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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 | /* | |
428870ff | 22 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
34dc7c2f BB |
23 | */ |
24 | ||
34dc7c2f BB |
25 | #include <sys/types.h> |
26 | #include <sys/param.h> | |
27 | #include <sys/errno.h> | |
28 | #include <sys/uio.h> | |
29 | #include <sys/buf.h> | |
30 | #include <sys/modctl.h> | |
31 | #include <sys/open.h> | |
32 | #include <sys/file.h> | |
33 | #include <sys/kmem.h> | |
34 | #include <sys/conf.h> | |
35 | #include <sys/cmn_err.h> | |
36 | #include <sys/stat.h> | |
37 | #include <sys/zfs_ioctl.h> | |
428870ff | 38 | #include <sys/zfs_vfsops.h> |
34dc7c2f BB |
39 | #include <sys/zfs_znode.h> |
40 | #include <sys/zap.h> | |
41 | #include <sys/spa.h> | |
42 | #include <sys/spa_impl.h> | |
43 | #include <sys/vdev.h> | |
428870ff | 44 | #include <sys/priv_impl.h> |
34dc7c2f BB |
45 | #include <sys/dmu.h> |
46 | #include <sys/dsl_dir.h> | |
47 | #include <sys/dsl_dataset.h> | |
48 | #include <sys/dsl_prop.h> | |
49 | #include <sys/dsl_deleg.h> | |
50 | #include <sys/dmu_objset.h> | |
51 | #include <sys/ddi.h> | |
52 | #include <sys/sunddi.h> | |
53 | #include <sys/sunldi.h> | |
54 | #include <sys/policy.h> | |
55 | #include <sys/zone.h> | |
56 | #include <sys/nvpair.h> | |
57 | #include <sys/pathname.h> | |
58 | #include <sys/mount.h> | |
59 | #include <sys/sdt.h> | |
60 | #include <sys/fs/zfs.h> | |
61 | #include <sys/zfs_ctldir.h> | |
62 | #include <sys/zfs_dir.h> | |
572e2857 | 63 | #include <sys/zfs_onexit.h> |
34dc7c2f | 64 | #include <sys/zvol.h> |
428870ff | 65 | #include <sys/dsl_scan.h> |
34dc7c2f BB |
66 | #include <sharefs/share.h> |
67 | #include <sys/dmu_objset.h> | |
68 | ||
69 | #include "zfs_namecheck.h" | |
70 | #include "zfs_prop.h" | |
71 | #include "zfs_deleg.h" | |
428870ff | 72 | #include "zfs_comutil.h" |
34dc7c2f BB |
73 | |
74 | extern struct modlfs zfs_modlfs; | |
75 | ||
76 | extern void zfs_init(void); | |
77 | extern void zfs_fini(void); | |
78 | ||
79 | ldi_ident_t zfs_li = NULL; | |
80 | dev_info_t *zfs_dip; | |
81 | ||
82 | typedef int zfs_ioc_func_t(zfs_cmd_t *); | |
83 | typedef int zfs_secpolicy_func_t(zfs_cmd_t *, cred_t *); | |
84 | ||
9babb374 BB |
85 | typedef enum { |
86 | NO_NAME, | |
87 | POOL_NAME, | |
88 | DATASET_NAME | |
89 | } zfs_ioc_namecheck_t; | |
90 | ||
572e2857 BB |
91 | typedef enum { |
92 | POOL_CHECK_NONE = 1 << 0, | |
93 | POOL_CHECK_SUSPENDED = 1 << 1, | |
94 | POOL_CHECK_READONLY = 1 << 2 | |
95 | } zfs_ioc_poolcheck_t; | |
96 | ||
34dc7c2f BB |
97 | typedef struct zfs_ioc_vec { |
98 | zfs_ioc_func_t *zvec_func; | |
99 | zfs_secpolicy_func_t *zvec_secpolicy; | |
9babb374 | 100 | zfs_ioc_namecheck_t zvec_namecheck; |
34dc7c2f | 101 | boolean_t zvec_his_log; |
572e2857 | 102 | zfs_ioc_poolcheck_t zvec_pool_check; |
34dc7c2f BB |
103 | } zfs_ioc_vec_t; |
104 | ||
9babb374 BB |
105 | /* This array is indexed by zfs_userquota_prop_t */ |
106 | static const char *userquota_perms[] = { | |
107 | ZFS_DELEG_PERM_USERUSED, | |
108 | ZFS_DELEG_PERM_USERQUOTA, | |
109 | ZFS_DELEG_PERM_GROUPUSED, | |
110 | ZFS_DELEG_PERM_GROUPQUOTA, | |
111 | }; | |
112 | ||
113 | static int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc); | |
428870ff BB |
114 | static int zfs_check_settable(const char *name, nvpair_t *property, |
115 | cred_t *cr); | |
116 | static int zfs_check_clearable(char *dataset, nvlist_t *props, | |
117 | nvlist_t **errors); | |
b128c09f BB |
118 | static int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *, |
119 | boolean_t *); | |
428870ff | 120 | int zfs_set_prop_nvlist(const char *, zprop_source_t, nvlist_t *, nvlist_t **); |
b128c09f | 121 | |
34dc7c2f BB |
122 | /* _NOTE(PRINTFLIKE(4)) - this is printf-like, but lint is too whiney */ |
123 | void | |
124 | __dprintf(const char *file, const char *func, int line, const char *fmt, ...) | |
125 | { | |
126 | const char *newfile; | |
428870ff | 127 | char buf[512]; |
34dc7c2f BB |
128 | va_list adx; |
129 | ||
130 | /* | |
131 | * Get rid of annoying "../common/" prefix to filename. | |
132 | */ | |
133 | newfile = strrchr(file, '/'); | |
134 | if (newfile != NULL) { | |
135 | newfile = newfile + 1; /* Get rid of leading / */ | |
136 | } else { | |
137 | newfile = file; | |
138 | } | |
139 | ||
140 | va_start(adx, fmt); | |
141 | (void) vsnprintf(buf, sizeof (buf), fmt, adx); | |
142 | va_end(adx); | |
143 | ||
144 | /* | |
145 | * To get this data, use the zfs-dprintf probe as so: | |
146 | * dtrace -q -n 'zfs-dprintf \ | |
147 | * /stringof(arg0) == "dbuf.c"/ \ | |
148 | * {printf("%s: %s", stringof(arg1), stringof(arg3))}' | |
149 | * arg0 = file name | |
150 | * arg1 = function name | |
151 | * arg2 = line number | |
152 | * arg3 = message | |
153 | */ | |
154 | DTRACE_PROBE4(zfs__dprintf, | |
155 | char *, newfile, char *, func, int, line, char *, buf); | |
156 | } | |
157 | ||
158 | static void | |
159 | history_str_free(char *buf) | |
160 | { | |
161 | kmem_free(buf, HIS_MAX_RECORD_LEN); | |
162 | } | |
163 | ||
164 | static char * | |
165 | history_str_get(zfs_cmd_t *zc) | |
166 | { | |
167 | char *buf; | |
168 | ||
169 | if (zc->zc_history == NULL) | |
170 | return (NULL); | |
171 | ||
172 | buf = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP); | |
173 | if (copyinstr((void *)(uintptr_t)zc->zc_history, | |
174 | buf, HIS_MAX_RECORD_LEN, NULL) != 0) { | |
175 | history_str_free(buf); | |
176 | return (NULL); | |
177 | } | |
178 | ||
179 | buf[HIS_MAX_RECORD_LEN -1] = '\0'; | |
180 | ||
181 | return (buf); | |
182 | } | |
183 | ||
184 | /* | |
b128c09f BB |
185 | * Check to see if the named dataset is currently defined as bootable |
186 | */ | |
187 | static boolean_t | |
188 | zfs_is_bootfs(const char *name) | |
189 | { | |
428870ff | 190 | objset_t *os; |
b128c09f | 191 | |
428870ff BB |
192 | if (dmu_objset_hold(name, FTAG, &os) == 0) { |
193 | boolean_t ret; | |
194 | ret = (dmu_objset_id(os) == spa_bootfs(dmu_objset_spa(os))); | |
195 | dmu_objset_rele(os, FTAG); | |
196 | return (ret); | |
b128c09f | 197 | } |
428870ff | 198 | return (B_FALSE); |
b128c09f BB |
199 | } |
200 | ||
201 | /* | |
202 | * zfs_earlier_version | |
34dc7c2f BB |
203 | * |
204 | * Return non-zero if the spa version is less than requested version. | |
205 | */ | |
206 | static int | |
b128c09f | 207 | zfs_earlier_version(const char *name, int version) |
34dc7c2f | 208 | { |
34dc7c2f BB |
209 | spa_t *spa; |
210 | ||
211 | if (spa_open(name, &spa, FTAG) == 0) { | |
212 | if (spa_version(spa) < version) { | |
213 | spa_close(spa, FTAG); | |
214 | return (1); | |
215 | } | |
216 | spa_close(spa, FTAG); | |
217 | } | |
218 | return (0); | |
219 | } | |
220 | ||
221 | /* | |
b128c09f | 222 | * zpl_earlier_version |
34dc7c2f | 223 | * |
b128c09f | 224 | * Return TRUE if the ZPL version is less than requested version. |
34dc7c2f | 225 | */ |
b128c09f BB |
226 | static boolean_t |
227 | zpl_earlier_version(const char *name, int version) | |
34dc7c2f BB |
228 | { |
229 | objset_t *os; | |
b128c09f | 230 | boolean_t rc = B_TRUE; |
34dc7c2f | 231 | |
428870ff | 232 | if (dmu_objset_hold(name, FTAG, &os) == 0) { |
b128c09f | 233 | uint64_t zplversion; |
34dc7c2f | 234 | |
428870ff BB |
235 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
236 | dmu_objset_rele(os, FTAG); | |
237 | return (B_TRUE); | |
238 | } | |
239 | /* XXX reading from non-owned objset */ | |
b128c09f BB |
240 | if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0) |
241 | rc = zplversion < version; | |
428870ff | 242 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
243 | } |
244 | return (rc); | |
245 | } | |
246 | ||
247 | static void | |
248 | zfs_log_history(zfs_cmd_t *zc) | |
249 | { | |
250 | spa_t *spa; | |
251 | char *buf; | |
252 | ||
253 | if ((buf = history_str_get(zc)) == NULL) | |
254 | return; | |
255 | ||
256 | if (spa_open(zc->zc_name, &spa, FTAG) == 0) { | |
257 | if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY) | |
258 | (void) spa_history_log(spa, buf, LOG_CMD_NORMAL); | |
259 | spa_close(spa, FTAG); | |
260 | } | |
261 | history_str_free(buf); | |
262 | } | |
263 | ||
264 | /* | |
265 | * Policy for top-level read operations (list pools). Requires no privileges, | |
266 | * and can be used in the local zone, as there is no associated dataset. | |
267 | */ | |
268 | /* ARGSUSED */ | |
269 | static int | |
270 | zfs_secpolicy_none(zfs_cmd_t *zc, cred_t *cr) | |
271 | { | |
272 | return (0); | |
273 | } | |
274 | ||
275 | /* | |
276 | * Policy for dataset read operations (list children, get statistics). Requires | |
277 | * no privileges, but must be visible in the local zone. | |
278 | */ | |
279 | /* ARGSUSED */ | |
280 | static int | |
281 | zfs_secpolicy_read(zfs_cmd_t *zc, cred_t *cr) | |
282 | { | |
283 | if (INGLOBALZONE(curproc) || | |
284 | zone_dataset_visible(zc->zc_name, NULL)) | |
285 | return (0); | |
286 | ||
287 | return (ENOENT); | |
288 | } | |
289 | ||
290 | static int | |
572e2857 | 291 | zfs_dozonecheck_impl(const char *dataset, uint64_t zoned, cred_t *cr) |
34dc7c2f | 292 | { |
34dc7c2f BB |
293 | int writable = 1; |
294 | ||
295 | /* | |
296 | * The dataset must be visible by this zone -- check this first | |
297 | * so they don't see EPERM on something they shouldn't know about. | |
298 | */ | |
299 | if (!INGLOBALZONE(curproc) && | |
300 | !zone_dataset_visible(dataset, &writable)) | |
301 | return (ENOENT); | |
302 | ||
34dc7c2f BB |
303 | if (INGLOBALZONE(curproc)) { |
304 | /* | |
305 | * If the fs is zoned, only root can access it from the | |
306 | * global zone. | |
307 | */ | |
308 | if (secpolicy_zfs(cr) && zoned) | |
309 | return (EPERM); | |
310 | } else { | |
311 | /* | |
312 | * If we are in a local zone, the 'zoned' property must be set. | |
313 | */ | |
314 | if (!zoned) | |
315 | return (EPERM); | |
316 | ||
317 | /* must be writable by this zone */ | |
318 | if (!writable) | |
319 | return (EPERM); | |
320 | } | |
321 | return (0); | |
322 | } | |
323 | ||
572e2857 BB |
324 | static int |
325 | zfs_dozonecheck(const char *dataset, cred_t *cr) | |
326 | { | |
327 | uint64_t zoned; | |
328 | ||
329 | if (dsl_prop_get_integer(dataset, "zoned", &zoned, NULL)) | |
330 | return (ENOENT); | |
331 | ||
332 | return (zfs_dozonecheck_impl(dataset, zoned, cr)); | |
333 | } | |
334 | ||
335 | static int | |
336 | zfs_dozonecheck_ds(const char *dataset, dsl_dataset_t *ds, cred_t *cr) | |
337 | { | |
338 | uint64_t zoned; | |
339 | ||
340 | rw_enter(&ds->ds_dir->dd_pool->dp_config_rwlock, RW_READER); | |
341 | if (dsl_prop_get_ds(ds, "zoned", 8, 1, &zoned, NULL)) { | |
342 | rw_exit(&ds->ds_dir->dd_pool->dp_config_rwlock); | |
343 | return (ENOENT); | |
344 | } | |
345 | rw_exit(&ds->ds_dir->dd_pool->dp_config_rwlock); | |
346 | ||
347 | return (zfs_dozonecheck_impl(dataset, zoned, cr)); | |
348 | } | |
349 | ||
34dc7c2f BB |
350 | int |
351 | zfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr) | |
352 | { | |
353 | int error; | |
354 | ||
355 | error = zfs_dozonecheck(name, cr); | |
356 | if (error == 0) { | |
357 | error = secpolicy_zfs(cr); | |
358 | if (error) | |
359 | error = dsl_deleg_access(name, perm, cr); | |
360 | } | |
361 | return (error); | |
362 | } | |
363 | ||
572e2857 BB |
364 | int |
365 | zfs_secpolicy_write_perms_ds(const char *name, dsl_dataset_t *ds, | |
366 | const char *perm, cred_t *cr) | |
367 | { | |
368 | int error; | |
369 | ||
370 | error = zfs_dozonecheck_ds(name, ds, cr); | |
371 | if (error == 0) { | |
372 | error = secpolicy_zfs(cr); | |
373 | if (error) | |
374 | error = dsl_deleg_access_impl(ds, perm, cr); | |
375 | } | |
376 | return (error); | |
377 | } | |
378 | ||
428870ff BB |
379 | /* |
380 | * Policy for setting the security label property. | |
381 | * | |
382 | * Returns 0 for success, non-zero for access and other errors. | |
383 | */ | |
34dc7c2f | 384 | static int |
428870ff | 385 | zfs_set_slabel_policy(const char *name, char *strval, cred_t *cr) |
34dc7c2f | 386 | { |
428870ff BB |
387 | char ds_hexsl[MAXNAMELEN]; |
388 | bslabel_t ds_sl, new_sl; | |
389 | boolean_t new_default = FALSE; | |
390 | uint64_t zoned; | |
391 | int needed_priv = -1; | |
392 | int error; | |
393 | ||
394 | /* First get the existing dataset label. */ | |
395 | error = dsl_prop_get(name, zfs_prop_to_name(ZFS_PROP_MLSLABEL), | |
396 | 1, sizeof (ds_hexsl), &ds_hexsl, NULL); | |
397 | if (error) | |
398 | return (EPERM); | |
399 | ||
400 | if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) | |
401 | new_default = TRUE; | |
402 | ||
403 | /* The label must be translatable */ | |
404 | if (!new_default && (hexstr_to_label(strval, &new_sl) != 0)) | |
405 | return (EINVAL); | |
406 | ||
407 | /* | |
408 | * In a non-global zone, disallow attempts to set a label that | |
409 | * doesn't match that of the zone; otherwise no other checks | |
410 | * are needed. | |
411 | */ | |
412 | if (!INGLOBALZONE(curproc)) { | |
413 | if (new_default || !blequal(&new_sl, CR_SL(CRED()))) | |
414 | return (EPERM); | |
415 | return (0); | |
416 | } | |
417 | ||
418 | /* | |
419 | * For global-zone datasets (i.e., those whose zoned property is | |
420 | * "off", verify that the specified new label is valid for the | |
421 | * global zone. | |
422 | */ | |
423 | if (dsl_prop_get_integer(name, | |
424 | zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL)) | |
425 | return (EPERM); | |
426 | if (!zoned) { | |
427 | if (zfs_check_global_label(name, strval) != 0) | |
428 | return (EPERM); | |
429 | } | |
430 | ||
431 | /* | |
432 | * If the existing dataset label is nondefault, check if the | |
433 | * dataset is mounted (label cannot be changed while mounted). | |
434 | * Get the zfsvfs; if there isn't one, then the dataset isn't | |
435 | * mounted (or isn't a dataset, doesn't exist, ...). | |
436 | */ | |
437 | if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) != 0) { | |
438 | objset_t *os; | |
439 | static char *setsl_tag = "setsl_tag"; | |
440 | ||
441 | /* | |
442 | * Try to own the dataset; abort if there is any error, | |
443 | * (e.g., already mounted, in use, or other error). | |
444 | */ | |
445 | error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE, | |
446 | setsl_tag, &os); | |
447 | if (error) | |
448 | return (EPERM); | |
449 | ||
450 | dmu_objset_disown(os, setsl_tag); | |
451 | ||
452 | if (new_default) { | |
453 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
454 | goto out_check; | |
455 | } | |
456 | ||
457 | if (hexstr_to_label(strval, &new_sl) != 0) | |
458 | return (EPERM); | |
459 | ||
460 | if (blstrictdom(&ds_sl, &new_sl)) | |
461 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
462 | else if (blstrictdom(&new_sl, &ds_sl)) | |
463 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
464 | } else { | |
465 | /* dataset currently has a default label */ | |
466 | if (!new_default) | |
467 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
468 | } | |
469 | ||
470 | out_check: | |
471 | if (needed_priv != -1) | |
472 | return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL)); | |
473 | return (0); | |
474 | } | |
475 | ||
476 | static int | |
477 | zfs_secpolicy_setprop(const char *dsname, zfs_prop_t prop, nvpair_t *propval, | |
478 | cred_t *cr) | |
479 | { | |
480 | char *strval; | |
481 | ||
34dc7c2f BB |
482 | /* |
483 | * Check permissions for special properties. | |
484 | */ | |
485 | switch (prop) { | |
486 | case ZFS_PROP_ZONED: | |
487 | /* | |
488 | * Disallow setting of 'zoned' from within a local zone. | |
489 | */ | |
490 | if (!INGLOBALZONE(curproc)) | |
491 | return (EPERM); | |
492 | break; | |
493 | ||
494 | case ZFS_PROP_QUOTA: | |
495 | if (!INGLOBALZONE(curproc)) { | |
496 | uint64_t zoned; | |
497 | char setpoint[MAXNAMELEN]; | |
498 | /* | |
499 | * Unprivileged users are allowed to modify the | |
500 | * quota on things *under* (ie. contained by) | |
501 | * the thing they own. | |
502 | */ | |
428870ff | 503 | if (dsl_prop_get_integer(dsname, "zoned", &zoned, |
34dc7c2f BB |
504 | setpoint)) |
505 | return (EPERM); | |
428870ff | 506 | if (!zoned || strlen(dsname) <= strlen(setpoint)) |
34dc7c2f BB |
507 | return (EPERM); |
508 | } | |
509 | break; | |
428870ff BB |
510 | |
511 | case ZFS_PROP_MLSLABEL: | |
512 | if (!is_system_labeled()) | |
513 | return (EPERM); | |
514 | ||
515 | if (nvpair_value_string(propval, &strval) == 0) { | |
516 | int err; | |
517 | ||
518 | err = zfs_set_slabel_policy(dsname, strval, CRED()); | |
519 | if (err != 0) | |
520 | return (err); | |
521 | } | |
522 | break; | |
34dc7c2f BB |
523 | } |
524 | ||
428870ff | 525 | return (zfs_secpolicy_write_perms(dsname, zfs_prop_to_name(prop), cr)); |
34dc7c2f BB |
526 | } |
527 | ||
528 | int | |
529 | zfs_secpolicy_fsacl(zfs_cmd_t *zc, cred_t *cr) | |
530 | { | |
531 | int error; | |
532 | ||
533 | error = zfs_dozonecheck(zc->zc_name, cr); | |
534 | if (error) | |
535 | return (error); | |
536 | ||
537 | /* | |
538 | * permission to set permissions will be evaluated later in | |
539 | * dsl_deleg_can_allow() | |
540 | */ | |
541 | return (0); | |
542 | } | |
543 | ||
544 | int | |
545 | zfs_secpolicy_rollback(zfs_cmd_t *zc, cred_t *cr) | |
546 | { | |
428870ff BB |
547 | return (zfs_secpolicy_write_perms(zc->zc_name, |
548 | ZFS_DELEG_PERM_ROLLBACK, cr)); | |
34dc7c2f BB |
549 | } |
550 | ||
551 | int | |
552 | zfs_secpolicy_send(zfs_cmd_t *zc, cred_t *cr) | |
553 | { | |
572e2857 BB |
554 | spa_t *spa; |
555 | dsl_pool_t *dp; | |
556 | dsl_dataset_t *ds; | |
557 | char *cp; | |
558 | int error; | |
559 | ||
560 | /* | |
561 | * Generate the current snapshot name from the given objsetid, then | |
562 | * use that name for the secpolicy/zone checks. | |
563 | */ | |
564 | cp = strchr(zc->zc_name, '@'); | |
565 | if (cp == NULL) | |
566 | return (EINVAL); | |
567 | error = spa_open(zc->zc_name, &spa, FTAG); | |
568 | if (error) | |
569 | return (error); | |
570 | ||
571 | dp = spa_get_dsl(spa); | |
572 | rw_enter(&dp->dp_config_rwlock, RW_READER); | |
573 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds); | |
574 | rw_exit(&dp->dp_config_rwlock); | |
575 | spa_close(spa, FTAG); | |
576 | if (error) | |
577 | return (error); | |
578 | ||
579 | dsl_dataset_name(ds, zc->zc_name); | |
580 | ||
581 | error = zfs_secpolicy_write_perms_ds(zc->zc_name, ds, | |
582 | ZFS_DELEG_PERM_SEND, cr); | |
583 | dsl_dataset_rele(ds, FTAG); | |
584 | ||
585 | return (error); | |
34dc7c2f BB |
586 | } |
587 | ||
9babb374 BB |
588 | static int |
589 | zfs_secpolicy_deleg_share(zfs_cmd_t *zc, cred_t *cr) | |
590 | { | |
591 | vnode_t *vp; | |
592 | int error; | |
593 | ||
594 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
595 | NO_FOLLOW, NULL, &vp)) != 0) | |
596 | return (error); | |
597 | ||
598 | /* Now make sure mntpnt and dataset are ZFS */ | |
599 | ||
600 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
601 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
602 | zc->zc_name) != 0)) { | |
603 | VN_RELE(vp); | |
604 | return (EPERM); | |
605 | } | |
606 | ||
607 | VN_RELE(vp); | |
608 | return (dsl_deleg_access(zc->zc_name, | |
609 | ZFS_DELEG_PERM_SHARE, cr)); | |
610 | } | |
611 | ||
34dc7c2f BB |
612 | int |
613 | zfs_secpolicy_share(zfs_cmd_t *zc, cred_t *cr) | |
614 | { | |
615 | if (!INGLOBALZONE(curproc)) | |
616 | return (EPERM); | |
617 | ||
618 | if (secpolicy_nfs(cr) == 0) { | |
619 | return (0); | |
620 | } else { | |
9babb374 BB |
621 | return (zfs_secpolicy_deleg_share(zc, cr)); |
622 | } | |
623 | } | |
34dc7c2f | 624 | |
9babb374 BB |
625 | int |
626 | zfs_secpolicy_smb_acl(zfs_cmd_t *zc, cred_t *cr) | |
627 | { | |
628 | if (!INGLOBALZONE(curproc)) | |
629 | return (EPERM); | |
34dc7c2f | 630 | |
9babb374 BB |
631 | if (secpolicy_smb(cr) == 0) { |
632 | return (0); | |
633 | } else { | |
634 | return (zfs_secpolicy_deleg_share(zc, cr)); | |
34dc7c2f BB |
635 | } |
636 | } | |
637 | ||
638 | static int | |
639 | zfs_get_parent(const char *datasetname, char *parent, int parentsize) | |
640 | { | |
641 | char *cp; | |
642 | ||
643 | /* | |
644 | * Remove the @bla or /bla from the end of the name to get the parent. | |
645 | */ | |
646 | (void) strncpy(parent, datasetname, parentsize); | |
647 | cp = strrchr(parent, '@'); | |
648 | if (cp != NULL) { | |
649 | cp[0] = '\0'; | |
650 | } else { | |
651 | cp = strrchr(parent, '/'); | |
652 | if (cp == NULL) | |
653 | return (ENOENT); | |
654 | cp[0] = '\0'; | |
655 | } | |
656 | ||
657 | return (0); | |
658 | } | |
659 | ||
660 | int | |
661 | zfs_secpolicy_destroy_perms(const char *name, cred_t *cr) | |
662 | { | |
663 | int error; | |
664 | ||
665 | if ((error = zfs_secpolicy_write_perms(name, | |
666 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
667 | return (error); | |
668 | ||
669 | return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr)); | |
670 | } | |
671 | ||
672 | static int | |
673 | zfs_secpolicy_destroy(zfs_cmd_t *zc, cred_t *cr) | |
674 | { | |
675 | return (zfs_secpolicy_destroy_perms(zc->zc_name, cr)); | |
676 | } | |
677 | ||
678 | /* | |
428870ff BB |
679 | * Destroying snapshots with delegated permissions requires |
680 | * descendent mount and destroy permissions. | |
681 | * Reassemble the full filesystem@snap name so dsl_deleg_access() | |
682 | * can do the correct permission check. | |
683 | * | |
684 | * Since this routine is used when doing a recursive destroy of snapshots | |
685 | * and destroying snapshots requires descendent permissions, a successfull | |
686 | * check of the top level snapshot applies to snapshots of all descendent | |
687 | * datasets as well. | |
34dc7c2f | 688 | */ |
34dc7c2f | 689 | static int |
428870ff | 690 | zfs_secpolicy_destroy_snaps(zfs_cmd_t *zc, cred_t *cr) |
34dc7c2f | 691 | { |
428870ff BB |
692 | int error; |
693 | char *dsname; | |
