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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. |
a08ee875 | 24 | * Copyright (c) 2013 by Delphix. All rights reserved. |
08b1b21d | 25 | * Copyright (c) 2012 DEY Storage Systems, Inc. All rights reserved. |
0cee2406 | 26 | * Copyright (c) 2012 Pawel Jakub Dawidek <pawel@dawidek.net>. |
a08ee875 LG |
27 | * Copyright (c) 2013 Martin Matuska. All rights reserved. |
28 | * Copyright (c) 2013 Steven Hartland. All rights reserved. | |
29 | * Copyright 2013 Nexenta Systems, Inc. All rights reserved. | |
34dc7c2f BB |
30 | */ |
31 | ||
34dc7c2f BB |
32 | #include <ctype.h> |
33 | #include <errno.h> | |
34dc7c2f BB |
34 | #include <libintl.h> |
35 | #include <math.h> | |
36 | #include <stdio.h> | |
37 | #include <stdlib.h> | |
38 | #include <strings.h> | |
39 | #include <unistd.h> | |
40 | #include <stddef.h> | |
41 | #include <zone.h> | |
42 | #include <fcntl.h> | |
43 | #include <sys/mntent.h> | |
34dc7c2f | 44 | #include <sys/mount.h> |
34dc7c2f BB |
45 | #include <priv.h> |
46 | #include <pwd.h> | |
47 | #include <grp.h> | |
48 | #include <stddef.h> | |
49 | #include <ucred.h> | |
be160928 | 50 | #ifdef HAVE_IDMAP |
9babb374 BB |
51 | #include <idmap.h> |
52 | #include <aclutils.h> | |
45d1cae3 | 53 | #include <directory.h> |
be160928 | 54 | #endif /* HAVE_IDMAP */ |
34dc7c2f | 55 | |
428870ff | 56 | #include <sys/dnode.h> |
34dc7c2f BB |
57 | #include <sys/spa.h> |
58 | #include <sys/zap.h> | |
59 | #include <libzfs.h> | |
60 | ||
61 | #include "zfs_namecheck.h" | |
62 | #include "zfs_prop.h" | |
63 | #include "libzfs_impl.h" | |
64 | #include "zfs_deleg.h" | |
65 | ||
9babb374 BB |
66 | static int userquota_propname_decode(const char *propname, boolean_t zoned, |
67 | zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp); | |
34dc7c2f BB |
68 | |
69 | /* | |
70 | * Given a single type (not a mask of types), return the type in a human | |
71 | * readable form. | |
72 | */ | |
73 | const char * | |
74 | zfs_type_to_name(zfs_type_t type) | |
75 | { | |
76 | switch (type) { | |
77 | case ZFS_TYPE_FILESYSTEM: | |
78 | return (dgettext(TEXT_DOMAIN, "filesystem")); | |
79 | case ZFS_TYPE_SNAPSHOT: | |
80 | return (dgettext(TEXT_DOMAIN, "snapshot")); | |
81 | case ZFS_TYPE_VOLUME: | |
82 | return (dgettext(TEXT_DOMAIN, "volume")); | |
e75c13c3 BB |
83 | default: |
84 | break; | |
34dc7c2f BB |
85 | } |
86 | ||
87 | return (NULL); | |
88 | } | |
89 | ||
34dc7c2f BB |
90 | /* |
91 | * Validate a ZFS path. This is used even before trying to open the dataset, to | |
9babb374 BB |
92 | * provide a more meaningful error message. We call zfs_error_aux() to |
93 | * explain exactly why the name was not valid. | |
34dc7c2f | 94 | */ |
572e2857 | 95 | int |
34dc7c2f BB |
96 | zfs_validate_name(libzfs_handle_t *hdl, const char *path, int type, |
97 | boolean_t modifying) | |
98 | { | |
99 | namecheck_err_t why; | |
100 | char what; | |
101 | ||
0b7936d5 | 102 | (void) zfs_prop_get_table(); |
34dc7c2f BB |
103 | if (dataset_namecheck(path, &why, &what) != 0) { |
104 | if (hdl != NULL) { | |
105 | switch (why) { | |
106 | case NAME_ERR_TOOLONG: | |
107 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
108 | "name is too long")); | |
109 | break; | |
110 | ||
111 | case NAME_ERR_LEADING_SLASH: | |
112 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
113 | "leading slash in name")); | |
114 | break; | |
115 | ||
116 | case NAME_ERR_EMPTY_COMPONENT: | |
117 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
118 | "empty component in name")); | |
119 | break; | |
120 | ||
121 | case NAME_ERR_TRAILING_SLASH: | |
122 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
123 | "trailing slash in name")); | |
124 | break; | |
125 | ||
126 | case NAME_ERR_INVALCHAR: | |
127 | zfs_error_aux(hdl, | |
128 | dgettext(TEXT_DOMAIN, "invalid character " | |
129 | "'%c' in name"), what); | |
130 | break; | |
131 | ||
132 | case NAME_ERR_MULTIPLE_AT: | |
133 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
134 | "multiple '@' delimiters in name")); | |
135 | break; | |
136 | ||
137 | case NAME_ERR_NOLETTER: | |
138 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
139 | "pool doesn't begin with a letter")); | |
140 | break; | |
141 | ||
142 | case NAME_ERR_RESERVED: | |
143 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
144 | "name is reserved")); | |
145 | break; | |
146 | ||
147 | case NAME_ERR_DISKLIKE: | |
148 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
149 | "reserved disk name")); | |
150 | break; | |
e75c13c3 BB |
151 | default: |
152 | break; | |
34dc7c2f BB |
153 | } |
154 | } | |
155 | ||
156 | return (0); | |
157 | } | |
158 | ||
159 | if (!(type & ZFS_TYPE_SNAPSHOT) && strchr(path, '@') != NULL) { | |
160 | if (hdl != NULL) | |
161 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
162 | "snapshot delimiter '@' in filesystem name")); | |
163 | return (0); | |
164 | } | |
165 | ||
166 | if (type == ZFS_TYPE_SNAPSHOT && strchr(path, '@') == NULL) { | |
167 | if (hdl != NULL) | |
168 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
169 | "missing '@' delimiter in snapshot name")); | |
170 | return (0); | |
171 | } | |
172 | ||
173 | if (modifying && strchr(path, '%') != NULL) { | |
174 | if (hdl != NULL) | |
175 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
176 | "invalid character %c in name"), '%'); | |
177 | return (0); | |
178 | } | |
179 | ||
180 | return (-1); | |
181 | } | |
182 | ||
183 | int | |
184 | zfs_name_valid(const char *name, zfs_type_t type) | |
185 | { | |
186 | if (type == ZFS_TYPE_POOL) | |
187 | return (zpool_name_valid(NULL, B_FALSE, name)); | |
188 | return (zfs_validate_name(NULL, name, type, B_FALSE)); | |
189 | } | |
190 | ||
191 | /* | |
192 | * This function takes the raw DSL properties, and filters out the user-defined | |
193 | * properties into a separate nvlist. | |
194 | */ | |
195 | static nvlist_t * | |
196 | process_user_props(zfs_handle_t *zhp, nvlist_t *props) | |
197 | { | |
198 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
199 | nvpair_t *elem; | |
200 | nvlist_t *propval; | |
201 | nvlist_t *nvl; | |
202 | ||
203 | if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) { | |
204 | (void) no_memory(hdl); | |
205 | return (NULL); | |
206 | } | |
207 | ||
208 | elem = NULL; | |
209 | while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { | |
210 | if (!zfs_prop_user(nvpair_name(elem))) | |
211 | continue; | |
212 | ||
213 | verify(nvpair_value_nvlist(elem, &propval) == 0); | |
214 | if (nvlist_add_nvlist(nvl, nvpair_name(elem), propval) != 0) { | |
215 | nvlist_free(nvl); | |
216 | (void) no_memory(hdl); | |
217 | return (NULL); | |
218 | } | |
219 | } | |
220 | ||
221 | return (nvl); | |
222 | } | |
223 | ||
b128c09f BB |
224 | static zpool_handle_t * |
225 | zpool_add_handle(zfs_handle_t *zhp, const char *pool_name) | |
226 | { | |
227 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
228 | zpool_handle_t *zph; | |
229 | ||
230 | if ((zph = zpool_open_canfail(hdl, pool_name)) != NULL) { | |
231 | if (hdl->libzfs_pool_handles != NULL) | |
232 | zph->zpool_next = hdl->libzfs_pool_handles; | |
233 | hdl->libzfs_pool_handles = zph; | |
234 | } | |
235 | return (zph); | |
236 | } | |
237 | ||
238 | static zpool_handle_t * | |
239 | zpool_find_handle(zfs_handle_t *zhp, const char *pool_name, int len) | |
240 | { | |
241 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
242 | zpool_handle_t *zph = hdl->libzfs_pool_handles; | |
243 | ||
244 | while ((zph != NULL) && | |
245 | (strncmp(pool_name, zpool_get_name(zph), len) != 0)) | |
246 | zph = zph->zpool_next; | |
247 | return (zph); | |
248 | } | |
249 | ||
250 | /* | |
251 | * Returns a handle to the pool that contains the provided dataset. | |
252 | * If a handle to that pool already exists then that handle is returned. | |
253 | * Otherwise, a new handle is created and added to the list of handles. | |
254 | */ | |
255 | static zpool_handle_t * | |
256 | zpool_handle(zfs_handle_t *zhp) | |
257 | { | |
258 | char *pool_name; | |
259 | int len; | |
260 | zpool_handle_t *zph; | |
261 | ||
262 | len = strcspn(zhp->zfs_name, "/@") + 1; | |
263 | pool_name = zfs_alloc(zhp->zfs_hdl, len); | |
264 | (void) strlcpy(pool_name, zhp->zfs_name, len); | |
265 | ||
266 | zph = zpool_find_handle(zhp, pool_name, len); | |
267 | if (zph == NULL) | |
268 | zph = zpool_add_handle(zhp, pool_name); | |
269 | ||
270 | free(pool_name); | |
271 | return (zph); | |
272 | } | |
273 | ||
274 | void | |
275 | zpool_free_handles(libzfs_handle_t *hdl) | |
276 | { | |
277 | zpool_handle_t *next, *zph = hdl->libzfs_pool_handles; | |
278 | ||
279 | while (zph != NULL) { | |
280 | next = zph->zpool_next; | |
281 | zpool_close(zph); | |
282 | zph = next; | |
283 | } | |
284 | hdl->libzfs_pool_handles = NULL; | |
285 | } | |
286 | ||
34dc7c2f BB |
287 | /* |
288 | * Utility function to gather stats (objset and zpl) for the given object. | |
289 | */ | |
290 | static int | |
fb5f0bc8 | 291 | get_stats_ioctl(zfs_handle_t *zhp, zfs_cmd_t *zc) |
34dc7c2f | 292 | { |
34dc7c2f | 293 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
34dc7c2f | 294 | |
fb5f0bc8 | 295 | (void) strlcpy(zc->zc_name, zhp->zfs_name, sizeof (zc->zc_name)); |
34dc7c2f | 296 | |
fb5f0bc8 | 297 | while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, zc) != 0) { |
34dc7c2f | 298 | if (errno == ENOMEM) { |
fb5f0bc8 | 299 | if (zcmd_expand_dst_nvlist(hdl, zc) != 0) { |
34dc7c2f BB |
300 | return (-1); |
301 | } | |
302 | } else { | |
34dc7c2f BB |
303 | return (-1); |
304 | } | |
305 | } | |
fb5f0bc8 BB |
306 | return (0); |
307 | } | |
34dc7c2f | 308 | |
428870ff BB |
309 | /* |
310 | * Utility function to get the received properties of the given object. | |
311 | */ | |
312 | static int | |
313 | get_recvd_props_ioctl(zfs_handle_t *zhp) | |
314 | { | |
315 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
316 | nvlist_t *recvdprops; | |
a08ee875 | 317 | zfs_cmd_t zc = {"\0"}; |
428870ff BB |
318 | int err; |
319 | ||
320 | if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) | |
321 | return (-1); | |
322 | ||
323 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
324 | ||
325 | while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_RECVD_PROPS, &zc) != 0) { | |
326 | if (errno == ENOMEM) { | |
327 | if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) { | |
328 | return (-1); | |
329 | } | |
330 | } else { | |
331 | zcmd_free_nvlists(&zc); | |
332 | return (-1); | |
333 | } | |
334 | } | |
335 | ||
336 | err = zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &recvdprops); | |
337 | zcmd_free_nvlists(&zc); | |
338 | if (err != 0) | |
339 | return (-1); | |
340 | ||
341 | nvlist_free(zhp->zfs_recvd_props); | |
342 | zhp->zfs_recvd_props = recvdprops; | |
343 | ||
344 | return (0); | |
345 | } | |
346 | ||
fb5f0bc8 BB |
347 | static int |
348 | put_stats_zhdl(zfs_handle_t *zhp, zfs_cmd_t *zc) | |
349 | { | |
350 | nvlist_t *allprops, *userprops; | |
34dc7c2f | 351 | |
fb5f0bc8 BB |
352 | zhp->zfs_dmustats = zc->zc_objset_stats; /* structure assignment */ |
353 | ||
354 | if (zcmd_read_dst_nvlist(zhp->zfs_hdl, zc, &allprops) != 0) { | |
34dc7c2f BB |
355 | return (-1); |
356 | } | |
357 | ||
9babb374 BB |
358 | /* |
359 | * XXX Why do we store the user props separately, in addition to | |
360 | * storing them in zfs_props? | |
361 | */ | |
34dc7c2f BB |
362 | if ((userprops = process_user_props(zhp, allprops)) == NULL) { |
363 | nvlist_free(allprops); | |
364 | return (-1); | |
365 | } | |
366 | ||
367 | nvlist_free(zhp->zfs_props); | |
368 | nvlist_free(zhp->zfs_user_props); | |
369 | ||
370 | zhp->zfs_props = allprops; | |
371 | zhp->zfs_user_props = userprops; | |
372 | ||
373 | return (0); | |
374 | } | |
375 | ||
fb5f0bc8 BB |
376 | static int |
377 | get_stats(zfs_handle_t *zhp) | |
378 | { | |
379 | int rc = 0; | |
a08ee875 | 380 | zfs_cmd_t zc = {"\0"}; |
fb5f0bc8 BB |
381 | |
382 | if (zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) | |
383 | return (-1); | |
384 | if (get_stats_ioctl(zhp, &zc) != 0) | |
385 | rc = -1; | |
386 | else if (put_stats_zhdl(zhp, &zc) != 0) | |
387 | rc = -1; | |
388 | zcmd_free_nvlists(&zc); | |
389 | return (rc); | |
390 | } | |
391 | ||
34dc7c2f BB |
392 | /* |
393 | * Refresh the properties currently stored in the handle. | |
394 | */ | |
395 | void | |
396 | zfs_refresh_properties(zfs_handle_t *zhp) | |
397 | { | |
398 | (void) get_stats(zhp); | |
399 | } | |
400 | ||
401 | /* | |
402 | * Makes a handle from the given dataset name. Used by zfs_open() and | |
403 | * zfs_iter_* to create child handles on the fly. | |
404 | */ | |
fb5f0bc8 BB |
405 | static int |
406 | make_dataset_handle_common(zfs_handle_t *zhp, zfs_cmd_t *zc) | |
34dc7c2f | 407 | { |
428870ff | 408 | if (put_stats_zhdl(zhp, zc) != 0) |
fb5f0bc8 | 409 | return (-1); |
34dc7c2f BB |
410 | |
411 | /* | |
412 | * We've managed to open the dataset and gather statistics. Determine | |
413 | * the high-level type. | |
414 | */ | |
415 | if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) | |
416 | zhp->zfs_head_type = ZFS_TYPE_VOLUME; | |
417 | else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) | |
418 | zhp->zfs_head_type = ZFS_TYPE_FILESYSTEM; | |
ff998d80 | 419 | else if (zhp->zfs_dmustats.dds_type == DMU_OST_OTHER) |
a08ee875 | 420 | return (-1); |
34dc7c2f BB |
421 | else |
422 | abort(); | |
423 | ||
424 | if (zhp->zfs_dmustats.dds_is_snapshot) | |
425 | zhp->zfs_type = ZFS_TYPE_SNAPSHOT; | |
426 | else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) | |
427 | zhp->zfs_type = ZFS_TYPE_VOLUME; | |
428 | else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) | |
429 | zhp->zfs_type = ZFS_TYPE_FILESYSTEM; | |
430 | else | |
431 | abort(); /* we should never see any other types */ | |
432 | ||
428870ff BB |
433 | if ((zhp->zpool_hdl = zpool_handle(zhp)) == NULL) |
434 | return (-1); | |
435 | ||
fb5f0bc8 BB |
436 | return (0); |
437 | } | |
438 | ||
439 | zfs_handle_t * | |
440 | make_dataset_handle(libzfs_handle_t *hdl, const char *path) | |
441 | { | |
a08ee875 | 442 | zfs_cmd_t zc = {"\0"}; |
fb5f0bc8 BB |
443 | |
444 | zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); | |
445 | ||
446 | if (zhp == NULL) | |
447 | return (NULL); | |
448 | ||
449 | zhp->zfs_hdl = hdl; | |
450 | (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); | |
451 | if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) { | |
452 | free(zhp); | |
453 | return (NULL); | |
454 | } | |
455 | if (get_stats_ioctl(zhp, &zc) == -1) { | |
456 | zcmd_free_nvlists(&zc); | |
457 | free(zhp); | |
458 | return (NULL); | |
459 | } | |
460 | if (make_dataset_handle_common(zhp, &zc) == -1) { | |
461 | free(zhp); | |
462 | zhp = NULL; | |
463 | } | |
464 | zcmd_free_nvlists(&zc); | |
465 | return (zhp); | |
466 | } | |
467 | ||
330d06f9 | 468 | zfs_handle_t * |
fb5f0bc8 BB |
469 | make_dataset_handle_zc(libzfs_handle_t *hdl, zfs_cmd_t *zc) |
470 | { | |
471 | zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); | |
472 | ||
473 | if (zhp == NULL) | |
474 | return (NULL); | |
475 | ||
476 | zhp->zfs_hdl = hdl; | |
477 | (void) strlcpy(zhp->zfs_name, zc->zc_name, sizeof (zhp->zfs_name)); | |
478 | if (make_dataset_handle_common(zhp, zc) == -1) { | |
479 | free(zhp); | |
480 | return (NULL); | |
481 | } | |
34dc7c2f BB |
482 | return (zhp); |
483 | } | |
484 | ||
330d06f9 | 485 | zfs_handle_t * |
0cee2406 PJD |
486 | make_dataset_simple_handle_zc(zfs_handle_t *pzhp, zfs_cmd_t *zc) |
487 | { | |
488 | zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); | |
489 | ||
490 | if (zhp == NULL) | |
491 | return (NULL); | |
492 | ||
493 | zhp->zfs_hdl = pzhp->zfs_hdl; | |
494 | (void) strlcpy(zhp->zfs_name, zc->zc_name, sizeof (zhp->zfs_name)); | |
495 | zhp->zfs_head_type = pzhp->zfs_type; | |
496 | zhp->zfs_type = ZFS_TYPE_SNAPSHOT; | |
497 | zhp->zpool_hdl = zpool_handle(zhp); | |
498 | ||
499 | return (zhp); | |
500 | } | |
501 | ||
330d06f9 MA |
502 | zfs_handle_t * |
503 | zfs_handle_dup(zfs_handle_t *zhp_orig) | |
504 | { | |
505 | zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); | |
506 | ||
507 | if (zhp == NULL) | |
508 | return (NULL); | |
509 | ||
510 | zhp->zfs_hdl = zhp_orig->zfs_hdl; | |
511 | zhp->zpool_hdl = zhp_orig->zpool_hdl; | |
512 | (void) strlcpy(zhp->zfs_name, zhp_orig->zfs_name, | |
513 | sizeof (zhp->zfs_name)); | |
514 | zhp->zfs_type = zhp_orig->zfs_type; | |
515 | zhp->zfs_head_type = zhp_orig->zfs_head_type; | |
516 | zhp->zfs_dmustats = zhp_orig->zfs_dmustats; | |
517 | if (zhp_orig->zfs_props != NULL) { | |
518 | if (nvlist_dup(zhp_orig->zfs_props, &zhp->zfs_props, 0) != 0) { | |
519 | (void) no_memory(zhp->zfs_hdl); | |
520 | zfs_close(zhp); | |
521 | return (NULL); | |
522 | } | |
523 | } | |
524 | if (zhp_orig->zfs_user_props != NULL) { | |
525 | if (nvlist_dup(zhp_orig->zfs_user_props, | |
526 | &zhp->zfs_user_props, 0) != 0) { | |
527 | (void) no_memory(zhp->zfs_hdl); | |
528 | zfs_close(zhp); | |
529 | return (NULL); | |
530 | } | |
531 | } | |
532 | if (zhp_orig->zfs_recvd_props != NULL) { | |
533 | if (nvlist_dup(zhp_orig->zfs_recvd_props, | |
534 | &zhp->zfs_recvd_props, 0)) { | |
535 | (void) no_memory(zhp->zfs_hdl); | |
536 | zfs_close(zhp); | |
537 | return (NULL); | |
538 | } | |
539 | } | |
540 | zhp->zfs_mntcheck = zhp_orig->zfs_mntcheck; | |
541 | if (zhp_orig->zfs_mntopts != NULL) { | |
542 | zhp->zfs_mntopts = zfs_strdup(zhp_orig->zfs_hdl, | |
543 | zhp_orig->zfs_mntopts); | |
544 | } | |
545 | zhp->zfs_props_table = zhp_orig->zfs_props_table; | |
546 | return (zhp); | |
547 | } | |
548 | ||
34dc7c2f BB |
549 | /* |
550 | * Opens the given snapshot, filesystem, or volume. The 'types' | |
551 | * argument is a mask of acceptable types. The function will print an | |
552 | * appropriate error message and return NULL if it can't be opened. | |
553 | */ | |
554 | zfs_handle_t * | |
555 | zfs_open(libzfs_handle_t *hdl, const char *path, int types) | |
556 | { | |
557 | zfs_handle_t *zhp; | |
558 | char errbuf[1024]; | |
559 | ||
560 | (void) snprintf(errbuf, sizeof (errbuf), | |
561 | dgettext(TEXT_DOMAIN, "cannot open '%s'"), path); | |
562 | ||
563 | /* | |
564 | * Validate the name before we even try to open it. | |
565 | */ | |
566 | if (!zfs_validate_name(hdl, path, ZFS_TYPE_DATASET, B_FALSE)) { | |
567 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
568 | "invalid dataset name")); | |
569 | (void) zfs_error(hdl, EZFS_INVALIDNAME, errbuf); | |
570 | return (NULL); | |
571 | } | |
572 | ||
573 | /* | |
574 | * Try to get stats for the dataset, which will tell us if it exists. | |
575 | */ | |
576 | errno = 0; | |
577 | if ((zhp = make_dataset_handle(hdl, path)) == NULL) { | |
578 | (void) zfs_standard_error(hdl, errno, errbuf); | |
579 | return (NULL); | |
580 | } | |
581 | ||
582 | if (!(types & zhp->zfs_type)) { | |
583 | (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); | |
584 | zfs_close(zhp); | |
585 | return (NULL); | |
586 | } | |
587 | ||
588 | return (zhp); | |
589 | } | |
590 | ||
591 | /* | |
592 | * Release a ZFS handle. Nothing to do but free the associated memory. | |
593 | */ | |
594 | void | |
595 | zfs_close(zfs_handle_t *zhp) | |
596 | { | |
597 | if (zhp->zfs_mntopts) | |
598 | free(zhp->zfs_mntopts); | |
599 | nvlist_free(zhp->zfs_props); | |
600 | nvlist_free(zhp->zfs_user_props); | |
428870ff | 601 | nvlist_free(zhp->zfs_recvd_props); |
34dc7c2f BB |
602 | free(zhp); |
603 | } | |
604 | ||
fb5f0bc8 BB |
605 | typedef struct mnttab_node { |
606 | struct mnttab mtn_mt; | |
607 | avl_node_t mtn_node; | |
608 | } mnttab_node_t; | |
609 | ||
610 | static int | |
611 | libzfs_mnttab_cache_compare(const void *arg1, const void *arg2) | |
612 | { | |
613 | const mnttab_node_t *mtn1 = arg1; | |
614 | const mnttab_node_t *mtn2 = arg2; | |
