libzfs.h revision 7656:2621e50fdf4a
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 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 */ 116 EZFS_NOTSUP, /* ops not supported on this dataset */ 117 EZFS_ACTIVE_SPARE, /* pool has active shared spare devices */ 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); 188extern void zpool_free_handles(libzfs_handle_t *); 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 *, 200 nvlist_t *, nvlist_t *); 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 *, 223 boolean_t *, boolean_t *); 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 */ 257 ZPOOL_STATUS_IO_FAILURE_WAIT, /* failed I/O, failmode 'wait' */ 258 ZPOOL_STATUS_IO_FAILURE_CONTINUE, /* failed I/O, failmode 'continue' */ 259 ZPOOL_STATUS_FAULTED_DEV_R, /* faulted device with replicas */ 260 ZPOOL_STATUS_FAULTED_DEV_NR, /* faulted device with no replicas */ 261 ZPOOL_STATUS_BAD_LOG, /* cannot read log chain(s) */ 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 */ 291extern int zpool_export(zpool_handle_t *, boolean_t); 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 *, 295 nvlist_t *, boolean_t); 296 297/* 298 * Search for pools to import 299 */ 300extern nvlist_t *zpool_find_import(libzfs_handle_t *, int, char **); 301extern nvlist_t *zpool_find_import_cached(libzfs_handle_t *, const char *, 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 **); 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 *); 323extern int zpool_get_physpath(zpool_handle_t *, char *); 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 *); 332extern zpool_handle_t *zfs_get_pool_handle(const zfs_handle_t *); 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 347extern nvlist_t *zfs_valid_proplist(libzfs_handle_t *, zfs_type_t, 348 nvlist_t *, uint64_t, zfs_handle_t *, const char *); 349 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 *); 435extern int zfs_snapshot(libzfs_handle_t *, const char *, boolean_t, nvlist_t *); 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 */ 571