xref: /titanic_52/usr/src/lib/libzfs/common/libzfs.h (revision c2b09db8b5b01162dadf9205ddd83ccf4f7d5535)
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 (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 2013 Nexenta Systems, Inc.  All rights reserved.
28  */
29 
30 #ifndef	_LIBZFS_H
31 #define	_LIBZFS_H
32 
33 #include <assert.h>
34 #include <libnvpair.h>
35 #include <sys/mnttab.h>
36 #include <sys/param.h>
37 #include <sys/types.h>
38 #include <sys/varargs.h>
39 #include <sys/fs/zfs.h>
40 #include <sys/avl.h>
41 #include <ucred.h>
42 #include <libzfs_core.h>
43 
44 #ifdef	__cplusplus
45 extern "C" {
46 #endif
47 
48 /*
49  * Miscellaneous ZFS constants
50  */
51 #define	ZFS_MAXNAMELEN		MAXNAMELEN
52 #define	ZPOOL_MAXNAMELEN	MAXNAMELEN
53 #define	ZFS_MAXPROPLEN		MAXPATHLEN
54 #define	ZPOOL_MAXPROPLEN	MAXPATHLEN
55 
56 /*
57  * libzfs errors
58  */
59 typedef enum zfs_error {
60 	EZFS_SUCCESS = 0,	/* no error -- success */
61 	EZFS_NOMEM = 2000,	/* out of memory */
62 	EZFS_BADPROP,		/* invalid property value */
63 	EZFS_PROPREADONLY,	/* cannot set readonly property */
64 	EZFS_PROPTYPE,		/* property does not apply to dataset type */
65 	EZFS_PROPNONINHERIT,	/* property is not inheritable */
66 	EZFS_PROPSPACE,		/* bad quota or reservation */
67 	EZFS_BADTYPE,		/* dataset is not of appropriate type */
68 	EZFS_BUSY,		/* pool or dataset is busy */
69 	EZFS_EXISTS,		/* pool or dataset already exists */
70 	EZFS_NOENT,		/* no such pool or dataset */
71 	EZFS_BADSTREAM,		/* bad backup stream */
72 	EZFS_DSREADONLY,	/* dataset is readonly */
73 	EZFS_VOLTOOBIG,		/* volume is too large for 32-bit system */
74 	EZFS_INVALIDNAME,	/* invalid dataset name */
75 	EZFS_BADRESTORE,	/* unable to restore to destination */
76 	EZFS_BADBACKUP,		/* backup failed */
77 	EZFS_BADTARGET,		/* bad attach/detach/replace target */
78 	EZFS_NODEVICE,		/* no such device in pool */
79 	EZFS_BADDEV,		/* invalid device to add */
80 	EZFS_NOREPLICAS,	/* no valid replicas */
81 	EZFS_RESILVERING,	/* currently resilvering */
82 	EZFS_BADVERSION,	/* unsupported version */
83 	EZFS_POOLUNAVAIL,	/* pool is currently unavailable */
84 	EZFS_DEVOVERFLOW,	/* too many devices in one vdev */
85 	EZFS_BADPATH,		/* must be an absolute path */
86 	EZFS_CROSSTARGET,	/* rename or clone across pool or dataset */
87 	EZFS_ZONED,		/* used improperly in local zone */
88 	EZFS_MOUNTFAILED,	/* failed to mount dataset */
89 	EZFS_UMOUNTFAILED,	/* failed to unmount dataset */
90 	EZFS_UNSHARENFSFAILED,	/* unshare(1M) failed */
91 	EZFS_SHARENFSFAILED,	/* share(1M) failed */
92 	EZFS_PERM,		/* permission denied */
93 	EZFS_NOSPC,		/* out of space */
94 	EZFS_FAULT,		/* bad address */
95 	EZFS_IO,		/* I/O error */
96 	EZFS_INTR,		/* signal received */
97 	EZFS_ISSPARE,		/* device is a hot spare */
98 	EZFS_INVALCONFIG,	/* invalid vdev configuration */
99 	EZFS_RECURSIVE,		/* recursive dependency */
100 	EZFS_NOHISTORY,		/* no history object */
101 	EZFS_POOLPROPS,		/* couldn't retrieve pool props */
102 	EZFS_POOL_NOTSUP,	/* ops not supported for this type of pool */
103 	EZFS_POOL_INVALARG,	/* invalid argument for this pool operation */
104 	EZFS_NAMETOOLONG,	/* dataset name is too long */
105 	EZFS_OPENFAILED,	/* open of device failed */
106 	EZFS_NOCAP,		/* couldn't get capacity */
107 	EZFS_LABELFAILED,	/* write of label failed */
108 	EZFS_BADWHO,		/* invalid permission who */
109 	EZFS_BADPERM,		/* invalid permission */
110 	EZFS_BADPERMSET,	/* invalid permission set name */
111 	EZFS_NODELEGATION,	/* delegated administration is disabled */
112 	EZFS_UNSHARESMBFAILED,	/* failed to unshare over smb */
113 	EZFS_SHARESMBFAILED,	/* failed to share over smb */
114 	EZFS_BADCACHE,		/* bad cache file */
115 	EZFS_ISL2CACHE,		/* device is for the level 2 ARC */
116 	EZFS_VDEVNOTSUP,	/* unsupported vdev type */
117 	EZFS_NOTSUP,		/* ops not supported on this dataset */
