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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. |
37abac6d | 28 | * Copyright (c) 2012, Joyent, Inc. All rights reserved. |
2e528b49 | 29 | * Copyright (c) 201i3 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> |
aaed7c40 | 189 | #include <linux/module_compat.h> |
34dc7c2f BB |
190 | |
191 | #include "zfs_namecheck.h" | |
192 | #include "zfs_prop.h" | |
193 | #include "zfs_deleg.h" | |
428870ff | 194 | #include "zfs_comutil.h" |
34dc7c2f | 195 | |
325f0235 | 196 | kmutex_t zfsdev_state_lock; |
3937ab20 | 197 | zfsdev_state_t *zfsdev_state_list; |
34dc7c2f BB |
198 | |
199 | extern void zfs_init(void); | |
200 | extern void zfs_fini(void); | |
201 | ||
6f1ffb06 MA |
202 | uint_t zfs_fsyncer_key; |
203 | extern uint_t rrw_tsd_key; | |
204 | static uint_t zfs_allow_log_key; | |
205 | ||
206 | typedef int zfs_ioc_legacy_func_t(zfs_cmd_t *); | |
207 | typedef int zfs_ioc_func_t(const char *, nvlist_t *, nvlist_t *); | |
208 | typedef int zfs_secpolicy_func_t(zfs_cmd_t *, nvlist_t *, cred_t *); | |
34dc7c2f | 209 | |
9babb374 BB |
210 | typedef enum { |
211 | NO_NAME, | |
212 | POOL_NAME, | |
213 | DATASET_NAME | |
214 | } zfs_ioc_namecheck_t; | |
215 | ||
572e2857 BB |
216 | typedef enum { |
217 | POOL_CHECK_NONE = 1 << 0, | |
218 | POOL_CHECK_SUSPENDED = 1 << 1, | |
6f1ffb06 | 219 | POOL_CHECK_READONLY = 1 << 2, |
572e2857 BB |
220 | } zfs_ioc_poolcheck_t; |
221 | ||
34dc7c2f | 222 | typedef struct zfs_ioc_vec { |
6f1ffb06 | 223 | zfs_ioc_legacy_func_t *zvec_legacy_func; |
34dc7c2f BB |
224 | zfs_ioc_func_t *zvec_func; |
225 | zfs_secpolicy_func_t *zvec_secpolicy; | |
9babb374 | 226 | zfs_ioc_namecheck_t zvec_namecheck; |
6f1ffb06 | 227 | boolean_t zvec_allow_log; |
572e2857 | 228 | zfs_ioc_poolcheck_t zvec_pool_check; |
6f1ffb06 MA |
229 | boolean_t zvec_smush_outnvlist; |
230 | const char *zvec_name; | |
34dc7c2f BB |
231 | } zfs_ioc_vec_t; |
232 | ||
9babb374 BB |
233 | /* This array is indexed by zfs_userquota_prop_t */ |
234 | static const char *userquota_perms[] = { | |
235 | ZFS_DELEG_PERM_USERUSED, | |
236 | ZFS_DELEG_PERM_USERQUOTA, | |
237 | ZFS_DELEG_PERM_GROUPUSED, | |
238 | ZFS_DELEG_PERM_GROUPQUOTA, | |
239 | }; | |
240 | ||
241 | static int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc); | |
428870ff BB |
242 | static int zfs_check_settable(const char *name, nvpair_t *property, |
243 | cred_t *cr); | |
244 | static int zfs_check_clearable(char *dataset, nvlist_t *props, | |
245 | nvlist_t **errors); | |
b128c09f BB |
246 | static int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *, |
247 | boolean_t *); | |
6f1ffb06 MA |
248 | int zfs_set_prop_nvlist(const char *, zprop_source_t, nvlist_t *, nvlist_t *); |
249 | static int get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp); | |
b128c09f | 250 | |
0b39b9f9 PS |
251 | #if defined(HAVE_DECLARE_EVENT_CLASS) |
252 | void | |
253 | __dprintf(const char *file, const char *func, int line, const char *fmt, ...) | |
254 | { | |
255 | const char *newfile; | |
256 | size_t size = 4096; | |
79c76d5b | 257 | char *buf = kmem_alloc(size, KM_SLEEP); |
0b39b9f9 PS |
258 | char *nl; |
259 | va_list adx; | |
260 | ||
261 | /* | |
262 | * Get rid of annoying prefix to filename. | |
263 | */ | |
264 | newfile = strrchr(file, '/'); | |
265 | if (newfile != NULL) { | |
266 | newfile = newfile + 1; /* Get rid of leading / */ | |
267 | } else { | |
268 | newfile = file; | |
269 | } | |
270 | ||
271 | va_start(adx, fmt); | |
272 | (void) vsnprintf(buf, size, fmt, adx); | |
273 | va_end(adx); | |
274 | ||
275 | /* | |
276 | * Get rid of trailing newline. | |
277 | */ | |
278 | nl = strrchr(buf, '\n'); | |
279 | if (nl != NULL) | |
280 | *nl = '\0'; | |
281 | ||
282 | /* | |
283 | * To get this data enable the zfs__dprintf trace point as shown: | |
284 | * | |
285 | * # Enable zfs__dprintf tracepoint, clear the tracepoint ring buffer | |
286 | * $ echo 1 > /sys/module/zfs/parameters/zfs_flags | |
287 | * $ echo 1 > /sys/kernel/debug/tracing/events/zfs/enable | |
288 | * $ echo 0 > /sys/kernel/debug/tracing/trace | |
289 | * | |
290 | * # Dump the ring buffer. | |
291 | * $ cat /sys/kernel/debug/tracing/trace | |
292 | */ | |
293 | DTRACE_PROBE4(zfs__dprintf, | |
294 | char *, newfile, char *, func, int, line, char *, buf); | |
295 | ||
296 | kmem_free(buf, size); | |
297 | } | |
298 | #endif /* HAVE_DECLARE_EVENT_CLASS */ | |
299 | ||
34dc7c2f BB |
300 | static void |
301 | history_str_free(char *buf) | |
302 | { | |
303 | kmem_free(buf, HIS_MAX_RECORD_LEN); | |
304 | } | |
305 | ||
306 | static char * | |
307 | history_str_get(zfs_cmd_t *zc) | |
308 | { | |
309 | char *buf; | |
310 | ||
b8864a23 | 311 | if (zc->zc_history == 0) |
34dc7c2f BB |
312 | return (NULL); |
313 | ||
efcd79a8 | 314 | buf = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP); |
34dc7c2f BB |
315 | if (copyinstr((void *)(uintptr_t)zc->zc_history, |
316 | buf, HIS_MAX_RECORD_LEN, NULL) != 0) { | |
317 | history_str_free(buf); | |
318 | return (NULL); | |
319 | } | |
320 | ||
321 | buf[HIS_MAX_RECORD_LEN -1] = '\0'; | |
322 | ||
323 | return (buf); | |
324 | } | |
325 | ||
326 | /* | |
b128c09f BB |
327 | * Check to see if the named dataset is currently defined as bootable |
328 | */ | |
329 | static boolean_t | |
330 | zfs_is_bootfs(const char *name) | |
331 | { | |
428870ff | 332 | objset_t *os; |
b128c09f | 333 | |
428870ff BB |
334 | if (dmu_objset_hold(name, FTAG, &os) == 0) { |
335 | boolean_t ret; | |
336 | ret = (dmu_objset_id(os) == spa_bootfs(dmu_objset_spa(os))); | |
337 | dmu_objset_rele(os, FTAG); | |
338 | return (ret); | |
b128c09f | 339 | } |
428870ff | 340 | return (B_FALSE); |
b128c09f BB |
341 | } |
342 | ||
343 | /* | |
d3cc8b15 | 344 | * Return non-zero if the spa version is less than requested version. |
34dc7c2f BB |
345 | */ |
346 | static int | |
b128c09f | 347 | zfs_earlier_version(const char *name, int version) |
34dc7c2f | 348 | { |
34dc7c2f BB |
349 | spa_t *spa; |
350 | ||
351 | if (spa_open(name, &spa, FTAG) == 0) { | |
352 | if (spa_version(spa) < version) { | |
353 | spa_close(spa, FTAG); | |
354 | return (1); | |
355 | } | |
356 | spa_close(spa, FTAG); | |
357 | } | |
358 | return (0); | |
359 | } | |
360 | ||
361 | /* | |
b128c09f | 362 | * Return TRUE if the ZPL version is less than requested version. |
34dc7c2f | 363 | */ |
b128c09f BB |
364 | static boolean_t |
365 | zpl_earlier_version(const char *name, int version) | |
34dc7c2f BB |
366 | { |
367 | objset_t *os; | |
b128c09f | 368 | boolean_t rc = B_TRUE; |
34dc7c2f | 369 | |
428870ff | 370 | if (dmu_objset_hold(name, FTAG, &os) == 0) { |
b128c09f | 371 | uint64_t zplversion; |
34dc7c2f | 372 | |
428870ff BB |
373 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
374 | dmu_objset_rele(os, FTAG); | |
375 | return (B_TRUE); | |
376 | } | |
377 | /* XXX reading from non-owned objset */ | |
b128c09f BB |
378 | if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0) |
379 | rc = zplversion < version; | |
428870ff | 380 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
381 | } |
382 | return (rc); | |
383 | } | |
384 | ||
385 | static void | |
386 | zfs_log_history(zfs_cmd_t *zc) | |
387 | { | |
388 | spa_t *spa; | |
389 | char *buf; | |
390 | ||
391 | if ((buf = history_str_get(zc)) == NULL) | |
392 | return; | |
393 | ||
394 | if (spa_open(zc->zc_name, &spa, FTAG) == 0) { | |
395 | if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY) | |
6f1ffb06 | 396 | (void) spa_history_log(spa, buf); |
34dc7c2f BB |
397 | spa_close(spa, FTAG); |
398 | } | |
399 | history_str_free(buf); | |
400 | } | |
401 | ||
402 | /* | |
403 | * Policy for top-level read operations (list pools). Requires no privileges, | |
404 | * and can be used in the local zone, as there is no associated dataset. | |
405 | */ | |
406 | /* ARGSUSED */ | |
407 | static int | |
6f1ffb06 | 408 | zfs_secpolicy_none(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
409 | { |
410 | return (0); | |
411 | } | |
412 | ||
413 | /* | |
414 | * Policy for dataset read operations (list children, get statistics). Requires | |
415 | * no privileges, but must be visible in the local zone. | |
416 | */ | |
417 | /* ARGSUSED */ | |
418 | static int | |
6f1ffb06 | 419 | zfs_secpolicy_read(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
420 | { |
421 | if (INGLOBALZONE(curproc) || | |
422 | zone_dataset_visible(zc->zc_name, NULL)) | |
423 | return (0); | |
424 | ||
2e528b49 | 425 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
426 | } |
427 | ||
428 | static int | |
572e2857 | 429 | zfs_dozonecheck_impl(const char *dataset, uint64_t zoned, cred_t *cr) |
34dc7c2f | 430 | { |
34dc7c2f BB |
431 | int writable = 1; |
432 | ||
433 | /* | |
434 | * The dataset must be visible by this zone -- check this first | |
435 | * so they don't see EPERM on something they shouldn't know about. | |
436 | */ | |
437 | if (!INGLOBALZONE(curproc) && | |
438 | !zone_dataset_visible(dataset, &writable)) | |
2e528b49 | 439 | return (SET_ERROR(ENOENT)); |
34dc7c2f | 440 | |
34dc7c2f BB |
441 | if (INGLOBALZONE(curproc)) { |
442 | /* | |
443 | * If the fs is zoned, only root can access it from the | |
444 | * global zone. | |
445 | */ | |
446 | if (secpolicy_zfs(cr) && zoned) | |
2e528b49 | 447 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
448 | } else { |
449 | /* | |
450 | * If we are in a local zone, the 'zoned' property must be set. | |
451 | */ | |
452 | if (!zoned) | |
2e528b49 | 453 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
454 | |
455 | /* must be writable by this zone */ | |
456 | if (!writable) | |
2e528b49 | 457 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
458 | } |
459 | return (0); | |
460 | } | |
461 | ||
572e2857 BB |
462 | static int |
463 | zfs_dozonecheck(const char *dataset, cred_t *cr) | |
464 | { | |
465 | uint64_t zoned; | |
466 | ||
467 | if (dsl_prop_get_integer(dataset, "zoned", &zoned, NULL)) | |
2e528b49 | 468 | return (SET_ERROR(ENOENT)); |
572e2857 BB |
469 | |
470 | return (zfs_dozonecheck_impl(dataset, zoned, cr)); | |
471 | } | |
472 | ||
473 | static int | |
474 | zfs_dozonecheck_ds(const char *dataset, dsl_dataset_t *ds, cred_t *cr) | |
475 | { | |
476 | uint64_t zoned; | |
477 | ||
13fe0198 | 478 | if (dsl_prop_get_int_ds(ds, "zoned", &zoned)) |
2e528b49 | 479 | return (SET_ERROR(ENOENT)); |
572e2857 BB |
480 | |
481 | return (zfs_dozonecheck_impl(dataset, zoned, cr)); | |
482 | } | |
483 | ||
6f1ffb06 | 484 | static int |
13fe0198 MA |
485 | zfs_secpolicy_write_perms_ds(const char *name, dsl_dataset_t *ds, |
486 | const char *perm, cred_t *cr) | |
34dc7c2f BB |
487 | { |
488 | int error; | |
489 | ||
330d06f9 | 490 | error = zfs_dozonecheck_ds(name, ds, cr); |
34dc7c2f BB |
491 | if (error == 0) { |
492 | error = secpolicy_zfs(cr); | |
13fe0198 | 493 | if (error != 0) |
6f1ffb06 | 494 | error = dsl_deleg_access_impl(ds, perm, cr); |
34dc7c2f BB |
495 | } |
496 | return (error); | |
497 | } | |
498 | ||
6f1ffb06 | 499 | static int |
13fe0198 | 500 | zfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr) |
572e2857 BB |
501 | { |
502 | int error; | |
13fe0198 MA |
503 | dsl_dataset_t *ds; |
504 | dsl_pool_t *dp; | |
572e2857 | 505 | |
13fe0198 MA |
506 | error = dsl_pool_hold(name, FTAG, &dp); |
507 | if (error != 0) | |
508 | return (error); | |
509 | ||
510 | error = dsl_dataset_hold(dp, name, FTAG, &ds); | |
511 | if (error != 0) { | |
512 | dsl_pool_rele(dp, FTAG); | |
513 | return (error); | |
572e2857 | 514 | } |
13fe0198 MA |
515 | |
516 | error = zfs_secpolicy_write_perms_ds(name, ds, perm, cr); | |
517 | ||
518 | dsl_dataset_rele(ds, FTAG); | |
519 | dsl_pool_rele(dp, FTAG); | |
572e2857 BB |
520 | return (error); |
521 | } | |
522 | ||
428870ff BB |
523 | /* |
524 | * Policy for setting the security label property. | |
525 | * | |
526 | * Returns 0 for success, non-zero for access and other errors. | |
527 | */ | |
34dc7c2f | 528 | static int |
428870ff | 529 | zfs_set_slabel_policy(const char *name, char *strval, cred_t *cr) |
34dc7c2f | 530 | { |
d2c15e84 | 531 | #ifdef HAVE_MLSLABEL |
428870ff BB |
532 | char ds_hexsl[MAXNAMELEN]; |
533 | bslabel_t ds_sl, new_sl; | |
534 | boolean_t new_default = FALSE; | |
535 | uint64_t zoned; | |
536 | int needed_priv = -1; | |
537 | int error; | |
538 | ||
539 | /* First get the existing dataset label. */ | |
540 | error = dsl_prop_get(name, zfs_prop_to_name(ZFS_PROP_MLSLABEL), | |
541 | 1, sizeof (ds_hexsl), &ds_hexsl, NULL); | |
13fe0198 | 542 | if (error != 0) |
2e528b49 | 543 | return (SET_ERROR(EPERM)); |
428870ff BB |
544 | |
545 | if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) | |
546 | new_default = TRUE; | |
547 | ||
548 | /* The label must be translatable */ | |
549 | if (!new_default && (hexstr_to_label(strval, &new_sl) != 0)) | |
2e528b49 | 550 | return (SET_ERROR(EINVAL)); |
428870ff BB |
551 | |
552 | /* | |
553 | * In a non-global zone, disallow attempts to set a label that | |
554 | * doesn't match that of the zone; otherwise no other checks | |
555 | * are needed. | |
556 | */ | |
557 | if (!INGLOBALZONE(curproc)) { | |
558 | if (new_default || !blequal(&new_sl, CR_SL(CRED()))) | |
2e528b49 | 559 | return (SET_ERROR(EPERM)); |
428870ff BB |
560 | return (0); |
561 | } | |
562 | ||
563 | /* | |
564 | * For global-zone datasets (i.e., those whose zoned property is | |
565 | * "off", verify that the specified new label is valid for the | |
566 | * global zone. | |
567 | */ | |
568 | if (dsl_prop_get_integer(name, | |
569 | zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL)) | |
2e528b49 | 570 | return (SET_ERROR(EPERM)); |
428870ff BB |
571 | if (!zoned) { |
572 | if (zfs_check_global_label(name, strval) != 0) | |
2e528b49 | 573 | return (SET_ERROR(EPERM)); |
428870ff BB |
574 | } |
575 | ||
576 | /* | |
577 | * If the existing dataset label is nondefault, check if the | |
578 | * dataset is mounted (label cannot be changed while mounted). | |
3558fd73 | 579 | * Get the zfs_sb_t; if there isn't one, then the dataset isn't |
428870ff BB |
580 | * mounted (or isn't a dataset, doesn't exist, ...). |
581 | */ | |
582 | if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) != 0) { | |
583 | objset_t *os; | |
584 | static char *setsl_tag = "setsl_tag"; | |
585 | ||
586 | /* | |
587 | * Try to own the dataset; abort if there is any error, | |
588 | * (e.g., already mounted, in use, or other error). | |
589 | */ | |
590 | error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE, | |
591 | setsl_tag, &os); | |
13fe0198 | 592 | if (error != 0) |
2e528b49 | 593 | return (SET_ERROR(EPERM)); |
428870ff BB |
594 | |
595 | dmu_objset_disown(os, setsl_tag); | |
596 | ||
597 | if (new_default) { | |
598 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
599 | goto out_check; | |
600 | } | |
601 | ||
602 | if (hexstr_to_label(strval, &new_sl) != 0) | |
2e528b49 | 603 | return (SET_ERROR(EPERM)); |
428870ff BB |
604 | |
605 | if (blstrictdom(&ds_sl, &new_sl)) | |
606 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
607 | else if (blstrictdom(&new_sl, &ds_sl)) | |
608 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
609 | } else { | |
610 | /* dataset currently has a default label */ | |
611 | if (!new_default) | |
612 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
613 | } | |
614 | ||
615 | out_check: | |
616 | if (needed_priv != -1) | |
617 | return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL)); | |
618 | return (0); | |
d2c15e84 | 619 | #else |
d1d7e268 | 620 | return (ENOTSUP); |
d2c15e84 | 621 | #endif /* HAVE_MLSLABEL */ |
428870ff BB |
622 | } |
623 | ||
624 | static int | |
625 | zfs_secpolicy_setprop(const char *dsname, zfs_prop_t prop, nvpair_t *propval, | |
626 | cred_t *cr) | |
627 | { | |
628 | char *strval; | |
629 | ||
34dc7c2f BB |
630 | /* |
631 | * Check permissions for special properties. | |
632 | */ | |
633 | switch (prop) { | |
e75c13c3 BB |
634 | default: |
635 | break; | |
34dc7c2f BB |
636 | case ZFS_PROP_ZONED: |
637 | /* | |
638 | * Disallow setting of 'zoned' from within a local zone. | |
639 | */ | |
640 | if (!INGLOBALZONE(curproc)) | |
2e528b49 | 641 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
642 | break; |
643 | ||
644 | case ZFS_PROP_QUOTA: | |
645 | if (!INGLOBALZONE(curproc)) { | |
646 | uint64_t zoned; | |
647 | char setpoint[MAXNAMELEN]; | |
648 | /* | |
649 | * Unprivileged users are allowed to modify the | |
650 | * quota on things *under* (ie. contained by) | |
651 | * the thing they own. | |
652 | */ | |
428870ff | 653 | if (dsl_prop_get_integer(dsname, "zoned", &zoned, |
34dc7c2f | 654 | setpoint)) |
2e528b49 | 655 | return (SET_ERROR(EPERM)); |
428870ff | 656 | if (!zoned || strlen(dsname) <= strlen(setpoint)) |
2e528b49 | 657 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
658 | } |
659 | break; | |
428870ff BB |
660 | |
661 | case ZFS_PROP_MLSLABEL: | |
662 | if (!is_system_labeled()) | |
2e528b49 | 663 | return (SET_ERROR(EPERM)); |
428870ff BB |
664 | |
665 | if (nvpair_value_string(propval, &strval) == 0) { | |
666 | int err; | |
667 | ||
668 | err = zfs_set_slabel_policy(dsname, strval, CRED()); | |
669 | if (err != 0) | |
670 | return (err); | |
671 | } | |
672 | break; | |
34dc7c2f BB |
673 | } |
674 | ||
428870ff | 675 | return (zfs_secpolicy_write_perms(dsname, zfs_prop_to_name(prop), cr)); |
34dc7c2f BB |
676 | } |
677 | ||
6f1ffb06 MA |
678 | /* ARGSUSED */ |
679 | static int | |
680 | zfs_secpolicy_set_fsacl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f BB |
681 | { |
682 | int error; | |
683 | ||
684 | error = zfs_dozonecheck(zc->zc_name, cr); | |
13fe0198 | 685 | if (error != 0) |
34dc7c2f BB |
686 | return (error); |
687 | ||
688 | /* | |
689 | * permission to set permissions will be evaluated later in | |
690 | * dsl_deleg_can_allow() | |
691 | */ | |
692 | return (0); | |
693 | } | |
694 | ||
6f1ffb06 MA |
695 | /* ARGSUSED */ |
696 | static int | |
697 | zfs_secpolicy_rollback(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f | 698 | { |
428870ff BB |
699 | return (zfs_secpolicy_write_perms(zc->zc_name, |
700 | ZFS_DELEG_PERM_ROLLBACK, cr)); | |
34dc7c2f BB |
701 | } |
702 | ||
6f1ffb06 MA |
703 | /* ARGSUSED */ |
704 | static int | |
705 | zfs_secpolicy_send(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
34dc7c2f | 706 | { |
572e2857 BB |
707 | dsl_pool_t *dp; |
708 | dsl_dataset_t *ds; | |
709 | char *cp; | |
710 | int error; | |
711 | ||
712 | /* | |
713 | * Generate the current snapshot name from the given objsetid, then | |
714 | * use that name for the secpolicy/zone checks. | |
715 | */ | |
716 | cp = strchr(zc->zc_name, '@'); | |
717 | if (cp == NULL) | |
2e528b49 | 718 | return (SET_ERROR(EINVAL)); |
13fe0198 MA |
719 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
720 | if (error != 0) | |
572e2857 BB |
721 | return (error); |
722 | ||
572e2857 | 723 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds); |
13fe0198 MA |
724 | if (error != 0) { |
725 | dsl_pool_rele(dp, FTAG); | |
572e2857 | 726 | return (error); |
13fe0198 | 727 | } |
572e2857 BB |
728 | |
729 | dsl_dataset_name(ds, zc->zc_name); | |
730 | ||
731 | error = zfs_secpolicy_write_perms_ds(zc->zc_name, ds, | |
732 | ZFS_DELEG_PERM_SEND, cr); | |
733 | dsl_dataset_rele(ds, FTAG); | |
13fe0198 | 734 | dsl_pool_rele(dp, FTAG); |
572e2857 BB |
735 | |
736 | return (error); | |
34dc7c2f BB |
737 | } |
738 | ||
6f1ffb06 MA |
739 | /* ARGSUSED */ |
740 | static int | |
741 | zfs_secpolicy_send_new(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
742 | { | |
743 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
744 | ZFS_DELEG_PERM_SEND, cr)); | |
745 | } | |
746 | ||
3c9609b3 | 747 | #ifdef HAVE_SMB_SHARE |
6f1ffb06 | 748 | /* ARGSUSED */ |
9babb374 | 749 | static int |
6f1ffb06 | 750 | zfs_secpolicy_deleg_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 BB |
751 | { |
752 | vnode_t *vp; | |
753 | int error; | |
754 | ||
755 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
756 | NO_FOLLOW, NULL, &vp)) != 0) | |
757 | return (error); | |
758 | ||
759 | /* Now make sure mntpnt and dataset are ZFS */ | |
760 | ||
761 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
762 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
763 | zc->zc_name) != 0)) { | |
764 | VN_RELE(vp); | |
2e528b49 | 765 | return (SET_ERROR(EPERM)); |
9babb374 BB |
766 | } |
767 | ||
768 | VN_RELE(vp); | |
769 | return (dsl_deleg_access(zc->zc_name, | |
770 | ZFS_DELEG_PERM_SHARE, cr)); | |
771 | } | |
3c9609b3 | 772 | #endif /* HAVE_SMB_SHARE */ |
9babb374 | 773 | |
34dc7c2f | 774 | int |
6f1ffb06 | 775 | zfs_secpolicy_share(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 776 | { |
3c9609b3 | 777 | #ifdef HAVE_SMB_SHARE |
34dc7c2f | 778 | if (!INGLOBALZONE(curproc)) |
2e528b49 | 779 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
780 | |
781 | if (secpolicy_nfs(cr) == 0) { | |
782 | return (0); | |
783 | } else { | |
6f1ffb06 | 784 | return (zfs_secpolicy_deleg_share(zc, innvl, cr)); |
9babb374 | 785 | } |
325f0235 | 786 | #else |
2e528b49 | 787 | return (SET_ERROR(ENOTSUP)); |
3c9609b3 | 788 | #endif /* HAVE_SMB_SHARE */ |
9babb374 | 789 | } |
34dc7c2f | 790 | |
9babb374 | 791 | int |
6f1ffb06 | 792 | zfs_secpolicy_smb_acl(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 793 | { |
3c9609b3 | 794 | #ifdef HAVE_SMB_SHARE |
9babb374 | 795 | if (!INGLOBALZONE(curproc)) |
2e528b49 | 796 | return (SET_ERROR(EPERM)); |
34dc7c2f | 797 | |
9babb374 BB |
798 | if (secpolicy_smb(cr) == 0) { |
799 | return (0); | |
800 | } else { | |
6f1ffb06 | 801 | return (zfs_secpolicy_deleg_share(zc, innvl, cr)); |
34dc7c2f | 802 | } |
325f0235 | 803 | #else |
2e528b49 | 804 | return (SET_ERROR(ENOTSUP)); |
3c9609b3 | 805 | #endif /* HAVE_SMB_SHARE */ |
34dc7c2f BB |
806 | } |
807 | ||
808 | static int | |
809 | zfs_get_parent(const char *datasetname, char *parent, int parentsize) | |
810 | { | |
811 | char *cp; | |
812 | ||
813 | /* | |
814 | * Remove the @bla or /bla from the end of the name to get the parent. | |
815 | */ | |
816 | (void) strncpy(parent, datasetname, parentsize); | |
817 | cp = strrchr(parent, '@'); | |
818 | if (cp != NULL) { | |
819 | cp[0] = '\0'; | |
820 | } else { | |
821 | cp = strrchr(parent, '/'); | |
822 | if (cp == NULL) | |
2e528b49 | 823 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
824 | cp[0] = '\0'; |
825 | } | |
826 | ||
827 | return (0); | |
828 | } | |
829 | ||
830 | int | |
831 | zfs_secpolicy_destroy_perms(const char *name, cred_t *cr) | |
832 | { | |
833 | int error; | |
834 | ||
835 | if ((error = zfs_secpolicy_write_perms(name, | |
836 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
837 | return (error); | |
838 | ||
839 | return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr)); | |
840 | } | |
841 | ||
6f1ffb06 | 842 | /* ARGSUSED */ |
34dc7c2f | 843 | static int |
6f1ffb06 | 844 | zfs_secpolicy_destroy(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
845 | { |
846 | return (zfs_secpolicy_destroy_perms(zc->zc_name, cr)); | |
847 | } | |
848 | ||
849 | /* | |
428870ff | 850 | * Destroying snapshots with delegated permissions requires |
6f1ffb06 | 851 | * descendant mount and destroy permissions. |
34dc7c2f | 852 | */ |
6f1ffb06 | 853 | /* ARGSUSED */ |
34dc7c2f | 854 | static int |
6f1ffb06 | 855 | zfs_secpolicy_destroy_snaps(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 856 | { |
6f1ffb06 MA |
857 | nvlist_t *snaps; |
858 | nvpair_t *pair, *nextpair; | |
859 | int error = 0; | |
428870ff | 860 | |
6f1ffb06 | 861 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) |
2e528b49 | 862 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
863 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; |
864 | pair = nextpair) { | |
6f1ffb06 | 865 | nextpair = nvlist_next_nvpair(snaps, pair); |
da536844 MA |
866 | error = zfs_secpolicy_destroy_perms(nvpair_name(pair), cr); |
867 | if (error == ENOENT) { | |
6f1ffb06 MA |
868 | /* |
869 | * Ignore any snapshots that don't exist (we consider | |
870 | * them "already destroyed"). Remove the name from the | |
871 | * nvl here in case the snapshot is created between | |
872 | * now and when we try to destroy it (in which case | |
873 | * we don't want to destroy it since we haven't | |
874 | * checked for permission). | |
875 | */ | |
876 | fnvlist_remove_nvpair(snaps, pair); | |
877 | error = 0; | |
6f1ffb06 | 878 | } |
6f1ffb06 MA |
879 | if (error != 0) |
880 | break; | |
881 | } | |
428870ff | 882 | |
428870ff | 883 | return (error); |
34dc7c2f BB |
884 | } |
885 | ||
886 | int | |
887 | zfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr) | |
888 | { | |
428870ff | 889 | char parentname[MAXNAMELEN]; |
34dc7c2f BB |
890 | int error; |
891 | ||
892 | if ((error = zfs_secpolicy_write_perms(from, | |
893 | ZFS_DELEG_PERM_RENAME, cr)) != 0) | |
894 | return (error); | |
895 | ||
896 | if ((error = zfs_secpolicy_write_perms(from, | |
897 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
898 | return (error); | |
899 | ||
900 | if ((error = zfs_get_parent(to, parentname, | |
901 | sizeof (parentname))) != 0) | |
902 | return (error); | |
903 | ||
904 | if ((error = zfs_secpolicy_write_perms(parentname, | |
905 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
906 | return (error); | |
907 | ||
908 | if ((error = zfs_secpolicy_write_perms(parentname, | |
909 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
910 | return (error); | |
911 | ||
912 | return (error); | |
913 | } | |
914 | ||
6f1ffb06 | 915 | /* ARGSUSED */ |
34dc7c2f | 916 | static int |
6f1ffb06 | 917 | zfs_secpolicy_rename(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
918 | { |
919 | return (zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr)); | |
920 | } | |
921 | ||
6f1ffb06 | 922 | /* ARGSUSED */ |
34dc7c2f | 923 | static int |
6f1ffb06 | 924 | zfs_secpolicy_promote(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 925 | { |
13fe0198 MA |
926 | dsl_pool_t *dp; |
927 | dsl_dataset_t *clone; | |
34dc7c2f BB |
928 | int error; |
929 | ||
930 | error = zfs_secpolicy_write_perms(zc->zc_name, | |
931 | ZFS_DELEG_PERM_PROMOTE, cr); | |
13fe0198 MA |
932 | if (error != 0) |
933 | return (error); | |
934 | ||
935 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); | |
936 | if (error != 0) | |
34dc7c2f BB |
937 | return (error); |
938 | ||
13fe0198 | 939 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &clone); |
34dc7c2f BB |
940 | |
