xref: /illumos-gate/usr/src/lib/libzfs/common/libzfs.h (revision 681d9761e8516a7dc5ab6589e2dfe717777e1123)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef	_LIBZFS_H
28 #define	_LIBZFS_H
29 
30 #include <assert.h>
31 #include <libnvpair.h>
32 #include <sys/mnttab.h>
33 #include <sys/param.h>
34 #include <sys/types.h>
35 #include <sys/varargs.h>
36 #include <sys/fs/zfs.h>
37 #include <sys/avl.h>
38 #include <ucred.h>
39 
40 #ifdef	__cplusplus
41 extern "C" {
42 #endif
43 
44 /*
45  * Miscellaneous ZFS constants
46  */
47 #define	ZFS_MAXNAMELEN		MAXNAMELEN
48 #define	ZPOOL_MAXNAMELEN	MAXNAMELEN
49 #define	ZFS_MAXPROPLEN		MAXPATHLEN
50 #define	ZPOOL_MAXPROPLEN	MAXPATHLEN
51 
52 /*
53  * libzfs errors
54  */
55 enum {
56 	EZFS_NOMEM = 2000,	/* out of memory */
57 	EZFS_BADPROP,		/* invalid property value */
58 	EZFS_PROPREADONLY,	/* cannot set readonly property */
59 	EZFS_PROPTYPE,		/* property does not apply to dataset type */
60 	EZFS_PROPNONINHERIT,	/* property is not inheritable */
61 	EZFS_PROPSPACE,		/* bad quota or reservation */
62 	EZFS_BADTYPE,		/* dataset is not of appropriate type */
63 	EZFS_BUSY,		/* pool or dataset is busy */
64 	EZFS_EXISTS,		/* pool or dataset already exists */
65 	EZFS_NOENT,		/* no such pool or dataset */
66 	EZFS_BADSTREAM,		/* bad backup stream */
67 	EZFS_DSREADONLY,	/* dataset is readonly */
68 	EZFS_VOLTOOBIG,		/* volume is too large for 32-bit system */
69 	EZFS_INVALIDNAME,	/* invalid dataset name */
70 	EZFS_BADRESTORE,	/* unable to restore to destination */
71 	EZFS_BADBACKUP,		/* backup failed */
72 	EZFS_BADTARGET,		/* bad attach/detach/replace target */
73 	EZFS_NODEVICE,		/* no such device in pool */
74 	EZFS_BADDEV,		/* invalid device to add */
75 	EZFS_NOREPLICAS,	/* no valid replicas */
76 	EZFS_RESILVERING,	/* currently resilvering */
77 	EZFS_BADVERSION,	/* unsupported version */
78 	EZFS_POOLUNAVAIL,	/* pool is currently unavailable */
79 	EZFS_DEVOVERFLOW,	/* too many devices in one vdev */
80 	EZFS_BADPATH,		/* must be an absolute path */
81 	EZFS_CROSSTARGET,	/* rename or clone across pool or dataset */
82 	EZFS_ZONED,		/* used improperly in local zone */
83 	EZFS_MOUNTFAILED,	/* failed to mount dataset */
84 	EZFS_UMOUNTFAILED,	/* failed to unmount dataset */
85 	EZFS_UNSHARENFSFAILED,	/* unshare(1M) failed */
86 	EZFS_SHARENFSFAILED,	/* share(1M) failed */
87 	EZFS_PERM,		/* permission denied */
88 	EZFS_NOSPC,		/* out of space */
89 	EZFS_IO,		/* I/O error */
90 	EZFS_INTR,		/* signal received */
91 	EZFS_ISSPARE,		/* device is a hot spare */
92 	EZFS_INVALCONFIG,	/* invalid vdev configuration */
93 	EZFS_RECURSIVE,		/* recursive dependency */
94 	EZFS_NOHISTORY,		/* no history object */
95 	EZFS_UNSHAREISCSIFAILED, /* iscsitgtd failed request to unshare */
96 	EZFS_SHAREISCSIFAILED,	/* iscsitgtd failed request to share */
97 	EZFS_POOLPROPS,		/* couldn't retrieve pool props */
98 	EZFS_POOL_NOTSUP,	/* ops not supported for this type of pool */
99 	EZFS_POOL_INVALARG,	/* invalid argument for this pool operation */
100 	EZFS_NAMETOOLONG,	/* dataset name is too long */
101 	EZFS_OPENFAILED,	/* open of device failed */
102 	EZFS_NOCAP,		/* couldn't get capacity */
103 	EZFS_LABELFAILED,	/* write of label failed */
104 	EZFS_ISCSISVCUNAVAIL,	/* iscsi service unavailable */
105 	EZFS_BADWHO,		/* invalid permission who */
106 	EZFS_BADPERM,		/* invalid permission */
107 	EZFS_BADPERMSET,	/* invalid permission set name */
108 	EZFS_NODELEGATION,	/* delegated administration is disabled */
109 	EZFS_PERMRDONLY,	/* pemissions are readonly */
110 	EZFS_UNSHARESMBFAILED,	/* failed to unshare over smb */
