This file handles the ioctls to /dev/zfs, used for configuring ZFS storage | |
46 | * pools and filesystems, e.g. with /sbin/zfs and /sbin/zpool. | |
47 | * | |
48 | * There are two ways that we handle ioctls: the legacy way where almost | |
49 | * all of the logic is in the ioctl callback, and the new way where most | |
50 | * of the marshalling is handled in the common entry point, zfsdev_ioctl(). | |
51 | * | |
52 | * Non-legacy ioctls should be registered by calling | |
53 | * zfs_ioctl_register() from zfs_ioctl_init(). The ioctl is invoked | |
54 | * from userland by lzc_ioctl(). | |
55 | * | |
56 | * The registration arguments are as follows: | |
57 | * | |
58 | * const char *name | |
59 | * The name of the ioctl. This is used for history logging. If the | |
60 | * ioctl returns successfully (the callback returns 0), and allow_log | |
61 | * is true, then a history log entry will be recorded with the input & | |
62 | * output nvlists. The log entry can be printed with "zpool history -i". | |
63 | * | |
64 | * zfs_ioc_t ioc | |
65 | * The ioctl request number, which userland will pass to ioctl(2). | |
b83a0e2d DB |
66 | * We want newer versions of libzfs and libzfs_core to run against |
67 | * existing zfs kernel modules (i.e. a deferred reboot after an update). | |
68 | * Therefore the ioctl numbers cannot change from release to release. | |
6f1ffb06 MA |
69 | * |
70 | * zfs_secpolicy_func_t *secpolicy | |
71 | * This function will be called before the zfs_ioc_func_t, to | |
72 | * determine if this operation is permitted. It should return EPERM | |
73 | * on failure, and 0 on success. Checks include determining if the | |
74 | * dataset is visible in this zone, and if the user has either all | |
75 | * zfs privileges in the zone (SYS_MOUNT), or has been granted permission | |
76 | * to do this operation on this dataset with "zfs allow". | |
77 | * | |
78 | * zfs_ioc_namecheck_t namecheck | |
79 | * This specifies what to expect in the zfs_cmd_t:zc_name -- a pool | |
80 | * name, a dataset name, or nothing. If the name is not well-formed, | |
81 | * the ioctl will fail and the callback will not be called. | |
82 | * Therefore, the callback can assume that the name is well-formed | |
83 | * (e.g. is null-terminated, doesn't have more than one '@' character, | |
84 | * doesn't have invalid characters). | |
85 | * | |
86 | * zfs_ioc_poolcheck_t pool_check | |
87 | * This specifies requirements on the pool state. If the pool does | |
88 | * not meet them (is suspended or is readonly), the ioctl will fail | |
89 | * and the callback will not be called. If any checks are specified | |
90 | * (i.e. it is not POOL_CHECK_NONE), namecheck must not be NO_NAME. | |
91 | * Multiple checks can be or-ed together (e.g. POOL_CHECK_SUSPENDED | | |
92 | * POOL_CHECK_READONLY). | |
93 | * | |
b83a0e2d DB |
94 | * zfs_ioc_key_t *nvl_keys |
95 | * The list of expected/allowable innvl input keys. This list is used | |
96 | * to validate the nvlist input to the ioctl. | |
97 | * | |
6f1ffb06 MA |
98 | * boolean_t smush_outnvlist |
99 | * If smush_outnvlist is true, then the output is presumed to be a | |
100 | * list of errors, and it will be "smushed" down to fit into the | |
101 | * caller's buffer, by removing some entries and replacing them with a | |
102 | * single "N_MORE_ERRORS" entry indicating how many were removed. See | |
103 | * nvlist_smush() for details. If smush_outnvlist is false, and the | |
104 | * outnvlist does not fit into the userland-provided buffer, then the | |
105 | * ioctl will fail with ENOMEM. | |
106 | * | |
107 | * zfs_ioc_func_t *func | |
108 | * The callback function that will perform the operation. | |
109 | * | |
110 | * The callback should return 0 on success, or an error number on | |
111 | * failure. If the function fails, the userland ioctl will return -1, | |
112 | * and errno will be set to the callback's return value. The callback | |
113 | * will be called with the following arguments: | |
114 | * | |
115 | * const char *name | |
116 | * The name of the pool or dataset to operate on, from | |
117 | * zfs_cmd_t:zc_name. The 'namecheck' argument specifies the | |
118 | * expected type (pool, dataset, or none). | |
119 | * | |
120 | * nvlist_t *innvl | |
121 | * The input nvlist, deserialized from zfs_cmd_t:zc_nvlist_src. Or | |
122 | * NULL if no input nvlist was provided. Changes to this nvlist are | |
123 | * ignored. If the input nvlist could not be deserialized, the | |
124 | * ioctl will fail and the callback will not be called. | |
125 | * | |
126 | * nvlist_t *outnvl | |
127 | * The output nvlist, initially empty. The callback can fill it in, | |
128 | * and it will be returned to userland by serializing it into | |
129 | * zfs_cmd_t:zc_nvlist_dst. If it is non-empty, and serialization | |
130 | * fails (e.g. because the caller didn't supply a large enough | |
131 | * buffer), then the overall ioctl will fail. See the | |
132 | * 'smush_nvlist' argument above for additional behaviors. | |
133 | * | |
134 | * There are two typical uses of the output nvlist: | |
135 | * - To return state, e.g. property values. In this case, | |
136 | * smush_outnvlist should be false. If the buffer was not large | |
137 | * enough, the caller will reallocate a larger buffer and try | |
138 | * the ioctl again. | |
139 | * | |
140 | * - To return multiple errors from an ioctl which makes on-disk | |
141 | * changes. In this case, smush_outnvlist should be true. | |
142 | * Ioctls which make on-disk modifications should generally not | |
143 | * use the outnvl if they succeed, because the caller can not | |
144 | * distinguish between the operation failing, and | |
145 | * deserialization failing. | |
b83a0e2d DB |
146 | * |
147 | * IOCTL Interface Errors | |
148 | * | |
149 | * The following ioctl input errors can be returned: | |
150 | * ZFS_ERR_IOC_CMD_UNAVAIL the ioctl number is not supported by kernel | |
151 | * ZFS_ERR_IOC_ARG_UNAVAIL an input argument is not supported by kernel | |
152 | * ZFS_ERR_IOC_ARG_REQUIRED a required input argument is missing | |
153 | * ZFS_ERR_IOC_ARG_BADTYPE an input argument has an invalid type | |
3541dc6d | 154 | */ |
34dc7c2f | 155 | |
34dc7c2f BB |
156 | #include <sys/types.h> |
157 | #include <sys/param.h> | |
158 | #include <sys/errno.h> | |
159 | #include <sys/uio.h> | |
34dc7c2f BB |
160 | #include <sys/file.h> |
161 | #include <sys/kmem.h> | |
34dc7c2f BB |
162 | #include <sys/cmn_err.h> |
163 | #include <sys/stat.h> | |
164 | #include <sys/zfs_ioctl.h> | |
428870ff | 165 | #include <sys/zfs_vfsops.h> |
34dc7c2f BB |
166 | #include <sys/zfs_znode.h> |
167 | #include <sys/zap.h> | |
168 | #include <sys/spa.h> | |
169 | #include <sys/spa_impl.h> | |
170 | #include <sys/vdev.h> | |
4a283c7f | 171 | #include <sys/vdev_impl.h> |
34dc7c2f BB |
172 | #include <sys/dmu.h> |
173 | #include <sys/dsl_dir.h> | |
174 | #include <sys/dsl_dataset.h> | |
175 | #include <sys/dsl_prop.h> | |
176 | #include <sys/dsl_deleg.h> | |
177 | #include <sys/dmu_objset.h> | |
37abac6d | 178 | #include <sys/dmu_impl.h> |
13fe0198 | 179 | #include <sys/dmu_tx.h> |
34dc7c2f | 180 | #include <sys/sunddi.h> |
34dc7c2f BB |
181 | #include <sys/policy.h> |
182 | #include <sys/zone.h> | |
183 | #include <sys/nvpair.h> | |
184 | #include <sys/pathname.h> | |
34dc7c2f BB |
185 | #include <sys/sdt.h> |
186 | #include <sys/fs/zfs.h> | |
ebe7e575 | 187 | #include <sys/zfs_ctldir.h> |
34dc7c2f | 188 | #include <sys/zfs_dir.h> |
572e2857 | 189 | #include <sys/zfs_onexit.h> |
34dc7c2f | 190 | #include <sys/zvol.h> |
428870ff | 191 | #include <sys/dsl_scan.h> |
325f0235 | 192 | #include <sys/fm/util.h> |
b5256303 | 193 | #include <sys/dsl_crypt.h> |
325f0235 | 194 | |
13fe0198 MA |
195 | #include <sys/dmu_send.h> |
196 | #include <sys/dsl_destroy.h> | |
da536844 | 197 | #include <sys/dsl_bookmark.h> |
13fe0198 | 198 | #include <sys/dsl_userhold.h> |
9759c60f | 199 | #include <sys/zfeature.h> |
d99a0153 | 200 | #include <sys/zcp.h> |
3c67d83a | 201 | #include <sys/zio_checksum.h> |
a1d477c2 | 202 | #include <sys/vdev_removal.h> |
e8bcb693 | 203 | #include <sys/zfs_sysfs.h> |
9759c60f | 204 | |
325f0235 | 205 | #include <linux/miscdevice.h> |
f74b821a | 206 | #include <linux/slab.h> |
34dc7c2f BB |
207 | |
208 | #include "zfs_namecheck.h" | |
209 | #include "zfs_prop.h" | |
210 | #include "zfs_deleg.h" | |
428870ff | 211 | #include "zfs_comutil.h" |
34dc7c2f | 212 | |
d99a0153 CW |
213 | #include <sys/lua/lua.h> |
214 | #include <sys/lua/lauxlib.h> | |
215 | ||
f74b821a BB |
216 | /* |
217 | * Limit maximum nvlist size. We don't want users passing in insane values | |
218 | * for zc->zc_nvlist_src_size, since we will need to allocate that much memory. | |
219 | */ | |
220 | #define MAX_NVLIST_SRC_SIZE KMALLOC_MAX_SIZE | |
221 | ||
325f0235 | 222 | kmutex_t zfsdev_state_lock; |
3937ab20 | 223 | zfsdev_state_t *zfsdev_state_list; |
34dc7c2f BB |
224 | |
225 | extern void zfs_init(void); | |
226 | extern void zfs_fini(void); | |
227 | ||
6f1ffb06 MA |
228 | uint_t zfs_fsyncer_key; |
229 | extern uint_t rrw_tsd_key; | |
230 | static uint_t zfs_allow_log_key; | |
231 | ||
232 | typedef int zfs_ioc_legacy_func_t(zfs_cmd_t *); | |
233 | typedef int zfs_ioc_func_t(const char *, nvlist_t *, nvlist_t *); | |
234 | typedef int zfs_secpolicy_func_t(zfs_cmd_t *, nvlist_t *, cred_t *); | |
34dc7c2f | 235 | |
b83a0e2d DB |
236 | /* |
237 | * IOC Keys are used to document and validate user->kernel interface inputs. | |
238 | * See zfs_keys_recv_new for an example declaration. Any key name that is not | |
239 | * listed will be rejected as input. | |
240 | * | |
241 | * The keyname 'optional' is always allowed, and must be an nvlist if present. | |
242 | * Arguments which older kernels can safely ignore can be placed under the | |
243 | * "optional" key. | |
244 | * | |
245 | * When adding new keys to an existing ioc for new functionality, consider: | |
246 | * - adding an entry into zfs_sysfs.c zfs_features[] list | |
247 | * - updating the libzfs_input_check.c test utility | |
248 | * | |
249 | * Note: in the ZK_WILDCARDLIST case, the name serves as documentation | |
250 | * for the expected name (bookmark, snapshot, property, etc) but there | |
251 | * is no validation in the preflight zfs_check_input_nvpairs() check. | |
252 | */ | |
253 | typedef enum { | |
254 | ZK_OPTIONAL = 1 << 0, /* pair is optional */ | |
255 | ZK_WILDCARDLIST = 1 << 1, /* one or more unspecified key names */ | |
256 | } ioc_key_flag_t; | |
257 | ||
258 | /* DATA_TYPE_ANY is used when zkey_type can vary. */ | |
259 | #define DATA_TYPE_ANY DATA_TYPE_UNKNOWN | |
260 | ||
261 | typedef struct zfs_ioc_key { | |
262 | const char *zkey_name; | |
263 | data_type_t zkey_type; | |
264 | ioc_key_flag_t zkey_flags; | |
265 | } zfs_ioc_key_t; | |
266 | ||
9babb374 BB |
267 | typedef enum { |
268 | NO_NAME, | |
269 | POOL_NAME, | |
270 | DATASET_NAME | |
271 | } zfs_ioc_namecheck_t; | |
272 | ||
572e2857 BB |
273 | typedef enum { |
274 | POOL_CHECK_NONE = 1 << 0, | |
275 | POOL_CHECK_SUSPENDED = 1 << 1, | |
6f1ffb06 | 276 | POOL_CHECK_READONLY = 1 << 2, |
572e2857 BB |
277 | } zfs_ioc_poolcheck_t; |
278 | ||
34dc7c2f | 279 | typedef struct zfs_ioc_vec { |
6f1ffb06 | 280 | zfs_ioc_legacy_func_t *zvec_legacy_func; |
34dc7c2f BB |
281 | zfs_ioc_func_t *zvec_func; |
282 | zfs_secpolicy_func_t *zvec_secpolicy; | |
9babb374 | 283 | zfs_ioc_namecheck_t zvec_namecheck; |
6f1ffb06 | 284 | boolean_t zvec_allow_log; |
572e2857 | 285 | zfs_ioc_poolcheck_t zvec_pool_check; |
6f1ffb06 MA |
286 | boolean_t zvec_smush_outnvlist; |
287 | const char *zvec_name; | |
b83a0e2d DB |
288 | const zfs_ioc_key_t *zvec_nvl_keys; |
289 | size_t zvec_nvl_key_count; | |
34dc7c2f BB |
290 | } zfs_ioc_vec_t; |
291 | ||
9babb374 BB |
292 | /* This array is indexed by zfs_userquota_prop_t */ |
293 | static const char *userquota_perms[] = { | |
294 | ZFS_DELEG_PERM_USERUSED, | |
295 | ZFS_DELEG_PERM_USERQUOTA, | |
296 | ZFS_DELEG_PERM_GROUPUSED, | |
297 | ZFS_DELEG_PERM_GROUPQUOTA, | |
1de321e6 JX |
298 | ZFS_DELEG_PERM_USEROBJUSED, |
299 | ZFS_DELEG_PERM_USEROBJQUOTA, | |
300 | ZFS_DELEG_PERM_GROUPOBJUSED, | |
301 | ZFS_DELEG_PERM_GROUPOBJQUOTA, | |
9c5167d1 NF |
302 | ZFS_DELEG_PERM_PROJECTUSED, |
303 | ZFS_DELEG_PERM_PROJECTQUOTA, | |
304 | ZFS_DELEG_PERM_PROJECTOBJUSED, | |
305 | ZFS_DELEG_PERM_PROJECTOBJQUOTA, | |
9babb374 BB |
306 | }; |
307 | ||
308 | static int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc); | |
9c5167d1 | 309 | static int zfs_ioc_id_quota_upgrade(zfs_cmd_t *zc); |
428870ff BB |
310 | static int zfs_check_settable(const char *name, nvpair_t *property, |
311 | cred_t *cr); | |
312 | static int zfs_check_clearable(char *dataset, nvlist_t *props, | |
313 | nvlist_t **errors); | |
b128c09f BB |
314 | static int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *, |
315 | boolean_t *); | |
6f1ffb06 MA |
316 | int zfs_set_prop_nvlist(const char *, zprop_source_t, nvlist_t *, nvlist_t *); |
317 | static int get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp); | |
b128c09f | 318 | |
34dc7c2f BB |
319 | static void |
320 | history_str_free(char *buf) | |
321 | { | |
322 | kmem_free(buf, HIS_MAX_RECORD_LEN); | |
323 | } | |
324 | ||
325 | static char * | |
326 | history_str_get(zfs_cmd_t *zc) | |
327 | { | |
328 | char *buf; | |
329 | ||
b8864a23 | 330 | if (zc->zc_history == 0) |
34dc7c2f BB |
331 | return (NULL); |
332 | ||
efcd79a8 | 333 | buf = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP); |
34dc7c2f BB |
334 | if (copyinstr((void *)(uintptr_t)zc->zc_history, |
335 | buf, HIS_MAX_RECORD_LEN, NULL) != 0) { | |
336 | history_str_free(buf); | |
337 | return (NULL); | |
338 | } | |
339 | ||
340 | buf[HIS_MAX_RECORD_LEN -1] = '\0'; | |
341 | ||
342 | return (buf); | |
343 | } | |
344 | ||
345 | /* | |
b128c09f BB |
346 | * Check to see if the named dataset is currently defined as bootable |
347 | */ | |
348 | static boolean_t | |
349 | zfs_is_bootfs(const char *name) | |
350 | { | |
428870ff | 351 | objset_t *os; |
b128c09f | 352 | |
428870ff BB |
353 | if (dmu_objset_hold(name, FTAG, &os) == 0) { |
354 | boolean_t ret; | |
355 | ret = (dmu_objset_id(os) == spa_bootfs(dmu_objset_spa(os))); | |
356 | dmu_objset_rele(os, FTAG); | |
357 | return (ret); | |
b128c09f | 358 | } |
428870ff | 359 | return (B_FALSE); |
b128c09f BB |
360 | } |
361 | ||
362 | /* | |
d3cc8b15 | 363 | * Return non-zero if the spa version is less than requested version. |
34dc7c2f BB |
364 | */ |
365 | static int | |
b128c09f | 366 | zfs_earlier_version(const char *name, int version) |
34dc7c2f | 367 | { |
34dc7c2f BB |
368 | spa_t *spa; |
369 | ||
370 | if (spa_open(name, &spa, FTAG) == 0) { | |
371 | if (spa_version(spa) < version) { | |
372 | spa_close(spa, FTAG); | |
373 | return (1); | |
374 | } | |
375 | spa_close(spa, FTAG); | |
376 | } | |
377 | return (0); | |
378 | } | |
379 | ||
380 | /* | |
b128c09f | 381 | * Return TRUE if the ZPL version is less than requested version. |
34dc7c2f | 382 | */ |
b128c09f BB |
383 | static boolean_t |
384 | zpl_earlier_version(const char *name, int version) | |
34dc7c2f BB |
385 | { |
386 | objset_t *os; | |
b128c09f | 387 | boolean_t rc = B_TRUE; |
34dc7c2f | 388 | |
428870ff | 389 | if (dmu_objset_hold(name, FTAG, &os) == 0) { |
b128c09f | 390 | uint64_t zplversion; |
34dc7c2f | 391 | |
428870ff BB |
392 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
393 | dmu_objset_rele(os, FTAG); | |
394 | return (B_TRUE); | |
395 | } | |
396 | /* XXX reading from non-owned objset */ | |
b128c09f BB |
397 | if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0) |
398 | rc = zplversion < version; | |
428870ff | 399 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
400 | } |
401 | return (rc); | |
402 | } | |
403 | ||
404 | static void | |
405 | zfs_log_history(zfs_cmd_t *zc) | |
406 | { | |
407 | spa_t *spa; | |
408 | char *buf; | |
409 | ||
410 | if ((buf = history_str_get(zc)) == NULL) | |
411 | return; | |
412 | ||
413 | if (spa_open(zc->zc_name, &spa, FTAG) == 0) { | |
414 | if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY) | |
6f1ffb06 | 415 | (void) spa_history_log(spa, buf); |
34dc7c2f BB |
416 | spa_close(spa, FTAG); |
417 | } | |
418 | history_str_free(buf); | |
419 | } | |
420 | ||
421 | /* | |
422 | * Policy for top-level read operations (list pools). Requires no privileges, | |
423 | * and can be used in the local zone, as there is no associated dataset. | |
424 | */ | |
425 | /* ARGSUSED */ | |
426 | static int | |
6f1ffb06 | 427 | zfs_secpolicy_none(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
428 | { |
429 | return (0); | |
430 | } | |
431 | ||
432 | /* | |
433 | * Policy for dataset read operations (list children, get statistics). Requires | |
434 | * no privileges, but must be visible in the local zone. | |
435 | */ | |
436 | /* ARGSUSED */ | |
437 | static int | |
6f1ffb06 | 438 | zfs_secpolicy_read(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
439 | { |
440 | if (INGLOBALZONE(curproc) || | |
441 | zone_dataset_visible(zc->zc_name, NULL)) | |
442 | return (0); | |
443 | ||
2e528b49 | 444 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
445 | } |
446 | ||
447 | static int | |
572e2857 | 448 | zfs_dozonecheck_impl(const char *dataset, uint64_t zoned, cred_t *cr) |
34dc7c2f | 449 | { |
34dc7c2f BB |
450 | int writable = 1; |
451 | ||
452 | /* | |
453 | * The dataset must be visible by this zone -- check this first | |
454 | * so they don't see EPERM on something they shouldn't know about. | |
455 | */ | |
456 | if (!INGLOBALZONE(curproc) && | |
457 | !zone_dataset_visible(dataset, &writable)) | |
2e528b49 | 458 | return (SET_ERROR(ENOENT)); |
34dc7c2f | 459 | |
34dc7c2f BB |
460 | if (INGLOBALZONE(curproc)) { |
461 | /* | |
462 | * If the fs is zoned, only root can access it from the | |
463 | * global zone. | |
464 | */ | |
465 | if (secpolicy_zfs(cr) && zoned) | |
2e528b49 | 466 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
467 | } else { |
468 | /* | |
469 | * If we are in a local zone, the 'zoned' property must be set. | |
470 | */ | |
471 | if (!zoned) | |
2e528b49 | 472 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
473 | |
474 | /* must be writable by this zone */ | |
475 | if (!writable) | |
2e528b49 | 476 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
477 | } |
478 | return (0); | |
479 | } | |
480 | ||
572e2857 BB |
481 | static int |
482 | zfs_dozonecheck(const char *dataset, cred_t *cr) | |
483 | { | |
484 | uint64_t zoned; | |
485 | ||
486 | if (dsl_prop_get_integer(dataset, "zoned", &zoned, NULL)) | |
2e528b49 | 487 | return (SET_ERROR(ENOENT)); |
572e2857 BB |
488 | |
489 | return (zfs_dozonecheck_impl(dataset, zoned, cr)); | |
490 | } | |
491 | ||
492 | static int | |
493 | zfs_dozonecheck_ds(const char *dataset, dsl_dataset_t *ds, cred_t *cr) | |
494 | { | |
495 | uint64_t zoned; | |
496 | ||
13fe0198 | 497 | if (dsl_prop_get_int_ds(ds, "zoned", &zoned)) |
2e528b49 | 498 | return (SET_ERROR(ENOENT)); |
572e2857 BB |
499 | |
500 | return (zfs_dozonecheck_impl(dataset, zoned, cr)); | |
501 | } | |
502 | ||
6f1ffb06 | 503 | static int |
13fe0198 MA |
504 | zfs_secpolicy_write_perms_ds(const char *name, dsl_dataset_t *ds, |
505 | const char *perm, cred_t *cr) | |
34dc7c2f BB |
506 | { |
507 | int error; | |
508 | ||
330d06f9 | 509 | error = zfs_dozonecheck_ds(name, ds, cr); |
34dc7c2f BB |
510 | if (error == 0) { |
511 | error = secpolicy_zfs(cr); | |
13fe0198 | 512 | if (error != 0) |
6f1ffb06 | 513 | error = dsl_deleg_access_impl(ds, perm, cr); |
34dc7c2f BB |
514 | } |
515 | return (error); | |
516 | } | |
517 | ||
6f1ffb06 | 518 | static int |
13fe0198 | 519 | zfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr) |
572e2857 BB |
520 | { |
521 | int error; | |
13fe0198 MA |
522 | dsl_dataset_t *ds; |
523 | dsl_pool_t *dp; | |
572e2857 | 524 | |
e88551d5 GM |
525 | /* |
526 | * First do a quick check for root in the global zone, which | |
527 | * is allowed to do all write_perms. This ensures that zfs_ioc_* | |
528 | * will get to handle nonexistent datasets. | |
529 | */ | |
530 | if (INGLOBALZONE(curproc) && secpolicy_zfs(cr) == 0) | |
531 | return (0); | |
532 | ||
13fe0198 MA |
533 | error = dsl_pool_hold(name, FTAG, &dp); |
534 | if (error != 0) | |
535 | return (error); | |
536 | ||
537 | error = dsl_dataset_hold(dp, name, FTAG, &ds); | |
538 | if (error != 0) { | |
539 | dsl_pool_rele(dp, FTAG); | |
540 | return (error); | |
572e2857 | 541 | } |
13fe0198 MA |
542 | |
543 | error = zfs_secpolicy_write_perms_ds(name, ds, perm, cr); | |
544 | ||
545 | dsl_dataset_rele(ds, FTAG); | |
546 | dsl_pool_rele(dp, FTAG); | |
572e2857 BB |
547 | return (error); |
548 | } | |
549 | ||
428870ff BB |
550 | /* |
551 | * Policy for setting the security label property. | |
552 | * | |
553 | * Returns 0 for success, non-zero for access and other errors. | |
554 | */ | |
34dc7c2f | 555 | static int |
428870ff | 556 | zfs_set_slabel_policy(const char *name, char *strval, cred_t *cr) |
34dc7c2f | 557 | { |
d2c15e84 | 558 | #ifdef HAVE_MLSLABEL |
428870ff BB |
559 | char ds_hexsl[MAXNAMELEN]; |
560 | bslabel_t ds_sl, new_sl; | |
561 | boolean_t new_default = FALSE; | |
562 | uint64_t zoned; | |
563 | int needed_priv = -1; | |
564 | int error; | |
565 | ||
566 | /* First get the existing dataset label. */ | |
567 | error = dsl_prop_get(name, zfs_prop_to_name(ZFS_PROP_MLSLABEL), | |
568 | 1, sizeof (ds_hexsl), &ds_hexsl, NULL); | |
13fe0198 | 569 | if (error != 0) |
2e528b49 | 570 | return (SET_ERROR(EPERM)); |
428870ff BB |
571 | |
572 | if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) | |
573 | new_default = TRUE; | |
574 | ||
575 | /* The label must be translatable */ | |
576 | if (!new_default && (hexstr_to_label(strval, &new_sl) != 0)) | |
2e528b49 | 577 | return (SET_ERROR(EINVAL)); |
428870ff BB |
578 | |
579 | /* | |
580 | * In a non-global zone, disallow attempts to set a label that | |
581 | * doesn't match that of the zone; otherwise no other checks | |
582 | * are needed. | |
583 | */ | |
584 | if (!INGLOBALZONE(curproc)) { | |
585 | if (new_default || !blequal(&new_sl, CR_SL(CRED()))) | |
2e528b49 | 586 | return (SET_ERROR(EPERM)); |
428870ff BB |
587 | return (0); |
588 | } | |
589 | ||
590 | /* | |
591 | * For global-zone datasets (i.e., those whose zoned property is | |
592 | * "off", verify that the specified new label is valid for the | |
593 | * global zone. | |
594 | */ | |
595 | if (dsl_prop_get_integer(name, | |
596 | zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL)) | |
2e528b49 | 597 | return (SET_ERROR(EPERM)); |
428870ff BB |
598 | if (!zoned) { |
599 | if (zfs_check_global_label(name, strval) != 0) | |
2e528b49 | 600 | return (SET_ERROR(EPERM)); |
428870ff BB |
601 | } |
602 | ||
603 | /* | |
604 | * If the existing dataset label is nondefault, check if the | |
605 | * dataset is mounted (label cannot be changed while mounted). | |
0037b49e | 606 | * Get the zfsvfs_t; if there isn't one, then the dataset isn't |
428870ff BB |
607 | * mounted (or isn't a dataset, doesn't exist, ...). |
608 | */ | |
609 | if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) != 0) { | |
610 | objset_t *os; | |
611 | static char *setsl_tag = "setsl_tag"; | |
612 | ||
613 | /* | |
614 | * Try to own the dataset; abort if there is any error, | |
615 | * (e.g., already mounted, in use, or other error). | |
616 | */ | |
b5256303 | 617 | error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE, B_TRUE, |
428870ff | 618 | setsl_tag, &os); |
13fe0198 | 619 | if (error != 0) |
2e528b49 | 620 | return (SET_ERROR(EPERM)); |
428870ff | 621 | |
b5256303 | 622 | dmu_objset_disown(os, B_TRUE, setsl_tag); |
428870ff BB |
623 | |
624 | if (new_default) { | |
625 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
626 | goto out_check; | |
627 | } | |
628 | ||
629 | if (hexstr_to_label(strval, &new_sl) != 0) | |
2e528b49 | 630 | return (SET_ERROR(EPERM)); |
428870ff BB |
631 | |
632 | if (blstrictdom(&ds_sl, &new_sl)) | |
633 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
634 | else if (blstrictdom(&new_sl, &ds_sl)) | |
635 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
636 | } else { | |
637 | /* dataset currently has a default label */ | |
638 | if (!new_default) | |
639 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
640 | } | |
641 | ||
642 | out_check: | |
643 | if (needed_priv != -1) | |
644 | return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL)); | |
645 | return (0); | |
d2c15e84 | 646 | #else |
ecb2b7dc | 647 | return (SET_ERROR(ENOTSUP)); |
d2c15e84 | 648 | #endif /* HAVE_MLSLABEL */ |
428870ff BB |
649 | } |
650 | ||
651 | static int | |
652 | zfs_secpolicy_setprop(const char *dsname, zfs_prop_t prop, nvpair_t *propval, | |
653 | cred_t *cr) | |
654 | { | |
655 | char *strval; | |
656 | ||
34dc7c2f BB |
657 | /* |
658 | * Check permissions for special properties. | |
659 | */ | |
660 | switch (prop) { | |
e75c13c3 BB |
661 | default: |
662 | break; | |
34dc7c2f BB |
663 | case ZFS_PROP_ZONED: |
664 | /* | |
665 | * Disallow setting of 'zoned' from within a local zone. | |
666 | */ | |
667 | if (!INGLOBALZONE(curproc)) | |
2e528b49 | 668 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
669 | break; |
670 | ||
671 | case ZFS_PROP_QUOTA: | |
788eb90c JJ |
672 | case ZFS_PROP_FILESYSTEM_LIMIT: |
673 | case ZFS_PROP_SNAPSHOT_LIMIT: | |
34dc7c2f BB |
674 | if (!INGLOBALZONE(curproc)) { |
675 | uint64_t zoned; | |
eca7b760 | 676 | char setpoint[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f BB |
677 | /* |
678 | * Unprivileged users are allowed to modify the | |
788eb90c | 679 | * limit on things *under* (ie. contained by) |
34dc7c2f BB |
680 | * the thing they own. |
681 | */ | |
428870ff | 682 | if (dsl_prop_get_integer(dsname, "zoned", &zoned, |
34dc7c2f | 683 | setpoint)) |
2e528b49 | 684 | return (SET_ERROR(EPERM)); |
428870ff | 685 | if (!zoned || strlen(dsname) <= strlen(setpoint)) |
2e528b49 | 686 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
687 | } |
688 | break; | |
428870ff BB |
689 | |
690 | case ZFS_PROP_MLSLABEL: | |
691 | if (!is_system_labeled()) | |
2e528b49 | 692 | return (SET_ERROR(EPERM)); |
428870ff BB |
693 | |
694 | if (nvpair_value_string(propval, &strval) == 0) { | |
695 | int err; | |
696 | ||
697 | err = zfs_set_slabel_policy(dsname, strval, CRED()); | |
698 | if (err != 0) | |
699 | return (err); | |
700 | } | |
701 | break; | |
34dc7c2f BB |
702 | } |
703 | ||
428870ff | 704 | return (zfs_secpolicy_write_perms(dsname, zfs_prop_to_name(prop), cr)); |
34dc7c2f BB |
705 | } |
706 | ||
6f1ffb06 MA |
707 | /* ARGSUSED */ |
708 | static int | |
709 | zfs_secpolicy_set_fsacl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f BB |
710 | { |
711 | int error; | |
712 | ||
713 | error = zfs_dozonecheck(zc->zc_name, cr); | |
13fe0198 | 714 | if (error != 0) |
34dc7c2f BB |
715 | return (error); |
716 | ||
717 | /* | |
718 | * permission to set permissions will be evaluated later in | |
719 | * dsl_deleg_can_allow() | |
720 | */ | |
721 | return (0); | |
722 | } | |
723 | ||
6f1ffb06 MA |
724 | /* ARGSUSED */ |
725 | static int | |
726 | zfs_secpolicy_rollback(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f | 727 | { |
428870ff BB |
728 | return (zfs_secpolicy_write_perms(zc->zc_name, |
729 | ZFS_DELEG_PERM_ROLLBACK, cr)); | |
34dc7c2f BB |
730 | } |
731 | ||
6f1ffb06 MA |
732 | /* ARGSUSED */ |
733 | static int | |
734 | zfs_secpolicy_send(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f | 735 | { |
572e2857 BB |
736 | dsl_pool_t *dp; |
737 | dsl_dataset_t *ds; | |
738 | char *cp; | |
739 | int error; | |
740 | ||
741 | /* | |
742 | * Generate the current snapshot name from the given objsetid, then | |
743 | * use that name for the secpolicy/zone checks. | |
744 | */ | |
745 | cp = strchr(zc->zc_name, '@'); | |
746 | if (cp == NULL) | |
2e528b49 | 747 | return (SET_ERROR(EINVAL)); |
13fe0198 MA |
748 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
749 | if (error != 0) | |
572e2857 BB |
750 | return (error); |
751 | ||
572e2857 | 752 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds); |
13fe0198 MA |
753 | if (error != 0) { |
754 | dsl_pool_rele(dp, FTAG); | |
572e2857 | 755 | return (error); |
13fe0198 | 756 | } |
572e2857 BB |
757 | |
758 | dsl_dataset_name(ds, zc->zc_name); | |
759 | ||
760 | error = zfs_secpolicy_write_perms_ds(zc->zc_name, ds, | |
761 | ZFS_DELEG_PERM_SEND, cr); | |
762 | dsl_dataset_rele(ds, FTAG); | |
13fe0198 | 763 | dsl_pool_rele(dp, FTAG); |
572e2857 BB |
764 | |
765 | return (error); | |
34dc7c2f BB |
766 | } |
767 | ||
6f1ffb06 MA |
768 | /* ARGSUSED */ |
769 | static int | |
770 | zfs_secpolicy_send_new(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
771 | { | |
772 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
773 | ZFS_DELEG_PERM_SEND, cr)); | |
774 | } | |
775 | ||
3c9609b3 | 776 | #ifdef HAVE_SMB_SHARE |
6f1ffb06 | 777 | /* ARGSUSED */ |
9babb374 | 778 | static int |
6f1ffb06 | 779 | zfs_secpolicy_deleg_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 BB |
780 | { |
781 | vnode_t *vp; | |
782 | int error; | |
783 | ||
784 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
785 | NO_FOLLOW, NULL, &vp)) != 0) | |
786 | return (error); | |
787 | ||
788 | /* Now make sure mntpnt and dataset are ZFS */ | |
789 | ||
790 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
791 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
792 | zc->zc_name) != 0)) { | |
793 | VN_RELE(vp); | |
2e528b49 | 794 | return (SET_ERROR(EPERM)); |
9babb374 BB |
795 | } |
796 | ||
797 | VN_RELE(vp); | |
798 | return (dsl_deleg_access(zc->zc_name, | |
799 | ZFS_DELEG_PERM_SHARE, cr)); | |
800 | } | |
3c9609b3 | 801 | #endif /* HAVE_SMB_SHARE */ |
9babb374 | 802 | |
34dc7c2f | 803 | int |
6f1ffb06 | 804 | zfs_secpolicy_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 805 | { |
3c9609b3 | 806 | #ifdef HAVE_SMB_SHARE |
34dc7c2f | 807 | if (!INGLOBALZONE(curproc)) |
2e528b49 | 808 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
809 | |
810 | if (secpolicy_nfs(cr) == 0) { | |
811 | return (0); | |
812 | } else { | |
6f1ffb06 | 813 | return (zfs_secpolicy_deleg_share(zc, innvl, cr)); |
9babb374 | 814 | } |
325f0235 | 815 | #else |
2e528b49 | 816 | return (SET_ERROR(ENOTSUP)); |
3c9609b3 | 817 | #endif /* HAVE_SMB_SHARE */ |
9babb374 | 818 | } |
34dc7c2f | 819 | |
9babb374 | 820 | int |
6f1ffb06 | 821 | zfs_secpolicy_smb_acl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 822 | { |
3c9609b3 | 823 | #ifdef HAVE_SMB_SHARE |
9babb374 | 824 | if (!INGLOBALZONE(curproc)) |
2e528b49 | 825 | return (SET_ERROR(EPERM)); |
34dc7c2f | 826 | |
9babb374 BB |
827 | if (secpolicy_smb(cr) == 0) { |
828 | return (0); | |
829 | } else { | |
6f1ffb06 | 830 | return (zfs_secpolicy_deleg_share(zc, innvl, cr)); |
34dc7c2f | 831 | } |
325f0235 | 832 | #else |
2e528b49 | 833 | return (SET_ERROR(ENOTSUP)); |
3c9609b3 | 834 | #endif /* HAVE_SMB_SHARE */ |
34dc7c2f BB |
835 | } |
836 | ||
837 | static int | |
838 | zfs_get_parent(const char *datasetname, char *parent, int parentsize) | |
839 | { | |
840 | char *cp; | |
841 | ||
842 | /* | |
843 | * Remove the @bla or /bla from the end of the name to get the parent. | |
844 | */ | |
845 | (void) strncpy(parent, datasetname, parentsize); | |
846 | cp = strrchr(parent, '@'); | |
847 | if (cp != NULL) { | |
848 | cp[0] = '\0'; | |
849 | } else { | |
850 | cp = strrchr(parent, '/'); | |
851 | if (cp == NULL) | |
2e528b49 | 852 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
853 | cp[0] = '\0'; |
854 | } | |
855 | ||
856 | return (0); | |
857 | } | |
858 | ||
859 | int | |
860 | zfs_secpolicy_destroy_perms(const char *name, cred_t *cr) | |
861 | { | |
862 | int error; | |
863 | ||
864 | if ((error = zfs_secpolicy_write_perms(name, | |
865 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
866 | return (error); | |
867 | ||
868 | return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr)); | |
869 | } | |
870 | ||
6f1ffb06 | 871 | /* ARGSUSED */ |
34dc7c2f | 872 | static int |
6f1ffb06 | 873 | zfs_secpolicy_destroy(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
874 | { |
875 | return (zfs_secpolicy_destroy_perms(zc->zc_name, cr)); | |
876 | } | |
877 | ||
878 | /* | |
428870ff | 879 | * Destroying snapshots with delegated permissions requires |
6f1ffb06 | 880 | * descendant mount and destroy permissions. |
34dc7c2f | 881 | */ |
6f1ffb06 | 882 | /* ARGSUSED */ |
34dc7c2f | 883 | static int |
6f1ffb06 | 884 | zfs_secpolicy_destroy_snaps(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 885 | { |
6f1ffb06 MA |
886 | nvlist_t *snaps; |
887 | nvpair_t *pair, *nextpair; | |
888 | int error = 0; | |
428870ff | 889 | |
b83a0e2d DB |
890 | snaps = fnvlist_lookup_nvlist(innvl, "snaps"); |
891 | ||
6f1ffb06 MA |
892 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; |
893 | pair = nextpair) { | |
6f1ffb06 | 894 | nextpair = nvlist_next_nvpair(snaps, pair); |
da536844 MA |
895 | error = zfs_secpolicy_destroy_perms(nvpair_name(pair), cr); |
896 | if (error == ENOENT) { | |
6f1ffb06 MA |
897 | /* |
898 | * Ignore any snapshots that don't exist (we consider | |
899 | * them "already destroyed"). Remove the name from the | |
900 | * nvl here in case the snapshot is created between | |
901 | * now and when we try to destroy it (in which case | |
902 | * we don't want to destroy it since we haven't | |
903 | * checked for permission). | |
904 | */ | |
905 | fnvlist_remove_nvpair(snaps, pair); | |
906 | error = 0; | |
6f1ffb06 | 907 | } |
6f1ffb06 MA |
908 | if (error != 0) |
909 | break; | |
910 | } | |
428870ff | 911 | |
428870ff | 912 | return (error); |
34dc7c2f BB |
913 | } |
914 | ||
915 | int | |
916 | zfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr) | |
917 | { | |
eca7b760 | 918 | char parentname[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f BB |
919 | int error; |
920 | ||
921 | if ((error = zfs_secpolicy_write_perms(from, | |
922 | ZFS_DELEG_PERM_RENAME, cr)) != 0) | |
923 | return (error); | |
924 | ||
925 | if ((error = zfs_secpolicy_write_perms(from, | |
926 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
927 | return (error); | |
928 | ||
929 | if ((error = zfs_get_parent(to, parentname, | |
930 | sizeof (parentname))) != 0) | |
931 | return (error); | |
932 | ||
933 | if ((error = zfs_secpolicy_write_perms(parentname, | |
934 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
935 | return (error); | |
936 | ||
937 | if ((error = zfs_secpolicy_write_perms(parentname, | |
938 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
939 | return (error); | |
940 | ||
941 | return (error); | |
942 | } | |
943 | ||
6f1ffb06 | 944 | /* ARGSUSED */ |
34dc7c2f | 945 | static int |
6f1ffb06 | 946 | zfs_secpolicy_rename(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
947 | { |