941 | if (error == 0) { | |
13fe0198 MA |
942 | char parentname[MAXNAMELEN]; |
943 | dsl_dataset_t *origin = NULL; | |
34dc7c2f | 944 | dsl_dir_t *dd; |
13fe0198 | 945 | dd = clone->ds_dir; |
34dc7c2f | 946 | |
b128c09f | 947 | error = dsl_dataset_hold_obj(dd->dd_pool, |
13fe0198 MA |
948 | dd->dd_phys->dd_origin_obj, FTAG, &origin); |
949 | if (error != 0) { | |
950 | dsl_dataset_rele(clone, FTAG); | |
951 | dsl_pool_rele(dp, FTAG); | |
34dc7c2f BB |
952 | return (error); |
953 | } | |
954 | ||
13fe0198 | 955 | error = zfs_secpolicy_write_perms_ds(zc->zc_name, clone, |
34dc7c2f BB |
956 | ZFS_DELEG_PERM_MOUNT, cr); |
957 | ||
13fe0198 MA |
958 | dsl_dataset_name(origin, parentname); |
959 | if (error == 0) { | |
960 | error = zfs_secpolicy_write_perms_ds(parentname, origin, | |
34dc7c2f | 961 | ZFS_DELEG_PERM_PROMOTE, cr); |
13fe0198 MA |
962 | } |
963 | dsl_dataset_rele(clone, FTAG); | |
964 | dsl_dataset_rele(origin, FTAG); | |
34dc7c2f | 965 | } |
13fe0198 | 966 | dsl_pool_rele(dp, FTAG); |
34dc7c2f BB |
967 | return (error); |
968 | } | |
969 | ||
6f1ffb06 | 970 | /* ARGSUSED */ |
34dc7c2f | 971 | static int |
6f1ffb06 | 972 | zfs_secpolicy_recv(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
973 | { |
974 | int error; | |
975 | ||
976 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
977 | ZFS_DELEG_PERM_RECEIVE, cr)) != 0) | |
978 | return (error); | |
979 | ||
980 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
981 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
982 | return (error); | |
983 | ||
984 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
985 | ZFS_DELEG_PERM_CREATE, cr)); | |
986 | } | |
987 | ||
988 | int | |
989 | zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr) | |
990 | { | |
428870ff BB |
991 | return (zfs_secpolicy_write_perms(name, |
992 | ZFS_DELEG_PERM_SNAPSHOT, cr)); | |
34dc7c2f BB |
993 | } |
994 | ||
6f1ffb06 MA |
995 | /* |
996 | * Check for permission to create each snapshot in the nvlist. | |
997 | */ | |
998 | /* ARGSUSED */ | |
34dc7c2f | 999 | static int |
6f1ffb06 | 1000 | zfs_secpolicy_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 1001 | { |
6f1ffb06 MA |
1002 | nvlist_t *snaps; |
1003 | int error = 0; | |
1004 | nvpair_t *pair; | |
1005 | ||
1006 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) | |
2e528b49 | 1007 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
1008 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; |
1009 | pair = nvlist_next_nvpair(snaps, pair)) { | |
1010 | char *name = nvpair_name(pair); | |
1011 | char *atp = strchr(name, '@'); | |
34dc7c2f | 1012 | |
6f1ffb06 | 1013 | if (atp == NULL) { |
2e528b49 | 1014 | error = SET_ERROR(EINVAL); |
6f1ffb06 MA |
1015 | break; |
1016 | } | |
1017 | *atp = '\0'; | |
1018 | error = zfs_secpolicy_snapshot_perms(name, cr); | |
1019 | *atp = '@'; | |
1020 | if (error != 0) | |
1021 | break; | |
1022 | } | |
1023 | return (error); | |
1024 | } | |
1025 | ||
da536844 MA |
1026 | /* |
1027 | * Check for permission to create each snapshot in the nvlist. | |
1028 | */ | |
1029 | /* ARGSUSED */ | |
1030 | static int | |
1031 | zfs_secpolicy_bookmark(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1032 | { | |
1033 | int error = 0; | |
1034 | nvpair_t *pair; | |
1035 | ||
1036 | for (pair = nvlist_next_nvpair(innvl, NULL); | |
1037 | pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { | |
1038 | char *name = nvpair_name(pair); | |
1039 | char *hashp = strchr(name, '#'); | |
1040 | ||
1041 | if (hashp == NULL) { | |
1042 | error = SET_ERROR(EINVAL); | |
1043 | break; | |
1044 | } | |
1045 | *hashp = '\0'; | |
1046 | error = zfs_secpolicy_write_perms(name, | |
1047 | ZFS_DELEG_PERM_BOOKMARK, cr); | |
1048 | *hashp = '#'; | |
1049 | if (error != 0) | |
1050 | break; | |
1051 | } | |
1052 | return (error); | |
1053 | } | |
1054 | ||
1055 | /* ARGSUSED */ | |
1056 | static int | |
1057 | zfs_secpolicy_destroy_bookmarks(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1058 | { | |
1059 | nvpair_t *pair, *nextpair; | |
1060 | int error = 0; | |
1061 | ||
1062 | for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL; | |
1063 | pair = nextpair) { | |
1064 | char *name = nvpair_name(pair); | |
1065 | char *hashp = strchr(name, '#'); | |
1066 | nextpair = nvlist_next_nvpair(innvl, pair); | |
1067 | ||
1068 | if (hashp == NULL) { | |
1069 | error = SET_ERROR(EINVAL); | |
1070 | break; | |
1071 | } | |
1072 | ||
1073 | *hashp = '\0'; | |
1074 | error = zfs_secpolicy_write_perms(name, | |
1075 | ZFS_DELEG_PERM_DESTROY, cr); | |
1076 | *hashp = '#'; | |
1077 | if (error == ENOENT) { | |
1078 | /* | |
1079 | * Ignore any filesystems that don't exist (we consider | |
1080 | * their bookmarks "already destroyed"). Remove | |
1081 | * the name from the nvl here in case the filesystem | |
1082 | * is created between now and when we try to destroy | |
1083 | * the bookmark (in which case we don't want to | |
1084 | * destroy it since we haven't checked for permission). | |
1085 | */ | |
1086 | fnvlist_remove_nvpair(innvl, pair); | |
1087 | error = 0; | |
1088 | } | |
1089 | if (error != 0) | |
1090 | break; | |
1091 | } | |
1092 | ||
1093 | return (error); | |
1094 | } | |
1095 | ||
6f1ffb06 MA |
1096 | /* ARGSUSED */ |
1097 | static int | |
1098 | zfs_secpolicy_log_history(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) | |
1099 | { | |
1100 | /* | |
1101 | * Even root must have a proper TSD so that we know what pool | |
1102 | * to log to. | |
1103 | */ | |
1104 | if (tsd_get(zfs_allow_log_key) == NULL) | |
2e528b49 | 1105 | return (SET_ERROR(EPERM)); |
6f1ffb06 | 1106 | return (0); |
34dc7c2f BB |
1107 | } |
1108 | ||
1109 | static int | |
6f1ffb06 | 1110 | zfs_secpolicy_create_clone(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f | 1111 | { |
428870ff BB |
1112 | char parentname[MAXNAMELEN]; |
1113 | int error; | |
6f1ffb06 | 1114 | char *origin; |
34dc7c2f BB |
1115 | |
1116 | if ((error = zfs_get_parent(zc->zc_name, parentname, | |
1117 | sizeof (parentname))) != 0) | |
1118 | return (error); | |
1119 | ||
6f1ffb06 MA |
1120 | if (nvlist_lookup_string(innvl, "origin", &origin) == 0 && |
1121 | (error = zfs_secpolicy_write_perms(origin, | |
1122 | ZFS_DELEG_PERM_CLONE, cr)) != 0) | |
1123 | return (error); | |
34dc7c2f BB |
1124 | |
1125 | if ((error = zfs_secpolicy_write_perms(parentname, | |
1126 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
1127 | return (error); | |
1128 | ||
6f1ffb06 MA |
1129 | return (zfs_secpolicy_write_perms(parentname, |
1130 | ZFS_DELEG_PERM_MOUNT, cr)); | |
34dc7c2f BB |
1131 | } |
1132 | ||
34dc7c2f BB |
1133 | /* |
1134 | * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires | |
1135 | * SYS_CONFIG privilege, which is not available in a local zone. | |
1136 | */ | |
1137 | /* ARGSUSED */ | |
1138 | static int | |
6f1ffb06 | 1139 | zfs_secpolicy_config(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1140 | { |
1141 | if (secpolicy_sys_config(cr, B_FALSE) != 0) | |
2e528b49 | 1142 | return (SET_ERROR(EPERM)); |
34dc7c2f BB |
1143 | |
1144 | return (0); | |
1145 | } | |
1146 | ||
572e2857 BB |
1147 | /* |
1148 | * Policy for object to name lookups. | |
1149 | */ | |
1150 | /* ARGSUSED */ | |
1151 | static int | |
6f1ffb06 | 1152 | zfs_secpolicy_diff(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
572e2857 BB |
1153 | { |
1154 | int error; | |
1155 | ||
1156 | if ((error = secpolicy_sys_config(cr, B_FALSE)) == 0) | |
1157 | return (0); | |
1158 | ||
1159 | error = zfs_secpolicy_write_perms(zc->zc_name, ZFS_DELEG_PERM_DIFF, cr); | |
1160 | return (error); | |
1161 | } | |
1162 | ||
34dc7c2f BB |
1163 | /* |
1164 | * Policy for fault injection. Requires all privileges. | |
1165 | */ | |
1166 | /* ARGSUSED */ | |
1167 | static int | |
6f1ffb06 | 1168 | zfs_secpolicy_inject(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1169 | { |
1170 | return (secpolicy_zinject(cr)); | |
1171 | } | |
1172 | ||
6f1ffb06 | 1173 | /* ARGSUSED */ |
34dc7c2f | 1174 | static int |
6f1ffb06 | 1175 | zfs_secpolicy_inherit_prop(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
34dc7c2f BB |
1176 | { |
1177 | zfs_prop_t prop = zfs_name_to_prop(zc->zc_value); | |
1178 | ||
1179 | if (prop == ZPROP_INVAL) { | |
1180 | if (!zfs_prop_user(zc->zc_value)) | |
2e528b49 | 1181 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1182 | return (zfs_secpolicy_write_perms(zc->zc_name, |
1183 | ZFS_DELEG_PERM_USERPROP, cr)); | |
1184 | } else { | |
428870ff BB |
1185 | return (zfs_secpolicy_setprop(zc->zc_name, prop, |
1186 | NULL, cr)); | |
34dc7c2f BB |
1187 | } |
1188 | } | |
1189 | ||
9babb374 | 1190 | static int |
6f1ffb06 | 1191 | zfs_secpolicy_userspace_one(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1192 | { |
6f1ffb06 | 1193 | int err = zfs_secpolicy_read(zc, innvl, cr); |
9babb374 BB |
1194 | if (err) |
1195 | return (err); | |
1196 | ||
1197 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
2e528b49 | 1198 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
1199 | |
1200 | if (zc->zc_value[0] == 0) { | |
1201 | /* | |
1202 | * They are asking about a posix uid/gid. If it's | |
1203 | * themself, allow it. | |
1204 | */ | |
1205 | if (zc->zc_objset_type == ZFS_PROP_USERUSED || | |
1206 | zc->zc_objset_type == ZFS_PROP_USERQUOTA) { | |
1207 | if (zc->zc_guid == crgetuid(cr)) | |
1208 | return (0); | |
1209 | } else { | |
1210 | if (groupmember(zc->zc_guid, cr)) | |
1211 | return (0); | |
1212 | } | |
1213 | } | |
1214 | ||
1215 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
1216 | userquota_perms[zc->zc_objset_type], cr)); | |
1217 | } | |
1218 | ||
1219 | static int | |
6f1ffb06 | 1220 | zfs_secpolicy_userspace_many(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1221 | { |
6f1ffb06 | 1222 | int err = zfs_secpolicy_read(zc, innvl, cr); |
9babb374 BB |
1223 | if (err) |
1224 | return (err); | |
1225 | ||
1226 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
2e528b49 | 1227 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
1228 | |
1229 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
1230 | userquota_perms[zc->zc_objset_type], cr)); | |
1231 | } | |
1232 | ||
6f1ffb06 | 1233 | /* ARGSUSED */ |
9babb374 | 1234 | static int |
6f1ffb06 | 1235 | zfs_secpolicy_userspace_upgrade(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
9babb374 | 1236 | { |
428870ff BB |
1237 | return (zfs_secpolicy_setprop(zc->zc_name, ZFS_PROP_VERSION, |
1238 | NULL, cr)); | |
9babb374 BB |
1239 | } |
1240 | ||
6f1ffb06 | 1241 | /* ARGSUSED */ |
45d1cae3 | 1242 | static int |
6f1ffb06 | 1243 | zfs_secpolicy_hold(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
45d1cae3 | 1244 | { |
13fe0198 MA |
1245 | nvpair_t *pair; |
1246 | nvlist_t *holds; | |
1247 | int error; | |
1248 | ||
1249 | error = nvlist_lookup_nvlist(innvl, "holds", &holds); | |
1250 | if (error != 0) | |
2e528b49 | 1251 | return (SET_ERROR(EINVAL)); |
13fe0198 MA |
1252 | |
1253 | for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL; | |
1254 | pair = nvlist_next_nvpair(holds, pair)) { | |
1255 | char fsname[MAXNAMELEN]; | |
1256 | error = dmu_fsname(nvpair_name(pair), fsname); | |
1257 | if (error != 0) | |
1258 | return (error); | |
1259 | error = zfs_secpolicy_write_perms(fsname, | |
1260 | ZFS_DELEG_PERM_HOLD, cr); | |
1261 | if (error != 0) | |
1262 | return (error); | |
1263 | } | |
1264 | return (0); | |
45d1cae3 BB |
1265 | } |
1266 | ||
6f1ffb06 | 1267 | /* ARGSUSED */ |
45d1cae3 | 1268 | static int |
6f1ffb06 | 1269 | zfs_secpolicy_release(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
45d1cae3 | 1270 | { |
13fe0198 MA |
1271 | nvpair_t *pair; |
1272 | int error; | |
1273 | ||
1274 | for (pair = nvlist_next_nvpair(innvl, NULL); pair != NULL; | |
1275 | pair = nvlist_next_nvpair(innvl, pair)) { | |
1276 | char fsname[MAXNAMELEN]; | |
1277 | error = dmu_fsname(nvpair_name(pair), fsname); | |
1278 | if (error != 0) | |
1279 | return (error); | |
1280 | error = zfs_secpolicy_write_perms(fsname, | |
1281 | ZFS_DELEG_PERM_RELEASE, cr); | |
1282 | if (error != 0) | |
1283 | return (error); | |
1284 | } | |
1285 | return (0); | |
45d1cae3 BB |
1286 | } |
1287 | ||
572e2857 BB |
1288 | /* |
1289 | * Policy for allowing temporary snapshots to be taken or released | |
1290 | */ | |
1291 | static int | |
6f1ffb06 | 1292 | zfs_secpolicy_tmp_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr) |
572e2857 BB |
1293 | { |
1294 | /* | |
1295 | * A temporary snapshot is the same as a snapshot, | |
1296 | * hold, destroy and release all rolled into one. | |
1297 | * Delegated diff alone is sufficient that we allow this. | |
1298 | */ | |
1299 | int error; | |
1300 | ||
1301 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
1302 | ZFS_DELEG_PERM_DIFF, cr)) == 0) | |
1303 | return (0); | |
1304 | ||
6f1ffb06 | 1305 | error = zfs_secpolicy_snapshot_perms(zc->zc_name, cr); |
13fe0198 | 1306 | if (error == 0) |
6f1ffb06 | 1307 | error = zfs_secpolicy_hold(zc, innvl, cr); |
13fe0198 | 1308 | if (error == 0) |
6f1ffb06 | 1309 | error = zfs_secpolicy_release(zc, innvl, cr); |
13fe0198 | 1310 | if (error == 0) |
6f1ffb06 | 1311 | error = zfs_secpolicy_destroy(zc, innvl, cr); |
572e2857 BB |
1312 | return (error); |
1313 | } | |
1314 | ||
34dc7c2f BB |
1315 | /* |
1316 | * Returns the nvlist as specified by the user in the zfs_cmd_t. | |
1317 | */ | |
1318 | static int | |
9babb374 | 1319 | get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp) |
34dc7c2f BB |
1320 | { |
1321 | char *packed; | |
1322 | int error; | |
1323 | nvlist_t *list = NULL; | |
1324 | ||
1325 | /* | |
1326 | * Read in and unpack the user-supplied nvlist. | |
1327 | */ | |
1328 | if (size == 0) | |
2e528b49 | 1329 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 1330 | |
77aef6f6 | 1331 | packed = vmem_alloc(size, KM_SLEEP); |
34dc7c2f | 1332 | |
9babb374 BB |
1333 | if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size, |
1334 | iflag)) != 0) { | |
77aef6f6 | 1335 | vmem_free(packed, size); |
34dc7c2f BB |
1336 | return (error); |
1337 | } | |
1338 | ||
1339 | if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) { | |
77aef6f6 | 1340 | vmem_free(packed, size); |
34dc7c2f BB |
1341 | return (error); |
1342 | } | |
1343 | ||
77aef6f6 | 1344 | vmem_free(packed, size); |
34dc7c2f BB |
1345 | |
1346 | *nvp = list; | |
1347 | return (0); | |
1348 | } | |
1349 | ||
6f1ffb06 MA |
1350 | /* |
1351 | * Reduce the size of this nvlist until it can be serialized in 'max' bytes. | |
1352 | * Entries will be removed from the end of the nvlist, and one int32 entry | |
1353 | * named "N_MORE_ERRORS" will be added indicating how many entries were | |
1354 | * removed. | |
1355 | */ | |
428870ff | 1356 | static int |
6f1ffb06 | 1357 | nvlist_smush(nvlist_t *errors, size_t max) |
428870ff BB |
1358 | { |
1359 | size_t size; | |
1360 | ||
6f1ffb06 | 1361 | size = fnvlist_size(errors); |
428870ff | 1362 | |
6f1ffb06 | 1363 | if (size > max) { |
428870ff BB |
1364 | nvpair_t *more_errors; |
1365 | int n = 0; | |
1366 | ||
6f1ffb06 | 1367 | if (max < 1024) |
2e528b49 | 1368 | return (SET_ERROR(ENOMEM)); |
428870ff | 1369 | |
6f1ffb06 MA |
1370 | fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, 0); |
1371 | more_errors = nvlist_prev_nvpair(errors, NULL); | |
428870ff BB |
1372 | |
1373 | do { | |
6f1ffb06 | 1374 | nvpair_t *pair = nvlist_prev_nvpair(errors, |
428870ff | 1375 | more_errors); |
6f1ffb06 | 1376 | fnvlist_remove_nvpair(errors, pair); |
428870ff | 1377 | n++; |
6f1ffb06 MA |
1378 | size = fnvlist_size(errors); |
1379 | } while (size > max); | |
428870ff | 1380 | |
6f1ffb06 MA |
1381 | fnvlist_remove_nvpair(errors, more_errors); |
1382 | fnvlist_add_int32(errors, ZPROP_N_MORE_ERRORS, n); | |
1383 | ASSERT3U(fnvlist_size(errors), <=, max); | |
428870ff BB |
1384 | } |
1385 | ||
1386 | return (0); | |
1387 | } | |
1388 | ||
34dc7c2f BB |
1389 | static int |
1390 | put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl) | |
1391 | { | |
1392 | char *packed = NULL; | |
428870ff | 1393 | int error = 0; |
34dc7c2f | 1394 | size_t size; |
34dc7c2f | 1395 | |
6f1ffb06 | 1396 | size = fnvlist_size(nvl); |
34dc7c2f BB |
1397 | |
1398 | if (size > zc->zc_nvlist_dst_size) { | |
2e528b49 | 1399 | error = SET_ERROR(ENOMEM); |
34dc7c2f | 1400 | } else { |
6f1ffb06 | 1401 | packed = fnvlist_pack(nvl, &size); |
428870ff BB |
1402 | if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst, |
1403 | size, zc->zc_iflags) != 0) | |
2e528b49 | 1404 | error = SET_ERROR(EFAULT); |
6f1ffb06 | 1405 | fnvlist_pack_free(packed, size); |
34dc7c2f BB |
1406 | } |
1407 | ||
1408 | zc->zc_nvlist_dst_size = size; | |
6f1ffb06 | 1409 | zc->zc_nvlist_dst_filled = B_TRUE; |
34dc7c2f BB |
1410 | return (error); |
1411 | } | |
1412 | ||
9babb374 | 1413 | static int |
3558fd73 | 1414 | get_zfs_sb(const char *dsname, zfs_sb_t **zsbp) |
9babb374 BB |
1415 | { |
1416 | objset_t *os; | |
1417 | int error; | |
1418 | ||
428870ff | 1419 | error = dmu_objset_hold(dsname, FTAG, &os); |
13fe0198 | 1420 | if (error != 0) |
9babb374 | 1421 | return (error); |
428870ff BB |
1422 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
1423 | dmu_objset_rele(os, FTAG); | |
2e528b49 | 1424 | return (SET_ERROR(EINVAL)); |
428870ff | 1425 | } |
9babb374 | 1426 | |
428870ff | 1427 | mutex_enter(&os->os_user_ptr_lock); |
3558fd73 | 1428 | *zsbp = dmu_objset_get_user(os); |
2cf7f52b | 1429 | if (*zsbp && (*zsbp)->z_sb) { |
61f218b0 | 1430 | atomic_inc(&((*zsbp)->z_sb->s_active)); |
9babb374 | 1431 | } else { |
2e528b49 | 1432 | error = SET_ERROR(ESRCH); |
9babb374 | 1433 | } |
428870ff BB |
1434 | mutex_exit(&os->os_user_ptr_lock); |
1435 | dmu_objset_rele(os, FTAG); | |
9babb374 BB |
1436 | return (error); |
1437 | } | |
1438 | ||
1439 | /* | |
3558fd73 | 1440 | * Find a zfs_sb_t for a mounted filesystem, or create our own, in which |
2cf7f52b | 1441 | * case its z_sb will be NULL, and it will be opened as the owner. |
9ae529ec CS |
1442 | * If 'writer' is set, the z_teardown_lock will be held for RW_WRITER, |
1443 | * which prevents all inode ops from running. | |
9babb374 BB |
1444 | */ |
1445 | static int | |
3558fd73 | 1446 | zfs_sb_hold(const char *name, void *tag, zfs_sb_t **zsbp, boolean_t writer) |
9babb374 BB |
1447 | { |
1448 | int error = 0; | |
9babb374 | 1449 | |
3558fd73 BB |
1450 | if (get_zfs_sb(name, zsbp) != 0) |
1451 | error = zfs_sb_create(name, zsbp); | |
9babb374 | 1452 | if (error == 0) { |
3558fd73 | 1453 | rrw_enter(&(*zsbp)->z_teardown_lock, (writer) ? RW_WRITER : |
572e2857 | 1454 | RW_READER, tag); |
3558fd73 | 1455 | if ((*zsbp)->z_unmounted) { |
9babb374 BB |
1456 | /* |
1457 | * XXX we could probably try again, since the unmounting | |
1458 | * thread should be just about to disassociate the | |
831baf06 | 1459 | * objset from the zsb. |
9babb374 | 1460 | */ |
3558fd73 | 1461 | rrw_exit(&(*zsbp)->z_teardown_lock, tag); |
2e528b49 | 1462 | return (SET_ERROR(EBUSY)); |
9babb374 BB |
1463 | } |
1464 | } | |
1465 | return (error); | |
1466 | } | |
1467 | ||
1468 | static void | |
3558fd73 | 1469 | zfs_sb_rele(zfs_sb_t *zsb, void *tag) |
9babb374 | 1470 | { |
3558fd73 | 1471 | rrw_exit(&zsb->z_teardown_lock, tag); |
9babb374 | 1472 | |
2cf7f52b BB |
1473 | if (zsb->z_sb) { |
1474 | deactivate_super(zsb->z_sb); | |
9babb374 | 1475 | } else { |
3558fd73 BB |
1476 | dmu_objset_disown(zsb->z_os, zsb); |
1477 | zfs_sb_free(zsb); | |
9babb374 BB |
1478 | } |
1479 | } | |
1480 | ||
34dc7c2f BB |
1481 | static int |
1482 | zfs_ioc_pool_create(zfs_cmd_t *zc) | |
1483 | { | |
1484 | int error; | |
1485 | nvlist_t *config, *props = NULL; | |
b128c09f BB |
1486 | nvlist_t *rootprops = NULL; |
1487 | nvlist_t *zplprops = NULL; | |
34dc7c2f | 1488 | |
c65aa5b2 BB |
1489 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, |
1490 | zc->zc_iflags, &config))) | |
34dc7c2f BB |
1491 | return (error); |
1492 | ||
1493 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1494 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1495 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1496 | nvlist_free(config); |
1497 | return (error); | |
1498 | } | |
1499 | ||
b128c09f BB |
1500 | if (props) { |
1501 | nvlist_t *nvl = NULL; | |
1502 | uint64_t version = SPA_VERSION; | |
1503 | ||
1504 | (void) nvlist_lookup_uint64(props, | |
1505 | zpool_prop_to_name(ZPOOL_PROP_VERSION), &version); | |
9ae529ec | 1506 | if (!SPA_VERSION_IS_SUPPORTED(version)) { |
2e528b49 | 1507 | error = SET_ERROR(EINVAL); |
b128c09f BB |
1508 | goto pool_props_bad; |
1509 | } | |
1510 | (void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl); | |
1511 | if (nvl) { | |
1512 | error = nvlist_dup(nvl, &rootprops, KM_SLEEP); | |
1513 | if (error != 0) { | |
1514 | nvlist_free(config); | |
1515 | nvlist_free(props); | |
1516 | return (error); | |
1517 | } | |
1518 | (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS); | |
1519 | } | |
1520 | VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
1521 | error = zfs_fill_zplprops_root(version, rootprops, | |
1522 | zplprops, NULL); | |
13fe0198 | 1523 | if (error != 0) |
b128c09f BB |
1524 | goto pool_props_bad; |
1525 | } | |
1526 | ||
6f1ffb06 | 1527 | error = spa_create(zc->zc_name, config, props, zplprops); |
b128c09f BB |
1528 | |
1529 | /* | |
1530 | * Set the remaining root properties | |
1531 | */ | |
428870ff BB |
1532 | if (!error && (error = zfs_set_prop_nvlist(zc->zc_name, |
1533 | ZPROP_SRC_LOCAL, rootprops, NULL)) != 0) | |
b128c09f | 1534 | (void) spa_destroy(zc->zc_name); |
34dc7c2f | 1535 | |
b128c09f BB |
1536 | pool_props_bad: |
1537 | nvlist_free(rootprops); | |
1538 | nvlist_free(zplprops); | |
34dc7c2f | 1539 | nvlist_free(config); |
b128c09f | 1540 | nvlist_free(props); |
34dc7c2f BB |
1541 | |
1542 | return (error); | |
1543 | } | |
1544 | ||
1545 | static int | |
1546 | zfs_ioc_pool_destroy(zfs_cmd_t *zc) | |
1547 | { | |
1548 | int error; | |
1549 | zfs_log_history(zc); | |
1550 | error = spa_destroy(zc->zc_name); | |
428870ff BB |
1551 | if (error == 0) |
1552 | zvol_remove_minors(zc->zc_name); | |
34dc7c2f BB |
1553 | return (error); |
1554 | } | |
1555 | ||
1556 | static int | |
1557 | zfs_ioc_pool_import(zfs_cmd_t *zc) | |
1558 | { | |
34dc7c2f BB |
1559 | nvlist_t *config, *props = NULL; |
1560 | uint64_t guid; | |
428870ff | 1561 | int error; |
34dc7c2f BB |
1562 | |
1563 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1564 | zc->zc_iflags, &config)) != 0) |
34dc7c2f BB |
1565 | return (error); |
1566 | ||
1567 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1568 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1569 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1570 | nvlist_free(config); |
1571 | return (error); | |
1572 | } | |
1573 | ||
1574 | if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 || | |
1575 | guid != zc->zc_guid) | |
2e528b49 | 1576 | error = SET_ERROR(EINVAL); |
34dc7c2f | 1577 | else |
572e2857 | 1578 | error = spa_import(zc->zc_name, config, props, zc->zc_cookie); |
34dc7c2f | 1579 | |
572e2857 BB |
1580 | if (zc->zc_nvlist_dst != 0) { |
1581 | int err; | |
1582 | ||
1583 | if ((err = put_nvlist(zc, config)) != 0) | |
1584 | error = err; | |
1585 | } | |
428870ff | 1586 | |
34dc7c2f BB |
1587 | nvlist_free(config); |
1588 | ||
1589 | if (props) | |
1590 | nvlist_free(props); | |
1591 | ||
1592 | return (error); | |
1593 | } | |
1594 | ||
1595 | static int | |
1596 | zfs_ioc_pool_export(zfs_cmd_t *zc) | |
1597 | { | |
1598 | int error; | |
b128c09f | 1599 | boolean_t force = (boolean_t)zc->zc_cookie; |
fb5f0bc8 | 1600 | boolean_t hardforce = (boolean_t)zc->zc_guid; |
b128c09f | 1601 | |
34dc7c2f | 1602 | zfs_log_history(zc); |
fb5f0bc8 | 1603 | error = spa_export(zc->zc_name, NULL, force, hardforce); |
428870ff BB |
1604 | if (error == 0) |
1605 | zvol_remove_minors(zc->zc_name); | |
34dc7c2f BB |
1606 | return (error); |
1607 | } | |
1608 | ||
1609 | static int | |
1610 | zfs_ioc_pool_configs(zfs_cmd_t *zc) | |
1611 | { | |
1612 | nvlist_t *configs; | |
1613 | int error; | |
1614 | ||
1615 | if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL) | |
2e528b49 | 1616 | return (SET_ERROR(EEXIST)); |
34dc7c2f BB |
1617 | |
1618 | error = put_nvlist(zc, configs); | |
1619 | ||
1620 | nvlist_free(configs); | |
1621 | ||
1622 | return (error); | |
1623 | } | |
1624 | ||
9ae529ec CS |
1625 | /* |
1626 | * inputs: | |
1627 | * zc_name name of the pool | |
1628 | * | |
1629 | * outputs: | |
1630 | * zc_cookie real errno | |
1631 | * zc_nvlist_dst config nvlist | |
1632 | * zc_nvlist_dst_size size of config nvlist | |
1633 | */ | |
34dc7c2f BB |
1634 | static int |
1635 | zfs_ioc_pool_stats(zfs_cmd_t *zc) | |
1636 | { | |
1637 | nvlist_t *config; | |
1638 | int error; | |
1639 | int ret = 0; | |
1640 | ||
1641 | error = spa_get_stats(zc->zc_name, &config, zc->zc_value, | |
1642 | sizeof (zc->zc_value)); | |
1643 | ||
1644 | if (config != NULL) { | |
1645 | ret = put_nvlist(zc, config); | |
1646 | nvlist_free(config); | |
1647 | ||
1648 | /* | |
1649 | * The config may be present even if 'error' is non-zero. | |
1650 | * In this case we return success, and preserve the real errno | |
1651 | * in 'zc_cookie'. | |
1652 | */ | |
1653 | zc->zc_cookie = error; | |
1654 | } else { | |
1655 | ret = error; | |
1656 | } | |
1657 | ||
1658 | return (ret); | |
1659 | } | |
1660 | ||
1661 | /* | |
1662 | * Try to import the given pool, returning pool stats as appropriate so that | |
1663 | * user land knows which devices are available and overall pool health. | |
1664 | */ | |
1665 | static int | |
1666 | zfs_ioc_pool_tryimport(zfs_cmd_t *zc) | |
1667 | { | |
1668 | nvlist_t *tryconfig, *config; | |
1669 | int error; | |
1670 | ||
1671 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1672 | zc->zc_iflags, &tryconfig)) != 0) |
34dc7c2f BB |
1673 | return (error); |
1674 | ||
1675 | config = spa_tryimport(tryconfig); | |
1676 | ||
1677 | nvlist_free(tryconfig); | |
1678 | ||
1679 | if (config == NULL) | |
2e528b49 | 1680 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1681 | |
1682 | error = put_nvlist(zc, config); | |
1683 | nvlist_free(config); | |
1684 | ||
1685 | return (error); | |
1686 | } | |
1687 | ||
428870ff BB |
1688 | /* |
1689 | * inputs: | |
1690 | * zc_name name of the pool | |
1691 | * zc_cookie scan func (pool_scan_func_t) | |
1692 | */ | |
34dc7c2f | 1693 | static int |
428870ff | 1694 | zfs_ioc_pool_scan(zfs_cmd_t *zc) |
34dc7c2f BB |
1695 | { |
1696 | spa_t *spa; | |
1697 | int error; | |
