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.
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.
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]
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2011, 2015 by Delphix. All rights reserved.
25 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
26 * Copyright (c) 2013 Steven Hartland. All rights reserved.
27 * Copyright (c) 2016, Intel Corporation.
28 * Copyright 2016 Nexenta Systems, Inc.
29 * Copyright (c) 2017 Datto Inc.
36 #include <libnvpair.h>
37 #include <sys/mnttab.h>
38 #include <sys/param.h>
39 #include <sys/types.h>
40 #include <sys/varargs.h>
41 #include <sys/fs/zfs.h>
44 #include <libzfs_core.h>
51 * Miscellaneous ZFS constants
53 #define ZFS_MAXPROPLEN MAXPATHLEN
54 #define ZPOOL_MAXPROPLEN MAXPATHLEN
57 * Default device paths
59 #define DISK_ROOT "/dev"
60 #define UDISK_ROOT "/dev/disk"
61 #define ZVOL_ROOT "/dev/zvol"
64 * Default wait time for a device name to be created.
66 #define DISK_LABEL_WAIT (30 * 1000) /* 30 seconds */
68 #define IMPORT_ORDER_PREFERRED_1 1
69 #define IMPORT_ORDER_PREFERRED_2 2
70 #define IMPORT_ORDER_SCAN_OFFSET 10
71 #define IMPORT_ORDER_DEFAULT 100
72 #define DEFAULT_IMPORT_PATH_SIZE 9
73 extern char *zpool_default_import_path[DEFAULT_IMPORT_PATH_SIZE];
78 typedef enum zfs_error {
79 EZFS_SUCCESS = 0, /* no error -- success */
80 EZFS_NOMEM = 2000, /* out of memory */
81 EZFS_BADPROP, /* invalid property value */
82 EZFS_PROPREADONLY, /* cannot set readonly property */
83 EZFS_PROPTYPE, /* property does not apply to dataset type */
84 EZFS_PROPNONINHERIT, /* property is not inheritable */
85 EZFS_PROPSPACE, /* bad quota or reservation */
86 EZFS_BADTYPE, /* dataset is not of appropriate type */
87 EZFS_BUSY, /* pool or dataset is busy */
88 EZFS_EXISTS, /* pool or dataset already exists */
89 EZFS_NOENT, /* no such pool or dataset */
90 EZFS_BADSTREAM, /* bad backup stream */
91 EZFS_DSREADONLY, /* dataset is readonly */
92 EZFS_VOLTOOBIG, /* volume is too large for 32-bit system */
93 EZFS_INVALIDNAME, /* invalid dataset name */
94 EZFS_BADRESTORE, /* unable to restore to destination */
95 EZFS_BADBACKUP, /* backup failed */
96 EZFS_BADTARGET, /* bad attach/detach/replace target */
97 EZFS_NODEVICE, /* no such device in pool */
98 EZFS_BADDEV, /* invalid device to add */
99 EZFS_NOREPLICAS, /* no valid replicas */
100 EZFS_RESILVERING, /* currently resilvering */
101 EZFS_BADVERSION, /* unsupported version */
102 EZFS_POOLUNAVAIL, /* pool is currently unavailable */
103 EZFS_DEVOVERFLOW, /* too many devices in one vdev */
104 EZFS_BADPATH, /* must be an absolute path */
105 EZFS_CROSSTARGET, /* rename or clone across pool or dataset */
106 EZFS_ZONED, /* used improperly in local zone */
107 EZFS_MOUNTFAILED, /* failed to mount dataset */
108 EZFS_UMOUNTFAILED, /* failed to unmount dataset */
109 EZFS_UNSHARENFSFAILED, /* unshare(1M) failed */
110 EZFS_SHARENFSFAILED, /* share(1M) failed */
111 EZFS_PERM, /* permission denied */
112 EZFS_NOSPC, /* out of space */
113 EZFS_FAULT, /* bad address */
114 EZFS_IO, /* I/O error */
115 EZFS_INTR, /* signal received */
116 EZFS_ISSPARE, /* device is a hot spare */
117 EZFS_INVALCONFIG, /* invalid vdev configuration */
118 EZFS_RECURSIVE, /* recursive dependency */
119 EZFS_NOHISTORY, /* no history object */
120 EZFS_POOLPROPS, /* couldn't retrieve pool props */
121 EZFS_POOL_NOTSUP, /* ops not supported for this type of pool */
122 EZFS_POOL_INVALARG, /* invalid argument for this pool operation */
123 EZFS_NAMETOOLONG, /* dataset name is too long */
124 EZFS_OPENFAILED, /* open of device failed */
125 EZFS_NOCAP, /* couldn't get capacity */
126 EZFS_LABELFAILED, /* write of label failed */
127 EZFS_BADWHO, /* invalid permission who */
128 EZFS_BADPERM, /* invalid permission */
129 EZFS_BADPERMSET, /* invalid permission set name */
130 EZFS_NODELEGATION, /* delegated administration is disabled */
131 EZFS_UNSHARESMBFAILED, /* failed to unshare over smb */
132 EZFS_SHARESMBFAILED, /* failed to share over smb */
