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34dc7c2f BB |
1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
4 | * The contents of this file are subject to the terms of the | |
5 | * Common Development and Distribution License (the "License"). | |
6 | * You may not use this file except in compliance with the License. | |
7 | * | |
8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 | * or http://www.opensolaris.org/os/licensing. | |
10 | * See the License for the specific language governing permissions | |
11 | * and limitations under the License. | |
12 | * | |
13 | * When distributing Covered Code, include this CDDL HEADER in each | |
14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 | * If applicable, add the following below this CDDL HEADER, with the | |
16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
21 | ||
22 | /* | |
572e2857 | 23 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
0b7936d5 | 24 | * Copyright (c) 2010 Nexenta Systems, Inc. All rights reserved. |
c7f2d69d | 25 | * Copyright (c) 2012 by Delphix. All rights reserved. |
0cee2406 | 26 | * Copyright (c) 2012 Pawel Jakub Dawidek <pawel@dawidek.net>. |
34dc7c2f BB |
27 | */ |
28 | ||
34dc7c2f BB |
29 | #include <ctype.h> |
30 | #include <errno.h> | |
34dc7c2f BB |
31 | #include <libintl.h> |
32 | #include <math.h> | |
33 | #include <stdio.h> | |
34 | #include <stdlib.h> | |
35 | #include <strings.h> | |
36 | #include <unistd.h> | |
37 | #include <stddef.h> | |
38 | #include <zone.h> | |
39 | #include <fcntl.h> | |
40 | #include <sys/mntent.h> | |
34dc7c2f | 41 | #include <sys/mount.h> |
34dc7c2f BB |
42 | #include <priv.h> |
43 | #include <pwd.h> | |
44 | #include <grp.h> | |
45 | #include <stddef.h> | |
46 | #include <ucred.h> | |
be160928 | 47 | #ifdef HAVE_IDMAP |
9babb374 BB |
48 | #include <idmap.h> |
49 | #include <aclutils.h> | |
45d1cae3 | 50 | #include <directory.h> |
be160928 | 51 | #endif /* HAVE_IDMAP */ |
34dc7c2f | 52 | |
428870ff | 53 | #include <sys/dnode.h> |
34dc7c2f BB |
54 | #include <sys/spa.h> |
55 | #include <sys/zap.h> | |
56 | #include <libzfs.h> | |
57 | ||
58 | #include "zfs_namecheck.h" | |
59 | #include "zfs_prop.h" | |
60 | #include "libzfs_impl.h" | |
61 | #include "zfs_deleg.h" | |
62 | ||
d603ed6c | 63 | static int zvol_create_link_common(libzfs_handle_t *, const char *, int); |
9babb374 BB |
64 | static int userquota_propname_decode(const char *propname, boolean_t zoned, |
65 | zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp); | |
34dc7c2f BB |
66 | |
67 | /* | |
68 | * Given a single type (not a mask of types), return the type in a human | |
69 | * readable form. | |
70 | */ | |
71 | const char * | |
72 | zfs_type_to_name(zfs_type_t type) | |
73 | { | |
74 | switch (type) { | |
75 | case ZFS_TYPE_FILESYSTEM: | |
76 | return (dgettext(TEXT_DOMAIN, "filesystem")); | |
77 | case ZFS_TYPE_SNAPSHOT: | |
78 | return (dgettext(TEXT_DOMAIN, "snapshot")); | |
79 | case ZFS_TYPE_VOLUME: | |
80 | return (dgettext(TEXT_DOMAIN, "volume")); | |
e75c13c3 BB |
81 | default: |
82 | break; | |
34dc7c2f BB |
83 | } |
84 | ||
85 | return (NULL); | |
86 | } | |
87 | ||
34dc7c2f BB |
88 | /* |
89 | * Validate a ZFS path. This is used even before trying to open the dataset, to | |
9babb374 BB |
90 | * provide a more meaningful error message. We call zfs_error_aux() to |
91 | * explain exactly why the name was not valid. | |
34dc7c2f | 92 | */ |
572e2857 | 93 | int |
34dc7c2f BB |
94 | zfs_validate_name(libzfs_handle_t *hdl, const char *path, int type, |
95 | boolean_t modifying) | |
96 | { | |
97 | namecheck_err_t why; | |
98 | char what; | |
99 | ||
0b7936d5 | 100 | (void) zfs_prop_get_table(); |
34dc7c2f BB |
101 | if (dataset_namecheck(path, &why, &what) != 0) { |
102 | if (hdl != NULL) { | |
103 | switch (why) { | |
104 | case NAME_ERR_TOOLONG: | |
105 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
106 | "name is too long")); | |
107 | break; | |
108 | ||
109 | case NAME_ERR_LEADING_SLASH: | |
110 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
111 | "leading slash in name")); | |
112 | break; | |
113 | ||
114 | case NAME_ERR_EMPTY_COMPONENT: | |
115 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
116 | "empty component in name")); | |
117 | break; | |
118 | ||
119 | case NAME_ERR_TRAILING_SLASH: | |
120 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
121 | "trailing slash in name")); | |
122 | break; | |
123 | ||
124 | case NAME_ERR_INVALCHAR: | |
125 | zfs_error_aux(hdl, | |
126 | dgettext(TEXT_DOMAIN, "invalid character " | |
127 | "'%c' in name"), what); | |
128 | break; | |
129 | ||
130 | case NAME_ERR_MULTIPLE_AT: | |
131 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
132 | "multiple '@' delimiters in name")); | |
133 | break; | |
134 | ||
135 | case NAME_ERR_NOLETTER: | |
136 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
137 | "pool doesn't begin with a letter")); | |
138 | break; | |
139 | ||
140 | case NAME_ERR_RESERVED: | |
141 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
142 | "name is reserved")); | |
143 | break; | |
144 | ||
145 | case NAME_ERR_DISKLIKE: | |
146 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
147 | "reserved disk name")); | |
148 | break; | |
e75c13c3 BB |
149 | default: |
150 | break; | |
34dc7c2f BB |
151 | } |
152 | } | |
153 | ||
154 | return (0); | |
155 | } | |
156 | ||
157 | if (!(type & ZFS_TYPE_SNAPSHOT) && strchr(path, '@') != NULL) { | |
158 | if (hdl != NULL) | |
159 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
160 | "snapshot delimiter '@' in filesystem name")); | |
161 | return (0); | |
162 | } | |
163 | ||
164 | if (type == ZFS_TYPE_SNAPSHOT && strchr(path, '@') == NULL) { | |
165 | if (hdl != NULL) | |
166 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
167 | "missing '@' delimiter in snapshot name")); | |
168 | return (0); | |
169 | } | |
170 | ||
171 | if (modifying && strchr(path, '%') != NULL) { | |
172 | if (hdl != NULL) | |
173 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
174 | "invalid character %c in name"), '%'); | |
175 | return (0); | |
176 | } | |
177 | ||
178 | return (-1); | |
179 | } | |
180 | ||
181 | int | |
182 | zfs_name_valid(const char *name, zfs_type_t type) | |
183 | { | |
184 | if (type == ZFS_TYPE_POOL) | |
185 | return (zpool_name_valid(NULL, B_FALSE, name)); | |
186 | return (zfs_validate_name(NULL, name, type, B_FALSE)); | |
187 | } | |
188 | ||
189 | /* | |
190 | * This function takes the raw DSL properties, and filters out the user-defined | |
191 | * properties into a separate nvlist. | |
192 | */ | |
193 | static nvlist_t * | |
194 | process_user_props(zfs_handle_t *zhp, nvlist_t *props) | |
195 | { | |
196 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
197 | nvpair_t *elem; | |
198 | nvlist_t *propval; | |
199 | nvlist_t *nvl; | |
200 | ||
201 | if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) { | |
202 | (void) no_memory(hdl); | |
203 | return (NULL); | |
204 | } | |
205 | ||
206 | elem = NULL; | |
207 | while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { | |
208 | if (!zfs_prop_user(nvpair_name(elem))) | |
209 | continue; | |
210 | ||
211 | verify(nvpair_value_nvlist(elem, &propval) == 0); | |
212 | if (nvlist_add_nvlist(nvl, nvpair_name(elem), propval) != 0) { | |
213 | nvlist_free(nvl); | |
214 | (void) no_memory(hdl); | |
215 | return (NULL); | |
216 | } | |
217 | } | |
218 | ||
219 | return (nvl); | |
220 | } | |
221 | ||
b128c09f BB |
222 | static zpool_handle_t * |
223 | zpool_add_handle(zfs_handle_t *zhp, const char *pool_name) | |
224 | { | |
225 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
226 | zpool_handle_t *zph; | |
227 | ||
228 | if ((zph = zpool_open_canfail(hdl, pool_name)) != NULL) { | |
229 | if (hdl->libzfs_pool_handles != NULL) | |
230 | zph->zpool_next = hdl->libzfs_pool_handles; | |
231 | hdl->libzfs_pool_handles = zph; | |
232 | } | |
233 | return (zph); | |
234 | } | |
235 | ||
236 | static zpool_handle_t * | |
237 | zpool_find_handle(zfs_handle_t *zhp, const char *pool_name, int len) | |
238 | { | |
239 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
240 | zpool_handle_t *zph = hdl->libzfs_pool_handles; | |
241 | ||
242 | while ((zph != NULL) && | |
243 | (strncmp(pool_name, zpool_get_name(zph), len) != 0)) | |
244 | zph = zph->zpool_next; | |
245 | return (zph); | |
246 | } | |
247 | ||
248 | /* | |
249 | * Returns a handle to the pool that contains the provided dataset. | |
250 | * If a handle to that pool already exists then that handle is returned. | |
251 | * Otherwise, a new handle is created and added to the list of handles. | |
252 | */ | |
253 | static zpool_handle_t * | |
254 | zpool_handle(zfs_handle_t *zhp) | |
255 | { | |
256 | char *pool_name; | |
257 | int len; | |
258 | zpool_handle_t *zph; | |
259 | ||
260 | len = strcspn(zhp->zfs_name, "/@") + 1; | |
261 | pool_name = zfs_alloc(zhp->zfs_hdl, len); | |
262 | (void) strlcpy(pool_name, zhp->zfs_name, len); | |
263 | ||
264 | zph = zpool_find_handle(zhp, pool_name, len); | |
265 | if (zph == NULL) | |
266 | zph = zpool_add_handle(zhp, pool_name); | |
267 | ||
268 | free(pool_name); | |
269 | return (zph); | |
270 | } | |
271 | ||
272 | void | |
273 | zpool_free_handles(libzfs_handle_t *hdl) | |
274 | { | |
275 | zpool_handle_t *next, *zph = hdl->libzfs_pool_handles; | |
276 | ||
277 | while (zph != NULL) { | |
278 | next = zph->zpool_next; | |
279 | zpool_close(zph); | |
280 | zph = next; | |
281 | } | |
282 | hdl->libzfs_pool_handles = NULL; | |
283 | } | |
284 | ||
34dc7c2f BB |
285 | /* |
286 | * Utility function to gather stats (objset and zpl) for the given object. | |
287 | */ | |
288 | static int | |
fb5f0bc8 | 289 | get_stats_ioctl(zfs_handle_t *zhp, zfs_cmd_t *zc) |
34dc7c2f | 290 | { |
34dc7c2f | 291 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
34dc7c2f | 292 | |
fb5f0bc8 | 293 | (void) strlcpy(zc->zc_name, zhp->zfs_name, sizeof (zc->zc_name)); |
34dc7c2f | 294 | |
fb5f0bc8 | 295 | while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, zc) != 0) { |
34dc7c2f | 296 | if (errno == ENOMEM) { |
fb5f0bc8 | 297 | if (zcmd_expand_dst_nvlist(hdl, zc) != 0) { |
34dc7c2f BB |
298 | return (-1); |
299 | } | |
300 | } else { | |
34dc7c2f BB |
301 | return (-1); |
302 | } | |
303 | } | |
fb5f0bc8 BB |
304 | return (0); |
305 | } | |
34dc7c2f | 306 | |
428870ff BB |
307 | /* |
308 | * Utility function to get the received properties of the given object. | |
309 | */ | |
310 | static int | |
311 | get_recvd_props_ioctl(zfs_handle_t *zhp) | |
312 | { | |
313 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
314 | nvlist_t *recvdprops; | |
2598c001 | 315 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
428870ff BB |
316 | int err; |
317 | ||
318 | if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) | |
319 | return (-1); | |
320 | ||
321 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
322 | ||
323 | while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_RECVD_PROPS, &zc) != 0) { | |
324 | if (errno == ENOMEM) { | |
325 | if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) { | |
326 | return (-1); | |
327 | } | |
328 | } else { | |
329 | zcmd_free_nvlists(&zc); | |
330 | return (-1); | |
331 | } | |
332 | } | |
333 | ||
334 | err = zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &recvdprops); | |
335 | zcmd_free_nvlists(&zc); | |
336 | if (err != 0) | |
337 | return (-1); | |
338 | ||
339 | nvlist_free(zhp->zfs_recvd_props); | |
340 | zhp->zfs_recvd_props = recvdprops; | |
341 | ||
342 | return (0); | |
343 | } | |
344 | ||
fb5f0bc8 BB |
345 | static int |
346 | put_stats_zhdl(zfs_handle_t *zhp, zfs_cmd_t *zc) | |
347 | { | |
348 | nvlist_t *allprops, *userprops; | |
34dc7c2f | 349 | |
fb5f0bc8 BB |
350 | zhp->zfs_dmustats = zc->zc_objset_stats; /* structure assignment */ |
351 | ||
352 | if (zcmd_read_dst_nvlist(zhp->zfs_hdl, zc, &allprops) != 0) { | |
34dc7c2f BB |
353 | return (-1); |
354 | } | |
355 | ||
9babb374 BB |
356 | /* |
357 | * XXX Why do we store the user props separately, in addition to | |
358 | * storing them in zfs_props? | |
359 | */ | |
34dc7c2f BB |
360 | if ((userprops = process_user_props(zhp, allprops)) == NULL) { |
361 | nvlist_free(allprops); | |
362 | return (-1); | |
363 | } | |
364 | ||
365 | nvlist_free(zhp->zfs_props); | |
366 | nvlist_free(zhp->zfs_user_props); | |
367 | ||
368 | zhp->zfs_props = allprops; | |
369 | zhp->zfs_user_props = userprops; | |
370 | ||
371 | return (0); | |
372 | } | |
373 | ||
fb5f0bc8 BB |
374 | static int |
375 | get_stats(zfs_handle_t *zhp) | |
376 | { | |
377 | int rc = 0; | |
2598c001 | 378 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
fb5f0bc8 BB |
379 | |
380 | if (zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) | |
381 | return (-1); | |
382 | if (get_stats_ioctl(zhp, &zc) != 0) | |
383 | rc = -1; | |
384 | else if (put_stats_zhdl(zhp, &zc) != 0) | |
385 | rc = -1; | |
386 | zcmd_free_nvlists(&zc); | |
387 | return (rc); | |
388 | } | |
389 | ||
34dc7c2f BB |
390 | /* |
391 | * Refresh the properties currently stored in the handle. | |
392 | */ | |
393 | void | |
394 | zfs_refresh_properties(zfs_handle_t *zhp) | |
395 | { | |
396 | (void) get_stats(zhp); | |
397 | } | |
398 | ||
399 | /* | |
400 | * Makes a handle from the given dataset name. Used by zfs_open() and | |
401 | * zfs_iter_* to create child handles on the fly. | |
402 | */ | |
fb5f0bc8 BB |
403 | static int |
404 | make_dataset_handle_common(zfs_handle_t *zhp, zfs_cmd_t *zc) | |
34dc7c2f | 405 | { |
428870ff | 406 | if (put_stats_zhdl(zhp, zc) != 0) |
fb5f0bc8 | 407 | return (-1); |
34dc7c2f BB |
408 | |
409 | /* | |
410 | * We've managed to open the dataset and gather statistics. Determine | |
411 | * the high-level type. | |
412 | */ | |
413 | if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) | |
414 | zhp->zfs_head_type = ZFS_TYPE_VOLUME; | |
415 | else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) | |
416 | zhp->zfs_head_type = ZFS_TYPE_FILESYSTEM; | |
ff998d80 PS |
417 | else if (zhp->zfs_dmustats.dds_type == DMU_OST_OTHER) |
418 | return (-1); /* zpios' and other testing datasets are | |
419 | of this type, ignore if encountered */ | |
34dc7c2f BB |
420 | else |
421 | abort(); | |
422 | ||
423 | if (zhp->zfs_dmustats.dds_is_snapshot) | |
424 | zhp->zfs_type = ZFS_TYPE_SNAPSHOT; | |
425 | else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) | |
426 | zhp->zfs_type = ZFS_TYPE_VOLUME; | |
427 | else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) | |
428 | zhp->zfs_type = ZFS_TYPE_FILESYSTEM; | |
429 | else | |
430 | abort(); /* we should never see any other types */ | |
431 | ||
428870ff BB |
432 | if ((zhp->zpool_hdl = zpool_handle(zhp)) == NULL) |
433 | return (-1); | |
434 | ||
fb5f0bc8 BB |
435 | return (0); |
436 | } | |
437 | ||
438 | zfs_handle_t * | |
439 | make_dataset_handle(libzfs_handle_t *hdl, const char *path) | |
440 | { | |
2598c001 | 441 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
fb5f0bc8 BB |
442 | |
443 | zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); | |
444 | ||
445 | if (zhp == NULL) | |
446 | return (NULL); | |
447 | ||
448 | zhp->zfs_hdl = hdl; | |
449 | (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); | |
450 | if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) { | |
451 | free(zhp); | |
452 | return (NULL); | |
453 | } | |
454 | if (get_stats_ioctl(zhp, &zc) == -1) { | |
455 | zcmd_free_nvlists(&zc); | |
456 | free(zhp); | |
457 | return (NULL); | |
458 | } | |
459 | if (make_dataset_handle_common(zhp, &zc) == -1) { | |
460 | free(zhp); | |
461 | zhp = NULL; | |
462 | } | |
463 | zcmd_free_nvlists(&zc); | |
464 | return (zhp); | |
465 | } | |
466 | ||
330d06f9 | 467 | zfs_handle_t * |
fb5f0bc8 BB |
468 | make_dataset_handle_zc(libzfs_handle_t *hdl, zfs_cmd_t *zc) |
469 | { | |
470 | zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); | |
471 | ||
472 | if (zhp == NULL) | |
473 | return (NULL); | |
474 | ||
475 | zhp->zfs_hdl = hdl; | |
476 | (void) strlcpy(zhp->zfs_name, zc->zc_name, sizeof (zhp->zfs_name)); | |
477 | if (make_dataset_handle_common(zhp, zc) == -1) { | |
478 | free(zhp); | |
479 | return (NULL); | |
480 | } | |
34dc7c2f BB |
481 | return (zhp); |
482 | } | |
483 | ||
330d06f9 | 484 | zfs_handle_t * |
0cee2406 PJD |
485 | make_dataset_simple_handle_zc(zfs_handle_t *pzhp, zfs_cmd_t *zc) |
486 | { | |
487 | zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); | |
488 | ||
489 | if (zhp == NULL) | |
490 | return (NULL); | |
491 | ||
492 | zhp->zfs_hdl = pzhp->zfs_hdl; | |
493 | (void) strlcpy(zhp->zfs_name, zc->zc_name, sizeof (zhp->zfs_name)); | |
494 | zhp->zfs_head_type = pzhp->zfs_type; | |
495 | zhp->zfs_type = ZFS_TYPE_SNAPSHOT; | |
496 | zhp->zpool_hdl = zpool_handle(zhp); | |
497 | ||
498 | return (zhp); | |
499 | } | |
500 | ||
330d06f9 MA |
501 | zfs_handle_t * |
502 | zfs_handle_dup(zfs_handle_t *zhp_orig) | |
503 | { | |
504 | zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); | |
505 | ||
506 | if (zhp == NULL) | |
507 | return (NULL); | |
508 | ||
509 | zhp->zfs_hdl = zhp_orig->zfs_hdl; | |
510 | zhp->zpool_hdl = zhp_orig->zpool_hdl; | |
511 | (void) strlcpy(zhp->zfs_name, zhp_orig->zfs_name, | |
512 | sizeof (zhp->zfs_name)); | |
513 | zhp->zfs_type = zhp_orig->zfs_type; | |
514 | zhp->zfs_head_type = zhp_orig->zfs_head_type; | |
515 | zhp->zfs_dmustats = zhp_orig->zfs_dmustats; | |
516 | if (zhp_orig->zfs_props != NULL) { | |
517 | if (nvlist_dup(zhp_orig->zfs_props, &zhp->zfs_props, 0) != 0) { | |
518 | (void) no_memory(zhp->zfs_hdl); | |
519 | zfs_close(zhp); | |
520 | return (NULL); | |
521 | } | |
522 | } | |
523 | if (zhp_orig->zfs_user_props != NULL) { | |
524 | if (nvlist_dup(zhp_orig->zfs_user_props, | |
525 | &zhp->zfs_user_props, 0) != 0) { | |
526 | (void) no_memory(zhp->zfs_hdl); | |
527 | zfs_close(zhp); | |
528 | return (NULL); | |
529 | } | |
530 | } | |
531 | if (zhp_orig->zfs_recvd_props != NULL) { | |
532 | if (nvlist_dup(zhp_orig->zfs_recvd_props, | |
533 | &zhp->zfs_recvd_props, 0)) { | |
534 | (void) no_memory(zhp->zfs_hdl); | |
535 | zfs_close(zhp); | |
536 | return (NULL); | |
537 | } | |
538 | } | |
539 | zhp->zfs_mntcheck = zhp_orig->zfs_mntcheck; | |
540 | if (zhp_orig->zfs_mntopts != NULL) { | |
541 | zhp->zfs_mntopts = zfs_strdup(zhp_orig->zfs_hdl, | |
542 | zhp_orig->zfs_mntopts); | |
543 | } | |
544 | zhp->zfs_props_table = zhp_orig->zfs_props_table; | |
545 | return (zhp); | |
546 | } | |
547 | ||
34dc7c2f BB |
548 | /* |
549 | * Opens the given snapshot, filesystem, or volume. The 'types' | |
550 | * argument is a mask of acceptable types. The function will print an | |
551 | * appropriate error message and return NULL if it can't be opened. | |
552 | */ | |
553 | zfs_handle_t * | |
554 | zfs_open(libzfs_handle_t *hdl, const char *path, int types) | |
555 | { | |
556 | zfs_handle_t *zhp; | |
557 | char errbuf[1024]; | |
558 | ||
559 | (void) snprintf(errbuf, sizeof (errbuf), | |
560 | dgettext(TEXT_DOMAIN, "cannot open '%s'"), path); | |
561 | ||
562 | /* | |
563 | * Validate the name before we even try to open it. | |
564 | */ | |
565 | if (!zfs_validate_name(hdl, path, ZFS_TYPE_DATASET, B_FALSE)) { | |
566 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
567 | "invalid dataset name")); | |
568 | (void) zfs_error(hdl, EZFS_INVALIDNAME, errbuf); | |
569 | return (NULL); | |
570 | } | |
571 | ||
572 | /* | |
573 | * Try to get stats for the dataset, which will tell us if it exists. | |
574 | */ | |
575 | errno = 0; | |
576 | if ((zhp = make_dataset_handle(hdl, path)) == NULL) { | |
577 | (void) zfs_standard_error(hdl, errno, errbuf); | |
578 | return (NULL); | |
579 | } | |
580 | ||
581 | if (!(types & zhp->zfs_type)) { | |
582 | (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); | |
583 | zfs_close(zhp); | |
584 | return (NULL); | |
585 | } | |
586 | ||
587 | return (zhp); | |
588 | } | |
589 | ||
590 | /* | |
591 | * Release a ZFS handle. Nothing to do but free the associated memory. | |
592 | */ | |
593 | void | |
594 | zfs_close(zfs_handle_t *zhp) | |
595 | { | |
596 | if (zhp->zfs_mntopts) | |
597 | free(zhp->zfs_mntopts); | |
598 | nvlist_free(zhp->zfs_props); | |
599 | nvlist_free(zhp->zfs_user_props); | |
428870ff | 600 | nvlist_free(zhp->zfs_recvd_props); |
34dc7c2f BB |
601 | free(zhp); |
602 | } | |
603 | ||
fb5f0bc8 BB |
604 | typedef struct mnttab_node { |
605 | struct mnttab mtn_mt; | |
606 | avl_node_t mtn_node; | |
607 | } mnttab_node_t; | |
608 | ||
609 | static int | |