1698 | ||
1699 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1700 | return (error); | |
1701 | ||
428870ff BB |
1702 | if (zc->zc_cookie == POOL_SCAN_NONE) |
1703 | error = spa_scan_stop(spa); | |
1704 | else | |
1705 | error = spa_scan(spa, zc->zc_cookie); | |
34dc7c2f BB |
1706 | |
1707 | spa_close(spa, FTAG); | |
1708 | ||
1709 | return (error); | |
1710 | } | |
1711 | ||
1712 | static int | |
1713 | zfs_ioc_pool_freeze(zfs_cmd_t *zc) | |
1714 | { | |
1715 | spa_t *spa; | |
1716 | int error; | |
1717 | ||
1718 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1719 | if (error == 0) { | |
1720 | spa_freeze(spa); | |
1721 | spa_close(spa, FTAG); | |
1722 | } | |
1723 | return (error); | |
1724 | } | |
1725 | ||
1726 | static int | |
1727 | zfs_ioc_pool_upgrade(zfs_cmd_t *zc) | |
1728 | { | |
1729 | spa_t *spa; | |
1730 | int error; | |
1731 | ||
1732 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1733 | return (error); | |
1734 | ||
9ae529ec CS |
1735 | if (zc->zc_cookie < spa_version(spa) || |
1736 | !SPA_VERSION_IS_SUPPORTED(zc->zc_cookie)) { | |
34dc7c2f | 1737 | spa_close(spa, FTAG); |
2e528b49 | 1738 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1739 | } |
1740 | ||
1741 | spa_upgrade(spa, zc->zc_cookie); | |
1742 | spa_close(spa, FTAG); | |
1743 | ||
1744 | return (error); | |
1745 | } | |
1746 | ||
1747 | static int | |
1748 | zfs_ioc_pool_get_history(zfs_cmd_t *zc) | |
1749 | { | |
1750 | spa_t *spa; | |
1751 | char *hist_buf; | |
1752 | uint64_t size; | |
1753 | int error; | |
1754 | ||
1755 | if ((size = zc->zc_history_len) == 0) | |
2e528b49 | 1756 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1757 | |
1758 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1759 | return (error); | |
1760 | ||
1761 | if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { | |
1762 | spa_close(spa, FTAG); | |
2e528b49 | 1763 | return (SET_ERROR(ENOTSUP)); |
34dc7c2f BB |
1764 | } |
1765 | ||
34b84cb8 | 1766 | hist_buf = vmem_alloc(size, KM_SLEEP); |
34dc7c2f BB |
1767 | if ((error = spa_history_get(spa, &zc->zc_history_offset, |
1768 | &zc->zc_history_len, hist_buf)) == 0) { | |
9babb374 BB |
1769 | error = ddi_copyout(hist_buf, |
1770 | (void *)(uintptr_t)zc->zc_history, | |
1771 | zc->zc_history_len, zc->zc_iflags); | |
34dc7c2f BB |
1772 | } |
1773 | ||
1774 | spa_close(spa, FTAG); | |
34b84cb8 | 1775 | vmem_free(hist_buf, size); |
34dc7c2f BB |
1776 | return (error); |
1777 | } | |
1778 | ||
3541dc6d GA |
1779 | static int |
1780 | zfs_ioc_pool_reguid(zfs_cmd_t *zc) | |
1781 | { | |
1782 | spa_t *spa; | |
1783 | int error; | |
1784 | ||
1785 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1786 | if (error == 0) { | |
1787 | error = spa_change_guid(spa); | |
1788 | spa_close(spa, FTAG); | |
1789 | } | |
1790 | return (error); | |
1791 | } | |
1792 | ||
34dc7c2f BB |
1793 | static int |
1794 | zfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc) | |
1795 | { | |
13fe0198 | 1796 | return (dsl_dsobj_to_dsname(zc->zc_name, zc->zc_obj, zc->zc_value)); |
34dc7c2f BB |
1797 | } |
1798 | ||
428870ff BB |
1799 | /* |
1800 | * inputs: | |
1801 | * zc_name name of filesystem | |
1802 | * zc_obj object to find | |
1803 | * | |
1804 | * outputs: | |
1805 | * zc_value name of object | |
1806 | */ | |
34dc7c2f BB |
1807 | static int |
1808 | zfs_ioc_obj_to_path(zfs_cmd_t *zc) | |
1809 | { | |
428870ff | 1810 | objset_t *os; |
34dc7c2f BB |
1811 | int error; |
1812 | ||
428870ff BB |
1813 | /* XXX reading from objset not owned */ |
1814 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) | |
34dc7c2f | 1815 | return (error); |
428870ff BB |
1816 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
1817 | dmu_objset_rele(os, FTAG); | |
2e528b49 | 1818 | return (SET_ERROR(EINVAL)); |
428870ff BB |
1819 | } |
1820 | error = zfs_obj_to_path(os, zc->zc_obj, zc->zc_value, | |
34dc7c2f | 1821 | sizeof (zc->zc_value)); |
428870ff | 1822 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
1823 | |
1824 | return (error); | |
1825 | } | |
1826 | ||
572e2857 BB |
1827 | /* |
1828 | * inputs: | |
1829 | * zc_name name of filesystem | |
1830 | * zc_obj object to find | |
1831 | * | |
1832 | * outputs: | |
1833 | * zc_stat stats on object | |
1834 | * zc_value path to object | |
1835 | */ | |
1836 | static int | |
1837 | zfs_ioc_obj_to_stats(zfs_cmd_t *zc) | |
1838 | { | |
1839 | objset_t *os; | |
1840 | int error; | |
1841 | ||
1842 | /* XXX reading from objset not owned */ | |
1843 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) | |
1844 | return (error); | |
1845 | if (dmu_objset_type(os) != DMU_OST_ZFS) { | |
1846 | dmu_objset_rele(os, FTAG); | |
2e528b49 | 1847 | return (SET_ERROR(EINVAL)); |
572e2857 BB |
1848 | } |
1849 | error = zfs_obj_to_stats(os, zc->zc_obj, &zc->zc_stat, zc->zc_value, | |
1850 | sizeof (zc->zc_value)); | |
1851 | dmu_objset_rele(os, FTAG); | |
1852 | ||
1853 | return (error); | |
1854 | } | |
1855 | ||
34dc7c2f BB |
1856 | static int |
1857 | zfs_ioc_vdev_add(zfs_cmd_t *zc) | |
1858 | { | |
1859 | spa_t *spa; | |
1860 | int error; | |
64ad2b26 | 1861 | nvlist_t *config; |
34dc7c2f BB |
1862 | |
1863 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1864 | if (error != 0) | |
1865 | return (error); | |
1866 | ||
1867 | error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1868 | zc->zc_iflags, &config); |
34dc7c2f BB |
1869 | if (error == 0) { |
1870 | error = spa_vdev_add(spa, config); | |
1871 | nvlist_free(config); | |
1872 | } | |
1873 | spa_close(spa, FTAG); | |
1874 | return (error); | |
1875 | } | |
1876 | ||
428870ff BB |
1877 | /* |
1878 | * inputs: | |
1879 | * zc_name name of the pool | |
1880 | * zc_nvlist_conf nvlist of devices to remove | |
1881 | * zc_cookie to stop the remove? | |
1882 | */ | |
34dc7c2f BB |
1883 | static int |
1884 | zfs_ioc_vdev_remove(zfs_cmd_t *zc) | |
1885 | { | |
1886 | spa_t *spa; | |
1887 | int error; | |
1888 | ||
1889 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1890 | if (error != 0) | |
1891 | return (error); | |
1892 | error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE); | |
1893 | spa_close(spa, FTAG); | |
1894 | return (error); | |
1895 | } | |
1896 | ||
1897 | static int | |
1898 | zfs_ioc_vdev_set_state(zfs_cmd_t *zc) | |
1899 | { | |
1900 | spa_t *spa; | |
1901 | int error; | |
1902 | vdev_state_t newstate = VDEV_STATE_UNKNOWN; | |
1903 | ||
1904 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1905 | return (error); | |
1906 | switch (zc->zc_cookie) { | |
1907 | case VDEV_STATE_ONLINE: | |
1908 | error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate); | |
1909 | break; | |
1910 | ||
1911 | case VDEV_STATE_OFFLINE: | |
1912 | error = vdev_offline(spa, zc->zc_guid, zc->zc_obj); | |
1913 | break; | |
1914 | ||
1915 | case VDEV_STATE_FAULTED: | |
428870ff BB |
1916 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
1917 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
1918 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
1919 | ||
1920 | error = vdev_fault(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1921 | break; |
1922 | ||
1923 | case VDEV_STATE_DEGRADED: | |
428870ff BB |
1924 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
1925 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
1926 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
1927 | ||
1928 | error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1929 | break; |
1930 | ||
1931 | default: | |
2e528b49 | 1932 | error = SET_ERROR(EINVAL); |
34dc7c2f BB |
1933 | } |
1934 | zc->zc_cookie = newstate; | |
1935 | spa_close(spa, FTAG); | |
1936 | return (error); | |
1937 | } | |
1938 | ||
1939 | static int | |
1940 | zfs_ioc_vdev_attach(zfs_cmd_t *zc) | |
1941 | { | |
1942 | spa_t *spa; | |
1943 | int replacing = zc->zc_cookie; | |
1944 | nvlist_t *config; | |
1945 | int error; | |
1946 | ||
1947 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1948 | return (error); | |
1949 | ||
1950 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1951 | zc->zc_iflags, &config)) == 0) { |
34dc7c2f BB |
1952 | error = spa_vdev_attach(spa, zc->zc_guid, config, replacing); |
1953 | nvlist_free(config); | |
1954 | } | |
1955 | ||
1956 | spa_close(spa, FTAG); | |
1957 | return (error); | |
1958 | } | |
1959 | ||
1960 | static int | |
1961 | zfs_ioc_vdev_detach(zfs_cmd_t *zc) | |
1962 | { | |
1963 | spa_t *spa; | |
1964 | int error; | |
1965 | ||
1966 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1967 | return (error); | |
1968 | ||
fb5f0bc8 | 1969 | error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE); |
34dc7c2f BB |
1970 | |
1971 | spa_close(spa, FTAG); | |
1972 | return (error); | |
1973 | } | |
1974 | ||
428870ff BB |
1975 | static int |
1976 | zfs_ioc_vdev_split(zfs_cmd_t *zc) | |
1977 | { | |
1978 | spa_t *spa; | |
1979 | nvlist_t *config, *props = NULL; | |
1980 | int error; | |
1981 | boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT); | |
1982 | ||
1983 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1984 | return (error); | |
1985 | ||
c65aa5b2 BB |
1986 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, |
1987 | zc->zc_iflags, &config))) { | |
428870ff BB |
1988 | spa_close(spa, FTAG); |
1989 | return (error); | |
1990 | } | |
1991 | ||
1992 | if (zc->zc_nvlist_src_size != 0 && (error = | |
1993 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
1994 | zc->zc_iflags, &props))) { | |
1995 | spa_close(spa, FTAG); | |
1996 | nvlist_free(config); | |
1997 | return (error); | |
1998 | } | |
1999 | ||
2000 | error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp); | |
2001 | ||
2002 | spa_close(spa, FTAG); | |
2003 | ||
2004 | nvlist_free(config); | |
2005 | nvlist_free(props); | |
2006 | ||
2007 | return (error); | |
2008 | } | |
2009 | ||
34dc7c2f BB |
2010 | static int |
2011 | zfs_ioc_vdev_setpath(zfs_cmd_t *zc) | |
2012 | { | |
2013 | spa_t *spa; | |
2014 | char *path = zc->zc_value; | |
2015 | uint64_t guid = zc->zc_guid; | |
2016 | int error; | |
2017 | ||
2018 | error = spa_open(zc->zc_name, &spa, FTAG); | |
2019 | if (error != 0) | |
2020 | return (error); | |
2021 | ||
2022 | error = spa_vdev_setpath(spa, guid, path); | |
2023 | spa_close(spa, FTAG); | |
2024 | return (error); | |
2025 | } | |
2026 | ||
9babb374 BB |
2027 | static int |
2028 | zfs_ioc_vdev_setfru(zfs_cmd_t *zc) | |
2029 | { | |
2030 | spa_t *spa; | |
2031 | char *fru = zc->zc_value; | |
2032 | uint64_t guid = zc->zc_guid; | |
2033 | int error; | |
2034 | ||
2035 | error = spa_open(zc->zc_name, &spa, FTAG); | |
2036 | if (error != 0) | |
2037 | return (error); | |
2038 | ||
2039 | error = spa_vdev_setfru(spa, guid, fru); | |
2040 | spa_close(spa, FTAG); | |
2041 | return (error); | |
2042 | } | |
2043 | ||
34dc7c2f | 2044 | static int |
572e2857 | 2045 | zfs_ioc_objset_stats_impl(zfs_cmd_t *zc, objset_t *os) |
34dc7c2f | 2046 | { |
572e2857 | 2047 | int error = 0; |
34dc7c2f BB |
2048 | nvlist_t *nv; |
2049 | ||
34dc7c2f BB |
2050 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); |
2051 | ||
2052 | if (zc->zc_nvlist_dst != 0 && | |
428870ff | 2053 | (error = dsl_prop_get_all(os, &nv)) == 0) { |
34dc7c2f BB |
2054 | dmu_objset_stats(os, nv); |
2055 | /* | |
2056 | * NB: zvol_get_stats() will read the objset contents, | |
2057 | * which we aren't supposed to do with a | |
b128c09f | 2058 | * DS_MODE_USER hold, because it could be |
34dc7c2f | 2059 | * inconsistent. So this is a bit of a workaround... |
428870ff | 2060 | * XXX reading with out owning |
34dc7c2f | 2061 | */ |
330d06f9 MA |
2062 | if (!zc->zc_objset_stats.dds_inconsistent && |
2063 | dmu_objset_type(os) == DMU_OST_ZVOL) { | |
2064 | error = zvol_get_stats(os, nv); | |
2065 | if (error == EIO) | |
2066 | return (error); | |
c99c9001 | 2067 | VERIFY0(error); |
34dc7c2f | 2068 | } |
8a8f5c6b BB |
2069 | if (error == 0) |
2070 | error = put_nvlist(zc, nv); | |
34dc7c2f BB |
2071 | nvlist_free(nv); |
2072 | } | |
2073 | ||
572e2857 BB |
2074 | return (error); |
2075 | } | |
2076 | ||
2077 | /* | |
2078 | * inputs: | |
2079 | * zc_name name of filesystem | |
2080 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2081 | * | |
2082 | * outputs: | |
2083 | * zc_objset_stats stats | |
2084 | * zc_nvlist_dst property nvlist | |
2085 | * zc_nvlist_dst_size size of property nvlist | |
2086 | */ | |
2087 | static int | |
2088 | zfs_ioc_objset_stats(zfs_cmd_t *zc) | |
2089 | { | |
13fe0198 | 2090 | objset_t *os; |
572e2857 BB |
2091 | int error; |
2092 | ||
13fe0198 MA |
2093 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); |
2094 | if (error == 0) { | |
2095 | error = zfs_ioc_objset_stats_impl(zc, os); | |
2096 | dmu_objset_rele(os, FTAG); | |
2097 | } | |
572e2857 | 2098 | |
428870ff BB |
2099 | return (error); |
2100 | } | |
2101 | ||
2102 | /* | |
2103 | * inputs: | |
2104 | * zc_name name of filesystem | |
2105 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2106 | * | |
2107 | * outputs: | |
2108 | * zc_nvlist_dst received property nvlist | |
2109 | * zc_nvlist_dst_size size of received property nvlist | |
2110 | * | |
2111 | * Gets received properties (distinct from local properties on or after | |
2112 | * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from | |
2113 | * local property values. | |
2114 | */ | |
2115 | static int | |
26685276 | 2116 | zfs_ioc_objset_recvd_props(zfs_cmd_t *zc) |
428870ff | 2117 | { |
13fe0198 | 2118 | int error = 0; |
428870ff BB |
2119 | nvlist_t *nv; |
2120 | ||
428870ff BB |
2121 | /* |
2122 | * Without this check, we would return local property values if the | |
2123 | * caller has not already received properties on or after | |
2124 | * SPA_VERSION_RECVD_PROPS. | |
2125 | */ | |
13fe0198 | 2126 | if (!dsl_prop_get_hasrecvd(zc->zc_name)) |
2e528b49 | 2127 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
2128 | |
2129 | if (zc->zc_nvlist_dst != 0 && | |
13fe0198 | 2130 | (error = dsl_prop_get_received(zc->zc_name, &nv)) == 0) { |
428870ff BB |
2131 | error = put_nvlist(zc, nv); |
2132 | nvlist_free(nv); | |
2133 | } | |
2134 | ||
34dc7c2f BB |
2135 | return (error); |
2136 | } | |
2137 | ||
2138 | static int | |
2139 | nvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop) | |
2140 | { | |
2141 | uint64_t value; | |
2142 | int error; | |
2143 | ||
2144 | /* | |
2145 | * zfs_get_zplprop() will either find a value or give us | |
2146 | * the default value (if there is one). | |
2147 | */ | |
2148 | if ((error = zfs_get_zplprop(os, prop, &value)) != 0) | |
2149 | return (error); | |
2150 | VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0); | |
2151 | return (0); | |
2152 | } | |
2153 | ||
2154 | /* | |
2155 | * inputs: | |
2156 | * zc_name name of filesystem | |
2157 | * zc_nvlist_dst_size size of buffer for zpl property nvlist | |
2158 | * | |
2159 | * outputs: | |
2160 | * zc_nvlist_dst zpl property nvlist | |
2161 | * zc_nvlist_dst_size size of zpl property nvlist | |
2162 | */ | |
2163 | static int | |
2164 | zfs_ioc_objset_zplprops(zfs_cmd_t *zc) | |
2165 | { | |
2166 | objset_t *os; | |
2167 | int err; | |
2168 | ||
428870ff | 2169 | /* XXX reading without owning */ |
c65aa5b2 | 2170 | if ((err = dmu_objset_hold(zc->zc_name, FTAG, &os))) |
34dc7c2f BB |
2171 | return (err); |
2172 | ||
2173 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); | |
2174 | ||
2175 | /* | |
2176 | * NB: nvl_add_zplprop() will read the objset contents, | |
b128c09f BB |
2177 | * which we aren't supposed to do with a DS_MODE_USER |
2178 | * hold, because it could be inconsistent. | |
34dc7c2f | 2179 | */ |
b8864a23 | 2180 | if (zc->zc_nvlist_dst != 0 && |
34dc7c2f BB |
2181 | !zc->zc_objset_stats.dds_inconsistent && |
2182 | dmu_objset_type(os) == DMU_OST_ZFS) { | |
2183 | nvlist_t *nv; | |
2184 | ||
2185 | VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2186 | if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 && | |
2187 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 && | |
2188 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 && | |
2189 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0) | |
2190 | err = put_nvlist(zc, nv); | |
2191 | nvlist_free(nv); | |
2192 | } else { | |
2e528b49 | 2193 | err = SET_ERROR(ENOENT); |
34dc7c2f | 2194 | } |
428870ff | 2195 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
2196 | return (err); |
2197 | } | |
2198 | ||
ba6a2402 | 2199 | boolean_t |
9babb374 BB |
2200 | dataset_name_hidden(const char *name) |
2201 | { | |
2202 | /* | |
2203 | * Skip over datasets that are not visible in this zone, | |
2204 | * internal datasets (which have a $ in their name), and | |
2205 | * temporary datasets (which have a % in their name). | |
2206 | */ | |
2207 | if (strchr(name, '$') != NULL) | |
2208 | return (B_TRUE); | |
2209 | if (strchr(name, '%') != NULL) | |
2210 | return (B_TRUE); | |
2211 | if (!INGLOBALZONE(curproc) && !zone_dataset_visible(name, NULL)) | |
2212 | return (B_TRUE); | |
2213 | return (B_FALSE); | |
2214 | } | |
2215 | ||
34dc7c2f BB |
2216 | /* |
2217 | * inputs: | |
2218 | * zc_name name of filesystem | |
2219 | * zc_cookie zap cursor | |
2220 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2221 | * | |
2222 | * outputs: | |
2223 | * zc_name name of next filesystem | |
9babb374 | 2224 | * zc_cookie zap cursor |
34dc7c2f BB |
2225 | * zc_objset_stats stats |
2226 | * zc_nvlist_dst property nvlist | |
2227 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
2228 | */ |
2229 | static int | |
2230 | zfs_ioc_dataset_list_next(zfs_cmd_t *zc) | |
2231 | { | |
2232 | objset_t *os; | |
2233 | int error; | |
2234 | char *p; | |
428870ff | 2235 | size_t orig_len = strlen(zc->zc_name); |
34dc7c2f | 2236 | |
428870ff | 2237 | top: |
c65aa5b2 | 2238 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os))) { |
34dc7c2f | 2239 | if (error == ENOENT) |
2e528b49 | 2240 | error = SET_ERROR(ESRCH); |
34dc7c2f BB |
2241 | return (error); |
2242 | } | |
2243 | ||
2244 | p = strrchr(zc->zc_name, '/'); | |
2245 | if (p == NULL || p[1] != '\0') | |
2246 | (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name)); | |
2247 | p = zc->zc_name + strlen(zc->zc_name); | |
2248 | ||
2249 | do { | |
2250 | error = dmu_dir_list_next(os, | |
2251 | sizeof (zc->zc_name) - (p - zc->zc_name), p, | |
2252 | NULL, &zc->zc_cookie); | |
2253 | if (error == ENOENT) | |
2e528b49 | 2254 | error = SET_ERROR(ESRCH); |
330d06f9 | 2255 | } while (error == 0 && dataset_name_hidden(zc->zc_name)); |
428870ff | 2256 | dmu_objset_rele(os, FTAG); |
34dc7c2f | 2257 | |
428870ff BB |
2258 | /* |
2259 | * If it's an internal dataset (ie. with a '$' in its name), | |
2260 | * don't try to get stats for it, otherwise we'll return ENOENT. | |
2261 | */ | |
2262 | if (error == 0 && strchr(zc->zc_name, '$') == NULL) { | |
34dc7c2f | 2263 | error = zfs_ioc_objset_stats(zc); /* fill in the stats */ |
428870ff BB |
2264 | if (error == ENOENT) { |
2265 | /* We lost a race with destroy, get the next one. */ | |
2266 | zc->zc_name[orig_len] = '\0'; | |
2267 | goto top; | |
2268 | } | |
2269 | } | |
34dc7c2f BB |
2270 | return (error); |
2271 | } | |
2272 | ||
2273 | /* | |
2274 | * inputs: | |
2275 | * zc_name name of filesystem | |
2276 | * zc_cookie zap cursor | |
2277 | * zc_nvlist_dst_size size of buffer for property nvlist | |
2278 | * | |
2279 | * outputs: | |
2280 | * zc_name name of next snapshot | |
2281 | * zc_objset_stats stats | |
2282 | * zc_nvlist_dst property nvlist | |
2283 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
2284 | */ |
2285 | static int | |
2286 | zfs_ioc_snapshot_list_next(zfs_cmd_t *zc) | |
2287 | { | |
2288 | objset_t *os; | |
2289 | int error; | |
2290 | ||
428870ff | 2291 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); |
13fe0198 | 2292 | if (error != 0) { |
b128c09f | 2293 | return (error == ENOENT ? ESRCH : error); |
13fe0198 | 2294 | } |
34dc7c2f BB |
2295 | |
2296 | /* | |
2297 | * A dataset name of maximum length cannot have any snapshots, | |
2298 | * so exit immediately. | |
2299 | */ | |
2300 | if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= MAXNAMELEN) { | |
428870ff | 2301 | dmu_objset_rele(os, FTAG); |
2e528b49 | 2302 | return (SET_ERROR(ESRCH)); |
34dc7c2f BB |
2303 | } |
2304 | ||
2305 | error = dmu_snapshot_list_next(os, | |
2306 | sizeof (zc->zc_name) - strlen(zc->zc_name), | |
572e2857 BB |
2307 | zc->zc_name + strlen(zc->zc_name), &zc->zc_obj, &zc->zc_cookie, |
2308 | NULL); | |
2309 | ||
0cee2406 | 2310 | if (error == 0 && !zc->zc_simple) { |
572e2857 BB |
2311 | dsl_dataset_t *ds; |
2312 | dsl_pool_t *dp = os->os_dsl_dataset->ds_dir->dd_pool; | |
2313 | ||
572e2857 | 2314 | error = dsl_dataset_hold_obj(dp, zc->zc_obj, FTAG, &ds); |
13fe0198 | 2315 | if (error == 0) { |
572e2857 BB |
2316 | objset_t *ossnap; |
2317 | ||
2318 | error = dmu_objset_from_ds(ds, &ossnap); | |
2319 | if (error == 0) | |
2320 | error = zfs_ioc_objset_stats_impl(zc, ossnap); | |
2321 | dsl_dataset_rele(ds, FTAG); | |
428870ff BB |
2322 | } |
2323 | } else if (error == ENOENT) { | |
2e528b49 | 2324 | error = SET_ERROR(ESRCH); |
428870ff | 2325 | } |
34dc7c2f | 2326 | |
572e2857 | 2327 | dmu_objset_rele(os, FTAG); |
34dc7c2f | 2328 | /* if we failed, undo the @ that we tacked on to zc_name */ |
13fe0198 | 2329 | if (error != 0) |
34dc7c2f | 2330 | *strchr(zc->zc_name, '@') = '\0'; |
34dc7c2f BB |
2331 | return (error); |
2332 | } | |
2333 | ||
428870ff BB |
2334 | static int |
2335 | zfs_prop_set_userquota(const char *dsname, nvpair_t *pair) | |
34dc7c2f | 2336 | { |
428870ff BB |
2337 | const char *propname = nvpair_name(pair); |
2338 | uint64_t *valary; | |
2339 | unsigned int vallen; | |
2340 | const char *domain; | |
2341 | char *dash; | |
2342 | zfs_userquota_prop_t type; | |
2343 | uint64_t rid; | |
2344 | uint64_t quota; | |
3558fd73 | 2345 | zfs_sb_t *zsb; |
428870ff BB |
2346 | int err; |
2347 | ||
2348 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2349 | nvlist_t *attrs; | |
2350 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2351 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2352 | &pair) != 0) | |
2e528b49 | 2353 | return (SET_ERROR(EINVAL)); |
428870ff | 2354 | } |
34dc7c2f BB |
2355 | |
2356 | /* | |
428870ff BB |
2357 | * A correctly constructed propname is encoded as |
2358 | * userquota@<rid>-<domain>. | |
34dc7c2f | 2359 | */ |
428870ff BB |
2360 | if ((dash = strchr(propname, '-')) == NULL || |
2361 | nvpair_value_uint64_array(pair, &valary, &vallen) != 0 || | |
2362 | vallen != 3) | |
2e528b49 | 2363 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 2364 | |
428870ff BB |
2365 | domain = dash + 1; |
2366 | type = valary[0]; | |
2367 | rid = valary[1]; | |
2368 | quota = valary[2]; | |
34dc7c2f | 2369 | |
3558fd73 | 2370 | err = zfs_sb_hold(dsname, FTAG, &zsb, B_FALSE); |
428870ff | 2371 | if (err == 0) { |
3558fd73 BB |
2372 | err = zfs_set_userquota(zsb, type, domain, rid, quota); |
2373 | zfs_sb_rele(zsb, FTAG); | |
428870ff | 2374 | } |
9babb374 | 2375 | |
428870ff BB |
2376 | return (err); |
2377 | } | |
34dc7c2f | 2378 | |
428870ff BB |
2379 | /* |
2380 | * If the named property is one that has a special function to set its value, | |
2381 | * return 0 on success and a positive error code on failure; otherwise if it is | |
2382 | * not one of the special properties handled by this function, return -1. | |
2383 | * | |
2384 | * XXX: It would be better for callers of the property interface if we handled | |
2385 | * these special cases in dsl_prop.c (in the dsl layer). | |
2386 | */ | |
2387 | static int | |
2388 | zfs_prop_set_special(const char *dsname, zprop_source_t source, | |
2389 | nvpair_t *pair) | |
2390 | { | |
2391 | const char *propname = nvpair_name(pair); | |
2392 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2393 | uint64_t intval; | |
2394 | int err; | |
9babb374 | 2395 | |
428870ff BB |
2396 | if (prop == ZPROP_INVAL) { |
2397 | if (zfs_prop_userquota(propname)) | |
2398 | return (zfs_prop_set_userquota(dsname, pair)); | |
2399 | return (-1); | |
2400 | } | |
34dc7c2f | 2401 | |
428870ff BB |
2402 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { |
2403 | nvlist_t *attrs; | |
2404 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2405 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2406 | &pair) == 0); | |
2407 | } | |
b128c09f | 2408 | |
428870ff BB |
2409 | if (zfs_prop_get_type(prop) == PROP_TYPE_STRING) |
2410 | return (-1); | |
34dc7c2f | 2411 | |
428870ff | 2412 | VERIFY(0 == nvpair_value_uint64(pair, &intval)); |
34dc7c2f | 2413 | |
428870ff BB |
2414 | switch (prop) { |
2415 | case ZFS_PROP_QUOTA: | |
2416 | err = dsl_dir_set_quota(dsname, source, intval); | |
2417 | break; | |
2418 | case ZFS_PROP_REFQUOTA: | |
13fe0198 | 2419 | err = dsl_dataset_set_refquota(dsname, source, intval); |
428870ff BB |
2420 | break; |
2421 | case ZFS_PROP_RESERVATION: | |
2422 | err = dsl_dir_set_reservation(dsname, source, intval); | |
2423 | break; | |
2424 | case ZFS_PROP_REFRESERVATION: | |
13fe0198 | 2425 | err = dsl_dataset_set_refreservation(dsname, source, intval); |
428870ff BB |
2426 | break; |
2427 | case ZFS_PROP_VOLSIZE: | |
60101509 | 2428 | err = zvol_set_volsize(dsname, intval); |
428870ff | 2429 | break; |
0b4d1b58 ED |
2430 | case ZFS_PROP_SNAPDEV: |
2431 | err = zvol_set_snapdev(dsname, intval); | |
2432 | break; | |
428870ff BB |
2433 | case ZFS_PROP_VERSION: |
2434 | { | |
3558fd73 | 2435 | zfs_sb_t *zsb; |
428870ff | 2436 | |
3558fd73 | 2437 | if ((err = zfs_sb_hold(dsname, FTAG, &zsb, B_TRUE)) != 0) |
34dc7c2f | 2438 | break; |
b128c09f | 2439 | |
3558fd73 BB |
2440 | err = zfs_set_version(zsb, intval); |
2441 | zfs_sb_rele(zsb, FTAG); | |
34dc7c2f | 2442 | |
428870ff BB |
2443 | if (err == 0 && intval >= ZPL_VERSION_USERSPACE) { |
2444 | zfs_cmd_t *zc; | |
34dc7c2f | 2445 | |
efcd79a8 | 2446 | zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); |
428870ff BB |
2447 | (void) strcpy(zc->zc_name, dsname); |
2448 | (void) zfs_ioc_userspace_upgrade(zc); | |
2449 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
34dc7c2f | 2450 | } |
428870ff BB |
2451 | break; |
2452 | } | |
428870ff BB |
2453 | default: |
2454 | err = -1; | |
2455 | } | |
34dc7c2f | 2456 | |
428870ff BB |
2457 | return (err); |
2458 | } | |
34dc7c2f | 2459 | |
428870ff BB |
2460 | /* |
2461 | * This function is best effort. If it fails to set any of the given properties, | |
6f1ffb06 MA |
2462 | * it continues to set as many as it can and returns the last error |
