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 2009 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/mnttab.h> 33 #include <sys/param.h> 34 #include <sys/types.h> 35 #include <sys/varargs.h> 36 #include <sys/fs/zfs.h> 37 #include <sys/avl.h> 38 #include <ucred.h> 39 40 #ifdef __cplusplus 41 extern "C" { 42 #endif 43 44 /* 45 * Miscellaneous ZFS constants 46 */ 47 #define ZFS_MAXNAMELEN MAXNAMELEN 48 #define ZPOOL_MAXNAMELEN MAXNAMELEN 49 #define ZFS_MAXPROPLEN MAXPATHLEN 50 #define ZPOOL_MAXPROPLEN MAXPATHLEN 51 52 /* 53 * libzfs errors 54 */ 55 enum { 56 EZFS_NOMEM = 2000, /* out of memory */ 57 EZFS_BADPROP, /* invalid property value */ 58 EZFS_PROPREADONLY, /* cannot set readonly property */ 59 EZFS_PROPTYPE, /* property does not apply to dataset type */ 60 EZFS_PROPNONINHERIT, /* property is not inheritable */ 61 EZFS_PROPSPACE, /* bad quota or reservation */ 62 EZFS_BADTYPE, /* dataset is not of appropriate type */ 63 EZFS_BUSY, /* pool or dataset is busy */ 64 EZFS_EXISTS, /* pool or dataset already exists */ 65 EZFS_NOENT, /* no such pool or dataset */ 66 EZFS_BADSTREAM, /* bad backup stream */ 67 EZFS_DSREADONLY, /* dataset is readonly */ 68 EZFS_VOLTOOBIG, /* volume is too large for 32-bit system */ 69 EZFS_VOLHASDATA, /* volume already contains data */ 70 EZFS_INVALIDNAME, /* invalid dataset name */ 71 EZFS_BADRESTORE, /* unable to restore to destination */ 72 EZFS_BADBACKUP, /* backup failed */ 73 EZFS_BADTARGET, /* bad attach/detach/replace target */ 74 EZFS_NODEVICE, /* no such device in pool */ 75 EZFS_BADDEV, /* invalid device to add */ 76 EZFS_NOREPLICAS, /* no valid replicas */ 77 EZFS_RESILVERING, /* currently resilvering */ 78 EZFS_BADVERSION, /* unsupported version */ 79 EZFS_POOLUNAVAIL, /* pool is currently unavailable */ 80 EZFS_DEVOVERFLOW, /* too many devices in one vdev */ 81 EZFS_BADPATH, /* must be an absolute path */ 82 EZFS_CROSSTARGET, /* rename or clone across pool or dataset */ 83 EZFS_ZONED, /* used improperly in local zone */ 84 EZFS_MOUNTFAILED, /* failed to mount dataset */ 85 EZFS_UMOUNTFAILED, /* failed to unmount dataset */ 86 EZFS_UNSHARENFSFAILED, /* unshare(1M) failed */ 87 EZFS_SHARENFSFAILED, /* share(1M) failed */ 88 EZFS_DEVLINKS, /* failed to create zvol links */ 89 EZFS_PERM, /* permission denied */ 90 EZFS_NOSPC, /* out of space */ 91 EZFS_IO, /* I/O error */ 92 EZFS_INTR, /* signal received */ 93 EZFS_ISSPARE, /* device is a hot spare */ 94 EZFS_INVALCONFIG, /* invalid vdev configuration */ 95 EZFS_RECURSIVE, /* recursive dependency */ 96 EZFS_NOHISTORY, /* no history object */ 97 EZFS_UNSHAREISCSIFAILED, /* iscsitgtd failed request to unshare */ 98 EZFS_SHAREISCSIFAILED, /* iscsitgtd failed request to share */ 99 EZFS_POOLPROPS, /* couldn't retrieve pool props */ 100 EZFS_POOL_NOTSUP, /* ops not supported for this type of pool */ 101 EZFS_POOL_INVALARG, /* invalid argument for this pool operation */ 102 EZFS_NAMETOOLONG, /* dataset name is too long */ 103 EZFS_OPENFAILED, /* open of device failed */ 104 EZFS_NOCAP, /* couldn't get capacity */ 105 EZFS_LABELFAILED, /* write