615 | int rv; | |
616 | ||
617 | rv = strcmp(mtn1->mtn_mt.mnt_special, mtn2->mtn_mt.mnt_special); | |
618 | ||
619 | if (rv == 0) | |
620 | return (0); | |
621 | return (rv > 0 ? 1 : -1); | |
622 | } | |
623 | ||
624 | void | |
625 | libzfs_mnttab_init(libzfs_handle_t *hdl) | |
626 | { | |
fb5f0bc8 BB |
627 | assert(avl_numnodes(&hdl->libzfs_mnttab_cache) == 0); |
628 | avl_create(&hdl->libzfs_mnttab_cache, libzfs_mnttab_cache_compare, | |
629 | sizeof (mnttab_node_t), offsetof(mnttab_node_t, mtn_node)); | |
9babb374 BB |
630 | } |
631 | ||
c06d4368 | 632 | int |
9babb374 BB |
633 | libzfs_mnttab_update(libzfs_handle_t *hdl) |
634 | { | |
635 | struct mnttab entry; | |
fb5f0bc8 | 636 | |
c06d4368 AX |
637 | /* Reopen MNTTAB to prevent reading stale data from open file */ |
638 | if (freopen(MNTTAB, "r", hdl->libzfs_mnttab) == NULL) | |
639 | return (ENOENT); | |
640 | ||
fb5f0bc8 BB |
641 | while (getmntent(hdl->libzfs_mnttab, &entry) == 0) { |
642 | mnttab_node_t *mtn; | |
a08ee875 | 643 | avl_index_t where; |
fb5f0bc8 BB |
644 | |
645 | if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) | |
646 | continue; | |
a08ee875 | 647 | |
fb5f0bc8 BB |
648 | mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); |
649 | mtn->mtn_mt.mnt_special = zfs_strdup(hdl, entry.mnt_special); | |
650 | mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, entry.mnt_mountp); | |
651 | mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, entry.mnt_fstype); | |
652 | mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, entry.mnt_mntopts); | |
a08ee875 LG |
653 | |
654 | /* Exclude duplicate mounts */ | |
655 | if (avl_find(&hdl->libzfs_mnttab_cache, mtn, &where) != NULL) { | |
656 | free(mtn->mtn_mt.mnt_special); | |
657 | free(mtn->mtn_mt.mnt_mountp); | |
658 | free(mtn->mtn_mt.mnt_fstype); | |
659 | free(mtn->mtn_mt.mnt_mntopts); | |
660 | free(mtn); | |
661 | continue; | |
662 | } | |
663 | ||
fb5f0bc8 BB |
664 | avl_add(&hdl->libzfs_mnttab_cache, mtn); |
665 | } | |
c06d4368 AX |
666 | |
667 | return (0); | |
fb5f0bc8 BB |
668 | } |
669 | ||
670 | void | |
671 | libzfs_mnttab_fini(libzfs_handle_t *hdl) | |
672 | { | |
673 | void *cookie = NULL; | |
674 | mnttab_node_t *mtn; | |
675 | ||
c65aa5b2 | 676 | while ((mtn = avl_destroy_nodes(&hdl->libzfs_mnttab_cache, &cookie))) { |
fb5f0bc8 BB |
677 | free(mtn->mtn_mt.mnt_special); |
678 | free(mtn->mtn_mt.mnt_mountp); | |
679 | free(mtn->mtn_mt.mnt_fstype); | |
680 | free(mtn->mtn_mt.mnt_mntopts); | |
681 | free(mtn); | |
682 | } | |
683 | avl_destroy(&hdl->libzfs_mnttab_cache); | |
684 | } | |
685 | ||
9babb374 BB |
686 | void |
687 | libzfs_mnttab_cache(libzfs_handle_t *hdl, boolean_t enable) | |
688 | { | |
689 | hdl->libzfs_mnttab_enable = enable; | |
690 | } | |
691 | ||
fb5f0bc8 BB |
692 | int |
693 | libzfs_mnttab_find(libzfs_handle_t *hdl, const char *fsname, | |
694 | struct mnttab *entry) | |
695 | { | |
696 | mnttab_node_t find; | |
697 | mnttab_node_t *mtn; | |
c06d4368 | 698 | int error; |
fb5f0bc8 | 699 | |
9babb374 BB |
700 | if (!hdl->libzfs_mnttab_enable) { |
701 | struct mnttab srch = { 0 }; | |
702 | ||
703 | if (avl_numnodes(&hdl->libzfs_mnttab_cache)) | |
704 | libzfs_mnttab_fini(hdl); | |
c06d4368 AX |
705 | |
706 | /* Reopen MNTTAB to prevent reading stale data from open file */ | |
707 | if (freopen(MNTTAB, "r", hdl->libzfs_mnttab) == NULL) | |
708 | return (ENOENT); | |
709 | ||
9babb374 BB |
710 | srch.mnt_special = (char *)fsname; |
711 | srch.mnt_fstype = MNTTYPE_ZFS; | |
712 | if (getmntany(hdl->libzfs_mnttab, entry, &srch) == 0) | |
713 | return (0); | |
714 | else | |
715 | return (ENOENT); | |
716 | } | |
717 | ||
fb5f0bc8 | 718 | if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) |
c06d4368 AX |
719 | if ((error = libzfs_mnttab_update(hdl)) != 0) |
720 | return (error); | |
fb5f0bc8 BB |
721 | |
722 | find.mtn_mt.mnt_special = (char *)fsname; | |
723 | mtn = avl_find(&hdl->libzfs_mnttab_cache, &find, NULL); | |
724 | if (mtn) { | |
725 | *entry = mtn->mtn_mt; | |
726 | return (0); | |
727 | } | |
728 | return (ENOENT); | |
729 | } | |
730 | ||
731 | void | |
732 | libzfs_mnttab_add(libzfs_handle_t *hdl, const char *special, | |
733 | const char *mountp, const char *mntopts) | |
734 | { | |
735 | mnttab_node_t *mtn; | |
736 | ||
737 | if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) | |
738 | return; | |
739 | mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); | |
740 | mtn->mtn_mt.mnt_special = zfs_strdup(hdl, special); | |
741 | mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, mountp); | |
742 | mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, MNTTYPE_ZFS); | |
743 | mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, mntopts); | |
744 | avl_add(&hdl->libzfs_mnttab_cache, mtn); | |
745 | } | |
746 | ||
747 | void | |
748 | libzfs_mnttab_remove(libzfs_handle_t *hdl, const char *fsname) | |
749 | { | |
750 | mnttab_node_t find; | |
751 | mnttab_node_t *ret; | |
752 | ||
753 | find.mtn_mt.mnt_special = (char *)fsname; | |
c65aa5b2 | 754 | if ((ret = avl_find(&hdl->libzfs_mnttab_cache, (void *)&find, NULL))) { |
fb5f0bc8 BB |
755 | avl_remove(&hdl->libzfs_mnttab_cache, ret); |
756 | free(ret->mtn_mt.mnt_special); | |
757 | free(ret->mtn_mt.mnt_mountp); | |
758 | free(ret->mtn_mt.mnt_fstype); | |
759 | free(ret->mtn_mt.mnt_mntopts); | |
760 | free(ret); | |
761 | } | |
762 | } | |
763 | ||
34dc7c2f BB |
764 | int |
765 | zfs_spa_version(zfs_handle_t *zhp, int *spa_version) | |
766 | { | |
b128c09f | 767 | zpool_handle_t *zpool_handle = zhp->zpool_hdl; |
34dc7c2f | 768 | |
34dc7c2f BB |
769 | if (zpool_handle == NULL) |
770 | return (-1); | |
771 | ||
772 | *spa_version = zpool_get_prop_int(zpool_handle, | |
773 | ZPOOL_PROP_VERSION, NULL); | |
34dc7c2f BB |
774 | return (0); |
775 | } | |
776 | ||
777 | /* | |
778 | * The choice of reservation property depends on the SPA version. | |
779 | */ | |
780 | static int | |
781 | zfs_which_resv_prop(zfs_handle_t *zhp, zfs_prop_t *resv_prop) | |
782 | { | |
783 | int spa_version; | |
784 | ||
785 | if (zfs_spa_version(zhp, &spa_version) < 0) | |
786 | return (-1); | |
787 | ||
788 | if (spa_version >= SPA_VERSION_REFRESERVATION) | |
789 | *resv_prop = ZFS_PROP_REFRESERVATION; | |
790 | else | |
791 | *resv_prop = ZFS_PROP_RESERVATION; | |
792 | ||
793 | return (0); | |
794 | } | |
795 | ||
796 | /* | |
797 | * Given an nvlist of properties to set, validates that they are correct, and | |
798 | * parses any numeric properties (index, boolean, etc) if they are specified as | |
799 | * strings. | |
800 | */ | |
b128c09f BB |
801 | nvlist_t * |
802 | zfs_valid_proplist(libzfs_handle_t *hdl, zfs_type_t type, nvlist_t *nvl, | |
34dc7c2f BB |
803 | uint64_t zoned, zfs_handle_t *zhp, const char *errbuf) |
804 | { | |
805 | nvpair_t *elem; | |
806 | uint64_t intval; | |
807 | char *strval; | |
808 | zfs_prop_t prop; | |
809 | nvlist_t *ret; | |
810 | int chosen_normal = -1; | |
811 | int chosen_utf = -1; | |
812 | ||
34dc7c2f BB |
813 | if (nvlist_alloc(&ret, NV_UNIQUE_NAME, 0) != 0) { |
814 | (void) no_memory(hdl); | |
815 | return (NULL); | |
816 | } | |
817 | ||
9babb374 BB |
818 | /* |
819 | * Make sure this property is valid and applies to this type. | |
820 | */ | |
821 | ||
34dc7c2f BB |
822 | elem = NULL; |
823 | while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) { | |
824 | const char *propname = nvpair_name(elem); | |
825 | ||
9babb374 BB |
826 | prop = zfs_name_to_prop(propname); |
827 | if (prop == ZPROP_INVAL && zfs_prop_user(propname)) { | |
34dc7c2f | 828 | /* |
9babb374 | 829 | * This is a user property: make sure it's a |
34dc7c2f BB |
830 | * string, and that it's less than ZAP_MAXNAMELEN. |
831 | */ | |
832 | if (nvpair_type(elem) != DATA_TYPE_STRING) { | |
833 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
834 | "'%s' must be a string"), propname); | |
835 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
836 | goto error; | |
837 | } | |
838 | ||
839 | if (strlen(nvpair_name(elem)) >= ZAP_MAXNAMELEN) { | |
840 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
841 | "property name '%s' is too long"), | |
842 | propname); | |
843 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
844 | goto error; | |
845 | } | |
846 | ||
847 | (void) nvpair_value_string(elem, &strval); | |
848 | if (nvlist_add_string(ret, propname, strval) != 0) { | |
849 | (void) no_memory(hdl); | |
850 | goto error; | |
851 | } | |
852 | continue; | |
853 | } | |
854 | ||
9babb374 BB |
855 | /* |
856 | * Currently, only user properties can be modified on | |
857 | * snapshots. | |
858 | */ | |
b128c09f BB |
859 | if (type == ZFS_TYPE_SNAPSHOT) { |
860 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
861 | "this property can not be modified for snapshots")); | |
862 | (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); | |
863 | goto error; | |
864 | } | |
865 | ||
9babb374 BB |
866 | if (prop == ZPROP_INVAL && zfs_prop_userquota(propname)) { |
867 | zfs_userquota_prop_t uqtype; | |
868 | char newpropname[128]; | |
869 | char domain[128]; | |
870 | uint64_t rid; | |
871 | uint64_t valary[3]; | |
872 | ||
873 | if (userquota_propname_decode(propname, zoned, | |
874 | &uqtype, domain, sizeof (domain), &rid) != 0) { | |
875 | zfs_error_aux(hdl, | |
876 | dgettext(TEXT_DOMAIN, | |
877 | "'%s' has an invalid user/group name"), | |
878 | propname); | |
879 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
880 | goto error; | |
881 | } | |
882 | ||
883 | if (uqtype != ZFS_PROP_USERQUOTA && | |
884 | uqtype != ZFS_PROP_GROUPQUOTA) { | |
885 | zfs_error_aux(hdl, | |
886 | dgettext(TEXT_DOMAIN, "'%s' is readonly"), | |
887 | propname); | |
888 | (void) zfs_error(hdl, EZFS_PROPREADONLY, | |
889 | errbuf); | |
890 | goto error; | |
891 | } | |
892 | ||
893 | if (nvpair_type(elem) == DATA_TYPE_STRING) { | |
894 | (void) nvpair_value_string(elem, &strval); | |
895 | if (strcmp(strval, "none") == 0) { | |
896 | intval = 0; | |
897 | } else if (zfs_nicestrtonum(hdl, | |
898 | strval, &intval) != 0) { | |
899 | (void) zfs_error(hdl, | |
900 | EZFS_BADPROP, errbuf); | |
901 | goto error; | |
902 | } | |
903 | } else if (nvpair_type(elem) == | |
904 | DATA_TYPE_UINT64) { | |
905 | (void) nvpair_value_uint64(elem, &intval); | |
906 | if (intval == 0) { | |
907 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
908 | "use 'none' to disable " | |
909 | "userquota/groupquota")); | |
910 | goto error; | |
911 | } | |
912 | } else { | |
913 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
914 | "'%s' must be a number"), propname); | |
915 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
916 | goto error; | |
917 | } | |
918 | ||
428870ff BB |
919 | /* |
920 | * Encode the prop name as | |
921 | * userquota@<hex-rid>-domain, to make it easy | |
922 | * for the kernel to decode. | |
923 | */ | |
9babb374 | 924 | (void) snprintf(newpropname, sizeof (newpropname), |
428870ff BB |
925 | "%s%llx-%s", zfs_userquota_prop_prefixes[uqtype], |
926 | (longlong_t)rid, domain); | |
9babb374 BB |
927 | valary[0] = uqtype; |
928 | valary[1] = rid; | |
929 | valary[2] = intval; | |
930 | if (nvlist_add_uint64_array(ret, newpropname, | |
931 | valary, 3) != 0) { | |
932 | (void) no_memory(hdl); | |
933 | goto error; | |
934 | } | |
935 | continue; | |
330d06f9 MA |
936 | } else if (prop == ZPROP_INVAL && zfs_prop_written(propname)) { |
937 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
938 | "'%s' is readonly"), | |
939 | propname); | |
940 | (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); | |
941 | goto error; | |
9babb374 BB |
942 | } |
943 | ||
944 | if (prop == ZPROP_INVAL) { | |
945 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
946 | "invalid property '%s'"), propname); | |
947 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
948 | goto error; | |
949 | } | |
950 | ||
34dc7c2f BB |
951 | if (!zfs_prop_valid_for_type(prop, type)) { |
952 | zfs_error_aux(hdl, | |
953 | dgettext(TEXT_DOMAIN, "'%s' does not " | |
954 | "apply to datasets of this type"), propname); | |
955 | (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); | |
956 | goto error; | |
957 | } | |
958 | ||
959 | if (zfs_prop_readonly(prop) && | |
960 | (!zfs_prop_setonce(prop) || zhp != NULL)) { | |
961 | zfs_error_aux(hdl, | |
962 | dgettext(TEXT_DOMAIN, "'%s' is readonly"), | |
963 | propname); | |
964 | (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); | |
965 | goto error; | |
966 | } | |
967 | ||
968 | if (zprop_parse_value(hdl, elem, prop, type, ret, | |
969 | &strval, &intval, errbuf) != 0) | |
970 | goto error; | |
971 | ||
972 | /* | |
973 | * Perform some additional checks for specific properties. | |
974 | */ | |
975 | switch (prop) { | |
976 | case ZFS_PROP_VERSION: | |
977 | { | |
978 | int version; | |
979 | ||
980 | if (zhp == NULL) | |
981 | break; | |
982 | version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); | |
983 | if (intval < version) { | |
984 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
985 | "Can not downgrade; already at version %u"), | |
986 | version); | |
987 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
988 | goto error; | |
989 | } | |
990 | break; | |
991 | } | |
992 | ||
993 | case ZFS_PROP_RECORDSIZE: | |
994 | case ZFS_PROP_VOLBLOCKSIZE: | |
995 | /* must be power of two within SPA_{MIN,MAX}BLOCKSIZE */ | |
996 | if (intval < SPA_MINBLOCKSIZE || | |
997 | intval > SPA_MAXBLOCKSIZE || !ISP2(intval)) { | |
998 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
999 | "'%s' must be power of 2 from %u " | |
1000 | "to %uk"), propname, | |
1001 | (uint_t)SPA_MINBLOCKSIZE, | |
1002 | (uint_t)SPA_MAXBLOCKSIZE >> 10); | |
1003 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1004 | goto error; | |
1005 | } | |
1006 | break; | |
1007 | ||
428870ff BB |
1008 | case ZFS_PROP_MLSLABEL: |
1009 | { | |
d2c15e84 | 1010 | #ifdef HAVE_MLSLABEL |
428870ff BB |
1011 | /* |
1012 | * Verify the mlslabel string and convert to | |
1013 | * internal hex label string. | |
1014 | */ | |
1015 | ||
1016 | m_label_t *new_sl; | |
1017 | char *hex = NULL; /* internal label string */ | |
1018 | ||
1019 | /* Default value is already OK. */ | |
1020 | if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) | |
1021 | break; | |
1022 | ||
1023 | /* Verify the label can be converted to binary form */ | |
1024 | if (((new_sl = m_label_alloc(MAC_LABEL)) == NULL) || | |
1025 | (str_to_label(strval, &new_sl, MAC_LABEL, | |
1026 | L_NO_CORRECTION, NULL) == -1)) { | |
1027 | goto badlabel; | |
34dc7c2f BB |
1028 | } |
1029 | ||
428870ff BB |
1030 | /* Now translate to hex internal label string */ |
1031 | if (label_to_str(new_sl, &hex, M_INTERNAL, | |
1032 | DEF_NAMES) != 0) { | |
1033 | if (hex) | |
1034 | free(hex); | |
1035 | goto badlabel; | |
1036 | } | |
1037 | m_label_free(new_sl); | |
1038 | ||
1039 | /* If string is already in internal form, we're done. */ | |
1040 | if (strcmp(strval, hex) == 0) { | |
1041 | free(hex); | |
1042 | break; | |
1043 | } | |
1044 | ||
1045 | /* Replace the label string with the internal form. */ | |
1046 | (void) nvlist_remove(ret, zfs_prop_to_name(prop), | |
1047 | DATA_TYPE_STRING); | |
1048 | verify(nvlist_add_string(ret, zfs_prop_to_name(prop), | |
1049 | hex) == 0); | |
1050 | free(hex); | |
1051 | ||
34dc7c2f BB |
1052 | break; |
1053 | ||
428870ff BB |
1054 | badlabel: |
1055 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1056 | "invalid mlslabel '%s'"), strval); | |
1057 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1058 | m_label_free(new_sl); /* OK if null */ | |
1059 | goto error; | |
d2c15e84 BB |
1060 | #else |
1061 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1062 | "mlslabels are unsupported")); | |
1063 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1064 | goto error; | |
1065 | #endif /* HAVE_MLSLABEL */ | |
428870ff BB |
1066 | } |
1067 | ||
34dc7c2f BB |
1068 | case ZFS_PROP_MOUNTPOINT: |
1069 | { | |
1070 | namecheck_err_t why; | |
1071 | ||
1072 | if (strcmp(strval, ZFS_MOUNTPOINT_NONE) == 0 || | |
1073 | strcmp(strval, ZFS_MOUNTPOINT_LEGACY) == 0) | |
1074 | break; | |
1075 | ||
1076 | if (mountpoint_namecheck(strval, &why)) { | |
1077 | switch (why) { | |
1078 | case NAME_ERR_LEADING_SLASH: | |
1079 | zfs_error_aux(hdl, | |
1080 | dgettext(TEXT_DOMAIN, | |
1081 | "'%s' must be an absolute path, " | |
1082 | "'none', or 'legacy'"), propname); | |
1083 | break; | |
1084 | case NAME_ERR_TOOLONG: | |
1085 | zfs_error_aux(hdl, | |
1086 | dgettext(TEXT_DOMAIN, | |
1087 | "component of '%s' is too long"), | |
1088 | propname); | |
1089 | break; | |
e75c13c3 BB |
1090 | default: |
1091 | break; | |
34dc7c2f BB |
1092 | } |
1093 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1094 | goto error; | |
1095 | } | |
1096 | } | |
1097 | ||
1098 | /*FALLTHRU*/ | |
1099 | ||
1100 | case ZFS_PROP_SHARESMB: | |
1101 | case ZFS_PROP_SHARENFS: | |
1102 | /* | |
1103 | * For the mountpoint and sharenfs or sharesmb | |
1104 | * properties, check if it can be set in a | |
1105 | * global/non-global zone based on | |
1106 | * the zoned property value: | |
1107 | * | |
1108 | * global zone non-global zone | |
1109 | * -------------------------------------------------- | |
1110 | * zoned=on mountpoint (no) mountpoint (yes) | |
1111 | * sharenfs (no) sharenfs (no) | |
1112 | * sharesmb (no) sharesmb (no) | |
1113 | * | |
1114 | * zoned=off mountpoint (yes) N/A | |
1115 | * sharenfs (yes) | |
1116 | * sharesmb (yes) | |
1117 | */ | |
1118 | if (zoned) { | |
1119 | if (getzoneid() == GLOBAL_ZONEID) { | |
1120 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1121 | "'%s' cannot be set on " | |
1122 | "dataset in a non-global zone"), | |
1123 | propname); | |
1124 | (void) zfs_error(hdl, EZFS_ZONED, | |
1125 | errbuf); | |
1126 | goto error; | |
1127 | } else if (prop == ZFS_PROP_SHARENFS || | |
1128 | prop == ZFS_PROP_SHARESMB) { | |
1129 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1130 | "'%s' cannot be set in " | |
1131 | "a non-global zone"), propname); | |
1132 | (void) zfs_error(hdl, EZFS_ZONED, | |
1133 | errbuf); | |
1134 | goto error; | |
1135 | } | |
1136 | } else if (getzoneid() != GLOBAL_ZONEID) { | |
1137 | /* | |
1138 | * If zoned property is 'off', this must be in | |
9babb374 | 1139 | * a global zone. If not, something is wrong. |
34dc7c2f BB |
1140 | */ |
1141 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1142 | "'%s' cannot be set while dataset " | |
1143 | "'zoned' property is set"), propname); | |
1144 | (void) zfs_error(hdl, EZFS_ZONED, errbuf); | |
1145 | goto error; | |
1146 | } | |
1147 | ||
1148 | /* | |
1149 | * At this point, it is legitimate to set the | |
1150 | * property. Now we want to make sure that the | |
1151 | * property value is valid if it is sharenfs. | |
1152 | */ | |
1153 | if ((prop == ZFS_PROP_SHARENFS || | |
1154 | prop == ZFS_PROP_SHARESMB) && | |
1155 | strcmp(strval, "on") != 0 && | |
1156 | strcmp(strval, "off") != 0) { | |
1157 | zfs_share_proto_t proto; | |
1158 | ||
1159 | if (prop == ZFS_PROP_SHARESMB) | |
1160 | proto = PROTO_SMB; | |
1161 | else | |
1162 | proto = PROTO_NFS; | |
1163 | ||
1164 | /* | |
1165 | * Must be an valid sharing protocol | |
1166 | * option string so init the libshare | |
1167 | * in order to enable the parser and | |
1168 | * then parse the options. We use the | |
1169 | * control API since we don't care about | |
1170 | * the current configuration and don't | |
1171 | * want the overhead of loading it | |
1172 | * until we actually do something. | |
1173 | */ | |
1174 | ||
1175 | if (zfs_init_libshare(hdl, | |
1176 | SA_INIT_CONTROL_API) != SA_OK) { | |
1177 | /* | |
1178 | * An error occurred so we can't do | |
1179 | * anything | |
1180 | */ | |
1181 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1182 | "'%s' cannot be set: problem " | |
