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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> | |
34dc7c2f | 61 | #include <sys/zfs_dir.h> |
572e2857 | 62 | #include <sys/zfs_onexit.h> |
34dc7c2f | 63 | #include <sys/zvol.h> |
428870ff | 64 | #include <sys/dsl_scan.h> |
34dc7c2f BB |
65 | #include <sharefs/share.h> |
66 | #include <sys/dmu_objset.h> | |
325f0235 BB |
67 | #include <sys/fm/util.h> |
68 | ||
69 | #include <linux/miscdevice.h> | |
34dc7c2f BB |
70 | |
71 | #include "zfs_namecheck.h" | |
72 | #include "zfs_prop.h" | |
73 | #include "zfs_deleg.h" | |
428870ff | 74 | #include "zfs_comutil.h" |
34dc7c2f | 75 | |
325f0235 BB |
76 | kmutex_t zfsdev_state_lock; |
77 | list_t zfsdev_state_list; | |
34dc7c2f BB |
78 | |
79 | extern void zfs_init(void); | |
80 | extern void zfs_fini(void); | |
81 | ||
34dc7c2f BB |
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 | ||
b8864a23 | 169 | if (zc->zc_history == 0) |
34dc7c2f BB |
170 | return (NULL); |
171 | ||
00b46022 | 172 | buf = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP | KM_NODEBUG); |
34dc7c2f BB |
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 | { |
d2c15e84 | 387 | #ifdef HAVE_MLSLABEL |
428870ff BB |
388 | char ds_hexsl[MAXNAMELEN]; |
389 | bslabel_t ds_sl, new_sl; | |
390 | boolean_t new_default = FALSE; | |
391 | uint64_t zoned; | |
392 | int needed_priv = -1; | |
393 | int error; | |
394 | ||
395 | /* First get the existing dataset label. */ | |
396 | error = dsl_prop_get(name, zfs_prop_to_name(ZFS_PROP_MLSLABEL), | |
397 | 1, sizeof (ds_hexsl), &ds_hexsl, NULL); | |
398 | if (error) | |
399 | return (EPERM); | |
400 | ||
401 | if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) | |
402 | new_default = TRUE; | |
403 | ||
404 | /* The label must be translatable */ | |
405 | if (!new_default && (hexstr_to_label(strval, &new_sl) != 0)) | |
406 | return (EINVAL); | |
407 | ||
408 | /* | |
409 | * In a non-global zone, disallow attempts to set a label that | |
410 | * doesn't match that of the zone; otherwise no other checks | |
411 | * are needed. | |
412 | */ | |
413 | if (!INGLOBALZONE(curproc)) { | |
414 | if (new_default || !blequal(&new_sl, CR_SL(CRED()))) | |
415 | return (EPERM); | |
416 | return (0); | |
417 | } | |
418 | ||
419 | /* | |
420 | * For global-zone datasets (i.e., those whose zoned property is | |
421 | * "off", verify that the specified new label is valid for the | |
422 | * global zone. | |
423 | */ | |
424 | if (dsl_prop_get_integer(name, | |
425 | zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL)) | |
426 | return (EPERM); | |
427 | if (!zoned) { | |
428 | if (zfs_check_global_label(name, strval) != 0) | |
429 | return (EPERM); | |
430 | } | |
431 | ||
432 | /* | |
433 | * If the existing dataset label is nondefault, check if the | |
434 | * dataset is mounted (label cannot be changed while mounted). | |
3558fd73 | 435 | * Get the zfs_sb_t; if there isn't one, then the dataset isn't |
428870ff BB |
436 | * mounted (or isn't a dataset, doesn't exist, ...). |
437 | */ | |
438 | if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) != 0) { | |
439 | objset_t *os; | |
440 | static char *setsl_tag = "setsl_tag"; | |
441 | ||
442 | /* | |
443 | * Try to own the dataset; abort if there is any error, | |
444 | * (e.g., already mounted, in use, or other error). | |
445 | */ | |
446 | error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE, | |
447 | setsl_tag, &os); | |
448 | if (error) | |
449 | return (EPERM); | |
450 | ||
451 | dmu_objset_disown(os, setsl_tag); | |
452 | ||
453 | if (new_default) { | |
454 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
455 | goto out_check; | |
456 | } | |
457 | ||
458 | if (hexstr_to_label(strval, &new_sl) != 0) | |
459 | return (EPERM); | |
460 | ||
461 | if (blstrictdom(&ds_sl, &new_sl)) | |
462 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
463 | else if (blstrictdom(&new_sl, &ds_sl)) | |
464 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
465 | } else { | |
466 | /* dataset currently has a default label */ | |
467 | if (!new_default) | |
468 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
469 | } | |
470 | ||
471 | out_check: | |
472 | if (needed_priv != -1) | |
473 | return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL)); | |
474 | return (0); | |
d2c15e84 BB |
475 | #else |
476 | return ENOTSUP; | |
477 | #endif /* HAVE_MLSLABEL */ | |
428870ff BB |
478 | } |
479 | ||
480 | static int | |
481 | zfs_secpolicy_setprop(const char *dsname, zfs_prop_t prop, nvpair_t *propval, | |
482 | cred_t *cr) | |
483 | { | |
484 | char *strval; | |
485 | ||
34dc7c2f BB |
486 | /* |
487 | * Check permissions for special properties. | |
488 | */ | |
489 | switch (prop) { | |
e75c13c3 BB |
490 | default: |
491 | break; | |
34dc7c2f BB |
492 | case ZFS_PROP_ZONED: |
493 | /* | |
494 | * Disallow setting of 'zoned' from within a local zone. | |
495 | */ | |
496 | if (!INGLOBALZONE(curproc)) | |
497 | return (EPERM); | |
498 | break; | |
499 | ||
500 | case ZFS_PROP_QUOTA: | |
501 | if (!INGLOBALZONE(curproc)) { | |
502 | uint64_t zoned; | |
503 | char setpoint[MAXNAMELEN]; | |
504 | /* | |
505 | * Unprivileged users are allowed to modify the | |
506 | * quota on things *under* (ie. contained by) | |
507 | * the thing they own. | |
508 | */ | |
428870ff | 509 | if (dsl_prop_get_integer(dsname, "zoned", &zoned, |
34dc7c2f BB |
510 | setpoint)) |
511 | return (EPERM); | |
428870ff | 512 | if (!zoned || strlen(dsname) <= strlen(setpoint)) |
34dc7c2f BB |
513 | return (EPERM); |
514 | } | |
515 | break; | |
428870ff BB |
516 | |
517 | case ZFS_PROP_MLSLABEL: | |
518 | if (!is_system_labeled()) | |
519 | return (EPERM); | |
520 | ||
521 | if (nvpair_value_string(propval, &strval) == 0) { | |
522 | int err; | |
523 | ||
524 | err = zfs_set_slabel_policy(dsname, strval, CRED()); | |
525 | if (err != 0) | |
526 | return (err); | |
527 | } | |
528 | break; | |
34dc7c2f BB |
529 | } |
530 | ||
428870ff | 531 | return (zfs_secpolicy_write_perms(dsname, zfs_prop_to_name(prop), cr)); |
34dc7c2f BB |
532 | } |
533 | ||
534 | int | |
535 | zfs_secpolicy_fsacl(zfs_cmd_t *zc, cred_t *cr) | |
536 | { | |
537 | int error; | |
538 | ||
539 | error = zfs_dozonecheck(zc->zc_name, cr); | |
540 | if (error) | |
541 | return (error); | |
542 | ||
543 | /* | |
544 | * permission to set permissions will be evaluated later in | |
545 | * dsl_deleg_can_allow() | |
546 | */ | |
547 | return (0); | |
548 | } | |
549 | ||
550 | int | |
551 | zfs_secpolicy_rollback(zfs_cmd_t *zc, cred_t *cr) | |
552 | { | |
428870ff BB |
553 | return (zfs_secpolicy_write_perms(zc->zc_name, |
554 | ZFS_DELEG_PERM_ROLLBACK, cr)); | |
34dc7c2f BB |
555 | } |
556 | ||
557 | int | |
558 | zfs_secpolicy_send(zfs_cmd_t *zc, cred_t *cr) | |
559 | { | |
572e2857 BB |
560 | spa_t *spa; |
561 | dsl_pool_t *dp; | |
562 | dsl_dataset_t *ds; | |
563 | char *cp; | |
564 | int error; | |
565 | ||
566 | /* | |
567 | * Generate the current snapshot name from the given objsetid, then | |
568 | * use that name for the secpolicy/zone checks. | |
569 | */ | |
570 | cp = strchr(zc->zc_name, '@'); | |
571 | if (cp == NULL) | |
572 | return (EINVAL); | |
573 | error = spa_open(zc->zc_name, &spa, FTAG); | |
574 | if (error) | |
575 | return (error); | |
576 | ||
577 | dp = spa_get_dsl(spa); | |
578 | rw_enter(&dp->dp_config_rwlock, RW_READER); | |
579 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds); | |
580 | rw_exit(&dp->dp_config_rwlock); | |
581 | spa_close(spa, FTAG); | |
582 | if (error) | |
583 | return (error); | |
584 | ||
585 | dsl_dataset_name(ds, zc->zc_name); | |
586 | ||
587 | error = zfs_secpolicy_write_perms_ds(zc->zc_name, ds, | |
588 | ZFS_DELEG_PERM_SEND, cr); | |
589 | dsl_dataset_rele(ds, FTAG); | |
590 | ||
591 | return (error); | |
34dc7c2f BB |
592 | } |
593 | ||
9ee7fac5 | 594 | #ifdef HAVE_SHARE |
9babb374 BB |
595 | static int |
596 | zfs_secpolicy_deleg_share(zfs_cmd_t *zc, cred_t *cr) | |
597 | { | |
598 | vnode_t *vp; | |
599 | int error; | |
600 | ||
601 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
602 | NO_FOLLOW, NULL, &vp)) != 0) | |
603 | return (error); | |
604 | ||
605 | /* Now make sure mntpnt and dataset are ZFS */ | |
606 | ||
607 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
608 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
609 | zc->zc_name) != 0)) { | |
610 | VN_RELE(vp); | |
611 | return (EPERM); | |
612 | } | |
613 | ||
614 | VN_RELE(vp); | |
615 | return (dsl_deleg_access(zc->zc_name, | |
616 | ZFS_DELEG_PERM_SHARE, cr)); | |
617 | } | |
9ee7fac5 | 618 | #endif /* HAVE_SHARE */ |
9babb374 | 619 | |
34dc7c2f BB |
620 | int |
621 | zfs_secpolicy_share(zfs_cmd_t *zc, cred_t *cr) | |
622 | { | |
9ee7fac5 | 623 | #ifdef HAVE_SHARE |
34dc7c2f BB |
624 | if (!INGLOBALZONE(curproc)) |
625 | return (EPERM); | |
626 | ||
627 | if (secpolicy_nfs(cr) == 0) { | |
628 | return (0); | |
629 | } else { | |
9babb374 BB |
630 | return (zfs_secpolicy_deleg_share(zc, cr)); |
631 | } | |
325f0235 BB |
632 | #else |
633 | return (ENOTSUP); | |
9ee7fac5 | 634 | #endif /* HAVE_SHARE */ |
9babb374 | 635 | } |
34dc7c2f | 636 | |
9babb374 BB |
637 | int |
638 | zfs_secpolicy_smb_acl(zfs_cmd_t *zc, cred_t *cr) | |
639 | { | |
9ee7fac5 | 640 | #ifdef HAVE_SHARE |
9babb374 BB |
641 | if (!INGLOBALZONE(curproc)) |
642 | return (EPERM); | |
34dc7c2f | 643 | |
9babb374 BB |
644 | if (secpolicy_smb(cr) == 0) { |
645 | return (0); | |
646 | } else { | |
647 | return (zfs_secpolicy_deleg_share(zc, cr)); | |
34dc7c2f | 648 | } |
325f0235 BB |
649 | #else |
650 | return (ENOTSUP); | |
9ee7fac5 | 651 | #endif /* HAVE_SHARE */ |
34dc7c2f BB |
652 | } |
653 | ||
654 | static int | |
655 | zfs_get_parent(const char *datasetname, char *parent, int parentsize) | |
656 | { | |
657 | char *cp; | |
658 | ||
659 | /* | |
660 | * Remove the @bla or /bla from the end of the name to get the parent. | |
661 | */ | |
662 | (void) strncpy(parent, datasetname, parentsize); | |
663 | cp = strrchr(parent, '@'); | |
664 | if (cp != NULL) { | |
665 | cp[0] = '\0'; | |
666 | } else { | |
667 | cp = strrchr(parent, '/'); | |
668 | if (cp == NULL) | |
669 | return (ENOENT); | |
670 | cp[0] = '\0'; | |
671 | } | |
672 | ||
673 | return (0); | |
674 | } | |
675 | ||
676 | int | |
677 | zfs_secpolicy_destroy_perms(const char *name, cred_t *cr) | |
678 | { | |
679 | int error; | |
680 | ||
681 | if ((error = zfs_secpolicy_write_perms(name, | |
682 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
683 | return (error); | |
684 | ||
685 | return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr)); | |
686 | } | |
687 | ||
688 | static int | |
689 | zfs_secpolicy_destroy(zfs_cmd_t *zc, cred_t *cr) | |
690 | { | |
691 | return (zfs_secpolicy_destroy_perms(zc->zc_name, cr)); | |
692 | } | |
693 | ||
694 | /* | |
428870ff BB |
695 | * Destroying snapshots with delegated permissions requires |
696 | * descendent mount and destroy permissions. | |
697 | * Reassemble the full filesystem@snap name so dsl_deleg_access() | |
698 | * can do the correct permission check. | |
699 | * | |
700 | * Since this routine is used when doing a recursive destroy of snapshots | |
701 | * and destroying snapshots requires descendent permissions, a successfull | |
702 | * check of the top level snapshot applies to snapshots of all descendent | |
703 | * datasets as well. | |
34dc7c2f | 704 | */ |
34dc7c2f | 705 | static int |
428870ff | 706 | zfs_secpolicy_destroy_snaps(zfs_cmd_t *zc, cred_t *cr) |
34dc7c2f | 707 | { |
428870ff BB |
708 | int error; |
709 | char *dsname; | |
710 | ||
711 | dsname = kmem_asprintf("%s@%s", zc->zc_name, zc->zc_value); | |
712 | ||
713 | error = zfs_secpolicy_destroy_perms(dsname, cr); | |
714 | ||
715 | strfree(dsname); | |
716 | return (error); | |
34dc7c2f BB |
717 | } |
718 | ||
719 | int | |
720 | zfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr) | |
721 | { | |
428870ff | 722 | char parentname[MAXNAMELEN]; |
34dc7c2f BB |
723 | int error; |
724 | ||
725 | if ((error = zfs_secpolicy_write_perms(from, | |
726 | ZFS_DELEG_PERM_RENAME, cr)) != 0) | |
727 | return (error); | |
728 | ||
729 | if ((error = zfs_secpolicy_write_perms(from, | |
730 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
731 | return (error); | |
732 | ||
733 | if ((error = zfs_get_parent(to, parentname, | |
734 | sizeof (parentname))) != 0) | |
735 | return (error); | |
736 | ||
737 | if ((error = zfs_secpolicy_write_perms(parentname, | |
738 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
739 | return (error); | |
740 | ||
741 | if ((error = zfs_secpolicy_write_perms(parentname, | |
742 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
743 | return (error); | |
744 | ||
745 | return (error); | |
746 | } | |
747 | ||
748 | static int | |
749 | zfs_secpolicy_rename(zfs_cmd_t *zc, cred_t *cr) | |
750 | { | |
751 | return (zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr)); | |
752 | } | |
753 | ||
754 | static int | |
755 | zfs_secpolicy_promote(zfs_cmd_t *zc, cred_t *cr) | |
756 | { | |
428870ff | 757 | char parentname[MAXNAMELEN]; |
34dc7c2f BB |
758 | objset_t *clone; |
759 | int error; | |
760 | ||
761 | error = zfs_secpolicy_write_perms(zc->zc_name, | |
762 | ZFS_DELEG_PERM_PROMOTE, cr); | |
763 | if (error) | |
764 | return (error); | |
765 | ||
428870ff | 766 | error = dmu_objset_hold(zc->zc_name, FTAG, &clone); |
34dc7c2f BB |
767 | |
768 | if (error == 0) { | |
769 | dsl_dataset_t *pclone = NULL; | |
770 | dsl_dir_t *dd; | |
428870ff | 771 | dd = clone->os_dsl_dataset->ds_dir; |
34dc7c2f BB |
772 | |
773 | rw_enter(&dd->dd_pool->dp_config_rwlock, RW_READER); | |
b128c09f BB |
774 | error = dsl_dataset_hold_obj(dd->dd_pool, |
775 | dd->dd_phys->dd_origin_obj, FTAG, &pclone); | |
34dc7c2f BB |
776 | rw_exit(&dd->dd_pool->dp_config_rwlock); |
777 | if (error) { | |
428870ff | 778 | dmu_objset_rele(clone, FTAG); |
34dc7c2f BB |
779 | return (error); |
780 | } | |
781 | ||
782 | error = zfs_secpolicy_write_perms(zc->zc_name, | |
783 | ZFS_DELEG_PERM_MOUNT, cr); | |
784 | ||
785 | dsl_dataset_name(pclone, parentname); | |
428870ff | 786 | dmu_objset_rele(clone, FTAG); |
b128c09f | 787 | dsl_dataset_rele(pclone, FTAG); |
34dc7c2f BB |
788 | if (error == 0) |
789 | error = zfs_secpolicy_write_perms(parentname, | |
790 | ZFS_DELEG_PERM_PROMOTE, cr); | |
791 | } | |
792 | return (error); | |
793 | } | |
794 | ||
795 | static int | |
796 | zfs_secpolicy_receive(zfs_cmd_t *zc, cred_t *cr) | |
797 | { | |
798 | int error; | |
799 | ||
800 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
801 | ZFS_DELEG_PERM_RECEIVE, cr)) != 0) | |
802 | return (error); | |
803 | ||
804 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
805 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
806 | return (error); | |
807 | ||
808 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
809 | ZFS_DELEG_PERM_CREATE, cr)); | |
810 | } | |
811 | ||
812 | int | |
813 | zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr) | |
814 | { | |
428870ff BB |
815 | return (zfs_secpolicy_write_perms(name, |
816 | ZFS_DELEG_PERM_SNAPSHOT, cr)); | |
34dc7c2f BB |
817 | } |
818 | ||
819 | static int | |
820 | zfs_secpolicy_snapshot(zfs_cmd_t *zc, cred_t *cr) | |
821 | { | |
822 | ||
823 | return (zfs_secpolicy_snapshot_perms(zc->zc_name, cr)); | |
824 | } | |
825 | ||
826 | static int | |
827 | zfs_secpolicy_create(zfs_cmd_t *zc, cred_t *cr) | |
828 | { | |
428870ff BB |
829 | char parentname[MAXNAMELEN]; |
830 | int error; | |
34dc7c2f BB |
831 | |
832 | if ((error = zfs_get_parent(zc->zc_name, parentname, | |
833 | sizeof (parentname))) != 0) | |
834 | return (error); | |
835 | ||
836 | if (zc->zc_value[0] != '\0') { | |
837 | if ((error = zfs_secpolicy_write_perms(zc->zc_value, | |
838 | ZFS_DELEG_PERM_CLONE, cr)) != 0) | |
839 | return (error); | |
840 | } | |
841 | ||
842 | if ((error = zfs_secpolicy_write_perms(parentname, | |
843 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
844 | return (error); | |
845 | ||
846 | error = zfs_secpolicy_write_perms(parentname, | |
847 | ZFS_DELEG_PERM_MOUNT, cr); | |
848 | ||
849 | return (error); | |
850 | } | |
851 | ||
34dc7c2f BB |
852 | /* |
853 | * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires | |
854 | * SYS_CONFIG privilege, which is not available in a local zone. | |
855 | */ | |
856 | /* ARGSUSED */ | |
857 | static int | |
858 | zfs_secpolicy_config(zfs_cmd_t *zc, cred_t *cr) | |
859 | { | |
860 | if (secpolicy_sys_config(cr, B_FALSE) != 0) | |
861 | return (EPERM); | |
862 | ||
863 | return (0); | |
864 | } | |
865 | ||
572e2857 BB |
866 | /* |
867 | * Policy for object to name lookups. | |
868 | */ | |
869 | /* ARGSUSED */ | |
870 | static int | |
871 | zfs_secpolicy_diff(zfs_cmd_t *zc, cred_t *cr) | |
872 | { | |
873 | int error; | |
874 | ||
875 | if ((error = secpolicy_sys_config(cr, B_FALSE)) == 0) | |
876 | return (0); | |
877 | ||
878 | error = zfs_secpolicy_write_perms(zc->zc_name, ZFS_DELEG_PERM_DIFF, cr); | |
879 | return (error); | |
880 | } | |
881 | ||
34dc7c2f BB |
882 | /* |
883 | * Policy for fault injection. Requires all privileges. | |
884 | */ | |
885 | /* ARGSUSED */ | |
886 | static int | |
887 | zfs_secpolicy_inject(zfs_cmd_t *zc, cred_t *cr) | |
888 | { | |
889 | return (secpolicy_zinject(cr)); | |
890 | } | |
891 | ||
892 | static int | |
893 | zfs_secpolicy_inherit(zfs_cmd_t *zc, cred_t *cr) | |
894 | { | |
895 | zfs_prop_t prop = zfs_name_to_prop(zc->zc_value); | |
896 | ||
897 | if (prop == ZPROP_INVAL) { | |
898 | if (!zfs_prop_user(zc->zc_value)) | |
899 | return (EINVAL); | |
900 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
901 | ZFS_DELEG_PERM_USERPROP, cr)); | |
902 | } else { | |
428870ff BB |
903 | return (zfs_secpolicy_setprop(zc->zc_name, prop, |
904 | NULL, cr)); | |
34dc7c2f BB |
905 | } |
906 | } | |
907 | ||
9babb374 BB |
908 | static int |
909 | zfs_secpolicy_userspace_one(zfs_cmd_t *zc, cred_t *cr) | |
910 | { | |
911 | int err = zfs_secpolicy_read(zc, cr); | |
912 | if (err) | |
913 | return (err); | |
914 | ||
915 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
916 | return (EINVAL); | |
917 | ||
918 | if (zc->zc_value[0] == 0) { | |
919 | /* | |
920 | * They are asking about a posix uid/gid. If it's | |
921 | * themself, allow it. | |
922 | */ | |
923 | if (zc->zc_objset_type == ZFS_PROP_USERUSED || | |
924 | zc->zc_objset_type == ZFS_PROP_USERQUOTA) { | |
925 | if (zc->zc_guid == crgetuid(cr)) | |
926 | return (0); | |
927 | } else { | |
928 | if (groupmember(zc->zc_guid, cr)) | |
929 | return (0); | |
930 | } | |
931 | } | |
932 | ||
933 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
934 | userquota_perms[zc->zc_objset_type], cr)); | |
935 | } | |
936 | ||
937 | static int | |
938 | zfs_secpolicy_userspace_many(zfs_cmd_t *zc, cred_t *cr) | |
939 | { | |
940 | int err = zfs_secpolicy_read(zc, cr); | |
941 | if (err) | |
942 | return (err); | |
943 | ||
944 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
945 | return (EINVAL); | |
946 | ||
947 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
948 | userquota_perms[zc->zc_objset_type], cr)); | |
949 | } | |
950 | ||
951 | static int | |
952 | zfs_secpolicy_userspace_upgrade(zfs_cmd_t *zc, cred_t *cr) | |
953 | { | |
428870ff BB |
954 | return (zfs_secpolicy_setprop(zc->zc_name, ZFS_PROP_VERSION, |
955 | NULL, cr)); | |
9babb374 BB |
956 | } |
957 | ||
45d1cae3 BB |
958 | static int |
959 | zfs_secpolicy_hold(zfs_cmd_t *zc, cred_t *cr) | |
960 | { | |
961 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
962 | ZFS_DELEG_PERM_HOLD, cr)); | |
963 | } | |
964 | ||
965 | static int | |
966 | zfs_secpolicy_release(zfs_cmd_t *zc, cred_t *cr) | |
967 | { | |
968 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
969 | ZFS_DELEG_PERM_RELEASE, cr)); | |
970 | } | |
971 | ||
572e2857 BB |
972 | /* |
973 | * Policy for allowing temporary snapshots to be taken or released | |
974 | */ | |
975 | static int | |
976 | zfs_secpolicy_tmp_snapshot(zfs_cmd_t *zc, cred_t *cr) | |
977 | { | |
978 | /* | |
979 | * A temporary snapshot is the same as a snapshot, | |
980 | * hold, destroy and release all rolled into one. | |
981 | * Delegated diff alone is sufficient that we allow this. | |
982 | */ | |
983 | int error; | |
984 | ||
985 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
986 | ZFS_DELEG_PERM_DIFF, cr)) == 0) | |
987 | return (0); | |
988 | ||
989 | error = zfs_secpolicy_snapshot(zc, cr); | |
990 | if (!error) | |
991 | error = zfs_secpolicy_hold(zc, cr); | |
992 | if (!error) | |
993 | error = zfs_secpolicy_release(zc, cr); | |
994 | if (!error) | |
995 | error = zfs_secpolicy_destroy(zc, cr); | |
996 | return (error); | |
997 | } | |
998 | ||
34dc7c2f BB |
999 | /* |
1000 | * Returns the nvlist as specified by the user in the zfs_cmd_t. | |
1001 | */ | |
1002 | static int | |
9babb374 | 1003 | get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp) |
34dc7c2f BB |
1004 | { |
1005 | char *packed; | |
1006 | int error; | |
1007 | nvlist_t *list = NULL; | |
1008 | ||
1009 | /* | |
1010 | * Read in and unpack the user-supplied nvlist. | |
1011 | */ | |
1012 | if (size == 0) | |
1013 | return (EINVAL); | |
