]>
Commit | Line | Data |
---|---|---|
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 | */ | |
21 | ||
22 | /* | |
572e2857 | 23 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
341166c8 | 24 | * Copyright 2019 Joyent, Inc. |
c15d36c6 | 25 | * Copyright (c) 2011, 2020 by Delphix. All rights reserved. |
08b1b21d | 26 | * Copyright (c) 2012 DEY Storage Systems, Inc. All rights reserved. |
0cee2406 | 27 | * Copyright (c) 2012 Pawel Jakub Dawidek <pawel@dawidek.net>. |
b1118acb | 28 | * Copyright (c) 2013 Martin Matuska. All rights reserved. |
95fd54a1 | 29 | * Copyright (c) 2013 Steven Hartland. All rights reserved. |
bcb1a8a2 | 30 | * Copyright 2017 Nexenta Systems, Inc. |
23d70cde | 31 | * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com> |
84ddd4b0 | 32 | * Copyright 2017-2018 RackTop Systems. |
4c0883fb | 33 | * Copyright (c) 2019 Datto Inc. |
b868525b | 34 | * Copyright (c) 2019, loli10K <ezomori.nozomu@gmail.com> |
34dc7c2f BB |
35 | */ |
36 | ||
34dc7c2f BB |
37 | #include <ctype.h> |
38 | #include <errno.h> | |
34dc7c2f | 39 | #include <libintl.h> |
34dc7c2f BB |
40 | #include <stdio.h> |
41 | #include <stdlib.h> | |
42 | #include <strings.h> | |
43 | #include <unistd.h> | |
44 | #include <stddef.h> | |
45 | #include <zone.h> | |
46 | #include <fcntl.h> | |
47 | #include <sys/mntent.h> | |
34dc7c2f | 48 | #include <sys/mount.h> |
34dc7c2f BB |
49 | #include <pwd.h> |
50 | #include <grp.h> | |
51 | #include <stddef.h> | |
52 | #include <ucred.h> | |
be160928 | 53 | #ifdef HAVE_IDMAP |
9babb374 BB |
54 | #include <idmap.h> |
55 | #include <aclutils.h> | |
45d1cae3 | 56 | #include <directory.h> |
be160928 | 57 | #endif /* HAVE_IDMAP */ |
34dc7c2f | 58 | |
428870ff | 59 | #include <sys/dnode.h> |
34dc7c2f BB |
60 | #include <sys/spa.h> |
61 | #include <sys/zap.h> | |
b5256303 | 62 | #include <sys/dsl_crypt.h> |
34dc7c2f | 63 | #include <libzfs.h> |
e89f1295 | 64 | #include <libzutil.h> |
34dc7c2f BB |
65 | |
66 | #include "zfs_namecheck.h" | |
67 | #include "zfs_prop.h" | |
68 | #include "libzfs_impl.h" | |
6044cf59 | 69 | #include "libzfs.h" |
34dc7c2f BB |
70 | #include "zfs_deleg.h" |
71 | ||
9babb374 BB |
72 | static int userquota_propname_decode(const char *propname, boolean_t zoned, |
73 | zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp); | |
34dc7c2f BB |
74 | |
75 | /* | |
76 | * Given a single type (not a mask of types), return the type in a human | |
77 | * readable form. | |
78 | */ | |
79 | const char * | |
80 | zfs_type_to_name(zfs_type_t type) | |
81 | { | |
82 | switch (type) { | |
83 | case ZFS_TYPE_FILESYSTEM: | |
84 | return (dgettext(TEXT_DOMAIN, "filesystem")); | |
85 | case ZFS_TYPE_SNAPSHOT: | |
86 | return (dgettext(TEXT_DOMAIN, "snapshot")); | |
87 | case ZFS_TYPE_VOLUME: | |
88 | return (dgettext(TEXT_DOMAIN, "volume")); | |
23d70cde GM |
89 | case ZFS_TYPE_POOL: |
90 | return (dgettext(TEXT_DOMAIN, "pool")); | |
91 | case ZFS_TYPE_BOOKMARK: | |
92 | return (dgettext(TEXT_DOMAIN, "bookmark")); | |
e75c13c3 | 93 | default: |
23d70cde | 94 | assert(!"unhandled zfs_type_t"); |
34dc7c2f BB |
95 | } |
96 | ||
97 | return (NULL); | |
98 | } | |
99 | ||
34dc7c2f BB |
100 | /* |
101 | * Validate a ZFS path. This is used even before trying to open the dataset, to | |
9babb374 BB |
102 | * provide a more meaningful error message. We call zfs_error_aux() to |
103 | * explain exactly why the name was not valid. | |
34dc7c2f | 104 | */ |
572e2857 | 105 | int |
34dc7c2f BB |
106 | zfs_validate_name(libzfs_handle_t *hdl, const char *path, int type, |
107 | boolean_t modifying) | |
108 | { | |
109 | namecheck_err_t why; | |
110 | char what; | |
111 | ||
e0650345 DW |
112 | if (!(type & ZFS_TYPE_SNAPSHOT) && strchr(path, '@') != NULL) { |
113 | if (hdl != NULL) | |
114 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
115 | "snapshot delimiter '@' is not expected here")); | |
116 | return (0); | |
117 | } | |
118 | ||
119 | if (type == ZFS_TYPE_SNAPSHOT && strchr(path, '@') == NULL) { | |
120 | if (hdl != NULL) | |
121 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
cc1a1e17 | 122 | "missing '@' delimiter in snapshot name")); |
e0650345 DW |
123 | return (0); |
124 | } | |
125 | ||
126 | if (!(type & ZFS_TYPE_BOOKMARK) && strchr(path, '#') != NULL) { | |
127 | if (hdl != NULL) | |
128 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
129 | "bookmark delimiter '#' is not expected here")); | |
130 | return (0); | |
131 | } | |
132 | ||
133 | if (type == ZFS_TYPE_BOOKMARK && strchr(path, '#') == NULL) { | |
134 | if (hdl != NULL) | |
135 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
cc1a1e17 | 136 | "missing '#' delimiter in bookmark name")); |
e0650345 DW |
137 | return (0); |
138 | } | |
139 | ||
140 | if (modifying && strchr(path, '%') != NULL) { | |
141 | if (hdl != NULL) | |
142 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
143 | "invalid character %c in name"), '%'); | |
144 | return (0); | |
145 | } | |
146 | ||
aeacdefe | 147 | if (entity_namecheck(path, &why, &what) != 0) { |
34dc7c2f BB |
148 | if (hdl != NULL) { |
149 | switch (why) { | |
150 | case NAME_ERR_TOOLONG: | |
151 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
152 | "name is too long")); | |
153 | break; | |
154 | ||
155 | case NAME_ERR_LEADING_SLASH: | |
156 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
157 | "leading slash in name")); | |
158 | break; | |
159 | ||
160 | case NAME_ERR_EMPTY_COMPONENT: | |
161 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
e0650345 DW |
162 | "empty component or misplaced '@'" |
163 | " or '#' delimiter in name")); | |
34dc7c2f BB |
164 | break; |
165 | ||
166 | case NAME_ERR_TRAILING_SLASH: | |
167 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
168 | "trailing slash in name")); | |
169 | break; | |
170 | ||
171 | case NAME_ERR_INVALCHAR: | |
172 | zfs_error_aux(hdl, | |
173 | dgettext(TEXT_DOMAIN, "invalid character " | |
174 | "'%c' in name"), what); | |
175 | break; | |
176 | ||
aeacdefe | 177 | case NAME_ERR_MULTIPLE_DELIMITERS: |
34dc7c2f | 178 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
aeacdefe GM |
179 | "multiple '@' and/or '#' delimiters in " |
180 | "name")); | |
34dc7c2f BB |
181 | break; |
182 | ||
183 | case NAME_ERR_NOLETTER: | |
184 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
185 | "pool doesn't begin with a letter")); | |
186 | break; | |
187 | ||
188 | case NAME_ERR_RESERVED: | |
189 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
190 | "name is reserved")); | |
191 | break; | |
192 | ||
193 | case NAME_ERR_DISKLIKE: | |
194 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
195 | "reserved disk name")); | |
196 | break; | |
23d70cde | 197 | |
9c7da9a9 TJ |
198 | case NAME_ERR_SELF_REF: |
199 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
200 | "self reference, '.' is found in name")); | |
201 | break; | |
202 | ||
203 | case NAME_ERR_PARENT_REF: | |
204 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
205 | "parent reference, '..' is found in name")); | |
206 | break; | |
207 | ||
e75c13c3 | 208 | default: |
23d70cde GM |
209 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
210 | "(%d) not defined"), why); | |
e75c13c3 | 211 | break; |
34dc7c2f BB |
212 | } |
213 | } | |
214 | ||
215 | return (0); | |
216 | } | |
217 | ||
34dc7c2f BB |
218 | return (-1); |
219 | } | |
220 | ||
221 | int | |
222 | zfs_name_valid(const char *name, zfs_type_t type) | |
223 | { | |
224 | if (type == ZFS_TYPE_POOL) | |
225 | return (zpool_name_valid(NULL, B_FALSE, name)); | |
226 | return (zfs_validate_name(NULL, name, type, B_FALSE)); | |
227 | } | |
228 | ||
229 | /* | |
230 | * This function takes the raw DSL properties, and filters out the user-defined | |
231 | * properties into a separate nvlist. | |
232 | */ | |
233 | static nvlist_t * | |
234 | process_user_props(zfs_handle_t *zhp, nvlist_t *props) | |
235 | { | |
236 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
237 | nvpair_t *elem; | |
238 | nvlist_t *propval; | |
239 | nvlist_t *nvl; | |
240 | ||
241 | if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) { | |
242 | (void) no_memory(hdl); | |
243 | return (NULL); | |
244 | } | |
245 | ||
246 | elem = NULL; | |
247 | while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { | |
248 | if (!zfs_prop_user(nvpair_name(elem))) | |
249 | continue; | |
250 | ||
251 | verify(nvpair_value_nvlist(elem, &propval) == 0); | |
252 | if (nvlist_add_nvlist(nvl, nvpair_name(elem), propval) != 0) { | |
253 | nvlist_free(nvl); | |
254 | (void) no_memory(hdl); | |
255 | return (NULL); | |
256 | } | |
257 | } | |
258 | ||
259 | return (nvl); | |
260 | } | |
261 | ||
b128c09f BB |
262 | static zpool_handle_t * |
263 | zpool_add_handle(zfs_handle_t *zhp, const char *pool_name) | |
264 | { | |
265 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
266 | zpool_handle_t *zph; | |
267 | ||
268 | if ((zph = zpool_open_canfail(hdl, pool_name)) != NULL) { | |
269 | if (hdl->libzfs_pool_handles != NULL) | |
270 | zph->zpool_next = hdl->libzfs_pool_handles; | |
271 | hdl->libzfs_pool_handles = zph; | |
272 | } | |
273 | return (zph); | |
274 | } | |
275 | ||
276 | static zpool_handle_t * | |
277 | zpool_find_handle(zfs_handle_t *zhp, const char *pool_name, int len) | |
278 | { | |
279 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
280 | zpool_handle_t *zph = hdl->libzfs_pool_handles; | |
281 | ||
282 | while ((zph != NULL) && | |
283 | (strncmp(pool_name, zpool_get_name(zph), len) != 0)) | |
284 | zph = zph->zpool_next; | |
285 | return (zph); | |
286 | } | |
287 | ||
288 | /* | |
289 | * Returns a handle to the pool that contains the provided dataset. | |
290 | * If a handle to that pool already exists then that handle is returned. | |
291 | * Otherwise, a new handle is created and added to the list of handles. | |
292 | */ | |
293 | static zpool_handle_t * | |
294 | zpool_handle(zfs_handle_t *zhp) | |
295 | { | |
296 | char *pool_name; | |
297 | int len; | |
298 | zpool_handle_t *zph; | |
299 | ||
da536844 | 300 | len = strcspn(zhp->zfs_name, "/@#") + 1; |
b128c09f BB |
301 | pool_name = zfs_alloc(zhp->zfs_hdl, len); |
302 | (void) strlcpy(pool_name, zhp->zfs_name, len); | |
303 | ||
304 | zph = zpool_find_handle(zhp, pool_name, len); | |
305 | if (zph == NULL) | |
306 | zph = zpool_add_handle(zhp, pool_name); | |
307 | ||
308 | free(pool_name); | |
309 | return (zph); | |
310 | } | |
311 | ||
312 | void | |
313 | zpool_free_handles(libzfs_handle_t *hdl) | |
314 | { | |
315 | zpool_handle_t *next, *zph = hdl->libzfs_pool_handles; | |
316 | ||
317 | while (zph != NULL) { | |
318 | next = zph->zpool_next; | |
319 | zpool_close(zph); | |
320 | zph = next; | |
321 | } | |
322 | hdl->libzfs_pool_handles = NULL; | |
323 | } | |
324 | ||
34dc7c2f BB |
325 | /* |
326 | * Utility function to gather stats (objset and zpl) for the given object. | |
327 | */ | |
328 | static int | |
fb5f0bc8 | 329 | get_stats_ioctl(zfs_handle_t *zhp, zfs_cmd_t *zc) |
34dc7c2f | 330 | { |
34dc7c2f | 331 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
34dc7c2f | 332 | |
fb5f0bc8 | 333 | (void) strlcpy(zc->zc_name, zhp->zfs_name, sizeof (zc->zc_name)); |
34dc7c2f | 334 | |
b834b58a | 335 | while (zfs_ioctl(hdl, ZFS_IOC_OBJSET_STATS, zc) != 0) { |
34dc7c2f | 336 | if (errno == ENOMEM) { |
fb5f0bc8 | 337 | if (zcmd_expand_dst_nvlist(hdl, zc) != 0) { |
34dc7c2f BB |
338 | return (-1); |
339 | } | |
340 | } else { | |
34dc7c2f BB |
341 | return (-1); |
342 | } | |
343 | } | |
fb5f0bc8 BB |
344 | return (0); |
345 | } | |
34dc7c2f | 346 | |
428870ff BB |
347 | /* |
348 | * Utility function to get the received properties of the given object. | |
349 | */ | |
350 | static int | |
351 | get_recvd_props_ioctl(zfs_handle_t *zhp) | |
352 | { | |
353 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
354 | nvlist_t *recvdprops; | |
13fe0198 | 355 | zfs_cmd_t zc = {"\0"}; |
428870ff BB |
356 | int err; |
357 | ||
358 | if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) | |
359 | return (-1); | |
360 | ||
361 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
362 | ||
b834b58a | 363 | while (zfs_ioctl(hdl, ZFS_IOC_OBJSET_RECVD_PROPS, &zc) != 0) { |
428870ff BB |
364 | if (errno == ENOMEM) { |
365 | if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) { | |
366 | return (-1); | |
367 | } | |
368 | } else { | |
369 | zcmd_free_nvlists(&zc); | |
370 | return (-1); | |
371 | } | |
372 | } | |
373 | ||
374 | err = zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &recvdprops); | |
375 | zcmd_free_nvlists(&zc); | |
376 | if (err != 0) | |
377 | return (-1); | |
378 | ||
379 | nvlist_free(zhp->zfs_recvd_props); | |
380 | zhp->zfs_recvd_props = recvdprops; | |
381 | ||
382 | return (0); | |
383 | } | |
384 | ||
fb5f0bc8 BB |
385 | static int |
386 | put_stats_zhdl(zfs_handle_t *zhp, zfs_cmd_t *zc) | |
387 | { | |
388 | nvlist_t *allprops, *userprops; | |
34dc7c2f | 389 | |
fb5f0bc8 BB |
390 | zhp->zfs_dmustats = zc->zc_objset_stats; /* structure assignment */ |
391 | ||
392 | if (zcmd_read_dst_nvlist(zhp->zfs_hdl, zc, &allprops) != 0) { | |
34dc7c2f BB |
393 | return (-1); |
394 | } | |
395 | ||
9babb374 BB |
396 | /* |
397 | * XXX Why do we store the user props separately, in addition to | |
398 | * storing them in zfs_props? | |
399 | */ | |
34dc7c2f BB |
400 | if ((userprops = process_user_props(zhp, allprops)) == NULL) { |
401 | nvlist_free(allprops); | |
402 | return (-1); | |
403 | } | |
404 | ||
405 | nvlist_free(zhp->zfs_props); | |
406 | nvlist_free(zhp->zfs_user_props); | |
407 | ||
408 | zhp->zfs_props = allprops; | |
409 | zhp->zfs_user_props = userprops; | |
410 | ||
411 | return (0); | |
412 | } | |
413 | ||
fb5f0bc8 BB |
414 | static int |
415 | get_stats(zfs_handle_t *zhp) | |
416 | { | |
417 | int rc = 0; | |
13fe0198 | 418 | zfs_cmd_t zc = {"\0"}; |
fb5f0bc8 BB |
419 | |
420 | if (zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) | |
421 | return (-1); | |
422 | if (get_stats_ioctl(zhp, &zc) != 0) | |
423 | rc = -1; | |
424 | else if (put_stats_zhdl(zhp, &zc) != 0) | |
425 | rc = -1; | |
426 | zcmd_free_nvlists(&zc); | |
427 | return (rc); | |
428 | } | |
429 | ||
34dc7c2f BB |
430 | /* |
431 | * Refresh the properties currently stored in the handle. | |
432 | */ | |
433 | void | |
434 | zfs_refresh_properties(zfs_handle_t *zhp) | |
435 | { | |
436 | (void) get_stats(zhp); | |
437 | } | |
438 | ||
439 | /* | |
440 | * Makes a handle from the given dataset name. Used by zfs_open() and | |
441 | * zfs_iter_* to create child handles on the fly. | |
442 | */ | |
fb5f0bc8 BB |
443 | static int |
444 | make_dataset_handle_common(zfs_handle_t *zhp, zfs_cmd_t *zc) | |
34dc7c2f | 445 | { |
428870ff | 446 | if (put_stats_zhdl(zhp, zc) != 0) |
fb5f0bc8 | 447 | return (-1); |
34dc7c2f BB |
448 | |
449 | /* | |
450 | * We've managed to open the dataset and gather statistics. Determine | |
451 | * the high-level type. | |
452 | */ | |
453 | if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) | |
454 | zhp->zfs_head_type = ZFS_TYPE_VOLUME; | |
455 | else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) | |
456 | zhp->zfs_head_type = ZFS_TYPE_FILESYSTEM; | |
ff998d80 | 457 | else if (zhp->zfs_dmustats.dds_type == DMU_OST_OTHER) |
ba6a2402 | 458 | return (-1); |
34dc7c2f BB |
459 | else |
460 | abort(); | |
461 | ||
462 | if (zhp->zfs_dmustats.dds_is_snapshot) | |
463 | zhp->zfs_type = ZFS_TYPE_SNAPSHOT; | |
464 | else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) | |
465 | zhp->zfs_type = ZFS_TYPE_VOLUME; | |
466 | else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) | |
467 | zhp->zfs_type = ZFS_TYPE_FILESYSTEM; | |
468 | else | |
469 | abort(); /* we should never see any other types */ | |
470 | ||
428870ff BB |
471 | if ((zhp->zpool_hdl = zpool_handle(zhp)) == NULL) |
472 | return (-1); | |
473 | ||
fb5f0bc8 BB |
474 | return (0); |
475 | } | |
476 | ||
477 | zfs_handle_t * | |
478 | make_dataset_handle(libzfs_handle_t *hdl, const char *path) | |
479 | { | |
13fe0198 | 480 | zfs_cmd_t zc = {"\0"}; |
fb5f0bc8 | 481 | |
8111eb4a | 482 | zfs_handle_t *zhp = calloc(1, sizeof (zfs_handle_t)); |
fb5f0bc8 BB |
483 | |
484 | if (zhp == NULL) | |
485 | return (NULL); | |
486 | ||
487 | zhp->zfs_hdl = hdl; | |
488 | (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); | |
489 | if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) { | |
490 | free(zhp); | |
491 | return (NULL); | |
492 | } | |
493 | if (get_stats_ioctl(zhp, &zc) == -1) { | |
494 | zcmd_free_nvlists(&zc); | |
495 | free(zhp); | |
496 | return (NULL); | |
497 | } | |
498 | if (make_dataset_handle_common(zhp, &zc) == -1) { | |
499 | free(zhp); | |
500 | zhp = NULL; | |
501 | } | |
502 | zcmd_free_nvlists(&zc); | |
503 | return (zhp); | |
504 | } | |
505 | ||
330d06f9 | 506 | zfs_handle_t * |
fb5f0bc8 BB |
507 | make_dataset_handle_zc(libzfs_handle_t *hdl, zfs_cmd_t *zc) |
508 | { | |
8111eb4a | 509 | zfs_handle_t *zhp = calloc(1, sizeof (zfs_handle_t)); |
fb5f0bc8 BB |
510 | |
511 | if (zhp == NULL) | |
512 | return (NULL); | |
513 | ||
514 | zhp->zfs_hdl = hdl; | |
515 | (void) strlcpy(zhp->zfs_name, zc->zc_name, sizeof (zhp->zfs_name)); | |
516 | if (make_dataset_handle_common(zhp, zc) == -1) { | |
517 | free(zhp); | |
518 | return (NULL); | |
519 | } | |
34dc7c2f BB |
520 | return (zhp); |
521 | } | |
522 | ||
330d06f9 | 523 | zfs_handle_t * |
0cee2406 PJD |
524 | make_dataset_simple_handle_zc(zfs_handle_t *pzhp, zfs_cmd_t *zc) |
525 | { | |
8111eb4a | 526 | zfs_handle_t *zhp = calloc(1, sizeof (zfs_handle_t)); |
0cee2406 PJD |
527 | |
528 | if (zhp == NULL) | |
529 | return (NULL); | |
530 | ||
531 | zhp->zfs_hdl = pzhp->zfs_hdl; | |
532 | (void) strlcpy(zhp->zfs_name, zc->zc_name, sizeof (zhp->zfs_name)); | |
533 | zhp->zfs_head_type = pzhp->zfs_type; | |
534 | zhp->zfs_type = ZFS_TYPE_SNAPSHOT; | |
535 | zhp->zpool_hdl = zpool_handle(zhp); | |
536 | ||
537 | return (zhp); | |
538 | } | |
539 | ||
330d06f9 MA |
540 | zfs_handle_t * |
541 | zfs_handle_dup(zfs_handle_t *zhp_orig) | |
542 | { | |
8111eb4a | 543 | zfs_handle_t *zhp = calloc(1, sizeof (zfs_handle_t)); |
330d06f9 MA |
544 | |
545 | if (zhp == NULL) | |
546 | return (NULL); | |
547 | ||
548 | zhp->zfs_hdl = zhp_orig->zfs_hdl; | |
549 | zhp->zpool_hdl = zhp_orig->zpool_hdl; | |
550 | (void) strlcpy(zhp->zfs_name, zhp_orig->zfs_name, | |
551 | sizeof (zhp->zfs_name)); | |
552 | zhp->zfs_type = zhp_orig->zfs_type; | |
553 | zhp->zfs_head_type = zhp_orig->zfs_head_type; | |
554 | zhp->zfs_dmustats = zhp_orig->zfs_dmustats; | |
555 | if (zhp_orig->zfs_props != NULL) { | |
556 | if (nvlist_dup(zhp_orig->zfs_props, &zhp->zfs_props, 0) != 0) { | |
557 | (void) no_memory(zhp->zfs_hdl); | |
558 | zfs_close(zhp); | |
559 | return (NULL); | |
560 | } | |
561 | } | |
562 | if (zhp_orig->zfs_user_props != NULL) { | |
563 | if (nvlist_dup(zhp_orig->zfs_user_props, | |
564 | &zhp->zfs_user_props, 0) != 0) { | |
565 | (void) no_memory(zhp->zfs_hdl); | |
566 | zfs_close(zhp); | |
567 | return (NULL); | |
568 | } | |
569 | } | |
570 | if (zhp_orig->zfs_recvd_props != NULL) { | |
571 | if (nvlist_dup(zhp_orig->zfs_recvd_props, | |
572 | &zhp->zfs_recvd_props, 0)) { | |
573 | (void) no_memory(zhp->zfs_hdl); | |
574 | zfs_close(zhp); | |
575 | return (NULL); | |
576 | } | |
577 | } | |
578 | zhp->zfs_mntcheck = zhp_orig->zfs_mntcheck; | |
579 | if (zhp_orig->zfs_mntopts != NULL) { | |
580 | zhp->zfs_mntopts = zfs_strdup(zhp_orig->zfs_hdl, | |
581 | zhp_orig->zfs_mntopts); | |
582 | } | |
583 | zhp->zfs_props_table = zhp_orig->zfs_props_table; | |
584 | return (zhp); | |
585 | } | |
586 | ||
da536844 MA |
587 | boolean_t |
588 | zfs_bookmark_exists(const char *path) | |
589 | { | |
590 | nvlist_t *bmarks; | |
591 | nvlist_t *props; | |
eca7b760 | 592 | char fsname[ZFS_MAX_DATASET_NAME_LEN]; |
da536844 MA |
593 | char *bmark_name; |
594 | char *pound; | |
595 | int err; | |
596 | boolean_t rv; | |
597 | ||
da536844 MA |
598 | (void) strlcpy(fsname, path, sizeof (fsname)); |
599 | pound = strchr(fsname, '#'); | |
600 | if (pound == NULL) | |
601 | return (B_FALSE); | |
602 | ||
603 | *pound = '\0'; | |
604 | bmark_name = pound + 1; | |
605 | props = fnvlist_alloc(); | |
606 | err = lzc_get_bookmarks(fsname, props, &bmarks); | |
607 | nvlist_free(props); | |
608 | if (err != 0) { | |
609 | nvlist_free(bmarks); | |
610 | return (B_FALSE); | |
611 | } | |
612 | ||
613 | rv = nvlist_exists(bmarks, bmark_name); | |
614 | nvlist_free(bmarks); | |
615 | return (rv); | |
616 | } | |
617 | ||
618 | zfs_handle_t * | |
619 | make_bookmark_handle(zfs_handle_t *parent, const char *path, | |
620 | nvlist_t *bmark_props) | |
621 | { | |
8111eb4a | 622 | zfs_handle_t *zhp = calloc(1, sizeof (zfs_handle_t)); |
da536844 MA |
623 | |
624 | if (zhp == NULL) | |
625 | return (NULL); | |
626 | ||
627 | /* Fill in the name. */ | |
628 | zhp->zfs_hdl = parent->zfs_hdl; | |
629 | (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); | |
630 | ||
631 | /* Set the property lists. */ | |
632 | if (nvlist_dup(bmark_props, &zhp->zfs_props, 0) != 0) { | |
633 | free(zhp); | |
634 | return (NULL); | |
635 | } | |
636 | ||
637 | /* Set the types. */ | |
638 | zhp->zfs_head_type = parent->zfs_head_type; | |
639 | zhp->zfs_type = ZFS_TYPE_BOOKMARK; | |
640 | ||
641 | if ((zhp->zpool_hdl = zpool_handle(zhp)) == NULL) { | |
642 | nvlist_free(zhp->zfs_props); | |
643 | free(zhp); | |
644 | return (NULL); | |
645 | } | |
646 | ||
647 | return (zhp); | |
648 | } | |
649 | ||
aeacdefe GM |
650 | struct zfs_open_bookmarks_cb_data { |
651 | const char *path; | |
652 | zfs_handle_t *zhp; | |
653 | }; | |
654 | ||
655 | static int | |
656 | zfs_open_bookmarks_cb(zfs_handle_t *zhp, void *data) | |
657 | { | |
658 | struct zfs_open_bookmarks_cb_data *dp = data; | |
659 | ||
660 | /* | |
661 | * Is it the one we are looking for? | |
662 | */ | |
663 | if (strcmp(dp->path, zfs_get_name(zhp)) == 0) { | |
664 | /* | |
665 | * We found it. Save it and let the caller know we are done. | |
666 | */ | |
667 | dp->zhp = zhp; | |
668 | return (EEXIST); | |
669 | } | |
670 | ||
671 | /* | |
672 | * Not found. Close the handle and ask for another one. | |
673 | */ | |
674 | zfs_close(zhp); | |
675 | return (0); | |
676 | } | |
677 | ||
34dc7c2f | 678 | /* |
aeacdefe | 679 | * Opens the given snapshot, bookmark, filesystem, or volume. The 'types' |
34dc7c2f BB |
680 | * argument is a mask of acceptable types. The function will print an |
681 | * appropriate error message and return NULL if it can't be opened. | |
682 | */ | |
683 | zfs_handle_t * | |
684 | zfs_open(libzfs_handle_t *hdl, const char *path, int types) | |
685 | { | |
686 | zfs_handle_t *zhp; | |
687 | char errbuf[1024]; | |
aeacdefe | 688 | char *bookp; |
34dc7c2f BB |
689 | |
690 | (void) snprintf(errbuf, sizeof (errbuf), | |
691 | dgettext(TEXT_DOMAIN, "cannot open '%s'"), path); | |
692 | ||
693 | /* | |
694 | * Validate the name before we even try to open it. | |
695 | */ | |
aeacdefe | 696 | if (!zfs_validate_name(hdl, path, types, B_FALSE)) { |
34dc7c2f BB |
697 | (void) zfs_error(hdl, EZFS_INVALIDNAME, errbuf); |
698 | return (NULL); | |
699 | } | |
700 | ||
701 | /* | |
aeacdefe | 702 | * Bookmarks needs to be handled separately. |
34dc7c2f | 703 | */ |
aeacdefe GM |
704 | bookp = strchr(path, '#'); |
705 | if (bookp == NULL) { | |
706 | /* | |
707 | * Try to get stats for the dataset, which will tell us if it | |
708 | * exists. | |
709 | */ | |
710 | errno = 0; | |
711 | if ((zhp = make_dataset_handle(hdl, path)) == NULL) { | |
712 | (void) zfs_standard_error(hdl, errno, errbuf); | |
713 | return (NULL); | |
714 | } | |
715 | } else { | |
716 | char dsname[ZFS_MAX_DATASET_NAME_LEN]; | |
717 | zfs_handle_t *pzhp; | |
718 | struct zfs_open_bookmarks_cb_data cb_data = {path, NULL}; | |
719 | ||
720 | /* | |
721 | * We need to cut out '#' and everything after '#' | |
722 | * to get the parent dataset name only. | |
723 | */ | |
724 | assert(bookp - path < sizeof (dsname)); | |
725 | (void) strncpy(dsname, path, bookp - path); | |
726 | dsname[bookp - path] = '\0'; | |
727 | ||
728 | /* | |
729 | * Create handle for the parent dataset. | |
730 | */ | |
731 | errno = 0; | |
732 | if ((pzhp = make_dataset_handle(hdl, dsname)) == NULL) { | |
733 | (void) zfs_standard_error(hdl, errno, errbuf); | |
734 | return (NULL); | |
735 | } | |
736 | ||
737 | /* | |
738 | * Iterate bookmarks to find the right one. | |
739 | */ | |
740 | errno = 0; | |
741 | if ((zfs_iter_bookmarks(pzhp, zfs_open_bookmarks_cb, | |
742 | &cb_data) == 0) && (cb_data.zhp == NULL)) { | |
743 | (void) zfs_error(hdl, EZFS_NOENT, errbuf); | |
744 | zfs_close(pzhp); | |
745 | return (NULL); | |
746 | } | |
747 | if (cb_data.zhp == NULL) { | |
748 | (void) zfs_standard_error(hdl, errno, errbuf); | |
749 | zfs_close(pzhp); | |
750 | return (NULL); | |
751 | } | |
752 | zhp = cb_data.zhp; | |
753 | ||
754 | /* | |
755 | * Cleanup. | |
756 | */ | |
757 | zfs_close(pzhp); | |
34dc7c2f BB |
758 | } |
759 | ||
760 | if (!(types & zhp->zfs_type)) { | |
761 | (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); | |
762 | zfs_close(zhp); | |
763 | return (NULL); | |
764 | } | |