111 	EZFS_SHARESMBFAILED,	/* failed to share over smb */
112 	EZFS_BADCACHE,		/* bad cache file */
113 	EZFS_ISL2CACHE,		/* device is for the level 2 ARC */
114 	EZFS_VDEVNOTSUP,	/* unsupported vdev type */
115 	EZFS_NOTSUP,		/* ops not supported on this dataset */
116 	EZFS_ACTIVE_SPARE,	/* pool has active shared spare devices */
117 	EZFS_UNPLAYED_LOGS,	/* log device has unplayed logs */
118 	EZFS_REFTAG_RELE,	/* snapshot release: tag not found */
119 	EZFS_REFTAG_HOLD,	/* snapshot hold: tag already exists */
120 	EZFS_TAGTOOLONG,	/* snapshot hold/rele: tag too long */
121 	EZFS_UNKNOWN
122 };
123 
124 /*
125  * The following data structures are all part
126  * of the zfs_allow_t data structure which is
127  * used for printing 'allow' permissions.
128  * It is a linked list of zfs_allow_t's which
129  * then contain avl tree's for user/group/sets/...
130  * and each one of the entries in those trees have
131  * avl tree's for the permissions they belong to and
132  * whether they are local,descendent or local+descendent
133  * permissions.  The AVL trees are used primarily for
134  * sorting purposes, but also so that we can quickly find
135  * a given user and or permission.
136  */
137 typedef struct zfs_perm_node {
138 	avl_node_t z_node;
139 	char z_pname[MAXPATHLEN];
140 } zfs_perm_node_t;
141 
142 typedef struct zfs_allow_node {
143 	avl_node_t z_node;
144 	char z_key[MAXPATHLEN];		/* name, such as joe */
145 	avl_tree_t z_localdescend;	/* local+descendent perms */
146 	avl_tree_t z_local;		/* local permissions */
147 	avl_tree_t z_descend;		/* descendent permissions */
148 } zfs_allow_node_t;
149 
150 typedef struct zfs_allow {
151 	struct zfs_allow *z_next;
152 	char z_setpoint[MAXPATHLEN];
153 	avl_tree_t z_sets;
154 	avl_tree_t z_crperms;
155 	avl_tree_t z_user;
156 	avl_tree_t z_group;
157 	avl_tree_t z_everyone;
158 } zfs_allow_t;
159 
160 /*
161  * Basic handle types
162  */
163 typedef struct zfs_handle zfs_handle_t;
164 typedef struct zpool_handle zpool_handle_t;
165 typedef struct libzfs_handle libzfs_handle_t;
166 
167 /*
168  * Library initialization
169  */
170 extern libzfs_handle_t *libzfs_init(void);
171 extern void libzfs_fini(libzfs_handle_t *);
172 
173 extern libzfs_handle_t *zpool_get_handle(zpool_handle_t *);
174 extern libzfs_handle_t *zfs_get_handle(zfs_handle_t *);
175 
176 extern void libzfs_print_on_error(libzfs_handle_t *, boolean_t);
177 
178 extern int libzfs_errno(libzfs_handle_t *);
179 extern const char *libzfs_error_action(libzfs_handle_t *);
180 extern const char *libzfs_error_description(libzfs_handle_t *);
181 extern void libzfs_mnttab_init(libzfs_handle_t *);
182 extern void libzfs_mnttab_fini(libzfs_handle_t *);
183 extern void libzfs_mnttab_cache(libzfs_handle_t *, boolean_t);
184 extern int libzfs_mnttab_find(libzfs_handle_t *, const char *,
185     struct mnttab *);
186 extern void libzfs_mnttab_add(libzfs_handle_t *, const char *,
187     const char *, const char *);
188 extern void libzfs_mnttab_remove(libzfs_handle_t *, const char *);
189 
190 /*
191  * Basic handle functions
192  */
193 extern zpool_handle_t *zpool_open(libzfs_handle_t *, const char *);
194 extern zpool_handle_t *zpool_open_canfail(libzfs_handle_t *, const char *);
195 extern void zpool_close(zpool_handle_t *);
196 extern const char *zpool_get_name(zpool_handle_t *);
197 extern int zpool_get_state(zpool_handle_t *);
198 extern char *zpool_state_to_name(vdev_state_t, vdev_aux_t);
199 extern void zpool_free_handles(libzfs_handle_t *);
200 
201 /*
202  * Iterate over all active pools in the system.