1014 | ||
00b46022 | 1015 | packed = kmem_alloc(size, KM_SLEEP | KM_NODEBUG); |
34dc7c2f | 1016 | |
9babb374 BB |
1017 | if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size, |
1018 | iflag)) != 0) { | |
34dc7c2f BB |
1019 | kmem_free(packed, size); |
1020 | return (error); | |
1021 | } | |
1022 | ||
1023 | if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) { | |
1024 | kmem_free(packed, size); | |
1025 | return (error); | |
1026 | } | |
1027 | ||
1028 | kmem_free(packed, size); | |
1029 | ||
1030 | *nvp = list; | |
1031 | return (0); | |
1032 | } | |
1033 | ||
428870ff BB |
1034 | static int |
1035 | fit_error_list(zfs_cmd_t *zc, nvlist_t **errors) | |
1036 | { | |
1037 | size_t size; | |
1038 | ||
1039 | VERIFY(nvlist_size(*errors, &size, NV_ENCODE_NATIVE) == 0); | |
1040 | ||
1041 | if (size > zc->zc_nvlist_dst_size) { | |
1042 | nvpair_t *more_errors; | |
1043 | int n = 0; | |
1044 | ||
1045 | if (zc->zc_nvlist_dst_size < 1024) | |
1046 | return (ENOMEM); | |
1047 | ||
1048 | VERIFY(nvlist_add_int32(*errors, ZPROP_N_MORE_ERRORS, 0) == 0); | |
1049 | more_errors = nvlist_prev_nvpair(*errors, NULL); | |
1050 | ||
1051 | do { | |
1052 | nvpair_t *pair = nvlist_prev_nvpair(*errors, | |
1053 | more_errors); | |
1054 | VERIFY(nvlist_remove_nvpair(*errors, pair) == 0); | |
1055 | n++; | |
1056 | VERIFY(nvlist_size(*errors, &size, | |
1057 | NV_ENCODE_NATIVE) == 0); | |
1058 | } while (size > zc->zc_nvlist_dst_size); | |
1059 | ||
1060 | VERIFY(nvlist_remove_nvpair(*errors, more_errors) == 0); | |
1061 | VERIFY(nvlist_add_int32(*errors, ZPROP_N_MORE_ERRORS, n) == 0); | |
1062 | ASSERT(nvlist_size(*errors, &size, NV_ENCODE_NATIVE) == 0); | |
1063 | ASSERT(size <= zc->zc_nvlist_dst_size); | |
1064 | } | |
1065 | ||
1066 | return (0); | |
1067 | } | |
1068 | ||
34dc7c2f BB |
1069 | static int |
1070 | put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl) | |
1071 | { | |
1072 | char *packed = NULL; | |
428870ff | 1073 | int error = 0; |
34dc7c2f | 1074 | size_t size; |
34dc7c2f BB |
1075 | |
1076 | VERIFY(nvlist_size(nvl, &size, NV_ENCODE_NATIVE) == 0); | |
1077 | ||
1078 | if (size > zc->zc_nvlist_dst_size) { | |
1079 | error = ENOMEM; | |
1080 | } else { | |
00b46022 | 1081 | packed = kmem_alloc(size, KM_SLEEP | KM_NODEBUG); |
34dc7c2f BB |
1082 | VERIFY(nvlist_pack(nvl, &packed, &size, NV_ENCODE_NATIVE, |
1083 | KM_SLEEP) == 0); | |
428870ff BB |
1084 | if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst, |
1085 | size, zc->zc_iflags) != 0) | |
1086 | error = EFAULT; | |
34dc7c2f BB |
1087 | kmem_free(packed, size); |
1088 | } | |
1089 | ||
1090 | zc->zc_nvlist_dst_size = size; | |
1091 | return (error); | |
1092 | } | |
1093 | ||
9babb374 | 1094 | static int |
3558fd73 | 1095 | get_zfs_sb(const char *dsname, zfs_sb_t **zsbp) |
9babb374 BB |
1096 | { |
1097 | objset_t *os; | |
1098 | int error; | |
1099 | ||
428870ff | 1100 | error = dmu_objset_hold(dsname, FTAG, &os); |
9babb374 BB |
1101 | if (error) |
1102 | return (error); | |
428870ff BB |
1103 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
1104 | dmu_objset_rele(os, FTAG); | |
1105 | return (EINVAL); | |
1106 | } | |
9babb374 | 1107 | |
428870ff | 1108 | mutex_enter(&os->os_user_ptr_lock); |
3558fd73 BB |
1109 | *zsbp = dmu_objset_get_user(os); |
1110 | if (*zsbp) { | |
1111 | mntget((*zsbp)->z_vfs); | |
9babb374 BB |
1112 | } else { |
1113 | error = ESRCH; | |
1114 | } | |
428870ff BB |
1115 | mutex_exit(&os->os_user_ptr_lock); |
1116 | dmu_objset_rele(os, FTAG); | |
9babb374 BB |
1117 | return (error); |
1118 | } | |
1119 | ||
1120 | /* | |
3558fd73 | 1121 | * Find a zfs_sb_t for a mounted filesystem, or create our own, in which |
9babb374 BB |
1122 | * case its z_vfs will be NULL, and it will be opened as the owner. |
1123 | */ | |
1124 | static int | |
3558fd73 | 1125 | zfs_sb_hold(const char *name, void *tag, zfs_sb_t **zsbp, boolean_t writer) |
9babb374 BB |
1126 | { |
1127 | int error = 0; | |
9babb374 | 1128 | |
3558fd73 BB |
1129 | if (get_zfs_sb(name, zsbp) != 0) |
1130 | error = zfs_sb_create(name, zsbp); | |
9babb374 | 1131 | if (error == 0) { |
3558fd73 | 1132 | rrw_enter(&(*zsbp)->z_teardown_lock, (writer) ? RW_WRITER : |
572e2857 | 1133 | RW_READER, tag); |
3558fd73 | 1134 | if ((*zsbp)->z_unmounted) { |
9babb374 BB |
1135 | /* |
1136 | * XXX we could probably try again, since the unmounting | |
1137 | * thread should be just about to disassociate the | |
1138 | * objset from the zfsvfs. | |
1139 | */ | |
3558fd73 | 1140 | rrw_exit(&(*zsbp)->z_teardown_lock, tag); |
9babb374 BB |
1141 | return (EBUSY); |
1142 | } | |
1143 | } | |
1144 | return (error); | |
1145 | } | |
1146 | ||
1147 | static void | |
3558fd73 | 1148 | zfs_sb_rele(zfs_sb_t *zsb, void *tag) |
9babb374 | 1149 | { |
3558fd73 | 1150 | rrw_exit(&zsb->z_teardown_lock, tag); |
9babb374 | 1151 | |
3558fd73 BB |
1152 | if (zsb->z_vfs) { |
1153 | mntput(zsb->z_vfs); | |
9babb374 | 1154 | } else { |
3558fd73 BB |
1155 | dmu_objset_disown(zsb->z_os, zsb); |
1156 | zfs_sb_free(zsb); | |
9babb374 BB |
1157 | } |
1158 | } | |
1159 | ||
34dc7c2f BB |
1160 | static int |
1161 | zfs_ioc_pool_create(zfs_cmd_t *zc) | |
1162 | { | |
1163 | int error; | |
1164 | nvlist_t *config, *props = NULL; | |
b128c09f BB |
1165 | nvlist_t *rootprops = NULL; |
1166 | nvlist_t *zplprops = NULL; | |
34dc7c2f BB |
1167 | char *buf; |
1168 | ||
c65aa5b2 BB |
1169 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, |
1170 | zc->zc_iflags, &config))) | |
34dc7c2f BB |
1171 | return (error); |
1172 | ||
1173 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1174 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1175 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1176 | nvlist_free(config); |
1177 | return (error); | |
1178 | } | |
1179 | ||
b128c09f BB |
1180 | if (props) { |
1181 | nvlist_t *nvl = NULL; | |
1182 | uint64_t version = SPA_VERSION; | |
1183 | ||
1184 | (void) nvlist_lookup_uint64(props, | |
1185 | zpool_prop_to_name(ZPOOL_PROP_VERSION), &version); | |
1186 | if (version < SPA_VERSION_INITIAL || version > SPA_VERSION) { | |
1187 | error = EINVAL; | |
1188 | goto pool_props_bad; | |
1189 | } | |
1190 | (void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl); | |
1191 | if (nvl) { | |
1192 | error = nvlist_dup(nvl, &rootprops, KM_SLEEP); | |
1193 | if (error != 0) { | |
1194 | nvlist_free(config); | |
1195 | nvlist_free(props); | |
1196 | return (error); | |
1197 | } | |
1198 | (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS); | |
1199 | } | |
1200 | VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
1201 | error = zfs_fill_zplprops_root(version, rootprops, | |
1202 | zplprops, NULL); | |
1203 | if (error) | |
1204 | goto pool_props_bad; | |
1205 | } | |
1206 | ||
34dc7c2f BB |
1207 | buf = history_str_get(zc); |
1208 | ||
b128c09f BB |
1209 | error = spa_create(zc->zc_name, config, props, buf, zplprops); |
1210 | ||
1211 | /* | |
1212 | * Set the remaining root properties | |
1213 | */ | |
428870ff BB |
1214 | if (!error && (error = zfs_set_prop_nvlist(zc->zc_name, |
1215 | ZPROP_SRC_LOCAL, rootprops, NULL)) != 0) | |
b128c09f | 1216 | (void) spa_destroy(zc->zc_name); |
34dc7c2f BB |
1217 | |
1218 | if (buf != NULL) | |
1219 | history_str_free(buf); | |
1220 | ||
b128c09f BB |
1221 | pool_props_bad: |
1222 | nvlist_free(rootprops); | |
1223 | nvlist_free(zplprops); | |
34dc7c2f | 1224 | nvlist_free(config); |
b128c09f | 1225 | nvlist_free(props); |
34dc7c2f BB |
1226 | |
1227 | return (error); | |
1228 | } | |
1229 | ||
1230 | static int | |
1231 | zfs_ioc_pool_destroy(zfs_cmd_t *zc) | |
1232 | { | |
1233 | int error; | |
1234 | zfs_log_history(zc); | |
1235 | error = spa_destroy(zc->zc_name); | |
428870ff BB |
1236 | if (error == 0) |
1237 | zvol_remove_minors(zc->zc_name); | |
34dc7c2f BB |
1238 | return (error); |
1239 | } | |
1240 | ||
1241 | static int | |
1242 | zfs_ioc_pool_import(zfs_cmd_t *zc) | |
1243 | { | |
34dc7c2f BB |
1244 | nvlist_t *config, *props = NULL; |
1245 | uint64_t guid; | |
428870ff | 1246 | int error; |
34dc7c2f BB |
1247 | |
1248 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1249 | zc->zc_iflags, &config)) != 0) |
34dc7c2f BB |
1250 | return (error); |
1251 | ||
1252 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1253 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1254 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1255 | nvlist_free(config); |
1256 | return (error); | |
1257 | } | |
1258 | ||
1259 | if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 || | |
1260 | guid != zc->zc_guid) | |
1261 | error = EINVAL; | |
1262 | else | |
572e2857 | 1263 | error = spa_import(zc->zc_name, config, props, zc->zc_cookie); |
34dc7c2f | 1264 | |
572e2857 BB |
1265 | if (zc->zc_nvlist_dst != 0) { |
1266 | int err; | |
1267 | ||
1268 | if ((err = put_nvlist(zc, config)) != 0) | |
1269 | error = err; | |
1270 | } | |
428870ff | 1271 | |
60101509 BB |
1272 | if (error == 0) |
1273 | zvol_create_minors(zc->zc_name); | |
1274 | ||
34dc7c2f BB |
1275 | nvlist_free(config); |
1276 | ||
1277 | if (props) | |
1278 | nvlist_free(props); | |
1279 | ||
1280 | return (error); | |
1281 | } | |
1282 | ||
1283 | static int | |
1284 | zfs_ioc_pool_export(zfs_cmd_t *zc) | |
1285 | { | |
1286 | int error; | |
b128c09f | 1287 | boolean_t force = (boolean_t)zc->zc_cookie; |
fb5f0bc8 | 1288 | boolean_t hardforce = (boolean_t)zc->zc_guid; |
b128c09f | 1289 | |
34dc7c2f | 1290 | zfs_log_history(zc); |
fb5f0bc8 | 1291 | error = spa_export(zc->zc_name, NULL, force, hardforce); |
428870ff BB |
1292 | if (error == 0) |
1293 | zvol_remove_minors(zc->zc_name); | |
34dc7c2f BB |
1294 | return (error); |
1295 | } | |
1296 | ||
1297 | static int | |
1298 | zfs_ioc_pool_configs(zfs_cmd_t *zc) | |
1299 | { | |
1300 | nvlist_t *configs; | |
1301 | int error; | |
1302 | ||
1303 | if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL) | |
1304 | return (EEXIST); | |
1305 | ||
1306 | error = put_nvlist(zc, configs); | |
1307 | ||
1308 | nvlist_free(configs); | |
1309 | ||
1310 | return (error); | |
1311 | } | |
1312 | ||
1313 | static int | |
1314 | zfs_ioc_pool_stats(zfs_cmd_t *zc) | |
1315 | { | |
1316 | nvlist_t *config; | |
1317 | int error; | |
1318 | int ret = 0; | |
1319 | ||
1320 | error = spa_get_stats(zc->zc_name, &config, zc->zc_value, | |
1321 | sizeof (zc->zc_value)); | |
1322 | ||
1323 | if (config != NULL) { | |
1324 | ret = put_nvlist(zc, config); | |
1325 | nvlist_free(config); | |
1326 | ||
1327 | /* | |
1328 | * The config may be present even if 'error' is non-zero. | |
1329 | * In this case we return success, and preserve the real errno | |
1330 | * in 'zc_cookie'. | |
1331 | */ | |
1332 | zc->zc_cookie = error; | |
1333 | } else { | |
1334 | ret = error; | |
1335 | } | |
1336 | ||
1337 | return (ret); | |
1338 | } | |
1339 | ||
1340 | /* | |
1341 | * Try to import the given pool, returning pool stats as appropriate so that | |
1342 | * user land knows which devices are available and overall pool health. | |
1343 | */ | |
1344 | static int | |
1345 | zfs_ioc_pool_tryimport(zfs_cmd_t *zc) | |
1346 | { | |
1347 | nvlist_t *tryconfig, *config; | |
1348 | int error; | |
1349 | ||
1350 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1351 | zc->zc_iflags, &tryconfig)) != 0) |
34dc7c2f BB |
1352 | return (error); |
1353 | ||
1354 | config = spa_tryimport(tryconfig); | |
1355 | ||
1356 | nvlist_free(tryconfig); | |
1357 | ||
1358 | if (config == NULL) | |
1359 | return (EINVAL); | |
1360 | ||
1361 | error = put_nvlist(zc, config); | |
1362 | nvlist_free(config); | |
1363 | ||
1364 | return (error); | |
1365 | } | |
1366 | ||
428870ff BB |
1367 | /* |
1368 | * inputs: | |
1369 | * zc_name name of the pool | |
1370 | * zc_cookie scan func (pool_scan_func_t) | |
1371 | */ | |
34dc7c2f | 1372 | static int |
428870ff | 1373 | zfs_ioc_pool_scan(zfs_cmd_t *zc) |
34dc7c2f BB |
1374 | { |
1375 | spa_t *spa; | |
1376 | int error; | |
1377 | ||
1378 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1379 | return (error); | |
1380 | ||
428870ff BB |
1381 | if (zc->zc_cookie == POOL_SCAN_NONE) |
1382 | error = spa_scan_stop(spa); | |
1383 | else | |
1384 | error = spa_scan(spa, zc->zc_cookie); | |
34dc7c2f BB |
1385 | |
1386 | spa_close(spa, FTAG); | |
1387 | ||
1388 | return (error); | |
1389 | } | |
1390 | ||
1391 | static int | |
1392 | zfs_ioc_pool_freeze(zfs_cmd_t *zc) | |
1393 | { | |
1394 | spa_t *spa; | |
1395 | int error; | |
1396 | ||
1397 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1398 | if (error == 0) { | |
1399 | spa_freeze(spa); | |
1400 | spa_close(spa, FTAG); | |
1401 | } | |
1402 | return (error); | |
1403 | } | |
1404 | ||
1405 | static int | |
1406 | zfs_ioc_pool_upgrade(zfs_cmd_t *zc) | |
1407 | { | |
1408 | spa_t *spa; | |
1409 | int error; | |
1410 | ||
1411 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1412 | return (error); | |
1413 | ||
1414 | if (zc->zc_cookie < spa_version(spa) || zc->zc_cookie > SPA_VERSION) { | |
1415 | spa_close(spa, FTAG); | |
1416 | return (EINVAL); | |
1417 | } | |
1418 | ||
1419 | spa_upgrade(spa, zc->zc_cookie); | |
1420 | spa_close(spa, FTAG); | |
1421 | ||
1422 | return (error); | |
1423 | } | |
1424 | ||
1425 | static int | |
1426 | zfs_ioc_pool_get_history(zfs_cmd_t *zc) | |
1427 | { | |
1428 | spa_t *spa; | |
1429 | char *hist_buf; | |
1430 | uint64_t size; | |
1431 | int error; | |
1432 | ||
1433 | if ((size = zc->zc_history_len) == 0) | |
1434 | return (EINVAL); | |
1435 | ||
1436 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1437 | return (error); | |
1438 | ||
1439 | if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { | |
1440 | spa_close(spa, FTAG); | |
1441 | return (ENOTSUP); | |
1442 | } | |
1443 | ||
34b84cb8 | 1444 | hist_buf = vmem_alloc(size, KM_SLEEP); |
34dc7c2f BB |
1445 | if ((error = spa_history_get(spa, &zc->zc_history_offset, |
1446 | &zc->zc_history_len, hist_buf)) == 0) { | |
9babb374 BB |
1447 | error = ddi_copyout(hist_buf, |
1448 | (void *)(uintptr_t)zc->zc_history, | |
1449 | zc->zc_history_len, zc->zc_iflags); | |
34dc7c2f BB |
1450 | } |
1451 | ||
1452 | spa_close(spa, FTAG); | |
34b84cb8 | 1453 | vmem_free(hist_buf, size); |
34dc7c2f BB |
1454 | return (error); |
1455 | } | |
1456 | ||
1457 | static int | |
1458 | zfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc) | |
1459 | { | |
1460 | int error; | |
1461 | ||
c65aa5b2 | 1462 | if ((error = dsl_dsobj_to_dsname(zc->zc_name,zc->zc_obj,zc->zc_value))) |
34dc7c2f BB |
1463 | return (error); |
1464 | ||
1465 | return (0); | |
1466 | } | |
1467 | ||
428870ff BB |
1468 | /* |
1469 | * inputs: | |
1470 | * zc_name name of filesystem | |
1471 | * zc_obj object to find | |
1472 | * | |
1473 | * outputs: | |
1474 | * zc_value name of object | |
1475 | */ | |
34dc7c2f BB |
1476 | static int |
1477 | zfs_ioc_obj_to_path(zfs_cmd_t *zc) | |
1478 | { | |
428870ff | 1479 | objset_t *os; |
34dc7c2f BB |
1480 | int error; |
1481 | ||
428870ff BB |
1482 | /* XXX reading from objset not owned */ |
1483 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) | |
34dc7c2f | 1484 | return (error); |
428870ff BB |
1485 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
1486 | dmu_objset_rele(os, FTAG); | |
1487 | return (EINVAL); | |
1488 | } | |
1489 | error = zfs_obj_to_path(os, zc->zc_obj, zc->zc_value, | |
34dc7c2f | 1490 | sizeof (zc->zc_value)); |
428870ff | 1491 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
1492 | |
1493 | return (error); | |
1494 | } | |
1495 | ||
572e2857 BB |
1496 | /* |
1497 | * inputs: | |
1498 | * zc_name name of filesystem | |
1499 | * zc_obj object to find | |
1500 | * | |
1501 | * outputs: | |
1502 | * zc_stat stats on object | |
1503 | * zc_value path to object | |
1504 | */ | |
1505 | static int | |
1506 | zfs_ioc_obj_to_stats(zfs_cmd_t *zc) | |
1507 | { | |
1508 | objset_t *os; | |
1509 | int error; | |
1510 | ||
1511 | /* XXX reading from objset not owned */ | |
1512 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) | |
1513 | return (error); | |
1514 | if (dmu_objset_type(os) != DMU_OST_ZFS) { | |
1515 | dmu_objset_rele(os, FTAG); | |
1516 | return (EINVAL); | |
1517 | } | |
1518 | error = zfs_obj_to_stats(os, zc->zc_obj, &zc->zc_stat, zc->zc_value, | |
1519 | sizeof (zc->zc_value)); | |
1520 | dmu_objset_rele(os, FTAG); | |
1521 | ||
1522 | return (error); | |
1523 | } | |
1524 | ||
34dc7c2f BB |
1525 | static int |
1526 | zfs_ioc_vdev_add(zfs_cmd_t *zc) | |
1527 | { | |
1528 | spa_t *spa; | |
1529 | int error; | |
1530 | nvlist_t *config, **l2cache, **spares; | |
1531 | uint_t nl2cache = 0, nspares = 0; | |
1532 | ||
1533 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1534 | if (error != 0) | |
1535 | return (error); | |
1536 | ||
1537 | error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1538 | zc->zc_iflags, &config); |
34dc7c2f BB |
1539 | (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_L2CACHE, |
1540 | &l2cache, &nl2cache); | |
1541 | ||
1542 | (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_SPARES, | |
1543 | &spares, &nspares); | |
1544 | ||
1545 | /* | |
1546 | * A root pool with concatenated devices is not supported. | |
1547 | * Thus, can not add a device to a root pool. | |
1548 | * | |
1549 | * Intent log device can not be added to a rootpool because | |
1550 | * during mountroot, zil is replayed, a seperated log device | |
1551 | * can not be accessed during the mountroot time. | |
1552 | * | |
1553 | * l2cache and spare devices are ok to be added to a rootpool. | |
1554 | */ | |
428870ff BB |
1555 | if (spa_bootfs(spa) != 0 && nl2cache == 0 && nspares == 0) { |
1556 | nvlist_free(config); | |
34dc7c2f BB |
1557 | spa_close(spa, FTAG); |
1558 | return (EDOM); | |
1559 | } | |
1560 | ||
1561 | if (error == 0) { | |
1562 | error = spa_vdev_add(spa, config); | |
1563 | nvlist_free(config); | |
1564 | } | |
1565 | spa_close(spa, FTAG); | |
1566 | return (error); | |
1567 | } | |
1568 | ||
428870ff BB |
1569 | /* |
1570 | * inputs: | |
1571 | * zc_name name of the pool | |
1572 | * zc_nvlist_conf nvlist of devices to remove | |
1573 | * zc_cookie to stop the remove? | |
1574 | */ | |
34dc7c2f BB |
1575 | static int |
1576 | zfs_ioc_vdev_remove(zfs_cmd_t *zc) | |
1577 | { | |
1578 | spa_t *spa; | |
1579 | int error; | |
1580 | ||
1581 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1582 | if (error != 0) | |
1583 | return (error); | |
1584 | error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE); | |
1585 | spa_close(spa, FTAG); | |
1586 | return (error); | |
1587 | } | |
1588 | ||
1589 | static int | |
1590 | zfs_ioc_vdev_set_state(zfs_cmd_t *zc) | |
1591 | { | |
1592 | spa_t *spa; | |
1593 | int error; | |
1594 | vdev_state_t newstate = VDEV_STATE_UNKNOWN; | |
1595 | ||
1596 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1597 | return (error); | |
1598 | switch (zc->zc_cookie) { | |
1599 | case VDEV_STATE_ONLINE: | |
1600 | error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate); | |
1601 | break; | |
1602 | ||
1603 | case VDEV_STATE_OFFLINE: | |
1604 | error = vdev_offline(spa, zc->zc_guid, zc->zc_obj); | |
1605 | break; | |
1606 | ||
1607 | case VDEV_STATE_FAULTED: | |
428870ff BB |
1608 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
1609 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
1610 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
1611 | ||
1612 | error = vdev_fault(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1613 | break; |
1614 | ||
1615 | case VDEV_STATE_DEGRADED: | |
428870ff BB |
1616 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
1617 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
1618 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
1619 | ||
1620 | error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1621 | break; |
1622 | ||
1623 | default: | |
1624 | error = EINVAL; | |
1625 | } | |
1626 | zc->zc_cookie = newstate; | |
1627 | spa_close(spa, FTAG); | |
1628 | return (error); | |
1629 | } | |
1630 | ||
1631 | static int | |
1632 | zfs_ioc_vdev_attach(zfs_cmd_t *zc) | |
1633 | { | |
1634 | spa_t *spa; | |
1635 | int replacing = zc->zc_cookie; | |
1636 | nvlist_t *config; | |
1637 | int error; | |
1638 | ||
1639 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1640 | return (error); | |
1641 | ||
1642 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1643 | zc->zc_iflags, &config)) == 0) { |
34dc7c2f BB |
1644 | error = spa_vdev_attach(spa, zc->zc_guid, config, replacing); |
1645 | nvlist_free(config); | |
1646 | } | |
1647 | ||
1648 | spa_close(spa, FTAG); | |
1649 | return (error); | |
1650 | } | |
1651 | ||
1652 | static int | |
1653 | zfs_ioc_vdev_detach(zfs_cmd_t *zc) | |
1654 | { | |
1655 | spa_t *spa; | |
1656 | int error; | |
1657 | ||
1658 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1659 | return (error); | |
1660 | ||
fb5f0bc8 | 1661 | error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE); |
34dc7c2f BB |
1662 | |
1663 | spa_close(spa, FTAG); | |
1664 | return (error); | |
1665 | } | |
1666 | ||
428870ff BB |
1667 | static int |
1668 | zfs_ioc_vdev_split(zfs_cmd_t *zc) | |
1669 | { | |
1670 | spa_t *spa; | |
1671 | nvlist_t *config, *props = NULL; | |
