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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. |
34dc7c2f BB |
24 | */ |
25 | ||
34dc7c2f BB |
26 | #include <ctype.h> |
27 | #include <errno.h> | |
34dc7c2f BB |
28 | #include <libintl.h> |
29 | #include <math.h> | |
30 | #include <stdio.h> | |
31 | #include <stdlib.h> | |
32 | #include <strings.h> | |
33 | #include <unistd.h> | |
34 | #include <stddef.h> | |
35 | #include <zone.h> | |
36 | #include <fcntl.h> | |
37 | #include <sys/mntent.h> | |
34dc7c2f | 38 | #include <sys/mount.h> |
34dc7c2f BB |
39 | #include <priv.h> |
40 | #include <pwd.h> | |
41 | #include <grp.h> | |
42 | #include <stddef.h> | |
43 | #include <ucred.h> | |
9babb374 BB |
44 | #include <idmap.h> |
45 | #include <aclutils.h> | |
45d1cae3 | 46 | #include <directory.h> |
34dc7c2f | 47 | |
428870ff | 48 | #include <sys/dnode.h> |
34dc7c2f BB |
49 | #include <sys/spa.h> |
50 | #include <sys/zap.h> | |
51 | #include <libzfs.h> | |
52 | ||
53 | #include "zfs_namecheck.h" | |
54 | #include "zfs_prop.h" | |
55 | #include "libzfs_impl.h" | |
56 | #include "zfs_deleg.h" | |
57 | ||
9babb374 BB |
58 | static int userquota_propname_decode(const char *propname, boolean_t zoned, |
59 | zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp); | |
34dc7c2f BB |
60 | |
61 | /* | |
62 | * Given a single type (not a mask of types), return the type in a human | |
63 | * readable form. | |
64 | */ | |
65 | const char * | |
66 | zfs_type_to_name(zfs_type_t type) | |
67 | { | |
68 | switch (type) { | |
69 | case ZFS_TYPE_FILESYSTEM: | |
70 | return (dgettext(TEXT_DOMAIN, "filesystem")); | |
71 | case ZFS_TYPE_SNAPSHOT: | |
72 | return (dgettext(TEXT_DOMAIN, "snapshot")); | |
73 | case ZFS_TYPE_VOLUME: | |
74 | return (dgettext(TEXT_DOMAIN, "volume")); | |
e75c13c3 BB |
75 | default: |
76 | break; | |
34dc7c2f BB |
77 | } |
78 | ||
79 | return (NULL); | |
80 | } | |
81 | ||
82 | /* | |
83 | * Given a path and mask of ZFS types, return a string describing this dataset. | |
84 | * This is used when we fail to open a dataset and we cannot get an exact type. | |
85 | * We guess what the type would have been based on the path and the mask of | |
86 | * acceptable types. | |
87 | */ | |
88 | static const char * | |
89 | path_to_str(const char *path, int types) | |
90 | { | |
91 | /* | |
92 | * When given a single type, always report the exact type. | |
93 | */ | |
94 | if (types == ZFS_TYPE_SNAPSHOT) | |
95 | return (dgettext(TEXT_DOMAIN, "snapshot")); | |
96 | if (types == ZFS_TYPE_FILESYSTEM) | |
97 | return (dgettext(TEXT_DOMAIN, "filesystem")); | |
98 | if (types == ZFS_TYPE_VOLUME) | |
99 | return (dgettext(TEXT_DOMAIN, "volume")); | |
100 | ||
101 | /* | |
102 | * The user is requesting more than one type of dataset. If this is the | |
103 | * case, consult the path itself. If we're looking for a snapshot, and | |
104 | * a '@' is found, then report it as "snapshot". Otherwise, remove the | |
105 | * snapshot attribute and try again. | |
106 | */ | |
107 | if (types & ZFS_TYPE_SNAPSHOT) { | |
108 | if (strchr(path, '@') != NULL) | |
109 | return (dgettext(TEXT_DOMAIN, "snapshot")); | |
110 | return (path_to_str(path, types & ~ZFS_TYPE_SNAPSHOT)); | |
111 | } | |
112 | ||
34dc7c2f BB |
113 | /* |
114 | * The user has requested either filesystems or volumes. | |
115 | * We have no way of knowing a priori what type this would be, so always | |
116 | * report it as "filesystem" or "volume", our two primitive types. | |
117 | */ | |
118 | if (types & ZFS_TYPE_FILESYSTEM) | |
119 | return (dgettext(TEXT_DOMAIN, "filesystem")); | |
120 | ||
121 | assert(types & ZFS_TYPE_VOLUME); | |
122 | return (dgettext(TEXT_DOMAIN, "volume")); | |
123 | } | |
124 | ||
125 | /* | |
126 | * Validate a ZFS path. This is used even before trying to open the dataset, to | |
9babb374 BB |
127 | * provide a more meaningful error message. We call zfs_error_aux() to |
128 | * explain exactly why the name was not valid. | |
34dc7c2f | 129 | */ |
572e2857 | 130 | int |
34dc7c2f BB |
131 | zfs_validate_name(libzfs_handle_t *hdl, const char *path, int type, |
132 | boolean_t modifying) | |
133 | { | |
134 | namecheck_err_t why; | |
135 | char what; | |
136 | ||
137 | if (dataset_namecheck(path, &why, &what) != 0) { | |
138 | if (hdl != NULL) { | |
139 | switch (why) { | |
140 | case NAME_ERR_TOOLONG: | |
141 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
142 | "name is too long")); | |
143 | break; | |
144 | ||
145 | case NAME_ERR_LEADING_SLASH: | |
146 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
147 | "leading slash in name")); | |
148 | break; | |
149 | ||
150 | case NAME_ERR_EMPTY_COMPONENT: | |
151 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
152 | "empty component in name")); | |
153 | break; | |
154 | ||
155 | case NAME_ERR_TRAILING_SLASH: | |
156 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
157 | "trailing slash in name")); | |
158 | break; | |
159 | ||
160 | case NAME_ERR_INVALCHAR: | |
161 | zfs_error_aux(hdl, | |
162 | dgettext(TEXT_DOMAIN, "invalid character " | |
163 | "'%c' in name"), what); | |
164 | break; | |
165 | ||
166 | case NAME_ERR_MULTIPLE_AT: | |
167 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
168 | "multiple '@' delimiters in name")); | |
169 | break; | |
170 | ||
171 | case NAME_ERR_NOLETTER: | |
172 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
173 | "pool doesn't begin with a letter")); | |
174 | break; | |
175 | ||
176 | case NAME_ERR_RESERVED: | |
177 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
178 | "name is reserved")); | |
179 | break; | |
180 | ||
181 | case NAME_ERR_DISKLIKE: | |
182 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
183 | "reserved disk name")); | |
184 | break; | |
e75c13c3 BB |
185 | default: |
186 | break; | |
34dc7c2f BB |
187 | } |
188 | } | |
189 | ||
190 | return (0); | |
191 | } | |
192 | ||
193 | if (!(type & ZFS_TYPE_SNAPSHOT) && strchr(path, '@') != NULL) { | |
194 | if (hdl != NULL) | |
195 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
196 | "snapshot delimiter '@' in filesystem name")); | |
197 | return (0); | |
198 | } | |
199 | ||
200 | if (type == ZFS_TYPE_SNAPSHOT && strchr(path, '@') == NULL) { | |
201 | if (hdl != NULL) | |
202 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
203 | "missing '@' delimiter in snapshot name")); | |
204 | return (0); | |
205 | } | |
206 | ||
207 | if (modifying && strchr(path, '%') != NULL) { | |
208 | if (hdl != NULL) | |
209 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
210 | "invalid character %c in name"), '%'); | |
211 | return (0); | |
212 | } | |
213 | ||
214 | return (-1); | |
215 | } | |
216 | ||
217 | int | |
218 | zfs_name_valid(const char *name, zfs_type_t type) | |
219 | { | |
220 | if (type == ZFS_TYPE_POOL) | |
221 | return (zpool_name_valid(NULL, B_FALSE, name)); | |
222 | return (zfs_validate_name(NULL, name, type, B_FALSE)); | |
223 | } | |
224 | ||
225 | /* | |
226 | * This function takes the raw DSL properties, and filters out the user-defined | |
227 | * properties into a separate nvlist. | |
228 | */ | |
229 | static nvlist_t * | |
230 | process_user_props(zfs_handle_t *zhp, nvlist_t *props) | |
231 | { | |
232 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
233 | nvpair_t *elem; | |
234 | nvlist_t *propval; | |
235 | nvlist_t *nvl; | |
236 | ||
237 | if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) { | |
238 | (void) no_memory(hdl); | |
239 | return (NULL); | |
240 | } | |
241 | ||
242 | elem = NULL; | |
243 | while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { | |
244 | if (!zfs_prop_user(nvpair_name(elem))) | |
245 | continue; | |
246 | ||
247 | verify(nvpair_value_nvlist(elem, &propval) == 0); | |
248 | if (nvlist_add_nvlist(nvl, nvpair_name(elem), propval) != 0) { | |
249 | nvlist_free(nvl); | |
250 | (void) no_memory(hdl); | |
251 | return (NULL); | |
252 | } | |
253 | } | |
254 | ||
255 | return (nvl); | |
256 | } | |
257 | ||
b128c09f BB |
258 | static zpool_handle_t * |
259 | zpool_add_handle(zfs_handle_t *zhp, const char *pool_name) | |
260 | { | |
261 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
262 | zpool_handle_t *zph; | |
263 | ||
264 | if ((zph = zpool_open_canfail(hdl, pool_name)) != NULL) { | |
265 | if (hdl->libzfs_pool_handles != NULL) | |
266 | zph->zpool_next = hdl->libzfs_pool_handles; | |
267 | hdl->libzfs_pool_handles = zph; | |
268 | } | |
269 | return (zph); | |
270 | } | |
271 | ||
272 | static zpool_handle_t * | |
273 | zpool_find_handle(zfs_handle_t *zhp, const char *pool_name, int len) | |
274 | { | |
275 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
276 | zpool_handle_t *zph = hdl->libzfs_pool_handles; | |
277 | ||
278 | while ((zph != NULL) && | |
279 | (strncmp(pool_name, zpool_get_name(zph), len) != 0)) | |
280 | zph = zph->zpool_next; | |
281 | return (zph); | |
282 | } | |
283 | ||
284 | /* | |
285 | * Returns a handle to the pool that contains the provided dataset. | |
286 | * If a handle to that pool already exists then that handle is returned. | |
287 | * Otherwise, a new handle is created and added to the list of handles. | |
288 | */ | |
289 | static zpool_handle_t * | |
290 | zpool_handle(zfs_handle_t *zhp) | |
291 | { | |
292 | char *pool_name; | |
293 | int len; | |
294 | zpool_handle_t *zph; | |
295 | ||
296 | len = strcspn(zhp->zfs_name, "/@") + 1; | |
297 | pool_name = zfs_alloc(zhp->zfs_hdl, len); | |
298 | (void) strlcpy(pool_name, zhp->zfs_name, len); | |
299 | ||
300 | zph = zpool_find_handle(zhp, pool_name, len); | |
301 | if (zph == NULL) | |
302 | zph = zpool_add_handle(zhp, pool_name); | |
303 | ||
304 | free(pool_name); | |
305 | return (zph); | |
306 | } | |
307 | ||
308 | void | |
309 | zpool_free_handles(libzfs_handle_t *hdl) | |
310 | { | |
311 | zpool_handle_t *next, *zph = hdl->libzfs_pool_handles; | |
312 | ||
313 | while (zph != NULL) { | |
314 | next = zph->zpool_next; | |
315 | zpool_close(zph); | |
316 | zph = next; | |
317 | } | |
318 | hdl->libzfs_pool_handles = NULL; | |
319 | } | |
320 | ||
34dc7c2f BB |
321 | /* |
322 | * Utility function to gather stats (objset and zpl) for the given object. | |
323 | */ | |
324 | static int | |
fb5f0bc8 | 325 | get_stats_ioctl(zfs_handle_t *zhp, zfs_cmd_t *zc) |
34dc7c2f | 326 | { |
34dc7c2f | 327 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
34dc7c2f | 328 | |
fb5f0bc8 | 329 | (void) strlcpy(zc->zc_name, zhp->zfs_name, sizeof (zc->zc_name)); |
34dc7c2f | 330 | |
fb5f0bc8 | 331 | while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, zc) != 0) { |
34dc7c2f | 332 | if (errno == ENOMEM) { |
fb5f0bc8 | 333 | if (zcmd_expand_dst_nvlist(hdl, zc) != 0) { |
34dc7c2f BB |
334 | return (-1); |
335 | } | |
336 | } else { | |
34dc7c2f BB |
337 | return (-1); |
338 | } | |
339 | } | |
fb5f0bc8 BB |
340 | return (0); |
341 | } | |
34dc7c2f | 342 | |
428870ff BB |
343 | /* |
344 | * Utility function to get the received properties of the given object. | |
345 | */ | |
346 | static int | |
347 | get_recvd_props_ioctl(zfs_handle_t *zhp) | |
348 | { | |
349 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
350 | nvlist_t *recvdprops; | |
2598c001 | 351 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
428870ff BB |
352 | int err; |
353 | ||
354 | if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) | |
355 | return (-1); | |
356 | ||
357 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
358 | ||
359 | while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_RECVD_PROPS, &zc) != 0) { | |
360 | if (errno == ENOMEM) { | |
361 | if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) { | |
362 | return (-1); | |
363 | } | |
364 | } else { | |
365 | zcmd_free_nvlists(&zc); | |
366 | return (-1); | |
367 | } | |
368 | } | |
369 | ||
370 | err = zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &recvdprops); | |
371 | zcmd_free_nvlists(&zc); | |
372 | if (err != 0) | |
373 | return (-1); | |
374 | ||
375 | nvlist_free(zhp->zfs_recvd_props); | |
376 | zhp->zfs_recvd_props = recvdprops; | |
377 | ||
378 | return (0); | |
379 | } | |
380 | ||
fb5f0bc8 BB |
381 | static int |
382 | put_stats_zhdl(zfs_handle_t *zhp, zfs_cmd_t *zc) | |
383 | { | |
384 | nvlist_t *allprops, *userprops; | |
34dc7c2f | 385 | |
fb5f0bc8 BB |
386 | zhp->zfs_dmustats = zc->zc_objset_stats; /* structure assignment */ |
387 | ||
388 | if (zcmd_read_dst_nvlist(zhp->zfs_hdl, zc, &allprops) != 0) { | |
34dc7c2f BB |
389 | return (-1); |
390 | } | |
391 | ||
9babb374 BB |
392 | /* |
393 | * XXX Why do we store the user props separately, in addition to | |
394 | * storing them in zfs_props? | |
395 | */ | |
34dc7c2f BB |
396 | if ((userprops = process_user_props(zhp, allprops)) == NULL) { |
397 | nvlist_free(allprops); | |
398 | return (-1); | |
399 | } | |
400 | ||
401 | nvlist_free(zhp->zfs_props); | |
402 | nvlist_free(zhp->zfs_user_props); | |
403 | ||
404 | zhp->zfs_props = allprops; | |
405 | zhp->zfs_user_props = userprops; | |
406 | ||
407 | return (0); | |
408 | } | |
409 | ||
fb5f0bc8 BB |
410 | static int |
411 | get_stats(zfs_handle_t *zhp) | |
412 | { | |
413 | int rc = 0; | |
2598c001 | 414 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
fb5f0bc8 BB |
415 | |
416 | if (zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) | |
417 | return (-1); | |
418 | if (get_stats_ioctl(zhp, &zc) != 0) | |
419 | rc = -1; | |
420 | else if (put_stats_zhdl(zhp, &zc) != 0) | |
421 | rc = -1; | |
422 | zcmd_free_nvlists(&zc); | |
423 | return (rc); | |
424 | } | |
425 | ||
34dc7c2f BB |
426 | /* |
427 | * Refresh the properties currently stored in the handle. | |
428 | */ | |
429 | void | |
430 | zfs_refresh_properties(zfs_handle_t *zhp) | |
431 | { | |
432 | (void) get_stats(zhp); | |
433 | } | |
434 | ||
435 | /* | |
436 | * Makes a handle from the given dataset name. Used by zfs_open() and | |
437 | * zfs_iter_* to create child handles on the fly. | |
438 | */ | |
fb5f0bc8 BB |
439 | static int |
440 | make_dataset_handle_common(zfs_handle_t *zhp, zfs_cmd_t *zc) | |
34dc7c2f | 441 | { |
428870ff | 442 | if (put_stats_zhdl(zhp, zc) != 0) |
fb5f0bc8 | 443 | return (-1); |
34dc7c2f BB |
444 | |
445 | /* | |
446 | * We've managed to open the dataset and gather statistics. Determine | |
447 | * the high-level type. | |
448 | */ | |
449 | if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) | |
450 | zhp->zfs_head_type = ZFS_TYPE_VOLUME; | |
451 | else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) | |
452 | zhp->zfs_head_type = ZFS_TYPE_FILESYSTEM; | |
453 | else | |
454 | abort(); | |
455 | ||
456 | if (zhp->zfs_dmustats.dds_is_snapshot) | |
457 | zhp->zfs_type = ZFS_TYPE_SNAPSHOT; | |
458 | else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) | |
459 | zhp->zfs_type = ZFS_TYPE_VOLUME; | |
460 | else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) | |
461 | zhp->zfs_type = ZFS_TYPE_FILESYSTEM; | |
462 | else | |
463 | abort(); /* we should never see any other types */ | |
464 | ||
428870ff BB |
465 | if ((zhp->zpool_hdl = zpool_handle(zhp)) == NULL) |
466 | return (-1); | |
467 | ||
fb5f0bc8 BB |
468 | return (0); |
469 | } | |
470 | ||
471 | zfs_handle_t * | |
472 | make_dataset_handle(libzfs_handle_t *hdl, const char *path) | |
473 | { | |
2598c001 | 474 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
fb5f0bc8 BB |
475 | |
476 | zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); | |
477 | ||
478 | if (zhp == NULL) | |
479 | return (NULL); | |
480 | ||
481 | zhp->zfs_hdl = hdl; | |
482 | (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); | |
483 | if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) { | |
484 | free(zhp); | |
485 | return (NULL); | |
486 | } | |
487 | if (get_stats_ioctl(zhp, &zc) == -1) { | |
488 | zcmd_free_nvlists(&zc); | |
489 | free(zhp); | |
490 | return (NULL); | |
491 | } | |
492 | if (make_dataset_handle_common(zhp, &zc) == -1) { | |
493 | free(zhp); | |
494 | zhp = NULL; | |
495 | } | |
496 | zcmd_free_nvlists(&zc); | |
497 | return (zhp); | |
498 | } | |
499 | ||
500 | static zfs_handle_t * | |
501 | make_dataset_handle_zc(libzfs_handle_t *hdl, zfs_cmd_t *zc) | |
502 | { | |
503 | zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); | |
504 | ||
505 | if (zhp == NULL) | |
506 | return (NULL); | |
507 | ||
508 | zhp->zfs_hdl = hdl; | |
509 | (void) strlcpy(zhp->zfs_name, zc->zc_name, sizeof (zhp->zfs_name)); | |
510 | if (make_dataset_handle_common(zhp, zc) == -1) { | |
511 | free(zhp); | |
512 | return (NULL); | |
513 | } | |
34dc7c2f BB |
514 | return (zhp); |
515 | } | |
516 | ||
517 | /* | |
518 | * Opens the given snapshot, filesystem, or volume. The 'types' | |
519 | * argument is a mask of acceptable types. The function will print an | |
520 | * appropriate error message and return NULL if it can't be opened. | |
521 | */ | |
522 | zfs_handle_t * | |
523 | zfs_open(libzfs_handle_t *hdl, const char *path, int types) | |
524 | { | |
525 | zfs_handle_t *zhp; | |
526 | char errbuf[1024]; | |
527 | ||
528 | (void) snprintf(errbuf, sizeof (errbuf), | |
529 | dgettext(TEXT_DOMAIN, "cannot open '%s'"), path); | |
530 | ||
531 | /* | |
532 | * Validate the name before we even try to open it. | |
533 | */ | |
534 | if (!zfs_validate_name(hdl, path, ZFS_TYPE_DATASET, B_FALSE)) { | |
535 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
536 | "invalid dataset name")); | |
537 | (void) zfs_error(hdl, EZFS_INVALIDNAME, errbuf); | |
538 | return (NULL); | |
539 | } | |
540 | ||
541 | /* | |
542 | * Try to get stats for the dataset, which will tell us if it exists. | |
543 | */ | |
544 | errno = 0; | |
545 | if ((zhp = make_dataset_handle(hdl, path)) == NULL) { | |
546 | (void) zfs_standard_error(hdl, errno, errbuf); | |
