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34dc7c2f BB |
1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
4 | * The contents of this file are subject to the terms of the | |
5 | * Common Development and Distribution License (the "License"). | |
6 | * You may not use this file except in compliance with the License. | |
7 | * | |
8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 | * or http://www.opensolaris.org/os/licensing. | |
10 | * See the License for the specific language governing permissions | |
11 | * and limitations under the License. | |
12 | * | |
13 | * When distributing Covered Code, include this CDDL HEADER in each | |
14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 | * If applicable, add the following below this CDDL HEADER, with the | |
16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
9ae529ec | 21 | |
34dc7c2f | 22 | /* |
428870ff | 23 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
b129c659 | 24 | * Portions Copyright 2011 Martin Matuska |
0cee2406 | 25 | * Portions Copyright 2012 Pawel Jakub Dawidek <pawel@dawidek.net> |
b129c659 | 26 | * Copyright (c) 2012, Joyent, Inc. All rights reserved. |
3541dc6d | 27 | * Copyright 2011 Nexenta Systems, Inc. All rights reserved. |
788eb90c | 28 | * Copyright (c) 2014, Joyent, Inc. All rights reserved. |
3d45fdd6 | 29 | * Copyright (c) 2011, 2014 by Delphix. All rights reserved. |
9759c60f | 30 | * Copyright (c) 2013 by Saso Kiselkov. All rights reserved. |
95fd54a1 | 31 | * Copyright (c) 2013 Steven Hartland. All rights reserved. |
62bdd5eb | 32 | * Copyright (c) 2014, Nexenta Systems, Inc. All rights reserved. |
6f1ffb06 MA |
33 | */ |
34 | ||
35 | /* | |
36 | * ZFS ioctls. | |
37 | * | |
38 | * This file handles the ioctls to /dev/zfs, used for configuring ZFS storage | |
39 | * pools and filesystems, e.g. with /sbin/zfs and /sbin/zpool. | |
40 | * | |
41 | * There are two ways that we handle ioctls: the legacy way where almost | |
42 | * all of the logic is in the ioctl callback, and the new way where most | |
43 | * of the marshalling is handled in the common entry point, zfsdev_ioctl(). | |
44 | * | |
45 | * Non-legacy ioctls should be registered by calling | |
46 | * zfs_ioctl_register() from zfs_ioctl_init(). The ioctl is invoked | |
47 | * from userland by lzc_ioctl(). | |
48 | * | |
49 | * The registration arguments are as follows: | |
50 | * | |
51 | * const char *name | |
52 | * The name of the ioctl. This is used for history logging. If the | |
53 | * ioctl returns successfully (the callback returns 0), and allow_log | |
54 | * is true, then a history log entry will be recorded with the input & | |
55 | * output nvlists. The log entry can be printed with "zpool history -i". | |
56 | * | |
57 | * zfs_ioc_t ioc | |
58 | * The ioctl request number, which userland will pass to ioctl(2). | |
59 | * The ioctl numbers can change from release to release, because | |
60 | * the caller (libzfs) must be matched to the kernel. | |
61 | * | |
62 | * zfs_secpolicy_func_t *secpolicy | |
63 | * This function will be called before the zfs_ioc_func_t, to | |
64 | * determine if this operation is permitted. It should return EPERM | |
65 | * on failure, and 0 on success. Checks include determining if the | |
66 | * dataset is visible in this zone, and if the user has either all | |
67 | * zfs privileges in the zone (SYS_MOUNT), or has been granted permission | |
68 | * to do this operation on this dataset with "zfs allow". | |
69 | * | |
70 | * zfs_ioc_namecheck_t namecheck | |
71 | * This specifies what to expect in the zfs_cmd_t:zc_name -- a pool | |
72 | * name, a dataset name, or nothing. If the name is not well-formed, | |
73 | * the ioctl will fail and the callback will not be called. | |
74 | * Therefore, the callback can assume that the name is well-formed | |
75 | * (e.g. is null-terminated, doesn't have more than one '@' character, | |
76 | * doesn't have invalid characters). | |
77 | * | |
78 | * zfs_ioc_poolcheck_t pool_check | |
79 | * This specifies requirements on the pool state. If the pool does | |
80 | * not meet them (is suspended or is readonly), the ioctl will fail | |
81 | * and the callback will not be called. If any checks are specified | |
82 | * (i.e. it is not POOL_CHECK_NONE), namecheck must not be NO_NAME. | |
83 | * Multiple checks can be or-ed together (e.g. POOL_CHECK_SUSPENDED | | |
84 | * POOL_CHECK_READONLY). | |
85 | * | |
86 | * boolean_t smush_outnvlist | |
87 | * If smush_outnvlist is true, then the output is presumed to be a | |
88 | * list of errors, and it will be "smushed" down to fit into the | |
89 | * caller's buffer, by removing some entries and replacing them with a | |
90 | * single "N_MORE_ERRORS" entry indicating how many were removed. See | |
91 | * nvlist_smush() for details. If smush_outnvlist is false, and the | |
92 | * outnvlist does not fit into the userland-provided buffer, then the | |
93 | * ioctl will fail with ENOMEM. | |
94 | * | |
95 | * zfs_ioc_func_t *func | |
96 | * The callback function that will perform the operation. | |
97 | * | |
98 | * The callback should return 0 on success, or an error number on | |
99 | * failure. If the function fails, the userland ioctl will return -1, | |
100 | * and errno will be set to the callback's return value. The callback | |
101 | * will be called with the following arguments: | |
102 | * | |
103 | * const char *name | |
104 | * The name of the pool or dataset to operate on, from | |
105 | * zfs_cmd_t:zc_name. The 'namecheck' argument specifies the | |
106 | * expected type (pool, dataset, or none). | |
107 | * | |
108 | * nvlist_t *innvl | |
109 | * The input nvlist, deserialized from zfs_cmd_t:zc_nvlist_src. Or | |
110 | * NULL if no input nvlist was provided. Changes to this nvlist are | |
111 | * ignored. If the input nvlist could not be deserialized, the | |
112 | * ioctl will fail and the callback will not be called. | |
113 | * | |
114 | * nvlist_t *outnvl | |
115 | * The output nvlist, initially empty. The callback can fill it in, | |
116 | * and it will be returned to userland by serializing it into | |
117 | * zfs_cmd_t:zc_nvlist_dst. If it is non-empty, and serialization | |
118 | * fails (e.g. because the caller didn't supply a large enough | |
119 | * buffer), then the overall ioctl will fail. See the | |
120 | * 'smush_nvlist' argument above for additional behaviors. | |
121 | * | |
122 | * There are two typical uses of the output nvlist: | |
123 | * - To return state, e.g. property values. In this case, | |
124 | * smush_outnvlist should be false. If the buffer was not large | |
125 | * enough, the caller will reallocate a larger buffer and try | |
126 | * the ioctl again. | |
127 | * | |
128 | * - To return multiple errors from an ioctl which makes on-disk | |
129 | * changes. In this case, smush_outnvlist should be true. | |
130 | * Ioctls which make on-disk modifications should generally not | |
131 | * use the outnvl if they succeed, because the caller can not | |
132 | * distinguish between the operation failing, and | |
133 | * deserialization failing. | |
3541dc6d | 134 | */ |
34dc7c2f | 135 | |
34dc7c2f BB |
136 | #include <sys/types.h> |
137 | #include <sys/param.h> | |
138 | #include <sys/errno.h> | |
139 | #include <sys/uio.h> | |
140 | #include <sys/buf.h> | |
141 | #include <sys/modctl.h> | |
142 | #include <sys/open.h> | |
143 | #include <sys/file.h> | |
144 | #include <sys/kmem.h> | |
145 | #include <sys/conf.h> | |
146 | #include <sys/cmn_err.h> | |
147 | #include <sys/stat.h> | |
148 | #include <sys/zfs_ioctl.h> | |
428870ff | 149 | #include <sys/zfs_vfsops.h> |
34dc7c2f BB |
150 | #include <sys/zfs_znode.h> |
151 | #include <sys/zap.h> | |
152 | #include <sys/spa.h> | |
153 | #include <sys/spa_impl.h> | |
154 | #include <sys/vdev.h> | |
428870ff | 155 | #include <sys/priv_impl.h> |
34dc7c2f BB |
156 | #include <sys/dmu.h> |
157 | #include <sys/dsl_dir.h> | |
158 | #include <sys/dsl_dataset.h> | |
159 | #include <sys/dsl_prop.h> | |
160 | #include <sys/dsl_deleg.h> | |
161 | #include <sys/dmu_objset.h> | |
37abac6d | 162 | #include <sys/dmu_impl.h> |
13fe0198 | 163 | #include <sys/dmu_tx.h> |
34dc7c2f BB |
164 | #include <sys/ddi.h> |
165 | #include <sys/sunddi.h> | |
166 | #include <sys/sunldi.h> | |
167 | #include <sys/policy.h> | |
168 | #include <sys/zone.h> | |
169 | #include <sys/nvpair.h> | |
170 | #include <sys/pathname.h> | |
171 | #include <sys/mount.h> | |
172 | #include <sys/sdt.h> | |
173 | #include <sys/fs/zfs.h> | |
ebe7e575 | 174 | #include <sys/zfs_ctldir.h> |
34dc7c2f | 175 | #include <sys/zfs_dir.h> |
572e2857 | 176 | #include <sys/zfs_onexit.h> |
34dc7c2f | 177 | #include <sys/zvol.h> |
428870ff | 178 | #include <sys/dsl_scan.h> |
34dc7c2f | 179 | #include <sharefs/share.h> |
325f0235 BB |
180 | #include <sys/fm/util.h> |
181 | ||
13fe0198 MA |
182 | #include <sys/dmu_send.h> |
183 | #include <sys/dsl_destroy.h> | |
da536844 | 184 | #include <sys/dsl_bookmark.h> |
13fe0198 | 185 | #include <sys/dsl_userhold.h> |
9759c60f ED |
186 | #include <sys/zfeature.h> |
187 | ||
325f0235 | 188 | #include <linux/miscdevice.h> |
34dc7c2f BB |
189 | |
190 | #include "zfs_namecheck.h" | |
191 | #include "zfs_prop.h" | |
192 | #include "zfs_deleg.h" | |
428870ff | 193 | #include "zfs_comutil.h" |
34dc7c2f | 194 | |
325f0235 | 195 | kmutex_t zfsdev_state_lock; |
3937ab20 | 196 | zfsdev_state_t *zfsdev_state_list; |
34dc7c2f BB |
197 | |
198 | extern void zfs_init(void); | |
199 | extern void zfs_fini(void); | |
200 | ||
6f1ffb06 MA |
201 | uint_t zfs_fsyncer_key; |
202 | extern uint_t rrw_tsd_key; | |
203 | static uint_t zfs_allow_log_key; | |
204 | ||
205 | typedef int zfs_ioc_legacy_func_t(zfs_cmd_t *); | |
206 | typedef int zfs_ioc_func_t(const char *, nvlist_t *, nvlist_t *); | |
207 | typedef int zfs_secpolicy_func_t(zfs_cmd_t *, nvlist_t *, cred_t *); | |
34dc7c2f | 208 | |
9babb374 BB |
209 | typedef enum { |
210 | NO_NAME, | |
211 | POOL_NAME, | |
212 | DATASET_NAME | |
213 | } zfs_ioc_namecheck_t; | |
214 | ||
572e2857 BB |
215 | typedef enum { |
216 | POOL_CHECK_NONE = 1 << 0, | |
217 | POOL_CHECK_SUSPENDED = 1 << 1, | |
6f1ffb06 | 218 | POOL_CHECK_READONLY = 1 << 2, |
572e2857 BB |
219 | } zfs_ioc_poolcheck_t; |
220 | ||
34dc7c2f | 221 | typedef struct zfs_ioc_vec { |
6f1ffb06 | 222 | zfs_ioc_legacy_func_t *zvec_legacy_func; |
34dc7c2f BB |
223 | zfs_ioc_func_t *zvec_func; |
224 | zfs_secpolicy_func_t *zvec_secpolicy; | |
9babb374 | 225 | zfs_ioc_namecheck_t zvec_namecheck; |
6f1ffb06 | 226 | boolean_t zvec_allow_log; |
572e2857 | 227 | zfs_ioc_poolcheck_t zvec_pool_check; |
6f1ffb06 MA |
228 | boolean_t zvec_smush_outnvlist; |
229 | const char *zvec_name; | |
34dc7c2f BB |
230 | } zfs_ioc_vec_t; |
231 | ||
9babb374 BB |
232 | /* This array is indexed by zfs_userquota_prop_t */ |
233 | static const char *userquota_perms[] = { | |
234 | ZFS_DELEG_PERM_USERUSED, | |
235 | ZFS_DELEG_PERM_USERQUOTA, | |
236 | ZFS_DELEG_PERM_GROUPUSED, | |
237 | ZFS_DELEG_PERM_GROUPQUOTA, | |
238 | }; | |
239 | ||
240 | static int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc); | |
428870ff BB |
241 | static int zfs_check_settable(const char *name, nvpair_t *property, |
242 | cred_t *cr); | |
243 | static int zfs_check_clearable(char *dataset, nvlist_t *props, | |
244 | nvlist_t **errors); | |
b128c09f BB |
245 | static int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *, |
246 | boolean_t *); | |
6f1ffb06 MA |
247 | int zfs_set_prop_nvlist(const char *, zprop_source_t, nvlist_t *, nvlist_t *); |
248 | static int get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp); | |
b128c09f | 249 | |
0b39b9f9 PS |
250 | #if defined(HAVE_DECLARE_EVENT_CLASS) |
251 | void | |
252 | __dprintf(const char *file, const char *func, int line, const char *fmt, ...) | |
253 | { | |
254 | const char *newfile; | |
255 | size_t size = 4096; | |
79c76d5b | 256 | char *buf = kmem_alloc(size, KM_SLEEP); |
0b39b9f9 PS |
257 | char *nl; |
258 | va_list adx; | |
259 | ||
260 | /* | |
261 | * Get rid of annoying prefix to filename. | |
262 | */ | |
263 | newfile = strrchr(file, '/'); | |
264 | if (newfile != NULL) { | |
265 | newfile = newfile + 1; /* Get rid of leading / */ | |
266 | } else { | |
267 | newfile = file; | |
268 | } | |
269 | ||
270 | va_start(adx, fmt); | |
271 | (void) vsnprintf(buf, size, fmt, adx); | |
272 | va_end(adx); | |
273 | ||
274 | /* | |
275 | * Get rid of trailing newline. | |
276 | */ | |
277 | nl = strrchr(buf, '\n'); | |
278 | if (nl != NULL) | |
279 | *nl = '\0'; | |
280 | ||
281 | /* | |
282 | * To get this data enable the zfs__dprintf trace point as shown: | |
283 | * | |
284 | * # Enable zfs__dprintf tracepoint, clear the tracepoint ring buffer | |
285 | * $ echo 1 > /sys/module/zfs/parameters/zfs_flags | |
286 | * $ echo 1 > /sys/kernel/debug/tracing/events/zfs/enable | |
287 | * $ echo 0 > /sys/kernel/debug/tracing/trace | |
288 | * | |
289 | * # Dump the ring buffer. | |
290 | * $ cat /sys/kernel/debug/tracing/trace | |
291 | */ | |
292 | DTRACE_PROBE4(zfs__dprintf, | |
293 | char *, newfile, char *, func, int, line, char *, buf); | |
294 | ||
295 | kmem_free(buf, size); | |
296 | } | |
297 | #endif /* HAVE_DECLARE_EVENT_CLASS */ | |
298 | ||
34dc7c2f BB |
299 | static void |
300 | history_str_free(char *buf) | |
301 | { | |
302 | kmem_free(buf, HIS_MAX_RECORD_LEN); | |
303 | } | |
304 | ||
305 | static char * | |
306 | history_str_get(zfs_cmd_t *zc) | |
307 | { | |
308 | char *buf; | |
309 | ||
b8864a23 | 310 | if (zc->zc_history == 0) |
34dc7c2f BB |
311 | return (NULL); |
312 | ||
efcd79a8 | 313 | buf = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP); |
34dc7c2f BB |
314 | if (copyinstr((void *)(uintptr_t)zc->zc_history, |
315 | buf, HIS_MAX_RECORD_LEN, NULL) != 0) { | |
316 | history_str_free(buf); | |
317 | return (NULL); | |
318 | } | |
319 | ||
320 | buf[HIS_MAX_RECORD_LEN -1] = '\0'; | |
321 | ||
322 | return (buf); | |
323 | } | |
324 | ||
325 | /* | |
b128c09f BB |
326 | * Check to see if the named dataset is currently defined as bootable |
327 | */ | |
328 | static boolean_t | |
329 | zfs_is_bootfs(const char *name) | |
330 | { | |
428870ff | 331 | objset_t *os; |
b128c09f | 332 | |
428870ff BB |
333 | if (dmu_objset_hold(name, FTAG, &os) == 0) { |
334 | boolean_t ret; | |
335 | ret = (dmu_objset_id(os) == spa_bootfs(dmu_objset_spa(os))); | |
336 | dmu_objset_rele(os, FTAG); | |
337 | return (ret); | |
b128c09f | 338 | } |
428870ff | 339 | return (B_FALSE); |
b128c09f BB |
340 | } |
341 | ||
342 | /* | |
d3cc8b15 | 343 | * Return non-zero if the spa version is less than requested version. |
34dc7c2f BB |
344 | */ |
345 | static int | |
b128c09f | 346 | zfs_earlier_version(const char *name, int version) |
34dc7c2f | 347 | { |
34dc7c2f BB |
348 | spa_t *spa; |
349 | ||
350 | if (spa_open(name, &spa, FTAG) == 0) { | |
351 | if (spa_version(spa) < version) { | |
352 | spa_close(spa, FTAG); | |
353 | return (1); | |
354 | } | |
355 | spa_close(spa, FTAG); | |
356 | } | |
357 | return (0); | |
358 | } | |
359 | ||
360 | /* | |
b128c09f | 361 | * Return TRUE if the ZPL version is less than requested version. |
34dc7c2f | 362 | */ |
b128c09f BB |
363 | static boolean_t |
364 | zpl_earlier_version(const char *name, int version) | |
34dc7c2f BB |
365 | { |
366 | objset_t *os; | |
b128c09f | 367 | boolean_t rc = B_TRUE; |
34dc7c2f | 368 | |
428870ff | 369 | if (dmu_objset_hold(name, FTAG, &os) == 0) { |
b128c09f | 370 | uint64_t zplversion; |
34dc7c2f | 371 | |
428870ff BB |
372 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
373 | dmu_objset_rele(os, FTAG); | |
374 | return (B_TRUE); | |
375 | } | |
376 | /* XXX reading from non-owned objset */ | |
b128c09f BB |
377 | if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0) |
378 | rc = zplversion < version; | |
428870ff | 379 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
380 | } |
381 | return (rc); | |
382 | } | |
383 | ||
384 | static void | |
385 | zfs_log_history(zfs_cmd_t *zc) | |
386 | { | |
387 | spa_t *spa; | |
388 | char *buf; | |
389 | ||
390 | if ((buf = history_str_get(zc)) == NULL) | |
391 | return; | |
392 | ||
393 | if (spa_open(zc->zc_name, &spa, FTAG) == 0) { | |
394 | if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY) | |
6f1ffb06 | 395 | (void) spa_history_log(spa, buf); |
34dc7c2f BB |
396 | spa_close(spa, FTAG); |
397 | } | |
398 | history_str_free(buf); | |
399 | } | |
400 | ||
401 | /* | |
402 | * Policy for top-level read operations (list pools). Requires no privileges, | |
403 | * and can be used in the local zone, as there is no associated dataset. | |
404 | */ | |
405 | /* ARGSUSED */ | |
406 | static int | |
6f1ffb06 | 407 | zfs_secpolicy_none(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
408 | { |
409 | return (0); | |
410 | } | |
411 | ||
412 | /* | |
413 | * Policy for dataset read operations (list children, get statistics). Requires | |
414 | * no privileges, but must be visible in the local zone. | |
415 | */ | |
416 | /* ARGSUSED */ | |
417 | static int | |
6f1ffb06 | 418 | zfs_secpolicy_read(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
419 | { |
420 | if (INGLOBALZONE(curproc) || | |
421 | zone_dataset_visible(zc->zc_name, NULL)) | |
422 | return (0); | |
423 | ||
2e528b49 | 424 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
425 | } |
426 | ||
427 | static int | |
572e2857 | 428 | zfs_dozonecheck_impl(const char *dataset, uint64_t zoned, cred_t *cr) |
34dc7c2f | 429 | { |
34dc7c2f BB |
430 | int writable = 1; |
431 | ||
432 | /* | |
433 | * The dataset must be visible by this zone -- check this first | |
434 | * so they don't see EPERM on something they shouldn't know about. | |
435 | */ | |
436 | if (!INGLOBALZONE(curproc) && | |
437 | !zone_dataset_visible(dataset, &writable)) | |
2e528b49 | 438 | return (SET_ERROR(ENOENT)); |
34dc7c2f | 439 | |
34dc7c2f BB |
440 | if (INGLOBALZONE(curproc)) { |
441 | /* | |
442 | * If the fs is zoned, only root can access it from the | |
443 | * global zone. | |
444 | */ | |
445 | if (secpolicy_zfs(cr) && zoned) | |
2e528b49 | 446 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
447 | } else { |
448 | /* | |
449 | * If we are in a local zone, the 'zoned' property must be set. | |
450 | */ | |
451 | if (!zoned) | |
2e528b49 | 452 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
453 | |
454 | /* must be writable by this zone */ | |
455 | if (!writable) | |
2e528b49 | 456 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
457 | } |
458 | return (0); | |
459 | } | |
460 | ||
572e2857 BB |
461 | static int |
462 | zfs_dozonecheck(const char *dataset, cred_t *cr) | |
463 | { | |
464 | uint64_t zoned; | |
465 | ||
466 | if (dsl_prop_get_integer(dataset, "zoned", &zoned, NULL)) | |
2e528b49 | 467 | return (SET_ERROR(ENOENT)); |
572e2857 BB |
468 | |
469 | return (zfs_dozonecheck_impl(dataset, zoned, cr)); | |
470 | } | |
471 | ||
472 | static int | |
473 | zfs_dozonecheck_ds(const char *dataset, dsl_dataset_t *ds, cred_t *cr) | |
474 | { | |
475 | uint64_t zoned; | |
476 | ||
13fe0198 | 477 | if (dsl_prop_get_int_ds(ds, "zoned", &zoned)) |
2e528b49 | 478 | return (SET_ERROR(ENOENT)); |
572e2857 BB |
479 | |
480 | return (zfs_dozonecheck_impl(dataset, zoned, cr)); | |
481 | } | |
482 | ||
6f1ffb06 | 483 | static int |
13fe0198 MA |
484 | zfs_secpolicy_write_perms_ds(const char *name, dsl_dataset_t *ds, |
485 | const char *perm, cred_t *cr) | |
34dc7c2f BB |
486 | { |
487 | int error; | |
488 | ||
330d06f9 | 489 | error = zfs_dozonecheck_ds(name, ds, cr); |
34dc7c2f BB |
490 | if (error == 0) { |
491 | error = secpolicy_zfs(cr); | |
13fe0198 | 492 | if (error != 0) |
6f1ffb06 | 493 | error = dsl_deleg_access_impl(ds, perm, cr); |
34dc7c2f BB |
494 | } |
495 | return (error); | |
496 | } | |
497 | ||
6f1ffb06 | 498 | static int |
13fe0198 | 499 | zfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr) |
572e2857 BB |
500 | { |
501 | int error; | |
13fe0198 MA |
502 | dsl_dataset_t *ds; |
503 | dsl_pool_t *dp; | |
572e2857 | 504 | |
13fe0198 MA |
505 | error = dsl_pool_hold(name, FTAG, &dp); |
506 | if (error != 0) | |
507 | return (error); | |
508 | ||
509 | error = dsl_dataset_hold(dp, name, FTAG, &ds); | |
510 | if (error != 0) { | |
511 | dsl_pool_rele(dp, FTAG); | |
512 | return (error); | |
572e2857 | 513 | } |
13fe0198 MA |
514 | |
515 | error = zfs_secpolicy_write_perms_ds(name, ds, perm, cr); | |
516 | ||
517 | dsl_dataset_rele(ds, FTAG); | |
518 | dsl_pool_rele(dp, FTAG); | |
572e2857 BB |
519 | return (error); |
520 | } | |
521 | ||
428870ff BB |
522 | /* |
523 | * Policy for setting the security label property. | |
524 | * | |
525 | * Returns 0 for success, non-zero for access and other errors. | |
526 | */ | |
34dc7c2f | 527 | static int |
428870ff | 528 | zfs_set_slabel_policy(const char *name, char *strval, cred_t *cr) |
34dc7c2f | 529 | { |
d2c15e84 | 530 | #ifdef HAVE_MLSLABEL |
428870ff BB |
531 | char ds_hexsl[MAXNAMELEN]; |
532 | bslabel_t ds_sl, new_sl; | |
533 | boolean_t new_default = FALSE; | |
534 | uint64_t zoned; | |
535 | int needed_priv = -1; | |
536 | int error; | |
537 | ||
538 | /* First get the existing dataset label. */ | |
539 | error = dsl_prop_get(name, zfs_prop_to_name(ZFS_PROP_MLSLABEL), | |
540 | 1, sizeof (ds_hexsl), &ds_hexsl, NULL); | |
13fe0198 | 541 | if (error != 0) |
2e528b49 | 542 | return (SET_ERROR(EPERM)); |
428870ff BB |
543 | |
544 | if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) | |
545 | new_default = TRUE; | |
546 | ||
547 | /* The label must be translatable */ | |
548 | if (!new_default && (hexstr_to_label(strval, &new_sl) != 0)) | |
2e528b49 | 549 | return (SET_ERROR(EINVAL)); |
428870ff BB |
550 | |
551 | /* | |
552 | * In a non-global zone, disallow attempts to set a label that | |
553 | * doesn't match that of the zone; otherwise no other checks | |
554 | * are needed. | |
555 | */ | |
556 | if (!INGLOBALZONE(curproc)) { | |
557 | if (new_default || !blequal(&new_sl, CR_SL(CRED()))) | |
2e528b49 | 558 | return (SET_ERROR(EPERM)); |
428870ff BB |
559 | return (0); |
560 | } | |
561 | ||
562 | /* | |
563 | * For global-zone datasets (i.e., those whose zoned property is | |
564 | * "off", verify that the specified new label is valid for the | |
565 | * global zone. | |
566 | */ | |
567 | if (dsl_prop_get_integer(name, | |
568 | zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL)) | |
2e528b49 | 569 | return (SET_ERROR(EPERM)); |
428870ff BB |
570 | if (!zoned) { |
571 | if (zfs_check_global_label(name, strval) != 0) | |
2e528b49 | 572 | return (SET_ERROR(EPERM)); |
428870ff BB |
573 | } |
574 | ||
575 | /* | |
576 | * If the existing dataset label is nondefault, check if the | |
577 | * dataset is mounted (label cannot be changed while mounted). | |
3558fd73 | 578 | * Get the zfs_sb_t; if there isn't one, then the dataset isn't |
428870ff BB |
579 | * mounted (or isn't a dataset, doesn't exist, ...). |
580 | */ | |
581 | if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) != 0) { | |
582 | objset_t *os; | |
583 | static char *setsl_tag = "setsl_tag"; | |
584 | ||
585 | /* | |
586 | * Try to own the dataset; abort if there is any error, | |
587 | * (e.g., already mounted, in use, or other error). | |
588 | */ | |
589 | error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE, | |
590 | setsl_tag, &os); | |
13fe0198 | 591 | if (error != 0) |
2e528b49 | 592 | return (SET_ERROR(EPERM)); |
428870ff BB |
593 | |
594 | dmu_objset_disown(os, setsl_tag); | |
595 | ||
596 | if (new_default) { | |
597 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
598 | goto out_check; | |
599 | } | |
600 | ||
601 | if (hexstr_to_label(strval, &new_sl) != 0) | |
2e528b49 | 602 | return (SET_ERROR(EPERM)); |
428870ff BB |
603 | |
604 | if (blstrictdom(&ds_sl, &new_sl)) | |
605 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
606 | else if (blstrictdom(&new_sl, &ds_sl)) | |
607 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
608 | } else { | |
609 | /* dataset currently has a default label */ | |
610 | if (!new_default) | |
611 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
612 | } | |
613 | ||
614 | out_check: | |
615 | if (needed_priv != -1) | |
616 | return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL)); | |
617 | return (0); | |
d2c15e84 | 618 | #else |
d1d7e268 | 619 | return (ENOTSUP); |
d2c15e84 | 620 | #endif /* HAVE_MLSLABEL */ |
428870ff BB |
621 | } |
622 | ||
623 | static int | |
624 | zfs_secpolicy_setprop(const char *dsname, zfs_prop_t prop, nvpair_t *propval, | |
625 | cred_t *cr) | |
626 | { | |
627 | char *strval; | |
628 | ||
34dc7c2f BB |
629 | /* |
630 | * Check permissions for special properties. | |
631 | */ | |
632 | switch (prop) { | |
e75c13c3 BB |
633 | default: |
634 | break; | |
34dc7c2f BB |
635 | case ZFS_PROP_ZONED: |
636 | /* | |
637 | * Disallow setting of 'zoned' from within a local zone. | |
638 | */ | |
639 | if (!INGLOBALZONE(curproc)) | |
2e528b49 | 640 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
641 | break; |
642 | ||
643 | case ZFS_PROP_QUOTA: | |
788eb90c JJ |
644 | case ZFS_PROP_FILESYSTEM_LIMIT: |
645 | case ZFS_PROP_SNAPSHOT_LIMIT: | |
34dc7c2f BB |
646 | if (!INGLOBALZONE(curproc)) { |
647 | uint64_t zoned; | |
648 | char setpoint[MAXNAMELEN]; | |
649 | /* | |
650 | * Unprivileged users are allowed to modify the | |
788eb90c | 651 | * limit on things *under* (ie. contained by) |
34dc7c2f BB |
652 | * the thing they own. |
653 | */ | |
428870ff | 654 | if (dsl_prop_get_integer(dsname, "zoned", &zoned, |
34dc7c2f | 655 | setpoint)) |
2e528b49 | 656 | return (SET_ERROR(EPERM)); |
428870ff | 657 | if (!zoned || strlen(dsname) <= strlen(setpoint)) |
2e528b49 | 658 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
659 | } |
660 | break; | |
428870ff BB |
661 | |
662 | case ZFS_PROP_MLSLABEL: | |
663 | if (!is_system_labeled()) | |
2e528b49 | 664 | return (SET_ERROR(EPERM)); |
428870ff BB |
665 | |
666 | if (nvpair_value_string(propval, &strval) == 0) { | |
667 | int err; | |
668 | ||
669 | err = zfs_set_slabel_policy(dsname, strval, CRED()); | |
670 | if (err != 0) | |
671 | return (err); | |
672 | } | |
673 | break; | |
34dc7c2f BB |
674 | } |
675 | ||
428870ff | 676 | return (zfs_secpolicy_write_perms(dsname, zfs_prop_to_name(prop), cr)); |
34dc7c2f BB |
677 | } |
678 | ||
6f1ffb06 MA |
679 | /* ARGSUSED */ |
680 | static int | |
681 | zfs_secpolicy_set_fsacl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f BB |
682 | { |
683 | int error; | |
684 | ||
685 | error = zfs_dozonecheck(zc->zc_name, cr); | |
13fe0198 | 686 | if (error != 0) |
34dc7c2f BB |
687 | return (error); |
688 | ||
689 | /* | |
690 | * permission to set permissions will be evaluated later in | |
691 | * dsl_deleg_can_allow() | |
692 | */ | |
693 | return (0); | |
694 | } | |
695 | ||
6f1ffb06 MA |
696 | /* ARGSUSED */ |
697 | static int | |
698 | zfs_secpolicy_rollback(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f | 699 | { |
428870ff BB |
700 | return (zfs_secpolicy_write_perms(zc->zc_name, |
701 | ZFS_DELEG_PERM_ROLLBACK, cr)); | |
34dc7c2f BB |
702 | } |
703 | ||
6f1ffb06 MA |
704 | /* ARGSUSED */ |
705 | static int | |
706 | zfs_secpolicy_send(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f | 707 | { |
572e2857 BB |
708 | dsl_pool_t *dp; |
709 | dsl_dataset_t *ds; | |
710 | char *cp; | |
711 | int error; | |
712 | ||
713 | /* | |
714 | * Generate the current snapshot name from the given objsetid, then | |
715 | * use that name for the secpolicy/zone checks. | |
716 | */ | |
717 | cp = strchr(zc->zc_name, '@'); | |
718 | if (cp == NULL) | |
2e528b49 | 719 | return (SET_ERROR(EINVAL)); |
13fe0198 MA |
720 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
721 | if (error != 0) | |
572e2857 BB |