1672 | int error; | |
1673 | boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT); | |
1674 | ||
1675 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1676 | return (error); | |
1677 | ||
c65aa5b2 BB |
1678 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, |
1679 | zc->zc_iflags, &config))) { | |
428870ff BB |
1680 | spa_close(spa, FTAG); |
1681 | return (error); | |
1682 | } | |
1683 | ||
1684 | if (zc->zc_nvlist_src_size != 0 && (error = | |
1685 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
1686 | zc->zc_iflags, &props))) { | |
1687 | spa_close(spa, FTAG); | |
1688 | nvlist_free(config); | |
1689 | return (error); | |
1690 | } | |
1691 | ||
1692 | error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp); | |
1693 | ||
1694 | spa_close(spa, FTAG); | |
1695 | ||
1696 | nvlist_free(config); | |
1697 | nvlist_free(props); | |
1698 | ||
1699 | return (error); | |
1700 | } | |
1701 | ||
34dc7c2f BB |
1702 | static int |
1703 | zfs_ioc_vdev_setpath(zfs_cmd_t *zc) | |
1704 | { | |
1705 | spa_t *spa; | |
1706 | char *path = zc->zc_value; | |
1707 | uint64_t guid = zc->zc_guid; | |
1708 | int error; | |
1709 | ||
1710 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1711 | if (error != 0) | |
1712 | return (error); | |
1713 | ||
1714 | error = spa_vdev_setpath(spa, guid, path); | |
1715 | spa_close(spa, FTAG); | |
1716 | return (error); | |
1717 | } | |
1718 | ||
9babb374 BB |
1719 | static int |
1720 | zfs_ioc_vdev_setfru(zfs_cmd_t *zc) | |
1721 | { | |
1722 | spa_t *spa; | |
1723 | char *fru = zc->zc_value; | |
1724 | uint64_t guid = zc->zc_guid; | |
1725 | int error; | |
1726 | ||
1727 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1728 | if (error != 0) | |
1729 | return (error); | |
1730 | ||
1731 | error = spa_vdev_setfru(spa, guid, fru); | |
1732 | spa_close(spa, FTAG); | |
1733 | return (error); | |
1734 | } | |
1735 | ||
34dc7c2f | 1736 | static int |
572e2857 | 1737 | zfs_ioc_objset_stats_impl(zfs_cmd_t *zc, objset_t *os) |
34dc7c2f | 1738 | { |
572e2857 | 1739 | int error = 0; |
34dc7c2f BB |
1740 | nvlist_t *nv; |
1741 | ||
34dc7c2f BB |
1742 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); |
1743 | ||
1744 | if (zc->zc_nvlist_dst != 0 && | |
428870ff | 1745 | (error = dsl_prop_get_all(os, &nv)) == 0) { |
34dc7c2f BB |
1746 | dmu_objset_stats(os, nv); |
1747 | /* | |
1748 | * NB: zvol_get_stats() will read the objset contents, | |
1749 | * which we aren't supposed to do with a | |
b128c09f | 1750 | * DS_MODE_USER hold, because it could be |
34dc7c2f | 1751 | * inconsistent. So this is a bit of a workaround... |
428870ff | 1752 | * XXX reading with out owning |
34dc7c2f BB |
1753 | */ |
1754 | if (!zc->zc_objset_stats.dds_inconsistent) { | |
1755 | if (dmu_objset_type(os) == DMU_OST_ZVOL) | |
8a8f5c6b | 1756 | error = zvol_get_stats(os, nv); |
34dc7c2f | 1757 | } |
8a8f5c6b BB |
1758 | if (error == 0) |
1759 | error = put_nvlist(zc, nv); | |
34dc7c2f BB |
1760 | nvlist_free(nv); |
1761 | } | |
1762 | ||
572e2857 BB |
1763 | return (error); |
1764 | } | |
1765 | ||
1766 | /* | |
1767 | * inputs: | |
1768 | * zc_name name of filesystem | |
1769 | * zc_nvlist_dst_size size of buffer for property nvlist | |
1770 | * | |
1771 | * outputs: | |
1772 | * zc_objset_stats stats | |
1773 | * zc_nvlist_dst property nvlist | |
1774 | * zc_nvlist_dst_size size of property nvlist | |
1775 | */ | |
1776 | static int | |
1777 | zfs_ioc_objset_stats(zfs_cmd_t *zc) | |
1778 | { | |
1779 | objset_t *os = NULL; | |
1780 | int error; | |
1781 | ||
c65aa5b2 | 1782 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os))) |
572e2857 BB |
1783 | return (error); |
1784 | ||
1785 | error = zfs_ioc_objset_stats_impl(zc, os); | |
1786 | ||
428870ff | 1787 | dmu_objset_rele(os, FTAG); |
572e2857 | 1788 | |
428870ff BB |
1789 | return (error); |
1790 | } | |
1791 | ||
1792 | /* | |
1793 | * inputs: | |
1794 | * zc_name name of filesystem | |
1795 | * zc_nvlist_dst_size size of buffer for property nvlist | |
1796 | * | |
1797 | * outputs: | |
1798 | * zc_nvlist_dst received property nvlist | |
1799 | * zc_nvlist_dst_size size of received property nvlist | |
1800 | * | |
1801 | * Gets received properties (distinct from local properties on or after | |
1802 | * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from | |
1803 | * local property values. | |
1804 | */ | |
1805 | static int | |
26685276 | 1806 | zfs_ioc_objset_recvd_props(zfs_cmd_t *zc) |
428870ff BB |
1807 | { |
1808 | objset_t *os = NULL; | |
1809 | int error; | |
1810 | nvlist_t *nv; | |
1811 | ||
c65aa5b2 | 1812 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os))) |
428870ff BB |
1813 | return (error); |
1814 | ||
1815 | /* | |
1816 | * Without this check, we would return local property values if the | |
1817 | * caller has not already received properties on or after | |
1818 | * SPA_VERSION_RECVD_PROPS. | |
1819 | */ | |
1820 | if (!dsl_prop_get_hasrecvd(os)) { | |
1821 | dmu_objset_rele(os, FTAG); | |
1822 | return (ENOTSUP); | |
1823 | } | |
1824 | ||
1825 | if (zc->zc_nvlist_dst != 0 && | |
1826 | (error = dsl_prop_get_received(os, &nv)) == 0) { | |
1827 | error = put_nvlist(zc, nv); | |
1828 | nvlist_free(nv); | |
1829 | } | |
1830 | ||
1831 | dmu_objset_rele(os, FTAG); | |
34dc7c2f BB |
1832 | return (error); |
1833 | } | |
1834 | ||
1835 | static int | |
1836 | nvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop) | |
1837 | { | |
1838 | uint64_t value; | |
1839 | int error; | |
1840 | ||
1841 | /* | |
1842 | * zfs_get_zplprop() will either find a value or give us | |
1843 | * the default value (if there is one). | |
1844 | */ | |
1845 | if ((error = zfs_get_zplprop(os, prop, &value)) != 0) | |
1846 | return (error); | |
1847 | VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0); | |
1848 | return (0); | |
1849 | } | |
1850 | ||
1851 | /* | |
1852 | * inputs: | |
1853 | * zc_name name of filesystem | |
1854 | * zc_nvlist_dst_size size of buffer for zpl property nvlist | |
1855 | * | |
1856 | * outputs: | |
1857 | * zc_nvlist_dst zpl property nvlist | |
1858 | * zc_nvlist_dst_size size of zpl property nvlist | |
1859 | */ | |
1860 | static int | |
1861 | zfs_ioc_objset_zplprops(zfs_cmd_t *zc) | |
1862 | { | |
1863 | objset_t *os; | |
1864 | int err; | |
1865 | ||
428870ff | 1866 | /* XXX reading without owning */ |
c65aa5b2 | 1867 | if ((err = dmu_objset_hold(zc->zc_name, FTAG, &os))) |
34dc7c2f BB |
1868 | return (err); |
1869 | ||
1870 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); | |
1871 | ||
1872 | /* | |
1873 | * NB: nvl_add_zplprop() will read the objset contents, | |
b128c09f BB |
1874 | * which we aren't supposed to do with a DS_MODE_USER |
1875 | * hold, because it could be inconsistent. | |
34dc7c2f | 1876 | */ |
b8864a23 | 1877 | if (zc->zc_nvlist_dst != 0 && |
34dc7c2f BB |
1878 | !zc->zc_objset_stats.dds_inconsistent && |
1879 | dmu_objset_type(os) == DMU_OST_ZFS) { | |
1880 | nvlist_t *nv; | |
1881 | ||
1882 | VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
1883 | if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 && | |
1884 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 && | |
1885 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 && | |
1886 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0) | |
1887 | err = put_nvlist(zc, nv); | |
1888 | nvlist_free(nv); | |
1889 | } else { | |
1890 | err = ENOENT; | |
1891 | } | |
428870ff | 1892 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
1893 | return (err); |
1894 | } | |
1895 | ||
9babb374 BB |
1896 | static boolean_t |
1897 | dataset_name_hidden(const char *name) | |
1898 | { | |
1899 | /* | |
1900 | * Skip over datasets that are not visible in this zone, | |
1901 | * internal datasets (which have a $ in their name), and | |
1902 | * temporary datasets (which have a % in their name). | |
1903 | */ | |
1904 | if (strchr(name, '$') != NULL) | |
1905 | return (B_TRUE); | |
1906 | if (strchr(name, '%') != NULL) | |
1907 | return (B_TRUE); | |
1908 | if (!INGLOBALZONE(curproc) && !zone_dataset_visible(name, NULL)) | |
1909 | return (B_TRUE); | |
1910 | return (B_FALSE); | |
1911 | } | |
1912 | ||
34dc7c2f BB |
1913 | /* |
1914 | * inputs: | |
1915 | * zc_name name of filesystem | |
1916 | * zc_cookie zap cursor | |
1917 | * zc_nvlist_dst_size size of buffer for property nvlist | |
1918 | * | |
1919 | * outputs: | |
1920 | * zc_name name of next filesystem | |
9babb374 | 1921 | * zc_cookie zap cursor |
34dc7c2f BB |
1922 | * zc_objset_stats stats |
1923 | * zc_nvlist_dst property nvlist | |
1924 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
1925 | */ |
1926 | static int | |
1927 | zfs_ioc_dataset_list_next(zfs_cmd_t *zc) | |
1928 | { | |
1929 | objset_t *os; | |
1930 | int error; | |
1931 | char *p; | |
428870ff | 1932 | size_t orig_len = strlen(zc->zc_name); |
34dc7c2f | 1933 | |
428870ff | 1934 | top: |
c65aa5b2 | 1935 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os))) { |
34dc7c2f BB |
1936 | if (error == ENOENT) |
1937 | error = ESRCH; | |
1938 | return (error); | |
1939 | } | |
1940 | ||
1941 | p = strrchr(zc->zc_name, '/'); | |
1942 | if (p == NULL || p[1] != '\0') | |
1943 | (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name)); | |
1944 | p = zc->zc_name + strlen(zc->zc_name); | |
1945 | ||
9babb374 BB |
1946 | /* |
1947 | * Pre-fetch the datasets. dmu_objset_prefetch() always returns 0 | |
1948 | * but is not declared void because its called by dmu_objset_find(). | |
1949 | */ | |
d164b209 BB |
1950 | if (zc->zc_cookie == 0) { |
1951 | uint64_t cookie = 0; | |
1952 | int len = sizeof (zc->zc_name) - (p - zc->zc_name); | |
1953 | ||
1954 | while (dmu_dir_list_next(os, len, p, NULL, &cookie) == 0) | |
9babb374 | 1955 | (void) dmu_objset_prefetch(p, NULL); |
d164b209 BB |
1956 | } |
1957 | ||
34dc7c2f BB |
1958 | do { |
1959 | error = dmu_dir_list_next(os, | |
1960 | sizeof (zc->zc_name) - (p - zc->zc_name), p, | |
1961 | NULL, &zc->zc_cookie); | |
1962 | if (error == ENOENT) | |
1963 | error = ESRCH; | |
428870ff BB |
1964 | } while (error == 0 && dataset_name_hidden(zc->zc_name) && |
1965 | !(zc->zc_iflags & FKIOCTL)); | |
1966 | dmu_objset_rele(os, FTAG); | |
34dc7c2f | 1967 | |
428870ff BB |
1968 | /* |
1969 | * If it's an internal dataset (ie. with a '$' in its name), | |
1970 | * don't try to get stats for it, otherwise we'll return ENOENT. | |
1971 | */ | |
1972 | if (error == 0 && strchr(zc->zc_name, '$') == NULL) { | |
34dc7c2f | 1973 | error = zfs_ioc_objset_stats(zc); /* fill in the stats */ |
428870ff BB |
1974 | if (error == ENOENT) { |
1975 | /* We lost a race with destroy, get the next one. */ | |
1976 | zc->zc_name[orig_len] = '\0'; | |
1977 | goto top; | |
1978 | } | |
1979 | } | |
34dc7c2f BB |
1980 | return (error); |
1981 | } | |
1982 | ||
1983 | /* | |
1984 | * inputs: | |
1985 | * zc_name name of filesystem | |
1986 | * zc_cookie zap cursor | |
1987 | * zc_nvlist_dst_size size of buffer for property nvlist | |
1988 | * | |
1989 | * outputs: | |
1990 | * zc_name name of next snapshot | |
1991 | * zc_objset_stats stats | |
1992 | * zc_nvlist_dst property nvlist | |
1993 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
1994 | */ |
1995 | static int | |
1996 | zfs_ioc_snapshot_list_next(zfs_cmd_t *zc) | |
1997 | { | |
1998 | objset_t *os; | |
1999 | int error; | |
2000 | ||
428870ff BB |
2001 | top: |
2002 | if (zc->zc_cookie == 0) | |
2003 | (void) dmu_objset_find(zc->zc_name, dmu_objset_prefetch, | |
2004 | NULL, DS_FIND_SNAPSHOTS); | |
2005 | ||
2006 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
b128c09f BB |
2007 | if (error) |
2008 | return (error == ENOENT ? ESRCH : error); | |
34dc7c2f BB |
2009 | |
2010 | /* | |
2011 | * A dataset name of maximum length cannot have any snapshots, | |
2012 | * so exit immediately. | |
2013 | */ | |
2014 | if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= MAXNAMELEN) { | |
428870ff | 2015 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
2016 | return (ESRCH); |
2017 | } | |
2018 | ||
2019 | error = dmu_snapshot_list_next(os, | |
2020 | sizeof (zc->zc_name) - strlen(zc->zc_name), | |
572e2857 BB |
2021 | zc->zc_name + strlen(zc->zc_name), &zc->zc_obj, &zc->zc_cookie, |
2022 | NULL); | |
2023 | ||
428870ff | 2024 | if (error == 0) { |
572e2857 BB |
2025 | dsl_dataset_t *ds; |
2026 | dsl_pool_t *dp = os->os_dsl_dataset->ds_dir->dd_pool; | |
2027 | ||
2028 | /* | |
2029 | * Since we probably don't have a hold on this snapshot, | |
2030 | * it's possible that the objsetid could have been destroyed | |
2031 | * and reused for a new objset. It's OK if this happens during | |
2032 | * a zfs send operation, since the new createtxg will be | |
2033 | * beyond the range we're interested in. | |
2034 | */ | |
2035 | rw_enter(&dp->dp_config_rwlock, RW_READER); | |
2036 | error = dsl_dataset_hold_obj(dp, zc->zc_obj, FTAG, &ds); | |
2037 | rw_exit(&dp->dp_config_rwlock); | |
2038 | if (error) { | |
2039 | if (error == ENOENT) { | |
2040 | /* Racing with destroy, get the next one. */ | |
2041 | *strchr(zc->zc_name, '@') = '\0'; | |
2042 | dmu_objset_rele(os, FTAG); | |
2043 | goto top; | |
2044 | } | |
2045 | } else { | |
2046 | objset_t *ossnap; | |
2047 | ||
2048 | error = dmu_objset_from_ds(ds, &ossnap); | |
2049 | if (error == 0) | |
2050 | error = zfs_ioc_objset_stats_impl(zc, ossnap); | |
2051 | dsl_dataset_rele(ds, FTAG); | |
428870ff BB |
2052 | } |
2053 | } else if (error == ENOENT) { | |
b128c09f | 2054 | error = ESRCH; |
428870ff | 2055 | } |
34dc7c2f | 2056 | |
572e2857 | 2057 | dmu_objset_rele(os, FTAG); |
34dc7c2f | 2058 | /* if we failed, undo the @ that we tacked on to zc_name */ |
b128c09f | 2059 | if (error) |
34dc7c2f | 2060 | *strchr(zc->zc_name, '@') = '\0'; |
34dc7c2f BB |
2061 | return (error); |
2062 | } | |
2063 | ||
428870ff BB |
2064 | static int |
2065 | zfs_prop_set_userquota(const char *dsname, nvpair_t *pair) | |
34dc7c2f | 2066 | { |
428870ff BB |
2067 | const char *propname = nvpair_name(pair); |
2068 | uint64_t *valary; | |
2069 | unsigned int vallen; | |
2070 | const char *domain; | |
2071 | char *dash; | |
2072 | zfs_userquota_prop_t type; | |
2073 | uint64_t rid; | |
2074 | uint64_t quota; | |
3558fd73 | 2075 | zfs_sb_t *zsb; |
428870ff BB |
2076 | int err; |
2077 | ||
2078 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2079 | nvlist_t *attrs; | |
2080 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2081 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2082 | &pair) != 0) | |
2083 | return (EINVAL); | |
2084 | } | |
34dc7c2f BB |
2085 | |
2086 | /* | |
428870ff BB |
2087 | * A correctly constructed propname is encoded as |
2088 | * userquota@<rid>-<domain>. | |
34dc7c2f | 2089 | */ |
428870ff BB |
2090 | if ((dash = strchr(propname, '-')) == NULL || |
2091 | nvpair_value_uint64_array(pair, &valary, &vallen) != 0 || | |
2092 | vallen != 3) | |
2093 | return (EINVAL); | |
34dc7c2f | 2094 | |
428870ff BB |
2095 | domain = dash + 1; |
2096 | type = valary[0]; | |
2097 | rid = valary[1]; | |
2098 | quota = valary[2]; | |
34dc7c2f | 2099 | |
3558fd73 | 2100 | err = zfs_sb_hold(dsname, FTAG, &zsb, B_FALSE); |
428870ff | 2101 | if (err == 0) { |
3558fd73 BB |
2102 | err = zfs_set_userquota(zsb, type, domain, rid, quota); |
2103 | zfs_sb_rele(zsb, FTAG); | |
428870ff | 2104 | } |
9babb374 | 2105 | |
428870ff BB |
2106 | return (err); |
2107 | } | |
34dc7c2f | 2108 | |
428870ff BB |
2109 | /* |
2110 | * If the named property is one that has a special function to set its value, | |
2111 | * return 0 on success and a positive error code on failure; otherwise if it is | |
2112 | * not one of the special properties handled by this function, return -1. | |
2113 | * | |
2114 | * XXX: It would be better for callers of the property interface if we handled | |
2115 | * these special cases in dsl_prop.c (in the dsl layer). | |
2116 | */ | |
2117 | static int | |
2118 | zfs_prop_set_special(const char *dsname, zprop_source_t source, | |
2119 | nvpair_t *pair) | |
2120 | { | |
2121 | const char *propname = nvpair_name(pair); | |
2122 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2123 | uint64_t intval; | |
2124 | int err; | |
9babb374 | 2125 | |
428870ff BB |
2126 | if (prop == ZPROP_INVAL) { |
2127 | if (zfs_prop_userquota(propname)) | |
2128 | return (zfs_prop_set_userquota(dsname, pair)); | |
2129 | return (-1); | |
2130 | } | |
34dc7c2f | 2131 | |
428870ff BB |
2132 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { |
2133 | nvlist_t *attrs; | |
2134 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2135 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2136 | &pair) == 0); | |
2137 | } | |
b128c09f | 2138 | |
428870ff BB |
2139 | if (zfs_prop_get_type(prop) == PROP_TYPE_STRING) |
2140 | return (-1); | |
34dc7c2f | 2141 | |
428870ff | 2142 | VERIFY(0 == nvpair_value_uint64(pair, &intval)); |
34dc7c2f | 2143 | |
428870ff BB |
2144 | switch (prop) { |
2145 | case ZFS_PROP_QUOTA: | |
2146 | err = dsl_dir_set_quota(dsname, source, intval); | |
2147 | break; | |
2148 | case ZFS_PROP_REFQUOTA: | |
2149 | err = dsl_dataset_set_quota(dsname, source, intval); | |
2150 | break; | |
2151 | case ZFS_PROP_RESERVATION: | |
2152 | err = dsl_dir_set_reservation(dsname, source, intval); | |
2153 | break; | |
2154 | case ZFS_PROP_REFRESERVATION: | |
2155 | err = dsl_dataset_set_reservation(dsname, source, intval); | |
2156 | break; | |
2157 | case ZFS_PROP_VOLSIZE: | |
60101509 | 2158 | err = zvol_set_volsize(dsname, intval); |
428870ff BB |
2159 | break; |
2160 | case ZFS_PROP_VERSION: | |
2161 | { | |
3558fd73 | 2162 | zfs_sb_t *zsb; |
428870ff | 2163 | |
3558fd73 | 2164 | if ((err = zfs_sb_hold(dsname, FTAG, &zsb, B_TRUE)) != 0) |
34dc7c2f | 2165 | break; |
b128c09f | 2166 | |
3558fd73 BB |
2167 | err = zfs_set_version(zsb, intval); |
2168 | zfs_sb_rele(zsb, FTAG); | |
34dc7c2f | 2169 | |
428870ff BB |
2170 | if (err == 0 && intval >= ZPL_VERSION_USERSPACE) { |
2171 | zfs_cmd_t *zc; | |
34dc7c2f | 2172 | |
428870ff BB |
2173 | zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); |
2174 | (void) strcpy(zc->zc_name, dsname); | |
2175 | (void) zfs_ioc_userspace_upgrade(zc); | |
2176 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
34dc7c2f | 2177 | } |
428870ff BB |
2178 | break; |
2179 | } | |
34dc7c2f | 2180 | |
428870ff BB |
2181 | default: |
2182 | err = -1; | |
2183 | } | |
34dc7c2f | 2184 | |
428870ff BB |
2185 | return (err); |
2186 | } | |
34dc7c2f | 2187 | |
428870ff BB |
2188 | /* |
2189 | * This function is best effort. If it fails to set any of the given properties, | |
2190 | * it continues to set as many as it can and returns the first error | |
2191 | * encountered. If the caller provides a non-NULL errlist, it also gives the | |
2192 | * complete list of names of all the properties it failed to set along with the | |
2193 | * corresponding error numbers. The caller is responsible for freeing the | |
2194 | * returned errlist. | |
2195 | * | |
2196 | * If every property is set successfully, zero is returned and the list pointed | |
2197 | * at by errlist is NULL. | |
2198 | */ | |
2199 | int | |
2200 | zfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl, | |
2201 | nvlist_t **errlist) | |
2202 | { | |
2203 | nvpair_t *pair; | |
2204 | nvpair_t *propval; | |
2205 | int rv = 0; | |
2206 | uint64_t intval; | |
2207 | char *strval; | |
2208 | nvlist_t *genericnvl; | |
2209 | nvlist_t *errors; | |
2210 | nvlist_t *retrynvl; | |
34dc7c2f | 2211 | |
428870ff BB |
2212 | VERIFY(nvlist_alloc(&genericnvl, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
2213 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2214 | VERIFY(nvlist_alloc(&retrynvl, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
34dc7c2f | 2215 | |
428870ff BB |
2216 | retry: |
2217 | pair = NULL; | |
2218 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { | |
2219 | const char *propname = nvpair_name(pair); | |
2220 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2221 | int err = 0; | |
2222 | ||
2223 | /* decode the property value */ | |
2224 | propval = pair; | |
2225 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2226 | nvlist_t *attrs; | |
2227 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2228 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2229 | &propval) != 0) | |
2230 | err = EINVAL; | |
9babb374 | 2231 | } |
34dc7c2f | 2232 | |
428870ff BB |
2233 | /* Validate value type */ |
2234 | if (err == 0 && prop == ZPROP_INVAL) { | |
2235 | if (zfs_prop_user(propname)) { | |
2236 | if (nvpair_type(propval) != DATA_TYPE_STRING) | |
2237 | err = EINVAL; | |
2238 | } else if (zfs_prop_userquota(propname)) { | |
2239 | if (nvpair_type(propval) != | |
2240 | DATA_TYPE_UINT64_ARRAY) | |
2241 | err = EINVAL; | |
2242 | } | |
2243 | } else if (err == 0) { | |
2244 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
2245 | if (zfs_prop_get_type(prop) != PROP_TYPE_STRING) | |
2246 | err = EINVAL; | |
2247 | } else if (nvpair_type(propval) == DATA_TYPE_UINT64) { | |
34dc7c2f BB |
2248 | const char *unused; |
2249 | ||
428870ff BB |
2250 | VERIFY(nvpair_value_uint64(propval, |
2251 | &intval) == 0); | |
34dc7c2f BB |
2252 | |
2253 | switch (zfs_prop_get_type(prop)) { | |
