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) 2013 Steven Hartland. All rights reserved. 28 * Copyright (c) 2014 Integros [integros.com] 29 * Copyright 2016 Nexenta Systems, Inc. 30 */ 31 32 #ifndef _LIBZFS_H 33 #define _LIBZFS_H 34 35 #include <assert.h> 36 #include <libnvpair.h> 37 #include <sys/mnttab.h> 38 #include <sys/param.h> 39 #include <sys/types.h> 40 #include <sys/varargs.h> 41 #include <sys/fs/zfs.h> 42 #include <sys/avl.h> 43 #include <ucred.h> 44 #include <libzfs_core.h> 45 46 #ifdef __cplusplus 47 extern "C" { 48 #endif 49 50 /* 51 * Miscellaneous ZFS constants 52 */ 53 #define ZFS_MAXNAMELEN MAXNAMELEN 54 #define ZPOOL_MAXNAMELEN MAXNAMELEN 55 #define ZFS_MAXPROPLEN MAXPATHLEN 56 #define ZPOOL_MAXPROPLEN MAXPATHLEN 57 58 /* 59 * libzfs errors 60 */ 61 typedef enum zfs_error { 62 EZFS_SUCCESS = 0, /* no error -- success */ 63 EZFS_NOMEM = 2000, /* out of memory */ 64 EZFS_BADPROP, /* invalid property value */ 65 EZFS_PROPREADONLY, /* cannot set readonly property */ 66 EZFS_PROPTYPE, /* property does not apply to dataset type */ 67 EZFS_PROPNONINHERIT, /* property is not inheritable */ 68 EZFS_PROPSPACE, /* bad quota or reservation */ 69 EZFS_BADTYPE, /* dataset is not of appropriate type */ 70 EZFS_BUSY, /* pool or dataset is busy */ 71 EZFS_EXISTS, /* pool or dataset already exists */ 72 EZFS_NOENT, /* no such pool or dataset */ 73 EZFS_BADSTREAM, /* bad backup stream */ 74 EZFS_DSREADONLY, /* dataset is readonly */ 75 EZFS_VOLTOOBIG, /* volume is too large for 32-bit system */ 76 EZFS_INVALIDNAME, /* invalid dataset name */ 77 EZFS_BADRESTORE, /* unable to restore to destination */ 78 EZFS_BADBACKUP, /* backup failed */ 79 EZFS_BADTARGET, /* bad attach/detach/replace target */ 80 EZFS_NODEVICE, /* no such device in pool */ 81 EZFS_BADDEV, /* invalid device to add */ 82 EZFS_NOREPLICAS, /* no valid replicas */ 83 EZFS_RESILVERING, /* currently resilvering */ 84 EZFS_BADVERSION, /* unsupported version */ 85 EZFS_POOLUNAVAIL, /* pool is currently unavailable */ 86 EZFS_DEVOVERFLOW, /* too many devices in one vdev */ 87 EZFS_BADPATH, /* must be an absolute path */ 88 EZFS_CROSSTARGET, /* rename or clone across pool or dataset */ 89 EZFS_ZONED, /* used improperly in local zone */ 90 EZFS_MOUNTFAILED, /* failed to mount dataset */ 91 EZFS_UMOUNTFAILED, /* failed to unmount dataset */ 92 EZFS_UNSHARENFSFAILED, /* unshare(1M) failed */ 93 EZFS_SHARENFSFAILED, /* share(1M) failed */ 94 EZFS_PERM, /* permission denied */ 95 EZFS_NOSPC, /* out of space */ 96 EZFS_FAULT, /* bad address */ 97 EZFS_IO, /* I/O error */ 98 EZFS_INTR, /* signal received */ 99 EZFS_ISSPARE, /* device is a hot spare */ 100 EZFS_INVALCONFIG, /* invalid vdev configuration */ 101 EZFS_RECURSIVE, /* recursive dependency */ 102 EZFS_NOHISTORY, /* no history object */ 103 EZFS_POOLPROPS, /* couldn't retrieve pool props */ 104 EZFS_POOL_NOTSUP, /* ops not supported for this type of pool */ 105 EZFS_POOL_INVALARG, /* invalid argument for this pool operation */ 106 EZFS_NAMETOOLONG, /* dataset name is too long */ 107 EZFS_OPENFAILED, /* open