765 | ||
766 | return (zhp); | |
767 | } | |
768 | ||
769 | /* | |
770 | * Release a ZFS handle. Nothing to do but free the associated memory. | |
771 | */ | |
772 | void | |
773 | zfs_close(zfs_handle_t *zhp) | |
774 | { | |
775 | if (zhp->zfs_mntopts) | |
776 | free(zhp->zfs_mntopts); | |
777 | nvlist_free(zhp->zfs_props); | |
778 | nvlist_free(zhp->zfs_user_props); | |
428870ff | 779 | nvlist_free(zhp->zfs_recvd_props); |
34dc7c2f BB |
780 | free(zhp); |
781 | } | |
782 | ||
fb5f0bc8 BB |
783 | typedef struct mnttab_node { |
784 | struct mnttab mtn_mt; | |
785 | avl_node_t mtn_node; | |
786 | } mnttab_node_t; | |
787 | ||
788 | static int | |
789 | libzfs_mnttab_cache_compare(const void *arg1, const void *arg2) | |
790 | { | |
ee36c709 GN |
791 | const mnttab_node_t *mtn1 = (const mnttab_node_t *)arg1; |
792 | const mnttab_node_t *mtn2 = (const mnttab_node_t *)arg2; | |
fb5f0bc8 BB |
793 | int rv; |
794 | ||
795 | rv = strcmp(mtn1->mtn_mt.mnt_special, mtn2->mtn_mt.mnt_special); | |
796 | ||
ca577779 | 797 | return (TREE_ISIGN(rv)); |
fb5f0bc8 BB |
798 | } |
799 | ||
800 | void | |
801 | libzfs_mnttab_init(libzfs_handle_t *hdl) | |
802 | { | |
a10d50f9 | 803 | pthread_mutex_init(&hdl->libzfs_mnttab_cache_lock, NULL); |
fb5f0bc8 BB |
804 | assert(avl_numnodes(&hdl->libzfs_mnttab_cache) == 0); |
805 | avl_create(&hdl->libzfs_mnttab_cache, libzfs_mnttab_cache_compare, | |
806 | sizeof (mnttab_node_t), offsetof(mnttab_node_t, mtn_node)); | |
9babb374 BB |
807 | } |
808 | ||
65c7cc49 | 809 | static int |
9babb374 BB |
810 | libzfs_mnttab_update(libzfs_handle_t *hdl) |
811 | { | |
812 | struct mnttab entry; | |
fb5f0bc8 | 813 | |
fb5c53ea JL |
814 | /* Reopen MNTTAB to prevent reading stale data from open file */ |
815 | if (freopen(MNTTAB, "r", hdl->libzfs_mnttab) == NULL) | |
816 | return (ENOENT); | |
817 | ||
fb5f0bc8 BB |
818 | while (getmntent(hdl->libzfs_mnttab, &entry) == 0) { |
819 | mnttab_node_t *mtn; | |
74130450 | 820 | avl_index_t where; |
fb5f0bc8 BB |
821 | |
822 | if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) | |
823 | continue; | |
74130450 | 824 | |
fb5f0bc8 BB |
825 | mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); |
826 | mtn->mtn_mt.mnt_special = zfs_strdup(hdl, entry.mnt_special); | |
827 | mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, entry.mnt_mountp); | |
828 | mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, entry.mnt_fstype); | |
829 | mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, entry.mnt_mntopts); | |
74130450 BB |
830 | |
831 | /* Exclude duplicate mounts */ | |
832 | if (avl_find(&hdl->libzfs_mnttab_cache, mtn, &where) != NULL) { | |
833 | free(mtn->mtn_mt.mnt_special); | |
834 | free(mtn->mtn_mt.mnt_mountp); | |
835 | free(mtn->mtn_mt.mnt_fstype); | |
836 | free(mtn->mtn_mt.mnt_mntopts); | |
837 | free(mtn); | |
838 | continue; | |
839 | } | |
840 | ||
fb5f0bc8 BB |
841 | avl_add(&hdl->libzfs_mnttab_cache, mtn); |
842 | } | |
fb5c53ea JL |
843 | |
844 | return (0); | |
fb5f0bc8 BB |
845 | } |
846 | ||
847 | void | |
848 | libzfs_mnttab_fini(libzfs_handle_t *hdl) | |
849 | { | |
850 | void *cookie = NULL; | |
851 | mnttab_node_t *mtn; | |
852 | ||
23d70cde GM |
853 | while ((mtn = avl_destroy_nodes(&hdl->libzfs_mnttab_cache, &cookie)) |
854 | != NULL) { | |
fb5f0bc8 BB |
855 | free(mtn->mtn_mt.mnt_special); |
856 | free(mtn->mtn_mt.mnt_mountp); | |
857 | free(mtn->mtn_mt.mnt_fstype); | |
858 | free(mtn->mtn_mt.mnt_mntopts); | |
859 | free(mtn); | |
860 | } | |
861 | avl_destroy(&hdl->libzfs_mnttab_cache); | |
a10d50f9 | 862 | (void) pthread_mutex_destroy(&hdl->libzfs_mnttab_cache_lock); |
fb5f0bc8 BB |
863 | } |
864 | ||
9babb374 BB |
865 | void |
866 | libzfs_mnttab_cache(libzfs_handle_t *hdl, boolean_t enable) | |
867 | { | |
868 | hdl->libzfs_mnttab_enable = enable; | |
869 | } | |
870 | ||
fb5f0bc8 BB |
871 | int |
872 | libzfs_mnttab_find(libzfs_handle_t *hdl, const char *fsname, | |
873 | struct mnttab *entry) | |
874 | { | |
875 | mnttab_node_t find; | |
876 | mnttab_node_t *mtn; | |
a10d50f9 | 877 | int ret = ENOENT; |
fb5f0bc8 | 878 | |
9babb374 BB |
879 | if (!hdl->libzfs_mnttab_enable) { |
880 | struct mnttab srch = { 0 }; | |
881 | ||
882 | if (avl_numnodes(&hdl->libzfs_mnttab_cache)) | |
883 | libzfs_mnttab_fini(hdl); | |
fb5c53ea JL |
884 | |
885 | /* Reopen MNTTAB to prevent reading stale data from open file */ | |
886 | if (freopen(MNTTAB, "r", hdl->libzfs_mnttab) == NULL) | |
887 | return (ENOENT); | |
888 | ||
9babb374 BB |
889 | srch.mnt_special = (char *)fsname; |
890 | srch.mnt_fstype = MNTTYPE_ZFS; | |
891 | if (getmntany(hdl->libzfs_mnttab, entry, &srch) == 0) | |
892 | return (0); | |
893 | else | |
894 | return (ENOENT); | |
895 | } | |
896 | ||
a10d50f9 SR |
897 | pthread_mutex_lock(&hdl->libzfs_mnttab_cache_lock); |
898 | if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) { | |
899 | int error; | |
900 | ||
901 | if ((error = libzfs_mnttab_update(hdl)) != 0) { | |
902 | pthread_mutex_unlock(&hdl->libzfs_mnttab_cache_lock); | |
fb5c53ea | 903 | return (error); |
a10d50f9 SR |
904 | } |
905 | } | |
fb5f0bc8 BB |
906 | |
907 | find.mtn_mt.mnt_special = (char *)fsname; | |
908 | mtn = avl_find(&hdl->libzfs_mnttab_cache, &find, NULL); | |
909 | if (mtn) { | |
910 | *entry = mtn->mtn_mt; | |
a10d50f9 | 911 | ret = 0; |
fb5f0bc8 | 912 | } |
a10d50f9 SR |
913 | pthread_mutex_unlock(&hdl->libzfs_mnttab_cache_lock); |
914 | return (ret); | |
fb5f0bc8 BB |
915 | } |
916 | ||
917 | void | |
918 | libzfs_mnttab_add(libzfs_handle_t *hdl, const char *special, | |
919 | const char *mountp, const char *mntopts) | |
920 | { | |
921 | mnttab_node_t *mtn; | |
922 | ||
a10d50f9 SR |
923 | pthread_mutex_lock(&hdl->libzfs_mnttab_cache_lock); |
924 | if (avl_numnodes(&hdl->libzfs_mnttab_cache) != 0) { | |
925 | mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); | |
926 | mtn->mtn_mt.mnt_special = zfs_strdup(hdl, special); | |
927 | mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, mountp); | |
928 | mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, MNTTYPE_ZFS); | |
929 | mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, mntopts); | |
930 | /* | |
931 | * Another thread may have already added this entry | |
932 | * via libzfs_mnttab_update. If so we should skip it. | |
933 | */ | |
70e5ad31 JCML |
934 | if (avl_find(&hdl->libzfs_mnttab_cache, mtn, NULL) != NULL) { |
935 | free(mtn->mtn_mt.mnt_special); | |
936 | free(mtn->mtn_mt.mnt_mountp); | |
937 | free(mtn->mtn_mt.mnt_fstype); | |
938 | free(mtn->mtn_mt.mnt_mntopts); | |
a10d50f9 | 939 | free(mtn); |
70e5ad31 | 940 | } else { |
a10d50f9 | 941 | avl_add(&hdl->libzfs_mnttab_cache, mtn); |
70e5ad31 | 942 | } |
a10d50f9 SR |
943 | } |
944 | pthread_mutex_unlock(&hdl->libzfs_mnttab_cache_lock); | |
fb5f0bc8 BB |
945 | } |
946 | ||
947 | void | |
948 | libzfs_mnttab_remove(libzfs_handle_t *hdl, const char *fsname) | |
949 | { | |
950 | mnttab_node_t find; | |
951 | mnttab_node_t *ret; | |
952 | ||
a10d50f9 | 953 | pthread_mutex_lock(&hdl->libzfs_mnttab_cache_lock); |
fb5f0bc8 | 954 | find.mtn_mt.mnt_special = (char *)fsname; |
23d70cde GM |
955 | if ((ret = avl_find(&hdl->libzfs_mnttab_cache, (void *)&find, NULL)) |
956 | != NULL) { | |
fb5f0bc8 BB |
957 | avl_remove(&hdl->libzfs_mnttab_cache, ret); |
958 | free(ret->mtn_mt.mnt_special); | |
959 | free(ret->mtn_mt.mnt_mountp); | |
960 | free(ret->mtn_mt.mnt_fstype); | |
961 | free(ret->mtn_mt.mnt_mntopts); | |
962 | free(ret); | |
963 | } | |
a10d50f9 | 964 | pthread_mutex_unlock(&hdl->libzfs_mnttab_cache_lock); |
fb5f0bc8 BB |
965 | } |
966 | ||
34dc7c2f BB |
967 | int |
968 | zfs_spa_version(zfs_handle_t *zhp, int *spa_version) | |
969 | { | |
b128c09f | 970 | zpool_handle_t *zpool_handle = zhp->zpool_hdl; |
34dc7c2f | 971 | |
34dc7c2f BB |
972 | if (zpool_handle == NULL) |
973 | return (-1); | |
974 | ||
975 | *spa_version = zpool_get_prop_int(zpool_handle, | |
976 | ZPOOL_PROP_VERSION, NULL); | |
34dc7c2f BB |
977 | return (0); |
978 | } | |
979 | ||
980 | /* | |
981 | * The choice of reservation property depends on the SPA version. | |
982 | */ | |
983 | static int | |
984 | zfs_which_resv_prop(zfs_handle_t *zhp, zfs_prop_t *resv_prop) | |
985 | { | |
986 | int spa_version; | |
987 | ||
988 | if (zfs_spa_version(zhp, &spa_version) < 0) | |
989 | return (-1); | |
990 | ||
991 | if (spa_version >= SPA_VERSION_REFRESERVATION) | |
992 | *resv_prop = ZFS_PROP_REFRESERVATION; | |
993 | else | |
994 | *resv_prop = ZFS_PROP_RESERVATION; | |
995 | ||
996 | return (0); | |
997 | } | |
998 | ||
999 | /* | |
1000 | * Given an nvlist of properties to set, validates that they are correct, and | |
1001 | * parses any numeric properties (index, boolean, etc) if they are specified as | |
1002 | * strings. | |
1003 | */ | |
b128c09f BB |
1004 | nvlist_t * |
1005 | zfs_valid_proplist(libzfs_handle_t *hdl, zfs_type_t type, nvlist_t *nvl, | |
82f6f6e6 | 1006 | uint64_t zoned, zfs_handle_t *zhp, zpool_handle_t *zpool_hdl, |
b5256303 | 1007 | boolean_t key_params_ok, const char *errbuf) |
34dc7c2f BB |
1008 | { |
1009 | nvpair_t *elem; | |
1010 | uint64_t intval; | |
1011 | char *strval; | |
1012 | zfs_prop_t prop; | |
1013 | nvlist_t *ret; | |
1014 | int chosen_normal = -1; | |
1015 | int chosen_utf = -1; | |
1016 | ||
34dc7c2f BB |
1017 | if (nvlist_alloc(&ret, NV_UNIQUE_NAME, 0) != 0) { |
1018 | (void) no_memory(hdl); | |
1019 | return (NULL); | |
1020 | } | |
1021 | ||
9babb374 BB |
1022 | /* |
1023 | * Make sure this property is valid and applies to this type. | |
1024 | */ | |
1025 | ||
34dc7c2f BB |
1026 | elem = NULL; |
1027 | while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) { | |
1028 | const char *propname = nvpair_name(elem); | |
1029 | ||
9babb374 BB |
1030 | prop = zfs_name_to_prop(propname); |
1031 | if (prop == ZPROP_INVAL && zfs_prop_user(propname)) { | |
34dc7c2f | 1032 | /* |
9babb374 | 1033 | * This is a user property: make sure it's a |
34dc7c2f BB |
1034 | * string, and that it's less than ZAP_MAXNAMELEN. |
1035 | */ | |
1036 | if (nvpair_type(elem) != DATA_TYPE_STRING) { | |
1037 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1038 | "'%s' must be a string"), propname); | |
1039 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1040 | goto error; | |
1041 | } | |
1042 | ||
1043 | if (strlen(nvpair_name(elem)) >= ZAP_MAXNAMELEN) { | |
1044 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1045 | "property name '%s' is too long"), | |
1046 | propname); | |
1047 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1048 | goto error; | |
1049 | } | |
1050 | ||
1051 | (void) nvpair_value_string(elem, &strval); | |
1052 | if (nvlist_add_string(ret, propname, strval) != 0) { | |
1053 | (void) no_memory(hdl); | |
1054 | goto error; | |
1055 | } | |
1056 | continue; | |
1057 | } | |
1058 | ||
9babb374 BB |
1059 | /* |
1060 | * Currently, only user properties can be modified on | |
1061 | * snapshots. | |
1062 | */ | |
b128c09f BB |
1063 | if (type == ZFS_TYPE_SNAPSHOT) { |
1064 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1065 | "this property can not be modified for snapshots")); | |
1066 | (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); | |
1067 | goto error; | |
1068 | } | |
1069 | ||
9babb374 BB |
1070 | if (prop == ZPROP_INVAL && zfs_prop_userquota(propname)) { |
1071 | zfs_userquota_prop_t uqtype; | |
21a4f5cc | 1072 | char *newpropname = NULL; |
9babb374 BB |
1073 | char domain[128]; |
1074 | uint64_t rid; | |
1075 | uint64_t valary[3]; | |
21a4f5cc | 1076 | int rc; |
9babb374 BB |
1077 | |
1078 | if (userquota_propname_decode(propname, zoned, | |
1079 | &uqtype, domain, sizeof (domain), &rid) != 0) { | |
1080 | zfs_error_aux(hdl, | |
1081 | dgettext(TEXT_DOMAIN, | |
1082 | "'%s' has an invalid user/group name"), | |
1083 | propname); | |
1084 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1085 | goto error; | |
1086 | } | |
1087 | ||
1088 | if (uqtype != ZFS_PROP_USERQUOTA && | |
1de321e6 JX |
1089 | uqtype != ZFS_PROP_GROUPQUOTA && |
1090 | uqtype != ZFS_PROP_USEROBJQUOTA && | |
9c5167d1 NF |
1091 | uqtype != ZFS_PROP_GROUPOBJQUOTA && |
1092 | uqtype != ZFS_PROP_PROJECTQUOTA && | |
1093 | uqtype != ZFS_PROP_PROJECTOBJQUOTA) { | |
9babb374 BB |
1094 | zfs_error_aux(hdl, |
1095 | dgettext(TEXT_DOMAIN, "'%s' is readonly"), | |
1096 | propname); | |
1097 | (void) zfs_error(hdl, EZFS_PROPREADONLY, | |
1098 | errbuf); | |
1099 | goto error; | |
1100 | } | |
1101 | ||
1102 | if (nvpair_type(elem) == DATA_TYPE_STRING) { | |
1103 | (void) nvpair_value_string(elem, &strval); | |
1104 | if (strcmp(strval, "none") == 0) { | |
1105 | intval = 0; | |
1106 | } else if (zfs_nicestrtonum(hdl, | |
1107 | strval, &intval) != 0) { | |
1108 | (void) zfs_error(hdl, | |
1109 | EZFS_BADPROP, errbuf); | |
1110 | goto error; | |
1111 | } | |
1112 | } else if (nvpair_type(elem) == | |
1113 | DATA_TYPE_UINT64) { | |
1114 | (void) nvpair_value_uint64(elem, &intval); | |
1115 | if (intval == 0) { | |
1116 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1117 | "use 'none' to disable " | |
9c5167d1 | 1118 | "{user|group|project}quota")); |
9babb374 BB |
1119 | goto error; |
1120 | } | |
1121 | } else { | |
1122 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1123 | "'%s' must be a number"), propname); | |
1124 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1125 | goto error; | |
1126 | } | |
1127 | ||
428870ff BB |
1128 | /* |
1129 | * Encode the prop name as | |
1130 | * userquota@<hex-rid>-domain, to make it easy | |
1131 | * for the kernel to decode. | |
1132 | */ | |
21a4f5cc TH |
1133 | rc = asprintf(&newpropname, "%s%llx-%s", |
1134 | zfs_userquota_prop_prefixes[uqtype], | |
428870ff | 1135 | (longlong_t)rid, domain); |
21a4f5cc TH |
1136 | if (rc == -1 || newpropname == NULL) { |
1137 | (void) no_memory(hdl); | |
1138 | goto error; | |
1139 | } | |
1140 | ||
9babb374 BB |
1141 | valary[0] = uqtype; |
1142 | valary[1] = rid; | |
1143 | valary[2] = intval; | |
1144 | if (nvlist_add_uint64_array(ret, newpropname, | |
1145 | valary, 3) != 0) { | |
21a4f5cc | 1146 | free(newpropname); |
9babb374 BB |
1147 | (void) no_memory(hdl); |
1148 | goto error; | |
1149 | } | |
21a4f5cc | 1150 | free(newpropname); |
9babb374 | 1151 | continue; |
330d06f9 MA |
1152 | } else if (prop == ZPROP_INVAL && zfs_prop_written(propname)) { |
1153 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1154 | "'%s' is readonly"), | |
1155 | propname); | |
1156 | (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); | |
1157 | goto error; | |
9babb374 BB |
1158 | } |
1159 | ||
1160 | if (prop == ZPROP_INVAL) { | |
1161 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1162 | "invalid property '%s'"), propname); | |
1163 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1164 | goto error; | |
1165 | } | |
1166 | ||
962d5242 | 1167 | if (!zfs_prop_valid_for_type(prop, type, B_FALSE)) { |
34dc7c2f BB |
1168 | zfs_error_aux(hdl, |
1169 | dgettext(TEXT_DOMAIN, "'%s' does not " | |
1170 | "apply to datasets of this type"), propname); | |
1171 | (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); | |
1172 | goto error; | |
1173 | } | |
1174 | ||
1175 | if (zfs_prop_readonly(prop) && | |
b5256303 TC |
1176 | !(zfs_prop_setonce(prop) && zhp == NULL) && |
1177 | !(zfs_prop_encryption_key_param(prop) && key_params_ok)) { | |
34dc7c2f BB |
1178 | zfs_error_aux(hdl, |
1179 | dgettext(TEXT_DOMAIN, "'%s' is readonly"), | |
1180 | propname); | |
1181 | (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); | |
1182 | goto error; | |
1183 | } | |
1184 | ||
1185 | if (zprop_parse_value(hdl, elem, prop, type, ret, | |
1186 | &strval, &intval, errbuf) != 0) | |
1187 | goto error; | |
1188 | ||
1189 | /* | |
1190 | * Perform some additional checks for specific properties. | |
1191 | */ | |
1192 | switch (prop) { | |
1193 | case ZFS_PROP_VERSION: | |
1194 | { | |
1195 | int version; | |
1196 | ||
1197 | if (zhp == NULL) | |
1198 | break; | |
1199 | version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); | |
1200 | if (intval < version) { | |
1201 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1202 | "Can not downgrade; already at version %u"), | |
1203 | version); | |
1204 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1205 | goto error; | |
1206 | } | |
1207 | break; | |
1208 | } | |
1209 | ||
34dc7c2f | 1210 | case ZFS_PROP_VOLBLOCKSIZE: |
f1512ee6 MA |
1211 | case ZFS_PROP_RECORDSIZE: |
1212 | { | |
1213 | int maxbs = SPA_MAXBLOCKSIZE; | |
4cb7b9c5 BB |
1214 | char buf[64]; |
1215 | ||
82f6f6e6 JS |
1216 | if (zpool_hdl != NULL) { |
1217 | maxbs = zpool_get_prop_int(zpool_hdl, | |
f1512ee6 MA |
1218 | ZPOOL_PROP_MAXBLOCKSIZE, NULL); |
1219 | } | |
1220 | /* | |
1221 | * The value must be a power of two between | |
1222 | * SPA_MINBLOCKSIZE and maxbs. | |
1223 | */ | |
34dc7c2f | 1224 | if (intval < SPA_MINBLOCKSIZE || |
f1512ee6 | 1225 | intval > maxbs || !ISP2(intval)) { |
e7fbeb60 | 1226 | zfs_nicebytes(maxbs, buf, sizeof (buf)); |
34dc7c2f | 1227 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
f1512ee6 | 1228 | "'%s' must be power of 2 from 512B " |
4cb7b9c5 | 1229 | "to %s"), propname, buf); |
34dc7c2f BB |
1230 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); |
1231 | goto error; | |
1232 | } | |
1233 | break; | |
f1512ee6 | 1234 | } |
cc99f275 DB |
1235 | |
1236 | case ZFS_PROP_SPECIAL_SMALL_BLOCKS: | |
624222ae BB |
1237 | { |
1238 | int maxbs = SPA_OLD_MAXBLOCKSIZE; | |
1239 | char buf[64]; | |
1240 | ||
cc99f275 DB |
1241 | if (zpool_hdl != NULL) { |
1242 | char state[64] = ""; | |
1243 | ||
624222ae BB |
1244 | maxbs = zpool_get_prop_int(zpool_hdl, |
1245 | ZPOOL_PROP_MAXBLOCKSIZE, NULL); | |
1246 | ||
cc99f275 DB |
1247 | /* |
1248 | * Issue a warning but do not fail so that | |
624222ae | 1249 | * tests for settable properties succeed. |
cc99f275 DB |
1250 | */ |
1251 | if (zpool_prop_get_feature(zpool_hdl, | |
1252 | "feature@allocation_classes", state, | |
1253 | sizeof (state)) != 0 || | |
1254 | strcmp(state, ZFS_FEATURE_ACTIVE) != 0) { | |
1255 | (void) fprintf(stderr, gettext( | |
1256 | "%s: property requires a special " | |
1257 | "device in the pool\n"), propname); | |
1258 | } | |
1259 | } | |
1260 | if (intval != 0 && | |
1261 | (intval < SPA_MINBLOCKSIZE || | |
624222ae BB |
1262 | intval > maxbs || !ISP2(intval))) { |
1263 | zfs_nicebytes(maxbs, buf, sizeof (buf)); | |
cc99f275 DB |
1264 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
1265 | "invalid '%s=%d' property: must be zero or " | |
624222ae BB |
1266 | "a power of 2 from 512B to %s"), propname, |
1267 | intval, buf); | |
cc99f275 DB |
1268 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); |
1269 | goto error; | |
1270 | } | |
1271 | break; | |
624222ae | 1272 | } |
cc99f275 | 1273 | |
428870ff BB |
1274 | case ZFS_PROP_MLSLABEL: |
1275 | { | |
d2c15e84 | 1276 | #ifdef HAVE_MLSLABEL |
428870ff BB |
1277 | /* |
1278 | * Verify the mlslabel string and convert to | |
1279 | * internal hex label string. | |
1280 | */ | |
1281 | ||
1282 | m_label_t *new_sl; | |
1283 | char *hex = NULL; /* internal label string */ | |
1284 | ||
1285 | /* Default value is already OK. */ | |
1286 | if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) | |
1287 | break; | |
1288 | ||
1289 | /* Verify the label can be converted to binary form */ | |
1290 | if (((new_sl = m_label_alloc(MAC_LABEL)) == NULL) || | |
1291 | (str_to_label(strval, &new_sl, MAC_LABEL, | |
1292 | L_NO_CORRECTION, NULL) == -1)) { | |
1293 | goto badlabel; | |
34dc7c2f BB |
1294 | } |
1295 | ||
428870ff BB |
1296 | /* Now translate to hex internal label string */ |
1297 | if (label_to_str(new_sl, &hex, M_INTERNAL, | |
1298 | DEF_NAMES) != 0) { | |
1299 | if (hex) | |
1300 | free(hex); | |
1301 | goto badlabel; | |
1302 | } | |
1303 | m_label_free(new_sl); | |
1304 | ||
1305 | /* If string is already in internal form, we're done. */ | |
1306 | if (strcmp(strval, hex) == 0) { | |
1307 | free(hex); | |
1308 | break; | |
1309 | } | |
1310 | ||
1311 | /* Replace the label string with the internal form. */ | |
1312 | (void) nvlist_remove(ret, zfs_prop_to_name(prop), | |
1313 | DATA_TYPE_STRING); | |
1314 | verify(nvlist_add_string(ret, zfs_prop_to_name(prop), | |
1315 | hex) == 0); | |
1316 | free(hex); | |
1317 | ||
34dc7c2f BB |
1318 | break; |
1319 | ||
428870ff BB |
1320 | badlabel: |
1321 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1322 | "invalid mlslabel '%s'"), strval); | |
1323 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1324 | m_label_free(new_sl); /* OK if null */ | |
1325 | goto error; | |
d2c15e84 BB |
1326 | #else |
1327 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1328 | "mlslabels are unsupported")); | |
1329 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1330 | goto error; | |
1331 | #endif /* HAVE_MLSLABEL */ | |
428870ff BB |
1332 | } |
1333 | ||
34dc7c2f BB |
1334 | case ZFS_PROP_MOUNTPOINT: |
1335 | { | |
1336 | namecheck_err_t why; | |
1337 | ||
1338 | if (strcmp(strval, ZFS_MOUNTPOINT_NONE) == 0 || | |
1339 | strcmp(strval, ZFS_MOUNTPOINT_LEGACY) == 0) | |
1340 | break; | |
1341 | ||
1342 | if (mountpoint_namecheck(strval, &why)) { | |
1343 | switch (why) { | |
1344 | case NAME_ERR_LEADING_SLASH: | |
1345 | zfs_error_aux(hdl, | |
1346 | dgettext(TEXT_DOMAIN, | |
1347 | "'%s' must be an absolute path, " | |
1348 | "'none', or 'legacy'"), propname); | |
1349 | break; | |
1350 | case NAME_ERR_TOOLONG: | |
1351 | zfs_error_aux(hdl, | |
1352 | dgettext(TEXT_DOMAIN, | |
1353 | "component of '%s' is too long"), | |
1354 | propname); | |
1355 | break; | |
23d70cde | 1356 | |
e75c13c3 | 1357 | default: |
23d70cde GM |
1358 | zfs_error_aux(hdl, |
1359 | dgettext(TEXT_DOMAIN, | |
1360 | "(%d) not defined"), | |
1361 | why); | |
e75c13c3 | 1362 | break; |
34dc7c2f BB |
1363 | } |
1364 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1365 | goto error; | |
1366 | } | |
1367 | } | |
1368 | ||
1369 | /*FALLTHRU*/ | |
1370 | ||
1371 | case ZFS_PROP_SHARESMB: | |
1372 | case ZFS_PROP_SHARENFS: | |
1373 | /* | |
1374 | * For the mountpoint and sharenfs or sharesmb | |
1375 | * properties, check if it can be set in a | |
1376 | * global/non-global zone based on | |
1377 | * the zoned property value: | |
1378 | * | |
1379 | * global zone non-global zone | |
1380 | * -------------------------------------------------- | |
1381 | * zoned=on mountpoint (no) mountpoint (yes) | |
1382 | * sharenfs (no) sharenfs (no) | |
1383 | * sharesmb (no) sharesmb (no) | |
1384 | * | |
1385 | * zoned=off mountpoint (yes) N/A | |
1386 | * sharenfs (yes) | |
1387 | * sharesmb (yes) | |
1388 | */ | |
1389 | if (zoned) { | |
1390 | if (getzoneid() == GLOBAL_ZONEID) { | |
1391 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1392 | "'%s' cannot be set on " | |
1393 | "dataset in a non-global zone"), | |
1394 | propname); | |
1395 | (void) zfs_error(hdl, EZFS_ZONED, | |
1396 | errbuf); | |
1397 | goto error; | |
1398 | } else if (prop == ZFS_PROP_SHARENFS || | |
1399 | prop == ZFS_PROP_SHARESMB) { | |
1400 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1401 | "'%s' cannot be set in " | |
1402 | "a non-global zone"), propname); | |
1403 | (void) zfs_error(hdl, EZFS_ZONED, | |
1404 | errbuf); | |
1405 | goto error; | |
1406 | } | |
1407 | } else if (getzoneid() != GLOBAL_ZONEID) { | |
1408 | /* | |
1409 | * If zoned property is 'off', this must be in | |
9babb374 | 1410 | * a global zone. If not, something is wrong. |
34dc7c2f BB |
1411 | */ |
1412 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1413 | "'%s' cannot be set while dataset " | |
1414 | "'zoned' property is set"), propname); | |
1415 | (void) zfs_error(hdl, EZFS_ZONED, errbuf); | |
1416 | goto error; | |
1417 | } | |
1418 | ||
1419 | /* | |
1420 | * At this point, it is legitimate to set the | |
1421 | * property. Now we want to make sure that the | |
1422 | * property value is valid if it is sharenfs. | |
1423 | */ | |
1424 | if ((prop == ZFS_PROP_SHARENFS || | |
1425 | prop == ZFS_PROP_SHARESMB) && | |
1426 | strcmp(strval, "on") != 0 && | |
1427 | strcmp(strval, "off") != 0) { | |
1428 | zfs_share_proto_t proto; | |
1429 | ||
1430 | if (prop == ZFS_PROP_SHARESMB) | |
1431 | proto = PROTO_SMB; | |
1432 | else | |
1433 | proto = PROTO_NFS; | |
1434 | ||
34dc7c2f | 1435 | if (zfs_parse_options(strval, proto) != SA_OK) { |
34dc7c2f BB |
1436 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
1437 | "'%s' cannot be set to invalid " | |
1438 | "options"), propname); | |
1439 | (void) zfs_error(hdl, EZFS_BADPROP, | |
1440 | errbuf); | |
34dc7c2f BB |
1441 | goto error; |
1442 | } | |
34dc7c2f BB |
1443 | } |
1444 | ||
1445 | break; | |
23d70cde | 1446 | |
b5256303 TC |
1447 | case ZFS_PROP_KEYLOCATION: |
1448 | if (!zfs_prop_valid_keylocation(strval, B_FALSE)) { | |
1449 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1450 | "invalid keylocation")); | |
1451 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1452 | goto error; | |
1453 | } | |
1454 | ||
1455 | if (zhp != NULL) { | |
1456 | uint64_t crypt = | |
1457 | zfs_prop_get_int(zhp, ZFS_PROP_ENCRYPTION); | |
1458 | ||
1459 | if (crypt == ZIO_CRYPT_OFF && | |