948 | return (zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr)); | |
949 | } | |
950 | ||
6f1ffb06 | 951 | /* ARGSUSED */ |
34dc7c2f | 952 | static int |
6f1ffb06 | 953 | zfs_secpolicy_promote(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 954 | { |
13fe0198 MA |
955 | dsl_pool_t *dp; |
956 | dsl_dataset_t *clone; | |
34dc7c2f BB |
957 | int error; |
958 | ||
959 | error = zfs_secpolicy_write_perms(zc->zc_name, | |
960 | ZFS_DELEG_PERM_PROMOTE, cr); | |
13fe0198 MA |
961 | if (error != 0) |
962 | return (error); | |
963 | ||
964 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); | |
965 | if (error != 0) | |
34dc7c2f BB |
966 | return (error); |
967 | ||
13fe0198 | 968 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &clone); |
34dc7c2f BB |
969 | |
970 | if (error == 0) { | |
eca7b760 | 971 | char parentname[ZFS_MAX_DATASET_NAME_LEN]; |
13fe0198 | 972 | dsl_dataset_t *origin = NULL; |
34dc7c2f | 973 | dsl_dir_t *dd; |
13fe0198 | 974 | dd = clone->ds_dir; |
34dc7c2f | 975 | |
b128c09f | 976 | error = dsl_dataset_hold_obj(dd->dd_pool, |
d683ddbb | 977 | dsl_dir_phys(dd)->dd_origin_obj, FTAG, &origin); |
13fe0198 MA |
978 | if (error != 0) { |
979 | dsl_dataset_rele(clone, FTAG); | |
980 | dsl_pool_rele(dp, FTAG); | |
34dc7c2f BB |
981 | return (error); |
982 | } | |
983 | ||
13fe0198 | 984 | error = zfs_secpolicy_write_perms_ds(zc->zc_name, clone, |
34dc7c2f BB |
985 | ZFS_DELEG_PERM_MOUNT, cr); |
986 | ||
13fe0198 MA |
987 | dsl_dataset_name(origin, parentname); |
988 | if (error == 0) { | |
989 | error = zfs_secpolicy_write_perms_ds(parentname, origin, | |
34dc7c2f | 990 | ZFS_DELEG_PERM_PROMOTE, cr); |
13fe0198 MA |
991 | } |
992 | dsl_dataset_rele(clone, FTAG); | |
993 | dsl_dataset_rele(origin, FTAG); | |
34dc7c2f | 994 | } |
13fe0198 | 995 | dsl_pool_rele(dp, FTAG); |
34dc7c2f BB |
996 | return (error); |
997 | } | |
998 | ||
6f1ffb06 | 999 | /* ARGSUSED */ |
34dc7c2f | 1000 | static int |
6f1ffb06 | 1001 | zfs_secpolicy_recv(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1002 | { |
1003 | int error; | |
1004 | ||
1005 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
1006 | ZFS_DELEG_PERM_RECEIVE, cr)) != 0) | |
1007 | return (error); | |
1008 | ||
1009 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
1010 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
1011 | return (error); | |
1012 | ||
1013 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
1014 | ZFS_DELEG_PERM_CREATE, cr)); | |
1015 | } | |
1016 | ||
43e52edd BB |
1017 | /* ARGSUSED */ |
1018 | static int | |
1019 | zfs_secpolicy_recv_new(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1020 | { | |
1021 | return (zfs_secpolicy_recv(zc, innvl, cr)); | |
1022 | } | |
1023 | ||
34dc7c2f BB |
1024 | int |
1025 | zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr) | |
1026 | { | |
428870ff BB |
1027 | return (zfs_secpolicy_write_perms(name, |
1028 | ZFS_DELEG_PERM_SNAPSHOT, cr)); | |
34dc7c2f BB |
1029 | } |
1030 | ||
6f1ffb06 MA |
1031 | /* |
1032 | * Check for permission to create each snapshot in the nvlist. | |
1033 | */ | |
1034 | /* ARGSUSED */ | |
34dc7c2f | 1035 | static int |
6f1ffb06 | 1036 | zfs_secpolicy_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 1037 | { |
6f1ffb06 MA |
1038 | nvlist_t *snaps; |
1039 | int error = 0; | |
1040 | nvpair_t *pair; | |
1041 | ||
b83a0e2d DB |
1042 | snaps = fnvlist_lookup_nvlist(innvl, "snaps"); |
1043 | ||
6f1ffb06 MA |
1044 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; |
1045 | pair = nvlist_next_nvpair(snaps, pair)) { | |
1046 | char *name = nvpair_name(pair); | |
1047 | char *atp = strchr(name, '@'); | |
34dc7c2f | 1048 | |
6f1ffb06 | 1049 | if (atp == NULL) { |
2e528b49 | 1050 | error = SET_ERROR(EINVAL); |
6f1ffb06 MA |
1051 | break; |
1052 | } | |
1053 | *atp = '\0'; | |
1054 | error = zfs_secpolicy_snapshot_perms(name, cr); | |
1055 | *atp = '@'; | |
1056 | if (error != 0) | |
1057 | break; | |
1058 | } | |
1059 | return (error); | |
1060 | } | |
1061 | ||
da536844 | 1062 | /* |
b83a0e2d | 1063 | * Check for permission to create each bookmark in the nvlist. |
da536844 MA |
1064 | */ |
1065 | /* ARGSUSED */ | |
1066 | static int | |
1067 | zfs_secpolicy_bookmark(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1068 | { | |
1069 | int error = 0; | |
da536844 | 1070 | |
1c27024e | 1071 | for (nvpair_t *pair = nvlist_next_nvpair(innvl, NULL); |
da536844 MA |
1072 | pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { |
1073 | char *name = nvpair_name(pair); | |
1074 | char *hashp = strchr(name, '#'); | |
1075 | ||
1076 | if (hashp == NULL) { | |
1077 | error = SET_ERROR(EINVAL); | |
1078 | break; | |
1079 | } | |
1080 | *hashp = '\0'; | |
1081 | error = zfs_secpolicy_write_perms(name, | |
1082 | ZFS_DELEG_PERM_BOOKMARK, cr); | |
1083 | *hashp = '#'; | |
1084 | if (error != 0) | |
1085 | break; | |
1086 | } | |
1087 | return (error); | |
1088 | } | |
1089 | ||
a1d477c2 MA |
1090 | /* ARGSUSED */ |
1091 | static int | |
1092 | zfs_secpolicy_remap(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1093 | { | |
1094 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
1095 | ZFS_DELEG_PERM_REMAP, cr)); | |
1096 | } | |
1097 | ||
da536844 MA |
1098 | /* ARGSUSED */ |
1099 | static int | |
1100 | zfs_secpolicy_destroy_bookmarks(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1101 | { | |
1102 | nvpair_t *pair, *nextpair; | |
1103 | int error = 0; | |
1104 | ||
1105 | for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL; | |
1106 | pair = nextpair) { | |
1107 | char *name = nvpair_name(pair); | |
1108 | char *hashp = strchr(name, '#'); | |
1109 | nextpair = nvlist_next_nvpair(innvl, pair); | |
1110 | ||
1111 | if (hashp == NULL) { | |
1112 | error = SET_ERROR(EINVAL); | |
1113 | break; | |
1114 | } | |
1115 | ||
1116 | *hashp = '\0'; | |
1117 | error = zfs_secpolicy_write_perms(name, | |
1118 | ZFS_DELEG_PERM_DESTROY, cr); | |
1119 | *hashp = '#'; | |
1120 | if (error == ENOENT) { | |
1121 | /* | |
1122 | * Ignore any filesystems that don't exist (we consider | |
1123 | * their bookmarks "already destroyed"). Remove | |
1124 | * the name from the nvl here in case the filesystem | |
1125 | * is created between now and when we try to destroy | |
1126 | * the bookmark (in which case we don't want to | |
1127 | * destroy it since we haven't checked for permission). | |
1128 | */ | |
1129 | fnvlist_remove_nvpair(innvl, pair); | |
1130 | error = 0; | |
1131 | } | |
1132 | if (error != 0) | |
1133 | break; | |
1134 | } | |
1135 | ||
1136 | return (error); | |
1137 | } | |
1138 | ||
6f1ffb06 MA |
1139 | /* ARGSUSED */ |
1140 | static int | |
1141 | zfs_secpolicy_log_history(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1142 | { | |
1143 | /* | |
1144 | * Even root must have a proper TSD so that we know what pool | |
1145 | * to log to. | |
1146 | */ | |
1147 | if (tsd_get(zfs_allow_log_key) == NULL) | |
2e528b49 | 1148 | return (SET_ERROR(EPERM)); |
6f1ffb06 | 1149 | return (0); |
34dc7c2f BB |
1150 | } |
1151 | ||
1152 | static int | |
6f1ffb06 | 1153 | zfs_secpolicy_create_clone(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 1154 | { |
eca7b760 | 1155 | char parentname[ZFS_MAX_DATASET_NAME_LEN]; |
428870ff | 1156 | int error; |
6f1ffb06 | 1157 | char *origin; |
34dc7c2f BB |
1158 | |
1159 | if ((error = zfs_get_parent(zc->zc_name, parentname, | |
1160 | sizeof (parentname))) != 0) | |
1161 | return (error); | |
1162 | ||
6f1ffb06 MA |
1163 | if (nvlist_lookup_string(innvl, "origin", &origin) == 0 && |
1164 | (error = zfs_secpolicy_write_perms(origin, | |
1165 | ZFS_DELEG_PERM_CLONE, cr)) != 0) | |
1166 | return (error); | |
34dc7c2f BB |
1167 | |
1168 | if ((error = zfs_secpolicy_write_perms(parentname, | |
1169 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
1170 | return (error); | |
1171 | ||
6f1ffb06 MA |
1172 | return (zfs_secpolicy_write_perms(parentname, |
1173 | ZFS_DELEG_PERM_MOUNT, cr)); | |
34dc7c2f BB |
1174 | } |
1175 | ||
34dc7c2f BB |
1176 | /* |
1177 | * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires | |
1178 | * SYS_CONFIG privilege, which is not available in a local zone. | |
1179 | */ | |
1180 | /* ARGSUSED */ | |
1181 | static int | |
6f1ffb06 | 1182 | zfs_secpolicy_config(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1183 | { |
1184 | if (secpolicy_sys_config(cr, B_FALSE) != 0) | |
2e528b49 | 1185 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
1186 | |
1187 | return (0); | |
1188 | } | |
1189 | ||
572e2857 BB |
1190 | /* |
1191 | * Policy for object to name lookups. | |
1192 | */ | |
1193 | /* ARGSUSED */ | |
1194 | static int | |
6f1ffb06 | 1195 | zfs_secpolicy_diff(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
572e2857 BB |
1196 | { |
1197 | int error; | |
1198 | ||
1199 | if ((error = secpolicy_sys_config(cr, B_FALSE)) == 0) | |
1200 | return (0); | |
1201 | ||
1202 | error = zfs_secpolicy_write_perms(zc->zc_name, ZFS_DELEG_PERM_DIFF, cr); | |
1203 | return (error); | |
1204 | } | |
1205 | ||
34dc7c2f BB |
1206 | /* |
1207 | * Policy for fault injection. Requires all privileges. | |
1208 | */ | |
1209 | /* ARGSUSED */ | |
1210 | static int | |
6f1ffb06 | 1211 | zfs_secpolicy_inject(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1212 | { |
1213 | return (secpolicy_zinject(cr)); | |
1214 | } | |
1215 | ||
6f1ffb06 | 1216 | /* ARGSUSED */ |
34dc7c2f | 1217 | static int |
6f1ffb06 | 1218 | zfs_secpolicy_inherit_prop(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1219 | { |
1220 | zfs_prop_t prop = zfs_name_to_prop(zc->zc_value); | |
1221 | ||
1222 | if (prop == ZPROP_INVAL) { | |
1223 | if (!zfs_prop_user(zc->zc_value)) | |
2e528b49 | 1224 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1225 | return (zfs_secpolicy_write_perms(zc->zc_name, |
1226 | ZFS_DELEG_PERM_USERPROP, cr)); | |
1227 | } else { | |
428870ff BB |
1228 | return (zfs_secpolicy_setprop(zc->zc_name, prop, |
1229 | NULL, cr)); | |
34dc7c2f BB |
1230 | } |
1231 | } | |
1232 | ||
9babb374 | 1233 | static int |
6f1ffb06 | 1234 | zfs_secpolicy_userspace_one(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1235 | { |
6f1ffb06 | 1236 | int err = zfs_secpolicy_read(zc, innvl, cr); |
9babb374 BB |
1237 | if (err) |
1238 | return (err); | |
1239 | ||
1240 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
2e528b49 | 1241 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
1242 | |
1243 | if (zc->zc_value[0] == 0) { | |
1244 | /* | |
1245 | * They are asking about a posix uid/gid. If it's | |
1246 | * themself, allow it. | |
1247 | */ | |
1248 | if (zc->zc_objset_type == ZFS_PROP_USERUSED || | |
1de321e6 JX |
1249 | zc->zc_objset_type == ZFS_PROP_USERQUOTA || |
1250 | zc->zc_objset_type == ZFS_PROP_USEROBJUSED || | |
1251 | zc->zc_objset_type == ZFS_PROP_USEROBJQUOTA) { | |
9babb374 BB |
1252 | if (zc->zc_guid == crgetuid(cr)) |
1253 | return (0); | |
9c5167d1 NF |
1254 | } else if (zc->zc_objset_type == ZFS_PROP_GROUPUSED || |
1255 | zc->zc_objset_type == ZFS_PROP_GROUPQUOTA || | |
1256 | zc->zc_objset_type == ZFS_PROP_GROUPOBJUSED || | |
1257 | zc->zc_objset_type == ZFS_PROP_GROUPOBJQUOTA) { | |
9babb374 BB |
1258 | if (groupmember(zc->zc_guid, cr)) |
1259 | return (0); | |
1260 | } | |
9c5167d1 | 1261 | /* else is for project quota/used */ |
9babb374 BB |
1262 | } |
1263 | ||
1264 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
1265 | userquota_perms[zc->zc_objset_type], cr)); | |
1266 | } | |
1267 | ||
1268 | static int | |
6f1ffb06 | 1269 | zfs_secpolicy_userspace_many(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1270 | { |
6f1ffb06 | 1271 | int err = zfs_secpolicy_read(zc, innvl, cr); |
9babb374 BB |
1272 | if (err) |
1273 | return (err); | |
1274 | ||
1275 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
2e528b49 | 1276 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
1277 | |
1278 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
1279 | userquota_perms[zc->zc_objset_type], cr)); | |
1280 | } | |
1281 | ||
6f1ffb06 | 1282 | /* ARGSUSED */ |
9babb374 | 1283 | static int |
6f1ffb06 | 1284 | zfs_secpolicy_userspace_upgrade(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1285 | { |
428870ff BB |
1286 | return (zfs_secpolicy_setprop(zc->zc_name, ZFS_PROP_VERSION, |
1287 | NULL, cr)); | |
9babb374 BB |
1288 | } |
1289 | ||
6f1ffb06 | 1290 | /* ARGSUSED */ |
45d1cae3 | 1291 | static int |
6f1ffb06 | 1292 | zfs_secpolicy_hold(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
45d1cae3 | 1293 | { |
13fe0198 MA |
1294 | nvpair_t *pair; |
1295 | nvlist_t *holds; | |
1296 | int error; | |
1297 | ||
b83a0e2d | 1298 | holds = fnvlist_lookup_nvlist(innvl, "holds"); |
13fe0198 MA |
1299 | |
1300 | for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL; | |
1301 | pair = nvlist_next_nvpair(holds, pair)) { | |
eca7b760 | 1302 | char fsname[ZFS_MAX_DATASET_NAME_LEN]; |
13fe0198 MA |
1303 | error = dmu_fsname(nvpair_name(pair), fsname); |
1304 | if (error != 0) | |
1305 | return (error); | |
1306 | error = zfs_secpolicy_write_perms(fsname, | |
1307 | ZFS_DELEG_PERM_HOLD, cr); | |
1308 | if (error != 0) | |
1309 | return (error); | |
1310 | } | |
1311 | return (0); | |
45d1cae3 BB |
1312 | } |
1313 | ||
6f1ffb06 | 1314 | /* ARGSUSED */ |
45d1cae3 | 1315 | static int |
6f1ffb06 | 1316 | zfs_secpolicy_release(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
45d1cae3 | 1317 | { |
13fe0198 MA |
1318 | nvpair_t *pair; |
1319 | int error; | |
1320 | ||
1321 | for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL; | |
1322 | pair = nvlist_next_nvpair(innvl, pair)) { | |
eca7b760 | 1323 | char fsname[ZFS_MAX_DATASET_NAME_LEN]; |
13fe0198 MA |
1324 | error = dmu_fsname(nvpair_name(pair), fsname); |
1325 | if (error != 0) | |
1326 | return (error); | |
1327 | error = zfs_secpolicy_write_perms(fsname, | |
1328 | ZFS_DELEG_PERM_RELEASE, cr); | |
1329 | if (error != 0) | |
1330 | return (error); | |
1331 | } | |
1332 | return (0); | |
45d1cae3 BB |
1333 | } |
1334 | ||
572e2857 BB |
1335 | /* |
1336 | * Policy for allowing temporary snapshots to be taken or released | |
1337 | */ | |
1338 | static int | |
6f1ffb06 | 1339 | zfs_secpolicy_tmp_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
572e2857 BB |
1340 | { |
1341 | /* | |
1342 | * A temporary snapshot is the same as a snapshot, | |
1343 | * hold, destroy and release all rolled into one. | |
1344 | * Delegated diff alone is sufficient that we allow this. | |
1345 | */ | |
1346 | int error; | |
1347 | ||
1348 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
1349 | ZFS_DELEG_PERM_DIFF, cr)) == 0) | |
1350 | return (0); | |
1351 | ||
6f1ffb06 | 1352 | error = zfs_secpolicy_snapshot_perms(zc->zc_name, cr); |
b83a0e2d DB |
1353 | |
1354 | if (innvl != NULL) { | |
1355 | if (error == 0) | |
1356 | error = zfs_secpolicy_hold(zc, innvl, cr); | |
1357 | if (error == 0) | |
1358 | error = zfs_secpolicy_release(zc, innvl, cr); | |
1359 | if (error == 0) | |
1360 | error = zfs_secpolicy_destroy(zc, innvl, cr); | |
1361 | } | |
572e2857 BB |
1362 | return (error); |
1363 | } | |
1364 | ||
b5256303 TC |
1365 | static int |
1366 | zfs_secpolicy_load_key(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1367 | { | |
1368 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
1369 | ZFS_DELEG_PERM_LOAD_KEY, cr)); | |
1370 | } | |
1371 | ||
1372 | static int | |
1373 | zfs_secpolicy_change_key(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1374 | { | |
1375 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
1376 | ZFS_DELEG_PERM_CHANGE_KEY, cr)); | |
1377 | } | |
1378 | ||
34dc7c2f BB |
1379 | /* |
1380 | * Returns the nvlist as specified by the user in the zfs_cmd_t. | |
1381 | */ | |
1382 | static int | |
9babb374 | 1383 | get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp) |
34dc7c2f BB |
1384 | { |
1385 | char *packed; | |
1386 | int error; | |
1387 | nvlist_t *list = NULL; | |
1388 | ||
1389 | /* | |
1390 | * Read in and unpack the user-supplied nvlist. | |
1391 | */ | |
1392 | if (size == 0) | |
2e528b49 | 1393 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 1394 | |
77aef6f6 | 1395 | packed = vmem_alloc(size, KM_SLEEP); |
34dc7c2f | 1396 | |
9babb374 BB |
1397 | if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size, |
1398 | iflag)) != 0) { | |
77aef6f6 | 1399 | vmem_free(packed, size); |
0de7c552 | 1400 | return (SET_ERROR(EFAULT)); |
34dc7c2f BB |
1401 | } |
1402 | ||
1403 | if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) { | |
77aef6f6 | 1404 | vmem_free(packed, size); |
34dc7c2f BB |
1405 | return (error); |
1406 | } | |
1407 | ||
77aef6f6 | 1408 | vmem_free(packed, size); |
34dc7c2f BB |
1409 | |
1410 | *nvp = list; | |
1411 | return (0); | |
1412 | } | |
1413 | ||
6f1ffb06 MA |
1414 | /* |
1415 | * Reduce the size of this nvlist until it can be serialized in 'max' bytes. | |
1416 | * Entries will be removed from the end of the nvlist, and one int32 entry | |
1417 | * named "N_MORE_ERRORS" will be added indicating how many entries were | |
1418 | * removed. | |
1419 | */ | |
428870ff | 1420 | static int |
6f1ffb06 | 1421 | nvlist_smush(nvlist_t *errors, size_t max) |
428870ff BB |
1422 | { |
1423 | size_t size; | |
1424 | ||
6f1ffb06 | 1425 | size = fnvlist_size(errors); |
428870ff | 1426 | |
6f1ffb06 | 1427 | if (size > max) { |
428870ff BB |
1428 | nvpair_t *more_errors; |
1429 | int n = 0; | |
1430 | ||
6f1ffb06 | 1431 | if (max < 1024) |
2e528b49 | 1432 | return (SET_ERROR(ENOMEM)); |
428870ff | 1433 | |
6f1ffb06 MA |
1434 | fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, 0); |
1435 | more_errors = nvlist_prev_nvpair(errors, NULL); | |
428870ff BB |
1436 | |
1437 | do { | |
6f1ffb06 | 1438 | nvpair_t *pair = nvlist_prev_nvpair(errors, |
428870ff | 1439 | more_errors); |
6f1ffb06 | 1440 | fnvlist_remove_nvpair(errors, pair); |
428870ff | 1441 | n++; |
6f1ffb06 MA |
1442 | size = fnvlist_size(errors); |
1443 | } while (size > max); | |
428870ff | 1444 | |
6f1ffb06 MA |
1445 | fnvlist_remove_nvpair(errors, more_errors); |
1446 | fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, n); | |
1447 | ASSERT3U(fnvlist_size(errors), <=, max); | |
428870ff BB |
1448 | } |
1449 | ||
1450 | return (0); | |
1451 | } | |
1452 | ||
34dc7c2f BB |
1453 | static int |
1454 | put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl) | |
1455 | { | |
1456 | char *packed = NULL; | |
428870ff | 1457 | int error = 0; |
34dc7c2f | 1458 | size_t size; |
34dc7c2f | 1459 | |
6f1ffb06 | 1460 | size = fnvlist_size(nvl); |
34dc7c2f BB |
1461 | |
1462 | if (size > zc->zc_nvlist_dst_size) { | |
2e528b49 | 1463 | error = SET_ERROR(ENOMEM); |
34dc7c2f | 1464 | } else { |
6f1ffb06 | 1465 | packed = fnvlist_pack(nvl, &size); |
428870ff BB |
1466 | if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst, |
1467 | size, zc->zc_iflags) != 0) | |
2e528b49 | 1468 | error = SET_ERROR(EFAULT); |
6f1ffb06 | 1469 | fnvlist_pack_free(packed, size); |
34dc7c2f BB |
1470 | } |
1471 | ||
1472 | zc->zc_nvlist_dst_size = size; | |
6f1ffb06 | 1473 | zc->zc_nvlist_dst_filled = B_TRUE; |
34dc7c2f BB |
1474 | return (error); |
1475 | } | |
1476 | ||
d99a0153 CW |
1477 | int |
1478 | getzfsvfs_impl(objset_t *os, zfsvfs_t **zfvp) | |
9babb374 | 1479 | { |
d99a0153 | 1480 | int error = 0; |
428870ff | 1481 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
2e528b49 | 1482 | return (SET_ERROR(EINVAL)); |
428870ff | 1483 | } |
9babb374 | 1484 | |
428870ff | 1485 | mutex_enter(&os->os_user_ptr_lock); |
0037b49e | 1486 | *zfvp = dmu_objset_get_user(os); |
061460df | 1487 | /* bump s_active only when non-zero to prevent umount race */ |
0037b49e BB |
1488 | if (*zfvp == NULL || (*zfvp)->z_sb == NULL || |
1489 | !atomic_inc_not_zero(&((*zfvp)->z_sb->s_active))) { | |
2e528b49 | 1490 | error = SET_ERROR(ESRCH); |
9babb374 | 1491 | } |
428870ff | 1492 | mutex_exit(&os->os_user_ptr_lock); |
d99a0153 CW |
1493 | return (error); |
1494 | } | |
1495 | ||
8d103d88 | 1496 | int |
d99a0153 CW |
1497 | getzfsvfs(const char *dsname, zfsvfs_t **zfvp) |
1498 | { | |
1499 | objset_t *os; | |
1500 | int error; | |
1501 | ||
1502 | error = dmu_objset_hold(dsname, FTAG, &os); | |
1503 | if (error != 0) | |
1504 | return (error); | |
1505 | ||
1506 | error = getzfsvfs_impl(os, zfvp); | |
428870ff | 1507 | dmu_objset_rele(os, FTAG); |
9babb374 BB |
1508 | return (error); |
1509 | } | |
1510 | ||
1511 | /* | |
0037b49e | 1512 | * Find a zfsvfs_t for a mounted filesystem, or create our own, in which |
2cf7f52b | 1513 | * case its z_sb will be NULL, and it will be opened as the owner. |
9ae529ec CS |
1514 | * If 'writer' is set, the z_teardown_lock will be held for RW_WRITER, |
1515 | * which prevents all inode ops from running. | |
9babb374 BB |
1516 | */ |
1517 | static int | |
f298b24d | 1518 | zfsvfs_hold(const char *name, void *tag, zfsvfs_t **zfvp, boolean_t writer) |
9babb374 BB |
1519 | { |
1520 | int error = 0; | |
9babb374 | 1521 | |
f298b24d | 1522 | if (getzfsvfs(name, zfvp) != 0) |
163a8c28 | 1523 | error = zfsvfs_create(name, B_FALSE, zfvp); |
9babb374 | 1524 | if (error == 0) { |
0037b49e | 1525 | rrm_enter(&(*zfvp)->z_teardown_lock, (writer) ? RW_WRITER : |
572e2857 | 1526 | RW_READER, tag); |
0037b49e | 1527 | if ((*zfvp)->z_unmounted) { |
9babb374 BB |
1528 | /* |
1529 | * XXX we could probably try again, since the unmounting | |
1530 | * thread should be just about to disassociate the | |
0037b49e | 1531 | * objset from the zfsvfs. |
9babb374 | 1532 | */ |
0037b49e | 1533 | rrm_exit(&(*zfvp)->z_teardown_lock, tag); |
2e528b49 | 1534 | return (SET_ERROR(EBUSY)); |
9babb374 BB |
1535 | } |
1536 | } | |
1537 | return (error); | |
1538 | } | |
1539 | ||
1540 | static void | |
f298b24d | 1541 | zfsvfs_rele(zfsvfs_t *zfsvfs, void *tag) |
9babb374 | 1542 | { |
0037b49e | 1543 | rrm_exit(&zfsvfs->z_teardown_lock, tag); |
9babb374 | 1544 | |
0037b49e BB |
1545 | if (zfsvfs->z_sb) { |
1546 | deactivate_super(zfsvfs->z_sb); | |
9babb374 | 1547 | } else { |
b5256303 | 1548 | dmu_objset_disown(zfsvfs->z_os, B_TRUE, zfsvfs); |
f298b24d | 1549 | zfsvfs_free(zfsvfs); |
9babb374 BB |
1550 | } |
1551 | } | |
1552 | ||
34dc7c2f BB |
1553 | static int |
1554 | zfs_ioc_pool_create(zfs_cmd_t *zc) | |
1555 | { | |
1556 | int error; | |
1557 | nvlist_t *config, *props = NULL; | |
b128c09f BB |
1558 | nvlist_t *rootprops = NULL; |
1559 | nvlist_t *zplprops = NULL; | |
b5256303 | 1560 | dsl_crypto_params_t *dcp = NULL; |
4ceb8dd6 | 1561 | char *spa_name = zc->zc_name; |
34dc7c2f | 1562 | |
c65aa5b2 BB |
1563 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, |
1564 | zc->zc_iflags, &config))) | |
34dc7c2f BB |
1565 | return (error); |
1566 | ||
1567 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1568 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1569 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1570 | nvlist_free(config); |
1571 | return (error); | |
1572 | } | |
1573 | ||
b128c09f BB |
1574 | if (props) { |
1575 | nvlist_t *nvl = NULL; | |
b5256303 | 1576 | nvlist_t *hidden_args = NULL; |
b128c09f | 1577 | uint64_t version = SPA_VERSION; |
4ceb8dd6 | 1578 | char *tname; |
b128c09f BB |
1579 | |
1580 | (void) nvlist_lookup_uint64(props, | |
1581 | zpool_prop_to_name(ZPOOL_PROP_VERSION), &version); | |
9ae529ec | 1582 | if (!SPA_VERSION_IS_SUPPORTED(version)) { |
2e528b49 | 1583 | error = SET_ERROR(EINVAL); |
b128c09f BB |
1584 | goto pool_props_bad; |
1585 | } | |
1586 | (void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl); | |
1587 | if (nvl) { | |
1588 | error = nvlist_dup(nvl, &rootprops, KM_SLEEP); | |
1589 | if (error != 0) { | |
1590 | nvlist_free(config); | |
1591 | nvlist_free(props); | |
1592 | return (error); | |
1593 | } | |
1594 | (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS); | |
1595 | } | |
b5256303 TC |
1596 | |
1597 | (void) nvlist_lookup_nvlist(props, ZPOOL_HIDDEN_ARGS, | |
1598 | &hidden_args); | |
1599 | error = dsl_crypto_params_create_nvlist(DCP_CMD_NONE, | |
1600 | rootprops, hidden_args, &dcp); | |
1601 | if (error != 0) { | |
1602 | nvlist_free(config); | |
1603 | nvlist_free(props); | |
1604 | return (error); | |
1605 | } | |
1606 | (void) nvlist_remove_all(props, ZPOOL_HIDDEN_ARGS); | |
1607 | ||
b128c09f BB |
1608 | VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
1609 | error = zfs_fill_zplprops_root(version, rootprops, | |
1610 | zplprops, NULL); | |
13fe0198 | 1611 | if (error != 0) |
b128c09f | 1612 | goto pool_props_bad; |
4ceb8dd6 | 1613 | |
1614 | if (nvlist_lookup_string(props, | |
1615 | zpool_prop_to_name(ZPOOL_PROP_TNAME), &tname) == 0) | |
1616 | spa_name = tname; | |
b128c09f BB |
1617 | } |
1618 | ||
b5256303 | 1619 | error = spa_create(zc->zc_name, config, props, zplprops, dcp); |
b128c09f BB |
1620 | |
1621 | /* | |
1622 | * Set the remaining root properties | |
1623 | */ | |
4ceb8dd6 | 1624 | if (!error && (error = zfs_set_prop_nvlist(spa_name, |
428870ff | 1625 | ZPROP_SRC_LOCAL, rootprops, NULL)) != 0) |
4ceb8dd6 | 1626 | (void) spa_destroy(spa_name); |
34dc7c2f | 1627 | |
b128c09f BB |
1628 | pool_props_bad: |
1629 | nvlist_free(rootprops); | |
1630 | nvlist_free(zplprops); | |
34dc7c2f | 1631 | nvlist_free(config); |
b128c09f | 1632 | nvlist_free(props); |
b5256303 | 1633 | dsl_crypto_params_free(dcp, !!error); |
34dc7c2f BB |
1634 | |
1635 | return (error); | |
1636 | } | |
1637 | ||
1638 | static int | |
1639 | zfs_ioc_pool_destroy(zfs_cmd_t *zc) | |
1640 | { | |
1641 | int error; | |
1642 | zfs_log_history(zc); | |
1643 | error = spa_destroy(zc->zc_name); | |
a0bd735a | 1644 | |
34dc7c2f BB |
1645 | return (error); |
1646 | } | |
1647 | ||
1648 | static int | |
1649 | zfs_ioc_pool_import(zfs_cmd_t *zc) | |
1650 | { | |
34dc7c2f BB |
1651 | nvlist_t *config, *props = NULL; |
1652 | uint64_t guid; | |
428870ff | 1653 | int error; |
34dc7c2f BB |
1654 | |
1655 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1656 | zc->zc_iflags, &config)) != 0) |
34dc7c2f BB |
1657 | return (error); |
1658 | ||
1659 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1660 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1661 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1662 | nvlist_free(config); |
1663 | return (error); | |
1664 | } | |
1665 | ||
1666 | if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 || | |
1667 | guid != zc->zc_guid) | |
2e528b49 | 1668 | error = SET_ERROR(EINVAL); |
34dc7c2f | 1669 | else |
572e2857 | 1670 | error = spa_import(zc->zc_name, config, props, zc->zc_cookie); |
34dc7c2f | 1671 | |
572e2857 BB |
1672 | if (zc->zc_nvlist_dst != 0) { |
1673 | int err; | |
1674 | ||
1675 | if ((err = put_nvlist(zc, config)) != 0) | |
1676 | error = err; | |
1677 | } | |
428870ff | 1678 | |
34dc7c2f | 1679 | nvlist_free(config); |
8a5fc748 | 1680 | nvlist_free(props); |
34dc7c2f BB |
1681 | |
1682 | return (error); | |
1683 | } | |
1684 | ||
1685 | static int | |
1686 | zfs_ioc_pool_export(zfs_cmd_t *zc) | |
1687 | { | |
1688 | int error; | |
b128c09f | 1689 | boolean_t force = (boolean_t)zc->zc_cookie; |
fb5f0bc8 | 1690 | boolean_t hardforce = (boolean_t)zc->zc_guid; |
b128c09f | 1691 | |
34dc7c2f | 1692 | zfs_log_history(zc); |
fb5f0bc8 | 1693 | error = spa_export(zc->zc_name, NULL, force, hardforce); |
a0bd735a | 1694 | |
34dc7c2f BB |
1695 | return (error); |
1696 | } | |
1697 | ||
1698 | static int | |
1699 | zfs_ioc_pool_configs(zfs_cmd_t *zc) | |
1700 | { | |
1701 | nvlist_t *configs; | |
1702 | int error; | |
1703 | ||
1704 | if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL) | |
2e528b49 | 1705 | return (SET_ERROR(EEXIST)); |
34dc7c2f BB |
1706 | |
1707 | error = put_nvlist(zc, configs); | |
1708 | ||
1709 | nvlist_free(configs); | |
1710 | ||
1711 | return (error); | |
1712 | } | |
1713 | ||
9ae529ec CS |
1714 | /* |
1715 | * inputs: | |
1716 | * zc_name name of the pool | |
1717 | * | |
1718 | * outputs: | |
1719 | * zc_cookie real errno | |
1720 | * zc_nvlist_dst config nvlist | |
1721 | * zc_nvlist_dst_size size of config nvlist | |
1722 | */ | |
34dc7c2f BB |
1723 | static int |
1724 | zfs_ioc_pool_stats(zfs_cmd_t *zc) | |
1725 | { | |
1726 | nvlist_t *config; | |
1727 | int error; | |
1728 | int ret = 0; | |
1729 | ||
1730 | error = spa_get_stats(zc->zc_name, &config, zc->zc_value, | |
1731 | sizeof (zc->zc_value)); | |
1732 | ||
1733 | if (config != NULL) { | |
1734 | ret = put_nvlist(zc, config); | |
1735 | nvlist_free(config); | |
1736 | ||
1737 | /* | |
1738 | * The config may be present even if 'error' is non-zero. | |
1739 | * In this case we return success, and preserve the real errno | |
1740 | * in 'zc_cookie'. | |
1741 | */ | |
1742 | zc->zc_cookie = error; | |
1743 | } else { | |
1744 | ret = error; | |
1745 | } | |
1746 | ||
1747 | return (ret); | |
1748 | } | |
1749 | ||
1750 | /* | |
1751 | * Try to import the given pool, returning pool stats as appropriate so that | |
1752 | * user land knows which devices are available and overall pool health. | |
1753 | */ | |
1754 | static int | |
1755 | zfs_ioc_pool_tryimport(zfs_cmd_t *zc) | |
1756 | { | |
379ca9cf | 1757 | nvlist_t *tryconfig, *config = NULL; |
34dc7c2f BB |
1758 | int error; |
1759 | ||
1760 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1761 | zc->zc_iflags, &tryconfig)) != 0) |
34dc7c2f BB |
1762 | return (error); |
1763 | ||
1764 | config = spa_tryimport(tryconfig); | |
1765 | ||
1766 | nvlist_free(tryconfig); | |
1767 | ||
1768 | if (config == NULL) | |
2e528b49 | 1769 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1770 | |
1771 | error = put_nvlist(zc, config); | |
1772 | nvlist_free(config); | |
1773 | ||
1774 | return (error); | |
1775 | } | |
1776 | ||
428870ff BB |
1777 | /* |
1778 | * inputs: | |
1779 | * zc_name name of the pool | |
1780 | * zc_cookie scan func (pool_scan_func_t) | |
0ea05c64 | 1781 | * zc_flags scrub pause/resume flag (pool_scrub_cmd_t) |
428870ff | 1782 | */ |
34dc7c2f | 1783 | static int |
428870ff | 1784 | zfs_ioc_pool_scan(zfs_cmd_t *zc) |
34dc7c2f BB |
1785 | { |
1786 | spa_t *spa; | |
1787 | int error; | |
1788 | ||
0ea05c64 AP |
1789 | if (zc->zc_flags >= POOL_SCRUB_FLAGS_END) |
1790 | return (SET_ERROR(EINVAL)); | |
1791 | ||
1724eb62 | 1792 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) |
1793 | return (error); | |
1794 | ||
0ea05c64 AP |
1795 | if (zc->zc_flags == POOL_SCRUB_PAUSE) |
1796 | error = spa_scrub_pause_resume(spa, POOL_SCRUB_PAUSE); | |
1797 | else if (zc->zc_cookie == POOL_SCAN_NONE) | |
428870ff BB |
1798 | error = spa_scan_stop(spa); |
1799 | else | |
1800 | error = spa_scan(spa, zc->zc_cookie); | |
34dc7c2f BB |
1801 | |
1802 | spa_close(spa, FTAG); | |
1803 | ||
1804 | return (error); | |
1805 | } | |
1806 | ||
1807 | static int | |
1808 | zfs_ioc_pool_freeze(zfs_cmd_t *zc) | |
1809 | { | |
1810 | spa_t *spa; | |
1811 | int error; | |
1812 | ||
1813 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1814 | if (error == 0) { | |
1815 | spa_freeze(spa); | |
1816 | spa_close(spa, FTAG); | |
1817 | } | |
1818 | return (error); | |
1819 | } | |
1820 | ||
1821 | static int | |
1822 | zfs_ioc_pool_upgrade(zfs_cmd_t *zc) | |
1823 | { | |
1824 | spa_t *spa; | |
1825 | int error; | |
1826 | ||
1827 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1828 | return (error); | |
1829 | ||
9ae529ec CS |
1830 | if (zc->zc_cookie < spa_version(spa) || |
1831 | !SPA_VERSION_IS_SUPPORTED(zc->zc_cookie)) { | |
34dc7c2f | 1832 | spa_close(spa, FTAG); |
2e528b49 | 1833 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1834 | } |
1835 | ||
1836 | spa_upgrade(spa, zc->zc_cookie); | |
1837 | spa_close(spa, FTAG); | |
1838 | ||
1839 | return (error); | |
1840 | } | |
1841 | ||
1842 | static int | |
1843 | zfs_ioc_pool_get_history(zfs_cmd_t *zc) | |
1844 | { | |
1845 | spa_t *spa; | |
1846 | char *hist_buf; | |
1847 | uint64_t size; | |
1848 | int error; | |
1849 | ||
1850 | if ((size = zc->zc_history_len) == 0) | |
2e528b49 | 1851 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1852 | |
1853 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1854 | return (error); | |
1855 | ||
1856 | if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { | |
1857 | spa_close(spa, FTAG); | |
2e528b49 | 1858 | return (SET_ERROR(ENOTSUP)); |
34dc7c2f BB |
1859 | } |
1860 | ||
34b84cb8 | 1861 | hist_buf = vmem_alloc(size, KM_SLEEP); |
34dc7c2f BB |
1862 | if ((error = spa_history_get(spa, &zc->zc_history_offset, |
1863 | &zc->zc_history_len, hist_buf)) == 0) { | |
9babb374 BB |
1864 | error = ddi_copyout(hist_buf, |
1865 | (void *)(uintptr_t)zc->zc_history, | |
1866 | zc->zc_history_len, zc->zc_iflags); | |
34dc7c2f BB |
1867 | } |
1868 | ||
1869 | spa_close(spa, FTAG); | |
34b84cb8 | 1870 | vmem_free(hist_buf, size); |
34dc7c2f BB |
1871 | return (error); |
1872 | } | |
1873 | ||
3541dc6d GA |
1874 | static int |
1875 | zfs_ioc_pool_reguid(zfs_cmd_t *zc) | |
1876 | { | |
1877 | spa_t *spa; | |
1878 | int error; | |
1879 | ||
1880 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1881 | if (error == 0) { | |
1882 | error = spa_change_guid(spa); | |
1883 | spa_close(spa, FTAG); | |
1884 | } | |
1885 | return (error); | |
1886 | } | |
1887 | ||
34dc7c2f BB |
1888 | static int |
1889 | zfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc) | |
1890 | { | |
13fe0198 | 1891 | return (dsl_dsobj_to_dsname(zc->zc_name, zc->zc_obj, zc->zc_value)); |
34dc7c2f BB |
1892 | } |
1893 | ||
428870ff BB |
1894 | /* |
1895 | * inputs: | |
1896 | * zc_name name of filesystem | |
1897 | * zc_obj object to find | |
1898 | * | |
1899 | * outputs: | |
1900 | * zc_value name of object | |
1901 | */ | |
34dc7c2f BB |
1902 | static int |
1903 | zfs_ioc_obj_to_path(zfs_cmd_t *zc) | |
1904 | { | |
428870ff | 1905 | objset_t *os; |
34dc7c2f BB |
1906 | int error; |
1907 | ||
428870ff | 1908 | /* XXX reading from objset not owned */ |
b5256303 TC |
1909 | if ((error = dmu_objset_hold_flags(zc->zc_name, B_TRUE, |
1910 | FTAG, &os)) != 0) | |
34dc7c2f | 1911 | return (error); |
428870ff | 1912 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
b5256303 | 1913 | dmu_objset_rele_flags(os, B_TRUE, FTAG); |
2e528b49 | 1914 | return (SET_ERROR(EINVAL)); |
428870ff BB |
1915 | } |
1916 | error = zfs_obj_to_path(os, zc->zc_obj, zc->zc_value, | |
34dc7c2f | 1917 | sizeof (zc->zc_value)); |
b5256303 | 1918 | dmu_objset_rele_flags(os, B_TRUE, FTAG); |
34dc7c2f BB |
1919 | |
1920 | return (error); | |
1921 | } | |
1922 | ||
572e2857 BB |
1923 | /* |
1924 | * inputs: | |
1925 | * zc_name name of filesystem | |
1926 | * zc_obj object to find | |
1927 | * | |
1928 | * outputs: | |
1929 | * zc_stat stats on object | |
1930 | * zc_value path to object | |
1931 | */ | |
1932 | static int | |
1933 | zfs_ioc_obj_to_stats(zfs_cmd_t *zc) | |
1934 | { | |
1935 | objset_t *os; | |
1936 | int error; | |
1937 | ||
1938 | /* XXX reading from objset not owned */ | |
b5256303 TC |
1939 | if ((error = dmu_objset_hold_flags(zc->zc_name, B_TRUE, |
1940 | FTAG, &os)) != 0) | |
572e2857 BB |