1183 | "in share initialization"), | |
1184 | propname); | |
1185 | (void) zfs_error(hdl, EZFS_BADPROP, | |
1186 | errbuf); | |
1187 | goto error; | |
1188 | } | |
1189 | ||
1190 | if (zfs_parse_options(strval, proto) != SA_OK) { | |
1191 | /* | |
1192 | * There was an error in parsing so | |
1193 | * deal with it by issuing an error | |
1194 | * message and leaving after | |
1195 | * uninitializing the the libshare | |
1196 | * interface. | |
1197 | */ | |
1198 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1199 | "'%s' cannot be set to invalid " | |
1200 | "options"), propname); | |
1201 | (void) zfs_error(hdl, EZFS_BADPROP, | |
1202 | errbuf); | |
1203 | zfs_uninit_libshare(hdl); | |
1204 | goto error; | |
1205 | } | |
1206 | zfs_uninit_libshare(hdl); | |
1207 | } | |
1208 | ||
1209 | break; | |
1210 | case ZFS_PROP_UTF8ONLY: | |
1211 | chosen_utf = (int)intval; | |
1212 | break; | |
1213 | case ZFS_PROP_NORMALIZE: | |
1214 | chosen_normal = (int)intval; | |
1215 | break; | |
e75c13c3 BB |
1216 | default: |
1217 | break; | |
34dc7c2f BB |
1218 | } |
1219 | ||
1220 | /* | |
1221 | * For changes to existing volumes, we have some additional | |
1222 | * checks to enforce. | |
1223 | */ | |
1224 | if (type == ZFS_TYPE_VOLUME && zhp != NULL) { | |
1225 | uint64_t volsize = zfs_prop_get_int(zhp, | |
1226 | ZFS_PROP_VOLSIZE); | |
1227 | uint64_t blocksize = zfs_prop_get_int(zhp, | |
1228 | ZFS_PROP_VOLBLOCKSIZE); | |
1229 | char buf[64]; | |
1230 | ||
1231 | switch (prop) { | |
1232 | case ZFS_PROP_RESERVATION: | |
1233 | case ZFS_PROP_REFRESERVATION: | |
1234 | if (intval > volsize) { | |
1235 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1236 | "'%s' is greater than current " | |
1237 | "volume size"), propname); | |
1238 | (void) zfs_error(hdl, EZFS_BADPROP, | |
1239 | errbuf); | |
1240 | goto error; | |
1241 | } | |
1242 | break; | |
1243 | ||
1244 | case ZFS_PROP_VOLSIZE: | |
1245 | if (intval % blocksize != 0) { | |
1246 | zfs_nicenum(blocksize, buf, | |
1247 | sizeof (buf)); | |
1248 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1249 | "'%s' must be a multiple of " | |
1250 | "volume block size (%s)"), | |
1251 | propname, buf); | |
1252 | (void) zfs_error(hdl, EZFS_BADPROP, | |
1253 | errbuf); | |
1254 | goto error; | |
1255 | } | |
1256 | ||
1257 | if (intval == 0) { | |
1258 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1259 | "'%s' cannot be zero"), | |
1260 | propname); | |
1261 | (void) zfs_error(hdl, EZFS_BADPROP, | |
1262 | errbuf); | |
1263 | goto error; | |
1264 | } | |
1265 | break; | |
e75c13c3 BB |
1266 | default: |
1267 | break; | |
34dc7c2f BB |
1268 | } |
1269 | } | |
1270 | } | |
1271 | ||
1272 | /* | |
1273 | * If normalization was chosen, but no UTF8 choice was made, | |
1274 | * enforce rejection of non-UTF8 names. | |
1275 | * | |
1276 | * If normalization was chosen, but rejecting non-UTF8 names | |
1277 | * was explicitly not chosen, it is an error. | |
1278 | */ | |
1279 | if (chosen_normal > 0 && chosen_utf < 0) { | |
1280 | if (nvlist_add_uint64(ret, | |
1281 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), 1) != 0) { | |
1282 | (void) no_memory(hdl); | |
1283 | goto error; | |
1284 | } | |
1285 | } else if (chosen_normal > 0 && chosen_utf == 0) { | |
1286 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1287 | "'%s' must be set 'on' if normalization chosen"), | |
1288 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); | |
1289 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1290 | goto error; | |
1291 | } | |
572e2857 BB |
1292 | return (ret); |
1293 | ||
1294 | error: | |
1295 | nvlist_free(ret); | |
1296 | return (NULL); | |
1297 | } | |
1298 | ||
1299 | int | |
1300 | zfs_add_synthetic_resv(zfs_handle_t *zhp, nvlist_t *nvl) | |
1301 | { | |
1302 | uint64_t old_volsize; | |
1303 | uint64_t new_volsize; | |
1304 | uint64_t old_reservation; | |
1305 | uint64_t new_reservation; | |
1306 | zfs_prop_t resv_prop; | |
34dc7c2f BB |
1307 | |
1308 | /* | |
1309 | * If this is an existing volume, and someone is setting the volsize, | |
1310 | * make sure that it matches the reservation, or add it if necessary. | |
1311 | */ | |
572e2857 BB |
1312 | old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); |
1313 | if (zfs_which_resv_prop(zhp, &resv_prop) < 0) | |
1314 | return (-1); | |
1315 | old_reservation = zfs_prop_get_int(zhp, resv_prop); | |
1316 | if ((zvol_volsize_to_reservation(old_volsize, zhp->zfs_props) != | |
1317 | old_reservation) || nvlist_lookup_uint64(nvl, | |
1318 | zfs_prop_to_name(resv_prop), &new_reservation) != ENOENT) { | |
1319 | return (0); | |
34dc7c2f | 1320 | } |
572e2857 BB |
1321 | if (nvlist_lookup_uint64(nvl, zfs_prop_to_name(ZFS_PROP_VOLSIZE), |
1322 | &new_volsize) != 0) | |
1323 | return (-1); | |
1324 | new_reservation = zvol_volsize_to_reservation(new_volsize, | |
1325 | zhp->zfs_props); | |
1326 | if (nvlist_add_uint64(nvl, zfs_prop_to_name(resv_prop), | |
1327 | new_reservation) != 0) { | |
1328 | (void) no_memory(zhp->zfs_hdl); | |
1329 | return (-1); | |
1330 | } | |
1331 | return (1); | |
34dc7c2f BB |
1332 | } |
1333 | ||
428870ff BB |
1334 | void |
1335 | zfs_setprop_error(libzfs_handle_t *hdl, zfs_prop_t prop, int err, | |
1336 | char *errbuf) | |
1337 | { | |
1338 | switch (err) { | |
1339 | ||
1340 | case ENOSPC: | |
1341 | /* | |
1342 | * For quotas and reservations, ENOSPC indicates | |
1343 | * something different; setting a quota or reservation | |
1344 | * doesn't use any disk space. | |
1345 | */ | |
1346 | switch (prop) { | |
1347 | case ZFS_PROP_QUOTA: | |
1348 | case ZFS_PROP_REFQUOTA: | |
1349 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1350 | "size is less than current used or " | |
1351 | "reserved space")); | |
1352 | (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); | |
1353 | break; | |
1354 | ||
1355 | case ZFS_PROP_RESERVATION: | |
1356 | case ZFS_PROP_REFRESERVATION: | |
1357 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1358 | "size is greater than available space")); | |
1359 | (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); | |
1360 | break; | |
1361 | ||
1362 | default: | |
1363 | (void) zfs_standard_error(hdl, err, errbuf); | |
1364 | break; | |
1365 | } | |
1366 | break; | |
1367 | ||
1368 | case EBUSY: | |
1369 | (void) zfs_standard_error(hdl, EBUSY, errbuf); | |
1370 | break; | |
1371 | ||
1372 | case EROFS: | |
1373 | (void) zfs_error(hdl, EZFS_DSREADONLY, errbuf); | |
1374 | break; | |
1375 | ||
1376 | case ENOTSUP: | |
1377 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1378 | "pool and or dataset must be upgraded to set this " | |
1379 | "property or value")); | |
1380 | (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); | |
1381 | break; | |
1382 | ||
1383 | case ERANGE: | |
1384 | if (prop == ZFS_PROP_COMPRESSION) { | |
1385 | (void) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1386 | "property setting is not allowed on " | |
1387 | "bootable datasets")); | |
1388 | (void) zfs_error(hdl, EZFS_NOTSUP, errbuf); | |
1389 | } else { | |
1390 | (void) zfs_standard_error(hdl, err, errbuf); | |
1391 | } | |
1392 | break; | |
1393 | ||
1394 | case EINVAL: | |
1395 | if (prop == ZPROP_INVAL) { | |
1396 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1397 | } else { | |
1398 | (void) zfs_standard_error(hdl, err, errbuf); | |
1399 | } | |
1400 | break; | |
1401 | ||
1402 | case EOVERFLOW: | |
1403 | /* | |
1404 | * This platform can't address a volume this big. | |
1405 | */ | |
1406 | #ifdef _ILP32 | |
1407 | if (prop == ZFS_PROP_VOLSIZE) { | |
1408 | (void) zfs_error(hdl, EZFS_VOLTOOBIG, errbuf); | |
1409 | break; | |
1410 | } | |
1411 | #endif | |
1412 | /* FALLTHROUGH */ | |
1413 | default: | |
1414 | (void) zfs_standard_error(hdl, err, errbuf); | |
1415 | } | |
1416 | } | |
1417 | ||
2cf7f52b BB |
1418 | static boolean_t |
1419 | zfs_is_namespace_prop(zfs_prop_t prop) | |
1420 | { | |
1421 | switch (prop) { | |
1422 | ||
1423 | case ZFS_PROP_ATIME: | |
a08ee875 | 1424 | case ZFS_PROP_RELATIME: |
2cf7f52b BB |
1425 | case ZFS_PROP_DEVICES: |
1426 | case ZFS_PROP_EXEC: | |
1427 | case ZFS_PROP_SETUID: | |
1428 | case ZFS_PROP_READONLY: | |
1429 | case ZFS_PROP_XATTR: | |
1430 | case ZFS_PROP_NBMAND: | |
1431 | return (B_TRUE); | |
1432 | ||
1433 | default: | |
1434 | return (B_FALSE); | |
1435 | } | |
1436 | } | |
1437 | ||
34dc7c2f BB |
1438 | /* |
1439 | * Given a property name and value, set the property for the given dataset. | |
1440 | */ | |
1441 | int | |
1442 | zfs_prop_set(zfs_handle_t *zhp, const char *propname, const char *propval) | |
1443 | { | |
a08ee875 | 1444 | zfs_cmd_t zc = {"\0"}; |
34dc7c2f BB |
1445 | int ret = -1; |
1446 | prop_changelist_t *cl = NULL; | |
1447 | char errbuf[1024]; | |
1448 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
1449 | nvlist_t *nvl = NULL, *realprops; | |
1450 | zfs_prop_t prop; | |
a08ee875 | 1451 | boolean_t do_prefix = B_TRUE; |
d4ed6673 | 1452 | int added_resv = 0; |
34dc7c2f BB |
1453 | |
1454 | (void) snprintf(errbuf, sizeof (errbuf), | |
1455 | dgettext(TEXT_DOMAIN, "cannot set property for '%s'"), | |
1456 | zhp->zfs_name); | |
1457 | ||
1458 | if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0 || | |
1459 | nvlist_add_string(nvl, propname, propval) != 0) { | |
1460 | (void) no_memory(hdl); | |
1461 | goto error; | |
1462 | } | |
1463 | ||
b128c09f | 1464 | if ((realprops = zfs_valid_proplist(hdl, zhp->zfs_type, nvl, |
34dc7c2f BB |
1465 | zfs_prop_get_int(zhp, ZFS_PROP_ZONED), zhp, errbuf)) == NULL) |
1466 | goto error; | |
1467 | ||
1468 | nvlist_free(nvl); | |
1469 | nvl = realprops; | |
1470 | ||
1471 | prop = zfs_name_to_prop(propname); | |
1472 | ||
572e2857 BB |
1473 | if (prop == ZFS_PROP_VOLSIZE) { |
1474 | if ((added_resv = zfs_add_synthetic_resv(zhp, nvl)) == -1) | |
1475 | goto error; | |
1476 | } | |
1477 | ||
b128c09f | 1478 | if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL) |
34dc7c2f BB |
1479 | goto error; |
1480 | ||
1481 | if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) { | |
1482 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1483 | "child dataset with inherited mountpoint is used " | |
1484 | "in a non-global zone")); | |
1485 | ret = zfs_error(hdl, EZFS_ZONED, errbuf); | |
1486 | goto error; | |
1487 | } | |
1488 | ||
b128c09f | 1489 | /* |
a08ee875 LG |
1490 | * We don't want to unmount & remount the dataset when changing |
1491 | * its canmount property to 'on' or 'noauto'. We only use | |
1492 | * the changelist logic to unmount when setting canmount=off. | |
b128c09f | 1493 | */ |
a08ee875 LG |
1494 | if (prop == ZFS_PROP_CANMOUNT) { |
1495 | uint64_t idx; | |
1496 | int err = zprop_string_to_index(prop, propval, &idx, | |
1497 | ZFS_TYPE_DATASET); | |
1498 | if (err == 0 && idx != ZFS_CANMOUNT_OFF) | |
1499 | do_prefix = B_FALSE; | |
1500 | } | |
34dc7c2f BB |
1501 | |
1502 | if (do_prefix && (ret = changelist_prefix(cl)) != 0) | |
b128c09f | 1503 | goto error; |
34dc7c2f BB |
1504 | |
1505 | /* | |
1506 | * Execute the corresponding ioctl() to set this property. | |
1507 | */ | |
1508 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
1509 | ||
1510 | if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0) | |
1511 | goto error; | |
1512 | ||
1513 | ret = zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); | |
9babb374 | 1514 | |
34dc7c2f | 1515 | if (ret != 0) { |
428870ff | 1516 | zfs_setprop_error(hdl, prop, errno, errbuf); |
572e2857 BB |
1517 | if (added_resv && errno == ENOSPC) { |
1518 | /* clean up the volsize property we tried to set */ | |
1519 | uint64_t old_volsize = zfs_prop_get_int(zhp, | |
1520 | ZFS_PROP_VOLSIZE); | |
1521 | nvlist_free(nvl); | |
1522 | zcmd_free_nvlists(&zc); | |
1523 | if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) | |
1524 | goto error; | |
1525 | if (nvlist_add_uint64(nvl, | |
1526 | zfs_prop_to_name(ZFS_PROP_VOLSIZE), | |
1527 | old_volsize) != 0) | |
1528 | goto error; | |
1529 | if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0) | |
1530 | goto error; | |
1531 | (void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); | |
1532 | } | |
34dc7c2f BB |
1533 | } else { |
1534 | if (do_prefix) | |
1535 | ret = changelist_postfix(cl); | |
1536 | ||
2cf7f52b BB |
1537 | if (ret == 0) { |
1538 | /* | |
1539 | * Refresh the statistics so the new property | |
1540 | * value is reflected. | |
1541 | */ | |
34dc7c2f | 1542 | (void) get_stats(zhp); |
2cf7f52b BB |
1543 | |
1544 | /* | |
1545 | * Remount the filesystem to propagate the change | |
1546 | * if one of the options handled by the generic | |
1547 | * Linux namespace layer has been modified. | |
1548 | */ | |
1549 | if (zfs_is_namespace_prop(prop) && | |
1550 | zfs_is_mounted(zhp, NULL)) | |
1551 | ret = zfs_mount(zhp, MNTOPT_REMOUNT, 0); | |
1552 | } | |
34dc7c2f BB |
1553 | } |
1554 | ||
1555 | error: | |
1556 | nvlist_free(nvl); | |
1557 | zcmd_free_nvlists(&zc); | |
1558 | if (cl) | |
1559 | changelist_free(cl); | |
1560 | return (ret); | |
1561 | } | |
1562 | ||
1563 | /* | |
428870ff BB |
1564 | * Given a property, inherit the value from the parent dataset, or if received |
1565 | * is TRUE, revert to the received value, if any. | |
34dc7c2f BB |
1566 | */ |
1567 | int | |
428870ff | 1568 | zfs_prop_inherit(zfs_handle_t *zhp, const char *propname, boolean_t received) |
34dc7c2f | 1569 | { |
a08ee875 | 1570 | zfs_cmd_t zc = {"\0"}; |
34dc7c2f BB |
1571 | int ret; |
1572 | prop_changelist_t *cl; | |
1573 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
1574 | char errbuf[1024]; | |
1575 | zfs_prop_t prop; | |
1576 | ||
1577 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
1578 | "cannot inherit %s for '%s'"), propname, zhp->zfs_name); | |
1579 | ||
428870ff | 1580 | zc.zc_cookie = received; |
34dc7c2f BB |
1581 | if ((prop = zfs_name_to_prop(propname)) == ZPROP_INVAL) { |
1582 | /* | |
1583 | * For user properties, the amount of work we have to do is very | |
1584 | * small, so just do it here. | |
1585 | */ | |
1586 | if (!zfs_prop_user(propname)) { | |
1587 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1588 | "invalid property")); | |
1589 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
1590 | } | |
1591 | ||
1592 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
1593 | (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); | |
1594 | ||
1595 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc) != 0) | |
1596 | return (zfs_standard_error(hdl, errno, errbuf)); | |
1597 | ||
1598 | return (0); | |
1599 | } | |
1600 | ||
1601 | /* | |
1602 | * Verify that this property is inheritable. | |
1603 | */ | |
1604 | if (zfs_prop_readonly(prop)) | |
1605 | return (zfs_error(hdl, EZFS_PROPREADONLY, errbuf)); | |
1606 | ||
428870ff | 1607 | if (!zfs_prop_inheritable(prop) && !received) |
34dc7c2f BB |
1608 | return (zfs_error(hdl, EZFS_PROPNONINHERIT, errbuf)); |
1609 | ||
1610 | /* | |
1611 | * Check to see if the value applies to this type | |
1612 | */ | |
1613 | if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) | |
1614 | return (zfs_error(hdl, EZFS_PROPTYPE, errbuf)); | |
1615 | ||
1616 | /* | |
572e2857 | 1617 | * Normalize the name, to get rid of shorthand abbreviations. |
34dc7c2f BB |
1618 | */ |
1619 | propname = zfs_prop_to_name(prop); | |
1620 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
1621 | (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); | |
1622 | ||
1623 | if (prop == ZFS_PROP_MOUNTPOINT && getzoneid() == GLOBAL_ZONEID && | |
1624 | zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { | |
1625 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1626 | "dataset is used in a non-global zone")); | |
1627 | return (zfs_error(hdl, EZFS_ZONED, errbuf)); | |
1628 | } | |
1629 | ||
1630 | /* | |
1631 | * Determine datasets which will be affected by this change, if any. | |
1632 | */ | |
b128c09f | 1633 | if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL) |
34dc7c2f BB |
1634 | return (-1); |
1635 | ||
1636 | if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) { | |
1637 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1638 | "child dataset with inherited mountpoint is used " | |
1639 | "in a non-global zone")); | |
1640 | ret = zfs_error(hdl, EZFS_ZONED, errbuf); | |
1641 | goto error; | |
1642 | } | |
1643 | ||
1644 | if ((ret = changelist_prefix(cl)) != 0) | |
1645 | goto error; | |
1646 | ||
1647 | if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc)) != 0) { | |
1648 | return (zfs_standard_error(hdl, errno, errbuf)); | |
1649 | } else { | |
1650 | ||
1651 | if ((ret = changelist_postfix(cl)) != 0) | |
1652 | goto error; | |
1653 | ||
1654 | /* | |
1655 | * Refresh the statistics so the new property is reflected. | |
1656 | */ | |
1657 | (void) get_stats(zhp); | |
1658 | } | |
1659 | ||
1660 | error: | |
1661 | changelist_free(cl); | |
1662 | return (ret); | |
1663 | } | |
1664 | ||
1665 | /* | |
1666 | * True DSL properties are stored in an nvlist. The following two functions | |
1667 | * extract them appropriately. | |
1668 | */ | |
2cf7f52b | 1669 | uint64_t |
34dc7c2f BB |
1670 | getprop_uint64(zfs_handle_t *zhp, zfs_prop_t prop, char **source) |
1671 | { | |
1672 | nvlist_t *nv; | |
1673 | uint64_t value; | |
1674 | ||
1675 | *source = NULL; | |
1676 | if (nvlist_lookup_nvlist(zhp->zfs_props, | |
1677 | zfs_prop_to_name(prop), &nv) == 0) { | |
1678 | verify(nvlist_lookup_uint64(nv, ZPROP_VALUE, &value) == 0); | |
1679 | (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); | |
1680 | } else { | |
9babb374 BB |
1681 | verify(!zhp->zfs_props_table || |
1682 | zhp->zfs_props_table[prop] == B_TRUE); | |
34dc7c2f BB |
1683 | value = zfs_prop_default_numeric(prop); |
1684 | *source = ""; | |
1685 | } | |
1686 | ||
1687 | return (value); | |
1688 | } | |
1689 | ||
1690 | static char * | |
1691 | getprop_string(zfs_handle_t *zhp, zfs_prop_t prop, char **source) | |
1692 | { | |
1693 | nvlist_t *nv; | |
1694 | char *value; | |
1695 | ||
1696 | *source = NULL; | |
1697 | if (nvlist_lookup_nvlist(zhp->zfs_props, | |
1698 | zfs_prop_to_name(prop), &nv) == 0) { | |
1699 | verify(nvlist_lookup_string(nv, ZPROP_VALUE, &value) == 0); | |
1700 | (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); | |
1701 | } else { | |
9babb374 BB |
1702 | verify(!zhp->zfs_props_table || |
1703 | zhp->zfs_props_table[prop] == B_TRUE); | |
34dc7c2f BB |
1704 | if ((value = (char *)zfs_prop_default_string(prop)) == NULL) |
1705 | value = ""; | |
1706 | *source = ""; | |
1707 | } | |
1708 | ||
1709 | return (value); | |
1710 | } | |
1711 | ||
428870ff BB |
1712 | static boolean_t |
1713 | zfs_is_recvd_props_mode(zfs_handle_t *zhp) | |
1714 | { | |
1715 | return (zhp->zfs_props == zhp->zfs_recvd_props); | |
1716 | } | |
1717 | ||
1718 | static void | |
1719 | zfs_set_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) | |
1720 | { | |
1721 | *cookie = (uint64_t)(uintptr_t)zhp->zfs_props; | |
1722 | zhp->zfs_props = zhp->zfs_recvd_props; | |
1723 | } | |
1724 | ||
1725 | static void | |
1726 | zfs_unset_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) | |
1727 | { | |
1728 | zhp->zfs_props = (nvlist_t *)(uintptr_t)*cookie; | |
1729 | *cookie = 0; | |
1730 | } | |
1731 | ||
34dc7c2f BB |
1732 | /* |
1733 | * Internal function for getting a numeric property. Both zfs_prop_get() and | |
1734 | * zfs_prop_get_int() are built using this interface. | |
1735 | * | |
1736 | * Certain properties can be overridden using 'mount -o'. In this case, scan | |
9a616b5d | 1737 | * the contents of the /etc/mtab entry, searching for the appropriate options. |
34dc7c2f BB |
1738 | * If they differ from the on-disk values, report the current values and mark |
1739 | * the source "temporary". | |
1740 | */ | |
1741 | static int | |