722 | return (error); |
723 | ||
572e2857 | 724 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds); |
13fe0198 MA |
725 | if (error != 0) { |
726 | dsl_pool_rele(dp, FTAG); | |
572e2857 | 727 | return (error); |
13fe0198 | 728 | } |
572e2857 BB |
729 | |
730 | dsl_dataset_name(ds, zc->zc_name); | |
731 | ||
732 | error = zfs_secpolicy_write_perms_ds(zc->zc_name, ds, | |
733 | ZFS_DELEG_PERM_SEND, cr); | |
734 | dsl_dataset_rele(ds, FTAG); | |
13fe0198 | 735 | dsl_pool_rele(dp, FTAG); |
572e2857 BB |
736 | |
737 | return (error); | |
34dc7c2f BB |
738 | } |
739 | ||
6f1ffb06 MA |
740 | /* ARGSUSED */ |
741 | static int | |
742 | zfs_secpolicy_send_new(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
743 | { | |
744 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
745 | ZFS_DELEG_PERM_SEND, cr)); | |
746 | } | |
747 | ||
3c9609b3 | 748 | #ifdef HAVE_SMB_SHARE |
6f1ffb06 | 749 | /* ARGSUSED */ |
9babb374 | 750 | static int |
6f1ffb06 | 751 | zfs_secpolicy_deleg_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 BB |
752 | { |
753 | vnode_t *vp; | |
754 | int error; | |
755 | ||
756 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
757 | NO_FOLLOW, NULL, &vp)) != 0) | |
758 | return (error); | |
759 | ||
760 | /* Now make sure mntpnt and dataset are ZFS */ | |
761 | ||
762 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
763 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
764 | zc->zc_name) != 0)) { | |
765 | VN_RELE(vp); | |
2e528b49 | 766 | return (SET_ERROR(EPERM)); |
9babb374 BB |
767 | } |
768 | ||
769 | VN_RELE(vp); | |
770 | return (dsl_deleg_access(zc->zc_name, | |
771 | ZFS_DELEG_PERM_SHARE, cr)); | |
772 | } | |
3c9609b3 | 773 | #endif /* HAVE_SMB_SHARE */ |
9babb374 | 774 | |
34dc7c2f | 775 | int |
6f1ffb06 | 776 | zfs_secpolicy_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 777 | { |
3c9609b3 | 778 | #ifdef HAVE_SMB_SHARE |
34dc7c2f | 779 | if (!INGLOBALZONE(curproc)) |
2e528b49 | 780 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
781 | |
782 | if (secpolicy_nfs(cr) == 0) { | |
783 | return (0); | |
784 | } else { | |
6f1ffb06 | 785 | return (zfs_secpolicy_deleg_share(zc, innvl, cr)); |
9babb374 | 786 | } |
325f0235 | 787 | #else |
2e528b49 | 788 | return (SET_ERROR(ENOTSUP)); |
3c9609b3 | 789 | #endif /* HAVE_SMB_SHARE */ |
9babb374 | 790 | } |
34dc7c2f | 791 | |
9babb374 | 792 | int |
6f1ffb06 | 793 | zfs_secpolicy_smb_acl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 794 | { |
3c9609b3 | 795 | #ifdef HAVE_SMB_SHARE |
9babb374 | 796 | if (!INGLOBALZONE(curproc)) |
2e528b49 | 797 | return (SET_ERROR(EPERM)); |
34dc7c2f | 798 | |
9babb374 BB |
799 | if (secpolicy_smb(cr) == 0) { |
800 | return (0); | |
801 | } else { | |
6f1ffb06 | 802 | return (zfs_secpolicy_deleg_share(zc, innvl, cr)); |
34dc7c2f | 803 | } |
325f0235 | 804 | #else |
2e528b49 | 805 | return (SET_ERROR(ENOTSUP)); |
3c9609b3 | 806 | #endif /* HAVE_SMB_SHARE */ |
34dc7c2f BB |
807 | } |
808 | ||
809 | static int | |
810 | zfs_get_parent(const char *datasetname, char *parent, int parentsize) | |
811 | { | |
812 | char *cp; | |
813 | ||
814 | /* | |
815 | * Remove the @bla or /bla from the end of the name to get the parent. | |
816 | */ | |
817 | (void) strncpy(parent, datasetname, parentsize); | |
818 | cp = strrchr(parent, '@'); | |
819 | if (cp != NULL) { | |
820 | cp[0] = '\0'; | |
821 | } else { | |
822 | cp = strrchr(parent, '/'); | |
823 | if (cp == NULL) | |
2e528b49 | 824 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
825 | cp[0] = '\0'; |
826 | } | |
827 | ||
828 | return (0); | |
829 | } | |
830 | ||
831 | int | |
832 | zfs_secpolicy_destroy_perms(const char *name, cred_t *cr) | |
833 | { | |
834 | int error; | |
835 | ||
836 | if ((error = zfs_secpolicy_write_perms(name, | |
837 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
838 | return (error); | |
839 | ||
840 | return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr)); | |
841 | } | |
842 | ||
6f1ffb06 | 843 | /* ARGSUSED */ |
34dc7c2f | 844 | static int |
6f1ffb06 | 845 | zfs_secpolicy_destroy(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
846 | { |
847 | return (zfs_secpolicy_destroy_perms(zc->zc_name, cr)); | |
848 | } | |
849 | ||
850 | /* | |
428870ff | 851 | * Destroying snapshots with delegated permissions requires |
6f1ffb06 | 852 | * descendant mount and destroy permissions. |
34dc7c2f | 853 | */ |
6f1ffb06 | 854 | /* ARGSUSED */ |
34dc7c2f | 855 | static int |
6f1ffb06 | 856 | zfs_secpolicy_destroy_snaps(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 857 | { |
6f1ffb06 MA |
858 | nvlist_t *snaps; |
859 | nvpair_t *pair, *nextpair; | |
860 | int error = 0; | |
428870ff | 861 | |
6f1ffb06 | 862 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) |
2e528b49 | 863 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
864 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; |
865 | pair = nextpair) { | |
6f1ffb06 | 866 | nextpair = nvlist_next_nvpair(snaps, pair); |
da536844 MA |
867 | error = zfs_secpolicy_destroy_perms(nvpair_name(pair), cr); |
868 | if (error == ENOENT) { | |
6f1ffb06 MA |
869 | /* |
870 | * Ignore any snapshots that don't exist (we consider | |
871 | * them "already destroyed"). Remove the name from the | |
872 | * nvl here in case the snapshot is created between | |
873 | * now and when we try to destroy it (in which case | |
874 | * we don't want to destroy it since we haven't | |
875 | * checked for permission). | |
876 | */ | |
877 | fnvlist_remove_nvpair(snaps, pair); | |
878 | error = 0; | |
6f1ffb06 | 879 | } |
6f1ffb06 MA |
880 | if (error != 0) |
881 | break; | |
882 | } | |
428870ff | 883 | |
428870ff | 884 | return (error); |
34dc7c2f BB |
885 | } |
886 | ||
887 | int | |
888 | zfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr) | |
889 | { | |
428870ff | 890 | char parentname[MAXNAMELEN]; |
34dc7c2f BB |
891 | int error; |
892 | ||
893 | if ((error = zfs_secpolicy_write_perms(from, | |
894 | ZFS_DELEG_PERM_RENAME, cr)) != 0) | |
895 | return (error); | |
896 | ||
897 | if ((error = zfs_secpolicy_write_perms(from, | |
898 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
899 | return (error); | |
900 | ||
901 | if ((error = zfs_get_parent(to, parentname, | |
902 | sizeof (parentname))) != 0) | |
903 | return (error); | |
904 | ||
905 | if ((error = zfs_secpolicy_write_perms(parentname, | |
906 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
907 | return (error); | |
908 | ||
909 | if ((error = zfs_secpolicy_write_perms(parentname, | |
910 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
911 | return (error); | |
912 | ||
913 | return (error); | |
914 | } | |
915 | ||
6f1ffb06 | 916 | /* ARGSUSED */ |
34dc7c2f | 917 | static int |
6f1ffb06 | 918 | zfs_secpolicy_rename(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
919 | { |
920 | return (zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr)); | |
921 | } | |
922 | ||
6f1ffb06 | 923 | /* ARGSUSED */ |
34dc7c2f | 924 | static int |
6f1ffb06 | 925 | zfs_secpolicy_promote(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 926 | { |
13fe0198 MA |
927 | dsl_pool_t *dp; |
928 | dsl_dataset_t *clone; | |
34dc7c2f BB |
929 | int error; |
930 | ||
931 | error = zfs_secpolicy_write_perms(zc->zc_name, | |
932 | ZFS_DELEG_PERM_PROMOTE, cr); | |
13fe0198 MA |
933 | if (error != 0) |
934 | return (error); | |
935 | ||
936 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); | |
937 | if (error != 0) | |
34dc7c2f BB |
938 | return (error); |
939 | ||
13fe0198 | 940 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &clone); |
34dc7c2f BB |
941 | |
942 | if (error == 0) { | |
13fe0198 MA |
943 | char parentname[MAXNAMELEN]; |
944 | dsl_dataset_t *origin = NULL; | |
34dc7c2f | 945 | dsl_dir_t *dd; |
13fe0198 | 946 | dd = clone->ds_dir; |
34dc7c2f | 947 | |
b128c09f | 948 | error = dsl_dataset_hold_obj(dd->dd_pool, |
d683ddbb | 949 | dsl_dir_phys(dd)->dd_origin_obj, FTAG, &origin); |
13fe0198 MA |
950 | if (error != 0) { |
951 | dsl_dataset_rele(clone, FTAG); | |
952 | dsl_pool_rele(dp, FTAG); | |
34dc7c2f BB |
953 | return (error); |
954 | } | |
955 | ||
13fe0198 | 956 | error = zfs_secpolicy_write_perms_ds(zc->zc_name, clone, |
34dc7c2f BB |
957 | ZFS_DELEG_PERM_MOUNT, cr); |
958 | ||
13fe0198 MA |
959 | dsl_dataset_name(origin, parentname); |
960 | if (error == 0) { | |
961 | error = zfs_secpolicy_write_perms_ds(parentname, origin, | |
34dc7c2f | 962 | ZFS_DELEG_PERM_PROMOTE, cr); |
13fe0198 MA |
963 | } |
964 | dsl_dataset_rele(clone, FTAG); | |
965 | dsl_dataset_rele(origin, FTAG); | |
34dc7c2f | 966 | } |
13fe0198 | 967 | dsl_pool_rele(dp, FTAG); |
34dc7c2f BB |
968 | return (error); |
969 | } | |
970 | ||
6f1ffb06 | 971 | /* ARGSUSED */ |
34dc7c2f | 972 | static int |
6f1ffb06 | 973 | zfs_secpolicy_recv(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
974 | { |
975 | int error; | |
976 | ||
977 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
978 | ZFS_DELEG_PERM_RECEIVE, cr)) != 0) | |
979 | return (error); | |
980 | ||
981 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
982 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
983 | return (error); | |
984 | ||
985 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
986 | ZFS_DELEG_PERM_CREATE, cr)); | |
987 | } | |
988 | ||
989 | int | |
990 | zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr) | |
991 | { | |
428870ff BB |
992 | return (zfs_secpolicy_write_perms(name, |
993 | ZFS_DELEG_PERM_SNAPSHOT, cr)); | |
34dc7c2f BB |
994 | } |
995 | ||
6f1ffb06 MA |
996 | /* |
997 | * Check for permission to create each snapshot in the nvlist. | |
998 | */ | |
999 | /* ARGSUSED */ | |
34dc7c2f | 1000 | static int |
6f1ffb06 | 1001 | zfs_secpolicy_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 1002 | { |
6f1ffb06 MA |
1003 | nvlist_t *snaps; |
1004 | int error = 0; | |
1005 | nvpair_t *pair; | |
1006 | ||
1007 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) | |
2e528b49 | 1008 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
1009 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; |
1010 | pair = nvlist_next_nvpair(snaps, pair)) { | |
1011 | char *name = nvpair_name(pair); | |
1012 | char *atp = strchr(name, '@'); | |
34dc7c2f | 1013 | |
6f1ffb06 | 1014 | if (atp == NULL) { |
2e528b49 | 1015 | error = SET_ERROR(EINVAL); |
6f1ffb06 MA |
1016 | break; |
1017 | } | |
1018 | *atp = '\0'; | |
1019 | error = zfs_secpolicy_snapshot_perms(name, cr); | |
1020 | *atp = '@'; | |
1021 | if (error != 0) | |
1022 | break; | |
1023 | } | |
1024 | return (error); | |
1025 | } | |
1026 | ||
da536844 MA |
1027 | /* |
1028 | * Check for permission to create each snapshot in the nvlist. | |
1029 | */ | |
1030 | /* ARGSUSED */ | |
1031 | static int | |
1032 | zfs_secpolicy_bookmark(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1033 | { | |
1034 | int error = 0; | |
1035 | nvpair_t *pair; | |
1036 | ||
1037 | for (pair = nvlist_next_nvpair(innvl, NULL); | |
1038 | pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { | |
1039 | char *name = nvpair_name(pair); | |
1040 | char *hashp = strchr(name, '#'); | |
1041 | ||
1042 | if (hashp == NULL) { | |
1043 | error = SET_ERROR(EINVAL); | |
1044 | break; | |
1045 | } | |
1046 | *hashp = '\0'; | |
1047 | error = zfs_secpolicy_write_perms(name, | |
1048 | ZFS_DELEG_PERM_BOOKMARK, cr); | |
1049 | *hashp = '#'; | |
1050 | if (error != 0) | |
1051 | break; | |
1052 | } | |
1053 | return (error); | |
1054 | } | |
1055 | ||
1056 | /* ARGSUSED */ | |
1057 | static int | |
1058 | zfs_secpolicy_destroy_bookmarks(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1059 | { | |
1060 | nvpair_t *pair, *nextpair; | |
1061 | int error = 0; | |
1062 | ||
1063 | for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL; | |
1064 | pair = nextpair) { | |
1065 | char *name = nvpair_name(pair); | |
1066 | char *hashp = strchr(name, '#'); | |
1067 | nextpair = nvlist_next_nvpair(innvl, pair); | |
1068 | ||
1069 | if (hashp == NULL) { | |
1070 | error = SET_ERROR(EINVAL); | |
1071 | break; | |
1072 | } | |
1073 | ||
1074 | *hashp = '\0'; | |
1075 | error = zfs_secpolicy_write_perms(name, | |
1076 | ZFS_DELEG_PERM_DESTROY, cr); | |
1077 | *hashp = '#'; | |
1078 | if (error == ENOENT) { | |
1079 | /* | |
1080 | * Ignore any filesystems that don't exist (we consider | |
1081 | * their bookmarks "already destroyed"). Remove | |
1082 | * the name from the nvl here in case the filesystem | |
1083 | * is created between now and when we try to destroy | |
1084 | * the bookmark (in which case we don't want to | |
1085 | * destroy it since we haven't checked for permission). | |
1086 | */ | |
1087 | fnvlist_remove_nvpair(innvl, pair); | |
1088 | error = 0; | |
1089 | } | |
1090 | if (error != 0) | |
1091 | break; | |
1092 | } | |
1093 | ||
1094 | return (error); | |
1095 | } | |
1096 | ||
6f1ffb06 MA |
1097 | /* ARGSUSED */ |
1098 | static int | |
1099 | zfs_secpolicy_log_history(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1100 | { | |
1101 | /* | |
1102 | * Even root must have a proper TSD so that we know what pool | |
1103 | * to log to. | |
1104 | */ | |
1105 | if (tsd_get(zfs_allow_log_key) == NULL) | |
2e528b49 | 1106 | return (SET_ERROR(EPERM)); |
6f1ffb06 | 1107 | return (0); |
34dc7c2f BB |
1108 | } |
1109 | ||
1110 | static int | |
6f1ffb06 | 1111 | zfs_secpolicy_create_clone(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 1112 | { |
428870ff BB |
1113 | char parentname[MAXNAMELEN]; |
1114 | int error; | |
6f1ffb06 | 1115 | char *origin; |
34dc7c2f BB |
1116 | |
1117 | if ((error = zfs_get_parent(zc->zc_name, parentname, | |
1118 | sizeof (parentname))) != 0) | |
1119 | return (error); | |
1120 | ||
6f1ffb06 MA |
1121 | if (nvlist_lookup_string(innvl, "origin", &origin) == 0 && |
1122 | (error = zfs_secpolicy_write_perms(origin, | |
1123 | ZFS_DELEG_PERM_CLONE, cr)) != 0) | |
1124 | return (error); | |
34dc7c2f BB |
1125 | |
1126 | if ((error = zfs_secpolicy_write_perms(parentname, | |
1127 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
1128 | return (error); | |
1129 | ||
6f1ffb06 MA |
1130 | return (zfs_secpolicy_write_perms(parentname, |
1131 | ZFS_DELEG_PERM_MOUNT, cr)); | |
34dc7c2f BB |
1132 | } |
1133 | ||
34dc7c2f BB |
1134 | /* |
1135 | * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires | |
1136 | * SYS_CONFIG privilege, which is not available in a local zone. | |
1137 | */ | |
1138 | /* ARGSUSED */ | |
1139 | static int | |
6f1ffb06 | 1140 | zfs_secpolicy_config(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1141 | { |
1142 | if (secpolicy_sys_config(cr, B_FALSE) != 0) | |
2e528b49 | 1143 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
1144 | |
1145 | return (0); | |
1146 | } | |
1147 | ||
572e2857 BB |
1148 | /* |
1149 | * Policy for object to name lookups. | |
1150 | */ | |
1151 | /* ARGSUSED */ | |
1152 | static int | |
6f1ffb06 | 1153 | zfs_secpolicy_diff(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
572e2857 BB |
1154 | { |
1155 | int error; | |
1156 | ||
1157 | if ((error = secpolicy_sys_config(cr, B_FALSE)) == 0) | |
1158 | return (0); | |
1159 | ||
1160 | error = zfs_secpolicy_write_perms(zc->zc_name, ZFS_DELEG_PERM_DIFF, cr); | |
1161 | return (error); | |
1162 | } | |
1163 | ||
34dc7c2f BB |
1164 | /* |
1165 | * Policy for fault injection. Requires all privileges. | |
1166 | */ | |
1167 | /* ARGSUSED */ | |
1168 | static int | |
6f1ffb06 | 1169 | zfs_secpolicy_inject(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1170 | { |
1171 | return (secpolicy_zinject(cr)); | |
1172 | } | |
1173 | ||
6f1ffb06 | 1174 | /* ARGSUSED */ |
34dc7c2f | 1175 | static int |
6f1ffb06 | 1176 | zfs_secpolicy_inherit_prop(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1177 | { |
1178 | zfs_prop_t prop = zfs_name_to_prop(zc->zc_value); | |
1179 | ||
1180 | if (prop == ZPROP_INVAL) { | |
1181 | if (!zfs_prop_user(zc->zc_value)) | |
2e528b49 | 1182 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1183 | return (zfs_secpolicy_write_perms(zc->zc_name, |
1184 | ZFS_DELEG_PERM_USERPROP, cr)); | |
1185 | } else { | |
428870ff BB |
1186 | return (zfs_secpolicy_setprop(zc->zc_name, prop, |
1187 | NULL, cr)); | |
34dc7c2f BB |
1188 | } |
1189 | } | |
1190 | ||
9babb374 | 1191 | static int |
6f1ffb06 | 1192 | zfs_secpolicy_userspace_one(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1193 | { |
6f1ffb06 | 1194 | int err = zfs_secpolicy_read(zc, innvl, cr); |
9babb374 BB |
1195 | if (err) |
1196 | return (err); | |
1197 | ||
1198 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
2e528b49 | 1199 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
1200 | |
1201 | if (zc->zc_value[0] == 0) { | |
1202 | /* | |
1203 | * They are asking about a posix uid/gid. If it's | |
1204 | * themself, allow it. | |
1205 | */ | |
1206 | if (zc->zc_objset_type == ZFS_PROP_USERUSED || | |
1207 | zc->zc_objset_type == ZFS_PROP_USERQUOTA) { | |
1208 | if (zc->zc_guid == crgetuid(cr)) | |
1209 | return (0); | |
1210 | } else { | |
1211 | if (groupmember(zc->zc_guid, cr)) | |
1212 | return (0); | |
1213 | } | |
1214 | } | |
1215 | ||
1216 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
1217 | userquota_perms[zc->zc_objset_type], cr)); | |
1218 | } | |
1219 | ||
1220 | static int | |
6f1ffb06 | 1221 | zfs_secpolicy_userspace_many(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1222 | { |
6f1ffb06 | 1223 | int err = zfs_secpolicy_read(zc, innvl, cr); |
9babb374 BB |
1224 | if (err) |
1225 | return (err); | |
1226 | ||
1227 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
2e528b49 | 1228 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
1229 | |
1230 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
1231 | userquota_perms[zc->zc_objset_type], cr)); | |
1232 | } | |
1233 | ||
6f1ffb06 | 1234 | /* ARGSUSED */ |
9babb374 | 1235 | static int |
6f1ffb06 | 1236 | zfs_secpolicy_userspace_upgrade(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1237 | { |
428870ff BB |
1238 | return (zfs_secpolicy_setprop(zc->zc_name, ZFS_PROP_VERSION, |
1239 | NULL, cr)); | |
9babb374 BB |
1240 | } |
1241 | ||
6f1ffb06 | 1242 | /* ARGSUSED */ |
45d1cae3 | 1243 | static int |
6f1ffb06 | 1244 | zfs_secpolicy_hold(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
45d1cae3 | 1245 | { |
13fe0198 MA |
1246 | nvpair_t *pair; |
1247 | nvlist_t *holds; | |
1248 | int error; | |
1249 | ||
1250 | error = nvlist_lookup_nvlist(innvl, "holds", &holds); | |
1251 | if (error != 0) | |
2e528b49 | 1252 | return (SET_ERROR(EINVAL)); |
13fe0198 MA |
1253 | |
1254 | for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL; | |
1255 | pair = nvlist_next_nvpair(holds, pair)) { | |
1256 | char fsname[MAXNAMELEN]; | |
1257 | error = dmu_fsname(nvpair_name(pair), fsname); | |
1258 | if (error != 0) | |
1259 | return (error); | |
1260 | error = zfs_secpolicy_write_perms(fsname, | |
1261 | ZFS_DELEG_PERM_HOLD, cr); | |
1262 | if (error != 0) | |
1263 | return (error); | |
1264 | } | |
1265 | return (0); | |
45d1cae3 BB |
1266 | } |
1267 | ||
6f1ffb06 | 1268 | /* ARGSUSED */ |
45d1cae3 | 1269 | static int |
6f1ffb06 | 1270 | zfs_secpolicy_release(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
45d1cae3 | 1271 | { |
13fe0198 MA |
1272 | nvpair_t *pair; |
1273 | int error; | |
1274 | ||
1275 | for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL; | |
1276 | pair = nvlist_next_nvpair(innvl, pair)) { | |
1277 | char fsname[MAXNAMELEN]; | |
1278 | error = dmu_fsname(nvpair_name(pair), fsname); | |
1279 | if (error != 0) | |
1280 | return (error); | |
1281 | error = zfs_secpolicy_write_perms(fsname, | |
1282 | ZFS_DELEG_PERM_RELEASE, cr); | |
1283 | if (error != 0) | |
1284 | return (error); | |
1285 | } | |
1286 | return (0); | |
45d1cae3 BB |
1287 | } |
1288 | ||
572e2857 BB |
1289 | /* |
1290 | * Policy for allowing temporary snapshots to be taken or released | |
1291 | */ | |
1292 | static int | |
6f1ffb06 | 1293 | zfs_secpolicy_tmp_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
572e2857 BB |
1294 | { |
1295 | /* | |
1296 | * A temporary snapshot is the same as a snapshot, | |
1297 | * hold, destroy and release all rolled into one. | |
1298 | * Delegated diff alone is sufficient that we allow this. | |
1299 | */ | |
1300 | int error; | |
1301 | ||
1302 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
1303 | ZFS_DELEG_PERM_DIFF, cr)) == 0) | |
1304 | return (0); | |
1305 | ||
6f1ffb06 | 1306 | error = zfs_secpolicy_snapshot_perms(zc->zc_name, cr); |
13fe0198 | 1307 | if (error == 0) |
6f1ffb06 | 1308 | error = zfs_secpolicy_hold(zc, innvl, cr); |
13fe0198 | 1309 | if (error == 0) |
6f1ffb06 | 1310 | error = zfs_secpolicy_release(zc, innvl, cr); |
13fe0198 | 1311 | if (error == 0) |
6f1ffb06 | 1312 | error = zfs_secpolicy_destroy(zc, innvl, cr); |
572e2857 BB |
1313 | return (error); |
1314 | } | |
1315 | ||
34dc7c2f BB |
1316 | /* |
1317 | * Returns the nvlist as specified by the user in the zfs_cmd_t. | |
1318 | */ | |
1319 | static int | |
9babb374 | 1320 | get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp) |
34dc7c2f BB |
1321 | { |
1322 | char *packed; | |
1323 | int error; | |
1324 | nvlist_t *list = NULL; | |
1325 | ||
1326 | /* | |
1327 | * Read in and unpack the user-supplied nvlist. | |
1328 | */ | |
1329 | if (size == 0) | |
2e528b49 | 1330 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 1331 | |
77aef6f6 | 1332 | packed = vmem_alloc(size, KM_SLEEP); |
34dc7c2f | 1333 | |
9babb374 BB |
1334 | if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size, |
1335 | iflag)) != 0) { | |
77aef6f6 | 1336 | vmem_free(packed, size); |
34dc7c2f BB |
1337 | return (error); |
1338 | } | |
1339 | ||
1340 | if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) { | |
77aef6f6 | 1341 | vmem_free(packed, size); |
34dc7c2f BB |
1342 | return (error); |
1343 | } | |
1344 | ||
77aef6f6 | 1345 | vmem_free(packed, size); |
34dc7c2f BB |
1346 | |
1347 | *nvp = list; | |
1348 | return (0); | |
1349 | } | |
1350 | ||
6f1ffb06 MA |
1351 | /* |
1352 | * Reduce the size of this nvlist until it can be serialized in 'max' bytes. | |
1353 | * Entries will be removed from the end of the nvlist, and one int32 entry | |
1354 | * named "N_MORE_ERRORS" will be added indicating how many entries were | |
1355 | * removed. | |
1356 | */ | |
428870ff | 1357 | static int |
6f1ffb06 | 1358 | nvlist_smush(nvlist_t *errors, size_t max) |
428870ff BB |
1359 | { |
1360 | size_t size; | |
1361 | ||
6f1ffb06 | 1362 | size = fnvlist_size(errors); |
428870ff | 1363 | |
6f1ffb06 | 1364 | if (size > max) { |
428870ff BB |
1365 | nvpair_t *more_errors; |
1366 | int n = 0; | |
1367 | ||
6f1ffb06 | 1368 | if (max < 1024) |
2e528b49 | 1369 | return (SET_ERROR(ENOMEM)); |
428870ff | 1370 | |
6f1ffb06 MA |
1371 | fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, 0); |
1372 | more_errors = nvlist_prev_nvpair(errors, NULL); | |
428870ff BB |
1373 | |
1374 | do { | |
6f1ffb06 | 1375 | nvpair_t *pair = nvlist_prev_nvpair(errors, |
428870ff | 1376 | more_errors); |
6f1ffb06 | 1377 | fnvlist_remove_nvpair(errors, pair); |
428870ff | 1378 | n++; |
6f1ffb06 MA |
1379 | size = fnvlist_size(errors); |
1380 | } while (size > max); | |
428870ff | 1381 | |
6f1ffb06 MA |
1382 | fnvlist_remove_nvpair(errors, more_errors); |
1383 | fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, n); | |
1384 | ASSERT3U(fnvlist_size(errors), <=, max); | |
428870ff BB |
1385 | } |
1386 | ||
1387 | return (0); | |
1388 | } | |
1389 | ||
34dc7c2f BB |
1390 | static int |
1391 | put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl) | |
1392 | { | |
1393 | char *packed = NULL; | |
428870ff | 1394 | int error = 0; |
34dc7c2f | 1395 | size_t size; |
34dc7c2f | 1396 | |
6f1ffb06 | 1397 | size = fnvlist_size(nvl); |
34dc7c2f BB |
1398 | |
1399 | if (size > zc->zc_nvlist_dst_size) { | |
2e528b49 | 1400 | error = SET_ERROR(ENOMEM); |
34dc7c2f | 1401 | } else { |
6f1ffb06 | 1402 | packed = fnvlist_pack(nvl, &size); |
428870ff BB |
1403 | if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst, |
1404 | size, zc->zc_iflags) != 0) | |
2e528b49 | 1405 | error = SET_ERROR(EFAULT); |
6f1ffb06 | 1406 | fnvlist_pack_free(packed, size); |
34dc7c2f BB |
1407 | } |
1408 | ||
1409 | zc->zc_nvlist_dst_size = size; | |
6f1ffb06 | 1410 | zc->zc_nvlist_dst_filled = B_TRUE; |
34dc7c2f BB |
1411 | return (error); |
1412 | } | |
1413 | ||
9babb374 | 1414 | static int |
3558fd73 | 1415 | get_zfs_sb(const char *dsname, zfs_sb_t **zsbp) |
9babb374 BB |
1416 | { |
1417 | objset_t *os; | |
1418 | int error; | |
1419 | ||
428870ff | 1420 | error = dmu_objset_hold(dsname, FTAG, &os); |
13fe0198 | 1421 | if (error != 0) |
9babb374 | 1422 | return (error); |
428870ff BB |
1423 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
1424 | dmu_objset_rele(os, FTAG); | |
2e528b49 | 1425 | return (SET_ERROR(EINVAL)); |
428870ff | 1426 | } |
9babb374 | 1427 | |
428870ff | 1428 | mutex_enter(&os->os_user_ptr_lock); |
3558fd73 | 1429 | *zsbp = dmu_objset_get_user(os); |
2cf7f52b | 1430 | if (*zsbp && (*zsbp)->z_sb) { |
61f218b0 | 1431 | atomic_inc(&((*zsbp)->z_sb->s_active)); |
9babb374 | 1432 | } else { |
2e528b49 | 1433 | error = SET_ERROR(ESRCH); |
9babb374 | 1434 | } |
428870ff BB |
1435 | mutex_exit(&os->os_user_ptr_lock); |
1436 | dmu_objset_rele(os, FTAG); | |
9babb374 BB |
1437 | return (error); |
1438 | } | |
1439 | ||
1440 | /* | |
3558fd73 | 1441 | * Find a zfs_sb_t for a mounted filesystem, or create our own, in which |
2cf7f52b | 1442 | * case its z_sb will be NULL, and it will be opened as the owner. |
9ae529ec CS |
1443 | * If 'writer' is set, the z_teardown_lock will be held for RW_WRITER, |
1444 | * which prevents all inode ops from running. | |
9babb374 BB |
1445 | */ |
1446 | static int | |
3558fd73 | 1447 | zfs_sb_hold(const char *name, void *tag, zfs_sb_t **zsbp, boolean_t writer) |
9babb374 BB |
1448 | { |
1449 | int error = 0; | |
9babb374 | 1450 | |
3558fd73 BB |
1451 | if (get_zfs_sb(name, zsbp) != 0) |
1452 | error = zfs_sb_create(name, zsbp); | |
9babb374 | 1453 | if (error == 0) { |
3558fd73 | 1454 | rrw_enter(&(*zsbp)->z_teardown_lock, (writer) ? RW_WRITER : |
572e2857 | 1455 | RW_READER, tag); |
3558fd73 | 1456 | if ((*zsbp)->z_unmounted) { |
9babb374 BB |
1457 | /* |
1458 | * XXX we could probably try again, since the unmounting | |
1459 | * thread should be just about to disassociate the | |
831baf06 | 1460 | * objset from the zsb. |
9babb374 | 1461 | */ |
3558fd73 | 1462 | rrw_exit(&(*zsbp)->z_teardown_lock, tag); |
2e528b49 | 1463 | return (SET_ERROR(EBUSY)); |
9babb374 BB |
1464 | } |
1465 | } | |
1466 | return (error); | |
1467 | } | |
1468 | ||
1469 | static void | |
3558fd73 | 1470 | zfs_sb_rele(zfs_sb_t *zsb, void *tag) |
9babb374 | 1471 | { |
3558fd73 | 1472 | rrw_exit(&zsb->z_teardown_lock, tag); |
9babb374 | 1473 | |
2cf7f52b BB |
1474 | if (zsb->z_sb) { |
1475 | deactivate_super(zsb->z_sb); | |
9babb374 | 1476 | } else { |
3558fd73 BB |
1477 | dmu_objset_disown(zsb->z_os, zsb); |
1478 | zfs_sb_free(zsb); | |
9babb374 BB |
1479 | } |
1480 | } | |
1481 | ||
34dc7c2f BB |
1482 | static int |
1483 | zfs_ioc_pool_create(zfs_cmd_t *zc) | |
1484 | { | |
1485 | int error; | |
1486 | nvlist_t *config, *props = NULL; | |
b128c09f BB |
1487 | nvlist_t *rootprops = NULL; |
1488 | nvlist_t *zplprops = NULL; | |
34dc7c2f | 1489 | |
c65aa5b2 BB |
1490 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, |
1491 | zc->zc_iflags, &config))) | |
34dc7c2f BB |
1492 | return (error); |
1493 | ||
1494 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1495 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1496 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1497 | nvlist_free(config); |
1498 | return (error); | |
1499 | } | |
