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 (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2011 Pawel Jakub Dawidek. All rights reserved. 25 * Copyright (c) 2011, 2018 by Delphix. All rights reserved. 26 * Copyright 2020 Joyent, Inc. 27 * Copyright (c) 2013 Steven Hartland. All rights reserved. 28 * Copyright (c) 2014 Integros [integros.com] 29 * Copyright 2016 Nexenta Systems, Inc. 30 * Copyright (c) 2017 Datto Inc. 31 */ 32 33 #ifndef _LIBZFS_H 34 #define _LIBZFS_H 35 36 #include <assert.h> 37 #include <libnvpair.h> 38 #include <sys/mnttab.h> 39 #include <sys/param.h> 40 #include <sys/types.h> 41 #include <sys/varargs.h> 42 #include <sys/fs/zfs.h> 43 #include <sys/avl.h> 44 #include <ucred.h> 45 #include <libzfs_core.h> 46 47 #ifdef __cplusplus 48 extern "C" { 49 #endif 50 51 /* 52 * Miscellaneous ZFS constants 53 */ 54 #define ZFS_MAXPROPLEN MAXPATHLEN 55 #define ZPOOL_MAXPROPLEN MAXPATHLEN 56 57 /* 58 * libzfs errors 59 */ 60 typedef enum zfs_error { 61 EZFS_SUCCESS = 0, /* no error -- success */ 62 EZFS_NOMEM = 2000, /* out of memory */ 63 EZFS_BADPROP, /* invalid property value */ 64 EZFS_PROPREADONLY, /* cannot set readonly property */ 65 EZFS_PROPTYPE, /* property does not apply to dataset type */ 66 EZFS_PROPNONINHERIT, /* property is not inheritable */ 67 EZFS_PROPSPACE, /* bad quota or reservation */ 68 EZFS_BADTYPE, /* dataset is not of appropriate type */ 69 EZFS_BUSY, /* pool or dataset is busy */ 70 EZFS_EXISTS, /* pool or dataset already exists */ 71 EZFS_NOENT, /* no such pool or dataset */ 72 EZFS_BADSTREAM, /* bad backup stream */ 73 EZFS_DSREADONLY, /* dataset is readonly */ 74 EZFS_VOLTOOBIG, /* volume is too large for 32-bit system */ 75 EZFS_INVALIDNAME, /* invalid dataset name */ 76 EZFS_BADRESTORE, /* unable to restore to destination */ 77 EZFS_BADBACKUP, /* backup failed */ 78 EZFS_BADTARGET, /* bad attach/detach/replace target */ 79 EZFS_NODEVICE, /* no such device in pool */ 80 EZFS_BADDEV, /* invalid device to add */ 81 EZFS_NOREPLICAS, /* no valid replicas */ 82 EZFS_RESILVERING, /* currently resilvering */ 83 EZFS_BADVERSION, /* unsupported version */ 84 EZFS_POOLUNAVAIL, /* pool is currently unavailable */ 85 EZFS_DEVOVERFLOW, /* too many devices in one vdev */ 86 EZFS_BADPATH, /* must be an absolute path */ 87 EZFS_CROSSTARGET, /* rename or clone across pool or dataset */ 88 EZFS_ZONED, /* used improperly in local zone */ 89 EZFS_MOUNTFAILED, /* failed to mount dataset */ 90 EZFS_UMOUNTFAILED, /* failed to unmount dataset */ 91 EZFS_UNSHARENFSFAILED, /* unshare(1M) failed */ 92 EZFS_SHARENFSFAILED, /* share(1M) failed */ 93 EZFS_PERM, /* permission denied */ 94 EZFS_NOSPC, /* out of space */ 95 EZFS_FAULT, /* bad address */ 96 EZFS_IO, /* I/O error */ 97 EZFS_INTR, /* signal received */ 98 EZFS_ISSPARE, /* device is a hot spare */ 99 EZFS_INVALCONFIG, /* invalid vdev configuration */ 100 EZFS_RECURSIVE, /* recursive dependency */ 101 EZFS_NOHISTORY, /* no history object */ 102 EZFS_POOLPROPS, /* couldn't retrieve pool props */ 103 EZFS_POOL_NOTSUP, /* ops not supported for this type of pool */ 104 EZFS_POOL_INVALARG, /* invalid argument for this pool operation */ 105 EZFS_NAMETOOLONG, /* dataset name is too long */ 106 EZFS_OPENFAILED, /* open of device failed */ 107 EZFS_NOCAP, /* couldn't get capacity */ 108 EZFS_LABELFAILED, /* write of label failed */ 109 EZFS_BADWHO, /* invalid permission who */ 110 EZFS_BADPERM, /* invalid permission */ 111 EZFS_BADPERMSET, /* invalid permission set name */ 112 EZFS_NODELEGATION, /* delegated administration is disabled */ 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_UNPLAYED_LOGS, /* log device has unplayed logs */ 121 EZFS_REFTAG_RELE, /* snapshot release: tag not found */ 122 EZFS_REFTAG_HOLD, /* snapshot hold: tag already exists */ 123 EZFS_TAGTOOLONG, /* snapshot hold/rele: tag too long */ 124 EZFS_PIPEFAILED, /* pipe create failed */ 125 EZFS_THREADCREATEFAILED, /* thread create failed */ 126 EZFS_POSTSPLIT_ONLINE, /* onlining a disk after splitting it */ 127 EZFS_SCRUBBING, /* currently scrubbing */ 128 EZFS_NO_SCRUB, /* no active scrub */ 129 