2463 | * encountered. If the caller provides a non-NULL errlist, it will be filled in | |
2464 | * with the list of names of all the properties that failed along with the | |
2465 | * corresponding error numbers. | |
428870ff | 2466 | * |
6f1ffb06 MA |
2467 | * If every property is set successfully, zero is returned and errlist is not |
2468 | * modified. | |
428870ff BB |
2469 | */ |
2470 | int | |
2471 | zfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl, | |
6f1ffb06 | 2472 | nvlist_t *errlist) |
428870ff BB |
2473 | { |
2474 | nvpair_t *pair; | |
2475 | nvpair_t *propval; | |
2476 | int rv = 0; | |
2477 | uint64_t intval; | |
2478 | char *strval; | |
34dc7c2f | 2479 | |
6f1ffb06 MA |
2480 | nvlist_t *genericnvl = fnvlist_alloc(); |
2481 | nvlist_t *retrynvl = fnvlist_alloc(); | |
428870ff BB |
2482 | retry: |
2483 | pair = NULL; | |
2484 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { | |
2485 | const char *propname = nvpair_name(pair); | |
2486 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2487 | int err = 0; | |
2488 | ||
2489 | /* decode the property value */ | |
2490 | propval = pair; | |
2491 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2492 | nvlist_t *attrs; | |
6f1ffb06 | 2493 | attrs = fnvpair_value_nvlist(pair); |
428870ff BB |
2494 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, |
2495 | &propval) != 0) | |
2e528b49 | 2496 | err = SET_ERROR(EINVAL); |
9babb374 | 2497 | } |
34dc7c2f | 2498 | |
428870ff BB |
2499 | /* Validate value type */ |
2500 | if (err == 0 && prop == ZPROP_INVAL) { | |
2501 | if (zfs_prop_user(propname)) { | |
2502 | if (nvpair_type(propval) != DATA_TYPE_STRING) | |
2e528b49 | 2503 | err = SET_ERROR(EINVAL); |
428870ff BB |
2504 | } else if (zfs_prop_userquota(propname)) { |
2505 | if (nvpair_type(propval) != | |
2506 | DATA_TYPE_UINT64_ARRAY) | |
2e528b49 | 2507 | err = SET_ERROR(EINVAL); |
330d06f9 | 2508 | } else { |
2e528b49 | 2509 | err = SET_ERROR(EINVAL); |
428870ff BB |
2510 | } |
2511 | } else if (err == 0) { | |
2512 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
2513 | if (zfs_prop_get_type(prop) != PROP_TYPE_STRING) | |
2e528b49 | 2514 | err = SET_ERROR(EINVAL); |
428870ff | 2515 | } else if (nvpair_type(propval) == DATA_TYPE_UINT64) { |
34dc7c2f BB |
2516 | const char *unused; |
2517 | ||
6f1ffb06 | 2518 | intval = fnvpair_value_uint64(propval); |
34dc7c2f BB |
2519 | |
2520 | switch (zfs_prop_get_type(prop)) { | |
2521 | case PROP_TYPE_NUMBER: | |
2522 | break; | |
2523 | case PROP_TYPE_STRING: | |
2e528b49 | 2524 | err = SET_ERROR(EINVAL); |
428870ff | 2525 | break; |
34dc7c2f BB |
2526 | case PROP_TYPE_INDEX: |
2527 | if (zfs_prop_index_to_string(prop, | |
428870ff | 2528 | intval, &unused) != 0) |
2e528b49 | 2529 | err = SET_ERROR(EINVAL); |
34dc7c2f BB |
2530 | break; |
2531 | default: | |
2532 | cmn_err(CE_PANIC, | |
2533 | "unknown property type"); | |
34dc7c2f | 2534 | } |
34dc7c2f | 2535 | } else { |
2e528b49 | 2536 | err = SET_ERROR(EINVAL); |
34dc7c2f | 2537 | } |
34dc7c2f | 2538 | } |
428870ff BB |
2539 | |
2540 | /* Validate permissions */ | |
2541 | if (err == 0) | |
2542 | err = zfs_check_settable(dsname, pair, CRED()); | |
2543 | ||
2544 | if (err == 0) { | |
2545 | err = zfs_prop_set_special(dsname, source, pair); | |
2546 | if (err == -1) { | |
2547 | /* | |
2548 | * For better performance we build up a list of | |
2549 | * properties to set in a single transaction. | |
2550 | */ | |
2551 | err = nvlist_add_nvpair(genericnvl, pair); | |
2552 | } else if (err != 0 && nvl != retrynvl) { | |
2553 | /* | |
2554 | * This may be a spurious error caused by | |
2555 | * receiving quota and reservation out of order. | |
2556 | * Try again in a second pass. | |
2557 | */ | |
2558 | err = nvlist_add_nvpair(retrynvl, pair); | |
2559 | } | |
2560 | } | |
2561 | ||
6f1ffb06 MA |
2562 | if (err != 0) { |
2563 | if (errlist != NULL) | |
2564 | fnvlist_add_int32(errlist, propname, err); | |
2565 | rv = err; | |
2566 | } | |
34dc7c2f BB |
2567 | } |
2568 | ||
428870ff BB |
2569 | if (nvl != retrynvl && !nvlist_empty(retrynvl)) { |
2570 | nvl = retrynvl; | |
2571 | goto retry; | |
2572 | } | |
2573 | ||
2574 | if (!nvlist_empty(genericnvl) && | |
2575 | dsl_props_set(dsname, source, genericnvl) != 0) { | |
2576 | /* | |
2577 | * If this fails, we still want to set as many properties as we | |
2578 | * can, so try setting them individually. | |
2579 | */ | |
2580 | pair = NULL; | |
2581 | while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) { | |
2582 | const char *propname = nvpair_name(pair); | |
2583 | int err = 0; | |
2584 | ||
2585 | propval = pair; | |
2586 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2587 | nvlist_t *attrs; | |
6f1ffb06 MA |
2588 | attrs = fnvpair_value_nvlist(pair); |
2589 | propval = fnvlist_lookup_nvpair(attrs, | |
2590 | ZPROP_VALUE); | |
428870ff BB |
2591 | } |
2592 | ||
2593 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
6f1ffb06 | 2594 | strval = fnvpair_value_string(propval); |
13fe0198 MA |
2595 | err = dsl_prop_set_string(dsname, propname, |
2596 | source, strval); | |
428870ff | 2597 | } else { |
6f1ffb06 | 2598 | intval = fnvpair_value_uint64(propval); |
13fe0198 MA |
2599 | err = dsl_prop_set_int(dsname, propname, source, |
2600 | intval); | |
428870ff BB |
2601 | } |
2602 | ||
2603 | if (err != 0) { | |
6f1ffb06 MA |
2604 | if (errlist != NULL) { |
2605 | fnvlist_add_int32(errlist, propname, | |
2606 | err); | |
2607 | } | |
2608 | rv = err; | |
428870ff BB |
2609 | } |
2610 | } | |
9babb374 | 2611 | } |
9babb374 | 2612 | nvlist_free(genericnvl); |
428870ff BB |
2613 | nvlist_free(retrynvl); |
2614 | ||
428870ff | 2615 | return (rv); |
9babb374 BB |
2616 | } |
2617 | ||
2618 | /* | |
2619 | * Check that all the properties are valid user properties. | |
2620 | */ | |
2621 | static int | |
6f1ffb06 | 2622 | zfs_check_userprops(const char *fsname, nvlist_t *nvl) |
9babb374 | 2623 | { |
428870ff | 2624 | nvpair_t *pair = NULL; |
9babb374 BB |
2625 | int error = 0; |
2626 | ||
428870ff BB |
2627 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { |
2628 | const char *propname = nvpair_name(pair); | |
9babb374 BB |
2629 | |
2630 | if (!zfs_prop_user(propname) || | |
428870ff | 2631 | nvpair_type(pair) != DATA_TYPE_STRING) |
2e528b49 | 2632 | return (SET_ERROR(EINVAL)); |
9babb374 | 2633 | |
c65aa5b2 BB |
2634 | if ((error = zfs_secpolicy_write_perms(fsname, |
2635 | ZFS_DELEG_PERM_USERPROP, CRED()))) | |
9babb374 BB |
2636 | return (error); |
2637 | ||
2638 | if (strlen(propname) >= ZAP_MAXNAMELEN) | |
2e528b49 | 2639 | return (SET_ERROR(ENAMETOOLONG)); |
9babb374 | 2640 | |
da536844 | 2641 | if (strlen(fnvpair_value_string(pair)) >= ZAP_MAXVALUELEN) |
2e528b49 | 2642 | return (SET_ERROR(E2BIG)); |
9babb374 | 2643 | } |
34dc7c2f BB |
2644 | return (0); |
2645 | } | |
2646 | ||
428870ff BB |
2647 | static void |
2648 | props_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops) | |
2649 | { | |
2650 | nvpair_t *pair; | |
2651 | ||
2652 | VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2653 | ||
2654 | pair = NULL; | |
2655 | while ((pair = nvlist_next_nvpair(props, pair)) != NULL) { | |
2656 | if (nvlist_exists(skipped, nvpair_name(pair))) | |
2657 | continue; | |
2658 | ||
2659 | VERIFY(nvlist_add_nvpair(*newprops, pair) == 0); | |
2660 | } | |
2661 | } | |
2662 | ||
2663 | static int | |
13fe0198 | 2664 | clear_received_props(const char *dsname, nvlist_t *props, |
428870ff BB |
2665 | nvlist_t *skipped) |
2666 | { | |
2667 | int err = 0; | |
2668 | nvlist_t *cleared_props = NULL; | |
2669 | props_skip(props, skipped, &cleared_props); | |
2670 | if (!nvlist_empty(cleared_props)) { | |
2671 | /* | |
2672 | * Acts on local properties until the dataset has received | |
2673 | * properties at least once on or after SPA_VERSION_RECVD_PROPS. | |
2674 | */ | |
2675 | zprop_source_t flags = (ZPROP_SRC_NONE | | |
13fe0198 MA |
2676 | (dsl_prop_get_hasrecvd(dsname) ? ZPROP_SRC_RECEIVED : 0)); |
2677 | err = zfs_set_prop_nvlist(dsname, flags, cleared_props, NULL); | |
428870ff BB |
2678 | } |
2679 | nvlist_free(cleared_props); | |
2680 | return (err); | |
2681 | } | |
2682 | ||
34dc7c2f BB |
2683 | /* |
2684 | * inputs: | |
2685 | * zc_name name of filesystem | |
9babb374 | 2686 | * zc_value name of property to set |
34dc7c2f | 2687 | * zc_nvlist_src{_size} nvlist of properties to apply |
428870ff | 2688 | * zc_cookie received properties flag |
34dc7c2f | 2689 | * |
428870ff BB |
2690 | * outputs: |
2691 | * zc_nvlist_dst{_size} error for each unapplied received property | |
34dc7c2f BB |
2692 | */ |
2693 | static int | |
2694 | zfs_ioc_set_prop(zfs_cmd_t *zc) | |
2695 | { | |
2696 | nvlist_t *nvl; | |
428870ff BB |
2697 | boolean_t received = zc->zc_cookie; |
2698 | zprop_source_t source = (received ? ZPROP_SRC_RECEIVED : | |
2699 | ZPROP_SRC_LOCAL); | |
6f1ffb06 | 2700 | nvlist_t *errors; |
34dc7c2f BB |
2701 | int error; |
2702 | ||
2703 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2704 | zc->zc_iflags, &nvl)) != 0) |
34dc7c2f BB |
2705 | return (error); |
2706 | ||
428870ff | 2707 | if (received) { |
b128c09f | 2708 | nvlist_t *origprops; |
b128c09f | 2709 | |
13fe0198 MA |
2710 | if (dsl_prop_get_received(zc->zc_name, &origprops) == 0) { |
2711 | (void) clear_received_props(zc->zc_name, | |
2712 | origprops, nvl); | |
2713 | nvlist_free(origprops); | |
428870ff | 2714 | } |
13fe0198 MA |
2715 | |
2716 | error = dsl_prop_set_hasrecvd(zc->zc_name); | |
b128c09f BB |
2717 | } |
2718 | ||
6f1ffb06 | 2719 | errors = fnvlist_alloc(); |
13fe0198 MA |
2720 | if (error == 0) |
2721 | error = zfs_set_prop_nvlist(zc->zc_name, source, nvl, errors); | |
34dc7c2f | 2722 | |
b8864a23 | 2723 | if (zc->zc_nvlist_dst != 0 && errors != NULL) { |
428870ff BB |
2724 | (void) put_nvlist(zc, errors); |
2725 | } | |
2726 | ||
2727 | nvlist_free(errors); | |
34dc7c2f BB |
2728 | nvlist_free(nvl); |
2729 | return (error); | |
2730 | } | |
2731 | ||
2732 | /* | |
2733 | * inputs: | |
2734 | * zc_name name of filesystem | |
2735 | * zc_value name of property to inherit | |
428870ff | 2736 | * zc_cookie revert to received value if TRUE |
34dc7c2f BB |
2737 | * |
2738 | * outputs: none | |
2739 | */ | |
2740 | static int | |
2741 | zfs_ioc_inherit_prop(zfs_cmd_t *zc) | |
2742 | { | |
428870ff BB |
2743 | const char *propname = zc->zc_value; |
2744 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2745 | boolean_t received = zc->zc_cookie; | |
2746 | zprop_source_t source = (received | |
2747 | ? ZPROP_SRC_NONE /* revert to received value, if any */ | |
2748 | : ZPROP_SRC_INHERITED); /* explicitly inherit */ | |
2749 | ||
2750 | if (received) { | |
2751 | nvlist_t *dummy; | |
2752 | nvpair_t *pair; | |
2753 | zprop_type_t type; | |
2754 | int err; | |
2755 | ||
2756 | /* | |
2757 | * zfs_prop_set_special() expects properties in the form of an | |
2758 | * nvpair with type info. | |
2759 | */ | |
2760 | if (prop == ZPROP_INVAL) { | |
2761 | if (!zfs_prop_user(propname)) | |
2e528b49 | 2762 | return (SET_ERROR(EINVAL)); |
428870ff BB |
2763 | |
2764 | type = PROP_TYPE_STRING; | |
2765 | } else if (prop == ZFS_PROP_VOLSIZE || | |
2766 | prop == ZFS_PROP_VERSION) { | |
2e528b49 | 2767 | return (SET_ERROR(EINVAL)); |
428870ff BB |
2768 | } else { |
2769 | type = zfs_prop_get_type(prop); | |
2770 | } | |
2771 | ||
2772 | VERIFY(nvlist_alloc(&dummy, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2773 | ||
2774 | switch (type) { | |
2775 | case PROP_TYPE_STRING: | |
2776 | VERIFY(0 == nvlist_add_string(dummy, propname, "")); | |
2777 | break; | |
2778 | case PROP_TYPE_NUMBER: | |
2779 | case PROP_TYPE_INDEX: | |
2780 | VERIFY(0 == nvlist_add_uint64(dummy, propname, 0)); | |
2781 | break; | |
2782 | default: | |
2783 | nvlist_free(dummy); | |
2e528b49 | 2784 | return (SET_ERROR(EINVAL)); |
428870ff BB |
2785 | } |
2786 | ||
2787 | pair = nvlist_next_nvpair(dummy, NULL); | |
2788 | err = zfs_prop_set_special(zc->zc_name, source, pair); | |
2789 | nvlist_free(dummy); | |
2790 | if (err != -1) | |
2791 | return (err); /* special property already handled */ | |
2792 | } else { | |
2793 | /* | |
2794 | * Only check this in the non-received case. We want to allow | |
2795 | * 'inherit -S' to revert non-inheritable properties like quota | |
2796 | * and reservation to the received or default values even though | |
2797 | * they are not considered inheritable. | |
2798 | */ | |
2799 | if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop)) | |
2e528b49 | 2800 | return (SET_ERROR(EINVAL)); |
428870ff BB |
2801 | } |
2802 | ||
6f1ffb06 | 2803 | /* property name has been validated by zfs_secpolicy_inherit_prop() */ |
13fe0198 | 2804 | return (dsl_prop_inherit(zc->zc_name, zc->zc_value, source)); |
34dc7c2f BB |
2805 | } |
2806 | ||
2807 | static int | |
2808 | zfs_ioc_pool_set_props(zfs_cmd_t *zc) | |
2809 | { | |
2810 | nvlist_t *props; | |
2811 | spa_t *spa; | |
2812 | int error; | |
428870ff | 2813 | nvpair_t *pair; |
34dc7c2f | 2814 | |
c65aa5b2 BB |
2815 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
2816 | zc->zc_iflags, &props))) | |
34dc7c2f BB |
2817 | return (error); |
2818 | ||
d164b209 BB |
2819 | /* |
2820 | * If the only property is the configfile, then just do a spa_lookup() | |
2821 | * to handle the faulted case. | |
2822 | */ | |
428870ff BB |
2823 | pair = nvlist_next_nvpair(props, NULL); |
2824 | if (pair != NULL && strcmp(nvpair_name(pair), | |
d164b209 | 2825 | zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 && |
428870ff | 2826 | nvlist_next_nvpair(props, pair) == NULL) { |
d164b209 BB |
2827 | mutex_enter(&spa_namespace_lock); |
2828 | if ((spa = spa_lookup(zc->zc_name)) != NULL) { | |
2829 | spa_configfile_set(spa, props, B_FALSE); | |
2830 | spa_config_sync(spa, B_FALSE, B_TRUE); | |
2831 | } | |
2832 | mutex_exit(&spa_namespace_lock); | |
428870ff BB |
2833 | if (spa != NULL) { |
2834 | nvlist_free(props); | |
d164b209 | 2835 | return (0); |
428870ff | 2836 | } |
d164b209 BB |
2837 | } |
2838 | ||
34dc7c2f BB |
2839 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2840 | nvlist_free(props); | |
2841 | return (error); | |
2842 | } | |
2843 | ||
2844 | error = spa_prop_set(spa, props); | |
2845 | ||
2846 | nvlist_free(props); | |
2847 | spa_close(spa, FTAG); | |
2848 | ||
2849 | return (error); | |
2850 | } | |
2851 | ||
2852 | static int | |
2853 | zfs_ioc_pool_get_props(zfs_cmd_t *zc) | |
2854 | { | |
2855 | spa_t *spa; | |
2856 | int error; | |
2857 | nvlist_t *nvp = NULL; | |
2858 | ||
d164b209 BB |
2859 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2860 | /* | |
2861 | * If the pool is faulted, there may be properties we can still | |
2862 | * get (such as altroot and cachefile), so attempt to get them | |
2863 | * anyway. | |
2864 | */ | |
2865 | mutex_enter(&spa_namespace_lock); | |
2866 | if ((spa = spa_lookup(zc->zc_name)) != NULL) | |
2867 | error = spa_prop_get(spa, &nvp); | |
2868 | mutex_exit(&spa_namespace_lock); | |
2869 | } else { | |
2870 | error = spa_prop_get(spa, &nvp); | |
2871 | spa_close(spa, FTAG); | |
2872 | } | |
34dc7c2f | 2873 | |
b8864a23 | 2874 | if (error == 0 && zc->zc_nvlist_dst != 0) |
34dc7c2f BB |
2875 | error = put_nvlist(zc, nvp); |
2876 | else | |
2e528b49 | 2877 | error = SET_ERROR(EFAULT); |
34dc7c2f | 2878 | |
d164b209 | 2879 | nvlist_free(nvp); |
34dc7c2f BB |
2880 | return (error); |
2881 | } | |
2882 | ||
34dc7c2f BB |
2883 | /* |
2884 | * inputs: | |
2885 | * zc_name name of filesystem | |
2886 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
2887 | * zc_perm_action allow/unallow flag | |
2888 | * | |
2889 | * outputs: none | |
2890 | */ | |
2891 | static int | |
2892 | zfs_ioc_set_fsacl(zfs_cmd_t *zc) | |
2893 | { | |
2894 | int error; | |
2895 | nvlist_t *fsaclnv = NULL; | |
2896 | ||
2897 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2898 | zc->zc_iflags, &fsaclnv)) != 0) |
34dc7c2f BB |
2899 | return (error); |
2900 | ||
2901 | /* | |
2902 | * Verify nvlist is constructed correctly | |
2903 | */ | |
2904 | if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) { | |
2905 | nvlist_free(fsaclnv); | |
2e528b49 | 2906 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
2907 | } |
2908 | ||
2909 | /* | |
2910 | * If we don't have PRIV_SYS_MOUNT, then validate | |
2911 | * that user is allowed to hand out each permission in | |
2912 | * the nvlist(s) | |
2913 | */ | |
2914 | ||
2915 | error = secpolicy_zfs(CRED()); | |
13fe0198 | 2916 | if (error != 0) { |
34dc7c2f BB |
2917 | if (zc->zc_perm_action == B_FALSE) { |
2918 | error = dsl_deleg_can_allow(zc->zc_name, | |
2919 | fsaclnv, CRED()); | |
2920 | } else { | |
2921 | error = dsl_deleg_can_unallow(zc->zc_name, | |
2922 | fsaclnv, CRED()); | |
2923 | } | |
2924 | } | |
2925 | ||
2926 | if (error == 0) | |
2927 | error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action); | |
2928 | ||
2929 | nvlist_free(fsaclnv); | |
2930 | return (error); | |
2931 | } | |
2932 | ||
2933 | /* | |
2934 | * inputs: | |
2935 | * zc_name name of filesystem | |
2936 | * | |
2937 | * outputs: | |
2938 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
2939 | */ | |
2940 | static int | |
2941 | zfs_ioc_get_fsacl(zfs_cmd_t *zc) | |
2942 | { | |
2943 | nvlist_t *nvp; | |
2944 | int error; | |
2945 | ||
2946 | if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) { | |
2947 | error = put_nvlist(zc, nvp); | |
2948 | nvlist_free(nvp); | |
2949 | } | |
2950 | ||
2951 | return (error); | |
2952 | } | |
2953 | ||
34dc7c2f BB |
2954 | /* ARGSUSED */ |
2955 | static void | |
2956 | zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx) | |
2957 | { | |
2958 | zfs_creat_t *zct = arg; | |
2959 | ||
2960 | zfs_create_fs(os, cr, zct->zct_zplprops, tx); | |
2961 | } | |
2962 | ||
2963 | #define ZFS_PROP_UNDEFINED ((uint64_t)-1) | |
2964 | ||
2965 | /* | |
2966 | * inputs: | |
b128c09f | 2967 | * os parent objset pointer (NULL if root fs) |
d3cc8b15 WA |
2968 | * fuids_ok fuids allowed in this version of the spa? |
2969 | * sa_ok SAs allowed in this version of the spa? | |
2970 | * createprops list of properties requested by creator | |
34dc7c2f BB |
2971 | * |
2972 | * outputs: | |
2973 | * zplprops values for the zplprops we attach to the master node object | |
b128c09f | 2974 | * is_ci true if requested file system will be purely case-insensitive |
34dc7c2f BB |
2975 | * |
2976 | * Determine the settings for utf8only, normalization and | |
2977 | * casesensitivity. Specific values may have been requested by the | |
2978 | * creator and/or we can inherit values from the parent dataset. If | |
2979 | * the file system is of too early a vintage, a creator can not | |
2980 | * request settings for these properties, even if the requested | |
2981 | * setting is the default value. We don't actually want to create dsl | |
2982 | * properties for these, so remove them from the source nvlist after | |
2983 | * processing. | |
2984 | */ | |
2985 | static int | |
9babb374 | 2986 | zfs_fill_zplprops_impl(objset_t *os, uint64_t zplver, |
428870ff BB |
2987 | boolean_t fuids_ok, boolean_t sa_ok, nvlist_t *createprops, |
2988 | nvlist_t *zplprops, boolean_t *is_ci) | |
34dc7c2f | 2989 | { |
34dc7c2f BB |
2990 | uint64_t sense = ZFS_PROP_UNDEFINED; |
2991 | uint64_t norm = ZFS_PROP_UNDEFINED; | |
2992 | uint64_t u8 = ZFS_PROP_UNDEFINED; | |
b129c659 | 2993 | int error; |
34dc7c2f BB |
2994 | |
2995 | ASSERT(zplprops != NULL); | |
2996 | ||
34dc7c2f BB |
2997 | /* |
2998 | * Pull out creator prop choices, if any. | |
2999 | */ | |
3000 | if (createprops) { | |
b128c09f BB |
3001 | (void) nvlist_lookup_uint64(createprops, |
3002 | zfs_prop_to_name(ZFS_PROP_VERSION), &zplver); | |
34dc7c2f BB |
3003 | (void) nvlist_lookup_uint64(createprops, |
3004 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm); | |
3005 | (void) nvlist_remove_all(createprops, | |
3006 | zfs_prop_to_name(ZFS_PROP_NORMALIZE)); | |
3007 | (void) nvlist_lookup_uint64(createprops, | |
3008 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8); | |
3009 | (void) nvlist_remove_all(createprops, | |
3010 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); | |
3011 | (void) nvlist_lookup_uint64(createprops, | |
3012 | zfs_prop_to_name(ZFS_PROP_CASE), &sense); | |
3013 | (void) nvlist_remove_all(createprops, | |
3014 | zfs_prop_to_name(ZFS_PROP_CASE)); | |
3015 | } | |
3016 | ||
3017 | /* | |
b128c09f BB |
3018 | * If the zpl version requested is whacky or the file system |
3019 | * or pool is version is too "young" to support normalization | |
3020 | * and the creator tried to set a value for one of the props, | |
3021 | * error out. | |
34dc7c2f | 3022 | */ |
b128c09f BB |
3023 | if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) || |
3024 | (zplver >= ZPL_VERSION_FUID && !fuids_ok) || | |
428870ff | 3025 | (zplver >= ZPL_VERSION_SA && !sa_ok) || |
b128c09f | 3026 | (zplver < ZPL_VERSION_NORMALIZATION && |
34dc7c2f | 3027 | (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED || |
b128c09f | 3028 | sense != ZFS_PROP_UNDEFINED))) |
2e528b49 | 3029 | return (SET_ERROR(ENOTSUP)); |
34dc7c2f BB |
3030 | |
3031 | /* | |
3032 | * Put the version in the zplprops | |
3033 | */ | |
3034 | VERIFY(nvlist_add_uint64(zplprops, | |
3035 | zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0); | |
3036 | ||
b129c659 MM |
3037 | if (norm == ZFS_PROP_UNDEFINED && |
3038 | (error = zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm)) != 0) | |
3039 | return (error); | |
34dc7c2f BB |
3040 | VERIFY(nvlist_add_uint64(zplprops, |
3041 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0); | |
3042 | ||
3043 | /* | |
3044 | * If we're normalizing, names must always be valid UTF-8 strings. | |
3045 | */ | |
3046 | if (norm) | |
3047 | u8 = 1; | |
b129c659 MM |
3048 | if (u8 == ZFS_PROP_UNDEFINED && |
3049 | (error = zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8)) != 0) | |
3050 | return (error); | |
34dc7c2f BB |
3051 | VERIFY(nvlist_add_uint64(zplprops, |
3052 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0); | |
3053 | ||
b129c659 MM |
3054 | if (sense == ZFS_PROP_UNDEFINED && |
3055 | (error = zfs_get_zplprop(os, ZFS_PROP_CASE, &sense)) != 0) | |
3056 | return (error); | |
34dc7c2f BB |
3057 | VERIFY(nvlist_add_uint64(zplprops, |
3058 | zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0); | |
3059 | ||
3060 | if (is_ci) | |
3061 | *is_ci = (sense == ZFS_CASE_INSENSITIVE); | |
3062 | ||
34dc7c2f BB |
3063 | return (0); |
3064 | } | |
3065 | ||
b128c09f BB |
3066 | static int |
3067 | zfs_fill_zplprops(const char *dataset, nvlist_t *createprops, | |
3068 | nvlist_t *zplprops, boolean_t *is_ci) | |
3069 | { | |
428870ff | 3070 | boolean_t fuids_ok, sa_ok; |
b128c09f BB |
3071 | uint64_t zplver = ZPL_VERSION; |
3072 | objset_t *os = NULL; | |
3073 | char parentname[MAXNAMELEN]; | |
3074 | char *cp; | |
428870ff BB |
3075 | spa_t *spa; |
3076 | uint64_t spa_vers; | |
b128c09f BB |
3077 | int error; |
3078 | ||
3079 | (void) strlcpy(parentname, dataset, sizeof (parentname)); | |
3080 | cp = strrchr(parentname, '/'); | |
3081 | ASSERT(cp != NULL); | |
3082 | cp[0] = '\0'; | |
3083 | ||
428870ff BB |
3084 | if ((error = spa_open(dataset, &spa, FTAG)) != 0) |
3085 | return (error); | |
3086 | ||
3087 | spa_vers = spa_version(spa); | |
3088 | spa_close(spa, FTAG); | |
3089 | ||
3090 | zplver = zfs_zpl_version_map(spa_vers); | |
3091 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
3092 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f BB |
3093 | |
3094 | /* | |
3095 | * Open parent object set so we can inherit zplprop values. | |
3096 | */ | |
428870ff | 3097 | if ((error = dmu_objset_hold(parentname, FTAG, &os)) != 0) |
b128c09f BB |
3098 | return (error); |
3099 | ||
428870ff | 3100 | error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, sa_ok, createprops, |
b128c09f | 3101 | zplprops, is_ci); |
428870ff | 3102 | dmu_objset_rele(os, FTAG); |
b128c09f BB |
3103 | return (error); |
3104 | } | |
3105 | ||
3106 | static int | |
3107 | zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops, | |
3108 | nvlist_t *zplprops, boolean_t *is_ci) | |
3109 | { | |
428870ff BB |
3110 | boolean_t fuids_ok; |
3111 | boolean_t sa_ok; | |
b128c09f BB |
3112 | uint64_t zplver = ZPL_VERSION; |
3113 | int error; | |
3114 | ||
428870ff BB |
3115 | zplver = zfs_zpl_version_map(spa_vers); |
3116 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
3117 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f | 3118 | |
428870ff BB |
3119 | error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, sa_ok, |
3120 | createprops, zplprops, is_ci); | |
b128c09f BB |
3121 | return (error); |
3122 | } | |
3123 | ||
34dc7c2f | 3124 | /* |
6f1ffb06 MA |
3125 | * innvl: { |
3126 | * "type" -> dmu_objset_type_t (int32) | |
3127 | * (optional) "props" -> { prop -> value } | |
3128 | * } | |
34dc7c2f | 3129 | * |
6f1ffb06 | 3130 | * outnvl: propname -> error code (int32) |
34dc7c2f BB |
3131 | */ |
3132 | static int | |
6f1ffb06 | 3133 | zfs_ioc_create(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3134 | { |
34dc7c2f | 3135 | int error = 0; |
6f1ffb06 | 3136 | zfs_creat_t zct = { 0 }; |
34dc7c2f BB |
3137 | nvlist_t *nvprops = NULL; |
3138 | void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx); | |
6f1ffb06 MA |
3139 | int32_t type32; |
3140 | dmu_objset_type_t type; | |
3141 | boolean_t is_insensitive = B_FALSE; | |
34dc7c2f | 3142 | |
6f1ffb06 | 3143 | if (nvlist_lookup_int32(innvl, "type", &type32) != 0) |
2e528b49 | 3144 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3145 | type = type32; |
3146 | (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); | |
34dc7c2f | 3147 | |
6f1ffb06 | 3148 | switch (type) { |
34dc7c2f BB |
3149 | case DMU_OST_ZFS: |
3150 | cbfunc = zfs_create_cb; | |
3151 | break; | |
3152 | ||
3153 | case DMU_OST_ZVOL: | |
3154 | cbfunc = zvol_create_cb; | |
3155 | break; | |
3156 | ||
3157 | default: | |
3158 | cbfunc = NULL; | |
3159 | break; | |
3160 | } | |
6f1ffb06 MA |
3161 | if (strchr(fsname, '@') || |
3162 | strchr(fsname, '%')) | |
2e528b49 | 3163 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3164 | |
34dc7c2f BB |
3165 | zct.zct_props = nvprops; |
3166 | ||
6f1ffb06 | 3167 | if (cbfunc == NULL) |
2e528b49 | 3168 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3169 | |
6f1ffb06 MA |
3170 | if (type == DMU_OST_ZVOL) { |
3171 | uint64_t volsize, volblocksize; | |
34dc7c2f | 3172 | |
6f1ffb06 | 3173 | if (nvprops == NULL) |
