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 2007 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 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <assert.h> 33 #include <libnvpair.h> 34 #include <sys/param.h> 35 #include <sys/types.h> 36 #include <sys/varargs.h> 37 #include <sys/fs/zfs.h> 38 #include <sys/avl.h> 39 #include <ucred.h> 40 41 #ifdef __cplusplus 42 extern "C" { 43 #endif 44 45 /* 46 * Miscellaneous ZFS constants 47 */ 48 #define ZFS_MAXNAMELEN MAXNAMELEN 49 #define ZPOOL_MAXNAMELEN MAXNAMELEN 50 #define ZFS_MAXPROPLEN MAXPATHLEN 51 #define ZPOOL_MAXPROPLEN MAXPATHLEN 52 53 /* 54 * libzfs errors 55 */ 56 enum { 57 EZFS_NOMEM = 2000, /* out of memory */ 58 EZFS_BADPROP, /* invalid property value */ 59 EZFS_PROPREADONLY, /* cannot set readonly property */ 60 EZFS_PROPTYPE, /* property does not apply to dataset type */ 61 EZFS_PROPNONINHERIT, /* property is not inheritable */ 62 EZFS_PROPSPACE, /* bad quota or reservation */ 63 EZFS_BADTYPE, /* dataset is not of appropriate type */ 64 EZFS_BUSY, /* pool or dataset is busy */ 65 EZFS_EXISTS, /* pool or dataset already exists */ 66 EZFS_NOENT, /* no such pool or dataset */ 67 EZFS_BADSTREAM, /* bad backup stream */ 68 EZFS_DSREADONLY, /* dataset is readonly */ 69 EZFS_VOLTOOBIG, /* volume is too large for 32-bit system */ 70 EZFS_VOLHASDATA, /* volume already contains data */ 71 EZFS_INVALIDNAME, /* invalid dataset name */ 72 EZFS_BADRESTORE, /* unable to restore to destination */ 73 EZFS_BADBACKUP, /* backup failed */ 74 EZFS_BADTARGET, /* bad attach/detach/replace target */ 75 EZFS_NODEVICE, /* no such device in pool */ 76 EZFS_BADDEV, /* invalid device to add */ 77 EZFS_NOREPLICAS, /* no valid replicas */ 78 EZFS_RESILVERING, /* currently resilvering */ 79 EZFS_BADVERSION, /* unsupported version */ 80 EZFS_POOLUNAVAIL, /* pool is currently unavailable */ 81 EZFS_DEVOVERFLOW, /* too many devices in one vdev */ 82 EZFS_BADPATH, /* must be an absolute path */ 83 EZFS_CROSSTARGET, /* rename or clone across pool or dataset */ 84 EZFS_ZONED, /* used improperly in local zone */ 85 EZFS_MOUNTFAILED, /* failed to mount dataset */ 86 EZFS_UMOUNTFAILED, /* failed to unmount dataset */ 87 EZFS_UNSHARENFSFAILED, /* unshare(1M) failed */ 88 EZFS_SHARENFSFAILED, /* share(1M) failed */ 89 EZFS_DEVLINKS, /* failed to create zvol links */ 90 EZFS_PERM, /* permission denied */ 91 EZFS_NOSPC, /* out of space */ 92 EZFS_IO, /* I/O error */ 93 EZFS_INTR, /* signal received */ 94 EZFS_ISSPARE, /* device is a hot spare */ 95 EZFS_INVALCONFIG, /* invalid vdev configuration */ 96 EZFS_RECURSIVE, /* recursive dependency */ 97 EZFS_NOHISTORY, /* no history object */ 98 EZFS_UNSHAREISCSIFAILED, /* iscsitgtd failed request to unshare */ 99 EZFS_SHAREISCSIFAILED, /* iscsitgtd failed request to share */ 100 EZFS_POOLPROPS, /* couldn't retrieve pool props */ 101 EZFS_POOL_NOTSUP, /* ops not supported for this type of pool */ 102 EZFS_POOL_INVALARG, /* invalid argument for this pool operation */ 103 EZFS_NAMETOOLONG, /* dataset name is too long */ 104 EZFS_OPENFAILED, /* open of device failed */ 105 EZFS_NOCAP, /* couldn't get capacity */ 106 EZFS_LABELFAILED, /* write of label failed */ 107 EZFS_ISCSISVCUNAVAIL, /* iscsi service unavailable */ 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_PERMRDONLY, /* pemissions are readonly */ 113 EZFS_UNSHARESMBFAILED, /* failed to unshare over smb */ 114 EZFS_SHARESMBFAILED, /* failed to share over smb */ 115 EZFS_BADCACHE, /* bad cache file */ 116 EZFS_ISL2CACHE, /* device is for the level 2 ARC */ 117 EZFS_UNKNOWN 118 }; 119 120 /* 121 * The following data structures are all part 122 * of the zfs_allow_t data structure which is 123 * used for printing 'allow' permissions. 