547 | return (NULL); | |
548 | } | |
549 | ||
550 | if (!(types & zhp->zfs_type)) { | |
551 | (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); | |
552 | zfs_close(zhp); | |
553 | return (NULL); | |
554 | } | |
555 | ||
556 | return (zhp); | |
557 | } | |
558 | ||
559 | /* | |
560 | * Release a ZFS handle. Nothing to do but free the associated memory. | |
561 | */ | |
562 | void | |
563 | zfs_close(zfs_handle_t *zhp) | |
564 | { | |
565 | if (zhp->zfs_mntopts) | |
566 | free(zhp->zfs_mntopts); | |
567 | nvlist_free(zhp->zfs_props); | |
568 | nvlist_free(zhp->zfs_user_props); | |
428870ff | 569 | nvlist_free(zhp->zfs_recvd_props); |
34dc7c2f BB |
570 | free(zhp); |
571 | } | |
572 | ||
fb5f0bc8 BB |
573 | typedef struct mnttab_node { |
574 | struct mnttab mtn_mt; | |
575 | avl_node_t mtn_node; | |
576 | } mnttab_node_t; | |
577 | ||
578 | static int | |
579 | libzfs_mnttab_cache_compare(const void *arg1, const void *arg2) | |
580 | { | |
581 | const mnttab_node_t *mtn1 = arg1; | |
582 | const mnttab_node_t *mtn2 = arg2; | |
583 | int rv; | |
584 | ||
585 | rv = strcmp(mtn1->mtn_mt.mnt_special, mtn2->mtn_mt.mnt_special); | |
586 | ||
587 | if (rv == 0) | |
588 | return (0); | |
589 | return (rv > 0 ? 1 : -1); | |
590 | } | |
591 | ||
592 | void | |
593 | libzfs_mnttab_init(libzfs_handle_t *hdl) | |
594 | { | |
fb5f0bc8 BB |
595 | assert(avl_numnodes(&hdl->libzfs_mnttab_cache) == 0); |
596 | avl_create(&hdl->libzfs_mnttab_cache, libzfs_mnttab_cache_compare, | |
597 | sizeof (mnttab_node_t), offsetof(mnttab_node_t, mtn_node)); | |
9babb374 BB |
598 | } |
599 | ||
600 | void | |
601 | libzfs_mnttab_update(libzfs_handle_t *hdl) | |
602 | { | |
603 | struct mnttab entry; | |
fb5f0bc8 BB |
604 | |
605 | rewind(hdl->libzfs_mnttab); | |
606 | while (getmntent(hdl->libzfs_mnttab, &entry) == 0) { | |
607 | mnttab_node_t *mtn; | |
608 | ||
609 | if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) | |
610 | continue; | |
611 | mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); | |
612 | mtn->mtn_mt.mnt_special = zfs_strdup(hdl, entry.mnt_special); | |
613 | mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, entry.mnt_mountp); | |
614 | mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, entry.mnt_fstype); | |
615 | mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, entry.mnt_mntopts); | |
616 | avl_add(&hdl->libzfs_mnttab_cache, mtn); | |
617 | } | |
618 | } | |
619 | ||
620 | void | |
621 | libzfs_mnttab_fini(libzfs_handle_t *hdl) | |
622 | { | |
623 | void *cookie = NULL; | |
624 | mnttab_node_t *mtn; | |
625 | ||
c65aa5b2 | 626 | while ((mtn = avl_destroy_nodes(&hdl->libzfs_mnttab_cache, &cookie))) { |
fb5f0bc8 BB |
627 | free(mtn->mtn_mt.mnt_special); |
628 | free(mtn->mtn_mt.mnt_mountp); | |
629 | free(mtn->mtn_mt.mnt_fstype); | |
630 | free(mtn->mtn_mt.mnt_mntopts); | |
631 | free(mtn); | |
632 | } | |
633 | avl_destroy(&hdl->libzfs_mnttab_cache); | |
634 | } | |
635 | ||
9babb374 BB |
636 | void |
637 | libzfs_mnttab_cache(libzfs_handle_t *hdl, boolean_t enable) | |
638 | { | |
639 | hdl->libzfs_mnttab_enable = enable; | |
640 | } | |
641 | ||
fb5f0bc8 BB |
642 | int |
643 | libzfs_mnttab_find(libzfs_handle_t *hdl, const char *fsname, | |
644 | struct mnttab *entry) | |
645 | { | |
646 | mnttab_node_t find; | |
647 | mnttab_node_t *mtn; | |
648 | ||
9babb374 BB |
649 | if (!hdl->libzfs_mnttab_enable) { |
650 | struct mnttab srch = { 0 }; | |
651 | ||
652 | if (avl_numnodes(&hdl->libzfs_mnttab_cache)) | |
653 | libzfs_mnttab_fini(hdl); | |
654 | rewind(hdl->libzfs_mnttab); | |
655 | srch.mnt_special = (char *)fsname; | |
656 | srch.mnt_fstype = MNTTYPE_ZFS; | |
657 | if (getmntany(hdl->libzfs_mnttab, entry, &srch) == 0) | |
658 | return (0); | |
659 | else | |
660 | return (ENOENT); | |
661 | } | |
662 | ||
fb5f0bc8 | 663 | if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) |
9babb374 | 664 | libzfs_mnttab_update(hdl); |
fb5f0bc8 BB |
665 | |
666 | find.mtn_mt.mnt_special = (char *)fsname; | |
667 | mtn = avl_find(&hdl->libzfs_mnttab_cache, &find, NULL); | |
668 | if (mtn) { | |
669 | *entry = mtn->mtn_mt; | |
670 | return (0); | |
671 | } | |
672 | return (ENOENT); | |
673 | } | |
674 | ||
675 | void | |
676 | libzfs_mnttab_add(libzfs_handle_t *hdl, const char *special, | |
677 | const char *mountp, const char *mntopts) | |
678 | { | |
679 | mnttab_node_t *mtn; | |
680 | ||
681 | if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) | |
682 | return; | |
683 | mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); | |
684 | mtn->mtn_mt.mnt_special = zfs_strdup(hdl, special); | |
685 | mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, mountp); | |
686 | mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, MNTTYPE_ZFS); | |
687 | mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, mntopts); | |
688 | avl_add(&hdl->libzfs_mnttab_cache, mtn); | |
689 | } | |
690 | ||
691 | void | |
692 | libzfs_mnttab_remove(libzfs_handle_t *hdl, const char *fsname) | |
693 | { | |
694 | mnttab_node_t find; | |
695 | mnttab_node_t *ret; | |
696 | ||
697 | find.mtn_mt.mnt_special = (char *)fsname; | |
c65aa5b2 | 698 | if ((ret = avl_find(&hdl->libzfs_mnttab_cache, (void *)&find, NULL))) { |
fb5f0bc8 BB |
699 | avl_remove(&hdl->libzfs_mnttab_cache, ret); |
700 | free(ret->mtn_mt.mnt_special); | |
701 | free(ret->mtn_mt.mnt_mountp); | |
702 | free(ret->mtn_mt.mnt_fstype); | |
703 | free(ret->mtn_mt.mnt_mntopts); | |
704 | free(ret); | |
705 | } | |
706 | } | |
707 | ||
34dc7c2f BB |
708 | int |
709 | zfs_spa_version(zfs_handle_t *zhp, int *spa_version) | |
710 | { | |
b128c09f | 711 | zpool_handle_t *zpool_handle = zhp->zpool_hdl; |
34dc7c2f | 712 | |
34dc7c2f BB |
713 | if (zpool_handle == NULL) |
714 | return (-1); | |
715 | ||
716 | *spa_version = zpool_get_prop_int(zpool_handle, | |
717 | ZPOOL_PROP_VERSION, NULL); | |
34dc7c2f BB |
718 | return (0); |
719 | } | |
720 | ||
721 | /* | |
722 | * The choice of reservation property depends on the SPA version. | |
723 | */ | |
724 | static int | |
725 | zfs_which_resv_prop(zfs_handle_t *zhp, zfs_prop_t *resv_prop) | |
726 | { | |
727 | int spa_version; | |
728 | ||
729 | if (zfs_spa_version(zhp, &spa_version) < 0) | |
730 | return (-1); | |
731 | ||
732 | if (spa_version >= SPA_VERSION_REFRESERVATION) | |
733 | *resv_prop = ZFS_PROP_REFRESERVATION; | |
734 | else | |
735 | *resv_prop = ZFS_PROP_RESERVATION; | |
736 | ||
737 | return (0); | |
738 | } | |
739 | ||
740 | /* | |
741 | * Given an nvlist of properties to set, validates that they are correct, and | |
742 | * parses any numeric properties (index, boolean, etc) if they are specified as | |
743 | * strings. | |
744 | */ | |
b128c09f BB |
745 | nvlist_t * |
746 | zfs_valid_proplist(libzfs_handle_t *hdl, zfs_type_t type, nvlist_t *nvl, | |
34dc7c2f BB |
747 | uint64_t zoned, zfs_handle_t *zhp, const char *errbuf) |
748 | { | |
749 | nvpair_t *elem; | |
750 | uint64_t intval; | |
751 | char *strval; | |
752 | zfs_prop_t prop; | |
753 | nvlist_t *ret; | |
754 | int chosen_normal = -1; | |
755 | int chosen_utf = -1; | |
756 | ||
34dc7c2f BB |
757 | if (nvlist_alloc(&ret, NV_UNIQUE_NAME, 0) != 0) { |
758 | (void) no_memory(hdl); | |
759 | return (NULL); | |
760 | } | |
761 | ||
9babb374 BB |
762 | /* |
763 | * Make sure this property is valid and applies to this type. | |
764 | */ | |
765 | ||
34dc7c2f BB |
766 | elem = NULL; |
767 | while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) { | |
768 | const char *propname = nvpair_name(elem); | |
769 | ||
9babb374 BB |
770 | prop = zfs_name_to_prop(propname); |
771 | if (prop == ZPROP_INVAL && zfs_prop_user(propname)) { | |
34dc7c2f | 772 | /* |
9babb374 | 773 | * This is a user property: make sure it's a |
34dc7c2f BB |
774 | * string, and that it's less than ZAP_MAXNAMELEN. |
775 | */ | |
776 | if (nvpair_type(elem) != DATA_TYPE_STRING) { | |
777 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
778 | "'%s' must be a string"), propname); | |
779 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
780 | goto error; | |
781 | } | |
782 | ||
783 | if (strlen(nvpair_name(elem)) >= ZAP_MAXNAMELEN) { | |
784 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
785 | "property name '%s' is too long"), | |
786 | propname); | |
787 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
788 | goto error; | |
789 | } | |
790 | ||
791 | (void) nvpair_value_string(elem, &strval); | |
792 | if (nvlist_add_string(ret, propname, strval) != 0) { | |
793 | (void) no_memory(hdl); | |
794 | goto error; | |
795 | } | |
796 | continue; | |
797 | } | |
798 | ||
9babb374 BB |
799 | /* |
800 | * Currently, only user properties can be modified on | |
801 | * snapshots. | |
802 | */ | |
b128c09f BB |
803 | if (type == ZFS_TYPE_SNAPSHOT) { |
804 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
805 | "this property can not be modified for snapshots")); | |
806 | (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); | |
807 | goto error; | |
808 | } | |
809 | ||
9babb374 BB |
810 | if (prop == ZPROP_INVAL && zfs_prop_userquota(propname)) { |
811 | zfs_userquota_prop_t uqtype; | |
812 | char newpropname[128]; | |
813 | char domain[128]; | |
814 | uint64_t rid; | |
815 | uint64_t valary[3]; | |
816 | ||
817 | if (userquota_propname_decode(propname, zoned, | |
818 | &uqtype, domain, sizeof (domain), &rid) != 0) { | |
819 | zfs_error_aux(hdl, | |
820 | dgettext(TEXT_DOMAIN, | |
821 | "'%s' has an invalid user/group name"), | |
822 | propname); | |
823 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
824 | goto error; | |
825 | } | |
826 | ||
827 | if (uqtype != ZFS_PROP_USERQUOTA && | |
828 | uqtype != ZFS_PROP_GROUPQUOTA) { | |
829 | zfs_error_aux(hdl, | |
830 | dgettext(TEXT_DOMAIN, "'%s' is readonly"), | |
831 | propname); | |
832 | (void) zfs_error(hdl, EZFS_PROPREADONLY, | |
833 | errbuf); | |
834 | goto error; | |
835 | } | |
836 | ||
837 | if (nvpair_type(elem) == DATA_TYPE_STRING) { | |
838 | (void) nvpair_value_string(elem, &strval); | |
839 | if (strcmp(strval, "none") == 0) { | |
840 | intval = 0; | |
841 | } else if (zfs_nicestrtonum(hdl, | |
842 | strval, &intval) != 0) { | |
843 | (void) zfs_error(hdl, | |
844 | EZFS_BADPROP, errbuf); | |
845 | goto error; | |
846 | } | |
847 | } else if (nvpair_type(elem) == | |
848 | DATA_TYPE_UINT64) { | |
849 | (void) nvpair_value_uint64(elem, &intval); | |
850 | if (intval == 0) { | |
851 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
852 | "use 'none' to disable " | |
853 | "userquota/groupquota")); | |
854 | goto error; | |
855 | } | |
856 | } else { | |
857 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
858 | "'%s' must be a number"), propname); | |
859 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
860 | goto error; | |
861 | } | |
862 | ||
428870ff BB |
863 | /* |
864 | * Encode the prop name as | |
865 | * userquota@<hex-rid>-domain, to make it easy | |
866 | * for the kernel to decode. | |
867 | */ | |
9babb374 | 868 | (void) snprintf(newpropname, sizeof (newpropname), |
428870ff BB |
869 | "%s%llx-%s", zfs_userquota_prop_prefixes[uqtype], |
870 | (longlong_t)rid, domain); | |
9babb374 BB |
871 | valary[0] = uqtype; |
872 | valary[1] = rid; | |
873 | valary[2] = intval; | |
874 | if (nvlist_add_uint64_array(ret, newpropname, | |
875 | valary, 3) != 0) { | |
876 | (void) no_memory(hdl); | |
877 | goto error; | |
878 | } | |
879 | continue; | |
880 | } | |
881 | ||
882 | if (prop == ZPROP_INVAL) { | |
883 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
884 | "invalid property '%s'"), propname); | |
885 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
886 | goto error; | |
887 | } | |
888 | ||
34dc7c2f BB |
889 | if (!zfs_prop_valid_for_type(prop, type)) { |
890 | zfs_error_aux(hdl, | |
891 | dgettext(TEXT_DOMAIN, "'%s' does not " | |
892 | "apply to datasets of this type"), propname); | |
893 | (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); | |
894 | goto error; | |
895 | } | |
896 | ||
897 | if (zfs_prop_readonly(prop) && | |
898 | (!zfs_prop_setonce(prop) || zhp != NULL)) { | |
899 | zfs_error_aux(hdl, | |
900 | dgettext(TEXT_DOMAIN, "'%s' is readonly"), | |
901 | propname); | |
902 | (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); | |
903 | goto error; | |
904 | } | |
905 | ||
906 | if (zprop_parse_value(hdl, elem, prop, type, ret, | |
907 | &strval, &intval, errbuf) != 0) | |
908 | goto error; | |
909 | ||
910 | /* | |
911 | * Perform some additional checks for specific properties. | |
912 | */ | |
913 | switch (prop) { | |
914 | case ZFS_PROP_VERSION: | |
915 | { | |
916 | int version; | |
917 | ||
918 | if (zhp == NULL) | |
919 | break; | |
920 | version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); | |
921 | if (intval < version) { | |
922 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
923 | "Can not downgrade; already at version %u"), | |
924 | version); | |
925 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
926 | goto error; | |
927 | } | |
928 | break; | |
929 | } | |
930 | ||
931 | case ZFS_PROP_RECORDSIZE: | |
932 | case ZFS_PROP_VOLBLOCKSIZE: | |
933 | /* must be power of two within SPA_{MIN,MAX}BLOCKSIZE */ | |
934 | if (intval < SPA_MINBLOCKSIZE || | |
935 | intval > SPA_MAXBLOCKSIZE || !ISP2(intval)) { | |
936 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
937 | "'%s' must be power of 2 from %u " | |
938 | "to %uk"), propname, | |
939 | (uint_t)SPA_MINBLOCKSIZE, | |
940 | (uint_t)SPA_MAXBLOCKSIZE >> 10); | |
941 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
942 | goto error; | |
943 | } | |
944 | break; | |
945 | ||
428870ff BB |
946 | case ZFS_PROP_MLSLABEL: |
947 | { | |
948 | /* | |
949 | * Verify the mlslabel string and convert to | |
950 | * internal hex label string. | |
951 | */ | |
952 | ||
953 | m_label_t *new_sl; | |
954 | char *hex = NULL; /* internal label string */ | |
955 | ||
956 | /* Default value is already OK. */ | |
957 | if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) | |
958 | break; | |
959 | ||
960 | /* Verify the label can be converted to binary form */ | |
961 | if (((new_sl = m_label_alloc(MAC_LABEL)) == NULL) || | |
962 | (str_to_label(strval, &new_sl, MAC_LABEL, | |
963 | L_NO_CORRECTION, NULL) == -1)) { | |
964 | goto badlabel; | |
34dc7c2f BB |
965 | } |
966 | ||
428870ff BB |
967 | /* Now translate to hex internal label string */ |
968 | if (label_to_str(new_sl, &hex, M_INTERNAL, | |
969 | DEF_NAMES) != 0) { | |
970 | if (hex) | |
971 | free(hex); | |
972 | goto badlabel; | |
973 | } | |
974 | m_label_free(new_sl); | |
975 | ||
976 | /* If string is already in internal form, we're done. */ | |
977 | if (strcmp(strval, hex) == 0) { | |
978 | free(hex); | |
979 | break; | |
980 | } | |
981 | ||
982 | /* Replace the label string with the internal form. */ | |
983 | (void) nvlist_remove(ret, zfs_prop_to_name(prop), | |
984 | DATA_TYPE_STRING); | |
985 | verify(nvlist_add_string(ret, zfs_prop_to_name(prop), | |
986 | hex) == 0); | |
987 | free(hex); | |
988 | ||
34dc7c2f BB |
989 | break; |
990 | ||
428870ff BB |
991 | badlabel: |
992 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
993 | "invalid mlslabel '%s'"), strval); | |
994 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
995 | m_label_free(new_sl); /* OK if null */ | |
996 | goto error; | |
997 | ||
998 | } | |
999 | ||
34dc7c2f BB |
1000 | case ZFS_PROP_MOUNTPOINT: |
1001 | { | |
1002 | namecheck_err_t why; | |
1003 | ||
1004 | if (strcmp(strval, ZFS_MOUNTPOINT_NONE) == 0 || | |
1005 | strcmp(strval, ZFS_MOUNTPOINT_LEGACY) == 0) | |
1006 | break; | |
1007 | ||
1008 | if (mountpoint_namecheck(strval, &why)) { | |
1009 | switch (why) { | |
1010 | case NAME_ERR_LEADING_SLASH: | |
1011 | zfs_error_aux(hdl, | |
1012 | dgettext(TEXT_DOMAIN, | |
1013 | "'%s' must be an absolute path, " | |
1014 | "'none', or 'legacy'"), propname); | |
1015 | break; | |
1016 | case NAME_ERR_TOOLONG: | |
1017 | zfs_error_aux(hdl, | |
1018 | dgettext(TEXT_DOMAIN, | |
1019 | "component of '%s' is too long"), | |
1020 | propname); | |
1021 | break; | |
e75c13c3 BB |
1022 | default: |
1023 | break; | |
34dc7c2f BB |
1024 | } |
1025 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1026 | goto error; | |
1027 | } | |
1028 | } | |
1029 | ||
1030 | /*FALLTHRU*/ | |
1031 | ||
1032 | case ZFS_PROP_SHARESMB: | |
1033 | case ZFS_PROP_SHARENFS: | |
1034 | /* | |
1035 | * For the mountpoint and sharenfs or sharesmb | |
1036 | * properties, check if it can be set in a | |
1037 | * global/non-global zone based on | |
1038 | * the zoned property value: | |
1039 | * | |
1040 | * global zone non-global zone | |
1041 | * -------------------------------------------------- | |
1042 | * zoned=on mountpoint (no) mountpoint (yes) | |
1043 | * sharenfs (no) sharenfs (no) | |
1044 | * sharesmb (no) sharesmb (no) | |
1045 | * | |
1046 | * zoned=off mountpoint (yes) N/A | |
1047 | * sharenfs (yes) | |
1048 | * sharesmb (yes) | |
1049 | */ | |
1050 | if (zoned) { | |
1051 | if (getzoneid() == GLOBAL_ZONEID) { | |
1052 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1053 | "'%s' cannot be set on " | |
1054 | "dataset in a non-global zone"), | |
1055 | propname); | |
1056 | (void) zfs_error(hdl, EZFS_ZONED, | |
1057 | errbuf); | |
1058 | goto error; | |
1059 | } else if (prop == ZFS_PROP_SHARENFS || | |
1060 | prop == ZFS_PROP_SHARESMB) { | |
1061 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1062 | "'%s' cannot be set in " | |
1063 | "a non-global zone"), propname); | |
1064 | (void) zfs_error(hdl, EZFS_ZONED, | |
1065 | errbuf); | |
1066 | goto error; | |
1067 | } | |
1068 | } else if (getzoneid() != GLOBAL_ZONEID) { | |
1069 | /* | |
1070 | * If zoned property is 'off', this must be in | |