118 	EZFS_ACTIVE_SPARE,	/* pool has active shared spare devices */
119 	EZFS_UNPLAYED_LOGS,	/* log device has unplayed logs */
120 	EZFS_REFTAG_RELE,	/* snapshot release: tag not found */
121 	EZFS_REFTAG_HOLD,	/* snapshot hold: tag already exists */
122 	EZFS_TAGTOOLONG,	/* snapshot hold/rele: tag too long */
123 	EZFS_PIPEFAILED,	/* pipe create failed */
124 	EZFS_THREADCREATEFAILED, /* thread create failed */
125 	EZFS_POSTSPLIT_ONLINE,	/* onlining a disk after splitting it */
126 	EZFS_SCRUBBING,		/* currently scrubbing */
127 	EZFS_NO_SCRUB,		/* no active scrub */
128 	EZFS_DIFF,		/* general failure of zfs diff */
129 	EZFS_DIFFDATA,		/* bad zfs diff data */
130 	EZFS_POOLREADONLY,	/* pool is in read-only mode */
131 	EZFS_UNKNOWN
132 } zfs_error_t;
133 
134 /*
135  * The following data structures are all part
136  * of the zfs_allow_t data structure which is
137  * used for printing 'allow' permissions.
138  * It is a linked list of zfs_allow_t's which
139  * then contain avl tree's for user/group/sets/...
140  * and each one of the entries in those trees have
141  * avl tree's for the permissions they belong to and
142  * whether they are local,descendent or local+descendent
143  * permissions.  The AVL trees are used primarily for
144  * sorting purposes, but also so that we can quickly find
145  * a given user and or permission.
146  */
147 typedef struct zfs_perm_node {
148 	avl_node_t z_node;
149 	char z_pname[MAXPATHLEN];
150 } zfs_perm_node_t;
151 
152 typedef struct zfs_allow_node {
153 	avl_node_t z_node;
154 	char z_key[MAXPATHLEN];		/* name, such as joe */
155 	avl_tree_t z_localdescend;	/* local+descendent perms */
156 	avl_tree_t z_local;		/* local permissions */
157 	avl_tree_t z_descend;		/* descendent permissions */
158 } zfs_allow_node_t;
159 
160 typedef struct zfs_allow {
161 	struct zfs_allow *z_next;
162 	char z_setpoint[MAXPATHLEN];
163 	avl_tree_t z_sets;
164 	avl_tree_t z_crperms;
165 	avl_tree_t z_user;
166 	avl_tree_t z_group;
167 	avl_tree_t z_everyone;
168 } zfs_allow_t;
169 
170 /*
171  * Basic handle types
172  */
173 typedef struct zfs_handle zfs_handle_t;
174 typedef struct zpool_handle zpool_handle_t;
175 typedef struct libzfs_handle libzfs_handle_t;
176 
177 /*
178  * Library initialization
179  */
180 extern libzfs_handle_t *libzfs_init(void);
181 extern void libzfs_fini(libzfs_handle_t *);
182 
183 extern libzfs_handle_t *zpool_get_handle(zpool_handle_t *);
184 extern libzfs_handle_t *zfs_get_handle(zfs_handle_t *);
185 
186 extern void libzfs_print_on_error(libzfs_handle_t *, boolean_t);
187 
188 extern void zfs_save_arguments(int argc, char **, char *, int);
189 extern int zpool_log_history(libzfs_handle_t *, const char *);
190 
191 extern int libzfs_errno(libzfs_handle_t *);
192 extern const char *libzfs_error_action(libzfs_handle_t *);
193 extern const char *libzfs_error_description(libzfs_handle_t *);
194 extern int zfs_standard_error(libzfs_handle_t *, int, const char *);
195 extern void libzfs_mnttab_init(libzfs_handle_t *);
196 extern void libzfs_mnttab_fini(libzfs_handle_t *);
197 extern void libzfs_mnttab_cache(libzfs_handle_t *, boolean_t);
198 extern int libzfs_mnttab_find(libzfs_handle_t *, const char *,
199     struct mnttab *);
200 extern void libzfs_mnttab_add(libzfs_handle_t *, const char *,
201     const char *, const char *);
202 extern void libzfs_mnttab_remove(libzfs_handle_t *, const char *);
203 
204 /*
205  * Basic handle functions
206  */
207 extern zpool_handle_t *zpool_open(libzfs_handle_t *, const char *);
208 extern zpool_handle_t *zpool_open_canfail(libzfs_handle_t *, const char *);
209 extern void zpool_close(zpool_handle_t *);
210 extern const char *zpool_get_name(zpool_handle_t *);
211 extern int zpool_get_state(zpool_handle_t *);
212 extern char *zpool_state_to_name(vdev_state_t, vdev_aux_t);
213 extern void zpool_free_handles(libzfs_handle_t *);
214 
215 /*
216  * Iterate over all active pools in the system.