610 | libzfs_mnttab_cache_compare(const void *arg1, const void *arg2) | |
611 | { | |
612 | const mnttab_node_t *mtn1 = arg1; | |
613 | const mnttab_node_t *mtn2 = arg2; | |
614 | int rv; | |
615 | ||
616 | rv = strcmp(mtn1->mtn_mt.mnt_special, mtn2->mtn_mt.mnt_special); | |
617 | ||
618 | if (rv == 0) | |
619 | return (0); | |
620 | return (rv > 0 ? 1 : -1); | |
621 | } | |
622 | ||
623 | void | |
624 | libzfs_mnttab_init(libzfs_handle_t *hdl) | |
625 | { | |
fb5f0bc8 BB |
626 | assert(avl_numnodes(&hdl->libzfs_mnttab_cache) == 0); |
627 | avl_create(&hdl->libzfs_mnttab_cache, libzfs_mnttab_cache_compare, | |
628 | sizeof (mnttab_node_t), offsetof(mnttab_node_t, mtn_node)); | |
9babb374 BB |
629 | } |
630 | ||
631 | void | |
632 | libzfs_mnttab_update(libzfs_handle_t *hdl) | |
633 | { | |
634 | struct mnttab entry; | |
fb5f0bc8 BB |
635 | |
636 | rewind(hdl->libzfs_mnttab); | |
637 | while (getmntent(hdl->libzfs_mnttab, &entry) == 0) { | |
638 | mnttab_node_t *mtn; | |
639 | ||
640 | if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) | |
641 | continue; | |
642 | mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); | |
643 | mtn->mtn_mt.mnt_special = zfs_strdup(hdl, entry.mnt_special); | |
644 | mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, entry.mnt_mountp); | |
645 | mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, entry.mnt_fstype); | |
646 | mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, entry.mnt_mntopts); | |
647 | avl_add(&hdl->libzfs_mnttab_cache, mtn); | |
648 | } | |
649 | } | |
650 | ||
651 | void | |
652 | libzfs_mnttab_fini(libzfs_handle_t *hdl) | |
653 | { | |
654 | void *cookie = NULL; | |
655 | mnttab_node_t *mtn; | |
656 | ||
c65aa5b2 | 657 | while ((mtn = avl_destroy_nodes(&hdl->libzfs_mnttab_cache, &cookie))) { |
fb5f0bc8 BB |
658 | free(mtn->mtn_mt.mnt_special); |
659 | free(mtn->mtn_mt.mnt_mountp); | |
660 | free(mtn->mtn_mt.mnt_fstype); | |
661 | free(mtn->mtn_mt.mnt_mntopts); | |
662 | free(mtn); | |
663 | } | |
664 | avl_destroy(&hdl->libzfs_mnttab_cache); | |
665 | } | |
666 | ||
9babb374 BB |
667 | void |
668 | libzfs_mnttab_cache(libzfs_handle_t *hdl, boolean_t enable) | |
669 | { | |
670 | hdl->libzfs_mnttab_enable = enable; | |
671 | } | |
672 | ||
fb5f0bc8 BB |
673 | int |
674 | libzfs_mnttab_find(libzfs_handle_t *hdl, const char *fsname, | |
675 | struct mnttab *entry) | |
676 | { | |
677 | mnttab_node_t find; | |
678 | mnttab_node_t *mtn; | |
679 | ||
9babb374 BB |
680 | if (!hdl->libzfs_mnttab_enable) { |
681 | struct mnttab srch = { 0 }; | |
682 | ||
683 | if (avl_numnodes(&hdl->libzfs_mnttab_cache)) | |
684 | libzfs_mnttab_fini(hdl); | |
685 | rewind(hdl->libzfs_mnttab); | |
686 | srch.mnt_special = (char *)fsname; | |
687 | srch.mnt_fstype = MNTTYPE_ZFS; | |
688 | if (getmntany(hdl->libzfs_mnttab, entry, &srch) == 0) | |
689 | return (0); | |
690 | else | |
691 | return (ENOENT); | |
692 | } | |
693 | ||
fb5f0bc8 | 694 | if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) |
9babb374 | 695 | libzfs_mnttab_update(hdl); |
fb5f0bc8 BB |
696 | |
697 | find.mtn_mt.mnt_special = (char *)fsname; | |
698 | mtn = avl_find(&hdl->libzfs_mnttab_cache, &find, NULL); | |
699 | if (mtn) { | |
700 | *entry = mtn->mtn_mt; | |
701 | return (0); | |
702 | } | |
703 | return (ENOENT); | |
704 | } | |
705 | ||
706 | void | |
707 | libzfs_mnttab_add(libzfs_handle_t *hdl, const char *special, | |
708 | const char *mountp, const char *mntopts) | |
709 | { | |
710 | mnttab_node_t *mtn; | |
711 | ||
712 | if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) | |
713 | return; | |
714 | mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); | |
715 | mtn->mtn_mt.mnt_special = zfs_strdup(hdl, special); | |
716 | mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, mountp); | |
717 | mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, MNTTYPE_ZFS); | |
718 | mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, mntopts); | |
719 | avl_add(&hdl->libzfs_mnttab_cache, mtn); | |
720 | } | |
721 | ||
722 | void | |
723 | libzfs_mnttab_remove(libzfs_handle_t *hdl, const char *fsname) | |
724 | { | |
725 | mnttab_node_t find; | |
726 | mnttab_node_t *ret; | |
727 | ||
728 | find.mtn_mt.mnt_special = (char *)fsname; | |
c65aa5b2 | 729 | if ((ret = avl_find(&hdl->libzfs_mnttab_cache, (void *)&find, NULL))) { |
fb5f0bc8 BB |
730 | avl_remove(&hdl->libzfs_mnttab_cache, ret); |
731 | free(ret->mtn_mt.mnt_special); | |
732 | free(ret->mtn_mt.mnt_mountp); | |
733 | free(ret->mtn_mt.mnt_fstype); | |
734 | free(ret->mtn_mt.mnt_mntopts); | |
735 | free(ret); | |
736 | } | |
737 | } | |
738 | ||
34dc7c2f BB |
739 | int |
740 | zfs_spa_version(zfs_handle_t *zhp, int *spa_version) | |
741 | { | |
b128c09f | 742 | zpool_handle_t *zpool_handle = zhp->zpool_hdl; |
34dc7c2f | 743 | |
34dc7c2f BB |
744 | if (zpool_handle == NULL) |
745 | return (-1); | |
746 | ||
747 | *spa_version = zpool_get_prop_int(zpool_handle, | |
748 | ZPOOL_PROP_VERSION, NULL); | |
34dc7c2f BB |
749 | return (0); |
750 | } | |
751 | ||
752 | /* | |
753 | * The choice of reservation property depends on the SPA version. | |
754 | */ | |
755 | static int | |
756 | zfs_which_resv_prop(zfs_handle_t *zhp, zfs_prop_t *resv_prop) | |
757 | { | |
758 | int spa_version; | |
759 | ||
760 | if (zfs_spa_version(zhp, &spa_version) < 0) | |
761 | return (-1); | |
762 | ||
763 | if (spa_version >= SPA_VERSION_REFRESERVATION) | |
764 | *resv_prop = ZFS_PROP_REFRESERVATION; | |
765 | else | |
766 | *resv_prop = ZFS_PROP_RESERVATION; | |
767 | ||
768 | return (0); | |
769 | } | |
770 | ||
771 | /* | |
772 | * Given an nvlist of properties to set, validates that they are correct, and | |
773 | * parses any numeric properties (index, boolean, etc) if they are specified as | |
774 | * strings. | |
775 | */ | |
b128c09f BB |
776 | nvlist_t * |
777 | zfs_valid_proplist(libzfs_handle_t *hdl, zfs_type_t type, nvlist_t *nvl, | |
34dc7c2f BB |
778 | uint64_t zoned, zfs_handle_t *zhp, const char *errbuf) |
779 | { | |
780 | nvpair_t *elem; | |
781 | uint64_t intval; | |
782 | char *strval; | |
783 | zfs_prop_t prop; | |
784 | nvlist_t *ret; | |
785 | int chosen_normal = -1; | |
786 | int chosen_utf = -1; | |
787 | ||
34dc7c2f BB |
788 | if (nvlist_alloc(&ret, NV_UNIQUE_NAME, 0) != 0) { |
789 | (void) no_memory(hdl); | |
790 | return (NULL); | |
791 | } | |
792 | ||
9babb374 BB |
793 | /* |
794 | * Make sure this property is valid and applies to this type. | |
795 | */ | |
796 | ||
34dc7c2f BB |
797 | elem = NULL; |
798 | while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) { | |
799 | const char *propname = nvpair_name(elem); | |
800 | ||
9babb374 BB |
801 | prop = zfs_name_to_prop(propname); |
802 | if (prop == ZPROP_INVAL && zfs_prop_user(propname)) { | |
34dc7c2f | 803 | /* |
9babb374 | 804 | * This is a user property: make sure it's a |
34dc7c2f BB |
805 | * string, and that it's less than ZAP_MAXNAMELEN. |
806 | */ | |
807 | if (nvpair_type(elem) != DATA_TYPE_STRING) { | |
808 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
809 | "'%s' must be a string"), propname); | |
810 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
811 | goto error; | |
812 | } | |
813 | ||
814 | if (strlen(nvpair_name(elem)) >= ZAP_MAXNAMELEN) { | |
815 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
816 | "property name '%s' is too long"), | |
817 | propname); | |
818 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
819 | goto error; | |
820 | } | |
821 | ||
822 | (void) nvpair_value_string(elem, &strval); | |
823 | if (nvlist_add_string(ret, propname, strval) != 0) { | |
824 | (void) no_memory(hdl); | |
825 | goto error; | |
826 | } | |
827 | continue; | |
828 | } | |
829 | ||
9babb374 BB |
830 | /* |
831 | * Currently, only user properties can be modified on | |
832 | * snapshots. | |
833 | */ | |
b128c09f BB |
834 | if (type == ZFS_TYPE_SNAPSHOT) { |
835 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
836 | "this property can not be modified for snapshots")); | |
837 | (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); | |
838 | goto error; | |
839 | } | |
840 | ||
9babb374 BB |
841 | if (prop == ZPROP_INVAL && zfs_prop_userquota(propname)) { |
842 | zfs_userquota_prop_t uqtype; | |
843 | char newpropname[128]; | |
844 | char domain[128]; | |
845 | uint64_t rid; | |
846 | uint64_t valary[3]; | |
847 | ||
848 | if (userquota_propname_decode(propname, zoned, | |
849 | &uqtype, domain, sizeof (domain), &rid) != 0) { | |
850 | zfs_error_aux(hdl, | |
851 | dgettext(TEXT_DOMAIN, | |
852 | "'%s' has an invalid user/group name"), | |
853 | propname); | |
854 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
855 | goto error; | |
856 | } | |
857 | ||
858 | if (uqtype != ZFS_PROP_USERQUOTA && | |
859 | uqtype != ZFS_PROP_GROUPQUOTA) { | |
860 | zfs_error_aux(hdl, | |
861 | dgettext(TEXT_DOMAIN, "'%s' is readonly"), | |
862 | propname); | |
863 | (void) zfs_error(hdl, EZFS_PROPREADONLY, | |
864 | errbuf); | |
865 | goto error; | |
866 | } | |
867 | ||
868 | if (nvpair_type(elem) == DATA_TYPE_STRING) { | |
869 | (void) nvpair_value_string(elem, &strval); | |
870 | if (strcmp(strval, "none") == 0) { | |
871 | intval = 0; | |
872 | } else if (zfs_nicestrtonum(hdl, | |
873 | strval, &intval) != 0) { | |
874 | (void) zfs_error(hdl, | |
875 | EZFS_BADPROP, errbuf); | |
876 | goto error; | |
877 | } | |
878 | } else if (nvpair_type(elem) == | |
879 | DATA_TYPE_UINT64) { | |
880 | (void) nvpair_value_uint64(elem, &intval); | |
881 | if (intval == 0) { | |
882 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
883 | "use 'none' to disable " | |
884 | "userquota/groupquota")); | |
885 | goto error; | |
886 | } | |
887 | } else { | |
888 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
889 | "'%s' must be a number"), propname); | |
890 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
891 | goto error; | |
892 | } | |
893 | ||
428870ff BB |
894 | /* |
895 | * Encode the prop name as | |
896 | * userquota@<hex-rid>-domain, to make it easy | |
897 | * for the kernel to decode. | |
898 | */ | |
9babb374 | 899 | (void) snprintf(newpropname, sizeof (newpropname), |
428870ff BB |
900 | "%s%llx-%s", zfs_userquota_prop_prefixes[uqtype], |
901 | (longlong_t)rid, domain); | |
9babb374 BB |
902 | valary[0] = uqtype; |
903 | valary[1] = rid; | |
904 | valary[2] = intval; | |
905 | if (nvlist_add_uint64_array(ret, newpropname, | |
906 | valary, 3) != 0) { | |
907 | (void) no_memory(hdl); | |
908 | goto error; | |
909 | } | |
910 | continue; | |
330d06f9 MA |
911 | } else if (prop == ZPROP_INVAL && zfs_prop_written(propname)) { |
912 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
913 | "'%s' is readonly"), | |
914 | propname); | |
915 | (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); | |
916 | goto error; | |
9babb374 BB |
917 | } |
918 | ||
919 | if (prop == ZPROP_INVAL) { | |
920 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
921 | "invalid property '%s'"), propname); | |
922 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
923 | goto error; | |
924 | } | |
925 | ||
34dc7c2f BB |
926 | if (!zfs_prop_valid_for_type(prop, type)) { |
927 | zfs_error_aux(hdl, | |
928 | dgettext(TEXT_DOMAIN, "'%s' does not " | |
929 | "apply to datasets of this type"), propname); | |
930 | (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); | |
931 | goto error; | |
932 | } | |
933 | ||
934 | if (zfs_prop_readonly(prop) && | |
935 | (!zfs_prop_setonce(prop) || zhp != NULL)) { | |
936 | zfs_error_aux(hdl, | |
937 | dgettext(TEXT_DOMAIN, "'%s' is readonly"), | |
938 | propname); | |
939 | (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); | |
940 | goto error; | |
941 | } | |
942 | ||
943 | if (zprop_parse_value(hdl, elem, prop, type, ret, | |
944 | &strval, &intval, errbuf) != 0) | |
945 | goto error; | |
946 | ||
947 | /* | |
948 | * Perform some additional checks for specific properties. | |
949 | */ | |
950 | switch (prop) { | |
951 | case ZFS_PROP_VERSION: | |
952 | { | |
953 | int version; | |
954 | ||
955 | if (zhp == NULL) | |
956 | break; | |
957 | version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); | |
958 | if (intval < version) { | |
959 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
960 | "Can not downgrade; already at version %u"), | |
961 | version); | |
962 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
963 | goto error; | |
964 | } | |
965 | break; | |
966 | } | |
967 | ||
968 | case ZFS_PROP_RECORDSIZE: | |
969 | case ZFS_PROP_VOLBLOCKSIZE: | |
970 | /* must be power of two within SPA_{MIN,MAX}BLOCKSIZE */ | |
971 | if (intval < SPA_MINBLOCKSIZE || | |
972 | intval > SPA_MAXBLOCKSIZE || !ISP2(intval)) { | |
973 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
974 | "'%s' must be power of 2 from %u " | |
975 | "to %uk"), propname, | |
976 | (uint_t)SPA_MINBLOCKSIZE, | |
977 | (uint_t)SPA_MAXBLOCKSIZE >> 10); | |
978 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
979 | goto error; | |
980 | } | |
981 | break; | |
982 | ||
428870ff BB |
983 | case ZFS_PROP_MLSLABEL: |
984 | { | |
d2c15e84 | 985 | #ifdef HAVE_MLSLABEL |
428870ff BB |
986 | /* |
987 | * Verify the mlslabel string and convert to | |
988 | * internal hex label string. | |
989 | */ | |
990 | ||
991 | m_label_t *new_sl; | |
992 | char *hex = NULL; /* internal label string */ | |
993 | ||
994 | /* Default value is already OK. */ | |
995 | if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) | |
996 | break; | |
997 | ||
998 | /* Verify the label can be converted to binary form */ | |
999 | if (((new_sl = m_label_alloc(MAC_LABEL)) == NULL) || | |
1000 | (str_to_label(strval, &new_sl, MAC_LABEL, | |
1001 | L_NO_CORRECTION, NULL) == -1)) { | |
1002 | goto badlabel; | |
34dc7c2f BB |
1003 | } |
1004 | ||
428870ff BB |
1005 | /* Now translate to hex internal label string */ |
1006 | if (label_to_str(new_sl, &hex, M_INTERNAL, | |
1007 | DEF_NAMES) != 0) { | |
1008 | if (hex) | |
1009 | free(hex); | |
1010 | goto badlabel; | |
1011 | } | |
1012 | m_label_free(new_sl); | |
1013 | ||
1014 | /* If string is already in internal form, we're done. */ | |
1015 | if (strcmp(strval, hex) == 0) { | |
1016 | free(hex); | |
1017 | break; | |
1018 | } | |
1019 | ||
1020 | /* Replace the label string with the internal form. */ | |
1021 | (void) nvlist_remove(ret, zfs_prop_to_name(prop), | |
1022 | DATA_TYPE_STRING); | |
1023 | verify(nvlist_add_string(ret, zfs_prop_to_name(prop), | |
1024 | hex) == 0); | |
1025 | free(hex); | |
1026 | ||
34dc7c2f BB |
1027 | break; |
1028 | ||
428870ff BB |
1029 | badlabel: |
1030 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1031 | "invalid mlslabel '%s'"), strval); | |
1032 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1033 | m_label_free(new_sl); /* OK if null */ | |
1034 | goto error; | |
d2c15e84 BB |
1035 | #else |
1036 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1037 | "mlslabels are unsupported")); | |
1038 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1039 | goto error; | |
1040 | #endif /* HAVE_MLSLABEL */ | |
428870ff BB |
1041 | } |
1042 | ||
34dc7c2f BB |
1043 | case ZFS_PROP_MOUNTPOINT: |
1044 | { | |
1045 | namecheck_err_t why; | |
1046 | ||
1047 | if (strcmp(strval, ZFS_MOUNTPOINT_NONE) == 0 || | |
1048 | strcmp(strval, ZFS_MOUNTPOINT_LEGACY) == 0) | |
1049 | break; | |
1050 | ||
1051 | if (mountpoint_namecheck(strval, &why)) { | |
1052 | switch (why) { | |
1053 | case NAME_ERR_LEADING_SLASH: | |
1054 | zfs_error_aux(hdl, | |
1055 | dgettext(TEXT_DOMAIN, | |
1056 | "'%s' must be an absolute path, " | |
1057 | "'none', or 'legacy'"), propname); | |
1058 | break; | |
1059 | case NAME_ERR_TOOLONG: | |
1060 | zfs_error_aux(hdl, | |
1061 | dgettext(TEXT_DOMAIN, | |
1062 | "component of '%s' is too long"), | |
1063 | propname); | |
1064 | break; | |
e75c13c3 BB |
1065 | default: |
1066 | break; | |
34dc7c2f BB |
1067 | } |
1068 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1069 | goto error; | |
1070 | } | |
1071 | } | |
1072 | ||
1073 | /*FALLTHRU*/ | |
1074 | ||
1075 | case ZFS_PROP_SHARESMB: | |
1076 | case ZFS_PROP_SHARENFS: | |
1077 | /* | |
1078 | * For the mountpoint and sharenfs or sharesmb | |
1079 | * properties, check if it can be set in a | |
1080 | * global/non-global zone based on | |
1081 | * the zoned property value: | |
1082 | * | |
1083 | * global zone non-global zone | |
1084 | * -------------------------------------------------- | |
1085 | * zoned=on mountpoint (no) mountpoint (yes) | |
1086 | * sharenfs (no) sharenfs (no) | |
1087 | * sharesmb (no) sharesmb (no) | |
1088 | * | |
1089 | * zoned=off mountpoint (yes) N/A | |
1090 | * sharenfs (yes) | |
1091 | * sharesmb (yes) | |
1092 | */ | |
1093 | if (zoned) { | |
1094 | if (getzoneid() == GLOBAL_ZONEID) { | |
1095 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1096 | "'%s' cannot be set on " | |
1097 | "dataset in a non-global zone"), | |
1098 | propname); | |
1099 | (void) zfs_error(hdl, EZFS_ZONED, | |
1100 | errbuf); | |
1101 | goto error; | |
1102 | } else if (prop == ZFS_PROP_SHARENFS || | |
1103 | prop == ZFS_PROP_SHARESMB) { | |
1104 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1105 | "'%s' cannot be set in " | |
1106 | "a non-global zone"), propname); | |
1107 | (void) zfs_error(hdl, EZFS_ZONED, | |
1108 | errbuf); | |
1109 | goto error; | |
1110 | } | |
1111 | } else if (getzoneid() != GLOBAL_ZONEID) { | |
1112 | /* | |
1113 | * If zoned property is 'off', this must be in | |
9babb374 | 1114 | * a global zone. If not, something is wrong. |
34dc7c2f BB |
1115 | */ |
1116 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1117 | "'%s' cannot be set while dataset " | |
1118 | "'zoned' property is set"), propname); | |
1119 | (void) zfs_error(hdl, EZFS_ZONED, errbuf); | |
1120 | goto error; | |
1121 | } | |
1122 | ||
1123 | /* | |
1124 | * At this point, it is legitimate to set the | |
1125 | * property. Now we want to make sure that the | |
1126 | * property value is valid if it is sharenfs. | |
1127 | */ | |
1128 | if ((prop == ZFS_PROP_SHARENFS || | |
1129 | prop == ZFS_PROP_SHARESMB) && | |
1130 | strcmp(strval, "on") != 0 && | |
1131 | strcmp(strval, "off") != 0) { | |
1132 | zfs_share_proto_t proto; | |
1133 | ||
1134 | if (prop == ZFS_PROP_SHARESMB) | |
1135 | proto = PROTO_SMB; | |
1136 | else | |
1137 | proto = PROTO_NFS; | |
1138 | ||
1139 | /* | |
1140 | * Must be an valid sharing protocol | |
1141 | * option string so init the libshare | |
1142 | * in order to enable the parser and | |
1143 | * then parse the options. We use the | |
1144 | * control API since we don't care about | |
1145 | * the current configuration and don't | |
1146 | * want the overhead of loading it | |
1147 | * until we actually do something. | |
1148 | */ | |
1149 | ||
1150 | if (zfs_init_libshare(hdl, | |
1151 | SA_INIT_CONTROL_API) != SA_OK) { | |
1152 | /* | |
1153 | * An error occurred so we can't do | |
1154 | * anything | |
1155 | */ | |
1156 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1157 | "'%s' cannot be set: problem " | |
1158 | "in share initialization"), | |
1159 | propname); | |
1160 | (void) zfs_error(hdl, EZFS_BADPROP, | |
1161 | errbuf); | |
1162 | goto error; | |
1163 | } | |
1164 | ||
1165 | if (zfs_parse_options(strval, proto) != SA_OK) { | |
1166 | /* | |
1167 | * There was an error in parsing so | |
1168 | * deal with it by issuing an error | |
1169 | * message and leaving after | |
1170 | * uninitializing the the libshare | |
1171 | * interface. | |
1172 | */ | |
1173 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1174 | "'%s' cannot be set to invalid " | |
1175 | "options"), propname); | |
1176 | (void) zfs_error(hdl, EZFS_BADPROP, | |
1177 | errbuf); | |
1178 | zfs_uninit_libshare(hdl); | |
1179 | goto error; | |
1180 | } | |
1181 | zfs_uninit_libshare(hdl); | |
1182 | } | |
1183 | ||
1184 | break; | |
1185 | case ZFS_PROP_UTF8ONLY: | |
1186 | chosen_utf = (int)intval; | |
1187 | break; | |
1188 | case ZFS_PROP_NORMALIZE: | |
1189 | chosen_normal = (int)intval; | |
1190 | break; | |
e75c13c3 BB |
1191 | default: |
1192 | break; | |
34dc7c2f BB |
1193 | } |
1194 | ||
1195 | /* | |
1196 | * For changes to existing volumes, we have some additional | |
1197 | * checks to enforce. | |
1198 | */ | |
1199 | if (type == ZFS_TYPE_VOLUME && zhp != NULL) { | |
1200 | uint64_t volsize = zfs_prop_get_int(zhp, | |
1201 | ZFS_PROP_VOLSIZE); | |
1202 | uint64_t blocksize = zfs_prop_get_int(zhp, | |
1203 | ZFS_PROP_VOLBLOCKSIZE); | |
1204 | char buf[64]; | |
1205 | ||
1206 | switch (prop) { | |