694 | ||
695 | dsname = kmem_asprintf("%s@%s", zc->zc_name, zc->zc_value); | |
696 | ||
697 | error = zfs_secpolicy_destroy_perms(dsname, cr); | |
698 | ||
699 | strfree(dsname); | |
700 | return (error); | |
34dc7c2f BB |
701 | } |
702 | ||
703 | int | |
704 | zfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr) | |
705 | { | |
428870ff | 706 | char parentname[MAXNAMELEN]; |
34dc7c2f BB |
707 | int error; |
708 | ||
709 | if ((error = zfs_secpolicy_write_perms(from, | |
710 | ZFS_DELEG_PERM_RENAME, cr)) != 0) | |
711 | return (error); | |
712 | ||
713 | if ((error = zfs_secpolicy_write_perms(from, | |
714 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
715 | return (error); | |
716 | ||
717 | if ((error = zfs_get_parent(to, parentname, | |
718 | sizeof (parentname))) != 0) | |
719 | return (error); | |
720 | ||
721 | if ((error = zfs_secpolicy_write_perms(parentname, | |
722 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
723 | return (error); | |
724 | ||
725 | if ((error = zfs_secpolicy_write_perms(parentname, | |
726 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
727 | return (error); | |
728 | ||
729 | return (error); | |
730 | } | |
731 | ||
732 | static int | |
733 | zfs_secpolicy_rename(zfs_cmd_t *zc, cred_t *cr) | |
734 | { | |
735 | return (zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr)); | |
736 | } | |
737 | ||
738 | static int | |
739 | zfs_secpolicy_promote(zfs_cmd_t *zc, cred_t *cr) | |
740 | { | |
428870ff | 741 | char parentname[MAXNAMELEN]; |
34dc7c2f BB |
742 | objset_t *clone; |
743 | int error; | |
744 | ||
745 | error = zfs_secpolicy_write_perms(zc->zc_name, | |
746 | ZFS_DELEG_PERM_PROMOTE, cr); | |
747 | if (error) | |
748 | return (error); | |
749 | ||
428870ff | 750 | error = dmu_objset_hold(zc->zc_name, FTAG, &clone); |
34dc7c2f BB |
751 | |
752 | if (error == 0) { | |
753 | dsl_dataset_t *pclone = NULL; | |
754 | dsl_dir_t *dd; | |
428870ff | 755 | dd = clone->os_dsl_dataset->ds_dir; |
34dc7c2f BB |
756 | |
757 | rw_enter(&dd->dd_pool->dp_config_rwlock, RW_READER); | |
b128c09f BB |
758 | error = dsl_dataset_hold_obj(dd->dd_pool, |
759 | dd->dd_phys->dd_origin_obj, FTAG, &pclone); | |
34dc7c2f BB |
760 | rw_exit(&dd->dd_pool->dp_config_rwlock); |
761 | if (error) { | |
428870ff | 762 | dmu_objset_rele(clone, FTAG); |
34dc7c2f BB |
763 | return (error); |
764 | } | |
765 | ||
766 | error = zfs_secpolicy_write_perms(zc->zc_name, | |
767 | ZFS_DELEG_PERM_MOUNT, cr); | |
768 | ||
769 | dsl_dataset_name(pclone, parentname); | |
428870ff | 770 | dmu_objset_rele(clone, FTAG); |
b128c09f | 771 | dsl_dataset_rele(pclone, FTAG); |
34dc7c2f BB |
772 | if (error == 0) |
773 | error = zfs_secpolicy_write_perms(parentname, | |
774 | ZFS_DELEG_PERM_PROMOTE, cr); | |
775 | } | |
776 | return (error); | |
777 | } | |
778 | ||
779 | static int | |
780 | zfs_secpolicy_receive(zfs_cmd_t *zc, cred_t *cr) | |
781 | { | |
782 | int error; | |
783 | ||
784 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
785 | ZFS_DELEG_PERM_RECEIVE, cr)) != 0) | |
786 | return (error); | |
787 | ||
788 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
789 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
790 | return (error); | |
791 | ||
792 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
793 | ZFS_DELEG_PERM_CREATE, cr)); | |
794 | } | |
795 | ||
796 | int | |
797 | zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr) | |
798 | { | |
428870ff BB |
799 | return (zfs_secpolicy_write_perms(name, |
800 | ZFS_DELEG_PERM_SNAPSHOT, cr)); | |
34dc7c2f BB |
801 | } |
802 | ||
803 | static int | |
804 | zfs_secpolicy_snapshot(zfs_cmd_t *zc, cred_t *cr) | |
805 | { | |
806 | ||
807 | return (zfs_secpolicy_snapshot_perms(zc->zc_name, cr)); | |
808 | } | |
809 | ||
810 | static int | |
811 | zfs_secpolicy_create(zfs_cmd_t *zc, cred_t *cr) | |
812 | { | |
428870ff BB |
813 | char parentname[MAXNAMELEN]; |
814 | int error; | |
34dc7c2f BB |
815 | |
816 | if ((error = zfs_get_parent(zc->zc_name, parentname, | |
817 | sizeof (parentname))) != 0) | |
818 | return (error); | |
819 | ||
820 | if (zc->zc_value[0] != '\0') { | |
821 | if ((error = zfs_secpolicy_write_perms(zc->zc_value, | |
822 | ZFS_DELEG_PERM_CLONE, cr)) != 0) | |
823 | return (error); | |
824 | } | |
825 | ||
826 | if ((error = zfs_secpolicy_write_perms(parentname, | |
827 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
828 | return (error); | |
829 | ||
830 | error = zfs_secpolicy_write_perms(parentname, | |
831 | ZFS_DELEG_PERM_MOUNT, cr); | |
832 | ||
833 | return (error); | |
834 | } | |
835 | ||
836 | static int | |
837 | zfs_secpolicy_umount(zfs_cmd_t *zc, cred_t *cr) | |
838 | { | |
839 | int error; | |
840 | ||
841 | error = secpolicy_fs_unmount(cr, NULL); | |
842 | if (error) { | |
843 | error = dsl_deleg_access(zc->zc_name, ZFS_DELEG_PERM_MOUNT, cr); | |
844 | } | |
845 | return (error); | |
846 | } | |
847 | ||
848 | /* | |
849 | * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires | |
850 | * SYS_CONFIG privilege, which is not available in a local zone. | |
851 | */ | |
852 | /* ARGSUSED */ | |
853 | static int | |
854 | zfs_secpolicy_config(zfs_cmd_t *zc, cred_t *cr) | |
855 | { | |
856 | if (secpolicy_sys_config(cr, B_FALSE) != 0) | |
857 | return (EPERM); | |
858 | ||
859 | return (0); | |
860 | } | |
861 | ||
572e2857 BB |
862 | /* |
863 | * Policy for object to name lookups. | |
864 | */ | |
865 | /* ARGSUSED */ | |
866 | static int | |
867 | zfs_secpolicy_diff(zfs_cmd_t *zc, cred_t *cr) | |
868 | { | |
869 | int error; | |
870 | ||
871 | if ((error = secpolicy_sys_config(cr, B_FALSE)) == 0) | |
872 | return (0); | |
873 | ||
874 | error = zfs_secpolicy_write_perms(zc->zc_name, ZFS_DELEG_PERM_DIFF, cr); | |
875 | return (error); | |
876 | } | |
877 | ||
34dc7c2f BB |
878 | /* |
879 | * Policy for fault injection. Requires all privileges. | |
880 | */ | |
881 | /* ARGSUSED */ | |
882 | static int | |
883 | zfs_secpolicy_inject(zfs_cmd_t *zc, cred_t *cr) | |
884 | { | |
885 | return (secpolicy_zinject(cr)); | |
886 | } | |
887 | ||
888 | static int | |
889 | zfs_secpolicy_inherit(zfs_cmd_t *zc, cred_t *cr) | |
890 | { | |
891 | zfs_prop_t prop = zfs_name_to_prop(zc->zc_value); | |
892 | ||
893 | if (prop == ZPROP_INVAL) { | |
894 | if (!zfs_prop_user(zc->zc_value)) | |
895 | return (EINVAL); | |
896 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
897 | ZFS_DELEG_PERM_USERPROP, cr)); | |
898 | } else { | |
428870ff BB |
899 | return (zfs_secpolicy_setprop(zc->zc_name, prop, |
900 | NULL, cr)); | |
34dc7c2f BB |
901 | } |
902 | } | |
903 | ||
9babb374 BB |
904 | static int |
905 | zfs_secpolicy_userspace_one(zfs_cmd_t *zc, cred_t *cr) | |
906 | { | |
907 | int err = zfs_secpolicy_read(zc, cr); | |
908 | if (err) | |
909 | return (err); | |
910 | ||
911 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
912 | return (EINVAL); | |
913 | ||
914 | if (zc->zc_value[0] == 0) { | |
915 | /* | |
916 | * They are asking about a posix uid/gid. If it's | |
917 | * themself, allow it. | |
918 | */ | |
919 | if (zc->zc_objset_type == ZFS_PROP_USERUSED || | |
920 | zc->zc_objset_type == ZFS_PROP_USERQUOTA) { | |
921 | if (zc->zc_guid == crgetuid(cr)) | |
922 | return (0); | |
923 | } else { | |
924 | if (groupmember(zc->zc_guid, cr)) | |
925 | return (0); | |
926 | } | |
927 | } | |
928 | ||
929 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
930 | userquota_perms[zc->zc_objset_type], cr)); | |
931 | } | |
932 | ||
933 | static int | |
934 | zfs_secpolicy_userspace_many(zfs_cmd_t *zc, cred_t *cr) | |
935 | { | |
936 | int err = zfs_secpolicy_read(zc, cr); | |
937 | if (err) | |
938 | return (err); | |
939 | ||
940 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
941 | return (EINVAL); | |
942 | ||
943 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
944 | userquota_perms[zc->zc_objset_type], cr)); | |
945 | } | |
946 | ||
947 | static int | |
948 | zfs_secpolicy_userspace_upgrade(zfs_cmd_t *zc, cred_t *cr) | |
949 | { | |
428870ff BB |
950 | return (zfs_secpolicy_setprop(zc->zc_name, ZFS_PROP_VERSION, |
951 | NULL, cr)); | |
9babb374 BB |
952 | } |
953 | ||
45d1cae3 BB |
954 | static int |
955 | zfs_secpolicy_hold(zfs_cmd_t *zc, cred_t *cr) | |
956 | { | |
957 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
958 | ZFS_DELEG_PERM_HOLD, cr)); | |
959 | } | |
960 | ||
961 | static int | |
962 | zfs_secpolicy_release(zfs_cmd_t *zc, cred_t *cr) | |
963 | { | |
964 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
965 | ZFS_DELEG_PERM_RELEASE, cr)); | |
966 | } | |
967 | ||
572e2857 BB |
968 | /* |
969 | * Policy for allowing temporary snapshots to be taken or released | |
970 | */ | |
971 | static int | |
972 | zfs_secpolicy_tmp_snapshot(zfs_cmd_t *zc, cred_t *cr) | |
973 | { | |
974 | /* | |
975 | * A temporary snapshot is the same as a snapshot, | |
976 | * hold, destroy and release all rolled into one. | |
977 | * Delegated diff alone is sufficient that we allow this. | |
978 | */ | |
979 | int error; | |
980 | ||
981 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
982 | ZFS_DELEG_PERM_DIFF, cr)) == 0) | |
983 | return (0); | |
984 | ||
985 | error = zfs_secpolicy_snapshot(zc, cr); | |
986 | if (!error) | |
987 | error = zfs_secpolicy_hold(zc, cr); | |
988 | if (!error) | |
989 | error = zfs_secpolicy_release(zc, cr); | |
990 | if (!error) | |
991 | error = zfs_secpolicy_destroy(zc, cr); | |
992 | return (error); | |
993 | } | |
994 | ||
34dc7c2f BB |
995 | /* |
996 | * Returns the nvlist as specified by the user in the zfs_cmd_t. | |
997 | */ | |
998 | static int | |
9babb374 | 999 | get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp) |
34dc7c2f BB |
1000 | { |
1001 | char *packed; | |
1002 | int error; | |
1003 | nvlist_t *list = NULL; | |
1004 | ||
1005 | /* | |
1006 | * Read in and unpack the user-supplied nvlist. | |
1007 | */ | |
1008 | if (size == 0) | |
1009 | return (EINVAL); | |
1010 | ||
1011 | packed = kmem_alloc(size, KM_SLEEP); | |
1012 | ||
9babb374 BB |
1013 | if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size, |
1014 | iflag)) != 0) { | |
34dc7c2f BB |
1015 | kmem_free(packed, size); |
1016 | return (error); | |
1017 | } | |
1018 | ||
1019 | if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) { | |
1020 | kmem_free(packed, size); | |
1021 | return (error); | |
1022 | } | |
1023 | ||
1024 | kmem_free(packed, size); | |
1025 | ||
1026 | *nvp = list; | |
1027 | return (0); | |
1028 | } | |
1029 | ||
428870ff BB |
1030 | static int |
1031 | fit_error_list(zfs_cmd_t *zc, nvlist_t **errors) | |
1032 | { | |
1033 | size_t size; | |
1034 | ||
1035 | VERIFY(nvlist_size(*errors, &size, NV_ENCODE_NATIVE) == 0); | |
1036 | ||
1037 | if (size > zc->zc_nvlist_dst_size) { | |
1038 | nvpair_t *more_errors; | |
1039 | int n = 0; | |
1040 | ||
1041 | if (zc->zc_nvlist_dst_size < 1024) | |
1042 | return (ENOMEM); | |
1043 | ||
1044 | VERIFY(nvlist_add_int32(*errors, ZPROP_N_MORE_ERRORS, 0) == 0); | |
1045 | more_errors = nvlist_prev_nvpair(*errors, NULL); | |
1046 | ||
1047 | do { | |
1048 | nvpair_t *pair = nvlist_prev_nvpair(*errors, | |
1049 | more_errors); | |
1050 | VERIFY(nvlist_remove_nvpair(*errors, pair) == 0); | |
1051 | n++; | |
1052 | VERIFY(nvlist_size(*errors, &size, | |
1053 | NV_ENCODE_NATIVE) == 0); | |
1054 | } while (size > zc->zc_nvlist_dst_size); | |
1055 | ||
1056 | VERIFY(nvlist_remove_nvpair(*errors, more_errors) == 0); | |
1057 | VERIFY(nvlist_add_int32(*errors, ZPROP_N_MORE_ERRORS, n) == 0); | |
1058 | ASSERT(nvlist_size(*errors, &size, NV_ENCODE_NATIVE) == 0); | |
1059 | ASSERT(size <= zc->zc_nvlist_dst_size); | |
1060 | } | |
1061 | ||
1062 | return (0); | |
1063 | } | |
1064 | ||
34dc7c2f BB |
1065 | static int |
1066 | put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl) | |
1067 | { | |
1068 | char *packed = NULL; | |
428870ff | 1069 | int error = 0; |
34dc7c2f | 1070 | size_t size; |
34dc7c2f BB |
1071 | |
1072 | VERIFY(nvlist_size(nvl, &size, NV_ENCODE_NATIVE) == 0); | |
1073 | ||
1074 | if (size > zc->zc_nvlist_dst_size) { | |
1075 | error = ENOMEM; | |
1076 | } else { | |
1077 | packed = kmem_alloc(size, KM_SLEEP); | |
1078 | VERIFY(nvlist_pack(nvl, &packed, &size, NV_ENCODE_NATIVE, | |
1079 | KM_SLEEP) == 0); | |
428870ff BB |
1080 | if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst, |
1081 | size, zc->zc_iflags) != 0) | |
1082 | error = EFAULT; | |
34dc7c2f BB |
1083 | kmem_free(packed, size); |
1084 | } | |
1085 | ||
1086 | zc->zc_nvlist_dst_size = size; | |
1087 | return (error); | |
1088 | } | |
1089 | ||
9babb374 | 1090 | static int |
428870ff | 1091 | getzfsvfs(const char *dsname, zfsvfs_t **zfvp) |
9babb374 BB |
1092 | { |
1093 | objset_t *os; | |
1094 | int error; | |
1095 | ||
428870ff | 1096 | error = dmu_objset_hold(dsname, FTAG, &os); |
9babb374 BB |
1097 | if (error) |
1098 | return (error); | |
428870ff BB |
1099 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
1100 | dmu_objset_rele(os, FTAG); | |
1101 | return (EINVAL); | |
1102 | } | |
9babb374 | 1103 | |
428870ff BB |
1104 | mutex_enter(&os->os_user_ptr_lock); |
1105 | *zfvp = dmu_objset_get_user(os); | |
1106 | if (*zfvp) { | |
1107 | VFS_HOLD((*zfvp)->z_vfs); | |
9babb374 BB |
1108 | } else { |
1109 | error = ESRCH; | |
1110 | } | |
428870ff BB |
1111 | mutex_exit(&os->os_user_ptr_lock); |
1112 | dmu_objset_rele(os, FTAG); | |
9babb374 BB |
1113 | return (error); |
1114 | } | |
1115 | ||
1116 | /* | |
1117 | * Find a zfsvfs_t for a mounted filesystem, or create our own, in which | |
1118 | * case its z_vfs will be NULL, and it will be opened as the owner. | |
1119 | */ | |
1120 | static int | |
572e2857 | 1121 | zfsvfs_hold(const char *name, void *tag, zfsvfs_t **zfvp, boolean_t writer) |
9babb374 BB |
1122 | { |
1123 | int error = 0; | |
9babb374 | 1124 | |
428870ff BB |
1125 | if (getzfsvfs(name, zfvp) != 0) |
1126 | error = zfsvfs_create(name, zfvp); | |
9babb374 | 1127 | if (error == 0) { |
572e2857 BB |
1128 | rrw_enter(&(*zfvp)->z_teardown_lock, (writer) ? RW_WRITER : |
1129 | RW_READER, tag); | |
428870ff | 1130 | if ((*zfvp)->z_unmounted) { |
9babb374 BB |
1131 | /* |
1132 | * XXX we could probably try again, since the unmounting | |
1133 | * thread should be just about to disassociate the | |
1134 | * objset from the zfsvfs. | |
1135 | */ | |
428870ff | 1136 | rrw_exit(&(*zfvp)->z_teardown_lock, tag); |
9babb374 BB |
1137 | return (EBUSY); |
1138 | } | |
1139 | } | |
1140 | return (error); | |
1141 | } | |
1142 | ||
1143 | static void | |
1144 | zfsvfs_rele(zfsvfs_t *zfsvfs, void *tag) | |
1145 | { | |
1146 | rrw_exit(&zfsvfs->z_teardown_lock, tag); | |
1147 | ||
1148 | if (zfsvfs->z_vfs) { | |
1149 | VFS_RELE(zfsvfs->z_vfs); | |
1150 | } else { | |
428870ff | 1151 | dmu_objset_disown(zfsvfs->z_os, zfsvfs); |
9babb374 BB |
1152 | zfsvfs_free(zfsvfs); |
1153 | } | |
1154 | } | |
1155 | ||
34dc7c2f BB |
1156 | static int |
1157 | zfs_ioc_pool_create(zfs_cmd_t *zc) | |
1158 | { | |
1159 | int error; | |
1160 | nvlist_t *config, *props = NULL; | |
b128c09f BB |
1161 | nvlist_t *rootprops = NULL; |
1162 | nvlist_t *zplprops = NULL; | |
34dc7c2f BB |
1163 | char *buf; |
1164 | ||
1165 | if (error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1166 | zc->zc_iflags, &config)) |
34dc7c2f BB |
1167 | return (error); |
1168 | ||
1169 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1170 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1171 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1172 | nvlist_free(config); |
1173 | return (error); | |
1174 | } | |
1175 | ||
b128c09f BB |
1176 | if (props) { |
1177 | nvlist_t *nvl = NULL; | |
1178 | uint64_t version = SPA_VERSION; | |
1179 | ||
1180 | (void) nvlist_lookup_uint64(props, | |
1181 | zpool_prop_to_name(ZPOOL_PROP_VERSION), &version); | |
1182 | if (version < SPA_VERSION_INITIAL || version > SPA_VERSION) { | |
1183 | error = EINVAL; | |
1184 | goto pool_props_bad; | |
1185 | } | |
1186 | (void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl); | |
1187 | if (nvl) { | |
1188 | error = nvlist_dup(nvl, &rootprops, KM_SLEEP); | |
1189 | if (error != 0) { | |
1190 | nvlist_free(config); | |
1191 | nvlist_free(props); | |
1192 | return (error); | |
1193 | } | |
1194 | (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS); | |
1195 | } | |
1196 | VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
1197 | error = zfs_fill_zplprops_root(version, rootprops, | |
1198 | zplprops, NULL); | |
1199 | if (error) | |
1200 | goto pool_props_bad; | |
1201 | } | |
1202 | ||
34dc7c2f BB |
1203 | buf = history_str_get(zc); |
1204 | ||
b128c09f BB |
1205 | error = spa_create(zc->zc_name, config, props, buf, zplprops); |
1206 | ||
1207 | /* | |
1208 | * Set the remaining root properties | |
1209 | */ | |
428870ff BB |
1210 | if (!error && (error = zfs_set_prop_nvlist(zc->zc_name, |
1211 | ZPROP_SRC_LOCAL, rootprops, NULL)) != 0) | |
b128c09f | 1212 | (void) spa_destroy(zc->zc_name); |
34dc7c2f BB |
1213 | |
1214 | if (buf != NULL) | |
1215 | history_str_free(buf); | |
1216 | ||
b128c09f BB |
1217 | pool_props_bad: |
1218 | nvlist_free(rootprops); | |
1219 | nvlist_free(zplprops); | |
34dc7c2f | 1220 | nvlist_free(config); |
b128c09f | 1221 | nvlist_free(props); |
34dc7c2f BB |
1222 | |
1223 | return (error); | |
1224 | } | |
1225 | ||
1226 | static int | |
1227 | zfs_ioc_pool_destroy(zfs_cmd_t *zc) | |
1228 | { | |
1229 | int error; | |
1230 | zfs_log_history(zc); | |
1231 | error = spa_destroy(zc->zc_name); | |
428870ff BB |
1232 | if (error == 0) |
1233 | zvol_remove_minors(zc->zc_name); | |
34dc7c2f BB |
1234 | return (error); |
1235 | } | |
1236 | ||
1237 | static int | |
1238 | zfs_ioc_pool_import(zfs_cmd_t *zc) | |
1239 | { | |
34dc7c2f BB |
1240 | nvlist_t *config, *props = NULL; |
1241 | uint64_t guid; | |
428870ff | 1242 | int error; |
34dc7c2f BB |
1243 | |
1244 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1245 | zc->zc_iflags, &config)) != 0) |
34dc7c2f BB |
1246 | return (error); |
1247 | ||
1248 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1249 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1250 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1251 | nvlist_free(config); |
1252 | return (error); | |
1253 | } | |
1254 | ||
1255 | if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 || | |
1256 | guid != zc->zc_guid) | |
1257 | error = EINVAL; | |
1258 | else | |
572e2857 | 1259 | error = spa_import(zc->zc_name, config, props, zc->zc_cookie); |
34dc7c2f | 1260 | |
572e2857 BB |
1261 | if (zc->zc_nvlist_dst != 0) { |
1262 | int err; | |
1263 | ||
1264 | if ((err = put_nvlist(zc, config)) != 0) | |
1265 | error = err; | |
1266 | } | |
428870ff | 1267 | |
34dc7c2f BB |
1268 | nvlist_free(config); |
1269 | ||
1270 | if (props) | |
1271 | nvlist_free(props); | |
1272 | ||
1273 | return (error); | |
1274 | } | |
1275 | ||
1276 | static int | |
1277 | zfs_ioc_pool_export(zfs_cmd_t *zc) | |
1278 | { | |
1279 | int error; | |
b128c09f | 1280 | boolean_t force = (boolean_t)zc->zc_cookie; |
fb5f0bc8 | 1281 | boolean_t hardforce = (boolean_t)zc->zc_guid; |
b128c09f | 1282 | |
34dc7c2f | 1283 | zfs_log_history(zc); |
fb5f0bc8 | 1284 | error = spa_export(zc->zc_name, NULL, force, hardforce); |
428870ff BB |
1285 | if (error == 0) |
1286 | zvol_remove_minors(zc->zc_name); | |
34dc7c2f BB |
1287 | return (error); |
1288 | } | |
1289 | ||
1290 | static int | |
1291 | zfs_ioc_pool_configs(zfs_cmd_t *zc) | |
1292 | { | |
1293 | nvlist_t *configs; | |
1294 | int error; | |
1295 | ||
1296 | if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL) | |
1297 | return (EEXIST); | |
1298 | ||
1299 | error = put_nvlist(zc, configs); | |
1300 | ||
1301 | nvlist_free(configs); | |
1302 | ||
1303 | return (error); | |
1304 | } | |
1305 | ||
1306 | static int | |
1307 | zfs_ioc_pool_stats(zfs_cmd_t *zc) | |
1308 | { | |
1309 | nvlist_t *config; | |
1310 | int error; | |
1311 | int ret = 0; | |
1312 | ||
1313 | error = spa_get_stats(zc->zc_name, &config, zc->zc_value, | |
1314 | sizeof (zc->zc_value)); | |
1315 | ||
1316 | if (config != NULL) { | |
1317 | ret = put_nvlist(zc, config); | |
1318 | nvlist_free(config); | |
1319 | ||
1320 | /* | |
1321 | * The config may be present even if 'error' is non-zero. | |
1322 | * In this case we return success, and preserve the real errno | |
1323 | * in 'zc_cookie'. | |
1324 | */ | |
1325 | zc->zc_cookie = error; | |
1326 | } else { | |
1327 | ret = error; | |
1328 | } | |
1329 | ||
1330 | return (ret); | |
1331 | } | |
1332 | ||
1333 | /* | |
1334 | * Try to import the given pool, returning pool stats as appropriate so that | |
1335 | * user land knows which devices are available and overall pool health. | |
1336 | */ | |
1337 | static int | |
1338 | zfs_ioc_pool_tryimport(zfs_cmd_t *zc) | |
1339 | { | |
1340 | nvlist_t *tryconfig, *config; | |
1341 | int error; | |
1342 | ||
1343 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1344 | zc->zc_iflags, &tryconfig)) != 0) |
34dc7c2f BB |
1345 | return (error); |
1346 | ||
1347 | config = spa_tryimport(tryconfig); | |
1348 | ||
1349 | nvlist_free(tryconfig); | |
1350 | ||
1351 | if (config == NULL) | |
1352 | return (EINVAL); | |
1353 | ||
1354 | error = put_nvlist(zc, config); | |
1355 | nvlist_free(config); | |
1356 | ||
1357 | return (error); | |
1358 | } | |
1359 | ||
428870ff BB |
1360 | /* |
1361 | * inputs: | |
1362 | * zc_name name of the pool | |
1363 | * zc_cookie scan func (pool_scan_func_t) | |
1364 | */ | |
34dc7c2f | 1365 | static int |
428870ff | 1366 | zfs_ioc_pool_scan(zfs_cmd_t *zc) |
34dc7c2f BB |
1367 | { |
1368 | spa_t *spa; | |
1369 | int error; | |
1370 | ||
1371 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1372 | return (error); | |
1373 | ||
428870ff BB |
1374 | if (zc->zc_cookie == POOL_SCAN_NONE) |
1375 | error = spa_scan_stop(spa); | |