203  */
204 typedef int (*zpool_iter_f)(zpool_handle_t *, void *);
205 extern int zpool_iter(libzfs_handle_t *, zpool_iter_f, void *);
206 
207 /*
208  * Functions to create and destroy pools
209  */
210 extern int zpool_create(libzfs_handle_t *, const char *, nvlist_t *,
211     nvlist_t *, nvlist_t *);
212 extern int zpool_destroy(zpool_handle_t *);
213 extern int zpool_add(zpool_handle_t *, nvlist_t *);
214 
215 /*
216  * Functions to manipulate pool and vdev state
217  */
218 extern int zpool_scrub(zpool_handle_t *, pool_scrub_type_t);
219 extern int zpool_clear(zpool_handle_t *, const char *);
220 
221 extern int zpool_vdev_online(zpool_handle_t *, const char *, int,
222     vdev_state_t *);
223 extern int zpool_vdev_offline(zpool_handle_t *, const char *, boolean_t);
224 extern int zpool_vdev_attach(zpool_handle_t *, const char *,
225     const char *, nvlist_t *, int);
226 extern int zpool_vdev_detach(zpool_handle_t *, const char *);
227 extern int zpool_vdev_remove(zpool_handle_t *, const char *);
228 
229 extern int zpool_vdev_fault(zpool_handle_t *, uint64_t);
230 extern int zpool_vdev_degrade(zpool_handle_t *, uint64_t);
231 extern int zpool_vdev_clear(zpool_handle_t *, uint64_t);
232 
233 extern nvlist_t *zpool_find_vdev(zpool_handle_t *, const char *, boolean_t *,
234     boolean_t *, boolean_t *);
235 extern nvlist_t *zpool_find_vdev_by_physpath(zpool_handle_t *, const char *,
236     boolean_t *, boolean_t *, boolean_t *);
237 extern int zpool_label_disk(libzfs_handle_t *, zpool_handle_t *, char *);
238 
239 /*
240  * Functions to manage pool properties
241  */
242 extern int zpool_set_prop(zpool_handle_t *, const char *, const char *);
243 extern int zpool_get_prop(zpool_handle_t *, zpool_prop_t, char *,
244     size_t proplen, zprop_source_t *);
245 extern uint64_t zpool_get_prop_int(zpool_handle_t *, zpool_prop_t,
246     zprop_source_t *);
247 
248 extern const char *zpool_prop_to_name(zpool_prop_t);
249 extern const char *zpool_prop_values(zpool_prop_t);
250 
251 /*
252  * Pool health statistics.
253  */
254 typedef enum {
255 	/*
256 	 * The following correspond to faults as defined in the (fault.fs.zfs.*)
257 	 * event namespace.  Each is associated with a corresponding message ID.