1460 | strcmp(strval, "none") != 0) { | |
1461 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
74df0c5e TC |
1462 | "keylocation must be 'none' " |
1463 | "for unencrypted datasets")); | |
b5256303 TC |
1464 | (void) zfs_error(hdl, EZFS_BADPROP, |
1465 | errbuf); | |
1466 | goto error; | |
1467 | } else if (crypt != ZIO_CRYPT_OFF && | |
1468 | strcmp(strval, "none") == 0) { | |
1469 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
74df0c5e TC |
1470 | "keylocation must not be 'none' " |
1471 | "for encrypted datasets")); | |
b5256303 TC |
1472 | (void) zfs_error(hdl, EZFS_BADPROP, |
1473 | errbuf); | |
1474 | goto error; | |
1475 | } | |
1476 | } | |
1477 | break; | |
1478 | ||
1479 | case ZFS_PROP_PBKDF2_ITERS: | |
1480 | if (intval < MIN_PBKDF2_ITERATIONS) { | |
1481 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1482 | "minimum pbkdf2 iterations is %u"), | |
1483 | MIN_PBKDF2_ITERATIONS); | |
1484 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1485 | goto error; | |
1486 | } | |
1487 | break; | |
1488 | ||
34dc7c2f BB |
1489 | case ZFS_PROP_UTF8ONLY: |
1490 | chosen_utf = (int)intval; | |
1491 | break; | |
23d70cde | 1492 | |
34dc7c2f BB |
1493 | case ZFS_PROP_NORMALIZE: |
1494 | chosen_normal = (int)intval; | |
1495 | break; | |
23d70cde | 1496 | |
e75c13c3 BB |
1497 | default: |
1498 | break; | |
34dc7c2f BB |
1499 | } |
1500 | ||
1501 | /* | |
1502 | * For changes to existing volumes, we have some additional | |
1503 | * checks to enforce. | |
1504 | */ | |
1505 | if (type == ZFS_TYPE_VOLUME && zhp != NULL) { | |
34dc7c2f BB |
1506 | uint64_t blocksize = zfs_prop_get_int(zhp, |
1507 | ZFS_PROP_VOLBLOCKSIZE); | |
1508 | char buf[64]; | |
1509 | ||
1510 | switch (prop) { | |
34dc7c2f BB |
1511 | case ZFS_PROP_VOLSIZE: |
1512 | if (intval % blocksize != 0) { | |
e7fbeb60 | 1513 | zfs_nicebytes(blocksize, buf, |
34dc7c2f BB |
1514 | sizeof (buf)); |
1515 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1516 | "'%s' must be a multiple of " | |
1517 | "volume block size (%s)"), | |
1518 | propname, buf); | |
1519 | (void) zfs_error(hdl, EZFS_BADPROP, | |
1520 | errbuf); | |
1521 | goto error; | |
1522 | } | |
1523 | ||
1524 | if (intval == 0) { | |
1525 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1526 | "'%s' cannot be zero"), | |
1527 | propname); | |
1528 | (void) zfs_error(hdl, EZFS_BADPROP, | |
1529 | errbuf); | |
1530 | goto error; | |
1531 | } | |
1532 | break; | |
23d70cde | 1533 | |
e75c13c3 BB |
1534 | default: |
1535 | break; | |
34dc7c2f BB |
1536 | } |
1537 | } | |
b5256303 TC |
1538 | |
1539 | /* check encryption properties */ | |
1540 | if (zhp != NULL) { | |
1541 | int64_t crypt = zfs_prop_get_int(zhp, | |
1542 | ZFS_PROP_ENCRYPTION); | |
1543 | ||
1544 | switch (prop) { | |
1545 | case ZFS_PROP_COPIES: | |
1546 | if (crypt != ZIO_CRYPT_OFF && intval > 2) { | |
1547 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1548 | "encrypted datasets cannot have " | |
1549 | "3 copies")); | |
1550 | (void) zfs_error(hdl, EZFS_BADPROP, | |
1551 | errbuf); | |
1552 | goto error; | |
1553 | } | |
1554 | break; | |
1555 | default: | |
1556 | break; | |
1557 | } | |
1558 | } | |
34dc7c2f BB |
1559 | } |
1560 | ||
1561 | /* | |
1562 | * If normalization was chosen, but no UTF8 choice was made, | |
1563 | * enforce rejection of non-UTF8 names. | |
1564 | * | |
1565 | * If normalization was chosen, but rejecting non-UTF8 names | |
1566 | * was explicitly not chosen, it is an error. | |
1567 | */ | |
1568 | if (chosen_normal > 0 && chosen_utf < 0) { | |
1569 | if (nvlist_add_uint64(ret, | |
1570 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), 1) != 0) { | |
1571 | (void) no_memory(hdl); | |
1572 | goto error; | |
1573 | } | |
1574 | } else if (chosen_normal > 0 && chosen_utf == 0) { | |
1575 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1576 | "'%s' must be set 'on' if normalization chosen"), | |
1577 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); | |
1578 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1579 | goto error; | |
1580 | } | |
572e2857 BB |
1581 | return (ret); |
1582 | ||
1583 | error: | |
1584 | nvlist_free(ret); | |
1585 | return (NULL); | |
1586 | } | |
1587 | ||
65c7cc49 | 1588 | static int |
572e2857 BB |
1589 | zfs_add_synthetic_resv(zfs_handle_t *zhp, nvlist_t *nvl) |
1590 | { | |
1591 | uint64_t old_volsize; | |
1592 | uint64_t new_volsize; | |
1593 | uint64_t old_reservation; | |
1594 | uint64_t new_reservation; | |
1595 | zfs_prop_t resv_prop; | |
59d4c71c | 1596 | nvlist_t *props; |
341166c8 | 1597 | zpool_handle_t *zph = zpool_handle(zhp); |
34dc7c2f BB |
1598 | |
1599 | /* | |
1600 | * If this is an existing volume, and someone is setting the volsize, | |
1601 | * make sure that it matches the reservation, or add it if necessary. | |
1602 | */ | |
572e2857 BB |
1603 | old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); |
1604 | if (zfs_which_resv_prop(zhp, &resv_prop) < 0) | |
1605 | return (-1); | |
1606 | old_reservation = zfs_prop_get_int(zhp, resv_prop); | |
59d4c71c GW |
1607 | |
1608 | props = fnvlist_alloc(); | |
1609 | fnvlist_add_uint64(props, zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
1610 | zfs_prop_get_int(zhp, ZFS_PROP_VOLBLOCKSIZE)); | |
1611 | ||
341166c8 | 1612 | if ((zvol_volsize_to_reservation(zph, old_volsize, props) != |
59d4c71c GW |
1613 | old_reservation) || nvlist_exists(nvl, |
1614 | zfs_prop_to_name(resv_prop))) { | |
1615 | fnvlist_free(props); | |
572e2857 | 1616 | return (0); |
34dc7c2f | 1617 | } |
572e2857 | 1618 | if (nvlist_lookup_uint64(nvl, zfs_prop_to_name(ZFS_PROP_VOLSIZE), |
59d4c71c GW |
1619 | &new_volsize) != 0) { |
1620 | fnvlist_free(props); | |
572e2857 | 1621 | return (-1); |
59d4c71c | 1622 | } |
341166c8 | 1623 | new_reservation = zvol_volsize_to_reservation(zph, new_volsize, props); |
59d4c71c GW |
1624 | fnvlist_free(props); |
1625 | ||
572e2857 BB |
1626 | if (nvlist_add_uint64(nvl, zfs_prop_to_name(resv_prop), |
1627 | new_reservation) != 0) { | |
1628 | (void) no_memory(zhp->zfs_hdl); | |
1629 | return (-1); | |
1630 | } | |
1631 | return (1); | |
34dc7c2f BB |
1632 | } |
1633 | ||
d22f3a82 MG |
1634 | /* |
1635 | * Helper for 'zfs {set|clone} refreservation=auto'. Must be called after | |
78595377 | 1636 | * zfs_valid_proplist(), as it is what sets the UINT64_MAX sentinel value. |
d22f3a82 MG |
1637 | * Return codes must match zfs_add_synthetic_resv(). |
1638 | */ | |
1639 | static int | |
1640 | zfs_fix_auto_resv(zfs_handle_t *zhp, nvlist_t *nvl) | |
1641 | { | |
1642 | uint64_t volsize; | |
1643 | uint64_t resvsize; | |
1644 | zfs_prop_t prop; | |
1645 | nvlist_t *props; | |
1646 | ||
1647 | if (!ZFS_IS_VOLUME(zhp)) { | |
1648 | return (0); | |
1649 | } | |
1650 | ||
1651 | if (zfs_which_resv_prop(zhp, &prop) != 0) { | |
1652 | return (-1); | |
1653 | } | |
1654 | ||
1655 | if (prop != ZFS_PROP_REFRESERVATION) { | |
1656 | return (0); | |
1657 | } | |
1658 | ||
1659 | if (nvlist_lookup_uint64(nvl, zfs_prop_to_name(prop), &resvsize) != 0) { | |
1660 | /* No value being set, so it can't be "auto" */ | |
1661 | return (0); | |
1662 | } | |
1663 | if (resvsize != UINT64_MAX) { | |
1664 | /* Being set to a value other than "auto" */ | |
1665 | return (0); | |
1666 | } | |
1667 | ||
1668 | props = fnvlist_alloc(); | |
1669 | ||
1670 | fnvlist_add_uint64(props, zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
1671 | zfs_prop_get_int(zhp, ZFS_PROP_VOLBLOCKSIZE)); | |
1672 | ||
1673 | if (nvlist_lookup_uint64(nvl, zfs_prop_to_name(ZFS_PROP_VOLSIZE), | |
1674 | &volsize) != 0) { | |
1675 | volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); | |
1676 | } | |
1677 | ||
341166c8 MG |
1678 | resvsize = zvol_volsize_to_reservation(zpool_handle(zhp), volsize, |
1679 | props); | |
d22f3a82 MG |
1680 | fnvlist_free(props); |
1681 | ||
1682 | (void) nvlist_remove_all(nvl, zfs_prop_to_name(prop)); | |
1683 | if (nvlist_add_uint64(nvl, zfs_prop_to_name(prop), resvsize) != 0) { | |
1684 | (void) no_memory(zhp->zfs_hdl); | |
1685 | return (-1); | |
1686 | } | |
1687 | return (1); | |
1688 | } | |
1689 | ||
2cf7f52b BB |
1690 | static boolean_t |
1691 | zfs_is_namespace_prop(zfs_prop_t prop) | |
1692 | { | |
1693 | switch (prop) { | |
1694 | ||
1695 | case ZFS_PROP_ATIME: | |
6d111134 | 1696 | case ZFS_PROP_RELATIME: |
2cf7f52b BB |
1697 | case ZFS_PROP_DEVICES: |
1698 | case ZFS_PROP_EXEC: | |
1699 | case ZFS_PROP_SETUID: | |
1700 | case ZFS_PROP_READONLY: | |
1701 | case ZFS_PROP_XATTR: | |
1702 | case ZFS_PROP_NBMAND: | |
1703 | return (B_TRUE); | |
1704 | ||
1705 | default: | |
1706 | return (B_FALSE); | |
1707 | } | |
1708 | } | |
1709 | ||
34dc7c2f BB |
1710 | /* |
1711 | * Given a property name and value, set the property for the given dataset. | |
1712 | */ | |
1713 | int | |
1714 | zfs_prop_set(zfs_handle_t *zhp, const char *propname, const char *propval) | |
1715 | { | |
34dc7c2f | 1716 | int ret = -1; |
34dc7c2f BB |
1717 | char errbuf[1024]; |
1718 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
23de906c | 1719 | nvlist_t *nvl = NULL; |
34dc7c2f BB |
1720 | |
1721 | (void) snprintf(errbuf, sizeof (errbuf), | |
1722 | dgettext(TEXT_DOMAIN, "cannot set property for '%s'"), | |
1723 | zhp->zfs_name); | |
1724 | ||
1725 | if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0 || | |
1726 | nvlist_add_string(nvl, propname, propval) != 0) { | |
1727 | (void) no_memory(hdl); | |
1728 | goto error; | |
1729 | } | |
1730 | ||
23de906c | 1731 | ret = zfs_prop_set_list(zhp, nvl); |
34dc7c2f | 1732 | |
23de906c | 1733 | error: |
34dc7c2f | 1734 | nvlist_free(nvl); |
23de906c CW |
1735 | return (ret); |
1736 | } | |
34dc7c2f | 1737 | |
34dc7c2f | 1738 | |
572e2857 | 1739 | |
23de906c CW |
1740 | /* |
1741 | * Given an nvlist of property names and values, set the properties for the | |
1742 | * given dataset. | |
1743 | */ | |
1744 | int | |
1745 | zfs_prop_set_list(zfs_handle_t *zhp, nvlist_t *props) | |
1746 | { | |
1747 | zfs_cmd_t zc = {"\0"}; | |
1748 | int ret = -1; | |
1749 | prop_changelist_t **cls = NULL; | |
1750 | int cl_idx; | |
1751 | char errbuf[1024]; | |
1752 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
1753 | nvlist_t *nvl; | |
c40db193 | 1754 | int nvl_len = 0; |
23de906c CW |
1755 | int added_resv = 0; |
1756 | zfs_prop_t prop = 0; | |
1757 | nvpair_t *elem; | |
34dc7c2f | 1758 | |
23de906c CW |
1759 | (void) snprintf(errbuf, sizeof (errbuf), |
1760 | dgettext(TEXT_DOMAIN, "cannot set property for '%s'"), | |
1761 | zhp->zfs_name); | |
1762 | ||
1763 | if ((nvl = zfs_valid_proplist(hdl, zhp->zfs_type, props, | |
82f6f6e6 | 1764 | zfs_prop_get_int(zhp, ZFS_PROP_ZONED), zhp, zhp->zpool_hdl, |
b5256303 | 1765 | B_FALSE, errbuf)) == NULL) |
34dc7c2f | 1766 | goto error; |
34dc7c2f | 1767 | |
b128c09f | 1768 | /* |
23de906c CW |
1769 | * We have to check for any extra properties which need to be added |
1770 | * before computing the length of the nvlist. | |
b128c09f | 1771 | */ |
23de906c CW |
1772 | for (elem = nvlist_next_nvpair(nvl, NULL); |
1773 | elem != NULL; | |
1774 | elem = nvlist_next_nvpair(nvl, elem)) { | |
1775 | if (zfs_name_to_prop(nvpair_name(elem)) == ZFS_PROP_VOLSIZE && | |
1776 | (added_resv = zfs_add_synthetic_resv(zhp, nvl)) == -1) { | |
1777 | goto error; | |
1778 | } | |
6f1ffb06 | 1779 | } |
d22f3a82 MG |
1780 | |
1781 | if (added_resv != 1 && | |
1782 | (added_resv = zfs_fix_auto_resv(zhp, nvl)) == -1) { | |
1783 | goto error; | |
1784 | } | |
1785 | ||
23de906c CW |
1786 | /* |
1787 | * Check how many properties we're setting and allocate an array to | |
1788 | * store changelist pointers for postfix(). | |
1789 | */ | |
23de906c CW |
1790 | for (elem = nvlist_next_nvpair(nvl, NULL); |
1791 | elem != NULL; | |
1792 | elem = nvlist_next_nvpair(nvl, elem)) | |
1793 | nvl_len++; | |
1794 | if ((cls = calloc(nvl_len, sizeof (prop_changelist_t *))) == NULL) | |
b128c09f | 1795 | goto error; |
34dc7c2f | 1796 | |
23de906c CW |
1797 | cl_idx = 0; |
1798 | for (elem = nvlist_next_nvpair(nvl, NULL); | |
1799 | elem != NULL; | |
1800 | elem = nvlist_next_nvpair(nvl, elem)) { | |
1801 | ||
1802 | prop = zfs_name_to_prop(nvpair_name(elem)); | |
1803 | ||
1804 | assert(cl_idx < nvl_len); | |
1805 | /* | |
1806 | * We don't want to unmount & remount the dataset when changing | |
1807 | * its canmount property to 'on' or 'noauto'. We only use | |
1808 | * the changelist logic to unmount when setting canmount=off. | |
1809 | */ | |
b87baa7e GM |
1810 | if (prop != ZFS_PROP_CANMOUNT || |
1811 | (fnvpair_value_uint64(elem) == ZFS_CANMOUNT_OFF && | |
1812 | zfs_is_mounted(zhp, NULL))) { | |
23de906c CW |
1813 | cls[cl_idx] = changelist_gather(zhp, prop, 0, 0); |
1814 | if (cls[cl_idx] == NULL) | |
1815 | goto error; | |
1816 | } | |
1817 | ||
1818 | if (prop == ZFS_PROP_MOUNTPOINT && | |
1819 | changelist_haszonedchild(cls[cl_idx])) { | |
1820 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1821 | "child dataset with inherited mountpoint is used " | |
1822 | "in a non-global zone")); | |
1823 | ret = zfs_error(hdl, EZFS_ZONED, errbuf); | |
1824 | goto error; | |
1825 | } | |
1826 | ||
1827 | if (cls[cl_idx] != NULL && | |
1828 | (ret = changelist_prefix(cls[cl_idx])) != 0) | |
1829 | goto error; | |
1830 | ||
1831 | cl_idx++; | |
1832 | } | |
1833 | assert(cl_idx == nvl_len); | |
1834 | ||
34dc7c2f | 1835 | /* |
23de906c | 1836 | * Execute the corresponding ioctl() to set this list of properties. |
34dc7c2f BB |
1837 | */ |
1838 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
1839 | ||
23de906c CW |
1840 | if ((ret = zcmd_write_src_nvlist(hdl, &zc, nvl)) != 0 || |
1841 | (ret = zcmd_alloc_dst_nvlist(hdl, &zc, 0)) != 0) | |
34dc7c2f BB |
1842 | goto error; |
1843 | ||
1844 | ret = zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); | |
9babb374 | 1845 | |
34dc7c2f | 1846 | if (ret != 0) { |
84ddd4b0 AS |
1847 | if (zc.zc_nvlist_dst_filled == B_FALSE) { |
1848 | (void) zfs_standard_error(hdl, errno, errbuf); | |
1849 | goto error; | |
1850 | } | |
1851 | ||
23de906c CW |
1852 | /* Get the list of unset properties back and report them. */ |
1853 | nvlist_t *errorprops = NULL; | |
1854 | if (zcmd_read_dst_nvlist(hdl, &zc, &errorprops) != 0) | |
1855 | goto error; | |
84ddd4b0 | 1856 | for (nvpair_t *elem = nvlist_next_nvpair(errorprops, NULL); |
23de906c | 1857 | elem != NULL; |
84ddd4b0 | 1858 | elem = nvlist_next_nvpair(errorprops, elem)) { |
23de906c CW |
1859 | prop = zfs_name_to_prop(nvpair_name(elem)); |
1860 | zfs_setprop_error(hdl, prop, errno, errbuf); | |
1861 | } | |
1862 | nvlist_free(errorprops); | |
1863 | ||
572e2857 BB |
1864 | if (added_resv && errno == ENOSPC) { |
1865 | /* clean up the volsize property we tried to set */ | |
1866 | uint64_t old_volsize = zfs_prop_get_int(zhp, | |
1867 | ZFS_PROP_VOLSIZE); | |
1868 | nvlist_free(nvl); | |
23de906c | 1869 | nvl = NULL; |
572e2857 | 1870 | zcmd_free_nvlists(&zc); |
23de906c | 1871 | |
572e2857 BB |
1872 | if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) |
1873 | goto error; | |
1874 | if (nvlist_add_uint64(nvl, | |
1875 | zfs_prop_to_name(ZFS_PROP_VOLSIZE), | |
1876 | old_volsize) != 0) | |
1877 | goto error; | |
1878 | if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0) | |
1879 | goto error; | |
1880 | (void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); | |
1881 | } | |
34dc7c2f | 1882 | } else { |
23de906c CW |
1883 | for (cl_idx = 0; cl_idx < nvl_len; cl_idx++) { |
1884 | if (cls[cl_idx] != NULL) { | |
1885 | int clp_err = changelist_postfix(cls[cl_idx]); | |
1886 | if (clp_err != 0) | |
1887 | ret = clp_err; | |
1888 | } | |
1889 | } | |
34dc7c2f | 1890 | |
2cf7f52b BB |
1891 | if (ret == 0) { |
1892 | /* | |
1893 | * Refresh the statistics so the new property | |
1894 | * value is reflected. | |
1895 | */ | |
34dc7c2f | 1896 | (void) get_stats(zhp); |
2cf7f52b BB |
1897 | |
1898 | /* | |
1899 | * Remount the filesystem to propagate the change | |
1900 | * if one of the options handled by the generic | |
1901 | * Linux namespace layer has been modified. | |
1902 | */ | |
1903 | if (zfs_is_namespace_prop(prop) && | |
1904 | zfs_is_mounted(zhp, NULL)) | |
1905 | ret = zfs_mount(zhp, MNTOPT_REMOUNT, 0); | |
1906 | } | |
34dc7c2f BB |
1907 | } |
1908 | ||
1909 | error: | |
1910 | nvlist_free(nvl); | |
1911 | zcmd_free_nvlists(&zc); | |
23de906c CW |
1912 | if (cls != NULL) { |
1913 | for (cl_idx = 0; cl_idx < nvl_len; cl_idx++) { | |
1914 | if (cls[cl_idx] != NULL) | |
1915 | changelist_free(cls[cl_idx]); | |
1916 | } | |
1917 | free(cls); | |
1918 | } | |
34dc7c2f BB |
1919 | return (ret); |
1920 | } | |
1921 | ||
1922 | /* | |
428870ff BB |
1923 | * Given a property, inherit the value from the parent dataset, or if received |
1924 | * is TRUE, revert to the received value, if any. | |
34dc7c2f BB |
1925 | */ |
1926 | int | |
428870ff | 1927 | zfs_prop_inherit(zfs_handle_t *zhp, const char *propname, boolean_t received) |
34dc7c2f | 1928 | { |
13fe0198 | 1929 | zfs_cmd_t zc = {"\0"}; |
34dc7c2f BB |
1930 | int ret; |
1931 | prop_changelist_t *cl; | |
1932 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
1933 | char errbuf[1024]; | |
1934 | zfs_prop_t prop; | |
1935 | ||
1936 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
1937 | "cannot inherit %s for '%s'"), propname, zhp->zfs_name); | |
1938 | ||
428870ff | 1939 | zc.zc_cookie = received; |
34dc7c2f BB |
1940 | if ((prop = zfs_name_to_prop(propname)) == ZPROP_INVAL) { |
1941 | /* | |
1942 | * For user properties, the amount of work we have to do is very | |
1943 | * small, so just do it here. | |
1944 | */ | |
1945 | if (!zfs_prop_user(propname)) { | |
1946 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1947 | "invalid property")); | |
1948 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
1949 | } | |
1950 | ||
1951 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
1952 | (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); | |
1953 | ||
1954 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc) != 0) | |
1955 | return (zfs_standard_error(hdl, errno, errbuf)); | |
1956 | ||
1957 | return (0); | |
1958 | } | |
1959 | ||
1960 | /* | |
1961 | * Verify that this property is inheritable. | |
1962 | */ | |
1963 | if (zfs_prop_readonly(prop)) | |
1964 | return (zfs_error(hdl, EZFS_PROPREADONLY, errbuf)); | |
1965 | ||
428870ff | 1966 | if (!zfs_prop_inheritable(prop) && !received) |
34dc7c2f BB |
1967 | return (zfs_error(hdl, EZFS_PROPNONINHERIT, errbuf)); |
1968 | ||
1969 | /* | |
1970 | * Check to see if the value applies to this type | |
1971 | */ | |
962d5242 | 1972 | if (!zfs_prop_valid_for_type(prop, zhp->zfs_type, B_FALSE)) |
34dc7c2f BB |
1973 | return (zfs_error(hdl, EZFS_PROPTYPE, errbuf)); |
1974 | ||
1975 | /* | |
572e2857 | 1976 | * Normalize the name, to get rid of shorthand abbreviations. |
34dc7c2f BB |
1977 | */ |
1978 | propname = zfs_prop_to_name(prop); | |
1979 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
1980 | (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); | |
1981 | ||
1982 | if (prop == ZFS_PROP_MOUNTPOINT && getzoneid() == GLOBAL_ZONEID && | |
1983 | zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { | |
1984 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1985 | "dataset is used in a non-global zone")); | |
1986 | return (zfs_error(hdl, EZFS_ZONED, errbuf)); | |
1987 | } | |
1988 | ||
1989 | /* | |
1990 | * Determine datasets which will be affected by this change, if any. | |
1991 | */ | |
b128c09f | 1992 | if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL) |
34dc7c2f BB |
1993 | return (-1); |
1994 | ||
1995 | if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) { | |
1996 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1997 | "child dataset with inherited mountpoint is used " | |
1998 | "in a non-global zone")); | |
1999 | ret = zfs_error(hdl, EZFS_ZONED, errbuf); | |
2000 | goto error; | |
2001 | } | |
2002 | ||
2003 | if ((ret = changelist_prefix(cl)) != 0) | |
2004 | goto error; | |
2005 | ||
2006 | if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc)) != 0) { | |
2007 | return (zfs_standard_error(hdl, errno, errbuf)); | |
2008 | } else { | |
2009 | ||
2010 | if ((ret = changelist_postfix(cl)) != 0) | |
2011 | goto error; | |
2012 | ||
2013 | /* | |
2014 | * Refresh the statistics so the new property is reflected. | |
2015 | */ | |
2016 | (void) get_stats(zhp); | |
4d8c78c8 GB |
2017 | |
2018 | /* | |
2019 | * Remount the filesystem to propagate the change | |
2020 | * if one of the options handled by the generic | |
2021 | * Linux namespace layer has been modified. | |
2022 | */ | |
2023 | if (zfs_is_namespace_prop(prop) && | |
2024 | zfs_is_mounted(zhp, NULL)) | |
2025 | ret = zfs_mount(zhp, MNTOPT_REMOUNT, 0); | |
34dc7c2f BB |
2026 | } |
2027 | ||
2028 | error: | |
2029 | changelist_free(cl); | |
2030 | return (ret); | |
2031 | } | |
2032 | ||
2033 | /* | |
2034 | * True DSL properties are stored in an nvlist. The following two functions | |
2035 | * extract them appropriately. | |
2036 | */ | |
2cf7f52b | 2037 | uint64_t |
34dc7c2f BB |
2038 | getprop_uint64(zfs_handle_t *zhp, zfs_prop_t prop, char **source) |
2039 | { | |
2040 | nvlist_t *nv; | |
2041 | uint64_t value; | |
2042 | ||
2043 | *source = NULL; | |
2044 | if (nvlist_lookup_nvlist(zhp->zfs_props, | |
2045 | zfs_prop_to_name(prop), &nv) == 0) { | |
2046 | verify(nvlist_lookup_uint64(nv, ZPROP_VALUE, &value) == 0); | |
2047 | (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); | |
2048 | } else { | |
9babb374 BB |
2049 | verify(!zhp->zfs_props_table || |
2050 | zhp->zfs_props_table[prop] == B_TRUE); | |
34dc7c2f BB |
2051 | value = zfs_prop_default_numeric(prop); |
2052 | *source = ""; | |
2053 | } | |
2054 | ||
2055 | return (value); | |
2056 | } | |
2057 | ||
47dfff3b | 2058 | static const char * |
34dc7c2f BB |
2059 | getprop_string(zfs_handle_t *zhp, zfs_prop_t prop, char **source) |
2060 | { | |
2061 | nvlist_t *nv; | |
47dfff3b | 2062 | const char *value; |
34dc7c2f BB |
2063 | |
2064 | *source = NULL; | |
2065 | if (nvlist_lookup_nvlist(zhp->zfs_props, | |
2066 | zfs_prop_to_name(prop), &nv) == 0) { | |
47dfff3b | 2067 | value = fnvlist_lookup_string(nv, ZPROP_VALUE); |
34dc7c2f BB |
2068 | (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); |
2069 | } else { | |
9babb374 BB |
2070 | verify(!zhp->zfs_props_table || |
2071 | zhp->zfs_props_table[prop] == B_TRUE); | |
47dfff3b | 2072 | value = zfs_prop_default_string(prop); |
34dc7c2f BB |
2073 | *source = ""; |
2074 | } | |
2075 | ||
2076 | return (value); | |
2077 | } | |
2078 | ||
428870ff BB |
2079 | static boolean_t |
2080 | zfs_is_recvd_props_mode(zfs_handle_t *zhp) | |
2081 | { | |
2082 | return (zhp->zfs_props == zhp->zfs_recvd_props); | |
2083 | } | |
2084 | ||
2085 | static void | |
2086 | zfs_set_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) | |
2087 | { | |
2088 | *cookie = (uint64_t)(uintptr_t)zhp->zfs_props; | |
2089 | zhp->zfs_props = zhp->zfs_recvd_props; | |
2090 | } | |
2091 | ||
2092 | static void | |
2093 | zfs_unset_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) | |
2094 | { | |
2095 | zhp->zfs_props = (nvlist_t *)(uintptr_t)*cookie; | |
2096 | *cookie = 0; | |
2097 | } | |
2098 | ||
34dc7c2f BB |
2099 | /* |
2100 | * Internal function for getting a numeric property. Both zfs_prop_get() and | |
2101 | * zfs_prop_get_int() are built using this interface. | |
2102 | * | |
2103 | * Certain properties can be overridden using 'mount -o'. In this case, scan | |
79251738 | 2104 | * the contents of the /proc/self/mounts entry, searching for the |
2105 | * appropriate options. If they differ from the on-disk values, report the | |
2106 | * current values and mark the source "temporary". | |
34dc7c2f BB |
2107 | */ |
2108 | static int | |
2109 | get_numeric_property(zfs_handle_t *zhp, zfs_prop_t prop, zprop_source_t *src, | |
2110 | char **source, uint64_t *val) | |
2111 | { | |
13fe0198 | 2112 | zfs_cmd_t zc = {"\0"}; |
34dc7c2f BB |
2113 | nvlist_t *zplprops = NULL; |
2114 | struct mnttab mnt; | |
2115 | char *mntopt_on = NULL; | |
2116 | char *mntopt_off = NULL; | |
428870ff | 2117 | boolean_t received = zfs_is_recvd_props_mode(zhp); |
34dc7c2f BB |
2118 | |
2119 | *source = NULL; | |
2120 | ||
962d5242 TC |
2121 | /* |
2122 | * If the property is being fetched for a snapshot, check whether | |
2123 | * the property is valid for the snapshot's head dataset type. | |
2124 | */ | |
2125 | if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT && | |
02730c33 BB |
2126 | !zfs_prop_valid_for_type(prop, zhp->zfs_head_type, B_TRUE)) { |
2127 | *val = zfs_prop_default_numeric(prop); | |
2128 | return (-1); | |
09c0b8fe | 2129 | } |
962d5242 | 2130 | |
34dc7c2f BB |
2131 | switch (prop) { |
2132 | case ZFS_PROP_ATIME: | |
2133 | mntopt_on = MNTOPT_ATIME; | |
2134 | mntopt_off = MNTOPT_NOATIME; | |
2135 | break; | |
2136 | ||
6d111134 TC |
2137 | case ZFS_PROP_RELATIME: |
2138 | mntopt_on = MNTOPT_RELATIME; | |
2139 | mntopt_off = MNTOPT_NORELATIME; | |
2140 | break; | |
2141 | ||
34dc7c2f BB |
2142 | case ZFS_PROP_DEVICES: |
2143 | mntopt_on = MNTOPT_DEVICES; | |
2144 | mntopt_off = MNTOPT_NODEVICES; | |