of label failed */ 106 EZFS_ISCSISVCUNAVAIL, /* iscsi service unavailable */ 107 EZFS_BADWHO, /* invalid permission who */ 108 EZFS_BADPERM, /* invalid permission */ 109 EZFS_BADPERMSET, /* invalid permission set name */ 110 EZFS_NODELEGATION, /* delegated administration is disabled */ 111 EZFS_PERMRDONLY, /* pemissions are readonly */ 112 EZFS_UNSHARESMBFAILED, /* failed to unshare over smb */ 113 EZFS_SHARESMBFAILED, /* failed to share over smb */ 114 EZFS_BADCACHE, /* bad cache file */ 115 EZFS_ISL2CACHE, /* device is for the level 2 ARC */ 116 EZFS_VDEVNOTSUP, /* unsupported vdev type */ 117 EZFS_NOTSUP, /* ops not supported on this dataset */ 118 EZFS_ACTIVE_SPARE, /* pool has active shared spare devices */ 119 EZFS_UNKNOWN 120 }; 121 122 /* 123 * The following data structures are all part 124 * of the zfs_allow_t data structure which is 125 * used for printing 'allow' permissions. 126 * It is a linked list of zfs_allow_t's which 127 * then contain avl tree's for user/group/sets/... 128 * and each one of the entries in those trees have 129 * avl tree's for the permissions they belong to and 130 * whether they are local,descendent or local+descendent 131 * permissions. The AVL trees are used primarily for 132 * sorting purposes, but also so that we can quickly find 133 * a given user and or permission. 134 */ 135 typedef struct zfs_perm_node { 136 avl_node_t z_node; 137 char z_pname[MAXPATHLEN]; 138 } zfs_perm_node_t; 139 140 typedef struct zfs_allow_node { 141 avl_node_t z_node; 142 char z_key[MAXPATHLEN]; /* name, such as joe */ 143 avl_tree_t z_localdescend; /* local+descendent perms */ 144 avl_tree_t z_local; /* local permissions */ 145 avl_tree_t z_descend; /* descendent permissions */ 146 } zfs_allow_node_t; 147 148 typedef struct zfs_allow { 149 struct zfs_allow *z_next; 150 char z_setpoint[MAXPATHLEN]; 151 avl_tree_t z_sets; 152 avl_tree_t z_crperms; 153 avl_tree_t z_user; 154 avl_tree_t z_group; 155 avl_tree_t z_everyone; 156 } zfs_allow_t; 157 158 /* 159 * Basic handle types 160 */ 161 typedef struct zfs_handle zfs_handle_t; 162 typedef struct zpool_handle zpool_handle_t; 163 typedef struct libzfs_handle libzfs_handle_t; 164 165 /* 166 * Library initialization 167 */ 168 extern libzfs_handle_t *libzfs_init(void); 169 extern void libzfs_fini(libzfs_handle_t *); 170 171 extern libzfs_handle_t *zpool_get_handle(zpool_handle_t *); 172 extern libzfs_handle_t *zfs_get_handle(zfs_handle_t *); 173 174 extern void libzfs_print_on_error(libzfs_handle_t *, boolean_t); 175 176 extern int libzfs_errno(libzfs_handle_t *); 177 extern const char *libzfs_error_action(libzfs_handle_t *); 178 extern const char *libzfs_error_description(libzfs_handle_t *); 179 extern void libzfs_mnttab_init(libzfs_handle_t *); 180 extern void libzfs_mnttab_fini(libzfs_handle_t *); 181 extern int libzfs_mnttab_find(libzfs_handle_t *, const char *, 182 struct mnttab *); 183 extern void libzfs_mnttab_add(libzfs_handle_t *, const char *, 184 const char *, const char *); 185 extern void libzfs_mnttab_remove(libzfs_handle_t *, const char *); 186 187 /* 188 * Basic