2e528b49 | 3174 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3175 | if (nvlist_lookup_uint64(nvprops, |
3176 | zfs_prop_to_name(ZFS_PROP_VOLSIZE), &volsize) != 0) | |
2e528b49 | 3177 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3178 | |
6f1ffb06 MA |
3179 | if ((error = nvlist_lookup_uint64(nvprops, |
3180 | zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
3181 | &volblocksize)) != 0 && error != ENOENT) | |
2e528b49 | 3182 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3183 | |
6f1ffb06 MA |
3184 | if (error != 0) |
3185 | volblocksize = zfs_prop_default_numeric( | |
3186 | ZFS_PROP_VOLBLOCKSIZE); | |
34dc7c2f | 3187 | |
6f1ffb06 MA |
3188 | if ((error = zvol_check_volblocksize( |
3189 | volblocksize)) != 0 || | |
3190 | (error = zvol_check_volsize(volsize, | |
3191 | volblocksize)) != 0) | |
3192 | return (error); | |
3193 | } else if (type == DMU_OST_ZFS) { | |
3194 | int error; | |
34dc7c2f | 3195 | |
6f1ffb06 MA |
3196 | /* |
3197 | * We have to have normalization and | |
3198 | * case-folding flags correct when we do the | |
3199 | * file system creation, so go figure them out | |
3200 | * now. | |
3201 | */ | |
3202 | VERIFY(nvlist_alloc(&zct.zct_zplprops, | |
3203 | NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3204 | error = zfs_fill_zplprops(fsname, nvprops, | |
3205 | zct.zct_zplprops, &is_insensitive); | |
3206 | if (error != 0) { | |
3207 | nvlist_free(zct.zct_zplprops); | |
3208 | return (error); | |
34dc7c2f | 3209 | } |
34dc7c2f BB |
3210 | } |
3211 | ||
6f1ffb06 MA |
3212 | error = dmu_objset_create(fsname, type, |
3213 | is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct); | |
3214 | nvlist_free(zct.zct_zplprops); | |
3215 | ||
34dc7c2f BB |
3216 | /* |
3217 | * It would be nice to do this atomically. | |
3218 | */ | |
3219 | if (error == 0) { | |
6f1ffb06 MA |
3220 | error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, |
3221 | nvprops, outnvl); | |
428870ff | 3222 | if (error != 0) |
13fe0198 | 3223 | (void) dsl_destroy_head(fsname); |
34dc7c2f | 3224 | } |
ba6a2402 BB |
3225 | |
3226 | #ifdef _KERNEL | |
3227 | if (error == 0 && type == DMU_OST_ZVOL) | |
3228 | zvol_create_minors(fsname); | |
3229 | #endif | |
3230 | ||
34dc7c2f BB |
3231 | return (error); |
3232 | } | |
3233 | ||
3234 | /* | |
6f1ffb06 MA |
3235 | * innvl: { |
3236 | * "origin" -> name of origin snapshot | |
3237 | * (optional) "props" -> { prop -> value } | |
3238 | * } | |
34dc7c2f | 3239 | * |
428870ff | 3240 | * outputs: |
6f1ffb06 | 3241 | * outnvl: propname -> error code (int32) |
34dc7c2f BB |
3242 | */ |
3243 | static int | |
6f1ffb06 | 3244 | zfs_ioc_clone(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3245 | { |
6f1ffb06 | 3246 | int error = 0; |
b128c09f | 3247 | nvlist_t *nvprops = NULL; |
6f1ffb06 | 3248 | char *origin_name; |
b128c09f | 3249 | |
6f1ffb06 | 3250 | if (nvlist_lookup_string(innvl, "origin", &origin_name) != 0) |
2e528b49 | 3251 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 3252 | (void) nvlist_lookup_nvlist(innvl, "props", &nvprops); |
b128c09f | 3253 | |
6f1ffb06 MA |
3254 | if (strchr(fsname, '@') || |
3255 | strchr(fsname, '%')) | |
2e528b49 | 3256 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3257 | |
3258 | if (dataset_namecheck(origin_name, NULL, NULL) != 0) | |
2e528b49 | 3259 | return (SET_ERROR(EINVAL)); |
13fe0198 MA |
3260 | error = dmu_objset_clone(fsname, origin_name); |
3261 | if (error != 0) | |
6f1ffb06 | 3262 | return (error); |
b128c09f | 3263 | |
6f1ffb06 MA |
3264 | /* |
3265 | * It would be nice to do this atomically. | |
3266 | */ | |
3267 | if (error == 0) { | |
3268 | error = zfs_set_prop_nvlist(fsname, ZPROP_SRC_LOCAL, | |
3269 | nvprops, outnvl); | |
3270 | if (error != 0) | |
13fe0198 | 3271 | (void) dsl_destroy_head(fsname); |
b128c09f | 3272 | } |
ba6a2402 BB |
3273 | |
3274 | #ifdef _KERNEL | |
3275 | if (error == 0) | |
3276 | zvol_create_minors(fsname); | |
3277 | #endif | |
3278 | ||
6f1ffb06 MA |
3279 | return (error); |
3280 | } | |
9babb374 | 3281 | |
6f1ffb06 MA |
3282 | /* |
3283 | * innvl: { | |
3284 | * "snaps" -> { snapshot1, snapshot2 } | |
3285 | * (optional) "props" -> { prop -> value (string) } | |
3286 | * } | |
3287 | * | |
3288 | * outnvl: snapshot -> error code (int32) | |
6f1ffb06 MA |
3289 | */ |
3290 | static int | |
3291 | zfs_ioc_snapshot(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) | |
3292 | { | |
3293 | nvlist_t *snaps; | |
3294 | nvlist_t *props = NULL; | |
3295 | int error, poollen; | |
3296 | nvpair_t *pair, *pair2; | |
9babb374 | 3297 | |
6f1ffb06 MA |
3298 | (void) nvlist_lookup_nvlist(innvl, "props", &props); |
3299 | if ((error = zfs_check_userprops(poolname, props)) != 0) | |
3300 | return (error); | |
3301 | ||
3302 | if (!nvlist_empty(props) && | |
3303 | zfs_earlier_version(poolname, SPA_VERSION_SNAP_PROPS)) | |
2e528b49 | 3304 | return (SET_ERROR(ENOTSUP)); |
6f1ffb06 MA |
3305 | |
3306 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) | |
2e528b49 | 3307 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3308 | poollen = strlen(poolname); |
3309 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; | |
3310 | pair = nvlist_next_nvpair(snaps, pair)) { | |
3311 | const char *name = nvpair_name(pair); | |
3312 | const char *cp = strchr(name, '@'); | |
3313 | ||
3314 | /* | |
3315 | * The snap name must contain an @, and the part after it must | |
3316 | * contain only valid characters. | |
3317 | */ | |
da536844 MA |
3318 | if (cp == NULL || |
3319 | zfs_component_namecheck(cp + 1, NULL, NULL) != 0) | |
2e528b49 | 3320 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3321 | |
3322 | /* | |
3323 | * The snap must be in the specified pool. | |
3324 | */ | |
3325 | if (strncmp(name, poolname, poollen) != 0 || | |
3326 | (name[poollen] != '/' && name[poollen] != '@')) | |
2e528b49 | 3327 | return (SET_ERROR(EXDEV)); |
6f1ffb06 MA |
3328 | |
3329 | /* This must be the only snap of this fs. */ | |
3330 | for (pair2 = nvlist_next_nvpair(snaps, pair); | |
3331 | pair2 != NULL; pair2 = nvlist_next_nvpair(snaps, pair2)) { | |
3332 | if (strncmp(name, nvpair_name(pair2), cp - name + 1) | |
3333 | == 0) { | |
2e528b49 | 3334 | return (SET_ERROR(EXDEV)); |
6f1ffb06 MA |
3335 | } |
3336 | } | |
3337 | } | |
3338 | ||
13fe0198 | 3339 | error = dsl_dataset_snapshot(snaps, props, outnvl); |
ba6a2402 BB |
3340 | |
3341 | #ifdef _KERNEL | |
3342 | if (error == 0) | |
3343 | zvol_create_minors(poolname); | |
3344 | #endif | |
3345 | ||
6f1ffb06 MA |
3346 | return (error); |
3347 | } | |
3348 | ||
3349 | /* | |
3350 | * innvl: "message" -> string | |
3351 | */ | |
3352 | /* ARGSUSED */ | |
3353 | static int | |
3354 | zfs_ioc_log_history(const char *unused, nvlist_t *innvl, nvlist_t *outnvl) | |
3355 | { | |
3356 | char *message; | |
3357 | spa_t *spa; | |
3358 | int error; | |
3359 | char *poolname; | |
3360 | ||
3361 | /* | |
3362 | * The poolname in the ioctl is not set, we get it from the TSD, | |
3363 | * which was set at the end of the last successful ioctl that allows | |
3364 | * logging. The secpolicy func already checked that it is set. | |
3365 | * Only one log ioctl is allowed after each successful ioctl, so | |
3366 | * we clear the TSD here. | |
3367 | */ | |
3368 | poolname = tsd_get(zfs_allow_log_key); | |
3369 | (void) tsd_set(zfs_allow_log_key, NULL); | |
3370 | error = spa_open(poolname, &spa, FTAG); | |
3371 | strfree(poolname); | |
3372 | if (error != 0) | |
3373 | return (error); | |
3374 | ||
3375 | if (nvlist_lookup_string(innvl, "message", &message) != 0) { | |
3376 | spa_close(spa, FTAG); | |
2e528b49 | 3377 | return (SET_ERROR(EINVAL)); |
6f1ffb06 MA |
3378 | } |
3379 | ||
3380 | if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { | |
3381 | spa_close(spa, FTAG); | |
2e528b49 | 3382 | return (SET_ERROR(ENOTSUP)); |
6f1ffb06 MA |
3383 | } |
3384 | ||
3385 | error = spa_history_log(spa, message); | |
3386 | spa_close(spa, FTAG); | |
b128c09f | 3387 | return (error); |
34dc7c2f BB |
3388 | } |
3389 | ||
ebe7e575 | 3390 | /* |
13fe0198 MA |
3391 | * The dp_config_rwlock must not be held when calling this, because the |
3392 | * unmount may need to write out data. | |
3393 | * | |
3394 | * This function is best-effort. Callers must deal gracefully if it | |
3395 | * remains mounted (or is remounted after this call). | |
d09f25dc WA |
3396 | * |
3397 | * XXX: This function should detect a failure to unmount a snapdir of a dataset | |
3398 | * and return the appropriate error code when it is mounted. Its Illumos and | |
3399 | * FreeBSD counterparts do this. We do not do this on Linux because there is no | |
3400 | * clear way to access the mount information that FreeBSD and Illumos use to | |
3401 | * distinguish between things with mounted snapshot directories, and things | |
3402 | * without mounted snapshot directories, which include zvols. Returning a | |
3403 | * failure for the latter causes `zfs destroy` to fail on zvol snapshots. | |
ebe7e575 | 3404 | */ |
d09f25dc | 3405 | int |
13fe0198 | 3406 | zfs_unmount_snap(const char *snapname) |
34dc7c2f | 3407 | { |
ebe7e575 BB |
3408 | zfs_sb_t *zsb = NULL; |
3409 | char *dsname; | |
ebe7e575 BB |
3410 | char *fullname; |
3411 | char *ptr; | |
34dc7c2f | 3412 | |
13fe0198 | 3413 | if ((ptr = strchr(snapname, '@')) == NULL) |
d09f25dc | 3414 | return (0); |
34dc7c2f | 3415 | |
20f04f08 RY |
3416 | dsname = kmem_alloc(ptr - snapname + 1, KM_SLEEP); |
3417 | strlcpy(dsname, snapname, ptr - snapname + 1); | |
3418 | fullname = strdup(snapname); | |
3419 | ||
13fe0198 MA |
3420 | if (zfs_sb_hold(dsname, FTAG, &zsb, B_FALSE) == 0) { |
3421 | ASSERT(!dsl_pool_config_held(dmu_objset_pool(zsb->z_os))); | |
3422 | (void) zfsctl_unmount_snapshot(zsb, fullname, MNT_FORCE); | |
ebe7e575 | 3423 | zfs_sb_rele(zsb, FTAG); |
34dc7c2f | 3424 | } |
ebe7e575 | 3425 | |
20f04f08 | 3426 | kmem_free(dsname, ptr - snapname + 1); |
ebe7e575 BB |
3427 | strfree(fullname); |
3428 | ||
d09f25dc | 3429 | return (0); |
13fe0198 MA |
3430 | } |
3431 | ||
3432 | /* ARGSUSED */ | |
3433 | static int | |
3434 | zfs_unmount_snap_cb(const char *snapname, void *arg) | |
3435 | { | |
d09f25dc | 3436 | return (zfs_unmount_snap(snapname)); |
13fe0198 MA |
3437 | } |
3438 | ||
3439 | /* | |
3440 | * When a clone is destroyed, its origin may also need to be destroyed, | |
3441 | * in which case it must be unmounted. This routine will do that unmount | |
3442 | * if necessary. | |
3443 | */ | |
3444 | void | |
3445 | zfs_destroy_unmount_origin(const char *fsname) | |
3446 | { | |
3447 | int error; | |
3448 | objset_t *os; | |
3449 | dsl_dataset_t *ds; | |
3450 | ||
3451 | error = dmu_objset_hold(fsname, FTAG, &os); | |
3452 | if (error != 0) | |
3453 | return; | |
3454 | ds = dmu_objset_ds(os); | |
3455 | if (dsl_dir_is_clone(ds->ds_dir) && DS_IS_DEFER_DESTROY(ds->ds_prev)) { | |
3456 | char originname[MAXNAMELEN]; | |
3457 | dsl_dataset_name(ds->ds_prev, originname); | |
3458 | dmu_objset_rele(os, FTAG); | |
d09f25dc | 3459 | (void) zfs_unmount_snap(originname); |
13fe0198 MA |
3460 | } else { |
3461 | dmu_objset_rele(os, FTAG); | |
3462 | } | |
34dc7c2f BB |
3463 | } |
3464 | ||
3465 | /* | |
6f1ffb06 MA |
3466 | * innvl: { |
3467 | * "snaps" -> { snapshot1, snapshot2 } | |
3468 | * (optional boolean) "defer" | |
3469 | * } | |
34dc7c2f | 3470 | * |
6f1ffb06 | 3471 | * outnvl: snapshot -> error code (int32) |
34dc7c2f | 3472 | */ |
da536844 | 3473 | /* ARGSUSED */ |
34dc7c2f | 3474 | static int |
6f1ffb06 | 3475 | zfs_ioc_destroy_snaps(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) |
34dc7c2f | 3476 | { |
6f1ffb06 | 3477 | nvlist_t *snaps; |
330d06f9 | 3478 | nvpair_t *pair; |
6f1ffb06 | 3479 | boolean_t defer; |
34dc7c2f | 3480 | |
6f1ffb06 | 3481 | if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0) |
2e528b49 | 3482 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 3483 | defer = nvlist_exists(innvl, "defer"); |
330d06f9 | 3484 | |
6f1ffb06 MA |
3485 | for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL; |
3486 | pair = nvlist_next_nvpair(snaps, pair)) { | |
da536844 MA |
3487 | (void) zfs_unmount_snap(nvpair_name(pair)); |
3488 | (void) zvol_remove_minor(nvpair_name(pair)); | |
3489 | } | |
3490 | ||
3491 | return (dsl_destroy_snapshots_nvl(snaps, defer, outnvl)); | |
3492 | } | |
3493 | ||
3494 | /* | |
3495 | * Create bookmarks. Bookmark names are of the form <fs>#<bmark>. | |
3496 | * All bookmarks must be in the same pool. | |
3497 | * | |
3498 | * innvl: { | |
3499 | * bookmark1 -> snapshot1, bookmark2 -> snapshot2 | |
3500 | * } | |
3501 | * | |
3502 | * outnvl: bookmark -> error code (int32) | |
3503 | * | |
3504 | */ | |
3505 | /* ARGSUSED */ | |
3506 | static int | |
3507 | zfs_ioc_bookmark(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl) | |
3508 | { | |
3509 | nvpair_t *pair, *pair2; | |
3510 | ||
3511 | for (pair = nvlist_next_nvpair(innvl, NULL); | |
3512 | pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { | |
3513 | char *snap_name; | |
3514 | ||
3515 | /* | |
3516 | * Verify the snapshot argument. | |
3517 | */ | |
3518 | if (nvpair_value_string(pair, &snap_name) != 0) | |
3519 | return (SET_ERROR(EINVAL)); | |
3520 | ||
3521 | ||
3522 | /* Verify that the keys (bookmarks) are unique */ | |
3523 | for (pair2 = nvlist_next_nvpair(innvl, pair); | |
3524 | pair2 != NULL; pair2 = nvlist_next_nvpair(innvl, pair2)) { | |
3525 | if (strcmp(nvpair_name(pair), nvpair_name(pair2)) == 0) | |
3526 | return (SET_ERROR(EINVAL)); | |
3527 | } | |
3528 | } | |
3529 | ||
3530 | return (dsl_bookmark_create(innvl, outnvl)); | |
3531 | } | |
3532 | ||
3533 | /* | |
3534 | * innvl: { | |
3535 | * property 1, property 2, ... | |
3536 | * } | |
3537 | * | |
3538 | * outnvl: { | |
3539 | * bookmark name 1 -> { property 1, property 2, ... }, | |
3540 | * bookmark name 2 -> { property 1, property 2, ... } | |
3541 | * } | |
3542 | * | |
3543 | */ | |
3544 | static int | |
3545 | zfs_ioc_get_bookmarks(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl) | |
3546 | { | |
3547 | return (dsl_get_bookmarks(fsname, innvl, outnvl)); | |
3548 | } | |
3549 | ||
3550 | /* | |
3551 | * innvl: { | |
3552 | * bookmark name 1, bookmark name 2 | |
3553 | * } | |
3554 | * | |
3555 | * outnvl: bookmark -> error code (int32) | |
3556 | * | |
3557 | */ | |
3558 | static int | |
3559 | zfs_ioc_destroy_bookmarks(const char *poolname, nvlist_t *innvl, | |
3560 | nvlist_t *outnvl) | |
3561 | { | |
3562 | int error, poollen; | |
3563 | nvpair_t *pair; | |
3564 | ||
3565 | poollen = strlen(poolname); | |
3566 | for (pair = nvlist_next_nvpair(innvl, NULL); | |
3567 | pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) { | |
330d06f9 | 3568 | const char *name = nvpair_name(pair); |
da536844 | 3569 | const char *cp = strchr(name, '#'); |
6f1ffb06 | 3570 | |
330d06f9 | 3571 | /* |
da536844 MA |
3572 | * The bookmark name must contain an #, and the part after it |
3573 | * must contain only valid characters. | |
3574 | */ | |
3575 | if (cp == NULL || | |
3576 | zfs_component_namecheck(cp + 1, NULL, NULL) != 0) | |
3577 | return (SET_ERROR(EINVAL)); | |
3578 | ||
3579 | /* | |
3580 | * The bookmark must be in the specified pool. | |
330d06f9 | 3581 | */ |
6f1ffb06 | 3582 | if (strncmp(name, poolname, poollen) != 0 || |
da536844 | 3583 | (name[poollen] != '/' && name[poollen] != '#')) |
2e528b49 | 3584 | return (SET_ERROR(EXDEV)); |
330d06f9 MA |
3585 | } |
3586 | ||
da536844 MA |
3587 | error = dsl_bookmark_destroy(innvl, outnvl); |
3588 | return (error); | |
34dc7c2f BB |
3589 | } |
3590 | ||
3591 | /* | |
3592 | * inputs: | |
3593 | * zc_name name of dataset to destroy | |
3594 | * zc_objset_type type of objset | |
45d1cae3 | 3595 | * zc_defer_destroy mark for deferred destroy |
34dc7c2f BB |
3596 | * |
3597 | * outputs: none | |
3598 | */ | |
3599 | static int | |
3600 | zfs_ioc_destroy(zfs_cmd_t *zc) | |
3601 | { | |
428870ff | 3602 | int err; |
d09f25dc WA |
3603 | |
3604 | if (zc->zc_objset_type == DMU_OST_ZFS) { | |
3605 | err = zfs_unmount_snap(zc->zc_name); | |
3606 | if (err != 0) | |
3607 | return (err); | |
3608 | } | |
34dc7c2f | 3609 | |
13fe0198 MA |
3610 | if (strchr(zc->zc_name, '@')) |
3611 | err = dsl_destroy_snapshot(zc->zc_name, zc->zc_defer_destroy); | |
3612 | else | |
3613 | err = dsl_destroy_head(zc->zc_name); | |
428870ff BB |
3614 | if (zc->zc_objset_type == DMU_OST_ZVOL && err == 0) |
3615 | (void) zvol_remove_minor(zc->zc_name); | |
3616 | return (err); | |
34dc7c2f BB |
3617 | } |
3618 | ||
3619 | /* | |
46ba1e59 | 3620 | * fsname is name of dataset to rollback (to most recent snapshot) |
34dc7c2f | 3621 | * |
46ba1e59 MA |
3622 | * innvl is not used. |
3623 | * | |
3624 | * outnvl: "target" -> name of most recent snapshot | |
3625 | * } | |
34dc7c2f | 3626 | */ |
46ba1e59 | 3627 | /* ARGSUSED */ |
34dc7c2f | 3628 | static int |
46ba1e59 | 3629 | zfs_ioc_rollback(const char *fsname, nvlist_t *args, nvlist_t *outnvl) |
34dc7c2f | 3630 | { |
3558fd73 | 3631 | zfs_sb_t *zsb; |
13fe0198 | 3632 | int error; |
34dc7c2f | 3633 | |
46ba1e59 | 3634 | if (get_zfs_sb(fsname, &zsb) == 0) { |
3558fd73 | 3635 | error = zfs_suspend_fs(zsb); |
34dc7c2f BB |
3636 | if (error == 0) { |
3637 | int resume_err; | |
3638 | ||
46ba1e59 MA |
3639 | error = dsl_dataset_rollback(fsname, zsb, outnvl); |
3640 | resume_err = zfs_resume_fs(zsb, fsname); | |
34dc7c2f | 3641 | error = error ? error : resume_err; |
34dc7c2f | 3642 | } |
2cf7f52b | 3643 | deactivate_super(zsb->z_sb); |
34dc7c2f | 3644 | } else { |
46ba1e59 | 3645 | error = dsl_dataset_rollback(fsname, NULL, outnvl); |
34dc7c2f | 3646 | } |
13fe0198 MA |
3647 | return (error); |
3648 | } | |
34dc7c2f | 3649 | |
13fe0198 MA |
3650 | static int |
3651 | recursive_unmount(const char *fsname, void *arg) | |
3652 | { | |
3653 | const char *snapname = arg; | |
3654 | char *fullname; | |
00fcdee1 | 3655 | int error; |
428870ff | 3656 | |
13fe0198 | 3657 | fullname = kmem_asprintf("%s@%s", fsname, snapname); |
00fcdee1 | 3658 | error = zfs_unmount_snap(fullname); |
13fe0198 | 3659 | strfree(fullname); |
00fcdee1 AV |
3660 | |
3661 | return (error); | |
34dc7c2f BB |
3662 | } |
3663 | ||
3664 | /* | |
3665 | * inputs: | |
3666 | * zc_name old name of dataset | |
3667 | * zc_value new name of dataset | |
3668 | * zc_cookie recursive flag (only valid for snapshots) | |
3669 | * | |
3670 | * outputs: none | |
3671 | */ | |
3672 | static int | |
3673 | zfs_ioc_rename(zfs_cmd_t *zc) | |
3674 | { | |
3675 | boolean_t recursive = zc->zc_cookie & 1; | |
13fe0198 | 3676 | char *at; |
34dc7c2f BB |
3677 | |
3678 | zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; | |
3679 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
3680 | strchr(zc->zc_value, '%')) | |
2e528b49 | 3681 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 3682 | |
13fe0198 MA |
3683 | at = strchr(zc->zc_name, '@'); |
3684 | if (at != NULL) { | |
3685 | /* snaps must be in same fs */ | |
9554185d SH |
3686 | int error; |
3687 | ||
13fe0198 | 3688 | if (strncmp(zc->zc_name, zc->zc_value, at - zc->zc_name + 1)) |
2e528b49 | 3689 | return (SET_ERROR(EXDEV)); |
13fe0198 MA |
3690 | *at = '\0'; |
3691 | if (zc->zc_objset_type == DMU_OST_ZFS) { | |
9554185d | 3692 | error = dmu_objset_find(zc->zc_name, |
13fe0198 MA |
3693 | recursive_unmount, at + 1, |
3694 | recursive ? DS_FIND_CHILDREN : 0); | |
9554185d SH |
3695 | if (error != 0) { |
3696 | *at = '@'; | |
13fe0198 | 3697 | return (error); |
9554185d | 3698 | } |
13fe0198 | 3699 | } |
9554185d SH |
3700 | error = dsl_dataset_rename_snapshot(zc->zc_name, |
3701 | at + 1, strchr(zc->zc_value, '@') + 1, recursive); | |
3702 | *at = '@'; | |
3703 | ||
3704 | return (error); | |
13fe0198 | 3705 | } else { |
ba6a2402 | 3706 | return (dsl_dir_rename(zc->zc_name, zc->zc_value)); |
95c73795 | 3707 | } |
34dc7c2f BB |
3708 | } |
3709 | ||
428870ff BB |
3710 | static int |
3711 | zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr) | |
3712 | { | |
3713 | const char *propname = nvpair_name(pair); | |
3714 | boolean_t issnap = (strchr(dsname, '@') != NULL); | |
3715 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
3716 | uint64_t intval; | |
3717 | int err; | |
3718 | ||
3719 | if (prop == ZPROP_INVAL) { | |
3720 | if (zfs_prop_user(propname)) { | |
c65aa5b2 BB |
3721 | if ((err = zfs_secpolicy_write_perms(dsname, |
3722 | ZFS_DELEG_PERM_USERPROP, cr))) | |
428870ff BB |
3723 | return (err); |
3724 | return (0); | |
3725 | } | |
3726 | ||
3727 | if (!issnap && zfs_prop_userquota(propname)) { | |
3728 | const char *perm = NULL; | |
3729 | const char *uq_prefix = | |
3730 | zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA]; | |
3731 | const char *gq_prefix = | |
3732 | zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA]; | |
3733 | ||
3734 | if (strncmp(propname, uq_prefix, | |
3735 | strlen(uq_prefix)) == 0) { | |
3736 | perm = ZFS_DELEG_PERM_USERQUOTA; | |
3737 | } else if (strncmp(propname, gq_prefix, | |
3738 | strlen(gq_prefix)) == 0) { | |
3739 | perm = ZFS_DELEG_PERM_GROUPQUOTA; | |
3740 | } else { | |
3741 | /* USERUSED and GROUPUSED are read-only */ | |
2e528b49 | 3742 | return (SET_ERROR(EINVAL)); |
428870ff BB |
3743 | } |
3744 | ||
c65aa5b2 | 3745 | if ((err = zfs_secpolicy_write_perms(dsname, perm, cr))) |
428870ff BB |
3746 | return (err); |
3747 | return (0); | |
3748 | } | |
3749 | ||
2e528b49 | 3750 | return (SET_ERROR(EINVAL)); |
428870ff BB |
3751 | } |
3752 | ||
3753 | if (issnap) | |
2e528b49 | 3754 | return (SET_ERROR(EINVAL)); |
428870ff BB |
3755 | |
3756 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
3757 | /* | |
3758 | * dsl_prop_get_all_impl() returns properties in this | |
3759 | * format. | |
3760 | */ | |
3761 | nvlist_t *attrs; | |
3762 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
3763 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3764 | &pair) == 0); | |
3765 | } | |
3766 | ||
3767 | /* | |
3768 | * Check that this value is valid for this pool version | |
3769 | */ | |
3770 | switch (prop) { | |
3771 | case ZFS_PROP_COMPRESSION: | |
3772 | /* | |
3773 | * If the user specified gzip compression, make sure | |
3774 | * the SPA supports it. We ignore any errors here since | |
3775 | * we'll catch them later. | |
3776 | */ | |
3777 | if (nvpair_type(pair) == DATA_TYPE_UINT64 && | |
3778 | nvpair_value_uint64(pair, &intval) == 0) { | |
3779 | if (intval >= ZIO_COMPRESS_GZIP_1 && | |
3780 | intval <= ZIO_COMPRESS_GZIP_9 && | |
3781 | zfs_earlier_version(dsname, | |
3782 | SPA_VERSION_GZIP_COMPRESSION)) { | |
2e528b49 | 3783 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3784 | } |
3785 | ||
3786 | if (intval == ZIO_COMPRESS_ZLE && | |
3787 | zfs_earlier_version(dsname, | |
3788 | SPA_VERSION_ZLE_COMPRESSION)) | |
2e528b49 | 3789 | return (SET_ERROR(ENOTSUP)); |
428870ff | 3790 | |
9759c60f | 3791 | if (intval == ZIO_COMPRESS_LZ4) { |
9759c60f ED |
3792 | spa_t *spa; |
3793 | ||
3794 | if ((err = spa_open(dsname, &spa, FTAG)) != 0) | |
3795 | return (err); | |
3796 | ||
fa86b5db MA |
3797 | if (!spa_feature_is_enabled(spa, |
3798 | SPA_FEATURE_LZ4_COMPRESS)) { | |
9759c60f | 3799 | spa_close(spa, FTAG); |
2e528b49 | 3800 | return (SET_ERROR(ENOTSUP)); |
9759c60f ED |
3801 | } |
3802 | spa_close(spa, FTAG); | |
3803 | } | |
3804 | ||
428870ff BB |
3805 | /* |
3806 | * If this is a bootable dataset then | |
3807 | * verify that the compression algorithm | |
3808 | * is supported for booting. We must return | |
3809 | * something other than ENOTSUP since it | |
3810 | * implies a downrev pool version. | |
3811 | */ | |
3812 | if (zfs_is_bootfs(dsname) && | |
3813 | !BOOTFS_COMPRESS_VALID(intval)) { | |
2e528b49 | 3814 | return (SET_ERROR(ERANGE)); |
428870ff BB |
3815 | } |
3816 | } | |
3817 | break; | |
3818 | ||
3819 | case ZFS_PROP_COPIES: | |
3820 | if (zfs_earlier_version(dsname, SPA_VERSION_DITTO_BLOCKS)) | |
2e528b49 | 3821 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3822 | break; |
3823 | ||
3824 | case ZFS_PROP_DEDUP: | |
3825 | if (zfs_earlier_version(dsname, SPA_VERSION_DEDUP)) | |
2e528b49 | 3826 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3827 | break; |
3828 | ||
3829 | case ZFS_PROP_SHARESMB: | |
3830 | if (zpl_earlier_version(dsname, ZPL_VERSION_FUID)) | |
2e528b49 | 3831 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3832 | break; |
3833 | ||
3834 | case ZFS_PROP_ACLINHERIT: | |
3835 | if (nvpair_type(pair) == DATA_TYPE_UINT64 && | |
3836 | nvpair_value_uint64(pair, &intval) == 0) { | |
3837 | if (intval == ZFS_ACL_PASSTHROUGH_X && | |
3838 | zfs_earlier_version(dsname, | |
3839 | SPA_VERSION_PASSTHROUGH_X)) | |
2e528b49 | 3840 | return (SET_ERROR(ENOTSUP)); |
428870ff BB |
3841 | } |
3842 | break; | |
e75c13c3 BB |
3843 | default: |
3844 | break; | |
428870ff BB |
3845 | } |
3846 | ||
3847 | return (zfs_secpolicy_setprop(dsname, prop, pair, CRED())); | |
3848 | } | |
3849 | ||
3850 | /* | |
3851 | * Removes properties from the given props list that fail permission checks | |
3852 | * needed to clear them and to restore them in case of a receive error. For each | |
3853 | * property, make sure we have both set and inherit permissions. | |
3854 | * | |
3855 | * Returns the first error encountered if any permission checks fail. If the | |
3856 | * caller provides a non-NULL errlist, it also gives the complete list of names | |
3857 | * of all the properties that failed a permission check along with the | |
3858 | * corresponding error numbers. The caller is responsible for freeing the | |
3859 | * returned errlist. | |
3860 | * | |
3861 | * If every property checks out successfully, zero is returned and the list | |
3862 | * pointed at by errlist is NULL. | |
3863 | */ | |
3864 | static int | |
3865 | zfs_check_clearable(char *dataset, nvlist_t *props, nvlist_t **errlist) | |
b128c09f BB |
3866 | { |
3867 | zfs_cmd_t *zc; | |
428870ff BB |
3868 | nvpair_t *pair, *next_pair; |
3869 | nvlist_t *errors; | |
3870 | int err, rv = 0; | |
b128c09f BB |
3871 | |
3872 | if (props == NULL) | |
428870ff BB |
3873 | return (0); |
3874 | ||
3875 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3876 | ||
efcd79a8 | 3877 | zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP); |
b128c09f | 3878 | (void) strcpy(zc->zc_name, dataset); |
428870ff BB |
3879 | pair = nvlist_next_nvpair(props, NULL); |
3880 | while (pair != NULL) { | |
3881 | next_pair = nvlist_next_nvpair(props, pair); | |
3882 | ||
3883 | (void) strcpy(zc->zc_value, nvpair_name(pair)); | |