2145 | break; | |
2146 | ||
2147 | case ZFS_PROP_EXEC: | |
2148 | mntopt_on = MNTOPT_EXEC; | |
2149 | mntopt_off = MNTOPT_NOEXEC; | |
2150 | break; | |
2151 | ||
2152 | case ZFS_PROP_READONLY: | |
2153 | mntopt_on = MNTOPT_RO; | |
2154 | mntopt_off = MNTOPT_RW; | |
2155 | break; | |
2156 | ||
2157 | case ZFS_PROP_SETUID: | |
2158 | mntopt_on = MNTOPT_SETUID; | |
2159 | mntopt_off = MNTOPT_NOSETUID; | |
2160 | break; | |
2161 | ||
2162 | case ZFS_PROP_XATTR: | |
2163 | mntopt_on = MNTOPT_XATTR; | |
2164 | mntopt_off = MNTOPT_NOXATTR; | |
2165 | break; | |
2166 | ||
2167 | case ZFS_PROP_NBMAND: | |
2168 | mntopt_on = MNTOPT_NBMAND; | |
2169 | mntopt_off = MNTOPT_NONBMAND; | |
2170 | break; | |
23d70cde | 2171 | |
e75c13c3 BB |
2172 | default: |
2173 | break; | |
34dc7c2f BB |
2174 | } |
2175 | ||
2176 | /* | |
2177 | * Because looking up the mount options is potentially expensive | |
79251738 | 2178 | * (iterating over all of /proc/self/mounts), we defer its |
2179 | * calculation until we're looking up a property which requires | |
2180 | * its presence. | |
34dc7c2f BB |
2181 | */ |
2182 | if (!zhp->zfs_mntcheck && | |
2183 | (mntopt_on != NULL || prop == ZFS_PROP_MOUNTED)) { | |
fb5f0bc8 BB |
2184 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
2185 | struct mnttab entry; | |
34dc7c2f | 2186 | |
fb5f0bc8 BB |
2187 | if (libzfs_mnttab_find(hdl, zhp->zfs_name, &entry) == 0) { |
2188 | zhp->zfs_mntopts = zfs_strdup(hdl, | |
34dc7c2f BB |
2189 | entry.mnt_mntopts); |
2190 | if (zhp->zfs_mntopts == NULL) | |
2191 | return (-1); | |
2192 | } | |
2193 | ||
2194 | zhp->zfs_mntcheck = B_TRUE; | |
2195 | } | |
2196 | ||
2197 | if (zhp->zfs_mntopts == NULL) | |
2198 | mnt.mnt_mntopts = ""; | |
2199 | else | |
2200 | mnt.mnt_mntopts = zhp->zfs_mntopts; | |
2201 | ||
2202 | switch (prop) { | |
0282c413 BB |
2203 | case ZFS_PROP_ATIME: |
2204 | case ZFS_PROP_RELATIME: | |
34dc7c2f BB |
2205 | case ZFS_PROP_DEVICES: |
2206 | case ZFS_PROP_EXEC: | |
2207 | case ZFS_PROP_READONLY: | |
2208 | case ZFS_PROP_SETUID: | |
5206b822 | 2209 | #ifndef __FreeBSD__ |
34dc7c2f | 2210 | case ZFS_PROP_XATTR: |
5206b822 | 2211 | #endif |
34dc7c2f BB |
2212 | case ZFS_PROP_NBMAND: |
2213 | *val = getprop_uint64(zhp, prop, source); | |
2214 | ||
428870ff BB |
2215 | if (received) |
2216 | break; | |
2217 | ||
34dc7c2f BB |
2218 | if (hasmntopt(&mnt, mntopt_on) && !*val) { |
2219 | *val = B_TRUE; | |
2220 | if (src) | |
2221 | *src = ZPROP_SRC_TEMPORARY; | |
2222 | } else if (hasmntopt(&mnt, mntopt_off) && *val) { | |
2223 | *val = B_FALSE; | |
2224 | if (src) | |
2225 | *src = ZPROP_SRC_TEMPORARY; | |
2226 | } | |
2227 | break; | |
2228 | ||
2229 | case ZFS_PROP_CANMOUNT: | |
428870ff | 2230 | case ZFS_PROP_VOLSIZE: |
34dc7c2f BB |
2231 | case ZFS_PROP_QUOTA: |
2232 | case ZFS_PROP_REFQUOTA: | |
2233 | case ZFS_PROP_RESERVATION: | |
2234 | case ZFS_PROP_REFRESERVATION: | |
788eb90c JJ |
2235 | case ZFS_PROP_FILESYSTEM_LIMIT: |
2236 | case ZFS_PROP_SNAPSHOT_LIMIT: | |
2237 | case ZFS_PROP_FILESYSTEM_COUNT: | |
2238 | case ZFS_PROP_SNAPSHOT_COUNT: | |
34dc7c2f | 2239 | *val = getprop_uint64(zhp, prop, source); |
428870ff BB |
2240 | |
2241 | if (*source == NULL) { | |
2242 | /* not default, must be local */ | |
34dc7c2f | 2243 | *source = zhp->zfs_name; |
428870ff | 2244 | } |
34dc7c2f BB |
2245 | break; |
2246 | ||
2247 | case ZFS_PROP_MOUNTED: | |
2248 | *val = (zhp->zfs_mntopts != NULL); | |
2249 | break; | |
2250 | ||
2251 | case ZFS_PROP_NUMCLONES: | |
2252 | *val = zhp->zfs_dmustats.dds_num_clones; | |
2253 | break; | |
2254 | ||
2255 | case ZFS_PROP_VERSION: | |
2256 | case ZFS_PROP_NORMALIZE: | |
2257 | case ZFS_PROP_UTF8ONLY: | |
2258 | case ZFS_PROP_CASE: | |
962d5242 | 2259 | if (zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) |
34dc7c2f BB |
2260 | return (-1); |
2261 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
2262 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_OBJSET_ZPLPROPS, &zc)) { | |
2263 | zcmd_free_nvlists(&zc); | |
59199d90 TC |
2264 | if (prop == ZFS_PROP_VERSION && |
2265 | zhp->zfs_type == ZFS_TYPE_VOLUME) | |
2266 | *val = zfs_prop_default_numeric(prop); | |
45d1cae3 | 2267 | return (-1); |
34dc7c2f BB |
2268 | } |
2269 | if (zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &zplprops) != 0 || | |
2270 | nvlist_lookup_uint64(zplprops, zfs_prop_to_name(prop), | |
2271 | val) != 0) { | |
2272 | zcmd_free_nvlists(&zc); | |
45d1cae3 | 2273 | return (-1); |
34dc7c2f | 2274 | } |
8a5fc748 | 2275 | nvlist_free(zplprops); |
34dc7c2f BB |
2276 | zcmd_free_nvlists(&zc); |
2277 | break; | |
2278 | ||
96c2e961 KW |
2279 | case ZFS_PROP_INCONSISTENT: |
2280 | *val = zhp->zfs_dmustats.dds_inconsistent; | |
2281 | break; | |
2282 | ||
30af21b0 PD |
2283 | case ZFS_PROP_REDACTED: |
2284 | *val = zhp->zfs_dmustats.dds_redacted; | |
2285 | break; | |
2286 | ||
34dc7c2f BB |
2287 | default: |
2288 | switch (zfs_prop_get_type(prop)) { | |
2289 | case PROP_TYPE_NUMBER: | |
2290 | case PROP_TYPE_INDEX: | |
2291 | *val = getprop_uint64(zhp, prop, source); | |
b128c09f | 2292 | /* |
9babb374 | 2293 | * If we tried to use a default value for a |
b128c09f | 2294 | * readonly property, it means that it was not |
3d43125f GM |
2295 | * present. Note this only applies to "truly" |
2296 | * readonly properties, not set-once properties | |
2297 | * like volblocksize. | |
b128c09f BB |
2298 | */ |
2299 | if (zfs_prop_readonly(prop) && | |
3d43125f | 2300 | !zfs_prop_setonce(prop) && |
428870ff BB |
2301 | *source != NULL && (*source)[0] == '\0') { |
2302 | *source = NULL; | |
7e8dbd93 | 2303 | return (-1); |
b128c09f | 2304 | } |
34dc7c2f BB |
2305 | break; |
2306 | ||
2307 | case PROP_TYPE_STRING: | |
2308 | default: | |
2309 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
2310 | "cannot get non-numeric property")); | |
2311 | return (zfs_error(zhp->zfs_hdl, EZFS_BADPROP, | |
2312 | dgettext(TEXT_DOMAIN, "internal error"))); | |
2313 | } | |
2314 | } | |
2315 | ||
2316 | return (0); | |
2317 | } | |
2318 | ||
2319 | /* | |
2320 | * Calculate the source type, given the raw source string. | |
2321 | */ | |
2322 | static void | |
2323 | get_source(zfs_handle_t *zhp, zprop_source_t *srctype, char *source, | |
2324 | char *statbuf, size_t statlen) | |
2325 | { | |
94183a9d BB |
2326 | if (statbuf == NULL || |
2327 | srctype == NULL || *srctype == ZPROP_SRC_TEMPORARY) { | |
34dc7c2f | 2328 | return; |
94183a9d | 2329 | } |
34dc7c2f BB |
2330 | |
2331 | if (source == NULL) { | |
2332 | *srctype = ZPROP_SRC_NONE; | |
2333 | } else if (source[0] == '\0') { | |
2334 | *srctype = ZPROP_SRC_DEFAULT; | |
428870ff BB |
2335 | } else if (strstr(source, ZPROP_SOURCE_VAL_RECVD) != NULL) { |
2336 | *srctype = ZPROP_SRC_RECEIVED; | |
34dc7c2f BB |
2337 | } else { |
2338 | if (strcmp(source, zhp->zfs_name) == 0) { | |
2339 | *srctype = ZPROP_SRC_LOCAL; | |
2340 | } else { | |
2341 | (void) strlcpy(statbuf, source, statlen); | |
2342 | *srctype = ZPROP_SRC_INHERITED; | |
2343 | } | |
2344 | } | |
2345 | ||
2346 | } | |
2347 | ||
428870ff BB |
2348 | int |
2349 | zfs_prop_get_recvd(zfs_handle_t *zhp, const char *propname, char *propbuf, | |
2350 | size_t proplen, boolean_t literal) | |
2351 | { | |
2352 | zfs_prop_t prop; | |
2353 | int err = 0; | |
2354 | ||
2355 | if (zhp->zfs_recvd_props == NULL) | |
2356 | if (get_recvd_props_ioctl(zhp) != 0) | |
2357 | return (-1); | |
2358 | ||
2359 | prop = zfs_name_to_prop(propname); | |
2360 | ||
2361 | if (prop != ZPROP_INVAL) { | |
2362 | uint64_t cookie; | |
2363 | if (!nvlist_exists(zhp->zfs_recvd_props, propname)) | |
2364 | return (-1); | |
2365 | zfs_set_recvd_props_mode(zhp, &cookie); | |
2366 | err = zfs_prop_get(zhp, prop, propbuf, proplen, | |
2367 | NULL, NULL, 0, literal); | |
2368 | zfs_unset_recvd_props_mode(zhp, &cookie); | |
428870ff BB |
2369 | } else { |
2370 | nvlist_t *propval; | |
2371 | char *recvdval; | |
2372 | if (nvlist_lookup_nvlist(zhp->zfs_recvd_props, | |
2373 | propname, &propval) != 0) | |
2374 | return (-1); | |
2375 | verify(nvlist_lookup_string(propval, ZPROP_VALUE, | |
2376 | &recvdval) == 0); | |
2377 | (void) strlcpy(propbuf, recvdval, proplen); | |
2378 | } | |
2379 | ||
2380 | return (err == 0 ? 0 : -1); | |
2381 | } | |
2382 | ||
330d06f9 MA |
2383 | static int |
2384 | get_clones_string(zfs_handle_t *zhp, char *propbuf, size_t proplen) | |
2385 | { | |
2386 | nvlist_t *value; | |
2387 | nvpair_t *pair; | |
2388 | ||
2389 | value = zfs_get_clones_nvl(zhp); | |
2390 | if (value == NULL) | |
2391 | return (-1); | |
2392 | ||
2393 | propbuf[0] = '\0'; | |
2394 | for (pair = nvlist_next_nvpair(value, NULL); pair != NULL; | |
2395 | pair = nvlist_next_nvpair(value, pair)) { | |
2396 | if (propbuf[0] != '\0') | |
2397 | (void) strlcat(propbuf, ",", proplen); | |
2398 | (void) strlcat(propbuf, nvpair_name(pair), proplen); | |
2399 | } | |
2400 | ||
2401 | return (0); | |
2402 | } | |
2403 | ||
2404 | struct get_clones_arg { | |
2405 | uint64_t numclones; | |
2406 | nvlist_t *value; | |
2407 | const char *origin; | |
eca7b760 | 2408 | char buf[ZFS_MAX_DATASET_NAME_LEN]; |
330d06f9 MA |
2409 | }; |
2410 | ||
65c7cc49 | 2411 | static int |
330d06f9 MA |
2412 | get_clones_cb(zfs_handle_t *zhp, void *arg) |
2413 | { | |
2414 | struct get_clones_arg *gca = arg; | |
2415 | ||
2416 | if (gca->numclones == 0) { | |
2417 | zfs_close(zhp); | |
2418 | return (0); | |
2419 | } | |
2420 | ||
2421 | if (zfs_prop_get(zhp, ZFS_PROP_ORIGIN, gca->buf, sizeof (gca->buf), | |
2422 | NULL, NULL, 0, B_TRUE) != 0) | |
2423 | goto out; | |
2424 | if (strcmp(gca->buf, gca->origin) == 0) { | |
13fe0198 | 2425 | fnvlist_add_boolean(gca->value, zfs_get_name(zhp)); |
330d06f9 MA |
2426 | gca->numclones--; |
2427 | } | |
2428 | ||
2429 | out: | |
2430 | (void) zfs_iter_children(zhp, get_clones_cb, gca); | |
2431 | zfs_close(zhp); | |
2432 | return (0); | |
2433 | } | |
2434 | ||
2435 | nvlist_t * | |
2436 | zfs_get_clones_nvl(zfs_handle_t *zhp) | |
2437 | { | |
2438 | nvlist_t *nv, *value; | |
2439 | ||
2440 | if (nvlist_lookup_nvlist(zhp->zfs_props, | |
2441 | zfs_prop_to_name(ZFS_PROP_CLONES), &nv) != 0) { | |
2442 | struct get_clones_arg gca; | |
2443 | ||
2444 | /* | |
2445 | * if this is a snapshot, then the kernel wasn't able | |
2446 | * to get the clones. Do it by slowly iterating. | |
2447 | */ | |
2448 | if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT) | |
2449 | return (NULL); | |
2450 | if (nvlist_alloc(&nv, NV_UNIQUE_NAME, 0) != 0) | |
2451 | return (NULL); | |
2452 | if (nvlist_alloc(&value, NV_UNIQUE_NAME, 0) != 0) { | |
2453 | nvlist_free(nv); | |
2454 | return (NULL); | |
2455 | } | |
2456 | ||
2457 | gca.numclones = zfs_prop_get_int(zhp, ZFS_PROP_NUMCLONES); | |
2458 | gca.value = value; | |
2459 | gca.origin = zhp->zfs_name; | |
2460 | ||
2461 | if (gca.numclones != 0) { | |
2462 | zfs_handle_t *root; | |
eca7b760 | 2463 | char pool[ZFS_MAX_DATASET_NAME_LEN]; |
330d06f9 MA |
2464 | char *cp = pool; |
2465 | ||
2466 | /* get the pool name */ | |
2467 | (void) strlcpy(pool, zhp->zfs_name, sizeof (pool)); | |
2468 | (void) strsep(&cp, "/@"); | |
2469 | root = zfs_open(zhp->zfs_hdl, pool, | |
2470 | ZFS_TYPE_FILESYSTEM); | |
0a8f18f9 | 2471 | if (root == NULL) { |
2472 | nvlist_free(nv); | |
2473 | nvlist_free(value); | |
2474 | return (NULL); | |
2475 | } | |
330d06f9 MA |
2476 | |
2477 | (void) get_clones_cb(root, &gca); | |
2478 | } | |
2479 | ||
2480 | if (gca.numclones != 0 || | |
2481 | nvlist_add_nvlist(nv, ZPROP_VALUE, value) != 0 || | |
2482 | nvlist_add_nvlist(zhp->zfs_props, | |
2483 | zfs_prop_to_name(ZFS_PROP_CLONES), nv) != 0) { | |
2484 | nvlist_free(nv); | |
2485 | nvlist_free(value); | |
2486 | return (NULL); | |
2487 | } | |
2488 | nvlist_free(nv); | |
2489 | nvlist_free(value); | |
2490 | verify(0 == nvlist_lookup_nvlist(zhp->zfs_props, | |
2491 | zfs_prop_to_name(ZFS_PROP_CLONES), &nv)); | |
2492 | } | |
2493 | ||
2494 | verify(nvlist_lookup_nvlist(nv, ZPROP_VALUE, &value) == 0); | |
2495 | ||
2496 | return (value); | |
2497 | } | |
2498 | ||
30af21b0 PD |
2499 | static int |
2500 | get_rsnaps_string(zfs_handle_t *zhp, char *propbuf, size_t proplen) | |
2501 | { | |
2502 | nvlist_t *value; | |
2503 | uint64_t *snaps; | |
2504 | uint_t nsnaps; | |
2505 | ||
2506 | if (nvlist_lookup_nvlist(zhp->zfs_props, | |
2507 | zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS), &value) != 0) | |
2508 | return (-1); | |
2509 | if (nvlist_lookup_uint64_array(value, ZPROP_VALUE, &snaps, | |
2510 | &nsnaps) != 0) | |
2511 | return (-1); | |
2512 | if (nsnaps == 0) { | |
2513 | /* There's no redaction snapshots; pass a special value back */ | |
2514 | (void) snprintf(propbuf, proplen, "none"); | |
2515 | return (0); | |
2516 | } | |
2517 | propbuf[0] = '\0'; | |
2518 | for (int i = 0; i < nsnaps; i++) { | |
2519 | char buf[128]; | |
2520 | if (propbuf[0] != '\0') | |
2521 | (void) strlcat(propbuf, ",", proplen); | |
2522 | (void) snprintf(buf, sizeof (buf), "%llu", | |
2523 | (u_longlong_t)snaps[i]); | |
2524 | (void) strlcat(propbuf, buf, proplen); | |
2525 | } | |
2526 | ||
2527 | return (0); | |
2528 | } | |
2529 | ||
d99a0153 CW |
2530 | /* |
2531 | * Accepts a property and value and checks that the value | |
2532 | * matches the one found by the channel program. If they are | |
2533 | * not equal, print both of them. | |
2534 | */ | |
2535 | static void | |
2536 | zcp_check(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t intval, | |
2537 | const char *strval) | |
2538 | { | |
2539 | if (!zhp->zfs_hdl->libzfs_prop_debug) | |
2540 | return; | |
2541 | int error; | |
2542 | char *poolname = zhp->zpool_hdl->zpool_name; | |
2543 | const char *prop_name = zfs_prop_to_name(prop); | |
2544 | const char *program = | |
2545 | "args = ...\n" | |
2546 | "ds = args['dataset']\n" | |
2547 | "prop = args['property']\n" | |
2548 | "value, setpoint = zfs.get_prop(ds, prop)\n" | |
2549 | "return {value=value, setpoint=setpoint}\n"; | |
2550 | nvlist_t *outnvl; | |
2551 | nvlist_t *retnvl; | |
2552 | nvlist_t *argnvl = fnvlist_alloc(); | |
2553 | ||
2554 | fnvlist_add_string(argnvl, "dataset", zhp->zfs_name); | |
2555 | fnvlist_add_string(argnvl, "property", zfs_prop_to_name(prop)); | |
2556 | ||
5b72a38d | 2557 | error = lzc_channel_program_nosync(poolname, program, |
d99a0153 CW |
2558 | 10 * 1000 * 1000, 10 * 1024 * 1024, argnvl, &outnvl); |
2559 | ||
2560 | if (error == 0) { | |
2561 | retnvl = fnvlist_lookup_nvlist(outnvl, "return"); | |
2562 | if (zfs_prop_get_type(prop) == PROP_TYPE_NUMBER) { | |
2563 | int64_t ans; | |
2564 | error = nvlist_lookup_int64(retnvl, "value", &ans); | |
2565 | if (error != 0) { | |
2566 | (void) fprintf(stderr, "%s: zcp check error: " | |
2567 | "%u\n", prop_name, error); | |
2568 | return; | |
2569 | } | |
2570 | if (ans != intval) { | |
2571 | (void) fprintf(stderr, "%s: zfs found %llu, " | |
2572 | "but zcp found %llu\n", prop_name, | |
2573 | (u_longlong_t)intval, (u_longlong_t)ans); | |
2574 | } | |
2575 | } else { | |
2576 | char *str_ans; | |
2577 | error = nvlist_lookup_string(retnvl, "value", &str_ans); | |
2578 | if (error != 0) { | |
2579 | (void) fprintf(stderr, "%s: zcp check error: " | |
2580 | "%u\n", prop_name, error); | |
2581 | return; | |
2582 | } | |
2583 | if (strcmp(strval, str_ans) != 0) { | |
2584 | (void) fprintf(stderr, | |
2585 | "%s: zfs found '%s', but zcp found '%s'\n", | |
2586 | prop_name, strval, str_ans); | |
2587 | } | |
2588 | } | |
2589 | } else { | |
2590 | (void) fprintf(stderr, "%s: zcp check failed, channel program " | |
2591 | "error: %u\n", prop_name, error); | |
2592 | } | |
2593 | nvlist_free(argnvl); | |
2594 | nvlist_free(outnvl); | |
2595 | } | |
2596 | ||
34dc7c2f BB |
2597 | /* |
2598 | * Retrieve a property from the given object. If 'literal' is specified, then | |
2599 | * numbers are left as exact values. Otherwise, numbers are converted to a | |
2600 | * human-readable form. | |
2601 | * | |
2602 | * Returns 0 on success, or -1 on error. | |
2603 | */ | |
2604 | int | |
2605 | zfs_prop_get(zfs_handle_t *zhp, zfs_prop_t prop, char *propbuf, size_t proplen, | |
2606 | zprop_source_t *src, char *statbuf, size_t statlen, boolean_t literal) | |
2607 | { | |
2608 | char *source = NULL; | |
2609 | uint64_t val; | |
47dfff3b | 2610 | const char *str; |
34dc7c2f | 2611 | const char *strval; |
428870ff | 2612 | boolean_t received = zfs_is_recvd_props_mode(zhp); |
34dc7c2f BB |
2613 | |
2614 | /* | |
2615 | * Check to see if this property applies to our object | |
2616 | */ | |
962d5242 | 2617 | if (!zfs_prop_valid_for_type(prop, zhp->zfs_type, B_FALSE)) |
34dc7c2f BB |
2618 | return (-1); |
2619 | ||
428870ff BB |
2620 | if (received && zfs_prop_readonly(prop)) |
2621 | return (-1); | |
2622 | ||
34dc7c2f BB |
2623 | if (src) |
2624 | *src = ZPROP_SRC_NONE; | |
2625 | ||
2626 | switch (prop) { | |
2627 | case ZFS_PROP_CREATION: | |
2628 | /* | |
2629 | * 'creation' is a time_t stored in the statistics. We convert | |
2630 | * this into a string unless 'literal' is specified. | |
2631 | */ | |
2632 | { | |
2633 | val = getprop_uint64(zhp, prop, &source); | |
2634 | time_t time = (time_t)val; | |
2635 | struct tm t; | |
2636 | ||
2637 | if (literal || | |
2638 | localtime_r(&time, &t) == NULL || | |
2639 | strftime(propbuf, proplen, "%a %b %e %k:%M %Y", | |
2640 | &t) == 0) | |
ba6a2402 | 2641 | (void) snprintf(propbuf, proplen, "%llu", |
02730c33 | 2642 | (u_longlong_t)val); |
34dc7c2f | 2643 | } |
d99a0153 | 2644 | zcp_check(zhp, prop, val, NULL); |
34dc7c2f BB |
2645 | break; |
2646 | ||
2647 | case ZFS_PROP_MOUNTPOINT: | |
2648 | /* | |
2649 | * Getting the precise mountpoint can be tricky. | |
2650 | * | |
2651 | * - for 'none' or 'legacy', return those values. | |
34dc7c2f BB |
2652 | * - for inherited mountpoints, we want to take everything |
2653 | * after our ancestor and append it to the inherited value. | |
2654 | * | |
2655 | * If the pool has an alternate root, we want to prepend that | |
2656 | * root to any values we return. | |
2657 | */ | |
b128c09f | 2658 | |
34dc7c2f BB |
2659 | str = getprop_string(zhp, prop, &source); |
2660 | ||
b128c09f BB |
2661 | if (str[0] == '/') { |
2662 | char buf[MAXPATHLEN]; | |
2663 | char *root = buf; | |
428870ff | 2664 | const char *relpath; |
34dc7c2f | 2665 | |
428870ff BB |
2666 | /* |
2667 | * If we inherit the mountpoint, even from a dataset | |
2668 | * with a received value, the source will be the path of | |
2669 | * the dataset we inherit from. If source is | |
2670 | * ZPROP_SOURCE_VAL_RECVD, the received value is not | |
2671 | * inherited. | |
2672 | */ | |
2673 | if (strcmp(source, ZPROP_SOURCE_VAL_RECVD) == 0) { | |
2674 | relpath = ""; | |
2675 | } else { | |
2676 | relpath = zhp->zfs_name + strlen(source); | |
2677 | if (relpath[0] == '/') | |
2678 | relpath++; | |
2679 | } | |
b128c09f BB |
2680 | |
2681 | if ((zpool_get_prop(zhp->zpool_hdl, | |
2a8b84b7 AS |
2682 | ZPOOL_PROP_ALTROOT, buf, MAXPATHLEN, NULL, |
2683 | B_FALSE)) || (strcmp(root, "-") == 0)) | |
b128c09f BB |
2684 | root[0] = '\0'; |
2685 | /* | |
2686 | * Special case an alternate root of '/'. This will | |
2687 | * avoid having multiple leading slashes in the | |
2688 | * mountpoint path. | |
2689 | */ | |
2690 | if (strcmp(root, "/") == 0) | |
2691 | root++; | |
2692 | ||
2693 | /* | |
2694 | * If the mountpoint is '/' then skip over this | |
2695 | * if we are obtaining either an alternate root or | |
2696 | * an inherited mountpoint. | |
2697 | */ | |
2698 | if (str[1] == '\0' && (root[0] != '\0' || | |
2699 | relpath[0] != '\0')) | |
34dc7c2f BB |
2700 | str++; |
2701 | ||
2702 | if (relpath[0] == '\0') | |
2703 | (void) snprintf(propbuf, proplen, "%s%s", | |
2704 | root, str); | |
2705 | else | |
2706 | (void) snprintf(propbuf, proplen, "%s%s%s%s", | |
2707 | root, str, relpath[0] == '@' ? "" : "/", | |
2708 | relpath); | |
2709 | } else { | |
2710 | /* 'legacy' or 'none' */ | |
2711 | (void) strlcpy(propbuf, str, proplen); | |
2712 | } | |
d99a0153 | 2713 | zcp_check(zhp, prop, 0, propbuf); |
34dc7c2f BB |
2714 | break; |
2715 | ||
2716 | case ZFS_PROP_ORIGIN: | |
47dfff3b MA |
2717 | str = getprop_string(zhp, prop, &source); |
2718 | if (str == NULL) | |
34dc7c2f | 2719 | return (-1); |
47dfff3b | 2720 | (void) strlcpy(propbuf, str, proplen); |
d99a0153 | 2721 | zcp_check(zhp, prop, 0, str); |
34dc7c2f BB |
2722 | break; |
2723 | ||
30af21b0 PD |
2724 | case ZFS_PROP_REDACT_SNAPS: |
2725 | if (get_rsnaps_string(zhp, propbuf, proplen) != 0) | |
2726 | return (-1); | |
2727 | break; | |
2728 | ||
330d06f9 MA |
2729 | case ZFS_PROP_CLONES: |
2730 | if (get_clones_string(zhp, propbuf, proplen) != 0) | |
2731 | return (-1); | |
2732 | break; | |
2733 | ||
34dc7c2f BB |
2734 | case ZFS_PROP_QUOTA: |
2735 | case ZFS_PROP_REFQUOTA: | |
2736 | case ZFS_PROP_RESERVATION: | |
2737 | case ZFS_PROP_REFRESERVATION: | |
2738 | ||
2739 | if (get_numeric_property(zhp, prop, src, &source, &val) != 0) | |
2740 | return (-1); | |
34dc7c2f BB |
2741 | /* |
2742 | * If quota or reservation is 0, we translate this into 'none' | |
2743 | * (unless literal is set), and indicate that it's the default | |
2744 | * value. Otherwise, we print the number nicely and indicate | |
2745 | * that its set locally. | |
2746 | */ | |
2747 | if (val == 0) { | |
2748 | if (literal) | |
2749 | (void) strlcpy(propbuf, "0", proplen); | |
2750 | else | |
2751 | (void) strlcpy(propbuf, "none", proplen); | |
2752 | } else { | |
2753 | if (literal) | |
2754 | (void) snprintf(propbuf, proplen, "%llu", | |
2755 | (u_longlong_t)val); | |
2756 | else | |
e7fbeb60 | 2757 | zfs_nicebytes(val, propbuf, proplen); |
34dc7c2f | 2758 | } |
d99a0153 | 2759 | zcp_check(zhp, prop, val, NULL); |
34dc7c2f BB |
2760 | break; |
2761 | ||
788eb90c JJ |
2762 | case ZFS_PROP_FILESYSTEM_LIMIT: |
2763 | case ZFS_PROP_SNAPSHOT_LIMIT: | |
2764 | case ZFS_PROP_FILESYSTEM_COUNT: | |
2765 | case ZFS_PROP_SNAPSHOT_COUNT: | |
2766 | ||
2767 | if (get_numeric_property(zhp, prop, src, &source, &val) != 0) | |
2768 | return (-1); | |
2769 | ||
2770 | /* | |
2771 | * If limit is UINT64_MAX, we translate this into 'none' (unless | |
2772 | * literal is set), and indicate that it's the default value. | |
2773 | * Otherwise, we print the number nicely and indicate that it's | |
2774 | * set locally. | |
2775 | */ | |
2776 | if (literal) { | |
2777 | (void) snprintf(propbuf, proplen, "%llu", | |
2778 | (u_longlong_t)val); | |
2779 | } else if (val == UINT64_MAX) { | |
2780 | (void) strlcpy(propbuf, "none", proplen); | |
2781 | } else { | |
2782 | zfs_nicenum(val, propbuf, proplen); | |
2783 | } | |
d99a0153 CW |
2784 | |
2785 | zcp_check(zhp, prop, val, NULL); | |
788eb90c JJ |
2786 | break; |
2787 | ||
f5fc4aca | 2788 | case ZFS_PROP_REFRATIO: |
34dc7c2f BB |
2789 | case ZFS_PROP_COMPRESSRATIO: |
2790 | if (get_numeric_property(zhp, prop, src, &source, &val) != 0) | |
2791 | return (-1); | |
b0bd8ffe | 2792 | if (literal) |
2793 | (void) snprintf(propbuf, proplen, "%llu.%02llu", | |
2794 | (u_longlong_t)(val / 100), | |
2795 | (u_longlong_t)(val % 100)); | |
2796 | else | |
2797 | (void) snprintf(propbuf, proplen, "%llu.%02llux", | |
2798 | (u_longlong_t)(val / 100), | |
2799 | (u_longlong_t)(val % 100)); | |
d99a0153 | 2800 | zcp_check(zhp, prop, val, NULL); |
34dc7c2f BB |
2801 | break; |
2802 | ||
2803 | case ZFS_PROP_TYPE: | |
2804 | switch (zhp->zfs_type) { | |
2805 | case ZFS_TYPE_FILESYSTEM: | |
2806 | str = "filesystem"; | |
2807 | break; | |
2808 | case ZFS_TYPE_VOLUME: | |
2809 | str = "volume"; | |
2810 | break; | |
2811 | case ZFS_TYPE_SNAPSHOT: | |
2812 | str = "snapshot"; | |
2813 | break; | |
da536844 MA |
2814 | case ZFS_TYPE_BOOKMARK: |
2815 | str = "bookmark"; | |
2816 | break; | |
34dc7c2f BB |
2817 | default: |
2818 | abort(); | |
2819 | } | |
2820 | (void) snprintf(propbuf, proplen, "%s", str); | |
d99a0153 | 2821 | zcp_check(zhp, prop, 0, propbuf); |
34dc7c2f BB |
2822 | break; |
2823 | ||
2824 | case ZFS_PROP_MOUNTED: | |
2825 | /* | |
2826 | * The 'mounted' property is a pseudo-property that described | |
2827 | * whether the filesystem is currently mounted. Even though | |
2828 | * it's a boolean value, the typical values of "on" and "off" | |
2829 | * don't make sense, so we translate to "yes" and "no". | |
2830 | */ | |
2831 | if (get_numeric_property(zhp, ZFS_PROP_MOUNTED, | |
2832 | src, &source, &val) != 0) | |
2833 | return (-1); | |
2834 | if (val) | |
2835 | (void) strlcpy(propbuf, "yes", proplen); | |
2836 | else | |
2837 | (void) strlcpy(propbuf, "no", proplen); | |
2838 | break; | |
2839 | ||
2840 | case ZFS_PROP_NAME: | |
2841 | /* | |
2842 | * The 'name' property is a pseudo-property derived from the | |
2843 | * dataset name. It is presented as a real property to simplify | |
2844 | * consumers. | |
2845 | */ | |
2846 | (void) strlcpy(propbuf, zhp->zfs_name, proplen); | |
d99a0153 | 2847 | zcp_check(zhp, prop, 0, propbuf); |
34dc7c2f BB |
2848 | break; |
2849 | ||
428870ff BB |
2850 | case ZFS_PROP_MLSLABEL: |
2851 | { | |
d2c15e84 | 2852 | #ifdef HAVE_MLSLABEL |
428870ff BB |
2853 | m_label_t *new_sl = NULL; |
2854 | char *ascii = NULL; /* human readable label */ | |