handle functions 189 */ 190 extern zpool_handle_t *zpool_open(libzfs_handle_t *, const char *); 191 extern zpool_handle_t *zpool_open_canfail(libzfs_handle_t *, const char *); 192 extern void zpool_close(zpool_handle_t *); 193 extern const char *zpool_get_name(zpool_handle_t *); 194 extern int zpool_get_state(zpool_handle_t *); 195 extern char *zpool_state_to_name(vdev_state_t, vdev_aux_t); 196 extern void zpool_free_handles(libzfs_handle_t *); 197 198 /* 199 * Iterate over all active pools in the system. 200 */ 201 typedef int (*zpool_iter_f)(zpool_handle_t *, void *); 202 extern int zpool_iter(libzfs_handle_t *, zpool_iter_f, void *); 203 204 /* 205 * Functions to create and destroy pools 206 */ 207 extern int zpool_create(libzfs_handle_t *, const char *, nvlist_t *, 208 nvlist_t *, nvlist_t *); 209 extern int zpool_destroy(zpool_handle_t *); 210 extern int zpool_add(zpool_handle_t *, nvlist_t *); 211 212 /* 213 * Functions to manipulate pool and vdev state 214 */ 215 extern int zpool_scrub(zpool_handle_t *, pool_scrub_type_t); 216 extern int zpool_clear(zpool_handle_t *, const char *); 217 218 extern int zpool_vdev_online(zpool_handle_t *, const char *, int, 219 vdev_state_t *); 220 extern int zpool_vdev_offline(zpool_handle_t *, const char *, boolean_t); 221 extern int zpool_vdev_attach(zpool_handle_t *, const char *, 222 const char *, nvlist_t *, int); 223 extern int zpool_vdev_detach(zpool_handle_t *, const char *); 224 extern int zpool_vdev_remove(zpool_handle_t *, const char *); 225 226 extern int zpool_vdev_fault(zpool_handle_t *, uint64_t); 227 extern int zpool_vdev_degrade(zpool_handle_t *, uint64_t); 228 extern int zpool_vdev_clear(zpool_handle_t *, uint64_t); 229 230 extern nvlist_t *zpool_find_vdev(zpool_handle_t *, const char *, boolean_t *, 231 boolean_t *, boolean_t *); 232 extern int zpool_label_disk(libzfs_handle_t *, zpool_handle_t *, char *); 233 234 /* 235 * Functions to manage pool properties 236 */ 237 extern int zpool_set_prop(zpool_handle_t *, const char *, const char *); 238 extern int zpool_get_prop(zpool_handle_t *, zpool_prop_t, char *, 239 size_t proplen, zprop_source_t *); 240 extern uint64_t zpool_get_prop_int(zpool_handle_t *, zpool_prop_t, 241 zprop_source_t *); 242 243 extern const char *zpool_prop_to_name(zpool_prop_t); 244 extern const char *zpool_prop_values(zpool_prop_t); 245 246 /* 247 * Pool health statistics. 248 */ 249 typedef enum { 250 /* 251 * The following correspond to faults as defined in the (fault.fs.zfs.*) 252 * event namespace. Each is associated with a corresponding message ID. 253 */ 254 ZPOOL_STATUS_CORRUPT_CACHE, /* corrupt /kernel/drv/zpool.cache */ 255 ZPOOL_STATUS_MISSING_DEV_R, /* missing device with replicas */ 256 ZPOOL_STATUS_MISSING_DEV_NR, /* missing device with no replicas */ 257 ZPOOL_STATUS_CORRUPT_LABEL_R, /* bad device label with replicas */ 258 ZPOOL_STATUS_CORRUPT_LABEL_NR, /* bad device label with no replicas */ 259 ZPOOL_STATUS_BAD_GUID_SUM, /* sum of device guids didn't match */ 260 ZPOOL_STATUS_CORRUPT_POOL, /* pool metadata is corrupted */ 261 