133 EZFS_BADCACHE, /* bad cache file */
134 EZFS_ISL2CACHE, /* device is for the level 2 ARC */
135 EZFS_VDEVNOTSUP, /* unsupported vdev type */
136 EZFS_NOTSUP, /* ops not supported on this dataset */
137 EZFS_ACTIVE_SPARE, /* pool has active shared spare devices */
138 EZFS_UNPLAYED_LOGS, /* log device has unplayed logs */
139 EZFS_REFTAG_RELE, /* snapshot release: tag not found */
140 EZFS_REFTAG_HOLD, /* snapshot hold: tag already exists */
141 EZFS_TAGTOOLONG, /* snapshot hold/rele: tag too long */
142 EZFS_PIPEFAILED, /* pipe create failed */
143 EZFS_THREADCREATEFAILED, /* thread create failed */
144 EZFS_POSTSPLIT_ONLINE, /* onlining a disk after splitting it */
145 EZFS_SCRUBBING, /* currently scrubbing */
146 EZFS_NO_SCRUB, /* no active scrub */
147 EZFS_DIFF, /* general failure of zfs diff */
148 EZFS_DIFFDATA, /* bad zfs diff data */
149 EZFS_POOLREADONLY, /* pool is in read-only mode */
150 EZFS_SCRUB_PAUSED, /* scrub currently paused */
151 EZFS_ACTIVE_POOL, /* pool is imported on a different system */
152 EZFS_CRYPTOFAILED, /* failed to setup encryption */
157 * The following data structures are all part
158 * of the zfs_allow_t data structure which is
159 * used for printing 'allow' permissions.
160 * It is a linked list of zfs_allow_t's which
161 * then contain avl tree's for user/group/sets/...
162 * and each one of the entries in those trees have
163 * avl tree's for the permissions they belong to and
164 * whether they are local,descendent or local+descendent
165 * permissions. The AVL trees are used primarily for
166 * sorting purposes, but also so that we can quickly find
167 * a given user and or permission.
169 typedef struct zfs_perm_node {
171 char z_pname[MAXPATHLEN];
174 typedef struct zfs_allow_node {
176 char z_key[MAXPATHLEN]; /* name, such as joe */
177 avl_tree_t z_localdescend; /* local+descendent perms */
178 avl_tree_t z_local; /* local permissions */
179 avl_tree_t z_descend; /* descendent permissions */
182 typedef struct zfs_allow {
183 struct zfs_allow *z_next;
184 char z_setpoint[MAXPATHLEN];
186 avl_tree_t z_crperms;
189 avl_tree_t z_everyone;
195 typedef struct zfs_handle zfs_handle_t;
196 typedef struct zpool_handle zpool_handle_t;
197 typedef struct libzfs_handle libzfs_handle_t;
200 * Library initialization
202 extern libzfs_handle_t *libzfs_init(void);
203 extern void libzfs_fini(libzfs_handle_t *);
205 extern libzfs_handle_t *zpool_get_handle(zpool_handle_t *);
206 extern libzfs_handle_t *zfs_get_handle(zfs_handle_t *);
208 extern void libzfs_print_on_error(libzfs_handle_t *, boolean_t);
210 extern void zfs_save_arguments(int argc, char **, char *, int);
211 extern int zpool_log_history(libzfs_handle_t *, const char *);
213 extern int libzfs_errno(libzfs_handle_t *);
214 extern const char *libzfs_error_init(int);
215 extern const char *libzfs_error_action(libzfs_handle_t *);
216 extern const char *libzfs_error_description(libzfs_handle_t *);
217 extern int zfs_standard_error(libzfs_handle_t *, int, const char *);
218 extern void libzfs_mnttab_init(libzfs_handle_t *);
219 extern void libzfs_mnttab_fini(libzfs_handle_t *);
220 extern void libzfs_mnttab_cache(libzfs_handle_t *, boolean_t);
221 extern int libzfs_mnttab_find(libzfs_handle_t *, const char *,
223 extern void libzfs_mnttab_add(libzfs_handle_t *, const char *,
224 const char *, const char *);
225 extern void libzfs_mnttab_remove(libzfs_handle_t *, const char *);
228 * Basic handle functions
230 extern zpool_handle_t *zpool_open(libzfs_handle_t *, const char *);
231 extern zpool_handle_t *zpool_open_canfail(libzfs_handle_t *, const char *);
232 extern void zpool_close(zpool_handle_t *);
233 extern const char *zpool_get_name(zpool_handle_t *);
234 extern int zpool_get_state(zpool_handle_t *);
235 extern char *zpool_state_to_name(vdev_state_t, vdev_aux_t);
236 extern const char *zpool_pool_state_to_name(pool_state_t);
237 extern void zpool_free_handles(libzfs_handle_t *);
240 * Iterate over all active pools in the system.
