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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
22/*
23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#ifndef _LIBZFS_H
28#define _LIBZFS_H
29
34dc7c2f
BB		 30#include <assert.h>
31#include <libnvpair.h>
32#include <sys/param.h>
33#include <sys/types.h>
34#include <sys/varargs.h>
35#include <sys/fs/zfs.h>
36#include <sys/avl.h>
37#include <ucred.h>
38
39#ifdef __cplusplus
40extern "C" {
41#endif
42
43/*
44 * Miscellaneous ZFS constants
45 */
46#define ZFS_MAXNAMELEN MAXNAMELEN
47#define ZPOOL_MAXNAMELEN MAXNAMELEN
48#define ZFS_MAXPROPLEN MAXPATHLEN
49#define ZPOOL_MAXPROPLEN MAXPATHLEN
50
51/*
52 * libzfs errors
53 */
54enum {
55 EZFS_NOMEM = 2000, /* out of memory */
56 EZFS_BADPROP, /* invalid property value */
57 EZFS_PROPREADONLY, /* cannot set readonly property */
58 EZFS_PROPTYPE, /* property does not apply to dataset type */
59 EZFS_PROPNONINHERIT, /* property is not inheritable */
60 EZFS_PROPSPACE, /* bad quota or reservation */
61 EZFS_BADTYPE, /* dataset is not of appropriate type */
62 EZFS_BUSY, /* pool or dataset is busy */
63 EZFS_EXISTS, /* pool or dataset already exists */
64 EZFS_NOENT, /* no such pool or dataset */
65 EZFS_BADSTREAM, /* bad backup stream */
66 EZFS_DSREADONLY, /* dataset is readonly */
67 EZFS_VOLTOOBIG, /* volume is too large for 32-bit system */
68 EZFS_VOLHASDATA, /* volume already contains data */
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_DEVLINKS, /* failed to create zvol links */
88 EZFS_PERM, /* permission denied */
89 EZFS_NOSPC, /* out of space */
90 EZFS_IO, /* I/O error */
91 EZFS_INTR, /* signal received */
92 EZFS_ISSPARE, /* device is a hot spare */
93 EZFS_INVALCONFIG, /* invalid vdev configuration */
94 EZFS_RECURSIVE, /* recursive dependency */
95 EZFS_NOHISTORY, /* no history object */
96 EZFS_UNSHAREISCSIFAILED, /* iscsitgtd failed request to unshare */
97 EZFS_SHAREISCSIFAILED, /* iscsitgtd failed request to share */
98 EZFS_POOLPROPS, /* couldn't retrieve pool props */
99 EZFS_POOL_NOTSUP, /* ops not supported for this type of pool */
100 EZFS_POOL_INVALARG, /* invalid argument for this pool operation */
101 EZFS_NAMETOOLONG, /* dataset name is too long */
102 EZFS_OPENFAILED, /* open of device failed */
103 EZFS_NOCAP, /* couldn't get capacity */
104 EZFS_LABELFAILED, /* write of label failed */
105 EZFS_ISCSISVCUNAVAIL, /* iscsi service unavailable */
106 EZFS_BADWHO, /* invalid permission who */
107 EZFS_BADPERM, /* invalid permission */
108 EZFS_BADPERMSET, /* invalid permission set name */
109 EZFS_NODELEGATION, /* delegated administration is disabled */
110 EZFS_PERMRDONLY, /* pemissions are readonly */
111 EZFS_UNSHARESMBFAILED, /* failed to unshare over smb */
112 EZFS_SHARESMBFAILED, /* failed to share over smb */
113 EZFS_BADCACHE, /* bad cache file */
114 EZFS_ISL2CACHE, /* device is for the level 2 ARC */
115 EZFS_VDEVNOTSUP, /* unsupported vdev type */
b128c09f
BB		 116 EZFS_NOTSUP, /* ops not supported on this dataset */
117 EZFS_ACTIVE_SPARE, /* pool has active shared spare devices */
34dc7c2f
BB		 118 EZFS_UNKNOWN
119};
120
121/*
122 * The following data structures are all part
123 * of the zfs_allow_t data structure which is
124 * used for printing 'allow' permissions.
125 * It is a linked list of zfs_allow_t's which
126 * then contain avl tree's for user/group/sets/...