2254 | case PROP_TYPE_NUMBER: | |
2255 | break; | |
2256 | case PROP_TYPE_STRING: | |
428870ff BB |
2257 | err = EINVAL; |
2258 | break; | |
34dc7c2f BB |
2259 | case PROP_TYPE_INDEX: |
2260 | if (zfs_prop_index_to_string(prop, | |
428870ff BB |
2261 | intval, &unused) != 0) |
2262 | err = EINVAL; | |
34dc7c2f BB |
2263 | break; |
2264 | default: | |
2265 | cmn_err(CE_PANIC, | |
2266 | "unknown property type"); | |
34dc7c2f | 2267 | } |
34dc7c2f | 2268 | } else { |
428870ff | 2269 | err = EINVAL; |
34dc7c2f | 2270 | } |
34dc7c2f | 2271 | } |
428870ff BB |
2272 | |
2273 | /* Validate permissions */ | |
2274 | if (err == 0) | |
2275 | err = zfs_check_settable(dsname, pair, CRED()); | |
2276 | ||
2277 | if (err == 0) { | |
2278 | err = zfs_prop_set_special(dsname, source, pair); | |
2279 | if (err == -1) { | |
2280 | /* | |
2281 | * For better performance we build up a list of | |
2282 | * properties to set in a single transaction. | |
2283 | */ | |
2284 | err = nvlist_add_nvpair(genericnvl, pair); | |
2285 | } else if (err != 0 && nvl != retrynvl) { | |
2286 | /* | |
2287 | * This may be a spurious error caused by | |
2288 | * receiving quota and reservation out of order. | |
2289 | * Try again in a second pass. | |
2290 | */ | |
2291 | err = nvlist_add_nvpair(retrynvl, pair); | |
2292 | } | |
2293 | } | |
2294 | ||
2295 | if (err != 0) | |
2296 | VERIFY(nvlist_add_int32(errors, propname, err) == 0); | |
34dc7c2f BB |
2297 | } |
2298 | ||
428870ff BB |
2299 | if (nvl != retrynvl && !nvlist_empty(retrynvl)) { |
2300 | nvl = retrynvl; | |
2301 | goto retry; | |
2302 | } | |
2303 | ||
2304 | if (!nvlist_empty(genericnvl) && | |
2305 | dsl_props_set(dsname, source, genericnvl) != 0) { | |
2306 | /* | |
2307 | * If this fails, we still want to set as many properties as we | |
2308 | * can, so try setting them individually. | |
2309 | */ | |
2310 | pair = NULL; | |
2311 | while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) { | |
2312 | const char *propname = nvpair_name(pair); | |
2313 | int err = 0; | |
2314 | ||
2315 | propval = pair; | |
2316 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2317 | nvlist_t *attrs; | |
2318 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2319 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2320 | &propval) == 0); | |
2321 | } | |
2322 | ||
2323 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
2324 | VERIFY(nvpair_value_string(propval, | |
2325 | &strval) == 0); | |
2326 | err = dsl_prop_set(dsname, propname, source, 1, | |
2327 | strlen(strval) + 1, strval); | |
2328 | } else { | |
2329 | VERIFY(nvpair_value_uint64(propval, | |
2330 | &intval) == 0); | |
2331 | err = dsl_prop_set(dsname, propname, source, 8, | |
2332 | 1, &intval); | |
2333 | } | |
2334 | ||
2335 | if (err != 0) { | |
2336 | VERIFY(nvlist_add_int32(errors, propname, | |
2337 | err) == 0); | |
2338 | } | |
2339 | } | |
9babb374 | 2340 | } |
9babb374 | 2341 | nvlist_free(genericnvl); |
428870ff BB |
2342 | nvlist_free(retrynvl); |
2343 | ||
2344 | if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) { | |
2345 | nvlist_free(errors); | |
2346 | errors = NULL; | |
2347 | } else { | |
2348 | VERIFY(nvpair_value_int32(pair, &rv) == 0); | |
2349 | } | |
2350 | ||
2351 | if (errlist == NULL) | |
2352 | nvlist_free(errors); | |
2353 | else | |
2354 | *errlist = errors; | |
2355 | ||
2356 | return (rv); | |
9babb374 BB |
2357 | } |
2358 | ||
2359 | /* | |
2360 | * Check that all the properties are valid user properties. | |
2361 | */ | |
2362 | static int | |
2363 | zfs_check_userprops(char *fsname, nvlist_t *nvl) | |
2364 | { | |
428870ff | 2365 | nvpair_t *pair = NULL; |
9babb374 BB |
2366 | int error = 0; |
2367 | ||
428870ff BB |
2368 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { |
2369 | const char *propname = nvpair_name(pair); | |
9babb374 BB |
2370 | char *valstr; |
2371 | ||
2372 | if (!zfs_prop_user(propname) || | |
428870ff | 2373 | nvpair_type(pair) != DATA_TYPE_STRING) |
9babb374 BB |
2374 | return (EINVAL); |
2375 | ||
c65aa5b2 BB |
2376 | if ((error = zfs_secpolicy_write_perms(fsname, |
2377 | ZFS_DELEG_PERM_USERPROP, CRED()))) | |
9babb374 BB |
2378 | return (error); |
2379 | ||
2380 | if (strlen(propname) >= ZAP_MAXNAMELEN) | |
2381 | return (ENAMETOOLONG); | |
2382 | ||
428870ff | 2383 | VERIFY(nvpair_value_string(pair, &valstr) == 0); |
9babb374 BB |
2384 | if (strlen(valstr) >= ZAP_MAXVALUELEN) |
2385 | return (E2BIG); | |
2386 | } | |
34dc7c2f BB |
2387 | return (0); |
2388 | } | |
2389 | ||
428870ff BB |
2390 | static void |
2391 | props_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops) | |
2392 | { | |
2393 | nvpair_t *pair; | |
2394 | ||
2395 | VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2396 | ||
2397 | pair = NULL; | |
2398 | while ((pair = nvlist_next_nvpair(props, pair)) != NULL) { | |
2399 | if (nvlist_exists(skipped, nvpair_name(pair))) | |
2400 | continue; | |
2401 | ||
2402 | VERIFY(nvlist_add_nvpair(*newprops, pair) == 0); | |
2403 | } | |
2404 | } | |
2405 | ||
2406 | static int | |
2407 | clear_received_props(objset_t *os, const char *fs, nvlist_t *props, | |
2408 | nvlist_t *skipped) | |
2409 | { | |
2410 | int err = 0; | |
2411 | nvlist_t *cleared_props = NULL; | |
2412 | props_skip(props, skipped, &cleared_props); | |
2413 | if (!nvlist_empty(cleared_props)) { | |
2414 | /* | |
2415 | * Acts on local properties until the dataset has received | |
2416 | * properties at least once on or after SPA_VERSION_RECVD_PROPS. | |
2417 | */ | |
2418 | zprop_source_t flags = (ZPROP_SRC_NONE | | |
2419 | (dsl_prop_get_hasrecvd(os) ? ZPROP_SRC_RECEIVED : 0)); | |
2420 | err = zfs_set_prop_nvlist(fs, flags, cleared_props, NULL); | |
2421 | } | |
2422 | nvlist_free(cleared_props); | |
2423 | return (err); | |
2424 | } | |
2425 | ||
34dc7c2f BB |
2426 | /* |
2427 | * inputs: | |
2428 | * zc_name name of filesystem | |
9babb374 | 2429 | * zc_value name of property to set |
34dc7c2f | 2430 | * zc_nvlist_src{_size} nvlist of properties to apply |
428870ff | 2431 | * zc_cookie received properties flag |
34dc7c2f | 2432 | * |
428870ff BB |
2433 | * outputs: |
2434 | * zc_nvlist_dst{_size} error for each unapplied received property | |
34dc7c2f BB |
2435 | */ |
2436 | static int | |
2437 | zfs_ioc_set_prop(zfs_cmd_t *zc) | |
2438 | { | |
2439 | nvlist_t *nvl; | |
428870ff BB |
2440 | boolean_t received = zc->zc_cookie; |
2441 | zprop_source_t source = (received ? ZPROP_SRC_RECEIVED : | |
2442 | ZPROP_SRC_LOCAL); | |
2443 | nvlist_t *errors = NULL; | |
34dc7c2f BB |
2444 | int error; |
2445 | ||
2446 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2447 | zc->zc_iflags, &nvl)) != 0) |
34dc7c2f BB |
2448 | return (error); |
2449 | ||
428870ff | 2450 | if (received) { |
b128c09f BB |
2451 | nvlist_t *origprops; |
2452 | objset_t *os; | |
2453 | ||
428870ff BB |
2454 | if (dmu_objset_hold(zc->zc_name, FTAG, &os) == 0) { |
2455 | if (dsl_prop_get_received(os, &origprops) == 0) { | |
2456 | (void) clear_received_props(os, | |
2457 | zc->zc_name, origprops, nvl); | |
b128c09f BB |
2458 | nvlist_free(origprops); |
2459 | } | |
b128c09f | 2460 | |
428870ff BB |
2461 | dsl_prop_set_hasrecvd(os); |
2462 | dmu_objset_rele(os, FTAG); | |
2463 | } | |
b128c09f BB |
2464 | } |
2465 | ||
428870ff | 2466 | error = zfs_set_prop_nvlist(zc->zc_name, source, nvl, &errors); |
34dc7c2f | 2467 | |
b8864a23 | 2468 | if (zc->zc_nvlist_dst != 0 && errors != NULL) { |
428870ff BB |
2469 | (void) put_nvlist(zc, errors); |
2470 | } | |
2471 | ||
2472 | nvlist_free(errors); | |
34dc7c2f BB |
2473 | nvlist_free(nvl); |
2474 | return (error); | |
2475 | } | |
2476 | ||
2477 | /* | |
2478 | * inputs: | |
2479 | * zc_name name of filesystem | |
2480 | * zc_value name of property to inherit | |
428870ff | 2481 | * zc_cookie revert to received value if TRUE |
34dc7c2f BB |
2482 | * |
2483 | * outputs: none | |
2484 | */ | |
2485 | static int | |
2486 | zfs_ioc_inherit_prop(zfs_cmd_t *zc) | |
2487 | { | |
428870ff BB |
2488 | const char *propname = zc->zc_value; |
2489 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2490 | boolean_t received = zc->zc_cookie; | |
2491 | zprop_source_t source = (received | |
2492 | ? ZPROP_SRC_NONE /* revert to received value, if any */ | |
2493 | : ZPROP_SRC_INHERITED); /* explicitly inherit */ | |
2494 | ||
2495 | if (received) { | |
2496 | nvlist_t *dummy; | |
2497 | nvpair_t *pair; | |
2498 | zprop_type_t type; | |
2499 | int err; | |
2500 | ||
2501 | /* | |
2502 | * zfs_prop_set_special() expects properties in the form of an | |
2503 | * nvpair with type info. | |
2504 | */ | |
2505 | if (prop == ZPROP_INVAL) { | |
2506 | if (!zfs_prop_user(propname)) | |
2507 | return (EINVAL); | |
2508 | ||
2509 | type = PROP_TYPE_STRING; | |
2510 | } else if (prop == ZFS_PROP_VOLSIZE || | |
2511 | prop == ZFS_PROP_VERSION) { | |
2512 | return (EINVAL); | |
2513 | } else { | |
2514 | type = zfs_prop_get_type(prop); | |
2515 | } | |
2516 | ||
2517 | VERIFY(nvlist_alloc(&dummy, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2518 | ||
2519 | switch (type) { | |
2520 | case PROP_TYPE_STRING: | |
2521 | VERIFY(0 == nvlist_add_string(dummy, propname, "")); | |
2522 | break; | |
2523 | case PROP_TYPE_NUMBER: | |
2524 | case PROP_TYPE_INDEX: | |
2525 | VERIFY(0 == nvlist_add_uint64(dummy, propname, 0)); | |
2526 | break; | |
2527 | default: | |
2528 | nvlist_free(dummy); | |
2529 | return (EINVAL); | |
2530 | } | |
2531 | ||
2532 | pair = nvlist_next_nvpair(dummy, NULL); | |
2533 | err = zfs_prop_set_special(zc->zc_name, source, pair); | |
2534 | nvlist_free(dummy); | |
2535 | if (err != -1) | |
2536 | return (err); /* special property already handled */ | |
2537 | } else { | |
2538 | /* | |
2539 | * Only check this in the non-received case. We want to allow | |
2540 | * 'inherit -S' to revert non-inheritable properties like quota | |
2541 | * and reservation to the received or default values even though | |
2542 | * they are not considered inheritable. | |
2543 | */ | |
2544 | if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop)) | |
2545 | return (EINVAL); | |
2546 | } | |
2547 | ||
34dc7c2f | 2548 | /* the property name has been validated by zfs_secpolicy_inherit() */ |
428870ff | 2549 | return (dsl_prop_set(zc->zc_name, zc->zc_value, source, 0, 0, NULL)); |
34dc7c2f BB |
2550 | } |
2551 | ||
2552 | static int | |
2553 | zfs_ioc_pool_set_props(zfs_cmd_t *zc) | |
2554 | { | |
2555 | nvlist_t *props; | |
2556 | spa_t *spa; | |
2557 | int error; | |
428870ff | 2558 | nvpair_t *pair; |
34dc7c2f | 2559 | |
c65aa5b2 BB |
2560 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
2561 | zc->zc_iflags, &props))) | |
34dc7c2f BB |
2562 | return (error); |
2563 | ||
d164b209 BB |
2564 | /* |
2565 | * If the only property is the configfile, then just do a spa_lookup() | |
2566 | * to handle the faulted case. | |
2567 | */ | |
428870ff BB |
2568 | pair = nvlist_next_nvpair(props, NULL); |
2569 | if (pair != NULL && strcmp(nvpair_name(pair), | |
d164b209 | 2570 | zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 && |
428870ff | 2571 | nvlist_next_nvpair(props, pair) == NULL) { |
d164b209 BB |
2572 | mutex_enter(&spa_namespace_lock); |
2573 | if ((spa = spa_lookup(zc->zc_name)) != NULL) { | |
2574 | spa_configfile_set(spa, props, B_FALSE); | |
2575 | spa_config_sync(spa, B_FALSE, B_TRUE); | |
2576 | } | |
2577 | mutex_exit(&spa_namespace_lock); | |
428870ff BB |
2578 | if (spa != NULL) { |
2579 | nvlist_free(props); | |
d164b209 | 2580 | return (0); |
428870ff | 2581 | } |
d164b209 BB |
2582 | } |
2583 | ||
34dc7c2f BB |
2584 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2585 | nvlist_free(props); | |
2586 | return (error); | |
2587 | } | |
2588 | ||
2589 | error = spa_prop_set(spa, props); | |
2590 | ||
2591 | nvlist_free(props); | |
2592 | spa_close(spa, FTAG); | |
2593 | ||
2594 | return (error); | |
2595 | } | |
2596 | ||
2597 | static int | |
2598 | zfs_ioc_pool_get_props(zfs_cmd_t *zc) | |
2599 | { | |
2600 | spa_t *spa; | |
2601 | int error; | |
2602 | nvlist_t *nvp = NULL; | |
2603 | ||
d164b209 BB |
2604 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2605 | /* | |
2606 | * If the pool is faulted, there may be properties we can still | |
2607 | * get (such as altroot and cachefile), so attempt to get them | |
2608 | * anyway. | |
2609 | */ | |
2610 | mutex_enter(&spa_namespace_lock); | |
2611 | if ((spa = spa_lookup(zc->zc_name)) != NULL) | |
2612 | error = spa_prop_get(spa, &nvp); | |
2613 | mutex_exit(&spa_namespace_lock); | |
2614 | } else { | |
2615 | error = spa_prop_get(spa, &nvp); | |
2616 | spa_close(spa, FTAG); | |
2617 | } | |
34dc7c2f | 2618 | |
b8864a23 | 2619 | if (error == 0 && zc->zc_nvlist_dst != 0) |
34dc7c2f BB |
2620 | error = put_nvlist(zc, nvp); |
2621 | else | |
2622 | error = EFAULT; | |
2623 | ||
d164b209 | 2624 | nvlist_free(nvp); |
34dc7c2f BB |
2625 | return (error); |
2626 | } | |
2627 | ||
60101509 BB |
2628 | /* |
2629 | * inputs: | |
2630 | * zc_name name of volume | |
2631 | * | |
2632 | * outputs: none | |
2633 | */ | |
2634 | static int | |
2635 | zfs_ioc_create_minor(zfs_cmd_t *zc) | |
2636 | { | |
2637 | return (zvol_create_minor(zc->zc_name)); | |
2638 | } | |
2639 | ||
2640 | /* | |
2641 | * inputs: | |
2642 | * zc_name name of volume | |
2643 | * | |
2644 | * outputs: none | |
2645 | */ | |
2646 | static int | |
2647 | zfs_ioc_remove_minor(zfs_cmd_t *zc) | |
2648 | { | |
2649 | return (zvol_remove_minor(zc->zc_name)); | |
2650 | } | |
2651 | ||
34dc7c2f BB |
2652 | /* |
2653 | * inputs: | |
2654 | * zc_name name of filesystem | |
2655 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
2656 | * zc_perm_action allow/unallow flag | |
2657 | * | |
2658 | * outputs: none | |
2659 | */ | |
2660 | static int | |
2661 | zfs_ioc_set_fsacl(zfs_cmd_t *zc) | |
2662 | { | |
2663 | int error; | |
2664 | nvlist_t *fsaclnv = NULL; | |
2665 | ||
2666 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2667 | zc->zc_iflags, &fsaclnv)) != 0) |
34dc7c2f BB |
2668 | return (error); |
2669 | ||
2670 | /* | |
2671 | * Verify nvlist is constructed correctly | |
2672 | */ | |
2673 | if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) { | |
2674 | nvlist_free(fsaclnv); | |
2675 | return (EINVAL); | |
2676 | } | |
2677 | ||
2678 | /* | |
2679 | * If we don't have PRIV_SYS_MOUNT, then validate | |
2680 | * that user is allowed to hand out each permission in | |
2681 | * the nvlist(s) | |
2682 | */ | |
2683 | ||
2684 | error = secpolicy_zfs(CRED()); | |
2685 | if (error) { | |
2686 | if (zc->zc_perm_action == B_FALSE) { | |
2687 | error = dsl_deleg_can_allow(zc->zc_name, | |
2688 | fsaclnv, CRED()); | |
2689 | } else { | |
2690 | error = dsl_deleg_can_unallow(zc->zc_name, | |
2691 | fsaclnv, CRED()); | |
2692 | } | |
2693 | } | |
2694 | ||
2695 | if (error == 0) | |
2696 | error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action); | |
2697 | ||
2698 | nvlist_free(fsaclnv); | |
2699 | return (error); | |
2700 | } | |
2701 | ||
2702 | /* | |
2703 | * inputs: | |
2704 | * zc_name name of filesystem | |
2705 | * | |
2706 | * outputs: | |
2707 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
2708 | */ | |
2709 | static int | |
2710 | zfs_ioc_get_fsacl(zfs_cmd_t *zc) | |
2711 | { | |
2712 | nvlist_t *nvp; | |
2713 | int error; | |
2714 | ||
2715 | if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) { | |
2716 | error = put_nvlist(zc, nvp); | |
2717 | nvlist_free(nvp); | |
2718 | } | |
2719 | ||
2720 | return (error); | |
2721 | } | |
2722 | ||
3558fd73 | 2723 | #ifdef HAVE_SNAPSHOT |
34dc7c2f BB |
2724 | /* |
2725 | * Search the vfs list for a specified resource. Returns a pointer to it | |
2726 | * or NULL if no suitable entry is found. The caller of this routine | |
2727 | * is responsible for releasing the returned vfs pointer. | |
2728 | */ | |
2729 | static vfs_t * | |
2730 | zfs_get_vfs(const char *resource) | |
2731 | { | |
2732 | struct vfs *vfsp; | |
2733 | struct vfs *vfs_found = NULL; | |
2734 | ||
2735 | vfs_list_read_lock(); | |
2736 | vfsp = rootvfs; | |
2737 | do { | |
2738 | if (strcmp(refstr_value(vfsp->vfs_resource), resource) == 0) { | |
3558fd73 | 2739 | mntget(vfsp); |
34dc7c2f BB |
2740 | vfs_found = vfsp; |
2741 | break; | |
2742 | } | |
2743 | vfsp = vfsp->vfs_next; | |
2744 | } while (vfsp != rootvfs); | |
2745 | vfs_list_unlock(); | |
2746 | return (vfs_found); | |
2747 | } | |
3558fd73 | 2748 | #endif /* HAVE_SNAPSHOT */ |
34dc7c2f BB |
2749 | |
2750 | /* ARGSUSED */ | |
2751 | static void | |
2752 | zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx) | |
2753 | { | |
2754 | zfs_creat_t *zct = arg; | |
2755 | ||
2756 | zfs_create_fs(os, cr, zct->zct_zplprops, tx); | |
2757 | } | |
2758 | ||
2759 | #define ZFS_PROP_UNDEFINED ((uint64_t)-1) | |
2760 | ||
2761 | /* | |
2762 | * inputs: | |
b128c09f BB |
2763 | * createprops list of properties requested by creator |
2764 | * default_zplver zpl version to use if unspecified in createprops | |
2765 | * fuids_ok fuids allowed in this version of the spa? | |
2766 | * os parent objset pointer (NULL if root fs) | |
34dc7c2f BB |
2767 | * |
2768 | * outputs: | |
2769 | * zplprops values for the zplprops we attach to the master node object | |
b128c09f | 2770 | * is_ci true if requested file system will be purely case-insensitive |
34dc7c2f BB |
2771 | * |
2772 | * Determine the settings for utf8only, normalization and | |
2773 | * casesensitivity. Specific values may have been requested by the | |
2774 | * creator and/or we can inherit values from the parent dataset. If | |
2775 | * the file system is of too early a vintage, a creator can not | |
2776 | * request settings for these properties, even if the requested | |
2777 | * setting is the default value. We don't actually want to create dsl | |
2778 | * properties for these, so remove them from the source nvlist after | |
2779 | * processing. | |
2780 | */ | |
2781 | static int | |
9babb374 | 2782 | zfs_fill_zplprops_impl(objset_t *os, uint64_t zplver, |
428870ff BB |
2783 | boolean_t fuids_ok, boolean_t sa_ok, nvlist_t *createprops, |
2784 | nvlist_t *zplprops, boolean_t *is_ci) | |
34dc7c2f | 2785 | { |
34dc7c2f BB |
2786 | uint64_t sense = ZFS_PROP_UNDEFINED; |
2787 | uint64_t norm = ZFS_PROP_UNDEFINED; | |
2788 | uint64_t u8 = ZFS_PROP_UNDEFINED; | |
34dc7c2f BB |
2789 | |
2790 | ASSERT(zplprops != NULL); | |
2791 | ||
34dc7c2f BB |
2792 | /* |
2793 | * Pull out creator prop choices, if any. | |
2794 | */ | |
2795 | if (createprops) { | |
b128c09f BB |
2796 | (void) nvlist_lookup_uint64(createprops, |
2797 | zfs_prop_to_name(ZFS_PROP_VERSION), &zplver); | |
34dc7c2f BB |
2798 | (void) nvlist_lookup_uint64(createprops, |
2799 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm); | |
2800 | (void) nvlist_remove_all(createprops, | |
2801 | zfs_prop_to_name(ZFS_PROP_NORMALIZE)); | |
2802 | (void) nvlist_lookup_uint64(createprops, | |
2803 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8); | |
2804 | (void) nvlist_remove_all(createprops, | |
2805 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); | |
2806 | (void) nvlist_lookup_uint64(createprops, | |
2807 | zfs_prop_to_name(ZFS_PROP_CASE), &sense); | |
2808 | (void) nvlist_remove_all(createprops, | |
2809 | zfs_prop_to_name(ZFS_PROP_CASE)); | |
2810 | } | |
2811 | ||
2812 | /* | |
b128c09f BB |
2813 | * If the zpl version requested is whacky or the file system |
2814 | * or pool is version is too "young" to support normalization | |
2815 | * and the creator tried to set a value for one of the props, | |
2816 | * error out. | |
34dc7c2f | 2817 | */ |
b128c09f BB |
2818 | if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) || |
2819 | (zplver >= ZPL_VERSION_FUID && !fuids_ok) || | |
428870ff | 2820 | (zplver >= ZPL_VERSION_SA && !sa_ok) || |
b128c09f | 2821 | (zplver < ZPL_VERSION_NORMALIZATION && |
34dc7c2f | 2822 | (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED || |
b128c09f | 2823 | sense != ZFS_PROP_UNDEFINED))) |
34dc7c2f BB |
2824 | return (ENOTSUP); |
2825 | ||
2826 | /* | |
2827 | * Put the version in the zplprops | |
2828 | */ | |
2829 | VERIFY(nvlist_add_uint64(zplprops, | |
2830 | zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0); | |
2831 | ||
34dc7c2f BB |
2832 | if (norm == ZFS_PROP_UNDEFINED) |
2833 | VERIFY(zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm) == 0); | |
2834 | VERIFY(nvlist_add_uint64(zplprops, | |
2835 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0); | |
2836 | ||
2837 | /* | |
2838 | * If we're normalizing, names must always be valid UTF-8 strings. | |
2839 | */ | |
2840 | if (norm) | |
2841 | u8 = 1; | |
2842 | if (u8 == ZFS_PROP_UNDEFINED) | |
2843 | VERIFY(zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8) == 0); | |
2844 | VERIFY(nvlist_add_uint64(zplprops, | |
2845 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0); | |
2846 | ||
2847 | if (sense == ZFS_PROP_UNDEFINED) | |
2848 | VERIFY(zfs_get_zplprop(os, ZFS_PROP_CASE, &sense) == 0); | |
2849 | VERIFY(nvlist_add_uint64(zplprops, | |
2850 | zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0); | |
2851 | ||
2852 | if (is_ci) | |
2853 | *is_ci = (sense == ZFS_CASE_INSENSITIVE); | |