EZFS_DIFF, /* general failure of zfs diff */ 130 EZFS_DIFFDATA, /* bad zfs diff data */ 131 EZFS_POOLREADONLY, /* pool is in read-only mode */ 132 EZFS_SCRUB_PAUSED, /* scrub currently paused */ 133 EZFS_ACTIVE_POOL, /* pool is imported on a different system */ 134 EZFS_CRYPTOFAILED, /* failed to setup encryption */ 135 EZFS_NO_PENDING, /* cannot cancel, no operation is pending */ 136 EZFS_CHECKPOINT_EXISTS, /* checkpoint exists */ 137 EZFS_DISCARDING_CHECKPOINT, /* currently discarding a checkpoint */ 138 EZFS_NO_CHECKPOINT, /* pool has no checkpoint */ 139 EZFS_DEVRM_IN_PROGRESS, /* a device is currently being removed */ 140 EZFS_VDEV_TOO_BIG, /* a device is too big to be used */ 141 EZFS_TOOMANY, /* argument list too long */ 142 EZFS_INITIALIZING, /* currently initializing */ 143 EZFS_NO_INITIALIZE, /* no active initialize */ 144 EZFS_WRONG_PARENT, /* invalid parent dataset (e.g ZVOL) */ 145 EZFS_TRIMMING, /* currently trimming */ 146 EZFS_NO_TRIM, /* no active trim */ 147 EZFS_TRIM_NOTSUP, /* device does not support trim */ 148 EZFS_NO_RESILVER_DEFER, /* pool doesn't support resilver_defer */ 149 EZFS_IOC_NOTSUPPORTED, /* operation not supported by zfs module */ 150 EZFS_UNKNOWN 151 } zfs_error_t; 152 153 /* 154 * UEFI boot support parameters. When creating whole disk boot pool, 155 * zpool create should allow to create EFI System partition for UEFI boot 156 * program. In case of BIOS, the EFI System partition is not used 157 * even if it does exist. 158 */ 159 typedef enum zpool_boot_label { 160 ZPOOL_NO_BOOT_LABEL = 0, 161 ZPOOL_CREATE_BOOT_LABEL, 162 ZPOOL_COPY_BOOT_LABEL 163 } zpool_boot_label_t; 164 165 /* 166 * The following data structures are all part 167 * of the zfs_allow_t data structure which is 168 * used for printing 'allow' permissions. 169 * It is a linked list of zfs_allow_t's which 170 * then contain avl tree's for user/group/sets/... 171 * and each one of the entries in those trees have 172 * avl tree's for the permissions they belong to and 173 * whether they are local,descendent or local+descendent 174 * permissions. The AVL trees are used primarily for 175 * sorting purposes, but also so that we can quickly find 176 * a given user and or permission. 177 */ 178 typedef struct zfs_perm_node { 179 avl_node_t z_node; 180 char z_pname[MAXPATHLEN]; 181 } zfs_perm_node_t; 182 183 typedef struct zfs_allow_node { 184 avl_node_t z_node; 185 char z_key[MAXPATHLEN]; /* name, such as joe */ 186 avl_tree_t z_localdescend; /* local+descendent perms */ 187 avl_tree_t z_local; /* local permissions */ 188 avl_tree_t z_descend; /* descendent permissions */ 189 } zfs_allow_node_t; 190 191 typedef struct zfs_allow { 192 struct zfs_allow *z_next; 193 char z_setpoint[MAXPATHLEN]; 194 avl_tree_t z_sets; 195 avl_tree_t z_crperms; 196 avl_tree_t z_user; 197 avl_tree_t z_group; 198 avl_tree_t z_everyone; 199 } zfs_allow_t; 200 201 /* 202 * Basic handle types 203 */ 204 typedef struct zfs_handle zfs_handle_t; 205 typedef struct zpool_handle zpool_handle_t; 206 typedef struct libzfs_handle libzfs_handle_t; 207 208 /* 209 * Library initialization 210 */ 211 extern libzfs_handle_t *libzfs_init(void); 212 extern void libzfs_fini(libzfs_handle_t *); 213 214 extern libzfs_handle_t *zpool_get_handle(zpool_handle_t *); 215 extern libzfs_handle_t *zfs_get_handle(zfs_handle_t *); 216 217 extern void libzfs_print_on_error(libzfs_handle_t *, boolean_t); 218 219 extern void zfs_save_arguments(int argc, char **, char *, int); 220 extern int zpool_log_history(libzfs_handle_t *, const char *); 221 222 extern int libzfs_errno(libzfs_handle_t *); 223 extern const char *libzfs_error_action(libzfs_handle_t *); 224 extern const char *libzfs_error_description(libzfs_handle_t *); 225 extern int zfs_standard_error(libzfs_handle_t *, int, const char *); 226 extern void libzfs_mnttab_init(libzfs_handle_t *); 227 extern void libzfs_mnttab_fini(libzfs_handle_t *); 228 extern void libzfs_mnttab_cache(libzfs_handle_t *, boolean_t); 229 extern int libzfs_mnttab_find(libzfs_handle_t *, const char *, 230 struct mnttab *); 231 extern void libzfs_mnttab_add(libzfs_handle_t *, const char *, 232 const char *, const char *); 233 extern void libzfs_mnttab_remove(libzfs_handle_t *, const char *); 234 235 /* 236 * Basic handle functions 237 */ 238 extern zpool_handle_t *zpool_open(libzfs_handle_t *, const char *); 239 extern zpool_handle_t *zpool_open_canfail(libzfs_handle_t *, const char *); 240 extern void zpool_close(zpool_handle_t *); 241 extern const char *zpool_get_name(zpool_handle_t *); 242 extern int zpool_get_state(zpool_handle_t *); 243 extern const char *zpool_state_to_name(vdev_state_t, vdev_aux_t); 244 extern const char *zpool_pool_state_to_name(pool_state_t); 245 extern void zpool_free_handles(libzfs_handle_t *); 246 247 /* 248 * Iterate over all active pools in the system. 249 */ 250 typedef int (*zpool_iter_f)(zpool_handle_t *, void *); 251 extern int zpool_iter(libzfs_handle_t *, zpool_iter_f, void *); 252 extern boolean_t zpool_skip_pool(const char *); 253 254 /* 255 * Functions to create and destroy pools 256 */ 257 extern int zpool_create(libzfs_handle_t *, const char *, nvlist_t *, 258 nvlist_t *, nvlist_t *); 259 extern int zpool_destroy(zpool_handle_t *, const char *); 260 extern int zpool_add(zpool_handle_t *, nvlist_t *); 261 262 typedef struct splitflags { 263 /* do not split, but return the config that would be split off */ 264 int dryrun : 1; 265 266 /* after splitting, import the pool */ 267 int import : 1; 268 int name_flags; 269 } splitflags_t; 270 271 typedef struct trimflags { 272 /* requested vdevs are for the entire pool */ 273 boolean_t fullpool; 274 275 /* request a secure trim, requires support from device */ 276 boolean_t secure; 277 278 /* trim at the requested rate in bytes/second */ 279 uint64_t rate; 280 } trimflags_t; 281 282 /* 283 * Functions to manipulate pool and vdev state 284 */ 285 extern int zpool_scan(zpool_handle_t *, pool_scan_func_t, pool_scrub_cmd_t); 286 extern int zpool_initialize(zpool_handle_t *, pool_initialize_func_t, 287 nvlist_t *); 288 extern int zpool_trim(zpool_handle_t *, pool_trim_func_t, nvlist_t *, 289 trimflags_t *); 290 291 extern int zpool_clear(zpool_handle_t *, const char *, nvlist_t *); 292 extern int zpool_reguid(zpool_handle_t *); 293 extern int zpool_reopen(zpool_handle_t *); 294 295 extern int zpool_sync_one(zpool_handle_t *, void *); 296 297 extern int zpool_vdev_online(zpool_handle_t *, const char *, int, 298 vdev_state_t *); 299 extern int zpool_vdev_offline(zpool_handle_t *, const char *, boolean_t); 300 extern int zpool_vdev_attach(zpool_handle_t *, const char *, 301 const char *, nvlist_t *, int); 302 extern int zpool_vdev_detach(zpool_handle_t *, const char *); 303 extern int zpool_vdev_remove(zpool_handle_t *, const char *); 304 extern int zpool_vdev_remove_cancel(zpool_handle_t *); 305 extern int zpool_vdev_indirect_size(zpool_handle_t *, const char *, uint64_t *); 306 extern int zpool_vdev_split(zpool_handle_t *, char *, nvlist_t **, nvlist_t *, 307 splitflags_t); 308 309 extern int zpool_vdev_fault(zpool_handle_t *, uint64_t, vdev_aux_t); 310 extern int zpool_vdev_degrade(zpool_handle_t *, uint64_t, vdev_aux_t); 311 extern int zpool_vdev_clear(zpool_handle_t *, uint64_t); 312 313 extern nvlist_t *zpool_find_vdev(zpool_handle_t *, const char *, boolean_t *, 314 boolean_t *, boolean_t *); 315 extern nvlist_t *zpool_find_vdev_by_physpath(zpool_handle_t *, const char *, 316 boolean_t *, boolean_t *, boolean_t *); 317 extern int zpool_label_disk(libzfs_handle_t *, zpool_handle_t *, const char *, 318 zpool_boot_label_t, uint64_t, int *); 319 320 /* 321 * Functions to manage pool properties 322 */ 323 extern int zpool_set_prop(zpool_handle_t *, const char *, const char *); 324 extern int zpool_get_prop(zpool_handle_t *, zpool_prop_t, char *, 325 size_t proplen, zprop_source_t *, boolean_t); 326 extern uint64_t zpool_get_prop_int(zpool_handle_t *, zpool_prop_t, 327 zprop_source_t *); 328 329 extern const char *zpool_prop_to_name(zpool_prop_t); 330 extern const char *zpool_prop_values(zpool_prop_t); 331 332 /* 333 * Pool health statistics. 334 */ 335 typedef enum { 336 /* 337 * The following correspond to faults as defined in the (fault.fs.zfs.