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34dc7c2f BB |
1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
4 | * The contents of this file are subject to the terms of the | |
5 | * Common Development and Distribution License (the "License"). | |
6 | * You may not use this file except in compliance with the License. | |
7 | * | |
8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 | * or http://www.opensolaris.org/os/licensing. | |
10 | * See the License for the specific language governing permissions | |
11 | * and limitations under the License. | |
12 | * | |
13 | * When distributing Covered Code, include this CDDL HEADER in each | |
14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 | * If applicable, add the following below this CDDL HEADER, with the | |
16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
21 | /* | |
428870ff | 22 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
34dc7c2f BB |
23 | */ |
24 | ||
34dc7c2f BB |
25 | #include <sys/types.h> |
26 | #include <sys/param.h> | |
27 | #include <sys/errno.h> | |
28 | #include <sys/uio.h> | |
29 | #include <sys/buf.h> | |
30 | #include <sys/modctl.h> | |
31 | #include <sys/open.h> | |
32 | #include <sys/file.h> | |
33 | #include <sys/kmem.h> | |
34 | #include <sys/conf.h> | |
35 | #include <sys/cmn_err.h> | |
36 | #include <sys/stat.h> | |
37 | #include <sys/zfs_ioctl.h> | |
428870ff | 38 | #include <sys/zfs_vfsops.h> |
34dc7c2f BB |
39 | #include <sys/zfs_znode.h> |
40 | #include <sys/zap.h> | |
41 | #include <sys/spa.h> | |
42 | #include <sys/spa_impl.h> | |
43 | #include <sys/vdev.h> | |
428870ff | 44 | #include <sys/priv_impl.h> |
34dc7c2f BB |
45 | #include <sys/dmu.h> |
46 | #include <sys/dsl_dir.h> | |
47 | #include <sys/dsl_dataset.h> | |
48 | #include <sys/dsl_prop.h> | |
49 | #include <sys/dsl_deleg.h> | |
50 | #include <sys/dmu_objset.h> | |
51 | #include <sys/ddi.h> | |
52 | #include <sys/sunddi.h> | |
53 | #include <sys/sunldi.h> | |
54 | #include <sys/policy.h> | |
55 | #include <sys/zone.h> | |
56 | #include <sys/nvpair.h> | |
57 | #include <sys/pathname.h> | |
58 | #include <sys/mount.h> | |
59 | #include <sys/sdt.h> | |
60 | #include <sys/fs/zfs.h> | |
61 | #include <sys/zfs_ctldir.h> | |
62 | #include <sys/zfs_dir.h> | |
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> | |
67 | ||
68 | #include "zfs_namecheck.h" | |
69 | #include "zfs_prop.h" | |
70 | #include "zfs_deleg.h" | |
428870ff | 71 | #include "zfs_comutil.h" |
34dc7c2f BB |
72 | |
73 | extern struct modlfs zfs_modlfs; | |
74 | ||
75 | extern void zfs_init(void); | |
76 | extern void zfs_fini(void); | |
77 | ||
78 | ldi_ident_t zfs_li = NULL; | |
79 | dev_info_t *zfs_dip; | |
80 | ||
81 | typedef int zfs_ioc_func_t(zfs_cmd_t *); | |
82 | typedef int zfs_secpolicy_func_t(zfs_cmd_t *, cred_t *); | |
83 | ||
9babb374 BB |
84 | typedef enum { |
85 | NO_NAME, | |
86 | POOL_NAME, | |
87 | DATASET_NAME | |
88 | } zfs_ioc_namecheck_t; | |
89 | ||
34dc7c2f BB |
90 | typedef struct zfs_ioc_vec { |
91 | zfs_ioc_func_t *zvec_func; | |
92 | zfs_secpolicy_func_t *zvec_secpolicy; | |
9babb374 | 93 | zfs_ioc_namecheck_t zvec_namecheck; |
34dc7c2f | 94 | boolean_t zvec_his_log; |
9babb374 | 95 | boolean_t zvec_pool_check; |
34dc7c2f BB |
96 | } zfs_ioc_vec_t; |
97 | ||
9babb374 BB |
98 | /* This array is indexed by zfs_userquota_prop_t */ |
99 | static const char *userquota_perms[] = { | |
100 | ZFS_DELEG_PERM_USERUSED, | |
101 | ZFS_DELEG_PERM_USERQUOTA, | |
102 | ZFS_DELEG_PERM_GROUPUSED, | |
103 | ZFS_DELEG_PERM_GROUPQUOTA, | |
104 | }; | |
105 | ||
106 | static int zfs_ioc_userspace_upgrade(zfs_cmd_t *zc); | |
428870ff BB |
107 | static int zfs_check_settable(const char *name, nvpair_t *property, |
108 | cred_t *cr); | |
109 | static int zfs_check_clearable(char *dataset, nvlist_t *props, | |
110 | nvlist_t **errors); | |
b128c09f BB |
111 | static int zfs_fill_zplprops_root(uint64_t, nvlist_t *, nvlist_t *, |
112 | boolean_t *); | |
428870ff | 113 | int zfs_set_prop_nvlist(const char *, zprop_source_t, nvlist_t *, nvlist_t **); |
b128c09f | 114 | |
34dc7c2f BB |
115 | /* _NOTE(PRINTFLIKE(4)) - this is printf-like, but lint is too whiney */ |
116 | void | |
117 | __dprintf(const char *file, const char *func, int line, const char *fmt, ...) | |
118 | { | |
119 | const char *newfile; | |
428870ff | 120 | char buf[512]; |
34dc7c2f BB |
121 | va_list adx; |
122 | ||
123 | /* | |
124 | * Get rid of annoying "../common/" prefix to filename. | |
125 | */ | |
126 | newfile = strrchr(file, '/'); | |
127 | if (newfile != NULL) { | |
128 | newfile = newfile + 1; /* Get rid of leading / */ | |
129 | } else { | |
130 | newfile = file; | |
131 | } | |
132 | ||
133 | va_start(adx, fmt); | |
134 | (void) vsnprintf(buf, sizeof (buf), fmt, adx); | |
135 | va_end(adx); | |
136 | ||
137 | /* | |
138 | * To get this data, use the zfs-dprintf probe as so: | |
139 | * dtrace -q -n 'zfs-dprintf \ | |
140 | * /stringof(arg0) == "dbuf.c"/ \ | |
141 | * {printf("%s: %s", stringof(arg1), stringof(arg3))}' | |
142 | * arg0 = file name | |
143 | * arg1 = function name | |
144 | * arg2 = line number | |
145 | * arg3 = message | |
146 | */ | |
147 | DTRACE_PROBE4(zfs__dprintf, | |
148 | char *, newfile, char *, func, int, line, char *, buf); | |
149 | } | |
150 | ||
151 | static void | |
152 | history_str_free(char *buf) | |
153 | { | |
154 | kmem_free(buf, HIS_MAX_RECORD_LEN); | |
155 | } | |
156 | ||
157 | static char * | |
158 | history_str_get(zfs_cmd_t *zc) | |
159 | { | |
160 | char *buf; | |
161 | ||
162 | if (zc->zc_history == NULL) | |
163 | return (NULL); | |
164 | ||
165 | buf = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP); | |
166 | if (copyinstr((void *)(uintptr_t)zc->zc_history, | |
167 | buf, HIS_MAX_RECORD_LEN, NULL) != 0) { | |
168 | history_str_free(buf); | |
169 | return (NULL); | |
170 | } | |
171 | ||
172 | buf[HIS_MAX_RECORD_LEN -1] = '\0'; | |
173 | ||
174 | return (buf); | |
175 | } | |
176 | ||
177 | /* | |
b128c09f BB |
178 | * Check to see if the named dataset is currently defined as bootable |
179 | */ | |
180 | static boolean_t | |
181 | zfs_is_bootfs(const char *name) | |
182 | { | |
428870ff | 183 | objset_t *os; |
b128c09f | 184 | |
428870ff BB |
185 | if (dmu_objset_hold(name, FTAG, &os) == 0) { |
186 | boolean_t ret; | |
187 | ret = (dmu_objset_id(os) == spa_bootfs(dmu_objset_spa(os))); | |
188 | dmu_objset_rele(os, FTAG); | |
189 | return (ret); | |
b128c09f | 190 | } |
428870ff | 191 | return (B_FALSE); |
b128c09f BB |
192 | } |
193 | ||
194 | /* | |
195 | * zfs_earlier_version | |
34dc7c2f BB |
196 | * |
197 | * Return non-zero if the spa version is less than requested version. | |
198 | */ | |
199 | static int | |
b128c09f | 200 | zfs_earlier_version(const char *name, int version) |
34dc7c2f | 201 | { |
34dc7c2f BB |
202 | spa_t *spa; |
203 | ||
204 | if (spa_open(name, &spa, FTAG) == 0) { | |
205 | if (spa_version(spa) < version) { | |
206 | spa_close(spa, FTAG); | |
207 | return (1); | |
208 | } | |
209 | spa_close(spa, FTAG); | |
210 | } | |
211 | return (0); | |
212 | } | |
213 | ||
214 | /* | |
b128c09f | 215 | * zpl_earlier_version |
34dc7c2f | 216 | * |
b128c09f | 217 | * Return TRUE if the ZPL version is less than requested version. |
34dc7c2f | 218 | */ |
b128c09f BB |
219 | static boolean_t |
220 | zpl_earlier_version(const char *name, int version) | |
34dc7c2f BB |
221 | { |
222 | objset_t *os; | |
b128c09f | 223 | boolean_t rc = B_TRUE; |
34dc7c2f | 224 | |
428870ff | 225 | if (dmu_objset_hold(name, FTAG, &os) == 0) { |
b128c09f | 226 | uint64_t zplversion; |
34dc7c2f | 227 | |
428870ff BB |
228 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
229 | dmu_objset_rele(os, FTAG); | |
230 | return (B_TRUE); | |
231 | } | |
232 | /* XXX reading from non-owned objset */ | |
b128c09f BB |
233 | if (zfs_get_zplprop(os, ZFS_PROP_VERSION, &zplversion) == 0) |
234 | rc = zplversion < version; | |
428870ff | 235 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
236 | } |
237 | return (rc); | |
238 | } | |
239 | ||
240 | static void | |
241 | zfs_log_history(zfs_cmd_t *zc) | |
242 | { | |
243 | spa_t *spa; | |
244 | char *buf; | |
245 | ||
246 | if ((buf = history_str_get(zc)) == NULL) | |
247 | return; | |
248 | ||
249 | if (spa_open(zc->zc_name, &spa, FTAG) == 0) { | |
250 | if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY) | |
251 | (void) spa_history_log(spa, buf, LOG_CMD_NORMAL); | |
252 | spa_close(spa, FTAG); | |
253 | } | |
254 | history_str_free(buf); | |
255 | } | |
256 | ||
257 | /* | |
258 | * Policy for top-level read operations (list pools). Requires no privileges, | |
259 | * and can be used in the local zone, as there is no associated dataset. | |
260 | */ | |
261 | /* ARGSUSED */ | |
262 | static int | |
263 | zfs_secpolicy_none(zfs_cmd_t *zc, cred_t *cr) | |
264 | { | |
265 | return (0); | |
266 | } | |
267 | ||
268 | /* | |
269 | * Policy for dataset read operations (list children, get statistics). Requires | |
270 | * no privileges, but must be visible in the local zone. | |
271 | */ | |
272 | /* ARGSUSED */ | |
273 | static int | |
274 | zfs_secpolicy_read(zfs_cmd_t *zc, cred_t *cr) | |
275 | { | |
276 | if (INGLOBALZONE(curproc) || | |
277 | zone_dataset_visible(zc->zc_name, NULL)) | |
278 | return (0); | |
279 | ||
280 | return (ENOENT); | |
281 | } | |
282 | ||
283 | static int | |
284 | zfs_dozonecheck(const char *dataset, cred_t *cr) | |
285 | { | |
286 | uint64_t zoned; | |
287 | int writable = 1; | |
288 | ||
289 | /* | |
290 | * The dataset must be visible by this zone -- check this first | |
291 | * so they don't see EPERM on something they shouldn't know about. | |
292 | */ | |
293 | if (!INGLOBALZONE(curproc) && | |
294 | !zone_dataset_visible(dataset, &writable)) | |
295 | return (ENOENT); | |
296 | ||
297 | if (dsl_prop_get_integer(dataset, "zoned", &zoned, NULL)) | |
298 | return (ENOENT); | |
299 | ||
300 | if (INGLOBALZONE(curproc)) { | |
301 | /* | |
302 | * If the fs is zoned, only root can access it from the | |
303 | * global zone. | |
304 | */ | |
305 | if (secpolicy_zfs(cr) && zoned) | |
306 | return (EPERM); | |
307 | } else { | |
308 | /* | |
309 | * If we are in a local zone, the 'zoned' property must be set. | |
310 | */ | |
311 | if (!zoned) | |
312 | return (EPERM); | |
313 | ||
314 | /* must be writable by this zone */ | |
315 | if (!writable) | |
316 | return (EPERM); | |
317 | } | |
318 | return (0); | |
319 | } | |
320 | ||
321 | int | |
322 | zfs_secpolicy_write_perms(const char *name, const char *perm, cred_t *cr) | |
323 | { | |
324 | int error; | |
325 | ||
326 | error = zfs_dozonecheck(name, cr); | |
327 | if (error == 0) { | |
328 | error = secpolicy_zfs(cr); | |
329 | if (error) | |
330 | error = dsl_deleg_access(name, perm, cr); | |
331 | } | |
332 | return (error); | |
333 | } | |
334 | ||
428870ff BB |
335 | /* |
336 | * Policy for setting the security label property. | |
337 | * | |
338 | * Returns 0 for success, non-zero for access and other errors. | |
339 | */ | |
34dc7c2f | 340 | static int |
428870ff | 341 | zfs_set_slabel_policy(const char *name, char *strval, cred_t *cr) |
34dc7c2f | 342 | { |
428870ff BB |
343 | char ds_hexsl[MAXNAMELEN]; |
344 | bslabel_t ds_sl, new_sl; | |
345 | boolean_t new_default = FALSE; | |
346 | uint64_t zoned; | |
347 | int needed_priv = -1; | |
348 | int error; | |
349 | ||
350 | /* First get the existing dataset label. */ | |
351 | error = dsl_prop_get(name, zfs_prop_to_name(ZFS_PROP_MLSLABEL), | |
352 | 1, sizeof (ds_hexsl), &ds_hexsl, NULL); | |
353 | if (error) | |
354 | return (EPERM); | |
355 | ||
356 | if (strcasecmp(strval, ZFS_MLSLABEL_DEFAULT) == 0) | |
357 | new_default = TRUE; | |
358 | ||
359 | /* The label must be translatable */ | |
360 | if (!new_default && (hexstr_to_label(strval, &new_sl) != 0)) | |
361 | return (EINVAL); | |
362 | ||
363 | /* | |
364 | * In a non-global zone, disallow attempts to set a label that | |
365 | * doesn't match that of the zone; otherwise no other checks | |
366 | * are needed. | |
367 | */ | |
368 | if (!INGLOBALZONE(curproc)) { | |
369 | if (new_default || !blequal(&new_sl, CR_SL(CRED()))) | |
370 | return (EPERM); | |
371 | return (0); | |
372 | } | |
373 | ||
374 | /* | |
375 | * For global-zone datasets (i.e., those whose zoned property is | |
376 | * "off", verify that the specified new label is valid for the | |
377 | * global zone. | |
378 | */ | |
379 | if (dsl_prop_get_integer(name, | |
380 | zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL)) | |
381 | return (EPERM); | |
382 | if (!zoned) { | |
383 | if (zfs_check_global_label(name, strval) != 0) | |
384 | return (EPERM); | |
385 | } | |
386 | ||
387 | /* | |
388 | * If the existing dataset label is nondefault, check if the | |
389 | * dataset is mounted (label cannot be changed while mounted). | |
390 | * Get the zfsvfs; if there isn't one, then the dataset isn't | |
391 | * mounted (or isn't a dataset, doesn't exist, ...). | |
392 | */ | |
393 | if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) != 0) { | |
394 | objset_t *os; | |
395 | static char *setsl_tag = "setsl_tag"; | |
396 | ||
397 | /* | |
398 | * Try to own the dataset; abort if there is any error, | |
399 | * (e.g., already mounted, in use, or other error). | |
400 | */ | |
401 | error = dmu_objset_own(name, DMU_OST_ZFS, B_TRUE, | |
402 | setsl_tag, &os); | |
403 | if (error) | |
404 | return (EPERM); | |
405 | ||
406 | dmu_objset_disown(os, setsl_tag); | |
407 | ||
408 | if (new_default) { | |
409 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
410 | goto out_check; | |
411 | } | |
412 | ||
413 | if (hexstr_to_label(strval, &new_sl) != 0) | |
414 | return (EPERM); | |
415 | ||
416 | if (blstrictdom(&ds_sl, &new_sl)) | |
417 | needed_priv = PRIV_FILE_DOWNGRADE_SL; | |
418 | else if (blstrictdom(&new_sl, &ds_sl)) | |
419 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
420 | } else { | |
421 | /* dataset currently has a default label */ | |
422 | if (!new_default) | |
423 | needed_priv = PRIV_FILE_UPGRADE_SL; | |
424 | } | |
425 | ||
426 | out_check: | |
427 | if (needed_priv != -1) | |
428 | return (PRIV_POLICY(cr, needed_priv, B_FALSE, EPERM, NULL)); | |
429 | return (0); | |
430 | } | |
431 | ||
432 | static int | |
433 | zfs_secpolicy_setprop(const char *dsname, zfs_prop_t prop, nvpair_t *propval, | |
434 | cred_t *cr) | |
435 | { | |
436 | char *strval; | |
437 | ||
34dc7c2f BB |
438 | /* |
439 | * Check permissions for special properties. | |
440 | */ | |
441 | switch (prop) { | |
442 | case ZFS_PROP_ZONED: | |
443 | /* | |
444 | * Disallow setting of 'zoned' from within a local zone. | |
445 | */ | |
446 | if (!INGLOBALZONE(curproc)) | |
447 | return (EPERM); | |
448 | break; | |
449 | ||
450 | case ZFS_PROP_QUOTA: | |
451 | if (!INGLOBALZONE(curproc)) { | |
452 | uint64_t zoned; | |
453 | char setpoint[MAXNAMELEN]; | |
454 | /* | |
455 | * Unprivileged users are allowed to modify the | |
456 | * quota on things *under* (ie. contained by) | |
457 | * the thing they own. | |
458 | */ | |
428870ff | 459 | if (dsl_prop_get_integer(dsname, "zoned", &zoned, |
34dc7c2f BB |
460 | setpoint)) |
461 | return (EPERM); | |
428870ff | 462 | if (!zoned || strlen(dsname) <= strlen(setpoint)) |
34dc7c2f BB |
463 | return (EPERM); |
464 | } | |
465 | break; | |
428870ff BB |
466 | |
467 | case ZFS_PROP_MLSLABEL: | |
468 | if (!is_system_labeled()) | |
469 | return (EPERM); | |
470 | ||
471 | if (nvpair_value_string(propval, &strval) == 0) { | |
472 | int err; | |
473 | ||
474 | err = zfs_set_slabel_policy(dsname, strval, CRED()); | |
475 | if (err != 0) | |
476 | return (err); | |
477 | } | |
478 | break; | |
34dc7c2f BB |
479 | } |
480 | ||
428870ff | 481 | return (zfs_secpolicy_write_perms(dsname, zfs_prop_to_name(prop), cr)); |
34dc7c2f BB |
482 | } |
483 | ||
484 | int | |
485 | zfs_secpolicy_fsacl(zfs_cmd_t *zc, cred_t *cr) | |
486 | { | |
487 | int error; | |
488 | ||
489 | error = zfs_dozonecheck(zc->zc_name, cr); | |
490 | if (error) | |
491 | return (error); | |
492 | ||
493 | /* | |
494 | * permission to set permissions will be evaluated later in | |
495 | * dsl_deleg_can_allow() | |
496 | */ | |
497 | return (0); | |
498 | } | |
499 | ||
500 | int | |
501 | zfs_secpolicy_rollback(zfs_cmd_t *zc, cred_t *cr) | |
502 | { | |
428870ff BB |
503 | return (zfs_secpolicy_write_perms(zc->zc_name, |
504 | ZFS_DELEG_PERM_ROLLBACK, cr)); | |
34dc7c2f BB |
505 | } |
506 | ||
507 | int | |
508 | zfs_secpolicy_send(zfs_cmd_t *zc, cred_t *cr) | |
509 | { | |
510 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
511 | ZFS_DELEG_PERM_SEND, cr)); | |
512 | } | |
513 | ||
9babb374 BB |
514 | static int |
515 | zfs_secpolicy_deleg_share(zfs_cmd_t *zc, cred_t *cr) | |
516 | { | |
517 | vnode_t *vp; | |
518 | int error; | |
519 | ||
520 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
521 | NO_FOLLOW, NULL, &vp)) != 0) | |
522 | return (error); | |
523 | ||
524 | /* Now make sure mntpnt and dataset are ZFS */ | |
525 | ||
526 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
527 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
528 | zc->zc_name) != 0)) { | |
529 | VN_RELE(vp); | |
530 | return (EPERM); | |
531 | } | |
532 | ||
533 | VN_RELE(vp); | |
534 | return (dsl_deleg_access(zc->zc_name, | |
535 | ZFS_DELEG_PERM_SHARE, cr)); | |
536 | } | |
537 | ||
34dc7c2f BB |
538 | int |
539 | zfs_secpolicy_share(zfs_cmd_t *zc, cred_t *cr) | |
540 | { | |
541 | if (!INGLOBALZONE(curproc)) | |
542 | return (EPERM); | |
543 | ||
544 | if (secpolicy_nfs(cr) == 0) { | |
545 | return (0); | |
546 | } else { | |
9babb374 BB |
547 | return (zfs_secpolicy_deleg_share(zc, cr)); |
548 | } | |
549 | } | |
34dc7c2f | 550 | |
9babb374 BB |
551 | int |
552 | zfs_secpolicy_smb_acl(zfs_cmd_t *zc, cred_t *cr) | |
553 | { | |
554 | if (!INGLOBALZONE(curproc)) | |
555 | return (EPERM); | |
34dc7c2f | 556 | |
9babb374 BB |
557 | if (secpolicy_smb(cr) == 0) { |
558 | return (0); | |
559 | } else { | |
560 | return (zfs_secpolicy_deleg_share(zc, cr)); | |
34dc7c2f BB |
561 | } |
562 | } | |
563 | ||
564 | static int | |
565 | zfs_get_parent(const char *datasetname, char *parent, int parentsize) | |
566 | { | |
567 | char *cp; | |
568 | ||
569 | /* | |
570 | * Remove the @bla or /bla from the end of the name to get the parent. | |
571 | */ | |
572 | (void) strncpy(parent, datasetname, parentsize); | |
573 | cp = strrchr(parent, '@'); | |
574 | if (cp != NULL) { | |
575 | cp[0] = '\0'; | |
576 | } else { | |
577 | cp = strrchr(parent, '/'); | |
578 | if (cp == NULL) | |
579 | return (ENOENT); | |
580 | cp[0] = '\0'; | |
581 | } | |
582 | ||
583 | return (0); | |
584 | } | |
585 | ||
586 | int | |
587 | zfs_secpolicy_destroy_perms(const char *name, cred_t *cr) | |
588 | { | |
589 | int error; | |
590 | ||
591 | if ((error = zfs_secpolicy_write_perms(name, | |
592 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
593 | return (error); | |
594 | ||
595 | return (zfs_secpolicy_write_perms(name, ZFS_DELEG_PERM_DESTROY, cr)); | |
596 | } | |
597 | ||
598 | static int | |
599 | zfs_secpolicy_destroy(zfs_cmd_t *zc, cred_t *cr) | |
600 | { | |
601 | return (zfs_secpolicy_destroy_perms(zc->zc_name, cr)); | |
602 | } | |
603 | ||
604 | /* | |
428870ff BB |
605 | * Destroying snapshots with delegated permissions requires |
606 | * descendent mount and destroy permissions. | |
607 | * Reassemble the full filesystem@snap name so dsl_deleg_access() | |
608 | * can do the correct permission check. | |
609 | * | |
610 | * Since this routine is used when doing a recursive destroy of snapshots | |