1376 | else | |
1377 | error = spa_scan(spa, zc->zc_cookie); | |
34dc7c2f BB |
1378 | |
1379 | spa_close(spa, FTAG); | |
1380 | ||
1381 | return (error); | |
1382 | } | |
1383 | ||
1384 | static int | |
1385 | zfs_ioc_pool_freeze(zfs_cmd_t *zc) | |
1386 | { | |
1387 | spa_t *spa; | |
1388 | int error; | |
1389 | ||
1390 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1391 | if (error == 0) { | |
1392 | spa_freeze(spa); | |
1393 | spa_close(spa, FTAG); | |
1394 | } | |
1395 | return (error); | |
1396 | } | |
1397 | ||
1398 | static int | |
1399 | zfs_ioc_pool_upgrade(zfs_cmd_t *zc) | |
1400 | { | |
1401 | spa_t *spa; | |
1402 | int error; | |
1403 | ||
1404 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1405 | return (error); | |
1406 | ||
1407 | if (zc->zc_cookie < spa_version(spa) || zc->zc_cookie > SPA_VERSION) { | |
1408 | spa_close(spa, FTAG); | |
1409 | return (EINVAL); | |
1410 | } | |
1411 | ||
1412 | spa_upgrade(spa, zc->zc_cookie); | |
1413 | spa_close(spa, FTAG); | |
1414 | ||
1415 | return (error); | |
1416 | } | |
1417 | ||
1418 | static int | |
1419 | zfs_ioc_pool_get_history(zfs_cmd_t *zc) | |
1420 | { | |
1421 | spa_t *spa; | |
1422 | char *hist_buf; | |
1423 | uint64_t size; | |
1424 | int error; | |
1425 | ||
1426 | if ((size = zc->zc_history_len) == 0) | |
1427 | return (EINVAL); | |
1428 | ||
1429 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1430 | return (error); | |
1431 | ||
1432 | if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { | |
1433 | spa_close(spa, FTAG); | |
1434 | return (ENOTSUP); | |
1435 | } | |
1436 | ||
1437 | hist_buf = kmem_alloc(size, KM_SLEEP); | |
1438 | if ((error = spa_history_get(spa, &zc->zc_history_offset, | |
1439 | &zc->zc_history_len, hist_buf)) == 0) { | |
9babb374 BB |
1440 | error = ddi_copyout(hist_buf, |
1441 | (void *)(uintptr_t)zc->zc_history, | |
1442 | zc->zc_history_len, zc->zc_iflags); | |
34dc7c2f BB |
1443 | } |
1444 | ||
1445 | spa_close(spa, FTAG); | |
1446 | kmem_free(hist_buf, size); | |
1447 | return (error); | |
1448 | } | |
1449 | ||
1450 | static int | |
1451 | zfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc) | |
1452 | { | |
1453 | int error; | |
1454 | ||
1455 | if (error = dsl_dsobj_to_dsname(zc->zc_name, zc->zc_obj, zc->zc_value)) | |
1456 | return (error); | |
1457 | ||
1458 | return (0); | |
1459 | } | |
1460 | ||
428870ff BB |
1461 | /* |
1462 | * inputs: | |
1463 | * zc_name name of filesystem | |
1464 | * zc_obj object to find | |
1465 | * | |
1466 | * outputs: | |
1467 | * zc_value name of object | |
1468 | */ | |
34dc7c2f BB |
1469 | static int |
1470 | zfs_ioc_obj_to_path(zfs_cmd_t *zc) | |
1471 | { | |
428870ff | 1472 | objset_t *os; |
34dc7c2f BB |
1473 | int error; |
1474 | ||
428870ff BB |
1475 | /* XXX reading from objset not owned */ |
1476 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) | |
34dc7c2f | 1477 | return (error); |
428870ff BB |
1478 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
1479 | dmu_objset_rele(os, FTAG); | |
1480 | return (EINVAL); | |
1481 | } | |
1482 | error = zfs_obj_to_path(os, zc->zc_obj, zc->zc_value, | |
34dc7c2f | 1483 | sizeof (zc->zc_value)); |
428870ff | 1484 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
1485 | |
1486 | return (error); | |
1487 | } | |
1488 | ||
572e2857 BB |
1489 | /* |
1490 | * inputs: | |
1491 | * zc_name name of filesystem | |
1492 | * zc_obj object to find | |
1493 | * | |
1494 | * outputs: | |
1495 | * zc_stat stats on object | |
1496 | * zc_value path to object | |
1497 | */ | |
1498 | static int | |
1499 | zfs_ioc_obj_to_stats(zfs_cmd_t *zc) | |
1500 | { | |
1501 | objset_t *os; | |
1502 | int error; | |
1503 | ||
1504 | /* XXX reading from objset not owned */ | |
1505 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) | |
1506 | return (error); | |
1507 | if (dmu_objset_type(os) != DMU_OST_ZFS) { | |
1508 | dmu_objset_rele(os, FTAG); | |
1509 | return (EINVAL); | |
1510 | } | |
1511 | error = zfs_obj_to_stats(os, zc->zc_obj, &zc->zc_stat, zc->zc_value, | |
1512 | sizeof (zc->zc_value)); | |
1513 | dmu_objset_rele(os, FTAG); | |
1514 | ||
1515 | return (error); | |
1516 | } | |
1517 | ||
34dc7c2f BB |
1518 | static int |
1519 | zfs_ioc_vdev_add(zfs_cmd_t *zc) | |
1520 | { | |
1521 | spa_t *spa; | |
1522 | int error; | |
1523 | nvlist_t *config, **l2cache, **spares; | |
1524 | uint_t nl2cache = 0, nspares = 0; | |
1525 | ||
1526 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1527 | if (error != 0) | |
1528 | return (error); | |
1529 | ||
1530 | error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1531 | zc->zc_iflags, &config); |
34dc7c2f BB |
1532 | (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_L2CACHE, |
1533 | &l2cache, &nl2cache); | |
1534 | ||
1535 | (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_SPARES, | |
1536 | &spares, &nspares); | |
1537 | ||
1538 | /* | |
1539 | * A root pool with concatenated devices is not supported. | |
1540 | * Thus, can not add a device to a root pool. | |
1541 | * | |
1542 | * Intent log device can not be added to a rootpool because | |
1543 | * during mountroot, zil is replayed, a seperated log device | |
1544 | * can not be accessed during the mountroot time. | |
1545 | * | |
1546 | * l2cache and spare devices are ok to be added to a rootpool. | |
1547 | */ | |
428870ff BB |
1548 | if (spa_bootfs(spa) != 0 && nl2cache == 0 && nspares == 0) { |
1549 | nvlist_free(config); | |
34dc7c2f BB |
1550 | spa_close(spa, FTAG); |
1551 | return (EDOM); | |
1552 | } | |
1553 | ||
1554 | if (error == 0) { | |
1555 | error = spa_vdev_add(spa, config); | |
1556 | nvlist_free(config); | |
1557 | } | |
1558 | spa_close(spa, FTAG); | |
1559 | return (error); | |
1560 | } | |
1561 | ||
428870ff BB |
1562 | /* |
1563 | * inputs: | |
1564 | * zc_name name of the pool | |
1565 | * zc_nvlist_conf nvlist of devices to remove | |
1566 | * zc_cookie to stop the remove? | |
1567 | */ | |
34dc7c2f BB |
1568 | static int |
1569 | zfs_ioc_vdev_remove(zfs_cmd_t *zc) | |
1570 | { | |
1571 | spa_t *spa; | |
1572 | int error; | |
1573 | ||
1574 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1575 | if (error != 0) | |
1576 | return (error); | |
1577 | error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE); | |
1578 | spa_close(spa, FTAG); | |
1579 | return (error); | |
1580 | } | |
1581 | ||
1582 | static int | |
1583 | zfs_ioc_vdev_set_state(zfs_cmd_t *zc) | |
1584 | { | |
1585 | spa_t *spa; | |
1586 | int error; | |
1587 | vdev_state_t newstate = VDEV_STATE_UNKNOWN; | |
1588 | ||
1589 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1590 | return (error); | |
1591 | switch (zc->zc_cookie) { | |
1592 | case VDEV_STATE_ONLINE: | |
1593 | error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate); | |
1594 | break; | |
1595 | ||
1596 | case VDEV_STATE_OFFLINE: | |
1597 | error = vdev_offline(spa, zc->zc_guid, zc->zc_obj); | |
1598 | break; | |
1599 | ||
1600 | case VDEV_STATE_FAULTED: | |
428870ff BB |
1601 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
1602 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
1603 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
1604 | ||
1605 | error = vdev_fault(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1606 | break; |
1607 | ||
1608 | case VDEV_STATE_DEGRADED: | |
428870ff BB |
1609 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
1610 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
1611 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
1612 | ||
1613 | error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1614 | break; |
1615 | ||
1616 | default: | |
1617 | error = EINVAL; | |
1618 | } | |
1619 | zc->zc_cookie = newstate; | |
1620 | spa_close(spa, FTAG); | |
1621 | return (error); | |
1622 | } | |
1623 | ||
1624 | static int | |
1625 | zfs_ioc_vdev_attach(zfs_cmd_t *zc) | |
1626 | { | |
1627 | spa_t *spa; | |
1628 | int replacing = zc->zc_cookie; | |
1629 | nvlist_t *config; | |
1630 | int error; | |
1631 | ||
1632 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1633 | return (error); | |
1634 | ||
1635 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1636 | zc->zc_iflags, &config)) == 0) { |
34dc7c2f BB |
1637 | error = spa_vdev_attach(spa, zc->zc_guid, config, replacing); |
1638 | nvlist_free(config); | |
1639 | } | |
1640 | ||
1641 | spa_close(spa, FTAG); | |
1642 | return (error); | |
1643 | } | |
1644 | ||
1645 | static int | |
1646 | zfs_ioc_vdev_detach(zfs_cmd_t *zc) | |
1647 | { | |
1648 | spa_t *spa; | |
1649 | int error; | |
1650 | ||
1651 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1652 | return (error); | |
1653 | ||
fb5f0bc8 | 1654 | error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE); |
34dc7c2f BB |
1655 | |
1656 | spa_close(spa, FTAG); | |
1657 | return (error); | |
1658 | } | |
1659 | ||
428870ff BB |
1660 | static int |
1661 | zfs_ioc_vdev_split(zfs_cmd_t *zc) | |
1662 | { | |
1663 | spa_t *spa; | |
1664 | nvlist_t *config, *props = NULL; | |
1665 | int error; | |
1666 | boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT); | |
1667 | ||
1668 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1669 | return (error); | |
1670 | ||
1671 | if (error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
1672 | zc->zc_iflags, &config)) { | |
1673 | spa_close(spa, FTAG); | |
1674 | return (error); | |
1675 | } | |
1676 | ||
1677 | if (zc->zc_nvlist_src_size != 0 && (error = | |
1678 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
1679 | zc->zc_iflags, &props))) { | |
1680 | spa_close(spa, FTAG); | |
1681 | nvlist_free(config); | |
1682 | return (error); | |
1683 | } | |
1684 | ||
1685 | error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp); | |
1686 | ||
1687 | spa_close(spa, FTAG); | |
1688 | ||
1689 | nvlist_free(config); | |
1690 | nvlist_free(props); | |
1691 | ||
1692 | return (error); | |
1693 | } | |
1694 | ||
34dc7c2f BB |
1695 | static int |
1696 | zfs_ioc_vdev_setpath(zfs_cmd_t *zc) | |
1697 | { | |
1698 | spa_t *spa; | |
1699 | char *path = zc->zc_value; | |
1700 | uint64_t guid = zc->zc_guid; | |
1701 | int error; | |
1702 | ||
1703 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1704 | if (error != 0) | |
1705 | return (error); | |
1706 | ||
1707 | error = spa_vdev_setpath(spa, guid, path); | |
1708 | spa_close(spa, FTAG); | |
1709 | return (error); | |
1710 | } | |
1711 | ||
9babb374 BB |
1712 | static int |
1713 | zfs_ioc_vdev_setfru(zfs_cmd_t *zc) | |
1714 | { | |
1715 | spa_t *spa; | |
1716 | char *fru = zc->zc_value; | |
1717 | uint64_t guid = zc->zc_guid; | |
1718 | int error; | |
1719 | ||
1720 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1721 | if (error != 0) | |
1722 | return (error); | |
1723 | ||
1724 | error = spa_vdev_setfru(spa, guid, fru); | |
1725 | spa_close(spa, FTAG); | |
1726 | return (error); | |
1727 | } | |
1728 | ||
34dc7c2f | 1729 | static int |
572e2857 | 1730 | zfs_ioc_objset_stats_impl(zfs_cmd_t *zc, objset_t *os) |
34dc7c2f | 1731 | { |
572e2857 | 1732 | int error = 0; |
34dc7c2f BB |
1733 | nvlist_t *nv; |
1734 | ||
34dc7c2f BB |
1735 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); |
1736 | ||
1737 | if (zc->zc_nvlist_dst != 0 && | |
428870ff | 1738 | (error = dsl_prop_get_all(os, &nv)) == 0) { |
34dc7c2f BB |
1739 | dmu_objset_stats(os, nv); |
1740 | /* | |
1741 | * NB: zvol_get_stats() will read the objset contents, | |
1742 | * which we aren't supposed to do with a | |
b128c09f | 1743 | * DS_MODE_USER hold, because it could be |
34dc7c2f | 1744 | * inconsistent. So this is a bit of a workaround... |
428870ff | 1745 | * XXX reading with out owning |
34dc7c2f BB |
1746 | */ |
1747 | if (!zc->zc_objset_stats.dds_inconsistent) { | |
1748 | if (dmu_objset_type(os) == DMU_OST_ZVOL) | |
1749 | VERIFY(zvol_get_stats(os, nv) == 0); | |
1750 | } | |
1751 | error = put_nvlist(zc, nv); | |
1752 | nvlist_free(nv); | |
1753 | } | |
1754 | ||
572e2857 BB |
1755 | return (error); |
1756 | } | |
1757 | ||
1758 | /* | |
1759 | * inputs: | |
1760 | * zc_name name of filesystem | |
1761 | * zc_nvlist_dst_size size of buffer for property nvlist | |
1762 | * | |
1763 | * outputs: | |
1764 | * zc_objset_stats stats | |
1765 | * zc_nvlist_dst property nvlist | |
1766 | * zc_nvlist_dst_size size of property nvlist | |
1767 | */ | |
1768 | static int | |
1769 | zfs_ioc_objset_stats(zfs_cmd_t *zc) | |
1770 | { | |
1771 | objset_t *os = NULL; | |
1772 | int error; | |
1773 | ||
1774 | if (error = dmu_objset_hold(zc->zc_name, FTAG, &os)) | |
1775 | return (error); | |
1776 | ||
1777 | error = zfs_ioc_objset_stats_impl(zc, os); | |
1778 | ||
428870ff | 1779 | dmu_objset_rele(os, FTAG); |
572e2857 | 1780 | |
428870ff BB |
1781 | return (error); |
1782 | } | |
1783 | ||
1784 | /* | |
1785 | * inputs: | |
1786 | * zc_name name of filesystem | |
1787 | * zc_nvlist_dst_size size of buffer for property nvlist | |
1788 | * | |
1789 | * outputs: | |
1790 | * zc_nvlist_dst received property nvlist | |
1791 | * zc_nvlist_dst_size size of received property nvlist | |
1792 | * | |
1793 | * Gets received properties (distinct from local properties on or after | |
1794 | * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from | |
1795 | * local property values. | |
1796 | */ | |
1797 | static int | |
1798 | zfs_ioc_objset_recvd_props(zfs_cmd_t *zc) | |
1799 | { | |
1800 | objset_t *os = NULL; | |
1801 | int error; | |
1802 | nvlist_t *nv; | |
1803 | ||
1804 | if (error = dmu_objset_hold(zc->zc_name, FTAG, &os)) | |
1805 | return (error); | |
1806 | ||
1807 | /* | |
1808 | * Without this check, we would return local property values if the | |
1809 | * caller has not already received properties on or after | |
1810 | * SPA_VERSION_RECVD_PROPS. | |
1811 | */ | |
1812 | if (!dsl_prop_get_hasrecvd(os)) { | |
1813 | dmu_objset_rele(os, FTAG); | |
1814 | return (ENOTSUP); | |
1815 | } | |
1816 | ||
1817 | if (zc->zc_nvlist_dst != 0 && | |
1818 | (error = dsl_prop_get_received(os, &nv)) == 0) { | |
1819 | error = put_nvlist(zc, nv); | |
1820 | nvlist_free(nv); | |
1821 | } | |
1822 | ||
1823 | dmu_objset_rele(os, FTAG); | |
34dc7c2f BB |
1824 | return (error); |
1825 | } | |
1826 | ||
1827 | static int | |
1828 | nvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop) | |
1829 | { | |
1830 | uint64_t value; | |
1831 | int error; | |
1832 | ||
1833 | /* | |
1834 | * zfs_get_zplprop() will either find a value or give us | |
1835 | * the default value (if there is one). | |
1836 | */ | |
1837 | if ((error = zfs_get_zplprop(os, prop, &value)) != 0) | |
1838 | return (error); | |
1839 | VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0); | |
1840 | return (0); | |
1841 | } | |
1842 | ||
1843 | /* | |
1844 | * inputs: | |
1845 | * zc_name name of filesystem | |
1846 | * zc_nvlist_dst_size size of buffer for zpl property nvlist | |
1847 | * | |
1848 | * outputs: | |
1849 | * zc_nvlist_dst zpl property nvlist | |
1850 | * zc_nvlist_dst_size size of zpl property nvlist | |
1851 | */ | |
1852 | static int | |
1853 | zfs_ioc_objset_zplprops(zfs_cmd_t *zc) | |
1854 | { | |
1855 | objset_t *os; | |
1856 | int err; | |
1857 | ||
428870ff BB |
1858 | /* XXX reading without owning */ |
1859 | if (err = dmu_objset_hold(zc->zc_name, FTAG, &os)) | |
34dc7c2f BB |
1860 | return (err); |
1861 | ||
1862 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); | |
1863 | ||
1864 | /* | |
1865 | * NB: nvl_add_zplprop() will read the objset contents, | |
b128c09f BB |
1866 | * which we aren't supposed to do with a DS_MODE_USER |
1867 | * hold, because it could be inconsistent. | |
34dc7c2f BB |
1868 | */ |
1869 | if (zc->zc_nvlist_dst != NULL && | |
1870 | !zc->zc_objset_stats.dds_inconsistent && | |
1871 | dmu_objset_type(os) == DMU_OST_ZFS) { | |
1872 | nvlist_t *nv; | |
1873 | ||
1874 | VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
1875 | if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 && | |
1876 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 && | |
1877 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 && | |
1878 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0) | |
1879 | err = put_nvlist(zc, nv); | |
1880 | nvlist_free(nv); | |
1881 | } else { | |
1882 | err = ENOENT; | |
1883 | } | |
428870ff | 1884 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
1885 | return (err); |
1886 | } | |
1887 | ||
9babb374 BB |
1888 | static boolean_t |
1889 | dataset_name_hidden(const char *name) | |
1890 | { | |
1891 | /* | |
1892 | * Skip over datasets that are not visible in this zone, | |
1893 | * internal datasets (which have a $ in their name), and | |
1894 | * temporary datasets (which have a % in their name). | |
1895 | */ | |
1896 | if (strchr(name, '$') != NULL) | |
1897 | return (B_TRUE); | |
1898 | if (strchr(name, '%') != NULL) | |
1899 | return (B_TRUE); | |
1900 | if (!INGLOBALZONE(curproc) && !zone_dataset_visible(name, NULL)) | |
1901 | return (B_TRUE); | |
1902 | return (B_FALSE); | |
1903 | } | |
1904 | ||
34dc7c2f BB |
1905 | /* |
1906 | * inputs: | |
1907 | * zc_name name of filesystem | |
1908 | * zc_cookie zap cursor | |
1909 | * zc_nvlist_dst_size size of buffer for property nvlist | |
1910 | * | |
1911 | * outputs: | |
1912 | * zc_name name of next filesystem | |
9babb374 | 1913 | * zc_cookie zap cursor |
34dc7c2f BB |
1914 | * zc_objset_stats stats |
1915 | * zc_nvlist_dst property nvlist | |
1916 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
1917 | */ |
1918 | static int | |
1919 | zfs_ioc_dataset_list_next(zfs_cmd_t *zc) | |
1920 | { | |
1921 | objset_t *os; | |
1922 | int error; | |
1923 | char *p; | |
428870ff | 1924 | size_t orig_len = strlen(zc->zc_name); |
34dc7c2f | 1925 | |
428870ff BB |
1926 | top: |
1927 | if (error = dmu_objset_hold(zc->zc_name, FTAG, &os)) { | |
34dc7c2f BB |
1928 | if (error == ENOENT) |
1929 | error = ESRCH; | |
1930 | return (error); | |
1931 | } | |
1932 | ||
1933 | p = strrchr(zc->zc_name, '/'); | |
1934 | if (p == NULL || p[1] != '\0') | |
1935 | (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name)); | |
1936 | p = zc->zc_name + strlen(zc->zc_name); | |
1937 | ||
9babb374 BB |
1938 | /* |
1939 | * Pre-fetch the datasets. dmu_objset_prefetch() always returns 0 | |
1940 | * but is not declared void because its called by dmu_objset_find(). | |
1941 | */ | |
d164b209 BB |
1942 | if (zc->zc_cookie == 0) { |
1943 | uint64_t cookie = 0; | |
1944 | int len = sizeof (zc->zc_name) - (p - zc->zc_name); | |
1945 | ||
1946 | while (dmu_dir_list_next(os, len, p, NULL, &cookie) == 0) | |
9babb374 | 1947 | (void) dmu_objset_prefetch(p, NULL); |
d164b209 BB |
1948 | } |
1949 | ||
34dc7c2f BB |
1950 | do { |
1951 | error = dmu_dir_list_next(os, | |
1952 | sizeof (zc->zc_name) - (p - zc->zc_name), p, | |
1953 | NULL, &zc->zc_cookie); | |
1954 | if (error == ENOENT) | |
1955 | error = ESRCH; | |
428870ff BB |
1956 | } while (error == 0 && dataset_name_hidden(zc->zc_name) && |
1957 | !(zc->zc_iflags & FKIOCTL)); | |
1958 | dmu_objset_rele(os, FTAG); | |
34dc7c2f | 1959 | |
428870ff BB |
1960 | /* |
1961 | * If it's an internal dataset (ie. with a '$' in its name), | |
1962 | * don't try to get stats for it, otherwise we'll return ENOENT. | |
1963 | */ | |
1964 | if (error == 0 && strchr(zc->zc_name, '$') == NULL) { | |
34dc7c2f | 1965 | error = zfs_ioc_objset_stats(zc); /* fill in the stats */ |
428870ff BB |
1966 | if (error == ENOENT) { |
1967 | /* We lost a race with destroy, get the next one. */ | |
1968 | zc->zc_name[orig_len] = '\0'; | |
1969 | goto top; | |
1970 | } | |
1971 | } | |
34dc7c2f BB |
1972 | return (error); |
1973 | } | |
1974 | ||
1975 | /* | |
1976 | * inputs: | |
1977 | * zc_name name of filesystem | |
1978 | * zc_cookie zap cursor | |
1979 | * zc_nvlist_dst_size size of buffer for property nvlist | |
1980 | * | |
1981 | * outputs: | |
1982 | * zc_name name of next snapshot | |
1983 | * zc_objset_stats stats | |
1984 | * zc_nvlist_dst property nvlist | |
1985 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
1986 | */ |
1987 | static int | |
1988 | zfs_ioc_snapshot_list_next(zfs_cmd_t *zc) | |
1989 | { | |
1990 | objset_t *os; | |
1991 | int error; | |
1992 | ||
428870ff BB |
1993 | top: |
1994 | if (zc->zc_cookie == 0) | |
1995 | (void) dmu_objset_find(zc->zc_name, dmu_objset_prefetch, | |
1996 | NULL, DS_FIND_SNAPSHOTS); | |
1997 | ||
1998 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
b128c09f BB |
1999 | if (error) |
2000 | return (error == ENOENT ? ESRCH : error); | |
34dc7c2f BB |
2001 | |
2002 | /* | |
2003 | * A dataset name of maximum length cannot have any snapshots, | |
2004 | * so exit immediately. | |
2005 | */ | |
2006 | if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= MAXNAMELEN) { | |
428870ff | 2007 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
2008 | return (ESRCH); |
2009 | } | |
2010 | ||
2011 | error = dmu_snapshot_list_next(os, | |
2012 | sizeof (zc->zc_name) - strlen(zc->zc_name), | |
572e2857 BB |
2013 | zc->zc_name + strlen(zc->zc_name), &zc->zc_obj, &zc->zc_cookie, |
2014 | NULL); | |
2015 | ||
428870ff | 2016 | if (error == 0) { |
572e2857 BB |
2017 | dsl_dataset_t *ds; |
2018 | dsl_pool_t *dp = os->os_dsl_dataset->ds_dir->dd_pool; | |
2019 | ||
2020 | /* | |
2021 | * Since we probably don't have a hold on this snapshot, | |
2022 | * it's possible that the objsetid could have been destroyed | |
2023 | * and reused for a new objset. It's OK if this happens during | |
2024 | * a zfs send operation, since the new createtxg will be | |
2025 | * beyond the range we're interested in. | |
2026 | */ | |
2027 | rw_enter(&dp->dp_config_rwlock, RW_READER); | |
2028 | error = dsl_dataset_hold_obj(dp, zc->zc_obj, FTAG, &ds); | |
2029 | rw_exit(&dp->dp_config_rwlock); | |
2030 | if (error) { | |
2031 | if (error == ENOENT) { | |
2032 | /* Racing with destroy, get the next one. */ | |