124 * It is a linked list of zfs_allow_t's which 125 * then contain avl tree's for user/group/sets/... 126 * and each one of the entries in those trees have 127 * avl tree's for the permissions they belong to and 128 * whether they are local,descendent or local+descendent 129 * permissions. The AVL trees are used primarily for 130 * sorting purposes, but also so that we can quickly find 131 * a given user and or permission. 132 */ 133 typedef struct zfs_perm_node { 134 avl_node_t z_node; 135 char z_pname[MAXPATHLEN]; 136 } zfs_perm_node_t; 137 138 typedef struct zfs_allow_node { 139 avl_node_t z_node; 140 char z_key[MAXPATHLEN]; /* name, such as joe */ 141 avl_tree_t z_localdescend; /* local+descendent perms */ 142 avl_tree_t z_local; /* local permissions */ 143 avl_tree_t z_descend; /* descendent permissions */ 144 } zfs_allow_node_t; 145 146 typedef struct zfs_allow { 147 struct zfs_allow *z_next; 148 char z_setpoint[MAXPATHLEN]; 149 avl_tree_t z_sets; 150 avl_tree_t z_crperms; 151 avl_tree_t z_user; 152 avl_tree_t z_group; 153 avl_tree_t z_everyone; 154 } zfs_allow_t; 155 156 /* 157 * Basic handle types 158 */ 159 typedef struct zfs_handle zfs_handle_t; 160 typedef struct zpool_handle zpool_handle_t; 161 typedef struct libzfs_handle libzfs_handle_t; 162 163 /* 164 * Library initialization 165 */ 166 extern libzfs_handle_t *libzfs_init(void); 167 extern void libzfs_fini(libzfs_handle_t *); 168 169 extern libzfs_handle_t *zpool_get_handle(zpool_handle_t *); 170 extern libzfs_handle_t *zfs_get_handle(zfs_handle_t *); 171 172 extern void libzfs_print_on_error(libzfs_handle_t *, boolean_t); 173 174 extern int libzfs_errno(libzfs_handle_t *); 175 extern const char *libzfs_error_action(libzfs_handle_t *); 176 extern const char *libzfs_error_description(libzfs_handle_t *); 177 178 /* 179 * Basic handle functions 180 */ 181 extern zpool_handle_t *zpool_open(libzfs_handle_t *, const char *); 182 extern zpool_handle_t *zpool_open_canfail(libzfs_handle_t *, const char *); 183 extern void zpool_close(zpool_handle_t *); 184 extern const char *zpool_get_name(zpool_handle_t *); 185 extern int zpool_get_state(zpool_handle_t *); 186 extern char *zpool_state_to_name(vdev_state_t, vdev_aux_t); 187 188 /* 189 * Iterate over all active pools in the system. 190 */ 191 typedef int (*zpool_iter_f)(zpool_handle_t *, void *); 192 extern int zpool_iter(libzfs_handle_t *, zpool_iter_f, void *); 193 194 /* 195 * Functions to create and destroy pools 196 */ 197 extern int zpool_create(libzfs_handle_t *, const char *, nvlist_t *, 198 nvlist_t *); 199 extern int zpool_destroy(zpool_handle_t *); 200 extern int zpool_add(zpool_handle_t *, nvlist_t *); 201 202 /* 203 * Functions to manipulate pool and vdev state 204 */ 205 extern int zpool_scrub(zpool_handle_t *, pool_scrub_type_t); 206 extern