611 | * and destroying snapshots requires descendent permissions, a successfull | |
612 | * check of the top level snapshot applies to snapshots of all descendent | |
613 | * datasets as well. | |
34dc7c2f | 614 | */ |
34dc7c2f | 615 | static int |
428870ff | 616 | zfs_secpolicy_destroy_snaps(zfs_cmd_t *zc, cred_t *cr) |
34dc7c2f | 617 | { |
428870ff BB |
618 | int error; |
619 | char *dsname; | |
620 | ||
621 | dsname = kmem_asprintf("%s@%s", zc->zc_name, zc->zc_value); | |
622 | ||
623 | error = zfs_secpolicy_destroy_perms(dsname, cr); | |
624 | ||
625 | strfree(dsname); | |
626 | return (error); | |
34dc7c2f BB |
627 | } |
628 | ||
629 | int | |
630 | zfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr) | |
631 | { | |
428870ff | 632 | char parentname[MAXNAMELEN]; |
34dc7c2f BB |
633 | int error; |
634 | ||
635 | if ((error = zfs_secpolicy_write_perms(from, | |
636 | ZFS_DELEG_PERM_RENAME, cr)) != 0) | |
637 | return (error); | |
638 | ||
639 | if ((error = zfs_secpolicy_write_perms(from, | |
640 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
641 | return (error); | |
642 | ||
643 | if ((error = zfs_get_parent(to, parentname, | |
644 | sizeof (parentname))) != 0) | |
645 | return (error); | |
646 | ||
647 | if ((error = zfs_secpolicy_write_perms(parentname, | |
648 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
649 | return (error); | |
650 | ||
651 | if ((error = zfs_secpolicy_write_perms(parentname, | |
652 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
653 | return (error); | |
654 | ||
655 | return (error); | |
656 | } | |
657 | ||
658 | static int | |
659 | zfs_secpolicy_rename(zfs_cmd_t *zc, cred_t *cr) | |
660 | { | |
661 | return (zfs_secpolicy_rename_perms(zc->zc_name, zc->zc_value, cr)); | |
662 | } | |
663 | ||
664 | static int | |
665 | zfs_secpolicy_promote(zfs_cmd_t *zc, cred_t *cr) | |
666 | { | |
428870ff | 667 | char parentname[MAXNAMELEN]; |
34dc7c2f BB |
668 | objset_t *clone; |
669 | int error; | |
670 | ||
671 | error = zfs_secpolicy_write_perms(zc->zc_name, | |
672 | ZFS_DELEG_PERM_PROMOTE, cr); | |
673 | if (error) | |
674 | return (error); | |
675 | ||
428870ff | 676 | error = dmu_objset_hold(zc->zc_name, FTAG, &clone); |
34dc7c2f BB |
677 | |
678 | if (error == 0) { | |
679 | dsl_dataset_t *pclone = NULL; | |
680 | dsl_dir_t *dd; | |
428870ff | 681 | dd = clone->os_dsl_dataset->ds_dir; |
34dc7c2f BB |
682 | |
683 | rw_enter(&dd->dd_pool->dp_config_rwlock, RW_READER); | |
b128c09f BB |
684 | error = dsl_dataset_hold_obj(dd->dd_pool, |
685 | dd->dd_phys->dd_origin_obj, FTAG, &pclone); | |
34dc7c2f BB |
686 | rw_exit(&dd->dd_pool->dp_config_rwlock); |
687 | if (error) { | |
428870ff | 688 | dmu_objset_rele(clone, FTAG); |
34dc7c2f BB |
689 | return (error); |
690 | } | |
691 | ||
692 | error = zfs_secpolicy_write_perms(zc->zc_name, | |
693 | ZFS_DELEG_PERM_MOUNT, cr); | |
694 | ||
695 | dsl_dataset_name(pclone, parentname); | |
428870ff | 696 | dmu_objset_rele(clone, FTAG); |
b128c09f | 697 | dsl_dataset_rele(pclone, FTAG); |
34dc7c2f BB |
698 | if (error == 0) |
699 | error = zfs_secpolicy_write_perms(parentname, | |
700 | ZFS_DELEG_PERM_PROMOTE, cr); | |
701 | } | |
702 | return (error); | |
703 | } | |
704 | ||
705 | static int | |
706 | zfs_secpolicy_receive(zfs_cmd_t *zc, cred_t *cr) | |
707 | { | |
708 | int error; | |
709 | ||
710 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
711 | ZFS_DELEG_PERM_RECEIVE, cr)) != 0) | |
712 | return (error); | |
713 | ||
714 | if ((error = zfs_secpolicy_write_perms(zc->zc_name, | |
715 | ZFS_DELEG_PERM_MOUNT, cr)) != 0) | |
716 | return (error); | |
717 | ||
718 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
719 | ZFS_DELEG_PERM_CREATE, cr)); | |
720 | } | |
721 | ||
722 | int | |
723 | zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr) | |
724 | { | |
428870ff BB |
725 | return (zfs_secpolicy_write_perms(name, |
726 | ZFS_DELEG_PERM_SNAPSHOT, cr)); | |
34dc7c2f BB |
727 | } |
728 | ||
729 | static int | |
730 | zfs_secpolicy_snapshot(zfs_cmd_t *zc, cred_t *cr) | |
731 | { | |
732 | ||
733 | return (zfs_secpolicy_snapshot_perms(zc->zc_name, cr)); | |
734 | } | |
735 | ||
736 | static int | |
737 | zfs_secpolicy_create(zfs_cmd_t *zc, cred_t *cr) | |
738 | { | |
428870ff BB |
739 | char parentname[MAXNAMELEN]; |
740 | int error; | |
34dc7c2f BB |
741 | |
742 | if ((error = zfs_get_parent(zc->zc_name, parentname, | |
743 | sizeof (parentname))) != 0) | |
744 | return (error); | |
745 | ||
746 | if (zc->zc_value[0] != '\0') { | |
747 | if ((error = zfs_secpolicy_write_perms(zc->zc_value, | |
748 | ZFS_DELEG_PERM_CLONE, cr)) != 0) | |
749 | return (error); | |
750 | } | |
751 | ||
752 | if ((error = zfs_secpolicy_write_perms(parentname, | |
753 | ZFS_DELEG_PERM_CREATE, cr)) != 0) | |
754 | return (error); | |
755 | ||
756 | error = zfs_secpolicy_write_perms(parentname, | |
757 | ZFS_DELEG_PERM_MOUNT, cr); | |
758 | ||
759 | return (error); | |
760 | } | |
761 | ||
762 | static int | |
763 | zfs_secpolicy_umount(zfs_cmd_t *zc, cred_t *cr) | |
764 | { | |
765 | int error; | |
766 | ||
767 | error = secpolicy_fs_unmount(cr, NULL); | |
768 | if (error) { | |
769 | error = dsl_deleg_access(zc->zc_name, ZFS_DELEG_PERM_MOUNT, cr); | |
770 | } | |
771 | return (error); | |
772 | } | |
773 | ||
774 | /* | |
775 | * Policy for pool operations - create/destroy pools, add vdevs, etc. Requires | |
776 | * SYS_CONFIG privilege, which is not available in a local zone. | |
777 | */ | |
778 | /* ARGSUSED */ | |
779 | static int | |
780 | zfs_secpolicy_config(zfs_cmd_t *zc, cred_t *cr) | |
781 | { | |
782 | if (secpolicy_sys_config(cr, B_FALSE) != 0) | |
783 | return (EPERM); | |
784 | ||
785 | return (0); | |
786 | } | |
787 | ||
34dc7c2f BB |
788 | /* |
789 | * Policy for fault injection. Requires all privileges. | |
790 | */ | |
791 | /* ARGSUSED */ | |
792 | static int | |
793 | zfs_secpolicy_inject(zfs_cmd_t *zc, cred_t *cr) | |
794 | { | |
795 | return (secpolicy_zinject(cr)); | |
796 | } | |
797 | ||
798 | static int | |
799 | zfs_secpolicy_inherit(zfs_cmd_t *zc, cred_t *cr) | |
800 | { | |
801 | zfs_prop_t prop = zfs_name_to_prop(zc->zc_value); | |
802 | ||
803 | if (prop == ZPROP_INVAL) { | |
804 | if (!zfs_prop_user(zc->zc_value)) | |
805 | return (EINVAL); | |
806 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
807 | ZFS_DELEG_PERM_USERPROP, cr)); | |
808 | } else { | |
428870ff BB |
809 | return (zfs_secpolicy_setprop(zc->zc_name, prop, |
810 | NULL, cr)); | |
34dc7c2f BB |
811 | } |
812 | } | |
813 | ||
9babb374 BB |
814 | static int |
815 | zfs_secpolicy_userspace_one(zfs_cmd_t *zc, cred_t *cr) | |
816 | { | |
817 | int err = zfs_secpolicy_read(zc, cr); | |
818 | if (err) | |
819 | return (err); | |
820 | ||
821 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
822 | return (EINVAL); | |
823 | ||
824 | if (zc->zc_value[0] == 0) { | |
825 | /* | |
826 | * They are asking about a posix uid/gid. If it's | |
827 | * themself, allow it. | |
828 | */ | |
829 | if (zc->zc_objset_type == ZFS_PROP_USERUSED || | |
830 | zc->zc_objset_type == ZFS_PROP_USERQUOTA) { | |
831 | if (zc->zc_guid == crgetuid(cr)) | |
832 | return (0); | |
833 | } else { | |
834 | if (groupmember(zc->zc_guid, cr)) | |
835 | return (0); | |
836 | } | |
837 | } | |
838 | ||
839 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
840 | userquota_perms[zc->zc_objset_type], cr)); | |
841 | } | |
842 | ||
843 | static int | |
844 | zfs_secpolicy_userspace_many(zfs_cmd_t *zc, cred_t *cr) | |
845 | { | |
846 | int err = zfs_secpolicy_read(zc, cr); | |
847 | if (err) | |
848 | return (err); | |
849 | ||
850 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
851 | return (EINVAL); | |
852 | ||
853 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
854 | userquota_perms[zc->zc_objset_type], cr)); | |
855 | } | |
856 | ||
857 | static int | |
858 | zfs_secpolicy_userspace_upgrade(zfs_cmd_t *zc, cred_t *cr) | |
859 | { | |
428870ff BB |
860 | return (zfs_secpolicy_setprop(zc->zc_name, ZFS_PROP_VERSION, |
861 | NULL, cr)); | |
9babb374 BB |
862 | } |
863 | ||
45d1cae3 BB |
864 | static int |
865 | zfs_secpolicy_hold(zfs_cmd_t *zc, cred_t *cr) | |
866 | { | |
867 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
868 | ZFS_DELEG_PERM_HOLD, cr)); | |
869 | } | |
870 | ||
871 | static int | |
872 | zfs_secpolicy_release(zfs_cmd_t *zc, cred_t *cr) | |
873 | { | |
874 | return (zfs_secpolicy_write_perms(zc->zc_name, | |
875 | ZFS_DELEG_PERM_RELEASE, cr)); | |
876 | } | |
877 | ||
34dc7c2f BB |
878 | /* |
879 | * Returns the nvlist as specified by the user in the zfs_cmd_t. | |
880 | */ | |
881 | static int | |
9babb374 | 882 | get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp) |
34dc7c2f BB |
883 | { |
884 | char *packed; | |
885 | int error; | |
886 | nvlist_t *list = NULL; | |
887 | ||
888 | /* | |
889 | * Read in and unpack the user-supplied nvlist. | |
890 | */ | |
891 | if (size == 0) | |
892 | return (EINVAL); | |
893 | ||
894 | packed = kmem_alloc(size, KM_SLEEP); | |
895 | ||
9babb374 BB |
896 | if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size, |
897 | iflag)) != 0) { | |
34dc7c2f BB |
898 | kmem_free(packed, size); |
899 | return (error); | |
900 | } | |
901 | ||
902 | if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) { | |
903 | kmem_free(packed, size); | |
904 | return (error); | |
905 | } | |
906 | ||
907 | kmem_free(packed, size); | |
908 | ||
909 | *nvp = list; | |
910 | return (0); | |
911 | } | |
912 | ||
428870ff BB |
913 | static int |
914 | fit_error_list(zfs_cmd_t *zc, nvlist_t **errors) | |
915 | { | |
916 | size_t size; | |
917 | ||
918 | VERIFY(nvlist_size(*errors, &size, NV_ENCODE_NATIVE) == 0); | |
919 | ||
920 | if (size > zc->zc_nvlist_dst_size) { | |
921 | nvpair_t *more_errors; | |
922 | int n = 0; | |
923 | ||
924 | if (zc->zc_nvlist_dst_size < 1024) | |
925 | return (ENOMEM); | |
926 | ||
927 | VERIFY(nvlist_add_int32(*errors, ZPROP_N_MORE_ERRORS, 0) == 0); | |
928 | more_errors = nvlist_prev_nvpair(*errors, NULL); | |
929 | ||
930 | do { | |
931 | nvpair_t *pair = nvlist_prev_nvpair(*errors, | |
932 | more_errors); | |
933 | VERIFY(nvlist_remove_nvpair(*errors, pair) == 0); | |
934 | n++; | |
935 | VERIFY(nvlist_size(*errors, &size, | |
936 | NV_ENCODE_NATIVE) == 0); | |
937 | } while (size > zc->zc_nvlist_dst_size); | |
938 | ||
939 | VERIFY(nvlist_remove_nvpair(*errors, more_errors) == 0); | |
940 | VERIFY(nvlist_add_int32(*errors, ZPROP_N_MORE_ERRORS, n) == 0); | |
941 | ASSERT(nvlist_size(*errors, &size, NV_ENCODE_NATIVE) == 0); | |
942 | ASSERT(size <= zc->zc_nvlist_dst_size); | |
943 | } | |
944 | ||
945 | return (0); | |
946 | } | |
947 | ||
34dc7c2f BB |
948 | static int |
949 | put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl) | |
950 | { | |
951 | char *packed = NULL; | |
428870ff | 952 | int error = 0; |
34dc7c2f | 953 | size_t size; |
34dc7c2f BB |
954 | |
955 | VERIFY(nvlist_size(nvl, &size, NV_ENCODE_NATIVE) == 0); | |
956 | ||
957 | if (size > zc->zc_nvlist_dst_size) { | |
958 | error = ENOMEM; | |
959 | } else { | |
960 | packed = kmem_alloc(size, KM_SLEEP); | |
961 | VERIFY(nvlist_pack(nvl, &packed, &size, NV_ENCODE_NATIVE, | |
962 | KM_SLEEP) == 0); | |
428870ff BB |
963 | if (ddi_copyout(packed, (void *)(uintptr_t)zc->zc_nvlist_dst, |
964 | size, zc->zc_iflags) != 0) | |
965 | error = EFAULT; | |
34dc7c2f BB |
966 | kmem_free(packed, size); |
967 | } | |
968 | ||
969 | zc->zc_nvlist_dst_size = size; | |
970 | return (error); | |
971 | } | |
972 | ||
9babb374 | 973 | static int |
428870ff | 974 | getzfsvfs(const char *dsname, zfsvfs_t **zfvp) |
9babb374 BB |
975 | { |
976 | objset_t *os; | |
977 | int error; | |
978 | ||
428870ff | 979 | error = dmu_objset_hold(dsname, FTAG, &os); |
9babb374 BB |
980 | if (error) |
981 | return (error); | |
428870ff BB |
982 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
983 | dmu_objset_rele(os, FTAG); | |
984 | return (EINVAL); | |
985 | } | |
9babb374 | 986 | |
428870ff BB |
987 | mutex_enter(&os->os_user_ptr_lock); |
988 | *zfvp = dmu_objset_get_user(os); | |
989 | if (*zfvp) { | |
990 | VFS_HOLD((*zfvp)->z_vfs); | |
9babb374 BB |
991 | } else { |
992 | error = ESRCH; | |
993 | } | |
428870ff BB |
994 | mutex_exit(&os->os_user_ptr_lock); |
995 | dmu_objset_rele(os, FTAG); | |
9babb374 BB |
996 | return (error); |
997 | } | |
998 | ||
999 | /* | |
1000 | * Find a zfsvfs_t for a mounted filesystem, or create our own, in which | |
1001 | * case its z_vfs will be NULL, and it will be opened as the owner. | |
1002 | */ | |
1003 | static int | |
428870ff | 1004 | zfsvfs_hold(const char *name, void *tag, zfsvfs_t **zfvp) |
9babb374 BB |
1005 | { |
1006 | int error = 0; | |
9babb374 | 1007 | |
428870ff BB |
1008 | if (getzfsvfs(name, zfvp) != 0) |
1009 | error = zfsvfs_create(name, zfvp); | |
9babb374 | 1010 | if (error == 0) { |
428870ff BB |
1011 | rrw_enter(&(*zfvp)->z_teardown_lock, RW_READER, tag); |
1012 | if ((*zfvp)->z_unmounted) { | |
9babb374 BB |
1013 | /* |
1014 | * XXX we could probably try again, since the unmounting | |
1015 | * thread should be just about to disassociate the | |
1016 | * objset from the zfsvfs. | |
1017 | */ | |
428870ff | 1018 | rrw_exit(&(*zfvp)->z_teardown_lock, tag); |
9babb374 BB |
1019 | return (EBUSY); |
1020 | } | |
1021 | } | |
1022 | return (error); | |
1023 | } | |
1024 | ||
1025 | static void | |
1026 | zfsvfs_rele(zfsvfs_t *zfsvfs, void *tag) | |
1027 | { | |
1028 | rrw_exit(&zfsvfs->z_teardown_lock, tag); | |
1029 | ||
1030 | if (zfsvfs->z_vfs) { | |
1031 | VFS_RELE(zfsvfs->z_vfs); | |
1032 | } else { | |
428870ff | 1033 | dmu_objset_disown(zfsvfs->z_os, zfsvfs); |
9babb374 BB |
1034 | zfsvfs_free(zfsvfs); |
1035 | } | |
1036 | } | |
1037 | ||
34dc7c2f BB |
1038 | static int |
1039 | zfs_ioc_pool_create(zfs_cmd_t *zc) | |
1040 | { | |
1041 | int error; | |
1042 | nvlist_t *config, *props = NULL; | |
b128c09f BB |
1043 | nvlist_t *rootprops = NULL; |
1044 | nvlist_t *zplprops = NULL; | |
34dc7c2f BB |
1045 | char *buf; |
1046 | ||
1047 | if (error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1048 | zc->zc_iflags, &config)) |
34dc7c2f BB |
1049 | return (error); |
1050 | ||
1051 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1052 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1053 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1054 | nvlist_free(config); |
1055 | return (error); | |
1056 | } | |
1057 | ||
b128c09f BB |
1058 | if (props) { |
1059 | nvlist_t *nvl = NULL; | |
1060 | uint64_t version = SPA_VERSION; | |
1061 | ||
1062 | (void) nvlist_lookup_uint64(props, | |
1063 | zpool_prop_to_name(ZPOOL_PROP_VERSION), &version); | |
1064 | if (version < SPA_VERSION_INITIAL || version > SPA_VERSION) { | |
1065 | error = EINVAL; | |
1066 | goto pool_props_bad; | |
1067 | } | |
1068 | (void) nvlist_lookup_nvlist(props, ZPOOL_ROOTFS_PROPS, &nvl); | |
1069 | if (nvl) { | |
1070 | error = nvlist_dup(nvl, &rootprops, KM_SLEEP); | |
1071 | if (error != 0) { | |
1072 | nvlist_free(config); | |
1073 | nvlist_free(props); | |
1074 | return (error); | |
1075 | } | |
1076 | (void) nvlist_remove_all(props, ZPOOL_ROOTFS_PROPS); | |
1077 | } | |
1078 | VERIFY(nvlist_alloc(&zplprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
1079 | error = zfs_fill_zplprops_root(version, rootprops, | |
1080 | zplprops, NULL); | |
1081 | if (error) | |
1082 | goto pool_props_bad; | |
1083 | } | |
1084 | ||
34dc7c2f BB |
1085 | buf = history_str_get(zc); |
1086 | ||
b128c09f BB |
1087 | error = spa_create(zc->zc_name, config, props, buf, zplprops); |
1088 | ||
1089 | /* | |
1090 | * Set the remaining root properties | |
1091 | */ | |
428870ff BB |
1092 | if (!error && (error = zfs_set_prop_nvlist(zc->zc_name, |
1093 | ZPROP_SRC_LOCAL, rootprops, NULL)) != 0) | |
b128c09f | 1094 | (void) spa_destroy(zc->zc_name); |
34dc7c2f BB |
1095 | |
1096 | if (buf != NULL) | |
1097 | history_str_free(buf); | |
1098 | ||
b128c09f BB |
1099 | pool_props_bad: |
1100 | nvlist_free(rootprops); | |
1101 | nvlist_free(zplprops); | |
34dc7c2f | 1102 | nvlist_free(config); |
b128c09f | 1103 | nvlist_free(props); |
34dc7c2f BB |
1104 | |
1105 | return (error); | |
1106 | } | |
1107 | ||
1108 | static int | |
1109 | zfs_ioc_pool_destroy(zfs_cmd_t *zc) | |
1110 | { | |
1111 | int error; | |
1112 | zfs_log_history(zc); | |
1113 | error = spa_destroy(zc->zc_name); | |
428870ff BB |
1114 | if (error == 0) |
1115 | zvol_remove_minors(zc->zc_name); | |
34dc7c2f BB |
1116 | return (error); |
1117 | } | |
1118 | ||
1119 | static int | |
1120 | zfs_ioc_pool_import(zfs_cmd_t *zc) | |
1121 | { | |
34dc7c2f BB |
1122 | nvlist_t *config, *props = NULL; |
1123 | uint64_t guid; | |
428870ff | 1124 | int error; |
34dc7c2f BB |
1125 | |
1126 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1127 | zc->zc_iflags, &config)) != 0) |
34dc7c2f BB |
1128 | return (error); |
1129 | ||
1130 | if (zc->zc_nvlist_src_size != 0 && (error = | |
9babb374 BB |
1131 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
1132 | zc->zc_iflags, &props))) { | |
34dc7c2f BB |
1133 | nvlist_free(config); |
1134 | return (error); | |
1135 | } | |
1136 | ||
1137 | if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 || | |
1138 | guid != zc->zc_guid) | |
1139 | error = EINVAL; | |
b128c09f | 1140 | else if (zc->zc_cookie) |
428870ff | 1141 | error = spa_import_verbatim(zc->zc_name, config, props); |
34dc7c2f BB |
1142 | else |
1143 | error = spa_import(zc->zc_name, config, props); | |
1144 | ||
428870ff BB |
1145 | if (zc->zc_nvlist_dst != 0) |
1146 | (void) put_nvlist(zc, config); | |
1147 | ||
34dc7c2f BB |
1148 | nvlist_free(config); |
1149 | ||
1150 | if (props) | |
1151 | nvlist_free(props); | |
1152 | ||
1153 | return (error); | |
1154 | } | |
1155 | ||
1156 | static int | |
1157 | zfs_ioc_pool_export(zfs_cmd_t *zc) | |
1158 | { | |
1159 | int error; | |
b128c09f | 1160 | boolean_t force = (boolean_t)zc->zc_cookie; |
fb5f0bc8 | 1161 | boolean_t hardforce = (boolean_t)zc->zc_guid; |
b128c09f | 1162 | |
34dc7c2f | 1163 | zfs_log_history(zc); |
fb5f0bc8 | 1164 | error = spa_export(zc->zc_name, NULL, force, hardforce); |
428870ff BB |
1165 | if (error == 0) |
1166 | zvol_remove_minors(zc->zc_name); | |
34dc7c2f BB |
1167 | return (error); |
1168 | } | |
1169 | ||
1170 | static int | |
1171 | zfs_ioc_pool_configs(zfs_cmd_t *zc) | |
1172 | { | |
1173 | nvlist_t *configs; | |
1174 | int error; | |
1175 | ||
1176 | if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL) | |
1177 | return (EEXIST); | |
1178 | ||
1179 | error = put_nvlist(zc, configs); | |
1180 | ||
1181 | nvlist_free(configs); | |
1182 | ||
1183 | return (error); | |
1184 | } | |
1185 | ||
1186 | static int | |
1187 | zfs_ioc_pool_stats(zfs_cmd_t *zc) | |
1188 | { | |
1189 | nvlist_t *config; | |
1190 | int error; | |
1191 | int ret = 0; | |
1192 | ||
1193 | error = spa_get_stats(zc->zc_name, &config, zc->zc_value, | |
1194 | sizeof (zc->zc_value)); | |
1195 | ||
1196 | if (config != NULL) { | |
1197 | ret = put_nvlist(zc, config); | |
1198 | nvlist_free(config); | |
1199 | ||
1200 | /* | |
1201 | * The config may be present even if 'error' is non-zero. | |
1202 | * In this case we return success, and preserve the real errno | |
1203 | * in 'zc_cookie'. | |
1204 | */ | |
1205 | zc->zc_cookie = error; | |
1206 | } else { | |
1207 | ret = error; | |
1208 | } | |
1209 | ||
1210 | return (ret); | |
1211 | } | |
1212 | ||
1213 | /* | |
1214 | * Try to import the given pool, returning pool stats as appropriate so that | |
1215 | * user land knows which devices are available and overall pool health. | |
1216 | */ | |
1217 | static int | |
1218 | zfs_ioc_pool_tryimport(zfs_cmd_t *zc) | |
