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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. |
8d103d88 | 30 | * Copyright (c) 2011, 2017 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). | |
66 | * The ioctl numbers can change from release to release, because | |
67 | * the caller (libzfs) must be matched to the kernel. | |
68 | * | |
69 | * zfs_secpolicy_func_t *secpolicy | |
70 | * This function will be called before the zfs_ioc_func_t, to | |
71 | * determine if this operation is permitted. It should return EPERM | |
72 | * on failure, and 0 on success. Checks include determining if the | |
73 | * dataset is visible in this zone, and if the user has either all | |
74 | * zfs privileges in the zone (SYS_MOUNT), or has been granted permission | |
75 | * to do this operation on this dataset with "zfs allow". | |
76 | * | |
77 | * zfs_ioc_namecheck_t namecheck | |
78 | * This specifies what to expect in the zfs_cmd_t:zc_name -- a pool | |
79 | * name, a dataset name, or nothing. If the name is not well-formed, | |
80 | * the ioctl will fail and the callback will not be called. | |
81 | * Therefore, the callback can assume that the name is well-formed | |
82 | * (e.g. is null-terminated, doesn't have more than one '@' character, | |
83 | * doesn't have invalid characters). | |
84 | * | |
85 | * zfs_ioc_poolcheck_t pool_check | |
86 | * This specifies requirements on the pool state. If the pool does | |
87 | * not meet them (is suspended or is readonly), the ioctl will fail | |
88 | * and the callback will not be called. If any checks are specified | |
89 | * (i.e. it is not POOL_CHECK_NONE), namecheck must not be NO_NAME. | |
90 | * Multiple checks can be or-ed together (e.g. POOL_CHECK_SUSPENDED | | |
91 | * POOL_CHECK_READONLY). | |
92 | * | |
93 | * boolean_t smush_outnvlist | |
94 | * If smush_outnvlist is true, then the output is presumed to be a | |
95 | * list of errors, and it will be "smushed" down to fit into the | |
96 | * caller's buffer, by removing some entries and replacing them with a | |
97 | * single "N_MORE_ERRORS" entry indicating how many were removed. See | |
98 | * nvlist_smush() for details. If smush_outnvlist is false, and the | |
99 | * outnvlist does not fit into the userland-provided buffer, then the | |
100 | * ioctl will fail with ENOMEM. | |
101 | * | |
102 | * zfs_ioc_func_t *func | |
103 | * The callback function that will perform the operation. | |
104 | * | |
105 | * The callback should return 0 on success, or an error number on | |
106 | * failure. If the function fails, the userland ioctl will return -1, | |
107 | * and errno will be set to the callback's return value. The callback | |
108 | * will be called with the following arguments: | |
109 | * | |
110 | * const char *name | |
111 | * The name of the pool or dataset to operate on, from | |
112 | * zfs_cmd_t:zc_name. The 'namecheck' argument specifies the | |
113 | * expected type (pool, dataset, or none). | |
114 | * | |
115 | * nvlist_t *innvl | |
116 | * The input nvlist, deserialized from zfs_cmd_t:zc_nvlist_src. Or | |
117 | * NULL if no input nvlist was provided. Changes to this nvlist are | |
118 | * ignored. If the input nvlist could not be deserialized, the | |
119 | * ioctl will fail and the callback will not be called. | |
120 | * | |
121 | * nvlist_t *outnvl | |
122 | * The output nvlist, initially empty. The callback can fill it in, | |
123 | * and it will be returned to userland by serializing it into | |
124 | * zfs_cmd_t:zc_nvlist_dst. If it is non-empty, and serialization | |
125 | * fails (e.g. because the caller didn't supply a large enough | |
126 | * buffer), then the overall ioctl will fail. See the | |
127 | * 'smush_nvlist' argument above for additional behaviors. | |
128 | * | |
129 | * There are two typical uses of the output nvlist: | |
130 | * - To return state, e.g. property values. In this case, | |
131 | * smush_outnvlist should be false. If the buffer was not large | |
132 | * enough, the caller will reallocate a larger buffer and try | |
133 | * the ioctl again. | |
134 | * | |
135 | * - To return multiple errors from an ioctl which makes on-disk | |
136 | * changes. In this case, smush_outnvlist should be true. | |
137 | * Ioctls which make on-disk modifications should generally not | |
138 | * use the outnvl if they succeed, because the caller can not | |
139 | * distinguish between the operation failing, and | |
140 | * deserialization failing. | |
3541dc6d | 141 | */ |
34dc7c2f | 142 | |
34dc7c2f BB |
143 | #include <sys/types.h> |
144 | #include <sys/param.h> | |
145 | #include <sys/errno.h> | |
146 | #include <sys/uio.h> | |
147 | #include <sys/buf.h> | |
148 | #include <sys/modctl.h> | |
149 | #include <sys/open.h> | |
150 | #include <sys/file.h> | |
151 | #include <sys/kmem.h> | |
152 | #include <sys/conf.h> | |
153 | #include <sys/cmn_err.h> | |
154 | #include <sys/stat.h> | |
155 | #include <sys/zfs_ioctl.h> | |
428870ff | 156 | #include <sys/zfs_vfsops.h> |
34dc7c2f BB |
157 | #include <sys/zfs_znode.h> |
158 | #include <sys/zap.h> | |
159 | #include <sys/spa.h> | |
160 | #include <sys/spa_impl.h> | |
161 | #include <sys/vdev.h> | |
4a283c7f | 162 | #include <sys/vdev_impl.h> |
428870ff | 163 | #include <sys/priv_impl.h> |
34dc7c2f BB |
164 | #include <sys/dmu.h> |
165 | #include <sys/dsl_dir.h> | |
166 | #include <sys/dsl_dataset.h> | |
167 | #include <sys/dsl_prop.h> | |
168 | #include <sys/dsl_deleg.h> | |
169 | #include <sys/dmu_objset.h> | |
37abac6d | 170 | #include <sys/dmu_impl.h> |
13fe0198 | 171 | #include <sys/dmu_tx.h> |
34dc7c2f BB |
172 | #include <sys/ddi.h> |
173 | #include <sys/sunddi.h> | |
174 | #include <sys/sunldi.h> | |
175 | #include <sys/policy.h> | |
176 | #include <sys/zone.h> | |
177 | #include <sys/nvpair.h> | |
178 | #include <sys/pathname.h> | |
179 | #include <sys/mount.h> | |
180 | #include <sys/sdt.h> | |
181 | #include <sys/fs/zfs.h> | |
ebe7e575 | 182 | #include <sys/zfs_ctldir.h> |
34dc7c2f | 183 | #include <sys/zfs_dir.h> |
572e2857 | 184 | #include <sys/zfs_onexit.h> |
34dc7c2f | 185 | #include <sys/zvol.h> |
428870ff | 186 | #include <sys/dsl_scan.h> |
34dc7c2f | 187 | #include <sharefs/share.h> |
325f0235 | 188 | #include <sys/fm/util.h> |
b5256303 | 189 | #include <sys/dsl_crypt.h> |
325f0235 | 190 | |
13fe0198 MA |
191 | #include <sys/dmu_send.h> |
192 | #include <sys/dsl_destroy.h> | |
da536844 | 193 | #include <sys/dsl_bookmark.h> |
13fe0198 | 194 | #include <sys/dsl_userhold.h> |
9759c60f | 195 | #include <sys/zfeature.h> |
d99a0153 | 196 | #include <sys/zcp.h> |
3c67d83a | 197 | #include <sys/zio_checksum.h> |
9759c60f | 198 | |
325f0235 | 199 | #include <linux/miscdevice.h> |
f74b821a | 200 | #include <linux/slab.h> |
34dc7c2f BB |
201 | |
202 | #include "zfs_namecheck.h" | |
203 | #include "zfs_prop.h" | |
204 | #include "zfs_deleg.h" | |
428870ff | 205 | #include "zfs_comutil.h" |
34dc7c2f | 206 | |
d99a0153 CW |
207 | #include <sys/lua/lua.h> |
208 | #include <sys/lua/lauxlib.h> | |
209 | ||
f74b821a BB |
210 | /* |
211 | * Limit maximum nvlist size. We don't want users passing in insane values | |
212 | * for zc->zc_nvlist_src_size, since we will need to allocate that much memory. | |
213 | */ | |
214 | #define MAX_NVLIST_SRC_SIZE KMALLOC_MAX_SIZE | |
215 | ||
325f0235 | 216 | kmutex_t zfsdev_state_lock; |
3937ab20 | 217 | zfsdev_state_t *zfsdev_state_list; |
34dc7c2f BB |
218 | |
219 | extern void zfs_init(void); | |
220 | extern void zfs_fini(void); | |
221 | ||
6f1ffb06 MA |
222 | uint_t zfs_fsyncer_key; |
223 | extern uint_t rrw_tsd_key; | |
224 | static uint_t zfs_allow_log_key; | |
225 | ||
226 | typedef int zfs_ioc_legacy_func_t(zfs_cmd_t *); | |
227 | typedef int zfs_ioc_func_t(const char *, nvlist_t *, nvlist_t *); | |
228 | typedef int zfs_secpolicy_func_t(zfs_cmd_t *, nvlist_t *, cred_t *); | |
34dc7c2f | 229 | |
9babb374 BB |
230 | typedef enum { |
231 | NO_NAME, | |
232 | POOL_NAME, | |
233 | DATASET_NAME | |
234 | } zfs_ioc_namecheck_t; | |
235 | ||
572e2857 BB |
236 | typedef enum { |
237 | POOL_CHECK_NONE = 1 << 0, | |
238 | POOL_CHECK_SUSPENDED = 1 << 1, | |
6f1ffb06 | 239 | POOL_CHECK_READONLY = 1 << 2, |
572e2857 BB |
240 | } zfs_ioc_poolcheck_t; |
241 | ||
34dc7c2f | 242 | typedef struct zfs_ioc_vec { |
6f1ffb06 | 243 | zfs_ioc_legacy_func_t *zvec_legacy_func; |
34dc7c2f BB |
244 | zfs_ioc_func_t *zvec_func; |
245 | zfs_secpolicy_func_t *zvec_secpolicy; | |
9babb374 | 246 | zfs_ioc_namecheck_t zvec_namecheck; |
6f1ffb06 | 247 | boolean_t zvec_allow_log; |
572e2857 | 248 | zfs_ioc_poolcheck_t zvec_pool_check; |
6f1ffb06 MA |
249 | boolean_t zvec_smush_outnvlist; |
250 | const char *zvec_name; | |
34dc7c2f BB |
251 | } zfs_ioc_vec_t; |
252 | ||
9babb374 BB |
253 | /* This array is indexed by zfs_userquota_prop_t */ |
254 | static const char *userquota_perms[] = { | |
255 | ZFS_DELEG_PERM_USERUSED, | |
256 | ZFS_DELEG_PERM_USERQUOTA, | |
257 | ZFS_DELEG_PERM_GROUPUSED, | |
258 | ZFS_DELEG_PERM_GROUPQUOTA, | |
1de321e6 JX |
259 | ZFS_DELEG_PERM_USEROBJUSED, |
260 | ZFS_DELEG_PERM_USEROBJQUOTA, | |
261 | ZFS_DELEG_PERM_GROUPOBJUSED, | |
262 | ZFS_DELEG_PERM_GROUPOBJQUOTA, | |
9c5167d1 NF |
263 | ZFS_DELEG_PERM_PROJECTUSED, |
264 | ZFS_DELEG_PERM_PROJECTQUOTA, | |
265 | ZFS_DELEG_PERM_PROJECTOBJUSED, | |
266 | ZFS_DELEG_PERM_PROJECTOBJQUOTA, | |
9babb374 BB |
267 | }; |
268 | ||
269 | static int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc); | |
9c5167d1 | 270 | static int zfs_ioc_id_quota_upgrade(zfs_cmd_t *zc); |
428870ff BB |
271 | static int zfs_check_settable(const char *name, nvpair_t *property, |
272 | cred_t *cr); | |
273 | static int zfs_check_clearable(char *dataset, nvlist_t *props, | |
274 | nvlist_t **errors); | |
b128c09f BB |
275 | static int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *, |
276 | boolean_t *); | |
6f1ffb06 MA |
277 | int zfs_set_prop_nvlist(const char *, zprop_source_t, nvlist_t *, nvlist_t *); |
278 | static int get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp); | |
b128c09f | 279 | |
34dc7c2f BB |
280 | static void |
281 | history_str_free(char *buf) | |
282 | { | |
283 | kmem_free(buf, HIS_MAX_RECORD_LEN); | |
284 | } | |
285 | ||
286 | static char * | |
287 | history_str_get(zfs_cmd_t *zc) | |
288 | { | |
289 | char *buf; | |
290 | ||
b8864a23 | 291 | if (zc->zc_history == 0) |
34dc7c2f BB |
292 | return (NULL); |
293 | ||
efcd79a8 | 294 | buf = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP); |
34dc7c2f BB |
295 | if (copyinstr((void *)(uintptr_t)zc->zc_history, |
296 | buf, HIS_MAX_RECORD_LEN, NULL) != 0) { | |
297 | history_str_free(buf); | |
298 | return (NULL); | |
299 | } | |
300 | ||
301 | buf[HIS_MAX_RECORD_LEN -1] = '\0'; | |
302 | ||
303 | return (buf); | |
304 | } | |
305 | ||
306 | /* | |
b128c09f BB |
307 | * Check to see if the named dataset is currently defined as bootable |
308 | */ | |
309 | static boolean_t | |
310 | zfs_is_bootfs(const char *name) | |
311 | { | |
428870ff | 312 | objset_t *os; |
b128c09f | 313 | |
428870ff BB |
314 | if (dmu_objset_hold(name, FTAG, &os) == 0) { |
315 | boolean_t ret; | |
316 | ret = (dmu_objset_id(os) == spa_bootfs(dmu_objset_spa(os))); | |
317 | dmu_objset_rele(os, FTAG); | |
318 | return (ret); | |
b128c09f | 319 | } |
428870ff | 320 | return (B_FALSE); |
b128c09f BB |
321 | } |
322 | ||
323 | /* | |
d3cc8b15 | 324 | * Return non-zero if the spa version is less than requested version. |
34dc7c2f BB |
325 | */ |
326 | static int | |
b128c09f | 327 | zfs_earlier_version(const char *name, int version) |
34dc7c2f | 328 | { |
34dc7c2f BB |
329 | spa_t *spa; |
330 | ||
331 | if (spa_open(name, &spa, FTAG) == 0) { | |
332 | if (spa_version(spa) < version) { | |
333 | spa_close(spa, FTAG); | |
334 | return (1); | |
335 | } | |
336 | spa_close(spa, FTAG); | |
337 | } | |
338 | return (0); | |
339 | } | |
340 | ||
341 | /* | |
b128c09f | 342 | * Return TRUE if the ZPL version is less than requested version. |
34dc7c2f | 343 | */ |
b128c09f BB |
344 | static boolean_t |
345 | zpl_earlier_version(const char *name, int version) | |
34dc7c2f BB |
346 | { |
347 | objset_t *os; | |
b128c09f | 348 | boolean_t rc = B_TRUE; |
34dc7c2f | 349 | |
428870ff | 350 | if (dmu_objset_hold(name, FTAG, &os) == 0) { |
b128c09f | 351 | uint64_t zplversion; |
34dc7c2f | 352 | |
428870ff BB |
353 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
354 | dmu_objset_rele(os, FTAG); | |
355 | return (B_TRUE); | |
356 | } | |
357 | /* XXX reading from non-owned objset */ | |
b128c09f BB |
358 | if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0) |
359 | rc = zplversion < version; | |
428870ff | 360 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
361 | } |
362 | return (rc); | |
363 | } | |
364 | ||
365 | static void | |
366 | zfs_log_history(zfs_cmd_t *zc) | |
367 | { | |
368 | spa_t *spa; | |
369 | char *buf; | |
370 | ||
371 | if ((buf = history_str_get(zc)) == NULL) | |
372 | return; | |
373 | ||
374 | if (spa_open(zc->zc_name, &spa, FTAG) == 0) { | |
375 | if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY) | |
6f1ffb06 | 376 | (void) spa_history_log(spa, buf); |
34dc7c2f BB |
377 | spa_close(spa, FTAG); |
378 | } | |
379 | history_str_free(buf); | |
380 | } | |
381 | ||
382 | /* | |
383 | * Policy for top-level read operations (list pools). Requires no privileges, | |
384 | * and can be used in the local zone, as there is no associated dataset. | |
385 | */ | |
386 | /* ARGSUSED */ | |
387 | static int | |
6f1ffb06 | 388 | zfs_secpolicy_none(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
389 | { |
390 | return (0); | |
391 | } | |
392 | ||
393 | /* | |
394 | * Policy for dataset read operations (list children, get statistics). Requires | |
395 | * no privileges, but must be visible in the local zone. | |
396 | */ | |
397 | /* ARGSUSED */ | |
398 | static int | |
6f1ffb06 | 399 | zfs_secpolicy_read(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
400 | { |
401 | if (INGLOBALZONE(curproc) || | |
402 | zone_dataset_visible(zc->zc_name, NULL)) | |
403 | return (0); | |
404 | ||
2e528b49 | 405 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
406 | } |
407 | ||
408 | static int | |
572e2857 | 409 | zfs_dozonecheck_impl(const char *dataset, uint64_t zoned, cred_t *cr) |
34dc7c2f | 410 | { |
34dc7c2f BB |
411 | int writable = 1; |
412 | ||
413 | /* | |
414 | * The dataset must be visible by this zone -- check this first | |
415 | * so they don't see EPERM on something they shouldn't know about. | |
416 | */ | |
417 | if (!INGLOBALZONE(curproc) && | |
418 | !zone_dataset_visible(dataset, &writable)) | |
2e528b49 | 419 | return (SET_ERROR(ENOENT)); |
34dc7c2f | 420 | |
34dc7c2f BB |
421 | if (INGLOBALZONE(curproc)) { |
422 | /* | |
423 | * If the fs is zoned, only root can access it from the | |
424 | * global zone. | |
425 | */ | |
426 | if (secpolicy_zfs(cr) && zoned) | |
2e528b49 | 427 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
428 | } else { |
429 | /* | |
430 | * If we are in a local zone, the 'zoned' property must be set. | |
431 | */ | |
432 | if (!zoned) | |
2e528b49 | 433 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
434 | |
435 | /* must be writable by this zone */ | |
436 | if (!writable) | |
2e528b49 | 437 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
438 | } |
439 | return (0); | |
440 | } | |
441 | ||
572e2857 BB |
442 | static int |
443 | zfs_dozonecheck(const char *dataset, cred_t *cr) | |
444 | { | |
445 | uint64_t zoned; | |
446 | ||
447 | if (dsl_prop_get_integer(dataset, "zoned", &zoned, NULL)) | |
2e528b49 | 448 | return (SET_ERROR(ENOENT)); |
572e2857 BB |
449 | |
450 | return (zfs_dozonecheck_impl(dataset, zoned, cr)); | |
451 | } | |
452 | ||
453 | static int | |
454 | zfs_dozonecheck_ds(const char *dataset, dsl_dataset_t *ds, cred_t *cr) | |
455 | { | |
456 | uint64_t zoned; | |
457 | ||
13fe0198 | 458 | if (dsl_prop_get_int_ds(ds, "zoned", &zoned)) |
2e528b49 | 459 | return (SET_ERROR(ENOENT)); |
572e2857 BB |
460 | |
461 | return (zfs_dozonecheck_impl(dataset, zoned, cr)); | |
462 | } | |
463 | ||
6f1ffb06 | 464 | static int |
13fe0198 MA |
465 | zfs_secpolicy_write_perms_ds(const char *name, dsl_dataset_t *ds, |
466 | const char *perm, cred_t *cr) | |
34dc7c2f BB |
467 | { |
468 | int error; | |
469 | ||
330d06f9 | 470 | error = zfs_dozonecheck_ds(name, ds, cr); |
34dc7c2f BB |
471 | if (error == 0) { |
472 | error = secpolicy_zfs(cr); | |
13fe0198 | 473 | if (error != 0) |
6f1ffb06 | 474 | error = dsl_deleg_access_impl(ds, perm, cr); |
34dc7c2f BB |
475 | } |
476 | return (error); | |
477 | } | |
478 | ||
6f1ffb06 | 479 | static int |
13fe0198 | 480 | zfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr) |
572e2857 BB |
481 | { |
482 | int error; | |
13fe0198 MA |
483 | dsl_dataset_t *ds; |
484 | dsl_pool_t *dp; | |
572e2857 | 485 | |
e88551d5 GM |
486 | /* |
487 | * First do a quick check for root in the global zone, which | |
488 | * is allowed to do all write_perms. This ensures that zfs_ioc_* | |
489 | * will get to handle nonexistent datasets. | |
490 | */ | |
491 | if (INGLOBALZONE(curproc) && secpolicy_zfs(cr) == 0) | |
492 | return (0); | |
493 | ||
13fe0198 MA |
494 | error = dsl_pool_hold(name, FTAG, &dp); |
495 | if (error != 0) | |
496 | return (error); | |
497 | ||
498 | error = dsl_dataset_hold(dp, name, FTAG, &ds); | |
499 | if (error != 0) { | |
500 | dsl_pool_rele(dp, FTAG); | |
501 | return (error); | |
572e2857 | 502 | } |
13fe0198 MA |
503 | |
504 | error = zfs_secpolicy_write_perms_ds(name, ds, perm, cr); | |
505 | ||
506 | dsl_dataset_rele(ds, FTAG); | |
507 | dsl_pool_rele(dp, FTAG); | |
572e2857 BB |
508 | return (error); |
509 | } | |
510 | ||
428870ff BB |
511 | /* |
512 | * Policy for setting the security label property. | |
513 | * | |
514 | * Returns 0 for success, non-zero for access and other errors. | |
515 | */ | |
34dc7c2f | 516 | static int |
428870ff | 517 | zfs_set_slabel_policy(const char *name, char *strval, cred_t *cr) |
34dc7c2f | 518 | { |
d2c15e84 | 519 | #ifdef HAVE_MLSLABEL |
428870ff BB |
520 | char ds_hexsl[MAXNAMELEN]; |
521 | bslabel_t ds_sl, new_sl; | |
522 | boolean_t new_default = FALSE; | |
523 | uint64_t zoned; | |
524 | int needed_priv = -1; | |
525 | int error; | |
526 | ||
527 | /* First get the existing dataset label. */ | |
528 | error = dsl_prop_get(name, zfs_prop_to_name(ZFS_PROP_MLSLABEL), | |
529 | 1, sizeof (ds_hexsl), &ds_hexsl, NULL); | |
13fe0198 | 530 | if (error != 0) |
2e528b49 | 531 | return (SET_ERROR(EPERM)); |
428870ff BB |
532 | |
533 | if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) | |
534 | new_default = TRUE; | |
535 | ||
536 | /* The label must be translatable */ | |
537 | if (!new_default && (hexstr_to_label(strval, &new_sl) != 0)) | |
2e528b49 | 538 | return (SET_ERROR(EINVAL)); |
428870ff BB |
539 | |
540 | /* | |
541 | * In a non-global zone, disallow attempts to set a label that | |
542 | * doesn't match that of the zone; otherwise no other checks | |
543 | * are needed. | |
544 | */ | |
545 | if (!INGLOBALZONE(curproc)) { | |
546 | if (new_default || !blequal(&new_sl, CR_SL(CRED()))) | |
2e528b49 | 547 | return (SET_ERROR(EPERM)); |
428870ff BB |
548 | return (0); |
549 | } | |
550 | ||
551 | /* | |
552 | * For global-zone datasets (i.e., those whose zoned property is | |
553 | * "off", verify that the specified new label is valid for the | |
554 | * global zone. | |
555 | */ | |
556 | if (dsl_prop_get_integer(name, | |
557 | zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL)) | |
2e528b49 | 558 | return (SET_ERROR(EPERM)); |
428870ff BB |
559 | if (!zoned) { |
560 | if (zfs_check_global_label(name, strval) != 0) | |
2e528b49 | 561 | return (SET_ERROR(EPERM)); |
428870ff BB |
562 | } |
563 | ||
564 | /* | |
565 | * If the existing dataset label is nondefault, check if the | |
566 | * dataset is mounted (label cannot be changed while mounted). | |
0037b49e | 567 | * Get the zfsvfs_t; if there isn't one, then the dataset isn't |
428870ff BB |
568 | * mounted (or isn't a dataset, doesn't exist, ...). |
569 | */ | |
570 | if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) != 0) { | |
571 | objset_t *os; | |
572 | static char *setsl_tag = "setsl_tag"; | |
573 | ||
574 | /* | |
575 | * Try to own the dataset; abort if there is any error, | |
576 | * (e.g., already mounted, in use, or other error). | |
577 | */ | |
b5256303 | 578 | error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE, B_TRUE, |
428870ff | 579 | setsl_tag, &os); |
13fe0198 | 580 | if (error != 0) |
2e528b49 | 581 | return (SET_ERROR(EPERM)); |
428870ff | 582 | |
b5256303 | 583 | dmu_objset_disown(os, B_TRUE, setsl_tag); |
428870ff BB |
584 | |
585 | if (new_default) { | |
586 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
587 | goto out_check; | |
588 | } | |
589 | ||
590 | if (hexstr_to_label(strval, &new_sl) != 0) | |
2e528b49 | 591 | return (SET_ERROR(EPERM)); |
428870ff BB |
592 | |
593 | if (blstrictdom(&ds_sl, &new_sl)) | |
594 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
595 | else if (blstrictdom(&new_sl, &ds_sl)) | |
596 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
597 | } else { | |
598 | /* dataset currently has a default label */ | |
599 | if (!new_default) | |
600 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
601 | } | |
602 | ||
603 | out_check: | |
604 | if (needed_priv != -1) | |
605 | return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL)); | |
606 | return (0); | |
d2c15e84 | 607 | #else |
ecb2b7dc | 608 | return (SET_ERROR(ENOTSUP)); |
d2c15e84 | 609 | #endif /* HAVE_MLSLABEL */ |
428870ff BB |
610 | } |
611 | ||
612 | static int | |
613 | zfs_secpolicy_setprop(const char *dsname, zfs_prop_t prop, nvpair_t *propval, | |
614 | cred_t *cr) | |
615 | { | |
616 | char *strval; | |
617 | ||
34dc7c2f BB |
618 | /* |
619 | * Check permissions for special properties. | |
620 | */ | |
621 | switch (prop) { | |
e75c13c3 BB |
622 | default: |
623 | break; | |
34dc7c2f BB |
624 | case ZFS_PROP_ZONED: |
625 | /* | |
626 | * Disallow setting of 'zoned' from within a local zone. | |
627 | */ | |
628 | if (!INGLOBALZONE(curproc)) | |
2e528b49 | 629 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
630 | break; |
631 | ||
632 | case ZFS_PROP_QUOTA: | |
788eb90c JJ |
633 | case ZFS_PROP_FILESYSTEM_LIMIT: |
634 | case ZFS_PROP_SNAPSHOT_LIMIT: | |
34dc7c2f BB |
635 | if (!INGLOBALZONE(curproc)) { |
636 | uint64_t zoned; | |
eca7b760 | 637 | char setpoint[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f BB |
638 | /* |
639 | * Unprivileged users are allowed to modify the | |
788eb90c | 640 | * limit on things *under* (ie. contained by) |
34dc7c2f BB |
641 | * the thing they own. |
642 | */ | |
428870ff | 643 | if (dsl_prop_get_integer(dsname, "zoned", &zoned, |
34dc7c2f | 644 | setpoint)) |
2e528b49 | 645 | return (SET_ERROR(EPERM)); |
428870ff | 646 | if (!zoned || strlen(dsname) <= strlen(setpoint)) |
2e528b49 | 647 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
648 | } |
649 | break; | |
428870ff BB |
650 | |
651 | case ZFS_PROP_MLSLABEL: | |
652 | if (!is_system_labeled()) | |
2e528b49 | 653 | return (SET_ERROR(EPERM)); |
428870ff BB |
654 | |
655 | if (nvpair_value_string(propval, &strval) == 0) { | |
656 | int err; | |
657 | ||
658 | err = zfs_set_slabel_policy(dsname, strval, CRED()); | |
659 | if (err != 0) | |
660 | return (err); | |
661 | } | |
662 | break; | |
34dc7c2f BB |
663 | } |
664 | ||
428870ff | 665 | return (zfs_secpolicy_write_perms(dsname, zfs_prop_to_name(prop), cr)); |
34dc7c2f BB |
666 | } |
667 | ||
6f1ffb06 MA |
668 | /* ARGSUSED */ |
669 | static int | |
670 | zfs_secpolicy_set_fsacl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f BB |
671 | { |
672 | int error; | |
673 | ||
674 | error = zfs_dozonecheck(zc->zc_name, cr); | |
13fe0198 | 675 | if (error != 0) |
34dc7c2f BB |
676 | return (error); |
677 | ||
678 | /* | |
679 | * permission to set permissions will be evaluated later in | |
680 | * dsl_deleg_can_allow() | |
681 | */ | |
682 | return (0); | |
683 | } | |
684 | ||
6f1ffb06 MA |
685 | /* ARGSUSED */ |
686 | static int | |
687 | zfs_secpolicy_rollback(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f | 688 | { |
428870ff BB |
689 | return (zfs_secpolicy_write_perms(zc->zc_name, |
690 | ZFS_DELEG_PERM_ROLLBACK, cr)); | |
34dc7c2f BB |
691 | } |
692 | ||
6f1ffb06 MA |
693 | /* ARGSUSED */ |
694 | static int | |
695 | zfs_secpolicy_send(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f | 696 | { |
572e2857 BB |
697 | dsl_pool_t *dp; |
698 | dsl_dataset_t *ds; | |
699 | char *cp; | |
700 | int error; | |
701 | ||
702 | /* | |
703 | * Generate the current snapshot name from the given objsetid, then | |
704 | * use that name for the secpolicy/zone checks. | |
705 | */ | |
706 | cp = strchr(zc->zc_name, '@'); | |
707 | if (cp == NULL) | |
2e528b49 | 708 | return (SET_ERROR(EINVAL)); |
13fe0198 MA |
709 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
710 | if (error != 0) | |
572e2857 BB |
711 | return (error); |
712 | ||
572e2857 | 713 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds); |
13fe0198 MA |
714 | if (error != 0) { |
715 | dsl_pool_rele(dp, FTAG); | |
572e2857 | 716 | return (error); |
13fe0198 | 717 | } |
572e2857 BB |
718 | |
719 | dsl_dataset_name(ds, zc->zc_name); | |
720 | ||
721 | error = zfs_secpolicy_write_perms_ds(zc->zc_name, ds, | |
722 | ZFS_DELEG_PERM_SEND, cr); | |
723 | dsl_dataset_rele(ds, FTAG); | |
13fe0198 | 724 | dsl_pool_rele(dp, FTAG); |
572e2857 BB |
725 | |
726 | return (error); | |
34dc7c2f BB |
727 | } |
728 | ||
6f1ffb06 MA |
729 | /* ARGSUSED */ |
730 | static int | |
731 | zfs_secpolicy_send_new(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
732 | { | |
733 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
734 | ZFS_DELEG_PERM_SEND, cr)); | |
735 | } | |
736 | ||
3c9609b3 | 737 | #ifdef HAVE_SMB_SHARE |
6f1ffb06 | 738 | /* ARGSUSED */ |
9babb374 | 739 | static int |
6f1ffb06 | 740 | zfs_secpolicy_deleg_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 BB |
741 | { |
742 | vnode_t *vp; | |
743 | int error; | |
744 | ||
745 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
746 | NO_FOLLOW, NULL, &vp)) != 0) | |
747 | return (error); | |
748 | ||
749 | /* Now make sure mntpnt and dataset are ZFS */ | |
750 | ||
751 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
752 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
753 | zc->zc_name) != 0)) { | |
754 | VN_RELE(vp); | |
2e528b49 | 755 | return (SET_ERROR(EPERM)); |
9babb374 BB |
756 | } |
757 | ||
758 | VN_RELE(vp); | |
759 | return (dsl_deleg_access(zc->zc_name, | |
760 | ZFS_DELEG_PERM_SHARE, cr)); | |
761 | } | |
3c9609b3 | 762 | #endif /* HAVE_SMB_SHARE */ |
9babb374 | 763 | |
34dc7c2f | 764 | int |
6f1ffb06 | 765 | zfs_secpolicy_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 766 | { |
3c9609b3 | 767 | #ifdef HAVE_SMB_SHARE |
34dc7c2f | 768 | if (!INGLOBALZONE(curproc)) |
2e528b49 | 769 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
770 | |
771 | if (secpolicy_nfs(cr) == 0) { | |
772 | return (0); | |
773 | } else { | |
6f1ffb06 | 774 | return (zfs_secpolicy_deleg_share(zc, innvl, cr)); |
9babb374 | 775 | } |
325f0235 | 776 | #else |
2e528b49 | 777 | return (SET_ERROR(ENOTSUP)); |
3c9609b3 | 778 | #endif /* HAVE_SMB_SHARE */ |
9babb374 | 779 | } |
34dc7c2f | 780 | |
9babb374 | 781 | int |
6f1ffb06 | 782 | zfs_secpolicy_smb_acl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 783 | { |
3c9609b3 | 784 | #ifdef HAVE_SMB_SHARE |
9babb374 | 785 | if (!INGLOBALZONE(curproc)) |
2e528b49 | 786 | return (SET_ERROR(EPERM)); |
34dc7c2f | 787 | |
9babb374 BB |
788 | if (secpolicy_smb(cr) == 0) { |
789 | return (0); | |
790 | } else { | |
6f1ffb06 | 791 | return (zfs_secpolicy_deleg_share(zc, innvl, cr)); |
34dc7c2f | 792 | } |
325f0235 | 793 | #else |
2e528b49 | 794 | return (SET_ERROR(ENOTSUP)); |
3c9609b3 | 795 | #endif /* HAVE_SMB_SHARE */ |
34dc7c2f BB |
796 | } |
797 | ||
798 | static int | |
799 | zfs_get_parent(const char *datasetname, char *parent, int parentsize) | |
800 | { | |
801 | char *cp; | |
802 | ||
803 | /* | |
804 | * Remove the @bla or /bla from the end of the name to get the parent. | |
805 | */ | |
806 | (void) strncpy(parent, datasetname, parentsize); | |
807 | cp = strrchr(parent, '@'); | |
808 | if (cp != NULL) { | |
809 | cp[0] = '\0'; | |
810 | } else { | |
811 | cp = strrchr(parent, '/'); | |
812 | if (cp == NULL) | |
2e528b49 | 813 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
814 | cp[0] = '\0'; |
815 | } | |
816 | ||
817 | return (0); | |
818 | } | |
819 | ||
820 | int | |
821 | zfs_secpolicy_destroy_perms(const char *name, cred_t *cr) | |
822 | { | |
823 | int error; | |
824 | ||
825 | if ((error = zfs_secpolicy_write_perms(name, | |
826 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
827 | return (error); | |
828 | ||
829 | return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr)); | |
830 | } | |
831 | ||
6f1ffb06 | 832 | /* ARGSUSED */ |
34dc7c2f | 833 | static int |
6f1ffb06 | 834 | zfs_secpolicy_destroy(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
835 | { |
836 | return (zfs_secpolicy_destroy_perms(zc->zc_name, cr)); | |
837 | } | |
838 | ||
839 | /* | |
428870ff | 840 | * Destroying snapshots with delegated permissions requires |
6f1ffb06 | 841 | * descendant mount and destroy permissions. |
34dc7c2f | 842 | */ |
6f1ffb06 | 843 | /* ARGSUSED */ |
34dc7c2f | 844 | static int |
6f1ffb06 | 845 | zfs_secpolicy_destroy_snaps(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 846 | { |
6f1ffb06 MA |
847 | nvlist_t *snaps; |
848 | nvpair_t *pair, *nextpair; | |
849 | int error = 0; | |
428870ff | 850 | |
6f1ffb06 | 851 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) |
2e528b49 | 852 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
853 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; |
854 | pair = nextpair) { | |
6f1ffb06 | 855 | nextpair = nvlist_next_nvpair(snaps, pair); |
da536844 MA |
856 | error = zfs_secpolicy_destroy_perms(nvpair_name(pair), cr); |
857 | if (error == ENOENT) { | |
6f1ffb06 MA |
858 | /* |
859 | * Ignore any snapshots that don't exist (we consider | |
860 | * them "already destroyed"). Remove the name from the | |
861 | * nvl here in case the snapshot is created between | |
862 | * now and when we try to destroy it (in which case | |
863 | * we don't want to destroy it since we haven't | |
864 | * checked for permission). | |
865 | */ | |
866 | fnvlist_remove_nvpair(snaps, pair); | |
867 | error = 0; | |
6f1ffb06 | 868 | } |
6f1ffb06 MA |
869 | if (error != 0) |
870 | break; | |
871 | } | |
428870ff | 872 | |
428870ff | 873 | return (error); |
34dc7c2f BB |
874 | } |
875 | ||
876 | int | |
877 | zfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr) | |
878 | { | |
eca7b760 | 879 | char parentname[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f BB |
880 | int error; |
881 | ||
882 | if ((error = zfs_secpolicy_write_perms(from, | |
883 | ZFS_DELEG_PERM_RENAME, cr)) != 0) | |
884 | return (error); | |
885 | ||
886 | if ((error = zfs_secpolicy_write_perms(from, | |
887 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
888 | return (error); | |
889 | ||
890 | if ((error = zfs_get_parent(to, parentname, | |
891 | sizeof (parentname))) != 0) | |
892 | return (error); | |
893 | ||
894 | if ((error = zfs_secpolicy_write_perms(parentname, | |
895 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
896 | return (error); | |
897 | ||
898 | if ((error = zfs_secpolicy_write_perms(parentname, | |
899 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
900 | return (error); | |
901 | ||
902 | return (error); | |
903 | } | |
904 | ||
6f1ffb06 | 905 | /* ARGSUSED */ |
34dc7c2f | 906 | static int |
6f1ffb06 | 907 | zfs_secpolicy_rename(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
908 | { |
909 | return (zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr)); | |
910 | } | |
911 | ||
6f1ffb06 | 912 | /* ARGSUSED */ |
34dc7c2f | 913 | static int |
6f1ffb06 | 914 | zfs_secpolicy_promote(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 915 | { |
13fe0198 MA |
916 | dsl_pool_t *dp; |
917 | dsl_dataset_t *clone; | |
34dc7c2f BB |
918 | int error; |
919 | ||
920 | error = zfs_secpolicy_write_perms(zc->zc_name, | |
921 | ZFS_DELEG_PERM_PROMOTE, cr); | |
13fe0198 MA |
922 | if (error != 0) |
923 | return (error); | |
924 | ||
925 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); | |
926 | if (error != 0) | |
34dc7c2f BB |
927 | return (error); |
928 | ||
13fe0198 | 929 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &clone); |
34dc7c2f BB |
930 | |
931 | if (error == 0) { | |
eca7b760 | 932 | char parentname[ZFS_MAX_DATASET_NAME_LEN]; |
13fe0198 | 933 | dsl_dataset_t *origin = NULL; |