2033 | *strchr(zc->zc_name, '@') = '\0'; | |
2034 | dmu_objset_rele(os, FTAG); | |
2035 | goto top; | |
2036 | } | |
2037 | } else { | |
2038 | objset_t *ossnap; | |
2039 | ||
2040 | error = dmu_objset_from_ds(ds, &ossnap); | |
2041 | if (error == 0) | |
2042 | error = zfs_ioc_objset_stats_impl(zc, ossnap); | |
2043 | dsl_dataset_rele(ds, FTAG); | |
428870ff BB |
2044 | } |
2045 | } else if (error == ENOENT) { | |
b128c09f | 2046 | error = ESRCH; |
428870ff | 2047 | } |
34dc7c2f | 2048 | |
572e2857 | 2049 | dmu_objset_rele(os, FTAG); |
34dc7c2f | 2050 | /* if we failed, undo the @ that we tacked on to zc_name */ |
b128c09f | 2051 | if (error) |
34dc7c2f | 2052 | *strchr(zc->zc_name, '@') = '\0'; |
34dc7c2f BB |
2053 | return (error); |
2054 | } | |
2055 | ||
428870ff BB |
2056 | static int |
2057 | zfs_prop_set_userquota(const char *dsname, nvpair_t *pair) | |
34dc7c2f | 2058 | { |
428870ff BB |
2059 | const char *propname = nvpair_name(pair); |
2060 | uint64_t *valary; | |
2061 | unsigned int vallen; | |
2062 | const char *domain; | |
2063 | char *dash; | |
2064 | zfs_userquota_prop_t type; | |
2065 | uint64_t rid; | |
2066 | uint64_t quota; | |
2067 | zfsvfs_t *zfsvfs; | |
2068 | int err; | |
2069 | ||
2070 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2071 | nvlist_t *attrs; | |
2072 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2073 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2074 | &pair) != 0) | |
2075 | return (EINVAL); | |
2076 | } | |
34dc7c2f BB |
2077 | |
2078 | /* | |
428870ff BB |
2079 | * A correctly constructed propname is encoded as |
2080 | * userquota@<rid>-<domain>. | |
34dc7c2f | 2081 | */ |
428870ff BB |
2082 | if ((dash = strchr(propname, '-')) == NULL || |
2083 | nvpair_value_uint64_array(pair, &valary, &vallen) != 0 || | |
2084 | vallen != 3) | |
2085 | return (EINVAL); | |
34dc7c2f | 2086 | |
428870ff BB |
2087 | domain = dash + 1; |
2088 | type = valary[0]; | |
2089 | rid = valary[1]; | |
2090 | quota = valary[2]; | |
34dc7c2f | 2091 | |
572e2857 | 2092 | err = zfsvfs_hold(dsname, FTAG, &zfsvfs, B_FALSE); |
428870ff BB |
2093 | if (err == 0) { |
2094 | err = zfs_set_userquota(zfsvfs, type, domain, rid, quota); | |
2095 | zfsvfs_rele(zfsvfs, FTAG); | |
2096 | } | |
9babb374 | 2097 | |
428870ff BB |
2098 | return (err); |
2099 | } | |
34dc7c2f | 2100 | |
428870ff BB |
2101 | /* |
2102 | * If the named property is one that has a special function to set its value, | |
2103 | * return 0 on success and a positive error code on failure; otherwise if it is | |
2104 | * not one of the special properties handled by this function, return -1. | |
2105 | * | |
2106 | * XXX: It would be better for callers of the property interface if we handled | |
2107 | * these special cases in dsl_prop.c (in the dsl layer). | |
2108 | */ | |
2109 | static int | |
2110 | zfs_prop_set_special(const char *dsname, zprop_source_t source, | |
2111 | nvpair_t *pair) | |
2112 | { | |
2113 | const char *propname = nvpair_name(pair); | |
2114 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2115 | uint64_t intval; | |
2116 | int err; | |
9babb374 | 2117 | |
428870ff BB |
2118 | if (prop == ZPROP_INVAL) { |
2119 | if (zfs_prop_userquota(propname)) | |
2120 | return (zfs_prop_set_userquota(dsname, pair)); | |
2121 | return (-1); | |
2122 | } | |
34dc7c2f | 2123 | |
428870ff BB |
2124 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { |
2125 | nvlist_t *attrs; | |
2126 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2127 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2128 | &pair) == 0); | |
2129 | } | |
b128c09f | 2130 | |
428870ff BB |
2131 | if (zfs_prop_get_type(prop) == PROP_TYPE_STRING) |
2132 | return (-1); | |
34dc7c2f | 2133 | |
428870ff | 2134 | VERIFY(0 == nvpair_value_uint64(pair, &intval)); |
34dc7c2f | 2135 | |
428870ff BB |
2136 | switch (prop) { |
2137 | case ZFS_PROP_QUOTA: | |
2138 | err = dsl_dir_set_quota(dsname, source, intval); | |
2139 | break; | |
2140 | case ZFS_PROP_REFQUOTA: | |
2141 | err = dsl_dataset_set_quota(dsname, source, intval); | |
2142 | break; | |
2143 | case ZFS_PROP_RESERVATION: | |
2144 | err = dsl_dir_set_reservation(dsname, source, intval); | |
2145 | break; | |
2146 | case ZFS_PROP_REFRESERVATION: | |
2147 | err = dsl_dataset_set_reservation(dsname, source, intval); | |
2148 | break; | |
2149 | case ZFS_PROP_VOLSIZE: | |
2150 | err = zvol_set_volsize(dsname, ddi_driver_major(zfs_dip), | |
2151 | intval); | |
2152 | break; | |
2153 | case ZFS_PROP_VERSION: | |
2154 | { | |
2155 | zfsvfs_t *zfsvfs; | |
2156 | ||
572e2857 | 2157 | if ((err = zfsvfs_hold(dsname, FTAG, &zfsvfs, B_TRUE)) != 0) |
34dc7c2f | 2158 | break; |
b128c09f | 2159 | |
428870ff BB |
2160 | err = zfs_set_version(zfsvfs, intval); |
2161 | zfsvfs_rele(zfsvfs, FTAG); | |
34dc7c2f | 2162 | |
428870ff BB |
2163 | if (err == 0 && intval >= ZPL_VERSION_USERSPACE) { |
2164 | zfs_cmd_t *zc; | |
34dc7c2f | 2165 | |
428870ff BB |
2166 | zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); |
2167 | (void) strcpy(zc->zc_name, dsname); | |
2168 | (void) zfs_ioc_userspace_upgrade(zc); | |
2169 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
34dc7c2f | 2170 | } |
428870ff BB |
2171 | break; |
2172 | } | |
34dc7c2f | 2173 | |
428870ff BB |
2174 | default: |
2175 | err = -1; | |
2176 | } | |
34dc7c2f | 2177 | |
428870ff BB |
2178 | return (err); |
2179 | } | |
34dc7c2f | 2180 | |
428870ff BB |
2181 | /* |
2182 | * This function is best effort. If it fails to set any of the given properties, | |
2183 | * it continues to set as many as it can and returns the first error | |
2184 | * encountered. If the caller provides a non-NULL errlist, it also gives the | |
2185 | * complete list of names of all the properties it failed to set along with the | |
2186 | * corresponding error numbers. The caller is responsible for freeing the | |
2187 | * returned errlist. | |
2188 | * | |
2189 | * If every property is set successfully, zero is returned and the list pointed | |
2190 | * at by errlist is NULL. | |
2191 | */ | |
2192 | int | |
2193 | zfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl, | |
2194 | nvlist_t **errlist) | |
2195 | { | |
2196 | nvpair_t *pair; | |
2197 | nvpair_t *propval; | |
2198 | int rv = 0; | |
2199 | uint64_t intval; | |
2200 | char *strval; | |
2201 | nvlist_t *genericnvl; | |
2202 | nvlist_t *errors; | |
2203 | nvlist_t *retrynvl; | |
34dc7c2f | 2204 | |
428870ff BB |
2205 | VERIFY(nvlist_alloc(&genericnvl, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
2206 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2207 | VERIFY(nvlist_alloc(&retrynvl, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
34dc7c2f | 2208 | |
428870ff BB |
2209 | retry: |
2210 | pair = NULL; | |
2211 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { | |
2212 | const char *propname = nvpair_name(pair); | |
2213 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2214 | int err = 0; | |
2215 | ||
2216 | /* decode the property value */ | |
2217 | propval = pair; | |
2218 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2219 | nvlist_t *attrs; | |
2220 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2221 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2222 | &propval) != 0) | |
2223 | err = EINVAL; | |
9babb374 | 2224 | } |
34dc7c2f | 2225 | |
428870ff BB |
2226 | /* Validate value type */ |
2227 | if (err == 0 && prop == ZPROP_INVAL) { | |
2228 | if (zfs_prop_user(propname)) { | |
2229 | if (nvpair_type(propval) != DATA_TYPE_STRING) | |
2230 | err = EINVAL; | |
2231 | } else if (zfs_prop_userquota(propname)) { | |
2232 | if (nvpair_type(propval) != | |
2233 | DATA_TYPE_UINT64_ARRAY) | |
2234 | err = EINVAL; | |
2235 | } | |
2236 | } else if (err == 0) { | |
2237 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
2238 | if (zfs_prop_get_type(prop) != PROP_TYPE_STRING) | |
2239 | err = EINVAL; | |
2240 | } else if (nvpair_type(propval) == DATA_TYPE_UINT64) { | |
34dc7c2f BB |
2241 | const char *unused; |
2242 | ||
428870ff BB |
2243 | VERIFY(nvpair_value_uint64(propval, |
2244 | &intval) == 0); | |
34dc7c2f BB |
2245 | |
2246 | switch (zfs_prop_get_type(prop)) { | |
2247 | case PROP_TYPE_NUMBER: | |
2248 | break; | |
2249 | case PROP_TYPE_STRING: | |
428870ff BB |
2250 | err = EINVAL; |
2251 | break; | |
34dc7c2f BB |
2252 | case PROP_TYPE_INDEX: |
2253 | if (zfs_prop_index_to_string(prop, | |
428870ff BB |
2254 | intval, &unused) != 0) |
2255 | err = EINVAL; | |
34dc7c2f BB |
2256 | break; |
2257 | default: | |
2258 | cmn_err(CE_PANIC, | |
2259 | "unknown property type"); | |
34dc7c2f | 2260 | } |
34dc7c2f | 2261 | } else { |
428870ff | 2262 | err = EINVAL; |
34dc7c2f | 2263 | } |
34dc7c2f | 2264 | } |
428870ff BB |
2265 | |
2266 | /* Validate permissions */ | |
2267 | if (err == 0) | |
2268 | err = zfs_check_settable(dsname, pair, CRED()); | |
2269 | ||
2270 | if (err == 0) { | |
2271 | err = zfs_prop_set_special(dsname, source, pair); | |
2272 | if (err == -1) { | |
2273 | /* | |
2274 | * For better performance we build up a list of | |
2275 | * properties to set in a single transaction. | |
2276 | */ | |
2277 | err = nvlist_add_nvpair(genericnvl, pair); | |
2278 | } else if (err != 0 && nvl != retrynvl) { | |
2279 | /* | |
2280 | * This may be a spurious error caused by | |
2281 | * receiving quota and reservation out of order. | |
2282 | * Try again in a second pass. | |
2283 | */ | |
2284 | err = nvlist_add_nvpair(retrynvl, pair); | |
2285 | } | |
2286 | } | |
2287 | ||
2288 | if (err != 0) | |
2289 | VERIFY(nvlist_add_int32(errors, propname, err) == 0); | |
34dc7c2f BB |
2290 | } |
2291 | ||
428870ff BB |
2292 | if (nvl != retrynvl && !nvlist_empty(retrynvl)) { |
2293 | nvl = retrynvl; | |
2294 | goto retry; | |
2295 | } | |
2296 | ||
2297 | if (!nvlist_empty(genericnvl) && | |
2298 | dsl_props_set(dsname, source, genericnvl) != 0) { | |
2299 | /* | |
2300 | * If this fails, we still want to set as many properties as we | |
2301 | * can, so try setting them individually. | |
2302 | */ | |
2303 | pair = NULL; | |
2304 | while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) { | |
2305 | const char *propname = nvpair_name(pair); | |
2306 | int err = 0; | |
2307 | ||
2308 | propval = pair; | |
2309 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2310 | nvlist_t *attrs; | |
2311 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2312 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2313 | &propval) == 0); | |
2314 | } | |
2315 | ||
2316 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
2317 | VERIFY(nvpair_value_string(propval, | |
2318 | &strval) == 0); | |
2319 | err = dsl_prop_set(dsname, propname, source, 1, | |
2320 | strlen(strval) + 1, strval); | |
2321 | } else { | |
2322 | VERIFY(nvpair_value_uint64(propval, | |
2323 | &intval) == 0); | |
2324 | err = dsl_prop_set(dsname, propname, source, 8, | |
2325 | 1, &intval); | |
2326 | } | |
2327 | ||
2328 | if (err != 0) { | |
2329 | VERIFY(nvlist_add_int32(errors, propname, | |
2330 | err) == 0); | |
2331 | } | |
2332 | } | |
9babb374 | 2333 | } |
9babb374 | 2334 | nvlist_free(genericnvl); |
428870ff BB |
2335 | nvlist_free(retrynvl); |
2336 | ||
2337 | if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) { | |
2338 | nvlist_free(errors); | |
2339 | errors = NULL; | |
2340 | } else { | |
2341 | VERIFY(nvpair_value_int32(pair, &rv) == 0); | |
2342 | } | |
2343 | ||
2344 | if (errlist == NULL) | |
2345 | nvlist_free(errors); | |
2346 | else | |
2347 | *errlist = errors; | |
2348 | ||
2349 | return (rv); | |
9babb374 BB |
2350 | } |
2351 | ||
2352 | /* | |
2353 | * Check that all the properties are valid user properties. | |
2354 | */ | |
2355 | static int | |
2356 | zfs_check_userprops(char *fsname, nvlist_t *nvl) | |
2357 | { | |
428870ff | 2358 | nvpair_t *pair = NULL; |
9babb374 BB |
2359 | int error = 0; |
2360 | ||
428870ff BB |
2361 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { |
2362 | const char *propname = nvpair_name(pair); | |
9babb374 BB |
2363 | char *valstr; |
2364 | ||
2365 | if (!zfs_prop_user(propname) || | |
428870ff | 2366 | nvpair_type(pair) != DATA_TYPE_STRING) |
9babb374 BB |
2367 | return (EINVAL); |
2368 | ||
2369 | if (error = zfs_secpolicy_write_perms(fsname, | |
2370 | ZFS_DELEG_PERM_USERPROP, CRED())) | |
2371 | return (error); | |
2372 | ||
2373 | if (strlen(propname) >= ZAP_MAXNAMELEN) | |
2374 | return (ENAMETOOLONG); | |
2375 | ||
428870ff | 2376 | VERIFY(nvpair_value_string(pair, &valstr) == 0); |
9babb374 BB |
2377 | if (strlen(valstr) >= ZAP_MAXVALUELEN) |
2378 | return (E2BIG); | |
2379 | } | |
34dc7c2f BB |
2380 | return (0); |
2381 | } | |
2382 | ||
428870ff BB |
2383 | static void |
2384 | props_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops) | |
2385 | { | |
2386 | nvpair_t *pair; | |
2387 | ||
2388 | VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2389 | ||
2390 | pair = NULL; | |
2391 | while ((pair = nvlist_next_nvpair(props, pair)) != NULL) { | |
2392 | if (nvlist_exists(skipped, nvpair_name(pair))) | |
2393 | continue; | |
2394 | ||
2395 | VERIFY(nvlist_add_nvpair(*newprops, pair) == 0); | |
2396 | } | |
2397 | } | |
2398 | ||
2399 | static int | |
2400 | clear_received_props(objset_t *os, const char *fs, nvlist_t *props, | |
2401 | nvlist_t *skipped) | |
2402 | { | |
2403 | int err = 0; | |
2404 | nvlist_t *cleared_props = NULL; | |
2405 | props_skip(props, skipped, &cleared_props); | |
2406 | if (!nvlist_empty(cleared_props)) { | |
2407 | /* | |
2408 | * Acts on local properties until the dataset has received | |
2409 | * properties at least once on or after SPA_VERSION_RECVD_PROPS. | |
2410 | */ | |
2411 | zprop_source_t flags = (ZPROP_SRC_NONE | | |
2412 | (dsl_prop_get_hasrecvd(os) ? ZPROP_SRC_RECEIVED : 0)); | |
2413 | err = zfs_set_prop_nvlist(fs, flags, cleared_props, NULL); | |
2414 | } | |
2415 | nvlist_free(cleared_props); | |
2416 | return (err); | |
2417 | } | |
2418 | ||
34dc7c2f BB |
2419 | /* |
2420 | * inputs: | |
2421 | * zc_name name of filesystem | |
9babb374 | 2422 | * zc_value name of property to set |
34dc7c2f | 2423 | * zc_nvlist_src{_size} nvlist of properties to apply |
428870ff | 2424 | * zc_cookie received properties flag |
34dc7c2f | 2425 | * |
428870ff BB |
2426 | * outputs: |
2427 | * zc_nvlist_dst{_size} error for each unapplied received property | |
34dc7c2f BB |
2428 | */ |
2429 | static int | |
2430 | zfs_ioc_set_prop(zfs_cmd_t *zc) | |
2431 | { | |
2432 | nvlist_t *nvl; | |
428870ff BB |
2433 | boolean_t received = zc->zc_cookie; |
2434 | zprop_source_t source = (received ? ZPROP_SRC_RECEIVED : | |
2435 | ZPROP_SRC_LOCAL); | |
2436 | nvlist_t *errors = NULL; | |
34dc7c2f BB |
2437 | int error; |
2438 | ||
2439 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2440 | zc->zc_iflags, &nvl)) != 0) |
34dc7c2f BB |
2441 | return (error); |
2442 | ||
428870ff | 2443 | if (received) { |
b128c09f BB |
2444 | nvlist_t *origprops; |
2445 | objset_t *os; | |
2446 | ||
428870ff BB |
2447 | if (dmu_objset_hold(zc->zc_name, FTAG, &os) == 0) { |
2448 | if (dsl_prop_get_received(os, &origprops) == 0) { | |
2449 | (void) clear_received_props(os, | |
2450 | zc->zc_name, origprops, nvl); | |
b128c09f BB |
2451 | nvlist_free(origprops); |
2452 | } | |
b128c09f | 2453 | |
428870ff BB |
2454 | dsl_prop_set_hasrecvd(os); |
2455 | dmu_objset_rele(os, FTAG); | |
2456 | } | |
b128c09f BB |
2457 | } |
2458 | ||
428870ff | 2459 | error = zfs_set_prop_nvlist(zc->zc_name, source, nvl, &errors); |
34dc7c2f | 2460 | |
428870ff BB |
2461 | if (zc->zc_nvlist_dst != NULL && errors != NULL) { |
2462 | (void) put_nvlist(zc, errors); | |
2463 | } | |
2464 | ||
2465 | nvlist_free(errors); | |
34dc7c2f BB |
2466 | nvlist_free(nvl); |
2467 | return (error); | |
2468 | } | |
2469 | ||
2470 | /* | |
2471 | * inputs: | |
2472 | * zc_name name of filesystem | |
2473 | * zc_value name of property to inherit | |
428870ff | 2474 | * zc_cookie revert to received value if TRUE |
34dc7c2f BB |
2475 | * |
2476 | * outputs: none | |
2477 | */ | |
2478 | static int | |
2479 | zfs_ioc_inherit_prop(zfs_cmd_t *zc) | |
2480 | { | |
428870ff BB |
2481 | const char *propname = zc->zc_value; |
2482 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2483 | boolean_t received = zc->zc_cookie; | |
2484 | zprop_source_t source = (received | |
2485 | ? ZPROP_SRC_NONE /* revert to received value, if any */ | |
2486 | : ZPROP_SRC_INHERITED); /* explicitly inherit */ | |
2487 | ||
2488 | if (received) { | |
2489 | nvlist_t *dummy; | |
2490 | nvpair_t *pair; | |
2491 | zprop_type_t type; | |
2492 | int err; | |
2493 | ||
2494 | /* | |
2495 | * zfs_prop_set_special() expects properties in the form of an | |
2496 | * nvpair with type info. | |
2497 | */ | |
2498 | if (prop == ZPROP_INVAL) { | |
2499 | if (!zfs_prop_user(propname)) | |
2500 | return (EINVAL); | |
2501 | ||
2502 | type = PROP_TYPE_STRING; | |
2503 | } else if (prop == ZFS_PROP_VOLSIZE || | |
2504 | prop == ZFS_PROP_VERSION) { | |
2505 | return (EINVAL); | |
2506 | } else { | |
2507 | type = zfs_prop_get_type(prop); | |
2508 | } | |
2509 | ||
2510 | VERIFY(nvlist_alloc(&dummy, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2511 | ||
2512 | switch (type) { | |
2513 | case PROP_TYPE_STRING: | |
2514 | VERIFY(0 == nvlist_add_string(dummy, propname, "")); | |
2515 | break; | |
2516 | case PROP_TYPE_NUMBER: | |
2517 | case PROP_TYPE_INDEX: | |
2518 | VERIFY(0 == nvlist_add_uint64(dummy, propname, 0)); | |
2519 | break; | |
2520 | default: | |
2521 | nvlist_free(dummy); | |
2522 | return (EINVAL); | |
2523 | } | |
2524 | ||
2525 | pair = nvlist_next_nvpair(dummy, NULL); | |
2526 | err = zfs_prop_set_special(zc->zc_name, source, pair); | |
2527 | nvlist_free(dummy); | |
2528 | if (err != -1) | |
2529 | return (err); /* special property already handled */ | |
2530 | } else { | |
2531 | /* | |
2532 | * Only check this in the non-received case. We want to allow | |
2533 | * 'inherit -S' to revert non-inheritable properties like quota | |
2534 | * and reservation to the received or default values even though | |
2535 | * they are not considered inheritable. | |
2536 | */ | |
2537 | if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop)) | |
2538 | return (EINVAL); | |
2539 | } | |
2540 | ||
34dc7c2f | 2541 | /* the property name has been validated by zfs_secpolicy_inherit() */ |
428870ff | 2542 | return (dsl_prop_set(zc->zc_name, zc->zc_value, source, 0, 0, NULL)); |
34dc7c2f BB |
2543 | } |
2544 | ||
2545 | static int | |
2546 | zfs_ioc_pool_set_props(zfs_cmd_t *zc) | |
2547 | { | |
2548 | nvlist_t *props; | |
2549 | spa_t *spa; | |
2550 | int error; | |
428870ff | 2551 | nvpair_t *pair; |
34dc7c2f | 2552 | |
428870ff BB |
2553 | if (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
2554 | zc->zc_iflags, &props)) | |
34dc7c2f BB |
2555 | return (error); |
2556 | ||
d164b209 BB |
2557 | /* |
2558 | * If the only property is the configfile, then just do a spa_lookup() | |
2559 | * to handle the faulted case. | |
2560 | */ | |
428870ff BB |
2561 | pair = nvlist_next_nvpair(props, NULL); |
2562 | if (pair != NULL && strcmp(nvpair_name(pair), | |
d164b209 | 2563 | zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 && |
428870ff | 2564 | nvlist_next_nvpair(props, pair) == NULL) { |
d164b209 BB |
2565 | mutex_enter(&spa_namespace_lock); |
2566 | if ((spa = spa_lookup(zc->zc_name)) != NULL) { | |
2567 | spa_configfile_set(spa, props, B_FALSE); | |
2568 | spa_config_sync(spa, B_FALSE, B_TRUE); | |
2569 | } | |
2570 | mutex_exit(&spa_namespace_lock); | |
428870ff BB |
2571 | if (spa != NULL) { |
2572 | nvlist_free(props); | |
d164b209 | 2573 | return (0); |
428870ff | 2574 | } |
d164b209 BB |
2575 | } |
2576 | ||
34dc7c2f BB |
2577 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2578 | nvlist_free(props); | |
2579 | return (error); | |
2580 | } | |
2581 | ||
2582 | error = spa_prop_set(spa, props); | |
2583 | ||
2584 | nvlist_free(props); | |
2585 | spa_close(spa, FTAG); | |
2586 | ||
2587 | return (error); | |
2588 | } | |
2589 | ||
2590 | static int | |
2591 | zfs_ioc_pool_get_props(zfs_cmd_t *zc) | |
2592 | { | |
2593 | spa_t *spa; | |
2594 | int error; | |
2595 | nvlist_t *nvp = NULL; | |
2596 | ||
d164b209 BB |
2597 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2598 | /* | |
2599 | * If the pool is faulted, there may be properties we can still | |
2600 | * get (such as altroot and cachefile), so attempt to get them | |
2601 | * anyway. | |
2602 | */ | |
2603 | mutex_enter(&spa_namespace_lock); | |
2604 | if ((spa = spa_lookup(zc->zc_name)) != NULL) | |
2605 | error = spa_prop_get(spa, &nvp); | |
2606 | mutex_exit(&spa_namespace_lock); | |
2607 | } else { | |
2608 | error = spa_prop_get(spa, &nvp); | |
2609 | spa_close(spa, FTAG); | |
2610 | } | |
34dc7c2f BB |
2611 | |
2612 | if (error == 0 && zc->zc_nvlist_dst != NULL) | |
2613 | error = put_nvlist(zc, nvp); | |
2614 | else | |
2615 | error = EFAULT; | |
2616 | ||
d164b209 | 2617 | nvlist_free(nvp); |
34dc7c2f BB |
2618 | return (error); |
2619 | } | |
2620 | ||
34dc7c2f BB |
2621 | /* |
2622 | * inputs: | |
2623 | * zc_name name of filesystem | |
2624 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
2625 | * zc_perm_action allow/unallow flag | |
2626 | * | |
2627 | * outputs: none | |
2628 | */ | |
2629 | static int | |
2630 | zfs_ioc_set_fsacl(zfs_cmd_t *zc) | |
2631 | { | |
2632 | int error; | |
2633 | nvlist_t *fsaclnv = NULL; | |
2634 | ||
2635 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2636 | zc->zc_iflags, &fsaclnv)) != 0) |
34dc7c2f BB |
2637 | return (error); |
2638 | ||
2639 | /* | |
2640 | * Verify nvlist is constructed correctly | |
2641 | */ | |
2642 | if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) { | |
2643 | nvlist_free(fsaclnv); | |
2644 | return (EINVAL); | |