int zpool_clear(zpool_handle_t *, const char *); 207 208 extern int zpool_vdev_online(zpool_handle_t *, const char *, int, 209 vdev_state_t *); 210 extern int zpool_vdev_offline(zpool_handle_t *, const char *, boolean_t); 211 extern int zpool_vdev_attach(zpool_handle_t *, const char *, 212 const char *, nvlist_t *, int); 213 extern int zpool_vdev_detach(zpool_handle_t *, const char *); 214 extern int zpool_vdev_remove(zpool_handle_t *, const char *); 215 216 extern int zpool_vdev_fault(zpool_handle_t *, uint64_t); 217 extern int zpool_vdev_degrade(zpool_handle_t *, uint64_t); 218 extern int zpool_vdev_clear(zpool_handle_t *, uint64_t); 219 220 extern nvlist_t *zpool_find_vdev(zpool_handle_t *, const char *, boolean_t *, 221 boolean_t *); 222 extern int zpool_label_disk(libzfs_handle_t *, zpool_handle_t *, char *); 223 224 /* 225 * Functions to manage pool properties 226 */ 227 extern int zpool_set_prop(zpool_handle_t *, const char *, const char *); 228 extern int zpool_get_prop(zpool_handle_t *, zpool_prop_t, char *, 229 size_t proplen, zprop_source_t *); 230 extern uint64_t zpool_get_prop_int(zpool_handle_t *, zpool_prop_t, 231 zprop_source_t *); 232 233 extern const char *zpool_prop_to_name(zpool_prop_t); 234 extern const char *zpool_prop_values(zpool_prop_t); 235 236 /* 237 * Pool health statistics. 238 */ 239 typedef enum { 240 /* 241 * The following correspond to faults as defined in the (fault.fs.zfs.*) 242 * event namespace. Each is associated with a corresponding message ID. 243 */ 244 ZPOOL_STATUS_CORRUPT_CACHE, /* corrupt /kernel/drv/zpool.cache */ 245 ZPOOL_STATUS_MISSING_DEV_R, /* missing device with replicas */ 246 ZPOOL_STATUS_MISSING_DEV_NR, /* missing device with no replicas */ 247 ZPOOL_STATUS_CORRUPT_LABEL_R, /* bad device label with replicas */ 248 ZPOOL_STATUS_CORRUPT_LABEL_NR, /* bad device label with no replicas */ 249 ZPOOL_STATUS_BAD_GUID_SUM, /* sum of device guids didn't match */ 250 ZPOOL_STATUS_CORRUPT_POOL, /* pool metadata is corrupted */ 251 ZPOOL_STATUS_CORRUPT_DATA, /* data errors in user (meta)data */ 252 ZPOOL_STATUS_FAILING_DEV, /* device experiencing errors */ 253 ZPOOL_STATUS_VERSION_NEWER, /* newer on-disk version */ 254 ZPOOL_STATUS_HOSTID_MISMATCH, /* last accessed by another system */ 255 ZPOOL_STATUS_FAULTED_DEV_R, /* faulted device with replicas */ 256 ZPOOL_STATUS_FAULTED_DEV_NR, /* faulted device with no replicas */ 257 258 /* 259 * The following are not faults per se, but still an error possibly 260 * requiring administrative attention. There is no corresponding 261 * message ID. 262 */ 263 ZPOOL_STATUS_VERSION_OLDER, /* older on-disk version */ 264 ZPOOL_STATUS_RESILVERING, /* device being resilvered */ 265 ZPOOL_STATUS_OFFLINE_DEV, /* device online */ 266 267 /* 268 * Finally, the following indicates a healthy pool. 269 */ 270 ZPOOL_STATUS_OK 271 } zpool_status_t; 272 273 extern zpool_status_t zpool_get_status(zpool_handle_t *, char **); 274 extern zpool_status_t zpool_import_status(nvlist_t *, char **); 275 276 /* 277 * Statistics and configuration functions. 