1219 | { | |
1220 | nvlist_t *tryconfig, *config; | |
1221 | int error; | |
1222 | ||
1223 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1224 | zc->zc_iflags, &tryconfig)) != 0) |
34dc7c2f BB |
1225 | return (error); |
1226 | ||
1227 | config = spa_tryimport(tryconfig); | |
1228 | ||
1229 | nvlist_free(tryconfig); | |
1230 | ||
1231 | if (config == NULL) | |
1232 | return (EINVAL); | |
1233 | ||
1234 | error = put_nvlist(zc, config); | |
1235 | nvlist_free(config); | |
1236 | ||
1237 | return (error); | |
1238 | } | |
1239 | ||
428870ff BB |
1240 | /* |
1241 | * inputs: | |
1242 | * zc_name name of the pool | |
1243 | * zc_cookie scan func (pool_scan_func_t) | |
1244 | */ | |
34dc7c2f | 1245 | static int |
428870ff | 1246 | zfs_ioc_pool_scan(zfs_cmd_t *zc) |
34dc7c2f BB |
1247 | { |
1248 | spa_t *spa; | |
1249 | int error; | |
1250 | ||
1251 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1252 | return (error); | |
1253 | ||
428870ff BB |
1254 | if (zc->zc_cookie == POOL_SCAN_NONE) |
1255 | error = spa_scan_stop(spa); | |
1256 | else | |
1257 | error = spa_scan(spa, zc->zc_cookie); | |
34dc7c2f BB |
1258 | |
1259 | spa_close(spa, FTAG); | |
1260 | ||
1261 | return (error); | |
1262 | } | |
1263 | ||
1264 | static int | |
1265 | zfs_ioc_pool_freeze(zfs_cmd_t *zc) | |
1266 | { | |
1267 | spa_t *spa; | |
1268 | int error; | |
1269 | ||
1270 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1271 | if (error == 0) { | |
1272 | spa_freeze(spa); | |
1273 | spa_close(spa, FTAG); | |
1274 | } | |
1275 | return (error); | |
1276 | } | |
1277 | ||
1278 | static int | |
1279 | zfs_ioc_pool_upgrade(zfs_cmd_t *zc) | |
1280 | { | |
1281 | spa_t *spa; | |
1282 | int error; | |
1283 | ||
1284 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1285 | return (error); | |
1286 | ||
1287 | if (zc->zc_cookie < spa_version(spa) || zc->zc_cookie > SPA_VERSION) { | |
1288 | spa_close(spa, FTAG); | |
1289 | return (EINVAL); | |
1290 | } | |
1291 | ||
1292 | spa_upgrade(spa, zc->zc_cookie); | |
1293 | spa_close(spa, FTAG); | |
1294 | ||
1295 | return (error); | |
1296 | } | |
1297 | ||
1298 | static int | |
1299 | zfs_ioc_pool_get_history(zfs_cmd_t *zc) | |
1300 | { | |
1301 | spa_t *spa; | |
1302 | char *hist_buf; | |
1303 | uint64_t size; | |
1304 | int error; | |
1305 | ||
1306 | if ((size = zc->zc_history_len) == 0) | |
1307 | return (EINVAL); | |
1308 | ||
1309 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1310 | return (error); | |
1311 | ||
1312 | if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) { | |
1313 | spa_close(spa, FTAG); | |
1314 | return (ENOTSUP); | |
1315 | } | |
1316 | ||
1317 | hist_buf = kmem_alloc(size, KM_SLEEP); | |
1318 | if ((error = spa_history_get(spa, &zc->zc_history_offset, | |
1319 | &zc->zc_history_len, hist_buf)) == 0) { | |
9babb374 BB |
1320 | error = ddi_copyout(hist_buf, |
1321 | (void *)(uintptr_t)zc->zc_history, | |
1322 | zc->zc_history_len, zc->zc_iflags); | |
34dc7c2f BB |
1323 | } |
1324 | ||
1325 | spa_close(spa, FTAG); | |
1326 | kmem_free(hist_buf, size); | |
1327 | return (error); | |
1328 | } | |
1329 | ||
1330 | static int | |
1331 | zfs_ioc_dsobj_to_dsname(zfs_cmd_t *zc) | |
1332 | { | |
1333 | int error; | |
1334 | ||
1335 | if (error = dsl_dsobj_to_dsname(zc->zc_name, zc->zc_obj, zc->zc_value)) | |
1336 | return (error); | |
1337 | ||
1338 | return (0); | |
1339 | } | |
1340 | ||
428870ff BB |
1341 | /* |
1342 | * inputs: | |
1343 | * zc_name name of filesystem | |
1344 | * zc_obj object to find | |
1345 | * | |
1346 | * outputs: | |
1347 | * zc_value name of object | |
1348 | */ | |
34dc7c2f BB |
1349 | static int |
1350 | zfs_ioc_obj_to_path(zfs_cmd_t *zc) | |
1351 | { | |
428870ff | 1352 | objset_t *os; |
34dc7c2f BB |
1353 | int error; |
1354 | ||
428870ff BB |
1355 | /* XXX reading from objset not owned */ |
1356 | if ((error = dmu_objset_hold(zc->zc_name, FTAG, &os)) != 0) | |
34dc7c2f | 1357 | return (error); |
428870ff BB |
1358 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
1359 | dmu_objset_rele(os, FTAG); | |
1360 | return (EINVAL); | |
1361 | } | |
1362 | error = zfs_obj_to_path(os, zc->zc_obj, zc->zc_value, | |
34dc7c2f | 1363 | sizeof (zc->zc_value)); |
428870ff | 1364 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
1365 | |
1366 | return (error); | |
1367 | } | |
1368 | ||
1369 | static int | |
1370 | zfs_ioc_vdev_add(zfs_cmd_t *zc) | |
1371 | { | |
1372 | spa_t *spa; | |
1373 | int error; | |
1374 | nvlist_t *config, **l2cache, **spares; | |
1375 | uint_t nl2cache = 0, nspares = 0; | |
1376 | ||
1377 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1378 | if (error != 0) | |
1379 | return (error); | |
1380 | ||
1381 | error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1382 | zc->zc_iflags, &config); |
34dc7c2f BB |
1383 | (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_L2CACHE, |
1384 | &l2cache, &nl2cache); | |
1385 | ||
1386 | (void) nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_SPARES, | |
1387 | &spares, &nspares); | |
1388 | ||
1389 | /* | |
1390 | * A root pool with concatenated devices is not supported. | |
1391 | * Thus, can not add a device to a root pool. | |
1392 | * | |
1393 | * Intent log device can not be added to a rootpool because | |
1394 | * during mountroot, zil is replayed, a seperated log device | |
1395 | * can not be accessed during the mountroot time. | |
1396 | * | |
1397 | * l2cache and spare devices are ok to be added to a rootpool. | |
1398 | */ | |
428870ff BB |
1399 | if (spa_bootfs(spa) != 0 && nl2cache == 0 && nspares == 0) { |
1400 | nvlist_free(config); | |
34dc7c2f BB |
1401 | spa_close(spa, FTAG); |
1402 | return (EDOM); | |
1403 | } | |
1404 | ||
1405 | if (error == 0) { | |
1406 | error = spa_vdev_add(spa, config); | |
1407 | nvlist_free(config); | |
1408 | } | |
1409 | spa_close(spa, FTAG); | |
1410 | return (error); | |
1411 | } | |
1412 | ||
428870ff BB |
1413 | /* |
1414 | * inputs: | |
1415 | * zc_name name of the pool | |
1416 | * zc_nvlist_conf nvlist of devices to remove | |
1417 | * zc_cookie to stop the remove? | |
1418 | */ | |
34dc7c2f BB |
1419 | static int |
1420 | zfs_ioc_vdev_remove(zfs_cmd_t *zc) | |
1421 | { | |
1422 | spa_t *spa; | |
1423 | int error; | |
1424 | ||
1425 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1426 | if (error != 0) | |
1427 | return (error); | |
1428 | error = spa_vdev_remove(spa, zc->zc_guid, B_FALSE); | |
1429 | spa_close(spa, FTAG); | |
1430 | return (error); | |
1431 | } | |
1432 | ||
1433 | static int | |
1434 | zfs_ioc_vdev_set_state(zfs_cmd_t *zc) | |
1435 | { | |
1436 | spa_t *spa; | |
1437 | int error; | |
1438 | vdev_state_t newstate = VDEV_STATE_UNKNOWN; | |
1439 | ||
1440 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1441 | return (error); | |
1442 | switch (zc->zc_cookie) { | |
1443 | case VDEV_STATE_ONLINE: | |
1444 | error = vdev_online(spa, zc->zc_guid, zc->zc_obj, &newstate); | |
1445 | break; | |
1446 | ||
1447 | case VDEV_STATE_OFFLINE: | |
1448 | error = vdev_offline(spa, zc->zc_guid, zc->zc_obj); | |
1449 | break; | |
1450 | ||
1451 | case VDEV_STATE_FAULTED: | |
428870ff BB |
1452 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
1453 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
1454 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
1455 | ||
1456 | error = vdev_fault(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1457 | break; |
1458 | ||
1459 | case VDEV_STATE_DEGRADED: | |
428870ff BB |
1460 | if (zc->zc_obj != VDEV_AUX_ERR_EXCEEDED && |
1461 | zc->zc_obj != VDEV_AUX_EXTERNAL) | |
1462 | zc->zc_obj = VDEV_AUX_ERR_EXCEEDED; | |
1463 | ||
1464 | error = vdev_degrade(spa, zc->zc_guid, zc->zc_obj); | |
34dc7c2f BB |
1465 | break; |
1466 | ||
1467 | default: | |
1468 | error = EINVAL; | |
1469 | } | |
1470 | zc->zc_cookie = newstate; | |
1471 | spa_close(spa, FTAG); | |
1472 | return (error); | |
1473 | } | |
1474 | ||
1475 | static int | |
1476 | zfs_ioc_vdev_attach(zfs_cmd_t *zc) | |
1477 | { | |
1478 | spa_t *spa; | |
1479 | int replacing = zc->zc_cookie; | |
1480 | nvlist_t *config; | |
1481 | int error; | |
1482 | ||
1483 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1484 | return (error); | |
1485 | ||
1486 | if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
9babb374 | 1487 | zc->zc_iflags, &config)) == 0) { |
34dc7c2f BB |
1488 | error = spa_vdev_attach(spa, zc->zc_guid, config, replacing); |
1489 | nvlist_free(config); | |
1490 | } | |
1491 | ||
1492 | spa_close(spa, FTAG); | |
1493 | return (error); | |
1494 | } | |
1495 | ||
1496 | static int | |
1497 | zfs_ioc_vdev_detach(zfs_cmd_t *zc) | |
1498 | { | |
1499 | spa_t *spa; | |
1500 | int error; | |
1501 | ||
1502 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1503 | return (error); | |
1504 | ||
fb5f0bc8 | 1505 | error = spa_vdev_detach(spa, zc->zc_guid, 0, B_FALSE); |
34dc7c2f BB |
1506 | |
1507 | spa_close(spa, FTAG); | |
1508 | return (error); | |
1509 | } | |
1510 | ||
428870ff BB |
1511 | static int |
1512 | zfs_ioc_vdev_split(zfs_cmd_t *zc) | |
1513 | { | |
1514 | spa_t *spa; | |
1515 | nvlist_t *config, *props = NULL; | |
1516 | int error; | |
1517 | boolean_t exp = !!(zc->zc_cookie & ZPOOL_EXPORT_AFTER_SPLIT); | |
1518 | ||
1519 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
1520 | return (error); | |
1521 | ||
1522 | if (error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size, | |
1523 | zc->zc_iflags, &config)) { | |
1524 | spa_close(spa, FTAG); | |
1525 | return (error); | |
1526 | } | |
1527 | ||
1528 | if (zc->zc_nvlist_src_size != 0 && (error = | |
1529 | get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
1530 | zc->zc_iflags, &props))) { | |
1531 | spa_close(spa, FTAG); | |
1532 | nvlist_free(config); | |
1533 | return (error); | |
1534 | } | |
1535 | ||
1536 | error = spa_vdev_split_mirror(spa, zc->zc_string, config, props, exp); | |
1537 | ||
1538 | spa_close(spa, FTAG); | |
1539 | ||
1540 | nvlist_free(config); | |
1541 | nvlist_free(props); | |
1542 | ||
1543 | return (error); | |
1544 | } | |
1545 | ||
34dc7c2f BB |
1546 | static int |
1547 | zfs_ioc_vdev_setpath(zfs_cmd_t *zc) | |
1548 | { | |
1549 | spa_t *spa; | |
1550 | char *path = zc->zc_value; | |
1551 | uint64_t guid = zc->zc_guid; | |
1552 | int error; | |
1553 | ||
1554 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1555 | if (error != 0) | |
1556 | return (error); | |
1557 | ||
1558 | error = spa_vdev_setpath(spa, guid, path); | |
1559 | spa_close(spa, FTAG); | |
1560 | return (error); | |
1561 | } | |
1562 | ||
9babb374 BB |
1563 | static int |
1564 | zfs_ioc_vdev_setfru(zfs_cmd_t *zc) | |
1565 | { | |
1566 | spa_t *spa; | |
1567 | char *fru = zc->zc_value; | |
1568 | uint64_t guid = zc->zc_guid; | |
1569 | int error; | |
1570 | ||
1571 | error = spa_open(zc->zc_name, &spa, FTAG); | |
1572 | if (error != 0) | |
1573 | return (error); | |
1574 | ||
1575 | error = spa_vdev_setfru(spa, guid, fru); | |
1576 | spa_close(spa, FTAG); | |
1577 | return (error); | |
1578 | } | |
1579 | ||
34dc7c2f BB |
1580 | /* |
1581 | * inputs: | |
1582 | * zc_name name of filesystem | |
1583 | * zc_nvlist_dst_size size of buffer for property nvlist | |
1584 | * | |
1585 | * outputs: | |
1586 | * zc_objset_stats stats | |
1587 | * zc_nvlist_dst property nvlist | |
1588 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
1589 | */ |
1590 | static int | |
1591 | zfs_ioc_objset_stats(zfs_cmd_t *zc) | |
1592 | { | |
1593 | objset_t *os = NULL; | |
1594 | int error; | |
1595 | nvlist_t *nv; | |
1596 | ||
428870ff | 1597 | if (error = dmu_objset_hold(zc->zc_name, FTAG, &os)) |
34dc7c2f BB |
1598 | return (error); |
1599 | ||
1600 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); | |
1601 | ||
1602 | if (zc->zc_nvlist_dst != 0 && | |
428870ff | 1603 | (error = dsl_prop_get_all(os, &nv)) == 0) { |
34dc7c2f BB |
1604 | dmu_objset_stats(os, nv); |
1605 | /* | |
1606 | * NB: zvol_get_stats() will read the objset contents, | |
1607 | * which we aren't supposed to do with a | |
b128c09f | 1608 | * DS_MODE_USER hold, because it could be |
34dc7c2f | 1609 | * inconsistent. So this is a bit of a workaround... |
428870ff | 1610 | * XXX reading with out owning |
34dc7c2f BB |
1611 | */ |
1612 | if (!zc->zc_objset_stats.dds_inconsistent) { | |
1613 | if (dmu_objset_type(os) == DMU_OST_ZVOL) | |
1614 | VERIFY(zvol_get_stats(os, nv) == 0); | |
1615 | } | |
1616 | error = put_nvlist(zc, nv); | |
1617 | nvlist_free(nv); | |
1618 | } | |
1619 | ||
428870ff BB |
1620 | dmu_objset_rele(os, FTAG); |
1621 | return (error); | |
1622 | } | |
1623 | ||
1624 | /* | |
1625 | * inputs: | |
1626 | * zc_name name of filesystem | |
1627 | * zc_nvlist_dst_size size of buffer for property nvlist | |
1628 | * | |
1629 | * outputs: | |
1630 | * zc_nvlist_dst received property nvlist | |
1631 | * zc_nvlist_dst_size size of received property nvlist | |
1632 | * | |
1633 | * Gets received properties (distinct from local properties on or after | |
1634 | * SPA_VERSION_RECVD_PROPS) for callers who want to differentiate received from | |
1635 | * local property values. | |
1636 | */ | |
1637 | static int | |
1638 | zfs_ioc_objset_recvd_props(zfs_cmd_t *zc) | |
1639 | { | |
1640 | objset_t *os = NULL; | |
1641 | int error; | |
1642 | nvlist_t *nv; | |
1643 | ||
1644 | if (error = dmu_objset_hold(zc->zc_name, FTAG, &os)) | |
1645 | return (error); | |
1646 | ||
1647 | /* | |
1648 | * Without this check, we would return local property values if the | |
1649 | * caller has not already received properties on or after | |
1650 | * SPA_VERSION_RECVD_PROPS. | |
1651 | */ | |
1652 | if (!dsl_prop_get_hasrecvd(os)) { | |
1653 | dmu_objset_rele(os, FTAG); | |
1654 | return (ENOTSUP); | |
1655 | } | |
1656 | ||
1657 | if (zc->zc_nvlist_dst != 0 && | |
1658 | (error = dsl_prop_get_received(os, &nv)) == 0) { | |
1659 | error = put_nvlist(zc, nv); | |
1660 | nvlist_free(nv); | |
1661 | } | |
1662 | ||
1663 | dmu_objset_rele(os, FTAG); | |
34dc7c2f BB |
1664 | return (error); |
1665 | } | |
1666 | ||
1667 | static int | |
1668 | nvl_add_zplprop(objset_t *os, nvlist_t *props, zfs_prop_t prop) | |
1669 | { | |
1670 | uint64_t value; | |
1671 | int error; | |
1672 | ||
1673 | /* | |
1674 | * zfs_get_zplprop() will either find a value or give us | |
1675 | * the default value (if there is one). | |
1676 | */ | |
1677 | if ((error = zfs_get_zplprop(os, prop, &value)) != 0) | |
1678 | return (error); | |
1679 | VERIFY(nvlist_add_uint64(props, zfs_prop_to_name(prop), value) == 0); | |
1680 | return (0); | |
1681 | } | |
1682 | ||
1683 | /* | |
1684 | * inputs: | |
1685 | * zc_name name of filesystem | |
1686 | * zc_nvlist_dst_size size of buffer for zpl property nvlist | |
1687 | * | |
1688 | * outputs: | |
1689 | * zc_nvlist_dst zpl property nvlist | |
1690 | * zc_nvlist_dst_size size of zpl property nvlist | |
1691 | */ | |
1692 | static int | |
1693 | zfs_ioc_objset_zplprops(zfs_cmd_t *zc) | |
1694 | { | |
1695 | objset_t *os; | |
1696 | int err; | |
1697 | ||
428870ff BB |
1698 | /* XXX reading without owning */ |
1699 | if (err = dmu_objset_hold(zc->zc_name, FTAG, &os)) | |
34dc7c2f BB |
1700 | return (err); |
1701 | ||
1702 | dmu_objset_fast_stat(os, &zc->zc_objset_stats); | |
1703 | ||
1704 | /* | |
1705 | * NB: nvl_add_zplprop() will read the objset contents, | |
b128c09f BB |
1706 | * which we aren't supposed to do with a DS_MODE_USER |
1707 | * hold, because it could be inconsistent. | |
34dc7c2f BB |
1708 | */ |
1709 | if (zc->zc_nvlist_dst != NULL && | |
1710 | !zc->zc_objset_stats.dds_inconsistent && | |
1711 | dmu_objset_type(os) == DMU_OST_ZFS) { | |
1712 | nvlist_t *nv; | |
1713 | ||
1714 | VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
1715 | if ((err = nvl_add_zplprop(os, nv, ZFS_PROP_VERSION)) == 0 && | |
1716 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_NORMALIZE)) == 0 && | |
1717 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_UTF8ONLY)) == 0 && | |
1718 | (err = nvl_add_zplprop(os, nv, ZFS_PROP_CASE)) == 0) | |
1719 | err = put_nvlist(zc, nv); | |
1720 | nvlist_free(nv); | |
1721 | } else { | |
1722 | err = ENOENT; | |
1723 | } | |
428870ff | 1724 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
1725 | return (err); |
1726 | } | |
1727 | ||
9babb374 BB |
1728 | static boolean_t |
1729 | dataset_name_hidden(const char *name) | |
1730 | { | |
1731 | /* | |
1732 | * Skip over datasets that are not visible in this zone, | |
1733 | * internal datasets (which have a $ in their name), and | |
1734 | * temporary datasets (which have a % in their name). | |
1735 | */ | |
1736 | if (strchr(name, '$') != NULL) | |
1737 | return (B_TRUE); | |
1738 | if (strchr(name, '%') != NULL) | |
1739 | return (B_TRUE); | |
1740 | if (!INGLOBALZONE(curproc) && !zone_dataset_visible(name, NULL)) | |
1741 | return (B_TRUE); | |
1742 | return (B_FALSE); | |
1743 | } | |
1744 | ||
34dc7c2f BB |
1745 | /* |
1746 | * inputs: | |
1747 | * zc_name name of filesystem | |
1748 | * zc_cookie zap cursor | |
1749 | * zc_nvlist_dst_size size of buffer for property nvlist | |
1750 | * | |
1751 | * outputs: | |
1752 | * zc_name name of next filesystem | |
9babb374 | 1753 | * zc_cookie zap cursor |
34dc7c2f BB |
1754 | * zc_objset_stats stats |
1755 | * zc_nvlist_dst property nvlist | |
1756 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
1757 | */ |
1758 | static int | |
1759 | zfs_ioc_dataset_list_next(zfs_cmd_t *zc) | |
1760 | { | |
1761 | objset_t *os; | |
1762 | int error; | |
1763 | char *p; | |
428870ff | 1764 | size_t orig_len = strlen(zc->zc_name); |
34dc7c2f | 1765 | |
428870ff BB |
1766 | top: |
1767 | if (error = dmu_objset_hold(zc->zc_name, FTAG, &os)) { | |
34dc7c2f BB |
1768 | if (error == ENOENT) |
1769 | error = ESRCH; | |
1770 | return (error); | |
1771 | } | |
1772 | ||
1773 | p = strrchr(zc->zc_name, '/'); | |
1774 | if (p == NULL || p[1] != '\0') | |
1775 | (void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name)); | |
1776 | p = zc->zc_name + strlen(zc->zc_name); | |
1777 | ||
9babb374 BB |
1778 | /* |
1779 | * Pre-fetch the datasets. dmu_objset_prefetch() always returns 0 | |
1780 | * but is not declared void because its called by dmu_objset_find(). | |
1781 | */ | |
d164b209 BB |
1782 | if (zc->zc_cookie == 0) { |
1783 | uint64_t cookie = 0; | |
1784 | int len = sizeof (zc->zc_name) - (p - zc->zc_name); | |
1785 | ||
1786 | while (dmu_dir_list_next(os, len, p, NULL, &cookie) == 0) | |
9babb374 | 1787 | (void) dmu_objset_prefetch(p, NULL); |
d164b209 BB |
1788 | } |
1789 | ||
34dc7c2f BB |
1790 | do { |
1791 | error = dmu_dir_list_next(os, | |
1792 | sizeof (zc->zc_name) - (p - zc->zc_name), p, | |
1793 | NULL, &zc->zc_cookie); | |
1794 | if (error == ENOENT) | |
1795 | error = ESRCH; | |
428870ff BB |
1796 | } while (error == 0 && dataset_name_hidden(zc->zc_name) && |
1797 | !(zc->zc_iflags & FKIOCTL)); | |
1798 | dmu_objset_rele(os, FTAG); | |
34dc7c2f | 1799 | |
428870ff BB |
1800 | /* |
1801 | * If it's an internal dataset (ie. with a '$' in its name), | |
1802 | * don't try to get stats for it, otherwise we'll return ENOENT. | |
1803 | */ | |
1804 | if (error == 0 && strchr(zc->zc_name, '$') == NULL) { | |
34dc7c2f | 1805 | error = zfs_ioc_objset_stats(zc); /* fill in the stats */ |
428870ff BB |
1806 | if (error == ENOENT) { |
1807 | /* We lost a race with destroy, get the next one. */ | |
1808 | zc->zc_name[orig_len] = '\0'; | |
1809 | goto top; | |
1810 | } | |
1811 | } | |
34dc7c2f BB |
1812 | return (error); |
1813 | } | |
1814 | ||
1815 | /* | |
1816 | * inputs: | |
1817 | * zc_name name of filesystem | |
1818 | * zc_cookie zap cursor | |