127 * and each one of the entries in those trees have
128 * avl tree's for the permissions they belong to and
129 * whether they are local,descendent or local+descendent
130 * permissions. The AVL trees are used primarily for
131 * sorting purposes, but also so that we can quickly find
132 * a given user and or permission.
133 */
134typedef struct zfs_perm_node {
135 avl_node_t z_node;
136 char z_pname[MAXPATHLEN];
137} zfs_perm_node_t;
138
139typedef struct zfs_allow_node {
140 avl_node_t z_node;
141 char z_key[MAXPATHLEN]; /* name, such as joe */
142 avl_tree_t z_localdescend; /* local+descendent perms */
143 avl_tree_t z_local; /* local permissions */
144 avl_tree_t z_descend; /* descendent permissions */
145} zfs_allow_node_t;
146
147typedef struct zfs_allow {
148 struct zfs_allow *z_next;
149 char z_setpoint[MAXPATHLEN];
150 avl_tree_t z_sets;
151 avl_tree_t z_crperms;
152 avl_tree_t z_user;
153 avl_tree_t z_group;
154 avl_tree_t z_everyone;
155} zfs_allow_t;
156
157/*
158 * Basic handle types
159 */
160typedef struct zfs_handle zfs_handle_t;
161typedef struct zpool_handle zpool_handle_t;
162typedef struct libzfs_handle libzfs_handle_t;
163
164/*
165 * Library initialization
166 */
167extern libzfs_handle_t *libzfs_init(void);
168extern void libzfs_fini(libzfs_handle_t *);
169
170extern libzfs_handle_t *zpool_get_handle(zpool_handle_t *);
171extern libzfs_handle_t *zfs_get_handle(zfs_handle_t *);
172
173extern void libzfs_print_on_error(libzfs_handle_t *, boolean_t);
174
175extern int libzfs_errno(libzfs_handle_t *);
176extern const char *libzfs_error_action(libzfs_handle_t *);
177extern const char *libzfs_error_description(libzfs_handle_t *);
178
179/*
180 * Basic handle functions
181 */
182extern zpool_handle_t *zpool_open(libzfs_handle_t *, const char *);
183extern zpool_handle_t *zpool_open_canfail(libzfs_handle_t *, const char *);
184extern void zpool_close(zpool_handle_t *);
185extern const char *zpool_get_name(zpool_handle_t *);
186extern int zpool_get_state(zpool_handle_t *);
187extern char *zpool_state_to_name(vdev_state_t, vdev_aux_t);
b128c09f 188extern void zpool_free_handles(libzfs_handle_t *);
34dc7c2f
BB		 189
190/*
191 * Iterate over all active pools in the system.
192 */
193typedef int (*zpool_iter_f)(zpool_handle_t *, void *);
194extern int zpool_iter(libzfs_handle_t *, zpool_iter_f, void *);
195
196/*
197 * Functions to create and destroy pools
198 */
199extern int zpool_create(libzfs_handle_t *, const char *, nvlist_t *,
b128c09f 200 nvlist_t *, nvlist_t *);
34dc7c2f
BB		 201extern int zpool_destroy(zpool_handle_t *);
202extern int zpool_add(zpool_handle_t *, nvlist_t *);
203
204/*
205 * Functions to manipulate pool and vdev state
206 */
207extern int zpool_scrub(zpool_handle_t *, pool_scrub_type_t);
208extern int zpool_clear(zpool_handle_t *, const char *);
209
210extern int zpool_vdev_online(zpool_handle_t *, const char *, int,
211 vdev_state_t *);
212extern int zpool_vdev_offline(zpool_handle_t *, const char *, boolean_t);
213extern int zpool_vdev_attach(zpool_handle_t *, const char *,
214 const char *, nvlist_t *, int);
215extern int zpool_vdev_detach(zpool_handle_t *, const char *);
216extern int zpool_vdev_remove(zpool_handle_t *, const char *);
217
218extern int zpool_vdev_fault(zpool_handle_t *, uint64_t);
219extern int zpool_vdev_degrade(zpool_handle_t *, uint64_t);
220extern int zpool_vdev_clear(zpool_handle_t *, uint64_t);
221
222extern nvlist_t *zpool_find_vdev(zpool_handle_t *, const char *, boolean_t *,
b128c09f 223 boolean_t *, boolean_t *);
34dc7c2f
BB		 224extern int zpool_label_disk(libzfs_handle_t *, zpool_handle_t *, char *);
225
226/*
227 * Functions to manage pool properties
228 */
229extern int zpool_set_prop(zpool_handle_t *, const char *, const char *);
230extern int zpool_get_prop(zpool_handle_t *, zpool_prop_t, char *,
231 size_t proplen, zprop_source_t *);
232extern uint64_t zpool_get_prop_int(zpool_handle_t *, zpool_prop_t,
233 zprop_source_t *);
234
235extern const char *zpool_prop_to_name(zpool_prop_t);
236extern const char *zpool_prop_values(zpool_prop_t);
237
238/*
239 * Pool health statistics.