1941 | return (error); |
1942 | if (dmu_objset_type(os) != DMU_OST_ZFS) { | |
b5256303 | 1943 | dmu_objset_rele_flags(os, B_TRUE, FTAG); |
2e528b49 | 1944 | return (SET_ERROR(EINVAL)); |
572e2857 BB |
1945 | } |
1946 | error = zfs_obj_to_stats(os, zc->zc_obj, &zc->zc_stat, zc->zc_value, | |
1947 | sizeof (zc->zc_value)); | |
b5256303 | 1948 | dmu_objset_rele_flags(os, B_TRUE, FTAG); |
572e2857 BB |
1949 | |
1950 | return (error); | |
1951 | } | |
1952 | ||
34dc7c2f BB |
1953 | static int |
1954 | zfs_ioc_vdev_add(zfs_cmd_t *zc) | |
1955 | { | |
1956 | spa_t *spa; | |
1957 | int error; | |
64ad2b26 | 1958 | nvlist_t *config; |
34dc7c2f BB |
1959 | |
1960 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1961 | if (error != 0) | |
1962 | return (error); | |
1963 | ||
1964 | error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1965 | zc->zc_iflags, &config); |
34dc7c2f BB |
1966 | if (error == 0) { |
1967 | error = spa_vdev_add(spa, config); | |
1968 | nvlist_free(config); | |
1969 | } | |
1970 | spa_close(spa, FTAG); | |
1971 | return (error); | |
1972 | } | |
1973 | ||
428870ff BB |
1974 | /* |
1975 | * inputs: | |
1976 | * zc_name name of the pool | |
a1d477c2 MA |
1977 | * zc_guid guid of vdev to remove |
1978 | * zc_cookie cancel removal | |
428870ff | 1979 | */ |
34dc7c2f BB |
1980 | static int |
1981 | zfs_ioc_vdev_remove(zfs_cmd_t *zc) | |
1982 | { | |
1983 | spa_t *spa; | |
1984 | int error; | |
1985 | ||
1986 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1987 | if (error != 0) | |
1988 | return (error); | |
a1d477c2 MA |
1989 | if (zc->zc_cookie != 0) { |
1990 | error = spa_vdev_remove_cancel(spa); | |
1991 | } else { | |
1992 | error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE); | |
1993 | } | |
34dc7c2f BB |
1994 | spa_close(spa, FTAG); |
1995 | return (error); | |
1996 | } | |
1997 | ||
1998 | static int | |
1999 | zfs_ioc_vdev_set_state(zfs_cmd_t *zc) | |
2000 | { | |
2001 | spa_t *spa; | |
2002 | int error; | |
2003 | vdev_state_t newstate = VDEV_STATE_UNKNOWN; | |
2004 | ||
2005 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
2006 | return (error); | |
2007 | switch (zc->zc_cookie) { | |
2008 | case VDEV_STATE_ONLINE: | |
2009 | error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate); | |
2010 | break; | |
2011 | ||
2012 | case VDEV_STATE_OFFLINE: | |
2013 | error = vdev_offline(spa, zc->zc_guid, zc->zc_obj); | |
2014 | break; | |
2015 | ||
2016 | case VDEV_STATE_FAULTED: | |
428870ff | 2017 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
4a283c7f TH |
2018 | zc->zc_obj != VDEV_AUX_EXTERNAL && |
2019 | zc->zc_obj != VDEV_AUX_EXTERNAL_PERSIST) | |
428870ff BB |
2020 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; |
2021 | ||
2022 | error = vdev_fault(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
2023 | break; |
2024 | ||
2025 | case VDEV_STATE_DEGRADED: | |
428870ff BB |
2026 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
2027 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
2028 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
2029 | ||
2030 | error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
2031 | break; |
2032 | ||
2033 | default: | |
2e528b49 | 2034 | error = SET_ERROR(EINVAL); |
34dc7c2f BB |
2035 | } |
2036 | zc->zc_cookie = newstate; | |
2037 | spa_close(spa, FTAG); | |
2038 | return (error); | |
2039 | } | |
2040 | ||
2041 | static int | |
2042 | zfs_ioc_vdev_attach(zfs_cmd_t *zc) | |
2043 | { | |
2044 | spa_t *spa; | |
2045 | int replacing = zc->zc_cookie; | |
2046 | nvlist_t *config; | |
2047 | int error; | |
2048 | ||
2049 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
2050 | return (error); | |
2051 | ||
2052 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 2053 | zc->zc_iflags, &config)) == 0) { |
34dc7c2f BB |
2054 | error = spa_vdev_attach(spa, zc->zc_guid, config, replacing); |
2055 | nvlist_free(config); | |
2056 | } | |
2057 | ||
2058 | spa_close(spa, FTAG); | |
2059 | return (error); | |
2060 | } | |
2061 | ||
2062 | static int | |
2063 | zfs_ioc_vdev_detach(zfs_cmd_t *zc) | |
2064 | { | |
2065 | spa_t *spa; | |
2066 | int error; | |
2067 | ||
2068 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
2069 | return (error); | |
2070 | ||
fb5f0bc8 | 2071 | error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE); |
34dc7c2f BB |
2072 | |
2073 | spa_close(spa, FTAG); | |
2074 | return (error); | |
2075 | } | |
2076 | ||
428870ff BB |
2077 | static int |
2078 | zfs_ioc_vdev_split(zfs_cmd_t *zc) | |
2079 | { | |
2080 | spa_t *spa; | |
2081 | nvlist_t *config, *props = NULL; | |
2082 | int error; | |
2083 | boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT); | |
2084 | ||
2085 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
2086 | return (error); | |
2087 | ||
c65aa5b2 BB |
2088 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, |
2089 | zc->zc_iflags, &config))) { | |
428870ff BB |
2090 | spa_close(spa, FTAG); |
2091 | return (error); | |
2092 | } | |
2093 | ||
2094 | if (zc->zc_nvlist_src_size != 0 && (error = | |
2095 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
2096 | zc->zc_iflags, &props))) { | |
2097 | spa_close(spa, FTAG); | |
2098 | nvlist_free(config); | |
2099 | return (error); | |
2100 | } | |
2101 | ||
2102 | error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp); | |
2103 | ||
2104 | spa_close(spa, FTAG); | |
2105 | ||
2106 | nvlist_free(config); | |
2107 | nvlist_free(props); | |
2108 | ||
2109 | return (error); | |
2110 | } | |
2111 | ||
34dc7c2f BB |
2112 | static int |
2113 | zfs_ioc_vdev_setpath(zfs_cmd_t *zc) | |
2114 | { | |
2115 | spa_t *spa; | |
2116 | char *path = zc->zc_value; | |
2117 | uint64_t guid = zc->zc_guid; | |
2118 | int error; | |
2119 | ||
2120 | error = spa_open(zc->zc_name, &spa, FTAG); | |
2121 | if (error != 0) | |
2122 | return (error); | |
2123 | ||
2124 | error = spa_vdev_setpath(spa, guid, path); | |
2125 | spa_close(spa, FTAG); | |
2126 | return (error); | |
2127 | } | |
2128 | ||
9babb374 BB |
2129 | static int |
2130 | zfs_ioc_vdev_setfru(zfs_cmd_t *zc) | |
2131 | { | |
2132 | spa_t *spa; | |
2133 | char *fru = zc->zc_value; | |
2134 | uint64_t guid = zc->zc_guid; | |
2135 | int error; | |
2136 | ||
2137 | error = spa_open(zc->zc_name, &spa, FTAG); | |
2138 | if (error != 0) | |
2139 | return (error); | |
2140 | ||
2141 | error = spa_vdev_setfru(spa, guid, fru); | |
2142 | spa_close(spa, FTAG); | |
2143 | return (error); | |
2144 | } | |
2145 | ||
34dc7c2f | 2146 | static int |
572e2857 | 2147 | zfs_ioc_objset_stats_impl(zfs_cmd_t *zc, objset_t *os) |
34dc7c2f | 2148 | { |
572e2857 | 2149 | int error = 0; |
34dc7c2f BB |
2150 | nvlist_t *nv; |
2151 | ||
34dc7c2f BB |
2152 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); |
2153 | ||
2154 | if (zc->zc_nvlist_dst != 0 && | |
428870ff | 2155 | (error = dsl_prop_get_all(os, &nv)) == 0) { |
34dc7c2f BB |
2156 | dmu_objset_stats(os, nv); |
2157 | /* | |
2158 | * NB: zvol_get_stats() will read the objset contents, | |
2159 | * which we aren't supposed to do with a | |
b128c09f | 2160 | * DS_MODE_USER hold, because it could be |
34dc7c2f | 2161 | * inconsistent. So this is a bit of a workaround... |
428870ff | 2162 | * XXX reading with out owning |
34dc7c2f | 2163 | */ |
330d06f9 MA |
2164 | if (!zc->zc_objset_stats.dds_inconsistent && |
2165 | dmu_objset_type(os) == DMU_OST_ZVOL) { | |
2166 | error = zvol_get_stats(os, nv); | |
6d421005 B |
2167 | if (error == EIO) { |
2168 | nvlist_free(nv); | |
330d06f9 | 2169 | return (error); |
6d421005 | 2170 | } |
c99c9001 | 2171 | VERIFY0(error); |
34dc7c2f | 2172 | } |
8a8f5c6b BB |
2173 | if (error == 0) |
2174 | error = put_nvlist(zc, nv); | |
34dc7c2f BB |
2175 | nvlist_free(nv); |
2176 | } | |
2177 | ||
572e2857 BB |
2178 | return (error); |
2179 | } | |
2180 | ||
2181 | /* | |
2182 | * inputs: | |
2183 | * zc_name name of filesystem | |
2184 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2185 | * | |
2186 | * outputs: | |
2187 | * zc_objset_stats stats | |
2188 | * zc_nvlist_dst property nvlist | |
2189 | * zc_nvlist_dst_size size of property nvlist | |
2190 | */ | |
2191 | static int | |
2192 | zfs_ioc_objset_stats(zfs_cmd_t *zc) | |
2193 | { | |
13fe0198 | 2194 | objset_t *os; |
572e2857 BB |
2195 | int error; |
2196 | ||
13fe0198 MA |
2197 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); |
2198 | if (error == 0) { | |
2199 | error = zfs_ioc_objset_stats_impl(zc, os); | |
2200 | dmu_objset_rele(os, FTAG); | |
2201 | } | |
572e2857 | 2202 | |
428870ff BB |
2203 | return (error); |
2204 | } | |
2205 | ||
2206 | /* | |
2207 | * inputs: | |
2208 | * zc_name name of filesystem | |
2209 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2210 | * | |
2211 | * outputs: | |
2212 | * zc_nvlist_dst received property nvlist | |
2213 | * zc_nvlist_dst_size size of received property nvlist | |
2214 | * | |
2215 | * Gets received properties (distinct from local properties on or after | |
2216 | * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from | |
2217 | * local property values. | |
2218 | */ | |
2219 | static int | |
26685276 | 2220 | zfs_ioc_objset_recvd_props(zfs_cmd_t *zc) |
428870ff | 2221 | { |
13fe0198 | 2222 | int error = 0; |
428870ff BB |
2223 | nvlist_t *nv; |
2224 | ||
428870ff BB |
2225 | /* |
2226 | * Without this check, we would return local property values if the | |
2227 | * caller has not already received properties on or after | |
2228 | * SPA_VERSION_RECVD_PROPS. | |
2229 | */ | |
13fe0198 | 2230 | if (!dsl_prop_get_hasrecvd(zc->zc_name)) |
2e528b49 | 2231 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
2232 | |
2233 | if (zc->zc_nvlist_dst != 0 && | |
13fe0198 | 2234 | (error = dsl_prop_get_received(zc->zc_name, &nv)) == 0) { |
428870ff BB |
2235 | error = put_nvlist(zc, nv); |
2236 | nvlist_free(nv); | |
2237 | } | |
2238 | ||
34dc7c2f BB |
2239 | return (error); |
2240 | } | |
2241 | ||
2242 | static int | |
2243 | nvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop) | |
2244 | { | |
2245 | uint64_t value; | |
2246 | int error; | |
2247 | ||
2248 | /* | |
2249 | * zfs_get_zplprop() will either find a value or give us | |
2250 | * the default value (if there is one). | |
2251 | */ | |
2252 | if ((error = zfs_get_zplprop(os, prop, &value)) != 0) | |
2253 | return (error); | |
2254 | VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0); | |
2255 | return (0); | |
2256 | } | |
2257 | ||
2258 | /* | |
2259 | * inputs: | |
2260 | * zc_name name of filesystem | |
2261 | * zc_nvlist_dst_size size of buffer for zpl property nvlist | |
2262 | * | |
2263 | * outputs: | |
2264 | * zc_nvlist_dst zpl property nvlist | |
2265 | * zc_nvlist_dst_size size of zpl property nvlist | |
2266 | */ | |
2267 | static int | |
2268 | zfs_ioc_objset_zplprops(zfs_cmd_t *zc) | |
2269 | { | |
2270 | objset_t *os; | |
2271 | int err; | |
2272 | ||
428870ff | 2273 | /* XXX reading without owning */ |
c65aa5b2 | 2274 | if ((err = dmu_objset_hold(zc->zc_name, FTAG, &os))) |
34dc7c2f BB |
2275 | return (err); |
2276 | ||
2277 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); | |
2278 | ||
2279 | /* | |
2280 | * NB: nvl_add_zplprop() will read the objset contents, | |
b128c09f BB |
2281 | * which we aren't supposed to do with a DS_MODE_USER |
2282 | * hold, because it could be inconsistent. | |
34dc7c2f | 2283 | */ |
b8864a23 | 2284 | if (zc->zc_nvlist_dst != 0 && |
34dc7c2f BB |
2285 | !zc->zc_objset_stats.dds_inconsistent && |
2286 | dmu_objset_type(os) == DMU_OST_ZFS) { | |
2287 | nvlist_t *nv; | |
2288 | ||
2289 | VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2290 | if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 && | |
2291 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 && | |
2292 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 && | |
2293 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0) | |
2294 | err = put_nvlist(zc, nv); | |
2295 | nvlist_free(nv); | |
2296 | } else { | |
2e528b49 | 2297 | err = SET_ERROR(ENOENT); |
34dc7c2f | 2298 | } |
428870ff | 2299 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
2300 | return (err); |
2301 | } | |
2302 | ||
2303 | /* | |
2304 | * inputs: | |
2305 | * zc_name name of filesystem | |
2306 | * zc_cookie zap cursor | |
2307 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2308 | * | |
2309 | * outputs: | |
2310 | * zc_name name of next filesystem | |
9babb374 | 2311 | * zc_cookie zap cursor |
34dc7c2f BB |
2312 | * zc_objset_stats stats |
2313 | * zc_nvlist_dst property nvlist | |
2314 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
2315 | */ |
2316 | static int | |
2317 | zfs_ioc_dataset_list_next(zfs_cmd_t *zc) | |
2318 | { | |
2319 | objset_t *os; | |
2320 | int error; | |
2321 | char *p; | |
428870ff | 2322 | size_t orig_len = strlen(zc->zc_name); |
34dc7c2f | 2323 | |
428870ff | 2324 | top: |
c65aa5b2 | 2325 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os))) { |
34dc7c2f | 2326 | if (error == ENOENT) |
2e528b49 | 2327 | error = SET_ERROR(ESRCH); |
34dc7c2f BB |
2328 | return (error); |
2329 | } | |
2330 | ||
2331 | p = strrchr(zc->zc_name, '/'); | |
2332 | if (p == NULL || p[1] != '\0') | |
2333 | (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name)); | |
2334 | p = zc->zc_name + strlen(zc->zc_name); | |
2335 | ||
2336 | do { | |
2337 | error = dmu_dir_list_next(os, | |
2338 | sizeof (zc->zc_name) - (p - zc->zc_name), p, | |
2339 | NULL, &zc->zc_cookie); | |
2340 | if (error == ENOENT) | |
2e528b49 | 2341 | error = SET_ERROR(ESRCH); |
2e5dc449 | 2342 | } while (error == 0 && zfs_dataset_name_hidden(zc->zc_name)); |
428870ff | 2343 | dmu_objset_rele(os, FTAG); |
34dc7c2f | 2344 | |
428870ff BB |
2345 | /* |
2346 | * If it's an internal dataset (ie. with a '$' in its name), | |
2347 | * don't try to get stats for it, otherwise we'll return ENOENT. | |
2348 | */ | |
2349 | if (error == 0 && strchr(zc->zc_name, '$') == NULL) { | |
34dc7c2f | 2350 | error = zfs_ioc_objset_stats(zc); /* fill in the stats */ |
428870ff BB |
2351 | if (error == ENOENT) { |
2352 | /* We lost a race with destroy, get the next one. */ | |
2353 | zc->zc_name[orig_len] = '\0'; | |
2354 | goto top; | |
2355 | } | |
2356 | } | |
34dc7c2f BB |
2357 | return (error); |
2358 | } | |
2359 | ||
2360 | /* | |
2361 | * inputs: | |
2362 | * zc_name name of filesystem | |
2363 | * zc_cookie zap cursor | |
2364 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2365 | * | |
2366 | * outputs: | |
2367 | * zc_name name of next snapshot | |
2368 | * zc_objset_stats stats | |
2369 | * zc_nvlist_dst property nvlist | |
2370 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
2371 | */ |
2372 | static int | |
2373 | zfs_ioc_snapshot_list_next(zfs_cmd_t *zc) | |
2374 | { | |
2375 | objset_t *os; | |
2376 | int error; | |
2377 | ||
428870ff | 2378 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); |
13fe0198 | 2379 | if (error != 0) { |
b128c09f | 2380 | return (error == ENOENT ? ESRCH : error); |
13fe0198 | 2381 | } |
34dc7c2f BB |
2382 | |
2383 | /* | |
2384 | * A dataset name of maximum length cannot have any snapshots, | |
2385 | * so exit immediately. | |
2386 | */ | |
eca7b760 IK |
2387 | if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= |
2388 | ZFS_MAX_DATASET_NAME_LEN) { | |
428870ff | 2389 | dmu_objset_rele(os, FTAG); |
2e528b49 | 2390 | return (SET_ERROR(ESRCH)); |
34dc7c2f BB |
2391 | } |
2392 | ||
2393 | error = dmu_snapshot_list_next(os, | |
2394 | sizeof (zc->zc_name) - strlen(zc->zc_name), | |
572e2857 BB |
2395 | zc->zc_name + strlen(zc->zc_name), &zc->zc_obj, &zc->zc_cookie, |
2396 | NULL); | |
2397 | ||
0cee2406 | 2398 | if (error == 0 && !zc->zc_simple) { |
572e2857 BB |
2399 | dsl_dataset_t *ds; |
2400 | dsl_pool_t *dp = os->os_dsl_dataset->ds_dir->dd_pool; | |
2401 | ||
572e2857 | 2402 | error = dsl_dataset_hold_obj(dp, zc->zc_obj, FTAG, &ds); |
13fe0198 | 2403 | if (error == 0) { |
572e2857 BB |
2404 | objset_t *ossnap; |
2405 | ||
2406 | error = dmu_objset_from_ds(ds, &ossnap); | |
2407 | if (error == 0) | |
2408 | error = zfs_ioc_objset_stats_impl(zc, ossnap); | |
2409 | dsl_dataset_rele(ds, FTAG); | |
428870ff BB |
2410 | } |
2411 | } else if (error == ENOENT) { | |
2e528b49 | 2412 | error = SET_ERROR(ESRCH); |
428870ff | 2413 | } |
34dc7c2f | 2414 | |
572e2857 | 2415 | dmu_objset_rele(os, FTAG); |
34dc7c2f | 2416 | /* if we failed, undo the @ that we tacked on to zc_name */ |
13fe0198 | 2417 | if (error != 0) |
34dc7c2f | 2418 | *strchr(zc->zc_name, '@') = '\0'; |
34dc7c2f BB |
2419 | return (error); |
2420 | } | |
2421 | ||
428870ff BB |
2422 | static int |
2423 | zfs_prop_set_userquota(const char *dsname, nvpair_t *pair) | |
34dc7c2f | 2424 | { |
428870ff BB |
2425 | const char *propname = nvpair_name(pair); |
2426 | uint64_t *valary; | |
2427 | unsigned int vallen; | |
2428 | const char *domain; | |
2429 | char *dash; | |
2430 | zfs_userquota_prop_t type; | |
2431 | uint64_t rid; | |
2432 | uint64_t quota; | |
0037b49e | 2433 | zfsvfs_t *zfsvfs; |
428870ff BB |
2434 | int err; |
2435 | ||
2436 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2437 | nvlist_t *attrs; | |
2438 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2439 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2440 | &pair) != 0) | |
2e528b49 | 2441 | return (SET_ERROR(EINVAL)); |
428870ff | 2442 | } |
34dc7c2f BB |
2443 | |
2444 | /* | |
428870ff BB |
2445 | * A correctly constructed propname is encoded as |
2446 | * userquota@<rid>-<domain>. | |
34dc7c2f | 2447 | */ |
428870ff BB |
2448 | if ((dash = strchr(propname, '-')) == NULL || |
2449 | nvpair_value_uint64_array(pair, &valary, &vallen) != 0 || | |
2450 | vallen != 3) | |
2e528b49 | 2451 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 2452 | |
428870ff BB |
2453 | domain = dash + 1; |
2454 | type = valary[0]; | |
2455 | rid = valary[1]; | |
2456 | quota = valary[2]; | |
34dc7c2f | 2457 | |
f298b24d | 2458 | err = zfsvfs_hold(dsname, FTAG, &zfsvfs, B_FALSE); |
428870ff | 2459 | if (err == 0) { |
0037b49e | 2460 | err = zfs_set_userquota(zfsvfs, type, domain, rid, quota); |
f298b24d | 2461 | zfsvfs_rele(zfsvfs, FTAG); |
428870ff | 2462 | } |
9babb374 | 2463 | |
428870ff BB |
2464 | return (err); |
2465 | } | |
34dc7c2f | 2466 | |
428870ff BB |
2467 | /* |
2468 | * If the named property is one that has a special function to set its value, | |
2469 | * return 0 on success and a positive error code on failure; otherwise if it is | |
2470 | * not one of the special properties handled by this function, return -1. | |
2471 | * | |
2472 | * XXX: It would be better for callers of the property interface if we handled | |
2473 | * these special cases in dsl_prop.c (in the dsl layer). | |
2474 | */ | |
2475 | static int | |
2476 | zfs_prop_set_special(const char *dsname, zprop_source_t source, | |
2477 | nvpair_t *pair) | |
2478 | { | |
2479 | const char *propname = nvpair_name(pair); | |
2480 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
b5256303 TC |
2481 | uint64_t intval = 0; |
2482 | char *strval = NULL; | |
f1512ee6 | 2483 | int err = -1; |
9babb374 | 2484 | |
428870ff BB |
2485 | if (prop == ZPROP_INVAL) { |
2486 | if (zfs_prop_userquota(propname)) | |
2487 | return (zfs_prop_set_userquota(dsname, pair)); | |
2488 | return (-1); | |
2489 | } | |
34dc7c2f | 2490 | |
428870ff BB |
2491 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { |
2492 | nvlist_t *attrs; | |
2493 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2494 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2495 | &pair) == 0); | |
2496 | } | |
b128c09f | 2497 | |
b5256303 TC |
2498 | /* all special properties are numeric except for keylocation */ |
2499 | if (zfs_prop_get_type(prop) == PROP_TYPE_STRING) { | |
2500 | strval = fnvpair_value_string(pair); | |
2501 | } else { | |
2502 | intval = fnvpair_value_uint64(pair); | |
2503 | } | |
34dc7c2f | 2504 | |
428870ff BB |
2505 | switch (prop) { |
2506 | case ZFS_PROP_QUOTA: | |
2507 | err = dsl_dir_set_quota(dsname, source, intval); | |
2508 | break; | |
2509 | case ZFS_PROP_REFQUOTA: | |
13fe0198 | 2510 | err = dsl_dataset_set_refquota(dsname, source, intval); |
428870ff | 2511 | break; |
788eb90c JJ |
2512 | case ZFS_PROP_FILESYSTEM_LIMIT: |
2513 | case ZFS_PROP_SNAPSHOT_LIMIT: | |
2514 | if (intval == UINT64_MAX) { | |
2515 | /* clearing the limit, just do it */ | |
2516 | err = 0; | |
2517 | } else { | |
2518 | err = dsl_dir_activate_fs_ss_limit(dsname); | |
2519 | } | |
b5256303 TC |
2520 | /* |
2521 | * Set err to -1 to force the zfs_set_prop_nvlist code down the | |
2522 | * default path to set the value in the nvlist. | |
2523 | */ | |
2524 | if (err == 0) | |
2525 | err = -1; | |
2526 | break; | |
2527 | case ZFS_PROP_KEYLOCATION: | |
2528 | err = dsl_crypto_can_set_keylocation(dsname, strval); | |
2529 | ||
788eb90c JJ |
2530 | /* |
2531 | * Set err to -1 to force the zfs_set_prop_nvlist code down the | |
2532 | * default path to set the value in the nvlist. | |
2533 | */ | |
2534 | if (err == 0) | |
2535 | err = -1; | |
2536 | break; | |
428870ff BB |
2537 | case ZFS_PROP_RESERVATION: |
2538 | err = dsl_dir_set_reservation(dsname, source, intval); | |
2539 | break; | |
2540 | case ZFS_PROP_REFRESERVATION: | |
13fe0198 | 2541 | err = dsl_dataset_set_refreservation(dsname, source, intval); |
428870ff BB |
2542 | break; |
2543 | case ZFS_PROP_VOLSIZE: | |
60101509 | 2544 | err = zvol_set_volsize(dsname, intval); |
428870ff | 2545 | break; |
0b4d1b58 | 2546 | case ZFS_PROP_SNAPDEV: |
a0bd735a | 2547 | err = zvol_set_snapdev(dsname, source, intval); |
0b4d1b58 | 2548 | break; |
cf8738d8 | 2549 | case ZFS_PROP_VOLMODE: |
2550 | err = zvol_set_volmode(dsname, source, intval); | |
2551 | break; | |
428870ff BB |
2552 | case ZFS_PROP_VERSION: |
2553 | { | |
0037b49e | 2554 | zfsvfs_t *zfsvfs; |
428870ff | 2555 | |
f298b24d | 2556 | if ((err = zfsvfs_hold(dsname, FTAG, &zfsvfs, B_TRUE)) != 0) |
34dc7c2f | 2557 | break; |
b128c09f | 2558 | |
0037b49e | 2559 | err = zfs_set_version(zfsvfs, intval); |
f298b24d | 2560 | zfsvfs_rele(zfsvfs, FTAG); |
34dc7c2f | 2561 | |
428870ff BB |
2562 | if (err == 0 && intval >= ZPL_VERSION_USERSPACE) { |
2563 | zfs_cmd_t *zc; | |
34dc7c2f | 2564 | |
efcd79a8 | 2565 | zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); |
428870ff BB |
2566 | (void) strcpy(zc->zc_name, dsname); |
2567 | (void) zfs_ioc_userspace_upgrade(zc); | |
9c5167d1 | 2568 | (void) zfs_ioc_id_quota_upgrade(zc); |
428870ff | 2569 | kmem_free(zc, sizeof (zfs_cmd_t)); |
34dc7c2f | 2570 | } |
428870ff BB |
2571 | break; |
2572 | } | |
428870ff BB |
2573 | default: |
2574 | err = -1; | |
2575 | } | |
34dc7c2f | 2576 | |
428870ff BB |
2577 | return (err); |
2578 | } | |
34dc7c2f | 2579 | |
428870ff BB |
2580 | /* |
2581 | * This function is best effort. If it fails to set any of the given properties, | |
6f1ffb06 MA |
2582 | * it continues to set as many as it can and returns the last error |
2583 | * encountered. If the caller provides a non-NULL errlist, it will be filled in | |
2584 | * with the list of names of all the properties that failed along with the | |
2585 | * corresponding error numbers. | |
428870ff | 2586 | * |
6f1ffb06 MA |
2587 | * If every property is set successfully, zero is returned and errlist is not |
2588 | * modified. | |
428870ff BB |
2589 | */ |
2590 | int | |
2591 | zfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl, | |
6f1ffb06 | 2592 | nvlist_t *errlist) |
428870ff BB |
2593 | { |
2594 | nvpair_t *pair; | |
2595 | nvpair_t *propval; | |
2596 | int rv = 0; | |
2597 | uint64_t intval; | |
2598 | char *strval; | |
34dc7c2f | 2599 | |
6f1ffb06 MA |
2600 | nvlist_t *genericnvl = fnvlist_alloc(); |
2601 | nvlist_t *retrynvl = fnvlist_alloc(); | |
428870ff BB |
2602 | retry: |
2603 | pair = NULL; | |
2604 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { | |
2605 | const char *propname = nvpair_name(pair); | |
2606 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2607 | int err = 0; | |
2608 | ||
2609 | /* decode the property value */ | |
2610 | propval = pair; | |
2611 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2612 | nvlist_t *attrs; | |
6f1ffb06 | 2613 | attrs = fnvpair_value_nvlist(pair); |
428870ff BB |
2614 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, |
2615 | &propval) != 0) | |
2e528b49 | 2616 | err = SET_ERROR(EINVAL); |
9babb374 | 2617 | } |
34dc7c2f | 2618 | |
428870ff | 2619 | /* Validate value type */ |
a3eeab2d | 2620 | if (err == 0 && source == ZPROP_SRC_INHERITED) { |
2621 | /* inherited properties are expected to be booleans */ | |
2622 | if (nvpair_type(propval) != DATA_TYPE_BOOLEAN) | |
2623 | err = SET_ERROR(EINVAL); | |
2624 | } else if (err == 0 && prop == ZPROP_INVAL) { | |
428870ff BB |
2625 | if (zfs_prop_user(propname)) { |
2626 | if (nvpair_type(propval) != DATA_TYPE_STRING) | |
2e528b49 | 2627 | err = SET_ERROR(EINVAL); |
428870ff BB |
2628 | } else if (zfs_prop_userquota(propname)) { |
2629 | if (nvpair_type(propval) != | |
2630 | DATA_TYPE_UINT64_ARRAY) | |
2e528b49 | 2631 | err = SET_ERROR(EINVAL); |
330d06f9 | 2632 | } else { |
2e528b49 | 2633 | err = SET_ERROR(EINVAL); |
428870ff BB |
2634 | } |
2635 | } else if (err == 0) { | |
2636 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
2637 | if (zfs_prop_get_type(prop) != PROP_TYPE_STRING) | |
2e528b49 | 2638 | err = SET_ERROR(EINVAL); |
428870ff | 2639 | } else if (nvpair_type(propval) == DATA_TYPE_UINT64) { |
34dc7c2f BB |
2640 | const char *unused; |
2641 | ||
6f1ffb06 | 2642 | intval = fnvpair_value_uint64(propval); |
34dc7c2f BB |
2643 | |
2644 | switch (zfs_prop_get_type(prop)) { | |
2645 | case PROP_TYPE_NUMBER: | |
2646 | break; | |
2647 | case PROP_TYPE_STRING: | |
2e528b49 | 2648 | err = SET_ERROR(EINVAL); |
428870ff | 2649 | break; |
34dc7c2f BB |
2650 | case PROP_TYPE_INDEX: |
2651 | if (zfs_prop_index_to_string(prop, | |
428870ff | 2652 | intval, &unused) != 0) |
2e528b49 | 2653 | err = SET_ERROR(EINVAL); |
34dc7c2f BB |
2654 | break; |
2655 | default: | |
2656 | cmn_err(CE_PANIC, | |
2657 | "unknown property type"); | |
34dc7c2f | 2658 | } |
34dc7c2f | 2659 | } else { |
2e528b49 | 2660 | err = SET_ERROR(EINVAL); |
34dc7c2f | 2661 | } |
34dc7c2f | 2662 | } |
428870ff BB |
2663 | |
2664 | /* Validate permissions */ | |
2665 | if (err == 0) | |
2666 | err = zfs_check_settable(dsname, pair, CRED()); | |
2667 | ||
2668 | if (err == 0) { | |
a3eeab2d | 2669 | if (source == ZPROP_SRC_INHERITED) |
2670 | err = -1; /* does not need special handling */ | |
2671 | else | |
2672 | err = zfs_prop_set_special(dsname, source, | |
2673 | pair); | |
428870ff BB |
2674 | if (err == -1) { |
2675 | /* | |
2676 | * For better performance we build up a list of | |
2677 | * properties to set in a single transaction. | |
2678 | */ | |
2679 | err = nvlist_add_nvpair(genericnvl, pair); | |
2680 | } else if (err != 0 && nvl != retrynvl) { | |
2681 | /* | |
2682 | * This may be a spurious error caused by | |
2683 | * receiving quota and reservation out of order. | |
2684 | * Try again in a second pass. | |
2685 | */ | |
2686 | err = nvlist_add_nvpair(retrynvl, pair); | |
2687 | } | |
2688 | } | |
2689 | ||
6f1ffb06 MA |
2690 | if (err != 0) { |
2691 | if (errlist != NULL) | |
2692 | fnvlist_add_int32(errlist, propname, err); | |
2693 | rv = err; | |
2694 | } | |
34dc7c2f BB |
2695 | } |
2696 | ||
428870ff BB |
2697 | if (nvl != retrynvl && !nvlist_empty(retrynvl)) { |
2698 | nvl = retrynvl; | |
2699 | goto retry; | |
2700 | } | |
2701 | ||
2702 | if (!nvlist_empty(genericnvl) && | |
2703 | dsl_props_set(dsname, source, genericnvl) != 0) { | |
2704 | /* | |
2705 | * If this fails, we still want to set as many properties as we | |
2706 | * can, so try setting them individually. | |
2707 | */ | |
2708 | pair = NULL; | |
2709 | while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) { | |
2710 | const char *propname = nvpair_name(pair); | |
2711 | int err = 0; | |
2712 | ||
2713 | propval = pair; | |
2714 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2715 | nvlist_t *attrs; | |
6f1ffb06 MA |
2716 | attrs = fnvpair_value_nvlist(pair); |
2717 | propval = fnvlist_lookup_nvpair(attrs, | |
2718 | ZPROP_VALUE); | |
428870ff BB |
2719 | } |
2720 | ||
2721 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
6f1ffb06 | 2722 | strval = fnvpair_value_string(propval); |
13fe0198 MA |
2723 | err = dsl_prop_set_string(dsname, propname, |
2724 | source, strval); | |
a3eeab2d | 2725 | } else if (nvpair_type(propval) == DATA_TYPE_BOOLEAN) { |
2726 | err = dsl_prop_inherit(dsname, propname, | |
2727 | source); | |
428870ff | 2728 | } else { |
6f1ffb06 | 2729 | intval = fnvpair_value_uint64(propval); |
13fe0198 MA |
2730 | err = dsl_prop_set_int(dsname, propname, source, |
2731 | intval); | |
428870ff BB |
2732 | } |
2733 | ||
2734 | if (err != 0) { | |
6f1ffb06 MA |
2735 | if (errlist != NULL) { |
2736 | fnvlist_add_int32(errlist, propname, | |
2737 | err); | |
2738 | } | |
2739 | rv = err; | |
428870ff BB |
2740 | } |
2741 | } | |
9babb374 | 2742 | } |
9babb374 | 2743 | nvlist_free(genericnvl); |
428870ff BB |
2744 | nvlist_free(retrynvl); |
2745 | ||
428870ff | 2746 | return (rv); |
9babb374 BB |
2747 | } |
2748 | ||
2749 | /* | |
2750 | * Check that all the properties are valid user properties. | |
2751 | */ | |
2752 | static int | |
6f1ffb06 | 2753 | zfs_check_userprops(const char *fsname, nvlist_t *nvl) |
9babb374 | 2754 | { |
428870ff | 2755 | nvpair_t *pair = NULL; |
9babb374 BB |
2756 | int error = 0; |
2757 | ||
428870ff BB |
2758 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { |
2759 | const char *propname = nvpair_name(pair); | |
9babb374 BB |
2760 | |
2761 | if (!zfs_prop_user(propname) || | |
428870ff | 2762 | nvpair_type(pair) != DATA_TYPE_STRING) |
2e528b49 | 2763 | return (SET_ERROR(EINVAL)); |
9babb374 | 2764 | |
c65aa5b2 BB |
2765 | if ((error = zfs_secpolicy_write_perms(fsname, |
2766 | ZFS_DELEG_PERM_USERPROP, CRED()))) | |
9babb374 BB |
2767 | return (error); |
2768 | ||
2769 | if (strlen(propname) >= ZAP_MAXNAMELEN) | |
2e528b49 | 2770 | return (SET_ERROR(ENAMETOOLONG)); |
9babb374 | 2771 | |
da536844 | 2772 | if (strlen(fnvpair_value_string(pair)) >= ZAP_MAXVALUELEN) |
2e528b49 | 2773 | return (SET_ERROR(E2BIG)); |
9babb374 | 2774 | } |
34dc7c2f BB |
2775 | return (0); |
2776 | } | |
2777 | ||
428870ff BB |
2778 | static void |
2779 | props_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops) | |
2780 | { | |
2781 | nvpair_t *pair; | |
2782 | ||
2783 | VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2784 | ||
2785 | pair = NULL; | |
2786 | while ((pair = nvlist_next_nvpair(props, pair)) != NULL) { | |
2787 | if (nvlist_exists(skipped, nvpair_name(pair))) | |
2788 | continue; | |
2789 | ||
2790 | VERIFY(nvlist_add_nvpair(*newprops, pair) == 0); | |
2791 | } | |
2792 | } | |
2793 | ||
2794 | static int | |
13fe0198 | 2795 | clear_received_props(const char *dsname, nvlist_t *props, |
428870ff BB |
2796 | nvlist_t *skipped) |
2797 | { | |
2798 | int err = 0; | |
2799 | nvlist_t *cleared_props = NULL; | |
2800 | props_skip(props, skipped, &cleared_props); | |
2801 | if (!nvlist_empty(cleared_props)) { | |
2802 | /* | |
2803 | * Acts on local properties until the dataset has received | |
2804 | * properties at least once on or after SPA_VERSION_RECVD_PROPS. | |
2805 | */ | |
2806 | zprop_source_t flags = (ZPROP_SRC_NONE | | |
13fe0198 MA |
2807 | (dsl_prop_get_hasrecvd(dsname) ? ZPROP_SRC_RECEIVED : 0)); |
2808 | err = zfs_set_prop_nvlist(dsname, flags, cleared_props, NULL); | |
428870ff BB |
2809 | } |
2810 | nvlist_free(cleared_props); | |
2811 | return (err); | |
2812 | } | |
2813 | ||
34dc7c2f BB |
2814 | /* |
2815 | * inputs: | |
2816 | * zc_name name of filesystem | |
9babb374 | 2817 | * zc_value name of property to set |
34dc7c2f | 2818 | * zc_nvlist_src{_size} nvlist of properties to apply |
428870ff | 2819 | * zc_cookie received properties flag |
34dc7c2f | 2820 | * |
428870ff BB |
2821 | * outputs: |
2822 | * zc_nvlist_dst{_size} error for each unapplied received property | |
34dc7c2f BB |
2823 | */ |
2824 | static int | |
2825 | zfs_ioc_set_prop(zfs_cmd_t *zc) | |
2826 | { | |
2827 | nvlist_t *nvl; | |
428870ff BB |
2828 | boolean_t received = zc->zc_cookie; |
2829 | zprop_source_t source = (received ? ZPROP_SRC_RECEIVED : | |
2830 | ZPROP_SRC_LOCAL); | |
6f1ffb06 | 2831 | nvlist_t *errors; |
34dc7c2f BB |
2832 | int error; |
2833 | ||
2834 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2835 | zc->zc_iflags, &nvl)) != 0) |
34dc7c2f BB |
2836 | return (error); |
2837 | ||
428870ff | 2838 | if (received) { |
b128c09f | 2839 | nvlist_t *origprops; |
b128c09f | 2840 | |
13fe0198 MA |
2841 | if (dsl_prop_get_received(zc->zc_name, &origprops) == 0) { |
2842 | (void) clear_received_props(zc->zc_name, | |
2843 | origprops, nvl); | |
2844 | nvlist_free(origprops); | |
428870ff | 2845 | } |
13fe0198 MA |
2846 | |
2847 | error = dsl_prop_set_hasrecvd(zc->zc_name); | |
b128c09f BB |
2848 | } |
2849 | ||
6f1ffb06 | 2850 | errors = fnvlist_alloc(); |
13fe0198 MA |
2851 | if (error == 0) |
2852 | error = zfs_set_prop_nvlist(zc->zc_name, source, nvl, errors); | |
34dc7c2f | 2853 | |
b8864a23 | 2854 | if (zc->zc_nvlist_dst != 0 && errors != NULL) { |
428870ff BB |
2855 | (void) put_nvlist(zc, errors); |
2856 | } | |
2857 | ||
2858 | nvlist_free(errors); | |
34dc7c2f BB |
2859 | nvlist_free(nvl); |
2860 | return (error); | |
2861 | } | |
2862 | ||
2863 | /* | |
2864 | * inputs: | |
2865 | * zc_name name of filesystem | |
2866 | * zc_value name of property to inherit | |
428870ff | 2867 | * zc_cookie revert to received value if TRUE |
34dc7c2f BB |
2868 | * |
2869 | * outputs: none | |
2870 | */ | |
2871 | static int | |
2872 | zfs_ioc_inherit_prop(zfs_cmd_t *zc) | |
2873 | { | |
428870ff BB |
2874 | const char *propname = zc->zc_value; |
2875 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2876 | boolean_t received = zc->zc_cookie; | |
2877 | zprop_source_t source = (received | |
2878 | ? ZPROP_SRC_NONE /* revert to received value, if any */ | |
2879 | : ZPROP_SRC_INHERITED); /* explicitly inherit */ | |
92aceb2a | 2880 | nvlist_t *dummy; |
2881 | nvpair_t *pair; | |
2882 | zprop_type_t type; | |
2883 | int err; | |
428870ff | 2884 | |
92aceb2a | 2885 | if (!received) { |
261c013f BB |
2886 | /* |
2887 | * Only check this in the non-received case. We want to allow | |
2888 | * 'inherit -S' to revert non-inheritable properties like quota | |
2889 | * and reservation to the received or default values even though | |
2890 | * they are not considered inheritable. | |
2891 | */ | |
2892 | if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop)) | |
2893 | return (SET_ERROR(EINVAL)); | |
959f56b9 | 2894 | } |
2895 | ||
92aceb2a | 2896 | if (prop == ZPROP_INVAL) { |
2897 | if (!zfs_prop_user(propname)) | |
2898 | return (SET_ERROR(EINVAL)); | |
2899 | ||
2900 | type = PROP_TYPE_STRING; | |