ZPOOL_STATUS_CORRUPT_DATA, /* data errors in user (meta)data */ 262 ZPOOL_STATUS_FAILING_DEV, /* device experiencing errors */ 263 ZPOOL_STATUS_VERSION_NEWER, /* newer on-disk version */ 264 ZPOOL_STATUS_HOSTID_MISMATCH, /* last accessed by another system */ 265 ZPOOL_STATUS_IO_FAILURE_WAIT, /* failed I/O, failmode 'wait' */ 266 ZPOOL_STATUS_IO_FAILURE_CONTINUE, /* failed I/O, failmode 'continue' */ 267 ZPOOL_STATUS_BAD_LOG, /* cannot read log chain(s) */ 268 269 /* 270 * These faults have no corresponding message ID. At the time we are 271 * checking the status, the original reason for the FMA fault (I/O or 272 * checksum errors) has been lost. 273 */ 274 ZPOOL_STATUS_FAULTED_DEV_R, /* faulted device with replicas */ 275 ZPOOL_STATUS_FAULTED_DEV_NR, /* faulted device with no replicas */ 276 277 /* 278 * The following are not faults per se, but still an error possibly 279 * requiring administrative attention. There is no corresponding 280 * message ID. 281 */ 282 ZPOOL_STATUS_VERSION_OLDER, /* older on-disk version */ 283 ZPOOL_STATUS_RESILVERING, /* device being resilvered */ 284 ZPOOL_STATUS_OFFLINE_DEV, /* device online */ 285 286 /* 287 * Finally, the following indicates a healthy pool. 288 */ 289 ZPOOL_STATUS_OK 290 } zpool_status_t; 291 292 extern zpool_status_t zpool_get_status(zpool_handle_t *, char **); 293 extern zpool_status_t zpool_import_status(nvlist_t *, char **); 294 295 /* 296 * Statistics and configuration functions. 297 */ 298 extern nvlist_t *zpool_get_config(zpool_handle_t *, nvlist_t **); 299 extern int zpool_refresh_stats(zpool_handle_t *, boolean_t *); 300 extern int zpool_get_errlog(zpool_handle_t *, nvlist_t **); 301 302 /* 303 * Import and export functions 304 */ 305 extern int zpool_export(zpool_handle_t *, boolean_t); 306 extern int zpool_export_force(zpool_handle_t *); 307 extern int zpool_import(libzfs_handle_t *, nvlist_t *, const char *, 308 char *altroot); 309 extern int zpool_import_props(libzfs_handle_t *, nvlist_t *, const char *, 310 nvlist_t *, boolean_t); 311 312 /* 313 * Search for pools to import 314 */ 315 extern nvlist_t *zpool_find_import(libzfs_handle_t *, int, char **); 316 extern nvlist_t *zpool_find_import_cached(libzfs_handle_t *, const char *, 317 char *, uint64_t); 318 extern nvlist_t *zpool_find_import_byname(libzfs_handle_t *, int, char **, 319 char *); 320 extern nvlist_t *zpool_find_import_byguid(libzfs_handle_t *, int, char **, 321 uint64_t); 322 extern nvlist_t *zpool_find_import_activeok(libzfs_handle_t *, int, char **); 323 324 /* 325 * Miscellaneous pool functions 326 */ 327 struct zfs_cmd; 328 329 extern char *zpool_vdev_name(libzfs_handle_t *, zpool_handle_t *, nvlist_t *); 330 extern int zpool_upgrade(zpool_handle_t *, uint64_t); 331 extern int zpool_get_history(zpool_handle_t *, nvlist_t **); 332 extern void zpool_set_history_str(const char *subcommand, int argc, 333 char **argv, char *history_str); 334 extern int zpool_stage_history(libzfs_handle_t *, const char *); 335 extern void zpool_obj_to_path(zpool_handle_t *, uint64_t, uint64_t, char *, 336 size_t len); 337 extern int