1742 | get_numeric_property(zfs_handle_t *zhp, zfs_prop_t prop, zprop_source_t *src, | |
1743 | char **source, uint64_t *val) | |
1744 | { | |
a08ee875 | 1745 | zfs_cmd_t zc = {"\0"}; |
34dc7c2f BB |
1746 | nvlist_t *zplprops = NULL; |
1747 | struct mnttab mnt; | |
1748 | char *mntopt_on = NULL; | |
1749 | char *mntopt_off = NULL; | |
428870ff | 1750 | boolean_t received = zfs_is_recvd_props_mode(zhp); |
34dc7c2f BB |
1751 | |
1752 | *source = NULL; | |
1753 | ||
1754 | switch (prop) { | |
1755 | case ZFS_PROP_ATIME: | |
1756 | mntopt_on = MNTOPT_ATIME; | |
1757 | mntopt_off = MNTOPT_NOATIME; | |
1758 | break; | |
1759 | ||
a08ee875 LG |
1760 | case ZFS_PROP_RELATIME: |
1761 | mntopt_on = MNTOPT_RELATIME; | |
1762 | mntopt_off = MNTOPT_NORELATIME; | |
1763 | break; | |
1764 | ||
34dc7c2f BB |
1765 | case ZFS_PROP_DEVICES: |
1766 | mntopt_on = MNTOPT_DEVICES; | |
1767 | mntopt_off = MNTOPT_NODEVICES; | |
1768 | break; | |
1769 | ||
1770 | case ZFS_PROP_EXEC: | |
1771 | mntopt_on = MNTOPT_EXEC; | |
1772 | mntopt_off = MNTOPT_NOEXEC; | |
1773 | break; | |
1774 | ||
1775 | case ZFS_PROP_READONLY: | |
1776 | mntopt_on = MNTOPT_RO; | |
1777 | mntopt_off = MNTOPT_RW; | |
1778 | break; | |
1779 | ||
1780 | case ZFS_PROP_SETUID: | |
1781 | mntopt_on = MNTOPT_SETUID; | |
1782 | mntopt_off = MNTOPT_NOSETUID; | |
1783 | break; | |
1784 | ||
1785 | case ZFS_PROP_XATTR: | |
1786 | mntopt_on = MNTOPT_XATTR; | |
1787 | mntopt_off = MNTOPT_NOXATTR; | |
1788 | break; | |
1789 | ||
1790 | case ZFS_PROP_NBMAND: | |
1791 | mntopt_on = MNTOPT_NBMAND; | |
1792 | mntopt_off = MNTOPT_NONBMAND; | |
1793 | break; | |
e75c13c3 BB |
1794 | default: |
1795 | break; | |
34dc7c2f BB |
1796 | } |
1797 | ||
1798 | /* | |
1799 | * Because looking up the mount options is potentially expensive | |
9a616b5d | 1800 | * (iterating over all of /etc/mtab), we defer its calculation until |
34dc7c2f BB |
1801 | * we're looking up a property which requires its presence. |
1802 | */ | |
1803 | if (!zhp->zfs_mntcheck && | |
1804 | (mntopt_on != NULL || prop == ZFS_PROP_MOUNTED)) { | |
fb5f0bc8 BB |
1805 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
1806 | struct mnttab entry; | |
34dc7c2f | 1807 | |
fb5f0bc8 BB |
1808 | if (libzfs_mnttab_find(hdl, zhp->zfs_name, &entry) == 0) { |
1809 | zhp->zfs_mntopts = zfs_strdup(hdl, | |
34dc7c2f BB |
1810 | entry.mnt_mntopts); |
1811 | if (zhp->zfs_mntopts == NULL) | |
1812 | return (-1); | |
1813 | } | |
1814 | ||
1815 | zhp->zfs_mntcheck = B_TRUE; | |
1816 | } | |
1817 | ||
1818 | if (zhp->zfs_mntopts == NULL) | |
1819 | mnt.mnt_mntopts = ""; | |
1820 | else | |
1821 | mnt.mnt_mntopts = zhp->zfs_mntopts; | |
1822 | ||
1823 | switch (prop) { | |
1824 | case ZFS_PROP_ATIME: | |
a08ee875 | 1825 | case ZFS_PROP_RELATIME: |
34dc7c2f BB |
1826 | case ZFS_PROP_DEVICES: |
1827 | case ZFS_PROP_EXEC: | |
1828 | case ZFS_PROP_READONLY: | |
1829 | case ZFS_PROP_SETUID: | |
1830 | case ZFS_PROP_XATTR: | |
1831 | case ZFS_PROP_NBMAND: | |
1832 | *val = getprop_uint64(zhp, prop, source); | |
1833 | ||
428870ff BB |
1834 | if (received) |
1835 | break; | |
1836 | ||
34dc7c2f BB |
1837 | if (hasmntopt(&mnt, mntopt_on) && !*val) { |
1838 | *val = B_TRUE; | |
1839 | if (src) | |
1840 | *src = ZPROP_SRC_TEMPORARY; | |
1841 | } else if (hasmntopt(&mnt, mntopt_off) && *val) { | |
1842 | *val = B_FALSE; | |
1843 | if (src) | |
1844 | *src = ZPROP_SRC_TEMPORARY; | |
1845 | } | |
1846 | break; | |
1847 | ||
1848 | case ZFS_PROP_CANMOUNT: | |
428870ff | 1849 | case ZFS_PROP_VOLSIZE: |
34dc7c2f BB |
1850 | case ZFS_PROP_QUOTA: |
1851 | case ZFS_PROP_REFQUOTA: | |
1852 | case ZFS_PROP_RESERVATION: | |
1853 | case ZFS_PROP_REFRESERVATION: | |
1854 | *val = getprop_uint64(zhp, prop, source); | |
428870ff BB |
1855 | |
1856 | if (*source == NULL) { | |
1857 | /* not default, must be local */ | |
34dc7c2f | 1858 | *source = zhp->zfs_name; |
428870ff | 1859 | } |
34dc7c2f BB |
1860 | break; |
1861 | ||
1862 | case ZFS_PROP_MOUNTED: | |
1863 | *val = (zhp->zfs_mntopts != NULL); | |
1864 | break; | |
1865 | ||
1866 | case ZFS_PROP_NUMCLONES: | |
1867 | *val = zhp->zfs_dmustats.dds_num_clones; | |
1868 | break; | |
1869 | ||
1870 | case ZFS_PROP_VERSION: | |
1871 | case ZFS_PROP_NORMALIZE: | |
1872 | case ZFS_PROP_UTF8ONLY: | |
1873 | case ZFS_PROP_CASE: | |
1874 | if (!zfs_prop_valid_for_type(prop, zhp->zfs_head_type) || | |
1875 | zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) | |
1876 | return (-1); | |
1877 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
1878 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_OBJSET_ZPLPROPS, &zc)) { | |
1879 | zcmd_free_nvlists(&zc); | |
45d1cae3 | 1880 | return (-1); |
34dc7c2f BB |
1881 | } |
1882 | if (zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &zplprops) != 0 || | |
1883 | nvlist_lookup_uint64(zplprops, zfs_prop_to_name(prop), | |
1884 | val) != 0) { | |
1885 | zcmd_free_nvlists(&zc); | |
45d1cae3 | 1886 | return (-1); |
34dc7c2f BB |
1887 | } |
1888 | if (zplprops) | |
1889 | nvlist_free(zplprops); | |
1890 | zcmd_free_nvlists(&zc); | |
1891 | break; | |
1892 | ||
a08ee875 LG |
1893 | case ZFS_PROP_INCONSISTENT: |
1894 | *val = zhp->zfs_dmustats.dds_inconsistent; | |
1895 | break; | |
1896 | ||
34dc7c2f BB |
1897 | default: |
1898 | switch (zfs_prop_get_type(prop)) { | |
1899 | case PROP_TYPE_NUMBER: | |
1900 | case PROP_TYPE_INDEX: | |
1901 | *val = getprop_uint64(zhp, prop, source); | |
b128c09f | 1902 | /* |
9babb374 | 1903 | * If we tried to use a default value for a |
b128c09f | 1904 | * readonly property, it means that it was not |
428870ff | 1905 | * present. |
b128c09f BB |
1906 | */ |
1907 | if (zfs_prop_readonly(prop) && | |
428870ff BB |
1908 | *source != NULL && (*source)[0] == '\0') { |
1909 | *source = NULL; | |
b128c09f | 1910 | } |
34dc7c2f BB |
1911 | break; |
1912 | ||
1913 | case PROP_TYPE_STRING: | |
1914 | default: | |
1915 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
1916 | "cannot get non-numeric property")); | |
1917 | return (zfs_error(zhp->zfs_hdl, EZFS_BADPROP, | |
1918 | dgettext(TEXT_DOMAIN, "internal error"))); | |
1919 | } | |
1920 | } | |
1921 | ||
1922 | return (0); | |
1923 | } | |
1924 | ||
1925 | /* | |
1926 | * Calculate the source type, given the raw source string. | |
1927 | */ | |
1928 | static void | |
1929 | get_source(zfs_handle_t *zhp, zprop_source_t *srctype, char *source, | |
1930 | char *statbuf, size_t statlen) | |
1931 | { | |
1932 | if (statbuf == NULL || *srctype == ZPROP_SRC_TEMPORARY) | |
1933 | return; | |
1934 | ||
1935 | if (source == NULL) { | |
1936 | *srctype = ZPROP_SRC_NONE; | |
1937 | } else if (source[0] == '\0') { | |
1938 | *srctype = ZPROP_SRC_DEFAULT; | |
428870ff BB |
1939 | } else if (strstr(source, ZPROP_SOURCE_VAL_RECVD) != NULL) { |
1940 | *srctype = ZPROP_SRC_RECEIVED; | |
34dc7c2f BB |
1941 | } else { |
1942 | if (strcmp(source, zhp->zfs_name) == 0) { | |
1943 | *srctype = ZPROP_SRC_LOCAL; | |
1944 | } else { | |
1945 | (void) strlcpy(statbuf, source, statlen); | |
1946 | *srctype = ZPROP_SRC_INHERITED; | |
1947 | } | |
1948 | } | |
1949 | ||
1950 | } | |
1951 | ||
428870ff BB |
1952 | int |
1953 | zfs_prop_get_recvd(zfs_handle_t *zhp, const char *propname, char *propbuf, | |
1954 | size_t proplen, boolean_t literal) | |
1955 | { | |
1956 | zfs_prop_t prop; | |
1957 | int err = 0; | |
1958 | ||
1959 | if (zhp->zfs_recvd_props == NULL) | |
1960 | if (get_recvd_props_ioctl(zhp) != 0) | |
1961 | return (-1); | |
1962 | ||
1963 | prop = zfs_name_to_prop(propname); | |
1964 | ||
1965 | if (prop != ZPROP_INVAL) { | |
1966 | uint64_t cookie; | |
1967 | if (!nvlist_exists(zhp->zfs_recvd_props, propname)) | |
1968 | return (-1); | |
1969 | zfs_set_recvd_props_mode(zhp, &cookie); | |
1970 | err = zfs_prop_get(zhp, prop, propbuf, proplen, | |
1971 | NULL, NULL, 0, literal); | |
1972 | zfs_unset_recvd_props_mode(zhp, &cookie); | |
428870ff BB |
1973 | } else { |
1974 | nvlist_t *propval; | |
1975 | char *recvdval; | |
1976 | if (nvlist_lookup_nvlist(zhp->zfs_recvd_props, | |
1977 | propname, &propval) != 0) | |
1978 | return (-1); | |
1979 | verify(nvlist_lookup_string(propval, ZPROP_VALUE, | |
1980 | &recvdval) == 0); | |
1981 | (void) strlcpy(propbuf, recvdval, proplen); | |
1982 | } | |
1983 | ||
1984 | return (err == 0 ? 0 : -1); | |
1985 | } | |
1986 | ||
330d06f9 MA |
1987 | static int |
1988 | get_clones_string(zfs_handle_t *zhp, char *propbuf, size_t proplen) | |
1989 | { | |
1990 | nvlist_t *value; | |
1991 | nvpair_t *pair; | |
1992 | ||
1993 | value = zfs_get_clones_nvl(zhp); | |
1994 | if (value == NULL) | |
1995 | return (-1); | |
1996 | ||
1997 | propbuf[0] = '\0'; | |
1998 | for (pair = nvlist_next_nvpair(value, NULL); pair != NULL; | |
1999 | pair = nvlist_next_nvpair(value, pair)) { | |
2000 | if (propbuf[0] != '\0') | |
2001 | (void) strlcat(propbuf, ",", proplen); | |
2002 | (void) strlcat(propbuf, nvpair_name(pair), proplen); | |
2003 | } | |
2004 | ||
2005 | return (0); | |
2006 | } | |
2007 | ||
2008 | struct get_clones_arg { | |
2009 | uint64_t numclones; | |
2010 | nvlist_t *value; | |
2011 | const char *origin; | |
2012 | char buf[ZFS_MAXNAMELEN]; | |
2013 | }; | |
2014 | ||
2015 | int | |
2016 | get_clones_cb(zfs_handle_t *zhp, void *arg) | |
2017 | { | |
2018 | struct get_clones_arg *gca = arg; | |
2019 | ||
2020 | if (gca->numclones == 0) { | |
2021 | zfs_close(zhp); | |
2022 | return (0); | |
2023 | } | |
2024 | ||
2025 | if (zfs_prop_get(zhp, ZFS_PROP_ORIGIN, gca->buf, sizeof (gca->buf), | |
2026 | NULL, NULL, 0, B_TRUE) != 0) | |
2027 | goto out; | |
2028 | if (strcmp(gca->buf, gca->origin) == 0) { | |
a08ee875 | 2029 | fnvlist_add_boolean(gca->value, zfs_get_name(zhp)); |
330d06f9 MA |
2030 | gca->numclones--; |
2031 | } | |
2032 | ||
2033 | out: | |
2034 | (void) zfs_iter_children(zhp, get_clones_cb, gca); | |
2035 | zfs_close(zhp); | |
2036 | return (0); | |
2037 | } | |
2038 | ||
2039 | nvlist_t * | |
2040 | zfs_get_clones_nvl(zfs_handle_t *zhp) | |
2041 | { | |
2042 | nvlist_t *nv, *value; | |
2043 | ||
2044 | if (nvlist_lookup_nvlist(zhp->zfs_props, | |
2045 | zfs_prop_to_name(ZFS_PROP_CLONES), &nv) != 0) { | |
2046 | struct get_clones_arg gca; | |
2047 | ||
2048 | /* | |
2049 | * if this is a snapshot, then the kernel wasn't able | |
2050 | * to get the clones. Do it by slowly iterating. | |
2051 | */ | |
2052 | if (zhp->zfs_type != ZFS_TYPE_SNAPSHOT) | |
2053 | return (NULL); | |
2054 | if (nvlist_alloc(&nv, NV_UNIQUE_NAME, 0) != 0) | |
2055 | return (NULL); | |
2056 | if (nvlist_alloc(&value, NV_UNIQUE_NAME, 0) != 0) { | |
2057 | nvlist_free(nv); | |
2058 | return (NULL); | |
2059 | } | |
2060 | ||
2061 | gca.numclones = zfs_prop_get_int(zhp, ZFS_PROP_NUMCLONES); | |
2062 | gca.value = value; | |
2063 | gca.origin = zhp->zfs_name; | |
2064 | ||
2065 | if (gca.numclones != 0) { | |
2066 | zfs_handle_t *root; | |
2067 | char pool[ZFS_MAXNAMELEN]; | |
2068 | char *cp = pool; | |
2069 | ||
2070 | /* get the pool name */ | |
2071 | (void) strlcpy(pool, zhp->zfs_name, sizeof (pool)); | |
2072 | (void) strsep(&cp, "/@"); | |
2073 | root = zfs_open(zhp->zfs_hdl, pool, | |
2074 | ZFS_TYPE_FILESYSTEM); | |
2075 | ||
2076 | (void) get_clones_cb(root, &gca); | |
2077 | } | |
2078 | ||
2079 | if (gca.numclones != 0 || | |
2080 | nvlist_add_nvlist(nv, ZPROP_VALUE, value) != 0 || | |
2081 | nvlist_add_nvlist(zhp->zfs_props, | |
2082 | zfs_prop_to_name(ZFS_PROP_CLONES), nv) != 0) { | |
2083 | nvlist_free(nv); | |
2084 | nvlist_free(value); | |
2085 | return (NULL); | |
2086 | } | |
2087 | nvlist_free(nv); | |
2088 | nvlist_free(value); | |
2089 | verify(0 == nvlist_lookup_nvlist(zhp->zfs_props, | |
2090 | zfs_prop_to_name(ZFS_PROP_CLONES), &nv)); | |
2091 | } | |
2092 | ||
2093 | verify(nvlist_lookup_nvlist(nv, ZPROP_VALUE, &value) == 0); | |
2094 | ||
2095 | return (value); | |
2096 | } | |
2097 | ||
34dc7c2f BB |
2098 | /* |
2099 | * Retrieve a property from the given object. If 'literal' is specified, then | |
2100 | * numbers are left as exact values. Otherwise, numbers are converted to a | |
2101 | * human-readable form. | |
2102 | * | |
2103 | * Returns 0 on success, or -1 on error. | |
2104 | */ | |
2105 | int | |
2106 | zfs_prop_get(zfs_handle_t *zhp, zfs_prop_t prop, char *propbuf, size_t proplen, | |
2107 | zprop_source_t *src, char *statbuf, size_t statlen, boolean_t literal) | |
2108 | { | |
2109 | char *source = NULL; | |
2110 | uint64_t val; | |
2111 | char *str; | |
34dc7c2f | 2112 | const char *strval; |
428870ff | 2113 | boolean_t received = zfs_is_recvd_props_mode(zhp); |
34dc7c2f BB |
2114 | |
2115 | /* | |
2116 | * Check to see if this property applies to our object | |
2117 | */ | |
2118 | if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) | |
2119 | return (-1); | |
2120 | ||
428870ff BB |
2121 | if (received && zfs_prop_readonly(prop)) |
2122 | return (-1); | |
2123 | ||
34dc7c2f BB |
2124 | if (src) |
2125 | *src = ZPROP_SRC_NONE; | |
2126 | ||
2127 | switch (prop) { | |
2128 | case ZFS_PROP_CREATION: | |
2129 | /* | |
2130 | * 'creation' is a time_t stored in the statistics. We convert | |
2131 | * this into a string unless 'literal' is specified. | |
2132 | */ | |
2133 | { | |
2134 | val = getprop_uint64(zhp, prop, &source); | |
2135 | time_t time = (time_t)val; | |
2136 | struct tm t; | |
2137 | ||
2138 | if (literal || | |
2139 | localtime_r(&time, &t) == NULL || | |
2140 | strftime(propbuf, proplen, "%a %b %e %k:%M %Y", | |
2141 | &t) == 0) | |
a08ee875 LG |
2142 | (void) snprintf(propbuf, proplen, "%llu", |
2143 | (u_longlong_t) val); | |
34dc7c2f BB |
2144 | } |
2145 | break; | |
2146 | ||
2147 | case ZFS_PROP_MOUNTPOINT: | |
2148 | /* | |
2149 | * Getting the precise mountpoint can be tricky. | |
2150 | * | |
2151 | * - for 'none' or 'legacy', return those values. | |
34dc7c2f BB |
2152 | * - for inherited mountpoints, we want to take everything |
2153 | * after our ancestor and append it to the inherited value. | |
2154 | * | |
2155 | * If the pool has an alternate root, we want to prepend that | |
2156 | * root to any values we return. | |
2157 | */ | |
b128c09f | 2158 | |
34dc7c2f BB |
2159 | str = getprop_string(zhp, prop, &source); |
2160 | ||
b128c09f BB |
2161 | if (str[0] == '/') { |
2162 | char buf[MAXPATHLEN]; | |
2163 | char *root = buf; | |
428870ff | 2164 | const char *relpath; |
34dc7c2f | 2165 | |
428870ff BB |
2166 | /* |
2167 | * If we inherit the mountpoint, even from a dataset | |
2168 | * with a received value, the source will be the path of | |
2169 | * the dataset we inherit from. If source is | |
2170 | * ZPROP_SOURCE_VAL_RECVD, the received value is not | |
2171 | * inherited. | |
2172 | */ | |
2173 | if (strcmp(source, ZPROP_SOURCE_VAL_RECVD) == 0) { | |
2174 | relpath = ""; | |
2175 | } else { | |
2176 | relpath = zhp->zfs_name + strlen(source); | |
2177 | if (relpath[0] == '/') | |
2178 | relpath++; | |
2179 | } | |
b128c09f BB |
2180 | |
2181 | if ((zpool_get_prop(zhp->zpool_hdl, | |
2182 | ZPOOL_PROP_ALTROOT, buf, MAXPATHLEN, NULL)) || | |
2183 | (strcmp(root, "-") == 0)) | |
2184 | root[0] = '\0'; | |
2185 | /* | |
2186 | * Special case an alternate root of '/'. This will | |
2187 | * avoid having multiple leading slashes in the | |
2188 | * mountpoint path. | |
2189 | */ | |
2190 | if (strcmp(root, "/") == 0) | |
2191 | root++; | |
2192 | ||
2193 | /* | |
2194 | * If the mountpoint is '/' then skip over this | |
2195 | * if we are obtaining either an alternate root or | |
2196 | * an inherited mountpoint. | |
2197 | */ | |
2198 | if (str[1] == '\0' && (root[0] != '\0' || | |
2199 | relpath[0] != '\0')) | |
34dc7c2f BB |
2200 | str++; |
2201 | ||
2202 | if (relpath[0] == '\0') | |
2203 | (void) snprintf(propbuf, proplen, "%s%s", | |
2204 | root, str); | |
2205 | else | |
2206 | (void) snprintf(propbuf, proplen, "%s%s%s%s", | |
2207 | root, str, relpath[0] == '@' ? "" : "/", | |
2208 | relpath); | |
2209 | } else { | |
2210 | /* 'legacy' or 'none' */ | |
2211 | (void) strlcpy(propbuf, str, proplen); | |
2212 | } | |
2213 | ||
2214 | break; | |
2215 | ||
2216 | case ZFS_PROP_ORIGIN: | |
2217 | (void) strlcpy(propbuf, getprop_string(zhp, prop, &source), | |
2218 | proplen); | |
2219 | /* | |
2220 | * If there is no parent at all, return failure to indicate that | |
2221 | * it doesn't apply to this dataset. | |
2222 | */ | |
2223 | if (propbuf[0] == '\0') | |
2224 | return (-1); | |
2225 | break; | |
2226 | ||
330d06f9 MA |
2227 | case ZFS_PROP_CLONES: |
2228 | if (get_clones_string(zhp, propbuf, proplen) != 0) | |
2229 | return (-1); | |
2230 | break; | |
2231 | ||
34dc7c2f BB |
2232 | case ZFS_PROP_QUOTA: |
2233 | case ZFS_PROP_REFQUOTA: | |
2234 | case ZFS_PROP_RESERVATION: | |
2235 | case ZFS_PROP_REFRESERVATION: | |
2236 | ||
2237 | if (get_numeric_property(zhp, prop, src, &source, &val) != 0) | |
2238 | return (-1); | |
2239 | ||
2240 | /* | |
2241 | * If quota or reservation is 0, we translate this into 'none' | |
2242 | * (unless literal is set), and indicate that it's the default | |
2243 | * value. Otherwise, we print the number nicely and indicate | |
2244 | * that its set locally. | |
2245 | */ | |
2246 | if (val == 0) { | |
2247 | if (literal) | |
2248 | (void) strlcpy(propbuf, "0", proplen); | |
2249 | else | |
2250 | (void) strlcpy(propbuf, "none", proplen); | |
2251 | } else { | |
2252 | if (literal) | |
2253 | (void) snprintf(propbuf, proplen, "%llu", | |
2254 | (u_longlong_t)val); | |
2255 | else | |
2256 | zfs_nicenum(val, propbuf, proplen); | |
2257 | } | |
2258 | break; | |
2259 | ||
f5fc4aca | 2260 | case ZFS_PROP_REFRATIO: |
34dc7c2f BB |
2261 | case ZFS_PROP_COMPRESSRATIO: |
2262 | if (get_numeric_property(zhp, prop, src, &source, &val) != 0) | |
2263 | return (-1); | |
428870ff BB |
2264 | (void) snprintf(propbuf, proplen, "%llu.%02llux", |
2265 | (u_longlong_t)(val / 100), | |
2266 | (u_longlong_t)(val % 100)); | |
34dc7c2f BB |
2267 | break; |
2268 | ||
2269 | case ZFS_PROP_TYPE: | |
2270 | switch (zhp->zfs_type) { | |
2271 | case ZFS_TYPE_FILESYSTEM: | |
2272 | str = "filesystem"; | |
2273 | break; | |
2274 | case ZFS_TYPE_VOLUME: | |
2275 | str = "volume"; | |
2276 | break; | |
2277 | case ZFS_TYPE_SNAPSHOT: | |
2278 | str = "snapshot"; | |
2279 | break; | |
2280 | default: | |
2281 | abort(); | |
2282 | } | |
2283 | (void) snprintf(propbuf, proplen, "%s", str); | |
2284 | break; | |
2285 | ||
2286 | case ZFS_PROP_MOUNTED: | |
2287 | /* | |
2288 | * The 'mounted' property is a pseudo-property that described | |
2289 | * whether the filesystem is currently mounted. Even though | |
2290 | * it's a boolean value, the typical values of "on" and "off" | |
2291 | * don't make sense, so we translate to "yes" and "no". | |
2292 | */ | |
2293 | if (get_numeric_property(zhp, ZFS_PROP_MOUNTED, | |
2294 | src, &source, &val) != 0) | |
2295 | return (-1); | |
2296 | if (val) | |
2297 | (void) strlcpy(propbuf, "yes", proplen); | |
2298 | else | |
2299 | (void) strlcpy(propbuf, "no", proplen); | |
2300 | break; | |
2301 | ||
2302 | case ZFS_PROP_NAME: | |
2303 | /* | |
2304 | * The 'name' property is a pseudo-property derived from the | |
2305 | * dataset name. It is presented as a real property to simplify | |
2306 | * consumers. | |
2307 | */ | |
2308 | (void) strlcpy(propbuf, zhp->zfs_name, proplen); | |
2309 | break; | |
2310 | ||
428870ff BB |
2311 | case ZFS_PROP_MLSLABEL: |
2312 | { | |
d2c15e84 | 2313 | #ifdef HAVE_MLSLABEL |
428870ff BB |
2314 | m_label_t *new_sl = NULL; |
2315 | char *ascii = NULL; /* human readable label */ | |
2316 | ||
2317 | (void) strlcpy(propbuf, | |
2318 | getprop_string(zhp, prop, &source), proplen); | |
2319 | ||
2320 | if (literal || (strcasecmp(propbuf, | |
2321 | ZFS_MLSLABEL_DEFAULT) == 0)) | |
2322 | break; | |
2323 | ||
2324 | /* | |
2325 | * Try to translate the internal hex string to | |
2326 | * human-readable output. If there are any | |