217  */
218 typedef int (*zpool_iter_f)(zpool_handle_t *, void *);
219 extern int zpool_iter(libzfs_handle_t *, zpool_iter_f, void *);
220 
221 /*
222  * Functions to create and destroy pools
223  */
224 extern int zpool_create(libzfs_handle_t *, const char *, nvlist_t *,
225     nvlist_t *, nvlist_t *);
226 extern int zpool_destroy(zpool_handle_t *, const char *);
227 extern int zpool_add(zpool_handle_t *, nvlist_t *);
228 
229 typedef struct splitflags {
230 	/* do not split, but return the config that would be split off */
231 	int dryrun : 1;
232 
233 	/* after splitting, import the pool */
234 	int import : 1;
235 } splitflags_t;
236 
237 /*
238  * Functions to manipulate pool and vdev state
239  */
240 extern int zpool_scan(zpool_handle_t *, pool_scan_func_t);
241 extern int zpool_clear(zpool_handle_t *, const char *, nvlist_t *);
242 extern int zpool_reguid(zpool_handle_t *);
243 extern int zpool_reopen(zpool_handle_t *);
244 
245 extern int zpool_vdev_online(zpool_handle_t *, const char *, int,
246     vdev_state_t *);
247 extern int zpool_vdev_offline(zpool_handle_t *, const char *, boolean_t);
248 extern int zpool_vdev_attach(zpool_handle_t *, const char *,
249     const char *, nvlist_t *, int);
250 extern int zpool_vdev_detach(zpool_handle_t *, const char *);
251 extern int zpool_vdev_remove(zpool_handle_t *, const char *);
252 extern int zpool_vdev_split(zpool_handle_t *, char *, nvlist_t **, nvlist_t *,
253     splitflags_t);
254 
255 extern int zpool_vdev_fault(zpool_handle_t *, uint64_t, vdev_aux_t);
256 extern int zpool_vdev_degrade(zpool_handle_t *, uint64_t, vdev_aux_t);
257 extern int zpool_vdev_clear(zpool_handle_t *, uint64_t);
258 
259 extern nvlist_t *zpool_find_vdev(zpool_handle_t *, const char *, boolean_t *,
260     boolean_t *, boolean_t *);
261 extern nvlist_t *zpool_find_vdev_by_physpath(zpool_handle_t *, const char *,
262     boolean_t *, boolean_t *, boolean_t *);
263 extern int zpool_label_disk(libzfs_handle_t *, zpool_handle_t *, char *);
264 
265 /*
266  * Functions to manage pool properties
267  */
268 extern int zpool_set_prop(zpool_handle_t *, const char *, const char *);
269 extern int zpool_get_prop(zpool_handle_t *, zpool_prop_t, char *,
270     size_t proplen, zprop_source_t *, boolean_t);
271 extern uint64_t zpool_get_prop_int(zpool_handle_t *, zpool_prop_t,
272     zprop_source_t *);
273 
274 extern const char *zpool_prop_to_name(zpool_prop_t);
275 extern const char *zpool_prop_values(zpool_prop_t);
276 
277 /*
278  * Pool health statistics.
279  */
280 typedef enum {
281 	/*
282 	 * The following correspond to faults as defined in the (fault.fs.zfs.*)
283 	 * event namespace.  Each is associated with a corresponding message ID.