of device failed */ 108 EZFS_NOCAP, /* couldn't get capacity */ 109 EZFS_LABELFAILED, /* write of label failed */ 110 EZFS_BADWHO, /* invalid permission who */ 111 EZFS_BADPERM, /* invalid permission */ 112 EZFS_BADPERMSET, /* invalid permission set name */ 113 EZFS_NODELEGATION, /* delegated administration is disabled */ 114 EZFS_UNSHARESMBFAILED, /* failed to unshare over smb */ 115 EZFS_SHARESMBFAILED, /* failed to share over smb */ 116 EZFS_BADCACHE, /* bad cache file */ 117 EZFS_ISL2CACHE, /* device is for the level 2 ARC */ 118 EZFS_VDEVNOTSUP, /* unsupported vdev type */ 119 EZFS_NOTSUP, /* ops not supported on this dataset */ 120 EZFS_ACTIVE_SPARE, /* pool has active shared spare devices */ 121 EZFS_UNPLAYED_LOGS, /* log device has unplayed logs */ 122 EZFS_REFTAG_RELE, /* snapshot release: tag not found */ 123 EZFS_REFTAG_HOLD, /* snapshot hold: tag already exists */ 124 EZFS_TAGTOOLONG, /* snapshot hold/rele: tag too long */ 125 EZFS_PIPEFAILED, /* pipe create failed */ 126 EZFS_THREADCREATEFAILED, /* thread create failed */ 127 EZFS_POSTSPLIT_ONLINE, /* onlining a disk after splitting it */ 128 EZFS_SCRUBBING, /* currently scrubbing */ 129 EZFS_NO_SCRUB, /* no active scrub */ 130 EZFS_DIFF, /* general failure of zfs diff */ 131 EZFS_DIFFDATA, /* bad zfs diff data */ 132 EZFS_POOLREADONLY, /* pool is in read-only mode */ 133 EZFS_UNKNOWN 134 } zfs_error_t; 135 136 /* 137 * The following data structures are all part 138 * of the zfs_allow_t data structure which is 139 * used for printing 'allow' permissions. 140 * It is a linked list of zfs_allow_t's which 141 * then contain avl tree's for user/group/sets/... 142 * and each one of the entries in those trees have 143 * avl tree's for the permissions they belong to and 144 * whether they are local,descendent or local+descendent 145 * permissions. The AVL trees are used primarily for 146 * sorting purposes, but also so that we can quickly find 147 * a given user and or permission. 148 */ 149 typedef struct zfs_perm_node { 150 avl_node_t z_node; 151 char z_pname[MAXPATHLEN]; 152 } zfs_perm_node_t; 153 154 typedef struct zfs_allow_node { 155 avl_node_t z_node; 156 char z_key[MAXPATHLEN]; /* name, such as joe */ 157 avl_tree_t z_localdescend; /* local+descendent perms */ 158 avl_tree_t z_local; /* local permissions */ 159 avl_tree_t z_descend; /* descendent permissions */ 160 } zfs_allow_node_t; 161 162 typedef struct zfs_allow { 163 struct zfs_allow *z_next; 164 char z_setpoint[MAXPATHLEN]; 165 avl_tree_t z_sets; 166 avl_tree_t z_crperms; 167 avl_tree_t z_user; 168 avl_tree_t z_group; 169 avl_tree_t z_everyone; 170 } zfs_allow_t; 171 172 /* 173 * Basic handle types 174 */ 175 typedef struct zfs_handle zfs_handle_t; 176 typedef struct zpool_handle zpool_handle_t; 177 typedef struct libzfs_handle libzfs_handle_t; 178 179 /* 180 * Library initialization 181 */ 182 extern libzfs_handle_t *libzfs_init(void); 183 extern void libzfs_fini(libzfs_handle_t *); 184 185 extern libzfs_handle_t *zpool_get_handle(zpool_handle_t *); 186 extern libzfs_handle_t *zfs_get_handle(zfs_handle_t *); 187 188 extern void libzfs_print_on_error(libzfs_handle_t *, boolean_t); 189 190 extern void zfs_save_arguments(int argc, char **, char *, int); 191 extern int zpool_log_history(libzfs_handle_t *, const char *); 192 193 extern int libzfs_errno(libzfs_handle_t *); 194 extern const char *libzfs_error_action(libzfs_handle_t *); 195 extern const char *libzfs_error_description(libzfs_handle_t *); 196 extern int zfs_standard_error(libzfs_handle_t *, int, const char *); 197 extern void libzfs_mnttab_init(libzfs_handle_t *); 198 extern void libzfs_mnttab_fini(libzfs_handle_t *); 199 extern void libzfs_mnttab_cache(libzfs_handle_t *, boolean_t); 200 extern int libzfs_mnttab_find(libzfs_handle_t *, const char *, 201 struct mnttab *); 202 extern void libzfs_mnttab_add(libzfs_handle_t *, const char *, 203 const char *, const char *); 204 extern void libzfs_mnttab_remove(libzfs_handle_t *, const char *); 205 206 /* 207 * Basic handle functions 208 */ 209 extern zpool_handle_t *zpool_open(libzfs_handle_t *, const char *); 210 extern zpool_handle_t *zpool_open_canfail(libzfs_handle_t *, const char *); 211 extern void zpool_close(zpool_handle_t *); 212 extern const char *zpool_get_name(zpool_handle_t *); 213 extern int zpool_get_state(zpool_handle_t *); 214 extern const char *zpool_state_to_name(vdev_state_t, vdev_aux_t); 215 extern const char *zpool_pool_state_to_name(pool_state_t); 216 extern void zpool_free_handles(libzfs_handle_t *); 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 */ 331 332 /* 333 * Finally, the following indicates a healthy pool. 334 */ 335 ZPOOL_STATUS_OK 336 } zpool_status_t; 337 338 extern zpool_status_t zpool_get_status(zpool_handle_t *, char **); 339 extern zpool_status_t zpool_import_status(nvlist_t *, char **); 340 extern void zpool_dump_ddt(const ddt_stat_t *dds, const ddt_histogram_t *ddh); 341 342 /* 343 * Statistics and configuration functions. 344 */ 345 extern nvlist_t *zpool_get_config(zpool_handle_t *, nvlist_t **); 346 extern nvlist_t *zpool_get_features(zpool_handle_t *); 347 extern int zpool_refresh_stats(zpool_handle_t *, boolean_t *); 348 extern int zpool_get_errlog(zpool_handle_t *, nvlist_t **); 349 350 /* 351 * Import and export functions 352 */ 353 extern int zpool_export(zpool_handle_t *, boolean_t, const char *); 354 extern int zpool_export_force(zpool_handle_t *, const char *); 355 extern int zpool_import(libzfs_handle_t *, nvlist_t *, const char *, 356 char *altroot); 357 extern int zpool_import_props(libzfs_handle_t *, nvlist_t *, const char *, 358 nvlist_t *, int); 359 extern void zpool_print_unsup_feat(nvlist_t *config); 360 361 /* 362 * Search for pools to import 363 */ 364 365 typedef struct importargs { 366 char **path; /* a list of paths to search */ 367 int paths; /* number of paths to search */ 368 char *poolname; /* name of a pool to find */ 369 uint64_t guid; /* guid of a pool to find */ 370 char *cachefile; /* cachefile to use for import */ 371 int can_be_active : 1; /* can the pool be active? */ 372 int unique : 1; /* does 