1500 | ||
b128c09f BB |
1501 | if (props) { |
1502 | nvlist_t *nvl = NULL; | |
1503 | uint64_t version = SPA_VERSION; | |
1504 | ||
1505 | (void) nvlist_lookup_uint64(props, | |
1506 | zpool_prop_to_name(ZPOOL_PROP_VERSION), &version); | |
9ae529ec | 1507 | if (!SPA_VERSION_IS_SUPPORTED(version)) { |
2e528b49 | 1508 | error = SET_ERROR(EINVAL); |
b128c09f BB |
1509 | goto pool_props_bad; |
1510 | } | |
1511 | (void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl); | |
1512 | if (nvl) { | |
1513 | error = nvlist_dup(nvl, &rootprops, KM_SLEEP); | |
1514 | if (error != 0) { | |
1515 | nvlist_free(config); | |
1516 | nvlist_free(props); | |
1517 | return (error); | |
1518 | } | |
1519 | (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS); | |
1520 | } | |
1521 | VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
1522 | error = zfs_fill_zplprops_root(version, rootprops, | |
1523 | zplprops, NULL); | |
13fe0198 | 1524 | if (error != 0) |
b128c09f BB |
1525 | goto pool_props_bad; |
1526 | } | |
1527 | ||
6f1ffb06 | 1528 | error = spa_create(zc->zc_name, config, props, zplprops); |
b128c09f BB |
1529 | |
1530 | /* | |
1531 | * Set the remaining root properties | |
1532 | */ | |
428870ff BB |
1533 | if (!error && (error = zfs_set_prop_nvlist(zc->zc_name, |
1534 | ZPROP_SRC_LOCAL, rootprops, NULL)) != 0) | |
b128c09f | 1535 | (void) spa_destroy(zc->zc_name); |
34dc7c2f | 1536 | |
b128c09f BB |
1537 | pool_props_bad: |
1538 | nvlist_free(rootprops); | |
1539 | nvlist_free(zplprops); | |
34dc7c2f | 1540 | nvlist_free(config); |
b128c09f | 1541 | nvlist_free(props); |
34dc7c2f BB |
1542 | |
1543 | return (error); | |
1544 | } | |
1545 | ||
1546 | static int | |
1547 | zfs_ioc_pool_destroy(zfs_cmd_t *zc) | |
1548 | { | |
1549 | int error; | |
1550 | zfs_log_history(zc); | |
1551 | error = spa_destroy(zc->zc_name); | |
428870ff BB |
1552 | if (error == 0) |
1553 | zvol_remove_minors(zc->zc_name); | |
34dc7c2f BB |
1554 | return (error); |
1555 | } | |
1556 | ||
1557 | static int | |
1558 | zfs_ioc_pool_import(zfs_cmd_t *zc) | |
1559 | { | |
34dc7c2f BB |
1560 | nvlist_t *config, *props = NULL; |
1561 | uint64_t guid; | |
428870ff | 1562 | int error; |
34dc7c2f BB |
1563 | |
1564 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1565 | zc->zc_iflags, &config)) != 0) |
34dc7c2f BB |
1566 | return (error); |
1567 | ||
1568 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1569 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1570 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1571 | nvlist_free(config); |
1572 | return (error); | |
1573 | } | |
1574 | ||
1575 | if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 || | |
1576 | guid != zc->zc_guid) | |
2e528b49 | 1577 | error = SET_ERROR(EINVAL); |
34dc7c2f | 1578 | else |
572e2857 | 1579 | error = spa_import(zc->zc_name, config, props, zc->zc_cookie); |
34dc7c2f | 1580 | |
572e2857 BB |
1581 | if (zc->zc_nvlist_dst != 0) { |
1582 | int err; | |
1583 | ||
1584 | if ((err = put_nvlist(zc, config)) != 0) | |
1585 | error = err; | |
1586 | } | |
428870ff | 1587 | |
34dc7c2f BB |
1588 | nvlist_free(config); |
1589 | ||
1590 | if (props) | |
1591 | nvlist_free(props); | |
1592 | ||
1593 | return (error); | |
1594 | } | |
1595 | ||
1596 | static int | |
1597 | zfs_ioc_pool_export(zfs_cmd_t *zc) | |
1598 | { | |
1599 | int error; | |
b128c09f | 1600 | boolean_t force = (boolean_t)zc->zc_cookie; |
fb5f0bc8 | 1601 | boolean_t hardforce = (boolean_t)zc->zc_guid; |
b128c09f | 1602 | |
34dc7c2f | 1603 | zfs_log_history(zc); |
fb5f0bc8 | 1604 | error = spa_export(zc->zc_name, NULL, force, hardforce); |
428870ff BB |
1605 | if (error == 0) |
1606 | zvol_remove_minors(zc->zc_name); | |
34dc7c2f BB |
1607 | return (error); |
1608 | } | |
1609 | ||
1610 | static int | |
1611 | zfs_ioc_pool_configs(zfs_cmd_t *zc) | |
1612 | { | |
1613 | nvlist_t *configs; | |
1614 | int error; | |
1615 | ||
1616 | if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL) | |
2e528b49 | 1617 | return (SET_ERROR(EEXIST)); |
34dc7c2f BB |
1618 | |
1619 | error = put_nvlist(zc, configs); | |
1620 | ||
1621 | nvlist_free(configs); | |
1622 | ||
1623 | return (error); | |
1624 | } | |
1625 | ||
9ae529ec CS |
1626 | /* |
1627 | * inputs: | |
1628 | * zc_name name of the pool | |
1629 | * | |
1630 | * outputs: | |
1631 | * zc_cookie real errno | |
1632 | * zc_nvlist_dst config nvlist | |
1633 | * zc_nvlist_dst_size size of config nvlist | |
1634 | */ | |
34dc7c2f BB |
1635 | static int |
1636 | zfs_ioc_pool_stats(zfs_cmd_t *zc) | |
1637 | { | |
1638 | nvlist_t *config; | |
1639 | int error; | |
1640 | int ret = 0; | |
1641 | ||
1642 | error = spa_get_stats(zc->zc_name, &config, zc->zc_value, | |
1643 | sizeof (zc->zc_value)); | |
1644 | ||
1645 | if (config != NULL) { | |
1646 | ret = put_nvlist(zc, config); | |
1647 | nvlist_free(config); | |
1648 | ||
1649 | /* | |
1650 | * The config may be present even if 'error' is non-zero. | |
1651 | * In this case we return success, and preserve the real errno | |
1652 | * in 'zc_cookie'. | |
1653 | */ | |
1654 | zc->zc_cookie = error; | |
1655 | } else { | |
1656 | ret = error; | |
1657 | } | |
1658 | ||
1659 | return (ret); | |
1660 | } | |
1661 | ||
1662 | /* | |
1663 | * Try to import the given pool, returning pool stats as appropriate so that | |
1664 | * user land knows which devices are available and overall pool health. | |
1665 | */ | |
1666 | static int | |
1667 | zfs_ioc_pool_tryimport(zfs_cmd_t *zc) | |
1668 | { | |
1669 | nvlist_t *tryconfig, *config; | |
1670 | int error; | |
1671 | ||
1672 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1673 | zc->zc_iflags, &tryconfig)) != 0) |
34dc7c2f BB |
1674 | return (error); |
1675 | ||
1676 | config = spa_tryimport(tryconfig); | |
1677 | ||
1678 | nvlist_free(tryconfig); | |
1679 | ||
1680 | if (config == NULL) | |
2e528b49 | 1681 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1682 | |
1683 | error = put_nvlist(zc, config); | |
1684 | nvlist_free(config); | |
1685 | ||
1686 | return (error); | |
1687 | } | |
1688 | ||
428870ff BB |
1689 | /* |
1690 | * inputs: | |
1691 | * zc_name name of the pool | |
1692 | * zc_cookie scan func (pool_scan_func_t) | |
1693 | */ | |
34dc7c2f | 1694 | static int |
428870ff | 1695 | zfs_ioc_pool_scan(zfs_cmd_t *zc) |
34dc7c2f BB |
1696 | { |
1697 | spa_t *spa; | |
1698 | int error; | |
1699 | ||
1700 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1701 | return (error); | |
1702 | ||
428870ff BB |
1703 | if (zc->zc_cookie == POOL_SCAN_NONE) |
1704 | error = spa_scan_stop(spa); | |
1705 | else | |
1706 | error = spa_scan(spa, zc->zc_cookie); | |
34dc7c2f BB |
1707 | |
1708 | spa_close(spa, FTAG); | |
1709 | ||
1710 | return (error); | |
1711 | } | |
1712 | ||
1713 | static int | |
1714 | zfs_ioc_pool_freeze(zfs_cmd_t *zc) | |
1715 | { | |
1716 | spa_t *spa; | |
1717 | int error; | |
1718 | ||
1719 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1720 | if (error == 0) { | |
1721 | spa_freeze(spa); | |
1722 | spa_close(spa, FTAG); | |
1723 | } | |
1724 | return (error); | |
1725 | } | |
1726 | ||
1727 | static int | |
1728 | zfs_ioc_pool_upgrade(zfs_cmd_t *zc) | |
1729 | { | |
1730 | spa_t *spa; | |
1731 | int error; | |
1732 | ||
1733 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1734 | return (error); | |
1735 | ||
9ae529ec CS |
1736 | if (zc->zc_cookie < spa_version(spa) || |
1737 | !SPA_VERSION_IS_SUPPORTED(zc->zc_cookie)) { | |
34dc7c2f | 1738 | spa_close(spa, FTAG); |
2e528b49 | 1739 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1740 | } |
1741 | ||
1742 | spa_upgrade(spa, zc->zc_cookie); | |
1743 | spa_close(spa, FTAG); | |
1744 | ||
1745 | return (error); | |
1746 | } | |
1747 | ||
1748 | static int | |
1749 | zfs_ioc_pool_get_history(zfs_cmd_t *zc) | |
1750 | { | |
1751 | spa_t *spa; | |
1752 | char *hist_buf; | |
1753 | uint64_t size; | |
1754 | int error; | |
1755 | ||
1756 | if ((size = zc->zc_history_len) == 0) | |
2e528b49 | 1757 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1758 | |
1759 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1760 | return (error); | |
1761 | ||
1762 | if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { | |
1763 | spa_close(spa, FTAG); | |
2e528b49 | 1764 | return (SET_ERROR(ENOTSUP)); |
34dc7c2f BB |
1765 | } |
1766 | ||
34b84cb8 | 1767 | hist_buf = vmem_alloc(size, KM_SLEEP); |
34dc7c2f BB |
1768 | if ((error = spa_history_get(spa, &zc->zc_history_offset, |
1769 | &zc->zc_history_len, hist_buf)) == 0) { | |
9babb374 BB |
1770 | error = ddi_copyout(hist_buf, |
1771 | (void *)(uintptr_t)zc->zc_history, | |
1772 | zc->zc_history_len, zc->zc_iflags); | |
34dc7c2f BB |
1773 | } |
1774 | ||
1775 | spa_close(spa, FTAG); | |
34b84cb8 | 1776 | vmem_free(hist_buf, size); |
34dc7c2f BB |
1777 | return (error); |
1778 | } | |
1779 | ||
3541dc6d GA |
1780 | static int |
1781 | zfs_ioc_pool_reguid(zfs_cmd_t *zc) | |
1782 | { | |
1783 | spa_t *spa; | |
1784 | int error; | |
1785 | ||
1786 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1787 | if (error == 0) { | |
1788 | error = spa_change_guid(spa); | |
1789 | spa_close(spa, FTAG); | |
1790 | } | |
1791 | return (error); | |
1792 | } | |
1793 | ||
34dc7c2f BB |
1794 | static int |
1795 | zfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc) | |
1796 | { | |
13fe0198 | 1797 | return (dsl_dsobj_to_dsname(zc->zc_name, zc->zc_obj, zc->zc_value)); |
34dc7c2f BB |
1798 | } |
1799 | ||
428870ff BB |
1800 | /* |
1801 | * inputs: | |
1802 | * zc_name name of filesystem | |
1803 | * zc_obj object to find | |
1804 | * | |
1805 | * outputs: | |
1806 | * zc_value name of object | |
1807 | */ | |
34dc7c2f BB |
1808 | static int |
1809 | zfs_ioc_obj_to_path(zfs_cmd_t *zc) | |
1810 | { | |
428870ff | 1811 | objset_t *os; |
34dc7c2f BB |
1812 | int error; |
1813 | ||
428870ff BB |
1814 | /* XXX reading from objset not owned */ |
1815 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) | |
34dc7c2f | 1816 | return (error); |
428870ff BB |
1817 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
1818 | dmu_objset_rele(os, FTAG); | |
2e528b49 | 1819 | return (SET_ERROR(EINVAL)); |
428870ff BB |
1820 | } |
1821 | error = zfs_obj_to_path(os, zc->zc_obj, zc->zc_value, | |
34dc7c2f | 1822 | sizeof (zc->zc_value)); |
428870ff | 1823 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
1824 | |
1825 | return (error); | |
1826 | } | |
1827 | ||
572e2857 BB |
1828 | /* |
1829 | * inputs: | |
1830 | * zc_name name of filesystem | |
1831 | * zc_obj object to find | |
1832 | * | |
1833 | * outputs: | |
1834 | * zc_stat stats on object | |
1835 | * zc_value path to object | |
1836 | */ | |
1837 | static int | |
1838 | zfs_ioc_obj_to_stats(zfs_cmd_t *zc) | |
1839 | { | |
1840 | objset_t *os; | |
1841 | int error; | |
1842 | ||
1843 | /* XXX reading from objset not owned */ | |
1844 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) | |
1845 | return (error); | |
1846 | if (dmu_objset_type(os) != DMU_OST_ZFS) { | |
1847 | dmu_objset_rele(os, FTAG); | |
2e528b49 | 1848 | return (SET_ERROR(EINVAL)); |
572e2857 BB |
1849 | } |
1850 | error = zfs_obj_to_stats(os, zc->zc_obj, &zc->zc_stat, zc->zc_value, | |
1851 | sizeof (zc->zc_value)); | |
1852 | dmu_objset_rele(os, FTAG); | |
1853 | ||
1854 | return (error); | |
1855 | } | |
1856 | ||
34dc7c2f BB |
1857 | static int |
1858 | zfs_ioc_vdev_add(zfs_cmd_t *zc) | |
1859 | { | |
1860 | spa_t *spa; | |
1861 | int error; | |
64ad2b26 | 1862 | nvlist_t *config; |
34dc7c2f BB |
1863 | |
1864 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1865 | if (error != 0) | |
1866 | return (error); | |
1867 | ||
1868 | error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1869 | zc->zc_iflags, &config); |
34dc7c2f BB |
1870 | if (error == 0) { |
1871 | error = spa_vdev_add(spa, config); | |
1872 | nvlist_free(config); | |
1873 | } | |
1874 | spa_close(spa, FTAG); | |
1875 | return (error); | |
1876 | } | |
1877 | ||
428870ff BB |
1878 | /* |
1879 | * inputs: | |
1880 | * zc_name name of the pool | |
1881 | * zc_nvlist_conf nvlist of devices to remove | |
1882 | * zc_cookie to stop the remove? | |
1883 | */ | |
34dc7c2f BB |
1884 | static int |
1885 | zfs_ioc_vdev_remove(zfs_cmd_t *zc) | |
1886 | { | |
1887 | spa_t *spa; | |
1888 | int error; | |
1889 | ||
1890 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1891 | if (error != 0) | |
1892 | return (error); | |
1893 | error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE); | |
1894 | spa_close(spa, FTAG); | |
1895 | return (error); | |
1896 | } | |
1897 | ||
1898 | static int | |
1899 | zfs_ioc_vdev_set_state(zfs_cmd_t *zc) | |
1900 | { | |
1901 | spa_t *spa; | |
1902 | int error; | |
1903 | vdev_state_t newstate = VDEV_STATE_UNKNOWN; | |
1904 | ||
1905 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1906 | return (error); | |
1907 | switch (zc->zc_cookie) { | |
1908 | case VDEV_STATE_ONLINE: | |
1909 | error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate); | |
1910 | break; | |
1911 | ||
1912 | case VDEV_STATE_OFFLINE: | |
1913 | error = vdev_offline(spa, zc->zc_guid, zc->zc_obj); | |
1914 | break; | |
1915 | ||
1916 | case VDEV_STATE_FAULTED: | |
428870ff BB |
1917 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
1918 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
1919 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
1920 | ||
1921 | error = vdev_fault(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1922 | break; |
1923 | ||
1924 | case VDEV_STATE_DEGRADED: | |
428870ff BB |
1925 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
1926 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
1927 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
1928 | ||
1929 | error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1930 | break; |
1931 | ||
1932 | default: | |
2e528b49 | 1933 | error = SET_ERROR(EINVAL); |
34dc7c2f BB |
1934 | } |
1935 | zc->zc_cookie = newstate; | |
1936 | spa_close(spa, FTAG); | |
1937 | return (error); | |
1938 | } | |
1939 | ||
1940 | static int | |
1941 | zfs_ioc_vdev_attach(zfs_cmd_t *zc) | |
1942 | { | |
1943 | spa_t *spa; | |
1944 | int replacing = zc->zc_cookie; | |
1945 | nvlist_t *config; | |
1946 | int error; | |
1947 | ||
1948 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1949 | return (error); | |
1950 | ||
1951 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1952 | zc->zc_iflags, &config)) == 0) { |
34dc7c2f BB |
1953 | error = spa_vdev_attach(spa, zc->zc_guid, config, replacing); |
1954 | nvlist_free(config); | |
1955 | } | |
1956 | ||
1957 | spa_close(spa, FTAG); | |
1958 | return (error); | |
1959 | } | |
1960 | ||
1961 | static int | |
1962 | zfs_ioc_vdev_detach(zfs_cmd_t *zc) | |
1963 | { | |
1964 | spa_t *spa; | |
1965 | int error; | |
1966 | ||
1967 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1968 | return (error); | |
1969 | ||
fb5f0bc8 | 1970 | error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE); |
34dc7c2f BB |
1971 | |
1972 | spa_close(spa, FTAG); | |
1973 | return (error); | |
1974 | } | |
1975 | ||
428870ff BB |
1976 | static int |
1977 | zfs_ioc_vdev_split(zfs_cmd_t *zc) | |
1978 | { | |
1979 | spa_t *spa; | |
1980 | nvlist_t *config, *props = NULL; | |
1981 | int error; | |
1982 | boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT); | |
1983 | ||
1984 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1985 | return (error); | |
1986 | ||
c65aa5b2 BB |
1987 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, |
1988 | zc->zc_iflags, &config))) { | |
428870ff BB |
1989 | spa_close(spa, FTAG); |
1990 | return (error); | |
1991 | } | |
1992 | ||
1993 | if (zc->zc_nvlist_src_size != 0 && (error = | |
1994 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
1995 | zc->zc_iflags, &props))) { | |
1996 | spa_close(spa, FTAG); | |
1997 | nvlist_free(config); | |
1998 | return (error); | |
1999 | } | |
2000 | ||
2001 | error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp); | |
2002 | ||
2003 | spa_close(spa, FTAG); | |
2004 | ||
2005 | nvlist_free(config); | |
2006 | nvlist_free(props); | |
2007 | ||
2008 | return (error); | |
2009 | } | |
2010 | ||
34dc7c2f BB |
2011 | static int |
2012 | zfs_ioc_vdev_setpath(zfs_cmd_t *zc) | |
2013 | { | |
2014 | spa_t *spa; | |
2015 | char *path = zc->zc_value; | |
2016 | uint64_t guid = zc->zc_guid; | |
2017 | int error; | |
2018 | ||
2019 | error = spa_open(zc->zc_name, &spa, FTAG); | |
2020 | if (error != 0) | |
2021 | return (error); | |
2022 | ||
2023 | error = spa_vdev_setpath(spa, guid, path); | |
2024 | spa_close(spa, FTAG); | |
2025 | return (error); | |
2026 | } | |
2027 | ||
9babb374 BB |
2028 | static int |
2029 | zfs_ioc_vdev_setfru(zfs_cmd_t *zc) | |
2030 | { | |
2031 | spa_t *spa; | |
2032 | char *fru = zc->zc_value; | |
2033 | uint64_t guid = zc->zc_guid; | |
2034 | int error; | |
2035 | ||
2036 | error = spa_open(zc->zc_name, &spa, FTAG); | |
2037 | if (error != 0) | |
2038 | return (error); | |
2039 | ||
2040 | error = spa_vdev_setfru(spa, guid, fru); | |
2041 | spa_close(spa, FTAG); | |
2042 | return (error); | |
2043 | } | |
2044 | ||
34dc7c2f | 2045 | static int |
572e2857 | 2046 | zfs_ioc_objset_stats_impl(zfs_cmd_t *zc, objset_t *os) |
34dc7c2f | 2047 | { |
572e2857 | 2048 | int error = 0; |
34dc7c2f BB |
2049 | nvlist_t *nv; |
2050 | ||
34dc7c2f BB |
2051 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); |
2052 | ||
2053 | if (zc->zc_nvlist_dst != 0 && | |
428870ff | 2054 | (error = dsl_prop_get_all(os, &nv)) == 0) { |
34dc7c2f BB |
2055 | dmu_objset_stats(os, nv); |
2056 | /* | |
2057 | * NB: zvol_get_stats() will read the objset contents, | |
2058 | * which we aren't supposed to do with a | |
b128c09f | 2059 | * DS_MODE_USER hold, because it could be |
34dc7c2f | 2060 | * inconsistent. So this is a bit of a workaround... |
428870ff | 2061 | * XXX reading with out owning |
34dc7c2f | 2062 | */ |
330d06f9 MA |
2063 | if (!zc->zc_objset_stats.dds_inconsistent && |
2064 | dmu_objset_type(os) == DMU_OST_ZVOL) { | |
2065 | error = zvol_get_stats(os, nv); | |
2066 | if (error == EIO) | |
2067 | return (error); | |
c99c9001 | 2068 | VERIFY0(error); |
34dc7c2f | 2069 | } |
8a8f5c6b BB |
2070 | if (error == 0) |
2071 | error = put_nvlist(zc, nv); | |
34dc7c2f BB |
2072 | nvlist_free(nv); |
2073 | } | |
2074 | ||
572e2857 BB |
2075 | return (error); |
2076 | } | |
2077 | ||
2078 | /* | |
2079 | * inputs: | |
2080 | * zc_name name of filesystem | |
2081 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2082 | * | |
2083 | * outputs: | |
2084 | * zc_objset_stats stats | |
2085 | * zc_nvlist_dst property nvlist | |
2086 | * zc_nvlist_dst_size size of property nvlist | |
2087 | */ | |
2088 | static int | |
2089 | zfs_ioc_objset_stats(zfs_cmd_t *zc) | |
2090 | { | |
13fe0198 | 2091 | objset_t *os; |
572e2857 BB |
2092 | int error; |
2093 | ||
13fe0198 MA |
2094 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); |
2095 | if (error == 0) { | |
2096 | error = zfs_ioc_objset_stats_impl(zc, os); | |
2097 | dmu_objset_rele(os, FTAG); | |
2098 | } | |
572e2857 | 2099 | |
428870ff BB |
2100 | return (error); |
2101 | } | |
2102 | ||
2103 | /* | |
2104 | * inputs: | |
2105 | * zc_name name of filesystem | |
2106 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2107 | * | |
2108 | * outputs: | |
2109 | * zc_nvlist_dst received property nvlist | |
2110 | * zc_nvlist_dst_size size of received property nvlist | |
2111 | * | |
2112 | * Gets received properties (distinct from local properties on or after | |
2113 | * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from | |
2114 | * local property values. | |
2115 | */ | |
2116 | static int | |
26685276 | 2117 | zfs_ioc_objset_recvd_props(zfs_cmd_t *zc) |
428870ff | 2118 | { |
13fe0198 | 2119 | int error = 0; |
428870ff BB |
2120 | nvlist_t *nv; |
2121 | ||
428870ff BB |
2122 | /* |
2123 | * Without this check, we would return local property values if the | |
2124 | * caller has not already received properties on or after | |
2125 | * SPA_VERSION_RECVD_PROPS. | |
2126 | */ | |
13fe0198 | 2127 | if (!dsl_prop_get_hasrecvd(zc->zc_name)) |
2e528b49 | 2128 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
2129 | |
2130 | if (zc->zc_nvlist_dst != 0 && | |
13fe0198 | 2131 | (error = dsl_prop_get_received(zc->zc_name, &nv)) == 0) { |
428870ff BB |
2132 | error = put_nvlist(zc, nv); |
2133 | nvlist_free(nv); | |
2134 | } | |
2135 | ||
34dc7c2f BB |
2136 | return (error); |
2137 | } | |
2138 | ||
2139 | static int | |
2140 | nvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop) | |
2141 | { | |
2142 | uint64_t value; | |
2143 | int error; | |
2144 | ||
2145 | /* | |
2146 | * zfs_get_zplprop() will either find a value or give us | |
2147 | * the default value (if there is one). | |
2148 | */ | |
2149 | if ((error = zfs_get_zplprop(os, prop, &value)) != 0) | |
2150 | return (error); | |
2151 | VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0); | |
2152 | return (0); | |
2153 | } | |
2154 | ||
2155 | /* | |
2156 | * inputs: | |
2157 | * zc_name name of filesystem | |
2158 | * zc_nvlist_dst_size size of buffer for zpl property nvlist | |
2159 | * | |
2160 | * outputs: | |
2161 | * zc_nvlist_dst zpl property nvlist | |
2162 | * zc_nvlist_dst_size size of zpl property nvlist | |
2163 | */ | |
2164 | static int | |
2165 | zfs_ioc_objset_zplprops(zfs_cmd_t *zc) | |
2166 | { | |
2167 | objset_t *os; | |
2168 | int err; | |
2169 | ||
428870ff | 2170 | /* XXX reading without owning */ |
c65aa5b2 | 2171 | if ((err = dmu_objset_hold(zc->zc_name, FTAG, &os))) |
34dc7c2f BB |
2172 | return (err); |
2173 | ||
2174 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); | |
2175 | ||
2176 | /* | |
2177 | * NB: nvl_add_zplprop() will read the objset contents, | |
b128c09f BB |
2178 | * which we aren't supposed to do with a DS_MODE_USER |
2179 | * hold, because it could be inconsistent. | |
34dc7c2f | 2180 | */ |
b8864a23 | 2181 | if (zc->zc_nvlist_dst != 0 && |
34dc7c2f BB |
2182 | !zc->zc_objset_stats.dds_inconsistent && |
2183 | dmu_objset_type(os) == DMU_OST_ZFS) { | |
2184 | nvlist_t *nv; | |
2185 | ||
2186 | VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2187 | if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 && | |
2188 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 && | |
2189 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 && | |
2190 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0) | |
2191 | err = put_nvlist(zc, nv); | |
2192 | nvlist_free(nv); | |
2193 | } else { | |
2e528b49 | 2194 | err = SET_ERROR(ENOENT); |
34dc7c2f | 2195 | } |
428870ff | 2196 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
2197 | return (err); |
2198 | } | |
2199 | ||
ba6a2402 | 2200 | boolean_t |
9babb374 BB |
2201 | dataset_name_hidden(const char *name) |
2202 | { | |
2203 | /* | |
2204 | * Skip over datasets that are not visible in this zone, | |
2205 | * internal datasets (which have a $ in their name), and | |
2206 | * temporary datasets (which have a % in their name). | |
2207 | */ | |
2208 | if (strchr(name, '$') != NULL) | |
2209 | return (B_TRUE); | |
2210 | if (strchr(name, '%') != NULL) | |
2211 | return (B_TRUE); | |
2212 | if (!INGLOBALZONE(curproc) && !zone_dataset_visible(name, NULL)) | |
2213 | return (B_TRUE); | |
2214 | return (B_FALSE); | |
2215 | } | |
2216 | ||
34dc7c2f BB |
2217 | /* |
2218 | * inputs: | |
2219 | * zc_name name of filesystem | |
2220 | * zc_cookie zap cursor | |
2221 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2222 | * | |
2223 | * outputs: | |
2224 | * zc_name name of next filesystem | |
9babb374 | 2225 | * zc_cookie zap cursor |
34dc7c2f BB |
2226 | * zc_objset_stats stats |
2227 | * zc_nvlist_dst property nvlist | |
2228 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
2229 | */ |
2230 | static int | |
2231 | zfs_ioc_dataset_list_next(zfs_cmd_t *zc) | |
2232 | { | |
2233 | objset_t *os; | |
2234 | int error; | |
2235 | char *p; | |
428870ff | 2236 | size_t orig_len = strlen(zc->zc_name); |
34dc7c2f | 2237 | |
428870ff | 2238 | top: |
c65aa5b2 | 2239 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os))) { |
34dc7c2f | 2240 | if (error == ENOENT) |
2e528b49 | 2241 | error = SET_ERROR(ESRCH); |
34dc7c2f BB |
2242 | return (error); |
2243 | } | |
2244 | ||
2245 | p = strrchr(zc->zc_name, '/'); | |
2246 | if (p == NULL || p[1] != '\0') | |
2247 | (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name)); | |
2248 | p = zc->zc_name + strlen(zc->zc_name); | |
2249 | ||
2250 | do { | |
2251 | error = dmu_dir_list_next(os, | |
2252 | sizeof (zc->zc_name) - (p - zc->zc_name), p, | |
2253 | NULL, &zc->zc_cookie); | |
2254 | if (error == ENOENT) | |
2e528b49 | 2255 | error = SET_ERROR(ESRCH); |
330d06f9 | 2256 | } while (error == 0 && dataset_name_hidden(zc->zc_name)); |
428870ff | 2257 | dmu_objset_rele(os, FTAG); |
34dc7c2f | 2258 | |
428870ff BB |
2259 | /* |
2260 | * If it's an internal dataset (ie. with a '$' in its name), | |
2261 | * don't try to get stats for it, otherwise we'll return ENOENT. | |
2262 | */ | |
2263 | if (error == 0 && strchr(zc->zc_name, '$') == NULL) { | |
34dc7c2f | 2264 | error = zfs_ioc_objset_stats(zc); /* fill in the stats */ |
428870ff BB |
2265 | if (error == ENOENT) { |
2266 | /* We lost a race with destroy, get the next one. */ | |
2267 | zc->zc_name[orig_len] = '\0'; | |
2268 | goto top; | |
2269 | } | |
2270 | } | |
34dc7c2f BB |
2271 | return (error); |
2272 | } | |
2273 | ||
2274 | /* | |
2275 | * inputs: | |
2276 | * zc_name name of filesystem | |
2277 | * zc_cookie zap cursor | |
2278 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2279 | * | |
2280 | * outputs: | |
2281 | * zc_name name of next snapshot | |
2282 | * zc_objset_stats stats | |
2283 | * zc_nvlist_dst property nvlist | |
2284 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
2285 | */ |
2286 | static int | |
2287 | zfs_ioc_snapshot_list_next(zfs_cmd_t *zc) | |
2288 | { | |
2289 | objset_t *os; | |
2290 | int error; | |
2291 | ||
428870ff | 2292 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); |
13fe0198 | 2293 | if (error != 0) { |
b128c09f | 2294 | return (error == ENOENT ? ESRCH : error); |
13fe0198 | 2295 | } |
34dc7c2f BB |
2296 | |
2297 | /* | |
2298 | * A dataset name of maximum length cannot have any snapshots, | |
2299 | * so exit immediately. | |
2300 | */ | |
2301 | if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= MAXNAMELEN) { | |
428870ff | 2302 | dmu_objset_rele(os, FTAG); |
2e528b49 | 2303 | return (SET_ERROR(ESRCH)); |
34dc7c2f BB |
2304 | } |
2305 | ||
2306 | error = dmu_snapshot_list_next(os, | |
2307 | sizeof (zc->zc_name) - strlen(zc->zc_name), | |
572e2857 BB |
2308 | zc->zc_name + strlen(zc->zc_name), &zc->zc_obj, &zc->zc_cookie, |
2309 | NULL); | |
2310 | ||
0cee2406 | 2311 | if (error == 0 && !zc->zc_simple) { |
572e2857 BB |
2312 | dsl_dataset_t *ds; |
2313 | dsl_pool_t *dp = os->os_dsl_dataset->ds_dir->dd_pool; | |
2314 | ||
572e2857 | 2315 | error = dsl_dataset_hold_obj(dp, zc->zc_obj, FTAG, &ds); |
13fe0198 | 2316 | if (error == 0) { |
572e2857 BB |
2317 | objset_t *ossnap; |
2318 | ||
2319 | error = dmu_objset_from_ds(ds, &ossnap); | |
2320 | if (error == 0) | |
2321 | error = zfs_ioc_objset_stats_impl(zc, ossnap); | |
2322 | dsl_dataset_rele(ds, FTAG); | |
428870ff BB |
2323 | } |
2324 | } else if (error == ENOENT) { | |
2e528b49 | 2325 | error = SET_ERROR(ESRCH); |
428870ff | 2326 | } |
34dc7c2f | 2327 | |
572e2857 | 2328 | dmu_objset_rele(os, FTAG); |
34dc7c2f | 2329 | /* if we failed, undo the @ that we tacked on to zc_name */ |
13fe0198 | 2330 | if (error != 0) |
34dc7c2f | 2331 | *strchr(zc->zc_name, '@') = '\0'; |
34dc7c2f BB |
2332 | return (error); |
2333 | } | |
2334 | ||
428870ff BB |
2335 | static int |