2327 | * problems just use the hex string. | |
2328 | */ | |
2329 | ||
2330 | if (str_to_label(propbuf, &new_sl, MAC_LABEL, | |
2331 | L_NO_CORRECTION, NULL) == -1) { | |
2332 | m_label_free(new_sl); | |
2333 | break; | |
2334 | } | |
2335 | ||
2336 | if (label_to_str(new_sl, &ascii, M_LABEL, | |
2337 | DEF_NAMES) != 0) { | |
2338 | if (ascii) | |
2339 | free(ascii); | |
2340 | m_label_free(new_sl); | |
2341 | break; | |
2342 | } | |
2343 | m_label_free(new_sl); | |
2344 | ||
2345 | (void) strlcpy(propbuf, ascii, proplen); | |
2346 | free(ascii); | |
d2c15e84 BB |
2347 | #else |
2348 | (void) strlcpy(propbuf, | |
2349 | getprop_string(zhp, prop, &source), proplen); | |
2350 | #endif /* HAVE_MLSLABEL */ | |
428870ff BB |
2351 | } |
2352 | break; | |
2353 | ||
08b1b21d GA |
2354 | case ZFS_PROP_GUID: |
2355 | /* | |
2356 | * GUIDs are stored as numbers, but they are identifiers. | |
2357 | * We don't want them to be pretty printed, because pretty | |
2358 | * printing mangles the ID into a truncated and useless value. | |
2359 | */ | |
2360 | if (get_numeric_property(zhp, prop, src, &source, &val) != 0) | |
2361 | return (-1); | |
2362 | (void) snprintf(propbuf, proplen, "%llu", (u_longlong_t)val); | |
2363 | break; | |
2364 | ||
34dc7c2f BB |
2365 | default: |
2366 | switch (zfs_prop_get_type(prop)) { | |
2367 | case PROP_TYPE_NUMBER: | |
2368 | if (get_numeric_property(zhp, prop, src, | |
2369 | &source, &val) != 0) | |
2370 | return (-1); | |
2371 | if (literal) | |
2372 | (void) snprintf(propbuf, proplen, "%llu", | |
2373 | (u_longlong_t)val); | |
2374 | else | |
2375 | zfs_nicenum(val, propbuf, proplen); | |
2376 | break; | |
2377 | ||
2378 | case PROP_TYPE_STRING: | |
2379 | (void) strlcpy(propbuf, | |
2380 | getprop_string(zhp, prop, &source), proplen); | |
2381 | break; | |
2382 | ||
2383 | case PROP_TYPE_INDEX: | |
2384 | if (get_numeric_property(zhp, prop, src, | |
2385 | &source, &val) != 0) | |
2386 | return (-1); | |
2387 | if (zfs_prop_index_to_string(prop, val, &strval) != 0) | |
2388 | return (-1); | |
2389 | (void) strlcpy(propbuf, strval, proplen); | |
2390 | break; | |
2391 | ||
2392 | default: | |
2393 | abort(); | |
2394 | } | |
2395 | } | |
2396 | ||
2397 | get_source(zhp, src, source, statbuf, statlen); | |
2398 | ||
2399 | return (0); | |
2400 | } | |
2401 | ||
2402 | /* | |
2403 | * Utility function to get the given numeric property. Does no validation that | |
2404 | * the given property is the appropriate type; should only be used with | |
2405 | * hard-coded property types. | |
2406 | */ | |
2407 | uint64_t | |
2408 | zfs_prop_get_int(zfs_handle_t *zhp, zfs_prop_t prop) | |
2409 | { | |
2410 | char *source; | |
2411 | uint64_t val; | |
2412 | ||
2413 | (void) get_numeric_property(zhp, prop, NULL, &source, &val); | |
2414 | ||
2415 | return (val); | |
2416 | } | |
2417 | ||
2418 | int | |
2419 | zfs_prop_set_int(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t val) | |
2420 | { | |
2421 | char buf[64]; | |
2422 | ||
9babb374 | 2423 | (void) snprintf(buf, sizeof (buf), "%llu", (longlong_t)val); |
34dc7c2f BB |
2424 | return (zfs_prop_set(zhp, zfs_prop_to_name(prop), buf)); |
2425 | } | |
2426 | ||
2427 | /* | |
2428 | * Similar to zfs_prop_get(), but returns the value as an integer. | |
2429 | */ | |
2430 | int | |
2431 | zfs_prop_get_numeric(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t *value, | |
2432 | zprop_source_t *src, char *statbuf, size_t statlen) | |
2433 | { | |
2434 | char *source; | |
2435 | ||
2436 | /* | |
2437 | * Check to see if this property applies to our object | |
2438 | */ | |
2439 | if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) { | |
2440 | return (zfs_error_fmt(zhp->zfs_hdl, EZFS_PROPTYPE, | |
2441 | dgettext(TEXT_DOMAIN, "cannot get property '%s'"), | |
2442 | zfs_prop_to_name(prop))); | |
2443 | } | |
2444 | ||
2445 | if (src) | |
2446 | *src = ZPROP_SRC_NONE; | |
2447 | ||
2448 | if (get_numeric_property(zhp, prop, src, &source, value) != 0) | |
2449 | return (-1); | |
2450 | ||
2451 | get_source(zhp, src, source, statbuf, statlen); | |
2452 | ||
2453 | return (0); | |
2454 | } | |
2455 | ||
be160928 | 2456 | #ifdef HAVE_IDMAP |
9babb374 BB |
2457 | static int |
2458 | idmap_id_to_numeric_domain_rid(uid_t id, boolean_t isuser, | |
2459 | char **domainp, idmap_rid_t *ridp) | |
2460 | { | |
9babb374 BB |
2461 | idmap_get_handle_t *get_hdl = NULL; |
2462 | idmap_stat status; | |
2463 | int err = EINVAL; | |
2464 | ||
572e2857 | 2465 | if (idmap_get_create(&get_hdl) != IDMAP_SUCCESS) |
9babb374 BB |
2466 | goto out; |
2467 | ||
2468 | if (isuser) { | |
2469 | err = idmap_get_sidbyuid(get_hdl, id, | |
2470 | IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); | |
2471 | } else { | |
2472 | err = idmap_get_sidbygid(get_hdl, id, | |
2473 | IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); | |
2474 | } | |
2475 | if (err == IDMAP_SUCCESS && | |
2476 | idmap_get_mappings(get_hdl) == IDMAP_SUCCESS && | |
2477 | status == IDMAP_SUCCESS) | |
2478 | err = 0; | |
2479 | else | |
2480 | err = EINVAL; | |
2481 | out: | |
2482 | if (get_hdl) | |
2483 | idmap_get_destroy(get_hdl); | |
9babb374 BB |
2484 | return (err); |
2485 | } | |
be160928 | 2486 | #endif /* HAVE_IDMAP */ |
9babb374 BB |
2487 | |
2488 | /* | |
2489 | * convert the propname into parameters needed by kernel | |
2490 | * Eg: userquota@ahrens -> ZFS_PROP_USERQUOTA, "", 126829 | |
2491 | * Eg: userused@matt@domain -> ZFS_PROP_USERUSED, "S-1-123-456", 789 | |
ada8ec1e SC |
2492 | * Eg: groupquota@staff -> ZFS_PROP_GROUPQUOTA, "", 1234 |
2493 | * Eg: groupused@staff -> ZFS_PROP_GROUPUSED, "", 1234 | |
9babb374 BB |
2494 | */ |
2495 | static int | |
2496 | userquota_propname_decode(const char *propname, boolean_t zoned, | |
2497 | zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp) | |
2498 | { | |
2499 | zfs_userquota_prop_t type; | |
ada8ec1e | 2500 | char *cp; |
9babb374 | 2501 | boolean_t isuser; |
ada8ec1e SC |
2502 | boolean_t isgroup; |
2503 | struct passwd *pw; | |
2504 | struct group *gr; | |
9babb374 BB |
2505 | |
2506 | domain[0] = '\0'; | |
2507 | ||
2508 | /* Figure out the property type ({user|group}{quota|space}) */ | |
2509 | for (type = 0; type < ZFS_NUM_USERQUOTA_PROPS; type++) { | |
2510 | if (strncmp(propname, zfs_userquota_prop_prefixes[type], | |
2511 | strlen(zfs_userquota_prop_prefixes[type])) == 0) | |
2512 | break; | |
2513 | } | |
2514 | if (type == ZFS_NUM_USERQUOTA_PROPS) | |
2515 | return (EINVAL); | |
2516 | *typep = type; | |
2517 | ||
ada8ec1e SC |
2518 | isuser = (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_USERUSED); |
2519 | isgroup = (type == ZFS_PROP_GROUPQUOTA || type == ZFS_PROP_GROUPUSED); | |
9babb374 BB |
2520 | |
2521 | cp = strchr(propname, '@') + 1; | |
2522 | ||
ada8ec1e SC |
2523 | if (isuser && (pw = getpwnam(cp)) != NULL) { |
2524 | if (zoned && getzoneid() == GLOBAL_ZONEID) | |
2525 | return (ENOENT); | |
2526 | *ridp = pw->pw_uid; | |
2527 | } else if (isgroup && (gr = getgrnam(cp)) != NULL) { | |
2528 | if (zoned && getzoneid() == GLOBAL_ZONEID) | |
2529 | return (ENOENT); | |
2530 | *ridp = gr->gr_gid; | |
2531 | } else if (strchr(cp, '@')) { | |
be160928 | 2532 | #ifdef HAVE_IDMAP |
9babb374 BB |
2533 | /* |
2534 | * It's a SID name (eg "user@domain") that needs to be | |
45d1cae3 | 2535 | * turned into S-1-domainID-RID. |
9babb374 | 2536 | */ |
45d1cae3 | 2537 | directory_error_t e; |
ada8ec1e SC |
2538 | char *numericsid = NULL; |
2539 | char *end; | |
2540 | ||
9babb374 BB |
2541 | if (zoned && getzoneid() == GLOBAL_ZONEID) |
2542 | return (ENOENT); | |
45d1cae3 BB |
2543 | if (isuser) { |
2544 | e = directory_sid_from_user_name(NULL, | |
2545 | cp, &numericsid); | |
2546 | } else { | |
2547 | e = directory_sid_from_group_name(NULL, | |
2548 | cp, &numericsid); | |
2549 | } | |
2550 | if (e != NULL) { | |
2551 | directory_error_free(e); | |
9babb374 | 2552 | return (ENOENT); |
45d1cae3 BB |
2553 | } |
2554 | if (numericsid == NULL) | |
9babb374 | 2555 | return (ENOENT); |
45d1cae3 | 2556 | cp = numericsid; |
45d1cae3 | 2557 | (void) strlcpy(domain, cp, domainlen); |
9babb374 BB |
2558 | cp = strrchr(domain, '-'); |
2559 | *cp = '\0'; | |
2560 | cp++; | |
2561 | ||
2562 | errno = 0; | |
2563 | *ridp = strtoull(cp, &end, 10); | |
ada8ec1e SC |
2564 | free(numericsid); |
2565 | ||
9babb374 BB |
2566 | if (errno != 0 || *end != '\0') |
2567 | return (EINVAL); | |
ada8ec1e SC |
2568 | #else |
2569 | return (ENOSYS); | |
2570 | #endif /* HAVE_IDMAP */ | |
9babb374 BB |
2571 | } else { |
2572 | /* It's a user/group ID (eg "12345"). */ | |
ada8ec1e | 2573 | uid_t id; |
ada8ec1e | 2574 | char *end; |
ada8ec1e | 2575 | id = strtoul(cp, &end, 10); |
9babb374 BB |
2576 | if (*end != '\0') |
2577 | return (EINVAL); | |
2578 | if (id > MAXUID) { | |
5e6320cd | 2579 | #ifdef HAVE_IDMAP |
9babb374 | 2580 | /* It's an ephemeral ID. */ |
5e6320cd MM |
2581 | idmap_rid_t rid; |
2582 | char *mapdomain; | |
2583 | ||
9babb374 BB |
2584 | if (idmap_id_to_numeric_domain_rid(id, isuser, |
2585 | &mapdomain, &rid) != 0) | |
2586 | return (ENOENT); | |
45d1cae3 | 2587 | (void) strlcpy(domain, mapdomain, domainlen); |
9babb374 | 2588 | *ridp = rid; |
5e6320cd MM |
2589 | #else |
2590 | return (ENOSYS); | |
2591 | #endif /* HAVE_IDMAP */ | |
9babb374 BB |
2592 | } else { |
2593 | *ridp = id; | |
2594 | } | |
2595 | } | |
2596 | ||
2597 | return (0); | |
2598 | } | |
2599 | ||
2600 | static int | |
2601 | zfs_prop_get_userquota_common(zfs_handle_t *zhp, const char *propname, | |
2602 | uint64_t *propvalue, zfs_userquota_prop_t *typep) | |
2603 | { | |
2604 | int err; | |
a08ee875 | 2605 | zfs_cmd_t zc = {"\0"}; |
9babb374 | 2606 | |
330d06f9 | 2607 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); |
9babb374 BB |
2608 | |
2609 | err = userquota_propname_decode(propname, | |
2610 | zfs_prop_get_int(zhp, ZFS_PROP_ZONED), | |
2611 | typep, zc.zc_value, sizeof (zc.zc_value), &zc.zc_guid); | |
2612 | zc.zc_objset_type = *typep; | |
2613 | if (err) | |
2614 | return (err); | |
2615 | ||
2616 | err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_USERSPACE_ONE, &zc); | |
2617 | if (err) | |
2618 | return (err); | |
2619 | ||
2620 | *propvalue = zc.zc_cookie; | |
2621 | return (0); | |
2622 | } | |
2623 | ||
2624 | int | |
2625 | zfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname, | |
2626 | uint64_t *propvalue) | |
2627 | { | |
2628 | zfs_userquota_prop_t type; | |
2629 | ||
2630 | return (zfs_prop_get_userquota_common(zhp, propname, propvalue, | |
2631 | &type)); | |
2632 | } | |
2633 | ||
2634 | int | |
2635 | zfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname, | |
2636 | char *propbuf, int proplen, boolean_t literal) | |
2637 | { | |
2638 | int err; | |
2639 | uint64_t propvalue; | |
2640 | zfs_userquota_prop_t type; | |
2641 | ||
2642 | err = zfs_prop_get_userquota_common(zhp, propname, &propvalue, | |
2643 | &type); | |
2644 | ||
2645 | if (err) | |
2646 | return (err); | |
2647 | ||
2648 | if (literal) { | |
b8864a23 | 2649 | (void) snprintf(propbuf, proplen, "%llu", |
a08ee875 | 2650 | (u_longlong_t)propvalue); |
9babb374 BB |
2651 | } else if (propvalue == 0 && |
2652 | (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_GROUPQUOTA)) { | |
2653 | (void) strlcpy(propbuf, "none", proplen); | |
2654 | } else { | |
2655 | zfs_nicenum(propvalue, propbuf, proplen); | |
2656 | } | |
2657 | return (0); | |
2658 | } | |
2659 | ||
330d06f9 MA |
2660 | int |
2661 | zfs_prop_get_written_int(zfs_handle_t *zhp, const char *propname, | |
2662 | uint64_t *propvalue) | |
34dc7c2f | 2663 | { |
330d06f9 | 2664 | int err; |
a08ee875 | 2665 | zfs_cmd_t zc = {"\0"}; |
330d06f9 | 2666 | const char *snapname; |
34dc7c2f | 2667 | |
330d06f9 | 2668 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); |
34dc7c2f | 2669 | |
330d06f9 MA |
2670 | snapname = strchr(propname, '@') + 1; |
2671 | if (strchr(snapname, '@')) { | |
2672 | (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); | |
2673 | } else { | |
2674 | /* snapname is the short name, append it to zhp's fsname */ | |
2675 | char *cp; | |
2676 | ||
2677 | (void) strlcpy(zc.zc_value, zhp->zfs_name, | |
2678 | sizeof (zc.zc_value)); | |
2679 | cp = strchr(zc.zc_value, '@'); | |
2680 | if (cp != NULL) | |
2681 | *cp = '\0'; | |
2682 | (void) strlcat(zc.zc_value, "@", sizeof (zc.zc_value)); | |
2683 | (void) strlcat(zc.zc_value, snapname, sizeof (zc.zc_value)); | |
2684 | } | |
fb5f0bc8 | 2685 | |
330d06f9 MA |
2686 | err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_SPACE_WRITTEN, &zc); |
2687 | if (err) | |
2688 | return (err); | |
fb5f0bc8 | 2689 | |
330d06f9 MA |
2690 | *propvalue = zc.zc_cookie; |
2691 | return (0); | |
fb5f0bc8 BB |
2692 | } |
2693 | ||
34dc7c2f | 2694 | int |
330d06f9 MA |
2695 | zfs_prop_get_written(zfs_handle_t *zhp, const char *propname, |
2696 | char *propbuf, int proplen, boolean_t literal) | |
34dc7c2f | 2697 | { |
330d06f9 MA |
2698 | int err; |
2699 | uint64_t propvalue; | |
34dc7c2f | 2700 | |
330d06f9 | 2701 | err = zfs_prop_get_written_int(zhp, propname, &propvalue); |
fb5f0bc8 | 2702 | |
330d06f9 MA |
2703 | if (err) |
2704 | return (err); | |
34dc7c2f | 2705 | |
330d06f9 | 2706 | if (literal) { |
a08ee875 LG |
2707 | (void) snprintf(propbuf, proplen, "%llu", |
2708 | (u_longlong_t)propvalue); | |
330d06f9 MA |
2709 | } else { |
2710 | zfs_nicenum(propvalue, propbuf, proplen); | |
34dc7c2f | 2711 | } |
330d06f9 MA |
2712 | |
2713 | return (0); | |
34dc7c2f BB |
2714 | } |
2715 | ||
34dc7c2f | 2716 | /* |
330d06f9 | 2717 | * Returns the name of the given zfs handle. |
34dc7c2f | 2718 | */ |
330d06f9 MA |
2719 | const char * |
2720 | zfs_get_name(const zfs_handle_t *zhp) | |
34dc7c2f | 2721 | { |
330d06f9 MA |
2722 | return (zhp->zfs_name); |
2723 | } | |
34dc7c2f | 2724 | |
330d06f9 MA |
2725 | /* |
2726 | * Returns the type of the given zfs handle. | |
2727 | */ | |
2728 | zfs_type_t | |
2729 | zfs_get_type(const zfs_handle_t *zhp) | |
2730 | { | |
2731 | return (zhp->zfs_type); | |
34dc7c2f BB |
2732 | } |
2733 | ||
428870ff BB |
2734 | /* |
2735 | * Is one dataset name a child dataset of another? | |
2736 | * | |
2737 | * Needs to handle these cases: | |
2738 | * Dataset 1 "a/foo" "a/foo" "a/foo" "a/foo" | |
2739 | * Dataset 2 "a/fo" "a/foobar" "a/bar/baz" "a/foo/bar" | |
2740 | * Descendant? No. No. No. Yes. | |
2741 | */ | |
2742 | static boolean_t | |
2743 | is_descendant(const char *ds1, const char *ds2) | |
2744 | { | |
2745 | size_t d1len = strlen(ds1); | |
2746 | ||
2747 | /* ds2 can't be a descendant if it's smaller */ | |
2748 | if (strlen(ds2) < d1len) | |
2749 | return (B_FALSE); | |
2750 | ||
2751 | /* otherwise, compare strings and verify that there's a '/' char */ | |
2752 | return (ds2[d1len] == '/' && (strncmp(ds1, ds2, d1len) == 0)); | |
2753 | } | |
2754 | ||
34dc7c2f BB |
2755 | /* |
2756 | * Given a complete name, return just the portion that refers to the parent. | |
330d06f9 MA |
2757 | * Will return -1 if there is no parent (path is just the name of the |
2758 | * pool). | |
34dc7c2f BB |
2759 | */ |
2760 | static int | |
2761 | parent_name(const char *path, char *buf, size_t buflen) | |
2762 | { | |
330d06f9 | 2763 | char *slashp; |
34dc7c2f | 2764 | |
330d06f9 | 2765 | (void) strlcpy(buf, path, buflen); |
34dc7c2f | 2766 | |
330d06f9 MA |
2767 | if ((slashp = strrchr(buf, '/')) == NULL) |
2768 | return (-1); | |
2769 | *slashp = '\0'; | |
34dc7c2f BB |
2770 | |
2771 | return (0); | |
2772 | } | |
2773 | ||
2774 | /* | |
2775 | * If accept_ancestor is false, then check to make sure that the given path has | |
2776 | * a parent, and that it exists. If accept_ancestor is true, then find the | |
2777 | * closest existing ancestor for the given path. In prefixlen return the | |
2778 | * length of already existing prefix of the given path. We also fetch the | |
2779 | * 'zoned' property, which is used to validate property settings when creating | |
2780 | * new datasets. | |
2781 | */ | |
2782 | static int | |
2783 | check_parents(libzfs_handle_t *hdl, const char *path, uint64_t *zoned, | |
2784 | boolean_t accept_ancestor, int *prefixlen) | |
2785 | { | |
a08ee875 | 2786 | zfs_cmd_t zc = {"\0"}; |
34dc7c2f BB |
2787 | char parent[ZFS_MAXNAMELEN]; |
2788 | char *slash; | |
2789 | zfs_handle_t *zhp; | |
2790 | char errbuf[1024]; | |
428870ff | 2791 | uint64_t is_zoned; |
34dc7c2f | 2792 | |
fb5f0bc8 BB |
2793 | (void) snprintf(errbuf, sizeof (errbuf), |
2794 | dgettext(TEXT_DOMAIN, "cannot create '%s'"), path); | |
34dc7c2f BB |
2795 | |
2796 | /* get parent, and check to see if this is just a pool */ | |
2797 | if (parent_name(path, parent, sizeof (parent)) != 0) { | |
2798 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2799 | "missing dataset name")); | |
2800 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
2801 | } | |
2802 | ||
2803 | /* check to see if the pool exists */ | |
2804 | if ((slash = strchr(parent, '/')) == NULL) | |
2805 | slash = parent + strlen(parent); | |
2806 | (void) strncpy(zc.zc_name, parent, slash - parent); | |
2807 | zc.zc_name[slash - parent] = '\0'; | |
2808 | if (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, &zc) != 0 && | |
2809 | errno == ENOENT) { | |
2810 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2811 | "no such pool '%s'"), zc.zc_name); | |
2812 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
2813 | } | |
2814 | ||
2815 | /* check to see if the parent dataset exists */ | |
2816 | while ((zhp = make_dataset_handle(hdl, parent)) == NULL) { | |
2817 | if (errno == ENOENT && accept_ancestor) { | |
2818 | /* | |
2819 | * Go deeper to find an ancestor, give up on top level. | |
2820 | */ | |
2821 | if (parent_name(parent, parent, sizeof (parent)) != 0) { | |
2822 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2823 | "no such pool '%s'"), zc.zc_name); | |
2824 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
2825 | } | |
2826 | } else if (errno == ENOENT) { | |
2827 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2828 | "parent does not exist")); | |
2829 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
2830 | } else | |
2831 | return (zfs_standard_error(hdl, errno, errbuf)); | |
2832 | } | |
2833 | ||
428870ff BB |
2834 | is_zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); |
2835 | if (zoned != NULL) | |
2836 | *zoned = is_zoned; | |
2837 | ||
34dc7c2f | 2838 | /* we are in a non-global zone, but parent is in the global zone */ |
428870ff | 2839 | if (getzoneid() != GLOBAL_ZONEID && !is_zoned) { |
34dc7c2f BB |
2840 | (void) zfs_standard_error(hdl, EPERM, errbuf); |
2841 | zfs_close(zhp); | |
2842 | return (-1); | |
2843 | } | |
2844 | ||
2845 | /* make sure parent is a filesystem */ | |
2846 | if (zfs_get_type(zhp) != ZFS_TYPE_FILESYSTEM) { | |
2847 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2848 | "parent is not a filesystem")); | |
2849 | (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); | |
2850 | zfs_close(zhp); | |
2851 | return (-1); | |
2852 | } | |
2853 | ||
2854 | zfs_close(zhp); | |
2855 | if (prefixlen != NULL) | |
2856 | *prefixlen = strlen(parent); | |
2857 | return (0); | |
2858 | } | |
2859 | ||
2860 | /* | |
2861 | * Finds whether the dataset of the given type(s) exists. | |
2862 | */ | |
2863 | boolean_t | |
2864 | zfs_dataset_exists(libzfs_handle_t *hdl, const char *path, zfs_type_t types) | |
2865 | { | |
2866 | zfs_handle_t *zhp; | |
2867 | ||
2868 | if (!zfs_validate_name(hdl, path, types, B_FALSE)) | |
2869 | return (B_FALSE); | |
2870 | ||
2871 | /* | |
2872 | * Try to get stats for the dataset, which will tell us if it exists. | |
2873 | */ | |
2874 | if ((zhp = make_dataset_handle(hdl, path)) != NULL) { | |
2875 | int ds_type = zhp->zfs_type; | |
2876 | ||
2877 | zfs_close(zhp); | |
2878 | if (types & ds_type) | |