258 	 */
259 	ZPOOL_STATUS_CORRUPT_CACHE,	/* corrupt /kernel/drv/zpool.cache */
260 	ZPOOL_STATUS_MISSING_DEV_R,	/* missing device with replicas */
261 	ZPOOL_STATUS_MISSING_DEV_NR,	/* missing device with no replicas */
262 	ZPOOL_STATUS_CORRUPT_LABEL_R,	/* bad device label with replicas */
263 	ZPOOL_STATUS_CORRUPT_LABEL_NR,	/* bad device label with no replicas */
264 	ZPOOL_STATUS_BAD_GUID_SUM,	/* sum of device guids didn't match */
265 	ZPOOL_STATUS_CORRUPT_POOL,	/* pool metadata is corrupted */
266 	ZPOOL_STATUS_CORRUPT_DATA,	/* data errors in user (meta)data */
267 	ZPOOL_STATUS_FAILING_DEV,	/* device experiencing errors */
268 	ZPOOL_STATUS_VERSION_NEWER,	/* newer on-disk version */
269 	ZPOOL_STATUS_HOSTID_MISMATCH,	/* last accessed by another system */
270 	ZPOOL_STATUS_IO_FAILURE_WAIT,	/* failed I/O, failmode 'wait' */
271 	ZPOOL_STATUS_IO_FAILURE_CONTINUE, /* failed I/O, failmode 'continue' */
272 	ZPOOL_STATUS_BAD_LOG,		/* cannot read log chain(s) */
273 
274 	/*
275 	 * These faults have no corresponding message ID.  At the time we are
276 	 * checking the status, the original reason for the FMA fault (I/O or
277 	 * checksum errors) has been lost.
278 	 */
279 	ZPOOL_STATUS_FAULTED_DEV_R,	/* faulted device with replicas */
280 	ZPOOL_STATUS_FAULTED_DEV_NR,	/* faulted device with no replicas */
281 
282 	/*
283 	 * The following are not faults per se, but still an error possibly
284 	 * requiring administrative attention.  There is no corresponding
285 	 * message ID.
286 	 */
287 	ZPOOL_STATUS_VERSION_OLDER,	/* older on-disk version */
288 	ZPOOL_STATUS_RESILVERING,	/* device being resilvered */
289 	ZPOOL_STATUS_OFFLINE_DEV,	/* device online */
290 	ZPOOL_STATUS_REMOVED_DEV,	/* removed device */
291 
292 	/*
293 	 * Finally, the following indicates a healthy pool.
294 	 */
295 	ZPOOL_STATUS_OK
296 } zpool_status_t;
297 
298 extern zpool_status_t zpool_get_status(zpool_handle_t *, char **);
299 extern zpool_status_t zpool_import_status(nvlist_t *, char **);
300 
301 /*
302  * Statistics and configuration functions.
303  */
304 extern nvlist_t *zpool_get_config(zpool_handle_t *, nvlist_t **);
305 extern int zpool_refresh_stats(zpool_handle_t *, boolean_t *);
306 extern int zpool_get_errlog(zpool_handle_t *, nvlist_t **);
307 
308 /*
309  * Import and export functions
310  */
311 extern int zpool_export(zpool_handle_t *, boolean_t);
312 extern int zpool_export_force(zpool_handle_t *);
313 extern int zpool_import(libzfs_handle_t *, nvlist_t *, const char *,
314     char *altroot);
315 extern int zpool_import_props(libzfs_handle_t *, nvlist_t *, const char *,
316     nvlist_t *, boolean_t);
317 
318 /*
319  * Search for pools to import
320  */
321 extern nvlist_t *zpool_find_import(libzfs_handle_t *, int, char **);
322 extern nvlist_t *zpool_find_import_cached(libzfs_handle_t *, const char *,
323     char *, uint64_t);
324 extern nvlist_t *zpool_find_import_byname(libzfs_handle_t *, int, char **,
325     char *);
326 extern nvlist_t *zpool_find_import_byguid(libzfs_handle_t *, int, char **,
327     uint64_t);
328 extern nvlist_t *zpool_find_import_activeok(libzfs_handle_t *, int, char **);
329 
330 /*
331  * Miscellaneous pool functions
332  */
333 struct zfs_cmd;
334 
335 extern char *zpool_vdev_name(libzfs_handle_t *, zpool_handle_t *, nvlist_t *);
336 extern int zpool_upgrade(zpool_handle_t *, uint64_t);
337 extern int zpool_get_history(zpool_handle_t *, nvlist_t **);
338 extern void zpool_set_history_str(const char *subcommand, int argc,
339     char **argv, char *history_str);
340 extern int zpool_stage_history(libzfs_handle_t *, const char *);
341 extern void zpool_obj_to_path(zpool_handle_t *, uint64_t, uint64_t, char *,
342     size_t len);
343 extern int zfs_ioctl(libzfs_handle_t *, int, struct zfs_cmd *);
344 extern int zpool_get_physpath(zpool_handle_t *, char *, size_t);
345 
346 /*
347  * Basic handle manipulations.  These functions do not create or destroy the
348  * underlying datasets, only the references to them.