242 typedef int (*zpool_iter_f)(zpool_handle_t *, void *);
243 extern int zpool_iter(libzfs_handle_t *, zpool_iter_f, void *);
244 extern boolean_t zpool_skip_pool(const char *);
247 * Functions to create and destroy pools
249 extern int zpool_create(libzfs_handle_t *, const char *, nvlist_t *,
250 nvlist_t *, nvlist_t *);
251 extern int zpool_destroy(zpool_handle_t *, const char *);
252 extern int zpool_add(zpool_handle_t *, nvlist_t *);
254 typedef struct splitflags {
255 /* do not split, but return the config that would be split off */
258 /* after splitting, import the pool */
264 * Functions to manipulate pool and vdev state
266 extern int zpool_scan(zpool_handle_t *, pool_scan_func_t, pool_scrub_cmd_t);
267 extern int zpool_clear(zpool_handle_t *, const char *, nvlist_t *);
268 extern int zpool_reguid(zpool_handle_t *);
269 extern int zpool_reopen(zpool_handle_t *);
271 extern int zpool_sync_one(zpool_handle_t *, void *);
273 extern int zpool_vdev_online(zpool_handle_t *, const char *, int,
275 extern int zpool_vdev_offline(zpool_handle_t *, const char *, boolean_t);
276 extern int zpool_vdev_attach(zpool_handle_t *, const char *,
277 const char *, nvlist_t *, int);
278 extern int zpool_vdev_detach(zpool_handle_t *, const char *);
279 extern int zpool_vdev_remove(zpool_handle_t *, const char *);
280 extern int zpool_vdev_split(zpool_handle_t *, char *, nvlist_t **, nvlist_t *,
283 extern int zpool_vdev_fault(zpool_handle_t *, uint64_t, vdev_aux_t);
284 extern int zpool_vdev_degrade(zpool_handle_t *, uint64_t, vdev_aux_t);
285 extern int zpool_vdev_clear(zpool_handle_t *, uint64_t);
287 extern nvlist_t *zpool_find_vdev(zpool_handle_t *, const char *, boolean_t *,
288 boolean_t *, boolean_t *);
289 extern nvlist_t *zpool_find_vdev_by_physpath(zpool_handle_t *, const char *,
290 boolean_t *, boolean_t *, boolean_t *);
291 extern int zpool_label_disk_wait(char *, int);
292 extern int zpool_label_disk(libzfs_handle_t *, zpool_handle_t *, char *);
293 extern uint64_t zpool_vdev_path_to_guid(zpool_handle_t *zhp, const char *path);
295 int zfs_dev_is_dm(char *dev_name);
296 int zfs_dev_is_whole_disk(char *dev_name);
297 char *zfs_get_underlying_path(char *dev_name);
298 char *zfs_get_enclosure_sysfs_path(char *dev_name);
301 * Functions to manage pool properties
303 extern int zpool_set_prop(zpool_handle_t *, const char *, const char *);
304 extern int zpool_get_prop(zpool_handle_t *, zpool_prop_t, char *,
305 size_t proplen, zprop_source_t *, boolean_t literal);
306 extern uint64_t zpool_get_prop_int(zpool_handle_t *, zpool_prop_t,
309 extern const char *zpool_prop_to_name(zpool_prop_t);
310 extern const char *zpool_prop_values(zpool_prop_t);
313 * Pool health statistics.
317 * The following correspond to faults as defined in the (fault.fs.zfs.*)
318 * event namespace. Each is associated with a corresponding message ID.
320 ZPOOL_STATUS_CORRUPT_CACHE, /* corrupt /kernel/drv/zpool.cache */
321 ZPOOL_STATUS_MISSING_DEV_R, /* missing device with replicas */
322 ZPOOL_STATUS_MISSING_DEV_NR, /* missing device with no replicas */
323 ZPOOL_STATUS_CORRUPT_LABEL_R, /* bad device label with replicas */
324 ZPOOL_STATUS_CORRUPT_LABEL_NR, /* bad device label with no replicas */
325 ZPOOL_STATUS_BAD_GUID_SUM, /* sum of device guids didn't match */
326 ZPOOL_STATUS_CORRUPT_POOL, /* pool metadata is corrupted */
327 ZPOOL_STATUS_CORRUPT_DATA, /* data errors in user (meta)data */
328 ZPOOL_STATUS_FAILING_DEV, /* device experiencing errors */
329 ZPOOL_STATUS_VERSION_NEWER, /* newer on-disk version */
330 ZPOOL_STATUS_HOSTID_MISMATCH, /* last accessed by another system */
331 ZPOOL_STATUS_HOSTID_ACTIVE, /* currently active on another system */
332 ZPOOL_STATUS_HOSTID_REQUIRED, /* multihost=on and hostid=0 */
333 ZPOOL_STATUS_IO_FAILURE_WAIT, /* failed I/O, failmode 'wait' */
334 ZPOOL_STATUS_IO_FAILURE_CONTINUE, /* failed I/O, failmode 'continue' */
335 ZPOOL_STATUS_BAD_LOG, /* cannot read log chain(s) */
336 ZPOOL_STATUS_ERRATA, /* informational errata available */
339 * If the pool has unsupported features but can still be opened in
340 * read-only mode, its status is ZPOOL_STATUS_UNSUP_FEAT_WRITE. If the
341 * pool has unsupported features but cannot be opened at all, its
342 * status is ZPOOL_STATUS_UNSUP_FEAT_READ.