2879 | return (B_TRUE); | |
2880 | } | |
2881 | return (B_FALSE); | |
2882 | } | |
2883 | ||
2884 | /* | |
2885 | * Given a path to 'target', create all the ancestors between | |
2886 | * the prefixlen portion of the path, and the target itself. | |
2887 | * Fail if the initial prefixlen-ancestor does not already exist. | |
2888 | */ | |
2889 | int | |
2890 | create_parents(libzfs_handle_t *hdl, char *target, int prefixlen) | |
2891 | { | |
2892 | zfs_handle_t *h; | |
2893 | char *cp; | |
2894 | const char *opname; | |
2895 | ||
2896 | /* make sure prefix exists */ | |
2897 | cp = target + prefixlen; | |
2898 | if (*cp != '/') { | |
2899 | assert(strchr(cp, '/') == NULL); | |
2900 | h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); | |
2901 | } else { | |
2902 | *cp = '\0'; | |
2903 | h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); | |
2904 | *cp = '/'; | |
2905 | } | |
2906 | if (h == NULL) | |
2907 | return (-1); | |
2908 | zfs_close(h); | |
2909 | ||
2910 | /* | |
2911 | * Attempt to create, mount, and share any ancestor filesystems, | |
2912 | * up to the prefixlen-long one. | |
2913 | */ | |
2914 | for (cp = target + prefixlen + 1; | |
c65aa5b2 | 2915 | (cp = strchr(cp, '/')); *cp = '/', cp++) { |
34dc7c2f BB |
2916 | |
2917 | *cp = '\0'; | |
2918 | ||
2919 | h = make_dataset_handle(hdl, target); | |
2920 | if (h) { | |
2921 | /* it already exists, nothing to do here */ | |
2922 | zfs_close(h); | |
2923 | continue; | |
2924 | } | |
2925 | ||
34dc7c2f BB |
2926 | if (zfs_create(hdl, target, ZFS_TYPE_FILESYSTEM, |
2927 | NULL) != 0) { | |
34dc7c2f BB |
2928 | opname = dgettext(TEXT_DOMAIN, "create"); |
2929 | goto ancestorerr; | |
2930 | } | |
2931 | ||
34dc7c2f BB |
2932 | h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); |
2933 | if (h == NULL) { | |
2934 | opname = dgettext(TEXT_DOMAIN, "open"); | |
2935 | goto ancestorerr; | |
2936 | } | |
2937 | ||
2938 | if (zfs_mount(h, NULL, 0) != 0) { | |
2939 | opname = dgettext(TEXT_DOMAIN, "mount"); | |
2940 | goto ancestorerr; | |
2941 | } | |
2942 | ||
2943 | if (zfs_share(h) != 0) { | |
2944 | opname = dgettext(TEXT_DOMAIN, "share"); | |
2945 | goto ancestorerr; | |
2946 | } | |
2947 | ||
2948 | zfs_close(h); | |
2949 | } | |
2950 | ||
2951 | return (0); | |
2952 | ||
2953 | ancestorerr: | |
2954 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2955 | "failed to %s ancestor '%s'"), opname, target); | |
2956 | return (-1); | |
2957 | } | |
2958 | ||
2959 | /* | |
2960 | * Creates non-existing ancestors of the given path. | |
2961 | */ | |
2962 | int | |
2963 | zfs_create_ancestors(libzfs_handle_t *hdl, const char *path) | |
2964 | { | |
2965 | int prefix; | |
34dc7c2f | 2966 | char *path_copy; |
d4ed6673 | 2967 | int rc = 0; |
34dc7c2f | 2968 | |
428870ff | 2969 | if (check_parents(hdl, path, NULL, B_TRUE, &prefix) != 0) |
34dc7c2f BB |
2970 | return (-1); |
2971 | ||
2972 | if ((path_copy = strdup(path)) != NULL) { | |
2973 | rc = create_parents(hdl, path_copy, prefix); | |
2974 | free(path_copy); | |
2975 | } | |
2976 | if (path_copy == NULL || rc != 0) | |
2977 | return (-1); | |
2978 | ||
2979 | return (0); | |
2980 | } | |
2981 | ||
2982 | /* | |
2983 | * Create a new filesystem or volume. | |
2984 | */ | |
2985 | int | |
2986 | zfs_create(libzfs_handle_t *hdl, const char *path, zfs_type_t type, | |
2987 | nvlist_t *props) | |
2988 | { | |
34dc7c2f BB |
2989 | int ret; |
2990 | uint64_t size = 0; | |
2991 | uint64_t blocksize = zfs_prop_default_numeric(ZFS_PROP_VOLBLOCKSIZE); | |
2992 | char errbuf[1024]; | |
2993 | uint64_t zoned; | |
a08ee875 | 2994 | dmu_objset_type_t ost; |
34dc7c2f BB |
2995 | |
2996 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
2997 | "cannot create '%s'"), path); | |
2998 | ||
2999 | /* validate the path, taking care to note the extended error message */ | |
3000 | if (!zfs_validate_name(hdl, path, type, B_TRUE)) | |
3001 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
3002 | ||
3003 | /* validate parents exist */ | |
3004 | if (check_parents(hdl, path, &zoned, B_FALSE, NULL) != 0) | |
3005 | return (-1); | |
3006 | ||
3007 | /* | |
3008 | * The failure modes when creating a dataset of a different type over | |
3009 | * one that already exists is a little strange. In particular, if you | |
3010 | * try to create a dataset on top of an existing dataset, the ioctl() | |
3011 | * will return ENOENT, not EEXIST. To prevent this from happening, we | |
3012 | * first try to see if the dataset exists. | |
3013 | */ | |
a08ee875 | 3014 | if (zfs_dataset_exists(hdl, path, ZFS_TYPE_DATASET)) { |
34dc7c2f BB |
3015 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
3016 | "dataset already exists")); | |
3017 | return (zfs_error(hdl, EZFS_EXISTS, errbuf)); | |
3018 | } | |
3019 | ||
3020 | if (type == ZFS_TYPE_VOLUME) | |
a08ee875 | 3021 | ost = DMU_OST_ZVOL; |
34dc7c2f | 3022 | else |
a08ee875 | 3023 | ost = DMU_OST_ZFS; |
34dc7c2f | 3024 | |
b128c09f | 3025 | if (props && (props = zfs_valid_proplist(hdl, type, props, |
34dc7c2f BB |
3026 | zoned, NULL, errbuf)) == 0) |
3027 | return (-1); | |
3028 | ||
3029 | if (type == ZFS_TYPE_VOLUME) { | |
3030 | /* | |
3031 | * If we are creating a volume, the size and block size must | |
3032 | * satisfy a few restraints. First, the blocksize must be a | |
3033 | * valid block size between SPA_{MIN,MAX}BLOCKSIZE. Second, the | |
3034 | * volsize must be a multiple of the block size, and cannot be | |
3035 | * zero. | |
3036 | */ | |
3037 | if (props == NULL || nvlist_lookup_uint64(props, | |
3038 | zfs_prop_to_name(ZFS_PROP_VOLSIZE), &size) != 0) { | |
3039 | nvlist_free(props); | |
3040 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3041 | "missing volume size")); | |
3042 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
3043 | } | |
3044 | ||
3045 | if ((ret = nvlist_lookup_uint64(props, | |
3046 | zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
3047 | &blocksize)) != 0) { | |
3048 | if (ret == ENOENT) { | |
3049 | blocksize = zfs_prop_default_numeric( | |
3050 | ZFS_PROP_VOLBLOCKSIZE); | |
3051 | } else { | |
3052 | nvlist_free(props); | |
3053 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3054 | "missing volume block size")); | |
3055 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
3056 | } | |
3057 | } | |
3058 | ||
3059 | if (size == 0) { | |
3060 | nvlist_free(props); | |
3061 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3062 | "volume size cannot be zero")); | |
3063 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
3064 | } | |
3065 | ||
3066 | if (size % blocksize != 0) { | |
3067 | nvlist_free(props); | |
3068 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3069 | "volume size must be a multiple of volume block " | |
3070 | "size")); | |
3071 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
3072 | } | |
3073 | } | |
3074 | ||
34dc7c2f | 3075 | /* create the dataset */ |
a08ee875 LG |
3076 | ret = lzc_create(path, ost, props); |
3077 | nvlist_free(props); | |
34dc7c2f BB |
3078 | |
3079 | /* check for failure */ | |
3080 | if (ret != 0) { | |
3081 | char parent[ZFS_MAXNAMELEN]; | |
3082 | (void) parent_name(path, parent, sizeof (parent)); | |
3083 | ||
3084 | switch (errno) { | |
3085 | case ENOENT: | |
3086 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3087 | "no such parent '%s'"), parent); | |
3088 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
3089 | ||
3090 | case EINVAL: | |
3091 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3092 | "parent '%s' is not a filesystem"), parent); | |
3093 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
3094 | ||
3095 | case EDOM: | |
3096 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3097 | "volume block size must be power of 2 from " | |
3098 | "%u to %uk"), | |
3099 | (uint_t)SPA_MINBLOCKSIZE, | |
3100 | (uint_t)SPA_MAXBLOCKSIZE >> 10); | |
3101 | ||
3102 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
3103 | ||
3104 | case ENOTSUP: | |
3105 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3106 | "pool must be upgraded to set this " | |
3107 | "property or value")); | |
3108 | return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); | |
3109 | #ifdef _ILP32 | |
3110 | case EOVERFLOW: | |
3111 | /* | |
3112 | * This platform can't address a volume this big. | |
3113 | */ | |
3114 | if (type == ZFS_TYPE_VOLUME) | |
3115 | return (zfs_error(hdl, EZFS_VOLTOOBIG, | |
3116 | errbuf)); | |
3117 | #endif | |
3118 | /* FALLTHROUGH */ | |
3119 | default: | |
3120 | return (zfs_standard_error(hdl, errno, errbuf)); | |
3121 | } | |
3122 | } | |
3123 | ||
3124 | return (0); | |
3125 | } | |
3126 | ||
3127 | /* | |
3128 | * Destroys the given dataset. The caller must make sure that the filesystem | |
e956d651 CS |
3129 | * isn't mounted, and that there are no active dependents. If the file system |
3130 | * does not exist this function does nothing. | |
34dc7c2f BB |
3131 | */ |
3132 | int | |
45d1cae3 | 3133 | zfs_destroy(zfs_handle_t *zhp, boolean_t defer) |
34dc7c2f | 3134 | { |
a08ee875 | 3135 | zfs_cmd_t zc = {"\0"}; |
34dc7c2f BB |
3136 | |
3137 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
3138 | ||
3139 | if (ZFS_IS_VOLUME(zhp)) { | |
34dc7c2f BB |
3140 | zc.zc_objset_type = DMU_OST_ZVOL; |
3141 | } else { | |
3142 | zc.zc_objset_type = DMU_OST_ZFS; | |
3143 | } | |
3144 | ||
45d1cae3 | 3145 | zc.zc_defer_destroy = defer; |
e956d651 CS |
3146 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_DESTROY, &zc) != 0 && |
3147 | errno != ENOENT) { | |
34dc7c2f BB |
3148 | return (zfs_standard_error_fmt(zhp->zfs_hdl, errno, |
3149 | dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), | |
3150 | zhp->zfs_name)); | |
3151 | } | |
3152 | ||
3153 | remove_mountpoint(zhp); | |
3154 | ||
3155 | return (0); | |
3156 | } | |
3157 | ||
3158 | struct destroydata { | |
330d06f9 MA |
3159 | nvlist_t *nvl; |
3160 | const char *snapname; | |
34dc7c2f BB |
3161 | }; |
3162 | ||
3163 | static int | |
428870ff | 3164 | zfs_check_snap_cb(zfs_handle_t *zhp, void *arg) |
34dc7c2f BB |
3165 | { |
3166 | struct destroydata *dd = arg; | |
34dc7c2f | 3167 | char name[ZFS_MAXNAMELEN]; |
428870ff | 3168 | int rv = 0; |
34dc7c2f | 3169 | |
330d06f9 MA |
3170 | (void) snprintf(name, sizeof (name), |
3171 | "%s@%s", zhp->zfs_name, dd->snapname); | |
34dc7c2f | 3172 | |
a08ee875 | 3173 | if (lzc_exists(name)) |
330d06f9 | 3174 | verify(nvlist_add_boolean(dd->nvl, name) == 0); |
d603ed6c | 3175 | |
330d06f9 MA |
3176 | rv = zfs_iter_filesystems(zhp, zfs_check_snap_cb, dd); |
3177 | zfs_close(zhp); | |
34dc7c2f BB |
3178 | return (rv); |
3179 | } | |
3180 | ||
3181 | /* | |
3182 | * Destroys all snapshots with the given name in zhp & descendants. | |
3183 | */ | |
3184 | int | |
45d1cae3 | 3185 | zfs_destroy_snaps(zfs_handle_t *zhp, char *snapname, boolean_t defer) |
34dc7c2f | 3186 | { |
34dc7c2f BB |
3187 | int ret; |
3188 | struct destroydata dd = { 0 }; | |
3189 | ||
3190 | dd.snapname = snapname; | |
330d06f9 MA |
3191 | verify(nvlist_alloc(&dd.nvl, NV_UNIQUE_NAME, 0) == 0); |
3192 | (void) zfs_check_snap_cb(zfs_handle_dup(zhp), &dd); | |
34dc7c2f | 3193 | |
a08ee875 | 3194 | if (nvlist_empty(dd.nvl)) { |
330d06f9 | 3195 | ret = zfs_standard_error_fmt(zhp->zfs_hdl, ENOENT, |
34dc7c2f | 3196 | dgettext(TEXT_DOMAIN, "cannot destroy '%s@%s'"), |
330d06f9 MA |
3197 | zhp->zfs_name, snapname); |
3198 | } else { | |
a08ee875 | 3199 | ret = zfs_destroy_snaps_nvl(zhp->zfs_hdl, dd.nvl, defer); |
34dc7c2f | 3200 | } |
330d06f9 MA |
3201 | nvlist_free(dd.nvl); |
3202 | return (ret); | |
3203 | } | |
3204 | ||
3205 | /* | |
a08ee875 | 3206 | * Destroys all the snapshots named in the nvlist. |
330d06f9 MA |
3207 | */ |
3208 | int | |
a08ee875 | 3209 | zfs_destroy_snaps_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, boolean_t defer) |
330d06f9 MA |
3210 | { |
3211 | int ret; | |
a08ee875 LG |
3212 | nvlist_t *errlist; |
3213 | nvpair_t *pair; | |
34dc7c2f | 3214 | |
a08ee875 | 3215 | ret = lzc_destroy_snaps(snaps, defer, &errlist); |
34dc7c2f | 3216 | |
a08ee875 LG |
3217 | if (ret == 0) |
3218 | return (0); | |
3219 | ||
3220 | if (nvlist_empty(errlist)) { | |
34dc7c2f | 3221 | char errbuf[1024]; |
a08ee875 LG |
3222 | (void) snprintf(errbuf, sizeof (errbuf), |
3223 | dgettext(TEXT_DOMAIN, "cannot destroy snapshots")); | |
34dc7c2f | 3224 | |
a08ee875 LG |
3225 | ret = zfs_standard_error(hdl, ret, errbuf); |
3226 | } | |
3227 | for (pair = nvlist_next_nvpair(errlist, NULL); | |
3228 | pair != NULL; pair = nvlist_next_nvpair(errlist, pair)) { | |
3229 | char errbuf[1024]; | |
3230 | (void) snprintf(errbuf, sizeof (errbuf), | |
3231 | dgettext(TEXT_DOMAIN, "cannot destroy snapshot %s"), | |
3232 | nvpair_name(pair)); | |
34dc7c2f | 3233 | |
a08ee875 | 3234 | switch (fnvpair_value_int32(pair)) { |
34dc7c2f | 3235 | case EEXIST: |
a08ee875 LG |
3236 | zfs_error_aux(hdl, |
3237 | dgettext(TEXT_DOMAIN, "snapshot is cloned")); | |
3238 | ret = zfs_error(hdl, EZFS_EXISTS, errbuf); | |
3239 | break; | |
34dc7c2f | 3240 | default: |
a08ee875 LG |
3241 | ret = zfs_standard_error(hdl, errno, errbuf); |
3242 | break; | |
34dc7c2f BB |
3243 | } |
3244 | } | |
3245 | ||
a08ee875 | 3246 | return (ret); |
34dc7c2f BB |
3247 | } |
3248 | ||
3249 | /* | |
3250 | * Clones the given dataset. The target must be of the same type as the source. | |
3251 | */ | |
3252 | int | |
3253 | zfs_clone(zfs_handle_t *zhp, const char *target, nvlist_t *props) | |
3254 | { | |
34dc7c2f BB |
3255 | char parent[ZFS_MAXNAMELEN]; |
3256 | int ret; | |
3257 | char errbuf[1024]; | |
3258 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
34dc7c2f BB |
3259 | uint64_t zoned; |
3260 | ||
3261 | assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); | |
3262 | ||
3263 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3264 | "cannot create '%s'"), target); | |
3265 | ||
330d06f9 | 3266 | /* validate the target/clone name */ |
34dc7c2f BB |
3267 | if (!zfs_validate_name(hdl, target, ZFS_TYPE_FILESYSTEM, B_TRUE)) |
3268 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
3269 | ||
3270 | /* validate parents exist */ | |
3271 | if (check_parents(hdl, target, &zoned, B_FALSE, NULL) != 0) | |
3272 | return (-1); | |
3273 | ||
3274 | (void) parent_name(target, parent, sizeof (parent)); | |
3275 | ||
3276 | /* do the clone */ | |
34dc7c2f BB |
3277 | |
3278 | if (props) { | |
a08ee875 LG |
3279 | zfs_type_t type; |
3280 | if (ZFS_IS_VOLUME(zhp)) { | |
3281 | type = ZFS_TYPE_VOLUME; | |
3282 | } else { | |
3283 | type = ZFS_TYPE_FILESYSTEM; | |
3284 | } | |
b128c09f BB |
3285 | if ((props = zfs_valid_proplist(hdl, type, props, zoned, |
3286 | zhp, errbuf)) == NULL) | |
34dc7c2f | 3287 | return (-1); |
34dc7c2f BB |
3288 | } |
3289 | ||
a08ee875 LG |
3290 | ret = lzc_clone(target, zhp->zfs_name, props); |
3291 | nvlist_free(props); | |
34dc7c2f BB |
3292 | |
3293 | if (ret != 0) { | |
3294 | switch (errno) { | |
3295 | ||
3296 | case ENOENT: | |
3297 | /* | |
3298 | * The parent doesn't exist. We should have caught this | |
3299 | * above, but there may a race condition that has since | |
3300 | * destroyed the parent. | |
3301 | * | |
3302 | * At this point, we don't know whether it's the source | |
3303 | * that doesn't exist anymore, or whether the target | |
3304 | * dataset doesn't exist. | |
3305 | */ | |
3306 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
3307 | "no such parent '%s'"), parent); | |
3308 | return (zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf)); | |
3309 | ||
3310 | case EXDEV: | |
3311 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
3312 | "source and target pools differ")); | |
3313 | return (zfs_error(zhp->zfs_hdl, EZFS_CROSSTARGET, | |
3314 | errbuf)); | |
3315 | ||
3316 | default: | |
3317 | return (zfs_standard_error(zhp->zfs_hdl, errno, | |
3318 | errbuf)); | |
3319 | } | |
34dc7c2f BB |
3320 | } |
3321 | ||
3322 | return (ret); | |
3323 | } | |
3324 | ||
34dc7c2f BB |
3325 | /* |
3326 | * Promotes the given clone fs to be the clone parent. | |
3327 | */ | |
3328 | int | |
3329 | zfs_promote(zfs_handle_t *zhp) | |
3330 | { | |
3331 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
a08ee875 | 3332 | zfs_cmd_t zc = {"\0"}; |
34dc7c2f | 3333 | char parent[MAXPATHLEN]; |
34dc7c2f | 3334 | int ret; |
34dc7c2f BB |
3335 | char errbuf[1024]; |
3336 | ||
3337 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3338 | "cannot promote '%s'"), zhp->zfs_name); | |
3339 | ||
3340 | if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { | |
3341 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3342 | "snapshots can not be promoted")); | |
3343 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
3344 | } | |
3345 | ||
3346 | (void) strlcpy(parent, zhp->zfs_dmustats.dds_origin, sizeof (parent)); | |
3347 | if (parent[0] == '\0') { | |
3348 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3349 | "not a cloned filesystem")); | |
3350 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
3351 | } | |
d603ed6c | 3352 | |
34dc7c2f BB |
3353 | (void) strlcpy(zc.zc_value, zhp->zfs_dmustats.dds_origin, |
3354 | sizeof (zc.zc_value)); | |
3355 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
3356 | ret = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc); | |
3357 | ||
3358 | if (ret != 0) { | |
3359 | int save_errno = errno; | |
3360 | ||
34dc7c2f BB |
3361 | switch (save_errno) { |
3362 | case EEXIST: | |
a08ee875 | 3363 | /* There is a conflicting snapshot name. */ |
34dc7c2f | 3364 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
428870ff BB |
3365 | "conflicting snapshot '%s' from parent '%s'"), |
3366 | zc.zc_string, parent); | |
34dc7c2f BB |
3367 | return (zfs_error(hdl, EZFS_EXISTS, errbuf)); |
3368 | ||
3369 | default: | |
3370 | return (zfs_standard_error(hdl, save_errno, errbuf)); | |
3371 | } | |
34dc7c2f | 3372 | } |
d603ed6c BB |
3373 | return (ret); |
3374 | } | |
3375 | ||
a08ee875 LG |
3376 | typedef struct snapdata { |
3377 | nvlist_t *sd_nvl; | |
3378 | const char *sd_snapname; | |
3379 | } snapdata_t; | |
d603ed6c BB |
3380 | |
3381 | static int | |
a08ee875 | 3382 | zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) |
d603ed6c | 3383 | { |
a08ee875 LG |
3384 | snapdata_t *sd = arg; |
3385 | char name[ZFS_MAXNAMELEN]; | |
3386 | int rv = 0; | |
d603ed6c | 3387 | |
a08ee875 LG |
3388 | if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) == 0) { |
3389 | (void) snprintf(name, sizeof (name), | |
3390 | "%s@%s", zfs_get_name(zhp), sd->sd_snapname); | |
d603ed6c | 3391 | |
a08ee875 | 3392 | fnvlist_add_boolean(sd->sd_nvl, name); |
d603ed6c | 3393 | |
a08ee875 LG |
3394 | rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); |
3395 | } | |
d603ed6c BB |
3396 | zfs_close(zhp); |
3397 | ||
a08ee875 | 3398 | return (rv); |
34dc7c2f BB |
3399 | } |
3400 | ||
3401 | /* | |
a08ee875 LG |
3402 | * Creates snapshots. The keys in the snaps nvlist are the snapshots to be |
3403 | * created. | |
34dc7c2f BB |
3404 | */ |
3405 | int | |
a08ee875 | 3406 | zfs_snapshot_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, nvlist_t *props) |
34dc7c2f | 3407 | { |
34dc7c2f BB |
3408 | int ret; |
3409 | char errbuf[1024]; | |
a08ee875 LG |
3410 | nvpair_t *elem; |
3411 | nvlist_t *errors; | |
34dc7c2f BB |
3412 | |
3413 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
a08ee875 | 3414 | "cannot create snapshots ")); |
34dc7c2f | 3415 | |
a08ee875 LG |
3416 | elem = NULL; |
3417 | while ((elem = nvlist_next_nvpair(snaps, elem)) != NULL) { | |
3418 | const char *snapname = nvpair_name(elem); | |
b128c09f | 3419 | |
a08ee875 LG |
3420 | /* validate the target name */ |
3421 | if (!zfs_validate_name(hdl, snapname, ZFS_TYPE_SNAPSHOT, | |
3422 | B_TRUE)) { | |
3423 | (void) snprintf(errbuf, sizeof (errbuf), | |
3424 | dgettext(TEXT_DOMAIN, | |
3425 | "cannot create snapshot '%s'"), snapname); | |