240 */
241typedef enum {
242 /*
243 * The following correspond to faults as defined in the (fault.fs.zfs.*)
244 * event namespace. Each is associated with a corresponding message ID.
245 */
246 ZPOOL_STATUS_CORRUPT_CACHE, /* corrupt /kernel/drv/zpool.cache */
247 ZPOOL_STATUS_MISSING_DEV_R, /* missing device with replicas */
248 ZPOOL_STATUS_MISSING_DEV_NR, /* missing device with no replicas */
249 ZPOOL_STATUS_CORRUPT_LABEL_R, /* bad device label with replicas */
250 ZPOOL_STATUS_CORRUPT_LABEL_NR, /* bad device label with no replicas */
251 ZPOOL_STATUS_BAD_GUID_SUM, /* sum of device guids didn't match */
252 ZPOOL_STATUS_CORRUPT_POOL, /* pool metadata is corrupted */
253 ZPOOL_STATUS_CORRUPT_DATA, /* data errors in user (meta)data */
254 ZPOOL_STATUS_FAILING_DEV, /* device experiencing errors */
255 ZPOOL_STATUS_VERSION_NEWER, /* newer on-disk version */
256 ZPOOL_STATUS_HOSTID_MISMATCH, /* last accessed by another system */
b128c09f
BB		 257 ZPOOL_STATUS_IO_FAILURE_WAIT, /* failed I/O, failmode 'wait' */
258 ZPOOL_STATUS_IO_FAILURE_CONTINUE, /* failed I/O, failmode 'continue' */
34dc7c2f
BB		 259 ZPOOL_STATUS_FAULTED_DEV_R, /* faulted device with replicas */
260 ZPOOL_STATUS_FAULTED_DEV_NR, /* faulted device with no replicas */
b128c09f 261 ZPOOL_STATUS_BAD_LOG, /* cannot read log chain(s) */
34dc7c2f
BB		 262
263 /*
264 * The following are not faults per se, but still an error possibly
265 * requiring administrative attention. There is no corresponding
266 * message ID.
267 */
268 ZPOOL_STATUS_VERSION_OLDER, /* older on-disk version */
269 ZPOOL_STATUS_RESILVERING, /* device being resilvered */
270 ZPOOL_STATUS_OFFLINE_DEV, /* device online */
271
272 /*
273 * Finally, the following indicates a healthy pool.
274 */
275 ZPOOL_STATUS_OK
276} zpool_status_t;
277
278extern zpool_status_t zpool_get_status(zpool_handle_t *, char **);
279extern zpool_status_t zpool_import_status(nvlist_t *, char **);
280
281/*
282 * Statistics and configuration functions.