34dc7c2f | 934 | dsl_dir_t *dd; |
13fe0198 | 935 | dd = clone->ds_dir; |
34dc7c2f | 936 | |
b128c09f | 937 | error = dsl_dataset_hold_obj(dd->dd_pool, |
d683ddbb | 938 | dsl_dir_phys(dd)->dd_origin_obj, FTAG, &origin); |
13fe0198 MA |
939 | if (error != 0) { |
940 | dsl_dataset_rele(clone, FTAG); | |
941 | dsl_pool_rele(dp, FTAG); | |
34dc7c2f BB |
942 | return (error); |
943 | } | |
944 | ||
13fe0198 | 945 | error = zfs_secpolicy_write_perms_ds(zc->zc_name, clone, |
34dc7c2f BB |
946 | ZFS_DELEG_PERM_MOUNT, cr); |
947 | ||
13fe0198 MA |
948 | dsl_dataset_name(origin, parentname); |
949 | if (error == 0) { | |
950 | error = zfs_secpolicy_write_perms_ds(parentname, origin, | |
34dc7c2f | 951 | ZFS_DELEG_PERM_PROMOTE, cr); |
13fe0198 MA |
952 | } |
953 | dsl_dataset_rele(clone, FTAG); | |
954 | dsl_dataset_rele(origin, FTAG); | |
34dc7c2f | 955 | } |
13fe0198 | 956 | dsl_pool_rele(dp, FTAG); |
34dc7c2f BB |
957 | return (error); |
958 | } | |
959 | ||
6f1ffb06 | 960 | /* ARGSUSED */ |
34dc7c2f | 961 | static int |
6f1ffb06 | 962 | zfs_secpolicy_recv(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
963 | { |
964 | int error; | |
965 | ||
966 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
967 | ZFS_DELEG_PERM_RECEIVE, cr)) != 0) | |
968 | return (error); | |
969 | ||
970 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
971 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
972 | return (error); | |
973 | ||
974 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
975 | ZFS_DELEG_PERM_CREATE, cr)); | |
976 | } | |
977 | ||
43e52edd BB |
978 | /* ARGSUSED */ |
979 | static int | |
980 | zfs_secpolicy_recv_new(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
981 | { | |
982 | return (zfs_secpolicy_recv(zc, innvl, cr)); | |
983 | } | |
984 | ||
34dc7c2f BB |
985 | int |
986 | zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr) | |
987 | { | |
428870ff BB |
988 | return (zfs_secpolicy_write_perms(name, |
989 | ZFS_DELEG_PERM_SNAPSHOT, cr)); | |
34dc7c2f BB |
990 | } |
991 | ||
6f1ffb06 MA |
992 | /* |
993 | * Check for permission to create each snapshot in the nvlist. | |
994 | */ | |
995 | /* ARGSUSED */ | |
34dc7c2f | 996 | static int |
6f1ffb06 | 997 | zfs_secpolicy_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 998 | { |
6f1ffb06 MA |
999 | nvlist_t *snaps; |
1000 | int error = 0; | |
1001 | nvpair_t *pair; | |
1002 | ||
1003 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) | |
2e528b49 | 1004 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
1005 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; |
1006 | pair = nvlist_next_nvpair(snaps, pair)) { | |
1007 | char *name = nvpair_name(pair); | |
1008 | char *atp = strchr(name, '@'); | |
34dc7c2f | 1009 | |
6f1ffb06 | 1010 | if (atp == NULL) { |
2e528b49 | 1011 | error = SET_ERROR(EINVAL); |
6f1ffb06 MA |
1012 | break; |
1013 | } | |
1014 | *atp = '\0'; | |
1015 | error = zfs_secpolicy_snapshot_perms(name, cr); | |
1016 | *atp = '@'; | |
1017 | if (error != 0) | |
1018 | break; | |
1019 | } | |
1020 | return (error); | |
1021 | } | |
1022 | ||
da536844 MA |
1023 | /* |
1024 | * Check for permission to create each snapshot in the nvlist. | |
1025 | */ | |
1026 | /* ARGSUSED */ | |
1027 | static int | |
1028 | zfs_secpolicy_bookmark(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1029 | { | |
1030 | int error = 0; | |
da536844 | 1031 | |
1c27024e | 1032 | for (nvpair_t *pair = nvlist_next_nvpair(innvl, NULL); |
da536844 MA |
1033 | pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { |
1034 | char *name = nvpair_name(pair); | |
1035 | char *hashp = strchr(name, '#'); | |
1036 | ||
1037 | if (hashp == NULL) { | |
1038 | error = SET_ERROR(EINVAL); | |
1039 | break; | |
1040 | } | |
1041 | *hashp = '\0'; | |
1042 | error = zfs_secpolicy_write_perms(name, | |
1043 | ZFS_DELEG_PERM_BOOKMARK, cr); | |
1044 | *hashp = '#'; | |
1045 | if (error != 0) | |
1046 | break; | |
1047 | } | |
1048 | return (error); | |
1049 | } | |
1050 | ||
1051 | /* ARGSUSED */ | |
1052 | static int | |
1053 | zfs_secpolicy_destroy_bookmarks(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1054 | { | |
1055 | nvpair_t *pair, *nextpair; | |
1056 | int error = 0; | |
1057 | ||
1058 | for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL; | |
1059 | pair = nextpair) { | |
1060 | char *name = nvpair_name(pair); | |
1061 | char *hashp = strchr(name, '#'); | |
1062 | nextpair = nvlist_next_nvpair(innvl, pair); | |
1063 | ||
1064 | if (hashp == NULL) { | |
1065 | error = SET_ERROR(EINVAL); | |
1066 | break; | |
1067 | } | |
1068 | ||
1069 | *hashp = '\0'; | |
1070 | error = zfs_secpolicy_write_perms(name, | |
1071 | ZFS_DELEG_PERM_DESTROY, cr); | |
1072 | *hashp = '#'; | |
1073 | if (error == ENOENT) { | |
1074 | /* | |
1075 | * Ignore any filesystems that don't exist (we consider | |
1076 | * their bookmarks "already destroyed"). Remove | |
1077 | * the name from the nvl here in case the filesystem | |
1078 | * is created between now and when we try to destroy | |
1079 | * the bookmark (in which case we don't want to | |
1080 | * destroy it since we haven't checked for permission). | |
1081 | */ | |
1082 | fnvlist_remove_nvpair(innvl, pair); | |
1083 | error = 0; | |
1084 | } | |
1085 | if (error != 0) | |
1086 | break; | |
1087 | } | |
1088 | ||
1089 | return (error); | |
1090 | } | |
1091 | ||
6f1ffb06 MA |
1092 | /* ARGSUSED */ |
1093 | static int | |
1094 | zfs_secpolicy_log_history(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1095 | { | |
1096 | /* | |
1097 | * Even root must have a proper TSD so that we know what pool | |
1098 | * to log to. | |
1099 | */ | |
1100 | if (tsd_get(zfs_allow_log_key) == NULL) | |
2e528b49 | 1101 | return (SET_ERROR(EPERM)); |
6f1ffb06 | 1102 | return (0); |
34dc7c2f BB |
1103 | } |
1104 | ||
1105 | static int | |
6f1ffb06 | 1106 | zfs_secpolicy_create_clone(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 1107 | { |
eca7b760 | 1108 | char parentname[ZFS_MAX_DATASET_NAME_LEN]; |
428870ff | 1109 | int error; |
6f1ffb06 | 1110 | char *origin; |
34dc7c2f BB |
1111 | |
1112 | if ((error = zfs_get_parent(zc->zc_name, parentname, | |
1113 | sizeof (parentname))) != 0) | |
1114 | return (error); | |
1115 | ||
6f1ffb06 MA |
1116 | if (nvlist_lookup_string(innvl, "origin", &origin) == 0 && |
1117 | (error = zfs_secpolicy_write_perms(origin, | |
1118 | ZFS_DELEG_PERM_CLONE, cr)) != 0) | |
1119 | return (error); | |
34dc7c2f BB |
1120 | |
1121 | if ((error = zfs_secpolicy_write_perms(parentname, | |
1122 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
1123 | return (error); | |
1124 | ||
6f1ffb06 MA |
1125 | return (zfs_secpolicy_write_perms(parentname, |
1126 | ZFS_DELEG_PERM_MOUNT, cr)); | |
34dc7c2f BB |
1127 | } |
1128 | ||
34dc7c2f BB |
1129 | /* |
1130 | * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires | |
1131 | * SYS_CONFIG privilege, which is not available in a local zone. | |
1132 | */ | |
1133 | /* ARGSUSED */ | |
1134 | static int | |
6f1ffb06 | 1135 | zfs_secpolicy_config(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1136 | { |
1137 | if (secpolicy_sys_config(cr, B_FALSE) != 0) | |
2e528b49 | 1138 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
1139 | |
1140 | return (0); | |
1141 | } | |
1142 | ||
572e2857 BB |
1143 | /* |
1144 | * Policy for object to name lookups. | |
1145 | */ | |
1146 | /* ARGSUSED */ | |
1147 | static int | |
6f1ffb06 | 1148 | zfs_secpolicy_diff(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
572e2857 BB |
1149 | { |
1150 | int error; | |
1151 | ||
1152 | if ((error = secpolicy_sys_config(cr, B_FALSE)) == 0) | |
1153 | return (0); | |
1154 | ||
1155 | error = zfs_secpolicy_write_perms(zc->zc_name, ZFS_DELEG_PERM_DIFF, cr); | |
1156 | return (error); | |
1157 | } | |
1158 | ||
34dc7c2f BB |
1159 | /* |
1160 | * Policy for fault injection. Requires all privileges. | |
1161 | */ | |
1162 | /* ARGSUSED */ | |
1163 | static int | |
6f1ffb06 | 1164 | zfs_secpolicy_inject(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1165 | { |
1166 | return (secpolicy_zinject(cr)); | |
1167 | } | |
1168 | ||
6f1ffb06 | 1169 | /* ARGSUSED */ |
34dc7c2f | 1170 | static int |
6f1ffb06 | 1171 | zfs_secpolicy_inherit_prop(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1172 | { |
1173 | zfs_prop_t prop = zfs_name_to_prop(zc->zc_value); | |
1174 | ||
1175 | if (prop == ZPROP_INVAL) { | |
1176 | if (!zfs_prop_user(zc->zc_value)) | |
2e528b49 | 1177 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1178 | return (zfs_secpolicy_write_perms(zc->zc_name, |
1179 | ZFS_DELEG_PERM_USERPROP, cr)); | |
1180 | } else { | |
428870ff BB |
1181 | return (zfs_secpolicy_setprop(zc->zc_name, prop, |
1182 | NULL, cr)); | |
34dc7c2f BB |
1183 | } |
1184 | } | |
1185 | ||
9babb374 | 1186 | static int |
6f1ffb06 | 1187 | zfs_secpolicy_userspace_one(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1188 | { |
6f1ffb06 | 1189 | int err = zfs_secpolicy_read(zc, innvl, cr); |
9babb374 BB |
1190 | if (err) |
1191 | return (err); | |
1192 | ||
1193 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
2e528b49 | 1194 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
1195 | |
1196 | if (zc->zc_value[0] == 0) { | |
1197 | /* | |
1198 | * They are asking about a posix uid/gid. If it's | |
1199 | * themself, allow it. | |
1200 | */ | |
1201 | if (zc->zc_objset_type == ZFS_PROP_USERUSED || | |
1de321e6 JX |
1202 | zc->zc_objset_type == ZFS_PROP_USERQUOTA || |
1203 | zc->zc_objset_type == ZFS_PROP_USEROBJUSED || | |
1204 | zc->zc_objset_type == ZFS_PROP_USEROBJQUOTA) { | |
9babb374 BB |
1205 | if (zc->zc_guid == crgetuid(cr)) |
1206 | return (0); | |
9c5167d1 NF |
1207 | } else if (zc->zc_objset_type == ZFS_PROP_GROUPUSED || |
1208 | zc->zc_objset_type == ZFS_PROP_GROUPQUOTA || | |
1209 | zc->zc_objset_type == ZFS_PROP_GROUPOBJUSED || | |
1210 | zc->zc_objset_type == ZFS_PROP_GROUPOBJQUOTA) { | |
9babb374 BB |
1211 | if (groupmember(zc->zc_guid, cr)) |
1212 | return (0); | |
1213 | } | |
9c5167d1 | 1214 | /* else is for project quota/used */ |
9babb374 BB |
1215 | } |
1216 | ||
1217 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
1218 | userquota_perms[zc->zc_objset_type], cr)); | |
1219 | } | |
1220 | ||
1221 | static int | |
6f1ffb06 | 1222 | zfs_secpolicy_userspace_many(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1223 | { |
6f1ffb06 | 1224 | int err = zfs_secpolicy_read(zc, innvl, cr); |
9babb374 BB |
1225 | if (err) |
1226 | return (err); | |
1227 | ||
1228 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
2e528b49 | 1229 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
1230 | |
1231 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
1232 | userquota_perms[zc->zc_objset_type], cr)); | |
1233 | } | |
1234 | ||
6f1ffb06 | 1235 | /* ARGSUSED */ |
9babb374 | 1236 | static int |
6f1ffb06 | 1237 | zfs_secpolicy_userspace_upgrade(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1238 | { |
428870ff BB |
1239 | return (zfs_secpolicy_setprop(zc->zc_name, ZFS_PROP_VERSION, |
1240 | NULL, cr)); | |
9babb374 BB |
1241 | } |
1242 | ||
6f1ffb06 | 1243 | /* ARGSUSED */ |
45d1cae3 | 1244 | static int |
6f1ffb06 | 1245 | zfs_secpolicy_hold(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
45d1cae3 | 1246 | { |
13fe0198 MA |
1247 | nvpair_t *pair; |
1248 | nvlist_t *holds; | |
1249 | int error; | |
1250 | ||
1251 | error = nvlist_lookup_nvlist(innvl, "holds", &holds); | |
1252 | if (error != 0) | |
2e528b49 | 1253 | return (SET_ERROR(EINVAL)); |
13fe0198 MA |
1254 | |
1255 | for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL; | |
1256 | pair = nvlist_next_nvpair(holds, pair)) { | |
eca7b760 | 1257 | char fsname[ZFS_MAX_DATASET_NAME_LEN]; |
13fe0198 MA |
1258 | error = dmu_fsname(nvpair_name(pair), fsname); |
1259 | if (error != 0) | |
1260 | return (error); | |
1261 | error = zfs_secpolicy_write_perms(fsname, | |
1262 | ZFS_DELEG_PERM_HOLD, cr); | |
1263 | if (error != 0) | |
1264 | return (error); | |
1265 | } | |
1266 | return (0); | |
45d1cae3 BB |
1267 | } |
1268 | ||
6f1ffb06 | 1269 | /* ARGSUSED */ |
45d1cae3 | 1270 | static int |
6f1ffb06 | 1271 | zfs_secpolicy_release(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
45d1cae3 | 1272 | { |
13fe0198 MA |
1273 | nvpair_t *pair; |
1274 | int error; | |
1275 | ||
1276 | for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL; | |
1277 | pair = nvlist_next_nvpair(innvl, pair)) { | |
eca7b760 | 1278 | char fsname[ZFS_MAX_DATASET_NAME_LEN]; |
13fe0198 MA |
1279 | error = dmu_fsname(nvpair_name(pair), fsname); |
1280 | if (error != 0) | |
1281 | return (error); | |
1282 | error = zfs_secpolicy_write_perms(fsname, | |
1283 | ZFS_DELEG_PERM_RELEASE, cr); | |
1284 | if (error != 0) | |
1285 | return (error); | |
1286 | } | |
1287 | return (0); | |
45d1cae3 BB |
1288 | } |
1289 | ||
572e2857 BB |
1290 | /* |
1291 | * Policy for allowing temporary snapshots to be taken or released | |
1292 | */ | |
1293 | static int | |
6f1ffb06 | 1294 | zfs_secpolicy_tmp_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
572e2857 BB |
1295 | { |
1296 | /* | |
1297 | * A temporary snapshot is the same as a snapshot, | |
1298 | * hold, destroy and release all rolled into one. | |
1299 | * Delegated diff alone is sufficient that we allow this. | |
1300 | */ | |
1301 | int error; | |
1302 | ||
1303 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
1304 | ZFS_DELEG_PERM_DIFF, cr)) == 0) | |
1305 | return (0); | |
1306 | ||
6f1ffb06 | 1307 | error = zfs_secpolicy_snapshot_perms(zc->zc_name, cr); |
13fe0198 | 1308 | if (error == 0) |
6f1ffb06 | 1309 | error = zfs_secpolicy_hold(zc, innvl, cr); |
13fe0198 | 1310 | if (error == 0) |
6f1ffb06 | 1311 | error = zfs_secpolicy_release(zc, innvl, cr); |
13fe0198 | 1312 | if (error == 0) |
6f1ffb06 | 1313 | error = zfs_secpolicy_destroy(zc, innvl, cr); |
572e2857 BB |
1314 | return (error); |
1315 | } | |
1316 | ||
b5256303 TC |
1317 | static int |
1318 | zfs_secpolicy_load_key(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1319 | { | |
1320 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
1321 | ZFS_DELEG_PERM_LOAD_KEY, cr)); | |
1322 | } | |
1323 | ||
1324 | static int | |
1325 | zfs_secpolicy_change_key(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1326 | { | |
1327 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
1328 | ZFS_DELEG_PERM_CHANGE_KEY, cr)); | |
1329 | } | |
1330 | ||
34dc7c2f BB |
1331 | /* |
1332 | * Returns the nvlist as specified by the user in the zfs_cmd_t. | |
1333 | */ | |
1334 | static int | |
9babb374 | 1335 | get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp) |
34dc7c2f BB |
1336 | { |
1337 | char *packed; | |
1338 | int error; | |
1339 | nvlist_t *list = NULL; | |
1340 | ||
1341 | /* | |
1342 | * Read in and unpack the user-supplied nvlist. | |
1343 | */ | |
1344 | if (size == 0) | |
2e528b49 | 1345 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 1346 | |
77aef6f6 | 1347 | packed = vmem_alloc(size, KM_SLEEP); |
34dc7c2f | 1348 | |
9babb374 BB |
1349 | if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size, |
1350 | iflag)) != 0) { | |
77aef6f6 | 1351 | vmem_free(packed, size); |
0de7c552 | 1352 | return (SET_ERROR(EFAULT)); |
34dc7c2f BB |
1353 | } |
1354 | ||
1355 | if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) { | |
77aef6f6 | 1356 | vmem_free(packed, size); |
34dc7c2f BB |
1357 | return (error); |
1358 | } | |
1359 | ||
77aef6f6 | 1360 | vmem_free(packed, size); |
34dc7c2f BB |
1361 | |
1362 | *nvp = list; | |
1363 | return (0); | |
1364 | } | |
1365 | ||
6f1ffb06 MA |
1366 | /* |
1367 | * Reduce the size of this nvlist until it can be serialized in 'max' bytes. | |
1368 | * Entries will be removed from the end of the nvlist, and one int32 entry | |
1369 | * named "N_MORE_ERRORS" will be added indicating how many entries were | |
1370 | * removed. | |
1371 | */ | |
428870ff | 1372 | static int |
6f1ffb06 | 1373 | nvlist_smush(nvlist_t *errors, size_t max) |
428870ff BB |
1374 | { |
1375 | size_t size; | |
1376 | ||
6f1ffb06 | 1377 | size = fnvlist_size(errors); |
428870ff | 1378 | |
6f1ffb06 | 1379 | if (size > max) { |
428870ff BB |
1380 | nvpair_t *more_errors; |
1381 | int n = 0; | |
1382 | ||
6f1ffb06 | 1383 | if (max < 1024) |
2e528b49 | 1384 | return (SET_ERROR(ENOMEM)); |
428870ff | 1385 | |
6f1ffb06 MA |
1386 | fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, 0); |
1387 | more_errors = nvlist_prev_nvpair(errors, NULL); | |
428870ff BB |
1388 | |
1389 | do { | |
6f1ffb06 | 1390 | nvpair_t *pair = nvlist_prev_nvpair(errors, |
428870ff | 1391 | more_errors); |
6f1ffb06 | 1392 | fnvlist_remove_nvpair(errors, pair); |
428870ff | 1393 | n++; |
6f1ffb06 MA |
1394 | size = fnvlist_size(errors); |
1395 | } while (size > max); | |
428870ff | 1396 | |
6f1ffb06 MA |
1397 | fnvlist_remove_nvpair(errors, more_errors); |
1398 | fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, n); | |
1399 | ASSERT3U(fnvlist_size(errors), <=, max); | |
428870ff BB |
1400 | } |
1401 | ||
1402 | return (0); | |
1403 | } | |
1404 | ||
34dc7c2f BB |
1405 | static int |
1406 | put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl) | |
1407 | { | |
1408 | char *packed = NULL; | |
428870ff | 1409 | int error = 0; |
34dc7c2f | 1410 | size_t size; |
34dc7c2f | 1411 | |
6f1ffb06 | 1412 | size = fnvlist_size(nvl); |
34dc7c2f BB |
1413 | |
1414 | if (size > zc->zc_nvlist_dst_size) { | |
2e528b49 | 1415 | error = SET_ERROR(ENOMEM); |
34dc7c2f | 1416 | } else { |
6f1ffb06 | 1417 | packed = fnvlist_pack(nvl, &size); |
428870ff BB |
1418 | if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst, |
1419 | size, zc->zc_iflags) != 0) | |
2e528b49 | 1420 | error = SET_ERROR(EFAULT); |
6f1ffb06 | 1421 | fnvlist_pack_free(packed, size); |
34dc7c2f BB |
1422 | } |
1423 | ||
1424 | zc->zc_nvlist_dst_size = size; | |
6f1ffb06 | 1425 | zc->zc_nvlist_dst_filled = B_TRUE; |
34dc7c2f BB |
1426 | return (error); |
1427 | } | |
1428 | ||
d99a0153 CW |
1429 | int |
1430 | getzfsvfs_impl(objset_t *os, zfsvfs_t **zfvp) | |
9babb374 | 1431 | { |
d99a0153 | 1432 | int error = 0; |
428870ff | 1433 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
2e528b49 | 1434 | return (SET_ERROR(EINVAL)); |
428870ff | 1435 | } |
9babb374 | 1436 | |
428870ff | 1437 | mutex_enter(&os->os_user_ptr_lock); |
0037b49e | 1438 | *zfvp = dmu_objset_get_user(os); |
061460df | 1439 | /* bump s_active only when non-zero to prevent umount race */ |
0037b49e BB |
1440 | if (*zfvp == NULL || (*zfvp)->z_sb == NULL || |
1441 | !atomic_inc_not_zero(&((*zfvp)->z_sb->s_active))) { | |
2e528b49 | 1442 | error = SET_ERROR(ESRCH); |
9babb374 | 1443 | } |
428870ff | 1444 | mutex_exit(&os->os_user_ptr_lock); |
d99a0153 CW |
1445 | return (error); |
1446 | } | |
1447 | ||
8d103d88 | 1448 | int |
d99a0153 CW |
1449 | getzfsvfs(const char *dsname, zfsvfs_t **zfvp) |
1450 | { | |
1451 | objset_t *os; | |
1452 | int error; | |
1453 | ||
1454 | error = dmu_objset_hold(dsname, FTAG, &os); | |
1455 | if (error != 0) | |
1456 | return (error); | |
1457 | ||
1458 | error = getzfsvfs_impl(os, zfvp); | |
428870ff | 1459 | dmu_objset_rele(os, FTAG); |
9babb374 BB |
1460 | return (error); |
1461 | } | |
1462 | ||
1463 | /* | |
0037b49e | 1464 | * Find a zfsvfs_t for a mounted filesystem, or create our own, in which |
2cf7f52b | 1465 | * case its z_sb will be NULL, and it will be opened as the owner. |
9ae529ec CS |
1466 | * If 'writer' is set, the z_teardown_lock will be held for RW_WRITER, |
1467 | * which prevents all inode ops from running. | |
9babb374 BB |
1468 | */ |
1469 | static int | |
f298b24d | 1470 | zfsvfs_hold(const char *name, void *tag, zfsvfs_t **zfvp, boolean_t writer) |
9babb374 BB |
1471 | { |
1472 | int error = 0; | |
9babb374 | 1473 | |
f298b24d | 1474 | if (getzfsvfs(name, zfvp) != 0) |
163a8c28 | 1475 | error = zfsvfs_create(name, B_FALSE, zfvp); |
9babb374 | 1476 | if (error == 0) { |
0037b49e | 1477 | rrm_enter(&(*zfvp)->z_teardown_lock, (writer) ? RW_WRITER : |
572e2857 | 1478 | RW_READER, tag); |
0037b49e | 1479 | if ((*zfvp)->z_unmounted) { |
9babb374 BB |
1480 | /* |
1481 | * XXX we could probably try again, since the unmounting | |
1482 | * thread should be just about to disassociate the | |
0037b49e | 1483 | * objset from the zfsvfs. |
9babb374 | 1484 | */ |
0037b49e | 1485 | rrm_exit(&(*zfvp)->z_teardown_lock, tag); |
2e528b49 | 1486 | return (SET_ERROR(EBUSY)); |
9babb374 BB |
1487 | } |
1488 | } | |
1489 | return (error); | |
1490 | } | |
1491 | ||
1492 | static void | |
f298b24d | 1493 | zfsvfs_rele(zfsvfs_t *zfsvfs, void *tag) |
9babb374 | 1494 | { |
0037b49e | 1495 | rrm_exit(&zfsvfs->z_teardown_lock, tag); |
9babb374 | 1496 | |
0037b49e BB |
1497 | if (zfsvfs->z_sb) { |
1498 | deactivate_super(zfsvfs->z_sb); | |
9babb374 | 1499 | } else { |
b5256303 | 1500 | dmu_objset_disown(zfsvfs->z_os, B_TRUE, zfsvfs); |
f298b24d | 1501 | zfsvfs_free(zfsvfs); |
9babb374 BB |
1502 | } |
1503 | } | |
1504 | ||
34dc7c2f BB |
1505 | static int |
1506 | zfs_ioc_pool_create(zfs_cmd_t *zc) | |
1507 | { | |
1508 | int error; | |
1509 | nvlist_t *config, *props = NULL; | |
b128c09f BB |
1510 | nvlist_t *rootprops = NULL; |
1511 | nvlist_t *zplprops = NULL; | |
b5256303 | 1512 | dsl_crypto_params_t *dcp = NULL; |
34dc7c2f | 1513 | |
c65aa5b2 BB |
1514 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, |
1515 | zc->zc_iflags, &config))) | |
34dc7c2f BB |
1516 | return (error); |
1517 | ||
1518 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1519 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1520 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1521 | nvlist_free(config); |
1522 | return (error); | |
1523 | } | |
1524 | ||
b128c09f BB |
1525 | if (props) { |
1526 | nvlist_t *nvl = NULL; | |
b5256303 | 1527 | nvlist_t *hidden_args = NULL; |
b128c09f BB |
1528 | uint64_t version = SPA_VERSION; |
1529 | ||
1530 | (void) nvlist_lookup_uint64(props, | |
1531 | zpool_prop_to_name(ZPOOL_PROP_VERSION), &version); | |
9ae529ec | 1532 | if (!SPA_VERSION_IS_SUPPORTED(version)) { |
2e528b49 | 1533 | error = SET_ERROR(EINVAL); |
b128c09f BB |
1534 | goto pool_props_bad; |
1535 | } | |
1536 | (void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl); | |
1537 | if (nvl) { | |
1538 | error = nvlist_dup(nvl, &rootprops, KM_SLEEP); | |
1539 | if (error != 0) { | |
1540 | nvlist_free(config); | |
1541 | nvlist_free(props); | |
1542 | return (error); | |
1543 | } | |
1544 | (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS); | |
1545 | } | |
b5256303 TC |
1546 | |
1547 | (void) nvlist_lookup_nvlist(props, ZPOOL_HIDDEN_ARGS, | |
1548 | &hidden_args); | |
1549 | error = dsl_crypto_params_create_nvlist(DCP_CMD_NONE, | |
1550 | rootprops, hidden_args, &dcp); | |
1551 | if (error != 0) { | |
1552 | nvlist_free(config); | |
1553 | nvlist_free(props); | |
1554 | return (error); | |
1555 | } | |
1556 | (void) nvlist_remove_all(props, ZPOOL_HIDDEN_ARGS); | |
1557 | ||
b128c09f BB |
1558 | VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
1559 | error = zfs_fill_zplprops_root(version, rootprops, | |
1560 | zplprops, NULL); | |
13fe0198 | 1561 | if (error != 0) |
b128c09f BB |
1562 | goto pool_props_bad; |
1563 | } | |
1564 | ||
b5256303 | 1565 | error = spa_create(zc->zc_name, config, props, zplprops, dcp); |
b128c09f BB |
1566 | |
1567 | /* | |
1568 | * Set the remaining root properties | |
1569 | */ | |
428870ff BB |
1570 | if (!error && (error = zfs_set_prop_nvlist(zc->zc_name, |
1571 | ZPROP_SRC_LOCAL, rootprops, NULL)) != 0) | |
b128c09f | 1572 | (void) spa_destroy(zc->zc_name); |
34dc7c2f | 1573 | |
b128c09f BB |
1574 | pool_props_bad: |
1575 | nvlist_free(rootprops); | |
1576 | nvlist_free(zplprops); | |
34dc7c2f | 1577 | nvlist_free(config); |
b128c09f | 1578 | nvlist_free(props); |
b5256303 | 1579 | dsl_crypto_params_free(dcp, !!error); |
34dc7c2f BB |
1580 | |
1581 | return (error); | |
1582 | } | |
1583 | ||
1584 | static int | |
1585 | zfs_ioc_pool_destroy(zfs_cmd_t *zc) | |
1586 | { | |
1587 | int error; | |
1588 | zfs_log_history(zc); | |
1589 | error = spa_destroy(zc->zc_name); | |
a0bd735a | 1590 | |
34dc7c2f BB |
1591 | return (error); |
1592 | } | |
1593 | ||
1594 | static int | |
1595 | zfs_ioc_pool_import(zfs_cmd_t *zc) | |
1596 | { | |
34dc7c2f BB |
1597 | nvlist_t *config, *props = NULL; |
1598 | uint64_t guid; | |
428870ff | 1599 | int error; |
34dc7c2f BB |
1600 | |
1601 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1602 | zc->zc_iflags, &config)) != 0) |
34dc7c2f BB |
1603 | return (error); |
1604 | ||
1605 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1606 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1607 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1608 | nvlist_free(config); |
1609 | return (error); | |
1610 | } | |
1611 | ||
1612 | if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 || | |
1613 | guid != zc->zc_guid) | |
2e528b49 | 1614 | error = SET_ERROR(EINVAL); |
34dc7c2f | 1615 | else |
572e2857 | 1616 | error = spa_import(zc->zc_name, config, props, zc->zc_cookie); |
34dc7c2f | 1617 | |
572e2857 BB |
1618 | if (zc->zc_nvlist_dst != 0) { |
1619 | int err; | |
1620 | ||
1621 | if ((err = put_nvlist(zc, config)) != 0) | |
1622 | error = err; | |
1623 | } | |
428870ff | 1624 | |
34dc7c2f | 1625 | nvlist_free(config); |
8a5fc748 | 1626 | nvlist_free(props); |
34dc7c2f BB |
1627 | |
1628 | return (error); | |
1629 | } | |
1630 | ||
1631 | static int | |
1632 | zfs_ioc_pool_export(zfs_cmd_t *zc) | |
1633 | { | |
1634 | int error; | |
b128c09f | 1635 | boolean_t force = (boolean_t)zc->zc_cookie; |
fb5f0bc8 | 1636 | boolean_t hardforce = (boolean_t)zc->zc_guid; |
b128c09f | 1637 | |
34dc7c2f | 1638 | zfs_log_history(zc); |
fb5f0bc8 | 1639 | error = spa_export(zc->zc_name, NULL, force, hardforce); |
a0bd735a | 1640 | |
34dc7c2f BB |
1641 | return (error); |
1642 | } | |
1643 | ||
1644 | static int | |
1645 | zfs_ioc_pool_configs(zfs_cmd_t *zc) | |
1646 | { | |
1647 | nvlist_t *configs; | |
1648 | int error; | |
1649 | ||
1650 | if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL) | |
2e528b49 | 1651 | return (SET_ERROR(EEXIST)); |
34dc7c2f BB |
1652 | |
1653 | error = put_nvlist(zc, configs); | |
1654 | ||
1655 | nvlist_free(configs); | |
1656 | ||
1657 | return (error); | |
1658 | } | |
1659 | ||
9ae529ec CS |
1660 | /* |
1661 | * inputs: | |
1662 | * zc_name name of the pool | |
1663 | * | |
1664 | * outputs: | |
1665 | * zc_cookie real errno | |
1666 | * zc_nvlist_dst config nvlist | |
1667 | * zc_nvlist_dst_size size of config nvlist | |
1668 | */ | |
34dc7c2f BB |
1669 | static int |
1670 | zfs_ioc_pool_stats(zfs_cmd_t *zc) | |
1671 | { | |
1672 | nvlist_t *config; | |
1673 | int error; | |
1674 | int ret = 0; | |
1675 | ||
1676 | error = spa_get_stats(zc->zc_name, &config, zc->zc_value, | |
1677 | sizeof (zc->zc_value)); | |
1678 | ||
1679 | if (config != NULL) { | |
1680 | ret = put_nvlist(zc, config); | |
1681 | nvlist_free(config); | |
1682 | ||
1683 | /* | |
1684 | * The config may be present even if 'error' is non-zero. | |
1685 | * In this case we return success, and preserve the real errno | |
1686 | * in 'zc_cookie'. | |
1687 | */ | |
1688 | zc->zc_cookie = error; | |
1689 | } else { | |
1690 | ret = error; | |
1691 | } | |
1692 | ||
1693 | return (ret); | |
1694 | } | |
1695 | ||
1696 | /* | |
1697 | * Try to import the given pool, returning pool stats as appropriate so that | |
1698 | * user land knows which devices are available and overall pool health. | |
1699 | */ | |
1700 | static int | |
1701 | zfs_ioc_pool_tryimport(zfs_cmd_t *zc) | |
1702 | { | |
379ca9cf | 1703 | nvlist_t *tryconfig, *config = NULL; |
34dc7c2f BB |
1704 | int error; |
1705 | ||
1706 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1707 | zc->zc_iflags, &tryconfig)) != 0) |
34dc7c2f BB |
1708 | return (error); |
1709 | ||
1710 | config = spa_tryimport(tryconfig); | |
1711 | ||
1712 | nvlist_free(tryconfig); | |
1713 | ||
1714 | if (config == NULL) | |
2e528b49 | 1715 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1716 | |
1717 | error = put_nvlist(zc, config); | |
1718 | nvlist_free(config); | |
1719 | ||
1720 | return (error); | |
1721 | } | |
1722 | ||
428870ff BB |
1723 | /* |
1724 | * inputs: | |
1725 | * zc_name name of the pool | |
1726 | * zc_cookie scan func (pool_scan_func_t) | |
0ea05c64 | 1727 | * zc_flags scrub pause/resume flag (pool_scrub_cmd_t) |
428870ff | 1728 | */ |
34dc7c2f | 1729 | static int |
428870ff | 1730 | zfs_ioc_pool_scan(zfs_cmd_t *zc) |
34dc7c2f BB |
1731 | { |
1732 | spa_t *spa; | |
1733 | int error; | |
1734 | ||
0ea05c64 AP |
1735 | if (zc->zc_flags >= POOL_SCRUB_FLAGS_END) |
1736 | return (SET_ERROR(EINVAL)); | |
1737 | ||
1724eb62 | 1738 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) |
1739 | return (error); | |
1740 | ||
0ea05c64 AP |
1741 | if (zc->zc_flags == POOL_SCRUB_PAUSE) |
1742 | error = spa_scrub_pause_resume(spa, POOL_SCRUB_PAUSE); | |
1743 | else if (zc->zc_cookie == POOL_SCAN_NONE) | |
428870ff BB |
1744 | error = spa_scan_stop(spa); |
1745 | else | |
1746 | error = spa_scan(spa, zc->zc_cookie); | |
34dc7c2f BB |
1747 | |
1748 | spa_close(spa, FTAG); | |
1749 | ||
1750 | return (error); | |
1751 | } | |
1752 | ||
1753 | static int | |
1754 | zfs_ioc_pool_freeze(zfs_cmd_t *zc) | |
1755 | { | |
1756 | spa_t *spa; | |
1757 | int error; | |
1758 | ||
1759 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1760 | if (error == 0) { | |
1761 | spa_freeze(spa); | |
1762 | spa_close(spa, FTAG); | |
1763 | } | |
1764 | return (error); | |
1765 | } | |
1766 | ||
1767 | static int | |
1768 | zfs_ioc_pool_upgrade(zfs_cmd_t *zc) | |
1769 | { | |
1770 | spa_t *spa; | |
1771 | int error; | |
1772 | ||
1773 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1774 | return (error); | |
1775 | ||
9ae529ec CS |
1776 | if (zc->zc_cookie < spa_version(spa) || |
1777 | !SPA_VERSION_IS_SUPPORTED(zc->zc_cookie)) { | |
34dc7c2f | 1778 | spa_close(spa, FTAG); |
2e528b49 | 1779 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1780 | } |
1781 | ||
1782 | spa_upgrade(spa, zc->zc_cookie); | |
1783 | spa_close(spa, FTAG); | |
1784 | ||
1785 | return (error); | |
1786 | } | |
1787 | ||
1788 | static int | |
1789 | zfs_ioc_pool_get_history(zfs_cmd_t *zc) | |
1790 | { | |
1791 | spa_t *spa; | |
1792 | char *hist_buf; | |
1793 | uint64_t size; | |
1794 | int error; | |
1795 | ||
1796 | if ((size = zc->zc_history_len) == 0) | |
2e528b49 | 1797 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1798 | |
1799 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1800 | return (error); | |
1801 | ||
1802 | if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { | |
1803 | spa_close(spa, FTAG); | |
2e528b49 | 1804 | return (SET_ERROR(ENOTSUP)); |
34dc7c2f BB |
1805 | } |
1806 | ||
34b84cb8 | 1807 | hist_buf = vmem_alloc(size, KM_SLEEP); |
34dc7c2f BB |
1808 | if ((error = spa_history_get(spa, &zc->zc_history_offset, |
1809 | &zc->zc_history_len, hist_buf)) == 0) { | |
9babb374 BB |
1810 | error = ddi_copyout(hist_buf, |
1811 | (void *)(uintptr_t)zc->zc_history, | |
1812 | zc->zc_history_len, zc->zc_iflags); | |
34dc7c2f BB |
1813 | } |
1814 | ||
1815 | spa_close(spa, FTAG); | |
34b84cb8 | 1816 | vmem_free(hist_buf, size); |
34dc7c2f BB |
1817 | return (error); |
1818 | } | |
1819 | ||
3541dc6d GA |
1820 | static int |
1821 | zfs_ioc_pool_reguid(zfs_cmd_t *zc) | |
1822 | { | |
1823 | spa_t *spa; | |
1824 | int error; | |
1825 | ||
1826 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1827 | if (error == 0) { | |
1828 | error = spa_change_guid(spa); | |
1829 | spa_close(spa, FTAG); | |
1830 | } | |
1831 | return (error); | |
1832 | } | |
1833 | ||
34dc7c2f BB |
1834 | static int |
1835 | zfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc) | |
1836 | { | |
13fe0198 | 1837 | return (dsl_dsobj_to_dsname(zc->zc_name, zc->zc_obj, zc->zc_value)); |
34dc7c2f BB |
1838 | } |
1839 | ||
428870ff BB |
1840 | /* |
1841 | * inputs: | |
1842 | * zc_name name of filesystem | |
1843 | * zc_obj object to find | |
1844 | * | |
1845 | * outputs: | |
1846 | * zc_value name of object | |
1847 | */ | |
34dc7c2f BB |
1848 | static int |
1849 | zfs_ioc_obj_to_path(zfs_cmd_t *zc) | |
1850 | { | |
428870ff | 1851 | objset_t *os; |
34dc7c2f BB |
1852 | int error; |
1853 | ||
428870ff | 1854 | /* XXX reading from objset not owned */ |
b5256303 TC |
1855 | if ((error = dmu_objset_hold_flags(zc->zc_name, B_TRUE, |
1856 | FTAG, &os)) != 0) | |
34dc7c2f | 1857 | return (error); |
428870ff | 1858 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
b5256303 | 1859 | dmu_objset_rele_flags(os, B_TRUE, FTAG); |
2e528b49 | 1860 | return (SET_ERROR(EINVAL)); |
428870ff BB |
1861 | } |
1862 | error = zfs_obj_to_path(os, zc->zc_obj, zc->zc_value, | |
34dc7c2f | 1863 | sizeof (zc->zc_value)); |
