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, 2015 by Delphix. All rights reserved. 26 * Copyright (c) 2012, Joyent, Inc. All rights reserved. 27 * Copyright (c) 2012 Martin Matuska <mm@FreeBSD.org>. All rights reserved. 28 * Copyright (c) 2013 Steven Hartland. All rights reserved. 29 * Copyright (c) 2014 Integros [integros.com] 30 * Copyright 2016 Nexenta Systems, 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 <sys/zfs_ioctl.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_UNKNOWN 133 } zfs_error_t; 134 135 /* 136 * The following data structures are all part 137 * of the zfs_allow_t data structure which is 138 * used for printing 'allow' permissions. 139 * It is a linked list of zfs_allow_t's which 140 * then contain avl tree's for user/group/sets/... 141 * and each one of the entries in those trees have 142 * avl tree's for the permissions they belong to and 143 * whether they are local,descendent or local+descendent 144 * permissions. The AVL trees are used primarily for 145 * sorting purposes, but also so that we can quickly find 146 * a given user and or permission. 147 */ 148 typedef struct zfs_perm_node { 149 avl_node_t z_node; 150 char z_pname[MAXPATHLEN]; 151 } zfs_perm_node_t; 152 153 typedef struct zfs_allow_node { 154 avl_node_t z_node; 155 char z_key[MAXPATHLEN]; /* name, such as joe */ 156 avl_tree_t z_localdescend; /* local+descendent perms */ 157 avl_tree_t z_local; /* local permissions */ 158 avl_tree_t z_descend; /* descendent permissions */ 159 } zfs_allow_node_t; 160 161 typedef struct zfs_allow { 162 struct zfs_allow *z_next; 163 char z_setpoint[MAXPATHLEN]; 164 avl_tree_t z_sets; 165 avl_tree_t z_crperms; 166 avl_tree_t z_user; 167 avl_tree_t z_group; 168 avl_tree_t z_everyone; 169 } zfs_allow_t; 170 171 /* 172 * Basic handle types 173 */ 174 typedef struct zfs_handle zfs_handle_t; 175 typedef struct zpool_handle zpool_handle_t; 176 typedef struct libzfs_handle libzfs_handle_t; 177 178 /* 179 * Library initialization 180 */ 181 extern libzfs_handle_t *libzfs_init(void); 182 extern void libzfs_fini(libzfs_handle_t *); 183 184 extern libzfs_handle_t *zpool_get_handle(zpool_handle_t *); 185 extern libzfs_handle_t *zfs_get_handle(zfs_handle_t *); 186 187 extern void libzfs_print_on_error(libzfs_handle_t *, boolean_t); 188 189 extern void zfs_save_arguments(int argc, char **, char *, int); 190 extern int zpool_log_history(libzfs_handle_t *, const char *); 191 192 extern int libzfs_errno(libzfs_handle_t *); 193 extern const char *libzfs_error_action(libzfs_handle_t *); 194 extern const char *libzfs_error_description(libzfs_handle_t *); 195 extern int zfs_standard_error(libzfs_handle_t *, int, const char *); 196 extern void libzfs_mnttab_init(libzfs_handle_t *); 197 extern void libzfs_mnttab_fini(libzfs_handle_t *); 198 extern void libzfs_mnttab_cache(libzfs_handle_t *, boolean_t); 199 extern int libzfs_mnttab_find(libzfs_handle_t *, const char *, 200 struct mnttab *); 201 extern void libzfs_mnttab_add(libzfs_handle_t *, const char *, 202 const char *, const char *); 203 extern void libzfs_mnttab_remove(libzfs_handle_t *, const char *); 204 205 /* 206 * Basic handle functions 207 */ 208 extern zpool_handle_t *zpool_open(libzfs_handle_t *, const char *); 209 extern zpool_handle_t *zpool_open_canfail(libzfs_handle_t *, const char *); 210 extern void zpool_close(zpool_handle_t *); 211 extern const char *zpool_get_name(zpool_handle_t *); 212 extern int zpool_get_state(zpool_handle_t *); 213 extern const char *zpool_state_to_name(vdev_state_t, vdev_aux_t); 214 extern const char *zpool_pool_state_to_name(pool_state_t); 215 extern void zpool_free_handles(libzfs_handle_t *); 216 extern int zpool_nextboot(libzfs_handle_t *, uint64_t, uint64_t, const char *); 217 218 /* 219 * Iterate over all active pools in the system. 220 */ 221 typedef int (*zpool_iter_f)(zpool_handle_t *, void *); 222 extern int zpool_iter(libzfs_handle_t *, zpool_iter_f, void *); 223 extern boolean_t zpool_skip_pool(const char *); 224 225 /* 226 * Functions to create and destroy pools 227 */ 228 extern int zpool_create(libzfs_handle_t *, const char *, nvlist_t *, 229 nvlist_t *, nvlist_t *); 230 extern int zpool_destroy(zpool_handle_t *, const char *); 231 extern int zpool_add(zpool_handle_t *, nvlist_t *); 232 233 typedef struct splitflags { 234 /* do not split, but return the config that would be split off */ 235 int dryrun : 1; 236 237 /* after splitting, import the pool */ 238 int import : 1; 239 } splitflags_t; 240 241 /* 242 * Functions to manipulate pool and vdev state 243 */ 244 extern int zpool_scan(zpool_handle_t *, pool_scan_func_t); 245 extern int zpool_clear(zpool_handle_t *, const char *, nvlist_t *); 246 extern int zpool_reguid(zpool_handle_t *); 247 extern int zpool_reopen(zpool_handle_t *); 248 249 extern int zpool_vdev_online(zpool_handle_t *, const char *, int, 250 vdev_state_t *); 251 extern int zpool_vdev_offline(zpool_handle_t *, const char *, boolean_t); 252 extern int zpool_vdev_attach(zpool_handle_t *, const char *, 253 const char *, nvlist_t *, int); 254 extern int zpool_vdev_detach(zpool_handle_t *, const char *); 255 extern int zpool_vdev_remove(zpool_handle_t *, const char *); 256 extern int zpool_vdev_split(zpool_handle_t *, char *, nvlist_t **, nvlist_t *, 257 splitflags_t); 258 259 extern int zpool_vdev_fault(zpool_handle_t *, uint64_t, vdev_aux_t); 260 extern int zpool_vdev_degrade(zpool_handle_t *, uint64_t, vdev_aux_t); 261 extern int zpool_vdev_clear(zpool_handle_t *, uint64_t); 262 263 extern nvlist_t *zpool_find_vdev(zpool_handle_t *, const char *, boolean_t *, 264 boolean_t *, boolean_t *); 265 extern nvlist_t *zpool_find_vdev_by_physpath(zpool_handle_t *, const char *, 266 boolean_t *, boolean_t *, boolean_t *); 267 extern int zpool_label_disk(libzfs_handle_t *, zpool_handle_t *, const char *); 268 269 /* 270 * Functions to manage pool properties 271 */ 272 extern int zpool_set_prop(zpool_handle_t *, const char *, const char *); 273 extern int zpool_get_prop(zpool_handle_t *, zpool_prop_t, char *, 274 size_t proplen, zprop_source_t *, boolean_t); 275 extern uint64_t zpool_get_prop_int(zpool_handle_t *, zpool_prop_t, 276 zprop_source_t *); 277 278 extern const char *zpool_prop_to_name(zpool_prop_t); 279 extern const char *zpool_prop_values(zpool_prop_t); 280 281 /* 282 * Pool health statistics. 283 */ 284 typedef enum { 285 /* 286 * The following correspond to faults as defined in the (fault.fs.zfs.