2336 | zfs_prop_set_userquota(const char *dsname, nvpair_t *pair) | |
34dc7c2f | 2337 | { |
428870ff BB |
2338 | const char *propname = nvpair_name(pair); |
2339 | uint64_t *valary; | |
2340 | unsigned int vallen; | |
2341 | const char *domain; | |
2342 | char *dash; | |
2343 | zfs_userquota_prop_t type; | |
2344 | uint64_t rid; | |
2345 | uint64_t quota; | |
3558fd73 | 2346 | zfs_sb_t *zsb; |
428870ff BB |
2347 | int err; |
2348 | ||
2349 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2350 | nvlist_t *attrs; | |
2351 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2352 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2353 | &pair) != 0) | |
2e528b49 | 2354 | return (SET_ERROR(EINVAL)); |
428870ff | 2355 | } |
34dc7c2f BB |
2356 | |
2357 | /* | |
428870ff BB |
2358 | * A correctly constructed propname is encoded as |
2359 | * userquota@<rid>-<domain>. | |
34dc7c2f | 2360 | */ |
428870ff BB |
2361 | if ((dash = strchr(propname, '-')) == NULL || |
2362 | nvpair_value_uint64_array(pair, &valary, &vallen) != 0 || | |
2363 | vallen != 3) | |
2e528b49 | 2364 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 2365 | |
428870ff BB |
2366 | domain = dash + 1; |
2367 | type = valary[0]; | |
2368 | rid = valary[1]; | |
2369 | quota = valary[2]; | |
34dc7c2f | 2370 | |
3558fd73 | 2371 | err = zfs_sb_hold(dsname, FTAG, &zsb, B_FALSE); |
428870ff | 2372 | if (err == 0) { |
3558fd73 BB |
2373 | err = zfs_set_userquota(zsb, type, domain, rid, quota); |
2374 | zfs_sb_rele(zsb, FTAG); | |
428870ff | 2375 | } |
9babb374 | 2376 | |
428870ff BB |
2377 | return (err); |
2378 | } | |
34dc7c2f | 2379 | |
428870ff BB |
2380 | /* |
2381 | * If the named property is one that has a special function to set its value, | |
2382 | * return 0 on success and a positive error code on failure; otherwise if it is | |
2383 | * not one of the special properties handled by this function, return -1. | |
2384 | * | |
2385 | * XXX: It would be better for callers of the property interface if we handled | |
2386 | * these special cases in dsl_prop.c (in the dsl layer). | |
2387 | */ | |
2388 | static int | |
2389 | zfs_prop_set_special(const char *dsname, zprop_source_t source, | |
2390 | nvpair_t *pair) | |
2391 | { | |
2392 | const char *propname = nvpair_name(pair); | |
2393 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2394 | uint64_t intval; | |
2395 | int err; | |
9babb374 | 2396 | |
428870ff BB |
2397 | if (prop == ZPROP_INVAL) { |
2398 | if (zfs_prop_userquota(propname)) | |
2399 | return (zfs_prop_set_userquota(dsname, pair)); | |
2400 | return (-1); | |
2401 | } | |
34dc7c2f | 2402 | |
428870ff BB |
2403 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { |
2404 | nvlist_t *attrs; | |
2405 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2406 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2407 | &pair) == 0); | |
2408 | } | |
b128c09f | 2409 | |
428870ff BB |
2410 | if (zfs_prop_get_type(prop) == PROP_TYPE_STRING) |
2411 | return (-1); | |
34dc7c2f | 2412 | |
428870ff | 2413 | VERIFY(0 == nvpair_value_uint64(pair, &intval)); |
34dc7c2f | 2414 | |
428870ff BB |
2415 | switch (prop) { |
2416 | case ZFS_PROP_QUOTA: | |
2417 | err = dsl_dir_set_quota(dsname, source, intval); | |
2418 | break; | |
2419 | case ZFS_PROP_REFQUOTA: | |
13fe0198 | 2420 | err = dsl_dataset_set_refquota(dsname, source, intval); |
428870ff | 2421 | break; |
788eb90c JJ |
2422 | case ZFS_PROP_FILESYSTEM_LIMIT: |
2423 | case ZFS_PROP_SNAPSHOT_LIMIT: | |
2424 | if (intval == UINT64_MAX) { | |
2425 | /* clearing the limit, just do it */ | |
2426 | err = 0; | |
2427 | } else { | |
2428 | err = dsl_dir_activate_fs_ss_limit(dsname); | |
2429 | } | |
2430 | /* | |
2431 | * Set err to -1 to force the zfs_set_prop_nvlist code down the | |
2432 | * default path to set the value in the nvlist. | |
2433 | */ | |
2434 | if (err == 0) | |
2435 | err = -1; | |
2436 | break; | |
428870ff BB |
2437 | case ZFS_PROP_RESERVATION: |
2438 | err = dsl_dir_set_reservation(dsname, source, intval); | |
2439 | break; | |
2440 | case ZFS_PROP_REFRESERVATION: | |
13fe0198 | 2441 | err = dsl_dataset_set_refreservation(dsname, source, intval); |
428870ff BB |
2442 | break; |
2443 | case ZFS_PROP_VOLSIZE: | |
60101509 | 2444 | err = zvol_set_volsize(dsname, intval); |
428870ff | 2445 | break; |
0b4d1b58 ED |
2446 | case ZFS_PROP_SNAPDEV: |
2447 | err = zvol_set_snapdev(dsname, intval); | |
2448 | break; | |
428870ff BB |
2449 | case ZFS_PROP_VERSION: |
2450 | { | |
3558fd73 | 2451 | zfs_sb_t *zsb; |
428870ff | 2452 | |
3558fd73 | 2453 | if ((err = zfs_sb_hold(dsname, FTAG, &zsb, B_TRUE)) != 0) |
34dc7c2f | 2454 | break; |
b128c09f | 2455 | |
3558fd73 BB |
2456 | err = zfs_set_version(zsb, intval); |
2457 | zfs_sb_rele(zsb, FTAG); | |
34dc7c2f | 2458 | |
428870ff BB |
2459 | if (err == 0 && intval >= ZPL_VERSION_USERSPACE) { |
2460 | zfs_cmd_t *zc; | |
34dc7c2f | 2461 | |
efcd79a8 | 2462 | zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); |
428870ff BB |
2463 | (void) strcpy(zc->zc_name, dsname); |
2464 | (void) zfs_ioc_userspace_upgrade(zc); | |
2465 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
34dc7c2f | 2466 | } |
428870ff BB |
2467 | break; |
2468 | } | |
428870ff BB |
2469 | default: |
2470 | err = -1; | |
2471 | } | |
34dc7c2f | 2472 | |
428870ff BB |
2473 | return (err); |
2474 | } | |
34dc7c2f | 2475 | |
428870ff BB |
2476 | /* |
2477 | * This function is best effort. If it fails to set any of the given properties, | |
6f1ffb06 MA |
2478 | * it continues to set as many as it can and returns the last error |
2479 | * encountered. If the caller provides a non-NULL errlist, it will be filled in | |
2480 | * with the list of names of all the properties that failed along with the | |
2481 | * corresponding error numbers. | |
428870ff | 2482 | * |
6f1ffb06 MA |
2483 | * If every property is set successfully, zero is returned and errlist is not |
2484 | * modified. | |
428870ff BB |
2485 | */ |
2486 | int | |
2487 | zfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl, | |
6f1ffb06 | 2488 | nvlist_t *errlist) |
428870ff BB |
2489 | { |
2490 | nvpair_t *pair; | |
2491 | nvpair_t *propval; | |
2492 | int rv = 0; | |
2493 | uint64_t intval; | |
2494 | char *strval; | |
34dc7c2f | 2495 | |
6f1ffb06 MA |
2496 | nvlist_t *genericnvl = fnvlist_alloc(); |
2497 | nvlist_t *retrynvl = fnvlist_alloc(); | |
428870ff BB |
2498 | retry: |
2499 | pair = NULL; | |
2500 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { | |
2501 | const char *propname = nvpair_name(pair); | |
2502 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2503 | int err = 0; | |
2504 | ||
2505 | /* decode the property value */ | |
2506 | propval = pair; | |
2507 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2508 | nvlist_t *attrs; | |
6f1ffb06 | 2509 | attrs = fnvpair_value_nvlist(pair); |
428870ff BB |
2510 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, |
2511 | &propval) != 0) | |
2e528b49 | 2512 | err = SET_ERROR(EINVAL); |
9babb374 | 2513 | } |
34dc7c2f | 2514 | |
428870ff BB |
2515 | /* Validate value type */ |
2516 | if (err == 0 && prop == ZPROP_INVAL) { | |
2517 | if (zfs_prop_user(propname)) { | |
2518 | if (nvpair_type(propval) != DATA_TYPE_STRING) | |
2e528b49 | 2519 | err = SET_ERROR(EINVAL); |
428870ff BB |
2520 | } else if (zfs_prop_userquota(propname)) { |
2521 | if (nvpair_type(propval) != | |
2522 | DATA_TYPE_UINT64_ARRAY) | |
2e528b49 | 2523 | err = SET_ERROR(EINVAL); |
330d06f9 | 2524 | } else { |
2e528b49 | 2525 | err = SET_ERROR(EINVAL); |
428870ff BB |
2526 | } |
2527 | } else if (err == 0) { | |
2528 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
2529 | if (zfs_prop_get_type(prop) != PROP_TYPE_STRING) | |
2e528b49 | 2530 | err = SET_ERROR(EINVAL); |
428870ff | 2531 | } else if (nvpair_type(propval) == DATA_TYPE_UINT64) { |
34dc7c2f BB |
2532 | const char *unused; |
2533 | ||
6f1ffb06 | 2534 | intval = fnvpair_value_uint64(propval); |
34dc7c2f BB |
2535 | |
2536 | switch (zfs_prop_get_type(prop)) { | |
2537 | case PROP_TYPE_NUMBER: | |
2538 | break; | |
2539 | case PROP_TYPE_STRING: | |
2e528b49 | 2540 | err = SET_ERROR(EINVAL); |
428870ff | 2541 | break; |
34dc7c2f BB |
2542 | case PROP_TYPE_INDEX: |
2543 | if (zfs_prop_index_to_string(prop, | |
428870ff | 2544 | intval, &unused) != 0) |
2e528b49 | 2545 | err = SET_ERROR(EINVAL); |
34dc7c2f BB |
2546 | break; |
2547 | default: | |
2548 | cmn_err(CE_PANIC, | |
2549 | "unknown property type"); | |
34dc7c2f | 2550 | } |
34dc7c2f | 2551 | } else { |
2e528b49 | 2552 | err = SET_ERROR(EINVAL); |
34dc7c2f | 2553 | } |
34dc7c2f | 2554 | } |
428870ff BB |
2555 | |
2556 | /* Validate permissions */ | |
2557 | if (err == 0) | |
2558 | err = zfs_check_settable(dsname, pair, CRED()); | |
2559 | ||
2560 | if (err == 0) { | |
2561 | err = zfs_prop_set_special(dsname, source, pair); | |
2562 | if (err == -1) { | |
2563 | /* | |
2564 | * For better performance we build up a list of | |
2565 | * properties to set in a single transaction. | |
2566 | */ | |
2567 | err = nvlist_add_nvpair(genericnvl, pair); | |
2568 | } else if (err != 0 && nvl != retrynvl) { | |
2569 | /* | |
2570 | * This may be a spurious error caused by | |
2571 | * receiving quota and reservation out of order. | |
2572 | * Try again in a second pass. | |
2573 | */ | |
2574 | err = nvlist_add_nvpair(retrynvl, pair); | |
2575 | } | |
2576 | } | |
2577 | ||
6f1ffb06 MA |
2578 | if (err != 0) { |
2579 | if (errlist != NULL) | |
2580 | fnvlist_add_int32(errlist, propname, err); | |
2581 | rv = err; | |
2582 | } | |
34dc7c2f BB |
2583 | } |
2584 | ||
428870ff BB |
2585 | if (nvl != retrynvl && !nvlist_empty(retrynvl)) { |
2586 | nvl = retrynvl; | |
2587 | goto retry; | |
2588 | } | |
2589 | ||
2590 | if (!nvlist_empty(genericnvl) && | |
2591 | dsl_props_set(dsname, source, genericnvl) != 0) { | |
2592 | /* | |
2593 | * If this fails, we still want to set as many properties as we | |
2594 | * can, so try setting them individually. | |
2595 | */ | |
2596 | pair = NULL; | |
2597 | while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) { | |
2598 | const char *propname = nvpair_name(pair); | |
2599 | int err = 0; | |
2600 | ||
2601 | propval = pair; | |
2602 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2603 | nvlist_t *attrs; | |
6f1ffb06 MA |
2604 | attrs = fnvpair_value_nvlist(pair); |
2605 | propval = fnvlist_lookup_nvpair(attrs, | |
2606 | ZPROP_VALUE); | |
428870ff BB |
2607 | } |
2608 | ||
2609 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
6f1ffb06 | 2610 | strval = fnvpair_value_string(propval); |
13fe0198 MA |
2611 | err = dsl_prop_set_string(dsname, propname, |
2612 | source, strval); | |
428870ff | 2613 | } else { |
6f1ffb06 | 2614 | intval = fnvpair_value_uint64(propval); |
13fe0198 MA |
2615 | err = dsl_prop_set_int(dsname, propname, source, |
2616 | intval); | |
428870ff BB |
2617 | } |
2618 | ||
2619 | if (err != 0) { | |
6f1ffb06 MA |
2620 | if (errlist != NULL) { |
2621 | fnvlist_add_int32(errlist, propname, | |
2622 | err); | |
2623 | } | |
2624 | rv = err; | |
428870ff BB |
2625 | } |
2626 | } | |
9babb374 | 2627 | } |
9babb374 | 2628 | nvlist_free(genericnvl); |
428870ff BB |
2629 | nvlist_free(retrynvl); |
2630 | ||
428870ff | 2631 | return (rv); |
9babb374 BB |
2632 | } |
2633 | ||
2634 | /* | |
2635 | * Check that all the properties are valid user properties. | |
2636 | */ | |
2637 | static int | |
6f1ffb06 | 2638 | zfs_check_userprops(const char *fsname, nvlist_t *nvl) |
9babb374 | 2639 | { |
428870ff | 2640 | nvpair_t *pair = NULL; |
9babb374 BB |
2641 | int error = 0; |
2642 | ||
428870ff BB |
2643 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { |
2644 | const char *propname = nvpair_name(pair); | |
9babb374 BB |
2645 | |
2646 | if (!zfs_prop_user(propname) || | |
428870ff | 2647 | nvpair_type(pair) != DATA_TYPE_STRING) |
2e528b49 | 2648 | return (SET_ERROR(EINVAL)); |
9babb374 | 2649 | |
c65aa5b2 BB |
2650 | if ((error = zfs_secpolicy_write_perms(fsname, |
2651 | ZFS_DELEG_PERM_USERPROP, CRED()))) | |
9babb374 BB |
2652 | return (error); |
2653 | ||
2654 | if (strlen(propname) >= ZAP_MAXNAMELEN) | |
2e528b49 | 2655 | return (SET_ERROR(ENAMETOOLONG)); |
9babb374 | 2656 | |
da536844 | 2657 | if (strlen(fnvpair_value_string(pair)) >= ZAP_MAXVALUELEN) |
2e528b49 | 2658 | return (SET_ERROR(E2BIG)); |
9babb374 | 2659 | } |
34dc7c2f BB |
2660 | return (0); |
2661 | } | |
2662 | ||
428870ff BB |
2663 | static void |
2664 | props_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops) | |
2665 | { | |
2666 | nvpair_t *pair; | |
2667 | ||
2668 | VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2669 | ||
2670 | pair = NULL; | |
2671 | while ((pair = nvlist_next_nvpair(props, pair)) != NULL) { | |
2672 | if (nvlist_exists(skipped, nvpair_name(pair))) | |
2673 | continue; | |
2674 | ||
2675 | VERIFY(nvlist_add_nvpair(*newprops, pair) == 0); | |
2676 | } | |
2677 | } | |
2678 | ||
2679 | static int | |
13fe0198 | 2680 | clear_received_props(const char *dsname, nvlist_t *props, |
428870ff BB |
2681 | nvlist_t *skipped) |
2682 | { | |
2683 | int err = 0; | |
2684 | nvlist_t *cleared_props = NULL; | |
2685 | props_skip(props, skipped, &cleared_props); | |
2686 | if (!nvlist_empty(cleared_props)) { | |
2687 | /* | |
2688 | * Acts on local properties until the dataset has received | |
2689 | * properties at least once on or after SPA_VERSION_RECVD_PROPS. | |
2690 | */ | |
2691 | zprop_source_t flags = (ZPROP_SRC_NONE | | |
13fe0198 MA |
2692 | (dsl_prop_get_hasrecvd(dsname) ? ZPROP_SRC_RECEIVED : 0)); |
2693 | err = zfs_set_prop_nvlist(dsname, flags, cleared_props, NULL); | |
428870ff BB |
2694 | } |
2695 | nvlist_free(cleared_props); | |
2696 | return (err); | |
2697 | } | |
2698 | ||
34dc7c2f BB |
2699 | /* |
2700 | * inputs: | |
2701 | * zc_name name of filesystem | |
9babb374 | 2702 | * zc_value name of property to set |
34dc7c2f | 2703 | * zc_nvlist_src{_size} nvlist of properties to apply |
428870ff | 2704 | * zc_cookie received properties flag |
34dc7c2f | 2705 | * |
428870ff BB |
2706 | * outputs: |
2707 | * zc_nvlist_dst{_size} error for each unapplied received property | |
34dc7c2f BB |
2708 | */ |
2709 | static int | |
2710 | zfs_ioc_set_prop(zfs_cmd_t *zc) | |
2711 | { | |
2712 | nvlist_t *nvl; | |
428870ff BB |
2713 | boolean_t received = zc->zc_cookie; |
2714 | zprop_source_t source = (received ? ZPROP_SRC_RECEIVED : | |
2715 | ZPROP_SRC_LOCAL); | |
6f1ffb06 | 2716 | nvlist_t *errors; |
34dc7c2f BB |
2717 | int error; |
2718 | ||
2719 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2720 | zc->zc_iflags, &nvl)) != 0) |
34dc7c2f BB |
2721 | return (error); |
2722 | ||
428870ff | 2723 | if (received) { |
b128c09f | 2724 | nvlist_t *origprops; |
b128c09f | 2725 | |
13fe0198 MA |
2726 | if (dsl_prop_get_received(zc->zc_name, &origprops) == 0) { |
2727 | (void) clear_received_props(zc->zc_name, | |
2728 | origprops, nvl); | |
2729 | nvlist_free(origprops); | |
428870ff | 2730 | } |
13fe0198 MA |
2731 | |
2732 | error = dsl_prop_set_hasrecvd(zc->zc_name); | |
b128c09f BB |
2733 | } |
2734 | ||
6f1ffb06 | 2735 | errors = fnvlist_alloc(); |
13fe0198 MA |
2736 | if (error == 0) |
2737 | error = zfs_set_prop_nvlist(zc->zc_name, source, nvl, errors); | |
34dc7c2f | 2738 | |
b8864a23 | 2739 | if (zc->zc_nvlist_dst != 0 && errors != NULL) { |
428870ff BB |
2740 | (void) put_nvlist(zc, errors); |
2741 | } | |
2742 | ||
2743 | nvlist_free(errors); | |
34dc7c2f BB |
2744 | nvlist_free(nvl); |
2745 | return (error); | |
2746 | } | |
2747 | ||
2748 | /* | |
2749 | * inputs: | |
2750 | * zc_name name of filesystem | |
2751 | * zc_value name of property to inherit | |
428870ff | 2752 | * zc_cookie revert to received value if TRUE |
34dc7c2f BB |
2753 | * |
2754 | * outputs: none | |
2755 | */ | |
2756 | static int | |
2757 | zfs_ioc_inherit_prop(zfs_cmd_t *zc) | |
2758 | { | |
428870ff BB |
2759 | const char *propname = zc->zc_value; |
2760 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2761 | boolean_t received = zc->zc_cookie; | |
2762 | zprop_source_t source = (received | |
2763 | ? ZPROP_SRC_NONE /* revert to received value, if any */ | |
2764 | : ZPROP_SRC_INHERITED); /* explicitly inherit */ | |
2765 | ||
2766 | if (received) { | |
2767 | nvlist_t *dummy; | |
2768 | nvpair_t *pair; | |
2769 | zprop_type_t type; | |
2770 | int err; | |
2771 | ||
2772 | /* | |
2773 | * zfs_prop_set_special() expects properties in the form of an | |
2774 | * nvpair with type info. | |
2775 | */ | |
2776 | if (prop == ZPROP_INVAL) { | |
2777 | if (!zfs_prop_user(propname)) | |
2e528b49 | 2778 | return (SET_ERROR(EINVAL)); |
428870ff BB |
2779 | |
2780 | type = PROP_TYPE_STRING; | |
2781 | } else if (prop == ZFS_PROP_VOLSIZE || | |
2782 | prop == ZFS_PROP_VERSION) { | |
2e528b49 | 2783 | return (SET_ERROR(EINVAL)); |
428870ff BB |
2784 | } else { |
2785 | type = zfs_prop_get_type(prop); | |
2786 | } | |
2787 | ||
2788 | VERIFY(nvlist_alloc(&dummy, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2789 | ||
2790 | switch (type) { | |
2791 | case PROP_TYPE_STRING: | |
2792 | VERIFY(0 == nvlist_add_string(dummy, propname, "")); | |
2793 | break; | |
2794 | case PROP_TYPE_NUMBER: | |
2795 | case PROP_TYPE_INDEX: | |
2796 | VERIFY(0 == nvlist_add_uint64(dummy, propname, 0)); | |
2797 | break; | |
2798 | default: | |
2799 | nvlist_free(dummy); | |
2e528b49 | 2800 | return (SET_ERROR(EINVAL)); |
428870ff BB |
2801 | } |
2802 | ||
2803 | pair = nvlist_next_nvpair(dummy, NULL); | |
2804 | err = zfs_prop_set_special(zc->zc_name, source, pair); | |
2805 | nvlist_free(dummy); | |
2806 | if (err != -1) | |
2807 | return (err); /* special property already handled */ | |
2808 | } else { | |
2809 | /* | |
2810 | * Only check this in the non-received case. We want to allow | |
2811 | * 'inherit -S' to revert non-inheritable properties like quota | |
2812 | * and reservation to the received or default values even though | |
2813 | * they are not considered inheritable. | |
2814 | */ | |
2815 | if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop)) | |
2e528b49 | 2816 | return (SET_ERROR(EINVAL)); |
428870ff BB |
2817 | } |
2818 | ||
6f1ffb06 | 2819 | /* property name has been validated by zfs_secpolicy_inherit_prop() */ |
13fe0198 | 2820 | return (dsl_prop_inherit(zc->zc_name, zc->zc_value, source)); |
34dc7c2f BB |
2821 | } |
2822 | ||
2823 | static int | |
2824 | zfs_ioc_pool_set_props(zfs_cmd_t *zc) | |
2825 | { | |
2826 | nvlist_t *props; | |
2827 | spa_t *spa; | |
2828 | int error; | |
428870ff | 2829 | nvpair_t *pair; |
34dc7c2f | 2830 | |
c65aa5b2 BB |
2831 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
2832 | zc->zc_iflags, &props))) | |
34dc7c2f BB |
2833 | return (error); |
2834 | ||
d164b209 BB |
2835 | /* |
2836 | * If the only property is the configfile, then just do a spa_lookup() | |
2837 | * to handle the faulted case. | |
2838 | */ | |
428870ff BB |
2839 | pair = nvlist_next_nvpair(props, NULL); |
2840 | if (pair != NULL && strcmp(nvpair_name(pair), | |
d164b209 | 2841 | zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 && |
428870ff | 2842 | nvlist_next_nvpair(props, pair) == NULL) { |
d164b209 BB |
2843 | mutex_enter(&spa_namespace_lock); |
2844 | if ((spa = spa_lookup(zc->zc_name)) != NULL) { | |
2845 | spa_configfile_set(spa, props, B_FALSE); | |
2846 | spa_config_sync(spa, B_FALSE, B_TRUE); | |
2847 | } | |
2848 | mutex_exit(&spa_namespace_lock); | |
428870ff BB |
2849 | if (spa != NULL) { |
2850 | nvlist_free(props); | |
d164b209 | 2851 | return (0); |
428870ff | 2852 | } |
d164b209 BB |
2853 | } |
2854 | ||
34dc7c2f BB |
2855 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2856 | nvlist_free(props); | |
2857 | return (error); | |
2858 | } | |
2859 | ||
2860 | error = spa_prop_set(spa, props); | |
2861 | ||
2862 | nvlist_free(props); | |
2863 | spa_close(spa, FTAG); | |
2864 | ||
2865 | return (error); | |
2866 | } | |
2867 | ||
2868 | static int | |
2869 | zfs_ioc_pool_get_props(zfs_cmd_t *zc) | |
2870 | { | |
2871 | spa_t *spa; | |
2872 | int error; | |
2873 | nvlist_t *nvp = NULL; | |
2874 | ||
d164b209 BB |
2875 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2876 | /* | |
2877 | * If the pool is faulted, there may be properties we can still | |
2878 | * get (such as altroot and cachefile), so attempt to get them | |
2879 | * anyway. | |
2880 | */ | |
2881 | mutex_enter(&spa_namespace_lock); | |
2882 | if ((spa = spa_lookup(zc->zc_name)) != NULL) | |
2883 | error = spa_prop_get(spa, &nvp); | |
2884 | mutex_exit(&spa_namespace_lock); | |
2885 | } else { | |
2886 | error = spa_prop_get(spa, &nvp); | |
2887 | spa_close(spa, FTAG); | |
2888 | } | |
34dc7c2f | 2889 | |
b8864a23 | 2890 | if (error == 0 && zc->zc_nvlist_dst != 0) |
34dc7c2f BB |
2891 | error = put_nvlist(zc, nvp); |
2892 | else | |
2e528b49 | 2893 | error = SET_ERROR(EFAULT); |
34dc7c2f | 2894 | |
d164b209 | 2895 | nvlist_free(nvp); |
34dc7c2f BB |
2896 | return (error); |
2897 | } | |
2898 | ||
34dc7c2f BB |
2899 | /* |
2900 | * inputs: | |
2901 | * zc_name name of filesystem | |
2902 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
2903 | * zc_perm_action allow/unallow flag | |
2904 | * | |
2905 | * outputs: none | |
2906 | */ | |
2907 | static int | |
2908 | zfs_ioc_set_fsacl(zfs_cmd_t *zc) | |
2909 | { | |
2910 | int error; | |
2911 | nvlist_t *fsaclnv = NULL; | |
2912 | ||
2913 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2914 | zc->zc_iflags, &fsaclnv)) != 0) |
34dc7c2f BB |
2915 | return (error); |
2916 | ||
2917 | /* | |
2918 | * Verify nvlist is constructed correctly | |
2919 | */ | |
2920 | if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) { | |
2921 | nvlist_free(fsaclnv); | |
2e528b49 | 2922 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
2923 | } |
2924 | ||
2925 | /* | |
2926 | * If we don't have PRIV_SYS_MOUNT, then validate | |
2927 | * that user is allowed to hand out each permission in | |
2928 | * the nvlist(s) | |
2929 | */ | |
2930 | ||
2931 | error = secpolicy_zfs(CRED()); | |
13fe0198 | 2932 | if (error != 0) { |
34dc7c2f BB |
2933 | if (zc->zc_perm_action == B_FALSE) { |
2934 | error = dsl_deleg_can_allow(zc->zc_name, | |
2935 | fsaclnv, CRED()); | |
2936 | } else { | |
2937 | error = dsl_deleg_can_unallow(zc->zc_name, | |
2938 | fsaclnv, CRED()); | |
2939 | } | |
2940 | } | |
2941 | ||
2942 | if (error == 0) | |
2943 | error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action); | |
2944 | ||
2945 | nvlist_free(fsaclnv); | |
2946 | return (error); | |
2947 | } | |
2948 | ||
2949 | /* | |
2950 | * inputs: | |
2951 | * zc_name name of filesystem | |
2952 | * | |
2953 | * outputs: | |
2954 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
2955 | */ | |
2956 | static int | |
2957 | zfs_ioc_get_fsacl(zfs_cmd_t *zc) | |
2958 | { | |
2959 | nvlist_t *nvp; | |
2960 | int error; | |
2961 | ||
2962 | if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) { | |
2963 | error = put_nvlist(zc, nvp); | |
2964 | nvlist_free(nvp); | |
2965 | } | |
2966 | ||
2967 | return (error); | |
2968 | } | |
2969 | ||
34dc7c2f BB |
2970 | /* ARGSUSED */ |
2971 | static void | |
2972 | zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx) | |
2973 | { | |
2974 | zfs_creat_t *zct = arg; | |
2975 | ||
2976 | zfs_create_fs(os, cr, zct->zct_zplprops, tx); | |
2977 | } | |
2978 | ||
2979 | #define ZFS_PROP_UNDEFINED ((uint64_t)-1) | |
2980 | ||
2981 | /* | |
2982 | * inputs: | |
b128c09f | 2983 | * os parent objset pointer (NULL if root fs) |
d3cc8b15 WA |
2984 | * fuids_ok fuids allowed in this version of the spa? |
2985 | * sa_ok SAs allowed in this version of the spa? | |
2986 | * createprops list of properties requested by creator | |
34dc7c2f BB |
2987 | * |
2988 | * outputs: | |
2989 | * zplprops values for the zplprops we attach to the master node object | |
b128c09f | 2990 | * is_ci true if requested file system will be purely case-insensitive |
34dc7c2f BB |
2991 | * |
2992 | * Determine the settings for utf8only, normalization and | |
2993 | * casesensitivity. Specific values may have been requested by the | |
2994 | * creator and/or we can inherit values from the parent dataset. If | |
2995 | * the file system is of too early a vintage, a creator can not | |
2996 | * request settings for these properties, even if the requested | |
2997 | * setting is the default value. We don't actually want to create dsl | |
2998 | * properties for these, so remove them from the source nvlist after | |
2999 | * processing. | |
3000 | */ | |
3001 | static int | |
9babb374 | 3002 | zfs_fill_zplprops_impl(objset_t *os, uint64_t zplver, |
428870ff BB |
3003 | boolean_t fuids_ok, boolean_t sa_ok, nvlist_t *createprops, |
3004 | nvlist_t *zplprops, boolean_t *is_ci) | |
34dc7c2f | 3005 | { |
34dc7c2f BB |
3006 | uint64_t sense = ZFS_PROP_UNDEFINED; |
3007 | uint64_t norm = ZFS_PROP_UNDEFINED; | |
3008 | uint64_t u8 = ZFS_PROP_UNDEFINED; | |
b129c659 | 3009 | int error; |
34dc7c2f BB |
3010 | |
3011 | ASSERT(zplprops != NULL); | |
3012 | ||
34dc7c2f BB |
3013 | /* |
3014 | * Pull out creator prop choices, if any. | |
3015 | */ | |
3016 | if (createprops) { | |
b128c09f BB |
3017 | (void) nvlist_lookup_uint64(createprops, |
3018 | zfs_prop_to_name(ZFS_PROP_VERSION), &zplver); | |
34dc7c2f BB |
3019 | (void) nvlist_lookup_uint64(createprops, |
3020 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm); | |
3021 | (void) nvlist_remove_all(createprops, | |
3022 | zfs_prop_to_name(ZFS_PROP_NORMALIZE)); | |
3023 | (void) nvlist_lookup_uint64(createprops, | |
3024 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8); | |
3025 | (void) nvlist_remove_all(createprops, | |
3026 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); | |
3027 | (void) nvlist_lookup_uint64(createprops, | |
3028 | zfs_prop_to_name(ZFS_PROP_CASE), &sense); | |
3029 | (void) nvlist_remove_all(createprops, | |
3030 | zfs_prop_to_name(ZFS_PROP_CASE)); | |
3031 | } | |
3032 | ||
3033 | /* | |
b128c09f BB |
3034 | * If the zpl version requested is whacky or the file system |
3035 | * or pool is version is too "young" to support normalization | |
3036 | * and the creator tried to set a value for one of the props, | |
3037 | * error out. | |
34dc7c2f | 3038 | */ |
b128c09f BB |
3039 | if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) || |
3040 | (zplver >= ZPL_VERSION_FUID && !fuids_ok) || | |
428870ff | 3041 | (zplver >= ZPL_VERSION_SA && !sa_ok) || |
b128c09f | 3042 | (zplver < ZPL_VERSION_NORMALIZATION && |
34dc7c2f | 3043 | (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED || |
b128c09f | 3044 | sense != ZFS_PROP_UNDEFINED))) |
2e528b49 | 3045 | return (SET_ERROR(ENOTSUP)); |
34dc7c2f BB |
3046 | |
3047 | /* | |
3048 | * Put the version in the zplprops | |
3049 | */ | |
3050 | VERIFY(nvlist_add_uint64(zplprops, | |
3051 | zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0); | |
3052 | ||
b129c659 MM |
3053 | if (norm == ZFS_PROP_UNDEFINED && |
3054 | (error = zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm)) != 0) | |
3055 | return (error); | |
34dc7c2f BB |
3056 | VERIFY(nvlist_add_uint64(zplprops, |
3057 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0); | |
3058 | ||
3059 | /* | |
3060 | * If we're normalizing, names must always be valid UTF-8 strings. | |
3061 | */ | |
3062 | if (norm) | |
3063 | u8 = 1; | |
b129c659 MM |
3064 | if (u8 == ZFS_PROP_UNDEFINED && |
3065 | (error = zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8)) != 0) | |
3066 | return (error); | |
34dc7c2f BB |
3067 | VERIFY(nvlist_add_uint64(zplprops, |
3068 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0); | |
3069 | ||
b129c659 MM |
3070 | if (sense == ZFS_PROP_UNDEFINED && |
3071 | (error = zfs_get_zplprop(os, ZFS_PROP_CASE, &sense)) != 0) | |
3072 | return (error); | |