b5256303 | 1864 | dmu_objset_rele_flags(os, B_TRUE, FTAG); |
34dc7c2f BB |
1865 | |
1866 | return (error); | |
1867 | } | |
1868 | ||
572e2857 BB |
1869 | /* |
1870 | * inputs: | |
1871 | * zc_name name of filesystem | |
1872 | * zc_obj object to find | |
1873 | * | |
1874 | * outputs: | |
1875 | * zc_stat stats on object | |
1876 | * zc_value path to object | |
1877 | */ | |
1878 | static int | |
1879 | zfs_ioc_obj_to_stats(zfs_cmd_t *zc) | |
1880 | { | |
1881 | objset_t *os; | |
1882 | int error; | |
1883 | ||
1884 | /* XXX reading from objset not owned */ | |
b5256303 TC |
1885 | if ((error = dmu_objset_hold_flags(zc->zc_name, B_TRUE, |
1886 | FTAG, &os)) != 0) | |
572e2857 BB |
1887 | return (error); |
1888 | if (dmu_objset_type(os) != DMU_OST_ZFS) { | |
b5256303 | 1889 | dmu_objset_rele_flags(os, B_TRUE, FTAG); |
2e528b49 | 1890 | return (SET_ERROR(EINVAL)); |
572e2857 BB |
1891 | } |
1892 | error = zfs_obj_to_stats(os, zc->zc_obj, &zc->zc_stat, zc->zc_value, | |
1893 | sizeof (zc->zc_value)); | |
b5256303 | 1894 | dmu_objset_rele_flags(os, B_TRUE, FTAG); |
572e2857 BB |
1895 | |
1896 | return (error); | |
1897 | } | |
1898 | ||
34dc7c2f BB |
1899 | static int |
1900 | zfs_ioc_vdev_add(zfs_cmd_t *zc) | |
1901 | { | |
1902 | spa_t *spa; | |
1903 | int error; | |
64ad2b26 | 1904 | nvlist_t *config; |
34dc7c2f BB |
1905 | |
1906 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1907 | if (error != 0) | |
1908 | return (error); | |
1909 | ||
1910 | error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1911 | zc->zc_iflags, &config); |
34dc7c2f BB |
1912 | if (error == 0) { |
1913 | error = spa_vdev_add(spa, config); | |
1914 | nvlist_free(config); | |
1915 | } | |
1916 | spa_close(spa, FTAG); | |
1917 | return (error); | |
1918 | } | |
1919 | ||
428870ff BB |
1920 | /* |
1921 | * inputs: | |
1922 | * zc_name name of the pool | |
1923 | * zc_nvlist_conf nvlist of devices to remove | |
1924 | * zc_cookie to stop the remove? | |
1925 | */ | |
34dc7c2f BB |
1926 | static int |
1927 | zfs_ioc_vdev_remove(zfs_cmd_t *zc) | |
1928 | { | |
1929 | spa_t *spa; | |
1930 | int error; | |
1931 | ||
1932 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1933 | if (error != 0) | |
1934 | return (error); | |
1935 | error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE); | |
1936 | spa_close(spa, FTAG); | |
1937 | return (error); | |
1938 | } | |
1939 | ||
1940 | static int | |
1941 | zfs_ioc_vdev_set_state(zfs_cmd_t *zc) | |
1942 | { | |
1943 | spa_t *spa; | |
1944 | int error; | |
1945 | vdev_state_t newstate = VDEV_STATE_UNKNOWN; | |
1946 | ||
1947 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1948 | return (error); | |
1949 | switch (zc->zc_cookie) { | |
1950 | case VDEV_STATE_ONLINE: | |
1951 | error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate); | |
1952 | break; | |
1953 | ||
1954 | case VDEV_STATE_OFFLINE: | |
1955 | error = vdev_offline(spa, zc->zc_guid, zc->zc_obj); | |
1956 | break; | |
1957 | ||
1958 | case VDEV_STATE_FAULTED: | |
428870ff | 1959 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
4a283c7f TH |
1960 | zc->zc_obj != VDEV_AUX_EXTERNAL && |
1961 | zc->zc_obj != VDEV_AUX_EXTERNAL_PERSIST) | |
428870ff BB |
1962 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; |
1963 | ||
1964 | error = vdev_fault(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1965 | break; |
1966 | ||
1967 | case VDEV_STATE_DEGRADED: | |
428870ff BB |
1968 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
1969 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
1970 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
1971 | ||
1972 | error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1973 | break; |
1974 | ||
1975 | default: | |
2e528b49 | 1976 | error = SET_ERROR(EINVAL); |
34dc7c2f BB |
1977 | } |
1978 | zc->zc_cookie = newstate; | |
1979 | spa_close(spa, FTAG); | |
1980 | return (error); | |
1981 | } | |
1982 | ||
1983 | static int | |
1984 | zfs_ioc_vdev_attach(zfs_cmd_t *zc) | |
1985 | { | |
1986 | spa_t *spa; | |
1987 | int replacing = zc->zc_cookie; | |
1988 | nvlist_t *config; | |
1989 | int error; | |
1990 | ||
1991 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1992 | return (error); | |
1993 | ||
1994 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1995 | zc->zc_iflags, &config)) == 0) { |
34dc7c2f BB |
1996 | error = spa_vdev_attach(spa, zc->zc_guid, config, replacing); |
1997 | nvlist_free(config); | |
1998 | } | |
1999 | ||
2000 | spa_close(spa, FTAG); | |
2001 | return (error); | |
2002 | } | |
2003 | ||
2004 | static int | |
2005 | zfs_ioc_vdev_detach(zfs_cmd_t *zc) | |
2006 | { | |
2007 | spa_t *spa; | |
2008 | int error; | |
2009 | ||
2010 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
2011 | return (error); | |
2012 | ||
fb5f0bc8 | 2013 | error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE); |
34dc7c2f BB |
2014 | |
2015 | spa_close(spa, FTAG); | |
2016 | return (error); | |
2017 | } | |
2018 | ||
428870ff BB |
2019 | static int |
2020 | zfs_ioc_vdev_split(zfs_cmd_t *zc) | |
2021 | { | |
2022 | spa_t *spa; | |
2023 | nvlist_t *config, *props = NULL; | |
2024 | int error; | |
2025 | boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT); | |
2026 | ||
2027 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
2028 | return (error); | |
2029 | ||
c65aa5b2 BB |
2030 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, |
2031 | zc->zc_iflags, &config))) { | |
428870ff BB |
2032 | spa_close(spa, FTAG); |
2033 | return (error); | |
2034 | } | |
2035 | ||
2036 | if (zc->zc_nvlist_src_size != 0 && (error = | |
2037 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
2038 | zc->zc_iflags, &props))) { | |
2039 | spa_close(spa, FTAG); | |
2040 | nvlist_free(config); | |
2041 | return (error); | |
2042 | } | |
2043 | ||
2044 | error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp); | |
2045 | ||
2046 | spa_close(spa, FTAG); | |
2047 | ||
2048 | nvlist_free(config); | |
2049 | nvlist_free(props); | |
2050 | ||
2051 | return (error); | |
2052 | } | |
2053 | ||
34dc7c2f BB |
2054 | static int |
2055 | zfs_ioc_vdev_setpath(zfs_cmd_t *zc) | |
2056 | { | |
2057 | spa_t *spa; | |
2058 | char *path = zc->zc_value; | |
2059 | uint64_t guid = zc->zc_guid; | |
2060 | int error; | |
2061 | ||
2062 | error = spa_open(zc->zc_name, &spa, FTAG); | |
2063 | if (error != 0) | |
2064 | return (error); | |
2065 | ||
2066 | error = spa_vdev_setpath(spa, guid, path); | |
2067 | spa_close(spa, FTAG); | |
2068 | return (error); | |
2069 | } | |
2070 | ||
9babb374 BB |
2071 | static int |
2072 | zfs_ioc_vdev_setfru(zfs_cmd_t *zc) | |
2073 | { | |
2074 | spa_t *spa; | |
2075 | char *fru = zc->zc_value; | |
2076 | uint64_t guid = zc->zc_guid; | |
2077 | int error; | |
2078 | ||
2079 | error = spa_open(zc->zc_name, &spa, FTAG); | |
2080 | if (error != 0) | |
2081 | return (error); | |
2082 | ||
2083 | error = spa_vdev_setfru(spa, guid, fru); | |
2084 | spa_close(spa, FTAG); | |
2085 | return (error); | |
2086 | } | |
2087 | ||
34dc7c2f | 2088 | static int |
572e2857 | 2089 | zfs_ioc_objset_stats_impl(zfs_cmd_t *zc, objset_t *os) |
34dc7c2f | 2090 | { |
572e2857 | 2091 | int error = 0; |
34dc7c2f BB |
2092 | nvlist_t *nv; |
2093 | ||
34dc7c2f BB |
2094 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); |
2095 | ||
2096 | if (zc->zc_nvlist_dst != 0 && | |
428870ff | 2097 | (error = dsl_prop_get_all(os, &nv)) == 0) { |
34dc7c2f BB |
2098 | dmu_objset_stats(os, nv); |
2099 | /* | |
2100 | * NB: zvol_get_stats() will read the objset contents, | |
2101 | * which we aren't supposed to do with a | |
b128c09f | 2102 | * DS_MODE_USER hold, because it could be |
34dc7c2f | 2103 | * inconsistent. So this is a bit of a workaround... |
428870ff | 2104 | * XXX reading with out owning |
34dc7c2f | 2105 | */ |
330d06f9 MA |
2106 | if (!zc->zc_objset_stats.dds_inconsistent && |
2107 | dmu_objset_type(os) == DMU_OST_ZVOL) { | |
2108 | error = zvol_get_stats(os, nv); | |
6d421005 B |
2109 | if (error == EIO) { |
2110 | nvlist_free(nv); | |
330d06f9 | 2111 | return (error); |
6d421005 | 2112 | } |
c99c9001 | 2113 | VERIFY0(error); |
34dc7c2f | 2114 | } |
8a8f5c6b BB |
2115 | if (error == 0) |
2116 | error = put_nvlist(zc, nv); | |
34dc7c2f BB |
2117 | nvlist_free(nv); |
2118 | } | |
2119 | ||
572e2857 BB |
2120 | return (error); |
2121 | } | |
2122 | ||
2123 | /* | |
2124 | * inputs: | |
2125 | * zc_name name of filesystem | |
2126 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2127 | * | |
2128 | * outputs: | |
2129 | * zc_objset_stats stats | |
2130 | * zc_nvlist_dst property nvlist | |
2131 | * zc_nvlist_dst_size size of property nvlist | |
2132 | */ | |
2133 | static int | |
2134 | zfs_ioc_objset_stats(zfs_cmd_t *zc) | |
2135 | { | |
13fe0198 | 2136 | objset_t *os; |
572e2857 BB |
2137 | int error; |
2138 | ||
13fe0198 MA |
2139 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); |
2140 | if (error == 0) { | |
2141 | error = zfs_ioc_objset_stats_impl(zc, os); | |
2142 | dmu_objset_rele(os, FTAG); | |
2143 | } | |
572e2857 | 2144 | |
428870ff BB |
2145 | return (error); |
2146 | } | |
2147 | ||
2148 | /* | |
2149 | * inputs: | |
2150 | * zc_name name of filesystem | |
2151 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2152 | * | |
2153 | * outputs: | |
2154 | * zc_nvlist_dst received property nvlist | |
2155 | * zc_nvlist_dst_size size of received property nvlist | |
2156 | * | |
2157 | * Gets received properties (distinct from local properties on or after | |
2158 | * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from | |
2159 | * local property values. | |
2160 | */ | |
2161 | static int | |
26685276 | 2162 | zfs_ioc_objset_recvd_props(zfs_cmd_t *zc) |
428870ff | 2163 | { |
13fe0198 | 2164 | int error = 0; |
428870ff BB |
2165 | nvlist_t *nv; |
2166 | ||
428870ff BB |
2167 | /* |
2168 | * Without this check, we would return local property values if the | |
2169 | * caller has not already received properties on or after | |
2170 | * SPA_VERSION_RECVD_PROPS. | |
2171 | */ | |
13fe0198 | 2172 | if (!dsl_prop_get_hasrecvd(zc->zc_name)) |
2e528b49 | 2173 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
2174 | |
2175 | if (zc->zc_nvlist_dst != 0 && | |
13fe0198 | 2176 | (error = dsl_prop_get_received(zc->zc_name, &nv)) == 0) { |
428870ff BB |
2177 | error = put_nvlist(zc, nv); |
2178 | nvlist_free(nv); | |
2179 | } | |
2180 | ||
34dc7c2f BB |
2181 | return (error); |
2182 | } | |
2183 | ||
2184 | static int | |
2185 | nvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop) | |
2186 | { | |
2187 | uint64_t value; | |
2188 | int error; | |
2189 | ||
2190 | /* | |
2191 | * zfs_get_zplprop() will either find a value or give us | |
2192 | * the default value (if there is one). | |
2193 | */ | |
2194 | if ((error = zfs_get_zplprop(os, prop, &value)) != 0) | |
2195 | return (error); | |
2196 | VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0); | |
2197 | return (0); | |
2198 | } | |
2199 | ||
2200 | /* | |
2201 | * inputs: | |
2202 | * zc_name name of filesystem | |
2203 | * zc_nvlist_dst_size size of buffer for zpl property nvlist | |
2204 | * | |
2205 | * outputs: | |
2206 | * zc_nvlist_dst zpl property nvlist | |
2207 | * zc_nvlist_dst_size size of zpl property nvlist | |
2208 | */ | |
2209 | static int | |
2210 | zfs_ioc_objset_zplprops(zfs_cmd_t *zc) | |
2211 | { | |
2212 | objset_t *os; | |
2213 | int err; | |
2214 | ||
428870ff | 2215 | /* XXX reading without owning */ |
c65aa5b2 | 2216 | if ((err = dmu_objset_hold(zc->zc_name, FTAG, &os))) |
34dc7c2f BB |
2217 | return (err); |
2218 | ||
2219 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); | |
2220 | ||
2221 | /* | |
2222 | * NB: nvl_add_zplprop() will read the objset contents, | |
b128c09f BB |
2223 | * which we aren't supposed to do with a DS_MODE_USER |
2224 | * hold, because it could be inconsistent. | |
34dc7c2f | 2225 | */ |
b8864a23 | 2226 | if (zc->zc_nvlist_dst != 0 && |
34dc7c2f BB |
2227 | !zc->zc_objset_stats.dds_inconsistent && |
2228 | dmu_objset_type(os) == DMU_OST_ZFS) { | |
2229 | nvlist_t *nv; | |
2230 | ||
2231 | VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2232 | if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 && | |
2233 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 && | |
2234 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 && | |
2235 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0) | |
2236 | err = put_nvlist(zc, nv); | |
2237 | nvlist_free(nv); | |
2238 | } else { | |
2e528b49 | 2239 | err = SET_ERROR(ENOENT); |
34dc7c2f | 2240 | } |
428870ff | 2241 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
2242 | return (err); |
2243 | } | |
2244 | ||
ba6a2402 | 2245 | boolean_t |
9babb374 BB |
2246 | dataset_name_hidden(const char *name) |
2247 | { | |
2248 | /* | |
2249 | * Skip over datasets that are not visible in this zone, | |
2250 | * internal datasets (which have a $ in their name), and | |
2251 | * temporary datasets (which have a % in their name). | |
2252 | */ | |
2253 | if (strchr(name, '$') != NULL) | |
2254 | return (B_TRUE); | |
2255 | if (strchr(name, '%') != NULL) | |
2256 | return (B_TRUE); | |
2257 | if (!INGLOBALZONE(curproc) && !zone_dataset_visible(name, NULL)) | |
2258 | return (B_TRUE); | |
2259 | return (B_FALSE); | |
2260 | } | |
2261 | ||
34dc7c2f BB |
2262 | /* |
2263 | * inputs: | |
2264 | * zc_name name of filesystem | |
2265 | * zc_cookie zap cursor | |
2266 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2267 | * | |
2268 | * outputs: | |
2269 | * zc_name name of next filesystem | |
9babb374 | 2270 | * zc_cookie zap cursor |
34dc7c2f BB |
2271 | * zc_objset_stats stats |
2272 | * zc_nvlist_dst property nvlist | |
2273 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
2274 | */ |
2275 | static int | |
2276 | zfs_ioc_dataset_list_next(zfs_cmd_t *zc) | |
2277 | { | |
2278 | objset_t *os; | |
2279 | int error; | |
2280 | char *p; | |
428870ff | 2281 | size_t orig_len = strlen(zc->zc_name); |
34dc7c2f | 2282 | |
428870ff | 2283 | top: |
c65aa5b2 | 2284 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os))) { |
34dc7c2f | 2285 | if (error == ENOENT) |
2e528b49 | 2286 | error = SET_ERROR(ESRCH); |
34dc7c2f BB |
2287 | return (error); |
2288 | } | |
2289 | ||
2290 | p = strrchr(zc->zc_name, '/'); | |
2291 | if (p == NULL || p[1] != '\0') | |
2292 | (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name)); | |
2293 | p = zc->zc_name + strlen(zc->zc_name); | |
2294 | ||
2295 | do { | |
2296 | error = dmu_dir_list_next(os, | |
2297 | sizeof (zc->zc_name) - (p - zc->zc_name), p, | |
2298 | NULL, &zc->zc_cookie); | |
2299 | if (error == ENOENT) | |
2e528b49 | 2300 | error = SET_ERROR(ESRCH); |
330d06f9 | 2301 | } while (error == 0 && dataset_name_hidden(zc->zc_name)); |
428870ff | 2302 | dmu_objset_rele(os, FTAG); |
34dc7c2f | 2303 | |
428870ff BB |
2304 | /* |
2305 | * If it's an internal dataset (ie. with a '$' in its name), | |
2306 | * don't try to get stats for it, otherwise we'll return ENOENT. | |
2307 | */ | |
2308 | if (error == 0 && strchr(zc->zc_name, '$') == NULL) { | |
34dc7c2f | 2309 | error = zfs_ioc_objset_stats(zc); /* fill in the stats */ |
428870ff BB |
2310 | if (error == ENOENT) { |
2311 | /* We lost a race with destroy, get the next one. */ | |
2312 | zc->zc_name[orig_len] = '\0'; | |
2313 | goto top; | |
2314 | } | |
2315 | } | |
34dc7c2f BB |
2316 | return (error); |
2317 | } | |
2318 | ||
2319 | /* | |
2320 | * inputs: | |
2321 | * zc_name name of filesystem | |
2322 | * zc_cookie zap cursor | |
2323 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2324 | * | |
2325 | * outputs: | |
2326 | * zc_name name of next snapshot | |
2327 | * zc_objset_stats stats | |
2328 | * zc_nvlist_dst property nvlist | |
2329 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
2330 | */ |
2331 | static int | |
2332 | zfs_ioc_snapshot_list_next(zfs_cmd_t *zc) | |
2333 | { | |
2334 | objset_t *os; | |
2335 | int error; | |
2336 | ||
428870ff | 2337 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); |
13fe0198 | 2338 | if (error != 0) { |
b128c09f | 2339 | return (error == ENOENT ? ESRCH : error); |
13fe0198 | 2340 | } |
34dc7c2f BB |
2341 | |
2342 | /* | |
2343 | * A dataset name of maximum length cannot have any snapshots, | |
2344 | * so exit immediately. | |
2345 | */ | |
eca7b760 IK |
2346 | if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= |
2347 | ZFS_MAX_DATASET_NAME_LEN) { | |
428870ff | 2348 | dmu_objset_rele(os, FTAG); |
2e528b49 | 2349 | return (SET_ERROR(ESRCH)); |
34dc7c2f BB |
2350 | } |
2351 | ||
2352 | error = dmu_snapshot_list_next(os, | |
2353 | sizeof (zc->zc_name) - strlen(zc->zc_name), | |
572e2857 BB |
2354 | zc->zc_name + strlen(zc->zc_name), &zc->zc_obj, &zc->zc_cookie, |
2355 | NULL); | |
2356 | ||
0cee2406 | 2357 | if (error == 0 && !zc->zc_simple) { |
572e2857 BB |
2358 | dsl_dataset_t *ds; |
2359 | dsl_pool_t *dp = os->os_dsl_dataset->ds_dir->dd_pool; | |
2360 | ||
572e2857 | 2361 | error = dsl_dataset_hold_obj(dp, zc->zc_obj, FTAG, &ds); |
13fe0198 | 2362 | if (error == 0) { |
572e2857 BB |
2363 | objset_t *ossnap; |
2364 | ||
2365 | error = dmu_objset_from_ds(ds, &ossnap); | |
2366 | if (error == 0) | |
2367 | error = zfs_ioc_objset_stats_impl(zc, ossnap); | |
2368 | dsl_dataset_rele(ds, FTAG); | |
428870ff BB |
2369 | } |
2370 | } else if (error == ENOENT) { | |
2e528b49 | 2371 | error = SET_ERROR(ESRCH); |
428870ff | 2372 | } |
34dc7c2f | 2373 | |
572e2857 | 2374 | dmu_objset_rele(os, FTAG); |
34dc7c2f | 2375 | /* if we failed, undo the @ that we tacked on to zc_name */ |
13fe0198 | 2376 | if (error != 0) |
34dc7c2f | 2377 | *strchr(zc->zc_name, '@') = '\0'; |
34dc7c2f BB |
2378 | return (error); |
2379 | } | |
2380 | ||
428870ff BB |
2381 | static int |
2382 | zfs_prop_set_userquota(const char *dsname, nvpair_t *pair) | |
34dc7c2f | 2383 | { |
428870ff BB |
2384 | const char *propname = nvpair_name(pair); |
2385 | uint64_t *valary; | |
2386 | unsigned int vallen; | |
2387 | const char *domain; | |
2388 | char *dash; | |
2389 | zfs_userquota_prop_t type; | |
2390 | uint64_t rid; | |
2391 | uint64_t quota; | |
0037b49e | 2392 | zfsvfs_t *zfsvfs; |
428870ff BB |
2393 | int err; |
2394 | ||
2395 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2396 | nvlist_t *attrs; | |
2397 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2398 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2399 | &pair) != 0) | |
2e528b49 | 2400 | return (SET_ERROR(EINVAL)); |
428870ff | 2401 | } |
34dc7c2f BB |
2402 | |
2403 | /* | |
428870ff BB |
2404 | * A correctly constructed propname is encoded as |
2405 | * userquota@<rid>-<domain>. | |
34dc7c2f | 2406 | */ |
428870ff BB |
2407 | if ((dash = strchr(propname, '-')) == NULL || |
2408 | nvpair_value_uint64_array(pair, &valary, &vallen) != 0 || | |
2409 | vallen != 3) | |
2e528b49 | 2410 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 2411 | |
428870ff BB |
2412 | domain = dash + 1; |
2413 | type = valary[0]; | |
2414 | rid = valary[1]; | |
2415 | quota = valary[2]; | |
34dc7c2f | 2416 | |
f298b24d | 2417 | err = zfsvfs_hold(dsname, FTAG, &zfsvfs, B_FALSE); |
428870ff | 2418 | if (err == 0) { |
0037b49e | 2419 | err = zfs_set_userquota(zfsvfs, type, domain, rid, quota); |
f298b24d | 2420 | zfsvfs_rele(zfsvfs, FTAG); |
428870ff | 2421 | } |
9babb374 | 2422 | |
428870ff BB |
2423 | return (err); |
2424 | } | |
34dc7c2f | 2425 | |
428870ff BB |
2426 | /* |
2427 | * If the named property is one that has a special function to set its value, | |
2428 | * return 0 on success and a positive error code on failure; otherwise if it is | |
2429 | * not one of the special properties handled by this function, return -1. | |
2430 | * | |
2431 | * XXX: It would be better for callers of the property interface if we handled | |
2432 | * these special cases in dsl_prop.c (in the dsl layer). | |
2433 | */ | |
2434 | static int | |
2435 | zfs_prop_set_special(const char *dsname, zprop_source_t source, | |
2436 | nvpair_t *pair) | |
2437 | { | |
2438 | const char *propname = nvpair_name(pair); | |
2439 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
b5256303 TC |
2440 | uint64_t intval = 0; |
2441 | char *strval = NULL; | |
f1512ee6 | 2442 | int err = -1; |
9babb374 | 2443 | |
428870ff BB |
2444 | if (prop == ZPROP_INVAL) { |
2445 | if (zfs_prop_userquota(propname)) | |
2446 | return (zfs_prop_set_userquota(dsname, pair)); | |
2447 | return (-1); | |
2448 | } | |
34dc7c2f | 2449 | |
428870ff BB |
2450 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { |
2451 | nvlist_t *attrs; | |
2452 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2453 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2454 | &pair) == 0); | |
2455 | } | |
b128c09f | 2456 | |
b5256303 TC |
2457 | /* all special properties are numeric except for keylocation */ |
2458 | if (zfs_prop_get_type(prop) == PROP_TYPE_STRING) { | |
2459 | strval = fnvpair_value_string(pair); | |
2460 | } else { | |
2461 | intval = fnvpair_value_uint64(pair); | |
2462 | } | |
34dc7c2f | 2463 | |
428870ff BB |
2464 | switch (prop) { |
2465 | case ZFS_PROP_QUOTA: | |
2466 | err = dsl_dir_set_quota(dsname, source, intval); | |
2467 | break; | |
2468 | case ZFS_PROP_REFQUOTA: | |
13fe0198 | 2469 | err = dsl_dataset_set_refquota(dsname, source, intval); |
428870ff | 2470 | break; |
788eb90c JJ |
2471 | case ZFS_PROP_FILESYSTEM_LIMIT: |
2472 | case ZFS_PROP_SNAPSHOT_LIMIT: | |
2473 | if (intval == UINT64_MAX) { | |
2474 | /* clearing the limit, just do it */ | |
2475 | err = 0; | |
2476 | } else { | |
2477 | err = dsl_dir_activate_fs_ss_limit(dsname); | |
2478 | } | |
b5256303 TC |
2479 | /* |
2480 | * Set err to -1 to force the zfs_set_prop_nvlist code down the | |
2481 | * default path to set the value in the nvlist. | |
2482 | */ | |
2483 | if (err == 0) | |
2484 | err = -1; | |
2485 | break; | |
2486 | case ZFS_PROP_KEYLOCATION: | |
2487 | err = dsl_crypto_can_set_keylocation(dsname, strval); | |
2488 | ||
788eb90c JJ |
2489 | /* |
2490 | * Set err to -1 to force the zfs_set_prop_nvlist code down the | |
2491 | * default path to set the value in the nvlist. | |
2492 | */ | |
2493 | if (err == 0) | |
2494 | err = -1; | |
2495 | break; | |
428870ff BB |
2496 | case ZFS_PROP_RESERVATION: |
2497 | err = dsl_dir_set_reservation(dsname, source, intval); | |
2498 | break; | |
2499 | case ZFS_PROP_REFRESERVATION: | |
13fe0198 | 2500 | err = dsl_dataset_set_refreservation(dsname, source, intval); |
428870ff BB |
2501 | break; |
2502 | case ZFS_PROP_VOLSIZE: | |
60101509 | 2503 | err = zvol_set_volsize(dsname, intval); |
428870ff | 2504 | break; |
0b4d1b58 | 2505 | case ZFS_PROP_SNAPDEV: |
a0bd735a | 2506 | err = zvol_set_snapdev(dsname, source, intval); |
0b4d1b58 | 2507 | break; |
cf8738d8 | 2508 | case ZFS_PROP_VOLMODE: |
2509 | err = zvol_set_volmode(dsname, source, intval); | |
2510 | break; | |
428870ff BB |
2511 | case ZFS_PROP_VERSION: |
2512 | { | |
0037b49e | 2513 | zfsvfs_t *zfsvfs; |
428870ff | 2514 | |
f298b24d | 2515 | if ((err = zfsvfs_hold(dsname, FTAG, &zfsvfs, B_TRUE)) != 0) |
34dc7c2f | 2516 | break; |
b128c09f | 2517 | |
0037b49e | 2518 | err = zfs_set_version(zfsvfs, intval); |
f298b24d | 2519 | zfsvfs_rele(zfsvfs, FTAG); |
34dc7c2f | 2520 | |
428870ff BB |
2521 | if (err == 0 && intval >= ZPL_VERSION_USERSPACE) { |
2522 | zfs_cmd_t *zc; | |
34dc7c2f | 2523 | |
efcd79a8 | 2524 | zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); |
428870ff BB |
2525 | (void) strcpy(zc->zc_name, dsname); |
2526 | (void) zfs_ioc_userspace_upgrade(zc); | |
9c5167d1 | 2527 | (void) zfs_ioc_id_quota_upgrade(zc); |
428870ff | 2528 | kmem_free(zc, sizeof (zfs_cmd_t)); |
34dc7c2f | 2529 | } |
428870ff BB |
2530 | break; |
2531 | } | |
428870ff BB |
2532 | default: |
2533 | err = -1; | |
2534 | } | |
34dc7c2f | 2535 | |
428870ff BB |
2536 | return (err); |
2537 | } | |
34dc7c2f | 2538 | |
428870ff BB |
2539 | /* |
2540 | * This function is best effort. If it fails to set any of the given properties, | |
6f1ffb06 MA |
2541 | * it continues to set as many as it can and returns the last error |
2542 | * encountered. If the caller provides a non-NULL errlist, it will be filled in | |
2543 | * with the list of names of all the properties that failed along with the | |
2544 | * corresponding error numbers. | |
428870ff | 2545 | * |
6f1ffb06 MA |
2546 | * If every property is set successfully, zero is returned and errlist is not |
2547 | * modified. | |
428870ff BB |
2548 | */ |
2549 | int | |
2550 | zfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl, | |
6f1ffb06 | 2551 | nvlist_t *errlist) |
428870ff BB |
2552 | { |
2553 | nvpair_t *pair; | |
2554 | nvpair_t *propval; | |
2555 | int rv = 0; | |
2556 | uint64_t intval; | |
2557 | char *strval; | |
34dc7c2f | 2558 | |
6f1ffb06 MA |
2559 | nvlist_t *genericnvl = fnvlist_alloc(); |
2560 | nvlist_t *retrynvl = fnvlist_alloc(); | |
428870ff BB |
2561 | retry: |
2562 | pair = NULL; | |
2563 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { | |
2564 | const char *propname = nvpair_name(pair); | |
2565 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2566 | int err = 0; | |
2567 | ||
2568 | /* decode the property value */ | |
2569 | propval = pair; | |
2570 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2571 | nvlist_t *attrs; | |
6f1ffb06 | 2572 | attrs = fnvpair_value_nvlist(pair); |
428870ff BB |
2573 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, |
2574 | &propval) != 0) | |
2e528b49 | 2575 | err = SET_ERROR(EINVAL); |
9babb374 | 2576 | } |
34dc7c2f | 2577 | |
428870ff | 2578 | /* Validate value type */ |
a3eeab2d | 2579 | if (err == 0 && source == ZPROP_SRC_INHERITED) { |
2580 | /* inherited properties are expected to be booleans */ | |
2581 | if (nvpair_type(propval) != DATA_TYPE_BOOLEAN) | |
2582 | err = SET_ERROR(EINVAL); | |
2583 | } else if (err == 0 && prop == ZPROP_INVAL) { | |
428870ff BB |
2584 | if (zfs_prop_user(propname)) { |
2585 | if (nvpair_type(propval) != DATA_TYPE_STRING) | |
2e528b49 | 2586 | err = SET_ERROR(EINVAL); |
428870ff BB |
2587 | } else if (zfs_prop_userquota(propname)) { |
2588 | if (nvpair_type(propval) != | |
2589 | DATA_TYPE_UINT64_ARRAY) | |
2e528b49 | 2590 | err = SET_ERROR(EINVAL); |
330d06f9 | 2591 | } else { |
2e528b49 | 2592 | err = SET_ERROR(EINVAL); |
428870ff BB |
2593 | } |
2594 | } else if (err == 0) { | |
2595 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
2596 | if (zfs_prop_get_type(prop) != PROP_TYPE_STRING) | |
2e528b49 | 2597 | err = SET_ERROR(EINVAL); |
428870ff | 2598 | } else if (nvpair_type(propval) == DATA_TYPE_UINT64) { |
34dc7c2f BB |
2599 | const char *unused; |
2600 | ||
6f1ffb06 | 2601 | intval = fnvpair_value_uint64(propval); |
34dc7c2f BB |
2602 | |
2603 | switch (zfs_prop_get_type(prop)) { | |
2604 | case PROP_TYPE_NUMBER: | |
2605 | break; | |
2606 | case PROP_TYPE_STRING: | |
2e528b49 | 2607 | err = SET_ERROR(EINVAL); |
428870ff | 2608 | break; |
34dc7c2f BB |
2609 | case PROP_TYPE_INDEX: |
2610 | if (zfs_prop_index_to_string(prop, | |
428870ff | 2611 | intval, &unused) != 0) |
2e528b49 | 2612 | err = SET_ERROR(EINVAL); |
34dc7c2f BB |
2613 | break; |
2614 | default: | |
2615 | cmn_err(CE_PANIC, | |
2616 | "unknown property type"); | |
34dc7c2f | 2617 | } |
34dc7c2f | 2618 | } else { |
2e528b49 | 2619 | err = SET_ERROR(EINVAL); |
34dc7c2f | 2620 | } |
34dc7c2f | 2621 | } |
428870ff BB |
2622 | |
2623 | /* Validate permissions */ | |
2624 | if (err == 0) | |
2625 | err = zfs_check_settable(dsname, pair, CRED()); | |
2626 | ||
2627 | if (err == 0) { | |
a3eeab2d | 2628 | if (source == ZPROP_SRC_INHERITED) |
2629 | err = -1; /* does not need special handling */ | |
2630 | else | |
2631 | err = zfs_prop_set_special(dsname, source, | |
2632 | pair); | |
428870ff BB |
2633 | if (err == -1) { |
2634 | /* | |
2635 | * For better performance we build up a list of | |
2636 | * properties to set in a single transaction. | |
2637 | */ | |
2638 | err = nvlist_add_nvpair(genericnvl, pair); | |
2639 | } else if (err != 0 && nvl != retrynvl) { | |
2640 | /* | |
2641 | * This may be a spurious error caused by | |
2642 | * receiving quota and reservation out of order. | |
2643 | * Try again in a second pass. | |
2644 | */ | |
2645 | err = nvlist_add_nvpair(retrynvl, pair); | |
2646 | } | |
2647 | } | |
2648 | ||
6f1ffb06 MA |
2649 | if (err != 0) { |
2650 | if (errlist != NULL) | |
2651 | fnvlist_add_int32(errlist, propname, err); | |
2652 | rv = err; | |
2653 | } | |
34dc7c2f BB |
2654 | } |
2655 | ||
428870ff BB |
2656 | if (nvl != retrynvl && !nvlist_empty(retrynvl)) { |
2657 | nvl = retrynvl; | |
2658 | goto retry; | |
2659 | } | |
2660 | ||
2661 | if (!nvlist_empty(genericnvl) && | |
2662 | dsl_props_set(dsname, source, genericnvl) != 0) { | |
2663 | /* | |
2664 | * If this fails, we still want to set as many properties as we | |
2665 | * can, so try setting them individually. | |
2666 | */ | |
2667 | pair = NULL; | |
2668 | while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) { | |
2669 | const char *propname = nvpair_name(pair); | |
2670 | int err = 0; | |
2671 | ||
2672 | propval = pair; | |
2673 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2674 | nvlist_t *attrs; | |
6f1ffb06 MA |
2675 | attrs = fnvpair_value_nvlist(pair); |
2676 | propval = fnvlist_lookup_nvpair(attrs, | |
2677 | ZPROP_VALUE); | |
428870ff BB |
2678 | } |
2679 | ||
2680 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
6f1ffb06 | 2681 | strval = fnvpair_value_string(propval); |
13fe0198 MA |
2682 | err = dsl_prop_set_string(dsname, propname, |
2683 | source, strval); | |
a3eeab2d | 2684 | } else if (nvpair_type(propval) == DATA_TYPE_BOOLEAN) { |
2685 | err = dsl_prop_inherit(dsname, propname, | |
2686 | source); | |
428870ff | 2687 | } else { |
6f1ffb06 | 2688 | intval = fnvpair_value_uint64(propval); |
13fe0198 MA |
2689 | err = dsl_prop_set_int(dsname, propname, source, |
2690 | intval); | |
428870ff BB |
2691 | } |
2692 | ||
2693 | if (err != 0) { | |
6f1ffb06 MA |
2694 | if (errlist != NULL) { |
2695 | fnvlist_add_int32(errlist, propname, | |
2696 | err); | |
2697 | } | |
2698 | rv = err; | |
428870ff BB |
2699 | } |
2700 | } | |
9babb374 | 2701 | } |
9babb374 | 2702 | nvlist_free(genericnvl); |
428870ff BB |
2703 | nvlist_free(retrynvl); |
2704 | ||
428870ff | 2705 | return (rv); |
9babb374 BB |
2706 | } |
2707 | ||
2708 | /* | |
2709 | * Check that all the properties are valid user properties. | |
2710 | */ | |
2711 | static int | |
6f1ffb06 | 2712 | zfs_check_userprops(const char *fsname, nvlist_t *nvl) |
9babb374 | 2713 | { |
428870ff | 2714 | nvpair_t *pair = NULL; |
9babb374 BB |
2715 | int error = 0; |
2716 | ||
428870ff BB |
2717 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { |
2718 | const char *propname = nvpair_name(pair); | |
9babb374 BB |
2719 | |
2720 | if (!zfs_prop_user(propname) || | |
428870ff | 2721 | nvpair_type(pair) != DATA_TYPE_STRING) |
2e528b49 | 2722 | return (SET_ERROR(EINVAL)); |
9babb374 | 2723 | |
c65aa5b2 BB |
2724 | if ((error = zfs_secpolicy_write_perms(fsname, |
2725 | ZFS_DELEG_PERM_USERPROP, CRED()))) | |
9babb374 BB |
2726 | return (error); |
2727 | ||
2728 | if (strlen(propname) >= ZAP_MAXNAMELEN) | |
2e528b49 | 2729 | return (SET_ERROR(ENAMETOOLONG)); |
9babb374 | 2730 | |
da536844 | 2731 | if (strlen(fnvpair_value_string(pair)) >= ZAP_MAXVALUELEN) |
2e528b49 | 2732 | return (SET_ERROR(E2BIG)); |
9babb374 | 2733 | } |
34dc7c2f BB |
2734 | return (0); |
2735 | } | |
2736 | ||
428870ff BB |
2737 | static void |
2738 | props_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops) | |
2739 | { | |
2740 | nvpair_t *pair; | |
2741 | ||
2742 | VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2743 | ||
2744 | pair = NULL; | |
2745 | while ((pair = nvlist_next_nvpair(props, pair)) != NULL) { | |
2746 | if (nvlist_exists(skipped, nvpair_name(pair))) | |
2747 | continue; | |
2748 | ||
2749 | VERIFY(nvlist_add_nvpair(*newprops, pair) == 0); | |
2750 | } | |
2751 | } | |
2752 | ||
2753 | static int | |
13fe0198 | 2754 | clear_received_props(const char *dsname, nvlist_t *props, |
428870ff BB |
2755 | nvlist_t *skipped) |
2756 | { | |
2757 | int err = 0; | |
2758 | nvlist_t *cleared_props = NULL; | |
2759 | props_skip(props, skipped, &cleared_props); | |
2760 | if (!nvlist_empty(cleared_props)) { | |
2761 | /* | |
2762 | * Acts on local properties until the dataset has received | |
2763 | * properties at least once on or after SPA_VERSION_RECVD_PROPS. | |
2764 | */ | |
2765 | zprop_source_t flags = (ZPROP_SRC_NONE | | |
13fe0198 MA |
2766 | (dsl_prop_get_hasrecvd(dsname) ? ZPROP_SRC_RECEIVED : 0)); |
2767 | err = zfs_set_prop_nvlist(dsname, flags, cleared_props, NULL); | |
428870ff BB |
2768 | } |
2769 | nvlist_free(cleared_props); | |
2770 | return (err); | |
2771 | } | |
2772 | ||
34dc7c2f BB |
2773 | /* |
2774 | * inputs: | |