2645 | } | |
2646 | ||
2647 | /* | |
2648 | * If we don't have PRIV_SYS_MOUNT, then validate | |
2649 | * that user is allowed to hand out each permission in | |
2650 | * the nvlist(s) | |
2651 | */ | |
2652 | ||
2653 | error = secpolicy_zfs(CRED()); | |
2654 | if (error) { | |
2655 | if (zc->zc_perm_action == B_FALSE) { | |
2656 | error = dsl_deleg_can_allow(zc->zc_name, | |
2657 | fsaclnv, CRED()); | |
2658 | } else { | |
2659 | error = dsl_deleg_can_unallow(zc->zc_name, | |
2660 | fsaclnv, CRED()); | |
2661 | } | |
2662 | } | |
2663 | ||
2664 | if (error == 0) | |
2665 | error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action); | |
2666 | ||
2667 | nvlist_free(fsaclnv); | |
2668 | return (error); | |
2669 | } | |
2670 | ||
2671 | /* | |
2672 | * inputs: | |
2673 | * zc_name name of filesystem | |
2674 | * | |
2675 | * outputs: | |
2676 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
2677 | */ | |
2678 | static int | |
2679 | zfs_ioc_get_fsacl(zfs_cmd_t *zc) | |
2680 | { | |
2681 | nvlist_t *nvp; | |
2682 | int error; | |
2683 | ||
2684 | if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) { | |
2685 | error = put_nvlist(zc, nvp); | |
2686 | nvlist_free(nvp); | |
2687 | } | |
2688 | ||
2689 | return (error); | |
2690 | } | |
2691 | ||
34dc7c2f BB |
2692 | /* |
2693 | * Search the vfs list for a specified resource. Returns a pointer to it | |
2694 | * or NULL if no suitable entry is found. The caller of this routine | |
2695 | * is responsible for releasing the returned vfs pointer. | |
2696 | */ | |
2697 | static vfs_t * | |
2698 | zfs_get_vfs(const char *resource) | |
2699 | { | |
2700 | struct vfs *vfsp; | |
2701 | struct vfs *vfs_found = NULL; | |
2702 | ||
2703 | vfs_list_read_lock(); | |
2704 | vfsp = rootvfs; | |
2705 | do { | |
2706 | if (strcmp(refstr_value(vfsp->vfs_resource), resource) == 0) { | |
2707 | VFS_HOLD(vfsp); | |
2708 | vfs_found = vfsp; | |
2709 | break; | |
2710 | } | |
2711 | vfsp = vfsp->vfs_next; | |
2712 | } while (vfsp != rootvfs); | |
2713 | vfs_list_unlock(); | |
2714 | return (vfs_found); | |
2715 | } | |
2716 | ||
2717 | /* ARGSUSED */ | |
2718 | static void | |
2719 | zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx) | |
2720 | { | |
2721 | zfs_creat_t *zct = arg; | |
2722 | ||
2723 | zfs_create_fs(os, cr, zct->zct_zplprops, tx); | |
2724 | } | |
2725 | ||
2726 | #define ZFS_PROP_UNDEFINED ((uint64_t)-1) | |
2727 | ||
2728 | /* | |
2729 | * inputs: | |
b128c09f BB |
2730 | * createprops list of properties requested by creator |
2731 | * default_zplver zpl version to use if unspecified in createprops | |
2732 | * fuids_ok fuids allowed in this version of the spa? | |
2733 | * os parent objset pointer (NULL if root fs) | |
34dc7c2f BB |
2734 | * |
2735 | * outputs: | |
2736 | * zplprops values for the zplprops we attach to the master node object | |
b128c09f | 2737 | * is_ci true if requested file system will be purely case-insensitive |
34dc7c2f BB |
2738 | * |
2739 | * Determine the settings for utf8only, normalization and | |
2740 | * casesensitivity. Specific values may have been requested by the | |
2741 | * creator and/or we can inherit values from the parent dataset. If | |
2742 | * the file system is of too early a vintage, a creator can not | |
2743 | * request settings for these properties, even if the requested | |
2744 | * setting is the default value. We don't actually want to create dsl | |
2745 | * properties for these, so remove them from the source nvlist after | |
2746 | * processing. | |
2747 | */ | |
2748 | static int | |
9babb374 | 2749 | zfs_fill_zplprops_impl(objset_t *os, uint64_t zplver, |
428870ff BB |
2750 | boolean_t fuids_ok, boolean_t sa_ok, nvlist_t *createprops, |
2751 | nvlist_t *zplprops, boolean_t *is_ci) | |
34dc7c2f | 2752 | { |
34dc7c2f BB |
2753 | uint64_t sense = ZFS_PROP_UNDEFINED; |
2754 | uint64_t norm = ZFS_PROP_UNDEFINED; | |
2755 | uint64_t u8 = ZFS_PROP_UNDEFINED; | |
34dc7c2f BB |
2756 | |
2757 | ASSERT(zplprops != NULL); | |
2758 | ||
34dc7c2f BB |
2759 | /* |
2760 | * Pull out creator prop choices, if any. | |
2761 | */ | |
2762 | if (createprops) { | |
b128c09f BB |
2763 | (void) nvlist_lookup_uint64(createprops, |
2764 | zfs_prop_to_name(ZFS_PROP_VERSION), &zplver); | |
34dc7c2f BB |
2765 | (void) nvlist_lookup_uint64(createprops, |
2766 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm); | |
2767 | (void) nvlist_remove_all(createprops, | |
2768 | zfs_prop_to_name(ZFS_PROP_NORMALIZE)); | |
2769 | (void) nvlist_lookup_uint64(createprops, | |
2770 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8); | |
2771 | (void) nvlist_remove_all(createprops, | |
2772 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); | |
2773 | (void) nvlist_lookup_uint64(createprops, | |
2774 | zfs_prop_to_name(ZFS_PROP_CASE), &sense); | |
2775 | (void) nvlist_remove_all(createprops, | |
2776 | zfs_prop_to_name(ZFS_PROP_CASE)); | |
2777 | } | |
2778 | ||
2779 | /* | |
b128c09f BB |
2780 | * If the zpl version requested is whacky or the file system |
2781 | * or pool is version is too "young" to support normalization | |
2782 | * and the creator tried to set a value for one of the props, | |
2783 | * error out. | |
34dc7c2f | 2784 | */ |
b128c09f BB |
2785 | if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) || |
2786 | (zplver >= ZPL_VERSION_FUID && !fuids_ok) || | |
428870ff | 2787 | (zplver >= ZPL_VERSION_SA && !sa_ok) || |
b128c09f | 2788 | (zplver < ZPL_VERSION_NORMALIZATION && |
34dc7c2f | 2789 | (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED || |
b128c09f | 2790 | sense != ZFS_PROP_UNDEFINED))) |
34dc7c2f BB |
2791 | return (ENOTSUP); |
2792 | ||
2793 | /* | |
2794 | * Put the version in the zplprops | |
2795 | */ | |
2796 | VERIFY(nvlist_add_uint64(zplprops, | |
2797 | zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0); | |
2798 | ||
34dc7c2f BB |
2799 | if (norm == ZFS_PROP_UNDEFINED) |
2800 | VERIFY(zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm) == 0); | |
2801 | VERIFY(nvlist_add_uint64(zplprops, | |
2802 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0); | |
2803 | ||
2804 | /* | |
2805 | * If we're normalizing, names must always be valid UTF-8 strings. | |
2806 | */ | |
2807 | if (norm) | |
2808 | u8 = 1; | |
2809 | if (u8 == ZFS_PROP_UNDEFINED) | |
2810 | VERIFY(zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8) == 0); | |
2811 | VERIFY(nvlist_add_uint64(zplprops, | |
2812 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0); | |
2813 | ||
2814 | if (sense == ZFS_PROP_UNDEFINED) | |
2815 | VERIFY(zfs_get_zplprop(os, ZFS_PROP_CASE, &sense) == 0); | |
2816 | VERIFY(nvlist_add_uint64(zplprops, | |
2817 | zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0); | |
2818 | ||
2819 | if (is_ci) | |
2820 | *is_ci = (sense == ZFS_CASE_INSENSITIVE); | |
2821 | ||
34dc7c2f BB |
2822 | return (0); |
2823 | } | |
2824 | ||
b128c09f BB |
2825 | static int |
2826 | zfs_fill_zplprops(const char *dataset, nvlist_t *createprops, | |
2827 | nvlist_t *zplprops, boolean_t *is_ci) | |
2828 | { | |
428870ff | 2829 | boolean_t fuids_ok, sa_ok; |
b128c09f BB |
2830 | uint64_t zplver = ZPL_VERSION; |
2831 | objset_t *os = NULL; | |
2832 | char parentname[MAXNAMELEN]; | |
2833 | char *cp; | |
428870ff BB |
2834 | spa_t *spa; |
2835 | uint64_t spa_vers; | |
b128c09f BB |
2836 | int error; |
2837 | ||
2838 | (void) strlcpy(parentname, dataset, sizeof (parentname)); | |
2839 | cp = strrchr(parentname, '/'); | |
2840 | ASSERT(cp != NULL); | |
2841 | cp[0] = '\0'; | |
2842 | ||
428870ff BB |
2843 | if ((error = spa_open(dataset, &spa, FTAG)) != 0) |
2844 | return (error); | |
2845 | ||
2846 | spa_vers = spa_version(spa); | |
2847 | spa_close(spa, FTAG); | |
2848 | ||
2849 | zplver = zfs_zpl_version_map(spa_vers); | |
2850 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
2851 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f BB |
2852 | |
2853 | /* | |
2854 | * Open parent object set so we can inherit zplprop values. | |
2855 | */ | |
428870ff | 2856 | if ((error = dmu_objset_hold(parentname, FTAG, &os)) != 0) |
b128c09f BB |
2857 | return (error); |
2858 | ||
428870ff | 2859 | error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, sa_ok, createprops, |
b128c09f | 2860 | zplprops, is_ci); |
428870ff | 2861 | dmu_objset_rele(os, FTAG); |
b128c09f BB |
2862 | return (error); |
2863 | } | |
2864 | ||
2865 | static int | |
2866 | zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops, | |
2867 | nvlist_t *zplprops, boolean_t *is_ci) | |
2868 | { | |
428870ff BB |
2869 | boolean_t fuids_ok; |
2870 | boolean_t sa_ok; | |
b128c09f BB |
2871 | uint64_t zplver = ZPL_VERSION; |
2872 | int error; | |
2873 | ||
428870ff BB |
2874 | zplver = zfs_zpl_version_map(spa_vers); |
2875 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
2876 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f | 2877 | |
428870ff BB |
2878 | error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, sa_ok, |
2879 | createprops, zplprops, is_ci); | |
b128c09f BB |
2880 | return (error); |
2881 | } | |
2882 | ||
34dc7c2f BB |
2883 | /* |
2884 | * inputs: | |
2885 | * zc_objset_type type of objset to create (fs vs zvol) | |
2886 | * zc_name name of new objset | |
2887 | * zc_value name of snapshot to clone from (may be empty) | |
2888 | * zc_nvlist_src{_size} nvlist of properties to apply | |
2889 | * | |
2890 | * outputs: none | |
2891 | */ | |
2892 | static int | |
2893 | zfs_ioc_create(zfs_cmd_t *zc) | |
2894 | { | |
2895 | objset_t *clone; | |
2896 | int error = 0; | |
2897 | zfs_creat_t zct; | |
2898 | nvlist_t *nvprops = NULL; | |
2899 | void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx); | |
2900 | dmu_objset_type_t type = zc->zc_objset_type; | |
2901 | ||
2902 | switch (type) { | |
2903 | ||
2904 | case DMU_OST_ZFS: | |
2905 | cbfunc = zfs_create_cb; | |
2906 | break; | |
2907 | ||
2908 | case DMU_OST_ZVOL: | |
2909 | cbfunc = zvol_create_cb; | |
2910 | break; | |
2911 | ||
2912 | default: | |
2913 | cbfunc = NULL; | |
2914 | break; | |
2915 | } | |
2916 | if (strchr(zc->zc_name, '@') || | |
2917 | strchr(zc->zc_name, '%')) | |
2918 | return (EINVAL); | |
2919 | ||
2920 | if (zc->zc_nvlist_src != NULL && | |
2921 | (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2922 | zc->zc_iflags, &nvprops)) != 0) |
34dc7c2f BB |
2923 | return (error); |
2924 | ||
2925 | zct.zct_zplprops = NULL; | |
2926 | zct.zct_props = nvprops; | |
2927 | ||
2928 | if (zc->zc_value[0] != '\0') { | |
2929 | /* | |
2930 | * We're creating a clone of an existing snapshot. | |
2931 | */ | |
2932 | zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; | |
2933 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0) { | |
2934 | nvlist_free(nvprops); | |
2935 | return (EINVAL); | |
2936 | } | |
2937 | ||
428870ff | 2938 | error = dmu_objset_hold(zc->zc_value, FTAG, &clone); |
34dc7c2f BB |
2939 | if (error) { |
2940 | nvlist_free(nvprops); | |
2941 | return (error); | |
2942 | } | |
2943 | ||
428870ff BB |
2944 | error = dmu_objset_clone(zc->zc_name, dmu_objset_ds(clone), 0); |
2945 | dmu_objset_rele(clone, FTAG); | |
34dc7c2f | 2946 | if (error) { |
34dc7c2f BB |
2947 | nvlist_free(nvprops); |
2948 | return (error); | |
2949 | } | |
34dc7c2f BB |
2950 | } else { |
2951 | boolean_t is_insensitive = B_FALSE; | |
2952 | ||
2953 | if (cbfunc == NULL) { | |
2954 | nvlist_free(nvprops); | |
2955 | return (EINVAL); | |
2956 | } | |
2957 | ||
2958 | if (type == DMU_OST_ZVOL) { | |
2959 | uint64_t volsize, volblocksize; | |
2960 | ||
2961 | if (nvprops == NULL || | |
2962 | nvlist_lookup_uint64(nvprops, | |
2963 | zfs_prop_to_name(ZFS_PROP_VOLSIZE), | |
2964 | &volsize) != 0) { | |
2965 | nvlist_free(nvprops); | |
2966 | return (EINVAL); | |
2967 | } | |
2968 | ||
2969 | if ((error = nvlist_lookup_uint64(nvprops, | |
2970 | zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
2971 | &volblocksize)) != 0 && error != ENOENT) { | |
2972 | nvlist_free(nvprops); | |
2973 | return (EINVAL); | |
2974 | } | |
2975 | ||
2976 | if (error != 0) | |
2977 | volblocksize = zfs_prop_default_numeric( | |
2978 | ZFS_PROP_VOLBLOCKSIZE); | |
2979 | ||
2980 | if ((error = zvol_check_volblocksize( | |
2981 | volblocksize)) != 0 || | |
2982 | (error = zvol_check_volsize(volsize, | |
2983 | volblocksize)) != 0) { | |
2984 | nvlist_free(nvprops); | |
2985 | return (error); | |
2986 | } | |
2987 | } else if (type == DMU_OST_ZFS) { | |
34dc7c2f BB |
2988 | int error; |
2989 | ||
34dc7c2f BB |
2990 | /* |
2991 | * We have to have normalization and | |
2992 | * case-folding flags correct when we do the | |
2993 | * file system creation, so go figure them out | |
2994 | * now. | |
2995 | */ | |
2996 | VERIFY(nvlist_alloc(&zct.zct_zplprops, | |
2997 | NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2998 | error = zfs_fill_zplprops(zc->zc_name, nvprops, | |
b128c09f | 2999 | zct.zct_zplprops, &is_insensitive); |
34dc7c2f BB |
3000 | if (error != 0) { |
3001 | nvlist_free(nvprops); | |
3002 | nvlist_free(zct.zct_zplprops); | |
3003 | return (error); | |
3004 | } | |
3005 | } | |
428870ff | 3006 | error = dmu_objset_create(zc->zc_name, type, |
34dc7c2f BB |
3007 | is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct); |
3008 | nvlist_free(zct.zct_zplprops); | |
3009 | } | |
3010 | ||
3011 | /* | |
3012 | * It would be nice to do this atomically. | |
3013 | */ | |
3014 | if (error == 0) { | |
428870ff BB |
3015 | error = zfs_set_prop_nvlist(zc->zc_name, ZPROP_SRC_LOCAL, |
3016 | nvprops, NULL); | |
3017 | if (error != 0) | |
45d1cae3 | 3018 | (void) dmu_objset_destroy(zc->zc_name, B_FALSE); |
34dc7c2f BB |
3019 | } |
3020 | nvlist_free(nvprops); | |
3021 | return (error); | |
3022 | } | |
3023 | ||
3024 | /* | |
3025 | * inputs: | |
3026 | * zc_name name of filesystem | |
3027 | * zc_value short name of snapshot | |
3028 | * zc_cookie recursive flag | |
9babb374 | 3029 | * zc_nvlist_src[_size] property list |
34dc7c2f | 3030 | * |
428870ff BB |
3031 | * outputs: |
3032 | * zc_value short snapname (i.e. part after the '@') | |
34dc7c2f BB |
3033 | */ |
3034 | static int | |
3035 | zfs_ioc_snapshot(zfs_cmd_t *zc) | |
3036 | { | |
b128c09f BB |
3037 | nvlist_t *nvprops = NULL; |
3038 | int error; | |
3039 | boolean_t recursive = zc->zc_cookie; | |
3040 | ||
34dc7c2f BB |
3041 | if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0) |
3042 | return (EINVAL); | |
b128c09f BB |
3043 | |
3044 | if (zc->zc_nvlist_src != NULL && | |
3045 | (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 3046 | zc->zc_iflags, &nvprops)) != 0) |
b128c09f BB |
3047 | return (error); |
3048 | ||
9babb374 BB |
3049 | error = zfs_check_userprops(zc->zc_name, nvprops); |
3050 | if (error) | |
3051 | goto out; | |
b128c09f | 3052 | |
428870ff | 3053 | if (!nvlist_empty(nvprops) && |
9babb374 BB |
3054 | zfs_earlier_version(zc->zc_name, SPA_VERSION_SNAP_PROPS)) { |
3055 | error = ENOTSUP; | |
3056 | goto out; | |
b128c09f | 3057 | } |
9babb374 | 3058 | |
572e2857 BB |
3059 | error = dmu_objset_snapshot(zc->zc_name, zc->zc_value, NULL, |
3060 | nvprops, recursive, B_FALSE, -1); | |
9babb374 BB |
3061 | |
3062 | out: | |
b128c09f BB |
3063 | nvlist_free(nvprops); |
3064 | return (error); | |
34dc7c2f BB |
3065 | } |
3066 | ||
3067 | int | |
428870ff | 3068 | zfs_unmount_snap(const char *name, void *arg) |
34dc7c2f | 3069 | { |
34dc7c2f BB |
3070 | vfs_t *vfsp = NULL; |
3071 | ||
b128c09f BB |
3072 | if (arg) { |
3073 | char *snapname = arg; | |
428870ff BB |
3074 | char *fullname = kmem_asprintf("%s@%s", name, snapname); |
3075 | vfsp = zfs_get_vfs(fullname); | |
3076 | strfree(fullname); | |
34dc7c2f BB |
3077 | } else if (strchr(name, '@')) { |
3078 | vfsp = zfs_get_vfs(name); | |
3079 | } | |
3080 | ||
3081 | if (vfsp) { | |
3082 | /* | |
3083 | * Always force the unmount for snapshots. | |
3084 | */ | |
3085 | int flag = MS_FORCE; | |
3086 | int err; | |
3087 | ||
3088 | if ((err = vn_vfswlock(vfsp->vfs_vnodecovered)) != 0) { | |
3089 | VFS_RELE(vfsp); | |
3090 | return (err); | |
3091 | } | |
3092 | VFS_RELE(vfsp); | |
3093 | if ((err = dounmount(vfsp, flag, kcred)) != 0) | |
3094 | return (err); | |
3095 | } | |
3096 | return (0); | |
3097 | } | |
3098 | ||
3099 | /* | |
3100 | * inputs: | |
45d1cae3 BB |
3101 | * zc_name name of filesystem |
3102 | * zc_value short name of snapshot | |
3103 | * zc_defer_destroy mark for deferred destroy | |
34dc7c2f BB |
3104 | * |
3105 | * outputs: none | |
3106 | */ | |
3107 | static int | |
3108 | zfs_ioc_destroy_snaps(zfs_cmd_t *zc) | |
3109 | { | |
3110 | int err; | |
3111 | ||
3112 | if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0) | |
3113 | return (EINVAL); | |
3114 | err = dmu_objset_find(zc->zc_name, | |
3115 | zfs_unmount_snap, zc->zc_value, DS_FIND_CHILDREN); | |
3116 | if (err) | |
3117 | return (err); | |
45d1cae3 BB |
3118 | return (dmu_snapshots_destroy(zc->zc_name, zc->zc_value, |
3119 | zc->zc_defer_destroy)); | |
34dc7c2f BB |
3120 | } |
3121 | ||
3122 | /* | |
3123 | * inputs: | |
3124 | * zc_name name of dataset to destroy | |
3125 | * zc_objset_type type of objset | |
45d1cae3 | 3126 | * zc_defer_destroy mark for deferred destroy |
34dc7c2f BB |
3127 | * |
3128 | * outputs: none | |
3129 | */ | |
3130 | static int | |
3131 | zfs_ioc_destroy(zfs_cmd_t *zc) | |
3132 | { | |
428870ff | 3133 | int err; |
34dc7c2f | 3134 | if (strchr(zc->zc_name, '@') && zc->zc_objset_type == DMU_OST_ZFS) { |
428870ff | 3135 | err = zfs_unmount_snap(zc->zc_name, NULL); |
34dc7c2f BB |
3136 | if (err) |
3137 | return (err); | |
3138 | } | |
3139 | ||
428870ff BB |
3140 | err = dmu_objset_destroy(zc->zc_name, zc->zc_defer_destroy); |
3141 | if (zc->zc_objset_type == DMU_OST_ZVOL && err == 0) | |
3142 | (void) zvol_remove_minor(zc->zc_name); | |
3143 | return (err); | |
34dc7c2f BB |
3144 | } |
3145 | ||
3146 | /* | |
3147 | * inputs: | |
3148 | * zc_name name of dataset to rollback (to most recent snapshot) | |
3149 | * | |
3150 | * outputs: none | |
3151 | */ | |
3152 | static int | |
3153 | zfs_ioc_rollback(zfs_cmd_t *zc) | |
3154 | { | |
428870ff | 3155 | dsl_dataset_t *ds, *clone; |
34dc7c2f | 3156 | int error; |
428870ff BB |
3157 | zfsvfs_t *zfsvfs; |
3158 | char *clone_name; | |
3159 | ||
3160 | error = dsl_dataset_hold(zc->zc_name, FTAG, &ds); | |
3161 | if (error) | |
3162 | return (error); | |
3163 | ||
3164 | /* must not be a snapshot */ | |
3165 | if (dsl_dataset_is_snapshot(ds)) { | |
3166 | dsl_dataset_rele(ds, FTAG); | |
3167 | return (EINVAL); | |
3168 | } | |
3169 | ||
3170 | /* must have a most recent snapshot */ | |
3171 | if (ds->ds_phys->ds_prev_snap_txg < TXG_INITIAL) { | |
3172 | dsl_dataset_rele(ds, FTAG); | |
3173 | return (EINVAL); | |
3174 | } | |
34dc7c2f BB |
3175 | |
3176 | /* | |
428870ff | 3177 | * Create clone of most recent snapshot. |
34dc7c2f | 3178 | */ |
428870ff BB |
3179 | clone_name = kmem_asprintf("%s/%%rollback", zc->zc_name); |
3180 | error = dmu_objset_clone(clone_name, ds->ds_prev, DS_FLAG_INCONSISTENT); | |
34dc7c2f | 3181 | if (error) |
428870ff | 3182 | goto out; |
34dc7c2f | 3183 | |
428870ff BB |
3184 | error = dsl_dataset_own(clone_name, B_TRUE, FTAG, &clone); |
3185 | if (error) | |
3186 | goto out; | |
34dc7c2f | 3187 | |
428870ff BB |
3188 | /* |
3189 | * Do clone swap. | |
3190 | */ | |
3191 | if (getzfsvfs(zc->zc_name, &zfsvfs) == 0) { | |
3192 | error = zfs_suspend_fs(zfsvfs); | |
34dc7c2f BB |
3193 | if (error == 0) { |
3194 | int resume_err; | |
3195 | ||
428870ff BB |
3196 | if (dsl_dataset_tryown(ds, B_FALSE, FTAG)) { |
3197 | error = dsl_dataset_clone_swap(clone, ds, | |
3198 | B_TRUE); | |
3199 | dsl_dataset_disown(ds, FTAG); | |
3200 | ds = NULL; | |
3201 | } else { | |
3202 | error = EBUSY; | |
3203 | } | |
3204 | resume_err = zfs_resume_fs(zfsvfs, zc->zc_name); | |
34dc7c2f | 3205 | error = error ? error : resume_err; |
34dc7c2f BB |
3206 | } |
3207 | VFS_RELE(zfsvfs->z_vfs); | |
3208 | } else { | |
428870ff BB |
3209 | if (dsl_dataset_tryown(ds, B_FALSE, FTAG)) { |
3210 | error = dsl_dataset_clone_swap(clone, ds, B_TRUE); | |
3211 | dsl_dataset_disown(ds, FTAG); | |
3212 | ds = NULL; | |
3213 | } else { | |
3214 | error = EBUSY; | |
3215 | } | |
34dc7c2f | 3216 | } |
34dc7c2f | 3217 | |
428870ff BB |
3218 | /* |
3219 | * Destroy clone (which also closes it). | |
3220 | */ | |
3221 | (void) dsl_dataset_destroy(clone, FTAG, B_FALSE); | |
3222 | ||
3223 | out: | |
3224 | strfree(clone_name); | |
3225 | if (ds) | |
3226 | dsl_dataset_rele(ds, FTAG); | |
34dc7c2f BB |
3227 | return (error); |
3228 | } | |
3229 | ||
3230 | /* | |
3231 | * inputs: | |
3232 | * zc_name old name of dataset | |
3233 | * zc_value new name of dataset | |
3234 | * zc_cookie recursive flag (only valid for snapshots) | |
3235 | * | |
3236 | * outputs: none | |
3237 | */ | |
3238 | static int | |
3239 | zfs_ioc_rename(zfs_cmd_t *zc) | |
3240 | { | |
3241 | boolean_t recursive = zc->zc_cookie & 1; | |
3242 | ||
3243 | zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; | |
3244 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
3245 | strchr(zc->zc_value, '%')) | |
3246 | return (EINVAL); | |
3247 | ||
3248 | /* | |
3249 | * Unmount snapshot unless we're doing a recursive rename, | |
3250 | * in which case the dataset code figures out which snapshots | |
3251 | * to unmount. | |
3252 | */ | |
3253 | if (!recursive && strchr(zc->zc_name, '@') != NULL && | |
3254 | zc->zc_objset_type == DMU_OST_ZFS) { | |
3255 | int err = zfs_unmount_snap(zc->zc_name, NULL); | |
3256 | if (err) | |
3257 | return (err); | |
3258 | } | |
428870ff BB |
3259 | if (zc->zc_objset_type == DMU_OST_ZVOL) |
3260 | (void) zvol_remove_minor(zc->zc_name); | |
34dc7c2f BB |
3261 | return (dmu_objset_rename(zc->zc_name, zc->zc_value, recursive)); |
3262 | } | |
3263 | ||
428870ff BB |