9babb374 | 1071 | * a global zone. If not, something is wrong. |
34dc7c2f BB |
1072 | */ |
1073 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1074 | "'%s' cannot be set while dataset " | |
1075 | "'zoned' property is set"), propname); | |
1076 | (void) zfs_error(hdl, EZFS_ZONED, errbuf); | |
1077 | goto error; | |
1078 | } | |
1079 | ||
1080 | /* | |
1081 | * At this point, it is legitimate to set the | |
1082 | * property. Now we want to make sure that the | |
1083 | * property value is valid if it is sharenfs. | |
1084 | */ | |
1085 | if ((prop == ZFS_PROP_SHARENFS || | |
1086 | prop == ZFS_PROP_SHARESMB) && | |
1087 | strcmp(strval, "on") != 0 && | |
1088 | strcmp(strval, "off") != 0) { | |
1089 | zfs_share_proto_t proto; | |
1090 | ||
1091 | if (prop == ZFS_PROP_SHARESMB) | |
1092 | proto = PROTO_SMB; | |
1093 | else | |
1094 | proto = PROTO_NFS; | |
1095 | ||
1096 | /* | |
1097 | * Must be an valid sharing protocol | |
1098 | * option string so init the libshare | |
1099 | * in order to enable the parser and | |
1100 | * then parse the options. We use the | |
1101 | * control API since we don't care about | |
1102 | * the current configuration and don't | |
1103 | * want the overhead of loading it | |
1104 | * until we actually do something. | |
1105 | */ | |
1106 | ||
1107 | if (zfs_init_libshare(hdl, | |
1108 | SA_INIT_CONTROL_API) != SA_OK) { | |
1109 | /* | |
1110 | * An error occurred so we can't do | |
1111 | * anything | |
1112 | */ | |
1113 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1114 | "'%s' cannot be set: problem " | |
1115 | "in share initialization"), | |
1116 | propname); | |
1117 | (void) zfs_error(hdl, EZFS_BADPROP, | |
1118 | errbuf); | |
1119 | goto error; | |
1120 | } | |
1121 | ||
1122 | if (zfs_parse_options(strval, proto) != SA_OK) { | |
1123 | /* | |
1124 | * There was an error in parsing so | |
1125 | * deal with it by issuing an error | |
1126 | * message and leaving after | |
1127 | * uninitializing the the libshare | |
1128 | * interface. | |
1129 | */ | |
1130 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1131 | "'%s' cannot be set to invalid " | |
1132 | "options"), propname); | |
1133 | (void) zfs_error(hdl, EZFS_BADPROP, | |
1134 | errbuf); | |
1135 | zfs_uninit_libshare(hdl); | |
1136 | goto error; | |
1137 | } | |
1138 | zfs_uninit_libshare(hdl); | |
1139 | } | |
1140 | ||
1141 | break; | |
1142 | case ZFS_PROP_UTF8ONLY: | |
1143 | chosen_utf = (int)intval; | |
1144 | break; | |
1145 | case ZFS_PROP_NORMALIZE: | |
1146 | chosen_normal = (int)intval; | |
1147 | break; | |
e75c13c3 BB |
1148 | default: |
1149 | break; | |
34dc7c2f BB |
1150 | } |
1151 | ||
1152 | /* | |
1153 | * For changes to existing volumes, we have some additional | |
1154 | * checks to enforce. | |
1155 | */ | |
1156 | if (type == ZFS_TYPE_VOLUME && zhp != NULL) { | |
1157 | uint64_t volsize = zfs_prop_get_int(zhp, | |
1158 | ZFS_PROP_VOLSIZE); | |
1159 | uint64_t blocksize = zfs_prop_get_int(zhp, | |
1160 | ZFS_PROP_VOLBLOCKSIZE); | |
1161 | char buf[64]; | |
1162 | ||
1163 | switch (prop) { | |
1164 | case ZFS_PROP_RESERVATION: | |
1165 | case ZFS_PROP_REFRESERVATION: | |
1166 | if (intval > volsize) { | |
1167 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1168 | "'%s' is greater than current " | |
1169 | "volume size"), propname); | |
1170 | (void) zfs_error(hdl, EZFS_BADPROP, | |
1171 | errbuf); | |
1172 | goto error; | |
1173 | } | |
1174 | break; | |
1175 | ||
1176 | case ZFS_PROP_VOLSIZE: | |
1177 | if (intval % blocksize != 0) { | |
1178 | zfs_nicenum(blocksize, buf, | |
1179 | sizeof (buf)); | |
1180 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1181 | "'%s' must be a multiple of " | |
1182 | "volume block size (%s)"), | |
1183 | propname, buf); | |
1184 | (void) zfs_error(hdl, EZFS_BADPROP, | |
1185 | errbuf); | |
1186 | goto error; | |
1187 | } | |
1188 | ||
1189 | if (intval == 0) { | |
1190 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1191 | "'%s' cannot be zero"), | |
1192 | propname); | |
1193 | (void) zfs_error(hdl, EZFS_BADPROP, | |
1194 | errbuf); | |
1195 | goto error; | |
1196 | } | |
1197 | break; | |
e75c13c3 BB |
1198 | default: |
1199 | break; | |
34dc7c2f BB |
1200 | } |
1201 | } | |
1202 | } | |
1203 | ||
1204 | /* | |
1205 | * If normalization was chosen, but no UTF8 choice was made, | |
1206 | * enforce rejection of non-UTF8 names. | |
1207 | * | |
1208 | * If normalization was chosen, but rejecting non-UTF8 names | |
1209 | * was explicitly not chosen, it is an error. | |
1210 | */ | |
1211 | if (chosen_normal > 0 && chosen_utf < 0) { | |
1212 | if (nvlist_add_uint64(ret, | |
1213 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), 1) != 0) { | |
1214 | (void) no_memory(hdl); | |
1215 | goto error; | |
1216 | } | |
1217 | } else if (chosen_normal > 0 && chosen_utf == 0) { | |
1218 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1219 | "'%s' must be set 'on' if normalization chosen"), | |
1220 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); | |
1221 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1222 | goto error; | |
1223 | } | |
572e2857 BB |
1224 | return (ret); |
1225 | ||
1226 | error: | |
1227 | nvlist_free(ret); | |
1228 | return (NULL); | |
1229 | } | |
1230 | ||
1231 | int | |
1232 | zfs_add_synthetic_resv(zfs_handle_t *zhp, nvlist_t *nvl) | |
1233 | { | |
1234 | uint64_t old_volsize; | |
1235 | uint64_t new_volsize; | |
1236 | uint64_t old_reservation; | |
1237 | uint64_t new_reservation; | |
1238 | zfs_prop_t resv_prop; | |
34dc7c2f BB |
1239 | |
1240 | /* | |
1241 | * If this is an existing volume, and someone is setting the volsize, | |
1242 | * make sure that it matches the reservation, or add it if necessary. | |
1243 | */ | |
572e2857 BB |
1244 | old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); |
1245 | if (zfs_which_resv_prop(zhp, &resv_prop) < 0) | |
1246 | return (-1); | |
1247 | old_reservation = zfs_prop_get_int(zhp, resv_prop); | |
1248 | if ((zvol_volsize_to_reservation(old_volsize, zhp->zfs_props) != | |
1249 | old_reservation) || nvlist_lookup_uint64(nvl, | |
1250 | zfs_prop_to_name(resv_prop), &new_reservation) != ENOENT) { | |
1251 | return (0); | |
34dc7c2f | 1252 | } |
572e2857 BB |
1253 | if (nvlist_lookup_uint64(nvl, zfs_prop_to_name(ZFS_PROP_VOLSIZE), |
1254 | &new_volsize) != 0) | |
1255 | return (-1); | |
1256 | new_reservation = zvol_volsize_to_reservation(new_volsize, | |
1257 | zhp->zfs_props); | |
1258 | if (nvlist_add_uint64(nvl, zfs_prop_to_name(resv_prop), | |
1259 | new_reservation) != 0) { | |
1260 | (void) no_memory(zhp->zfs_hdl); | |
1261 | return (-1); | |
1262 | } | |
1263 | return (1); | |
34dc7c2f BB |
1264 | } |
1265 | ||
428870ff BB |
1266 | void |
1267 | zfs_setprop_error(libzfs_handle_t *hdl, zfs_prop_t prop, int err, | |
1268 | char *errbuf) | |
1269 | { | |
1270 | switch (err) { | |
1271 | ||
1272 | case ENOSPC: | |
1273 | /* | |
1274 | * For quotas and reservations, ENOSPC indicates | |
1275 | * something different; setting a quota or reservation | |
1276 | * doesn't use any disk space. | |
1277 | */ | |
1278 | switch (prop) { | |
1279 | case ZFS_PROP_QUOTA: | |
1280 | case ZFS_PROP_REFQUOTA: | |
1281 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1282 | "size is less than current used or " | |
1283 | "reserved space")); | |
1284 | (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); | |
1285 | break; | |
1286 | ||
1287 | case ZFS_PROP_RESERVATION: | |
1288 | case ZFS_PROP_REFRESERVATION: | |
1289 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1290 | "size is greater than available space")); | |
1291 | (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); | |
1292 | break; | |
1293 | ||
1294 | default: | |
1295 | (void) zfs_standard_error(hdl, err, errbuf); | |
1296 | break; | |
1297 | } | |
1298 | break; | |
1299 | ||
1300 | case EBUSY: | |
1301 | (void) zfs_standard_error(hdl, EBUSY, errbuf); | |
1302 | break; | |
1303 | ||
1304 | case EROFS: | |
1305 | (void) zfs_error(hdl, EZFS_DSREADONLY, errbuf); | |
1306 | break; | |
1307 | ||
1308 | case ENOTSUP: | |
1309 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1310 | "pool and or dataset must be upgraded to set this " | |
1311 | "property or value")); | |
1312 | (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); | |
1313 | break; | |
1314 | ||
1315 | case ERANGE: | |
1316 | if (prop == ZFS_PROP_COMPRESSION) { | |
1317 | (void) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1318 | "property setting is not allowed on " | |
1319 | "bootable datasets")); | |
1320 | (void) zfs_error(hdl, EZFS_NOTSUP, errbuf); | |
1321 | } else { | |
1322 | (void) zfs_standard_error(hdl, err, errbuf); | |
1323 | } | |
1324 | break; | |
1325 | ||
1326 | case EINVAL: | |
1327 | if (prop == ZPROP_INVAL) { | |
1328 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1329 | } else { | |
1330 | (void) zfs_standard_error(hdl, err, errbuf); | |
1331 | } | |
1332 | break; | |
1333 | ||
1334 | case EOVERFLOW: | |
1335 | /* | |
1336 | * This platform can't address a volume this big. | |
1337 | */ | |
1338 | #ifdef _ILP32 | |
1339 | if (prop == ZFS_PROP_VOLSIZE) { | |
1340 | (void) zfs_error(hdl, EZFS_VOLTOOBIG, errbuf); | |
1341 | break; | |
1342 | } | |
1343 | #endif | |
1344 | /* FALLTHROUGH */ | |
1345 | default: | |
1346 | (void) zfs_standard_error(hdl, err, errbuf); | |
1347 | } | |
1348 | } | |
1349 | ||
34dc7c2f BB |
1350 | /* |
1351 | * Given a property name and value, set the property for the given dataset. | |
1352 | */ | |
1353 | int | |
1354 | zfs_prop_set(zfs_handle_t *zhp, const char *propname, const char *propval) | |
1355 | { | |
2598c001 | 1356 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
1357 | int ret = -1; |
1358 | prop_changelist_t *cl = NULL; | |
1359 | char errbuf[1024]; | |
1360 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
1361 | nvlist_t *nvl = NULL, *realprops; | |
1362 | zfs_prop_t prop; | |
b128c09f BB |
1363 | boolean_t do_prefix; |
1364 | uint64_t idx; | |
572e2857 | 1365 | int added_resv; |
34dc7c2f BB |
1366 | |
1367 | (void) snprintf(errbuf, sizeof (errbuf), | |
1368 | dgettext(TEXT_DOMAIN, "cannot set property for '%s'"), | |
1369 | zhp->zfs_name); | |
1370 | ||
1371 | if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0 || | |
1372 | nvlist_add_string(nvl, propname, propval) != 0) { | |
1373 | (void) no_memory(hdl); | |
1374 | goto error; | |
1375 | } | |
1376 | ||
b128c09f | 1377 | if ((realprops = zfs_valid_proplist(hdl, zhp->zfs_type, nvl, |
34dc7c2f BB |
1378 | zfs_prop_get_int(zhp, ZFS_PROP_ZONED), zhp, errbuf)) == NULL) |
1379 | goto error; | |
1380 | ||
1381 | nvlist_free(nvl); | |
1382 | nvl = realprops; | |
1383 | ||
1384 | prop = zfs_name_to_prop(propname); | |
1385 | ||
572e2857 BB |
1386 | if (prop == ZFS_PROP_VOLSIZE) { |
1387 | if ((added_resv = zfs_add_synthetic_resv(zhp, nvl)) == -1) | |
1388 | goto error; | |
1389 | } | |
1390 | ||
b128c09f | 1391 | if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL) |
34dc7c2f BB |
1392 | goto error; |
1393 | ||
1394 | if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) { | |
1395 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1396 | "child dataset with inherited mountpoint is used " | |
1397 | "in a non-global zone")); | |
1398 | ret = zfs_error(hdl, EZFS_ZONED, errbuf); | |
1399 | goto error; | |
1400 | } | |
1401 | ||
b128c09f BB |
1402 | /* |
1403 | * If the dataset's canmount property is being set to noauto, | |
1404 | * then we want to prevent unmounting & remounting it. | |
1405 | */ | |
1406 | do_prefix = !((prop == ZFS_PROP_CANMOUNT) && | |
1407 | (zprop_string_to_index(prop, propval, &idx, | |
1408 | ZFS_TYPE_DATASET) == 0) && (idx == ZFS_CANMOUNT_NOAUTO)); | |
34dc7c2f BB |
1409 | |
1410 | if (do_prefix && (ret = changelist_prefix(cl)) != 0) | |
b128c09f | 1411 | goto error; |
34dc7c2f BB |
1412 | |
1413 | /* | |
1414 | * Execute the corresponding ioctl() to set this property. | |
1415 | */ | |
1416 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
1417 | ||
1418 | if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0) | |
1419 | goto error; | |
1420 | ||
1421 | ret = zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); | |
9babb374 | 1422 | |
34dc7c2f | 1423 | if (ret != 0) { |
428870ff | 1424 | zfs_setprop_error(hdl, prop, errno, errbuf); |
572e2857 BB |
1425 | if (added_resv && errno == ENOSPC) { |
1426 | /* clean up the volsize property we tried to set */ | |
1427 | uint64_t old_volsize = zfs_prop_get_int(zhp, | |
1428 | ZFS_PROP_VOLSIZE); | |
1429 | nvlist_free(nvl); | |
1430 | zcmd_free_nvlists(&zc); | |
1431 | if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) | |
1432 | goto error; | |
1433 | if (nvlist_add_uint64(nvl, | |
1434 | zfs_prop_to_name(ZFS_PROP_VOLSIZE), | |
1435 | old_volsize) != 0) | |
1436 | goto error; | |
1437 | if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0) | |
1438 | goto error; | |
1439 | (void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); | |
1440 | } | |
34dc7c2f BB |
1441 | } else { |
1442 | if (do_prefix) | |
1443 | ret = changelist_postfix(cl); | |
1444 | ||
1445 | /* | |
1446 | * Refresh the statistics so the new property value | |
1447 | * is reflected. | |
1448 | */ | |
1449 | if (ret == 0) | |
1450 | (void) get_stats(zhp); | |
1451 | } | |
1452 | ||
1453 | error: | |
1454 | nvlist_free(nvl); | |
1455 | zcmd_free_nvlists(&zc); | |
1456 | if (cl) | |
1457 | changelist_free(cl); | |
1458 | return (ret); | |
1459 | } | |
1460 | ||
1461 | /* | |
428870ff BB |
1462 | * Given a property, inherit the value from the parent dataset, or if received |
1463 | * is TRUE, revert to the received value, if any. | |
34dc7c2f BB |
1464 | */ |
1465 | int | |
428870ff | 1466 | zfs_prop_inherit(zfs_handle_t *zhp, const char *propname, boolean_t received) |
34dc7c2f | 1467 | { |
2598c001 | 1468 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
1469 | int ret; |
1470 | prop_changelist_t *cl; | |
1471 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
1472 | char errbuf[1024]; | |
1473 | zfs_prop_t prop; | |
1474 | ||
1475 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
1476 | "cannot inherit %s for '%s'"), propname, zhp->zfs_name); | |
1477 | ||
428870ff | 1478 | zc.zc_cookie = received; |
34dc7c2f BB |
1479 | if ((prop = zfs_name_to_prop(propname)) == ZPROP_INVAL) { |
1480 | /* | |
1481 | * For user properties, the amount of work we have to do is very | |
1482 | * small, so just do it here. | |
1483 | */ | |
1484 | if (!zfs_prop_user(propname)) { | |
1485 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1486 | "invalid property")); | |
1487 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
1488 | } | |
1489 | ||
1490 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
1491 | (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); | |
1492 | ||
1493 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc) != 0) | |
1494 | return (zfs_standard_error(hdl, errno, errbuf)); | |
1495 | ||
1496 | return (0); | |
1497 | } | |
1498 | ||
1499 | /* | |
1500 | * Verify that this property is inheritable. | |
1501 | */ | |
1502 | if (zfs_prop_readonly(prop)) | |
1503 | return (zfs_error(hdl, EZFS_PROPREADONLY, errbuf)); | |
1504 | ||
428870ff | 1505 | if (!zfs_prop_inheritable(prop) && !received) |
34dc7c2f BB |
1506 | return (zfs_error(hdl, EZFS_PROPNONINHERIT, errbuf)); |
1507 | ||
1508 | /* | |
1509 | * Check to see if the value applies to this type | |
1510 | */ | |
1511 | if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) | |
1512 | return (zfs_error(hdl, EZFS_PROPTYPE, errbuf)); | |
1513 | ||
1514 | /* | |
572e2857 | 1515 | * Normalize the name, to get rid of shorthand abbreviations. |
34dc7c2f BB |
1516 | */ |
1517 | propname = zfs_prop_to_name(prop); | |
1518 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
1519 | (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); | |
1520 | ||
1521 | if (prop == ZFS_PROP_MOUNTPOINT && getzoneid() == GLOBAL_ZONEID && | |
1522 | zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { | |
1523 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1524 | "dataset is used in a non-global zone")); | |
1525 | return (zfs_error(hdl, EZFS_ZONED, errbuf)); | |
1526 | } | |
1527 | ||
1528 | /* | |
1529 | * Determine datasets which will be affected by this change, if any. | |
1530 | */ | |
b128c09f | 1531 | if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL) |
34dc7c2f BB |
1532 | return (-1); |
1533 | ||
1534 | if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) { | |
1535 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1536 | "child dataset with inherited mountpoint is used " | |
1537 | "in a non-global zone")); | |
1538 | ret = zfs_error(hdl, EZFS_ZONED, errbuf); | |
1539 | goto error; | |
1540 | } | |
1541 | ||
1542 | if ((ret = changelist_prefix(cl)) != 0) | |
1543 | goto error; | |
1544 | ||
1545 | if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc)) != 0) { | |
1546 | return (zfs_standard_error(hdl, errno, errbuf)); | |
1547 | } else { | |
1548 | ||
1549 | if ((ret = changelist_postfix(cl)) != 0) | |
1550 | goto error; | |
1551 | ||
1552 | /* | |
1553 | * Refresh the statistics so the new property is reflected. | |
1554 | */ | |
1555 | (void) get_stats(zhp); | |
1556 | } | |
1557 | ||
1558 | error: | |
1559 | changelist_free(cl); | |
1560 | return (ret); | |
1561 | } | |
1562 | ||
1563 | /* | |
1564 | * True DSL properties are stored in an nvlist. The following two functions | |
1565 | * extract them appropriately. | |
1566 | */ | |
1567 | static uint64_t | |
1568 | getprop_uint64(zfs_handle_t *zhp, zfs_prop_t prop, char **source) | |
1569 | { | |
1570 | nvlist_t *nv; | |
1571 | uint64_t value; | |