283 */
284extern nvlist_t *zpool_get_config(zpool_handle_t *, nvlist_t **);
285extern int zpool_refresh_stats(zpool_handle_t *, boolean_t *);
286extern int zpool_get_errlog(zpool_handle_t *, nvlist_t **);
287
288/*
289 * Import and export functions
290 */
b128c09f 291extern int zpool_export(zpool_handle_t *, boolean_t);
34dc7c2f
BB		 292extern int zpool_import(libzfs_handle_t *, nvlist_t *, const char *,
293 char *altroot);
294extern int zpool_import_props(libzfs_handle_t *, nvlist_t *, const char *,
b128c09f 295 nvlist_t *, boolean_t);
34dc7c2f
BB		 296
297/*
298 * Search for pools to import
299 */
b128c09f 300extern nvlist_t *zpool_find_import(libzfs_handle_t *, int, char **);
34dc7c2f 301extern nvlist_t *zpool_find_import_cached(libzfs_handle_t *, const char *,
b128c09f
BB		 302 char *, uint64_t);
303extern nvlist_t *zpool_find_import_byname(libzfs_handle_t *, int, char **,
304 char *);
305extern nvlist_t *zpool_find_import_byguid(libzfs_handle_t *, int, char **,
306 uint64_t);
307extern nvlist_t *zpool_find_import_activeok(libzfs_handle_t *, int, char **);
34dc7c2f
BB		 308
309/*
310 * Miscellaneous pool functions
311 */
312struct zfs_cmd;
313
314extern char *zpool_vdev_name(libzfs_handle_t *, zpool_handle_t *, nvlist_t *);
315extern int zpool_upgrade(zpool_handle_t *, uint64_t);
316extern int zpool_get_history(zpool_handle_t *, nvlist_t **);
317extern void zpool_set_history_str(const char *subcommand, int argc,
318 char **argv, char *history_str);
319extern int zpool_stage_history(libzfs_handle_t *, const char *);
320extern void zpool_obj_to_path(zpool_handle_t *, uint64_t, uint64_t, char *,
321 size_t len);
322extern int zfs_ioctl(libzfs_handle_t *, int, struct zfs_cmd *);
b128c09f 323extern int zpool_get_physpath(zpool_handle_t *, char *);
34dc7c2f
BB		 324/*
325 * Basic handle manipulations. These functions do not create or destroy the
326 * underlying datasets, only the references to them.
327 */
328extern zfs_handle_t *zfs_open(libzfs_handle_t *, const char *, int);
329extern void zfs_close(zfs_handle_t *);
330extern zfs_type_t zfs_get_type(const zfs_handle_t *);
331extern const char *zfs_get_name(const zfs_handle_t *);
b128c09f 332extern zpool_handle_t *zfs_get_pool_handle(const zfs_handle_t *);
34dc7c2f
BB		 333
334/*
335 * Property management functions. Some functions are shared with the kernel,
336 * and are found in sys/fs/zfs.h.
337 */
338
339/*
340 * zfs dataset property management
341 */
342extern const char *zfs_prop_default_string(zfs_prop_t);
343extern uint64_t zfs_prop_default_numeric(zfs_prop_t);
344extern const char *zfs_prop_column_name(zfs_prop_t);
345extern boolean_t zfs_prop_align_right(zfs_prop_t);
346
b128c09f
BB		 347extern nvlist_t *zfs_valid_proplist(libzfs_handle_t *, zfs_type_t,
348 nvlist_t *, uint64_t, zfs_handle_t *, const char *);
349
34dc7c2f
BB		 350extern const char *zfs_prop_to_name(zfs_prop_t);
351extern int zfs_prop_set(zfs_handle_t *, const char *, const char *);
352extern int zfs_prop_get(zfs_handle_t *, zfs_prop_t, char *, size_t,
353 zprop_source_t *, char *, size_t, boolean_t);
354extern int zfs_prop_get_numeric(zfs_handle_t *, zfs_prop_t, uint64_t *,
355 zprop_source_t *, char *, size_t);
356extern uint64_t zfs_prop_get_int(zfs_handle_t *, zfs_prop_t);
357extern int zfs_prop_inherit(zfs_handle_t *, const char *);
358extern const char *zfs_prop_values(zfs_prop_t);
359extern int zfs_prop_is_string(zfs_prop_t prop);
360extern nvlist_t *zfs_get_user_props(zfs_handle_t *);
361
362typedef struct zprop_list {
363 int pl_prop;
364 char *pl_user_prop;
365 struct zprop_list *pl_next;
366 boolean_t pl_all;
367 size_t pl_width;
368 boolean_t pl_fixed;
369} zprop_list_t;
370
371extern int zfs_expand_proplist(zfs_handle_t *, zprop_list_t **);
372
373#define ZFS_MOUNTPOINT_NONE "none"
374#define ZFS_MOUNTPOINT_LEGACY "legacy"
375
376/*
377 * zpool property management
378 */
379extern int zpool_expand_proplist(zpool_handle_t *, zprop_list_t **);
380extern const char *zpool_prop_default_string(zpool_prop_t);
381extern uint64_t zpool_prop_default_numeric(zpool_prop_t);
382extern const char *zpool_prop_column_name(zpool_prop_t);
383extern boolean_t zpool_prop_align_right(zpool_prop_t);
384
385/*
386 * Functions shared by zfs and zpool property management.