2855 | ||
2856 | (void) strlcpy(propbuf, | |
2857 | getprop_string(zhp, prop, &source), proplen); | |
2858 | ||
2859 | if (literal || (strcasecmp(propbuf, | |
2860 | ZFS_MLSLABEL_DEFAULT) == 0)) | |
2861 | break; | |
2862 | ||
2863 | /* | |
2864 | * Try to translate the internal hex string to | |
2865 | * human-readable output. If there are any | |
2866 | * problems just use the hex string. | |
2867 | */ | |
2868 | ||
2869 | if (str_to_label(propbuf, &new_sl, MAC_LABEL, | |
2870 | L_NO_CORRECTION, NULL) == -1) { | |
2871 | m_label_free(new_sl); | |
2872 | break; | |
2873 | } | |
2874 | ||
2875 | if (label_to_str(new_sl, &ascii, M_LABEL, | |
2876 | DEF_NAMES) != 0) { | |
2877 | if (ascii) | |
2878 | free(ascii); | |
2879 | m_label_free(new_sl); | |
2880 | break; | |
2881 | } | |
2882 | m_label_free(new_sl); | |
2883 | ||
2884 | (void) strlcpy(propbuf, ascii, proplen); | |
2885 | free(ascii); | |
d2c15e84 BB |
2886 | #else |
2887 | (void) strlcpy(propbuf, | |
2888 | getprop_string(zhp, prop, &source), proplen); | |
2889 | #endif /* HAVE_MLSLABEL */ | |
428870ff BB |
2890 | } |
2891 | break; | |
2892 | ||
08b1b21d | 2893 | case ZFS_PROP_GUID: |
305bc4b3 | 2894 | case ZFS_PROP_CREATETXG: |
b868525b | 2895 | case ZFS_PROP_OBJSETID: |
08b1b21d | 2896 | /* |
b868525b | 2897 | * These properties are stored as numbers, but they are |
2898 | * identifiers. | |
08b1b21d GA |
2899 | * We don't want them to be pretty printed, because pretty |
2900 | * printing mangles the ID into a truncated and useless value. | |
2901 | */ | |
2902 | if (get_numeric_property(zhp, prop, src, &source, &val) != 0) | |
2903 | return (-1); | |
2904 | (void) snprintf(propbuf, proplen, "%llu", (u_longlong_t)val); | |
d99a0153 | 2905 | zcp_check(zhp, prop, val, NULL); |
08b1b21d GA |
2906 | break; |
2907 | ||
e7fbeb60 | 2908 | case ZFS_PROP_REFERENCED: |
2909 | case ZFS_PROP_AVAILABLE: | |
2910 | case ZFS_PROP_USED: | |
2911 | case ZFS_PROP_USEDSNAP: | |
2912 | case ZFS_PROP_USEDDS: | |
2913 | case ZFS_PROP_USEDREFRESERV: | |
2914 | case ZFS_PROP_USEDCHILD: | |
2915 | if (get_numeric_property(zhp, prop, src, &source, &val) != 0) | |
2916 | return (-1); | |
d99a0153 | 2917 | if (literal) { |
e7fbeb60 | 2918 | (void) snprintf(propbuf, proplen, "%llu", |
2919 | (u_longlong_t)val); | |
d99a0153 | 2920 | } else { |
e7fbeb60 | 2921 | zfs_nicebytes(val, propbuf, proplen); |
d99a0153 CW |
2922 | } |
2923 | zcp_check(zhp, prop, val, NULL); | |
e7fbeb60 | 2924 | break; |
2925 | ||
34dc7c2f BB |
2926 | default: |
2927 | switch (zfs_prop_get_type(prop)) { | |
2928 | case PROP_TYPE_NUMBER: | |
2929 | if (get_numeric_property(zhp, prop, src, | |
d99a0153 | 2930 | &source, &val) != 0) { |
34dc7c2f | 2931 | return (-1); |
d99a0153 CW |
2932 | } |
2933 | ||
2934 | if (literal) { | |
34dc7c2f BB |
2935 | (void) snprintf(propbuf, proplen, "%llu", |
2936 | (u_longlong_t)val); | |
d99a0153 | 2937 | } else { |
34dc7c2f | 2938 | zfs_nicenum(val, propbuf, proplen); |
d99a0153 CW |
2939 | } |
2940 | zcp_check(zhp, prop, val, NULL); | |
34dc7c2f BB |
2941 | break; |
2942 | ||
2943 | case PROP_TYPE_STRING: | |
47dfff3b MA |
2944 | str = getprop_string(zhp, prop, &source); |
2945 | if (str == NULL) | |
2946 | return (-1); | |
d99a0153 | 2947 | |
47dfff3b | 2948 | (void) strlcpy(propbuf, str, proplen); |
d99a0153 | 2949 | zcp_check(zhp, prop, 0, str); |
34dc7c2f BB |
2950 | break; |
2951 | ||
2952 | case PROP_TYPE_INDEX: | |
2953 | if (get_numeric_property(zhp, prop, src, | |
2954 | &source, &val) != 0) | |
2955 | return (-1); | |
2956 | if (zfs_prop_index_to_string(prop, val, &strval) != 0) | |
2957 | return (-1); | |
d99a0153 | 2958 | |
34dc7c2f | 2959 | (void) strlcpy(propbuf, strval, proplen); |
d99a0153 | 2960 | zcp_check(zhp, prop, 0, strval); |
34dc7c2f BB |
2961 | break; |
2962 | ||
2963 | default: | |
2964 | abort(); | |
2965 | } | |
2966 | } | |
2967 | ||
2968 | get_source(zhp, src, source, statbuf, statlen); | |
2969 | ||
2970 | return (0); | |
2971 | } | |
2972 | ||
2973 | /* | |
2974 | * Utility function to get the given numeric property. Does no validation that | |
2975 | * the given property is the appropriate type; should only be used with | |
2976 | * hard-coded property types. | |
2977 | */ | |
2978 | uint64_t | |
2979 | zfs_prop_get_int(zfs_handle_t *zhp, zfs_prop_t prop) | |
2980 | { | |
2981 | char *source; | |
689f093e | 2982 | uint64_t val = 0; |
34dc7c2f BB |
2983 | |
2984 | (void) get_numeric_property(zhp, prop, NULL, &source, &val); | |
2985 | ||
2986 | return (val); | |
2987 | } | |
2988 | ||
65c7cc49 | 2989 | static int |
34dc7c2f BB |
2990 | zfs_prop_set_int(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t val) |
2991 | { | |
2992 | char buf[64]; | |
2993 | ||
9babb374 | 2994 | (void) snprintf(buf, sizeof (buf), "%llu", (longlong_t)val); |
34dc7c2f BB |
2995 | return (zfs_prop_set(zhp, zfs_prop_to_name(prop), buf)); |
2996 | } | |
2997 | ||
2998 | /* | |
2999 | * Similar to zfs_prop_get(), but returns the value as an integer. | |
3000 | */ | |
3001 | int | |
3002 | zfs_prop_get_numeric(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t *value, | |
3003 | zprop_source_t *src, char *statbuf, size_t statlen) | |
3004 | { | |
3005 | char *source; | |
3006 | ||
3007 | /* | |
3008 | * Check to see if this property applies to our object | |
3009 | */ | |
962d5242 | 3010 | if (!zfs_prop_valid_for_type(prop, zhp->zfs_type, B_FALSE)) { |
34dc7c2f BB |
3011 | return (zfs_error_fmt(zhp->zfs_hdl, EZFS_PROPTYPE, |
3012 | dgettext(TEXT_DOMAIN, "cannot get property '%s'"), | |
3013 | zfs_prop_to_name(prop))); | |
3014 | } | |
3015 | ||
3016 | if (src) | |
3017 | *src = ZPROP_SRC_NONE; | |
3018 | ||
3019 | if (get_numeric_property(zhp, prop, src, &source, value) != 0) | |
3020 | return (-1); | |
3021 | ||
3022 | get_source(zhp, src, source, statbuf, statlen); | |
3023 | ||
3024 | return (0); | |
3025 | } | |
3026 | ||
be160928 | 3027 | #ifdef HAVE_IDMAP |
9babb374 BB |
3028 | static int |
3029 | idmap_id_to_numeric_domain_rid(uid_t id, boolean_t isuser, | |
3030 | char **domainp, idmap_rid_t *ridp) | |
3031 | { | |
9babb374 BB |
3032 | idmap_get_handle_t *get_hdl = NULL; |
3033 | idmap_stat status; | |
3034 | int err = EINVAL; | |
3035 | ||
572e2857 | 3036 | if (idmap_get_create(&get_hdl) != IDMAP_SUCCESS) |
9babb374 BB |
3037 | goto out; |
3038 | ||
3039 | if (isuser) { | |
3040 | err = idmap_get_sidbyuid(get_hdl, id, | |
3041 | IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); | |
3042 | } else { | |
3043 | err = idmap_get_sidbygid(get_hdl, id, | |
3044 | IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); | |
3045 | } | |
3046 | if (err == IDMAP_SUCCESS && | |
3047 | idmap_get_mappings(get_hdl) == IDMAP_SUCCESS && | |
3048 | status == IDMAP_SUCCESS) | |
3049 | err = 0; | |
3050 | else | |
3051 | err = EINVAL; | |
3052 | out: | |
3053 | if (get_hdl) | |
3054 | idmap_get_destroy(get_hdl); | |
9babb374 BB |
3055 | return (err); |
3056 | } | |
be160928 | 3057 | #endif /* HAVE_IDMAP */ |
9babb374 BB |
3058 | |
3059 | /* | |
3060 | * convert the propname into parameters needed by kernel | |
3061 | * Eg: userquota@ahrens -> ZFS_PROP_USERQUOTA, "", 126829 | |
3062 | * Eg: userused@matt@domain -> ZFS_PROP_USERUSED, "S-1-123-456", 789 | |
ada8ec1e SC |
3063 | * Eg: groupquota@staff -> ZFS_PROP_GROUPQUOTA, "", 1234 |
3064 | * Eg: groupused@staff -> ZFS_PROP_GROUPUSED, "", 1234 | |
9c5167d1 NF |
3065 | * Eg: projectquota@123 -> ZFS_PROP_PROJECTQUOTA, "", 123 |
3066 | * Eg: projectused@789 -> ZFS_PROP_PROJECTUSED, "", 789 | |
9babb374 BB |
3067 | */ |
3068 | static int | |
3069 | userquota_propname_decode(const char *propname, boolean_t zoned, | |
3070 | zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp) | |
3071 | { | |
3072 | zfs_userquota_prop_t type; | |
ada8ec1e | 3073 | char *cp; |
9babb374 | 3074 | boolean_t isuser; |
ada8ec1e | 3075 | boolean_t isgroup; |
9c5167d1 | 3076 | boolean_t isproject; |
ada8ec1e SC |
3077 | struct passwd *pw; |
3078 | struct group *gr; | |
9babb374 BB |
3079 | |
3080 | domain[0] = '\0'; | |
3081 | ||
9c5167d1 | 3082 | /* Figure out the property type ({user|group|project}{quota|space}) */ |
9babb374 BB |
3083 | for (type = 0; type < ZFS_NUM_USERQUOTA_PROPS; type++) { |
3084 | if (strncmp(propname, zfs_userquota_prop_prefixes[type], | |
3085 | strlen(zfs_userquota_prop_prefixes[type])) == 0) | |
3086 | break; | |
3087 | } | |
3088 | if (type == ZFS_NUM_USERQUOTA_PROPS) | |
3089 | return (EINVAL); | |
3090 | *typep = type; | |
3091 | ||
1de321e6 | 3092 | isuser = (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_USERUSED || |
02730c33 BB |
3093 | type == ZFS_PROP_USEROBJQUOTA || |
3094 | type == ZFS_PROP_USEROBJUSED); | |
1de321e6 | 3095 | isgroup = (type == ZFS_PROP_GROUPQUOTA || type == ZFS_PROP_GROUPUSED || |
02730c33 BB |
3096 | type == ZFS_PROP_GROUPOBJQUOTA || |
3097 | type == ZFS_PROP_GROUPOBJUSED); | |
9c5167d1 NF |
3098 | isproject = (type == ZFS_PROP_PROJECTQUOTA || |
3099 | type == ZFS_PROP_PROJECTUSED || type == ZFS_PROP_PROJECTOBJQUOTA || | |
3100 | type == ZFS_PROP_PROJECTOBJUSED); | |
9babb374 BB |
3101 | |
3102 | cp = strchr(propname, '@') + 1; | |
3103 | ||
ada8ec1e SC |
3104 | if (isuser && (pw = getpwnam(cp)) != NULL) { |
3105 | if (zoned && getzoneid() == GLOBAL_ZONEID) | |
3106 | return (ENOENT); | |
3107 | *ridp = pw->pw_uid; | |
3108 | } else if (isgroup && (gr = getgrnam(cp)) != NULL) { | |
3109 | if (zoned && getzoneid() == GLOBAL_ZONEID) | |
3110 | return (ENOENT); | |
3111 | *ridp = gr->gr_gid; | |
9c5167d1 | 3112 | } else if (!isproject && strchr(cp, '@')) { |
be160928 | 3113 | #ifdef HAVE_IDMAP |
9babb374 BB |
3114 | /* |
3115 | * It's a SID name (eg "user@domain") that needs to be | |
45d1cae3 | 3116 | * turned into S-1-domainID-RID. |
9babb374 | 3117 | */ |
45d1cae3 | 3118 | directory_error_t e; |
ada8ec1e SC |
3119 | char *numericsid = NULL; |
3120 | char *end; | |
3121 | ||
9babb374 BB |
3122 | if (zoned && getzoneid() == GLOBAL_ZONEID) |
3123 | return (ENOENT); | |
45d1cae3 BB |
3124 | if (isuser) { |
3125 | e = directory_sid_from_user_name(NULL, | |
3126 | cp, &numericsid); | |
3127 | } else { | |
3128 | e = directory_sid_from_group_name(NULL, | |
3129 | cp, &numericsid); | |
3130 | } | |
3131 | if (e != NULL) { | |
3132 | directory_error_free(e); | |
9babb374 | 3133 | return (ENOENT); |
45d1cae3 BB |
3134 | } |
3135 | if (numericsid == NULL) | |
9babb374 | 3136 | return (ENOENT); |
45d1cae3 | 3137 | cp = numericsid; |
45d1cae3 | 3138 | (void) strlcpy(domain, cp, domainlen); |
9babb374 BB |
3139 | cp = strrchr(domain, '-'); |
3140 | *cp = '\0'; | |
3141 | cp++; | |
3142 | ||
3143 | errno = 0; | |
3144 | *ridp = strtoull(cp, &end, 10); | |
ada8ec1e SC |
3145 | free(numericsid); |
3146 | ||
9babb374 BB |
3147 | if (errno != 0 || *end != '\0') |
3148 | return (EINVAL); | |
ada8ec1e SC |
3149 | #else |
3150 | return (ENOSYS); | |
3151 | #endif /* HAVE_IDMAP */ | |
9babb374 | 3152 | } else { |
9c5167d1 | 3153 | /* It's a user/group/project ID (eg "12345"). */ |
ada8ec1e | 3154 | uid_t id; |
ada8ec1e | 3155 | char *end; |
ada8ec1e | 3156 | id = strtoul(cp, &end, 10); |
9babb374 BB |
3157 | if (*end != '\0') |
3158 | return (EINVAL); | |
9c5167d1 | 3159 | if (id > MAXUID && !isproject) { |
5e6320cd | 3160 | #ifdef HAVE_IDMAP |
9babb374 | 3161 | /* It's an ephemeral ID. */ |
5e6320cd MM |
3162 | idmap_rid_t rid; |
3163 | char *mapdomain; | |
3164 | ||
9babb374 BB |
3165 | if (idmap_id_to_numeric_domain_rid(id, isuser, |
3166 | &mapdomain, &rid) != 0) | |
3167 | return (ENOENT); | |
45d1cae3 | 3168 | (void) strlcpy(domain, mapdomain, domainlen); |
9babb374 | 3169 | *ridp = rid; |
5e6320cd MM |
3170 | #else |
3171 | return (ENOSYS); | |
3172 | #endif /* HAVE_IDMAP */ | |
9babb374 BB |
3173 | } else { |
3174 | *ridp = id; | |
3175 | } | |
3176 | } | |
3177 | ||
3178 | return (0); | |
3179 | } | |
3180 | ||
3181 | static int | |
3182 | zfs_prop_get_userquota_common(zfs_handle_t *zhp, const char *propname, | |
3183 | uint64_t *propvalue, zfs_userquota_prop_t *typep) | |
3184 | { | |
3185 | int err; | |
13fe0198 | 3186 | zfs_cmd_t zc = {"\0"}; |
9babb374 | 3187 | |
330d06f9 | 3188 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); |
9babb374 BB |
3189 | |
3190 | err = userquota_propname_decode(propname, | |
3191 | zfs_prop_get_int(zhp, ZFS_PROP_ZONED), | |
3192 | typep, zc.zc_value, sizeof (zc.zc_value), &zc.zc_guid); | |
3193 | zc.zc_objset_type = *typep; | |
3194 | if (err) | |
3195 | return (err); | |
3196 | ||
b834b58a | 3197 | err = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_USERSPACE_ONE, &zc); |
9babb374 BB |
3198 | if (err) |
3199 | return (err); | |
3200 | ||
3201 | *propvalue = zc.zc_cookie; | |
3202 | return (0); | |
3203 | } | |
3204 | ||
3205 | int | |
3206 | zfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname, | |
3207 | uint64_t *propvalue) | |
3208 | { | |
3209 | zfs_userquota_prop_t type; | |
3210 | ||
3211 | return (zfs_prop_get_userquota_common(zhp, propname, propvalue, | |
3212 | &type)); | |
3213 | } | |
3214 | ||
3215 | int | |
3216 | zfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname, | |
3217 | char *propbuf, int proplen, boolean_t literal) | |
3218 | { | |
3219 | int err; | |
3220 | uint64_t propvalue; | |
3221 | zfs_userquota_prop_t type; | |
3222 | ||
3223 | err = zfs_prop_get_userquota_common(zhp, propname, &propvalue, | |
3224 | &type); | |
3225 | ||
3226 | if (err) | |
3227 | return (err); | |
3228 | ||
3229 | if (literal) { | |
b8864a23 | 3230 | (void) snprintf(propbuf, proplen, "%llu", |
ba6a2402 | 3231 | (u_longlong_t)propvalue); |
9babb374 | 3232 | } else if (propvalue == 0 && |
1de321e6 | 3233 | (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_GROUPQUOTA || |
9c5167d1 | 3234 | type == ZFS_PROP_USEROBJQUOTA || type == ZFS_PROP_GROUPOBJQUOTA || |
2705ebf0 NF |
3235 | type == ZFS_PROP_PROJECTQUOTA || |
3236 | type == ZFS_PROP_PROJECTOBJQUOTA)) { | |
9babb374 | 3237 | (void) strlcpy(propbuf, "none", proplen); |
e7fbeb60 | 3238 | } else if (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_GROUPQUOTA || |
9c5167d1 NF |
3239 | type == ZFS_PROP_USERUSED || type == ZFS_PROP_GROUPUSED || |
3240 | type == ZFS_PROP_PROJECTUSED || type == ZFS_PROP_PROJECTQUOTA) { | |
e7fbeb60 | 3241 | zfs_nicebytes(propvalue, propbuf, proplen); |
9babb374 BB |
3242 | } else { |
3243 | zfs_nicenum(propvalue, propbuf, proplen); | |
3244 | } | |
3245 | return (0); | |
3246 | } | |
3247 | ||
30af21b0 PD |
3248 | /* |
3249 | * propname must start with "written@" or "written#". | |
3250 | */ | |
330d06f9 MA |
3251 | int |
3252 | zfs_prop_get_written_int(zfs_handle_t *zhp, const char *propname, | |
3253 | uint64_t *propvalue) | |
34dc7c2f | 3254 | { |
330d06f9 | 3255 | int err; |
13fe0198 | 3256 | zfs_cmd_t zc = {"\0"}; |
330d06f9 | 3257 | const char *snapname; |
34dc7c2f | 3258 | |
330d06f9 | 3259 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); |
34dc7c2f | 3260 | |
30af21b0 PD |
3261 | assert(zfs_prop_written(propname)); |
3262 | snapname = propname + strlen("written@"); | |
3263 | if (strchr(snapname, '@') != NULL || strchr(snapname, '#') != NULL) { | |
3264 | /* full snapshot or bookmark name specified */ | |
330d06f9 MA |
3265 | (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); |
3266 | } else { | |
3267 | /* snapname is the short name, append it to zhp's fsname */ | |
3268 | char *cp; | |
3269 | ||
3270 | (void) strlcpy(zc.zc_value, zhp->zfs_name, | |
3271 | sizeof (zc.zc_value)); | |
3272 | cp = strchr(zc.zc_value, '@'); | |
3273 | if (cp != NULL) | |
3274 | *cp = '\0'; | |
30af21b0 | 3275 | (void) strlcat(zc.zc_value, snapname - 1, sizeof (zc.zc_value)); |
330d06f9 | 3276 | } |
fb5f0bc8 | 3277 | |
b834b58a | 3278 | err = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_SPACE_WRITTEN, &zc); |
330d06f9 MA |
3279 | if (err) |
3280 | return (err); | |
fb5f0bc8 | 3281 | |
330d06f9 MA |
3282 | *propvalue = zc.zc_cookie; |
3283 | return (0); | |
fb5f0bc8 BB |
3284 | } |
3285 | ||
34dc7c2f | 3286 | int |
330d06f9 MA |
3287 | zfs_prop_get_written(zfs_handle_t *zhp, const char *propname, |
3288 | char *propbuf, int proplen, boolean_t literal) | |
34dc7c2f | 3289 | { |
330d06f9 MA |
3290 | int err; |
3291 | uint64_t propvalue; | |
34dc7c2f | 3292 | |
330d06f9 | 3293 | err = zfs_prop_get_written_int(zhp, propname, &propvalue); |
fb5f0bc8 | 3294 | |
330d06f9 MA |
3295 | if (err) |
3296 | return (err); | |
34dc7c2f | 3297 | |
330d06f9 | 3298 | if (literal) { |
ba6a2402 BB |
3299 | (void) snprintf(propbuf, proplen, "%llu", |
3300 | (u_longlong_t)propvalue); | |
330d06f9 | 3301 | } else { |
e7fbeb60 | 3302 | zfs_nicebytes(propvalue, propbuf, proplen); |
34dc7c2f | 3303 | } |
330d06f9 MA |
3304 | |
3305 | return (0); | |
34dc7c2f BB |
3306 | } |
3307 | ||
34dc7c2f | 3308 | /* |
330d06f9 | 3309 | * Returns the name of the given zfs handle. |
34dc7c2f | 3310 | */ |
330d06f9 MA |
3311 | const char * |
3312 | zfs_get_name(const zfs_handle_t *zhp) | |
34dc7c2f | 3313 | { |
330d06f9 MA |
3314 | return (zhp->zfs_name); |
3315 | } | |
34dc7c2f | 3316 | |
d21d5b82 GDN |
3317 | /* |
3318 | * Returns the name of the parent pool for the given zfs handle. | |
3319 | */ | |
3320 | const char * | |
3321 | zfs_get_pool_name(const zfs_handle_t *zhp) | |
3322 | { | |
3323 | return (zhp->zpool_hdl->zpool_name); | |
3324 | } | |
3325 | ||
330d06f9 MA |
3326 | /* |
3327 | * Returns the type of the given zfs handle. | |
3328 | */ | |
3329 | zfs_type_t | |
3330 | zfs_get_type(const zfs_handle_t *zhp) | |
3331 | { | |
3332 | return (zhp->zfs_type); | |
34dc7c2f BB |
3333 | } |
3334 | ||
428870ff BB |
3335 | /* |
3336 | * Is one dataset name a child dataset of another? | |
3337 | * | |
3338 | * Needs to handle these cases: | |
3339 | * Dataset 1 "a/foo" "a/foo" "a/foo" "a/foo" | |
3340 | * Dataset 2 "a/fo" "a/foobar" "a/bar/baz" "a/foo/bar" | |
3341 | * Descendant? No. No. No. Yes. | |
3342 | */ | |
3343 | static boolean_t | |
3344 | is_descendant(const char *ds1, const char *ds2) | |
3345 | { | |
3346 | size_t d1len = strlen(ds1); | |
3347 | ||
3348 | /* ds2 can't be a descendant if it's smaller */ | |
3349 | if (strlen(ds2) < d1len) | |
3350 | return (B_FALSE); | |
3351 | ||
3352 | /* otherwise, compare strings and verify that there's a '/' char */ | |
3353 | return (ds2[d1len] == '/' && (strncmp(ds1, ds2, d1len) == 0)); | |
3354 | } | |
3355 | ||
34dc7c2f BB |
3356 | /* |
3357 | * Given a complete name, return just the portion that refers to the parent. | |
330d06f9 MA |
3358 | * Will return -1 if there is no parent (path is just the name of the |
3359 | * pool). | |
34dc7c2f BB |
3360 | */ |
3361 | static int | |
3362 | parent_name(const char *path, char *buf, size_t buflen) | |
3363 | { | |
330d06f9 | 3364 | char *slashp; |
34dc7c2f | 3365 | |
330d06f9 | 3366 | (void) strlcpy(buf, path, buflen); |
34dc7c2f | 3367 | |
330d06f9 MA |
3368 | if ((slashp = strrchr(buf, '/')) == NULL) |
3369 | return (-1); | |
3370 | *slashp = '\0'; | |
34dc7c2f BB |
3371 | |
3372 | return (0); | |
3373 | } | |
3374 | ||
b5256303 TC |
3375 | int |
3376 | zfs_parent_name(zfs_handle_t *zhp, char *buf, size_t buflen) | |
3377 | { | |
3378 | return (parent_name(zfs_get_name(zhp), buf, buflen)); | |
3379 | } | |
3380 | ||
34dc7c2f BB |
3381 | /* |
3382 | * If accept_ancestor is false, then check to make sure that the given path has | |
3383 | * a parent, and that it exists. If accept_ancestor is true, then find the | |
3384 | * closest existing ancestor for the given path. In prefixlen return the | |
3385 | * length of already existing prefix of the given path. We also fetch the | |
3386 | * 'zoned' property, which is used to validate property settings when creating | |
3387 | * new datasets. | |
3388 | */ | |
3389 | static int | |
3390 | check_parents(libzfs_handle_t *hdl, const char *path, uint64_t *zoned, | |
3391 | boolean_t accept_ancestor, int *prefixlen) | |
3392 | { | |
13fe0198 | 3393 | zfs_cmd_t zc = {"\0"}; |
eca7b760 | 3394 | char parent[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f BB |
3395 | char *slash; |
3396 | zfs_handle_t *zhp; | |
3397 | char errbuf[1024]; | |
428870ff | 3398 | uint64_t is_zoned; |
34dc7c2f | 3399 | |
fb5f0bc8 BB |
3400 | (void) snprintf(errbuf, sizeof (errbuf), |
3401 | dgettext(TEXT_DOMAIN, "cannot create '%s'"), path); | |
34dc7c2f BB |
3402 | |
3403 | /* get parent, and check to see if this is just a pool */ | |
3404 | if (parent_name(path, parent, sizeof (parent)) != 0) { | |
3405 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3406 | "missing dataset name")); | |
3407 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
3408 | } | |
3409 | ||
3410 | /* check to see if the pool exists */ | |
3411 | if ((slash = strchr(parent, '/')) == NULL) | |
3412 | slash = parent + strlen(parent); | |
3413 | (void) strncpy(zc.zc_name, parent, slash - parent); | |
3414 | zc.zc_name[slash - parent] = '\0'; | |
b834b58a | 3415 | if (zfs_ioctl(hdl, ZFS_IOC_OBJSET_STATS, &zc) != 0 && |
34dc7c2f BB |
3416 | errno == ENOENT) { |
3417 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3418 | "no such pool '%s'"), zc.zc_name); | |
3419 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
3420 | } | |
3421 | ||
3422 | /* check to see if the parent dataset exists */ | |
3423 | while ((zhp = make_dataset_handle(hdl, parent)) == NULL) { | |
3424 | if (errno == ENOENT && accept_ancestor) { | |
3425 | /* | |
3426 | * Go deeper to find an ancestor, give up on top level. | |
3427 | */ | |
3428 | if (parent_name(parent, parent, sizeof (parent)) != 0) { | |
3429 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3430 | "no such pool '%s'"), zc.zc_name); | |
3431 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
3432 | } | |
3433 | } else if (errno == ENOENT) { | |
3434 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3435 | "parent does not exist")); | |
3436 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
3437 | } else | |
3438 | return (zfs_standard_error(hdl, errno, errbuf)); | |
3439 | } | |
3440 | ||
428870ff BB |
3441 | is_zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); |
3442 | if (zoned != NULL) | |
3443 | *zoned = is_zoned; | |
3444 | ||
34dc7c2f | 3445 | /* we are in a non-global zone, but parent is in the global zone */ |
428870ff | 3446 | if (getzoneid() != GLOBAL_ZONEID && !is_zoned) { |
34dc7c2f BB |
3447 | (void) zfs_standard_error(hdl, EPERM, errbuf); |
3448 | zfs_close(zhp); | |
3449 | return (-1); | |
3450 | } | |
3451 | ||
3452 | /* make sure parent is a filesystem */ | |
3453 | if (zfs_get_type(zhp) != ZFS_TYPE_FILESYSTEM) { | |
3454 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3455 | "parent is not a filesystem")); | |
3456 | (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); | |
3457 | zfs_close(zhp); | |
3458 | return (-1); | |
3459 | } | |
3460 | ||
3461 | zfs_close(zhp); | |
3462 | if (prefixlen != NULL) | |
3463 | *prefixlen = strlen(parent); | |
3464 | return (0); | |
3465 | } | |
3466 | ||
3467 | /* | |
3468 | * Finds whether the dataset of the given type(s) exists. | |
3469 | */ | |
3470 | boolean_t | |
3471 | zfs_dataset_exists(libzfs_handle_t *hdl, const char *path, zfs_type_t types) | |
3472 | { | |
3473 | zfs_handle_t *zhp; | |
3474 | ||
3475 | if (!zfs_validate_name(hdl, path, types, B_FALSE)) | |
3476 | return (B_FALSE); | |
3477 | ||
3478 | /* | |
3479 | * Try to get stats for the dataset, which will tell us if it exists. | |
3480 | */ | |
3481 | if ((zhp = make_dataset_handle(hdl, path)) != NULL) { | |
3482 | int ds_type = zhp->zfs_type; | |
3483 | ||
3484 | zfs_close(zhp); | |
3485 | if (types & ds_type) | |
3486 | return (B_TRUE); | |
3487 | } | |
3488 | return (B_FALSE); | |
3489 | } | |
3490 | ||
3491 | /* | |
3492 | * Given a path to 'target', create all the ancestors between | |
3493 | * the prefixlen portion of the path, and the target itself. | |
3494 | * Fail if the initial prefixlen-ancestor does not already exist. | |
3495 | */ | |
3496 | int | |
3497 | create_parents(libzfs_handle_t *hdl, char *target, int prefixlen) | |
3498 | { | |
3499 | zfs_handle_t *h; | |
3500 | char *cp; | |
3501 | const char *opname; | |
3502 | ||
3503 | /* make sure prefix exists */ | |
3504 | cp = target + prefixlen; | |
3505 | if (*cp != '/') { | |
3506 | assert(strchr(cp, '/') == NULL); | |
3507 | h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); | |
3508 | } else { | |
3509 | *cp = '\0'; | |
3510 | h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); | |
3511 | *cp = '/'; | |
3512 | } | |
3513 | if (h == NULL) | |
3514 | return (-1); | |
3515 | zfs_close(h); | |
3516 | ||
3517 | /* | |
3518 | * Attempt to create, mount, and share any ancestor filesystems, | |
3519 | * up to the prefixlen-long one. | |
3520 | */ | |
3521 | for (cp = target + prefixlen + 1; | |
23d70cde | 3522 | (cp = strchr(cp, '/')) != NULL; *cp = '/', cp++) { |
34dc7c2f BB |
3523 | |
3524 | *cp = '\0'; | |
3525 | ||
3526 | h = make_dataset_handle(hdl, target); | |
3527 | if (h) { | |
3528 | /* it already exists, nothing to do here */ | |
3529 | zfs_close(h); | |
3530 | continue; | |
3531 | } | |
3532 | ||
34dc7c2f BB |
3533 | if (zfs_create(hdl, target, ZFS_TYPE_FILESYSTEM, |