3426 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
b128c09f | 3427 | } |
a08ee875 | 3428 | } |
b128c09f | 3429 | |
a08ee875 LG |
3430 | if (props != NULL && |
3431 | (props = zfs_valid_proplist(hdl, ZFS_TYPE_SNAPSHOT, | |
3432 | props, B_FALSE, NULL, errbuf)) == NULL) { | |
3433 | return (-1); | |
b128c09f BB |
3434 | } |
3435 | ||
a08ee875 | 3436 | ret = lzc_snapshot(snaps, props, &errors); |
34dc7c2f | 3437 | |
a08ee875 LG |
3438 | if (ret != 0) { |
3439 | boolean_t printed = B_FALSE; | |
3440 | for (elem = nvlist_next_nvpair(errors, NULL); | |
3441 | elem != NULL; | |
3442 | elem = nvlist_next_nvpair(errors, elem)) { | |
3443 | (void) snprintf(errbuf, sizeof (errbuf), | |
3444 | dgettext(TEXT_DOMAIN, | |
3445 | "cannot create snapshot '%s'"), nvpair_name(elem)); | |
3446 | (void) zfs_standard_error(hdl, | |
3447 | fnvpair_value_int32(elem), errbuf); | |
3448 | printed = B_TRUE; | |
3449 | } | |
3450 | if (!printed) { | |
3451 | switch (ret) { | |
3452 | case EXDEV: | |
3453 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3454 | "multiple snapshots of same " | |
3455 | "fs not allowed")); | |
3456 | (void) zfs_error(hdl, EZFS_EXISTS, errbuf); | |
3457 | ||
3458 | break; | |
3459 | default: | |
3460 | (void) zfs_standard_error(hdl, ret, errbuf); | |
3461 | } | |
3462 | } | |
34dc7c2f BB |
3463 | } |
3464 | ||
a08ee875 LG |
3465 | nvlist_free(props); |
3466 | nvlist_free(errors); | |
3467 | return (ret); | |
3468 | } | |
34dc7c2f | 3469 | |
a08ee875 LG |
3470 | int |
3471 | zfs_snapshot(libzfs_handle_t *hdl, const char *path, boolean_t recursive, | |
3472 | nvlist_t *props) | |
3473 | { | |
3474 | int ret; | |
3475 | snapdata_t sd = { 0 }; | |
3476 | char fsname[ZFS_MAXNAMELEN]; | |
3477 | char *cp; | |
3478 | zfs_handle_t *zhp; | |
3479 | char errbuf[1024]; | |
b128c09f | 3480 | |
a08ee875 LG |
3481 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, |
3482 | "cannot snapshot %s"), path); | |
d603ed6c | 3483 | |
a08ee875 LG |
3484 | if (!zfs_validate_name(hdl, path, ZFS_TYPE_SNAPSHOT, B_TRUE)) |
3485 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
d603ed6c | 3486 | |
a08ee875 LG |
3487 | (void) strlcpy(fsname, path, sizeof (fsname)); |
3488 | cp = strchr(fsname, '@'); | |
3489 | *cp = '\0'; | |
3490 | sd.sd_snapname = cp + 1; | |
3491 | ||
3492 | if ((zhp = zfs_open(hdl, fsname, ZFS_TYPE_FILESYSTEM | | |
3493 | ZFS_TYPE_VOLUME)) == NULL) { | |
3494 | return (-1); | |
428870ff | 3495 | } |
34dc7c2f | 3496 | |
a08ee875 LG |
3497 | verify(nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) == 0); |
3498 | if (recursive) { | |
3499 | (void) zfs_snapshot_cb(zfs_handle_dup(zhp), &sd); | |
3500 | } else { | |
3501 | fnvlist_add_boolean(sd.sd_nvl, path); | |
3502 | } | |
d603ed6c | 3503 | |
a08ee875 LG |
3504 | ret = zfs_snapshot_nvl(hdl, sd.sd_nvl, props); |
3505 | nvlist_free(sd.sd_nvl); | |
34dc7c2f | 3506 | zfs_close(zhp); |
34dc7c2f BB |
3507 | return (ret); |
3508 | } | |
3509 | ||
3510 | /* | |
3511 | * Destroy any more recent snapshots. We invoke this callback on any dependents | |
3512 | * of the snapshot first. If the 'cb_dependent' member is non-zero, then this | |
3513 | * is a dependent and we should just destroy it without checking the transaction | |
3514 | * group. | |
3515 | */ | |
3516 | typedef struct rollback_data { | |
3517 | const char *cb_target; /* the snapshot */ | |
3518 | uint64_t cb_create; /* creation time reference */ | |
3519 | boolean_t cb_error; | |
3520 | boolean_t cb_dependent; | |
3521 | boolean_t cb_force; | |
3522 | } rollback_data_t; | |
3523 | ||
3524 | static int | |
3525 | rollback_destroy(zfs_handle_t *zhp, void *data) | |
3526 | { | |
3527 | rollback_data_t *cbp = data; | |
3528 | ||
3529 | if (!cbp->cb_dependent) { | |
3530 | if (strcmp(zhp->zfs_name, cbp->cb_target) != 0 && | |
3531 | zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT && | |
3532 | zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > | |
3533 | cbp->cb_create) { | |
34dc7c2f BB |
3534 | |
3535 | cbp->cb_dependent = B_TRUE; | |
3536 | cbp->cb_error |= zfs_iter_dependents(zhp, B_FALSE, | |
3537 | rollback_destroy, cbp); | |
3538 | cbp->cb_dependent = B_FALSE; | |
3539 | ||
45d1cae3 | 3540 | cbp->cb_error |= zfs_destroy(zhp, B_FALSE); |
34dc7c2f BB |
3541 | } |
3542 | } else { | |
3543 | /* We must destroy this clone; first unmount it */ | |
3544 | prop_changelist_t *clp; | |
3545 | ||
b128c09f | 3546 | clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, |
34dc7c2f BB |
3547 | cbp->cb_force ? MS_FORCE: 0); |
3548 | if (clp == NULL || changelist_prefix(clp) != 0) { | |
3549 | cbp->cb_error = B_TRUE; | |
3550 | zfs_close(zhp); | |
3551 | return (0); | |
3552 | } | |
45d1cae3 | 3553 | if (zfs_destroy(zhp, B_FALSE) != 0) |
34dc7c2f BB |
3554 | cbp->cb_error = B_TRUE; |
3555 | else | |
3556 | changelist_remove(clp, zhp->zfs_name); | |
3557 | (void) changelist_postfix(clp); | |
3558 | changelist_free(clp); | |
3559 | } | |
3560 | ||
3561 | zfs_close(zhp); | |
3562 | return (0); | |
3563 | } | |
3564 | ||
3565 | /* | |
3566 | * Given a dataset, rollback to a specific snapshot, discarding any | |
3567 | * data changes since then and making it the active dataset. | |
3568 | * | |
3569 | * Any snapshots more recent than the target are destroyed, along with | |
3570 | * their dependents. | |
3571 | */ | |
3572 | int | |
3573 | zfs_rollback(zfs_handle_t *zhp, zfs_handle_t *snap, boolean_t force) | |
3574 | { | |
3575 | rollback_data_t cb = { 0 }; | |
3576 | int err; | |
34dc7c2f | 3577 | boolean_t restore_resv = 0; |
d4ed6673 BB |
3578 | uint64_t old_volsize = 0, new_volsize; |
3579 | zfs_prop_t resv_prop = { 0 }; | |
34dc7c2f BB |
3580 | |
3581 | assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM || | |
3582 | zhp->zfs_type == ZFS_TYPE_VOLUME); | |
3583 | ||
3584 | /* | |
04434775 | 3585 | * Destroy all recent snapshots and their dependents. |
34dc7c2f BB |
3586 | */ |
3587 | cb.cb_force = force; | |
3588 | cb.cb_target = snap->zfs_name; | |
3589 | cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); | |
3590 | (void) zfs_iter_children(zhp, rollback_destroy, &cb); | |
3591 | ||
3592 | if (cb.cb_error) | |
3593 | return (-1); | |
3594 | ||
3595 | /* | |
3596 | * Now that we have verified that the snapshot is the latest, | |
3597 | * rollback to the given snapshot. | |
3598 | */ | |
3599 | ||
3600 | if (zhp->zfs_type == ZFS_TYPE_VOLUME) { | |
34dc7c2f BB |
3601 | if (zfs_which_resv_prop(zhp, &resv_prop) < 0) |
3602 | return (-1); | |
3603 | old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); | |
3604 | restore_resv = | |
3605 | (old_volsize == zfs_prop_get_int(zhp, resv_prop)); | |
3606 | } | |
3607 | ||
34dc7c2f BB |
3608 | /* |
3609 | * We rely on zfs_iter_children() to verify that there are no | |
3610 | * newer snapshots for the given dataset. Therefore, we can | |
3611 | * simply pass the name on to the ioctl() call. There is still | |
3612 | * an unlikely race condition where the user has taken a | |
3613 | * snapshot since we verified that this was the most recent. | |
34dc7c2f | 3614 | */ |
a08ee875 LG |
3615 | err = lzc_rollback(zhp->zfs_name, NULL, 0); |
3616 | if (err != 0) { | |
34dc7c2f BB |
3617 | (void) zfs_standard_error_fmt(zhp->zfs_hdl, errno, |
3618 | dgettext(TEXT_DOMAIN, "cannot rollback '%s'"), | |
3619 | zhp->zfs_name); | |
3620 | return (err); | |
3621 | } | |
3622 | ||
3623 | /* | |
3624 | * For volumes, if the pre-rollback volsize matched the pre- | |
3625 | * rollback reservation and the volsize has changed then set | |
3626 | * the reservation property to the post-rollback volsize. | |
3627 | * Make a new handle since the rollback closed the dataset. | |
3628 | */ | |
3629 | if ((zhp->zfs_type == ZFS_TYPE_VOLUME) && | |
3630 | (zhp = make_dataset_handle(zhp->zfs_hdl, zhp->zfs_name))) { | |
34dc7c2f BB |
3631 | if (restore_resv) { |
3632 | new_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); | |
3633 | if (old_volsize != new_volsize) | |
3634 | err = zfs_prop_set_int(zhp, resv_prop, | |
3635 | new_volsize); | |
3636 | } | |
3637 | zfs_close(zhp); | |
3638 | } | |
3639 | return (err); | |
3640 | } | |
3641 | ||
34dc7c2f BB |
3642 | /* |
3643 | * Renames the given dataset. | |
3644 | */ | |
3645 | int | |
db49968e ES |
3646 | zfs_rename(zfs_handle_t *zhp, const char *target, boolean_t recursive, |
3647 | boolean_t force_unmount) | |
34dc7c2f BB |
3648 | { |
3649 | int ret; | |
a08ee875 | 3650 | zfs_cmd_t zc = {"\0"}; |
34dc7c2f BB |
3651 | char *delim; |
3652 | prop_changelist_t *cl = NULL; | |
3653 | zfs_handle_t *zhrp = NULL; | |
3654 | char *parentname = NULL; | |
3655 | char parent[ZFS_MAXNAMELEN]; | |
3656 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
3657 | char errbuf[1024]; | |
3658 | ||
3659 | /* if we have the same exact name, just return success */ | |
3660 | if (strcmp(zhp->zfs_name, target) == 0) | |
3661 | return (0); | |
3662 | ||
3663 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3664 | "cannot rename to '%s'"), target); | |
3665 | ||
3666 | /* | |
3667 | * Make sure the target name is valid | |
3668 | */ | |
3669 | if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { | |
3670 | if ((strchr(target, '@') == NULL) || | |
3671 | *target == '@') { | |
3672 | /* | |
3673 | * Snapshot target name is abbreviated, | |
3674 | * reconstruct full dataset name | |
3675 | */ | |
3676 | (void) strlcpy(parent, zhp->zfs_name, | |
3677 | sizeof (parent)); | |
3678 | delim = strchr(parent, '@'); | |
3679 | if (strchr(target, '@') == NULL) | |
3680 | *(++delim) = '\0'; | |
3681 | else | |
3682 | *delim = '\0'; | |
3683 | (void) strlcat(parent, target, sizeof (parent)); | |
3684 | target = parent; | |
3685 | } else { | |
3686 | /* | |
3687 | * Make sure we're renaming within the same dataset. | |
3688 | */ | |
3689 | delim = strchr(target, '@'); | |
3690 | if (strncmp(zhp->zfs_name, target, delim - target) | |
3691 | != 0 || zhp->zfs_name[delim - target] != '@') { | |
3692 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3693 | "snapshots must be part of same " | |
3694 | "dataset")); | |
3695 | return (zfs_error(hdl, EZFS_CROSSTARGET, | |
3696 | errbuf)); | |
3697 | } | |
3698 | } | |
3699 | if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) | |
3700 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
3701 | } else { | |
3702 | if (recursive) { | |
3703 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3704 | "recursive rename must be a snapshot")); | |
3705 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
3706 | } | |
3707 | ||
3708 | if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) | |
3709 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
34dc7c2f BB |
3710 | |
3711 | /* validate parents */ | |
428870ff | 3712 | if (check_parents(hdl, target, NULL, B_FALSE, NULL) != 0) |
34dc7c2f BB |
3713 | return (-1); |
3714 | ||
34dc7c2f BB |
3715 | /* make sure we're in the same pool */ |
3716 | verify((delim = strchr(target, '/')) != NULL); | |
3717 | if (strncmp(zhp->zfs_name, target, delim - target) != 0 || | |
3718 | zhp->zfs_name[delim - target] != '/') { | |
3719 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3720 | "datasets must be within same pool")); | |
3721 | return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); | |
3722 | } | |
3723 | ||
3724 | /* new name cannot be a child of the current dataset name */ | |
428870ff | 3725 | if (is_descendant(zhp->zfs_name, target)) { |
34dc7c2f | 3726 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
428870ff | 3727 | "New dataset name cannot be a descendant of " |
34dc7c2f BB |
3728 | "current dataset name")); |
3729 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
3730 | } | |
3731 | } | |
3732 | ||
3733 | (void) snprintf(errbuf, sizeof (errbuf), | |
3734 | dgettext(TEXT_DOMAIN, "cannot rename '%s'"), zhp->zfs_name); | |
3735 | ||
3736 | if (getzoneid() == GLOBAL_ZONEID && | |
3737 | zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { | |
3738 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3739 | "dataset is used in a non-global zone")); | |
3740 | return (zfs_error(hdl, EZFS_ZONED, errbuf)); | |
3741 | } | |
3742 | ||
3743 | if (recursive) { | |
34dc7c2f BB |
3744 | |
3745 | parentname = zfs_strdup(zhp->zfs_hdl, zhp->zfs_name); | |
3746 | if (parentname == NULL) { | |
3747 | ret = -1; | |
3748 | goto error; | |
3749 | } | |
3750 | delim = strchr(parentname, '@'); | |
3751 | *delim = '\0'; | |
3752 | zhrp = zfs_open(zhp->zfs_hdl, parentname, ZFS_TYPE_DATASET); | |
3753 | if (zhrp == NULL) { | |
3754 | ret = -1; | |
3755 | goto error; | |
3756 | } | |
3757 | ||
34dc7c2f | 3758 | } else { |
db49968e ES |
3759 | if ((cl = changelist_gather(zhp, ZFS_PROP_NAME, 0, |
3760 | force_unmount ? MS_FORCE : 0)) == NULL) | |
34dc7c2f BB |
3761 | return (-1); |
3762 | ||
3763 | if (changelist_haszonedchild(cl)) { | |
3764 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3765 | "child dataset with inherited mountpoint is used " | |
3766 | "in a non-global zone")); | |
3767 | (void) zfs_error(hdl, EZFS_ZONED, errbuf); | |
d4ed6673 | 3768 | ret = -1; |
34dc7c2f BB |
3769 | goto error; |
3770 | } | |
3771 | ||
3772 | if ((ret = changelist_prefix(cl)) != 0) | |
3773 | goto error; | |
3774 | } | |
3775 | ||
3776 | if (ZFS_IS_VOLUME(zhp)) | |
3777 | zc.zc_objset_type = DMU_OST_ZVOL; | |
3778 | else | |
3779 | zc.zc_objset_type = DMU_OST_ZFS; | |
3780 | ||
3781 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
3782 | (void) strlcpy(zc.zc_value, target, sizeof (zc.zc_value)); | |
3783 | ||
3784 | zc.zc_cookie = recursive; | |
3785 | ||
3786 | if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_RENAME, &zc)) != 0) { | |
3787 | /* | |
3788 | * if it was recursive, the one that actually failed will | |
3789 | * be in zc.zc_name | |
3790 | */ | |
3791 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3792 | "cannot rename '%s'"), zc.zc_name); | |
3793 | ||
3794 | if (recursive && errno == EEXIST) { | |
3795 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3796 | "a child dataset already has a snapshot " | |
3797 | "with the new name")); | |
3798 | (void) zfs_error(hdl, EZFS_EXISTS, errbuf); | |
3799 | } else { | |
3800 | (void) zfs_standard_error(zhp->zfs_hdl, errno, errbuf); | |
3801 | } | |
3802 | ||
3803 | /* | |
3804 | * On failure, we still want to remount any filesystems that | |
3805 | * were previously mounted, so we don't alter the system state. | |
3806 | */ | |
a08ee875 | 3807 | if (!recursive) |
34dc7c2f | 3808 | (void) changelist_postfix(cl); |
34dc7c2f | 3809 | } else { |
a08ee875 | 3810 | if (!recursive) { |
34dc7c2f BB |
3811 | changelist_rename(cl, zfs_get_name(zhp), target); |
3812 | ret = changelist_postfix(cl); | |
3813 | } | |
3814 | } | |
3815 | ||
3816 | error: | |
3817 | if (parentname) { | |
3818 | free(parentname); | |
3819 | } | |
3820 | if (zhrp) { | |
3821 | zfs_close(zhrp); | |
3822 | } | |
3823 | if (cl) { | |
3824 | changelist_free(cl); | |
3825 | } | |
3826 | return (ret); | |
3827 | } | |
3828 | ||
34dc7c2f | 3829 | nvlist_t * |
d603ed6c | 3830 | zfs_get_user_props(zfs_handle_t *zhp) |
34dc7c2f | 3831 | { |
d603ed6c | 3832 | return (zhp->zfs_user_props); |
34dc7c2f BB |
3833 | } |
3834 | ||
3835 | /* | |
3836 | * This function is used by 'zfs list' to determine the exact set of columns to | |
3837 | * display, and their maximum widths. This does two main things: | |
3838 | * | |
3839 | * - If this is a list of all properties, then expand the list to include | |
3840 | * all native properties, and set a flag so that for each dataset we look | |
3841 | * for new unique user properties and add them to the list. | |
3842 | * | |
3843 | * - For non fixed-width properties, keep track of the maximum width seen | |
428870ff BB |
3844 | * so that we can size the column appropriately. If the user has |
3845 | * requested received property values, we also need to compute the width | |
3846 | * of the RECEIVED column. | |
34dc7c2f BB |
3847 | */ |
3848 | int | |
a08ee875 LG |
3849 | zfs_expand_proplist(zfs_handle_t *zhp, zprop_list_t **plp, boolean_t received, |
3850 | boolean_t literal) | |
34dc7c2f BB |
3851 | { |
3852 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
3853 | zprop_list_t *entry; | |
3854 | zprop_list_t **last, **start; | |
3855 | nvlist_t *userprops, *propval; | |
3856 | nvpair_t *elem; | |
3857 | char *strval; | |
3858 | char buf[ZFS_MAXPROPLEN]; | |
3859 | ||
3860 | if (zprop_expand_list(hdl, plp, ZFS_TYPE_DATASET) != 0) | |
3861 | return (-1); | |
3862 | ||
3863 | userprops = zfs_get_user_props(zhp); | |
3864 | ||
3865 | entry = *plp; | |
3866 | if (entry->pl_all && nvlist_next_nvpair(userprops, NULL) != NULL) { | |
3867 | /* | |
3868 | * Go through and add any user properties as necessary. We | |
3869 | * start by incrementing our list pointer to the first | |
3870 | * non-native property. | |
3871 | */ | |
3872 | start = plp; | |
3873 | while (*start != NULL) { | |
3874 | if ((*start)->pl_prop == ZPROP_INVAL) | |
3875 | break; | |
3876 | start = &(*start)->pl_next; | |
3877 | } | |
3878 | ||
3879 | elem = NULL; | |
3880 | while ((elem = nvlist_next_nvpair(userprops, elem)) != NULL) { | |
3881 | /* | |
3882 | * See if we've already found this property in our list. | |
3883 | */ | |
3884 | for (last = start; *last != NULL; | |
3885 | last = &(*last)->pl_next) { | |
3886 | if (strcmp((*last)->pl_user_prop, | |
3887 | nvpair_name(elem)) == 0) | |
3888 | break; | |
3889 | } | |
3890 | ||
3891 | if (*last == NULL) { | |
3892 | if ((entry = zfs_alloc(hdl, | |
3893 | sizeof (zprop_list_t))) == NULL || | |
3894 | ((entry->pl_user_prop = zfs_strdup(hdl, | |
3895 | nvpair_name(elem)))) == NULL) { | |
3896 | free(entry); | |
3897 | return (-1); | |
3898 | } | |
3899 | ||
3900 | entry->pl_prop = ZPROP_INVAL; | |
3901 | entry->pl_width = strlen(nvpair_name(elem)); | |
3902 | entry->pl_all = B_TRUE; | |
3903 | *last = entry; | |
3904 | } | |
3905 | } | |
3906 | } | |
3907 | ||
3908 | /* | |
3909 | * Now go through and check the width of any non-fixed columns | |
3910 | */ | |
3911 | for (entry = *plp; entry != NULL; entry = entry->pl_next) { | |
a08ee875 | 3912 | if (entry->pl_fixed && !literal) |
34dc7c2f BB |
3913 | continue; |
3914 | ||
3915 | if (entry->pl_prop != ZPROP_INVAL) { | |
3916 | if (zfs_prop_get(zhp, entry->pl_prop, | |
a08ee875 | 3917 | buf, sizeof (buf), NULL, NULL, 0, literal) == 0) { |
34dc7c2f BB |
3918 | if (strlen(buf) > entry->pl_width) |
3919 | entry->pl_width = strlen(buf); | |
3920 | } | |
428870ff BB |
3921 | if (received && zfs_prop_get_recvd(zhp, |
3922 | zfs_prop_to_name(entry->pl_prop), | |
a08ee875 | 3923 | buf, sizeof (buf), literal) == 0) |
428870ff BB |
3924 | if (strlen(buf) > entry->pl_recvd_width) |
3925 | entry->pl_recvd_width = strlen(buf); | |
3926 | } else { | |
3927 | if (nvlist_lookup_nvlist(userprops, entry->pl_user_prop, | |
3928 | &propval) == 0) { | |
3929 | verify(nvlist_lookup_string(propval, | |
3930 | ZPROP_VALUE, &strval) == 0); | |
3931 | if (strlen(strval) > entry->pl_width) | |
3932 | entry->pl_width = strlen(strval); | |
3933 | } | |
3934 | if (received && zfs_prop_get_recvd(zhp, | |
3935 | entry->pl_user_prop, | |
a08ee875 | 3936 | buf, sizeof (buf), literal) == 0) |
428870ff BB |
3937 | if (strlen(buf) > entry->pl_recvd_width) |
3938 | entry->pl_recvd_width = strlen(buf); | |
34dc7c2f BB |
3939 | } |
3940 | } | |
3941 | ||
3942 | return (0); | |
3943 | } | |
3944 | ||
9babb374 BB |
3945 | void |
3946 | zfs_prune_proplist(zfs_handle_t *zhp, uint8_t *props) | |
3947 | { | |
3948 | nvpair_t *curr; | |
3949 | ||
3950 | /* | |
3951 | * Keep a reference to the props-table against which we prune the | |
3952 | * properties. | |
3953 | */ | |
3954 | zhp->zfs_props_table = props; | |
3955 | ||
3956 | curr = nvlist_next_nvpair(zhp->zfs_props, NULL); | |
3957 | ||
