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_import(libzfs_handle_t *, nvlist_t *, const char *, 293 char *altroot); 294 extern 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 */ 300 extern nvlist_t *zpool_find_import(libzfs_handle_t *, int, char **); 301 extern nvlist_t *zpool_find_import_cached(libzfs_handle_t *, const char *, 302 char *, uint64_t); 303 extern nvlist_t *zpool_find_import_byname(libzfs_handle_t *, int, char **, 304 char *); 305 extern nvlist_t *zpool_find_import_byguid(libzfs_handle_t *, int, char **, 306 uint64_t); 307 extern nvlist_t *zpool_find_import_activeok(libzfs_handle_t *, int, char **); 308 309 /* 310 * Miscellaneous pool functions 311 */ 312 struct zfs_cmd; 313 314 extern char *zpool_vdev_name(libzfs_handle_t *, zpool_handle_t *, nvlist_t *); 315 extern int zpool_upgrade(zpool_handle_t *, uint64_t); 316 extern int zpool_get_history(zpool_handle_t *, nvlist_t **); 317 extern void zpool_set_history_str(const char *subcommand, int argc, 318 char **argv, char *history_str); 319 extern int zpool_stage_history(libzfs_handle_t *, const char *); 320 extern void zpool_obj_to_path(zpool_handle_t *, uint64_t, uint64_t, char *, 321 size_t len); 322 extern int zfs_ioctl(libzfs_handle_t *, int, struct zfs_cmd *); 323 /* 324 * Basic handle manipulations. These functions do not create or destroy the 325 * underlying datasets, only the references to them. 326 */ 327 extern zfs_handle_t *zfs_open(libzfs_handle_t *, const char *, int); 328 extern void zfs_close(zfs_handle_t *); 329 extern zfs_type_t zfs_get_type(const zfs_handle_t *); 330 extern const char *zfs_get_name(const zfs_handle_t *); 331 332 /* 333 * Property management functions. Some functions are shared with the kernel, 334 * and are found in sys/fs/zfs.h. 335 */ 336 337 /* 338 * zfs dataset property management 339 */ 340 extern const char *zfs_prop_default_string(zfs_prop_t); 341 extern uint64_t zfs_prop_default_numeric(zfs_prop_t); 342 extern const char *zfs_prop_column_name(zfs_prop_t); 343 extern boolean_t zfs_prop_align_right(zfs_prop_t); 344 345 extern nvlist_t *zfs_valid_proplist(libzfs_handle_t *, zfs_type_t, 346 nvlist_t *, uint64_t, zfs_handle_t *, const char *); 347 348 extern const char *zfs_prop_to_name(zfs_prop_t); 349 extern int zfs_prop_set(zfs_handle_t *, const char *, const char *); 350 extern int zfs_prop_get(zfs_handle_t *, zfs_prop_t, char *, size_t, 351 zprop_source_t *, char *, size_t, boolean_t); 352 extern int zfs_prop_get_numeric(zfs_handle_t *, zfs_prop_t, uint64_t *, 353 zprop_source_t *, char *, size_t); 354 extern uint64_t zfs_prop_get_int(zfs_handle_t *, zfs_prop_t); 355 extern int zfs_prop_inherit(zfs_handle_t *, const char *); 356 extern const char *zfs_prop_values(zfs_prop_t); 357 extern int zfs_prop_is_string(zfs_prop_t prop); 358 extern nvlist_t *zfs_get_user_props(zfs_handle_t *); 359 360 typedef struct zprop_list { 361 int pl_prop; 362 char *pl_user_prop; 363 struct zprop_list *pl_next; 364 boolean_t pl_all; 365 size_t pl_width; 366 boolean_t pl_fixed; 367 } zprop_list_t; 368 369 extern int zfs_expand_proplist(zfs_handle_t *, zprop_list_t **); 370 371 #define ZFS_MOUNTPOINT_NONE "none" 372 #define ZFS_MOUNTPOINT_LEGACY "legacy" 373 374 /* 375 * zpool property management 376 */ 377 extern int zpool_expand_proplist(zpool_handle_t *, zprop_list_t **); 378 extern const char *zpool_prop_default_string(zpool_prop_t); 379 extern uint64_t zpool_prop_default_numeric(zpool_prop_t); 380 extern const char *zpool_prop_column_name(zpool_prop_t); 381 extern boolean_t zpool_prop_align_right(zpool_prop_t); 382 383 /* 384 * Functions shared by zfs and zpool property management. 