1207 | case ZFS_PROP_RESERVATION: | |
1208 | case ZFS_PROP_REFRESERVATION: | |
1209 | if (intval > volsize) { | |
1210 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1211 | "'%s' is greater than current " | |
1212 | "volume size"), propname); | |
1213 | (void) zfs_error(hdl, EZFS_BADPROP, | |
1214 | errbuf); | |
1215 | goto error; | |
1216 | } | |
1217 | break; | |
1218 | ||
1219 | case ZFS_PROP_VOLSIZE: | |
1220 | if (intval % blocksize != 0) { | |
1221 | zfs_nicenum(blocksize, buf, | |
1222 | sizeof (buf)); | |
1223 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1224 | "'%s' must be a multiple of " | |
1225 | "volume block size (%s)"), | |
1226 | propname, buf); | |
1227 | (void) zfs_error(hdl, EZFS_BADPROP, | |
1228 | errbuf); | |
1229 | goto error; | |
1230 | } | |
1231 | ||
1232 | if (intval == 0) { | |
1233 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1234 | "'%s' cannot be zero"), | |
1235 | propname); | |
1236 | (void) zfs_error(hdl, EZFS_BADPROP, | |
1237 | errbuf); | |
1238 | goto error; | |
1239 | } | |
1240 | break; | |
e75c13c3 BB |
1241 | default: |
1242 | break; | |
34dc7c2f BB |
1243 | } |
1244 | } | |
1245 | } | |
1246 | ||
1247 | /* | |
1248 | * If normalization was chosen, but no UTF8 choice was made, | |
1249 | * enforce rejection of non-UTF8 names. | |
1250 | * | |
1251 | * If normalization was chosen, but rejecting non-UTF8 names | |
1252 | * was explicitly not chosen, it is an error. | |
1253 | */ | |
1254 | if (chosen_normal > 0 && chosen_utf < 0) { | |
1255 | if (nvlist_add_uint64(ret, | |
1256 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), 1) != 0) { | |
1257 | (void) no_memory(hdl); | |
1258 | goto error; | |
1259 | } | |
1260 | } else if (chosen_normal > 0 && chosen_utf == 0) { | |
1261 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1262 | "'%s' must be set 'on' if normalization chosen"), | |
1263 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); | |
1264 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1265 | goto error; | |
1266 | } | |
572e2857 BB |
1267 | return (ret); |
1268 | ||
1269 | error: | |
1270 | nvlist_free(ret); | |
1271 | return (NULL); | |
1272 | } | |
1273 | ||
1274 | int | |
1275 | zfs_add_synthetic_resv(zfs_handle_t *zhp, nvlist_t *nvl) | |
1276 | { | |
1277 | uint64_t old_volsize; | |
1278 | uint64_t new_volsize; | |
1279 | uint64_t old_reservation; | |
1280 | uint64_t new_reservation; | |
1281 | zfs_prop_t resv_prop; | |
34dc7c2f BB |
1282 | |
1283 | /* | |
1284 | * If this is an existing volume, and someone is setting the volsize, | |
1285 | * make sure that it matches the reservation, or add it if necessary. | |
1286 | */ | |
572e2857 BB |
1287 | old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); |
1288 | if (zfs_which_resv_prop(zhp, &resv_prop) < 0) | |
1289 | return (-1); | |
1290 | old_reservation = zfs_prop_get_int(zhp, resv_prop); | |
1291 | if ((zvol_volsize_to_reservation(old_volsize, zhp->zfs_props) != | |
1292 | old_reservation) || nvlist_lookup_uint64(nvl, | |
1293 | zfs_prop_to_name(resv_prop), &new_reservation) != ENOENT) { | |
1294 | return (0); | |
34dc7c2f | 1295 | } |
572e2857 BB |
1296 | if (nvlist_lookup_uint64(nvl, zfs_prop_to_name(ZFS_PROP_VOLSIZE), |
1297 | &new_volsize) != 0) | |
1298 | return (-1); | |
1299 | new_reservation = zvol_volsize_to_reservation(new_volsize, | |
1300 | zhp->zfs_props); | |
1301 | if (nvlist_add_uint64(nvl, zfs_prop_to_name(resv_prop), | |
1302 | new_reservation) != 0) { | |
1303 | (void) no_memory(zhp->zfs_hdl); | |
1304 | return (-1); | |
1305 | } | |
1306 | return (1); | |
34dc7c2f BB |
1307 | } |
1308 | ||
428870ff BB |
1309 | void |
1310 | zfs_setprop_error(libzfs_handle_t *hdl, zfs_prop_t prop, int err, | |
1311 | char *errbuf) | |
1312 | { | |
1313 | switch (err) { | |
1314 | ||
1315 | case ENOSPC: | |
1316 | /* | |
1317 | * For quotas and reservations, ENOSPC indicates | |
1318 | * something different; setting a quota or reservation | |
1319 | * doesn't use any disk space. | |
1320 | */ | |
1321 | switch (prop) { | |
1322 | case ZFS_PROP_QUOTA: | |
1323 | case ZFS_PROP_REFQUOTA: | |
1324 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1325 | "size is less than current used or " | |
1326 | "reserved space")); | |
1327 | (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); | |
1328 | break; | |
1329 | ||
1330 | case ZFS_PROP_RESERVATION: | |
1331 | case ZFS_PROP_REFRESERVATION: | |
1332 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1333 | "size is greater than available space")); | |
1334 | (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); | |
1335 | break; | |
1336 | ||
1337 | default: | |
1338 | (void) zfs_standard_error(hdl, err, errbuf); | |
1339 | break; | |
1340 | } | |
1341 | break; | |
1342 | ||
1343 | case EBUSY: | |
1344 | (void) zfs_standard_error(hdl, EBUSY, errbuf); | |
1345 | break; | |
1346 | ||
1347 | case EROFS: | |
1348 | (void) zfs_error(hdl, EZFS_DSREADONLY, errbuf); | |
1349 | break; | |
1350 | ||
1351 | case ENOTSUP: | |
1352 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1353 | "pool and or dataset must be upgraded to set this " | |
1354 | "property or value")); | |
1355 | (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); | |
1356 | break; | |
1357 | ||
1358 | case ERANGE: | |
1359 | if (prop == ZFS_PROP_COMPRESSION) { | |
1360 | (void) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1361 | "property setting is not allowed on " | |
1362 | "bootable datasets")); | |
1363 | (void) zfs_error(hdl, EZFS_NOTSUP, errbuf); | |
1364 | } else { | |
1365 | (void) zfs_standard_error(hdl, err, errbuf); | |
1366 | } | |
1367 | break; | |
1368 | ||
1369 | case EINVAL: | |
1370 | if (prop == ZPROP_INVAL) { | |
1371 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1372 | } else { | |
1373 | (void) zfs_standard_error(hdl, err, errbuf); | |
1374 | } | |
1375 | break; | |
1376 | ||
1377 | case EOVERFLOW: | |
1378 | /* | |
1379 | * This platform can't address a volume this big. | |
1380 | */ | |
1381 | #ifdef _ILP32 | |
1382 | if (prop == ZFS_PROP_VOLSIZE) { | |
1383 | (void) zfs_error(hdl, EZFS_VOLTOOBIG, errbuf); | |
1384 | break; | |
1385 | } | |
1386 | #endif | |
1387 | /* FALLTHROUGH */ | |
1388 | default: | |
1389 | (void) zfs_standard_error(hdl, err, errbuf); | |
1390 | } | |
1391 | } | |
1392 | ||
2cf7f52b BB |
1393 | static boolean_t |
1394 | zfs_is_namespace_prop(zfs_prop_t prop) | |
1395 | { | |
1396 | switch (prop) { | |
1397 | ||
1398 | case ZFS_PROP_ATIME: | |
1399 | case ZFS_PROP_DEVICES: | |
1400 | case ZFS_PROP_EXEC: | |
1401 | case ZFS_PROP_SETUID: | |
1402 | case ZFS_PROP_READONLY: | |
1403 | case ZFS_PROP_XATTR: | |
1404 | case ZFS_PROP_NBMAND: | |
1405 | return (B_TRUE); | |
1406 | ||
1407 | default: | |
1408 | return (B_FALSE); | |
1409 | } | |
1410 | } | |
1411 | ||
34dc7c2f BB |
1412 | /* |
1413 | * Given a property name and value, set the property for the given dataset. | |
1414 | */ | |
1415 | int | |
1416 | zfs_prop_set(zfs_handle_t *zhp, const char *propname, const char *propval) | |
1417 | { | |
2598c001 | 1418 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
1419 | int ret = -1; |
1420 | prop_changelist_t *cl = NULL; | |
1421 | char errbuf[1024]; | |
1422 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
1423 | nvlist_t *nvl = NULL, *realprops; | |
1424 | zfs_prop_t prop; | |
b128c09f BB |
1425 | boolean_t do_prefix; |
1426 | uint64_t idx; | |
d4ed6673 | 1427 | int added_resv = 0; |
34dc7c2f BB |
1428 | |
1429 | (void) snprintf(errbuf, sizeof (errbuf), | |
1430 | dgettext(TEXT_DOMAIN, "cannot set property for '%s'"), | |
1431 | zhp->zfs_name); | |
1432 | ||
1433 | if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0 || | |
1434 | nvlist_add_string(nvl, propname, propval) != 0) { | |
1435 | (void) no_memory(hdl); | |
1436 | goto error; | |
1437 | } | |
1438 | ||
b128c09f | 1439 | if ((realprops = zfs_valid_proplist(hdl, zhp->zfs_type, nvl, |
34dc7c2f BB |
1440 | zfs_prop_get_int(zhp, ZFS_PROP_ZONED), zhp, errbuf)) == NULL) |
1441 | goto error; | |
1442 | ||
1443 | nvlist_free(nvl); | |
1444 | nvl = realprops; | |
1445 | ||
1446 | prop = zfs_name_to_prop(propname); | |
1447 | ||
572e2857 BB |
1448 | if (prop == ZFS_PROP_VOLSIZE) { |
1449 | if ((added_resv = zfs_add_synthetic_resv(zhp, nvl)) == -1) | |
1450 | goto error; | |
1451 | } | |
1452 | ||
b128c09f | 1453 | if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL) |
34dc7c2f BB |
1454 | goto error; |
1455 | ||
1456 | if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) { | |
1457 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1458 | "child dataset with inherited mountpoint is used " | |
1459 | "in a non-global zone")); | |
1460 | ret = zfs_error(hdl, EZFS_ZONED, errbuf); | |
1461 | goto error; | |
1462 | } | |
1463 | ||
b128c09f BB |
1464 | /* |
1465 | * If the dataset's canmount property is being set to noauto, | |
1466 | * then we want to prevent unmounting & remounting it. | |
1467 | */ | |
1468 | do_prefix = !((prop == ZFS_PROP_CANMOUNT) && | |
1469 | (zprop_string_to_index(prop, propval, &idx, | |
1470 | ZFS_TYPE_DATASET) == 0) && (idx == ZFS_CANMOUNT_NOAUTO)); | |
34dc7c2f BB |
1471 | |
1472 | if (do_prefix && (ret = changelist_prefix(cl)) != 0) | |
b128c09f | 1473 | goto error; |
34dc7c2f BB |
1474 | |
1475 | /* | |
1476 | * Execute the corresponding ioctl() to set this property. | |
1477 | */ | |
1478 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
1479 | ||
1480 | if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0) | |
1481 | goto error; | |
1482 | ||
1483 | ret = zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); | |
9babb374 | 1484 | |
34dc7c2f | 1485 | if (ret != 0) { |
428870ff | 1486 | zfs_setprop_error(hdl, prop, errno, errbuf); |
572e2857 BB |
1487 | if (added_resv && errno == ENOSPC) { |
1488 | /* clean up the volsize property we tried to set */ | |
1489 | uint64_t old_volsize = zfs_prop_get_int(zhp, | |
1490 | ZFS_PROP_VOLSIZE); | |
1491 | nvlist_free(nvl); | |
1492 | zcmd_free_nvlists(&zc); | |
1493 | if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) | |
1494 | goto error; | |
1495 | if (nvlist_add_uint64(nvl, | |
1496 | zfs_prop_to_name(ZFS_PROP_VOLSIZE), | |
1497 | old_volsize) != 0) | |
1498 | goto error; | |
1499 | if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0) | |
1500 | goto error; | |
1501 | (void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); | |
1502 | } | |
34dc7c2f BB |
1503 | } else { |
1504 | if (do_prefix) | |
1505 | ret = changelist_postfix(cl); | |
1506 | ||
2cf7f52b BB |
1507 | if (ret == 0) { |
1508 | /* | |
1509 | * Refresh the statistics so the new property | |
1510 | * value is reflected. | |
1511 | */ | |
34dc7c2f | 1512 | (void) get_stats(zhp); |
2cf7f52b BB |
1513 | |
1514 | /* | |
1515 | * Remount the filesystem to propagate the change | |
1516 | * if one of the options handled by the generic | |
1517 | * Linux namespace layer has been modified. | |
1518 | */ | |
1519 | if (zfs_is_namespace_prop(prop) && | |
1520 | zfs_is_mounted(zhp, NULL)) | |
1521 | ret = zfs_mount(zhp, MNTOPT_REMOUNT, 0); | |
1522 | } | |
34dc7c2f BB |
1523 | } |
1524 | ||
1525 | error: | |
1526 | nvlist_free(nvl); | |
1527 | zcmd_free_nvlists(&zc); | |
1528 | if (cl) | |
1529 | changelist_free(cl); | |
1530 | return (ret); | |
1531 | } | |
1532 | ||
1533 | /* | |
428870ff BB |
1534 | * Given a property, inherit the value from the parent dataset, or if received |
1535 | * is TRUE, revert to the received value, if any. | |
34dc7c2f BB |
1536 | */ |
1537 | int | |
428870ff | 1538 | zfs_prop_inherit(zfs_handle_t *zhp, const char *propname, boolean_t received) |
34dc7c2f | 1539 | { |
2598c001 | 1540 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
1541 | int ret; |
1542 | prop_changelist_t *cl; | |
1543 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
1544 | char errbuf[1024]; | |
1545 | zfs_prop_t prop; | |
1546 | ||
1547 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
1548 | "cannot inherit %s for '%s'"), propname, zhp->zfs_name); | |
1549 | ||
428870ff | 1550 | zc.zc_cookie = received; |
34dc7c2f BB |
1551 | if ((prop = zfs_name_to_prop(propname)) == ZPROP_INVAL) { |
1552 | /* | |
1553 | * For user properties, the amount of work we have to do is very | |
1554 | * small, so just do it here. | |
1555 | */ | |
1556 | if (!zfs_prop_user(propname)) { | |
1557 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1558 | "invalid property")); | |
1559 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
1560 | } | |
1561 | ||
1562 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
1563 | (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); | |
1564 | ||
1565 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc) != 0) | |
1566 | return (zfs_standard_error(hdl, errno, errbuf)); | |
1567 | ||
1568 | return (0); | |
1569 | } | |
1570 | ||
1571 | /* | |
1572 | * Verify that this property is inheritable. | |
1573 | */ | |
1574 | if (zfs_prop_readonly(prop)) | |
1575 | return (zfs_error(hdl, EZFS_PROPREADONLY, errbuf)); | |
1576 | ||
428870ff | 1577 | if (!zfs_prop_inheritable(prop) && !received) |
34dc7c2f BB |
1578 | return (zfs_error(hdl, EZFS_PROPNONINHERIT, errbuf)); |
1579 | ||
1580 | /* | |
1581 | * Check to see if the value applies to this type | |
1582 | */ | |
1583 | if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) | |
1584 | return (zfs_error(hdl, EZFS_PROPTYPE, errbuf)); | |
1585 | ||
1586 | /* | |
572e2857 | 1587 | * Normalize the name, to get rid of shorthand abbreviations. |
34dc7c2f BB |
1588 | */ |
1589 | propname = zfs_prop_to_name(prop); | |
1590 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
1591 | (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); | |
1592 | ||
1593 | if (prop == ZFS_PROP_MOUNTPOINT && getzoneid() == GLOBAL_ZONEID && | |
1594 | zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { | |
1595 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1596 | "dataset is used in a non-global zone")); | |
1597 | return (zfs_error(hdl, EZFS_ZONED, errbuf)); | |
1598 | } | |
1599 | ||
1600 | /* | |
1601 | * Determine datasets which will be affected by this change, if any. | |
1602 | */ | |
b128c09f | 1603 | if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL) |
34dc7c2f BB |
1604 | return (-1); |
1605 | ||
1606 | if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) { | |
1607 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1608 | "child dataset with inherited mountpoint is used " | |
1609 | "in a non-global zone")); | |
1610 | ret = zfs_error(hdl, EZFS_ZONED, errbuf); | |
1611 | goto error; | |
1612 | } | |
1613 | ||
1614 | if ((ret = changelist_prefix(cl)) != 0) | |
1615 | goto error; | |
1616 | ||
1617 | if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc)) != 0) { | |
1618 | return (zfs_standard_error(hdl, errno, errbuf)); | |
1619 | } else { | |
1620 | ||
1621 | if ((ret = changelist_postfix(cl)) != 0) | |
1622 | goto error; | |
1623 | ||
1624 | /* | |
1625 | * Refresh the statistics so the new property is reflected. | |
1626 | */ | |
1627 | (void) get_stats(zhp); | |
1628 | } | |
1629 | ||
1630 | error: | |
1631 | changelist_free(cl); | |
1632 | return (ret); | |
1633 | } | |
1634 | ||
1635 | /* | |
1636 | * True DSL properties are stored in an nvlist. The following two functions | |
1637 | * extract them appropriately. | |
1638 | */ | |
2cf7f52b | 1639 | uint64_t |
34dc7c2f BB |
1640 | getprop_uint64(zfs_handle_t *zhp, zfs_prop_t prop, char **source) |
1641 | { | |
1642 | nvlist_t *nv; | |
1643 | uint64_t value; | |
1644 | ||
1645 | *source = NULL; | |
1646 | if (nvlist_lookup_nvlist(zhp->zfs_props, | |
1647 | zfs_prop_to_name(prop), &nv) == 0) { | |
1648 | verify(nvlist_lookup_uint64(nv, ZPROP_VALUE, &value) == 0); | |
1649 | (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); | |
1650 | } else { | |
9babb374 BB |
1651 | verify(!zhp->zfs_props_table || |
1652 | zhp->zfs_props_table[prop] == B_TRUE); | |
34dc7c2f BB |
1653 | value = zfs_prop_default_numeric(prop); |
1654 | *source = ""; | |
1655 | } | |
1656 | ||
1657 | return (value); | |
1658 | } | |
1659 | ||
1660 | static char * | |
1661 | getprop_string(zfs_handle_t *zhp, zfs_prop_t prop, char **source) | |
1662 | { | |
1663 | nvlist_t *nv; | |
1664 | char *value; | |
1665 | ||
1666 | *source = NULL; | |
1667 | if (nvlist_lookup_nvlist(zhp->zfs_props, | |
1668 | zfs_prop_to_name(prop), &nv) == 0) { | |
1669 | verify(nvlist_lookup_string(nv, ZPROP_VALUE, &value) == 0); | |
1670 | (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); | |
1671 | } else { | |
9babb374 BB |
1672 | verify(!zhp->zfs_props_table || |
1673 | zhp->zfs_props_table[prop] == B_TRUE); | |
34dc7c2f BB |
1674 | if ((value = (char *)zfs_prop_default_string(prop)) == NULL) |
1675 | value = ""; | |
1676 | *source = ""; | |
1677 | } | |
1678 | ||
1679 | return (value); | |
1680 | } | |
1681 | ||
428870ff BB |
1682 | static boolean_t |
1683 | zfs_is_recvd_props_mode(zfs_handle_t *zhp) | |
1684 | { | |
1685 | return (zhp->zfs_props == zhp->zfs_recvd_props); | |
1686 | } | |
1687 | ||
1688 | static void | |
1689 | zfs_set_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) | |
1690 | { | |
1691 | *cookie = (uint64_t)(uintptr_t)zhp->zfs_props; | |
1692 | zhp->zfs_props = zhp->zfs_recvd_props; | |
1693 | } | |
1694 | ||
1695 | static void | |
1696 | zfs_unset_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) | |
1697 | { | |
1698 | zhp->zfs_props = (nvlist_t *)(uintptr_t)*cookie; | |
1699 | *cookie = 0; | |
1700 | } | |
1701 | ||
34dc7c2f BB |
1702 | /* |
1703 | * Internal function for getting a numeric property. Both zfs_prop_get() and | |
1704 | * zfs_prop_get_int() are built using this interface. | |
1705 | * | |
1706 | * Certain properties can be overridden using 'mount -o'. In this case, scan | |
9a616b5d | 1707 | * the contents of the /etc/mtab entry, searching for the appropriate options. |
34dc7c2f BB |
1708 | * If they differ from the on-disk values, report the current values and mark |
1709 | * the source "temporary". | |
1710 | */ | |
1711 | static int | |
1712 | get_numeric_property(zfs_handle_t *zhp, zfs_prop_t prop, zprop_source_t *src, | |
1713 | char **source, uint64_t *val) | |
1714 | { | |
2598c001 | 1715 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
1716 | nvlist_t *zplprops = NULL; |
1717 | struct mnttab mnt; | |
1718 | char *mntopt_on = NULL; | |
1719 | char *mntopt_off = NULL; | |
428870ff | 1720 | boolean_t received = zfs_is_recvd_props_mode(zhp); |
34dc7c2f BB |
1721 | |
1722 | *source = NULL; | |
1723 | ||
1724 | switch (prop) { | |
1725 | case ZFS_PROP_ATIME: | |
1726 | mntopt_on = MNTOPT_ATIME; | |
1727 | mntopt_off = MNTOPT_NOATIME; | |
1728 | break; | |
1729 | ||
1730 | case ZFS_PROP_DEVICES: | |
1731 | mntopt_on = MNTOPT_DEVICES; | |
1732 | mntopt_off = MNTOPT_NODEVICES; | |
1733 | break; | |
1734 | ||
1735 | case ZFS_PROP_EXEC: | |
1736 | mntopt_on = MNTOPT_EXEC; | |
1737 | mntopt_off = MNTOPT_NOEXEC; | |
1738 | break; | |
1739 | ||
1740 | case ZFS_PROP_READONLY: | |
1741 | mntopt_on = MNTOPT_RO; | |
1742 | mntopt_off = MNTOPT_RW; | |
1743 | break; | |
1744 | ||
1745 | case ZFS_PROP_SETUID: | |
1746 | mntopt_on = MNTOPT_SETUID; | |
1747 | mntopt_off = MNTOPT_NOSETUID; | |
1748 | break; | |
1749 | ||
1750 | case ZFS_PROP_XATTR: | |
1751 | mntopt_on = MNTOPT_XATTR; | |
1752 | mntopt_off = MNTOPT_NOXATTR; | |
1753 | break; | |
1754 | ||
1755 | case ZFS_PROP_NBMAND: | |
1756 | mntopt_on = MNTOPT_NBMAND; | |
1757 | mntopt_off = MNTOPT_NONBMAND; | |
1758 | break; | |
e75c13c3 BB |
1759 | default: |
1760 | break; | |
34dc7c2f BB |
1761 | } |
1762 | ||
1763 | /* | |
1764 | * Because looking up the mount options is potentially expensive | |
9a616b5d | 1765 | * (iterating over all of /etc/mtab), we defer its calculation until |
34dc7c2f BB |
1766 | * we're looking up a property which requires its presence. |
1767 | */ | |
1768 | if (!zhp->zfs_mntcheck && | |
1769 | (mntopt_on != NULL || prop == ZFS_PROP_MOUNTED)) { | |
fb5f0bc8 BB |
1770 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
1771 | struct mnttab entry; | |
34dc7c2f | 1772 | |
fb5f0bc8 BB |
1773 | if (libzfs_mnttab_find(hdl, zhp->zfs_name, &entry) == 0) { |
1774 | zhp->zfs_mntopts = zfs_strdup(hdl, | |
34dc7c2f BB |
1775 | entry.mnt_mntopts); |
1776 | if (zhp->zfs_mntopts == NULL) | |
1777 | return (-1); | |
1778 | } | |
1779 | ||
1780 | zhp->zfs_mntcheck = B_TRUE; | |
1781 | } | |
1782 | ||
1783 | if (zhp->zfs_mntopts == NULL) | |
1784 | mnt.mnt_mntopts = ""; | |
1785 | else | |
1786 | mnt.mnt_mntopts = zhp->zfs_mntopts; | |