3264 | static int |
3265 | zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr) | |
3266 | { | |
3267 | const char *propname = nvpair_name(pair); | |
3268 | boolean_t issnap = (strchr(dsname, '@') != NULL); | |
3269 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
3270 | uint64_t intval; | |
3271 | int err; | |
3272 | ||
3273 | if (prop == ZPROP_INVAL) { | |
3274 | if (zfs_prop_user(propname)) { | |
3275 | if (err = zfs_secpolicy_write_perms(dsname, | |
3276 | ZFS_DELEG_PERM_USERPROP, cr)) | |
3277 | return (err); | |
3278 | return (0); | |
3279 | } | |
3280 | ||
3281 | if (!issnap && zfs_prop_userquota(propname)) { | |
3282 | const char *perm = NULL; | |
3283 | const char *uq_prefix = | |
3284 | zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA]; | |
3285 | const char *gq_prefix = | |
3286 | zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA]; | |
3287 | ||
3288 | if (strncmp(propname, uq_prefix, | |
3289 | strlen(uq_prefix)) == 0) { | |
3290 | perm = ZFS_DELEG_PERM_USERQUOTA; | |
3291 | } else if (strncmp(propname, gq_prefix, | |
3292 | strlen(gq_prefix)) == 0) { | |
3293 | perm = ZFS_DELEG_PERM_GROUPQUOTA; | |
3294 | } else { | |
3295 | /* USERUSED and GROUPUSED are read-only */ | |
3296 | return (EINVAL); | |
3297 | } | |
3298 | ||
3299 | if (err = zfs_secpolicy_write_perms(dsname, perm, cr)) | |
3300 | return (err); | |
3301 | return (0); | |
3302 | } | |
3303 | ||
3304 | return (EINVAL); | |
3305 | } | |
3306 | ||
3307 | if (issnap) | |
3308 | return (EINVAL); | |
3309 | ||
3310 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
3311 | /* | |
3312 | * dsl_prop_get_all_impl() returns properties in this | |
3313 | * format. | |
3314 | */ | |
3315 | nvlist_t *attrs; | |
3316 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
3317 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3318 | &pair) == 0); | |
3319 | } | |
3320 | ||
3321 | /* | |
3322 | * Check that this value is valid for this pool version | |
3323 | */ | |
3324 | switch (prop) { | |
3325 | case ZFS_PROP_COMPRESSION: | |
3326 | /* | |
3327 | * If the user specified gzip compression, make sure | |
3328 | * the SPA supports it. We ignore any errors here since | |
3329 | * we'll catch them later. | |
3330 | */ | |
3331 | if (nvpair_type(pair) == DATA_TYPE_UINT64 && | |
3332 | nvpair_value_uint64(pair, &intval) == 0) { | |
3333 | if (intval >= ZIO_COMPRESS_GZIP_1 && | |
3334 | intval <= ZIO_COMPRESS_GZIP_9 && | |
3335 | zfs_earlier_version(dsname, | |
3336 | SPA_VERSION_GZIP_COMPRESSION)) { | |
3337 | return (ENOTSUP); | |
3338 | } | |
3339 | ||
3340 | if (intval == ZIO_COMPRESS_ZLE && | |
3341 | zfs_earlier_version(dsname, | |
3342 | SPA_VERSION_ZLE_COMPRESSION)) | |
3343 | return (ENOTSUP); | |
3344 | ||
3345 | /* | |
3346 | * If this is a bootable dataset then | |
3347 | * verify that the compression algorithm | |
3348 | * is supported for booting. We must return | |
3349 | * something other than ENOTSUP since it | |
3350 | * implies a downrev pool version. | |
3351 | */ | |
3352 | if (zfs_is_bootfs(dsname) && | |
3353 | !BOOTFS_COMPRESS_VALID(intval)) { | |
3354 | return (ERANGE); | |
3355 | } | |
3356 | } | |
3357 | break; | |
3358 | ||
3359 | case ZFS_PROP_COPIES: | |
3360 | if (zfs_earlier_version(dsname, SPA_VERSION_DITTO_BLOCKS)) | |
3361 | return (ENOTSUP); | |
3362 | break; | |
3363 | ||
3364 | case ZFS_PROP_DEDUP: | |
3365 | if (zfs_earlier_version(dsname, SPA_VERSION_DEDUP)) | |
3366 | return (ENOTSUP); | |
3367 | break; | |
3368 | ||
3369 | case ZFS_PROP_SHARESMB: | |
3370 | if (zpl_earlier_version(dsname, ZPL_VERSION_FUID)) | |
3371 | return (ENOTSUP); | |
3372 | break; | |
3373 | ||
3374 | case ZFS_PROP_ACLINHERIT: | |
3375 | if (nvpair_type(pair) == DATA_TYPE_UINT64 && | |
3376 | nvpair_value_uint64(pair, &intval) == 0) { | |
3377 | if (intval == ZFS_ACL_PASSTHROUGH_X && | |
3378 | zfs_earlier_version(dsname, | |
3379 | SPA_VERSION_PASSTHROUGH_X)) | |
3380 | return (ENOTSUP); | |
3381 | } | |
3382 | break; | |
3383 | } | |
3384 | ||
3385 | return (zfs_secpolicy_setprop(dsname, prop, pair, CRED())); | |
3386 | } | |
3387 | ||
3388 | /* | |
3389 | * Removes properties from the given props list that fail permission checks | |
3390 | * needed to clear them and to restore them in case of a receive error. For each | |
3391 | * property, make sure we have both set and inherit permissions. | |
3392 | * | |
3393 | * Returns the first error encountered if any permission checks fail. If the | |
3394 | * caller provides a non-NULL errlist, it also gives the complete list of names | |
3395 | * of all the properties that failed a permission check along with the | |
3396 | * corresponding error numbers. The caller is responsible for freeing the | |
3397 | * returned errlist. | |
3398 | * | |
3399 | * If every property checks out successfully, zero is returned and the list | |
3400 | * pointed at by errlist is NULL. | |
3401 | */ | |
3402 | static int | |
3403 | zfs_check_clearable(char *dataset, nvlist_t *props, nvlist_t **errlist) | |
b128c09f BB |
3404 | { |
3405 | zfs_cmd_t *zc; | |
428870ff BB |
3406 | nvpair_t *pair, *next_pair; |
3407 | nvlist_t *errors; | |
3408 | int err, rv = 0; | |
b128c09f BB |
3409 | |
3410 | if (props == NULL) | |
428870ff BB |
3411 | return (0); |
3412 | ||
3413 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3414 | ||
b128c09f BB |
3415 | zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP); |
3416 | (void) strcpy(zc->zc_name, dataset); | |
428870ff BB |
3417 | pair = nvlist_next_nvpair(props, NULL); |
3418 | while (pair != NULL) { | |
3419 | next_pair = nvlist_next_nvpair(props, pair); | |
3420 | ||
3421 | (void) strcpy(zc->zc_value, nvpair_name(pair)); | |
3422 | if ((err = zfs_check_settable(dataset, pair, CRED())) != 0 || | |
3423 | (err = zfs_secpolicy_inherit(zc, CRED())) != 0) { | |
3424 | VERIFY(nvlist_remove_nvpair(props, pair) == 0); | |
3425 | VERIFY(nvlist_add_int32(errors, | |
3426 | zc->zc_value, err) == 0); | |
3427 | } | |
3428 | pair = next_pair; | |
b128c09f BB |
3429 | } |
3430 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
428870ff BB |
3431 | |
3432 | if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) { | |
3433 | nvlist_free(errors); | |
3434 | errors = NULL; | |
3435 | } else { | |
3436 | VERIFY(nvpair_value_int32(pair, &rv) == 0); | |
3437 | } | |
3438 | ||
3439 | if (errlist == NULL) | |
3440 | nvlist_free(errors); | |
3441 | else | |
3442 | *errlist = errors; | |
3443 | ||
3444 | return (rv); | |
3445 | } | |
3446 | ||
3447 | static boolean_t | |
3448 | propval_equals(nvpair_t *p1, nvpair_t *p2) | |
3449 | { | |
3450 | if (nvpair_type(p1) == DATA_TYPE_NVLIST) { | |
3451 | /* dsl_prop_get_all_impl() format */ | |
3452 | nvlist_t *attrs; | |
3453 | VERIFY(nvpair_value_nvlist(p1, &attrs) == 0); | |
3454 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3455 | &p1) == 0); | |
3456 | } | |
3457 | ||
3458 | if (nvpair_type(p2) == DATA_TYPE_NVLIST) { | |
3459 | nvlist_t *attrs; | |
3460 | VERIFY(nvpair_value_nvlist(p2, &attrs) == 0); | |
3461 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3462 | &p2) == 0); | |
3463 | } | |
3464 | ||
3465 | if (nvpair_type(p1) != nvpair_type(p2)) | |
3466 | return (B_FALSE); | |
3467 | ||
3468 | if (nvpair_type(p1) == DATA_TYPE_STRING) { | |
3469 | char *valstr1, *valstr2; | |
3470 | ||
3471 | VERIFY(nvpair_value_string(p1, (char **)&valstr1) == 0); | |
3472 | VERIFY(nvpair_value_string(p2, (char **)&valstr2) == 0); | |
3473 | return (strcmp(valstr1, valstr2) == 0); | |
3474 | } else { | |
3475 | uint64_t intval1, intval2; | |
3476 | ||
3477 | VERIFY(nvpair_value_uint64(p1, &intval1) == 0); | |
3478 | VERIFY(nvpair_value_uint64(p2, &intval2) == 0); | |
3479 | return (intval1 == intval2); | |
3480 | } | |
b128c09f BB |
3481 | } |
3482 | ||
428870ff BB |
3483 | /* |
3484 | * Remove properties from props if they are not going to change (as determined | |
3485 | * by comparison with origprops). Remove them from origprops as well, since we | |
3486 | * do not need to clear or restore properties that won't change. | |
3487 | */ | |
3488 | static void | |
3489 | props_reduce(nvlist_t *props, nvlist_t *origprops) | |
3490 | { | |
3491 | nvpair_t *pair, *next_pair; | |
3492 | ||
3493 | if (origprops == NULL) | |
3494 | return; /* all props need to be received */ | |
3495 | ||
3496 | pair = nvlist_next_nvpair(props, NULL); | |
3497 | while (pair != NULL) { | |
3498 | const char *propname = nvpair_name(pair); | |
3499 | nvpair_t *match; | |
3500 | ||
3501 | next_pair = nvlist_next_nvpair(props, pair); | |
3502 | ||
3503 | if ((nvlist_lookup_nvpair(origprops, propname, | |
3504 | &match) != 0) || !propval_equals(pair, match)) | |
3505 | goto next; /* need to set received value */ | |
3506 | ||
3507 | /* don't clear the existing received value */ | |
3508 | (void) nvlist_remove_nvpair(origprops, match); | |
3509 | /* don't bother receiving the property */ | |
3510 | (void) nvlist_remove_nvpair(props, pair); | |
3511 | next: | |
3512 | pair = next_pair; | |
3513 | } | |
3514 | } | |
3515 | ||
3516 | #ifdef DEBUG | |
3517 | static boolean_t zfs_ioc_recv_inject_err; | |
3518 | #endif | |
3519 | ||
34dc7c2f BB |
3520 | /* |
3521 | * inputs: | |
3522 | * zc_name name of containing filesystem | |
3523 | * zc_nvlist_src{_size} nvlist of properties to apply | |
3524 | * zc_value name of snapshot to create | |
3525 | * zc_string name of clone origin (if DRR_FLAG_CLONE) | |
3526 | * zc_cookie file descriptor to recv from | |
3527 | * zc_begin_record the BEGIN record of the stream (not byteswapped) | |
3528 | * zc_guid force flag | |
572e2857 BB |
3529 | * zc_cleanup_fd cleanup-on-exit file descriptor |
3530 | * zc_action_handle handle for this guid/ds mapping (or zero on first call) | |
34dc7c2f BB |
3531 | * |
3532 | * outputs: | |
3533 | * zc_cookie number of bytes read | |
428870ff BB |
3534 | * zc_nvlist_dst{_size} error for each unapplied received property |
3535 | * zc_obj zprop_errflags_t | |
572e2857 | 3536 | * zc_action_handle handle for this guid/ds mapping |
34dc7c2f BB |
3537 | */ |
3538 | static int | |
3539 | zfs_ioc_recv(zfs_cmd_t *zc) | |
3540 | { | |
3541 | file_t *fp; | |
3542 | objset_t *os; | |
3543 | dmu_recv_cookie_t drc; | |
34dc7c2f | 3544 | boolean_t force = (boolean_t)zc->zc_guid; |
428870ff BB |
3545 | int fd; |
3546 | int error = 0; | |
3547 | int props_error = 0; | |
3548 | nvlist_t *errors; | |
34dc7c2f | 3549 | offset_t off; |
428870ff BB |
3550 | nvlist_t *props = NULL; /* sent properties */ |
3551 | nvlist_t *origprops = NULL; /* existing properties */ | |
34dc7c2f BB |
3552 | objset_t *origin = NULL; |
3553 | char *tosnap; | |
3554 | char tofs[ZFS_MAXNAMELEN]; | |
428870ff | 3555 | boolean_t first_recvd_props = B_FALSE; |
34dc7c2f BB |
3556 | |
3557 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
3558 | strchr(zc->zc_value, '@') == NULL || | |
3559 | strchr(zc->zc_value, '%')) | |
3560 | return (EINVAL); | |
3561 | ||
3562 | (void) strcpy(tofs, zc->zc_value); | |
3563 | tosnap = strchr(tofs, '@'); | |
428870ff | 3564 | *tosnap++ = '\0'; |
34dc7c2f BB |
3565 | |
3566 | if (zc->zc_nvlist_src != NULL && | |
3567 | (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 3568 | zc->zc_iflags, &props)) != 0) |
34dc7c2f BB |
3569 | return (error); |
3570 | ||
3571 | fd = zc->zc_cookie; | |
3572 | fp = getf(fd); | |
3573 | if (fp == NULL) { | |
3574 | nvlist_free(props); | |
3575 | return (EBADF); | |
3576 | } | |
3577 | ||
428870ff BB |
3578 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
3579 | ||
3580 | if (props && dmu_objset_hold(tofs, FTAG, &os) == 0) { | |
3581 | if ((spa_version(os->os_spa) >= SPA_VERSION_RECVD_PROPS) && | |
3582 | !dsl_prop_get_hasrecvd(os)) { | |
3583 | first_recvd_props = B_TRUE; | |
3584 | } | |
3585 | ||
b128c09f | 3586 | /* |
428870ff BB |
3587 | * If new received properties are supplied, they are to |
3588 | * completely replace the existing received properties, so stash | |
3589 | * away the existing ones. | |
b128c09f | 3590 | */ |
428870ff BB |
3591 | if (dsl_prop_get_received(os, &origprops) == 0) { |
3592 | nvlist_t *errlist = NULL; | |
3593 | /* | |
3594 | * Don't bother writing a property if its value won't | |
3595 | * change (and avoid the unnecessary security checks). | |
3596 | * | |
3597 | * The first receive after SPA_VERSION_RECVD_PROPS is a | |
3598 | * special case where we blow away all local properties | |
3599 | * regardless. | |
3600 | */ | |
3601 | if (!first_recvd_props) | |
3602 | props_reduce(props, origprops); | |
3603 | if (zfs_check_clearable(tofs, origprops, | |
3604 | &errlist) != 0) | |
3605 | (void) nvlist_merge(errors, errlist, 0); | |
3606 | nvlist_free(errlist); | |
3607 | } | |
b128c09f | 3608 | |
428870ff | 3609 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
3610 | } |
3611 | ||
3612 | if (zc->zc_string[0]) { | |
428870ff | 3613 | error = dmu_objset_hold(zc->zc_string, FTAG, &origin); |
b128c09f BB |
3614 | if (error) |
3615 | goto out; | |
34dc7c2f BB |
3616 | } |
3617 | ||
428870ff BB |
3618 | error = dmu_recv_begin(tofs, tosnap, zc->zc_top_ds, |
3619 | &zc->zc_begin_record, force, origin, &drc); | |
34dc7c2f | 3620 | if (origin) |
428870ff | 3621 | dmu_objset_rele(origin, FTAG); |
b128c09f BB |
3622 | if (error) |
3623 | goto out; | |
34dc7c2f BB |
3624 | |
3625 | /* | |
428870ff BB |
3626 | * Set properties before we receive the stream so that they are applied |
3627 | * to the new data. Note that we must call dmu_recv_stream() if | |
3628 | * dmu_recv_begin() succeeds. | |
34dc7c2f BB |
3629 | */ |
3630 | if (props) { | |
428870ff BB |
3631 | nvlist_t *errlist; |
3632 | ||
3633 | if (dmu_objset_from_ds(drc.drc_logical_ds, &os) == 0) { | |
3634 | if (drc.drc_newfs) { | |
3635 | if (spa_version(os->os_spa) >= | |
3636 | SPA_VERSION_RECVD_PROPS) | |
3637 | first_recvd_props = B_TRUE; | |
3638 | } else if (origprops != NULL) { | |
3639 | if (clear_received_props(os, tofs, origprops, | |
3640 | first_recvd_props ? NULL : props) != 0) | |
3641 | zc->zc_obj |= ZPROP_ERR_NOCLEAR; | |
3642 | } else { | |
3643 | zc->zc_obj |= ZPROP_ERR_NOCLEAR; | |
3644 | } | |
3645 | dsl_prop_set_hasrecvd(os); | |
3646 | } else if (!drc.drc_newfs) { | |
3647 | zc->zc_obj |= ZPROP_ERR_NOCLEAR; | |
3648 | } | |
3649 | ||
3650 | (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED, | |
3651 | props, &errlist); | |
3652 | (void) nvlist_merge(errors, errlist, 0); | |
3653 | nvlist_free(errlist); | |
3654 | } | |
3655 | ||
3656 | if (fit_error_list(zc, &errors) != 0 || put_nvlist(zc, errors) != 0) { | |
b128c09f | 3657 | /* |
428870ff BB |
3658 | * Caller made zc->zc_nvlist_dst less than the minimum expected |
3659 | * size or supplied an invalid address. | |
b128c09f | 3660 | */ |
428870ff | 3661 | props_error = EINVAL; |
34dc7c2f BB |
3662 | } |
3663 | ||
34dc7c2f | 3664 | off = fp->f_offset; |
572e2857 BB |
3665 | error = dmu_recv_stream(&drc, fp->f_vnode, &off, zc->zc_cleanup_fd, |
3666 | &zc->zc_action_handle); | |
34dc7c2f | 3667 | |
45d1cae3 BB |
3668 | if (error == 0) { |
3669 | zfsvfs_t *zfsvfs = NULL; | |
b128c09f | 3670 | |
45d1cae3 BB |
3671 | if (getzfsvfs(tofs, &zfsvfs) == 0) { |
3672 | /* online recv */ | |
3673 | int end_err; | |
b128c09f | 3674 | |
428870ff | 3675 | error = zfs_suspend_fs(zfsvfs); |
45d1cae3 BB |
3676 | /* |
3677 | * If the suspend fails, then the recv_end will | |
3678 | * likely also fail, and clean up after itself. | |
3679 | */ | |
3680 | end_err = dmu_recv_end(&drc); | |
428870ff BB |
3681 | if (error == 0) |
3682 | error = zfs_resume_fs(zfsvfs, tofs); | |
45d1cae3 BB |
3683 | error = error ? error : end_err; |
3684 | VFS_RELE(zfsvfs->z_vfs); | |
b128c09f | 3685 | } else { |
45d1cae3 | 3686 | error = dmu_recv_end(&drc); |
34dc7c2f | 3687 | } |
34dc7c2f BB |
3688 | } |
3689 | ||
3690 | zc->zc_cookie = off - fp->f_offset; | |
3691 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
3692 | fp->f_offset = off; | |
3693 | ||
428870ff BB |
3694 | #ifdef DEBUG |
3695 | if (zfs_ioc_recv_inject_err) { | |
3696 | zfs_ioc_recv_inject_err = B_FALSE; | |
3697 | error = 1; | |
3698 | } | |
3699 | #endif | |
b128c09f BB |
3700 | /* |
3701 | * On error, restore the original props. | |
3702 | */ | |
3703 | if (error && props) { | |
428870ff BB |
3704 | if (dmu_objset_hold(tofs, FTAG, &os) == 0) { |
3705 | if (clear_received_props(os, tofs, props, NULL) != 0) { | |
3706 | /* | |
3707 | * We failed to clear the received properties. | |
3708 | * Since we may have left a $recvd value on the | |
3709 | * system, we can't clear the $hasrecvd flag. | |
3710 | */ | |
3711 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
3712 | } else if (first_recvd_props) { | |
3713 | dsl_prop_unset_hasrecvd(os); | |
3714 | } | |
3715 | dmu_objset_rele(os, FTAG); | |
3716 | } else if (!drc.drc_newfs) { | |
3717 | /* We failed to clear the received properties. */ | |
3718 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
3719 | } | |
3720 | ||
3721 | if (origprops == NULL && !drc.drc_newfs) { | |
3722 | /* We failed to stash the original properties. */ | |
3723 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
3724 | } | |
3725 | ||
3726 | /* | |
3727 | * dsl_props_set() will not convert RECEIVED to LOCAL on or | |
3728 | * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL | |
3729 | * explictly if we're restoring local properties cleared in the | |
3730 | * first new-style receive. | |
3731 | */ | |
3732 | if (origprops != NULL && | |
3733 | zfs_set_prop_nvlist(tofs, (first_recvd_props ? | |
3734 | ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED), | |
3735 | origprops, NULL) != 0) { | |
3736 | /* | |
3737 | * We stashed the original properties but failed to | |
3738 | * restore them. | |
3739 | */ | |
3740 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
3741 | } | |
b128c09f BB |
3742 | } |
3743 | out: | |
b128c09f BB |
3744 | nvlist_free(props); |
3745 | nvlist_free(origprops); | |
428870ff | 3746 | nvlist_free(errors); |
34dc7c2f | 3747 | releasef(fd); |
428870ff BB |
3748 | |
3749 | if (error == 0) | |
3750 | error = props_error; | |
3751 | ||
34dc7c2f BB |
3752 | return (error); |
3753 | } | |
3754 | ||
3755 | /* | |
3756 | * inputs: | |
3757 | * zc_name name of snapshot to send | |
34dc7c2f | 3758 | * zc_cookie file descriptor to send stream to |
572e2857 BB |
3759 | * zc_obj fromorigin flag (mutually exclusive with zc_fromobj) |
3760 | * zc_sendobj objsetid of snapshot to send | |
3761 | * zc_fromobj objsetid of incremental fromsnap (may be zero) | |
34dc7c2f BB |
3762 | * |
3763 | * outputs: none | |
3764 | */ | |
3765 | static int | |
3766 | zfs_ioc_send(zfs_cmd_t *zc) | |
3767 | { | |
3768 | objset_t *fromsnap = NULL; | |
3769 | objset_t *tosnap; | |
3770 | file_t *fp; | |
3771 | int error; | |
3772 | offset_t off; | |
572e2857 BB |
3773 | dsl_dataset_t *ds; |
3774 | dsl_dataset_t *dsfrom = NULL; | |
3775 | spa_t *spa; | |
3776 | dsl_pool_t *dp; | |
34dc7c2f | 3777 | |
572e2857 | 3778 | error = spa_open(zc->zc_name, &spa, FTAG); |
34dc7c2f BB |
3779 | if (error) |
3780 | return (error); | |
3781 | ||
572e2857 BB |
3782 | dp = spa_get_dsl(spa); |
3783 | rw_enter(&dp->dp_config_rwlock, RW_READER); | |
3784 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds); | |
3785 | rw_exit(&dp->dp_config_rwlock); | |
3786 | if (error) { | |
3787 | spa_close(spa, FTAG); | |
3788 | return (error); | |
3789 | } | |
3790 | ||
3791 | error = dmu_objset_from_ds(ds, &tosnap); | |
3792 | if (error) { | |
3793 | dsl_dataset_rele(ds, FTAG); | |
3794 | spa_close(spa, FTAG); | |
3795 | return (error); | |
3796 | } | |
3797 | ||
3798 | if (zc->zc_fromobj != 0) { | |
3799 | rw_enter(&dp->dp_config_rwlock, RW_READER); | |
3800 | error = dsl_dataset_hold_obj(dp, zc->zc_fromobj, FTAG, &dsfrom); | |
3801 | rw_exit(&dp->dp_config_rwlock); | |
3802 | spa_close(spa, FTAG); | |
3803 | if (error) { | |
3804 | dsl_dataset_rele(ds, FTAG); | |
3805 | return (error); | |
3806 | } | |
3807 | error = dmu_objset_from_ds(dsfrom, &fromsnap); | |
34dc7c2f | 3808 | if (error) { |
572e2857 BB |
3809 | dsl_dataset_rele(dsfrom, FTAG); |
3810 | dsl_dataset_rele(ds, FTAG); | |
34dc7c2f BB |
3811 | return (error); |
3812 | } | |
572e2857 BB |
3813 | } else { |
3814 | spa_close(spa, FTAG); | |
34dc7c2f BB |
3815 | } |
3816 | ||
3817 | fp = getf(zc->zc_cookie); | |
3818 | if (fp == NULL) { | |
572e2857 BB |
3819 | dsl_dataset_rele(ds, FTAG); |
3820 | if (dsfrom) | |
3821 | dsl_dataset_rele(dsfrom, FTAG); | |
34dc7c2f BB |
3822 | return (EBADF); |
3823 | } | |
3824 | ||
3825 | off = fp->f_offset; | |
3826 | error = dmu_sendbackup(tosnap, fromsnap, zc->zc_obj, fp->f_vnode, &off); | |
3827 | ||
3828 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
3829 | fp->f_offset = off; | |
3830 | releasef(zc->zc_cookie); | |
572e2857 BB |
3831 | if (dsfrom) |
3832 | dsl_dataset_rele(dsfrom, FTAG); | |
3833 | dsl_dataset_rele(ds, FTAG); | |
34dc7c2f BB |
3834 | return (error); |
3835 | } | |
3836 | ||
3837 | static int | |
3838 | zfs_ioc_inject_fault(zfs_cmd_t *zc) | |
3839 | { | |
3840 | int id, error; | |
3841 | ||
3842 | error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id, | |
3843 | &zc->zc_inject_record); | |
3844 | ||
3845 | if (error == 0) | |
3846 | zc->zc_guid = (uint64_t)id; | |
3847 | ||
3848 | return (error); | |
3849 | } | |
3850 | ||
3851 | static int | |
3852 | zfs_ioc_clear_fault(zfs_cmd_t *zc) | |
3853 | { | |
3854 | return (zio_clear_fault((int)zc->zc_guid)); | |
3855 | } | |
3856 | ||
3857 | static int | |
3858 | zfs_ioc_inject_list_next(zfs_cmd_t *zc) | |
3859 | { | |
3860 | int id = (int)zc->zc_guid; | |
3861 | int error; | |
3862 | ||
3863 | error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name), | |
3864 | &zc->zc_inject_record); | |
3865 | ||
3866 | zc->zc_guid = id; | |
3867 | ||
3868 | return (error); | |
3869 | } | |