385 */ 386 extern int zprop_iter(zprop_func func, void *cb, boolean_t show_all, 387 boolean_t ordered, zfs_type_t type); 388 extern int zprop_get_list(libzfs_handle_t *, char *, zprop_list_t **, 389 zfs_type_t); 390 extern void zprop_free_list(zprop_list_t *); 391 392 /* 393 * Functions for printing zfs or zpool properties 394 */ 395 typedef struct zprop_get_cbdata { 396 int cb_sources; 397 int cb_columns[4]; 398 int cb_colwidths[5]; 399 boolean_t cb_scripted; 400 boolean_t cb_literal; 401 boolean_t cb_first; 402 zprop_list_t *cb_proplist; 403 zfs_type_t cb_type; 404 } zprop_get_cbdata_t; 405 406 void zprop_print_one_property(const char *, zprop_get_cbdata_t *, 407 const char *, const char *, zprop_source_t, const char *); 408 409 #define GET_COL_NAME 1 410 #define GET_COL_PROPERTY 2 411 #define GET_COL_VALUE 3 412 #define GET_COL_SOURCE 4 413 414 /* 415 * Iterator functions. 416 */ 417 typedef int (*zfs_iter_f)(zfs_handle_t *, void *); 418 extern int zfs_iter_root(libzfs_handle_t *, zfs_iter_f, void *); 419 extern int zfs_iter_children(zfs_handle_t *, zfs_iter_f, void *); 420 extern int zfs_iter_dependents(zfs_handle_t *, boolean_t, zfs_iter_f, void *); 421 extern int zfs_iter_filesystems(zfs_handle_t *, zfs_iter_f, void *); 422 extern int zfs_iter_snapshots(zfs_handle_t *, zfs_iter_f, void *); 423 424 /* 425 * Functions to create and destroy datasets. 426 */ 427 extern int zfs_create(libzfs_handle_t *, const char *, zfs_type_t, 428 nvlist_t *); 429 extern int zfs_create_ancestors(libzfs_handle_t *, const char *); 430 extern int zfs_destroy(zfs_handle_t *); 431 extern int zfs_destroy_snaps(zfs_handle_t *, char *); 432 extern int zfs_clone(zfs_handle_t *, const char *, nvlist_t *); 433 extern int zfs_snapshot(libzfs_handle_t *, const char *, boolean_t, nvlist_t *); 434 extern int zfs_rollback(zfs_handle_t *, zfs_handle_t *, boolean_t); 435 extern int zfs_rename(zfs_handle_t *, const char *, boolean_t); 436 extern int zfs_send(zfs_handle_t *, const char *, const char *, 437 boolean_t, boolean_t, boolean_t, boolean_t, int); 438 extern int zfs_promote(zfs_handle_t *); 439 440 typedef struct recvflags { 441 /* print informational messages (ie, -v was specified) */ 442 int verbose : 1; 443 444 /* the destination is a prefix, not the exact fs (ie, -d) */ 445 int isprefix : 1; 446 447 /* do not actually do the recv, just check if it would work (ie, -n) */ 448 int dryrun : 1; 449 450 /* rollback/destroy filesystems as necessary (eg, -F) */ 451 int force : 1; 452 453 /* set "canmount=off" on all modified filesystems */ 454 int canmountoff : 1; 455 456 /* byteswap flag is used internally; callers need not specify */ 457 int byteswap : 1; 458 } recvflags_t; 459 460 extern int zfs_receive(libzfs_handle_t *, const char *, recvflags_t, 461 int, avl_tree_t *); 462 463 /* 464 * Miscellaneous functions. 465 */ 466 extern const char *zfs_type_to_name(zfs_type_t); 467 extern void zfs_refresh_properties(zfs_handle_t *); 468 extern int zfs_name_valid(const char *, zfs_type_t); 469 extern zfs_handle_t *zfs_path_to_zhandle(libzfs_handle_t *, char *, zfs_type_t); 470 extern boolean_t zfs_dataset_exists(libzfs_handle_t *, const char *, 471 zfs_type_t); 472 extern int zfs_spa_version(zfs_handle_t *, int *); 473 474 /* 475 * dataset permission functions. 