3884 | if ((err = zfs_check_settable(dataset, pair, CRED())) != 0 || | |
6f1ffb06 | 3885 | (err = zfs_secpolicy_inherit_prop(zc, NULL, CRED())) != 0) { |
428870ff BB |
3886 | VERIFY(nvlist_remove_nvpair(props, pair) == 0); |
3887 | VERIFY(nvlist_add_int32(errors, | |
3888 | zc->zc_value, err) == 0); | |
3889 | } | |
3890 | pair = next_pair; | |
b128c09f BB |
3891 | } |
3892 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
428870ff BB |
3893 | |
3894 | if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) { | |
3895 | nvlist_free(errors); | |
3896 | errors = NULL; | |
3897 | } else { | |
3898 | VERIFY(nvpair_value_int32(pair, &rv) == 0); | |
3899 | } | |
3900 | ||
3901 | if (errlist == NULL) | |
3902 | nvlist_free(errors); | |
3903 | else | |
3904 | *errlist = errors; | |
3905 | ||
3906 | return (rv); | |
3907 | } | |
3908 | ||
3909 | static boolean_t | |
3910 | propval_equals(nvpair_t *p1, nvpair_t *p2) | |
3911 | { | |
3912 | if (nvpair_type(p1) == DATA_TYPE_NVLIST) { | |
3913 | /* dsl_prop_get_all_impl() format */ | |
3914 | nvlist_t *attrs; | |
3915 | VERIFY(nvpair_value_nvlist(p1, &attrs) == 0); | |
3916 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3917 | &p1) == 0); | |
3918 | } | |
3919 | ||
3920 | if (nvpair_type(p2) == DATA_TYPE_NVLIST) { | |
3921 | nvlist_t *attrs; | |
3922 | VERIFY(nvpair_value_nvlist(p2, &attrs) == 0); | |
3923 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3924 | &p2) == 0); | |
3925 | } | |
3926 | ||
3927 | if (nvpair_type(p1) != nvpair_type(p2)) | |
3928 | return (B_FALSE); | |
3929 | ||
3930 | if (nvpair_type(p1) == DATA_TYPE_STRING) { | |
3931 | char *valstr1, *valstr2; | |
3932 | ||
3933 | VERIFY(nvpair_value_string(p1, (char **)&valstr1) == 0); | |
3934 | VERIFY(nvpair_value_string(p2, (char **)&valstr2) == 0); | |
3935 | return (strcmp(valstr1, valstr2) == 0); | |
3936 | } else { | |
3937 | uint64_t intval1, intval2; | |
3938 | ||
3939 | VERIFY(nvpair_value_uint64(p1, &intval1) == 0); | |
3940 | VERIFY(nvpair_value_uint64(p2, &intval2) == 0); | |
3941 | return (intval1 == intval2); | |
3942 | } | |
b128c09f BB |
3943 | } |
3944 | ||
428870ff BB |
3945 | /* |
3946 | * Remove properties from props if they are not going to change (as determined | |
3947 | * by comparison with origprops). Remove them from origprops as well, since we | |
3948 | * do not need to clear or restore properties that won't change. | |
3949 | */ | |
3950 | static void | |
3951 | props_reduce(nvlist_t *props, nvlist_t *origprops) | |
3952 | { | |
3953 | nvpair_t *pair, *next_pair; | |
3954 | ||
3955 | if (origprops == NULL) | |
3956 | return; /* all props need to be received */ | |
3957 | ||
3958 | pair = nvlist_next_nvpair(props, NULL); | |
3959 | while (pair != NULL) { | |
3960 | const char *propname = nvpair_name(pair); | |
3961 | nvpair_t *match; | |
3962 | ||
3963 | next_pair = nvlist_next_nvpair(props, pair); | |
3964 | ||
3965 | if ((nvlist_lookup_nvpair(origprops, propname, | |
3966 | &match) != 0) || !propval_equals(pair, match)) | |
3967 | goto next; /* need to set received value */ | |
3968 | ||
3969 | /* don't clear the existing received value */ | |
3970 | (void) nvlist_remove_nvpair(origprops, match); | |
3971 | /* don't bother receiving the property */ | |
3972 | (void) nvlist_remove_nvpair(props, pair); | |
3973 | next: | |
3974 | pair = next_pair; | |
3975 | } | |
3976 | } | |
3977 | ||
3978 | #ifdef DEBUG | |
3979 | static boolean_t zfs_ioc_recv_inject_err; | |
3980 | #endif | |
3981 | ||
34dc7c2f BB |
3982 | /* |
3983 | * inputs: | |
3984 | * zc_name name of containing filesystem | |
3985 | * zc_nvlist_src{_size} nvlist of properties to apply | |
3986 | * zc_value name of snapshot to create | |
3987 | * zc_string name of clone origin (if DRR_FLAG_CLONE) | |
3988 | * zc_cookie file descriptor to recv from | |
3989 | * zc_begin_record the BEGIN record of the stream (not byteswapped) | |
3990 | * zc_guid force flag | |
572e2857 BB |
3991 | * zc_cleanup_fd cleanup-on-exit file descriptor |
3992 | * zc_action_handle handle for this guid/ds mapping (or zero on first call) | |
34dc7c2f BB |
3993 | * |
3994 | * outputs: | |
3995 | * zc_cookie number of bytes read | |
428870ff BB |
3996 | * zc_nvlist_dst{_size} error for each unapplied received property |
3997 | * zc_obj zprop_errflags_t | |
572e2857 | 3998 | * zc_action_handle handle for this guid/ds mapping |
34dc7c2f BB |
3999 | */ |
4000 | static int | |
4001 | zfs_ioc_recv(zfs_cmd_t *zc) | |
4002 | { | |
4003 | file_t *fp; | |
34dc7c2f | 4004 | dmu_recv_cookie_t drc; |
34dc7c2f | 4005 | boolean_t force = (boolean_t)zc->zc_guid; |
428870ff BB |
4006 | int fd; |
4007 | int error = 0; | |
4008 | int props_error = 0; | |
4009 | nvlist_t *errors; | |
34dc7c2f | 4010 | offset_t off; |
428870ff BB |
4011 | nvlist_t *props = NULL; /* sent properties */ |
4012 | nvlist_t *origprops = NULL; /* existing properties */ | |
13fe0198 | 4013 | char *origin = NULL; |
34dc7c2f BB |
4014 | char *tosnap; |
4015 | char tofs[ZFS_MAXNAMELEN]; | |
428870ff | 4016 | boolean_t first_recvd_props = B_FALSE; |
34dc7c2f BB |
4017 | |
4018 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
4019 | strchr(zc->zc_value, '@') == NULL || | |
4020 | strchr(zc->zc_value, '%')) | |
2e528b49 | 4021 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
4022 | |
4023 | (void) strcpy(tofs, zc->zc_value); | |
4024 | tosnap = strchr(tofs, '@'); | |
428870ff | 4025 | *tosnap++ = '\0'; |
34dc7c2f | 4026 | |
b8864a23 | 4027 | if (zc->zc_nvlist_src != 0 && |
34dc7c2f | 4028 | (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
9babb374 | 4029 | zc->zc_iflags, &props)) != 0) |
34dc7c2f BB |
4030 | return (error); |
4031 | ||
4032 | fd = zc->zc_cookie; | |
4033 | fp = getf(fd); | |
4034 | if (fp == NULL) { | |
4035 | nvlist_free(props); | |
2e528b49 | 4036 | return (SET_ERROR(EBADF)); |
34dc7c2f BB |
4037 | } |
4038 | ||
428870ff BB |
4039 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
4040 | ||
13fe0198 MA |
4041 | if (zc->zc_string[0]) |
4042 | origin = zc->zc_string; | |
4043 | ||
4044 | error = dmu_recv_begin(tofs, tosnap, | |
4045 | &zc->zc_begin_record, force, origin, &drc); | |
4046 | if (error != 0) | |
4047 | goto out; | |
4048 | ||
4049 | /* | |
4050 | * Set properties before we receive the stream so that they are applied | |
4051 | * to the new data. Note that we must call dmu_recv_stream() if | |
4052 | * dmu_recv_begin() succeeds. | |
4053 | */ | |
4054 | if (props != NULL && !drc.drc_newfs) { | |
4055 | if (spa_version(dsl_dataset_get_spa(drc.drc_ds)) >= | |
4056 | SPA_VERSION_RECVD_PROPS && | |
4057 | !dsl_prop_get_hasrecvd(tofs)) | |
428870ff | 4058 | first_recvd_props = B_TRUE; |
428870ff | 4059 | |
b128c09f | 4060 | /* |
428870ff BB |
4061 | * If new received properties are supplied, they are to |
4062 | * completely replace the existing received properties, so stash | |
4063 | * away the existing ones. | |
b128c09f | 4064 | */ |
13fe0198 | 4065 | if (dsl_prop_get_received(tofs, &origprops) == 0) { |
428870ff BB |
4066 | nvlist_t *errlist = NULL; |
4067 | /* | |
4068 | * Don't bother writing a property if its value won't | |
4069 | * change (and avoid the unnecessary security checks). | |
4070 | * | |
4071 | * The first receive after SPA_VERSION_RECVD_PROPS is a | |
4072 | * special case where we blow away all local properties | |
4073 | * regardless. | |
4074 | */ | |
4075 | if (!first_recvd_props) | |
4076 | props_reduce(props, origprops); | |
13fe0198 | 4077 | if (zfs_check_clearable(tofs, origprops, &errlist) != 0) |
428870ff BB |
4078 | (void) nvlist_merge(errors, errlist, 0); |
4079 | nvlist_free(errlist); | |
b128c09f | 4080 | |
13fe0198 MA |
4081 | if (clear_received_props(tofs, origprops, |
4082 | first_recvd_props ? NULL : props) != 0) | |
428870ff | 4083 | zc->zc_obj |= ZPROP_ERR_NOCLEAR; |
13fe0198 | 4084 | } else { |
428870ff BB |
4085 | zc->zc_obj |= ZPROP_ERR_NOCLEAR; |
4086 | } | |
13fe0198 MA |
4087 | } |
4088 | ||
4089 | if (props != NULL) { | |
4090 | props_error = dsl_prop_set_hasrecvd(tofs); | |
428870ff | 4091 | |
13fe0198 MA |
4092 | if (props_error == 0) { |
4093 | (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED, | |
4094 | props, errors); | |
4095 | } | |
428870ff BB |
4096 | } |
4097 | ||
6f1ffb06 MA |
4098 | if (zc->zc_nvlist_dst_size != 0 && |
4099 | (nvlist_smush(errors, zc->zc_nvlist_dst_size) != 0 || | |
4100 | put_nvlist(zc, errors) != 0)) { | |
b128c09f | 4101 | /* |
428870ff BB |
4102 | * Caller made zc->zc_nvlist_dst less than the minimum expected |
4103 | * size or supplied an invalid address. | |
b128c09f | 4104 | */ |
2e528b49 | 4105 | props_error = SET_ERROR(EINVAL); |
34dc7c2f BB |
4106 | } |
4107 | ||
34dc7c2f | 4108 | off = fp->f_offset; |
572e2857 BB |
4109 | error = dmu_recv_stream(&drc, fp->f_vnode, &off, zc->zc_cleanup_fd, |
4110 | &zc->zc_action_handle); | |
34dc7c2f | 4111 | |
45d1cae3 | 4112 | if (error == 0) { |
3558fd73 | 4113 | zfs_sb_t *zsb = NULL; |
b128c09f | 4114 | |
3558fd73 | 4115 | if (get_zfs_sb(tofs, &zsb) == 0) { |
45d1cae3 BB |
4116 | /* online recv */ |
4117 | int end_err; | |
b128c09f | 4118 | |
3558fd73 | 4119 | error = zfs_suspend_fs(zsb); |
45d1cae3 BB |
4120 | /* |
4121 | * If the suspend fails, then the recv_end will | |
4122 | * likely also fail, and clean up after itself. | |
4123 | */ | |
831baf06 | 4124 | end_err = dmu_recv_end(&drc, zsb); |
428870ff | 4125 | if (error == 0) |
3558fd73 | 4126 | error = zfs_resume_fs(zsb, tofs); |
45d1cae3 | 4127 | error = error ? error : end_err; |
2cf7f52b | 4128 | deactivate_super(zsb->z_sb); |
b128c09f | 4129 | } else { |
831baf06 | 4130 | error = dmu_recv_end(&drc, NULL); |
34dc7c2f | 4131 | } |
34dc7c2f BB |
4132 | } |
4133 | ||
4134 | zc->zc_cookie = off - fp->f_offset; | |
4135 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
4136 | fp->f_offset = off; | |
4137 | ||
428870ff BB |
4138 | #ifdef DEBUG |
4139 | if (zfs_ioc_recv_inject_err) { | |
4140 | zfs_ioc_recv_inject_err = B_FALSE; | |
4141 | error = 1; | |
4142 | } | |
4143 | #endif | |
ba6a2402 BB |
4144 | |
4145 | #ifdef _KERNEL | |
4146 | if (error == 0) | |
4147 | zvol_create_minors(tofs); | |
4148 | #endif | |
4149 | ||
b128c09f BB |
4150 | /* |
4151 | * On error, restore the original props. | |
4152 | */ | |
13fe0198 MA |
4153 | if (error != 0 && props != NULL && !drc.drc_newfs) { |
4154 | if (clear_received_props(tofs, props, NULL) != 0) { | |
4155 | /* | |
4156 | * We failed to clear the received properties. | |
4157 | * Since we may have left a $recvd value on the | |
4158 | * system, we can't clear the $hasrecvd flag. | |
4159 | */ | |
428870ff | 4160 | zc->zc_obj |= ZPROP_ERR_NORESTORE; |
13fe0198 MA |
4161 | } else if (first_recvd_props) { |
4162 | dsl_prop_unset_hasrecvd(tofs); | |
428870ff BB |
4163 | } |
4164 | ||
4165 | if (origprops == NULL && !drc.drc_newfs) { | |
4166 | /* We failed to stash the original properties. */ | |
4167 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
4168 | } | |
4169 | ||
4170 | /* | |
4171 | * dsl_props_set() will not convert RECEIVED to LOCAL on or | |
4172 | * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL | |
4173 | * explictly if we're restoring local properties cleared in the | |
4174 | * first new-style receive. | |
4175 | */ | |
4176 | if (origprops != NULL && | |
4177 | zfs_set_prop_nvlist(tofs, (first_recvd_props ? | |
4178 | ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED), | |
4179 | origprops, NULL) != 0) { | |
4180 | /* | |
4181 | * We stashed the original properties but failed to | |
4182 | * restore them. | |
4183 | */ | |
4184 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
4185 | } | |
b128c09f BB |
4186 | } |
4187 | out: | |
b128c09f BB |
4188 | nvlist_free(props); |
4189 | nvlist_free(origprops); | |
428870ff | 4190 | nvlist_free(errors); |
34dc7c2f | 4191 | releasef(fd); |
428870ff BB |
4192 | |
4193 | if (error == 0) | |
4194 | error = props_error; | |
4195 | ||
34dc7c2f BB |
4196 | return (error); |
4197 | } | |
4198 | ||
4199 | /* | |
4200 | * inputs: | |
4201 | * zc_name name of snapshot to send | |
34dc7c2f | 4202 | * zc_cookie file descriptor to send stream to |
572e2857 BB |
4203 | * zc_obj fromorigin flag (mutually exclusive with zc_fromobj) |
4204 | * zc_sendobj objsetid of snapshot to send | |
4205 | * zc_fromobj objsetid of incremental fromsnap (may be zero) | |
330d06f9 MA |
4206 | * zc_guid if set, estimate size of stream only. zc_cookie is ignored. |
4207 | * output size in zc_objset_type. | |
9b67f605 | 4208 | * zc_flags if =1, WRITE_EMBEDDED records are permitted |
34dc7c2f | 4209 | * |
da536844 MA |
4210 | * outputs: |
4211 | * zc_objset_type estimated size, if zc_guid is set | |
34dc7c2f BB |
4212 | */ |
4213 | static int | |
4214 | zfs_ioc_send(zfs_cmd_t *zc) | |
4215 | { | |
34dc7c2f BB |
4216 | int error; |
4217 | offset_t off; | |
330d06f9 | 4218 | boolean_t estimate = (zc->zc_guid != 0); |
9b67f605 | 4219 | boolean_t embedok = (zc->zc_flags & 0x1); |
34dc7c2f | 4220 | |
13fe0198 MA |
4221 | if (zc->zc_obj != 0) { |
4222 | dsl_pool_t *dp; | |
4223 | dsl_dataset_t *tosnap; | |
34dc7c2f | 4224 | |
13fe0198 MA |
4225 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
4226 | if (error != 0) | |
572e2857 | 4227 | return (error); |
13fe0198 MA |
4228 | |
4229 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap); | |
4230 | if (error != 0) { | |
4231 | dsl_pool_rele(dp, FTAG); | |
34dc7c2f BB |
4232 | return (error); |
4233 | } | |
13fe0198 MA |
4234 | |
4235 | if (dsl_dir_is_clone(tosnap->ds_dir)) | |
4236 | zc->zc_fromobj = tosnap->ds_dir->dd_phys->dd_origin_obj; | |
4237 | dsl_dataset_rele(tosnap, FTAG); | |
4238 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
4239 | } |
4240 | ||
13fe0198 MA |
4241 | if (estimate) { |
4242 | dsl_pool_t *dp; | |
4243 | dsl_dataset_t *tosnap; | |
4244 | dsl_dataset_t *fromsnap = NULL; | |
4245 | ||
4246 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); | |
4247 | if (error != 0) | |
4248 | return (error); | |
6f1ffb06 | 4249 | |
13fe0198 MA |
4250 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &tosnap); |
4251 | if (error != 0) { | |
4252 | dsl_pool_rele(dp, FTAG); | |
4253 | return (error); | |
6f1ffb06 MA |
4254 | } |
4255 | ||
13fe0198 MA |
4256 | if (zc->zc_fromobj != 0) { |
4257 | error = dsl_dataset_hold_obj(dp, zc->zc_fromobj, | |
4258 | FTAG, &fromsnap); | |
4259 | if (error != 0) { | |
4260 | dsl_dataset_rele(tosnap, FTAG); | |
4261 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
4262 | return (error); |
4263 | } | |
4264 | } | |
34dc7c2f | 4265 | |
6f1ffb06 | 4266 | error = dmu_send_estimate(tosnap, fromsnap, |
330d06f9 | 4267 | &zc->zc_objset_type); |
13fe0198 MA |
4268 | |
4269 | if (fromsnap != NULL) | |
4270 | dsl_dataset_rele(fromsnap, FTAG); | |
4271 | dsl_dataset_rele(tosnap, FTAG); | |
4272 | dsl_pool_rele(dp, FTAG); | |
330d06f9 MA |
4273 | } else { |
4274 | file_t *fp = getf(zc->zc_cookie); | |
13fe0198 | 4275 | if (fp == NULL) |
2e528b49 | 4276 | return (SET_ERROR(EBADF)); |
34dc7c2f | 4277 | |
330d06f9 | 4278 | off = fp->f_offset; |
13fe0198 | 4279 | error = dmu_send_obj(zc->zc_name, zc->zc_sendobj, |
9b67f605 | 4280 | zc->zc_fromobj, embedok, zc->zc_cookie, fp->f_vnode, &off); |
34dc7c2f | 4281 | |
330d06f9 MA |
4282 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) |
4283 | fp->f_offset = off; | |
4284 | releasef(zc->zc_cookie); | |
4285 | } | |
34dc7c2f BB |
4286 | return (error); |
4287 | } | |
4288 | ||
37abac6d BP |
4289 | /* |
4290 | * inputs: | |
4291 | * zc_name name of snapshot on which to report progress | |
4292 | * zc_cookie file descriptor of send stream | |
4293 | * | |
4294 | * outputs: | |
4295 | * zc_cookie number of bytes written in send stream thus far | |
4296 | */ | |
4297 | static int | |
4298 | zfs_ioc_send_progress(zfs_cmd_t *zc) | |
4299 | { | |
13fe0198 | 4300 | dsl_pool_t *dp; |
37abac6d BP |
4301 | dsl_dataset_t *ds; |
4302 | dmu_sendarg_t *dsp = NULL; | |
4303 | int error; | |
4304 | ||
13fe0198 MA |
4305 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
4306 | if (error != 0) | |
37abac6d BP |
4307 | return (error); |
4308 | ||
13fe0198 MA |
4309 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &ds); |
4310 | if (error != 0) { | |
4311 | dsl_pool_rele(dp, FTAG); | |
4312 | return (error); | |
4313 | } | |
4314 | ||
37abac6d BP |
4315 | mutex_enter(&ds->ds_sendstream_lock); |
4316 | ||
4317 | /* | |
4318 | * Iterate over all the send streams currently active on this dataset. | |
4319 | * If there's one which matches the specified file descriptor _and_ the | |
4320 | * stream was started by the current process, return the progress of | |
4321 | * that stream. | |
4322 | */ | |
4323 | ||
4324 | for (dsp = list_head(&ds->ds_sendstreams); dsp != NULL; | |
4325 | dsp = list_next(&ds->ds_sendstreams, dsp)) { | |
4326 | if (dsp->dsa_outfd == zc->zc_cookie && | |
4327 | dsp->dsa_proc->group_leader == curproc->group_leader) | |
4328 | break; | |
4329 | } | |
4330 | ||
4331 | if (dsp != NULL) | |
4332 | zc->zc_cookie = *(dsp->dsa_off); | |
4333 | else | |
2e528b49 | 4334 | error = SET_ERROR(ENOENT); |
37abac6d BP |
4335 | |
4336 | mutex_exit(&ds->ds_sendstream_lock); | |
4337 | dsl_dataset_rele(ds, FTAG); | |
13fe0198 | 4338 | dsl_pool_rele(dp, FTAG); |
37abac6d BP |
4339 | return (error); |
4340 | } | |
4341 | ||
34dc7c2f BB |
4342 | static int |
4343 | zfs_ioc_inject_fault(zfs_cmd_t *zc) | |
4344 | { | |
4345 | int id, error; | |
4346 | ||
4347 | error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id, | |
4348 | &zc->zc_inject_record); | |
4349 | ||
4350 | if (error == 0) | |
4351 | zc->zc_guid = (uint64_t)id; | |
4352 | ||
4353 | return (error); | |
4354 | } | |
4355 | ||
4356 | static int | |
4357 | zfs_ioc_clear_fault(zfs_cmd_t *zc) | |
4358 | { | |
4359 | return (zio_clear_fault((int)zc->zc_guid)); | |
4360 | } | |
4361 | ||
4362 | static int | |
4363 | zfs_ioc_inject_list_next(zfs_cmd_t *zc) | |
4364 | { | |
4365 | int id = (int)zc->zc_guid; | |
4366 | int error; | |
4367 | ||
4368 | error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name), | |
4369 | &zc->zc_inject_record); | |
4370 | ||
4371 | zc->zc_guid = id; | |
4372 | ||
4373 | return (error); | |
4374 | } | |
4375 | ||
4376 | static int | |
4377 | zfs_ioc_error_log(zfs_cmd_t *zc) | |
4378 | { | |
4379 | spa_t *spa; | |
4380 | int error; | |
4381 | size_t count = (size_t)zc->zc_nvlist_dst_size; | |
4382 | ||
4383 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
4384 | return (error); | |
4385 | ||
4386 | error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst, | |
4387 | &count); | |
4388 | if (error == 0) | |
4389 | zc->zc_nvlist_dst_size = count; | |
4390 | else | |
4391 | zc->zc_nvlist_dst_size = spa_get_errlog_size(spa); | |
4392 | ||
4393 | spa_close(spa, FTAG); | |
4394 | ||
4395 | return (error); | |
4396 | } | |
4397 | ||
4398 | static int | |
4399 | zfs_ioc_clear(zfs_cmd_t *zc) | |
4400 | { | |
4401 | spa_t *spa; | |
4402 | vdev_t *vd; | |
34dc7c2f BB |
4403 | int error; |
4404 | ||
34dc7c2f | 4405 | /* |
b128c09f | 4406 | * On zpool clear we also fix up missing slogs |
34dc7c2f | 4407 | */ |
b128c09f BB |
4408 | mutex_enter(&spa_namespace_lock); |
4409 | spa = spa_lookup(zc->zc_name); | |
4410 | if (spa == NULL) { | |
4411 | mutex_exit(&spa_namespace_lock); | |
2e528b49 | 4412 | return (SET_ERROR(EIO)); |
b128c09f | 4413 | } |
428870ff | 4414 | if (spa_get_log_state(spa) == SPA_LOG_MISSING) { |
b128c09f | 4415 | /* we need to let spa_open/spa_load clear the chains */ |
428870ff | 4416 | spa_set_log_state(spa, SPA_LOG_CLEAR); |
34dc7c2f | 4417 | } |
428870ff | 4418 | spa->spa_last_open_failed = 0; |
b128c09f | 4419 | mutex_exit(&spa_namespace_lock); |
34dc7c2f | 4420 | |
428870ff BB |
4421 | if (zc->zc_cookie & ZPOOL_NO_REWIND) { |
4422 | error = spa_open(zc->zc_name, &spa, FTAG); | |
4423 | } else { | |
4424 | nvlist_t *policy; | |
4425 | nvlist_t *config = NULL; | |
4426 | ||
b8864a23 | 4427 | if (zc->zc_nvlist_src == 0) |
2e528b49 | 4428 | return (SET_ERROR(EINVAL)); |
428870ff BB |
4429 | |
4430 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
4431 | zc->zc_nvlist_src_size, zc->zc_iflags, &policy)) == 0) { | |
4432 | error = spa_open_rewind(zc->zc_name, &spa, FTAG, | |
4433 | policy, &config); | |
4434 | if (config != NULL) { | |
572e2857 BB |
4435 | int err; |
4436 | ||
4437 | if ((err = put_nvlist(zc, config)) != 0) | |
4438 | error = err; | |
428870ff BB |
4439 | nvlist_free(config); |
4440 | } | |
4441 | nvlist_free(policy); | |
4442 | } | |
4443 | } | |
4444 | ||
13fe0198 | 4445 | if (error != 0) |
b128c09f BB |
4446 | return (error); |
4447 | ||
428870ff | 4448 | spa_vdev_state_enter(spa, SCL_NONE); |
34dc7c2f BB |
4449 | |
4450 | if (zc->zc_guid == 0) { | |
4451 | vd = NULL; | |
b128c09f BB |
4452 | } else { |
4453 | vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE); | |
34dc7c2f | 4454 | if (vd == NULL) { |
b128c09f | 4455 | (void) spa_vdev_state_exit(spa, NULL, ENODEV); |
34dc7c2f | 4456 | spa_close(spa, FTAG); |
2e528b49 | 4457 | return (SET_ERROR(ENODEV)); |
34dc7c2f BB |
4458 | } |
4459 | } | |
4460 | ||
b128c09f BB |
4461 | vdev_clear(spa, vd); |
4462 | ||
4463 | (void) spa_vdev_state_exit(spa, NULL, 0); | |
34dc7c2f | 4464 | |
b128c09f BB |
4465 | /* |
4466 | * Resume any suspended I/Os. | |
4467 | */ | |
9babb374 | 4468 | if (zio_resume(spa) != 0) |
2e528b49 | 4469 | error = SET_ERROR(EIO); |
34dc7c2f BB |
4470 | |
4471 | spa_close(spa, FTAG); | |
4472 | ||
9babb374 | 4473 | return (error); |
34dc7c2f BB |
4474 | } |
4475 | ||
1bd201e7 CS |
4476 | static int |
4477 | zfs_ioc_pool_reopen(zfs_cmd_t *zc) | |
4478 | { | |
4479 | spa_t *spa; | |
4480 | int error; | |
4481 | ||
4482 | error = spa_open(zc->zc_name, &spa, FTAG); | |
13fe0198 | 4483 | if (error != 0) |
1bd201e7 CS |
4484 | return (error); |
4485 | ||
4486 | spa_vdev_state_enter(spa, SCL_NONE); | |
65947351 GW |
4487 | |
4488 | /* | |
4489 | * If a resilver is already in progress then set the | |
4490 | * spa_scrub_reopen flag to B_TRUE so that we don't restart | |
4491 | * the scan as a side effect of the reopen. Otherwise, let | |
4492 | * vdev_open() decided if a resilver is required. | |
4493 | */ | |
4494 | spa->spa_scrub_reopen = dsl_scan_resilvering(spa->spa_dsl_pool); | |
1bd201e7 | 4495 | vdev_reopen(spa->spa_root_vdev); |
65947351 GW |
4496 | spa->spa_scrub_reopen = B_FALSE; |
4497 | ||
1bd201e7 CS |
4498 | (void) spa_vdev_state_exit(spa, NULL, 0); |
4499 | spa_close(spa, FTAG); | |
4500 | return (0); | |
4501 | } | |
34dc7c2f BB |
4502 | /* |
4503 | * inputs: | |
4504 | * zc_name name of filesystem | |
4505 | * zc_value name of origin snapshot | |
4506 | * | |
428870ff BB |
4507 | * outputs: |
4508 | * zc_string name of conflicting snapshot, if there is one | |
34dc7c2f BB |
4509 | */ |
4510 | static int | |
4511 | zfs_ioc_promote(zfs_cmd_t *zc) | |
4512 | { | |
4513 | char *cp; | |
4514 | ||
4515 | /* | |
4516 | * We don't need to unmount *all* the origin fs's snapshots, but | |
4517 | * it's easier. | |
4518 | */ | |
4519 | cp = strchr(zc->zc_value, '@'); | |
4520 | if (cp) | |
4521 | *cp = '\0'; | |
4522 | (void) dmu_objset_find(zc->zc_value, | |
13fe0198 | 4523 | zfs_unmount_snap_cb, NULL, DS_FIND_SNAPSHOTS); |
428870ff | 4524 | return (dsl_dataset_promote(zc->zc_name, zc->zc_string)); |
34dc7c2f BB |
4525 | } |
4526 | ||
9babb374 BB |
4527 | /* |
4528 | * Retrieve a single {user|group}{used|quota}@... property. | |
4529 | * | |
4530 | * inputs: | |
4531 | * zc_name name of filesystem | |
4532 | * zc_objset_type zfs_userquota_prop_t | |
4533 | * zc_value domain name (eg. "S-1-234-567-89") | |
4534 | * zc_guid RID/UID/GID | |
4535 | * | |
4536 | * outputs: | |
4537 | * zc_cookie property value | |
4538 | */ | |
4539 | static int | |
4540 | zfs_ioc_userspace_one(zfs_cmd_t *zc) | |
4541 | { | |
3558fd73 | 4542 | zfs_sb_t *zsb; |
9babb374 BB |
4543 | int error; |
4544 | ||
4545 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
2e528b49 | 4546 | return (SET_ERROR(EINVAL)); |
9babb374 | 4547 | |
3558fd73 | 4548 | error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE); |
13fe0198 | 4549 | if (error != 0) |
9babb374 BB |
4550 | return (error); |
4551 | ||
3558fd73 | 4552 | error = zfs_userspace_one(zsb, |
9babb374 | 4553 | zc->zc_objset_type, zc->zc_value, zc->zc_guid, &zc->zc_cookie); |
3558fd73 | 4554 | zfs_sb_rele(zsb, FTAG); |
9babb374 BB |
4555 | |
4556 | return (error); | |
4557 | } | |
4558 | ||
4559 | /* | |
4560 | * inputs: | |
4561 | * zc_name name of filesystem | |
4562 | * zc_cookie zap cursor | |
4563 | * zc_objset_type zfs_userquota_prop_t | |
4564 | * zc_nvlist_dst[_size] buffer to fill (not really an nvlist) | |
4565 | * | |
4566 | * outputs: | |
4567 | * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t) | |
4568 | * zc_cookie zap cursor | |
4569 | */ | |
4570 | static int | |
4571 | zfs_ioc_userspace_many(zfs_cmd_t *zc) | |
4572 | { | |
3558fd73 | 4573 | zfs_sb_t *zsb; |
428870ff | 4574 | int bufsize = zc->zc_nvlist_dst_size; |
3558fd73 BB |
4575 | int error; |
4576 | void *buf; | |
428870ff BB |
4577 | |
4578 | if (bufsize <= 0) | |
2e528b49 | 4579 | return (SET_ERROR(ENOMEM)); |
9babb374 | 4580 | |
3558fd73 | 4581 | error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE); |
13fe0198 | 4582 | if (error != 0) |
9babb374 BB |
4583 | return (error); |
4584 | ||
2b8cad61 | 4585 | buf = vmem_alloc(bufsize, KM_SLEEP); |
9babb374 | 4586 | |
3558fd73 | 4587 | error = zfs_userspace_many(zsb, zc->zc_objset_type, &zc->zc_cookie, |
9babb374 BB |
4588 | buf, &zc->zc_nvlist_dst_size); |
4589 | ||
4590 | if (error == 0) { | |
4591 | error = xcopyout(buf, | |
4592 | (void *)(uintptr_t)zc->zc_nvlist_dst, | |
4593 | zc->zc_nvlist_dst_size); | |
4594 | } | |
2b8cad61 | 4595 | vmem_free(buf, bufsize); |
3558fd73 | 4596 | zfs_sb_rele(zsb, FTAG); |
9babb374 BB |
4597 | |
4598 | return (error); | |
4599 | } | |
4600 | ||
4601 | /* | |
4602 | * inputs: | |
4603 | * zc_name name of filesystem | |
4604 | * | |
4605 | * outputs: | |
4606 | * none | |
4607 | */ | |
4608 | static int | |
4609 | zfs_ioc_userspace_upgrade(zfs_cmd_t *zc) | |
4610 | { | |
4611 | objset_t *os; | |
428870ff | 4612 | int error = 0; |
3558fd73 | 4613 | zfs_sb_t *zsb; |
9babb374 | 4614 | |
3558fd73 BB |
4615 | if (get_zfs_sb(zc->zc_name, &zsb) == 0) { |
4616 | if (!dmu_objset_userused_enabled(zsb->z_os)) { | |
9babb374 BB |
4617 | /* |
4618 | * If userused is not enabled, it may be because the | |
4619 | * objset needs to be closed & reopened (to grow the | |