2854 | ||
34dc7c2f BB |
2855 | return (0); |
2856 | } | |
2857 | ||
b128c09f BB |
2858 | static int |
2859 | zfs_fill_zplprops(const char *dataset, nvlist_t *createprops, | |
2860 | nvlist_t *zplprops, boolean_t *is_ci) | |
2861 | { | |
428870ff | 2862 | boolean_t fuids_ok, sa_ok; |
b128c09f BB |
2863 | uint64_t zplver = ZPL_VERSION; |
2864 | objset_t *os = NULL; | |
2865 | char parentname[MAXNAMELEN]; | |
2866 | char *cp; | |
428870ff BB |
2867 | spa_t *spa; |
2868 | uint64_t spa_vers; | |
b128c09f BB |
2869 | int error; |
2870 | ||
2871 | (void) strlcpy(parentname, dataset, sizeof (parentname)); | |
2872 | cp = strrchr(parentname, '/'); | |
2873 | ASSERT(cp != NULL); | |
2874 | cp[0] = '\0'; | |
2875 | ||
428870ff BB |
2876 | if ((error = spa_open(dataset, &spa, FTAG)) != 0) |
2877 | return (error); | |
2878 | ||
2879 | spa_vers = spa_version(spa); | |
2880 | spa_close(spa, FTAG); | |
2881 | ||
2882 | zplver = zfs_zpl_version_map(spa_vers); | |
2883 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
2884 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f BB |
2885 | |
2886 | /* | |
2887 | * Open parent object set so we can inherit zplprop values. | |
2888 | */ | |
428870ff | 2889 | if ((error = dmu_objset_hold(parentname, FTAG, &os)) != 0) |
b128c09f BB |
2890 | return (error); |
2891 | ||
428870ff | 2892 | error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, sa_ok, createprops, |
b128c09f | 2893 | zplprops, is_ci); |
428870ff | 2894 | dmu_objset_rele(os, FTAG); |
b128c09f BB |
2895 | return (error); |
2896 | } | |
2897 | ||
2898 | static int | |
2899 | zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops, | |
2900 | nvlist_t *zplprops, boolean_t *is_ci) | |
2901 | { | |
428870ff BB |
2902 | boolean_t fuids_ok; |
2903 | boolean_t sa_ok; | |
b128c09f BB |
2904 | uint64_t zplver = ZPL_VERSION; |
2905 | int error; | |
2906 | ||
428870ff BB |
2907 | zplver = zfs_zpl_version_map(spa_vers); |
2908 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
2909 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f | 2910 | |
428870ff BB |
2911 | error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, sa_ok, |
2912 | createprops, zplprops, is_ci); | |
b128c09f BB |
2913 | return (error); |
2914 | } | |
2915 | ||
34dc7c2f BB |
2916 | /* |
2917 | * inputs: | |
2918 | * zc_objset_type type of objset to create (fs vs zvol) | |
2919 | * zc_name name of new objset | |
2920 | * zc_value name of snapshot to clone from (may be empty) | |
2921 | * zc_nvlist_src{_size} nvlist of properties to apply | |
2922 | * | |
2923 | * outputs: none | |
2924 | */ | |
2925 | static int | |
2926 | zfs_ioc_create(zfs_cmd_t *zc) | |
2927 | { | |
2928 | objset_t *clone; | |
2929 | int error = 0; | |
2930 | zfs_creat_t zct; | |
2931 | nvlist_t *nvprops = NULL; | |
2932 | void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx); | |
2933 | dmu_objset_type_t type = zc->zc_objset_type; | |
2934 | ||
2935 | switch (type) { | |
2936 | ||
2937 | case DMU_OST_ZFS: | |
2938 | cbfunc = zfs_create_cb; | |
2939 | break; | |
2940 | ||
2941 | case DMU_OST_ZVOL: | |
2942 | cbfunc = zvol_create_cb; | |
2943 | break; | |
2944 | ||
2945 | default: | |
2946 | cbfunc = NULL; | |
2947 | break; | |
2948 | } | |
2949 | if (strchr(zc->zc_name, '@') || | |
2950 | strchr(zc->zc_name, '%')) | |
2951 | return (EINVAL); | |
2952 | ||
b8864a23 | 2953 | if (zc->zc_nvlist_src != 0 && |
34dc7c2f | 2954 | (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
9babb374 | 2955 | zc->zc_iflags, &nvprops)) != 0) |
34dc7c2f BB |
2956 | return (error); |
2957 | ||
2958 | zct.zct_zplprops = NULL; | |
2959 | zct.zct_props = nvprops; | |
2960 | ||
2961 | if (zc->zc_value[0] != '\0') { | |
2962 | /* | |
2963 | * We're creating a clone of an existing snapshot. | |
2964 | */ | |
2965 | zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; | |
2966 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0) { | |
2967 | nvlist_free(nvprops); | |
2968 | return (EINVAL); | |
2969 | } | |
2970 | ||
428870ff | 2971 | error = dmu_objset_hold(zc->zc_value, FTAG, &clone); |
34dc7c2f BB |
2972 | if (error) { |
2973 | nvlist_free(nvprops); | |
2974 | return (error); | |
2975 | } | |
2976 | ||
428870ff BB |
2977 | error = dmu_objset_clone(zc->zc_name, dmu_objset_ds(clone), 0); |
2978 | dmu_objset_rele(clone, FTAG); | |
34dc7c2f | 2979 | if (error) { |
34dc7c2f BB |
2980 | nvlist_free(nvprops); |
2981 | return (error); | |
2982 | } | |
34dc7c2f BB |
2983 | } else { |
2984 | boolean_t is_insensitive = B_FALSE; | |
2985 | ||
2986 | if (cbfunc == NULL) { | |
2987 | nvlist_free(nvprops); | |
2988 | return (EINVAL); | |
2989 | } | |
2990 | ||
2991 | if (type == DMU_OST_ZVOL) { | |
2992 | uint64_t volsize, volblocksize; | |
2993 | ||
2994 | if (nvprops == NULL || | |
2995 | nvlist_lookup_uint64(nvprops, | |
2996 | zfs_prop_to_name(ZFS_PROP_VOLSIZE), | |
2997 | &volsize) != 0) { | |
2998 | nvlist_free(nvprops); | |
2999 | return (EINVAL); | |
3000 | } | |
3001 | ||
3002 | if ((error = nvlist_lookup_uint64(nvprops, | |
3003 | zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
3004 | &volblocksize)) != 0 && error != ENOENT) { | |
3005 | nvlist_free(nvprops); | |
3006 | return (EINVAL); | |
3007 | } | |
3008 | ||
3009 | if (error != 0) | |
3010 | volblocksize = zfs_prop_default_numeric( | |
3011 | ZFS_PROP_VOLBLOCKSIZE); | |
3012 | ||
3013 | if ((error = zvol_check_volblocksize( | |
3014 | volblocksize)) != 0 || | |
3015 | (error = zvol_check_volsize(volsize, | |
3016 | volblocksize)) != 0) { | |
3017 | nvlist_free(nvprops); | |
3018 | return (error); | |
3019 | } | |
3020 | } else if (type == DMU_OST_ZFS) { | |
34dc7c2f BB |
3021 | int error; |
3022 | ||
34dc7c2f BB |
3023 | /* |
3024 | * We have to have normalization and | |
3025 | * case-folding flags correct when we do the | |
3026 | * file system creation, so go figure them out | |
3027 | * now. | |
3028 | */ | |
3029 | VERIFY(nvlist_alloc(&zct.zct_zplprops, | |
3030 | NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3031 | error = zfs_fill_zplprops(zc->zc_name, nvprops, | |
b128c09f | 3032 | zct.zct_zplprops, &is_insensitive); |
34dc7c2f BB |
3033 | if (error != 0) { |
3034 | nvlist_free(nvprops); | |
3035 | nvlist_free(zct.zct_zplprops); | |
3036 | return (error); | |
3037 | } | |
3038 | } | |
428870ff | 3039 | error = dmu_objset_create(zc->zc_name, type, |
34dc7c2f BB |
3040 | is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct); |
3041 | nvlist_free(zct.zct_zplprops); | |
3042 | } | |
3043 | ||
3044 | /* | |
3045 | * It would be nice to do this atomically. | |
3046 | */ | |
3047 | if (error == 0) { | |
428870ff BB |
3048 | error = zfs_set_prop_nvlist(zc->zc_name, ZPROP_SRC_LOCAL, |
3049 | nvprops, NULL); | |
3050 | if (error != 0) | |
45d1cae3 | 3051 | (void) dmu_objset_destroy(zc->zc_name, B_FALSE); |
34dc7c2f BB |
3052 | } |
3053 | nvlist_free(nvprops); | |
3054 | return (error); | |
3055 | } | |
3056 | ||
3057 | /* | |
3058 | * inputs: | |
3059 | * zc_name name of filesystem | |
3060 | * zc_value short name of snapshot | |
3061 | * zc_cookie recursive flag | |
9babb374 | 3062 | * zc_nvlist_src[_size] property list |
34dc7c2f | 3063 | * |
428870ff BB |
3064 | * outputs: |
3065 | * zc_value short snapname (i.e. part after the '@') | |
34dc7c2f BB |
3066 | */ |
3067 | static int | |
3068 | zfs_ioc_snapshot(zfs_cmd_t *zc) | |
3069 | { | |
b128c09f BB |
3070 | nvlist_t *nvprops = NULL; |
3071 | int error; | |
3072 | boolean_t recursive = zc->zc_cookie; | |
3073 | ||
34dc7c2f BB |
3074 | if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0) |
3075 | return (EINVAL); | |
b128c09f | 3076 | |
b8864a23 | 3077 | if (zc->zc_nvlist_src != 0 && |
b128c09f | 3078 | (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
9babb374 | 3079 | zc->zc_iflags, &nvprops)) != 0) |
b128c09f BB |
3080 | return (error); |
3081 | ||
9babb374 BB |
3082 | error = zfs_check_userprops(zc->zc_name, nvprops); |
3083 | if (error) | |
3084 | goto out; | |
b128c09f | 3085 | |
428870ff | 3086 | if (!nvlist_empty(nvprops) && |
9babb374 BB |
3087 | zfs_earlier_version(zc->zc_name, SPA_VERSION_SNAP_PROPS)) { |
3088 | error = ENOTSUP; | |
3089 | goto out; | |
b128c09f | 3090 | } |
9babb374 | 3091 | |
572e2857 BB |
3092 | error = dmu_objset_snapshot(zc->zc_name, zc->zc_value, NULL, |
3093 | nvprops, recursive, B_FALSE, -1); | |
9babb374 BB |
3094 | |
3095 | out: | |
b128c09f BB |
3096 | nvlist_free(nvprops); |
3097 | return (error); | |
34dc7c2f BB |
3098 | } |
3099 | ||
3100 | int | |
428870ff | 3101 | zfs_unmount_snap(const char *name, void *arg) |
34dc7c2f | 3102 | { |
3558fd73 | 3103 | #ifdef HAVE_SNAPSHOT |
34dc7c2f BB |
3104 | vfs_t *vfsp = NULL; |
3105 | ||
b128c09f BB |
3106 | if (arg) { |
3107 | char *snapname = arg; | |
428870ff BB |
3108 | char *fullname = kmem_asprintf("%s@%s", name, snapname); |
3109 | vfsp = zfs_get_vfs(fullname); | |
3110 | strfree(fullname); | |
34dc7c2f BB |
3111 | } else if (strchr(name, '@')) { |
3112 | vfsp = zfs_get_vfs(name); | |
3113 | } | |
3114 | ||
3115 | if (vfsp) { | |
3116 | /* | |
3117 | * Always force the unmount for snapshots. | |
3118 | */ | |
3119 | int flag = MS_FORCE; | |
3120 | int err; | |
3121 | ||
3122 | if ((err = vn_vfswlock(vfsp->vfs_vnodecovered)) != 0) { | |
3558fd73 | 3123 | mntput(vfsp); |
34dc7c2f BB |
3124 | return (err); |
3125 | } | |
3558fd73 | 3126 | mntput(vfsp); |
34dc7c2f BB |
3127 | if ((err = dounmount(vfsp, flag, kcred)) != 0) |
3128 | return (err); | |
3129 | } | |
3558fd73 | 3130 | #endif /* HAVE_SNAPSHOT */ |
34dc7c2f BB |
3131 | return (0); |
3132 | } | |
3133 | ||
3134 | /* | |
3135 | * inputs: | |
45d1cae3 BB |
3136 | * zc_name name of filesystem |
3137 | * zc_value short name of snapshot | |
3138 | * zc_defer_destroy mark for deferred destroy | |
34dc7c2f BB |
3139 | * |
3140 | * outputs: none | |
3141 | */ | |
3142 | static int | |
3143 | zfs_ioc_destroy_snaps(zfs_cmd_t *zc) | |
3144 | { | |
3145 | int err; | |
3146 | ||
3147 | if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0) | |
3148 | return (EINVAL); | |
3149 | err = dmu_objset_find(zc->zc_name, | |
3150 | zfs_unmount_snap, zc->zc_value, DS_FIND_CHILDREN); | |
3151 | if (err) | |
3152 | return (err); | |
45d1cae3 BB |
3153 | return (dmu_snapshots_destroy(zc->zc_name, zc->zc_value, |
3154 | zc->zc_defer_destroy)); | |
34dc7c2f BB |
3155 | } |
3156 | ||
3157 | /* | |
3158 | * inputs: | |
3159 | * zc_name name of dataset to destroy | |
3160 | * zc_objset_type type of objset | |
45d1cae3 | 3161 | * zc_defer_destroy mark for deferred destroy |
34dc7c2f BB |
3162 | * |
3163 | * outputs: none | |
3164 | */ | |
3165 | static int | |
3166 | zfs_ioc_destroy(zfs_cmd_t *zc) | |
3167 | { | |
428870ff | 3168 | int err; |
34dc7c2f | 3169 | if (strchr(zc->zc_name, '@') && zc->zc_objset_type == DMU_OST_ZFS) { |
428870ff | 3170 | err = zfs_unmount_snap(zc->zc_name, NULL); |
34dc7c2f BB |
3171 | if (err) |
3172 | return (err); | |
3173 | } | |
3174 | ||
428870ff BB |
3175 | err = dmu_objset_destroy(zc->zc_name, zc->zc_defer_destroy); |
3176 | if (zc->zc_objset_type == DMU_OST_ZVOL && err == 0) | |
3177 | (void) zvol_remove_minor(zc->zc_name); | |
3178 | return (err); | |
34dc7c2f BB |
3179 | } |
3180 | ||
3181 | /* | |
3182 | * inputs: | |
3183 | * zc_name name of dataset to rollback (to most recent snapshot) | |
3184 | * | |
3185 | * outputs: none | |
3186 | */ | |
3187 | static int | |
3188 | zfs_ioc_rollback(zfs_cmd_t *zc) | |
3189 | { | |
428870ff | 3190 | dsl_dataset_t *ds, *clone; |
34dc7c2f | 3191 | int error; |
3558fd73 | 3192 | zfs_sb_t *zsb; |
428870ff BB |
3193 | char *clone_name; |
3194 | ||
3195 | error = dsl_dataset_hold(zc->zc_name, FTAG, &ds); | |
3196 | if (error) | |
3197 | return (error); | |
3198 | ||
3199 | /* must not be a snapshot */ | |
3200 | if (dsl_dataset_is_snapshot(ds)) { | |
3201 | dsl_dataset_rele(ds, FTAG); | |
3202 | return (EINVAL); | |
3203 | } | |
3204 | ||
3205 | /* must have a most recent snapshot */ | |
3206 | if (ds->ds_phys->ds_prev_snap_txg < TXG_INITIAL) { | |
3207 | dsl_dataset_rele(ds, FTAG); | |
3208 | return (EINVAL); | |
3209 | } | |
34dc7c2f BB |
3210 | |
3211 | /* | |
428870ff | 3212 | * Create clone of most recent snapshot. |
34dc7c2f | 3213 | */ |
428870ff BB |
3214 | clone_name = kmem_asprintf("%s/%%rollback", zc->zc_name); |
3215 | error = dmu_objset_clone(clone_name, ds->ds_prev, DS_FLAG_INCONSISTENT); | |
34dc7c2f | 3216 | if (error) |
428870ff | 3217 | goto out; |
34dc7c2f | 3218 | |
428870ff BB |
3219 | error = dsl_dataset_own(clone_name, B_TRUE, FTAG, &clone); |
3220 | if (error) | |
3221 | goto out; | |
34dc7c2f | 3222 | |
428870ff BB |
3223 | /* |
3224 | * Do clone swap. | |
3225 | */ | |
3558fd73 BB |
3226 | if (get_zfs_sb(zc->zc_name, &zsb) == 0) { |
3227 | error = zfs_suspend_fs(zsb); | |
34dc7c2f BB |
3228 | if (error == 0) { |
3229 | int resume_err; | |
3230 | ||
428870ff BB |
3231 | if (dsl_dataset_tryown(ds, B_FALSE, FTAG)) { |
3232 | error = dsl_dataset_clone_swap(clone, ds, | |
3233 | B_TRUE); | |
3234 | dsl_dataset_disown(ds, FTAG); | |
3235 | ds = NULL; | |
3236 | } else { | |
3237 | error = EBUSY; | |
3238 | } | |
3558fd73 | 3239 | resume_err = zfs_resume_fs(zsb, zc->zc_name); |
34dc7c2f | 3240 | error = error ? error : resume_err; |
34dc7c2f | 3241 | } |
3558fd73 | 3242 | mntput(zsb->z_vfs); |
34dc7c2f | 3243 | } else { |
428870ff BB |
3244 | if (dsl_dataset_tryown(ds, B_FALSE, FTAG)) { |
3245 | error = dsl_dataset_clone_swap(clone, ds, B_TRUE); | |
3246 | dsl_dataset_disown(ds, FTAG); | |
3247 | ds = NULL; | |
3248 | } else { | |
3249 | error = EBUSY; | |
3250 | } | |
34dc7c2f | 3251 | } |
34dc7c2f | 3252 | |
428870ff BB |
3253 | /* |
3254 | * Destroy clone (which also closes it). | |
3255 | */ | |
3256 | (void) dsl_dataset_destroy(clone, FTAG, B_FALSE); | |
3257 | ||
3258 | out: | |
3259 | strfree(clone_name); | |
3260 | if (ds) | |
3261 | dsl_dataset_rele(ds, FTAG); | |
34dc7c2f BB |
3262 | return (error); |
3263 | } | |
3264 | ||
3265 | /* | |
3266 | * inputs: | |
3267 | * zc_name old name of dataset | |
3268 | * zc_value new name of dataset | |
3269 | * zc_cookie recursive flag (only valid for snapshots) | |
3270 | * | |
3271 | * outputs: none | |
3272 | */ | |
3273 | static int | |
3274 | zfs_ioc_rename(zfs_cmd_t *zc) | |
3275 | { | |
3276 | boolean_t recursive = zc->zc_cookie & 1; | |
95c73795 | 3277 | int err; |
34dc7c2f BB |
3278 | |
3279 | zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; | |
3280 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
3281 | strchr(zc->zc_value, '%')) | |
3282 | return (EINVAL); | |
3283 | ||
3284 | /* | |
3285 | * Unmount snapshot unless we're doing a recursive rename, | |
3286 | * in which case the dataset code figures out which snapshots | |
3287 | * to unmount. | |
3288 | */ | |
3289 | if (!recursive && strchr(zc->zc_name, '@') != NULL && | |
3290 | zc->zc_objset_type == DMU_OST_ZFS) { | |
95c73795 | 3291 | err = zfs_unmount_snap(zc->zc_name, NULL); |
34dc7c2f BB |
3292 | if (err) |
3293 | return (err); | |
3294 | } | |
95c73795 BB |
3295 | |
3296 | err = dmu_objset_rename(zc->zc_name, zc->zc_value, recursive); | |
3297 | if ((err == 0) && (zc->zc_objset_type == DMU_OST_ZVOL)) { | |
428870ff | 3298 | (void) zvol_remove_minor(zc->zc_name); |
95c73795 BB |
3299 | (void) zvol_create_minor(zc->zc_value); |
3300 | } | |
3301 | ||
3302 | return (err); | |
34dc7c2f BB |
3303 | } |
3304 | ||
428870ff BB |
3305 | static int |
3306 | zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr) | |
3307 | { | |
3308 | const char *propname = nvpair_name(pair); | |
3309 | boolean_t issnap = (strchr(dsname, '@') != NULL); | |
3310 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
3311 | uint64_t intval; | |
3312 | int err; | |
3313 | ||
3314 | if (prop == ZPROP_INVAL) { | |
3315 | if (zfs_prop_user(propname)) { | |
c65aa5b2 BB |
3316 | if ((err = zfs_secpolicy_write_perms(dsname, |
3317 | ZFS_DELEG_PERM_USERPROP, cr))) | |
428870ff BB |
3318 | return (err); |
3319 | return (0); | |
3320 | } | |
3321 | ||
3322 | if (!issnap && zfs_prop_userquota(propname)) { | |
3323 | const char *perm = NULL; | |
3324 | const char *uq_prefix = | |
3325 | zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA]; | |
3326 | const char *gq_prefix = | |
3327 | zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA]; | |
3328 | ||
3329 | if (strncmp(propname, uq_prefix, | |
3330 | strlen(uq_prefix)) == 0) { | |
3331 | perm = ZFS_DELEG_PERM_USERQUOTA; | |
3332 | } else if (strncmp(propname, gq_prefix, | |
3333 | strlen(gq_prefix)) == 0) { | |
3334 | perm = ZFS_DELEG_PERM_GROUPQUOTA; | |
3335 | } else { | |
3336 | /* USERUSED and GROUPUSED are read-only */ | |
3337 | return (EINVAL); | |
3338 | } | |
3339 | ||
c65aa5b2 | 3340 | if ((err = zfs_secpolicy_write_perms(dsname, perm, cr))) |
428870ff BB |
3341 | return (err); |
3342 | return (0); | |
3343 | } | |
3344 | ||
3345 | return (EINVAL); | |
3346 | } | |
3347 | ||
3348 | if (issnap) | |
3349 | return (EINVAL); | |
3350 | ||
3351 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
3352 | /* | |
3353 | * dsl_prop_get_all_impl() returns properties in this | |
3354 | * format. | |
3355 | */ | |
3356 | nvlist_t *attrs; | |
3357 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
3358 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3359 | &pair) == 0); | |
3360 | } | |
3361 | ||
3362 | /* | |
3363 | * Check that this value is valid for this pool version | |
3364 | */ | |
3365 | switch (prop) { | |
3366 | case ZFS_PROP_COMPRESSION: | |
3367 | /* | |
3368 | * If the user specified gzip compression, make sure | |
3369 | * the SPA supports it. We ignore any errors here since | |
3370 | * we'll catch them later. | |
3371 | */ | |
3372 | if (nvpair_type(pair) == DATA_TYPE_UINT64 && | |
3373 | nvpair_value_uint64(pair, &intval) == 0) { | |
3374 | if (intval >= ZIO_COMPRESS_GZIP_1 && | |
3375 | intval <= ZIO_COMPRESS_GZIP_9 && | |
3376 | zfs_earlier_version(dsname, | |
3377 | SPA_VERSION_GZIP_COMPRESSION)) { | |
3378 | return (ENOTSUP); | |
3379 | } | |
3380 | ||
3381 | if (intval == ZIO_COMPRESS_ZLE && | |
3382 | zfs_earlier_version(dsname, | |
3383 | SPA_VERSION_ZLE_COMPRESSION)) | |
3384 | return (ENOTSUP); | |
3385 | ||
3386 | /* | |
3387 | * If this is a bootable dataset then | |
3388 | * verify that the compression algorithm | |
3389 | * is supported for booting. We must return | |
3390 | * something other than ENOTSUP since it | |
3391 | * implies a downrev pool version. | |
3392 | */ | |
3393 | if (zfs_is_bootfs(dsname) && | |
3394 | !BOOTFS_COMPRESS_VALID(intval)) { | |
3395 | return (ERANGE); | |
3396 | } | |
3397 | } | |
3398 | break; | |
3399 | ||
3400 | case ZFS_PROP_COPIES: | |
3401 | if (zfs_earlier_version(dsname, SPA_VERSION_DITTO_BLOCKS)) | |
3402 | return (ENOTSUP); | |
3403 | break; | |
3404 | ||
3405 | case ZFS_PROP_DEDUP: | |
3406 | if (zfs_earlier_version(dsname, SPA_VERSION_DEDUP)) | |
3407 | return (ENOTSUP); | |
3408 | break; | |
3409 | ||
3410 | case ZFS_PROP_SHARESMB: | |
3411 | if (zpl_earlier_version(dsname, ZPL_VERSION_FUID)) | |
3412 | return (ENOTSUP); | |
3413 | break; | |
3414 | ||
3415 | case ZFS_PROP_ACLINHERIT: | |
3416 | if (nvpair_type(pair) == DATA_TYPE_UINT64 && | |
3417 | nvpair_value_uint64(pair, &intval) == 0) { | |
3418 | if (intval == ZFS_ACL_PASSTHROUGH_X && | |
3419 | zfs_earlier_version(dsname, | |
3420 | SPA_VERSION_PASSTHROUGH_X)) | |
3421 | return (ENOTSUP); | |
3422 | } | |
3423 | break; | |
e75c13c3 BB |
3424 | default: |
3425 | break; | |
428870ff BB |
3426 | } |
3427 | ||
3428 | return (zfs_secpolicy_setprop(dsname, prop, pair, CRED())); | |
3429 | } | |
3430 | ||
3431 | /* | |
3432 | * Removes properties from the given props list that fail permission checks | |
3433 | * needed to clear them and to restore them in case of a receive error. For each | |
3434 | * property, make sure we have both set and inherit permissions. | |
3435 | * | |
3436 | * Returns the first error encountered if any permission checks fail. If the | |
3437 | * caller provides a non-NULL errlist, it also gives the complete list of names | |
3438 | * of all the properties that failed a permission check along with the | |
3439 | * corresponding error numbers. The caller is responsible for freeing the | |
3440 | * returned errlist. | |
3441 | * | |
3442 | * If every property checks out successfully, zero is returned and the list | |
3443 | * pointed at by errlist is NULL. | |
3444 | */ | |
3445 | static int | |
3446 | zfs_check_clearable(char *dataset, nvlist_t *props, nvlist_t **errlist) | |
b128c09f BB |
3447 | { |
3448 | zfs_cmd_t *zc; | |
428870ff BB |
3449 | nvpair_t *pair, *next_pair; |
3450 | nvlist_t *errors; | |
3451 | int err, rv = 0; | |
b128c09f BB |
3452 | |
3453 | if (props == NULL) | |
428870ff BB |
3454 | return (0); |
3455 | ||
3456 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3457 | ||
d247f2a3 | 3458 | zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP | KM_NODEBUG); |
b128c09f | 3459 | (void) strcpy(zc->zc_name, dataset); |
428870ff BB |
3460 | pair = nvlist_next_nvpair(props, NULL); |
3461 | while (pair != NULL) { | |
3462 | next_pair = nvlist_next_nvpair(props, pair); | |
3463 | ||
3464 | (void) strcpy(zc->zc_value, nvpair_name(pair)); | |