349  */
350 extern zfs_handle_t *zfs_open(libzfs_handle_t *, const char *, int);
351 extern void zfs_close(zfs_handle_t *);
352 extern zfs_type_t zfs_get_type(const zfs_handle_t *);
353 extern const char *zfs_get_name(const zfs_handle_t *);
354 extern zpool_handle_t *zfs_get_pool_handle(const zfs_handle_t *);
355 
356 /*
357  * Property management functions.  Some functions are shared with the kernel,
358  * and are found in sys/fs/zfs.h.
359  */
360 
361 /*
362  * zfs dataset property management
363  */
364 extern const char *zfs_prop_default_string(zfs_prop_t);
365 extern uint64_t zfs_prop_default_numeric(zfs_prop_t);
366 extern const char *zfs_prop_column_name(zfs_prop_t);
367 extern boolean_t zfs_prop_align_right(zfs_prop_t);
368 
369 extern nvlist_t *zfs_valid_proplist(libzfs_handle_t *, zfs_type_t,
370     nvlist_t *, uint64_t, zfs_handle_t *, const char *);
371 
372 extern const char *zfs_prop_to_name(zfs_prop_t);
373 extern int zfs_prop_set(zfs_handle_t *, const char *, const char *);
374 extern int zfs_prop_get(zfs_handle_t *, zfs_prop_t, char *, size_t,
375     zprop_source_t *, char *, size_t, boolean_t);
376 extern int zfs_prop_get_numeric(zfs_handle_t *, zfs_prop_t, uint64_t *,
377     zprop_source_t *, char *, size_t);
378 extern int zfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname,
379     uint64_t *propvalue);
380 extern int zfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname,
381     char *propbuf, int proplen, boolean_t literal);
382 extern uint64_t zfs_prop_get_int(zfs_handle_t *, zfs_prop_t);
383 extern int zfs_prop_inherit(zfs_handle_t *, const char *);
384 extern const char *zfs_prop_values(zfs_prop_t);
385 extern int zfs_prop_is_string(zfs_prop_t prop);
386 extern nvlist_t *zfs_get_user_props(zfs_handle_t *);
387 
388 typedef struct zprop_list {
389 	int		pl_prop;
390 	char		*pl_user_prop;
391 	struct zprop_list *pl_next;
392 	boolean_t	pl_all;
393 	size_t		pl_width;
394 	boolean_t	pl_fixed;
395 } zprop_list_t;
396 
397 extern int zfs_expand_proplist(zfs_handle_t *, zprop_list_t **);
398 extern void zfs_prune_proplist(zfs_handle_t *, uint8_t *);
399 
400 #define	ZFS_MOUNTPOINT_NONE	"none"
401 #define	ZFS_MOUNTPOINT_LEGACY	"legacy"
402 
403 /*
404  * zpool property management
405  */
406 extern int zpool_expand_proplist(zpool_handle_t *, zprop_list_t **);
407 extern const char *zpool_prop_default_string(zpool_prop_t);
408 extern uint64_t zpool_prop_default_numeric(zpool_prop_t);
409 extern const char *zpool_prop_column_name(zpool_prop_t);
410 extern boolean_t zpool_prop_align_right(zpool_prop_t);
411 
412 /*
413  * Functions shared by zfs and zpool property management.