278 */ 279 extern nvlist_t *zpool_get_config(zpool_handle_t *, nvlist_t **); 280 extern int zpool_refresh_stats(zpool_handle_t *, boolean_t *); 281 extern int zpool_get_errlog(zpool_handle_t *, nvlist_t **); 282 283 /* 284 * Import and export functions 285 */ 286 extern int zpool_export(zpool_handle_t *); 287 extern int zpool_import(libzfs_handle_t *, nvlist_t *, const char *, 288 char *altroot); 289 extern int zpool_import_props(libzfs_handle_t *, nvlist_t *, const char *, 290 nvlist_t *); 291 292 /* 293 * Search for pools to import 294 */ 295 extern nvlist_t *zpool_find_import(libzfs_handle_t *, int, char **); 296 extern nvlist_t *zpool_find_import_cached(libzfs_handle_t *, const char *); 297 298 /* 299 * Miscellaneous pool functions 300 */ 301 struct zfs_cmd; 302 303 extern char *zpool_vdev_name(libzfs_handle_t *, zpool_handle_t *, nvlist_t *); 304 extern int zpool_upgrade(zpool_handle_t *, uint64_t); 305 extern int zpool_get_history(zpool_handle_t *, nvlist_t **); 306 extern void zpool_set_history_str(const char *subcommand, int argc, 307 char **argv, char *history_str); 308 extern int zpool_stage_history(libzfs_handle_t *, const char *); 309 extern void zpool_obj_to_path(zpool_handle_t *, uint64_t, uint64_t, char *, 310 size_t len); 311 extern int zfs_ioctl(libzfs_handle_t *, int, struct zfs_cmd *); 312 /* 313 * Basic handle manipulations. These functions do not create or destroy the 314 * underlying datasets, only the references to them. 315 */ 316 extern zfs_handle_t *zfs_open(libzfs_handle_t *, const char *, int); 317 extern void zfs_close(zfs_handle_t *); 318 extern zfs_type_t zfs_get_type(const zfs_handle_t *); 319 extern const char *zfs_get_name(const zfs_handle_t *); 320 321 /* 322 * Property management functions. Some functions are shared with the kernel, 323 * and are found in sys/fs/zfs.h. 324 */ 325 326 /* 327 * zfs dataset property management 328 */ 329 extern const char *zfs_prop_default_string(zfs_prop_t); 330 extern uint64_t zfs_prop_default_numeric(zfs_prop_t); 331 extern const char *zfs_prop_column_name(zfs_prop_t); 332 extern boolean_t zfs_prop_align_right(zfs_prop_t); 333 334 extern const char *zfs_prop_to_name(zfs_prop_t); 335 extern int zfs_prop_set(zfs_handle_t *, const char *, const char *); 336 extern int zfs_prop_get(zfs_handle_t *, zfs_prop_t, char *, size_t, 337 zprop_source_t *, char *, size_t, boolean_t); 338 extern int zfs_prop_get_numeric(zfs_handle_t *, zfs_prop_t, uint64_t *, 339 zprop_source_t *, char *, size_t); 340 extern uint64_t zfs_prop_get_int(zfs_handle_t *, zfs_prop_t); 341 extern int zfs_prop_inherit(zfs_handle_t *, const char *); 342 extern const char *zfs_prop_values(zfs_prop_t); 343 extern int zfs_prop_is_string(zfs_prop_t prop); 344 extern nvlist_t *zfs_get_user_props(zfs_handle_t *); 345 346 typedef struct zprop_list { 347 int pl_prop; 348 char *pl_user_prop; 349 struct zprop_list *pl_next; 350 boolean_t pl_all; 351 size_t pl_width; 352 boolean_t pl_fixed; 353 } zprop_list_t; 354 355 extern int zfs_expand_proplist(zfs_handle_t *, zprop_list_t **); 356 357 #define ZFS_MOUNTPOINT_NONE "none" 358 #define ZFS_MOUNTPOINT_LEGACY "legacy" 359 360 /* 361 * zpool property management 362 */ 363 extern int zpool_expand_proplist(zpool_handle_t *, zprop_list_t **); 364 extern const char *zpool_prop_default_string(zpool_prop_t); 365 extern uint64_t zpool_prop_default_numeric(zpool_prop_t); 366 extern const char *zpool_prop_column_name(zpool_prop_t); 367 extern boolean_t zpool_prop_align_right(zpool_prop_t); 368 369 /* 370 * Functions shared by zfs and zpool property management. 