387 */
388extern int zprop_iter(zprop_func func, void *cb, boolean_t show_all,
389 boolean_t ordered, zfs_type_t type);
390extern int zprop_get_list(libzfs_handle_t *, char *, zprop_list_t **,
391 zfs_type_t);
392extern void zprop_free_list(zprop_list_t *);
393
394/*
395 * Functions for printing zfs or zpool properties
396 */
397typedef struct zprop_get_cbdata {
398 int cb_sources;
399 int cb_columns[4];
400 int cb_colwidths[5];
401 boolean_t cb_scripted;
402 boolean_t cb_literal;
403 boolean_t cb_first;
404 zprop_list_t *cb_proplist;
405 zfs_type_t cb_type;
406} zprop_get_cbdata_t;
407
408void zprop_print_one_property(const char *, zprop_get_cbdata_t *,
409 const char *, const char *, zprop_source_t, const char *);
410
411#define GET_COL_NAME 1
412#define GET_COL_PROPERTY 2
413#define GET_COL_VALUE 3
414#define GET_COL_SOURCE 4
415
416/*
417 * Iterator functions.
418 */
419typedef int (*zfs_iter_f)(zfs_handle_t *, void *);
420extern int zfs_iter_root(libzfs_handle_t *, zfs_iter_f, void *);
421extern int zfs_iter_children(zfs_handle_t *, zfs_iter_f, void *);
422extern int zfs_iter_dependents(zfs_handle_t *, boolean_t, zfs_iter_f, void *);
423extern int zfs_iter_filesystems(zfs_handle_t *, zfs_iter_f, void *);
424extern int zfs_iter_snapshots(zfs_handle_t *, zfs_iter_f, void *);
425
426/*
427 * Functions to create and destroy datasets.
428 */
429extern int zfs_create(libzfs_handle_t *, const char *, zfs_type_t,
430 nvlist_t *);
431extern int zfs_create_ancestors(libzfs_handle_t *, const char *);
432extern int zfs_destroy(zfs_handle_t *);
433extern int zfs_destroy_snaps(zfs_handle_t *, char *);
434extern int zfs_clone(zfs_handle_t *, const char *, nvlist_t *);
b128c09f 435extern int zfs_snapshot(libzfs_handle_t *, const char *, boolean_t, nvlist_t *);
34dc7c2f
BB		 436extern int zfs_rollback(zfs_handle_t *, zfs_handle_t *, boolean_t);
437extern int zfs_rename(zfs_handle_t *, const char *, boolean_t);
438extern int zfs_send(zfs_handle_t *, const char *, const char *,
439 boolean_t, boolean_t, boolean_t, boolean_t, int);
440extern int zfs_promote(zfs_handle_t *);
441
442typedef struct recvflags {
443 /* print informational messages (ie, -v was specified) */
444 int verbose : 1;
445
446 /* the destination is a prefix, not the exact fs (ie, -d) */
447 int isprefix : 1;
448
449 /* do not actually do the recv, just check if it would work (ie, -n) */
450 int dryrun : 1;
451
452 /* rollback/destroy filesystems as necessary (eg, -F) */
453 int force : 1;
454
455 /* set "canmount=off" on all modified filesystems */
456 int canmountoff : 1;
457
458 /* byteswap flag is used internally; callers need not specify */
459 int byteswap : 1;
460} recvflags_t;
461
462extern int zfs_receive(libzfs_handle_t *, const char *, recvflags_t,
463 int, avl_tree_t *);
464
465/*
466 * Miscellaneous functions.
467 */
468extern const char *zfs_type_to_name(zfs_type_t);
469extern void zfs_refresh_properties(zfs_handle_t *);
470extern int zfs_name_valid(const char *, zfs_type_t);
471extern zfs_handle_t *zfs_path_to_zhandle(libzfs_handle_t *, char *, zfs_type_t);
472extern boolean_t zfs_dataset_exists(libzfs_handle_t *, const char *,
473 zfs_type_t);
474extern int zfs_spa_version(zfs_handle_t *, int *);
475
476/*
477 * dataset permission functions.