1572 | ||
1573 | *source = NULL; | |
1574 | if (nvlist_lookup_nvlist(zhp->zfs_props, | |
1575 | zfs_prop_to_name(prop), &nv) == 0) { | |
1576 | verify(nvlist_lookup_uint64(nv, ZPROP_VALUE, &value) == 0); | |
1577 | (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); | |
1578 | } else { | |
9babb374 BB |
1579 | verify(!zhp->zfs_props_table || |
1580 | zhp->zfs_props_table[prop] == B_TRUE); | |
34dc7c2f BB |
1581 | value = zfs_prop_default_numeric(prop); |
1582 | *source = ""; | |
1583 | } | |
1584 | ||
1585 | return (value); | |
1586 | } | |
1587 | ||
1588 | static char * | |
1589 | getprop_string(zfs_handle_t *zhp, zfs_prop_t prop, char **source) | |
1590 | { | |
1591 | nvlist_t *nv; | |
1592 | char *value; | |
1593 | ||
1594 | *source = NULL; | |
1595 | if (nvlist_lookup_nvlist(zhp->zfs_props, | |
1596 | zfs_prop_to_name(prop), &nv) == 0) { | |
1597 | verify(nvlist_lookup_string(nv, ZPROP_VALUE, &value) == 0); | |
1598 | (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); | |
1599 | } else { | |
9babb374 BB |
1600 | verify(!zhp->zfs_props_table || |
1601 | zhp->zfs_props_table[prop] == B_TRUE); | |
34dc7c2f BB |
1602 | if ((value = (char *)zfs_prop_default_string(prop)) == NULL) |
1603 | value = ""; | |
1604 | *source = ""; | |
1605 | } | |
1606 | ||
1607 | return (value); | |
1608 | } | |
1609 | ||
428870ff BB |
1610 | static boolean_t |
1611 | zfs_is_recvd_props_mode(zfs_handle_t *zhp) | |
1612 | { | |
1613 | return (zhp->zfs_props == zhp->zfs_recvd_props); | |
1614 | } | |
1615 | ||
1616 | static void | |
1617 | zfs_set_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) | |
1618 | { | |
1619 | *cookie = (uint64_t)(uintptr_t)zhp->zfs_props; | |
1620 | zhp->zfs_props = zhp->zfs_recvd_props; | |
1621 | } | |
1622 | ||
1623 | static void | |
1624 | zfs_unset_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) | |
1625 | { | |
1626 | zhp->zfs_props = (nvlist_t *)(uintptr_t)*cookie; | |
1627 | *cookie = 0; | |
1628 | } | |
1629 | ||
34dc7c2f BB |
1630 | /* |
1631 | * Internal function for getting a numeric property. Both zfs_prop_get() and | |
1632 | * zfs_prop_get_int() are built using this interface. | |
1633 | * | |
1634 | * Certain properties can be overridden using 'mount -o'. In this case, scan | |
1635 | * the contents of the /etc/mnttab entry, searching for the appropriate options. | |
1636 | * If they differ from the on-disk values, report the current values and mark | |
1637 | * the source "temporary". | |
1638 | */ | |
1639 | static int | |
1640 | get_numeric_property(zfs_handle_t *zhp, zfs_prop_t prop, zprop_source_t *src, | |
1641 | char **source, uint64_t *val) | |
1642 | { | |
2598c001 | 1643 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
1644 | nvlist_t *zplprops = NULL; |
1645 | struct mnttab mnt; | |
1646 | char *mntopt_on = NULL; | |
1647 | char *mntopt_off = NULL; | |
428870ff | 1648 | boolean_t received = zfs_is_recvd_props_mode(zhp); |
34dc7c2f BB |
1649 | |
1650 | *source = NULL; | |
1651 | ||
1652 | switch (prop) { | |
1653 | case ZFS_PROP_ATIME: | |
1654 | mntopt_on = MNTOPT_ATIME; | |
1655 | mntopt_off = MNTOPT_NOATIME; | |
1656 | break; | |
1657 | ||
1658 | case ZFS_PROP_DEVICES: | |
1659 | mntopt_on = MNTOPT_DEVICES; | |
1660 | mntopt_off = MNTOPT_NODEVICES; | |
1661 | break; | |
1662 | ||
1663 | case ZFS_PROP_EXEC: | |
1664 | mntopt_on = MNTOPT_EXEC; | |
1665 | mntopt_off = MNTOPT_NOEXEC; | |
1666 | break; | |
1667 | ||
1668 | case ZFS_PROP_READONLY: | |
1669 | mntopt_on = MNTOPT_RO; | |
1670 | mntopt_off = MNTOPT_RW; | |
1671 | break; | |
1672 | ||
1673 | case ZFS_PROP_SETUID: | |
1674 | mntopt_on = MNTOPT_SETUID; | |
1675 | mntopt_off = MNTOPT_NOSETUID; | |
1676 | break; | |
1677 | ||
1678 | case ZFS_PROP_XATTR: | |
1679 | mntopt_on = MNTOPT_XATTR; | |
1680 | mntopt_off = MNTOPT_NOXATTR; | |
1681 | break; | |
1682 | ||
1683 | case ZFS_PROP_NBMAND: | |
1684 | mntopt_on = MNTOPT_NBMAND; | |
1685 | mntopt_off = MNTOPT_NONBMAND; | |
1686 | break; | |
e75c13c3 BB |
1687 | default: |
1688 | break; | |
34dc7c2f BB |
1689 | } |
1690 | ||
1691 | /* | |
1692 | * Because looking up the mount options is potentially expensive | |
1693 | * (iterating over all of /etc/mnttab), we defer its calculation until | |
1694 | * we're looking up a property which requires its presence. | |
1695 | */ | |
1696 | if (!zhp->zfs_mntcheck && | |
1697 | (mntopt_on != NULL || prop == ZFS_PROP_MOUNTED)) { | |
fb5f0bc8 BB |
1698 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
1699 | struct mnttab entry; | |
34dc7c2f | 1700 | |
fb5f0bc8 BB |
1701 | if (libzfs_mnttab_find(hdl, zhp->zfs_name, &entry) == 0) { |
1702 | zhp->zfs_mntopts = zfs_strdup(hdl, | |
34dc7c2f BB |
1703 | entry.mnt_mntopts); |
1704 | if (zhp->zfs_mntopts == NULL) | |
1705 | return (-1); | |
1706 | } | |
1707 | ||
1708 | zhp->zfs_mntcheck = B_TRUE; | |
1709 | } | |
1710 | ||
1711 | if (zhp->zfs_mntopts == NULL) | |
1712 | mnt.mnt_mntopts = ""; | |
1713 | else | |
1714 | mnt.mnt_mntopts = zhp->zfs_mntopts; | |
1715 | ||
1716 | switch (prop) { | |
1717 | case ZFS_PROP_ATIME: | |
1718 | case ZFS_PROP_DEVICES: | |
1719 | case ZFS_PROP_EXEC: | |
1720 | case ZFS_PROP_READONLY: | |
1721 | case ZFS_PROP_SETUID: | |
1722 | case ZFS_PROP_XATTR: | |
1723 | case ZFS_PROP_NBMAND: | |
1724 | *val = getprop_uint64(zhp, prop, source); | |
1725 | ||
428870ff BB |
1726 | if (received) |
1727 | break; | |
1728 | ||
34dc7c2f BB |
1729 | if (hasmntopt(&mnt, mntopt_on) && !*val) { |
1730 | *val = B_TRUE; | |
1731 | if (src) | |
1732 | *src = ZPROP_SRC_TEMPORARY; | |
1733 | } else if (hasmntopt(&mnt, mntopt_off) && *val) { | |
1734 | *val = B_FALSE; | |
1735 | if (src) | |
1736 | *src = ZPROP_SRC_TEMPORARY; | |
1737 | } | |
1738 | break; | |
1739 | ||
1740 | case ZFS_PROP_CANMOUNT: | |
428870ff | 1741 | case ZFS_PROP_VOLSIZE: |
34dc7c2f BB |
1742 | case ZFS_PROP_QUOTA: |
1743 | case ZFS_PROP_REFQUOTA: | |
1744 | case ZFS_PROP_RESERVATION: | |
1745 | case ZFS_PROP_REFRESERVATION: | |
1746 | *val = getprop_uint64(zhp, prop, source); | |
428870ff BB |
1747 | |
1748 | if (*source == NULL) { | |
1749 | /* not default, must be local */ | |
34dc7c2f | 1750 | *source = zhp->zfs_name; |
428870ff | 1751 | } |
34dc7c2f BB |
1752 | break; |
1753 | ||
1754 | case ZFS_PROP_MOUNTED: | |
1755 | *val = (zhp->zfs_mntopts != NULL); | |
1756 | break; | |
1757 | ||
1758 | case ZFS_PROP_NUMCLONES: | |
1759 | *val = zhp->zfs_dmustats.dds_num_clones; | |
1760 | break; | |
1761 | ||
1762 | case ZFS_PROP_VERSION: | |
1763 | case ZFS_PROP_NORMALIZE: | |
1764 | case ZFS_PROP_UTF8ONLY: | |
1765 | case ZFS_PROP_CASE: | |
1766 | if (!zfs_prop_valid_for_type(prop, zhp->zfs_head_type) || | |
1767 | zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) | |
1768 | return (-1); | |
1769 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
1770 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_OBJSET_ZPLPROPS, &zc)) { | |
1771 | zcmd_free_nvlists(&zc); | |
45d1cae3 | 1772 | return (-1); |
34dc7c2f BB |
1773 | } |
1774 | if (zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &zplprops) != 0 || | |
1775 | nvlist_lookup_uint64(zplprops, zfs_prop_to_name(prop), | |
1776 | val) != 0) { | |
1777 | zcmd_free_nvlists(&zc); | |
45d1cae3 | 1778 | return (-1); |
34dc7c2f BB |
1779 | } |
1780 | if (zplprops) | |
1781 | nvlist_free(zplprops); | |
1782 | zcmd_free_nvlists(&zc); | |
1783 | break; | |
1784 | ||
1785 | default: | |
1786 | switch (zfs_prop_get_type(prop)) { | |
1787 | case PROP_TYPE_NUMBER: | |
1788 | case PROP_TYPE_INDEX: | |
1789 | *val = getprop_uint64(zhp, prop, source); | |
b128c09f | 1790 | /* |
9babb374 | 1791 | * If we tried to use a default value for a |
b128c09f | 1792 | * readonly property, it means that it was not |
428870ff | 1793 | * present. |
b128c09f BB |
1794 | */ |
1795 | if (zfs_prop_readonly(prop) && | |
428870ff BB |
1796 | *source != NULL && (*source)[0] == '\0') { |
1797 | *source = NULL; | |
b128c09f | 1798 | } |
34dc7c2f BB |
1799 | break; |
1800 | ||
1801 | case PROP_TYPE_STRING: | |
1802 | default: | |
1803 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
1804 | "cannot get non-numeric property")); | |
1805 | return (zfs_error(zhp->zfs_hdl, EZFS_BADPROP, | |
1806 | dgettext(TEXT_DOMAIN, "internal error"))); | |
1807 | } | |
1808 | } | |
1809 | ||
1810 | return (0); | |
1811 | } | |
1812 | ||
1813 | /* | |
1814 | * Calculate the source type, given the raw source string. | |
1815 | */ | |
1816 | static void | |
1817 | get_source(zfs_handle_t *zhp, zprop_source_t *srctype, char *source, | |
1818 | char *statbuf, size_t statlen) | |
1819 | { | |
1820 | if (statbuf == NULL || *srctype == ZPROP_SRC_TEMPORARY) | |
1821 | return; | |
1822 | ||
1823 | if (source == NULL) { | |
1824 | *srctype = ZPROP_SRC_NONE; | |
1825 | } else if (source[0] == '\0') { | |
1826 | *srctype = ZPROP_SRC_DEFAULT; | |
428870ff BB |
1827 | } else if (strstr(source, ZPROP_SOURCE_VAL_RECVD) != NULL) { |
1828 | *srctype = ZPROP_SRC_RECEIVED; | |
34dc7c2f BB |
1829 | } else { |
1830 | if (strcmp(source, zhp->zfs_name) == 0) { | |
1831 | *srctype = ZPROP_SRC_LOCAL; | |
1832 | } else { | |
1833 | (void) strlcpy(statbuf, source, statlen); | |
1834 | *srctype = ZPROP_SRC_INHERITED; | |
1835 | } | |
1836 | } | |
1837 | ||
1838 | } | |
1839 | ||
428870ff BB |
1840 | int |
1841 | zfs_prop_get_recvd(zfs_handle_t *zhp, const char *propname, char *propbuf, | |
1842 | size_t proplen, boolean_t literal) | |
1843 | { | |
1844 | zfs_prop_t prop; | |
1845 | int err = 0; | |
1846 | ||
1847 | if (zhp->zfs_recvd_props == NULL) | |
1848 | if (get_recvd_props_ioctl(zhp) != 0) | |
1849 | return (-1); | |
1850 | ||
1851 | prop = zfs_name_to_prop(propname); | |
1852 | ||
1853 | if (prop != ZPROP_INVAL) { | |
1854 | uint64_t cookie; | |
1855 | if (!nvlist_exists(zhp->zfs_recvd_props, propname)) | |
1856 | return (-1); | |
1857 | zfs_set_recvd_props_mode(zhp, &cookie); | |
1858 | err = zfs_prop_get(zhp, prop, propbuf, proplen, | |
1859 | NULL, NULL, 0, literal); | |
1860 | zfs_unset_recvd_props_mode(zhp, &cookie); | |
1861 | } else if (zfs_prop_userquota(propname)) { | |
1862 | return (-1); | |
1863 | } else { | |
1864 | nvlist_t *propval; | |
1865 | char *recvdval; | |
1866 | if (nvlist_lookup_nvlist(zhp->zfs_recvd_props, | |
1867 | propname, &propval) != 0) | |
1868 | return (-1); | |
1869 | verify(nvlist_lookup_string(propval, ZPROP_VALUE, | |
1870 | &recvdval) == 0); | |
1871 | (void) strlcpy(propbuf, recvdval, proplen); | |
1872 | } | |
1873 | ||
1874 | return (err == 0 ? 0 : -1); | |
1875 | } | |
1876 | ||
34dc7c2f BB |
1877 | /* |
1878 | * Retrieve a property from the given object. If 'literal' is specified, then | |
1879 | * numbers are left as exact values. Otherwise, numbers are converted to a | |
1880 | * human-readable form. | |
1881 | * | |
1882 | * Returns 0 on success, or -1 on error. | |
1883 | */ | |
1884 | int | |
1885 | zfs_prop_get(zfs_handle_t *zhp, zfs_prop_t prop, char *propbuf, size_t proplen, | |
1886 | zprop_source_t *src, char *statbuf, size_t statlen, boolean_t literal) | |
1887 | { | |
1888 | char *source = NULL; | |
1889 | uint64_t val; | |
1890 | char *str; | |
34dc7c2f | 1891 | const char *strval; |
428870ff | 1892 | boolean_t received = zfs_is_recvd_props_mode(zhp); |
34dc7c2f BB |
1893 | |
1894 | /* | |
1895 | * Check to see if this property applies to our object | |
1896 | */ | |
1897 | if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) | |
1898 | return (-1); | |
1899 | ||
428870ff BB |
1900 | if (received && zfs_prop_readonly(prop)) |
1901 | return (-1); | |
1902 | ||
34dc7c2f BB |
1903 | if (src) |
1904 | *src = ZPROP_SRC_NONE; | |
1905 | ||
1906 | switch (prop) { | |
1907 | case ZFS_PROP_CREATION: | |
1908 | /* | |
1909 | * 'creation' is a time_t stored in the statistics. We convert | |
1910 | * this into a string unless 'literal' is specified. | |
1911 | */ | |
1912 | { | |
1913 | val = getprop_uint64(zhp, prop, &source); | |
1914 | time_t time = (time_t)val; | |
1915 | struct tm t; | |
1916 | ||
1917 | if (literal || | |
1918 | localtime_r(&time, &t) == NULL || | |
1919 | strftime(propbuf, proplen, "%a %b %e %k:%M %Y", | |
1920 | &t) == 0) | |
b8864a23 | 1921 | (void) snprintf(propbuf, proplen, "%llu", (u_longlong_t) val); |
34dc7c2f BB |
1922 | } |
1923 | break; | |
1924 | ||
1925 | case ZFS_PROP_MOUNTPOINT: | |
1926 | /* | |
1927 | * Getting the precise mountpoint can be tricky. | |
1928 | * | |
1929 | * - for 'none' or 'legacy', return those values. | |
34dc7c2f BB |
1930 | * - for inherited mountpoints, we want to take everything |
1931 | * after our ancestor and append it to the inherited value. | |
1932 | * | |
1933 | * If the pool has an alternate root, we want to prepend that | |
1934 | * root to any values we return. | |
1935 | */ | |
b128c09f | 1936 | |
34dc7c2f BB |
1937 | str = getprop_string(zhp, prop, &source); |
1938 | ||
b128c09f BB |
1939 | if (str[0] == '/') { |
1940 | char buf[MAXPATHLEN]; | |
1941 | char *root = buf; | |
428870ff | 1942 | const char *relpath; |
34dc7c2f | 1943 | |
428870ff BB |
1944 | /* |
1945 | * If we inherit the mountpoint, even from a dataset | |
1946 | * with a received value, the source will be the path of | |
1947 | * the dataset we inherit from. If source is | |
1948 | * ZPROP_SOURCE_VAL_RECVD, the received value is not | |
1949 | * inherited. | |
1950 | */ | |
1951 | if (strcmp(source, ZPROP_SOURCE_VAL_RECVD) == 0) { | |
1952 | relpath = ""; | |
1953 | } else { | |
1954 | relpath = zhp->zfs_name + strlen(source); | |
1955 | if (relpath[0] == '/') | |
1956 | relpath++; | |
1957 | } | |
b128c09f BB |
1958 | |
1959 | if ((zpool_get_prop(zhp->zpool_hdl, | |
1960 | ZPOOL_PROP_ALTROOT, buf, MAXPATHLEN, NULL)) || | |
1961 | (strcmp(root, "-") == 0)) | |
1962 | root[0] = '\0'; | |
1963 | /* | |
1964 | * Special case an alternate root of '/'. This will | |
1965 | * avoid having multiple leading slashes in the | |
1966 | * mountpoint path. | |
1967 | */ | |
1968 | if (strcmp(root, "/") == 0) | |
1969 | root++; | |
1970 | ||
1971 | /* | |
1972 | * If the mountpoint is '/' then skip over this | |
1973 | * if we are obtaining either an alternate root or | |
1974 | * an inherited mountpoint. | |
1975 | */ | |
1976 | if (str[1] == '\0' && (root[0] != '\0' || | |
1977 | relpath[0] != '\0')) | |
34dc7c2f BB |
1978 | str++; |
1979 | ||
1980 | if (relpath[0] == '\0') | |
1981 | (void) snprintf(propbuf, proplen, "%s%s", | |
1982 | root, str); | |
1983 | else | |
1984 | (void) snprintf(propbuf, proplen, "%s%s%s%s", | |
1985 | root, str, relpath[0] == '@' ? "" : "/", | |
1986 | relpath); | |
1987 | } else { | |
1988 | /* 'legacy' or 'none' */ | |
1989 | (void) strlcpy(propbuf, str, proplen); | |
1990 | } | |
1991 | ||
1992 | break; | |
1993 | ||
1994 | case ZFS_PROP_ORIGIN: | |
1995 | (void) strlcpy(propbuf, getprop_string(zhp, prop, &source), | |
1996 | proplen); | |
1997 | /* | |
1998 | * If there is no parent at all, return failure to indicate that | |
1999 | * it doesn't apply to this dataset. | |
2000 | */ | |
2001 | if (propbuf[0] == '\0') | |
2002 | return (-1); | |
2003 | break; | |
2004 | ||
2005 | case ZFS_PROP_QUOTA: | |
2006 | case ZFS_PROP_REFQUOTA: | |
2007 | case ZFS_PROP_RESERVATION: | |
2008 | case ZFS_PROP_REFRESERVATION: | |
2009 | ||
2010 | if (get_numeric_property(zhp, prop, src, &source, &val) != 0) | |
2011 | return (-1); | |
2012 | ||
2013 | /* | |
2014 | * If quota or reservation is 0, we translate this into 'none' | |
2015 | * (unless literal is set), and indicate that it's the default | |
2016 | * value. Otherwise, we print the number nicely and indicate | |
2017 | * that its set locally. | |
2018 | */ | |
2019 | if (val == 0) { | |
2020 | if (literal) | |
2021 | (void) strlcpy(propbuf, "0", proplen); | |
2022 | else | |
2023 | (void) strlcpy(propbuf, "none", proplen); | |
2024 | } else { | |
2025 | if (literal) | |
2026 | (void) snprintf(propbuf, proplen, "%llu", | |
2027 | (u_longlong_t)val); | |
2028 | else | |
2029 | zfs_nicenum(val, propbuf, proplen); | |
2030 | } | |
2031 | break; | |
2032 | ||
2033 | case ZFS_PROP_COMPRESSRATIO: | |
2034 | if (get_numeric_property(zhp, prop, src, &source, &val) != 0) | |
2035 | return (-1); | |
428870ff BB |
2036 | (void) snprintf(propbuf, proplen, "%llu.%02llux", |
2037 | (u_longlong_t)(val / 100), | |
2038 | (u_longlong_t)(val % 100)); | |
34dc7c2f BB |
2039 | break; |
2040 | ||
2041 | case ZFS_PROP_TYPE: | |
2042 | switch (zhp->zfs_type) { | |
2043 | case ZFS_TYPE_FILESYSTEM: | |
2044 | str = "filesystem"; | |
2045 | break; | |
2046 | case ZFS_TYPE_VOLUME: | |
2047 | str = "volume"; | |
2048 | break; | |
2049 | case ZFS_TYPE_SNAPSHOT: | |
2050 | str = "snapshot"; | |
2051 | break; | |
2052 | default: | |
2053 | abort(); | |
2054 | } | |
2055 | (void) snprintf(propbuf, proplen, "%s", str); | |
2056 | break; | |
2057 | ||
2058 | case ZFS_PROP_MOUNTED: | |
2059 | /* | |
2060 | * The 'mounted' property is a pseudo-property that described | |
2061 | * whether the filesystem is currently mounted. Even though | |
2062 | * it's a boolean value, the typical values of "on" and "off" | |
2063 | * don't make sense, so we translate to "yes" and "no". | |
2064 | */ | |
2065 | if (get_numeric_property(zhp, ZFS_PROP_MOUNTED, | |
2066 | src, &source, &val) != 0) | |
2067 | return (-1); | |
2068 | if (val) | |
2069 | (void) strlcpy(propbuf, "yes", proplen); | |
2070 | else | |
2071 | (void) strlcpy(propbuf, "no", proplen); | |
2072 | break; | |
2073 | ||
2074 | case ZFS_PROP_NAME: | |
2075 | /* | |
2076 | * The 'name' property is a pseudo-property derived from the | |
2077 | * dataset name. It is presented as a real property to simplify | |
2078 | * consumers. | |
2079 | */ | |
2080 | (void) strlcpy(propbuf, zhp->zfs_name, proplen); | |
