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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. |
f5fc4aca | 24 | * Copyright (c) 2011 by Delphix. All rights reserved. |
34dc7c2f BB |
25 | */ |
26 | ||
34dc7c2f BB |
27 | #include <ctype.h> |
28 | #include <errno.h> | |
34dc7c2f BB |
29 | #include <libintl.h> |
30 | #include <math.h> | |
31 | #include <stdio.h> | |
32 | #include <stdlib.h> | |
33 | #include <strings.h> | |
34 | #include <unistd.h> | |
35 | #include <stddef.h> | |
36 | #include <zone.h> | |
37 | #include <fcntl.h> | |
38 | #include <sys/mntent.h> | |
34dc7c2f | 39 | #include <sys/mount.h> |
34dc7c2f BB |
40 | #include <priv.h> |
41 | #include <pwd.h> | |
42 | #include <grp.h> | |
43 | #include <stddef.h> | |
44 | #include <ucred.h> | |
be160928 | 45 | #ifdef HAVE_IDMAP |
9babb374 BB |
46 | #include <idmap.h> |
47 | #include <aclutils.h> | |
45d1cae3 | 48 | #include <directory.h> |
be160928 | 49 | #endif /* HAVE_IDMAP */ |
34dc7c2f | 50 | |
428870ff | 51 | #include <sys/dnode.h> |
34dc7c2f BB |
52 | #include <sys/spa.h> |
53 | #include <sys/zap.h> | |
54 | #include <libzfs.h> | |
55 | ||
56 | #include "zfs_namecheck.h" | |
57 | #include "zfs_prop.h" | |
58 | #include "libzfs_impl.h" | |
59 | #include "zfs_deleg.h" | |
60 | ||
d603ed6c | 61 | static int zvol_create_link_common(libzfs_handle_t *, const char *, int); |
9babb374 BB |
62 | static int userquota_propname_decode(const char *propname, boolean_t zoned, |
63 | zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp); | |
34dc7c2f BB |
64 | |
65 | /* | |
66 | * Given a single type (not a mask of types), return the type in a human | |
67 | * readable form. | |
68 | */ | |
69 | const char * | |
70 | zfs_type_to_name(zfs_type_t type) | |
71 | { | |
72 | switch (type) { | |
73 | case ZFS_TYPE_FILESYSTEM: | |
74 | return (dgettext(TEXT_DOMAIN, "filesystem")); | |
75 | case ZFS_TYPE_SNAPSHOT: | |
76 | return (dgettext(TEXT_DOMAIN, "snapshot")); | |
77 | case ZFS_TYPE_VOLUME: | |
78 | return (dgettext(TEXT_DOMAIN, "volume")); | |
e75c13c3 BB |
79 | default: |
80 | break; | |
34dc7c2f BB |
81 | } |
82 | ||
83 | return (NULL); | |
84 | } | |
85 | ||
34dc7c2f BB |
86 | /* |
87 | * Validate a ZFS path. This is used even before trying to open the dataset, to | |
9babb374 BB |
88 | * provide a more meaningful error message. We call zfs_error_aux() to |
89 | * explain exactly why the name was not valid. | |
34dc7c2f | 90 | */ |
572e2857 | 91 | int |
34dc7c2f BB |
92 | zfs_validate_name(libzfs_handle_t *hdl, const char *path, int type, |
93 | boolean_t modifying) | |
94 | { | |
95 | namecheck_err_t why; | |
96 | char what; | |
97 | ||
98 | if (dataset_namecheck(path, &why, &what) != 0) { | |
99 | if (hdl != NULL) { | |
100 | switch (why) { | |
101 | case NAME_ERR_TOOLONG: | |
102 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
103 | "name is too long")); | |
104 | break; | |
105 | ||
106 | case NAME_ERR_LEADING_SLASH: | |
107 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
108 | "leading slash in name")); | |
109 | break; | |
110 | ||
111 | case NAME_ERR_EMPTY_COMPONENT: | |
112 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
113 | "empty component in name")); | |
114 | break; | |
115 | ||
116 | case NAME_ERR_TRAILING_SLASH: | |
117 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
118 | "trailing slash in name")); | |
119 | break; | |
120 | ||
121 | case NAME_ERR_INVALCHAR: | |
122 | zfs_error_aux(hdl, | |
123 | dgettext(TEXT_DOMAIN, "invalid character " | |
124 | "'%c' in name"), what); | |
125 | break; | |
126 | ||
127 | case NAME_ERR_MULTIPLE_AT: | |
128 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
129 | "multiple '@' delimiters in name")); | |
130 | break; | |
131 | ||
132 | case NAME_ERR_NOLETTER: | |
133 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
134 | "pool doesn't begin with a letter")); | |
135 | break; | |
136 | ||
137 | case NAME_ERR_RESERVED: | |
138 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
139 | "name is reserved")); | |
140 | break; | |
141 | ||
142 | case NAME_ERR_DISKLIKE: | |
143 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
144 | "reserved disk name")); | |
145 | break; | |
e75c13c3 BB |
146 | default: |
147 | break; | |
34dc7c2f BB |
148 | } |
149 | } | |
150 | ||
151 | return (0); | |
152 | } | |
153 | ||
154 | if (!(type & ZFS_TYPE_SNAPSHOT) && strchr(path, '@') != NULL) { | |
155 | if (hdl != NULL) | |
156 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
157 | "snapshot delimiter '@' in filesystem name")); | |
158 | return (0); | |
159 | } | |
160 | ||
161 | if (type == ZFS_TYPE_SNAPSHOT && strchr(path, '@') == NULL) { | |
162 | if (hdl != NULL) | |
163 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
164 | "missing '@' delimiter in snapshot name")); | |
165 | return (0); | |
166 | } | |
167 | ||
168 | if (modifying && strchr(path, '%') != NULL) { | |
169 | if (hdl != NULL) | |
170 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
171 | "invalid character %c in name"), '%'); | |
172 | return (0); | |
173 | } | |
174 | ||
175 | return (-1); | |
176 | } | |
177 | ||
178 | int | |
179 | zfs_name_valid(const char *name, zfs_type_t type) | |
180 | { | |
181 | if (type == ZFS_TYPE_POOL) | |
182 | return (zpool_name_valid(NULL, B_FALSE, name)); | |
183 | return (zfs_validate_name(NULL, name, type, B_FALSE)); | |
184 | } | |
185 | ||
186 | /* | |
187 | * This function takes the raw DSL properties, and filters out the user-defined | |
188 | * properties into a separate nvlist. | |
189 | */ | |
190 | static nvlist_t * | |
191 | process_user_props(zfs_handle_t *zhp, nvlist_t *props) | |
192 | { | |
193 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
194 | nvpair_t *elem; | |
195 | nvlist_t *propval; | |
196 | nvlist_t *nvl; | |
197 | ||
198 | if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) { | |
199 | (void) no_memory(hdl); | |
200 | return (NULL); | |
201 | } | |
202 | ||
203 | elem = NULL; | |
204 | while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { | |
205 | if (!zfs_prop_user(nvpair_name(elem))) | |
206 | continue; | |
207 | ||
208 | verify(nvpair_value_nvlist(elem, &propval) == 0); | |
209 | if (nvlist_add_nvlist(nvl, nvpair_name(elem), propval) != 0) { | |
210 | nvlist_free(nvl); | |
211 | (void) no_memory(hdl); | |
212 | return (NULL); | |
213 | } | |
214 | } | |
215 | ||
216 | return (nvl); | |
217 | } | |
218 | ||
b128c09f BB |
219 | static zpool_handle_t * |
220 | zpool_add_handle(zfs_handle_t *zhp, const char *pool_name) | |
221 | { | |
222 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
223 | zpool_handle_t *zph; | |
224 | ||
225 | if ((zph = zpool_open_canfail(hdl, pool_name)) != NULL) { | |
226 | if (hdl->libzfs_pool_handles != NULL) | |
227 | zph->zpool_next = hdl->libzfs_pool_handles; | |
228 | hdl->libzfs_pool_handles = zph; | |
229 | } | |
230 | return (zph); | |
231 | } | |
232 | ||
233 | static zpool_handle_t * | |
234 | zpool_find_handle(zfs_handle_t *zhp, const char *pool_name, int len) | |
235 | { | |
236 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
237 | zpool_handle_t *zph = hdl->libzfs_pool_handles; | |
238 | ||
239 | while ((zph != NULL) && | |
240 | (strncmp(pool_name, zpool_get_name(zph), len) != 0)) | |
241 | zph = zph->zpool_next; | |
242 | return (zph); | |
243 | } | |
244 | ||
245 | /* | |
246 | * Returns a handle to the pool that contains the provided dataset. | |
247 | * If a handle to that pool already exists then that handle is returned. | |
248 | * Otherwise, a new handle is created and added to the list of handles. | |
249 | */ | |
250 | static zpool_handle_t * | |
251 | zpool_handle(zfs_handle_t *zhp) | |
252 | { | |
253 | char *pool_name; | |
254 | int len; | |
255 | zpool_handle_t *zph; | |
256 | ||
257 | len = strcspn(zhp->zfs_name, "/@") + 1; | |
258 | pool_name = zfs_alloc(zhp->zfs_hdl, len); | |
259 | (void) strlcpy(pool_name, zhp->zfs_name, len); | |
260 | ||
261 | zph = zpool_find_handle(zhp, pool_name, len); | |
262 | if (zph == NULL) | |
263 | zph = zpool_add_handle(zhp, pool_name); | |
264 | ||
265 | free(pool_name); | |
266 | return (zph); | |
267 | } | |
268 | ||
269 | void | |
270 | zpool_free_handles(libzfs_handle_t *hdl) | |
271 | { | |
272 | zpool_handle_t *next, *zph = hdl->libzfs_pool_handles; | |
273 | ||
274 | while (zph != NULL) { | |
275 | next = zph->zpool_next; | |
276 | zpool_close(zph); | |
277 | zph = next; | |
278 | } | |
279 | hdl->libzfs_pool_handles = NULL; | |
280 | } | |
281 | ||
34dc7c2f BB |
282 | /* |
283 | * Utility function to gather stats (objset and zpl) for the given object. | |
284 | */ | |
285 | static int | |
fb5f0bc8 | 286 | get_stats_ioctl(zfs_handle_t *zhp, zfs_cmd_t *zc) |
34dc7c2f | 287 | { |
34dc7c2f | 288 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
34dc7c2f | 289 | |
fb5f0bc8 | 290 | (void) strlcpy(zc->zc_name, zhp->zfs_name, sizeof (zc->zc_name)); |
34dc7c2f | 291 | |
fb5f0bc8 | 292 | while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, zc) != 0) { |
34dc7c2f | 293 | if (errno == ENOMEM) { |
fb5f0bc8 | 294 | if (zcmd_expand_dst_nvlist(hdl, zc) != 0) { |
34dc7c2f BB |
295 | return (-1); |
296 | } | |
297 | } else { | |
34dc7c2f BB |
298 | return (-1); |
299 | } | |
300 | } | |
fb5f0bc8 BB |
301 | return (0); |
302 | } | |
34dc7c2f | 303 | |
428870ff BB |
304 | /* |
305 | * Utility function to get the received properties of the given object. | |
306 | */ | |
307 | static int | |
308 | get_recvd_props_ioctl(zfs_handle_t *zhp) | |
309 | { | |
310 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
311 | nvlist_t *recvdprops; | |
2598c001 | 312 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
428870ff BB |
313 | int err; |
314 | ||
315 | if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) | |
316 | return (-1); | |
317 | ||
318 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
319 | ||
320 | while (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_RECVD_PROPS, &zc) != 0) { | |
321 | if (errno == ENOMEM) { | |
322 | if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) { | |
323 | return (-1); | |
324 | } | |
325 | } else { | |
326 | zcmd_free_nvlists(&zc); | |
327 | return (-1); | |
328 | } | |
329 | } | |
330 | ||
331 | err = zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &recvdprops); | |
332 | zcmd_free_nvlists(&zc); | |
333 | if (err != 0) | |
334 | return (-1); | |
335 | ||
336 | nvlist_free(zhp->zfs_recvd_props); | |
337 | zhp->zfs_recvd_props = recvdprops; | |
338 | ||
339 | return (0); | |
340 | } | |
341 | ||
fb5f0bc8 BB |
342 | static int |
343 | put_stats_zhdl(zfs_handle_t *zhp, zfs_cmd_t *zc) | |
344 | { | |
345 | nvlist_t *allprops, *userprops; | |
34dc7c2f | 346 | |
fb5f0bc8 BB |
347 | zhp->zfs_dmustats = zc->zc_objset_stats; /* structure assignment */ |
348 | ||
349 | if (zcmd_read_dst_nvlist(zhp->zfs_hdl, zc, &allprops) != 0) { | |
34dc7c2f BB |
350 | return (-1); |
351 | } | |
352 | ||
9babb374 BB |
353 | /* |
354 | * XXX Why do we store the user props separately, in addition to | |
355 | * storing them in zfs_props? | |
356 | */ | |
34dc7c2f BB |
357 | if ((userprops = process_user_props(zhp, allprops)) == NULL) { |
358 | nvlist_free(allprops); | |
359 | return (-1); | |
360 | } | |
361 | ||
362 | nvlist_free(zhp->zfs_props); | |
363 | nvlist_free(zhp->zfs_user_props); | |
364 | ||
365 | zhp->zfs_props = allprops; | |
366 | zhp->zfs_user_props = userprops; | |
367 | ||
368 | return (0); | |
369 | } | |
370 | ||
fb5f0bc8 BB |
371 | static int |
372 | get_stats(zfs_handle_t *zhp) | |
373 | { | |
374 | int rc = 0; | |
2598c001 | 375 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
fb5f0bc8 BB |
376 | |
377 | if (zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) | |
378 | return (-1); | |
379 | if (get_stats_ioctl(zhp, &zc) != 0) | |
380 | rc = -1; | |
381 | else if (put_stats_zhdl(zhp, &zc) != 0) | |
382 | rc = -1; | |
383 | zcmd_free_nvlists(&zc); | |
384 | return (rc); | |
385 | } | |
386 | ||
34dc7c2f BB |
387 | /* |
388 | * Refresh the properties currently stored in the handle. | |
389 | */ | |
390 | void | |
391 | zfs_refresh_properties(zfs_handle_t *zhp) | |
392 | { | |
393 | (void) get_stats(zhp); | |
394 | } | |
395 | ||
396 | /* | |
397 | * Makes a handle from the given dataset name. Used by zfs_open() and | |
398 | * zfs_iter_* to create child handles on the fly. | |
399 | */ | |
fb5f0bc8 BB |
400 | static int |
401 | make_dataset_handle_common(zfs_handle_t *zhp, zfs_cmd_t *zc) | |
34dc7c2f | 402 | { |
428870ff | 403 | if (put_stats_zhdl(zhp, zc) != 0) |
fb5f0bc8 | 404 | return (-1); |
34dc7c2f BB |
405 | |
406 | /* | |
407 | * We've managed to open the dataset and gather statistics. Determine | |
408 | * the high-level type. | |
409 | */ | |
410 | if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) | |
411 | zhp->zfs_head_type = ZFS_TYPE_VOLUME; | |
412 | else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) | |
413 | zhp->zfs_head_type = ZFS_TYPE_FILESYSTEM; | |
414 | else | |
415 | abort(); | |
416 | ||
417 | if (zhp->zfs_dmustats.dds_is_snapshot) | |
418 | zhp->zfs_type = ZFS_TYPE_SNAPSHOT; | |
419 | else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZVOL) | |
420 | zhp->zfs_type = ZFS_TYPE_VOLUME; | |
421 | else if (zhp->zfs_dmustats.dds_type == DMU_OST_ZFS) | |
422 | zhp->zfs_type = ZFS_TYPE_FILESYSTEM; | |
423 | else | |
424 | abort(); /* we should never see any other types */ | |
425 | ||
428870ff BB |
426 | if ((zhp->zpool_hdl = zpool_handle(zhp)) == NULL) |
427 | return (-1); | |
428 | ||
fb5f0bc8 BB |
429 | return (0); |
430 | } | |
431 | ||
432 | zfs_handle_t * | |
433 | make_dataset_handle(libzfs_handle_t *hdl, const char *path) | |
434 | { | |
2598c001 | 435 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
fb5f0bc8 BB |
436 | |
437 | zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); | |
438 | ||
439 | if (zhp == NULL) | |
440 | return (NULL); | |
441 | ||
442 | zhp->zfs_hdl = hdl; | |
443 | (void) strlcpy(zhp->zfs_name, path, sizeof (zhp->zfs_name)); | |
444 | if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) { | |
445 | free(zhp); | |
446 | return (NULL); | |
447 | } | |
448 | if (get_stats_ioctl(zhp, &zc) == -1) { | |
449 | zcmd_free_nvlists(&zc); | |
450 | free(zhp); | |
451 | return (NULL); | |
452 | } | |
453 | if (make_dataset_handle_common(zhp, &zc) == -1) { | |
454 | free(zhp); | |
455 | zhp = NULL; | |
456 | } | |
457 | zcmd_free_nvlists(&zc); | |
458 | return (zhp); | |
459 | } | |
460 | ||
461 | static zfs_handle_t * | |
462 | make_dataset_handle_zc(libzfs_handle_t *hdl, zfs_cmd_t *zc) | |
463 | { | |
464 | zfs_handle_t *zhp = calloc(sizeof (zfs_handle_t), 1); | |
465 | ||
466 | if (zhp == NULL) | |
467 | return (NULL); | |
468 | ||
469 | zhp->zfs_hdl = hdl; | |
470 | (void) strlcpy(zhp->zfs_name, zc->zc_name, sizeof (zhp->zfs_name)); | |
471 | if (make_dataset_handle_common(zhp, zc) == -1) { | |
472 | free(zhp); | |
473 | return (NULL); | |
474 | } | |
34dc7c2f BB |
475 | return (zhp); |
476 | } | |
477 | ||
478 | /* | |
479 | * Opens the given snapshot, filesystem, or volume. The 'types' | |
480 | * argument is a mask of acceptable types. The function will print an | |
481 | * appropriate error message and return NULL if it can't be opened. | |
482 | */ | |
483 | zfs_handle_t * | |
484 | zfs_open(libzfs_handle_t *hdl, const char *path, int types) | |
485 | { | |
486 | zfs_handle_t *zhp; | |
487 | char errbuf[1024]; | |
488 | ||
489 | (void) snprintf(errbuf, sizeof (errbuf), | |
490 | dgettext(TEXT_DOMAIN, "cannot open '%s'"), path); | |
491 | ||
492 | /* | |
493 | * Validate the name before we even try to open it. | |
494 | */ | |
495 | if (!zfs_validate_name(hdl, path, ZFS_TYPE_DATASET, B_FALSE)) { | |
496 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
497 | "invalid dataset name")); | |
498 | (void) zfs_error(hdl, EZFS_INVALIDNAME, errbuf); | |
499 | return (NULL); | |
500 | } | |
501 | ||
502 | /* | |
503 | * Try to get stats for the dataset, which will tell us if it exists. | |
504 | */ | |
505 | errno = 0; | |
506 | if ((zhp = make_dataset_handle(hdl, path)) == NULL) { | |
507 | (void) zfs_standard_error(hdl, errno, errbuf); | |
508 | return (NULL); | |
509 | } | |
510 | ||
511 | if (!(types & zhp->zfs_type)) { | |
512 | (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); | |
513 | zfs_close(zhp); | |
514 | return (NULL); | |
515 | } | |
516 | ||
517 | return (zhp); | |
518 | } | |
519 | ||
520 | /* | |
521 | * Release a ZFS handle. Nothing to do but free the associated memory. | |
522 | */ | |
523 | void | |
524 | zfs_close(zfs_handle_t *zhp) | |
525 | { | |
526 | if (zhp->zfs_mntopts) | |
527 | free(zhp->zfs_mntopts); | |
528 | nvlist_free(zhp->zfs_props); | |
529 | nvlist_free(zhp->zfs_user_props); | |
428870ff | 530 | nvlist_free(zhp->zfs_recvd_props); |
34dc7c2f BB |
531 | free(zhp); |
532 | } | |
533 | ||
fb5f0bc8 BB |
534 | typedef struct mnttab_node { |
535 | struct mnttab mtn_mt; | |
536 | avl_node_t mtn_node; | |
537 | } mnttab_node_t; | |
538 | ||
539 | static int | |
540 | libzfs_mnttab_cache_compare(const void *arg1, const void *arg2) | |
541 | { | |
542 | const mnttab_node_t *mtn1 = arg1; | |
543 | const mnttab_node_t *mtn2 = arg2; | |
544 | int rv; | |
545 | ||
546 | rv = strcmp(mtn1->mtn_mt.mnt_special, mtn2->mtn_mt.mnt_special); | |
547 | ||
548 | if (rv == 0) | |
549 | return (0); | |
550 | return (rv > 0 ? 1 : -1); | |
551 | } | |
552 | ||
553 | void | |
554 | libzfs_mnttab_init(libzfs_handle_t *hdl) | |
555 | { | |
fb5f0bc8 BB |
556 | assert(avl_numnodes(&hdl->libzfs_mnttab_cache) == 0); |
557 | avl_create(&hdl->libzfs_mnttab_cache, libzfs_mnttab_cache_compare, | |
558 | sizeof (mnttab_node_t), offsetof(mnttab_node_t, mtn_node)); | |
9babb374 BB |
559 | } |
560 | ||
561 | void | |
562 | libzfs_mnttab_update(libzfs_handle_t *hdl) | |
563 | { | |
564 | struct mnttab entry; | |
fb5f0bc8 BB |
565 | |
566 | rewind(hdl->libzfs_mnttab); | |
567 | while (getmntent(hdl->libzfs_mnttab, &entry) == 0) { | |
568 | mnttab_node_t *mtn; | |
569 | ||
570 | if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) | |
571 | continue; | |
572 | mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); | |
573 | mtn->mtn_mt.mnt_special = zfs_strdup(hdl, entry.mnt_special); | |
574 | mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, entry.mnt_mountp); | |
575 | mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, entry.mnt_fstype); | |
576 | mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, entry.mnt_mntopts); | |
577 | avl_add(&hdl->libzfs_mnttab_cache, mtn); | |
578 | } | |
579 | } | |
580 | ||
581 | void | |
582 | libzfs_mnttab_fini(libzfs_handle_t *hdl) | |
583 | { | |
584 | void *cookie = NULL; | |
585 | mnttab_node_t *mtn; | |
586 | ||
c65aa5b2 | 587 | while ((mtn = avl_destroy_nodes(&hdl->libzfs_mnttab_cache, &cookie))) { |
fb5f0bc8 BB |
588 | free(mtn->mtn_mt.mnt_special); |
