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 #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_VDEVNOTSUP, /* unsupported vdev type */ 118 EZFS_NOTSUP, /* ops not supported on this dataset */ 119 EZFS_ACTIVE_SPARE, /* pool has active shared spare devices */ 120 EZFS_UNKNOWN 121 }; 122 123 /* 124 * The following data structures are all part 125 * of the zfs_allow_t data structure which is 126 * used for printing 'allow' permissions. 127 * It is a linked list of zfs_allow_t's which 128 * then contain avl tree's for user/group/sets/... 129 * and each one of the entries in those trees have 130 * avl tree's for the permissions they belong to and 131 * whether they are local,descendent or local+descendent 132 * permissions. The AVL trees are used primarily for 133 * sorting purposes, but also so that we can quickly find 134 * a given user and or permission. 135 */ 136 typedef struct zfs_perm_node { 137 avl_node_t z_node; 138 char z_pname[MAXPATHLEN]; 139 } zfs_perm_node_t; 140 141 typedef struct zfs_allow_node { 142 avl_node_t z_node; 143 char z_key[MAXPATHLEN]; /* name, such as joe */ 144 avl_tree_t z_localdescend; /* local+descendent perms */ 145 avl_tree_t z_local; /* local permissions */ 146 avl_tree_t z_descend; /* descendent permissions */ 147 } zfs_allow_node_t; 148 149 typedef struct zfs_allow { 150 struct zfs_allow *z_next; 151 char z_setpoint[MAXPATHLEN]; 152 avl_tree_t z_sets; 153 avl_tree_t z_crperms; 154 avl_tree_t z_user; 155 avl_tree_t z_group; 156 avl_tree_t z_everyone; 157 } zfs_allow_t; 158 159 /* 160 * Basic handle types 161 */ 162 typedef struct zfs_handle zfs_handle_t; 163 typedef struct zpool_handle zpool_handle_t; 164 typedef struct libzfs_handle libzfs_handle_t; 165 166 /* 167 * Library initialization 168 */ 169 extern libzfs_handle_t *libzfs_init(void); 170 extern void libzfs_fini(libzfs_handle_t *); 171 172 extern libzfs_handle_t *zpool_get_handle(zpool_handle_t *); 173 extern libzfs_handle_t *zfs_get_handle(zfs_handle_t *); 174 175 extern void libzfs_print_on_error(libzfs_handle_t *, boolean_t); 176 177 extern int libzfs_errno(libzfs_handle_t *); 178 extern const char *libzfs_error_action(libzfs_handle_t *); 179 extern const char *libzfs_error_description(libzfs_handle_t *); 180 181 /* 182 * Basic handle functions 183 */ 184 extern zpool_handle_t *zpool_open(libzfs_handle_t *, const char *); 185 extern zpool_handle_t *zpool_open_canfail(libzfs_handle_t *, const char *); 186 extern void zpool_close(zpool_handle_t *); 187 extern const char *zpool_get_name(zpool_handle_t *); 188 extern int zpool_get_state(zpool_handle_t *); 189 extern char *zpool_state_to_name(vdev_state_t, vdev_aux_t); 190 extern void zpool_free_handles(libzfs_handle_t *); 191 192 /* 193 * Iterate over all active pools in the system. 194 */ 195 typedef int (*zpool_iter_f)(zpool_handle_t *, void *); 196 extern int zpool_iter(libzfs_handle_t *, zpool_iter_f, void *); 197 198 /* 199 * Functions to create and destroy pools 200 */ 201 extern int zpool_create(libzfs_handle_t *, const char *, nvlist_t *, 202 nvlist_t *, nvlist_t *); 203 extern int zpool_destroy(zpool_handle_t *); 204 extern int zpool_add(zpool_handle_t *, nvlist_t *); 205 206 /* 207 * Functions to manipulate pool and vdev state 208 */ 209 extern int zpool_scrub(zpool_handle_t *, pool_scrub_type_t); 210 extern int zpool_clear(zpool_handle_t *, const char *); 211 212 extern int zpool_vdev_online(zpool_handle_t *, const char *, int, 213 vdev_state_t *); 214 extern int zpool_vdev_offline(zpool_handle_t *, const char *, boolean_t); 215 extern int zpool_vdev_attach(zpool_handle_t *, const char *, 216 const char *, nvlist_t *, int); 217 extern int zpool_vdev_detach(zpool_handle_t *, const char *); 218 extern int