344 ZPOOL_STATUS_UNSUP_FEAT_READ, /* unsupported features for read */
345 ZPOOL_STATUS_UNSUP_FEAT_WRITE, /* unsupported features for write */
348 * These faults have no corresponding message ID. At the time we are
349 * checking the status, the original reason for the FMA fault (I/O or
350 * checksum errors) has been lost.
352 ZPOOL_STATUS_FAULTED_DEV_R, /* faulted device with replicas */
353 ZPOOL_STATUS_FAULTED_DEV_NR, /* faulted device with no replicas */
356 * The following are not faults per se, but still an error possibly
357 * requiring administrative attention. There is no corresponding
360 ZPOOL_STATUS_VERSION_OLDER, /* older legacy on-disk version */
361 ZPOOL_STATUS_FEAT_DISABLED, /* supported features are disabled */
362 ZPOOL_STATUS_RESILVERING, /* device being resilvered */
363 ZPOOL_STATUS_OFFLINE_DEV, /* device offline */
364 ZPOOL_STATUS_REMOVED_DEV, /* removed device */
367 * Finally, the following indicates a healthy pool.
372 extern zpool_status_t zpool_get_status(zpool_handle_t *, char **,
374 extern zpool_status_t zpool_import_status(nvlist_t *, char **,
376 extern void zpool_dump_ddt(const ddt_stat_t *dds, const ddt_histogram_t *ddh);
379 * Statistics and configuration functions.
381 extern nvlist_t *zpool_get_config(zpool_handle_t *, nvlist_t **);
382 extern nvlist_t *zpool_get_features(zpool_handle_t *);
383 extern int zpool_refresh_stats(zpool_handle_t *, boolean_t *);
384 extern int zpool_get_errlog(zpool_handle_t *, nvlist_t **);
387 * Import and export functions
389 extern int zpool_export(zpool_handle_t *, boolean_t, const char *);
390 extern int zpool_export_force(zpool_handle_t *, const char *);
391 extern int zpool_import(libzfs_handle_t *, nvlist_t *, const char *,
393 extern int zpool_import_props(libzfs_handle_t *, nvlist_t *, const char *,
395 extern void zpool_print_unsup_feat(nvlist_t *config);
398 * Search for pools to import
401 typedef struct importargs {
402 char **path; /* a list of paths to search */
403 int paths; /* number of paths to search */
404 char *poolname; /* name of a pool to find */
405 uint64_t guid; /* guid of a pool to find */
406 char *cachefile; /* cachefile to use for import */
407 int can_be_active : 1; /* can the pool be active? */
408 int unique : 1; /* does 'poolname' already exist? */
409 int exists : 1; /* set on return if pool already exists */
410 int scan : 1; /* prefer scanning to libblkid cache */
413 extern nvlist_t *zpool_search_import(libzfs_handle_t *, importargs_t *);
414 extern int zpool_tryimport(libzfs_handle_t *hdl, char *target,
415 nvlist_t **configp, importargs_t *args);
417 /* legacy pool search routines */
418 extern nvlist_t *zpool_find_import(libzfs_handle_t *, int, char **);
419 extern nvlist_t *zpool_find_import_cached(libzfs_handle_t *, const char *,
423 * Miscellaneous pool functions
427 extern const char *zfs_history_event_names[];
430 VDEV_NAME_PATH = 1 << 0,
431 VDEV_NAME_GUID = 1 << 1,
432 VDEV_NAME_FOLLOW_LINKS = 1 << 2,
433 VDEV_NAME_TYPE_ID = 1 << 3,
436 extern char *zpool_vdev_name(libzfs_handle_t *, zpool_handle_t *, nvlist_t *,
438 extern int zpool_upgrade(zpool_handle_t *, uint64_t);
439 extern int zpool_get_history(zpool_handle_t *, nvlist_t **);
440 extern int zpool_history_unpack(char *, uint64_t, uint64_t *,
441 nvlist_t ***, uint_t *);
442 extern int zpool_events_next(libzfs_handle_t *, nvlist_t **, int *, unsigned,
444 extern int zpool_events_clear(libzfs_handle_t *, int *);
445 extern int zpool_events_seek(libzfs_handle_t *, uint64_t, int);
446 extern void zpool_obj_to_path(zpool_handle_t *, uint64_t, uint64_t, char *,
448 extern int zfs_ioctl(libzfs_handle_t *, int, struct zfs_cmd *);
449 extern int zpool_get_physpath(zpool_handle_t *, char *, size_t);
450 extern void zpool_explain_recover(libzfs_handle_t *, const char *, int,
454 * Basic handle manipulations. These functions do not create or destroy the
455 * underlying datasets, only the references to them.