284 	 */
285 	ZPOOL_STATUS_CORRUPT_CACHE,	/* corrupt /kernel/drv/zpool.cache */
286 	ZPOOL_STATUS_MISSING_DEV_R,	/* missing device with replicas */
287 	ZPOOL_STATUS_MISSING_DEV_NR,	/* missing device with no replicas */
288 	ZPOOL_STATUS_CORRUPT_LABEL_R,	/* bad device label with replicas */
289 	ZPOOL_STATUS_CORRUPT_LABEL_NR,	/* bad device label with no replicas */
290 	ZPOOL_STATUS_BAD_GUID_SUM,	/* sum of device guids didn't match */
291 	ZPOOL_STATUS_CORRUPT_POOL,	/* pool metadata is corrupted */
292 	ZPOOL_STATUS_CORRUPT_DATA,	/* data errors in user (meta)data */
293 	ZPOOL_STATUS_FAILING_DEV,	/* device experiencing errors */
294 	ZPOOL_STATUS_VERSION_NEWER,	/* newer on-disk version */
295 	ZPOOL_STATUS_HOSTID_MISMATCH,	/* last accessed by another system */
296 	ZPOOL_STATUS_IO_FAILURE_WAIT,	/* failed I/O, failmode 'wait' */
297 	ZPOOL_STATUS_IO_FAILURE_CONTINUE, /* failed I/O, failmode 'continue' */
298 	ZPOOL_STATUS_BAD_LOG,		/* cannot read log chain(s) */
299 
300 	/*
301 	 * If the pool has unsupported features but can still be opened in
302 	 * read-only mode, its status is ZPOOL_STATUS_UNSUP_FEAT_WRITE. If the
303 	 * pool has unsupported features but cannot be opened at all, its
304 	 * status is ZPOOL_STATUS_UNSUP_FEAT_READ.
305 	 */
306 	ZPOOL_STATUS_UNSUP_FEAT_READ,	/* unsupported features for read */
307 	ZPOOL_STATUS_UNSUP_FEAT_WRITE,	/* unsupported features for write */
308 
309 	/*
310 	 * These faults have no corresponding message ID.  At the time we are
311 	 * checking the status, the original reason for the FMA fault (I/O or
312 	 * checksum errors) has been lost.
313 	 */
314 	ZPOOL_STATUS_FAULTED_DEV_R,	/* faulted device with replicas */
315 	ZPOOL_STATUS_FAULTED_DEV_NR,	/* faulted device with no replicas */
316 
317 	/*
318 	 * The following are not faults per se, but still an error possibly
319 	 * requiring administrative attention.  There is no corresponding
320 	 * message ID.
321 	 */
322 	ZPOOL_STATUS_VERSION_OLDER,	/* older legacy on-disk version */
323 	ZPOOL_STATUS_FEAT_DISABLED,	/* supported features are disabled */
324 	ZPOOL_STATUS_RESILVERING,	/* device being resilvered */
325 	ZPOOL_STATUS_OFFLINE_DEV,	/* device offline */
326 	ZPOOL_STATUS_REMOVED_DEV,	/* removed device */
327 
328 	/*
329 	 * Finally, the following indicates a healthy pool.
330 	 */
331 	ZPOOL_STATUS_OK
332 } zpool_status_t;
333 
334 extern zpool_status_t zpool_get_status(zpool_handle_t *, char **);
335 extern zpool_status_t zpool_import_status(nvlist_t *, char **);
336 extern void zpool_dump_ddt(const ddt_stat_t *dds, const ddt_histogram_t *ddh);
337 
338 /*
339  * Statistics and configuration functions.
340  */
341 extern nvlist_t *zpool_get_config(zpool_handle_t *, nvlist_t **);
342 extern nvlist_t *zpool_get_features(zpool_handle_t *);
343 extern int zpool_refresh_stats(zpool_handle_t *, boolean_t *);
344 extern int zpool_get_errlog(zpool_handle_t *, nvlist_t **);
345 
346 /*
347  * Import and export functions
348  */
349 extern int zpool_export(zpool_handle_t *, boolean_t, const char *);
350 extern int zpool_export_force(zpool_handle_t *, const char *);
351 extern int zpool_import(libzfs_handle_t *, nvlist_t *, const char *,
352     char *altroot);
353 extern int zpool_import_props(libzfs_handle_t *, nvlist_t *, const char *,
354     nvlist_t *, int);
355 extern void zpool_print_unsup_feat(nvlist_t *config);
356 
357 /*
358  * Search for pools to import
359  */
360 
361 typedef struct importargs {
362 	char **path;		/* a list of paths to search		*/
363 	int paths;		/* number of paths to search		*/
364 	char *poolname;		/* name of a pool to find		*/
365 	uint64_t guid;		/* guid of a pool to find		*/
366 	char *cachefile;	/* cachefile to use for import		*/
367 	int can_be_active : 1;	/* can the pool be active?		*/
368 	int unique : 1;		/* does 'poolname' already exist?	*/
369 	int exists : 1;		/* set on return if pool already exists	*/
370 } importargs_t;
371 
372 extern nvlist_t *zpool_search_import(libzfs_handle_t *, importargs_t *);
373 
374 /* legacy pool search routines */
375 extern nvlist_t *zpool_find_import(libzfs_handle_t *, int, char **);
376 extern nvlist_t *zpool_find_import_cached(libzfs_handle_t *, const char *,
377     char *, uint64_t);
378 
379 /*
380  * Miscellaneous pool functions
381  */
382 struct zfs_cmd;
383 
384 extern const char *zfs_history_event_names[];
385 
386 extern char *zpool_vdev_name(libzfs_handle_t *, zpool_handle_t *, nvlist_t *,
387     boolean_t verbose);
388 extern int zpool_upgrade(zpool_handle_t *, uint64_t);
389 extern int zpool_get_history(zpool_handle_t *, nvlist_t **);
390 extern int zpool_history_unpack(char *, uint64_t, uint64_t *,
391     nvlist_t ***, uint_t *);
392 extern void zpool_obj_to_path(zpool_handle_t *, uint64_t, uint64_t, char *,
393     size_t len);
394 extern int zfs_ioctl(libzfs_handle_t *, int, struct zfs_cmd *);
395 extern int zpool_get_physpath(zpool_handle_t *, char *, size_t);
396 extern void zpool_explain_recover(libzfs_handle_t *, const char *, int,
397     nvlist_t *);
398 
399 /*
400  * Basic handle manipulations.  These functions do not create or destroy the
401  * underlying datasets, only the references to them.
