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 40 extern "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 */ 54 enum { 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 */ 134 typedef struct zfs_perm_node { 135 avl_node_t z_node; 136 char z_pname[MAXPATHLEN]; 137 } zfs_perm_node_t; 138 139 typedef 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; 146 147 typedef 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 */ 160 typedef struct zfs_handle zfs_handle_t; 161 typedef struct zpool_handle zpool_handle_t; 162 typedef struct libzfs_handle libzfs_handle_t; 163 164 /* 165 * Library initialization 166 */ 167 extern libzfs_handle_t *libzfs_init(void); 168 extern void libzfs_fini(libzfs_handle_t *); 169 170 extern libzfs_handle_t *zpool_get_handle(zpool_handle_t *); 171 extern libzfs_handle_t *zfs_get_handle(zfs_handle_t *); 172 173 extern void libzfs_print_on_error(libzfs_handle_t *, boolean_t); 174 175 extern int libzfs_errno(libzfs_handle_t *); 176 extern const char *libzfs_error_action(libzfs_handle_t *); 177 extern const char *libzfs_error_description(libzfs_handle_t *); 178 179 /* 180 * Basic handle functions 181 */ 182 extern zpool_handle_t *zpool_open(libzfs_handle_t *, const char *); 183 extern zpool_handle_t *zpool_open_canfail(libzfs_handle_t *, const char *); 184 extern void zpool_close(zpool_handle_t *); 185 extern const char *zpool_get_name(zpool_handle_t *); 186 extern int zpool_get_state(zpool_handle_t *); 187 extern char *zpool_state_to_name(vdev_state_t, vdev_aux_t); 188 extern void zpool_free_handles(libzfs_handle_t *); 189 190 /* 191 * Iterate over all active pools in the system. 192 */ 193 typedef int (*zpool_iter_f)(zpool_handle_t *, void *); 194 extern int zpool_iter(libzfs_handle_t *, zpool_iter_f, void *); 195 196 /* 197 * Functions to create and destroy pools 198 */ 199 extern int zpool_create(libzfs_handle_t *, const char *, nvlist_t *, 200 nvlist_t *, nvlist_t *); 201 extern int zpool_destroy(zpool_handle_t *); 202 extern int zpool_add(zpool_handle_t *, nvlist_t *); 203 204 /* 205 * Functions to manipulate pool and vdev state 206 */ 207 extern int zpool_scrub(zpool_handle_t *, pool_scrub_type_t); 208 extern int zpool_clear(zpool_handle_t *, const char *); 209 210 extern int zpool_vdev_online(zpool_handle_t *, const char *, int, 211 vdev_state_t *); 212 extern int zpool_vdev_offline(zpool_handle_t *, const char *, boolean_t); 213 extern int zpool_vdev_attach(zpool_handle_t *, const char *, 214 const char *, nvlist_t *, int); 215 extern int zpool_vdev_detach(zpool_handle_t *, const char *); 216 extern int zpool_vdev_remove(zpool_handle_t *, const char *); 217 218 extern int zpool_vdev_fault(zpool_handle_t *, uint64_t); 219 extern int zpool_vdev_degrade(zpool_handle_t *, uint64_t); 220 extern int zpool_vdev_clear(zpool_handle_t *, uint64_t); 221 222 extern nvlist_t *zpool_find_vdev(zpool_handle_t *, const char *, boolean_t *, 223 boolean_t *, boolean_t *); 224 extern int zpool_label_disk(libzfs_handle_t *, zpool_handle_t *, char *); 225 226 /* 227 * Functions to manage pool properties 228 */ 229 extern int zpool_set_prop(zpool_handle_t *, const char *, const char *); 230 extern int zpool_get_prop(zpool_handle_t *, zpool_prop_t, char *, 231 size_t proplen, zprop_source_t *); 232 extern uint64_t zpool_get_prop_int(zpool_handle_t *, zpool_prop_t, 233 zprop_source_t *); 234 235 extern const char *zpool_prop_to_name(zpool_prop_t); 236 extern const char *zpool_prop_values(zpool_prop_t); 237 238 /* 239 * Pool health statistics. 