457 extern zfs_handle_t *zfs_open(libzfs_handle_t *, const char *, int);
458 extern zfs_handle_t *zfs_handle_dup(zfs_handle_t *);
459 extern void zfs_close(zfs_handle_t *);
460 extern zfs_type_t zfs_get_type(const zfs_handle_t *);
461 extern const char *zfs_get_name(const zfs_handle_t *);
462 extern zpool_handle_t *zfs_get_pool_handle(const zfs_handle_t *);
463 extern const char *zfs_get_pool_name(const zfs_handle_t *);
466 * Property management functions. Some functions are shared with the kernel,
467 * and are found in sys/fs/zfs.h.
471 * zfs dataset property management
473 extern const char *zfs_prop_default_string(zfs_prop_t);
474 extern uint64_t zfs_prop_default_numeric(zfs_prop_t);
475 extern const char *zfs_prop_column_name(zfs_prop_t);
476 extern boolean_t zfs_prop_align_right(zfs_prop_t);
478 extern nvlist_t *zfs_valid_proplist(libzfs_handle_t *, zfs_type_t, nvlist_t *,
479 uint64_t, zfs_handle_t *, zpool_handle_t *, boolean_t, const char *);
481 extern const char *zfs_prop_to_name(zfs_prop_t);
482 extern int zfs_prop_set(zfs_handle_t *, const char *, const char *);
483 extern int zfs_prop_set_list(zfs_handle_t *, nvlist_t *);
484 extern int zfs_prop_get(zfs_handle_t *, zfs_prop_t, char *, size_t,
485 zprop_source_t *, char *, size_t, boolean_t);
486 extern int zfs_prop_get_recvd(zfs_handle_t *, const char *, char *, size_t,
488 extern int zfs_prop_get_numeric(zfs_handle_t *, zfs_prop_t, uint64_t *,
489 zprop_source_t *, char *, size_t);
490 extern int zfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname,
491 uint64_t *propvalue);
492 extern int zfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname,
493 char *propbuf, int proplen, boolean_t literal);
494 extern int zfs_prop_get_written_int(zfs_handle_t *zhp, const char *propname,
495 uint64_t *propvalue);
496 extern int zfs_prop_get_written(zfs_handle_t *zhp, const char *propname,
497 char *propbuf, int proplen, boolean_t literal);
498 extern int zfs_prop_get_feature(zfs_handle_t *zhp, const char *propname,
499 char *buf, size_t len);
500 extern uint64_t getprop_uint64(zfs_handle_t *, zfs_prop_t, char **);
501 extern uint64_t zfs_prop_get_int(zfs_handle_t *, zfs_prop_t);
502 extern int zfs_prop_inherit(zfs_handle_t *, const char *, boolean_t);
503 extern const char *zfs_prop_values(zfs_prop_t);
504 extern int zfs_prop_is_string(zfs_prop_t prop);
505 extern nvlist_t *zfs_get_user_props(zfs_handle_t *);
506 extern nvlist_t *zfs_get_recvd_props(zfs_handle_t *);
507 extern nvlist_t *zfs_get_clones_nvl(zfs_handle_t *);
510 * zfs encryption management
512 extern int zfs_crypto_get_encryption_root(zfs_handle_t *, boolean_t *, char *);
513 extern int zfs_crypto_create(libzfs_handle_t *, char *, nvlist_t *, nvlist_t *,
514 uint8_t **, uint_t *);
515 extern int zfs_crypto_clone_check(libzfs_handle_t *, zfs_handle_t *, char *,
517 extern int zfs_crypto_attempt_load_keys(libzfs_handle_t *, char *);
518 extern int zfs_crypto_load_key(zfs_handle_t *, boolean_t, char *);
519 extern int zfs_crypto_unload_key(zfs_handle_t *);
520 extern int zfs_crypto_rewrap(zfs_handle_t *, nvlist_t *, boolean_t);
522 typedef struct zprop_list {
525 struct zprop_list *pl_next;
528 size_t pl_recvd_width;
532 extern int zfs_expand_proplist(zfs_handle_t *, zprop_list_t **, boolean_t,
534 extern void zfs_prune_proplist(zfs_handle_t *, uint8_t *);
536 #define ZFS_MOUNTPOINT_NONE "none"
537 #define ZFS_MOUNTPOINT_LEGACY "legacy"
539 #define ZFS_FEATURE_DISABLED "disabled"
540 #define ZFS_FEATURE_ENABLED "enabled"
541 #define ZFS_FEATURE_ACTIVE "active"
543 #define ZFS_UNSUPPORTED_INACTIVE "inactive"
544 #define ZFS_UNSUPPORTED_READONLY "readonly"
547 * zpool property management
549 extern int zpool_expand_proplist(zpool_handle_t *, zprop_list_t **);
550 extern int zpool_prop_get_feature(zpool_handle_t *, const char *, char *,
552 extern const char *zpool_prop_default_string(zpool_prop_t);
553 extern uint64_t zpool_prop_default_numeric(zpool_prop_t);
554 extern const char *zpool_prop_column_name(zpool_prop_t);
555 extern boolean_t zpool_prop_align_right(zpool_prop_t);
558 * Functions shared by zfs and zpool property management.