371 */ 372 extern int zprop_iter(zprop_func func, void *cb, boolean_t show_all, 373 boolean_t ordered, zfs_type_t type); 374 extern int zprop_get_list(libzfs_handle_t *, char *, zprop_list_t **, 375 zfs_type_t); 376 extern void zprop_free_list(zprop_list_t *); 377 378 /* 379 * Functions for printing zfs or zpool properties 380 */ 381 typedef struct zprop_get_cbdata { 382 int cb_sources; 383 int cb_columns[4]; 384 int cb_colwidths[5]; 385 boolean_t cb_scripted; 386 boolean_t cb_literal; 387 boolean_t cb_first; 388 zprop_list_t *cb_proplist; 389 zfs_type_t cb_type; 390 } zprop_get_cbdata_t; 391 392 void zprop_print_one_property(const char *, zprop_get_cbdata_t *, 393 const char *, const char *, zprop_source_t, const char *); 394 395 #define GET_COL_NAME 1 396 #define GET_COL_PROPERTY 2 397 #define GET_COL_VALUE 3 398 #define GET_COL_SOURCE 4 399 400 /* 401 * Iterator functions. 402 */ 403 typedef int (*zfs_iter_f)(zfs_handle_t *, void *); 404 extern int zfs_iter_root(libzfs_handle_t *, zfs_iter_f, void *); 405 extern int zfs_iter_children(zfs_handle_t *, zfs_iter_f, void *); 406 extern int zfs_iter_dependents(zfs_handle_t *, boolean_t, zfs_iter_f, void *); 407 extern int zfs_iter_filesystems(zfs_handle_t *, zfs_iter_f, void *); 408 extern int zfs_iter_snapshots(zfs_handle_t *, zfs_iter_f, void *); 409 410 /* 411 * Functions to create and destroy datasets. 412 */ 413 extern int zfs_create(libzfs_handle_t *, const char *, zfs_type_t, 414 nvlist_t *); 415 extern int zfs_create_ancestors(libzfs_handle_t *, const char *); 416 extern int zfs_destroy(zfs_handle_t *); 417 extern int zfs_destroy_snaps(zfs_handle_t *, char *); 418 extern int zfs_clone(zfs_handle_t *, const char *, nvlist_t *); 419 extern int zfs_snapshot(libzfs_handle_t *, const char *, boolean_t); 420 extern int zfs_rollback(zfs_handle_t *, zfs_handle_t *, boolean_t); 421 extern int zfs_rename(zfs_handle_t *, const char *, boolean_t); 422 extern int zfs_send(zfs_handle_t *, const char *, const char *, 423 boolean_t, boolean_t, boolean_t, boolean_t, int); 424 extern int zfs_promote(zfs_handle_t *); 425 426 typedef struct recvflags { 427 /* print informational messages (ie, -v was specified) */ 428 int verbose : 1; 429 430 /* the destination is a prefix, not the exact fs (ie, -d) */ 431 int isprefix : 1; 432 433 /* do not actually do the recv, just check if it would work (ie, -n) */ 434 int dryrun : 1; 435 436 /* rollback/destroy filesystems as necessary (eg, -F) */ 437 int force : 1; 438 439 /* set "canmount=off" on all modified filesystems */ 440 int canmountoff : 1; 441 442 /* byteswap flag is used internally; callers need not specify */ 443 int byteswap : 1; 444 } recvflags_t; 445 446 extern int zfs_receive(libzfs_handle_t *, const char *, recvflags_t, 447 int, avl_tree_t *); 448 449 /* 450 * Miscellaneous functions. 451 */ 452 extern const char *zfs_type_to_name(zfs_type_t); 453 extern void zfs_refresh_properties(zfs_handle_t *); 454 extern int zfs_name_valid(const char *, zfs_type_t); 455 extern zfs_handle_t *zfs_path_to_zhandle(libzfs_handle_t *, char *, zfs_type_t); 456 extern boolean_t zfs_dataset_exists(libzfs_handle_t *, const char *, 457 zfs_type_t); 458 extern int zfs_spa_version(zfs_handle_t *, int *); 459 460 /* 461 * dataset permission functions. 