*) 287 * event namespace. Each is associated with a corresponding message ID. 288 */ 289 ZPOOL_STATUS_CORRUPT_CACHE, /* corrupt /kernel/drv/zpool.cache */ 290 ZPOOL_STATUS_MISSING_DEV_R, /* missing device with replicas */ 291 ZPOOL_STATUS_MISSING_DEV_NR, /* missing device with no replicas */ 292 ZPOOL_STATUS_CORRUPT_LABEL_R, /* bad device label with replicas */ 293 ZPOOL_STATUS_CORRUPT_LABEL_NR, /* bad device label with no replicas */ 294 ZPOOL_STATUS_BAD_GUID_SUM, /* sum of device guids didn't match */ 295 ZPOOL_STATUS_CORRUPT_POOL, /* pool metadata is corrupted */ 296 ZPOOL_STATUS_CORRUPT_DATA, /* data errors in user (meta)data */ 297 ZPOOL_STATUS_FAILING_DEV, /* device experiencing errors */ 298 ZPOOL_STATUS_VERSION_NEWER, /* newer on-disk version */ 299 ZPOOL_STATUS_HOSTID_MISMATCH, /* last accessed by another system */ 300 ZPOOL_STATUS_IO_FAILURE_WAIT, /* failed I/O, failmode 'wait' */ 301 ZPOOL_STATUS_IO_FAILURE_CONTINUE, /* failed I/O, failmode 'continue' */ 302 ZPOOL_STATUS_BAD_LOG, /* cannot read log chain(s) */ 303 304 /* 305 * If the pool has unsupported features but can still be opened in 306 * read-only mode, its status is ZPOOL_STATUS_UNSUP_FEAT_WRITE. If the 307 * pool has unsupported features but cannot be opened at all, its 308 * status is ZPOOL_STATUS_UNSUP_FEAT_READ. 309 */ 310 ZPOOL_STATUS_UNSUP_FEAT_READ, /* unsupported features for read */ 311 ZPOOL_STATUS_UNSUP_FEAT_WRITE, /* unsupported features for write */ 312 313 /* 314 * These faults have no corresponding message ID. At the time we are 315 * checking the status, the original reason for the FMA fault (I/O or 316 * checksum errors) has been lost. 317 */ 318 ZPOOL_STATUS_FAULTED_DEV_R, /* faulted device with replicas */ 319 ZPOOL_STATUS_FAULTED_DEV_NR, /* faulted device with no replicas */ 320 321 /* 322 * The following are not faults per se, but still an error possibly 323 * requiring administrative attention. There is no corresponding 324 * message ID. 325 */ 326 ZPOOL_STATUS_VERSION_OLDER, /* older legacy on-disk version */ 327 ZPOOL_STATUS_FEAT_DISABLED, /* supported features are disabled */ 328 ZPOOL_STATUS_RESILVERING, /* device being resilvered */ 329 ZPOOL_STATUS_OFFLINE_DEV, /* device offline */ 330 ZPOOL_STATUS_REMOVED_DEV, /* removed device */ 331 ZPOOL_STATUS_NON_NATIVE_ASHIFT, /* (e.g. 512e dev with ashift of 9) */ 332 333 /* 334 * Finally, the following indicates a healthy pool. 335 */ 336 ZPOOL_STATUS_OK 337 } zpool_status_t; 338 339 extern zpool_status_t zpool_get_status(zpool_handle_t *, char **); 340 extern zpool_status_t zpool_import_status(nvlist_t *, char **); 341 extern void zpool_dump_ddt(const ddt_stat_t *dds, const ddt_histogram_t *ddh); 342 343 /* 344 * Statistics and configuration functions. 345 */ 346 extern nvlist_t *zpool_get_config(zpool_handle_t *, nvlist_t **); 347 extern nvlist_t *zpool_get_features(zpool_handle_t *); 348 extern int zpool_refresh_stats(zpool_handle_t *, boolean_t *); 349 extern int zpool_get_errlog(zpool_handle_t *, nvlist_t **); 350 351 /* 352 * Import and export functions 353 */ 354 extern int zpool_export(zpool_handle_t *, boolean_t, const char *); 355 extern int zpool_export_force(zpool_handle_t *, const char *); 356 extern int zpool_import(libzfs_handle_t *, nvlist_t *, const char *, 357 char *altroot); 358 extern int zpool_import_props(libzfs_handle_t *, nvlist_t *, const char *, 359 nvlist_t *, int); 360 extern void zpool_print_unsup_feat(nvlist_t *config); 361 362 /* 363 * Search for pools to import 364 */ 365 366 typedef struct importargs { 367 char **path; /* a list of paths to search */ 368 int paths; /* number of paths to search */ 369 char *poolname; /* name of a pool to find */ 370 uint64_t guid; /* guid of a pool to find */ 371 char *cachefile; /* cachefile to use for import */ 372 int can_be_active : 1; /* can the pool be active? */ 373 int unique : 1; /* does 'poolname' already exist? */ 374 int exists : 1; /* set on return if pool already exists */ 375 } importargs_t; 376 377 extern nvlist_t *zpool_search_import(libzfs_handle_t *, importargs_t *); 378 379 /* legacy pool search routines */ 380 extern nvlist_t *zpool_find_import(libzfs_handle_t *, int, char **); 381 extern nvlist_t *zpool_find_import_cached(libzfs_handle_t *, const char *, 382 char *, uint64_t); 383 384 /* 385 * Miscellaneous pool functions 386 */ 387 struct zfs_cmd; 388 389 extern const char *zfs_history_event_names[]; 390 391 extern char *zpool_vdev_name(libzfs_handle_t *, zpool_handle_t *, nvlist_t *, 392 boolean_t verbose); 393 extern int zpool_upgrade(zpool_handle_t *, uint64_t); 394 extern int zpool_get_history(zpool_handle_t *, nvlist_t **); 395 extern int zpool_history_unpack(char *, uint64_t, uint64_t *, 396 nvlist_t ***, uint_t *); 397 extern void zpool_obj_to_path(zpool_handle_t *, uint64_t, uint64_t, char *, 398 size_t len); 399 extern int zfs_ioctl(libzfs_handle_t *, int request, struct zfs_cmd *); 400 extern int zpool_get_physpath(zpool_handle_t *, char *, size_t); 401 extern void zpool_explain_recover(libzfs_handle_t *, const char *, int, 402 nvlist_t *); 403 404 /* 405 * Basic handle manipulations. These functions do not create or destroy the 406 * underlying datasets, only the references to them. 407 */ 408 extern zfs_handle_t *zfs_open(libzfs_handle_t *, const char *, int); 409 extern zfs_handle_t *zfs_handle_dup(zfs_handle_t *); 410 extern void zfs_close(zfs_handle_t *); 411 extern zfs_type_t zfs_get_type(const zfs_handle_t *); 412 extern const char *zfs_get_name(const zfs_handle_t *); 413 extern zpool_handle_t *zfs_get_pool_handle(const zfs_handle_t *); 414 extern const char *zfs_get_pool_name(const zfs_handle_t *); 415 416 /* 417 * Property management functions. Some functions are shared with the kernel, 418 * and are found in sys/fs/zfs.h. 419 */ 420 421 /* 422 * zfs dataset property management 423 */ 424 extern const char *zfs_prop_default_string(zfs_prop_t); 425 extern uint64_t zfs_prop_default_numeric(zfs_prop_t); 426 extern const char *zfs_prop_column_name(zfs_prop_t); 427 extern boolean_t zfs_prop_align_right(zfs_prop_t); 428 429 extern nvlist_t *zfs_valid_proplist(libzfs_handle_t *, zfs_type_t, 430 nvlist_t *, uint64_t, zfs_handle_t *, zpool_handle_t *, const char *); 431 432 extern const char *zfs_prop_to_name(zfs_prop_t); 433 extern int zfs_prop_set(zfs_handle_t *, const char *, const char *); 434 extern int zfs_prop_set_list(zfs_handle_t *, nvlist_t *); 435 extern int zfs_prop_get(zfs_handle_t *, zfs_prop_t, char *, size_t, 436 zprop_source_t *, char *, size_t, boolean_t); 437 extern int zfs_prop_get_recvd(zfs_handle_t *, const char *, char *, size_t, 438 boolean_t); 