2775 | * zc_name name of filesystem | |
9babb374 | 2776 | * zc_value name of property to set |
34dc7c2f | 2777 | * zc_nvlist_src{_size} nvlist of properties to apply |
428870ff | 2778 | * zc_cookie received properties flag |
34dc7c2f | 2779 | * |
428870ff BB |
2780 | * outputs: |
2781 | * zc_nvlist_dst{_size} error for each unapplied received property | |
34dc7c2f BB |
2782 | */ |
2783 | static int | |
2784 | zfs_ioc_set_prop(zfs_cmd_t *zc) | |
2785 | { | |
2786 | nvlist_t *nvl; | |
428870ff BB |
2787 | boolean_t received = zc->zc_cookie; |
2788 | zprop_source_t source = (received ? ZPROP_SRC_RECEIVED : | |
2789 | ZPROP_SRC_LOCAL); | |
6f1ffb06 | 2790 | nvlist_t *errors; |
34dc7c2f BB |
2791 | int error; |
2792 | ||
2793 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2794 | zc->zc_iflags, &nvl)) != 0) |
34dc7c2f BB |
2795 | return (error); |
2796 | ||
428870ff | 2797 | if (received) { |
b128c09f | 2798 | nvlist_t *origprops; |
b128c09f | 2799 | |
13fe0198 MA |
2800 | if (dsl_prop_get_received(zc->zc_name, &origprops) == 0) { |
2801 | (void) clear_received_props(zc->zc_name, | |
2802 | origprops, nvl); | |
2803 | nvlist_free(origprops); | |
428870ff | 2804 | } |
13fe0198 MA |
2805 | |
2806 | error = dsl_prop_set_hasrecvd(zc->zc_name); | |
b128c09f BB |
2807 | } |
2808 | ||
6f1ffb06 | 2809 | errors = fnvlist_alloc(); |
13fe0198 MA |
2810 | if (error == 0) |
2811 | error = zfs_set_prop_nvlist(zc->zc_name, source, nvl, errors); | |
34dc7c2f | 2812 | |
b8864a23 | 2813 | if (zc->zc_nvlist_dst != 0 && errors != NULL) { |
428870ff BB |
2814 | (void) put_nvlist(zc, errors); |
2815 | } | |
2816 | ||
2817 | nvlist_free(errors); | |
34dc7c2f BB |
2818 | nvlist_free(nvl); |
2819 | return (error); | |
2820 | } | |
2821 | ||
2822 | /* | |
2823 | * inputs: | |
2824 | * zc_name name of filesystem | |
2825 | * zc_value name of property to inherit | |
428870ff | 2826 | * zc_cookie revert to received value if TRUE |
34dc7c2f BB |
2827 | * |
2828 | * outputs: none | |
2829 | */ | |
2830 | static int | |
2831 | zfs_ioc_inherit_prop(zfs_cmd_t *zc) | |
2832 | { | |
428870ff BB |
2833 | const char *propname = zc->zc_value; |
2834 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2835 | boolean_t received = zc->zc_cookie; | |
2836 | zprop_source_t source = (received | |
2837 | ? ZPROP_SRC_NONE /* revert to received value, if any */ | |
2838 | : ZPROP_SRC_INHERITED); /* explicitly inherit */ | |
92aceb2a | 2839 | nvlist_t *dummy; |
2840 | nvpair_t *pair; | |
2841 | zprop_type_t type; | |
2842 | int err; | |
428870ff | 2843 | |
92aceb2a | 2844 | if (!received) { |
261c013f BB |
2845 | /* |
2846 | * Only check this in the non-received case. We want to allow | |
2847 | * 'inherit -S' to revert non-inheritable properties like quota | |
2848 | * and reservation to the received or default values even though | |
2849 | * they are not considered inheritable. | |
2850 | */ | |
2851 | if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop)) | |
2852 | return (SET_ERROR(EINVAL)); | |
959f56b9 | 2853 | } |
2854 | ||
92aceb2a | 2855 | if (prop == ZPROP_INVAL) { |
2856 | if (!zfs_prop_user(propname)) | |
2857 | return (SET_ERROR(EINVAL)); | |
2858 | ||
2859 | type = PROP_TYPE_STRING; | |
2860 | } else if (prop == ZFS_PROP_VOLSIZE || prop == ZFS_PROP_VERSION) { | |
2861 | return (SET_ERROR(EINVAL)); | |
2862 | } else { | |
2863 | type = zfs_prop_get_type(prop); | |
2864 | } | |
2865 | ||
2866 | /* | |
2867 | * zfs_prop_set_special() expects properties in the form of an | |
2868 | * nvpair with type info. | |
2869 | */ | |
2870 | dummy = fnvlist_alloc(); | |
2871 | ||
2872 | switch (type) { | |
2873 | case PROP_TYPE_STRING: | |
2874 | VERIFY(0 == nvlist_add_string(dummy, propname, "")); | |
2875 | break; | |
2876 | case PROP_TYPE_NUMBER: | |
2877 | case PROP_TYPE_INDEX: | |
2878 | VERIFY(0 == nvlist_add_uint64(dummy, propname, 0)); | |
2879 | break; | |
2880 | default: | |
2881 | err = SET_ERROR(EINVAL); | |
2882 | goto errout; | |
2883 | } | |
2884 | ||
2885 | pair = nvlist_next_nvpair(dummy, NULL); | |
2886 | if (pair == NULL) { | |
2887 | err = SET_ERROR(EINVAL); | |
2888 | } else { | |
2889 | err = zfs_prop_set_special(zc->zc_name, source, pair); | |
2890 | if (err == -1) /* property is not "special", needs handling */ | |
2891 | err = dsl_prop_inherit(zc->zc_name, zc->zc_value, | |
2892 | source); | |
2893 | } | |
2894 | ||
2895 | errout: | |
2896 | nvlist_free(dummy); | |
2897 | return (err); | |
34dc7c2f BB |
2898 | } |
2899 | ||
2900 | static int | |
2901 | zfs_ioc_pool_set_props(zfs_cmd_t *zc) | |
2902 | { | |
2903 | nvlist_t *props; | |
2904 | spa_t *spa; | |
2905 | int error; | |
428870ff | 2906 | nvpair_t *pair; |
34dc7c2f | 2907 | |
c65aa5b2 BB |
2908 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
2909 | zc->zc_iflags, &props))) | |
34dc7c2f BB |
2910 | return (error); |
2911 | ||
d164b209 BB |
2912 | /* |
2913 | * If the only property is the configfile, then just do a spa_lookup() | |
2914 | * to handle the faulted case. | |
2915 | */ | |
428870ff BB |
2916 | pair = nvlist_next_nvpair(props, NULL); |
2917 | if (pair != NULL && strcmp(nvpair_name(pair), | |
d164b209 | 2918 | zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 && |
428870ff | 2919 | nvlist_next_nvpair(props, pair) == NULL) { |
d164b209 BB |
2920 | mutex_enter(&spa_namespace_lock); |
2921 | if ((spa = spa_lookup(zc->zc_name)) != NULL) { | |
2922 | spa_configfile_set(spa, props, B_FALSE); | |
2923 | spa_config_sync(spa, B_FALSE, B_TRUE); | |
2924 | } | |
2925 | mutex_exit(&spa_namespace_lock); | |
428870ff BB |
2926 | if (spa != NULL) { |
2927 | nvlist_free(props); | |
d164b209 | 2928 | return (0); |
428870ff | 2929 | } |
d164b209 BB |
2930 | } |
2931 | ||
34dc7c2f BB |
2932 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2933 | nvlist_free(props); | |
2934 | return (error); | |
2935 | } | |
2936 | ||
2937 | error = spa_prop_set(spa, props); | |
2938 | ||
2939 | nvlist_free(props); | |
2940 | spa_close(spa, FTAG); | |
2941 | ||
2942 | return (error); | |
2943 | } | |
2944 | ||
2945 | static int | |
2946 | zfs_ioc_pool_get_props(zfs_cmd_t *zc) | |
2947 | { | |
2948 | spa_t *spa; | |
2949 | int error; | |
2950 | nvlist_t *nvp = NULL; | |
2951 | ||
d164b209 BB |
2952 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2953 | /* | |
2954 | * If the pool is faulted, there may be properties we can still | |
2955 | * get (such as altroot and cachefile), so attempt to get them | |
2956 | * anyway. | |
2957 | */ | |
2958 | mutex_enter(&spa_namespace_lock); | |
2959 | if ((spa = spa_lookup(zc->zc_name)) != NULL) | |
2960 | error = spa_prop_get(spa, &nvp); | |
2961 | mutex_exit(&spa_namespace_lock); | |
2962 | } else { | |
2963 | error = spa_prop_get(spa, &nvp); | |
2964 | spa_close(spa, FTAG); | |
2965 | } | |
34dc7c2f | 2966 | |
b8864a23 | 2967 | if (error == 0 && zc->zc_nvlist_dst != 0) |
34dc7c2f BB |
2968 | error = put_nvlist(zc, nvp); |
2969 | else | |
2e528b49 | 2970 | error = SET_ERROR(EFAULT); |
34dc7c2f | 2971 | |
d164b209 | 2972 | nvlist_free(nvp); |
34dc7c2f BB |
2973 | return (error); |
2974 | } | |
2975 | ||
34dc7c2f BB |
2976 | /* |
2977 | * inputs: | |
2978 | * zc_name name of filesystem | |
2979 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
2980 | * zc_perm_action allow/unallow flag | |
2981 | * | |
2982 | * outputs: none | |
2983 | */ | |
2984 | static int | |
2985 | zfs_ioc_set_fsacl(zfs_cmd_t *zc) | |
2986 | { | |
2987 | int error; | |
2988 | nvlist_t *fsaclnv = NULL; | |
2989 | ||
2990 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2991 | zc->zc_iflags, &fsaclnv)) != 0) |
34dc7c2f BB |
2992 | return (error); |
2993 | ||
2994 | /* | |
2995 | * Verify nvlist is constructed correctly | |
2996 | */ | |
2997 | if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) { | |
2998 | nvlist_free(fsaclnv); | |
2e528b49 | 2999 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
3000 | } |
3001 | ||
3002 | /* | |
3003 | * If we don't have PRIV_SYS_MOUNT, then validate | |
3004 | * that user is allowed to hand out each permission in | |
3005 | * the nvlist(s) | |
3006 | */ | |
3007 | ||
3008 | error = secpolicy_zfs(CRED()); | |
13fe0198 | 3009 | if (error != 0) { |
34dc7c2f BB |
3010 | if (zc->zc_perm_action == B_FALSE) { |
3011 | error = dsl_deleg_can_allow(zc->zc_name, | |
3012 | fsaclnv, CRED()); | |
3013 | } else { | |
3014 | error = dsl_deleg_can_unallow(zc->zc_name, | |
3015 | fsaclnv, CRED()); | |
3016 | } | |
3017 | } | |
3018 | ||
3019 | if (error == 0) | |
3020 | error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action); | |
3021 | ||
3022 | nvlist_free(fsaclnv); | |
3023 | return (error); | |
3024 | } | |
3025 | ||
3026 | /* | |
3027 | * inputs: | |
3028 | * zc_name name of filesystem | |
3029 | * | |
3030 | * outputs: | |
3031 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
3032 | */ | |
3033 | static int | |
3034 | zfs_ioc_get_fsacl(zfs_cmd_t *zc) | |
3035 | { | |
3036 | nvlist_t *nvp; | |
3037 | int error; | |
3038 | ||
3039 | if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) { | |
3040 | error = put_nvlist(zc, nvp); | |
3041 | nvlist_free(nvp); | |
3042 | } | |
3043 | ||
3044 | return (error); | |
3045 | } | |
3046 | ||
34dc7c2f BB |
3047 | /* ARGSUSED */ |
3048 | static void | |
3049 | zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx) | |
3050 | { | |
3051 | zfs_creat_t *zct = arg; | |
3052 | ||
3053 | zfs_create_fs(os, cr, zct->zct_zplprops, tx); | |
3054 | } | |
3055 | ||
3056 | #define ZFS_PROP_UNDEFINED ((uint64_t)-1) | |
3057 | ||
3058 | /* | |
3059 | * inputs: | |
b128c09f | 3060 | * os parent objset pointer (NULL if root fs) |
d3cc8b15 WA |
3061 | * fuids_ok fuids allowed in this version of the spa? |
3062 | * sa_ok SAs allowed in this version of the spa? | |
3063 | * createprops list of properties requested by creator | |
34dc7c2f BB |
3064 | * |
3065 | * outputs: | |
3066 | * zplprops values for the zplprops we attach to the master node object | |
b128c09f | 3067 | * is_ci true if requested file system will be purely case-insensitive |
34dc7c2f BB |
3068 | * |
3069 | * Determine the settings for utf8only, normalization and | |
3070 | * casesensitivity. Specific values may have been requested by the | |
3071 | * creator and/or we can inherit values from the parent dataset. If | |
3072 | * the file system is of too early a vintage, a creator can not | |
3073 | * request settings for these properties, even if the requested | |
3074 | * setting is the default value. We don't actually want to create dsl | |
3075 | * properties for these, so remove them from the source nvlist after | |
3076 | * processing. | |
3077 | */ | |
3078 | static int | |
9babb374 | 3079 | zfs_fill_zplprops_impl(objset_t *os, uint64_t zplver, |
428870ff BB |
3080 | boolean_t fuids_ok, boolean_t sa_ok, nvlist_t *createprops, |
3081 | nvlist_t *zplprops, boolean_t *is_ci) | |
34dc7c2f | 3082 | { |
34dc7c2f BB |
3083 | uint64_t sense = ZFS_PROP_UNDEFINED; |
3084 | uint64_t norm = ZFS_PROP_UNDEFINED; | |
3085 | uint64_t u8 = ZFS_PROP_UNDEFINED; | |
b129c659 | 3086 | int error; |
34dc7c2f BB |
3087 | |
3088 | ASSERT(zplprops != NULL); | |
3089 | ||
87a275d9 AG |
3090 | if (os != NULL && os->os_phys->os_type != DMU_OST_ZFS) |
3091 | return (SET_ERROR(EINVAL)); | |
3092 | ||
34dc7c2f BB |
3093 | /* |
3094 | * Pull out creator prop choices, if any. | |
3095 | */ | |
3096 | if (createprops) { | |
b128c09f BB |
3097 | (void) nvlist_lookup_uint64(createprops, |
3098 | zfs_prop_to_name(ZFS_PROP_VERSION), &zplver); | |
34dc7c2f BB |
3099 | (void) nvlist_lookup_uint64(createprops, |
3100 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm); | |
3101 | (void) nvlist_remove_all(createprops, | |
3102 | zfs_prop_to_name(ZFS_PROP_NORMALIZE)); | |
3103 | (void) nvlist_lookup_uint64(createprops, | |
3104 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8); | |
3105 | (void) nvlist_remove_all(createprops, | |
3106 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); | |
3107 | (void) nvlist_lookup_uint64(createprops, | |
3108 | zfs_prop_to_name(ZFS_PROP_CASE), &sense); | |
3109 | (void) nvlist_remove_all(createprops, | |
3110 | zfs_prop_to_name(ZFS_PROP_CASE)); | |
3111 | } | |
3112 | ||
3113 | /* | |
b128c09f BB |
3114 | * If the zpl version requested is whacky or the file system |
3115 | * or pool is version is too "young" to support normalization | |
3116 | * and the creator tried to set a value for one of the props, | |
3117 | * error out. | |
34dc7c2f | 3118 | */ |
b128c09f BB |
3119 | if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) || |
3120 | (zplver >= ZPL_VERSION_FUID && !fuids_ok) || | |
428870ff | 3121 | (zplver >= ZPL_VERSION_SA && !sa_ok) || |
b128c09f | 3122 | (zplver < ZPL_VERSION_NORMALIZATION && |
34dc7c2f | 3123 | (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED || |
b128c09f | 3124 | sense != ZFS_PROP_UNDEFINED))) |
2e528b49 | 3125 | return (SET_ERROR(ENOTSUP)); |
34dc7c2f BB |
3126 | |
3127 | /* | |
3128 | * Put the version in the zplprops | |
3129 | */ | |
3130 | VERIFY(nvlist_add_uint64(zplprops, | |
3131 | zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0); | |
3132 | ||
b129c659 MM |
3133 | if (norm == ZFS_PROP_UNDEFINED && |
3134 | (error = zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm)) != 0) | |
3135 | return (error); | |
34dc7c2f BB |
3136 | VERIFY(nvlist_add_uint64(zplprops, |
3137 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0); | |
3138 | ||
3139 | /* | |
3140 | * If we're normalizing, names must always be valid UTF-8 strings. | |
3141 | */ | |
3142 | if (norm) | |
3143 | u8 = 1; | |
b129c659 MM |
3144 | if (u8 == ZFS_PROP_UNDEFINED && |
3145 | (error = zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8)) != 0) | |
3146 | return (error); | |
34dc7c2f BB |
3147 | VERIFY(nvlist_add_uint64(zplprops, |
3148 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0); | |
3149 | ||
b129c659 MM |
3150 | if (sense == ZFS_PROP_UNDEFINED && |
3151 | (error = zfs_get_zplprop(os, ZFS_PROP_CASE, &sense)) != 0) | |
3152 | return (error); | |
34dc7c2f BB |
3153 | VERIFY(nvlist_add_uint64(zplprops, |
3154 | zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0); | |
3155 | ||
3156 | if (is_ci) | |
3157 | *is_ci = (sense == ZFS_CASE_INSENSITIVE); | |
3158 | ||
34dc7c2f BB |
3159 | return (0); |
3160 | } | |
3161 | ||
b128c09f BB |
3162 | static int |
3163 | zfs_fill_zplprops(const char *dataset, nvlist_t *createprops, | |
3164 | nvlist_t *zplprops, boolean_t *is_ci) | |
3165 | { | |
428870ff | 3166 | boolean_t fuids_ok, sa_ok; |
b128c09f BB |
3167 | uint64_t zplver = ZPL_VERSION; |
3168 | objset_t *os = NULL; | |
eca7b760 | 3169 | char parentname[ZFS_MAX_DATASET_NAME_LEN]; |
b128c09f | 3170 | char *cp; |
428870ff BB |
3171 | spa_t *spa; |
3172 | uint64_t spa_vers; | |
b128c09f BB |
3173 | int error; |
3174 | ||
3175 | (void) strlcpy(parentname, dataset, sizeof (parentname)); | |
3176 | cp = strrchr(parentname, '/'); | |
3177 | ASSERT(cp != NULL); | |
3178 | cp[0] = '\0'; | |
3179 | ||
428870ff BB |
3180 | if ((error = spa_open(dataset, &spa, FTAG)) != 0) |
3181 | return (error); | |
3182 | ||
3183 | spa_vers = spa_version(spa); | |
3184 | spa_close(spa, FTAG); | |
3185 | ||
3186 | zplver = zfs_zpl_version_map(spa_vers); | |
3187 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
3188 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f BB |
3189 | |
3190 | /* | |
3191 | * Open parent object set so we can inherit zplprop values. | |
3192 | */ | |
428870ff | 3193 | if ((error = dmu_objset_hold(parentname, FTAG, &os)) != 0) |
b128c09f BB |
3194 | return (error); |
3195 | ||
428870ff | 3196 | error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, sa_ok, createprops, |
b128c09f | 3197 | zplprops, is_ci); |
428870ff | 3198 | dmu_objset_rele(os, FTAG); |
b128c09f BB |
3199 | return (error); |
3200 | } | |
3201 | ||
3202 | static int | |
3203 | zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops, | |
3204 | nvlist_t *zplprops, boolean_t *is_ci) | |
3205 | { | |
428870ff BB |
3206 | boolean_t fuids_ok; |
3207 | boolean_t sa_ok; | |
b128c09f BB |
3208 | uint64_t zplver = ZPL_VERSION; |
3209 | int error; | |
3210 | ||
428870ff BB |
3211 | zplver = zfs_zpl_version_map(spa_vers); |
3212 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
3213 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f | 3214 | |
428870ff BB |
3215 | error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, sa_ok, |
3216 | createprops, zplprops, is_ci); | |
b128c09f BB |
3217 | return (error); |
3218 | } | |
3219 | ||
34dc7c2f | 3220 | /* |
6f1ffb06 MA |
3221 | * innvl: { |
3222 | * "type" -> dmu_objset_type_t (int32) | |
3223 | * (optional) "props" -> { prop -> value } | |
b5256303 TC |
3224 | * (optional) "hidden_args" -> { "wkeydata" -> value } |
3225 | * raw uint8_t array of encryption wrapping key data (32 bytes) | |
6f1ffb06 | 3226 | * } |
34dc7c2f | 3227 | * |
6f1ffb06 | 3228 | * outnvl: propname -> error code (int32) |
34dc7c2f BB |
3229 | */ |
3230 | static int | |
6f1ffb06 | 3231 | zfs_ioc_create(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3232 | { |
34dc7c2f | 3233 | int error = 0; |
6f1ffb06 | 3234 | zfs_creat_t zct = { 0 }; |
34dc7c2f | 3235 | nvlist_t *nvprops = NULL; |
b5256303 | 3236 | nvlist_t *hidden_args = NULL; |
34dc7c2f | 3237 | void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx); |
6f1ffb06 MA |
3238 | int32_t type32; |
3239 | dmu_objset_type_t type; | |
3240 | boolean_t is_insensitive = B_FALSE; | |
b5256303 | 3241 | dsl_crypto_params_t *dcp = NULL; |
34dc7c2f | 3242 | |
6f1ffb06 | 3243 | if (nvlist_lookup_int32(innvl, "type", &type32) != 0) |
2e528b49 | 3244 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3245 | type = type32; |
3246 | (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); | |
b5256303 | 3247 | (void) nvlist_lookup_nvlist(innvl, ZPOOL_HIDDEN_ARGS, &hidden_args); |
34dc7c2f | 3248 | |
6f1ffb06 | 3249 | switch (type) { |
34dc7c2f BB |
3250 | case DMU_OST_ZFS: |
3251 | cbfunc = zfs_create_cb; | |
3252 | break; | |
3253 | ||
3254 | case DMU_OST_ZVOL: | |
3255 | cbfunc = zvol_create_cb; | |
3256 | break; | |
3257 | ||
3258 | default: | |
3259 | cbfunc = NULL; | |
3260 | break; | |
3261 | } | |
6f1ffb06 MA |
3262 | if (strchr(fsname, '@') || |
3263 | strchr(fsname, '%')) | |
2e528b49 | 3264 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3265 | |
34dc7c2f BB |
3266 | zct.zct_props = nvprops; |
3267 | ||
6f1ffb06 | 3268 | if (cbfunc == NULL) |
2e528b49 | 3269 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3270 | |
6f1ffb06 MA |
3271 | if (type == DMU_OST_ZVOL) { |
3272 | uint64_t volsize, volblocksize; | |
34dc7c2f | 3273 | |
6f1ffb06 | 3274 | if (nvprops == NULL) |
2e528b49 | 3275 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3276 | if (nvlist_lookup_uint64(nvprops, |
3277 | zfs_prop_to_name(ZFS_PROP_VOLSIZE), &volsize) != 0) | |
2e528b49 | 3278 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3279 | |
6f1ffb06 MA |
3280 | if ((error = nvlist_lookup_uint64(nvprops, |
3281 | zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
3282 | &volblocksize)) != 0 && error != ENOENT) | |
2e528b49 | 3283 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3284 | |
6f1ffb06 MA |
3285 | if (error != 0) |
3286 | volblocksize = zfs_prop_default_numeric( | |
3287 | ZFS_PROP_VOLBLOCKSIZE); | |
34dc7c2f | 3288 | |
4cb7b9c5 | 3289 | if ((error = zvol_check_volblocksize(fsname, |
6f1ffb06 MA |
3290 | volblocksize)) != 0 || |
3291 | (error = zvol_check_volsize(volsize, | |
3292 | volblocksize)) != 0) | |
3293 | return (error); | |
3294 | } else if (type == DMU_OST_ZFS) { | |
3295 | int error; | |
34dc7c2f | 3296 | |
6f1ffb06 MA |
3297 | /* |
3298 | * We have to have normalization and | |
3299 | * case-folding flags correct when we do the | |
3300 | * file system creation, so go figure them out | |
3301 | * now. | |
3302 | */ | |
3303 | VERIFY(nvlist_alloc(&zct.zct_zplprops, | |
3304 | NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3305 | error = zfs_fill_zplprops(fsname, nvprops, | |
3306 | zct.zct_zplprops, &is_insensitive); | |
3307 | if (error != 0) { | |
3308 | nvlist_free(zct.zct_zplprops); | |
3309 | return (error); | |
34dc7c2f | 3310 | } |
34dc7c2f BB |
3311 | } |
3312 | ||
b5256303 TC |
3313 | error = dsl_crypto_params_create_nvlist(DCP_CMD_NONE, nvprops, |
3314 | hidden_args, &dcp); | |
3315 | if (error != 0) { | |
3316 | nvlist_free(zct.zct_zplprops); | |
3317 | return (error); | |
3318 | } | |
3319 | ||
6f1ffb06 | 3320 | error = dmu_objset_create(fsname, type, |
b5256303 TC |
3321 | is_insensitive ? DS_FLAG_CI_DATASET : 0, dcp, cbfunc, &zct); |
3322 | ||
6f1ffb06 | 3323 | nvlist_free(zct.zct_zplprops); |
b5256303 | 3324 | dsl_crypto_params_free(dcp, !!error); |
6f1ffb06 | 3325 | |
34dc7c2f BB |
3326 | /* |
3327 | * It would be nice to do this atomically. | |
3328 | */ | |
3329 | if (error == 0) { | |
6f1ffb06 MA |
3330 | error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, |
3331 | nvprops, outnvl); | |
f74b821a BB |
3332 | if (error != 0) { |
3333 | spa_t *spa; | |
3334 | int error2; | |
3335 | ||
3336 | /* | |
3337 | * Volumes will return EBUSY and cannot be destroyed | |
3338 | * until all asynchronous minor handling has completed. | |
3339 | * Wait for the spa_zvol_taskq to drain then retry. | |
3340 | */ | |
3341 | error2 = dsl_destroy_head(fsname); | |
3342 | while ((error2 == EBUSY) && (type == DMU_OST_ZVOL)) { | |
3343 | error2 = spa_open(fsname, &spa, FTAG); | |
3344 | if (error2 == 0) { | |
3345 | taskq_wait(spa->spa_zvol_taskq); | |
3346 | spa_close(spa, FTAG); | |
3347 | } | |
3348 | error2 = dsl_destroy_head(fsname); | |
3349 | } | |
3350 | } | |
34dc7c2f | 3351 | } |
34dc7c2f BB |
3352 | return (error); |
3353 | } | |
3354 | ||
3355 | /* | |
6f1ffb06 MA |
3356 | * innvl: { |
3357 | * "origin" -> name of origin snapshot | |
3358 | * (optional) "props" -> { prop -> value } | |
b5256303 TC |
3359 | * (optional) "hidden_args" -> { "wkeydata" -> value } |
3360 | * raw uint8_t array of encryption wrapping key data (32 bytes) | |
6f1ffb06 | 3361 | * } |
34dc7c2f | 3362 | * |
428870ff | 3363 | * outputs: |
6f1ffb06 | 3364 | * outnvl: propname -> error code (int32) |
34dc7c2f BB |
3365 | */ |
3366 | static int | |
6f1ffb06 | 3367 | zfs_ioc_clone(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3368 | { |
6f1ffb06 | 3369 | int error = 0; |
b128c09f | 3370 | nvlist_t *nvprops = NULL; |
6f1ffb06 | 3371 | char *origin_name; |
b128c09f | 3372 | |
6f1ffb06 | 3373 | if (nvlist_lookup_string(innvl, "origin", &origin_name) != 0) |
2e528b49 | 3374 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 3375 | (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); |
b128c09f | 3376 | |
6f1ffb06 MA |
3377 | if (strchr(fsname, '@') || |
3378 | strchr(fsname, '%')) | |
2e528b49 | 3379 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3380 | |
3381 | if (dataset_namecheck(origin_name, NULL, NULL) != 0) | |
2e528b49 | 3382 | return (SET_ERROR(EINVAL)); |
b5256303 | 3383 | |
13fe0198 | 3384 | error = dmu_objset_clone(fsname, origin_name); |
b128c09f | 3385 | |
6f1ffb06 MA |
3386 | /* |
3387 | * It would be nice to do this atomically. | |
3388 | */ | |
3389 | if (error == 0) { | |
3390 | error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, | |
3391 | nvprops, outnvl); | |
3392 | if (error != 0) | |
13fe0198 | 3393 | (void) dsl_destroy_head(fsname); |
b128c09f | 3394 | } |
6f1ffb06 MA |
3395 | return (error); |
3396 | } | |
9babb374 | 3397 | |
6f1ffb06 MA |
3398 | /* |
3399 | * innvl: { | |
3400 | * "snaps" -> { snapshot1, snapshot2 } | |
3401 | * (optional) "props" -> { prop -> value (string) } | |
3402 | * } | |
3403 | * | |
3404 | * outnvl: snapshot -> error code (int32) | |
6f1ffb06 MA |
3405 | */ |
3406 | static int | |
3407 | zfs_ioc_snapshot(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) | |
3408 | { | |
3409 | nvlist_t *snaps; | |
3410 | nvlist_t *props = NULL; | |
3411 | int error, poollen; | |
1c27024e | 3412 | nvpair_t *pair; |
9babb374 | 3413 | |
6f1ffb06 MA |
3414 | (void) nvlist_lookup_nvlist(innvl, "props", &props); |
3415 | if ((error = zfs_check_userprops(poolname, props)) != 0) | |
3416 | return (error); | |
3417 | ||
3418 | if (!nvlist_empty(props) && | |
3419 | zfs_earlier_version(poolname, SPA_VERSION_SNAP_PROPS)) | |
2e528b49 | 3420 | return (SET_ERROR(ENOTSUP)); |
6f1ffb06 MA |
3421 | |
3422 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) | |
2e528b49 | 3423 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3424 | poollen = strlen(poolname); |
3425 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; | |
3426 | pair = nvlist_next_nvpair(snaps, pair)) { | |
3427 | const char *name = nvpair_name(pair); | |
3428 | const char *cp = strchr(name, '@'); | |
3429 | ||
3430 | /* | |
3431 | * The snap name must contain an @, and the part after it must | |
3432 | * contain only valid characters. | |
3433 | */ | |
da536844 MA |
3434 | if (cp == NULL || |
3435 | zfs_component_namecheck(cp + 1, NULL, NULL) != 0) | |
2e528b49 | 3436 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3437 | |
3438 | /* | |
3439 | * The snap must be in the specified pool. | |
3440 | */ | |
3441 | if (strncmp(name, poolname, poollen) != 0 || | |
3442 | (name[poollen] != '/' && name[poollen] != '@')) | |
2e528b49 | 3443 | return (SET_ERROR(EXDEV)); |
6f1ffb06 MA |
3444 | |
3445 | /* This must be the only snap of this fs. */ | |
1c27024e | 3446 | for (nvpair_t *pair2 = nvlist_next_nvpair(snaps, pair); |
6f1ffb06 MA |
3447 | pair2 != NULL; pair2 = nvlist_next_nvpair(snaps, pair2)) { |
3448 | if (strncmp(name, nvpair_name(pair2), cp - name + 1) | |
3449 | == 0) { | |
2e528b49 | 3450 | return (SET_ERROR(EXDEV)); |
6f1ffb06 MA |
3451 | } |
3452 | } | |
3453 | } | |
3454 | ||
13fe0198 | 3455 | error = dsl_dataset_snapshot(snaps, props, outnvl); |
ba6a2402 | 3456 | |
6f1ffb06 MA |
3457 | return (error); |
3458 | } | |
3459 | ||
3460 | /* | |
3461 | * innvl: "message" -> string | |
3462 | */ | |
3463 | /* ARGSUSED */ | |
3464 | static int | |
3465 | zfs_ioc_log_history(const char *unused, nvlist_t *innvl, nvlist_t *outnvl) | |
3466 | { | |
3467 | char *message; | |
3468 | spa_t *spa; | |
3469 | int error; | |
3470 | char *poolname; | |
3471 | ||
3472 | /* | |
3473 | * The poolname in the ioctl is not set, we get it from the TSD, | |
3474 | * which was set at the end of the last successful ioctl that allows | |
3475 | * logging. The secpolicy func already checked that it is set. | |
3476 | * Only one log ioctl is allowed after each successful ioctl, so | |
3477 | * we clear the TSD here. | |
3478 | */ | |
3479 | poolname = tsd_get(zfs_allow_log_key); | |
9f3d1407 | 3480 | if (poolname == NULL) |
3481 | return (SET_ERROR(EINVAL)); | |
6f1ffb06 MA |
3482 | (void) tsd_set(zfs_allow_log_key, NULL); |
3483 | error = spa_open(poolname, &spa, FTAG); | |
3484 | strfree(poolname); | |
3485 | if (error != 0) | |
3486 | return (error); | |
3487 | ||
3488 | if (nvlist_lookup_string(innvl, "message", &message) != 0) { | |
3489 | spa_close(spa, FTAG); | |
2e528b49 | 3490 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3491 | } |
3492 | ||
3493 | if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { | |
3494 | spa_close(spa, FTAG); | |
2e528b49 | 3495 | return (SET_ERROR(ENOTSUP)); |
6f1ffb06 MA |
3496 | } |
3497 | ||
3498 | error = spa_history_log(spa, message); | |
3499 | spa_close(spa, FTAG); | |
b128c09f | 3500 | return (error); |
34dc7c2f BB |
3501 | } |
3502 | ||
ebe7e575 | 3503 | /* |
13fe0198 MA |
3504 | * The dp_config_rwlock must not be held when calling this, because the |
3505 | * unmount may need to write out data. | |
3506 | * | |
3507 | * This function is best-effort. Callers must deal gracefully if it | |
3508 | * remains mounted (or is remounted after this call). | |
d09f25dc | 3509 | * |
278bee93 BB |
3510 | * Returns 0 if the argument is not a snapshot, or it is not currently a |
3511 | * filesystem, or we were able to unmount it. Returns error code otherwise. | |
ebe7e575 | 3512 | */ |
8d103d88 | 3513 | void |
13fe0198 | 3514 | zfs_unmount_snap(const char *snapname) |
34dc7c2f | 3515 | { |
278bee93 | 3516 | if (strchr(snapname, '@') == NULL) |
8d103d88 | 3517 | return; |
ebe7e575 | 3518 | |
8d103d88 | 3519 | (void) zfsctl_snapshot_unmount((char *)snapname, MNT_FORCE); |
13fe0198 MA |
3520 | } |
3521 | ||
3522 | /* ARGSUSED */ | |
3523 | static int | |
3524 | zfs_unmount_snap_cb(const char *snapname, void *arg) | |
3525 | { | |
8d103d88 SD |
3526 | zfs_unmount_snap(snapname); |
3527 | return (0); | |
13fe0198 MA |
3528 | } |
3529 | ||
3530 | /* | |
3531 | * When a clone is destroyed, its origin may also need to be destroyed, | |
3532 | * in which case it must be unmounted. This routine will do that unmount | |
3533 | * if necessary. | |
3534 | */ | |
3535 | void | |
3536 | zfs_destroy_unmount_origin(const char *fsname) | |
3537 | { | |
3538 | int error; | |
3539 | objset_t *os; | |
3540 | dsl_dataset_t *ds; | |
3541 | ||
3542 | error = dmu_objset_hold(fsname, FTAG, &os); | |
3543 | if (error != 0) | |
3544 | return; | |
3545 | ds = dmu_objset_ds(os); | |
3546 | if (dsl_dir_is_clone(ds->ds_dir) && DS_IS_DEFER_DESTROY(ds->ds_prev)) { | |
eca7b760 | 3547 | char originname[ZFS_MAX_DATASET_NAME_LEN]; |
13fe0198 MA |
3548 | dsl_dataset_name(ds->ds_prev, originname); |
3549 | dmu_objset_rele(os, FTAG); | |
8d103d88 | 3550 | zfs_unmount_snap(originname); |
13fe0198 MA |
3551 | } else { |
3552 | dmu_objset_rele(os, FTAG); | |
3553 | } | |
34dc7c2f BB |
3554 | } |
3555 | ||
3556 | /* | |
6f1ffb06 MA |
3557 | * innvl: { |
3558 | * "snaps" -> { snapshot1, snapshot2 } | |
3559 | * (optional boolean) "defer" | |
3560 | * } | |
34dc7c2f | 3561 | * |
6f1ffb06 | 3562 | * outnvl: snapshot -> error code (int32) |
34dc7c2f | 3563 | */ |
da536844 | 3564 | /* ARGSUSED */ |
34dc7c2f | 3565 | static int |
6f1ffb06 | 3566 | zfs_ioc_destroy_snaps(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3567 | { |
6f1ffb06 | 3568 | nvlist_t *snaps; |
330d06f9 | 3569 | nvpair_t *pair; |
6f1ffb06 | 3570 | boolean_t defer; |
34dc7c2f | 3571 | |
6f1ffb06 | 3572 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) |
2e528b49 | 3573 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 3574 | defer = nvlist_exists(innvl, "defer"); |
330d06f9 | 3575 | |
6f1ffb06 MA |
3576 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; |
3577 | pair = nvlist_next_nvpair(snaps, pair)) { | |
8d103d88 | 3578 | zfs_unmount_snap(nvpair_name(pair)); |
da536844 MA |
3579 | } |
3580 | ||
3581 | return (dsl_destroy_snapshots_nvl(snaps, defer, outnvl)); | |
3582 | } | |
3583 | ||
3584 | /* | |
3585 | * Create bookmarks. Bookmark names are of the form <fs>#<bmark>. | |
3586 | * All bookmarks must be in the same pool. | |
3587 | * | |
3588 | * innvl: { | |
3589 | * bookmark1 -> snapshot1, bookmark2 -> snapshot2 | |
3590 | * } | |
3591 | * | |
3592 | * outnvl: bookmark -> error code (int32) | |
3593 | * | |
3594 | */ | |
3595 | /* ARGSUSED */ | |
3596 | static int | |
3597 | zfs_ioc_bookmark(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) | |
3598 | { | |
1c27024e | 3599 | for (nvpair_t *pair = nvlist_next_nvpair(innvl, NULL); |
da536844 MA |
3600 | pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { |
3601 | char *snap_name; | |
3602 | ||
3603 | /* | |
3604 | * Verify the snapshot argument. | |
3605 | */ | |
3606 | if (nvpair_value_string(pair, &snap_name) != 0) | |
3607 | return (SET_ERROR(EINVAL)); | |
3608 | ||
3609 | ||
3610 | /* Verify that the keys (bookmarks) are unique */ | |
1c27024e | 3611 | for (nvpair_t *pair2 = nvlist_next_nvpair(innvl, pair); |
da536844 MA |
3612 | pair2 != NULL; pair2 = nvlist_next_nvpair(innvl, pair2)) { |
3613 | if (strcmp(nvpair_name(pair), nvpair_name(pair2)) == 0) | |
3614 | return (SET_ERROR(EINVAL)); | |
3615 | } | |
3616 | } | |
3617 | ||
3618 | return (dsl_bookmark_create(innvl, outnvl)); | |
3619 | } | |
3620 | ||
3621 | /* | |
3622 | * innvl: { | |
3623 | * property 1, property 2, ... | |
3624 | * } | |
3625 | * | |
3626 | * outnvl: { | |
3627 | * bookmark name 1 -> { property 1, property 2, ... }, | |
3628 | * bookmark name 2 -> { property 1, property 2, ... } | |
3629 | * } | |
3630 | * | |
3631 | */ | |
3632 | static int | |
3633 | zfs_ioc_get_bookmarks(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) | |
3634 | { | |
3635 | return (dsl_get_bookmarks(fsname, innvl, outnvl)); | |
3636 | } | |
3637 | ||
3638 | /* | |
3639 | * innvl: { | |
3640 | * bookmark name 1, bookmark name 2 | |
3641 | * } | |
3642 | * | |
3643 | * outnvl: bookmark -> error code (int32) | |
3644 | * | |
3645 | */ | |
3646 | static int | |
3647 | zfs_ioc_destroy_bookmarks(const char *poolname, nvlist_t *innvl, | |
3648 | nvlist_t *outnvl) | |
3649 | { | |
3650 | int error, poollen; | |
da536844 MA |
3651 | |