zfs_ioctl(libzfs_handle_t *, int, struct zfs_cmd *); 338 extern int zpool_get_physpath(zpool_handle_t *, char *); 339 /* 340 * Basic handle manipulations. These functions do not create or destroy the 341 * underlying datasets, only the references to them. 342 */ 343 extern zfs_handle_t *zfs_open(libzfs_handle_t *, const char *, int); 344 extern void zfs_close(zfs_handle_t *); 345 extern zfs_type_t zfs_get_type(const zfs_handle_t *); 346 extern const char *zfs_get_name(const zfs_handle_t *); 347 extern zpool_handle_t *zfs_get_pool_handle(const zfs_handle_t *); 348 349 /* 350 * Property management functions. Some functions are shared with the kernel, 351 * and are found in sys/fs/zfs.h. 352 */ 353 354 /* 355 * zfs dataset property management 356 */ 357 extern const char *zfs_prop_default_string(zfs_prop_t); 358 extern uint64_t zfs_prop_default_numeric(zfs_prop_t); 359 extern const char *zfs_prop_column_name(zfs_prop_t); 360 extern boolean_t zfs_prop_align_right(zfs_prop_t); 361 362 extern nvlist_t *zfs_valid_proplist(libzfs_handle_t *, zfs_type_t, 363 nvlist_t *, uint64_t, zfs_handle_t *, const char *); 364 365 extern const char *zfs_prop_to_name(zfs_prop_t); 366 extern int zfs_prop_set(zfs_handle_t *, const char *, const char *); 367 extern int zfs_prop_get(zfs_handle_t *, zfs_prop_t, char *, size_t, 368 zprop_source_t *, char *, size_t, boolean_t); 369 extern int zfs_prop_get_numeric(zfs_handle_t *, zfs_prop_t, uint64_t *, 370 zprop_source_t *, char *, size_t); 371 extern uint64_t zfs_prop_get_int(zfs_handle_t *, zfs_prop_t); 372 extern int zfs_prop_inherit(zfs_handle_t *, const char *); 373 extern const char *zfs_prop_values(zfs_prop_t); 374 extern int zfs_prop_is_string(zfs_prop_t prop); 375 extern nvlist_t *zfs_get_user_props(zfs_handle_t *); 376 377 typedef struct zprop_list { 378 int pl_prop; 379 char *pl_user_prop; 380 struct zprop_list *pl_next; 381 boolean_t pl_all; 382 size_t pl_width; 383 boolean_t pl_fixed; 384 } zprop_list_t; 385 386 extern int zfs_expand_proplist(zfs_handle_t *, zprop_list_t **); 387 388 #define ZFS_MOUNTPOINT_NONE "none" 389 #define ZFS_MOUNTPOINT_LEGACY "legacy" 390 391 /* 392 * zpool property management 393 */ 394 extern int zpool_expand_proplist(zpool_handle_t *, zprop_list_t **); 395 extern const char *zpool_prop_default_string(zpool_prop_t); 396 extern uint64_t zpool_prop_default_numeric(zpool_prop_t); 397 extern const char *zpool_prop_column_name(zpool_prop_t); 398 extern boolean_t zpool_prop_align_right(zpool_prop_t); 399 400 /* 401 * Functions shared by zfs and zpool property management. 402 */ 403 extern int zprop_iter(zprop_func func, void *cb, boolean_t show_all, 404 boolean_t ordered, zfs_type_t type); 405 extern int zprop_get_list(libzfs_handle_t *, char *, zprop_list_t **, 406 zfs_type_t); 407 extern void zprop_free_list(zprop_list_t *); 408 409 /* 410 * Functions for printing zfs or zpool properties 411 */ 412 typedef struct zprop_get_cbdata { 413 int cb_sources; 414 int cb_columns[4]; 415 int cb_colwidths[5]; 416 boolean_t cb_scripted; 417 boolean_t cb_literal; 418 boolean_t cb_first; 419 zprop_list_t *cb_proplist; 420 zfs_type_t cb_type; 421 } zprop_get_cbdata_t; 422 423 void zprop_print_one_property(const char *, zprop_get_cbdata_t *, 424 const char *, const char *, zprop_source_t, const char *); 425 426 #define GET_COL_NAME 1 427 #define GET_COL_PROPERTY 2 428 #define GET_COL_VALUE 3 429 #define GET_COL_SOURCE 4 430 431 /* 432 * Iterator functions. 