589 | free(mtn->mtn_mt.mnt_mountp); | |
590 | free(mtn->mtn_mt.mnt_fstype); | |
591 | free(mtn->mtn_mt.mnt_mntopts); | |
592 | free(mtn); | |
593 | } | |
594 | avl_destroy(&hdl->libzfs_mnttab_cache); | |
595 | } | |
596 | ||
9babb374 BB |
597 | void |
598 | libzfs_mnttab_cache(libzfs_handle_t *hdl, boolean_t enable) | |
599 | { | |
600 | hdl->libzfs_mnttab_enable = enable; | |
601 | } | |
602 | ||
fb5f0bc8 BB |
603 | int |
604 | libzfs_mnttab_find(libzfs_handle_t *hdl, const char *fsname, | |
605 | struct mnttab *entry) | |
606 | { | |
607 | mnttab_node_t find; | |
608 | mnttab_node_t *mtn; | |
609 | ||
9babb374 BB |
610 | if (!hdl->libzfs_mnttab_enable) { |
611 | struct mnttab srch = { 0 }; | |
612 | ||
613 | if (avl_numnodes(&hdl->libzfs_mnttab_cache)) | |
614 | libzfs_mnttab_fini(hdl); | |
615 | rewind(hdl->libzfs_mnttab); | |
616 | srch.mnt_special = (char *)fsname; | |
617 | srch.mnt_fstype = MNTTYPE_ZFS; | |
618 | if (getmntany(hdl->libzfs_mnttab, entry, &srch) == 0) | |
619 | return (0); | |
620 | else | |
621 | return (ENOENT); | |
622 | } | |
623 | ||
fb5f0bc8 | 624 | if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) |
9babb374 | 625 | libzfs_mnttab_update(hdl); |
fb5f0bc8 BB |
626 | |
627 | find.mtn_mt.mnt_special = (char *)fsname; | |
628 | mtn = avl_find(&hdl->libzfs_mnttab_cache, &find, NULL); | |
629 | if (mtn) { | |
630 | *entry = mtn->mtn_mt; | |
631 | return (0); | |
632 | } | |
633 | return (ENOENT); | |
634 | } | |
635 | ||
636 | void | |
637 | libzfs_mnttab_add(libzfs_handle_t *hdl, const char *special, | |
638 | const char *mountp, const char *mntopts) | |
639 | { | |
640 | mnttab_node_t *mtn; | |
641 | ||
642 | if (avl_numnodes(&hdl->libzfs_mnttab_cache) == 0) | |
643 | return; | |
644 | mtn = zfs_alloc(hdl, sizeof (mnttab_node_t)); | |
645 | mtn->mtn_mt.mnt_special = zfs_strdup(hdl, special); | |
646 | mtn->mtn_mt.mnt_mountp = zfs_strdup(hdl, mountp); | |
647 | mtn->mtn_mt.mnt_fstype = zfs_strdup(hdl, MNTTYPE_ZFS); | |
648 | mtn->mtn_mt.mnt_mntopts = zfs_strdup(hdl, mntopts); | |
649 | avl_add(&hdl->libzfs_mnttab_cache, mtn); | |
650 | } | |
651 | ||
652 | void | |
653 | libzfs_mnttab_remove(libzfs_handle_t *hdl, const char *fsname) | |
654 | { | |
655 | mnttab_node_t find; | |
656 | mnttab_node_t *ret; | |
657 | ||
658 | find.mtn_mt.mnt_special = (char *)fsname; | |
c65aa5b2 | 659 | if ((ret = avl_find(&hdl->libzfs_mnttab_cache, (void *)&find, NULL))) { |
fb5f0bc8 BB |
660 | avl_remove(&hdl->libzfs_mnttab_cache, ret); |
661 | free(ret->mtn_mt.mnt_special); | |
662 | free(ret->mtn_mt.mnt_mountp); | |
663 | free(ret->mtn_mt.mnt_fstype); | |
664 | free(ret->mtn_mt.mnt_mntopts); | |
665 | free(ret); | |
666 | } | |
667 | } | |
668 | ||
34dc7c2f BB |
669 | int |
670 | zfs_spa_version(zfs_handle_t *zhp, int *spa_version) | |
671 | { | |
b128c09f | 672 | zpool_handle_t *zpool_handle = zhp->zpool_hdl; |
34dc7c2f | 673 | |
34dc7c2f BB |
674 | if (zpool_handle == NULL) |
675 | return (-1); | |
676 | ||
677 | *spa_version = zpool_get_prop_int(zpool_handle, | |
678 | ZPOOL_PROP_VERSION, NULL); | |
34dc7c2f BB |
679 | return (0); |
680 | } | |
681 | ||
682 | /* | |
683 | * The choice of reservation property depends on the SPA version. | |
684 | */ | |
685 | static int | |
686 | zfs_which_resv_prop(zfs_handle_t *zhp, zfs_prop_t *resv_prop) | |
687 | { | |
688 | int spa_version; | |
689 | ||
690 | if (zfs_spa_version(zhp, &spa_version) < 0) | |
691 | return (-1); | |
692 | ||
693 | if (spa_version >= SPA_VERSION_REFRESERVATION) | |
694 | *resv_prop = ZFS_PROP_REFRESERVATION; | |
695 | else | |
696 | *resv_prop = ZFS_PROP_RESERVATION; | |
697 | ||
698 | return (0); | |
699 | } | |
700 | ||
701 | /* | |
702 | * Given an nvlist of properties to set, validates that they are correct, and | |
703 | * parses any numeric properties (index, boolean, etc) if they are specified as | |
704 | * strings. | |
705 | */ | |
b128c09f BB |
706 | nvlist_t * |
707 | zfs_valid_proplist(libzfs_handle_t *hdl, zfs_type_t type, nvlist_t *nvl, | |
34dc7c2f BB |
708 | uint64_t zoned, zfs_handle_t *zhp, const char *errbuf) |
709 | { | |
710 | nvpair_t *elem; | |
711 | uint64_t intval; | |
712 | char *strval; | |
713 | zfs_prop_t prop; | |
714 | nvlist_t *ret; | |
715 | int chosen_normal = -1; | |
716 | int chosen_utf = -1; | |
717 | ||
34dc7c2f BB |
718 | if (nvlist_alloc(&ret, NV_UNIQUE_NAME, 0) != 0) { |
719 | (void) no_memory(hdl); | |
720 | return (NULL); | |
721 | } | |
722 | ||
9babb374 BB |
723 | /* |
724 | * Make sure this property is valid and applies to this type. | |
725 | */ | |
726 | ||
34dc7c2f BB |
727 | elem = NULL; |
728 | while ((elem = nvlist_next_nvpair(nvl, elem)) != NULL) { | |
729 | const char *propname = nvpair_name(elem); | |
730 | ||
9babb374 BB |
731 | prop = zfs_name_to_prop(propname); |
732 | if (prop == ZPROP_INVAL && zfs_prop_user(propname)) { | |
34dc7c2f | 733 | /* |
9babb374 | 734 | * This is a user property: make sure it's a |
34dc7c2f BB |
735 | * string, and that it's less than ZAP_MAXNAMELEN. |
736 | */ | |
737 | if (nvpair_type(elem) != DATA_TYPE_STRING) { | |
738 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
739 | "'%s' must be a string"), propname); | |
740 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
741 | goto error; | |
742 | } | |
743 | ||
744 | if (strlen(nvpair_name(elem)) >= ZAP_MAXNAMELEN) { | |
745 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
746 | "property name '%s' is too long"), | |
747 | propname); | |
748 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
749 | goto error; | |
750 | } | |
751 | ||
752 | (void) nvpair_value_string(elem, &strval); | |
753 | if (nvlist_add_string(ret, propname, strval) != 0) { | |
754 | (void) no_memory(hdl); | |
755 | goto error; | |
756 | } | |
757 | continue; | |
758 | } | |
759 | ||
9babb374 BB |
760 | /* |
761 | * Currently, only user properties can be modified on | |
762 | * snapshots. | |
763 | */ | |
b128c09f BB |
764 | if (type == ZFS_TYPE_SNAPSHOT) { |
765 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
766 | "this property can not be modified for snapshots")); | |
767 | (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); | |
768 | goto error; | |
769 | } | |
770 | ||
9babb374 BB |
771 | if (prop == ZPROP_INVAL && zfs_prop_userquota(propname)) { |
772 | zfs_userquota_prop_t uqtype; | |
773 | char newpropname[128]; | |
774 | char domain[128]; | |
775 | uint64_t rid; | |
776 | uint64_t valary[3]; | |
777 | ||
778 | if (userquota_propname_decode(propname, zoned, | |
779 | &uqtype, domain, sizeof (domain), &rid) != 0) { | |
780 | zfs_error_aux(hdl, | |
781 | dgettext(TEXT_DOMAIN, | |
782 | "'%s' has an invalid user/group name"), | |
783 | propname); | |
784 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
785 | goto error; | |
786 | } | |
787 | ||
788 | if (uqtype != ZFS_PROP_USERQUOTA && | |
789 | uqtype != ZFS_PROP_GROUPQUOTA) { | |
790 | zfs_error_aux(hdl, | |
791 | dgettext(TEXT_DOMAIN, "'%s' is readonly"), | |
792 | propname); | |
793 | (void) zfs_error(hdl, EZFS_PROPREADONLY, | |
794 | errbuf); | |
795 | goto error; | |
796 | } | |
797 | ||
798 | if (nvpair_type(elem) == DATA_TYPE_STRING) { | |
799 | (void) nvpair_value_string(elem, &strval); | |
800 | if (strcmp(strval, "none") == 0) { | |
801 | intval = 0; | |
802 | } else if (zfs_nicestrtonum(hdl, | |
803 | strval, &intval) != 0) { | |
804 | (void) zfs_error(hdl, | |
805 | EZFS_BADPROP, errbuf); | |
806 | goto error; | |
807 | } | |
808 | } else if (nvpair_type(elem) == | |
809 | DATA_TYPE_UINT64) { | |
810 | (void) nvpair_value_uint64(elem, &intval); | |
811 | if (intval == 0) { | |
812 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
813 | "use 'none' to disable " | |
814 | "userquota/groupquota")); | |
815 | goto error; | |
816 | } | |
817 | } else { | |
818 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
819 | "'%s' must be a number"), propname); | |
820 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
821 | goto error; | |
822 | } | |
823 | ||
428870ff BB |
824 | /* |
825 | * Encode the prop name as | |
826 | * userquota@<hex-rid>-domain, to make it easy | |
827 | * for the kernel to decode. | |
828 | */ | |
9babb374 | 829 | (void) snprintf(newpropname, sizeof (newpropname), |
428870ff BB |
830 | "%s%llx-%s", zfs_userquota_prop_prefixes[uqtype], |
831 | (longlong_t)rid, domain); | |
9babb374 BB |
832 | valary[0] = uqtype; |
833 | valary[1] = rid; | |
834 | valary[2] = intval; | |
835 | if (nvlist_add_uint64_array(ret, newpropname, | |
836 | valary, 3) != 0) { | |
837 | (void) no_memory(hdl); | |
838 | goto error; | |
839 | } | |
840 | continue; | |
841 | } | |
842 | ||
843 | if (prop == ZPROP_INVAL) { | |
844 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
845 | "invalid property '%s'"), propname); | |
846 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
847 | goto error; | |
848 | } | |
849 | ||
34dc7c2f BB |
850 | if (!zfs_prop_valid_for_type(prop, type)) { |
851 | zfs_error_aux(hdl, | |
852 | dgettext(TEXT_DOMAIN, "'%s' does not " | |
853 | "apply to datasets of this type"), propname); | |
854 | (void) zfs_error(hdl, EZFS_PROPTYPE, errbuf); | |
855 | goto error; | |
856 | } | |
857 | ||
858 | if (zfs_prop_readonly(prop) && | |
859 | (!zfs_prop_setonce(prop) || zhp != NULL)) { | |
860 | zfs_error_aux(hdl, | |
861 | dgettext(TEXT_DOMAIN, "'%s' is readonly"), | |
862 | propname); | |
863 | (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); | |
864 | goto error; | |
865 | } | |
866 | ||
867 | if (zprop_parse_value(hdl, elem, prop, type, ret, | |
868 | &strval, &intval, errbuf) != 0) | |
869 | goto error; | |
870 | ||
871 | /* | |
872 | * Perform some additional checks for specific properties. | |
873 | */ | |
874 | switch (prop) { | |
875 | case ZFS_PROP_VERSION: | |
876 | { | |
877 | int version; | |
878 | ||
879 | if (zhp == NULL) | |
880 | break; | |
881 | version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); | |
882 | if (intval < version) { | |
883 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
884 | "Can not downgrade; already at version %u"), | |
885 | version); | |
886 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
887 | goto error; | |
888 | } | |
889 | break; | |
890 | } | |
891 | ||
892 | case ZFS_PROP_RECORDSIZE: | |
893 | case ZFS_PROP_VOLBLOCKSIZE: | |
894 | /* must be power of two within SPA_{MIN,MAX}BLOCKSIZE */ | |
895 | if (intval < SPA_MINBLOCKSIZE || | |
896 | intval > SPA_MAXBLOCKSIZE || !ISP2(intval)) { | |
897 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
898 | "'%s' must be power of 2 from %u " | |
899 | "to %uk"), propname, | |
900 | (uint_t)SPA_MINBLOCKSIZE, | |
901 | (uint_t)SPA_MAXBLOCKSIZE >> 10); | |
902 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
903 | goto error; | |
904 | } | |
905 | break; | |
906 | ||
428870ff BB |
907 | case ZFS_PROP_MLSLABEL: |
908 | { | |
d2c15e84 | 909 | #ifdef HAVE_MLSLABEL |
428870ff BB |
910 | /* |
911 | * Verify the mlslabel string and convert to | |
912 | * internal hex label string. | |
913 | */ | |
914 | ||
915 | m_label_t *new_sl; | |
916 | char *hex = NULL; /* internal label string */ | |
917 | ||
918 | /* Default value is already OK. */ | |
919 | if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) | |
920 | break; | |
921 | ||
922 | /* Verify the label can be converted to binary form */ | |
923 | if (((new_sl = m_label_alloc(MAC_LABEL)) == NULL) || | |
924 | (str_to_label(strval, &new_sl, MAC_LABEL, | |
925 | L_NO_CORRECTION, NULL) == -1)) { | |
926 | goto badlabel; | |
34dc7c2f BB |
927 | } |
928 | ||
428870ff BB |
929 | /* Now translate to hex internal label string */ |
930 | if (label_to_str(new_sl, &hex, M_INTERNAL, | |
931 | DEF_NAMES) != 0) { | |
932 | if (hex) | |
933 | free(hex); | |
934 | goto badlabel; | |
935 | } | |
936 | m_label_free(new_sl); | |
937 | ||
938 | /* If string is already in internal form, we're done. */ | |
939 | if (strcmp(strval, hex) == 0) { | |
940 | free(hex); | |
941 | break; | |
942 | } | |
943 | ||
944 | /* Replace the label string with the internal form. */ | |
945 | (void) nvlist_remove(ret, zfs_prop_to_name(prop), | |
946 | DATA_TYPE_STRING); | |
947 | verify(nvlist_add_string(ret, zfs_prop_to_name(prop), | |
948 | hex) == 0); | |
949 | free(hex); | |
950 | ||
34dc7c2f BB |
951 | break; |
952 | ||
428870ff BB |
953 | badlabel: |
954 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
955 | "invalid mlslabel '%s'"), strval); | |
956 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
957 | m_label_free(new_sl); /* OK if null */ | |
958 | goto error; | |
d2c15e84 BB |
959 | #else |
960 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
961 | "mlslabels are unsupported")); | |
962 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
963 | goto error; | |
964 | #endif /* HAVE_MLSLABEL */ | |
428870ff BB |
965 | } |
966 | ||
34dc7c2f BB |
967 | case ZFS_PROP_MOUNTPOINT: |
968 | { | |
969 | namecheck_err_t why; | |
970 | ||
971 | if (strcmp(strval, ZFS_MOUNTPOINT_NONE) == 0 || | |
972 | strcmp(strval, ZFS_MOUNTPOINT_LEGACY) == 0) | |
973 | break; | |
974 | ||
975 | if (mountpoint_namecheck(strval, &why)) { | |
976 | switch (why) { | |
977 | case NAME_ERR_LEADING_SLASH: | |
978 | zfs_error_aux(hdl, | |
979 | dgettext(TEXT_DOMAIN, | |
980 | "'%s' must be an absolute path, " | |
981 | "'none', or 'legacy'"), propname); | |
982 | break; | |
983 | case NAME_ERR_TOOLONG: | |
984 | zfs_error_aux(hdl, | |
985 | dgettext(TEXT_DOMAIN, | |
986 | "component of '%s' is too long"), | |
987 | propname); | |
988 | break; | |
e75c13c3 BB |
989 | default: |
990 | break; | |
34dc7c2f BB |
991 | } |
992 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
993 | goto error; | |
994 | } | |
995 | } | |
996 | ||
997 | /*FALLTHRU*/ | |
998 | ||
999 | case ZFS_PROP_SHARESMB: | |
1000 | case ZFS_PROP_SHARENFS: | |
1001 | /* | |
1002 | * For the mountpoint and sharenfs or sharesmb | |
1003 | * properties, check if it can be set in a | |
1004 | * global/non-global zone based on | |
1005 | * the zoned property value: | |
1006 | * | |
1007 | * global zone non-global zone | |
1008 | * -------------------------------------------------- | |
1009 | * zoned=on mountpoint (no) mountpoint (yes) | |
1010 | * sharenfs (no) sharenfs (no) | |
1011 | * sharesmb (no) sharesmb (no) | |
1012 | * | |
1013 | * zoned=off mountpoint (yes) N/A | |
1014 | * sharenfs (yes) | |
1015 | * sharesmb (yes) | |
1016 | */ | |
1017 | if (zoned) { | |
1018 | if (getzoneid() == GLOBAL_ZONEID) { | |
1019 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1020 | "'%s' cannot be set on " | |
1021 | "dataset in a non-global zone"), | |
1022 | propname); | |
1023 | (void) zfs_error(hdl, EZFS_ZONED, | |
1024 | errbuf); | |
1025 | goto error; | |
1026 | } else if (prop == ZFS_PROP_SHARENFS || | |
1027 | prop == ZFS_PROP_SHARESMB) { | |
1028 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1029 | "'%s' cannot be set in " | |
1030 | "a non-global zone"), propname); | |
1031 | (void) zfs_error(hdl, EZFS_ZONED, | |
1032 | errbuf); | |
1033 | goto error; | |
1034 | } | |
1035 | } else if (getzoneid() != GLOBAL_ZONEID) { | |
1036 | /* | |
1037 | * If zoned property is 'off', this must be in | |
9babb374 | 1038 | * a global zone. If not, something is wrong. |
34dc7c2f BB |
1039 | */ |
1040 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1041 | "'%s' cannot be set while dataset " | |
1042 | "'zoned' property is set"), propname); | |
1043 | (void) zfs_error(hdl, EZFS_ZONED, errbuf); | |
1044 | goto error; | |
1045 | } | |
1046 | ||
1047 | /* | |
1048 | * At this point, it is legitimate to set the | |
1049 | * property. Now we want to make sure that the | |
1050 | * property value is valid if it is sharenfs. | |
1051 | */ | |
1052 | if ((prop == ZFS_PROP_SHARENFS || | |
1053 | prop == ZFS_PROP_SHARESMB) && | |
1054 | strcmp(strval, "on") != 0 && | |
1055 | strcmp(strval, "off") != 0) { | |
1056 | zfs_share_proto_t proto; | |
1057 | ||
1058 | if (prop == ZFS_PROP_SHARESMB) | |
1059 | proto = PROTO_SMB; | |
1060 | else | |
1061 | proto = PROTO_NFS; | |
1062 | ||
1063 | /* | |
1064 | * Must be an valid sharing protocol | |
1065 | * option string so init the libshare | |
1066 | * in order to enable the parser and | |
1067 | * then parse the options. We use the | |
1068 | * control API since we don't care about | |
1069 | * the current configuration and don't | |
1070 | * want the overhead of loading it | |
1071 | * until we actually do something. | |
1072 | */ | |
1073 | ||
1074 | if (zfs_init_libshare(hdl, | |
1075 | SA_INIT_CONTROL_API) != SA_OK) { | |
1076 | /* | |
1077 | * An error occurred so we can't do | |
1078 | * anything | |
1079 | */ | |
1080 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1081 | "'%s' cannot be set: problem " | |
1082 | "in share initialization"), | |
1083 | propname); | |
1084 | (void) zfs_error(hdl, EZFS_BADPROP, | |
1085 | errbuf); | |
1086 | goto error; | |
1087 | } | |
1088 | ||
1089 | if (zfs_parse_options(strval, proto) != SA_OK) { | |
1090 | /* | |
1091 | * There was an error in parsing so | |
1092 | * deal with it by issuing an error | |
1093 | * message and leaving after | |
1094 | * uninitializing the the libshare | |
1095 | * interface. | |
1096 | */ | |
1097 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1098 | "'%s' cannot be set to invalid " | |
1099 | "options"), propname); | |
1100 | (void) zfs_error(hdl, EZFS_BADPROP, | |
1101 | errbuf); | |
1102 | zfs_uninit_libshare(hdl); | |
1103 | goto error; | |
1104 | } | |
1105 | zfs_uninit_libshare(hdl); | |
1106 | } | |
1107 | ||
1108 | break; | |
1109 | case ZFS_PROP_UTF8ONLY: | |
1110 | chosen_utf = (int)intval; | |
1111 | break; | |
1112 | case ZFS_PROP_NORMALIZE: | |
1113 | chosen_normal = (int)intval; | |
1114 | break; | |
e75c13c3 BB |
1115 | default: |
1116 | break; | |
34dc7c2f BB |
1117 | } |
1118 | ||
1119 | /* | |
1120 | * For changes to existing volumes, we have some additional | |
1121 | * checks to enforce. | |
1122 | */ | |
1123 | if (type == ZFS_TYPE_VOLUME && zhp != NULL) { | |
1124 | uint64_t volsize = zfs_prop_get_int(zhp, | |
1125 | ZFS_PROP_VOLSIZE); | |
1126 | uint64_t blocksize = zfs_prop_get_int(zhp, | |
1127 | ZFS_PROP_VOLBLOCKSIZE); | |
1128 | char buf[64]; | |
1129 | ||
1130 | switch (prop) { | |
1131 | case ZFS_PROP_RESERVATION: | |
1132 | case ZFS_PROP_REFRESERVATION: | |
1133 | if (intval > volsize) { | |
1134 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1135 | "'%s' is greater than current " | |
1136 | "volume size"), propname); | |
1137 | (void) zfs_error(hdl, EZFS_BADPROP, | |
1138 | errbuf); | |
1139 | goto error; | |
1140 | } | |
1141 | break; | |
1142 | ||
1143 | case ZFS_PROP_VOLSIZE: | |
1144 | if (intval % blocksize != 0) { | |
1145 | zfs_nicenum(blocksize, buf, | |
1146 | sizeof (buf)); | |
1147 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1148 | "'%s' must be a multiple of " | |