414  */
415 extern int zprop_iter(zprop_func func, void *cb, boolean_t show_all,
416     boolean_t ordered, zfs_type_t type);
417 extern int zprop_get_list(libzfs_handle_t *, char *, zprop_list_t **,
418     zfs_type_t);
419 extern void zprop_free_list(zprop_list_t *);
420 
421 /*
422  * Functions for printing zfs or zpool properties
423  */
424 typedef struct zprop_get_cbdata {
425 	int cb_sources;
426 	int cb_columns[4];
427 	int cb_colwidths[5];
428 	boolean_t cb_scripted;
429 	boolean_t cb_literal;
430 	boolean_t cb_first;
431 	zprop_list_t *cb_proplist;
432 	zfs_type_t cb_type;
433 } zprop_get_cbdata_t;
434 
435 void zprop_print_one_property(const char *, zprop_get_cbdata_t *,
436     const char *, const char *, zprop_source_t, const char *);
437 
438 #define	GET_COL_NAME		1
439 #define	GET_COL_PROPERTY	2
440 #define	GET_COL_VALUE		3
441 #define	GET_COL_SOURCE		4
442 
443 /*
444  * Iterator functions.
445  */
446 typedef int (*zfs_iter_f)(zfs_handle_t *, void *);
447 extern int zfs_iter_root(libzfs_handle_t *, zfs_iter_f, void *);
448 extern int zfs_iter_children(zfs_handle_t *, zfs_iter_f, void *);
449 extern int zfs_iter_dependents(zfs_handle_t *, boolean_t, zfs_iter_f, void *);
450 extern int zfs_iter_filesystems(zfs_handle_t *, zfs_iter_f, void *);
451 extern int zfs_iter_snapshots(zfs_handle_t *, zfs_iter_f, void *);
452 extern int zfs_iter_snapshots_sorted(zfs_handle_t *, zfs_iter_f, void *);
453 
454 /*
455  * Functions to create and destroy datasets.
456  */
457 extern int zfs_create(libzfs_handle_t *, const char *, zfs_type_t,
458     nvlist_t *);
459 extern int zfs_create_ancestors(libzfs_handle_t *, const char *);
460 extern int zfs_destroy(zfs_handle_t *, boolean_t);
461 extern int zfs_destroy_snaps(zfs_handle_t *, char *, boolean_t);
462 extern int zfs_clone(zfs_handle_t *, const char *, nvlist_t *);
463 extern int zfs_snapshot(libzfs_handle_t *, const char *, boolean_t, nvlist_t *);
464 extern int zfs_rollback(zfs_handle_t *, zfs_handle_t *, boolean_t);
465 extern int zfs_rename(zfs_handle_t *, const char *, boolean_t);
466 extern int zfs_send(zfs_handle_t *, const char *, const char *,
467     boolean_t, boolean_t, boolean_t, boolean_t, int);
468 extern int zfs_promote(zfs_handle_t *);
469 extern int zfs_hold(zfs_handle_t *, const char *, const char *, boolean_t,
470     boolean_t);
471 extern int zfs_hold_range(zfs_handle_t *, const char *, const char *,
472     const char *, boolean_t);
473 extern int zfs_release(zfs_handle_t *, const char *, const char *, boolean_t);
474 extern int zfs_release_range(zfs_handle_t *, const char *, const char *,
475     const char *);
476 
477 typedef int (*zfs_userspace_cb_t)(void *arg, const char *domain,
478     uid_t rid, uint64_t space);
479 
480 extern int zfs_userspace(zfs_handle_t *zhp, zfs_userquota_prop_t type,
481     zfs_userspace_cb_t func, void *arg);
482 
483 typedef struct recvflags {
484 	/* print informational messages (ie, -v was specified) */
485 	int verbose : 1;
486 
487 	/* the destination is a prefix, not the exact fs (ie, -d) */
488 	int isprefix : 1;
489 
490 	/* do not actually do the recv, just check if it would work (ie, -n) */
491 	int dryrun : 1;
492 
493 	/* rollback/destroy filesystems as necessary (eg, -F) */
494 	int force : 1;
495 
496 	/* set "canmount=off" on all modified filesystems */
497 	int canmountoff : 1;
498 
499 	/* byteswap flag is used internally; callers need not specify */
500 	int byteswap : 1;
501 
502 	/* do not mount file systems as they are extracted (private) */
503 	int nomount : 1;
504 } recvflags_t;
505 
506 extern int zfs_receive(libzfs_handle_t *, const char *, recvflags_t,
507     int, avl_tree_t *);
508 
509 /*
510  * Miscellaneous functions.