1787 | ||
1788 | switch (prop) { | |
1789 | case ZFS_PROP_ATIME: | |
1790 | case ZFS_PROP_DEVICES: | |
1791 | case ZFS_PROP_EXEC: | |
1792 | case ZFS_PROP_READONLY: | |
1793 | case ZFS_PROP_SETUID: | |
1794 | case ZFS_PROP_XATTR: | |
1795 | case ZFS_PROP_NBMAND: | |
1796 | *val = getprop_uint64(zhp, prop, source); | |
1797 | ||
428870ff BB |
1798 | if (received) |
1799 | break; | |
1800 | ||
34dc7c2f BB |
1801 | if (hasmntopt(&mnt, mntopt_on) && !*val) { |
1802 | *val = B_TRUE; | |
1803 | if (src) | |
1804 | *src = ZPROP_SRC_TEMPORARY; | |
1805 | } else if (hasmntopt(&mnt, mntopt_off) && *val) { | |
1806 | *val = B_FALSE; | |
1807 | if (src) | |
1808 | *src = ZPROP_SRC_TEMPORARY; | |
1809 | } | |
1810 | break; | |
1811 | ||
1812 | case ZFS_PROP_CANMOUNT: | |
428870ff | 1813 | case ZFS_PROP_VOLSIZE: |
34dc7c2f BB |
1814 | case ZFS_PROP_QUOTA: |
1815 | case ZFS_PROP_REFQUOTA: | |
1816 | case ZFS_PROP_RESERVATION: | |
1817 | case ZFS_PROP_REFRESERVATION: | |
1818 | *val = getprop_uint64(zhp, prop, source); | |
428870ff BB |
1819 | |
1820 | if (*source == NULL) { | |
1821 | /* not default, must be local */ | |
34dc7c2f | 1822 | *source = zhp->zfs_name; |
428870ff | 1823 | } |
34dc7c2f BB |
1824 | break; |
1825 | ||
1826 | case ZFS_PROP_MOUNTED: | |
1827 | *val = (zhp->zfs_mntopts != NULL); | |
1828 | break; | |
1829 | ||
1830 | case ZFS_PROP_NUMCLONES: | |
1831 | *val = zhp->zfs_dmustats.dds_num_clones; | |
1832 | break; | |
1833 | ||
1834 | case ZFS_PROP_VERSION: | |
1835 | case ZFS_PROP_NORMALIZE: | |
1836 | case ZFS_PROP_UTF8ONLY: | |
1837 | case ZFS_PROP_CASE: | |
1838 | if (!zfs_prop_valid_for_type(prop, zhp->zfs_head_type) || | |
1839 | zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) | |
1840 | return (-1); | |
1841 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
1842 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_OBJSET_ZPLPROPS, &zc)) { | |
1843 | zcmd_free_nvlists(&zc); | |
45d1cae3 | 1844 | return (-1); |
34dc7c2f BB |
1845 | } |
1846 | if (zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &zplprops) != 0 || | |
1847 | nvlist_lookup_uint64(zplprops, zfs_prop_to_name(prop), | |
1848 | val) != 0) { | |
1849 | zcmd_free_nvlists(&zc); | |
45d1cae3 | 1850 | return (-1); |
34dc7c2f BB |
1851 | } |
1852 | if (zplprops) | |
1853 | nvlist_free(zplprops); | |
1854 | zcmd_free_nvlists(&zc); | |
1855 | break; | |
1856 | ||
1857 | default: | |
1858 | switch (zfs_prop_get_type(prop)) { | |
1859 | case PROP_TYPE_NUMBER: | |
1860 | case PROP_TYPE_INDEX: | |
1861 | *val = getprop_uint64(zhp, prop, source); | |
b128c09f | 1862 | /* |
9babb374 | 1863 | * If we tried to use a default value for a |
b128c09f | 1864 | * readonly property, it means that it was not |
428870ff | 1865 | * present. |
b128c09f BB |
1866 | */ |
1867 | if (zfs_prop_readonly(prop) && | |
428870ff BB |
1868 | *source != NULL && (*source)[0] == '\0') { |
1869 | *source = NULL; | |
b128c09f | 1870 | } |
34dc7c2f BB |
1871 | break; |
1872 | ||
1873 | case PROP_TYPE_STRING: | |
1874 | default: | |
1875 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
1876 | "cannot get non-numeric property")); | |
1877 | return (zfs_error(zhp->zfs_hdl, EZFS_BADPROP, | |
1878 | dgettext(TEXT_DOMAIN, "internal error"))); | |
1879 | } | |
1880 | } | |
1881 | ||
1882 | return (0); | |
1883 | } | |
1884 | ||
1885 | /* | |
1886 | * Calculate the source type, given the raw source string. | |
1887 | */ | |
1888 | static void | |
1889 | get_source(zfs_handle_t *zhp, zprop_source_t *srctype, char *source, | |
1890 | char *statbuf, size_t statlen) | |
1891 | { | |
1892 | if (statbuf == NULL || *srctype == ZPROP_SRC_TEMPORARY) | |
1893 | return; | |
1894 | ||
1895 | if (source == NULL) { | |
1896 | *srctype = ZPROP_SRC_NONE; | |
1897 | } else if (source[0] == '\0') { | |
1898 | *srctype = ZPROP_SRC_DEFAULT; | |
428870ff BB |
1899 | } else if (strstr(source, ZPROP_SOURCE_VAL_RECVD) != NULL) { |
1900 | *srctype = ZPROP_SRC_RECEIVED; | |
34dc7c2f BB |
1901 | } else { |
1902 | if (strcmp(source, zhp->zfs_name) == 0) { | |
1903 | *srctype = ZPROP_SRC_LOCAL; | |
1904 | } else { | |
1905 | (void) strlcpy(statbuf, source, statlen); | |
1906 | *srctype = ZPROP_SRC_INHERITED; | |
1907 | } | |
1908 | } | |
1909 | ||
1910 | } | |
1911 | ||
428870ff BB |
1912 | int |
1913 | zfs_prop_get_recvd(zfs_handle_t *zhp, const char *propname, char *propbuf, | |
1914 | size_t proplen, boolean_t literal) | |
1915 | { | |
1916 | zfs_prop_t prop; | |
1917 | int err = 0; | |
1918 | ||
1919 | if (zhp->zfs_recvd_props == NULL) | |
1920 | if (get_recvd_props_ioctl(zhp) != 0) | |
1921 | return (-1); | |
1922 | ||
1923 | prop = zfs_name_to_prop(propname); | |
1924 | ||
1925 | if (prop != ZPROP_INVAL) { | |
1926 | uint64_t cookie; | |
1927 | if (!nvlist_exists(zhp->zfs_recvd_props, propname)) | |
1928 | return (-1); | |
1929 | zfs_set_recvd_props_mode(zhp, &cookie); | |
1930 | err = zfs_prop_get(zhp, prop, propbuf, proplen, | |
1931 | NULL, NULL, 0, literal); | |
1932 | zfs_unset_recvd_props_mode(zhp, &cookie); | |
428870ff BB |
1933 | } else { |
1934 | nvlist_t *propval; | |
1935 | char *recvdval; | |
1936 | if (nvlist_lookup_nvlist(zhp->zfs_recvd_props, | |
1937 | propname, &propval) != 0) | |
1938 | return (-1); | |
1939 | verify(nvlist_lookup_string(propval, ZPROP_VALUE, | |
1940 | &recvdval) == 0); | |
1941 | (void) strlcpy(propbuf, recvdval, proplen); | |
1942 | } | |
1943 | ||
1944 | return (err == 0 ? 0 : -1); | |
1945 | } | |
1946 | ||
330d06f9 MA |
1947 | static int |
1948 | get_clones_string(zfs_handle_t *zhp, char *propbuf, size_t proplen) | |
1949 | { | |
1950 | nvlist_t *value; | |
1951 | nvpair_t *pair; | |
1952 | ||
1953 | value = zfs_get_clones_nvl(zhp); | |
1954 | if (value == NULL) | |
1955 | return (-1); | |
1956 | ||
1957 | propbuf[0] = '\0'; | |
1958 | for (pair = nvlist_next_nvpair(value, NULL); pair != NULL; | |
1959 | pair = nvlist_next_nvpair(value, pair)) { | |
1960 | if (propbuf[0] != '\0') | |
1961 | (void) strlcat(propbuf, ",", proplen); | |
1962 | (void) strlcat(propbuf, nvpair_name(pair), proplen); | |
1963 | } | |
1964 | ||
1965 | return (0); | |
1966 | } | |
1967 | ||
1968 | struct get_clones_arg { | |
1969 | uint64_t numclones; | |
1970 | nvlist_t *value; | |
1971 | const char *origin; | |
1972 | char buf[ZFS_MAXNAMELEN]; | |
1973 | }; | |
1974 | ||
1975 | int | |
1976 | get_clones_cb(zfs_handle_t *zhp, void *arg) | |
1977 | { | |
1978 | struct get_clones_arg *gca = arg; | |
1979 | ||
1980 | if (gca->numclones == 0) { | |
1981 | zfs_close(zhp); | |
1982 | return (0); | |
1983 | } | |
1984 | ||
1985 | if (zfs_prop_get(zhp, ZFS_PROP_ORIGIN, gca->buf, sizeof (gca->buf), | |
1986 | NULL, NULL, 0, B_TRUE) != 0) | |
1987 | goto out; | |
1988 | if (strcmp(gca->buf, gca->origin) == 0) { | |
1989 | if (nvlist_add_boolean(gca->value, zfs_get_name(zhp)) != 0) { | |
1990 | zfs_close(zhp); | |
1991 | return (no_memory(zhp->zfs_hdl)); | |
1992 | } | |
1993 | gca->numclones--; | |
1994 | } | |
1995 | ||
1996 | out: | |
1997 | (void) zfs_iter_children(zhp, get_clones_cb, gca); | |
1998 | zfs_close(zhp); | |
1999 | return (0); | |
2000 | } | |
2001 | ||
2002 | nvlist_t * | |
2003 | zfs_get_clones_nvl(zfs_handle_t *zhp) | |
2004 | { | |
2005 | nvlist_t *nv, *value; | |
2006 | ||
2007 | if (nvlist_lookup_nvlist(zhp->zfs_props, | |
2008 | zfs_prop_to_name(ZFS_PROP_CLONES), &nv) != 0) { | |
2009 | struct get_clones_arg gca; | |
2010 | ||
2011 | /* | |
2012 | * if this is a snapshot, then the kernel wasn't able | |
2013 | * to get the clones. Do it by slowly iterating. | |
2014 | */ | |
2015 | if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT) | |
2016 | return (NULL); | |
2017 | if (nvlist_alloc(&nv, NV_UNIQUE_NAME, 0) != 0) | |
2018 | return (NULL); | |
2019 | if (nvlist_alloc(&value, NV_UNIQUE_NAME, 0) != 0) { | |
2020 | nvlist_free(nv); | |
2021 | return (NULL); | |
2022 | } | |
2023 | ||
2024 | gca.numclones = zfs_prop_get_int(zhp, ZFS_PROP_NUMCLONES); | |
2025 | gca.value = value; | |
2026 | gca.origin = zhp->zfs_name; | |
2027 | ||
2028 | if (gca.numclones != 0) { | |
2029 | zfs_handle_t *root; | |
2030 | char pool[ZFS_MAXNAMELEN]; | |
2031 | char *cp = pool; | |
2032 | ||
2033 | /* get the pool name */ | |
2034 | (void) strlcpy(pool, zhp->zfs_name, sizeof (pool)); | |
2035 | (void) strsep(&cp, "/@"); | |
2036 | root = zfs_open(zhp->zfs_hdl, pool, | |
2037 | ZFS_TYPE_FILESYSTEM); | |
2038 | ||
2039 | (void) get_clones_cb(root, &gca); | |
2040 | } | |
2041 | ||
2042 | if (gca.numclones != 0 || | |
2043 | nvlist_add_nvlist(nv, ZPROP_VALUE, value) != 0 || | |
2044 | nvlist_add_nvlist(zhp->zfs_props, | |
2045 | zfs_prop_to_name(ZFS_PROP_CLONES), nv) != 0) { | |
2046 | nvlist_free(nv); | |
2047 | nvlist_free(value); | |
2048 | return (NULL); | |
2049 | } | |
2050 | nvlist_free(nv); | |
2051 | nvlist_free(value); | |
2052 | verify(0 == nvlist_lookup_nvlist(zhp->zfs_props, | |
2053 | zfs_prop_to_name(ZFS_PROP_CLONES), &nv)); | |
2054 | } | |
2055 | ||
2056 | verify(nvlist_lookup_nvlist(nv, ZPROP_VALUE, &value) == 0); | |
2057 | ||
2058 | return (value); | |
2059 | } | |
2060 | ||
34dc7c2f BB |
2061 | /* |
2062 | * Retrieve a property from the given object. If 'literal' is specified, then | |
2063 | * numbers are left as exact values. Otherwise, numbers are converted to a | |
2064 | * human-readable form. | |
2065 | * | |
2066 | * Returns 0 on success, or -1 on error. | |
2067 | */ | |
2068 | int | |
2069 | zfs_prop_get(zfs_handle_t *zhp, zfs_prop_t prop, char *propbuf, size_t proplen, | |
2070 | zprop_source_t *src, char *statbuf, size_t statlen, boolean_t literal) | |
2071 | { | |
2072 | char *source = NULL; | |
2073 | uint64_t val; | |
2074 | char *str; | |
34dc7c2f | 2075 | const char *strval; |
428870ff | 2076 | boolean_t received = zfs_is_recvd_props_mode(zhp); |
34dc7c2f BB |
2077 | |
2078 | /* | |
2079 | * Check to see if this property applies to our object | |
2080 | */ | |
2081 | if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) | |
2082 | return (-1); | |
2083 | ||
428870ff BB |
2084 | if (received && zfs_prop_readonly(prop)) |
2085 | return (-1); | |
2086 | ||
34dc7c2f BB |
2087 | if (src) |
2088 | *src = ZPROP_SRC_NONE; | |
2089 | ||
2090 | switch (prop) { | |
2091 | case ZFS_PROP_CREATION: | |
2092 | /* | |
2093 | * 'creation' is a time_t stored in the statistics. We convert | |
2094 | * this into a string unless 'literal' is specified. | |
2095 | */ | |
2096 | { | |
2097 | val = getprop_uint64(zhp, prop, &source); | |
2098 | time_t time = (time_t)val; | |
2099 | struct tm t; | |
2100 | ||
2101 | if (literal || | |
2102 | localtime_r(&time, &t) == NULL || | |
2103 | strftime(propbuf, proplen, "%a %b %e %k:%M %Y", | |
2104 | &t) == 0) | |
b8864a23 | 2105 | (void) snprintf(propbuf, proplen, "%llu", (u_longlong_t) val); |
34dc7c2f BB |
2106 | } |
2107 | break; | |
2108 | ||
2109 | case ZFS_PROP_MOUNTPOINT: | |
2110 | /* | |
2111 | * Getting the precise mountpoint can be tricky. | |
2112 | * | |
2113 | * - for 'none' or 'legacy', return those values. | |
34dc7c2f BB |
2114 | * - for inherited mountpoints, we want to take everything |
2115 | * after our ancestor and append it to the inherited value. | |
2116 | * | |
2117 | * If the pool has an alternate root, we want to prepend that | |
2118 | * root to any values we return. | |
2119 | */ | |
b128c09f | 2120 | |
34dc7c2f BB |
2121 | str = getprop_string(zhp, prop, &source); |
2122 | ||
b128c09f BB |
2123 | if (str[0] == '/') { |
2124 | char buf[MAXPATHLEN]; | |
2125 | char *root = buf; | |
428870ff | 2126 | const char *relpath; |
34dc7c2f | 2127 | |
428870ff BB |
2128 | /* |
2129 | * If we inherit the mountpoint, even from a dataset | |
2130 | * with a received value, the source will be the path of | |
2131 | * the dataset we inherit from. If source is | |
2132 | * ZPROP_SOURCE_VAL_RECVD, the received value is not | |
2133 | * inherited. | |
2134 | */ | |
2135 | if (strcmp(source, ZPROP_SOURCE_VAL_RECVD) == 0) { | |
2136 | relpath = ""; | |
2137 | } else { | |
2138 | relpath = zhp->zfs_name + strlen(source); | |
2139 | if (relpath[0] == '/') | |
2140 | relpath++; | |
2141 | } | |
b128c09f BB |
2142 | |
2143 | if ((zpool_get_prop(zhp->zpool_hdl, | |
2144 | ZPOOL_PROP_ALTROOT, buf, MAXPATHLEN, NULL)) || | |
2145 | (strcmp(root, "-") == 0)) | |
2146 | root[0] = '\0'; | |
2147 | /* | |
2148 | * Special case an alternate root of '/'. This will | |
2149 | * avoid having multiple leading slashes in the | |
2150 | * mountpoint path. | |
2151 | */ | |
2152 | if (strcmp(root, "/") == 0) | |
2153 | root++; | |
2154 | ||
2155 | /* | |
2156 | * If the mountpoint is '/' then skip over this | |
2157 | * if we are obtaining either an alternate root or | |
2158 | * an inherited mountpoint. | |
2159 | */ | |
2160 | if (str[1] == '\0' && (root[0] != '\0' || | |
2161 | relpath[0] != '\0')) | |
34dc7c2f BB |
2162 | str++; |
2163 | ||
2164 | if (relpath[0] == '\0') | |
2165 | (void) snprintf(propbuf, proplen, "%s%s", | |
2166 | root, str); | |
2167 | else | |
2168 | (void) snprintf(propbuf, proplen, "%s%s%s%s", | |
2169 | root, str, relpath[0] == '@' ? "" : "/", | |
2170 | relpath); | |
2171 | } else { | |
2172 | /* 'legacy' or 'none' */ | |
2173 | (void) strlcpy(propbuf, str, proplen); | |
2174 | } | |
2175 | ||
2176 | break; | |
2177 | ||
2178 | case ZFS_PROP_ORIGIN: | |
2179 | (void) strlcpy(propbuf, getprop_string(zhp, prop, &source), | |
2180 | proplen); | |
2181 | /* | |
2182 | * If there is no parent at all, return failure to indicate that | |
2183 | * it doesn't apply to this dataset. | |
2184 | */ | |
2185 | if (propbuf[0] == '\0') | |
2186 | return (-1); | |
2187 | break; | |
2188 | ||
330d06f9 MA |
2189 | case ZFS_PROP_CLONES: |
2190 | if (get_clones_string(zhp, propbuf, proplen) != 0) | |
2191 | return (-1); | |
2192 | break; | |
2193 | ||
34dc7c2f BB |
2194 | case ZFS_PROP_QUOTA: |
2195 | case ZFS_PROP_REFQUOTA: | |
2196 | case ZFS_PROP_RESERVATION: | |
2197 | case ZFS_PROP_REFRESERVATION: | |
2198 | ||
2199 | if (get_numeric_property(zhp, prop, src, &source, &val) != 0) | |
2200 | return (-1); | |
2201 | ||
2202 | /* | |
2203 | * If quota or reservation is 0, we translate this into 'none' | |
2204 | * (unless literal is set), and indicate that it's the default | |
2205 | * value. Otherwise, we print the number nicely and indicate | |
2206 | * that its set locally. | |
2207 | */ | |
2208 | if (val == 0) { | |
2209 | if (literal) | |
2210 | (void) strlcpy(propbuf, "0", proplen); | |
2211 | else | |
2212 | (void) strlcpy(propbuf, "none", proplen); | |
2213 | } else { | |
2214 | if (literal) | |
2215 | (void) snprintf(propbuf, proplen, "%llu", | |
2216 | (u_longlong_t)val); | |
2217 | else | |
2218 | zfs_nicenum(val, propbuf, proplen); | |
2219 | } | |
2220 | break; | |
2221 | ||
f5fc4aca | 2222 | case ZFS_PROP_REFRATIO: |
34dc7c2f BB |
2223 | case ZFS_PROP_COMPRESSRATIO: |
2224 | if (get_numeric_property(zhp, prop, src, &source, &val) != 0) | |
2225 | return (-1); | |
428870ff BB |
2226 | (void) snprintf(propbuf, proplen, "%llu.%02llux", |
2227 | (u_longlong_t)(val / 100), | |
2228 | (u_longlong_t)(val % 100)); | |
34dc7c2f BB |
2229 | break; |
2230 | ||
2231 | case ZFS_PROP_TYPE: | |
2232 | switch (zhp->zfs_type) { | |
2233 | case ZFS_TYPE_FILESYSTEM: | |
2234 | str = "filesystem"; | |
2235 | break; | |
2236 | case ZFS_TYPE_VOLUME: | |
2237 | str = "volume"; | |
2238 | break; | |
2239 | case ZFS_TYPE_SNAPSHOT: | |
2240 | str = "snapshot"; | |
2241 | break; | |
2242 | default: | |
2243 | abort(); | |
2244 | } | |
2245 | (void) snprintf(propbuf, proplen, "%s", str); | |
2246 | break; | |
2247 | ||
2248 | case ZFS_PROP_MOUNTED: | |
2249 | /* | |
2250 | * The 'mounted' property is a pseudo-property that described | |
2251 | * whether the filesystem is currently mounted. Even though | |
2252 | * it's a boolean value, the typical values of "on" and "off" | |
2253 | * don't make sense, so we translate to "yes" and "no". | |
2254 | */ | |
2255 | if (get_numeric_property(zhp, ZFS_PROP_MOUNTED, | |
2256 | src, &source, &val) != 0) | |
2257 | return (-1); | |
2258 | if (val) | |
2259 | (void) strlcpy(propbuf, "yes", proplen); | |
2260 | else | |
2261 | (void) strlcpy(propbuf, "no", proplen); | |
2262 | break; | |
2263 | ||
2264 | case ZFS_PROP_NAME: | |
2265 | /* | |
2266 | * The 'name' property is a pseudo-property derived from the | |
2267 | * dataset name. It is presented as a real property to simplify | |
2268 | * consumers. | |
2269 | */ | |
2270 | (void) strlcpy(propbuf, zhp->zfs_name, proplen); | |
2271 | break; | |
2272 | ||
428870ff BB |
2273 | case ZFS_PROP_MLSLABEL: |
2274 | { | |
d2c15e84 | 2275 | #ifdef HAVE_MLSLABEL |
428870ff BB |
2276 | m_label_t *new_sl = NULL; |
2277 | char *ascii = NULL; /* human readable label */ | |
2278 | ||
2279 | (void) strlcpy(propbuf, | |
2280 | getprop_string(zhp, prop, &source), proplen); | |
2281 | ||
2282 | if (literal || (strcasecmp(propbuf, | |
2283 | ZFS_MLSLABEL_DEFAULT) == 0)) | |
2284 | break; | |
2285 | ||
2286 | /* | |
2287 | * Try to translate the internal hex string to | |
2288 | * human-readable output. If there are any | |
2289 | * problems just use the hex string. | |
2290 | */ | |
2291 | ||
2292 | if (str_to_label(propbuf, &new_sl, MAC_LABEL, | |
2293 | L_NO_CORRECTION, NULL) == -1) { | |
2294 | m_label_free(new_sl); | |
2295 | break; | |
2296 | } | |
2297 | ||
2298 | if (label_to_str(new_sl, &ascii, M_LABEL, | |
2299 | DEF_NAMES) != 0) { | |
2300 | if (ascii) | |
2301 | free(ascii); | |
2302 | m_label_free(new_sl); | |
2303 | break; | |
2304 | } | |
2305 | m_label_free(new_sl); | |
2306 | ||
2307 | (void) strlcpy(propbuf, ascii, proplen); | |
2308 | free(ascii); | |
d2c15e84 BB |
2309 | #else |
2310 | (void) strlcpy(propbuf, | |
2311 | getprop_string(zhp, prop, &source), proplen); | |
2312 | #endif /* HAVE_MLSLABEL */ | |
428870ff BB |
2313 | } |
2314 | break; | |
2315 | ||
34dc7c2f BB |
2316 | default: |
2317 | switch (zfs_prop_get_type(prop)) { | |
2318 | case PROP_TYPE_NUMBER: | |
2319 | if (get_numeric_property(zhp, prop, src, | |
2320 | &source, &val) != 0) | |
2321 | return (-1); | |
2322 | if (literal) | |
2323 | (void) snprintf(propbuf, proplen, "%llu", | |
2324 | (u_longlong_t)val); | |
2325 | else | |
2326 | zfs_nicenum(val, propbuf, proplen); | |
2327 | break; | |
2328 | ||
2329 | case PROP_TYPE_STRING: | |
2330 | (void) strlcpy(propbuf, | |
2331 | getprop_string(zhp, prop, &source), proplen); | |
2332 | break; | |
2333 | ||
2334 | case PROP_TYPE_INDEX: | |
2335 | if (get_numeric_property(zhp, prop, src, | |
2336 | &source, &val) != 0) | |
2337 | return (-1); | |
2338 | if (zfs_prop_index_to_string(prop, val, &strval) != 0) | |
2339 | return (-1); | |
2340 | (void) strlcpy(propbuf, strval, proplen); | |
2341 | break; | |
2342 | ||
2343 | default: | |
2344 | abort(); | |
2345 | } | |
2346 | } | |
2347 | ||
2348 | get_source(zhp, src, source, statbuf, statlen); | |
2349 | ||
2350 | return (0); | |
2351 | } | |
2352 | ||
2353 | /* | |
2354 | * Utility function to get the given numeric property. Does no validation that | |
2355 | * the given property is the appropriate type; should only be used with | |
2356 | * hard-coded property types. | |
2357 | */ | |
2358 | uint64_t | |
2359 | zfs_prop_get_int(zfs_handle_t *zhp, zfs_prop_t prop) | |
2360 | { | |
2361 | char *source; | |
2362 | uint64_t val; | |
2363 | ||
2364 | (void) get_numeric_property(zhp, prop, NULL, &source, &val); | |
2365 | ||
2366 | return (val); | |
2367 | } | |
2368 | ||
2369 | int | |
2370 | zfs_prop_set_int(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t val) | |
2371 | { | |
2372 | char buf[64]; | |
2373 | ||
9babb374 | 2374 | (void) snprintf(buf, sizeof (buf), "%llu", (longlong_t)val); |
34dc7c2f BB |
2375 | return (zfs_prop_set(zhp, zfs_prop_to_name(prop), buf)); |
2376 | } | |
2377 | ||
2378 | /* | |
2379 | * Similar to zfs_prop_get(), but returns the value as an integer. | |
2380 | */ | |
2381 | int | |
2382 | zfs_prop_get_numeric(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t *value, | |
2383 | zprop_source_t *src, char *statbuf, size_t statlen) | |
2384 | { | |
2385 | char *source; | |
2386 | ||
2387 | /* | |
2388 | * Check to see if this property applies to our object | |
2389 | */ | |
2390 | if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) { | |
2391 | return (zfs_error_fmt(zhp->zfs_hdl, EZFS_PROPTYPE, | |
2392 | dgettext(TEXT_DOMAIN, "cannot get property '%s'"), | |
2393 | zfs_prop_to_name(prop))); | |
2394 | } | |
2395 | ||
2396 | if (src) | |
2397 | *src = ZPROP_SRC_NONE; | |
2398 | ||