3652 | poollen = strlen(poolname); | |
1c27024e | 3653 | for (nvpair_t *pair = nvlist_next_nvpair(innvl, NULL); |
da536844 | 3654 | pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { |
330d06f9 | 3655 | const char *name = nvpair_name(pair); |
da536844 | 3656 | const char *cp = strchr(name, '#'); |
6f1ffb06 | 3657 | |
330d06f9 | 3658 | /* |
da536844 MA |
3659 | * The bookmark name must contain an #, and the part after it |
3660 | * must contain only valid characters. | |
3661 | */ | |
3662 | if (cp == NULL || | |
3663 | zfs_component_namecheck(cp + 1, NULL, NULL) != 0) | |
3664 | return (SET_ERROR(EINVAL)); | |
3665 | ||
3666 | /* | |
3667 | * The bookmark must be in the specified pool. | |
330d06f9 | 3668 | */ |
6f1ffb06 | 3669 | if (strncmp(name, poolname, poollen) != 0 || |
da536844 | 3670 | (name[poollen] != '/' && name[poollen] != '#')) |
2e528b49 | 3671 | return (SET_ERROR(EXDEV)); |
330d06f9 MA |
3672 | } |
3673 | ||
da536844 MA |
3674 | error = dsl_bookmark_destroy(innvl, outnvl); |
3675 | return (error); | |
34dc7c2f BB |
3676 | } |
3677 | ||
d99a0153 CW |
3678 | static int |
3679 | zfs_ioc_channel_program(const char *poolname, nvlist_t *innvl, | |
3680 | nvlist_t *outnvl) | |
3681 | { | |
3682 | char *program; | |
3683 | uint64_t instrlimit, memlimit; | |
5b72a38d | 3684 | boolean_t sync_flag; |
d99a0153 CW |
3685 | nvpair_t *nvarg = NULL; |
3686 | ||
3687 | if (0 != nvlist_lookup_string(innvl, ZCP_ARG_PROGRAM, &program)) { | |
3688 | return (EINVAL); | |
3689 | } | |
5b72a38d SD |
3690 | if (0 != nvlist_lookup_boolean_value(innvl, ZCP_ARG_SYNC, &sync_flag)) { |
3691 | sync_flag = B_TRUE; | |
3692 | } | |
d99a0153 CW |
3693 | if (0 != nvlist_lookup_uint64(innvl, ZCP_ARG_INSTRLIMIT, &instrlimit)) { |
3694 | instrlimit = ZCP_DEFAULT_INSTRLIMIT; | |
3695 | } | |
3696 | if (0 != nvlist_lookup_uint64(innvl, ZCP_ARG_MEMLIMIT, &memlimit)) { | |
3697 | memlimit = ZCP_DEFAULT_MEMLIMIT; | |
3698 | } | |
3699 | if (0 != nvlist_lookup_nvpair(innvl, ZCP_ARG_ARGLIST, &nvarg)) { | |
3700 | return (EINVAL); | |
3701 | } | |
3702 | ||
3703 | if (instrlimit == 0 || instrlimit > zfs_lua_max_instrlimit) | |
3704 | return (EINVAL); | |
234c91c5 | 3705 | if (memlimit == 0 || memlimit > zfs_lua_max_memlimit) |
d99a0153 CW |
3706 | return (EINVAL); |
3707 | ||
5b72a38d | 3708 | return (zcp_eval(poolname, program, sync_flag, instrlimit, memlimit, |
d99a0153 CW |
3709 | nvarg, outnvl)); |
3710 | } | |
3711 | ||
34dc7c2f BB |
3712 | /* |
3713 | * inputs: | |
3714 | * zc_name name of dataset to destroy | |
3715 | * zc_objset_type type of objset | |
45d1cae3 | 3716 | * zc_defer_destroy mark for deferred destroy |
34dc7c2f BB |
3717 | * |
3718 | * outputs: none | |
3719 | */ | |
3720 | static int | |
3721 | zfs_ioc_destroy(zfs_cmd_t *zc) | |
3722 | { | |
428870ff | 3723 | int err; |
d09f25dc | 3724 | |
8d103d88 SD |
3725 | if (zc->zc_objset_type == DMU_OST_ZFS) |
3726 | zfs_unmount_snap(zc->zc_name); | |
34dc7c2f | 3727 | |
1b87e0f5 | 3728 | if (strchr(zc->zc_name, '@')) { |
13fe0198 | 3729 | err = dsl_destroy_snapshot(zc->zc_name, zc->zc_defer_destroy); |
1b87e0f5 | 3730 | } else { |
13fe0198 | 3731 | err = dsl_destroy_head(zc->zc_name); |
1b87e0f5 RS |
3732 | if (err == EEXIST) { |
3733 | /* | |
3734 | * It is possible that the given DS may have | |
3735 | * hidden child (%recv) datasets - "leftovers" | |
3736 | * resulting from the previously interrupted | |
3737 | * 'zfs receive'. | |
3738 | * | |
3739 | * 6 extra bytes for /%recv | |
3740 | */ | |
3741 | char namebuf[ZFS_MAX_DATASET_NAME_LEN + 6]; | |
3742 | ||
682ce104 TH |
3743 | if (snprintf(namebuf, sizeof (namebuf), "%s/%s", |
3744 | zc->zc_name, recv_clone_name) >= | |
3745 | sizeof (namebuf)) | |
3746 | return (SET_ERROR(EINVAL)); | |
1b87e0f5 RS |
3747 | |
3748 | /* | |
3749 | * Try to remove the hidden child (%recv) and after | |
3750 | * that try to remove the target dataset. | |
3751 | * If the hidden child (%recv) does not exist | |
3752 | * the original error (EEXIST) will be returned | |
3753 | */ | |
3754 | err = dsl_destroy_head(namebuf); | |
3755 | if (err == 0) | |
3756 | err = dsl_destroy_head(zc->zc_name); | |
3757 | else if (err == ENOENT) | |
ecb2b7dc | 3758 | err = SET_ERROR(EEXIST); |
1b87e0f5 RS |
3759 | } |
3760 | } | |
a0bd735a | 3761 | |
428870ff | 3762 | return (err); |
34dc7c2f BB |
3763 | } |
3764 | ||
3765 | /* | |
46ba1e59 | 3766 | * fsname is name of dataset to rollback (to most recent snapshot) |
34dc7c2f | 3767 | * |
8ca78ab0 | 3768 | * innvl may contain name of expected target snapshot |
46ba1e59 MA |
3769 | * |
3770 | * outnvl: "target" -> name of most recent snapshot | |
3771 | * } | |
34dc7c2f | 3772 | */ |
46ba1e59 | 3773 | /* ARGSUSED */ |
34dc7c2f | 3774 | static int |
8ca78ab0 | 3775 | zfs_ioc_rollback(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3776 | { |
0037b49e | 3777 | zfsvfs_t *zfsvfs; |
040dab99 | 3778 | zvol_state_t *zv; |
8ca78ab0 | 3779 | char *target = NULL; |
13fe0198 | 3780 | int error; |
34dc7c2f | 3781 | |
8ca78ab0 AG |
3782 | (void) nvlist_lookup_string(innvl, "target", &target); |
3783 | if (target != NULL) { | |
13342832 | 3784 | const char *cp = strchr(target, '@'); |
8ca78ab0 | 3785 | |
13342832 AG |
3786 | /* |
3787 | * The snap name must contain an @, and the part after it must | |
3788 | * contain only valid characters. | |
3789 | */ | |
3790 | if (cp == NULL || | |
3791 | zfs_component_namecheck(cp + 1, NULL, NULL) != 0) | |
8ca78ab0 AG |
3792 | return (SET_ERROR(EINVAL)); |
3793 | } | |
3794 | ||
f298b24d | 3795 | if (getzfsvfs(fsname, &zfsvfs) == 0) { |
ec923db2 GM |
3796 | dsl_dataset_t *ds; |
3797 | ||
0037b49e BB |
3798 | ds = dmu_objset_ds(zfsvfs->z_os); |
3799 | error = zfs_suspend_fs(zfsvfs); | |
34dc7c2f BB |
3800 | if (error == 0) { |
3801 | int resume_err; | |
3802 | ||
8ca78ab0 AG |
3803 | error = dsl_dataset_rollback(fsname, target, zfsvfs, |
3804 | outnvl); | |
0037b49e | 3805 | resume_err = zfs_resume_fs(zfsvfs, ds); |
34dc7c2f | 3806 | error = error ? error : resume_err; |
34dc7c2f | 3807 | } |
0037b49e | 3808 | deactivate_super(zfsvfs->z_sb); |
040dab99 | 3809 | } else if ((zv = zvol_suspend(fsname)) != NULL) { |
8ca78ab0 AG |
3810 | error = dsl_dataset_rollback(fsname, target, zvol_tag(zv), |
3811 | outnvl); | |
040dab99 | 3812 | zvol_resume(zv); |
34dc7c2f | 3813 | } else { |
8ca78ab0 | 3814 | error = dsl_dataset_rollback(fsname, target, NULL, outnvl); |
34dc7c2f | 3815 | } |
13fe0198 MA |
3816 | return (error); |
3817 | } | |
34dc7c2f | 3818 | |
13fe0198 MA |
3819 | static int |
3820 | recursive_unmount(const char *fsname, void *arg) | |
3821 | { | |
3822 | const char *snapname = arg; | |
3823 | char *fullname; | |
428870ff | 3824 | |
13fe0198 | 3825 | fullname = kmem_asprintf("%s@%s", fsname, snapname); |
8d103d88 | 3826 | zfs_unmount_snap(fullname); |
13fe0198 | 3827 | strfree(fullname); |
00fcdee1 | 3828 | |
8d103d88 | 3829 | return (0); |
34dc7c2f BB |
3830 | } |
3831 | ||
3832 | /* | |
3833 | * inputs: | |
3834 | * zc_name old name of dataset | |
3835 | * zc_value new name of dataset | |
3836 | * zc_cookie recursive flag (only valid for snapshots) | |
3837 | * | |
3838 | * outputs: none | |
3839 | */ | |
3840 | static int | |
3841 | zfs_ioc_rename(zfs_cmd_t *zc) | |
3842 | { | |
3843 | boolean_t recursive = zc->zc_cookie & 1; | |
13fe0198 | 3844 | char *at; |
34dc7c2f | 3845 | |
650258d7 | 3846 | /* "zfs rename" from and to ...%recv datasets should both fail */ |
3847 | zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; | |
34dc7c2f | 3848 | zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; |
650258d7 | 3849 | if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0 || |
3850 | dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
3851 | strchr(zc->zc_name, '%') || strchr(zc->zc_value, '%')) | |
2e528b49 | 3852 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3853 | |
13fe0198 MA |
3854 | at = strchr(zc->zc_name, '@'); |
3855 | if (at != NULL) { | |
3856 | /* snaps must be in same fs */ | |
9554185d SH |
3857 | int error; |
3858 | ||
13fe0198 | 3859 | if (strncmp(zc->zc_name, zc->zc_value, at - zc->zc_name + 1)) |
2e528b49 | 3860 | return (SET_ERROR(EXDEV)); |
13fe0198 MA |
3861 | *at = '\0'; |
3862 | if (zc->zc_objset_type == DMU_OST_ZFS) { | |
9554185d | 3863 | error = dmu_objset_find(zc->zc_name, |
13fe0198 MA |
3864 | recursive_unmount, at + 1, |
3865 | recursive ? DS_FIND_CHILDREN : 0); | |
9554185d SH |
3866 | if (error != 0) { |
3867 | *at = '@'; | |
13fe0198 | 3868 | return (error); |
9554185d | 3869 | } |
13fe0198 | 3870 | } |
9554185d SH |
3871 | error = dsl_dataset_rename_snapshot(zc->zc_name, |
3872 | at + 1, strchr(zc->zc_value, '@') + 1, recursive); | |
3873 | *at = '@'; | |
3874 | ||
3875 | return (error); | |
13fe0198 | 3876 | } else { |
ba6a2402 | 3877 | return (dsl_dir_rename(zc->zc_name, zc->zc_value)); |
95c73795 | 3878 | } |
34dc7c2f BB |
3879 | } |
3880 | ||
428870ff BB |
3881 | static int |
3882 | zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr) | |
3883 | { | |
3884 | const char *propname = nvpair_name(pair); | |
3885 | boolean_t issnap = (strchr(dsname, '@') != NULL); | |
3886 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
3887 | uint64_t intval; | |
3888 | int err; | |
3889 | ||
3890 | if (prop == ZPROP_INVAL) { | |
3891 | if (zfs_prop_user(propname)) { | |
c65aa5b2 BB |
3892 | if ((err = zfs_secpolicy_write_perms(dsname, |
3893 | ZFS_DELEG_PERM_USERPROP, cr))) | |
428870ff BB |
3894 | return (err); |
3895 | return (0); | |
3896 | } | |
3897 | ||
3898 | if (!issnap && zfs_prop_userquota(propname)) { | |
3899 | const char *perm = NULL; | |
3900 | const char *uq_prefix = | |
3901 | zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA]; | |
3902 | const char *gq_prefix = | |
3903 | zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA]; | |
1de321e6 JX |
3904 | const char *uiq_prefix = |
3905 | zfs_userquota_prop_prefixes[ZFS_PROP_USEROBJQUOTA]; | |
3906 | const char *giq_prefix = | |
3907 | zfs_userquota_prop_prefixes[ZFS_PROP_GROUPOBJQUOTA]; | |
9c5167d1 NF |
3908 | const char *pq_prefix = |
3909 | zfs_userquota_prop_prefixes[ZFS_PROP_PROJECTQUOTA]; | |
3910 | const char *piq_prefix = zfs_userquota_prop_prefixes[\ | |
3911 | ZFS_PROP_PROJECTOBJQUOTA]; | |
428870ff BB |
3912 | |
3913 | if (strncmp(propname, uq_prefix, | |
3914 | strlen(uq_prefix)) == 0) { | |
3915 | perm = ZFS_DELEG_PERM_USERQUOTA; | |
1de321e6 JX |
3916 | } else if (strncmp(propname, uiq_prefix, |
3917 | strlen(uiq_prefix)) == 0) { | |
3918 | perm = ZFS_DELEG_PERM_USEROBJQUOTA; | |
428870ff BB |
3919 | } else if (strncmp(propname, gq_prefix, |
3920 | strlen(gq_prefix)) == 0) { | |
3921 | perm = ZFS_DELEG_PERM_GROUPQUOTA; | |
1de321e6 JX |
3922 | } else if (strncmp(propname, giq_prefix, |
3923 | strlen(giq_prefix)) == 0) { | |
3924 | perm = ZFS_DELEG_PERM_GROUPOBJQUOTA; | |
9c5167d1 NF |
3925 | } else if (strncmp(propname, pq_prefix, |
3926 | strlen(pq_prefix)) == 0) { | |
3927 | perm = ZFS_DELEG_PERM_PROJECTQUOTA; | |
3928 | } else if (strncmp(propname, piq_prefix, | |
3929 | strlen(piq_prefix)) == 0) { | |
3930 | perm = ZFS_DELEG_PERM_PROJECTOBJQUOTA; | |
428870ff | 3931 | } else { |
9c5167d1 | 3932 | /* {USER|GROUP|PROJECT}USED are read-only */ |
2e528b49 | 3933 | return (SET_ERROR(EINVAL)); |
428870ff BB |
3934 | } |
3935 | ||
c65aa5b2 | 3936 | if ((err = zfs_secpolicy_write_perms(dsname, perm, cr))) |
428870ff BB |
3937 | return (err); |
3938 | return (0); | |
3939 | } | |
3940 | ||
2e528b49 | 3941 | return (SET_ERROR(EINVAL)); |
428870ff BB |
3942 | } |
3943 | ||
3944 | if (issnap) | |
2e528b49 | 3945 | return (SET_ERROR(EINVAL)); |
428870ff BB |
3946 | |
3947 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
3948 | /* | |
3949 | * dsl_prop_get_all_impl() returns properties in this | |
3950 | * format. | |
3951 | */ | |
3952 | nvlist_t *attrs; | |
3953 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
3954 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3955 | &pair) == 0); | |
3956 | } | |
3957 | ||
3958 | /* | |
3959 | * Check that this value is valid for this pool version | |
3960 | */ | |
3961 | switch (prop) { | |
3962 | case ZFS_PROP_COMPRESSION: | |
3963 | /* | |
3964 | * If the user specified gzip compression, make sure | |
3965 | * the SPA supports it. We ignore any errors here since | |
3966 | * we'll catch them later. | |
3967 | */ | |
f1512ee6 | 3968 | if (nvpair_value_uint64(pair, &intval) == 0) { |
428870ff BB |
3969 | if (intval >= ZIO_COMPRESS_GZIP_1 && |
3970 | intval <= ZIO_COMPRESS_GZIP_9 && | |
3971 | zfs_earlier_version(dsname, | |
3972 | SPA_VERSION_GZIP_COMPRESSION)) { | |
2e528b49 | 3973 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3974 | } |
3975 | ||
3976 | if (intval == ZIO_COMPRESS_ZLE && | |
3977 | zfs_earlier_version(dsname, | |
3978 | SPA_VERSION_ZLE_COMPRESSION)) | |
2e528b49 | 3979 | return (SET_ERROR(ENOTSUP)); |
428870ff | 3980 | |
9759c60f | 3981 | if (intval == ZIO_COMPRESS_LZ4) { |
9759c60f ED |
3982 | spa_t *spa; |
3983 | ||
3984 | if ((err = spa_open(dsname, &spa, FTAG)) != 0) | |
3985 | return (err); | |
3986 | ||
fa86b5db MA |
3987 | if (!spa_feature_is_enabled(spa, |
3988 | SPA_FEATURE_LZ4_COMPRESS)) { | |
9759c60f | 3989 | spa_close(spa, FTAG); |
2e528b49 | 3990 | return (SET_ERROR(ENOTSUP)); |
9759c60f ED |
3991 | } |
3992 | spa_close(spa, FTAG); | |
3993 | } | |
3994 | ||
428870ff BB |
3995 | /* |
3996 | * If this is a bootable dataset then | |
3997 | * verify that the compression algorithm | |
3998 | * is supported for booting. We must return | |
3999 | * something other than ENOTSUP since it | |
4000 | * implies a downrev pool version. | |
4001 | */ | |
4002 | if (zfs_is_bootfs(dsname) && | |
4003 | !BOOTFS_COMPRESS_VALID(intval)) { | |
2e528b49 | 4004 | return (SET_ERROR(ERANGE)); |
428870ff BB |
4005 | } |
4006 | } | |
4007 | break; | |
4008 | ||
4009 | case ZFS_PROP_COPIES: | |
4010 | if (zfs_earlier_version(dsname, SPA_VERSION_DITTO_BLOCKS)) | |
2e528b49 | 4011 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
4012 | break; |
4013 | ||
4cb7b9c5 | 4014 | case ZFS_PROP_VOLBLOCKSIZE: |
f1512ee6 MA |
4015 | case ZFS_PROP_RECORDSIZE: |
4016 | /* Record sizes above 128k need the feature to be enabled */ | |
4017 | if (nvpair_value_uint64(pair, &intval) == 0 && | |
4018 | intval > SPA_OLD_MAXBLOCKSIZE) { | |
4019 | spa_t *spa; | |
4020 | ||
f1512ee6 MA |
4021 | /* |
4022 | * We don't allow setting the property above 1MB, | |
4023 | * unless the tunable has been changed. | |
4024 | */ | |
4025 | if (intval > zfs_max_recordsize || | |
4026 | intval > SPA_MAXBLOCKSIZE) | |
4b2a3e0c | 4027 | return (SET_ERROR(ERANGE)); |
f1512ee6 MA |
4028 | |
4029 | if ((err = spa_open(dsname, &spa, FTAG)) != 0) | |
4030 | return (err); | |
4031 | ||
4032 | if (!spa_feature_is_enabled(spa, | |
4033 | SPA_FEATURE_LARGE_BLOCKS)) { | |
4034 | spa_close(spa, FTAG); | |
4035 | return (SET_ERROR(ENOTSUP)); | |
4036 | } | |
4037 | spa_close(spa, FTAG); | |
4038 | } | |
4039 | break; | |
4040 | ||
50c957f7 NB |
4041 | case ZFS_PROP_DNODESIZE: |
4042 | /* Dnode sizes above 512 need the feature to be enabled */ | |
4043 | if (nvpair_value_uint64(pair, &intval) == 0 && | |
4044 | intval != ZFS_DNSIZE_LEGACY) { | |
4045 | spa_t *spa; | |
4046 | ||
4047 | /* | |
4048 | * If this is a bootable dataset then | |
4049 | * we don't allow large (>512B) dnodes, | |
4050 | * because GRUB doesn't support them. | |
4051 | */ | |
4052 | if (zfs_is_bootfs(dsname) && | |
02730c33 | 4053 | intval != ZFS_DNSIZE_LEGACY) { |
50c957f7 NB |
4054 | return (SET_ERROR(EDOM)); |
4055 | } | |
4056 | ||
4057 | if ((err = spa_open(dsname, &spa, FTAG)) != 0) | |
4058 | return (err); | |
4059 | ||
4060 | if (!spa_feature_is_enabled(spa, | |
4061 | SPA_FEATURE_LARGE_DNODE)) { | |
4062 | spa_close(spa, FTAG); | |
4063 | return (SET_ERROR(ENOTSUP)); | |
4064 | } | |
4065 | spa_close(spa, FTAG); | |
4066 | } | |
4067 | break; | |
4068 | ||
428870ff BB |
4069 | case ZFS_PROP_SHARESMB: |
4070 | if (zpl_earlier_version(dsname, ZPL_VERSION_FUID)) | |
2e528b49 | 4071 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
4072 | break; |
4073 | ||
4074 | case ZFS_PROP_ACLINHERIT: | |
4075 | if (nvpair_type(pair) == DATA_TYPE_UINT64 && | |
4076 | nvpair_value_uint64(pair, &intval) == 0) { | |
4077 | if (intval == ZFS_ACL_PASSTHROUGH_X && | |
4078 | zfs_earlier_version(dsname, | |
4079 | SPA_VERSION_PASSTHROUGH_X)) | |
2e528b49 | 4080 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
4081 | } |
4082 | break; | |
3c67d83a TH |
4083 | case ZFS_PROP_CHECKSUM: |
4084 | case ZFS_PROP_DEDUP: | |
4085 | { | |
4086 | spa_feature_t feature; | |
4087 | spa_t *spa; | |
4088 | uint64_t intval; | |
4089 | int err; | |
4090 | ||
4091 | /* dedup feature version checks */ | |
4092 | if (prop == ZFS_PROP_DEDUP && | |
4093 | zfs_earlier_version(dsname, SPA_VERSION_DEDUP)) | |
4094 | return (SET_ERROR(ENOTSUP)); | |
4095 | ||
4096 | if (nvpair_value_uint64(pair, &intval) != 0) | |
4097 | return (SET_ERROR(EINVAL)); | |
4098 | ||
4099 | /* check prop value is enabled in features */ | |
4a2e9a17 | 4100 | feature = zio_checksum_to_feature(intval & ZIO_CHECKSUM_MASK); |
3c67d83a TH |
4101 | if (feature == SPA_FEATURE_NONE) |
4102 | break; | |
4103 | ||
4104 | if ((err = spa_open(dsname, &spa, FTAG)) != 0) | |
4105 | return (err); | |
4106 | /* | |
4107 | * Salted checksums are not supported on root pools. | |
4108 | */ | |
4109 | if (spa_bootfs(spa) != 0 && | |
4110 | intval < ZIO_CHECKSUM_FUNCTIONS && | |
4111 | (zio_checksum_table[intval].ci_flags & | |
4112 | ZCHECKSUM_FLAG_SALTED)) { | |
4113 | spa_close(spa, FTAG); | |
4114 | return (SET_ERROR(ERANGE)); | |
4115 | } | |
4116 | if (!spa_feature_is_enabled(spa, feature)) { | |
4117 | spa_close(spa, FTAG); | |
4118 | return (SET_ERROR(ENOTSUP)); | |
4119 | } | |
4120 | spa_close(spa, FTAG); | |
4121 | break; | |
4122 | } | |
4123 | ||
e75c13c3 BB |
4124 | default: |
4125 | break; | |
428870ff BB |
4126 | } |
4127 | ||
4128 | return (zfs_secpolicy_setprop(dsname, prop, pair, CRED())); | |
4129 | } | |
4130 | ||
4131 | /* | |
4132 | * Removes properties from the given props list that fail permission checks | |
4133 | * needed to clear them and to restore them in case of a receive error. For each | |
4134 | * property, make sure we have both set and inherit permissions. | |
4135 | * | |
4136 | * Returns the first error encountered if any permission checks fail. If the | |
4137 | * caller provides a non-NULL errlist, it also gives the complete list of names | |
4138 | * of all the properties that failed a permission check along with the | |
4139 | * corresponding error numbers. The caller is responsible for freeing the | |
4140 | * returned errlist. | |
4141 | * | |
4142 | * If every property checks out successfully, zero is returned and the list | |
4143 | * pointed at by errlist is NULL. | |
4144 | */ | |
4145 | static int | |
4146 | zfs_check_clearable(char *dataset, nvlist_t *props, nvlist_t **errlist) | |
b128c09f BB |
4147 | { |
4148 | zfs_cmd_t *zc; | |
428870ff BB |
4149 | nvpair_t *pair, *next_pair; |
4150 | nvlist_t *errors; | |
4151 | int err, rv = 0; | |
b128c09f BB |
4152 | |
4153 | if (props == NULL) | |
428870ff BB |
4154 | return (0); |
4155 | ||
4156 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
4157 | ||
efcd79a8 | 4158 | zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP); |
680eada9 | 4159 | (void) strlcpy(zc->zc_name, dataset, sizeof (zc->zc_name)); |
428870ff BB |
4160 | pair = nvlist_next_nvpair(props, NULL); |
4161 | while (pair != NULL) { | |
4162 | next_pair = nvlist_next_nvpair(props, pair); | |
4163 | ||
680eada9 | 4164 | (void) strlcpy(zc->zc_value, nvpair_name(pair), |
4165 | sizeof (zc->zc_value)); | |
428870ff | 4166 | if ((err = zfs_check_settable(dataset, pair, CRED())) != 0 || |
6f1ffb06 | 4167 | (err = zfs_secpolicy_inherit_prop(zc, NULL, CRED())) != 0) { |
428870ff BB |
4168 | VERIFY(nvlist_remove_nvpair(props, pair) == 0); |
4169 | VERIFY(nvlist_add_int32(errors, | |
4170 | zc->zc_value, err) == 0); | |
4171 | } | |
4172 | pair = next_pair; | |
b128c09f BB |
4173 | } |
4174 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
428870ff BB |
4175 | |
4176 | if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) { | |
4177 | nvlist_free(errors); | |
4178 | errors = NULL; | |
4179 | } else { | |
4180 | VERIFY(nvpair_value_int32(pair, &rv) == 0); | |
4181 | } | |
4182 | ||
4183 | if (errlist == NULL) | |
4184 | nvlist_free(errors); | |
4185 | else | |
4186 | *errlist = errors; | |
4187 | ||
4188 | return (rv); | |
4189 | } | |
4190 | ||
4191 | static boolean_t | |
4192 | propval_equals(nvpair_t *p1, nvpair_t *p2) | |
4193 | { | |
4194 | if (nvpair_type(p1) == DATA_TYPE_NVLIST) { | |
4195 | /* dsl_prop_get_all_impl() format */ | |
4196 | nvlist_t *attrs; | |
4197 | VERIFY(nvpair_value_nvlist(p1, &attrs) == 0); | |
4198 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
4199 | &p1) == 0); | |
4200 | } | |
4201 | ||
4202 | if (nvpair_type(p2) == DATA_TYPE_NVLIST) { | |
4203 | nvlist_t *attrs; | |
4204 | VERIFY(nvpair_value_nvlist(p2, &attrs) == 0); | |
4205 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
4206 | &p2) == 0); | |
4207 | } | |
4208 | ||
4209 | if (nvpair_type(p1) != nvpair_type(p2)) | |
4210 | return (B_FALSE); | |
4211 | ||
4212 | if (nvpair_type(p1) == DATA_TYPE_STRING) { | |
4213 | char *valstr1, *valstr2; | |
4214 | ||
4215 | VERIFY(nvpair_value_string(p1, (char **)&valstr1) == 0); | |
4216 | VERIFY(nvpair_value_string(p2, (char **)&valstr2) == 0); | |
4217 | return (strcmp(valstr1, valstr2) == 0); | |
4218 | } else { | |
4219 | uint64_t intval1, intval2; | |
4220 | ||
4221 | VERIFY(nvpair_value_uint64(p1, &intval1) == 0); | |
4222 | VERIFY(nvpair_value_uint64(p2, &intval2) == 0); | |
4223 | return (intval1 == intval2); | |
4224 | } | |
b128c09f BB |
4225 | } |
4226 | ||
428870ff BB |
4227 | /* |
4228 | * Remove properties from props if they are not going to change (as determined | |
4229 | * by comparison with origprops). Remove them from origprops as well, since we | |
4230 | * do not need to clear or restore properties that won't change. | |
4231 | */ | |
4232 | static void | |
4233 | props_reduce(nvlist_t *props, nvlist_t *origprops) | |
4234 | { | |
4235 | nvpair_t *pair, *next_pair; | |
4236 | ||
4237 | if (origprops == NULL) | |
4238 | return; /* all props need to be received */ | |
4239 | ||
4240 | pair = nvlist_next_nvpair(props, NULL); | |
4241 | while (pair != NULL) { | |
4242 | const char *propname = nvpair_name(pair); | |
4243 | nvpair_t *match; | |
4244 | ||
4245 | next_pair = nvlist_next_nvpair(props, pair); | |
4246 | ||
4247 | if ((nvlist_lookup_nvpair(origprops, propname, | |
4248 | &match) != 0) || !propval_equals(pair, match)) | |
4249 | goto next; /* need to set received value */ | |
4250 | ||
4251 | /* don't clear the existing received value */ | |
4252 | (void) nvlist_remove_nvpair(origprops, match); | |
4253 | /* don't bother receiving the property */ | |
4254 | (void) nvlist_remove_nvpair(props, pair); | |
4255 | next: | |
4256 | pair = next_pair; | |
4257 | } | |
4258 | } | |
4259 | ||
671c9354 DM |
4260 | /* |
4261 | * Extract properties that cannot be set PRIOR to the receipt of a dataset. | |
4262 | * For example, refquota cannot be set until after the receipt of a dataset, | |
4263 | * because in replication streams, an older/earlier snapshot may exceed the | |
4264 | * refquota. We want to receive the older/earlier snapshot, but setting | |
4265 | * refquota pre-receipt will set the dsl's ACTUAL quota, which will prevent | |
4266 | * the older/earlier snapshot from being received (with EDQUOT). | |
4267 | * | |
4268 | * The ZFS test "zfs_receive_011_pos" demonstrates such a scenario. | |
4269 | * | |
4270 | * libzfs will need to be judicious handling errors encountered by props | |
4271 | * extracted by this function. | |
4272 | */ | |
4273 | static nvlist_t * | |
4274 | extract_delay_props(nvlist_t *props) | |
4275 | { | |
4276 | nvlist_t *delayprops; | |
4277 | nvpair_t *nvp, *tmp; | |
b5256303 TC |
4278 | static const zfs_prop_t delayable[] = { |
4279 | ZFS_PROP_REFQUOTA, | |
4280 | ZFS_PROP_KEYLOCATION, | |
4281 | 0 | |
4282 | }; | |
671c9354 DM |
4283 | int i; |
4284 | ||
4285 | VERIFY(nvlist_alloc(&delayprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
4286 | ||
4287 | for (nvp = nvlist_next_nvpair(props, NULL); nvp != NULL; | |
4288 | nvp = nvlist_next_nvpair(props, nvp)) { | |
4289 | /* | |
4290 | * strcmp() is safe because zfs_prop_to_name() always returns | |
4291 | * a bounded string. | |
4292 | */ | |
4293 | for (i = 0; delayable[i] != 0; i++) { | |
4294 | if (strcmp(zfs_prop_to_name(delayable[i]), | |
4295 | nvpair_name(nvp)) == 0) { | |
4296 | break; | |
4297 | } | |
4298 | } | |
4299 | if (delayable[i] != 0) { | |
4300 | tmp = nvlist_prev_nvpair(props, nvp); | |
4301 | VERIFY(nvlist_add_nvpair(delayprops, nvp) == 0); | |
4302 | VERIFY(nvlist_remove_nvpair(props, nvp) == 0); | |
4303 | nvp = tmp; | |
4304 | } | |
4305 | } | |
4306 | ||
4307 | if (nvlist_empty(delayprops)) { | |
4308 | nvlist_free(delayprops); | |
4309 | delayprops = NULL; | |
4310 | } | |
4311 | return (delayprops); | |
4312 | } | |
4313 | ||
428870ff BB |
4314 | #ifdef DEBUG |
4315 | static boolean_t zfs_ioc_recv_inject_err; | |
4316 | #endif | |
4317 | ||
34dc7c2f | 4318 | /* |
1bf3bf0e GN |
4319 | * nvlist 'errors' is always allocated. It will contain descriptions of |
4320 | * encountered errors, if any. It's the callers responsibility to free. | |
34dc7c2f BB |
4321 | */ |
4322 | static int | |
a3eeab2d | 4323 | zfs_ioc_recv_impl(char *tofs, char *tosnap, char *origin, nvlist_t *recvprops, |
4324 | nvlist_t *localprops, boolean_t force, boolean_t resumable, int input_fd, | |
43e52edd BB |
4325 | dmu_replay_record_t *begin_record, int cleanup_fd, uint64_t *read_bytes, |
4326 | uint64_t *errflags, uint64_t *action_handle, nvlist_t **errors) | |
34dc7c2f | 4327 | { |
34dc7c2f | 4328 | dmu_recv_cookie_t drc; |
428870ff BB |
4329 | int error = 0; |
4330 | int props_error = 0; | |
34dc7c2f | 4331 | offset_t off; |
671c9354 | 4332 | nvlist_t *delayprops = NULL; /* sent properties applied post-receive */ |
43e52edd | 4333 | nvlist_t *origprops = NULL; /* existing properties */ |
a3eeab2d | 4334 | nvlist_t *origrecvd = NULL; /* existing received properties */ |
428870ff | 4335 | boolean_t first_recvd_props = B_FALSE; |
43e52edd | 4336 | file_t *input_fp; |
34dc7c2f | 4337 | |
1bf3bf0e GN |
4338 | *read_bytes = 0; |
4339 | *errflags = 0; | |
4340 | *errors = fnvlist_alloc(); | |
4341 | ||
43e52edd BB |
4342 | input_fp = getf(input_fd); |
4343 | if (input_fp == NULL) | |
2e528b49 | 4344 | return (SET_ERROR(EBADF)); |
13fe0198 MA |
4345 | |
4346 | error = dmu_recv_begin(tofs, tosnap, | |
43e52edd | 4347 | begin_record, force, resumable, origin, &drc); |
13fe0198 MA |
4348 | if (error != 0) |
4349 | goto out; | |
4350 | ||
4351 | /* | |
4352 | * Set properties before we receive the stream so that they are applied | |
4353 | * to the new data. Note that we must call dmu_recv_stream() if | |
4354 | * dmu_recv_begin() succeeds. | |
4355 | */ | |
a3eeab2d | 4356 | if (recvprops != NULL && !drc.drc_newfs) { |
13fe0198 MA |
4357 | if (spa_version(dsl_dataset_get_spa(drc.drc_ds)) >= |
4358 | SPA_VERSION_RECVD_PROPS && | |
4359 | !dsl_prop_get_hasrecvd(tofs)) | |
428870ff | 4360 | first_recvd_props = B_TRUE; |
428870ff | 4361 | |
b128c09f | 4362 | /* |
428870ff BB |
4363 | * If new received properties are supplied, they are to |
4364 | * completely replace the existing received properties, so stash | |
4365 | * away the existing ones. | |
b128c09f | 4366 | */ |
a3eeab2d | 4367 | if (dsl_prop_get_received(tofs, &origrecvd) == 0) { |
428870ff BB |
4368 | nvlist_t *errlist = NULL; |
4369 | /* | |
4370 | * Don't bother writing a property if its value won't | |
4371 | * change (and avoid the unnecessary security checks). | |
4372 | * | |
4373 | * The first receive after SPA_VERSION_RECVD_PROPS is a | |
4374 | * special case where we blow away all local properties | |
4375 | * regardless. | |
4376 | */ | |
4377 | if (!first_recvd_props) | |
a3eeab2d | 4378 | props_reduce(recvprops, origrecvd); |
4379 | if (zfs_check_clearable(tofs, origrecvd, &errlist) != 0) | |
43e52edd | 4380 | (void) nvlist_merge(*errors, errlist, 0); |
428870ff | 4381 | nvlist_free(errlist); |
b128c09f | 4382 | |
a3eeab2d | 4383 | if (clear_received_props(tofs, origrecvd, |
4384 | first_recvd_props ? NULL : recvprops) != 0) | |
4385 | *errflags |= ZPROP_ERR_NOCLEAR; | |
4386 | } else { | |
4387 | *errflags |= ZPROP_ERR_NOCLEAR; | |
4388 | } | |
4389 | } | |
4390 | ||
4391 | /* | |
4392 | * Stash away existing properties so we can restore them on error unless | |
4393 | * we're doing the first receive after SPA_VERSION_RECVD_PROPS, in which | |
4394 | * case "origrecvd" will take care of that. | |
4395 | */ | |
4396 | if (localprops != NULL && !drc.drc_newfs && !first_recvd_props) { | |
4397 | objset_t *os; | |
4398 | if (dmu_objset_hold(tofs, FTAG, &os) == 0) { | |
4399 | if (dsl_prop_get_all(os, &origprops) != 0) { | |
43e52edd | 4400 | *errflags |= ZPROP_ERR_NOCLEAR; |
a3eeab2d | 4401 | } |
4402 | dmu_objset_rele(os, FTAG); | |
13fe0198 | 4403 | } else { |
43e52edd | 4404 | *errflags |= ZPROP_ERR_NOCLEAR; |
428870ff | 4405 | } |
13fe0198 MA |
4406 | } |
4407 | ||
a3eeab2d | 4408 | if (recvprops != NULL) { |
13fe0198 | 4409 | props_error = dsl_prop_set_hasrecvd(tofs); |
428870ff | 4410 | |
13fe0198 | 4411 | if (props_error == 0) { |
a3eeab2d | 4412 | delayprops = extract_delay_props(recvprops); |
13fe0198 | 4413 | (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED, |
a3eeab2d | 4414 | recvprops, *errors); |
13fe0198 | 4415 | } |
428870ff BB |
4416 | } |
4417 | ||
a3eeab2d | 4418 | if (localprops != NULL) { |
4419 | nvlist_t *oprops = fnvlist_alloc(); | |
4420 | nvlist_t *xprops = fnvlist_alloc(); | |
4421 | nvpair_t *nvp = NULL; | |
4422 | ||
4423 | while ((nvp = nvlist_next_nvpair(localprops, nvp)) != NULL) { | |
4424 | if (nvpair_type(nvp) == DATA_TYPE_BOOLEAN) { | |
4425 | /* -x property */ | |
4426 | const char *name = nvpair_name(nvp); | |
4427 | zfs_prop_t prop = zfs_name_to_prop(name); | |
4428 | if (prop != ZPROP_INVAL) { | |
4429 | if (!zfs_prop_inheritable(prop)) | |
4430 | continue; | |
4431 | } else if (!zfs_prop_user(name)) | |
4432 | continue; | |
4433 | fnvlist_add_boolean(xprops, name); | |
4434 | } else { | |
4435 | /* -o property=value */ | |
4436 | fnvlist_add_nvpair(oprops, nvp); | |
4437 | } | |
4438 | } | |
4439 | (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_LOCAL, | |
4440 | oprops, *errors); | |
4441 | (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_INHERITED, | |
4442 | xprops, *errors); | |
4443 | ||
4444 | nvlist_free(oprops); | |
4445 | nvlist_free(xprops); | |
4446 | } | |
4447 | ||
43e52edd BB |
4448 | off = input_fp->f_offset; |
4449 | error = dmu_recv_stream(&drc, input_fp->f_vnode, &off, cleanup_fd, | |
4450 | action_handle); | |
34dc7c2f | 4451 | |
45d1cae3 | 4452 | if (error == 0) { |
0037b49e | 4453 | zfsvfs_t *zfsvfs = NULL; |
040dab99 | 4454 | zvol_state_t *zv = NULL; |
b128c09f | 4455 | |
f298b24d | 4456 | if (getzfsvfs(tofs, &zfsvfs) == 0) { |
45d1cae3 | 4457 | /* online recv */ |
ec923db2 | 4458 | dsl_dataset_t *ds; |
45d1cae3 | 4459 | int end_err; |
b128c09f | 4460 | |
0037b49e BB |
4461 | ds = dmu_objset_ds(zfsvfs->z_os); |
4462 | error = zfs_suspend_fs(zfsvfs); | |
45d1cae3 BB |
4463 | /* |
4464 | * If the suspend fails, then the recv_end will | |
4465 | * likely also fail, and clean up after itself. | |
4466 | */ | |
0037b49e | 4467 | end_err = dmu_recv_end(&drc, zfsvfs); |
428870ff | 4468 | if (error == 0) |
0037b49e | 4469 | error = zfs_resume_fs(zfsvfs, ds); |
45d1cae3 | 4470 | error = error ? error : end_err; |
0037b49e | 4471 | deactivate_super(zfsvfs->z_sb); |
040dab99 CC |
4472 | } else if ((zv = zvol_suspend(tofs)) != NULL) { |
4473 | error = dmu_recv_end(&drc, zvol_tag(zv)); | |
4474 | zvol_resume(zv); | |
b128c09f | 4475 | } else { |
831baf06 | 4476 | error = dmu_recv_end(&drc, NULL); |
34dc7c2f | 4477 | } |
671c9354 DM |
4478 | |
4479 | /* Set delayed properties now, after we're done receiving. */ | |
4480 | if (delayprops != NULL && error == 0) { | |
4481 | (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED, | |
43e52edd | 4482 | delayprops, *errors); |
671c9354 DM |
4483 | } |
4484 | } | |
4485 | ||
4486 | if (delayprops != NULL) { | |
4487 | /* | |
4488 | * Merge delayed props back in with initial props, in case | |
4489 | * we're DEBUG and zfs_ioc_recv_inject_err is set (which means | |
4490 | * we have to make sure clear_received_props() includes | |
4491 | * the delayed properties). | |
4492 | * | |
4493 | * Since zfs_ioc_recv_inject_err is only in DEBUG kernels, | |
4494 | * using ASSERT() will be just like a VERIFY. | |