2901 | } else if (prop == ZFS_PROP_VOLSIZE || prop == ZFS_PROP_VERSION) { | |
2902 | return (SET_ERROR(EINVAL)); | |
2903 | } else { | |
2904 | type = zfs_prop_get_type(prop); | |
2905 | } | |
2906 | ||
2907 | /* | |
2908 | * zfs_prop_set_special() expects properties in the form of an | |
2909 | * nvpair with type info. | |
2910 | */ | |
2911 | dummy = fnvlist_alloc(); | |
2912 | ||
2913 | switch (type) { | |
2914 | case PROP_TYPE_STRING: | |
2915 | VERIFY(0 == nvlist_add_string(dummy, propname, "")); | |
2916 | break; | |
2917 | case PROP_TYPE_NUMBER: | |
2918 | case PROP_TYPE_INDEX: | |
2919 | VERIFY(0 == nvlist_add_uint64(dummy, propname, 0)); | |
2920 | break; | |
2921 | default: | |
2922 | err = SET_ERROR(EINVAL); | |
2923 | goto errout; | |
2924 | } | |
2925 | ||
2926 | pair = nvlist_next_nvpair(dummy, NULL); | |
2927 | if (pair == NULL) { | |
2928 | err = SET_ERROR(EINVAL); | |
2929 | } else { | |
2930 | err = zfs_prop_set_special(zc->zc_name, source, pair); | |
2931 | if (err == -1) /* property is not "special", needs handling */ | |
2932 | err = dsl_prop_inherit(zc->zc_name, zc->zc_value, | |
2933 | source); | |
2934 | } | |
2935 | ||
2936 | errout: | |
2937 | nvlist_free(dummy); | |
2938 | return (err); | |
34dc7c2f BB |
2939 | } |
2940 | ||
2941 | static int | |
2942 | zfs_ioc_pool_set_props(zfs_cmd_t *zc) | |
2943 | { | |
2944 | nvlist_t *props; | |
2945 | spa_t *spa; | |
2946 | int error; | |
428870ff | 2947 | nvpair_t *pair; |
34dc7c2f | 2948 | |
c65aa5b2 BB |
2949 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
2950 | zc->zc_iflags, &props))) | |
34dc7c2f BB |
2951 | return (error); |
2952 | ||
d164b209 BB |
2953 | /* |
2954 | * If the only property is the configfile, then just do a spa_lookup() | |
2955 | * to handle the faulted case. | |
2956 | */ | |
428870ff BB |
2957 | pair = nvlist_next_nvpair(props, NULL); |
2958 | if (pair != NULL && strcmp(nvpair_name(pair), | |
d164b209 | 2959 | zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 && |
428870ff | 2960 | nvlist_next_nvpair(props, pair) == NULL) { |
d164b209 BB |
2961 | mutex_enter(&spa_namespace_lock); |
2962 | if ((spa = spa_lookup(zc->zc_name)) != NULL) { | |
2963 | spa_configfile_set(spa, props, B_FALSE); | |
a1d477c2 | 2964 | spa_write_cachefile(spa, B_FALSE, B_TRUE); |
d164b209 BB |
2965 | } |
2966 | mutex_exit(&spa_namespace_lock); | |
428870ff BB |
2967 | if (spa != NULL) { |
2968 | nvlist_free(props); | |
d164b209 | 2969 | return (0); |
428870ff | 2970 | } |
d164b209 BB |
2971 | } |
2972 | ||
34dc7c2f BB |
2973 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2974 | nvlist_free(props); | |
2975 | return (error); | |
2976 | } | |
2977 | ||
2978 | error = spa_prop_set(spa, props); | |
2979 | ||
2980 | nvlist_free(props); | |
2981 | spa_close(spa, FTAG); | |
2982 | ||
2983 | return (error); | |
2984 | } | |
2985 | ||
2986 | static int | |
2987 | zfs_ioc_pool_get_props(zfs_cmd_t *zc) | |
2988 | { | |
2989 | spa_t *spa; | |
2990 | int error; | |
2991 | nvlist_t *nvp = NULL; | |
2992 | ||
d164b209 BB |
2993 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2994 | /* | |
2995 | * If the pool is faulted, there may be properties we can still | |
2996 | * get (such as altroot and cachefile), so attempt to get them | |
2997 | * anyway. | |
2998 | */ | |
2999 | mutex_enter(&spa_namespace_lock); | |
3000 | if ((spa = spa_lookup(zc->zc_name)) != NULL) | |
3001 | error = spa_prop_get(spa, &nvp); | |
3002 | mutex_exit(&spa_namespace_lock); | |
3003 | } else { | |
3004 | error = spa_prop_get(spa, &nvp); | |
3005 | spa_close(spa, FTAG); | |
3006 | } | |
34dc7c2f | 3007 | |
b8864a23 | 3008 | if (error == 0 && zc->zc_nvlist_dst != 0) |
34dc7c2f BB |
3009 | error = put_nvlist(zc, nvp); |
3010 | else | |
2e528b49 | 3011 | error = SET_ERROR(EFAULT); |
34dc7c2f | 3012 | |
d164b209 | 3013 | nvlist_free(nvp); |
34dc7c2f BB |
3014 | return (error); |
3015 | } | |
3016 | ||
34dc7c2f BB |
3017 | /* |
3018 | * inputs: | |
3019 | * zc_name name of filesystem | |
3020 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
3021 | * zc_perm_action allow/unallow flag | |
3022 | * | |
3023 | * outputs: none | |
3024 | */ | |
3025 | static int | |
3026 | zfs_ioc_set_fsacl(zfs_cmd_t *zc) | |
3027 | { | |
3028 | int error; | |
3029 | nvlist_t *fsaclnv = NULL; | |
3030 | ||
3031 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 3032 | zc->zc_iflags, &fsaclnv)) != 0) |
34dc7c2f BB |
3033 | return (error); |
3034 | ||
3035 | /* | |
3036 | * Verify nvlist is constructed correctly | |
3037 | */ | |
3038 | if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) { | |
3039 | nvlist_free(fsaclnv); | |
2e528b49 | 3040 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
3041 | } |
3042 | ||
3043 | /* | |
3044 | * If we don't have PRIV_SYS_MOUNT, then validate | |
3045 | * that user is allowed to hand out each permission in | |
3046 | * the nvlist(s) | |
3047 | */ | |
3048 | ||
3049 | error = secpolicy_zfs(CRED()); | |
13fe0198 | 3050 | if (error != 0) { |
34dc7c2f BB |
3051 | if (zc->zc_perm_action == B_FALSE) { |
3052 | error = dsl_deleg_can_allow(zc->zc_name, | |
3053 | fsaclnv, CRED()); | |
3054 | } else { | |
3055 | error = dsl_deleg_can_unallow(zc->zc_name, | |
3056 | fsaclnv, CRED()); | |
3057 | } | |
3058 | } | |
3059 | ||
3060 | if (error == 0) | |
3061 | error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action); | |
3062 | ||
3063 | nvlist_free(fsaclnv); | |
3064 | return (error); | |
3065 | } | |
3066 | ||
3067 | /* | |
3068 | * inputs: | |
3069 | * zc_name name of filesystem | |
3070 | * | |
3071 | * outputs: | |
3072 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
3073 | */ | |
3074 | static int | |
3075 | zfs_ioc_get_fsacl(zfs_cmd_t *zc) | |
3076 | { | |
3077 | nvlist_t *nvp; | |
3078 | int error; | |
3079 | ||
3080 | if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) { | |
3081 | error = put_nvlist(zc, nvp); | |
3082 | nvlist_free(nvp); | |
3083 | } | |
3084 | ||
3085 | return (error); | |
3086 | } | |
3087 | ||
34dc7c2f BB |
3088 | /* ARGSUSED */ |
3089 | static void | |
3090 | zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx) | |
3091 | { | |
3092 | zfs_creat_t *zct = arg; | |
3093 | ||
3094 | zfs_create_fs(os, cr, zct->zct_zplprops, tx); | |
3095 | } | |
3096 | ||
3097 | #define ZFS_PROP_UNDEFINED ((uint64_t)-1) | |
3098 | ||
3099 | /* | |
3100 | * inputs: | |
b128c09f | 3101 | * os parent objset pointer (NULL if root fs) |
d3cc8b15 WA |
3102 | * fuids_ok fuids allowed in this version of the spa? |
3103 | * sa_ok SAs allowed in this version of the spa? | |
3104 | * createprops list of properties requested by creator | |
34dc7c2f BB |
3105 | * |
3106 | * outputs: | |
3107 | * zplprops values for the zplprops we attach to the master node object | |
b128c09f | 3108 | * is_ci true if requested file system will be purely case-insensitive |
34dc7c2f BB |
3109 | * |
3110 | * Determine the settings for utf8only, normalization and | |
3111 | * casesensitivity. Specific values may have been requested by the | |
3112 | * creator and/or we can inherit values from the parent dataset. If | |
3113 | * the file system is of too early a vintage, a creator can not | |
3114 | * request settings for these properties, even if the requested | |
3115 | * setting is the default value. We don't actually want to create dsl | |
3116 | * properties for these, so remove them from the source nvlist after | |
3117 | * processing. | |
3118 | */ | |
3119 | static int | |
9babb374 | 3120 | zfs_fill_zplprops_impl(objset_t *os, uint64_t zplver, |
428870ff BB |
3121 | boolean_t fuids_ok, boolean_t sa_ok, nvlist_t *createprops, |
3122 | nvlist_t *zplprops, boolean_t *is_ci) | |
34dc7c2f | 3123 | { |
34dc7c2f BB |
3124 | uint64_t sense = ZFS_PROP_UNDEFINED; |
3125 | uint64_t norm = ZFS_PROP_UNDEFINED; | |
3126 | uint64_t u8 = ZFS_PROP_UNDEFINED; | |
b129c659 | 3127 | int error; |
34dc7c2f BB |
3128 | |
3129 | ASSERT(zplprops != NULL); | |
3130 | ||
87a275d9 AG |
3131 | if (os != NULL && os->os_phys->os_type != DMU_OST_ZFS) |
3132 | return (SET_ERROR(EINVAL)); | |
3133 | ||
34dc7c2f BB |
3134 | /* |
3135 | * Pull out creator prop choices, if any. | |
3136 | */ | |
3137 | if (createprops) { | |
b128c09f BB |
3138 | (void) nvlist_lookup_uint64(createprops, |
3139 | zfs_prop_to_name(ZFS_PROP_VERSION), &zplver); | |
34dc7c2f BB |
3140 | (void) nvlist_lookup_uint64(createprops, |
3141 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm); | |
3142 | (void) nvlist_remove_all(createprops, | |
3143 | zfs_prop_to_name(ZFS_PROP_NORMALIZE)); | |
3144 | (void) nvlist_lookup_uint64(createprops, | |
3145 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8); | |
3146 | (void) nvlist_remove_all(createprops, | |
3147 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); | |
3148 | (void) nvlist_lookup_uint64(createprops, | |
3149 | zfs_prop_to_name(ZFS_PROP_CASE), &sense); | |
3150 | (void) nvlist_remove_all(createprops, | |
3151 | zfs_prop_to_name(ZFS_PROP_CASE)); | |
3152 | } | |
3153 | ||
3154 | /* | |
b128c09f BB |
3155 | * If the zpl version requested is whacky or the file system |
3156 | * or pool is version is too "young" to support normalization | |
3157 | * and the creator tried to set a value for one of the props, | |
3158 | * error out. | |
34dc7c2f | 3159 | */ |
b128c09f BB |
3160 | if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) || |
3161 | (zplver >= ZPL_VERSION_FUID && !fuids_ok) || | |
428870ff | 3162 | (zplver >= ZPL_VERSION_SA && !sa_ok) || |
b128c09f | 3163 | (zplver < ZPL_VERSION_NORMALIZATION && |
34dc7c2f | 3164 | (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED || |
b128c09f | 3165 | sense != ZFS_PROP_UNDEFINED))) |
2e528b49 | 3166 | return (SET_ERROR(ENOTSUP)); |
34dc7c2f BB |
3167 | |
3168 | /* | |
3169 | * Put the version in the zplprops | |
3170 | */ | |
3171 | VERIFY(nvlist_add_uint64(zplprops, | |
3172 | zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0); | |
3173 | ||
b129c659 MM |
3174 | if (norm == ZFS_PROP_UNDEFINED && |
3175 | (error = zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm)) != 0) | |
3176 | return (error); | |
34dc7c2f BB |
3177 | VERIFY(nvlist_add_uint64(zplprops, |
3178 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0); | |
3179 | ||
3180 | /* | |
3181 | * If we're normalizing, names must always be valid UTF-8 strings. | |
3182 | */ | |
3183 | if (norm) | |
3184 | u8 = 1; | |
b129c659 MM |
3185 | if (u8 == ZFS_PROP_UNDEFINED && |
3186 | (error = zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8)) != 0) | |
3187 | return (error); | |
34dc7c2f BB |
3188 | VERIFY(nvlist_add_uint64(zplprops, |
3189 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0); | |
3190 | ||
b129c659 MM |
3191 | if (sense == ZFS_PROP_UNDEFINED && |
3192 | (error = zfs_get_zplprop(os, ZFS_PROP_CASE, &sense)) != 0) | |
3193 | return (error); | |
34dc7c2f BB |
3194 | VERIFY(nvlist_add_uint64(zplprops, |
3195 | zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0); | |
3196 | ||
3197 | if (is_ci) | |
3198 | *is_ci = (sense == ZFS_CASE_INSENSITIVE); | |
3199 | ||
34dc7c2f BB |
3200 | return (0); |
3201 | } | |
3202 | ||
b128c09f BB |
3203 | static int |
3204 | zfs_fill_zplprops(const char *dataset, nvlist_t *createprops, | |
3205 | nvlist_t *zplprops, boolean_t *is_ci) | |
3206 | { | |
428870ff | 3207 | boolean_t fuids_ok, sa_ok; |
b128c09f BB |
3208 | uint64_t zplver = ZPL_VERSION; |
3209 | objset_t *os = NULL; | |
eca7b760 | 3210 | char parentname[ZFS_MAX_DATASET_NAME_LEN]; |
b128c09f | 3211 | char *cp; |
428870ff BB |
3212 | spa_t *spa; |
3213 | uint64_t spa_vers; | |
b128c09f BB |
3214 | int error; |
3215 | ||
3216 | (void) strlcpy(parentname, dataset, sizeof (parentname)); | |
3217 | cp = strrchr(parentname, '/'); | |
3218 | ASSERT(cp != NULL); | |
3219 | cp[0] = '\0'; | |
3220 | ||
428870ff BB |
3221 | if ((error = spa_open(dataset, &spa, FTAG)) != 0) |
3222 | return (error); | |
3223 | ||
3224 | spa_vers = spa_version(spa); | |
3225 | spa_close(spa, FTAG); | |
3226 | ||
3227 | zplver = zfs_zpl_version_map(spa_vers); | |
3228 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
3229 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f BB |
3230 | |
3231 | /* | |
3232 | * Open parent object set so we can inherit zplprop values. | |
3233 | */ | |
428870ff | 3234 | if ((error = dmu_objset_hold(parentname, FTAG, &os)) != 0) |
b128c09f BB |
3235 | return (error); |
3236 | ||
428870ff | 3237 | error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, sa_ok, createprops, |
b128c09f | 3238 | zplprops, is_ci); |
428870ff | 3239 | dmu_objset_rele(os, FTAG); |
b128c09f BB |
3240 | return (error); |
3241 | } | |
3242 | ||
3243 | static int | |
3244 | zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops, | |
3245 | nvlist_t *zplprops, boolean_t *is_ci) | |
3246 | { | |
428870ff BB |
3247 | boolean_t fuids_ok; |
3248 | boolean_t sa_ok; | |
b128c09f BB |
3249 | uint64_t zplver = ZPL_VERSION; |
3250 | int error; | |
3251 | ||
428870ff BB |
3252 | zplver = zfs_zpl_version_map(spa_vers); |
3253 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
3254 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f | 3255 | |
428870ff BB |
3256 | error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, sa_ok, |
3257 | createprops, zplprops, is_ci); | |
b128c09f BB |
3258 | return (error); |
3259 | } | |
3260 | ||
34dc7c2f | 3261 | /* |
6f1ffb06 MA |
3262 | * innvl: { |
3263 | * "type" -> dmu_objset_type_t (int32) | |
3264 | * (optional) "props" -> { prop -> value } | |
b5256303 TC |
3265 | * (optional) "hidden_args" -> { "wkeydata" -> value } |
3266 | * raw uint8_t array of encryption wrapping key data (32 bytes) | |
6f1ffb06 | 3267 | * } |
34dc7c2f | 3268 | * |
6f1ffb06 | 3269 | * outnvl: propname -> error code (int32) |
34dc7c2f | 3270 | */ |
b83a0e2d DB |
3271 | |
3272 | static const zfs_ioc_key_t zfs_keys_create[] = { | |
3273 | {"type", DATA_TYPE_INT32, 0}, | |
3274 | {"props", DATA_TYPE_NVLIST, ZK_OPTIONAL}, | |
3275 | {"hidden_args", DATA_TYPE_NVLIST, ZK_OPTIONAL}, | |
3276 | }; | |
3277 | ||
34dc7c2f | 3278 | static int |
6f1ffb06 | 3279 | zfs_ioc_create(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3280 | { |
34dc7c2f | 3281 | int error = 0; |
6f1ffb06 | 3282 | zfs_creat_t zct = { 0 }; |
34dc7c2f | 3283 | nvlist_t *nvprops = NULL; |
b5256303 | 3284 | nvlist_t *hidden_args = NULL; |
34dc7c2f | 3285 | void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx); |
6f1ffb06 MA |
3286 | dmu_objset_type_t type; |
3287 | boolean_t is_insensitive = B_FALSE; | |
b5256303 | 3288 | dsl_crypto_params_t *dcp = NULL; |
34dc7c2f | 3289 | |
b83a0e2d | 3290 | type = (dmu_objset_type_t)fnvlist_lookup_int32(innvl, "type"); |
6f1ffb06 | 3291 | (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); |
b5256303 | 3292 | (void) nvlist_lookup_nvlist(innvl, ZPOOL_HIDDEN_ARGS, &hidden_args); |
34dc7c2f | 3293 | |
6f1ffb06 | 3294 | switch (type) { |
34dc7c2f BB |
3295 | case DMU_OST_ZFS: |
3296 | cbfunc = zfs_create_cb; | |
3297 | break; | |
3298 | ||
3299 | case DMU_OST_ZVOL: | |
3300 | cbfunc = zvol_create_cb; | |
3301 | break; | |
3302 | ||
3303 | default: | |
3304 | cbfunc = NULL; | |
3305 | break; | |
3306 | } | |
6f1ffb06 MA |
3307 | if (strchr(fsname, '@') || |
3308 | strchr(fsname, '%')) | |
2e528b49 | 3309 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3310 | |
34dc7c2f BB |
3311 | zct.zct_props = nvprops; |
3312 | ||
6f1ffb06 | 3313 | if (cbfunc == NULL) |
2e528b49 | 3314 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3315 | |
6f1ffb06 MA |
3316 | if (type == DMU_OST_ZVOL) { |
3317 | uint64_t volsize, volblocksize; | |
34dc7c2f | 3318 | |
6f1ffb06 | 3319 | if (nvprops == NULL) |
2e528b49 | 3320 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3321 | if (nvlist_lookup_uint64(nvprops, |
3322 | zfs_prop_to_name(ZFS_PROP_VOLSIZE), &volsize) != 0) | |
2e528b49 | 3323 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3324 | |
6f1ffb06 MA |
3325 | if ((error = nvlist_lookup_uint64(nvprops, |
3326 | zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
3327 | &volblocksize)) != 0 && error != ENOENT) | |
2e528b49 | 3328 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3329 | |
6f1ffb06 MA |
3330 | if (error != 0) |
3331 | volblocksize = zfs_prop_default_numeric( | |
3332 | ZFS_PROP_VOLBLOCKSIZE); | |
34dc7c2f | 3333 | |
4cb7b9c5 | 3334 | if ((error = zvol_check_volblocksize(fsname, |
6f1ffb06 MA |
3335 | volblocksize)) != 0 || |
3336 | (error = zvol_check_volsize(volsize, | |
3337 | volblocksize)) != 0) | |
3338 | return (error); | |
3339 | } else if (type == DMU_OST_ZFS) { | |
3340 | int error; | |
34dc7c2f | 3341 | |
6f1ffb06 MA |
3342 | /* |
3343 | * We have to have normalization and | |
3344 | * case-folding flags correct when we do the | |
3345 | * file system creation, so go figure them out | |
3346 | * now. | |
3347 | */ | |
3348 | VERIFY(nvlist_alloc(&zct.zct_zplprops, | |
3349 | NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3350 | error = zfs_fill_zplprops(fsname, nvprops, | |
3351 | zct.zct_zplprops, &is_insensitive); | |
3352 | if (error != 0) { | |
3353 | nvlist_free(zct.zct_zplprops); | |
3354 | return (error); | |
34dc7c2f | 3355 | } |
34dc7c2f BB |
3356 | } |
3357 | ||
b5256303 TC |
3358 | error = dsl_crypto_params_create_nvlist(DCP_CMD_NONE, nvprops, |
3359 | hidden_args, &dcp); | |
3360 | if (error != 0) { | |
3361 | nvlist_free(zct.zct_zplprops); | |
3362 | return (error); | |
3363 | } | |
3364 | ||
6f1ffb06 | 3365 | error = dmu_objset_create(fsname, type, |
b5256303 TC |
3366 | is_insensitive ? DS_FLAG_CI_DATASET : 0, dcp, cbfunc, &zct); |
3367 | ||
6f1ffb06 | 3368 | nvlist_free(zct.zct_zplprops); |
b5256303 | 3369 | dsl_crypto_params_free(dcp, !!error); |
6f1ffb06 | 3370 | |
34dc7c2f BB |
3371 | /* |
3372 | * It would be nice to do this atomically. | |
3373 | */ | |
3374 | if (error == 0) { | |
6f1ffb06 MA |
3375 | error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, |
3376 | nvprops, outnvl); | |
f74b821a BB |
3377 | if (error != 0) { |
3378 | spa_t *spa; | |
3379 | int error2; | |
3380 | ||
3381 | /* | |
3382 | * Volumes will return EBUSY and cannot be destroyed | |
3383 | * until all asynchronous minor handling has completed. | |
3384 | * Wait for the spa_zvol_taskq to drain then retry. | |
3385 | */ | |
3386 | error2 = dsl_destroy_head(fsname); | |
3387 | while ((error2 == EBUSY) && (type == DMU_OST_ZVOL)) { | |
3388 | error2 = spa_open(fsname, &spa, FTAG); | |
3389 | if (error2 == 0) { | |
3390 | taskq_wait(spa->spa_zvol_taskq); | |
3391 | spa_close(spa, FTAG); | |
3392 | } | |
3393 | error2 = dsl_destroy_head(fsname); | |
3394 | } | |
3395 | } | |
34dc7c2f | 3396 | } |
34dc7c2f BB |
3397 | return (error); |
3398 | } | |
3399 | ||
3400 | /* | |
6f1ffb06 MA |
3401 | * innvl: { |
3402 | * "origin" -> name of origin snapshot | |
3403 | * (optional) "props" -> { prop -> value } | |
b5256303 TC |
3404 | * (optional) "hidden_args" -> { "wkeydata" -> value } |
3405 | * raw uint8_t array of encryption wrapping key data (32 bytes) | |
6f1ffb06 | 3406 | * } |
34dc7c2f | 3407 | * |
428870ff | 3408 | * outputs: |
6f1ffb06 | 3409 | * outnvl: propname -> error code (int32) |
34dc7c2f | 3410 | */ |
b83a0e2d DB |
3411 | static const zfs_ioc_key_t zfs_keys_clone[] = { |
3412 | {"origin", DATA_TYPE_STRING, 0}, | |
3413 | {"props", DATA_TYPE_NVLIST, ZK_OPTIONAL}, | |
3414 | {"hidden_args", DATA_TYPE_NVLIST, ZK_OPTIONAL}, | |
3415 | }; | |
3416 | ||
34dc7c2f | 3417 | static int |
6f1ffb06 | 3418 | zfs_ioc_clone(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3419 | { |
6f1ffb06 | 3420 | int error = 0; |
b128c09f | 3421 | nvlist_t *nvprops = NULL; |
6f1ffb06 | 3422 | char *origin_name; |
b128c09f | 3423 | |
b83a0e2d | 3424 | origin_name = fnvlist_lookup_string(innvl, "origin"); |
6f1ffb06 | 3425 | (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); |
b128c09f | 3426 | |
6f1ffb06 MA |
3427 | if (strchr(fsname, '@') || |
3428 | strchr(fsname, '%')) | |
2e528b49 | 3429 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3430 | |
3431 | if (dataset_namecheck(origin_name, NULL, NULL) != 0) | |
2e528b49 | 3432 | return (SET_ERROR(EINVAL)); |
b5256303 | 3433 | |
13fe0198 | 3434 | error = dmu_objset_clone(fsname, origin_name); |
b128c09f | 3435 | |
6f1ffb06 MA |
3436 | /* |
3437 | * It would be nice to do this atomically. | |
3438 | */ | |
3439 | if (error == 0) { | |
3440 | error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, | |
3441 | nvprops, outnvl); | |
3442 | if (error != 0) | |
13fe0198 | 3443 | (void) dsl_destroy_head(fsname); |
b128c09f | 3444 | } |
6f1ffb06 MA |
3445 | return (error); |
3446 | } | |
9babb374 | 3447 | |
b83a0e2d DB |
3448 | static const zfs_ioc_key_t zfs_keys_remap[] = { |
3449 | /* no nvl keys */ | |
3450 | }; | |
3451 | ||
a1d477c2 MA |
3452 | /* ARGSUSED */ |
3453 | static int | |
3454 | zfs_ioc_remap(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) | |
3455 | { | |
3456 | if (strchr(fsname, '@') || | |
3457 | strchr(fsname, '%')) | |
3458 | return (SET_ERROR(EINVAL)); | |
3459 | ||
3460 | return (dmu_objset_remap_indirects(fsname)); | |
3461 | } | |
3462 | ||
6f1ffb06 MA |
3463 | /* |
3464 | * innvl: { | |
3465 | * "snaps" -> { snapshot1, snapshot2 } | |
3466 | * (optional) "props" -> { prop -> value (string) } | |
3467 | * } | |
3468 | * | |
3469 | * outnvl: snapshot -> error code (int32) | |
6f1ffb06 | 3470 | */ |
b83a0e2d DB |
3471 | static const zfs_ioc_key_t zfs_keys_snapshot[] = { |
3472 | {"snaps", DATA_TYPE_NVLIST, 0}, | |
3473 | {"props", DATA_TYPE_NVLIST, ZK_OPTIONAL}, | |
3474 | }; | |
3475 | ||
6f1ffb06 MA |
3476 | static int |
3477 | zfs_ioc_snapshot(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) | |
3478 | { | |
3479 | nvlist_t *snaps; | |
3480 | nvlist_t *props = NULL; | |
3481 | int error, poollen; | |
1c27024e | 3482 | nvpair_t *pair; |
9babb374 | 3483 | |
6f1ffb06 MA |
3484 | (void) nvlist_lookup_nvlist(innvl, "props", &props); |
3485 | if ((error = zfs_check_userprops(poolname, props)) != 0) | |
3486 | return (error); | |
3487 | ||
3488 | if (!nvlist_empty(props) && | |
3489 | zfs_earlier_version(poolname, SPA_VERSION_SNAP_PROPS)) | |
2e528b49 | 3490 | return (SET_ERROR(ENOTSUP)); |
6f1ffb06 | 3491 | |
b83a0e2d | 3492 | snaps = fnvlist_lookup_nvlist(innvl, "snaps"); |
6f1ffb06 MA |
3493 | poollen = strlen(poolname); |
3494 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; | |
3495 | pair = nvlist_next_nvpair(snaps, pair)) { | |
3496 | const char *name = nvpair_name(pair); | |
3497 | const char *cp = strchr(name, '@'); | |
3498 | ||
3499 | /* | |
3500 | * The snap name must contain an @, and the part after it must | |
3501 | * contain only valid characters. | |
3502 | */ | |
da536844 MA |
3503 | if (cp == NULL || |
3504 | zfs_component_namecheck(cp + 1, NULL, NULL) != 0) | |
2e528b49 | 3505 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3506 | |
3507 | /* | |
3508 | * The snap must be in the specified pool. | |
3509 | */ | |
3510 | if (strncmp(name, poolname, poollen) != 0 || | |
3511 | (name[poollen] != '/' && name[poollen] != '@')) | |
2e528b49 | 3512 | return (SET_ERROR(EXDEV)); |
6f1ffb06 MA |
3513 | |
3514 | /* This must be the only snap of this fs. */ | |
1c27024e | 3515 | for (nvpair_t *pair2 = nvlist_next_nvpair(snaps, pair); |
6f1ffb06 MA |
3516 | pair2 != NULL; pair2 = nvlist_next_nvpair(snaps, pair2)) { |
3517 | if (strncmp(name, nvpair_name(pair2), cp - name + 1) | |
3518 | == 0) { | |
2e528b49 | 3519 | return (SET_ERROR(EXDEV)); |
6f1ffb06 MA |
3520 | } |
3521 | } | |
3522 | } | |
3523 | ||
13fe0198 | 3524 | error = dsl_dataset_snapshot(snaps, props, outnvl); |
ba6a2402 | 3525 | |
6f1ffb06 MA |
3526 | return (error); |
3527 | } | |
3528 | ||
3529 | /* | |
3530 | * innvl: "message" -> string | |
3531 | */ | |
b83a0e2d DB |
3532 | static const zfs_ioc_key_t zfs_keys_log_history[] = { |
3533 | {"message", DATA_TYPE_STRING, 0}, | |
3534 | }; | |
3535 | ||
6f1ffb06 MA |
3536 | /* ARGSUSED */ |
3537 | static int | |
3538 | zfs_ioc_log_history(const char *unused, nvlist_t *innvl, nvlist_t *outnvl) | |
3539 | { | |
3540 | char *message; | |
3541 | spa_t *spa; | |
3542 | int error; | |
3543 | char *poolname; | |
3544 | ||
3545 | /* | |
3546 | * The poolname in the ioctl is not set, we get it from the TSD, | |
3547 | * which was set at the end of the last successful ioctl that allows | |
3548 | * logging. The secpolicy func already checked that it is set. | |
3549 | * Only one log ioctl is allowed after each successful ioctl, so | |
3550 | * we clear the TSD here. | |
3551 | */ | |
3552 | poolname = tsd_get(zfs_allow_log_key); | |
9f3d1407 | 3553 | if (poolname == NULL) |
3554 | return (SET_ERROR(EINVAL)); | |
6f1ffb06 MA |
3555 | (void) tsd_set(zfs_allow_log_key, NULL); |
3556 | error = spa_open(poolname, &spa, FTAG); | |
3557 | strfree(poolname); | |
3558 | if (error != 0) | |
3559 | return (error); | |
3560 | ||
b83a0e2d | 3561 | message = fnvlist_lookup_string(innvl, "message"); |
6f1ffb06 MA |
3562 | |
3563 | if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { | |
3564 | spa_close(spa, FTAG); | |
2e528b49 | 3565 | return (SET_ERROR(ENOTSUP)); |
6f1ffb06 MA |
3566 | } |
3567 | ||
3568 | error = spa_history_log(spa, message); | |
3569 | spa_close(spa, FTAG); | |
b128c09f | 3570 | return (error); |
34dc7c2f BB |
3571 | } |
3572 | ||
ebe7e575 | 3573 | /* |
13fe0198 MA |
3574 | * The dp_config_rwlock must not be held when calling this, because the |
3575 | * unmount may need to write out data. | |
3576 | * | |
3577 | * This function is best-effort. Callers must deal gracefully if it | |
3578 | * remains mounted (or is remounted after this call). | |
d09f25dc | 3579 | * |
278bee93 BB |
3580 | * Returns 0 if the argument is not a snapshot, or it is not currently a |
3581 | * filesystem, or we were able to unmount it. Returns error code otherwise. | |
ebe7e575 | 3582 | */ |
8d103d88 | 3583 | void |
13fe0198 | 3584 | zfs_unmount_snap(const char *snapname) |
34dc7c2f | 3585 | { |
278bee93 | 3586 | if (strchr(snapname, '@') == NULL) |
8d103d88 | 3587 | return; |
ebe7e575 | 3588 | |
8d103d88 | 3589 | (void) zfsctl_snapshot_unmount((char *)snapname, MNT_FORCE); |
13fe0198 MA |
3590 | } |
3591 | ||
3592 | /* ARGSUSED */ | |
3593 | static int | |
3594 | zfs_unmount_snap_cb(const char *snapname, void *arg) | |
3595 | { | |
8d103d88 SD |
3596 | zfs_unmount_snap(snapname); |
3597 | return (0); | |
13fe0198 MA |
3598 | } |
3599 | ||
3600 | /* | |
3601 | * When a clone is destroyed, its origin may also need to be destroyed, | |
3602 | * in which case it must be unmounted. This routine will do that unmount | |
3603 | * if necessary. | |
3604 | */ | |
3605 | void | |
3606 | zfs_destroy_unmount_origin(const char *fsname) | |
3607 | { | |
3608 | int error; | |
3609 | objset_t *os; | |
3610 | dsl_dataset_t *ds; | |
3611 | ||
3612 | error = dmu_objset_hold(fsname, FTAG, &os); | |
3613 | if (error != 0) | |
3614 | return; | |
3615 | ds = dmu_objset_ds(os); | |
3616 | if (dsl_dir_is_clone(ds->ds_dir) && DS_IS_DEFER_DESTROY(ds->ds_prev)) { | |
eca7b760 | 3617 | char originname[ZFS_MAX_DATASET_NAME_LEN]; |
13fe0198 MA |
3618 | dsl_dataset_name(ds->ds_prev, originname); |
3619 | dmu_objset_rele(os, FTAG); | |
8d103d88 | 3620 | zfs_unmount_snap(originname); |
13fe0198 MA |
3621 | } else { |
3622 | dmu_objset_rele(os, FTAG); | |
3623 | } | |
34dc7c2f BB |
3624 | } |
3625 | ||
3626 | /* | |
6f1ffb06 MA |
3627 | * innvl: { |
3628 | * "snaps" -> { snapshot1, snapshot2 } | |
3629 | * (optional boolean) "defer" | |
3630 | * } | |
34dc7c2f | 3631 | * |
6f1ffb06 | 3632 | * outnvl: snapshot -> error code (int32) |
34dc7c2f | 3633 | */ |
b83a0e2d DB |
3634 | static const zfs_ioc_key_t zfs_keys_destroy_snaps[] = { |
3635 | {"snaps", DATA_TYPE_NVLIST, 0}, | |
3636 | {"defer", DATA_TYPE_BOOLEAN, ZK_OPTIONAL}, | |
3637 | }; | |
3638 | ||
da536844 | 3639 | /* ARGSUSED */ |
34dc7c2f | 3640 | static int |
6f1ffb06 | 3641 | zfs_ioc_destroy_snaps(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3642 | { |
6f1ffb06 | 3643 | nvlist_t *snaps; |
330d06f9 | 3644 | nvpair_t *pair; |
6f1ffb06 | 3645 | boolean_t defer; |
34dc7c2f | 3646 | |
b83a0e2d | 3647 | snaps = fnvlist_lookup_nvlist(innvl, "snaps"); |
6f1ffb06 | 3648 | defer = nvlist_exists(innvl, "defer"); |
330d06f9 | 3649 | |
6f1ffb06 MA |
3650 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; |
3651 | pair = nvlist_next_nvpair(snaps, pair)) { | |
8d103d88 | 3652 | zfs_unmount_snap(nvpair_name(pair)); |
da536844 MA |
3653 | } |
3654 | ||
3655 | return (dsl_destroy_snapshots_nvl(snaps, defer, outnvl)); | |
3656 | } | |
3657 | ||
3658 | /* | |
3659 | * Create bookmarks. Bookmark names are of the form <fs>#<bmark>. | |
3660 | * All bookmarks must be in the same pool. | |
3661 | * | |
3662 | * innvl: { | |
3663 | * bookmark1 -> snapshot1, bookmark2 -> snapshot2 | |
3664 | * } | |
3665 | * | |
3666 | * outnvl: bookmark -> error code (int32) | |
3667 | * | |
3668 | */ | |
b83a0e2d DB |
3669 | static const zfs_ioc_key_t zfs_keys_bookmark[] = { |
3670 | {"<bookmark>...", DATA_TYPE_STRING, ZK_WILDCARDLIST}, | |
3671 | }; | |
3672 | ||
da536844 MA |
3673 | /* ARGSUSED */ |
3674 | static int | |
3675 | zfs_ioc_bookmark(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) | |
3676 | { | |
1c27024e | 3677 | for (nvpair_t *pair = nvlist_next_nvpair(innvl, NULL); |
da536844 MA |
3678 | pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { |
3679 | char *snap_name; | |
3680 | ||
3681 | /* | |
3682 | * Verify the snapshot argument. | |
3683 | */ | |
3684 | if (nvpair_value_string(pair, &snap_name) != 0) | |
3685 | return (SET_ERROR(EINVAL)); | |
3686 | ||
3687 | ||
3688 | /* Verify that the keys (bookmarks) are unique */ | |
1c27024e | 3689 | for (nvpair_t *pair2 = nvlist_next_nvpair(innvl, pair); |
da536844 MA |
3690 | pair2 != NULL; pair2 = nvlist_next_nvpair(innvl, pair2)) { |
3691 | if (strcmp(nvpair_name(pair), nvpair_name(pair2)) == 0) | |
3692 | return (SET_ERROR(EINVAL)); | |
3693 | } | |
3694 | } | |
3695 | ||
3696 | return (dsl_bookmark_create(innvl, outnvl)); | |
3697 | } | |
3698 | ||
3699 | /* | |
3700 | * innvl: { | |
3701 | * property 1, property 2, ... | |
3702 | * } | |
3703 | * | |
3704 | * outnvl: { | |
3705 | * bookmark name 1 -> { property 1, property 2, ... }, | |
3706 | * bookmark name 2 -> { property 1, property 2, ... } | |
3707 | * } | |
3708 | * | |
3709 | */ | |
b83a0e2d DB |
3710 | static const zfs_ioc_key_t zfs_keys_get_bookmarks[] = { |
3711 | {"<property>...", DATA_TYPE_BOOLEAN, ZK_WILDCARDLIST | ZK_OPTIONAL}, | |
3712 | }; | |
3713 | ||
da536844 MA |
3714 | static int |
3715 | zfs_ioc_get_bookmarks(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) | |
3716 | { | |
3717 | return (dsl_get_bookmarks(fsname, innvl, outnvl)); | |
3718 | } | |
3719 | ||
3720 | /* | |
3721 | * innvl: { | |
3722 | * bookmark name 1, bookmark name 2 | |
3723 | * } | |
3724 | * | |
3725 | * outnvl: bookmark -> error code (int32) | |
3726 | * | |
3727 | */ | |
b83a0e2d DB |
3728 | static const zfs_ioc_key_t zfs_keys_destroy_bookmarks[] = { |
3729 | {"<bookmark>...", DATA_TYPE_BOOLEAN, ZK_WILDCARDLIST}, | |
3730 | }; | |
3731 | ||
da536844 MA |
3732 | static int |
3733 | zfs_ioc_destroy_bookmarks(const char *poolname, nvlist_t *innvl, | |
3734 | nvlist_t *outnvl) | |
3735 | { | |
3736 | int error, poollen; | |
da536844 MA |
3737 | |
3738 | poollen = strlen(poolname); | |
1c27024e | 3739 | for (nvpair_t *pair = nvlist_next_nvpair(innvl, NULL); |
da536844 | 3740 | pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { |
330d06f9 | 3741 | const char *name = nvpair_name(pair); |
da536844 | 3742 | const char *cp = strchr(name, '#'); |
6f1ffb06 | 3743 | |
330d06f9 | 3744 | /* |
da536844 MA |
3745 | * The bookmark name must contain an #, and the part after it |
3746 | * must contain only valid characters. | |
3747 | */ | |
3748 | if (cp == NULL || | |
3749 | zfs_component_namecheck(cp + 1, NULL, NULL) != 0) | |
3750 | return (SET_ERROR(EINVAL)); | |
3751 | ||
3752 | /* | |
3753 | * The bookmark must be in the specified pool. | |
330d06f9 | 3754 | */ |
6f1ffb06 | 3755 | if (strncmp(name, poolname, poollen) != 0 || |
da536844 | 3756 | (name[poollen] != '/' && name[poollen] != '#')) |
2e528b49 | 3757 | return (SET_ERROR(EXDEV)); |
330d06f9 MA |
3758 | } |
3759 | ||
da536844 MA |
3760 | error = dsl_bookmark_destroy(innvl, outnvl); |
3761 | return (error); | |
34dc7c2f BB |
3762 | } |
3763 | ||
b83a0e2d DB |
3764 | static const zfs_ioc_key_t zfs_keys_channel_program[] = { |
3765 | {"program", DATA_TYPE_STRING, 0}, | |
3766 | {"arg", DATA_TYPE_ANY, 0}, | |
3767 | {"sync", DATA_TYPE_BOOLEAN_VALUE, ZK_OPTIONAL}, | |
3768 | {"instrlimit", DATA_TYPE_UINT64, ZK_OPTIONAL}, | |
3769 | {"memlimit", DATA_TYPE_UINT64, ZK_OPTIONAL}, | |
3770 | }; | |
3771 | ||
d99a0153 CW |
3772 | static int |
3773 | zfs_ioc_channel_program(const char *poolname, nvlist_t *innvl, | |
3774 | nvlist_t *outnvl) | |
3775 | { | |
3776 | char *program; | |
3777 | uint64_t instrlimit, memlimit; | |
5b72a38d | 3778 | boolean_t sync_flag; |
d99a0153 CW |
3779 | nvpair_t *nvarg = NULL; |
3780 | ||
b83a0e2d | 3781 | program = fnvlist_lookup_string(innvl, ZCP_ARG_PROGRAM); |
5b72a38d SD |
3782 | if (0 != nvlist_lookup_boolean_value(innvl, ZCP_ARG_SYNC, &sync_flag)) { |
3783 | sync_flag = B_TRUE; | |
3784 | } | |
d99a0153 CW |
3785 | if (0 != nvlist_lookup_uint64(innvl, ZCP_ARG_INSTRLIMIT, &instrlimit)) { |
3786 | instrlimit = ZCP_DEFAULT_INSTRLIMIT; | |
3787 | } | |
3788 | if (0 != nvlist_lookup_uint64(innvl, ZCP_ARG_MEMLIMIT, &memlimit)) { | |
3789 | memlimit = ZCP_DEFAULT_MEMLIMIT; | |
3790 | } | |
b83a0e2d | 3791 | nvarg = fnvlist_lookup_nvpair(innvl, ZCP_ARG_ARGLIST); |
d99a0153 CW |
3792 | |
3793 | if (instrlimit == 0 || instrlimit > zfs_lua_max_instrlimit) | |
3794 | return (EINVAL); | |
234c91c5 | 3795 | if (memlimit == 0 || memlimit > zfs_lua_max_memlimit) |
d99a0153 CW |
3796 | return (EINVAL); |
3797 | ||
5b72a38d | 3798 | return (zcp_eval(poolname, program, sync_flag, instrlimit, memlimit, |
d99a0153 CW |
3799 | nvarg, outnvl)); |
3800 | } | |
3801 | ||
d2734cce SD |
3802 | /* |
3803 | * innvl: unused | |
3804 | * outnvl: empty | |
3805 | */ | |
b83a0e2d DB |
3806 | static const zfs_ioc_key_t zfs_keys_pool_checkpoint[] = { |
3807 | /* no nvl keys */ | |
3808 | }; | |
3809 | ||
d2734cce SD |
3810 | /* ARGSUSED */ |
3811 | static int | |
3812 | zfs_ioc_pool_checkpoint(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) | |
3813 | { | |
3814 | return (spa_checkpoint(poolname)); | |
3815 | } | |
3816 | ||
3817 | /* | |
3818 | * innvl: unused | |
3819 | * outnvl: empty | |
3820 | */ | |
b83a0e2d DB |
3821 | static const zfs_ioc_key_t zfs_keys_pool_discard_checkpoint[] = { |
3822 | /* no nvl keys */ | |
3823 | }; | |
3824 | ||
d2734cce SD |
3825 | /* ARGSUSED */ |
3826 | static int | |
3827 | zfs_ioc_pool_discard_checkpoint(const char *poolname, nvlist_t *innvl, | |