2399 | if (get_numeric_property(zhp, prop, src, &source, value) != 0) | |
2400 | return (-1); | |
2401 | ||
2402 | get_source(zhp, src, source, statbuf, statlen); | |
2403 | ||
2404 | return (0); | |
2405 | } | |
2406 | ||
be160928 | 2407 | #ifdef HAVE_IDMAP |
9babb374 BB |
2408 | static int |
2409 | idmap_id_to_numeric_domain_rid(uid_t id, boolean_t isuser, | |
2410 | char **domainp, idmap_rid_t *ridp) | |
2411 | { | |
9babb374 BB |
2412 | idmap_get_handle_t *get_hdl = NULL; |
2413 | idmap_stat status; | |
2414 | int err = EINVAL; | |
2415 | ||
572e2857 | 2416 | if (idmap_get_create(&get_hdl) != IDMAP_SUCCESS) |
9babb374 BB |
2417 | goto out; |
2418 | ||
2419 | if (isuser) { | |
2420 | err = idmap_get_sidbyuid(get_hdl, id, | |
2421 | IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); | |
2422 | } else { | |
2423 | err = idmap_get_sidbygid(get_hdl, id, | |
2424 | IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); | |
2425 | } | |
2426 | if (err == IDMAP_SUCCESS && | |
2427 | idmap_get_mappings(get_hdl) == IDMAP_SUCCESS && | |
2428 | status == IDMAP_SUCCESS) | |
2429 | err = 0; | |
2430 | else | |
2431 | err = EINVAL; | |
2432 | out: | |
2433 | if (get_hdl) | |
2434 | idmap_get_destroy(get_hdl); | |
9babb374 BB |
2435 | return (err); |
2436 | } | |
be160928 | 2437 | #endif /* HAVE_IDMAP */ |
9babb374 BB |
2438 | |
2439 | /* | |
2440 | * convert the propname into parameters needed by kernel | |
2441 | * Eg: userquota@ahrens -> ZFS_PROP_USERQUOTA, "", 126829 | |
2442 | * Eg: userused@matt@domain -> ZFS_PROP_USERUSED, "S-1-123-456", 789 | |
ada8ec1e SC |
2443 | * Eg: groupquota@staff -> ZFS_PROP_GROUPQUOTA, "", 1234 |
2444 | * Eg: groupused@staff -> ZFS_PROP_GROUPUSED, "", 1234 | |
9babb374 BB |
2445 | */ |
2446 | static int | |
2447 | userquota_propname_decode(const char *propname, boolean_t zoned, | |
2448 | zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp) | |
2449 | { | |
2450 | zfs_userquota_prop_t type; | |
ada8ec1e | 2451 | char *cp; |
9babb374 | 2452 | boolean_t isuser; |
ada8ec1e SC |
2453 | boolean_t isgroup; |
2454 | struct passwd *pw; | |
2455 | struct group *gr; | |
9babb374 BB |
2456 | |
2457 | domain[0] = '\0'; | |
2458 | ||
2459 | /* Figure out the property type ({user|group}{quota|space}) */ | |
2460 | for (type = 0; type < ZFS_NUM_USERQUOTA_PROPS; type++) { | |
2461 | if (strncmp(propname, zfs_userquota_prop_prefixes[type], | |
2462 | strlen(zfs_userquota_prop_prefixes[type])) == 0) | |
2463 | break; | |
2464 | } | |
2465 | if (type == ZFS_NUM_USERQUOTA_PROPS) | |
2466 | return (EINVAL); | |
2467 | *typep = type; | |
2468 | ||
ada8ec1e SC |
2469 | isuser = (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_USERUSED); |
2470 | isgroup = (type == ZFS_PROP_GROUPQUOTA || type == ZFS_PROP_GROUPUSED); | |
9babb374 BB |
2471 | |
2472 | cp = strchr(propname, '@') + 1; | |
2473 | ||
ada8ec1e SC |
2474 | if (isuser && (pw = getpwnam(cp)) != NULL) { |
2475 | if (zoned && getzoneid() == GLOBAL_ZONEID) | |
2476 | return (ENOENT); | |
2477 | *ridp = pw->pw_uid; | |
2478 | } else if (isgroup && (gr = getgrnam(cp)) != NULL) { | |
2479 | if (zoned && getzoneid() == GLOBAL_ZONEID) | |
2480 | return (ENOENT); | |
2481 | *ridp = gr->gr_gid; | |
2482 | } else if (strchr(cp, '@')) { | |
be160928 | 2483 | #ifdef HAVE_IDMAP |
9babb374 BB |
2484 | /* |
2485 | * It's a SID name (eg "user@domain") that needs to be | |
45d1cae3 | 2486 | * turned into S-1-domainID-RID. |
9babb374 | 2487 | */ |
45d1cae3 | 2488 | directory_error_t e; |
ada8ec1e SC |
2489 | char *numericsid = NULL; |
2490 | char *end; | |
2491 | ||
9babb374 BB |
2492 | if (zoned && getzoneid() == GLOBAL_ZONEID) |
2493 | return (ENOENT); | |
45d1cae3 BB |
2494 | if (isuser) { |
2495 | e = directory_sid_from_user_name(NULL, | |
2496 | cp, &numericsid); | |
2497 | } else { | |
2498 | e = directory_sid_from_group_name(NULL, | |
2499 | cp, &numericsid); | |
2500 | } | |
2501 | if (e != NULL) { | |
2502 | directory_error_free(e); | |
9babb374 | 2503 | return (ENOENT); |
45d1cae3 BB |
2504 | } |
2505 | if (numericsid == NULL) | |
9babb374 | 2506 | return (ENOENT); |
45d1cae3 | 2507 | cp = numericsid; |
45d1cae3 | 2508 | (void) strlcpy(domain, cp, domainlen); |
9babb374 BB |
2509 | cp = strrchr(domain, '-'); |
2510 | *cp = '\0'; | |
2511 | cp++; | |
2512 | ||
2513 | errno = 0; | |
2514 | *ridp = strtoull(cp, &end, 10); | |
ada8ec1e SC |
2515 | free(numericsid); |
2516 | ||
9babb374 BB |
2517 | if (errno != 0 || *end != '\0') |
2518 | return (EINVAL); | |
ada8ec1e SC |
2519 | #else |
2520 | return (ENOSYS); | |
2521 | #endif /* HAVE_IDMAP */ | |
9babb374 | 2522 | } else { |
be160928 | 2523 | #ifdef HAVE_IDMAP |
9babb374 | 2524 | /* It's a user/group ID (eg "12345"). */ |
ada8ec1e | 2525 | uid_t id; |
9babb374 BB |
2526 | idmap_rid_t rid; |
2527 | char *mapdomain; | |
ada8ec1e | 2528 | char *end; |
9babb374 | 2529 | |
ada8ec1e | 2530 | id = strtoul(cp, &end, 10); |
9babb374 BB |
2531 | if (*end != '\0') |
2532 | return (EINVAL); | |
2533 | if (id > MAXUID) { | |
2534 | /* It's an ephemeral ID. */ | |
2535 | if (idmap_id_to_numeric_domain_rid(id, isuser, | |
2536 | &mapdomain, &rid) != 0) | |
2537 | return (ENOENT); | |
45d1cae3 | 2538 | (void) strlcpy(domain, mapdomain, domainlen); |
9babb374 BB |
2539 | *ridp = rid; |
2540 | } else { | |
2541 | *ridp = id; | |
2542 | } | |
be160928 BB |
2543 | #else |
2544 | return (ENOSYS); | |
2545 | #endif /* HAVE_IDMAP */ | |
9babb374 BB |
2546 | } |
2547 | ||
2548 | return (0); | |
2549 | } | |
2550 | ||
2551 | static int | |
2552 | zfs_prop_get_userquota_common(zfs_handle_t *zhp, const char *propname, | |
2553 | uint64_t *propvalue, zfs_userquota_prop_t *typep) | |
2554 | { | |
2555 | int err; | |
2598c001 | 2556 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
9babb374 | 2557 | |
330d06f9 | 2558 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); |
9babb374 BB |
2559 | |
2560 | err = userquota_propname_decode(propname, | |
2561 | zfs_prop_get_int(zhp, ZFS_PROP_ZONED), | |
2562 | typep, zc.zc_value, sizeof (zc.zc_value), &zc.zc_guid); | |
2563 | zc.zc_objset_type = *typep; | |
2564 | if (err) | |
2565 | return (err); | |
2566 | ||
2567 | err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_USERSPACE_ONE, &zc); | |
2568 | if (err) | |
2569 | return (err); | |
2570 | ||
2571 | *propvalue = zc.zc_cookie; | |
2572 | return (0); | |
2573 | } | |
2574 | ||
2575 | int | |
2576 | zfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname, | |
2577 | uint64_t *propvalue) | |
2578 | { | |
2579 | zfs_userquota_prop_t type; | |
2580 | ||
2581 | return (zfs_prop_get_userquota_common(zhp, propname, propvalue, | |
2582 | &type)); | |
2583 | } | |
2584 | ||
2585 | int | |
2586 | zfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname, | |
2587 | char *propbuf, int proplen, boolean_t literal) | |
2588 | { | |
2589 | int err; | |
2590 | uint64_t propvalue; | |
2591 | zfs_userquota_prop_t type; | |
2592 | ||
2593 | err = zfs_prop_get_userquota_common(zhp, propname, &propvalue, | |
2594 | &type); | |
2595 | ||
2596 | if (err) | |
2597 | return (err); | |
2598 | ||
2599 | if (literal) { | |
b8864a23 BB |
2600 | (void) snprintf(propbuf, proplen, "%llu", |
2601 | (u_longlong_t)propvalue); | |
9babb374 BB |
2602 | } else if (propvalue == 0 && |
2603 | (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_GROUPQUOTA)) { | |
2604 | (void) strlcpy(propbuf, "none", proplen); | |
2605 | } else { | |
2606 | zfs_nicenum(propvalue, propbuf, proplen); | |
2607 | } | |
2608 | return (0); | |
2609 | } | |
2610 | ||
330d06f9 MA |
2611 | int |
2612 | zfs_prop_get_written_int(zfs_handle_t *zhp, const char *propname, | |
2613 | uint64_t *propvalue) | |
34dc7c2f | 2614 | { |
330d06f9 MA |
2615 | int err; |
2616 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; | |
2617 | const char *snapname; | |
34dc7c2f | 2618 | |
330d06f9 | 2619 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); |
34dc7c2f | 2620 | |
330d06f9 MA |
2621 | snapname = strchr(propname, '@') + 1; |
2622 | if (strchr(snapname, '@')) { | |
2623 | (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); | |
2624 | } else { | |
2625 | /* snapname is the short name, append it to zhp's fsname */ | |
2626 | char *cp; | |
2627 | ||
2628 | (void) strlcpy(zc.zc_value, zhp->zfs_name, | |
2629 | sizeof (zc.zc_value)); | |
2630 | cp = strchr(zc.zc_value, '@'); | |
2631 | if (cp != NULL) | |
2632 | *cp = '\0'; | |
2633 | (void) strlcat(zc.zc_value, "@", sizeof (zc.zc_value)); | |
2634 | (void) strlcat(zc.zc_value, snapname, sizeof (zc.zc_value)); | |
2635 | } | |
fb5f0bc8 | 2636 | |
330d06f9 MA |
2637 | err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_SPACE_WRITTEN, &zc); |
2638 | if (err) | |
2639 | return (err); | |
fb5f0bc8 | 2640 | |
330d06f9 MA |
2641 | *propvalue = zc.zc_cookie; |
2642 | return (0); | |
fb5f0bc8 BB |
2643 | } |
2644 | ||
34dc7c2f | 2645 | int |
330d06f9 MA |
2646 | zfs_prop_get_written(zfs_handle_t *zhp, const char *propname, |
2647 | char *propbuf, int proplen, boolean_t literal) | |
34dc7c2f | 2648 | { |
330d06f9 MA |
2649 | int err; |
2650 | uint64_t propvalue; | |
34dc7c2f | 2651 | |
330d06f9 | 2652 | err = zfs_prop_get_written_int(zhp, propname, &propvalue); |
fb5f0bc8 | 2653 | |
330d06f9 MA |
2654 | if (err) |
2655 | return (err); | |
34dc7c2f | 2656 | |
330d06f9 MA |
2657 | if (literal) { |
2658 | (void) snprintf(propbuf, proplen, "%llu", (long long unsigned int)propvalue); | |
2659 | } else { | |
2660 | zfs_nicenum(propvalue, propbuf, proplen); | |
34dc7c2f | 2661 | } |
330d06f9 MA |
2662 | |
2663 | return (0); | |
34dc7c2f BB |
2664 | } |
2665 | ||
34dc7c2f | 2666 | int |
330d06f9 MA |
2667 | zfs_get_snapused_int(zfs_handle_t *firstsnap, zfs_handle_t *lastsnap, |
2668 | uint64_t *usedp) | |
34dc7c2f | 2669 | { |
330d06f9 | 2670 | int err; |
2598c001 | 2671 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f | 2672 | |
330d06f9 MA |
2673 | (void) strlcpy(zc.zc_name, lastsnap->zfs_name, sizeof (zc.zc_name)); |
2674 | (void) strlcpy(zc.zc_value, firstsnap->zfs_name, sizeof (zc.zc_value)); | |
0cee2406 | 2675 | |
330d06f9 MA |
2676 | err = ioctl(lastsnap->zfs_hdl->libzfs_fd, ZFS_IOC_SPACE_SNAPS, &zc); |
2677 | if (err) | |
2678 | return (err); | |
34dc7c2f | 2679 | |
330d06f9 | 2680 | *usedp = zc.zc_cookie; |
34dc7c2f | 2681 | |
330d06f9 | 2682 | return (0); |
34dc7c2f BB |
2683 | } |
2684 | ||
2685 | /* | |
330d06f9 | 2686 | * Returns the name of the given zfs handle. |
34dc7c2f | 2687 | */ |
330d06f9 MA |
2688 | const char * |
2689 | zfs_get_name(const zfs_handle_t *zhp) | |
34dc7c2f | 2690 | { |
330d06f9 MA |
2691 | return (zhp->zfs_name); |
2692 | } | |
34dc7c2f | 2693 | |
330d06f9 MA |
2694 | /* |
2695 | * Returns the type of the given zfs handle. | |
2696 | */ | |
2697 | zfs_type_t | |
2698 | zfs_get_type(const zfs_handle_t *zhp) | |
2699 | { | |
2700 | return (zhp->zfs_type); | |
34dc7c2f BB |
2701 | } |
2702 | ||
428870ff BB |
2703 | /* |
2704 | * Is one dataset name a child dataset of another? | |
2705 | * | |
2706 | * Needs to handle these cases: | |
2707 | * Dataset 1 "a/foo" "a/foo" "a/foo" "a/foo" | |
2708 | * Dataset 2 "a/fo" "a/foobar" "a/bar/baz" "a/foo/bar" | |
2709 | * Descendant? No. No. No. Yes. | |
2710 | */ | |
2711 | static boolean_t | |
2712 | is_descendant(const char *ds1, const char *ds2) | |
2713 | { | |
2714 | size_t d1len = strlen(ds1); | |
2715 | ||
2716 | /* ds2 can't be a descendant if it's smaller */ | |
2717 | if (strlen(ds2) < d1len) | |
2718 | return (B_FALSE); | |
2719 | ||
2720 | /* otherwise, compare strings and verify that there's a '/' char */ | |
2721 | return (ds2[d1len] == '/' && (strncmp(ds1, ds2, d1len) == 0)); | |
2722 | } | |
2723 | ||
34dc7c2f BB |
2724 | /* |
2725 | * Given a complete name, return just the portion that refers to the parent. | |
330d06f9 MA |
2726 | * Will return -1 if there is no parent (path is just the name of the |
2727 | * pool). | |
34dc7c2f BB |
2728 | */ |
2729 | static int | |
2730 | parent_name(const char *path, char *buf, size_t buflen) | |
2731 | { | |
330d06f9 | 2732 | char *slashp; |
34dc7c2f | 2733 | |
330d06f9 | 2734 | (void) strlcpy(buf, path, buflen); |
34dc7c2f | 2735 | |
330d06f9 MA |
2736 | if ((slashp = strrchr(buf, '/')) == NULL) |
2737 | return (-1); | |
2738 | *slashp = '\0'; | |
34dc7c2f BB |
2739 | |
2740 | return (0); | |
2741 | } | |
2742 | ||
2743 | /* | |
2744 | * If accept_ancestor is false, then check to make sure that the given path has | |
2745 | * a parent, and that it exists. If accept_ancestor is true, then find the | |
2746 | * closest existing ancestor for the given path. In prefixlen return the | |
2747 | * length of already existing prefix of the given path. We also fetch the | |
2748 | * 'zoned' property, which is used to validate property settings when creating | |
2749 | * new datasets. | |
2750 | */ | |
2751 | static int | |
2752 | check_parents(libzfs_handle_t *hdl, const char *path, uint64_t *zoned, | |
2753 | boolean_t accept_ancestor, int *prefixlen) | |
2754 | { | |
2598c001 | 2755 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
2756 | char parent[ZFS_MAXNAMELEN]; |
2757 | char *slash; | |
2758 | zfs_handle_t *zhp; | |
2759 | char errbuf[1024]; | |
428870ff | 2760 | uint64_t is_zoned; |
34dc7c2f | 2761 | |
fb5f0bc8 BB |
2762 | (void) snprintf(errbuf, sizeof (errbuf), |
2763 | dgettext(TEXT_DOMAIN, "cannot create '%s'"), path); | |
34dc7c2f BB |
2764 | |
2765 | /* get parent, and check to see if this is just a pool */ | |
2766 | if (parent_name(path, parent, sizeof (parent)) != 0) { | |
2767 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2768 | "missing dataset name")); | |
2769 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
2770 | } | |
2771 | ||
2772 | /* check to see if the pool exists */ | |
2773 | if ((slash = strchr(parent, '/')) == NULL) | |
2774 | slash = parent + strlen(parent); | |
2775 | (void) strncpy(zc.zc_name, parent, slash - parent); | |
2776 | zc.zc_name[slash - parent] = '\0'; | |
2777 | if (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, &zc) != 0 && | |
2778 | errno == ENOENT) { | |
2779 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2780 | "no such pool '%s'"), zc.zc_name); | |
2781 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
2782 | } | |
2783 | ||
2784 | /* check to see if the parent dataset exists */ | |
2785 | while ((zhp = make_dataset_handle(hdl, parent)) == NULL) { | |
2786 | if (errno == ENOENT && accept_ancestor) { | |
2787 | /* | |
2788 | * Go deeper to find an ancestor, give up on top level. | |
2789 | */ | |
2790 | if (parent_name(parent, parent, sizeof (parent)) != 0) { | |
2791 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2792 | "no such pool '%s'"), zc.zc_name); | |
2793 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
2794 | } | |
2795 | } else if (errno == ENOENT) { | |
2796 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2797 | "parent does not exist")); | |
2798 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
2799 | } else | |
2800 | return (zfs_standard_error(hdl, errno, errbuf)); | |
2801 | } | |
2802 | ||
428870ff BB |
2803 | is_zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); |
2804 | if (zoned != NULL) | |
2805 | *zoned = is_zoned; | |
2806 | ||
34dc7c2f | 2807 | /* we are in a non-global zone, but parent is in the global zone */ |
428870ff | 2808 | if (getzoneid() != GLOBAL_ZONEID && !is_zoned) { |
34dc7c2f BB |
2809 | (void) zfs_standard_error(hdl, EPERM, errbuf); |
2810 | zfs_close(zhp); | |
2811 | return (-1); | |
2812 | } | |
2813 | ||
2814 | /* make sure parent is a filesystem */ | |
2815 | if (zfs_get_type(zhp) != ZFS_TYPE_FILESYSTEM) { | |
2816 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2817 | "parent is not a filesystem")); | |
2818 | (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); | |
2819 | zfs_close(zhp); | |
2820 | return (-1); | |
2821 | } | |
2822 | ||
2823 | zfs_close(zhp); | |
2824 | if (prefixlen != NULL) | |
2825 | *prefixlen = strlen(parent); | |
2826 | return (0); | |
2827 | } | |
2828 | ||
2829 | /* | |
2830 | * Finds whether the dataset of the given type(s) exists. | |
2831 | */ | |
2832 | boolean_t | |
2833 | zfs_dataset_exists(libzfs_handle_t *hdl, const char *path, zfs_type_t types) | |
2834 | { | |
2835 | zfs_handle_t *zhp; | |
2836 | ||
2837 | if (!zfs_validate_name(hdl, path, types, B_FALSE)) | |
2838 | return (B_FALSE); | |
2839 | ||
2840 | /* | |
2841 | * Try to get stats for the dataset, which will tell us if it exists. | |
2842 | */ | |
2843 | if ((zhp = make_dataset_handle(hdl, path)) != NULL) { | |
2844 | int ds_type = zhp->zfs_type; | |
2845 | ||
2846 | zfs_close(zhp); | |
2847 | if (types & ds_type) | |
2848 | return (B_TRUE); | |
2849 | } | |
2850 | return (B_FALSE); | |
2851 | } | |
2852 | ||
2853 | /* | |
2854 | * Given a path to 'target', create all the ancestors between | |
2855 | * the prefixlen portion of the path, and the target itself. | |
2856 | * Fail if the initial prefixlen-ancestor does not already exist. | |
2857 | */ | |
2858 | int | |
2859 | create_parents(libzfs_handle_t *hdl, char *target, int prefixlen) | |
2860 | { | |
2861 | zfs_handle_t *h; | |
2862 | char *cp; | |
2863 | const char *opname; | |
2864 | ||
2865 | /* make sure prefix exists */ | |
2866 | cp = target + prefixlen; | |
2867 | if (*cp != '/') { | |
2868 | assert(strchr(cp, '/') == NULL); | |
2869 | h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); | |
2870 | } else { | |
2871 | *cp = '\0'; | |
2872 | h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); | |
2873 | *cp = '/'; | |
2874 | } | |
2875 | if (h == NULL) | |
2876 | return (-1); | |
2877 | zfs_close(h); | |
2878 | ||
2879 | /* | |
2880 | * Attempt to create, mount, and share any ancestor filesystems, | |
2881 | * up to the prefixlen-long one. | |
2882 | */ | |
2883 | for (cp = target + prefixlen + 1; | |
c65aa5b2 | 2884 | (cp = strchr(cp, '/')); *cp = '/', cp++) { |
34dc7c2f BB |
2885 | char *logstr; |
2886 | ||
2887 | *cp = '\0'; | |
2888 | ||
2889 | h = make_dataset_handle(hdl, target); | |
2890 | if (h) { | |
2891 | /* it already exists, nothing to do here */ | |
2892 | zfs_close(h); | |
2893 | continue; | |
2894 | } | |
2895 | ||
2896 | logstr = hdl->libzfs_log_str; | |
2897 | hdl->libzfs_log_str = NULL; | |
2898 | if (zfs_create(hdl, target, ZFS_TYPE_FILESYSTEM, | |
2899 | NULL) != 0) { | |
2900 | hdl->libzfs_log_str = logstr; | |
2901 | opname = dgettext(TEXT_DOMAIN, "create"); | |
2902 | goto ancestorerr; | |
2903 | } | |
2904 | ||
2905 | hdl->libzfs_log_str = logstr; | |
2906 | h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); | |
2907 | if (h == NULL) { | |
2908 | opname = dgettext(TEXT_DOMAIN, "open"); | |
2909 | goto ancestorerr; | |
2910 | } | |
2911 | ||
2912 | if (zfs_mount(h, NULL, 0) != 0) { | |
2913 | opname = dgettext(TEXT_DOMAIN, "mount"); | |
2914 | goto ancestorerr; | |
2915 | } | |
2916 | ||
2917 | if (zfs_share(h) != 0) { | |
2918 | opname = dgettext(TEXT_DOMAIN, "share"); | |
2919 | goto ancestorerr; | |
2920 | } | |
2921 | ||
2922 | zfs_close(h); | |
2923 | } | |
2924 | ||
2925 | return (0); | |
2926 | ||
2927 | ancestorerr: | |
2928 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2929 | "failed to %s ancestor '%s'"), opname, target); | |
2930 | return (-1); | |
2931 | } | |
2932 | ||
2933 | /* | |
2934 | * Creates non-existing ancestors of the given path. | |
2935 | */ | |
2936 | int | |
2937 | zfs_create_ancestors(libzfs_handle_t *hdl, const char *path) | |
2938 | { | |
2939 | int prefix; | |
34dc7c2f | 2940 | char *path_copy; |
d4ed6673 | 2941 | int rc = 0; |
34dc7c2f | 2942 | |
428870ff | 2943 | if (check_parents(hdl, path, NULL, B_TRUE, &prefix) != 0) |
34dc7c2f BB |
2944 | return (-1); |
2945 | ||
2946 | if ((path_copy = strdup(path)) != NULL) { | |
2947 | rc = create_parents(hdl, path_copy, prefix); | |
2948 | free(path_copy); | |
2949 | } | |
2950 | if (path_copy == NULL || rc != 0) | |
2951 | return (-1); | |
2952 | ||
2953 | return (0); | |
2954 | } | |
2955 | ||
2956 | /* | |
2957 | * Create a new filesystem or volume. | |
2958 | */ | |
2959 | int | |
2960 | zfs_create(libzfs_handle_t *hdl, const char *path, zfs_type_t type, | |
2961 | nvlist_t *props) | |
2962 | { | |
2598c001 | 2963 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
2964 | int ret; |
2965 | uint64_t size = 0; | |
2966 | uint64_t blocksize = zfs_prop_default_numeric(ZFS_PROP_VOLBLOCKSIZE); | |
2967 | char errbuf[1024]; | |
2968 | uint64_t zoned; | |
2969 | ||
2970 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
2971 | "cannot create '%s'"), path); | |