3465 | if ((err = zfs_check_settable(dataset, pair, CRED())) != 0 || | |
3466 | (err = zfs_secpolicy_inherit(zc, CRED())) != 0) { | |
3467 | VERIFY(nvlist_remove_nvpair(props, pair) == 0); | |
3468 | VERIFY(nvlist_add_int32(errors, | |
3469 | zc->zc_value, err) == 0); | |
3470 | } | |
3471 | pair = next_pair; | |
b128c09f BB |
3472 | } |
3473 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
428870ff BB |
3474 | |
3475 | if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) { | |
3476 | nvlist_free(errors); | |
3477 | errors = NULL; | |
3478 | } else { | |
3479 | VERIFY(nvpair_value_int32(pair, &rv) == 0); | |
3480 | } | |
3481 | ||
3482 | if (errlist == NULL) | |
3483 | nvlist_free(errors); | |
3484 | else | |
3485 | *errlist = errors; | |
3486 | ||
3487 | return (rv); | |
3488 | } | |
3489 | ||
3490 | static boolean_t | |
3491 | propval_equals(nvpair_t *p1, nvpair_t *p2) | |
3492 | { | |
3493 | if (nvpair_type(p1) == DATA_TYPE_NVLIST) { | |
3494 | /* dsl_prop_get_all_impl() format */ | |
3495 | nvlist_t *attrs; | |
3496 | VERIFY(nvpair_value_nvlist(p1, &attrs) == 0); | |
3497 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3498 | &p1) == 0); | |
3499 | } | |
3500 | ||
3501 | if (nvpair_type(p2) == DATA_TYPE_NVLIST) { | |
3502 | nvlist_t *attrs; | |
3503 | VERIFY(nvpair_value_nvlist(p2, &attrs) == 0); | |
3504 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3505 | &p2) == 0); | |
3506 | } | |
3507 | ||
3508 | if (nvpair_type(p1) != nvpair_type(p2)) | |
3509 | return (B_FALSE); | |
3510 | ||
3511 | if (nvpair_type(p1) == DATA_TYPE_STRING) { | |
3512 | char *valstr1, *valstr2; | |
3513 | ||
3514 | VERIFY(nvpair_value_string(p1, (char **)&valstr1) == 0); | |
3515 | VERIFY(nvpair_value_string(p2, (char **)&valstr2) == 0); | |
3516 | return (strcmp(valstr1, valstr2) == 0); | |
3517 | } else { | |
3518 | uint64_t intval1, intval2; | |
3519 | ||
3520 | VERIFY(nvpair_value_uint64(p1, &intval1) == 0); | |
3521 | VERIFY(nvpair_value_uint64(p2, &intval2) == 0); | |
3522 | return (intval1 == intval2); | |
3523 | } | |
b128c09f BB |
3524 | } |
3525 | ||
428870ff BB |
3526 | /* |
3527 | * Remove properties from props if they are not going to change (as determined | |
3528 | * by comparison with origprops). Remove them from origprops as well, since we | |
3529 | * do not need to clear or restore properties that won't change. | |
3530 | */ | |
3531 | static void | |
3532 | props_reduce(nvlist_t *props, nvlist_t *origprops) | |
3533 | { | |
3534 | nvpair_t *pair, *next_pair; | |
3535 | ||
3536 | if (origprops == NULL) | |
3537 | return; /* all props need to be received */ | |
3538 | ||
3539 | pair = nvlist_next_nvpair(props, NULL); | |
3540 | while (pair != NULL) { | |
3541 | const char *propname = nvpair_name(pair); | |
3542 | nvpair_t *match; | |
3543 | ||
3544 | next_pair = nvlist_next_nvpair(props, pair); | |
3545 | ||
3546 | if ((nvlist_lookup_nvpair(origprops, propname, | |
3547 | &match) != 0) || !propval_equals(pair, match)) | |
3548 | goto next; /* need to set received value */ | |
3549 | ||
3550 | /* don't clear the existing received value */ | |
3551 | (void) nvlist_remove_nvpair(origprops, match); | |
3552 | /* don't bother receiving the property */ | |
3553 | (void) nvlist_remove_nvpair(props, pair); | |
3554 | next: | |
3555 | pair = next_pair; | |
3556 | } | |
3557 | } | |
3558 | ||
3559 | #ifdef DEBUG | |
3560 | static boolean_t zfs_ioc_recv_inject_err; | |
3561 | #endif | |
3562 | ||
34dc7c2f BB |
3563 | /* |
3564 | * inputs: | |
3565 | * zc_name name of containing filesystem | |
3566 | * zc_nvlist_src{_size} nvlist of properties to apply | |
3567 | * zc_value name of snapshot to create | |
3568 | * zc_string name of clone origin (if DRR_FLAG_CLONE) | |
3569 | * zc_cookie file descriptor to recv from | |
3570 | * zc_begin_record the BEGIN record of the stream (not byteswapped) | |
3571 | * zc_guid force flag | |
572e2857 BB |
3572 | * zc_cleanup_fd cleanup-on-exit file descriptor |
3573 | * zc_action_handle handle for this guid/ds mapping (or zero on first call) | |
34dc7c2f BB |
3574 | * |
3575 | * outputs: | |
3576 | * zc_cookie number of bytes read | |
428870ff BB |
3577 | * zc_nvlist_dst{_size} error for each unapplied received property |
3578 | * zc_obj zprop_errflags_t | |
572e2857 | 3579 | * zc_action_handle handle for this guid/ds mapping |
34dc7c2f BB |
3580 | */ |
3581 | static int | |
3582 | zfs_ioc_recv(zfs_cmd_t *zc) | |
3583 | { | |
3584 | file_t *fp; | |
3585 | objset_t *os; | |
3586 | dmu_recv_cookie_t drc; | |
34dc7c2f | 3587 | boolean_t force = (boolean_t)zc->zc_guid; |
428870ff BB |
3588 | int fd; |
3589 | int error = 0; | |
3590 | int props_error = 0; | |
3591 | nvlist_t *errors; | |
34dc7c2f | 3592 | offset_t off; |
428870ff BB |
3593 | nvlist_t *props = NULL; /* sent properties */ |
3594 | nvlist_t *origprops = NULL; /* existing properties */ | |
34dc7c2f BB |
3595 | objset_t *origin = NULL; |
3596 | char *tosnap; | |
3597 | char tofs[ZFS_MAXNAMELEN]; | |
428870ff | 3598 | boolean_t first_recvd_props = B_FALSE; |
34dc7c2f BB |
3599 | |
3600 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
3601 | strchr(zc->zc_value, '@') == NULL || | |
3602 | strchr(zc->zc_value, '%')) | |
3603 | return (EINVAL); | |
3604 | ||
3605 | (void) strcpy(tofs, zc->zc_value); | |
3606 | tosnap = strchr(tofs, '@'); | |
428870ff | 3607 | *tosnap++ = '\0'; |
34dc7c2f | 3608 | |
b8864a23 | 3609 | if (zc->zc_nvlist_src != 0 && |
34dc7c2f | 3610 | (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
9babb374 | 3611 | zc->zc_iflags, &props)) != 0) |
34dc7c2f BB |
3612 | return (error); |
3613 | ||
3614 | fd = zc->zc_cookie; | |
3615 | fp = getf(fd); | |
3616 | if (fp == NULL) { | |
3617 | nvlist_free(props); | |
3618 | return (EBADF); | |
3619 | } | |
3620 | ||
428870ff BB |
3621 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
3622 | ||
3623 | if (props && dmu_objset_hold(tofs, FTAG, &os) == 0) { | |
3624 | if ((spa_version(os->os_spa) >= SPA_VERSION_RECVD_PROPS) && | |
3625 | !dsl_prop_get_hasrecvd(os)) { | |
3626 | first_recvd_props = B_TRUE; | |
3627 | } | |
3628 | ||
b128c09f | 3629 | /* |
428870ff BB |
3630 | * If new received properties are supplied, they are to |
3631 | * completely replace the existing received properties, so stash | |
3632 | * away the existing ones. | |
b128c09f | 3633 | */ |
428870ff BB |
3634 | if (dsl_prop_get_received(os, &origprops) == 0) { |
3635 | nvlist_t *errlist = NULL; | |
3636 | /* | |
3637 | * Don't bother writing a property if its value won't | |
3638 | * change (and avoid the unnecessary security checks). | |
3639 | * | |
3640 | * The first receive after SPA_VERSION_RECVD_PROPS is a | |
3641 | * special case where we blow away all local properties | |
3642 | * regardless. | |
3643 | */ | |
3644 | if (!first_recvd_props) | |
3645 | props_reduce(props, origprops); | |
3646 | if (zfs_check_clearable(tofs, origprops, | |
3647 | &errlist) != 0) | |
3648 | (void) nvlist_merge(errors, errlist, 0); | |
3649 | nvlist_free(errlist); | |
3650 | } | |
b128c09f | 3651 | |
428870ff | 3652 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
3653 | } |
3654 | ||
3655 | if (zc->zc_string[0]) { | |
428870ff | 3656 | error = dmu_objset_hold(zc->zc_string, FTAG, &origin); |
b128c09f BB |
3657 | if (error) |
3658 | goto out; | |
34dc7c2f BB |
3659 | } |
3660 | ||
428870ff BB |
3661 | error = dmu_recv_begin(tofs, tosnap, zc->zc_top_ds, |
3662 | &zc->zc_begin_record, force, origin, &drc); | |
34dc7c2f | 3663 | if (origin) |
428870ff | 3664 | dmu_objset_rele(origin, FTAG); |
b128c09f BB |
3665 | if (error) |
3666 | goto out; | |
34dc7c2f BB |
3667 | |
3668 | /* | |
428870ff BB |
3669 | * Set properties before we receive the stream so that they are applied |
3670 | * to the new data. Note that we must call dmu_recv_stream() if | |
3671 | * dmu_recv_begin() succeeds. | |
34dc7c2f BB |
3672 | */ |
3673 | if (props) { | |
428870ff BB |
3674 | nvlist_t *errlist; |
3675 | ||
3676 | if (dmu_objset_from_ds(drc.drc_logical_ds, &os) == 0) { | |
3677 | if (drc.drc_newfs) { | |
3678 | if (spa_version(os->os_spa) >= | |
3679 | SPA_VERSION_RECVD_PROPS) | |
3680 | first_recvd_props = B_TRUE; | |
3681 | } else if (origprops != NULL) { | |
3682 | if (clear_received_props(os, tofs, origprops, | |
3683 | first_recvd_props ? NULL : props) != 0) | |
3684 | zc->zc_obj |= ZPROP_ERR_NOCLEAR; | |
3685 | } else { | |
3686 | zc->zc_obj |= ZPROP_ERR_NOCLEAR; | |
3687 | } | |
3688 | dsl_prop_set_hasrecvd(os); | |
3689 | } else if (!drc.drc_newfs) { | |
3690 | zc->zc_obj |= ZPROP_ERR_NOCLEAR; | |
3691 | } | |
3692 | ||
3693 | (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED, | |
3694 | props, &errlist); | |
3695 | (void) nvlist_merge(errors, errlist, 0); | |
3696 | nvlist_free(errlist); | |
3697 | } | |
3698 | ||
3699 | if (fit_error_list(zc, &errors) != 0 || put_nvlist(zc, errors) != 0) { | |
b128c09f | 3700 | /* |
428870ff BB |
3701 | * Caller made zc->zc_nvlist_dst less than the minimum expected |
3702 | * size or supplied an invalid address. | |
b128c09f | 3703 | */ |
428870ff | 3704 | props_error = EINVAL; |
34dc7c2f BB |
3705 | } |
3706 | ||
34dc7c2f | 3707 | off = fp->f_offset; |
572e2857 BB |
3708 | error = dmu_recv_stream(&drc, fp->f_vnode, &off, zc->zc_cleanup_fd, |
3709 | &zc->zc_action_handle); | |
34dc7c2f | 3710 | |
45d1cae3 | 3711 | if (error == 0) { |
3558fd73 | 3712 | zfs_sb_t *zsb = NULL; |
b128c09f | 3713 | |
3558fd73 | 3714 | if (get_zfs_sb(tofs, &zsb) == 0) { |
45d1cae3 BB |
3715 | /* online recv */ |
3716 | int end_err; | |
b128c09f | 3717 | |
3558fd73 | 3718 | error = zfs_suspend_fs(zsb); |
45d1cae3 BB |
3719 | /* |
3720 | * If the suspend fails, then the recv_end will | |
3721 | * likely also fail, and clean up after itself. | |
3722 | */ | |
3723 | end_err = dmu_recv_end(&drc); | |
428870ff | 3724 | if (error == 0) |
3558fd73 | 3725 | error = zfs_resume_fs(zsb, tofs); |
45d1cae3 | 3726 | error = error ? error : end_err; |
3558fd73 | 3727 | mntput(zsb->z_vfs); |
b128c09f | 3728 | } else { |
45d1cae3 | 3729 | error = dmu_recv_end(&drc); |
34dc7c2f | 3730 | } |
34dc7c2f BB |
3731 | } |
3732 | ||
3733 | zc->zc_cookie = off - fp->f_offset; | |
3734 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
3735 | fp->f_offset = off; | |
3736 | ||
428870ff BB |
3737 | #ifdef DEBUG |
3738 | if (zfs_ioc_recv_inject_err) { | |
3739 | zfs_ioc_recv_inject_err = B_FALSE; | |
3740 | error = 1; | |
3741 | } | |
3742 | #endif | |
b128c09f BB |
3743 | /* |
3744 | * On error, restore the original props. | |
3745 | */ | |
3746 | if (error && props) { | |
428870ff BB |
3747 | if (dmu_objset_hold(tofs, FTAG, &os) == 0) { |
3748 | if (clear_received_props(os, tofs, props, NULL) != 0) { | |
3749 | /* | |
3750 | * We failed to clear the received properties. | |
3751 | * Since we may have left a $recvd value on the | |
3752 | * system, we can't clear the $hasrecvd flag. | |
3753 | */ | |
3754 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
3755 | } else if (first_recvd_props) { | |
3756 | dsl_prop_unset_hasrecvd(os); | |
3757 | } | |
3758 | dmu_objset_rele(os, FTAG); | |
3759 | } else if (!drc.drc_newfs) { | |
3760 | /* We failed to clear the received properties. */ | |
3761 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
3762 | } | |
3763 | ||
3764 | if (origprops == NULL && !drc.drc_newfs) { | |
3765 | /* We failed to stash the original properties. */ | |
3766 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
3767 | } | |
3768 | ||
3769 | /* | |
3770 | * dsl_props_set() will not convert RECEIVED to LOCAL on or | |
3771 | * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL | |
3772 | * explictly if we're restoring local properties cleared in the | |
3773 | * first new-style receive. | |
3774 | */ | |
3775 | if (origprops != NULL && | |
3776 | zfs_set_prop_nvlist(tofs, (first_recvd_props ? | |
3777 | ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED), | |
3778 | origprops, NULL) != 0) { | |
3779 | /* | |
3780 | * We stashed the original properties but failed to | |
3781 | * restore them. | |
3782 | */ | |
3783 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
3784 | } | |
b128c09f BB |
3785 | } |
3786 | out: | |
b128c09f BB |
3787 | nvlist_free(props); |
3788 | nvlist_free(origprops); | |
428870ff | 3789 | nvlist_free(errors); |
34dc7c2f | 3790 | releasef(fd); |
428870ff BB |
3791 | |
3792 | if (error == 0) | |
3793 | error = props_error; | |
3794 | ||
34dc7c2f BB |
3795 | return (error); |
3796 | } | |
3797 | ||
3798 | /* | |
3799 | * inputs: | |
3800 | * zc_name name of snapshot to send | |
34dc7c2f | 3801 | * zc_cookie file descriptor to send stream to |
572e2857 BB |
3802 | * zc_obj fromorigin flag (mutually exclusive with zc_fromobj) |
3803 | * zc_sendobj objsetid of snapshot to send | |
3804 | * zc_fromobj objsetid of incremental fromsnap (may be zero) | |
34dc7c2f BB |
3805 | * |
3806 | * outputs: none | |
3807 | */ | |
3808 | static int | |
3809 | zfs_ioc_send(zfs_cmd_t *zc) | |
3810 | { | |
3811 | objset_t *fromsnap = NULL; | |
3812 | objset_t *tosnap; | |
3813 | file_t *fp; | |
3814 | int error; | |
3815 | offset_t off; | |
572e2857 BB |
3816 | dsl_dataset_t *ds; |
3817 | dsl_dataset_t *dsfrom = NULL; | |
3818 | spa_t *spa; | |
3819 | dsl_pool_t *dp; | |
34dc7c2f | 3820 | |
572e2857 | 3821 | error = spa_open(zc->zc_name, &spa, FTAG); |
34dc7c2f BB |
3822 | if (error) |
3823 | return (error); | |
3824 | ||
572e2857 BB |
3825 | dp = spa_get_dsl(spa); |
3826 | rw_enter(&dp->dp_config_rwlock, RW_READER); | |
3827 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds); | |
3828 | rw_exit(&dp->dp_config_rwlock); | |
3829 | if (error) { | |
3830 | spa_close(spa, FTAG); | |
3831 | return (error); | |
3832 | } | |
3833 | ||
3834 | error = dmu_objset_from_ds(ds, &tosnap); | |
3835 | if (error) { | |
3836 | dsl_dataset_rele(ds, FTAG); | |
3837 | spa_close(spa, FTAG); | |
3838 | return (error); | |
3839 | } | |
3840 | ||
3841 | if (zc->zc_fromobj != 0) { | |
3842 | rw_enter(&dp->dp_config_rwlock, RW_READER); | |
3843 | error = dsl_dataset_hold_obj(dp, zc->zc_fromobj, FTAG, &dsfrom); | |
3844 | rw_exit(&dp->dp_config_rwlock); | |
3845 | spa_close(spa, FTAG); | |
3846 | if (error) { | |
3847 | dsl_dataset_rele(ds, FTAG); | |
3848 | return (error); | |
3849 | } | |
3850 | error = dmu_objset_from_ds(dsfrom, &fromsnap); | |
34dc7c2f | 3851 | if (error) { |
572e2857 BB |
3852 | dsl_dataset_rele(dsfrom, FTAG); |
3853 | dsl_dataset_rele(ds, FTAG); | |
34dc7c2f BB |
3854 | return (error); |
3855 | } | |
572e2857 BB |
3856 | } else { |
3857 | spa_close(spa, FTAG); | |
34dc7c2f BB |
3858 | } |
3859 | ||
3860 | fp = getf(zc->zc_cookie); | |
3861 | if (fp == NULL) { | |
572e2857 BB |
3862 | dsl_dataset_rele(ds, FTAG); |
3863 | if (dsfrom) | |
3864 | dsl_dataset_rele(dsfrom, FTAG); | |
34dc7c2f BB |
3865 | return (EBADF); |
3866 | } | |
3867 | ||
3868 | off = fp->f_offset; | |
3869 | error = dmu_sendbackup(tosnap, fromsnap, zc->zc_obj, fp->f_vnode, &off); | |
3870 | ||
3871 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
3872 | fp->f_offset = off; | |
3873 | releasef(zc->zc_cookie); | |
572e2857 BB |
3874 | if (dsfrom) |
3875 | dsl_dataset_rele(dsfrom, FTAG); | |
3876 | dsl_dataset_rele(ds, FTAG); | |
34dc7c2f BB |
3877 | return (error); |
3878 | } | |
3879 | ||
3880 | static int | |
3881 | zfs_ioc_inject_fault(zfs_cmd_t *zc) | |
3882 | { | |
3883 | int id, error; | |
3884 | ||
3885 | error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id, | |
3886 | &zc->zc_inject_record); | |
3887 | ||
3888 | if (error == 0) | |
3889 | zc->zc_guid = (uint64_t)id; | |
3890 | ||
3891 | return (error); | |
3892 | } | |
3893 | ||
3894 | static int | |
3895 | zfs_ioc_clear_fault(zfs_cmd_t *zc) | |
3896 | { | |
3897 | return (zio_clear_fault((int)zc->zc_guid)); | |
3898 | } | |
3899 | ||
3900 | static int | |
3901 | zfs_ioc_inject_list_next(zfs_cmd_t *zc) | |
3902 | { | |
3903 | int id = (int)zc->zc_guid; | |
3904 | int error; | |
3905 | ||
3906 | error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name), | |
3907 | &zc->zc_inject_record); | |
3908 | ||
3909 | zc->zc_guid = id; | |
3910 | ||
3911 | return (error); | |
3912 | } | |
3913 | ||
3914 | static int | |
3915 | zfs_ioc_error_log(zfs_cmd_t *zc) | |
3916 | { | |
3917 | spa_t *spa; | |
3918 | int error; | |
3919 | size_t count = (size_t)zc->zc_nvlist_dst_size; | |
3920 | ||
3921 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
3922 | return (error); | |
3923 | ||
3924 | error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst, | |
3925 | &count); | |
3926 | if (error == 0) | |
3927 | zc->zc_nvlist_dst_size = count; | |
3928 | else | |
3929 | zc->zc_nvlist_dst_size = spa_get_errlog_size(spa); | |
3930 | ||
3931 | spa_close(spa, FTAG); | |
3932 | ||
3933 | return (error); | |
3934 | } | |
3935 | ||
3936 | static int | |
3937 | zfs_ioc_clear(zfs_cmd_t *zc) | |
3938 | { | |
3939 | spa_t *spa; | |
3940 | vdev_t *vd; | |
34dc7c2f BB |
3941 | int error; |
3942 | ||
34dc7c2f | 3943 | /* |
b128c09f | 3944 | * On zpool clear we also fix up missing slogs |
34dc7c2f | 3945 | */ |
b128c09f BB |
3946 | mutex_enter(&spa_namespace_lock); |
3947 | spa = spa_lookup(zc->zc_name); | |
3948 | if (spa == NULL) { | |
3949 | mutex_exit(&spa_namespace_lock); | |
3950 | return (EIO); | |
3951 | } | |
428870ff | 3952 | if (spa_get_log_state(spa) == SPA_LOG_MISSING) { |
b128c09f | 3953 | /* we need to let spa_open/spa_load clear the chains */ |
428870ff | 3954 | spa_set_log_state(spa, SPA_LOG_CLEAR); |
34dc7c2f | 3955 | } |
428870ff | 3956 | spa->spa_last_open_failed = 0; |
b128c09f | 3957 | mutex_exit(&spa_namespace_lock); |
34dc7c2f | 3958 | |
428870ff BB |
3959 | if (zc->zc_cookie & ZPOOL_NO_REWIND) { |
3960 | error = spa_open(zc->zc_name, &spa, FTAG); | |
3961 | } else { | |
3962 | nvlist_t *policy; | |
3963 | nvlist_t *config = NULL; | |
3964 | ||
b8864a23 | 3965 | if (zc->zc_nvlist_src == 0) |
428870ff BB |
3966 | return (EINVAL); |
3967 | ||
3968 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
3969 | zc->zc_nvlist_src_size, zc->zc_iflags, &policy)) == 0) { | |
3970 | error = spa_open_rewind(zc->zc_name, &spa, FTAG, | |
3971 | policy, &config); | |
3972 | if (config != NULL) { | |
572e2857 BB |
3973 | int err; |
3974 | ||
3975 | if ((err = put_nvlist(zc, config)) != 0) | |
3976 | error = err; | |
428870ff BB |
3977 | nvlist_free(config); |
3978 | } | |
3979 | nvlist_free(policy); | |
3980 | } | |
3981 | } | |
3982 | ||
3983 | if (error) | |
b128c09f BB |
3984 | return (error); |
3985 | ||
428870ff | 3986 | spa_vdev_state_enter(spa, SCL_NONE); |
34dc7c2f BB |
3987 | |
3988 | if (zc->zc_guid == 0) { | |
3989 | vd = NULL; | |
b128c09f BB |
3990 | } else { |
3991 | vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE); | |
34dc7c2f | 3992 | if (vd == NULL) { |
b128c09f | 3993 | (void) spa_vdev_state_exit(spa, NULL, ENODEV); |
34dc7c2f BB |
3994 | spa_close(spa, FTAG); |
3995 | return (ENODEV); | |
3996 | } | |
3997 | } | |
3998 | ||
b128c09f BB |
3999 | vdev_clear(spa, vd); |
4000 | ||
4001 | (void) spa_vdev_state_exit(spa, NULL, 0); | |
34dc7c2f | 4002 | |
b128c09f BB |
4003 | /* |
4004 | * Resume any suspended I/Os. | |
4005 | */ | |
9babb374 BB |
4006 | if (zio_resume(spa) != 0) |
4007 | error = EIO; | |
34dc7c2f BB |
4008 | |
4009 | spa_close(spa, FTAG); | |
4010 | ||
9babb374 | 4011 | return (error); |
34dc7c2f BB |
4012 | } |
4013 | ||
4014 | /* | |
4015 | * inputs: | |
4016 | * zc_name name of filesystem | |
4017 | * zc_value name of origin snapshot | |
4018 | * | |
428870ff BB |
4019 | * outputs: |
4020 | * zc_string name of conflicting snapshot, if there is one | |
34dc7c2f BB |
4021 | */ |
4022 | static int | |
4023 | zfs_ioc_promote(zfs_cmd_t *zc) | |
4024 | { | |
4025 | char *cp; | |
4026 | ||
4027 | /* | |
4028 | * We don't need to unmount *all* the origin fs's snapshots, but | |
4029 | * it's easier. | |
4030 | */ | |
4031 | cp = strchr(zc->zc_value, '@'); | |
4032 | if (cp) | |
4033 | *cp = '\0'; | |
4034 | (void) dmu_objset_find(zc->zc_value, | |
4035 | zfs_unmount_snap, NULL, DS_FIND_SNAPSHOTS); | |
428870ff | 4036 | return (dsl_dataset_promote(zc->zc_name, zc->zc_string)); |
34dc7c2f BB |
4037 | } |
4038 | ||
9babb374 BB |
4039 | /* |
4040 | * Retrieve a single {user|group}{used|quota}@... property. | |
4041 | * | |
4042 | * inputs: | |
4043 | * zc_name name of filesystem | |
4044 | * zc_objset_type zfs_userquota_prop_t | |
4045 | * zc_value domain name (eg. "S-1-234-567-89") | |
4046 | * zc_guid RID/UID/GID | |
4047 | * | |
4048 | * outputs: | |
4049 | * zc_cookie property value | |
4050 | */ | |
4051 | static int | |
4052 | zfs_ioc_userspace_one(zfs_cmd_t *zc) | |
4053 | { | |
3558fd73 | 4054 | zfs_sb_t *zsb; |
9babb374 BB |
4055 | int error; |
4056 | ||
4057 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
4058 | return (EINVAL); | |
4059 | ||
3558fd73 | 4060 | error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE); |
9babb374 BB |
4061 | if (error) |
4062 | return (error); | |
4063 | ||
3558fd73 | 4064 | error = zfs_userspace_one(zsb, |
9babb374 | 4065 | zc->zc_objset_type, zc->zc_value, zc->zc_guid, &zc->zc_cookie); |
3558fd73 | 4066 | zfs_sb_rele(zsb, FTAG); |
9babb374 BB |