433 */ 434 typedef int (*zfs_iter_f)(zfs_handle_t *, void *); 435 extern int zfs_iter_root(libzfs_handle_t *, zfs_iter_f, void *); 436 extern int zfs_iter_children(zfs_handle_t *, zfs_iter_f, void *); 437 extern int zfs_iter_dependents(zfs_handle_t *, boolean_t, zfs_iter_f, void *); 438 extern int zfs_iter_filesystems(zfs_handle_t *, zfs_iter_f, void *); 439 extern int zfs_iter_snapshots(zfs_handle_t *, zfs_iter_f, void *); 440 441 /* 442 * Functions to create and destroy datasets. 443 */ 444 extern int zfs_create(libzfs_handle_t *, const char *, zfs_type_t, 445 nvlist_t *); 446 extern int zfs_create_ancestors(libzfs_handle_t *, const char *); 447 extern int zfs_destroy(zfs_handle_t *); 448 extern int zfs_destroy_snaps(zfs_handle_t *, char *); 449 extern int zfs_clone(zfs_handle_t *, const char *, nvlist_t *); 450 extern int zfs_snapshot(libzfs_handle_t *, const char *, boolean_t, nvlist_t *); 451 extern int zfs_rollback(zfs_handle_t *, zfs_handle_t *, boolean_t); 452 extern int zfs_rename(zfs_handle_t *, const char *, boolean_t); 453 extern int zfs_send(zfs_handle_t *, const char *, const char *, 454 boolean_t, boolean_t, boolean_t, boolean_t, int); 455 extern int zfs_promote(zfs_handle_t *); 456 457 typedef struct recvflags { 458 /* print informational messages (ie, -v was specified) */ 459 int verbose : 1; 460 461 /* the destination is a prefix, not the exact fs (ie, -d) */ 462 int isprefix : 1; 463 464 /* do not actually do the recv, just check if it would work (ie, -n) */ 465 int dryrun : 1; 466 467 /* rollback/destroy filesystems as necessary (eg, -F) */ 468 int force : 1; 469 470 /* set "canmount=off" on all modified filesystems */ 471 int canmountoff : 1; 472 473 /* byteswap flag is used internally; callers need not specify */ 474 int byteswap : 1; 475 476 /* do not mount file systems as they are extracted (private) */ 477 int nomount : 1; 478 } recvflags_t; 479 480 extern int zfs_receive(libzfs_handle_t *, const char *, recvflags_t, 481 int, avl_tree_t *); 482 483 /* 484 * Miscellaneous functions. 485 */ 486 extern const char *zfs_type_to_name(zfs_type_t); 487 extern void zfs_refresh_properties(zfs_handle_t *); 488 extern int zfs_name_valid(const char *, zfs_type_t); 489 extern zfs_handle_t *zfs_path_to_zhandle(libzfs_handle_t *, char *, zfs_type_t); 490 extern boolean_t zfs_dataset_exists(libzfs_handle_t *, const char *, 491 zfs_type_t); 492 extern int zfs_spa_version(zfs_handle_t *, int *); 493 494 /* 495 * dataset permission functions. 496 */ 497 extern int zfs_perm_set(zfs_handle_t *, nvlist_t *); 498 extern int zfs_perm_remove(zfs_handle_t *, nvlist_t *); 499 extern int zfs_build_perms(zfs_handle_t *, char *, char *, 500 zfs_deleg_who_type_t, zfs_deleg_inherit_t, nvlist_t **nvlist_t); 501 extern int zfs_perm_get(zfs_handle_t *, zfs_allow_t **); 502 extern void zfs_free_allows(zfs_allow_t *); 503 extern void zfs_deleg_permissions(void); 504 505 /* 506 * Mount support functions. 