3828 | nvlist_t *outnvl) | |
3829 | { | |
3830 | return (spa_checkpoint_discard(poolname)); | |
3831 | } | |
3832 | ||
34dc7c2f BB |
3833 | /* |
3834 | * inputs: | |
3835 | * zc_name name of dataset to destroy | |
3836 | * zc_objset_type type of objset | |
45d1cae3 | 3837 | * zc_defer_destroy mark for deferred destroy |
34dc7c2f BB |
3838 | * |
3839 | * outputs: none | |
3840 | */ | |
3841 | static int | |
3842 | zfs_ioc_destroy(zfs_cmd_t *zc) | |
3843 | { | |
428870ff | 3844 | int err; |
d09f25dc | 3845 | |
8d103d88 SD |
3846 | if (zc->zc_objset_type == DMU_OST_ZFS) |
3847 | zfs_unmount_snap(zc->zc_name); | |
34dc7c2f | 3848 | |
1b87e0f5 | 3849 | if (strchr(zc->zc_name, '@')) { |
13fe0198 | 3850 | err = dsl_destroy_snapshot(zc->zc_name, zc->zc_defer_destroy); |
1b87e0f5 | 3851 | } else { |
13fe0198 | 3852 | err = dsl_destroy_head(zc->zc_name); |
1b87e0f5 RS |
3853 | if (err == EEXIST) { |
3854 | /* | |
3855 | * It is possible that the given DS may have | |
3856 | * hidden child (%recv) datasets - "leftovers" | |
3857 | * resulting from the previously interrupted | |
3858 | * 'zfs receive'. | |
3859 | * | |
3860 | * 6 extra bytes for /%recv | |
3861 | */ | |
3862 | char namebuf[ZFS_MAX_DATASET_NAME_LEN + 6]; | |
3863 | ||
682ce104 TH |
3864 | if (snprintf(namebuf, sizeof (namebuf), "%s/%s", |
3865 | zc->zc_name, recv_clone_name) >= | |
3866 | sizeof (namebuf)) | |
3867 | return (SET_ERROR(EINVAL)); | |
1b87e0f5 RS |
3868 | |
3869 | /* | |
3870 | * Try to remove the hidden child (%recv) and after | |
3871 | * that try to remove the target dataset. | |
3872 | * If the hidden child (%recv) does not exist | |
3873 | * the original error (EEXIST) will be returned | |
3874 | */ | |
3875 | err = dsl_destroy_head(namebuf); | |
3876 | if (err == 0) | |
3877 | err = dsl_destroy_head(zc->zc_name); | |
3878 | else if (err == ENOENT) | |
ecb2b7dc | 3879 | err = SET_ERROR(EEXIST); |
1b87e0f5 RS |
3880 | } |
3881 | } | |
a0bd735a | 3882 | |
428870ff | 3883 | return (err); |
34dc7c2f BB |
3884 | } |
3885 | ||
3886 | /* | |
46ba1e59 | 3887 | * fsname is name of dataset to rollback (to most recent snapshot) |
34dc7c2f | 3888 | * |
8ca78ab0 | 3889 | * innvl may contain name of expected target snapshot |
46ba1e59 MA |
3890 | * |
3891 | * outnvl: "target" -> name of most recent snapshot | |
3892 | * } | |
34dc7c2f | 3893 | */ |
b83a0e2d DB |
3894 | static const zfs_ioc_key_t zfs_keys_rollback[] = { |
3895 | {"target", DATA_TYPE_STRING, ZK_OPTIONAL}, | |
3896 | }; | |
3897 | ||
46ba1e59 | 3898 | /* ARGSUSED */ |
34dc7c2f | 3899 | static int |
8ca78ab0 | 3900 | zfs_ioc_rollback(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3901 | { |
0037b49e | 3902 | zfsvfs_t *zfsvfs; |
040dab99 | 3903 | zvol_state_t *zv; |
8ca78ab0 | 3904 | char *target = NULL; |
13fe0198 | 3905 | int error; |
34dc7c2f | 3906 | |
8ca78ab0 AG |
3907 | (void) nvlist_lookup_string(innvl, "target", &target); |
3908 | if (target != NULL) { | |
13342832 | 3909 | const char *cp = strchr(target, '@'); |
8ca78ab0 | 3910 | |
13342832 AG |
3911 | /* |
3912 | * The snap name must contain an @, and the part after it must | |
3913 | * contain only valid characters. | |
3914 | */ | |
3915 | if (cp == NULL || | |
3916 | zfs_component_namecheck(cp + 1, NULL, NULL) != 0) | |
8ca78ab0 AG |
3917 | return (SET_ERROR(EINVAL)); |
3918 | } | |
3919 | ||
f298b24d | 3920 | if (getzfsvfs(fsname, &zfsvfs) == 0) { |
ec923db2 GM |
3921 | dsl_dataset_t *ds; |
3922 | ||
0037b49e BB |
3923 | ds = dmu_objset_ds(zfsvfs->z_os); |
3924 | error = zfs_suspend_fs(zfsvfs); | |
34dc7c2f BB |
3925 | if (error == 0) { |
3926 | int resume_err; | |
3927 | ||
8ca78ab0 AG |
3928 | error = dsl_dataset_rollback(fsname, target, zfsvfs, |
3929 | outnvl); | |
0037b49e | 3930 | resume_err = zfs_resume_fs(zfsvfs, ds); |
34dc7c2f | 3931 | error = error ? error : resume_err; |
34dc7c2f | 3932 | } |
0037b49e | 3933 | deactivate_super(zfsvfs->z_sb); |
040dab99 | 3934 | } else if ((zv = zvol_suspend(fsname)) != NULL) { |
8ca78ab0 AG |
3935 | error = dsl_dataset_rollback(fsname, target, zvol_tag(zv), |
3936 | outnvl); | |
040dab99 | 3937 | zvol_resume(zv); |
34dc7c2f | 3938 | } else { |
8ca78ab0 | 3939 | error = dsl_dataset_rollback(fsname, target, NULL, outnvl); |
34dc7c2f | 3940 | } |
13fe0198 MA |
3941 | return (error); |
3942 | } | |
34dc7c2f | 3943 | |
13fe0198 MA |
3944 | static int |
3945 | recursive_unmount(const char *fsname, void *arg) | |
3946 | { | |
3947 | const char *snapname = arg; | |
3948 | char *fullname; | |
428870ff | 3949 | |
13fe0198 | 3950 | fullname = kmem_asprintf("%s@%s", fsname, snapname); |
8d103d88 | 3951 | zfs_unmount_snap(fullname); |
13fe0198 | 3952 | strfree(fullname); |
00fcdee1 | 3953 | |
8d103d88 | 3954 | return (0); |
34dc7c2f BB |
3955 | } |
3956 | ||
3957 | /* | |
3958 | * inputs: | |
3959 | * zc_name old name of dataset | |
3960 | * zc_value new name of dataset | |
3961 | * zc_cookie recursive flag (only valid for snapshots) | |
3962 | * | |
3963 | * outputs: none | |
3964 | */ | |
3965 | static int | |
3966 | zfs_ioc_rename(zfs_cmd_t *zc) | |
3967 | { | |
3968 | boolean_t recursive = zc->zc_cookie & 1; | |
13fe0198 | 3969 | char *at; |
34dc7c2f | 3970 | |
650258d7 | 3971 | /* "zfs rename" from and to ...%recv datasets should both fail */ |
3972 | zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; | |
34dc7c2f | 3973 | zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; |
650258d7 | 3974 | if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0 || |
3975 | dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
3976 | strchr(zc->zc_name, '%') || strchr(zc->zc_value, '%')) | |
2e528b49 | 3977 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3978 | |
13fe0198 MA |
3979 | at = strchr(zc->zc_name, '@'); |
3980 | if (at != NULL) { | |
3981 | /* snaps must be in same fs */ | |
9554185d SH |
3982 | int error; |
3983 | ||
13fe0198 | 3984 | if (strncmp(zc->zc_name, zc->zc_value, at - zc->zc_name + 1)) |
2e528b49 | 3985 | return (SET_ERROR(EXDEV)); |
13fe0198 MA |
3986 | *at = '\0'; |
3987 | if (zc->zc_objset_type == DMU_OST_ZFS) { | |
9554185d | 3988 | error = dmu_objset_find(zc->zc_name, |
13fe0198 MA |
3989 | recursive_unmount, at + 1, |
3990 | recursive ? DS_FIND_CHILDREN : 0); | |
9554185d SH |
3991 | if (error != 0) { |
3992 | *at = '@'; | |
13fe0198 | 3993 | return (error); |
9554185d | 3994 | } |
13fe0198 | 3995 | } |
9554185d SH |
3996 | error = dsl_dataset_rename_snapshot(zc->zc_name, |
3997 | at + 1, strchr(zc->zc_value, '@') + 1, recursive); | |
3998 | *at = '@'; | |
3999 | ||
4000 | return (error); | |
13fe0198 | 4001 | } else { |
ba6a2402 | 4002 | return (dsl_dir_rename(zc->zc_name, zc->zc_value)); |
95c73795 | 4003 | } |
34dc7c2f BB |
4004 | } |
4005 | ||
428870ff BB |
4006 | static int |
4007 | zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr) | |
4008 | { | |
4009 | const char *propname = nvpair_name(pair); | |
4010 | boolean_t issnap = (strchr(dsname, '@') != NULL); | |
4011 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
4012 | uint64_t intval; | |
4013 | int err; | |
4014 | ||
4015 | if (prop == ZPROP_INVAL) { | |
4016 | if (zfs_prop_user(propname)) { | |
c65aa5b2 BB |
4017 | if ((err = zfs_secpolicy_write_perms(dsname, |
4018 | ZFS_DELEG_PERM_USERPROP, cr))) | |
428870ff BB |
4019 | return (err); |
4020 | return (0); | |
4021 | } | |
4022 | ||
4023 | if (!issnap && zfs_prop_userquota(propname)) { | |
4024 | const char *perm = NULL; | |
4025 | const char *uq_prefix = | |
4026 | zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA]; | |
4027 | const char *gq_prefix = | |
4028 | zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA]; | |
1de321e6 JX |
4029 | const char *uiq_prefix = |
4030 | zfs_userquota_prop_prefixes[ZFS_PROP_USEROBJQUOTA]; | |
4031 | const char *giq_prefix = | |
4032 | zfs_userquota_prop_prefixes[ZFS_PROP_GROUPOBJQUOTA]; | |
9c5167d1 NF |
4033 | const char *pq_prefix = |
4034 | zfs_userquota_prop_prefixes[ZFS_PROP_PROJECTQUOTA]; | |
4035 | const char *piq_prefix = zfs_userquota_prop_prefixes[\ | |
4036 | ZFS_PROP_PROJECTOBJQUOTA]; | |
428870ff BB |
4037 | |
4038 | if (strncmp(propname, uq_prefix, | |
4039 | strlen(uq_prefix)) == 0) { | |
4040 | perm = ZFS_DELEG_PERM_USERQUOTA; | |
1de321e6 JX |
4041 | } else if (strncmp(propname, uiq_prefix, |
4042 | strlen(uiq_prefix)) == 0) { | |
4043 | perm = ZFS_DELEG_PERM_USEROBJQUOTA; | |
428870ff BB |
4044 | } else if (strncmp(propname, gq_prefix, |
4045 | strlen(gq_prefix)) == 0) { | |
4046 | perm = ZFS_DELEG_PERM_GROUPQUOTA; | |
1de321e6 JX |
4047 | } else if (strncmp(propname, giq_prefix, |
4048 | strlen(giq_prefix)) == 0) { | |
4049 | perm = ZFS_DELEG_PERM_GROUPOBJQUOTA; | |
9c5167d1 NF |
4050 | } else if (strncmp(propname, pq_prefix, |
4051 | strlen(pq_prefix)) == 0) { | |
4052 | perm = ZFS_DELEG_PERM_PROJECTQUOTA; | |
4053 | } else if (strncmp(propname, piq_prefix, | |
4054 | strlen(piq_prefix)) == 0) { | |
4055 | perm = ZFS_DELEG_PERM_PROJECTOBJQUOTA; | |
428870ff | 4056 | } else { |
9c5167d1 | 4057 | /* {USER|GROUP|PROJECT}USED are read-only */ |
2e528b49 | 4058 | return (SET_ERROR(EINVAL)); |
428870ff BB |
4059 | } |
4060 | ||
c65aa5b2 | 4061 | if ((err = zfs_secpolicy_write_perms(dsname, perm, cr))) |
428870ff BB |
4062 | return (err); |
4063 | return (0); | |
4064 | } | |
4065 | ||
2e528b49 | 4066 | return (SET_ERROR(EINVAL)); |
428870ff BB |
4067 | } |
4068 | ||
4069 | if (issnap) | |
2e528b49 | 4070 | return (SET_ERROR(EINVAL)); |
428870ff BB |
4071 | |
4072 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
4073 | /* | |
4074 | * dsl_prop_get_all_impl() returns properties in this | |
4075 | * format. | |
4076 | */ | |
4077 | nvlist_t *attrs; | |
4078 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
4079 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
4080 | &pair) == 0); | |
4081 | } | |
4082 | ||
4083 | /* | |
4084 | * Check that this value is valid for this pool version | |
4085 | */ | |
4086 | switch (prop) { | |
4087 | case ZFS_PROP_COMPRESSION: | |
4088 | /* | |
4089 | * If the user specified gzip compression, make sure | |
4090 | * the SPA supports it. We ignore any errors here since | |
4091 | * we'll catch them later. | |
4092 | */ | |
f1512ee6 | 4093 | if (nvpair_value_uint64(pair, &intval) == 0) { |
428870ff BB |
4094 | if (intval >= ZIO_COMPRESS_GZIP_1 && |
4095 | intval <= ZIO_COMPRESS_GZIP_9 && | |
4096 | zfs_earlier_version(dsname, | |
4097 | SPA_VERSION_GZIP_COMPRESSION)) { | |
2e528b49 | 4098 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
4099 | } |
4100 | ||
4101 | if (intval == ZIO_COMPRESS_ZLE && | |
4102 | zfs_earlier_version(dsname, | |
4103 | SPA_VERSION_ZLE_COMPRESSION)) | |
2e528b49 | 4104 | return (SET_ERROR(ENOTSUP)); |
428870ff | 4105 | |
9759c60f | 4106 | if (intval == ZIO_COMPRESS_LZ4) { |
9759c60f ED |
4107 | spa_t *spa; |
4108 | ||
4109 | if ((err = spa_open(dsname, &spa, FTAG)) != 0) | |
4110 | return (err); | |
4111 | ||
fa86b5db MA |
4112 | if (!spa_feature_is_enabled(spa, |
4113 | SPA_FEATURE_LZ4_COMPRESS)) { | |
9759c60f | 4114 | spa_close(spa, FTAG); |
2e528b49 | 4115 | return (SET_ERROR(ENOTSUP)); |
9759c60f ED |
4116 | } |
4117 | spa_close(spa, FTAG); | |
4118 | } | |
4119 | ||
428870ff BB |
4120 | /* |
4121 | * If this is a bootable dataset then | |
4122 | * verify that the compression algorithm | |
4123 | * is supported for booting. We must return | |
4124 | * something other than ENOTSUP since it | |
4125 | * implies a downrev pool version. | |
4126 | */ | |
4127 | if (zfs_is_bootfs(dsname) && | |
4128 | !BOOTFS_COMPRESS_VALID(intval)) { | |
2e528b49 | 4129 | return (SET_ERROR(ERANGE)); |
428870ff BB |
4130 | } |
4131 | } | |
4132 | break; | |
4133 | ||
4134 | case ZFS_PROP_COPIES: | |
4135 | if (zfs_earlier_version(dsname, SPA_VERSION_DITTO_BLOCKS)) | |
2e528b49 | 4136 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
4137 | break; |
4138 | ||
4cb7b9c5 | 4139 | case ZFS_PROP_VOLBLOCKSIZE: |
f1512ee6 MA |
4140 | case ZFS_PROP_RECORDSIZE: |
4141 | /* Record sizes above 128k need the feature to be enabled */ | |
4142 | if (nvpair_value_uint64(pair, &intval) == 0 && | |
4143 | intval > SPA_OLD_MAXBLOCKSIZE) { | |
4144 | spa_t *spa; | |
4145 | ||
f1512ee6 MA |
4146 | /* |
4147 | * We don't allow setting the property above 1MB, | |
4148 | * unless the tunable has been changed. | |
4149 | */ | |
4150 | if (intval > zfs_max_recordsize || | |
4151 | intval > SPA_MAXBLOCKSIZE) | |
4b2a3e0c | 4152 | return (SET_ERROR(ERANGE)); |
f1512ee6 MA |
4153 | |
4154 | if ((err = spa_open(dsname, &spa, FTAG)) != 0) | |
4155 | return (err); | |
4156 | ||
4157 | if (!spa_feature_is_enabled(spa, | |
4158 | SPA_FEATURE_LARGE_BLOCKS)) { | |
4159 | spa_close(spa, FTAG); | |
4160 | return (SET_ERROR(ENOTSUP)); | |
4161 | } | |
4162 | spa_close(spa, FTAG); | |
4163 | } | |
4164 | break; | |
4165 | ||
50c957f7 NB |
4166 | case ZFS_PROP_DNODESIZE: |
4167 | /* Dnode sizes above 512 need the feature to be enabled */ | |
4168 | if (nvpair_value_uint64(pair, &intval) == 0 && | |
4169 | intval != ZFS_DNSIZE_LEGACY) { | |
4170 | spa_t *spa; | |
4171 | ||
4172 | /* | |
4173 | * If this is a bootable dataset then | |
4174 | * we don't allow large (>512B) dnodes, | |
4175 | * because GRUB doesn't support them. | |
4176 | */ | |
4177 | if (zfs_is_bootfs(dsname) && | |
02730c33 | 4178 | intval != ZFS_DNSIZE_LEGACY) { |
50c957f7 NB |
4179 | return (SET_ERROR(EDOM)); |
4180 | } | |
4181 | ||
4182 | if ((err = spa_open(dsname, &spa, FTAG)) != 0) | |
4183 | return (err); | |
4184 | ||
4185 | if (!spa_feature_is_enabled(spa, | |
4186 | SPA_FEATURE_LARGE_DNODE)) { | |
4187 | spa_close(spa, FTAG); | |
4188 | return (SET_ERROR(ENOTSUP)); | |
4189 | } | |
4190 | spa_close(spa, FTAG); | |
4191 | } | |
4192 | break; | |
4193 | ||
cc99f275 DB |
4194 | case ZFS_PROP_SPECIAL_SMALL_BLOCKS: |
4195 | /* | |
4196 | * This property could require the allocation classes | |
4197 | * feature to be active for setting, however we allow | |
4198 | * it so that tests of settable properties succeed. | |
4199 | * The CLI will issue a warning in this case. | |
4200 | */ | |
4201 | break; | |
4202 | ||
428870ff BB |
4203 | case ZFS_PROP_SHARESMB: |
4204 | if (zpl_earlier_version(dsname, ZPL_VERSION_FUID)) | |
2e528b49 | 4205 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
4206 | break; |
4207 | ||
4208 | case ZFS_PROP_ACLINHERIT: | |
4209 | if (nvpair_type(pair) == DATA_TYPE_UINT64 && | |
4210 | nvpair_value_uint64(pair, &intval) == 0) { | |
4211 | if (intval == ZFS_ACL_PASSTHROUGH_X && | |
4212 | zfs_earlier_version(dsname, | |
4213 | SPA_VERSION_PASSTHROUGH_X)) | |
2e528b49 | 4214 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
4215 | } |
4216 | break; | |
3c67d83a TH |
4217 | case ZFS_PROP_CHECKSUM: |
4218 | case ZFS_PROP_DEDUP: | |
4219 | { | |
4220 | spa_feature_t feature; | |
4221 | spa_t *spa; | |
3c67d83a TH |
4222 | int err; |
4223 | ||
4224 | /* dedup feature version checks */ | |
4225 | if (prop == ZFS_PROP_DEDUP && | |
4226 | zfs_earlier_version(dsname, SPA_VERSION_DEDUP)) | |
4227 | return (SET_ERROR(ENOTSUP)); | |
4228 | ||
c8c30836 | 4229 | if (nvpair_type(pair) == DATA_TYPE_UINT64 && |
4230 | nvpair_value_uint64(pair, &intval) == 0) { | |
4231 | /* check prop value is enabled in features */ | |
4232 | feature = zio_checksum_to_feature( | |
4233 | intval & ZIO_CHECKSUM_MASK); | |
4234 | if (feature == SPA_FEATURE_NONE) | |
4235 | break; | |
3c67d83a | 4236 | |
c8c30836 | 4237 | if ((err = spa_open(dsname, &spa, FTAG)) != 0) |
4238 | return (err); | |
5fadb7fb | 4239 | |
c8c30836 | 4240 | if (!spa_feature_is_enabled(spa, feature)) { |
4241 | spa_close(spa, FTAG); | |
4242 | return (SET_ERROR(ENOTSUP)); | |
4243 | } | |
3c67d83a | 4244 | spa_close(spa, FTAG); |
3c67d83a | 4245 | } |
3c67d83a TH |
4246 | break; |
4247 | } | |
4248 | ||
e75c13c3 BB |
4249 | default: |
4250 | break; | |
428870ff BB |
4251 | } |
4252 | ||
4253 | return (zfs_secpolicy_setprop(dsname, prop, pair, CRED())); | |
4254 | } | |
4255 | ||
4256 | /* | |
4257 | * Removes properties from the given props list that fail permission checks | |
4258 | * needed to clear them and to restore them in case of a receive error. For each | |
4259 | * property, make sure we have both set and inherit permissions. | |
4260 | * | |
4261 | * Returns the first error encountered if any permission checks fail. If the | |
4262 | * caller provides a non-NULL errlist, it also gives the complete list of names | |
4263 | * of all the properties that failed a permission check along with the | |
4264 | * corresponding error numbers. The caller is responsible for freeing the | |
4265 | * returned errlist. | |
4266 | * | |
4267 | * If every property checks out successfully, zero is returned and the list | |
4268 | * pointed at by errlist is NULL. | |
4269 | */ | |
4270 | static int | |
4271 | zfs_check_clearable(char *dataset, nvlist_t *props, nvlist_t **errlist) | |
b128c09f BB |
4272 | { |
4273 | zfs_cmd_t *zc; | |
428870ff BB |
4274 | nvpair_t *pair, *next_pair; |
4275 | nvlist_t *errors; | |
4276 | int err, rv = 0; | |
b128c09f BB |
4277 | |
4278 | if (props == NULL) | |
428870ff BB |
4279 | return (0); |
4280 | ||
4281 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
4282 | ||
efcd79a8 | 4283 | zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP); |
680eada9 | 4284 | (void) strlcpy(zc->zc_name, dataset, sizeof (zc->zc_name)); |
428870ff BB |
4285 | pair = nvlist_next_nvpair(props, NULL); |
4286 | while (pair != NULL) { | |
4287 | next_pair = nvlist_next_nvpair(props, pair); | |
4288 | ||
680eada9 | 4289 | (void) strlcpy(zc->zc_value, nvpair_name(pair), |
4290 | sizeof (zc->zc_value)); | |
428870ff | 4291 | if ((err = zfs_check_settable(dataset, pair, CRED())) != 0 || |
6f1ffb06 | 4292 | (err = zfs_secpolicy_inherit_prop(zc, NULL, CRED())) != 0) { |
428870ff BB |
4293 | VERIFY(nvlist_remove_nvpair(props, pair) == 0); |
4294 | VERIFY(nvlist_add_int32(errors, | |
4295 | zc->zc_value, err) == 0); | |
4296 | } | |
4297 | pair = next_pair; | |
b128c09f BB |
4298 | } |
4299 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
428870ff BB |
4300 | |
4301 | if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) { | |
4302 | nvlist_free(errors); | |
4303 | errors = NULL; | |
4304 | } else { | |
4305 | VERIFY(nvpair_value_int32(pair, &rv) == 0); | |
4306 | } | |
4307 | ||
4308 | if (errlist == NULL) | |
4309 | nvlist_free(errors); | |
4310 | else | |
4311 | *errlist = errors; | |
4312 | ||
4313 | return (rv); | |
4314 | } | |
4315 | ||
4316 | static boolean_t | |
4317 | propval_equals(nvpair_t *p1, nvpair_t *p2) | |
4318 | { | |
4319 | if (nvpair_type(p1) == DATA_TYPE_NVLIST) { | |
4320 | /* dsl_prop_get_all_impl() format */ | |
4321 | nvlist_t *attrs; | |
4322 | VERIFY(nvpair_value_nvlist(p1, &attrs) == 0); | |
4323 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
4324 | &p1) == 0); | |
4325 | } | |
4326 | ||
4327 | if (nvpair_type(p2) == DATA_TYPE_NVLIST) { | |
4328 | nvlist_t *attrs; | |
4329 | VERIFY(nvpair_value_nvlist(p2, &attrs) == 0); | |
4330 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
4331 | &p2) == 0); | |
4332 | } | |
4333 | ||
4334 | if (nvpair_type(p1) != nvpair_type(p2)) | |
4335 | return (B_FALSE); | |
4336 | ||
4337 | if (nvpair_type(p1) == DATA_TYPE_STRING) { | |
4338 | char *valstr1, *valstr2; | |
4339 | ||
4340 | VERIFY(nvpair_value_string(p1, (char **)&valstr1) == 0); | |
4341 | VERIFY(nvpair_value_string(p2, (char **)&valstr2) == 0); | |
4342 | return (strcmp(valstr1, valstr2) == 0); | |
4343 | } else { | |
4344 | uint64_t intval1, intval2; | |
4345 | ||
4346 | VERIFY(nvpair_value_uint64(p1, &intval1) == 0); | |
4347 | VERIFY(nvpair_value_uint64(p2, &intval2) == 0); | |
4348 | return (intval1 == intval2); | |
4349 | } | |
b128c09f BB |
4350 | } |
4351 | ||
428870ff BB |
4352 | /* |
4353 | * Remove properties from props if they are not going to change (as determined | |
4354 | * by comparison with origprops). Remove them from origprops as well, since we | |
4355 | * do not need to clear or restore properties that won't change. | |
4356 | */ | |
4357 | static void | |
4358 | props_reduce(nvlist_t *props, nvlist_t *origprops) | |
4359 | { | |
4360 | nvpair_t *pair, *next_pair; | |
4361 | ||
4362 | if (origprops == NULL) | |
4363 | return; /* all props need to be received */ | |
4364 | ||
4365 | pair = nvlist_next_nvpair(props, NULL); | |
4366 | while (pair != NULL) { | |
4367 | const char *propname = nvpair_name(pair); | |
4368 | nvpair_t *match; | |
4369 | ||
4370 | next_pair = nvlist_next_nvpair(props, pair); | |
4371 | ||
4372 | if ((nvlist_lookup_nvpair(origprops, propname, | |
4373 | &match) != 0) || !propval_equals(pair, match)) | |
4374 | goto next; /* need to set received value */ | |
4375 | ||
4376 | /* don't clear the existing received value */ | |
4377 | (void) nvlist_remove_nvpair(origprops, match); | |
4378 | /* don't bother receiving the property */ | |
4379 | (void) nvlist_remove_nvpair(props, pair); | |
4380 | next: | |
4381 | pair = next_pair; | |
4382 | } | |
4383 | } | |
4384 | ||
671c9354 DM |
4385 | /* |
4386 | * Extract properties that cannot be set PRIOR to the receipt of a dataset. | |
4387 | * For example, refquota cannot be set until after the receipt of a dataset, | |
4388 | * because in replication streams, an older/earlier snapshot may exceed the | |
4389 | * refquota. We want to receive the older/earlier snapshot, but setting | |
4390 | * refquota pre-receipt will set the dsl's ACTUAL quota, which will prevent | |
4391 | * the older/earlier snapshot from being received (with EDQUOT). | |
4392 | * | |
4393 | * The ZFS test "zfs_receive_011_pos" demonstrates such a scenario. | |
4394 | * | |
4395 | * libzfs will need to be judicious handling errors encountered by props | |
4396 | * extracted by this function. | |
4397 | */ | |
4398 | static nvlist_t * | |
4399 | extract_delay_props(nvlist_t *props) | |
4400 | { | |
4401 | nvlist_t *delayprops; | |
4402 | nvpair_t *nvp, *tmp; | |
b5256303 TC |
4403 | static const zfs_prop_t delayable[] = { |
4404 | ZFS_PROP_REFQUOTA, | |
4405 | ZFS_PROP_KEYLOCATION, | |
4406 | 0 | |
4407 | }; | |
671c9354 DM |
4408 | int i; |
4409 | ||
4410 | VERIFY(nvlist_alloc(&delayprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
4411 | ||
4412 | for (nvp = nvlist_next_nvpair(props, NULL); nvp != NULL; | |
4413 | nvp = nvlist_next_nvpair(props, nvp)) { | |
4414 | /* | |
4415 | * strcmp() is safe because zfs_prop_to_name() always returns | |
4416 | * a bounded string. | |
4417 | */ | |
4418 | for (i = 0; delayable[i] != 0; i++) { | |
4419 | if (strcmp(zfs_prop_to_name(delayable[i]), | |
4420 | nvpair_name(nvp)) == 0) { | |
4421 | break; | |
4422 | } | |
4423 | } | |
4424 | if (delayable[i] != 0) { | |
4425 | tmp = nvlist_prev_nvpair(props, nvp); | |
4426 | VERIFY(nvlist_add_nvpair(delayprops, nvp) == 0); | |
4427 | VERIFY(nvlist_remove_nvpair(props, nvp) == 0); | |
4428 | nvp = tmp; | |
4429 | } | |
4430 | } | |
4431 | ||
4432 | if (nvlist_empty(delayprops)) { | |
4433 | nvlist_free(delayprops); | |
4434 | delayprops = NULL; | |
4435 | } | |
4436 | return (delayprops); | |
4437 | } | |
4438 | ||
428870ff BB |
4439 | #ifdef DEBUG |
4440 | static boolean_t zfs_ioc_recv_inject_err; | |
4441 | #endif | |
4442 | ||
34dc7c2f | 4443 | /* |
1bf3bf0e GN |
4444 | * nvlist 'errors' is always allocated. It will contain descriptions of |
4445 | * encountered errors, if any. It's the callers responsibility to free. | |
34dc7c2f BB |
4446 | */ |
4447 | static int | |
a3eeab2d | 4448 | zfs_ioc_recv_impl(char *tofs, char *tosnap, char *origin, nvlist_t *recvprops, |
d9c460a0 TC |
4449 | nvlist_t *localprops, nvlist_t *hidden_args, boolean_t force, |
4450 | boolean_t resumable, int input_fd, dmu_replay_record_t *begin_record, | |
4451 | int cleanup_fd, uint64_t *read_bytes, uint64_t *errflags, | |
4452 | uint64_t *action_handle, nvlist_t **errors) | |
34dc7c2f | 4453 | { |
34dc7c2f | 4454 | dmu_recv_cookie_t drc; |
428870ff BB |
4455 | int error = 0; |
4456 | int props_error = 0; | |
34dc7c2f | 4457 | offset_t off; |
d9c460a0 TC |
4458 | nvlist_t *local_delayprops = NULL; |
4459 | nvlist_t *recv_delayprops = NULL; | |
43e52edd | 4460 | nvlist_t *origprops = NULL; /* existing properties */ |
a3eeab2d | 4461 | nvlist_t *origrecvd = NULL; /* existing received properties */ |
428870ff | 4462 | boolean_t first_recvd_props = B_FALSE; |
43e52edd | 4463 | file_t *input_fp; |
34dc7c2f | 4464 | |
1bf3bf0e GN |
4465 | *read_bytes = 0; |
4466 | *errflags = 0; | |
4467 | *errors = fnvlist_alloc(); | |
4468 | ||
43e52edd BB |
4469 | input_fp = getf(input_fd); |
4470 | if (input_fp == NULL) | |
2e528b49 | 4471 | return (SET_ERROR(EBADF)); |
13fe0198 | 4472 | |
d9c460a0 TC |
4473 | error = dmu_recv_begin(tofs, tosnap, begin_record, force, |
4474 | resumable, localprops, hidden_args, origin, &drc); | |
13fe0198 MA |
4475 | if (error != 0) |
4476 | goto out; | |
4477 | ||
4478 | /* | |
4479 | * Set properties before we receive the stream so that they are applied | |
4480 | * to the new data. Note that we must call dmu_recv_stream() if | |
4481 | * dmu_recv_begin() succeeds. | |
4482 | */ | |
a3eeab2d | 4483 | if (recvprops != NULL && !drc.drc_newfs) { |
13fe0198 MA |
4484 | if (spa_version(dsl_dataset_get_spa(drc.drc_ds)) >= |
4485 | SPA_VERSION_RECVD_PROPS && | |
4486 | !dsl_prop_get_hasrecvd(tofs)) | |
428870ff | 4487 | first_recvd_props = B_TRUE; |
428870ff | 4488 | |
b128c09f | 4489 | /* |
428870ff | 4490 | * If new received properties are supplied, they are to |
d9c460a0 TC |
4491 | * completely replace the existing received properties, |
4492 | * so stash away the existing ones. | |
b128c09f | 4493 | */ |
a3eeab2d | 4494 | if (dsl_prop_get_received(tofs, &origrecvd) == 0) { |
428870ff BB |
4495 | nvlist_t *errlist = NULL; |
4496 | /* | |
4497 | * Don't bother writing a property if its value won't | |
4498 | * change (and avoid the unnecessary security checks). | |
4499 | * | |
4500 | * The first receive after SPA_VERSION_RECVD_PROPS is a | |
4501 | * special case where we blow away all local properties | |
4502 | * regardless. | |
4503 | */ | |
4504 | if (!first_recvd_props) | |
a3eeab2d | 4505 | props_reduce(recvprops, origrecvd); |
4506 | if (zfs_check_clearable(tofs, origrecvd, &errlist) != 0) | |
43e52edd | 4507 | (void) nvlist_merge(*errors, errlist, 0); |
428870ff | 4508 | nvlist_free(errlist); |
b128c09f | 4509 | |
a3eeab2d | 4510 | if (clear_received_props(tofs, origrecvd, |
4511 | first_recvd_props ? NULL : recvprops) != 0) | |
4512 | *errflags |= ZPROP_ERR_NOCLEAR; | |
4513 | } else { | |
4514 | *errflags |= ZPROP_ERR_NOCLEAR; | |
4515 | } | |
4516 | } | |
4517 | ||
4518 | /* | |
4519 | * Stash away existing properties so we can restore them on error unless | |
4520 | * we're doing the first receive after SPA_VERSION_RECVD_PROPS, in which | |
4521 | * case "origrecvd" will take care of that. | |
4522 | */ | |
4523 | if (localprops != NULL && !drc.drc_newfs && !first_recvd_props) { | |
4524 | objset_t *os; | |
4525 | if (dmu_objset_hold(tofs, FTAG, &os) == 0) { | |
4526 | if (dsl_prop_get_all(os, &origprops) != 0) { | |
43e52edd | 4527 | *errflags |= ZPROP_ERR_NOCLEAR; |
a3eeab2d | 4528 | } |
4529 | dmu_objset_rele(os, FTAG); | |
13fe0198 | 4530 | } else { |
43e52edd | 4531 | *errflags |= ZPROP_ERR_NOCLEAR; |
428870ff | 4532 | } |
13fe0198 MA |
4533 | } |
4534 | ||
a3eeab2d | 4535 | if (recvprops != NULL) { |
13fe0198 | 4536 | props_error = dsl_prop_set_hasrecvd(tofs); |
428870ff | 4537 | |
13fe0198 | 4538 | if (props_error == 0) { |
d9c460a0 | 4539 | recv_delayprops = extract_delay_props(recvprops); |
13fe0198 | 4540 | (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED, |
a3eeab2d | 4541 | recvprops, *errors); |
13fe0198 | 4542 | } |
428870ff BB |
4543 | } |
4544 | ||
a3eeab2d | 4545 | if (localprops != NULL) { |
4546 | nvlist_t *oprops = fnvlist_alloc(); | |
4547 | nvlist_t *xprops = fnvlist_alloc(); | |
4548 | nvpair_t *nvp = NULL; | |
4549 | ||
4550 | while ((nvp = nvlist_next_nvpair(localprops, nvp)) != NULL) { | |
4551 | if (nvpair_type(nvp) == DATA_TYPE_BOOLEAN) { | |
4552 | /* -x property */ | |
4553 | const char *name = nvpair_name(nvp); | |
4554 | zfs_prop_t prop = zfs_name_to_prop(name); | |
4555 | if (prop != ZPROP_INVAL) { | |
4556 | if (!zfs_prop_inheritable(prop)) | |
4557 | continue; | |
4558 | } else if (!zfs_prop_user(name)) | |
4559 | continue; | |
4560 | fnvlist_add_boolean(xprops, name); | |
4561 | } else { | |
4562 | /* -o property=value */ | |
4563 | fnvlist_add_nvpair(oprops, nvp); | |
4564 | } | |
4565 | } | |
d9c460a0 TC |
4566 | |
4567 | local_delayprops = extract_delay_props(oprops); | |
a3eeab2d | 4568 | (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_LOCAL, |
4569 | oprops, *errors); | |
4570 | (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_INHERITED, | |
4571 | xprops, *errors); | |
4572 | ||
4573 | nvlist_free(oprops); | |
4574 | nvlist_free(xprops); | |
4575 | } | |
4576 | ||
43e52edd BB |
4577 | off = input_fp->f_offset; |
4578 | error = dmu_recv_stream(&drc, input_fp->f_vnode, &off, cleanup_fd, | |
4579 | action_handle); | |
34dc7c2f | 4580 | |
45d1cae3 | 4581 | if (error == 0) { |
0037b49e | 4582 | zfsvfs_t *zfsvfs = NULL; |
040dab99 | 4583 | zvol_state_t *zv = NULL; |
b128c09f | 4584 | |
f298b24d | 4585 | if (getzfsvfs(tofs, &zfsvfs) == 0) { |
45d1cae3 | 4586 | /* online recv */ |
ec923db2 | 4587 | dsl_dataset_t *ds; |
45d1cae3 | 4588 | int end_err; |
b128c09f | 4589 | |
0037b49e BB |
4590 | ds = dmu_objset_ds(zfsvfs->z_os); |
4591 | error = zfs_suspend_fs(zfsvfs); | |
45d1cae3 BB |
4592 | /* |
4593 | * If the suspend fails, then the recv_end will | |
4594 | * likely also fail, and clean up after itself. | |
4595 | */ | |
0037b49e | 4596 | end_err = dmu_recv_end(&drc, zfsvfs); |
428870ff | 4597 | if (error == 0) |
0037b49e | 4598 | error = zfs_resume_fs(zfsvfs, ds); |
45d1cae3 | 4599 | error = error ? error : end_err; |
0037b49e | 4600 | deactivate_super(zfsvfs->z_sb); |
040dab99 CC |
4601 | } else if ((zv = zvol_suspend(tofs)) != NULL) { |
4602 | error = dmu_recv_end(&drc, zvol_tag(zv)); | |
4603 | zvol_resume(zv); | |
b128c09f | 4604 | } else { |
831baf06 | 4605 | error = dmu_recv_end(&drc, NULL); |
34dc7c2f | 4606 | } |
671c9354 DM |
4607 | |
4608 | /* Set delayed properties now, after we're done receiving. */ | |
d9c460a0 | 4609 | if (recv_delayprops != NULL && error == 0) { |
671c9354 | 4610 | (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED, |
d9c460a0 TC |
4611 | recv_delayprops, *errors); |
4612 | } | |
4613 | if (local_delayprops != NULL && error == 0) { | |
4614 | (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_LOCAL, | |
4615 | local_delayprops, *errors); | |
671c9354 DM |
4616 | } |
4617 | } | |
4618 | ||
d9c460a0 TC |
4619 | /* |
4620 | * Merge delayed props back in with initial props, in case | |
4621 | * we're DEBUG and zfs_ioc_recv_inject_err is set (which means | |
4622 | * we have to make sure clear_received_props() includes | |
4623 | * the delayed properties). | |
4624 | * | |
4625 | * Since zfs_ioc_recv_inject_err is only in DEBUG kernels, | |
4626 | * using ASSERT() will be just like a VERIFY. | |
4627 | */ | |
4628 | if (recv_delayprops != NULL) { | |
4629 | ASSERT(nvlist_merge(recvprops, recv_delayprops, 0) == 0); | |
4630 | nvlist_free(recv_delayprops); | |
4631 | } | |
4632 | if (local_delayprops != NULL) { | |
4633 | ASSERT(nvlist_merge(localprops, local_delayprops, 0) == 0); | |
4634 | nvlist_free(local_delayprops); | |
671c9354 | 4635 | } |
34dc7c2f | 4636 | |
43e52edd BB |
4637 | *read_bytes = off - input_fp->f_offset; |
4638 | if (VOP_SEEK(input_fp->f_vnode, input_fp->f_offset, &off, NULL) == 0) | |
02730c33 | 4639 | input_fp->f_offset = off; |
34dc7c2f | 4640 | |
428870ff BB |
4641 | #ifdef DEBUG |
4642 | if (zfs_ioc_recv_inject_err) { | |
4643 | zfs_ioc_recv_inject_err = B_FALSE; | |
4644 | error = 1; | |
4645 | } | |
4646 | #endif | |
ba6a2402 | 4647 | |
b128c09f BB |
4648 | /* |
4649 | * On error, restore the original props. | |
4650 | */ | |
a3eeab2d | 4651 | if (error != 0 && recvprops != NULL && !drc.drc_newfs) { |
4652 | if (clear_received_props(tofs, recvprops, NULL) != 0) { | |
13fe0198 MA |
4653 | /* |
4654 | * We failed to clear the received properties. | |
4655 | * Since we may have left a $recvd value on the | |
4656 | * system, we can't clear the $hasrecvd flag. | |
4657 | */ | |
43e52edd | 4658 | *errflags |= ZPROP_ERR_NORESTORE; |
13fe0198 MA |
4659 | } else if (first_recvd_props) { |
4660 | dsl_prop_unset_hasrecvd(tofs); | |
428870ff BB |
4661 | } |
4662 | ||
a3eeab2d | 4663 | if (origrecvd == NULL && !drc.drc_newfs) { |
428870ff | 4664 | /* We failed to stash the original properties. */ |
43e52edd | 4665 | *errflags |= ZPROP_ERR_NORESTORE; |
428870ff BB |
4666 | } |
4667 | ||
4668 | /* | |
4669 | * dsl_props_set() will not convert RECEIVED to LOCAL on or | |
4670 | * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL | |
4e33ba4c | 4671 | * explicitly if we're restoring local properties cleared in the |
428870ff BB |
4672 | * first new-style receive. |
4673 | */ | |
a3eeab2d | 4674 | if (origrecvd != NULL && |
428870ff BB |
4675 | zfs_set_prop_nvlist(tofs, (first_recvd_props ? |
4676 | ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED), | |
a3eeab2d | 4677 | origrecvd, NULL) != 0) { |
428870ff BB |
4678 | /* |
4679 | * We stashed the original properties but failed to | |
4680 | * restore them. | |
4681 | */ | |
43e52edd | 4682 | *errflags |= ZPROP_ERR_NORESTORE; |
428870ff | 4683 | } |
b128c09f | 4684 | } |
a3eeab2d | 4685 | if (error != 0 && localprops != NULL && !drc.drc_newfs && |
4686 | !first_recvd_props) { | |
4687 | nvlist_t *setprops; | |
4688 | nvlist_t *inheritprops; | |
4689 | nvpair_t *nvp; | |
4690 | ||
4691 | if (origprops == NULL) { | |
4692 | /* We failed to stash the original properties. */ | |
4693 | *errflags |= ZPROP_ERR_NORESTORE; | |
4694 | goto out; | |
4695 | } | |
4696 | ||
4697 | /* Restore original props */ | |
4698 | setprops = fnvlist_alloc(); | |
4699 | inheritprops = fnvlist_alloc(); | |
4700 | nvp = NULL; | |
4701 | while ((nvp = nvlist_next_nvpair(localprops, nvp)) != NULL) { | |
4702 | const char *name = nvpair_name(nvp); | |
4703 | const char *source; | |
4704 | nvlist_t *attrs; | |
4705 | ||
4706 | if (!nvlist_exists(origprops, name)) { | |
4707 | /* | |
4708 | * Property was not present or was explicitly | |
4709 | * inherited before the receive, restore this. | |
4710 | */ | |
4711 | fnvlist_add_boolean(inheritprops, name); | |
4712 | continue; | |
4713 | } | |
4714 | attrs = fnvlist_lookup_nvlist(origprops, name); | |
4715 | source = fnvlist_lookup_string(attrs, ZPROP_SOURCE); | |
4716 | ||
4717 | /* Skip received properties */ | |
4718 | if (strcmp(source, ZPROP_SOURCE_VAL_RECVD) == 0) | |
4719 | continue; | |
4720 | ||
4721 | if (strcmp(source, tofs) == 0) { | |
4722 | /* Property was locally set */ | |