478 */
479extern int zfs_perm_set(zfs_handle_t *, nvlist_t *);
480extern int zfs_perm_remove(zfs_handle_t *, nvlist_t *);
481extern int zfs_build_perms(zfs_handle_t *, char *, char *,
482 zfs_deleg_who_type_t, zfs_deleg_inherit_t, nvlist_t **nvlist_t);
483extern int zfs_perm_get(zfs_handle_t *, zfs_allow_t **);
484extern void zfs_free_allows(zfs_allow_t *);
485extern void zfs_deleg_permissions(void);
486
487/*
488 * Mount support functions.
489 */
490extern boolean_t is_mounted(libzfs_handle_t *, const char *special, char **);
491extern boolean_t zfs_is_mounted(zfs_handle_t *, char **);
492extern int zfs_mount(zfs_handle_t *, const char *, int);
493extern int zfs_unmount(zfs_handle_t *, const char *, int);
494extern int zfs_unmountall(zfs_handle_t *, int);
495
496/*
497 * Share support functions.
498 */
499extern boolean_t zfs_is_shared(zfs_handle_t *);
500extern int zfs_share(zfs_handle_t *);
501extern int zfs_unshare(zfs_handle_t *);
502
503/*
504 * Protocol-specific share support functions.
505 */
506extern boolean_t zfs_is_shared_nfs(zfs_handle_t *, char **);
507extern boolean_t zfs_is_shared_smb(zfs_handle_t *, char **);
508extern int zfs_share_nfs(zfs_handle_t *);
509extern int zfs_share_smb(zfs_handle_t *);
510extern int zfs_shareall(zfs_handle_t *);
511extern int zfs_unshare_nfs(zfs_handle_t *, const char *);
512extern int zfs_unshare_smb(zfs_handle_t *, const char *);
513extern int zfs_unshareall_nfs(zfs_handle_t *);
514extern int zfs_unshareall_smb(zfs_handle_t *);
515extern int zfs_unshareall_bypath(zfs_handle_t *, const char *);
516extern int zfs_unshareall(zfs_handle_t *);
517extern boolean_t zfs_is_shared_iscsi(zfs_handle_t *);
518extern int zfs_share_iscsi(zfs_handle_t *);
519extern int zfs_unshare_iscsi(zfs_handle_t *);
520extern int zfs_iscsi_perm_check(libzfs_handle_t *, char *, ucred_t *);
521extern int zfs_deleg_share_nfs(libzfs_handle_t *, char *, char *,
522 void *, void *, int, zfs_share_op_t);
523
524/*
525 * When dealing with nvlists, verify() is extremely useful
526 */
527#ifdef NDEBUG
528#define verify(EX) ((void)(EX))
529#else
530#define verify(EX) assert(EX)
531#endif
532
533/*
534 * Utility function to convert a number to a human-readable form.
535 */
536extern void zfs_nicenum(uint64_t, char *, size_t);
537extern int zfs_nicestrtonum(libzfs_handle_t *, const char *, uint64_t *);
538
539/*
540 * Given a device or file, determine if it is part of a pool.
541 */
542extern int zpool_in_use(libzfs_handle_t *, int, pool_state_t *, char **,
543 boolean_t *);
544
545/*
546 * ftyp special. Read the label from a given device.
547 */
548extern int zpool_read_label(int, nvlist_t **);
549
550/*
551 * Create and remove zvol /dev links.
552 */
553extern int zpool_create_zvol_links(zpool_handle_t *);
554extern int zpool_remove_zvol_links(zpool_handle_t *);
555
556/* is this zvol valid for use as a dump device? */
557extern int zvol_check_dump_config(char *);
558
559/*
560 * Enable and disable datasets within a pool by mounting/unmounting and
561 * sharing/unsharing them.
562 */
563extern int zpool_enable_datasets(zpool_handle_t *, const char *, int);
564extern int zpool_disable_datasets(zpool_handle_t *, boolean_t);
565
566#ifdef __cplusplus
567}
568#endif
569
570#endif /* _LIBZFS_H */
Mirror of ZFSOnLinux for Debian