439 extern int zfs_prop_get_numeric(zfs_handle_t *, zfs_prop_t, uint64_t *, 440 zprop_source_t *, char *, size_t); 441 extern int zfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname, 442 uint64_t *propvalue); 443 extern int zfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname, 444 char *propbuf, int proplen, boolean_t literal); 445 extern int zfs_prop_get_written_int(zfs_handle_t *zhp, const char *propname, 446 uint64_t *propvalue); 447 extern int zfs_prop_get_written(zfs_handle_t *zhp, const char *propname, 448 char *propbuf, int proplen, boolean_t literal); 449 extern int zfs_prop_get_feature(zfs_handle_t *zhp, const char *propname, 450 char *buf, size_t len); 451 extern uint64_t zfs_prop_get_int(zfs_handle_t *, zfs_prop_t); 452 extern int zfs_prop_inherit(zfs_handle_t *, const char *, boolean_t); 453 extern const char *zfs_prop_values(zfs_prop_t); 454 extern int zfs_prop_is_string(zfs_prop_t prop); 455 extern nvlist_t *zfs_get_user_props(zfs_handle_t *); 456 extern nvlist_t *zfs_get_recvd_props(zfs_handle_t *); 457 extern nvlist_t *zfs_get_clones_nvl(zfs_handle_t *); 458 459 460 typedef struct zprop_list { 461 int pl_prop; 462 char *pl_user_prop; 463 struct zprop_list *pl_next; 464 boolean_t pl_all; 465 size_t pl_width; 466 size_t pl_recvd_width; 467 boolean_t pl_fixed; 468 } zprop_list_t; 469 470 extern int zfs_expand_proplist(zfs_handle_t *, zprop_list_t **, boolean_t, 471 boolean_t); 472 extern void zfs_prune_proplist(zfs_handle_t *, uint8_t *); 473 474 #define ZFS_MOUNTPOINT_NONE "none" 475 #define ZFS_MOUNTPOINT_LEGACY "legacy" 476 477 #define ZFS_FEATURE_DISABLED "disabled" 478 #define ZFS_FEATURE_ENABLED "enabled" 479 #define ZFS_FEATURE_ACTIVE "active" 480 481 #define ZFS_UNSUPPORTED_INACTIVE "inactive" 482 #define ZFS_UNSUPPORTED_READONLY "readonly" 483 484 /* 485 * zpool property management 486 */ 487 extern int zpool_expand_proplist(zpool_handle_t *, zprop_list_t **); 488 extern int zpool_prop_get_feature(zpool_handle_t *, const char *, char *, 489 size_t); 490 extern const char *zpool_prop_default_string(zpool_prop_t); 491 extern uint64_t zpool_prop_default_numeric(zpool_prop_t); 492 extern const char *zpool_prop_column_name(zpool_prop_t); 493 extern boolean_t zpool_prop_align_right(zpool_prop_t); 494 495 /* 496 * Functions shared by zfs and zpool property management. 497 */ 498 extern int zprop_iter(zprop_func func, void *cb, boolean_t show_all, 499 boolean_t ordered, zfs_type_t type); 500 extern int zprop_get_list(libzfs_handle_t *, char *, zprop_list_t **, 501 zfs_type_t); 502 extern void zprop_free_list(zprop_list_t *); 503 504 #define ZFS_GET_NCOLS 5 505 506 typedef enum { 507 GET_COL_NONE, 508 GET_COL_NAME, 509 GET_COL_PROPERTY, 510 GET_COL_VALUE, 511 GET_COL_RECVD, 512 GET_COL_SOURCE 513 } zfs_get_column_t; 514 515 /* 516 * Functions for printing zfs or zpool properties 517 */ 518 typedef struct zprop_get_cbdata { 519 int cb_sources; 520 zfs_get_column_t cb_columns[ZFS_GET_NCOLS]; 521 int cb_colwidths[ZFS_GET_NCOLS + 1]; 522 boolean_t cb_scripted; 523 boolean_t cb_literal; 524 boolean_t cb_first; 525 zprop_list_t *cb_proplist; 526 zfs_type_t cb_type; 527 } zprop_get_cbdata_t; 528 529 void zprop_print_one_property(const char *, zprop_get_cbdata_t *, 530 const char *, const char *, zprop_source_t, const char *, 531 const char *); 532 533 /* 534 * Iterator functions. 