4723 | fnvlist_add_nvlist(setprops, name, attrs); | |
4724 | } else { | |
4725 | /* Property was implicitly inherited */ | |
4726 | fnvlist_add_boolean(inheritprops, name); | |
4727 | } | |
4728 | } | |
4729 | ||
4730 | if (zfs_set_prop_nvlist(tofs, ZPROP_SRC_LOCAL, setprops, | |
4731 | NULL) != 0) | |
4732 | *errflags |= ZPROP_ERR_NORESTORE; | |
4733 | if (zfs_set_prop_nvlist(tofs, ZPROP_SRC_INHERITED, inheritprops, | |
4734 | NULL) != 0) | |
4735 | *errflags |= ZPROP_ERR_NORESTORE; | |
4736 | ||
4737 | nvlist_free(setprops); | |
4738 | nvlist_free(inheritprops); | |
4739 | } | |
b128c09f | 4740 | out: |
43e52edd | 4741 | releasef(input_fd); |
a3eeab2d | 4742 | nvlist_free(origrecvd); |
b128c09f | 4743 | nvlist_free(origprops); |
428870ff BB |
4744 | |
4745 | if (error == 0) | |
4746 | error = props_error; | |
4747 | ||
34dc7c2f BB |
4748 | return (error); |
4749 | } | |
4750 | ||
43e52edd BB |
4751 | /* |
4752 | * inputs: | |
4753 | * zc_name name of containing filesystem (unused) | |
4754 | * zc_nvlist_src{_size} nvlist of properties to apply | |
a3eeab2d | 4755 | * zc_nvlist_conf{_size} nvlist of properties to exclude |
4756 | * (DATA_TYPE_BOOLEAN) and override (everything else) | |
43e52edd BB |
4757 | * zc_value name of snapshot to create |
4758 | * zc_string name of clone origin (if DRR_FLAG_CLONE) | |
4759 | * zc_cookie file descriptor to recv from | |
4760 | * zc_begin_record the BEGIN record of the stream (not byteswapped) | |
4761 | * zc_guid force flag | |
4762 | * zc_cleanup_fd cleanup-on-exit file descriptor | |
4763 | * zc_action_handle handle for this guid/ds mapping (or zero on first call) | |
4764 | * | |
4765 | * outputs: | |
4766 | * zc_cookie number of bytes read | |
4767 | * zc_obj zprop_errflags_t | |
4768 | * zc_action_handle handle for this guid/ds mapping | |
4769 | * zc_nvlist_dst{_size} error for each unapplied received property | |
4770 | */ | |
4771 | static int | |
4772 | zfs_ioc_recv(zfs_cmd_t *zc) | |
4773 | { | |
4774 | dmu_replay_record_t begin_record; | |
4775 | nvlist_t *errors = NULL; | |
a3eeab2d | 4776 | nvlist_t *recvdprops = NULL; |
4777 | nvlist_t *localprops = NULL; | |
43e52edd BB |
4778 | char *origin = NULL; |
4779 | char *tosnap; | |
eca7b760 | 4780 | char tofs[ZFS_MAX_DATASET_NAME_LEN]; |
43e52edd BB |
4781 | int error = 0; |
4782 | ||
4783 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
4784 | strchr(zc->zc_value, '@') == NULL || | |
4785 | strchr(zc->zc_value, '%')) | |
4786 | return (SET_ERROR(EINVAL)); | |
4787 | ||
30f3f2e1 | 4788 | (void) strlcpy(tofs, zc->zc_value, sizeof (tofs)); |
43e52edd BB |
4789 | tosnap = strchr(tofs, '@'); |
4790 | *tosnap++ = '\0'; | |
4791 | ||
4792 | if (zc->zc_nvlist_src != 0 && | |
4793 | (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
a3eeab2d | 4794 | zc->zc_iflags, &recvdprops)) != 0) |
4795 | return (error); | |
4796 | ||
4797 | if (zc->zc_nvlist_conf != 0 && | |
4798 | (error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
4799 | zc->zc_iflags, &localprops)) != 0) | |
43e52edd BB |
4800 | return (error); |
4801 | ||
4802 | if (zc->zc_string[0]) | |
4803 | origin = zc->zc_string; | |
4804 | ||
4805 | begin_record.drr_type = DRR_BEGIN; | |
4806 | begin_record.drr_payloadlen = 0; | |
4807 | begin_record.drr_u.drr_begin = zc->zc_begin_record; | |
4808 | ||
a3eeab2d | 4809 | error = zfs_ioc_recv_impl(tofs, tosnap, origin, recvdprops, localprops, |
d9c460a0 | 4810 | NULL, zc->zc_guid, B_FALSE, zc->zc_cookie, &begin_record, |
a3eeab2d | 4811 | zc->zc_cleanup_fd, &zc->zc_cookie, &zc->zc_obj, |
4812 | &zc->zc_action_handle, &errors); | |
4813 | nvlist_free(recvdprops); | |
4814 | nvlist_free(localprops); | |
43e52edd BB |
4815 | |
4816 | /* | |
4817 | * Now that all props, initial and delayed, are set, report the prop | |
4818 | * errors to the caller. | |
4819 | */ | |
4820 | if (zc->zc_nvlist_dst_size != 0 && errors != NULL && | |
4821 | (nvlist_smush(errors, zc->zc_nvlist_dst_size) != 0 || | |
4822 | put_nvlist(zc, errors) != 0)) { | |
4823 | /* | |
4824 | * Caller made zc->zc_nvlist_dst less than the minimum expected | |
4825 | * size or supplied an invalid address. | |
4826 | */ | |
4827 | error = SET_ERROR(EINVAL); | |
4828 | } | |
4829 | ||
4830 | nvlist_free(errors); | |
4831 | ||
4832 | return (error); | |
4833 | } | |
4834 | ||
4835 | /* | |
4836 | * innvl: { | |
4837 | * "snapname" -> full name of the snapshot to create | |
a3eeab2d | 4838 | * (optional) "props" -> received properties to set (nvlist) |
4839 | * (optional) "localprops" -> override and exclude properties (nvlist) | |
43e52edd BB |
4840 | * (optional) "origin" -> name of clone origin (DRR_FLAG_CLONE) |
4841 | * "begin_record" -> non-byteswapped dmu_replay_record_t | |
4842 | * "input_fd" -> file descriptor to read stream from (int32) | |
4843 | * (optional) "force" -> force flag (value ignored) | |
4844 | * (optional) "resumable" -> resumable flag (value ignored) | |
4845 | * (optional) "cleanup_fd" -> cleanup-on-exit file descriptor | |
4846 | * (optional) "action_handle" -> handle for this guid/ds mapping | |
b83a0e2d | 4847 | * (optional) "hidden_args" -> { "wkeydata" -> value } |
43e52edd BB |
4848 | * } |
4849 | * | |
4850 | * outnvl: { | |
4851 | * "read_bytes" -> number of bytes read | |
4852 | * "error_flags" -> zprop_errflags_t | |
4853 | * "action_handle" -> handle for this guid/ds mapping | |
4854 | * "errors" -> error for each unapplied received property (nvlist) | |
4855 | * } | |
4856 | */ | |
b83a0e2d DB |
4857 | static const zfs_ioc_key_t zfs_keys_recv_new[] = { |
4858 | {"snapname", DATA_TYPE_STRING, 0}, | |
4859 | {"props", DATA_TYPE_NVLIST, ZK_OPTIONAL}, | |
4860 | {"localprops", DATA_TYPE_NVLIST, ZK_OPTIONAL}, | |
4861 | {"origin", DATA_TYPE_STRING, ZK_OPTIONAL}, | |
4862 | {"begin_record", DATA_TYPE_BYTE_ARRAY, 0}, | |
4863 | {"input_fd", DATA_TYPE_INT32, 0}, | |
4864 | {"force", DATA_TYPE_BOOLEAN, ZK_OPTIONAL}, | |
4865 | {"resumable", DATA_TYPE_BOOLEAN, ZK_OPTIONAL}, | |
4866 | {"cleanup_fd", DATA_TYPE_INT32, ZK_OPTIONAL}, | |
4867 | {"action_handle", DATA_TYPE_UINT64, ZK_OPTIONAL}, | |
4868 | {"hidden_args", DATA_TYPE_NVLIST, ZK_OPTIONAL}, | |
4869 | }; | |
4870 | ||
43e52edd BB |
4871 | static int |
4872 | zfs_ioc_recv_new(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) | |
4873 | { | |
4874 | dmu_replay_record_t *begin_record; | |
4875 | uint_t begin_record_size; | |
4876 | nvlist_t *errors = NULL; | |
a3eeab2d | 4877 | nvlist_t *recvprops = NULL; |
4878 | nvlist_t *localprops = NULL; | |
d9c460a0 | 4879 | nvlist_t *hidden_args = NULL; |
b83a0e2d | 4880 | char *snapname; |
43e52edd BB |
4881 | char *origin = NULL; |
4882 | char *tosnap; | |
eca7b760 | 4883 | char tofs[ZFS_MAX_DATASET_NAME_LEN]; |
43e52edd BB |
4884 | boolean_t force; |
4885 | boolean_t resumable; | |
4886 | uint64_t action_handle = 0; | |
4887 | uint64_t read_bytes = 0; | |
4888 | uint64_t errflags = 0; | |
4889 | int input_fd = -1; | |
4890 | int cleanup_fd = -1; | |
4891 | int error; | |
4892 | ||
b83a0e2d | 4893 | snapname = fnvlist_lookup_string(innvl, "snapname"); |
43e52edd BB |
4894 | |
4895 | if (dataset_namecheck(snapname, NULL, NULL) != 0 || | |
4896 | strchr(snapname, '@') == NULL || | |
4897 | strchr(snapname, '%')) | |
4898 | return (SET_ERROR(EINVAL)); | |
4899 | ||
4900 | (void) strcpy(tofs, snapname); | |
4901 | tosnap = strchr(tofs, '@'); | |
4902 | *tosnap++ = '\0'; | |
4903 | ||
4904 | error = nvlist_lookup_string(innvl, "origin", &origin); | |
4905 | if (error && error != ENOENT) | |
4906 | return (error); | |
4907 | ||
4908 | error = nvlist_lookup_byte_array(innvl, "begin_record", | |
02730c33 | 4909 | (uchar_t **)&begin_record, &begin_record_size); |
43e52edd BB |
4910 | if (error != 0 || begin_record_size != sizeof (*begin_record)) |
4911 | return (SET_ERROR(EINVAL)); | |
4912 | ||
b83a0e2d | 4913 | input_fd = fnvlist_lookup_int32(innvl, "input_fd"); |
43e52edd BB |
4914 | |
4915 | force = nvlist_exists(innvl, "force"); | |
4916 | resumable = nvlist_exists(innvl, "resumable"); | |
4917 | ||
4918 | error = nvlist_lookup_int32(innvl, "cleanup_fd", &cleanup_fd); | |
4919 | if (error && error != ENOENT) | |
4920 | return (error); | |
4921 | ||
4922 | error = nvlist_lookup_uint64(innvl, "action_handle", &action_handle); | |
4923 | if (error && error != ENOENT) | |
4924 | return (error); | |
4925 | ||
a3eeab2d | 4926 | /* we still use "props" here for backwards compatibility */ |
4927 | error = nvlist_lookup_nvlist(innvl, "props", &recvprops); | |
43e52edd BB |
4928 | if (error && error != ENOENT) |
4929 | return (error); | |
4930 | ||
a3eeab2d | 4931 | error = nvlist_lookup_nvlist(innvl, "localprops", &localprops); |
4932 | if (error && error != ENOENT) | |
4933 | return (error); | |
4934 | ||
d9c460a0 TC |
4935 | error = nvlist_lookup_nvlist(innvl, ZPOOL_HIDDEN_ARGS, &hidden_args); |
4936 | if (error && error != ENOENT) | |
4937 | return (error); | |
4938 | ||
a3eeab2d | 4939 | error = zfs_ioc_recv_impl(tofs, tosnap, origin, recvprops, localprops, |
d9c460a0 TC |
4940 | hidden_args, force, resumable, input_fd, begin_record, cleanup_fd, |
4941 | &read_bytes, &errflags, &action_handle, &errors); | |
43e52edd BB |
4942 | |
4943 | fnvlist_add_uint64(outnvl, "read_bytes", read_bytes); | |
4944 | fnvlist_add_uint64(outnvl, "error_flags", errflags); | |
4945 | fnvlist_add_uint64(outnvl, "action_handle", action_handle); | |
4946 | fnvlist_add_nvlist(outnvl, "errors", errors); | |
4947 | ||
4948 | nvlist_free(errors); | |
a3eeab2d | 4949 | nvlist_free(recvprops); |
4950 | nvlist_free(localprops); | |
43e52edd BB |
4951 | |
4952 | return (error); | |
4953 | } | |
4954 | ||
34dc7c2f BB |
4955 | /* |
4956 | * inputs: | |
4957 | * zc_name name of snapshot to send | |
34dc7c2f | 4958 | * zc_cookie file descriptor to send stream to |
572e2857 BB |
4959 | * zc_obj fromorigin flag (mutually exclusive with zc_fromobj) |
4960 | * zc_sendobj objsetid of snapshot to send | |
4961 | * zc_fromobj objsetid of incremental fromsnap (may be zero) | |
330d06f9 MA |
4962 | * zc_guid if set, estimate size of stream only. zc_cookie is ignored. |
4963 | * output size in zc_objset_type. | |
f1512ee6 | 4964 | * zc_flags lzc_send_flags |
34dc7c2f | 4965 | * |
da536844 MA |
4966 | * outputs: |
4967 | * zc_objset_type estimated size, if zc_guid is set | |
cf7684bc | 4968 | * |
4969 | * NOTE: This is no longer the preferred interface, any new functionality | |
4970 | * should be added to zfs_ioc_send_new() instead. | |
34dc7c2f BB |
4971 | */ |
4972 | static int | |
4973 | zfs_ioc_send(zfs_cmd_t *zc) | |
4974 | { | |
34dc7c2f BB |
4975 | int error; |
4976 | offset_t off; | |
330d06f9 | 4977 | boolean_t estimate = (zc->zc_guid != 0); |
9b67f605 | 4978 | boolean_t embedok = (zc->zc_flags & 0x1); |
f1512ee6 | 4979 | boolean_t large_block_ok = (zc->zc_flags & 0x2); |
2aa34383 | 4980 | boolean_t compressok = (zc->zc_flags & 0x4); |
b5256303 | 4981 | boolean_t rawok = (zc->zc_flags & 0x8); |
34dc7c2f | 4982 | |
13fe0198 MA |
4983 | if (zc->zc_obj != 0) { |
4984 | dsl_pool_t *dp; | |
4985 | dsl_dataset_t *tosnap; | |
34dc7c2f | 4986 | |
13fe0198 MA |
4987 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
4988 | if (error != 0) | |
572e2857 | 4989 | return (error); |
13fe0198 MA |
4990 | |
4991 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap); | |
4992 | if (error != 0) { | |
4993 | dsl_pool_rele(dp, FTAG); | |
34dc7c2f BB |
4994 | return (error); |
4995 | } | |
13fe0198 MA |
4996 | |
4997 | if (dsl_dir_is_clone(tosnap->ds_dir)) | |
d683ddbb JG |
4998 | zc->zc_fromobj = |
4999 | dsl_dir_phys(tosnap->ds_dir)->dd_origin_obj; | |
13fe0198 MA |
5000 | dsl_dataset_rele(tosnap, FTAG); |
5001 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
5002 | } |
5003 | ||
13fe0198 MA |
5004 | if (estimate) { |
5005 | dsl_pool_t *dp; | |
5006 | dsl_dataset_t *tosnap; | |
5007 | dsl_dataset_t *fromsnap = NULL; | |
5008 | ||
5009 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); | |
5010 | if (error != 0) | |
5011 | return (error); | |
6f1ffb06 | 5012 | |
b5256303 TC |
5013 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, |
5014 | FTAG, &tosnap); | |
13fe0198 MA |
5015 | if (error != 0) { |
5016 | dsl_pool_rele(dp, FTAG); | |
5017 | return (error); | |
6f1ffb06 MA |
5018 | } |
5019 | ||
13fe0198 MA |
5020 | if (zc->zc_fromobj != 0) { |
5021 | error = dsl_dataset_hold_obj(dp, zc->zc_fromobj, | |
5022 | FTAG, &fromsnap); | |
5023 | if (error != 0) { | |
5024 | dsl_dataset_rele(tosnap, FTAG); | |
5025 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
5026 | return (error); |
5027 | } | |
5028 | } | |
34dc7c2f | 5029 | |
b5256303 | 5030 | error = dmu_send_estimate(tosnap, fromsnap, compressok || rawok, |
330d06f9 | 5031 | &zc->zc_objset_type); |
13fe0198 MA |
5032 | |
5033 | if (fromsnap != NULL) | |
5034 | dsl_dataset_rele(fromsnap, FTAG); | |
5035 | dsl_dataset_rele(tosnap, FTAG); | |
5036 | dsl_pool_rele(dp, FTAG); | |
330d06f9 MA |
5037 | } else { |
5038 | file_t *fp = getf(zc->zc_cookie); | |
13fe0198 | 5039 | if (fp == NULL) |
2e528b49 | 5040 | return (SET_ERROR(EBADF)); |
34dc7c2f | 5041 | |
330d06f9 | 5042 | off = fp->f_offset; |
13fe0198 | 5043 | error = dmu_send_obj(zc->zc_name, zc->zc_sendobj, |
b5256303 | 5044 | zc->zc_fromobj, embedok, large_block_ok, compressok, rawok, |
f1512ee6 | 5045 | zc->zc_cookie, fp->f_vnode, &off); |
34dc7c2f | 5046 | |
330d06f9 MA |
5047 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) |
5048 | fp->f_offset = off; | |
5049 | releasef(zc->zc_cookie); | |
5050 | } | |
34dc7c2f BB |
5051 | return (error); |
5052 | } | |
5053 | ||
37abac6d BP |
5054 | /* |
5055 | * inputs: | |
5056 | * zc_name name of snapshot on which to report progress | |
5057 | * zc_cookie file descriptor of send stream | |
5058 | * | |
5059 | * outputs: | |
5060 | * zc_cookie number of bytes written in send stream thus far | |
5061 | */ | |
5062 | static int | |
5063 | zfs_ioc_send_progress(zfs_cmd_t *zc) | |
5064 | { | |
13fe0198 | 5065 | dsl_pool_t *dp; |
37abac6d BP |
5066 | dsl_dataset_t *ds; |
5067 | dmu_sendarg_t *dsp = NULL; | |
5068 | int error; | |
5069 | ||
13fe0198 MA |
5070 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
5071 | if (error != 0) | |
37abac6d BP |
5072 | return (error); |
5073 | ||
13fe0198 MA |
5074 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &ds); |
5075 | if (error != 0) { | |
5076 | dsl_pool_rele(dp, FTAG); | |
5077 | return (error); | |
5078 | } | |
5079 | ||
37abac6d BP |
5080 | mutex_enter(&ds->ds_sendstream_lock); |
5081 | ||
5082 | /* | |
5083 | * Iterate over all the send streams currently active on this dataset. | |
5084 | * If there's one which matches the specified file descriptor _and_ the | |
5085 | * stream was started by the current process, return the progress of | |
5086 | * that stream. | |
5087 | */ | |
5088 | ||
5089 | for (dsp = list_head(&ds->ds_sendstreams); dsp != NULL; | |
5090 | dsp = list_next(&ds->ds_sendstreams, dsp)) { | |
5091 | if (dsp->dsa_outfd == zc->zc_cookie && | |
5092 | dsp->dsa_proc->group_leader == curproc->group_leader) | |
5093 | break; | |
5094 | } | |
5095 | ||
5096 | if (dsp != NULL) | |
5097 | zc->zc_cookie = *(dsp->dsa_off); | |
5098 | else | |
2e528b49 | 5099 | error = SET_ERROR(ENOENT); |
37abac6d BP |
5100 | |
5101 | mutex_exit(&ds->ds_sendstream_lock); | |
5102 | dsl_dataset_rele(ds, FTAG); | |
13fe0198 | 5103 | dsl_pool_rele(dp, FTAG); |
37abac6d BP |
5104 | return (error); |
5105 | } | |
5106 | ||
34dc7c2f BB |
5107 | static int |
5108 | zfs_ioc_inject_fault(zfs_cmd_t *zc) | |
5109 | { | |
5110 | int id, error; | |
5111 | ||
5112 | error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id, | |
5113 | &zc->zc_inject_record); | |
5114 | ||
5115 | if (error == 0) | |
5116 | zc->zc_guid = (uint64_t)id; | |
5117 | ||
5118 | return (error); | |
5119 | } | |
5120 | ||
5121 | static int | |
5122 | zfs_ioc_clear_fault(zfs_cmd_t *zc) | |
5123 | { | |
5124 | return (zio_clear_fault((int)zc->zc_guid)); | |
5125 | } | |
5126 | ||
5127 | static int | |
5128 | zfs_ioc_inject_list_next(zfs_cmd_t *zc) | |
5129 | { | |
5130 | int id = (int)zc->zc_guid; | |
5131 | int error; | |
5132 | ||
5133 | error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name), | |
5134 | &zc->zc_inject_record); | |
5135 | ||
5136 | zc->zc_guid = id; | |
5137 | ||
5138 | return (error); | |
5139 | } | |
5140 | ||
5141 | static int | |
5142 | zfs_ioc_error_log(zfs_cmd_t *zc) | |
5143 | { | |
5144 | spa_t *spa; | |
5145 | int error; | |
5146 | size_t count = (size_t)zc->zc_nvlist_dst_size; | |
5147 | ||
5148 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
5149 | return (error); | |
5150 | ||
5151 | error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst, | |
5152 | &count); | |
5153 | if (error == 0) | |
5154 | zc->zc_nvlist_dst_size = count; | |
5155 | else | |
5156 | zc->zc_nvlist_dst_size = spa_get_errlog_size(spa); | |
5157 | ||
5158 | spa_close(spa, FTAG); | |
5159 | ||
5160 | return (error); | |
5161 | } | |
5162 | ||
5163 | static int | |
5164 | zfs_ioc_clear(zfs_cmd_t *zc) | |
5165 | { | |
5166 | spa_t *spa; | |
5167 | vdev_t *vd; | |
34dc7c2f BB |
5168 | int error; |
5169 | ||
34dc7c2f | 5170 | /* |
b128c09f | 5171 | * On zpool clear we also fix up missing slogs |
34dc7c2f | 5172 | */ |
b128c09f BB |
5173 | mutex_enter(&spa_namespace_lock); |
5174 | spa = spa_lookup(zc->zc_name); | |
5175 | if (spa == NULL) { | |
5176 | mutex_exit(&spa_namespace_lock); | |
2e528b49 | 5177 | return (SET_ERROR(EIO)); |
b128c09f | 5178 | } |
428870ff | 5179 | if (spa_get_log_state(spa) == SPA_LOG_MISSING) { |
b128c09f | 5180 | /* we need to let spa_open/spa_load clear the chains */ |
428870ff | 5181 | spa_set_log_state(spa, SPA_LOG_CLEAR); |
34dc7c2f | 5182 | } |
428870ff | 5183 | spa->spa_last_open_failed = 0; |
b128c09f | 5184 | mutex_exit(&spa_namespace_lock); |
34dc7c2f | 5185 | |
428870ff BB |
5186 | if (zc->zc_cookie & ZPOOL_NO_REWIND) { |
5187 | error = spa_open(zc->zc_name, &spa, FTAG); | |
5188 | } else { | |
5189 | nvlist_t *policy; | |
5190 | nvlist_t *config = NULL; | |
5191 | ||
b8864a23 | 5192 | if (zc->zc_nvlist_src == 0) |
2e528b49 | 5193 | return (SET_ERROR(EINVAL)); |
428870ff BB |
5194 | |
5195 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
5196 | zc->zc_nvlist_src_size, zc->zc_iflags, &policy)) == 0) { | |
5197 | error = spa_open_rewind(zc->zc_name, &spa, FTAG, | |
5198 | policy, &config); | |
5199 | if (config != NULL) { | |
572e2857 BB |
5200 | int err; |
5201 | ||
5202 | if ((err = put_nvlist(zc, config)) != 0) | |
5203 | error = err; | |
428870ff BB |
5204 | nvlist_free(config); |
5205 | } | |
5206 | nvlist_free(policy); | |
5207 | } | |
5208 | } | |
5209 | ||
13fe0198 | 5210 | if (error != 0) |
b128c09f BB |
5211 | return (error); |
5212 | ||
428870ff | 5213 | spa_vdev_state_enter(spa, SCL_NONE); |
34dc7c2f BB |
5214 | |
5215 | if (zc->zc_guid == 0) { | |
5216 | vd = NULL; | |
b128c09f BB |
5217 | } else { |
5218 | vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE); | |
34dc7c2f | 5219 | if (vd == NULL) { |
b128c09f | 5220 | (void) spa_vdev_state_exit(spa, NULL, ENODEV); |
34dc7c2f | 5221 | spa_close(spa, FTAG); |
2e528b49 | 5222 | return (SET_ERROR(ENODEV)); |
34dc7c2f BB |
5223 | } |
5224 | } | |
5225 | ||
b128c09f BB |
5226 | vdev_clear(spa, vd); |
5227 | ||
3f759c0c BB |
5228 | (void) spa_vdev_state_exit(spa, spa_suspended(spa) ? |
5229 | NULL : spa->spa_root_vdev, 0); | |
34dc7c2f | 5230 | |
b128c09f BB |
5231 | /* |
5232 | * Resume any suspended I/Os. | |
5233 | */ | |
9babb374 | 5234 | if (zio_resume(spa) != 0) |
2e528b49 | 5235 | error = SET_ERROR(EIO); |
34dc7c2f BB |
5236 | |
5237 | spa_close(spa, FTAG); | |
5238 | ||
9babb374 | 5239 | return (error); |
34dc7c2f BB |
5240 | } |
5241 | ||
d3f2cd7e AB |
5242 | /* |
5243 | * Reopen all the vdevs associated with the pool. | |
5244 | * | |
5245 | * innvl: { | |
5246 | * "scrub_restart" -> when true and scrub is running, allow to restart | |
5247 | * scrub as the side effect of the reopen (boolean). | |
5248 | * } | |
5249 | * | |
5250 | * outnvl is unused | |
5251 | */ | |
b83a0e2d DB |
5252 | static const zfs_ioc_key_t zfs_keys_pool_reopen[] = { |
5253 | {"scrub_restart", DATA_TYPE_BOOLEAN_VALUE, 0}, | |
5254 | }; | |
5255 | ||
d3f2cd7e | 5256 | /* ARGSUSED */ |
1bd201e7 | 5257 | static int |
d3f2cd7e | 5258 | zfs_ioc_pool_reopen(const char *pool, nvlist_t *innvl, nvlist_t *outnvl) |
1bd201e7 CS |
5259 | { |
5260 | spa_t *spa; | |
5261 | int error; | |
d3f2cd7e | 5262 | boolean_t scrub_restart = B_TRUE; |
1bd201e7 | 5263 | |
d3f2cd7e | 5264 | if (innvl) { |
b83a0e2d DB |
5265 | scrub_restart = fnvlist_lookup_boolean_value(innvl, |
5266 | "scrub_restart"); | |
d3f2cd7e AB |
5267 | } |
5268 | ||
5269 | error = spa_open(pool, &spa, FTAG); | |
13fe0198 | 5270 | if (error != 0) |
1bd201e7 CS |
5271 | return (error); |
5272 | ||
5273 | spa_vdev_state_enter(spa, SCL_NONE); | |
65947351 GW |
5274 | |
5275 | /* | |
d3f2cd7e AB |
5276 | * If the scrub_restart flag is B_FALSE and a scrub is already |
5277 | * in progress then set spa_scrub_reopen flag to B_TRUE so that | |
5278 | * we don't restart the scrub as a side effect of the reopen. | |
5279 | * Otherwise, let vdev_open() decided if a resilver is required. | |
65947351 | 5280 | */ |
d3f2cd7e AB |
5281 | |
5282 | spa->spa_scrub_reopen = (!scrub_restart && | |
5283 | dsl_scan_scrubbing(spa->spa_dsl_pool)); | |
1bd201e7 | 5284 | vdev_reopen(spa->spa_root_vdev); |
65947351 GW |
5285 | spa->spa_scrub_reopen = B_FALSE; |
5286 | ||
1bd201e7 CS |
5287 | (void) spa_vdev_state_exit(spa, NULL, 0); |
5288 | spa_close(spa, FTAG); | |
5289 | return (0); | |
5290 | } | |
d3f2cd7e | 5291 | |
34dc7c2f BB |
5292 | /* |
5293 | * inputs: | |
5294 | * zc_name name of filesystem | |
34dc7c2f | 5295 | * |
428870ff BB |
5296 | * outputs: |
5297 | * zc_string name of conflicting snapshot, if there is one | |
34dc7c2f BB |
5298 | */ |
5299 | static int | |
5300 | zfs_ioc_promote(zfs_cmd_t *zc) | |
5301 | { | |
d12f91fd GDN |
5302 | dsl_pool_t *dp; |
5303 | dsl_dataset_t *ds, *ods; | |
5304 | char origin[ZFS_MAX_DATASET_NAME_LEN]; | |
34dc7c2f | 5305 | char *cp; |
d12f91fd GDN |
5306 | int error; |
5307 | ||
650258d7 | 5308 | zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; |
5309 | if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0 || | |
5310 | strchr(zc->zc_name, '%')) | |
5311 | return (SET_ERROR(EINVAL)); | |
5312 | ||
d12f91fd GDN |
5313 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
5314 | if (error != 0) | |
5315 | return (error); | |
5316 | ||
5317 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &ds); | |
5318 | if (error != 0) { | |
5319 | dsl_pool_rele(dp, FTAG); | |
5320 | return (error); | |
5321 | } | |
5322 | ||
5323 | if (!dsl_dir_is_clone(ds->ds_dir)) { | |
5324 | dsl_dataset_rele(ds, FTAG); | |
5325 | dsl_pool_rele(dp, FTAG); | |
5326 | return (SET_ERROR(EINVAL)); | |
5327 | } | |
5328 | ||
5329 | error = dsl_dataset_hold_obj(dp, | |
5330 | dsl_dir_phys(ds->ds_dir)->dd_origin_obj, FTAG, &ods); | |
5331 | if (error != 0) { | |
5332 | dsl_dataset_rele(ds, FTAG); | |
5333 | dsl_pool_rele(dp, FTAG); | |
5334 | return (error); | |
5335 | } | |
5336 | ||
5337 | dsl_dataset_name(ods, origin); | |
5338 | dsl_dataset_rele(ods, FTAG); | |
5339 | dsl_dataset_rele(ds, FTAG); | |
5340 | dsl_pool_rele(dp, FTAG); | |
34dc7c2f BB |
5341 | |
5342 | /* | |
5343 | * We don't need to unmount *all* the origin fs's snapshots, but | |
5344 | * it's easier. | |
5345 | */ | |
d12f91fd | 5346 | cp = strchr(origin, '@'); |
34dc7c2f BB |
5347 | if (cp) |
5348 | *cp = '\0'; | |
d12f91fd | 5349 | (void) dmu_objset_find(origin, |
13fe0198 | 5350 | zfs_unmount_snap_cb, NULL, DS_FIND_SNAPSHOTS); |
428870ff | 5351 | return (dsl_dataset_promote(zc->zc_name, zc->zc_string)); |
34dc7c2f BB |
5352 | } |
5353 | ||
9babb374 | 5354 | /* |
9c5167d1 | 5355 | * Retrieve a single {user|group|project}{used|quota}@... property. |
9babb374 BB |
5356 | * |
5357 | * inputs: | |
5358 | * zc_name name of filesystem | |
5359 | * zc_objset_type zfs_userquota_prop_t | |
5360 | * zc_value domain name (eg. "S-1-234-567-89") | |
5361 | * zc_guid RID/UID/GID | |
5362 | * | |
5363 | * outputs: | |
5364 | * zc_cookie property value | |
5365 | */ | |
5366 | static int | |
5367 | zfs_ioc_userspace_one(zfs_cmd_t *zc) | |
5368 | { | |
0037b49e | 5369 | zfsvfs_t *zfsvfs; |
9babb374 BB |
5370 | int error; |
5371 | ||
5372 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
2e528b49 | 5373 | return (SET_ERROR(EINVAL)); |
9babb374 | 5374 | |
f298b24d | 5375 | error = zfsvfs_hold(zc->zc_name, FTAG, &zfsvfs, B_FALSE); |
13fe0198 | 5376 | if (error != 0) |
9babb374 BB |
5377 | return (error); |
5378 | ||
0037b49e | 5379 | error = zfs_userspace_one(zfsvfs, |
9babb374 | 5380 | zc->zc_objset_type, zc->zc_value, zc->zc_guid, &zc->zc_cookie); |
f298b24d | 5381 | zfsvfs_rele(zfsvfs, FTAG); |
9babb374 BB |
5382 | |
5383 | return (error); | |
5384 | } | |
5385 | ||
5386 | /* | |
5387 | * inputs: | |
5388 | * zc_name name of filesystem | |
5389 | * zc_cookie zap cursor | |
5390 | * zc_objset_type zfs_userquota_prop_t | |
5391 | * zc_nvlist_dst[_size] buffer to fill (not really an nvlist) | |
5392 | * | |
5393 | * outputs: | |
5394 | * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t) | |
5395 | * zc_cookie zap cursor | |
5396 | */ | |
5397 | static int | |
5398 | zfs_ioc_userspace_many(zfs_cmd_t *zc) | |
5399 | { | |
0037b49e | 5400 | zfsvfs_t *zfsvfs; |
428870ff BB |
5401 | int bufsize = zc->zc_nvlist_dst_size; |
5402 | ||
5403 | if (bufsize <= 0) | |
2e528b49 | 5404 | return (SET_ERROR(ENOMEM)); |
9babb374 | 5405 | |
1c27024e | 5406 | int error = zfsvfs_hold(zc->zc_name, FTAG, &zfsvfs, B_FALSE); |
13fe0198 | 5407 | if (error != 0) |
9babb374 BB |
5408 | return (error); |
5409 | ||
1c27024e | 5410 | void *buf = vmem_alloc(bufsize, KM_SLEEP); |
9babb374 | 5411 | |
0037b49e | 5412 | error = zfs_userspace_many(zfsvfs, zc->zc_objset_type, &zc->zc_cookie, |
9babb374 BB |
5413 | buf, &zc->zc_nvlist_dst_size); |
5414 | ||
5415 | if (error == 0) { | |
5416 | error = xcopyout(buf, | |
5417 | (void *)(uintptr_t)zc->zc_nvlist_dst, | |
5418 | zc->zc_nvlist_dst_size); | |
5419 | } | |
2b8cad61 | 5420 | vmem_free(buf, bufsize); |
f298b24d | 5421 | zfsvfs_rele(zfsvfs, FTAG); |
9babb374 BB |
5422 | |
5423 | return (error); | |
5424 | } | |
5425 | ||
5426 | /* | |
5427 | * inputs: | |
5428 | * zc_name name of filesystem | |
5429 | * | |
5430 | * outputs: | |
5431 | * none | |
5432 | */ | |
5433 | static int | |
5434 | zfs_ioc_userspace_upgrade(zfs_cmd_t *zc) | |
5435 | { | |
5436 | objset_t *os; | |
428870ff | 5437 | int error = 0; |
0037b49e | 5438 | zfsvfs_t *zfsvfs; |
9babb374 | 5439 | |
f298b24d | 5440 | if (getzfsvfs(zc->zc_name, &zfsvfs) == 0) { |
0037b49e | 5441 | if (!dmu_objset_userused_enabled(zfsvfs->z_os)) { |
9babb374 BB |
5442 | /* |
5443 | * If userused is not enabled, it may be because the | |
5444 | * objset needs to be closed & reopened (to grow the | |
5445 | * objset_phys_t). Suspend/resume the fs will do that. | |
5446 | */ | |
5e00213e | 5447 | dsl_dataset_t *ds, *newds; |
ec923db2 | 5448 | |
0037b49e BB |
5449 | ds = dmu_objset_ds(zfsvfs->z_os); |
5450 | error = zfs_suspend_fs(zfsvfs); | |
831baf06 | 5451 | if (error == 0) { |
5e00213e | 5452 | dmu_objset_refresh_ownership(ds, &newds, |
b5256303 | 5453 | B_TRUE, zfsvfs); |
5e00213e | 5454 | error = zfs_resume_fs(zfsvfs, newds); |
831baf06 | 5455 | } |
9babb374 BB |
5456 | } |
5457 | if (error == 0) | |
0037b49e BB |
5458 | error = dmu_objset_userspace_upgrade(zfsvfs->z_os); |
5459 | deactivate_super(zfsvfs->z_sb); | |
9babb374 | 5460 | } else { |
428870ff | 5461 | /* XXX kind of reading contents without owning */ |
b5256303 | 5462 | error = dmu_objset_hold_flags(zc->zc_name, B_TRUE, FTAG, &os); |
13fe0198 | 5463 | if (error != 0) |
9babb374 BB |
5464 | return (error); |
5465 | ||
5466 | error = dmu_objset_userspace_upgrade(os); | |
b5256303 | 5467 | dmu_objset_rele_flags(os, B_TRUE, FTAG); |
9babb374 BB |
5468 | } |
5469 | ||
5470 | return (error); | |
5471 | } | |
5472 | ||
1de321e6 JX |
5473 | /* |
5474 | * inputs: | |
5475 | * zc_name name of filesystem | |
5476 | * | |
5477 | * outputs: | |
5478 | * none | |
5479 | */ | |
5480 | static int | |
9c5167d1 | 5481 | zfs_ioc_id_quota_upgrade(zfs_cmd_t *zc) |
1de321e6 JX |
5482 | { |
5483 | objset_t *os; | |
5484 | int error; | |
5485 | ||
b5256303 | 5486 | error = dmu_objset_hold_flags(zc->zc_name, B_TRUE, FTAG, &os); |
1de321e6 JX |
5487 | if (error != 0) |
5488 | return (error); | |
5489 | ||
9c5167d1 NF |
5490 | if (dmu_objset_userobjspace_upgradable(os) || |
5491 | dmu_objset_projectquota_upgradable(os)) { | |
1de321e6 JX |
5492 | mutex_enter(&os->os_upgrade_lock); |
5493 | if (os->os_upgrade_id == 0) { | |
5494 | /* clear potential error code and retry */ | |
5495 | os->os_upgrade_status = 0; | |
5496 | mutex_exit(&os->os_upgrade_lock); | |
5497 | ||
9c5167d1 | 5498 | dmu_objset_id_quota_upgrade(os); |
1de321e6 JX |
5499 | } else { |
5500 | mutex_exit(&os->os_upgrade_lock); | |
5501 | } | |
5502 | ||
c0daec32 AB |
5503 | dsl_pool_rele(dmu_objset_pool(os), FTAG); |
5504 | ||
1de321e6 JX |
5505 | taskq_wait_id(os->os_spa->spa_upgrade_taskq, os->os_upgrade_id); |
5506 | error = os->os_upgrade_status; | |
c0daec32 AB |
5507 | } else { |
5508 | dsl_pool_rele(dmu_objset_pool(os), FTAG); | |
1de321e6 JX |
5509 | } |
5510 | ||
b5256303 | 5511 | dsl_dataset_rele_flags(dmu_objset_ds(os), DS_HOLD_FLAG_DECRYPT, FTAG); |
1de321e6 JX |
5512 | |
5513 | return (error); | |
5514 | } | |
5515 | ||
34dc7c2f BB |
5516 | static int |
5517 | zfs_ioc_share(zfs_cmd_t *zc) | |
5518 | { | |
2e528b49 | 5519 | return (SET_ERROR(ENOSYS)); |
34dc7c2f BB |
5520 | } |
5521 | ||
9babb374 BB |
5522 | ace_t full_access[] = { |
5523 | {(uid_t)-1, ACE_ALL_PERMS, ACE_EVERYONE, 0} | |
5524 | }; | |
5525 | ||
572e2857 BB |
5526 | /* |
5527 | * inputs: | |
5528 | * zc_name name of containing filesystem | |
5529 | * zc_obj object # beyond which we want next in-use object # | |
5530 | * | |
5531 | * outputs: | |
5532 | * zc_obj next in-use object # | |
5533 | */ | |
5534 | static int | |
5535 | zfs_ioc_next_obj(zfs_cmd_t *zc) | |
5536 | { | |
5537 | objset_t *os = NULL; | |
5538 | int error; | |
5539 | ||
5540 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
13fe0198 | 5541 | if (error != 0) |
572e2857 BB |
5542 | return (error); |
5543 | ||
7290cd3c | 5544 | error = dmu_object_next(os, &zc->zc_obj, B_FALSE, 0); |
572e2857 BB |
5545 | |
5546 | dmu_objset_rele(os, FTAG); | |
5547 | return (error); | |
5548 | } | |
5549 | ||
5550 | /* | |
5551 | * inputs: | |
5552 | * zc_name name of filesystem | |
5553 | * zc_value prefix name for snapshot | |
5554 | * zc_cleanup_fd cleanup-on-exit file descriptor for calling process | |
5555 | * | |
5556 | * outputs: | |
6f1ffb06 | 5557 | * zc_value short name of new snapshot |
572e2857 BB |
5558 | */ |
5559 | static int | |
5560 | zfs_ioc_tmp_snapshot(zfs_cmd_t *zc) | |
5561 | { | |
5562 | char *snap_name; | |
13fe0198 | 5563 | char *hold_name; |
572e2857 | 5564 | int error; |
13fe0198 | 5565 | minor_t minor; |
572e2857 | 5566 | |
13fe0198 MA |
5567 | error = zfs_onexit_fd_hold(zc->zc_cleanup_fd, &minor); |
5568 | if (error != 0) | |
572e2857 | 5569 | return (error); |
572e2857 | 5570 | |
13fe0198 MA |
5571 | snap_name = kmem_asprintf("%s-%016llx", zc->zc_value, |
5572 | (u_longlong_t)ddi_get_lbolt64()); | |
5573 | hold_name = kmem_asprintf("%%%s", zc->zc_value); | |
5574 | ||
5575 | error = dsl_dataset_snapshot_tmp(zc->zc_name, snap_name, minor, | |
5576 | hold_name); | |
5577 | if (error == 0) | |
680eada9 | 5578 | (void) strlcpy(zc->zc_value, snap_name, |
5579 | sizeof (zc->zc_value)); | |
572e2857 | 5580 | strfree(snap_name); |
13fe0198 MA |
5581 | strfree(hold_name); |
5582 | zfs_onexit_fd_rele(zc->zc_cleanup_fd); | |
5583 | return (error); | |
572e2857 BB |
5584 | } |
5585 | ||
5586 | /* | |
5587 | * inputs: | |
5588 | * zc_name name of "to" snapshot | |
5589 | * zc_value name of "from" snapshot | |
5590 | * zc_cookie file descriptor to write diff data on | |
5591 | * | |
5592 | * outputs: | |
5593 | * dmu_diff_record_t's to the file descriptor | |
5594 | */ | |
5595 | static int | |
5596 | zfs_ioc_diff(zfs_cmd_t *zc) | |
5597 | { | |
572e2857 BB |
5598 | file_t *fp; |
5599 | offset_t off; | |
5600 | int error; | |
5601 | ||
572e2857 | 5602 | fp = getf(zc->zc_cookie); |
13fe0198 | 5603 | if (fp == NULL) |
2e528b49 | 5604 | return (SET_ERROR(EBADF)); |
572e2857 BB |
5605 | |
5606 | off = fp->f_offset; | |
5607 | ||
13fe0198 | 5608 | error = dmu_diff(zc->zc_name, zc->zc_value, fp->f_vnode, &off); |
572e2857 BB |
5609 | |
5610 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
5611 | fp->f_offset = off; | |
5612 | releasef(zc->zc_cookie); | |
5613 | ||
572e2857 BB |
5614 | return (error); |
5615 | } | |
5616 | ||
9babb374 BB |
5617 | /* |
5618 | * Remove all ACL files in shares dir | |
5619 | */ | |
3c9609b3 | 5620 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
5621 | static int |
5622 | zfs_smb_acl_purge(znode_t *dzp) | |
5623 | { | |
5624 | zap_cursor_t zc; | |
5625 | zap_attribute_t zap; | |
0037b49e | 5626 | zfsvfs_t *zfsvfs = ZTOZSB(dzp); |
9babb374 BB |
5627 | int error; |
5628 | ||
0037b49e | 5629 | for (zap_cursor_init(&zc, zfsvfs->z_os, dzp->z_id); |
9babb374 BB |
5630 | (error = zap_cursor_retrieve(&zc, &zap)) == 0; |
5631 | zap_cursor_advance(&zc)) { | |
5632 | if ((error = VOP_REMOVE(ZTOV(dzp), zap.za_name, kcred, | |
5633 | NULL, 0)) != 0) | |
5634 | break; | |
5635 | } | |
5636 | zap_cursor_fini(&zc); | |
5637 | return (error); | |
5638 | } | |
3c9609b3 | 5639 | #endif /* HAVE_SMB_SHARE */ |
9babb374 BB |
5640 | |
5641 | static int | |
5642 | zfs_ioc_smb_acl(zfs_cmd_t *zc) | |
5643 | { | |
3c9609b3 | 5644 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
5645 | vnode_t *vp; |
5646 | znode_t *dzp; | |
5647 | vnode_t *resourcevp = NULL; | |
5648 | znode_t *sharedir; | |
0037b49e | 5649 | zfsvfs_t *zfsvfs; |
9babb374 BB |
5650 | nvlist_t *nvlist; |
5651 | char *src, *target; | |
5652 | vattr_t vattr; | |
5653 | vsecattr_t vsec; | |
5654 | int error = 0; | |
5655 | ||
5656 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
5657 | NO_FOLLOW, NULL, &vp)) != 0) | |
5658 | return (error); | |
5659 | ||
5660 | /* Now make sure mntpnt and dataset are ZFS */ | |
5661 | ||
5662 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
5663 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
5664 | zc->zc_name) != 0)) { | |
5665 | VN_RELE(vp); | |
2e528b49 | 5666 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
5667 | } |
5668 | ||
5669 | dzp = VTOZ(vp); | |
0037b49e BB |
5670 | zfsvfs = ZTOZSB(dzp); |
5671 | ZFS_ENTER(zfsvfs); | |
9babb374 BB |
5672 | |
5673 | /* | |
5674 | * Create share dir if its missing. | |
5675 | */ | |
0037b49e BB |
5676 | mutex_enter(&zfsvfs->z_lock); |
5677 | if (zfsvfs->z_shares_dir == 0) { | |