1819 | * zc_nvlist_dst_size size of buffer for property nvlist | |
1820 | * | |
1821 | * outputs: | |
1822 | * zc_name name of next snapshot | |
1823 | * zc_objset_stats stats | |
1824 | * zc_nvlist_dst property nvlist | |
1825 | * zc_nvlist_dst_size size of property nvlist | |
34dc7c2f BB |
1826 | */ |
1827 | static int | |
1828 | zfs_ioc_snapshot_list_next(zfs_cmd_t *zc) | |
1829 | { | |
1830 | objset_t *os; | |
1831 | int error; | |
1832 | ||
428870ff BB |
1833 | top: |
1834 | if (zc->zc_cookie == 0) | |
1835 | (void) dmu_objset_find(zc->zc_name, dmu_objset_prefetch, | |
1836 | NULL, DS_FIND_SNAPSHOTS); | |
1837 | ||
1838 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
b128c09f BB |
1839 | if (error) |
1840 | return (error == ENOENT ? ESRCH : error); | |
34dc7c2f BB |
1841 | |
1842 | /* | |
1843 | * A dataset name of maximum length cannot have any snapshots, | |
1844 | * so exit immediately. | |
1845 | */ | |
1846 | if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= MAXNAMELEN) { | |
428870ff | 1847 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
1848 | return (ESRCH); |
1849 | } | |
1850 | ||
1851 | error = dmu_snapshot_list_next(os, | |
1852 | sizeof (zc->zc_name) - strlen(zc->zc_name), | |
1853 | zc->zc_name + strlen(zc->zc_name), NULL, &zc->zc_cookie, NULL); | |
428870ff BB |
1854 | dmu_objset_rele(os, FTAG); |
1855 | if (error == 0) { | |
34dc7c2f | 1856 | error = zfs_ioc_objset_stats(zc); /* fill in the stats */ |
428870ff BB |
1857 | if (error == ENOENT) { |
1858 | /* We lost a race with destroy, get the next one. */ | |
1859 | *strchr(zc->zc_name, '@') = '\0'; | |
1860 | goto top; | |
1861 | } | |
1862 | } else if (error == ENOENT) { | |
b128c09f | 1863 | error = ESRCH; |
428870ff | 1864 | } |
34dc7c2f BB |
1865 | |
1866 | /* if we failed, undo the @ that we tacked on to zc_name */ | |
b128c09f | 1867 | if (error) |
34dc7c2f | 1868 | *strchr(zc->zc_name, '@') = '\0'; |
34dc7c2f BB |
1869 | return (error); |
1870 | } | |
1871 | ||
428870ff BB |
1872 | static int |
1873 | zfs_prop_set_userquota(const char *dsname, nvpair_t *pair) | |
34dc7c2f | 1874 | { |
428870ff BB |
1875 | const char *propname = nvpair_name(pair); |
1876 | uint64_t *valary; | |
1877 | unsigned int vallen; | |
1878 | const char *domain; | |
1879 | char *dash; | |
1880 | zfs_userquota_prop_t type; | |
1881 | uint64_t rid; | |
1882 | uint64_t quota; | |
1883 | zfsvfs_t *zfsvfs; | |
1884 | int err; | |
1885 | ||
1886 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
1887 | nvlist_t *attrs; | |
1888 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
1889 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
1890 | &pair) != 0) | |
1891 | return (EINVAL); | |
1892 | } | |
34dc7c2f BB |
1893 | |
1894 | /* | |
428870ff BB |
1895 | * A correctly constructed propname is encoded as |
1896 | * userquota@<rid>-<domain>. | |
34dc7c2f | 1897 | */ |
428870ff BB |
1898 | if ((dash = strchr(propname, '-')) == NULL || |
1899 | nvpair_value_uint64_array(pair, &valary, &vallen) != 0 || | |
1900 | vallen != 3) | |
1901 | return (EINVAL); | |
34dc7c2f | 1902 | |
428870ff BB |
1903 | domain = dash + 1; |
1904 | type = valary[0]; | |
1905 | rid = valary[1]; | |
1906 | quota = valary[2]; | |
34dc7c2f | 1907 | |
428870ff BB |
1908 | err = zfsvfs_hold(dsname, FTAG, &zfsvfs); |
1909 | if (err == 0) { | |
1910 | err = zfs_set_userquota(zfsvfs, type, domain, rid, quota); | |
1911 | zfsvfs_rele(zfsvfs, FTAG); | |
1912 | } | |
9babb374 | 1913 | |
428870ff BB |
1914 | return (err); |
1915 | } | |
34dc7c2f | 1916 | |
428870ff BB |
1917 | /* |
1918 | * If the named property is one that has a special function to set its value, | |
1919 | * return 0 on success and a positive error code on failure; otherwise if it is | |
1920 | * not one of the special properties handled by this function, return -1. | |
1921 | * | |
1922 | * XXX: It would be better for callers of the property interface if we handled | |
1923 | * these special cases in dsl_prop.c (in the dsl layer). | |
1924 | */ | |
1925 | static int | |
1926 | zfs_prop_set_special(const char *dsname, zprop_source_t source, | |
1927 | nvpair_t *pair) | |
1928 | { | |
1929 | const char *propname = nvpair_name(pair); | |
1930 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
1931 | uint64_t intval; | |
1932 | int err; | |
9babb374 | 1933 | |
428870ff BB |
1934 | if (prop == ZPROP_INVAL) { |
1935 | if (zfs_prop_userquota(propname)) | |
1936 | return (zfs_prop_set_userquota(dsname, pair)); | |
1937 | return (-1); | |
1938 | } | |
34dc7c2f | 1939 | |
428870ff BB |
1940 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { |
1941 | nvlist_t *attrs; | |
1942 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
1943 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
1944 | &pair) == 0); | |
1945 | } | |
b128c09f | 1946 | |
428870ff BB |
1947 | if (zfs_prop_get_type(prop) == PROP_TYPE_STRING) |
1948 | return (-1); | |
34dc7c2f | 1949 | |
428870ff | 1950 | VERIFY(0 == nvpair_value_uint64(pair, &intval)); |
34dc7c2f | 1951 | |
428870ff BB |
1952 | switch (prop) { |
1953 | case ZFS_PROP_QUOTA: | |
1954 | err = dsl_dir_set_quota(dsname, source, intval); | |
1955 | break; | |
1956 | case ZFS_PROP_REFQUOTA: | |
1957 | err = dsl_dataset_set_quota(dsname, source, intval); | |
1958 | break; | |
1959 | case ZFS_PROP_RESERVATION: | |
1960 | err = dsl_dir_set_reservation(dsname, source, intval); | |
1961 | break; | |
1962 | case ZFS_PROP_REFRESERVATION: | |
1963 | err = dsl_dataset_set_reservation(dsname, source, intval); | |
1964 | break; | |
1965 | case ZFS_PROP_VOLSIZE: | |
1966 | err = zvol_set_volsize(dsname, ddi_driver_major(zfs_dip), | |
1967 | intval); | |
1968 | break; | |
1969 | case ZFS_PROP_VERSION: | |
1970 | { | |
1971 | zfsvfs_t *zfsvfs; | |
1972 | ||
1973 | if ((err = zfsvfs_hold(dsname, FTAG, &zfsvfs)) != 0) | |
34dc7c2f | 1974 | break; |
b128c09f | 1975 | |
428870ff BB |
1976 | err = zfs_set_version(zfsvfs, intval); |
1977 | zfsvfs_rele(zfsvfs, FTAG); | |
34dc7c2f | 1978 | |
428870ff BB |
1979 | if (err == 0 && intval >= ZPL_VERSION_USERSPACE) { |
1980 | zfs_cmd_t *zc; | |
34dc7c2f | 1981 | |
428870ff BB |
1982 | zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); |
1983 | (void) strcpy(zc->zc_name, dsname); | |
1984 | (void) zfs_ioc_userspace_upgrade(zc); | |
1985 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
34dc7c2f | 1986 | } |
428870ff BB |
1987 | break; |
1988 | } | |
34dc7c2f | 1989 | |
428870ff BB |
1990 | default: |
1991 | err = -1; | |
1992 | } | |
34dc7c2f | 1993 | |
428870ff BB |
1994 | return (err); |
1995 | } | |
34dc7c2f | 1996 | |
428870ff BB |
1997 | /* |
1998 | * This function is best effort. If it fails to set any of the given properties, | |
1999 | * it continues to set as many as it can and returns the first error | |
2000 | * encountered. If the caller provides a non-NULL errlist, it also gives the | |
2001 | * complete list of names of all the properties it failed to set along with the | |
2002 | * corresponding error numbers. The caller is responsible for freeing the | |
2003 | * returned errlist. | |
2004 | * | |
2005 | * If every property is set successfully, zero is returned and the list pointed | |
2006 | * at by errlist is NULL. | |
2007 | */ | |
2008 | int | |
2009 | zfs_set_prop_nvlist(const char *dsname, zprop_source_t source, nvlist_t *nvl, | |
2010 | nvlist_t **errlist) | |
2011 | { | |
2012 | nvpair_t *pair; | |
2013 | nvpair_t *propval; | |
2014 | int rv = 0; | |
2015 | uint64_t intval; | |
2016 | char *strval; | |
2017 | nvlist_t *genericnvl; | |
2018 | nvlist_t *errors; | |
2019 | nvlist_t *retrynvl; | |
34dc7c2f | 2020 | |
428870ff BB |
2021 | VERIFY(nvlist_alloc(&genericnvl, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
2022 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2023 | VERIFY(nvlist_alloc(&retrynvl, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
34dc7c2f | 2024 | |
428870ff BB |
2025 | retry: |
2026 | pair = NULL; | |
2027 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { | |
2028 | const char *propname = nvpair_name(pair); | |
2029 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2030 | int err = 0; | |
2031 | ||
2032 | /* decode the property value */ | |
2033 | propval = pair; | |
2034 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2035 | nvlist_t *attrs; | |
2036 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2037 | if (nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2038 | &propval) != 0) | |
2039 | err = EINVAL; | |
9babb374 | 2040 | } |
34dc7c2f | 2041 | |
428870ff BB |
2042 | /* Validate value type */ |
2043 | if (err == 0 && prop == ZPROP_INVAL) { | |
2044 | if (zfs_prop_user(propname)) { | |
2045 | if (nvpair_type(propval) != DATA_TYPE_STRING) | |
2046 | err = EINVAL; | |
2047 | } else if (zfs_prop_userquota(propname)) { | |
2048 | if (nvpair_type(propval) != | |
2049 | DATA_TYPE_UINT64_ARRAY) | |
2050 | err = EINVAL; | |
2051 | } | |
2052 | } else if (err == 0) { | |
2053 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
2054 | if (zfs_prop_get_type(prop) != PROP_TYPE_STRING) | |
2055 | err = EINVAL; | |
2056 | } else if (nvpair_type(propval) == DATA_TYPE_UINT64) { | |
34dc7c2f BB |
2057 | const char *unused; |
2058 | ||
428870ff BB |
2059 | VERIFY(nvpair_value_uint64(propval, |
2060 | &intval) == 0); | |
34dc7c2f BB |
2061 | |
2062 | switch (zfs_prop_get_type(prop)) { | |
2063 | case PROP_TYPE_NUMBER: | |
2064 | break; | |
2065 | case PROP_TYPE_STRING: | |
428870ff BB |
2066 | err = EINVAL; |
2067 | break; | |
34dc7c2f BB |
2068 | case PROP_TYPE_INDEX: |
2069 | if (zfs_prop_index_to_string(prop, | |
428870ff BB |
2070 | intval, &unused) != 0) |
2071 | err = EINVAL; | |
34dc7c2f BB |
2072 | break; |
2073 | default: | |
2074 | cmn_err(CE_PANIC, | |
2075 | "unknown property type"); | |
34dc7c2f | 2076 | } |
34dc7c2f | 2077 | } else { |
428870ff | 2078 | err = EINVAL; |
34dc7c2f | 2079 | } |
34dc7c2f | 2080 | } |
428870ff BB |
2081 | |
2082 | /* Validate permissions */ | |
2083 | if (err == 0) | |
2084 | err = zfs_check_settable(dsname, pair, CRED()); | |
2085 | ||
2086 | if (err == 0) { | |
2087 | err = zfs_prop_set_special(dsname, source, pair); | |
2088 | if (err == -1) { | |
2089 | /* | |
2090 | * For better performance we build up a list of | |
2091 | * properties to set in a single transaction. | |
2092 | */ | |
2093 | err = nvlist_add_nvpair(genericnvl, pair); | |
2094 | } else if (err != 0 && nvl != retrynvl) { | |
2095 | /* | |
2096 | * This may be a spurious error caused by | |
2097 | * receiving quota and reservation out of order. | |
2098 | * Try again in a second pass. | |
2099 | */ | |
2100 | err = nvlist_add_nvpair(retrynvl, pair); | |
2101 | } | |
2102 | } | |
2103 | ||
2104 | if (err != 0) | |
2105 | VERIFY(nvlist_add_int32(errors, propname, err) == 0); | |
34dc7c2f BB |
2106 | } |
2107 | ||
428870ff BB |
2108 | if (nvl != retrynvl && !nvlist_empty(retrynvl)) { |
2109 | nvl = retrynvl; | |
2110 | goto retry; | |
2111 | } | |
2112 | ||
2113 | if (!nvlist_empty(genericnvl) && | |
2114 | dsl_props_set(dsname, source, genericnvl) != 0) { | |
2115 | /* | |
2116 | * If this fails, we still want to set as many properties as we | |
2117 | * can, so try setting them individually. | |
2118 | */ | |
2119 | pair = NULL; | |
2120 | while ((pair = nvlist_next_nvpair(genericnvl, pair)) != NULL) { | |
2121 | const char *propname = nvpair_name(pair); | |
2122 | int err = 0; | |
2123 | ||
2124 | propval = pair; | |
2125 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
2126 | nvlist_t *attrs; | |
2127 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
2128 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
2129 | &propval) == 0); | |
2130 | } | |
2131 | ||
2132 | if (nvpair_type(propval) == DATA_TYPE_STRING) { | |
2133 | VERIFY(nvpair_value_string(propval, | |
2134 | &strval) == 0); | |
2135 | err = dsl_prop_set(dsname, propname, source, 1, | |
2136 | strlen(strval) + 1, strval); | |
2137 | } else { | |
2138 | VERIFY(nvpair_value_uint64(propval, | |
2139 | &intval) == 0); | |
2140 | err = dsl_prop_set(dsname, propname, source, 8, | |
2141 | 1, &intval); | |
2142 | } | |
2143 | ||
2144 | if (err != 0) { | |
2145 | VERIFY(nvlist_add_int32(errors, propname, | |
2146 | err) == 0); | |
2147 | } | |
2148 | } | |
9babb374 | 2149 | } |
9babb374 | 2150 | nvlist_free(genericnvl); |
428870ff BB |
2151 | nvlist_free(retrynvl); |
2152 | ||
2153 | if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) { | |
2154 | nvlist_free(errors); | |
2155 | errors = NULL; | |
2156 | } else { | |
2157 | VERIFY(nvpair_value_int32(pair, &rv) == 0); | |
2158 | } | |
2159 | ||
2160 | if (errlist == NULL) | |
2161 | nvlist_free(errors); | |
2162 | else | |
2163 | *errlist = errors; | |
2164 | ||
2165 | return (rv); | |
9babb374 BB |
2166 | } |
2167 | ||
2168 | /* | |
2169 | * Check that all the properties are valid user properties. | |
2170 | */ | |
2171 | static int | |
2172 | zfs_check_userprops(char *fsname, nvlist_t *nvl) | |
2173 | { | |
428870ff | 2174 | nvpair_t *pair = NULL; |
9babb374 BB |
2175 | int error = 0; |
2176 | ||
428870ff BB |
2177 | while ((pair = nvlist_next_nvpair(nvl, pair)) != NULL) { |
2178 | const char *propname = nvpair_name(pair); | |
9babb374 BB |
2179 | char *valstr; |
2180 | ||
2181 | if (!zfs_prop_user(propname) || | |
428870ff | 2182 | nvpair_type(pair) != DATA_TYPE_STRING) |
9babb374 BB |
2183 | return (EINVAL); |
2184 | ||
2185 | if (error = zfs_secpolicy_write_perms(fsname, | |
2186 | ZFS_DELEG_PERM_USERPROP, CRED())) | |
2187 | return (error); | |
2188 | ||
2189 | if (strlen(propname) >= ZAP_MAXNAMELEN) | |
2190 | return (ENAMETOOLONG); | |
2191 | ||
428870ff | 2192 | VERIFY(nvpair_value_string(pair, &valstr) == 0); |
9babb374 BB |
2193 | if (strlen(valstr) >= ZAP_MAXVALUELEN) |
2194 | return (E2BIG); | |
2195 | } | |
34dc7c2f BB |
2196 | return (0); |
2197 | } | |
2198 | ||
428870ff BB |
2199 | static void |
2200 | props_skip(nvlist_t *props, nvlist_t *skipped, nvlist_t **newprops) | |
2201 | { | |
2202 | nvpair_t *pair; | |
2203 | ||
2204 | VERIFY(nvlist_alloc(newprops, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2205 | ||
2206 | pair = NULL; | |
2207 | while ((pair = nvlist_next_nvpair(props, pair)) != NULL) { | |
2208 | if (nvlist_exists(skipped, nvpair_name(pair))) | |
2209 | continue; | |
2210 | ||
2211 | VERIFY(nvlist_add_nvpair(*newprops, pair) == 0); | |
2212 | } | |
2213 | } | |
2214 | ||
2215 | static int | |
2216 | clear_received_props(objset_t *os, const char *fs, nvlist_t *props, | |
2217 | nvlist_t *skipped) | |
2218 | { | |
2219 | int err = 0; | |
2220 | nvlist_t *cleared_props = NULL; | |
2221 | props_skip(props, skipped, &cleared_props); | |
2222 | if (!nvlist_empty(cleared_props)) { | |
2223 | /* | |
2224 | * Acts on local properties until the dataset has received | |
2225 | * properties at least once on or after SPA_VERSION_RECVD_PROPS. | |
2226 | */ | |
2227 | zprop_source_t flags = (ZPROP_SRC_NONE | | |
2228 | (dsl_prop_get_hasrecvd(os) ? ZPROP_SRC_RECEIVED : 0)); | |
2229 | err = zfs_set_prop_nvlist(fs, flags, cleared_props, NULL); | |
2230 | } | |
2231 | nvlist_free(cleared_props); | |
2232 | return (err); | |
2233 | } | |
2234 | ||
34dc7c2f BB |
2235 | /* |
2236 | * inputs: | |
2237 | * zc_name name of filesystem | |
9babb374 | 2238 | * zc_value name of property to set |
34dc7c2f | 2239 | * zc_nvlist_src{_size} nvlist of properties to apply |
428870ff | 2240 | * zc_cookie received properties flag |
34dc7c2f | 2241 | * |
428870ff BB |
2242 | * outputs: |
2243 | * zc_nvlist_dst{_size} error for each unapplied received property | |
34dc7c2f BB |
2244 | */ |
2245 | static int | |
2246 | zfs_ioc_set_prop(zfs_cmd_t *zc) | |
2247 | { | |
2248 | nvlist_t *nvl; | |
428870ff BB |
2249 | boolean_t received = zc->zc_cookie; |
2250 | zprop_source_t source = (received ? ZPROP_SRC_RECEIVED : | |
2251 | ZPROP_SRC_LOCAL); | |
2252 | nvlist_t *errors = NULL; | |
34dc7c2f BB |
2253 | int error; |
2254 | ||
2255 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2256 | zc->zc_iflags, &nvl)) != 0) |
34dc7c2f BB |
2257 | return (error); |
2258 | ||
428870ff | 2259 | if (received) { |
b128c09f BB |
2260 | nvlist_t *origprops; |
2261 | objset_t *os; | |
2262 | ||
428870ff BB |
2263 | if (dmu_objset_hold(zc->zc_name, FTAG, &os) == 0) { |
2264 | if (dsl_prop_get_received(os, &origprops) == 0) { | |
2265 | (void) clear_received_props(os, | |
2266 | zc->zc_name, origprops, nvl); | |
b128c09f BB |
2267 | nvlist_free(origprops); |
2268 | } | |
b128c09f | 2269 | |
428870ff BB |
2270 | dsl_prop_set_hasrecvd(os); |
2271 | dmu_objset_rele(os, FTAG); | |
2272 | } | |
b128c09f BB |
2273 | } |
2274 | ||
428870ff | 2275 | error = zfs_set_prop_nvlist(zc->zc_name, source, nvl, &errors); |
34dc7c2f | 2276 | |
428870ff BB |
2277 | if (zc->zc_nvlist_dst != NULL && errors != NULL) { |
2278 | (void) put_nvlist(zc, errors); | |
2279 | } | |
2280 | ||
2281 | nvlist_free(errors); | |
34dc7c2f BB |
2282 | nvlist_free(nvl); |
2283 | return (error); | |
2284 | } | |
2285 | ||
2286 | /* | |
2287 | * inputs: | |
2288 | * zc_name name of filesystem | |
2289 | * zc_value name of property to inherit | |
428870ff | 2290 | * zc_cookie revert to received value if TRUE |
34dc7c2f BB |
2291 | * |
2292 | * outputs: none | |
2293 | */ | |
2294 | static int | |
2295 | zfs_ioc_inherit_prop(zfs_cmd_t *zc) | |
2296 | { | |
428870ff BB |
2297 | const char *propname = zc->zc_value; |
2298 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
2299 | boolean_t received = zc->zc_cookie; | |
2300 | zprop_source_t source = (received | |
2301 | ? ZPROP_SRC_NONE /* revert to received value, if any */ | |
2302 | : ZPROP_SRC_INHERITED); /* explicitly inherit */ | |
2303 | ||
2304 | if (received) { | |
2305 | nvlist_t *dummy; | |
2306 | nvpair_t *pair; | |
2307 | zprop_type_t type; | |
2308 | int err; | |
2309 | ||
2310 | /* | |
2311 | * zfs_prop_set_special() expects properties in the form of an | |
2312 | * nvpair with type info. | |
2313 | */ | |
2314 | if (prop == ZPROP_INVAL) { | |
2315 | if (!zfs_prop_user(propname)) | |
2316 | return (EINVAL); | |
2317 | ||
2318 | type = PROP_TYPE_STRING; | |
2319 | } else if (prop == ZFS_PROP_VOLSIZE || | |
2320 | prop == ZFS_PROP_VERSION) { | |
2321 | return (EINVAL); | |
2322 | } else { | |
2323 | type = zfs_prop_get_type(prop); | |
2324 | } | |
2325 | ||
2326 | VERIFY(nvlist_alloc(&dummy, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2327 | ||
2328 | switch (type) { | |
2329 | case PROP_TYPE_STRING: | |
2330 | VERIFY(0 == nvlist_add_string(dummy, propname, "")); | |
2331 | break; | |
2332 | case PROP_TYPE_NUMBER: | |
2333 | case PROP_TYPE_INDEX: | |
2334 | VERIFY(0 == nvlist_add_uint64(dummy, propname, 0)); | |
2335 | break; | |
2336 | default: | |
2337 | nvlist_free(dummy); | |
2338 | return (EINVAL); | |
2339 | } | |
2340 | ||
2341 | pair = nvlist_next_nvpair(dummy, NULL); | |
2342 | err = zfs_prop_set_special(zc->zc_name, source, pair); | |
2343 | nvlist_free(dummy); | |
2344 | if (err != -1) | |
2345 | return (err); /* special property already handled */ | |
2346 | } else { | |
2347 | /* | |
2348 | * Only check this in the non-received case. We want to allow | |
2349 | * 'inherit -S' to revert non-inheritable properties like quota | |
2350 | * and reservation to the received or default values even though | |
2351 | * they are not considered inheritable. | |
2352 | */ | |
2353 | if (prop != ZPROP_INVAL && !zfs_prop_inheritable(prop)) | |
2354 | return (EINVAL); | |
2355 | } | |
2356 | ||
34dc7c2f | 2357 | /* the property name has been validated by zfs_secpolicy_inherit() */ |