240 */ 241 typedef 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; 277 278 extern zpool_status_t zpool_get_status(zpool_handle_t *, char **); 279 extern zpool_status_t zpool_import_status(nvlist_t *, char **); 280 281 /* 282 * Statistics and configuration functions. 283 */ 284 extern nvlist_t *zpool_get_config(zpool_handle_t *, nvlist_t **); 285 extern int zpool_refresh_stats(zpool_handle_t *, boolean_t *); 286 extern int zpool_get_errlog(zpool_handle_t *, nvlist_t **); 287 288 /* 289 * Import and export functions 290 */ 291 extern int zpool_export(zpool_handle_t *, boolean_t); 292 extern int zpool_export_force(zpool_handle_t *); 293 extern int zpool_import(libzfs_handle_t *, nvlist_t *, const char *, 294 char *altroot); 295 extern int zpool_import_props(libzfs_handle_t *, nvlist_t *, const char *, 296 nvlist_t *, boolean_t); 297 298 /* 299 * Search for pools to import 300 */ 301 extern nvlist_t *zpool_find_import(libzfs_handle_t *, int, char **); 302 extern nvlist_t *zpool_find_import_cached(libzfs_handle_t *, const char *, 303 char *, uint64_t); 304 extern nvlist_t *zpool_find_import_byname(libzfs_handle_t *, int, char **, 305 char *); 306 extern nvlist_t *zpool_find_import_byguid(libzfs_handle_t *, int, char **, 307 uint64_t); 308 extern nvlist_t *zpool_find_import_activeok(libzfs_handle_t *, int, char **); 309 310 /* 311 * Miscellaneous pool functions 312 */ 313 struct zfs_cmd; 314 315 extern char *zpool_vdev_name(libzfs_handle_t *, zpool_handle_t *, nvlist_t *); 316 extern int zpool_upgrade(zpool_handle_t *, uint64_t); 317 extern int zpool_get_history(zpool_handle_t *, nvlist_t **); 318 extern void zpool_set_history_str(const char *subcommand, int argc, 319 char **argv, char *history_str); 320 extern int zpool_stage_history(libzfs_handle_t *, const char *); 321 extern void zpool_obj_to_path(zpool_handle_t *, uint64_t, uint64_t, char *, 322 size_t len); 323 extern int zfs_ioctl(libzfs_handle_t *, int, struct zfs_cmd *); 324 extern int zpool_get_physpath(zpool_handle_t *, char *); 325 /* 326 * Basic handle manipulations. These functions do not create or destroy the 327 * underlying datasets, only the references to them. 328 */ 329 extern zfs_handle_t *zfs_open(libzfs_handle_t *, const char *, int); 330 extern void zfs_close(zfs_handle_t *); 331 extern zfs_type_t zfs_get_type(const zfs_handle_t *); 332 extern const char *zfs_get_name(const zfs_handle_t *); 333 extern zpool_handle_t *zfs_get_pool_handle(const zfs_handle_t *); 334 335 /* 336 * Property management functions. Some functions are shared with the kernel, 337 * and are found in sys/fs/zfs.h. 338 */ 339 340 /* 341 * zfs dataset property management 342 */ 343 extern const char *zfs_prop_default_string(zfs_prop_t); 344 extern uint64_t zfs_prop_default_numeric(zfs_prop_t); 345 extern const char *zfs_prop_column_name(zfs_prop_t); 346 extern boolean_t zfs_prop_align_right(zfs_prop_t); 347 348 extern nvlist_t *zfs_valid_proplist(libzfs_handle_t *, zfs_type_t, 349 nvlist_t *, uint64_t, zfs_handle_t *, const char *); 350 351 extern const char *zfs_prop_to_name(zfs_prop_t); 352 extern int zfs_prop_set(zfs_handle_t *, const char *, const char *); 353 extern int zfs_prop_get(zfs_handle_t *, zfs_prop_t, char *, size_t, 354 zprop_source_t *, char *, size_t, boolean_t); 355 extern int zfs_prop_get_numeric(zfs_handle_t *, zfs_prop_t, uint64_t *, 356 zprop_source_t *, char *, size_t); 357 extern uint64_t zfs_prop_get_int(zfs_handle_t *, zfs_prop_t); 358 extern int zfs_prop_inherit(zfs_handle_t *, const char *); 359 extern const char *zfs_prop_values(zfs_prop_t); 360 extern int zfs_prop_is_string(zfs_prop_t prop); 361 extern nvlist_t *zfs_get_user_props(zfs_handle_t *); 362 363 typedef struct zprop_list { 364 int pl_prop; 365 char *pl_user_prop; 366 struct zprop_list *pl_next; 367 boolean_t pl_all; 368 size_t pl_width; 369 boolean_t pl_fixed; 370 } zprop_list_t; 371 372 extern int zfs_expand_proplist(zfs_handle_t *, zprop_list_t **); 373 374 #define ZFS_MOUNTPOINT_NONE "none" 375 #define ZFS_MOUNTPOINT_LEGACY "legacy" 376 377 /* 378 * zpool property management 379 */ 380 extern int zpool_expand_proplist(zpool_handle_t *, zprop_list_t **); 381 extern const char *zpool_prop_default_string(zpool_prop_t); 382 extern uint64_t zpool_prop_default_numeric(zpool_prop_t); 383 extern const char *zpool_prop_column_name(zpool_prop_t); 384 extern boolean_t zpool_prop_align_right(zpool_prop_t); 385 386 /* 387 * Functions shared by zfs and zpool property management. 388 */ 389 extern int zprop_iter(zprop_func func, void *cb, boolean_t show_all, 390 boolean_t ordered, zfs_type_t type); 391 extern int zprop_get_list(libzfs_handle_t *, char *, zprop_list_t **, 392 zfs_type_t); 393 extern void zprop_free_list(zprop_list_t *); 394 395 /* 396 * Functions for printing zfs or zpool properties 397 */ 398 typedef struct zprop_get_cbdata { 399 int cb_sources; 400 int cb_columns[4]; 401 int cb_colwidths[5]; 402 boolean_t cb_scripted; 403 boolean_t cb_literal; 404 boolean_t cb_first; 405 zprop_list_t *cb_proplist; 406 zfs_type_t cb_type; 407 } zprop_get_cbdata_t; 408 409 void zprop_print_one_property(const char *, zprop_get_cbdata_t *, 410 const char *, const char *, zprop_source_t, const char *); 411 412 #define GET_COL_NAME 1 413 #define GET_COL_PROPERTY 2 414 #define GET_COL_VALUE 3 415 #define GET_COL_SOURCE 4 416 417 /* 418 * Iterator functions. 419 */ 420 typedef int (*zfs_iter_f)(zfs_handle_t *, void *); 421 extern int zfs_iter_root(libzfs_handle_t *, zfs_iter_f, void *); 422 extern int zfs_iter_children(zfs_handle_t *, zfs_iter_f, void *); 423 extern int zfs_iter_dependents(zfs_handle_t *, boolean_t, zfs_iter_f, void *); 424 extern int zfs_iter_filesystems(zfs_handle_t *, zfs_iter_f, void *); 425 extern int zfs_iter_snapshots(zfs_handle_t *, zfs_iter_f, void *); 426 427 /* 428 * Functions to create and destroy datasets. 429 */ 430 extern int zfs_create(libzfs_handle_t *, const char *, zfs_type_t, 431 nvlist_t *); 432 extern int zfs_create_ancestors(libzfs_handle_t *, const char *); 433 extern int zfs_destroy(zfs_handle_t *); 434 extern int zfs_destroy_snaps(zfs_handle_t *, char *); 435 extern int zfs_clone(zfs_handle_t *, const char *, nvlist_t *); 436 extern int zfs_snapshot(libzfs_handle_t *, const char *, boolean_t, nvlist_t *); 437 extern int zfs_rollback(zfs_handle_t *, zfs_handle_t *, boolean_t); 438 extern int zfs_rename(zfs_handle_t *, const char *, boolean_t); 439 extern int zfs_send(zfs_handle_t *, const char *, const char *, 440 boolean_t, boolean_t, boolean_t, boolean_t, int); 441 extern int zfs_promote(zfs_handle_t *); 442 443 typedef struct recvflags { 444 /* print informational messages (ie, -v was specified) */ 445 int verbose : 1; 446 447 /* the destination is a prefix, not the exact fs (ie, -d) */ 448 int isprefix : 1; 449 450 /* do not actually do the recv, just check if it would work (ie, -n) */ 451 int dryrun : 1; 452 453 /* rollback/destroy filesystems as necessary (eg, -F) */ 454 int force : 1; 455 456 /* set "canmount=off" on all modified filesystems */ 457 int canmountoff : 1; 458 459 /* byteswap flag is used internally; callers need not specify */ 460 int byteswap : 1; 461 } recvflags_t; 462 463 extern int zfs_receive(libzfs_handle_t *, const char *, recvflags_t, 464 int, avl_tree_t *); 465 466 /* 467 * Miscellaneous functions. 