402  */
403 extern zfs_handle_t *zfs_open(libzfs_handle_t *, const char *, int);
404 extern zfs_handle_t *zfs_handle_dup(zfs_handle_t *);
405 extern void zfs_close(zfs_handle_t *);
406 extern zfs_type_t zfs_get_type(const zfs_handle_t *);
407 extern const char *zfs_get_name(const zfs_handle_t *);
408 extern zpool_handle_t *zfs_get_pool_handle(const zfs_handle_t *);
409 
410 /*
411  * Property management functions.  Some functions are shared with the kernel,
412  * and are found in sys/fs/zfs.h.
413  */
414 
415 /*
416  * zfs dataset property management
417  */
418 extern const char *zfs_prop_default_string(zfs_prop_t);
419 extern uint64_t zfs_prop_default_numeric(zfs_prop_t);
420 extern const char *zfs_prop_column_name(zfs_prop_t);
421 extern boolean_t zfs_prop_align_right(zfs_prop_t);
422 
423 extern nvlist_t *zfs_valid_proplist(libzfs_handle_t *, zfs_type_t,
424     nvlist_t *, uint64_t, zfs_handle_t *, zpool_handle_t *, const char *);
425 
426 extern const char *zfs_prop_to_name(zfs_prop_t);
427 extern int zfs_prop_set(zfs_handle_t *, const char *, const char *);
428 extern int zfs_prop_set_list(zfs_handle_t *, nvlist_t *);
429 extern int zfs_prop_get(zfs_handle_t *, zfs_prop_t, char *, size_t,
430     zprop_source_t *, char *, size_t, boolean_t);
431 extern int zfs_prop_get_recvd(zfs_handle_t *, const char *, char *, size_t,
432     boolean_t);
433 extern int zfs_prop_get_numeric(zfs_handle_t *, zfs_prop_t, uint64_t *,
434     zprop_source_t *, char *, size_t);
435 extern int zfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname,
436     uint64_t *propvalue);
437 extern int zfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname,
438     char *propbuf, int proplen, boolean_t literal);
439 extern int zfs_prop_get_written_int(zfs_handle_t *zhp, const char *propname,
440     uint64_t *propvalue);
441 extern int zfs_prop_get_written(zfs_handle_t *zhp, const char *propname,
442     char *propbuf, int proplen, boolean_t literal);
443 extern int zfs_prop_get_feature(zfs_handle_t *zhp, const char *propname,
444     char *buf, size_t len);
445 extern uint64_t zfs_prop_get_int(zfs_handle_t *, zfs_prop_t);
446 extern int zfs_prop_inherit(zfs_handle_t *, const char *, boolean_t);
447 extern const char *zfs_prop_values(zfs_prop_t);
448 extern int zfs_prop_is_string(zfs_prop_t prop);
449 extern nvlist_t *zfs_get_user_props(zfs_handle_t *);
450 extern nvlist_t *zfs_get_recvd_props(zfs_handle_t *);
451 extern nvlist_t *zfs_get_clones_nvl(zfs_handle_t *);
452 
453 
454 typedef struct zprop_list {
455 	int		pl_prop;
456 	char		*pl_user_prop;
457 	struct zprop_list *pl_next;
458 	boolean_t	pl_all;
459 	size_t		pl_width;
460 	size_t		pl_recvd_width;
461 	boolean_t	pl_fixed;
462 } zprop_list_t;
463 
464 extern int zfs_expand_proplist(zfs_handle_t *, zprop_list_t **, boolean_t,
465     boolean_t);
466 extern void zfs_prune_proplist(zfs_handle_t *, uint8_t *);
467 
468 #define	ZFS_MOUNTPOINT_NONE	"none"
469 #define	ZFS_MOUNTPOINT_LEGACY	"legacy"
470 
471 #define	ZFS_FEATURE_DISABLED	"disabled"
472 #define	ZFS_FEATURE_ENABLED	"enabled"
473 #define	ZFS_FEATURE_ACTIVE	"active"
474 
475 #define	ZFS_UNSUPPORTED_INACTIVE	"inactive"
476 #define	ZFS_UNSUPPORTED_READONLY	"readonly"
477 
478 /*
479  * zpool property management
480  */
481 extern int zpool_expand_proplist(zpool_handle_t *, zprop_list_t **);
482 extern int zpool_prop_get_feature(zpool_handle_t *, const char *, char *,
483     size_t);
484 extern const char *zpool_prop_default_string(zpool_prop_t);
485 extern uint64_t zpool_prop_default_numeric(zpool_prop_t);
486 extern const char *zpool_prop_column_name(zpool_prop_t);
487 extern boolean_t zpool_prop_align_right(zpool_prop_t);
488 
489 /*
490  * Functions shared by zfs and zpool property management.