3534 | NULL) != 0) { | |
34dc7c2f BB |
3535 | opname = dgettext(TEXT_DOMAIN, "create"); |
3536 | goto ancestorerr; | |
3537 | } | |
3538 | ||
34dc7c2f BB |
3539 | h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); |
3540 | if (h == NULL) { | |
3541 | opname = dgettext(TEXT_DOMAIN, "open"); | |
3542 | goto ancestorerr; | |
3543 | } | |
3544 | ||
3545 | if (zfs_mount(h, NULL, 0) != 0) { | |
3546 | opname = dgettext(TEXT_DOMAIN, "mount"); | |
3547 | goto ancestorerr; | |
3548 | } | |
3549 | ||
3550 | if (zfs_share(h) != 0) { | |
3551 | opname = dgettext(TEXT_DOMAIN, "share"); | |
3552 | goto ancestorerr; | |
3553 | } | |
3554 | ||
3555 | zfs_close(h); | |
3556 | } | |
c15d36c6 | 3557 | zfs_commit_all_shares(); |
34dc7c2f BB |
3558 | |
3559 | return (0); | |
3560 | ||
3561 | ancestorerr: | |
3562 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3563 | "failed to %s ancestor '%s'"), opname, target); | |
3564 | return (-1); | |
3565 | } | |
3566 | ||
3567 | /* | |
3568 | * Creates non-existing ancestors of the given path. | |
3569 | */ | |
3570 | int | |
3571 | zfs_create_ancestors(libzfs_handle_t *hdl, const char *path) | |
3572 | { | |
3573 | int prefix; | |
34dc7c2f | 3574 | char *path_copy; |
a7ed98d8 | 3575 | char errbuf[1024]; |
d4ed6673 | 3576 | int rc = 0; |
34dc7c2f | 3577 | |
a7ed98d8 SD |
3578 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, |
3579 | "cannot create '%s'"), path); | |
3580 | ||
3581 | /* | |
3582 | * Check that we are not passing the nesting limit | |
3583 | * before we start creating any ancestors. | |
3584 | */ | |
3585 | if (dataset_nestcheck(path) != 0) { | |
3586 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3587 | "maximum name nesting depth exceeded")); | |
3588 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
3589 | } | |
3590 | ||
428870ff | 3591 | if (check_parents(hdl, path, NULL, B_TRUE, &prefix) != 0) |
34dc7c2f BB |
3592 | return (-1); |
3593 | ||
3594 | if ((path_copy = strdup(path)) != NULL) { | |
3595 | rc = create_parents(hdl, path_copy, prefix); | |
3596 | free(path_copy); | |
3597 | } | |
3598 | if (path_copy == NULL || rc != 0) | |
3599 | return (-1); | |
3600 | ||
3601 | return (0); | |
3602 | } | |
3603 | ||
3604 | /* | |
3605 | * Create a new filesystem or volume. | |
3606 | */ | |
3607 | int | |
3608 | zfs_create(libzfs_handle_t *hdl, const char *path, zfs_type_t type, | |
3609 | nvlist_t *props) | |
3610 | { | |
34dc7c2f BB |
3611 | int ret; |
3612 | uint64_t size = 0; | |
3613 | uint64_t blocksize = zfs_prop_default_numeric(ZFS_PROP_VOLBLOCKSIZE); | |
34dc7c2f | 3614 | uint64_t zoned; |
e67a7ffb | 3615 | enum lzc_dataset_type ost; |
78d95eaa | 3616 | zpool_handle_t *zpool_handle; |
b5256303 TC |
3617 | uint8_t *wkeydata = NULL; |
3618 | uint_t wkeylen = 0; | |
3619 | char errbuf[1024]; | |
3620 | char parent[ZFS_MAX_DATASET_NAME_LEN]; | |
34dc7c2f BB |
3621 | |
3622 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3623 | "cannot create '%s'"), path); | |
3624 | ||
3625 | /* validate the path, taking care to note the extended error message */ | |
3626 | if (!zfs_validate_name(hdl, path, type, B_TRUE)) | |
3627 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
3628 | ||
a7ed98d8 SD |
3629 | if (dataset_nestcheck(path) != 0) { |
3630 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3631 | "maximum name nesting depth exceeded")); | |
3632 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
3633 | } | |
3634 | ||
34dc7c2f BB |
3635 | /* validate parents exist */ |
3636 | if (check_parents(hdl, path, &zoned, B_FALSE, NULL) != 0) | |
3637 | return (-1); | |
3638 | ||
3639 | /* | |
3640 | * The failure modes when creating a dataset of a different type over | |
3641 | * one that already exists is a little strange. In particular, if you | |
3642 | * try to create a dataset on top of an existing dataset, the ioctl() | |
3643 | * will return ENOENT, not EEXIST. To prevent this from happening, we | |
3644 | * first try to see if the dataset exists. | |
3645 | */ | |
6f1ffb06 | 3646 | if (zfs_dataset_exists(hdl, path, ZFS_TYPE_DATASET)) { |
34dc7c2f BB |
3647 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
3648 | "dataset already exists")); | |
3649 | return (zfs_error(hdl, EZFS_EXISTS, errbuf)); | |
3650 | } | |
3651 | ||
3652 | if (type == ZFS_TYPE_VOLUME) | |
e67a7ffb | 3653 | ost = LZC_DATSET_TYPE_ZVOL; |
34dc7c2f | 3654 | else |
e67a7ffb | 3655 | ost = LZC_DATSET_TYPE_ZFS; |
34dc7c2f | 3656 | |
82f6f6e6 | 3657 | /* open zpool handle for prop validation */ |
eca7b760 | 3658 | char pool_path[ZFS_MAX_DATASET_NAME_LEN]; |
82f6f6e6 JS |
3659 | (void) strlcpy(pool_path, path, sizeof (pool_path)); |
3660 | ||
3661 | /* truncate pool_path at first slash */ | |
3662 | char *p = strchr(pool_path, '/'); | |
3663 | if (p != NULL) | |
3664 | *p = '\0'; | |
3665 | ||
78d95eaa | 3666 | if ((zpool_handle = zpool_open(hdl, pool_path)) == NULL) |
3667 | return (-1); | |
82f6f6e6 | 3668 | |
b128c09f | 3669 | if (props && (props = zfs_valid_proplist(hdl, type, props, |
b5256303 | 3670 | zoned, NULL, zpool_handle, B_TRUE, errbuf)) == 0) { |
82f6f6e6 | 3671 | zpool_close(zpool_handle); |
34dc7c2f | 3672 | return (-1); |
82f6f6e6 JS |
3673 | } |
3674 | zpool_close(zpool_handle); | |
34dc7c2f BB |
3675 | |
3676 | if (type == ZFS_TYPE_VOLUME) { | |
3677 | /* | |
3678 | * If we are creating a volume, the size and block size must | |
3679 | * satisfy a few restraints. First, the blocksize must be a | |
3680 | * valid block size between SPA_{MIN,MAX}BLOCKSIZE. Second, the | |
3681 | * volsize must be a multiple of the block size, and cannot be | |
3682 | * zero. | |
3683 | */ | |
3684 | if (props == NULL || nvlist_lookup_uint64(props, | |
3685 | zfs_prop_to_name(ZFS_PROP_VOLSIZE), &size) != 0) { | |
3686 | nvlist_free(props); | |
3687 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3688 | "missing volume size")); | |
3689 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
3690 | } | |
3691 | ||
3692 | if ((ret = nvlist_lookup_uint64(props, | |
3693 | zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
3694 | &blocksize)) != 0) { | |
3695 | if (ret == ENOENT) { | |
3696 | blocksize = zfs_prop_default_numeric( | |
3697 | ZFS_PROP_VOLBLOCKSIZE); | |
3698 | } else { | |
3699 | nvlist_free(props); | |
3700 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3701 | "missing volume block size")); | |
3702 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
3703 | } | |
3704 | } | |
3705 | ||
3706 | if (size == 0) { | |
3707 | nvlist_free(props); | |
3708 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3709 | "volume size cannot be zero")); | |
3710 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
3711 | } | |
3712 | ||
3713 | if (size % blocksize != 0) { | |
3714 | nvlist_free(props); | |
3715 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3716 | "volume size must be a multiple of volume block " | |
3717 | "size")); | |
3718 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
3719 | } | |
3720 | } | |
3721 | ||
b5256303 | 3722 | (void) parent_name(path, parent, sizeof (parent)); |
d9c460a0 TC |
3723 | if (zfs_crypto_create(hdl, parent, props, NULL, B_TRUE, |
3724 | &wkeydata, &wkeylen) != 0) { | |
b5256303 TC |
3725 | nvlist_free(props); |
3726 | return (zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf)); | |
3727 | } | |
3728 | ||
34dc7c2f | 3729 | /* create the dataset */ |
b5256303 | 3730 | ret = lzc_create(path, ost, props, wkeydata, wkeylen); |
6f1ffb06 | 3731 | nvlist_free(props); |
b5256303 TC |
3732 | if (wkeydata != NULL) |
3733 | free(wkeydata); | |
34dc7c2f | 3734 | |
34dc7c2f BB |
3735 | /* check for failure */ |
3736 | if (ret != 0) { | |
34dc7c2f BB |
3737 | switch (errno) { |
3738 | case ENOENT: | |
3739 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3740 | "no such parent '%s'"), parent); | |
3741 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
3742 | ||
34dc7c2f BB |
3743 | case ENOTSUP: |
3744 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3745 | "pool must be upgraded to set this " | |
3746 | "property or value")); | |
3747 | return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); | |
b5256303 TC |
3748 | |
3749 | case EACCES: | |
3750 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3751 | "encryption root's key is not loaded " | |
3752 | "or provided")); | |
3753 | return (zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf)); | |
3754 | ||
bcb1a8a2 YP |
3755 | case ERANGE: |
3756 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3757 | "invalid property value(s) specified")); | |
3758 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
34dc7c2f BB |
3759 | #ifdef _ILP32 |
3760 | case EOVERFLOW: | |
3761 | /* | |
3762 | * This platform can't address a volume this big. | |
3763 | */ | |
3764 | if (type == ZFS_TYPE_VOLUME) | |
3765 | return (zfs_error(hdl, EZFS_VOLTOOBIG, | |
3766 | errbuf)); | |
3767 | #endif | |
3768 | /* FALLTHROUGH */ | |
3769 | default: | |
3770 | return (zfs_standard_error(hdl, errno, errbuf)); | |
3771 | } | |
3772 | } | |
3773 | ||
3774 | return (0); | |
3775 | } | |
3776 | ||
3777 | /* | |
3778 | * Destroys the given dataset. The caller must make sure that the filesystem | |
e956d651 CS |
3779 | * isn't mounted, and that there are no active dependents. If the file system |
3780 | * does not exist this function does nothing. | |
34dc7c2f BB |
3781 | */ |
3782 | int | |
45d1cae3 | 3783 | zfs_destroy(zfs_handle_t *zhp, boolean_t defer) |
34dc7c2f | 3784 | { |
dc1c630b AG |
3785 | int error; |
3786 | ||
3787 | if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT && defer) | |
3788 | return (EINVAL); | |
34dc7c2f | 3789 | |
da536844 MA |
3790 | if (zhp->zfs_type == ZFS_TYPE_BOOKMARK) { |
3791 | nvlist_t *nv = fnvlist_alloc(); | |
3792 | fnvlist_add_boolean(nv, zhp->zfs_name); | |
dc1c630b | 3793 | error = lzc_destroy_bookmarks(nv, NULL); |
da536844 MA |
3794 | fnvlist_free(nv); |
3795 | if (error != 0) { | |
dc1c630b | 3796 | return (zfs_standard_error_fmt(zhp->zfs_hdl, error, |
da536844 MA |
3797 | dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), |
3798 | zhp->zfs_name)); | |
3799 | } | |
3800 | return (0); | |
3801 | } | |
3802 | ||
dc1c630b AG |
3803 | if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { |
3804 | nvlist_t *nv = fnvlist_alloc(); | |
3805 | fnvlist_add_boolean(nv, zhp->zfs_name); | |
3806 | error = lzc_destroy_snaps(nv, defer, NULL); | |
3807 | fnvlist_free(nv); | |
34dc7c2f | 3808 | } else { |
dc1c630b | 3809 | error = lzc_destroy(zhp->zfs_name); |
34dc7c2f BB |
3810 | } |
3811 | ||
dc1c630b | 3812 | if (error != 0 && error != ENOENT) { |
34dc7c2f BB |
3813 | return (zfs_standard_error_fmt(zhp->zfs_hdl, errno, |
3814 | dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), | |
3815 | zhp->zfs_name)); | |
3816 | } | |
3817 | ||
3818 | remove_mountpoint(zhp); | |
3819 | ||
3820 | return (0); | |
3821 | } | |
3822 | ||
3823 | struct destroydata { | |
330d06f9 MA |
3824 | nvlist_t *nvl; |
3825 | const char *snapname; | |
34dc7c2f BB |
3826 | }; |
3827 | ||
3828 | static int | |
428870ff | 3829 | zfs_check_snap_cb(zfs_handle_t *zhp, void *arg) |
34dc7c2f BB |
3830 | { |
3831 | struct destroydata *dd = arg; | |
eca7b760 | 3832 | char name[ZFS_MAX_DATASET_NAME_LEN]; |
428870ff | 3833 | int rv = 0; |
34dc7c2f | 3834 | |
682ce104 TH |
3835 | if (snprintf(name, sizeof (name), "%s@%s", zhp->zfs_name, |
3836 | dd->snapname) >= sizeof (name)) | |
3837 | return (EINVAL); | |
34dc7c2f | 3838 | |
95fd54a1 | 3839 | if (lzc_exists(name)) |
330d06f9 | 3840 | verify(nvlist_add_boolean(dd->nvl, name) == 0); |
34dc7c2f | 3841 | |
330d06f9 MA |
3842 | rv = zfs_iter_filesystems(zhp, zfs_check_snap_cb, dd); |
3843 | zfs_close(zhp); | |
34dc7c2f BB |
3844 | return (rv); |
3845 | } | |
3846 | ||
3847 | /* | |
3848 | * Destroys all snapshots with the given name in zhp & descendants. | |
3849 | */ | |
3850 | int | |
45d1cae3 | 3851 | zfs_destroy_snaps(zfs_handle_t *zhp, char *snapname, boolean_t defer) |
34dc7c2f | 3852 | { |
34dc7c2f BB |
3853 | int ret; |
3854 | struct destroydata dd = { 0 }; | |
3855 | ||
3856 | dd.snapname = snapname; | |
330d06f9 MA |
3857 | verify(nvlist_alloc(&dd.nvl, NV_UNIQUE_NAME, 0) == 0); |
3858 | (void) zfs_check_snap_cb(zfs_handle_dup(zhp), &dd); | |
34dc7c2f | 3859 | |
95fd54a1 | 3860 | if (nvlist_empty(dd.nvl)) { |
330d06f9 | 3861 | ret = zfs_standard_error_fmt(zhp->zfs_hdl, ENOENT, |
34dc7c2f | 3862 | dgettext(TEXT_DOMAIN, "cannot destroy '%s@%s'"), |
330d06f9 MA |
3863 | zhp->zfs_name, snapname); |
3864 | } else { | |
13fe0198 | 3865 | ret = zfs_destroy_snaps_nvl(zhp->zfs_hdl, dd.nvl, defer); |
34dc7c2f | 3866 | } |
330d06f9 MA |
3867 | nvlist_free(dd.nvl); |
3868 | return (ret); | |
3869 | } | |
3870 | ||
3871 | /* | |
13fe0198 | 3872 | * Destroys all the snapshots named in the nvlist. |
330d06f9 MA |
3873 | */ |
3874 | int | |
13fe0198 | 3875 | zfs_destroy_snaps_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, boolean_t defer) |
330d06f9 MA |
3876 | { |
3877 | int ret; | |
b3744ae6 | 3878 | nvlist_t *errlist = NULL; |
13fe0198 | 3879 | nvpair_t *pair; |
34dc7c2f | 3880 | |
6f1ffb06 | 3881 | ret = lzc_destroy_snaps(snaps, defer, &errlist); |
34dc7c2f | 3882 | |
b3744ae6 CW |
3883 | if (ret == 0) { |
3884 | nvlist_free(errlist); | |
13fe0198 | 3885 | return (0); |
b3744ae6 | 3886 | } |
34dc7c2f | 3887 | |
95fd54a1 | 3888 | if (nvlist_empty(errlist)) { |
13fe0198 MA |
3889 | char errbuf[1024]; |
3890 | (void) snprintf(errbuf, sizeof (errbuf), | |
3891 | dgettext(TEXT_DOMAIN, "cannot destroy snapshots")); | |
3892 | ||
3893 | ret = zfs_standard_error(hdl, ret, errbuf); | |
3894 | } | |
3895 | for (pair = nvlist_next_nvpair(errlist, NULL); | |
3896 | pair != NULL; pair = nvlist_next_nvpair(errlist, pair)) { | |
3897 | char errbuf[1024]; | |
3898 | (void) snprintf(errbuf, sizeof (errbuf), | |
3899 | dgettext(TEXT_DOMAIN, "cannot destroy snapshot %s"), | |
3900 | nvpair_name(pair)); | |
3901 | ||
3902 | switch (fnvpair_value_int32(pair)) { | |
3903 | case EEXIST: | |
3904 | zfs_error_aux(hdl, | |
3905 | dgettext(TEXT_DOMAIN, "snapshot is cloned")); | |
3906 | ret = zfs_error(hdl, EZFS_EXISTS, errbuf); | |
3907 | break; | |
3908 | default: | |
3909 | ret = zfs_standard_error(hdl, errno, errbuf); | |
3910 | break; | |
34dc7c2f BB |
3911 | } |
3912 | } | |
3913 | ||
b3744ae6 | 3914 | nvlist_free(errlist); |
6f1ffb06 | 3915 | return (ret); |
34dc7c2f BB |
3916 | } |
3917 | ||
3918 | /* | |
3919 | * Clones the given dataset. The target must be of the same type as the source. | |
3920 | */ | |
3921 | int | |
3922 | zfs_clone(zfs_handle_t *zhp, const char *target, nvlist_t *props) | |
3923 | { | |
eca7b760 | 3924 | char parent[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f BB |
3925 | int ret; |
3926 | char errbuf[1024]; | |
3927 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
34dc7c2f BB |
3928 | uint64_t zoned; |
3929 | ||
3930 | assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); | |
3931 | ||
3932 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3933 | "cannot create '%s'"), target); | |
3934 | ||
330d06f9 | 3935 | /* validate the target/clone name */ |
34dc7c2f BB |
3936 | if (!zfs_validate_name(hdl, target, ZFS_TYPE_FILESYSTEM, B_TRUE)) |
3937 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
3938 | ||
3939 | /* validate parents exist */ | |
3940 | if (check_parents(hdl, target, &zoned, B_FALSE, NULL) != 0) | |
3941 | return (-1); | |
3942 | ||
3943 | (void) parent_name(target, parent, sizeof (parent)); | |
3944 | ||
3945 | /* do the clone */ | |
34dc7c2f BB |
3946 | |
3947 | if (props) { | |
6f1ffb06 | 3948 | zfs_type_t type; |
d22f3a82 | 3949 | |
6f1ffb06 MA |
3950 | if (ZFS_IS_VOLUME(zhp)) { |
3951 | type = ZFS_TYPE_VOLUME; | |
3952 | } else { | |
3953 | type = ZFS_TYPE_FILESYSTEM; | |
3954 | } | |
b128c09f | 3955 | if ((props = zfs_valid_proplist(hdl, type, props, zoned, |
b5256303 | 3956 | zhp, zhp->zpool_hdl, B_TRUE, errbuf)) == NULL) |
34dc7c2f | 3957 | return (-1); |
d22f3a82 MG |
3958 | if (zfs_fix_auto_resv(zhp, props) == -1) { |
3959 | nvlist_free(props); | |
3960 | return (-1); | |
3961 | } | |
34dc7c2f BB |
3962 | } |
3963 | ||
b5256303 TC |
3964 | if (zfs_crypto_clone_check(hdl, zhp, parent, props) != 0) { |
3965 | nvlist_free(props); | |
3966 | return (zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf)); | |
3967 | } | |
3968 | ||
6f1ffb06 MA |
3969 | ret = lzc_clone(target, zhp->zfs_name, props); |
3970 | nvlist_free(props); | |
34dc7c2f BB |
3971 | |
3972 | if (ret != 0) { | |
3973 | switch (errno) { | |
3974 | ||
3975 | case ENOENT: | |
3976 | /* | |
3977 | * The parent doesn't exist. We should have caught this | |
3978 | * above, but there may a race condition that has since | |
3979 | * destroyed the parent. | |
3980 | * | |
3981 | * At this point, we don't know whether it's the source | |
3982 | * that doesn't exist anymore, or whether the target | |
3983 | * dataset doesn't exist. | |
3984 | */ | |
3985 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
3986 | "no such parent '%s'"), parent); | |
3987 | return (zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf)); | |
3988 | ||
3989 | case EXDEV: | |
3990 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
3991 | "source and target pools differ")); | |
3992 | return (zfs_error(zhp->zfs_hdl, EZFS_CROSSTARGET, | |
3993 | errbuf)); | |
3994 | ||
3995 | default: | |
3996 | return (zfs_standard_error(zhp->zfs_hdl, errno, | |
3997 | errbuf)); | |
3998 | } | |
34dc7c2f BB |
3999 | } |
4000 | ||
4001 | return (ret); | |
4002 | } | |
4003 | ||
34dc7c2f BB |
4004 | /* |
4005 | * Promotes the given clone fs to be the clone parent. | |
4006 | */ | |
4007 | int | |
4008 | zfs_promote(zfs_handle_t *zhp) | |
4009 | { | |
4010 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
d12f91fd | 4011 | char snapname[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f | 4012 | int ret; |
34dc7c2f BB |
4013 | char errbuf[1024]; |
4014 | ||
4015 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
4016 | "cannot promote '%s'"), zhp->zfs_name); | |
4017 | ||
4018 | if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { | |
4019 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4020 | "snapshots can not be promoted")); | |
4021 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
4022 | } | |
4023 | ||
d12f91fd | 4024 | if (zhp->zfs_dmustats.dds_origin[0] == '\0') { |
34dc7c2f BB |
4025 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4026 | "not a cloned filesystem")); | |
4027 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
4028 | } | |
34dc7c2f | 4029 | |
650258d7 | 4030 | if (!zfs_validate_name(hdl, zhp->zfs_name, zhp->zfs_type, B_TRUE)) |
4031 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
4032 | ||
d12f91fd | 4033 | ret = lzc_promote(zhp->zfs_name, snapname, sizeof (snapname)); |
34dc7c2f BB |
4034 | |
4035 | if (ret != 0) { | |
d12f91fd | 4036 | switch (ret) { |
53864800 TC |
4037 | case EACCES: |
4038 | /* | |
4039 | * Promoting encrypted dataset outside its | |
4040 | * encryption root. | |
4041 | */ | |
4042 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4043 | "cannot promote dataset outside its " | |
4044 | "encryption root")); | |
4045 | return (zfs_error(hdl, EZFS_EXISTS, errbuf)); | |
4046 | ||
34dc7c2f | 4047 | case EEXIST: |
ba6a2402 | 4048 | /* There is a conflicting snapshot name. */ |
34dc7c2f | 4049 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
428870ff | 4050 | "conflicting snapshot '%s' from parent '%s'"), |
d12f91fd | 4051 | snapname, zhp->zfs_dmustats.dds_origin); |
34dc7c2f BB |
4052 | return (zfs_error(hdl, EZFS_EXISTS, errbuf)); |
4053 | ||
4054 | default: | |
d12f91fd | 4055 | return (zfs_standard_error(hdl, ret, errbuf)); |
34dc7c2f | 4056 | } |
d603ed6c | 4057 | } |
34dc7c2f BB |
4058 | return (ret); |
4059 | } | |
4060 | ||
6f1ffb06 MA |
4061 | typedef struct snapdata { |
4062 | nvlist_t *sd_nvl; | |
4063 | const char *sd_snapname; | |
4064 | } snapdata_t; | |
4065 | ||
4066 | static int | |
4067 | zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) | |
4068 | { | |
4069 | snapdata_t *sd = arg; | |
eca7b760 | 4070 | char name[ZFS_MAX_DATASET_NAME_LEN]; |
6f1ffb06 MA |
4071 | int rv = 0; |
4072 | ||
96c2e961 | 4073 | if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) == 0) { |
682ce104 TH |
4074 | if (snprintf(name, sizeof (name), "%s@%s", zfs_get_name(zhp), |
4075 | sd->sd_snapname) >= sizeof (name)) | |
4076 | return (EINVAL); | |
6f1ffb06 | 4077 | |
96c2e961 | 4078 | fnvlist_add_boolean(sd->sd_nvl, name); |
6f1ffb06 | 4079 | |
96c2e961 KW |
4080 | rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); |
4081 | } | |
6f1ffb06 | 4082 | zfs_close(zhp); |
96c2e961 | 4083 | |
6f1ffb06 MA |
4084 | return (rv); |
4085 | } | |
4086 | ||
34dc7c2f | 4087 | /* |
6f1ffb06 MA |
4088 | * Creates snapshots. The keys in the snaps nvlist are the snapshots to be |
4089 | * created. | |
34dc7c2f BB |
4090 | */ |
4091 | int | |
6f1ffb06 | 4092 | zfs_snapshot_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, nvlist_t *props) |
34dc7c2f | 4093 | { |
34dc7c2f BB |
4094 | int ret; |
4095 | char errbuf[1024]; | |
6f1ffb06 MA |
4096 | nvpair_t *elem; |
4097 | nvlist_t *errors; | |
9d016804 | 4098 | zpool_handle_t *zpool_hdl; |
4099 | char pool[ZFS_MAX_DATASET_NAME_LEN]; | |
34dc7c2f BB |
4100 | |
4101 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
6f1ffb06 | 4102 | "cannot create snapshots ")); |
34dc7c2f | 4103 | |
6f1ffb06 MA |
4104 | elem = NULL; |
4105 | while ((elem = nvlist_next_nvpair(snaps, elem)) != NULL) { | |
4106 | const char *snapname = nvpair_name(elem); | |
b128c09f | 4107 | |
6f1ffb06 MA |
4108 | /* validate the target name */ |
4109 | if (!zfs_validate_name(hdl, snapname, ZFS_TYPE_SNAPSHOT, | |
4110 | B_TRUE)) { | |
4111 | (void) snprintf(errbuf, sizeof (errbuf), | |
4112 | dgettext(TEXT_DOMAIN, | |
4113 | "cannot create snapshot '%s'"), snapname); | |
4114 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
b128c09f | 4115 | } |
b128c09f BB |
4116 | } |
4117 | ||
82f6f6e6 JS |
4118 | /* |
4119 | * get pool handle for prop validation. assumes all snaps are in the | |
4120 | * same pool, as does lzc_snapshot (below). | |
4121 | */ | |
82f6f6e6 JS |
4122 | elem = nvlist_next_nvpair(snaps, NULL); |
4123 | (void) strlcpy(pool, nvpair_name(elem), sizeof (pool)); | |
4124 | pool[strcspn(pool, "/@")] = '\0'; | |
9d016804 | 4125 | zpool_hdl = zpool_open(hdl, pool); |
4126 | if (zpool_hdl == NULL) | |
4127 | return (-1); | |
82f6f6e6 | 4128 | |
6f1ffb06 MA |
4129 | if (props != NULL && |
4130 | (props = zfs_valid_proplist(hdl, ZFS_TYPE_SNAPSHOT, | |
b5256303 | 4131 | props, B_FALSE, NULL, zpool_hdl, B_FALSE, errbuf)) == NULL) { |
82f6f6e6 | 4132 | zpool_close(zpool_hdl); |
34dc7c2f BB |
4133 | return (-1); |
4134 | } | |
82f6f6e6 | 4135 | zpool_close(zpool_hdl); |
34dc7c2f | 4136 | |
6f1ffb06 | 4137 | ret = lzc_snapshot(snaps, props, &errors); |
34dc7c2f | 4138 | |
6f1ffb06 MA |
4139 | if (ret != 0) { |
4140 | boolean_t printed = B_FALSE; | |
4141 | for (elem = nvlist_next_nvpair(errors, NULL); | |
4142 | elem != NULL; | |
4143 | elem = nvlist_next_nvpair(errors, elem)) { | |
4144 | (void) snprintf(errbuf, sizeof (errbuf), | |
4145 | dgettext(TEXT_DOMAIN, | |
4146 | "cannot create snapshot '%s'"), nvpair_name(elem)); | |
4147 | (void) zfs_standard_error(hdl, | |
4148 | fnvpair_value_int32(elem), errbuf); | |
4149 | printed = B_TRUE; | |
4150 | } | |
4151 | if (!printed) { | |
4152 | switch (ret) { | |
4153 | case EXDEV: | |
4154 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4155 | "multiple snapshots of same " | |
4156 | "fs not allowed")); | |
4157 | (void) zfs_error(hdl, EZFS_EXISTS, errbuf); | |
b128c09f | 4158 | |
6f1ffb06 MA |
4159 | break; |
4160 | default: | |
4161 | (void) zfs_standard_error(hdl, ret, errbuf); | |
4162 | } | |
4163 | } | |
428870ff | 4164 | } |
34dc7c2f | 4165 | |
6f1ffb06 MA |
4166 | nvlist_free(props); |
4167 | nvlist_free(errors); | |
4168 | return (ret); | |
4169 | } | |
d603ed6c | 4170 | |
6f1ffb06 MA |
4171 | int |
4172 | zfs_snapshot(libzfs_handle_t *hdl, const char *path, boolean_t recursive, | |
4173 | nvlist_t *props) | |
4174 | { | |
4175 | int ret; | |
4176 | snapdata_t sd = { 0 }; | |
eca7b760 | 4177 | char fsname[ZFS_MAX_DATASET_NAME_LEN]; |
6f1ffb06 MA |
4178 | char *cp; |
4179 | zfs_handle_t *zhp; | |
4180 | char errbuf[1024]; | |
4181 | ||
4182 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
4183 | "cannot snapshot %s"), path); | |
4184 | ||
4185 | if (!zfs_validate_name(hdl, path, ZFS_TYPE_SNAPSHOT, B_TRUE)) | |
4186 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
ba6a2402 | 4187 | |
6f1ffb06 MA |
4188 | (void) strlcpy(fsname, path, sizeof (fsname)); |
4189 | cp = strchr(fsname, '@'); | |
4190 | *cp = '\0'; | |
4191 | sd.sd_snapname = cp + 1; | |
34dc7c2f | 4192 | |
6f1ffb06 MA |
4193 | if ((zhp = zfs_open(hdl, fsname, ZFS_TYPE_FILESYSTEM | |
4194 | ZFS_TYPE_VOLUME)) == NULL) { | |
4195 | return (-1); | |
4196 | } | |
4197 | ||
4198 | verify(nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) == 0); | |
4199 | if (recursive) { | |