511  */
512 extern const char *zfs_type_to_name(zfs_type_t);
513 extern void zfs_refresh_properties(zfs_handle_t *);
514 extern int zfs_name_valid(const char *, zfs_type_t);
515 extern zfs_handle_t *zfs_path_to_zhandle(libzfs_handle_t *, char *, zfs_type_t);
516 extern boolean_t zfs_dataset_exists(libzfs_handle_t *, const char *,
517     zfs_type_t);
518 extern int zfs_spa_version(zfs_handle_t *, int *);
519 
520 /*
521  * Mount support functions.
522  */
523 extern boolean_t is_mounted(libzfs_handle_t *, const char *special, char **);
524 extern boolean_t zfs_is_mounted(zfs_handle_t *, char **);
525 extern int zfs_mount(zfs_handle_t *, const char *, int);
526 extern int zfs_unmount(zfs_handle_t *, const char *, int);
527 extern int zfs_unmountall(zfs_handle_t *, int);
528 
529 /*
530  * Share support functions.
531  */
532 extern boolean_t zfs_is_shared(zfs_handle_t *);
533 extern int zfs_share(zfs_handle_t *);
534 extern int zfs_unshare(zfs_handle_t *);
535 
536 /*
537  * Protocol-specific share support functions.
538  */
539 extern boolean_t zfs_is_shared_nfs(zfs_handle_t *, char **);
540 extern boolean_t zfs_is_shared_smb(zfs_handle_t *, char **);
541 extern int zfs_share_nfs(zfs_handle_t *);
542 extern int zfs_share_smb(zfs_handle_t *);
543 extern int zfs_shareall(zfs_handle_t *);
544 extern int zfs_unshare_nfs(zfs_handle_t *, const char *);
545 extern int zfs_unshare_smb(zfs_handle_t *, const char *);
546 extern int zfs_unshareall_nfs(zfs_handle_t *);
547 extern int zfs_unshareall_smb(zfs_handle_t *);
548 extern int zfs_unshareall_bypath(zfs_handle_t *, const char *);
549 extern int zfs_unshareall(zfs_handle_t *);
550 extern boolean_t zfs_is_shared_iscsi(zfs_handle_t *);
551 extern int zfs_share_iscsi(zfs_handle_t *);
552 extern int zfs_unshare_iscsi(zfs_handle_t *);
553 extern int zfs_iscsi_perm_check(libzfs_handle_t *, char *, ucred_t *);
554 extern int zfs_deleg_share_nfs(libzfs_handle_t *, char *, char *, char *,
555     void *, void *, int, zfs_share_op_t);
556 
557 /*
558  * When dealing with nvlists, verify() is extremely useful
559  */
560 #ifdef NDEBUG
561 #define	verify(EX)	((void)(EX))
562 #else
563 #define	verify(EX)	assert(EX)
564 #endif
565 
566 /*
567  * Utility function to convert a number to a human-readable form.
568  */
569 extern void zfs_nicenum(uint64_t, char *, size_t);
570 extern int zfs_nicestrtonum(libzfs_handle_t *, const char *, uint64_t *);
571 
572 /*
573  * Given a device or file, determine if it is part of a pool.
574  */
575 extern int zpool_in_use(libzfs_handle_t *, int, pool_state_t *, char **,
576     boolean_t *);
577 
578 /*
579  * ftyp special.  Read the label from a given device.
580  */
581 extern int zpool_read_label(int, nvlist_t **);
582 
583 /* is this zvol valid for use as a dump device? */
584 extern int zvol_check_dump_config(char *);
585 
586 /*
587  * Management interfaces for SMB ACL files
588  */
589 
590 int zfs_smb_acl_add(libzfs_handle_t *, char *, char *, char *);
591 int zfs_smb_acl_remove(libzfs_handle_t *, char *, char *, char *);
592 int zfs_smb_acl_purge(libzfs_handle_t *, char *, char *);
593 int zfs_smb_acl_rename(libzfs_handle_t *, char *, char *, char *, char *);
594 
595 /*
596  * Enable and disable datasets within a pool by mounting/unmounting and
597  * sharing/unsharing them.
598  */
599 extern int zpool_enable_datasets(zpool_handle_t *, const char *, int);
600 extern int zpool_disable_datasets(zpool_handle_t *, boolean_t);
601 
602 #ifdef	__cplusplus
603 }
604 #endif
605 
606 #endif	/* _LIBZFS_H */
607