2081 | break; | |
2082 | ||
428870ff BB |
2083 | case ZFS_PROP_MLSLABEL: |
2084 | { | |
2085 | m_label_t *new_sl = NULL; | |
2086 | char *ascii = NULL; /* human readable label */ | |
2087 | ||
2088 | (void) strlcpy(propbuf, | |
2089 | getprop_string(zhp, prop, &source), proplen); | |
2090 | ||
2091 | if (literal || (strcasecmp(propbuf, | |
2092 | ZFS_MLSLABEL_DEFAULT) == 0)) | |
2093 | break; | |
2094 | ||
2095 | /* | |
2096 | * Try to translate the internal hex string to | |
2097 | * human-readable output. If there are any | |
2098 | * problems just use the hex string. | |
2099 | */ | |
2100 | ||
2101 | if (str_to_label(propbuf, &new_sl, MAC_LABEL, | |
2102 | L_NO_CORRECTION, NULL) == -1) { | |
2103 | m_label_free(new_sl); | |
2104 | break; | |
2105 | } | |
2106 | ||
2107 | if (label_to_str(new_sl, &ascii, M_LABEL, | |
2108 | DEF_NAMES) != 0) { | |
2109 | if (ascii) | |
2110 | free(ascii); | |
2111 | m_label_free(new_sl); | |
2112 | break; | |
2113 | } | |
2114 | m_label_free(new_sl); | |
2115 | ||
2116 | (void) strlcpy(propbuf, ascii, proplen); | |
2117 | free(ascii); | |
2118 | } | |
2119 | break; | |
2120 | ||
34dc7c2f BB |
2121 | default: |
2122 | switch (zfs_prop_get_type(prop)) { | |
2123 | case PROP_TYPE_NUMBER: | |
2124 | if (get_numeric_property(zhp, prop, src, | |
2125 | &source, &val) != 0) | |
2126 | return (-1); | |
2127 | if (literal) | |
2128 | (void) snprintf(propbuf, proplen, "%llu", | |
2129 | (u_longlong_t)val); | |
2130 | else | |
2131 | zfs_nicenum(val, propbuf, proplen); | |
2132 | break; | |
2133 | ||
2134 | case PROP_TYPE_STRING: | |
2135 | (void) strlcpy(propbuf, | |
2136 | getprop_string(zhp, prop, &source), proplen); | |
2137 | break; | |
2138 | ||
2139 | case PROP_TYPE_INDEX: | |
2140 | if (get_numeric_property(zhp, prop, src, | |
2141 | &source, &val) != 0) | |
2142 | return (-1); | |
2143 | if (zfs_prop_index_to_string(prop, val, &strval) != 0) | |
2144 | return (-1); | |
2145 | (void) strlcpy(propbuf, strval, proplen); | |
2146 | break; | |
2147 | ||
2148 | default: | |
2149 | abort(); | |
2150 | } | |
2151 | } | |
2152 | ||
2153 | get_source(zhp, src, source, statbuf, statlen); | |
2154 | ||
2155 | return (0); | |
2156 | } | |
2157 | ||
2158 | /* | |
2159 | * Utility function to get the given numeric property. Does no validation that | |
2160 | * the given property is the appropriate type; should only be used with | |
2161 | * hard-coded property types. | |
2162 | */ | |
2163 | uint64_t | |
2164 | zfs_prop_get_int(zfs_handle_t *zhp, zfs_prop_t prop) | |
2165 | { | |
2166 | char *source; | |
2167 | uint64_t val; | |
2168 | ||
2169 | (void) get_numeric_property(zhp, prop, NULL, &source, &val); | |
2170 | ||
2171 | return (val); | |
2172 | } | |
2173 | ||
2174 | int | |
2175 | zfs_prop_set_int(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t val) | |
2176 | { | |
2177 | char buf[64]; | |
2178 | ||
9babb374 | 2179 | (void) snprintf(buf, sizeof (buf), "%llu", (longlong_t)val); |
34dc7c2f BB |
2180 | return (zfs_prop_set(zhp, zfs_prop_to_name(prop), buf)); |
2181 | } | |
2182 | ||
2183 | /* | |
2184 | * Similar to zfs_prop_get(), but returns the value as an integer. | |
2185 | */ | |
2186 | int | |
2187 | zfs_prop_get_numeric(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t *value, | |
2188 | zprop_source_t *src, char *statbuf, size_t statlen) | |
2189 | { | |
2190 | char *source; | |
2191 | ||
2192 | /* | |
2193 | * Check to see if this property applies to our object | |
2194 | */ | |
2195 | if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) { | |
2196 | return (zfs_error_fmt(zhp->zfs_hdl, EZFS_PROPTYPE, | |
2197 | dgettext(TEXT_DOMAIN, "cannot get property '%s'"), | |
2198 | zfs_prop_to_name(prop))); | |
2199 | } | |
2200 | ||
2201 | if (src) | |
2202 | *src = ZPROP_SRC_NONE; | |
2203 | ||
2204 | if (get_numeric_property(zhp, prop, src, &source, value) != 0) | |
2205 | return (-1); | |
2206 | ||
2207 | get_source(zhp, src, source, statbuf, statlen); | |
2208 | ||
2209 | return (0); | |
2210 | } | |
2211 | ||
9babb374 BB |
2212 | static int |
2213 | idmap_id_to_numeric_domain_rid(uid_t id, boolean_t isuser, | |
2214 | char **domainp, idmap_rid_t *ridp) | |
2215 | { | |
9babb374 BB |
2216 | idmap_get_handle_t *get_hdl = NULL; |
2217 | idmap_stat status; | |
2218 | int err = EINVAL; | |
2219 | ||
572e2857 | 2220 | if (idmap_get_create(&get_hdl) != IDMAP_SUCCESS) |
9babb374 BB |
2221 | goto out; |
2222 | ||
2223 | if (isuser) { | |
2224 | err = idmap_get_sidbyuid(get_hdl, id, | |
2225 | IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); | |
2226 | } else { | |
2227 | err = idmap_get_sidbygid(get_hdl, id, | |
2228 | IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); | |
2229 | } | |
2230 | if (err == IDMAP_SUCCESS && | |
2231 | idmap_get_mappings(get_hdl) == IDMAP_SUCCESS && | |
2232 | status == IDMAP_SUCCESS) | |
2233 | err = 0; | |
2234 | else | |
2235 | err = EINVAL; | |
2236 | out: | |
2237 | if (get_hdl) | |
2238 | idmap_get_destroy(get_hdl); | |
9babb374 BB |
2239 | return (err); |
2240 | } | |
2241 | ||
2242 | /* | |
2243 | * convert the propname into parameters needed by kernel | |
2244 | * Eg: userquota@ahrens -> ZFS_PROP_USERQUOTA, "", 126829 | |
2245 | * Eg: userused@matt@domain -> ZFS_PROP_USERUSED, "S-1-123-456", 789 | |
2246 | */ | |
2247 | static int | |
2248 | userquota_propname_decode(const char *propname, boolean_t zoned, | |
2249 | zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp) | |
2250 | { | |
2251 | zfs_userquota_prop_t type; | |
2252 | char *cp, *end; | |
45d1cae3 | 2253 | char *numericsid = NULL; |
9babb374 BB |
2254 | boolean_t isuser; |
2255 | ||
2256 | domain[0] = '\0'; | |
2257 | ||
2258 | /* Figure out the property type ({user|group}{quota|space}) */ | |
2259 | for (type = 0; type < ZFS_NUM_USERQUOTA_PROPS; type++) { | |
2260 | if (strncmp(propname, zfs_userquota_prop_prefixes[type], | |
2261 | strlen(zfs_userquota_prop_prefixes[type])) == 0) | |
2262 | break; | |
2263 | } | |
2264 | if (type == ZFS_NUM_USERQUOTA_PROPS) | |
2265 | return (EINVAL); | |
2266 | *typep = type; | |
2267 | ||
2268 | isuser = (type == ZFS_PROP_USERQUOTA || | |
2269 | type == ZFS_PROP_USERUSED); | |
2270 | ||
2271 | cp = strchr(propname, '@') + 1; | |
2272 | ||
2273 | if (strchr(cp, '@')) { | |
2274 | /* | |
2275 | * It's a SID name (eg "user@domain") that needs to be | |
45d1cae3 | 2276 | * turned into S-1-domainID-RID. |
9babb374 | 2277 | */ |
45d1cae3 | 2278 | directory_error_t e; |
9babb374 BB |
2279 | if (zoned && getzoneid() == GLOBAL_ZONEID) |
2280 | return (ENOENT); | |
45d1cae3 BB |
2281 | if (isuser) { |
2282 | e = directory_sid_from_user_name(NULL, | |
2283 | cp, &numericsid); | |
2284 | } else { | |
2285 | e = directory_sid_from_group_name(NULL, | |
2286 | cp, &numericsid); | |
2287 | } | |
2288 | if (e != NULL) { | |
2289 | directory_error_free(e); | |
9babb374 | 2290 | return (ENOENT); |
45d1cae3 BB |
2291 | } |
2292 | if (numericsid == NULL) | |
9babb374 | 2293 | return (ENOENT); |
45d1cae3 BB |
2294 | cp = numericsid; |
2295 | /* will be further decoded below */ | |
2296 | } | |
2297 | ||
2298 | if (strncmp(cp, "S-1-", 4) == 0) { | |
9babb374 | 2299 | /* It's a numeric SID (eg "S-1-234-567-89") */ |
45d1cae3 | 2300 | (void) strlcpy(domain, cp, domainlen); |
9babb374 BB |
2301 | cp = strrchr(domain, '-'); |
2302 | *cp = '\0'; | |
2303 | cp++; | |
2304 | ||
2305 | errno = 0; | |
2306 | *ridp = strtoull(cp, &end, 10); | |
45d1cae3 BB |
2307 | if (numericsid) { |
2308 | free(numericsid); | |
2309 | numericsid = NULL; | |
2310 | } | |
9babb374 BB |
2311 | if (errno != 0 || *end != '\0') |
2312 | return (EINVAL); | |
2313 | } else if (!isdigit(*cp)) { | |
2314 | /* | |
2315 | * It's a user/group name (eg "user") that needs to be | |
2316 | * turned into a uid/gid | |
2317 | */ | |
2318 | if (zoned && getzoneid() == GLOBAL_ZONEID) | |
2319 | return (ENOENT); | |
2320 | if (isuser) { | |
2321 | struct passwd *pw; | |
2322 | pw = getpwnam(cp); | |
2323 | if (pw == NULL) | |
2324 | return (ENOENT); | |
2325 | *ridp = pw->pw_uid; | |
2326 | } else { | |
2327 | struct group *gr; | |
2328 | gr = getgrnam(cp); | |
2329 | if (gr == NULL) | |
2330 | return (ENOENT); | |
2331 | *ridp = gr->gr_gid; | |
2332 | } | |
2333 | } else { | |
2334 | /* It's a user/group ID (eg "12345"). */ | |
2335 | uid_t id = strtoul(cp, &end, 10); | |
2336 | idmap_rid_t rid; | |
2337 | char *mapdomain; | |
2338 | ||
2339 | if (*end != '\0') | |
2340 | return (EINVAL); | |
2341 | if (id > MAXUID) { | |
2342 | /* It's an ephemeral ID. */ | |
2343 | if (idmap_id_to_numeric_domain_rid(id, isuser, | |
2344 | &mapdomain, &rid) != 0) | |
2345 | return (ENOENT); | |
45d1cae3 | 2346 | (void) strlcpy(domain, mapdomain, domainlen); |
9babb374 BB |
2347 | *ridp = rid; |
2348 | } else { | |
2349 | *ridp = id; | |
2350 | } | |
2351 | } | |
2352 | ||
45d1cae3 | 2353 | ASSERT3P(numericsid, ==, NULL); |
9babb374 BB |
2354 | return (0); |
2355 | } | |
2356 | ||
2357 | static int | |
2358 | zfs_prop_get_userquota_common(zfs_handle_t *zhp, const char *propname, | |
2359 | uint64_t *propvalue, zfs_userquota_prop_t *typep) | |
2360 | { | |
2361 | int err; | |
2598c001 | 2362 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
9babb374 BB |
2363 | |
2364 | (void) strncpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
2365 | ||
2366 | err = userquota_propname_decode(propname, | |
2367 | zfs_prop_get_int(zhp, ZFS_PROP_ZONED), | |
2368 | typep, zc.zc_value, sizeof (zc.zc_value), &zc.zc_guid); | |
2369 | zc.zc_objset_type = *typep; | |
2370 | if (err) | |
2371 | return (err); | |
2372 | ||
2373 | err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_USERSPACE_ONE, &zc); | |
2374 | if (err) | |
2375 | return (err); | |
2376 | ||
2377 | *propvalue = zc.zc_cookie; | |
2378 | return (0); | |
2379 | } | |
2380 | ||
2381 | int | |
2382 | zfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname, | |
2383 | uint64_t *propvalue) | |
2384 | { | |
2385 | zfs_userquota_prop_t type; | |
2386 | ||
2387 | return (zfs_prop_get_userquota_common(zhp, propname, propvalue, | |
2388 | &type)); | |
2389 | } | |
2390 | ||
2391 | int | |
2392 | zfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname, | |
2393 | char *propbuf, int proplen, boolean_t literal) | |
2394 | { | |
2395 | int err; | |
2396 | uint64_t propvalue; | |
2397 | zfs_userquota_prop_t type; | |
2398 | ||
2399 | err = zfs_prop_get_userquota_common(zhp, propname, &propvalue, | |
2400 | &type); | |
2401 | ||
2402 | if (err) | |
2403 | return (err); | |
2404 | ||
2405 | if (literal) { | |
b8864a23 BB |
2406 | (void) snprintf(propbuf, proplen, "%llu", |
2407 | (u_longlong_t)propvalue); | |
9babb374 BB |
2408 | } else if (propvalue == 0 && |
2409 | (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_GROUPQUOTA)) { | |
2410 | (void) strlcpy(propbuf, "none", proplen); | |
2411 | } else { | |
2412 | zfs_nicenum(propvalue, propbuf, proplen); | |
2413 | } | |
2414 | return (0); | |
2415 | } | |
2416 | ||
34dc7c2f BB |
2417 | /* |
2418 | * Returns the name of the given zfs handle. | |
2419 | */ | |
2420 | const char * | |
2421 | zfs_get_name(const zfs_handle_t *zhp) | |
2422 | { | |
2423 | return (zhp->zfs_name); | |
2424 | } | |
2425 | ||
2426 | /* | |
2427 | * Returns the type of the given zfs handle. | |
2428 | */ | |
2429 | zfs_type_t | |
2430 | zfs_get_type(const zfs_handle_t *zhp) | |
2431 | { | |
2432 | return (zhp->zfs_type); | |
2433 | } | |
2434 | ||
fb5f0bc8 BB |
2435 | static int |
2436 | zfs_do_list_ioctl(zfs_handle_t *zhp, int arg, zfs_cmd_t *zc) | |
2437 | { | |
2438 | int rc; | |
2439 | uint64_t orig_cookie; | |
2440 | ||
2441 | orig_cookie = zc->zc_cookie; | |
2442 | top: | |
2443 | (void) strlcpy(zc->zc_name, zhp->zfs_name, sizeof (zc->zc_name)); | |
2444 | rc = ioctl(zhp->zfs_hdl->libzfs_fd, arg, zc); | |
2445 | ||
2446 | if (rc == -1) { | |
2447 | switch (errno) { | |
2448 | case ENOMEM: | |
2449 | /* expand nvlist memory and try again */ | |
2450 | if (zcmd_expand_dst_nvlist(zhp->zfs_hdl, zc) != 0) { | |
2451 | zcmd_free_nvlists(zc); | |
2452 | return (-1); | |
2453 | } | |
2454 | zc->zc_cookie = orig_cookie; | |
2455 | goto top; | |
2456 | /* | |
2457 | * An errno value of ESRCH indicates normal completion. | |
2458 | * If ENOENT is returned, then the underlying dataset | |
2459 | * has been removed since we obtained the handle. | |
2460 | */ | |
2461 | case ESRCH: | |
2462 | case ENOENT: | |
2463 | rc = 1; | |
2464 | break; | |
2465 | default: | |
2466 | rc = zfs_standard_error(zhp->zfs_hdl, errno, | |
2467 | dgettext(TEXT_DOMAIN, | |
2468 | "cannot iterate filesystems")); | |
2469 | break; | |
2470 | } | |
2471 | } | |
2472 | return (rc); | |
2473 | } | |
2474 | ||
34dc7c2f BB |
2475 | /* |
2476 | * Iterate over all child filesystems | |
2477 | */ | |
2478 | int | |
2479 | zfs_iter_filesystems(zfs_handle_t *zhp, zfs_iter_f func, void *data) | |
2480 | { | |
2598c001 | 2481 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
2482 | zfs_handle_t *nzhp; |
2483 | int ret; | |
2484 | ||
2485 | if (zhp->zfs_type != ZFS_TYPE_FILESYSTEM) | |
2486 | return (0); | |
2487 | ||
fb5f0bc8 BB |
2488 | if (zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) |
2489 | return (-1); | |
2490 | ||
2491 | while ((ret = zfs_do_list_ioctl(zhp, ZFS_IOC_DATASET_LIST_NEXT, | |
2492 | &zc)) == 0) { | |
34dc7c2f BB |
2493 | /* |
2494 | * Silently ignore errors, as the only plausible explanation is | |
2495 | * that the pool has since been removed. | |
2496 | */ | |
fb5f0bc8 BB |
2497 | if ((nzhp = make_dataset_handle_zc(zhp->zfs_hdl, |
2498 | &zc)) == NULL) { | |
34dc7c2f | 2499 | continue; |
fb5f0bc8 | 2500 | } |
34dc7c2f | 2501 | |
fb5f0bc8 BB |
2502 | if ((ret = func(nzhp, data)) != 0) { |
2503 | zcmd_free_nvlists(&zc); | |
34dc7c2f | 2504 | return (ret); |
fb5f0bc8 | 2505 | } |
34dc7c2f | 2506 | } |
fb5f0bc8 BB |
2507 | zcmd_free_nvlists(&zc); |
2508 | return ((ret < 0) ? ret : 0); | |
34dc7c2f BB |
2509 | } |
2510 | ||
2511 | /* | |
2512 | * Iterate over all snapshots | |
2513 | */ | |
2514 | int | |
2515 | zfs_iter_snapshots(zfs_handle_t *zhp, zfs_iter_f func, void *data) | |
2516 | { | |
2598c001 | 2517 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
2518 | zfs_handle_t *nzhp; |
2519 | int ret; | |
2520 | ||
2521 | if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) | |
2522 | return (0); | |
2523 | ||
fb5f0bc8 BB |
2524 | if (zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) |
2525 | return (-1); | |
2526 | while ((ret = zfs_do_list_ioctl(zhp, ZFS_IOC_SNAPSHOT_LIST_NEXT, | |
2527 | &zc)) == 0) { | |
34dc7c2f | 2528 | |
fb5f0bc8 BB |
2529 | if ((nzhp = make_dataset_handle_zc(zhp->zfs_hdl, |
2530 | &zc)) == NULL) { | |
34dc7c2f | 2531 | continue; |
fb5f0bc8 | 2532 | } |
34dc7c2f | 2533 | |
fb5f0bc8 BB |
2534 | if ((ret = func(nzhp, data)) != 0) { |
2535 | zcmd_free_nvlists(&zc); | |
34dc7c2f | 2536 | return (ret); |
fb5f0bc8 | 2537 | } |
34dc7c2f | 2538 | } |
fb5f0bc8 BB |
2539 | zcmd_free_nvlists(&zc); |
2540 | return ((ret < 0) ? ret : 0); | |
34dc7c2f BB |
2541 | } |
2542 | ||
2543 | /* | |
2544 | * Iterate over all children, snapshots and filesystems | |
2545 | */ | |
2546 | int | |
2547 | zfs_iter_children(zfs_handle_t *zhp, zfs_iter_f func, void *data) | |
2548 | { | |
2549 | int ret; | |
2550 | ||
2551 | if ((ret = zfs_iter_filesystems(zhp, func, data)) != 0) | |
2552 | return (ret); | |
2553 | ||
2554 | return (zfs_iter_snapshots(zhp, func, data)); | |
2555 | } | |
2556 | ||
428870ff BB |
2557 | /* |
2558 | * Is one dataset name a child dataset of another? | |
2559 | * | |
2560 | * Needs to handle these cases: | |
2561 | * Dataset 1 "a/foo" "a/foo" "a/foo" "a/foo" | |
2562 | * Dataset 2 "a/fo" "a/foobar" "a/bar/baz" "a/foo/bar" | |
2563 | * Descendant? No. No. No. Yes. | |
2564 | */ | |
2565 | static boolean_t | |
2566 | is_descendant(const char *ds1, const char *ds2) | |
2567 | { | |
2568 | size_t d1len = strlen(ds1); | |
2569 | ||
2570 | /* ds2 can't be a descendant if it's smaller */ | |
2571 | if (strlen(ds2) < d1len) | |
2572 | return (B_FALSE); | |
2573 | ||
2574 | /* otherwise, compare strings and verify that there's a '/' char */ | |
2575 | return (ds2[d1len] == '/' && (strncmp(ds1, ds2, d1len) == 0)); | |
2576 | } | |
2577 | ||
34dc7c2f BB |
2578 | /* |
2579 | * Given a complete name, return just the portion that refers to the parent. | |
2580 | * Can return NULL if this is a pool. | |
2581 | */ | |
2582 | static int | |
2583 | parent_name(const char *path, char *buf, size_t buflen) | |
2584 | { | |
2585 | char *loc; | |
2586 | ||
2587 | if ((loc = strrchr(path, '/')) == NULL) | |
2588 | return (-1); | |
2589 | ||
2590 | (void) strncpy(buf, path, MIN(buflen, loc - path)); | |
2591 | buf[loc - path] = '\0'; | |
2592 | ||
2593 | return (0); | |
2594 | } | |
2595 | ||
2596 | /* | |
2597 | * If accept_ancestor is false, then check to make sure that the given path has | |
2598 | * a parent, and that it exists. If accept_ancestor is true, then find the | |
2599 | * closest existing ancestor for the given path. In prefixlen return the | |
2600 | * length of already existing prefix of the given path. We also fetch the | |
2601 | * 'zoned' property, which is used to validate property settings when creating | |
2602 | * new datasets. | |
2603 | */ | |
2604 | static int | |
2605 | check_parents(libzfs_handle_t *hdl, const char *path, uint64_t *zoned, | |
2606 | boolean_t accept_ancestor, int *prefixlen) | |
2607 | { | |
2598c001 | 2608 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
2609 | char parent[ZFS_MAXNAMELEN]; |
2610 | char *slash; | |
2611 | zfs_handle_t *zhp; | |
2612 | char errbuf[1024]; | |
428870ff | 2613 | uint64_t is_zoned; |
34dc7c2f | 2614 | |
fb5f0bc8 BB |