4067 | |
4068 | return (error); | |
4069 | } | |
4070 | ||
4071 | /* | |
4072 | * inputs: | |
4073 | * zc_name name of filesystem | |
4074 | * zc_cookie zap cursor | |
4075 | * zc_objset_type zfs_userquota_prop_t | |
4076 | * zc_nvlist_dst[_size] buffer to fill (not really an nvlist) | |
4077 | * | |
4078 | * outputs: | |
4079 | * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t) | |
4080 | * zc_cookie zap cursor | |
4081 | */ | |
4082 | static int | |
4083 | zfs_ioc_userspace_many(zfs_cmd_t *zc) | |
4084 | { | |
3558fd73 | 4085 | zfs_sb_t *zsb; |
428870ff | 4086 | int bufsize = zc->zc_nvlist_dst_size; |
3558fd73 BB |
4087 | int error; |
4088 | void *buf; | |
428870ff BB |
4089 | |
4090 | if (bufsize <= 0) | |
4091 | return (ENOMEM); | |
9babb374 | 4092 | |
3558fd73 | 4093 | error = zfs_sb_hold(zc->zc_name, FTAG, &zsb, B_FALSE); |
9babb374 BB |
4094 | if (error) |
4095 | return (error); | |
4096 | ||
3558fd73 | 4097 | buf = kmem_alloc(bufsize, KM_SLEEP); |
9babb374 | 4098 | |
3558fd73 | 4099 | error = zfs_userspace_many(zsb, zc->zc_objset_type, &zc->zc_cookie, |
9babb374 BB |
4100 | buf, &zc->zc_nvlist_dst_size); |
4101 | ||
4102 | if (error == 0) { | |
4103 | error = xcopyout(buf, | |
4104 | (void *)(uintptr_t)zc->zc_nvlist_dst, | |
4105 | zc->zc_nvlist_dst_size); | |
4106 | } | |
4107 | kmem_free(buf, bufsize); | |
3558fd73 | 4108 | zfs_sb_rele(zsb, FTAG); |
9babb374 BB |
4109 | |
4110 | return (error); | |
4111 | } | |
4112 | ||
4113 | /* | |
4114 | * inputs: | |
4115 | * zc_name name of filesystem | |
4116 | * | |
4117 | * outputs: | |
4118 | * none | |
4119 | */ | |
4120 | static int | |
4121 | zfs_ioc_userspace_upgrade(zfs_cmd_t *zc) | |
4122 | { | |
4123 | objset_t *os; | |
428870ff | 4124 | int error = 0; |
3558fd73 | 4125 | zfs_sb_t *zsb; |
9babb374 | 4126 | |
3558fd73 BB |
4127 | if (get_zfs_sb(zc->zc_name, &zsb) == 0) { |
4128 | if (!dmu_objset_userused_enabled(zsb->z_os)) { | |
9babb374 BB |
4129 | /* |
4130 | * If userused is not enabled, it may be because the | |
4131 | * objset needs to be closed & reopened (to grow the | |
4132 | * objset_phys_t). Suspend/resume the fs will do that. | |
4133 | */ | |
3558fd73 | 4134 | error = zfs_suspend_fs(zsb); |
428870ff | 4135 | if (error == 0) |
3558fd73 | 4136 | error = zfs_resume_fs(zsb, zc->zc_name); |
9babb374 BB |
4137 | } |
4138 | if (error == 0) | |
3558fd73 BB |
4139 | error = dmu_objset_userspace_upgrade(zsb->z_os); |
4140 | mntput(zsb->z_vfs); | |
9babb374 | 4141 | } else { |
428870ff BB |
4142 | /* XXX kind of reading contents without owning */ |
4143 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
9babb374 BB |
4144 | if (error) |
4145 | return (error); | |
4146 | ||
4147 | error = dmu_objset_userspace_upgrade(os); | |
428870ff | 4148 | dmu_objset_rele(os, FTAG); |
9babb374 BB |
4149 | } |
4150 | ||
4151 | return (error); | |
4152 | } | |
4153 | ||
34dc7c2f BB |
4154 | /* |
4155 | * We don't want to have a hard dependency | |
4156 | * against some special symbols in sharefs | |
4157 | * nfs, and smbsrv. Determine them if needed when | |
4158 | * the first file system is shared. | |
4159 | * Neither sharefs, nfs or smbsrv are unloadable modules. | |
4160 | */ | |
9ee7fac5 | 4161 | #ifdef HAVE_SHARE |
34dc7c2f BB |
4162 | int (*znfsexport_fs)(void *arg); |
4163 | int (*zshare_fs)(enum sharefs_sys_op, share_t *, uint32_t); | |
4164 | int (*zsmbexport_fs)(void *arg, boolean_t add_share); | |
4165 | ||
4166 | int zfs_nfsshare_inited; | |
4167 | int zfs_smbshare_inited; | |
4168 | ||
4169 | ddi_modhandle_t nfs_mod; | |
4170 | ddi_modhandle_t sharefs_mod; | |
4171 | ddi_modhandle_t smbsrv_mod; | |
4172 | kmutex_t zfs_share_lock; | |
4173 | ||
4174 | static int | |
4175 | zfs_init_sharefs() | |
4176 | { | |
4177 | int error; | |
4178 | ||
4179 | ASSERT(MUTEX_HELD(&zfs_share_lock)); | |
4180 | /* Both NFS and SMB shares also require sharetab support. */ | |
4181 | if (sharefs_mod == NULL && ((sharefs_mod = | |
4182 | ddi_modopen("fs/sharefs", | |
4183 | KRTLD_MODE_FIRST, &error)) == NULL)) { | |
4184 | return (ENOSYS); | |
4185 | } | |
4186 | if (zshare_fs == NULL && ((zshare_fs = | |
4187 | (int (*)(enum sharefs_sys_op, share_t *, uint32_t)) | |
4188 | ddi_modsym(sharefs_mod, "sharefs_impl", &error)) == NULL)) { | |
4189 | return (ENOSYS); | |
4190 | } | |
4191 | return (0); | |
4192 | } | |
9ee7fac5 | 4193 | #endif /* HAVE_SHARE */ |
34dc7c2f BB |
4194 | |
4195 | static int | |
4196 | zfs_ioc_share(zfs_cmd_t *zc) | |
4197 | { | |
9ee7fac5 | 4198 | #ifdef HAVE_SHARE |
34dc7c2f BB |
4199 | int error; |
4200 | int opcode; | |
4201 | ||
4202 | switch (zc->zc_share.z_sharetype) { | |
4203 | case ZFS_SHARE_NFS: | |
4204 | case ZFS_UNSHARE_NFS: | |
4205 | if (zfs_nfsshare_inited == 0) { | |
4206 | mutex_enter(&zfs_share_lock); | |
4207 | if (nfs_mod == NULL && ((nfs_mod = ddi_modopen("fs/nfs", | |
4208 | KRTLD_MODE_FIRST, &error)) == NULL)) { | |
4209 | mutex_exit(&zfs_share_lock); | |
4210 | return (ENOSYS); | |
4211 | } | |
4212 | if (znfsexport_fs == NULL && | |
4213 | ((znfsexport_fs = (int (*)(void *)) | |
4214 | ddi_modsym(nfs_mod, | |
4215 | "nfs_export", &error)) == NULL)) { | |
4216 | mutex_exit(&zfs_share_lock); | |
4217 | return (ENOSYS); | |
4218 | } | |
4219 | error = zfs_init_sharefs(); | |
4220 | if (error) { | |
4221 | mutex_exit(&zfs_share_lock); | |
4222 | return (ENOSYS); | |
4223 | } | |
4224 | zfs_nfsshare_inited = 1; | |
4225 | mutex_exit(&zfs_share_lock); | |
4226 | } | |
4227 | break; | |
4228 | case ZFS_SHARE_SMB: | |
4229 | case ZFS_UNSHARE_SMB: | |
4230 | if (zfs_smbshare_inited == 0) { | |
4231 | mutex_enter(&zfs_share_lock); | |
4232 | if (smbsrv_mod == NULL && ((smbsrv_mod = | |
4233 | ddi_modopen("drv/smbsrv", | |
4234 | KRTLD_MODE_FIRST, &error)) == NULL)) { | |
4235 | mutex_exit(&zfs_share_lock); | |
4236 | return (ENOSYS); | |
4237 | } | |
4238 | if (zsmbexport_fs == NULL && ((zsmbexport_fs = | |
4239 | (int (*)(void *, boolean_t))ddi_modsym(smbsrv_mod, | |
4240 | "smb_server_share", &error)) == NULL)) { | |
4241 | mutex_exit(&zfs_share_lock); | |
4242 | return (ENOSYS); | |
4243 | } | |
4244 | error = zfs_init_sharefs(); | |
4245 | if (error) { | |
4246 | mutex_exit(&zfs_share_lock); | |
4247 | return (ENOSYS); | |
4248 | } | |
4249 | zfs_smbshare_inited = 1; | |
4250 | mutex_exit(&zfs_share_lock); | |
4251 | } | |
4252 | break; | |
4253 | default: | |
4254 | return (EINVAL); | |
4255 | } | |
4256 | ||
4257 | switch (zc->zc_share.z_sharetype) { | |
4258 | case ZFS_SHARE_NFS: | |
4259 | case ZFS_UNSHARE_NFS: | |
4260 | if (error = | |
4261 | znfsexport_fs((void *) | |
4262 | (uintptr_t)zc->zc_share.z_exportdata)) | |
4263 | return (error); | |
4264 | break; | |
4265 | case ZFS_SHARE_SMB: | |
4266 | case ZFS_UNSHARE_SMB: | |
4267 | if (error = zsmbexport_fs((void *) | |
4268 | (uintptr_t)zc->zc_share.z_exportdata, | |
4269 | zc->zc_share.z_sharetype == ZFS_SHARE_SMB ? | |
9babb374 | 4270 | B_TRUE: B_FALSE)) { |
34dc7c2f BB |
4271 | return (error); |
4272 | } | |
4273 | break; | |
4274 | } | |
4275 | ||
4276 | opcode = (zc->zc_share.z_sharetype == ZFS_SHARE_NFS || | |
4277 | zc->zc_share.z_sharetype == ZFS_SHARE_SMB) ? | |
4278 | SHAREFS_ADD : SHAREFS_REMOVE; | |
4279 | ||
4280 | /* | |
4281 | * Add or remove share from sharetab | |
4282 | */ | |
4283 | error = zshare_fs(opcode, | |
4284 | (void *)(uintptr_t)zc->zc_share.z_sharedata, | |
4285 | zc->zc_share.z_sharemax); | |
4286 | ||
4287 | return (error); | |
325f0235 BB |
4288 | #else |
4289 | return (ENOTSUP); | |
9ee7fac5 | 4290 | #endif /* HAVE_SHARE */ |
34dc7c2f BB |
4291 | } |
4292 | ||
9babb374 BB |
4293 | ace_t full_access[] = { |
4294 | {(uid_t)-1, ACE_ALL_PERMS, ACE_EVERYONE, 0} | |
4295 | }; | |
4296 | ||
572e2857 BB |
4297 | /* |
4298 | * inputs: | |
4299 | * zc_name name of containing filesystem | |
4300 | * zc_obj object # beyond which we want next in-use object # | |
4301 | * | |
4302 | * outputs: | |
4303 | * zc_obj next in-use object # | |
4304 | */ | |
4305 | static int | |
4306 | zfs_ioc_next_obj(zfs_cmd_t *zc) | |
4307 | { | |
4308 | objset_t *os = NULL; | |
4309 | int error; | |
4310 | ||
4311 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
4312 | if (error) | |
4313 | return (error); | |
4314 | ||
4315 | error = dmu_object_next(os, &zc->zc_obj, B_FALSE, | |
4316 | os->os_dsl_dataset->ds_phys->ds_prev_snap_txg); | |
4317 | ||
4318 | dmu_objset_rele(os, FTAG); | |
4319 | return (error); | |
4320 | } | |
4321 | ||
4322 | /* | |
4323 | * inputs: | |
4324 | * zc_name name of filesystem | |
4325 | * zc_value prefix name for snapshot | |
4326 | * zc_cleanup_fd cleanup-on-exit file descriptor for calling process | |
4327 | * | |
4328 | * outputs: | |
4329 | */ | |
4330 | static int | |
4331 | zfs_ioc_tmp_snapshot(zfs_cmd_t *zc) | |
4332 | { | |
4333 | char *snap_name; | |
4334 | int error; | |
4335 | ||
4336 | snap_name = kmem_asprintf("%s-%016llx", zc->zc_value, | |
4337 | (u_longlong_t)ddi_get_lbolt64()); | |
4338 | ||
4339 | if (strlen(snap_name) >= MAXNAMELEN) { | |
4340 | strfree(snap_name); | |
4341 | return (E2BIG); | |
4342 | } | |
4343 | ||
4344 | error = dmu_objset_snapshot(zc->zc_name, snap_name, snap_name, | |
4345 | NULL, B_FALSE, B_TRUE, zc->zc_cleanup_fd); | |
4346 | if (error != 0) { | |
4347 | strfree(snap_name); | |
4348 | return (error); | |
4349 | } | |
4350 | ||
4351 | (void) strcpy(zc->zc_value, snap_name); | |
4352 | strfree(snap_name); | |
4353 | return (0); | |
4354 | } | |
4355 | ||
4356 | /* | |
4357 | * inputs: | |
4358 | * zc_name name of "to" snapshot | |
4359 | * zc_value name of "from" snapshot | |
4360 | * zc_cookie file descriptor to write diff data on | |
4361 | * | |
4362 | * outputs: | |
4363 | * dmu_diff_record_t's to the file descriptor | |
4364 | */ | |
4365 | static int | |
4366 | zfs_ioc_diff(zfs_cmd_t *zc) | |
4367 | { | |
4368 | objset_t *fromsnap; | |
4369 | objset_t *tosnap; | |
4370 | file_t *fp; | |
4371 | offset_t off; | |
4372 | int error; | |
4373 | ||
4374 | error = dmu_objset_hold(zc->zc_name, FTAG, &tosnap); | |
4375 | if (error) | |
4376 | return (error); | |
4377 | ||
4378 | error = dmu_objset_hold(zc->zc_value, FTAG, &fromsnap); | |
4379 | if (error) { | |
4380 | dmu_objset_rele(tosnap, FTAG); | |
4381 | return (error); | |
4382 | } | |
4383 | ||
4384 | fp = getf(zc->zc_cookie); | |
4385 | if (fp == NULL) { | |
4386 | dmu_objset_rele(fromsnap, FTAG); | |
4387 | dmu_objset_rele(tosnap, FTAG); | |
4388 | return (EBADF); | |
4389 | } | |
4390 | ||
4391 | off = fp->f_offset; | |
4392 | ||
4393 | error = dmu_diff(tosnap, fromsnap, fp->f_vnode, &off); | |
4394 | ||
4395 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
4396 | fp->f_offset = off; | |
4397 | releasef(zc->zc_cookie); | |
4398 | ||
4399 | dmu_objset_rele(fromsnap, FTAG); | |
4400 | dmu_objset_rele(tosnap, FTAG); | |
4401 | return (error); | |
4402 | } | |
4403 | ||
9babb374 BB |
4404 | /* |
4405 | * Remove all ACL files in shares dir | |
4406 | */ | |
9ee7fac5 | 4407 | #ifdef HAVE_SHARE |
9babb374 BB |
4408 | static int |
4409 | zfs_smb_acl_purge(znode_t *dzp) | |
4410 | { | |
4411 | zap_cursor_t zc; | |
4412 | zap_attribute_t zap; | |
3558fd73 | 4413 | zfs_sb_t *zsb = ZTOZSB(dzp); |
9babb374 BB |
4414 | int error; |
4415 | ||
3558fd73 | 4416 | for (zap_cursor_init(&zc, zsb->z_os, dzp->z_id); |
9babb374 BB |
4417 | (error = zap_cursor_retrieve(&zc, &zap)) == 0; |
4418 | zap_cursor_advance(&zc)) { | |
4419 | if ((error = VOP_REMOVE(ZTOV(dzp), zap.za_name, kcred, | |
4420 | NULL, 0)) != 0) | |
4421 | break; | |
4422 | } | |
4423 | zap_cursor_fini(&zc); | |
4424 | return (error); | |
4425 | } | |
9ee7fac5 | 4426 | #endif /* HAVE SHARE */ |
9babb374 BB |
4427 | |
4428 | static int | |
4429 | zfs_ioc_smb_acl(zfs_cmd_t *zc) | |
4430 | { | |
9ee7fac5 | 4431 | #ifdef HAVE_SHARE |
9babb374 BB |
4432 | vnode_t *vp; |
4433 | znode_t *dzp; | |
4434 | vnode_t *resourcevp = NULL; | |
4435 | znode_t *sharedir; | |
3558fd73 | 4436 | zfs_sb_t *zsb; |
9babb374 BB |
4437 | nvlist_t *nvlist; |
4438 | char *src, *target; | |
4439 | vattr_t vattr; | |
4440 | vsecattr_t vsec; | |
4441 | int error = 0; | |
4442 | ||
4443 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
4444 | NO_FOLLOW, NULL, &vp)) != 0) | |
4445 | return (error); | |
4446 | ||
4447 | /* Now make sure mntpnt and dataset are ZFS */ | |
4448 | ||
4449 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
4450 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
4451 | zc->zc_name) != 0)) { | |
4452 | VN_RELE(vp); | |
4453 | return (EINVAL); | |
4454 | } | |
4455 | ||
4456 | dzp = VTOZ(vp); | |
3558fd73 BB |
4457 | zsb = ZTOZSB(dzp); |
4458 | ZFS_ENTER(zsb); | |
9babb374 BB |
4459 | |
4460 | /* | |
4461 | * Create share dir if its missing. | |
4462 | */ | |
3558fd73 BB |
4463 | mutex_enter(&zsb->z_lock); |
4464 | if (zsb->z_shares_dir == 0) { | |
9babb374 BB |
4465 | dmu_tx_t *tx; |
4466 | ||
3558fd73 | 4467 | tx = dmu_tx_create(zsb->z_os); |
9babb374 BB |
4468 | dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, TRUE, |
4469 | ZFS_SHARES_DIR); | |
4470 | dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL); | |
4471 | error = dmu_tx_assign(tx, TXG_WAIT); | |
4472 | if (error) { | |
4473 | dmu_tx_abort(tx); | |
4474 | } else { | |
3558fd73 | 4475 | error = zfs_create_share_dir(zsb, tx); |
9babb374 BB |
4476 | dmu_tx_commit(tx); |
4477 | } | |
4478 | if (error) { | |
3558fd73 | 4479 | mutex_exit(&zsb->z_lock); |
9babb374 | 4480 | VN_RELE(vp); |
3558fd73 | 4481 | ZFS_EXIT(zsb); |
9babb374 BB |
4482 | return (error); |
4483 | } | |
4484 | } | |
3558fd73 | 4485 | mutex_exit(&zsb->z_lock); |
9babb374 | 4486 | |
3558fd73 BB |
4487 | ASSERT(zsb->z_shares_dir); |
4488 | if ((error = zfs_zget(zsb, zsb->z_shares_dir, &sharedir)) != 0) { | |
9babb374 | 4489 | VN_RELE(vp); |
3558fd73 | 4490 | ZFS_EXIT(zsb); |
9babb374 BB |
4491 | return (error); |
4492 | } | |
4493 | ||
4494 | switch (zc->zc_cookie) { | |
4495 | case ZFS_SMB_ACL_ADD: | |
4496 | vattr.va_mask = AT_MODE|AT_UID|AT_GID|AT_TYPE; | |
9babb374 BB |
4497 | vattr.va_mode = S_IFREG|0777; |
4498 | vattr.va_uid = 0; | |
4499 | vattr.va_gid = 0; | |
4500 | ||
4501 | vsec.vsa_mask = VSA_ACE; | |
4502 | vsec.vsa_aclentp = &full_access; | |
4503 | vsec.vsa_aclentsz = sizeof (full_access); | |
4504 | vsec.vsa_aclcnt = 1; | |
4505 | ||
4506 | error = VOP_CREATE(ZTOV(sharedir), zc->zc_string, | |
4507 | &vattr, EXCL, 0, &resourcevp, kcred, 0, NULL, &vsec); | |
4508 | if (resourcevp) | |
4509 | VN_RELE(resourcevp); | |
4510 | break; | |
4511 | ||
4512 | case ZFS_SMB_ACL_REMOVE: | |
4513 | error = VOP_REMOVE(ZTOV(sharedir), zc->zc_string, kcred, | |
4514 | NULL, 0); | |
4515 | break; | |
4516 | ||
4517 | case ZFS_SMB_ACL_RENAME: | |
4518 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
4519 | zc->zc_nvlist_src_size, zc->zc_iflags, &nvlist)) != 0) { | |
4520 | VN_RELE(vp); | |
3558fd73 | 4521 | ZFS_EXIT(zsb); |
9babb374 BB |
4522 | return (error); |
4523 | } | |
4524 | if (nvlist_lookup_string(nvlist, ZFS_SMB_ACL_SRC, &src) || | |
4525 | nvlist_lookup_string(nvlist, ZFS_SMB_ACL_TARGET, | |
4526 | &target)) { | |
4527 | VN_RELE(vp); | |
4528 | VN_RELE(ZTOV(sharedir)); | |
3558fd73 | 4529 | ZFS_EXIT(zsb); |
428870ff | 4530 | nvlist_free(nvlist); |
9babb374 BB |
4531 | return (error); |
4532 | } | |
4533 | error = VOP_RENAME(ZTOV(sharedir), src, ZTOV(sharedir), target, | |
4534 | kcred, NULL, 0); | |
4535 | nvlist_free(nvlist); | |
4536 | break; | |
4537 | ||
4538 | case ZFS_SMB_ACL_PURGE: | |
4539 | error = zfs_smb_acl_purge(sharedir); | |
4540 | break; | |
4541 | ||
4542 | default: | |
4543 | error = EINVAL; | |
4544 | break; | |
4545 | } | |
4546 | ||
4547 | VN_RELE(vp); | |
4548 | VN_RELE(ZTOV(sharedir)); | |
4549 | ||
3558fd73 | 4550 | ZFS_EXIT(zsb); |
9babb374 BB |
4551 | |
4552 | return (error); | |
325f0235 BB |
4553 | #else |
4554 | return (ENOTSUP); | |
9ee7fac5 | 4555 | #endif /* HAVE_SHARE */ |
9babb374 BB |
4556 | } |
4557 | ||
45d1cae3 BB |
4558 | /* |
4559 | * inputs: | |
572e2857 BB |
4560 | * zc_name name of filesystem |
4561 | * zc_value short name of snap | |
4562 | * zc_string user-supplied tag for this hold | |
4563 | * zc_cookie recursive flag | |
4564 | * zc_temphold set if hold is temporary | |
4565 | * zc_cleanup_fd cleanup-on-exit file descriptor for calling process | |
4566 | * zc_sendobj if non-zero, the objid for zc_name@zc_value | |
4567 | * zc_createtxg if zc_sendobj is non-zero, snap must have zc_createtxg | |
45d1cae3 BB |
4568 | * |
4569 | * outputs: none | |
4570 | */ | |
4571 | static int | |
4572 | zfs_ioc_hold(zfs_cmd_t *zc) | |
4573 | { | |
4574 | boolean_t recursive = zc->zc_cookie; | |
572e2857 BB |
4575 | spa_t *spa; |
4576 | dsl_pool_t *dp; | |
4577 | dsl_dataset_t *ds; | |
4578 | int error; | |
4579 | minor_t minor = 0; | |
45d1cae3 BB |
4580 | |
4581 | if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0) | |
4582 | return (EINVAL); | |
4583 | ||
572e2857 BB |
4584 | if (zc->zc_sendobj == 0) { |
4585 | return (dsl_dataset_user_hold(zc->zc_name, zc->zc_value, | |
4586 | zc->zc_string, recursive, zc->zc_temphold, | |
4587 | zc->zc_cleanup_fd)); | |
4588 | } | |
4589 | ||
4590 | if (recursive) | |
4591 | return (EINVAL); | |
4592 | ||
4593 | error = spa_open(zc->zc_name, &spa, FTAG); | |
4594 | if (error) | |
4595 | return (error); | |
4596 | ||
4597 | dp = spa_get_dsl(spa); | |
4598 | rw_enter(&dp->dp_config_rwlock, RW_READER); | |
4599 | error = dsl_dataset_hold_obj(dp, zc->zc_sendobj, FTAG, &ds); | |
4600 | rw_exit(&dp->dp_config_rwlock); | |
4601 | spa_close(spa, FTAG); | |
4602 | if (error) | |
4603 | return (error); | |
4604 | ||
4605 | /* | |
4606 | * Until we have a hold on this snapshot, it's possible that | |
4607 | * zc_sendobj could've been destroyed and reused as part | |
4608 | * of a later txg. Make sure we're looking at the right object. | |
4609 | */ | |
4610 | if (zc->zc_createtxg != ds->ds_phys->ds_creation_txg) { | |
4611 | dsl_dataset_rele(ds, FTAG); | |
4612 | return (ENOENT); | |
4613 | } | |
4614 | ||
4615 | if (zc->zc_cleanup_fd != -1 && zc->zc_temphold) { | |
4616 | error = zfs_onexit_fd_hold(zc->zc_cleanup_fd, &minor); | |
4617 | if (error) { | |
4618 | dsl_dataset_rele(ds, FTAG); | |
4619 | return (error); | |
4620 | } | |
4621 | } | |
4622 | ||
4623 | error = dsl_dataset_user_hold_for_send(ds, zc->zc_string, | |
4624 | zc->zc_temphold); | |
4625 | if (minor != 0) { | |
4626 | if (error == 0) { | |
4627 | dsl_register_onexit_hold_cleanup(ds, zc->zc_string, | |
4628 | minor); | |
4629 | } | |
4630 | zfs_onexit_fd_rele(zc->zc_cleanup_fd); | |
4631 | } | |
4632 | dsl_dataset_rele(ds, FTAG); | |
4633 | ||
4634 | return (error); | |
45d1cae3 BB |
4635 | } |
4636 | ||
4637 | /* | |
4638 | * inputs: | |
572e2857 | 4639 | * zc_name name of dataset from which we're releasing a user hold |
45d1cae3 | 4640 | * zc_value short name of snap |
572e2857 | 4641 | * zc_string user-supplied tag for this hold |
45d1cae3 BB |
4642 | * zc_cookie recursive flag |
4643 | * | |
572e2857 | 4644 | * outputs: none |
45d1cae3 BB |
4645 | */ |
4646 | static int | |
4647 | zfs_ioc_release(zfs_cmd_t *zc) | |
4648 | { | |
4649 | boolean_t recursive = zc->zc_cookie; | |
4650 | ||
4651 | if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0) | |
4652 | return (EINVAL); | |
4653 | ||
4654 | return (dsl_dataset_user_release(zc->zc_name, zc->zc_value, | |
4655 | zc->zc_string, recursive)); | |
4656 | } | |
4657 | ||
4658 | /* | |
4659 | * inputs: | |
4660 | * zc_name name of filesystem | |
4661 | * | |
4662 | * outputs: | |
4663 | * zc_nvlist_src{_size} nvlist of snapshot holds | |
4664 | */ | |
4665 | static int | |
4666 | zfs_ioc_get_holds(zfs_cmd_t *zc) | |
4667 | { | |
4668 | nvlist_t *nvp; | |
4669 | int error; | |
4670 | ||
4671 | if ((error = dsl_dataset_get_holds(zc->zc_name, &nvp)) == 0) { | |
4672 | error = put_nvlist(zc, nvp); | |
4673 | nvlist_free(nvp); | |
4674 | } | |
4675 | ||
4676 | return (error); | |
4677 | } | |
4678 | ||
26685276 BB |
4679 | /* |
4680 | * inputs: | |
4681 | * zc_guid flags (ZEVENT_NONBLOCK) | |
4682 | * | |
4683 | * outputs: | |
4684 | * zc_nvlist_dst next nvlist event | |
4685 | * zc_cookie dropped events since last get | |
4686 | * zc_cleanup_fd cleanup-on-exit file descriptor | |
4687 | */ | |
4688 | static int | |
4689 | zfs_ioc_events_next(zfs_cmd_t *zc) | |
4690 | { | |
4691 | zfs_zevent_t *ze; | |
4692 | nvlist_t *event = NULL; | |
4693 | minor_t minor; | |
4694 | uint64_t dropped = 0; | |
4695 | int error; | |
4696 | ||
4697 | error = zfs_zevent_fd_hold(zc->zc_cleanup_fd, &minor, &ze); | |
4698 | if (error != 0) | |
4699 | return (error); | |
4700 | ||
4701 | do { | |
baa40d45 BB |
4702 | error = zfs_zevent_next(ze, &event, |
4703 | &zc->zc_nvlist_dst_size, &dropped); | |
26685276 BB |
4704 | if (event != NULL) { |
4705 | zc->zc_cookie = dropped; | |
4706 | error = put_nvlist(zc, event); | |
baa40d45 | 4707 | nvlist_free(event); |
26685276 BB |
4708 | } |
4709 | ||
4710 | if (zc->zc_guid & ZEVENT_NONBLOCK) | |
4711 | break; | |
4712 | ||
4713 | if ((error == 0) || (error != ENOENT)) | |
4714 | break; | |
4715 | ||
4716 | error = zfs_zevent_wait(ze); | |
4717 | if (error) | |
4718 | break; | |
4719 | } while (1); | |
4720 | ||