560 extern int zprop_iter(zprop_func func, void *cb, boolean_t show_all,
561 boolean_t ordered, zfs_type_t type);
562 extern int zprop_get_list(libzfs_handle_t *, char *, zprop_list_t **,
564 extern void zprop_free_list(zprop_list_t *);
566 #define ZFS_GET_NCOLS 5
578 * Functions for printing zfs or zpool properties
580 typedef struct zprop_get_cbdata {
582 zfs_get_column_t cb_columns[ZFS_GET_NCOLS];
583 int cb_colwidths[ZFS_GET_NCOLS + 1];
584 boolean_t cb_scripted;
585 boolean_t cb_literal;
587 zprop_list_t *cb_proplist;
589 } zprop_get_cbdata_t;
591 void zprop_print_one_property(const char *, zprop_get_cbdata_t *,
592 const char *, const char *, zprop_source_t, const char *,
596 * Iterator functions.
598 typedef int (*zfs_iter_f)(zfs_handle_t *, void *);
599 extern int zfs_iter_root(libzfs_handle_t *, zfs_iter_f, void *);
600 extern int zfs_iter_children(zfs_handle_t *, zfs_iter_f, void *);
601 extern int zfs_iter_dependents(zfs_handle_t *, boolean_t, zfs_iter_f, void *);
602 extern int zfs_iter_filesystems(zfs_handle_t *, zfs_iter_f, void *);
603 extern int zfs_iter_snapshots(zfs_handle_t *, boolean_t, zfs_iter_f, void *);
604 extern int zfs_iter_snapshots_sorted(zfs_handle_t *, zfs_iter_f, void *);
605 extern int zfs_iter_snapspec(zfs_handle_t *, const char *, zfs_iter_f, void *);
606 extern int zfs_iter_bookmarks(zfs_handle_t *, zfs_iter_f, void *);
608 typedef struct get_all_cb {
609 zfs_handle_t **cb_handles;
612 boolean_t cb_verbose;
613 int (*cb_getone)(zfs_handle_t *, void *);
616 void libzfs_add_handle(get_all_cb_t *, zfs_handle_t *);
617 int libzfs_dataset_cmp(const void *, const void *);
620 * Functions to create and destroy datasets.
622 extern int zfs_create(libzfs_handle_t *, const char *, zfs_type_t,
624 extern int zfs_create_ancestors(libzfs_handle_t *, const char *);
625 extern int zfs_destroy(zfs_handle_t *, boolean_t);
626 extern int zfs_destroy_snaps(zfs_handle_t *, char *, boolean_t);
627 extern int zfs_destroy_snaps_nvl(libzfs_handle_t *, nvlist_t *, boolean_t);
628 extern int zfs_clone(zfs_handle_t *, const char *, nvlist_t *);
629 extern int zfs_snapshot(libzfs_handle_t *, const char *, boolean_t, nvlist_t *);
630 extern int zfs_snapshot_nvl(libzfs_handle_t *hdl, nvlist_t *snaps,
632 extern int zfs_rollback(zfs_handle_t *, zfs_handle_t *, boolean_t);
633 extern int zfs_rename(zfs_handle_t *, const char *, boolean_t, boolean_t);
635 typedef struct sendflags {
636 /* print informational messages (ie, -v was specified) */
639 /* recursive send (ie, -R) */
642 /* for incrementals, do all intermediate snapshots */
645 /* if dataset is a clone, do incremental from its origin */
646 boolean_t fromorigin;
648 /* do deduplication */
651 /* send properties (ie, -p) */
654 /* do not send (no-op, ie. -n) */
657 /* parsable verbose output (ie. -P) */
660 /* show progress (ie. -v) */
663 /* large blocks (>128K) are permitted */
664 boolean_t largeblock;
666 /* WRITE_EMBEDDED records of type DATA are permitted */
667 boolean_t embed_data;
669 /* compressed WRITE records are permitted */
672 /* raw encrypted records are permitted */
676 typedef boolean_t (snapfilter_cb_t)(zfs_handle_t *, void *);
678 extern int zfs_send(zfs_handle_t *, const char *, const char *,
679 sendflags_t *, int, snapfilter_cb_t, void *, nvlist_t **);
680 extern int zfs_send_one(zfs_handle_t *, const char *, int, enum lzc_send_flags);