468 */ 469 extern const char *zfs_type_to_name(zfs_type_t); 470 extern void zfs_refresh_properties(zfs_handle_t *); 471 extern int zfs_name_valid(const char *, zfs_type_t); 472 extern zfs_handle_t *zfs_path_to_zhandle(libzfs_handle_t *, char *, zfs_type_t); 473 extern boolean_t zfs_dataset_exists(libzfs_handle_t *, const char *, 474 zfs_type_t); 475 extern int zfs_spa_version(zfs_handle_t *, int *); 476 477 /* 478 * dataset permission functions. 479 */ 480 extern int zfs_perm_set(zfs_handle_t *, nvlist_t *); 481 extern int zfs_perm_remove(zfs_handle_t *, nvlist_t *); 482 extern int zfs_build_perms(zfs_handle_t *, char *, char *, 483 zfs_deleg_who_type_t, zfs_deleg_inherit_t, nvlist_t **nvlist_t); 484 extern int zfs_perm_get(zfs_handle_t *, zfs_allow_t **); 485 extern void zfs_free_allows(zfs_allow_t *); 486 extern void zfs_deleg_permissions(void); 487 488 /* 489 * Mount support functions. 490 */ 491 extern boolean_t is_mounted(libzfs_handle_t *, const char *special, char **); 492 extern boolean_t zfs_is_mounted(zfs_handle_t *, char **); 493 extern int zfs_mount(zfs_handle_t *, const char *, int); 494 extern int zfs_unmount(zfs_handle_t *, const char *, int); 495 extern int zfs_unmountall(zfs_handle_t *, int); 496 497 /* 498 * Share support functions. 499 */ 500 extern boolean_t zfs_is_shared(zfs_handle_t *); 501 extern int zfs_share(zfs_handle_t *); 502 extern int zfs_unshare(zfs_handle_t *); 503 504 /* 505 * Protocol-specific share support functions. 506 */ 507 extern boolean_t zfs_is_shared_nfs(zfs_handle_t *, char **); 508 extern boolean_t zfs_is_shared_smb(zfs_handle_t *, char **); 509 extern int zfs_share_nfs(zfs_handle_t *); 510 extern int zfs_share_smb(zfs_handle_t *); 511 extern int zfs_shareall(zfs_handle_t *); 512 extern int zfs_unshare_nfs(zfs_handle_t *, const char *); 513 extern int zfs_unshare_smb(zfs_handle_t *, const char *); 514 extern int zfs_unshareall_nfs(zfs_handle_t *); 515 extern int zfs_unshareall_smb(zfs_handle_t *); 516 extern int zfs_unshareall_bypath(zfs_handle_t *, const char *); 517 extern int zfs_unshareall(zfs_handle_t *); 518 extern boolean_t zfs_is_shared_iscsi(zfs_handle_t *); 519 extern int zfs_share_iscsi(zfs_handle_t *); 520 extern int zfs_unshare_iscsi(zfs_handle_t *); 521 extern int zfs_iscsi_perm_check(libzfs_handle_t *, char *, ucred_t *); 522 extern int zfs_deleg_share_nfs(libzfs_handle_t *, char *, char *, 523 void *, void *, int, zfs_share_op_t); 524 525 /* 526 * When dealing with nvlists, verify() is extremely useful 527 */ 528 #ifdef NDEBUG 529 #define verify(EX) ((void)(EX)) 530 #else 531 #define verify(EX) assert(EX) 532 #endif 533 534 /* 535 * Utility function to convert a number to a human-readable form. 536 */ 537 extern void zfs_nicenum(uint64_t, char *, size_t); 538 extern int zfs_nicestrtonum(libzfs_handle_t *, const char *, uint64_t *); 539 540 /* 541 * Given a device or file, determine if it is part of a pool. 542 */ 543 extern int zpool_in_use(libzfs_handle_t *, int, pool_state_t *, char **, 544 boolean_t *); 545 546 /* 547 * ftyp special. Read the label from a given device. 548 */ 549 extern int zpool_read_label(int, nvlist_t **); 550 551 /* 552 * Create and remove zvol /dev links. 553 */ 554 extern int zpool_create_zvol_links(zpool_handle_t *); 555 extern int zpool_remove_zvol_links(zpool_handle_t *); 556 557 /* is this zvol valid for use as a dump device? */ 558 extern int zvol_check_dump_config(char *); 559 560 /* 561 * Enable and disable datasets within a pool by mounting/unmounting and 562 * sharing/unsharing them. 563 */ 564 extern int zpool_enable_datasets(zpool_handle_t *, const char *, int); 565 extern int zpool_disable_datasets(zpool_handle_t *, boolean_t); 566 567 #ifdef __cplusplus 568 } 569 #endif 570 571 #endif /* _LIBZFS_H */ 572