4721 | zfs_zevent_fd_rele(zc->zc_cleanup_fd); | |
4722 | ||
4723 | return (error); | |
4724 | } | |
4725 | ||
4726 | /* | |
4727 | * outputs: | |
4728 | * zc_cookie cleared events count | |
4729 | */ | |
4730 | static int | |
4731 | zfs_ioc_events_clear(zfs_cmd_t *zc) | |
4732 | { | |
4733 | int count; | |
4734 | ||
4735 | zfs_zevent_drain_all(&count); | |
4736 | zc->zc_cookie = count; | |
4737 | ||
4738 | return 0; | |
4739 | } | |
4740 | ||
34dc7c2f BB |
4741 | /* |
4742 | * pool create, destroy, and export don't log the history as part of | |
4743 | * zfsdev_ioctl, but rather zfs_ioc_pool_create, and zfs_ioc_pool_export | |
4744 | * do the logging of those commands. | |
4745 | */ | |
4746 | static zfs_ioc_vec_t zfs_ioc_vec[] = { | |
9babb374 | 4747 | { zfs_ioc_pool_create, zfs_secpolicy_config, POOL_NAME, B_FALSE, |
572e2857 | 4748 | POOL_CHECK_NONE }, |
9babb374 | 4749 | { zfs_ioc_pool_destroy, zfs_secpolicy_config, POOL_NAME, B_FALSE, |
572e2857 | 4750 | POOL_CHECK_NONE }, |
9babb374 | 4751 | { zfs_ioc_pool_import, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4752 | POOL_CHECK_NONE }, |
9babb374 | 4753 | { zfs_ioc_pool_export, zfs_secpolicy_config, POOL_NAME, B_FALSE, |
572e2857 | 4754 | POOL_CHECK_NONE }, |
9babb374 | 4755 | { zfs_ioc_pool_configs, zfs_secpolicy_none, NO_NAME, B_FALSE, |
572e2857 | 4756 | POOL_CHECK_NONE }, |
9babb374 | 4757 | { zfs_ioc_pool_stats, zfs_secpolicy_read, POOL_NAME, B_FALSE, |
572e2857 | 4758 | POOL_CHECK_NONE }, |
9babb374 | 4759 | { zfs_ioc_pool_tryimport, zfs_secpolicy_config, NO_NAME, B_FALSE, |
572e2857 | 4760 | POOL_CHECK_NONE }, |
428870ff | 4761 | { zfs_ioc_pool_scan, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4762 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4763 | { zfs_ioc_pool_freeze, zfs_secpolicy_config, NO_NAME, B_FALSE, |
572e2857 | 4764 | POOL_CHECK_READONLY }, |
9babb374 | 4765 | { zfs_ioc_pool_upgrade, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4766 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4767 | { zfs_ioc_pool_get_history, zfs_secpolicy_config, POOL_NAME, B_FALSE, |
572e2857 | 4768 | POOL_CHECK_NONE }, |
9babb374 | 4769 | { zfs_ioc_vdev_add, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4770 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4771 | { zfs_ioc_vdev_remove, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4772 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4773 | { zfs_ioc_vdev_set_state, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4774 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4775 | { zfs_ioc_vdev_attach, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4776 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4777 | { zfs_ioc_vdev_detach, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4778 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4779 | { zfs_ioc_vdev_setpath, zfs_secpolicy_config, POOL_NAME, B_FALSE, |
572e2857 | 4780 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4781 | { zfs_ioc_vdev_setfru, zfs_secpolicy_config, POOL_NAME, B_FALSE, |
572e2857 | 4782 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4783 | { zfs_ioc_objset_stats, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 | 4784 | POOL_CHECK_SUSPENDED }, |
9babb374 | 4785 | { zfs_ioc_objset_zplprops, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 | 4786 | POOL_CHECK_NONE }, |
9babb374 | 4787 | { zfs_ioc_dataset_list_next, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 | 4788 | POOL_CHECK_SUSPENDED }, |
9babb374 | 4789 | { zfs_ioc_snapshot_list_next, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 BB |
4790 | POOL_CHECK_SUSPENDED }, |
4791 | { zfs_ioc_set_prop, zfs_secpolicy_none, DATASET_NAME, B_TRUE, | |
4792 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
60101509 BB |
4793 | { zfs_ioc_create_minor, zfs_secpolicy_config, DATASET_NAME, B_FALSE, |
4794 | POOL_CHECK_NONE }, | |
4795 | { zfs_ioc_remove_minor, zfs_secpolicy_config, DATASET_NAME, B_FALSE, | |
4796 | POOL_CHECK_NONE }, | |
572e2857 BB |
4797 | { zfs_ioc_create, zfs_secpolicy_create, DATASET_NAME, B_TRUE, |
4798 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
9babb374 | 4799 | { zfs_ioc_destroy, zfs_secpolicy_destroy, DATASET_NAME, B_TRUE, |
572e2857 | 4800 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4801 | { zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME, B_TRUE, |
572e2857 BB |
4802 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
4803 | { zfs_ioc_rename, zfs_secpolicy_rename, DATASET_NAME, B_TRUE, | |
4804 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
4805 | { zfs_ioc_recv, zfs_secpolicy_receive, DATASET_NAME, B_TRUE, | |
4806 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
4807 | { zfs_ioc_send, zfs_secpolicy_send, DATASET_NAME, B_TRUE, | |
4808 | POOL_CHECK_NONE }, | |
9babb374 | 4809 | { zfs_ioc_inject_fault, zfs_secpolicy_inject, NO_NAME, B_FALSE, |
572e2857 | 4810 | POOL_CHECK_NONE }, |
9babb374 | 4811 | { zfs_ioc_clear_fault, zfs_secpolicy_inject, NO_NAME, B_FALSE, |
572e2857 | 4812 | POOL_CHECK_NONE }, |
9babb374 | 4813 | { zfs_ioc_inject_list_next, zfs_secpolicy_inject, NO_NAME, B_FALSE, |
572e2857 | 4814 | POOL_CHECK_NONE }, |
9babb374 | 4815 | { zfs_ioc_error_log, zfs_secpolicy_inject, POOL_NAME, B_FALSE, |
572e2857 BB |
4816 | POOL_CHECK_NONE }, |
4817 | { zfs_ioc_clear, zfs_secpolicy_config, POOL_NAME, B_TRUE, | |
4818 | POOL_CHECK_NONE }, | |
9babb374 | 4819 | { zfs_ioc_promote, zfs_secpolicy_promote, DATASET_NAME, B_TRUE, |
572e2857 | 4820 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
428870ff | 4821 | { zfs_ioc_destroy_snaps, zfs_secpolicy_destroy_snaps, DATASET_NAME, |
572e2857 | 4822 | B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4823 | { zfs_ioc_snapshot, zfs_secpolicy_snapshot, DATASET_NAME, B_TRUE, |
572e2857 BB |
4824 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
4825 | { zfs_ioc_dsobj_to_dsname, zfs_secpolicy_diff, POOL_NAME, B_FALSE, | |
4826 | POOL_CHECK_NONE }, | |
4827 | { zfs_ioc_obj_to_path, zfs_secpolicy_diff, DATASET_NAME, B_FALSE, | |
4828 | POOL_CHECK_SUSPENDED }, | |
9babb374 | 4829 | { zfs_ioc_pool_set_props, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 | 4830 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4831 | { zfs_ioc_pool_get_props, zfs_secpolicy_read, POOL_NAME, B_FALSE, |
572e2857 | 4832 | POOL_CHECK_NONE }, |
9babb374 | 4833 | { zfs_ioc_set_fsacl, zfs_secpolicy_fsacl, DATASET_NAME, B_TRUE, |
572e2857 | 4834 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4835 | { zfs_ioc_get_fsacl, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 BB |
4836 | POOL_CHECK_NONE }, |
4837 | { zfs_ioc_share, zfs_secpolicy_share, DATASET_NAME, B_FALSE, | |
4838 | POOL_CHECK_NONE }, | |
9babb374 | 4839 | { zfs_ioc_inherit_prop, zfs_secpolicy_inherit, DATASET_NAME, B_TRUE, |
572e2857 | 4840 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
9babb374 | 4841 | { zfs_ioc_smb_acl, zfs_secpolicy_smb_acl, DATASET_NAME, B_FALSE, |
572e2857 BB |
4842 | POOL_CHECK_NONE }, |
4843 | { zfs_ioc_userspace_one, zfs_secpolicy_userspace_one, DATASET_NAME, | |
4844 | B_FALSE, POOL_CHECK_NONE }, | |
4845 | { zfs_ioc_userspace_many, zfs_secpolicy_userspace_many, DATASET_NAME, | |
4846 | B_FALSE, POOL_CHECK_NONE }, | |
9babb374 | 4847 | { zfs_ioc_userspace_upgrade, zfs_secpolicy_userspace_upgrade, |
572e2857 BB |
4848 | DATASET_NAME, B_FALSE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
4849 | { zfs_ioc_hold, zfs_secpolicy_hold, DATASET_NAME, B_TRUE, | |
4850 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
45d1cae3 | 4851 | { zfs_ioc_release, zfs_secpolicy_release, DATASET_NAME, B_TRUE, |
572e2857 | 4852 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
45d1cae3 | 4853 | { zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 | 4854 | POOL_CHECK_SUSPENDED }, |
428870ff | 4855 | { zfs_ioc_objset_recvd_props, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
572e2857 | 4856 | POOL_CHECK_NONE }, |
428870ff | 4857 | { zfs_ioc_vdev_split, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
572e2857 BB |
4858 | POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, |
4859 | { zfs_ioc_next_obj, zfs_secpolicy_read, DATASET_NAME, B_FALSE, | |
4860 | POOL_CHECK_NONE }, | |
4861 | { zfs_ioc_diff, zfs_secpolicy_diff, DATASET_NAME, B_FALSE, | |
4862 | POOL_CHECK_NONE }, | |
4863 | { zfs_ioc_tmp_snapshot, zfs_secpolicy_tmp_snapshot, DATASET_NAME, | |
4864 | B_FALSE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }, | |
4865 | { zfs_ioc_obj_to_stats, zfs_secpolicy_diff, DATASET_NAME, B_FALSE, | |
26685276 BB |
4866 | POOL_CHECK_SUSPENDED }, |
4867 | { zfs_ioc_events_next, zfs_secpolicy_config, NO_NAME, B_FALSE, | |
4868 | POOL_CHECK_NONE }, | |
4869 | { zfs_ioc_events_clear, zfs_secpolicy_config, NO_NAME, B_FALSE, | |
4870 | POOL_CHECK_NONE }, | |
34dc7c2f BB |
4871 | }; |
4872 | ||
9babb374 | 4873 | int |
572e2857 BB |
4874 | pool_status_check(const char *name, zfs_ioc_namecheck_t type, |
4875 | zfs_ioc_poolcheck_t check) | |
9babb374 BB |
4876 | { |
4877 | spa_t *spa; | |
4878 | int error; | |
4879 | ||
4880 | ASSERT(type == POOL_NAME || type == DATASET_NAME); | |
4881 | ||
572e2857 BB |
4882 | if (check & POOL_CHECK_NONE) |
4883 | return (0); | |
4884 | ||
9babb374 BB |
4885 | error = spa_open(name, &spa, FTAG); |
4886 | if (error == 0) { | |
572e2857 | 4887 | if ((check & POOL_CHECK_SUSPENDED) && spa_suspended(spa)) |
9babb374 | 4888 | error = EAGAIN; |
572e2857 BB |
4889 | else if ((check & POOL_CHECK_READONLY) && !spa_writeable(spa)) |
4890 | error = EROFS; | |
9babb374 BB |
4891 | spa_close(spa, FTAG); |
4892 | } | |
4893 | return (error); | |
4894 | } | |
4895 | ||
325f0235 BB |
4896 | static void * |
4897 | zfsdev_get_state_impl(minor_t minor, enum zfsdev_state_type which) | |
4898 | { | |
4899 | zfsdev_state_t *zs; | |
4900 | ||
4901 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
4902 | ||
4903 | for (zs = list_head(&zfsdev_state_list); zs != NULL; | |
4904 | zs = list_next(&zfsdev_state_list, zs)) { | |
4905 | if (zs->zs_minor == minor) { | |
4906 | switch (which) { | |
4907 | case ZST_ONEXIT: return (zs->zs_onexit); | |
4908 | case ZST_ZEVENT: return (zs->zs_zevent); | |
4909 | case ZST_ALL: return (zs); | |
4910 | } | |
4911 | } | |
4912 | } | |
4913 | ||
4914 | return NULL; | |
4915 | } | |
4916 | ||
4917 | void * | |
4918 | zfsdev_get_state(minor_t minor, enum zfsdev_state_type which) | |
4919 | { | |
4920 | void *ptr; | |
4921 | ||
4922 | mutex_enter(&zfsdev_state_lock); | |
4923 | ptr = zfsdev_get_state_impl(minor, which); | |
4924 | mutex_exit(&zfsdev_state_lock); | |
4925 | ||
4926 | return ptr; | |
4927 | } | |
4928 | ||
4929 | minor_t | |
4930 | zfsdev_getminor(struct file *filp) | |
4931 | { | |
4932 | ASSERT(filp != NULL); | |
4933 | ASSERT(filp->private_data != NULL); | |
4934 | ||
4935 | return (((zfsdev_state_t *)filp->private_data)->zs_minor); | |
4936 | } | |
4937 | ||
572e2857 | 4938 | /* |
325f0235 BB |
4939 | * Find a free minor number. The zfsdev_state_list is expected to |
4940 | * be short since it is only a list of currently open file handles. | |
572e2857 BB |
4941 | */ |
4942 | minor_t | |
4943 | zfsdev_minor_alloc(void) | |
4944 | { | |
325f0235 | 4945 | static minor_t last_minor = 0; |
572e2857 BB |
4946 | minor_t m; |
4947 | ||
4948 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
4949 | ||
4950 | for (m = last_minor + 1; m != last_minor; m++) { | |
4951 | if (m > ZFSDEV_MAX_MINOR) | |
4952 | m = 1; | |
325f0235 | 4953 | if (zfsdev_get_state_impl(m, ZST_ALL) == NULL) { |
572e2857 BB |
4954 | last_minor = m; |
4955 | return (m); | |
4956 | } | |
4957 | } | |
4958 | ||
4959 | return (0); | |
4960 | } | |
4961 | ||
4962 | static int | |
325f0235 | 4963 | zfsdev_state_init(struct file *filp) |
572e2857 | 4964 | { |
325f0235 | 4965 | zfsdev_state_t *zs; |
572e2857 | 4966 | minor_t minor; |
572e2857 BB |
4967 | |
4968 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); | |
572e2857 | 4969 | |
325f0235 BB |
4970 | minor = zfsdev_minor_alloc(); |
4971 | if (minor == 0) | |
4972 | return (ENXIO); | |
4973 | ||
4974 | zs = kmem_zalloc( sizeof(zfsdev_state_t), KM_SLEEP); | |
4975 | if (zs == NULL) | |
4976 | return (ENOMEM); | |
572e2857 | 4977 | |
325f0235 BB |
4978 | zs->zs_file = filp; |
4979 | zs->zs_minor = minor; | |
4980 | filp->private_data = zs; | |
572e2857 | 4981 | |
325f0235 BB |
4982 | zfs_onexit_init((zfs_onexit_t **)&zs->zs_onexit); |
4983 | zfs_zevent_init((zfs_zevent_t **)&zs->zs_zevent); | |
572e2857 | 4984 | |
325f0235 | 4985 | list_insert_tail(&zfsdev_state_list, zs); |
572e2857 BB |
4986 | |
4987 | return (0); | |
4988 | } | |
4989 | ||
325f0235 BB |
4990 | static int |
4991 | zfsdev_state_destroy(struct file *filp) | |
572e2857 | 4992 | { |
325f0235 | 4993 | zfsdev_state_t *zs; |
572e2857 | 4994 | |
325f0235 BB |
4995 | ASSERT(MUTEX_HELD(&zfsdev_state_lock)); |
4996 | ASSERT(filp->private_data != NULL); | |
572e2857 | 4997 | |
325f0235 BB |
4998 | zs = filp->private_data; |
4999 | zfs_onexit_destroy(zs->zs_onexit); | |
5000 | zfs_zevent_destroy(zs->zs_zevent); | |
572e2857 | 5001 | |
325f0235 BB |
5002 | list_remove(&zfsdev_state_list, zs); |
5003 | kmem_free(zs, sizeof(zfsdev_state_t)); | |
572e2857 | 5004 | |
325f0235 | 5005 | return 0; |
572e2857 BB |
5006 | } |
5007 | ||
5008 | static int | |
325f0235 | 5009 | zfsdev_open(struct inode *ino, struct file *filp) |
572e2857 | 5010 | { |
325f0235 | 5011 | int error; |
572e2857 | 5012 | |
325f0235 BB |
5013 | mutex_enter(&zfsdev_state_lock); |
5014 | error = zfsdev_state_init(filp); | |
5015 | mutex_exit(&zfsdev_state_lock); | |
572e2857 | 5016 | |
325f0235 | 5017 | return (-error); |
572e2857 BB |
5018 | } |
5019 | ||
5020 | static int | |
325f0235 | 5021 | zfsdev_release(struct inode *ino, struct file *filp) |
572e2857 | 5022 | { |
325f0235 | 5023 | int error; |
572e2857 BB |
5024 | |
5025 | mutex_enter(&zfsdev_state_lock); | |
325f0235 | 5026 | error = zfsdev_state_destroy(filp); |
572e2857 BB |
5027 | mutex_exit(&zfsdev_state_lock); |
5028 | ||
325f0235 | 5029 | return (-error); |
572e2857 BB |
5030 | } |
5031 | ||
325f0235 BB |
5032 | static long |
5033 | zfsdev_ioctl(struct file *filp, unsigned cmd, unsigned long arg) | |
34dc7c2f BB |
5034 | { |
5035 | zfs_cmd_t *zc; | |
5036 | uint_t vec; | |
325f0235 | 5037 | int error, rc, flag = 0; |
34dc7c2f BB |
5038 | |
5039 | vec = cmd - ZFS_IOC; | |
34dc7c2f | 5040 | if (vec >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0])) |
325f0235 | 5041 | return (-EINVAL); |
34dc7c2f | 5042 | |
00b46022 | 5043 | zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP | KM_NODEBUG); |
34dc7c2f | 5044 | |
9babb374 | 5045 | error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag); |
428870ff BB |
5046 | if (error != 0) |
5047 | error = EFAULT; | |
34dc7c2f | 5048 | |
428870ff | 5049 | if ((error == 0) && !(flag & FKIOCTL)) |
325f0235 | 5050 | error = zfs_ioc_vec[vec].zvec_secpolicy(zc, NULL); |
34dc7c2f BB |
5051 | |
5052 | /* | |
5053 | * Ensure that all pool/dataset names are valid before we pass down to | |
5054 | * the lower layers. | |
5055 | */ | |
5056 | if (error == 0) { | |
5057 | zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; | |
9babb374 | 5058 | zc->zc_iflags = flag & FKIOCTL; |
34dc7c2f BB |
5059 | switch (zfs_ioc_vec[vec].zvec_namecheck) { |
5060 | case POOL_NAME: | |
5061 | if (pool_namecheck(zc->zc_name, NULL, NULL) != 0) | |
5062 | error = EINVAL; | |
572e2857 BB |
5063 | error = pool_status_check(zc->zc_name, |
5064 | zfs_ioc_vec[vec].zvec_namecheck, | |
5065 | zfs_ioc_vec[vec].zvec_pool_check); | |
34dc7c2f BB |
5066 | break; |
5067 | ||
5068 | case DATASET_NAME: | |
5069 | if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0) | |
5070 | error = EINVAL; | |
572e2857 BB |
5071 | error = pool_status_check(zc->zc_name, |
5072 | zfs_ioc_vec[vec].zvec_namecheck, | |
5073 | zfs_ioc_vec[vec].zvec_pool_check); | |
34dc7c2f BB |
5074 | break; |
5075 | ||
5076 | case NO_NAME: | |
5077 | break; | |
5078 | } | |
5079 | } | |
5080 | ||
5081 | if (error == 0) | |
5082 | error = zfs_ioc_vec[vec].zvec_func(zc); | |
5083 | ||
9babb374 | 5084 | rc = ddi_copyout(zc, (void *)arg, sizeof (zfs_cmd_t), flag); |
34dc7c2f | 5085 | if (error == 0) { |
428870ff BB |
5086 | if (rc != 0) |
5087 | error = EFAULT; | |
9babb374 | 5088 | if (zfs_ioc_vec[vec].zvec_his_log) |
34dc7c2f BB |
5089 | zfs_log_history(zc); |
5090 | } | |
5091 | ||
5092 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
325f0235 | 5093 | return (-error); |
34dc7c2f BB |
5094 | } |
5095 | ||
325f0235 BB |
5096 | #ifdef CONFIG_COMPAT |
5097 | static long | |
5098 | zfsdev_compat_ioctl(struct file *filp, unsigned cmd, unsigned long arg) | |
34dc7c2f | 5099 | { |
325f0235 BB |
5100 | return zfsdev_ioctl(filp, cmd, arg); |
5101 | } | |
5102 | #else | |
f5e79474 | 5103 | #define zfsdev_compat_ioctl NULL |
325f0235 | 5104 | #endif |
34dc7c2f | 5105 | |
325f0235 BB |
5106 | static const struct file_operations zfsdev_fops = { |
5107 | .open = zfsdev_open, | |
5108 | .release = zfsdev_release, | |
5109 | .unlocked_ioctl = zfsdev_ioctl, | |
5110 | .compat_ioctl = zfsdev_compat_ioctl, | |
5111 | .owner = THIS_MODULE, | |
5112 | }; | |
34dc7c2f | 5113 | |
325f0235 BB |
5114 | static struct miscdevice zfs_misc = { |
5115 | .minor = MISC_DYNAMIC_MINOR, | |
5116 | .name = ZFS_DRIVER, | |
5117 | .fops = &zfsdev_fops, | |
5118 | }; | |
34dc7c2f BB |
5119 | |
5120 | static int | |
325f0235 | 5121 | zfs_attach(void) |
34dc7c2f | 5122 | { |
325f0235 | 5123 | int error; |
34dc7c2f | 5124 | |
325f0235 BB |
5125 | mutex_init(&zfsdev_state_lock, NULL, MUTEX_DEFAULT, NULL); |
5126 | list_create(&zfsdev_state_list, sizeof (zfsdev_state_t), | |
5127 | offsetof(zfsdev_state_t, zs_next)); | |
34dc7c2f | 5128 | |
325f0235 BB |
5129 | error = misc_register(&zfs_misc); |
5130 | if (error) { | |
5131 | printk(KERN_INFO "ZFS: misc_register() failed %d\n", error); | |
5132 | return (error); | |
5133 | } | |
34dc7c2f | 5134 | |
325f0235 | 5135 | return (0); |
34dc7c2f BB |
5136 | } |
5137 | ||
325f0235 BB |
5138 | static void |
5139 | zfs_detach(void) | |
34dc7c2f | 5140 | { |
325f0235 | 5141 | int error; |
34dc7c2f | 5142 | |
325f0235 BB |
5143 | error = misc_deregister(&zfs_misc); |
5144 | if (error) | |
5145 | printk(KERN_INFO "ZFS: misc_deregister() failed %d\n", error); | |
34dc7c2f | 5146 | |
325f0235 BB |
5147 | mutex_destroy(&zfsdev_state_lock); |
5148 | list_destroy(&zfsdev_state_list); | |
34dc7c2f BB |
5149 | } |
5150 | ||
34dc7c2f BB |
5151 | uint_t zfs_fsyncer_key; |
5152 | extern uint_t rrw_tsd_key; | |
325f0235 BB |
5153 | |
5154 | #ifdef DEBUG | |
5155 | #define ZFS_DEBUG_STR " (DEBUG mode)" | |
5156 | #else | |
5157 | #define ZFS_DEBUG_STR "" | |
5158 | #endif | |
34dc7c2f BB |
5159 | |
5160 | int | |
5161 | _init(void) | |
5162 | { | |
5163 | int error; | |
5164 | ||
5165 | spa_init(FREAD | FWRITE); | |
5166 | zfs_init(); | |
34dc7c2f | 5167 | |
325f0235 BB |
5168 | if ((error = zvol_init()) != 0) |
5169 | goto out1; | |
5170 | ||
5171 | if ((error = zfs_attach()) != 0) | |
5172 | goto out2; | |
34dc7c2f BB |
5173 | |
5174 | tsd_create(&zfs_fsyncer_key, NULL); | |
5175 | tsd_create(&rrw_tsd_key, NULL); | |
5176 | ||
9ee7fac5 | 5177 | #ifdef HAVE_SHARE |
34dc7c2f | 5178 | mutex_init(&zfs_share_lock, NULL, MUTEX_DEFAULT, NULL); |
9ee7fac5 | 5179 | #endif /* HAVE_SHARE */ |
325f0235 | 5180 | |
a23cc0a4 DH |
5181 | printk(KERN_NOTICE "ZFS: Loaded module v%s%s, " |
5182 | "ZFS pool version %s, ZFS filesystem version %s\n", | |
5183 | ZFS_META_VERSION, ZFS_DEBUG_STR, | |
5184 | SPA_VERSION_STRING, ZPL_VERSION_STRING); | |
34dc7c2f BB |
5185 | |
5186 | return (0); | |
325f0235 BB |
5187 | |
5188 | out2: | |
5189 | (void) zvol_fini(); | |
5190 | out1: | |
5191 | zfs_fini(); | |
5192 | spa_fini(); | |
5193 | printk(KERN_NOTICE "ZFS: Failed to Load ZFS Filesystem v%s%s" | |
5194 | ", rc = %d\n", ZFS_META_VERSION, ZFS_DEBUG_STR, error); | |
5195 | ||
5196 | return (error); | |
34dc7c2f BB |
5197 | } |
5198 | ||
5199 | int | |
5200 | _fini(void) | |
5201 | { | |
325f0235 | 5202 | zfs_detach(); |
34dc7c2f BB |
5203 | zvol_fini(); |
5204 | zfs_fini(); | |
5205 | spa_fini(); | |
9ee7fac5 | 5206 | #ifdef HAVE_SHARE |
34dc7c2f BB |
5207 | if (zfs_nfsshare_inited) |
5208 | (void) ddi_modclose(nfs_mod); | |
5209 | if (zfs_smbshare_inited) | |
5210 | (void) ddi_modclose(smbsrv_mod); | |
5211 | if (zfs_nfsshare_inited || zfs_smbshare_inited) | |
5212 | (void) ddi_modclose(sharefs_mod); | |
5213 | ||
34dc7c2f | 5214 | mutex_destroy(&zfs_share_lock); |
9ee7fac5 | 5215 | #endif /* HAVE_SHARE */ |
325f0235 | 5216 | tsd_destroy(&zfs_fsyncer_key); |
3fc050aa | 5217 | tsd_destroy(&rrw_tsd_key); |
34dc7c2f | 5218 | |
a23cc0a4 | 5219 | printk(KERN_NOTICE "ZFS: Unloaded module v%s%s\n", |
325f0235 | 5220 | ZFS_META_VERSION, ZFS_DEBUG_STR); |
34dc7c2f | 5221 | |
325f0235 | 5222 | return (0); |
34dc7c2f | 5223 | } |
325f0235 BB |
5224 | |
5225 | #ifdef HAVE_SPL | |
5226 | spl_module_init(_init); | |
5227 | spl_module_exit(_fini); | |
5228 | ||
5229 | MODULE_DESCRIPTION("ZFS"); | |
5230 | MODULE_AUTHOR(ZFS_META_AUTHOR); | |
5231 | MODULE_LICENSE(ZFS_META_LICENSE); | |
5232 | #endif /* HAVE_SPL */ |