'poolname' already exist? */ 373 int exists : 1; /* set on return if pool already exists */ 374 } importargs_t; 375 376 extern nvlist_t *zpool_search_import(libzfs_handle_t *, importargs_t *); 377 378 /* legacy pool search routines */ 379 extern nvlist_t *zpool_find_import(libzfs_handle_t *, int, char **); 380 extern nvlist_t *zpool_find_import_cached(libzfs_handle_t *, const char *, 381 char *, uint64_t); 382 383 /* 384 * Miscellaneous pool functions 385 */ 386 struct zfs_cmd; 387 388 extern const char *zfs_history_event_names[]; 389 390 extern char *zpool_vdev_name(libzfs_handle_t *, zpool_handle_t *, nvlist_t *, 391 boolean_t verbose); 392 extern int zpool_upgrade(zpool_handle_t *, uint64_t); 393 extern int zpool_get_history(zpool_handle_t *, nvlist_t **); 394 extern int zpool_history_unpack(char *, uint64_t, uint64_t *, 395 nvlist_t ***, uint_t *); 396 extern void zpool_obj_to_path(zpool_handle_t *, uint64_t, uint64_t, char *, 397 size_t len); 398 extern int zfs_ioctl(libzfs_handle_t *, int, struct zfs_cmd *); 399 extern int zpool_get_physpath(zpool_handle_t *, char *, size_t); 400 extern void zpool_explain_recover(libzfs_handle_t *, const char *, int, 401 nvlist_t *); 402 403 /* 404 * Basic handle manipulations. These functions do not create or destroy the 405 * underlying datasets, only the references to them. 406 */ 407 extern zfs_handle_t *zfs_open(libzfs_handle_t *, const char *, int); 408 extern zfs_handle_t *zfs_handle_dup(zfs_handle_t *); 409 extern void zfs_close(zfs_handle_t *); 410 extern zfs_type_t zfs_get_type(const zfs_handle_t *); 411 extern const char *zfs_get_name(const zfs_handle_t *); 412 extern zpool_handle_t *zfs_get_pool_handle(const zfs_handle_t *); 413 extern const char *zfs_get_pool_name(const zfs_handle_t *); 414 415 /* 416 * Property management functions. Some functions are shared with the kernel, 417 * and are found in sys/fs/zfs.h. 418 */ 419 420 /* 421 * zfs dataset property management 422 */ 423 extern const char *zfs_prop_default_string(zfs_prop_t); 424 extern uint64_t zfs_prop_default_numeric(zfs_prop_t); 425 extern const char *zfs_prop_column_name(zfs_prop_t); 426 extern boolean_t zfs_prop_align_right(zfs_prop_t); 427 428 extern nvlist_t *zfs_valid_proplist(libzfs_handle_t *, zfs_type_t, 429 nvlist_t *, uint64_t, zfs_handle_t *, zpool_handle_t *, const char *); 430 431 extern const char *zfs_prop_to_name(zfs_prop_t); 432 extern int zfs_prop_set(zfs_handle_t *, const char *, const char *); 433 extern int zfs_prop_set_list(zfs_handle_t *, nvlist_t *); 434 extern int zfs_prop_get(zfs_handle_t *, zfs_prop_t, char *, size_t, 435 zprop_source_t *, char *, size_t, boolean_t); 436 extern int zfs_prop_get_recvd(zfs_handle_t *, const char *, char *, size_t, 437 boolean_t); 438 extern int zfs_prop_get_numeric(zfs_handle_t *, zfs_prop_t, uint64_t *, 439 zprop_source_t *, char *, size_t); 440 extern int zfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname, 441 uint64_t *propvalue); 442 extern int zfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname, 443 char *propbuf, int proplen, boolean_t