681 extern int zfs_send_resume(libzfs_handle_t *, sendflags_t *, int outfd,
683 extern nvlist_t *zfs_send_resume_token_to_nvlist(libzfs_handle_t *hdl,
686 extern int zfs_promote(zfs_handle_t *);
687 extern int zfs_hold(zfs_handle_t *, const char *, const char *,
689 extern int zfs_hold_nvl(zfs_handle_t *, int, nvlist_t *);
690 extern int zfs_release(zfs_handle_t *, const char *, const char *, boolean_t);
691 extern int zfs_get_holds(zfs_handle_t *, nvlist_t **);
692 extern uint64_t zvol_volsize_to_reservation(uint64_t, nvlist_t *);
694 typedef int (*zfs_userspace_cb_t)(void *arg, const char *domain,
695 uid_t rid, uint64_t space);
697 extern int zfs_userspace(zfs_handle_t *, zfs_userquota_prop_t,
698 zfs_userspace_cb_t, void *);
700 extern int zfs_get_fsacl(zfs_handle_t *, nvlist_t **);
701 extern int zfs_set_fsacl(zfs_handle_t *, boolean_t, nvlist_t *);
703 typedef struct recvflags {
704 /* print informational messages (ie, -v was specified) */
707 /* the destination is a prefix, not the exact fs (ie, -d) */
711 * Only the tail of the sent snapshot path is appended to the
712 * destination to determine the received snapshot name (ie, -e).
716 /* do not actually do the recv, just check if it would work (ie, -n) */
719 /* rollback/destroy filesystems as necessary (eg, -F) */
722 /* set "canmount=off" on all modified filesystems */
723 boolean_t canmountoff;
726 * Mark the file systems as "resumable" and do not destroy them if the
727 * receive is interrupted
731 /* byteswap flag is used internally; callers need not specify */
734 /* do not mount file systems as they are extracted (private) */
738 extern int zfs_receive(libzfs_handle_t *, const char *, nvlist_t *,
739 recvflags_t *, int, avl_tree_t *);
741 typedef enum diff_flags {
742 ZFS_DIFF_PARSEABLE = 0x1,
743 ZFS_DIFF_TIMESTAMP = 0x2,
744 ZFS_DIFF_CLASSIFY = 0x4
747 extern int zfs_show_diffs(zfs_handle_t *, int, const char *, const char *,
751 * Miscellaneous functions.
753 extern const char *zfs_type_to_name(zfs_type_t);
754 extern void zfs_refresh_properties(zfs_handle_t *);
755 extern int zfs_name_valid(const char *, zfs_type_t);
756 extern zfs_handle_t *zfs_path_to_zhandle(libzfs_handle_t *, char *, zfs_type_t);
757 extern int zfs_parent_name(zfs_handle_t *, char *, size_t);
758 extern boolean_t zfs_dataset_exists(libzfs_handle_t *, const char *,
760 extern int zfs_spa_version(zfs_handle_t *, int *);
761 extern boolean_t zfs_bookmark_exists(const char *path);
762 extern int zfs_append_partition(char *path, size_t max_len);
763 extern int zfs_resolve_shortname(const char *name, char *path, size_t pathlen);
764 extern int zfs_strcmp_pathname(char *name, char *cmp_name, int wholedisk);
765 extern int zfs_path_order(char *path, int *order);
768 * Mount support functions.
770 extern boolean_t is_mounted(libzfs_handle_t *, const char *special, char **);
771 extern boolean_t zfs_is_mounted(zfs_handle_t *, char **);
772 extern int zfs_mount(zfs_handle_t *, const char *, int);
773 extern int zfs_unmount(zfs_handle_t *, const char *, int);
774 extern int zfs_unmountall(zfs_handle_t *, int);
777 * Share support functions.
779 extern boolean_t zfs_is_shared(zfs_handle_t *);
780 extern int zfs_share(zfs_handle_t *);
781 extern int zfs_unshare(zfs_handle_t *);
784 * Protocol-specific share support functions.