2615 | (void) snprintf(errbuf, sizeof (errbuf), |
2616 | dgettext(TEXT_DOMAIN, "cannot create '%s'"), path); | |
34dc7c2f BB |
2617 | |
2618 | /* get parent, and check to see if this is just a pool */ | |
2619 | if (parent_name(path, parent, sizeof (parent)) != 0) { | |
2620 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2621 | "missing dataset name")); | |
2622 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
2623 | } | |
2624 | ||
2625 | /* check to see if the pool exists */ | |
2626 | if ((slash = strchr(parent, '/')) == NULL) | |
2627 | slash = parent + strlen(parent); | |
2628 | (void) strncpy(zc.zc_name, parent, slash - parent); | |
2629 | zc.zc_name[slash - parent] = '\0'; | |
2630 | if (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, &zc) != 0 && | |
2631 | errno == ENOENT) { | |
2632 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2633 | "no such pool '%s'"), zc.zc_name); | |
2634 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
2635 | } | |
2636 | ||
2637 | /* check to see if the parent dataset exists */ | |
2638 | while ((zhp = make_dataset_handle(hdl, parent)) == NULL) { | |
2639 | if (errno == ENOENT && accept_ancestor) { | |
2640 | /* | |
2641 | * Go deeper to find an ancestor, give up on top level. | |
2642 | */ | |
2643 | if (parent_name(parent, parent, sizeof (parent)) != 0) { | |
2644 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2645 | "no such pool '%s'"), zc.zc_name); | |
2646 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
2647 | } | |
2648 | } else if (errno == ENOENT) { | |
2649 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2650 | "parent does not exist")); | |
2651 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
2652 | } else | |
2653 | return (zfs_standard_error(hdl, errno, errbuf)); | |
2654 | } | |
2655 | ||
428870ff BB |
2656 | is_zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); |
2657 | if (zoned != NULL) | |
2658 | *zoned = is_zoned; | |
2659 | ||
34dc7c2f | 2660 | /* we are in a non-global zone, but parent is in the global zone */ |
428870ff | 2661 | if (getzoneid() != GLOBAL_ZONEID && !is_zoned) { |
34dc7c2f BB |
2662 | (void) zfs_standard_error(hdl, EPERM, errbuf); |
2663 | zfs_close(zhp); | |
2664 | return (-1); | |
2665 | } | |
2666 | ||
2667 | /* make sure parent is a filesystem */ | |
2668 | if (zfs_get_type(zhp) != ZFS_TYPE_FILESYSTEM) { | |
2669 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2670 | "parent is not a filesystem")); | |
2671 | (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); | |
2672 | zfs_close(zhp); | |
2673 | return (-1); | |
2674 | } | |
2675 | ||
2676 | zfs_close(zhp); | |
2677 | if (prefixlen != NULL) | |
2678 | *prefixlen = strlen(parent); | |
2679 | return (0); | |
2680 | } | |
2681 | ||
2682 | /* | |
2683 | * Finds whether the dataset of the given type(s) exists. | |
2684 | */ | |
2685 | boolean_t | |
2686 | zfs_dataset_exists(libzfs_handle_t *hdl, const char *path, zfs_type_t types) | |
2687 | { | |
2688 | zfs_handle_t *zhp; | |
2689 | ||
2690 | if (!zfs_validate_name(hdl, path, types, B_FALSE)) | |
2691 | return (B_FALSE); | |
2692 | ||
2693 | /* | |
2694 | * Try to get stats for the dataset, which will tell us if it exists. | |
2695 | */ | |
2696 | if ((zhp = make_dataset_handle(hdl, path)) != NULL) { | |
2697 | int ds_type = zhp->zfs_type; | |
2698 | ||
2699 | zfs_close(zhp); | |
2700 | if (types & ds_type) | |
2701 | return (B_TRUE); | |
2702 | } | |
2703 | return (B_FALSE); | |
2704 | } | |
2705 | ||
2706 | /* | |
2707 | * Given a path to 'target', create all the ancestors between | |
2708 | * the prefixlen portion of the path, and the target itself. | |
2709 | * Fail if the initial prefixlen-ancestor does not already exist. | |
2710 | */ | |
2711 | int | |
2712 | create_parents(libzfs_handle_t *hdl, char *target, int prefixlen) | |
2713 | { | |
2714 | zfs_handle_t *h; | |
2715 | char *cp; | |
2716 | const char *opname; | |
2717 | ||
2718 | /* make sure prefix exists */ | |
2719 | cp = target + prefixlen; | |
2720 | if (*cp != '/') { | |
2721 | assert(strchr(cp, '/') == NULL); | |
2722 | h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); | |
2723 | } else { | |
2724 | *cp = '\0'; | |
2725 | h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); | |
2726 | *cp = '/'; | |
2727 | } | |
2728 | if (h == NULL) | |
2729 | return (-1); | |
2730 | zfs_close(h); | |
2731 | ||
2732 | /* | |
2733 | * Attempt to create, mount, and share any ancestor filesystems, | |
2734 | * up to the prefixlen-long one. | |
2735 | */ | |
2736 | for (cp = target + prefixlen + 1; | |
c65aa5b2 | 2737 | (cp = strchr(cp, '/')); *cp = '/', cp++) { |
34dc7c2f BB |
2738 | char *logstr; |
2739 | ||
2740 | *cp = '\0'; | |
2741 | ||
2742 | h = make_dataset_handle(hdl, target); | |
2743 | if (h) { | |
2744 | /* it already exists, nothing to do here */ | |
2745 | zfs_close(h); | |
2746 | continue; | |
2747 | } | |
2748 | ||
2749 | logstr = hdl->libzfs_log_str; | |
2750 | hdl->libzfs_log_str = NULL; | |
2751 | if (zfs_create(hdl, target, ZFS_TYPE_FILESYSTEM, | |
2752 | NULL) != 0) { | |
2753 | hdl->libzfs_log_str = logstr; | |
2754 | opname = dgettext(TEXT_DOMAIN, "create"); | |
2755 | goto ancestorerr; | |
2756 | } | |
2757 | ||
2758 | hdl->libzfs_log_str = logstr; | |
2759 | h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); | |
2760 | if (h == NULL) { | |
2761 | opname = dgettext(TEXT_DOMAIN, "open"); | |
2762 | goto ancestorerr; | |
2763 | } | |
2764 | ||
2765 | if (zfs_mount(h, NULL, 0) != 0) { | |
2766 | opname = dgettext(TEXT_DOMAIN, "mount"); | |
2767 | goto ancestorerr; | |
2768 | } | |
2769 | ||
2770 | if (zfs_share(h) != 0) { | |
2771 | opname = dgettext(TEXT_DOMAIN, "share"); | |
2772 | goto ancestorerr; | |
2773 | } | |
2774 | ||
2775 | zfs_close(h); | |
2776 | } | |
2777 | ||
2778 | return (0); | |
2779 | ||
2780 | ancestorerr: | |
2781 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2782 | "failed to %s ancestor '%s'"), opname, target); | |
2783 | return (-1); | |
2784 | } | |
2785 | ||
2786 | /* | |
2787 | * Creates non-existing ancestors of the given path. | |
2788 | */ | |
2789 | int | |
2790 | zfs_create_ancestors(libzfs_handle_t *hdl, const char *path) | |
2791 | { | |
2792 | int prefix; | |
34dc7c2f BB |
2793 | char *path_copy; |
2794 | int rc; | |
2795 | ||
428870ff | 2796 | if (check_parents(hdl, path, NULL, B_TRUE, &prefix) != 0) |
34dc7c2f BB |
2797 | return (-1); |
2798 | ||
2799 | if ((path_copy = strdup(path)) != NULL) { | |
2800 | rc = create_parents(hdl, path_copy, prefix); | |
2801 | free(path_copy); | |
2802 | } | |
2803 | if (path_copy == NULL || rc != 0) | |
2804 | return (-1); | |
2805 | ||
2806 | return (0); | |
2807 | } | |
2808 | ||
2809 | /* | |
2810 | * Create a new filesystem or volume. | |
2811 | */ | |
2812 | int | |
2813 | zfs_create(libzfs_handle_t *hdl, const char *path, zfs_type_t type, | |
2814 | nvlist_t *props) | |
2815 | { | |
2598c001 | 2816 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
2817 | int ret; |
2818 | uint64_t size = 0; | |
2819 | uint64_t blocksize = zfs_prop_default_numeric(ZFS_PROP_VOLBLOCKSIZE); | |
2820 | char errbuf[1024]; | |
2821 | uint64_t zoned; | |
2822 | ||
2823 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
2824 | "cannot create '%s'"), path); | |
2825 | ||
2826 | /* validate the path, taking care to note the extended error message */ | |
2827 | if (!zfs_validate_name(hdl, path, type, B_TRUE)) | |
2828 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
2829 | ||
2830 | /* validate parents exist */ | |
2831 | if (check_parents(hdl, path, &zoned, B_FALSE, NULL) != 0) | |
2832 | return (-1); | |
2833 | ||
2834 | /* | |
2835 | * The failure modes when creating a dataset of a different type over | |
2836 | * one that already exists is a little strange. In particular, if you | |
2837 | * try to create a dataset on top of an existing dataset, the ioctl() | |
2838 | * will return ENOENT, not EEXIST. To prevent this from happening, we | |
2839 | * first try to see if the dataset exists. | |
2840 | */ | |
2841 | (void) strlcpy(zc.zc_name, path, sizeof (zc.zc_name)); | |
2842 | if (zfs_dataset_exists(hdl, zc.zc_name, ZFS_TYPE_DATASET)) { | |
2843 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2844 | "dataset already exists")); | |
2845 | return (zfs_error(hdl, EZFS_EXISTS, errbuf)); | |
2846 | } | |
2847 | ||
2848 | if (type == ZFS_TYPE_VOLUME) | |
2849 | zc.zc_objset_type = DMU_OST_ZVOL; | |
2850 | else | |
2851 | zc.zc_objset_type = DMU_OST_ZFS; | |
2852 | ||
b128c09f | 2853 | if (props && (props = zfs_valid_proplist(hdl, type, props, |
34dc7c2f BB |
2854 | zoned, NULL, errbuf)) == 0) |
2855 | return (-1); | |
2856 | ||
2857 | if (type == ZFS_TYPE_VOLUME) { | |
2858 | /* | |
2859 | * If we are creating a volume, the size and block size must | |
2860 | * satisfy a few restraints. First, the blocksize must be a | |
2861 | * valid block size between SPA_{MIN,MAX}BLOCKSIZE. Second, the | |
2862 | * volsize must be a multiple of the block size, and cannot be | |
2863 | * zero. | |
2864 | */ | |
2865 | if (props == NULL || nvlist_lookup_uint64(props, | |
2866 | zfs_prop_to_name(ZFS_PROP_VOLSIZE), &size) != 0) { | |
2867 | nvlist_free(props); | |
2868 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2869 | "missing volume size")); | |
2870 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
2871 | } | |
2872 | ||
2873 | if ((ret = nvlist_lookup_uint64(props, | |
2874 | zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
2875 | &blocksize)) != 0) { | |
2876 | if (ret == ENOENT) { | |
2877 | blocksize = zfs_prop_default_numeric( | |
2878 | ZFS_PROP_VOLBLOCKSIZE); | |
2879 | } else { | |
2880 | nvlist_free(props); | |
2881 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2882 | "missing volume block size")); | |
2883 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
2884 | } | |
2885 | } | |
2886 | ||
2887 | if (size == 0) { | |
2888 | nvlist_free(props); | |
2889 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2890 | "volume size cannot be zero")); | |
2891 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
2892 | } | |
2893 | ||
2894 | if (size % blocksize != 0) { | |
2895 | nvlist_free(props); | |
2896 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2897 | "volume size must be a multiple of volume block " | |
2898 | "size")); | |
2899 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
2900 | } | |
2901 | } | |
2902 | ||
2903 | if (props && zcmd_write_src_nvlist(hdl, &zc, props) != 0) | |
2904 | return (-1); | |
2905 | nvlist_free(props); | |
2906 | ||
2907 | /* create the dataset */ | |
2908 | ret = zfs_ioctl(hdl, ZFS_IOC_CREATE, &zc); | |
2909 | ||
34dc7c2f BB |
2910 | zcmd_free_nvlists(&zc); |
2911 | ||
2912 | /* check for failure */ | |
2913 | if (ret != 0) { | |
2914 | char parent[ZFS_MAXNAMELEN]; | |
2915 | (void) parent_name(path, parent, sizeof (parent)); | |
2916 | ||
2917 | switch (errno) { | |
2918 | case ENOENT: | |
2919 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2920 | "no such parent '%s'"), parent); | |
2921 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
2922 | ||
2923 | case EINVAL: | |
2924 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2925 | "parent '%s' is not a filesystem"), parent); | |
2926 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
2927 | ||
2928 | case EDOM: | |
2929 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2930 | "volume block size must be power of 2 from " | |
2931 | "%u to %uk"), | |
2932 | (uint_t)SPA_MINBLOCKSIZE, | |
2933 | (uint_t)SPA_MAXBLOCKSIZE >> 10); | |
2934 | ||
2935 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
2936 | ||
2937 | case ENOTSUP: | |
2938 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2939 | "pool must be upgraded to set this " | |
2940 | "property or value")); | |
2941 | return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); | |
2942 | #ifdef _ILP32 | |
2943 | case EOVERFLOW: | |
2944 | /* | |
2945 | * This platform can't address a volume this big. | |
2946 | */ | |
2947 | if (type == ZFS_TYPE_VOLUME) | |
2948 | return (zfs_error(hdl, EZFS_VOLTOOBIG, | |
2949 | errbuf)); | |
2950 | #endif | |
2951 | /* FALLTHROUGH */ | |
2952 | default: | |
2953 | return (zfs_standard_error(hdl, errno, errbuf)); | |
2954 | } | |
2955 | } | |
2956 | ||
2957 | return (0); | |
2958 | } | |
2959 | ||
2960 | /* | |
2961 | * Destroys the given dataset. The caller must make sure that the filesystem | |
2962 | * isn't mounted, and that there are no active dependents. | |
2963 | */ | |
2964 | int | |
45d1cae3 | 2965 | zfs_destroy(zfs_handle_t *zhp, boolean_t defer) |
34dc7c2f | 2966 | { |
2598c001 | 2967 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
2968 | |
2969 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
2970 | ||
2971 | if (ZFS_IS_VOLUME(zhp)) { | |
34dc7c2f BB |
2972 | zc.zc_objset_type = DMU_OST_ZVOL; |
2973 | } else { | |
2974 | zc.zc_objset_type = DMU_OST_ZFS; | |
2975 | } | |
2976 | ||
45d1cae3 | 2977 | zc.zc_defer_destroy = defer; |
34dc7c2f BB |
2978 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_DESTROY, &zc) != 0) { |
2979 | return (zfs_standard_error_fmt(zhp->zfs_hdl, errno, | |
2980 | dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), | |
2981 | zhp->zfs_name)); | |
2982 | } | |
2983 | ||
2984 | remove_mountpoint(zhp); | |
2985 | ||
2986 | return (0); | |
2987 | } | |
2988 | ||
2989 | struct destroydata { | |
2990 | char *snapname; | |
2991 | boolean_t gotone; | |
2992 | boolean_t closezhp; | |
2993 | }; | |
2994 | ||
2995 | static int | |
428870ff | 2996 | zfs_check_snap_cb(zfs_handle_t *zhp, void *arg) |
34dc7c2f BB |
2997 | { |
2998 | struct destroydata *dd = arg; | |
2999 | zfs_handle_t *szhp; | |
3000 | char name[ZFS_MAXNAMELEN]; | |
3001 | boolean_t closezhp = dd->closezhp; | |
428870ff | 3002 | int rv = 0; |
34dc7c2f BB |
3003 | |
3004 | (void) strlcpy(name, zhp->zfs_name, sizeof (name)); | |
3005 | (void) strlcat(name, "@", sizeof (name)); | |
3006 | (void) strlcat(name, dd->snapname, sizeof (name)); | |
3007 | ||
3008 | szhp = make_dataset_handle(zhp->zfs_hdl, name); | |
3009 | if (szhp) { | |
3010 | dd->gotone = B_TRUE; | |
3011 | zfs_close(szhp); | |
3012 | } | |
3013 | ||
34dc7c2f | 3014 | dd->closezhp = B_TRUE; |
428870ff BB |
3015 | if (!dd->gotone) |
3016 | rv = zfs_iter_filesystems(zhp, zfs_check_snap_cb, arg); | |
34dc7c2f BB |
3017 | if (closezhp) |
3018 | zfs_close(zhp); | |
3019 | return (rv); | |
3020 | } | |
3021 | ||
3022 | /* | |
3023 | * Destroys all snapshots with the given name in zhp & descendants. | |
3024 | */ | |
3025 | int | |
45d1cae3 | 3026 | zfs_destroy_snaps(zfs_handle_t *zhp, char *snapname, boolean_t defer) |
34dc7c2f | 3027 | { |
2598c001 | 3028 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
3029 | int ret; |
3030 | struct destroydata dd = { 0 }; | |
3031 | ||
3032 | dd.snapname = snapname; | |
428870ff | 3033 | (void) zfs_check_snap_cb(zhp, &dd); |
34dc7c2f BB |
3034 | |
3035 | if (!dd.gotone) { | |
3036 | return (zfs_standard_error_fmt(zhp->zfs_hdl, ENOENT, | |
3037 | dgettext(TEXT_DOMAIN, "cannot destroy '%s@%s'"), | |
3038 | zhp->zfs_name, snapname)); | |
3039 | } | |
3040 | ||
3041 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
3042 | (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); | |
45d1cae3 | 3043 | zc.zc_defer_destroy = defer; |
34dc7c2f BB |
3044 | |
3045 | ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_DESTROY_SNAPS, &zc); | |
3046 | if (ret != 0) { | |
3047 | char errbuf[1024]; | |
3048 | ||
3049 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3050 | "cannot destroy '%s@%s'"), zc.zc_name, snapname); | |
3051 | ||
3052 | switch (errno) { | |
3053 | case EEXIST: | |
3054 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
3055 | "snapshot is cloned")); | |
3056 | return (zfs_error(zhp->zfs_hdl, EZFS_EXISTS, errbuf)); | |
3057 | ||
3058 | default: | |
3059 | return (zfs_standard_error(zhp->zfs_hdl, errno, | |
3060 | errbuf)); | |
3061 | } | |
3062 | } | |
3063 | ||
3064 | return (0); | |
3065 | } | |
3066 | ||
3067 | /* | |
3068 | * Clones the given dataset. The target must be of the same type as the source. | |
3069 | */ | |
3070 | int | |
3071 | zfs_clone(zfs_handle_t *zhp, const char *target, nvlist_t *props) | |
3072 | { | |
2598c001 | 3073 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
3074 | char parent[ZFS_MAXNAMELEN]; |
3075 | int ret; | |
3076 | char errbuf[1024]; | |
3077 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
3078 | zfs_type_t type; | |
3079 | uint64_t zoned; | |
3080 | ||
3081 | assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); | |
3082 | ||
3083 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3084 | "cannot create '%s'"), target); | |
3085 | ||
3086 | /* validate the target name */ | |
3087 | if (!zfs_validate_name(hdl, target, ZFS_TYPE_FILESYSTEM, B_TRUE)) | |
3088 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
3089 | ||
3090 | /* validate parents exist */ | |
3091 | if (check_parents(hdl, target, &zoned, B_FALSE, NULL) != 0) | |
3092 | return (-1); | |
3093 | ||
3094 | (void) parent_name(target, parent, sizeof (parent)); | |
3095 | ||
3096 | /* do the clone */ | |
3097 | if (ZFS_IS_VOLUME(zhp)) { | |
3098 | zc.zc_objset_type = DMU_OST_ZVOL; | |
3099 | type = ZFS_TYPE_VOLUME; | |
3100 | } else { | |
3101 | zc.zc_objset_type = DMU_OST_ZFS; | |
3102 | type = ZFS_TYPE_FILESYSTEM; | |
3103 | } | |
3104 | ||
3105 | if (props) { | |
b128c09f BB |
3106 | if ((props = zfs_valid_proplist(hdl, type, props, zoned, |
3107 | zhp, errbuf)) == NULL) | |
34dc7c2f BB |
3108 | return (-1); |
3109 | ||
3110 | if (zcmd_write_src_nvlist(hdl, &zc, props) != 0) { | |
3111 | nvlist_free(props); | |
3112 | return (-1); | |