535 */ 536 typedef int (*zfs_iter_f)(zfs_handle_t *, void *); 537 extern int zfs_iter_root(libzfs_handle_t *, zfs_iter_f, void *); 538 extern int zfs_iter_children(zfs_handle_t *, zfs_iter_f, void *); 539 extern int zfs_iter_dependents(zfs_handle_t *, boolean_t, zfs_iter_f, void *); 540 extern int zfs_iter_filesystems(zfs_handle_t *, zfs_iter_f, void *); 541 extern int zfs_iter_snapshots(zfs_handle_t *, boolean_t, zfs_iter_f, void *); 542 extern int zfs_iter_snapshots_sorted(zfs_handle_t *, zfs_iter_f, void *); 543 extern int zfs_iter_snapspec(zfs_handle_t *, const char *, zfs_iter_f, void *); 544 extern int zfs_iter_bookmarks(zfs_handle_t *, zfs_iter_f, void *); 545 546 typedef struct get_all_cb { 547 zfs_handle_t **cb_handles; 548 size_t cb_alloc; 549 size_t cb_used; 550 boolean_t cb_verbose; 551 int (*cb_getone)(zfs_handle_t *, void *); 552 } get_all_cb_t; 553 554 void libzfs_add_handle(get_all_cb_t *, zfs_handle_t *); 555 int libzfs_dataset_cmp(const void *, const void *); 556 557 /* 558 * Functions to create and destroy datasets. 559 */ 560 extern int zfs_create(libzfs_handle_t *, const char *, zfs_type_t, 561 nvlist_t *); 562 extern int zfs_create_ancestors(libzfs_handle_t *, const char *); 563 extern int zfs_destroy(zfs_handle_t *, boolean_t); 564 extern int zfs_destroy_snaps(zfs_handle_t *, char *, boolean_t); 565 extern int zfs_destroy_snaps_nvl(libzfs_handle_t *, nvlist_t *, boolean_t); 566 extern int zfs_clone(zfs_handle_t *, const char *, nvlist_t *); 567 extern int zfs_snapshot(libzfs_handle_t *, const char *, boolean_t, nvlist_t *); 568 extern int zfs_snapshot_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, 569 nvlist_t *props); 570 extern int zfs_rollback(zfs_handle_t *, zfs_handle_t *, boolean_t); 571 572 typedef struct renameflags { 573 /* recursive rename */ 574 int recurse : 1; 575 576 /* don't unmount file systems */ 577 int nounmount : 1; 578 579 /* force unmount file systems */ 580 int forceunmount : 1; 581 } renameflags_t; 582 583 extern int zfs_rename(zfs_handle_t *, const char *, const char *, 584 renameflags_t flags); 585 586 typedef struct sendflags { 587 /* print informational messages (ie, -v was specified) */ 588 boolean_t verbose; 589 590 /* recursive send (ie, -R) */ 591 boolean_t replicate; 592 593 /* for incrementals, do all intermediate snapshots */ 594 boolean_t doall; 595 596 /* if dataset is a clone, do incremental from its origin */ 597 boolean_t fromorigin; 598 599 /* do deduplication */ 600 boolean_t dedup; 601 602 /* send properties (ie, -p) */ 603 boolean_t props; 604 605 /* do not send (no-op, ie. -n) */ 606 boolean_t dryrun; 607 608 /* parsable verbose output (ie. -P) */ 609 boolean_t parsable; 610 611 /* show progress (ie. -v) */ 612 boolean_t progress; 613 614 /* large blocks (>128K) are permitted */ 615 boolean_t largeblock; 616 617 /* WRITE_EMBEDDED records of type DATA are permitted */ 618 boolean_t embed_data; 619 } sendflags_t; 620 621 typedef boolean_t (snapfilter_cb_t)(zfs_handle_t *, void *); 622 623 extern int zfs_send(zfs_handle_t *, const char *, const char *, 624 sendflags_t *, int, snapfilter_cb_t, void *, nvlist_t **); 625 extern int zfs_send_one(zfs_handle_t *, const char *, int, enum lzc_send_flags); 626 extern int zfs_send_resume(libzfs_handle_t *, sendflags_t *, int outfd, 627 const char *); 628 extern nvlist_t *zfs_send_resume_token_to_nvlist(libzfs_handle_t *hdl, 629 const char *token); 630 631 extern int zfs_promote(zfs_handle_t *); 632 extern int zfs_hold(zfs_handle_t *, const char *, const char *, 633 boolean_t, int); 634 extern int zfs_hold_nvl(zfs_handle_t *, int, nvlist_t *); 635 extern int zfs_release(zfs_handle_t *, const char *, const char *, boolean_t); 636 extern int zfs_get_holds(zfs_handle_t *, nvlist_t **); 637 extern uint64_t zvol_volsize_to_reservation(uint64_t, nvlist_t *); 638 639 typedef int (*zfs_userspace_cb_t)(void *arg, const char *domain, 640 uid_t rid, uint64_t space); 641 642 extern int zfs_userspace(zfs_handle_t *, zfs_userquota_prop_t, 643 zfs_userspace_cb_t, void *); 644 645 extern int zfs_get_fsacl(zfs_handle_t *, nvlist_t **); 646 extern int zfs_set_fsacl(zfs_handle_t *, boolean_t, nvlist_t *); 647 648 typedef struct recvflags { 649 /* print informational messages (ie, -v was specified) */ 650 boolean_t verbose; 651 652 /* the destination is a prefix, not the exact fs (ie, -d) */ 653 boolean_t isprefix; 654 655 /* 656 * Only the tail of the sent snapshot path is appended to the 657 * destination to determine the received snapshot name (ie, -e). 658 */ 659 boolean_t istail; 660 661 /* do not actually do the recv, just check if it would work (ie, -n) */ 662 boolean_t dryrun; 663 664 /* rollback/destroy filesystems as necessary (eg, -F) */ 665 boolean_t force; 666 667 /* set "canmount=off" on all modified filesystems */ 668 boolean_t canmountoff; 669 670 /* 671 * Mark the file systems as "resumable" and do not destroy them if the 672 * receive is interrupted 673 */ 674 boolean_t resumable; 675 676 /* byteswap flag is used internally; callers need not specify */ 677 boolean_t byteswap; 678 679 /* do not mount file systems as they are extracted (private) */ 680 boolean_t nomount; 681 } recvflags_t; 682 683 extern int zfs_receive(libzfs_handle_t *, const char *, nvlist_t *, 684 recvflags_t *, int, avl_tree_t *); 685 686 typedef enum diff_flags { 687 ZFS_DIFF_PARSEABLE = 0x1, 688 ZFS_DIFF_TIMESTAMP = 0x2, 689 ZFS_DIFF_CLASSIFY = 0x4 690 } diff_flags_t; 691 692 extern int zfs_show_diffs(zfs_handle_t *, int, const char *, const char *, 693 int); 694 695 /* 696 * Miscellaneous functions. 697 */ 698 extern const char *zfs_type_to_name(zfs_type_t); 699 extern void zfs_refresh_properties(zfs_handle_t *); 700 extern int zfs_name_valid(const char *, zfs_type_t); 701 extern zfs_handle_t *zfs_path_to_zhandle(libzfs_handle_t *, char *, zfs_type_t); 702 extern boolean_t zfs_dataset_exists(libzfs_handle_t *, const char *, 703 zfs_type_t); 704 extern int zfs_spa_version(zfs_handle_t *, int *); 705 extern boolean_t zfs_bookmark_exists(const char *path); 706 707 /* 708 * Mount support functions. 709 */ 710 extern boolean_t is_mounted(libzfs_handle_t *, const char *special, char **); 711 extern boolean_t zfs_is_mounted(zfs_handle_t *, char **); 712 extern int zfs_mount(zfs_handle_t *, const char *, int); 713 extern int zfs_unmount(zfs_handle_t *, const char *, int); 714 extern int zfs_unmountall(zfs_handle_t *, int); 715 716 /* 717 * Share support functions. 