428870ff | 2358 | return (dsl_prop_set(zc->zc_name, zc->zc_value, source, 0, 0, NULL)); |
34dc7c2f BB |
2359 | } |
2360 | ||
2361 | static int | |
2362 | zfs_ioc_pool_set_props(zfs_cmd_t *zc) | |
2363 | { | |
2364 | nvlist_t *props; | |
2365 | spa_t *spa; | |
2366 | int error; | |
428870ff | 2367 | nvpair_t *pair; |
34dc7c2f | 2368 | |
428870ff BB |
2369 | if (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, |
2370 | zc->zc_iflags, &props)) | |
34dc7c2f BB |
2371 | return (error); |
2372 | ||
d164b209 BB |
2373 | /* |
2374 | * If the only property is the configfile, then just do a spa_lookup() | |
2375 | * to handle the faulted case. | |
2376 | */ | |
428870ff BB |
2377 | pair = nvlist_next_nvpair(props, NULL); |
2378 | if (pair != NULL && strcmp(nvpair_name(pair), | |
d164b209 | 2379 | zpool_prop_to_name(ZPOOL_PROP_CACHEFILE)) == 0 && |
428870ff | 2380 | nvlist_next_nvpair(props, pair) == NULL) { |
d164b209 BB |
2381 | mutex_enter(&spa_namespace_lock); |
2382 | if ((spa = spa_lookup(zc->zc_name)) != NULL) { | |
2383 | spa_configfile_set(spa, props, B_FALSE); | |
2384 | spa_config_sync(spa, B_FALSE, B_TRUE); | |
2385 | } | |
2386 | mutex_exit(&spa_namespace_lock); | |
428870ff BB |
2387 | if (spa != NULL) { |
2388 | nvlist_free(props); | |
d164b209 | 2389 | return (0); |
428870ff | 2390 | } |
d164b209 BB |
2391 | } |
2392 | ||
34dc7c2f BB |
2393 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2394 | nvlist_free(props); | |
2395 | return (error); | |
2396 | } | |
2397 | ||
2398 | error = spa_prop_set(spa, props); | |
2399 | ||
2400 | nvlist_free(props); | |
2401 | spa_close(spa, FTAG); | |
2402 | ||
2403 | return (error); | |
2404 | } | |
2405 | ||
2406 | static int | |
2407 | zfs_ioc_pool_get_props(zfs_cmd_t *zc) | |
2408 | { | |
2409 | spa_t *spa; | |
2410 | int error; | |
2411 | nvlist_t *nvp = NULL; | |
2412 | ||
d164b209 BB |
2413 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) { |
2414 | /* | |
2415 | * If the pool is faulted, there may be properties we can still | |
2416 | * get (such as altroot and cachefile), so attempt to get them | |
2417 | * anyway. | |
2418 | */ | |
2419 | mutex_enter(&spa_namespace_lock); | |
2420 | if ((spa = spa_lookup(zc->zc_name)) != NULL) | |
2421 | error = spa_prop_get(spa, &nvp); | |
2422 | mutex_exit(&spa_namespace_lock); | |
2423 | } else { | |
2424 | error = spa_prop_get(spa, &nvp); | |
2425 | spa_close(spa, FTAG); | |
2426 | } | |
34dc7c2f BB |
2427 | |
2428 | if (error == 0 && zc->zc_nvlist_dst != NULL) | |
2429 | error = put_nvlist(zc, nvp); | |
2430 | else | |
2431 | error = EFAULT; | |
2432 | ||
d164b209 | 2433 | nvlist_free(nvp); |
34dc7c2f BB |
2434 | return (error); |
2435 | } | |
2436 | ||
34dc7c2f BB |
2437 | /* |
2438 | * inputs: | |
2439 | * zc_name name of filesystem | |
2440 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
2441 | * zc_perm_action allow/unallow flag | |
2442 | * | |
2443 | * outputs: none | |
2444 | */ | |
2445 | static int | |
2446 | zfs_ioc_set_fsacl(zfs_cmd_t *zc) | |
2447 | { | |
2448 | int error; | |
2449 | nvlist_t *fsaclnv = NULL; | |
2450 | ||
2451 | if ((error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2452 | zc->zc_iflags, &fsaclnv)) != 0) |
34dc7c2f BB |
2453 | return (error); |
2454 | ||
2455 | /* | |
2456 | * Verify nvlist is constructed correctly | |
2457 | */ | |
2458 | if ((error = zfs_deleg_verify_nvlist(fsaclnv)) != 0) { | |
2459 | nvlist_free(fsaclnv); | |
2460 | return (EINVAL); | |
2461 | } | |
2462 | ||
2463 | /* | |
2464 | * If we don't have PRIV_SYS_MOUNT, then validate | |
2465 | * that user is allowed to hand out each permission in | |
2466 | * the nvlist(s) | |
2467 | */ | |
2468 | ||
2469 | error = secpolicy_zfs(CRED()); | |
2470 | if (error) { | |
2471 | if (zc->zc_perm_action == B_FALSE) { | |
2472 | error = dsl_deleg_can_allow(zc->zc_name, | |
2473 | fsaclnv, CRED()); | |
2474 | } else { | |
2475 | error = dsl_deleg_can_unallow(zc->zc_name, | |
2476 | fsaclnv, CRED()); | |
2477 | } | |
2478 | } | |
2479 | ||
2480 | if (error == 0) | |
2481 | error = dsl_deleg_set(zc->zc_name, fsaclnv, zc->zc_perm_action); | |
2482 | ||
2483 | nvlist_free(fsaclnv); | |
2484 | return (error); | |
2485 | } | |
2486 | ||
2487 | /* | |
2488 | * inputs: | |
2489 | * zc_name name of filesystem | |
2490 | * | |
2491 | * outputs: | |
2492 | * zc_nvlist_src{_size} nvlist of delegated permissions | |
2493 | */ | |
2494 | static int | |
2495 | zfs_ioc_get_fsacl(zfs_cmd_t *zc) | |
2496 | { | |
2497 | nvlist_t *nvp; | |
2498 | int error; | |
2499 | ||
2500 | if ((error = dsl_deleg_get(zc->zc_name, &nvp)) == 0) { | |
2501 | error = put_nvlist(zc, nvp); | |
2502 | nvlist_free(nvp); | |
2503 | } | |
2504 | ||
2505 | return (error); | |
2506 | } | |
2507 | ||
34dc7c2f BB |
2508 | /* |
2509 | * Search the vfs list for a specified resource. Returns a pointer to it | |
2510 | * or NULL if no suitable entry is found. The caller of this routine | |
2511 | * is responsible for releasing the returned vfs pointer. | |
2512 | */ | |
2513 | static vfs_t * | |
2514 | zfs_get_vfs(const char *resource) | |
2515 | { | |
2516 | struct vfs *vfsp; | |
2517 | struct vfs *vfs_found = NULL; | |
2518 | ||
2519 | vfs_list_read_lock(); | |
2520 | vfsp = rootvfs; | |
2521 | do { | |
2522 | if (strcmp(refstr_value(vfsp->vfs_resource), resource) == 0) { | |
2523 | VFS_HOLD(vfsp); | |
2524 | vfs_found = vfsp; | |
2525 | break; | |
2526 | } | |
2527 | vfsp = vfsp->vfs_next; | |
2528 | } while (vfsp != rootvfs); | |
2529 | vfs_list_unlock(); | |
2530 | return (vfs_found); | |
2531 | } | |
2532 | ||
2533 | /* ARGSUSED */ | |
2534 | static void | |
2535 | zfs_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx) | |
2536 | { | |
2537 | zfs_creat_t *zct = arg; | |
2538 | ||
2539 | zfs_create_fs(os, cr, zct->zct_zplprops, tx); | |
2540 | } | |
2541 | ||
2542 | #define ZFS_PROP_UNDEFINED ((uint64_t)-1) | |
2543 | ||
2544 | /* | |
2545 | * inputs: | |
b128c09f BB |
2546 | * createprops list of properties requested by creator |
2547 | * default_zplver zpl version to use if unspecified in createprops | |
2548 | * fuids_ok fuids allowed in this version of the spa? | |
2549 | * os parent objset pointer (NULL if root fs) | |
34dc7c2f BB |
2550 | * |
2551 | * outputs: | |
2552 | * zplprops values for the zplprops we attach to the master node object | |
b128c09f | 2553 | * is_ci true if requested file system will be purely case-insensitive |
34dc7c2f BB |
2554 | * |
2555 | * Determine the settings for utf8only, normalization and | |
2556 | * casesensitivity. Specific values may have been requested by the | |
2557 | * creator and/or we can inherit values from the parent dataset. If | |
2558 | * the file system is of too early a vintage, a creator can not | |
2559 | * request settings for these properties, even if the requested | |
2560 | * setting is the default value. We don't actually want to create dsl | |
2561 | * properties for these, so remove them from the source nvlist after | |
2562 | * processing. | |
2563 | */ | |
2564 | static int | |
9babb374 | 2565 | zfs_fill_zplprops_impl(objset_t *os, uint64_t zplver, |
428870ff BB |
2566 | boolean_t fuids_ok, boolean_t sa_ok, nvlist_t *createprops, |
2567 | nvlist_t *zplprops, boolean_t *is_ci) | |
34dc7c2f | 2568 | { |
34dc7c2f BB |
2569 | uint64_t sense = ZFS_PROP_UNDEFINED; |
2570 | uint64_t norm = ZFS_PROP_UNDEFINED; | |
2571 | uint64_t u8 = ZFS_PROP_UNDEFINED; | |
34dc7c2f BB |
2572 | |
2573 | ASSERT(zplprops != NULL); | |
2574 | ||
34dc7c2f BB |
2575 | /* |
2576 | * Pull out creator prop choices, if any. | |
2577 | */ | |
2578 | if (createprops) { | |
b128c09f BB |
2579 | (void) nvlist_lookup_uint64(createprops, |
2580 | zfs_prop_to_name(ZFS_PROP_VERSION), &zplver); | |
34dc7c2f BB |
2581 | (void) nvlist_lookup_uint64(createprops, |
2582 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), &norm); | |
2583 | (void) nvlist_remove_all(createprops, | |
2584 | zfs_prop_to_name(ZFS_PROP_NORMALIZE)); | |
2585 | (void) nvlist_lookup_uint64(createprops, | |
2586 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), &u8); | |
2587 | (void) nvlist_remove_all(createprops, | |
2588 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY)); | |
2589 | (void) nvlist_lookup_uint64(createprops, | |
2590 | zfs_prop_to_name(ZFS_PROP_CASE), &sense); | |
2591 | (void) nvlist_remove_all(createprops, | |
2592 | zfs_prop_to_name(ZFS_PROP_CASE)); | |
2593 | } | |
2594 | ||
2595 | /* | |
b128c09f BB |
2596 | * If the zpl version requested is whacky or the file system |
2597 | * or pool is version is too "young" to support normalization | |
2598 | * and the creator tried to set a value for one of the props, | |
2599 | * error out. | |
34dc7c2f | 2600 | */ |
b128c09f BB |
2601 | if ((zplver < ZPL_VERSION_INITIAL || zplver > ZPL_VERSION) || |
2602 | (zplver >= ZPL_VERSION_FUID && !fuids_ok) || | |
428870ff | 2603 | (zplver >= ZPL_VERSION_SA && !sa_ok) || |
b128c09f | 2604 | (zplver < ZPL_VERSION_NORMALIZATION && |
34dc7c2f | 2605 | (norm != ZFS_PROP_UNDEFINED || u8 != ZFS_PROP_UNDEFINED || |
b128c09f | 2606 | sense != ZFS_PROP_UNDEFINED))) |
34dc7c2f BB |
2607 | return (ENOTSUP); |
2608 | ||
2609 | /* | |
2610 | * Put the version in the zplprops | |
2611 | */ | |
2612 | VERIFY(nvlist_add_uint64(zplprops, | |
2613 | zfs_prop_to_name(ZFS_PROP_VERSION), zplver) == 0); | |
2614 | ||
34dc7c2f BB |
2615 | if (norm == ZFS_PROP_UNDEFINED) |
2616 | VERIFY(zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &norm) == 0); | |
2617 | VERIFY(nvlist_add_uint64(zplprops, | |
2618 | zfs_prop_to_name(ZFS_PROP_NORMALIZE), norm) == 0); | |
2619 | ||
2620 | /* | |
2621 | * If we're normalizing, names must always be valid UTF-8 strings. | |
2622 | */ | |
2623 | if (norm) | |
2624 | u8 = 1; | |
2625 | if (u8 == ZFS_PROP_UNDEFINED) | |
2626 | VERIFY(zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &u8) == 0); | |
2627 | VERIFY(nvlist_add_uint64(zplprops, | |
2628 | zfs_prop_to_name(ZFS_PROP_UTF8ONLY), u8) == 0); | |
2629 | ||
2630 | if (sense == ZFS_PROP_UNDEFINED) | |
2631 | VERIFY(zfs_get_zplprop(os, ZFS_PROP_CASE, &sense) == 0); | |
2632 | VERIFY(nvlist_add_uint64(zplprops, | |
2633 | zfs_prop_to_name(ZFS_PROP_CASE), sense) == 0); | |
2634 | ||
2635 | if (is_ci) | |
2636 | *is_ci = (sense == ZFS_CASE_INSENSITIVE); | |
2637 | ||
34dc7c2f BB |
2638 | return (0); |
2639 | } | |
2640 | ||
b128c09f BB |
2641 | static int |
2642 | zfs_fill_zplprops(const char *dataset, nvlist_t *createprops, | |
2643 | nvlist_t *zplprops, boolean_t *is_ci) | |
2644 | { | |
428870ff | 2645 | boolean_t fuids_ok, sa_ok; |
b128c09f BB |
2646 | uint64_t zplver = ZPL_VERSION; |
2647 | objset_t *os = NULL; | |
2648 | char parentname[MAXNAMELEN]; | |
2649 | char *cp; | |
428870ff BB |
2650 | spa_t *spa; |
2651 | uint64_t spa_vers; | |
b128c09f BB |
2652 | int error; |
2653 | ||
2654 | (void) strlcpy(parentname, dataset, sizeof (parentname)); | |
2655 | cp = strrchr(parentname, '/'); | |
2656 | ASSERT(cp != NULL); | |
2657 | cp[0] = '\0'; | |
2658 | ||
428870ff BB |
2659 | if ((error = spa_open(dataset, &spa, FTAG)) != 0) |
2660 | return (error); | |
2661 | ||
2662 | spa_vers = spa_version(spa); | |
2663 | spa_close(spa, FTAG); | |
2664 | ||
2665 | zplver = zfs_zpl_version_map(spa_vers); | |
2666 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
2667 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f BB |
2668 | |
2669 | /* | |
2670 | * Open parent object set so we can inherit zplprop values. | |
2671 | */ | |
428870ff | 2672 | if ((error = dmu_objset_hold(parentname, FTAG, &os)) != 0) |
b128c09f BB |
2673 | return (error); |
2674 | ||
428870ff | 2675 | error = zfs_fill_zplprops_impl(os, zplver, fuids_ok, sa_ok, createprops, |
b128c09f | 2676 | zplprops, is_ci); |
428870ff | 2677 | dmu_objset_rele(os, FTAG); |
b128c09f BB |
2678 | return (error); |
2679 | } | |
2680 | ||
2681 | static int | |
2682 | zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops, | |
2683 | nvlist_t *zplprops, boolean_t *is_ci) | |
2684 | { | |
428870ff BB |
2685 | boolean_t fuids_ok; |
2686 | boolean_t sa_ok; | |
b128c09f BB |
2687 | uint64_t zplver = ZPL_VERSION; |
2688 | int error; | |
2689 | ||
428870ff BB |
2690 | zplver = zfs_zpl_version_map(spa_vers); |
2691 | fuids_ok = (zplver >= ZPL_VERSION_FUID); | |
2692 | sa_ok = (zplver >= ZPL_VERSION_SA); | |
b128c09f | 2693 | |
428870ff BB |
2694 | error = zfs_fill_zplprops_impl(NULL, zplver, fuids_ok, sa_ok, |
2695 | createprops, zplprops, is_ci); | |
b128c09f BB |
2696 | return (error); |
2697 | } | |
2698 | ||
34dc7c2f BB |
2699 | /* |
2700 | * inputs: | |
2701 | * zc_objset_type type of objset to create (fs vs zvol) | |
2702 | * zc_name name of new objset | |
2703 | * zc_value name of snapshot to clone from (may be empty) | |
2704 | * zc_nvlist_src{_size} nvlist of properties to apply | |
2705 | * | |
2706 | * outputs: none | |
2707 | */ | |
2708 | static int | |
2709 | zfs_ioc_create(zfs_cmd_t *zc) | |
2710 | { | |
2711 | objset_t *clone; | |
2712 | int error = 0; | |
2713 | zfs_creat_t zct; | |
2714 | nvlist_t *nvprops = NULL; | |
2715 | void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx); | |
2716 | dmu_objset_type_t type = zc->zc_objset_type; | |
2717 | ||
2718 | switch (type) { | |
2719 | ||
2720 | case DMU_OST_ZFS: | |
2721 | cbfunc = zfs_create_cb; | |
2722 | break; | |
2723 | ||
2724 | case DMU_OST_ZVOL: | |
2725 | cbfunc = zvol_create_cb; | |
2726 | break; | |
2727 | ||
2728 | default: | |
2729 | cbfunc = NULL; | |
2730 | break; | |
2731 | } | |
2732 | if (strchr(zc->zc_name, '@') || | |
2733 | strchr(zc->zc_name, '%')) | |
2734 | return (EINVAL); | |
2735 | ||
2736 | if (zc->zc_nvlist_src != NULL && | |
2737 | (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2738 | zc->zc_iflags, &nvprops)) != 0) |
34dc7c2f BB |
2739 | return (error); |
2740 | ||
2741 | zct.zct_zplprops = NULL; | |
2742 | zct.zct_props = nvprops; | |
2743 | ||
2744 | if (zc->zc_value[0] != '\0') { | |
2745 | /* | |
2746 | * We're creating a clone of an existing snapshot. | |
2747 | */ | |
2748 | zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; | |
2749 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0) { | |
2750 | nvlist_free(nvprops); | |
2751 | return (EINVAL); | |
2752 | } | |
2753 | ||
428870ff | 2754 | error = dmu_objset_hold(zc->zc_value, FTAG, &clone); |
34dc7c2f BB |
2755 | if (error) { |
2756 | nvlist_free(nvprops); | |
2757 | return (error); | |
2758 | } | |
2759 | ||
428870ff BB |
2760 | error = dmu_objset_clone(zc->zc_name, dmu_objset_ds(clone), 0); |
2761 | dmu_objset_rele(clone, FTAG); | |
34dc7c2f | 2762 | if (error) { |
34dc7c2f BB |
2763 | nvlist_free(nvprops); |
2764 | return (error); | |
2765 | } | |
34dc7c2f BB |
2766 | } else { |
2767 | boolean_t is_insensitive = B_FALSE; | |
2768 | ||
2769 | if (cbfunc == NULL) { | |
2770 | nvlist_free(nvprops); | |
2771 | return (EINVAL); | |
2772 | } | |
2773 | ||
2774 | if (type == DMU_OST_ZVOL) { | |
2775 | uint64_t volsize, volblocksize; | |
2776 | ||
2777 | if (nvprops == NULL || | |
2778 | nvlist_lookup_uint64(nvprops, | |
2779 | zfs_prop_to_name(ZFS_PROP_VOLSIZE), | |
2780 | &volsize) != 0) { | |
2781 | nvlist_free(nvprops); | |
2782 | return (EINVAL); | |
2783 | } | |
2784 | ||
2785 | if ((error = nvlist_lookup_uint64(nvprops, | |
2786 | zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), | |
2787 | &volblocksize)) != 0 && error != ENOENT) { | |
2788 | nvlist_free(nvprops); | |
2789 | return (EINVAL); | |
2790 | } | |
2791 | ||
2792 | if (error != 0) | |
2793 | volblocksize = zfs_prop_default_numeric( | |
2794 | ZFS_PROP_VOLBLOCKSIZE); | |
2795 | ||
2796 | if ((error = zvol_check_volblocksize( | |
2797 | volblocksize)) != 0 || | |
2798 | (error = zvol_check_volsize(volsize, | |
2799 | volblocksize)) != 0) { | |
2800 | nvlist_free(nvprops); | |
2801 | return (error); | |
2802 | } | |
2803 | } else if (type == DMU_OST_ZFS) { | |
34dc7c2f BB |
2804 | int error; |
2805 | ||
34dc7c2f BB |
2806 | /* |
2807 | * We have to have normalization and | |
2808 | * case-folding flags correct when we do the | |
2809 | * file system creation, so go figure them out | |
2810 | * now. | |
2811 | */ | |
2812 | VERIFY(nvlist_alloc(&zct.zct_zplprops, | |
2813 | NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2814 | error = zfs_fill_zplprops(zc->zc_name, nvprops, | |
b128c09f | 2815 | zct.zct_zplprops, &is_insensitive); |
34dc7c2f BB |
2816 | if (error != 0) { |
2817 | nvlist_free(nvprops); | |
2818 | nvlist_free(zct.zct_zplprops); | |
2819 | return (error); | |
2820 | } | |
2821 | } | |
428870ff | 2822 | error = dmu_objset_create(zc->zc_name, type, |
34dc7c2f BB |
2823 | is_insensitive ? DS_FLAG_CI_DATASET : 0, cbfunc, &zct); |
2824 | nvlist_free(zct.zct_zplprops); | |
2825 | } | |
2826 | ||
2827 | /* | |
2828 | * It would be nice to do this atomically. | |
2829 | */ | |
2830 | if (error == 0) { | |
428870ff BB |
2831 | error = zfs_set_prop_nvlist(zc->zc_name, ZPROP_SRC_LOCAL, |
2832 | nvprops, NULL); | |
2833 | if (error != 0) | |
45d1cae3 | 2834 | (void) dmu_objset_destroy(zc->zc_name, B_FALSE); |
34dc7c2f BB |
2835 | } |
2836 | nvlist_free(nvprops); | |
2837 | return (error); | |
2838 | } | |
2839 | ||
2840 | /* | |
2841 | * inputs: | |
2842 | * zc_name name of filesystem | |
2843 | * zc_value short name of snapshot | |
2844 | * zc_cookie recursive flag | |
9babb374 | 2845 | * zc_nvlist_src[_size] property list |
34dc7c2f | 2846 | * |
428870ff BB |
2847 | * outputs: |
2848 | * zc_value short snapname (i.e. part after the '@') | |
34dc7c2f BB |
2849 | */ |
2850 | static int | |
2851 | zfs_ioc_snapshot(zfs_cmd_t *zc) | |
2852 | { | |
b128c09f BB |
2853 | nvlist_t *nvprops = NULL; |
2854 | int error; | |
2855 | boolean_t recursive = zc->zc_cookie; | |
2856 | ||
34dc7c2f BB |
2857 | if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0) |
2858 | return (EINVAL); | |
b128c09f BB |
2859 | |
2860 | if (zc->zc_nvlist_src != NULL && | |
2861 | (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 2862 | zc->zc_iflags, &nvprops)) != 0) |
b128c09f BB |
2863 | return (error); |
2864 | ||
9babb374 BB |
2865 | error = zfs_check_userprops(zc->zc_name, nvprops); |
2866 | if (error) | |
2867 | goto out; | |
b128c09f | 2868 | |
428870ff | 2869 | if (!nvlist_empty(nvprops) && |
9babb374 BB |
2870 | zfs_earlier_version(zc->zc_name, SPA_VERSION_SNAP_PROPS)) { |
2871 | error = ENOTSUP; | |
2872 | goto out; | |
b128c09f | 2873 | } |
9babb374 BB |
2874 | |
2875 | error = dmu_objset_snapshot(zc->zc_name, zc->zc_value, | |
2876 | nvprops, recursive); | |
2877 | ||
2878 | out: | |
b128c09f BB |
2879 | nvlist_free(nvprops); |
2880 | return (error); | |
34dc7c2f BB |
2881 | } |
2882 | ||
2883 | int | |
428870ff | 2884 | zfs_unmount_snap(const char *name, void *arg) |
34dc7c2f | 2885 | { |
34dc7c2f BB |
2886 | vfs_t *vfsp = NULL; |
2887 | ||
b128c09f BB |
2888 | if (arg) { |
2889 | char *snapname = arg; | |
428870ff BB |
2890 | char *fullname = kmem_asprintf("%s@%s", name, snapname); |
2891 | vfsp = zfs_get_vfs(fullname); | |
2892 | strfree(fullname); | |
34dc7c2f BB |
2893 | } else if (strchr(name, '@')) { |
2894 | vfsp = zfs_get_vfs(name); | |
2895 | } | |
2896 | ||
2897 | if (vfsp) { | |
2898 | /* | |
2899 | * Always force the unmount for snapshots. | |
2900 | */ | |
2901 | int flag = MS_FORCE; | |
2902 | int err; | |
2903 | ||
2904 | if ((err = vn_vfswlock(vfsp->vfs_vnodecovered)) != 0) { | |
2905 | VFS_RELE(vfsp); | |
2906 | return (err); | |
2907 | } | |
2908 | VFS_RELE(vfsp); | |
2909 | if ((err = dounmount(vfsp, flag, kcred)) != 0) | |
2910 | return (err); | |
2911 | } | |
2912 | return (0); | |
2913 | } | |
2914 | ||
2915 | /* | |
2916 | * inputs: | |