1149 | "volume block size (%s)"), | |
1150 | propname, buf); | |
1151 | (void) zfs_error(hdl, EZFS_BADPROP, | |
1152 | errbuf); | |
1153 | goto error; | |
1154 | } | |
1155 | ||
1156 | if (intval == 0) { | |
1157 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1158 | "'%s' cannot be zero"), | |
1159 | propname); | |
1160 | (void) zfs_error(hdl, EZFS_BADPROP, | |
1161 | errbuf); | |
1162 | goto error; | |
1163 | } | |
1164 | break; | |
e75c13c3 BB |
1165 | default: |
1166 | break; | |
34dc7c2f BB |
1167 | } |
1168 | } | |
1169 | } | |
1170 | ||
1171 | /* | |
1172 | * If normalization was chosen, but no UTF8 choice was made, | |
1173 | * enforce rejection of non-UTF8 names. | |
1174 | * | |
1175 | * If normalization was chosen, but rejecting non-UTF8 names | |
1176 | * was explicitly not chosen, it is an error. | |
1177 | */ | |
1178 | if (chosen_normal > 0 && chosen_utf < 0) { | |
1179 | if (nvlist_add_uint64(ret, | |
1180 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), 1) != 0) { | |
1181 | (void) no_memory(hdl); | |
1182 | goto error; | |
1183 | } | |
1184 | } else if (chosen_normal > 0 && chosen_utf == 0) { | |
1185 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1186 | "'%s' must be set 'on' if normalization chosen"), | |
1187 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); | |
1188 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1189 | goto error; | |
1190 | } | |
572e2857 BB |
1191 | return (ret); |
1192 | ||
1193 | error: | |
1194 | nvlist_free(ret); | |
1195 | return (NULL); | |
1196 | } | |
1197 | ||
1198 | int | |
1199 | zfs_add_synthetic_resv(zfs_handle_t *zhp, nvlist_t *nvl) | |
1200 | { | |
1201 | uint64_t old_volsize; | |
1202 | uint64_t new_volsize; | |
1203 | uint64_t old_reservation; | |
1204 | uint64_t new_reservation; | |
1205 | zfs_prop_t resv_prop; | |
34dc7c2f BB |
1206 | |
1207 | /* | |
1208 | * If this is an existing volume, and someone is setting the volsize, | |
1209 | * make sure that it matches the reservation, or add it if necessary. | |
1210 | */ | |
572e2857 BB |
1211 | old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); |
1212 | if (zfs_which_resv_prop(zhp, &resv_prop) < 0) | |
1213 | return (-1); | |
1214 | old_reservation = zfs_prop_get_int(zhp, resv_prop); | |
1215 | if ((zvol_volsize_to_reservation(old_volsize, zhp->zfs_props) != | |
1216 | old_reservation) || nvlist_lookup_uint64(nvl, | |
1217 | zfs_prop_to_name(resv_prop), &new_reservation) != ENOENT) { | |
1218 | return (0); | |
34dc7c2f | 1219 | } |
572e2857 BB |
1220 | if (nvlist_lookup_uint64(nvl, zfs_prop_to_name(ZFS_PROP_VOLSIZE), |
1221 | &new_volsize) != 0) | |
1222 | return (-1); | |
1223 | new_reservation = zvol_volsize_to_reservation(new_volsize, | |
1224 | zhp->zfs_props); | |
1225 | if (nvlist_add_uint64(nvl, zfs_prop_to_name(resv_prop), | |
1226 | new_reservation) != 0) { | |
1227 | (void) no_memory(zhp->zfs_hdl); | |
1228 | return (-1); | |
1229 | } | |
1230 | return (1); | |
34dc7c2f BB |
1231 | } |
1232 | ||
428870ff BB |
1233 | void |
1234 | zfs_setprop_error(libzfs_handle_t *hdl, zfs_prop_t prop, int err, | |
1235 | char *errbuf) | |
1236 | { | |
1237 | switch (err) { | |
1238 | ||
1239 | case ENOSPC: | |
1240 | /* | |
1241 | * For quotas and reservations, ENOSPC indicates | |
1242 | * something different; setting a quota or reservation | |
1243 | * doesn't use any disk space. | |
1244 | */ | |
1245 | switch (prop) { | |
1246 | case ZFS_PROP_QUOTA: | |
1247 | case ZFS_PROP_REFQUOTA: | |
1248 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1249 | "size is less than current used or " | |
1250 | "reserved space")); | |
1251 | (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); | |
1252 | break; | |
1253 | ||
1254 | case ZFS_PROP_RESERVATION: | |
1255 | case ZFS_PROP_REFRESERVATION: | |
1256 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1257 | "size is greater than available space")); | |
1258 | (void) zfs_error(hdl, EZFS_PROPSPACE, errbuf); | |
1259 | break; | |
1260 | ||
1261 | default: | |
1262 | (void) zfs_standard_error(hdl, err, errbuf); | |
1263 | break; | |
1264 | } | |
1265 | break; | |
1266 | ||
1267 | case EBUSY: | |
1268 | (void) zfs_standard_error(hdl, EBUSY, errbuf); | |
1269 | break; | |
1270 | ||
1271 | case EROFS: | |
1272 | (void) zfs_error(hdl, EZFS_DSREADONLY, errbuf); | |
1273 | break; | |
1274 | ||
1275 | case ENOTSUP: | |
1276 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1277 | "pool and or dataset must be upgraded to set this " | |
1278 | "property or value")); | |
1279 | (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); | |
1280 | break; | |
1281 | ||
1282 | case ERANGE: | |
1283 | if (prop == ZFS_PROP_COMPRESSION) { | |
1284 | (void) zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1285 | "property setting is not allowed on " | |
1286 | "bootable datasets")); | |
1287 | (void) zfs_error(hdl, EZFS_NOTSUP, errbuf); | |
1288 | } else { | |
1289 | (void) zfs_standard_error(hdl, err, errbuf); | |
1290 | } | |
1291 | break; | |
1292 | ||
1293 | case EINVAL: | |
1294 | if (prop == ZPROP_INVAL) { | |
1295 | (void) zfs_error(hdl, EZFS_BADPROP, errbuf); | |
1296 | } else { | |
1297 | (void) zfs_standard_error(hdl, err, errbuf); | |
1298 | } | |
1299 | break; | |
1300 | ||
1301 | case EOVERFLOW: | |
1302 | /* | |
1303 | * This platform can't address a volume this big. | |
1304 | */ | |
1305 | #ifdef _ILP32 | |
1306 | if (prop == ZFS_PROP_VOLSIZE) { | |
1307 | (void) zfs_error(hdl, EZFS_VOLTOOBIG, errbuf); | |
1308 | break; | |
1309 | } | |
1310 | #endif | |
1311 | /* FALLTHROUGH */ | |
1312 | default: | |
1313 | (void) zfs_standard_error(hdl, err, errbuf); | |
1314 | } | |
1315 | } | |
1316 | ||
2cf7f52b BB |
1317 | static boolean_t |
1318 | zfs_is_namespace_prop(zfs_prop_t prop) | |
1319 | { | |
1320 | switch (prop) { | |
1321 | ||
1322 | case ZFS_PROP_ATIME: | |
1323 | case ZFS_PROP_DEVICES: | |
1324 | case ZFS_PROP_EXEC: | |
1325 | case ZFS_PROP_SETUID: | |
1326 | case ZFS_PROP_READONLY: | |
1327 | case ZFS_PROP_XATTR: | |
1328 | case ZFS_PROP_NBMAND: | |
1329 | return (B_TRUE); | |
1330 | ||
1331 | default: | |
1332 | return (B_FALSE); | |
1333 | } | |
1334 | } | |
1335 | ||
34dc7c2f BB |
1336 | /* |
1337 | * Given a property name and value, set the property for the given dataset. | |
1338 | */ | |
1339 | int | |
1340 | zfs_prop_set(zfs_handle_t *zhp, const char *propname, const char *propval) | |
1341 | { | |
2598c001 | 1342 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
1343 | int ret = -1; |
1344 | prop_changelist_t *cl = NULL; | |
1345 | char errbuf[1024]; | |
1346 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
1347 | nvlist_t *nvl = NULL, *realprops; | |
1348 | zfs_prop_t prop; | |
b128c09f BB |
1349 | boolean_t do_prefix; |
1350 | uint64_t idx; | |
d4ed6673 | 1351 | int added_resv = 0; |
34dc7c2f BB |
1352 | |
1353 | (void) snprintf(errbuf, sizeof (errbuf), | |
1354 | dgettext(TEXT_DOMAIN, "cannot set property for '%s'"), | |
1355 | zhp->zfs_name); | |
1356 | ||
1357 | if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0 || | |
1358 | nvlist_add_string(nvl, propname, propval) != 0) { | |
1359 | (void) no_memory(hdl); | |
1360 | goto error; | |
1361 | } | |
1362 | ||
b128c09f | 1363 | if ((realprops = zfs_valid_proplist(hdl, zhp->zfs_type, nvl, |
34dc7c2f BB |
1364 | zfs_prop_get_int(zhp, ZFS_PROP_ZONED), zhp, errbuf)) == NULL) |
1365 | goto error; | |
1366 | ||
1367 | nvlist_free(nvl); | |
1368 | nvl = realprops; | |
1369 | ||
1370 | prop = zfs_name_to_prop(propname); | |
1371 | ||
572e2857 BB |
1372 | if (prop == ZFS_PROP_VOLSIZE) { |
1373 | if ((added_resv = zfs_add_synthetic_resv(zhp, nvl)) == -1) | |
1374 | goto error; | |
1375 | } | |
1376 | ||
b128c09f | 1377 | if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL) |
34dc7c2f BB |
1378 | goto error; |
1379 | ||
1380 | if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) { | |
1381 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1382 | "child dataset with inherited mountpoint is used " | |
1383 | "in a non-global zone")); | |
1384 | ret = zfs_error(hdl, EZFS_ZONED, errbuf); | |
1385 | goto error; | |
1386 | } | |
1387 | ||
b128c09f BB |
1388 | /* |
1389 | * If the dataset's canmount property is being set to noauto, | |
1390 | * then we want to prevent unmounting & remounting it. | |
1391 | */ | |
1392 | do_prefix = !((prop == ZFS_PROP_CANMOUNT) && | |
1393 | (zprop_string_to_index(prop, propval, &idx, | |
1394 | ZFS_TYPE_DATASET) == 0) && (idx == ZFS_CANMOUNT_NOAUTO)); | |
34dc7c2f BB |
1395 | |
1396 | if (do_prefix && (ret = changelist_prefix(cl)) != 0) | |
b128c09f | 1397 | goto error; |
34dc7c2f BB |
1398 | |
1399 | /* | |
1400 | * Execute the corresponding ioctl() to set this property. | |
1401 | */ | |
1402 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
1403 | ||
1404 | if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0) | |
1405 | goto error; | |
1406 | ||
1407 | ret = zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); | |
9babb374 | 1408 | |
34dc7c2f | 1409 | if (ret != 0) { |
428870ff | 1410 | zfs_setprop_error(hdl, prop, errno, errbuf); |
572e2857 BB |
1411 | if (added_resv && errno == ENOSPC) { |
1412 | /* clean up the volsize property we tried to set */ | |
1413 | uint64_t old_volsize = zfs_prop_get_int(zhp, | |
1414 | ZFS_PROP_VOLSIZE); | |
1415 | nvlist_free(nvl); | |
1416 | zcmd_free_nvlists(&zc); | |
1417 | if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) | |
1418 | goto error; | |
1419 | if (nvlist_add_uint64(nvl, | |
1420 | zfs_prop_to_name(ZFS_PROP_VOLSIZE), | |
1421 | old_volsize) != 0) | |
1422 | goto error; | |
1423 | if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0) | |
1424 | goto error; | |
1425 | (void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); | |
1426 | } | |
34dc7c2f BB |
1427 | } else { |
1428 | if (do_prefix) | |
1429 | ret = changelist_postfix(cl); | |
1430 | ||
2cf7f52b BB |
1431 | if (ret == 0) { |
1432 | /* | |
1433 | * Refresh the statistics so the new property | |
1434 | * value is reflected. | |
1435 | */ | |
34dc7c2f | 1436 | (void) get_stats(zhp); |
2cf7f52b BB |
1437 | |
1438 | /* | |
1439 | * Remount the filesystem to propagate the change | |
1440 | * if one of the options handled by the generic | |
1441 | * Linux namespace layer has been modified. | |
1442 | */ | |
1443 | if (zfs_is_namespace_prop(prop) && | |
1444 | zfs_is_mounted(zhp, NULL)) | |
1445 | ret = zfs_mount(zhp, MNTOPT_REMOUNT, 0); | |
1446 | } | |
34dc7c2f BB |
1447 | } |
1448 | ||
1449 | error: | |
1450 | nvlist_free(nvl); | |
1451 | zcmd_free_nvlists(&zc); | |
1452 | if (cl) | |
1453 | changelist_free(cl); | |
1454 | return (ret); | |
1455 | } | |
1456 | ||
1457 | /* | |
428870ff BB |
1458 | * Given a property, inherit the value from the parent dataset, or if received |
1459 | * is TRUE, revert to the received value, if any. | |
34dc7c2f BB |
1460 | */ |
1461 | int | |
428870ff | 1462 | zfs_prop_inherit(zfs_handle_t *zhp, const char *propname, boolean_t received) |
34dc7c2f | 1463 | { |
2598c001 | 1464 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
1465 | int ret; |
1466 | prop_changelist_t *cl; | |
1467 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
1468 | char errbuf[1024]; | |
1469 | zfs_prop_t prop; | |
1470 | ||
1471 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
1472 | "cannot inherit %s for '%s'"), propname, zhp->zfs_name); | |
1473 | ||
428870ff | 1474 | zc.zc_cookie = received; |
34dc7c2f BB |
1475 | if ((prop = zfs_name_to_prop(propname)) == ZPROP_INVAL) { |
1476 | /* | |
1477 | * For user properties, the amount of work we have to do is very | |
1478 | * small, so just do it here. | |
1479 | */ | |
1480 | if (!zfs_prop_user(propname)) { | |
1481 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1482 | "invalid property")); | |
1483 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
1484 | } | |
1485 | ||
1486 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
1487 | (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); | |
1488 | ||
1489 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc) != 0) | |
1490 | return (zfs_standard_error(hdl, errno, errbuf)); | |
1491 | ||
1492 | return (0); | |
1493 | } | |
1494 | ||
1495 | /* | |
1496 | * Verify that this property is inheritable. | |
1497 | */ | |
1498 | if (zfs_prop_readonly(prop)) | |
1499 | return (zfs_error(hdl, EZFS_PROPREADONLY, errbuf)); | |
1500 | ||
428870ff | 1501 | if (!zfs_prop_inheritable(prop) && !received) |
34dc7c2f BB |
1502 | return (zfs_error(hdl, EZFS_PROPNONINHERIT, errbuf)); |
1503 | ||
1504 | /* | |
1505 | * Check to see if the value applies to this type | |
1506 | */ | |
1507 | if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) | |
1508 | return (zfs_error(hdl, EZFS_PROPTYPE, errbuf)); | |
1509 | ||
1510 | /* | |
572e2857 | 1511 | * Normalize the name, to get rid of shorthand abbreviations. |
34dc7c2f BB |
1512 | */ |
1513 | propname = zfs_prop_to_name(prop); | |
1514 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
1515 | (void) strlcpy(zc.zc_value, propname, sizeof (zc.zc_value)); | |
1516 | ||
1517 | if (prop == ZFS_PROP_MOUNTPOINT && getzoneid() == GLOBAL_ZONEID && | |
1518 | zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { | |
1519 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1520 | "dataset is used in a non-global zone")); | |
1521 | return (zfs_error(hdl, EZFS_ZONED, errbuf)); | |
1522 | } | |
1523 | ||
1524 | /* | |
1525 | * Determine datasets which will be affected by this change, if any. | |
1526 | */ | |
b128c09f | 1527 | if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL) |
34dc7c2f BB |
1528 | return (-1); |
1529 | ||
1530 | if (prop == ZFS_PROP_MOUNTPOINT && changelist_haszonedchild(cl)) { | |
1531 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1532 | "child dataset with inherited mountpoint is used " | |
1533 | "in a non-global zone")); | |
1534 | ret = zfs_error(hdl, EZFS_ZONED, errbuf); | |
1535 | goto error; | |
1536 | } | |
1537 | ||
1538 | if ((ret = changelist_prefix(cl)) != 0) | |
1539 | goto error; | |
1540 | ||
1541 | if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_INHERIT_PROP, &zc)) != 0) { | |
1542 | return (zfs_standard_error(hdl, errno, errbuf)); | |
1543 | } else { | |
1544 | ||
1545 | if ((ret = changelist_postfix(cl)) != 0) | |
1546 | goto error; | |
1547 | ||
1548 | /* | |
1549 | * Refresh the statistics so the new property is reflected. | |
1550 | */ | |
1551 | (void) get_stats(zhp); | |
1552 | } | |
1553 | ||
1554 | error: | |
1555 | changelist_free(cl); | |
1556 | return (ret); | |
1557 | } | |
1558 | ||
1559 | /* | |
1560 | * True DSL properties are stored in an nvlist. The following two functions | |
1561 | * extract them appropriately. | |
1562 | */ | |
2cf7f52b | 1563 | uint64_t |
34dc7c2f BB |
1564 | getprop_uint64(zfs_handle_t *zhp, zfs_prop_t prop, char **source) |
1565 | { | |
1566 | nvlist_t *nv; | |
1567 | uint64_t value; | |
1568 | ||
1569 | *source = NULL; | |
1570 | if (nvlist_lookup_nvlist(zhp->zfs_props, | |
1571 | zfs_prop_to_name(prop), &nv) == 0) { | |
1572 | verify(nvlist_lookup_uint64(nv, ZPROP_VALUE, &value) == 0); | |
1573 | (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); | |
1574 | } else { | |
9babb374 BB |
1575 | verify(!zhp->zfs_props_table || |
1576 | zhp->zfs_props_table[prop] == B_TRUE); | |
34dc7c2f BB |
1577 | value = zfs_prop_default_numeric(prop); |
1578 | *source = ""; | |
1579 | } | |
1580 | ||
1581 | return (value); | |
1582 | } | |
1583 | ||
1584 | static char * | |
1585 | getprop_string(zfs_handle_t *zhp, zfs_prop_t prop, char **source) | |
1586 | { | |
1587 | nvlist_t *nv; | |
1588 | char *value; | |
1589 | ||
1590 | *source = NULL; | |
1591 | if (nvlist_lookup_nvlist(zhp->zfs_props, | |
1592 | zfs_prop_to_name(prop), &nv) == 0) { | |
1593 | verify(nvlist_lookup_string(nv, ZPROP_VALUE, &value) == 0); | |
1594 | (void) nvlist_lookup_string(nv, ZPROP_SOURCE, source); | |
1595 | } else { | |
9babb374 BB |
1596 | verify(!zhp->zfs_props_table || |
1597 | zhp->zfs_props_table[prop] == B_TRUE); | |
34dc7c2f BB |
1598 | if ((value = (char *)zfs_prop_default_string(prop)) == NULL) |
1599 | value = ""; | |
1600 | *source = ""; | |
1601 | } | |
1602 | ||
1603 | return (value); | |
1604 | } | |
1605 | ||
428870ff BB |
1606 | static boolean_t |
1607 | zfs_is_recvd_props_mode(zfs_handle_t *zhp) | |
1608 | { | |
1609 | return (zhp->zfs_props == zhp->zfs_recvd_props); | |
1610 | } | |
1611 | ||
1612 | static void | |
1613 | zfs_set_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) | |
1614 | { | |
1615 | *cookie = (uint64_t)(uintptr_t)zhp->zfs_props; | |
1616 | zhp->zfs_props = zhp->zfs_recvd_props; | |
1617 | } | |
1618 | ||
1619 | static void | |
1620 | zfs_unset_recvd_props_mode(zfs_handle_t *zhp, uint64_t *cookie) | |
1621 | { | |
1622 | zhp->zfs_props = (nvlist_t *)(uintptr_t)*cookie; | |
1623 | *cookie = 0; | |
1624 | } | |
1625 | ||
34dc7c2f BB |
1626 | /* |
1627 | * Internal function for getting a numeric property. Both zfs_prop_get() and | |
1628 | * zfs_prop_get_int() are built using this interface. | |
1629 | * | |
1630 | * Certain properties can be overridden using 'mount -o'. In this case, scan | |
9a616b5d | 1631 | * the contents of the /etc/mtab entry, searching for the appropriate options. |
34dc7c2f BB |
1632 | * If they differ from the on-disk values, report the current values and mark |
1633 | * the source "temporary". | |
1634 | */ | |
1635 | static int | |
1636 | get_numeric_property(zfs_handle_t *zhp, zfs_prop_t prop, zprop_source_t *src, | |
1637 | char **source, uint64_t *val) | |
1638 | { | |
2598c001 | 1639 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
1640 | nvlist_t *zplprops = NULL; |
1641 | struct mnttab mnt; | |
1642 | char *mntopt_on = NULL; | |
1643 | char *mntopt_off = NULL; | |
428870ff | 1644 | boolean_t received = zfs_is_recvd_props_mode(zhp); |
34dc7c2f BB |
1645 | |
1646 | *source = NULL; | |
1647 | ||
1648 | switch (prop) { | |
1649 | case ZFS_PROP_ATIME: | |
1650 | mntopt_on = MNTOPT_ATIME; | |
1651 | mntopt_off = MNTOPT_NOATIME; | |
1652 | break; | |
1653 | ||
1654 | case ZFS_PROP_DEVICES: | |
1655 | mntopt_on = MNTOPT_DEVICES; | |
1656 | mntopt_off = MNTOPT_NODEVICES; | |
1657 | break; | |
1658 | ||
1659 | case ZFS_PROP_EXEC: | |
1660 | mntopt_on = MNTOPT_EXEC; | |
1661 | mntopt_off = MNTOPT_NOEXEC; | |
1662 | break; | |
1663 | ||
1664 | case ZFS_PROP_READONLY: | |
1665 | mntopt_on = MNTOPT_RO; | |
1666 | mntopt_off = MNTOPT_RW; | |
1667 | break; | |
1668 | ||
1669 | case ZFS_PROP_SETUID: | |
1670 | mntopt_on = MNTOPT_SETUID; | |
1671 | mntopt_off = MNTOPT_NOSETUID; | |
1672 | break; | |
1673 | ||
1674 | case ZFS_PROP_XATTR: | |
1675 | mntopt_on = MNTOPT_XATTR; | |
1676 | mntopt_off = MNTOPT_NOXATTR; | |
1677 | break; | |
1678 | ||
1679 | case ZFS_PROP_NBMAND: | |
1680 | mntopt_on = MNTOPT_NBMAND; | |