34dc7c2f BB |
3073 | VERIFY(nvlist_add_uint64(zplprops, |
3074 | zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0); | |
3075 | ||
3076 | if (is_ci) | |
3077 | *is_ci = (sense == ZFS_CASE_INSENSITIVE); | |
3078 | ||
34dc7c2f BB |
3079 | return (0); |
3080 | } | |
3081 | ||
b128c09f BB |
3082 | static int |
3083 | zfs_fill_zplprops(const char *dataset, nvlist_t *createprops, | |
3084 | nvlist_t *zplprops, boolean_t *is_ci) | |
3085 | { | |
428870ff | 3086 | boolean_t fuids_ok, sa_ok; |
b128c09f BB |
3087 | uint64_t zplver = ZPL_VERSION; |
3088 | objset_t *os = NULL; | |
3089 | char parentname[MAXNAMELEN]; | |
3090 | char *cp; | |
428870ff BB |
3091 | spa_t *spa; |
3092 | uint64_t spa_vers; | |
b128c09f BB |
3093 | int error; |
3094 | ||
3095 | (void) strlcpy(parentname, dataset, sizeof (parentname)); | |
3096 | cp = strrchr(parentname, '/'); | |
3097 | ASSERT(cp != NULL); | |
3098 | cp[0] = '\0'; | |
3099 | ||
428870ff BB |
3100 | if ((error = spa_open(dataset, &spa, FTAG)) != 0) |
3101 | return (error); | |
3102 | ||
3103 | spa_vers = spa_version(spa); | |
3104 | spa_close(spa, FTAG); | |
3105 | ||
3106 | zplver = zfs_zpl_version_map(spa_vers); | |
3107 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
3108 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f BB |
3109 | |
3110 | /* | |
3111 | * Open parent object set so we can inherit zplprop values. | |
3112 | */ | |
428870ff | 3113 | if ((error = dmu_objset_hold(parentname, FTAG, &os)) != 0) |
b128c09f BB |
3114 | return (error); |
3115 | ||
428870ff | 3116 | error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, sa_ok, createprops, |
b128c09f | 3117 | zplprops, is_ci); |
428870ff | 3118 | dmu_objset_rele(os, FTAG); |
b128c09f BB |
3119 | return (error); |
3120 | } | |
3121 | ||
3122 | static int | |
3123 | zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops, | |
3124 | nvlist_t *zplprops, boolean_t *is_ci) | |
3125 | { | |
428870ff BB |
3126 | boolean_t fuids_ok; |
3127 | boolean_t sa_ok; | |
b128c09f BB |
3128 | uint64_t zplver = ZPL_VERSION; |
3129 | int error; | |
3130 | ||
428870ff BB |
3131 | zplver = zfs_zpl_version_map(spa_vers); |
3132 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
3133 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f | 3134 | |
428870ff BB |
3135 | error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, sa_ok, |
3136 | createprops, zplprops, is_ci); | |
b128c09f BB |
3137 | return (error); |
3138 | } | |
3139 | ||
34dc7c2f | 3140 | /* |
6f1ffb06 MA |
3141 | * innvl: { |
3142 | * "type" -> dmu_objset_type_t (int32) | |
3143 | * (optional) "props" -> { prop -> value } | |
3144 | * } | |
34dc7c2f | 3145 | * |
6f1ffb06 | 3146 | * outnvl: propname -> error code (int32) |
34dc7c2f BB |
3147 | */ |
3148 | static int | |
6f1ffb06 | 3149 | zfs_ioc_create(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3150 | { |
34dc7c2f | 3151 | int error = 0; |
6f1ffb06 | 3152 | zfs_creat_t zct = { 0 }; |
34dc7c2f BB |
3153 | nvlist_t *nvprops = NULL; |
3154 | void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx); | |
6f1ffb06 MA |
3155 | int32_t type32; |
3156 | dmu_objset_type_t type; | |
3157 | boolean_t is_insensitive = B_FALSE; | |
34dc7c2f | 3158 | |
6f1ffb06 | 3159 | if (nvlist_lookup_int32(innvl, "type", &type32) != 0) |
2e528b49 | 3160 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3161 | type = type32; |
3162 | (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); | |
34dc7c2f | 3163 | |
6f1ffb06 | 3164 | switch (type) { |
34dc7c2f BB |
3165 | case DMU_OST_ZFS: |
3166 | cbfunc = zfs_create_cb; | |
3167 | break; | |
3168 | ||
3169 | case DMU_OST_ZVOL: | |
3170 | cbfunc = zvol_create_cb; | |
3171 | break; | |
3172 | ||
3173 | default: | |
3174 | cbfunc = NULL; | |
3175 | break; | |
3176 | } | |
6f1ffb06 MA |
3177 | if (strchr(fsname, '@') || |
3178 | strchr(fsname, '%')) | |
2e528b49 | 3179 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3180 | |
34dc7c2f BB |
3181 | zct.zct_props = nvprops; |
3182 | ||
6f1ffb06 | 3183 | if (cbfunc == NULL) |
2e528b49 | 3184 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3185 | |
6f1ffb06 MA |
3186 | if (type == DMU_OST_ZVOL) { |
3187 | uint64_t volsize, volblocksize; | |
34dc7c2f | 3188 | |
6f1ffb06 | 3189 | if (nvprops == NULL) |
2e528b49 | 3190 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3191 | if (nvlist_lookup_uint64(nvprops, |
3192 | zfs_prop_to_name(ZFS_PROP_VOLSIZE), &volsize) != 0) | |
2e528b49 | 3193 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3194 | |
6f1ffb06 MA |
3195 | if ((error = nvlist_lookup_uint64(nvprops, |
3196 | zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
3197 | &volblocksize)) != 0 && error != ENOENT) | |
2e528b49 | 3198 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3199 | |
6f1ffb06 MA |
3200 | if (error != 0) |
3201 | volblocksize = zfs_prop_default_numeric( | |
3202 | ZFS_PROP_VOLBLOCKSIZE); | |
34dc7c2f | 3203 | |
6f1ffb06 MA |
3204 | if ((error = zvol_check_volblocksize( |
3205 | volblocksize)) != 0 || | |
3206 | (error = zvol_check_volsize(volsize, | |
3207 | volblocksize)) != 0) | |
3208 | return (error); | |
3209 | } else if (type == DMU_OST_ZFS) { | |
3210 | int error; | |
34dc7c2f | 3211 | |
6f1ffb06 MA |
3212 | /* |
3213 | * We have to have normalization and | |
3214 | * case-folding flags correct when we do the | |
3215 | * file system creation, so go figure them out | |
3216 | * now. | |
3217 | */ | |
3218 | VERIFY(nvlist_alloc(&zct.zct_zplprops, | |
3219 | NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3220 | error = zfs_fill_zplprops(fsname, nvprops, | |
3221 | zct.zct_zplprops, &is_insensitive); | |
3222 | if (error != 0) { | |
3223 | nvlist_free(zct.zct_zplprops); | |
3224 | return (error); | |
34dc7c2f | 3225 | } |
34dc7c2f BB |
3226 | } |
3227 | ||
6f1ffb06 MA |
3228 | error = dmu_objset_create(fsname, type, |
3229 | is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct); | |
3230 | nvlist_free(zct.zct_zplprops); | |
3231 | ||
34dc7c2f BB |
3232 | /* |
3233 | * It would be nice to do this atomically. | |
3234 | */ | |
3235 | if (error == 0) { | |
6f1ffb06 MA |
3236 | error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, |
3237 | nvprops, outnvl); | |
428870ff | 3238 | if (error != 0) |
13fe0198 | 3239 | (void) dsl_destroy_head(fsname); |
34dc7c2f | 3240 | } |
ba6a2402 BB |
3241 | |
3242 | #ifdef _KERNEL | |
3243 | if (error == 0 && type == DMU_OST_ZVOL) | |
3244 | zvol_create_minors(fsname); | |
3245 | #endif | |
3246 | ||
34dc7c2f BB |
3247 | return (error); |
3248 | } | |
3249 | ||
3250 | /* | |
6f1ffb06 MA |
3251 | * innvl: { |
3252 | * "origin" -> name of origin snapshot | |
3253 | * (optional) "props" -> { prop -> value } | |
3254 | * } | |
34dc7c2f | 3255 | * |
428870ff | 3256 | * outputs: |
6f1ffb06 | 3257 | * outnvl: propname -> error code (int32) |
34dc7c2f BB |
3258 | */ |
3259 | static int | |
6f1ffb06 | 3260 | zfs_ioc_clone(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3261 | { |
6f1ffb06 | 3262 | int error = 0; |
b128c09f | 3263 | nvlist_t *nvprops = NULL; |
6f1ffb06 | 3264 | char *origin_name; |
b128c09f | 3265 | |
6f1ffb06 | 3266 | if (nvlist_lookup_string(innvl, "origin", &origin_name) != 0) |
2e528b49 | 3267 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 3268 | (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); |
b128c09f | 3269 | |
6f1ffb06 MA |
3270 | if (strchr(fsname, '@') || |
3271 | strchr(fsname, '%')) | |
2e528b49 | 3272 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3273 | |
3274 | if (dataset_namecheck(origin_name, NULL, NULL) != 0) | |
2e528b49 | 3275 | return (SET_ERROR(EINVAL)); |
13fe0198 MA |
3276 | error = dmu_objset_clone(fsname, origin_name); |
3277 | if (error != 0) | |
6f1ffb06 | 3278 | return (error); |
b128c09f | 3279 | |
6f1ffb06 MA |
3280 | /* |
3281 | * It would be nice to do this atomically. | |
3282 | */ | |
3283 | if (error == 0) { | |
3284 | error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, | |
3285 | nvprops, outnvl); | |
3286 | if (error != 0) | |
13fe0198 | 3287 | (void) dsl_destroy_head(fsname); |
b128c09f | 3288 | } |
ba6a2402 BB |
3289 | |
3290 | #ifdef _KERNEL | |
3291 | if (error == 0) | |
3292 | zvol_create_minors(fsname); | |
3293 | #endif | |
3294 | ||
6f1ffb06 MA |
3295 | return (error); |
3296 | } | |
9babb374 | 3297 | |
6f1ffb06 MA |
3298 | /* |
3299 | * innvl: { | |
3300 | * "snaps" -> { snapshot1, snapshot2 } | |
3301 | * (optional) "props" -> { prop -> value (string) } | |
3302 | * } | |
3303 | * | |
3304 | * outnvl: snapshot -> error code (int32) | |
6f1ffb06 MA |
3305 | */ |
3306 | static int | |
3307 | zfs_ioc_snapshot(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) | |
3308 | { | |
3309 | nvlist_t *snaps; | |
3310 | nvlist_t *props = NULL; | |
3311 | int error, poollen; | |
3312 | nvpair_t *pair, *pair2; | |
9babb374 | 3313 | |
6f1ffb06 MA |
3314 | (void) nvlist_lookup_nvlist(innvl, "props", &props); |
3315 | if ((error = zfs_check_userprops(poolname, props)) != 0) | |
3316 | return (error); | |
3317 | ||
3318 | if (!nvlist_empty(props) && | |
3319 | zfs_earlier_version(poolname, SPA_VERSION_SNAP_PROPS)) | |
2e528b49 | 3320 | return (SET_ERROR(ENOTSUP)); |
6f1ffb06 MA |
3321 | |
3322 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) | |
2e528b49 | 3323 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3324 | poollen = strlen(poolname); |
3325 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; | |
3326 | pair = nvlist_next_nvpair(snaps, pair)) { | |
3327 | const char *name = nvpair_name(pair); | |
3328 | const char *cp = strchr(name, '@'); | |
3329 | ||
3330 | /* | |
3331 | * The snap name must contain an @, and the part after it must | |
3332 | * contain only valid characters. | |
3333 | */ | |
da536844 MA |
3334 | if (cp == NULL || |
3335 | zfs_component_namecheck(cp + 1, NULL, NULL) != 0) | |
2e528b49 | 3336 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3337 | |
3338 | /* | |
3339 | * The snap must be in the specified pool. | |
3340 | */ | |
3341 | if (strncmp(name, poolname, poollen) != 0 || | |
3342 | (name[poollen] != '/' && name[poollen] != '@')) | |
2e528b49 | 3343 | return (SET_ERROR(EXDEV)); |
6f1ffb06 MA |
3344 | |
3345 | /* This must be the only snap of this fs. */ | |
3346 | for (pair2 = nvlist_next_nvpair(snaps, pair); | |
3347 | pair2 != NULL; pair2 = nvlist_next_nvpair(snaps, pair2)) { | |
3348 | if (strncmp(name, nvpair_name(pair2), cp - name + 1) | |
3349 | == 0) { | |
2e528b49 | 3350 | return (SET_ERROR(EXDEV)); |
6f1ffb06 MA |
3351 | } |
3352 | } | |
3353 | } | |
3354 | ||
13fe0198 | 3355 | error = dsl_dataset_snapshot(snaps, props, outnvl); |
ba6a2402 BB |
3356 | |
3357 | #ifdef _KERNEL | |
3358 | if (error == 0) | |
3359 | zvol_create_minors(poolname); | |
3360 | #endif | |
3361 | ||
6f1ffb06 MA |
3362 | return (error); |
3363 | } | |
3364 | ||
3365 | /* | |
3366 | * innvl: "message" -> string | |
3367 | */ | |
3368 | /* ARGSUSED */ | |
3369 | static int | |
3370 | zfs_ioc_log_history(const char *unused, nvlist_t *innvl, nvlist_t *outnvl) | |
3371 | { | |
3372 | char *message; | |
3373 | spa_t *spa; | |
3374 | int error; | |
3375 | char *poolname; | |
3376 | ||
3377 | /* | |
3378 | * The poolname in the ioctl is not set, we get it from the TSD, | |
3379 | * which was set at the end of the last successful ioctl that allows | |
3380 | * logging. The secpolicy func already checked that it is set. | |
3381 | * Only one log ioctl is allowed after each successful ioctl, so | |
3382 | * we clear the TSD here. | |
3383 | */ | |
3384 | poolname = tsd_get(zfs_allow_log_key); | |
3385 | (void) tsd_set(zfs_allow_log_key, NULL); | |
3386 | error = spa_open(poolname, &spa, FTAG); | |
3387 | strfree(poolname); | |
3388 | if (error != 0) | |
3389 | return (error); | |
3390 | ||
3391 | if (nvlist_lookup_string(innvl, "message", &message) != 0) { | |
3392 | spa_close(spa, FTAG); | |
2e528b49 | 3393 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3394 | } |
3395 | ||
3396 | if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { | |
3397 | spa_close(spa, FTAG); | |
2e528b49 | 3398 | return (SET_ERROR(ENOTSUP)); |
6f1ffb06 MA |
3399 | } |
3400 | ||
3401 | error = spa_history_log(spa, message); | |
3402 | spa_close(spa, FTAG); | |
b128c09f | 3403 | return (error); |
34dc7c2f BB |
3404 | } |
3405 | ||
ebe7e575 | 3406 | /* |
13fe0198 MA |
3407 | * The dp_config_rwlock must not be held when calling this, because the |
3408 | * unmount may need to write out data. | |
3409 | * | |
3410 | * This function is best-effort. Callers must deal gracefully if it | |
3411 | * remains mounted (or is remounted after this call). | |
d09f25dc WA |
3412 | * |
3413 | * XXX: This function should detect a failure to unmount a snapdir of a dataset | |
3414 | * and return the appropriate error code when it is mounted. Its Illumos and | |
3415 | * FreeBSD counterparts do this. We do not do this on Linux because there is no | |
3416 | * clear way to access the mount information that FreeBSD and Illumos use to | |
3417 | * distinguish between things with mounted snapshot directories, and things | |
3418 | * without mounted snapshot directories, which include zvols. Returning a | |
3419 | * failure for the latter causes `zfs destroy` to fail on zvol snapshots. | |
ebe7e575 | 3420 | */ |
d09f25dc | 3421 | int |
13fe0198 | 3422 | zfs_unmount_snap(const char *snapname) |
34dc7c2f | 3423 | { |
ebe7e575 BB |
3424 | zfs_sb_t *zsb = NULL; |
3425 | char *dsname; | |
ebe7e575 BB |
3426 | char *fullname; |
3427 | char *ptr; | |
34dc7c2f | 3428 | |
13fe0198 | 3429 | if ((ptr = strchr(snapname, '@')) == NULL) |
d09f25dc | 3430 | return (0); |
34dc7c2f | 3431 | |
20f04f08 RY |
3432 | dsname = kmem_alloc(ptr - snapname + 1, KM_SLEEP); |
3433 | strlcpy(dsname, snapname, ptr - snapname + 1); | |
3434 | fullname = strdup(snapname); | |
3435 | ||
13fe0198 MA |
3436 | if (zfs_sb_hold(dsname, FTAG, &zsb, B_FALSE) == 0) { |
3437 | ASSERT(!dsl_pool_config_held(dmu_objset_pool(zsb->z_os))); | |
3438 | (void) zfsctl_unmount_snapshot(zsb, fullname, MNT_FORCE); | |
ebe7e575 | 3439 | zfs_sb_rele(zsb, FTAG); |
34dc7c2f | 3440 | } |
ebe7e575 | 3441 | |
20f04f08 | 3442 | kmem_free(dsname, ptr - snapname + 1); |
ebe7e575 BB |
3443 | strfree(fullname); |
3444 | ||
d09f25dc | 3445 | return (0); |
13fe0198 MA |
3446 | } |
3447 | ||
3448 | /* ARGSUSED */ | |
3449 | static int | |
3450 | zfs_unmount_snap_cb(const char *snapname, void *arg) | |
3451 | { | |
d09f25dc | 3452 | return (zfs_unmount_snap(snapname)); |
13fe0198 MA |
3453 | } |
3454 | ||
3455 | /* | |
3456 | * When a clone is destroyed, its origin may also need to be destroyed, | |
3457 | * in which case it must be unmounted. This routine will do that unmount | |
3458 | * if necessary. | |
3459 | */ | |
3460 | void | |
3461 | zfs_destroy_unmount_origin(const char *fsname) | |
3462 | { | |
3463 | int error; | |
3464 | objset_t *os; | |
3465 | dsl_dataset_t *ds; | |
3466 | ||
3467 | error = dmu_objset_hold(fsname, FTAG, &os); | |
3468 | if (error != 0) | |
3469 | return; | |
3470 | ds = dmu_objset_ds(os); | |
3471 | if (dsl_dir_is_clone(ds->ds_dir) && DS_IS_DEFER_DESTROY(ds->ds_prev)) { | |
3472 | char originname[MAXNAMELEN]; | |
3473 | dsl_dataset_name(ds->ds_prev, originname); | |
3474 | dmu_objset_rele(os, FTAG); | |
d09f25dc | 3475 | (void) zfs_unmount_snap(originname); |
13fe0198 MA |
3476 | } else { |
3477 | dmu_objset_rele(os, FTAG); | |
3478 | } | |
34dc7c2f BB |
3479 | } |
3480 | ||
3481 | /* | |
6f1ffb06 MA |
3482 | * innvl: { |
3483 | * "snaps" -> { snapshot1, snapshot2 } | |
3484 | * (optional boolean) "defer" | |
3485 | * } | |
34dc7c2f | 3486 | * |
6f1ffb06 | 3487 | * outnvl: snapshot -> error code (int32) |
34dc7c2f | 3488 | */ |
da536844 | 3489 | /* ARGSUSED */ |
34dc7c2f | 3490 | static int |
6f1ffb06 | 3491 | zfs_ioc_destroy_snaps(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3492 | { |
6f1ffb06 | 3493 | nvlist_t *snaps; |
330d06f9 | 3494 | nvpair_t *pair; |
6f1ffb06 | 3495 | boolean_t defer; |
34dc7c2f | 3496 | |
6f1ffb06 | 3497 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) |
2e528b49 | 3498 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 3499 | defer = nvlist_exists(innvl, "defer"); |
330d06f9 | 3500 | |
6f1ffb06 MA |
3501 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; |
3502 | pair = nvlist_next_nvpair(snaps, pair)) { | |
da536844 MA |
3503 | (void) zfs_unmount_snap(nvpair_name(pair)); |
3504 | (void) zvol_remove_minor(nvpair_name(pair)); | |
3505 | } | |
3506 | ||
3507 | return (dsl_destroy_snapshots_nvl(snaps, defer, outnvl)); | |
3508 | } | |
3509 | ||
3510 | /* | |
3511 | * Create bookmarks. Bookmark names are of the form <fs>#<bmark>. | |
3512 | * All bookmarks must be in the same pool. | |
3513 | * | |
3514 | * innvl: { | |
3515 | * bookmark1 -> snapshot1, bookmark2 -> snapshot2 | |
3516 | * } | |
3517 | * | |
3518 | * outnvl: bookmark -> error code (int32) | |
3519 | * | |
3520 | */ | |
3521 | /* ARGSUSED */ | |
3522 | static int | |
3523 | zfs_ioc_bookmark(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) | |
3524 | { | |
3525 | nvpair_t *pair, *pair2; | |
3526 | ||
3527 | for (pair = nvlist_next_nvpair(innvl, NULL); | |
3528 | pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { | |
3529 | char *snap_name; | |
3530 | ||
3531 | /* | |
3532 | * Verify the snapshot argument. | |
3533 | */ | |
3534 | if (nvpair_value_string(pair, &snap_name) != 0) | |
3535 | return (SET_ERROR(EINVAL)); | |
3536 | ||
3537 | ||
3538 | /* Verify that the keys (bookmarks) are unique */ | |
3539 | for (pair2 = nvlist_next_nvpair(innvl, pair); | |
3540 | pair2 != NULL; pair2 = nvlist_next_nvpair(innvl, pair2)) { | |
3541 | if (strcmp(nvpair_name(pair), nvpair_name(pair2)) == 0) | |
3542 | return (SET_ERROR(EINVAL)); | |
3543 | } | |
3544 | } | |
3545 | ||
3546 | return (dsl_bookmark_create(innvl, outnvl)); | |
3547 | } | |
3548 | ||
3549 | /* | |
3550 | * innvl: { | |
3551 | * property 1, property 2, ... | |
3552 | * } | |
3553 | * | |
3554 | * outnvl: { | |
3555 | * bookmark name 1 -> { property 1, property 2, ... }, | |
3556 | * bookmark name 2 -> { property 1, property 2, ... } | |
3557 | * } | |
3558 | * | |
3559 | */ | |
3560 | static int | |
3561 | zfs_ioc_get_bookmarks(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) | |
3562 | { | |
3563 | return (dsl_get_bookmarks(fsname, innvl, outnvl)); | |
3564 | } | |
3565 | ||
3566 | /* | |
3567 | * innvl: { | |
3568 | * bookmark name 1, bookmark name 2 | |
3569 | * } | |
3570 | * | |
3571 | * outnvl: bookmark -> error code (int32) | |
3572 | * | |
3573 | */ | |
3574 | static int | |
3575 | zfs_ioc_destroy_bookmarks(const char *poolname, nvlist_t *innvl, | |
3576 | nvlist_t *outnvl) | |
3577 | { | |
3578 | int error, poollen; | |
3579 | nvpair_t *pair; | |
3580 | ||
3581 | poollen = strlen(poolname); | |
3582 | for (pair = nvlist_next_nvpair(innvl, NULL); | |
3583 | pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { | |
330d06f9 | 3584 | const char *name = nvpair_name(pair); |
da536844 | 3585 | const char *cp = strchr(name, '#'); |
6f1ffb06 | 3586 | |
330d06f9 | 3587 | /* |
da536844 MA |
3588 | * The bookmark name must contain an #, and the part after it |
3589 | * must contain only valid characters. | |
3590 | */ | |
3591 | if (cp == NULL || | |
3592 | zfs_component_namecheck(cp + 1, NULL, NULL) != 0) | |
3593 | return (SET_ERROR(EINVAL)); | |
3594 | ||
3595 | /* | |
3596 | * The bookmark must be in the specified pool. | |
330d06f9 | 3597 | */ |
6f1ffb06 | 3598 | if (strncmp(name, poolname, poollen) != 0 || |
da536844 | 3599 | (name[poollen] != '/' && name[poollen] != '#')) |
2e528b49 | 3600 | return (SET_ERROR(EXDEV)); |
330d06f9 MA |
3601 | } |
3602 | ||
da536844 MA |
3603 | error = dsl_bookmark_destroy(innvl, outnvl); |
3604 | return (error); | |
34dc7c2f BB |
3605 | } |
3606 | ||
3607 | /* | |
3608 | * inputs: | |
3609 | * zc_name name of dataset to destroy | |
3610 | * zc_objset_type type of objset | |
45d1cae3 | 3611 | * zc_defer_destroy mark for deferred destroy |
34dc7c2f BB |
3612 | * |
3613 | * outputs: none | |
3614 | */ | |
3615 | static int | |
3616 | zfs_ioc_destroy(zfs_cmd_t *zc) | |
3617 | { | |
428870ff | 3618 | int err; |
d09f25dc WA |
3619 | |
3620 | if (zc->zc_objset_type == DMU_OST_ZFS) { | |
3621 | err = zfs_unmount_snap(zc->zc_name); | |
3622 | if (err != 0) | |
3623 | return (err); | |
3624 | } | |
34dc7c2f | 3625 | |
13fe0198 MA |
3626 | if (strchr(zc->zc_name, '@')) |
3627 | err = dsl_destroy_snapshot(zc->zc_name, zc->zc_defer_destroy); | |
3628 | else | |
3629 | err = dsl_destroy_head(zc->zc_name); | |
428870ff BB |
3630 | if (zc->zc_objset_type == DMU_OST_ZVOL && err == 0) |
3631 | (void) zvol_remove_minor(zc->zc_name); | |
3632 | return (err); | |
34dc7c2f BB |
3633 | } |
3634 | ||
3635 | /* | |
46ba1e59 | 3636 | * fsname is name of dataset to rollback (to most recent snapshot) |
34dc7c2f | 3637 | * |
46ba1e59 MA |
3638 | * innvl is not used. |
3639 | * | |
3640 | * outnvl: "target" -> name of most recent snapshot | |
3641 | * } | |
34dc7c2f | 3642 | */ |
46ba1e59 | 3643 | /* ARGSUSED */ |
34dc7c2f | 3644 | static int |
46ba1e59 | 3645 | zfs_ioc_rollback(const char *fsname, nvlist_t *args, nvlist_t *outnvl) |
34dc7c2f | 3646 | { |
3558fd73 | 3647 | zfs_sb_t *zsb; |
13fe0198 | 3648 | int error; |
34dc7c2f | 3649 | |
46ba1e59 | 3650 | if (get_zfs_sb(fsname, &zsb) == 0) { |
3558fd73 | 3651 | error = zfs_suspend_fs(zsb); |
34dc7c2f BB |
3652 | if (error == 0) { |
3653 | int resume_err; | |
3654 | ||
46ba1e59 MA |
3655 | error = dsl_dataset_rollback(fsname, zsb, outnvl); |
3656 | resume_err = zfs_resume_fs(zsb, fsname); | |
34dc7c2f | 3657 | error = error ? error : resume_err; |
34dc7c2f | 3658 | } |
2cf7f52b | 3659 | deactivate_super(zsb->z_sb); |
34dc7c2f | 3660 | } else { |
46ba1e59 | 3661 | error = dsl_dataset_rollback(fsname, NULL, outnvl); |
34dc7c2f | 3662 | } |
13fe0198 MA |
3663 | return (error); |
3664 | } | |
34dc7c2f | 3665 | |
13fe0198 MA |
3666 | static int |
3667 | recursive_unmount(const char *fsname, void *arg) | |
3668 | { | |
3669 | const char *snapname = arg; | |
3670 | char *fullname; | |
00fcdee1 | 3671 | int error; |
428870ff | 3672 | |
13fe0198 | 3673 | fullname = kmem_asprintf("%s@%s", fsname, snapname); |
00fcdee1 | 3674 | error = zfs_unmount_snap(fullname); |
13fe0198 | 3675 | strfree(fullname); |
00fcdee1 AV |
3676 | |
3677 | return (error); | |
34dc7c2f BB |
3678 | } |
3679 | ||
3680 | /* | |
3681 | * inputs: | |
3682 | * zc_name old name of dataset | |
3683 | * zc_value new name of dataset | |
3684 | * zc_cookie recursive flag (only valid for snapshots) | |
3685 | * | |
3686 | * outputs: none | |
3687 | */ | |
3688 | static int | |
3689 | zfs_ioc_rename(zfs_cmd_t *zc) | |
3690 | { | |
3691 | boolean_t recursive = zc->zc_cookie & 1; | |
13fe0198 | 3692 | char *at; |
34dc7c2f BB |
3693 | |
3694 | zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; | |
3695 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
3696 | strchr(zc->zc_value, '%')) | |
2e528b49 | 3697 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3698 | |
13fe0198 MA |
3699 | at = strchr(zc->zc_name, '@'); |
3700 | if (at != NULL) { | |
3701 | /* snaps must be in same fs */ | |
9554185d SH |
3702 | int error; |
3703 | ||
13fe0198 | 3704 | if (strncmp(zc->zc_name, zc->zc_value, at - zc->zc_name + 1)) |
2e528b49 | 3705 | return (SET_ERROR(EXDEV)); |
13fe0198 MA |
3706 | *at = '\0'; |
3707 | if (zc->zc_objset_type == DMU_OST_ZFS) { | |
9554185d | 3708 | error = dmu_objset_find(zc->zc_name, |
13fe0198 MA |
3709 | recursive_unmount, at + 1, |
3710 | recursive ? DS_FIND_CHILDREN : 0); | |
9554185d SH |
3711 | if (error != 0) { |
3712 | *at = '@'; | |
13fe0198 | 3713 | return (error); |
9554185d | 3714 | } |
13fe0198 | 3715 | } |
9554185d SH |
3716 | error = dsl_dataset_rename_snapshot(zc->zc_name, |
3717 | at + 1, strchr(zc->zc_value, '@') + 1, recursive); | |
3718 | *at = '@'; | |
3719 | ||
3720 | return (error); | |
13fe0198 | 3721 | } else { |
ba6a2402 | 3722 | return (dsl_dir_rename(zc->zc_name, zc->zc_value)); |
95c73795 | 3723 | } |
34dc7c2f BB |
3724 | } |
3725 | ||
428870ff BB |
3726 | static int |
3727 | zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr) | |
3728 | { | |
3729 | const char *propname = nvpair_name(pair); | |
3730 | boolean_t issnap = (strchr(dsname, '@') != NULL); | |
3731 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
3732 | uint64_t intval; | |
3733 | int err; | |
3734 | ||
3735 | if (prop == ZPROP_INVAL) { | |
3736 | if (zfs_prop_user(propname)) { | |
c65aa5b2 BB |
3737 | if ((err = zfs_secpolicy_write_perms(dsname, |
3738 | ZFS_DELEG_PERM_USERPROP, cr))) | |
428870ff BB |
3739 | return (err); |
3740 | return (0); | |
3741 | } | |
3742 | ||
3743 | if (!issnap && zfs_prop_userquota(propname)) { | |
3744 | const char *perm = NULL; | |
3745 | const char *uq_prefix = | |
3746 | zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA]; | |
3747 | const char *gq_prefix = | |
3748 | zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA]; | |
3749 | ||
3750 | if (strncmp(propname, uq_prefix, | |
3751 | strlen(uq_prefix)) == 0) { | |
3752 | perm = ZFS_DELEG_PERM_USERQUOTA; | |
3753 | } else if (strncmp(propname, gq_prefix, | |
3754 | strlen(gq_prefix)) == 0) { | |
3755 | perm = ZFS_DELEG_PERM_GROUPQUOTA; | |
3756 | } else { | |
3757 | /* USERUSED and GROUPUSED are read-only */ | |
2e528b49 | 3758 | return (SET_ERROR(EINVAL)); |
428870ff BB |
3759 | } |
3760 | ||
c65aa5b2 | 3761 | if ((err = zfs_secpolicy_write_perms(dsname, perm, cr))) |
428870ff BB |
3762 | return (err); |
3763 | return (0); | |
3764 | } | |
3765 | ||
2e528b49 | 3766 | return (SET_ERROR(EINVAL)); |
428870ff BB |
3767 | } |
3768 | ||
3769 | if (issnap) | |
2e528b49 | 3770 | return (SET_ERROR(EINVAL)); |
428870ff BB |
3771 | |
3772 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
3773 | /* | |
3774 | * dsl_prop_get_all_impl() returns properties in this | |
3775 | * format. | |
3776 | */ | |
3777 | nvlist_t *attrs; | |
3778 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
3779 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3780 | &pair) == 0); | |
3781 | } | |
3782 | ||
3783 | /* | |
3784 | * Check that this value is valid for this pool version | |
3785 | */ | |
3786 | switch (prop) { | |
3787 | case ZFS_PROP_COMPRESSION: | |
3788 | /* | |
3789 | * If the user specified gzip compression, make sure | |
3790 | * the SPA supports it. We ignore any errors here since | |
3791 | * we'll catch them later. | |
3792 | */ | |
3793 | if (nvpair_type(pair) == DATA_TYPE_UINT64 && | |
3794 | nvpair_value_uint64(pair, &intval) == 0) { | |
3795 | if (intval >= ZIO_COMPRESS_GZIP_1 && | |
3796 | intval <= ZIO_COMPRESS_GZIP_9 && | |
3797 | zfs_earlier_version(dsname, | |
3798 | SPA_VERSION_GZIP_COMPRESSION)) { | |
2e528b49 | 3799 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3800 | } |
3801 | ||
3802 | if (intval == ZIO_COMPRESS_ZLE && | |
3803 | zfs_earlier_version(dsname, | |
3804 | SPA_VERSION_ZLE_COMPRESSION)) | |
2e528b49 | 3805 | return (SET_ERROR(ENOTSUP)); |
428870ff | 3806 | |
9759c60f | 3807 | if (intval == ZIO_COMPRESS_LZ4) { |
9759c60f ED |
3808 | spa_t *spa; |
3809 | ||
3810 | if ((err = spa_open(dsname, &spa, FTAG)) != 0) | |
3811 | return (err); | |
3812 | ||
fa86b5db MA |
3813 | if (!spa_feature_is_enabled(spa, |
3814 | SPA_FEATURE_LZ4_COMPRESS)) { | |
9759c60f | 3815 | spa_close(spa, FTAG); |
2e528b49 | 3816 | return (SET_ERROR(ENOTSUP)); |
9759c60f ED |
3817 | } |
3818 | spa_close(spa, FTAG); | |
3819 | } | |
3820 | ||
428870ff BB |
3821 | /* |
3822 | * If this is a bootable dataset then | |
3823 | * verify that the compression algorithm | |
3824 | * is supported for booting. We must return | |