491  */
492 extern int zprop_iter(zprop_func func, void *cb, boolean_t show_all,
493     boolean_t ordered, zfs_type_t type);
494 extern int zprop_get_list(libzfs_handle_t *, char *, zprop_list_t **,
495     zfs_type_t);
496 extern void zprop_free_list(zprop_list_t *);
497 
498 #define	ZFS_GET_NCOLS	5
499 
500 typedef enum {
501 	GET_COL_NONE,
502 	GET_COL_NAME,
503 	GET_COL_PROPERTY,
504 	GET_COL_VALUE,
505 	GET_COL_RECVD,
506 	GET_COL_SOURCE
507 } zfs_get_column_t;
508 
509 /*
510  * Functions for printing zfs or zpool properties
511  */
512 typedef struct zprop_get_cbdata {
513 	int cb_sources;
514 	zfs_get_column_t cb_columns[ZFS_GET_NCOLS];
515 	int cb_colwidths[ZFS_GET_NCOLS + 1];
516 	boolean_t cb_scripted;
517 	boolean_t cb_literal;
518 	boolean_t cb_first;
519 	zprop_list_t *cb_proplist;
520 	zfs_type_t cb_type;
521 } zprop_get_cbdata_t;
522 
523 void zprop_print_one_property(const char *, zprop_get_cbdata_t *,
524     const char *, const char *, zprop_source_t, const char *,
525     const char *);
526 
527 /*
528  * Iterator functions.
529  */
530 typedef int (*zfs_iter_f)(zfs_handle_t *, void *);
531 extern int zfs_iter_root(libzfs_handle_t *, zfs_iter_f, void *);
532 extern int zfs_iter_children(zfs_handle_t *, zfs_iter_f, void *);
533 extern int zfs_iter_dependents(zfs_handle_t *, boolean_t, zfs_iter_f, void *);
534 extern int zfs_iter_filesystems(zfs_handle_t *, zfs_iter_f, void *);
535 extern int zfs_iter_snapshots(zfs_handle_t *, zfs_iter_f, void *);
536 extern int zfs_iter_snapshots_sorted(zfs_handle_t *, zfs_iter_f, void *);
537 extern int zfs_iter_snapspec(zfs_handle_t *, const char *, zfs_iter_f, void *);
538 extern int zfs_iter_bookmarks(zfs_handle_t *, zfs_iter_f, void *);
539 
540 typedef struct get_all_cb {
541 	zfs_handle_t	**cb_handles;
542 	size_t		cb_alloc;
543 	size_t		cb_used;
544 	boolean_t	cb_verbose;
545 	int		(*cb_getone)(zfs_handle_t *, void *);
546 } get_all_cb_t;
547 
548 void libzfs_add_handle(get_all_cb_t *, zfs_handle_t *);
549 int libzfs_dataset_cmp(const void *, const void *);
550 
551 /*
552  * Functions to create and destroy datasets.