*) 338 * event namespace. Each is associated with a corresponding message ID. 339 * This must be kept in sync with the zfs_msgid_table in 340 * lib/libzfs/libzfs_status.c. 341 */ 342 ZPOOL_STATUS_CORRUPT_CACHE, /* corrupt /kernel/drv/zpool.cache */ 343 ZPOOL_STATUS_MISSING_DEV_R, /* missing device with replicas */ 344 ZPOOL_STATUS_MISSING_DEV_NR, /* missing device with no replicas */ 345 ZPOOL_STATUS_CORRUPT_LABEL_R, /* bad device label with replicas */ 346 ZPOOL_STATUS_CORRUPT_LABEL_NR, /* bad device label with no replicas */ 347 ZPOOL_STATUS_BAD_GUID_SUM, /* sum of device guids didn't match */ 348 ZPOOL_STATUS_CORRUPT_POOL, /* pool metadata is corrupted */ 349 ZPOOL_STATUS_CORRUPT_DATA, /* data errors in user (meta)data */ 350 ZPOOL_STATUS_FAILING_DEV, /* device experiencing errors */ 351 ZPOOL_STATUS_VERSION_NEWER, /* newer on-disk version */ 352 ZPOOL_STATUS_HOSTID_MISMATCH, /* last accessed by another system */ 353 ZPOOL_STATUS_HOSTID_ACTIVE, /* currently active on another system */ 354 ZPOOL_STATUS_HOSTID_REQUIRED, /* multihost=on and hostid=0 */ 355 ZPOOL_STATUS_IO_FAILURE_WAIT, /* failed I/O, failmode 'wait' */ 356 ZPOOL_STATUS_IO_FAILURE_CONTINUE, /* failed I/O, failmode 'continue' */ 357 ZPOOL_STATUS_IO_FAILURE_MMP, /* failed MMP, failmode not 'panic' */ 358 ZPOOL_STATUS_BAD_LOG, /* cannot read log chain(s) */ 359 ZPOOL_STATUS_ERRATA, /* informational errata available */ 360 361 /* 362 * If the pool has unsupported features but can still be opened in 363 * read-only mode, its status is ZPOOL_STATUS_UNSUP_FEAT_WRITE. If the 364 * pool has unsupported features but cannot be opened at all, its 365 * status is ZPOOL_STATUS_UNSUP_FEAT_READ. 366 */ 367 ZPOOL_STATUS_UNSUP_FEAT_READ, /* unsupported features for read */ 368 ZPOOL_STATUS_UNSUP_FEAT_WRITE, /* unsupported features for write */ 369 370 /* 371 * These faults have no corresponding message ID. At the time we are 372 * checking the status, the original reason for the FMA fault (I/O or 373 * checksum errors) has been lost. 374 */ 375 ZPOOL_STATUS_FAULTED_DEV_R, /* faulted device with replicas */ 376 ZPOOL_STATUS_FAULTED_DEV_NR, /* faulted device with no replicas */ 377 378 /* 379 * The following are not faults per se, but still an error possibly 380 * requiring administrative attention. There is no corresponding 381 * message ID. 382 */ 383 ZPOOL_STATUS_VERSION_OLDER, /* older legacy on-disk version */ 384 ZPOOL_STATUS_FEAT_DISABLED, /* supported features are disabled */ 385 ZPOOL_STATUS_RESILVERING, /* device being resilvered */ 386 ZPOOL_STATUS_OFFLINE_DEV, /* device offline */ 387 ZPOOL_STATUS_REMOVED_DEV, /* removed device */ 388 389 /* 390 * Finally, the following indicates a healthy pool. 391 */ 392 ZPOOL_STATUS_OK 393 } zpool_status_t; 394 395 extern zpool_status_t zpool_get_status(zpool_handle_t *, char **, 396 zpool_errata_t *); 397 extern zpool_status_t zpool_import_status(nvlist_t *, char **, 398 zpool_errata_t *); 399 400 /* 401 * Statistics and configuration functions. 402 */ 403 extern nvlist_t *zpool_get_config(zpool_handle_t *, nvlist_t **); 404 extern nvlist_t *zpool_get_features(zpool_handle_t *); 405 extern int zpool_refresh_stats(zpool_handle_t *, boolean_t *); 406 extern int zpool_get_errlog(zpool_handle_t *, nvlist_t **); 407 extern boolean_t zpool_is_bootable(zpool_handle_t *); 408 409 /* 410 * Import and export functions 411 */ 412 extern int zpool_export(zpool_handle_t *, boolean_t, const char *); 413 extern int zpool_export_force(zpool_handle_t *, const char *); 414 extern int zpool_import(libzfs_handle_t *, nvlist_t *, const char *, 415 char *altroot); 416 extern int zpool_import_props(libzfs_handle_t *, nvlist_t *, const char *, 417 nvlist_t *, int); 418 extern void zpool_print_unsup_feat(nvlist_t *config); 419 420 /* 421 * Miscellaneous pool functions 422 */ 423 struct zfs_cmd; 424 425 extern const char *zfs_history_event_names[]; 426 427 typedef enum { 428 VDEV_NAME_PATH = 1 << 0, 429 VDEV_NAME_GUID = 1 << 1, 430 VDEV_NAME_FOLLOW_LINKS = 1 << 2, 431 VDEV_NAME_TYPE_ID = 1 << 3, 432 } vdev_name_t; 433 434 extern char *zpool_vdev_name(libzfs_handle_t *, zpool_handle_t *, nvlist_t *, 435 int name_flags); 436 extern int zpool_upgrade(zpool_handle_t *, uint64_t); 437 extern int zpool_get_history(zpool_handle_t *, nvlist_t **, uint64_t *, 438 boolean_t *); 439 extern void zpool_obj_to_path(zpool_handle_t *, uint64_t, uint64_t, char *, 440 size_t len); 441 extern int zfs_ioctl(libzfs_handle_t *, int, struct zfs_cmd *); 442 extern int zpool_get_physpath(zpool_handle_t *, char *, size_t); 443 extern void zpool_explain_recover(libzfs_handle_t *, const char *, int, 444 nvlist_t *); 445 extern int zpool_checkpoint(zpool_handle_t *); 446 extern int zpool_discard_checkpoint(zpool_handle_t *); 447 448 /* 449 * Basic handle manipulations. These functions do not create or destroy the 450 * underlying datasets, only the references to them. 451 */ 452 extern zfs_handle_t *zfs_open(libzfs_handle_t *, const char *, int); 453 extern zfs_handle_t *zfs_handle_dup(zfs_handle_t *); 454 extern void zfs_close(zfs_handle_t *); 455 extern zfs_type_t zfs_get_type(const zfs_handle_t *); 456 extern const char *zfs_get_name(const zfs_handle_t *); 457 extern zpool_handle_t *zfs_get_pool_handle(const zfs_handle_t *); 458 extern const char *zfs_get_pool_name(const zfs_handle_t *); 459 460 /* 461 * Property management functions. Some functions are shared with the kernel, 462 * and are found in sys/fs/zfs.h. 463 */ 464 465 /* 466 * zfs dataset property management 467 */ 468 extern const char *zfs_prop_default_string(zfs_prop_t); 469 extern uint64_t zfs_prop_default_numeric(zfs_prop_t); 470 extern const char *zfs_prop_column_name(zfs_prop_t); 471 extern boolean_t zfs_prop_align_right(zfs_prop_t); 472 473 extern nvlist_t *zfs_valid_proplist(libzfs_handle_t *, zfs_type_t, nvlist_t *, 474 uint64_t, zfs_handle_t *, zpool_handle_t *, boolean_t, const char *); 475 476 extern const char *zfs_prop_to_name(zfs_prop_t); 477 extern int zfs_prop_set(zfs_handle_t *, const char *, const char *); 478 extern int zfs_prop_set_list(zfs_handle_t *, nvlist_t *); 479 extern int zfs_prop_get(zfs_handle_t *, zfs_prop_t, char *, size_t, 480 zprop_source_t *, char *, size_t, boolean_t); 481 extern int zfs_prop_get_recvd(zfs_handle_t *, const char *, char *, size_t, 482 boolean_t); 483 extern int zfs_prop_get_numeric(zfs_handle_t *, zfs_prop_t, uint64_t *, 484 zprop_source_t *, char *, size_t); 485 extern int zfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname, 486 uint64_t *propvalue); 487 extern int zfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname, 488 char *propbuf, int proplen, boolean_t literal); 489 extern int zfs_prop_get_written_int(zfs_handle_t *zhp, const char *propname, 490 uint64_t *propvalue); 491 extern int zfs_prop_get_written(zfs_handle_t *zhp, const char *propname, 492 char *propbuf, int proplen, boolean_t literal); 493 extern int zfs_prop_get_feature(zfs_handle_t *zhp, const char *propname, 494 char *buf, size_t len); 495 extern uint64_t zfs_prop_get_int(zfs_handle_t *, zfs_prop_t); 496 extern int zfs_prop_inherit(zfs_handle_t *, const char *, boolean_t); 497 extern const char *zfs_prop_values(zfs_prop_t); 498 extern int zfs_prop_is_string(zfs_prop_t prop); 499 extern nvlist_t *zfs_get_user_props(zfs_handle_t *); 500 extern nvlist_t *zfs_get_recvd_props(zfs_handle_t *); 501 extern nvlist_t *zfs_get_clones_nvl(zfs_handle_t *); 502 503 504 /* 505 * zfs encryption management 506 */ 507 extern int zfs_crypto_get_encryption_root(zfs_handle_t *, boolean_t *, char *); 508 extern int zfs_crypto_create(libzfs_handle_t *, char *, nvlist_t *, nvlist_t *, 509 boolean_t stdin_available, uint8_t **, uint_t *); 510 extern int zfs_crypto_clone_check(libzfs_handle_t *, zfs_handle_t *, char *, 511 nvlist_t *); 512 extern int zfs_crypto_attempt_load_keys(libzfs_handle_t *, char *); 513 extern int zfs_crypto_load_key(zfs_handle_t *, boolean_t, char *); 514 extern int zfs_crypto_unload_key(zfs_handle_t *); 515 extern int zfs_crypto_rewrap(zfs_handle_t *, nvlist_t *, boolean_t); 516 517 typedef struct zprop_list { 518 int pl_prop; 519 char *pl_user_prop; 520 struct zprop_list *pl_next; 521 boolean_t pl_all; 522 size_t pl_width; 523 size_t pl_recvd_width; 524 boolean_t