4620 | * objset_phys_t). Suspend/resume the fs will do that. | |
4621 | */ | |
3558fd73 | 4622 | error = zfs_suspend_fs(zsb); |
831baf06 KW |
4623 | if (error == 0) { |
4624 | dmu_objset_refresh_ownership(zsb->z_os, | |
4625 | zsb); | |
3558fd73 | 4626 | error = zfs_resume_fs(zsb, zc->zc_name); |
831baf06 | 4627 | } |
9babb374 BB |
4628 | } |
4629 | if (error == 0) | |
3558fd73 | 4630 | error = dmu_objset_userspace_upgrade(zsb->z_os); |
2cf7f52b | 4631 | deactivate_super(zsb->z_sb); |
9babb374 | 4632 | } else { |
428870ff BB |
4633 | /* XXX kind of reading contents without owning */ |
4634 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
13fe0198 | 4635 | if (error != 0) |
9babb374 BB |
4636 | return (error); |
4637 | ||
4638 | error = dmu_objset_userspace_upgrade(os); | |
428870ff | 4639 | dmu_objset_rele(os, FTAG); |
9babb374 BB |
4640 | } |
4641 | ||
4642 | return (error); | |
4643 | } | |
4644 | ||
34dc7c2f BB |
4645 | static int |
4646 | zfs_ioc_share(zfs_cmd_t *zc) | |
4647 | { | |
2e528b49 | 4648 | return (SET_ERROR(ENOSYS)); |
34dc7c2f BB |
4649 | } |
4650 | ||
9babb374 BB |
4651 | ace_t full_access[] = { |
4652 | {(uid_t)-1, ACE_ALL_PERMS, ACE_EVERYONE, 0} | |
4653 | }; | |
4654 | ||
572e2857 BB |
4655 | /* |
4656 | * inputs: | |
4657 | * zc_name name of containing filesystem | |
4658 | * zc_obj object # beyond which we want next in-use object # | |
4659 | * | |
4660 | * outputs: | |
4661 | * zc_obj next in-use object # | |
4662 | */ | |
4663 | static int | |
4664 | zfs_ioc_next_obj(zfs_cmd_t *zc) | |
4665 | { | |
4666 | objset_t *os = NULL; | |
4667 | int error; | |
4668 | ||
4669 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
13fe0198 | 4670 | if (error != 0) |
572e2857 BB |
4671 | return (error); |
4672 | ||
4673 | error = dmu_object_next(os, &zc->zc_obj, B_FALSE, | |
4674 | os->os_dsl_dataset->ds_phys->ds_prev_snap_txg); | |
4675 | ||
4676 | dmu_objset_rele(os, FTAG); | |
4677 | return (error); | |
4678 | } | |
4679 | ||
4680 | /* | |
4681 | * inputs: | |
4682 | * zc_name name of filesystem | |
4683 | * zc_value prefix name for snapshot | |
4684 | * zc_cleanup_fd cleanup-on-exit file descriptor for calling process | |
4685 | * | |
4686 | * outputs: | |
6f1ffb06 | 4687 | * zc_value short name of new snapshot |
572e2857 BB |
4688 | */ |
4689 | static int | |
4690 | zfs_ioc_tmp_snapshot(zfs_cmd_t *zc) | |
4691 | { | |
4692 | char *snap_name; | |
13fe0198 | 4693 | char *hold_name; |
572e2857 | 4694 | int error; |
13fe0198 | 4695 | minor_t minor; |
572e2857 | 4696 | |
13fe0198 MA |
4697 | error = zfs_onexit_fd_hold(zc->zc_cleanup_fd, &minor); |
4698 | if (error != 0) | |
572e2857 | 4699 | return (error); |
572e2857 | 4700 | |
13fe0198 MA |
4701 | snap_name = kmem_asprintf("%s-%016llx", zc->zc_value, |
4702 | (u_longlong_t)ddi_get_lbolt64()); | |
4703 | hold_name = kmem_asprintf("%%%s", zc->zc_value); | |
4704 | ||
4705 | error = dsl_dataset_snapshot_tmp(zc->zc_name, snap_name, minor, | |
4706 | hold_name); | |
4707 | if (error == 0) | |
4708 | (void) strcpy(zc->zc_value, snap_name); | |
572e2857 | 4709 | strfree(snap_name); |
13fe0198 MA |
4710 | strfree(hold_name); |
4711 | zfs_onexit_fd_rele(zc->zc_cleanup_fd); | |
4712 | return (error); | |
572e2857 BB |
4713 | } |
4714 | ||
4715 | /* | |
4716 | * inputs: | |
4717 | * zc_name name of "to" snapshot | |
4718 | * zc_value name of "from" snapshot | |
4719 | * zc_cookie file descriptor to write diff data on | |
4720 | * | |
4721 | * outputs: | |
4722 | * dmu_diff_record_t's to the file descriptor | |
4723 | */ | |
4724 | static int | |
4725 | zfs_ioc_diff(zfs_cmd_t *zc) | |
4726 | { | |
572e2857 BB |
4727 | file_t *fp; |
4728 | offset_t off; | |
4729 | int error; | |
4730 | ||
572e2857 | 4731 | fp = getf(zc->zc_cookie); |
13fe0198 | 4732 | if (fp == NULL) |
2e528b49 | 4733 | return (SET_ERROR(EBADF)); |
572e2857 BB |
4734 | |
4735 | off = fp->f_offset; | |
4736 | ||
13fe0198 | 4737 | error = dmu_diff(zc->zc_name, zc->zc_value, fp->f_vnode, &off); |
572e2857 BB |
4738 | |
4739 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
4740 | fp->f_offset = off; | |
4741 | releasef(zc->zc_cookie); | |
4742 | ||
572e2857 BB |
4743 | return (error); |
4744 | } | |
4745 | ||
9babb374 BB |
4746 | /* |
4747 | * Remove all ACL files in shares dir | |
4748 | */ | |
3c9609b3 | 4749 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
4750 | static int |
4751 | zfs_smb_acl_purge(znode_t *dzp) | |
4752 | { | |
4753 | zap_cursor_t zc; | |
4754 | zap_attribute_t zap; | |
3558fd73 | 4755 | zfs_sb_t *zsb = ZTOZSB(dzp); |
9babb374 BB |
4756 | int error; |
4757 | ||
3558fd73 | 4758 | for (zap_cursor_init(&zc, zsb->z_os, dzp->z_id); |
9babb374 BB |
4759 | (error = zap_cursor_retrieve(&zc, &zap)) == 0; |
4760 | zap_cursor_advance(&zc)) { | |
4761 | if ((error = VOP_REMOVE(ZTOV(dzp), zap.za_name, kcred, | |
4762 | NULL, 0)) != 0) | |
4763 | break; | |
4764 | } | |
4765 | zap_cursor_fini(&zc); | |
4766 | return (error); | |
4767 | } | |
3c9609b3 | 4768 | #endif /* HAVE_SMB_SHARE */ |
9babb374 BB |
4769 | |
4770 | static int | |
4771 | zfs_ioc_smb_acl(zfs_cmd_t *zc) | |
4772 | { | |
3c9609b3 | 4773 | #ifdef HAVE_SMB_SHARE |
9babb374 BB |
4774 | vnode_t *vp; |
4775 | znode_t *dzp; | |
4776 | vnode_t *resourcevp = NULL; | |
4777 | znode_t *sharedir; | |
3558fd73 | 4778 | zfs_sb_t *zsb; |
9babb374 BB |
4779 | nvlist_t *nvlist; |
4780 | char *src, *target; | |
4781 | vattr_t vattr; | |
4782 | vsecattr_t vsec; | |
4783 | int error = 0; | |
4784 | ||
4785 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
4786 | NO_FOLLOW, NULL, &vp)) != 0) | |
4787 | return (error); | |
4788 | ||
4789 | /* Now make sure mntpnt and dataset are ZFS */ | |
4790 | ||
4791 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
4792 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
4793 | zc->zc_name) != 0)) { | |
4794 | VN_RELE(vp); | |
2e528b49 | 4795 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
4796 | } |
4797 | ||
4798 | dzp = VTOZ(vp); | |
3558fd73 BB |
4799 | zsb = ZTOZSB(dzp); |
4800 | ZFS_ENTER(zsb); | |
9babb374 BB |
4801 | |
4802 | /* | |
4803 | * Create share dir if its missing. | |
4804 | */ | |
3558fd73 BB |
4805 | mutex_enter(&zsb->z_lock); |
4806 | if (zsb->z_shares_dir == 0) { | |
9babb374 BB |
4807 | dmu_tx_t *tx; |
4808 | ||
3558fd73 | 4809 | tx = dmu_tx_create(zsb->z_os); |
9babb374 BB |
4810 | dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, TRUE, |
4811 | ZFS_SHARES_DIR); | |
4812 | dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL); | |
4813 | error = dmu_tx_assign(tx, TXG_WAIT); | |
13fe0198 | 4814 | if (error != 0) { |
9babb374 BB |
4815 | dmu_tx_abort(tx); |
4816 | } else { | |
3558fd73 | 4817 | error = zfs_create_share_dir(zsb, tx); |
9babb374 BB |
4818 | dmu_tx_commit(tx); |
4819 | } | |
13fe0198 | 4820 | if (error != 0) { |
3558fd73 | 4821 | mutex_exit(&zsb->z_lock); |
9babb374 | 4822 | VN_RELE(vp); |
3558fd73 | 4823 | ZFS_EXIT(zsb); |
9babb374 BB |
4824 | return (error); |
4825 | } | |
4826 | } | |
3558fd73 | 4827 | mutex_exit(&zsb->z_lock); |
9babb374 | 4828 | |
3558fd73 BB |
4829 | ASSERT(zsb->z_shares_dir); |
4830 | if ((error = zfs_zget(zsb, zsb->z_shares_dir, &sharedir)) != 0) { | |
9babb374 | 4831 | VN_RELE(vp); |
3558fd73 | 4832 | ZFS_EXIT(zsb); |
9babb374 BB |
4833 | return (error); |
4834 | } | |
4835 | ||
4836 | switch (zc->zc_cookie) { | |
4837 | case ZFS_SMB_ACL_ADD: | |
4838 | vattr.va_mask = AT_MODE|AT_UID|AT_GID|AT_TYPE; | |
9babb374 BB |
4839 | vattr.va_mode = S_IFREG|0777; |
4840 | vattr.va_uid = 0; | |
4841 | vattr.va_gid = 0; | |
4842 | ||
4843 | vsec.vsa_mask = VSA_ACE; | |
4844 | vsec.vsa_aclentp = &full_access; | |
4845 | vsec.vsa_aclentsz = sizeof (full_access); | |
4846 | vsec.vsa_aclcnt = 1; | |
4847 | ||
4848 | error = VOP_CREATE(ZTOV(sharedir), zc->zc_string, | |
4849 | &vattr, EXCL, 0, &resourcevp, kcred, 0, NULL, &vsec); | |
4850 | if (resourcevp) | |
4851 | VN_RELE(resourcevp); | |
4852 | break; | |
4853 | ||
4854 | case ZFS_SMB_ACL_REMOVE: | |
4855 | error = VOP_REMOVE(ZTOV(sharedir), zc->zc_string, kcred, | |
4856 | NULL, 0); | |
4857 | break; | |
4858 | ||
4859 | case ZFS_SMB_ACL_RENAME: | |
4860 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
4861 | zc->zc_nvlist_src_size, zc->zc_iflags, &nvlist)) != 0) { | |
4862 | VN_RELE(vp); | |
3558fd73 | 4863 | ZFS_EXIT(zsb); |
9babb374 BB |
4864 | return (error); |
4865 | } | |
4866 | if (nvlist_lookup_string(nvlist, ZFS_SMB_ACL_SRC, &src) || | |
4867 | nvlist_lookup_string(nvlist, ZFS_SMB_ACL_TARGET, | |
4868 | &target)) { | |
4869 | VN_RELE(vp); | |
4870 | VN_RELE(ZTOV(sharedir)); | |
3558fd73 | 4871 | ZFS_EXIT(zsb); |
428870ff | 4872 | nvlist_free(nvlist); |
9babb374 BB |
4873 | return (error); |
4874 | } | |
4875 | error = VOP_RENAME(ZTOV(sharedir), src, ZTOV(sharedir), target, | |
4876 | kcred, NULL, 0); | |
4877 | nvlist_free(nvlist); | |
4878 | break; | |
4879 | ||
4880 | case ZFS_SMB_ACL_PURGE: | |
4881 | error = zfs_smb_acl_purge(sharedir); | |
4882 | break; | |
4883 | ||
4884 | default: | |
2e528b49 | 4885 | error = SET_ERROR(EINVAL); |
9babb374 BB |
4886 | break; |
4887 | } | |
4888 | ||
4889 | VN_RELE(vp); | |
4890 | VN_RELE(ZTOV(sharedir)); | |
4891 | ||
3558fd73 | 4892 | ZFS_EXIT(zsb); |
9babb374 BB |
4893 | |
4894 | return (error); | |
325f0235 | 4895 | #else |
2e528b49 | 4896 | return (SET_ERROR(ENOTSUP)); |
3c9609b3 | 4897 | #endif /* HAVE_SMB_SHARE */ |
9babb374 BB |
4898 | } |
4899 | ||
45d1cae3 | 4900 | /* |
13fe0198 MA |
4901 | * innvl: { |
4902 | * "holds" -> { snapname -> holdname (string), ... } | |
4903 | * (optional) "cleanup_fd" -> fd (int32) | |
4904 | * } | |
45d1cae3 | 4905 | * |
13fe0198 MA |
4906 | * outnvl: { |
4907 | * snapname -> error value (int32) | |
4908 | * ... | |
4909 | * } | |
45d1cae3 | 4910 | */ |
13fe0198 | 4911 | /* ARGSUSED */ |
45d1cae3 | 4912 | static int |
13fe0198 | 4913 | zfs_ioc_hold(const char *pool, nvlist_t *args, nvlist_t *errlist) |
45d1cae3 | 4914 | { |
13fe0198 MA |
4915 | nvlist_t *holds; |
4916 | int cleanup_fd = -1; | |
572e2857 BB |
4917 | int error; |
4918 | minor_t minor = 0; | |
45d1cae3 | 4919 | |
13fe0198 MA |
4920 | error = nvlist_lookup_nvlist(args, "holds", &holds); |
4921 | if (error != 0) | |
2e528b49 | 4922 | return (SET_ERROR(EINVAL)); |
572e2857 | 4923 | |
13fe0198 MA |
4924 | if (nvlist_lookup_int32(args, "cleanup_fd", &cleanup_fd) == 0) { |
4925 | error = zfs_onexit_fd_hold(cleanup_fd, &minor); | |
4926 | if (error != 0) | |
572e2857 | 4927 | return (error); |
572e2857 | 4928 | } |
572e2857 | 4929 | |
13fe0198 MA |
4930 | error = dsl_dataset_user_hold(holds, minor, errlist); |
4931 | if (minor != 0) | |
4932 | zfs_onexit_fd_rele(cleanup_fd); | |
572e2857 | 4933 | return (error); |
45d1cae3 BB |
4934 | } |
4935 | ||
4936 | /* | |
13fe0198 | 4937 | * innvl is not used. |
45d1cae3 | 4938 | * |
13fe0198 MA |
4939 | * outnvl: { |
4940 | * holdname -> time added (uint64 seconds since epoch) | |
4941 | * ... | |
4942 | * } | |
45d1cae3 | 4943 | */ |
13fe0198 | 4944 | /* ARGSUSED */ |
45d1cae3 | 4945 | static int |
13fe0198 | 4946 | zfs_ioc_get_holds(const char *snapname, nvlist_t *args, nvlist_t *outnvl) |
45d1cae3 | 4947 | { |
13fe0198 | 4948 | return (dsl_dataset_get_holds(snapname, outnvl)); |
45d1cae3 BB |
4949 | } |
4950 | ||
4951 | /* | |
13fe0198 MA |
4952 | * innvl: { |
4953 | * snapname -> { holdname, ... } | |
4954 | * ... | |
4955 | * } | |
45d1cae3 | 4956 | * |
13fe0198 MA |
4957 | * outnvl: { |
4958 | * snapname -> error value (int32) | |
4959 | * ... | |
4960 | * } | |
45d1cae3 | 4961 | */ |
13fe0198 | 4962 | /* ARGSUSED */ |
45d1cae3 | 4963 | static int |
13fe0198 | 4964 | zfs_ioc_release(const char *pool, nvlist_t *holds, nvlist_t *errlist) |
45d1cae3 | 4965 | { |
13fe0198 | 4966 | return (dsl_dataset_user_release(holds, errlist)); |
45d1cae3 BB |
4967 | } |
4968 | ||
26685276 BB |
4969 | /* |
4970 | * inputs: | |
4971 | * zc_guid flags (ZEVENT_NONBLOCK) | |
9b101a73 | 4972 | * zc_cleanup_fd zevent file descriptor |
26685276 BB |
4973 | * |
4974 | * outputs: | |
4975 | * zc_nvlist_dst next nvlist event | |
4976 | * zc_cookie dropped events since last get | |
26685276 BB |
4977 | */ |
4978 | static int | |
4979 | zfs_ioc_events_next(zfs_cmd_t *zc) | |
4980 | { | |
4981 | zfs_zevent_t *ze; | |
4982 | nvlist_t *event = NULL; | |
4983 | minor_t minor; | |
4984 | uint64_t dropped = 0; | |
4985 | int error; | |
4986 | ||
4987 | error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze); | |
4988 | if (error != 0) | |
4989 | return (error); | |
4990 | ||
4991 | do { | |
baa40d45 BB |
4992 | error = zfs_zevent_next(ze, &event, |
4993 | &zc->zc_nvlist_dst_size, &dropped); | |
26685276 BB |
4994 | if (event != NULL) { |
4995 | zc->zc_cookie = dropped; | |
4996 | error = put_nvlist(zc, event); | |
baa40d45 | 4997 | nvlist_free(event); |
26685276 BB |
4998 | } |
4999 | ||
5000 | if (zc->zc_guid & ZEVENT_NONBLOCK) | |
5001 | break; | |
5002 | ||
5003 | if ((error == 0) || (error != ENOENT)) | |
5004 | break; | |
5005 | ||
5006 | error = zfs_zevent_wait(ze); | |
13fe0198 | 5007 | if (error != 0) |
26685276 BB |
5008 | break; |
5009 | } while (1); | |
5010 | ||
5011 | zfs_zevent_fd_rele(zc->zc_cleanup_fd); | |
5012 | ||
5013 | return (error); | |
5014 | } | |
5015 | ||
5016 | /* | |
5017 | * outputs: | |
5018 | * zc_cookie cleared events count | |
5019 | */ | |
5020 | static int | |
5021 | zfs_ioc_events_clear(zfs_cmd_t *zc) | |
5022 | { | |
5023 | int count; | |
5024 | ||
5025 | zfs_zevent_drain_all(&count); | |
5026 | zc->zc_cookie = count; | |
5027 | ||
d1d7e268 | 5028 | return (0); |
26685276 BB |
5029 | } |
5030 | ||
75e3ff58 BB |
5031 | /* |
5032 | * inputs: | |
5033 | * zc_guid eid | ZEVENT_SEEK_START | ZEVENT_SEEK_END | |
5034 | * zc_cleanup zevent file descriptor | |
5035 | */ | |
5036 | static int | |
5037 | zfs_ioc_events_seek(zfs_cmd_t *zc) | |
5038 | { | |
5039 | zfs_zevent_t *ze; | |
5040 | minor_t minor; | |
5041 | int error; | |
5042 | ||
5043 | error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze); | |
5044 | if (error != 0) | |
5045 | return (error); | |
5046 | ||
5047 | error = zfs_zevent_seek(ze, zc->zc_guid); | |
5048 | zfs_zevent_fd_rele(zc->zc_cleanup_fd); | |
5049 | ||
5050 | return (error); | |
5051 | } | |
5052 | ||
330d06f9 MA |
5053 | /* |
5054 | * inputs: | |
5055 | * zc_name name of new filesystem or snapshot | |
5056 | * zc_value full name of old snapshot | |
5057 | * | |
5058 | * outputs: | |
5059 | * zc_cookie space in bytes | |
5060 | * zc_objset_type compressed space in bytes | |
5061 | * zc_perm_action uncompressed space in bytes | |
5062 | */ | |
5063 | static int | |
5064 | zfs_ioc_space_written(zfs_cmd_t *zc) | |
5065 | { | |
5066 | int error; | |
13fe0198 | 5067 | dsl_pool_t *dp; |
330d06f9 MA |
5068 | dsl_dataset_t *new, *old; |
5069 | ||
13fe0198 | 5070 | error = dsl_pool_hold(zc->zc_name, FTAG, &dp); |
330d06f9 MA |
5071 | if (error != 0) |
5072 | return (error); | |
13fe0198 MA |
5073 | error = dsl_dataset_hold(dp, zc->zc_name, FTAG, &new); |
5074 | if (error != 0) { | |
5075 | dsl_pool_rele(dp, FTAG); | |
5076 | return (error); | |
5077 | } | |
5078 | error = dsl_dataset_hold(dp, zc->zc_value, FTAG, &old); | |
330d06f9 MA |
5079 | if (error != 0) { |
5080 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5081 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
5082 | return (error); |
5083 | } | |
5084 | ||
5085 | error = dsl_dataset_space_written(old, new, &zc->zc_cookie, | |
5086 | &zc->zc_objset_type, &zc->zc_perm_action); | |
5087 | dsl_dataset_rele(old, FTAG); | |
5088 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5089 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
5090 | return (error); |
5091 | } | |
5092 | ||
5093 | /* | |
6f1ffb06 MA |
5094 | * innvl: { |
5095 | * "firstsnap" -> snapshot name | |
5096 | * } | |
330d06f9 | 5097 | * |
6f1ffb06 MA |
5098 | * outnvl: { |
5099 | * "used" -> space in bytes | |
5100 | * "compressed" -> compressed space in bytes | |
5101 | * "uncompressed" -> uncompressed space in bytes | |
5102 | * } | |
330d06f9 MA |
5103 | */ |
5104 | static int | |
6f1ffb06 | 5105 | zfs_ioc_space_snaps(const char *lastsnap, nvlist_t *innvl, nvlist_t *outnvl) |
330d06f9 MA |
5106 | { |
5107 | int error; | |
13fe0198 | 5108 | dsl_pool_t *dp; |
330d06f9 | 5109 | dsl_dataset_t *new, *old; |
6f1ffb06 MA |
5110 | char *firstsnap; |
5111 | uint64_t used, comp, uncomp; | |
330d06f9 | 5112 | |
6f1ffb06 | 5113 | if (nvlist_lookup_string(innvl, "firstsnap", &firstsnap) != 0) |
2e528b49 | 5114 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 5115 | |
13fe0198 | 5116 | error = dsl_pool_hold(lastsnap, FTAG, &dp); |
330d06f9 MA |
5117 | if (error != 0) |
5118 | return (error); | |
13fe0198 MA |
5119 | |
5120 | error = dsl_dataset_hold(dp, lastsnap, FTAG, &new); | |
5121 | if (error != 0) { | |
5122 | dsl_pool_rele(dp, FTAG); | |
5123 | return (error); | |
5124 | } | |
5125 | error = dsl_dataset_hold(dp, firstsnap, FTAG, &old); | |
330d06f9 MA |
5126 | if (error != 0) { |
5127 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5128 | dsl_pool_rele(dp, FTAG); |
330d06f9 MA |
5129 | return (error); |
5130 | } | |
5131 | ||
6f1ffb06 | 5132 | error = dsl_dataset_space_wouldfree(old, new, &used, &comp, &uncomp); |
330d06f9 MA |
5133 | dsl_dataset_rele(old, FTAG); |
5134 | dsl_dataset_rele(new, FTAG); | |
13fe0198 | 5135 | dsl_pool_rele(dp, FTAG); |
6f1ffb06 MA |
5136 | fnvlist_add_uint64(outnvl, "used", used); |
5137 | fnvlist_add_uint64(outnvl, "compressed", comp); | |
5138 | fnvlist_add_uint64(outnvl, "uncompressed", uncomp); | |
330d06f9 MA |
5139 | return (error); |
5140 | } | |
5141 | ||
34dc7c2f | 5142 | /* |
6f1ffb06 MA |
5143 | * innvl: { |
5144 | * "fd" -> file descriptor to write stream to (int32) | |
5145 | * (optional) "fromsnap" -> full snap name to send an incremental from | |
9b67f605 MA |
5146 | * (optional) "embedok" -> (value ignored) |
5147 | * presence indicates DRR_WRITE_EMBEDDED records are permitted | |
6f1ffb06 MA |
5148 | * } |
5149 | * | |
5150 | * outnvl is unused | |
34dc7c2f | 5151 | */ |
6f1ffb06 MA |
5152 | /* ARGSUSED */ |
5153 | static int | |
5154 | zfs_ioc_send_new(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) | |
5155 | { | |
6f1ffb06 MA |
5156 | int error; |
5157 | offset_t off; | |
13fe0198 | 5158 | char *fromname = NULL; |
6f1ffb06 | 5159 | int fd; |
13fe0198 | 5160 | file_t *fp; |
9b67f605 | 5161 | boolean_t embedok; |
6f1ffb06 MA |
5162 | |
5163 | error = nvlist_lookup_int32(innvl, "fd", &fd); | |
5164 | if (error != 0) | |
2e528b49 | 5165 | return (SET_ERROR(EINVAL)); |
6f1ffb06 | 5166 | |
13fe0198 | 5167 | (void) nvlist_lookup_string(innvl, "fromsnap", &fromname); |
6f1ffb06 | 5168 | |
9b67f605 MA |
5169 | embedok = nvlist_exists(innvl, "embedok"); |
5170 | ||
13fe0198 | 5171 | if ((fp = getf(fd)) == NULL) |
2e528b49 | 5172 | return (SET_ERROR(EBADF)); |
6f1ffb06 MA |
5173 | |
5174 | off = fp->f_offset; | |
9b67f605 | 5175 | error = dmu_send(snapname, fromname, embedok, fd, fp->f_vnode, &off); |
6f1ffb06 MA |
5176 | |
5177 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
5178 | fp->f_offset = off; | |
13fe0198 | 5179 | |
6f1ffb06 | 5180 | releasef(fd); |
6f1ffb06 MA |
5181 | return (error); |
5182 | } | |
5183 | ||
5184 | /* | |
5185 | * Determine approximately how large a zfs send stream will be -- the number | |
5186 | * of bytes that will be written to the fd supplied to zfs_ioc_send_new(). | |
5187 | * | |
5188 | * innvl: { | |
5189 | * (optional) "fromsnap" -> full snap name to send an incremental from | |
5190 | * } | |
5191 | * | |
5192 | * outnvl: { | |
5193 | * "space" -> bytes of space (uint64) | |
5194 | * } | |
5195 | */ | |
5196 | static int | |
5197 | zfs_ioc_send_space(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl) | |
5198 | { | |
13fe0198 MA |
5199 | dsl_pool_t *dp; |
5200 | dsl_dataset_t *fromsnap = NULL; | |
5201 | dsl_dataset_t *tosnap; | |
6f1ffb06 MA |
5202 | int error; |
5203 | char *fromname; | |
5204 | uint64_t space; | |
5205 | ||
13fe0198 MA |
5206 | error = dsl_pool_hold(snapname, FTAG, &dp); |
5207 | if (error != 0) | |
6f1ffb06 MA |
5208 | return (error); |
5209 | ||
13fe0198 MA |
5210 | error = dsl_dataset_hold(dp, snapname, FTAG, &tosnap); |
5211 | if (error != 0) { | |
5212 | dsl_pool_rele(dp, FTAG); | |
5213 | return (error); | |
5214 | } | |
5215 | ||
6f1ffb06 MA |
5216 | error = nvlist_lookup_string(innvl, "fromsnap", &fromname); |
5217 | if (error == 0) { | |
13fe0198 MA |
5218 | error = dsl_dataset_hold(dp, fromname, FTAG, &fromsnap); |
5219 | if (error != 0) { | |
5220 | dsl_dataset_rele(tosnap, FTAG); | |
5221 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
5222 | return (error); |
5223 | } | |
5224 | } | |
5225 | ||
5226 | error = dmu_send_estimate(tosnap, fromsnap, &space); | |
5227 | fnvlist_add_uint64(outnvl, "space", space); | |
5228 | ||
5229 | if (fromsnap != NULL) | |
13fe0198 MA |
5230 | dsl_dataset_rele(fromsnap, FTAG); |
5231 | dsl_dataset_rele(tosnap, FTAG); | |
5232 | dsl_pool_rele(dp, FTAG); | |
6f1ffb06 MA |
5233 | return (error); |
5234 | } | |
5235 | ||
5236 | ||
5237 | static zfs_ioc_vec_t zfs_ioc_vec[ZFS_IOC_LAST - ZFS_IOC_FIRST]; | |
5238 | ||
5239 | static void | |
5240 | zfs_ioctl_register_legacy(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5241 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, | |
5242 | boolean_t log_history, zfs_ioc_poolcheck_t pool_check) | |
5243 | { | |
5244 | zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; | |
5245 | ||
5246 | ASSERT3U(ioc, >=, ZFS_IOC_FIRST); | |
5247 | ASSERT3U(ioc, <, ZFS_IOC_LAST); | |
5248 | ASSERT3P(vec->zvec_legacy_func, ==, NULL); | |
5249 | ASSERT3P(vec->zvec_func, ==, NULL); | |
5250 | ||
5251 | vec->zvec_legacy_func = func; | |
5252 | vec->zvec_secpolicy = secpolicy; | |
5253 | vec->zvec_namecheck = namecheck; | |
5254 | vec->zvec_allow_log = log_history; | |
5255 | vec->zvec_pool_check = pool_check; | |
5256 | } | |
5257 | ||
5258 | /* | |
5259 | * See the block comment at the beginning of this file for details on | |
5260 | * each argument to this function. | |
5261 | */ | |
5262 | static void | |
5263 | zfs_ioctl_register(const char *name, zfs_ioc_t ioc, zfs_ioc_func_t *func, | |
5264 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck, | |
5265 | zfs_ioc_poolcheck_t pool_check, boolean_t smush_outnvlist, | |
5266 | boolean_t allow_log) | |
5267 | { | |
5268 | zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST]; | |
5269 | ||
5270 | ASSERT3U(ioc, >=, ZFS_IOC_FIRST); | |
5271 | ASSERT3U(ioc, <, ZFS_IOC_LAST); | |
5272 | ASSERT3P(vec->zvec_legacy_func, ==, NULL); | |
5273 | ASSERT3P(vec->zvec_func, ==, NULL); | |
5274 | ||
5275 | /* if we are logging, the name must be valid */ | |
5276 | ASSERT(!allow_log || namecheck != NO_NAME); | |
5277 | ||
5278 | vec->zvec_name = name; | |
5279 | vec->zvec_func = func; | |
5280 | vec->zvec_secpolicy = secpolicy; | |
5281 | vec->zvec_namecheck = namecheck; | |
5282 | vec->zvec_pool_check = pool_check; | |
5283 | vec->zvec_smush_outnvlist = smush_outnvlist; | |
5284 | vec->zvec_allow_log = allow_log; | |
5285 | } | |
5286 | ||
5287 | static void | |
5288 | zfs_ioctl_register_pool(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5289 | zfs_secpolicy_func_t *secpolicy, boolean_t log_history, | |
5290 | zfs_ioc_poolcheck_t pool_check) | |
5291 | { | |
5292 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5293 | POOL_NAME, log_history, pool_check); | |
5294 | } | |
5295 | ||
5296 | static void | |
5297 | zfs_ioctl_register_dataset_nolog(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5298 | zfs_secpolicy_func_t *secpolicy, zfs_ioc_poolcheck_t pool_check) | |
5299 | { | |
5300 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5301 | DATASET_NAME, B_FALSE, pool_check); | |
5302 | } | |
5303 | ||
5304 | static void | |
5305 | zfs_ioctl_register_pool_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) | |
5306 | { | |
5307 | zfs_ioctl_register_legacy(ioc, func, zfs_secpolicy_config, | |
5308 | POOL_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5309 | } | |
5310 | ||
5311 | static void | |
5312 | zfs_ioctl_register_pool_meta(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5313 | zfs_secpolicy_func_t *secpolicy) | |
5314 | { | |
5315 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5316 | NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
5317 | } | |
5318 | ||
5319 | static void | |
5320 | zfs_ioctl_register_dataset_read_secpolicy(zfs_ioc_t ioc, | |
5321 | zfs_ioc_legacy_func_t *func, zfs_secpolicy_func_t *secpolicy) | |
5322 | { | |
5323 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5324 | DATASET_NAME, B_FALSE, POOL_CHECK_SUSPENDED); | |
5325 | } | |
5326 | ||
5327 | static void | |
5328 | zfs_ioctl_register_dataset_read(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func) | |
5329 | { | |
5330 | zfs_ioctl_register_dataset_read_secpolicy(ioc, func, | |
5331 | zfs_secpolicy_read); | |
5332 | } | |
5333 | ||
5334 | static void | |
5335 | zfs_ioctl_register_dataset_modify(zfs_ioc_t ioc, zfs_ioc_legacy_func_t *func, | |
5336 | zfs_secpolicy_func_t *secpolicy) | |
5337 | { | |
5338 | zfs_ioctl_register_legacy(ioc, func, secpolicy, | |
5339 | DATASET_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5340 | } | |
5341 | ||
5342 | static void | |
5343 | zfs_ioctl_init(void) | |
5344 | { | |
5345 | zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT, | |
5346 | zfs_ioc_snapshot, zfs_secpolicy_snapshot, POOL_NAME, | |
5347 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5348 | ||
5349 | zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY, | |
5350 | zfs_ioc_log_history, zfs_secpolicy_log_history, NO_NAME, | |
5351 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE); | |
5352 | ||
5353 | zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS, | |
5354 | zfs_ioc_space_snaps, zfs_secpolicy_read, DATASET_NAME, | |
5355 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5356 | ||
5357 | zfs_ioctl_register("send", ZFS_IOC_SEND_NEW, | |
5358 | zfs_ioc_send_new, zfs_secpolicy_send_new, DATASET_NAME, | |
5359 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5360 | ||
5361 | zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE, | |
5362 | zfs_ioc_send_space, zfs_secpolicy_read, DATASET_NAME, | |
5363 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5364 | ||
5365 | zfs_ioctl_register("create", ZFS_IOC_CREATE, | |
5366 | zfs_ioc_create, zfs_secpolicy_create_clone, DATASET_NAME, | |