3870 | ||
3871 | static int | |
3872 | zfs_ioc_error_log(zfs_cmd_t *zc) | |
3873 | { | |
3874 | spa_t *spa; | |
3875 | int error; | |
3876 | size_t count = (size_t)zc->zc_nvlist_dst_size; | |
3877 | ||
3878 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
3879 | return (error); | |
3880 | ||
3881 | error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst, | |
3882 | &count); | |
3883 | if (error == 0) | |
3884 | zc->zc_nvlist_dst_size = count; | |
3885 | else | |
3886 | zc->zc_nvlist_dst_size = spa_get_errlog_size(spa); | |
3887 | ||
3888 | spa_close(spa, FTAG); | |
3889 | ||
3890 | return (error); | |
3891 | } | |
3892 | ||
3893 | static int | |
3894 | zfs_ioc_clear(zfs_cmd_t *zc) | |
3895 | { | |
3896 | spa_t *spa; | |
3897 | vdev_t *vd; | |
34dc7c2f BB |
3898 | int error; |
3899 | ||
34dc7c2f | 3900 | /* |
b128c09f | 3901 | * On zpool clear we also fix up missing slogs |
34dc7c2f | 3902 | */ |
b128c09f BB |
3903 | mutex_enter(&spa_namespace_lock); |
3904 | spa = spa_lookup(zc->zc_name); | |
3905 | if (spa == NULL) { | |
3906 | mutex_exit(&spa_namespace_lock); | |
3907 | return (EIO); | |
3908 | } | |
428870ff | 3909 | if (spa_get_log_state(spa) == SPA_LOG_MISSING) { |
b128c09f | 3910 | /* we need to let spa_open/spa_load clear the chains */ |
428870ff | 3911 | spa_set_log_state(spa, SPA_LOG_CLEAR); |
34dc7c2f | 3912 | } |
428870ff | 3913 | spa->spa_last_open_failed = 0; |
b128c09f | 3914 | mutex_exit(&spa_namespace_lock); |
34dc7c2f | 3915 | |
428870ff BB |
3916 | if (zc->zc_cookie & ZPOOL_NO_REWIND) { |
3917 | error = spa_open(zc->zc_name, &spa, FTAG); | |
3918 | } else { | |
3919 | nvlist_t *policy; | |
3920 | nvlist_t *config = NULL; | |
3921 | ||
3922 | if (zc->zc_nvlist_src == NULL) | |
3923 | return (EINVAL); | |
3924 | ||
3925 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
3926 | zc->zc_nvlist_src_size, zc->zc_iflags, &policy)) == 0) { | |
3927 | error = spa_open_rewind(zc->zc_name, &spa, FTAG, | |
3928 | policy, &config); | |
3929 | if (config != NULL) { | |
572e2857 BB |
3930 | int err; |
3931 | ||
3932 | if ((err = put_nvlist(zc, config)) != 0) | |
3933 | error = err; | |
428870ff BB |
3934 | nvlist_free(config); |
3935 | } | |
3936 | nvlist_free(policy); | |
3937 | } | |
3938 | } | |
3939 | ||
3940 | if (error) | |
b128c09f BB |
3941 | return (error); |
3942 | ||
428870ff | 3943 | spa_vdev_state_enter(spa, SCL_NONE); |
34dc7c2f BB |
3944 | |
3945 | if (zc->zc_guid == 0) { | |
3946 | vd = NULL; | |
b128c09f BB |
3947 | } else { |
3948 | vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE); | |
34dc7c2f | 3949 | if (vd == NULL) { |
b128c09f | 3950 | (void) spa_vdev_state_exit(spa, NULL, ENODEV); |
34dc7c2f BB |
3951 | spa_close(spa, FTAG); |
3952 | return (ENODEV); | |
3953 | } | |
3954 | } | |
3955 | ||
b128c09f BB |
3956 | vdev_clear(spa, vd); |
3957 | ||
3958 | (void) spa_vdev_state_exit(spa, NULL, 0); | |
34dc7c2f | 3959 | |
b128c09f BB |
3960 | /* |
3961 | * Resume any suspended I/Os. | |
3962 | */ | |
9babb374 BB |
3963 | if (zio_resume(spa) != 0) |
3964 | error = EIO; | |
34dc7c2f BB |
3965 | |
3966 | spa_close(spa, FTAG); | |
3967 | ||
9babb374 | 3968 | return (error); |
34dc7c2f BB |
3969 | } |
3970 | ||
3971 | /* | |
3972 | * inputs: | |
3973 | * zc_name name of filesystem | |
3974 | * zc_value name of origin snapshot | |
3975 | * | |
428870ff BB |
3976 | * outputs: |
3977 | * zc_string name of conflicting snapshot, if there is one | |
34dc7c2f BB |
3978 | */ |
3979 | static int | |
3980 | zfs_ioc_promote(zfs_cmd_t *zc) | |
3981 | { | |
3982 | char *cp; | |
3983 | ||
3984 | /* | |
3985 | * We don't need to unmount *all* the origin fs's snapshots, but | |
3986 | * it's easier. | |
3987 | */ | |
3988 | cp = strchr(zc->zc_value, '@'); | |
3989 | if (cp) | |
3990 | *cp = '\0'; | |
3991 | (void) dmu_objset_find(zc->zc_value, | |
3992 | zfs_unmount_snap, NULL, DS_FIND_SNAPSHOTS); | |
428870ff | 3993 | return (dsl_dataset_promote(zc->zc_name, zc->zc_string)); |
34dc7c2f BB |
3994 | } |
3995 | ||
9babb374 BB |
3996 | /* |
3997 | * Retrieve a single {user|group}{used|quota}@... property. | |
3998 | * | |
3999 | * inputs: | |
4000 | * zc_name name of filesystem | |
4001 | * zc_objset_type zfs_userquota_prop_t | |
4002 | * zc_value domain name (eg. "S-1-234-567-89") | |
4003 | * zc_guid RID/UID/GID | |
4004 | * | |
4005 | * outputs: | |
4006 | * zc_cookie property value | |
4007 | */ | |
4008 | static int | |
4009 | zfs_ioc_userspace_one(zfs_cmd_t *zc) | |
4010 | { | |
4011 | zfsvfs_t *zfsvfs; | |
4012 | int error; | |
4013 | ||
4014 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
4015 | return (EINVAL); | |
4016 | ||
572e2857 | 4017 | error = zfsvfs_hold(zc->zc_name, FTAG, &zfsvfs, B_FALSE); |
9babb374 BB |
4018 | if (error) |
4019 | return (error); | |
4020 | ||
4021 | error = zfs_userspace_one(zfsvfs, | |
4022 | zc->zc_objset_type, zc->zc_value, zc->zc_guid, &zc->zc_cookie); | |
4023 | zfsvfs_rele(zfsvfs, FTAG); | |
4024 | ||
4025 | return (error); | |
4026 | } | |
4027 | ||
4028 | /* | |
4029 | * inputs: | |
4030 | * zc_name name of filesystem | |
4031 | * zc_cookie zap cursor | |
4032 | * zc_objset_type zfs_userquota_prop_t | |
4033 | * zc_nvlist_dst[_size] buffer to fill (not really an nvlist) | |
4034 | * | |
4035 | * outputs: | |
4036 | * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t) | |
4037 | * zc_cookie zap cursor | |
4038 | */ | |
4039 | static int | |
4040 | zfs_ioc_userspace_many(zfs_cmd_t *zc) | |
4041 | { | |
4042 | zfsvfs_t *zfsvfs; | |
428870ff BB |
4043 | int bufsize = zc->zc_nvlist_dst_size; |
4044 | ||
4045 | if (bufsize <= 0) | |
4046 | return (ENOMEM); | |
9babb374 | 4047 | |
572e2857 | 4048 | int error = zfsvfs_hold(zc->zc_name, FTAG, &zfsvfs, B_FALSE); |
9babb374 BB |
4049 | if (error) |
4050 | return (error); | |
4051 | ||
9babb374 BB |
4052 | void *buf = kmem_alloc(bufsize, KM_SLEEP); |
4053 | ||
4054 | error = zfs_userspace_many(zfsvfs, zc->zc_objset_type, &zc->zc_cookie, | |
4055 | buf, &zc->zc_nvlist_dst_size); | |
4056 | ||
4057 | if (error == 0) { | |
4058 | error = xcopyout(buf, | |
4059 | (void *)(uintptr_t)zc->zc_nvlist_dst, | |
4060 | zc->zc_nvlist_dst_size); | |
4061 | } | |
4062 | kmem_free(buf, bufsize); | |
4063 | zfsvfs_rele(zfsvfs, FTAG); | |
4064 | ||
4065 | return (error); | |
4066 | } | |
4067 | ||
4068 | /* | |
4069 | * inputs: | |
4070 | * zc_name name of filesystem | |
4071 | * | |
4072 | * outputs: | |
4073 | * none | |
4074 | */ | |
4075 | static int | |
4076 | zfs_ioc_userspace_upgrade(zfs_cmd_t *zc) | |
4077 | { | |
4078 | objset_t *os; | |
428870ff | 4079 | int error = 0; |
9babb374 BB |
4080 | zfsvfs_t *zfsvfs; |
4081 | ||
4082 | if (getzfsvfs(zc->zc_name, &zfsvfs) == 0) { | |
428870ff | 4083 | if (!dmu_objset_userused_enabled(zfsvfs->z_os)) { |
9babb374 BB |
4084 | /* |
4085 | * If userused is not enabled, it may be because the | |
4086 | * objset needs to be closed & reopened (to grow the | |
4087 | * objset_phys_t). Suspend/resume the fs will do that. | |
4088 | */ | |
428870ff BB |
4089 | error = zfs_suspend_fs(zfsvfs); |
4090 | if (error == 0) | |
4091 | error = zfs_resume_fs(zfsvfs, zc->zc_name); | |
9babb374 BB |
4092 | } |
4093 | if (error == 0) | |
4094 | error = dmu_objset_userspace_upgrade(zfsvfs->z_os); | |
4095 | VFS_RELE(zfsvfs->z_vfs); | |
4096 | } else { | |
428870ff BB |
4097 | /* XXX kind of reading contents without owning */ |
4098 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
9babb374 BB |
4099 | if (error) |
4100 | return (error); | |
4101 | ||
4102 | error = dmu_objset_userspace_upgrade(os); | |
428870ff | 4103 | dmu_objset_rele(os, FTAG); |
9babb374 BB |
4104 | } |
4105 | ||
4106 | return (error); | |
4107 | } | |
4108 | ||
34dc7c2f BB |
4109 | /* |
4110 | * We don't want to have a hard dependency | |
4111 | * against some special symbols in sharefs | |
4112 | * nfs, and smbsrv. Determine them if needed when | |
4113 | * the first file system is shared. | |
4114 | * Neither sharefs, nfs or smbsrv are unloadable modules. | |
4115 | */ | |
4116 | int (*znfsexport_fs)(void *arg); | |
4117 | int (*zshare_fs)(enum sharefs_sys_op, share_t *, uint32_t); | |
4118 | int (*zsmbexport_fs)(void *arg, boolean_t add_share); | |
4119 | ||
4120 | int zfs_nfsshare_inited; | |
4121 | int zfs_smbshare_inited; | |
4122 | ||
4123 | ddi_modhandle_t nfs_mod; | |
4124 | ddi_modhandle_t sharefs_mod; | |
4125 | ddi_modhandle_t smbsrv_mod; | |
4126 | kmutex_t zfs_share_lock; | |
4127 | ||
4128 | static int | |
4129 | zfs_init_sharefs() | |
4130 | { | |
4131 | int error; | |
4132 | ||
4133 | ASSERT(MUTEX_HELD(&zfs_share_lock)); | |
4134 | /* Both NFS and SMB shares also require sharetab support. */ | |
4135 | if (sharefs_mod == NULL && ((sharefs_mod = | |
4136 | ddi_modopen("fs/sharefs", | |
4137 | KRTLD_MODE_FIRST, &error)) == NULL)) { | |
4138 | return (ENOSYS); | |
4139 | } | |
4140 | if (zshare_fs == NULL && ((zshare_fs = | |
4141 | (int (*)(enum sharefs_sys_op, share_t *, uint32_t)) | |
4142 | ddi_modsym(sharefs_mod, "sharefs_impl", &error)) == NULL)) { | |
4143 | return (ENOSYS); | |
4144 | } | |
4145 | return (0); | |
4146 | } | |
4147 | ||
4148 | static int | |
4149 | zfs_ioc_share(zfs_cmd_t *zc) | |
4150 | { | |
4151 | int error; | |
4152 | int opcode; | |
4153 | ||
4154 | switch (zc->zc_share.z_sharetype) { | |
4155 | case ZFS_SHARE_NFS: | |
4156 | case ZFS_UNSHARE_NFS: | |
4157 | if (zfs_nfsshare_inited == 0) { | |
4158 | mutex_enter(&zfs_share_lock); | |
4159 | if (nfs_mod == NULL && ((nfs_mod = ddi_modopen("fs/nfs", | |
4160 | KRTLD_MODE_FIRST, &error)) == NULL)) { | |
4161 | mutex_exit(&zfs_share_lock); | |
4162 | return (ENOSYS); | |
4163 | } | |
4164 | if (znfsexport_fs == NULL && | |
4165 | ((znfsexport_fs = (int (*)(void *)) | |
4166 | ddi_modsym(nfs_mod, | |
4167 | "nfs_export", &error)) == NULL)) { | |
4168 | mutex_exit(&zfs_share_lock); | |
4169 | return (ENOSYS); | |
4170 | } | |
4171 | error = zfs_init_sharefs(); | |
4172 | if (error) { | |
4173 | mutex_exit(&zfs_share_lock); | |
4174 | return (ENOSYS); | |
4175 | } | |
4176 | zfs_nfsshare_inited = 1; | |
4177 | mutex_exit(&zfs_share_lock); | |
4178 | } | |
4179 | break; | |
4180 | case ZFS_SHARE_SMB: | |
4181 | case ZFS_UNSHARE_SMB: | |
4182 | if (zfs_smbshare_inited == 0) { | |
4183 | mutex_enter(&zfs_share_lock); | |
4184 | if (smbsrv_mod == NULL && ((smbsrv_mod = | |
4185 | ddi_modopen("drv/smbsrv", | |
4186 | KRTLD_MODE_FIRST, &error)) == NULL)) { | |
4187 | mutex_exit(&zfs_share_lock); | |
4188 | return (ENOSYS); | |
4189 | } | |
4190 | if (zsmbexport_fs == NULL && ((zsmbexport_fs = | |
4191 | (int (*)(void *, boolean_t))ddi_modsym(smbsrv_mod, | |
4192 | "smb_server_share", &error)) == NULL)) { | |
4193 | mutex_exit(&zfs_share_lock); | |
4194 | return (ENOSYS); | |
4195 | } | |
4196 | error = zfs_init_sharefs(); | |
4197 | if (error) { | |
4198 | mutex_exit(&zfs_share_lock); | |
4199 | return (ENOSYS); | |
4200 | } | |
4201 | zfs_smbshare_inited = 1; | |
4202 | mutex_exit(&zfs_share_lock); | |
4203 | } | |
4204 | break; | |
4205 | default: | |
4206 | return (EINVAL); | |
4207 | } | |
4208 | ||
4209 | switch (zc->zc_share.z_sharetype) { | |
4210 | case ZFS_SHARE_NFS: | |
4211 | case ZFS_UNSHARE_NFS: | |
4212 | if (error = | |
4213 | znfsexport_fs((void *) | |
4214 | (uintptr_t)zc->zc_share.z_exportdata)) | |
4215 | return (error); | |
4216 | break; | |
4217 | case ZFS_SHARE_SMB: | |
4218 | case ZFS_UNSHARE_SMB: | |
4219 | if (error = zsmbexport_fs((void *) | |
4220 | (uintptr_t)zc->zc_share.z_exportdata, | |
4221 | zc->zc_share.z_sharetype == ZFS_SHARE_SMB ? | |
9babb374 | 4222 | B_TRUE: B_FALSE)) { |
34dc7c2f BB |
4223 | return (error); |
4224 | } | |
4225 | break; | |
4226 | } | |
4227 | ||
4228 | opcode = (zc->zc_share.z_sharetype == ZFS_SHARE_NFS || | |
4229 | zc->zc_share.z_sharetype == ZFS_SHARE_SMB) ? | |
4230 | SHAREFS_ADD : SHAREFS_REMOVE; | |
4231 | ||
4232 | /* | |
4233 | * Add or remove share from sharetab | |
4234 | */ | |
4235 | error = zshare_fs(opcode, | |
4236 | (void *)(uintptr_t)zc->zc_share.z_sharedata, | |
4237 | zc->zc_share.z_sharemax); | |
4238 | ||
4239 | return (error); | |
4240 | ||
4241 | } | |
4242 | ||
9babb374 BB |
4243 | ace_t full_access[] = { |
4244 | {(uid_t)-1, ACE_ALL_PERMS, ACE_EVERYONE, 0} | |
4245 | }; | |
4246 | ||
572e2857 BB |
4247 | /* |
4248 | * inputs: | |
4249 | * zc_name name of containing filesystem | |
4250 | * zc_obj object # beyond which we want next in-use object # | |
4251 | * | |
4252 | * outputs: | |
4253 | * zc_obj next in-use object # | |
4254 | */ | |
4255 | static int | |
4256 | zfs_ioc_next_obj(zfs_cmd_t *zc) | |
4257 | { | |
4258 | objset_t *os = NULL; | |
4259 | int error; | |
4260 | ||
4261 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
4262 | if (error) | |
4263 | return (error); | |
4264 | ||
4265 | error = dmu_object_next(os, &zc->zc_obj, B_FALSE, | |
4266 | os->os_dsl_dataset->ds_phys->ds_prev_snap_txg); | |
4267 | ||
4268 | dmu_objset_rele(os, FTAG); | |
4269 | return (error); | |
4270 | } | |
4271 | ||
4272 | /* | |
4273 | * inputs: | |
4274 | * zc_name name of filesystem | |
4275 | * zc_value prefix name for snapshot | |
4276 | * zc_cleanup_fd cleanup-on-exit file descriptor for calling process | |
4277 | * | |
4278 | * outputs: | |
4279 | */ | |
4280 | static int | |
4281 | zfs_ioc_tmp_snapshot(zfs_cmd_t *zc) | |
4282 | { | |
4283 | char *snap_name; | |
4284 | int error; | |
4285 | ||
4286 | snap_name = kmem_asprintf("%s-%016llx", zc->zc_value, | |
4287 | (u_longlong_t)ddi_get_lbolt64()); | |
4288 | ||
4289 | if (strlen(snap_name) >= MAXNAMELEN) { | |
4290 | strfree(snap_name); | |
4291 | return (E2BIG); | |
4292 | } | |
4293 | ||
4294 | error = dmu_objset_snapshot(zc->zc_name, snap_name, snap_name, | |
4295 | NULL, B_FALSE, B_TRUE, zc->zc_cleanup_fd); | |
4296 | if (error != 0) { | |
4297 | strfree(snap_name); | |
4298 | return (error); | |
4299 | } | |
4300 | ||
4301 | (void) strcpy(zc->zc_value, snap_name); | |
4302 | strfree(snap_name); | |
4303 | return (0); | |
4304 | } | |
4305 | ||
4306 | /* | |
4307 | * inputs: | |
4308 | * zc_name name of "to" snapshot | |
4309 | * zc_value name of "from" snapshot | |
4310 | * zc_cookie file descriptor to write diff data on | |
4311 | * | |
4312 | * outputs: | |
4313 | * dmu_diff_record_t's to the file descriptor | |
4314 | */ | |
4315 | static int | |
4316 | zfs_ioc_diff(zfs_cmd_t *zc) | |
4317 | { | |
4318 | objset_t *fromsnap; | |
4319 | objset_t *tosnap; | |
4320 | file_t *fp; | |
4321 | offset_t off; | |
4322 | int error; | |
4323 | ||
4324 | error = dmu_objset_hold(zc->zc_name, FTAG, &tosnap); | |
4325 | if (error) | |
4326 | return (error); | |
4327 | ||
4328 | error = dmu_objset_hold(zc->zc_value, FTAG, &fromsnap); | |
4329 | if (error) { | |
4330 | dmu_objset_rele(tosnap, FTAG); | |
4331 | return (error); | |
4332 | } | |
4333 | ||
4334 | fp = getf(zc->zc_cookie); | |
4335 | if (fp == NULL) { | |
4336 | dmu_objset_rele(fromsnap, FTAG); | |
4337 | dmu_objset_rele(tosnap, FTAG); | |
4338 | return (EBADF); | |
4339 | } | |
4340 | ||
4341 | off = fp->f_offset; | |
4342 | ||
4343 | error = dmu_diff(tosnap, fromsnap, fp->f_vnode, &off); | |
4344 | ||
4345 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
4346 | fp->f_offset = off; | |
4347 | releasef(zc->zc_cookie); | |
4348 | ||
4349 | dmu_objset_rele(fromsnap, FTAG); | |
4350 | dmu_objset_rele(tosnap, FTAG); | |
4351 | return (error); | |
4352 | } | |
4353 | ||
9babb374 BB |
4354 | /* |
4355 | * Remove all ACL files in shares dir | |
4356 | */ | |
4357 | static int | |
4358 | zfs_smb_acl_purge(znode_t *dzp) | |
4359 | { | |
4360 | zap_cursor_t zc; | |
4361 | zap_attribute_t zap; | |
4362 | zfsvfs_t *zfsvfs = dzp->z_zfsvfs; | |
4363 | int error; | |
4364 | ||
4365 | for (zap_cursor_init(&zc, zfsvfs->z_os, dzp->z_id); | |
4366 | (error = zap_cursor_retrieve(&zc, &zap)) == 0; | |
4367 | zap_cursor_advance(&zc)) { | |
4368 | if ((error = VOP_REMOVE(ZTOV(dzp), zap.za_name, kcred, | |
4369 | NULL, 0)) != 0) | |
4370 | break; | |
4371 | } | |
4372 | zap_cursor_fini(&zc); | |
4373 | return (error); | |
4374 | } | |
4375 | ||
4376 | static int | |
4377 | zfs_ioc_smb_acl(zfs_cmd_t *zc) | |
4378 | { | |
4379 | vnode_t *vp; | |
4380 | znode_t *dzp; | |
4381 | vnode_t *resourcevp = NULL; | |
4382 | znode_t *sharedir; | |
4383 | zfsvfs_t *zfsvfs; | |
4384 | nvlist_t *nvlist; | |
4385 | char *src, *target; | |
4386 | vattr_t vattr; | |
4387 | vsecattr_t vsec; | |
4388 | int error = 0; | |
4389 | ||
4390 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
4391 | NO_FOLLOW, NULL, &vp)) != 0) | |
4392 | return (error); | |
4393 | ||
4394 | /* Now make sure mntpnt and dataset are ZFS */ | |
4395 | ||
4396 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
4397 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
4398 | zc->zc_name) != 0)) { | |
4399 | VN_RELE(vp); | |
4400 | return (EINVAL); | |
4401 | } | |
4402 | ||
4403 | dzp = VTOZ(vp); | |
4404 | zfsvfs = dzp->z_zfsvfs; | |
4405 | ZFS_ENTER(zfsvfs); | |
4406 | ||
4407 | /* | |
4408 | * Create share dir if its missing. | |
4409 | */ | |
4410 | mutex_enter(&zfsvfs->z_lock); | |
4411 | if (zfsvfs->z_shares_dir == 0) { | |
4412 | dmu_tx_t *tx; | |
4413 | ||
4414 | tx = dmu_tx_create(zfsvfs->z_os); | |
4415 | dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, TRUE, | |
4416 | ZFS_SHARES_DIR); | |
4417 | dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL); | |
4418 | error = dmu_tx_assign(tx, TXG_WAIT); | |
4419 | if (error) { | |
4420 | dmu_tx_abort(tx); | |
4421 | } else { | |
4422 | error = zfs_create_share_dir(zfsvfs, tx); | |
4423 | dmu_tx_commit(tx); | |
4424 | } | |
4425 | if (error) { | |
4426 | mutex_exit(&zfsvfs->z_lock); | |
4427 | VN_RELE(vp); | |
4428 | ZFS_EXIT(zfsvfs); | |
4429 | return (error); | |
4430 | } | |
4431 | } | |
4432 | mutex_exit(&zfsvfs->z_lock); | |
4433 | ||
4434 | ASSERT(zfsvfs->z_shares_dir); | |
4435 | if ((error = zfs_zget(zfsvfs, zfsvfs->z_shares_dir, &sharedir)) != 0) { | |
4436 | VN_RELE(vp); | |
4437 | ZFS_EXIT(zfsvfs); | |
4438 | return (error); | |
4439 | } | |
4440 | ||
4441 | switch (zc->zc_cookie) { | |
4442 | case ZFS_SMB_ACL_ADD: | |
4443 | vattr.va_mask = AT_MODE|AT_UID|AT_GID|AT_TYPE; | |
4444 | vattr.va_type = VREG; | |
4445 | vattr.va_mode = S_IFREG|0777; | |
4446 | vattr.va_uid = 0; | |
4447 | vattr.va_gid = 0; | |
4448 | ||
4449 | vsec.vsa_mask = VSA_ACE; | |
4450 | vsec.vsa_aclentp = &full_access; | |
4451 | vsec.vsa_aclentsz = sizeof (full_access); | |
4452 | vsec.vsa_aclcnt = 1; | |
4453 | ||
4454 | error = VOP_CREATE(ZTOV(sharedir), zc->zc_string, | |
4455 | &vattr, EXCL, 0, &resourcevp, kcred, 0, NULL, &vsec); | |
4456 | if (resourcevp) | |
4457 | VN_RELE(resourcevp); | |
4458 | break; | |
4459 | ||
4460 | case ZFS_SMB_ACL_REMOVE: | |
4461 | error = VOP_REMOVE(ZTOV(sharedir), zc->zc_string, kcred, | |
4462 | NULL, 0); | |
4463 | break; | |
4464 | ||
4465 | case ZFS_SMB_ACL_RENAME: | |
4466 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
4467 | zc->zc_nvlist_src_size, zc->zc_iflags, &nvlist)) != 0) { | |
4468 | VN_RELE(vp); | |
4469 | ZFS_EXIT(zfsvfs); | |
4470 | return (error); | |
4471 | } | |
4472 | if (nvlist_lookup_string(nvlist, ZFS_SMB_ACL_SRC, &src) || | |
4473 | nvlist_lookup_string(nvlist, ZFS_SMB_ACL_TARGET, | |
4474 | &target)) { | |
4475 | VN_RELE(vp); | |
4476 | VN_RELE(ZTOV(sharedir)); | |
4477 | ZFS_EXIT(zfsvfs); | |
428870ff | 4478 | nvlist_free(nvlist); |
9babb374 BB |
4479 | return (error); |
4480 | } | |
4481 | error = VOP_RENAME(ZTOV(sharedir), src, ZTOV(sharedir), target, | |
4482 | kcred, NULL, 0); | |
4483 | nvlist_free(nvlist); | |
4484 | break; | |
4485 | ||
4486 | case ZFS_SMB_ACL_PURGE: | |
4487 | error = zfs_smb_acl_purge(sharedir); | |
4488 | break; | |
4489 | ||
4490 | default: | |
4491 | error = EINVAL; | |
4492 | break; | |
4493 | } | |
4494 | ||
4495 | VN_RELE(vp); | |
4496 | VN_RELE(ZTOV(sharedir)); | |
4497 | ||
4498 | ZFS_EXIT(zfsvfs); | |
4499 | ||
4500 | return (error); | |
4501 | } | |
4502 | ||
45d1cae3 BB |
4503 | /* |
4504 | * inputs: | |
572e2857 BB |
4505 | * zc_name name of filesystem |
4506 | * zc_value short name of snap | |
4507 | * zc_string user-supplied tag for this hold | |
4508 | * zc_cookie recursive flag | |
4509 | * zc_temphold set if hold is temporary | |
4510 | * zc_cleanup_fd cleanup-on-exit file descriptor for calling process | |
4511 | * zc_sendobj if non-zero, the objid for zc_name@zc_value | |
4512 | * zc_createtxg if zc_sendobj is non-zero, snap must have zc_createtxg | |
45d1cae3 BB |
4513 | * |
4514 | * outputs: none | |
4515 | */ | |
4516 | static int | |
4517 | zfs_ioc_hold(zfs_cmd_t *zc) | |
4518 | { | |
4519 | boolean_t recursive = zc->zc_cookie; | |
572e2857 BB |
4520 | spa_t *spa; |
4521 | dsl_pool_t *dp; | |
4522 | dsl_dataset_t *ds; | |
4523 | int error; | |
4524 | minor_t minor = 0; | |
45d1cae3 BB |
4525 | |
4526 | if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0) | |
4527 | return (EINVAL); | |
4528 | ||
572e2857 BB |
4529 | if (zc->zc_sendobj == 0) { |
4530 | return (dsl_dataset_user_hold(zc->zc_name, zc->zc_value, | |
4531 | zc->zc_string, recursive, zc->zc_temphold, | |
4532 | zc->zc_cleanup_fd)); | |
4533 | } | |
4534 | ||
4535 | if (recursive) | |
4536 | return (EINVAL); | |
4537 | ||
4538 | error = spa_open(zc->zc_name, &spa, FTAG); | |
4539 | if (error) | |
4540 | return (error); | |
4541 | ||
4542 | dp = spa_get_dsl(spa); | |
4543 | rw_enter(&dp->dp_config_rwlock, RW_READER); | |
4544 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds); | |
4545 | rw_exit(&dp->dp_config_rwlock); | |
4546 | spa_close(spa, FTAG); | |
4547 | if (error) | |
4548 | return (error); | |
4549 | ||
4550 | /* | |
4551 | * Until we have a hold on this snapshot, it's possible that | |
4552 | * zc_sendobj could've been destroyed and reused as part | |