2972 | ||
2973 | /* validate the path, taking care to note the extended error message */ | |
2974 | if (!zfs_validate_name(hdl, path, type, B_TRUE)) | |
2975 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
2976 | ||
2977 | /* validate parents exist */ | |
2978 | if (check_parents(hdl, path, &zoned, B_FALSE, NULL) != 0) | |
2979 | return (-1); | |
2980 | ||
2981 | /* | |
2982 | * The failure modes when creating a dataset of a different type over | |
2983 | * one that already exists is a little strange. In particular, if you | |
2984 | * try to create a dataset on top of an existing dataset, the ioctl() | |
2985 | * will return ENOENT, not EEXIST. To prevent this from happening, we | |
2986 | * first try to see if the dataset exists. | |
2987 | */ | |
2988 | (void) strlcpy(zc.zc_name, path, sizeof (zc.zc_name)); | |
2989 | if (zfs_dataset_exists(hdl, zc.zc_name, ZFS_TYPE_DATASET)) { | |
2990 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2991 | "dataset already exists")); | |
2992 | return (zfs_error(hdl, EZFS_EXISTS, errbuf)); | |
2993 | } | |
2994 | ||
2995 | if (type == ZFS_TYPE_VOLUME) | |
2996 | zc.zc_objset_type = DMU_OST_ZVOL; | |
2997 | else | |
2998 | zc.zc_objset_type = DMU_OST_ZFS; | |
2999 | ||
b128c09f | 3000 | if (props && (props = zfs_valid_proplist(hdl, type, props, |
34dc7c2f BB |
3001 | zoned, NULL, errbuf)) == 0) |
3002 | return (-1); | |
3003 | ||
3004 | if (type == ZFS_TYPE_VOLUME) { | |
3005 | /* | |
3006 | * If we are creating a volume, the size and block size must | |
3007 | * satisfy a few restraints. First, the blocksize must be a | |
3008 | * valid block size between SPA_{MIN,MAX}BLOCKSIZE. Second, the | |
3009 | * volsize must be a multiple of the block size, and cannot be | |
3010 | * zero. | |
3011 | */ | |
3012 | if (props == NULL || nvlist_lookup_uint64(props, | |
3013 | zfs_prop_to_name(ZFS_PROP_VOLSIZE), &size) != 0) { | |
3014 | nvlist_free(props); | |
3015 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3016 | "missing volume size")); | |
3017 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
3018 | } | |
3019 | ||
3020 | if ((ret = nvlist_lookup_uint64(props, | |
3021 | zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
3022 | &blocksize)) != 0) { | |
3023 | if (ret == ENOENT) { | |
3024 | blocksize = zfs_prop_default_numeric( | |
3025 | ZFS_PROP_VOLBLOCKSIZE); | |
3026 | } else { | |
3027 | nvlist_free(props); | |
3028 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3029 | "missing volume block size")); | |
3030 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
3031 | } | |
3032 | } | |
3033 | ||
3034 | if (size == 0) { | |
3035 | nvlist_free(props); | |
3036 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3037 | "volume size cannot be zero")); | |
3038 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
3039 | } | |
3040 | ||
3041 | if (size % blocksize != 0) { | |
3042 | nvlist_free(props); | |
3043 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3044 | "volume size must be a multiple of volume block " | |
3045 | "size")); | |
3046 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
3047 | } | |
3048 | } | |
3049 | ||
3050 | if (props && zcmd_write_src_nvlist(hdl, &zc, props) != 0) | |
3051 | return (-1); | |
3052 | nvlist_free(props); | |
3053 | ||
3054 | /* create the dataset */ | |
3055 | ret = zfs_ioctl(hdl, ZFS_IOC_CREATE, &zc); | |
3056 | ||
d603ed6c BB |
3057 | if (ret == 0 && type == ZFS_TYPE_VOLUME) { |
3058 | ret = zvol_create_link(hdl, path); | |
3059 | if (ret) { | |
3060 | (void) zfs_standard_error(hdl, errno, | |
3061 | dgettext(TEXT_DOMAIN, | |
3062 | "Volume successfully created, but device links " | |
3063 | "were not created")); | |
3064 | zcmd_free_nvlists(&zc); | |
3065 | return (-1); | |
3066 | } | |
3067 | } | |
3068 | ||
34dc7c2f BB |
3069 | zcmd_free_nvlists(&zc); |
3070 | ||
3071 | /* check for failure */ | |
3072 | if (ret != 0) { | |
3073 | char parent[ZFS_MAXNAMELEN]; | |
3074 | (void) parent_name(path, parent, sizeof (parent)); | |
3075 | ||
3076 | switch (errno) { | |
3077 | case ENOENT: | |
3078 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3079 | "no such parent '%s'"), parent); | |
3080 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
3081 | ||
3082 | case EINVAL: | |
3083 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3084 | "parent '%s' is not a filesystem"), parent); | |
3085 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
3086 | ||
3087 | case EDOM: | |
3088 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3089 | "volume block size must be power of 2 from " | |
3090 | "%u to %uk"), | |
3091 | (uint_t)SPA_MINBLOCKSIZE, | |
3092 | (uint_t)SPA_MAXBLOCKSIZE >> 10); | |
3093 | ||
3094 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
3095 | ||
3096 | case ENOTSUP: | |
3097 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3098 | "pool must be upgraded to set this " | |
3099 | "property or value")); | |
3100 | return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); | |
3101 | #ifdef _ILP32 | |
3102 | case EOVERFLOW: | |
3103 | /* | |
3104 | * This platform can't address a volume this big. | |
3105 | */ | |
3106 | if (type == ZFS_TYPE_VOLUME) | |
3107 | return (zfs_error(hdl, EZFS_VOLTOOBIG, | |
3108 | errbuf)); | |
3109 | #endif | |
3110 | /* FALLTHROUGH */ | |
3111 | default: | |
3112 | return (zfs_standard_error(hdl, errno, errbuf)); | |
3113 | } | |
3114 | } | |
3115 | ||
3116 | return (0); | |
3117 | } | |
3118 | ||
3119 | /* | |
3120 | * Destroys the given dataset. The caller must make sure that the filesystem | |
3121 | * isn't mounted, and that there are no active dependents. | |
3122 | */ | |
3123 | int | |
45d1cae3 | 3124 | zfs_destroy(zfs_handle_t *zhp, boolean_t defer) |
34dc7c2f | 3125 | { |
2598c001 | 3126 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
3127 | |
3128 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
3129 | ||
3130 | if (ZFS_IS_VOLUME(zhp)) { | |
d603ed6c BB |
3131 | if (zvol_remove_link(zhp->zfs_hdl, zhp->zfs_name) != 0) |
3132 | return (-1); | |
3133 | ||
34dc7c2f BB |
3134 | zc.zc_objset_type = DMU_OST_ZVOL; |
3135 | } else { | |
3136 | zc.zc_objset_type = DMU_OST_ZFS; | |
3137 | } | |
3138 | ||
45d1cae3 | 3139 | zc.zc_defer_destroy = defer; |
34dc7c2f BB |
3140 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_DESTROY, &zc) != 0) { |
3141 | return (zfs_standard_error_fmt(zhp->zfs_hdl, errno, | |
3142 | dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), | |
3143 | zhp->zfs_name)); | |
3144 | } | |
3145 | ||
3146 | remove_mountpoint(zhp); | |
3147 | ||
3148 | return (0); | |
3149 | } | |
3150 | ||
3151 | struct destroydata { | |
330d06f9 MA |
3152 | nvlist_t *nvl; |
3153 | const char *snapname; | |
34dc7c2f BB |
3154 | }; |
3155 | ||
3156 | static int | |
428870ff | 3157 | zfs_check_snap_cb(zfs_handle_t *zhp, void *arg) |
34dc7c2f BB |
3158 | { |
3159 | struct destroydata *dd = arg; | |
3160 | zfs_handle_t *szhp; | |
3161 | char name[ZFS_MAXNAMELEN]; | |
428870ff | 3162 | int rv = 0; |
34dc7c2f | 3163 | |
330d06f9 MA |
3164 | (void) snprintf(name, sizeof (name), |
3165 | "%s@%s", zhp->zfs_name, dd->snapname); | |
34dc7c2f BB |
3166 | |
3167 | szhp = make_dataset_handle(zhp->zfs_hdl, name); | |
3168 | if (szhp) { | |
330d06f9 | 3169 | verify(nvlist_add_boolean(dd->nvl, name) == 0); |
34dc7c2f BB |
3170 | zfs_close(szhp); |
3171 | } | |
3172 | ||
d603ed6c BB |
3173 | if (zhp->zfs_type == ZFS_TYPE_VOLUME) { |
3174 | (void) zvol_remove_link(zhp->zfs_hdl, name); | |
3175 | /* | |
3176 | * NB: this is simply a best-effort. We don't want to | |
3177 | * return an error, because then we wouldn't visit all | |
3178 | * the volumes. | |
3179 | */ | |
3180 | } | |
3181 | ||
330d06f9 MA |
3182 | rv = zfs_iter_filesystems(zhp, zfs_check_snap_cb, dd); |
3183 | zfs_close(zhp); | |
34dc7c2f BB |
3184 | return (rv); |
3185 | } | |
3186 | ||
3187 | /* | |
3188 | * Destroys all snapshots with the given name in zhp & descendants. | |
3189 | */ | |
3190 | int | |
45d1cae3 | 3191 | zfs_destroy_snaps(zfs_handle_t *zhp, char *snapname, boolean_t defer) |
34dc7c2f | 3192 | { |
34dc7c2f BB |
3193 | int ret; |
3194 | struct destroydata dd = { 0 }; | |
3195 | ||
3196 | dd.snapname = snapname; | |
330d06f9 MA |
3197 | verify(nvlist_alloc(&dd.nvl, NV_UNIQUE_NAME, 0) == 0); |
3198 | (void) zfs_check_snap_cb(zfs_handle_dup(zhp), &dd); | |
34dc7c2f | 3199 | |
330d06f9 MA |
3200 | if (nvlist_next_nvpair(dd.nvl, NULL) == NULL) { |
3201 | ret = zfs_standard_error_fmt(zhp->zfs_hdl, ENOENT, | |
34dc7c2f | 3202 | dgettext(TEXT_DOMAIN, "cannot destroy '%s@%s'"), |
330d06f9 MA |
3203 | zhp->zfs_name, snapname); |
3204 | } else { | |
3205 | ret = zfs_destroy_snaps_nvl(zhp, dd.nvl, defer); | |
34dc7c2f | 3206 | } |
330d06f9 MA |
3207 | nvlist_free(dd.nvl); |
3208 | return (ret); | |
3209 | } | |
3210 | ||
3211 | /* | |
3212 | * Destroys all the snapshots named in the nvlist. They must be underneath | |
3213 | * the zhp (either snapshots of it, or snapshots of its descendants). | |
3214 | */ | |
3215 | int | |
3216 | zfs_destroy_snaps_nvl(zfs_handle_t *zhp, nvlist_t *snaps, boolean_t defer) | |
3217 | { | |
3218 | int ret; | |
3219 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; | |
34dc7c2f BB |
3220 | |
3221 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
330d06f9 MA |
3222 | if (zcmd_write_src_nvlist(zhp->zfs_hdl, &zc, snaps) != 0) |
3223 | return (-1); | |
45d1cae3 | 3224 | zc.zc_defer_destroy = defer; |
34dc7c2f | 3225 | |
330d06f9 | 3226 | ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_DESTROY_SNAPS_NVL, &zc); |
34dc7c2f BB |
3227 | if (ret != 0) { |
3228 | char errbuf[1024]; | |
3229 | ||
3230 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
330d06f9 | 3231 | "cannot destroy snapshots in %s"), zc.zc_name); |
34dc7c2f BB |
3232 | |
3233 | switch (errno) { | |
3234 | case EEXIST: | |
3235 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
3236 | "snapshot is cloned")); | |
3237 | return (zfs_error(zhp->zfs_hdl, EZFS_EXISTS, errbuf)); | |
3238 | ||
3239 | default: | |
3240 | return (zfs_standard_error(zhp->zfs_hdl, errno, | |
3241 | errbuf)); | |
3242 | } | |
3243 | } | |
3244 | ||
3245 | return (0); | |
3246 | } | |
3247 | ||
3248 | /* | |
3249 | * Clones the given dataset. The target must be of the same type as the source. | |
3250 | */ | |
3251 | int | |
3252 | zfs_clone(zfs_handle_t *zhp, const char *target, nvlist_t *props) | |
3253 | { | |
2598c001 | 3254 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
3255 | char parent[ZFS_MAXNAMELEN]; |
3256 | int ret; | |
3257 | char errbuf[1024]; | |
3258 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
3259 | zfs_type_t type; | |
3260 | uint64_t zoned; | |
3261 | ||
3262 | assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); | |
3263 | ||
3264 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3265 | "cannot create '%s'"), target); | |
3266 | ||
330d06f9 | 3267 | /* validate the target/clone name */ |
34dc7c2f BB |
3268 | if (!zfs_validate_name(hdl, target, ZFS_TYPE_FILESYSTEM, B_TRUE)) |
3269 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
3270 | ||
3271 | /* validate parents exist */ | |
3272 | if (check_parents(hdl, target, &zoned, B_FALSE, NULL) != 0) | |
3273 | return (-1); | |
3274 | ||
3275 | (void) parent_name(target, parent, sizeof (parent)); | |
3276 | ||
3277 | /* do the clone */ | |
3278 | if (ZFS_IS_VOLUME(zhp)) { | |
3279 | zc.zc_objset_type = DMU_OST_ZVOL; | |
3280 | type = ZFS_TYPE_VOLUME; | |
3281 | } else { | |
3282 | zc.zc_objset_type = DMU_OST_ZFS; | |
3283 | type = ZFS_TYPE_FILESYSTEM; | |
3284 | } | |
3285 | ||
3286 | if (props) { | |
b128c09f BB |
3287 | if ((props = zfs_valid_proplist(hdl, type, props, zoned, |
3288 | zhp, errbuf)) == NULL) | |
34dc7c2f BB |
3289 | return (-1); |
3290 | ||
3291 | if (zcmd_write_src_nvlist(hdl, &zc, props) != 0) { | |
3292 | nvlist_free(props); | |
3293 | return (-1); | |
3294 | } | |
3295 | ||
3296 | nvlist_free(props); | |
3297 | } | |
3298 | ||
3299 | (void) strlcpy(zc.zc_name, target, sizeof (zc.zc_name)); | |
3300 | (void) strlcpy(zc.zc_value, zhp->zfs_name, sizeof (zc.zc_value)); | |
3301 | ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_CREATE, &zc); | |
3302 | ||
3303 | zcmd_free_nvlists(&zc); | |
3304 | ||
3305 | if (ret != 0) { | |
3306 | switch (errno) { | |
3307 | ||
3308 | case ENOENT: | |
3309 | /* | |
3310 | * The parent doesn't exist. We should have caught this | |
3311 | * above, but there may a race condition that has since | |
3312 | * destroyed the parent. | |
3313 | * | |
3314 | * At this point, we don't know whether it's the source | |
3315 | * that doesn't exist anymore, or whether the target | |
3316 | * dataset doesn't exist. | |
3317 | */ | |
3318 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
3319 | "no such parent '%s'"), parent); | |
3320 | return (zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf)); | |
3321 | ||
3322 | case EXDEV: | |
3323 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
3324 | "source and target pools differ")); | |
3325 | return (zfs_error(zhp->zfs_hdl, EZFS_CROSSTARGET, | |
3326 | errbuf)); | |
3327 | ||
3328 | default: | |
3329 | return (zfs_standard_error(zhp->zfs_hdl, errno, | |
3330 | errbuf)); | |
3331 | } | |
d603ed6c BB |
3332 | } else if (ZFS_IS_VOLUME(zhp)) { |
3333 | ret = zvol_create_link(zhp->zfs_hdl, target); | |
34dc7c2f BB |
3334 | } |
3335 | ||
3336 | return (ret); | |
3337 | } | |
3338 | ||
d603ed6c BB |
3339 | typedef struct promote_data { |
3340 | char cb_mountpoint[MAXPATHLEN]; | |
3341 | const char *cb_target; | |
3342 | const char *cb_errbuf; | |
3343 | uint64_t cb_pivot_txg; | |
3344 | } promote_data_t; | |
3345 | ||
3346 | static int | |
3347 | promote_snap_cb(zfs_handle_t *zhp, void *data) | |
3348 | { | |
3349 | promote_data_t *pd = data; | |
3350 | zfs_handle_t *szhp; | |
3351 | char snapname[MAXPATHLEN]; | |
3352 | int rv = 0; | |
3353 | ||
3354 | /* We don't care about snapshots after the pivot point */ | |
3355 | if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > pd->cb_pivot_txg) { | |
3356 | zfs_close(zhp); | |
3357 | return (0); | |
3358 | } | |
3359 | ||
3360 | /* Remove the device link if it's a zvol. */ | |
3361 | if (ZFS_IS_VOLUME(zhp)) | |
3362 | (void) zvol_remove_link(zhp->zfs_hdl, zhp->zfs_name); | |
3363 | ||
3364 | /* Check for conflicting names */ | |
3365 | (void) strlcpy(snapname, pd->cb_target, sizeof (snapname)); | |
3366 | (void) strlcat(snapname, strchr(zhp->zfs_name, '@'), sizeof (snapname)); | |
3367 | szhp = make_dataset_handle(zhp->zfs_hdl, snapname); | |
3368 | if (szhp != NULL) { | |
3369 | zfs_close(szhp); | |
3370 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
3371 | "snapshot name '%s' from origin \n" | |
3372 | "conflicts with '%s' from target"), | |
3373 | zhp->zfs_name, snapname); | |
3374 | rv = zfs_error(zhp->zfs_hdl, EZFS_EXISTS, pd->cb_errbuf); | |
3375 | } | |
3376 | zfs_close(zhp); | |
3377 | return (rv); | |
3378 | } | |
3379 | ||
3380 | static int | |
3381 | promote_snap_done_cb(zfs_handle_t *zhp, void *data) | |
3382 | { | |
3383 | promote_data_t *pd = data; | |
3384 | ||
3385 | /* We don't care about snapshots after the pivot point */ | |
3386 | if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) <= pd->cb_pivot_txg) { | |
3387 | /* Create the device link if it's a zvol. */ | |
3388 | if (ZFS_IS_VOLUME(zhp)) | |
3389 | (void) zvol_create_link(zhp->zfs_hdl, zhp->zfs_name); | |
3390 | } | |
3391 | ||
3392 | zfs_close(zhp); | |
3393 | return (0); | |
3394 | } | |
3395 | ||
34dc7c2f BB |
3396 | /* |
3397 | * Promotes the given clone fs to be the clone parent. | |
3398 | */ | |
3399 | int | |
3400 | zfs_promote(zfs_handle_t *zhp) | |
3401 | { | |
3402 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
2598c001 | 3403 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f | 3404 | char parent[MAXPATHLEN]; |
d603ed6c | 3405 | char *cp; |
34dc7c2f | 3406 | int ret; |
d603ed6c BB |
3407 | zfs_handle_t *pzhp; |
3408 | promote_data_t pd; | |
34dc7c2f BB |
3409 | char errbuf[1024]; |
3410 | ||
3411 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3412 | "cannot promote '%s'"), zhp->zfs_name); | |
3413 | ||
3414 | if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { | |
3415 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3416 | "snapshots can not be promoted")); | |
3417 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
3418 | } | |
3419 | ||
3420 | (void) strlcpy(parent, zhp->zfs_dmustats.dds_origin, sizeof (parent)); | |
3421 | if (parent[0] == '\0') { | |
3422 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3423 | "not a cloned filesystem")); | |
3424 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
3425 | } | |
d603ed6c BB |
3426 | cp = strchr(parent, '@'); |
3427 | *cp = '\0'; | |
3428 | ||
3429 | /* Walk the snapshots we will be moving */ | |
3430 | pzhp = zfs_open(hdl, zhp->zfs_dmustats.dds_origin, ZFS_TYPE_SNAPSHOT); | |
3431 | if (pzhp == NULL) | |
3432 | return (-1); | |
3433 | pd.cb_pivot_txg = zfs_prop_get_int(pzhp, ZFS_PROP_CREATETXG); | |
3434 | zfs_close(pzhp); | |
3435 | pd.cb_target = zhp->zfs_name; | |
3436 | pd.cb_errbuf = errbuf; | |
3437 | pzhp = zfs_open(hdl, parent, ZFS_TYPE_DATASET); | |
3438 | if (pzhp == NULL) | |
3439 | return (-1); | |
3440 | (void) zfs_prop_get(pzhp, ZFS_PROP_MOUNTPOINT, pd.cb_mountpoint, | |
3441 | sizeof (pd.cb_mountpoint), NULL, NULL, 0, FALSE); | |
0cee2406 | 3442 | ret = zfs_iter_snapshots(pzhp, B_FALSE, promote_snap_cb, &pd); |
d603ed6c BB |
3443 | if (ret != 0) { |
3444 | zfs_close(pzhp); | |
3445 | return (-1); | |
3446 | } | |
34dc7c2f | 3447 | |
d603ed6c | 3448 | /* issue the ioctl */ |
34dc7c2f BB |
3449 | (void) strlcpy(zc.zc_value, zhp->zfs_dmustats.dds_origin, |
3450 | sizeof (zc.zc_value)); | |
3451 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
3452 | ret = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc); | |
3453 | ||
3454 | if (ret != 0) { | |
3455 | int save_errno = errno; | |
3456 | ||
0cee2406 PJD |
3457 | (void) zfs_iter_snapshots(pzhp, B_FALSE, promote_snap_done_cb, |
3458 | &pd); | |
d603ed6c BB |
3459 | zfs_close(pzhp); |
3460 | ||
34dc7c2f BB |
3461 | switch (save_errno) { |
3462 | case EEXIST: | |
d603ed6c BB |
3463 | /* |
3464 | * There is a conflicting snapshot name. We | |
3465 | * should have caught this above, but they could | |
3466 | * have renamed something in the mean time. | |
3467 | */ | |
34dc7c2f | 3468 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
428870ff BB |
3469 | "conflicting snapshot '%s' from parent '%s'"), |
3470 | zc.zc_string, parent); | |
34dc7c2f BB |
3471 | return (zfs_error(hdl, EZFS_EXISTS, errbuf)); |
3472 | ||
3473 | default: | |
3474 | return (zfs_standard_error(hdl, save_errno, errbuf)); | |
3475 | } | |
d603ed6c | 3476 | } else { |
0cee2406 PJD |
3477 | (void) zfs_iter_snapshots(zhp, B_FALSE, promote_snap_done_cb, |
3478 | &pd); | |
34dc7c2f | 3479 | } |
d603ed6c BB |
3480 | |
3481 | zfs_close(pzhp); | |
3482 | return (ret); | |
3483 | } | |
3484 | ||
3485 | struct createdata { | |
3486 | const char *cd_snapname; | |
3487 | int cd_ifexists; | |
3488 | }; | |
3489 | ||
3490 | static int | |
3491 | zfs_create_link_cb(zfs_handle_t *zhp, void *arg) | |
3492 | { | |
3493 | struct createdata *cd = arg; | |
3494 | int ret; | |
3495 | ||
3496 | if (zhp->zfs_type == ZFS_TYPE_VOLUME) { | |
3497 | char name[MAXPATHLEN]; | |
3498 | ||
3499 | (void) strlcpy(name, zhp->zfs_name, sizeof (name)); | |
3500 | (void) strlcat(name, "@", sizeof (name)); | |
3501 | (void) strlcat(name, cd->cd_snapname, sizeof (name)); | |
3502 | (void) zvol_create_link_common(zhp->zfs_hdl, name, | |
3503 | cd->cd_ifexists); | |
3504 | /* | |
3505 | * NB: this is simply a best-effort. We don't want to | |
3506 | * return an error, because then we wouldn't visit all | |
3507 | * the volumes. | |
3508 | */ | |
3509 | } | |
3510 | ||
3511 | ret = zfs_iter_filesystems(zhp, zfs_create_link_cb, cd); | |
3512 | ||
3513 | zfs_close(zhp); | |
3514 | ||
34dc7c2f BB |
3515 | return (ret); |
3516 | } | |
3517 | ||
3518 | /* | |
3519 | * Takes a snapshot of the given dataset. | |
3520 | */ | |
3521 | int | |
b128c09f BB |
3522 | zfs_snapshot(libzfs_handle_t *hdl, const char *path, boolean_t recursive, |
3523 | nvlist_t *props) | |
34dc7c2f BB |
3524 | { |
3525 | const char *delim; | |
b128c09f | 3526 | char parent[ZFS_MAXNAMELEN]; |
34dc7c2f | 3527 | zfs_handle_t *zhp; |
2598c001 | 3528 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
3529 | int ret; |
3530 | char errbuf[1024]; | |