4495 | */ | |
a3eeab2d | 4496 | ASSERT(nvlist_merge(recvprops, delayprops, 0) == 0); |
671c9354 DM |
4497 | nvlist_free(delayprops); |
4498 | } | |
4499 | ||
34dc7c2f | 4500 | |
43e52edd BB |
4501 | *read_bytes = off - input_fp->f_offset; |
4502 | if (VOP_SEEK(input_fp->f_vnode, input_fp->f_offset, &off, NULL) == 0) | |
02730c33 | 4503 | input_fp->f_offset = off; |
34dc7c2f | 4504 | |
428870ff BB |
4505 | #ifdef DEBUG |
4506 | if (zfs_ioc_recv_inject_err) { | |
4507 | zfs_ioc_recv_inject_err = B_FALSE; | |
4508 | error = 1; | |
4509 | } | |
4510 | #endif | |
ba6a2402 | 4511 | |
b128c09f BB |
4512 | /* |
4513 | * On error, restore the original props. | |
4514 | */ | |
a3eeab2d | 4515 | if (error != 0 && recvprops != NULL && !drc.drc_newfs) { |
4516 | if (clear_received_props(tofs, recvprops, NULL) != 0) { | |
13fe0198 MA |
4517 | /* |
4518 | * We failed to clear the received properties. | |
4519 | * Since we may have left a $recvd value on the | |
4520 | * system, we can't clear the $hasrecvd flag. | |
4521 | */ | |
43e52edd | 4522 | *errflags |= ZPROP_ERR_NORESTORE; |
13fe0198 MA |
4523 | } else if (first_recvd_props) { |
4524 | dsl_prop_unset_hasrecvd(tofs); | |
428870ff BB |
4525 | } |
4526 | ||
a3eeab2d | 4527 | if (origrecvd == NULL && !drc.drc_newfs) { |
428870ff | 4528 | /* We failed to stash the original properties. */ |
43e52edd | 4529 | *errflags |= ZPROP_ERR_NORESTORE; |
428870ff BB |
4530 | } |
4531 | ||
4532 | /* | |
4533 | * dsl_props_set() will not convert RECEIVED to LOCAL on or | |
4534 | * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL | |
4e33ba4c | 4535 | * explicitly if we're restoring local properties cleared in the |
428870ff BB |
4536 | * first new-style receive. |
4537 | */ | |
a3eeab2d | 4538 | if (origrecvd != NULL && |
428870ff BB |
4539 | zfs_set_prop_nvlist(tofs, (first_recvd_props ? |
4540 | ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED), | |
a3eeab2d | 4541 | origrecvd, NULL) != 0) { |
428870ff BB |
4542 | /* |
4543 | * We stashed the original properties but failed to | |
4544 | * restore them. | |
4545 | */ | |
43e52edd | 4546 | *errflags |= ZPROP_ERR_NORESTORE; |
428870ff | 4547 | } |
b128c09f | 4548 | } |
a3eeab2d | 4549 | if (error != 0 && localprops != NULL && !drc.drc_newfs && |
4550 | !first_recvd_props) { | |
4551 | nvlist_t *setprops; | |
4552 | nvlist_t *inheritprops; | |
4553 | nvpair_t *nvp; | |
4554 | ||
4555 | if (origprops == NULL) { | |
4556 | /* We failed to stash the original properties. */ | |
4557 | *errflags |= ZPROP_ERR_NORESTORE; | |
4558 | goto out; | |
4559 | } | |
4560 | ||
4561 | /* Restore original props */ | |
4562 | setprops = fnvlist_alloc(); | |
4563 | inheritprops = fnvlist_alloc(); | |
4564 | nvp = NULL; | |
4565 | while ((nvp = nvlist_next_nvpair(localprops, nvp)) != NULL) { | |
4566 | const char *name = nvpair_name(nvp); | |
4567 | const char *source; | |
4568 | nvlist_t *attrs; | |
4569 | ||
4570 | if (!nvlist_exists(origprops, name)) { | |
4571 | /* | |
4572 | * Property was not present or was explicitly | |
4573 | * inherited before the receive, restore this. | |
4574 | */ | |
4575 | fnvlist_add_boolean(inheritprops, name); | |
4576 | continue; | |
4577 | } | |
4578 | attrs = fnvlist_lookup_nvlist(origprops, name); | |
4579 | source = fnvlist_lookup_string(attrs, ZPROP_SOURCE); | |
4580 | ||
4581 | /* Skip received properties */ | |
4582 | if (strcmp(source, ZPROP_SOURCE_VAL_RECVD) == 0) | |
4583 | continue; | |
4584 | ||
4585 | if (strcmp(source, tofs) == 0) { | |
4586 | /* Property was locally set */ | |
4587 | fnvlist_add_nvlist(setprops, name, attrs); | |
4588 | } else { | |
4589 | /* Property was implicitly inherited */ | |
4590 | fnvlist_add_boolean(inheritprops, name); | |
4591 | } | |
4592 | } | |
4593 | ||
4594 | if (zfs_set_prop_nvlist(tofs, ZPROP_SRC_LOCAL, setprops, | |
4595 | NULL) != 0) | |
4596 | *errflags |= ZPROP_ERR_NORESTORE; | |
4597 | if (zfs_set_prop_nvlist(tofs, ZPROP_SRC_INHERITED, inheritprops, | |
4598 | NULL) != 0) | |
4599 | *errflags |= ZPROP_ERR_NORESTORE; | |
4600 | ||
4601 | nvlist_free(setprops); | |
4602 | nvlist_free(inheritprops); | |
4603 | } | |
b128c09f | 4604 | out: |
43e52edd | 4605 | releasef(input_fd); |
a3eeab2d | 4606 | nvlist_free(origrecvd); |
b128c09f | 4607 | nvlist_free(origprops); |
428870ff BB |
4608 | |
4609 | if (error == 0) | |
4610 | error = props_error; | |
4611 | ||
34dc7c2f BB |
4612 | return (error); |
4613 | } | |
4614 | ||
43e52edd BB |
4615 | /* |
4616 | * inputs: | |
4617 | * zc_name name of containing filesystem (unused) | |
4618 | * zc_nvlist_src{_size} nvlist of properties to apply | |
a3eeab2d | 4619 | * zc_nvlist_conf{_size} nvlist of properties to exclude |
4620 | * (DATA_TYPE_BOOLEAN) and override (everything else) | |
43e52edd BB |
4621 | * zc_value name of snapshot to create |
4622 | * zc_string name of clone origin (if DRR_FLAG_CLONE) | |
4623 | * zc_cookie file descriptor to recv from | |
4624 | * zc_begin_record the BEGIN record of the stream (not byteswapped) | |
4625 | * zc_guid force flag | |
4626 | * zc_cleanup_fd cleanup-on-exit file descriptor | |
4627 | * zc_action_handle handle for this guid/ds mapping (or zero on first call) | |
4628 | * | |
4629 | * outputs: | |
4630 | * zc_cookie number of bytes read | |
4631 | * zc_obj zprop_errflags_t | |
4632 | * zc_action_handle handle for this guid/ds mapping | |
4633 | * zc_nvlist_dst{_size} error for each unapplied received property | |
4634 | */ | |
4635 | static int | |
4636 | zfs_ioc_recv(zfs_cmd_t *zc) | |
4637 | { | |
4638 | dmu_replay_record_t begin_record; | |
4639 | nvlist_t *errors = NULL; | |
a3eeab2d | 4640 | nvlist_t *recvdprops = NULL; |
4641 | nvlist_t *localprops = NULL; | |
43e52edd BB |
4642 | char *origin = NULL; |
4643 | char *tosnap; | |
eca7b760 | 4644 | char tofs[ZFS_MAX_DATASET_NAME_LEN]; |
43e52edd BB |
4645 | int error = 0; |
4646 | ||
4647 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
4648 | strchr(zc->zc_value, '@') == NULL || | |
4649 | strchr(zc->zc_value, '%')) | |
4650 | return (SET_ERROR(EINVAL)); | |
4651 | ||
30f3f2e1 | 4652 | (void) strlcpy(tofs, zc->zc_value, sizeof (tofs)); |
43e52edd BB |
4653 | tosnap = strchr(tofs, '@'); |
4654 | *tosnap++ = '\0'; | |
4655 | ||
4656 | if (zc->zc_nvlist_src != 0 && | |
4657 | (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
a3eeab2d | 4658 | zc->zc_iflags, &recvdprops)) != 0) |
4659 | return (error); | |
4660 | ||
4661 | if (zc->zc_nvlist_conf != 0 && | |
4662 | (error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
4663 | zc->zc_iflags, &localprops)) != 0) | |
43e52edd BB |
4664 | return (error); |
4665 | ||
4666 | if (zc->zc_string[0]) | |
4667 | origin = zc->zc_string; | |
4668 | ||
4669 | begin_record.drr_type = DRR_BEGIN; | |
4670 | begin_record.drr_payloadlen = 0; | |
4671 | begin_record.drr_u.drr_begin = zc->zc_begin_record; | |
4672 | ||
a3eeab2d | 4673 | error = zfs_ioc_recv_impl(tofs, tosnap, origin, recvdprops, localprops, |
4674 | zc->zc_guid, B_FALSE, zc->zc_cookie, &begin_record, | |
4675 | zc->zc_cleanup_fd, &zc->zc_cookie, &zc->zc_obj, | |
4676 | &zc->zc_action_handle, &errors); | |
4677 | nvlist_free(recvdprops); | |
4678 | nvlist_free(localprops); | |
43e52edd BB |
4679 | |
4680 | /* | |
4681 | * Now that all props, initial and delayed, are set, report the prop | |
4682 | * errors to the caller. | |
4683 | */ | |
4684 | if (zc->zc_nvlist_dst_size != 0 && errors != NULL && | |
4685 | (nvlist_smush(errors, zc->zc_nvlist_dst_size) != 0 || | |
4686 | put_nvlist(zc, errors) != 0)) { | |
4687 | /* | |
4688 | * Caller made zc->zc_nvlist_dst less than the minimum expected | |
4689 | * size or supplied an invalid address. | |
4690 | */ | |
4691 | error = SET_ERROR(EINVAL); | |
4692 | } | |
4693 | ||
4694 | nvlist_free(errors); | |
4695 | ||
4696 | return (error); | |
4697 | } | |
4698 | ||
4699 | /* | |
4700 | * innvl: { | |
4701 | * "snapname" -> full name of the snapshot to create | |
a3eeab2d | 4702 | * (optional) "props" -> received properties to set (nvlist) |
4703 | * (optional) "localprops" -> override and exclude properties (nvlist) | |
43e52edd BB |
4704 | * (optional) "origin" -> name of clone origin (DRR_FLAG_CLONE) |
4705 | * "begin_record" -> non-byteswapped dmu_replay_record_t | |
4706 | * "input_fd" -> file descriptor to read stream from (int32) | |
4707 | * (optional) "force" -> force flag (value ignored) | |
4708 | * (optional) "resumable" -> resumable flag (value ignored) | |
4709 | * (optional) "cleanup_fd" -> cleanup-on-exit file descriptor | |
4710 | * (optional) "action_handle" -> handle for this guid/ds mapping | |
4711 | * } | |
4712 | * | |
4713 | * outnvl: { | |
4714 | * "read_bytes" -> number of bytes read | |
4715 | * "error_flags" -> zprop_errflags_t | |
4716 | * "action_handle" -> handle for this guid/ds mapping | |
4717 | * "errors" -> error for each unapplied received property (nvlist) | |
4718 | * } | |
4719 | */ | |
4720 | static int | |
4721 | zfs_ioc_recv_new(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) | |
4722 | { | |
4723 | dmu_replay_record_t *begin_record; | |
4724 | uint_t begin_record_size; | |
4725 | nvlist_t *errors = NULL; | |
a3eeab2d | 4726 | nvlist_t *recvprops = NULL; |
4727 | nvlist_t *localprops = NULL; | |
43e52edd BB |
4728 | char *snapname = NULL; |
4729 | char *origin = NULL; | |
4730 | char *tosnap; | |
eca7b760 | 4731 | char tofs[ZFS_MAX_DATASET_NAME_LEN]; |
43e52edd BB |
4732 | boolean_t force; |
4733 | boolean_t resumable; | |
4734 | uint64_t action_handle = 0; | |
4735 | uint64_t read_bytes = 0; | |
4736 | uint64_t errflags = 0; | |
4737 | int input_fd = -1; | |
4738 | int cleanup_fd = -1; | |
4739 | int error; | |
4740 | ||
4741 | error = nvlist_lookup_string(innvl, "snapname", &snapname); | |
4742 | if (error != 0) | |
4743 | return (SET_ERROR(EINVAL)); | |
4744 | ||
4745 | if (dataset_namecheck(snapname, NULL, NULL) != 0 || | |
4746 | strchr(snapname, '@') == NULL || | |
4747 | strchr(snapname, '%')) | |
4748 | return (SET_ERROR(EINVAL)); | |
4749 | ||
4750 | (void) strcpy(tofs, snapname); | |
4751 | tosnap = strchr(tofs, '@'); | |
4752 | *tosnap++ = '\0'; | |
4753 | ||
4754 | error = nvlist_lookup_string(innvl, "origin", &origin); | |
4755 | if (error && error != ENOENT) | |
4756 | return (error); | |
4757 | ||
4758 | error = nvlist_lookup_byte_array(innvl, "begin_record", | |
02730c33 | 4759 | (uchar_t **)&begin_record, &begin_record_size); |
43e52edd BB |
4760 | if (error != 0 || begin_record_size != sizeof (*begin_record)) |
4761 | return (SET_ERROR(EINVAL)); | |
4762 | ||
4763 | error = nvlist_lookup_int32(innvl, "input_fd", &input_fd); | |
4764 | if (error != 0) | |
4765 | return (SET_ERROR(EINVAL)); | |
4766 | ||
4767 | force = nvlist_exists(innvl, "force"); | |
4768 | resumable = nvlist_exists(innvl, "resumable"); | |
4769 | ||
4770 | error = nvlist_lookup_int32(innvl, "cleanup_fd", &cleanup_fd); | |
4771 | if (error && error != ENOENT) | |
4772 | return (error); | |
4773 | ||
4774 | error = nvlist_lookup_uint64(innvl, "action_handle", &action_handle); | |
4775 | if (error && error != ENOENT) | |
4776 | return (error); | |
4777 | ||
a3eeab2d | 4778 | /* we still use "props" here for backwards compatibility */ |
4779 | error = nvlist_lookup_nvlist(innvl, "props", &recvprops); | |
43e52edd BB |
4780 | if (error && error != ENOENT) |
4781 | return (error); | |
4782 | ||
a3eeab2d | 4783 | error = nvlist_lookup_nvlist(innvl, "localprops", &localprops); |
4784 | if (error && error != ENOENT) | |
4785 | return (error); | |
4786 | ||
4787 | error = zfs_ioc_recv_impl(tofs, tosnap, origin, recvprops, localprops, | |
4788 | force, resumable, input_fd, begin_record, cleanup_fd, &read_bytes, | |
43e52edd BB |
4789 | &errflags, &action_handle, &errors); |
4790 | ||
4791 | fnvlist_add_uint64(outnvl, "read_bytes", read_bytes); | |
4792 | fnvlist_add_uint64(outnvl, "error_flags", errflags); | |
4793 | fnvlist_add_uint64(outnvl, "action_handle", action_handle); | |
4794 | fnvlist_add_nvlist(outnvl, "errors", errors); | |
4795 | ||
4796 | nvlist_free(errors); | |
a3eeab2d | 4797 | nvlist_free(recvprops); |
4798 | nvlist_free(localprops); | |
43e52edd BB |
4799 | |
4800 | return (error); | |
4801 | } | |
4802 | ||
34dc7c2f BB |
4803 | /* |
4804 | * inputs: | |
4805 | * zc_name name of snapshot to send | |
34dc7c2f | 4806 | * zc_cookie file descriptor to send stream to |
572e2857 BB |
4807 | * zc_obj fromorigin flag (mutually exclusive with zc_fromobj) |
4808 | * zc_sendobj objsetid of snapshot to send | |
4809 | * zc_fromobj objsetid of incremental fromsnap (may be zero) | |
330d06f9 MA |
4810 | * zc_guid if set, estimate size of stream only. zc_cookie is ignored. |
4811 | * output size in zc_objset_type. | |
f1512ee6 | 4812 | * zc_flags lzc_send_flags |
34dc7c2f | 4813 | * |
da536844 MA |
4814 | * outputs: |
4815 | * zc_objset_type estimated size, if zc_guid is set | |
cf7684bc | 4816 | * |
4817 | * NOTE: This is no longer the preferred interface, any new functionality | |
4818 | * should be added to zfs_ioc_send_new() instead. | |
34dc7c2f BB |
4819 | */ |
4820 | static int | |
4821 | zfs_ioc_send(zfs_cmd_t *zc) | |
4822 | { | |
34dc7c2f BB |
4823 | int error; |
4824 | offset_t off; | |
330d06f9 | 4825 | boolean_t estimate = (zc->zc_guid != 0); |
9b67f605 | 4826 | boolean_t embedok = (zc->zc_flags & 0x1); |
f1512ee6 | 4827 | boolean_t large_block_ok = (zc->zc_flags & 0x2); |
2aa34383 | 4828 | boolean_t compressok = (zc->zc_flags & 0x4); |
b5256303 | 4829 | boolean_t rawok = (zc->zc_flags & 0x8); |
34dc7c2f | 4830 | |
13fe0198 MA |
4831 | if (zc->zc_obj != 0) { |
4832 | dsl_pool_t *dp; | |
4833 | dsl_dataset_t *tosnap; | |
34dc7c2f | 4834 | |
13fe0198 MA |
4835 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
4836 | if (error != 0) | |
572e2857 | 4837 | return (error); |
13fe0198 MA |
4838 | |
4839 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap); | |
4840 | if (error != 0) { | |
4841 | dsl_pool_rele(dp, FTAG); | |
34dc7c2f BB |
4842 | return (error); |
4843 | } | |
13fe0198 MA |
4844 | |
4845 | if (dsl_dir_is_clone(tosnap->ds_dir)) | |
d683ddbb JG |
4846 | zc->zc_fromobj = |
4847 | dsl_dir_phys(tosnap->ds_dir)->dd_origin_obj; | |
13fe0198 MA |
4848 | dsl_dataset_rele(tosnap, FTAG); |
4849 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
4850 | } |
4851 | ||
13fe0198 MA |
4852 | if (estimate) { |
4853 | dsl_pool_t *dp; | |
4854 | dsl_dataset_t *tosnap; | |
4855 | dsl_dataset_t *fromsnap = NULL; | |
4856 | ||
4857 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); | |
4858 | if (error != 0) | |
4859 | return (error); | |
6f1ffb06 | 4860 | |
b5256303 TC |
4861 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, |
4862 | FTAG, &tosnap); | |
13fe0198 MA |
4863 | if (error != 0) { |
4864 | dsl_pool_rele(dp, FTAG); | |
4865 | return (error); | |
6f1ffb06 MA |
4866 | } |
4867 | ||
13fe0198 MA |
4868 | if (zc->zc_fromobj != 0) { |
4869 | error = dsl_dataset_hold_obj(dp, zc->zc_fromobj, | |
4870 | FTAG, &fromsnap); | |
4871 | if (error != 0) { | |
4872 | dsl_dataset_rele(tosnap, FTAG); | |
4873 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
4874 | return (error); |
4875 | } | |
4876 | } | |
34dc7c2f | 4877 | |
b5256303 | 4878 | error = dmu_send_estimate(tosnap, fromsnap, compressok || rawok, |
330d06f9 | 4879 | &zc->zc_objset_type); |
13fe0198 MA |
4880 | |
4881 | if (fromsnap != NULL) | |
4882 | dsl_dataset_rele(fromsnap, FTAG); | |
4883 | dsl_dataset_rele(tosnap, FTAG); | |
4884 | dsl_pool_rele(dp, FTAG); | |
330d06f9 MA |
4885 | } else { |
4886 | file_t *fp = getf(zc->zc_cookie); | |
13fe0198 | 4887 | if (fp == NULL) |
2e528b49 | 4888 | return (SET_ERROR(EBADF)); |
34dc7c2f | 4889 | |
330d06f9 | 4890 | off = fp->f_offset; |
13fe0198 | 4891 | error = dmu_send_obj(zc->zc_name, zc->zc_sendobj, |
b5256303 | 4892 | zc->zc_fromobj, embedok, large_block_ok, compressok, rawok, |
f1512ee6 | 4893 | zc->zc_cookie, fp->f_vnode, &off); |
34dc7c2f | 4894 | |
330d06f9 MA |
4895 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) |
4896 | fp->f_offset = off; | |
4897 | releasef(zc->zc_cookie); | |
4898 | } | |
34dc7c2f BB |
4899 | return (error); |
4900 | } | |
4901 | ||
37abac6d BP |
4902 | /* |
4903 | * inputs: | |
4904 | * zc_name name of snapshot on which to report progress | |
4905 | * zc_cookie file descriptor of send stream | |
4906 | * | |
4907 | * outputs: | |
4908 | * zc_cookie number of bytes written in send stream thus far | |
4909 | */ | |
4910 | static int | |
4911 | zfs_ioc_send_progress(zfs_cmd_t *zc) | |
4912 | { | |
13fe0198 | 4913 | dsl_pool_t *dp; |
37abac6d BP |
4914 | dsl_dataset_t *ds; |
4915 | dmu_sendarg_t *dsp = NULL; | |
4916 | int error; | |
4917 | ||
13fe0198 MA |
4918 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
4919 | if (error != 0) | |
37abac6d BP |
4920 | return (error); |
4921 | ||
13fe0198 MA |
4922 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &ds); |
4923 | if (error != 0) { | |
4924 | dsl_pool_rele(dp, FTAG); | |
4925 | return (error); | |
4926 | } | |
4927 | ||
37abac6d BP |
4928 | mutex_enter(&ds->ds_sendstream_lock); |
4929 | ||
4930 | /* | |
4931 | * Iterate over all the send streams currently active on this dataset. | |
4932 | * If there's one which matches the specified file descriptor _and_ the | |
4933 | * stream was started by the current process, return the progress of | |
4934 | * that stream. | |
4935 | */ | |
4936 | ||
4937 | for (dsp = list_head(&ds->ds_sendstreams); dsp != NULL; | |
4938 | dsp = list_next(&ds->ds_sendstreams, dsp)) { | |
4939 | if (dsp->dsa_outfd == zc->zc_cookie && | |
4940 | dsp->dsa_proc->group_leader == curproc->group_leader) | |
4941 | break; | |
4942 | } | |
4943 | ||
4944 | if (dsp != NULL) | |
4945 | zc->zc_cookie = *(dsp->dsa_off); | |
4946 | else | |
2e528b49 | 4947 | error = SET_ERROR(ENOENT); |
37abac6d BP |
4948 | |
4949 | mutex_exit(&ds->ds_sendstream_lock); | |
4950 | dsl_dataset_rele(ds, FTAG); | |
13fe0198 | 4951 | dsl_pool_rele(dp, FTAG); |
37abac6d BP |
4952 | return (error); |
4953 | } | |
4954 | ||
34dc7c2f BB |
4955 | static int |
4956 | zfs_ioc_inject_fault(zfs_cmd_t *zc) | |
4957 | { | |
4958 | int id, error; | |
4959 | ||
4960 | error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id, | |
4961 | &zc->zc_inject_record); | |
4962 | ||
4963 | if (error == 0) | |
4964 | zc->zc_guid = (uint64_t)id; | |
4965 | ||
4966 | return (error); | |
4967 | } | |
4968 | ||
4969 | static int | |
4970 | zfs_ioc_clear_fault(zfs_cmd_t *zc) | |
4971 | { | |
4972 | return (zio_clear_fault((int)zc->zc_guid)); | |
4973 | } | |
4974 | ||
4975 | static int | |
4976 | zfs_ioc_inject_list_next(zfs_cmd_t *zc) | |
4977 | { | |
4978 | int id = (int)zc->zc_guid; | |
4979 | int error; | |
4980 | ||
4981 | error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name), | |
4982 | &zc->zc_inject_record); | |
4983 | ||
4984 | zc->zc_guid = id; | |
4985 | ||
4986 | return (error); | |
4987 | } | |
4988 | ||
4989 | static int | |
4990 | zfs_ioc_error_log(zfs_cmd_t *zc) | |
4991 | { | |
4992 | spa_t *spa; | |
4993 | int error; | |
4994 | size_t count = (size_t)zc->zc_nvlist_dst_size; | |
4995 | ||
4996 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
4997 | return (error); | |
4998 | ||
4999 | error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst, | |
5000 | &count); | |
5001 | if (error == 0) | |
5002 | zc->zc_nvlist_dst_size = count; | |
5003 | else | |
5004 | zc->zc_nvlist_dst_size = spa_get_errlog_size(spa); | |
5005 | ||
5006 | spa_close(spa, FTAG); | |
5007 | ||
5008 | return (error); | |
5009 | } | |
5010 | ||
5011 | static int | |
5012 | zfs_ioc_clear(zfs_cmd_t *zc) | |
5013 | { | |
5014 | spa_t *spa; | |
5015 | vdev_t *vd; | |
34dc7c2f BB |
5016 | int error; |
5017 | ||
34dc7c2f | 5018 | /* |
b128c09f | 5019 | * On zpool clear we also fix up missing slogs |
34dc7c2f | 5020 | */ |
b128c09f BB |
5021 | mutex_enter(&spa_namespace_lock); |
5022 | spa = spa_lookup(zc->zc_name); | |
5023 | if (spa == NULL) { | |
5024 | mutex_exit(&spa_namespace_lock); | |
2e528b49 | 5025 | return (SET_ERROR(EIO)); |
b128c09f | 5026 | } |
428870ff | 5027 | if (spa_get_log_state(spa) == SPA_LOG_MISSING) { |
b128c09f | 5028 | /* we need to let spa_open/spa_load clear the chains */ |
428870ff | 5029 | spa_set_log_state(spa, SPA_LOG_CLEAR); |
34dc7c2f | 5030 | } |
428870ff | 5031 | spa->spa_last_open_failed = 0; |
b128c09f | 5032 | mutex_exit(&spa_namespace_lock); |
34dc7c2f | 5033 | |
428870ff BB |
5034 | if (zc->zc_cookie & ZPOOL_NO_REWIND) { |
5035 | error = spa_open(zc->zc_name, &spa, FTAG); | |
5036 | } else { | |
5037 | nvlist_t *policy; | |
5038 | nvlist_t *config = NULL; | |
5039 | ||
b8864a23 | 5040 | if (zc->zc_nvlist_src == 0) |
2e528b49 | 5041 | return (SET_ERROR(EINVAL)); |
428870ff BB |
5042 | |
5043 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
5044 | zc->zc_nvlist_src_size, zc->zc_iflags, &policy)) == 0) { | |
5045 | error = spa_open_rewind(zc->zc_name, &spa, FTAG, | |
5046 | policy, &config); | |
5047 | if (config != NULL) { | |
572e2857 BB |
5048 | int err; |
5049 | ||
5050 | if ((err = put_nvlist(zc, config)) != 0) | |
5051 | error = err; | |
428870ff BB |
5052 | nvlist_free(config); |
5053 | } | |
5054 | nvlist_free(policy); | |
5055 | } | |
5056 | } | |
5057 | ||
13fe0198 | 5058 | if (error != 0) |
b128c09f BB |
5059 | return (error); |
5060 | ||
428870ff | 5061 | spa_vdev_state_enter(spa, SCL_NONE); |
34dc7c2f BB |
5062 | |
5063 | if (zc->zc_guid == 0) { | |
5064 | vd = NULL; | |
b128c09f BB |
5065 | } else { |
5066 | vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE); | |
34dc7c2f | 5067 | if (vd == NULL) { |
b128c09f | 5068 | (void) spa_vdev_state_exit(spa, NULL, ENODEV); |
34dc7c2f | 5069 | spa_close(spa, FTAG); |
2e528b49 | 5070 | return (SET_ERROR(ENODEV)); |
34dc7c2f BB |
5071 | } |
5072 | } | |
5073 | ||
b128c09f BB |
5074 | vdev_clear(spa, vd); |
5075 | ||
3f759c0c BB |
5076 | (void) spa_vdev_state_exit(spa, spa_suspended(spa) ? |
5077 | NULL : spa->spa_root_vdev, 0); | |
34dc7c2f | 5078 | |
b128c09f BB |
5079 | /* |
5080 | * Resume any suspended I/Os. | |
5081 | */ | |
9babb374 | 5082 | if (zio_resume(spa) != 0) |
2e528b49 | 5083 | error = SET_ERROR(EIO); |
34dc7c2f BB |
5084 | |
5085 | spa_close(spa, FTAG); | |
5086 | ||
9babb374 | 5087 | return (error); |
34dc7c2f BB |
5088 | } |
5089 | ||
d3f2cd7e AB |
5090 | /* |
5091 | * Reopen all the vdevs associated with the pool. | |
5092 | * | |
5093 | * innvl: { | |
5094 | * "scrub_restart" -> when true and scrub is running, allow to restart | |
5095 | * scrub as the side effect of the reopen (boolean). | |
5096 | * } | |
5097 | * | |
5098 | * outnvl is unused | |
5099 | */ | |
5100 | /* ARGSUSED */ | |
1bd201e7 | 5101 | static int |
d3f2cd7e | 5102 | zfs_ioc_pool_reopen(const char *pool, nvlist_t *innvl, nvlist_t *outnvl) |
1bd201e7 CS |
5103 | { |
5104 | spa_t *spa; | |
5105 | int error; | |
d3f2cd7e | 5106 | boolean_t scrub_restart = B_TRUE; |
1bd201e7 | 5107 | |
d3f2cd7e AB |
5108 | if (innvl) { |
5109 | if (nvlist_lookup_boolean_value(innvl, "scrub_restart", | |
5110 | &scrub_restart) != 0) { | |
5111 | return (SET_ERROR(EINVAL)); | |
5112 | } | |
5113 | } | |
5114 | ||
5115 | error = spa_open(pool, &spa, FTAG); | |
13fe0198 | 5116 | if (error != 0) |
1bd201e7 CS |
5117 | return (error); |
5118 | ||
5119 | spa_vdev_state_enter(spa, SCL_NONE); | |
65947351 GW |
5120 | |
5121 | /* | |
d3f2cd7e AB |
5122 | * If the scrub_restart flag is B_FALSE and a scrub is already |
5123 | * in progress then set spa_scrub_reopen flag to B_TRUE so that | |
5124 | * we don't restart the scrub as a side effect of the reopen. | |
5125 | * Otherwise, let vdev_open() decided if a resilver is required. | |
65947351 | 5126 | */ |
d3f2cd7e AB |
5127 | |
5128 | spa->spa_scrub_reopen = (!scrub_restart && | |
5129 | dsl_scan_scrubbing(spa->spa_dsl_pool)); | |
1bd201e7 | 5130 | vdev_reopen(spa->spa_root_vdev); |
65947351 GW |
5131 | spa->spa_scrub_reopen = B_FALSE; |
5132 | ||
1bd201e7 CS |
5133 | (void) spa_vdev_state_exit(spa, NULL, 0); |
5134 | spa_close(spa, FTAG); | |
5135 | return (0); | |
5136 | } | |
d3f2cd7e | 5137 | |
34dc7c2f BB |
5138 | /* |
5139 | * inputs: | |
5140 | * zc_name name of filesystem | |
34dc7c2f | 5141 | * |
428870ff BB |
5142 | * outputs: |
5143 | * zc_string name of conflicting snapshot, if there is one | |
34dc7c2f BB |
5144 | */ |
5145 | static int | |
5146 | zfs_ioc_promote(zfs_cmd_t *zc) | |
5147 | { | |
d12f91fd GDN |
5148 | dsl_pool_t *dp; |
5149 | dsl_dataset_t *ds, *ods; | |
5150 | char origin[ZFS_MAX_DATASET_NAME_LEN]; | |
34dc7c2f | 5151 | char *cp; |
d12f91fd GDN |
5152 | int error; |
5153 | ||
650258d7 | 5154 | zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; |
5155 | if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0 || | |
5156 | strchr(zc->zc_name, '%')) | |
5157 | return (SET_ERROR(EINVAL)); | |
5158 | ||
d12f91fd GDN |
5159 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
5160 | if (error != 0) | |
5161 | return (error); | |
5162 | ||
5163 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &ds); | |
5164 | if (error != 0) { | |
5165 | dsl_pool_rele(dp, FTAG); | |
5166 | return (error); | |
5167 | } | |
5168 | ||
5169 | if (!dsl_dir_is_clone(ds->ds_dir)) { | |
5170 | dsl_dataset_rele(ds, FTAG); | |
5171 | dsl_pool_rele(dp, FTAG); | |
5172 | return (SET_ERROR(EINVAL)); | |
5173 | } | |
5174 | ||
5175 | error = dsl_dataset_hold_obj(dp, | |
5176 | dsl_dir_phys(ds->ds_dir)->dd_origin_obj, FTAG, &ods); | |
5177 | if (error != 0) { | |
5178 | dsl_dataset_rele(ds, FTAG); | |
5179 | dsl_pool_rele(dp, FTAG); | |
5180 | return (error); | |
5181 | } | |
5182 | ||
5183 | dsl_dataset_name(ods, origin); | |
5184 | dsl_dataset_rele(ods, FTAG); | |
5185 | dsl_dataset_rele(ds, FTAG); | |
5186 | dsl_pool_rele(dp, FTAG); | |
34dc7c2f BB |
5187 | |
5188 | /* | |
5189 | * We don't need to unmount *all* the origin fs's snapshots, but | |
5190 | * it's easier. | |
5191 | */ | |
d12f91fd | 5192 | cp = strchr(origin, '@'); |
34dc7c2f BB |
5193 | if (cp) |
5194 | *cp = '\0'; | |
d12f91fd | 5195 | (void) dmu_objset_find(origin, |
13fe0198 | 5196 | zfs_unmount_snap_cb, NULL, DS_FIND_SNAPSHOTS); |
428870ff | 5197 | return (dsl_dataset_promote(zc->zc_name, zc->zc_string)); |
34dc7c2f BB |
5198 | } |
5199 | ||
9babb374 | 5200 | /* |
9c5167d1 | 5201 | * Retrieve a single {user|group|project}{used|quota}@... property. |
9babb374 BB |
5202 | * |
5203 | * inputs: | |
5204 | * zc_name name of filesystem | |
5205 | * zc_objset_type zfs_userquota_prop_t | |
5206 | * zc_value domain name (eg. "S-1-234-567-89") | |
5207 | * zc_guid RID/UID/GID | |
5208 | * | |
5209 | * outputs: | |
5210 | * zc_cookie property value | |
5211 | */ | |
5212 | static int | |
5213 | zfs_ioc_userspace_one(zfs_cmd_t *zc) | |
5214 | { | |
0037b49e | 5215 | zfsvfs_t *zfsvfs; |
9babb374 BB |
5216 | int error; |
5217 | ||
5218 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
2e528b49 | 5219 | return (SET_ERROR(EINVAL)); |
9babb374 | 5220 | |
f298b24d | 5221 | error = zfsvfs_hold(zc->zc_name, FTAG, &zfsvfs, B_FALSE); |
13fe0198 | 5222 | if (error != 0) |
9babb374 BB |
5223 | return (error); |
5224 | ||
0037b49e | 5225 | error = zfs_userspace_one(zfsvfs, |
9babb374 | 5226 | zc->zc_objset_type, zc->zc_value, zc->zc_guid, &zc->zc_cookie); |
f298b24d | 5227 | zfsvfs_rele(zfsvfs, FTAG); |
9babb374 BB |
5228 | |
5229 | return (error); | |
5230 | } | |
5231 | ||
5232 | /* | |
5233 | * inputs: | |
5234 | * zc_name name of filesystem | |
5235 | * zc_cookie zap cursor | |
5236 | * zc_objset_type zfs_userquota_prop_t | |
5237 | * zc_nvlist_dst[_size] buffer to fill (not really an nvlist) | |
5238 | * | |
5239 | * outputs: | |
5240 | * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t) | |
5241 | * zc_cookie zap cursor | |
5242 | */ | |
5243 | static int | |
5244 | zfs_ioc_userspace_many(zfs_cmd_t *zc) | |
5245 | { | |
0037b49e | 5246 | zfsvfs_t *zfsvfs; |
428870ff BB |
5247 | int bufsize = zc->zc_nvlist_dst_size; |
5248 | ||
5249 | if (bufsize <= 0) | |
2e528b49 | 5250 | return (SET_ERROR(ENOMEM)); |
9babb374 | 5251 | |
1c27024e | 5252 | int error = zfsvfs_hold(zc->zc_name, FTAG, &zfsvfs, B_FALSE); |
13fe0198 | 5253 | if (error != 0) |
9babb374 BB |
5254 | return (error); |
5255 | ||
1c27024e | 5256 | void *buf = vmem_alloc(bufsize, KM_SLEEP); |
9babb374 | 5257 | |
0037b49e | 5258 | error = zfs_userspace_many(zfsvfs, zc->zc_objset_type, &zc->zc_cookie, |
9babb374 BB |
5259 | buf, &zc->zc_nvlist_dst_size); |
5260 | ||
5261 | if (error == 0) { | |
5262 | error = xcopyout(buf, | |
5263 | (void *)(uintptr_t)zc->zc_nvlist_dst, | |
5264 | zc->zc_nvlist_dst_size); | |
5265 | } | |
2b8cad61 | 5266 | vmem_free(buf, bufsize); |
f298b24d | 5267 | zfsvfs_rele(zfsvfs, FTAG); |
9babb374 BB |
5268 | |
5269 | return (error); | |
5270 | } | |
5271 | ||
5272 | /* | |
5273 | * inputs: | |
5274 | * zc_name name of filesystem | |
5275 | * | |
5276 | * outputs: | |
5277 | * none | |
5278 | */ | |
5279 | static int | |
5280 | zfs_ioc_userspace_upgrade(zfs_cmd_t *zc) | |
5281 | { | |
5282 | objset_t *os; | |
428870ff | 5283 | int error = 0; |
0037b49e | 5284 | zfsvfs_t *zfsvfs; |
9babb374 | 5285 | |
f298b24d | 5286 | if (getzfsvfs(zc->zc_name, &zfsvfs) == 0) { |
0037b49e | 5287 | if (!dmu_objset_userused_enabled(zfsvfs->z_os)) { |
9babb374 BB |
5288 | /* |
5289 | * If userused is not enabled, it may be because the | |
5290 | * objset needs to be closed & reopened (to grow the | |
5291 | * objset_phys_t). Suspend/resume the fs will do that. | |
5292 | */ | |
5e00213e | 5293 | dsl_dataset_t *ds, *newds; |
ec923db2 | 5294 | |
0037b49e BB |
5295 | ds = dmu_objset_ds(zfsvfs->z_os); |
5296 | error = zfs_suspend_fs(zfsvfs); | |
831baf06 | 5297 | if (error == 0) { |
5e00213e | 5298 | dmu_objset_refresh_ownership(ds, &newds, |
b5256303 | 5299 | B_TRUE, zfsvfs); |
5e00213e | 5300 | error = zfs_resume_fs(zfsvfs, newds); |
831baf06 | 5301 | } |
9babb374 BB |
5302 | } |
5303 | if (error == 0) | |
0037b49e BB |
5304 | error = dmu_objset_userspace_upgrade(zfsvfs->z_os); |
5305 | deactivate_super(zfsvfs->z_sb); | |
9babb374 | 5306 | } else { |
428870ff | 5307 | /* XXX kind of reading contents without owning */ |
b5256303 | 5308 | error = dmu_objset_hold_flags(zc->zc_name, B_TRUE, FTAG, &os); |
13fe0198 | 5309 | if (error != 0) |
9babb374 BB |
5310 | return (error); |
5311 | ||
5312 | error = dmu_objset_userspace_upgrade(os); | |
b5256303 | 5313 | dmu_objset_rele_flags(os, B_TRUE, FTAG); |
9babb374 BB |
5314 | } |
5315 | ||
5316 | return (error); | |
5317 | } | |
5318 | ||
1de321e6 JX |
5319 | /* |
5320 | * inputs: | |
5321 | * zc_name name of filesystem | |
5322 | * | |
5323 | * outputs: | |
5324 | * none | |
5325 | */ | |
5326 | static int | |
9c5167d1 | 5327 | zfs_ioc_id_quota_upgrade(zfs_cmd_t *zc) |
1de321e6 JX |
5328 | { |
5329 | objset_t *os; | |
5330 | int error; | |
5331 | ||
b5256303 | 5332 | error = dmu_objset_hold_flags(zc->zc_name, B_TRUE, FTAG, &os); |
1de321e6 JX |
5333 | if (error != 0) |
5334 | return (error); | |
5335 | ||
9c5167d1 NF |
5336 | if (dmu_objset_userobjspace_upgradable(os) || |
5337 | dmu_objset_projectquota_upgradable(os)) { | |
1de321e6 JX |
5338 | mutex_enter(&os->os_upgrade_lock); |
5339 | if (os->os_upgrade_id == 0) { | |
5340 | /* clear potential error code and retry */ | |
5341 | os->os_upgrade_status = 0; | |
5342 | mutex_exit(&os->os_upgrade_lock); | |
5343 | ||
9c5167d1 | 5344 | dmu_objset_id_quota_upgrade(os); |
1de321e6 JX |
5345 | } else { |
5346 | mutex_exit(&os->os_upgrade_lock); | |
5347 | } | |
5348 | ||
c0daec32 AB |
5349 | dsl_pool_rele(dmu_objset_pool(os), FTAG); |
5350 | ||
1de321e6 JX |
5351 | taskq_wait_id(os->os_spa->spa_upgrade_taskq, os->os_upgrade_id); |
5352 | error = os->os_upgrade_status; | |
c0daec32 AB |
5353 | } else { |
5354 | dsl_pool_rele(dmu_objset_pool(os), FTAG); | |
1de321e6 JX |
5355 | } |
5356 | ||
b5256303 | 5357 | dsl_dataset_rele_flags(dmu_objset_ds(os), DS_HOLD_FLAG_DECRYPT, FTAG); |
1de321e6 JX |
5358 | |
5359 | return (error); | |
5360 | } | |
5361 | ||
34dc7c2f BB |
5362 | static int |
5363 | zfs_ioc_share(zfs_cmd_t *zc) | |
5364 | { | |
2e528b49 | 5365 | return (SET_ERROR(ENOSYS)); |
34dc7c2f BB |
5366 | } |
5367 | ||
9babb374 BB |
5368 | ace_t full_access[] = { |
5369 | {(uid_t)-1, ACE_ALL_PERMS, ACE_EVERYONE, 0} | |
5370 | }; | |
5371 | ||
572e2857 BB |
5372 | /* |
5373 | * inputs: | |
5374 | * zc_name name of containing filesystem | |
5375 | * zc_obj object # beyond which we want next in-use object # | |
5376 | * | |
5377 | * outputs: | |
5378 | * zc_obj next in-use object # | |
5379 | */ | |
5380 | static int | |
5381 | zfs_ioc_next_obj(zfs_cmd_t *zc) | |
5382 | { | |
5383 | objset_t *os = NULL; | |
5384 | int error; | |
5385 | ||
5386 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
13fe0198 | 5387 | if (error != 0) |
572e2857 BB |
