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 <pawel@dawidek.net>. 25 * All rights reserved. 26 * Copyright (c) 2013 by Delphix. All rights reserved. 27 * Copyright (c) 2012, Joyent, Inc. All rights reserved. 28 * Copyright (c) 2012 Martin Matuska <mm@FreeBSD.org>. All rights reserved. 29 * Copyright (c) 2013 Steven Hartland. All rights reserved. 30 * Copyright 2013 Nexenta Systems, Inc. All rights reserved. 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_MAXNAMELEN MAXNAMELEN 55 #define ZPOOL_MAXNAMELEN MAXNAMELEN 56 #define ZFS_MAXPROPLEN MAXPATHLEN 57 #define ZPOOL_MAXPROPLEN MAXPATHLEN 58 59 /* 60 * libzfs errors 61 */ 62 typedef enum zfs_error { 63 EZFS_SUCCESS = 0, /* no error -- success */ 64 EZFS_NOMEM = 2000, /* out of memory */ 65 EZFS_BADPROP, /* invalid property value */ 66 EZFS_PROPREADONLY, /* cannot set readonly property */ 67 EZFS_PROPTYPE, /* property does not apply to dataset type */ 68 EZFS_PROPNONINHERIT, /* property is not inheritable */ 69 EZFS_PROPSPACE, /* bad quota or reservation */ 70 EZFS_BADTYPE, /* dataset is not of appropriate type */ 71 EZFS_BUSY, /* pool or dataset is busy */ 72 EZFS_EXISTS, /* pool or dataset already exists */ 73 EZFS_NOENT, /* no such pool or dataset */ 74 EZFS_BADSTREAM, /* bad backup stream */ 75 EZFS_DSREADONLY, /* dataset is readonly */ 76 EZFS_VOLTOOBIG, /* volume is too large for 32-bit system */ 77 EZFS_INVALIDNAME, /* invalid dataset name */ 78 EZFS_BADRESTORE, /* unable to restore to destination */ 79 EZFS_BADBACKUP, /* backup failed */ 80 EZFS_BADTARGET, /* bad attach/detach/replace target */ 81 EZFS_NODEVICE, /* no such device in pool */ 82 EZFS_BADDEV, /* invalid device to add */ 83 EZFS_NOREPLICAS, /* no valid replicas */ 84 EZFS_RESILVERING, /* currently resilvering */ 85 EZFS_BADVERSION, /* unsupported version */ 86 EZFS_POOLUNAVAIL, /* pool is currently unavailable */ 87 EZFS_DEVOVERFLOW, /* too many devices in one vdev */ 88 EZFS_BADPATH, /* must be an absolute path */ 89 EZFS_CROSSTARGET, /* rename or clone across pool or dataset */ 90 EZFS_ZONED, /* used improperly in local zone */ 91 EZFS_MOUNTFAILED, /* failed to mount dataset */ 92 EZFS_UMOUNTFAILED, /* failed to unmount dataset */ 93 EZFS_UNSHARENFSFAILED, /* unshare(1M) failed */ 94 EZFS_SHARENFSFAILED, /* share(1M) failed */ 95 EZFS_PERM, /* permission denied */ 96 EZFS_NOSPC, /* out of space */ 97 EZFS_FAULT, /* bad address */ 98 EZFS_IO, /* I/O error */ 99 EZFS_INTR, /* signal received */ 100 EZFS_ISSPARE, /* device is a hot spare */ 101 EZFS_INVALCONFIG, /* invalid vdev configuration */ 102 EZFS_RECURSIVE, /* recursive dependency */ 103 EZFS_NOHISTORY, /* no history object */ 104 EZFS_POOLPROPS, /* couldn't retrieve pool props */ 105 EZFS_POOL_NOTSUP, /* ops not supported for this type of pool */ 106 EZFS_POOL_INVALARG, /* invalid argument for this pool operation */ 107 EZFS_NAMETOOLONG, /* dataset name is too long */ 108 EZFS_OPENFAILED, /* open of device failed */ 109 EZFS_NOCAP, /* couldn't get capacity */ 110 EZFS_LABELFAILED, /* write of label failed */ 111 EZFS_BADWHO, /* invalid permission who */ 112 EZFS_BADPERM, /* invalid permission */ 113 EZFS_BADPERMSET, /* invalid permission set name */ 114 EZFS_NODELEGATION, /* delegated administration is disabled */ 115 EZFS_UNSHARESMBFAILED, /* failed to unshare over smb */ 116 EZFS_SHARESMBFAILED, /* failed to share over smb */ 117 EZFS_BADCACHE, /* bad cache file */ 118 EZFS_ISL2CACHE, /* device is for the level 2 ARC */ 119 EZFS_VDEVNOTSUP, /* unsupported vdev type */ 120 EZFS_NOTSUP, /* ops not supported on this dataset */ 121 EZFS_ACTIVE_SPARE, /* pool has active shared spare devices */ 122 EZFS_UNPLAYED_LOGS, /* log device has unplayed logs */ 123 EZFS_REFTAG_RELE, /* snapshot release: tag not found */ 124 EZFS_REFTAG_HOLD, /* snapshot hold: tag already exists */ 125 EZFS_TAGTOOLONG, /* snapshot hold/rele: tag too long */ 126 EZFS_PIPEFAILED, /* pipe create failed */ 127 EZFS_THREADCREATEFAILED, /* thread create failed */ 128 EZFS_POSTSPLIT_ONLINE, /* onlining a disk after splitting it */ 129 EZFS_SCRUBBING, /* currently scrubbing */ 130 EZFS_NO_SCRUB, /* no active scrub */ 131 EZFS_DIFF, /* general failure of zfs diff */ 132 EZFS_DIFFDATA, /* bad zfs diff data */ 133 EZFS_POOLREADONLY, /* pool is in read-only mode */ 134 EZFS_UNKNOWN 135 } zfs_error_t; 136 137 /* 138 * The following data structures are all part 139 * of the zfs_allow_t data structure which is 140 * used for printing 'allow' permissions. 141 * It is a linked list of zfs_allow_t's which 142 * then contain avl tree's for user/group/sets/... 143 * and each one of the entries in those trees have 144 * avl tree's for the permissions they belong to and 145 * whether they are local,descendent or local+descendent 146 * permissions. The AVL trees are used primarily for 147 * sorting purposes, but also so that we can quickly find 148 * a given user and or permission. 149 */ 150 typedef struct zfs_perm_node { 151 avl_node_t z_node; 152 char z_pname[MAXPATHLEN]; 153 } zfs_perm_node_t; 154 155 typedef struct zfs_allow_node { 156 avl_node_t z_node; 157 char z_key[MAXPATHLEN]; /* name, such as joe */ 158 avl_tree_t z_localdescend; /* local+descendent perms */ 159 avl_tree_t z_local; /* local permissions */ 160 avl_tree_t z_descend; /* descendent permissions */ 161 } zfs_allow_node_t; 162 163 typedef struct zfs_allow { 164 struct zfs_allow *z_next; 165 char z_setpoint[MAXPATHLEN]; 166 avl_tree_t z_sets; 167 avl_tree_t z_crperms; 168 avl_tree_t z_user; 169 avl_tree_t z_group; 170 avl_tree_t z_everyone; 171 } zfs_allow_t; 172 173 /* 174 * Basic handle types 175 */ 176 typedef struct zfs_handle zfs_handle_t; 177 typedef struct zpool_handle zpool_handle_t; 178 typedef struct libzfs_handle libzfs_handle_t; 179 180 /* 181 * Library initialization 182 */ 183 extern libzfs_handle_t *libzfs_init(void); 184 extern void libzfs_fini(libzfs_handle_t *); 185 186 extern libzfs_handle_t *zpool_get_handle(zpool_handle_t *); 187 extern libzfs_handle_t *zfs_get_handle(zfs_handle_t *); 188 189 extern void libzfs_print_on_error(libzfs_handle_t *, boolean_t); 190 191 extern void zfs_save_arguments(int argc, char **, char *, int); 192 extern int zpool_log_history(libzfs_handle_t *, const char *); 193 194 extern int libzfs_errno(libzfs_handle_t *); 195 extern const char *libzfs_error_action(libzfs_handle_t *); 196 extern const char *libzfs_error_description(libzfs_handle_t *); 197 extern int zfs_standard_error(libzfs_handle_t *, int, const char *); 198 extern void