5367 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5368 | ||
5369 | zfs_ioctl_register("clone", ZFS_IOC_CLONE, | |
5370 | zfs_ioc_clone, zfs_secpolicy_create_clone, DATASET_NAME, | |
5371 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5372 | ||
5373 | zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS, | |
5374 | zfs_ioc_destroy_snaps, zfs_secpolicy_destroy_snaps, POOL_NAME, | |
5375 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5376 | ||
13fe0198 MA |
5377 | zfs_ioctl_register("hold", ZFS_IOC_HOLD, |
5378 | zfs_ioc_hold, zfs_secpolicy_hold, POOL_NAME, | |
5379 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5380 | zfs_ioctl_register("release", ZFS_IOC_RELEASE, | |
5381 | zfs_ioc_release, zfs_secpolicy_release, POOL_NAME, | |
5382 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5383 | ||
5384 | zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS, | |
5385 | zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME, | |
5386 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5387 | ||
46ba1e59 MA |
5388 | zfs_ioctl_register("rollback", ZFS_IOC_ROLLBACK, |
5389 | zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME, | |
5390 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_TRUE); | |
5391 | ||
da536844 MA |
5392 | zfs_ioctl_register("bookmark", ZFS_IOC_BOOKMARK, |
5393 | zfs_ioc_bookmark, zfs_secpolicy_bookmark, POOL_NAME, | |
5394 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5395 | ||
5396 | zfs_ioctl_register("get_bookmarks", ZFS_IOC_GET_BOOKMARKS, | |
5397 | zfs_ioc_get_bookmarks, zfs_secpolicy_read, DATASET_NAME, | |
5398 | POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE); | |
5399 | ||
5400 | zfs_ioctl_register("destroy_bookmarks", ZFS_IOC_DESTROY_BOOKMARKS, | |
5401 | zfs_ioc_destroy_bookmarks, zfs_secpolicy_destroy_bookmarks, | |
5402 | POOL_NAME, | |
5403 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE); | |
5404 | ||
6f1ffb06 MA |
5405 | /* IOCTLS that use the legacy function signature */ |
5406 | ||
5407 | zfs_ioctl_register_legacy(ZFS_IOC_POOL_FREEZE, zfs_ioc_pool_freeze, | |
5408 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_READONLY); | |
5409 | ||
5410 | zfs_ioctl_register_pool(ZFS_IOC_POOL_CREATE, zfs_ioc_pool_create, | |
5411 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); | |
5412 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SCAN, | |
5413 | zfs_ioc_pool_scan); | |
5414 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_UPGRADE, | |
5415 | zfs_ioc_pool_upgrade); | |
5416 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ADD, | |
5417 | zfs_ioc_vdev_add); | |
5418 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_REMOVE, | |
5419 | zfs_ioc_vdev_remove); | |
5420 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SET_STATE, | |
5421 | zfs_ioc_vdev_set_state); | |
5422 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_ATTACH, | |
5423 | zfs_ioc_vdev_attach); | |
5424 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_DETACH, | |
5425 | zfs_ioc_vdev_detach); | |
5426 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETPATH, | |
5427 | zfs_ioc_vdev_setpath); | |
5428 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SETFRU, | |
5429 | zfs_ioc_vdev_setfru); | |
5430 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_SET_PROPS, | |
5431 | zfs_ioc_pool_set_props); | |
5432 | zfs_ioctl_register_pool_modify(ZFS_IOC_VDEV_SPLIT, | |
5433 | zfs_ioc_vdev_split); | |
5434 | zfs_ioctl_register_pool_modify(ZFS_IOC_POOL_REGUID, | |
5435 | zfs_ioc_pool_reguid); | |
5436 | ||
5437 | zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_CONFIGS, | |
5438 | zfs_ioc_pool_configs, zfs_secpolicy_none); | |
5439 | zfs_ioctl_register_pool_meta(ZFS_IOC_POOL_TRYIMPORT, | |
5440 | zfs_ioc_pool_tryimport, zfs_secpolicy_config); | |
5441 | zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_FAULT, | |
5442 | zfs_ioc_inject_fault, zfs_secpolicy_inject); | |
5443 | zfs_ioctl_register_pool_meta(ZFS_IOC_CLEAR_FAULT, | |
5444 | zfs_ioc_clear_fault, zfs_secpolicy_inject); | |
5445 | zfs_ioctl_register_pool_meta(ZFS_IOC_INJECT_LIST_NEXT, | |
5446 | zfs_ioc_inject_list_next, zfs_secpolicy_inject); | |
5447 | ||
5448 | /* | |
5449 | * pool destroy, and export don't log the history as part of | |
5450 | * zfsdev_ioctl, but rather zfs_ioc_pool_export | |
5451 | * does the logging of those commands. | |
5452 | */ | |
5453 | zfs_ioctl_register_pool(ZFS_IOC_POOL_DESTROY, zfs_ioc_pool_destroy, | |
5454 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_NONE); | |
5455 | zfs_ioctl_register_pool(ZFS_IOC_POOL_EXPORT, zfs_ioc_pool_export, | |
5456 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_NONE); | |
5457 | ||
5458 | zfs_ioctl_register_pool(ZFS_IOC_POOL_STATS, zfs_ioc_pool_stats, | |
5459 | zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); | |
5460 | zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_PROPS, zfs_ioc_pool_get_props, | |
5461 | zfs_secpolicy_read, B_FALSE, POOL_CHECK_NONE); | |
5462 | ||
5463 | zfs_ioctl_register_pool(ZFS_IOC_ERROR_LOG, zfs_ioc_error_log, | |
5464 | zfs_secpolicy_inject, B_FALSE, POOL_CHECK_SUSPENDED); | |
5465 | zfs_ioctl_register_pool(ZFS_IOC_DSOBJ_TO_DSNAME, | |
5466 | zfs_ioc_dsobj_to_dsname, | |
5467 | zfs_secpolicy_diff, B_FALSE, POOL_CHECK_SUSPENDED); | |
5468 | zfs_ioctl_register_pool(ZFS_IOC_POOL_GET_HISTORY, | |
5469 | zfs_ioc_pool_get_history, | |
5470 | zfs_secpolicy_config, B_FALSE, POOL_CHECK_SUSPENDED); | |
5471 | ||
5472 | zfs_ioctl_register_pool(ZFS_IOC_POOL_IMPORT, zfs_ioc_pool_import, | |
5473 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); | |
5474 | ||
5475 | zfs_ioctl_register_pool(ZFS_IOC_CLEAR, zfs_ioc_clear, | |
ac72fac3 | 5476 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_NONE); |
6f1ffb06 MA |
5477 | zfs_ioctl_register_pool(ZFS_IOC_POOL_REOPEN, zfs_ioc_pool_reopen, |
5478 | zfs_secpolicy_config, B_TRUE, POOL_CHECK_SUSPENDED); | |
5479 | ||
5480 | zfs_ioctl_register_dataset_read(ZFS_IOC_SPACE_WRITTEN, | |
5481 | zfs_ioc_space_written); | |
6f1ffb06 MA |
5482 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_RECVD_PROPS, |
5483 | zfs_ioc_objset_recvd_props); | |
5484 | zfs_ioctl_register_dataset_read(ZFS_IOC_NEXT_OBJ, | |
5485 | zfs_ioc_next_obj); | |
5486 | zfs_ioctl_register_dataset_read(ZFS_IOC_GET_FSACL, | |
5487 | zfs_ioc_get_fsacl); | |
5488 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_STATS, | |
5489 | zfs_ioc_objset_stats); | |
5490 | zfs_ioctl_register_dataset_read(ZFS_IOC_OBJSET_ZPLPROPS, | |
5491 | zfs_ioc_objset_zplprops); | |
5492 | zfs_ioctl_register_dataset_read(ZFS_IOC_DATASET_LIST_NEXT, | |
5493 | zfs_ioc_dataset_list_next); | |
5494 | zfs_ioctl_register_dataset_read(ZFS_IOC_SNAPSHOT_LIST_NEXT, | |
5495 | zfs_ioc_snapshot_list_next); | |
5496 | zfs_ioctl_register_dataset_read(ZFS_IOC_SEND_PROGRESS, | |
5497 | zfs_ioc_send_progress); | |
5498 | ||
5499 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_DIFF, | |
5500 | zfs_ioc_diff, zfs_secpolicy_diff); | |
5501 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_STATS, | |
5502 | zfs_ioc_obj_to_stats, zfs_secpolicy_diff); | |
5503 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_OBJ_TO_PATH, | |
5504 | zfs_ioc_obj_to_path, zfs_secpolicy_diff); | |
5505 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_ONE, | |
5506 | zfs_ioc_userspace_one, zfs_secpolicy_userspace_one); | |
5507 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_USERSPACE_MANY, | |
5508 | zfs_ioc_userspace_many, zfs_secpolicy_userspace_many); | |
5509 | zfs_ioctl_register_dataset_read_secpolicy(ZFS_IOC_SEND, | |
5510 | zfs_ioc_send, zfs_secpolicy_send); | |
5511 | ||
5512 | zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_PROP, zfs_ioc_set_prop, | |
5513 | zfs_secpolicy_none); | |
5514 | zfs_ioctl_register_dataset_modify(ZFS_IOC_DESTROY, zfs_ioc_destroy, | |
5515 | zfs_secpolicy_destroy); | |
6f1ffb06 MA |
5516 | zfs_ioctl_register_dataset_modify(ZFS_IOC_RENAME, zfs_ioc_rename, |
5517 | zfs_secpolicy_rename); | |
5518 | zfs_ioctl_register_dataset_modify(ZFS_IOC_RECV, zfs_ioc_recv, | |
5519 | zfs_secpolicy_recv); | |
5520 | zfs_ioctl_register_dataset_modify(ZFS_IOC_PROMOTE, zfs_ioc_promote, | |
5521 | zfs_secpolicy_promote); | |
6f1ffb06 MA |
5522 | zfs_ioctl_register_dataset_modify(ZFS_IOC_INHERIT_PROP, |
5523 | zfs_ioc_inherit_prop, zfs_secpolicy_inherit_prop); | |
5524 | zfs_ioctl_register_dataset_modify(ZFS_IOC_SET_FSACL, zfs_ioc_set_fsacl, | |
5525 | zfs_secpolicy_set_fsacl); | |
5526 | ||
5527 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_SHARE, zfs_ioc_share, | |
5528 | zfs_secpolicy_share, POOL_CHECK_NONE); | |
5529 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_SMB_ACL, zfs_ioc_smb_acl, | |
5530 | zfs_secpolicy_smb_acl, POOL_CHECK_NONE); | |
5531 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_USERSPACE_UPGRADE, | |
5532 | zfs_ioc_userspace_upgrade, zfs_secpolicy_userspace_upgrade, | |
5533 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5534 | zfs_ioctl_register_dataset_nolog(ZFS_IOC_TMP_SNAPSHOT, | |
5535 | zfs_ioc_tmp_snapshot, zfs_secpolicy_tmp_snapshot, | |
5536 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY); | |
5537 | ||
5538 | /* | |
ba6a2402 | 5539 | * ZoL functions |
6f1ffb06 | 5540 | */ |
6f1ffb06 MA |
5541 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_NEXT, zfs_ioc_events_next, |
5542 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
5543 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_CLEAR, zfs_ioc_events_clear, | |
5544 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
75e3ff58 BB |
5545 | zfs_ioctl_register_legacy(ZFS_IOC_EVENTS_SEEK, zfs_ioc_events_seek, |
5546 | zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE); | |
6f1ffb06 | 5547 | } |
34dc7c2f | 5548 | |
9babb374 | 5549 | int |
572e2857 BB |
5550 | pool_status_check(const char *name, zfs_ioc_namecheck_t type, |
5551 | zfs_ioc_poolcheck_t check) | |
9babb374 BB |
5552 | { |
5553 | spa_t *spa; | |
5554 | int error; | |
5555 | ||
5556 | ASSERT(type == POOL_NAME || type == DATASET_NAME); | |
5557 | ||
572e2857 BB |
5558 | if (check & POOL_CHECK_NONE) |
5559 | return (0); | |
5560 | ||
9babb374 BB |
5561 | error = spa_open(name, &spa, FTAG); |
5562 | if (error == 0) { | |
572e2857 | 5563 | if ((check & POOL_CHECK_SUSPENDED) && spa_suspended(spa)) |
2e528b49 | 5564 | error = SET_ERROR(EAGAIN); |
572e2857 | 5565 | else if ((check & POOL_CHECK_READONLY) && !spa_writeable(spa)) |
2e528b49 | 5566 | error = SET_ERROR(EROFS); |
9babb374 BB |
5567 | spa_close(spa, FTAG); |
5568 | } | |
5569 | return (error); | |
5570 | } | |
5571 | ||
325f0235 BB |
5572 | static void * |
5573 | zfsdev_get_state_impl(minor_t minor, enum zfsdev_state_type which) | |
5574 | { | |
5575 | zfsdev_state_t *zs; | |
5576 | ||
3937ab20 | 5577 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { |
325f0235 | 5578 | if (zs->zs_minor == minor) { |
3937ab20 | 5579 | smp_rmb(); |
325f0235 | 5580 | switch (which) { |
d1d7e268 MK |
5581 | case ZST_ONEXIT: |
5582 | return (zs->zs_onexit); | |
5583 | case ZST_ZEVENT: | |
5584 | return (zs->zs_zevent); | |
5585 | case ZST_ALL: | |
5586 | return (zs); | |
325f0235 BB |
5587 | } |
5588 | } | |
5589 | } | |
5590 | ||
d1d7e268 | 5591 | return (NULL); |
325f0235 BB |
5592 | } |
5593 | ||
5594 | void * | |
5595 | zfsdev_get_state(minor_t minor, enum zfsdev_state_type which) | |
5596 | { | |
5597 | void *ptr; | |
5598 | ||
325f0235 | 5599 | ptr = zfsdev_get_state_impl(minor, which); |
325f0235 | 5600 | |
d1d7e268 | 5601 | return (ptr); |
325f0235 BB |
5602 | } |
5603 | ||
5604 | minor_t | |
5605 | zfsdev_getminor(struct file *filp) | |
5606 | { | |
5607 | ASSERT(filp != NULL); | |
5608 | ASSERT(filp->private_data != NULL); | |
5609 | ||
5610 | return (((zfsdev_state_t *)filp->private_data)->zs_minor); | |
5611 | } | |
5612 | ||
572e2857 | 5613 | /* |
325f0235 BB |
5614 | * Find a free minor number. The zfsdev_state_list is expected to |
5615 | * be short since it is only a list of currently open file handles. | |
572e2857 BB |
5616 | */ |
5617 | minor_t | |
5618 | zfsdev_minor_alloc(void) | |
5619 | { | |
325f0235 | 5620 | static minor_t last_minor = 0; |
572e2857 BB |
5621 | minor_t m; |
5622 | ||
5623 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
5624 | ||
5625 | for (m = last_minor + 1; m != last_minor; m++) { | |
5626 | if (m > ZFSDEV_MAX_MINOR) | |
5627 | m = 1; | |
325f0235 | 5628 | if (zfsdev_get_state_impl(m, ZST_ALL) == NULL) { |
572e2857 BB |
5629 | last_minor = m; |
5630 | return (m); | |
5631 | } | |
5632 | } | |
5633 | ||
5634 | return (0); | |
5635 | } | |
5636 | ||
5637 | static int | |
325f0235 | 5638 | zfsdev_state_init(struct file *filp) |
572e2857 | 5639 | { |
3937ab20 | 5640 | zfsdev_state_t *zs, *zsprev = NULL; |
572e2857 | 5641 | minor_t minor; |
3937ab20 | 5642 | boolean_t newzs = B_FALSE; |
572e2857 BB |
5643 | |
5644 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
572e2857 | 5645 | |
d1d7e268 MK |
5646 | minor = zfsdev_minor_alloc(); |
5647 | if (minor == 0) | |
5648 | return (SET_ERROR(ENXIO)); | |
325f0235 | 5649 | |
3937ab20 TC |
5650 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { |
5651 | if (zs->zs_minor == -1) | |
5652 | break; | |
5653 | zsprev = zs; | |
5654 | } | |
5655 | ||
5656 | if (!zs) { | |
5657 | zs = kmem_zalloc(sizeof (zfsdev_state_t), KM_SLEEP); | |
5658 | newzs = B_TRUE; | |
5659 | } | |
572e2857 | 5660 | |
325f0235 | 5661 | zs->zs_file = filp; |
325f0235 | 5662 | filp->private_data = zs; |
572e2857 | 5663 | |
325f0235 BB |
5664 | zfs_onexit_init((zfs_onexit_t **)&zs->zs_onexit); |
5665 | zfs_zevent_init((zfs_zevent_t **)&zs->zs_zevent); | |
572e2857 | 5666 | |
3937ab20 TC |
5667 | |
5668 | /* | |
5669 | * In order to provide for lock-free concurrent read access | |
5670 | * to the minor list in zfsdev_get_state_impl(), new entries | |
5671 | * must be completely written before linking them into the | |
5672 | * list whereas existing entries are already linked; the last | |
5673 | * operation must be updating zs_minor (from -1 to the new | |
5674 | * value). | |
5675 | */ | |
5676 | if (newzs) { | |
5677 | zs->zs_minor = minor; | |
5678 | smp_wmb(); | |
5679 | zsprev->zs_next = zs; | |
5680 | } else { | |
5681 | smp_wmb(); | |
5682 | zs->zs_minor = minor; | |
5683 | } | |
572e2857 BB |
5684 | |
5685 | return (0); | |
5686 | } | |
5687 | ||
325f0235 BB |
5688 | static int |
5689 | zfsdev_state_destroy(struct file *filp) | |
572e2857 | 5690 | { |
325f0235 | 5691 | zfsdev_state_t *zs; |
572e2857 | 5692 | |
325f0235 BB |
5693 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); |
5694 | ASSERT(filp->private_data != NULL); | |
572e2857 | 5695 | |
325f0235 | 5696 | zs = filp->private_data; |
3937ab20 | 5697 | zs->zs_minor = -1; |
325f0235 BB |
5698 | zfs_onexit_destroy(zs->zs_onexit); |
5699 | zfs_zevent_destroy(zs->zs_zevent); | |
572e2857 | 5700 | |
d1d7e268 | 5701 | return (0); |
572e2857 BB |
5702 | } |
5703 | ||
5704 | static int | |
325f0235 | 5705 | zfsdev_open(struct inode *ino, struct file *filp) |
572e2857 | 5706 | { |
325f0235 | 5707 | int error; |
572e2857 | 5708 | |
325f0235 BB |
5709 | mutex_enter(&zfsdev_state_lock); |
5710 | error = zfsdev_state_init(filp); | |
5711 | mutex_exit(&zfsdev_state_lock); | |
572e2857 | 5712 | |
325f0235 | 5713 | return (-error); |
572e2857 BB |
5714 | } |
5715 | ||
5716 | static int | |
325f0235 | 5717 | zfsdev_release(struct inode *ino, struct file *filp) |
572e2857 | 5718 | { |
325f0235 | 5719 | int error; |
572e2857 BB |
5720 | |
5721 | mutex_enter(&zfsdev_state_lock); | |
325f0235 | 5722 | error = zfsdev_state_destroy(filp); |
572e2857 BB |
5723 | mutex_exit(&zfsdev_state_lock); |
5724 | ||
325f0235 | 5725 | return (-error); |
572e2857 BB |
5726 | } |
5727 | ||
325f0235 BB |
5728 | static long |
5729 | zfsdev_ioctl(struct file *filp, unsigned cmd, unsigned long arg) | |
34dc7c2f BB |
5730 | { |
5731 | zfs_cmd_t *zc; | |
6f1ffb06 | 5732 | uint_t vecnum; |
4fd762f8 | 5733 | int error, rc, flag = 0; |
6f1ffb06 | 5734 | const zfs_ioc_vec_t *vec; |
fb8e608d | 5735 | char *saved_poolname = NULL; |
6f1ffb06 MA |
5736 | nvlist_t *innvl = NULL; |
5737 | ||
5738 | vecnum = cmd - ZFS_IOC_FIRST; | |
5739 | if (vecnum >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0])) | |
2e528b49 | 5740 | return (-SET_ERROR(EINVAL)); |
6f1ffb06 | 5741 | vec = &zfs_ioc_vec[vecnum]; |
34dc7c2f | 5742 | |
2e0358cb BB |
5743 | /* |
5744 | * The registered ioctl list may be sparse, verify that either | |
5745 | * a normal or legacy handler are registered. | |
5746 | */ | |
5747 | if (vec->zvec_func == NULL && vec->zvec_legacy_func == NULL) | |
5748 | return (-SET_ERROR(EINVAL)); | |
5749 | ||
efcd79a8 | 5750 | zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); |
34dc7c2f | 5751 | |
9babb374 | 5752 | error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag); |
6f1ffb06 | 5753 | if (error != 0) { |
2e528b49 | 5754 | error = SET_ERROR(EFAULT); |
6f1ffb06 MA |
5755 | goto out; |
5756 | } | |
34dc7c2f | 5757 | |
6f1ffb06 MA |
5758 | zc->zc_iflags = flag & FKIOCTL; |
5759 | if (zc->zc_nvlist_src_size != 0) { | |
5760 | error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
5761 | zc->zc_iflags, &innvl); | |
5762 | if (error != 0) | |
5763 | goto out; | |
5764 | } | |
34dc7c2f BB |
5765 | |
5766 | /* | |
5767 | * Ensure that all pool/dataset names are valid before we pass down to | |
5768 | * the lower layers. | |
5769 | */ | |
6f1ffb06 MA |
5770 | zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; |
5771 | switch (vec->zvec_namecheck) { | |
5772 | case POOL_NAME: | |
5773 | if (pool_namecheck(zc->zc_name, NULL, NULL) != 0) | |
2e528b49 | 5774 | error = SET_ERROR(EINVAL); |
6f1ffb06 | 5775 | else |
572e2857 | 5776 | error = pool_status_check(zc->zc_name, |
6f1ffb06 MA |
5777 | vec->zvec_namecheck, vec->zvec_pool_check); |
5778 | break; | |
34dc7c2f | 5779 | |
6f1ffb06 MA |
5780 | case DATASET_NAME: |
5781 | if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0) | |
2e528b49 | 5782 | error = SET_ERROR(EINVAL); |
6f1ffb06 | 5783 | else |
572e2857 | 5784 | error = pool_status_check(zc->zc_name, |
6f1ffb06 MA |
5785 | vec->zvec_namecheck, vec->zvec_pool_check); |
5786 | break; | |
34dc7c2f | 5787 | |
6f1ffb06 MA |
5788 | case NO_NAME: |
5789 | break; | |
34dc7c2f BB |
5790 | } |
5791 | ||
34dc7c2f | 5792 | |
6f1ffb06 MA |
5793 | if (error == 0 && !(flag & FKIOCTL)) |
5794 | error = vec->zvec_secpolicy(zc, innvl, CRED()); | |
5795 | ||
5796 | if (error != 0) | |
5797 | goto out; | |
5798 | ||
5799 | /* legacy ioctls can modify zc_name */ | |
4fd762f8 BB |
5800 | saved_poolname = strdup(zc->zc_name); |
5801 | if (saved_poolname == NULL) { | |
5802 | error = SET_ERROR(ENOMEM); | |
5803 | goto out; | |
5804 | } else { | |
5805 | saved_poolname[strcspn(saved_poolname, "/@#")] = '\0'; | |
5806 | } | |
6f1ffb06 MA |
5807 | |
5808 | if (vec->zvec_func != NULL) { | |
5809 | nvlist_t *outnvl; | |
5810 | int puterror = 0; | |
5811 | spa_t *spa; | |
5812 | nvlist_t *lognv = NULL; | |
5813 | ||
5814 | ASSERT(vec->zvec_legacy_func == NULL); | |
5815 | ||
5816 | /* | |
5817 | * Add the innvl to the lognv before calling the func, | |
5818 | * in case the func changes the innvl. | |
5819 | */ | |
5820 | if (vec->zvec_allow_log) { | |
5821 | lognv = fnvlist_alloc(); | |
5822 | fnvlist_add_string(lognv, ZPOOL_HIST_IOCTL, | |
5823 | vec->zvec_name); | |
5824 | if (!nvlist_empty(innvl)) { | |
5825 | fnvlist_add_nvlist(lognv, ZPOOL_HIST_INPUT_NVL, | |
5826 | innvl); | |
5827 | } | |
5828 | } | |
5829 | ||
79c76d5b | 5830 | outnvl = fnvlist_alloc(); |
6f1ffb06 MA |
5831 | error = vec->zvec_func(zc->zc_name, innvl, outnvl); |
5832 | ||
5833 | if (error == 0 && vec->zvec_allow_log && | |
5834 | spa_open(zc->zc_name, &spa, FTAG) == 0) { | |
5835 | if (!nvlist_empty(outnvl)) { | |
5836 | fnvlist_add_nvlist(lognv, ZPOOL_HIST_OUTPUT_NVL, | |
5837 | outnvl); | |
5838 | } | |
5839 | (void) spa_history_log_nvl(spa, lognv); | |
5840 | spa_close(spa, FTAG); | |
5841 | } | |
5842 | fnvlist_free(lognv); | |
5843 | ||
5844 | if (!nvlist_empty(outnvl) || zc->zc_nvlist_dst_size != 0) { | |
5845 | int smusherror = 0; | |
5846 | if (vec->zvec_smush_outnvlist) { | |
5847 | smusherror = nvlist_smush(outnvl, | |
5848 | zc->zc_nvlist_dst_size); | |
5849 | } | |
5850 | if (smusherror == 0) | |
5851 | puterror = put_nvlist(zc, outnvl); | |
5852 | } | |
5853 | ||
5854 | if (puterror != 0) | |
5855 | error = puterror; | |
5856 | ||
5857 | nvlist_free(outnvl); | |
5858 | } else { | |
5859 | error = vec->zvec_legacy_func(zc); | |
5860 | } | |
5861 | ||
5862 | out: | |
5863 | nvlist_free(innvl); | |
9babb374 | 5864 | rc = ddi_copyout(zc, (void *)arg, sizeof (zfs_cmd_t), flag); |
6f1ffb06 | 5865 | if (error == 0 && rc != 0) |
2e528b49 | 5866 | error = SET_ERROR(EFAULT); |
6f1ffb06 MA |
5867 | if (error == 0 && vec->zvec_allow_log) { |
5868 | char *s = tsd_get(zfs_allow_log_key); | |
5869 | if (s != NULL) | |
5870 | strfree(s); | |
fb8e608d TC |
5871 | (void) tsd_set(zfs_allow_log_key, saved_poolname); |
5872 | } else { | |
5873 | if (saved_poolname != NULL) | |
4fd762f8 | 5874 | strfree(saved_poolname); |
34dc7c2f BB |
5875 | } |
5876 | ||
5877 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
325f0235 | 5878 | return (-error); |
34dc7c2f BB |
5879 | } |
5880 | ||
325f0235 BB |
5881 | #ifdef CONFIG_COMPAT |
5882 | static long | |
5883 | zfsdev_compat_ioctl(struct file *filp, unsigned cmd, unsigned long arg) | |
34dc7c2f | 5884 | { |
d1d7e268 | 5885 | return (zfsdev_ioctl(filp, cmd, arg)); |
325f0235 BB |
5886 | } |
5887 | #else | |
d1d7e268 | 5888 | #define zfsdev_compat_ioctl NULL |
325f0235 | 5889 | #endif |
34dc7c2f | 5890 | |
325f0235 | 5891 | static const struct file_operations zfsdev_fops = { |
d1d7e268 MK |
5892 | .open = zfsdev_open, |
5893 | .release = zfsdev_release, | |
5894 | .unlocked_ioctl = zfsdev_ioctl, | |
5895 | .compat_ioctl = zfsdev_compat_ioctl, | |
5896 | .owner = THIS_MODULE, | |
325f0235 | 5897 | }; |
34dc7c2f | 5898 | |
325f0235 | 5899 | static struct miscdevice zfs_misc = { |
d1d7e268 MK |
5900 | .minor = MISC_DYNAMIC_MINOR, |
5901 | .name = ZFS_DRIVER, | |
5902 | .fops = &zfsdev_fops, | |
325f0235 | 5903 | }; |
34dc7c2f BB |
5904 | |
5905 | static int | |
325f0235 | 5906 | zfs_attach(void) |
34dc7c2f | 5907 | { |
325f0235 | 5908 | int error; |
34dc7c2f | 5909 | |
325f0235 | 5910 | mutex_init(&zfsdev_state_lock, NULL, MUTEX_DEFAULT, NULL); |
3937ab20 TC |
5911 | zfsdev_state_list = kmem_zalloc(sizeof (zfsdev_state_t), KM_SLEEP); |
5912 | zfsdev_state_list->zs_minor = -1; | |
34dc7c2f | 5913 | |
325f0235 | 5914 | error = misc_register(&zfs_misc); |
d1d7e268 | 5915 | if (error != 0) { |
325f0235 BB |
5916 | printk(KERN_INFO "ZFS: misc_register() failed %d\n", error); |
5917 | return (error); | |
5918 | } | |
34dc7c2f | 5919 | |
325f0235 | 5920 | return (0); |
34dc7c2f BB |
5921 | } |
5922 | ||
325f0235 BB |
5923 | static void |
5924 | zfs_detach(void) | |
34dc7c2f | 5925 | { |
325f0235 | 5926 | int error; |
3937ab20 | 5927 | zfsdev_state_t *zs, *zsprev = NULL; |
34dc7c2f | 5928 | |
325f0235 | 5929 | error = misc_deregister(&zfs_misc); |
13fe0198 | 5930 | if (error != 0) |
325f0235 | 5931 | printk(KERN_INFO "ZFS: misc_deregister() failed %d\n", error); |
34dc7c2f | 5932 | |
325f0235 | 5933 | mutex_destroy(&zfsdev_state_lock); |
3937ab20 TC |
5934 | |
5935 | for (zs = zfsdev_state_list; zs != NULL; zs = zs->zs_next) { | |
5936 | if (zsprev) | |
5937 | kmem_free(zsprev, sizeof (zfsdev_state_t)); | |
5938 | zsprev = zs; | |
5939 | } | |
5940 | if (zsprev) | |
5941 | kmem_free(zsprev, sizeof (zfsdev_state_t)); | |
34dc7c2f BB |
5942 | } |
5943 | ||
6f1ffb06 MA |
5944 | static void |
5945 | zfs_allow_log_destroy(void *arg) | |
5946 | { | |
5947 | char *poolname = arg; | |
5948 | strfree(poolname); | |
5949 | } | |
325f0235 BB |
5950 | |
5951 | #ifdef DEBUG | |
d1d7e268 | 5952 | #define ZFS_DEBUG_STR " (DEBUG mode)" |
325f0235 | 5953 | #else |
d1d7e268 | 5954 | #define ZFS_DEBUG_STR "" |
325f0235 | 5955 | #endif |
34dc7c2f BB |
5956 | |
5957 | int | |
5958 | _init(void) | |
5959 | { | |
5960 | int error; | |
5961 | ||
5962 | spa_init(FREAD | FWRITE); | |
5963 | zfs_init(); | |
34dc7c2f | 5964 | |
325f0235 BB |
5965 | if ((error = zvol_init()) != 0) |
5966 | goto out1; | |
5967 | ||
6f1ffb06 MA |
5968 | zfs_ioctl_init(); |
5969 | ||
325f0235 BB |
5970 | if ((error = zfs_attach()) != 0) |
5971 | goto out2; | |
34dc7c2f | 5972 | |
d5446cfc | 5973 | tsd_create(&zfs_fsyncer_key, NULL); |
6f1ffb06 MA |
5974 | tsd_create(&rrw_tsd_key, rrw_tsd_destroy); |
5975 | tsd_create(&zfs_allow_log_key, zfs_allow_log_destroy); | |
34dc7c2f | 5976 | |
4b5d425f | 5977 | printk(KERN_NOTICE "ZFS: Loaded module v%s-%s%s, " |
d1d7e268 MK |
5978 | "ZFS pool version %s, ZFS filesystem version %s\n", |
5979 | ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR, | |
5980 | SPA_VERSION_STRING, ZPL_VERSION_STRING); | |
b695c34e MM |
5981 | #ifndef CONFIG_FS_POSIX_ACL |
5982 | printk(KERN_NOTICE "ZFS: Posix ACLs disabled by kernel\n"); | |
5983 | #endif /* CONFIG_FS_POSIX_ACL */ | |
34dc7c2f BB |
5984 | |
5985 | return (0); | |
325f0235 BB |
5986 | |
5987 | out2: | |
5988 | (void) zvol_fini(); | |
5989 | out1: | |
5990 | zfs_fini(); | |
5991 | spa_fini(); | |
4b5d425f | 5992 | printk(KERN_NOTICE "ZFS: Failed to Load ZFS Filesystem v%s-%s%s" |
d1d7e268 MK |
5993 | ", rc = %d\n", ZFS_META_VERSION, ZFS_META_RELEASE, |
5994 | ZFS_DEBUG_STR, error); | |
325f0235 BB |
5995 | |
5996 | return (error); | |
34dc7c2f BB |
5997 | } |
5998 | ||
5999 | int | |
6000 | _fini(void) | |
6001 | { | |
325f0235 | 6002 | zfs_detach(); |
34dc7c2f BB |
6003 | zvol_fini(); |
6004 | zfs_fini(); | |
6005 | spa_fini(); | |
46e18b3f | 6006 | |
d5446cfc | 6007 | tsd_destroy(&zfs_fsyncer_key); |
3fc050aa | 6008 | tsd_destroy(&rrw_tsd_key); |
6f1ffb06 | 6009 | tsd_destroy(&zfs_allow_log_key); |
34dc7c2f | 6010 | |
4b5d425f | 6011 | printk(KERN_NOTICE "ZFS: Unloaded module v%s-%s%s\n", |
d1d7e268 | 6012 | ZFS_META_VERSION, ZFS_META_RELEASE, ZFS_DEBUG_STR); |
34dc7c2f | 6013 | |
325f0235 | 6014 | return (0); |
34dc7c2f | 6015 | } |
325f0235 BB |
6016 | |
6017 | #ifdef HAVE_SPL | |
6018 | spl_module_init(_init); | |
6019 | spl_module_exit(_fini); | |
6020 | ||
6021 | MODULE_DESCRIPTION("ZFS"); | |
6022 | MODULE_AUTHOR(ZFS_META_AUTHOR); | |
6023 | MODULE_LICENSE(ZFS_META_LICENSE); | |
99e349db | 6024 | MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE); |
325f0235 | 6025 | #endif /* HAVE_SPL */ |