literal); 444 extern int zfs_prop_get_written_int(zfs_handle_t *zhp, const char *propname, 445 uint64_t *propvalue); 446 extern int zfs_prop_get_written(zfs_handle_t *zhp, const char *propname, 447 char *propbuf, int proplen, boolean_t literal); 448 extern int zfs_prop_get_feature(zfs_handle_t *zhp, const char *propname, 449 char *buf, size_t len); 450 extern uint64_t zfs_prop_get_int(zfs_handle_t *, zfs_prop_t); 451 extern int zfs_prop_inherit(zfs_handle_t *, const char *, boolean_t); 452 extern const char *zfs_prop_values(zfs_prop_t); 453 extern int zfs_prop_is_string(zfs_prop_t prop); 454 extern nvlist_t *zfs_get_user_props(zfs_handle_t *); 455 extern nvlist_t *zfs_get_recvd_props(zfs_handle_t *); 456 extern nvlist_t *zfs_get_clones_nvl(zfs_handle_t *); 457 458 459 typedef struct zprop_list { 460 int pl_prop; 461 char *pl_user_prop; 462 struct zprop_list *pl_next; 463 boolean_t pl_all; 464 size_t pl_width; 465 size_t pl_recvd_width; 466 boolean_t pl_fixed; 467 } zprop_list_t; 468 469 extern int zfs_expand_proplist(zfs_handle_t *, zprop_list_t **, boolean_t, 470 boolean_t); 471 extern void zfs_prune_proplist(zfs_handle_t *, uint8_t *); 472 473 #define ZFS_MOUNTPOINT_NONE "none" 474 #define ZFS_MOUNTPOINT_LEGACY "legacy" 475 476 #define ZFS_FEATURE_DISABLED "disabled" 477 #define ZFS_FEATURE_ENABLED "enabled" 478 #define ZFS_FEATURE_ACTIVE "active" 479 480 #define ZFS_UNSUPPORTED_INACTIVE "inactive" 481 #define ZFS_UNSUPPORTED_READONLY "readonly" 482 483 /* 484 * zpool property management 485 */ 486 extern int zpool_expand_proplist(zpool_handle_t *, zprop_list_t **); 487 extern int zpool_prop_get_feature(zpool_handle_t *, const char *, char *, 488 size_t); 489 extern const char *zpool_prop_default_string(zpool_prop_t); 490 extern uint64_t zpool_prop_default_numeric(zpool_prop_t); 491 extern const char *zpool_prop_column_name(zpool_prop_t); 492 extern boolean_t zpool_prop_align_right(zpool_prop_t); 493 494 /* 495 * Functions shared by zfs and zpool property management. 496 */ 497 extern int zprop_iter(zprop_func func, void *cb, boolean_t show_all, 498 boolean_t ordered, zfs_type_t type); 499 extern int zprop_get_list(libzfs_handle_t *, char *, zprop_list_t **, 500 zfs_type_t); 501 extern void zprop_free_list(zprop_list_t *); 502 503 #define ZFS_GET_NCOLS 5 504 505 typedef enum { 506 GET_COL_NONE, 507 GET_COL_NAME, 508 GET_COL_PROPERTY, 509 GET_COL_VALUE, 510 GET_COL_RECVD, 511 GET_COL_SOURCE 512 } zfs_get_column_t; 513 514 /* 515 * Functions for printing zfs or zpool properties 516 */ 517 typedef struct zprop_get_cbdata { 518 int cb_sources; 519 zfs_get_column_t cb_columns[ZFS_GET_NCOLS]; 520 int cb_colwidths[ZFS_GET_NCOLS + 1]; 521 boolean_t cb_scripted; 522 boolean_t cb_literal; 523 boolean_t cb_first; 524 zprop_list_t *cb_proplist; 525 zfs_type_t cb_type; 526 } zprop_get_cbdata_t; 527 528 void zprop_print_one_property(const char *, zprop_get_cbdata_t *, 529 const char *, const char *, zprop_source_t, const char *, 530 const char *); 531 532 /* 533 * Iterator functions. 