3958 | while (curr) { | |
3959 | zfs_prop_t zfs_prop = zfs_name_to_prop(nvpair_name(curr)); | |
3960 | nvpair_t *next = nvlist_next_nvpair(zhp->zfs_props, curr); | |
3961 | ||
3962 | /* | |
428870ff BB |
3963 | * User properties will result in ZPROP_INVAL, and since we |
3964 | * only know how to prune standard ZFS properties, we always | |
3965 | * leave these in the list. This can also happen if we | |
3966 | * encounter an unknown DSL property (when running older | |
3967 | * software, for example). | |
9babb374 BB |
3968 | */ |
3969 | if (zfs_prop != ZPROP_INVAL && props[zfs_prop] == B_FALSE) | |
3970 | (void) nvlist_remove(zhp->zfs_props, | |
3971 | nvpair_name(curr), nvpair_type(curr)); | |
3972 | curr = next; | |
3973 | } | |
3974 | } | |
3975 | ||
3976 | static int | |
3977 | zfs_smb_acl_mgmt(libzfs_handle_t *hdl, char *dataset, char *path, | |
3978 | zfs_smb_acl_op_t cmd, char *resource1, char *resource2) | |
3979 | { | |
a08ee875 | 3980 | zfs_cmd_t zc = {"\0"}; |
9babb374 BB |
3981 | nvlist_t *nvlist = NULL; |
3982 | int error; | |
3983 | ||
3984 | (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); | |
3985 | (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); | |
3986 | zc.zc_cookie = (uint64_t)cmd; | |
3987 | ||
3988 | if (cmd == ZFS_SMB_ACL_RENAME) { | |
3989 | if (nvlist_alloc(&nvlist, NV_UNIQUE_NAME, 0) != 0) { | |
3990 | (void) no_memory(hdl); | |
a6098088 | 3991 | return (-1); |
9babb374 BB |
3992 | } |
3993 | } | |
3994 | ||
3995 | switch (cmd) { | |
3996 | case ZFS_SMB_ACL_ADD: | |
3997 | case ZFS_SMB_ACL_REMOVE: | |
3998 | (void) strlcpy(zc.zc_string, resource1, sizeof (zc.zc_string)); | |
3999 | break; | |
4000 | case ZFS_SMB_ACL_RENAME: | |
4001 | if (nvlist_add_string(nvlist, ZFS_SMB_ACL_SRC, | |
4002 | resource1) != 0) { | |
4003 | (void) no_memory(hdl); | |
4004 | return (-1); | |
4005 | } | |
4006 | if (nvlist_add_string(nvlist, ZFS_SMB_ACL_TARGET, | |
4007 | resource2) != 0) { | |
4008 | (void) no_memory(hdl); | |
4009 | return (-1); | |
4010 | } | |
4011 | if (zcmd_write_src_nvlist(hdl, &zc, nvlist) != 0) { | |
4012 | nvlist_free(nvlist); | |
4013 | return (-1); | |
4014 | } | |
4015 | break; | |
4016 | case ZFS_SMB_ACL_PURGE: | |
4017 | break; | |
4018 | default: | |
4019 | return (-1); | |
4020 | } | |
4021 | error = ioctl(hdl->libzfs_fd, ZFS_IOC_SMB_ACL, &zc); | |
4022 | if (nvlist) | |
4023 | nvlist_free(nvlist); | |
4024 | return (error); | |
4025 | } | |
4026 | ||
4027 | int | |
4028 | zfs_smb_acl_add(libzfs_handle_t *hdl, char *dataset, | |
4029 | char *path, char *resource) | |
4030 | { | |
4031 | return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_ADD, | |
4032 | resource, NULL)); | |
4033 | } | |
4034 | ||
4035 | int | |
4036 | zfs_smb_acl_remove(libzfs_handle_t *hdl, char *dataset, | |
4037 | char *path, char *resource) | |
4038 | { | |
4039 | return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_REMOVE, | |
4040 | resource, NULL)); | |
4041 | } | |
4042 | ||
4043 | int | |
4044 | zfs_smb_acl_purge(libzfs_handle_t *hdl, char *dataset, char *path) | |
4045 | { | |
4046 | return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_PURGE, | |
4047 | NULL, NULL)); | |
4048 | } | |
4049 | ||
4050 | int | |
4051 | zfs_smb_acl_rename(libzfs_handle_t *hdl, char *dataset, char *path, | |
4052 | char *oldname, char *newname) | |
4053 | { | |
4054 | return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_RENAME, | |
4055 | oldname, newname)); | |
4056 | } | |
4057 | ||
4058 | int | |
4059 | zfs_userspace(zfs_handle_t *zhp, zfs_userquota_prop_t type, | |
4060 | zfs_userspace_cb_t func, void *arg) | |
4061 | { | |
a08ee875 | 4062 | zfs_cmd_t zc = {"\0"}; |
9babb374 | 4063 | zfs_useracct_t buf[100]; |
c06d4368 AX |
4064 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
4065 | int ret; | |
9babb374 | 4066 | |
330d06f9 | 4067 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); |
9babb374 BB |
4068 | |
4069 | zc.zc_objset_type = type; | |
4070 | zc.zc_nvlist_dst = (uintptr_t)buf; | |
4071 | ||
c06d4368 | 4072 | for (;;) { |
9babb374 BB |
4073 | zfs_useracct_t *zua = buf; |
4074 | ||
4075 | zc.zc_nvlist_dst_size = sizeof (buf); | |
c06d4368 AX |
4076 | if (zfs_ioctl(hdl, ZFS_IOC_USERSPACE_MANY, &zc) != 0) { |
4077 | char errbuf[ZFS_MAXNAMELEN + 32]; | |
4078 | ||
4079 | (void) snprintf(errbuf, sizeof (errbuf), | |
4080 | dgettext(TEXT_DOMAIN, | |
4081 | "cannot get used/quota for %s"), zc.zc_name); | |
4082 | return (zfs_standard_error_fmt(hdl, errno, errbuf)); | |
4083 | } | |
4084 | if (zc.zc_nvlist_dst_size == 0) | |
9babb374 BB |
4085 | break; |
4086 | ||
4087 | while (zc.zc_nvlist_dst_size > 0) { | |
c06d4368 AX |
4088 | if ((ret = func(arg, zua->zu_domain, zua->zu_rid, |
4089 | zua->zu_space)) != 0) | |
4090 | return (ret); | |
9babb374 BB |
4091 | zua++; |
4092 | zc.zc_nvlist_dst_size -= sizeof (zfs_useracct_t); | |
4093 | } | |
4094 | } | |
4095 | ||
c06d4368 | 4096 | return (0); |
9babb374 | 4097 | } |
45d1cae3 | 4098 | |
a08ee875 LG |
4099 | struct holdarg { |
4100 | nvlist_t *nvl; | |
4101 | const char *snapname; | |
4102 | const char *tag; | |
4103 | boolean_t recursive; | |
4104 | int error; | |
4105 | }; | |
4106 | ||
4107 | static int | |
4108 | zfs_hold_one(zfs_handle_t *zhp, void *arg) | |
4109 | { | |
4110 | struct holdarg *ha = arg; | |
4111 | char name[ZFS_MAXNAMELEN]; | |
4112 | int rv = 0; | |
4113 | ||
4114 | (void) snprintf(name, sizeof (name), | |
4115 | "%s@%s", zhp->zfs_name, ha->snapname); | |
4116 | ||
4117 | if (lzc_exists(name)) | |
4118 | fnvlist_add_string(ha->nvl, name, ha->tag); | |
4119 | ||
4120 | if (ha->recursive) | |
4121 | rv = zfs_iter_filesystems(zhp, zfs_hold_one, ha); | |
4122 | zfs_close(zhp); | |
4123 | return (rv); | |
4124 | } | |
4125 | ||
45d1cae3 BB |
4126 | int |
4127 | zfs_hold(zfs_handle_t *zhp, const char *snapname, const char *tag, | |
a08ee875 LG |
4128 | boolean_t recursive, int cleanup_fd) |
4129 | { | |
4130 | int ret; | |
4131 | struct holdarg ha; | |
4132 | ||
4133 | ha.nvl = fnvlist_alloc(); | |
4134 | ha.snapname = snapname; | |
4135 | ha.tag = tag; | |
4136 | ha.recursive = recursive; | |
4137 | (void) zfs_hold_one(zfs_handle_dup(zhp), &ha); | |
4138 | ||
4139 | if (nvlist_empty(ha.nvl)) { | |
4140 | char errbuf[1024]; | |
4141 | ||
4142 | fnvlist_free(ha.nvl); | |
4143 | ret = ENOENT; | |
4144 | (void) snprintf(errbuf, sizeof (errbuf), | |
4145 | dgettext(TEXT_DOMAIN, | |
4146 | "cannot hold snapshot '%s@%s'"), | |
4147 | zhp->zfs_name, snapname); | |
4148 | (void) zfs_standard_error(zhp->zfs_hdl, ret, errbuf); | |
4149 | return (ret); | |
4150 | } | |
4151 | ||
4152 | ret = zfs_hold_nvl(zhp, cleanup_fd, ha.nvl); | |
4153 | fnvlist_free(ha.nvl); | |
4154 | ||
4155 | return (ret); | |
4156 | } | |
4157 | ||
4158 | int | |
4159 | zfs_hold_nvl(zfs_handle_t *zhp, int cleanup_fd, nvlist_t *holds) | |
45d1cae3 | 4160 | { |
a08ee875 LG |
4161 | int ret; |
4162 | nvlist_t *errors; | |
45d1cae3 | 4163 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
a08ee875 LG |
4164 | char errbuf[1024]; |
4165 | nvpair_t *elem; | |
45d1cae3 | 4166 | |
a08ee875 LG |
4167 | errors = NULL; |
4168 | ret = lzc_hold(holds, cleanup_fd, &errors); | |
572e2857 | 4169 | |
a08ee875 LG |
4170 | if (ret == 0) { |
4171 | /* There may be errors even in the success case. */ | |
4172 | fnvlist_free(errors); | |
4173 | return (0); | |
4174 | } | |
45d1cae3 | 4175 | |
a08ee875 LG |
4176 | if (nvlist_empty(errors)) { |
4177 | /* no hold-specific errors */ | |
4178 | (void) snprintf(errbuf, sizeof (errbuf), | |
4179 | dgettext(TEXT_DOMAIN, "cannot hold")); | |
4180 | switch (ret) { | |
4181 | case ENOTSUP: | |
4182 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4183 | "pool must be upgraded")); | |
4184 | (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); | |
4185 | break; | |
4186 | case EINVAL: | |
4187 | (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); | |
4188 | break; | |
4189 | default: | |
4190 | (void) zfs_standard_error(hdl, ret, errbuf); | |
4191 | } | |
4192 | } | |
45d1cae3 | 4193 | |
a08ee875 LG |
4194 | for (elem = nvlist_next_nvpair(errors, NULL); |
4195 | elem != NULL; | |
4196 | elem = nvlist_next_nvpair(errors, elem)) { | |
4197 | (void) snprintf(errbuf, sizeof (errbuf), | |
4198 | dgettext(TEXT_DOMAIN, | |
4199 | "cannot hold snapshot '%s'"), nvpair_name(elem)); | |
4200 | switch (fnvpair_value_int32(elem)) { | |
428870ff BB |
4201 | case E2BIG: |
4202 | /* | |
4203 | * Temporary tags wind up having the ds object id | |
4204 | * prepended. So even if we passed the length check | |
4205 | * above, it's still possible for the tag to wind | |
4206 | * up being slightly too long. | |
4207 | */ | |
a08ee875 LG |
4208 | (void) zfs_error(hdl, EZFS_TAGTOOLONG, errbuf); |
4209 | break; | |
45d1cae3 | 4210 | case EINVAL: |
a08ee875 LG |
4211 | (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); |
4212 | break; | |
45d1cae3 | 4213 | case EEXIST: |
a08ee875 LG |
4214 | (void) zfs_error(hdl, EZFS_REFTAG_HOLD, errbuf); |
4215 | break; | |
45d1cae3 | 4216 | default: |
a08ee875 LG |
4217 | (void) zfs_standard_error(hdl, |
4218 | fnvpair_value_int32(elem), errbuf); | |
45d1cae3 BB |
4219 | } |
4220 | } | |
4221 | ||
a08ee875 LG |
4222 | fnvlist_free(errors); |
4223 | return (ret); | |
4224 | } | |
4225 | ||
4226 | static int | |
4227 | zfs_release_one(zfs_handle_t *zhp, void *arg) | |
4228 | { | |
4229 | struct holdarg *ha = arg; | |
4230 | char name[ZFS_MAXNAMELEN]; | |
4231 | int rv = 0; | |
4232 | nvlist_t *existing_holds; | |
4233 | ||
4234 | (void) snprintf(name, sizeof (name), | |
4235 | "%s@%s", zhp->zfs_name, ha->snapname); | |
4236 | ||
4237 | if (lzc_get_holds(name, &existing_holds) != 0) { | |
4238 | ha->error = ENOENT; | |
4239 | } else if (!nvlist_exists(existing_holds, ha->tag)) { | |
4240 | ha->error = ESRCH; | |
4241 | } else { | |
4242 | nvlist_t *torelease = fnvlist_alloc(); | |
4243 | fnvlist_add_boolean(torelease, ha->tag); | |
4244 | fnvlist_add_nvlist(ha->nvl, name, torelease); | |
4245 | fnvlist_free(torelease); | |
4246 | } | |
4247 | ||
4248 | if (ha->recursive) | |
4249 | rv = zfs_iter_filesystems(zhp, zfs_release_one, ha); | |
4250 | zfs_close(zhp); | |
4251 | return (rv); | |
45d1cae3 BB |
4252 | } |
4253 | ||
4254 | int | |
4255 | zfs_release(zfs_handle_t *zhp, const char *snapname, const char *tag, | |
4256 | boolean_t recursive) | |
4257 | { | |
a08ee875 LG |
4258 | int ret; |
4259 | struct holdarg ha; | |
4260 | nvlist_t *errors = NULL; | |
4261 | nvpair_t *elem; | |
45d1cae3 | 4262 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
a08ee875 | 4263 | char errbuf[1024]; |
45d1cae3 | 4264 | |
a08ee875 LG |
4265 | ha.nvl = fnvlist_alloc(); |
4266 | ha.snapname = snapname; | |
4267 | ha.tag = tag; | |
4268 | ha.recursive = recursive; | |
4269 | ha.error = 0; | |
4270 | (void) zfs_release_one(zfs_handle_dup(zhp), &ha); | |
4271 | ||
4272 | if (nvlist_empty(ha.nvl)) { | |
4273 | fnvlist_free(ha.nvl); | |
4274 | ret = ha.error; | |
4275 | (void) snprintf(errbuf, sizeof (errbuf), | |
4276 | dgettext(TEXT_DOMAIN, | |
4277 | "cannot release hold from snapshot '%s@%s'"), | |
4278 | zhp->zfs_name, snapname); | |
4279 | if (ret == ESRCH) { | |
4280 | (void) zfs_error(hdl, EZFS_REFTAG_RELE, errbuf); | |
4281 | } else { | |
4282 | (void) zfs_standard_error(hdl, ret, errbuf); | |
4283 | } | |
4284 | return (ret); | |
4285 | } | |
45d1cae3 | 4286 | |
a08ee875 LG |
4287 | ret = lzc_release(ha.nvl, &errors); |
4288 | fnvlist_free(ha.nvl); | |
45d1cae3 | 4289 | |
a08ee875 LG |
4290 | if (ret == 0) { |
4291 | /* There may be errors even in the success case. */ | |
4292 | fnvlist_free(errors); | |
4293 | return (0); | |
4294 | } | |
4295 | ||
4296 | if (nvlist_empty(errors)) { | |
4297 | /* no hold-specific errors */ | |
45d1cae3 | 4298 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, |
a08ee875 | 4299 | "cannot release")); |
45d1cae3 | 4300 | switch (errno) { |
45d1cae3 BB |
4301 | case ENOTSUP: |
4302 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4303 | "pool must be upgraded")); | |
a08ee875 LG |
4304 | (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); |
4305 | break; | |
4306 | default: | |
4307 | (void) zfs_standard_error_fmt(hdl, errno, errbuf); | |
4308 | } | |
4309 | } | |
4310 | ||
4311 | for (elem = nvlist_next_nvpair(errors, NULL); | |
4312 | elem != NULL; | |
4313 | elem = nvlist_next_nvpair(errors, elem)) { | |
4314 | (void) snprintf(errbuf, sizeof (errbuf), | |
4315 | dgettext(TEXT_DOMAIN, | |
4316 | "cannot release hold from snapshot '%s'"), | |
4317 | nvpair_name(elem)); | |
4318 | switch (fnvpair_value_int32(elem)) { | |
4319 | case ESRCH: | |
4320 | (void) zfs_error(hdl, EZFS_REFTAG_RELE, errbuf); | |
4321 | break; | |
45d1cae3 | 4322 | case EINVAL: |
a08ee875 LG |
4323 | (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); |
4324 | break; | |
45d1cae3 | 4325 | default: |
a08ee875 LG |
4326 | (void) zfs_standard_error_fmt(hdl, |
4327 | fnvpair_value_int32(elem), errbuf); | |
45d1cae3 BB |
4328 | } |
4329 | } | |
4330 | ||
a08ee875 LG |
4331 | fnvlist_free(errors); |
4332 | return (ret); | |
45d1cae3 | 4333 | } |
428870ff | 4334 | |
0b7936d5 AS |
4335 | int |
4336 | zfs_get_fsacl(zfs_handle_t *zhp, nvlist_t **nvl) | |
4337 | { | |
a08ee875 | 4338 | zfs_cmd_t zc = {"\0"}; |
0b7936d5 AS |
4339 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
4340 | int nvsz = 2048; | |
4341 | void *nvbuf; | |
4342 | int err = 0; | |
a08ee875 | 4343 | char errbuf[1024]; |
0b7936d5 AS |
4344 | |
4345 | assert(zhp->zfs_type == ZFS_TYPE_VOLUME || | |
4346 | zhp->zfs_type == ZFS_TYPE_FILESYSTEM); | |
4347 | ||
4348 | tryagain: | |
4349 | ||
4350 | nvbuf = malloc(nvsz); | |
4351 | if (nvbuf == NULL) { | |
4352 | err = (zfs_error(hdl, EZFS_NOMEM, strerror(errno))); | |
4353 | goto out; | |
4354 | } | |
4355 | ||
4356 | zc.zc_nvlist_dst_size = nvsz; | |
4357 | zc.zc_nvlist_dst = (uintptr_t)nvbuf; | |
4358 | ||
4359 | (void) strlcpy(zc.zc_name, zhp->zfs_name, ZFS_MAXNAMELEN); | |
4360 | ||
c7f2d69d | 4361 | if (ioctl(hdl->libzfs_fd, ZFS_IOC_GET_FSACL, &zc) != 0) { |
0b7936d5 AS |
4362 | (void) snprintf(errbuf, sizeof (errbuf), |
4363 | dgettext(TEXT_DOMAIN, "cannot get permissions on '%s'"), | |
4364 | zc.zc_name); | |
4365 | switch (errno) { | |
4366 | case ENOMEM: | |
4367 | free(nvbuf); | |
4368 | nvsz = zc.zc_nvlist_dst_size; | |
4369 | goto tryagain; | |
4370 | ||
4371 | case ENOTSUP: | |
4372 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4373 | "pool must be upgraded")); | |
4374 | err = zfs_error(hdl, EZFS_BADVERSION, errbuf); | |
4375 | break; | |
4376 | case EINVAL: | |
4377 | err = zfs_error(hdl, EZFS_BADTYPE, errbuf); | |
4378 | break; | |
4379 | case ENOENT: | |
4380 | err = zfs_error(hdl, EZFS_NOENT, errbuf); | |
4381 | break; | |
4382 | default: | |
4383 | err = zfs_standard_error_fmt(hdl, errno, errbuf); | |
4384 | break; | |
4385 | } | |
4386 | } else { | |
4387 | /* success */ | |
4388 | int rc = nvlist_unpack(nvbuf, zc.zc_nvlist_dst_size, nvl, 0); | |
4389 | if (rc) { | |
4390 | (void) snprintf(errbuf, sizeof (errbuf), dgettext( | |
4391 | TEXT_DOMAIN, "cannot get permissions on '%s'"), | |
4392 | zc.zc_name); | |
4393 | err = zfs_standard_error_fmt(hdl, rc, errbuf); | |
4394 | } | |
4395 | } | |
4396 | ||
4397 | free(nvbuf); | |
4398 | out: | |
4399 | return (err); | |
4400 | } | |
4401 | ||
4402 | int | |
4403 | zfs_set_fsacl(zfs_handle_t *zhp, boolean_t un, nvlist_t *nvl) | |
4404 | { | |
a08ee875 | 4405 | zfs_cmd_t zc = {"\0"}; |
0b7936d5 AS |
4406 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
4407 | char *nvbuf; | |
a08ee875 | 4408 | char errbuf[1024]; |
0b7936d5 AS |
4409 | size_t nvsz; |
4410 | int err; | |
4411 | ||
4412 | assert(zhp->zfs_type == ZFS_TYPE_VOLUME || | |
4413 | zhp->zfs_type == ZFS_TYPE_FILESYSTEM); | |
4414 | ||
4415 | err = nvlist_size(nvl, &nvsz, NV_ENCODE_NATIVE); | |
4416 | assert(err == 0); | |
4417 | ||
4418 | nvbuf = malloc(nvsz); | |
4419 | ||
4420 | err = nvlist_pack(nvl, &nvbuf, &nvsz, NV_ENCODE_NATIVE, 0); | |
4421 | assert(err == 0); | |
4422 | ||
4423 | zc.zc_nvlist_src_size = nvsz; | |
4424 | zc.zc_nvlist_src = (uintptr_t)nvbuf; | |
4425 | zc.zc_perm_action = un; | |
4426 | ||
4427 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
4428 | ||
4429 | if (zfs_ioctl(hdl, ZFS_IOC_SET_FSACL, &zc) != 0) { | |
4430 | (void) snprintf(errbuf, sizeof (errbuf), | |
4431 | dgettext(TEXT_DOMAIN, "cannot set permissions on '%s'"), | |
4432 | zc.zc_name); | |
4433 | switch (errno) { | |
4434 | case ENOTSUP: | |
4435 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4436 | "pool must be upgraded")); | |
4437 | err = zfs_error(hdl, EZFS_BADVERSION, errbuf); | |
4438 | break; | |
4439 | case EINVAL: | |
4440 | err = zfs_error(hdl, EZFS_BADTYPE, errbuf); | |
4441 | break; | |
4442 | case ENOENT: | |
4443 | err = zfs_error(hdl, EZFS_NOENT, errbuf); | |
4444 | break; | |
4445 | default: | |
4446 | err = zfs_standard_error_fmt(hdl, errno, errbuf); | |
4447 | break; | |
4448 | } | |
4449 | } | |
4450 | ||
4451 | free(nvbuf); | |
4452 | ||
4453 | return (err); | |
4454 | } | |
4455 | ||
4456 | int | |
4457 | zfs_get_holds(zfs_handle_t *zhp, nvlist_t **nvl) | |
4458 | { | |
a08ee875 LG |
4459 | int err; |
4460 | char errbuf[1024]; | |
0b7936d5 | 4461 | |
a08ee875 | 4462 | err = lzc_get_holds(zhp->zfs_name, nvl); |
0b7936d5 | 4463 | |
a08ee875 LG |
4464 | if (err != 0) { |
4465 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
0b7936d5 | 4466 | |
0b7936d5 AS |
4467 | (void) snprintf(errbuf, sizeof (errbuf), |
4468 | dgettext(TEXT_DOMAIN, "cannot get holds for '%s'"), | |
a08ee875 LG |
4469 | zhp->zfs_name); |
4470 | switch (err) { | |
0b7936d5 AS |
4471 | case ENOTSUP: |
4472 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4473 | "pool must be upgraded")); | |
4474 | err = zfs_error(hdl, EZFS_BADVERSION, errbuf); | |
4475 | break; | |
4476 | case EINVAL: | |
4477 | err = zfs_error(hdl, EZFS_BADTYPE, errbuf); | |
4478 | break; | |
4479 | case ENOENT: | |
4480 | err = zfs_error(hdl, EZFS_NOENT, errbuf); | |
4481 | break; | |
4482 | default: | |
4483 | err = zfs_standard_error_fmt(hdl, errno, errbuf); | |
4484 | break; | |
4485 | } | |
0b7936d5 AS |
4486 | } |
4487 | ||
0b7936d5 AS |
4488 | return (err); |
4489 | } | |
4490 | ||
a08ee875 LG |
4491 | /* |
4492 | * Convert the zvol's volume size to an appropriate reservation. | |
4493 | * Note: If this routine is updated, it is necessary to update the ZFS test | |
4494 | * suite's shell version in reservation.kshlib. | |
4495 | */ | |
428870ff BB |
4496 | uint64_t |
4497 | zvol_volsize_to_reservation(uint64_t volsize, nvlist_t *props) | |
4498 | { | |
4499 | uint64_t numdb; | |
4500 | uint64_t nblocks, volblocksize; | |
4501 | int ncopies; | |
4502 | char *strval; | |
4503 | ||
4504 | if (nvlist_lookup_string(props, | |
4505 | zfs_prop_to_name(ZFS_PROP_COPIES), &strval) == 0) | |
4506 | ncopies = atoi(strval); | |
4507 | else | |
4508 | ncopies = 1; | |
4509 | if (nvlist_lookup_uint64(props, | |
4510 | zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
4511 | &volblocksize) != 0) | |
4512 | volblocksize = ZVOL_DEFAULT_BLOCKSIZE; | |
4513 | nblocks = volsize/volblocksize; | |
4514 | /* start with metadnode L0-L6 */ | |
4515 | numdb = 7; | |
4516 | /* calculate number of indirects */ | |
4517 | while (nblocks > 1) { | |
4518 | nblocks += DNODES_PER_LEVEL - 1; | |
4519 | nblocks /= DNODES_PER_LEVEL; | |
4520 | numdb += nblocks; | |
4521 | } | |
4522 | numdb *= MIN(SPA_DVAS_PER_BP, ncopies + 1); | |
4523 | volsize *= ncopies; | |
4524 | /* | |
4525 | * this is exactly DN_MAX_INDBLKSHIFT when metadata isn't | |
4526 | * compressed, but in practice they compress down to about | |
4527 | * 1100 bytes | |
4528 | */ | |
4529 | numdb *= 1ULL << DN_MAX_INDBLKSHIFT; | |
4530 | volsize += numdb; | |
4531 | return (volsize); | |
4532 | } |