9babb374 BB |
5678 | dmu_tx_t *tx; |
5679 | ||
0037b49e | 5680 | tx = dmu_tx_create(zfsvfs->z_os); |
9babb374 BB |
5681 | dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, TRUE, |
5682 | ZFS_SHARES_DIR); | |
5683 | dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL); | |
5684 | error = dmu_tx_assign(tx, TXG_WAIT); | |
13fe0198 | 5685 | if (error != 0) { |
9babb374 BB |
5686 | dmu_tx_abort(tx); |
5687 | } else { | |
0037b49e | 5688 | error = zfs_create_share_dir(zfsvfs, tx); |
9babb374 BB |
5689 | dmu_tx_commit(tx); |
5690 | } | |
13fe0198 | 5691 | if (error != 0) { |
0037b49e | 5692 | mutex_exit(&zfsvfs->z_lock); |
9babb374 | 5693 | VN_RELE(vp); |
0037b49e | 5694 | ZFS_EXIT(zfsvfs); |
9babb374 BB |
5695 | return (error); |
5696 | } | |
5697 | } | |
0037b49e | 5698 | mutex_exit(&zfsvfs->z_lock); |
9babb374 | 5699 | |
0037b49e BB |
5700 | ASSERT(zfsvfs->z_shares_dir); |
5701 | if ((error = zfs_zget(zfsvfs, zfsvfs->z_shares_dir, &sharedir)) != 0) { | |
9babb374 | 5702 | VN_RELE(vp); |
0037b49e | 5703 | ZFS_EXIT(zfsvfs); |
9babb374 BB |
5704 | return (error); |
5705 | } | |
5706 | ||
5707 | switch (zc->zc_cookie) { | |
5708 | case ZFS_SMB_ACL_ADD: | |
5709 | vattr.va_mask = AT_MODE|AT_UID|AT_GID|AT_TYPE; | |
9babb374 BB |
5710 | vattr.va_mode = S_IFREG|0777; |
5711 | vattr.va_uid = 0; | |
5712 | vattr.va_gid = 0; | |
5713 | ||
5714 | vsec.vsa_mask = VSA_ACE; | |
5715 | vsec.vsa_aclentp = &full_access; | |
5716 | vsec.vsa_aclentsz = sizeof (full_access); | |
5717 | vsec.vsa_aclcnt = 1; | |
5718 | ||
5719 | error = VOP_CREATE(ZTOV(sharedir), zc->zc_string, | |
5720 | &vattr, EXCL, 0, &resourcevp, kcred, 0, NULL, &vsec); | |
5721 | if (resourcevp) | |
5722 | VN_RELE(resourcevp); | |
5723 | break; | |
5724 | ||
5725 | case ZFS_SMB_ACL_REMOVE: | |
5726 | error = VOP_REMOVE(ZTOV(sharedir), zc->zc_string, kcred, | |
5727 | NULL, 0); | |
5728 | break; | |
5729 | ||
5730 | case ZFS_SMB_ACL_RENAME: | |
5731 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
5732 | zc->zc_nvlist_src_size, zc->zc_iflags, &nvlist)) != 0) { | |
5733 | VN_RELE(vp); | |
a4d179ef | 5734 | VN_RELE(ZTOV(sharedir)); |
0037b49e | 5735 | ZFS_EXIT(zfsvfs); |
9babb374 BB |
5736 | return (error); |
5737 | } | |
5738 | if (nvlist_lookup_string(nvlist, ZFS_SMB_ACL_SRC, &src) || | |
5739 | nvlist_lookup_string(nvlist, ZFS_SMB_ACL_TARGET, | |
5740 | &target)) { | |
5741 | VN_RELE(vp); | |
5742 | VN_RELE(ZTOV(sharedir)); | |
0037b49e | 5743 | ZFS_EXIT(zfsvfs); |
428870ff | 5744 | nvlist_free(nvlist); |
9babb374 BB |
5745 | return (error); |
5746 | } | |
5747 | error = VOP_RENAME(ZTOV(sharedir), src, ZTOV(sharedir), target, | |
5748 | kcred, NULL, 0); | |
5749 | nvlist_free(nvlist); | |
5750 | break; | |
5751 | ||
5752 | case ZFS_SMB_ACL_PURGE: | |
5753 | error = zfs_smb_acl_purge(sharedir); | |
5754 | break; | |
5755 | ||
5756 | default: | |
2e528b49 | 5757 | error = SET_ERROR(EINVAL); |
9babb374 BB |
5758 | break; |
5759 | } | |
5760 | ||
5761 | VN_RELE(vp); | |
5762 | VN_RELE(ZTOV(sharedir)); | |
5763 | ||
0037b49e | 5764 | ZFS_EXIT(zfsvfs); |
9babb374 BB |
5765 | |
5766 | return (error); | |
325f0235 | 5767 | #else |
2e528b49 | 5768 | return (SET_ERROR(ENOTSUP)); |
3c9609b3 | 5769 | #endif /* HAVE_SMB_SHARE */ |
9babb374 BB |
5770 | } |
5771 | ||
45d1cae3 | 5772 | /* |
13fe0198 MA |
5773 | * innvl: { |
5774 | * "holds" -> { snapname -> holdname (string), ... } | |
5775 | * (optional) "cleanup_fd" -> fd (int32) | |
5776 | * } | |
45d1cae3 | 5777 | * |
13fe0198 MA |
5778 | * outnvl: { |
5779 | * snapname -> error value (int32) | |
5780 | * ... | |
5781 | * } | |
45d1cae3 | 5782 | */ |
b83a0e2d DB |
5783 | static const zfs_ioc_key_t zfs_keys_hold[] = { |
5784 | {"holds", DATA_TYPE_NVLIST, 0}, | |
5785 | {"cleanup_fd", DATA_TYPE_INT32, ZK_OPTIONAL}, | |
5786 | }; | |
5787 | ||
13fe0198 | 5788 | /* ARGSUSED */ |
45d1cae3 | 5789 | static int |
13fe0198 | 5790 | zfs_ioc_hold(const char *pool, nvlist_t *args, nvlist_t *errlist) |
45d1cae3 | 5791 | { |
fc581e05 | 5792 | nvpair_t *pair; |
13fe0198 MA |
5793 | nvlist_t *holds; |
5794 | int cleanup_fd = -1; | |
572e2857 BB |
5795 | int error; |
5796 | minor_t minor = 0; | |
45d1cae3 | 5797 | |
b83a0e2d | 5798 | holds = fnvlist_lookup_nvlist(args, "holds"); |
572e2857 | 5799 | |
fc581e05 JJS |
5800 | /* make sure the user didn't pass us any invalid (empty) tags */ |
5801 | for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL; | |
5802 | pair = nvlist_next_nvpair(holds, pair)) { | |
5803 | char *htag; | |
5804 | ||
5805 | error = nvpair_value_string(pair, &htag); | |
5806 | if (error != 0) | |
5807 | return (SET_ERROR(error)); | |
5808 | ||
5809 | if (strlen(htag) == 0) | |
5810 | return (SET_ERROR(EINVAL)); | |
5811 | } | |
5812 | ||
13fe0198 MA |
5813 | if (nvlist_lookup_int32(args, "cleanup_fd", &cleanup_fd) == 0) { |
5814 | error = zfs_onexit_fd_hold(cleanup_fd, &minor); | |
5815 | if (error != 0) | |
572e2857 | 5816 | return (error); |
572e2857 | 5817 | } |
572e2857 | 5818 | |
13fe0198 MA |
5819 | error = dsl_dataset_user_hold(holds, minor, errlist); |
5820 | if (minor != 0) | |
5821 | zfs_onexit_fd_rele(cleanup_fd); | |
572e2857 | 5822 | return (error); |
45d1cae3 BB |
5823 | } |
5824 | ||
5825 | /* | |
13fe0198 | 5826 | * innvl is not used. |
45d1cae3 | 5827 | * |
13fe0198 MA |
5828 | * outnvl: { |
5829 | * holdname -> time added (uint64 seconds since epoch) | |
5830 | * ... | |
5831 | * } | |
45d1cae3 | 5832 | */ |
b83a0e2d DB |
5833 | static const zfs_ioc_key_t zfs_keys_get_holds[] = { |
5834 | /* no nvl keys */ | |
5835 | }; | |
5836 | ||
13fe0198 | 5837 | /* ARGSUSED */ |
45d1cae3 | 5838 | static int |
13fe0198 | 5839 | zfs_ioc_get_holds(const char *snapname, nvlist_t *args, nvlist_t *outnvl) |
45d1cae3 | 5840 | { |
13fe0198 | 5841 | return (dsl_dataset_get_holds(snapname, outnvl)); |
45d1cae3 BB |
5842 | } |
5843 | ||
5844 | /* | |
13fe0198 MA |
5845 | * innvl: { |
5846 | * snapname -> { holdname, ... } | |
5847 | * ... | |
5848 | * } | |
45d1cae3 | 5849 | * |
13fe0198 MA |
5850 | * outnvl: { |
5851 | * snapname -> error value (int32) | |
5852 | * ... | |
5853 | * } | |
45d1cae3 | 5854 | */ |
b83a0e2d DB |
5855 | static const zfs_ioc_key_t zfs_keys_release[] = { |
5856 | {"<snapname>...", DATA_TYPE_NVLIST, ZK_WILDCARDLIST}, | |
5857 | }; | |
5858 | ||
13fe0198 | 5859 | /* ARGSUSED */ |
45d1cae3 | 5860 | static int |
13fe0198 | 5861 | zfs_ioc_release(const char *pool, nvlist_t *holds, nvlist_t *errlist) |
45d1cae3 | 5862 | { |
13fe0198 | 5863 | return (dsl_dataset_user_release(holds, errlist)); |
45d1cae3 BB |
5864 | } |
5865 | ||
26685276 BB |
5866 | /* |
5867 | * inputs: | |
5868 | * zc_guid flags (ZEVENT_NONBLOCK) | |
9b101a73 | 5869 | * zc_cleanup_fd zevent file descriptor |
26685276 BB |
5870 | * |
5871 | * outputs: | |
5872 | * zc_nvlist_dst next nvlist event | |
5873 | * zc_cookie dropped events since last get | |
26685276 BB |
5874 | */ |
5875 | static int | |
5876 | zfs_ioc_events_next(zfs_cmd_t *zc) | |
5877 | { | |
5878 | zfs_zevent_t *ze; | |
5879 | nvlist_t *event = NULL; | |
5880 | minor_t minor; | |
5881 | uint64_t dropped = 0; | |
5882 | int error; | |
5883 | ||
5884 | error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze); | |
5885 | if (error != 0) | |
5886 | return (error); | |
5887 | ||
5888 | do { | |
baa40d45 | 5889 | error = zfs_zevent_next(ze, &event, |
02730c33 | 5890 | &zc->zc_nvlist_dst_size, &dropped); |
26685276 BB |
5891 | if (event != NULL) { |
5892 | zc->zc_cookie = dropped; | |
5893 | error = put_nvlist(zc, event); | |
baa40d45 | 5894 | nvlist_free(event); |
26685276 BB |
5895 | } |
5896 | ||
5897 | if (zc->zc_guid & ZEVENT_NONBLOCK) | |
5898 | break; | |
5899 | ||
5900 | if ((error == 0) || (error != ENOENT)) | |
5901 | break; | |
5902 | ||
5903 | error = zfs_zevent_wait(ze); | |
13fe0198 | 5904 | if (error != 0) |
26685276 BB |
5905 | break; |
5906 | } while (1); | |
5907 | ||
5908 | zfs_zevent_fd_rele(zc->zc_cleanup_fd); | |
5909 | ||
5910 | return (error); | |
5911 | } | |
5912 | ||
5913 | /* | |
5914 | * outputs: | |
5915 | * zc_cookie cleared events count | |
5916 | */ | |
5917 | static int | |
5918 | zfs_ioc_events_clear(zfs_cmd_t *zc) | |
5919 | { | |
5920 | int count; | |
5921 | ||
5922 | zfs_zevent_drain_all(&count); | |
5923 | zc->zc_cookie = count; | |
5924 | ||
d1d7e268 | 5925 | return (0); |
26685276 BB |
5926 | } |
5927 | ||
75e3ff58 BB |
5928 | /* |
5929 | * inputs: | |
5930 | * zc_guid eid | ZEVENT_SEEK_START | ZEVENT_SEEK_END | |
5931 | * zc_cleanup zevent file descriptor | |
5932 | */ | |
5933 | static int | |
5934 | zfs_ioc_events_seek(zfs_cmd_t *zc) | |
5935 | { | |
5936 | zfs_zevent_t *ze; | |
5937 | minor_t minor; | |
5938 | int error; | |
5939 | ||
5940 | error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze); | |
5941 | if (error != 0) | |
5942 | return (error); | |
5943 | ||
5944 | error = zfs_zevent_seek(ze, zc->zc_guid); | |
5945 | zfs_zevent_fd_rele(zc->zc_cleanup_fd); | |
5946 | ||
5947 | return (error); | |
5948 | } | |
5949 | ||
330d06f9 MA |
5950 | /* |
5951 | * inputs: | |
5952 | * zc_name name of new filesystem or snapshot | |
5953 | * zc_value full name of old snapshot | |
5954 | * | |
5955 | * outputs: | |
5956 | * zc_cookie space in bytes | |
5957 | * zc_objset_type compressed space in bytes | |
5958 | * zc_perm_action uncompressed space in bytes | |
5959 | */ | |
5960 | static int | |
5961 | zfs_ioc_space_written(zfs_cmd_t *zc) | |
5962 | { | |
5963 | int error; | |
13fe0198 | 5964 | dsl_pool_t *dp; |
330d06f9 MA |
5965 | dsl_dataset_t *new, *old; |
5966 | ||
13fe0198 | 5967 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
330d06f9 MA |
5968 | if (error != 0) |
5969 | return (error); | |
13fe0198 MA |
5970 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &new); |
5971 | if (error != 0) { | |
5972 | dsl_pool_rele(dp, FTAG); | |
5973 | return (error); | |
5974 | } | |
5975 | error = dsl_dataset_hold(dp, zc->zc_value, FTAG, &old); | |
330d06f9 MA |
5976 | if (error != 0) { |
5977 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5978 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
5979 | return (error); |
5980 | } | |
5981 | ||
5982 | error = dsl_dataset_space_written(old, new, &zc->zc_cookie, | |
5983 | &zc->zc_objset_type, &zc->zc_perm_action); | |
5984 | dsl_dataset_rele(old, FTAG); | |
5985 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5986 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
5987 | return (error); |
5988 | } | |
5989 | ||
5990 | /* | |
6f1ffb06 MA |
5991 | * innvl: { |
5992 | * "firstsnap" -> snapshot name | |
5993 | * } | |
330d06f9 | 5994 | * |
6f1ffb06 MA |
5995 | * outnvl: { |
5996 | * "used" -> space in bytes | |
5997 | * "compressed" -> compressed space in bytes | |
5998 | * "uncompressed" -> uncompressed space in bytes | |
5999 | * } | |
330d06f9 | 6000 | */ |
b83a0e2d DB |
6001 | static const zfs_ioc_key_t zfs_keys_space_snaps[] = { |
6002 | {"firstsnap", DATA_TYPE_STRING, 0}, | |
6003 | }; | |
6004 | ||
330d06f9 | 6005 | static int |
6f1ffb06 | 6006 | zfs_ioc_space_snaps(const char *lastsnap, nvlist_t *innvl, nvlist_t *outnvl) |
330d06f9 MA |
6007 | { |
6008 | int error; | |
13fe0198 | 6009 | dsl_pool_t *dp; |
330d06f9 | 6010 | dsl_dataset_t *new, *old; |
6f1ffb06 MA |
6011 | char *firstsnap; |
6012 | uint64_t used, comp, uncomp; | |
330d06f9 | 6013 | |
b83a0e2d | 6014 | firstsnap = fnvlist_lookup_string(innvl, "firstsnap"); |
6f1ffb06 | 6015 | |
13fe0198 | 6016 | error = dsl_pool_hold(lastsnap, FTAG, &dp); |
330d06f9 MA |
6017 | if (error != 0) |
6018 | return (error); | |
13fe0198 MA |
6019 | |
6020 | error = dsl_dataset_hold(dp, lastsnap, FTAG, &new); | |
71e2fe41 AG |
6021 | if (error == 0 && !new->ds_is_snapshot) { |
6022 | dsl_dataset_rele(new, FTAG); | |
6023 | error = SET_ERROR(EINVAL); | |
6024 | } | |
13fe0198 MA |
6025 | if (error != 0) { |
6026 | dsl_pool_rele(dp, FTAG); | |
6027 | return (error); | |
6028 | } | |
6029 | error = dsl_dataset_hold(dp, firstsnap, FTAG, &old); | |
71e2fe41 AG |
6030 | if (error == 0 && !old->ds_is_snapshot) { |
6031 | dsl_dataset_rele(old, FTAG); | |
6032 | error = SET_ERROR(EINVAL); | |
6033 | } | |
330d06f9 MA |
6034 | if (error != 0) { |
6035 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 6036 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
6037 | return (error); |
6038 | } | |
6039 | ||
6f1ffb06 | 6040 | error = dsl_dataset_space_wouldfree(old, new, &used, &comp, &uncomp); |
330d06f9 MA |
6041 | dsl_dataset_rele(old, FTAG); |
6042 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 6043 | dsl_pool_rele(dp, FTAG); |
6f1ffb06 MA |
6044 | fnvlist_add_uint64(outnvl, "used", used); |
6045 | fnvlist_add_uint64(outnvl, "compressed", comp); | |
6046 | fnvlist_add_uint64(outnvl, "uncompressed", uncomp); | |
330d06f9 MA |
6047 | return (error); |
6048 | } | |
6049 | ||
34dc7c2f | 6050 | /* |
6f1ffb06 MA |
6051 | * innvl: { |
6052 | * "fd" -> file descriptor to write stream to (int32) | |
6053 | * (optional) "fromsnap" -> full snap name to send an incremental from | |
f1512ee6 MA |
6054 | * (optional) "largeblockok" -> (value ignored) |
6055 | * indicates that blocks > 128KB are permitted | |
9b67f605 MA |
6056 | * (optional) "embedok" -> (value ignored) |
6057 | * presence indicates DRR_WRITE_EMBEDDED records are permitted | |
2aa34383 DK |
6058 | * (optional) "compressok" -> (value ignored) |
6059 | * presence indicates compressed DRR_WRITE records are permitted | |
b5256303 TC |
6060 | * (optional) "rawok" -> (value ignored) |
6061 | * presence indicates raw encrypted records should be used. | |
47dfff3b MA |
6062 | * (optional) "resume_object" and "resume_offset" -> (uint64) |
6063 | * if present, resume send stream from specified object and offset. | |
6f1ffb06 MA |
6064 | * } |
6065 | * | |
6066 | * outnvl is unused | |
34dc7c2f | 6067 | */ |
b83a0e2d DB |
6068 | static const zfs_ioc_key_t zfs_keys_send_new[] = { |
6069 | {"fd", DATA_TYPE_INT32, 0}, | |
6070 | {"fromsnap", DATA_TYPE_STRING, ZK_OPTIONAL}, | |
6071 | {"largeblockok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL}, | |
6072 | {"embedok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL}, | |
6073 | {"compressok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL}, | |
6074 | {"rawok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL}, | |
6075 | {"resume_object", DATA_TYPE_UINT64, ZK_OPTIONAL}, | |
6076 | {"resume_offset", DATA_TYPE_UINT64, ZK_OPTIONAL}, | |
6077 | }; | |
6078 | ||
6f1ffb06 MA |
6079 | /* ARGSUSED */ |
6080 | static int | |
6081 | zfs_ioc_send_new(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) | |
6082 | { | |
6f1ffb06 MA |
6083 | int error; |
6084 | offset_t off; | |
13fe0198 | 6085 | char *fromname = NULL; |
6f1ffb06 | 6086 | int fd; |
13fe0198 | 6087 | file_t *fp; |
f1512ee6 | 6088 | boolean_t largeblockok; |
9b67f605 | 6089 | boolean_t embedok; |
2aa34383 | 6090 | boolean_t compressok; |
b5256303 | 6091 | boolean_t rawok; |
47dfff3b MA |
6092 | uint64_t resumeobj = 0; |
6093 | uint64_t resumeoff = 0; | |
6f1ffb06 | 6094 | |
b83a0e2d | 6095 | fd = fnvlist_lookup_int32(innvl, "fd"); |
6f1ffb06 | 6096 | |
13fe0198 | 6097 | (void) nvlist_lookup_string(innvl, "fromsnap", &fromname); |
6f1ffb06 | 6098 | |
f1512ee6 | 6099 | largeblockok = nvlist_exists(innvl, "largeblockok"); |
9b67f605 | 6100 | embedok = nvlist_exists(innvl, "embedok"); |
2aa34383 | 6101 | compressok = nvlist_exists(innvl, "compressok"); |
b5256303 | 6102 | rawok = nvlist_exists(innvl, "rawok"); |
9b67f605 | 6103 | |
47dfff3b MA |
6104 | (void) nvlist_lookup_uint64(innvl, "resume_object", &resumeobj); |
6105 | (void) nvlist_lookup_uint64(innvl, "resume_offset", &resumeoff); | |
6106 | ||
13fe0198 | 6107 | if ((fp = getf(fd)) == NULL) |
2e528b49 | 6108 | return (SET_ERROR(EBADF)); |
6f1ffb06 MA |
6109 | |
6110 | off = fp->f_offset; | |
2aa34383 | 6111 | error = dmu_send(snapname, fromname, embedok, largeblockok, compressok, |
b5256303 | 6112 | rawok, fd, resumeobj, resumeoff, fp->f_vnode, &off); |
6f1ffb06 MA |
6113 | |
6114 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
6115 | fp->f_offset = off; | |
13fe0198 | 6116 | |
6f1ffb06 | 6117 | releasef(fd); |
6f1ffb06 MA |
6118 | return (error); |
6119 | } | |
6120 | ||
6121 | /* | |
6122 | * Determine approximately how large a zfs send stream will be -- the number | |
6123 | * of bytes that will be written to the fd supplied to zfs_ioc_send_new(). | |
6124 | * | |
6125 | * innvl: { | |
5dc8b736 MG |
6126 | * (optional) "from" -> full snap or bookmark name to send an incremental |
6127 | * from | |
2aa34383 DK |
6128 | * (optional) "largeblockok" -> (value ignored) |
6129 | * indicates that blocks > 128KB are permitted | |
6130 | * (optional) "embedok" -> (value ignored) | |
6131 | * presence indicates DRR_WRITE_EMBEDDED records are permitted | |
6132 | * (optional) "compressok" -> (value ignored) | |
6133 | * presence indicates compressed DRR_WRITE records are permitted | |
cf7684bc | 6134 | * (optional) "rawok" -> (value ignored) |
6135 | * presence indicates raw encrypted records should be used. | |
6f1ffb06 MA |
6136 | * } |
6137 | * | |
6138 | * outnvl: { | |
6139 | * "space" -> bytes of space (uint64) | |
6140 | * } | |
6141 | */ | |
b83a0e2d DB |
6142 | static const zfs_ioc_key_t zfs_keys_send_space[] = { |
6143 | {"from", DATA_TYPE_STRING, ZK_OPTIONAL}, | |
6144 | {"fromsnap", DATA_TYPE_STRING, ZK_OPTIONAL}, | |
6145 | {"largeblockok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL}, | |
6146 | {"embedok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL}, | |
6147 | {"compressok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL}, | |
6148 | {"rawok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL}, | |
6149 | }; | |
6150 | ||
6f1ffb06 MA |
6151 | static int |
6152 | zfs_ioc_send_space(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) | |
6153 | { | |
13fe0198 | 6154 | dsl_pool_t *dp; |
13fe0198 | 6155 | dsl_dataset_t *tosnap; |
6f1ffb06 MA |
6156 | int error; |
6157 | char *fromname; | |
2aa34383 | 6158 | boolean_t compressok; |
b5256303 | 6159 | boolean_t rawok; |
6f1ffb06 MA |
6160 | uint64_t space; |
6161 | ||
13fe0198 MA |
6162 | error = dsl_pool_hold(snapname, FTAG, &dp); |
6163 | if (error != 0) | |
6f1ffb06 MA |
6164 | return (error); |
6165 | ||
13fe0198 MA |
6166 | error = dsl_dataset_hold(dp, snapname, FTAG, &tosnap); |
6167 | if (error != 0) { | |
6168 | dsl_pool_rele(dp, FTAG); | |
6169 | return (error); | |
6170 | } | |
6171 | ||
2aa34383 | 6172 | compressok = nvlist_exists(innvl, "compressok"); |
b5256303 | 6173 | rawok = nvlist_exists(innvl, "rawok"); |
2aa34383 | 6174 | |
5dc8b736 | 6175 | error = nvlist_lookup_string(innvl, "from", &fromname); |
6f1ffb06 | 6176 | if (error == 0) { |
5dc8b736 MG |
6177 | if (strchr(fromname, '@') != NULL) { |
6178 | /* | |
6179 | * If from is a snapshot, hold it and use the more | |
6180 | * efficient dmu_send_estimate to estimate send space | |
6181 | * size using deadlists. | |
6182 | */ | |
6183 | dsl_dataset_t *fromsnap; | |
6184 | error = dsl_dataset_hold(dp, fromname, FTAG, &fromsnap); | |
6185 | if (error != 0) | |
6186 | goto out; | |
b5256303 TC |
6187 | error = dmu_send_estimate(tosnap, fromsnap, |
6188 | compressok || rawok, &space); | |
5dc8b736 MG |
6189 | dsl_dataset_rele(fromsnap, FTAG); |
6190 | } else if (strchr(fromname, '#') != NULL) { | |
6191 | /* | |
6192 | * If from is a bookmark, fetch the creation TXG of the | |
6193 | * snapshot it was created from and use that to find | |
6194 | * blocks that were born after it. | |
6195 | */ | |
6196 | zfs_bookmark_phys_t frombm; | |
6197 | ||
6198 | error = dsl_bookmark_lookup(dp, fromname, tosnap, | |
6199 | &frombm); | |
6200 | if (error != 0) | |
6201 | goto out; | |
6202 | error = dmu_send_estimate_from_txg(tosnap, | |
b5256303 TC |
6203 | frombm.zbm_creation_txg, compressok || rawok, |
6204 | &space); | |
5dc8b736 MG |
6205 | } else { |
6206 | /* | |
6207 | * from is not properly formatted as a snapshot or | |
6208 | * bookmark | |
6209 | */ | |
6210 | error = SET_ERROR(EINVAL); | |
6211 | goto out; | |
6f1ffb06 | 6212 | } |
5dc8b736 | 6213 | } else { |
d8fdfc2d BB |
6214 | /* |
6215 | * If estimating the size of a full send, use dmu_send_estimate. | |
6216 | */ | |
b5256303 TC |
6217 | error = dmu_send_estimate(tosnap, NULL, compressok || rawok, |
6218 | &space); | |
6f1ffb06 MA |
6219 | } |
6220 | ||
6f1ffb06 MA |
6221 | fnvlist_add_uint64(outnvl, "space", space); |
6222 | ||
5dc8b736 | 6223 | out: |
13fe0198 MA |
6224 | dsl_dataset_rele(tosnap, FTAG); |
6225 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
6226 | return (error); |
6227 | } | |
6228 | ||
bec1067d AP |
6229 | /* |
6230 | * Sync the currently open TXG to disk for the specified pool. | |
6231 | * This is somewhat similar to 'zfs_sync()'. | |
6232 | * For cases that do not result in error this ioctl will wait for | |
6233 | * the currently open TXG to commit before returning back to the caller. | |
6234 | * | |
6235 | * innvl: { | |
6236 | * "force" -> when true, force uberblock update even if there is no dirty data. | |
6237 | * In addition this will cause the vdev configuration to be written | |
6238 | * out including updating the zpool cache file. (boolean_t) | |
6239 | * } | |
6240 | * | |
6241 | * onvl is unused | |
6242 | */ | |
b83a0e2d DB |
6243 | static const zfs_ioc_key_t zfs_keys_pool_sync[] = { |
6244 | {"force", DATA_TYPE_BOOLEAN_VALUE, 0}, | |
6245 | }; | |
6246 | ||
bec1067d AP |
6247 | /* ARGSUSED */ |
6248 | static int | |
6249 | zfs_ioc_pool_sync(const char *pool, nvlist_t *innvl, nvlist_t *onvl) | |
6250 | { | |
6251 | int err; | |
05f85a6a | 6252 | boolean_t force = B_FALSE; |
bec1067d AP |
6253 | spa_t *spa; |
6254 | ||
6255 | if ((err = spa_open(pool, &spa, FTAG)) != 0) | |
6256 | return (err); | |
6257 | ||
b83a0e2d DB |
6258 | if (innvl) |
6259 | force = fnvlist_lookup_boolean_value(innvl, "force"); | |
05f85a6a | 6260 | |
bec1067d AP |
6261 | if (force) { |
6262 | spa_config_enter(spa, SCL_CONFIG, FTAG, RW_WRITER); | |
6263 | vdev_config_dirty(spa->spa_root_vdev); | |
6264 | spa_config_exit(spa, SCL_CONFIG, FTAG); | |
6265 | } | |
6266 | txg_wait_synced(spa_get_dsl(spa), 0); | |
b83a0e2d | 6267 | |
bec1067d AP |
6268 | spa_close(spa, FTAG); |
6269 | ||
6270 | return (err); | |
6271 | } | |
6272 | ||
b5256303 TC |
6273 | /* |
6274 | * Load a user's wrapping key into the kernel. | |
6275 | * innvl: { | |
6276 | * "hidden_args" -> { "wkeydata" -> value } | |
6277 | * raw uint8_t array of encryption wrapping key data (32 bytes) | |
6278 | * (optional) "noop" -> (value ignored) | |
6279 | * presence indicated key should only be verified, not loaded | |
6280 | * } | |
6281 | */ | |
b83a0e2d DB |
6282 | static const zfs_ioc_key_t zfs_keys_load_key[] = { |
6283 | {"hidden_args", DATA_TYPE_NVLIST, 0}, | |
6284 | {"noop", DATA_TYPE_BOOLEAN, ZK_OPTIONAL}, | |
6285 | }; | |
6286 | ||
b5256303 TC |
6287 | /* ARGSUSED */ |
6288 | static int | |
6289 | zfs_ioc_load_key(const char *dsname, nvlist_t *innvl, nvlist_t *outnvl) | |
6290 | { | |
6291 | int ret; | |
6292 | dsl_crypto_params_t *dcp = NULL; | |
6293 | nvlist_t *hidden_args; | |
6294 | boolean_t noop = nvlist_exists(innvl, "noop"); | |
6295 | ||
6296 | if (strchr(dsname, '@') != NULL || strchr(dsname, '%') != NULL) { | |
6297 | ret = SET_ERROR(EINVAL); | |
6298 | goto error; | |
6299 | } | |
6300 | ||
b83a0e2d | 6301 | hidden_args = fnvlist_lookup_nvlist(innvl, ZPOOL_HIDDEN_ARGS); |
b5256303 TC |
6302 | |
6303 | ret = dsl_crypto_params_create_nvlist(DCP_CMD_NONE, NULL, | |
6304 | hidden_args, &dcp); | |
6305 | if (ret != 0) | |
6306 | goto error; | |
6307 | ||
6308 | ret = spa_keystore_load_wkey(dsname, dcp, noop); | |
6309 | if (ret != 0) | |
6310 | goto error; | |
6311 | ||
6312 | dsl_crypto_params_free(dcp, noop); | |
6313 | ||
6314 | return (0); | |
6315 | ||
6316 | error: | |
6317 | dsl_crypto_params_free(dcp, B_TRUE); | |
6318 | return (ret); | |
6319 | } | |
6320 | ||
6321 | /* | |
6322 | * Unload a user's wrapping key from the kernel. | |
6323 | * Both innvl and outnvl are unused. | |
6324 | */ | |
b83a0e2d DB |
6325 | static const zfs_ioc_key_t zfs_keys_unload_key[] = { |
6326 | /* no nvl keys */ | |
6327 | }; | |
6328 | ||
b5256303 TC |
6329 | /* ARGSUSED */ |
6330 | static int | |
6331 | zfs_ioc_unload_key(const char *dsname, nvlist_t *innvl, nvlist_t *outnvl) | |
6332 | { | |
6333 | int ret = 0; | |
6334 | ||
6335 | if (strchr(dsname, '@') != NULL || strchr(dsname, '%') != NULL) { | |
6336 | ret = (SET_ERROR(EINVAL)); | |
6337 | goto out; | |
6338 | } | |
6339 | ||
6340 | ret = spa_keystore_unload_wkey(dsname); | |
6341 | if (ret != 0) | |
6342 | goto out; | |
6343 | ||
6344 | out: | |
6345 | return (ret); | |
6346 | } | |
6347 | ||
6348 | /* | |
6349 | * Changes a user's wrapping key used to decrypt a dataset. The keyformat, | |
6350 | * keylocation, pbkdf2salt, and pbkdf2iters properties can also be specified | |
6351 | * here to change how the key is derived in userspace. | |
6352 | * | |
6353 | * innvl: { | |
6354 | * "hidden_args" (optional) -> { "wkeydata" -> value } | |
6355 | * raw uint8_t array of new encryption wrapping key data (32 bytes) | |
6356 | * "props" (optional) -> { prop -> value } | |
6357 | * } | |
6358 | * | |
6359 | * outnvl is unused | |
6360 | */ | |
b83a0e2d DB |
6361 | static const zfs_ioc_key_t zfs_keys_change_key[] = { |
6362 | {"crypt_cmd", DATA_TYPE_UINT64, ZK_OPTIONAL}, | |
6363 | {"hidden_args", DATA_TYPE_NVLIST, ZK_OPTIONAL}, | |
6364 | {"props", DATA_TYPE_NVLIST, ZK_OPTIONAL}, | |
6365 | }; | |
6366 | ||
b5256303 TC |
6367 | /* ARGSUSED */ |
6368 | static int | |
6369 | zfs_ioc_change_key(const char *dsname, nvlist_t *innvl, nvlist_t *outnvl) | |
6370 | { | |
6371 | int ret; | |
6372 | uint64_t cmd = DCP_CMD_NONE; | |
6373 | dsl_crypto_params_t *dcp = NULL; | |
6374 | nvlist_t *args = NULL, *hidden_args = NULL; | |
6375 | ||
6376 | if (strchr(dsname, '@') != NULL || strchr(dsname, '%') != NULL) { | |
6377 | ret = (SET_ERROR(EINVAL)); | |
6378 | goto error; | |
6379 | } | |
6380 | ||
6381 | (void) nvlist_lookup_uint64(innvl, "crypt_cmd", &cmd); | |
6382 | (void) nvlist_lookup_nvlist(innvl, "props", &args); | |
6383 | (void) nvlist_lookup_nvlist(innvl, ZPOOL_HIDDEN_ARGS, &hidden_args); | |
6384 | ||
6385 | ret = dsl_crypto_params_create_nvlist(cmd, args, hidden_args, &dcp); | |
6386 | if (ret != 0) | |
6387 | goto error; | |
6388 | ||
6389 | ret = spa_keystore_change_key(dsname, dcp); | |
6390 | if (ret != 0) | |
6391 | goto error; | |
6392 | ||
6393 | dsl_crypto_params_free(dcp, B_FALSE); | |
6394 | ||
6395 | return (0); | |
6396 | ||
6397 | error: | |
6398 | dsl_crypto_params_free(dcp, B_TRUE); | |
6399 | return (ret); | |
6400 | } | |
6401 | ||
6f1ffb06 MA |
6402 | static zfs_ioc_vec_t zfs_ioc_vec[ZFS_IOC_LAST - ZFS_IOC_FIRST]; |
6403 | ||
6404 | static void | |
6405 | zfs_ioctl_register_legacy(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
6406 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, | |
6407 | boolean_t log_history, zfs_ioc_poolcheck_t pool_check) | |
6408 | { | |
6409 | zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; | |
6410 | ||
6411 | ASSERT3U(ioc, >=, ZFS_IOC_FIRST); | |
6412 | ASSERT3U(ioc, <, ZFS_IOC_LAST); | |
6413 | ASSERT3P(vec->zvec_legacy_func, ==, NULL); | |
6414 | ASSERT3P(vec->zvec_func, ==, NULL); | |
6415 | ||
6416 | vec->zvec_legacy_func = func; | |
6417 | vec->zvec_secpolicy = secpolicy; | |
6418 | vec->zvec_namecheck = namecheck; | |
6419 | vec->zvec_allow_log = log_history; | |
6420 | vec->zvec_pool_check = pool_check; | |
6421 | } | |
6422 | ||
6423 | /* | |
6424 | * See the block comment at the beginning of this file for details on | |
6425 | * each argument to this function. | |
6426 | */ | |
6427 | static void | |
6428 | zfs_ioctl_register(const char *name, zfs_ioc_t ioc, zfs_ioc_func_t *func, | |
6429 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, | |
6430 | zfs_ioc_poolcheck_t pool_check, boolean_t smush_outnvlist, | |
b83a0e2d | 6431 | boolean_t allow_log, const zfs_ioc_key_t *nvl_keys, size_t num_keys) |
6f1ffb06 MA |
6432 | { |
6433 | zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; | |
6434 | ||
6435 | ASSERT3U(ioc, >=, ZFS_IOC_FIRST); | |
6436 | ASSERT3U(ioc, <, ZFS_IOC_LAST); | |
6437 | ASSERT3P(vec->zvec_legacy_func, ==, NULL); | |
6438 | ASSERT3P(vec->zvec_func, ==, NULL); | |
6439 | ||
6440 | /* if we are logging, the name must be valid */ | |
6441 | ASSERT(!allow_log || namecheck != NO_NAME); | |
6442 | ||
6443 | vec->zvec_name = name; | |
6444 | vec->zvec_func = func; | |
6445 | vec->zvec_secpolicy = secpolicy; | |
6446 | vec->zvec_namecheck = namecheck; | |
6447 | vec->zvec_pool_check = pool_check; | |
6448 | vec->zvec_smush_outnvlist = smush_outnvlist; | |
6449 | vec->zvec_allow_log = allow_log; | |
b83a0e2d DB |
6450 | vec->zvec_nvl_keys = nvl_keys; |
6451 | vec->zvec_nvl_key_count = num_keys; | |
6f1ffb06 MA |
6452 | } |
6453 | ||
6454 | static void | |
6455 | zfs_ioctl_register_pool(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
6456 | zfs_secpolicy_func_t *secpolicy, boolean_t log_history, | |
6457 | zfs_ioc_poolcheck_t pool_check) | |
6458 | { | |
6459 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
6460 | POOL_NAME, log_history, pool_check); | |
6461 | } | |
6462 | ||
6463 | static void | |
6464 | zfs_ioctl_register_dataset_nolog(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
6465 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_poolcheck_t pool_check) | |
6466 | { | |
6467 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
6468 | DATASET_NAME, B_FALSE, pool_check); | |
6469 | } | |
6470 | ||
6471 | static void | |
6472 | zfs_ioctl_register_pool_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) | |
6473 | { | |
6474 | zfs_ioctl_register_legacy(ioc, func, zfs_secpolicy_config, | |
6475 | POOL_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
6476 | } | |
6477 | ||
6478 | static void | |
6479 | zfs_ioctl_register_pool_meta(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
6480 | zfs_secpolicy_func_t *secpolicy) | |
6481 | { | |
6482 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
6483 | NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
6484 | } | |
6485 | ||
6486 | static void | |
6487 | zfs_ioctl_register_dataset_read_secpolicy(zfs_ioc_t ioc, | |
6488 | zfs_ioc_legacy_func_t *func, zfs_secpolicy_func_t *secpolicy) | |
6489 | { | |
6490 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
6491 | DATASET_NAME, B_FALSE, POOL_CHECK_SUSPENDED); | |
6492 | } | |
6493 | ||
6494 | static void | |
6495 | zfs_ioctl_register_dataset_read(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) | |
6496 | { | |
6497 | zfs_ioctl_register_dataset_read_secpolicy(ioc, func, | |
6498 | zfs_secpolicy_read); | |
6499 | } | |
6500 | ||
6501 | static void | |
6502 | zfs_ioctl_register_dataset_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
e9aa730c | 6503 | zfs_secpolicy_func_t *secpolicy) |
6f1ffb06 MA |
6504 | { |
6505 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
6506 | DATASET_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
6507 | } | |
6508 | ||
6509 | static void | |
6510 | zfs_ioctl_init(void) | |
6511 | { | |
6512 | zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT, | |
6513 | zfs_ioc_snapshot, zfs_secpolicy_snapshot, POOL_NAME, | |
b83a0e2d DB |
6514 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE, |
6515 | zfs_keys_snapshot, ARRAY_SIZE(zfs_keys_snapshot)); | |
6f1ffb06 MA |
6516 | |
6517 | zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY, | |
6518 | zfs_ioc_log_history, zfs_secpolicy_log_history, NO_NAME, | |
b83a0e2d DB |
6519 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE, |
6520 | zfs_keys_log_history, ARRAY_SIZE(zfs_keys_log_history)); | |
6f1ffb06 MA |
6521 | |
6522 | zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS, | |
6523 | zfs_ioc_space_snaps, zfs_secpolicy_read, DATASET_NAME, | |
b83a0e2d DB |
6524 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE, |
6525 | zfs_keys_space_snaps, ARRAY_SIZE(zfs_keys_space_snaps)); | |
6f1ffb06 MA |
6526 | |
6527 | zfs_ioctl_register("send", ZFS_IOC_SEND_NEW, | |
6528 | zfs_ioc_send_new, zfs_secpolicy_send_new, DATASET_NAME, | |
b83a0e2d DB |
6529 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE, |
6530 | zfs_keys_send_new, ARRAY_SIZE(zfs_keys_send_new)); | |
6f1ffb06 MA |
6531 | |
6532 | zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE, | |
6533 | zfs_ioc_send_space, zfs_secpolicy_read, DATASET_NAME, | |
b83a0e2d DB |
6534 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE, |
6535 | zfs_keys_send_space, ARRAY_SIZE(zfs_keys_send_space)); | |
6f1ffb06 MA |
6536 | |
6537 | zfs_ioctl_register("create", ZFS_IOC_CREATE, | |
6538 | zfs_ioc_create, zfs_secpolicy_create_clone, DATASET_NAME, | |
b83a0e2d DB |
6539 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE, |
6540 | zfs_keys_create, ARRAY_SIZE(zfs_keys_create)); | |
6f1ffb06 MA |
6541 | |
6542 | zfs_ioctl_register("clone", ZFS_IOC_CLONE, | |
6543 | zfs_ioc_clone, zfs_secpolicy_create_clone, DATASET_NAME, | |
b83a0e2d DB |
6544 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE, |
6545 | zfs_keys_clone, ARRAY_SIZE(zfs_keys_clone)); | |
6f1ffb06 | 6546 | |
a1d477c2 MA |
6547 | zfs_ioctl_register("remap", ZFS_IOC_REMAP, |
6548 | zfs_ioc_remap, zfs_secpolicy_remap, DATASET_NAME, | |
b83a0e2d DB |
6549 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_TRUE, |
6550 | zfs_keys_remap, ARRAY_SIZE(zfs_keys_remap)); | |
a1d477c2 | 6551 | |
6f1ffb06 MA |
6552 | zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS, |
6553 | zfs_ioc_destroy_snaps, zfs_secpolicy_destroy_snaps, POOL_NAME, | |
b83a0e2d DB |
6554 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE, |
6555 | zfs_keys_destroy_snaps, ARRAY_SIZE(zfs_keys_destroy_snaps)); | |
6f1ffb06 | 6556 | |
13fe0198 MA |
6557 | zfs_ioctl_register("hold", ZFS_IOC_HOLD, |
6558 | zfs_ioc_hold, zfs_secpolicy_hold, POOL_NAME, | |
b83a0e2d DB |
6559 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE, |
6560 | zfs_keys_hold, ARRAY_SIZE(zfs_keys_hold)); | |
13fe0198 MA |
6561 | zfs_ioctl_register("release", ZFS_IOC_RELEASE, |
6562 | zfs_ioc_release, zfs_secpolicy_release, POOL_NAME, | |
b83a0e2d DB |
6563 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE, |
6564 | zfs_keys_release, ARRAY_SIZE(zfs_keys_release)); | |
13fe0198 MA |
6565 | |
6566 | zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS, | |
6567 | zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME, | |
b83a0e2d DB |
6568 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE, |
6569 | zfs_keys_get_holds, ARRAY_SIZE(zfs_keys_get_holds)); | |
13fe0198 | 6570 | |
46ba1e59 MA |
6571 | zfs_ioctl_register("rollback", ZFS_IOC_ROLLBACK, |
6572 | zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME, | |
b83a0e2d DB |
6573 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_TRUE, |