507 */ 508 extern boolean_t is_mounted(libzfs_handle_t *, const char *special, char **); 509 extern boolean_t zfs_is_mounted(zfs_handle_t *, char **); 510 extern int zfs_mount(zfs_handle_t *, const char *, int); 511 extern int zfs_unmount(zfs_handle_t *, const char *, int); 512 extern int zfs_unmountall(zfs_handle_t *, int); 513 514 /* 515 * Share support functions. 516 */ 517 extern boolean_t zfs_is_shared(zfs_handle_t *); 518 extern int zfs_share(zfs_handle_t *); 519 extern int zfs_unshare(zfs_handle_t *); 520 521 /* 522 * Protocol-specific share support functions. 523 */ 524 extern boolean_t zfs_is_shared_nfs(zfs_handle_t *, char **); 525 extern boolean_t zfs_is_shared_smb(zfs_handle_t *, char **); 526 extern int zfs_share_nfs(zfs_handle_t *); 527 extern int zfs_share_smb(zfs_handle_t *); 528 extern int zfs_shareall(zfs_handle_t *); 529 extern int zfs_unshare_nfs(zfs_handle_t *, const char *); 530 extern int zfs_unshare_smb(zfs_handle_t *, const char *); 531 extern int zfs_unshareall_nfs(zfs_handle_t *); 532 extern int zfs_unshareall_smb(zfs_handle_t *); 533 extern int zfs_unshareall_bypath(zfs_handle_t *, const char *); 534 extern int zfs_unshareall(zfs_handle_t *); 535 extern boolean_t zfs_is_shared_iscsi(zfs_handle_t *); 536 extern int zfs_share_iscsi(zfs_handle_t *); 537 extern int zfs_unshare_iscsi(zfs_handle_t *); 538 extern int zfs_iscsi_perm_check(libzfs_handle_t *, char *, ucred_t *); 539 extern int zfs_deleg_share_nfs(libzfs_handle_t *, char *, char *, 540 void *, void *, int, zfs_share_op_t); 541 542 /* 543 * When dealing with nvlists, verify() is extremely useful 544 */ 545 #ifdef NDEBUG 546 #define verify(EX) ((void)(EX)) 547 #else 548 #define verify(EX) assert(EX) 549 #endif 550 551 /* 552 * Utility function to convert a number to a human-readable form. 553 */ 554 extern void zfs_nicenum(uint64_t, char *, size_t); 555 extern int zfs_nicestrtonum(libzfs_handle_t *, const char *, uint64_t *); 556 557 /* 558 * Given a device or file, determine if it is part of a pool. 559 */ 560 extern int zpool_in_use(libzfs_handle_t *, int, pool_state_t *, char **, 561 boolean_t *); 562 563 /* 564 * ftyp special. Read the label from a given device. 565 */ 566 extern int zpool_read_label(int, nvlist_t **); 567 568 /* 569 * Create and remove zvol /dev links. 570 */ 571 extern int zpool_create_zvol_links(zpool_handle_t *); 572 extern int zpool_remove_zvol_links(zpool_handle_t *); 573 574 /* is this zvol valid for use as a dump device? */ 575 extern int zvol_check_dump_config(char *); 576 577 /* 578 * Enable and disable datasets within a pool by mounting/unmounting and 579 * sharing/unsharing them. 580 */ 581 extern int zpool_enable_datasets(zpool_handle_t *, const char *, int); 582 extern int zpool_disable_datasets(zpool_handle_t *, boolean_t); 583 584 #ifdef __cplusplus 585 } 586 #endif 587 588 #endif /* _LIBZFS_H */ 589