534 */ 535 typedef int (*zfs_iter_f)(zfs_handle_t *, void *); 536 extern int zfs_iter_root(libzfs_handle_t *, zfs_iter_f, void *); 537 extern int zfs_iter_children(zfs_handle_t *, zfs_iter_f, void *); 538 extern int zfs_iter_dependents(zfs_handle_t *, boolean_t, zfs_iter_f, void *); 539 extern int zfs_iter_filesystems(zfs_handle_t *, zfs_iter_f, void *); 540 extern int zfs_iter_snapshots(zfs_handle_t *, boolean_t, zfs_iter_f, void *); 541 extern int zfs_iter_snapshots_sorted(zfs_handle_t *, zfs_iter_f, void *); 542 extern int zfs_iter_snapspec(zfs_handle_t *, const char *, zfs_iter_f, void *); 543 extern int zfs_iter_bookmarks(zfs_handle_t *, zfs_iter_f, void *); 544 545 typedef struct get_all_cb { 546 zfs_handle_t **cb_handles; 547 size_t cb_alloc; 548 size_t cb_used; 549 boolean_t cb_verbose; 550 int (*cb_getone)(zfs_handle_t *, void *); 551 } get_all_cb_t; 552 553 void libzfs_add_handle(get_all_cb_t *, zfs_handle_t *); 554 int libzfs_dataset_cmp(const void *, const void *); 555 556 /* 557 * Functions to create and destroy datasets. 558 */ 559 extern int zfs_create(libzfs_handle_t *, const char *, zfs_type_t, 560 nvlist_t *); 561 extern int zfs_create_ancestors(libzfs_handle_t *, const char *); 562 extern int zfs_destroy(zfs_handle_t *, boolean_t); 563 extern int zfs_destroy_snaps(zfs_handle_t *, char *, boolean_t); 564 extern int zfs_destroy_snaps_nvl(libzfs_handle_t *, nvlist_t *, boolean_t); 565 extern int zfs_clone(zfs_handle_t *, const char *, nvlist_t *); 566 extern int zfs_snapshot(libzfs_handle_t *, const char *, boolean_t, nvlist_t *); 567 extern int zfs_snapshot_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, 568 nvlist_t *props); 569 extern int zfs_rollback(zfs_handle_t *, zfs_handle_t *, boolean_t); 570 extern int zfs_rename(zfs_handle_t *, const char *, boolean_t, boolean_t); 571 572 typedef struct sendflags { 573 /* print informational messages (ie, -v was specified) */ 574 boolean_t verbose; 575 576 /* recursive send (ie, -R) */ 577 boolean_t replicate; 578 579 /* for incrementals, do all intermediate snapshots */ 580 boolean_t doall; 581 582 /* if dataset is a clone, do incremental from its origin */ 583 boolean_t fromorigin; 584 585 /* do deduplication */ 586 boolean_t dedup; 587 588 /* send properties (ie, -p) */ 589 boolean_t props; 590 591 /* do not send (no-op, ie. -n) */ 592 boolean_t dryrun; 593 594 /* parsable verbose output (ie. -P) */ 595 boolean_t parsable; 596 597 /* show progress (ie. -v) */ 598 boolean_t progress; 599 600 /* large blocks (>128K) are permitted */ 601 boolean_t largeblock; 602 603 /* WRITE_EMBEDDED records of type DATA are permitted */ 604 boolean_t embed_data; 605 } sendflags_t; 606 607 typedef boolean_t (snapfilter_cb_t)(zfs_handle_t *, void *); 608 609 extern int zfs_send(zfs_handle_t *, const char *, const char *, 610 sendflags_t *, int, snapfilter_cb_t, void *, nvlist_t **); 611 extern int zfs_send_one(zfs_handle_t *, const char *, int, enum lzc_send_flags); 612 extern int zfs_send_resume(libzfs_handle_t *, sendflags_t *, int outfd, 613 const char *); 614 extern nvlist_t *zfs_send_resume_token_to_nvlist(libzfs_handle_t *hdl, 615 const char *token); 616 617 extern int zfs_promote(zfs_handle_t *); 618 extern int zfs_hold(zfs_handle_t *, const char *, const char *, 619 boolean_t, int); 620 extern int zfs_hold_nvl(zfs_handle_t *, int, nvlist_t *); 621 extern int zfs_release(zfs_handle_t *, const char *, const char *, boolean_t); 622 extern int zfs_get_holds(zfs_handle_t *, nvlist_t **); 623 extern uint64_t zvol_volsize_to_reservation(uint64_t, nvlist_t *); 624 625 typedef int (*zfs_userspace_cb_t)(void *arg, const char *domain, 626 uid_t rid, uint64_t space); 627 628 extern int zfs_userspace(zfs_handle_t *, zfs_userquota_prop_t, 629 zfs_userspace_cb_t, void *); 630 631 extern int zfs_get_fsacl(zfs_handle_t *, nvlist_t **); 632 extern int zfs_set_fsacl(zfs_handle_t *, boolean_t, nvlist_t *); 633 634 typedef struct recvflags { 635 /* print informational messages (ie, -v was specified) */ 636 boolean_t verbose; 637 638 /* the destination is a prefix, not the exact fs (ie, -d) */ 639 boolean_t isprefix; 640 641 /* 642 * Only the tail of the sent snapshot path is appended to the 643 * destination to determine the received snapshot name (ie, -e). 644 */ 645 boolean_t istail; 646 647 /* do not actually do the recv, just check if it would work (ie, -n) */ 648 boolean_t dryrun; 649 650 /* rollback/destroy filesystems as necessary (eg, -F) */ 651 boolean_t force; 652 653 /* set "canmount=off" on all modified filesystems */ 654 boolean_t canmountoff; 655 656 /* 657 * Mark the file systems as "resumable" and do not destroy them if the 658 * receive is interrupted 659 */ 660 boolean_t resumable; 661 662 /* byteswap flag is used internally; callers need not specify */ 663 boolean_t byteswap; 664 665 /* do not mount file systems as they are extracted (private) */ 666 boolean_t nomount; 667 } recvflags_t; 668 669 extern int zfs_receive(libzfs_handle_t *, const char *, nvlist_t *, 670 recvflags_t *, int, avl_tree_t *); 671 672 typedef enum diff_flags { 673 ZFS_DIFF_PARSEABLE = 0x1, 674 ZFS_DIFF_TIMESTAMP = 0x2, 675 ZFS_DIFF_CLASSIFY = 0x4 676 } diff_flags_t; 677 678 extern int zfs_show_diffs(zfs_handle_t *, int, const char *, const char *, 679 int); 680 681 /* 682 * Miscellaneous functions. 683 */ 684 extern const char *zfs_type_to_name(zfs_type_t); 685 extern void zfs_refresh_properties(zfs_handle_t *); 686 extern int zfs_name_valid(const char *, zfs_type_t); 687 extern zfs_handle_t *zfs_path_to_zhandle(libzfs_handle_t *, char *, zfs_type_t); 688 extern boolean_t zfs_dataset_exists(libzfs_handle_t *, const char *, 689 zfs_type_t); 690 extern int zfs_spa_version(zfs_handle_t *, int *); 691 extern boolean_t zfs_bookmark_exists(const char *path); 692 693 /* 694 * Mount support functions. 695 */ 696 extern boolean_t is_mounted(libzfs_handle_t *, const char *special, char **); 697 extern boolean_t zfs_is_mounted(zfs_handle_t *, char **); 698 extern int zfs_mount(zfs_handle_t *, const char *, int); 699 extern int zfs_unmount(zfs_handle_t *, const char *, int); 700 extern int zfs_unmountall(zfs_handle_t *, int); 701 702 /* 703 * Share support functions. 