1681 | mntopt_off = MNTOPT_NONBMAND; | |
1682 | break; | |
e75c13c3 BB |
1683 | default: |
1684 | break; | |
34dc7c2f BB |
1685 | } |
1686 | ||
1687 | /* | |
1688 | * Because looking up the mount options is potentially expensive | |
9a616b5d | 1689 | * (iterating over all of /etc/mtab), we defer its calculation until |
34dc7c2f BB |
1690 | * we're looking up a property which requires its presence. |
1691 | */ | |
1692 | if (!zhp->zfs_mntcheck && | |
1693 | (mntopt_on != NULL || prop == ZFS_PROP_MOUNTED)) { | |
fb5f0bc8 BB |
1694 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
1695 | struct mnttab entry; | |
34dc7c2f | 1696 | |
fb5f0bc8 BB |
1697 | if (libzfs_mnttab_find(hdl, zhp->zfs_name, &entry) == 0) { |
1698 | zhp->zfs_mntopts = zfs_strdup(hdl, | |
34dc7c2f BB |
1699 | entry.mnt_mntopts); |
1700 | if (zhp->zfs_mntopts == NULL) | |
1701 | return (-1); | |
1702 | } | |
1703 | ||
1704 | zhp->zfs_mntcheck = B_TRUE; | |
1705 | } | |
1706 | ||
1707 | if (zhp->zfs_mntopts == NULL) | |
1708 | mnt.mnt_mntopts = ""; | |
1709 | else | |
1710 | mnt.mnt_mntopts = zhp->zfs_mntopts; | |
1711 | ||
1712 | switch (prop) { | |
1713 | case ZFS_PROP_ATIME: | |
1714 | case ZFS_PROP_DEVICES: | |
1715 | case ZFS_PROP_EXEC: | |
1716 | case ZFS_PROP_READONLY: | |
1717 | case ZFS_PROP_SETUID: | |
1718 | case ZFS_PROP_XATTR: | |
1719 | case ZFS_PROP_NBMAND: | |
1720 | *val = getprop_uint64(zhp, prop, source); | |
1721 | ||
428870ff BB |
1722 | if (received) |
1723 | break; | |
1724 | ||
34dc7c2f BB |
1725 | if (hasmntopt(&mnt, mntopt_on) && !*val) { |
1726 | *val = B_TRUE; | |
1727 | if (src) | |
1728 | *src = ZPROP_SRC_TEMPORARY; | |
1729 | } else if (hasmntopt(&mnt, mntopt_off) && *val) { | |
1730 | *val = B_FALSE; | |
1731 | if (src) | |
1732 | *src = ZPROP_SRC_TEMPORARY; | |
1733 | } | |
1734 | break; | |
1735 | ||
1736 | case ZFS_PROP_CANMOUNT: | |
428870ff | 1737 | case ZFS_PROP_VOLSIZE: |
34dc7c2f BB |
1738 | case ZFS_PROP_QUOTA: |
1739 | case ZFS_PROP_REFQUOTA: | |
1740 | case ZFS_PROP_RESERVATION: | |
1741 | case ZFS_PROP_REFRESERVATION: | |
1742 | *val = getprop_uint64(zhp, prop, source); | |
428870ff BB |
1743 | |
1744 | if (*source == NULL) { | |
1745 | /* not default, must be local */ | |
34dc7c2f | 1746 | *source = zhp->zfs_name; |
428870ff | 1747 | } |
34dc7c2f BB |
1748 | break; |
1749 | ||
1750 | case ZFS_PROP_MOUNTED: | |
1751 | *val = (zhp->zfs_mntopts != NULL); | |
1752 | break; | |
1753 | ||
1754 | case ZFS_PROP_NUMCLONES: | |
1755 | *val = zhp->zfs_dmustats.dds_num_clones; | |
1756 | break; | |
1757 | ||
1758 | case ZFS_PROP_VERSION: | |
1759 | case ZFS_PROP_NORMALIZE: | |
1760 | case ZFS_PROP_UTF8ONLY: | |
1761 | case ZFS_PROP_CASE: | |
1762 | if (!zfs_prop_valid_for_type(prop, zhp->zfs_head_type) || | |
1763 | zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) | |
1764 | return (-1); | |
1765 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
1766 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_OBJSET_ZPLPROPS, &zc)) { | |
1767 | zcmd_free_nvlists(&zc); | |
45d1cae3 | 1768 | return (-1); |
34dc7c2f BB |
1769 | } |
1770 | if (zcmd_read_dst_nvlist(zhp->zfs_hdl, &zc, &zplprops) != 0 || | |
1771 | nvlist_lookup_uint64(zplprops, zfs_prop_to_name(prop), | |
1772 | val) != 0) { | |
1773 | zcmd_free_nvlists(&zc); | |
45d1cae3 | 1774 | return (-1); |
34dc7c2f BB |
1775 | } |
1776 | if (zplprops) | |
1777 | nvlist_free(zplprops); | |
1778 | zcmd_free_nvlists(&zc); | |
1779 | break; | |
1780 | ||
1781 | default: | |
1782 | switch (zfs_prop_get_type(prop)) { | |
1783 | case PROP_TYPE_NUMBER: | |
1784 | case PROP_TYPE_INDEX: | |
1785 | *val = getprop_uint64(zhp, prop, source); | |
b128c09f | 1786 | /* |
9babb374 | 1787 | * If we tried to use a default value for a |
b128c09f | 1788 | * readonly property, it means that it was not |
428870ff | 1789 | * present. |
b128c09f BB |
1790 | */ |
1791 | if (zfs_prop_readonly(prop) && | |
428870ff BB |
1792 | *source != NULL && (*source)[0] == '\0') { |
1793 | *source = NULL; | |
b128c09f | 1794 | } |
34dc7c2f BB |
1795 | break; |
1796 | ||
1797 | case PROP_TYPE_STRING: | |
1798 | default: | |
1799 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
1800 | "cannot get non-numeric property")); | |
1801 | return (zfs_error(zhp->zfs_hdl, EZFS_BADPROP, | |
1802 | dgettext(TEXT_DOMAIN, "internal error"))); | |
1803 | } | |
1804 | } | |
1805 | ||
1806 | return (0); | |
1807 | } | |
1808 | ||
1809 | /* | |
1810 | * Calculate the source type, given the raw source string. | |
1811 | */ | |
1812 | static void | |
1813 | get_source(zfs_handle_t *zhp, zprop_source_t *srctype, char *source, | |
1814 | char *statbuf, size_t statlen) | |
1815 | { | |
1816 | if (statbuf == NULL || *srctype == ZPROP_SRC_TEMPORARY) | |
1817 | return; | |
1818 | ||
1819 | if (source == NULL) { | |
1820 | *srctype = ZPROP_SRC_NONE; | |
1821 | } else if (source[0] == '\0') { | |
1822 | *srctype = ZPROP_SRC_DEFAULT; | |
428870ff BB |
1823 | } else if (strstr(source, ZPROP_SOURCE_VAL_RECVD) != NULL) { |
1824 | *srctype = ZPROP_SRC_RECEIVED; | |
34dc7c2f BB |
1825 | } else { |
1826 | if (strcmp(source, zhp->zfs_name) == 0) { | |
1827 | *srctype = ZPROP_SRC_LOCAL; | |
1828 | } else { | |
1829 | (void) strlcpy(statbuf, source, statlen); | |
1830 | *srctype = ZPROP_SRC_INHERITED; | |
1831 | } | |
1832 | } | |
1833 | ||
1834 | } | |
1835 | ||
428870ff BB |
1836 | int |
1837 | zfs_prop_get_recvd(zfs_handle_t *zhp, const char *propname, char *propbuf, | |
1838 | size_t proplen, boolean_t literal) | |
1839 | { | |
1840 | zfs_prop_t prop; | |
1841 | int err = 0; | |
1842 | ||
1843 | if (zhp->zfs_recvd_props == NULL) | |
1844 | if (get_recvd_props_ioctl(zhp) != 0) | |
1845 | return (-1); | |
1846 | ||
1847 | prop = zfs_name_to_prop(propname); | |
1848 | ||
1849 | if (prop != ZPROP_INVAL) { | |
1850 | uint64_t cookie; | |
1851 | if (!nvlist_exists(zhp->zfs_recvd_props, propname)) | |
1852 | return (-1); | |
1853 | zfs_set_recvd_props_mode(zhp, &cookie); | |
1854 | err = zfs_prop_get(zhp, prop, propbuf, proplen, | |
1855 | NULL, NULL, 0, literal); | |
1856 | zfs_unset_recvd_props_mode(zhp, &cookie); | |
1857 | } else if (zfs_prop_userquota(propname)) { | |
1858 | return (-1); | |
1859 | } else { | |
1860 | nvlist_t *propval; | |
1861 | char *recvdval; | |
1862 | if (nvlist_lookup_nvlist(zhp->zfs_recvd_props, | |
1863 | propname, &propval) != 0) | |
1864 | return (-1); | |
1865 | verify(nvlist_lookup_string(propval, ZPROP_VALUE, | |
1866 | &recvdval) == 0); | |
1867 | (void) strlcpy(propbuf, recvdval, proplen); | |
1868 | } | |
1869 | ||
1870 | return (err == 0 ? 0 : -1); | |
1871 | } | |
1872 | ||
34dc7c2f BB |
1873 | /* |
1874 | * Retrieve a property from the given object. If 'literal' is specified, then | |
1875 | * numbers are left as exact values. Otherwise, numbers are converted to a | |
1876 | * human-readable form. | |
1877 | * | |
1878 | * Returns 0 on success, or -1 on error. | |
1879 | */ | |
1880 | int | |
1881 | zfs_prop_get(zfs_handle_t *zhp, zfs_prop_t prop, char *propbuf, size_t proplen, | |
1882 | zprop_source_t *src, char *statbuf, size_t statlen, boolean_t literal) | |
1883 | { | |
1884 | char *source = NULL; | |
1885 | uint64_t val; | |
1886 | char *str; | |
34dc7c2f | 1887 | const char *strval; |
428870ff | 1888 | boolean_t received = zfs_is_recvd_props_mode(zhp); |
34dc7c2f BB |
1889 | |
1890 | /* | |
1891 | * Check to see if this property applies to our object | |
1892 | */ | |
1893 | if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) | |
1894 | return (-1); | |
1895 | ||
428870ff BB |
1896 | if (received && zfs_prop_readonly(prop)) |
1897 | return (-1); | |
1898 | ||
34dc7c2f BB |
1899 | if (src) |
1900 | *src = ZPROP_SRC_NONE; | |
1901 | ||
1902 | switch (prop) { | |
1903 | case ZFS_PROP_CREATION: | |
1904 | /* | |
1905 | * 'creation' is a time_t stored in the statistics. We convert | |
1906 | * this into a string unless 'literal' is specified. | |
1907 | */ | |
1908 | { | |
1909 | val = getprop_uint64(zhp, prop, &source); | |
1910 | time_t time = (time_t)val; | |
1911 | struct tm t; | |
1912 | ||
1913 | if (literal || | |
1914 | localtime_r(&time, &t) == NULL || | |
1915 | strftime(propbuf, proplen, "%a %b %e %k:%M %Y", | |
1916 | &t) == 0) | |
b8864a23 | 1917 | (void) snprintf(propbuf, proplen, "%llu", (u_longlong_t) val); |
34dc7c2f BB |
1918 | } |
1919 | break; | |
1920 | ||
1921 | case ZFS_PROP_MOUNTPOINT: | |
1922 | /* | |
1923 | * Getting the precise mountpoint can be tricky. | |
1924 | * | |
1925 | * - for 'none' or 'legacy', return those values. | |
34dc7c2f BB |
1926 | * - for inherited mountpoints, we want to take everything |
1927 | * after our ancestor and append it to the inherited value. | |
1928 | * | |
1929 | * If the pool has an alternate root, we want to prepend that | |
1930 | * root to any values we return. | |
1931 | */ | |
b128c09f | 1932 | |
34dc7c2f BB |
1933 | str = getprop_string(zhp, prop, &source); |
1934 | ||
b128c09f BB |
1935 | if (str[0] == '/') { |
1936 | char buf[MAXPATHLEN]; | |
1937 | char *root = buf; | |
428870ff | 1938 | const char *relpath; |
34dc7c2f | 1939 | |
428870ff BB |
1940 | /* |
1941 | * If we inherit the mountpoint, even from a dataset | |
1942 | * with a received value, the source will be the path of | |
1943 | * the dataset we inherit from. If source is | |
1944 | * ZPROP_SOURCE_VAL_RECVD, the received value is not | |
1945 | * inherited. | |
1946 | */ | |
1947 | if (strcmp(source, ZPROP_SOURCE_VAL_RECVD) == 0) { | |
1948 | relpath = ""; | |
1949 | } else { | |
1950 | relpath = zhp->zfs_name + strlen(source); | |
1951 | if (relpath[0] == '/') | |
1952 | relpath++; | |
1953 | } | |
b128c09f BB |
1954 | |
1955 | if ((zpool_get_prop(zhp->zpool_hdl, | |
1956 | ZPOOL_PROP_ALTROOT, buf, MAXPATHLEN, NULL)) || | |
1957 | (strcmp(root, "-") == 0)) | |
1958 | root[0] = '\0'; | |
1959 | /* | |
1960 | * Special case an alternate root of '/'. This will | |
1961 | * avoid having multiple leading slashes in the | |
1962 | * mountpoint path. | |
1963 | */ | |
1964 | if (strcmp(root, "/") == 0) | |
1965 | root++; | |
1966 | ||
1967 | /* | |
1968 | * If the mountpoint is '/' then skip over this | |
1969 | * if we are obtaining either an alternate root or | |
1970 | * an inherited mountpoint. | |
1971 | */ | |
1972 | if (str[1] == '\0' && (root[0] != '\0' || | |
1973 | relpath[0] != '\0')) | |
34dc7c2f BB |
1974 | str++; |
1975 | ||
1976 | if (relpath[0] == '\0') | |
1977 | (void) snprintf(propbuf, proplen, "%s%s", | |
1978 | root, str); | |
1979 | else | |
1980 | (void) snprintf(propbuf, proplen, "%s%s%s%s", | |
1981 | root, str, relpath[0] == '@' ? "" : "/", | |
1982 | relpath); | |
1983 | } else { | |
1984 | /* 'legacy' or 'none' */ | |
1985 | (void) strlcpy(propbuf, str, proplen); | |
1986 | } | |
1987 | ||
1988 | break; | |
1989 | ||
1990 | case ZFS_PROP_ORIGIN: | |
1991 | (void) strlcpy(propbuf, getprop_string(zhp, prop, &source), | |
1992 | proplen); | |
1993 | /* | |
1994 | * If there is no parent at all, return failure to indicate that | |
1995 | * it doesn't apply to this dataset. | |
1996 | */ | |
1997 | if (propbuf[0] == '\0') | |
1998 | return (-1); | |
1999 | break; | |
2000 | ||
2001 | case ZFS_PROP_QUOTA: | |
2002 | case ZFS_PROP_REFQUOTA: | |
2003 | case ZFS_PROP_RESERVATION: | |
2004 | case ZFS_PROP_REFRESERVATION: | |
2005 | ||
2006 | if (get_numeric_property(zhp, prop, src, &source, &val) != 0) | |
2007 | return (-1); | |
2008 | ||
2009 | /* | |
2010 | * If quota or reservation is 0, we translate this into 'none' | |
2011 | * (unless literal is set), and indicate that it's the default | |
2012 | * value. Otherwise, we print the number nicely and indicate | |
2013 | * that its set locally. | |
2014 | */ | |
2015 | if (val == 0) { | |
2016 | if (literal) | |
2017 | (void) strlcpy(propbuf, "0", proplen); | |
2018 | else | |
2019 | (void) strlcpy(propbuf, "none", proplen); | |
2020 | } else { | |
2021 | if (literal) | |
2022 | (void) snprintf(propbuf, proplen, "%llu", | |
2023 | (u_longlong_t)val); | |
2024 | else | |
2025 | zfs_nicenum(val, propbuf, proplen); | |
2026 | } | |
2027 | break; | |
2028 | ||
f5fc4aca | 2029 | case ZFS_PROP_REFRATIO: |
34dc7c2f BB |
2030 | case ZFS_PROP_COMPRESSRATIO: |
2031 | if (get_numeric_property(zhp, prop, src, &source, &val) != 0) | |
2032 | return (-1); | |
428870ff BB |
2033 | (void) snprintf(propbuf, proplen, "%llu.%02llux", |
2034 | (u_longlong_t)(val / 100), | |
2035 | (u_longlong_t)(val % 100)); | |
34dc7c2f BB |
2036 | break; |
2037 | ||
2038 | case ZFS_PROP_TYPE: | |
2039 | switch (zhp->zfs_type) { | |
2040 | case ZFS_TYPE_FILESYSTEM: | |
2041 | str = "filesystem"; | |
2042 | break; | |
2043 | case ZFS_TYPE_VOLUME: | |
2044 | str = "volume"; | |
2045 | break; | |
2046 | case ZFS_TYPE_SNAPSHOT: | |
2047 | str = "snapshot"; | |
2048 | break; | |
2049 | default: | |
2050 | abort(); | |
2051 | } | |
2052 | (void) snprintf(propbuf, proplen, "%s", str); | |
2053 | break; | |
2054 | ||
2055 | case ZFS_PROP_MOUNTED: | |
2056 | /* | |
2057 | * The 'mounted' property is a pseudo-property that described | |
2058 | * whether the filesystem is currently mounted. Even though | |
2059 | * it's a boolean value, the typical values of "on" and "off" | |
2060 | * don't make sense, so we translate to "yes" and "no". | |
2061 | */ | |
2062 | if (get_numeric_property(zhp, ZFS_PROP_MOUNTED, | |
2063 | src, &source, &val) != 0) | |
2064 | return (-1); | |
2065 | if (val) | |
2066 | (void) strlcpy(propbuf, "yes", proplen); | |
2067 | else | |
2068 | (void) strlcpy(propbuf, "no", proplen); | |
2069 | break; | |
2070 | ||
2071 | case ZFS_PROP_NAME: | |
2072 | /* | |
2073 | * The 'name' property is a pseudo-property derived from the | |
2074 | * dataset name. It is presented as a real property to simplify | |
2075 | * consumers. | |
2076 | */ | |
2077 | (void) strlcpy(propbuf, zhp->zfs_name, proplen); | |
2078 | break; | |
2079 | ||
428870ff BB |
2080 | case ZFS_PROP_MLSLABEL: |
2081 | { | |
d2c15e84 | 2082 | #ifdef HAVE_MLSLABEL |
428870ff BB |
2083 | m_label_t *new_sl = NULL; |
2084 | char *ascii = NULL; /* human readable label */ | |
2085 | ||
2086 | (void) strlcpy(propbuf, | |
2087 | getprop_string(zhp, prop, &source), proplen); | |
2088 | ||
2089 | if (literal || (strcasecmp(propbuf, | |
2090 | ZFS_MLSLABEL_DEFAULT) == 0)) | |
2091 | break; | |
2092 | ||
2093 | /* | |
2094 | * Try to translate the internal hex string to | |
2095 | * human-readable output. If there are any | |
2096 | * problems just use the hex string. | |
2097 | */ | |
2098 | ||
2099 | if (str_to_label(propbuf, &new_sl, MAC_LABEL, | |
2100 | L_NO_CORRECTION, NULL) == -1) { | |
2101 | m_label_free(new_sl); | |
2102 | break; | |
2103 | } | |
2104 | ||
2105 | if (label_to_str(new_sl, &ascii, M_LABEL, | |
2106 | DEF_NAMES) != 0) { | |
2107 | if (ascii) | |
2108 | free(ascii); | |
2109 | m_label_free(new_sl); | |
2110 | break; | |
2111 | } | |
2112 | m_label_free(new_sl); | |
2113 | ||
2114 | (void) strlcpy(propbuf, ascii, proplen); | |
2115 | free(ascii); | |
d2c15e84 BB |
2116 | #else |
2117 | (void) strlcpy(propbuf, | |
2118 | getprop_string(zhp, prop, &source), proplen); | |
2119 | #endif /* HAVE_MLSLABEL */ | |
428870ff BB |
2120 | } |
2121 | break; | |
2122 | ||
34dc7c2f BB |
2123 | default: |
2124 | switch (zfs_prop_get_type(prop)) { | |
2125 | case PROP_TYPE_NUMBER: | |
2126 | if (get_numeric_property(zhp, prop, src, | |
2127 | &source, &val) != 0) | |
2128 | return (-1); | |
2129 | if (literal) | |
2130 | (void) snprintf(propbuf, proplen, "%llu", | |
2131 | (u_longlong_t)val); | |
2132 | else | |
2133 | zfs_nicenum(val, propbuf, proplen); | |
2134 | break; | |
2135 | ||
2136 | case PROP_TYPE_STRING: | |
2137 | (void) strlcpy(propbuf, | |
2138 | getprop_string(zhp, prop, &source), proplen); | |
2139 | break; | |
2140 | ||
2141 | case PROP_TYPE_INDEX: | |
2142 | if (get_numeric_property(zhp, prop, src, | |
2143 | &source, &val) != 0) | |
2144 | return (-1); | |
2145 | if (zfs_prop_index_to_string(prop, val, &strval) != 0) | |
2146 | return (-1); | |
2147 | (void) strlcpy(propbuf, strval, proplen); | |
2148 | break; | |
2149 | ||
2150 | default: | |
2151 | abort(); | |
2152 | } | |
2153 | } | |
2154 | ||
2155 | get_source(zhp, src, source, statbuf, statlen); | |
2156 | ||
2157 | return (0); | |
2158 | } | |
2159 | ||
2160 | /* | |
2161 | * Utility function to get the given numeric property. Does no validation that | |
2162 | * the given property is the appropriate type; should only be used with | |
2163 | * hard-coded property types. | |
2164 | */ | |
2165 | uint64_t | |
2166 | zfs_prop_get_int(zfs_handle_t *zhp, zfs_prop_t prop) | |
2167 | { | |
2168 | char *source; | |
2169 | uint64_t val; | |
2170 | ||
2171 | (void) get_numeric_property(zhp, prop, NULL, &source, &val); | |
2172 | ||
2173 | return (val); | |
2174 | } | |
2175 | ||
2176 | int | |
2177 | zfs_prop_set_int(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t val) | |
2178 | { | |
2179 | char buf[64]; | |
2180 | ||
9babb374 | 2181 | (void) snprintf(buf, sizeof (buf), "%llu", (longlong_t)val); |
34dc7c2f BB |
2182 | return (zfs_prop_set(zhp, zfs_prop_to_name(prop), buf)); |
2183 | } | |
2184 | ||
2185 | /* | |
2186 | * Similar to zfs_prop_get(), but returns the value as an integer. | |
2187 | */ | |
2188 | int | |
2189 | zfs_prop_get_numeric(zfs_handle_t *zhp, zfs_prop_t prop, uint64_t *value, | |
2190 | zprop_source_t *src, char *statbuf, size_t statlen) | |
2191 | { | |
2192 | char *source; | |
2193 | ||
2194 | /* | |
2195 | * Check to see if this property applies to our object | |
2196 | */ | |
2197 | if (!zfs_prop_valid_for_type(prop, zhp->zfs_type)) { | |
2198 | return (zfs_error_fmt(zhp->zfs_hdl, EZFS_PROPTYPE, | |
2199 | dgettext(TEXT_DOMAIN, "cannot get property '%s'"), | |
2200 | zfs_prop_to_name(prop))); | |
2201 | } | |
2202 | ||
2203 | if (src) | |
2204 | *src = ZPROP_SRC_NONE; | |
2205 | ||
2206 | if (get_numeric_property(zhp, prop, src, &source, value) != 0) | |
2207 | return (-1); | |
2208 | ||
2209 | get_source(zhp, src, source, statbuf, statlen); | |
2210 | ||
2211 | return (0); | |
2212 | } | |
2213 | ||
be160928 | 2214 | #ifdef HAVE_IDMAP |
9babb374 BB |
2215 | static int |
2216 | idmap_id_to_numeric_domain_rid(uid_t id, boolean_t isuser, | |
2217 | char **domainp, idmap_rid_t *ridp) | |
2218 | { | |
9babb374 BB |
2219 | idmap_get_handle_t *get_hdl = NULL; |
2220 | idmap_stat status; | |
2221 | int err = EINVAL; | |
2222 | ||
572e2857 | 2223 | if (idmap_get_create(&get_hdl) != IDMAP_SUCCESS) |
9babb374 BB |
2224 | goto out; |
2225 | ||
2226 | if (isuser) { | |
2227 | err = idmap_get_sidbyuid(get_hdl, id, | |
2228 | IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); | |
2229 | } else { | |
2230 | err = idmap_get_sidbygid(get_hdl, id, | |
2231 | IDMAP_REQ_FLG_USE_CACHE, domainp, ridp, &status); | |
2232 | } | |
2233 | if (err == IDMAP_SUCCESS && | |
2234 | idmap_get_mappings(get_hdl) == IDMAP_SUCCESS && | |