zpool_vdev_remove(zpool_handle_t *, const char *); 219 220 extern int zpool_vdev_fault(zpool_handle_t *, uint64_t); 221 extern int zpool_vdev_degrade(zpool_handle_t *, uint64_t); 222 extern int zpool_vdev_clear(zpool_handle_t *, uint64_t); 223 224 extern nvlist_t *zpool_find_vdev(zpool_handle_t *, const char *, boolean_t *, 225 boolean_t *); 226 extern int zpool_label_disk(libzfs_handle_t *, zpool_handle_t *, char *); 227 228 /* 229 * Functions to manage pool properties 230 */ 231 extern int zpool_set_prop(zpool_handle_t *, const char *, const char *); 232 extern int zpool_get_prop(zpool_handle_t *, zpool_prop_t, char *, 233 size_t proplen, zprop_source_t *); 234 extern uint64_t zpool_get_prop_int(zpool_handle_t *, zpool_prop_t, 235 zprop_source_t *); 236 237 extern const char *zpool_prop_to_name(zpool_prop_t); 238 extern const char *zpool_prop_values(zpool_prop_t); 239 240 /* 241 * Pool health statistics. 242 */ 243 typedef enum { 244 /* 245 * The following correspond to faults as defined in the (fault.fs.zfs.*) 246 * event namespace. Each is associated with a corresponding message ID. 247 */ 248 ZPOOL_STATUS_CORRUPT_CACHE, /* corrupt /kernel/drv/zpool.cache */ 249 ZPOOL_STATUS_MISSING_DEV_R, /* missing device with replicas */ 250 ZPOOL_STATUS_MISSING_DEV_NR, /* missing device with no replicas */ 251 ZPOOL_STATUS_CORRUPT_LABEL_R, /* bad device label with replicas */ 252 ZPOOL_STATUS_CORRUPT_LABEL_NR, /* bad device label with no replicas */ 253 ZPOOL_STATUS_BAD_GUID_SUM, /* sum of device guids didn't match */ 254 ZPOOL_STATUS_CORRUPT_POOL, /* pool metadata is corrupted */ 255 ZPOOL_STATUS_CORRUPT_DATA, /* data errors in user (meta)data */ 256 ZPOOL_STATUS_FAILING_DEV, /* device experiencing errors */ 257 ZPOOL_STATUS_VERSION_NEWER, /* newer on-disk version */ 258 ZPOOL_STATUS_HOSTID_MISMATCH, /* last accessed by another system */ 259 ZPOOL_STATUS_IO_FAILURE_WAIT, /* failed I/O, failmode 'wait' */ 260 ZPOOL_STATUS_IO_FAILURE_CONTINUE, /* failed I/O, failmode 'continue' */ 261 ZPOOL_STATUS_FAULTED_DEV_R, /* faulted device with replicas */ 262 ZPOOL_STATUS_FAULTED_DEV_NR, /* faulted device with no replicas */ 263 ZPOOL_STATUS_BAD_LOG, /* cannot read log chain(s) */ 264 265 /* 266 * The following are not faults per se, but still an error possibly 267 * requiring administrative attention. There is no corresponding 268 * message ID. 269 */ 270 ZPOOL_STATUS_VERSION_OLDER, /* older on-disk version */ 271 ZPOOL_STATUS_RESILVERING, /* device being resilvered */ 272 ZPOOL_STATUS_OFFLINE_DEV, /* device online */ 273 274 /* 275 * Finally, the following indicates a healthy pool. 276 */ 277 ZPOOL_STATUS_OK 278 } zpool_status_t; 279 280 extern zpool_status_t zpool_get_status(zpool_handle_t *, char **); 281 extern zpool_status_t zpool_import_status(nvlist_t *, char **); 282 283 /* 284 * Statistics and configuration functions. 285 */ 286 extern nvlist_t *zpool_get_config(zpool_handle_t *, nvlist_t **); 287 extern int zpool_refresh_stats(zpool_handle_t *, boolean_t *); 288 extern int zpool_get_errlog(zpool_handle_t *, nvlist_t **); 289 290 /* 291 * Import and export functions 292 */ 293 extern int zpool_export(zpool_handle_t *, boolean_t); 294 extern int zpool_import(libzfs_handle_t *, nvlist_t *, const char *, 295 char *altroot); 296 extern int zpool_import_props(libzfs_handle_t *, nvlist_t *, const char *, 297 nvlist_t *, boolean_t); 298 299 /* 300 * Search for pools to import 301 */ 302 extern nvlist_t *zpool_find_import(libzfs_handle_t *, int, char **); 303 extern nvlist_t *zpool_find_import_cached(libzfs_handle_t *, const char *, 304 char *, uint64_t); 305 extern nvlist_t *zpool_find_import_byname(libzfs_handle_t *, int, char **, 306 char *); 307 extern nvlist_t *zpool_find_import_byguid(libzfs_handle_t *, int, char **, 308 uint64_t); 309 extern nvlist_t *zpool_find_import_activeok(libzfs_handle_t *, int, char **); 310 311 /* 312 * Miscellaneous pool functions 313 */ 314 struct zfs_cmd; 315 316 extern char *zpool_vdev_name(libzfs_handle_t *, zpool_handle_t *, nvlist_t *); 317 extern int zpool_upgrade(zpool_handle_t *, uint64_t); 318 extern int zpool_get_history(zpool_handle_t *, nvlist_t **); 319 extern void zpool_set_history_str(const char *subcommand, int argc, 320 char **argv, char *history_str); 321 extern int zpool_stage_history(libzfs_handle_t *, const char *); 322 extern void zpool_obj_to_path(zpool_handle_t *, uint64_t, uint64_t, char *, 323 size_t len); 324 extern int zfs_ioctl(libzfs_handle_t *, int, struct zfs_cmd *); 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 *); 333 334 /* 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 */ 342 extern const char *zfs_prop_default_string(zfs_prop_t); 343 extern uint64_t zfs_prop_default_numeric(zfs_prop_t); 344 extern const char *zfs_prop_column_name(zfs_prop_t); 345 extern boolean_t zfs_prop_align_right(zfs_prop_t); 346 347 extern nvlist_t *zfs_valid_proplist(libzfs_handle_t *, zfs_type_t, 348 nvlist_t *, uint64_t, zfs_handle_t *, const char *); 349 350 extern const char *zfs_prop_to_name(zfs_prop_t); 351 extern int zfs_prop_set(zfs_handle_t *, const char *, const char *); 352 extern int zfs_prop_get(zfs_handle_t *, zfs_prop_t, char *, size_t, 353 zprop_source_t *, char *, size_t, boolean_t); 354 extern int zfs_prop_get_numeric(zfs_handle_t *, zfs_prop_t, uint64_t *, 355 zprop_source_t *, char *, size_t); 356 extern uint64_t zfs_prop_get_int(zfs_handle_t *, zfs_prop_t); 357 extern int zfs_prop_inherit(zfs_handle_t *, const char *); 358 extern const char *zfs_prop_values(zfs_prop_t); 359 extern int zfs_prop_is_string(zfs_prop_t prop); 360 extern nvlist_t *zfs_get_user_props(zfs_handle_t *); 361 362 typedef 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; 370 371 extern 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 */ 379 extern int zpool_expand_proplist(zpool_handle_t *, zprop_list_t **); 380 extern const char *zpool_prop_default_string(zpool_prop_t); 381 extern uint64_t zpool_prop_default_numeric(zpool_prop_t); 382 extern const char *zpool_prop_column_name(zpool_prop_t); 383 extern boolean_t zpool_prop_align_right(zpool_prop_t); 384 385 /* 386 * Functions shared by zfs and zpool property management. 387 */ 388 extern int zprop_iter(zprop_func func, void *cb, boolean_t show_all, 389 boolean_t ordered, zfs_type_t type); 390 extern int zprop_get_list(libzfs_handle_t *, char *, zprop_list_t **, 391 zfs_type_t); 392 extern void zprop_free_list(zprop_list_t *); 393 394 /* 395 * Functions for printing zfs or zpool properties 396 */ 397 typedef 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; 407 408 void 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 */ 419 typedef int (*zfs_iter_f)(zfs_handle_t *, void *); 420 extern int zfs_iter_root(libzfs_handle_t *, zfs_iter_f, void *); 421 extern int zfs_iter_children(zfs_handle_t *, zfs_iter_f, void *); 422 extern int zfs_iter_dependents(zfs_handle_t *, boolean_t, zfs_iter_f, void *); 423 extern int zfs_iter_filesystems(zfs_handle_t *, zfs_iter_f, void *); 424 extern int zfs_iter_snapshots(zfs_handle_t *, zfs_iter_f, void *); 425 426 /* 427 * Functions to create and destroy datasets. 