704 */ 705 extern boolean_t zfs_is_shared(zfs_handle_t *); 706 extern int zfs_share(zfs_handle_t *); 707 extern int zfs_unshare(zfs_handle_t *); 708 709 /* 710 * Protocol-specific share support functions. 711 */ 712 extern boolean_t zfs_is_shared_nfs(zfs_handle_t *, char **); 713 extern boolean_t zfs_is_shared_smb(zfs_handle_t *, char **); 714 extern int zfs_share_nfs(zfs_handle_t *); 715 extern int zfs_share_smb(zfs_handle_t *); 716 extern int zfs_shareall(zfs_handle_t *); 717 extern int zfs_unshare_nfs(zfs_handle_t *, const char *); 718 extern int zfs_unshare_smb(zfs_handle_t *, const char *); 719 extern int zfs_unshareall_nfs(zfs_handle_t *); 720 extern int zfs_unshareall_smb(zfs_handle_t *); 721 extern int zfs_unshareall_bypath(zfs_handle_t *, const char *); 722 extern int zfs_unshareall(zfs_handle_t *); 723 extern int zfs_deleg_share_nfs(libzfs_handle_t *, char *, char *, char *, 724 void *, void *, int, zfs_share_op_t); 725 726 /* 727 * When dealing with nvlists, verify() is extremely useful 728 */ 729 #ifdef NDEBUG 730 #define verify(EX) ((void)(EX)) 731 #else 732 #define verify(EX) assert(EX) 733 #endif 734 735 /* 736 * Utility function to convert a number to a human-readable form. 737 */ 738 extern void zfs_nicenum(uint64_t, char *, size_t); 739 extern int zfs_nicestrtonum(libzfs_handle_t *, const char *, uint64_t *); 740 741 /* 742 * Given a device or file, determine if it is part of a pool. 743 */ 744 extern int zpool_in_use(libzfs_handle_t *, int, pool_state_t *, char **, 745 boolean_t *); 746 747 /* 748 * Label manipulation. 749 */ 750 extern int zpool_read_label(int, nvlist_t **); 751 extern int zpool_clear_label(int); 752 753 /* is this zvol valid for use as a dump device? */ 754 extern int zvol_check_dump_config(char *); 755 756 /* 757 * Management interfaces for SMB ACL files 758 */ 759 760 int zfs_smb_acl_add(libzfs_handle_t *, char *, char *, char *); 761 int zfs_smb_acl_remove(libzfs_handle_t *, char *, char *, char *); 762 int zfs_smb_acl_purge(libzfs_handle_t *, char *, char *); 763 int zfs_smb_acl_rename(libzfs_handle_t *, char *, char *, char *, char *); 764 765 /* 766 * Enable and disable datasets within a pool by mounting/unmounting and 767 * sharing/unsharing them. 768 */ 769 extern int zpool_enable_datasets(zpool_handle_t *, const char *, int); 770 extern int zpool_disable_datasets(zpool_handle_t *, boolean_t); 771 772 /* 773 * Mappings between vdev and FRU. 774 */ 775 extern void libzfs_fru_refresh(libzfs_handle_t *); 776 extern const char *libzfs_fru_lookup(libzfs_handle_t *, const char *); 777 extern const char *libzfs_fru_devpath(libzfs_handle_t *, const char *); 778 extern boolean_t libzfs_fru_compare(libzfs_handle_t *, const char *, 779 const char *); 780 extern boolean_t libzfs_fru_notself(libzfs_handle_t *, const char *); 781 extern int zpool_fru_set(zpool_handle_t *, uint64_t, const char *); 782 783 extern int zfs_get_hole_count(const char *, uint64_t *, uint64_t *); 784 785 #ifdef __cplusplus 786 } 787 #endif 788 789 #endif /* _LIBZFS_H */ 790