2235 | status == IDMAP_SUCCESS) | |
2236 | err = 0; | |
2237 | else | |
2238 | err = EINVAL; | |
2239 | out: | |
2240 | if (get_hdl) | |
2241 | idmap_get_destroy(get_hdl); | |
9babb374 BB |
2242 | return (err); |
2243 | } | |
be160928 | 2244 | #endif /* HAVE_IDMAP */ |
9babb374 BB |
2245 | |
2246 | /* | |
2247 | * convert the propname into parameters needed by kernel | |
2248 | * Eg: userquota@ahrens -> ZFS_PROP_USERQUOTA, "", 126829 | |
2249 | * Eg: userused@matt@domain -> ZFS_PROP_USERUSED, "S-1-123-456", 789 | |
2250 | */ | |
2251 | static int | |
2252 | userquota_propname_decode(const char *propname, boolean_t zoned, | |
2253 | zfs_userquota_prop_t *typep, char *domain, int domainlen, uint64_t *ridp) | |
2254 | { | |
2255 | zfs_userquota_prop_t type; | |
2256 | char *cp, *end; | |
45d1cae3 | 2257 | char *numericsid = NULL; |
9babb374 BB |
2258 | boolean_t isuser; |
2259 | ||
2260 | domain[0] = '\0'; | |
2261 | ||
2262 | /* Figure out the property type ({user|group}{quota|space}) */ | |
2263 | for (type = 0; type < ZFS_NUM_USERQUOTA_PROPS; type++) { | |
2264 | if (strncmp(propname, zfs_userquota_prop_prefixes[type], | |
2265 | strlen(zfs_userquota_prop_prefixes[type])) == 0) | |
2266 | break; | |
2267 | } | |
2268 | if (type == ZFS_NUM_USERQUOTA_PROPS) | |
2269 | return (EINVAL); | |
2270 | *typep = type; | |
2271 | ||
2272 | isuser = (type == ZFS_PROP_USERQUOTA || | |
2273 | type == ZFS_PROP_USERUSED); | |
2274 | ||
2275 | cp = strchr(propname, '@') + 1; | |
2276 | ||
2277 | if (strchr(cp, '@')) { | |
be160928 | 2278 | #ifdef HAVE_IDMAP |
9babb374 BB |
2279 | /* |
2280 | * It's a SID name (eg "user@domain") that needs to be | |
45d1cae3 | 2281 | * turned into S-1-domainID-RID. |
9babb374 | 2282 | */ |
45d1cae3 | 2283 | directory_error_t e; |
9babb374 BB |
2284 | if (zoned && getzoneid() == GLOBAL_ZONEID) |
2285 | return (ENOENT); | |
45d1cae3 BB |
2286 | if (isuser) { |
2287 | e = directory_sid_from_user_name(NULL, | |
2288 | cp, &numericsid); | |
2289 | } else { | |
2290 | e = directory_sid_from_group_name(NULL, | |
2291 | cp, &numericsid); | |
2292 | } | |
2293 | if (e != NULL) { | |
2294 | directory_error_free(e); | |
9babb374 | 2295 | return (ENOENT); |
45d1cae3 BB |
2296 | } |
2297 | if (numericsid == NULL) | |
9babb374 | 2298 | return (ENOENT); |
45d1cae3 BB |
2299 | cp = numericsid; |
2300 | /* will be further decoded below */ | |
be160928 BB |
2301 | #else |
2302 | return (ENOSYS); | |
2303 | #endif /* HAVE_IDMAP */ | |
45d1cae3 BB |
2304 | } |
2305 | ||
2306 | if (strncmp(cp, "S-1-", 4) == 0) { | |
9babb374 | 2307 | /* It's a numeric SID (eg "S-1-234-567-89") */ |
45d1cae3 | 2308 | (void) strlcpy(domain, cp, domainlen); |
9babb374 BB |
2309 | cp = strrchr(domain, '-'); |
2310 | *cp = '\0'; | |
2311 | cp++; | |
2312 | ||
2313 | errno = 0; | |
2314 | *ridp = strtoull(cp, &end, 10); | |
45d1cae3 BB |
2315 | if (numericsid) { |
2316 | free(numericsid); | |
2317 | numericsid = NULL; | |
2318 | } | |
9babb374 BB |
2319 | if (errno != 0 || *end != '\0') |
2320 | return (EINVAL); | |
2321 | } else if (!isdigit(*cp)) { | |
2322 | /* | |
2323 | * It's a user/group name (eg "user") that needs to be | |
2324 | * turned into a uid/gid | |
2325 | */ | |
2326 | if (zoned && getzoneid() == GLOBAL_ZONEID) | |
2327 | return (ENOENT); | |
2328 | if (isuser) { | |
2329 | struct passwd *pw; | |
2330 | pw = getpwnam(cp); | |
2331 | if (pw == NULL) | |
2332 | return (ENOENT); | |
2333 | *ridp = pw->pw_uid; | |
2334 | } else { | |
2335 | struct group *gr; | |
2336 | gr = getgrnam(cp); | |
2337 | if (gr == NULL) | |
2338 | return (ENOENT); | |
2339 | *ridp = gr->gr_gid; | |
2340 | } | |
2341 | } else { | |
be160928 | 2342 | #ifdef HAVE_IDMAP |
9babb374 BB |
2343 | /* It's a user/group ID (eg "12345"). */ |
2344 | uid_t id = strtoul(cp, &end, 10); | |
2345 | idmap_rid_t rid; | |
2346 | char *mapdomain; | |
2347 | ||
2348 | if (*end != '\0') | |
2349 | return (EINVAL); | |
2350 | if (id > MAXUID) { | |
2351 | /* It's an ephemeral ID. */ | |
2352 | if (idmap_id_to_numeric_domain_rid(id, isuser, | |
2353 | &mapdomain, &rid) != 0) | |
2354 | return (ENOENT); | |
45d1cae3 | 2355 | (void) strlcpy(domain, mapdomain, domainlen); |
9babb374 BB |
2356 | *ridp = rid; |
2357 | } else { | |
2358 | *ridp = id; | |
2359 | } | |
be160928 BB |
2360 | #else |
2361 | return (ENOSYS); | |
2362 | #endif /* HAVE_IDMAP */ | |
9babb374 BB |
2363 | } |
2364 | ||
45d1cae3 | 2365 | ASSERT3P(numericsid, ==, NULL); |
9babb374 BB |
2366 | return (0); |
2367 | } | |
2368 | ||
2369 | static int | |
2370 | zfs_prop_get_userquota_common(zfs_handle_t *zhp, const char *propname, | |
2371 | uint64_t *propvalue, zfs_userquota_prop_t *typep) | |
2372 | { | |
2373 | int err; | |
2598c001 | 2374 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
9babb374 BB |
2375 | |
2376 | (void) strncpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
2377 | ||
2378 | err = userquota_propname_decode(propname, | |
2379 | zfs_prop_get_int(zhp, ZFS_PROP_ZONED), | |
2380 | typep, zc.zc_value, sizeof (zc.zc_value), &zc.zc_guid); | |
2381 | zc.zc_objset_type = *typep; | |
2382 | if (err) | |
2383 | return (err); | |
2384 | ||
2385 | err = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_USERSPACE_ONE, &zc); | |
2386 | if (err) | |
2387 | return (err); | |
2388 | ||
2389 | *propvalue = zc.zc_cookie; | |
2390 | return (0); | |
2391 | } | |
2392 | ||
2393 | int | |
2394 | zfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname, | |
2395 | uint64_t *propvalue) | |
2396 | { | |
2397 | zfs_userquota_prop_t type; | |
2398 | ||
2399 | return (zfs_prop_get_userquota_common(zhp, propname, propvalue, | |
2400 | &type)); | |
2401 | } | |
2402 | ||
2403 | int | |
2404 | zfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname, | |
2405 | char *propbuf, int proplen, boolean_t literal) | |
2406 | { | |
2407 | int err; | |
2408 | uint64_t propvalue; | |
2409 | zfs_userquota_prop_t type; | |
2410 | ||
2411 | err = zfs_prop_get_userquota_common(zhp, propname, &propvalue, | |
2412 | &type); | |
2413 | ||
2414 | if (err) | |
2415 | return (err); | |
2416 | ||
2417 | if (literal) { | |
b8864a23 BB |
2418 | (void) snprintf(propbuf, proplen, "%llu", |
2419 | (u_longlong_t)propvalue); | |
9babb374 BB |
2420 | } else if (propvalue == 0 && |
2421 | (type == ZFS_PROP_USERQUOTA || type == ZFS_PROP_GROUPQUOTA)) { | |
2422 | (void) strlcpy(propbuf, "none", proplen); | |
2423 | } else { | |
2424 | zfs_nicenum(propvalue, propbuf, proplen); | |
2425 | } | |
2426 | return (0); | |
2427 | } | |
2428 | ||
34dc7c2f BB |
2429 | /* |
2430 | * Returns the name of the given zfs handle. | |
2431 | */ | |
2432 | const char * | |
2433 | zfs_get_name(const zfs_handle_t *zhp) | |
2434 | { | |
2435 | return (zhp->zfs_name); | |
2436 | } | |
2437 | ||
2438 | /* | |
2439 | * Returns the type of the given zfs handle. | |
2440 | */ | |
2441 | zfs_type_t | |
2442 | zfs_get_type(const zfs_handle_t *zhp) | |
2443 | { | |
2444 | return (zhp->zfs_type); | |
2445 | } | |
2446 | ||
fb5f0bc8 BB |
2447 | static int |
2448 | zfs_do_list_ioctl(zfs_handle_t *zhp, int arg, zfs_cmd_t *zc) | |
2449 | { | |
2450 | int rc; | |
2451 | uint64_t orig_cookie; | |
2452 | ||
2453 | orig_cookie = zc->zc_cookie; | |
2454 | top: | |
2455 | (void) strlcpy(zc->zc_name, zhp->zfs_name, sizeof (zc->zc_name)); | |
2456 | rc = ioctl(zhp->zfs_hdl->libzfs_fd, arg, zc); | |
2457 | ||
2458 | if (rc == -1) { | |
2459 | switch (errno) { | |
2460 | case ENOMEM: | |
2461 | /* expand nvlist memory and try again */ | |
2462 | if (zcmd_expand_dst_nvlist(zhp->zfs_hdl, zc) != 0) { | |
2463 | zcmd_free_nvlists(zc); | |
2464 | return (-1); | |
2465 | } | |
2466 | zc->zc_cookie = orig_cookie; | |
2467 | goto top; | |
2468 | /* | |
2469 | * An errno value of ESRCH indicates normal completion. | |
2470 | * If ENOENT is returned, then the underlying dataset | |
2471 | * has been removed since we obtained the handle. | |
2472 | */ | |
2473 | case ESRCH: | |
2474 | case ENOENT: | |
2475 | rc = 1; | |
2476 | break; | |
2477 | default: | |
2478 | rc = zfs_standard_error(zhp->zfs_hdl, errno, | |
2479 | dgettext(TEXT_DOMAIN, | |
2480 | "cannot iterate filesystems")); | |
2481 | break; | |
2482 | } | |
2483 | } | |
2484 | return (rc); | |
2485 | } | |
2486 | ||
34dc7c2f BB |
2487 | /* |
2488 | * Iterate over all child filesystems | |
2489 | */ | |
2490 | int | |
2491 | zfs_iter_filesystems(zfs_handle_t *zhp, zfs_iter_f func, void *data) | |
2492 | { | |
2598c001 | 2493 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
2494 | zfs_handle_t *nzhp; |
2495 | int ret; | |
2496 | ||
2497 | if (zhp->zfs_type != ZFS_TYPE_FILESYSTEM) | |
2498 | return (0); | |
2499 | ||
fb5f0bc8 BB |
2500 | if (zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) |
2501 | return (-1); | |
2502 | ||
2503 | while ((ret = zfs_do_list_ioctl(zhp, ZFS_IOC_DATASET_LIST_NEXT, | |
2504 | &zc)) == 0) { | |
34dc7c2f BB |
2505 | /* |
2506 | * Silently ignore errors, as the only plausible explanation is | |
2507 | * that the pool has since been removed. | |
2508 | */ | |
fb5f0bc8 BB |
2509 | if ((nzhp = make_dataset_handle_zc(zhp->zfs_hdl, |
2510 | &zc)) == NULL) { | |
34dc7c2f | 2511 | continue; |
fb5f0bc8 | 2512 | } |
34dc7c2f | 2513 | |
fb5f0bc8 BB |
2514 | if ((ret = func(nzhp, data)) != 0) { |
2515 | zcmd_free_nvlists(&zc); | |
34dc7c2f | 2516 | return (ret); |
fb5f0bc8 | 2517 | } |
34dc7c2f | 2518 | } |
fb5f0bc8 BB |
2519 | zcmd_free_nvlists(&zc); |
2520 | return ((ret < 0) ? ret : 0); | |
34dc7c2f BB |
2521 | } |
2522 | ||
2523 | /* | |
2524 | * Iterate over all snapshots | |
2525 | */ | |
2526 | int | |
2527 | zfs_iter_snapshots(zfs_handle_t *zhp, zfs_iter_f func, void *data) | |
2528 | { | |
2598c001 | 2529 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
2530 | zfs_handle_t *nzhp; |
2531 | int ret; | |
2532 | ||
2533 | if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) | |
2534 | return (0); | |
2535 | ||
fb5f0bc8 BB |
2536 | if (zcmd_alloc_dst_nvlist(zhp->zfs_hdl, &zc, 0) != 0) |
2537 | return (-1); | |
2538 | while ((ret = zfs_do_list_ioctl(zhp, ZFS_IOC_SNAPSHOT_LIST_NEXT, | |
2539 | &zc)) == 0) { | |
34dc7c2f | 2540 | |
fb5f0bc8 BB |
2541 | if ((nzhp = make_dataset_handle_zc(zhp->zfs_hdl, |
2542 | &zc)) == NULL) { | |
34dc7c2f | 2543 | continue; |
fb5f0bc8 | 2544 | } |
34dc7c2f | 2545 | |
fb5f0bc8 BB |
2546 | if ((ret = func(nzhp, data)) != 0) { |
2547 | zcmd_free_nvlists(&zc); | |
34dc7c2f | 2548 | return (ret); |
fb5f0bc8 | 2549 | } |
34dc7c2f | 2550 | } |
fb5f0bc8 BB |
2551 | zcmd_free_nvlists(&zc); |
2552 | return ((ret < 0) ? ret : 0); | |
34dc7c2f BB |
2553 | } |
2554 | ||
2555 | /* | |
2556 | * Iterate over all children, snapshots and filesystems | |
2557 | */ | |
2558 | int | |
2559 | zfs_iter_children(zfs_handle_t *zhp, zfs_iter_f func, void *data) | |
2560 | { | |
2561 | int ret; | |
2562 | ||
2563 | if ((ret = zfs_iter_filesystems(zhp, func, data)) != 0) | |
2564 | return (ret); | |
2565 | ||
2566 | return (zfs_iter_snapshots(zhp, func, data)); | |
2567 | } | |
2568 | ||
428870ff BB |
2569 | /* |
2570 | * Is one dataset name a child dataset of another? | |
2571 | * | |
2572 | * Needs to handle these cases: | |
2573 | * Dataset 1 "a/foo" "a/foo" "a/foo" "a/foo" | |
2574 | * Dataset 2 "a/fo" "a/foobar" "a/bar/baz" "a/foo/bar" | |
2575 | * Descendant? No. No. No. Yes. | |
2576 | */ | |
2577 | static boolean_t | |
2578 | is_descendant(const char *ds1, const char *ds2) | |
2579 | { | |
2580 | size_t d1len = strlen(ds1); | |
2581 | ||
2582 | /* ds2 can't be a descendant if it's smaller */ | |
2583 | if (strlen(ds2) < d1len) | |
2584 | return (B_FALSE); | |
2585 | ||
2586 | /* otherwise, compare strings and verify that there's a '/' char */ | |
2587 | return (ds2[d1len] == '/' && (strncmp(ds1, ds2, d1len) == 0)); | |
2588 | } | |
2589 | ||
34dc7c2f BB |
2590 | /* |
2591 | * Given a complete name, return just the portion that refers to the parent. | |
2592 | * Can return NULL if this is a pool. | |
2593 | */ | |
2594 | static int | |
2595 | parent_name(const char *path, char *buf, size_t buflen) | |
2596 | { | |
2597 | char *loc; | |
2598 | ||
2599 | if ((loc = strrchr(path, '/')) == NULL) | |
2600 | return (-1); | |
2601 | ||
2602 | (void) strncpy(buf, path, MIN(buflen, loc - path)); | |
2603 | buf[loc - path] = '\0'; | |
2604 | ||
2605 | return (0); | |
2606 | } | |
2607 | ||
2608 | /* | |
2609 | * If accept_ancestor is false, then check to make sure that the given path has | |
2610 | * a parent, and that it exists. If accept_ancestor is true, then find the | |
2611 | * closest existing ancestor for the given path. In prefixlen return the | |
2612 | * length of already existing prefix of the given path. We also fetch the | |
2613 | * 'zoned' property, which is used to validate property settings when creating | |
2614 | * new datasets. | |
2615 | */ | |
2616 | static int | |
2617 | check_parents(libzfs_handle_t *hdl, const char *path, uint64_t *zoned, | |
2618 | boolean_t accept_ancestor, int *prefixlen) | |
2619 | { | |
2598c001 | 2620 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
2621 | char parent[ZFS_MAXNAMELEN]; |
2622 | char *slash; | |
2623 | zfs_handle_t *zhp; | |
2624 | char errbuf[1024]; | |
428870ff | 2625 | uint64_t is_zoned; |
34dc7c2f | 2626 | |
fb5f0bc8 BB |
2627 | (void) snprintf(errbuf, sizeof (errbuf), |
2628 | dgettext(TEXT_DOMAIN, "cannot create '%s'"), path); | |
34dc7c2f BB |
2629 | |
2630 | /* get parent, and check to see if this is just a pool */ | |
2631 | if (parent_name(path, parent, sizeof (parent)) != 0) { | |
2632 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2633 | "missing dataset name")); | |
2634 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
2635 | } | |
2636 | ||
2637 | /* check to see if the pool exists */ | |
2638 | if ((slash = strchr(parent, '/')) == NULL) | |
2639 | slash = parent + strlen(parent); | |
2640 | (void) strncpy(zc.zc_name, parent, slash - parent); | |
2641 | zc.zc_name[slash - parent] = '\0'; | |
2642 | if (ioctl(hdl->libzfs_fd, ZFS_IOC_OBJSET_STATS, &zc) != 0 && | |
2643 | errno == ENOENT) { | |
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 | ||
2649 | /* check to see if the parent dataset exists */ | |
2650 | while ((zhp = make_dataset_handle(hdl, parent)) == NULL) { | |
2651 | if (errno == ENOENT && accept_ancestor) { | |
2652 | /* | |
2653 | * Go deeper to find an ancestor, give up on top level. | |
2654 | */ | |
2655 | if (parent_name(parent, parent, sizeof (parent)) != 0) { | |
2656 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2657 | "no such pool '%s'"), zc.zc_name); | |
2658 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
2659 | } | |
2660 | } else if (errno == ENOENT) { | |
2661 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2662 | "parent does not exist")); | |
2663 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
2664 | } else | |
2665 | return (zfs_standard_error(hdl, errno, errbuf)); | |
2666 | } | |
2667 | ||
428870ff BB |
2668 | is_zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); |
2669 | if (zoned != NULL) | |
2670 | *zoned = is_zoned; | |
2671 | ||
34dc7c2f | 2672 | /* we are in a non-global zone, but parent is in the global zone */ |
428870ff | 2673 | if (getzoneid() != GLOBAL_ZONEID && !is_zoned) { |
34dc7c2f BB |
2674 | (void) zfs_standard_error(hdl, EPERM, errbuf); |
2675 | zfs_close(zhp); | |
2676 | return (-1); | |
2677 | } | |
2678 | ||
2679 | /* make sure parent is a filesystem */ | |
2680 | if (zfs_get_type(zhp) != ZFS_TYPE_FILESYSTEM) { | |
2681 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2682 | "parent is not a filesystem")); | |
2683 | (void) zfs_error(hdl, EZFS_BADTYPE, errbuf); | |
2684 | zfs_close(zhp); | |
2685 | return (-1); | |
2686 | } | |
2687 | ||
2688 | zfs_close(zhp); | |
2689 | if (prefixlen != NULL) | |
2690 | *prefixlen = strlen(parent); | |
2691 | return (0); | |
2692 | } | |
2693 | ||
2694 | /* | |
2695 | * Finds whether the dataset of the given type(s) exists. | |
2696 | */ | |
2697 | boolean_t | |
2698 | zfs_dataset_exists(libzfs_handle_t *hdl, const char *path, zfs_type_t types) | |
2699 | { | |
2700 | zfs_handle_t *zhp; | |
2701 | ||
2702 | if (!zfs_validate_name(hdl, path, types, B_FALSE)) | |
2703 | return (B_FALSE); | |
2704 | ||
2705 | /* | |
2706 | * Try to get stats for the dataset, which will tell us if it exists. | |
2707 | */ | |
2708 | if ((zhp = make_dataset_handle(hdl, path)) != NULL) { | |
2709 | int ds_type = zhp->zfs_type; | |
2710 | ||
2711 | zfs_close(zhp); | |
2712 | if (types & ds_type) | |
2713 | return (B_TRUE); | |
2714 | } | |
2715 | return (B_FALSE); | |
2716 | } | |
2717 | ||
2718 | /* | |
2719 | * Given a path to 'target', create all the ancestors between | |
2720 | * the prefixlen portion of the path, and the target itself. | |
2721 | * Fail if the initial prefixlen-ancestor does not already exist. | |
2722 | */ | |
2723 | int | |
2724 | create_parents(libzfs_handle_t *hdl, char *target, int prefixlen) | |
2725 | { | |
2726 | zfs_handle_t *h; | |
2727 | char *cp; | |
2728 | const char *opname; | |
2729 | ||
2730 | /* make sure prefix exists */ | |
2731 | cp = target + prefixlen; | |
2732 | if (*cp != '/') { | |
2733 | assert(strchr(cp, '/') == NULL); | |
2734 | h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); | |
2735 | } else { | |
2736 | *cp = '\0'; | |
2737 | h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); | |
2738 | *cp = '/'; | |
2739 | } | |
2740 | if (h == NULL) | |
2741 | return (-1); | |
2742 | zfs_close(h); | |
2743 | ||
2744 | /* | |
2745 | * Attempt to create, mount, and share any ancestor filesystems, | |
2746 | * up to the prefixlen-long one. | |
2747 | */ | |
2748 | for (cp = target + prefixlen + 1; | |
c65aa5b2 | 2749 | (cp = strchr(cp, '/')); *cp = '/', cp++) { |
34dc7c2f BB |
2750 | char *logstr; |
2751 | ||
2752 | *cp = '\0'; | |
2753 | ||
2754 | h = make_dataset_handle(hdl, target); | |
2755 | if (h) { | |
2756 | /* it already exists, nothing to do here */ | |
2757 | zfs_close(h); | |
2758 | continue; | |
2759 | } | |
2760 | ||
2761 | logstr = hdl->libzfs_log_str; | |
2762 | hdl->libzfs_log_str = NULL; | |
2763 | if (zfs_create(hdl, target, ZFS_TYPE_FILESYSTEM, | |
2764 | NULL) != 0) { | |
2765 | hdl->libzfs_log_str = logstr; | |
2766 | opname = dgettext(TEXT_DOMAIN, "create"); | |
2767 | goto ancestorerr; | |
2768 | } | |
2769 | ||
2770 | hdl->libzfs_log_str = logstr; | |
2771 | h = zfs_open(hdl, target, ZFS_TYPE_FILESYSTEM); | |
2772 | if (h == NULL) { | |
2773 | opname = dgettext(TEXT_DOMAIN, "open"); | |
2774 | goto ancestorerr; | |
2775 | } | |
2776 | ||
2777 | if (zfs_mount(h, NULL, 0) != 0) { | |
2778 | opname = dgettext(TEXT_DOMAIN, "mount"); | |
2779 | goto ancestorerr; | |
2780 | } | |
2781 | ||
2782 | if (zfs_share(h) != 0) { | |
2783 | opname = dgettext(TEXT_DOMAIN, "share"); | |
2784 | goto ancestorerr; | |
2785 | } | |
2786 | ||