3825 | * something other than ENOTSUP since it | |
3826 | * implies a downrev pool version. | |
3827 | */ | |
3828 | if (zfs_is_bootfs(dsname) && | |
3829 | !BOOTFS_COMPRESS_VALID(intval)) { | |
2e528b49 | 3830 | return (SET_ERROR(ERANGE)); |
428870ff BB |
3831 | } |
3832 | } | |
3833 | break; | |
3834 | ||
3835 | case ZFS_PROP_COPIES: | |
3836 | if (zfs_earlier_version(dsname, SPA_VERSION_DITTO_BLOCKS)) | |
2e528b49 | 3837 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3838 | break; |
3839 | ||
3840 | case ZFS_PROP_DEDUP: | |
3841 | if (zfs_earlier_version(dsname, SPA_VERSION_DEDUP)) | |
2e528b49 | 3842 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3843 | break; |
3844 | ||
3845 | case ZFS_PROP_SHARESMB: | |
3846 | if (zpl_earlier_version(dsname, ZPL_VERSION_FUID)) | |
2e528b49 | 3847 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3848 | break; |
3849 | ||
3850 | case ZFS_PROP_ACLINHERIT: | |
3851 | if (nvpair_type(pair) == DATA_TYPE_UINT64 && | |
3852 | nvpair_value_uint64(pair, &intval) == 0) { | |
3853 | if (intval == ZFS_ACL_PASSTHROUGH_X && | |
3854 | zfs_earlier_version(dsname, | |
3855 | SPA_VERSION_PASSTHROUGH_X)) | |
2e528b49 | 3856 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3857 | } |
3858 | break; | |
e75c13c3 BB |
3859 | default: |
3860 | break; | |
428870ff BB |
3861 | } |
3862 | ||
3863 | return (zfs_secpolicy_setprop(dsname, prop, pair, CRED())); | |
3864 | } | |
3865 | ||
3866 | /* | |
3867 | * Removes properties from the given props list that fail permission checks | |
3868 | * needed to clear them and to restore them in case of a receive error. For each | |
3869 | * property, make sure we have both set and inherit permissions. | |
3870 | * | |
3871 | * Returns the first error encountered if any permission checks fail. If the | |
3872 | * caller provides a non-NULL errlist, it also gives the complete list of names | |
3873 | * of all the properties that failed a permission check along with the | |
3874 | * corresponding error numbers. The caller is responsible for freeing the | |
3875 | * returned errlist. | |
3876 | * | |
3877 | * If every property checks out successfully, zero is returned and the list | |
3878 | * pointed at by errlist is NULL. | |
3879 | */ | |
3880 | static int | |
3881 | zfs_check_clearable(char *dataset, nvlist_t *props, nvlist_t **errlist) | |
b128c09f BB |
3882 | { |
3883 | zfs_cmd_t *zc; | |
428870ff BB |
3884 | nvpair_t *pair, *next_pair; |
3885 | nvlist_t *errors; | |
3886 | int err, rv = 0; | |
b128c09f BB |
3887 | |
3888 | if (props == NULL) | |
428870ff BB |
3889 | return (0); |
3890 | ||
3891 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3892 | ||
efcd79a8 | 3893 | zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP); |
b128c09f | 3894 | (void) strcpy(zc->zc_name, dataset); |
428870ff BB |
3895 | pair = nvlist_next_nvpair(props, NULL); |
3896 | while (pair != NULL) { | |
3897 | next_pair = nvlist_next_nvpair(props, pair); | |
3898 | ||
3899 | (void) strcpy(zc->zc_value, nvpair_name(pair)); | |
3900 | if ((err = zfs_check_settable(dataset, pair, CRED())) != 0 || | |
6f1ffb06 | 3901 | (err = zfs_secpolicy_inherit_prop(zc, NULL, CRED())) != 0) { |
428870ff BB |
3902 | VERIFY(nvlist_remove_nvpair(props, pair) == 0); |
3903 | VERIFY(nvlist_add_int32(errors, | |
3904 | zc->zc_value, err) == 0); | |
3905 | } | |
3906 | pair = next_pair; | |
b128c09f BB |
3907 | } |
3908 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
428870ff BB |
3909 | |
3910 | if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) { | |
3911 | nvlist_free(errors); | |
3912 | errors = NULL; | |
3913 | } else { | |
3914 | VERIFY(nvpair_value_int32(pair, &rv) == 0); | |
3915 | } | |
3916 | ||
3917 | if (errlist == NULL) | |
3918 | nvlist_free(errors); | |
3919 | else | |
3920 | *errlist = errors; | |
3921 | ||
3922 | return (rv); | |
3923 | } | |
3924 | ||
3925 | static boolean_t | |
3926 | propval_equals(nvpair_t *p1, nvpair_t *p2) | |
3927 | { | |
3928 | if (nvpair_type(p1) == DATA_TYPE_NVLIST) { | |
3929 | /* dsl_prop_get_all_impl() format */ | |
3930 | nvlist_t *attrs; | |
3931 | VERIFY(nvpair_value_nvlist(p1, &attrs) == 0); | |
3932 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3933 | &p1) == 0); | |
3934 | } | |
3935 | ||
3936 | if (nvpair_type(p2) == DATA_TYPE_NVLIST) { | |
3937 | nvlist_t *attrs; | |
3938 | VERIFY(nvpair_value_nvlist(p2, &attrs) == 0); | |
3939 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3940 | &p2) == 0); | |
3941 | } | |
3942 | ||
3943 | if (nvpair_type(p1) != nvpair_type(p2)) | |
3944 | return (B_FALSE); | |
3945 | ||
3946 | if (nvpair_type(p1) == DATA_TYPE_STRING) { | |
3947 | char *valstr1, *valstr2; | |
3948 | ||
3949 | VERIFY(nvpair_value_string(p1, (char **)&valstr1) == 0); | |
3950 | VERIFY(nvpair_value_string(p2, (char **)&valstr2) == 0); | |
3951 | return (strcmp(valstr1, valstr2) == 0); | |
3952 | } else { | |
3953 | uint64_t intval1, intval2; | |
3954 | ||
3955 | VERIFY(nvpair_value_uint64(p1, &intval1) == 0); | |
3956 | VERIFY(nvpair_value_uint64(p2, &intval2) == 0); | |
3957 | return (intval1 == intval2); | |
3958 | } | |
b128c09f BB |
3959 | } |
3960 | ||
428870ff BB |
3961 | /* |
3962 | * Remove properties from props if they are not going to change (as determined | |
3963 | * by comparison with origprops). Remove them from origprops as well, since we | |
3964 | * do not need to clear or restore properties that won't change. | |
3965 | */ | |
3966 | static void | |
3967 | props_reduce(nvlist_t *props, nvlist_t *origprops) | |
3968 | { | |
3969 | nvpair_t *pair, *next_pair; | |
3970 | ||
3971 | if (origprops == NULL) | |
3972 | return; /* all props need to be received */ | |
3973 | ||
3974 | pair = nvlist_next_nvpair(props, NULL); | |
3975 | while (pair != NULL) { | |
3976 | const char *propname = nvpair_name(pair); | |
3977 | nvpair_t *match; | |
3978 | ||
3979 | next_pair = nvlist_next_nvpair(props, pair); | |
3980 | ||
3981 | if ((nvlist_lookup_nvpair(origprops, propname, | |
3982 | &match) != 0) || !propval_equals(pair, match)) | |
3983 | goto next; /* need to set received value */ | |
3984 | ||
3985 | /* don't clear the existing received value */ | |
3986 | (void) nvlist_remove_nvpair(origprops, match); | |
3987 | /* don't bother receiving the property */ | |
3988 | (void) nvlist_remove_nvpair(props, pair); | |
3989 | next: | |
3990 | pair = next_pair; | |
3991 | } | |
3992 | } | |
3993 | ||
3994 | #ifdef DEBUG | |
3995 | static boolean_t zfs_ioc_recv_inject_err; | |
3996 | #endif | |
3997 | ||
34dc7c2f BB |
3998 | /* |
3999 | * inputs: | |
4000 | * zc_name name of containing filesystem | |
4001 | * zc_nvlist_src{_size} nvlist of properties to apply | |
4002 | * zc_value name of snapshot to create | |
4003 | * zc_string name of clone origin (if DRR_FLAG_CLONE) | |
4004 | * zc_cookie file descriptor to recv from | |
4005 | * zc_begin_record the BEGIN record of the stream (not byteswapped) | |
4006 | * zc_guid force flag | |
572e2857 BB |
4007 | * zc_cleanup_fd cleanup-on-exit file descriptor |
4008 | * zc_action_handle handle for this guid/ds mapping (or zero on first call) | |
34dc7c2f BB |
4009 | * |
4010 | * outputs: | |
4011 | * zc_cookie number of bytes read | |
428870ff BB |
4012 | * zc_nvlist_dst{_size} error for each unapplied received property |
4013 | * zc_obj zprop_errflags_t | |
572e2857 | 4014 | * zc_action_handle handle for this guid/ds mapping |
34dc7c2f BB |
4015 | */ |
4016 | static int | |
4017 | zfs_ioc_recv(zfs_cmd_t *zc) | |
4018 | { | |
4019 | file_t *fp; | |
34dc7c2f | 4020 | dmu_recv_cookie_t drc; |
34dc7c2f | 4021 | boolean_t force = (boolean_t)zc->zc_guid; |
428870ff BB |
4022 | int fd; |
4023 | int error = 0; | |
4024 | int props_error = 0; | |
4025 | nvlist_t *errors; | |
34dc7c2f | 4026 | offset_t off; |
428870ff BB |
4027 | nvlist_t *props = NULL; /* sent properties */ |
4028 | nvlist_t *origprops = NULL; /* existing properties */ | |
13fe0198 | 4029 | char *origin = NULL; |
34dc7c2f BB |
4030 | char *tosnap; |
4031 | char tofs[ZFS_MAXNAMELEN]; | |
428870ff | 4032 | boolean_t first_recvd_props = B_FALSE; |
34dc7c2f BB |
4033 | |
4034 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
4035 | strchr(zc->zc_value, '@') == NULL || | |
4036 | strchr(zc->zc_value, '%')) | |
2e528b49 | 4037 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
4038 | |
4039 | (void) strcpy(tofs, zc->zc_value); | |
4040 | tosnap = strchr(tofs, '@'); | |
428870ff | 4041 | *tosnap++ = '\0'; |
34dc7c2f | 4042 | |
b8864a23 | 4043 | if (zc->zc_nvlist_src != 0 && |
34dc7c2f | 4044 | (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
9babb374 | 4045 | zc->zc_iflags, &props)) != 0) |
34dc7c2f BB |
4046 | return (error); |
4047 | ||
4048 | fd = zc->zc_cookie; | |
4049 | fp = getf(fd); | |
4050 | if (fp == NULL) { | |
4051 | nvlist_free(props); | |
2e528b49 | 4052 | return (SET_ERROR(EBADF)); |
34dc7c2f BB |
4053 | } |
4054 | ||
428870ff BB |
4055 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
4056 | ||
13fe0198 MA |
4057 | if (zc->zc_string[0]) |
4058 | origin = zc->zc_string; | |
4059 | ||
4060 | error = dmu_recv_begin(tofs, tosnap, | |
4061 | &zc->zc_begin_record, force, origin, &drc); | |
4062 | if (error != 0) | |
4063 | goto out; | |
4064 | ||
4065 | /* | |
4066 | * Set properties before we receive the stream so that they are applied | |
4067 | * to the new data. Note that we must call dmu_recv_stream() if | |
4068 | * dmu_recv_begin() succeeds. | |
4069 | */ | |
4070 | if (props != NULL && !drc.drc_newfs) { | |
4071 | if (spa_version(dsl_dataset_get_spa(drc.drc_ds)) >= | |
4072 | SPA_VERSION_RECVD_PROPS && | |
4073 | !dsl_prop_get_hasrecvd(tofs)) | |
428870ff | 4074 | first_recvd_props = B_TRUE; |
428870ff | 4075 | |
b128c09f | 4076 | /* |
428870ff BB |
4077 | * If new received properties are supplied, they are to |
4078 | * completely replace the existing received properties, so stash | |
4079 | * away the existing ones. | |
b128c09f | 4080 | */ |
13fe0198 | 4081 | if (dsl_prop_get_received(tofs, &origprops) == 0) { |
428870ff BB |
4082 | nvlist_t *errlist = NULL; |
4083 | /* | |
4084 | * Don't bother writing a property if its value won't | |
4085 | * change (and avoid the unnecessary security checks). | |
4086 | * | |
4087 | * The first receive after SPA_VERSION_RECVD_PROPS is a | |
4088 | * special case where we blow away all local properties | |
4089 | * regardless. | |
4090 | */ | |
4091 | if (!first_recvd_props) | |
4092 | props_reduce(props, origprops); | |
13fe0198 | 4093 | if (zfs_check_clearable(tofs, origprops, &errlist) != 0) |
428870ff BB |
4094 | (void) nvlist_merge(errors, errlist, 0); |
4095 | nvlist_free(errlist); | |
b128c09f | 4096 | |
13fe0198 MA |
4097 | if (clear_received_props(tofs, origprops, |
4098 | first_recvd_props ? NULL : props) != 0) | |
428870ff | 4099 | zc->zc_obj |= ZPROP_ERR_NOCLEAR; |
13fe0198 | 4100 | } else { |
428870ff BB |
4101 | zc->zc_obj |= ZPROP_ERR_NOCLEAR; |
4102 | } | |
13fe0198 MA |
4103 | } |
4104 | ||
4105 | if (props != NULL) { | |
4106 | props_error = dsl_prop_set_hasrecvd(tofs); | |
428870ff | 4107 | |
13fe0198 MA |
4108 | if (props_error == 0) { |
4109 | (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED, | |
4110 | props, errors); | |
4111 | } | |
428870ff BB |
4112 | } |
4113 | ||
6f1ffb06 MA |
4114 | if (zc->zc_nvlist_dst_size != 0 && |
4115 | (nvlist_smush(errors, zc->zc_nvlist_dst_size) != 0 || | |
4116 | put_nvlist(zc, errors) != 0)) { | |
b128c09f | 4117 | /* |
428870ff BB |
4118 | * Caller made zc->zc_nvlist_dst less than the minimum expected |
4119 | * size or supplied an invalid address. | |
b128c09f | 4120 | */ |
2e528b49 | 4121 | props_error = SET_ERROR(EINVAL); |
34dc7c2f BB |
4122 | } |
4123 | ||
34dc7c2f | 4124 | off = fp->f_offset; |
572e2857 BB |
4125 | error = dmu_recv_stream(&drc, fp->f_vnode, &off, zc->zc_cleanup_fd, |
4126 | &zc->zc_action_handle); | |
34dc7c2f | 4127 | |
45d1cae3 | 4128 | if (error == 0) { |
3558fd73 | 4129 | zfs_sb_t *zsb = NULL; |
b128c09f | 4130 | |
3558fd73 | 4131 | if (get_zfs_sb(tofs, &zsb) == 0) { |
45d1cae3 BB |
4132 | /* online recv */ |
4133 | int end_err; | |
b128c09f | 4134 | |
3558fd73 | 4135 | error = zfs_suspend_fs(zsb); |
45d1cae3 BB |
4136 | /* |
4137 | * If the suspend fails, then the recv_end will | |
4138 | * likely also fail, and clean up after itself. | |
4139 | */ | |
831baf06 | 4140 | end_err = dmu_recv_end(&drc, zsb); |
428870ff | 4141 | if (error == 0) |
3558fd73 | 4142 | error = zfs_resume_fs(zsb, tofs); |
45d1cae3 | 4143 | error = error ? error : end_err; |
2cf7f52b | 4144 | deactivate_super(zsb->z_sb); |
b128c09f | 4145 | } else { |
831baf06 | 4146 | error = dmu_recv_end(&drc, NULL); |
34dc7c2f | 4147 | } |
34dc7c2f BB |
4148 | } |
4149 | ||
4150 | zc->zc_cookie = off - fp->f_offset; | |
4151 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
4152 | fp->f_offset = off; | |
4153 | ||
428870ff BB |
4154 | #ifdef DEBUG |
4155 | if (zfs_ioc_recv_inject_err) { | |
4156 | zfs_ioc_recv_inject_err = B_FALSE; | |
4157 | error = 1; | |
4158 | } | |
4159 | #endif | |
ba6a2402 BB |
4160 | |
4161 | #ifdef _KERNEL | |
4162 | if (error == 0) | |
4163 | zvol_create_minors(tofs); | |
4164 | #endif | |
4165 | ||
b128c09f BB |
4166 | /* |
4167 | * On error, restore the original props. | |
4168 | */ | |
13fe0198 MA |
4169 | if (error != 0 && props != NULL && !drc.drc_newfs) { |
4170 | if (clear_received_props(tofs, props, NULL) != 0) { | |
4171 | /* | |
4172 | * We failed to clear the received properties. | |
4173 | * Since we may have left a $recvd value on the | |
4174 | * system, we can't clear the $hasrecvd flag. | |
4175 | */ | |
428870ff | 4176 | zc->zc_obj |= ZPROP_ERR_NORESTORE; |
13fe0198 MA |
4177 | } else if (first_recvd_props) { |
4178 | dsl_prop_unset_hasrecvd(tofs); | |
428870ff BB |
4179 | } |
4180 | ||
4181 | if (origprops == NULL && !drc.drc_newfs) { | |
4182 | /* We failed to stash the original properties. */ | |
4183 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
4184 | } | |
4185 | ||
4186 | /* | |
4187 | * dsl_props_set() will not convert RECEIVED to LOCAL on or | |
4188 | * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL | |
4189 | * explictly if we're restoring local properties cleared in the | |
4190 | * first new-style receive. | |
4191 | */ | |
4192 | if (origprops != NULL && | |
4193 | zfs_set_prop_nvlist(tofs, (first_recvd_props ? | |
4194 | ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED), | |
4195 | origprops, NULL) != 0) { | |
4196 | /* | |
4197 | * We stashed the original properties but failed to | |
4198 | * restore them. | |
4199 | */ | |
4200 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
4201 | } | |
b128c09f BB |
4202 | } |
4203 | out: | |
b128c09f BB |
4204 | nvlist_free(props); |
4205 | nvlist_free(origprops); | |
428870ff | 4206 | nvlist_free(errors); |
34dc7c2f | 4207 | releasef(fd); |
428870ff BB |
4208 | |
4209 | if (error == 0) | |
4210 | error = props_error; | |
4211 | ||
34dc7c2f BB |
4212 | return (error); |
4213 | } | |
4214 | ||
4215 | /* | |
4216 | * inputs: | |
4217 | * zc_name name of snapshot to send | |
34dc7c2f | 4218 | * zc_cookie file descriptor to send stream to |
572e2857 BB |
4219 | * zc_obj fromorigin flag (mutually exclusive with zc_fromobj) |
4220 | * zc_sendobj objsetid of snapshot to send | |
4221 | * zc_fromobj objsetid of incremental fromsnap (may be zero) | |
330d06f9 MA |
4222 | * zc_guid if set, estimate size of stream only. zc_cookie is ignored. |
4223 | * output size in zc_objset_type. | |
9b67f605 | 4224 | * zc_flags if =1, WRITE_EMBEDDED records are permitted |
34dc7c2f | 4225 | * |
da536844 MA |
4226 | * outputs: |
4227 | * zc_objset_type estimated size, if zc_guid is set | |
34dc7c2f BB |
4228 | */ |
4229 | static int | |
4230 | zfs_ioc_send(zfs_cmd_t *zc) | |
4231 | { | |
34dc7c2f BB |
4232 | int error; |
4233 | offset_t off; | |
330d06f9 | 4234 | boolean_t estimate = (zc->zc_guid != 0); |
9b67f605 | 4235 | boolean_t embedok = (zc->zc_flags & 0x1); |
34dc7c2f | 4236 | |
13fe0198 MA |
4237 | if (zc->zc_obj != 0) { |
4238 | dsl_pool_t *dp; | |
4239 | dsl_dataset_t *tosnap; | |
34dc7c2f | 4240 | |
13fe0198 MA |
4241 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
4242 | if (error != 0) | |
572e2857 | 4243 | return (error); |
13fe0198 MA |
4244 | |
4245 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap); | |
4246 | if (error != 0) { | |
4247 | dsl_pool_rele(dp, FTAG); | |
34dc7c2f BB |
4248 | return (error); |
4249 | } | |
13fe0198 MA |
4250 | |
4251 | if (dsl_dir_is_clone(tosnap->ds_dir)) | |
d683ddbb JG |
4252 | zc->zc_fromobj = |
4253 | dsl_dir_phys(tosnap->ds_dir)->dd_origin_obj; | |
13fe0198 MA |
4254 | dsl_dataset_rele(tosnap, FTAG); |
4255 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
4256 | } |
4257 | ||
13fe0198 MA |
4258 | if (estimate) { |
4259 | dsl_pool_t *dp; | |
4260 | dsl_dataset_t *tosnap; | |
4261 | dsl_dataset_t *fromsnap = NULL; | |
4262 | ||
4263 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); | |
4264 | if (error != 0) | |
4265 | return (error); | |
6f1ffb06 | 4266 | |
13fe0198 MA |
4267 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap); |
4268 | if (error != 0) { | |
4269 | dsl_pool_rele(dp, FTAG); | |
4270 | return (error); | |
6f1ffb06 MA |
4271 | } |
4272 | ||
13fe0198 MA |
4273 | if (zc->zc_fromobj != 0) { |
4274 | error = dsl_dataset_hold_obj(dp, zc->zc_fromobj, | |
4275 | FTAG, &fromsnap); | |
4276 | if (error != 0) { | |
4277 | dsl_dataset_rele(tosnap, FTAG); | |
4278 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
4279 | return (error); |
4280 | } | |
4281 | } | |
34dc7c2f | 4282 | |
6f1ffb06 | 4283 | error = dmu_send_estimate(tosnap, fromsnap, |
330d06f9 | 4284 | &zc->zc_objset_type); |
13fe0198 MA |
4285 | |
4286 | if (fromsnap != NULL) | |
4287 | dsl_dataset_rele(fromsnap, FTAG); | |
4288 | dsl_dataset_rele(tosnap, FTAG); | |
4289 | dsl_pool_rele(dp, FTAG); | |
330d06f9 MA |
4290 | } else { |
4291 | file_t *fp = getf(zc->zc_cookie); | |
13fe0198 | 4292 | if (fp == NULL) |
2e528b49 | 4293 | return (SET_ERROR(EBADF)); |
34dc7c2f | 4294 | |
330d06f9 | 4295 | off = fp->f_offset; |
13fe0198 | 4296 | error = dmu_send_obj(zc->zc_name, zc->zc_sendobj, |
9b67f605 | 4297 | zc->zc_fromobj, embedok, zc->zc_cookie, fp->f_vnode, &off); |
34dc7c2f | 4298 | |
330d06f9 MA |
4299 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) |
4300 | fp->f_offset = off; | |
4301 | releasef(zc->zc_cookie); | |
4302 | } | |
34dc7c2f BB |
4303 | return (error); |
4304 | } | |
4305 | ||
37abac6d BP |
4306 | /* |
4307 | * inputs: | |
4308 | * zc_name name of snapshot on which to report progress | |
4309 | * zc_cookie file descriptor of send stream | |
4310 | * | |
4311 | * outputs: | |
4312 | * zc_cookie number of bytes written in send stream thus far | |
4313 | */ | |
4314 | static int | |
4315 | zfs_ioc_send_progress(zfs_cmd_t *zc) | |
4316 | { | |
13fe0198 | 4317 | dsl_pool_t *dp; |
37abac6d BP |
4318 | dsl_dataset_t *ds; |
4319 | dmu_sendarg_t *dsp = NULL; | |
4320 | int error; | |
4321 | ||
13fe0198 MA |
4322 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
4323 | if (error != 0) | |
37abac6d BP |
4324 | return (error); |
4325 | ||
13fe0198 MA |
4326 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &ds); |
4327 | if (error != 0) { | |
4328 | dsl_pool_rele(dp, FTAG); | |
4329 | return (error); | |
4330 | } | |
4331 | ||
37abac6d BP |
4332 | mutex_enter(&ds->ds_sendstream_lock); |
4333 | ||
4334 | /* | |
4335 | * Iterate over all the send streams currently active on this dataset. | |
4336 | * If there's one which matches the specified file descriptor _and_ the | |
4337 | * stream was started by the current process, return the progress of | |
4338 | * that stream. | |
4339 | */ | |
4340 | ||
4341 | for (dsp = list_head(&ds->ds_sendstreams); dsp != NULL; | |
4342 | dsp = list_next(&ds->ds_sendstreams, dsp)) { | |
4343 | if (dsp->dsa_outfd == zc->zc_cookie && | |
4344 | dsp->dsa_proc->group_leader == curproc->group_leader) | |
4345 | break; | |
4346 | } | |
4347 | ||
4348 | if (dsp != NULL) | |
4349 | zc->zc_cookie = *(dsp->dsa_off); | |
4350 | else | |
2e528b49 | 4351 | error = SET_ERROR(ENOENT); |
37abac6d BP |
4352 | |
4353 | mutex_exit(&ds->ds_sendstream_lock); | |
4354 | dsl_dataset_rele(ds, FTAG); | |
13fe0198 | 4355 | dsl_pool_rele(dp, FTAG); |
37abac6d BP |
4356 | return (error); |
4357 | } | |
4358 | ||
34dc7c2f BB |
4359 | static int |
4360 | zfs_ioc_inject_fault(zfs_cmd_t *zc) | |
4361 | { | |
4362 | int id, error; | |
4363 | ||
4364 | error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id, | |
4365 | &zc->zc_inject_record); | |
4366 | ||
4367 | if (error == 0) | |
4368 | zc->zc_guid = (uint64_t)id; | |
4369 | ||
4370 | return (error); | |
4371 | } | |
4372 | ||
4373 | static int | |
4374 | zfs_ioc_clear_fault(zfs_cmd_t *zc) | |
4375 | { | |
4376 | return (zio_clear_fault((int)zc->zc_guid)); | |
4377 | } | |
4378 | ||
4379 | static int | |
4380 | zfs_ioc_inject_list_next(zfs_cmd_t *zc) | |
4381 | { | |
4382 | int id = (int)zc->zc_guid; | |
4383 | int error; | |
4384 | ||
4385 | error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name), | |
4386 | &zc->zc_inject_record); | |
4387 | ||
4388 | zc->zc_guid = id; | |
4389 | ||
4390 | return (error); | |
4391 | } | |
4392 | ||
4393 | static int | |
4394 | zfs_ioc_error_log(zfs_cmd_t *zc) | |
4395 | { | |
4396 | spa_t *spa; | |
4397 | int error; | |
4398 | size_t count = (size_t)zc->zc_nvlist_dst_size; | |
4399 | ||
4400 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
4401 | return (error); | |
4402 | ||
4403 | error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst, | |
4404 | &count); | |
4405 | if (error == 0) | |
4406 | zc->zc_nvlist_dst_size = count; | |
4407 | else | |
4408 | zc->zc_nvlist_dst_size = spa_get_errlog_size(spa); | |
4409 | ||
4410 | spa_close(spa, FTAG); | |
4411 | ||
4412 | return (error); | |
4413 | } | |
4414 | ||
4415 | static int | |
4416 | zfs_ioc_clear(zfs_cmd_t *zc) | |
4417 | { | |
4418 | spa_t *spa; | |
4419 | vdev_t *vd; | |
34dc7c2f BB |
4420 | int error; |
4421 | ||
34dc7c2f | 4422 | /* |
b128c09f | 4423 | * On zpool clear we also fix up missing slogs |
34dc7c2f | 4424 | */ |
b128c09f BB |
4425 | mutex_enter(&spa_namespace_lock); |
4426 | spa = spa_lookup(zc->zc_name); | |
4427 | if (spa == NULL) { | |
4428 | mutex_exit(&spa_namespace_lock); | |
2e528b49 | 4429 | return (SET_ERROR(EIO)); |
b128c09f | 4430 | } |
428870ff | 4431 | if (spa_get_log_state(spa) == SPA_LOG_MISSING) { |
b128c09f | 4432 | /* we need to let spa_open/spa_load clear the chains */ |
428870ff | 4433 | spa_set_log_state(spa, SPA_LOG_CLEAR); |
34dc7c2f | 4434 | } |
428870ff | 4435 | spa->spa_last_open_failed = 0; |
b128c09f | 4436 | mutex_exit(&spa_namespace_lock); |
34dc7c2f | 4437 | |
428870ff BB |
4438 | if (zc->zc_cookie & ZPOOL_NO_REWIND) { |
4439 | error = spa_open(zc->zc_name, &spa, FTAG); | |
4440 | } else { | |
4441 | nvlist_t *policy; | |
4442 | nvlist_t *config = NULL; | |
4443 | ||
b8864a23 | 4444 | if (zc->zc_nvlist_src == 0) |
2e528b49 | 4445 | return (SET_ERROR(EINVAL)); |
428870ff BB |
4446 | |
4447 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
4448 | zc->zc_nvlist_src_size, zc->zc_iflags, &policy)) == 0) { | |
4449 | error = spa_open_rewind(zc->zc_name, &spa, FTAG, | |
4450 | policy, &config); | |
4451 | if (config != NULL) { | |
572e2857 BB |
4452 | int err; |
4453 | ||
4454 | if ((err = put_nvlist(zc, config)) != 0) | |
4455 | error = err; | |
428870ff BB |
4456 | nvlist_free(config); |
4457 | } | |
4458 | nvlist_free(policy); | |
4459 | } | |
4460 | } | |
4461 | ||
13fe0198 | 4462 | if (error != 0) |
b128c09f BB |
4463 | return (error); |
4464 | ||
428870ff | 4465 | spa_vdev_state_enter(spa, SCL_NONE); |
34dc7c2f BB |
4466 | |
4467 | if (zc->zc_guid == 0) { | |
4468 | vd = NULL; | |
b128c09f BB |
4469 | } else { |
4470 | vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE); | |
34dc7c2f | 4471 | if (vd == NULL) { |
b128c09f | 4472 | (void) spa_vdev_state_exit(spa, NULL, ENODEV); |
34dc7c2f | 4473 | spa_close(spa, FTAG); |
2e528b49 | 4474 | return (SET_ERROR(ENODEV)); |
34dc7c2f BB |
4475 | } |
4476 | } | |
4477 | ||
b128c09f BB |
4478 | vdev_clear(spa, vd); |
4479 | ||
4480 | (void) spa_vdev_state_exit(spa, NULL, 0); | |
34dc7c2f | 4481 | |
b128c09f BB |
4482 | /* |
4483 | * Resume any suspended I/Os. | |
4484 | */ | |
9babb374 | 4485 | if (zio_resume(spa) != 0) |
2e528b49 | 4486 | error = SET_ERROR(EIO); |
34dc7c2f BB |
4487 | |
4488 | spa_close(spa, FTAG); | |
4489 | ||
9babb374 | 4490 | return (error); |
34dc7c2f BB |
4491 | } |
4492 | ||
1bd201e7 CS |
4493 | static int |
4494 | zfs_ioc_pool_reopen(zfs_cmd_t *zc) | |
4495 | { | |
4496 | spa_t *spa; | |
4497 | int error; | |
4498 | ||
4499 | error = spa_open(zc->zc_name, &spa, FTAG); | |
13fe0198 | 4500 | if (error != 0) |
1bd201e7 CS |
4501 | return (error); |
4502 | ||
4503 | spa_vdev_state_enter(spa, SCL_NONE); | |
65947351 GW |
4504 | |
4505 | /* | |
4506 | * If a resilver is already in progress then set the | |
4507 | * spa_scrub_reopen flag to B_TRUE so that we don't restart | |
4508 | * the scan as a side effect of the reopen. Otherwise, let | |
4509 | * vdev_open() decided if a resilver is required. | |
4510 | */ | |
4511 | spa->spa_scrub_reopen = dsl_scan_resilvering(spa->spa_dsl_pool); | |
1bd201e7 | 4512 | vdev_reopen(spa->spa_root_vdev); |
65947351 GW |
4513 | spa->spa_scrub_reopen = B_FALSE; |
4514 | ||
1bd201e7 CS |
4515 | (void) spa_vdev_state_exit(spa, NULL, 0); |
4516 | spa_close(spa, FTAG); | |
4517 | return (0); | |
4518 | } | |
34dc7c2f BB |
4519 | /* |
4520 | * inputs: | |
4521 | * zc_name name of filesystem | |
4522 | * zc_value name of origin snapshot | |
4523 | * | |
428870ff BB |
4524 | * outputs: |
4525 | * zc_string name of conflicting snapshot, if there is one | |
34dc7c2f BB |
4526 | */ |
4527 | static int | |
4528 | zfs_ioc_promote(zfs_cmd_t *zc) | |
4529 | { | |
4530 | char *cp; | |
4531 | ||
4532 | /* | |
4533 | * We don't need to unmount *all* the origin fs's snapshots, but | |
4534 | * it's easier. | |
4535 | */ | |
4536 | cp = strchr(zc->zc_value, '@'); | |
4537 | if (cp) | |
4538 | *cp = '\0'; | |
4539 | (void) dmu_objset_find(zc->zc_value, | |
13fe0198 | 4540 | zfs_unmount_snap_cb, NULL, DS_FIND_SNAPSHOTS); |
428870ff | 4541 | return (dsl_dataset_promote(zc->zc_name, zc->zc_string)); |
34dc7c2f BB |
4542 | } |
4543 | ||
9babb374 BB |
4544 | /* |
4545 | * Retrieve a single {user|group}{used|quota}@... property. | |
4546 | * | |
4547 | * inputs: | |
4548 | * zc_name name of filesystem | |
4549 | * zc_objset_type zfs_userquota_prop_t | |
4550 | * zc_value domain name (eg. "S-1-234-567-89") | |
4551 | * zc_guid RID/UID/GID | |
4552 | * | |
4553 | * outputs: | |
4554 | * zc_cookie property value | |
4555 | */ | |
4556 | static int | |
4557 | zfs_ioc_userspace_one(zfs_cmd_t *zc) | |
4558 | { | |
3558fd73 | 4559 | zfs_sb_t *zsb; |
9babb374 BB |
4560 | int error; |
4561 | ||
4562 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
2e528b49 | 4563 | return (SET_ERROR(EINVAL)); |
9babb374 | 4564 | |
3558fd73 | 4565 | error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE); |
13fe0198 | 4566 | if (error != 0) |
9babb374 BB |
4567 | return (error); |
4568 | ||
3558fd73 | 4569 | error = zfs_userspace_one(zsb, |
9babb374 | 4570 | zc->zc_objset_type, zc->zc_value, zc->zc_guid, &zc->zc_cookie); |
3558fd73 | 4571 | zfs_sb_rele(zsb, FTAG); |
9babb374 BB |
4572 | |
4573 | return (error); | |
4574 | } | |
4575 | ||
4576 | /* | |
4577 | * inputs: | |
4578 | * zc_name name of filesystem | |
4579 | * zc_cookie zap cursor | |
4580 | * zc_objset_type zfs_userquota_prop_t | |
4581 | * zc_nvlist_dst[_size] buffer to fill (not really an nvlist) | |
4582 | * | |
4583 | * outputs: | |