3531 | ||
3532 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3533 | "cannot snapshot '%s'"), path); | |
3534 | ||
3535 | /* validate the target name */ | |
3536 | if (!zfs_validate_name(hdl, path, ZFS_TYPE_SNAPSHOT, B_TRUE)) | |
3537 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
3538 | ||
b128c09f BB |
3539 | if (props) { |
3540 | if ((props = zfs_valid_proplist(hdl, ZFS_TYPE_SNAPSHOT, | |
3541 | props, B_FALSE, NULL, errbuf)) == NULL) | |
3542 | return (-1); | |
3543 | ||
3544 | if (zcmd_write_src_nvlist(hdl, &zc, props) != 0) { | |
3545 | nvlist_free(props); | |
3546 | return (-1); | |
3547 | } | |
3548 | ||
3549 | nvlist_free(props); | |
3550 | } | |
3551 | ||
34dc7c2f BB |
3552 | /* make sure the parent exists and is of the appropriate type */ |
3553 | delim = strchr(path, '@'); | |
34dc7c2f BB |
3554 | (void) strncpy(parent, path, delim - path); |
3555 | parent[delim - path] = '\0'; | |
3556 | ||
3557 | if ((zhp = zfs_open(hdl, parent, ZFS_TYPE_FILESYSTEM | | |
3558 | ZFS_TYPE_VOLUME)) == NULL) { | |
b128c09f | 3559 | zcmd_free_nvlists(&zc); |
34dc7c2f BB |
3560 | return (-1); |
3561 | } | |
3562 | ||
3563 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
3564 | (void) strlcpy(zc.zc_value, delim+1, sizeof (zc.zc_value)); | |
3565 | if (ZFS_IS_VOLUME(zhp)) | |
3566 | zc.zc_objset_type = DMU_OST_ZVOL; | |
3567 | else | |
3568 | zc.zc_objset_type = DMU_OST_ZFS; | |
3569 | zc.zc_cookie = recursive; | |
3570 | ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_SNAPSHOT, &zc); | |
3571 | ||
b128c09f BB |
3572 | zcmd_free_nvlists(&zc); |
3573 | ||
34dc7c2f BB |
3574 | /* |
3575 | * if it was recursive, the one that actually failed will be in | |
3576 | * zc.zc_name. | |
3577 | */ | |
d603ed6c | 3578 | if (ret != 0) |
34dc7c2f BB |
3579 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, |
3580 | "cannot create snapshot '%s@%s'"), zc.zc_name, zc.zc_value); | |
d603ed6c BB |
3581 | |
3582 | if (ret == 0 && recursive) { | |
3583 | struct createdata cd; | |
3584 | ||
3585 | cd.cd_snapname = delim + 1; | |
3586 | cd.cd_ifexists = B_FALSE; | |
3587 | (void) zfs_iter_filesystems(zhp, zfs_create_link_cb, &cd); | |
3588 | } | |
3589 | if (ret == 0 && zhp->zfs_type == ZFS_TYPE_VOLUME) { | |
3590 | ret = zvol_create_link(zhp->zfs_hdl, path); | |
3591 | if (ret != 0) { | |
3592 | (void) zfs_standard_error(hdl, errno, | |
3593 | dgettext(TEXT_DOMAIN, | |
3594 | "Volume successfully snapshotted, but device links " | |
3595 | "were not created")); | |
3596 | zfs_close(zhp); | |
3597 | return (-1); | |
3598 | } | |
428870ff | 3599 | } |
34dc7c2f | 3600 | |
d603ed6c BB |
3601 | if (ret != 0) |
3602 | (void) zfs_standard_error(hdl, errno, errbuf); | |
3603 | ||
34dc7c2f BB |
3604 | zfs_close(zhp); |
3605 | ||
3606 | return (ret); | |
3607 | } | |
3608 | ||
3609 | /* | |
3610 | * Destroy any more recent snapshots. We invoke this callback on any dependents | |
3611 | * of the snapshot first. If the 'cb_dependent' member is non-zero, then this | |
3612 | * is a dependent and we should just destroy it without checking the transaction | |
3613 | * group. | |
3614 | */ | |
3615 | typedef struct rollback_data { | |
3616 | const char *cb_target; /* the snapshot */ | |
3617 | uint64_t cb_create; /* creation time reference */ | |
3618 | boolean_t cb_error; | |
3619 | boolean_t cb_dependent; | |
3620 | boolean_t cb_force; | |
3621 | } rollback_data_t; | |
3622 | ||
3623 | static int | |
3624 | rollback_destroy(zfs_handle_t *zhp, void *data) | |
3625 | { | |
3626 | rollback_data_t *cbp = data; | |
3627 | ||
3628 | if (!cbp->cb_dependent) { | |
3629 | if (strcmp(zhp->zfs_name, cbp->cb_target) != 0 && | |
3630 | zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT && | |
3631 | zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > | |
3632 | cbp->cb_create) { | |
3633 | char *logstr; | |
3634 | ||
3635 | cbp->cb_dependent = B_TRUE; | |
3636 | cbp->cb_error |= zfs_iter_dependents(zhp, B_FALSE, | |
3637 | rollback_destroy, cbp); | |
3638 | cbp->cb_dependent = B_FALSE; | |
3639 | ||
3640 | logstr = zhp->zfs_hdl->libzfs_log_str; | |
3641 | zhp->zfs_hdl->libzfs_log_str = NULL; | |
45d1cae3 | 3642 | cbp->cb_error |= zfs_destroy(zhp, B_FALSE); |
34dc7c2f BB |
3643 | zhp->zfs_hdl->libzfs_log_str = logstr; |
3644 | } | |
3645 | } else { | |
3646 | /* We must destroy this clone; first unmount it */ | |
3647 | prop_changelist_t *clp; | |
3648 | ||
b128c09f | 3649 | clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, |
34dc7c2f BB |
3650 | cbp->cb_force ? MS_FORCE: 0); |
3651 | if (clp == NULL || changelist_prefix(clp) != 0) { | |
3652 | cbp->cb_error = B_TRUE; | |
3653 | zfs_close(zhp); | |
3654 | return (0); | |
3655 | } | |
45d1cae3 | 3656 | if (zfs_destroy(zhp, B_FALSE) != 0) |
34dc7c2f BB |
3657 | cbp->cb_error = B_TRUE; |
3658 | else | |
3659 | changelist_remove(clp, zhp->zfs_name); | |
3660 | (void) changelist_postfix(clp); | |
3661 | changelist_free(clp); | |
3662 | } | |
3663 | ||
3664 | zfs_close(zhp); | |
3665 | return (0); | |
3666 | } | |
3667 | ||
3668 | /* | |
3669 | * Given a dataset, rollback to a specific snapshot, discarding any | |
3670 | * data changes since then and making it the active dataset. | |
3671 | * | |
3672 | * Any snapshots more recent than the target are destroyed, along with | |
3673 | * their dependents. | |
3674 | */ | |
3675 | int | |
3676 | zfs_rollback(zfs_handle_t *zhp, zfs_handle_t *snap, boolean_t force) | |
3677 | { | |
3678 | rollback_data_t cb = { 0 }; | |
3679 | int err; | |
2598c001 | 3680 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f | 3681 | boolean_t restore_resv = 0; |
d4ed6673 BB |
3682 | uint64_t old_volsize = 0, new_volsize; |
3683 | zfs_prop_t resv_prop = { 0 }; | |
34dc7c2f BB |
3684 | |
3685 | assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM || | |
3686 | zhp->zfs_type == ZFS_TYPE_VOLUME); | |
3687 | ||
3688 | /* | |
3689 | * Destroy all recent snapshots and its dependends. | |
3690 | */ | |
3691 | cb.cb_force = force; | |
3692 | cb.cb_target = snap->zfs_name; | |
3693 | cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); | |
3694 | (void) zfs_iter_children(zhp, rollback_destroy, &cb); | |
3695 | ||
3696 | if (cb.cb_error) | |
3697 | return (-1); | |
3698 | ||
3699 | /* | |
3700 | * Now that we have verified that the snapshot is the latest, | |
3701 | * rollback to the given snapshot. | |
3702 | */ | |
3703 | ||
3704 | if (zhp->zfs_type == ZFS_TYPE_VOLUME) { | |
d603ed6c BB |
3705 | if (zvol_remove_link(zhp->zfs_hdl, zhp->zfs_name) != 0) |
3706 | return (-1); | |
34dc7c2f BB |
3707 | if (zfs_which_resv_prop(zhp, &resv_prop) < 0) |
3708 | return (-1); | |
3709 | old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); | |
3710 | restore_resv = | |
3711 | (old_volsize == zfs_prop_get_int(zhp, resv_prop)); | |
3712 | } | |
3713 | ||
3714 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
3715 | ||
3716 | if (ZFS_IS_VOLUME(zhp)) | |
3717 | zc.zc_objset_type = DMU_OST_ZVOL; | |
3718 | else | |
3719 | zc.zc_objset_type = DMU_OST_ZFS; | |
3720 | ||
3721 | /* | |
3722 | * We rely on zfs_iter_children() to verify that there are no | |
3723 | * newer snapshots for the given dataset. Therefore, we can | |
3724 | * simply pass the name on to the ioctl() call. There is still | |
3725 | * an unlikely race condition where the user has taken a | |
3726 | * snapshot since we verified that this was the most recent. | |
3727 | * | |
3728 | */ | |
3729 | if ((err = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_ROLLBACK, &zc)) != 0) { | |
3730 | (void) zfs_standard_error_fmt(zhp->zfs_hdl, errno, | |
3731 | dgettext(TEXT_DOMAIN, "cannot rollback '%s'"), | |
3732 | zhp->zfs_name); | |
3733 | return (err); | |
3734 | } | |
3735 | ||
3736 | /* | |
3737 | * For volumes, if the pre-rollback volsize matched the pre- | |
3738 | * rollback reservation and the volsize has changed then set | |
3739 | * the reservation property to the post-rollback volsize. | |
3740 | * Make a new handle since the rollback closed the dataset. | |
3741 | */ | |
3742 | if ((zhp->zfs_type == ZFS_TYPE_VOLUME) && | |
3743 | (zhp = make_dataset_handle(zhp->zfs_hdl, zhp->zfs_name))) { | |
d603ed6c BB |
3744 | if ((err = zvol_create_link(zhp->zfs_hdl, zhp->zfs_name))) { |
3745 | zfs_close(zhp); | |
3746 | return (err); | |
3747 | } | |
34dc7c2f BB |
3748 | if (restore_resv) { |
3749 | new_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); | |
3750 | if (old_volsize != new_volsize) | |
3751 | err = zfs_prop_set_int(zhp, resv_prop, | |
3752 | new_volsize); | |
3753 | } | |
3754 | zfs_close(zhp); | |
3755 | } | |
3756 | return (err); | |
3757 | } | |
3758 | ||
34dc7c2f BB |
3759 | /* |
3760 | * Renames the given dataset. | |
3761 | */ | |
3762 | int | |
3763 | zfs_rename(zfs_handle_t *zhp, const char *target, boolean_t recursive) | |
3764 | { | |
3765 | int ret; | |
2598c001 | 3766 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
3767 | char *delim; |
3768 | prop_changelist_t *cl = NULL; | |
3769 | zfs_handle_t *zhrp = NULL; | |
3770 | char *parentname = NULL; | |
3771 | char parent[ZFS_MAXNAMELEN]; | |
3772 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
3773 | char errbuf[1024]; | |
3774 | ||
3775 | /* if we have the same exact name, just return success */ | |
3776 | if (strcmp(zhp->zfs_name, target) == 0) | |
3777 | return (0); | |
3778 | ||
3779 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3780 | "cannot rename to '%s'"), target); | |
3781 | ||
3782 | /* | |
3783 | * Make sure the target name is valid | |
3784 | */ | |
3785 | if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { | |
3786 | if ((strchr(target, '@') == NULL) || | |
3787 | *target == '@') { | |
3788 | /* | |
3789 | * Snapshot target name is abbreviated, | |
3790 | * reconstruct full dataset name | |
3791 | */ | |
3792 | (void) strlcpy(parent, zhp->zfs_name, | |
3793 | sizeof (parent)); | |
3794 | delim = strchr(parent, '@'); | |
3795 | if (strchr(target, '@') == NULL) | |
3796 | *(++delim) = '\0'; | |
3797 | else | |
3798 | *delim = '\0'; | |
3799 | (void) strlcat(parent, target, sizeof (parent)); | |
3800 | target = parent; | |
3801 | } else { | |
3802 | /* | |
3803 | * Make sure we're renaming within the same dataset. | |
3804 | */ | |
3805 | delim = strchr(target, '@'); | |
3806 | if (strncmp(zhp->zfs_name, target, delim - target) | |
3807 | != 0 || zhp->zfs_name[delim - target] != '@') { | |
3808 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3809 | "snapshots must be part of same " | |
3810 | "dataset")); | |
3811 | return (zfs_error(hdl, EZFS_CROSSTARGET, | |
3812 | errbuf)); | |
3813 | } | |
3814 | } | |
3815 | if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) | |
3816 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
3817 | } else { | |
3818 | if (recursive) { | |
3819 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3820 | "recursive rename must be a snapshot")); | |
3821 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
3822 | } | |
3823 | ||
3824 | if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) | |
3825 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
34dc7c2f BB |
3826 | |
3827 | /* validate parents */ | |
428870ff | 3828 | if (check_parents(hdl, target, NULL, B_FALSE, NULL) != 0) |
34dc7c2f BB |
3829 | return (-1); |
3830 | ||
34dc7c2f BB |
3831 | /* make sure we're in the same pool */ |
3832 | verify((delim = strchr(target, '/')) != NULL); | |
3833 | if (strncmp(zhp->zfs_name, target, delim - target) != 0 || | |
3834 | zhp->zfs_name[delim - target] != '/') { | |
3835 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3836 | "datasets must be within same pool")); | |
3837 | return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); | |
3838 | } | |
3839 | ||
3840 | /* new name cannot be a child of the current dataset name */ | |
428870ff | 3841 | if (is_descendant(zhp->zfs_name, target)) { |
34dc7c2f | 3842 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
428870ff | 3843 | "New dataset name cannot be a descendant of " |
34dc7c2f BB |
3844 | "current dataset name")); |
3845 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
3846 | } | |
3847 | } | |
3848 | ||
3849 | (void) snprintf(errbuf, sizeof (errbuf), | |
3850 | dgettext(TEXT_DOMAIN, "cannot rename '%s'"), zhp->zfs_name); | |
3851 | ||
3852 | if (getzoneid() == GLOBAL_ZONEID && | |
3853 | zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { | |
3854 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3855 | "dataset is used in a non-global zone")); | |
3856 | return (zfs_error(hdl, EZFS_ZONED, errbuf)); | |
3857 | } | |
3858 | ||
3859 | if (recursive) { | |
d603ed6c | 3860 | struct destroydata dd; |
34dc7c2f BB |
3861 | |
3862 | parentname = zfs_strdup(zhp->zfs_hdl, zhp->zfs_name); | |
3863 | if (parentname == NULL) { | |
3864 | ret = -1; | |
3865 | goto error; | |
3866 | } | |
3867 | delim = strchr(parentname, '@'); | |
3868 | *delim = '\0'; | |
3869 | zhrp = zfs_open(zhp->zfs_hdl, parentname, ZFS_TYPE_DATASET); | |
3870 | if (zhrp == NULL) { | |
3871 | ret = -1; | |
3872 | goto error; | |
3873 | } | |
3874 | ||
d603ed6c | 3875 | dd.snapname = delim + 1; |
d603ed6c BB |
3876 | |
3877 | /* We remove any zvol links prior to renaming them */ | |
cf997d79 | 3878 | verify(nvlist_alloc(&dd.nvl, NV_UNIQUE_NAME, 0) == 0); |
d603ed6c | 3879 | ret = zfs_iter_filesystems(zhrp, zfs_check_snap_cb, &dd); |
cf997d79 | 3880 | nvlist_free(dd.nvl); |
d603ed6c BB |
3881 | if (ret) { |
3882 | goto error; | |
3883 | } | |
34dc7c2f | 3884 | } else { |
b128c09f | 3885 | if ((cl = changelist_gather(zhp, ZFS_PROP_NAME, 0, 0)) == NULL) |
34dc7c2f BB |
3886 | return (-1); |
3887 | ||
3888 | if (changelist_haszonedchild(cl)) { | |
3889 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3890 | "child dataset with inherited mountpoint is used " | |
3891 | "in a non-global zone")); | |
3892 | (void) zfs_error(hdl, EZFS_ZONED, errbuf); | |
d4ed6673 | 3893 | ret = -1; |
34dc7c2f BB |
3894 | goto error; |
3895 | } | |
3896 | ||
3897 | if ((ret = changelist_prefix(cl)) != 0) | |
3898 | goto error; | |
3899 | } | |
3900 | ||
3901 | if (ZFS_IS_VOLUME(zhp)) | |
3902 | zc.zc_objset_type = DMU_OST_ZVOL; | |
3903 | else | |
3904 | zc.zc_objset_type = DMU_OST_ZFS; | |
3905 | ||
3906 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
3907 | (void) strlcpy(zc.zc_value, target, sizeof (zc.zc_value)); | |
3908 | ||
3909 | zc.zc_cookie = recursive; | |
3910 | ||
3911 | if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_RENAME, &zc)) != 0) { | |
3912 | /* | |
3913 | * if it was recursive, the one that actually failed will | |
3914 | * be in zc.zc_name | |
3915 | */ | |
3916 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3917 | "cannot rename '%s'"), zc.zc_name); | |
3918 | ||
3919 | if (recursive && errno == EEXIST) { | |
3920 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3921 | "a child dataset already has a snapshot " | |
3922 | "with the new name")); | |
3923 | (void) zfs_error(hdl, EZFS_EXISTS, errbuf); | |
3924 | } else { | |
3925 | (void) zfs_standard_error(zhp->zfs_hdl, errno, errbuf); | |
3926 | } | |
3927 | ||
3928 | /* | |
3929 | * On failure, we still want to remount any filesystems that | |
3930 | * were previously mounted, so we don't alter the system state. | |
3931 | */ | |
d603ed6c BB |
3932 | if (recursive) { |
3933 | struct createdata cd; | |
3934 | ||
3935 | /* only create links for datasets that had existed */ | |
3936 | cd.cd_snapname = delim + 1; | |
3937 | cd.cd_ifexists = B_TRUE; | |
3938 | (void) zfs_iter_filesystems(zhrp, zfs_create_link_cb, | |
3939 | &cd); | |
3940 | } else { | |
34dc7c2f | 3941 | (void) changelist_postfix(cl); |
d603ed6c | 3942 | } |
34dc7c2f | 3943 | } else { |
d603ed6c BB |
3944 | if (recursive) { |
3945 | struct createdata cd; | |
3946 | ||
3947 | /* only create links for datasets that had existed */ | |
3948 | cd.cd_snapname = strchr(target, '@') + 1; | |
3949 | cd.cd_ifexists = B_TRUE; | |
3950 | ret = zfs_iter_filesystems(zhrp, zfs_create_link_cb, | |
3951 | &cd); | |
3952 | } else { | |
34dc7c2f BB |
3953 | changelist_rename(cl, zfs_get_name(zhp), target); |
3954 | ret = changelist_postfix(cl); | |
3955 | } | |
3956 | } | |
3957 | ||
3958 | error: | |
3959 | if (parentname) { | |
3960 | free(parentname); | |
3961 | } | |
3962 | if (zhrp) { | |
3963 | zfs_close(zhrp); | |
3964 | } | |
3965 | if (cl) { | |
3966 | changelist_free(cl); | |
3967 | } | |
3968 | return (ret); | |
3969 | } | |
3970 | ||
d603ed6c BB |
3971 | /* |
3972 | * Given a zvol dataset, issue the ioctl to create the appropriate minor node, | |
3973 | * and wait briefly for udev to create the /dev link. | |
3974 | */ | |
3975 | int | |
3976 | zvol_create_link(libzfs_handle_t *hdl, const char *dataset) | |
34dc7c2f | 3977 | { |
d603ed6c BB |
3978 | return (zvol_create_link_common(hdl, dataset, B_FALSE)); |
3979 | } | |
3980 | ||
3981 | static int | |
3982 | zvol_create_link_common(libzfs_handle_t *hdl, const char *dataset, int ifexists) | |
3983 | { | |
3984 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; | |
3985 | char path[MAXPATHLEN]; | |
3986 | int error; | |
3987 | ||
3988 | (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); | |
3989 | ||
3990 | /* | |
3991 | * Issue the appropriate ioctl. | |
3992 | */ | |
3993 | if (ioctl(hdl->libzfs_fd, ZFS_IOC_CREATE_MINOR, &zc) != 0) { | |
3994 | switch (errno) { | |
3995 | case EEXIST: | |
3996 | /* | |
3997 | * Silently ignore the case where the link already | |
3998 | * exists. This allows 'zfs volinit' to be run multiple | |
3999 | * times without errors. | |
4000 | */ | |
4001 | return (0); | |
4002 | ||
4003 | case ENOENT: | |
4004 | /* | |
4005 | * Dataset does not exist in the kernel. If we | |
4006 | * don't care (see zfs_rename), then ignore the | |
4007 | * error quietly. | |
4008 | */ | |
4009 | if (ifexists) { | |
4010 | return (0); | |
4011 | } | |
4012 | ||
4013 | /* FALLTHROUGH */ | |
4014 | ||
4015 | default: | |
4016 | return (zfs_standard_error_fmt(hdl, errno, | |
4017 | dgettext(TEXT_DOMAIN, "cannot create device links " | |
4018 | "for '%s'"), dataset)); | |
4019 | } | |
4020 | } | |
4021 | ||
4022 | /* | |
4023 | * Wait up to 10 seconds for udev to create the device. | |
4024 | */ | |
4025 | (void) snprintf(path, sizeof (path), "%s/%s", ZVOL_DIR, dataset); | |
4026 | error = zpool_label_disk_wait(path, 10000); | |
4027 | if (error) | |
4028 | (void) printf(gettext("%s may not be immediately " | |
4029 | "available\n"), path); | |
4030 | ||
4031 | return (0); | |
4032 | } | |
4033 | ||
4034 | /* | |
4035 | * Remove a minor node for the given zvol and the associated /dev links. | |
4036 | */ | |
4037 | int | |
4038 | zvol_remove_link(libzfs_handle_t *hdl, const char *dataset) | |
4039 | { | |
4040 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; | |
c6327b63 DV |
4041 | int timeout = 3000; /* in milliseconds */ |
4042 | int error = 0; | |
4043 | int i; | |
d603ed6c BB |
4044 | |
4045 | (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); | |
4046 | ||
c6327b63 DV |
4047 | /* |
4048 | * Due to concurrent updates by udev the device may be reported as | |
4049 | * busy. In this case don't immediately fail. Instead briefly delay | |
4050 | * and retry the ioctl() which is now likely to succeed. If unable | |
4051 | * remove the link after timeout milliseconds return the failure. | |
4052 | */ | |
4053 | for (i = 0; i < timeout; i++) { | |
4054 | error = ioctl(hdl->libzfs_fd, ZFS_IOC_REMOVE_MINOR, &zc); | |
4055 | if (error && errno == EBUSY) { | |
4056 | usleep(1000); | |
4057 | continue; | |
4058 | } else { | |
4059 | break; | |
4060 | } | |
4061 | } | |
4062 | ||
4063 | if (error) { | |
d603ed6c BB |
4064 | switch (errno) { |
4065 | case ENXIO: | |
4066 | /* | |
4067 | * Silently ignore the case where the link no longer | |
4068 | * exists, so that 'zfs volfini' can be run multiple | |
4069 | * times without errors. | |
4070 | */ | |
4071 | return (0); | |
4072 | ||
4073 | default: | |
4074 | return (zfs_standard_error_fmt(hdl, errno, | |
4075 | dgettext(TEXT_DOMAIN, "cannot remove device " | |
bc98d6c8 | 4076 | "links for '%s': %s"), dataset, strerror(errno))); |
d603ed6c BB |
4077 | } |
4078 | } | |
4079 | ||
4080 | return (0); | |
34dc7c2f BB |
4081 | } |
4082 | ||
4083 | nvlist_t * | |
d603ed6c | 4084 | zfs_get_user_props(zfs_handle_t *zhp) |
34dc7c2f | 4085 | { |
d603ed6c | 4086 | return (zhp->zfs_user_props); |
34dc7c2f BB |
4087 | } |
4088 | ||
4089 | /* | |
4090 | * This function is used by 'zfs list' to determine the exact set of columns to | |