2787 | zfs_close(h); | |
2788 | } | |
2789 | ||
2790 | return (0); | |
2791 | ||
2792 | ancestorerr: | |
2793 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2794 | "failed to %s ancestor '%s'"), opname, target); | |
2795 | return (-1); | |
2796 | } | |
2797 | ||
2798 | /* | |
2799 | * Creates non-existing ancestors of the given path. | |
2800 | */ | |
2801 | int | |
2802 | zfs_create_ancestors(libzfs_handle_t *hdl, const char *path) | |
2803 | { | |
2804 | int prefix; | |
34dc7c2f | 2805 | char *path_copy; |
d4ed6673 | 2806 | int rc = 0; |
34dc7c2f | 2807 | |
428870ff | 2808 | if (check_parents(hdl, path, NULL, B_TRUE, &prefix) != 0) |
34dc7c2f BB |
2809 | return (-1); |
2810 | ||
2811 | if ((path_copy = strdup(path)) != NULL) { | |
2812 | rc = create_parents(hdl, path_copy, prefix); | |
2813 | free(path_copy); | |
2814 | } | |
2815 | if (path_copy == NULL || rc != 0) | |
2816 | return (-1); | |
2817 | ||
2818 | return (0); | |
2819 | } | |
2820 | ||
2821 | /* | |
2822 | * Create a new filesystem or volume. | |
2823 | */ | |
2824 | int | |
2825 | zfs_create(libzfs_handle_t *hdl, const char *path, zfs_type_t type, | |
2826 | nvlist_t *props) | |
2827 | { | |
2598c001 | 2828 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
2829 | int ret; |
2830 | uint64_t size = 0; | |
2831 | uint64_t blocksize = zfs_prop_default_numeric(ZFS_PROP_VOLBLOCKSIZE); | |
2832 | char errbuf[1024]; | |
2833 | uint64_t zoned; | |
2834 | ||
2835 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
2836 | "cannot create '%s'"), path); | |
2837 | ||
2838 | /* validate the path, taking care to note the extended error message */ | |
2839 | if (!zfs_validate_name(hdl, path, type, B_TRUE)) | |
2840 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
2841 | ||
2842 | /* validate parents exist */ | |
2843 | if (check_parents(hdl, path, &zoned, B_FALSE, NULL) != 0) | |
2844 | return (-1); | |
2845 | ||
2846 | /* | |
2847 | * The failure modes when creating a dataset of a different type over | |
2848 | * one that already exists is a little strange. In particular, if you | |
2849 | * try to create a dataset on top of an existing dataset, the ioctl() | |
2850 | * will return ENOENT, not EEXIST. To prevent this from happening, we | |
2851 | * first try to see if the dataset exists. | |
2852 | */ | |
2853 | (void) strlcpy(zc.zc_name, path, sizeof (zc.zc_name)); | |
2854 | if (zfs_dataset_exists(hdl, zc.zc_name, ZFS_TYPE_DATASET)) { | |
2855 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2856 | "dataset already exists")); | |
2857 | return (zfs_error(hdl, EZFS_EXISTS, errbuf)); | |
2858 | } | |
2859 | ||
2860 | if (type == ZFS_TYPE_VOLUME) | |
2861 | zc.zc_objset_type = DMU_OST_ZVOL; | |
2862 | else | |
2863 | zc.zc_objset_type = DMU_OST_ZFS; | |
2864 | ||
b128c09f | 2865 | if (props && (props = zfs_valid_proplist(hdl, type, props, |
34dc7c2f BB |
2866 | zoned, NULL, errbuf)) == 0) |
2867 | return (-1); | |
2868 | ||
2869 | if (type == ZFS_TYPE_VOLUME) { | |
2870 | /* | |
2871 | * If we are creating a volume, the size and block size must | |
2872 | * satisfy a few restraints. First, the blocksize must be a | |
2873 | * valid block size between SPA_{MIN,MAX}BLOCKSIZE. Second, the | |
2874 | * volsize must be a multiple of the block size, and cannot be | |
2875 | * zero. | |
2876 | */ | |
2877 | if (props == NULL || nvlist_lookup_uint64(props, | |
2878 | zfs_prop_to_name(ZFS_PROP_VOLSIZE), &size) != 0) { | |
2879 | nvlist_free(props); | |
2880 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2881 | "missing volume size")); | |
2882 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
2883 | } | |
2884 | ||
2885 | if ((ret = nvlist_lookup_uint64(props, | |
2886 | zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
2887 | &blocksize)) != 0) { | |
2888 | if (ret == ENOENT) { | |
2889 | blocksize = zfs_prop_default_numeric( | |
2890 | ZFS_PROP_VOLBLOCKSIZE); | |
2891 | } else { | |
2892 | nvlist_free(props); | |
2893 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2894 | "missing volume block size")); | |
2895 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
2896 | } | |
2897 | } | |
2898 | ||
2899 | if (size == 0) { | |
2900 | nvlist_free(props); | |
2901 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2902 | "volume size cannot be zero")); | |
2903 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
2904 | } | |
2905 | ||
2906 | if (size % blocksize != 0) { | |
2907 | nvlist_free(props); | |
2908 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2909 | "volume size must be a multiple of volume block " | |
2910 | "size")); | |
2911 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
2912 | } | |
2913 | } | |
2914 | ||
2915 | if (props && zcmd_write_src_nvlist(hdl, &zc, props) != 0) | |
2916 | return (-1); | |
2917 | nvlist_free(props); | |
2918 | ||
2919 | /* create the dataset */ | |
2920 | ret = zfs_ioctl(hdl, ZFS_IOC_CREATE, &zc); | |
2921 | ||
d603ed6c BB |
2922 | if (ret == 0 && type == ZFS_TYPE_VOLUME) { |
2923 | ret = zvol_create_link(hdl, path); | |
2924 | if (ret) { | |
2925 | (void) zfs_standard_error(hdl, errno, | |
2926 | dgettext(TEXT_DOMAIN, | |
2927 | "Volume successfully created, but device links " | |
2928 | "were not created")); | |
2929 | zcmd_free_nvlists(&zc); | |
2930 | return (-1); | |
2931 | } | |
2932 | } | |
2933 | ||
34dc7c2f BB |
2934 | zcmd_free_nvlists(&zc); |
2935 | ||
2936 | /* check for failure */ | |
2937 | if (ret != 0) { | |
2938 | char parent[ZFS_MAXNAMELEN]; | |
2939 | (void) parent_name(path, parent, sizeof (parent)); | |
2940 | ||
2941 | switch (errno) { | |
2942 | case ENOENT: | |
2943 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2944 | "no such parent '%s'"), parent); | |
2945 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
2946 | ||
2947 | case EINVAL: | |
2948 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2949 | "parent '%s' is not a filesystem"), parent); | |
2950 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
2951 | ||
2952 | case EDOM: | |
2953 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2954 | "volume block size must be power of 2 from " | |
2955 | "%u to %uk"), | |
2956 | (uint_t)SPA_MINBLOCKSIZE, | |
2957 | (uint_t)SPA_MAXBLOCKSIZE >> 10); | |
2958 | ||
2959 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
2960 | ||
2961 | case ENOTSUP: | |
2962 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2963 | "pool must be upgraded to set this " | |
2964 | "property or value")); | |
2965 | return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); | |
2966 | #ifdef _ILP32 | |
2967 | case EOVERFLOW: | |
2968 | /* | |
2969 | * This platform can't address a volume this big. | |
2970 | */ | |
2971 | if (type == ZFS_TYPE_VOLUME) | |
2972 | return (zfs_error(hdl, EZFS_VOLTOOBIG, | |
2973 | errbuf)); | |
2974 | #endif | |
2975 | /* FALLTHROUGH */ | |
2976 | default: | |
2977 | return (zfs_standard_error(hdl, errno, errbuf)); | |
2978 | } | |
2979 | } | |
2980 | ||
2981 | return (0); | |
2982 | } | |
2983 | ||
2984 | /* | |
2985 | * Destroys the given dataset. The caller must make sure that the filesystem | |
2986 | * isn't mounted, and that there are no active dependents. | |
2987 | */ | |
2988 | int | |
45d1cae3 | 2989 | zfs_destroy(zfs_handle_t *zhp, boolean_t defer) |
34dc7c2f | 2990 | { |
2598c001 | 2991 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
2992 | |
2993 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
2994 | ||
2995 | if (ZFS_IS_VOLUME(zhp)) { | |
d603ed6c BB |
2996 | if (zvol_remove_link(zhp->zfs_hdl, zhp->zfs_name) != 0) |
2997 | return (-1); | |
2998 | ||
34dc7c2f BB |
2999 | zc.zc_objset_type = DMU_OST_ZVOL; |
3000 | } else { | |
3001 | zc.zc_objset_type = DMU_OST_ZFS; | |
3002 | } | |
3003 | ||
45d1cae3 | 3004 | zc.zc_defer_destroy = defer; |
34dc7c2f BB |
3005 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_DESTROY, &zc) != 0) { |
3006 | return (zfs_standard_error_fmt(zhp->zfs_hdl, errno, | |
3007 | dgettext(TEXT_DOMAIN, "cannot destroy '%s'"), | |
3008 | zhp->zfs_name)); | |
3009 | } | |
3010 | ||
3011 | remove_mountpoint(zhp); | |
3012 | ||
3013 | return (0); | |
3014 | } | |
3015 | ||
3016 | struct destroydata { | |
3017 | char *snapname; | |
3018 | boolean_t gotone; | |
3019 | boolean_t closezhp; | |
3020 | }; | |
3021 | ||
3022 | static int | |
428870ff | 3023 | zfs_check_snap_cb(zfs_handle_t *zhp, void *arg) |
34dc7c2f BB |
3024 | { |
3025 | struct destroydata *dd = arg; | |
3026 | zfs_handle_t *szhp; | |
3027 | char name[ZFS_MAXNAMELEN]; | |
3028 | boolean_t closezhp = dd->closezhp; | |
428870ff | 3029 | int rv = 0; |
34dc7c2f BB |
3030 | |
3031 | (void) strlcpy(name, zhp->zfs_name, sizeof (name)); | |
3032 | (void) strlcat(name, "@", sizeof (name)); | |
3033 | (void) strlcat(name, dd->snapname, sizeof (name)); | |
3034 | ||
3035 | szhp = make_dataset_handle(zhp->zfs_hdl, name); | |
3036 | if (szhp) { | |
3037 | dd->gotone = B_TRUE; | |
3038 | zfs_close(szhp); | |
3039 | } | |
3040 | ||
d603ed6c BB |
3041 | if (zhp->zfs_type == ZFS_TYPE_VOLUME) { |
3042 | (void) zvol_remove_link(zhp->zfs_hdl, name); | |
3043 | /* | |
3044 | * NB: this is simply a best-effort. We don't want to | |
3045 | * return an error, because then we wouldn't visit all | |
3046 | * the volumes. | |
3047 | */ | |
3048 | } | |
3049 | ||
34dc7c2f | 3050 | dd->closezhp = B_TRUE; |
d603ed6c | 3051 | rv = zfs_iter_filesystems(zhp, zfs_check_snap_cb, arg); |
34dc7c2f BB |
3052 | if (closezhp) |
3053 | zfs_close(zhp); | |
3054 | return (rv); | |
3055 | } | |
3056 | ||
3057 | /* | |
3058 | * Destroys all snapshots with the given name in zhp & descendants. | |
3059 | */ | |
3060 | int | |
45d1cae3 | 3061 | zfs_destroy_snaps(zfs_handle_t *zhp, char *snapname, boolean_t defer) |
34dc7c2f | 3062 | { |
2598c001 | 3063 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
3064 | int ret; |
3065 | struct destroydata dd = { 0 }; | |
3066 | ||
3067 | dd.snapname = snapname; | |
428870ff | 3068 | (void) zfs_check_snap_cb(zhp, &dd); |
34dc7c2f BB |
3069 | |
3070 | if (!dd.gotone) { | |
3071 | return (zfs_standard_error_fmt(zhp->zfs_hdl, ENOENT, | |
3072 | dgettext(TEXT_DOMAIN, "cannot destroy '%s@%s'"), | |
3073 | zhp->zfs_name, snapname)); | |
3074 | } | |
3075 | ||
3076 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
3077 | (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); | |
45d1cae3 | 3078 | zc.zc_defer_destroy = defer; |
34dc7c2f BB |
3079 | |
3080 | ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_DESTROY_SNAPS, &zc); | |
3081 | if (ret != 0) { | |
3082 | char errbuf[1024]; | |
3083 | ||
3084 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3085 | "cannot destroy '%s@%s'"), zc.zc_name, snapname); | |
3086 | ||
3087 | switch (errno) { | |
3088 | case EEXIST: | |
3089 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
3090 | "snapshot is cloned")); | |
3091 | return (zfs_error(zhp->zfs_hdl, EZFS_EXISTS, errbuf)); | |
3092 | ||
3093 | default: | |
3094 | return (zfs_standard_error(zhp->zfs_hdl, errno, | |
3095 | errbuf)); | |
3096 | } | |
3097 | } | |
3098 | ||
3099 | return (0); | |
3100 | } | |
3101 | ||
3102 | /* | |
3103 | * Clones the given dataset. The target must be of the same type as the source. | |
3104 | */ | |
3105 | int | |
3106 | zfs_clone(zfs_handle_t *zhp, const char *target, nvlist_t *props) | |
3107 | { | |
2598c001 | 3108 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
3109 | char parent[ZFS_MAXNAMELEN]; |
3110 | int ret; | |
3111 | char errbuf[1024]; | |
3112 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
3113 | zfs_type_t type; | |
3114 | uint64_t zoned; | |
3115 | ||
3116 | assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); | |
3117 | ||
3118 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3119 | "cannot create '%s'"), target); | |
3120 | ||
3121 | /* validate the target name */ | |
3122 | if (!zfs_validate_name(hdl, target, ZFS_TYPE_FILESYSTEM, B_TRUE)) | |
3123 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
3124 | ||
3125 | /* validate parents exist */ | |
3126 | if (check_parents(hdl, target, &zoned, B_FALSE, NULL) != 0) | |
3127 | return (-1); | |
3128 | ||
3129 | (void) parent_name(target, parent, sizeof (parent)); | |
3130 | ||
3131 | /* do the clone */ | |
3132 | if (ZFS_IS_VOLUME(zhp)) { | |
3133 | zc.zc_objset_type = DMU_OST_ZVOL; | |
3134 | type = ZFS_TYPE_VOLUME; | |
3135 | } else { | |
3136 | zc.zc_objset_type = DMU_OST_ZFS; | |
3137 | type = ZFS_TYPE_FILESYSTEM; | |
3138 | } | |
3139 | ||
3140 | if (props) { | |
b128c09f BB |
3141 | if ((props = zfs_valid_proplist(hdl, type, props, zoned, |
3142 | zhp, errbuf)) == NULL) | |
34dc7c2f BB |
3143 | return (-1); |
3144 | ||
3145 | if (zcmd_write_src_nvlist(hdl, &zc, props) != 0) { | |
3146 | nvlist_free(props); | |
3147 | return (-1); | |
3148 | } | |
3149 | ||
3150 | nvlist_free(props); | |
3151 | } | |
3152 | ||
3153 | (void) strlcpy(zc.zc_name, target, sizeof (zc.zc_name)); | |
3154 | (void) strlcpy(zc.zc_value, zhp->zfs_name, sizeof (zc.zc_value)); | |
3155 | ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_CREATE, &zc); | |
3156 | ||
3157 | zcmd_free_nvlists(&zc); | |
3158 | ||
3159 | if (ret != 0) { | |
3160 | switch (errno) { | |
3161 | ||
3162 | case ENOENT: | |
3163 | /* | |
3164 | * The parent doesn't exist. We should have caught this | |
3165 | * above, but there may a race condition that has since | |
3166 | * destroyed the parent. | |
3167 | * | |
3168 | * At this point, we don't know whether it's the source | |
3169 | * that doesn't exist anymore, or whether the target | |
3170 | * dataset doesn't exist. | |
3171 | */ | |
3172 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
3173 | "no such parent '%s'"), parent); | |
3174 | return (zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf)); | |
3175 | ||
3176 | case EXDEV: | |
3177 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
3178 | "source and target pools differ")); | |
3179 | return (zfs_error(zhp->zfs_hdl, EZFS_CROSSTARGET, | |
3180 | errbuf)); | |
3181 | ||
3182 | default: | |
3183 | return (zfs_standard_error(zhp->zfs_hdl, errno, | |
3184 | errbuf)); | |
3185 | } | |
d603ed6c BB |
3186 | } else if (ZFS_IS_VOLUME(zhp)) { |
3187 | ret = zvol_create_link(zhp->zfs_hdl, target); | |
34dc7c2f BB |
3188 | } |
3189 | ||
3190 | return (ret); | |
3191 | } | |
3192 | ||
d603ed6c BB |
3193 | typedef struct promote_data { |
3194 | char cb_mountpoint[MAXPATHLEN]; | |
3195 | const char *cb_target; | |
3196 | const char *cb_errbuf; | |
3197 | uint64_t cb_pivot_txg; | |
3198 | } promote_data_t; | |
3199 | ||
3200 | static int | |
3201 | promote_snap_cb(zfs_handle_t *zhp, void *data) | |
3202 | { | |
3203 | promote_data_t *pd = data; | |
3204 | zfs_handle_t *szhp; | |
3205 | char snapname[MAXPATHLEN]; | |
3206 | int rv = 0; | |
3207 | ||
3208 | /* We don't care about snapshots after the pivot point */ | |
3209 | if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > pd->cb_pivot_txg) { | |
3210 | zfs_close(zhp); | |
3211 | return (0); | |
3212 | } | |
3213 | ||
3214 | /* Remove the device link if it's a zvol. */ | |
3215 | if (ZFS_IS_VOLUME(zhp)) | |
3216 | (void) zvol_remove_link(zhp->zfs_hdl, zhp->zfs_name); | |
3217 | ||
3218 | /* Check for conflicting names */ | |
3219 | (void) strlcpy(snapname, pd->cb_target, sizeof (snapname)); | |
3220 | (void) strlcat(snapname, strchr(zhp->zfs_name, '@'), sizeof (snapname)); | |
3221 | szhp = make_dataset_handle(zhp->zfs_hdl, snapname); | |
3222 | if (szhp != NULL) { | |
3223 | zfs_close(szhp); | |
3224 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
3225 | "snapshot name '%s' from origin \n" | |
3226 | "conflicts with '%s' from target"), | |
3227 | zhp->zfs_name, snapname); | |
3228 | rv = zfs_error(zhp->zfs_hdl, EZFS_EXISTS, pd->cb_errbuf); | |
3229 | } | |
3230 | zfs_close(zhp); | |
3231 | return (rv); | |
3232 | } | |
3233 | ||
3234 | static int | |
3235 | promote_snap_done_cb(zfs_handle_t *zhp, void *data) | |
3236 | { | |
3237 | promote_data_t *pd = data; | |
3238 | ||
3239 | /* We don't care about snapshots after the pivot point */ | |
3240 | if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) <= pd->cb_pivot_txg) { | |
3241 | /* Create the device link if it's a zvol. */ | |
3242 | if (ZFS_IS_VOLUME(zhp)) | |
3243 | (void) zvol_create_link(zhp->zfs_hdl, zhp->zfs_name); | |
3244 | } | |
3245 | ||
3246 | zfs_close(zhp); | |
3247 | return (0); | |
3248 | } | |
3249 | ||
34dc7c2f BB |
3250 | /* |
3251 | * Promotes the given clone fs to be the clone parent. | |
3252 | */ | |
3253 | int | |
3254 | zfs_promote(zfs_handle_t *zhp) | |
3255 | { | |
3256 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
2598c001 | 3257 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f | 3258 | char parent[MAXPATHLEN]; |
d603ed6c | 3259 | char *cp; |
34dc7c2f | 3260 | int ret; |
d603ed6c BB |
3261 | zfs_handle_t *pzhp; |
3262 | promote_data_t pd; | |
34dc7c2f BB |
3263 | char errbuf[1024]; |
3264 | ||
3265 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3266 | "cannot promote '%s'"), zhp->zfs_name); | |
3267 | ||
3268 | if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { | |
3269 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3270 | "snapshots can not be promoted")); | |
3271 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
3272 | } | |
3273 | ||
3274 | (void) strlcpy(parent, zhp->zfs_dmustats.dds_origin, sizeof (parent)); | |
3275 | if (parent[0] == '\0') { | |
3276 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3277 | "not a cloned filesystem")); | |
3278 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
3279 | } | |
d603ed6c BB |
3280 | cp = strchr(parent, '@'); |
3281 | *cp = '\0'; | |
3282 | ||
3283 | /* Walk the snapshots we will be moving */ | |
3284 | pzhp = zfs_open(hdl, zhp->zfs_dmustats.dds_origin, ZFS_TYPE_SNAPSHOT); | |
3285 | if (pzhp == NULL) | |
3286 | return (-1); | |
3287 | pd.cb_pivot_txg = zfs_prop_get_int(pzhp, ZFS_PROP_CREATETXG); | |
3288 | zfs_close(pzhp); | |
3289 | pd.cb_target = zhp->zfs_name; | |
3290 | pd.cb_errbuf = errbuf; | |
3291 | pzhp = zfs_open(hdl, parent, ZFS_TYPE_DATASET); | |
3292 | if (pzhp == NULL) | |
3293 | return (-1); | |
3294 | (void) zfs_prop_get(pzhp, ZFS_PROP_MOUNTPOINT, pd.cb_mountpoint, | |
3295 | sizeof (pd.cb_mountpoint), NULL, NULL, 0, FALSE); | |
3296 | ret = zfs_iter_snapshots(pzhp, promote_snap_cb, &pd); | |
3297 | if (ret != 0) { | |
3298 | zfs_close(pzhp); | |
3299 | return (-1); | |
3300 | } | |
34dc7c2f | 3301 | |
d603ed6c | 3302 | /* issue the ioctl */ |
34dc7c2f BB |
3303 | (void) strlcpy(zc.zc_value, zhp->zfs_dmustats.dds_origin, |
3304 | sizeof (zc.zc_value)); | |
3305 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
3306 | ret = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc); | |
3307 | ||
3308 | if (ret != 0) { | |
3309 | int save_errno = errno; | |
3310 | ||
d603ed6c BB |