786 extern boolean_t zfs_is_shared_nfs(zfs_handle_t *, char **);
787 extern boolean_t zfs_is_shared_smb(zfs_handle_t *, char **);
788 extern int zfs_share_nfs(zfs_handle_t *);
789 extern int zfs_share_smb(zfs_handle_t *);
790 extern int zfs_shareall(zfs_handle_t *);
791 extern int zfs_unshare_nfs(zfs_handle_t *, const char *);
792 extern int zfs_unshare_smb(zfs_handle_t *, const char *);
793 extern int zfs_unshareall_nfs(zfs_handle_t *);
794 extern int zfs_unshareall_smb(zfs_handle_t *);
795 extern int zfs_unshareall_bypath(zfs_handle_t *, const char *);
796 extern int zfs_unshareall_bytype(zfs_handle_t *, const char *, const char *);
797 extern int zfs_unshareall(zfs_handle_t *);
798 extern int zfs_deleg_share_nfs(libzfs_handle_t *, char *, char *, char *,
799 void *, void *, int, zfs_share_op_t);
802 * Formats for iostat numbers. Examples: "12K", "30ms", "4B", "2321234", "-".
804 * ZFS_NICENUM_1024: Print kilo, mega, tera, peta, exa..
805 * ZFS_NICENUM_BYTES: Print single bytes ("13B"), kilo, mega, tera...
806 * ZFS_NICENUM_TIME: Print nanosecs, microsecs, millisecs, seconds...
807 * ZFS_NICENUM_RAW: Print the raw number without any formatting
808 * ZFS_NICENUM_RAWTIME: Same as RAW, but print dashes ('-') for zero.
810 enum zfs_nicenum_format {
811 ZFS_NICENUM_1024 = 0,
812 ZFS_NICENUM_BYTES = 1,
813 ZFS_NICENUM_TIME = 2,
815 ZFS_NICENUM_RAWTIME = 4
819 * Utility function to convert a number to a human-readable form.
821 extern void zfs_nicenum(uint64_t, char *, size_t);
822 extern void zfs_nicenum_format(uint64_t num, char *buf, size_t buflen,
823 enum zfs_nicenum_format type);
826 extern void zfs_nicetime(uint64_t, char *, size_t);
827 extern void zfs_nicebytes(uint64_t, char *, size_t);
828 extern int zfs_nicestrtonum(libzfs_handle_t *, const char *, uint64_t *);
831 * Utility functions to run an external process.
833 #define STDOUT_VERBOSE 0x01
834 #define STDERR_VERBOSE 0x02
835 #define NO_DEFAULT_PATH 0x04 /* Don't use $PATH to lookup the command */
837 int libzfs_run_process(const char *, char **, int flags);
838 int libzfs_run_process_get_stdout(const char *path, char *argv[], char *env[],
839 char **lines[], int *lines_cnt);
840 int libzfs_run_process_get_stdout_nopath(const char *path, char *argv[],
841 char *env[], char **lines[], int *lines_cnt);
843 void libzfs_free_str_array(char **strs, int count);
845 int libzfs_envvar_is_set(char *envvar);
848 * Given a device or file, determine if it is part of a pool.
850 extern int zpool_in_use(libzfs_handle_t *, int, pool_state_t *, char **,
854 * Label manipulation.
856 extern int zpool_read_label(int, nvlist_t **, int *);
857 extern int zpool_clear_label(int);
860 * Management interfaces for SMB ACL files
863 int zfs_smb_acl_add(libzfs_handle_t *, char *, char *, char *);
864 int zfs_smb_acl_remove(libzfs_handle_t *, char *, char *, char *);
865 int zfs_smb_acl_purge(libzfs_handle_t *, char *, char *);
866 int zfs_smb_acl_rename(libzfs_handle_t *, char *, char *, char *, char *);
869 * Enable and disable datasets within a pool by mounting/unmounting and
870 * sharing/unsharing them.
872 extern int zpool_enable_datasets(zpool_handle_t *, const char *, int);
873 extern int zpool_disable_datasets(zpool_handle_t *, boolean_t);
876 * Mappings between vdev and FRU.
878 extern void libzfs_fru_refresh(libzfs_handle_t *);
879 extern const char *libzfs_fru_lookup(libzfs_handle_t *, const char *);
880 extern const char *libzfs_fru_devpath(libzfs_handle_t *, const char *);
881 extern boolean_t libzfs_fru_compare(libzfs_handle_t *, const char *,
883 extern boolean_t libzfs_fru_notself(libzfs_handle_t *, const char *);
884 extern int zpool_fru_set(zpool_handle_t *, uint64_t, const char *);
887 * Support for Linux libudev derived persistent device strings
889 extern boolean_t is_mpath_whole_disk(const char *);
890 extern void update_vdev_config_dev_strs(nvlist_t *);
891 extern char *zfs_strip_partition(char *);
892 extern char *zfs_strip_partition_path(char *);
897 extern boolean_t udev_is_mpath(struct udev_device *dev);
898 extern int zfs_device_get_devid(struct udev_device *, char *, size_t);
899 extern int zfs_device_get_physical(struct udev_device *, char *, size_t);
906 #endif /* _LIBZFS_H */