6574 | zfs_keys_rollback, ARRAY_SIZE(zfs_keys_rollback)); | |
46ba1e59 | 6575 | |
da536844 MA |
6576 | zfs_ioctl_register("bookmark", ZFS_IOC_BOOKMARK, |
6577 | zfs_ioc_bookmark, zfs_secpolicy_bookmark, POOL_NAME, | |
b83a0e2d DB |
6578 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE, |
6579 | zfs_keys_bookmark, ARRAY_SIZE(zfs_keys_bookmark)); | |
da536844 MA |
6580 | |
6581 | zfs_ioctl_register("get_bookmarks", ZFS_IOC_GET_BOOKMARKS, | |
6582 | zfs_ioc_get_bookmarks, zfs_secpolicy_read, DATASET_NAME, | |
b83a0e2d DB |
6583 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE, |
6584 | zfs_keys_get_bookmarks, ARRAY_SIZE(zfs_keys_get_bookmarks)); | |
da536844 MA |
6585 | |
6586 | zfs_ioctl_register("destroy_bookmarks", ZFS_IOC_DESTROY_BOOKMARKS, | |
6587 | zfs_ioc_destroy_bookmarks, zfs_secpolicy_destroy_bookmarks, | |
6588 | POOL_NAME, | |
b83a0e2d DB |
6589 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE, |
6590 | zfs_keys_destroy_bookmarks, | |
6591 | ARRAY_SIZE(zfs_keys_destroy_bookmarks)); | |
da536844 | 6592 | |
43e52edd BB |
6593 | zfs_ioctl_register("receive", ZFS_IOC_RECV_NEW, |
6594 | zfs_ioc_recv_new, zfs_secpolicy_recv_new, DATASET_NAME, | |
b83a0e2d DB |
6595 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE, |
6596 | zfs_keys_recv_new, ARRAY_SIZE(zfs_keys_recv_new)); | |
b5256303 TC |
6597 | zfs_ioctl_register("load-key", ZFS_IOC_LOAD_KEY, |
6598 | zfs_ioc_load_key, zfs_secpolicy_load_key, | |
b83a0e2d DB |
6599 | DATASET_NAME, POOL_CHECK_SUSPENDED, B_TRUE, B_TRUE, |
6600 | zfs_keys_load_key, ARRAY_SIZE(zfs_keys_load_key)); | |
b5256303 TC |
6601 | zfs_ioctl_register("unload-key", ZFS_IOC_UNLOAD_KEY, |
6602 | zfs_ioc_unload_key, zfs_secpolicy_load_key, | |
b83a0e2d DB |
6603 | DATASET_NAME, POOL_CHECK_SUSPENDED, B_TRUE, B_TRUE, |
6604 | zfs_keys_unload_key, ARRAY_SIZE(zfs_keys_unload_key)); | |
b5256303 TC |
6605 | zfs_ioctl_register("change-key", ZFS_IOC_CHANGE_KEY, |
6606 | zfs_ioc_change_key, zfs_secpolicy_change_key, | |
6607 | DATASET_NAME, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, | |
b83a0e2d DB |
6608 | B_TRUE, B_TRUE, zfs_keys_change_key, |
6609 | ARRAY_SIZE(zfs_keys_change_key)); | |
43e52edd | 6610 | |
bec1067d AP |
6611 | zfs_ioctl_register("sync", ZFS_IOC_POOL_SYNC, |
6612 | zfs_ioc_pool_sync, zfs_secpolicy_none, POOL_NAME, | |
b83a0e2d DB |
6613 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE, |
6614 | zfs_keys_pool_sync, ARRAY_SIZE(zfs_keys_pool_sync)); | |
d3f2cd7e AB |
6615 | zfs_ioctl_register("reopen", ZFS_IOC_POOL_REOPEN, zfs_ioc_pool_reopen, |
6616 | zfs_secpolicy_config, POOL_NAME, POOL_CHECK_SUSPENDED, B_TRUE, | |
b83a0e2d | 6617 | B_TRUE, zfs_keys_pool_reopen, ARRAY_SIZE(zfs_keys_pool_reopen)); |
bec1067d | 6618 | |
d99a0153 CW |
6619 | zfs_ioctl_register("channel_program", ZFS_IOC_CHANNEL_PROGRAM, |
6620 | zfs_ioc_channel_program, zfs_secpolicy_config, | |
6621 | POOL_NAME, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, | |
b83a0e2d DB |
6622 | B_TRUE, zfs_keys_channel_program, |
6623 | ARRAY_SIZE(zfs_keys_channel_program)); | |
d99a0153 | 6624 | |
d2734cce SD |
6625 | zfs_ioctl_register("zpool_checkpoint", ZFS_IOC_POOL_CHECKPOINT, |
6626 | zfs_ioc_pool_checkpoint, zfs_secpolicy_config, POOL_NAME, | |
b83a0e2d DB |
6627 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE, |
6628 | zfs_keys_pool_checkpoint, ARRAY_SIZE(zfs_keys_pool_checkpoint)); | |
d2734cce SD |
6629 | |
6630 | zfs_ioctl_register("zpool_discard_checkpoint", | |
6631 | ZFS_IOC_POOL_DISCARD_CHECKPOINT, zfs_ioc_pool_discard_checkpoint, | |
6632 | zfs_secpolicy_config, POOL_NAME, | |
b83a0e2d DB |
6633 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE, |
6634 | zfs_keys_pool_discard_checkpoint, | |
6635 | ARRAY_SIZE(zfs_keys_pool_discard_checkpoint)); | |
d2734cce | 6636 | |
6f1ffb06 MA |
6637 | /* IOCTLS that use the legacy function signature */ |
6638 | ||
6639 | zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE, zfs_ioc_pool_freeze, | |
6640 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_READONLY); | |
6641 | ||
6642 | zfs_ioctl_register_pool(ZFS_IOC_POOL_CREATE, zfs_ioc_pool_create, | |
6643 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); | |
6644 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SCAN, | |
6645 | zfs_ioc_pool_scan); | |
6646 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_UPGRADE, | |
6647 | zfs_ioc_pool_upgrade); | |
6648 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ADD, | |
6649 | zfs_ioc_vdev_add); | |
6650 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_REMOVE, | |
6651 | zfs_ioc_vdev_remove); | |
6652 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SET_STATE, | |
6653 | zfs_ioc_vdev_set_state); | |
6654 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ATTACH, | |
6655 | zfs_ioc_vdev_attach); | |
6656 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_DETACH, | |
6657 | zfs_ioc_vdev_detach); | |
6658 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETPATH, | |
6659 | zfs_ioc_vdev_setpath); | |
6660 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETFRU, | |
6661 | zfs_ioc_vdev_setfru); | |
6662 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SET_PROPS, | |
6663 | zfs_ioc_pool_set_props); | |
6664 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SPLIT, | |
6665 | zfs_ioc_vdev_split); | |
6666 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_REGUID, | |
6667 | zfs_ioc_pool_reguid); | |
6668 | ||
6669 | zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_CONFIGS, | |
6670 | zfs_ioc_pool_configs, zfs_secpolicy_none); | |
6671 | zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_TRYIMPORT, | |
6672 | zfs_ioc_pool_tryimport, zfs_secpolicy_config); | |
6673 | zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_FAULT, | |
6674 | zfs_ioc_inject_fault, zfs_secpolicy_inject); | |
6675 | zfs_ioctl_register_pool_meta(ZFS_IOC_CLEAR_FAULT, | |
6676 | zfs_ioc_clear_fault, zfs_secpolicy_inject); | |
6677 | zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_LIST_NEXT, | |
6678 | zfs_ioc_inject_list_next, zfs_secpolicy_inject); | |
6679 | ||
6680 | /* | |
6681 | * pool destroy, and export don't log the history as part of | |
6682 | * zfsdev_ioctl, but rather zfs_ioc_pool_export | |
6683 | * does the logging of those commands. | |
6684 | */ | |
6685 | zfs_ioctl_register_pool(ZFS_IOC_POOL_DESTROY, zfs_ioc_pool_destroy, | |
87a63dd7 | 6686 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED); |
6f1ffb06 | 6687 | zfs_ioctl_register_pool(ZFS_IOC_POOL_EXPORT, zfs_ioc_pool_export, |
87a63dd7 | 6688 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED); |
6f1ffb06 MA |
6689 | |
6690 | zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS, zfs_ioc_pool_stats, | |
6691 | zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); | |
6692 | zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS, zfs_ioc_pool_get_props, | |
6693 | zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); | |
6694 | ||
6695 | zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG, zfs_ioc_error_log, | |
6696 | zfs_secpolicy_inject, B_FALSE, POOL_CHECK_SUSPENDED); | |
6697 | zfs_ioctl_register_pool(ZFS_IOC_DSOBJ_TO_DSNAME, | |
6698 | zfs_ioc_dsobj_to_dsname, | |
6699 | zfs_secpolicy_diff, B_FALSE, POOL_CHECK_SUSPENDED); | |
6700 | zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_HISTORY, | |
6701 | zfs_ioc_pool_get_history, | |
6702 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED); | |
6703 | ||
6704 | zfs_ioctl_register_pool(ZFS_IOC_POOL_IMPORT, zfs_ioc_pool_import, | |
6705 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); | |
6706 | ||
6707 | zfs_ioctl_register_pool(ZFS_IOC_CLEAR, zfs_ioc_clear, | |
92e43c17 | 6708 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_READONLY); |
6f1ffb06 MA |
6709 | |
6710 | zfs_ioctl_register_dataset_read(ZFS_IOC_SPACE_WRITTEN, | |
6711 | zfs_ioc_space_written); | |
6f1ffb06 MA |
6712 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_RECVD_PROPS, |
6713 | zfs_ioc_objset_recvd_props); | |
6714 | zfs_ioctl_register_dataset_read(ZFS_IOC_NEXT_OBJ, | |
6715 | zfs_ioc_next_obj); | |
6716 | zfs_ioctl_register_dataset_read(ZFS_IOC_GET_FSACL, | |
6717 | zfs_ioc_get_fsacl); | |
6718 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_STATS, | |
6719 | zfs_ioc_objset_stats); | |
6720 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_ZPLPROPS, | |
6721 | zfs_ioc_objset_zplprops); | |
6722 | zfs_ioctl_register_dataset_read(ZFS_IOC_DATASET_LIST_NEXT, | |
6723 | zfs_ioc_dataset_list_next); | |
6724 | zfs_ioctl_register_dataset_read(ZFS_IOC_SNAPSHOT_LIST_NEXT, | |
6725 | zfs_ioc_snapshot_list_next); | |
6726 | zfs_ioctl_register_dataset_read(ZFS_IOC_SEND_PROGRESS, | |
6727 | zfs_ioc_send_progress); | |
6728 | ||
6729 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_DIFF, | |
6730 | zfs_ioc_diff, zfs_secpolicy_diff); | |
6731 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_STATS, | |
6732 | zfs_ioc_obj_to_stats, zfs_secpolicy_diff); | |
6733 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_PATH, | |
6734 | zfs_ioc_obj_to_path, zfs_secpolicy_diff); | |
6735 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_ONE, | |
6736 | zfs_ioc_userspace_one, zfs_secpolicy_userspace_one); | |
6737 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_MANY, | |
6738 | zfs_ioc_userspace_many, zfs_secpolicy_userspace_many); | |
6739 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_SEND, | |
6740 | zfs_ioc_send, zfs_secpolicy_send); | |
6741 | ||
6742 | zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_PROP, zfs_ioc_set_prop, | |
6743 | zfs_secpolicy_none); | |
6744 | zfs_ioctl_register_dataset_modify(ZFS_IOC_DESTROY, zfs_ioc_destroy, | |
6745 | zfs_secpolicy_destroy); | |
6f1ffb06 MA |
6746 | zfs_ioctl_register_dataset_modify(ZFS_IOC_RENAME, zfs_ioc_rename, |
6747 | zfs_secpolicy_rename); | |
6748 | zfs_ioctl_register_dataset_modify(ZFS_IOC_RECV, zfs_ioc_recv, | |
6749 | zfs_secpolicy_recv); | |
6750 | zfs_ioctl_register_dataset_modify(ZFS_IOC_PROMOTE, zfs_ioc_promote, | |
6751 | zfs_secpolicy_promote); | |
6f1ffb06 MA |
6752 | zfs_ioctl_register_dataset_modify(ZFS_IOC_INHERIT_PROP, |
6753 | zfs_ioc_inherit_prop, zfs_secpolicy_inherit_prop); | |
6754 | zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_FSACL, zfs_ioc_set_fsacl, | |
6755 | zfs_secpolicy_set_fsacl); | |
6756 | ||
6757 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_SHARE, zfs_ioc_share, | |
6758 | zfs_secpolicy_share, POOL_CHECK_NONE); | |
6759 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_SMB_ACL, zfs_ioc_smb_acl, | |
6760 | zfs_secpolicy_smb_acl, POOL_CHECK_NONE); | |
6761 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_USERSPACE_UPGRADE, | |
6762 | zfs_ioc_userspace_upgrade, zfs_secpolicy_userspace_upgrade, | |
6763 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
6764 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_TMP_SNAPSHOT, | |
6765 | zfs_ioc_tmp_snapshot, zfs_secpolicy_tmp_snapshot, | |
6766 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
6767 | ||
6768 | /* | |
ba6a2402 | 6769 | * ZoL functions |
6f1ffb06 | 6770 | */ |
6f1ffb06 MA |
6771 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_NEXT, zfs_ioc_events_next, |
6772 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
6773 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_CLEAR, zfs_ioc_events_clear, | |
6774 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
75e3ff58 BB |
6775 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_SEEK, zfs_ioc_events_seek, |
6776 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
6f1ffb06 | 6777 | } |
34dc7c2f | 6778 | |
b83a0e2d DB |
6779 | /* |
6780 | * Verify that for non-legacy ioctls the input nvlist | |
6781 | * pairs match against the expected input. | |
6782 | * | |
6783 | * Possible errors are: | |
6784 | * ZFS_ERR_IOC_ARG_UNAVAIL An unrecognized nvpair was encountered | |
6785 | * ZFS_ERR_IOC_ARG_REQUIRED A required nvpair is missing | |
6786 | * ZFS_ERR_IOC_ARG_BADTYPE Invalid type for nvpair | |
6787 | */ | |
6788 | static int | |
6789 | zfs_check_input_nvpairs(nvlist_t *innvl, const zfs_ioc_vec_t *vec) | |
6790 | { | |
6791 | const zfs_ioc_key_t *nvl_keys = vec->zvec_nvl_keys; | |
6792 | boolean_t required_keys_found = B_FALSE; | |
6793 | ||
6794 | /* | |
6795 | * examine each input pair | |
6796 | */ | |
6797 | for (nvpair_t *pair = nvlist_next_nvpair(innvl, NULL); | |
6798 | pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { | |
6799 | char *name = nvpair_name(pair); | |
6800 | data_type_t type = nvpair_type(pair); | |
6801 | boolean_t identified = B_FALSE; | |
6802 | ||
6803 | /* | |
6804 | * check pair against the documented names and type | |
6805 | */ | |
6806 | for (int k = 0; k < vec->zvec_nvl_key_count; k++) { | |
6807 | /* if not a wild card name, check for an exact match */ | |
6808 | if ((nvl_keys[k].zkey_flags & ZK_WILDCARDLIST) == 0 && | |
6809 | strcmp(nvl_keys[k].zkey_name, name) != 0) | |
6810 | continue; | |
6811 | ||
6812 | identified = B_TRUE; | |
6813 | ||
6814 | if (nvl_keys[k].zkey_type != DATA_TYPE_ANY && | |
6815 | nvl_keys[k].zkey_type != type) { | |
6816 | return (SET_ERROR(ZFS_ERR_IOC_ARG_BADTYPE)); | |
6817 | } | |
6818 | ||
6819 | if (nvl_keys[k].zkey_flags & ZK_OPTIONAL) | |
6820 | continue; | |
6821 | ||
6822 | required_keys_found = B_TRUE; | |
6823 | break; | |
6824 | } | |
6825 | ||
6826 | /* allow an 'optional' key, everything else is invalid */ | |
6827 | if (!identified && | |
6828 | (strcmp(name, "optional") != 0 || | |
6829 | type != DATA_TYPE_NVLIST)) { | |
6830 | return (SET_ERROR(ZFS_ERR_IOC_ARG_UNAVAIL)); | |
6831 | } | |
6832 | } | |
6833 | ||
6834 | /* verify that all required keys were found */ | |
6835 | for (int k = 0; k < vec->zvec_nvl_key_count; k++) { | |
6836 | if (nvl_keys[k].zkey_flags & ZK_OPTIONAL) | |
6837 | continue; | |
6838 | ||
6839 | if (nvl_keys[k].zkey_flags & ZK_WILDCARDLIST) { | |
6840 | /* at least one non-optionial key is expected here */ | |
6841 | if (!required_keys_found) | |
6842 | return (SET_ERROR(ZFS_ERR_IOC_ARG_REQUIRED)); | |
6843 | continue; | |
6844 | } | |
6845 | ||
6846 | if (!nvlist_exists(innvl, nvl_keys[k].zkey_name)) | |
6847 | return (SET_ERROR(ZFS_ERR_IOC_ARG_REQUIRED)); | |
6848 | } | |
6849 | ||
6850 | return (0); | |
6851 | } | |
6852 | ||
9babb374 | 6853 | int |
572e2857 BB |
6854 | pool_status_check(const char *name, zfs_ioc_namecheck_t type, |
6855 | zfs_ioc_poolcheck_t check) | |
9babb374 BB |
6856 | { |
6857 | spa_t *spa; | |
6858 | int error; | |
6859 | ||
6860 | ASSERT(type == POOL_NAME || type == DATASET_NAME); | |
6861 | ||
572e2857 BB |
6862 | if (check & POOL_CHECK_NONE) |
6863 | return (0); | |
6864 | ||
9babb374 BB |
6865 | error = spa_open(name, &spa, FTAG); |
6866 | if (error == 0) { | |
572e2857 | 6867 | if ((check & POOL_CHECK_SUSPENDED) && spa_suspended(spa)) |
2e528b49 | 6868 | error = SET_ERROR(EAGAIN); |
572e2857 | 6869 | else if ((check & POOL_CHECK_READONLY) && !spa_writeable(spa)) |
2e528b49 | 6870 | error = SET_ERROR(EROFS); |
9babb374 BB |
6871 | spa_close(spa, FTAG); |
6872 | } | |
6873 | return (error); | |
6874 | } | |
6875 | ||
325f0235 BB |
6876 | static void * |
6877 | zfsdev_get_state_impl(minor_t minor, enum zfsdev_state_type which) | |
6878 | { | |
6879 | zfsdev_state_t *zs; | |
6880 | ||
3937ab20 | 6881 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { |
325f0235 | 6882 | if (zs->zs_minor == minor) { |
3937ab20 | 6883 | smp_rmb(); |
325f0235 | 6884 | switch (which) { |
d1d7e268 MK |
6885 | case ZST_ONEXIT: |
6886 | return (zs->zs_onexit); | |
6887 | case ZST_ZEVENT: | |
6888 | return (zs->zs_zevent); | |
6889 | case ZST_ALL: | |
6890 | return (zs); | |
325f0235 BB |
6891 | } |
6892 | } | |
6893 | } | |
6894 | ||
d1d7e268 | 6895 | return (NULL); |
325f0235 BB |
6896 | } |
6897 | ||
6898 | void * | |
6899 | zfsdev_get_state(minor_t minor, enum zfsdev_state_type which) | |
6900 | { | |
6901 | void *ptr; | |
6902 | ||
325f0235 | 6903 | ptr = zfsdev_get_state_impl(minor, which); |
325f0235 | 6904 | |
d1d7e268 | 6905 | return (ptr); |
325f0235 BB |
6906 | } |
6907 | ||
72540ea3 RY |
6908 | int |
6909 | zfsdev_getminor(struct file *filp, minor_t *minorp) | |
325f0235 | 6910 | { |
72540ea3 RY |
6911 | zfsdev_state_t *zs, *fpd; |
6912 | ||
325f0235 | 6913 | ASSERT(filp != NULL); |
72540ea3 RY |
6914 | ASSERT(!MUTEX_HELD(&zfsdev_state_lock)); |
6915 | ||
6916 | fpd = filp->private_data; | |
6917 | if (fpd == NULL) | |
ecb2b7dc | 6918 | return (SET_ERROR(EBADF)); |
72540ea3 RY |
6919 | |
6920 | mutex_enter(&zfsdev_state_lock); | |
6921 | ||
6922 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { | |
6923 | ||
6924 | if (zs->zs_minor == -1) | |
6925 | continue; | |
6926 | ||
6927 | if (fpd == zs) { | |
6928 | *minorp = fpd->zs_minor; | |
6929 | mutex_exit(&zfsdev_state_lock); | |
6930 | return (0); | |
6931 | } | |
6932 | } | |
6933 | ||
6934 | mutex_exit(&zfsdev_state_lock); | |
325f0235 | 6935 | |
ecb2b7dc | 6936 | return (SET_ERROR(EBADF)); |
325f0235 BB |
6937 | } |
6938 | ||
572e2857 | 6939 | /* |
325f0235 BB |
6940 | * Find a free minor number. The zfsdev_state_list is expected to |
6941 | * be short since it is only a list of currently open file handles. | |
572e2857 BB |
6942 | */ |
6943 | minor_t | |
6944 | zfsdev_minor_alloc(void) | |
6945 | { | |
325f0235 | 6946 | static minor_t last_minor = 0; |
572e2857 BB |
6947 | minor_t m; |
6948 | ||
6949 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
6950 | ||
6951 | for (m = last_minor + 1; m != last_minor; m++) { | |
6952 | if (m > ZFSDEV_MAX_MINOR) | |
6953 | m = 1; | |
325f0235 | 6954 | if (zfsdev_get_state_impl(m, ZST_ALL) == NULL) { |
572e2857 BB |
6955 | last_minor = m; |
6956 | return (m); | |
6957 | } | |
6958 | } | |
6959 | ||
6960 | return (0); | |
6961 | } | |
6962 | ||
6963 | static int | |
325f0235 | 6964 | zfsdev_state_init(struct file *filp) |
572e2857 | 6965 | { |
3937ab20 | 6966 | zfsdev_state_t *zs, *zsprev = NULL; |
572e2857 | 6967 | minor_t minor; |
3937ab20 | 6968 | boolean_t newzs = B_FALSE; |
572e2857 BB |
6969 | |
6970 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
572e2857 | 6971 | |
d1d7e268 MK |
6972 | minor = zfsdev_minor_alloc(); |
6973 | if (minor == 0) | |
6974 | return (SET_ERROR(ENXIO)); | |
325f0235 | 6975 | |
3937ab20 TC |
6976 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { |
6977 | if (zs->zs_minor == -1) | |
6978 | break; | |
6979 | zsprev = zs; | |
6980 | } | |
6981 | ||
6982 | if (!zs) { | |
6983 | zs = kmem_zalloc(sizeof (zfsdev_state_t), KM_SLEEP); | |
6984 | newzs = B_TRUE; | |
6985 | } | |
572e2857 | 6986 | |
325f0235 | 6987 | zs->zs_file = filp; |
325f0235 | 6988 | filp->private_data = zs; |
572e2857 | 6989 | |
325f0235 BB |
6990 | zfs_onexit_init((zfs_onexit_t **)&zs->zs_onexit); |
6991 | zfs_zevent_init((zfs_zevent_t **)&zs->zs_zevent); | |
572e2857 | 6992 | |
3937ab20 TC |
6993 | |
6994 | /* | |
6995 | * In order to provide for lock-free concurrent read access | |
6996 | * to the minor list in zfsdev_get_state_impl(), new entries | |
6997 | * must be completely written before linking them into the | |
6998 | * list whereas existing entries are already linked; the last | |
6999 | * operation must be updating zs_minor (from -1 to the new | |
7000 | * value). | |
7001 | */ | |
7002 | if (newzs) { | |
7003 | zs->zs_minor = minor; | |
7004 | smp_wmb(); | |
7005 | zsprev->zs_next = zs; | |
7006 | } else { | |
7007 | smp_wmb(); | |
7008 | zs->zs_minor = minor; | |
7009 | } | |
572e2857 BB |
7010 | |
7011 | return (0); | |
7012 | } | |
7013 | ||
325f0235 BB |
7014 | static int |
7015 | zfsdev_state_destroy(struct file *filp) | |
572e2857 | 7016 | { |
325f0235 | 7017 | zfsdev_state_t *zs; |
572e2857 | 7018 | |
325f0235 BB |
7019 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); |
7020 | ASSERT(filp->private_data != NULL); | |
572e2857 | 7021 | |
325f0235 | 7022 | zs = filp->private_data; |
3937ab20 | 7023 | zs->zs_minor = -1; |
325f0235 BB |
7024 | zfs_onexit_destroy(zs->zs_onexit); |
7025 | zfs_zevent_destroy(zs->zs_zevent); | |
572e2857 | 7026 | |
d1d7e268 | 7027 | return (0); |
572e2857 BB |
7028 | } |
7029 | ||
7030 | static int | |
325f0235 | 7031 | zfsdev_open(struct inode *ino, struct file *filp) |
572e2857 | 7032 | { |
325f0235 | 7033 | int error; |
572e2857 | 7034 | |
325f0235 BB |
7035 | mutex_enter(&zfsdev_state_lock); |
7036 | error = zfsdev_state_init(filp); | |
7037 | mutex_exit(&zfsdev_state_lock); | |
572e2857 | 7038 | |
325f0235 | 7039 | return (-error); |
572e2857 BB |
7040 | } |
7041 | ||
7042 | static int | |
325f0235 | 7043 | zfsdev_release(struct inode *ino, struct file *filp) |
572e2857 | 7044 | { |
325f0235 | 7045 | int error; |
572e2857 BB |
7046 | |
7047 | mutex_enter(&zfsdev_state_lock); | |
325f0235 | 7048 | error = zfsdev_state_destroy(filp); |
572e2857 BB |
7049 | mutex_exit(&zfsdev_state_lock); |
7050 | ||
325f0235 | 7051 | return (-error); |
572e2857 BB |
7052 | } |
7053 | ||
325f0235 BB |
7054 | static long |
7055 | zfsdev_ioctl(struct file *filp, unsigned cmd, unsigned long arg) | |
34dc7c2f BB |
7056 | { |
7057 | zfs_cmd_t *zc; | |
6f1ffb06 | 7058 | uint_t vecnum; |
4fd762f8 | 7059 | int error, rc, flag = 0; |
6f1ffb06 | 7060 | const zfs_ioc_vec_t *vec; |
fb8e608d | 7061 | char *saved_poolname = NULL; |
6f1ffb06 | 7062 | nvlist_t *innvl = NULL; |
40d06e3c | 7063 | fstrans_cookie_t cookie; |
6f1ffb06 MA |
7064 | |
7065 | vecnum = cmd - ZFS_IOC_FIRST; | |
7066 | if (vecnum >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0])) | |
b83a0e2d | 7067 | return (-SET_ERROR(ZFS_ERR_IOC_CMD_UNAVAIL)); |
6f1ffb06 | 7068 | vec = &zfs_ioc_vec[vecnum]; |
34dc7c2f | 7069 | |
2e0358cb BB |
7070 | /* |
7071 | * The registered ioctl list may be sparse, verify that either | |
7072 | * a normal or legacy handler are registered. | |
7073 | */ | |
7074 | if (vec->zvec_func == NULL && vec->zvec_legacy_func == NULL) | |
b83a0e2d | 7075 | return (-SET_ERROR(ZFS_ERR_IOC_CMD_UNAVAIL)); |
2e0358cb | 7076 | |
efcd79a8 | 7077 | zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); |
34dc7c2f | 7078 | |
9babb374 | 7079 | error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag); |
6f1ffb06 | 7080 | if (error != 0) { |
2e528b49 | 7081 | error = SET_ERROR(EFAULT); |
6f1ffb06 MA |
7082 | goto out; |
7083 | } | |
34dc7c2f | 7084 | |
6f1ffb06 | 7085 | zc->zc_iflags = flag & FKIOCTL; |
f74b821a BB |
7086 | if (zc->zc_nvlist_src_size > MAX_NVLIST_SRC_SIZE) { |
7087 | /* | |
7088 | * Make sure the user doesn't pass in an insane value for | |
7089 | * zc_nvlist_src_size. We have to check, since we will end | |
7090 | * up allocating that much memory inside of get_nvlist(). This | |
7091 | * prevents a nefarious user from allocating tons of kernel | |
7092 | * memory. | |
7093 | * | |
7094 | * Also, we return EINVAL instead of ENOMEM here. The reason | |
7095 | * being that returning ENOMEM from an ioctl() has a special | |
7096 | * connotation; that the user's size value is too small and | |
7097 | * needs to be expanded to hold the nvlist. See | |
7098 | * zcmd_expand_dst_nvlist() for details. | |
7099 | */ | |
7100 | error = SET_ERROR(EINVAL); /* User's size too big */ | |
7101 | ||
7102 | } else if (zc->zc_nvlist_src_size != 0) { | |
6f1ffb06 MA |
7103 | error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
7104 | zc->zc_iflags, &innvl); | |
7105 | if (error != 0) | |
7106 | goto out; | |
7107 | } | |
34dc7c2f BB |
7108 | |
7109 | /* | |
7110 | * Ensure that all pool/dataset names are valid before we pass down to | |
7111 | * the lower layers. | |
7112 | */ | |
6f1ffb06 MA |
7113 | zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; |
7114 | switch (vec->zvec_namecheck) { | |
7115 | case POOL_NAME: | |
7116 | if (pool_namecheck(zc->zc_name, NULL, NULL) != 0) | |
2e528b49 | 7117 | error = SET_ERROR(EINVAL); |
6f1ffb06 | 7118 | else |
572e2857 | 7119 | error = pool_status_check(zc->zc_name, |
6f1ffb06 MA |
7120 | vec->zvec_namecheck, vec->zvec_pool_check); |
7121 | break; | |
34dc7c2f | 7122 | |
6f1ffb06 MA |
7123 | case DATASET_NAME: |
7124 | if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0) | |
2e528b49 | 7125 | error = SET_ERROR(EINVAL); |
6f1ffb06 | 7126 | else |
572e2857 | 7127 | error = pool_status_check(zc->zc_name, |
6f1ffb06 MA |
7128 | vec->zvec_namecheck, vec->zvec_pool_check); |
7129 | break; | |
34dc7c2f | 7130 | |
6f1ffb06 MA |
7131 | case NO_NAME: |
7132 | break; | |
34dc7c2f BB |
7133 | } |
7134 | ||
b83a0e2d DB |
7135 | /* |
7136 | * Ensure that all input pairs are valid before we pass them down | |
7137 | * to the lower layers. | |
7138 | * | |
7139 | * The vectored functions can use fnvlist_lookup_{type} for any | |
7140 | * required pairs since zfs_check_input_nvpairs() confirmed that | |
7141 | * they exist and are of the correct type. | |
7142 | */ | |
7143 | if (error == 0 && vec->zvec_func != NULL) { | |
7144 | error = zfs_check_input_nvpairs(innvl, vec); | |
7145 | if (error != 0) | |
7146 | goto out; | |
7147 | } | |
34dc7c2f | 7148 | |
005e27e3 | 7149 | if (error == 0) { |
ddab862d | 7150 | cookie = spl_fstrans_mark(); |
6f1ffb06 | 7151 | error = vec->zvec_secpolicy(zc, innvl, CRED()); |
ddab862d TC |
7152 | spl_fstrans_unmark(cookie); |
7153 | } | |
6f1ffb06 MA |
7154 | |
7155 | if (error != 0) | |
7156 | goto out; | |
7157 | ||
7158 | /* legacy ioctls can modify zc_name */ | |
4fd762f8 BB |
7159 | saved_poolname = strdup(zc->zc_name); |
7160 | if (saved_poolname == NULL) { | |
7161 | error = SET_ERROR(ENOMEM); | |
7162 | goto out; | |
7163 | } else { | |
7164 | saved_poolname[strcspn(saved_poolname, "/@#")] = '\0'; | |
7165 | } | |
6f1ffb06 MA |
7166 | |
7167 | if (vec->zvec_func != NULL) { | |
7168 | nvlist_t *outnvl; | |
7169 | int puterror = 0; | |
7170 | spa_t *spa; | |
7171 | nvlist_t *lognv = NULL; | |
7172 | ||
7173 | ASSERT(vec->zvec_legacy_func == NULL); | |
7174 | ||
7175 | /* | |
7176 | * Add the innvl to the lognv before calling the func, | |
7177 | * in case the func changes the innvl. | |
7178 | */ | |
7179 | if (vec->zvec_allow_log) { | |
7180 | lognv = fnvlist_alloc(); | |
7181 | fnvlist_add_string(lognv, ZPOOL_HIST_IOCTL, | |
7182 | vec->zvec_name); | |
7183 | if (!nvlist_empty(innvl)) { | |
7184 | fnvlist_add_nvlist(lognv, ZPOOL_HIST_INPUT_NVL, | |
7185 | innvl); | |
7186 | } | |
7187 | } | |
7188 | ||
79c76d5b | 7189 | outnvl = fnvlist_alloc(); |
40d06e3c | 7190 | cookie = spl_fstrans_mark(); |
6f1ffb06 | 7191 | error = vec->zvec_func(zc->zc_name, innvl, outnvl); |
40d06e3c | 7192 | spl_fstrans_unmark(cookie); |
6f1ffb06 | 7193 | |
d99a0153 CW |
7194 | /* |
7195 | * Some commands can partially execute, modify state, and still | |
7196 | * return an error. In these cases, attempt to record what | |
7197 | * was modified. | |
7198 | */ | |
7199 | if ((error == 0 || | |
7200 | (cmd == ZFS_IOC_CHANNEL_PROGRAM && error != EINVAL)) && | |
7201 | vec->zvec_allow_log && | |
6f1ffb06 MA |
7202 | spa_open(zc->zc_name, &spa, FTAG) == 0) { |
7203 | if (!nvlist_empty(outnvl)) { | |
7204 | fnvlist_add_nvlist(lognv, ZPOOL_HIST_OUTPUT_NVL, | |
7205 | outnvl); | |
7206 | } | |
d99a0153 CW |
7207 | if (error != 0) { |
7208 | fnvlist_add_int64(lognv, ZPOOL_HIST_ERRNO, | |
7209 | error); | |
7210 | } | |
6f1ffb06 MA |
7211 | (void) spa_history_log_nvl(spa, lognv); |
7212 | spa_close(spa, FTAG); | |
7213 | } | |
7214 | fnvlist_free(lognv); | |
7215 | ||
7216 | if (!nvlist_empty(outnvl) || zc->zc_nvlist_dst_size != 0) { | |
7217 | int smusherror = 0; | |
7218 | if (vec->zvec_smush_outnvlist) { | |
7219 | smusherror = nvlist_smush(outnvl, | |
7220 | zc->zc_nvlist_dst_size); | |
7221 | } | |
7222 | if (smusherror == 0) | |
7223 | puterror = put_nvlist(zc, outnvl); | |
7224 | } | |
7225 | ||
7226 | if (puterror != 0) | |
7227 | error = puterror; | |
7228 | ||
7229 | nvlist_free(outnvl); | |
7230 | } else { | |
40d06e3c | 7231 | cookie = spl_fstrans_mark(); |
6f1ffb06 | 7232 | error = vec->zvec_legacy_func(zc); |
40d06e3c | 7233 | spl_fstrans_unmark(cookie); |
6f1ffb06 MA |
7234 | } |
7235 | ||
7236 | out: | |
7237 | nvlist_free(innvl); | |
9babb374 | 7238 | rc = ddi_copyout(zc, (void *)arg, sizeof (zfs_cmd_t), flag); |
6f1ffb06 | 7239 | if (error == 0 && rc != 0) |
2e528b49 | 7240 | error = SET_ERROR(EFAULT); |
6f1ffb06 MA |
7241 | if (error == 0 && vec->zvec_allow_log) { |
7242 | char *s = tsd_get(zfs_allow_log_key); | |
7243 | if (s != NULL) | |
7244 | strfree(s); | |
fb8e608d TC |
7245 | (void) tsd_set(zfs_allow_log_key, saved_poolname); |
7246 | } else { | |
7247 | if (saved_poolname != NULL) | |
4fd762f8 | 7248 | strfree(saved_poolname); |
34dc7c2f BB |
7249 | } |
7250 | ||
7251 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
325f0235 | 7252 | return (-error); |
34dc7c2f BB |
7253 | } |
7254 | ||
325f0235 BB |
7255 | #ifdef CONFIG_COMPAT |
7256 | static long | |
7257 | zfsdev_compat_ioctl(struct file *filp, unsigned cmd, unsigned long arg) | |
34dc7c2f | 7258 | { |
d1d7e268 | 7259 | return (zfsdev_ioctl(filp, cmd, arg)); |
325f0235 BB |
7260 | } |
7261 | #else | |
d1d7e268 | 7262 | #define zfsdev_compat_ioctl NULL |
325f0235 | 7263 | #endif |
34dc7c2f | 7264 | |
325f0235 | 7265 | static const struct file_operations zfsdev_fops = { |
d1d7e268 MK |
7266 | .open = zfsdev_open, |
7267 | .release = zfsdev_release, | |
7268 | .unlocked_ioctl = zfsdev_ioctl, | |
7269 | .compat_ioctl = zfsdev_compat_ioctl, | |
7270 | .owner = THIS_MODULE, | |
325f0235 | 7271 | }; |
34dc7c2f | 7272 | |
325f0235 | 7273 | static struct miscdevice zfs_misc = { |
a6cc9756 | 7274 | .minor = ZFS_MINOR, |
d1d7e268 MK |
7275 | .name = ZFS_DRIVER, |
7276 | .fops = &zfsdev_fops, | |
325f0235 | 7277 | }; |
34dc7c2f | 7278 | |
a6cc9756 BB |
7279 | MODULE_ALIAS_MISCDEV(ZFS_MINOR); |
7280 | MODULE_ALIAS("devname:zfs"); | |
7281 | ||
34dc7c2f | 7282 | static int |
325f0235 | 7283 | zfs_attach(void) |
34dc7c2f | 7284 | { |
325f0235 | 7285 | int error; |
34dc7c2f | 7286 | |
325f0235 | 7287 | mutex_init(&zfsdev_state_lock, NULL, MUTEX_DEFAULT, NULL); |
3937ab20 TC |
7288 | zfsdev_state_list = kmem_zalloc(sizeof (zfsdev_state_t), KM_SLEEP); |
7289 | zfsdev_state_list->zs_minor = -1; | |
34dc7c2f | 7290 | |
325f0235 | 7291 | error = misc_register(&zfs_misc); |
a6cc9756 BB |
7292 | if (error == -EBUSY) { |
7293 | /* | |
7294 | * Fallback to dynamic minor allocation in the event of a | |
7295 | * collision with a reserved minor in linux/miscdevice.h. | |
7296 | * In this case the kernel modules must be manually loaded. | |
7297 | */ | |
7298 | printk(KERN_INFO "ZFS: misc_register() with static minor %d " | |
7299 | "failed %d, retrying with MISC_DYNAMIC_MINOR\n", | |
7300 | ZFS_MINOR, error); | |
7301 | ||
7302 | zfs_misc.minor = MISC_DYNAMIC_MINOR; | |
7303 | error = misc_register(&zfs_misc); | |
325f0235 | 7304 | } |
34dc7c2f | 7305 | |
a6cc9756 BB |
7306 | if (error) |
7307 | printk(KERN_INFO "ZFS: misc_register() failed %d\n", error); | |
7308 | ||
7309 | return (error); | |
34dc7c2f BB |
7310 | } |
7311 | ||
325f0235 BB |
7312 | static void |
7313 | zfs_detach(void) | |
34dc7c2f | 7314 | { |
3937ab20 | 7315 | zfsdev_state_t *zs, *zsprev = NULL; |
34dc7c2f | 7316 | |
324dcd37 | 7317 | misc_deregister(&zfs_misc); |
325f0235 | 7318 | mutex_destroy(&zfsdev_state_lock); |
3937ab20 TC |
7319 | |
7320 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { | |
7321 | if (zsprev) | |
7322 | kmem_free(zsprev, sizeof (zfsdev_state_t)); | |
7323 | zsprev = zs; | |
7324 | } | |
7325 | if (zsprev) | |
7326 | kmem_free(zsprev, sizeof (zfsdev_state_t)); | |
34dc7c2f BB |
7327 | } |
7328 | ||
6f1ffb06 MA |
7329 | static void |
7330 | zfs_allow_log_destroy(void *arg) | |
7331 | { | |
7332 | char *poolname = arg; | |
9f3d1407 | 7333 | |
7334 | if (poolname != NULL) | |
7335 | strfree(poolname); | |
6f1ffb06 | 7336 | } |
325f0235 BB |
7337 | |
7338 | #ifdef DEBUG | |
d1d7e268 | 7339 | #define ZFS_DEBUG_STR " (DEBUG mode)" |
325f0235 | 7340 | #else |
d1d7e268 | 7341 | #define ZFS_DEBUG_STR "" |
325f0235 | 7342 | #endif |
34dc7c2f | 7343 | |
b4f3666a | 7344 | static int __init |
34dc7c2f BB |
7345 | _init(void) |
7346 | { | |
7347 | int error; | |
7348 | ||
3d8d245f | 7349 | error = -vn_set_pwd("/"); |
b4f3666a BB |
7350 | if (error) { |
7351 | printk(KERN_NOTICE | |
7352 | "ZFS: Warning unable to set pwd to '/': %d\n", error); | |
7353 | return (error); | |
7354 | } | |
7355 | ||
a0bd735a BP |
7356 | if ((error = -zvol_init()) != 0) |
7357 | return (error); | |
7358 | ||
34dc7c2f BB |
7359 | spa_init(FREAD | FWRITE); |
7360 | zfs_init(); | |
34dc7c2f | 7361 | |
6f1ffb06 | 7362 | zfs_ioctl_init(); |
e8bcb693 | 7363 | zfs_sysfs_init(); |
6f1ffb06 | 7364 | |
325f0235 | 7365 | if ((error = zfs_attach()) != 0) |
a0bd735a | 7366 | goto out; |
34dc7c2f | 7367 | |
d5446cfc | 7368 | tsd_create(&zfs_fsyncer_key, NULL); |
6f1ffb06 MA |
7369 | tsd_create(&rrw_tsd_key, rrw_tsd_destroy); |
7370 | tsd_create(&zfs_allow_log_key, zfs_allow_log_destroy); | |
34dc7c2f | 7371 | |
4b5d425f | 7372 | printk(KERN_NOTICE "ZFS: Loaded module v%s-%s%s, " |
d1d7e268 MK |
7373 | "ZFS pool version %s, ZFS filesystem version %s\n", |
7374 | ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR, | |
7375 | SPA_VERSION_STRING, ZPL_VERSION_STRING); | |
b695c34e MM |
7376 | #ifndef CONFIG_FS_POSIX_ACL |
7377 | printk(KERN_NOTICE "ZFS: Posix ACLs disabled by kernel\n"); | |
7378 | #endif /* CONFIG_FS_POSIX_ACL */ | |
34dc7c2f BB |
7379 | |
7380 | return (0); | |
325f0235 | 7381 | |
a0bd735a | 7382 | out: |
e8bcb693 | 7383 | zfs_sysfs_fini(); |
325f0235 BB |
7384 | zfs_fini(); |
7385 | spa_fini(); | |
a0bd735a | 7386 | (void) zvol_fini(); |
4b5d425f | 7387 | printk(KERN_NOTICE "ZFS: Failed to Load ZFS Filesystem v%s-%s%s" |
d1d7e268 MK |
7388 | ", rc = %d\n", ZFS_META_VERSION, ZFS_META_RELEASE, |
7389 | ZFS_DEBUG_STR, error); | |
325f0235 BB |
7390 | |
7391 | return (error); | |
34dc7c2f BB |
7392 | } |
7393 | ||
b4f3666a | 7394 | static void __exit |
34dc7c2f BB |
7395 | _fini(void) |
7396 | { | |
325f0235 | 7397 | zfs_detach(); |
e8bcb693 | 7398 | zfs_sysfs_fini(); |
34dc7c2f BB |
7399 | zfs_fini(); |
7400 | spa_fini(); | |
a0bd735a | 7401 | zvol_fini(); |
46e18b3f | 7402 | |
d5446cfc | 7403 | tsd_destroy(&zfs_fsyncer_key); |
3fc050aa | 7404 | tsd_destroy(&rrw_tsd_key); |
6f1ffb06 | 7405 | tsd_destroy(&zfs_allow_log_key); |
34dc7c2f | 7406 | |
4b5d425f | 7407 | printk(KERN_NOTICE "ZFS: Unloaded module v%s-%s%s\n", |
d1d7e268 | 7408 | ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR); |
34dc7c2f | 7409 | } |
325f0235 | 7410 | |
93ce2b4c | 7411 | #if defined(_KERNEL) |
b4f3666a BB |
7412 | module_init(_init); |
7413 | module_exit(_fini); | |
325f0235 BB |
7414 | |
7415 | MODULE_DESCRIPTION("ZFS"); | |
7416 | MODULE_AUTHOR(ZFS_META_AUTHOR); | |
7417 | MODULE_LICENSE(ZFS_META_LICENSE); | |
99e349db | 7418 | MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE); |
93ce2b4c | 7419 | #endif |