5388 | return (error); |
5389 | ||
7290cd3c | 5390 | error = dmu_object_next(os, &zc->zc_obj, B_FALSE, 0); |
572e2857 BB |
5391 | |
5392 | dmu_objset_rele(os, FTAG); | |
5393 | return (error); | |
5394 | } | |
5395 | ||
5396 | /* | |
5397 | * inputs: | |
5398 | * zc_name name of filesystem | |
5399 | * zc_value prefix name for snapshot | |
5400 | * zc_cleanup_fd cleanup-on-exit file descriptor for calling process | |
5401 | * | |
5402 | * outputs: | |
6f1ffb06 | 5403 | * zc_value short name of new snapshot |
572e2857 BB |
5404 | */ |
5405 | static int | |
5406 | zfs_ioc_tmp_snapshot(zfs_cmd_t *zc) | |
5407 | { | |
5408 | char *snap_name; | |
13fe0198 | 5409 | char *hold_name; |
572e2857 | 5410 | int error; |
13fe0198 | 5411 | minor_t minor; |
572e2857 | 5412 | |
13fe0198 MA |
5413 | error = zfs_onexit_fd_hold(zc->zc_cleanup_fd, &minor); |
5414 | if (error != 0) | |
572e2857 | 5415 | return (error); |
572e2857 | 5416 | |
13fe0198 MA |
5417 | snap_name = kmem_asprintf("%s-%016llx", zc->zc_value, |
5418 | (u_longlong_t)ddi_get_lbolt64()); | |
5419 | hold_name = kmem_asprintf("%%%s", zc->zc_value); | |
5420 | ||
5421 | error = dsl_dataset_snapshot_tmp(zc->zc_name, snap_name, minor, | |
5422 | hold_name); | |
5423 | if (error == 0) | |
680eada9 | 5424 | (void) strlcpy(zc->zc_value, snap_name, |
5425 | sizeof (zc->zc_value)); | |
572e2857 | 5426 | strfree(snap_name); |
13fe0198 MA |
5427 | strfree(hold_name); |
5428 | zfs_onexit_fd_rele(zc->zc_cleanup_fd); | |
5429 | return (error); | |
572e2857 BB |
5430 | } |
5431 | ||
5432 | /* | |
5433 | * inputs: | |
5434 | * zc_name name of "to" snapshot | |
5435 | * zc_value name of "from" snapshot | |
5436 | * zc_cookie file descriptor to write diff data on | |
5437 | * | |
5438 | * outputs: | |
5439 | * dmu_diff_record_t's to the file descriptor | |
5440 | */ | |
5441 | static int | |
5442 | zfs_ioc_diff(zfs_cmd_t *zc) | |
5443 | { | |
572e2857 BB |
5444 | file_t *fp; |
5445 | offset_t off; | |
5446 | int error; | |
5447 | ||
572e2857 | 5448 | fp = getf(zc->zc_cookie); |
13fe0198 | 5449 | if (fp == NULL) |
2e528b49 | 5450 | return (SET_ERROR(EBADF)); |
572e2857 BB |
5451 | |
5452 | off = fp->f_offset; | |
5453 | ||
13fe0198 | 5454 | error = dmu_diff(zc->zc_name, zc->zc_value, fp->f_vnode, &off); |
572e2857 BB |
5455 | |
5456 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
5457 | fp->f_offset = off; | |
5458 | releasef(zc->zc_cookie); | |
5459 | ||
572e2857 BB |
5460 | return (error); |
5461 | } | |
5462 | ||
9babb374 BB |
5463 | /* |
5464 | * Remove all ACL files in shares dir | |
5465 | */ | |
3c9609b3 | 5466 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
5467 | static int |
5468 | zfs_smb_acl_purge(znode_t *dzp) | |
5469 | { | |
5470 | zap_cursor_t zc; | |
5471 | zap_attribute_t zap; | |
0037b49e | 5472 | zfsvfs_t *zfsvfs = ZTOZSB(dzp); |
9babb374 BB |
5473 | int error; |
5474 | ||
0037b49e | 5475 | for (zap_cursor_init(&zc, zfsvfs->z_os, dzp->z_id); |
9babb374 BB |
5476 | (error = zap_cursor_retrieve(&zc, &zap)) == 0; |
5477 | zap_cursor_advance(&zc)) { | |
5478 | if ((error = VOP_REMOVE(ZTOV(dzp), zap.za_name, kcred, | |
5479 | NULL, 0)) != 0) | |
5480 | break; | |
5481 | } | |
5482 | zap_cursor_fini(&zc); | |
5483 | return (error); | |
5484 | } | |
3c9609b3 | 5485 | #endif /* HAVE_SMB_SHARE */ |
9babb374 BB |
5486 | |
5487 | static int | |
5488 | zfs_ioc_smb_acl(zfs_cmd_t *zc) | |
5489 | { | |
3c9609b3 | 5490 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
5491 | vnode_t *vp; |
5492 | znode_t *dzp; | |
5493 | vnode_t *resourcevp = NULL; | |
5494 | znode_t *sharedir; | |
0037b49e | 5495 | zfsvfs_t *zfsvfs; |
9babb374 BB |
5496 | nvlist_t *nvlist; |
5497 | char *src, *target; | |
5498 | vattr_t vattr; | |
5499 | vsecattr_t vsec; | |
5500 | int error = 0; | |
5501 | ||
5502 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
5503 | NO_FOLLOW, NULL, &vp)) != 0) | |
5504 | return (error); | |
5505 | ||
5506 | /* Now make sure mntpnt and dataset are ZFS */ | |
5507 | ||
5508 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
5509 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
5510 | zc->zc_name) != 0)) { | |
5511 | VN_RELE(vp); | |
2e528b49 | 5512 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
5513 | } |
5514 | ||
5515 | dzp = VTOZ(vp); | |
0037b49e BB |
5516 | zfsvfs = ZTOZSB(dzp); |
5517 | ZFS_ENTER(zfsvfs); | |
9babb374 BB |
5518 | |
5519 | /* | |
5520 | * Create share dir if its missing. | |
5521 | */ | |
0037b49e BB |
5522 | mutex_enter(&zfsvfs->z_lock); |
5523 | if (zfsvfs->z_shares_dir == 0) { | |
9babb374 BB |
5524 | dmu_tx_t *tx; |
5525 | ||
0037b49e | 5526 | tx = dmu_tx_create(zfsvfs->z_os); |
9babb374 BB |
5527 | dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, TRUE, |
5528 | ZFS_SHARES_DIR); | |
5529 | dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL); | |
5530 | error = dmu_tx_assign(tx, TXG_WAIT); | |
13fe0198 | 5531 | if (error != 0) { |
9babb374 BB |
5532 | dmu_tx_abort(tx); |
5533 | } else { | |
0037b49e | 5534 | error = zfs_create_share_dir(zfsvfs, tx); |
9babb374 BB |
5535 | dmu_tx_commit(tx); |
5536 | } | |
13fe0198 | 5537 | if (error != 0) { |
0037b49e | 5538 | mutex_exit(&zfsvfs->z_lock); |
9babb374 | 5539 | VN_RELE(vp); |
0037b49e | 5540 | ZFS_EXIT(zfsvfs); |
9babb374 BB |
5541 | return (error); |
5542 | } | |
5543 | } | |
0037b49e | 5544 | mutex_exit(&zfsvfs->z_lock); |
9babb374 | 5545 | |
0037b49e BB |
5546 | ASSERT(zfsvfs->z_shares_dir); |
5547 | if ((error = zfs_zget(zfsvfs, zfsvfs->z_shares_dir, &sharedir)) != 0) { | |
9babb374 | 5548 | VN_RELE(vp); |
0037b49e | 5549 | ZFS_EXIT(zfsvfs); |
9babb374 BB |
5550 | return (error); |
5551 | } | |
5552 | ||
5553 | switch (zc->zc_cookie) { | |
5554 | case ZFS_SMB_ACL_ADD: | |
5555 | vattr.va_mask = AT_MODE|AT_UID|AT_GID|AT_TYPE; | |
9babb374 BB |
5556 | vattr.va_mode = S_IFREG|0777; |
5557 | vattr.va_uid = 0; | |
5558 | vattr.va_gid = 0; | |
5559 | ||
5560 | vsec.vsa_mask = VSA_ACE; | |
5561 | vsec.vsa_aclentp = &full_access; | |
5562 | vsec.vsa_aclentsz = sizeof (full_access); | |
5563 | vsec.vsa_aclcnt = 1; | |
5564 | ||
5565 | error = VOP_CREATE(ZTOV(sharedir), zc->zc_string, | |
5566 | &vattr, EXCL, 0, &resourcevp, kcred, 0, NULL, &vsec); | |
5567 | if (resourcevp) | |
5568 | VN_RELE(resourcevp); | |
5569 | break; | |
5570 | ||
5571 | case ZFS_SMB_ACL_REMOVE: | |
5572 | error = VOP_REMOVE(ZTOV(sharedir), zc->zc_string, kcred, | |
5573 | NULL, 0); | |
5574 | break; | |
5575 | ||
5576 | case ZFS_SMB_ACL_RENAME: | |
5577 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
5578 | zc->zc_nvlist_src_size, zc->zc_iflags, &nvlist)) != 0) { | |
5579 | VN_RELE(vp); | |
a4d179ef | 5580 | VN_RELE(ZTOV(sharedir)); |
0037b49e | 5581 | ZFS_EXIT(zfsvfs); |
9babb374 BB |
5582 | return (error); |
5583 | } | |
5584 | if (nvlist_lookup_string(nvlist, ZFS_SMB_ACL_SRC, &src) || | |
5585 | nvlist_lookup_string(nvlist, ZFS_SMB_ACL_TARGET, | |
5586 | &target)) { | |
5587 | VN_RELE(vp); | |
5588 | VN_RELE(ZTOV(sharedir)); | |
0037b49e | 5589 | ZFS_EXIT(zfsvfs); |
428870ff | 5590 | nvlist_free(nvlist); |
9babb374 BB |
5591 | return (error); |
5592 | } | |
5593 | error = VOP_RENAME(ZTOV(sharedir), src, ZTOV(sharedir), target, | |
5594 | kcred, NULL, 0); | |
5595 | nvlist_free(nvlist); | |
5596 | break; | |
5597 | ||
5598 | case ZFS_SMB_ACL_PURGE: | |
5599 | error = zfs_smb_acl_purge(sharedir); | |
5600 | break; | |
5601 | ||
5602 | default: | |
2e528b49 | 5603 | error = SET_ERROR(EINVAL); |
9babb374 BB |
5604 | break; |
5605 | } | |
5606 | ||
5607 | VN_RELE(vp); | |
5608 | VN_RELE(ZTOV(sharedir)); | |
5609 | ||
0037b49e | 5610 | ZFS_EXIT(zfsvfs); |
9babb374 BB |
5611 | |
5612 | return (error); | |
325f0235 | 5613 | #else |
2e528b49 | 5614 | return (SET_ERROR(ENOTSUP)); |
3c9609b3 | 5615 | #endif /* HAVE_SMB_SHARE */ |
9babb374 BB |
5616 | } |
5617 | ||
45d1cae3 | 5618 | /* |
13fe0198 MA |
5619 | * innvl: { |
5620 | * "holds" -> { snapname -> holdname (string), ... } | |
5621 | * (optional) "cleanup_fd" -> fd (int32) | |
5622 | * } | |
45d1cae3 | 5623 | * |
13fe0198 MA |
5624 | * outnvl: { |
5625 | * snapname -> error value (int32) | |
5626 | * ... | |
5627 | * } | |
45d1cae3 | 5628 | */ |
13fe0198 | 5629 | /* ARGSUSED */ |
45d1cae3 | 5630 | static int |
13fe0198 | 5631 | zfs_ioc_hold(const char *pool, nvlist_t *args, nvlist_t *errlist) |
45d1cae3 | 5632 | { |
fc581e05 | 5633 | nvpair_t *pair; |
13fe0198 MA |
5634 | nvlist_t *holds; |
5635 | int cleanup_fd = -1; | |
572e2857 BB |
5636 | int error; |
5637 | minor_t minor = 0; | |
45d1cae3 | 5638 | |
13fe0198 MA |
5639 | error = nvlist_lookup_nvlist(args, "holds", &holds); |
5640 | if (error != 0) | |
2e528b49 | 5641 | return (SET_ERROR(EINVAL)); |
572e2857 | 5642 | |
fc581e05 JJS |
5643 | /* make sure the user didn't pass us any invalid (empty) tags */ |
5644 | for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL; | |
5645 | pair = nvlist_next_nvpair(holds, pair)) { | |
5646 | char *htag; | |
5647 | ||
5648 | error = nvpair_value_string(pair, &htag); | |
5649 | if (error != 0) | |
5650 | return (SET_ERROR(error)); | |
5651 | ||
5652 | if (strlen(htag) == 0) | |
5653 | return (SET_ERROR(EINVAL)); | |
5654 | } | |
5655 | ||
13fe0198 MA |
5656 | if (nvlist_lookup_int32(args, "cleanup_fd", &cleanup_fd) == 0) { |
5657 | error = zfs_onexit_fd_hold(cleanup_fd, &minor); | |
5658 | if (error != 0) | |
572e2857 | 5659 | return (error); |
572e2857 | 5660 | } |
572e2857 | 5661 | |
13fe0198 MA |
5662 | error = dsl_dataset_user_hold(holds, minor, errlist); |
5663 | if (minor != 0) | |
5664 | zfs_onexit_fd_rele(cleanup_fd); | |
572e2857 | 5665 | return (error); |
45d1cae3 BB |
5666 | } |
5667 | ||
5668 | /* | |
13fe0198 | 5669 | * innvl is not used. |
45d1cae3 | 5670 | * |
13fe0198 MA |
5671 | * outnvl: { |
5672 | * holdname -> time added (uint64 seconds since epoch) | |
5673 | * ... | |
5674 | * } | |
45d1cae3 | 5675 | */ |
13fe0198 | 5676 | /* ARGSUSED */ |
45d1cae3 | 5677 | static int |
13fe0198 | 5678 | zfs_ioc_get_holds(const char *snapname, nvlist_t *args, nvlist_t *outnvl) |
45d1cae3 | 5679 | { |
bec1067d | 5680 | ASSERT3P(args, ==, NULL); |
13fe0198 | 5681 | return (dsl_dataset_get_holds(snapname, outnvl)); |
45d1cae3 BB |
5682 | } |
5683 | ||
5684 | /* | |
13fe0198 MA |
5685 | * innvl: { |
5686 | * snapname -> { holdname, ... } | |
5687 | * ... | |
5688 | * } | |
45d1cae3 | 5689 | * |
13fe0198 MA |
5690 | * outnvl: { |
5691 | * snapname -> error value (int32) | |
5692 | * ... | |
5693 | * } | |
45d1cae3 | 5694 | */ |
13fe0198 | 5695 | /* ARGSUSED */ |
45d1cae3 | 5696 | static int |
13fe0198 | 5697 | zfs_ioc_release(const char *pool, nvlist_t *holds, nvlist_t *errlist) |
45d1cae3 | 5698 | { |
13fe0198 | 5699 | return (dsl_dataset_user_release(holds, errlist)); |
45d1cae3 BB |
5700 | } |
5701 | ||
26685276 BB |
5702 | /* |
5703 | * inputs: | |
5704 | * zc_guid flags (ZEVENT_NONBLOCK) | |
9b101a73 | 5705 | * zc_cleanup_fd zevent file descriptor |
26685276 BB |
5706 | * |
5707 | * outputs: | |
5708 | * zc_nvlist_dst next nvlist event | |
5709 | * zc_cookie dropped events since last get | |
26685276 BB |
5710 | */ |
5711 | static int | |
5712 | zfs_ioc_events_next(zfs_cmd_t *zc) | |
5713 | { | |
5714 | zfs_zevent_t *ze; | |
5715 | nvlist_t *event = NULL; | |
5716 | minor_t minor; | |
5717 | uint64_t dropped = 0; | |
5718 | int error; | |
5719 | ||
5720 | error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze); | |
5721 | if (error != 0) | |
5722 | return (error); | |
5723 | ||
5724 | do { | |
baa40d45 | 5725 | error = zfs_zevent_next(ze, &event, |
02730c33 | 5726 | &zc->zc_nvlist_dst_size, &dropped); |
26685276 BB |
5727 | if (event != NULL) { |
5728 | zc->zc_cookie = dropped; | |
5729 | error = put_nvlist(zc, event); | |
baa40d45 | 5730 | nvlist_free(event); |
26685276 BB |
5731 | } |
5732 | ||
5733 | if (zc->zc_guid & ZEVENT_NONBLOCK) | |
5734 | break; | |
5735 | ||
5736 | if ((error == 0) || (error != ENOENT)) | |
5737 | break; | |
5738 | ||
5739 | error = zfs_zevent_wait(ze); | |
13fe0198 | 5740 | if (error != 0) |
26685276 BB |
5741 | break; |
5742 | } while (1); | |
5743 | ||
5744 | zfs_zevent_fd_rele(zc->zc_cleanup_fd); | |
5745 | ||
5746 | return (error); | |
5747 | } | |
5748 | ||
5749 | /* | |
5750 | * outputs: | |
5751 | * zc_cookie cleared events count | |
5752 | */ | |
5753 | static int | |
5754 | zfs_ioc_events_clear(zfs_cmd_t *zc) | |
5755 | { | |
5756 | int count; | |
5757 | ||
5758 | zfs_zevent_drain_all(&count); | |
5759 | zc->zc_cookie = count; | |
5760 | ||
d1d7e268 | 5761 | return (0); |
26685276 BB |
5762 | } |
5763 | ||
75e3ff58 BB |
5764 | /* |
5765 | * inputs: | |
5766 | * zc_guid eid | ZEVENT_SEEK_START | ZEVENT_SEEK_END | |
5767 | * zc_cleanup zevent file descriptor | |
5768 | */ | |
5769 | static int | |
5770 | zfs_ioc_events_seek(zfs_cmd_t *zc) | |
5771 | { | |
5772 | zfs_zevent_t *ze; | |
5773 | minor_t minor; | |
5774 | int error; | |
5775 | ||
5776 | error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze); | |
5777 | if (error != 0) | |
5778 | return (error); | |
5779 | ||
5780 | error = zfs_zevent_seek(ze, zc->zc_guid); | |
5781 | zfs_zevent_fd_rele(zc->zc_cleanup_fd); | |
5782 | ||
5783 | return (error); | |
5784 | } | |
5785 | ||
330d06f9 MA |
5786 | /* |
5787 | * inputs: | |
5788 | * zc_name name of new filesystem or snapshot | |
5789 | * zc_value full name of old snapshot | |
5790 | * | |
5791 | * outputs: | |
5792 | * zc_cookie space in bytes | |
5793 | * zc_objset_type compressed space in bytes | |
5794 | * zc_perm_action uncompressed space in bytes | |
5795 | */ | |
5796 | static int | |
5797 | zfs_ioc_space_written(zfs_cmd_t *zc) | |
5798 | { | |
5799 | int error; | |
13fe0198 | 5800 | dsl_pool_t *dp; |
330d06f9 MA |
5801 | dsl_dataset_t *new, *old; |
5802 | ||
13fe0198 | 5803 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
330d06f9 MA |
5804 | if (error != 0) |
5805 | return (error); | |
13fe0198 MA |
5806 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &new); |
5807 | if (error != 0) { | |
5808 | dsl_pool_rele(dp, FTAG); | |
5809 | return (error); | |
5810 | } | |
5811 | error = dsl_dataset_hold(dp, zc->zc_value, FTAG, &old); | |
330d06f9 MA |
5812 | if (error != 0) { |
5813 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5814 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
5815 | return (error); |
5816 | } | |
5817 | ||
5818 | error = dsl_dataset_space_written(old, new, &zc->zc_cookie, | |
5819 | &zc->zc_objset_type, &zc->zc_perm_action); | |
5820 | dsl_dataset_rele(old, FTAG); | |
5821 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5822 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
5823 | return (error); |
5824 | } | |
5825 | ||
5826 | /* | |
6f1ffb06 MA |
5827 | * innvl: { |
5828 | * "firstsnap" -> snapshot name | |
5829 | * } | |
330d06f9 | 5830 | * |
6f1ffb06 MA |
5831 | * outnvl: { |
5832 | * "used" -> space in bytes | |
5833 | * "compressed" -> compressed space in bytes | |
5834 | * "uncompressed" -> uncompressed space in bytes | |
5835 | * } | |
330d06f9 MA |
5836 | */ |
5837 | static int | |
6f1ffb06 | 5838 | zfs_ioc_space_snaps(const char *lastsnap, nvlist_t *innvl, nvlist_t *outnvl) |
330d06f9 MA |
5839 | { |
5840 | int error; | |
13fe0198 | 5841 | dsl_pool_t *dp; |
330d06f9 | 5842 | dsl_dataset_t *new, *old; |
6f1ffb06 MA |
5843 | char *firstsnap; |
5844 | uint64_t used, comp, uncomp; | |
330d06f9 | 5845 | |
6f1ffb06 | 5846 | if (nvlist_lookup_string(innvl, "firstsnap", &firstsnap) != 0) |
2e528b49 | 5847 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 5848 | |
13fe0198 | 5849 | error = dsl_pool_hold(lastsnap, FTAG, &dp); |
330d06f9 MA |
5850 | if (error != 0) |
5851 | return (error); | |
13fe0198 MA |
5852 | |
5853 | error = dsl_dataset_hold(dp, lastsnap, FTAG, &new); | |
71e2fe41 AG |
5854 | if (error == 0 && !new->ds_is_snapshot) { |
5855 | dsl_dataset_rele(new, FTAG); | |
5856 | error = SET_ERROR(EINVAL); | |
5857 | } | |
13fe0198 MA |
5858 | if (error != 0) { |
5859 | dsl_pool_rele(dp, FTAG); | |
5860 | return (error); | |
5861 | } | |
5862 | error = dsl_dataset_hold(dp, firstsnap, FTAG, &old); | |
71e2fe41 AG |
5863 | if (error == 0 && !old->ds_is_snapshot) { |
5864 | dsl_dataset_rele(old, FTAG); | |
5865 | error = SET_ERROR(EINVAL); | |
5866 | } | |
330d06f9 MA |
5867 | if (error != 0) { |
5868 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5869 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
5870 | return (error); |
5871 | } | |
5872 | ||
6f1ffb06 | 5873 | error = dsl_dataset_space_wouldfree(old, new, &used, &comp, &uncomp); |
330d06f9 MA |
5874 | dsl_dataset_rele(old, FTAG); |
5875 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5876 | dsl_pool_rele(dp, FTAG); |
6f1ffb06 MA |
5877 | fnvlist_add_uint64(outnvl, "used", used); |
5878 | fnvlist_add_uint64(outnvl, "compressed", comp); | |
5879 | fnvlist_add_uint64(outnvl, "uncompressed", uncomp); | |
330d06f9 MA |
5880 | return (error); |
5881 | } | |
5882 | ||
34dc7c2f | 5883 | /* |
6f1ffb06 MA |
5884 | * innvl: { |
5885 | * "fd" -> file descriptor to write stream to (int32) | |
5886 | * (optional) "fromsnap" -> full snap name to send an incremental from | |
f1512ee6 MA |
5887 | * (optional) "largeblockok" -> (value ignored) |
5888 | * indicates that blocks > 128KB are permitted | |
9b67f605 MA |
5889 | * (optional) "embedok" -> (value ignored) |
5890 | * presence indicates DRR_WRITE_EMBEDDED records are permitted | |
2aa34383 DK |
5891 | * (optional) "compressok" -> (value ignored) |
5892 | * presence indicates compressed DRR_WRITE records are permitted | |
b5256303 TC |
5893 | * (optional) "rawok" -> (value ignored) |
5894 | * presence indicates raw encrypted records should be used. | |
47dfff3b MA |
5895 | * (optional) "resume_object" and "resume_offset" -> (uint64) |
5896 | * if present, resume send stream from specified object and offset. | |
6f1ffb06 MA |
5897 | * } |
5898 | * | |
5899 | * outnvl is unused | |
34dc7c2f | 5900 | */ |
6f1ffb06 MA |
5901 | /* ARGSUSED */ |
5902 | static int | |
5903 | zfs_ioc_send_new(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) | |
5904 | { | |
6f1ffb06 MA |
5905 | int error; |
5906 | offset_t off; | |
13fe0198 | 5907 | char *fromname = NULL; |
6f1ffb06 | 5908 | int fd; |
13fe0198 | 5909 | file_t *fp; |
f1512ee6 | 5910 | boolean_t largeblockok; |
9b67f605 | 5911 | boolean_t embedok; |
2aa34383 | 5912 | boolean_t compressok; |
b5256303 | 5913 | boolean_t rawok; |
47dfff3b MA |
5914 | uint64_t resumeobj = 0; |
5915 | uint64_t resumeoff = 0; | |
6f1ffb06 MA |
5916 | |
5917 | error = nvlist_lookup_int32(innvl, "fd", &fd); | |
5918 | if (error != 0) | |
2e528b49 | 5919 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 5920 | |
13fe0198 | 5921 | (void) nvlist_lookup_string(innvl, "fromsnap", &fromname); |
6f1ffb06 | 5922 | |
f1512ee6 | 5923 | largeblockok = nvlist_exists(innvl, "largeblockok"); |
9b67f605 | 5924 | embedok = nvlist_exists(innvl, "embedok"); |
2aa34383 | 5925 | compressok = nvlist_exists(innvl, "compressok"); |
b5256303 | 5926 | rawok = nvlist_exists(innvl, "rawok"); |
9b67f605 | 5927 | |
47dfff3b MA |
5928 | (void) nvlist_lookup_uint64(innvl, "resume_object", &resumeobj); |
5929 | (void) nvlist_lookup_uint64(innvl, "resume_offset", &resumeoff); | |
5930 | ||
13fe0198 | 5931 | if ((fp = getf(fd)) == NULL) |
2e528b49 | 5932 | return (SET_ERROR(EBADF)); |
6f1ffb06 MA |
5933 | |
5934 | off = fp->f_offset; | |
2aa34383 | 5935 | error = dmu_send(snapname, fromname, embedok, largeblockok, compressok, |
b5256303 | 5936 | rawok, fd, resumeobj, resumeoff, fp->f_vnode, &off); |
6f1ffb06 MA |
5937 | |
5938 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
5939 | fp->f_offset = off; | |
13fe0198 | 5940 | |
6f1ffb06 | 5941 | releasef(fd); |
6f1ffb06 MA |
5942 | return (error); |
5943 | } | |
5944 | ||
5945 | /* | |
5946 | * Determine approximately how large a zfs send stream will be -- the number | |
5947 | * of bytes that will be written to the fd supplied to zfs_ioc_send_new(). | |
5948 | * | |
5949 | * innvl: { | |
5dc8b736 MG |
5950 | * (optional) "from" -> full snap or bookmark name to send an incremental |
5951 | * from | |
2aa34383 DK |
5952 | * (optional) "largeblockok" -> (value ignored) |
5953 | * indicates that blocks > 128KB are permitted | |
5954 | * (optional) "embedok" -> (value ignored) | |
5955 | * presence indicates DRR_WRITE_EMBEDDED records are permitted | |
5956 | * (optional) "compressok" -> (value ignored) | |
5957 | * presence indicates compressed DRR_WRITE records are permitted | |
cf7684bc | 5958 | * (optional) "rawok" -> (value ignored) |
5959 | * presence indicates raw encrypted records should be used. | |
6f1ffb06 MA |
5960 | * } |
5961 | * | |
5962 | * outnvl: { | |
5963 | * "space" -> bytes of space (uint64) | |
5964 | * } | |
5965 | */ | |
5966 | static int | |
5967 | zfs_ioc_send_space(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) | |
5968 | { | |
13fe0198 | 5969 | dsl_pool_t *dp; |
13fe0198 | 5970 | dsl_dataset_t *tosnap; |
6f1ffb06 MA |
5971 | int error; |
5972 | char *fromname; | |
2aa34383 | 5973 | boolean_t compressok; |
b5256303 | 5974 | boolean_t rawok; |
6f1ffb06 MA |
5975 | uint64_t space; |
5976 | ||
13fe0198 MA |
5977 | error = dsl_pool_hold(snapname, FTAG, &dp); |
5978 | if (error != 0) | |
6f1ffb06 MA |
5979 | return (error); |
5980 | ||
13fe0198 MA |
5981 | error = dsl_dataset_hold(dp, snapname, FTAG, &tosnap); |
5982 | if (error != 0) { | |
5983 | dsl_pool_rele(dp, FTAG); | |
5984 | return (error); | |
5985 | } | |
5986 | ||
2aa34383 | 5987 | compressok = nvlist_exists(innvl, "compressok"); |
b5256303 | 5988 | rawok = nvlist_exists(innvl, "rawok"); |
2aa34383 | 5989 | |
5dc8b736 | 5990 | error = nvlist_lookup_string(innvl, "from", &fromname); |
6f1ffb06 | 5991 | if (error == 0) { |
5dc8b736 MG |
5992 | if (strchr(fromname, '@') != NULL) { |
5993 | /* | |
5994 | * If from is a snapshot, hold it and use the more | |
5995 | * efficient dmu_send_estimate to estimate send space | |
5996 | * size using deadlists. | |
5997 | */ | |
5998 | dsl_dataset_t *fromsnap; | |
5999 | error = dsl_dataset_hold(dp, fromname, FTAG, &fromsnap); | |
6000 | if (error != 0) | |
6001 | goto out; | |
b5256303 TC |
6002 | error = dmu_send_estimate(tosnap, fromsnap, |
6003 | compressok || rawok, &space); | |
5dc8b736 MG |
6004 | dsl_dataset_rele(fromsnap, FTAG); |
6005 | } else if (strchr(fromname, '#') != NULL) { | |
6006 | /* | |
6007 | * If from is a bookmark, fetch the creation TXG of the | |
6008 | * snapshot it was created from and use that to find | |
6009 | * blocks that were born after it. | |
6010 | */ | |
6011 | zfs_bookmark_phys_t frombm; | |
6012 | ||
6013 | error = dsl_bookmark_lookup(dp, fromname, tosnap, | |
6014 | &frombm); | |
6015 | if (error != 0) | |
6016 | goto out; | |
6017 | error = dmu_send_estimate_from_txg(tosnap, | |
b5256303 TC |
6018 | frombm.zbm_creation_txg, compressok || rawok, |
6019 | &space); | |
5dc8b736 MG |
6020 | } else { |
6021 | /* | |
6022 | * from is not properly formatted as a snapshot or | |
6023 | * bookmark | |
6024 | */ | |
6025 | error = SET_ERROR(EINVAL); | |
6026 | goto out; | |
6f1ffb06 | 6027 | } |
5dc8b736 | 6028 | } else { |
d8fdfc2d BB |
6029 | /* |
6030 | * If estimating the size of a full send, use dmu_send_estimate. | |
6031 | */ | |
b5256303 TC |
6032 | error = dmu_send_estimate(tosnap, NULL, compressok || rawok, |
6033 | &space); | |
6f1ffb06 MA |
6034 | } |
6035 | ||
6f1ffb06 MA |
6036 | fnvlist_add_uint64(outnvl, "space", space); |
6037 | ||
5dc8b736 | 6038 | out: |
13fe0198 MA |
6039 | dsl_dataset_rele(tosnap, FTAG); |
6040 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
6041 | return (error); |
6042 | } | |
6043 | ||
bec1067d AP |
6044 | /* |
6045 | * Sync the currently open TXG to disk for the specified pool. | |
6046 | * This is somewhat similar to 'zfs_sync()'. | |
6047 | * For cases that do not result in error this ioctl will wait for | |
6048 | * the currently open TXG to commit before returning back to the caller. | |
6049 | * | |
6050 | * innvl: { | |
6051 | * "force" -> when true, force uberblock update even if there is no dirty data. | |
6052 | * In addition this will cause the vdev configuration to be written | |
6053 | * out including updating the zpool cache file. (boolean_t) | |
6054 | * } | |
6055 | * | |
6056 | * onvl is unused | |
6057 | */ | |
6058 | /* ARGSUSED */ | |
6059 | static int | |
6060 | zfs_ioc_pool_sync(const char *pool, nvlist_t *innvl, nvlist_t *onvl) | |
6061 | { | |
6062 | int err; | |
05f85a6a | 6063 | boolean_t force = B_FALSE; |
bec1067d AP |
6064 | spa_t *spa; |
6065 | ||
6066 | if ((err = spa_open(pool, &spa, FTAG)) != 0) | |
6067 | return (err); | |
6068 | ||
05f85a6a CC |
6069 | if (innvl) { |
6070 | if (nvlist_lookup_boolean_value(innvl, "force", &force) != 0) { | |
6071 | err = SET_ERROR(EINVAL); | |
6072 | goto out; | |
6073 | } | |
6074 | } | |
6075 | ||
bec1067d AP |
6076 | if (force) { |
6077 | spa_config_enter(spa, SCL_CONFIG, FTAG, RW_WRITER); | |
6078 | vdev_config_dirty(spa->spa_root_vdev); | |
6079 | spa_config_exit(spa, SCL_CONFIG, FTAG); | |
6080 | } | |
6081 | txg_wait_synced(spa_get_dsl(spa), 0); | |
05f85a6a | 6082 | out: |
bec1067d AP |
6083 | spa_close(spa, FTAG); |
6084 | ||
6085 | return (err); | |
6086 | } | |
6087 | ||
b5256303 TC |
6088 | /* |
6089 | * Load a user's wrapping key into the kernel. | |
6090 | * innvl: { | |
6091 | * "hidden_args" -> { "wkeydata" -> value } | |
6092 | * raw uint8_t array of encryption wrapping key data (32 bytes) | |
6093 | * (optional) "noop" -> (value ignored) | |
6094 | * presence indicated key should only be verified, not loaded | |
6095 | * } | |
6096 | */ | |
6097 | /* ARGSUSED */ | |
6098 | static int | |
6099 | zfs_ioc_load_key(const char *dsname, nvlist_t *innvl, nvlist_t *outnvl) | |
6100 | { | |
6101 | int ret; | |
6102 | dsl_crypto_params_t *dcp = NULL; | |
6103 | nvlist_t *hidden_args; | |
6104 | boolean_t noop = nvlist_exists(innvl, "noop"); | |
6105 | ||
6106 | if (strchr(dsname, '@') != NULL || strchr(dsname, '%') != NULL) { | |
6107 | ret = SET_ERROR(EINVAL); | |
6108 | goto error; | |
6109 | } | |
6110 | ||
6111 | ret = nvlist_lookup_nvlist(innvl, ZPOOL_HIDDEN_ARGS, &hidden_args); | |
6112 | if (ret != 0) { | |
6113 | ret = SET_ERROR(EINVAL); | |
6114 | goto error; | |
6115 | } | |
6116 | ||
6117 | ret = dsl_crypto_params_create_nvlist(DCP_CMD_NONE, NULL, | |
6118 | hidden_args, &dcp); | |
6119 | if (ret != 0) | |
6120 | goto error; | |
6121 | ||
6122 | ret = spa_keystore_load_wkey(dsname, dcp, noop); | |
6123 | if (ret != 0) | |
6124 | goto error; | |
6125 | ||
6126 | dsl_crypto_params_free(dcp, noop); | |
6127 | ||
6128 | return (0); | |
6129 | ||
6130 | error: | |
6131 | dsl_crypto_params_free(dcp, B_TRUE); | |
6132 | return (ret); | |
6133 | } | |
6134 | ||
6135 | /* | |
6136 | * Unload a user's wrapping key from the kernel. | |
6137 | * Both innvl and outnvl are unused. | |
6138 | */ | |
6139 | /* ARGSUSED */ | |
6140 | static int | |
6141 | zfs_ioc_unload_key(const char *dsname, nvlist_t *innvl, nvlist_t *outnvl) | |
6142 | { | |
6143 | int ret = 0; | |
6144 | ||
6145 | if (strchr(dsname, '@') != NULL || strchr(dsname, '%') != NULL) { | |
6146 | ret = (SET_ERROR(EINVAL)); | |
6147 | goto out; | |
6148 | } | |
6149 | ||
6150 | ret = spa_keystore_unload_wkey(dsname); | |
6151 | if (ret != 0) | |
6152 | goto out; | |
6153 | ||
6154 | out: | |
6155 | return (ret); | |
6156 | } | |
6157 | ||
6158 | /* | |
6159 | * Changes a user's wrapping key used to decrypt a dataset. The keyformat, | |
6160 | * keylocation, pbkdf2salt, and pbkdf2iters properties can also be specified | |
6161 | * here to change how the key is derived in userspace. | |
6162 | * | |
6163 | * innvl: { | |
6164 | * "hidden_args" (optional) -> { "wkeydata" -> value } | |
6165 | * raw uint8_t array of new encryption wrapping key data (32 bytes) | |
6166 | * "props" (optional) -> { prop -> value } | |
6167 | * } | |
6168 | * | |
6169 | * outnvl is unused | |
6170 | */ | |
6171 | /* ARGSUSED */ | |
6172 | static int | |
6173 | zfs_ioc_change_key(const char *dsname, nvlist_t *innvl, nvlist_t *outnvl) | |
6174 | { | |
6175 | int ret; | |
6176 | uint64_t cmd = DCP_CMD_NONE; | |
6177 | dsl_crypto_params_t *dcp = NULL; | |
6178 | nvlist_t *args = NULL, *hidden_args = NULL; | |
6179 | ||
6180 | if (strchr(dsname, '@') != NULL || strchr(dsname, '%') != NULL) { | |
6181 | ret = (SET_ERROR(EINVAL)); | |
6182 | goto error; | |
6183 | } | |
6184 | ||
6185 | (void) nvlist_lookup_uint64(innvl, "crypt_cmd", &cmd); | |
6186 | (void) nvlist_lookup_nvlist(innvl, "props", &args); | |
6187 | (void) nvlist_lookup_nvlist(innvl, ZPOOL_HIDDEN_ARGS, &hidden_args); | |
6188 | ||
6189 | ret = dsl_crypto_params_create_nvlist(cmd, args, hidden_args, &dcp); | |
6190 | if (ret != 0) | |
6191 | goto error; | |
6192 | ||
6193 | ret = spa_keystore_change_key(dsname, dcp); | |
6194 | if (ret != 0) | |
6195 | goto error; | |
6196 | ||
6197 | dsl_crypto_params_free(dcp, B_FALSE); | |
6198 | ||
6199 | return (0); | |
6200 | ||
6201 | error: | |
6202 | dsl_crypto_params_free(dcp, B_TRUE); | |
6203 | return (ret); | |
6204 | } | |
6205 | ||
6f1ffb06 MA |
6206 | static zfs_ioc_vec_t zfs_ioc_vec[ZFS_IOC_LAST - ZFS_IOC_FIRST]; |
6207 | ||
6208 | static void | |
6209 | zfs_ioctl_register_legacy(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
6210 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, | |
6211 | boolean_t log_history, zfs_ioc_poolcheck_t pool_check) | |
6212 | { | |
6213 | zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; | |
6214 | ||
6215 | ASSERT3U(ioc, >=, ZFS_IOC_FIRST); | |
6216 | ASSERT3U(ioc, <, ZFS_IOC_LAST); | |
6217 | ASSERT3P(vec->zvec_legacy_func, ==, NULL); | |
6218 | ASSERT3P(vec->zvec_func, ==, NULL); | |
6219 | ||
6220 | vec->zvec_legacy_func = func; | |
6221 | vec->zvec_secpolicy = secpolicy; | |
6222 | vec->zvec_namecheck = namecheck; | |
6223 | vec->zvec_allow_log = log_history; | |
6224 | vec->zvec_pool_check = pool_check; | |
6225 | } | |
6226 | ||
6227 | /* | |
6228 | * See the block comment at the beginning of this file for details on | |
6229 | * each argument to this function. | |
6230 | */ | |
6231 | static void | |
6232 | zfs_ioctl_register(const char *name, zfs_ioc_t ioc, zfs_ioc_func_t *func, | |
6233 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, | |
6234 | zfs_ioc_poolcheck_t pool_check, boolean_t smush_outnvlist, | |
6235 | boolean_t allow_log) | |
6236 | { | |
6237 | zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; | |
6238 | ||
6239 | ASSERT3U(ioc, >=, ZFS_IOC_FIRST); | |
6240 | ASSERT3U(ioc, <, ZFS_IOC_LAST); | |
6241 | ASSERT3P(vec->zvec_legacy_func, ==, NULL); | |
6242 | ASSERT3P(vec->zvec_func, ==, NULL); | |
6243 | ||
6244 | /* if we are logging, the name must be valid */ | |
6245 | ASSERT(!allow_log || namecheck != NO_NAME); | |
6246 | ||
6247 | vec->zvec_name = name; | |
6248 | vec->zvec_func = func; | |
6249 | vec->zvec_secpolicy = secpolicy; | |
6250 | vec->zvec_namecheck = namecheck; | |
6251 | vec->zvec_pool_check = pool_check; | |
6252 | vec->zvec_smush_outnvlist = smush_outnvlist; | |
6253 | vec->zvec_allow_log = allow_log; | |
6254 | } | |
6255 | ||
6256 | static void | |
6257 | zfs_ioctl_register_pool(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
6258 | zfs_secpolicy_func_t *secpolicy, boolean_t log_history, | |
6259 | zfs_ioc_poolcheck_t pool_check) | |
6260 | { | |
6261 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
6262 | POOL_NAME, log_history, pool_check); | |
6263 | } | |
6264 | ||
6265 | static void | |
6266 | zfs_ioctl_register_dataset_nolog(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
6267 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_poolcheck_t pool_check) | |
6268 | { | |
6269 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
6270 | DATASET_NAME, B_FALSE, pool_check); | |
6271 | } | |
6272 | ||
6273 | static void | |
6274 | zfs_ioctl_register_pool_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) | |
6275 | { | |
6276 | zfs_ioctl_register_legacy(ioc, func, zfs_secpolicy_config, | |
6277 | POOL_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
6278 | } | |
6279 | ||
6280 | static void | |
6281 | zfs_ioctl_register_pool_meta(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
6282 | zfs_secpolicy_func_t *secpolicy) | |
6283 | { | |
6284 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
6285 | NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
6286 | } | |
6287 | ||
6288 | static void | |
6289 | zfs_ioctl_register_dataset_read_secpolicy(zfs_ioc_t ioc, | |
6290 | zfs_ioc_legacy_func_t *func, zfs_secpolicy_func_t *secpolicy) | |
6291 | { | |
6292 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
6293 | DATASET_NAME, B_FALSE, POOL_CHECK_SUSPENDED); | |
6294 | } | |
6295 | ||
6296 | static void | |