pl_fixed; 525 } zprop_list_t; 526 527 extern int zfs_expand_proplist(zfs_handle_t *, zprop_list_t **, boolean_t, 528 boolean_t); 529 extern void zfs_prune_proplist(zfs_handle_t *, uint8_t *); 530 531 #define ZFS_MOUNTPOINT_NONE "none" 532 #define ZFS_MOUNTPOINT_LEGACY "legacy" 533 534 #define ZFS_FEATURE_DISABLED "disabled" 535 #define ZFS_FEATURE_ENABLED "enabled" 536 #define ZFS_FEATURE_ACTIVE "active" 537 538 #define ZFS_UNSUPPORTED_INACTIVE "inactive" 539 #define ZFS_UNSUPPORTED_READONLY "readonly" 540 541 /* 542 * zpool property management 543 */ 544 extern int zpool_expand_proplist(zpool_handle_t *, zprop_list_t **); 545 extern int zpool_prop_get_feature(zpool_handle_t *, const char *, char *, 546 size_t); 547 extern const char *zpool_prop_default_string(zpool_prop_t); 548 extern uint64_t zpool_prop_default_numeric(zpool_prop_t); 549 extern const char *zpool_prop_column_name(zpool_prop_t); 550 extern boolean_t zpool_prop_align_right(zpool_prop_t); 551 552 /* 553 * Functions shared by zfs and zpool property management. 554 */ 555 extern int zprop_iter(zprop_func func, void *cb, boolean_t show_all, 556 boolean_t ordered, zfs_type_t type); 557 extern int zprop_get_list(libzfs_handle_t *, char *, zprop_list_t **, 558 zfs_type_t); 559 extern void zprop_free_list(zprop_list_t *); 560 561 #define ZFS_GET_NCOLS 5 562 563 typedef enum { 564 GET_COL_NONE, 565 GET_COL_NAME, 566 GET_COL_PROPERTY, 567 GET_COL_VALUE, 568 GET_COL_RECVD, 569 GET_COL_SOURCE 570 } zfs_get_column_t; 571 572 /* 573 * Functions for printing zfs or zpool properties 574 */ 575 typedef struct zprop_get_cbdata { 576 int cb_sources; 577 zfs_get_column_t cb_columns[ZFS_GET_NCOLS]; 578 int cb_colwidths[ZFS_GET_NCOLS + 1]; 579 boolean_t cb_scripted; 580 boolean_t cb_literal; 581 boolean_t cb_first; 582 zprop_list_t *cb_proplist; 583 zfs_type_t cb_type; 584 } zprop_get_cbdata_t; 585 586 void zprop_print_one_property(const char *, zprop_get_cbdata_t *, 587 const char *, const char *, zprop_source_t, const char *, 588 const char *); 589 590 /* 591 * Iterator functions. 592 */ 593 typedef int (*zfs_iter_f)(zfs_handle_t *, void *); 594 extern int zfs_iter_root(libzfs_handle_t *, zfs_iter_f, void *); 595 extern int zfs_iter_children(zfs_handle_t *, zfs_iter_f, void *); 596 extern int zfs_iter_dependents(zfs_handle_t *, boolean_t, zfs_iter_f, void *); 597 extern int zfs_iter_filesystems(zfs_handle_t *, zfs_iter_f, void *); 598 extern int zfs_iter_snapshots(zfs_handle_t *, boolean_t, zfs_iter_f, void *); 599 extern int zfs_iter_snapshots_sorted(zfs_handle_t *, zfs_iter_f, void *); 600 extern int zfs_iter_snapspec(zfs_handle_t *, const char *, zfs_iter_f, void *); 601 extern int zfs_iter_bookmarks(zfs_handle_t *, zfs_iter_f, void *); 602 603 typedef struct get_all_cb { 604 zfs_handle_t **cb_handles; 605 size_t cb_alloc; 606 size_t cb_used; 607 } get_all_cb_t; 608 609 void zfs_foreach_mountpoint(libzfs_handle_t *, zfs_handle_t **, size_t, 610 zfs_iter_f, void *, boolean_t); 611 void libzfs_add_handle(get_all_cb_t *, zfs_handle_t *); 612 613 /* 614 * Functions to create and destroy datasets. 615 */ 616 extern int zfs_create(libzfs_handle_t *, const char *, zfs_type_t, 617 nvlist_t *); 618 extern int zfs_create_ancestors(libzfs_handle_t *, const char *); 619 extern int zfs_destroy(zfs_handle_t *, boolean_t); 620 extern int zfs_destroy_snaps(zfs_handle_t *, char *, boolean_t); 621 extern int zfs_destroy_snaps_nvl(libzfs_handle_t *, nvlist_t *, boolean_t); 622 extern int zfs_clone(zfs_handle_t *, const char *, nvlist_t *); 623 extern int zfs_snapshot(libzfs_handle_t *, const char *, boolean_t, nvlist_t *); 624 extern int zfs_snapshot_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, 625 nvlist_t *props); 626 extern int zfs_rollback(zfs_handle_t *, zfs_handle_t *, boolean_t); 627 extern int zfs_rename(zfs_handle_t *, const char *, boolean_t, boolean_t); 628 629 typedef struct sendflags { 630 /* print informational messages (ie, -v was specified) */ 631 boolean_t verbose; 632 633 /* recursive send (ie, -R) */ 634 boolean_t replicate; 635 636 /* for incrementals, do all intermediate snapshots */ 