476 */ 477 extern int zfs_perm_set(zfs_handle_t *, nvlist_t *); 478 extern int zfs_perm_remove(zfs_handle_t *, nvlist_t *); 479 extern int zfs_build_perms(zfs_handle_t *, char *, char *, 480 zfs_deleg_who_type_t, zfs_deleg_inherit_t, nvlist_t **nvlist_t); 481 extern int zfs_perm_get(zfs_handle_t *, zfs_allow_t **); 482 extern void zfs_free_allows(zfs_allow_t *); 483 extern void zfs_deleg_permissions(void); 484 485 /* 486 * Mount support functions. 487 */ 488 extern boolean_t is_mounted(libzfs_handle_t *, const char *special, char **); 489 extern boolean_t zfs_is_mounted(zfs_handle_t *, char **); 490 extern int zfs_mount(zfs_handle_t *, const char *, int); 491 extern int zfs_unmount(zfs_handle_t *, const char *, int); 492 extern int zfs_unmountall(zfs_handle_t *, int); 493 494 /* 495 * Share support functions. 496 */ 497 extern boolean_t zfs_is_shared(zfs_handle_t *); 498 extern int zfs_share(zfs_handle_t *); 499 extern int zfs_unshare(zfs_handle_t *); 500 501 /* 502 * Protocol-specific share support functions. 503 */ 504 extern boolean_t zfs_is_shared_nfs(zfs_handle_t *, char **); 505 extern boolean_t zfs_is_shared_smb(zfs_handle_t *, char **); 506 extern int zfs_share_nfs(zfs_handle_t *); 507 extern int zfs_share_smb(zfs_handle_t *); 508 extern int zfs_shareall(zfs_handle_t *); 509 extern int zfs_unshare_nfs(zfs_handle_t *, const char *); 510 extern int zfs_unshare_smb(zfs_handle_t *, const char *); 511 extern int zfs_unshareall_nfs(zfs_handle_t *); 512 extern int zfs_unshareall_smb(zfs_handle_t *); 513 extern int zfs_unshareall_bypath(zfs_handle_t *, const char *); 514 extern int zfs_unshareall(zfs_handle_t *); 515 extern boolean_t zfs_is_shared_iscsi(zfs_handle_t *); 516 extern int zfs_share_iscsi(zfs_handle_t *); 517 extern int zfs_unshare_iscsi(zfs_handle_t *); 518 extern int zfs_iscsi_perm_check(libzfs_handle_t *, char *, ucred_t *); 519 extern int zfs_deleg_share_nfs(libzfs_handle_t *, char *, char *, 520 void *, void *, int, zfs_share_op_t); 521 522 /* 523 * When dealing with nvlists, verify() is extremely useful 524 */ 525 #ifdef NDEBUG 526 #define verify(EX) ((void)(EX)) 527 #else 528 #define verify(EX) assert(EX) 529 #endif 530 531 /* 532 * Utility function to convert a number to a human-readable form. 533 */ 534 extern void zfs_nicenum(uint64_t, char *, size_t); 535 extern int zfs_nicestrtonum(libzfs_handle_t *, const char *, uint64_t *); 536 537 /* 538 * Given a device or file, determine if it is part of a pool. 539 */ 540 extern int zpool_in_use(libzfs_handle_t *, int, pool_state_t *, char **, 541 boolean_t *); 542 543 /* 544 * ftyp special. Read the label from a given device. 545 */ 546 extern int zpool_read_label(int, nvlist_t **); 547 548 /* 549 * Create and remove zvol /dev links. 550 */ 551 extern int zpool_create_zvol_links(zpool_handle_t *); 552 extern int zpool_remove_zvol_links(zpool_handle_t *); 553 554 /* is this zvol valid for use as a dump device? */ 555 extern int zvol_check_dump_config(char *); 556 557 /* 558 * Enable and disable datasets within a pool by mounting/unmounting and 559 * sharing/unsharing them. 560 */ 561 extern int zpool_enable_datasets(zpool_handle_t *, const char *, int); 562 extern int zpool_disable_datasets(zpool_handle_t *, boolean_t); 563 564 #ifdef __cplusplus 565 } 566 #endif 567 568 #endif /* _LIBZFS_H */ 569