4091 | * display, and their maximum widths. This does two main things: | |
4092 | * | |
4093 | * - If this is a list of all properties, then expand the list to include | |
4094 | * all native properties, and set a flag so that for each dataset we look | |
4095 | * for new unique user properties and add them to the list. | |
4096 | * | |
4097 | * - For non fixed-width properties, keep track of the maximum width seen | |
428870ff BB |
4098 | * so that we can size the column appropriately. If the user has |
4099 | * requested received property values, we also need to compute the width | |
4100 | * of the RECEIVED column. | |
34dc7c2f BB |
4101 | */ |
4102 | int | |
428870ff | 4103 | zfs_expand_proplist(zfs_handle_t *zhp, zprop_list_t **plp, boolean_t received) |
34dc7c2f BB |
4104 | { |
4105 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
4106 | zprop_list_t *entry; | |
4107 | zprop_list_t **last, **start; | |
4108 | nvlist_t *userprops, *propval; | |
4109 | nvpair_t *elem; | |
4110 | char *strval; | |
4111 | char buf[ZFS_MAXPROPLEN]; | |
4112 | ||
4113 | if (zprop_expand_list(hdl, plp, ZFS_TYPE_DATASET) != 0) | |
4114 | return (-1); | |
4115 | ||
4116 | userprops = zfs_get_user_props(zhp); | |
4117 | ||
4118 | entry = *plp; | |
4119 | if (entry->pl_all && nvlist_next_nvpair(userprops, NULL) != NULL) { | |
4120 | /* | |
4121 | * Go through and add any user properties as necessary. We | |
4122 | * start by incrementing our list pointer to the first | |
4123 | * non-native property. | |
4124 | */ | |
4125 | start = plp; | |
4126 | while (*start != NULL) { | |
4127 | if ((*start)->pl_prop == ZPROP_INVAL) | |
4128 | break; | |
4129 | start = &(*start)->pl_next; | |
4130 | } | |
4131 | ||
4132 | elem = NULL; | |
4133 | while ((elem = nvlist_next_nvpair(userprops, elem)) != NULL) { | |
4134 | /* | |
4135 | * See if we've already found this property in our list. | |
4136 | */ | |
4137 | for (last = start; *last != NULL; | |
4138 | last = &(*last)->pl_next) { | |
4139 | if (strcmp((*last)->pl_user_prop, | |
4140 | nvpair_name(elem)) == 0) | |
4141 | break; | |
4142 | } | |
4143 | ||
4144 | if (*last == NULL) { | |
4145 | if ((entry = zfs_alloc(hdl, | |
4146 | sizeof (zprop_list_t))) == NULL || | |
4147 | ((entry->pl_user_prop = zfs_strdup(hdl, | |
4148 | nvpair_name(elem)))) == NULL) { | |
4149 | free(entry); | |
4150 | return (-1); | |
4151 | } | |
4152 | ||
4153 | entry->pl_prop = ZPROP_INVAL; | |
4154 | entry->pl_width = strlen(nvpair_name(elem)); | |
4155 | entry->pl_all = B_TRUE; | |
4156 | *last = entry; | |
4157 | } | |
4158 | } | |
4159 | } | |
4160 | ||
4161 | /* | |
4162 | * Now go through and check the width of any non-fixed columns | |
4163 | */ | |
4164 | for (entry = *plp; entry != NULL; entry = entry->pl_next) { | |
4165 | if (entry->pl_fixed) | |
4166 | continue; | |
4167 | ||
4168 | if (entry->pl_prop != ZPROP_INVAL) { | |
4169 | if (zfs_prop_get(zhp, entry->pl_prop, | |
4170 | buf, sizeof (buf), NULL, NULL, 0, B_FALSE) == 0) { | |
4171 | if (strlen(buf) > entry->pl_width) | |
4172 | entry->pl_width = strlen(buf); | |
4173 | } | |
428870ff BB |
4174 | if (received && zfs_prop_get_recvd(zhp, |
4175 | zfs_prop_to_name(entry->pl_prop), | |
4176 | buf, sizeof (buf), B_FALSE) == 0) | |
4177 | if (strlen(buf) > entry->pl_recvd_width) | |
4178 | entry->pl_recvd_width = strlen(buf); | |
4179 | } else { | |
4180 | if (nvlist_lookup_nvlist(userprops, entry->pl_user_prop, | |
4181 | &propval) == 0) { | |
4182 | verify(nvlist_lookup_string(propval, | |
4183 | ZPROP_VALUE, &strval) == 0); | |
4184 | if (strlen(strval) > entry->pl_width) | |
4185 | entry->pl_width = strlen(strval); | |
4186 | } | |
4187 | if (received && zfs_prop_get_recvd(zhp, | |
4188 | entry->pl_user_prop, | |
4189 | buf, sizeof (buf), B_FALSE) == 0) | |
4190 | if (strlen(buf) > entry->pl_recvd_width) | |
4191 | entry->pl_recvd_width = strlen(buf); | |
34dc7c2f BB |
4192 | } |
4193 | } | |
4194 | ||
4195 | return (0); | |
4196 | } | |
4197 | ||
9babb374 BB |
4198 | void |
4199 | zfs_prune_proplist(zfs_handle_t *zhp, uint8_t *props) | |
4200 | { | |
4201 | nvpair_t *curr; | |
4202 | ||
4203 | /* | |
4204 | * Keep a reference to the props-table against which we prune the | |
4205 | * properties. | |
4206 | */ | |
4207 | zhp->zfs_props_table = props; | |
4208 | ||
4209 | curr = nvlist_next_nvpair(zhp->zfs_props, NULL); | |
4210 | ||
4211 | while (curr) { | |
4212 | zfs_prop_t zfs_prop = zfs_name_to_prop(nvpair_name(curr)); | |
4213 | nvpair_t *next = nvlist_next_nvpair(zhp->zfs_props, curr); | |
4214 | ||
4215 | /* | |
428870ff BB |
4216 | * User properties will result in ZPROP_INVAL, and since we |
4217 | * only know how to prune standard ZFS properties, we always | |
4218 | * leave these in the list. This can also happen if we | |
4219 | * encounter an unknown DSL property (when running older | |
4220 | * software, for example). | |
9babb374 BB |
4221 | */ |
4222 | if (zfs_prop != ZPROP_INVAL && props[zfs_prop] == B_FALSE) | |
4223 | (void) nvlist_remove(zhp->zfs_props, | |
4224 | nvpair_name(curr), nvpair_type(curr)); | |
4225 | curr = next; | |
4226 | } | |
4227 | } | |
4228 | ||
4229 | static int | |
4230 | zfs_smb_acl_mgmt(libzfs_handle_t *hdl, char *dataset, char *path, | |
4231 | zfs_smb_acl_op_t cmd, char *resource1, char *resource2) | |
4232 | { | |
2598c001 | 4233 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
9babb374 BB |
4234 | nvlist_t *nvlist = NULL; |
4235 | int error; | |
4236 | ||
4237 | (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); | |
4238 | (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); | |
4239 | zc.zc_cookie = (uint64_t)cmd; | |
4240 | ||
4241 | if (cmd == ZFS_SMB_ACL_RENAME) { | |
4242 | if (nvlist_alloc(&nvlist, NV_UNIQUE_NAME, 0) != 0) { | |
4243 | (void) no_memory(hdl); | |
a6098088 | 4244 | return (-1); |
9babb374 BB |
4245 | } |
4246 | } | |
4247 | ||
4248 | switch (cmd) { | |
4249 | case ZFS_SMB_ACL_ADD: | |
4250 | case ZFS_SMB_ACL_REMOVE: | |
4251 | (void) strlcpy(zc.zc_string, resource1, sizeof (zc.zc_string)); | |
4252 | break; | |
4253 | case ZFS_SMB_ACL_RENAME: | |
4254 | if (nvlist_add_string(nvlist, ZFS_SMB_ACL_SRC, | |
4255 | resource1) != 0) { | |
4256 | (void) no_memory(hdl); | |
4257 | return (-1); | |
4258 | } | |
4259 | if (nvlist_add_string(nvlist, ZFS_SMB_ACL_TARGET, | |
4260 | resource2) != 0) { | |
4261 | (void) no_memory(hdl); | |
4262 | return (-1); | |
4263 | } | |
4264 | if (zcmd_write_src_nvlist(hdl, &zc, nvlist) != 0) { | |
4265 | nvlist_free(nvlist); | |
4266 | return (-1); | |
4267 | } | |
4268 | break; | |
4269 | case ZFS_SMB_ACL_PURGE: | |
4270 | break; | |
4271 | default: | |
4272 | return (-1); | |
4273 | } | |
4274 | error = ioctl(hdl->libzfs_fd, ZFS_IOC_SMB_ACL, &zc); | |
4275 | if (nvlist) | |
4276 | nvlist_free(nvlist); | |
4277 | return (error); | |
4278 | } | |
4279 | ||
4280 | int | |
4281 | zfs_smb_acl_add(libzfs_handle_t *hdl, char *dataset, | |
4282 | char *path, char *resource) | |
4283 | { | |
4284 | return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_ADD, | |
4285 | resource, NULL)); | |
4286 | } | |
4287 | ||
4288 | int | |
4289 | zfs_smb_acl_remove(libzfs_handle_t *hdl, char *dataset, | |
4290 | char *path, char *resource) | |
4291 | { | |
4292 | return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_REMOVE, | |
4293 | resource, NULL)); | |
4294 | } | |
4295 | ||
4296 | int | |
4297 | zfs_smb_acl_purge(libzfs_handle_t *hdl, char *dataset, char *path) | |
4298 | { | |
4299 | return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_PURGE, | |
4300 | NULL, NULL)); | |
4301 | } | |
4302 | ||
4303 | int | |
4304 | zfs_smb_acl_rename(libzfs_handle_t *hdl, char *dataset, char *path, | |
4305 | char *oldname, char *newname) | |
4306 | { | |
4307 | return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_RENAME, | |
4308 | oldname, newname)); | |
4309 | } | |
4310 | ||
4311 | int | |
4312 | zfs_userspace(zfs_handle_t *zhp, zfs_userquota_prop_t type, | |
4313 | zfs_userspace_cb_t func, void *arg) | |
4314 | { | |
2598c001 | 4315 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
9babb374 BB |
4316 | int error; |
4317 | zfs_useracct_t buf[100]; | |
4318 | ||
330d06f9 | 4319 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); |
9babb374 BB |
4320 | |
4321 | zc.zc_objset_type = type; | |
4322 | zc.zc_nvlist_dst = (uintptr_t)buf; | |
4323 | ||
4324 | /* CONSTCOND */ | |
4325 | while (1) { | |
4326 | zfs_useracct_t *zua = buf; | |
4327 | ||
4328 | zc.zc_nvlist_dst_size = sizeof (buf); | |
4329 | error = ioctl(zhp->zfs_hdl->libzfs_fd, | |
4330 | ZFS_IOC_USERSPACE_MANY, &zc); | |
4331 | if (error || zc.zc_nvlist_dst_size == 0) | |
4332 | break; | |
4333 | ||
4334 | while (zc.zc_nvlist_dst_size > 0) { | |
4335 | error = func(arg, zua->zu_domain, zua->zu_rid, | |
4336 | zua->zu_space); | |
4337 | if (error != 0) | |
4338 | return (error); | |
4339 | zua++; | |
4340 | zc.zc_nvlist_dst_size -= sizeof (zfs_useracct_t); | |
4341 | } | |
4342 | } | |
4343 | ||
4344 | return (error); | |
4345 | } | |
45d1cae3 BB |
4346 | |
4347 | int | |
4348 | zfs_hold(zfs_handle_t *zhp, const char *snapname, const char *tag, | |
572e2857 BB |
4349 | boolean_t recursive, boolean_t temphold, boolean_t enoent_ok, |
4350 | int cleanup_fd, uint64_t dsobj, uint64_t createtxg) | |
45d1cae3 | 4351 | { |
2598c001 | 4352 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
45d1cae3 BB |
4353 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
4354 | ||
572e2857 BB |
4355 | ASSERT(!recursive || dsobj == 0); |
4356 | ||
45d1cae3 BB |
4357 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); |
4358 | (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); | |
428870ff BB |
4359 | if (strlcpy(zc.zc_string, tag, sizeof (zc.zc_string)) |
4360 | >= sizeof (zc.zc_string)) | |
4361 | return (zfs_error(hdl, EZFS_TAGTOOLONG, tag)); | |
45d1cae3 | 4362 | zc.zc_cookie = recursive; |
428870ff | 4363 | zc.zc_temphold = temphold; |
572e2857 BB |
4364 | zc.zc_cleanup_fd = cleanup_fd; |
4365 | zc.zc_sendobj = dsobj; | |
4366 | zc.zc_createtxg = createtxg; | |
45d1cae3 BB |
4367 | |
4368 | if (zfs_ioctl(hdl, ZFS_IOC_HOLD, &zc) != 0) { | |
4369 | char errbuf[ZFS_MAXNAMELEN+32]; | |
4370 | ||
4371 | /* | |
4372 | * if it was recursive, the one that actually failed will be in | |
4373 | * zc.zc_name. | |
4374 | */ | |
4375 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
4376 | "cannot hold '%s@%s'"), zc.zc_name, snapname); | |
4377 | switch (errno) { | |
428870ff BB |
4378 | case E2BIG: |
4379 | /* | |
4380 | * Temporary tags wind up having the ds object id | |
4381 | * prepended. So even if we passed the length check | |
4382 | * above, it's still possible for the tag to wind | |
4383 | * up being slightly too long. | |
4384 | */ | |
4385 | return (zfs_error(hdl, EZFS_TAGTOOLONG, errbuf)); | |
45d1cae3 BB |
4386 | case ENOTSUP: |
4387 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4388 | "pool must be upgraded")); | |
4389 | return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); | |
4390 | case EINVAL: | |
4391 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
4392 | case EEXIST: | |
4393 | return (zfs_error(hdl, EZFS_REFTAG_HOLD, errbuf)); | |
428870ff BB |
4394 | case ENOENT: |
4395 | if (enoent_ok) | |
572e2857 | 4396 | return (ENOENT); |
428870ff | 4397 | /* FALLTHROUGH */ |
45d1cae3 BB |
4398 | default: |
4399 | return (zfs_standard_error_fmt(hdl, errno, errbuf)); | |
4400 | } | |
4401 | } | |
4402 | ||
4403 | return (0); | |
4404 | } | |
4405 | ||
4406 | int | |
4407 | zfs_release(zfs_handle_t *zhp, const char *snapname, const char *tag, | |
4408 | boolean_t recursive) | |
4409 | { | |
2598c001 | 4410 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
45d1cae3 BB |
4411 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
4412 | ||
4413 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
4414 | (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); | |
428870ff BB |
4415 | if (strlcpy(zc.zc_string, tag, sizeof (zc.zc_string)) |
4416 | >= sizeof (zc.zc_string)) | |
4417 | return (zfs_error(hdl, EZFS_TAGTOOLONG, tag)); | |
45d1cae3 BB |
4418 | zc.zc_cookie = recursive; |
4419 | ||
4420 | if (zfs_ioctl(hdl, ZFS_IOC_RELEASE, &zc) != 0) { | |
4421 | char errbuf[ZFS_MAXNAMELEN+32]; | |
4422 | ||
4423 | /* | |
4424 | * if it was recursive, the one that actually failed will be in | |
4425 | * zc.zc_name. | |
4426 | */ | |
4427 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
428870ff BB |
4428 | "cannot release '%s' from '%s@%s'"), tag, zc.zc_name, |
4429 | snapname); | |
45d1cae3 BB |
4430 | switch (errno) { |
4431 | case ESRCH: | |
4432 | return (zfs_error(hdl, EZFS_REFTAG_RELE, errbuf)); | |
4433 | case ENOTSUP: | |
4434 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4435 | "pool must be upgraded")); | |
4436 | return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); | |
4437 | case EINVAL: | |
4438 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
4439 | default: | |
4440 | return (zfs_standard_error_fmt(hdl, errno, errbuf)); | |
4441 | } | |
4442 | } | |
4443 | ||
4444 | return (0); | |
4445 | } | |
428870ff | 4446 | |
0b7936d5 AS |
4447 | int |
4448 | zfs_get_fsacl(zfs_handle_t *zhp, nvlist_t **nvl) | |
4449 | { | |
4450 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; | |
4451 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
4452 | int nvsz = 2048; | |
4453 | void *nvbuf; | |
4454 | int err = 0; | |
4455 | char errbuf[ZFS_MAXNAMELEN+32]; | |
4456 | ||
4457 | assert(zhp->zfs_type == ZFS_TYPE_VOLUME || | |
4458 | zhp->zfs_type == ZFS_TYPE_FILESYSTEM); | |
4459 | ||
4460 | tryagain: | |
4461 | ||
4462 | nvbuf = malloc(nvsz); | |
4463 | if (nvbuf == NULL) { | |
4464 | err = (zfs_error(hdl, EZFS_NOMEM, strerror(errno))); | |
4465 | goto out; | |
4466 | } | |
4467 | ||
4468 | zc.zc_nvlist_dst_size = nvsz; | |
4469 | zc.zc_nvlist_dst = (uintptr_t)nvbuf; | |
4470 | ||
4471 | (void) strlcpy(zc.zc_name, zhp->zfs_name, ZFS_MAXNAMELEN); | |
4472 | ||
c7f2d69d | 4473 | if (ioctl(hdl->libzfs_fd, ZFS_IOC_GET_FSACL, &zc) != 0) { |
0b7936d5 AS |
4474 | (void) snprintf(errbuf, sizeof (errbuf), |
4475 | dgettext(TEXT_DOMAIN, "cannot get permissions on '%s'"), | |
4476 | zc.zc_name); | |
4477 | switch (errno) { | |
4478 | case ENOMEM: | |
4479 | free(nvbuf); | |
4480 | nvsz = zc.zc_nvlist_dst_size; | |
4481 | goto tryagain; | |
4482 | ||
4483 | case ENOTSUP: | |
4484 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4485 | "pool must be upgraded")); | |
4486 | err = zfs_error(hdl, EZFS_BADVERSION, errbuf); | |
4487 | break; | |
4488 | case EINVAL: | |
4489 | err = zfs_error(hdl, EZFS_BADTYPE, errbuf); | |
4490 | break; | |
4491 | case ENOENT: | |
4492 | err = zfs_error(hdl, EZFS_NOENT, errbuf); | |
4493 | break; | |
4494 | default: | |
4495 | err = zfs_standard_error_fmt(hdl, errno, errbuf); | |
4496 | break; | |
4497 | } | |
4498 | } else { | |
4499 | /* success */ | |
4500 | int rc = nvlist_unpack(nvbuf, zc.zc_nvlist_dst_size, nvl, 0); | |
4501 | if (rc) { | |
4502 | (void) snprintf(errbuf, sizeof (errbuf), dgettext( | |
4503 | TEXT_DOMAIN, "cannot get permissions on '%s'"), | |
4504 | zc.zc_name); | |
4505 | err = zfs_standard_error_fmt(hdl, rc, errbuf); | |
4506 | } | |
4507 | } | |
4508 | ||
4509 | free(nvbuf); | |
4510 | out: | |
4511 | return (err); | |
4512 | } | |
4513 | ||
4514 | int | |
4515 | zfs_set_fsacl(zfs_handle_t *zhp, boolean_t un, nvlist_t *nvl) | |
4516 | { | |
4517 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; | |
4518 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
4519 | char *nvbuf; | |
4520 | char errbuf[ZFS_MAXNAMELEN+32]; | |
4521 | size_t nvsz; | |
4522 | int err; | |
4523 | ||
4524 | assert(zhp->zfs_type == ZFS_TYPE_VOLUME || | |
4525 | zhp->zfs_type == ZFS_TYPE_FILESYSTEM); | |
4526 | ||
4527 | err = nvlist_size(nvl, &nvsz, NV_ENCODE_NATIVE); | |
4528 | assert(err == 0); | |
4529 | ||
4530 | nvbuf = malloc(nvsz); | |
4531 | ||
4532 | err = nvlist_pack(nvl, &nvbuf, &nvsz, NV_ENCODE_NATIVE, 0); | |
4533 | assert(err == 0); | |
4534 | ||
4535 | zc.zc_nvlist_src_size = nvsz; | |
4536 | zc.zc_nvlist_src = (uintptr_t)nvbuf; | |
4537 | zc.zc_perm_action = un; | |
4538 | ||
4539 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
4540 | ||
4541 | if (zfs_ioctl(hdl, ZFS_IOC_SET_FSACL, &zc) != 0) { | |
4542 | (void) snprintf(errbuf, sizeof (errbuf), | |
4543 | dgettext(TEXT_DOMAIN, "cannot set permissions on '%s'"), | |
4544 | zc.zc_name); | |
4545 | switch (errno) { | |
4546 | case ENOTSUP: | |
4547 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4548 | "pool must be upgraded")); | |
4549 | err = zfs_error(hdl, EZFS_BADVERSION, errbuf); | |
4550 | break; | |
4551 | case EINVAL: | |
4552 | err = zfs_error(hdl, EZFS_BADTYPE, errbuf); | |
4553 | break; | |
4554 | case ENOENT: | |
4555 | err = zfs_error(hdl, EZFS_NOENT, errbuf); | |
4556 | break; | |
4557 | default: | |
4558 | err = zfs_standard_error_fmt(hdl, errno, errbuf); | |
4559 | break; | |
4560 | } | |
4561 | } | |
4562 | ||
4563 | free(nvbuf); | |
4564 | ||
4565 | return (err); | |
4566 | } | |
4567 | ||
4568 | int | |
4569 | zfs_get_holds(zfs_handle_t *zhp, nvlist_t **nvl) | |
4570 | { | |
4571 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; | |
4572 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
4573 | int nvsz = 2048; | |
4574 | void *nvbuf; | |
4575 | int err = 0; | |
4576 | char errbuf[ZFS_MAXNAMELEN+32]; | |
4577 | ||
4578 | assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); | |
4579 | ||
4580 | tryagain: | |
4581 | ||
4582 | nvbuf = malloc(nvsz); | |
4583 | if (nvbuf == NULL) { | |
4584 | err = (zfs_error(hdl, EZFS_NOMEM, strerror(errno))); | |
4585 | goto out; | |
4586 | } | |
4587 | ||
4588 | zc.zc_nvlist_dst_size = nvsz; | |
4589 | zc.zc_nvlist_dst = (uintptr_t)nvbuf; | |
4590 | ||
4591 | (void) strlcpy(zc.zc_name, zhp->zfs_name, ZFS_MAXNAMELEN); | |
4592 | ||
4593 | if (zfs_ioctl(hdl, ZFS_IOC_GET_HOLDS, &zc) != 0) { | |
4594 | (void) snprintf(errbuf, sizeof (errbuf), | |
4595 | dgettext(TEXT_DOMAIN, "cannot get holds for '%s'"), | |
4596 | zc.zc_name); | |
4597 | switch (errno) { | |
4598 | case ENOMEM: | |
4599 | free(nvbuf); | |
4600 | nvsz = zc.zc_nvlist_dst_size; | |
4601 | goto tryagain; | |
4602 | ||
4603 | case ENOTSUP: | |
4604 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4605 | "pool must be upgraded")); | |
4606 | err = zfs_error(hdl, EZFS_BADVERSION, errbuf); | |
4607 | break; | |
4608 | case EINVAL: | |
4609 | err = zfs_error(hdl, EZFS_BADTYPE, errbuf); | |
4610 | break; | |
4611 | case ENOENT: | |
4612 | err = zfs_error(hdl, EZFS_NOENT, errbuf); | |
4613 | break; | |
4614 | default: | |
4615 | err = zfs_standard_error_fmt(hdl, errno, errbuf); | |
4616 | break; | |
4617 | } | |
4618 | } else { | |
4619 | /* success */ | |
4620 | int rc = nvlist_unpack(nvbuf, zc.zc_nvlist_dst_size, nvl, 0); | |
4621 | if (rc) { | |
4622 | (void) snprintf(errbuf, sizeof (errbuf), | |
4623 | dgettext(TEXT_DOMAIN, "cannot get holds for '%s'"), | |
4624 | zc.zc_name); | |
4625 | err = zfs_standard_error_fmt(hdl, rc, errbuf); | |
4626 | } | |
4627 | } | |
4628 | ||
4629 | free(nvbuf); | |
4630 | out: | |
4631 | return (err); | |
4632 | } | |
4633 | ||
428870ff BB |
4634 | uint64_t |
4635 | zvol_volsize_to_reservation(uint64_t volsize, nvlist_t *props) | |
4636 | { | |
4637 | uint64_t numdb; | |
4638 | uint64_t nblocks, volblocksize; | |
4639 | int ncopies; | |
4640 | char *strval; | |
4641 | ||
4642 | if (nvlist_lookup_string(props, | |
4643 | zfs_prop_to_name(ZFS_PROP_COPIES), &strval) == 0) | |
4644 | ncopies = atoi(strval); | |
4645 | else | |
4646 | ncopies = 1; | |
4647 | if (nvlist_lookup_uint64(props, | |
4648 | zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
4649 | &volblocksize) != 0) | |
4650 | volblocksize = ZVOL_DEFAULT_BLOCKSIZE; | |
4651 | nblocks = volsize/volblocksize; | |
4652 | /* start with metadnode L0-L6 */ | |
4653 | numdb = 7; | |
4654 | /* calculate number of indirects */ | |
4655 | while (nblocks > 1) { | |
4656 | nblocks += DNODES_PER_LEVEL - 1; | |
4657 | nblocks /= DNODES_PER_LEVEL; | |
4658 | numdb += nblocks; | |
4659 | } | |
4660 | numdb *= MIN(SPA_DVAS_PER_BP, ncopies + 1); | |
4661 | volsize *= ncopies; | |
4662 | /* | |
4663 | * this is exactly DN_MAX_INDBLKSHIFT when metadata isn't | |
4664 | * compressed, but in practice they compress down to about | |
4665 | * 1100 bytes | |
4666 | */ | |
4667 | numdb *= 1ULL << DN_MAX_INDBLKSHIFT; | |
4668 | volsize += numdb; | |
4669 | return (volsize); | |
4670 | } |