462 */ 463 extern int zfs_perm_set(zfs_handle_t *, nvlist_t *); 464 extern int zfs_perm_remove(zfs_handle_t *, nvlist_t *); 465 extern int zfs_build_perms(zfs_handle_t *, char *, char *, 466 zfs_deleg_who_type_t, zfs_deleg_inherit_t, nvlist_t **nvlist_t); 467 extern int zfs_perm_get(zfs_handle_t *, zfs_allow_t **); 468 extern void zfs_free_allows(zfs_allow_t *); 469 470 /* 471 * Mount support functions. 472 */ 473 extern boolean_t is_mounted(libzfs_handle_t *, const char *special, char **); 474 extern boolean_t zfs_is_mounted(zfs_handle_t *, char **); 475 extern int zfs_mount(zfs_handle_t *, const char *, int); 476 extern int zfs_unmount(zfs_handle_t *, const char *, int); 477 extern int zfs_unmountall(zfs_handle_t *, int); 478 479 /* 480 * Share support functions. 481 */ 482 extern boolean_t zfs_is_shared(zfs_handle_t *); 483 extern int zfs_share(zfs_handle_t *); 484 extern int zfs_unshare(zfs_handle_t *); 485 486 /* 487 * Protocol-specific share support functions. 488 */ 489 extern boolean_t zfs_is_shared_nfs(zfs_handle_t *, char **); 490 extern boolean_t zfs_is_shared_smb(zfs_handle_t *, char **); 491 extern int zfs_share_nfs(zfs_handle_t *); 492 extern int zfs_share_smb(zfs_handle_t *); 493 extern int zfs_shareall(zfs_handle_t *); 494 extern int zfs_unshare_nfs(zfs_handle_t *, const char *); 495 extern int zfs_unshare_smb(zfs_handle_t *, const char *); 496 extern int zfs_unshareall_nfs(zfs_handle_t *); 497 extern int zfs_unshareall_smb(zfs_handle_t *); 498 extern int zfs_unshareall_bypath(zfs_handle_t *, const char *); 499 extern int zfs_unshareall(zfs_handle_t *); 500 extern boolean_t zfs_is_shared_iscsi(zfs_handle_t *); 501 extern int zfs_share_iscsi(zfs_handle_t *); 502 extern int zfs_unshare_iscsi(zfs_handle_t *); 503 extern int zfs_iscsi_perm_check(libzfs_handle_t *, char *, ucred_t *); 504 extern int zfs_deleg_share_nfs(libzfs_handle_t *, char *, char *, 505 void *, void *, int, zfs_share_op_t); 506 507 /* 508 * When dealing with nvlists, verify() is extremely useful 509 */ 510 #ifdef NDEBUG 511 #define verify(EX) ((void)(EX)) 512 #else 513 #define verify(EX) assert(EX) 514 #endif 515 516 /* 517 * Utility function to convert a number to a human-readable form. 518 */ 519 extern void zfs_nicenum(uint64_t, char *, size_t); 520 extern int zfs_nicestrtonum(libzfs_handle_t *, const char *, uint64_t *); 521 522 /* 523 * Given a device or file, determine if it is part of a pool. 524 */ 525 extern int zpool_in_use(libzfs_handle_t *, int, pool_state_t *, char **, 526 boolean_t *); 527 528 /* 529 * ftyp special. Read the label from a given device. 530 */ 531 extern int zpool_read_label(int, nvlist_t **); 532 533 /* 534 * Create and remove zvol /dev links. 535 */ 536 extern int zpool_create_zvol_links(zpool_handle_t *); 537 extern int zpool_remove_zvol_links(zpool_handle_t *); 538 539 /* 540 * Enable and disable datasets within a pool by mounting/unmounting and 541 * sharing/unsharing them. 542 */ 543 extern int zpool_enable_datasets(zpool_handle_t *, const char *, int); 544 extern int zpool_disable_datasets(zpool_handle_t *, boolean_t); 545 546 #ifdef __cplusplus 547 } 548 #endif 549 550 #endif /* _LIBZFS_H */ 551