3113 | } | |
3114 | ||
3115 | nvlist_free(props); | |
3116 | } | |
3117 | ||
3118 | (void) strlcpy(zc.zc_name, target, sizeof (zc.zc_name)); | |
3119 | (void) strlcpy(zc.zc_value, zhp->zfs_name, sizeof (zc.zc_value)); | |
3120 | ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_CREATE, &zc); | |
3121 | ||
3122 | zcmd_free_nvlists(&zc); | |
3123 | ||
3124 | if (ret != 0) { | |
3125 | switch (errno) { | |
3126 | ||
3127 | case ENOENT: | |
3128 | /* | |
3129 | * The parent doesn't exist. We should have caught this | |
3130 | * above, but there may a race condition that has since | |
3131 | * destroyed the parent. | |
3132 | * | |
3133 | * At this point, we don't know whether it's the source | |
3134 | * that doesn't exist anymore, or whether the target | |
3135 | * dataset doesn't exist. | |
3136 | */ | |
3137 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
3138 | "no such parent '%s'"), parent); | |
3139 | return (zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf)); | |
3140 | ||
3141 | case EXDEV: | |
3142 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
3143 | "source and target pools differ")); | |
3144 | return (zfs_error(zhp->zfs_hdl, EZFS_CROSSTARGET, | |
3145 | errbuf)); | |
3146 | ||
3147 | default: | |
3148 | return (zfs_standard_error(zhp->zfs_hdl, errno, | |
3149 | errbuf)); | |
3150 | } | |
34dc7c2f BB |
3151 | } |
3152 | ||
3153 | return (ret); | |
3154 | } | |
3155 | ||
34dc7c2f BB |
3156 | /* |
3157 | * Promotes the given clone fs to be the clone parent. | |
3158 | */ | |
3159 | int | |
3160 | zfs_promote(zfs_handle_t *zhp) | |
3161 | { | |
3162 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
2598c001 | 3163 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f | 3164 | char parent[MAXPATHLEN]; |
34dc7c2f | 3165 | int ret; |
34dc7c2f BB |
3166 | char errbuf[1024]; |
3167 | ||
3168 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3169 | "cannot promote '%s'"), zhp->zfs_name); | |
3170 | ||
3171 | if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { | |
3172 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3173 | "snapshots can not be promoted")); | |
3174 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
3175 | } | |
3176 | ||
3177 | (void) strlcpy(parent, zhp->zfs_dmustats.dds_origin, sizeof (parent)); | |
3178 | if (parent[0] == '\0') { | |
3179 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3180 | "not a cloned filesystem")); | |
3181 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
3182 | } | |
34dc7c2f | 3183 | |
34dc7c2f BB |
3184 | (void) strlcpy(zc.zc_value, zhp->zfs_dmustats.dds_origin, |
3185 | sizeof (zc.zc_value)); | |
3186 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
3187 | ret = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc); | |
3188 | ||
3189 | if (ret != 0) { | |
3190 | int save_errno = errno; | |
3191 | ||
34dc7c2f BB |
3192 | switch (save_errno) { |
3193 | case EEXIST: | |
428870ff | 3194 | /* There is a conflicting snapshot name. */ |
34dc7c2f | 3195 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
428870ff BB |
3196 | "conflicting snapshot '%s' from parent '%s'"), |
3197 | zc.zc_string, parent); | |
34dc7c2f BB |
3198 | return (zfs_error(hdl, EZFS_EXISTS, errbuf)); |
3199 | ||
3200 | default: | |
3201 | return (zfs_standard_error(hdl, save_errno, errbuf)); | |
3202 | } | |
34dc7c2f | 3203 | } |
34dc7c2f BB |
3204 | return (ret); |
3205 | } | |
3206 | ||
3207 | /* | |
3208 | * Takes a snapshot of the given dataset. | |
3209 | */ | |
3210 | int | |
b128c09f BB |
3211 | zfs_snapshot(libzfs_handle_t *hdl, const char *path, boolean_t recursive, |
3212 | nvlist_t *props) | |
34dc7c2f BB |
3213 | { |
3214 | const char *delim; | |
b128c09f | 3215 | char parent[ZFS_MAXNAMELEN]; |
34dc7c2f | 3216 | zfs_handle_t *zhp; |
2598c001 | 3217 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
3218 | int ret; |
3219 | char errbuf[1024]; | |
3220 | ||
3221 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3222 | "cannot snapshot '%s'"), path); | |
3223 | ||
3224 | /* validate the target name */ | |
3225 | if (!zfs_validate_name(hdl, path, ZFS_TYPE_SNAPSHOT, B_TRUE)) | |
3226 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
3227 | ||
b128c09f BB |
3228 | if (props) { |
3229 | if ((props = zfs_valid_proplist(hdl, ZFS_TYPE_SNAPSHOT, | |
3230 | props, B_FALSE, NULL, errbuf)) == NULL) | |
3231 | return (-1); | |
3232 | ||
3233 | if (zcmd_write_src_nvlist(hdl, &zc, props) != 0) { | |
3234 | nvlist_free(props); | |
3235 | return (-1); | |
3236 | } | |
3237 | ||
3238 | nvlist_free(props); | |
3239 | } | |
3240 | ||
34dc7c2f BB |
3241 | /* make sure the parent exists and is of the appropriate type */ |
3242 | delim = strchr(path, '@'); | |
34dc7c2f BB |
3243 | (void) strncpy(parent, path, delim - path); |
3244 | parent[delim - path] = '\0'; | |
3245 | ||
3246 | if ((zhp = zfs_open(hdl, parent, ZFS_TYPE_FILESYSTEM | | |
3247 | ZFS_TYPE_VOLUME)) == NULL) { | |
b128c09f | 3248 | zcmd_free_nvlists(&zc); |
34dc7c2f BB |
3249 | return (-1); |
3250 | } | |
3251 | ||
3252 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
3253 | (void) strlcpy(zc.zc_value, delim+1, sizeof (zc.zc_value)); | |
3254 | if (ZFS_IS_VOLUME(zhp)) | |
3255 | zc.zc_objset_type = DMU_OST_ZVOL; | |
3256 | else | |
3257 | zc.zc_objset_type = DMU_OST_ZFS; | |
3258 | zc.zc_cookie = recursive; | |
3259 | ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_SNAPSHOT, &zc); | |
3260 | ||
b128c09f BB |
3261 | zcmd_free_nvlists(&zc); |
3262 | ||
34dc7c2f BB |
3263 | /* |
3264 | * if it was recursive, the one that actually failed will be in | |
3265 | * zc.zc_name. | |
3266 | */ | |
428870ff | 3267 | if (ret != 0) { |
34dc7c2f BB |
3268 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, |
3269 | "cannot create snapshot '%s@%s'"), zc.zc_name, zc.zc_value); | |
34dc7c2f | 3270 | (void) zfs_standard_error(hdl, errno, errbuf); |
428870ff | 3271 | } |
34dc7c2f | 3272 | |
34dc7c2f BB |
3273 | zfs_close(zhp); |
3274 | ||
3275 | return (ret); | |
3276 | } | |
3277 | ||
3278 | /* | |
3279 | * Destroy any more recent snapshots. We invoke this callback on any dependents | |
3280 | * of the snapshot first. If the 'cb_dependent' member is non-zero, then this | |
3281 | * is a dependent and we should just destroy it without checking the transaction | |
3282 | * group. | |
3283 | */ | |
3284 | typedef struct rollback_data { | |
3285 | const char *cb_target; /* the snapshot */ | |
3286 | uint64_t cb_create; /* creation time reference */ | |
3287 | boolean_t cb_error; | |
3288 | boolean_t cb_dependent; | |
3289 | boolean_t cb_force; | |
3290 | } rollback_data_t; | |
3291 | ||
3292 | static int | |
3293 | rollback_destroy(zfs_handle_t *zhp, void *data) | |
3294 | { | |
3295 | rollback_data_t *cbp = data; | |
3296 | ||
3297 | if (!cbp->cb_dependent) { | |
3298 | if (strcmp(zhp->zfs_name, cbp->cb_target) != 0 && | |
3299 | zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT && | |
3300 | zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > | |
3301 | cbp->cb_create) { | |
3302 | char *logstr; | |
3303 | ||
3304 | cbp->cb_dependent = B_TRUE; | |
3305 | cbp->cb_error |= zfs_iter_dependents(zhp, B_FALSE, | |
3306 | rollback_destroy, cbp); | |
3307 | cbp->cb_dependent = B_FALSE; | |
3308 | ||
3309 | logstr = zhp->zfs_hdl->libzfs_log_str; | |
3310 | zhp->zfs_hdl->libzfs_log_str = NULL; | |
45d1cae3 | 3311 | cbp->cb_error |= zfs_destroy(zhp, B_FALSE); |
34dc7c2f BB |
3312 | zhp->zfs_hdl->libzfs_log_str = logstr; |
3313 | } | |
3314 | } else { | |
3315 | /* We must destroy this clone; first unmount it */ | |
3316 | prop_changelist_t *clp; | |
3317 | ||
b128c09f | 3318 | clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, |
34dc7c2f BB |
3319 | cbp->cb_force ? MS_FORCE: 0); |
3320 | if (clp == NULL || changelist_prefix(clp) != 0) { | |
3321 | cbp->cb_error = B_TRUE; | |
3322 | zfs_close(zhp); | |
3323 | return (0); | |
3324 | } | |
45d1cae3 | 3325 | if (zfs_destroy(zhp, B_FALSE) != 0) |
34dc7c2f BB |
3326 | cbp->cb_error = B_TRUE; |
3327 | else | |
3328 | changelist_remove(clp, zhp->zfs_name); | |
3329 | (void) changelist_postfix(clp); | |
3330 | changelist_free(clp); | |
3331 | } | |
3332 | ||
3333 | zfs_close(zhp); | |
3334 | return (0); | |
3335 | } | |
3336 | ||
3337 | /* | |
3338 | * Given a dataset, rollback to a specific snapshot, discarding any | |
3339 | * data changes since then and making it the active dataset. | |
3340 | * | |
3341 | * Any snapshots more recent than the target are destroyed, along with | |
3342 | * their dependents. | |
3343 | */ | |
3344 | int | |
3345 | zfs_rollback(zfs_handle_t *zhp, zfs_handle_t *snap, boolean_t force) | |
3346 | { | |
3347 | rollback_data_t cb = { 0 }; | |
3348 | int err; | |
2598c001 | 3349 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
3350 | boolean_t restore_resv = 0; |
3351 | uint64_t old_volsize, new_volsize; | |
3352 | zfs_prop_t resv_prop; | |
3353 | ||
3354 | assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM || | |
3355 | zhp->zfs_type == ZFS_TYPE_VOLUME); | |
3356 | ||
3357 | /* | |
3358 | * Destroy all recent snapshots and its dependends. | |
3359 | */ | |
3360 | cb.cb_force = force; | |
3361 | cb.cb_target = snap->zfs_name; | |
3362 | cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); | |
3363 | (void) zfs_iter_children(zhp, rollback_destroy, &cb); | |
3364 | ||
3365 | if (cb.cb_error) | |
3366 | return (-1); | |
3367 | ||
3368 | /* | |
3369 | * Now that we have verified that the snapshot is the latest, | |
3370 | * rollback to the given snapshot. | |
3371 | */ | |
3372 | ||
3373 | if (zhp->zfs_type == ZFS_TYPE_VOLUME) { | |
34dc7c2f BB |
3374 | if (zfs_which_resv_prop(zhp, &resv_prop) < 0) |
3375 | return (-1); | |
3376 | old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); | |
3377 | restore_resv = | |
3378 | (old_volsize == zfs_prop_get_int(zhp, resv_prop)); | |
3379 | } | |
3380 | ||
3381 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
3382 | ||
3383 | if (ZFS_IS_VOLUME(zhp)) | |
3384 | zc.zc_objset_type = DMU_OST_ZVOL; | |
3385 | else | |
3386 | zc.zc_objset_type = DMU_OST_ZFS; | |
3387 | ||
3388 | /* | |
3389 | * We rely on zfs_iter_children() to verify that there are no | |
3390 | * newer snapshots for the given dataset. Therefore, we can | |
3391 | * simply pass the name on to the ioctl() call. There is still | |
3392 | * an unlikely race condition where the user has taken a | |
3393 | * snapshot since we verified that this was the most recent. | |
3394 | * | |
3395 | */ | |
3396 | if ((err = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_ROLLBACK, &zc)) != 0) { | |
3397 | (void) zfs_standard_error_fmt(zhp->zfs_hdl, errno, | |
3398 | dgettext(TEXT_DOMAIN, "cannot rollback '%s'"), | |
3399 | zhp->zfs_name); | |
3400 | return (err); | |
3401 | } | |
3402 | ||
3403 | /* | |
3404 | * For volumes, if the pre-rollback volsize matched the pre- | |
3405 | * rollback reservation and the volsize has changed then set | |
3406 | * the reservation property to the post-rollback volsize. | |
3407 | * Make a new handle since the rollback closed the dataset. | |
3408 | */ | |
3409 | if ((zhp->zfs_type == ZFS_TYPE_VOLUME) && | |
3410 | (zhp = make_dataset_handle(zhp->zfs_hdl, zhp->zfs_name))) { | |
34dc7c2f BB |
3411 | if (restore_resv) { |
3412 | new_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); | |
3413 | if (old_volsize != new_volsize) | |
3414 | err = zfs_prop_set_int(zhp, resv_prop, | |
3415 | new_volsize); | |
3416 | } | |
3417 | zfs_close(zhp); | |
3418 | } | |
3419 | return (err); | |
3420 | } | |
3421 | ||
3422 | /* | |
3423 | * Iterate over all dependents for a given dataset. This includes both | |
3424 | * hierarchical dependents (children) and data dependents (snapshots and | |
3425 | * clones). The bulk of the processing occurs in get_dependents() in | |
3426 | * libzfs_graph.c. | |
3427 | */ | |
3428 | int | |
3429 | zfs_iter_dependents(zfs_handle_t *zhp, boolean_t allowrecursion, | |
3430 | zfs_iter_f func, void *data) | |
3431 | { | |
3432 | char **dependents; | |
3433 | size_t count; | |
3434 | int i; | |
3435 | zfs_handle_t *child; | |
3436 | int ret = 0; | |
3437 | ||
3438 | if (get_dependents(zhp->zfs_hdl, allowrecursion, zhp->zfs_name, | |
3439 | &dependents, &count) != 0) | |
3440 | return (-1); | |
3441 | ||
3442 | for (i = 0; i < count; i++) { | |
3443 | if ((child = make_dataset_handle(zhp->zfs_hdl, | |
3444 | dependents[i])) == NULL) | |
3445 | continue; | |
3446 | ||
3447 | if ((ret = func(child, data)) != 0) | |
3448 | break; | |
3449 | } | |
3450 | ||
3451 | for (i = 0; i < count; i++) | |
3452 | free(dependents[i]); | |
3453 | free(dependents); | |
3454 | ||
3455 | return (ret); | |
3456 | } | |
3457 | ||
3458 | /* | |
3459 | * Renames the given dataset. | |
3460 | */ | |
3461 | int | |
3462 | zfs_rename(zfs_handle_t *zhp, const char *target, boolean_t recursive) | |
3463 | { | |
3464 | int ret; | |
2598c001 | 3465 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
3466 | char *delim; |
3467 | prop_changelist_t *cl = NULL; | |
3468 | zfs_handle_t *zhrp = NULL; | |
3469 | char *parentname = NULL; | |
3470 | char parent[ZFS_MAXNAMELEN]; | |
3471 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
3472 | char errbuf[1024]; | |
3473 | ||
3474 | /* if we have the same exact name, just return success */ | |
3475 | if (strcmp(zhp->zfs_name, target) == 0) | |
3476 | return (0); | |
3477 | ||
3478 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3479 | "cannot rename to '%s'"), target); | |
3480 | ||
3481 | /* | |
3482 | * Make sure the target name is valid | |
3483 | */ | |
3484 | if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { | |
3485 | if ((strchr(target, '@') == NULL) || | |
3486 | *target == '@') { | |
3487 | /* | |
3488 | * Snapshot target name is abbreviated, | |
3489 | * reconstruct full dataset name | |
3490 | */ | |
3491 | (void) strlcpy(parent, zhp->zfs_name, | |
3492 | sizeof (parent)); | |
3493 | delim = strchr(parent, '@'); | |
3494 | if (strchr(target, '@') == NULL) | |
3495 | *(++delim) = '\0'; | |
3496 | else | |
3497 | *delim = '\0'; | |
3498 | (void) strlcat(parent, target, sizeof (parent)); | |
3499 | target = parent; | |
3500 | } else { | |
3501 | /* | |
3502 | * Make sure we're renaming within the same dataset. | |
3503 | */ | |
3504 | delim = strchr(target, '@'); | |
3505 | if (strncmp(zhp->zfs_name, target, delim - target) | |
3506 | != 0 || zhp->zfs_name[delim - target] != '@') { | |
3507 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3508 | "snapshots must be part of same " | |
3509 | "dataset")); | |
3510 | return (zfs_error(hdl, EZFS_CROSSTARGET, | |
3511 | errbuf)); | |
3512 | } | |
3513 | } | |
3514 | if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) | |
3515 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
3516 | } else { | |
3517 | if (recursive) { | |
3518 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3519 | "recursive rename must be a snapshot")); | |
3520 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
3521 | } | |
3522 | ||
3523 | if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) | |
3524 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
34dc7c2f BB |
3525 | |
3526 | /* validate parents */ | |
428870ff | 3527 | if (check_parents(hdl, target, NULL, B_FALSE, NULL) != 0) |
34dc7c2f BB |
3528 | return (-1); |
3529 | ||
34dc7c2f BB |
3530 | /* make sure we're in the same pool */ |
3531 | verify((delim = strchr(target, '/')) != NULL); | |
3532 | if (strncmp(zhp->zfs_name, target, delim - target) != 0 || | |
3533 | zhp->zfs_name[delim - target] != '/') { | |
3534 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3535 | "datasets must be within same pool")); | |
3536 | return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); | |
3537 | } | |
3538 | ||
3539 | /* new name cannot be a child of the current dataset name */ | |
428870ff | 3540 | if (is_descendant(zhp->zfs_name, target)) { |
34dc7c2f | 3541 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
428870ff | 3542 | "New dataset name cannot be a descendant of " |
34dc7c2f BB |
3543 | "current dataset name")); |
3544 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
3545 | } | |
3546 | } | |
3547 | ||
3548 | (void) snprintf(errbuf, sizeof (errbuf), | |
3549 | dgettext(TEXT_DOMAIN, "cannot rename '%s'"), zhp->zfs_name); | |
3550 | ||
3551 | if (getzoneid() == GLOBAL_ZONEID && | |
3552 | zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { | |
3553 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3554 | "dataset is used in a non-global zone")); | |
3555 | return (zfs_error(hdl, EZFS_ZONED, errbuf)); | |
3556 | } | |
3557 | ||
3558 | if (recursive) { | |
34dc7c2f BB |
3559 | |
3560 | parentname = zfs_strdup(zhp->zfs_hdl, zhp->zfs_name); | |
3561 | if (parentname == NULL) { | |
3562 | ret = -1; | |
3563 | goto error; | |
3564 | } | |
3565 | delim = strchr(parentname, '@'); | |
3566 | *delim = '\0'; | |
3567 | zhrp = zfs_open(zhp->zfs_hdl, parentname, ZFS_TYPE_DATASET); | |
3568 | if (zhrp == NULL) { | |
3569 | ret = -1; | |
3570 | goto error; | |
3571 | } | |
3572 | ||
34dc7c2f | 3573 | } else { |
b128c09f | 3574 | if ((cl = changelist_gather(zhp, ZFS_PROP_NAME, 0, 0)) == NULL) |
34dc7c2f BB |
3575 | return (-1); |
3576 | ||
3577 | if (changelist_haszonedchild(cl)) { | |
3578 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3579 | "child dataset with inherited mountpoint is used " | |
3580 | "in a non-global zone")); | |
3581 | (void) zfs_error(hdl, EZFS_ZONED, errbuf); | |
3582 | goto error; | |
3583 | } | |
3584 | ||
3585 | if ((ret = changelist_prefix(cl)) != 0) | |
3586 | goto error; | |
3587 | } | |
3588 | ||
3589 | if (ZFS_IS_VOLUME(zhp)) | |