553  */
554 extern int zfs_create(libzfs_handle_t *, const char *, zfs_type_t,
555     nvlist_t *);
556 extern int zfs_create_ancestors(libzfs_handle_t *, const char *);
557 extern int zfs_destroy(zfs_handle_t *, boolean_t);
558 extern int zfs_destroy_snaps(zfs_handle_t *, char *, boolean_t);
559 extern int zfs_destroy_snaps_nvl(libzfs_handle_t *, nvlist_t *, boolean_t);
560 extern int zfs_clone(zfs_handle_t *, const char *, nvlist_t *);
561 extern int zfs_snapshot(libzfs_handle_t *, const char *, boolean_t, nvlist_t *);
562 extern int zfs_snapshot_nvl(libzfs_handle_t *hdl, nvlist_t *snaps,
563     nvlist_t *props);
564 extern int zfs_rollback(zfs_handle_t *, zfs_handle_t *, boolean_t);
565 extern int zfs_rename(zfs_handle_t *, const char *, boolean_t, boolean_t);
566 
567 typedef struct sendflags {
568 	/* print informational messages (ie, -v was specified) */
569 	boolean_t verbose;
570 
571 	/* recursive send  (ie, -R) */
572 	boolean_t replicate;
573 
574 	/* for incrementals, do all intermediate snapshots */
575 	boolean_t doall;
576 
577 	/* if dataset is a clone, do incremental from its origin */
578 	boolean_t fromorigin;
579 
580 	/* do deduplication */
581 	boolean_t dedup;
582 
583 	/* send properties (ie, -p) */
584 	boolean_t props;
585 
586 	/* do not send (no-op, ie. -n) */
587 	boolean_t dryrun;
588 
589 	/* parsable verbose output (ie. -P) */
590 	boolean_t parsable;
591 
592 	/* show progress (ie. -v) */
593 	boolean_t progress;
594 
595 	/* large blocks (>128K) are permitted */
596 	boolean_t largeblock;
597 
598 	/* WRITE_EMBEDDED records of type DATA are permitted */
599 	boolean_t embed_data;
600 } sendflags_t;
601 
602 typedef boolean_t (snapfilter_cb_t)(zfs_handle_t *, void *);
603 
604 extern int zfs_send(zfs_handle_t *, const char *, const char *,
605     sendflags_t *, int, snapfilter_cb_t, void *, nvlist_t **);
606 extern int zfs_send_one(zfs_handle_t *, const char *, int, enum lzc_send_flags);
607 extern int zfs_send_resume(libzfs_handle_t *, sendflags_t *, int outfd,
608     const char *);
609 extern nvlist_t *zfs_send_resume_token_to_nvlist(libzfs_handle_t *hdl,
610     const char *token);
611 
612 extern int zfs_promote(zfs_handle_t *);
613 extern int zfs_hold(zfs_handle_t *, const char *, const char *,
614     boolean_t, int);
615 extern int zfs_hold_nvl(zfs_handle_t *, int, nvlist_t *);
616 extern int zfs_release(zfs_handle_t *, const char *, const char *, boolean_t);
617 extern int zfs_get_holds(zfs_handle_t *, nvlist_t **);
618 extern uint64_t zvol_volsize_to_reservation(uint64_t, nvlist_t *);
619 
620 typedef int (*zfs_userspace_cb_t)(void *arg, const char *domain,
621     uid_t rid, uint64_t space);
622 
623 extern int zfs_userspace(zfs_handle_t *, zfs_userquota_prop_t,
624     zfs_userspace_cb_t, void *);
625 
626 extern int zfs_get_fsacl(zfs_handle_t *, nvlist_t **);
627 extern int zfs_set_fsacl(zfs_handle_t *, boolean_t, nvlist_t *);
628 
629 typedef struct recvflags {
630 	/* print informational messages (ie, -v was specified) */
631 	boolean_t verbose;
632 
633 	/* the destination is a prefix, not the exact fs (ie, -d) */
634 	boolean_t isprefix;
635 
636 	/*
637 	 * Only the tail of the sent snapshot path is appended to the
638 	 * destination to determine the received snapshot name (ie, -e).
639 	 */
640 	boolean_t istail;
641 
642 	/* do not actually do the recv, just check if it would work (ie, -n) */
643 	boolean_t dryrun;
644 
645 	/* rollback/destroy filesystems as necessary (eg, -F) */
646 	boolean_t force;
647 
648 	/* set "canmount=off" on all modified filesystems */
649 	boolean_t canmountoff;
650 
651 	/*
652 	 * Mark the file systems as "resumable" and do not destroy them if the
653 	 * receive is interrupted
654 	 */
655 	boolean_t resumable;
656 
657 	/* byteswap flag is used internally; callers need not specify */
658 	boolean_t byteswap;
659 
660 	/* do not mount file systems as they are extracted (private) */
661 	boolean_t nomount;
662 } recvflags_t;
663 
664 extern int zfs_receive(libzfs_handle_t *, const char *, nvlist_t *,
665     recvflags_t *, int, avl_tree_t *);
666 
667 typedef enum diff_flags {
668 	ZFS_DIFF_PARSEABLE = 0x1,
669 	ZFS_DIFF_TIMESTAMP = 0x2,
670 	ZFS_DIFF_CLASSIFY = 0x4
671 } diff_flags_t;
672 
673 extern int zfs_show_diffs(zfs_handle_t *, int, const char *, const char *,
674     int);
675 
676 /*
677  * Miscellaneous functions.