637 boolean_t doall; 638 639 /* if dataset is a clone, do incremental from its origin */ 640 boolean_t fromorigin; 641 642 /* do deduplication */ 643 boolean_t dedup; 644 645 /* send properties (ie, -p) */ 646 boolean_t props; 647 648 /* do not send (no-op, ie. -n) */ 649 boolean_t dryrun; 650 651 /* parsable verbose output (ie. -P) */ 652 boolean_t parsable; 653 654 /* show progress (ie. -v) */ 655 boolean_t progress; 656 657 /* large blocks (>128K) are permitted */ 658 boolean_t largeblock; 659 660 /* WRITE_EMBEDDED records of type DATA are permitted */ 661 boolean_t embed_data; 662 663 /* compressed WRITE records are permitted */ 664 boolean_t compress; 665 666 /* raw encrypted records are permitted */ 667 boolean_t raw; 668 669 /* only send received properties (ie. -b) */ 670 boolean_t backup; 671 672 /* include snapshot holds in send stream */ 673 boolean_t holds; 674 } sendflags_t; 675 676 typedef boolean_t (snapfilter_cb_t)(zfs_handle_t *, void *); 677 678 extern int zfs_send(zfs_handle_t *, const char *, const char *, 679 sendflags_t *, int, snapfilter_cb_t, void *, nvlist_t **); 680 extern int zfs_send_one(zfs_handle_t *, const char *, int, enum lzc_send_flags); 681 extern int zfs_send_resume(libzfs_handle_t *, sendflags_t *, int outfd, 682 const char *); 683 extern nvlist_t *zfs_send_resume_token_to_nvlist(libzfs_handle_t *hdl, 684 const char *token); 685 686 extern int zfs_promote(zfs_handle_t *); 687 extern int zfs_hold(zfs_handle_t *, const char *, const char *, 688 boolean_t, int); 689 extern int zfs_hold_nvl(zfs_handle_t *, int, nvlist_t *); 690 extern int zfs_release(zfs_handle_t *, const char *, const char *, boolean_t); 691 extern int zfs_get_holds(zfs_handle_t *, nvlist_t **); 692 extern uint64_t zvol_volsize_to_reservation(zpool_handle_t *, uint64_t, 693 nvlist_t *); 694 695 typedef int (*zfs_userspace_cb_t)(void *arg, const char *domain, 696 uid_t rid, uint64_t space); 697 698 extern int zfs_userspace(zfs_handle_t *, zfs_userquota_prop_t, 699 zfs_userspace_cb_t, void *); 700 701 extern int zfs_get_fsacl(zfs_handle_t *, nvlist_t **); 702 extern int zfs_set_fsacl(zfs_handle_t *, boolean_t, nvlist_t *); 703 704 typedef struct recvflags { 705 /* print informational messages (ie, -v was specified) */ 706 boolean_t verbose; 707 708 /* the destination is a prefix, not the exact fs (ie, -d) */ 709 boolean_t isprefix; 710 711 /* 712 * Only the tail of the sent snapshot path is appended to the 713 * destination to determine the received snapshot name (ie, -e). 714 */ 715 boolean_t istail; 716 717 /* do not actually do the recv, just check if it would work (ie, -n) */ 718 boolean_t dryrun; 719 720 /* rollback/destroy filesystems as necessary (eg, -F) */ 721 boolean_t force; 722 723 /* set "canmount=off" on all modified filesystems */ 724 boolean_t canmountoff; 725 726 /* 727 * Mark the file systems as "resumable" and do not destroy them if the 728 * receive is interrupted 729 */ 730 boolean_t resumable; 731 732 /* byteswap flag is used internally; callers need not specify */ 733 boolean_t byteswap; 734 735 /* do not mount file systems as they are extracted (private) */ 736 boolean_t nomount; 737 738 /* Was holds flag set in the compound header? */ 739 boolean_t holds; 740 741 /* skip receive of snapshot holds */ 742 boolean_t skipholds; 743 } recvflags_t; 744 745 extern int zfs_receive(libzfs_handle_t *, const char *, nvlist_t *, 746 recvflags_t *, int, avl_tree_t *); 747 748 typedef enum diff_flags { 749 ZFS_DIFF_PARSEABLE = 0x1, 750 ZFS_DIFF_TIMESTAMP = 0x2, 751 ZFS_DIFF_CLASSIFY = 0x4 752 } diff_flags_t; 753 754 extern int zfs_show_diffs(zfs_handle_t *, int, const char *, const char *, 755 int); 756 757 /* 758 * Miscellaneous functions. 759 */ 760 extern const char *zfs_type_to_name(zfs_type_t); 761 extern void zfs_refresh_properties(zfs_handle_t *); 762 extern int zfs_name_valid(const char *, zfs_type_t); 763 extern zfs_handle_t *zfs_path_to_zhandle(libzfs_handle_t *, char *, zfs_type_t); 764 extern int zfs_parent_name(zfs_handle_t *, char *, size_t); 765 extern boolean_t zfs_dataset_exists(libzfs_handle_t *, const char *, 766 zfs_type_t); 767 extern int zfs_spa_version(zfs_handle_t *, int *); 768 extern boolean_t zfs_bookmark_exists(const char *path); 769 770 /* 771 * Mount support functions. 