45d1cae3 BB |
2917 | * zc_name name of filesystem |
2918 | * zc_value short name of snapshot | |
2919 | * zc_defer_destroy mark for deferred destroy | |
34dc7c2f BB |
2920 | * |
2921 | * outputs: none | |
2922 | */ | |
2923 | static int | |
2924 | zfs_ioc_destroy_snaps(zfs_cmd_t *zc) | |
2925 | { | |
2926 | int err; | |
2927 | ||
2928 | if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0) | |
2929 | return (EINVAL); | |
2930 | err = dmu_objset_find(zc->zc_name, | |
2931 | zfs_unmount_snap, zc->zc_value, DS_FIND_CHILDREN); | |
2932 | if (err) | |
2933 | return (err); | |
45d1cae3 BB |
2934 | return (dmu_snapshots_destroy(zc->zc_name, zc->zc_value, |
2935 | zc->zc_defer_destroy)); | |
34dc7c2f BB |
2936 | } |
2937 | ||
2938 | /* | |
2939 | * inputs: | |
2940 | * zc_name name of dataset to destroy | |
2941 | * zc_objset_type type of objset | |
45d1cae3 | 2942 | * zc_defer_destroy mark for deferred destroy |
34dc7c2f BB |
2943 | * |
2944 | * outputs: none | |
2945 | */ | |
2946 | static int | |
2947 | zfs_ioc_destroy(zfs_cmd_t *zc) | |
2948 | { | |
428870ff | 2949 | int err; |
34dc7c2f | 2950 | if (strchr(zc->zc_name, '@') && zc->zc_objset_type == DMU_OST_ZFS) { |
428870ff | 2951 | err = zfs_unmount_snap(zc->zc_name, NULL); |
34dc7c2f BB |
2952 | if (err) |
2953 | return (err); | |
2954 | } | |
2955 | ||
428870ff BB |
2956 | err = dmu_objset_destroy(zc->zc_name, zc->zc_defer_destroy); |
2957 | if (zc->zc_objset_type == DMU_OST_ZVOL && err == 0) | |
2958 | (void) zvol_remove_minor(zc->zc_name); | |
2959 | return (err); | |
34dc7c2f BB |
2960 | } |
2961 | ||
2962 | /* | |
2963 | * inputs: | |
2964 | * zc_name name of dataset to rollback (to most recent snapshot) | |
2965 | * | |
2966 | * outputs: none | |
2967 | */ | |
2968 | static int | |
2969 | zfs_ioc_rollback(zfs_cmd_t *zc) | |
2970 | { | |
428870ff | 2971 | dsl_dataset_t *ds, *clone; |
34dc7c2f | 2972 | int error; |
428870ff BB |
2973 | zfsvfs_t *zfsvfs; |
2974 | char *clone_name; | |
2975 | ||
2976 | error = dsl_dataset_hold(zc->zc_name, FTAG, &ds); | |
2977 | if (error) | |
2978 | return (error); | |
2979 | ||
2980 | /* must not be a snapshot */ | |
2981 | if (dsl_dataset_is_snapshot(ds)) { | |
2982 | dsl_dataset_rele(ds, FTAG); | |
2983 | return (EINVAL); | |
2984 | } | |
2985 | ||
2986 | /* must have a most recent snapshot */ | |
2987 | if (ds->ds_phys->ds_prev_snap_txg < TXG_INITIAL) { | |
2988 | dsl_dataset_rele(ds, FTAG); | |
2989 | return (EINVAL); | |
2990 | } | |
34dc7c2f BB |
2991 | |
2992 | /* | |
428870ff | 2993 | * Create clone of most recent snapshot. |
34dc7c2f | 2994 | */ |
428870ff BB |
2995 | clone_name = kmem_asprintf("%s/%%rollback", zc->zc_name); |
2996 | error = dmu_objset_clone(clone_name, ds->ds_prev, DS_FLAG_INCONSISTENT); | |
34dc7c2f | 2997 | if (error) |
428870ff | 2998 | goto out; |
34dc7c2f | 2999 | |
428870ff BB |
3000 | error = dsl_dataset_own(clone_name, B_TRUE, FTAG, &clone); |
3001 | if (error) | |
3002 | goto out; | |
34dc7c2f | 3003 | |
428870ff BB |
3004 | /* |
3005 | * Do clone swap. | |
3006 | */ | |
3007 | if (getzfsvfs(zc->zc_name, &zfsvfs) == 0) { | |
3008 | error = zfs_suspend_fs(zfsvfs); | |
34dc7c2f BB |
3009 | if (error == 0) { |
3010 | int resume_err; | |
3011 | ||
428870ff BB |
3012 | if (dsl_dataset_tryown(ds, B_FALSE, FTAG)) { |
3013 | error = dsl_dataset_clone_swap(clone, ds, | |
3014 | B_TRUE); | |
3015 | dsl_dataset_disown(ds, FTAG); | |
3016 | ds = NULL; | |
3017 | } else { | |
3018 | error = EBUSY; | |
3019 | } | |
3020 | resume_err = zfs_resume_fs(zfsvfs, zc->zc_name); | |
34dc7c2f | 3021 | error = error ? error : resume_err; |
34dc7c2f BB |
3022 | } |
3023 | VFS_RELE(zfsvfs->z_vfs); | |
3024 | } else { | |
428870ff BB |
3025 | if (dsl_dataset_tryown(ds, B_FALSE, FTAG)) { |
3026 | error = dsl_dataset_clone_swap(clone, ds, B_TRUE); | |
3027 | dsl_dataset_disown(ds, FTAG); | |
3028 | ds = NULL; | |
3029 | } else { | |
3030 | error = EBUSY; | |
3031 | } | |
34dc7c2f | 3032 | } |
34dc7c2f | 3033 | |
428870ff BB |
3034 | /* |
3035 | * Destroy clone (which also closes it). | |
3036 | */ | |
3037 | (void) dsl_dataset_destroy(clone, FTAG, B_FALSE); | |
3038 | ||
3039 | out: | |
3040 | strfree(clone_name); | |
3041 | if (ds) | |
3042 | dsl_dataset_rele(ds, FTAG); | |
34dc7c2f BB |
3043 | return (error); |
3044 | } | |
3045 | ||
3046 | /* | |
3047 | * inputs: | |
3048 | * zc_name old name of dataset | |
3049 | * zc_value new name of dataset | |
3050 | * zc_cookie recursive flag (only valid for snapshots) | |
3051 | * | |
3052 | * outputs: none | |
3053 | */ | |
3054 | static int | |
3055 | zfs_ioc_rename(zfs_cmd_t *zc) | |
3056 | { | |
3057 | boolean_t recursive = zc->zc_cookie & 1; | |
3058 | ||
3059 | zc->zc_value[sizeof (zc->zc_value) - 1] = '\0'; | |
3060 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
3061 | strchr(zc->zc_value, '%')) | |
3062 | return (EINVAL); | |
3063 | ||
3064 | /* | |
3065 | * Unmount snapshot unless we're doing a recursive rename, | |
3066 | * in which case the dataset code figures out which snapshots | |
3067 | * to unmount. | |
3068 | */ | |
3069 | if (!recursive && strchr(zc->zc_name, '@') != NULL && | |
3070 | zc->zc_objset_type == DMU_OST_ZFS) { | |
3071 | int err = zfs_unmount_snap(zc->zc_name, NULL); | |
3072 | if (err) | |
3073 | return (err); | |
3074 | } | |
428870ff BB |
3075 | if (zc->zc_objset_type == DMU_OST_ZVOL) |
3076 | (void) zvol_remove_minor(zc->zc_name); | |
34dc7c2f BB |
3077 | return (dmu_objset_rename(zc->zc_name, zc->zc_value, recursive)); |
3078 | } | |
3079 | ||
428870ff BB |
3080 | static int |
3081 | zfs_check_settable(const char *dsname, nvpair_t *pair, cred_t *cr) | |
3082 | { | |
3083 | const char *propname = nvpair_name(pair); | |
3084 | boolean_t issnap = (strchr(dsname, '@') != NULL); | |
3085 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
3086 | uint64_t intval; | |
3087 | int err; | |
3088 | ||
3089 | if (prop == ZPROP_INVAL) { | |
3090 | if (zfs_prop_user(propname)) { | |
3091 | if (err = zfs_secpolicy_write_perms(dsname, | |
3092 | ZFS_DELEG_PERM_USERPROP, cr)) | |
3093 | return (err); | |
3094 | return (0); | |
3095 | } | |
3096 | ||
3097 | if (!issnap && zfs_prop_userquota(propname)) { | |
3098 | const char *perm = NULL; | |
3099 | const char *uq_prefix = | |
3100 | zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA]; | |
3101 | const char *gq_prefix = | |
3102 | zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA]; | |
3103 | ||
3104 | if (strncmp(propname, uq_prefix, | |
3105 | strlen(uq_prefix)) == 0) { | |
3106 | perm = ZFS_DELEG_PERM_USERQUOTA; | |
3107 | } else if (strncmp(propname, gq_prefix, | |
3108 | strlen(gq_prefix)) == 0) { | |
3109 | perm = ZFS_DELEG_PERM_GROUPQUOTA; | |
3110 | } else { | |
3111 | /* USERUSED and GROUPUSED are read-only */ | |
3112 | return (EINVAL); | |
3113 | } | |
3114 | ||
3115 | if (err = zfs_secpolicy_write_perms(dsname, perm, cr)) | |
3116 | return (err); | |
3117 | return (0); | |
3118 | } | |
3119 | ||
3120 | return (EINVAL); | |
3121 | } | |
3122 | ||
3123 | if (issnap) | |
3124 | return (EINVAL); | |
3125 | ||
3126 | if (nvpair_type(pair) == DATA_TYPE_NVLIST) { | |
3127 | /* | |
3128 | * dsl_prop_get_all_impl() returns properties in this | |
3129 | * format. | |
3130 | */ | |
3131 | nvlist_t *attrs; | |
3132 | VERIFY(nvpair_value_nvlist(pair, &attrs) == 0); | |
3133 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3134 | &pair) == 0); | |
3135 | } | |
3136 | ||
3137 | /* | |
3138 | * Check that this value is valid for this pool version | |
3139 | */ | |
3140 | switch (prop) { | |
3141 | case ZFS_PROP_COMPRESSION: | |
3142 | /* | |
3143 | * If the user specified gzip compression, make sure | |
3144 | * the SPA supports it. We ignore any errors here since | |
3145 | * we'll catch them later. | |
3146 | */ | |
3147 | if (nvpair_type(pair) == DATA_TYPE_UINT64 && | |
3148 | nvpair_value_uint64(pair, &intval) == 0) { | |
3149 | if (intval >= ZIO_COMPRESS_GZIP_1 && | |
3150 | intval <= ZIO_COMPRESS_GZIP_9 && | |
3151 | zfs_earlier_version(dsname, | |
3152 | SPA_VERSION_GZIP_COMPRESSION)) { | |
3153 | return (ENOTSUP); | |
3154 | } | |
3155 | ||
3156 | if (intval == ZIO_COMPRESS_ZLE && | |
3157 | zfs_earlier_version(dsname, | |
3158 | SPA_VERSION_ZLE_COMPRESSION)) | |
3159 | return (ENOTSUP); | |
3160 | ||
3161 | /* | |
3162 | * If this is a bootable dataset then | |
3163 | * verify that the compression algorithm | |
3164 | * is supported for booting. We must return | |
3165 | * something other than ENOTSUP since it | |
3166 | * implies a downrev pool version. | |
3167 | */ | |
3168 | if (zfs_is_bootfs(dsname) && | |
3169 | !BOOTFS_COMPRESS_VALID(intval)) { | |
3170 | return (ERANGE); | |
3171 | } | |
3172 | } | |
3173 | break; | |
3174 | ||
3175 | case ZFS_PROP_COPIES: | |
3176 | if (zfs_earlier_version(dsname, SPA_VERSION_DITTO_BLOCKS)) | |
3177 | return (ENOTSUP); | |
3178 | break; | |
3179 | ||
3180 | case ZFS_PROP_DEDUP: | |
3181 | if (zfs_earlier_version(dsname, SPA_VERSION_DEDUP)) | |
3182 | return (ENOTSUP); | |
3183 | break; | |
3184 | ||
3185 | case ZFS_PROP_SHARESMB: | |
3186 | if (zpl_earlier_version(dsname, ZPL_VERSION_FUID)) | |
3187 | return (ENOTSUP); | |
3188 | break; | |
3189 | ||
3190 | case ZFS_PROP_ACLINHERIT: | |
3191 | if (nvpair_type(pair) == DATA_TYPE_UINT64 && | |
3192 | nvpair_value_uint64(pair, &intval) == 0) { | |
3193 | if (intval == ZFS_ACL_PASSTHROUGH_X && | |
3194 | zfs_earlier_version(dsname, | |
3195 | SPA_VERSION_PASSTHROUGH_X)) | |
3196 | return (ENOTSUP); | |
3197 | } | |
3198 | break; | |
3199 | } | |
3200 | ||
3201 | return (zfs_secpolicy_setprop(dsname, prop, pair, CRED())); | |
3202 | } | |
3203 | ||
3204 | /* | |
3205 | * Removes properties from the given props list that fail permission checks | |
3206 | * needed to clear them and to restore them in case of a receive error. For each | |
3207 | * property, make sure we have both set and inherit permissions. | |
3208 | * | |
3209 | * Returns the first error encountered if any permission checks fail. If the | |
3210 | * caller provides a non-NULL errlist, it also gives the complete list of names | |
3211 | * of all the properties that failed a permission check along with the | |
3212 | * corresponding error numbers. The caller is responsible for freeing the | |
3213 | * returned errlist. | |
3214 | * | |
3215 | * If every property checks out successfully, zero is returned and the list | |
3216 | * pointed at by errlist is NULL. | |
3217 | */ | |
3218 | static int | |
3219 | zfs_check_clearable(char *dataset, nvlist_t *props, nvlist_t **errlist) | |
b128c09f BB |
3220 | { |
3221 | zfs_cmd_t *zc; | |
428870ff BB |
3222 | nvpair_t *pair, *next_pair; |
3223 | nvlist_t *errors; | |
3224 | int err, rv = 0; | |
b128c09f BB |
3225 | |
3226 | if (props == NULL) | |
428870ff BB |
3227 | return (0); |
3228 | ||
3229 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3230 | ||
b128c09f BB |
3231 | zc = kmem_alloc(sizeof (zfs_cmd_t), KM_SLEEP); |
3232 | (void) strcpy(zc->zc_name, dataset); | |
428870ff BB |
3233 | pair = nvlist_next_nvpair(props, NULL); |
3234 | while (pair != NULL) { | |
3235 | next_pair = nvlist_next_nvpair(props, pair); | |
3236 | ||
3237 | (void) strcpy(zc->zc_value, nvpair_name(pair)); | |
3238 | if ((err = zfs_check_settable(dataset, pair, CRED())) != 0 || | |
3239 | (err = zfs_secpolicy_inherit(zc, CRED())) != 0) { | |
3240 | VERIFY(nvlist_remove_nvpair(props, pair) == 0); | |
3241 | VERIFY(nvlist_add_int32(errors, | |
3242 | zc->zc_value, err) == 0); | |
3243 | } | |
3244 | pair = next_pair; | |
b128c09f BB |
3245 | } |
3246 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
428870ff BB |
3247 | |
3248 | if ((pair = nvlist_next_nvpair(errors, NULL)) == NULL) { | |
3249 | nvlist_free(errors); | |
3250 | errors = NULL; | |
3251 | } else { | |
3252 | VERIFY(nvpair_value_int32(pair, &rv) == 0); | |
3253 | } | |
3254 | ||
3255 | if (errlist == NULL) | |
3256 | nvlist_free(errors); | |
3257 | else | |
3258 | *errlist = errors; | |
3259 | ||
3260 | return (rv); | |
3261 | } | |
3262 | ||
3263 | static boolean_t | |
3264 | propval_equals(nvpair_t *p1, nvpair_t *p2) | |
3265 | { | |
3266 | if (nvpair_type(p1) == DATA_TYPE_NVLIST) { | |
3267 | /* dsl_prop_get_all_impl() format */ | |
3268 | nvlist_t *attrs; | |
3269 | VERIFY(nvpair_value_nvlist(p1, &attrs) == 0); | |
3270 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3271 | &p1) == 0); | |
3272 | } | |
3273 | ||
3274 | if (nvpair_type(p2) == DATA_TYPE_NVLIST) { | |
3275 | nvlist_t *attrs; | |
3276 | VERIFY(nvpair_value_nvlist(p2, &attrs) == 0); | |
3277 | VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE, | |
3278 | &p2) == 0); | |
3279 | } | |
3280 | ||
3281 | if (nvpair_type(p1) != nvpair_type(p2)) | |
3282 | return (B_FALSE); | |
3283 | ||
3284 | if (nvpair_type(p1) == DATA_TYPE_STRING) { | |
3285 | char *valstr1, *valstr2; | |
3286 | ||
3287 | VERIFY(nvpair_value_string(p1, (char **)&valstr1) == 0); | |
3288 | VERIFY(nvpair_value_string(p2, (char **)&valstr2) == 0); | |
3289 | return (strcmp(valstr1, valstr2) == 0); | |
3290 | } else { | |
3291 | uint64_t intval1, intval2; | |
3292 | ||
3293 | VERIFY(nvpair_value_uint64(p1, &intval1) == 0); | |
3294 | VERIFY(nvpair_value_uint64(p2, &intval2) == 0); | |
3295 | return (intval1 == intval2); | |
3296 | } | |
b128c09f BB |
3297 | } |
3298 | ||
428870ff BB |
3299 | /* |
3300 | * Remove properties from props if they are not going to change (as determined | |
3301 | * by comparison with origprops). Remove them from origprops as well, since we | |
3302 | * do not need to clear or restore properties that won't change. | |
3303 | */ | |
3304 | static void | |
3305 | props_reduce(nvlist_t *props, nvlist_t *origprops) | |
3306 | { | |
3307 | nvpair_t *pair, *next_pair; | |
3308 | ||
3309 | if (origprops == NULL) | |
3310 | return; /* all props need to be received */ | |
3311 | ||
3312 | pair = nvlist_next_nvpair(props, NULL); | |
3313 | while (pair != NULL) { | |
3314 | const char *propname = nvpair_name(pair); | |
3315 | nvpair_t *match; | |
3316 | ||
3317 | next_pair = nvlist_next_nvpair(props, pair); | |
3318 | ||
3319 | if ((nvlist_lookup_nvpair(origprops, propname, | |
3320 | &match) != 0) || !propval_equals(pair, match)) | |
3321 | goto next; /* need to set received value */ | |
3322 | ||
3323 | /* don't clear the existing received value */ | |
3324 | (void) nvlist_remove_nvpair(origprops, match); | |
3325 | /* don't bother receiving the property */ | |
3326 | (void) nvlist_remove_nvpair(props, pair); | |
3327 | next: | |
3328 | pair = next_pair; | |
3329 | } | |
3330 | } | |
3331 | ||
3332 | #ifdef DEBUG | |
3333 | static boolean_t zfs_ioc_recv_inject_err; | |
3334 | #endif | |
3335 | ||
34dc7c2f BB |
3336 | /* |
3337 | * inputs: | |
3338 | * zc_name name of containing filesystem | |
3339 | * zc_nvlist_src{_size} nvlist of properties to apply | |
3340 | * zc_value name of snapshot to create | |
3341 | * zc_string name of clone origin (if DRR_FLAG_CLONE) | |
3342 | * zc_cookie file descriptor to recv from | |
3343 | * zc_begin_record the BEGIN record of the stream (not byteswapped) | |
3344 | * zc_guid force flag | |
3345 | * | |
3346 | * outputs: | |
3347 | * zc_cookie number of bytes read | |
428870ff BB |
3348 | * zc_nvlist_dst{_size} error for each unapplied received property |
3349 | * zc_obj zprop_errflags_t | |
34dc7c2f BB |
3350 | */ |
3351 | static int | |
3352 | zfs_ioc_recv(zfs_cmd_t *zc) | |
3353 | { | |
3354 | file_t *fp; | |
3355 | objset_t *os; | |
3356 | dmu_recv_cookie_t drc; | |
34dc7c2f | 3357 | boolean_t force = (boolean_t)zc->zc_guid; |
428870ff BB |
3358 | int fd; |
3359 | int error = 0; | |
3360 | int props_error = 0; | |
3361 | nvlist_t *errors; | |
34dc7c2f | 3362 | offset_t off; |
428870ff BB |
3363 | nvlist_t *props = NULL; /* sent properties */ |
3364 | nvlist_t *origprops = NULL; /* existing properties */ | |
34dc7c2f BB |
3365 | objset_t *origin = NULL; |
3366 | char *tosnap; | |
3367 | char tofs[ZFS_MAXNAMELEN]; | |
428870ff | 3368 | boolean_t first_recvd_props = B_FALSE; |
34dc7c2f BB |
3369 | |
3370 | if (dataset_namecheck(zc->zc_value, NULL, NULL) != 0 || | |
3371 | strchr(zc->zc_value, '@') == NULL || | |
3372 | strchr(zc->zc_value, '%')) | |
3373 | return (EINVAL); | |
3374 | ||
3375 | (void) strcpy(tofs, zc->zc_value); | |
3376 | tosnap = strchr(tofs, '@'); | |
428870ff | 3377 | *tosnap++ = '\0'; |
34dc7c2f BB |
3378 | |
3379 | if (zc->zc_nvlist_src != NULL && | |
3380 | (error = get_nvlist(zc->zc_nvlist_src, zc->zc_nvlist_src_size, | |
9babb374 | 3381 | zc->zc_iflags, &props)) != 0) |
34dc7c2f BB |
3382 | return (error); |
3383 | ||
3384 | fd = zc->zc_cookie; | |
3385 | fp = getf(fd); | |
3386 | if (fp == NULL) { | |
3387 | nvlist_free(props); | |
3388 | return (EBADF); | |
3389 | } | |
3390 | ||
428870ff BB |
3391 | VERIFY(nvlist_alloc(&errors, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
3392 | ||
3393 | if (props && dmu_objset_hold(tofs, FTAG, &os) == 0) { | |
3394 | if ((spa_version(os->os_spa) >= SPA_VERSION_RECVD_PROPS) && | |
3395 | !dsl_prop_get_hasrecvd(os)) { | |
3396 | first_recvd_props = B_TRUE; | |
3397 | } | |
3398 | ||
b128c09f | 3399 | /* |
428870ff BB |
3400 | * If new received properties are supplied, they are to |
3401 | * completely replace the existing received properties, so stash | |
3402 | * away the existing ones. | |
b128c09f | 3403 | */ |
428870ff BB |
3404 | if (dsl_prop_get_received(os, &origprops) == 0) { |
3405 | nvlist_t *errlist = NULL; | |
3406 | /* | |
3407 | * Don't bother writing a property if its value won't | |
3408 | * change (and avoid the unnecessary security checks). | |
3409 | * | |
3410 | * The first receive after SPA_VERSION_RECVD_PROPS is a | |
3411 | * special case where we blow away all local properties | |
3412 | * regardless. | |
3413 | */ | |
3414 | if (!first_recvd_props) | |
3415 | props_reduce(props, origprops); | |
3416 | if (zfs_check_clearable(tofs, origprops, | |
3417 | &errlist) != 0) | |
3418 | (void) nvlist_merge(errors, errlist, 0); | |
3419 | nvlist_free(errlist); | |
3420 | } | |
b128c09f | 3421 | |
428870ff | 3422 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
3423 | } |
3424 | ||
3425 | if (zc->zc_string[0]) { | |
428870ff | 3426 | error = dmu_objset_hold(zc->zc_string, FTAG, &origin); |
b128c09f BB |
3427 | if (error) |
3428 | goto out; | |
34dc7c2f BB |
3429 | } |
3430 | ||
428870ff BB |
3431 | error = dmu_recv_begin(tofs, tosnap, zc->zc_top_ds, |
3432 | &zc->zc_begin_record, force, origin, &drc); | |
34dc7c2f | 3433 | if (origin) |
428870ff | 3434 | dmu_objset_rele(origin, FTAG); |
b128c09f BB |
3435 | if (error) |
3436 | goto out; | |
34dc7c2f BB |
3437 | |
3438 | /* | |
428870ff BB |
3439 | * Set properties before we receive the stream so that they are applied |
3440 | * to the new data. Note that we must call dmu_recv_stream() if | |
3441 | * dmu_recv_begin() succeeds. | |
34dc7c2f BB |
3442 | */ |
3443 | if (props) { | |
428870ff BB |
3444 | nvlist_t *errlist; |
3445 | ||
3446 | if (dmu_objset_from_ds(drc.drc_logical_ds, &os) == 0) { | |
3447 | if (drc.drc_newfs) { | |
3448 | if (spa_version(os->os_spa) >= | |
3449 | SPA_VERSION_RECVD_PROPS) | |
3450 | first_recvd_props = B_TRUE; | |
3451 | } else if (origprops != NULL) { | |
3452 | if (clear_received_props(os, tofs, origprops, | |
3453 | first_recvd_props ? NULL : props) != 0) | |
3454 | zc->zc_obj |= ZPROP_ERR_NOCLEAR; | |
3455 | } else { | |
3456 | zc->zc_obj |= ZPROP_ERR_NOCLEAR; | |
3457 | } | |
3458 | dsl_prop_set_hasrecvd(os); | |
3459 | } else if (!drc.drc_newfs) { | |
3460 | zc->zc_obj |= ZPROP_ERR_NOCLEAR; | |
3461 | } | |
3462 | ||