3311 | (void) zfs_iter_snapshots(pzhp, promote_snap_done_cb, &pd); |
3312 | zfs_close(pzhp); | |
3313 | ||
34dc7c2f BB |
3314 | switch (save_errno) { |
3315 | case EEXIST: | |
d603ed6c BB |
3316 | /* |
3317 | * There is a conflicting snapshot name. We | |
3318 | * should have caught this above, but they could | |
3319 | * have renamed something in the mean time. | |
3320 | */ | |
34dc7c2f | 3321 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
428870ff BB |
3322 | "conflicting snapshot '%s' from parent '%s'"), |
3323 | zc.zc_string, parent); | |
34dc7c2f BB |
3324 | return (zfs_error(hdl, EZFS_EXISTS, errbuf)); |
3325 | ||
3326 | default: | |
3327 | return (zfs_standard_error(hdl, save_errno, errbuf)); | |
3328 | } | |
d603ed6c BB |
3329 | } else { |
3330 | (void) zfs_iter_snapshots(zhp, promote_snap_done_cb, &pd); | |
34dc7c2f | 3331 | } |
d603ed6c BB |
3332 | |
3333 | zfs_close(pzhp); | |
3334 | return (ret); | |
3335 | } | |
3336 | ||
3337 | struct createdata { | |
3338 | const char *cd_snapname; | |
3339 | int cd_ifexists; | |
3340 | }; | |
3341 | ||
3342 | static int | |
3343 | zfs_create_link_cb(zfs_handle_t *zhp, void *arg) | |
3344 | { | |
3345 | struct createdata *cd = arg; | |
3346 | int ret; | |
3347 | ||
3348 | if (zhp->zfs_type == ZFS_TYPE_VOLUME) { | |
3349 | char name[MAXPATHLEN]; | |
3350 | ||
3351 | (void) strlcpy(name, zhp->zfs_name, sizeof (name)); | |
3352 | (void) strlcat(name, "@", sizeof (name)); | |
3353 | (void) strlcat(name, cd->cd_snapname, sizeof (name)); | |
3354 | (void) zvol_create_link_common(zhp->zfs_hdl, name, | |
3355 | cd->cd_ifexists); | |
3356 | /* | |
3357 | * NB: this is simply a best-effort. We don't want to | |
3358 | * return an error, because then we wouldn't visit all | |
3359 | * the volumes. | |
3360 | */ | |
3361 | } | |
3362 | ||
3363 | ret = zfs_iter_filesystems(zhp, zfs_create_link_cb, cd); | |
3364 | ||
3365 | zfs_close(zhp); | |
3366 | ||
34dc7c2f BB |
3367 | return (ret); |
3368 | } | |
3369 | ||
3370 | /* | |
3371 | * Takes a snapshot of the given dataset. | |
3372 | */ | |
3373 | int | |
b128c09f BB |
3374 | zfs_snapshot(libzfs_handle_t *hdl, const char *path, boolean_t recursive, |
3375 | nvlist_t *props) | |
34dc7c2f BB |
3376 | { |
3377 | const char *delim; | |
b128c09f | 3378 | char parent[ZFS_MAXNAMELEN]; |
34dc7c2f | 3379 | zfs_handle_t *zhp; |
2598c001 | 3380 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
3381 | int ret; |
3382 | char errbuf[1024]; | |
3383 | ||
3384 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3385 | "cannot snapshot '%s'"), path); | |
3386 | ||
3387 | /* validate the target name */ | |
3388 | if (!zfs_validate_name(hdl, path, ZFS_TYPE_SNAPSHOT, B_TRUE)) | |
3389 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
3390 | ||
b128c09f BB |
3391 | if (props) { |
3392 | if ((props = zfs_valid_proplist(hdl, ZFS_TYPE_SNAPSHOT, | |
3393 | props, B_FALSE, NULL, errbuf)) == NULL) | |
3394 | return (-1); | |
3395 | ||
3396 | if (zcmd_write_src_nvlist(hdl, &zc, props) != 0) { | |
3397 | nvlist_free(props); | |
3398 | return (-1); | |
3399 | } | |
3400 | ||
3401 | nvlist_free(props); | |
3402 | } | |
3403 | ||
34dc7c2f BB |
3404 | /* make sure the parent exists and is of the appropriate type */ |
3405 | delim = strchr(path, '@'); | |
34dc7c2f BB |
3406 | (void) strncpy(parent, path, delim - path); |
3407 | parent[delim - path] = '\0'; | |
3408 | ||
3409 | if ((zhp = zfs_open(hdl, parent, ZFS_TYPE_FILESYSTEM | | |
3410 | ZFS_TYPE_VOLUME)) == NULL) { | |
b128c09f | 3411 | zcmd_free_nvlists(&zc); |
34dc7c2f BB |
3412 | return (-1); |
3413 | } | |
3414 | ||
3415 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
3416 | (void) strlcpy(zc.zc_value, delim+1, sizeof (zc.zc_value)); | |
3417 | if (ZFS_IS_VOLUME(zhp)) | |
3418 | zc.zc_objset_type = DMU_OST_ZVOL; | |
3419 | else | |
3420 | zc.zc_objset_type = DMU_OST_ZFS; | |
3421 | zc.zc_cookie = recursive; | |
3422 | ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_SNAPSHOT, &zc); | |
3423 | ||
b128c09f BB |
3424 | zcmd_free_nvlists(&zc); |
3425 | ||
34dc7c2f BB |
3426 | /* |
3427 | * if it was recursive, the one that actually failed will be in | |
3428 | * zc.zc_name. | |
3429 | */ | |
d603ed6c | 3430 | if (ret != 0) |
34dc7c2f BB |
3431 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, |
3432 | "cannot create snapshot '%s@%s'"), zc.zc_name, zc.zc_value); | |
d603ed6c BB |
3433 | |
3434 | if (ret == 0 && recursive) { | |
3435 | struct createdata cd; | |
3436 | ||
3437 | cd.cd_snapname = delim + 1; | |
3438 | cd.cd_ifexists = B_FALSE; | |
3439 | (void) zfs_iter_filesystems(zhp, zfs_create_link_cb, &cd); | |
3440 | } | |
3441 | if (ret == 0 && zhp->zfs_type == ZFS_TYPE_VOLUME) { | |
3442 | ret = zvol_create_link(zhp->zfs_hdl, path); | |
3443 | if (ret != 0) { | |
3444 | (void) zfs_standard_error(hdl, errno, | |
3445 | dgettext(TEXT_DOMAIN, | |
3446 | "Volume successfully snapshotted, but device links " | |
3447 | "were not created")); | |
3448 | zfs_close(zhp); | |
3449 | return (-1); | |
3450 | } | |
428870ff | 3451 | } |
34dc7c2f | 3452 | |
d603ed6c BB |
3453 | if (ret != 0) |
3454 | (void) zfs_standard_error(hdl, errno, errbuf); | |
3455 | ||
34dc7c2f BB |
3456 | zfs_close(zhp); |
3457 | ||
3458 | return (ret); | |
3459 | } | |
3460 | ||
3461 | /* | |
3462 | * Destroy any more recent snapshots. We invoke this callback on any dependents | |
3463 | * of the snapshot first. If the 'cb_dependent' member is non-zero, then this | |
3464 | * is a dependent and we should just destroy it without checking the transaction | |
3465 | * group. | |
3466 | */ | |
3467 | typedef struct rollback_data { | |
3468 | const char *cb_target; /* the snapshot */ | |
3469 | uint64_t cb_create; /* creation time reference */ | |
3470 | boolean_t cb_error; | |
3471 | boolean_t cb_dependent; | |
3472 | boolean_t cb_force; | |
3473 | } rollback_data_t; | |
3474 | ||
3475 | static int | |
3476 | rollback_destroy(zfs_handle_t *zhp, void *data) | |
3477 | { | |
3478 | rollback_data_t *cbp = data; | |
3479 | ||
3480 | if (!cbp->cb_dependent) { | |
3481 | if (strcmp(zhp->zfs_name, cbp->cb_target) != 0 && | |
3482 | zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT && | |
3483 | zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > | |
3484 | cbp->cb_create) { | |
3485 | char *logstr; | |
3486 | ||
3487 | cbp->cb_dependent = B_TRUE; | |
3488 | cbp->cb_error |= zfs_iter_dependents(zhp, B_FALSE, | |
3489 | rollback_destroy, cbp); | |
3490 | cbp->cb_dependent = B_FALSE; | |
3491 | ||
3492 | logstr = zhp->zfs_hdl->libzfs_log_str; | |
3493 | zhp->zfs_hdl->libzfs_log_str = NULL; | |
45d1cae3 | 3494 | cbp->cb_error |= zfs_destroy(zhp, B_FALSE); |
34dc7c2f BB |
3495 | zhp->zfs_hdl->libzfs_log_str = logstr; |
3496 | } | |
3497 | } else { | |
3498 | /* We must destroy this clone; first unmount it */ | |
3499 | prop_changelist_t *clp; | |
3500 | ||
b128c09f | 3501 | clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, |
34dc7c2f BB |
3502 | cbp->cb_force ? MS_FORCE: 0); |
3503 | if (clp == NULL || changelist_prefix(clp) != 0) { | |
3504 | cbp->cb_error = B_TRUE; | |
3505 | zfs_close(zhp); | |
3506 | return (0); | |
3507 | } | |
45d1cae3 | 3508 | if (zfs_destroy(zhp, B_FALSE) != 0) |
34dc7c2f BB |
3509 | cbp->cb_error = B_TRUE; |
3510 | else | |
3511 | changelist_remove(clp, zhp->zfs_name); | |
3512 | (void) changelist_postfix(clp); | |
3513 | changelist_free(clp); | |
3514 | } | |
3515 | ||
3516 | zfs_close(zhp); | |
3517 | return (0); | |
3518 | } | |
3519 | ||
3520 | /* | |
3521 | * Given a dataset, rollback to a specific snapshot, discarding any | |
3522 | * data changes since then and making it the active dataset. | |
3523 | * | |
3524 | * Any snapshots more recent than the target are destroyed, along with | |
3525 | * their dependents. | |
3526 | */ | |
3527 | int | |
3528 | zfs_rollback(zfs_handle_t *zhp, zfs_handle_t *snap, boolean_t force) | |
3529 | { | |
3530 | rollback_data_t cb = { 0 }; | |
3531 | int err; | |
2598c001 | 3532 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f | 3533 | boolean_t restore_resv = 0; |
d4ed6673 BB |
3534 | uint64_t old_volsize = 0, new_volsize; |
3535 | zfs_prop_t resv_prop = { 0 }; | |
34dc7c2f BB |
3536 | |
3537 | assert(zhp->zfs_type == ZFS_TYPE_FILESYSTEM || | |
3538 | zhp->zfs_type == ZFS_TYPE_VOLUME); | |
3539 | ||
3540 | /* | |
3541 | * Destroy all recent snapshots and its dependends. | |
3542 | */ | |
3543 | cb.cb_force = force; | |
3544 | cb.cb_target = snap->zfs_name; | |
3545 | cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); | |
3546 | (void) zfs_iter_children(zhp, rollback_destroy, &cb); | |
3547 | ||
3548 | if (cb.cb_error) | |
3549 | return (-1); | |
3550 | ||
3551 | /* | |
3552 | * Now that we have verified that the snapshot is the latest, | |
3553 | * rollback to the given snapshot. | |
3554 | */ | |
3555 | ||
3556 | if (zhp->zfs_type == ZFS_TYPE_VOLUME) { | |
d603ed6c BB |
3557 | if (zvol_remove_link(zhp->zfs_hdl, zhp->zfs_name) != 0) |
3558 | return (-1); | |
34dc7c2f BB |
3559 | if (zfs_which_resv_prop(zhp, &resv_prop) < 0) |
3560 | return (-1); | |
3561 | old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); | |
3562 | restore_resv = | |
3563 | (old_volsize == zfs_prop_get_int(zhp, resv_prop)); | |
3564 | } | |
3565 | ||
3566 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
3567 | ||
3568 | if (ZFS_IS_VOLUME(zhp)) | |
3569 | zc.zc_objset_type = DMU_OST_ZVOL; | |
3570 | else | |
3571 | zc.zc_objset_type = DMU_OST_ZFS; | |
3572 | ||
3573 | /* | |
3574 | * We rely on zfs_iter_children() to verify that there are no | |
3575 | * newer snapshots for the given dataset. Therefore, we can | |
3576 | * simply pass the name on to the ioctl() call. There is still | |
3577 | * an unlikely race condition where the user has taken a | |
3578 | * snapshot since we verified that this was the most recent. | |
3579 | * | |
3580 | */ | |
3581 | if ((err = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_ROLLBACK, &zc)) != 0) { | |
3582 | (void) zfs_standard_error_fmt(zhp->zfs_hdl, errno, | |
3583 | dgettext(TEXT_DOMAIN, "cannot rollback '%s'"), | |
3584 | zhp->zfs_name); | |
3585 | return (err); | |
3586 | } | |
3587 | ||
3588 | /* | |
3589 | * For volumes, if the pre-rollback volsize matched the pre- | |
3590 | * rollback reservation and the volsize has changed then set | |
3591 | * the reservation property to the post-rollback volsize. | |
3592 | * Make a new handle since the rollback closed the dataset. | |
3593 | */ | |
3594 | if ((zhp->zfs_type == ZFS_TYPE_VOLUME) && | |
3595 | (zhp = make_dataset_handle(zhp->zfs_hdl, zhp->zfs_name))) { | |
d603ed6c BB |
3596 | if ((err = zvol_create_link(zhp->zfs_hdl, zhp->zfs_name))) { |
3597 | zfs_close(zhp); | |
3598 | return (err); | |
3599 | } | |
34dc7c2f BB |
3600 | if (restore_resv) { |
3601 | new_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE); | |
3602 | if (old_volsize != new_volsize) | |
3603 | err = zfs_prop_set_int(zhp, resv_prop, | |
3604 | new_volsize); | |
3605 | } | |
3606 | zfs_close(zhp); | |
3607 | } | |
3608 | return (err); | |
3609 | } | |
3610 | ||
3611 | /* | |
3612 | * Iterate over all dependents for a given dataset. This includes both | |
3613 | * hierarchical dependents (children) and data dependents (snapshots and | |
3614 | * clones). The bulk of the processing occurs in get_dependents() in | |
3615 | * libzfs_graph.c. | |
3616 | */ | |
3617 | int | |
3618 | zfs_iter_dependents(zfs_handle_t *zhp, boolean_t allowrecursion, | |
3619 | zfs_iter_f func, void *data) | |
3620 | { | |
3621 | char **dependents; | |
3622 | size_t count; | |
3623 | int i; | |
3624 | zfs_handle_t *child; | |
3625 | int ret = 0; | |
3626 | ||
3627 | if (get_dependents(zhp->zfs_hdl, allowrecursion, zhp->zfs_name, | |
3628 | &dependents, &count) != 0) | |
3629 | return (-1); | |
3630 | ||
3631 | for (i = 0; i < count; i++) { | |
3632 | if ((child = make_dataset_handle(zhp->zfs_hdl, | |
3633 | dependents[i])) == NULL) | |
3634 | continue; | |
3635 | ||
3636 | if ((ret = func(child, data)) != 0) | |
3637 | break; | |
3638 | } | |
3639 | ||
3640 | for (i = 0; i < count; i++) | |
3641 | free(dependents[i]); | |
3642 | free(dependents); | |
3643 | ||
3644 | return (ret); | |
3645 | } | |
3646 | ||
3647 | /* | |
3648 | * Renames the given dataset. | |
3649 | */ | |
3650 | int | |
3651 | zfs_rename(zfs_handle_t *zhp, const char *target, boolean_t recursive) | |
3652 | { | |
3653 | int ret; | |
2598c001 | 3654 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
34dc7c2f BB |
3655 | char *delim; |
3656 | prop_changelist_t *cl = NULL; | |
3657 | zfs_handle_t *zhrp = NULL; | |
3658 | char *parentname = NULL; | |
3659 | char parent[ZFS_MAXNAMELEN]; | |
3660 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
3661 | char errbuf[1024]; | |
3662 | ||
3663 | /* if we have the same exact name, just return success */ | |
3664 | if (strcmp(zhp->zfs_name, target) == 0) | |
3665 | return (0); | |
3666 | ||
3667 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3668 | "cannot rename to '%s'"), target); | |
3669 | ||
3670 | /* | |
3671 | * Make sure the target name is valid | |
3672 | */ | |
3673 | if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { | |
3674 | if ((strchr(target, '@') == NULL) || | |
3675 | *target == '@') { | |
3676 | /* | |
3677 | * Snapshot target name is abbreviated, | |
3678 | * reconstruct full dataset name | |
3679 | */ | |
3680 | (void) strlcpy(parent, zhp->zfs_name, | |
3681 | sizeof (parent)); | |
3682 | delim = strchr(parent, '@'); | |
3683 | if (strchr(target, '@') == NULL) | |
3684 | *(++delim) = '\0'; | |
3685 | else | |
3686 | *delim = '\0'; | |
3687 | (void) strlcat(parent, target, sizeof (parent)); | |
3688 | target = parent; | |
3689 | } else { | |
3690 | /* | |
3691 | * Make sure we're renaming within the same dataset. | |
3692 | */ | |
3693 | delim = strchr(target, '@'); | |
3694 | if (strncmp(zhp->zfs_name, target, delim - target) | |
3695 | != 0 || zhp->zfs_name[delim - target] != '@') { | |
3696 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3697 | "snapshots must be part of same " | |
3698 | "dataset")); | |
3699 | return (zfs_error(hdl, EZFS_CROSSTARGET, | |
3700 | errbuf)); | |
3701 | } | |
3702 | } | |
3703 | if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) | |
3704 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
3705 | } else { | |
3706 | if (recursive) { | |
3707 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3708 | "recursive rename must be a snapshot")); | |
3709 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
3710 | } | |
3711 | ||
3712 | if (!zfs_validate_name(hdl, target, zhp->zfs_type, B_TRUE)) | |
3713 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
34dc7c2f BB |
3714 | |
3715 | /* validate parents */ | |
428870ff | 3716 | if (check_parents(hdl, target, NULL, B_FALSE, NULL) != 0) |
34dc7c2f BB |
3717 | return (-1); |
3718 | ||
34dc7c2f BB |
3719 | /* make sure we're in the same pool */ |
3720 | verify((delim = strchr(target, '/')) != NULL); | |
3721 | if (strncmp(zhp->zfs_name, target, delim - target) != 0 || | |
3722 | zhp->zfs_name[delim - target] != '/') { | |
3723 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3724 | "datasets must be within same pool")); | |
3725 | return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); | |
3726 | } | |
3727 | ||
3728 | /* new name cannot be a child of the current dataset name */ | |
428870ff | 3729 | if (is_descendant(zhp->zfs_name, target)) { |
34dc7c2f | 3730 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
428870ff | 3731 | "New dataset name cannot be a descendant of " |
34dc7c2f BB |
3732 | "current dataset name")); |
3733 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
3734 | } | |
3735 | } | |
3736 | ||
3737 | (void) snprintf(errbuf, sizeof (errbuf), | |
3738 | dgettext(TEXT_DOMAIN, "cannot rename '%s'"), zhp->zfs_name); | |
3739 | ||
3740 | if (getzoneid() == GLOBAL_ZONEID && | |
3741 | zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) { | |
3742 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3743 | "dataset is used in a non-global zone")); | |
3744 | return (zfs_error(hdl, EZFS_ZONED, errbuf)); | |
3745 | } | |
3746 | ||
3747 | if (recursive) { | |
d603ed6c | 3748 | struct destroydata dd; |
34dc7c2f BB |
3749 | |
3750 | parentname = zfs_strdup(zhp->zfs_hdl, zhp->zfs_name); | |
3751 | if (parentname == NULL) { | |
3752 | ret = -1; | |
3753 | goto error; | |
3754 | } | |
3755 | delim = strchr(parentname, '@'); | |
3756 | *delim = '\0'; | |
3757 | zhrp = zfs_open(zhp->zfs_hdl, parentname, ZFS_TYPE_DATASET); | |
3758 | if (zhrp == NULL) { | |
3759 | ret = -1; | |
3760 | goto error; | |
3761 | } | |
3762 | ||
d603ed6c BB |
3763 | dd.snapname = delim + 1; |
3764 | dd.gotone = B_FALSE; | |
3765 | dd.closezhp = B_TRUE; | |
3766 | ||
3767 | /* We remove any zvol links prior to renaming them */ | |
3768 | ret = zfs_iter_filesystems(zhrp, zfs_check_snap_cb, &dd); | |
3769 | if (ret) { | |
3770 | goto error; | |
3771 | } | |
34dc7c2f | 3772 | } else { |
b128c09f | 3773 | if ((cl = changelist_gather(zhp, ZFS_PROP_NAME, 0, 0)) == NULL) |
34dc7c2f BB |
3774 | return (-1); |
3775 | ||
3776 | if (changelist_haszonedchild(cl)) { | |
3777 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3778 | "child dataset with inherited mountpoint is used " | |
3779 | "in a non-global zone")); | |
3780 | (void) zfs_error(hdl, EZFS_ZONED, errbuf); | |
d4ed6673 | 3781 | ret = -1; |
34dc7c2f BB |
3782 | goto error; |
3783 | } | |
3784 | ||
3785 | if ((ret = changelist_prefix(cl)) != 0) | |
3786 | goto error; | |
3787 | } | |
3788 | ||
3789 | if (ZFS_IS_VOLUME(zhp)) | |
3790 | zc.zc_objset_type = DMU_OST_ZVOL; | |
3791 | else | |
3792 | zc.zc_objset_type = DMU_OST_ZFS; | |
3793 | ||
3794 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
3795 | (void) strlcpy(zc.zc_value, target, sizeof (zc.zc_value)); | |
3796 | ||
3797 | zc.zc_cookie = recursive; | |
3798 | ||
3799 | if ((ret = zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_RENAME, &zc)) != 0) { | |
3800 | /* | |
3801 | * if it was recursive, the one that actually failed will | |
3802 | * be in zc.zc_name | |
3803 | */ | |
3804 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3805 | "cannot rename '%s'"), zc.zc_name); | |
3806 | ||
3807 | if (recursive && errno == EEXIST) { | |
3808 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3809 | "a child dataset already has a snapshot " | |
3810 | "with the new name")); | |
3811 | (void) zfs_error(hdl, EZFS_EXISTS, errbuf); | |
3812 | } else { | |
3813 | (void) zfs_standard_error(zhp->zfs_hdl, errno, errbuf); | |
3814 | } | |
3815 | ||
3816 | /* | |
3817 | * On failure, we still want to remount any filesystems that | |
3818 | * were previously mounted, so we don't alter the system state. | |
3819 | */ | |
d603ed6c BB |
3820 | if (recursive) { |
3821 | struct createdata cd; | |