3590 | zc.zc_objset_type = DMU_OST_ZVOL; | |
3591 | else | |
3592 | zc.zc_objset_type = DMU_OST_ZFS; | |
3593 | ||
3594 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
3595 | (void) strlcpy(zc.zc_value, target, sizeof (zc.zc_value)); | |
3596 | ||
3597 | zc.zc_cookie = recursive; | |
3598 | ||
3599 | if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_RENAME, &zc)) != 0) { | |
3600 | /* | |
3601 | * if it was recursive, the one that actually failed will | |
3602 | * be in zc.zc_name | |
3603 | */ | |
3604 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3605 | "cannot rename '%s'"), zc.zc_name); | |
3606 | ||
3607 | if (recursive && errno == EEXIST) { | |
3608 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3609 | "a child dataset already has a snapshot " | |
3610 | "with the new name")); | |
3611 | (void) zfs_error(hdl, EZFS_EXISTS, errbuf); | |
3612 | } else { | |
3613 | (void) zfs_standard_error(zhp->zfs_hdl, errno, errbuf); | |
3614 | } | |
3615 | ||
3616 | /* | |
3617 | * On failure, we still want to remount any filesystems that | |
3618 | * were previously mounted, so we don't alter the system state. | |
3619 | */ | |
428870ff | 3620 | if (!recursive) |
34dc7c2f | 3621 | (void) changelist_postfix(cl); |
34dc7c2f | 3622 | } else { |
428870ff | 3623 | if (!recursive) { |
34dc7c2f BB |
3624 | changelist_rename(cl, zfs_get_name(zhp), target); |
3625 | ret = changelist_postfix(cl); | |
3626 | } | |
3627 | } | |
3628 | ||
3629 | error: | |
3630 | if (parentname) { | |
3631 | free(parentname); | |
3632 | } | |
3633 | if (zhrp) { | |
3634 | zfs_close(zhrp); | |
3635 | } | |
3636 | if (cl) { | |
3637 | changelist_free(cl); | |
3638 | } | |
3639 | return (ret); | |
3640 | } | |
3641 | ||
428870ff BB |
3642 | nvlist_t * |
3643 | zfs_get_user_props(zfs_handle_t *zhp) | |
34dc7c2f | 3644 | { |
428870ff | 3645 | return (zhp->zfs_user_props); |
34dc7c2f BB |
3646 | } |
3647 | ||
3648 | nvlist_t * | |
428870ff | 3649 | zfs_get_recvd_props(zfs_handle_t *zhp) |
34dc7c2f | 3650 | { |
428870ff BB |
3651 | if (zhp->zfs_recvd_props == NULL) |
3652 | if (get_recvd_props_ioctl(zhp) != 0) | |
3653 | return (NULL); | |
3654 | return (zhp->zfs_recvd_props); | |
34dc7c2f BB |
3655 | } |
3656 | ||
3657 | /* | |
3658 | * This function is used by 'zfs list' to determine the exact set of columns to | |
3659 | * display, and their maximum widths. This does two main things: | |
3660 | * | |
3661 | * - If this is a list of all properties, then expand the list to include | |
3662 | * all native properties, and set a flag so that for each dataset we look | |
3663 | * for new unique user properties and add them to the list. | |
3664 | * | |
3665 | * - For non fixed-width properties, keep track of the maximum width seen | |
428870ff BB |
3666 | * so that we can size the column appropriately. If the user has |
3667 | * requested received property values, we also need to compute the width | |
3668 | * of the RECEIVED column. | |
34dc7c2f BB |
3669 | */ |
3670 | int | |
428870ff | 3671 | zfs_expand_proplist(zfs_handle_t *zhp, zprop_list_t **plp, boolean_t received) |
34dc7c2f BB |
3672 | { |
3673 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
3674 | zprop_list_t *entry; | |
3675 | zprop_list_t **last, **start; | |
3676 | nvlist_t *userprops, *propval; | |
3677 | nvpair_t *elem; | |
3678 | char *strval; | |
3679 | char buf[ZFS_MAXPROPLEN]; | |
3680 | ||
3681 | if (zprop_expand_list(hdl, plp, ZFS_TYPE_DATASET) != 0) | |
3682 | return (-1); | |
3683 | ||
3684 | userprops = zfs_get_user_props(zhp); | |
3685 | ||
3686 | entry = *plp; | |
3687 | if (entry->pl_all && nvlist_next_nvpair(userprops, NULL) != NULL) { | |
3688 | /* | |
3689 | * Go through and add any user properties as necessary. We | |
3690 | * start by incrementing our list pointer to the first | |
3691 | * non-native property. | |
3692 | */ | |
3693 | start = plp; | |
3694 | while (*start != NULL) { | |
3695 | if ((*start)->pl_prop == ZPROP_INVAL) | |
3696 | break; | |
3697 | start = &(*start)->pl_next; | |
3698 | } | |
3699 | ||
3700 | elem = NULL; | |
3701 | while ((elem = nvlist_next_nvpair(userprops, elem)) != NULL) { | |
3702 | /* | |
3703 | * See if we've already found this property in our list. | |
3704 | */ | |
3705 | for (last = start; *last != NULL; | |
3706 | last = &(*last)->pl_next) { | |
3707 | if (strcmp((*last)->pl_user_prop, | |
3708 | nvpair_name(elem)) == 0) | |
3709 | break; | |
3710 | } | |
3711 | ||
3712 | if (*last == NULL) { | |
3713 | if ((entry = zfs_alloc(hdl, | |
3714 | sizeof (zprop_list_t))) == NULL || | |
3715 | ((entry->pl_user_prop = zfs_strdup(hdl, | |
3716 | nvpair_name(elem)))) == NULL) { | |
3717 | free(entry); | |
3718 | return (-1); | |
3719 | } | |
3720 | ||
3721 | entry->pl_prop = ZPROP_INVAL; | |
3722 | entry->pl_width = strlen(nvpair_name(elem)); | |
3723 | entry->pl_all = B_TRUE; | |
3724 | *last = entry; | |
3725 | } | |
3726 | } | |
3727 | } | |
3728 | ||
3729 | /* | |
3730 | * Now go through and check the width of any non-fixed columns | |
3731 | */ | |
3732 | for (entry = *plp; entry != NULL; entry = entry->pl_next) { | |
3733 | if (entry->pl_fixed) | |
3734 | continue; | |
3735 | ||
3736 | if (entry->pl_prop != ZPROP_INVAL) { | |
3737 | if (zfs_prop_get(zhp, entry->pl_prop, | |
3738 | buf, sizeof (buf), NULL, NULL, 0, B_FALSE) == 0) { | |
3739 | if (strlen(buf) > entry->pl_width) | |
3740 | entry->pl_width = strlen(buf); | |
3741 | } | |
428870ff BB |
3742 | if (received && zfs_prop_get_recvd(zhp, |
3743 | zfs_prop_to_name(entry->pl_prop), | |
3744 | buf, sizeof (buf), B_FALSE) == 0) | |
3745 | if (strlen(buf) > entry->pl_recvd_width) | |
3746 | entry->pl_recvd_width = strlen(buf); | |
3747 | } else { | |
3748 | if (nvlist_lookup_nvlist(userprops, entry->pl_user_prop, | |
3749 | &propval) == 0) { | |
3750 | verify(nvlist_lookup_string(propval, | |
3751 | ZPROP_VALUE, &strval) == 0); | |
3752 | if (strlen(strval) > entry->pl_width) | |
3753 | entry->pl_width = strlen(strval); | |
3754 | } | |
3755 | if (received && zfs_prop_get_recvd(zhp, | |
3756 | entry->pl_user_prop, | |
3757 | buf, sizeof (buf), B_FALSE) == 0) | |
3758 | if (strlen(buf) > entry->pl_recvd_width) | |
3759 | entry->pl_recvd_width = strlen(buf); | |
34dc7c2f BB |
3760 | } |
3761 | } | |
3762 | ||
3763 | return (0); | |
3764 | } | |
3765 | ||
34dc7c2f BB |
3766 | int |
3767 | zfs_deleg_share_nfs(libzfs_handle_t *hdl, char *dataset, char *path, | |
9babb374 BB |
3768 | char *resource, void *export, void *sharetab, |
3769 | int sharemax, zfs_share_op_t operation) | |
34dc7c2f | 3770 | { |
2598c001 | 3771 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
3772 | int error; |
3773 | ||
3774 | (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); | |
3775 | (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); | |
9babb374 BB |
3776 | if (resource) |
3777 | (void) strlcpy(zc.zc_string, resource, sizeof (zc.zc_string)); | |
34dc7c2f BB |
3778 | zc.zc_share.z_sharedata = (uint64_t)(uintptr_t)sharetab; |
3779 | zc.zc_share.z_exportdata = (uint64_t)(uintptr_t)export; | |
3780 | zc.zc_share.z_sharetype = operation; | |
3781 | zc.zc_share.z_sharemax = sharemax; | |
34dc7c2f BB |
3782 | error = ioctl(hdl->libzfs_fd, ZFS_IOC_SHARE, &zc); |
3783 | return (error); | |
3784 | } | |
9babb374 BB |
3785 | |
3786 | void | |
3787 | zfs_prune_proplist(zfs_handle_t *zhp, uint8_t *props) | |
3788 | { | |
3789 | nvpair_t *curr; | |
3790 | ||
3791 | /* | |
3792 | * Keep a reference to the props-table against which we prune the | |
3793 | * properties. | |
3794 | */ | |
3795 | zhp->zfs_props_table = props; | |
3796 | ||
3797 | curr = nvlist_next_nvpair(zhp->zfs_props, NULL); | |
3798 | ||
3799 | while (curr) { | |
3800 | zfs_prop_t zfs_prop = zfs_name_to_prop(nvpair_name(curr)); | |
3801 | nvpair_t *next = nvlist_next_nvpair(zhp->zfs_props, curr); | |
3802 | ||
3803 | /* | |
428870ff BB |
3804 | * User properties will result in ZPROP_INVAL, and since we |
3805 | * only know how to prune standard ZFS properties, we always | |
3806 | * leave these in the list. This can also happen if we | |
3807 | * encounter an unknown DSL property (when running older | |
3808 | * software, for example). | |
9babb374 BB |
3809 | */ |
3810 | if (zfs_prop != ZPROP_INVAL && props[zfs_prop] == B_FALSE) | |
3811 | (void) nvlist_remove(zhp->zfs_props, | |
3812 | nvpair_name(curr), nvpair_type(curr)); | |
3813 | curr = next; | |
3814 | } | |
3815 | } | |
3816 | ||
3817 | static int | |
3818 | zfs_smb_acl_mgmt(libzfs_handle_t *hdl, char *dataset, char *path, | |
3819 | zfs_smb_acl_op_t cmd, char *resource1, char *resource2) | |
3820 | { | |
2598c001 | 3821 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
9babb374 BB |
3822 | nvlist_t *nvlist = NULL; |
3823 | int error; | |
3824 | ||
3825 | (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); | |
3826 | (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); | |
3827 | zc.zc_cookie = (uint64_t)cmd; | |
3828 | ||
3829 | if (cmd == ZFS_SMB_ACL_RENAME) { | |
3830 | if (nvlist_alloc(&nvlist, NV_UNIQUE_NAME, 0) != 0) { | |
3831 | (void) no_memory(hdl); | |
3832 | return (NULL); | |
3833 | } | |
3834 | } | |
3835 | ||
3836 | switch (cmd) { | |
3837 | case ZFS_SMB_ACL_ADD: | |
3838 | case ZFS_SMB_ACL_REMOVE: | |
3839 | (void) strlcpy(zc.zc_string, resource1, sizeof (zc.zc_string)); | |
3840 | break; | |
3841 | case ZFS_SMB_ACL_RENAME: | |
3842 | if (nvlist_add_string(nvlist, ZFS_SMB_ACL_SRC, | |
3843 | resource1) != 0) { | |
3844 | (void) no_memory(hdl); | |
3845 | return (-1); | |
3846 | } | |
3847 | if (nvlist_add_string(nvlist, ZFS_SMB_ACL_TARGET, | |
3848 | resource2) != 0) { | |
3849 | (void) no_memory(hdl); | |
3850 | return (-1); | |
3851 | } | |
3852 | if (zcmd_write_src_nvlist(hdl, &zc, nvlist) != 0) { | |
3853 | nvlist_free(nvlist); | |
3854 | return (-1); | |
3855 | } | |
3856 | break; | |
3857 | case ZFS_SMB_ACL_PURGE: | |
3858 | break; | |
3859 | default: | |
3860 | return (-1); | |
3861 | } | |
3862 | error = ioctl(hdl->libzfs_fd, ZFS_IOC_SMB_ACL, &zc); | |
3863 | if (nvlist) | |
3864 | nvlist_free(nvlist); | |
3865 | return (error); | |
3866 | } | |
3867 | ||
3868 | int | |
3869 | zfs_smb_acl_add(libzfs_handle_t *hdl, char *dataset, | |
3870 | char *path, char *resource) | |
3871 | { | |
3872 | return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_ADD, | |
3873 | resource, NULL)); | |
3874 | } | |
3875 | ||
3876 | int | |
3877 | zfs_smb_acl_remove(libzfs_handle_t *hdl, char *dataset, | |
3878 | char *path, char *resource) | |
3879 | { | |
3880 | return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_REMOVE, | |
3881 | resource, NULL)); | |
3882 | } | |
3883 | ||
3884 | int | |
3885 | zfs_smb_acl_purge(libzfs_handle_t *hdl, char *dataset, char *path) | |
3886 | { | |
3887 | return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_PURGE, | |
3888 | NULL, NULL)); | |
3889 | } | |
3890 | ||
3891 | int | |
3892 | zfs_smb_acl_rename(libzfs_handle_t *hdl, char *dataset, char *path, | |
3893 | char *oldname, char *newname) | |
3894 | { | |
3895 | return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_RENAME, | |
3896 | oldname, newname)); | |
3897 | } | |
3898 | ||
3899 | int | |
3900 | zfs_userspace(zfs_handle_t *zhp, zfs_userquota_prop_t type, | |
3901 | zfs_userspace_cb_t func, void *arg) | |
3902 | { | |
2598c001 | 3903 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
9babb374 BB |
3904 | int error; |
3905 | zfs_useracct_t buf[100]; | |
3906 | ||
3907 | (void) strncpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
3908 | ||
3909 | zc.zc_objset_type = type; | |
3910 | zc.zc_nvlist_dst = (uintptr_t)buf; | |
3911 | ||
3912 | /* CONSTCOND */ | |
3913 | while (1) { | |
3914 | zfs_useracct_t *zua = buf; | |
3915 | ||
3916 | zc.zc_nvlist_dst_size = sizeof (buf); | |
3917 | error = ioctl(zhp->zfs_hdl->libzfs_fd, | |
3918 | ZFS_IOC_USERSPACE_MANY, &zc); | |
3919 | if (error || zc.zc_nvlist_dst_size == 0) | |
3920 | break; | |
3921 | ||
3922 | while (zc.zc_nvlist_dst_size > 0) { | |
3923 | error = func(arg, zua->zu_domain, zua->zu_rid, | |
3924 | zua->zu_space); | |
3925 | if (error != 0) | |
3926 | return (error); | |
3927 | zua++; | |
3928 | zc.zc_nvlist_dst_size -= sizeof (zfs_useracct_t); | |
3929 | } | |
3930 | } | |
3931 | ||
3932 | return (error); | |
3933 | } | |
45d1cae3 BB |
3934 | |
3935 | int | |
3936 | zfs_hold(zfs_handle_t *zhp, const char *snapname, const char *tag, | |
572e2857 BB |
3937 | boolean_t recursive, boolean_t temphold, boolean_t enoent_ok, |
3938 | int cleanup_fd, uint64_t dsobj, uint64_t createtxg) | |
45d1cae3 | 3939 | { |
2598c001 | 3940 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
45d1cae3 BB |
3941 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
3942 | ||
572e2857 BB |
3943 | ASSERT(!recursive || dsobj == 0); |
3944 | ||
45d1cae3 BB |
3945 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); |
3946 | (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); | |
428870ff BB |
3947 | if (strlcpy(zc.zc_string, tag, sizeof (zc.zc_string)) |
3948 | >= sizeof (zc.zc_string)) | |
3949 | return (zfs_error(hdl, EZFS_TAGTOOLONG, tag)); | |
45d1cae3 | 3950 | zc.zc_cookie = recursive; |
428870ff | 3951 | zc.zc_temphold = temphold; |
572e2857 BB |
3952 | zc.zc_cleanup_fd = cleanup_fd; |
3953 | zc.zc_sendobj = dsobj; | |
3954 | zc.zc_createtxg = createtxg; | |
45d1cae3 BB |
3955 | |
3956 | if (zfs_ioctl(hdl, ZFS_IOC_HOLD, &zc) != 0) { | |
3957 | char errbuf[ZFS_MAXNAMELEN+32]; | |
3958 | ||
3959 | /* | |
3960 | * if it was recursive, the one that actually failed will be in | |
3961 | * zc.zc_name. | |
3962 | */ | |
3963 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3964 | "cannot hold '%s@%s'"), zc.zc_name, snapname); | |
3965 | switch (errno) { | |
428870ff BB |
3966 | case E2BIG: |
3967 | /* | |
3968 | * Temporary tags wind up having the ds object id | |
3969 | * prepended. So even if we passed the length check | |
3970 | * above, it's still possible for the tag to wind | |
3971 | * up being slightly too long. | |
3972 | */ | |
3973 | return (zfs_error(hdl, EZFS_TAGTOOLONG, errbuf)); | |
45d1cae3 BB |
3974 | case ENOTSUP: |
3975 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3976 | "pool must be upgraded")); | |
3977 | return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); | |
3978 | case EINVAL: | |
3979 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
3980 | case EEXIST: | |
3981 | return (zfs_error(hdl, EZFS_REFTAG_HOLD, errbuf)); | |
428870ff BB |
3982 | case ENOENT: |
3983 | if (enoent_ok) | |
572e2857 | 3984 | return (ENOENT); |
428870ff | 3985 | /* FALLTHROUGH */ |
45d1cae3 BB |
3986 | default: |
3987 | return (zfs_standard_error_fmt(hdl, errno, errbuf)); | |
3988 | } | |
3989 | } | |
3990 | ||
3991 | return (0); | |
3992 | } | |
3993 | ||
3994 | int | |
3995 | zfs_release(zfs_handle_t *zhp, const char *snapname, const char *tag, | |
3996 | boolean_t recursive) | |
3997 | { | |
2598c001 | 3998 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
45d1cae3 BB |
3999 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
4000 | ||
4001 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
4002 | (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); | |
428870ff BB |
4003 | if (strlcpy(zc.zc_string, tag, sizeof (zc.zc_string)) |
4004 | >= sizeof (zc.zc_string)) | |
4005 | return (zfs_error(hdl, EZFS_TAGTOOLONG, tag)); | |
45d1cae3 BB |
4006 | zc.zc_cookie = recursive; |
4007 | ||
4008 | if (zfs_ioctl(hdl, ZFS_IOC_RELEASE, &zc) != 0) { | |
4009 | char errbuf[ZFS_MAXNAMELEN+32]; | |
4010 | ||
4011 | /* | |
4012 | * if it was recursive, the one that actually failed will be in | |
4013 | * zc.zc_name. | |
4014 | */ | |
4015 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
428870ff BB |
4016 | "cannot release '%s' from '%s@%s'"), tag, zc.zc_name, |
4017 | snapname); | |
45d1cae3 BB |
4018 | switch (errno) { |
4019 | case ESRCH: | |
4020 | return (zfs_error(hdl, EZFS_REFTAG_RELE, errbuf)); | |
4021 | case ENOTSUP: | |
4022 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4023 | "pool must be upgraded")); | |
4024 | return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); | |
4025 | case EINVAL: | |
4026 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
4027 | default: | |
4028 | return (zfs_standard_error_fmt(hdl, errno, errbuf)); | |
4029 | } | |
4030 | } | |
4031 | ||
4032 | return (0); | |
4033 | } | |
428870ff | 4034 | |
428870ff BB |
4035 | uint64_t |
4036 | zvol_volsize_to_reservation(uint64_t volsize, nvlist_t *props) | |
4037 | { | |
4038 | uint64_t numdb; | |
4039 | uint64_t nblocks, volblocksize; | |
4040 | int ncopies; | |
4041 | char *strval; | |
4042 | ||
4043 | if (nvlist_lookup_string(props, | |
4044 | zfs_prop_to_name(ZFS_PROP_COPIES), &strval) == 0) | |
4045 | ncopies = atoi(strval); | |
4046 | else | |
4047 | ncopies = 1; | |
4048 | if (nvlist_lookup_uint64(props, | |
4049 | zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
4050 | &volblocksize) != 0) | |
4051 | volblocksize = ZVOL_DEFAULT_BLOCKSIZE; | |
4052 | nblocks = volsize/volblocksize; | |
4053 | /* start with metadnode L0-L6 */ | |
4054 | numdb = 7; | |
4055 | /* calculate number of indirects */ | |
4056 | while (nblocks > 1) { | |
4057 | nblocks += DNODES_PER_LEVEL - 1; | |
4058 | nblocks /= DNODES_PER_LEVEL; | |
4059 | numdb += nblocks; | |
4060 | } | |
4061 | numdb *= MIN(SPA_DVAS_PER_BP, ncopies + 1); | |
4062 | volsize *= ncopies; | |
4063 | /* | |
4064 | * this is exactly DN_MAX_INDBLKSHIFT when metadata isn't | |
4065 | * compressed, but in practice they compress down to about | |
4066 | * 1100 bytes | |
4067 | */ | |
4068 | numdb *= 1ULL << DN_MAX_INDBLKSHIFT; | |
4069 | volsize += numdb; | |
4070 | return (volsize); | |
4071 | } |