3463 | (void) zfs_set_prop_nvlist(tofs, ZPROP_SRC_RECEIVED, | |
3464 | props, &errlist); | |
3465 | (void) nvlist_merge(errors, errlist, 0); | |
3466 | nvlist_free(errlist); | |
3467 | } | |
3468 | ||
3469 | if (fit_error_list(zc, &errors) != 0 || put_nvlist(zc, errors) != 0) { | |
b128c09f | 3470 | /* |
428870ff BB |
3471 | * Caller made zc->zc_nvlist_dst less than the minimum expected |
3472 | * size or supplied an invalid address. | |
b128c09f | 3473 | */ |
428870ff | 3474 | props_error = EINVAL; |
34dc7c2f BB |
3475 | } |
3476 | ||
34dc7c2f BB |
3477 | off = fp->f_offset; |
3478 | error = dmu_recv_stream(&drc, fp->f_vnode, &off); | |
3479 | ||
45d1cae3 BB |
3480 | if (error == 0) { |
3481 | zfsvfs_t *zfsvfs = NULL; | |
b128c09f | 3482 | |
45d1cae3 BB |
3483 | if (getzfsvfs(tofs, &zfsvfs) == 0) { |
3484 | /* online recv */ | |
3485 | int end_err; | |
b128c09f | 3486 | |
428870ff | 3487 | error = zfs_suspend_fs(zfsvfs); |
45d1cae3 BB |
3488 | /* |
3489 | * If the suspend fails, then the recv_end will | |
3490 | * likely also fail, and clean up after itself. | |
3491 | */ | |
3492 | end_err = dmu_recv_end(&drc); | |
428870ff BB |
3493 | if (error == 0) |
3494 | error = zfs_resume_fs(zfsvfs, tofs); | |
45d1cae3 BB |
3495 | error = error ? error : end_err; |
3496 | VFS_RELE(zfsvfs->z_vfs); | |
b128c09f | 3497 | } else { |
45d1cae3 | 3498 | error = dmu_recv_end(&drc); |
34dc7c2f | 3499 | } |
34dc7c2f BB |
3500 | } |
3501 | ||
3502 | zc->zc_cookie = off - fp->f_offset; | |
3503 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
3504 | fp->f_offset = off; | |
3505 | ||
428870ff BB |
3506 | #ifdef DEBUG |
3507 | if (zfs_ioc_recv_inject_err) { | |
3508 | zfs_ioc_recv_inject_err = B_FALSE; | |
3509 | error = 1; | |
3510 | } | |
3511 | #endif | |
b128c09f BB |
3512 | /* |
3513 | * On error, restore the original props. | |
3514 | */ | |
3515 | if (error && props) { | |
428870ff BB |
3516 | if (dmu_objset_hold(tofs, FTAG, &os) == 0) { |
3517 | if (clear_received_props(os, tofs, props, NULL) != 0) { | |
3518 | /* | |
3519 | * We failed to clear the received properties. | |
3520 | * Since we may have left a $recvd value on the | |
3521 | * system, we can't clear the $hasrecvd flag. | |
3522 | */ | |
3523 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
3524 | } else if (first_recvd_props) { | |
3525 | dsl_prop_unset_hasrecvd(os); | |
3526 | } | |
3527 | dmu_objset_rele(os, FTAG); | |
3528 | } else if (!drc.drc_newfs) { | |
3529 | /* We failed to clear the received properties. */ | |
3530 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
3531 | } | |
3532 | ||
3533 | if (origprops == NULL && !drc.drc_newfs) { | |
3534 | /* We failed to stash the original properties. */ | |
3535 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
3536 | } | |
3537 | ||
3538 | /* | |
3539 | * dsl_props_set() will not convert RECEIVED to LOCAL on or | |
3540 | * after SPA_VERSION_RECVD_PROPS, so we need to specify LOCAL | |
3541 | * explictly if we're restoring local properties cleared in the | |
3542 | * first new-style receive. | |
3543 | */ | |
3544 | if (origprops != NULL && | |
3545 | zfs_set_prop_nvlist(tofs, (first_recvd_props ? | |
3546 | ZPROP_SRC_LOCAL : ZPROP_SRC_RECEIVED), | |
3547 | origprops, NULL) != 0) { | |
3548 | /* | |
3549 | * We stashed the original properties but failed to | |
3550 | * restore them. | |
3551 | */ | |
3552 | zc->zc_obj |= ZPROP_ERR_NORESTORE; | |
3553 | } | |
b128c09f BB |
3554 | } |
3555 | out: | |
b128c09f BB |
3556 | nvlist_free(props); |
3557 | nvlist_free(origprops); | |
428870ff | 3558 | nvlist_free(errors); |
34dc7c2f | 3559 | releasef(fd); |
428870ff BB |
3560 | |
3561 | if (error == 0) | |
3562 | error = props_error; | |
3563 | ||
34dc7c2f BB |
3564 | return (error); |
3565 | } | |
3566 | ||
3567 | /* | |
3568 | * inputs: | |
3569 | * zc_name name of snapshot to send | |
3570 | * zc_value short name of incremental fromsnap (may be empty) | |
3571 | * zc_cookie file descriptor to send stream to | |
3572 | * zc_obj fromorigin flag (mutually exclusive with zc_value) | |
3573 | * | |
3574 | * outputs: none | |
3575 | */ | |
3576 | static int | |
3577 | zfs_ioc_send(zfs_cmd_t *zc) | |
3578 | { | |
3579 | objset_t *fromsnap = NULL; | |
3580 | objset_t *tosnap; | |
3581 | file_t *fp; | |
3582 | int error; | |
3583 | offset_t off; | |
3584 | ||
428870ff | 3585 | error = dmu_objset_hold(zc->zc_name, FTAG, &tosnap); |
34dc7c2f BB |
3586 | if (error) |
3587 | return (error); | |
3588 | ||
3589 | if (zc->zc_value[0] != '\0') { | |
b128c09f | 3590 | char *buf; |
34dc7c2f BB |
3591 | char *cp; |
3592 | ||
b128c09f BB |
3593 | buf = kmem_alloc(MAXPATHLEN, KM_SLEEP); |
3594 | (void) strncpy(buf, zc->zc_name, MAXPATHLEN); | |
34dc7c2f BB |
3595 | cp = strchr(buf, '@'); |
3596 | if (cp) | |
3597 | *(cp+1) = 0; | |
b128c09f | 3598 | (void) strncat(buf, zc->zc_value, MAXPATHLEN); |
428870ff | 3599 | error = dmu_objset_hold(buf, FTAG, &fromsnap); |
b128c09f | 3600 | kmem_free(buf, MAXPATHLEN); |
34dc7c2f | 3601 | if (error) { |
428870ff | 3602 | dmu_objset_rele(tosnap, FTAG); |
34dc7c2f BB |
3603 | return (error); |
3604 | } | |
3605 | } | |
3606 | ||
3607 | fp = getf(zc->zc_cookie); | |
3608 | if (fp == NULL) { | |
428870ff | 3609 | dmu_objset_rele(tosnap, FTAG); |
34dc7c2f | 3610 | if (fromsnap) |
428870ff | 3611 | dmu_objset_rele(fromsnap, FTAG); |
34dc7c2f BB |
3612 | return (EBADF); |
3613 | } | |
3614 | ||
3615 | off = fp->f_offset; | |
3616 | error = dmu_sendbackup(tosnap, fromsnap, zc->zc_obj, fp->f_vnode, &off); | |
3617 | ||
3618 | if (VOP_SEEK(fp->f_vnode, fp->f_offset, &off, NULL) == 0) | |
3619 | fp->f_offset = off; | |
3620 | releasef(zc->zc_cookie); | |
3621 | if (fromsnap) | |
428870ff BB |
3622 | dmu_objset_rele(fromsnap, FTAG); |
3623 | dmu_objset_rele(tosnap, FTAG); | |
34dc7c2f BB |
3624 | return (error); |
3625 | } | |
3626 | ||
3627 | static int | |
3628 | zfs_ioc_inject_fault(zfs_cmd_t *zc) | |
3629 | { | |
3630 | int id, error; | |
3631 | ||
3632 | error = zio_inject_fault(zc->zc_name, (int)zc->zc_guid, &id, | |
3633 | &zc->zc_inject_record); | |
3634 | ||
3635 | if (error == 0) | |
3636 | zc->zc_guid = (uint64_t)id; | |
3637 | ||
3638 | return (error); | |
3639 | } | |
3640 | ||
3641 | static int | |
3642 | zfs_ioc_clear_fault(zfs_cmd_t *zc) | |
3643 | { | |
3644 | return (zio_clear_fault((int)zc->zc_guid)); | |
3645 | } | |
3646 | ||
3647 | static int | |
3648 | zfs_ioc_inject_list_next(zfs_cmd_t *zc) | |
3649 | { | |
3650 | int id = (int)zc->zc_guid; | |
3651 | int error; | |
3652 | ||
3653 | error = zio_inject_list_next(&id, zc->zc_name, sizeof (zc->zc_name), | |
3654 | &zc->zc_inject_record); | |
3655 | ||
3656 | zc->zc_guid = id; | |
3657 | ||
3658 | return (error); | |
3659 | } | |
3660 | ||
3661 | static int | |
3662 | zfs_ioc_error_log(zfs_cmd_t *zc) | |
3663 | { | |
3664 | spa_t *spa; | |
3665 | int error; | |
3666 | size_t count = (size_t)zc->zc_nvlist_dst_size; | |
3667 | ||
3668 | if ((error = spa_open(zc->zc_name, &spa, FTAG)) != 0) | |
3669 | return (error); | |
3670 | ||
3671 | error = spa_get_errlog(spa, (void *)(uintptr_t)zc->zc_nvlist_dst, | |
3672 | &count); | |
3673 | if (error == 0) | |
3674 | zc->zc_nvlist_dst_size = count; | |
3675 | else | |
3676 | zc->zc_nvlist_dst_size = spa_get_errlog_size(spa); | |
3677 | ||
3678 | spa_close(spa, FTAG); | |
3679 | ||
3680 | return (error); | |
3681 | } | |
3682 | ||
3683 | static int | |
3684 | zfs_ioc_clear(zfs_cmd_t *zc) | |
3685 | { | |
3686 | spa_t *spa; | |
3687 | vdev_t *vd; | |
34dc7c2f BB |
3688 | int error; |
3689 | ||
34dc7c2f | 3690 | /* |
b128c09f | 3691 | * On zpool clear we also fix up missing slogs |
34dc7c2f | 3692 | */ |
b128c09f BB |
3693 | mutex_enter(&spa_namespace_lock); |
3694 | spa = spa_lookup(zc->zc_name); | |
3695 | if (spa == NULL) { | |
3696 | mutex_exit(&spa_namespace_lock); | |
3697 | return (EIO); | |
3698 | } | |
428870ff | 3699 | if (spa_get_log_state(spa) == SPA_LOG_MISSING) { |
b128c09f | 3700 | /* we need to let spa_open/spa_load clear the chains */ |
428870ff | 3701 | spa_set_log_state(spa, SPA_LOG_CLEAR); |
34dc7c2f | 3702 | } |
428870ff | 3703 | spa->spa_last_open_failed = 0; |
b128c09f | 3704 | mutex_exit(&spa_namespace_lock); |
34dc7c2f | 3705 | |
428870ff BB |
3706 | if (zc->zc_cookie & ZPOOL_NO_REWIND) { |
3707 | error = spa_open(zc->zc_name, &spa, FTAG); | |
3708 | } else { | |
3709 | nvlist_t *policy; | |
3710 | nvlist_t *config = NULL; | |
3711 | ||
3712 | if (zc->zc_nvlist_src == NULL) | |
3713 | return (EINVAL); | |
3714 | ||
3715 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
3716 | zc->zc_nvlist_src_size, zc->zc_iflags, &policy)) == 0) { | |
3717 | error = spa_open_rewind(zc->zc_name, &spa, FTAG, | |
3718 | policy, &config); | |
3719 | if (config != NULL) { | |
3720 | (void) put_nvlist(zc, config); | |
3721 | nvlist_free(config); | |
3722 | } | |
3723 | nvlist_free(policy); | |
3724 | } | |
3725 | } | |
3726 | ||
3727 | if (error) | |
b128c09f BB |
3728 | return (error); |
3729 | ||
428870ff | 3730 | spa_vdev_state_enter(spa, SCL_NONE); |
34dc7c2f BB |
3731 | |
3732 | if (zc->zc_guid == 0) { | |
3733 | vd = NULL; | |
b128c09f BB |
3734 | } else { |
3735 | vd = spa_lookup_by_guid(spa, zc->zc_guid, B_TRUE); | |
34dc7c2f | 3736 | if (vd == NULL) { |
b128c09f | 3737 | (void) spa_vdev_state_exit(spa, NULL, ENODEV); |
34dc7c2f BB |
3738 | spa_close(spa, FTAG); |
3739 | return (ENODEV); | |
3740 | } | |
3741 | } | |
3742 | ||
b128c09f BB |
3743 | vdev_clear(spa, vd); |
3744 | ||
3745 | (void) spa_vdev_state_exit(spa, NULL, 0); | |
34dc7c2f | 3746 | |
b128c09f BB |
3747 | /* |
3748 | * Resume any suspended I/Os. | |
3749 | */ | |
9babb374 BB |
3750 | if (zio_resume(spa) != 0) |
3751 | error = EIO; | |
34dc7c2f BB |
3752 | |
3753 | spa_close(spa, FTAG); | |
3754 | ||
9babb374 | 3755 | return (error); |
34dc7c2f BB |
3756 | } |
3757 | ||
3758 | /* | |
3759 | * inputs: | |
3760 | * zc_name name of filesystem | |
3761 | * zc_value name of origin snapshot | |
3762 | * | |
428870ff BB |
3763 | * outputs: |
3764 | * zc_string name of conflicting snapshot, if there is one | |
34dc7c2f BB |
3765 | */ |
3766 | static int | |
3767 | zfs_ioc_promote(zfs_cmd_t *zc) | |
3768 | { | |
3769 | char *cp; | |
3770 | ||
3771 | /* | |
3772 | * We don't need to unmount *all* the origin fs's snapshots, but | |
3773 | * it's easier. | |
3774 | */ | |
3775 | cp = strchr(zc->zc_value, '@'); | |
3776 | if (cp) | |
3777 | *cp = '\0'; | |
3778 | (void) dmu_objset_find(zc->zc_value, | |
3779 | zfs_unmount_snap, NULL, DS_FIND_SNAPSHOTS); | |
428870ff | 3780 | return (dsl_dataset_promote(zc->zc_name, zc->zc_string)); |
34dc7c2f BB |
3781 | } |
3782 | ||
9babb374 BB |
3783 | /* |
3784 | * Retrieve a single {user|group}{used|quota}@... property. | |
3785 | * | |
3786 | * inputs: | |
3787 | * zc_name name of filesystem | |
3788 | * zc_objset_type zfs_userquota_prop_t | |
3789 | * zc_value domain name (eg. "S-1-234-567-89") | |
3790 | * zc_guid RID/UID/GID | |
3791 | * | |
3792 | * outputs: | |
3793 | * zc_cookie property value | |
3794 | */ | |
3795 | static int | |
3796 | zfs_ioc_userspace_one(zfs_cmd_t *zc) | |
3797 | { | |
3798 | zfsvfs_t *zfsvfs; | |
3799 | int error; | |
3800 | ||
3801 | if (zc->zc_objset_type >= ZFS_NUM_USERQUOTA_PROPS) | |
3802 | return (EINVAL); | |
3803 | ||
428870ff | 3804 | error = zfsvfs_hold(zc->zc_name, FTAG, &zfsvfs); |
9babb374 BB |
3805 | if (error) |
3806 | return (error); | |
3807 | ||
3808 | error = zfs_userspace_one(zfsvfs, | |
3809 | zc->zc_objset_type, zc->zc_value, zc->zc_guid, &zc->zc_cookie); | |
3810 | zfsvfs_rele(zfsvfs, FTAG); | |
3811 | ||
3812 | return (error); | |
3813 | } | |
3814 | ||
3815 | /* | |
3816 | * inputs: | |
3817 | * zc_name name of filesystem | |
3818 | * zc_cookie zap cursor | |
3819 | * zc_objset_type zfs_userquota_prop_t | |
3820 | * zc_nvlist_dst[_size] buffer to fill (not really an nvlist) | |
3821 | * | |
3822 | * outputs: | |
3823 | * zc_nvlist_dst[_size] data buffer (array of zfs_useracct_t) | |
3824 | * zc_cookie zap cursor | |
3825 | */ | |
3826 | static int | |
3827 | zfs_ioc_userspace_many(zfs_cmd_t *zc) | |
3828 | { | |
3829 | zfsvfs_t *zfsvfs; | |
428870ff BB |
3830 | int bufsize = zc->zc_nvlist_dst_size; |
3831 | ||
3832 | if (bufsize <= 0) | |
3833 | return (ENOMEM); | |
9babb374 | 3834 | |
428870ff | 3835 | int error = zfsvfs_hold(zc->zc_name, FTAG, &zfsvfs); |
9babb374 BB |
3836 | if (error) |
3837 | return (error); | |
3838 | ||
9babb374 BB |
3839 | void *buf = kmem_alloc(bufsize, KM_SLEEP); |
3840 | ||
3841 | error = zfs_userspace_many(zfsvfs, zc->zc_objset_type, &zc->zc_cookie, | |
3842 | buf, &zc->zc_nvlist_dst_size); | |
3843 | ||
3844 | if (error == 0) { | |
3845 | error = xcopyout(buf, | |
3846 | (void *)(uintptr_t)zc->zc_nvlist_dst, | |
3847 | zc->zc_nvlist_dst_size); | |
3848 | } | |
3849 | kmem_free(buf, bufsize); | |
3850 | zfsvfs_rele(zfsvfs, FTAG); | |
3851 | ||
3852 | return (error); | |
3853 | } | |
3854 | ||
3855 | /* | |
3856 | * inputs: | |
3857 | * zc_name name of filesystem | |
3858 | * | |
3859 | * outputs: | |
3860 | * none | |
3861 | */ | |
3862 | static int | |
3863 | zfs_ioc_userspace_upgrade(zfs_cmd_t *zc) | |
3864 | { | |
3865 | objset_t *os; | |
428870ff | 3866 | int error = 0; |
9babb374 BB |
3867 | zfsvfs_t *zfsvfs; |
3868 | ||
3869 | if (getzfsvfs(zc->zc_name, &zfsvfs) == 0) { | |
428870ff | 3870 | if (!dmu_objset_userused_enabled(zfsvfs->z_os)) { |
9babb374 BB |
3871 | /* |
3872 | * If userused is not enabled, it may be because the | |
3873 | * objset needs to be closed & reopened (to grow the | |
3874 | * objset_phys_t). Suspend/resume the fs will do that. | |
3875 | */ | |
428870ff BB |
3876 | error = zfs_suspend_fs(zfsvfs); |
3877 | if (error == 0) | |
3878 | error = zfs_resume_fs(zfsvfs, zc->zc_name); | |
9babb374 BB |
3879 | } |
3880 | if (error == 0) | |
3881 | error = dmu_objset_userspace_upgrade(zfsvfs->z_os); | |
3882 | VFS_RELE(zfsvfs->z_vfs); | |
3883 | } else { | |
428870ff BB |
3884 | /* XXX kind of reading contents without owning */ |
3885 | error = dmu_objset_hold(zc->zc_name, FTAG, &os); | |
9babb374 BB |
3886 | if (error) |
3887 | return (error); | |
3888 | ||
3889 | error = dmu_objset_userspace_upgrade(os); | |
428870ff | 3890 | dmu_objset_rele(os, FTAG); |
9babb374 BB |
3891 | } |
3892 | ||
3893 | return (error); | |
3894 | } | |
3895 | ||
34dc7c2f BB |
3896 | /* |
3897 | * We don't want to have a hard dependency | |
3898 | * against some special symbols in sharefs | |
3899 | * nfs, and smbsrv. Determine them if needed when | |
3900 | * the first file system is shared. | |
3901 | * Neither sharefs, nfs or smbsrv are unloadable modules. | |
3902 | */ | |
3903 | int (*znfsexport_fs)(void *arg); | |
3904 | int (*zshare_fs)(enum sharefs_sys_op, share_t *, uint32_t); | |
3905 | int (*zsmbexport_fs)(void *arg, boolean_t add_share); | |
3906 | ||
3907 | int zfs_nfsshare_inited; | |
3908 | int zfs_smbshare_inited; | |
3909 | ||
3910 | ddi_modhandle_t nfs_mod; | |
3911 | ddi_modhandle_t sharefs_mod; | |
3912 | ddi_modhandle_t smbsrv_mod; | |
3913 | kmutex_t zfs_share_lock; | |
3914 | ||
3915 | static int | |
3916 | zfs_init_sharefs() | |
3917 | { | |
3918 | int error; | |
3919 | ||
3920 | ASSERT(MUTEX_HELD(&zfs_share_lock)); | |
3921 | /* Both NFS and SMB shares also require sharetab support. */ | |
3922 | if (sharefs_mod == NULL && ((sharefs_mod = | |
3923 | ddi_modopen("fs/sharefs", | |
3924 | KRTLD_MODE_FIRST, &error)) == NULL)) { | |
3925 | return (ENOSYS); | |
3926 | } | |
3927 | if (zshare_fs == NULL && ((zshare_fs = | |
3928 | (int (*)(enum sharefs_sys_op, share_t *, uint32_t)) | |
3929 | ddi_modsym(sharefs_mod, "sharefs_impl", &error)) == NULL)) { | |
3930 | return (ENOSYS); | |
3931 | } | |
3932 | return (0); | |
3933 | } | |
3934 | ||
3935 | static int | |
3936 | zfs_ioc_share(zfs_cmd_t *zc) | |
3937 | { | |
3938 | int error; | |
3939 | int opcode; | |
3940 | ||
3941 | switch (zc->zc_share.z_sharetype) { | |
3942 | case ZFS_SHARE_NFS: | |
3943 | case ZFS_UNSHARE_NFS: | |
3944 | if (zfs_nfsshare_inited == 0) { | |
3945 | mutex_enter(&zfs_share_lock); | |
3946 | if (nfs_mod == NULL && ((nfs_mod = ddi_modopen("fs/nfs", | |
3947 | KRTLD_MODE_FIRST, &error)) == NULL)) { | |
3948 | mutex_exit(&zfs_share_lock); | |
3949 | return (ENOSYS); | |
3950 | } | |
3951 | if (znfsexport_fs == NULL && | |
3952 | ((znfsexport_fs = (int (*)(void *)) | |
3953 | ddi_modsym(nfs_mod, | |
3954 | "nfs_export", &error)) == NULL)) { | |
3955 | mutex_exit(&zfs_share_lock); | |
3956 | return (ENOSYS); | |
3957 | } | |
3958 | error = zfs_init_sharefs(); | |
3959 | if (error) { | |
3960 | mutex_exit(&zfs_share_lock); | |
3961 | return (ENOSYS); | |
3962 | } | |
3963 | zfs_nfsshare_inited = 1; | |
3964 | mutex_exit(&zfs_share_lock); | |
3965 | } | |
3966 | break; | |
3967 | case ZFS_SHARE_SMB: | |
3968 | case ZFS_UNSHARE_SMB: | |
3969 | if (zfs_smbshare_inited == 0) { | |
3970 | mutex_enter(&zfs_share_lock); | |
3971 | if (smbsrv_mod == NULL && ((smbsrv_mod = | |
3972 | ddi_modopen("drv/smbsrv", | |
3973 | KRTLD_MODE_FIRST, &error)) == NULL)) { | |
3974 | mutex_exit(&zfs_share_lock); | |
3975 | return (ENOSYS); | |
3976 | } | |
3977 | if (zsmbexport_fs == NULL && ((zsmbexport_fs = | |
3978 | (int (*)(void *, boolean_t))ddi_modsym(smbsrv_mod, | |
3979 | "smb_server_share", &error)) == NULL)) { | |
3980 | mutex_exit(&zfs_share_lock); | |
3981 | return (ENOSYS); | |
3982 | } | |
3983 | error = zfs_init_sharefs(); | |
3984 | if (error) { | |
3985 | mutex_exit(&zfs_share_lock); | |
3986 | return (ENOSYS); | |
3987 | } | |
3988 | zfs_smbshare_inited = 1; | |
3989 | mutex_exit(&zfs_share_lock); | |
3990 | } | |
3991 | break; | |
3992 | default: | |
3993 | return (EINVAL); | |
3994 | } | |
3995 | ||
3996 | switch (zc->zc_share.z_sharetype) { | |
3997 | case ZFS_SHARE_NFS: | |
3998 | case ZFS_UNSHARE_NFS: | |
3999 | if (error = | |
4000 | znfsexport_fs((void *) | |
4001 | (uintptr_t)zc->zc_share.z_exportdata)) | |
4002 | return (error); | |
4003 | break; | |
4004 | case ZFS_SHARE_SMB: | |
4005 | case ZFS_UNSHARE_SMB: | |
4006 | if (error = zsmbexport_fs((void *) | |
4007 | (uintptr_t)zc->zc_share.z_exportdata, | |
4008 | zc->zc_share.z_sharetype == ZFS_SHARE_SMB ? | |
9babb374 | 4009 | B_TRUE: B_FALSE)) { |
34dc7c2f BB |
4010 | return (error); |
4011 | } | |
4012 | break; | |
4013 | } | |
4014 | ||
4015 | opcode = (zc->zc_share.z_sharetype == ZFS_SHARE_NFS || | |
4016 | zc->zc_share.z_sharetype == ZFS_SHARE_SMB) ? | |
4017 | SHAREFS_ADD : SHAREFS_REMOVE; | |
4018 | ||
4019 | /* | |
4020 | * Add or remove share from sharetab | |
4021 | */ | |
4022 | error = zshare_fs(opcode, | |
4023 | (void *)(uintptr_t)zc->zc_share.z_sharedata, | |
4024 | zc->zc_share.z_sharemax); | |
4025 | ||
4026 | return (error); | |
4027 | ||
4028 | } | |
4029 | ||
9babb374 BB |
4030 | ace_t full_access[] = { |
4031 | {(uid_t)-1, ACE_ALL_PERMS, ACE_EVERYONE, 0} | |
4032 | }; | |
4033 | ||
4034 | /* | |
4035 | * Remove all ACL files in shares dir | |
4036 | */ | |
4037 | static int | |
4038 | zfs_smb_acl_purge(znode_t *dzp) | |
4039 | { | |
4040 | zap_cursor_t zc; | |
4041 | zap_attribute_t zap; | |
4042 | zfsvfs_t *zfsvfs = dzp->z_zfsvfs; | |
4043 | int error; | |
4044 | ||
4045 | for (zap_cursor_init(&zc, zfsvfs->z_os, dzp->z_id); | |
4046 | (error = zap_cursor_retrieve(&zc, &zap)) == 0; | |
4047 | zap_cursor_advance(&zc)) { | |
4048 | if ((error = VOP_REMOVE(ZTOV(dzp), zap.za_name, kcred, | |
4049 | NULL, 0)) != 0) | |
4050 | break; | |
4051 | } | |
4052 | zap_cursor_fini(&zc); | |
4053 | return (error); | |
4054 | } | |
4055 | ||
4056 | static int | |
4057 | zfs_ioc_smb_acl(zfs_cmd_t *zc) | |
4058 | { | |