4200 | (void) zfs_snapshot_cb(zfs_handle_dup(zhp), &sd); | |
4201 | } else { | |
4202 | fnvlist_add_boolean(sd.sd_nvl, path); | |
4203 | } | |
4204 | ||
4205 | ret = zfs_snapshot_nvl(hdl, sd.sd_nvl, props); | |
4206 | nvlist_free(sd.sd_nvl); | |
4207 | zfs_close(zhp); | |
34dc7c2f BB |
4208 | return (ret); |
4209 | } | |
4210 | ||
4211 | /* | |
4212 | * Destroy any more recent snapshots. We invoke this callback on any dependents | |
4213 | * of the snapshot first. If the 'cb_dependent' member is non-zero, then this | |
4214 | * is a dependent and we should just destroy it without checking the transaction | |
4215 | * group. | |
4216 | */ | |
4217 | typedef struct rollback_data { | |
4218 | const char *cb_target; /* the snapshot */ | |
4219 | uint64_t cb_create; /* creation time reference */ | |
4220 | boolean_t cb_error; | |
34dc7c2f BB |
4221 | boolean_t cb_force; |
4222 | } rollback_data_t; | |
4223 | ||
4224 | static int | |
da536844 | 4225 | rollback_destroy_dependent(zfs_handle_t *zhp, void *data) |
34dc7c2f BB |
4226 | { |
4227 | rollback_data_t *cbp = data; | |
da536844 MA |
4228 | prop_changelist_t *clp; |
4229 | ||
4230 | /* We must destroy this clone; first unmount it */ | |
4231 | clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, | |
4232 | cbp->cb_force ? MS_FORCE: 0); | |
4233 | if (clp == NULL || changelist_prefix(clp) != 0) { | |
4234 | cbp->cb_error = B_TRUE; | |
4235 | zfs_close(zhp); | |
4236 | return (0); | |
4237 | } | |
4238 | if (zfs_destroy(zhp, B_FALSE) != 0) | |
4239 | cbp->cb_error = B_TRUE; | |
4240 | else | |
4241 | changelist_remove(clp, zhp->zfs_name); | |
4242 | (void) changelist_postfix(clp); | |
4243 | changelist_free(clp); | |
34dc7c2f | 4244 | |
da536844 MA |
4245 | zfs_close(zhp); |
4246 | return (0); | |
4247 | } | |
34dc7c2f | 4248 | |
da536844 MA |
4249 | static int |
4250 | rollback_destroy(zfs_handle_t *zhp, void *data) | |
4251 | { | |
4252 | rollback_data_t *cbp = data; | |
34dc7c2f | 4253 | |
da536844 MA |
4254 | if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { |
4255 | cbp->cb_error |= zfs_iter_dependents(zhp, B_FALSE, | |
4256 | rollback_destroy_dependent, cbp); | |
34dc7c2f | 4257 | |
da536844 | 4258 | cbp->cb_error |= zfs_destroy(zhp, B_FALSE); |
34dc7c2f BB |
4259 | } |
4260 | ||
4261 | zfs_close(zhp); | |
4262 | return (0); | |
4263 | } | |
4264 | ||
4265 | /* | |
4266 | * Given a dataset, rollback to a specific snapshot, discarding any | |
4267 | * data changes since then and making it the active dataset. | |
4268 | * | |
da536844 MA |
4269 | * Any snapshots and bookmarks more recent than the target are |
4270 | * destroyed, along with their dependents (i.e. clones). | |
34dc7c2f BB |
4271 | */ |
4272 | int | |
4273 | zfs_rollback(zfs_handle_t *zhp, zfs_handle_t *snap, boolean_t force) | |
4274 | { | |
4275 | rollback_data_t cb = { 0 }; | |
4276 | int err; | |
34dc7c2f | 4277 | boolean_t restore_resv = 0; |
d4ed6673 BB |
4278 | uint64_t old_volsize = 0, new_volsize; |
4279 | zfs_prop_t resv_prop = { 0 }; | |
4c0883fb | 4280 | uint64_t min_txg = 0; |
34dc7c2f BB |
4281 | |
4282 | assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM || | |
4283 | zhp->zfs_type == ZFS_TYPE_VOLUME); | |
4284 | ||
4285 | /* | |
04434775 | 4286 | * Destroy all recent snapshots and their dependents. |
34dc7c2f BB |
4287 | */ |
4288 | cb.cb_force = force; | |
4289 | cb.cb_target = snap->zfs_name; | |
4290 | cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); | |
4c0883fb AP |
4291 | |
4292 | if (cb.cb_create > 0) | |
4293 | min_txg = cb.cb_create; | |
4294 | ||
4295 | (void) zfs_iter_snapshots(zhp, B_FALSE, rollback_destroy, &cb, | |
4296 | min_txg, 0); | |
4297 | ||
da536844 | 4298 | (void) zfs_iter_bookmarks(zhp, rollback_destroy, &cb); |
34dc7c2f BB |
4299 | |
4300 | if (cb.cb_error) | |
4301 | return (-1); | |
4302 | ||
4303 | /* | |
4304 | * Now that we have verified that the snapshot is the latest, | |
4305 | * rollback to the given snapshot. | |
4306 | */ | |
4307 | ||
4308 | if (zhp->zfs_type == ZFS_TYPE_VOLUME) { | |
34dc7c2f BB |
4309 | if (zfs_which_resv_prop(zhp, &resv_prop) < 0) |
4310 | return (-1); | |
4311 | old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); | |
4312 | restore_resv = | |
4313 | (old_volsize == zfs_prop_get_int(zhp, resv_prop)); | |
4314 | } | |
4315 | ||
34dc7c2f | 4316 | /* |
8ca78ab0 AG |
4317 | * Pass both the filesystem and the wanted snapshot names, |
4318 | * we would get an error back if the snapshot is destroyed or | |
4319 | * a new snapshot is created before this request is processed. | |
34dc7c2f | 4320 | */ |
8ca78ab0 | 4321 | err = lzc_rollback_to(zhp->zfs_name, snap->zfs_name); |
13342832 AG |
4322 | if (err != 0) { |
4323 | char errbuf[1024]; | |
4324 | ||
4325 | (void) snprintf(errbuf, sizeof (errbuf), | |
34dc7c2f BB |
4326 | dgettext(TEXT_DOMAIN, "cannot rollback '%s'"), |
4327 | zhp->zfs_name); | |
13342832 AG |
4328 | switch (err) { |
4329 | case EEXIST: | |
4330 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
4331 | "there is a snapshot or bookmark more recent " | |
4332 | "than '%s'"), snap->zfs_name); | |
4333 | (void) zfs_error(zhp->zfs_hdl, EZFS_EXISTS, errbuf); | |
4334 | break; | |
4335 | case ESRCH: | |
4336 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
4337 | "'%s' is not found among snapshots of '%s'"), | |
4338 | snap->zfs_name, zhp->zfs_name); | |
4339 | (void) zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf); | |
4340 | break; | |
4341 | case EINVAL: | |
4342 | (void) zfs_error(zhp->zfs_hdl, EZFS_BADTYPE, errbuf); | |
4343 | break; | |
4344 | default: | |
4345 | (void) zfs_standard_error(zhp->zfs_hdl, err, errbuf); | |
4346 | } | |
34dc7c2f BB |
4347 | return (err); |
4348 | } | |
4349 | ||
4350 | /* | |
4351 | * For volumes, if the pre-rollback volsize matched the pre- | |
4352 | * rollback reservation and the volsize has changed then set | |
4353 | * the reservation property to the post-rollback volsize. | |
4354 | * Make a new handle since the rollback closed the dataset. | |
4355 | */ | |
4356 | if ((zhp->zfs_type == ZFS_TYPE_VOLUME) && | |
4357 | (zhp = make_dataset_handle(zhp->zfs_hdl, zhp->zfs_name))) { | |
34dc7c2f BB |
4358 | if (restore_resv) { |
4359 | new_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); | |
4360 | if (old_volsize != new_volsize) | |
4361 | err = zfs_prop_set_int(zhp, resv_prop, | |
4362 | new_volsize); | |
4363 | } | |
4364 | zfs_close(zhp); | |
4365 | } | |
4366 | return (err); | |
4367 | } | |
4368 | ||
34dc7c2f BB |
4369 | /* |
4370 | * Renames the given dataset. | |
4371 | */ | |
4372 | int | |
7b4e2723 | 4373 | zfs_rename(zfs_handle_t *zhp, const char *target, renameflags_t flags) |
34dc7c2f | 4374 | { |
23d70cde | 4375 | int ret = 0; |
13fe0198 | 4376 | zfs_cmd_t zc = {"\0"}; |
34dc7c2f BB |
4377 | char *delim; |
4378 | prop_changelist_t *cl = NULL; | |
eca7b760 | 4379 | char parent[ZFS_MAX_DATASET_NAME_LEN]; |
7b4e2723 | 4380 | char property[ZFS_MAXPROPLEN]; |
34dc7c2f BB |
4381 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
4382 | char errbuf[1024]; | |
4383 | ||
4384 | /* if we have the same exact name, just return success */ | |
4385 | if (strcmp(zhp->zfs_name, target) == 0) | |
4386 | return (0); | |
4387 | ||
4388 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
4389 | "cannot rename to '%s'"), target); | |
4390 | ||
650258d7 | 4391 | /* make sure source name is valid */ |
4392 | if (!zfs_validate_name(hdl, zhp->zfs_name, zhp->zfs_type, B_TRUE)) | |
4393 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
4394 | ||
34dc7c2f BB |
4395 | /* |
4396 | * Make sure the target name is valid | |
4397 | */ | |
4398 | if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { | |
4399 | if ((strchr(target, '@') == NULL) || | |
4400 | *target == '@') { | |
4401 | /* | |
4402 | * Snapshot target name is abbreviated, | |
4403 | * reconstruct full dataset name | |
4404 | */ | |
4405 | (void) strlcpy(parent, zhp->zfs_name, | |
4406 | sizeof (parent)); | |
4407 | delim = strchr(parent, '@'); | |
4408 | if (strchr(target, '@') == NULL) | |
4409 | *(++delim) = '\0'; | |
4410 | else | |
4411 | *delim = '\0'; | |
4412 | (void) strlcat(parent, target, sizeof (parent)); | |
4413 | target = parent; | |
4414 | } else { | |
4415 | /* | |
4416 | * Make sure we're renaming within the same dataset. | |
4417 | */ | |
4418 | delim = strchr(target, '@'); | |
4419 | if (strncmp(zhp->zfs_name, target, delim - target) | |
4420 | != 0 || zhp->zfs_name[delim - target] != '@') { | |
4421 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4422 | "snapshots must be part of same " | |
4423 | "dataset")); | |
4424 | return (zfs_error(hdl, EZFS_CROSSTARGET, | |
4425 | errbuf)); | |
4426 | } | |
4427 | } | |
a7ed98d8 | 4428 | |
34dc7c2f BB |
4429 | if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) |
4430 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
4431 | } else { | |
7b4e2723 | 4432 | if (flags.recursive) { |
34dc7c2f BB |
4433 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4434 | "recursive rename must be a snapshot")); | |
4435 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
4436 | } | |
4437 | ||
4438 | if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) | |
4439 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
34dc7c2f BB |
4440 | |
4441 | /* validate parents */ | |
428870ff | 4442 | if (check_parents(hdl, target, NULL, B_FALSE, NULL) != 0) |
34dc7c2f BB |
4443 | return (-1); |
4444 | ||
34dc7c2f BB |
4445 | /* make sure we're in the same pool */ |
4446 | verify((delim = strchr(target, '/')) != NULL); | |
4447 | if (strncmp(zhp->zfs_name, target, delim - target) != 0 || | |
4448 | zhp->zfs_name[delim - target] != '/') { | |
4449 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4450 | "datasets must be within same pool")); | |
4451 | return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); | |
4452 | } | |
4453 | ||
4454 | /* new name cannot be a child of the current dataset name */ | |
428870ff | 4455 | if (is_descendant(zhp->zfs_name, target)) { |
34dc7c2f | 4456 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
428870ff | 4457 | "New dataset name cannot be a descendant of " |
34dc7c2f BB |
4458 | "current dataset name")); |
4459 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
4460 | } | |
4461 | } | |
4462 | ||
4463 | (void) snprintf(errbuf, sizeof (errbuf), | |
4464 | dgettext(TEXT_DOMAIN, "cannot rename '%s'"), zhp->zfs_name); | |
4465 | ||
4466 | if (getzoneid() == GLOBAL_ZONEID && | |
4467 | zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { | |
4468 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4469 | "dataset is used in a non-global zone")); | |
4470 | return (zfs_error(hdl, EZFS_ZONED, errbuf)); | |
4471 | } | |
4472 | ||
7b4e2723 RM |
4473 | /* |
4474 | * Avoid unmounting file systems with mountpoint property set to | |
4475 | * 'legacy' or 'none' even if -u option is not given. | |
4476 | */ | |
4477 | if (zhp->zfs_type == ZFS_TYPE_FILESYSTEM && | |
4478 | !flags.recursive && !flags.nounmount && | |
4479 | zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, property, | |
4480 | sizeof (property), NULL, NULL, 0, B_FALSE) == 0 && | |
4481 | (strcmp(property, "legacy") == 0 || | |
4482 | strcmp(property, "none") == 0)) { | |
4483 | flags.nounmount = B_TRUE; | |
4484 | } | |
4485 | if (flags.recursive) { | |
5691b86c | 4486 | char *parentname = zfs_strdup(zhp->zfs_hdl, zhp->zfs_name); |
34dc7c2f BB |
4487 | if (parentname == NULL) { |
4488 | ret = -1; | |
4489 | goto error; | |
4490 | } | |
4491 | delim = strchr(parentname, '@'); | |
4492 | *delim = '\0'; | |
7b4e2723 RM |
4493 | zfs_handle_t *zhrp = zfs_open(zhp->zfs_hdl, parentname, |
4494 | ZFS_TYPE_DATASET); | |
5691b86c | 4495 | free(parentname); |
34dc7c2f BB |
4496 | if (zhrp == NULL) { |
4497 | ret = -1; | |
4498 | goto error; | |
4499 | } | |
5691b86c | 4500 | zfs_close(zhrp); |
e3e670d0 | 4501 | } else if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT) { |
50a343d8 | 4502 | if ((cl = changelist_gather(zhp, ZFS_PROP_NAME, |
7b4e2723 | 4503 | flags.nounmount ? CL_GATHER_DONT_UNMOUNT : |
50a343d8 | 4504 | CL_GATHER_ITER_MOUNTED, |
7b4e2723 | 4505 | flags.forceunmount ? MS_FORCE : 0)) == NULL) |
34dc7c2f BB |
4506 | return (-1); |
4507 | ||
4508 | if (changelist_haszonedchild(cl)) { | |
4509 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4510 | "child dataset with inherited mountpoint is used " | |
4511 | "in a non-global zone")); | |
4512 | (void) zfs_error(hdl, EZFS_ZONED, errbuf); | |
d4ed6673 | 4513 | ret = -1; |
34dc7c2f BB |
4514 | goto error; |
4515 | } | |
4516 | ||
4517 | if ((ret = changelist_prefix(cl)) != 0) | |
4518 | goto error; | |
4519 | } | |
4520 | ||
4521 | if (ZFS_IS_VOLUME(zhp)) | |
4522 | zc.zc_objset_type = DMU_OST_ZVOL; | |
4523 | else | |
4524 | zc.zc_objset_type = DMU_OST_ZFS; | |
4525 | ||
4526 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
4527 | (void) strlcpy(zc.zc_value, target, sizeof (zc.zc_value)); | |
4528 | ||
7b4e2723 RM |
4529 | zc.zc_cookie = !!flags.recursive; |
4530 | zc.zc_cookie |= (!!flags.nounmount) << 1; | |
34dc7c2f BB |
4531 | |
4532 | if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_RENAME, &zc)) != 0) { | |
4533 | /* | |
4534 | * if it was recursive, the one that actually failed will | |
4535 | * be in zc.zc_name | |
4536 | */ | |
4537 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
4538 | "cannot rename '%s'"), zc.zc_name); | |
4539 | ||
7b4e2723 | 4540 | if (flags.recursive && errno == EEXIST) { |
34dc7c2f BB |
4541 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4542 | "a child dataset already has a snapshot " | |
4543 | "with the new name")); | |
4544 | (void) zfs_error(hdl, EZFS_EXISTS, errbuf); | |
b5256303 | 4545 | } else if (errno == EACCES) { |
da689887 TC |
4546 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4547 | "cannot move encrypted child outside of " | |
4548 | "its encryption root")); | |
b5256303 | 4549 | (void) zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf); |
34dc7c2f BB |
4550 | } else { |
4551 | (void) zfs_standard_error(zhp->zfs_hdl, errno, errbuf); | |
4552 | } | |
4553 | ||
4554 | /* | |
4555 | * On failure, we still want to remount any filesystems that | |
4556 | * were previously mounted, so we don't alter the system state. | |
4557 | */ | |
e3e670d0 | 4558 | if (cl != NULL) |
34dc7c2f | 4559 | (void) changelist_postfix(cl); |
34dc7c2f | 4560 | } else { |
e3e670d0 | 4561 | if (cl != NULL) { |
34dc7c2f BB |
4562 | changelist_rename(cl, zfs_get_name(zhp), target); |
4563 | ret = changelist_postfix(cl); | |
4564 | } | |
4565 | } | |
4566 | ||
4567 | error: | |
e3e670d0 | 4568 | if (cl != NULL) { |
34dc7c2f BB |
4569 | changelist_free(cl); |
4570 | } | |
4571 | return (ret); | |
4572 | } | |
4573 | ||
6044cf59 JR |
4574 | nvlist_t * |
4575 | zfs_get_all_props(zfs_handle_t *zhp) | |
4576 | { | |
4577 | return (zhp->zfs_props); | |
4578 | } | |
4579 | ||
4580 | nvlist_t * | |
4581 | zfs_get_recvd_props(zfs_handle_t *zhp) | |
4582 | { | |
4583 | if (zhp->zfs_recvd_props == NULL) | |
4584 | if (get_recvd_props_ioctl(zhp) != 0) | |
4585 | return (NULL); | |
4586 | return (zhp->zfs_recvd_props); | |
4587 | } | |
4588 | ||
34dc7c2f | 4589 | nvlist_t * |
d603ed6c | 4590 | zfs_get_user_props(zfs_handle_t *zhp) |
34dc7c2f | 4591 | { |
d603ed6c | 4592 | return (zhp->zfs_user_props); |
34dc7c2f BB |
4593 | } |
4594 | ||
4595 | /* | |
4596 | * This function is used by 'zfs list' to determine the exact set of columns to | |
4597 | * display, and their maximum widths. This does two main things: | |
4598 | * | |
4599 | * - If this is a list of all properties, then expand the list to include | |
4600 | * all native properties, and set a flag so that for each dataset we look | |
4601 | * for new unique user properties and add them to the list. | |
4602 | * | |
4603 | * - For non fixed-width properties, keep track of the maximum width seen | |
428870ff BB |
4604 | * so that we can size the column appropriately. If the user has |
4605 | * requested received property values, we also need to compute the width | |
4606 | * of the RECEIVED column. | |
34dc7c2f BB |
4607 | */ |
4608 | int | |
54d5378f YP |
4609 | zfs_expand_proplist(zfs_handle_t *zhp, zprop_list_t **plp, boolean_t received, |
4610 | boolean_t literal) | |
34dc7c2f BB |
4611 | { |
4612 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
4613 | zprop_list_t *entry; | |
4614 | zprop_list_t **last, **start; | |
4615 | nvlist_t *userprops, *propval; | |
4616 | nvpair_t *elem; | |
4617 | char *strval; | |
4618 | char buf[ZFS_MAXPROPLEN]; | |
4619 | ||
4620 | if (zprop_expand_list(hdl, plp, ZFS_TYPE_DATASET) != 0) | |
4621 | return (-1); | |
4622 | ||
4623 | userprops = zfs_get_user_props(zhp); | |
4624 | ||
4625 | entry = *plp; | |
4626 | if (entry->pl_all && nvlist_next_nvpair(userprops, NULL) != NULL) { | |
4627 | /* | |
4628 | * Go through and add any user properties as necessary. We | |
4629 | * start by incrementing our list pointer to the first | |
4630 | * non-native property. | |
4631 | */ | |
4632 | start = plp; | |
4633 | while (*start != NULL) { | |
4634 | if ((*start)->pl_prop == ZPROP_INVAL) | |
4635 | break; | |
4636 | start = &(*start)->pl_next; | |
4637 | } | |
4638 | ||
4639 | elem = NULL; | |
4640 | while ((elem = nvlist_next_nvpair(userprops, elem)) != NULL) { | |
4641 | /* | |
4642 | * See if we've already found this property in our list. | |
4643 | */ | |
4644 | for (last = start; *last != NULL; | |
4645 | last = &(*last)->pl_next) { | |
4646 | if (strcmp((*last)->pl_user_prop, | |
4647 | nvpair_name(elem)) == 0) | |
4648 | break; | |
4649 | } | |
4650 | ||
4651 | if (*last == NULL) { | |
4652 | if ((entry = zfs_alloc(hdl, | |
4653 | sizeof (zprop_list_t))) == NULL || | |
4654 | ((entry->pl_user_prop = zfs_strdup(hdl, | |
4655 | nvpair_name(elem)))) == NULL) { | |
4656 | free(entry); | |
4657 | return (-1); | |
4658 | } | |
4659 | ||
4660 | entry->pl_prop = ZPROP_INVAL; | |
4661 | entry->pl_width = strlen(nvpair_name(elem)); | |
4662 | entry->pl_all = B_TRUE; | |
4663 | *last = entry; | |
4664 | } | |
4665 | } | |
4666 | } | |
4667 | ||
4668 | /* | |
4669 | * Now go through and check the width of any non-fixed columns | |
4670 | */ | |
4671 | for (entry = *plp; entry != NULL; entry = entry->pl_next) { | |
54d5378f | 4672 | if (entry->pl_fixed && !literal) |
34dc7c2f BB |
4673 | continue; |
4674 | ||
4675 | if (entry->pl_prop != ZPROP_INVAL) { | |
4676 | if (zfs_prop_get(zhp, entry->pl_prop, | |
54d5378f | 4677 | buf, sizeof (buf), NULL, NULL, 0, literal) == 0) { |
34dc7c2f BB |
4678 | if (strlen(buf) > entry->pl_width) |
4679 | entry->pl_width = strlen(buf); | |
4680 | } | |
428870ff BB |
4681 | if (received && zfs_prop_get_recvd(zhp, |
4682 | zfs_prop_to_name(entry->pl_prop), | |
54d5378f | 4683 | buf, sizeof (buf), literal) == 0) |
428870ff BB |
4684 | if (strlen(buf) > entry->pl_recvd_width) |
4685 | entry->pl_recvd_width = strlen(buf); | |
4686 | } else { | |
4687 | if (nvlist_lookup_nvlist(userprops, entry->pl_user_prop, | |
4688 | &propval) == 0) { | |
4689 | verify(nvlist_lookup_string(propval, | |
4690 | ZPROP_VALUE, &strval) == 0); | |
4691 | if (strlen(strval) > entry->pl_width) | |
4692 | entry->pl_width = strlen(strval); | |
4693 | } | |
4694 | if (received && zfs_prop_get_recvd(zhp, | |
4695 | entry->pl_user_prop, | |
54d5378f | 4696 | buf, sizeof (buf), literal) == 0) |
428870ff BB |
4697 | if (strlen(buf) > entry->pl_recvd_width) |
4698 | entry->pl_recvd_width = strlen(buf); | |
34dc7c2f BB |
4699 | } |
4700 | } | |
4701 | ||
4702 | return (0); | |
4703 | } | |
4704 | ||
9babb374 BB |
4705 | void |
4706 | zfs_prune_proplist(zfs_handle_t *zhp, uint8_t *props) | |
4707 | { | |
4708 | nvpair_t *curr; | |
23de906c | 4709 | nvpair_t *next; |
9babb374 BB |
4710 | |
4711 | /* | |
4712 | * Keep a reference to the props-table against which we prune the | |
4713 | * properties. | |
4714 | */ | |
4715 | zhp->zfs_props_table = props; | |
4716 | ||
4717 | curr = nvlist_next_nvpair(zhp->zfs_props, NULL); | |
4718 | ||
4719 | while (curr) { | |
4720 | zfs_prop_t zfs_prop = zfs_name_to_prop(nvpair_name(curr)); | |
23de906c | 4721 | next = nvlist_next_nvpair(zhp->zfs_props, curr); |
9babb374 BB |
4722 | |
4723 | /* | |
428870ff BB |
4724 | * User properties will result in ZPROP_INVAL, and since we |
4725 | * only know how to prune standard ZFS properties, we always | |
4726 | * leave these in the list. This can also happen if we | |
4727 | * encounter an unknown DSL property (when running older | |
4728 | * software, for example). | |
9babb374 BB |
4729 | */ |
4730 | if (zfs_prop != ZPROP_INVAL && props[zfs_prop] == B_FALSE) | |
4731 | (void) nvlist_remove(zhp->zfs_props, | |
4732 | nvpair_name(curr), nvpair_type(curr)); | |
4733 | curr = next; | |
4734 | } | |
4735 | } | |
4736 | ||
4737 | static int | |
4738 | zfs_smb_acl_mgmt(libzfs_handle_t *hdl, char *dataset, char *path, | |
4739 | zfs_smb_acl_op_t cmd, char *resource1, char *resource2) | |
4740 | { | |
13fe0198 | 4741 | zfs_cmd_t zc = {"\0"}; |
9babb374 BB |
4742 | nvlist_t *nvlist = NULL; |
4743 | int error; | |
4744 | ||
4745 | (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); | |
4746 | (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); | |
4747 | zc.zc_cookie = (uint64_t)cmd; | |
4748 | ||
4749 | if (cmd == ZFS_SMB_ACL_RENAME) { | |
4750 | if (nvlist_alloc(&nvlist, NV_UNIQUE_NAME, 0) != 0) { | |
4751 | (void) no_memory(hdl); | |
23de906c | 4752 | return (0); |
9babb374 BB |
4753 | } |
4754 | } | |
4755 | ||
4756 | switch (cmd) { | |
4757 | case ZFS_SMB_ACL_ADD: | |
4758 | case ZFS_SMB_ACL_REMOVE: | |
4759 | (void) strlcpy(zc.zc_string, resource1, sizeof (zc.zc_string)); | |
4760 | break; | |
4761 | case ZFS_SMB_ACL_RENAME: | |
4762 | if (nvlist_add_string(nvlist, ZFS_SMB_ACL_SRC, | |
4763 | resource1) != 0) { | |
4764 | (void) no_memory(hdl); | |
4765 | return (-1); | |
4766 | } | |
4767 | if (nvlist_add_string(nvlist, ZFS_SMB_ACL_TARGET, | |
4768 | resource2) != 0) { | |
4769 | (void) no_memory(hdl); | |
4770 | return (-1); | |
4771 | } | |
4772 | if (zcmd_write_src_nvlist(hdl, &zc, nvlist) != 0) { | |
4773 | nvlist_free(nvlist); | |
4774 | return (-1); | |
4775 | } | |
4776 | break; | |
4777 | case ZFS_SMB_ACL_PURGE: | |
4778 | break; | |
4779 | default: | |
4780 | return (-1); | |
4781 | } | |
4782 | error = ioctl(hdl->libzfs_fd, ZFS_IOC_SMB_ACL, &zc); | |
8a5fc748 | 4783 | nvlist_free(nvlist); |
9babb374 BB |
4784 | return (error); |
4785 | } | |
4786 | ||
4787 | int | |
4788 | zfs_smb_acl_add(libzfs_handle_t *hdl, char *dataset, | |
4789 | char *path, char *resource) | |
4790 | { | |
4791 | return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_ADD, | |
4792 | resource, NULL)); | |
4793 | } | |
4794 | ||
4795 | int | |
4796 | zfs_smb_acl_remove(libzfs_handle_t *hdl, char *dataset, | |
4797 | char *path, char *resource) | |
4798 | { | |
4799 | return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_REMOVE, | |
4800 | resource, NULL)); | |
4801 | } | |
4802 | ||
4803 | int | |
4804 | zfs_smb_acl_purge(libzfs_handle_t *hdl, char *dataset, char *path) | |
4805 | { | |
4806 | return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_PURGE, | |
4807 | NULL, NULL)); | |
4808 | } | |
4809 | ||
4810 | int | |
4811 | zfs_smb_acl_rename(libzfs_handle_t *hdl, char *dataset, char *path, | |
4812 | char *oldname, char *newname) | |
4813 | { | |
4814 | return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_RENAME, | |
4815 | oldname, newname)); | |
4816 | } | |
4817 | ||
4818 | int | |
4819 | zfs_userspace(zfs_handle_t *zhp, zfs_userquota_prop_t type, | |
4820 | zfs_userspace_cb_t func, void *arg) | |
4821 | { | |
13fe0198 | 4822 | zfs_cmd_t zc = {"\0"}; |
9babb374 | 4823 | zfs_useracct_t buf[100]; |
105afebb YP |
4824 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
4825 | int ret; | |
9babb374 | 4826 | |
330d06f9 | 4827 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); |
9babb374 BB |
4828 | |
4829 | zc.zc_objset_type = type; | |
4830 | zc.zc_nvlist_dst = (uintptr_t)buf; | |
4831 | ||
105afebb | 4832 | for (;;) { |
9babb374 BB |
4833 | zfs_useracct_t *zua = buf; |
4834 | ||
4835 | zc.zc_nvlist_dst_size = sizeof (buf); | |
105afebb | 4836 | if (zfs_ioctl(hdl, ZFS_IOC_USERSPACE_MANY, &zc) != 0) { |
eca7b760 | 4837 | char errbuf[1024]; |
105afebb | 4838 | |
1de321e6 JX |
4839 | if ((errno == ENOTSUP && |
4840 | (type == ZFS_PROP_USEROBJUSED || | |
4841 | type == ZFS_PROP_GROUPOBJUSED || | |
4842 | type == ZFS_PROP_USEROBJQUOTA || | |
9c5167d1 NF |
4843 | type == ZFS_PROP_GROUPOBJQUOTA || |
4844 | type == ZFS_PROP_PROJECTOBJUSED || | |
4845 | type == ZFS_PROP_PROJECTOBJQUOTA || | |
4846 | type == ZFS_PROP_PROJECTUSED || | |
4847 | type == ZFS_PROP_PROJECTQUOTA))) | |
1de321e6 JX |
4848 | break; |
4849 | ||
105afebb YP |
4850 | (void) snprintf(errbuf, sizeof (errbuf), |
4851 | dgettext(TEXT_DOMAIN, | |
4852 | "cannot get used/quota for %s"), zc.zc_name); | |
4853 | return (zfs_standard_error_fmt(hdl, errno, errbuf)); | |
4854 | } | |
4855 | if (zc.zc_nvlist_dst_size == 0) | |
9babb374 BB |
4856 | break; |
4857 | ||
4858 | while (zc.zc_nvlist_dst_size > 0) { | |