772 */ 773 extern boolean_t is_mounted(libzfs_handle_t *, const char *special, char **); 774 extern boolean_t zfs_is_mounted(zfs_handle_t *, char **); 775 extern int zfs_mount(zfs_handle_t *, const char *, int); 776 extern int zfs_unmount(zfs_handle_t *, const char *, int); 777 extern int zfs_unmountall(zfs_handle_t *, int); 778 779 /* 780 * Share support functions. 781 */ 782 extern boolean_t zfs_is_shared(zfs_handle_t *); 783 extern int zfs_share(zfs_handle_t *); 784 extern int zfs_unshare(zfs_handle_t *); 785 786 /* 787 * Protocol-specific share support functions. 788 */ 789 extern boolean_t zfs_is_shared_nfs(zfs_handle_t *, char **); 790 extern boolean_t zfs_is_shared_smb(zfs_handle_t *, char **); 791 extern int zfs_share_nfs(zfs_handle_t *); 792 extern int zfs_share_smb(zfs_handle_t *); 793 extern int zfs_shareall(zfs_handle_t *); 794 extern int zfs_unshare_nfs(zfs_handle_t *, const char *); 795 extern int zfs_unshare_smb(zfs_handle_t *, const char *); 796 extern int zfs_unshareall_nfs(zfs_handle_t *); 797 extern int zfs_unshareall_smb(zfs_handle_t *); 798 extern int zfs_unshareall_bypath(zfs_handle_t *, const char *); 799 extern int zfs_unshareall(zfs_handle_t *); 800 extern int zfs_deleg_share_nfs(libzfs_handle_t *, char *, char *, char *, 801 void *, void *, int, zfs_share_op_t); 802 803 /* 804 * When dealing with nvlists, verify() is extremely useful 805 */ 806 #ifdef NDEBUG 807 #define verify(EX) ((void)(EX)) 808 #else 809 #define verify(EX) assert(EX) 810 #endif 811 812 extern int zfs_nicestrtonum(libzfs_handle_t *, const char *, uint64_t *); 813 814 /* 815 * Given a device or file, determine if it is part of a pool. 816 */ 817 extern int zpool_in_use(libzfs_handle_t *, int, pool_state_t *, char **, 818 boolean_t *); 819 820 /* 821 * Label manipulation. 822 */ 823 extern int zpool_clear_label(int); 824 825 /* is this zvol valid for use as a dump device? */ 826 extern int zvol_check_dump_config(char *); 827 828 /* 829 * Management interfaces for SMB ACL files 830 */ 831 832 int zfs_smb_acl_add(libzfs_handle_t *, char *, char *, char *); 833 int zfs_smb_acl_remove(libzfs_handle_t *, char *, char *, char *); 834 int zfs_smb_acl_purge(libzfs_handle_t *, char *, char *); 835 int zfs_smb_acl_rename(libzfs_handle_t *, char *, char *, char *, char *); 836 837 /* 838 * Enable and disable datasets within a pool by mounting/unmounting and 839 * sharing/unsharing them. 840 */ 841 extern int zpool_enable_datasets(zpool_handle_t *, const char *, int); 842 extern int zpool_disable_datasets(zpool_handle_t *, boolean_t); 843 844 /* 845 * Mappings between vdev and FRU. 846 */ 847 extern void libzfs_fru_refresh(libzfs_handle_t *); 848 extern const char *libzfs_fru_lookup(libzfs_handle_t *, const char *); 849 extern const char *libzfs_fru_devpath(libzfs_handle_t *, const char *); 850 extern boolean_t libzfs_fru_compare(libzfs_handle_t *, const char *, 851 const char *); 852 extern boolean_t libzfs_fru_notself(libzfs_handle_t *, const char *); 853 extern int zpool_fru_set(zpool_handle_t *, uint64_t, const char *); 854 855 extern int zfs_get_hole_count(const char *, uint64_t *, uint64_t *); 856 extern int zfs_remap_indirects(libzfs_handle_t *hdl, const char *); 857 858 /* Allow consumers to initialize libshare externally for optimal performance */ 859 extern int zfs_init_libshare_arg(libzfs_handle_t *, int, void *); 860 /* 861 * For most consumers, zfs_init_libshare_arg is sufficient on its own, and 862 * zfs_uninit_libshare is unnecessary. zfs_uninit_libshare should only be called 863 * if the caller has already initialized libshare for one set of zfs handles, 864 * and wishes to share or unshare filesystems outside of that set. In that case, 865 * the caller should uninitialize libshare, and then re-initialize it with the 866 * new handles being shared or unshared. 867 */ 868 extern void zfs_uninit_libshare(libzfs_handle_t *); 869 #ifdef __cplusplus 870 } 871 #endif 872 873 #endif /* _LIBZFS_H */ 874