4059 | vnode_t *vp; | |
4060 | znode_t *dzp; | |
4061 | vnode_t *resourcevp = NULL; | |
4062 | znode_t *sharedir; | |
4063 | zfsvfs_t *zfsvfs; | |
4064 | nvlist_t *nvlist; | |
4065 | char *src, *target; | |
4066 | vattr_t vattr; | |
4067 | vsecattr_t vsec; | |
4068 | int error = 0; | |
4069 | ||
4070 | if ((error = lookupname(zc->zc_value, UIO_SYSSPACE, | |
4071 | NO_FOLLOW, NULL, &vp)) != 0) | |
4072 | return (error); | |
4073 | ||
4074 | /* Now make sure mntpnt and dataset are ZFS */ | |
4075 | ||
4076 | if (vp->v_vfsp->vfs_fstype != zfsfstype || | |
4077 | (strcmp((char *)refstr_value(vp->v_vfsp->vfs_resource), | |
4078 | zc->zc_name) != 0)) { | |
4079 | VN_RELE(vp); | |
4080 | return (EINVAL); | |
4081 | } | |
4082 | ||
4083 | dzp = VTOZ(vp); | |
4084 | zfsvfs = dzp->z_zfsvfs; | |
4085 | ZFS_ENTER(zfsvfs); | |
4086 | ||
4087 | /* | |
4088 | * Create share dir if its missing. | |
4089 | */ | |
4090 | mutex_enter(&zfsvfs->z_lock); | |
4091 | if (zfsvfs->z_shares_dir == 0) { | |
4092 | dmu_tx_t *tx; | |
4093 | ||
4094 | tx = dmu_tx_create(zfsvfs->z_os); | |
4095 | dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, TRUE, | |
4096 | ZFS_SHARES_DIR); | |
4097 | dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL); | |
4098 | error = dmu_tx_assign(tx, TXG_WAIT); | |
4099 | if (error) { | |
4100 | dmu_tx_abort(tx); | |
4101 | } else { | |
4102 | error = zfs_create_share_dir(zfsvfs, tx); | |
4103 | dmu_tx_commit(tx); | |
4104 | } | |
4105 | if (error) { | |
4106 | mutex_exit(&zfsvfs->z_lock); | |
4107 | VN_RELE(vp); | |
4108 | ZFS_EXIT(zfsvfs); | |
4109 | return (error); | |
4110 | } | |
4111 | } | |
4112 | mutex_exit(&zfsvfs->z_lock); | |
4113 | ||
4114 | ASSERT(zfsvfs->z_shares_dir); | |
4115 | if ((error = zfs_zget(zfsvfs, zfsvfs->z_shares_dir, &sharedir)) != 0) { | |
4116 | VN_RELE(vp); | |
4117 | ZFS_EXIT(zfsvfs); | |
4118 | return (error); | |
4119 | } | |
4120 | ||
4121 | switch (zc->zc_cookie) { | |
4122 | case ZFS_SMB_ACL_ADD: | |
4123 | vattr.va_mask = AT_MODE|AT_UID|AT_GID|AT_TYPE; | |
4124 | vattr.va_type = VREG; | |
4125 | vattr.va_mode = S_IFREG|0777; | |
4126 | vattr.va_uid = 0; | |
4127 | vattr.va_gid = 0; | |
4128 | ||
4129 | vsec.vsa_mask = VSA_ACE; | |
4130 | vsec.vsa_aclentp = &full_access; | |
4131 | vsec.vsa_aclentsz = sizeof (full_access); | |
4132 | vsec.vsa_aclcnt = 1; | |
4133 | ||
4134 | error = VOP_CREATE(ZTOV(sharedir), zc->zc_string, | |
4135 | &vattr, EXCL, 0, &resourcevp, kcred, 0, NULL, &vsec); | |
4136 | if (resourcevp) | |
4137 | VN_RELE(resourcevp); | |
4138 | break; | |
4139 | ||
4140 | case ZFS_SMB_ACL_REMOVE: | |
4141 | error = VOP_REMOVE(ZTOV(sharedir), zc->zc_string, kcred, | |
4142 | NULL, 0); | |
4143 | break; | |
4144 | ||
4145 | case ZFS_SMB_ACL_RENAME: | |
4146 | if ((error = get_nvlist(zc->zc_nvlist_src, | |
4147 | zc->zc_nvlist_src_size, zc->zc_iflags, &nvlist)) != 0) { | |
4148 | VN_RELE(vp); | |
4149 | ZFS_EXIT(zfsvfs); | |
4150 | return (error); | |
4151 | } | |
4152 | if (nvlist_lookup_string(nvlist, ZFS_SMB_ACL_SRC, &src) || | |
4153 | nvlist_lookup_string(nvlist, ZFS_SMB_ACL_TARGET, | |
4154 | &target)) { | |
4155 | VN_RELE(vp); | |
4156 | VN_RELE(ZTOV(sharedir)); | |
4157 | ZFS_EXIT(zfsvfs); | |
428870ff | 4158 | nvlist_free(nvlist); |
9babb374 BB |
4159 | return (error); |
4160 | } | |
4161 | error = VOP_RENAME(ZTOV(sharedir), src, ZTOV(sharedir), target, | |
4162 | kcred, NULL, 0); | |
4163 | nvlist_free(nvlist); | |
4164 | break; | |
4165 | ||
4166 | case ZFS_SMB_ACL_PURGE: | |
4167 | error = zfs_smb_acl_purge(sharedir); | |
4168 | break; | |
4169 | ||
4170 | default: | |
4171 | error = EINVAL; | |
4172 | break; | |
4173 | } | |
4174 | ||
4175 | VN_RELE(vp); | |
4176 | VN_RELE(ZTOV(sharedir)); | |
4177 | ||
4178 | ZFS_EXIT(zfsvfs); | |
4179 | ||
4180 | return (error); | |
4181 | } | |
4182 | ||
45d1cae3 BB |
4183 | /* |
4184 | * inputs: | |
4185 | * zc_name name of filesystem | |
4186 | * zc_value short name of snap | |
4187 | * zc_string user-supplied tag for this reference | |
4188 | * zc_cookie recursive flag | |
428870ff | 4189 | * zc_temphold set if hold is temporary |
45d1cae3 BB |
4190 | * |
4191 | * outputs: none | |
4192 | */ | |
4193 | static int | |
4194 | zfs_ioc_hold(zfs_cmd_t *zc) | |
4195 | { | |
4196 | boolean_t recursive = zc->zc_cookie; | |
4197 | ||
4198 | if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0) | |
4199 | return (EINVAL); | |
4200 | ||
4201 | return (dsl_dataset_user_hold(zc->zc_name, zc->zc_value, | |
428870ff | 4202 | zc->zc_string, recursive, zc->zc_temphold)); |
45d1cae3 BB |
4203 | } |
4204 | ||
4205 | /* | |
4206 | * inputs: | |
4207 | * zc_name name of dataset from which we're releasing a user reference | |
4208 | * zc_value short name of snap | |
4209 | * zc_string user-supplied tag for this reference | |
4210 | * zc_cookie recursive flag | |
4211 | * | |
4212 | * outputs: none | |
4213 | */ | |
4214 | static int | |
4215 | zfs_ioc_release(zfs_cmd_t *zc) | |
4216 | { | |
4217 | boolean_t recursive = zc->zc_cookie; | |
4218 | ||
4219 | if (snapshot_namecheck(zc->zc_value, NULL, NULL) != 0) | |
4220 | return (EINVAL); | |
4221 | ||
4222 | return (dsl_dataset_user_release(zc->zc_name, zc->zc_value, | |
4223 | zc->zc_string, recursive)); | |
4224 | } | |
4225 | ||
4226 | /* | |
4227 | * inputs: | |
4228 | * zc_name name of filesystem | |
4229 | * | |
4230 | * outputs: | |
4231 | * zc_nvlist_src{_size} nvlist of snapshot holds | |
4232 | */ | |
4233 | static int | |
4234 | zfs_ioc_get_holds(zfs_cmd_t *zc) | |
4235 | { | |
4236 | nvlist_t *nvp; | |
4237 | int error; | |
4238 | ||
4239 | if ((error = dsl_dataset_get_holds(zc->zc_name, &nvp)) == 0) { | |
4240 | error = put_nvlist(zc, nvp); | |
4241 | nvlist_free(nvp); | |
4242 | } | |
4243 | ||
4244 | return (error); | |
4245 | } | |
4246 | ||
34dc7c2f BB |
4247 | /* |
4248 | * pool create, destroy, and export don't log the history as part of | |
4249 | * zfsdev_ioctl, but rather zfs_ioc_pool_create, and zfs_ioc_pool_export | |
4250 | * do the logging of those commands. | |
4251 | */ | |
4252 | static zfs_ioc_vec_t zfs_ioc_vec[] = { | |
9babb374 BB |
4253 | { zfs_ioc_pool_create, zfs_secpolicy_config, POOL_NAME, B_FALSE, |
4254 | B_FALSE }, | |
4255 | { zfs_ioc_pool_destroy, zfs_secpolicy_config, POOL_NAME, B_FALSE, | |
4256 | B_FALSE }, | |
4257 | { zfs_ioc_pool_import, zfs_secpolicy_config, POOL_NAME, B_TRUE, | |
4258 | B_FALSE }, | |
4259 | { zfs_ioc_pool_export, zfs_secpolicy_config, POOL_NAME, B_FALSE, | |
4260 | B_FALSE }, | |
4261 | { zfs_ioc_pool_configs, zfs_secpolicy_none, NO_NAME, B_FALSE, | |
4262 | B_FALSE }, | |
4263 | { zfs_ioc_pool_stats, zfs_secpolicy_read, POOL_NAME, B_FALSE, | |
4264 | B_FALSE }, | |
4265 | { zfs_ioc_pool_tryimport, zfs_secpolicy_config, NO_NAME, B_FALSE, | |
4266 | B_FALSE }, | |
428870ff | 4267 | { zfs_ioc_pool_scan, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
9babb374 BB |
4268 | B_TRUE }, |
4269 | { zfs_ioc_pool_freeze, zfs_secpolicy_config, NO_NAME, B_FALSE, | |
4270 | B_FALSE }, | |
4271 | { zfs_ioc_pool_upgrade, zfs_secpolicy_config, POOL_NAME, B_TRUE, | |
4272 | B_TRUE }, | |
4273 | { zfs_ioc_pool_get_history, zfs_secpolicy_config, POOL_NAME, B_FALSE, | |
4274 | B_FALSE }, | |
4275 | { zfs_ioc_vdev_add, zfs_secpolicy_config, POOL_NAME, B_TRUE, | |
4276 | B_TRUE }, | |
4277 | { zfs_ioc_vdev_remove, zfs_secpolicy_config, POOL_NAME, B_TRUE, | |
4278 | B_TRUE }, | |
4279 | { zfs_ioc_vdev_set_state, zfs_secpolicy_config, POOL_NAME, B_TRUE, | |
4280 | B_FALSE }, | |
4281 | { zfs_ioc_vdev_attach, zfs_secpolicy_config, POOL_NAME, B_TRUE, | |
4282 | B_TRUE }, | |
4283 | { zfs_ioc_vdev_detach, zfs_secpolicy_config, POOL_NAME, B_TRUE, | |
4284 | B_TRUE }, | |
4285 | { zfs_ioc_vdev_setpath, zfs_secpolicy_config, POOL_NAME, B_FALSE, | |
4286 | B_TRUE }, | |
4287 | { zfs_ioc_vdev_setfru, zfs_secpolicy_config, POOL_NAME, B_FALSE, | |
4288 | B_TRUE }, | |
4289 | { zfs_ioc_objset_stats, zfs_secpolicy_read, DATASET_NAME, B_FALSE, | |
428870ff | 4290 | B_TRUE }, |
9babb374 BB |
4291 | { zfs_ioc_objset_zplprops, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
4292 | B_FALSE }, | |
4293 | { zfs_ioc_dataset_list_next, zfs_secpolicy_read, DATASET_NAME, B_FALSE, | |
428870ff | 4294 | B_TRUE }, |
9babb374 | 4295 | { zfs_ioc_snapshot_list_next, zfs_secpolicy_read, DATASET_NAME, B_FALSE, |
428870ff | 4296 | B_TRUE }, |
9babb374 | 4297 | { zfs_ioc_set_prop, zfs_secpolicy_none, DATASET_NAME, B_TRUE, B_TRUE }, |
9babb374 BB |
4298 | { zfs_ioc_create, zfs_secpolicy_create, DATASET_NAME, B_TRUE, B_TRUE }, |
4299 | { zfs_ioc_destroy, zfs_secpolicy_destroy, DATASET_NAME, B_TRUE, | |
4300 | B_TRUE}, | |
4301 | { zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME, B_TRUE, | |
4302 | B_TRUE }, | |
4303 | { zfs_ioc_rename, zfs_secpolicy_rename, DATASET_NAME, B_TRUE, B_TRUE }, | |
4304 | { zfs_ioc_recv, zfs_secpolicy_receive, DATASET_NAME, B_TRUE, B_TRUE }, | |
4305 | { zfs_ioc_send, zfs_secpolicy_send, DATASET_NAME, B_TRUE, B_FALSE }, | |
4306 | { zfs_ioc_inject_fault, zfs_secpolicy_inject, NO_NAME, B_FALSE, | |
4307 | B_FALSE }, | |
4308 | { zfs_ioc_clear_fault, zfs_secpolicy_inject, NO_NAME, B_FALSE, | |
4309 | B_FALSE }, | |
4310 | { zfs_ioc_inject_list_next, zfs_secpolicy_inject, NO_NAME, B_FALSE, | |
4311 | B_FALSE }, | |
4312 | { zfs_ioc_error_log, zfs_secpolicy_inject, POOL_NAME, B_FALSE, | |
4313 | B_FALSE }, | |
4314 | { zfs_ioc_clear, zfs_secpolicy_config, POOL_NAME, B_TRUE, B_FALSE }, | |
4315 | { zfs_ioc_promote, zfs_secpolicy_promote, DATASET_NAME, B_TRUE, | |
4316 | B_TRUE }, | |
428870ff BB |
4317 | { zfs_ioc_destroy_snaps, zfs_secpolicy_destroy_snaps, DATASET_NAME, |
4318 | B_TRUE, B_TRUE }, | |
9babb374 BB |
4319 | { zfs_ioc_snapshot, zfs_secpolicy_snapshot, DATASET_NAME, B_TRUE, |
4320 | B_TRUE }, | |
4321 | { zfs_ioc_dsobj_to_dsname, zfs_secpolicy_config, POOL_NAME, B_FALSE, | |
4322 | B_FALSE }, | |
45d1cae3 BB |
4323 | { zfs_ioc_obj_to_path, zfs_secpolicy_config, DATASET_NAME, B_FALSE, |
4324 | B_TRUE }, | |
9babb374 BB |
4325 | { zfs_ioc_pool_set_props, zfs_secpolicy_config, POOL_NAME, B_TRUE, |
4326 | B_TRUE }, | |
4327 | { zfs_ioc_pool_get_props, zfs_secpolicy_read, POOL_NAME, B_FALSE, | |
4328 | B_FALSE }, | |
4329 | { zfs_ioc_set_fsacl, zfs_secpolicy_fsacl, DATASET_NAME, B_TRUE, | |
4330 | B_TRUE }, | |
4331 | { zfs_ioc_get_fsacl, zfs_secpolicy_read, DATASET_NAME, B_FALSE, | |
4332 | B_FALSE }, | |
9babb374 BB |
4333 | { zfs_ioc_share, zfs_secpolicy_share, DATASET_NAME, B_FALSE, B_FALSE }, |
4334 | { zfs_ioc_inherit_prop, zfs_secpolicy_inherit, DATASET_NAME, B_TRUE, | |
4335 | B_TRUE }, | |
4336 | { zfs_ioc_smb_acl, zfs_secpolicy_smb_acl, DATASET_NAME, B_FALSE, | |
4337 | B_FALSE }, | |
4338 | { zfs_ioc_userspace_one, zfs_secpolicy_userspace_one, | |
4339 | DATASET_NAME, B_FALSE, B_FALSE }, | |
4340 | { zfs_ioc_userspace_many, zfs_secpolicy_userspace_many, | |
4341 | DATASET_NAME, B_FALSE, B_FALSE }, | |
4342 | { zfs_ioc_userspace_upgrade, zfs_secpolicy_userspace_upgrade, | |
4343 | DATASET_NAME, B_FALSE, B_TRUE }, | |
45d1cae3 BB |
4344 | { zfs_ioc_hold, zfs_secpolicy_hold, DATASET_NAME, B_TRUE, B_TRUE }, |
4345 | { zfs_ioc_release, zfs_secpolicy_release, DATASET_NAME, B_TRUE, | |
4346 | B_TRUE }, | |
4347 | { zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME, B_FALSE, | |
428870ff BB |
4348 | B_TRUE }, |
4349 | { zfs_ioc_objset_recvd_props, zfs_secpolicy_read, DATASET_NAME, B_FALSE, | |
4350 | B_FALSE }, | |
4351 | { zfs_ioc_vdev_split, zfs_secpolicy_config, POOL_NAME, B_TRUE, | |
45d1cae3 | 4352 | B_TRUE } |
34dc7c2f BB |
4353 | }; |
4354 | ||
9babb374 BB |
4355 | int |
4356 | pool_status_check(const char *name, zfs_ioc_namecheck_t type) | |
4357 | { | |
4358 | spa_t *spa; | |
4359 | int error; | |
4360 | ||
4361 | ASSERT(type == POOL_NAME || type == DATASET_NAME); | |
4362 | ||
4363 | error = spa_open(name, &spa, FTAG); | |
4364 | if (error == 0) { | |
4365 | if (spa_suspended(spa)) | |
4366 | error = EAGAIN; | |
4367 | spa_close(spa, FTAG); | |
4368 | } | |
4369 | return (error); | |
4370 | } | |
4371 | ||
34dc7c2f BB |
4372 | static int |
4373 | zfsdev_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr, int *rvalp) | |
4374 | { | |
4375 | zfs_cmd_t *zc; | |
4376 | uint_t vec; | |
4377 | int error, rc; | |
4378 | ||
4379 | if (getminor(dev) != 0) | |
4380 | return (zvol_ioctl(dev, cmd, arg, flag, cr, rvalp)); | |
4381 | ||
4382 | vec = cmd - ZFS_IOC; | |
4383 | ASSERT3U(getmajor(dev), ==, ddi_driver_major(zfs_dip)); | |
4384 | ||
4385 | if (vec >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0])) | |
4386 | return (EINVAL); | |
4387 | ||
4388 | zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); | |
4389 | ||
9babb374 | 4390 | error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag); |
428870ff BB |
4391 | if (error != 0) |
4392 | error = EFAULT; | |
34dc7c2f | 4393 | |
428870ff | 4394 | if ((error == 0) && !(flag & FKIOCTL)) |
34dc7c2f BB |
4395 | error = zfs_ioc_vec[vec].zvec_secpolicy(zc, cr); |
4396 | ||
4397 | /* | |
4398 | * Ensure that all pool/dataset names are valid before we pass down to | |
4399 | * the lower layers. | |
4400 | */ | |
4401 | if (error == 0) { | |
4402 | zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; | |
9babb374 | 4403 | zc->zc_iflags = flag & FKIOCTL; |
34dc7c2f BB |
4404 | switch (zfs_ioc_vec[vec].zvec_namecheck) { |
4405 | case POOL_NAME: | |
4406 | if (pool_namecheck(zc->zc_name, NULL, NULL) != 0) | |
4407 | error = EINVAL; | |
9babb374 BB |
4408 | if (zfs_ioc_vec[vec].zvec_pool_check) |
4409 | error = pool_status_check(zc->zc_name, | |
4410 | zfs_ioc_vec[vec].zvec_namecheck); | |
34dc7c2f BB |
4411 | break; |
4412 | ||
4413 | case DATASET_NAME: | |
4414 | if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0) | |
4415 | error = EINVAL; | |
9babb374 BB |
4416 | if (zfs_ioc_vec[vec].zvec_pool_check) |
4417 | error = pool_status_check(zc->zc_name, | |
4418 | zfs_ioc_vec[vec].zvec_namecheck); | |
34dc7c2f BB |
4419 | break; |
4420 | ||
4421 | case NO_NAME: | |
4422 | break; | |
4423 | } | |
4424 | } | |
4425 | ||
4426 | if (error == 0) | |
4427 | error = zfs_ioc_vec[vec].zvec_func(zc); | |
4428 | ||
9babb374 | 4429 | rc = ddi_copyout(zc, (void *)arg, sizeof (zfs_cmd_t), flag); |
34dc7c2f | 4430 | if (error == 0) { |
428870ff BB |
4431 | if (rc != 0) |
4432 | error = EFAULT; | |
9babb374 | 4433 | if (zfs_ioc_vec[vec].zvec_his_log) |
34dc7c2f BB |
4434 | zfs_log_history(zc); |
4435 | } | |
4436 | ||
4437 | kmem_free(zc, sizeof (zfs_cmd_t)); | |
4438 | return (error); | |
4439 | } | |
4440 | ||
4441 | static int | |
4442 | zfs_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) | |
4443 | { | |
4444 | if (cmd != DDI_ATTACH) | |
4445 | return (DDI_FAILURE); | |
4446 | ||
4447 | if (ddi_create_minor_node(dip, "zfs", S_IFCHR, 0, | |
4448 | DDI_PSEUDO, 0) == DDI_FAILURE) | |
4449 | return (DDI_FAILURE); | |
4450 | ||
4451 | zfs_dip = dip; | |
4452 | ||
4453 | ddi_report_dev(dip); | |
4454 | ||
4455 | return (DDI_SUCCESS); | |
4456 | } | |
4457 | ||
4458 | static int | |
4459 | zfs_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) | |
4460 | { | |
4461 | if (spa_busy() || zfs_busy() || zvol_busy()) | |
4462 | return (DDI_FAILURE); | |
4463 | ||
4464 | if (cmd != DDI_DETACH) | |
4465 | return (DDI_FAILURE); | |
4466 | ||
4467 | zfs_dip = NULL; | |
4468 | ||
4469 | ddi_prop_remove_all(dip); | |
4470 | ddi_remove_minor_node(dip, NULL); | |
4471 | ||
4472 | return (DDI_SUCCESS); | |
4473 | } | |
4474 | ||
4475 | /*ARGSUSED*/ | |
4476 | static int | |
4477 | zfs_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result) | |
4478 | { | |
4479 | switch (infocmd) { | |
4480 | case DDI_INFO_DEVT2DEVINFO: | |
4481 | *result = zfs_dip; | |
4482 | return (DDI_SUCCESS); | |
4483 | ||
4484 | case DDI_INFO_DEVT2INSTANCE: | |
4485 | *result = (void *)0; | |
4486 | return (DDI_SUCCESS); | |
4487 | } | |
4488 | ||
4489 | return (DDI_FAILURE); | |
4490 | } | |
4491 | ||
4492 | /* | |
4493 | * OK, so this is a little weird. | |
4494 | * | |
4495 | * /dev/zfs is the control node, i.e. minor 0. | |
4496 | * /dev/zvol/[r]dsk/pool/dataset are the zvols, minor > 0. | |
4497 | * | |
4498 | * /dev/zfs has basically nothing to do except serve up ioctls, | |
4499 | * so most of the standard driver entry points are in zvol.c. | |
4500 | */ | |
4501 | static struct cb_ops zfs_cb_ops = { | |
4502 | zvol_open, /* open */ | |
4503 | zvol_close, /* close */ | |
4504 | zvol_strategy, /* strategy */ | |
4505 | nodev, /* print */ | |
4506 | zvol_dump, /* dump */ | |
4507 | zvol_read, /* read */ | |
4508 | zvol_write, /* write */ | |
4509 | zfsdev_ioctl, /* ioctl */ | |
4510 | nodev, /* devmap */ | |
4511 | nodev, /* mmap */ | |
4512 | nodev, /* segmap */ | |
4513 | nochpoll, /* poll */ | |
4514 | ddi_prop_op, /* prop_op */ | |
4515 | NULL, /* streamtab */ | |
4516 | D_NEW | D_MP | D_64BIT, /* Driver compatibility flag */ | |
4517 | CB_REV, /* version */ | |
4518 | nodev, /* async read */ | |
4519 | nodev, /* async write */ | |
4520 | }; | |
4521 | ||
4522 | static struct dev_ops zfs_dev_ops = { | |
4523 | DEVO_REV, /* version */ | |
4524 | 0, /* refcnt */ | |
4525 | zfs_info, /* info */ | |
4526 | nulldev, /* identify */ | |
4527 | nulldev, /* probe */ | |
4528 | zfs_attach, /* attach */ | |
4529 | zfs_detach, /* detach */ | |
4530 | nodev, /* reset */ | |
4531 | &zfs_cb_ops, /* driver operations */ | |
b128c09f BB |
4532 | NULL, /* no bus operations */ |
4533 | NULL, /* power */ | |
4534 | ddi_quiesce_not_needed, /* quiesce */ | |
34dc7c2f BB |
4535 | }; |
4536 | ||
4537 | static struct modldrv zfs_modldrv = { | |
b128c09f BB |
4538 | &mod_driverops, |
4539 | "ZFS storage pool", | |
4540 | &zfs_dev_ops | |
34dc7c2f BB |
4541 | }; |
4542 | ||
4543 | static struct modlinkage modlinkage = { | |
4544 | MODREV_1, | |
4545 | (void *)&zfs_modlfs, | |
4546 | (void *)&zfs_modldrv, | |
4547 | NULL | |
4548 | }; | |
4549 | ||
4550 | ||
4551 | uint_t zfs_fsyncer_key; | |
4552 | extern uint_t rrw_tsd_key; | |
4553 | ||
4554 | int | |
4555 | _init(void) | |
4556 | { | |
4557 | int error; | |
4558 | ||
4559 | spa_init(FREAD | FWRITE); | |
4560 | zfs_init(); | |
4561 | zvol_init(); | |
4562 | ||
4563 | if ((error = mod_install(&modlinkage)) != 0) { | |
4564 | zvol_fini(); | |
4565 | zfs_fini(); | |
4566 | spa_fini(); | |
4567 | return (error); | |
4568 | } | |
4569 | ||
4570 | tsd_create(&zfs_fsyncer_key, NULL); | |
4571 | tsd_create(&rrw_tsd_key, NULL); | |
4572 | ||
4573 | error = ldi_ident_from_mod(&modlinkage, &zfs_li); | |
4574 | ASSERT(error == 0); | |
4575 | mutex_init(&zfs_share_lock, NULL, MUTEX_DEFAULT, NULL); | |
4576 | ||
4577 | return (0); | |
4578 | } | |
4579 | ||
4580 | int | |
4581 | _fini(void) | |
4582 | { | |
4583 | int error; | |
4584 | ||
4585 | if (spa_busy() || zfs_busy() || zvol_busy() || zio_injection_enabled) | |
4586 | return (EBUSY); | |
4587 | ||
4588 | if ((error = mod_remove(&modlinkage)) != 0) | |
4589 | return (error); | |
4590 | ||
4591 | zvol_fini(); | |
4592 | zfs_fini(); | |
4593 | spa_fini(); | |
4594 | if (zfs_nfsshare_inited) | |
4595 | (void) ddi_modclose(nfs_mod); | |
4596 | if (zfs_smbshare_inited) | |
4597 | (void) ddi_modclose(smbsrv_mod); | |
4598 | if (zfs_nfsshare_inited || zfs_smbshare_inited) | |
4599 | (void) ddi_modclose(sharefs_mod); | |
4600 | ||
4601 | tsd_destroy(&zfs_fsyncer_key); | |
4602 | ldi_ident_release(zfs_li); | |
4603 | zfs_li = NULL; | |
4604 | mutex_destroy(&zfs_share_lock); | |
4605 | ||
4606 | return (error); | |
4607 | } | |
4608 | ||
4609 | int | |
4610 | _info(struct modinfo *modinfop) | |
4611 | { | |
4612 | return (mod_info(&modlinkage, modinfop)); | |
4613 | } |