428 */ 429 extern int zfs_create(libzfs_handle_t *, const char *, zfs_type_t, 430 nvlist_t *); 431 extern int zfs_create_ancestors(libzfs_handle_t *, const char *); 432 extern int zfs_destroy(zfs_handle_t *); 433 extern int zfs_destroy_snaps(zfs_handle_t *, char *); 434 extern int zfs_clone(zfs_handle_t *, const char *, nvlist_t *); 435 extern int zfs_snapshot(libzfs_handle_t *, const char *, boolean_t, nvlist_t *); 436 extern int zfs_rollback(zfs_handle_t *, zfs_handle_t *, boolean_t); 437 extern int zfs_rename(zfs_handle_t *, const char *, boolean_t); 438 extern int zfs_send(zfs_handle_t *, const char *, const char *, 439 boolean_t, boolean_t, boolean_t, boolean_t, int); 440 extern int zfs_promote(zfs_handle_t *); 441 442 typedef 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; 461 462 extern int zfs_receive(libzfs_handle_t *, const char *, recvflags_t, 463 int, avl_tree_t *); 464 465 /* 466 * Miscellaneous functions. 467 */ 468 extern const char *zfs_type_to_name(zfs_type_t); 469 extern void zfs_refresh_properties(zfs_handle_t *); 470 extern int zfs_name_valid(const char *, zfs_type_t); 471 extern zfs_handle_t *zfs_path_to_zhandle(libzfs_handle_t *, char *, zfs_type_t); 472 extern boolean_t zfs_dataset_exists(libzfs_handle_t *, const char *, 473 zfs_type_t); 474 extern int zfs_spa_version(zfs_handle_t *, int *); 475 476 /* 477 * dataset permission functions. 478 */ 479 extern int zfs_perm_set(zfs_handle_t *, nvlist_t *); 480 extern int zfs_perm_remove(zfs_handle_t *, nvlist_t *); 481 extern int zfs_build_perms(zfs_handle_t *, char *, char *, 482 zfs_deleg_who_type_t, zfs_deleg_inherit_t, nvlist_t **nvlist_t); 483 extern int zfs_perm_get(zfs_handle_t *, zfs_allow_t **); 484 extern void zfs_free_allows(zfs_allow_t *); 485 extern void zfs_deleg_permissions(void); 486 487 /* 488 * Mount support functions. 489 */ 490 extern boolean_t is_mounted(libzfs_handle_t *, const char *special, char **); 491 extern boolean_t zfs_is_mounted(zfs_handle_t *, char **); 492 extern int zfs_mount(zfs_handle_t *, const char *, int); 493 extern int zfs_unmount(zfs_handle_t *, const char *, int); 494 extern int zfs_unmountall(zfs_handle_t *, int); 495 496 /* 497 * Share support functions. 498 */ 499 extern boolean_t zfs_is_shared(zfs_handle_t *); 500 extern int zfs_share(zfs_handle_t *); 501 extern int zfs_unshare(zfs_handle_t *); 502 503 /* 504 * Protocol-specific share support functions. 505 */ 506 extern boolean_t zfs_is_shared_nfs(zfs_handle_t *, char **); 507 extern boolean_t zfs_is_shared_smb(zfs_handle_t *, char **); 508 extern int zfs_share_nfs(zfs_handle_t *); 509 extern int zfs_share_smb(zfs_handle_t *); 510 extern int zfs_shareall(zfs_handle_t *); 511 extern int zfs_unshare_nfs(zfs_handle_t *, const char *); 512 extern int zfs_unshare_smb(zfs_handle_t *, const char *); 513 extern int zfs_unshareall_nfs(zfs_handle_t *); 514 extern int zfs_unshareall_smb(zfs_handle_t *); 515 extern int zfs_unshareall_bypath(zfs_handle_t *, const char *); 516 extern int zfs_unshareall(zfs_handle_t *); 517 extern boolean_t zfs_is_shared_iscsi(zfs_handle_t *); 518 extern int zfs_share_iscsi(zfs_handle_t *); 519 extern int zfs_unshare_iscsi(zfs_handle_t *); 520 extern int zfs_iscsi_perm_check(libzfs_handle_t *, char *, ucred_t *); 521 extern 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 */ 536 extern void zfs_nicenum(uint64_t, char *, size_t); 537 extern 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 */ 542 extern 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 */ 548 extern int zpool_read_label(int, nvlist_t **); 549 550 /* 551 * Create and remove zvol /dev links. 552 */ 553 extern int zpool_create_zvol_links(zpool_handle_t *); 554 extern int zpool_remove_zvol_links(zpool_handle_t *); 555 556 /* is this zvol valid for use as a dump device? */ 557 extern 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 */ 563 extern int zpool_enable_datasets(zpool_handle_t *, const char *, int); 564 extern int zpool_disable_datasets(zpool_handle_t *, boolean_t); 565 566 #ifdef __cplusplus 567 } 568 #endif 569 570 #endif /* _LIBZFS_H */ 571