4584 | * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t) | |
4585 | * zc_cookie zap cursor | |
4586 | */ | |
4587 | static int | |
4588 | zfs_ioc_userspace_many(zfs_cmd_t *zc) | |
4589 | { | |
3558fd73 | 4590 | zfs_sb_t *zsb; |
428870ff | 4591 | int bufsize = zc->zc_nvlist_dst_size; |
3558fd73 BB |
4592 | int error; |
4593 | void *buf; | |
428870ff BB |
4594 | |
4595 | if (bufsize <= 0) | |
2e528b49 | 4596 | return (SET_ERROR(ENOMEM)); |
9babb374 | 4597 | |
3558fd73 | 4598 | error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE); |
13fe0198 | 4599 | if (error != 0) |
9babb374 BB |
4600 | return (error); |
4601 | ||
2b8cad61 | 4602 | buf = vmem_alloc(bufsize, KM_SLEEP); |
9babb374 | 4603 | |
3558fd73 | 4604 | error = zfs_userspace_many(zsb, zc->zc_objset_type, &zc->zc_cookie, |
9babb374 BB |
4605 | buf, &zc->zc_nvlist_dst_size); |
4606 | ||
4607 | if (error == 0) { | |
4608 | error = xcopyout(buf, | |
4609 | (void *)(uintptr_t)zc->zc_nvlist_dst, | |
4610 | zc->zc_nvlist_dst_size); | |
4611 | } | |
2b8cad61 | 4612 | vmem_free(buf, bufsize); |
3558fd73 | 4613 | zfs_sb_rele(zsb, FTAG); |
9babb374 BB |
4614 | |
4615 | return (error); | |
4616 | } | |
4617 | ||
4618 | /* | |
4619 | * inputs: | |
4620 | * zc_name name of filesystem | |
4621 | * | |
4622 | * outputs: | |
4623 | * none | |
4624 | */ | |
4625 | static int | |
4626 | zfs_ioc_userspace_upgrade(zfs_cmd_t *zc) | |
4627 | { | |
4628 | objset_t *os; | |
428870ff | 4629 | int error = 0; |
3558fd73 | 4630 | zfs_sb_t *zsb; |
9babb374 | 4631 | |
3558fd73 BB |
4632 | if (get_zfs_sb(zc->zc_name, &zsb) == 0) { |
4633 | if (!dmu_objset_userused_enabled(zsb->z_os)) { | |
9babb374 BB |
4634 | /* |
4635 | * If userused is not enabled, it may be because the | |
4636 | * objset needs to be closed & reopened (to grow the | |
4637 | * objset_phys_t). Suspend/resume the fs will do that. | |
4638 | */ | |
3558fd73 | 4639 | error = zfs_suspend_fs(zsb); |
831baf06 KW |
4640 | if (error == 0) { |
4641 | dmu_objset_refresh_ownership(zsb->z_os, | |
4642 | zsb); | |
3558fd73 | 4643 | error = zfs_resume_fs(zsb, zc->zc_name); |
831baf06 | 4644 | } |
9babb374 BB |
4645 | } |
4646 | if (error == 0) | |
3558fd73 | 4647 | error = dmu_objset_userspace_upgrade(zsb->z_os); |
2cf7f52b | 4648 | deactivate_super(zsb->z_sb); |
9babb374 | 4649 | } else { |
428870ff BB |
4650 | /* XXX kind of reading contents without owning */ |
4651 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
13fe0198 | 4652 | if (error != 0) |
9babb374 BB |
4653 | return (error); |
4654 | ||
4655 | error = dmu_objset_userspace_upgrade(os); | |
428870ff | 4656 | dmu_objset_rele(os, FTAG); |
9babb374 BB |
4657 | } |
4658 | ||
4659 | return (error); | |
4660 | } | |
4661 | ||
34dc7c2f BB |
4662 | static int |
4663 | zfs_ioc_share(zfs_cmd_t *zc) | |
4664 | { | |
2e528b49 | 4665 | return (SET_ERROR(ENOSYS)); |
34dc7c2f BB |
4666 | } |
4667 | ||
9babb374 BB |
4668 | ace_t full_access[] = { |
4669 | {(uid_t)-1, ACE_ALL_PERMS, ACE_EVERYONE, 0} | |
4670 | }; | |
4671 | ||
572e2857 BB |
4672 | /* |
4673 | * inputs: | |
4674 | * zc_name name of containing filesystem | |
4675 | * zc_obj object # beyond which we want next in-use object # | |
4676 | * | |
4677 | * outputs: | |
4678 | * zc_obj next in-use object # | |
4679 | */ | |
4680 | static int | |
4681 | zfs_ioc_next_obj(zfs_cmd_t *zc) | |
4682 | { | |
4683 | objset_t *os = NULL; | |
4684 | int error; | |
4685 | ||
4686 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
13fe0198 | 4687 | if (error != 0) |
572e2857 BB |
4688 | return (error); |
4689 | ||
4690 | error = dmu_object_next(os, &zc->zc_obj, B_FALSE, | |
d683ddbb | 4691 | dsl_dataset_phys(os->os_dsl_dataset)->ds_prev_snap_txg); |
572e2857 BB |
4692 | |
4693 | dmu_objset_rele(os, FTAG); | |
4694 | return (error); | |
4695 | } | |
4696 | ||
4697 | /* | |
4698 | * inputs: | |
4699 | * zc_name name of filesystem | |
4700 | * zc_value prefix name for snapshot | |
4701 | * zc_cleanup_fd cleanup-on-exit file descriptor for calling process | |
4702 | * | |
4703 | * outputs: | |
6f1ffb06 | 4704 | * zc_value short name of new snapshot |
572e2857 BB |
4705 | */ |
4706 | static int | |
4707 | zfs_ioc_tmp_snapshot(zfs_cmd_t *zc) | |
4708 | { | |
4709 | char *snap_name; | |
13fe0198 | 4710 | char *hold_name; |
572e2857 | 4711 | int error; |
13fe0198 | 4712 | minor_t minor; |
572e2857 | 4713 | |
13fe0198 MA |
4714 | error = zfs_onexit_fd_hold(zc->zc_cleanup_fd, &minor); |
4715 | if (error != 0) | |
572e2857 | 4716 | return (error); |
572e2857 | 4717 | |
13fe0198 MA |
4718 | snap_name = kmem_asprintf("%s-%016llx", zc->zc_value, |
4719 | (u_longlong_t)ddi_get_lbolt64()); | |
4720 | hold_name = kmem_asprintf("%%%s", zc->zc_value); | |
4721 | ||
4722 | error = dsl_dataset_snapshot_tmp(zc->zc_name, snap_name, minor, | |
4723 | hold_name); | |
4724 | if (error == 0) | |
4725 | (void) strcpy(zc->zc_value, snap_name); | |
572e2857 | 4726 | strfree(snap_name); |
13fe0198 MA |
4727 | strfree(hold_name); |
4728 | zfs_onexit_fd_rele(zc->zc_cleanup_fd); | |
4729 | return (error); | |
572e2857 BB |
4730 | } |
4731 | ||
4732 | /* | |
4733 | * inputs: | |
4734 | * zc_name name of "to" snapshot | |
4735 | * zc_value name of "from" snapshot | |
4736 | * zc_cookie file descriptor to write diff data on | |
4737 | * | |
4738 | * outputs: | |
4739 | * dmu_diff_record_t's to the file descriptor | |
4740 | */ | |
4741 | static int | |
4742 | zfs_ioc_diff(zfs_cmd_t *zc) | |
4743 | { | |
572e2857 BB |
4744 | file_t *fp; |
4745 | offset_t off; | |
4746 | int error; | |
4747 | ||
572e2857 | 4748 | fp = getf(zc->zc_cookie); |
13fe0198 | 4749 | if (fp == NULL) |
2e528b49 | 4750 | return (SET_ERROR(EBADF)); |
572e2857 BB |
4751 | |
4752 | off = fp->f_offset; | |
4753 | ||
13fe0198 | 4754 | error = dmu_diff(zc->zc_name, zc->zc_value, fp->f_vnode, &off); |
572e2857 BB |
4755 | |
4756 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
4757 | fp->f_offset = off; | |
4758 | releasef(zc->zc_cookie); | |
4759 | ||
572e2857 BB |
4760 | return (error); |
4761 | } | |
4762 | ||
9babb374 BB |
4763 | /* |
4764 | * Remove all ACL files in shares dir | |
4765 | */ | |
3c9609b3 | 4766 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
4767 | static int |
4768 | zfs_smb_acl_purge(znode_t *dzp) | |
4769 | { | |
4770 | zap_cursor_t zc; | |
4771 | zap_attribute_t zap; | |
3558fd73 | 4772 | zfs_sb_t *zsb = ZTOZSB(dzp); |
9babb374 BB |
4773 | int error; |
4774 | ||
3558fd73 | 4775 | for (zap_cursor_init(&zc, zsb->z_os, dzp->z_id); |
9babb374 BB |
4776 | (error = zap_cursor_retrieve(&zc, &zap)) == 0; |
4777 | zap_cursor_advance(&zc)) { | |
4778 | if ((error = VOP_REMOVE(ZTOV(dzp), zap.za_name, kcred, | |
4779 | NULL, 0)) != 0) | |
4780 | break; | |
4781 | } | |
4782 | zap_cursor_fini(&zc); | |
4783 | return (error); | |
4784 | } | |
3c9609b3 | 4785 | #endif /* HAVE_SMB_SHARE */ |
9babb374 BB |
4786 | |
4787 | static int | |
4788 | zfs_ioc_smb_acl(zfs_cmd_t *zc) | |
4789 | { | |
3c9609b3 | 4790 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
4791 | vnode_t *vp; |
4792 | znode_t *dzp; | |
4793 | vnode_t *resourcevp = NULL; | |
4794 | znode_t *sharedir; | |
3558fd73 | 4795 | zfs_sb_t *zsb; |
9babb374 BB |
4796 | nvlist_t *nvlist; |
4797 | char *src, *target; | |
4798 | vattr_t vattr; | |
4799 | vsecattr_t vsec; | |
4800 | int error = 0; | |
4801 | ||
4802 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
4803 | NO_FOLLOW, NULL, &vp)) != 0) | |
4804 | return (error); | |
4805 | ||
4806 | /* Now make sure mntpnt and dataset are ZFS */ | |
4807 | ||
4808 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
4809 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
4810 | zc->zc_name) != 0)) { | |
4811 | VN_RELE(vp); | |
2e528b49 | 4812 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
4813 | } |
4814 | ||
4815 | dzp = VTOZ(vp); | |
3558fd73 BB |
4816 | zsb = ZTOZSB(dzp); |
4817 | ZFS_ENTER(zsb); | |
9babb374 BB |
4818 | |
4819 | /* | |
4820 | * Create share dir if its missing. | |
4821 | */ | |
3558fd73 BB |
4822 | mutex_enter(&zsb->z_lock); |
4823 | if (zsb->z_shares_dir == 0) { | |
9babb374 BB |
4824 | dmu_tx_t *tx; |
4825 | ||
3558fd73 | 4826 | tx = dmu_tx_create(zsb->z_os); |
9babb374 BB |
4827 | dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, TRUE, |
4828 | ZFS_SHARES_DIR); | |
4829 | dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL); | |
4830 | error = dmu_tx_assign(tx, TXG_WAIT); | |
13fe0198 | 4831 | if (error != 0) { |
9babb374 BB |
4832 | dmu_tx_abort(tx); |
4833 | } else { | |
3558fd73 | 4834 | error = zfs_create_share_dir(zsb, tx); |
9babb374 BB |
4835 | dmu_tx_commit(tx); |
4836 | } | |
13fe0198 | 4837 | if (error != 0) { |
3558fd73 | 4838 | mutex_exit(&zsb->z_lock); |
9babb374 | 4839 | VN_RELE(vp); |
3558fd73 | 4840 | ZFS_EXIT(zsb); |
9babb374 BB |
4841 | return (error); |
4842 | } | |
4843 | } | |
3558fd73 | 4844 | mutex_exit(&zsb->z_lock); |
9babb374 | 4845 | |
3558fd73 BB |
4846 | ASSERT(zsb->z_shares_dir); |
4847 | if ((error = zfs_zget(zsb, zsb->z_shares_dir, &sharedir)) != 0) { | |
9babb374 | 4848 | VN_RELE(vp); |
3558fd73 | 4849 | ZFS_EXIT(zsb); |
9babb374 BB |
4850 | return (error); |
4851 | } | |
4852 | ||
4853 | switch (zc->zc_cookie) { | |
4854 | case ZFS_SMB_ACL_ADD: | |
4855 | vattr.va_mask = AT_MODE|AT_UID|AT_GID|AT_TYPE; | |
9babb374 BB |
4856 | vattr.va_mode = S_IFREG|0777; |
4857 | vattr.va_uid = 0; | |
4858 | vattr.va_gid = 0; | |
4859 | ||
4860 | vsec.vsa_mask = VSA_ACE; | |
4861 | vsec.vsa_aclentp = &full_access; | |
4862 | vsec.vsa_aclentsz = sizeof (full_access); | |
4863 | vsec.vsa_aclcnt = 1; | |
4864 | ||
4865 | error = VOP_CREATE(ZTOV(sharedir), zc->zc_string, | |
4866 | &vattr, EXCL, 0, &resourcevp, kcred, 0, NULL, &vsec); | |
4867 | if (resourcevp) | |
4868 | VN_RELE(resourcevp); | |
4869 | break; | |
4870 | ||
4871 | case ZFS_SMB_ACL_REMOVE: | |
4872 | error = VOP_REMOVE(ZTOV(sharedir), zc->zc_string, kcred, | |
4873 | NULL, 0); | |
4874 | break; | |
4875 | ||
4876 | case ZFS_SMB_ACL_RENAME: | |
4877 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
4878 | zc->zc_nvlist_src_size, zc->zc_iflags, &nvlist)) != 0) { | |
4879 | VN_RELE(vp); | |
3558fd73 | 4880 | ZFS_EXIT(zsb); |
9babb374 BB |
4881 | return (error); |
4882 | } | |
4883 | if (nvlist_lookup_string(nvlist, ZFS_SMB_ACL_SRC, &src) || | |
4884 | nvlist_lookup_string(nvlist, ZFS_SMB_ACL_TARGET, | |
4885 | &target)) { | |
4886 | VN_RELE(vp); | |
4887 | VN_RELE(ZTOV(sharedir)); | |
3558fd73 | 4888 | ZFS_EXIT(zsb); |
428870ff | 4889 | nvlist_free(nvlist); |
9babb374 BB |
4890 | return (error); |
4891 | } | |
4892 | error = VOP_RENAME(ZTOV(sharedir), src, ZTOV(sharedir), target, | |
4893 | kcred, NULL, 0); | |
4894 | nvlist_free(nvlist); | |
4895 | break; | |
4896 | ||
4897 | case ZFS_SMB_ACL_PURGE: | |
4898 | error = zfs_smb_acl_purge(sharedir); | |
4899 | break; | |
4900 | ||
4901 | default: | |
2e528b49 | 4902 | error = SET_ERROR(EINVAL); |
9babb374 BB |
4903 | break; |
4904 | } | |
4905 | ||
4906 | VN_RELE(vp); | |
4907 | VN_RELE(ZTOV(sharedir)); | |
4908 | ||
3558fd73 | 4909 | ZFS_EXIT(zsb); |
9babb374 BB |
4910 | |
4911 | return (error); | |
325f0235 | 4912 | #else |
2e528b49 | 4913 | return (SET_ERROR(ENOTSUP)); |
3c9609b3 | 4914 | #endif /* HAVE_SMB_SHARE */ |
9babb374 BB |
4915 | } |
4916 | ||
45d1cae3 | 4917 | /* |
13fe0198 MA |
4918 | * innvl: { |
4919 | * "holds" -> { snapname -> holdname (string), ... } | |
4920 | * (optional) "cleanup_fd" -> fd (int32) | |
4921 | * } | |
45d1cae3 | 4922 | * |
13fe0198 MA |
4923 | * outnvl: { |
4924 | * snapname -> error value (int32) | |
4925 | * ... | |
4926 | * } | |
45d1cae3 | 4927 | */ |
13fe0198 | 4928 | /* ARGSUSED */ |
45d1cae3 | 4929 | static int |
13fe0198 | 4930 | zfs_ioc_hold(const char *pool, nvlist_t *args, nvlist_t *errlist) |
45d1cae3 | 4931 | { |
13fe0198 MA |
4932 | nvlist_t *holds; |
4933 | int cleanup_fd = -1; | |
572e2857 BB |
4934 | int error; |
4935 | minor_t minor = 0; | |
45d1cae3 | 4936 | |
13fe0198 MA |
4937 | error = nvlist_lookup_nvlist(args, "holds", &holds); |
4938 | if (error != 0) | |
2e528b49 | 4939 | return (SET_ERROR(EINVAL)); |
572e2857 | 4940 | |
13fe0198 MA |
4941 | if (nvlist_lookup_int32(args, "cleanup_fd", &cleanup_fd) == 0) { |
4942 | error = zfs_onexit_fd_hold(cleanup_fd, &minor); | |
4943 | if (error != 0) | |
572e2857 | 4944 | return (error); |
572e2857 | 4945 | } |
572e2857 | 4946 | |
13fe0198 MA |
4947 | error = dsl_dataset_user_hold(holds, minor, errlist); |
4948 | if (minor != 0) | |
4949 | zfs_onexit_fd_rele(cleanup_fd); | |
572e2857 | 4950 | return (error); |
45d1cae3 BB |
4951 | } |
4952 | ||
4953 | /* | |
13fe0198 | 4954 | * innvl is not used. |
45d1cae3 | 4955 | * |
13fe0198 MA |
4956 | * outnvl: { |
4957 | * holdname -> time added (uint64 seconds since epoch) | |
4958 | * ... | |
4959 | * } | |
45d1cae3 | 4960 | */ |
13fe0198 | 4961 | /* ARGSUSED */ |
45d1cae3 | 4962 | static int |
13fe0198 | 4963 | zfs_ioc_get_holds(const char *snapname, nvlist_t *args, nvlist_t *outnvl) |
45d1cae3 | 4964 | { |
13fe0198 | 4965 | return (dsl_dataset_get_holds(snapname, outnvl)); |
45d1cae3 BB |
4966 | } |
4967 | ||
4968 | /* | |
13fe0198 MA |
4969 | * innvl: { |
4970 | * snapname -> { holdname, ... } | |
4971 | * ... | |
4972 | * } | |
45d1cae3 | 4973 | * |
13fe0198 MA |
4974 | * outnvl: { |
4975 | * snapname -> error value (int32) | |
4976 | * ... | |
4977 | * } | |
45d1cae3 | 4978 | */ |
13fe0198 | 4979 | /* ARGSUSED */ |
45d1cae3 | 4980 | static int |
13fe0198 | 4981 | zfs_ioc_release(const char *pool, nvlist_t *holds, nvlist_t *errlist) |
45d1cae3 | 4982 | { |
13fe0198 | 4983 | return (dsl_dataset_user_release(holds, errlist)); |
45d1cae3 BB |
4984 | } |
4985 | ||
26685276 BB |
4986 | /* |
4987 | * inputs: | |
4988 | * zc_guid flags (ZEVENT_NONBLOCK) | |
9b101a73 | 4989 | * zc_cleanup_fd zevent file descriptor |
26685276 BB |
4990 | * |
4991 | * outputs: | |
4992 | * zc_nvlist_dst next nvlist event | |
4993 | * zc_cookie dropped events since last get | |
26685276 BB |
4994 | */ |
4995 | static int | |
4996 | zfs_ioc_events_next(zfs_cmd_t *zc) | |
4997 | { | |
4998 | zfs_zevent_t *ze; | |
4999 | nvlist_t *event = NULL; | |
5000 | minor_t minor; | |
5001 | uint64_t dropped = 0; | |
5002 | int error; | |
5003 | ||
5004 | error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze); | |
5005 | if (error != 0) | |
5006 | return (error); | |
5007 | ||
5008 | do { | |
baa40d45 BB |
5009 | error = zfs_zevent_next(ze, &event, |
5010 | &zc->zc_nvlist_dst_size, &dropped); | |
26685276 BB |
5011 | if (event != NULL) { |
5012 | zc->zc_cookie = dropped; | |
5013 | error = put_nvlist(zc, event); | |
baa40d45 | 5014 | nvlist_free(event); |
26685276 BB |
5015 | } |
5016 | ||
5017 | if (zc->zc_guid & ZEVENT_NONBLOCK) | |
5018 | break; | |
5019 | ||
5020 | if ((error == 0) || (error != ENOENT)) | |
5021 | break; | |
5022 | ||
5023 | error = zfs_zevent_wait(ze); | |
13fe0198 | 5024 | if (error != 0) |
26685276 BB |
5025 | break; |
5026 | } while (1); | |
5027 | ||
5028 | zfs_zevent_fd_rele(zc->zc_cleanup_fd); | |
5029 | ||
5030 | return (error); | |
5031 | } | |
5032 | ||
5033 | /* | |
5034 | * outputs: | |
5035 | * zc_cookie cleared events count | |
5036 | */ | |
5037 | static int | |
5038 | zfs_ioc_events_clear(zfs_cmd_t *zc) | |
5039 | { | |
5040 | int count; | |
5041 | ||
5042 | zfs_zevent_drain_all(&count); | |
5043 | zc->zc_cookie = count; | |
5044 | ||
d1d7e268 | 5045 | return (0); |
26685276 BB |
5046 | } |
5047 | ||
75e3ff58 BB |
5048 | /* |
5049 | * inputs: | |
5050 | * zc_guid eid | ZEVENT_SEEK_START | ZEVENT_SEEK_END | |
5051 | * zc_cleanup zevent file descriptor | |
5052 | */ | |
5053 | static int | |
5054 | zfs_ioc_events_seek(zfs_cmd_t *zc) | |
5055 | { | |
5056 | zfs_zevent_t *ze; | |
5057 | minor_t minor; | |
5058 | int error; | |
5059 | ||
5060 | error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze); | |
5061 | if (error != 0) | |
5062 | return (error); | |
5063 | ||
5064 | error = zfs_zevent_seek(ze, zc->zc_guid); | |
5065 | zfs_zevent_fd_rele(zc->zc_cleanup_fd); | |
5066 | ||
5067 | return (error); | |
5068 | } | |
5069 | ||
330d06f9 MA |
5070 | /* |
5071 | * inputs: | |
5072 | * zc_name name of new filesystem or snapshot | |
5073 | * zc_value full name of old snapshot | |
5074 | * | |
5075 | * outputs: | |
5076 | * zc_cookie space in bytes | |
5077 | * zc_objset_type compressed space in bytes | |
5078 | * zc_perm_action uncompressed space in bytes | |
5079 | */ | |
5080 | static int | |
5081 | zfs_ioc_space_written(zfs_cmd_t *zc) | |
5082 | { | |
5083 | int error; | |
13fe0198 | 5084 | dsl_pool_t *dp; |
330d06f9 MA |
5085 | dsl_dataset_t *new, *old; |
5086 | ||
13fe0198 | 5087 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
330d06f9 MA |
5088 | if (error != 0) |
5089 | return (error); | |
13fe0198 MA |
5090 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &new); |
5091 | if (error != 0) { | |
5092 | dsl_pool_rele(dp, FTAG); | |
5093 | return (error); | |
5094 | } | |
5095 | error = dsl_dataset_hold(dp, zc->zc_value, FTAG, &old); | |
330d06f9 MA |
5096 | if (error != 0) { |
5097 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5098 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
5099 | return (error); |
5100 | } | |
5101 | ||
5102 | error = dsl_dataset_space_written(old, new, &zc->zc_cookie, | |
5103 | &zc->zc_objset_type, &zc->zc_perm_action); | |
5104 | dsl_dataset_rele(old, FTAG); | |
5105 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5106 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
5107 | return (error); |
5108 | } | |
5109 | ||
5110 | /* | |
6f1ffb06 MA |
5111 | * innvl: { |
5112 | * "firstsnap" -> snapshot name | |
5113 | * } | |
330d06f9 | 5114 | * |
6f1ffb06 MA |
5115 | * outnvl: { |
5116 | * "used" -> space in bytes | |
5117 | * "compressed" -> compressed space in bytes | |
5118 | * "uncompressed" -> uncompressed space in bytes | |
5119 | * } | |
330d06f9 MA |
5120 | */ |
5121 | static int | |
6f1ffb06 | 5122 | zfs_ioc_space_snaps(const char *lastsnap, nvlist_t *innvl, nvlist_t *outnvl) |
330d06f9 MA |
5123 | { |
5124 | int error; | |
13fe0198 | 5125 | dsl_pool_t *dp; |
330d06f9 | 5126 | dsl_dataset_t *new, *old; |
6f1ffb06 MA |
5127 | char *firstsnap; |
5128 | uint64_t used, comp, uncomp; | |
330d06f9 | 5129 | |
6f1ffb06 | 5130 | if (nvlist_lookup_string(innvl, "firstsnap", &firstsnap) != 0) |
2e528b49 | 5131 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 5132 | |
13fe0198 | 5133 | error = dsl_pool_hold(lastsnap, FTAG, &dp); |
330d06f9 MA |
5134 | if (error != 0) |
5135 | return (error); | |
13fe0198 MA |
5136 | |
5137 | error = dsl_dataset_hold(dp, lastsnap, FTAG, &new); | |
5138 | if (error != 0) { | |
5139 | dsl_pool_rele(dp, FTAG); | |
5140 | return (error); | |
5141 | } | |
5142 | error = dsl_dataset_hold(dp, firstsnap, FTAG, &old); | |
330d06f9 MA |
5143 | if (error != 0) { |
5144 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5145 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
5146 | return (error); |
5147 | } | |
5148 | ||
6f1ffb06 | 5149 | error = dsl_dataset_space_wouldfree(old, new, &used, &comp, &uncomp); |
330d06f9 MA |
5150 | dsl_dataset_rele(old, FTAG); |
5151 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5152 | dsl_pool_rele(dp, FTAG); |
6f1ffb06 MA |
5153 | fnvlist_add_uint64(outnvl, "used", used); |
5154 | fnvlist_add_uint64(outnvl, "compressed", comp); | |
5155 | fnvlist_add_uint64(outnvl, "uncompressed", uncomp); | |
330d06f9 MA |
5156 | return (error); |
5157 | } | |
5158 | ||
34dc7c2f | 5159 | /* |
6f1ffb06 MA |
5160 | * innvl: { |
5161 | * "fd" -> file descriptor to write stream to (int32) | |
5162 | * (optional) "fromsnap" -> full snap name to send an incremental from | |
9b67f605 MA |
5163 | * (optional) "embedok" -> (value ignored) |
5164 | * presence indicates DRR_WRITE_EMBEDDED records are permitted | |
6f1ffb06 MA |
5165 | * } |
5166 | * | |
5167 | * outnvl is unused | |
34dc7c2f | 5168 | */ |
6f1ffb06 MA |
5169 | /* ARGSUSED */ |
5170 | static int | |
5171 | zfs_ioc_send_new(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) | |
5172 | { | |
6f1ffb06 MA |
5173 | int error; |
5174 | offset_t off; | |
13fe0198 | 5175 | char *fromname = NULL; |
6f1ffb06 | 5176 | int fd; |
13fe0198 | 5177 | file_t *fp; |
9b67f605 | 5178 | boolean_t embedok; |
6f1ffb06 MA |
5179 | |
5180 | error = nvlist_lookup_int32(innvl, "fd", &fd); | |
5181 | if (error != 0) | |
2e528b49 | 5182 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 5183 | |
13fe0198 | 5184 | (void) nvlist_lookup_string(innvl, "fromsnap", &fromname); |
6f1ffb06 | 5185 | |
9b67f605 MA |
5186 | embedok = nvlist_exists(innvl, "embedok"); |
5187 | ||
13fe0198 | 5188 | if ((fp = getf(fd)) == NULL) |
2e528b49 | 5189 | return (SET_ERROR(EBADF)); |
6f1ffb06 MA |
5190 | |
5191 | off = fp->f_offset; | |
9b67f605 | 5192 | error = dmu_send(snapname, fromname, embedok, fd, fp->f_vnode, &off); |
6f1ffb06 MA |
5193 | |
5194 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
5195 | fp->f_offset = off; | |
13fe0198 | 5196 | |
6f1ffb06 | 5197 | releasef(fd); |
6f1ffb06 MA |
5198 | return (error); |
5199 | } | |
5200 | ||
5201 | /* | |
5202 | * Determine approximately how large a zfs send stream will be -- the number | |
5203 | * of bytes that will be written to the fd supplied to zfs_ioc_send_new(). | |
5204 | * | |
5205 | * innvl: { | |
5206 | * (optional) "fromsnap" -> full snap name to send an incremental from | |
5207 | * } | |
5208 | * | |
5209 | * outnvl: { | |
5210 | * "space" -> bytes of space (uint64) | |
5211 | * } | |
5212 | */ | |
5213 | static int | |
5214 | zfs_ioc_send_space(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) | |
5215 | { | |
13fe0198 MA |
5216 | dsl_pool_t *dp; |
5217 | dsl_dataset_t *fromsnap = NULL; | |
5218 | dsl_dataset_t *tosnap; | |
6f1ffb06 MA |
5219 | int error; |
5220 | char *fromname; | |
5221 | uint64_t space; | |
5222 | ||
13fe0198 MA |
5223 | error = dsl_pool_hold(snapname, FTAG, &dp); |
5224 | if (error != 0) | |
6f1ffb06 MA |
5225 | return (error); |
5226 | ||
13fe0198 MA |
5227 | error = dsl_dataset_hold(dp, snapname, FTAG, &tosnap); |
5228 | if (error != 0) { | |
5229 | dsl_pool_rele(dp, FTAG); | |
5230 | return (error); | |
5231 | } | |
5232 | ||
6f1ffb06 MA |
5233 | error = nvlist_lookup_string(innvl, "fromsnap", &fromname); |
5234 | if (error == 0) { | |
13fe0198 MA |
5235 | error = dsl_dataset_hold(dp, fromname, FTAG, &fromsnap); |
5236 | if (error != 0) { | |
5237 | dsl_dataset_rele(tosnap, FTAG); | |
5238 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
5239 | return (error); |
5240 | } | |
5241 | } | |
5242 | ||
5243 | error = dmu_send_estimate(tosnap, fromsnap, &space); | |
5244 | fnvlist_add_uint64(outnvl, "space", space); | |
5245 | ||
5246 | if (fromsnap != NULL) | |
13fe0198 MA |
5247 | dsl_dataset_rele(fromsnap, FTAG); |
5248 | dsl_dataset_rele(tosnap, FTAG); | |
5249 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
5250 | return (error); |
5251 | } | |
5252 | ||
5253 | ||
5254 | static zfs_ioc_vec_t zfs_ioc_vec[ZFS_IOC_LAST - ZFS_IOC_FIRST]; | |
5255 | ||
5256 | static void | |
5257 | zfs_ioctl_register_legacy(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5258 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, | |
5259 | boolean_t log_history, zfs_ioc_poolcheck_t pool_check) | |
5260 | { | |
5261 | zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; | |
5262 | ||
5263 | ASSERT3U(ioc, >=, ZFS_IOC_FIRST); | |
5264 | ASSERT3U(ioc, <, ZFS_IOC_LAST); | |
5265 | ASSERT3P(vec->zvec_legacy_func, ==, NULL); | |
5266 | ASSERT3P(vec->zvec_func, ==, NULL); | |
5267 | ||
5268 | vec->zvec_legacy_func = func; | |
5269 | vec->zvec_secpolicy = secpolicy; | |
5270 | vec->zvec_namecheck = namecheck; | |
5271 | vec->zvec_allow_log = log_history; | |
5272 | vec->zvec_pool_check = pool_check; | |
5273 | } | |
5274 | ||
5275 | /* | |
5276 | * See the block comment at the beginning of this file for details on | |
5277 | * each argument to this function. | |
5278 | */ | |
5279 | static void | |
5280 | zfs_ioctl_register(const char *name, zfs_ioc_t ioc, zfs_ioc_func_t *func, | |
5281 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, | |
5282 | zfs_ioc_poolcheck_t pool_check, boolean_t smush_outnvlist, | |
5283 | boolean_t allow_log) | |
5284 | { | |
5285 | zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; | |
5286 | ||
5287 | ASSERT3U(ioc, >=, ZFS_IOC_FIRST); | |
5288 | ASSERT3U(ioc, <, ZFS_IOC_LAST); | |
5289 | ASSERT3P(vec->zvec_legacy_func, ==, NULL); | |
5290 | ASSERT3P(vec->zvec_func, ==, NULL); | |
5291 | ||
5292 | /* if we are logging, the name must be valid */ | |
5293 | ASSERT(!allow_log || namecheck != NO_NAME); | |
5294 | ||
5295 | vec->zvec_name = name; | |
5296 | vec->zvec_func = func; | |
5297 | vec->zvec_secpolicy = secpolicy; | |
5298 | vec->zvec_namecheck = namecheck; | |
5299 | vec->zvec_pool_check = pool_check; | |
5300 | vec->zvec_smush_outnvlist = smush_outnvlist; | |
5301 | vec->zvec_allow_log = allow_log; | |
5302 | } | |
5303 | ||
5304 | static void | |
5305 | zfs_ioctl_register_pool(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5306 | zfs_secpolicy_func_t *secpolicy, boolean_t log_history, | |
5307 | zfs_ioc_poolcheck_t pool_check) | |
5308 | { | |
5309 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5310 | POOL_NAME, log_history, pool_check); | |
5311 | } | |
5312 | ||
5313 | static void | |
5314 | zfs_ioctl_register_dataset_nolog(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5315 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_poolcheck_t pool_check) | |
5316 | { | |
5317 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5318 | DATASET_NAME, B_FALSE, pool_check); | |
5319 | } | |
5320 | ||
5321 | static void | |
5322 | zfs_ioctl_register_pool_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) | |
5323 | { | |
5324 | zfs_ioctl_register_legacy(ioc, func, zfs_secpolicy_config, | |
5325 | POOL_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5326 | } | |
5327 | ||
5328 | static void | |
5329 | zfs_ioctl_register_pool_meta(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5330 | zfs_secpolicy_func_t *secpolicy) | |
5331 | { | |
5332 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5333 | NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
5334 | } | |
5335 | ||
5336 | static void | |
5337 | zfs_ioctl_register_dataset_read_secpolicy(zfs_ioc_t ioc, | |
5338 | zfs_ioc_legacy_func_t *func, zfs_secpolicy_func_t *secpolicy) | |
5339 | { | |
5340 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5341 | DATASET_NAME, B_FALSE, POOL_CHECK_SUSPENDED); | |
5342 | } | |
5343 | ||
5344 | static void | |
5345 | zfs_ioctl_register_dataset_read(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) | |
5346 | { | |
5347 | zfs_ioctl_register_dataset_read_secpolicy(ioc, func, | |
5348 | zfs_secpolicy_read); | |
5349 | } | |
5350 | ||
5351 | static void | |
5352 | zfs_ioctl_register_dataset_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5353 | zfs_secpolicy_func_t *secpolicy) | |
5354 | { | |
5355 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5356 | DATASET_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5357 | } | |
5358 | ||
5359 | static void | |
5360 | zfs_ioctl_init(void) | |
5361 | { | |
5362 | zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT, | |
5363 | zfs_ioc_snapshot, zfs_secpolicy_snapshot, POOL_NAME, | |
5364 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5365 | ||
5366 | zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY, | |
5367 | zfs_ioc_log_history, zfs_secpolicy_log_history, NO_NAME, | |
5368 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE); | |
5369 | ||
5370 | zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS, | |
5371 | zfs_ioc_space_snaps, zfs_secpolicy_read, DATASET_NAME, | |