4553 | * of a later txg. Make sure we're looking at the right object. | |
4554 | */ | |
4555 | if (zc->zc_createtxg != ds->ds_phys->ds_creation_txg) { | |
4556 | dsl_dataset_rele(ds, FTAG); | |
4557 | return (ENOENT); | |
4558 | } | |
4559 | ||
4560 | if (zc->zc_cleanup_fd != -1 && zc->zc_temphold) { | |
4561 | error = zfs_onexit_fd_hold(zc->zc_cleanup_fd, &minor); | |
4562 | if (error) { | |
4563 | dsl_dataset_rele(ds, FTAG); | |
4564 | return (error); | |
4565 | } | |
4566 | } | |
4567 | ||
4568 | error = dsl_dataset_user_hold_for_send(ds, zc->zc_string, | |
4569 | zc->zc_temphold); | |
4570 | if (minor != 0) { | |
4571 | if (error == 0) { | |
4572 | dsl_register_onexit_hold_cleanup(ds, zc->zc_string, | |
4573 | minor); | |
4574 | } | |
4575 | zfs_onexit_fd_rele(zc->zc_cleanup_fd); | |
4576 | } | |
4577 | dsl_dataset_rele(ds, FTAG); | |
4578 | ||
4579 | return (error); | |
45d1cae3 BB |
4580 | } |
4581 | ||
4582 | /* | |
4583 | * inputs: | |
572e2857 | 4584 | * zc_name name of dataset from which we're releasing a user hold |
45d1cae3 | 4585 | * zc_value short name of snap |
572e2857 | 4586 | * zc_string user-supplied tag for this hold |
45d1cae3 BB |
4587 | * zc_cookie recursive flag |
4588 | * | |
572e2857 | 4589 | * outputs: none |
45d1cae3 BB |
4590 | */ |
4591 | static int | |
4592 | zfs_ioc_release(zfs_cmd_t *zc) | |
4593 | { | |
4594 | boolean_t recursive = zc->zc_cookie; | |
4595 | ||
4596 | if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0) | |
4597 | return (EINVAL); | |
4598 | ||
4599 | return (dsl_dataset_user_release(zc->zc_name, zc->zc_value, | |
4600 | zc->zc_string, recursive)); | |
4601 | } | |
4602 | ||
4603 | /* | |
4604 | * inputs: | |
4605 | * zc_name name of filesystem | |
4606 | * | |
4607 | * outputs: | |
4608 | * zc_nvlist_src{_size} nvlist of snapshot holds | |
4609 | */ | |
4610 | static int | |
4611 | zfs_ioc_get_holds(zfs_cmd_t *zc) | |
4612 | { | |
4613 | nvlist_t *nvp; | |
4614 | int error; | |
4615 | ||
4616 | if ((error = dsl_dataset_get_holds(zc->zc_name, &nvp)) == 0) { | |
4617 | error = put_nvlist(zc, nvp); | |
4618 | nvlist_free(nvp); | |
4619 | } | |
4620 | ||
4621 | return (error); | |
4622 | } | |
4623 | ||
34dc7c2f BB |
4624 | /* |
4625 | * pool create, destroy, and export don't log the history as part of | |
4626 | * zfsdev_ioctl, but rather zfs_ioc_pool_create, and zfs_ioc_pool_export | |
4627 | * do the logging of those commands. | |
4628 | */ | |
4629 | static zfs_ioc_vec_t zfs_ioc_vec[] = { | |
9babb374 | 4630 | { zfs_ioc_pool_create, zfs_secpolicy_config, POOL_NAME, B_FALSE, |
572e2857 | 4631 | POOL_CHECK_NONE }, |
9babb374 | 4632 | { zfs_ioc_pool_destroy, zfs_secpolicy_config, POOL_NAME, B_FALSE, |
572e2857 | 4633 | POOL_CHECK_NONE }, |
9babb374 | 4634 | { zfs_ioc_pool_import, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4635 | POOL_CHECK_NONE }, |
9babb374 | 4636 | { zfs_ioc_pool_export, zfs_secpolicy_config, POOL_NAME, B_FALSE, |
572e2857 | 4637 | POOL_CHECK_NONE }, |
9babb374 | 4638 | { zfs_ioc_pool_configs, zfs_secpolicy_none, NO_NAME, B_FALSE, |
572e2857 | 4639 | POOL_CHECK_NONE }, |
9babb374 | 4640 | { zfs_ioc_pool_stats, zfs_secpolicy_read, POOL_NAME, B_FALSE, |
572e2857 | 4641 | POOL_CHECK_NONE }, |
9babb374 | 4642 | { zfs_ioc_pool_tryimport, zfs_secpolicy_config, NO_NAME, B_FALSE, |
572e2857 | 4643 | POOL_CHECK_NONE }, |
428870ff | 4644 | { zfs_ioc_pool_scan, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4645 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4646 | { zfs_ioc_pool_freeze, zfs_secpolicy_config, NO_NAME, B_FALSE, |
572e2857 | 4647 | POOL_CHECK_READONLY }, |
9babb374 | 4648 | { zfs_ioc_pool_upgrade, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4649 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4650 | { zfs_ioc_pool_get_history, zfs_secpolicy_config, POOL_NAME, B_FALSE, |
572e2857 | 4651 | POOL_CHECK_NONE }, |
9babb374 | 4652 | { zfs_ioc_vdev_add, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4653 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4654 | { zfs_ioc_vdev_remove, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4655 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4656 | { zfs_ioc_vdev_set_state, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4657 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4658 | { zfs_ioc_vdev_attach, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4659 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4660 | { zfs_ioc_vdev_detach, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4661 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4662 | { zfs_ioc_vdev_setpath, zfs_secpolicy_config, POOL_NAME, B_FALSE, |
572e2857 | 4663 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4664 | { zfs_ioc_vdev_setfru, zfs_secpolicy_config, POOL_NAME, B_FALSE, |
572e2857 | 4665 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4666 | { zfs_ioc_objset_stats, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 | 4667 | POOL_CHECK_SUSPENDED }, |
9babb374 | 4668 | { zfs_ioc_objset_zplprops, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 | 4669 | POOL_CHECK_NONE }, |
9babb374 | 4670 | { zfs_ioc_dataset_list_next, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 | 4671 | POOL_CHECK_SUSPENDED }, |
9babb374 | 4672 | { zfs_ioc_snapshot_list_next, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 BB |
4673 | POOL_CHECK_SUSPENDED }, |
4674 | { zfs_ioc_set_prop, zfs_secpolicy_none, DATASET_NAME, B_TRUE, | |
4675 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
4676 | { zfs_ioc_create, zfs_secpolicy_create, DATASET_NAME, B_TRUE, | |
4677 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
9babb374 | 4678 | { zfs_ioc_destroy, zfs_secpolicy_destroy, DATASET_NAME, B_TRUE, |
572e2857 | 4679 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4680 | { zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME, B_TRUE, |
572e2857 BB |
4681 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
4682 | { zfs_ioc_rename, zfs_secpolicy_rename, DATASET_NAME, B_TRUE, | |
4683 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
4684 | { zfs_ioc_recv, zfs_secpolicy_receive, DATASET_NAME, B_TRUE, | |
4685 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
4686 | { zfs_ioc_send, zfs_secpolicy_send, DATASET_NAME, B_TRUE, | |
4687 | POOL_CHECK_NONE }, | |
9babb374 | 4688 | { zfs_ioc_inject_fault, zfs_secpolicy_inject, NO_NAME, B_FALSE, |
572e2857 | 4689 | POOL_CHECK_NONE }, |
9babb374 | 4690 | { zfs_ioc_clear_fault, zfs_secpolicy_inject, NO_NAME, B_FALSE, |
572e2857 | 4691 | POOL_CHECK_NONE }, |
9babb374 | 4692 | { zfs_ioc_inject_list_next, zfs_secpolicy_inject, NO_NAME, B_FALSE, |
572e2857 | 4693 | POOL_CHECK_NONE }, |
9babb374 | 4694 | { zfs_ioc_error_log, zfs_secpolicy_inject, POOL_NAME, B_FALSE, |
572e2857 BB |
4695 | POOL_CHECK_NONE }, |
4696 | { zfs_ioc_clear, zfs_secpolicy_config, POOL_NAME, B_TRUE, | |
4697 | POOL_CHECK_NONE }, | |
9babb374 | 4698 | { zfs_ioc_promote, zfs_secpolicy_promote, DATASET_NAME, B_TRUE, |
572e2857 | 4699 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
428870ff | 4700 | { zfs_ioc_destroy_snaps, zfs_secpolicy_destroy_snaps, DATASET_NAME, |
572e2857 | 4701 | B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4702 | { zfs_ioc_snapshot, zfs_secpolicy_snapshot, DATASET_NAME, B_TRUE, |
572e2857 BB |
4703 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
4704 | { zfs_ioc_dsobj_to_dsname, zfs_secpolicy_diff, POOL_NAME, B_FALSE, | |
4705 | POOL_CHECK_NONE }, | |
4706 | { zfs_ioc_obj_to_path, zfs_secpolicy_diff, DATASET_NAME, B_FALSE, | |
4707 | POOL_CHECK_SUSPENDED }, | |
9babb374 | 4708 | { zfs_ioc_pool_set_props, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4709 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4710 | { zfs_ioc_pool_get_props, zfs_secpolicy_read, POOL_NAME, B_FALSE, |
572e2857 | 4711 | POOL_CHECK_NONE }, |
9babb374 | 4712 | { zfs_ioc_set_fsacl, zfs_secpolicy_fsacl, DATASET_NAME, B_TRUE, |
572e2857 | 4713 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4714 | { zfs_ioc_get_fsacl, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 BB |
4715 | POOL_CHECK_NONE }, |
4716 | { zfs_ioc_share, zfs_secpolicy_share, DATASET_NAME, B_FALSE, | |
4717 | POOL_CHECK_NONE }, | |
9babb374 | 4718 | { zfs_ioc_inherit_prop, zfs_secpolicy_inherit, DATASET_NAME, B_TRUE, |
572e2857 | 4719 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4720 | { zfs_ioc_smb_acl, zfs_secpolicy_smb_acl, DATASET_NAME, B_FALSE, |
572e2857 BB |
4721 | POOL_CHECK_NONE }, |
4722 | { zfs_ioc_userspace_one, zfs_secpolicy_userspace_one, DATASET_NAME, | |
4723 | B_FALSE, POOL_CHECK_NONE }, | |
4724 | { zfs_ioc_userspace_many, zfs_secpolicy_userspace_many, DATASET_NAME, | |
4725 | B_FALSE, POOL_CHECK_NONE }, | |
9babb374 | 4726 | { zfs_ioc_userspace_upgrade, zfs_secpolicy_userspace_upgrade, |
572e2857 BB |
4727 | DATASET_NAME, B_FALSE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
4728 | { zfs_ioc_hold, zfs_secpolicy_hold, DATASET_NAME, B_TRUE, | |
4729 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
45d1cae3 | 4730 | { zfs_ioc_release, zfs_secpolicy_release, DATASET_NAME, B_TRUE, |
572e2857 | 4731 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
45d1cae3 | 4732 | { zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 | 4733 | POOL_CHECK_SUSPENDED }, |
428870ff | 4734 | { zfs_ioc_objset_recvd_props, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 | 4735 | POOL_CHECK_NONE }, |
428870ff | 4736 | { zfs_ioc_vdev_split, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 BB |
4737 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
4738 | { zfs_ioc_next_obj, zfs_secpolicy_read, DATASET_NAME, B_FALSE, | |
4739 | POOL_CHECK_NONE }, | |
4740 | { zfs_ioc_diff, zfs_secpolicy_diff, DATASET_NAME, B_FALSE, | |
4741 | POOL_CHECK_NONE }, | |
4742 | { zfs_ioc_tmp_snapshot, zfs_secpolicy_tmp_snapshot, DATASET_NAME, | |
4743 | B_FALSE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
4744 | { zfs_ioc_obj_to_stats, zfs_secpolicy_diff, DATASET_NAME, B_FALSE, | |
4745 | POOL_CHECK_SUSPENDED } | |
34dc7c2f BB |
4746 | }; |
4747 | ||
9babb374 | 4748 | int |
572e2857 BB |
4749 | pool_status_check(const char *name, zfs_ioc_namecheck_t type, |
4750 | zfs_ioc_poolcheck_t check) | |
9babb374 BB |
4751 | { |
4752 | spa_t *spa; | |
4753 | int error; | |
4754 | ||
4755 | ASSERT(type == POOL_NAME || type == DATASET_NAME); | |
4756 | ||
572e2857 BB |
4757 | if (check & POOL_CHECK_NONE) |
4758 | return (0); | |
4759 | ||
9babb374 BB |
4760 | error = spa_open(name, &spa, FTAG); |
4761 | if (error == 0) { | |
572e2857 | 4762 | if ((check & POOL_CHECK_SUSPENDED) && spa_suspended(spa)) |
9babb374 | 4763 | error = EAGAIN; |
572e2857 BB |
4764 | else if ((check & POOL_CHECK_READONLY) && !spa_writeable(spa)) |
4765 | error = EROFS; | |
9babb374 BB |
4766 | spa_close(spa, FTAG); |
4767 | } | |
4768 | return (error); | |
4769 | } | |
4770 | ||
572e2857 BB |
4771 | /* |
4772 | * Find a free minor number. | |
4773 | */ | |
4774 | minor_t | |
4775 | zfsdev_minor_alloc(void) | |
4776 | { | |
4777 | static minor_t last_minor; | |
4778 | minor_t m; | |
4779 | ||
4780 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
4781 | ||
4782 | for (m = last_minor + 1; m != last_minor; m++) { | |
4783 | if (m > ZFSDEV_MAX_MINOR) | |
4784 | m = 1; | |
4785 | if (ddi_get_soft_state(zfsdev_state, m) == NULL) { | |
4786 | last_minor = m; | |
4787 | return (m); | |
4788 | } | |
4789 | } | |
4790 | ||
4791 | return (0); | |
4792 | } | |
4793 | ||
4794 | static int | |
4795 | zfs_ctldev_init(dev_t *devp) | |
4796 | { | |
4797 | minor_t minor; | |
4798 | zfs_soft_state_t *zs; | |
4799 | ||
4800 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
4801 | ASSERT(getminor(*devp) == 0); | |
4802 | ||
4803 | minor = zfsdev_minor_alloc(); | |
4804 | if (minor == 0) | |
4805 | return (ENXIO); | |
4806 | ||
4807 | if (ddi_soft_state_zalloc(zfsdev_state, minor) != DDI_SUCCESS) | |
4808 | return (EAGAIN); | |
4809 | ||
4810 | *devp = makedevice(getemajor(*devp), minor); | |
4811 | ||
4812 | zs = ddi_get_soft_state(zfsdev_state, minor); | |
4813 | zs->zss_type = ZSST_CTLDEV; | |
4814 | zfs_onexit_init((zfs_onexit_t **)&zs->zss_data); | |
4815 | ||
4816 | return (0); | |
4817 | } | |
4818 | ||
4819 | static void | |
4820 | zfs_ctldev_destroy(zfs_onexit_t *zo, minor_t minor) | |
4821 | { | |
4822 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
4823 | ||
4824 | zfs_onexit_destroy(zo); | |
4825 | ddi_soft_state_free(zfsdev_state, minor); | |
4826 | } | |
4827 | ||
4828 | void * | |
4829 | zfsdev_get_soft_state(minor_t minor, enum zfs_soft_state_type which) | |
4830 | { | |
4831 | zfs_soft_state_t *zp; | |
4832 | ||
4833 | zp = ddi_get_soft_state(zfsdev_state, minor); | |
4834 | if (zp == NULL || zp->zss_type != which) | |
4835 | return (NULL); | |
4836 | ||
4837 | return (zp->zss_data); | |
4838 | } | |
4839 | ||
4840 | static int | |
4841 | zfsdev_open(dev_t *devp, int flag, int otyp, cred_t *cr) | |
4842 | { | |
4843 | int error = 0; | |
4844 | ||
4845 | if (getminor(*devp) != 0) | |
4846 | return (zvol_open(devp, flag, otyp, cr)); | |
4847 | ||
4848 | /* This is the control device. Allocate a new minor if requested. */ | |
4849 | if (flag & FEXCL) { | |
4850 | mutex_enter(&zfsdev_state_lock); | |
4851 | error = zfs_ctldev_init(devp); | |
4852 | mutex_exit(&zfsdev_state_lock); | |
4853 | } | |
4854 | ||
4855 | return (error); | |
4856 | } | |
4857 | ||
4858 | static int | |
4859 | zfsdev_close(dev_t dev, int flag, int otyp, cred_t *cr) | |
4860 | { | |
4861 | zfs_onexit_t *zo; | |
4862 | minor_t minor = getminor(dev); | |
4863 | ||
4864 | if (minor == 0) | |
4865 | return (0); | |
4866 | ||
4867 | mutex_enter(&zfsdev_state_lock); | |
4868 | zo = zfsdev_get_soft_state(minor, ZSST_CTLDEV); | |
4869 | if (zo == NULL) { | |
4870 | mutex_exit(&zfsdev_state_lock); | |
4871 | return (zvol_close(dev, flag, otyp, cr)); | |
4872 | } | |
4873 | zfs_ctldev_destroy(zo, minor); | |
4874 | mutex_exit(&zfsdev_state_lock); | |
4875 | ||
4876 | return (0); | |
4877 | } | |
4878 | ||
34dc7c2f BB |
4879 | static int |
4880 | zfsdev_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr, int *rvalp) | |
4881 | { | |
4882 | zfs_cmd_t *zc; | |
4883 | uint_t vec; | |
4884 | int error, rc; | |
572e2857 | 4885 | minor_t minor = getminor(dev); |
34dc7c2f | 4886 | |
572e2857 BB |
4887 | if (minor != 0 && |
4888 | zfsdev_get_soft_state(minor, ZSST_CTLDEV) == NULL) | |
34dc7c2f BB |
4889 | return (zvol_ioctl(dev, cmd, arg, flag, cr, rvalp)); |
4890 | ||
4891 | vec = cmd - ZFS_IOC; | |
4892 | ASSERT3U(getmajor(dev), ==, ddi_driver_major(zfs_dip)); | |
4893 | ||
4894 | if (vec >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0])) | |
4895 | return (EINVAL); | |
4896 | ||
4897 | zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); | |
4898 | ||
9babb374 | 4899 | error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag); |
428870ff BB |
4900 | if (error != 0) |
4901 | error = EFAULT; | |
34dc7c2f | 4902 | |
428870ff | 4903 | if ((error == 0) && !(flag & FKIOCTL)) |
34dc7c2f BB |
4904 | error = zfs_ioc_vec[vec].zvec_secpolicy(zc, cr); |
4905 | ||
4906 | /* | |
4907 | * Ensure that all pool/dataset names are valid before we pass down to | |
4908 | * the lower layers. | |
4909 | */ | |
4910 | if (error == 0) { | |
4911 | zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; | |
9babb374 | 4912 | zc->zc_iflags = flag & FKIOCTL; |
34dc7c2f BB |
4913 | switch (zfs_ioc_vec[vec].zvec_namecheck) { |
4914 | case POOL_NAME: | |
4915 | if (pool_namecheck(zc->zc_name, NULL, NULL) != 0) | |
4916 | error = EINVAL; | |
572e2857 BB |
4917 | error = pool_status_check(zc->zc_name, |
4918 | zfs_ioc_vec[vec].zvec_namecheck, | |
4919 | zfs_ioc_vec[vec].zvec_pool_check); | |
34dc7c2f BB |
4920 | break; |
4921 | ||
4922 | case DATASET_NAME: | |
4923 | if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0) | |
4924 | error = EINVAL; | |
572e2857 BB |
4925 | error = pool_status_check(zc->zc_name, |
4926 | zfs_ioc_vec[vec].zvec_namecheck, | |
4927 | zfs_ioc_vec[vec].zvec_pool_check); | |
34dc7c2f BB |
4928 | break; |
4929 | ||
4930 | case NO_NAME: | |
4931 | break; | |
4932 | } | |
4933 | } | |
4934 | ||
4935 | if (error == 0) | |
4936 | error = zfs_ioc_vec[vec].zvec_func(zc); | |
4937 | ||
9babb374 | 4938 | rc = ddi_copyout(zc, (void *)arg, sizeof (zfs_cmd_t), flag); |
34dc7c2f | 4939 | if (error == 0) { |
428870ff BB |
4940 | if (rc != 0) |
4941 | error = EFAULT; | |
9babb374 | 4942 | if (zfs_ioc_vec[vec].zvec_his_log) |
34dc7c2f BB |
4943 | zfs_log_history(zc); |
4944 | } | |
4945 | ||
4946 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
4947 | return (error); | |
4948 | } | |
4949 | ||
4950 | static int | |
4951 | zfs_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) | |
4952 | { | |
4953 | if (cmd != DDI_ATTACH) | |
4954 | return (DDI_FAILURE); | |
4955 | ||
4956 | if (ddi_create_minor_node(dip, "zfs", S_IFCHR, 0, | |
4957 | DDI_PSEUDO, 0) == DDI_FAILURE) | |
4958 | return (DDI_FAILURE); | |
4959 | ||
4960 | zfs_dip = dip; | |
4961 | ||
4962 | ddi_report_dev(dip); | |
4963 | ||
4964 | return (DDI_SUCCESS); | |
4965 | } | |
4966 | ||
4967 | static int | |
4968 | zfs_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) | |
4969 | { | |
4970 | if (spa_busy() || zfs_busy() || zvol_busy()) | |
4971 | return (DDI_FAILURE); | |
4972 | ||
4973 | if (cmd != DDI_DETACH) | |
4974 | return (DDI_FAILURE); | |
4975 | ||
4976 | zfs_dip = NULL; | |
4977 | ||
4978 | ddi_prop_remove_all(dip); | |
4979 | ddi_remove_minor_node(dip, NULL); | |
4980 | ||
4981 | return (DDI_SUCCESS); | |
4982 | } | |
4983 | ||
4984 | /*ARGSUSED*/ | |
4985 | static int | |
4986 | zfs_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result) | |
4987 | { | |
4988 | switch (infocmd) { | |
4989 | case DDI_INFO_DEVT2DEVINFO: | |
4990 | *result = zfs_dip; | |
4991 | return (DDI_SUCCESS); | |
4992 | ||
4993 | case DDI_INFO_DEVT2INSTANCE: | |
4994 | *result = (void *)0; | |
4995 | return (DDI_SUCCESS); | |
4996 | } | |
4997 | ||
4998 | return (DDI_FAILURE); | |
4999 | } | |
5000 | ||
5001 | /* | |
5002 | * OK, so this is a little weird. | |
5003 | * | |
5004 | * /dev/zfs is the control node, i.e. minor 0. | |
5005 | * /dev/zvol/[r]dsk/pool/dataset are the zvols, minor > 0. | |
5006 | * | |
5007 | * /dev/zfs has basically nothing to do except serve up ioctls, | |
5008 | * so most of the standard driver entry points are in zvol.c. | |
5009 | */ | |
5010 | static struct cb_ops zfs_cb_ops = { | |
572e2857 BB |
5011 | zfsdev_open, /* open */ |
5012 | zfsdev_close, /* close */ | |
34dc7c2f BB |
5013 | zvol_strategy, /* strategy */ |
5014 | nodev, /* print */ | |
5015 | zvol_dump, /* dump */ | |
5016 | zvol_read, /* read */ | |
5017 | zvol_write, /* write */ | |
5018 | zfsdev_ioctl, /* ioctl */ | |
5019 | nodev, /* devmap */ | |
5020 | nodev, /* mmap */ | |
5021 | nodev, /* segmap */ | |
5022 | nochpoll, /* poll */ | |
5023 | ddi_prop_op, /* prop_op */ | |
5024 | NULL, /* streamtab */ | |
5025 | D_NEW | D_MP | D_64BIT, /* Driver compatibility flag */ | |
5026 | CB_REV, /* version */ | |
5027 | nodev, /* async read */ | |
5028 | nodev, /* async write */ | |
5029 | }; | |
5030 | ||
5031 | static struct dev_ops zfs_dev_ops = { | |
5032 | DEVO_REV, /* version */ | |
5033 | 0, /* refcnt */ | |
5034 | zfs_info, /* info */ | |
5035 | nulldev, /* identify */ | |
5036 | nulldev, /* probe */ | |
5037 | zfs_attach, /* attach */ | |
5038 | zfs_detach, /* detach */ | |
5039 | nodev, /* reset */ | |
5040 | &zfs_cb_ops, /* driver operations */ | |
b128c09f BB |
5041 | NULL, /* no bus operations */ |
5042 | NULL, /* power */ | |
5043 | ddi_quiesce_not_needed, /* quiesce */ | |
34dc7c2f BB |
5044 | }; |
5045 | ||
5046 | static struct modldrv zfs_modldrv = { | |
b128c09f BB |
5047 | &mod_driverops, |
5048 | "ZFS storage pool", | |
5049 | &zfs_dev_ops | |
34dc7c2f BB |
5050 | }; |
5051 | ||
5052 | static struct modlinkage modlinkage = { | |
5053 | MODREV_1, | |
5054 | (void *)&zfs_modlfs, | |
5055 | (void *)&zfs_modldrv, | |
5056 | NULL | |
5057 | }; | |
5058 | ||
5059 | ||
5060 | uint_t zfs_fsyncer_key; | |
5061 | extern uint_t rrw_tsd_key; | |
5062 | ||
5063 | int | |
5064 | _init(void) | |
5065 | { | |
5066 | int error; | |
5067 | ||
5068 | spa_init(FREAD | FWRITE); | |
5069 | zfs_init(); | |
5070 | zvol_init(); | |
5071 | ||
5072 | if ((error = mod_install(&modlinkage)) != 0) { | |
5073 | zvol_fini(); | |
5074 | zfs_fini(); | |
5075 | spa_fini(); | |
5076 | return (error); | |
5077 | } | |
5078 | ||
5079 | tsd_create(&zfs_fsyncer_key, NULL); | |
5080 | tsd_create(&rrw_tsd_key, NULL); | |
5081 | ||
5082 | error = ldi_ident_from_mod(&modlinkage, &zfs_li); | |
5083 | ASSERT(error == 0); | |
5084 | mutex_init(&zfs_share_lock, NULL, MUTEX_DEFAULT, NULL); | |
5085 | ||
5086 | return (0); | |
5087 | } | |
5088 | ||
5089 | int | |
5090 | _fini(void) | |
5091 | { | |
5092 | int error; | |
5093 | ||
5094 | if (spa_busy() || zfs_busy() || zvol_busy() || zio_injection_enabled) | |
5095 | return (EBUSY); | |
5096 | ||
5097 | if ((error = mod_remove(&modlinkage)) != 0) | |
5098 | return (error); | |
5099 | ||
5100 | zvol_fini(); | |
5101 | zfs_fini(); | |
5102 | spa_fini(); | |
5103 | if (zfs_nfsshare_inited) | |
5104 | (void) ddi_modclose(nfs_mod); | |
5105 | if (zfs_smbshare_inited) | |
5106 | (void) ddi_modclose(smbsrv_mod); | |
5107 | if (zfs_nfsshare_inited || zfs_smbshare_inited) | |
5108 | (void) ddi_modclose(sharefs_mod); | |
5109 | ||
5110 | tsd_destroy(&zfs_fsyncer_key); | |
5111 | ldi_ident_release(zfs_li); | |
5112 | zfs_li = NULL; | |
5113 | mutex_destroy(&zfs_share_lock); | |
5114 | ||
5115 | return (error); | |
5116 | } | |
5117 | ||
5118 | int | |
5119 | _info(struct modinfo *modinfop) | |
5120 | { | |
5121 | return (mod_info(&modlinkage, modinfop)); | |
5122 | } |