6297 | zfs_ioctl_register_dataset_read(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) | |
6298 | { | |
6299 | zfs_ioctl_register_dataset_read_secpolicy(ioc, func, | |
6300 | zfs_secpolicy_read); | |
6301 | } | |
6302 | ||
6303 | static void | |
6304 | zfs_ioctl_register_dataset_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
e9aa730c | 6305 | zfs_secpolicy_func_t *secpolicy) |
6f1ffb06 MA |
6306 | { |
6307 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
6308 | DATASET_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
6309 | } | |
6310 | ||
6311 | static void | |
6312 | zfs_ioctl_init(void) | |
6313 | { | |
6314 | zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT, | |
6315 | zfs_ioc_snapshot, zfs_secpolicy_snapshot, POOL_NAME, | |
6316 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
6317 | ||
6318 | zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY, | |
6319 | zfs_ioc_log_history, zfs_secpolicy_log_history, NO_NAME, | |
6320 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE); | |
6321 | ||
6322 | zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS, | |
6323 | zfs_ioc_space_snaps, zfs_secpolicy_read, DATASET_NAME, | |
6324 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
6325 | ||
6326 | zfs_ioctl_register("send", ZFS_IOC_SEND_NEW, | |
6327 | zfs_ioc_send_new, zfs_secpolicy_send_new, DATASET_NAME, | |
6328 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
6329 | ||
6330 | zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE, | |
6331 | zfs_ioc_send_space, zfs_secpolicy_read, DATASET_NAME, | |
6332 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
6333 | ||
6334 | zfs_ioctl_register("create", ZFS_IOC_CREATE, | |
6335 | zfs_ioc_create, zfs_secpolicy_create_clone, DATASET_NAME, | |
6336 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
6337 | ||
6338 | zfs_ioctl_register("clone", ZFS_IOC_CLONE, | |
6339 | zfs_ioc_clone, zfs_secpolicy_create_clone, DATASET_NAME, | |
6340 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
6341 | ||
6342 | zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS, | |
6343 | zfs_ioc_destroy_snaps, zfs_secpolicy_destroy_snaps, POOL_NAME, | |
6344 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
6345 | ||
13fe0198 MA |
6346 | zfs_ioctl_register("hold", ZFS_IOC_HOLD, |
6347 | zfs_ioc_hold, zfs_secpolicy_hold, POOL_NAME, | |
6348 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
6349 | zfs_ioctl_register("release", ZFS_IOC_RELEASE, | |
6350 | zfs_ioc_release, zfs_secpolicy_release, POOL_NAME, | |
6351 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
6352 | ||
6353 | zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS, | |
6354 | zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME, | |
6355 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
6356 | ||
46ba1e59 MA |
6357 | zfs_ioctl_register("rollback", ZFS_IOC_ROLLBACK, |
6358 | zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME, | |
6359 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_TRUE); | |
6360 | ||
da536844 MA |
6361 | zfs_ioctl_register("bookmark", ZFS_IOC_BOOKMARK, |
6362 | zfs_ioc_bookmark, zfs_secpolicy_bookmark, POOL_NAME, | |
6363 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
6364 | ||
6365 | zfs_ioctl_register("get_bookmarks", ZFS_IOC_GET_BOOKMARKS, | |
6366 | zfs_ioc_get_bookmarks, zfs_secpolicy_read, DATASET_NAME, | |
6367 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
6368 | ||
6369 | zfs_ioctl_register("destroy_bookmarks", ZFS_IOC_DESTROY_BOOKMARKS, | |
6370 | zfs_ioc_destroy_bookmarks, zfs_secpolicy_destroy_bookmarks, | |
6371 | POOL_NAME, | |
6372 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
6373 | ||
43e52edd BB |
6374 | zfs_ioctl_register("receive", ZFS_IOC_RECV_NEW, |
6375 | zfs_ioc_recv_new, zfs_secpolicy_recv_new, DATASET_NAME, | |
6376 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
b5256303 TC |
6377 | zfs_ioctl_register("load-key", ZFS_IOC_LOAD_KEY, |
6378 | zfs_ioc_load_key, zfs_secpolicy_load_key, | |
6379 | DATASET_NAME, POOL_CHECK_SUSPENDED, B_TRUE, B_TRUE); | |
6380 | zfs_ioctl_register("unload-key", ZFS_IOC_UNLOAD_KEY, | |
6381 | zfs_ioc_unload_key, zfs_secpolicy_load_key, | |
6382 | DATASET_NAME, POOL_CHECK_SUSPENDED, B_TRUE, B_TRUE); | |
6383 | zfs_ioctl_register("change-key", ZFS_IOC_CHANGE_KEY, | |
6384 | zfs_ioc_change_key, zfs_secpolicy_change_key, | |
6385 | DATASET_NAME, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, | |
6386 | B_TRUE, B_TRUE); | |
43e52edd | 6387 | |
bec1067d AP |
6388 | zfs_ioctl_register("sync", ZFS_IOC_POOL_SYNC, |
6389 | zfs_ioc_pool_sync, zfs_secpolicy_none, POOL_NAME, | |
6390 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE); | |
d3f2cd7e AB |
6391 | zfs_ioctl_register("reopen", ZFS_IOC_POOL_REOPEN, zfs_ioc_pool_reopen, |
6392 | zfs_secpolicy_config, POOL_NAME, POOL_CHECK_SUSPENDED, B_TRUE, | |
6393 | B_TRUE); | |
bec1067d | 6394 | |
d99a0153 CW |
6395 | zfs_ioctl_register("channel_program", ZFS_IOC_CHANNEL_PROGRAM, |
6396 | zfs_ioc_channel_program, zfs_secpolicy_config, | |
6397 | POOL_NAME, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, | |
6398 | B_TRUE); | |
6399 | ||
6f1ffb06 MA |
6400 | /* IOCTLS that use the legacy function signature */ |
6401 | ||
6402 | zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE, zfs_ioc_pool_freeze, | |
6403 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_READONLY); | |
6404 | ||
6405 | zfs_ioctl_register_pool(ZFS_IOC_POOL_CREATE, zfs_ioc_pool_create, | |
6406 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); | |
6407 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SCAN, | |
6408 | zfs_ioc_pool_scan); | |
6409 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_UPGRADE, | |
6410 | zfs_ioc_pool_upgrade); | |
6411 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ADD, | |
6412 | zfs_ioc_vdev_add); | |
6413 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_REMOVE, | |
6414 | zfs_ioc_vdev_remove); | |
6415 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SET_STATE, | |
6416 | zfs_ioc_vdev_set_state); | |
6417 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ATTACH, | |
6418 | zfs_ioc_vdev_attach); | |
6419 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_DETACH, | |
6420 | zfs_ioc_vdev_detach); | |
6421 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETPATH, | |
6422 | zfs_ioc_vdev_setpath); | |
6423 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETFRU, | |
6424 | zfs_ioc_vdev_setfru); | |
6425 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SET_PROPS, | |
6426 | zfs_ioc_pool_set_props); | |
6427 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SPLIT, | |
6428 | zfs_ioc_vdev_split); | |
6429 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_REGUID, | |
6430 | zfs_ioc_pool_reguid); | |
6431 | ||
6432 | zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_CONFIGS, | |
6433 | zfs_ioc_pool_configs, zfs_secpolicy_none); | |
6434 | zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_TRYIMPORT, | |
6435 | zfs_ioc_pool_tryimport, zfs_secpolicy_config); | |
6436 | zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_FAULT, | |
6437 | zfs_ioc_inject_fault, zfs_secpolicy_inject); | |
6438 | zfs_ioctl_register_pool_meta(ZFS_IOC_CLEAR_FAULT, | |
6439 | zfs_ioc_clear_fault, zfs_secpolicy_inject); | |
6440 | zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_LIST_NEXT, | |
6441 | zfs_ioc_inject_list_next, zfs_secpolicy_inject); | |
6442 | ||
6443 | /* | |
6444 | * pool destroy, and export don't log the history as part of | |
6445 | * zfsdev_ioctl, but rather zfs_ioc_pool_export | |
6446 | * does the logging of those commands. | |
6447 | */ | |
6448 | zfs_ioctl_register_pool(ZFS_IOC_POOL_DESTROY, zfs_ioc_pool_destroy, | |
87a63dd7 | 6449 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED); |
6f1ffb06 | 6450 | zfs_ioctl_register_pool(ZFS_IOC_POOL_EXPORT, zfs_ioc_pool_export, |
87a63dd7 | 6451 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED); |
6f1ffb06 MA |
6452 | |
6453 | zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS, zfs_ioc_pool_stats, | |
6454 | zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); | |
6455 | zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS, zfs_ioc_pool_get_props, | |
6456 | zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); | |
6457 | ||
6458 | zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG, zfs_ioc_error_log, | |
6459 | zfs_secpolicy_inject, B_FALSE, POOL_CHECK_SUSPENDED); | |
6460 | zfs_ioctl_register_pool(ZFS_IOC_DSOBJ_TO_DSNAME, | |
6461 | zfs_ioc_dsobj_to_dsname, | |
6462 | zfs_secpolicy_diff, B_FALSE, POOL_CHECK_SUSPENDED); | |
6463 | zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_HISTORY, | |
6464 | zfs_ioc_pool_get_history, | |
6465 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED); | |
6466 | ||
6467 | zfs_ioctl_register_pool(ZFS_IOC_POOL_IMPORT, zfs_ioc_pool_import, | |
6468 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); | |
6469 | ||
6470 | zfs_ioctl_register_pool(ZFS_IOC_CLEAR, zfs_ioc_clear, | |
92e43c17 | 6471 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_READONLY); |
6f1ffb06 MA |
6472 | |
6473 | zfs_ioctl_register_dataset_read(ZFS_IOC_SPACE_WRITTEN, | |
6474 | zfs_ioc_space_written); | |
6f1ffb06 MA |
6475 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_RECVD_PROPS, |
6476 | zfs_ioc_objset_recvd_props); | |
6477 | zfs_ioctl_register_dataset_read(ZFS_IOC_NEXT_OBJ, | |
6478 | zfs_ioc_next_obj); | |
6479 | zfs_ioctl_register_dataset_read(ZFS_IOC_GET_FSACL, | |
6480 | zfs_ioc_get_fsacl); | |
6481 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_STATS, | |
6482 | zfs_ioc_objset_stats); | |
6483 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_ZPLPROPS, | |
6484 | zfs_ioc_objset_zplprops); | |
6485 | zfs_ioctl_register_dataset_read(ZFS_IOC_DATASET_LIST_NEXT, | |
6486 | zfs_ioc_dataset_list_next); | |
6487 | zfs_ioctl_register_dataset_read(ZFS_IOC_SNAPSHOT_LIST_NEXT, | |
6488 | zfs_ioc_snapshot_list_next); | |
6489 | zfs_ioctl_register_dataset_read(ZFS_IOC_SEND_PROGRESS, | |
6490 | zfs_ioc_send_progress); | |
6491 | ||
6492 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_DIFF, | |
6493 | zfs_ioc_diff, zfs_secpolicy_diff); | |
6494 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_STATS, | |
6495 | zfs_ioc_obj_to_stats, zfs_secpolicy_diff); | |
6496 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_PATH, | |
6497 | zfs_ioc_obj_to_path, zfs_secpolicy_diff); | |
6498 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_ONE, | |
6499 | zfs_ioc_userspace_one, zfs_secpolicy_userspace_one); | |
6500 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_MANY, | |
6501 | zfs_ioc_userspace_many, zfs_secpolicy_userspace_many); | |
6502 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_SEND, | |
6503 | zfs_ioc_send, zfs_secpolicy_send); | |
6504 | ||
6505 | zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_PROP, zfs_ioc_set_prop, | |
6506 | zfs_secpolicy_none); | |
6507 | zfs_ioctl_register_dataset_modify(ZFS_IOC_DESTROY, zfs_ioc_destroy, | |
6508 | zfs_secpolicy_destroy); | |
6f1ffb06 MA |
6509 | zfs_ioctl_register_dataset_modify(ZFS_IOC_RENAME, zfs_ioc_rename, |
6510 | zfs_secpolicy_rename); | |
6511 | zfs_ioctl_register_dataset_modify(ZFS_IOC_RECV, zfs_ioc_recv, | |
6512 | zfs_secpolicy_recv); | |
6513 | zfs_ioctl_register_dataset_modify(ZFS_IOC_PROMOTE, zfs_ioc_promote, | |
6514 | zfs_secpolicy_promote); | |
6f1ffb06 MA |
6515 | zfs_ioctl_register_dataset_modify(ZFS_IOC_INHERIT_PROP, |
6516 | zfs_ioc_inherit_prop, zfs_secpolicy_inherit_prop); | |
6517 | zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_FSACL, zfs_ioc_set_fsacl, | |
6518 | zfs_secpolicy_set_fsacl); | |
6519 | ||
6520 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_SHARE, zfs_ioc_share, | |
6521 | zfs_secpolicy_share, POOL_CHECK_NONE); | |
6522 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_SMB_ACL, zfs_ioc_smb_acl, | |
6523 | zfs_secpolicy_smb_acl, POOL_CHECK_NONE); | |
6524 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_USERSPACE_UPGRADE, | |
6525 | zfs_ioc_userspace_upgrade, zfs_secpolicy_userspace_upgrade, | |
6526 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
6527 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_TMP_SNAPSHOT, | |
6528 | zfs_ioc_tmp_snapshot, zfs_secpolicy_tmp_snapshot, | |
6529 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
6530 | ||
6531 | /* | |
ba6a2402 | 6532 | * ZoL functions |
6f1ffb06 | 6533 | */ |
6f1ffb06 MA |
6534 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_NEXT, zfs_ioc_events_next, |
6535 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
6536 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_CLEAR, zfs_ioc_events_clear, | |
6537 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
75e3ff58 BB |
6538 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_SEEK, zfs_ioc_events_seek, |
6539 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
6f1ffb06 | 6540 | } |
34dc7c2f | 6541 | |
9babb374 | 6542 | int |
572e2857 BB |
6543 | pool_status_check(const char *name, zfs_ioc_namecheck_t type, |
6544 | zfs_ioc_poolcheck_t check) | |
9babb374 BB |
6545 | { |
6546 | spa_t *spa; | |
6547 | int error; | |
6548 | ||
6549 | ASSERT(type == POOL_NAME || type == DATASET_NAME); | |
6550 | ||
572e2857 BB |
6551 | if (check & POOL_CHECK_NONE) |
6552 | return (0); | |
6553 | ||
9babb374 BB |
6554 | error = spa_open(name, &spa, FTAG); |
6555 | if (error == 0) { | |
572e2857 | 6556 | if ((check & POOL_CHECK_SUSPENDED) && spa_suspended(spa)) |
2e528b49 | 6557 | error = SET_ERROR(EAGAIN); |
572e2857 | 6558 | else if ((check & POOL_CHECK_READONLY) && !spa_writeable(spa)) |
2e528b49 | 6559 | error = SET_ERROR(EROFS); |
9babb374 BB |
6560 | spa_close(spa, FTAG); |
6561 | } | |
6562 | return (error); | |
6563 | } | |
6564 | ||
325f0235 BB |
6565 | static void * |
6566 | zfsdev_get_state_impl(minor_t minor, enum zfsdev_state_type which) | |
6567 | { | |
6568 | zfsdev_state_t *zs; | |
6569 | ||
3937ab20 | 6570 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { |
325f0235 | 6571 | if (zs->zs_minor == minor) { |
3937ab20 | 6572 | smp_rmb(); |
325f0235 | 6573 | switch (which) { |
d1d7e268 MK |
6574 | case ZST_ONEXIT: |
6575 | return (zs->zs_onexit); | |
6576 | case ZST_ZEVENT: | |
6577 | return (zs->zs_zevent); | |
6578 | case ZST_ALL: | |
6579 | return (zs); | |
325f0235 BB |
6580 | } |
6581 | } | |
6582 | } | |
6583 | ||
d1d7e268 | 6584 | return (NULL); |
325f0235 BB |
6585 | } |
6586 | ||
6587 | void * | |
6588 | zfsdev_get_state(minor_t minor, enum zfsdev_state_type which) | |
6589 | { | |
6590 | void *ptr; | |
6591 | ||
325f0235 | 6592 | ptr = zfsdev_get_state_impl(minor, which); |
325f0235 | 6593 | |
d1d7e268 | 6594 | return (ptr); |
325f0235 BB |
6595 | } |
6596 | ||
72540ea3 RY |
6597 | int |
6598 | zfsdev_getminor(struct file *filp, minor_t *minorp) | |
325f0235 | 6599 | { |
72540ea3 RY |
6600 | zfsdev_state_t *zs, *fpd; |
6601 | ||
325f0235 | 6602 | ASSERT(filp != NULL); |
72540ea3 RY |
6603 | ASSERT(!MUTEX_HELD(&zfsdev_state_lock)); |
6604 | ||
6605 | fpd = filp->private_data; | |
6606 | if (fpd == NULL) | |
ecb2b7dc | 6607 | return (SET_ERROR(EBADF)); |
72540ea3 RY |
6608 | |
6609 | mutex_enter(&zfsdev_state_lock); | |
6610 | ||
6611 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { | |
6612 | ||
6613 | if (zs->zs_minor == -1) | |
6614 | continue; | |
6615 | ||
6616 | if (fpd == zs) { | |
6617 | *minorp = fpd->zs_minor; | |
6618 | mutex_exit(&zfsdev_state_lock); | |
6619 | return (0); | |
6620 | } | |
6621 | } | |
6622 | ||
6623 | mutex_exit(&zfsdev_state_lock); | |
325f0235 | 6624 | |
ecb2b7dc | 6625 | return (SET_ERROR(EBADF)); |
325f0235 BB |
6626 | } |
6627 | ||
572e2857 | 6628 | /* |
325f0235 BB |
6629 | * Find a free minor number. The zfsdev_state_list is expected to |
6630 | * be short since it is only a list of currently open file handles. | |
572e2857 BB |
6631 | */ |
6632 | minor_t | |
6633 | zfsdev_minor_alloc(void) | |
6634 | { | |
325f0235 | 6635 | static minor_t last_minor = 0; |
572e2857 BB |
6636 | minor_t m; |
6637 | ||
6638 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
6639 | ||
6640 | for (m = last_minor + 1; m != last_minor; m++) { | |
6641 | if (m > ZFSDEV_MAX_MINOR) | |
6642 | m = 1; | |
325f0235 | 6643 | if (zfsdev_get_state_impl(m, ZST_ALL) == NULL) { |
572e2857 BB |
6644 | last_minor = m; |
6645 | return (m); | |
6646 | } | |
6647 | } | |
6648 | ||
6649 | return (0); | |
6650 | } | |
6651 | ||
6652 | static int | |
325f0235 | 6653 | zfsdev_state_init(struct file *filp) |
572e2857 | 6654 | { |
3937ab20 | 6655 | zfsdev_state_t *zs, *zsprev = NULL; |
572e2857 | 6656 | minor_t minor; |
3937ab20 | 6657 | boolean_t newzs = B_FALSE; |
572e2857 BB |
6658 | |
6659 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
572e2857 | 6660 | |
d1d7e268 MK |
6661 | minor = zfsdev_minor_alloc(); |
6662 | if (minor == 0) | |
6663 | return (SET_ERROR(ENXIO)); | |
325f0235 | 6664 | |
3937ab20 TC |
6665 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { |
6666 | if (zs->zs_minor == -1) | |
6667 | break; | |
6668 | zsprev = zs; | |
6669 | } | |
6670 | ||
6671 | if (!zs) { | |
6672 | zs = kmem_zalloc(sizeof (zfsdev_state_t), KM_SLEEP); | |
6673 | newzs = B_TRUE; | |
6674 | } | |
572e2857 | 6675 | |
325f0235 | 6676 | zs->zs_file = filp; |
325f0235 | 6677 | filp->private_data = zs; |
572e2857 | 6678 | |
325f0235 BB |
6679 | zfs_onexit_init((zfs_onexit_t **)&zs->zs_onexit); |
6680 | zfs_zevent_init((zfs_zevent_t **)&zs->zs_zevent); | |
572e2857 | 6681 | |
3937ab20 TC |
6682 | |
6683 | /* | |
6684 | * In order to provide for lock-free concurrent read access | |
6685 | * to the minor list in zfsdev_get_state_impl(), new entries | |
6686 | * must be completely written before linking them into the | |
6687 | * list whereas existing entries are already linked; the last | |
6688 | * operation must be updating zs_minor (from -1 to the new | |
6689 | * value). | |
6690 | */ | |
6691 | if (newzs) { | |
6692 | zs->zs_minor = minor; | |
6693 | smp_wmb(); | |
6694 | zsprev->zs_next = zs; | |
6695 | } else { | |
6696 | smp_wmb(); | |
6697 | zs->zs_minor = minor; | |
6698 | } | |
572e2857 BB |
6699 | |
6700 | return (0); | |
6701 | } | |
6702 | ||
325f0235 BB |
6703 | static int |
6704 | zfsdev_state_destroy(struct file *filp) | |
572e2857 | 6705 | { |
325f0235 | 6706 | zfsdev_state_t *zs; |
572e2857 | 6707 | |
325f0235 BB |
6708 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); |
6709 | ASSERT(filp->private_data != NULL); | |
572e2857 | 6710 | |
325f0235 | 6711 | zs = filp->private_data; |
3937ab20 | 6712 | zs->zs_minor = -1; |
325f0235 BB |
6713 | zfs_onexit_destroy(zs->zs_onexit); |
6714 | zfs_zevent_destroy(zs->zs_zevent); | |
572e2857 | 6715 | |
d1d7e268 | 6716 | return (0); |
572e2857 BB |
6717 | } |
6718 | ||
6719 | static int | |
325f0235 | 6720 | zfsdev_open(struct inode *ino, struct file *filp) |
572e2857 | 6721 | { |
325f0235 | 6722 | int error; |
572e2857 | 6723 | |
325f0235 BB |
6724 | mutex_enter(&zfsdev_state_lock); |
6725 | error = zfsdev_state_init(filp); | |
6726 | mutex_exit(&zfsdev_state_lock); | |
572e2857 | 6727 | |
325f0235 | 6728 | return (-error); |
572e2857 BB |
6729 | } |
6730 | ||
6731 | static int | |
325f0235 | 6732 | zfsdev_release(struct inode *ino, struct file *filp) |
572e2857 | 6733 | { |
325f0235 | 6734 | int error; |
572e2857 BB |
6735 | |
6736 | mutex_enter(&zfsdev_state_lock); | |
325f0235 | 6737 | error = zfsdev_state_destroy(filp); |
572e2857 BB |
6738 | mutex_exit(&zfsdev_state_lock); |
6739 | ||
325f0235 | 6740 | return (-error); |
572e2857 BB |
6741 | } |
6742 | ||
325f0235 BB |
6743 | static long |
6744 | zfsdev_ioctl(struct file *filp, unsigned cmd, unsigned long arg) | |
34dc7c2f BB |
6745 | { |
6746 | zfs_cmd_t *zc; | |
6f1ffb06 | 6747 | uint_t vecnum; |
4fd762f8 | 6748 | int error, rc, flag = 0; |
6f1ffb06 | 6749 | const zfs_ioc_vec_t *vec; |
fb8e608d | 6750 | char *saved_poolname = NULL; |
6f1ffb06 | 6751 | nvlist_t *innvl = NULL; |
40d06e3c | 6752 | fstrans_cookie_t cookie; |
6f1ffb06 MA |
6753 | |
6754 | vecnum = cmd - ZFS_IOC_FIRST; | |
6755 | if (vecnum >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0])) | |
2e528b49 | 6756 | return (-SET_ERROR(EINVAL)); |
6f1ffb06 | 6757 | vec = &zfs_ioc_vec[vecnum]; |
34dc7c2f | 6758 | |
2e0358cb BB |
6759 | /* |
6760 | * The registered ioctl list may be sparse, verify that either | |
6761 | * a normal or legacy handler are registered. | |
6762 | */ | |
6763 | if (vec->zvec_func == NULL && vec->zvec_legacy_func == NULL) | |
6764 | return (-SET_ERROR(EINVAL)); | |
6765 | ||
efcd79a8 | 6766 | zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); |
34dc7c2f | 6767 | |
9babb374 | 6768 | error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag); |
6f1ffb06 | 6769 | if (error != 0) { |
2e528b49 | 6770 | error = SET_ERROR(EFAULT); |
6f1ffb06 MA |
6771 | goto out; |
6772 | } | |
34dc7c2f | 6773 | |
6f1ffb06 | 6774 | zc->zc_iflags = flag & FKIOCTL; |
f74b821a BB |
6775 | if (zc->zc_nvlist_src_size > MAX_NVLIST_SRC_SIZE) { |
6776 | /* | |
6777 | * Make sure the user doesn't pass in an insane value for | |
6778 | * zc_nvlist_src_size. We have to check, since we will end | |
6779 | * up allocating that much memory inside of get_nvlist(). This | |
6780 | * prevents a nefarious user from allocating tons of kernel | |
6781 | * memory. | |
6782 | * | |
6783 | * Also, we return EINVAL instead of ENOMEM here. The reason | |
6784 | * being that returning ENOMEM from an ioctl() has a special | |
6785 | * connotation; that the user's size value is too small and | |
6786 | * needs to be expanded to hold the nvlist. See | |
6787 | * zcmd_expand_dst_nvlist() for details. | |
6788 | */ | |
6789 | error = SET_ERROR(EINVAL); /* User's size too big */ | |
6790 | ||
6791 | } else if (zc->zc_nvlist_src_size != 0) { | |
6f1ffb06 MA |
6792 | error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
6793 | zc->zc_iflags, &innvl); | |
6794 | if (error != 0) | |
6795 | goto out; | |
6796 | } | |
34dc7c2f BB |
6797 | |
6798 | /* | |
6799 | * Ensure that all pool/dataset names are valid before we pass down to | |
6800 | * the lower layers. | |
6801 | */ | |
6f1ffb06 MA |
6802 | zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; |
6803 | switch (vec->zvec_namecheck) { | |
6804 | case POOL_NAME: | |
6805 | if (pool_namecheck(zc->zc_name, NULL, NULL) != 0) | |
2e528b49 | 6806 | error = SET_ERROR(EINVAL); |
6f1ffb06 | 6807 | else |
572e2857 | 6808 | error = pool_status_check(zc->zc_name, |
6f1ffb06 MA |
6809 | vec->zvec_namecheck, vec->zvec_pool_check); |
6810 | break; | |
34dc7c2f | 6811 | |
6f1ffb06 MA |
6812 | case DATASET_NAME: |
6813 | if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0) | |
2e528b49 | 6814 | error = SET_ERROR(EINVAL); |
6f1ffb06 | 6815 | else |
572e2857 | 6816 | error = pool_status_check(zc->zc_name, |
6f1ffb06 MA |
6817 | vec->zvec_namecheck, vec->zvec_pool_check); |
6818 | break; | |
34dc7c2f | 6819 | |
6f1ffb06 MA |
6820 | case NO_NAME: |
6821 | break; | |
34dc7c2f BB |
6822 | } |
6823 | ||
34dc7c2f | 6824 | |
005e27e3 | 6825 | if (error == 0) { |
ddab862d | 6826 | cookie = spl_fstrans_mark(); |
6f1ffb06 | 6827 | error = vec->zvec_secpolicy(zc, innvl, CRED()); |
ddab862d TC |
6828 | spl_fstrans_unmark(cookie); |
6829 | } | |
6f1ffb06 MA |
6830 | |
6831 | if (error != 0) | |
6832 | goto out; | |
6833 | ||
6834 | /* legacy ioctls can modify zc_name */ | |
4fd762f8 BB |
6835 | saved_poolname = strdup(zc->zc_name); |
6836 | if (saved_poolname == NULL) { | |
6837 | error = SET_ERROR(ENOMEM); | |
6838 | goto out; | |
6839 | } else { | |
6840 | saved_poolname[strcspn(saved_poolname, "/@#")] = '\0'; | |
6841 | } | |
6f1ffb06 MA |
6842 | |
6843 | if (vec->zvec_func != NULL) { | |
6844 | nvlist_t *outnvl; | |
6845 | int puterror = 0; | |
6846 | spa_t *spa; | |
6847 | nvlist_t *lognv = NULL; | |
6848 | ||
6849 | ASSERT(vec->zvec_legacy_func == NULL); | |
6850 | ||
6851 | /* | |
6852 | * Add the innvl to the lognv before calling the func, | |
6853 | * in case the func changes the innvl. | |
6854 | */ | |
6855 | if (vec->zvec_allow_log) { | |
6856 | lognv = fnvlist_alloc(); | |
6857 | fnvlist_add_string(lognv, ZPOOL_HIST_IOCTL, | |
6858 | vec->zvec_name); | |
6859 | if (!nvlist_empty(innvl)) { | |
6860 | fnvlist_add_nvlist(lognv, ZPOOL_HIST_INPUT_NVL, | |
6861 | innvl); | |
6862 | } | |
6863 | } | |
6864 | ||
79c76d5b | 6865 | outnvl = fnvlist_alloc(); |
40d06e3c | 6866 | cookie = spl_fstrans_mark(); |
6f1ffb06 | 6867 | error = vec->zvec_func(zc->zc_name, innvl, outnvl); |
40d06e3c | 6868 | spl_fstrans_unmark(cookie); |
6f1ffb06 | 6869 | |
d99a0153 CW |
6870 | /* |
6871 | * Some commands can partially execute, modify state, and still | |
6872 | * return an error. In these cases, attempt to record what | |
6873 | * was modified. | |
6874 | */ | |
6875 | if ((error == 0 || | |
6876 | (cmd == ZFS_IOC_CHANNEL_PROGRAM && error != EINVAL)) && | |
6877 | vec->zvec_allow_log && | |
6f1ffb06 MA |
6878 | spa_open(zc->zc_name, &spa, FTAG) == 0) { |
6879 | if (!nvlist_empty(outnvl)) { | |
6880 | fnvlist_add_nvlist(lognv, ZPOOL_HIST_OUTPUT_NVL, | |
6881 | outnvl); | |
6882 | } | |
d99a0153 CW |
6883 | if (error != 0) { |
6884 | fnvlist_add_int64(lognv, ZPOOL_HIST_ERRNO, | |
6885 | error); | |
6886 | } | |
6f1ffb06 MA |
6887 | (void) spa_history_log_nvl(spa, lognv); |
6888 | spa_close(spa, FTAG); | |
6889 | } | |
6890 | fnvlist_free(lognv); | |
6891 | ||
6892 | if (!nvlist_empty(outnvl) || zc->zc_nvlist_dst_size != 0) { | |
6893 | int smusherror = 0; | |
6894 | if (vec->zvec_smush_outnvlist) { | |
6895 | smusherror = nvlist_smush(outnvl, | |
6896 | zc->zc_nvlist_dst_size); | |
6897 | } | |
6898 | if (smusherror == 0) | |
6899 | puterror = put_nvlist(zc, outnvl); | |
6900 | } | |
6901 | ||
6902 | if (puterror != 0) | |
6903 | error = puterror; | |
6904 | ||
6905 | nvlist_free(outnvl); | |
6906 | } else { | |
40d06e3c | 6907 | cookie = spl_fstrans_mark(); |
6f1ffb06 | 6908 | error = vec->zvec_legacy_func(zc); |
40d06e3c | 6909 | spl_fstrans_unmark(cookie); |
6f1ffb06 MA |
6910 | } |
6911 | ||
6912 | out: | |
6913 | nvlist_free(innvl); | |
9babb374 | 6914 | rc = ddi_copyout(zc, (void *)arg, sizeof (zfs_cmd_t), flag); |
6f1ffb06 | 6915 | if (error == 0 && rc != 0) |
2e528b49 | 6916 | error = SET_ERROR(EFAULT); |
6f1ffb06 MA |
6917 | if (error == 0 && vec->zvec_allow_log) { |
6918 | char *s = tsd_get(zfs_allow_log_key); | |
6919 | if (s != NULL) | |
6920 | strfree(s); | |
fb8e608d TC |
6921 | (void) tsd_set(zfs_allow_log_key, saved_poolname); |
6922 | } else { | |
6923 | if (saved_poolname != NULL) | |
4fd762f8 | 6924 | strfree(saved_poolname); |
34dc7c2f BB |
6925 | } |
6926 | ||
6927 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
325f0235 | 6928 | return (-error); |
34dc7c2f BB |
6929 | } |
6930 | ||
325f0235 BB |
6931 | #ifdef CONFIG_COMPAT |
6932 | static long | |
6933 | zfsdev_compat_ioctl(struct file *filp, unsigned cmd, unsigned long arg) | |
34dc7c2f | 6934 | { |
d1d7e268 | 6935 | return (zfsdev_ioctl(filp, cmd, arg)); |
325f0235 BB |
6936 | } |
6937 | #else | |
d1d7e268 | 6938 | #define zfsdev_compat_ioctl NULL |
325f0235 | 6939 | #endif |
34dc7c2f | 6940 | |
325f0235 | 6941 | static const struct file_operations zfsdev_fops = { |
d1d7e268 MK |
6942 | .open = zfsdev_open, |
6943 | .release = zfsdev_release, | |
6944 | .unlocked_ioctl = zfsdev_ioctl, | |
6945 | .compat_ioctl = zfsdev_compat_ioctl, | |
6946 | .owner = THIS_MODULE, | |
325f0235 | 6947 | }; |
34dc7c2f | 6948 | |
325f0235 | 6949 | static struct miscdevice zfs_misc = { |
a6cc9756 | 6950 | .minor = ZFS_MINOR, |
d1d7e268 MK |
6951 | .name = ZFS_DRIVER, |
6952 | .fops = &zfsdev_fops, | |
325f0235 | 6953 | }; |
34dc7c2f | 6954 | |
a6cc9756 BB |
6955 | MODULE_ALIAS_MISCDEV(ZFS_MINOR); |
6956 | MODULE_ALIAS("devname:zfs"); | |
6957 | ||
34dc7c2f | 6958 | static int |
325f0235 | 6959 | zfs_attach(void) |
34dc7c2f | 6960 | { |
325f0235 | 6961 | int error; |
34dc7c2f | 6962 | |
325f0235 | 6963 | mutex_init(&zfsdev_state_lock, NULL, MUTEX_DEFAULT, NULL); |
3937ab20 TC |
6964 | zfsdev_state_list = kmem_zalloc(sizeof (zfsdev_state_t), KM_SLEEP); |
6965 | zfsdev_state_list->zs_minor = -1; | |
34dc7c2f | 6966 | |
325f0235 | 6967 | error = misc_register(&zfs_misc); |
a6cc9756 BB |
6968 | if (error == -EBUSY) { |
6969 | /* | |
6970 | * Fallback to dynamic minor allocation in the event of a | |
6971 | * collision with a reserved minor in linux/miscdevice.h. | |
6972 | * In this case the kernel modules must be manually loaded. | |
6973 | */ | |
6974 | printk(KERN_INFO "ZFS: misc_register() with static minor %d " | |
6975 | "failed %d, retrying with MISC_DYNAMIC_MINOR\n", | |
6976 | ZFS_MINOR, error); | |
6977 | ||
6978 | zfs_misc.minor = MISC_DYNAMIC_MINOR; | |
6979 | error = misc_register(&zfs_misc); | |
325f0235 | 6980 | } |
34dc7c2f | 6981 | |
a6cc9756 BB |
6982 | if (error) |
6983 | printk(KERN_INFO "ZFS: misc_register() failed %d\n", error); | |
6984 | ||
6985 | return (error); | |
34dc7c2f BB |
6986 | } |
6987 | ||
325f0235 BB |
6988 | static void |
6989 | zfs_detach(void) | |
34dc7c2f | 6990 | { |
3937ab20 | 6991 | zfsdev_state_t *zs, *zsprev = NULL; |
34dc7c2f | 6992 | |
324dcd37 | 6993 | misc_deregister(&zfs_misc); |
325f0235 | 6994 | mutex_destroy(&zfsdev_state_lock); |
3937ab20 TC |
6995 | |
6996 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { | |
6997 | if (zsprev) | |
6998 | kmem_free(zsprev, sizeof (zfsdev_state_t)); | |
6999 | zsprev = zs; | |
7000 | } | |
7001 | if (zsprev) | |
7002 | kmem_free(zsprev, sizeof (zfsdev_state_t)); | |
34dc7c2f BB |
7003 | } |
7004 | ||
6f1ffb06 MA |
7005 | static void |
7006 | zfs_allow_log_destroy(void *arg) | |
7007 | { | |
7008 | char *poolname = arg; | |
9f3d1407 | 7009 | |
7010 | if (poolname != NULL) | |
7011 | strfree(poolname); | |
6f1ffb06 | 7012 | } |
325f0235 BB |
7013 | |
7014 | #ifdef DEBUG | |
d1d7e268 | 7015 | #define ZFS_DEBUG_STR " (DEBUG mode)" |
325f0235 | 7016 | #else |
d1d7e268 | 7017 | #define ZFS_DEBUG_STR "" |
325f0235 | 7018 | #endif |
34dc7c2f | 7019 | |
b4f3666a | 7020 | static int __init |
34dc7c2f BB |
7021 | _init(void) |
7022 | { | |
7023 | int error; | |
7024 | ||
3d8d245f | 7025 | error = -vn_set_pwd("/"); |
b4f3666a BB |
7026 | if (error) { |
7027 | printk(KERN_NOTICE | |
7028 | "ZFS: Warning unable to set pwd to '/': %d\n", error); | |
7029 | return (error); | |
7030 | } | |
7031 | ||
a0bd735a BP |
7032 | if ((error = -zvol_init()) != 0) |
7033 | return (error); | |
7034 | ||
34dc7c2f BB |
7035 | spa_init(FREAD | FWRITE); |
7036 | zfs_init(); | |
34dc7c2f | 7037 | |
6f1ffb06 MA |
7038 | zfs_ioctl_init(); |
7039 | ||
325f0235 | 7040 | if ((error = zfs_attach()) != 0) |
a0bd735a | 7041 | goto out; |
34dc7c2f | 7042 | |
d5446cfc | 7043 | tsd_create(&zfs_fsyncer_key, NULL); |
6f1ffb06 MA |
7044 | tsd_create(&rrw_tsd_key, rrw_tsd_destroy); |
7045 | tsd_create(&zfs_allow_log_key, zfs_allow_log_destroy); | |
34dc7c2f | 7046 | |
4b5d425f | 7047 | printk(KERN_NOTICE "ZFS: Loaded module v%s-%s%s, " |
d1d7e268 MK |
7048 | "ZFS pool version %s, ZFS filesystem version %s\n", |
7049 | ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR, | |
7050 | SPA_VERSION_STRING, ZPL_VERSION_STRING); | |
b695c34e MM |
7051 | #ifndef CONFIG_FS_POSIX_ACL |
7052 | printk(KERN_NOTICE "ZFS: Posix ACLs disabled by kernel\n"); | |
7053 | #endif /* CONFIG_FS_POSIX_ACL */ | |
34dc7c2f BB |
7054 | |
7055 | return (0); | |
325f0235 | 7056 | |
a0bd735a | 7057 | out: |
325f0235 BB |
7058 | zfs_fini(); |
7059 | spa_fini(); | |
a0bd735a | 7060 | (void) zvol_fini(); |
4b5d425f | 7061 | printk(KERN_NOTICE "ZFS: Failed to Load ZFS Filesystem v%s-%s%s" |
d1d7e268 MK |
7062 | ", rc = %d\n", ZFS_META_VERSION, ZFS_META_RELEASE, |
7063 | ZFS_DEBUG_STR, error); | |
325f0235 BB |
7064 | |
7065 | return (error); | |
34dc7c2f BB |
7066 | } |
7067 | ||
b4f3666a | 7068 | static void __exit |
34dc7c2f BB |
7069 | _fini(void) |
7070 | { | |
325f0235 | 7071 | zfs_detach(); |
34dc7c2f BB |
7072 | zfs_fini(); |
7073 | spa_fini(); | |
a0bd735a | 7074 | zvol_fini(); |
46e18b3f | 7075 | |
d5446cfc | 7076 | tsd_destroy(&zfs_fsyncer_key); |
3fc050aa | 7077 | tsd_destroy(&rrw_tsd_key); |
6f1ffb06 | 7078 | tsd_destroy(&zfs_allow_log_key); |
34dc7c2f | 7079 | |
4b5d425f | 7080 | printk(KERN_NOTICE "ZFS: Unloaded module v%s-%s%s\n", |
d1d7e268 | 7081 | ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR); |
34dc7c2f | 7082 | } |
325f0235 BB |
7083 | |
7084 | #ifdef HAVE_SPL | |
b4f3666a BB |
7085 | module_init(_init); |
7086 | module_exit(_fini); | |
325f0235 BB |
7087 | |
7088 | MODULE_DESCRIPTION("ZFS"); | |
7089 | MODULE_AUTHOR(ZFS_META_AUTHOR); | |
7090 | MODULE_LICENSE(ZFS_META_LICENSE); | |
99e349db | 7091 | MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE); |
325f0235 | 7092 | #endif /* HAVE_SPL */ |