678  */
679 extern const char *zfs_type_to_name(zfs_type_t);
680 extern void zfs_refresh_properties(zfs_handle_t *);
681 extern int zfs_name_valid(const char *, zfs_type_t);
682 extern zfs_handle_t *zfs_path_to_zhandle(libzfs_handle_t *, char *, zfs_type_t);
683 extern boolean_t zfs_dataset_exists(libzfs_handle_t *, const char *,
684     zfs_type_t);
685 extern int zfs_spa_version(zfs_handle_t *, int *);
686 extern boolean_t zfs_bookmark_exists(const char *path);
687 
688 /*
689  * Mount support functions.
690  */
691 extern boolean_t is_mounted(libzfs_handle_t *, const char *special, char **);
692 extern boolean_t zfs_is_mounted(zfs_handle_t *, char **);
693 extern int zfs_mount(zfs_handle_t *, const char *, int);
694 extern int zfs_unmount(zfs_handle_t *, const char *, int);
695 extern int zfs_unmountall(zfs_handle_t *, int);
696 
697 /*
698  * Share support functions.
699  */
700 extern boolean_t zfs_is_shared(zfs_handle_t *);
701 extern int zfs_share(zfs_handle_t *);
702 extern int zfs_unshare(zfs_handle_t *);
703 
704 /*
705  * Protocol-specific share support functions.
706  */
707 extern boolean_t zfs_is_shared_nfs(zfs_handle_t *, char **);
708 extern boolean_t zfs_is_shared_smb(zfs_handle_t *, char **);
709 extern int zfs_share_nfs(zfs_handle_t *);
710 extern int zfs_share_smb(zfs_handle_t *);
711 extern int zfs_shareall(zfs_handle_t *);
712 extern int zfs_unshare_nfs(zfs_handle_t *, const char *);
713 extern int zfs_unshare_smb(zfs_handle_t *, const char *);
714 extern int zfs_unshareall_nfs(zfs_handle_t *);
715 extern int zfs_unshareall_smb(zfs_handle_t *);
716 extern int zfs_unshareall_bypath(zfs_handle_t *, const char *);
717 extern int zfs_unshareall(zfs_handle_t *);
718 extern int zfs_deleg_share_nfs(libzfs_handle_t *, char *, char *, char *,
719     void *, void *, int, zfs_share_op_t);
720 
721 /*
722  * When dealing with nvlists, verify() is extremely useful
723  */
724 #ifdef NDEBUG
725 #define	verify(EX)	((void)(EX))
726 #else
727 #define	verify(EX)	assert(EX)
728 #endif
729 
730 /*
731  * Utility function to convert a number to a human-readable form.
732  */
733 extern void zfs_nicenum(uint64_t, char *, size_t);
734 extern int zfs_nicestrtonum(libzfs_handle_t *, const char *, uint64_t *);
735 
736 /*
737  * Given a device or file, determine if it is part of a pool.
738  */
739 extern int zpool_in_use(libzfs_handle_t *, int, pool_state_t *, char **,
740     boolean_t *);
741 
742 /*
743  * Label manipulation.
744  */
745 extern int zpool_read_label(int, nvlist_t **);
746 extern int zpool_clear_label(int);
747 
748 /* is this zvol valid for use as a dump device? */
749 extern int zvol_check_dump_config(char *);
750 
751 /*
752  * Management interfaces for SMB ACL files
753  */
754 
755 int zfs_smb_acl_add(libzfs_handle_t *, char *, char *, char *);
756 int zfs_smb_acl_remove(libzfs_handle_t *, char *, char *, char *);
757 int zfs_smb_acl_purge(libzfs_handle_t *, char *, char *);
758 int zfs_smb_acl_rename(libzfs_handle_t *, char *, char *, char *, char *);
759 
760 /*
761  * Enable and disable datasets within a pool by mounting/unmounting and
762  * sharing/unsharing them.
763  */
764 extern int zpool_enable_datasets(zpool_handle_t *, const char *, int);
765 extern int zpool_disable_datasets(zpool_handle_t *, boolean_t);
766 
767 /*
768  * Mappings between vdev and FRU.
769  */
770 extern void libzfs_fru_refresh(libzfs_handle_t *);
771 extern const char *libzfs_fru_lookup(libzfs_handle_t *, const char *);
772 extern const char *libzfs_fru_devpath(libzfs_handle_t *, const char *);
773 extern boolean_t libzfs_fru_compare(libzfs_handle_t *, const char *,
774     const char *);
775 extern boolean_t libzfs_fru_notself(libzfs_handle_t *, const char *);
776 extern int zpool_fru_set(zpool_handle_t *, uint64_t, const char *);
777 
778 extern int zfs_get_hole_count(const char *, uint64_t *, uint64_t *);
779 
780 #ifdef	__cplusplus
781 }
782 #endif
783 
784 #endif	/* _LIBZFS_H */
785