105afebb YP |
4859 | if ((ret = func(arg, zua->zu_domain, zua->zu_rid, |
4860 | zua->zu_space)) != 0) | |
4861 | return (ret); | |
9babb374 BB |
4862 | zua++; |
4863 | zc.zc_nvlist_dst_size -= sizeof (zfs_useracct_t); | |
4864 | } | |
4865 | } | |
4866 | ||
105afebb | 4867 | return (0); |
9babb374 | 4868 | } |
45d1cae3 | 4869 | |
13fe0198 MA |
4870 | struct holdarg { |
4871 | nvlist_t *nvl; | |
4872 | const char *snapname; | |
4873 | const char *tag; | |
4874 | boolean_t recursive; | |
1a077756 | 4875 | int error; |
13fe0198 MA |
4876 | }; |
4877 | ||
4878 | static int | |
4879 | zfs_hold_one(zfs_handle_t *zhp, void *arg) | |
4880 | { | |
4881 | struct holdarg *ha = arg; | |
eca7b760 | 4882 | char name[ZFS_MAX_DATASET_NAME_LEN]; |
13fe0198 MA |
4883 | int rv = 0; |
4884 | ||
682ce104 TH |
4885 | if (snprintf(name, sizeof (name), "%s@%s", zhp->zfs_name, |
4886 | ha->snapname) >= sizeof (name)) | |
4887 | return (EINVAL); | |
13fe0198 | 4888 | |
95fd54a1 | 4889 | if (lzc_exists(name)) |
13fe0198 | 4890 | fnvlist_add_string(ha->nvl, name, ha->tag); |
13fe0198 MA |
4891 | |
4892 | if (ha->recursive) | |
4893 | rv = zfs_iter_filesystems(zhp, zfs_hold_one, ha); | |
4894 | zfs_close(zhp); | |
4895 | return (rv); | |
4896 | } | |
4897 | ||
45d1cae3 BB |
4898 | int |
4899 | zfs_hold(zfs_handle_t *zhp, const char *snapname, const char *tag, | |
95fd54a1 | 4900 | boolean_t recursive, int cleanup_fd) |
45d1cae3 | 4901 | { |
13fe0198 MA |
4902 | int ret; |
4903 | struct holdarg ha; | |
45d1cae3 | 4904 | |
13fe0198 MA |
4905 | ha.nvl = fnvlist_alloc(); |
4906 | ha.snapname = snapname; | |
4907 | ha.tag = tag; | |
4908 | ha.recursive = recursive; | |
4909 | (void) zfs_hold_one(zfs_handle_dup(zhp), &ha); | |
b1118acb | 4910 | |
95fd54a1 SH |
4911 | if (nvlist_empty(ha.nvl)) { |
4912 | char errbuf[1024]; | |
4913 | ||
b1118acb MM |
4914 | fnvlist_free(ha.nvl); |
4915 | ret = ENOENT; | |
95fd54a1 SH |
4916 | (void) snprintf(errbuf, sizeof (errbuf), |
4917 | dgettext(TEXT_DOMAIN, | |
4918 | "cannot hold snapshot '%s@%s'"), | |
4919 | zhp->zfs_name, snapname); | |
4920 | (void) zfs_standard_error(zhp->zfs_hdl, ret, errbuf); | |
b1118acb MM |
4921 | return (ret); |
4922 | } | |
4923 | ||
95fd54a1 | 4924 | ret = zfs_hold_nvl(zhp, cleanup_fd, ha.nvl); |
13fe0198 | 4925 | fnvlist_free(ha.nvl); |
572e2857 | 4926 | |
95fd54a1 SH |
4927 | return (ret); |
4928 | } | |
4929 | ||
4930 | int | |
4931 | zfs_hold_nvl(zfs_handle_t *zhp, int cleanup_fd, nvlist_t *holds) | |
4932 | { | |
4933 | int ret; | |
4934 | nvlist_t *errors; | |
4935 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
4936 | char errbuf[1024]; | |
4937 | nvpair_t *elem; | |
4938 | ||
4939 | errors = NULL; | |
4940 | ret = lzc_hold(holds, cleanup_fd, &errors); | |
4941 | ||
4942 | if (ret == 0) { | |
4943 | /* There may be errors even in the success case. */ | |
4944 | fnvlist_free(errors); | |
13fe0198 | 4945 | return (0); |
95fd54a1 | 4946 | } |
45d1cae3 | 4947 | |
95fd54a1 | 4948 | if (nvlist_empty(errors)) { |
13fe0198 MA |
4949 | /* no hold-specific errors */ |
4950 | (void) snprintf(errbuf, sizeof (errbuf), | |
4951 | dgettext(TEXT_DOMAIN, "cannot hold")); | |
4952 | switch (ret) { | |
4953 | case ENOTSUP: | |
4954 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4955 | "pool must be upgraded")); | |
4956 | (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); | |
4957 | break; | |
4958 | case EINVAL: | |
4959 | (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); | |
4960 | break; | |
4961 | default: | |
4962 | (void) zfs_standard_error(hdl, ret, errbuf); | |
4963 | } | |
4964 | } | |
45d1cae3 | 4965 | |
13fe0198 MA |
4966 | for (elem = nvlist_next_nvpair(errors, NULL); |
4967 | elem != NULL; | |
4968 | elem = nvlist_next_nvpair(errors, elem)) { | |
4969 | (void) snprintf(errbuf, sizeof (errbuf), | |
4970 | dgettext(TEXT_DOMAIN, | |
4971 | "cannot hold snapshot '%s'"), nvpair_name(elem)); | |
4972 | switch (fnvpair_value_int32(elem)) { | |
428870ff BB |
4973 | case E2BIG: |
4974 | /* | |
4975 | * Temporary tags wind up having the ds object id | |
4976 | * prepended. So even if we passed the length check | |
4977 | * above, it's still possible for the tag to wind | |
4978 | * up being slightly too long. | |
4979 | */ | |
13fe0198 MA |
4980 | (void) zfs_error(hdl, EZFS_TAGTOOLONG, errbuf); |
4981 | break; | |
45d1cae3 | 4982 | case EINVAL: |
13fe0198 MA |
4983 | (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); |
4984 | break; | |
45d1cae3 | 4985 | case EEXIST: |
13fe0198 MA |
4986 | (void) zfs_error(hdl, EZFS_REFTAG_HOLD, errbuf); |
4987 | break; | |
45d1cae3 | 4988 | default: |
13fe0198 MA |
4989 | (void) zfs_standard_error(hdl, |
4990 | fnvpair_value_int32(elem), errbuf); | |
45d1cae3 BB |
4991 | } |
4992 | } | |
4993 | ||
13fe0198 MA |
4994 | fnvlist_free(errors); |
4995 | return (ret); | |
4996 | } | |
4997 | ||
13fe0198 MA |
4998 | static int |
4999 | zfs_release_one(zfs_handle_t *zhp, void *arg) | |
5000 | { | |
5001 | struct holdarg *ha = arg; | |
eca7b760 | 5002 | char name[ZFS_MAX_DATASET_NAME_LEN]; |
13fe0198 | 5003 | int rv = 0; |
1a077756 | 5004 | nvlist_t *existing_holds; |
13fe0198 | 5005 | |
682ce104 TH |
5006 | if (snprintf(name, sizeof (name), "%s@%s", zhp->zfs_name, |
5007 | ha->snapname) >= sizeof (name)) { | |
5008 | ha->error = EINVAL; | |
5009 | rv = EINVAL; | |
5010 | } | |
13fe0198 | 5011 | |
1a077756 MA |
5012 | if (lzc_get_holds(name, &existing_holds) != 0) { |
5013 | ha->error = ENOENT; | |
5014 | } else if (!nvlist_exists(existing_holds, ha->tag)) { | |
5015 | ha->error = ESRCH; | |
5016 | } else { | |
5017 | nvlist_t *torelease = fnvlist_alloc(); | |
5018 | fnvlist_add_boolean(torelease, ha->tag); | |
5019 | fnvlist_add_nvlist(ha->nvl, name, torelease); | |
5020 | fnvlist_free(torelease); | |
13fe0198 MA |
5021 | } |
5022 | ||
5023 | if (ha->recursive) | |
5024 | rv = zfs_iter_filesystems(zhp, zfs_release_one, ha); | |
5025 | zfs_close(zhp); | |
5026 | return (rv); | |
45d1cae3 BB |
5027 | } |
5028 | ||
5029 | int | |
5030 | zfs_release(zfs_handle_t *zhp, const char *snapname, const char *tag, | |
5031 | boolean_t recursive) | |
5032 | { | |
13fe0198 MA |
5033 | int ret; |
5034 | struct holdarg ha; | |
95fd54a1 | 5035 | nvlist_t *errors = NULL; |
13fe0198 | 5036 | nvpair_t *elem; |
45d1cae3 | 5037 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
b1118acb | 5038 | char errbuf[1024]; |
45d1cae3 | 5039 | |
13fe0198 MA |
5040 | ha.nvl = fnvlist_alloc(); |
5041 | ha.snapname = snapname; | |
5042 | ha.tag = tag; | |
5043 | ha.recursive = recursive; | |
1a077756 | 5044 | ha.error = 0; |
13fe0198 | 5045 | (void) zfs_release_one(zfs_handle_dup(zhp), &ha); |
b1118acb | 5046 | |
95fd54a1 | 5047 | if (nvlist_empty(ha.nvl)) { |
b1118acb | 5048 | fnvlist_free(ha.nvl); |
1a077756 | 5049 | ret = ha.error; |
b1118acb MM |
5050 | (void) snprintf(errbuf, sizeof (errbuf), |
5051 | dgettext(TEXT_DOMAIN, | |
5052 | "cannot release hold from snapshot '%s@%s'"), | |
5053 | zhp->zfs_name, snapname); | |
1a077756 MA |
5054 | if (ret == ESRCH) { |
5055 | (void) zfs_error(hdl, EZFS_REFTAG_RELE, errbuf); | |
5056 | } else { | |
5057 | (void) zfs_standard_error(hdl, ret, errbuf); | |
5058 | } | |
b1118acb MM |
5059 | return (ret); |
5060 | } | |
5061 | ||
13fe0198 MA |
5062 | ret = lzc_release(ha.nvl, &errors); |
5063 | fnvlist_free(ha.nvl); | |
45d1cae3 | 5064 | |
95fd54a1 SH |
5065 | if (ret == 0) { |
5066 | /* There may be errors even in the success case. */ | |
5067 | fnvlist_free(errors); | |
13fe0198 | 5068 | return (0); |
95fd54a1 | 5069 | } |
13fe0198 | 5070 | |
95fd54a1 | 5071 | if (nvlist_empty(errors)) { |
13fe0198 | 5072 | /* no hold-specific errors */ |
45d1cae3 | 5073 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, |
13fe0198 | 5074 | "cannot release")); |
45d1cae3 | 5075 | switch (errno) { |
45d1cae3 BB |
5076 | case ENOTSUP: |
5077 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5078 | "pool must be upgraded")); | |
13fe0198 MA |
5079 | (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); |
5080 | break; | |
5081 | default: | |
5082 | (void) zfs_standard_error_fmt(hdl, errno, errbuf); | |
5083 | } | |
5084 | } | |
5085 | ||
5086 | for (elem = nvlist_next_nvpair(errors, NULL); | |
5087 | elem != NULL; | |
5088 | elem = nvlist_next_nvpair(errors, elem)) { | |
13fe0198 MA |
5089 | (void) snprintf(errbuf, sizeof (errbuf), |
5090 | dgettext(TEXT_DOMAIN, | |
5091 | "cannot release hold from snapshot '%s'"), | |
5092 | nvpair_name(elem)); | |
5093 | switch (fnvpair_value_int32(elem)) { | |
5094 | case ESRCH: | |
5095 | (void) zfs_error(hdl, EZFS_REFTAG_RELE, errbuf); | |
5096 | break; | |
45d1cae3 | 5097 | case EINVAL: |
13fe0198 MA |
5098 | (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); |
5099 | break; | |
45d1cae3 | 5100 | default: |
13fe0198 MA |
5101 | (void) zfs_standard_error_fmt(hdl, |
5102 | fnvpair_value_int32(elem), errbuf); | |
45d1cae3 BB |
5103 | } |
5104 | } | |
5105 | ||
13fe0198 MA |
5106 | fnvlist_free(errors); |
5107 | return (ret); | |
45d1cae3 | 5108 | } |
428870ff | 5109 | |
0b7936d5 AS |
5110 | int |
5111 | zfs_get_fsacl(zfs_handle_t *zhp, nvlist_t **nvl) | |
5112 | { | |
13fe0198 | 5113 | zfs_cmd_t zc = {"\0"}; |
0b7936d5 AS |
5114 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
5115 | int nvsz = 2048; | |
5116 | void *nvbuf; | |
5117 | int err = 0; | |
13fe0198 | 5118 | char errbuf[1024]; |
0b7936d5 AS |
5119 | |
5120 | assert(zhp->zfs_type == ZFS_TYPE_VOLUME || | |
5121 | zhp->zfs_type == ZFS_TYPE_FILESYSTEM); | |
5122 | ||
5123 | tryagain: | |
5124 | ||
5125 | nvbuf = malloc(nvsz); | |
5126 | if (nvbuf == NULL) { | |
5127 | err = (zfs_error(hdl, EZFS_NOMEM, strerror(errno))); | |
5128 | goto out; | |
5129 | } | |
5130 | ||
5131 | zc.zc_nvlist_dst_size = nvsz; | |
5132 | zc.zc_nvlist_dst = (uintptr_t)nvbuf; | |
5133 | ||
eca7b760 | 5134 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); |
0b7936d5 | 5135 | |
b834b58a | 5136 | if (zfs_ioctl(hdl, ZFS_IOC_GET_FSACL, &zc) != 0) { |
0b7936d5 AS |
5137 | (void) snprintf(errbuf, sizeof (errbuf), |
5138 | dgettext(TEXT_DOMAIN, "cannot get permissions on '%s'"), | |
5139 | zc.zc_name); | |
5140 | switch (errno) { | |
5141 | case ENOMEM: | |
5142 | free(nvbuf); | |
5143 | nvsz = zc.zc_nvlist_dst_size; | |
5144 | goto tryagain; | |
5145 | ||
5146 | case ENOTSUP: | |
5147 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5148 | "pool must be upgraded")); | |
5149 | err = zfs_error(hdl, EZFS_BADVERSION, errbuf); | |
5150 | break; | |
5151 | case EINVAL: | |
5152 | err = zfs_error(hdl, EZFS_BADTYPE, errbuf); | |
5153 | break; | |
5154 | case ENOENT: | |
5155 | err = zfs_error(hdl, EZFS_NOENT, errbuf); | |
5156 | break; | |
5157 | default: | |
5158 | err = zfs_standard_error_fmt(hdl, errno, errbuf); | |
5159 | break; | |
5160 | } | |
5161 | } else { | |
5162 | /* success */ | |
5163 | int rc = nvlist_unpack(nvbuf, zc.zc_nvlist_dst_size, nvl, 0); | |
5164 | if (rc) { | |
5165 | (void) snprintf(errbuf, sizeof (errbuf), dgettext( | |
5166 | TEXT_DOMAIN, "cannot get permissions on '%s'"), | |
5167 | zc.zc_name); | |
5168 | err = zfs_standard_error_fmt(hdl, rc, errbuf); | |
5169 | } | |
5170 | } | |
5171 | ||
5172 | free(nvbuf); | |
5173 | out: | |
5174 | return (err); | |
5175 | } | |
5176 | ||
5177 | int | |
5178 | zfs_set_fsacl(zfs_handle_t *zhp, boolean_t un, nvlist_t *nvl) | |
5179 | { | |
13fe0198 | 5180 | zfs_cmd_t zc = {"\0"}; |
0b7936d5 AS |
5181 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
5182 | char *nvbuf; | |
13fe0198 | 5183 | char errbuf[1024]; |
0b7936d5 AS |
5184 | size_t nvsz; |
5185 | int err; | |
5186 | ||
5187 | assert(zhp->zfs_type == ZFS_TYPE_VOLUME || | |
5188 | zhp->zfs_type == ZFS_TYPE_FILESYSTEM); | |
5189 | ||
5190 | err = nvlist_size(nvl, &nvsz, NV_ENCODE_NATIVE); | |
5191 | assert(err == 0); | |
5192 | ||
5193 | nvbuf = malloc(nvsz); | |
5194 | ||
5195 | err = nvlist_pack(nvl, &nvbuf, &nvsz, NV_ENCODE_NATIVE, 0); | |
5196 | assert(err == 0); | |
5197 | ||
5198 | zc.zc_nvlist_src_size = nvsz; | |
5199 | zc.zc_nvlist_src = (uintptr_t)nvbuf; | |
5200 | zc.zc_perm_action = un; | |
5201 | ||
5202 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
5203 | ||
5204 | if (zfs_ioctl(hdl, ZFS_IOC_SET_FSACL, &zc) != 0) { | |
5205 | (void) snprintf(errbuf, sizeof (errbuf), | |
5206 | dgettext(TEXT_DOMAIN, "cannot set permissions on '%s'"), | |
5207 | zc.zc_name); | |
5208 | switch (errno) { | |
5209 | case ENOTSUP: | |
5210 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5211 | "pool must be upgraded")); | |
5212 | err = zfs_error(hdl, EZFS_BADVERSION, errbuf); | |
5213 | break; | |
5214 | case EINVAL: | |
5215 | err = zfs_error(hdl, EZFS_BADTYPE, errbuf); | |
5216 | break; | |
5217 | case ENOENT: | |
5218 | err = zfs_error(hdl, EZFS_NOENT, errbuf); | |
5219 | break; | |
5220 | default: | |
5221 | err = zfs_standard_error_fmt(hdl, errno, errbuf); | |
5222 | break; | |
5223 | } | |
5224 | } | |
5225 | ||
5226 | free(nvbuf); | |
5227 | ||
5228 | return (err); | |
5229 | } | |
5230 | ||
5231 | int | |
5232 | zfs_get_holds(zfs_handle_t *zhp, nvlist_t **nvl) | |
5233 | { | |
13fe0198 MA |
5234 | int err; |
5235 | char errbuf[1024]; | |
0b7936d5 | 5236 | |
13fe0198 | 5237 | err = lzc_get_holds(zhp->zfs_name, nvl); |
0b7936d5 | 5238 | |
13fe0198 MA |
5239 | if (err != 0) { |
5240 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
0b7936d5 | 5241 | |
0b7936d5 AS |
5242 | (void) snprintf(errbuf, sizeof (errbuf), |
5243 | dgettext(TEXT_DOMAIN, "cannot get holds for '%s'"), | |
13fe0198 MA |
5244 | zhp->zfs_name); |
5245 | switch (err) { | |
0b7936d5 AS |
5246 | case ENOTSUP: |
5247 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5248 | "pool must be upgraded")); | |
5249 | err = zfs_error(hdl, EZFS_BADVERSION, errbuf); | |
5250 | break; | |
5251 | case EINVAL: | |
5252 | err = zfs_error(hdl, EZFS_BADTYPE, errbuf); | |
5253 | break; | |
5254 | case ENOENT: | |
5255 | err = zfs_error(hdl, EZFS_NOENT, errbuf); | |
5256 | break; | |
5257 | default: | |
5258 | err = zfs_standard_error_fmt(hdl, errno, errbuf); | |
5259 | break; | |
5260 | } | |
0b7936d5 AS |
5261 | } |
5262 | ||
0b7936d5 AS |
5263 | return (err); |
5264 | } | |
5265 | ||
e49f1e20 | 5266 | /* |
341166c8 MG |
5267 | * The theory of raidz space accounting |
5268 | * | |
5269 | * The "referenced" property of RAIDZ vdevs is scaled such that a 128KB block | |
5270 | * will "reference" 128KB, even though it allocates more than that, to store the | |
5271 | * parity information (and perhaps skip sectors). This concept of the | |
5272 | * "referenced" (and other DMU space accounting) being lower than the allocated | |
5273 | * space by a constant factor is called "raidz deflation." | |
5274 | * | |
5275 | * As mentioned above, the constant factor for raidz deflation assumes a 128KB | |
5276 | * block size. However, zvols typically have a much smaller block size (default | |
5277 | * 8KB). These smaller blocks may require proportionally much more parity | |
5278 | * information (and perhaps skip sectors). In this case, the change to the | |
5279 | * "referenced" property may be much more than the logical block size. | |
5280 | * | |
5281 | * Suppose a raidz vdev has 5 disks with ashift=12. A 128k block may be written | |
5282 | * as follows. | |
5283 | * | |
5284 | * +-------+-------+-------+-------+-------+ | |
5285 | * | disk1 | disk2 | disk3 | disk4 | disk5 | | |
5286 | * +-------+-------+-------+-------+-------+ | |
5287 | * | P0 | D0 | D8 | D16 | D24 | | |
5288 | * | P1 | D1 | D9 | D17 | D25 | | |
5289 | * | P2 | D2 | D10 | D18 | D26 | | |
5290 | * | P3 | D3 | D11 | D19 | D27 | | |
5291 | * | P4 | D4 | D12 | D20 | D28 | | |
5292 | * | P5 | D5 | D13 | D21 | D29 | | |
5293 | * | P6 | D6 | D14 | D22 | D30 | | |
5294 | * | P7 | D7 | D15 | D23 | D31 | | |
5295 | * +-------+-------+-------+-------+-------+ | |
5296 | * | |
5297 | * Above, notice that 160k was allocated: 8 x 4k parity sectors + 32 x 4k data | |
5298 | * sectors. The dataset's referenced will increase by 128k and the pool's | |
5299 | * allocated and free properties will be adjusted by 160k. | |
5300 | * | |
5301 | * A 4k block written to the same raidz vdev will require two 4k sectors. The | |
5302 | * blank cells represent unallocated space. | |
5303 | * | |
5304 | * +-------+-------+-------+-------+-------+ | |
5305 | * | disk1 | disk2 | disk3 | disk4 | disk5 | | |
5306 | * +-------+-------+-------+-------+-------+ | |
5307 | * | P0 | D0 | | | | | |
5308 | * +-------+-------+-------+-------+-------+ | |
5309 | * | |
5310 | * Above, notice that the 4k block required one sector for parity and another | |
5311 | * for data. vdev_raidz_asize() will return 8k and as such the pool's allocated | |
5312 | * and free properties will be adjusted by 8k. The dataset will not be charged | |
5313 | * 8k. Rather, it will be charged a value that is scaled according to the | |
5314 | * overhead of the 128k block on the same vdev. This 8k allocation will be | |
5315 | * charged 8k * 128k / 160k. 128k is from SPA_OLD_MAXBLOCKSIZE and 160k is as | |
5316 | * calculated in the 128k block example above. | |
5317 | * | |
5318 | * Every raidz allocation is sized to be a multiple of nparity+1 sectors. That | |
5319 | * is, every raidz1 allocation will be a multiple of 2 sectors, raidz2 | |
5320 | * allocations are a multiple of 3 sectors, and raidz3 allocations are a | |
5321 | * multiple of of 4 sectors. When a block does not fill the required number of | |
5322 | * sectors, skip blocks (sectors) are used. | |
5323 | * | |
5324 | * An 8k block being written to a raidz vdev may be written as follows: | |
5325 | * | |
5326 | * +-------+-------+-------+-------+-------+ | |
5327 | * | disk1 | disk2 | disk3 | disk4 | disk5 | | |
5328 | * +-------+-------+-------+-------+-------+ | |
5329 | * | P0 | D0 | D1 | S0 | | | |
5330 | * +-------+-------+-------+-------+-------+ | |
5331 | * | |
5332 | * In order to maintain the nparity+1 allocation size, a skip block (S0) was | |
5333 | * added. For this 8k block, the pool's allocated and free properties are | |
5334 | * adjusted by 16k and the dataset's referenced is increased by 16k * 128k / | |
5335 | * 160k. Again, 128k is from SPA_OLD_MAXBLOCKSIZE and 160k is as calculated in | |
5336 | * the 128k block example above. | |
5337 | * | |
5338 | * Compression may lead to a variety of block sizes being written for the same | |
5339 | * volume or file. There is no clear way to reserve just the amount of space | |
5340 | * that will be required, so the worst case (no compression) is assumed. | |
5341 | * Note that metadata blocks will typically be compressed, so the reservation | |
5342 | * size returned by zvol_volsize_to_reservation() will generally be slightly | |
5343 | * larger than the maximum that the volume can reference. | |
5344 | */ | |
5345 | ||
5346 | /* | |
5347 | * Derived from function of same name in module/zfs/vdev_raidz.c. Returns the | |
5348 | * amount of space (in bytes) that will be allocated for the specified block | |
5349 | * size. Note that the "referenced" space accounted will be less than this, but | |
5350 | * not necessarily equal to "blksize", due to RAIDZ deflation. | |
5351 | */ | |
5352 | static uint64_t | |
5353 | vdev_raidz_asize(uint64_t ndisks, uint64_t nparity, uint64_t ashift, | |
5354 | uint64_t blksize) | |
5355 | { | |
5356 | uint64_t asize, ndata; | |
5357 | ||
5358 | ASSERT3U(ndisks, >, nparity); | |
5359 | ndata = ndisks - nparity; | |
5360 | asize = ((blksize - 1) >> ashift) + 1; | |
5361 | asize += nparity * ((asize + ndata - 1) / ndata); | |
5362 | asize = roundup(asize, nparity + 1) << ashift; | |
5363 | ||
5364 | return (asize); | |
5365 | } | |
5366 | ||
5367 | /* | |
5368 | * Determine how much space will be allocated if it lands on the most space- | |
5369 | * inefficient top-level vdev. Returns the size in bytes required to store one | |
5370 | * copy of the volume data. See theory comment above. | |
5371 | */ | |
5372 | static uint64_t | |
5373 | volsize_from_vdevs(zpool_handle_t *zhp, uint64_t nblocks, uint64_t blksize) | |
5374 | { | |
5375 | nvlist_t *config, *tree, **vdevs; | |
5376 | uint_t nvdevs, v; | |
5377 | uint64_t ret = 0; | |
5378 | ||
5379 | config = zpool_get_config(zhp, NULL); | |
5380 | if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &tree) != 0 || | |
5381 | nvlist_lookup_nvlist_array(tree, ZPOOL_CONFIG_CHILDREN, | |
5382 | &vdevs, &nvdevs) != 0) { | |
5383 | return (nblocks * blksize); | |
5384 | } | |
5385 | ||
5386 | for (v = 0; v < nvdevs; v++) { | |
5387 | char *type; | |
5388 | uint64_t nparity, ashift, asize, tsize; | |
5389 | nvlist_t **disks; | |
5390 | uint_t ndisks; | |
5391 | uint64_t volsize; | |
5392 | ||
5393 | if (nvlist_lookup_string(vdevs[v], ZPOOL_CONFIG_TYPE, | |
5394 | &type) != 0 || strcmp(type, VDEV_TYPE_RAIDZ) != 0 || | |
5395 | nvlist_lookup_uint64(vdevs[v], ZPOOL_CONFIG_NPARITY, | |
5396 | &nparity) != 0 || | |
5397 | nvlist_lookup_uint64(vdevs[v], ZPOOL_CONFIG_ASHIFT, | |
5398 | &ashift) != 0 || | |
5399 | nvlist_lookup_nvlist_array(vdevs[v], ZPOOL_CONFIG_CHILDREN, | |
5400 | &disks, &ndisks) != 0) { | |
5401 | continue; | |
5402 | } | |
5403 | ||
5404 | /* allocation size for the "typical" 128k block */ | |
5405 | tsize = vdev_raidz_asize(ndisks, nparity, ashift, | |
5406 | SPA_OLD_MAXBLOCKSIZE); | |
5407 | /* allocation size for the blksize block */ | |
5408 | asize = vdev_raidz_asize(ndisks, nparity, ashift, blksize); | |
5409 | ||
5410 | /* | |
5411 | * Scale this size down as a ratio of 128k / tsize. See theory | |
5412 | * statement above. | |
5413 | */ | |
5414 | volsize = nblocks * asize * SPA_OLD_MAXBLOCKSIZE / tsize; | |
5415 | if (volsize > ret) { | |
5416 | ret = volsize; | |
5417 | } | |
5418 | } | |
5419 | ||
5420 | if (ret == 0) { | |
5421 | ret = nblocks * blksize; | |
5422 | } | |
5423 | ||
5424 | return (ret); | |
5425 | } | |
5426 | ||
5427 | /* | |
5428 | * Convert the zvol's volume size to an appropriate reservation. See theory | |
5429 | * comment above. | |
5430 | * | |
e49f1e20 | 5431 | * Note: If this routine is updated, it is necessary to update the ZFS test |
341166c8 | 5432 | * suite's shell version in reservation.shlib. |
e49f1e20 | 5433 | */ |
428870ff | 5434 | uint64_t |
341166c8 MG |
5435 | zvol_volsize_to_reservation(zpool_handle_t *zph, uint64_t volsize, |
5436 | nvlist_t *props) | |
428870ff BB |
5437 | { |
5438 | uint64_t numdb; | |
5439 | uint64_t nblocks, volblocksize; | |
5440 | int ncopies; | |
5441 | char *strval; | |
5442 | ||
5443 | if (nvlist_lookup_string(props, | |
5444 | zfs_prop_to_name(ZFS_PROP_COPIES), &strval) == 0) | |
5445 | ncopies = atoi(strval); | |
5446 | else | |
5447 | ncopies = 1; | |
5448 | if (nvlist_lookup_uint64(props, | |
5449 | zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
5450 | &volblocksize) != 0) | |
5451 | volblocksize = ZVOL_DEFAULT_BLOCKSIZE; | |
341166c8 MG |
5452 | |
5453 | nblocks = volsize / volblocksize; | |
5454 | /* | |
5455 | * Metadata defaults to using 128k blocks, not volblocksize blocks. For | |
5456 | * this reason, only the data blocks are scaled based on vdev config. | |
5457 | */ | |
5458 | volsize = volsize_from_vdevs(zph, nblocks, volblocksize); | |
5459 | ||
428870ff BB |
5460 | /* start with metadnode L0-L6 */ |
5461 | numdb = 7; | |
5462 | /* calculate number of indirects */ | |
5463 | while (nblocks > 1) { | |
5464 | nblocks += DNODES_PER_LEVEL - 1; | |
5465 | nblocks /= DNODES_PER_LEVEL; | |
5466 | numdb += nblocks; | |
5467 | } | |
5468 | numdb *= MIN(SPA_DVAS_PER_BP, ncopies + 1); | |
5469 | volsize *= ncopies; | |
5470 | /* | |
5471 | * this is exactly DN_MAX_INDBLKSHIFT when metadata isn't | |
5472 | * compressed, but in practice they compress down to about | |
5473 | * 1100 bytes | |
5474 | */ | |
5475 | numdb *= 1ULL << DN_MAX_INDBLKSHIFT; | |
5476 | volsize += numdb; | |
5477 | return (volsize); | |
5478 | } | |
5a42ef04 PD |
5479 | |
5480 | /* | |
5481 | * Wait for the given activity and return the status of the wait (whether or not | |
5482 | * any waiting was done) in the 'waited' parameter. Non-existent fses are | |
5483 | * reported via the 'missing' parameter, rather than by printing an error | |
5484 | * message. This is convenient when this function is called in a loop over a | |
5485 | * long period of time (as it is, for example, by zfs's wait cmd). In that | |
5486 | * scenario, a fs being exported or destroyed should be considered a normal | |
5487 | * event, so we don't want to print an error when we find that the fs doesn't | |
5488 | * exist. | |
5489 | */ | |
5490 | int | |
5491 | zfs_wait_status(zfs_handle_t *zhp, zfs_wait_activity_t activity, | |
5492 | boolean_t *missing, boolean_t *waited) | |
5493 | { | |
5494 | int error = lzc_wait_fs(zhp->zfs_name, activity, waited); | |
5495 | *missing = (error == ENOENT); | |
5496 | if (*missing) | |
5497 | return (0); | |
5498 | ||
5499 | if (error != 0) { | |
5500 | (void) zfs_standard_error_fmt(zhp->zfs_hdl, error, | |
5501 | dgettext(TEXT_DOMAIN, "error waiting in fs '%s'"), | |
5502 | zhp->zfs_name); | |
5503 | } | |
5504 | ||
5505 | return (error); | |
5506 | } |