718 */ 719 extern boolean_t zfs_is_shared(zfs_handle_t *); 720 extern int zfs_share(zfs_handle_t *); 721 extern int zfs_unshare(zfs_handle_t *); 722 723 /* 724 * Protocol-specific share support functions. 725 */ 726 extern boolean_t zfs_is_shared_nfs(zfs_handle_t *, char **); 727 extern boolean_t zfs_is_shared_smb(zfs_handle_t *, char **); 728 extern int zfs_share_nfs(zfs_handle_t *); 729 extern int zfs_share_smb(zfs_handle_t *); 730 extern int zfs_shareall(zfs_handle_t *); 731 extern int zfs_unshare_nfs(zfs_handle_t *, const char *); 732 extern int zfs_unshare_smb(zfs_handle_t *, const char *); 733 extern int zfs_unshareall_nfs(zfs_handle_t *); 734 extern int zfs_unshareall_smb(zfs_handle_t *); 735 extern int zfs_unshareall_bypath(zfs_handle_t *, const char *); 736 extern int zfs_unshareall(zfs_handle_t *); 737 extern int zfs_deleg_share_nfs(libzfs_handle_t *, char *, char *, char *, 738 void *, void *, int, zfs_share_op_t); 739 740 #ifdef __FreeBSD__ 741 /* 742 * FreeBSD-specific jail support function. 743 */ 744 extern int zfs_jail(zfs_handle_t *, int, int); 745 #endif 746 747 /* 748 * When dealing with nvlists, verify() is extremely useful 749 */ 750 #ifndef verify 751 #ifdef NDEBUG 752 #define verify(EX) ((void)(EX)) 753 #else 754 #define verify(EX) assert(EX) 755 #endif 756 #endif 757 758 /* 759 * Utility function to convert a number to a human-readable form. 760 */ 761 extern void zfs_nicenum(uint64_t, char *, size_t); 762 extern int zfs_nicestrtonum(libzfs_handle_t *, const char *, uint64_t *); 763 764 /* 765 * Given a device or file, determine if it is part of a pool. 766 */ 767 extern int zpool_in_use(libzfs_handle_t *, int, pool_state_t *, char **, 768 boolean_t *); 769 770 /* 771 * Label manipulation. 772 */ 773 extern int zpool_read_label(int, nvlist_t **); 774 extern int zpool_clear_label(int); 775 776 /* is this zvol valid for use as a dump device? */ 777 extern int zvol_check_dump_config(char *); 778 779 /* 780 * Management interfaces for SMB ACL files 781 */ 782 783 int zfs_smb_acl_add(libzfs_handle_t *, char *, char *, char *); 784 int zfs_smb_acl_remove(libzfs_handle_t *, char *, char *, char *); 785 int zfs_smb_acl_purge(libzfs_handle_t *, char *, char *); 786 int zfs_smb_acl_rename(libzfs_handle_t *, char *, char *, char *, char *); 787 788 /* 789 * Enable and disable datasets within a pool by mounting/unmounting and 790 * sharing/unsharing them. 791 */ 792 extern int zpool_enable_datasets(zpool_handle_t *, const char *, int); 793 extern int zpool_disable_datasets(zpool_handle_t *, boolean_t); 794 795 /* 796 * Mappings between vdev and FRU. 797 */ 798 extern void libzfs_fru_refresh(libzfs_handle_t *); 799 extern const char *libzfs_fru_lookup(libzfs_handle_t *, const char *); 800 extern const char *libzfs_fru_devpath(libzfs_handle_t *, const char *); 801 extern boolean_t libzfs_fru_compare(libzfs_handle_t *, const char *, 802 const char *); 803 extern boolean_t libzfs_fru_notself(libzfs_handle_t *, const char *); 804 extern int zpool_fru_set(zpool_handle_t *, uint64_t, const char *); 805 806 #ifndef illumos 807 extern int zmount(const char *, const char *, int, char *, char *, int, char *, 808 int); 809 #endif 810 811 #ifdef __cplusplus 812 } 813 #endif 814 815 #endif /* _LIBZFS_H */ 816