3822 | ||
3823 | /* only create links for datasets that had existed */ | |
3824 | cd.cd_snapname = delim + 1; | |
3825 | cd.cd_ifexists = B_TRUE; | |
3826 | (void) zfs_iter_filesystems(zhrp, zfs_create_link_cb, | |
3827 | &cd); | |
3828 | } else { | |
34dc7c2f | 3829 | (void) changelist_postfix(cl); |
d603ed6c | 3830 | } |
34dc7c2f | 3831 | } else { |
d603ed6c BB |
3832 | if (recursive) { |
3833 | struct createdata cd; | |
3834 | ||
3835 | /* only create links for datasets that had existed */ | |
3836 | cd.cd_snapname = strchr(target, '@') + 1; | |
3837 | cd.cd_ifexists = B_TRUE; | |
3838 | ret = zfs_iter_filesystems(zhrp, zfs_create_link_cb, | |
3839 | &cd); | |
3840 | } else { | |
34dc7c2f BB |
3841 | changelist_rename(cl, zfs_get_name(zhp), target); |
3842 | ret = changelist_postfix(cl); | |
3843 | } | |
3844 | } | |
3845 | ||
3846 | error: | |
3847 | if (parentname) { | |
3848 | free(parentname); | |
3849 | } | |
3850 | if (zhrp) { | |
3851 | zfs_close(zhrp); | |
3852 | } | |
3853 | if (cl) { | |
3854 | changelist_free(cl); | |
3855 | } | |
3856 | return (ret); | |
3857 | } | |
3858 | ||
d603ed6c BB |
3859 | /* |
3860 | * Given a zvol dataset, issue the ioctl to create the appropriate minor node, | |
3861 | * and wait briefly for udev to create the /dev link. | |
3862 | */ | |
3863 | int | |
3864 | zvol_create_link(libzfs_handle_t *hdl, const char *dataset) | |
34dc7c2f | 3865 | { |
d603ed6c BB |
3866 | return (zvol_create_link_common(hdl, dataset, B_FALSE)); |
3867 | } | |
3868 | ||
3869 | static int | |
3870 | zvol_create_link_common(libzfs_handle_t *hdl, const char *dataset, int ifexists) | |
3871 | { | |
3872 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; | |
3873 | char path[MAXPATHLEN]; | |
3874 | int error; | |
3875 | ||
3876 | (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); | |
3877 | ||
3878 | /* | |
3879 | * Issue the appropriate ioctl. | |
3880 | */ | |
3881 | if (ioctl(hdl->libzfs_fd, ZFS_IOC_CREATE_MINOR, &zc) != 0) { | |
3882 | switch (errno) { | |
3883 | case EEXIST: | |
3884 | /* | |
3885 | * Silently ignore the case where the link already | |
3886 | * exists. This allows 'zfs volinit' to be run multiple | |
3887 | * times without errors. | |
3888 | */ | |
3889 | return (0); | |
3890 | ||
3891 | case ENOENT: | |
3892 | /* | |
3893 | * Dataset does not exist in the kernel. If we | |
3894 | * don't care (see zfs_rename), then ignore the | |
3895 | * error quietly. | |
3896 | */ | |
3897 | if (ifexists) { | |
3898 | return (0); | |
3899 | } | |
3900 | ||
3901 | /* FALLTHROUGH */ | |
3902 | ||
3903 | default: | |
3904 | return (zfs_standard_error_fmt(hdl, errno, | |
3905 | dgettext(TEXT_DOMAIN, "cannot create device links " | |
3906 | "for '%s'"), dataset)); | |
3907 | } | |
3908 | } | |
3909 | ||
3910 | /* | |
3911 | * Wait up to 10 seconds for udev to create the device. | |
3912 | */ | |
3913 | (void) snprintf(path, sizeof (path), "%s/%s", ZVOL_DIR, dataset); | |
3914 | error = zpool_label_disk_wait(path, 10000); | |
3915 | if (error) | |
3916 | (void) printf(gettext("%s may not be immediately " | |
3917 | "available\n"), path); | |
3918 | ||
3919 | return (0); | |
3920 | } | |
3921 | ||
3922 | /* | |
3923 | * Remove a minor node for the given zvol and the associated /dev links. | |
3924 | */ | |
3925 | int | |
3926 | zvol_remove_link(libzfs_handle_t *hdl, const char *dataset) | |
3927 | { | |
3928 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; | |
3929 | ||
3930 | (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); | |
3931 | ||
3932 | if (ioctl(hdl->libzfs_fd, ZFS_IOC_REMOVE_MINOR, &zc) != 0) { | |
3933 | switch (errno) { | |
3934 | case ENXIO: | |
3935 | /* | |
3936 | * Silently ignore the case where the link no longer | |
3937 | * exists, so that 'zfs volfini' can be run multiple | |
3938 | * times without errors. | |
3939 | */ | |
3940 | return (0); | |
3941 | ||
3942 | default: | |
3943 | return (zfs_standard_error_fmt(hdl, errno, | |
3944 | dgettext(TEXT_DOMAIN, "cannot remove device " | |
3945 | "links for '%s'"), dataset)); | |
3946 | } | |
3947 | } | |
3948 | ||
3949 | return (0); | |
34dc7c2f BB |
3950 | } |
3951 | ||
3952 | nvlist_t * | |
d603ed6c | 3953 | zfs_get_user_props(zfs_handle_t *zhp) |
34dc7c2f | 3954 | { |
d603ed6c | 3955 | return (zhp->zfs_user_props); |
34dc7c2f BB |
3956 | } |
3957 | ||
3958 | /* | |
3959 | * This function is used by 'zfs list' to determine the exact set of columns to | |
3960 | * display, and their maximum widths. This does two main things: | |
3961 | * | |
3962 | * - If this is a list of all properties, then expand the list to include | |
3963 | * all native properties, and set a flag so that for each dataset we look | |
3964 | * for new unique user properties and add them to the list. | |
3965 | * | |
3966 | * - For non fixed-width properties, keep track of the maximum width seen | |
428870ff BB |
3967 | * so that we can size the column appropriately. If the user has |
3968 | * requested received property values, we also need to compute the width | |
3969 | * of the RECEIVED column. | |
34dc7c2f BB |
3970 | */ |
3971 | int | |
428870ff | 3972 | zfs_expand_proplist(zfs_handle_t *zhp, zprop_list_t **plp, boolean_t received) |
34dc7c2f BB |
3973 | { |
3974 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
3975 | zprop_list_t *entry; | |
3976 | zprop_list_t **last, **start; | |
3977 | nvlist_t *userprops, *propval; | |
3978 | nvpair_t *elem; | |
3979 | char *strval; | |
3980 | char buf[ZFS_MAXPROPLEN]; | |
3981 | ||
3982 | if (zprop_expand_list(hdl, plp, ZFS_TYPE_DATASET) != 0) | |
3983 | return (-1); | |
3984 | ||
3985 | userprops = zfs_get_user_props(zhp); | |
3986 | ||
3987 | entry = *plp; | |
3988 | if (entry->pl_all && nvlist_next_nvpair(userprops, NULL) != NULL) { | |
3989 | /* | |
3990 | * Go through and add any user properties as necessary. We | |
3991 | * start by incrementing our list pointer to the first | |
3992 | * non-native property. | |
3993 | */ | |
3994 | start = plp; | |
3995 | while (*start != NULL) { | |
3996 | if ((*start)->pl_prop == ZPROP_INVAL) | |
3997 | break; | |
3998 | start = &(*start)->pl_next; | |
3999 | } | |
4000 | ||
4001 | elem = NULL; | |
4002 | while ((elem = nvlist_next_nvpair(userprops, elem)) != NULL) { | |
4003 | /* | |
4004 | * See if we've already found this property in our list. | |
4005 | */ | |
4006 | for (last = start; *last != NULL; | |
4007 | last = &(*last)->pl_next) { | |
4008 | if (strcmp((*last)->pl_user_prop, | |
4009 | nvpair_name(elem)) == 0) | |
4010 | break; | |
4011 | } | |
4012 | ||
4013 | if (*last == NULL) { | |
4014 | if ((entry = zfs_alloc(hdl, | |
4015 | sizeof (zprop_list_t))) == NULL || | |
4016 | ((entry->pl_user_prop = zfs_strdup(hdl, | |
4017 | nvpair_name(elem)))) == NULL) { | |
4018 | free(entry); | |
4019 | return (-1); | |
4020 | } | |
4021 | ||
4022 | entry->pl_prop = ZPROP_INVAL; | |
4023 | entry->pl_width = strlen(nvpair_name(elem)); | |
4024 | entry->pl_all = B_TRUE; | |
4025 | *last = entry; | |
4026 | } | |
4027 | } | |
4028 | } | |
4029 | ||
4030 | /* | |
4031 | * Now go through and check the width of any non-fixed columns | |
4032 | */ | |
4033 | for (entry = *plp; entry != NULL; entry = entry->pl_next) { | |
4034 | if (entry->pl_fixed) | |
4035 | continue; | |
4036 | ||
4037 | if (entry->pl_prop != ZPROP_INVAL) { | |
4038 | if (zfs_prop_get(zhp, entry->pl_prop, | |
4039 | buf, sizeof (buf), NULL, NULL, 0, B_FALSE) == 0) { | |
4040 | if (strlen(buf) > entry->pl_width) | |
4041 | entry->pl_width = strlen(buf); | |
4042 | } | |
428870ff BB |
4043 | if (received && zfs_prop_get_recvd(zhp, |
4044 | zfs_prop_to_name(entry->pl_prop), | |
4045 | buf, sizeof (buf), B_FALSE) == 0) | |
4046 | if (strlen(buf) > entry->pl_recvd_width) | |
4047 | entry->pl_recvd_width = strlen(buf); | |
4048 | } else { | |
4049 | if (nvlist_lookup_nvlist(userprops, entry->pl_user_prop, | |
4050 | &propval) == 0) { | |
4051 | verify(nvlist_lookup_string(propval, | |
4052 | ZPROP_VALUE, &strval) == 0); | |
4053 | if (strlen(strval) > entry->pl_width) | |
4054 | entry->pl_width = strlen(strval); | |
4055 | } | |
4056 | if (received && zfs_prop_get_recvd(zhp, | |
4057 | entry->pl_user_prop, | |
4058 | buf, sizeof (buf), B_FALSE) == 0) | |
4059 | if (strlen(buf) > entry->pl_recvd_width) | |
4060 | entry->pl_recvd_width = strlen(buf); | |
34dc7c2f BB |
4061 | } |
4062 | } | |
4063 | ||
4064 | return (0); | |
4065 | } | |
4066 | ||
9babb374 BB |
4067 | void |
4068 | zfs_prune_proplist(zfs_handle_t *zhp, uint8_t *props) | |
4069 | { | |
4070 | nvpair_t *curr; | |
4071 | ||
4072 | /* | |
4073 | * Keep a reference to the props-table against which we prune the | |
4074 | * properties. | |
4075 | */ | |
4076 | zhp->zfs_props_table = props; | |
4077 | ||
4078 | curr = nvlist_next_nvpair(zhp->zfs_props, NULL); | |
4079 | ||
4080 | while (curr) { | |
4081 | zfs_prop_t zfs_prop = zfs_name_to_prop(nvpair_name(curr)); | |
4082 | nvpair_t *next = nvlist_next_nvpair(zhp->zfs_props, curr); | |
4083 | ||
4084 | /* | |
428870ff BB |
4085 | * User properties will result in ZPROP_INVAL, and since we |
4086 | * only know how to prune standard ZFS properties, we always | |
4087 | * leave these in the list. This can also happen if we | |
4088 | * encounter an unknown DSL property (when running older | |
4089 | * software, for example). | |
9babb374 BB |
4090 | */ |
4091 | if (zfs_prop != ZPROP_INVAL && props[zfs_prop] == B_FALSE) | |
4092 | (void) nvlist_remove(zhp->zfs_props, | |
4093 | nvpair_name(curr), nvpair_type(curr)); | |
4094 | curr = next; | |
4095 | } | |
4096 | } | |
4097 | ||
4098 | static int | |
4099 | zfs_smb_acl_mgmt(libzfs_handle_t *hdl, char *dataset, char *path, | |
4100 | zfs_smb_acl_op_t cmd, char *resource1, char *resource2) | |
4101 | { | |
2598c001 | 4102 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
9babb374 BB |
4103 | nvlist_t *nvlist = NULL; |
4104 | int error; | |
4105 | ||
4106 | (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); | |
4107 | (void) strlcpy(zc.zc_value, path, sizeof (zc.zc_value)); | |
4108 | zc.zc_cookie = (uint64_t)cmd; | |
4109 | ||
4110 | if (cmd == ZFS_SMB_ACL_RENAME) { | |
4111 | if (nvlist_alloc(&nvlist, NV_UNIQUE_NAME, 0) != 0) { | |
4112 | (void) no_memory(hdl); | |
a6098088 | 4113 | return (-1); |
9babb374 BB |
4114 | } |
4115 | } | |
4116 | ||
4117 | switch (cmd) { | |
4118 | case ZFS_SMB_ACL_ADD: | |
4119 | case ZFS_SMB_ACL_REMOVE: | |
4120 | (void) strlcpy(zc.zc_string, resource1, sizeof (zc.zc_string)); | |
4121 | break; | |
4122 | case ZFS_SMB_ACL_RENAME: | |
4123 | if (nvlist_add_string(nvlist, ZFS_SMB_ACL_SRC, | |
4124 | resource1) != 0) { | |
4125 | (void) no_memory(hdl); | |
4126 | return (-1); | |
4127 | } | |
4128 | if (nvlist_add_string(nvlist, ZFS_SMB_ACL_TARGET, | |
4129 | resource2) != 0) { | |
4130 | (void) no_memory(hdl); | |
4131 | return (-1); | |
4132 | } | |
4133 | if (zcmd_write_src_nvlist(hdl, &zc, nvlist) != 0) { | |
4134 | nvlist_free(nvlist); | |
4135 | return (-1); | |
4136 | } | |
4137 | break; | |
4138 | case ZFS_SMB_ACL_PURGE: | |
4139 | break; | |
4140 | default: | |
4141 | return (-1); | |
4142 | } | |
4143 | error = ioctl(hdl->libzfs_fd, ZFS_IOC_SMB_ACL, &zc); | |
4144 | if (nvlist) | |
4145 | nvlist_free(nvlist); | |
4146 | return (error); | |
4147 | } | |
4148 | ||
4149 | int | |
4150 | zfs_smb_acl_add(libzfs_handle_t *hdl, char *dataset, | |
4151 | char *path, char *resource) | |
4152 | { | |
4153 | return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_ADD, | |
4154 | resource, NULL)); | |
4155 | } | |
4156 | ||
4157 | int | |
4158 | zfs_smb_acl_remove(libzfs_handle_t *hdl, char *dataset, | |
4159 | char *path, char *resource) | |
4160 | { | |
4161 | return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_REMOVE, | |
4162 | resource, NULL)); | |
4163 | } | |
4164 | ||
4165 | int | |
4166 | zfs_smb_acl_purge(libzfs_handle_t *hdl, char *dataset, char *path) | |
4167 | { | |
4168 | return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_PURGE, | |
4169 | NULL, NULL)); | |
4170 | } | |
4171 | ||
4172 | int | |
4173 | zfs_smb_acl_rename(libzfs_handle_t *hdl, char *dataset, char *path, | |
4174 | char *oldname, char *newname) | |
4175 | { | |
4176 | return (zfs_smb_acl_mgmt(hdl, dataset, path, ZFS_SMB_ACL_RENAME, | |
4177 | oldname, newname)); | |
4178 | } | |
4179 | ||
4180 | int | |
4181 | zfs_userspace(zfs_handle_t *zhp, zfs_userquota_prop_t type, | |
4182 | zfs_userspace_cb_t func, void *arg) | |
4183 | { | |
2598c001 | 4184 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
9babb374 BB |
4185 | int error; |
4186 | zfs_useracct_t buf[100]; | |
4187 | ||
4188 | (void) strncpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
4189 | ||
4190 | zc.zc_objset_type = type; | |
4191 | zc.zc_nvlist_dst = (uintptr_t)buf; | |
4192 | ||
4193 | /* CONSTCOND */ | |
4194 | while (1) { | |
4195 | zfs_useracct_t *zua = buf; | |
4196 | ||
4197 | zc.zc_nvlist_dst_size = sizeof (buf); | |
4198 | error = ioctl(zhp->zfs_hdl->libzfs_fd, | |
4199 | ZFS_IOC_USERSPACE_MANY, &zc); | |
4200 | if (error || zc.zc_nvlist_dst_size == 0) | |
4201 | break; | |
4202 | ||
4203 | while (zc.zc_nvlist_dst_size > 0) { | |
4204 | error = func(arg, zua->zu_domain, zua->zu_rid, | |
4205 | zua->zu_space); | |
4206 | if (error != 0) | |
4207 | return (error); | |
4208 | zua++; | |
4209 | zc.zc_nvlist_dst_size -= sizeof (zfs_useracct_t); | |
4210 | } | |
4211 | } | |
4212 | ||
4213 | return (error); | |
4214 | } | |
45d1cae3 BB |
4215 | |
4216 | int | |
4217 | zfs_hold(zfs_handle_t *zhp, const char *snapname, const char *tag, | |
572e2857 BB |
4218 | boolean_t recursive, boolean_t temphold, boolean_t enoent_ok, |
4219 | int cleanup_fd, uint64_t dsobj, uint64_t createtxg) | |
45d1cae3 | 4220 | { |
2598c001 | 4221 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
45d1cae3 BB |
4222 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
4223 | ||
572e2857 BB |
4224 | ASSERT(!recursive || dsobj == 0); |
4225 | ||
45d1cae3 BB |
4226 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); |
4227 | (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); | |
428870ff BB |
4228 | if (strlcpy(zc.zc_string, tag, sizeof (zc.zc_string)) |
4229 | >= sizeof (zc.zc_string)) | |
4230 | return (zfs_error(hdl, EZFS_TAGTOOLONG, tag)); | |
45d1cae3 | 4231 | zc.zc_cookie = recursive; |
428870ff | 4232 | zc.zc_temphold = temphold; |
572e2857 BB |
4233 | zc.zc_cleanup_fd = cleanup_fd; |
4234 | zc.zc_sendobj = dsobj; | |
4235 | zc.zc_createtxg = createtxg; | |
45d1cae3 BB |
4236 | |
4237 | if (zfs_ioctl(hdl, ZFS_IOC_HOLD, &zc) != 0) { | |
4238 | char errbuf[ZFS_MAXNAMELEN+32]; | |
4239 | ||
4240 | /* | |
4241 | * if it was recursive, the one that actually failed will be in | |
4242 | * zc.zc_name. | |
4243 | */ | |
4244 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
4245 | "cannot hold '%s@%s'"), zc.zc_name, snapname); | |
4246 | switch (errno) { | |
428870ff BB |
4247 | case E2BIG: |
4248 | /* | |
4249 | * Temporary tags wind up having the ds object id | |
4250 | * prepended. So even if we passed the length check | |
4251 | * above, it's still possible for the tag to wind | |
4252 | * up being slightly too long. | |
4253 | */ | |
4254 | return (zfs_error(hdl, EZFS_TAGTOOLONG, errbuf)); | |
45d1cae3 BB |
4255 | case ENOTSUP: |
4256 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4257 | "pool must be upgraded")); | |
4258 | return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); | |
4259 | case EINVAL: | |
4260 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
4261 | case EEXIST: | |
4262 | return (zfs_error(hdl, EZFS_REFTAG_HOLD, errbuf)); | |
428870ff BB |
4263 | case ENOENT: |
4264 | if (enoent_ok) | |
572e2857 | 4265 | return (ENOENT); |
428870ff | 4266 | /* FALLTHROUGH */ |
45d1cae3 BB |
4267 | default: |
4268 | return (zfs_standard_error_fmt(hdl, errno, errbuf)); | |
4269 | } | |
4270 | } | |
4271 | ||
4272 | return (0); | |
4273 | } | |
4274 | ||
4275 | int | |
4276 | zfs_release(zfs_handle_t *zhp, const char *snapname, const char *tag, | |
4277 | boolean_t recursive) | |
4278 | { | |
2598c001 | 4279 | zfs_cmd_t zc = { "\0", "\0", "\0", "\0", 0 }; |
45d1cae3 BB |
4280 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
4281 | ||
4282 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
4283 | (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); | |
428870ff BB |
4284 | if (strlcpy(zc.zc_string, tag, sizeof (zc.zc_string)) |
4285 | >= sizeof (zc.zc_string)) | |
4286 | return (zfs_error(hdl, EZFS_TAGTOOLONG, tag)); | |
45d1cae3 BB |
4287 | zc.zc_cookie = recursive; |
4288 | ||
4289 | if (zfs_ioctl(hdl, ZFS_IOC_RELEASE, &zc) != 0) { | |
4290 | char errbuf[ZFS_MAXNAMELEN+32]; | |
4291 | ||
4292 | /* | |
4293 | * if it was recursive, the one that actually failed will be in | |
4294 | * zc.zc_name. | |
4295 | */ | |
4296 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
428870ff BB |
4297 | "cannot release '%s' from '%s@%s'"), tag, zc.zc_name, |
4298 | snapname); | |
45d1cae3 BB |
4299 | switch (errno) { |
4300 | case ESRCH: | |
4301 | return (zfs_error(hdl, EZFS_REFTAG_RELE, errbuf)); | |
4302 | case ENOTSUP: | |
4303 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4304 | "pool must be upgraded")); | |
4305 | return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); | |
4306 | case EINVAL: | |
4307 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
4308 | default: | |
4309 | return (zfs_standard_error_fmt(hdl, errno, errbuf)); | |
4310 | } | |
4311 | } | |
4312 | ||
4313 | return (0); | |
4314 | } | |
428870ff | 4315 | |
428870ff BB |
4316 | uint64_t |
4317 | zvol_volsize_to_reservation(uint64_t volsize, nvlist_t *props) | |
4318 | { | |
4319 | uint64_t numdb; | |
4320 | uint64_t nblocks, volblocksize; | |
4321 | int ncopies; | |
4322 | char *strval; | |
4323 | ||
4324 | if (nvlist_lookup_string(props, | |
4325 | zfs_prop_to_name(ZFS_PROP_COPIES), &strval) == 0) | |
4326 | ncopies = atoi(strval); | |
4327 | else | |
4328 | ncopies = 1; | |
4329 | if (nvlist_lookup_uint64(props, | |
4330 | zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
4331 | &volblocksize) != 0) | |
4332 | volblocksize = ZVOL_DEFAULT_BLOCKSIZE; | |
4333 | nblocks = volsize/volblocksize; | |
4334 | /* start with metadnode L0-L6 */ | |
4335 | numdb = 7; | |
4336 | /* calculate number of indirects */ | |
4337 | while (nblocks > 1) { | |
4338 | nblocks += DNODES_PER_LEVEL - 1; | |
4339 | nblocks /= DNODES_PER_LEVEL; | |
4340 | numdb += nblocks; | |
4341 | } | |
4342 | numdb *= MIN(SPA_DVAS_PER_BP, ncopies + 1); | |
4343 | volsize *= ncopies; | |
4344 | /* | |
4345 | * this is exactly DN_MAX_INDBLKSHIFT when metadata isn't | |
4346 | * compressed, but in practice they compress down to about | |
4347 | * 1100 bytes | |
4348 | */ | |
4349 | numdb *= 1ULL << DN_MAX_INDBLKSHIFT; | |
4350 | volsize += numdb; | |
4351 | return (volsize); | |
4352 | } |