5372 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5373 | ||
5374 | zfs_ioctl_register("send", ZFS_IOC_SEND_NEW, | |
5375 | zfs_ioc_send_new, zfs_secpolicy_send_new, DATASET_NAME, | |
5376 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5377 | ||
5378 | zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE, | |
5379 | zfs_ioc_send_space, zfs_secpolicy_read, DATASET_NAME, | |
5380 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5381 | ||
5382 | zfs_ioctl_register("create", ZFS_IOC_CREATE, | |
5383 | zfs_ioc_create, zfs_secpolicy_create_clone, DATASET_NAME, | |
5384 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5385 | ||
5386 | zfs_ioctl_register("clone", ZFS_IOC_CLONE, | |
5387 | zfs_ioc_clone, zfs_secpolicy_create_clone, DATASET_NAME, | |
5388 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5389 | ||
5390 | zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS, | |
5391 | zfs_ioc_destroy_snaps, zfs_secpolicy_destroy_snaps, POOL_NAME, | |
5392 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5393 | ||
13fe0198 MA |
5394 | zfs_ioctl_register("hold", ZFS_IOC_HOLD, |
5395 | zfs_ioc_hold, zfs_secpolicy_hold, POOL_NAME, | |
5396 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5397 | zfs_ioctl_register("release", ZFS_IOC_RELEASE, | |
5398 | zfs_ioc_release, zfs_secpolicy_release, POOL_NAME, | |
5399 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5400 | ||
5401 | zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS, | |
5402 | zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME, | |
5403 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5404 | ||
46ba1e59 MA |
5405 | zfs_ioctl_register("rollback", ZFS_IOC_ROLLBACK, |
5406 | zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME, | |
5407 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_TRUE); | |
5408 | ||
da536844 MA |
5409 | zfs_ioctl_register("bookmark", ZFS_IOC_BOOKMARK, |
5410 | zfs_ioc_bookmark, zfs_secpolicy_bookmark, POOL_NAME, | |
5411 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5412 | ||
5413 | zfs_ioctl_register("get_bookmarks", ZFS_IOC_GET_BOOKMARKS, | |
5414 | zfs_ioc_get_bookmarks, zfs_secpolicy_read, DATASET_NAME, | |
5415 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5416 | ||
5417 | zfs_ioctl_register("destroy_bookmarks", ZFS_IOC_DESTROY_BOOKMARKS, | |
5418 | zfs_ioc_destroy_bookmarks, zfs_secpolicy_destroy_bookmarks, | |
5419 | POOL_NAME, | |
5420 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5421 | ||
6f1ffb06 MA |
5422 | /* IOCTLS that use the legacy function signature */ |
5423 | ||
5424 | zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE, zfs_ioc_pool_freeze, | |
5425 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_READONLY); | |
5426 | ||
5427 | zfs_ioctl_register_pool(ZFS_IOC_POOL_CREATE, zfs_ioc_pool_create, | |
5428 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); | |
5429 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SCAN, | |
5430 | zfs_ioc_pool_scan); | |
5431 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_UPGRADE, | |
5432 | zfs_ioc_pool_upgrade); | |
5433 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ADD, | |
5434 | zfs_ioc_vdev_add); | |
5435 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_REMOVE, | |
5436 | zfs_ioc_vdev_remove); | |
5437 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SET_STATE, | |
5438 | zfs_ioc_vdev_set_state); | |
5439 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ATTACH, | |
5440 | zfs_ioc_vdev_attach); | |
5441 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_DETACH, | |
5442 | zfs_ioc_vdev_detach); | |
5443 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETPATH, | |
5444 | zfs_ioc_vdev_setpath); | |
5445 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETFRU, | |
5446 | zfs_ioc_vdev_setfru); | |
5447 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SET_PROPS, | |
5448 | zfs_ioc_pool_set_props); | |
5449 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SPLIT, | |
5450 | zfs_ioc_vdev_split); | |
5451 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_REGUID, | |
5452 | zfs_ioc_pool_reguid); | |
5453 | ||
5454 | zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_CONFIGS, | |
5455 | zfs_ioc_pool_configs, zfs_secpolicy_none); | |
5456 | zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_TRYIMPORT, | |
5457 | zfs_ioc_pool_tryimport, zfs_secpolicy_config); | |
5458 | zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_FAULT, | |
5459 | zfs_ioc_inject_fault, zfs_secpolicy_inject); | |
5460 | zfs_ioctl_register_pool_meta(ZFS_IOC_CLEAR_FAULT, | |
5461 | zfs_ioc_clear_fault, zfs_secpolicy_inject); | |
5462 | zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_LIST_NEXT, | |
5463 | zfs_ioc_inject_list_next, zfs_secpolicy_inject); | |
5464 | ||
5465 | /* | |
5466 | * pool destroy, and export don't log the history as part of | |
5467 | * zfsdev_ioctl, but rather zfs_ioc_pool_export | |
5468 | * does the logging of those commands. | |
5469 | */ | |
5470 | zfs_ioctl_register_pool(ZFS_IOC_POOL_DESTROY, zfs_ioc_pool_destroy, | |
87a63dd7 | 5471 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED); |
6f1ffb06 | 5472 | zfs_ioctl_register_pool(ZFS_IOC_POOL_EXPORT, zfs_ioc_pool_export, |
87a63dd7 | 5473 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED); |
6f1ffb06 MA |
5474 | |
5475 | zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS, zfs_ioc_pool_stats, | |
5476 | zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); | |
5477 | zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS, zfs_ioc_pool_get_props, | |
5478 | zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); | |
5479 | ||
5480 | zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG, zfs_ioc_error_log, | |
5481 | zfs_secpolicy_inject, B_FALSE, POOL_CHECK_SUSPENDED); | |
5482 | zfs_ioctl_register_pool(ZFS_IOC_DSOBJ_TO_DSNAME, | |
5483 | zfs_ioc_dsobj_to_dsname, | |
5484 | zfs_secpolicy_diff, B_FALSE, POOL_CHECK_SUSPENDED); | |
5485 | zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_HISTORY, | |
5486 | zfs_ioc_pool_get_history, | |
5487 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED); | |
5488 | ||
5489 | zfs_ioctl_register_pool(ZFS_IOC_POOL_IMPORT, zfs_ioc_pool_import, | |
5490 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); | |
5491 | ||
5492 | zfs_ioctl_register_pool(ZFS_IOC_CLEAR, zfs_ioc_clear, | |
ac72fac3 | 5493 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); |
6f1ffb06 MA |
5494 | zfs_ioctl_register_pool(ZFS_IOC_POOL_REOPEN, zfs_ioc_pool_reopen, |
5495 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_SUSPENDED); | |
5496 | ||
5497 | zfs_ioctl_register_dataset_read(ZFS_IOC_SPACE_WRITTEN, | |
5498 | zfs_ioc_space_written); | |
6f1ffb06 MA |
5499 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_RECVD_PROPS, |
5500 | zfs_ioc_objset_recvd_props); | |
5501 | zfs_ioctl_register_dataset_read(ZFS_IOC_NEXT_OBJ, | |
5502 | zfs_ioc_next_obj); | |
5503 | zfs_ioctl_register_dataset_read(ZFS_IOC_GET_FSACL, | |
5504 | zfs_ioc_get_fsacl); | |
5505 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_STATS, | |
5506 | zfs_ioc_objset_stats); | |
5507 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_ZPLPROPS, | |
5508 | zfs_ioc_objset_zplprops); | |
5509 | zfs_ioctl_register_dataset_read(ZFS_IOC_DATASET_LIST_NEXT, | |
5510 | zfs_ioc_dataset_list_next); | |
5511 | zfs_ioctl_register_dataset_read(ZFS_IOC_SNAPSHOT_LIST_NEXT, | |
5512 | zfs_ioc_snapshot_list_next); | |
5513 | zfs_ioctl_register_dataset_read(ZFS_IOC_SEND_PROGRESS, | |
5514 | zfs_ioc_send_progress); | |
5515 | ||
5516 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_DIFF, | |
5517 | zfs_ioc_diff, zfs_secpolicy_diff); | |
5518 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_STATS, | |
5519 | zfs_ioc_obj_to_stats, zfs_secpolicy_diff); | |
5520 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_PATH, | |
5521 | zfs_ioc_obj_to_path, zfs_secpolicy_diff); | |
5522 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_ONE, | |
5523 | zfs_ioc_userspace_one, zfs_secpolicy_userspace_one); | |
5524 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_MANY, | |
5525 | zfs_ioc_userspace_many, zfs_secpolicy_userspace_many); | |
5526 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_SEND, | |
5527 | zfs_ioc_send, zfs_secpolicy_send); | |
5528 | ||
5529 | zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_PROP, zfs_ioc_set_prop, | |
5530 | zfs_secpolicy_none); | |
5531 | zfs_ioctl_register_dataset_modify(ZFS_IOC_DESTROY, zfs_ioc_destroy, | |
5532 | zfs_secpolicy_destroy); | |
6f1ffb06 MA |
5533 | zfs_ioctl_register_dataset_modify(ZFS_IOC_RENAME, zfs_ioc_rename, |
5534 | zfs_secpolicy_rename); | |
5535 | zfs_ioctl_register_dataset_modify(ZFS_IOC_RECV, zfs_ioc_recv, | |
5536 | zfs_secpolicy_recv); | |
5537 | zfs_ioctl_register_dataset_modify(ZFS_IOC_PROMOTE, zfs_ioc_promote, | |
5538 | zfs_secpolicy_promote); | |
6f1ffb06 MA |
5539 | zfs_ioctl_register_dataset_modify(ZFS_IOC_INHERIT_PROP, |
5540 | zfs_ioc_inherit_prop, zfs_secpolicy_inherit_prop); | |
5541 | zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_FSACL, zfs_ioc_set_fsacl, | |
5542 | zfs_secpolicy_set_fsacl); | |
5543 | ||
5544 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_SHARE, zfs_ioc_share, | |
5545 | zfs_secpolicy_share, POOL_CHECK_NONE); | |
5546 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_SMB_ACL, zfs_ioc_smb_acl, | |
5547 | zfs_secpolicy_smb_acl, POOL_CHECK_NONE); | |
5548 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_USERSPACE_UPGRADE, | |
5549 | zfs_ioc_userspace_upgrade, zfs_secpolicy_userspace_upgrade, | |
5550 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5551 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_TMP_SNAPSHOT, | |
5552 | zfs_ioc_tmp_snapshot, zfs_secpolicy_tmp_snapshot, | |
5553 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5554 | ||
5555 | /* | |
ba6a2402 | 5556 | * ZoL functions |
6f1ffb06 | 5557 | */ |
6f1ffb06 MA |
5558 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_NEXT, zfs_ioc_events_next, |
5559 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
5560 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_CLEAR, zfs_ioc_events_clear, | |
5561 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
75e3ff58 BB |
5562 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_SEEK, zfs_ioc_events_seek, |
5563 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
6f1ffb06 | 5564 | } |
34dc7c2f | 5565 | |
9babb374 | 5566 | int |
572e2857 BB |
5567 | pool_status_check(const char *name, zfs_ioc_namecheck_t type, |
5568 | zfs_ioc_poolcheck_t check) | |
9babb374 BB |
5569 | { |
5570 | spa_t *spa; | |
5571 | int error; | |
5572 | ||
5573 | ASSERT(type == POOL_NAME || type == DATASET_NAME); | |
5574 | ||
572e2857 BB |
5575 | if (check & POOL_CHECK_NONE) |
5576 | return (0); | |
5577 | ||
9babb374 BB |
5578 | error = spa_open(name, &spa, FTAG); |
5579 | if (error == 0) { | |
572e2857 | 5580 | if ((check & POOL_CHECK_SUSPENDED) && spa_suspended(spa)) |
2e528b49 | 5581 | error = SET_ERROR(EAGAIN); |
572e2857 | 5582 | else if ((check & POOL_CHECK_READONLY) && !spa_writeable(spa)) |
2e528b49 | 5583 | error = SET_ERROR(EROFS); |
9babb374 BB |
5584 | spa_close(spa, FTAG); |
5585 | } | |
5586 | return (error); | |
5587 | } | |
5588 | ||
325f0235 BB |
5589 | static void * |
5590 | zfsdev_get_state_impl(minor_t minor, enum zfsdev_state_type which) | |
5591 | { | |
5592 | zfsdev_state_t *zs; | |
5593 | ||
3937ab20 | 5594 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { |
325f0235 | 5595 | if (zs->zs_minor == minor) { |
3937ab20 | 5596 | smp_rmb(); |
325f0235 | 5597 | switch (which) { |
d1d7e268 MK |
5598 | case ZST_ONEXIT: |
5599 | return (zs->zs_onexit); | |
5600 | case ZST_ZEVENT: | |
5601 | return (zs->zs_zevent); | |
5602 | case ZST_ALL: | |
5603 | return (zs); | |
325f0235 BB |
5604 | } |
5605 | } | |
5606 | } | |
5607 | ||
d1d7e268 | 5608 | return (NULL); |
325f0235 BB |
5609 | } |
5610 | ||
5611 | void * | |
5612 | zfsdev_get_state(minor_t minor, enum zfsdev_state_type which) | |
5613 | { | |
5614 | void *ptr; | |
5615 | ||
325f0235 | 5616 | ptr = zfsdev_get_state_impl(minor, which); |
325f0235 | 5617 | |
d1d7e268 | 5618 | return (ptr); |
325f0235 BB |
5619 | } |
5620 | ||
5621 | minor_t | |
5622 | zfsdev_getminor(struct file *filp) | |
5623 | { | |
5624 | ASSERT(filp != NULL); | |
5625 | ASSERT(filp->private_data != NULL); | |
5626 | ||
5627 | return (((zfsdev_state_t *)filp->private_data)->zs_minor); | |
5628 | } | |
5629 | ||
572e2857 | 5630 | /* |
325f0235 BB |
5631 | * Find a free minor number. The zfsdev_state_list is expected to |
5632 | * be short since it is only a list of currently open file handles. | |
572e2857 BB |
5633 | */ |
5634 | minor_t | |
5635 | zfsdev_minor_alloc(void) | |
5636 | { | |
325f0235 | 5637 | static minor_t last_minor = 0; |
572e2857 BB |
5638 | minor_t m; |
5639 | ||
5640 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
5641 | ||
5642 | for (m = last_minor + 1; m != last_minor; m++) { | |
5643 | if (m > ZFSDEV_MAX_MINOR) | |
5644 | m = 1; | |
325f0235 | 5645 | if (zfsdev_get_state_impl(m, ZST_ALL) == NULL) { |
572e2857 BB |
5646 | last_minor = m; |
5647 | return (m); | |
5648 | } | |
5649 | } | |
5650 | ||
5651 | return (0); | |
5652 | } | |
5653 | ||
5654 | static int | |
325f0235 | 5655 | zfsdev_state_init(struct file *filp) |
572e2857 | 5656 | { |
3937ab20 | 5657 | zfsdev_state_t *zs, *zsprev = NULL; |
572e2857 | 5658 | minor_t minor; |
3937ab20 | 5659 | boolean_t newzs = B_FALSE; |
572e2857 BB |
5660 | |
5661 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
572e2857 | 5662 | |
d1d7e268 MK |
5663 | minor = zfsdev_minor_alloc(); |
5664 | if (minor == 0) | |
5665 | return (SET_ERROR(ENXIO)); | |
325f0235 | 5666 | |
3937ab20 TC |
5667 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { |
5668 | if (zs->zs_minor == -1) | |
5669 | break; | |
5670 | zsprev = zs; | |
5671 | } | |
5672 | ||
5673 | if (!zs) { | |
5674 | zs = kmem_zalloc(sizeof (zfsdev_state_t), KM_SLEEP); | |
5675 | newzs = B_TRUE; | |
5676 | } | |
572e2857 | 5677 | |
325f0235 | 5678 | zs->zs_file = filp; |
325f0235 | 5679 | filp->private_data = zs; |
572e2857 | 5680 | |
325f0235 BB |
5681 | zfs_onexit_init((zfs_onexit_t **)&zs->zs_onexit); |
5682 | zfs_zevent_init((zfs_zevent_t **)&zs->zs_zevent); | |
572e2857 | 5683 | |
3937ab20 TC |
5684 | |
5685 | /* | |
5686 | * In order to provide for lock-free concurrent read access | |
5687 | * to the minor list in zfsdev_get_state_impl(), new entries | |
5688 | * must be completely written before linking them into the | |
5689 | * list whereas existing entries are already linked; the last | |
5690 | * operation must be updating zs_minor (from -1 to the new | |
5691 | * value). | |
5692 | */ | |
5693 | if (newzs) { | |
5694 | zs->zs_minor = minor; | |
5695 | smp_wmb(); | |
5696 | zsprev->zs_next = zs; | |
5697 | } else { | |
5698 | smp_wmb(); | |
5699 | zs->zs_minor = minor; | |
5700 | } | |
572e2857 BB |
5701 | |
5702 | return (0); | |
5703 | } | |
5704 | ||
325f0235 BB |
5705 | static int |
5706 | zfsdev_state_destroy(struct file *filp) | |
572e2857 | 5707 | { |
325f0235 | 5708 | zfsdev_state_t *zs; |
572e2857 | 5709 | |
325f0235 BB |
5710 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); |
5711 | ASSERT(filp->private_data != NULL); | |
572e2857 | 5712 | |
325f0235 | 5713 | zs = filp->private_data; |
3937ab20 | 5714 | zs->zs_minor = -1; |
325f0235 BB |
5715 | zfs_onexit_destroy(zs->zs_onexit); |
5716 | zfs_zevent_destroy(zs->zs_zevent); | |
572e2857 | 5717 | |
d1d7e268 | 5718 | return (0); |
572e2857 BB |
5719 | } |
5720 | ||
5721 | static int | |
325f0235 | 5722 | zfsdev_open(struct inode *ino, struct file *filp) |
572e2857 | 5723 | { |
325f0235 | 5724 | int error; |
572e2857 | 5725 | |
325f0235 BB |
5726 | mutex_enter(&zfsdev_state_lock); |
5727 | error = zfsdev_state_init(filp); | |
5728 | mutex_exit(&zfsdev_state_lock); | |
572e2857 | 5729 | |
325f0235 | 5730 | return (-error); |
572e2857 BB |
5731 | } |
5732 | ||
5733 | static int | |
325f0235 | 5734 | zfsdev_release(struct inode *ino, struct file *filp) |
572e2857 | 5735 | { |
325f0235 | 5736 | int error; |
572e2857 BB |
5737 | |
5738 | mutex_enter(&zfsdev_state_lock); | |
325f0235 | 5739 | error = zfsdev_state_destroy(filp); |
572e2857 BB |
5740 | mutex_exit(&zfsdev_state_lock); |
5741 | ||
325f0235 | 5742 | return (-error); |
572e2857 BB |
5743 | } |
5744 | ||
325f0235 BB |
5745 | static long |
5746 | zfsdev_ioctl(struct file *filp, unsigned cmd, unsigned long arg) | |
34dc7c2f BB |
5747 | { |
5748 | zfs_cmd_t *zc; | |
6f1ffb06 | 5749 | uint_t vecnum; |
4fd762f8 | 5750 | int error, rc, flag = 0; |
6f1ffb06 | 5751 | const zfs_ioc_vec_t *vec; |
fb8e608d | 5752 | char *saved_poolname = NULL; |
6f1ffb06 | 5753 | nvlist_t *innvl = NULL; |
40d06e3c | 5754 | fstrans_cookie_t cookie; |
6f1ffb06 MA |
5755 | |
5756 | vecnum = cmd - ZFS_IOC_FIRST; | |
5757 | if (vecnum >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0])) | |
2e528b49 | 5758 | return (-SET_ERROR(EINVAL)); |
6f1ffb06 | 5759 | vec = &zfs_ioc_vec[vecnum]; |
34dc7c2f | 5760 | |
2e0358cb BB |
5761 | /* |
5762 | * The registered ioctl list may be sparse, verify that either | |
5763 | * a normal or legacy handler are registered. | |
5764 | */ | |
5765 | if (vec->zvec_func == NULL && vec->zvec_legacy_func == NULL) | |
5766 | return (-SET_ERROR(EINVAL)); | |
5767 | ||
efcd79a8 | 5768 | zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); |
34dc7c2f | 5769 | |
9babb374 | 5770 | error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag); |
6f1ffb06 | 5771 | if (error != 0) { |
2e528b49 | 5772 | error = SET_ERROR(EFAULT); |
6f1ffb06 MA |
5773 | goto out; |
5774 | } | |
34dc7c2f | 5775 | |
6f1ffb06 MA |
5776 | zc->zc_iflags = flag & FKIOCTL; |
5777 | if (zc->zc_nvlist_src_size != 0) { | |
5778 | error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
5779 | zc->zc_iflags, &innvl); | |
5780 | if (error != 0) | |
5781 | goto out; | |
5782 | } | |
34dc7c2f BB |
5783 | |
5784 | /* | |
5785 | * Ensure that all pool/dataset names are valid before we pass down to | |
5786 | * the lower layers. | |
5787 | */ | |
6f1ffb06 MA |
5788 | zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; |
5789 | switch (vec->zvec_namecheck) { | |
5790 | case POOL_NAME: | |
5791 | if (pool_namecheck(zc->zc_name, NULL, NULL) != 0) | |
2e528b49 | 5792 | error = SET_ERROR(EINVAL); |
6f1ffb06 | 5793 | else |
572e2857 | 5794 | error = pool_status_check(zc->zc_name, |
6f1ffb06 MA |
5795 | vec->zvec_namecheck, vec->zvec_pool_check); |
5796 | break; | |
34dc7c2f | 5797 | |
6f1ffb06 MA |
5798 | case DATASET_NAME: |
5799 | if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0) | |
2e528b49 | 5800 | error = SET_ERROR(EINVAL); |
6f1ffb06 | 5801 | else |
572e2857 | 5802 | error = pool_status_check(zc->zc_name, |
6f1ffb06 MA |
5803 | vec->zvec_namecheck, vec->zvec_pool_check); |
5804 | break; | |
34dc7c2f | 5805 | |
6f1ffb06 MA |
5806 | case NO_NAME: |
5807 | break; | |
34dc7c2f BB |
5808 | } |
5809 | ||
34dc7c2f | 5810 | |
6f1ffb06 MA |
5811 | if (error == 0 && !(flag & FKIOCTL)) |
5812 | error = vec->zvec_secpolicy(zc, innvl, CRED()); | |
5813 | ||
5814 | if (error != 0) | |
5815 | goto out; | |
5816 | ||
5817 | /* legacy ioctls can modify zc_name */ | |
4fd762f8 BB |
5818 | saved_poolname = strdup(zc->zc_name); |
5819 | if (saved_poolname == NULL) { | |
5820 | error = SET_ERROR(ENOMEM); | |
5821 | goto out; | |
5822 | } else { | |
5823 | saved_poolname[strcspn(saved_poolname, "/@#")] = '\0'; | |
5824 | } | |
6f1ffb06 MA |
5825 | |
5826 | if (vec->zvec_func != NULL) { | |
5827 | nvlist_t *outnvl; | |
5828 | int puterror = 0; | |
5829 | spa_t *spa; | |
5830 | nvlist_t *lognv = NULL; | |
5831 | ||
5832 | ASSERT(vec->zvec_legacy_func == NULL); | |
5833 | ||
5834 | /* | |
5835 | * Add the innvl to the lognv before calling the func, | |
5836 | * in case the func changes the innvl. | |
5837 | */ | |
5838 | if (vec->zvec_allow_log) { | |
5839 | lognv = fnvlist_alloc(); | |
5840 | fnvlist_add_string(lognv, ZPOOL_HIST_IOCTL, | |
5841 | vec->zvec_name); | |
5842 | if (!nvlist_empty(innvl)) { | |
5843 | fnvlist_add_nvlist(lognv, ZPOOL_HIST_INPUT_NVL, | |
5844 | innvl); | |
5845 | } | |
5846 | } | |
5847 | ||
79c76d5b | 5848 | outnvl = fnvlist_alloc(); |
40d06e3c | 5849 | cookie = spl_fstrans_mark(); |
6f1ffb06 | 5850 | error = vec->zvec_func(zc->zc_name, innvl, outnvl); |
40d06e3c | 5851 | spl_fstrans_unmark(cookie); |
6f1ffb06 MA |
5852 | |
5853 | if (error == 0 && vec->zvec_allow_log && | |
5854 | spa_open(zc->zc_name, &spa, FTAG) == 0) { | |
5855 | if (!nvlist_empty(outnvl)) { | |
5856 | fnvlist_add_nvlist(lognv, ZPOOL_HIST_OUTPUT_NVL, | |
5857 | outnvl); | |
5858 | } | |
5859 | (void) spa_history_log_nvl(spa, lognv); | |
5860 | spa_close(spa, FTAG); | |
5861 | } | |
5862 | fnvlist_free(lognv); | |
5863 | ||
5864 | if (!nvlist_empty(outnvl) || zc->zc_nvlist_dst_size != 0) { | |
5865 | int smusherror = 0; | |
5866 | if (vec->zvec_smush_outnvlist) { | |
5867 | smusherror = nvlist_smush(outnvl, | |
5868 | zc->zc_nvlist_dst_size); | |
5869 | } | |
5870 | if (smusherror == 0) | |
5871 | puterror = put_nvlist(zc, outnvl); | |
5872 | } | |
5873 | ||
5874 | if (puterror != 0) | |
5875 | error = puterror; | |
5876 | ||
5877 | nvlist_free(outnvl); | |
5878 | } else { | |
40d06e3c | 5879 | cookie = spl_fstrans_mark(); |
6f1ffb06 | 5880 | error = vec->zvec_legacy_func(zc); |
40d06e3c | 5881 | spl_fstrans_unmark(cookie); |
6f1ffb06 MA |
5882 | } |
5883 | ||
5884 | out: | |
5885 | nvlist_free(innvl); | |
9babb374 | 5886 | rc = ddi_copyout(zc, (void *)arg, sizeof (zfs_cmd_t), flag); |
6f1ffb06 | 5887 | if (error == 0 && rc != 0) |
2e528b49 | 5888 | error = SET_ERROR(EFAULT); |
6f1ffb06 MA |
5889 | if (error == 0 && vec->zvec_allow_log) { |
5890 | char *s = tsd_get(zfs_allow_log_key); | |
5891 | if (s != NULL) | |
5892 | strfree(s); | |
fb8e608d TC |
5893 | (void) tsd_set(zfs_allow_log_key, saved_poolname); |
5894 | } else { | |
5895 | if (saved_poolname != NULL) | |
4fd762f8 | 5896 | strfree(saved_poolname); |
34dc7c2f BB |
5897 | } |
5898 | ||
5899 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
325f0235 | 5900 | return (-error); |
34dc7c2f BB |
5901 | } |
5902 | ||
325f0235 BB |
5903 | #ifdef CONFIG_COMPAT |
5904 | static long | |
5905 | zfsdev_compat_ioctl(struct file *filp, unsigned cmd, unsigned long arg) | |
34dc7c2f | 5906 | { |
d1d7e268 | 5907 | return (zfsdev_ioctl(filp, cmd, arg)); |
325f0235 BB |
5908 | } |
5909 | #else | |
d1d7e268 | 5910 | #define zfsdev_compat_ioctl NULL |
325f0235 | 5911 | #endif |
34dc7c2f | 5912 | |
325f0235 | 5913 | static const struct file_operations zfsdev_fops = { |
d1d7e268 MK |
5914 | .open = zfsdev_open, |
5915 | .release = zfsdev_release, | |
5916 | .unlocked_ioctl = zfsdev_ioctl, | |
5917 | .compat_ioctl = zfsdev_compat_ioctl, | |
5918 | .owner = THIS_MODULE, | |
325f0235 | 5919 | }; |
34dc7c2f | 5920 | |
325f0235 | 5921 | static struct miscdevice zfs_misc = { |
d1d7e268 MK |
5922 | .minor = MISC_DYNAMIC_MINOR, |
5923 | .name = ZFS_DRIVER, | |
5924 | .fops = &zfsdev_fops, | |
325f0235 | 5925 | }; |
34dc7c2f BB |
5926 | |
5927 | static int | |
325f0235 | 5928 | zfs_attach(void) |
34dc7c2f | 5929 | { |
325f0235 | 5930 | int error; |
34dc7c2f | 5931 | |
325f0235 | 5932 | mutex_init(&zfsdev_state_lock, NULL, MUTEX_DEFAULT, NULL); |
3937ab20 TC |
5933 | zfsdev_state_list = kmem_zalloc(sizeof (zfsdev_state_t), KM_SLEEP); |
5934 | zfsdev_state_list->zs_minor = -1; | |
34dc7c2f | 5935 | |
325f0235 | 5936 | error = misc_register(&zfs_misc); |
d1d7e268 | 5937 | if (error != 0) { |
325f0235 BB |
5938 | printk(KERN_INFO "ZFS: misc_register() failed %d\n", error); |
5939 | return (error); | |
5940 | } | |
34dc7c2f | 5941 | |
325f0235 | 5942 | return (0); |
34dc7c2f BB |
5943 | } |
5944 | ||
325f0235 BB |
5945 | static void |
5946 | zfs_detach(void) | |
34dc7c2f | 5947 | { |
325f0235 | 5948 | int error; |
3937ab20 | 5949 | zfsdev_state_t *zs, *zsprev = NULL; |
34dc7c2f | 5950 | |
325f0235 | 5951 | error = misc_deregister(&zfs_misc); |
13fe0198 | 5952 | if (error != 0) |
325f0235 | 5953 | printk(KERN_INFO "ZFS: misc_deregister() failed %d\n", error); |
34dc7c2f | 5954 | |
325f0235 | 5955 | mutex_destroy(&zfsdev_state_lock); |
3937ab20 TC |
5956 | |
5957 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { | |
5958 | if (zsprev) | |
5959 | kmem_free(zsprev, sizeof (zfsdev_state_t)); | |
5960 | zsprev = zs; | |
5961 | } | |
5962 | if (zsprev) | |
5963 | kmem_free(zsprev, sizeof (zfsdev_state_t)); | |
34dc7c2f BB |
5964 | } |
5965 | ||
6f1ffb06 MA |
5966 | static void |
5967 | zfs_allow_log_destroy(void *arg) | |
5968 | { | |
5969 | char *poolname = arg; | |
5970 | strfree(poolname); | |
5971 | } | |
325f0235 BB |
5972 | |
5973 | #ifdef DEBUG | |
d1d7e268 | 5974 | #define ZFS_DEBUG_STR " (DEBUG mode)" |
325f0235 | 5975 | #else |
d1d7e268 | 5976 | #define ZFS_DEBUG_STR "" |
325f0235 | 5977 | #endif |
34dc7c2f | 5978 | |
b4f3666a | 5979 | static int __init |
34dc7c2f BB |
5980 | _init(void) |
5981 | { | |
5982 | int error; | |
5983 | ||
b4f3666a BB |
5984 | error = vn_set_pwd("/"); |
5985 | if (error) { | |
5986 | printk(KERN_NOTICE | |
5987 | "ZFS: Warning unable to set pwd to '/': %d\n", error); | |
5988 | return (error); | |
5989 | } | |
5990 | ||
34dc7c2f BB |
5991 | spa_init(FREAD | FWRITE); |
5992 | zfs_init(); | |
34dc7c2f | 5993 | |
325f0235 BB |
5994 | if ((error = zvol_init()) != 0) |
5995 | goto out1; | |
5996 | ||
6f1ffb06 MA |
5997 | zfs_ioctl_init(); |
5998 | ||
325f0235 BB |
5999 | if ((error = zfs_attach()) != 0) |
6000 | goto out2; | |
34dc7c2f | 6001 | |
d5446cfc | 6002 | tsd_create(&zfs_fsyncer_key, NULL); |
6f1ffb06 MA |
6003 | tsd_create(&rrw_tsd_key, rrw_tsd_destroy); |
6004 | tsd_create(&zfs_allow_log_key, zfs_allow_log_destroy); | |
34dc7c2f | 6005 | |
4b5d425f | 6006 | printk(KERN_NOTICE "ZFS: Loaded module v%s-%s%s, " |
d1d7e268 MK |
6007 | "ZFS pool version %s, ZFS filesystem version %s\n", |
6008 | ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR, | |
6009 | SPA_VERSION_STRING, ZPL_VERSION_STRING); | |
b695c34e MM |
6010 | #ifndef CONFIG_FS_POSIX_ACL |
6011 | printk(KERN_NOTICE "ZFS: Posix ACLs disabled by kernel\n"); | |
6012 | #endif /* CONFIG_FS_POSIX_ACL */ | |
34dc7c2f BB |
6013 | |
6014 | return (0); | |
325f0235 BB |
6015 | |
6016 | out2: | |
6017 | (void) zvol_fini(); | |
6018 | out1: | |
6019 | zfs_fini(); | |
6020 | spa_fini(); | |
4b5d425f | 6021 | printk(KERN_NOTICE "ZFS: Failed to Load ZFS Filesystem v%s-%s%s" |
d1d7e268 MK |
6022 | ", rc = %d\n", ZFS_META_VERSION, ZFS_META_RELEASE, |
6023 | ZFS_DEBUG_STR, error); | |
325f0235 BB |
6024 | |
6025 | return (error); | |
34dc7c2f BB |
6026 | } |
6027 | ||
b4f3666a | 6028 | static void __exit |
34dc7c2f BB |
6029 | _fini(void) |
6030 | { | |
325f0235 | 6031 | zfs_detach(); |
34dc7c2f BB |
6032 | zvol_fini(); |
6033 | zfs_fini(); | |
6034 | spa_fini(); | |
46e18b3f | 6035 | |
d5446cfc | 6036 | tsd_destroy(&zfs_fsyncer_key); |
3fc050aa | 6037 | tsd_destroy(&rrw_tsd_key); |
6f1ffb06 | 6038 | tsd_destroy(&zfs_allow_log_key); |
34dc7c2f | 6039 | |
4b5d425f | 6040 | printk(KERN_NOTICE "ZFS: Unloaded module v%s-%s%s\n", |
d1d7e268 | 6041 | ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR); |
34dc7c2f | 6042 | } |
325f0235 BB |
6043 | |
6044 | #ifdef HAVE_SPL | |
b4f3666a BB |
6045 | module_init(_init); |
6046 | module_exit(_fini); | |
325f0235 BB |
6047 | |
6048 | MODULE_DESCRIPTION("ZFS"); | |
6049 | MODULE_AUTHOR(ZFS_META_AUTHOR); | |
6050 | MODULE_LICENSE(ZFS_META_LICENSE); | |
99e349db | 6051 | MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE); |
325f0235 | 6052 | #endif /* HAVE_SPL */ |