libzfs_mnttab_init(libzfs_handle_t *); 199 extern void libzfs_mnttab_fini(libzfs_handle_t *); 200 extern void libzfs_mnttab_cache(libzfs_handle_t *, boolean_t); 201 extern int libzfs_mnttab_find(libzfs_handle_t *, const char *, 202 struct mnttab *); 203 extern void libzfs_mnttab_add(libzfs_handle_t *, const char *, 204 const char *, const char *); 205 extern void libzfs_mnttab_remove(libzfs_handle_t *, const char *); 206 207 /* 208 * Basic handle functions 209 */ 210 extern zpool_handle_t *zpool_open(libzfs_handle_t *, const char *); 211 extern zpool_handle_t *zpool_open_canfail(libzfs_handle_t *, const char *); 212 extern void zpool_close(zpool_handle_t *); 213 extern const char *zpool_get_name(zpool_handle_t *); 214 extern int zpool_get_state(zpool_handle_t *); 215 extern const char *zpool_state_to_name(vdev_state_t, vdev_aux_t); 216 extern const char *zpool_pool_state_to_name(pool_state_t); 217 extern void zpool_free_handles(libzfs_handle_t *); 218 219 /* 220 * Iterate over all active pools in the system. 221 */ 222 typedef int (*zpool_iter_f)(zpool_handle_t *, void *); 223 extern int zpool_iter(libzfs_handle_t *, zpool_iter_f, void *); 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 online */ 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 *); 414 415 /* 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 *, 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_get(zfs_handle_t *, zfs_prop_t, char *, size_t, 434 zprop_source_t *, char *, size_t, boolean_t); 435 extern int zfs_prop_get_recvd(zfs_handle_t *, const char *, char *, size_t, 436 boolean_t); 437 extern int zfs_prop_get_numeric(zfs_handle_t *, zfs_prop_t, uint64_t *, 438 zprop_source_t *, char *, size_t); 439 extern int zfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname, 440 uint64_t *propvalue); 441 extern int zfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname, 442 char *propbuf, int proplen, boolean_t literal); 443 extern int zfs_prop_get_written_int(zfs_handle_t *zhp, const char *propname, 444 uint64_t *propvalue); 445 extern int zfs_prop_get_written(zfs_handle_t *zhp, const char *propname, 446 char *propbuf, int proplen, boolean_t literal); 447 extern int zfs_prop_get_feature(zfs_handle_t *zhp, const char *propname, 448 char *buf, size_t len); 449 extern uint64_t zfs_prop_get_int(zfs_handle_t *, zfs_prop_t); 450 extern int zfs_prop_inherit(zfs_handle_t *, const char *, boolean_t); 451 extern const char *zfs_prop_values(zfs_prop_t); 452 extern int zfs_prop_is_string(zfs_prop_t prop); 453 extern nvlist_t *zfs_get_user_props(zfs_handle_t *); 454 extern nvlist_t *zfs_get_recvd_props(zfs_handle_t *); 455 extern nvlist_t *zfs_get_clones_nvl(zfs_handle_t *); 456 457 458 typedef struct zprop_list { 459 int pl_prop; 460 char *pl_user_prop; 461 struct zprop_list *pl_next; 462 boolean_t pl_all; 463 size_t pl_width; 464 size_t pl_recvd_width; 465 boolean_t pl_fixed; 466 } zprop_list_t; 467 468 extern int zfs_expand_proplist(zfs_handle_t *, zprop_list_t **, boolean_t, 469 boolean_t); 470 extern void zfs_prune_proplist(zfs_handle_t *, uint8_t *); 471 472 #define ZFS_MOUNTPOINT_NONE "none" 473 #define ZFS_MOUNTPOINT_LEGACY "legacy" 474 475 #define ZFS_FEATURE_DISABLED "disabled" 476 #define ZFS_FEATURE_ENABLED "enabled" 477 #define ZFS_FEATURE_ACTIVE "active" 478 479 #define ZFS_UNSUPPORTED_INACTIVE "inactive" 480 #define ZFS_UNSUPPORTED_READONLY "readonly" 481 482 /* 483 * zpool property management 484 */ 485 extern int zpool_expand_proplist(zpool_handle_t *, zprop_list_t **); 486 extern int zpool_prop_get_feature(zpool_handle_t *, const char *, char *, 487 size_t); 488 extern const char *zpool_prop_default_string(zpool_prop_t); 489 extern uint64_t zpool_prop_default_numeric(zpool_prop_t); 490 extern const char *zpool_prop_column_name(zpool_prop_t); 491 extern boolean_t zpool_prop_align_right(zpool_prop_t); 492 493 /* 494 * Functions shared by zfs and zpool property management. 495 */ 496 extern int zprop_iter(zprop_func func, void *cb, boolean_t show_all, 497 boolean_t ordered, zfs_type_t type); 498 extern int zprop_get_list(libzfs_handle_t *, char *, zprop_list_t **, 499 zfs_type_t); 500 extern void zprop_free_list(zprop_list_t *); 501 502 #define ZFS_GET_NCOLS 5 503 504 typedef enum { 505 GET_COL_NONE, 506 GET_COL_NAME, 507 GET_COL_PROPERTY, 508 GET_COL_VALUE, 509 GET_COL_RECVD, 510 GET_COL_SOURCE 511 } zfs_get_column_t; 512 513 /* 514 * Functions for printing zfs or zpool properties 515 */ 516 typedef struct zprop_get_cbdata { 517 int cb_sources; 518 zfs_get_column_t cb_columns[ZFS_GET_NCOLS]; 519 int cb_colwidths[ZFS_GET_NCOLS + 1]; 520 boolean_t cb_scripted; 521 boolean_t cb_literal; 522 boolean_t cb_first; 523 zprop_list_t *cb_proplist; 524 zfs_type_t cb_type; 525 } zprop_get_cbdata_t; 526 527 void zprop_print_one_property(const char *, zprop_get_cbdata_t *, 528 const char *, const char *, zprop_source_t, const char *, 529 const char *); 530 531 /* 532 * Iterator functions. 533 */ 534 typedef int (*zfs_iter_f)(zfs_handle_t *, void *); 535 extern int zfs_iter_root(libzfs_handle_t *, zfs_iter_f, void *); 536 extern int zfs_iter_children(zfs_handle_t *, zfs_iter_f, void *); 537 extern int zfs_iter_dependents(zfs_handle_t *, boolean_t, zfs_iter_f, void *); 538 extern int zfs_iter_filesystems(zfs_handle_t *, zfs_iter_f, void *); 539 extern int zfs_iter_snapshots(zfs_handle_t *, boolean_t, zfs_iter_f, void *); 540 extern int zfs_iter_snapshots_sorted(zfs_handle_t *, zfs_iter_f, void *); 541 extern int zfs_iter_snapspec(zfs_handle_t *, const char *, zfs_iter_f, void *); 542 extern int zfs_iter_bookmarks(zfs_handle_t *, zfs_iter_f, void *); 543 544 typedef struct get_all_cb { 545 zfs_handle_t **cb_handles; 546 size_t cb_alloc; 547 size_t cb_used; 548 boolean_t cb_verbose; 549 int (*cb_getone)(zfs_handle_t *, void *); 550 } get_all_cb_t; 551 552 void libzfs_add_handle(get_all_cb_t *, zfs_handle_t *); 553 int libzfs_dataset_cmp(const void *, const void *); 554 555 /* 556 * Functions to create and destroy datasets. 557 */ 558 extern int zfs_create(libzfs_handle_t *, const char *, zfs_type_t, 559 nvlist_t *); 560 extern int zfs_create_ancestors(libzfs_handle_t *, const char *); 561 extern int zfs_destroy(zfs_handle_t *, boolean_t); 562 extern int zfs_destroy_snaps(zfs_handle_t *, char *, boolean_t); 563 extern int zfs_destroy_snaps_nvl(libzfs_handle_t *, nvlist_t *, boolean_t); 564 extern int zfs_clone(zfs_handle_t *, const char *, nvlist_t *); 565 extern int zfs_snapshot(libzfs_handle_t *, const char *, boolean_t, nvlist_t *); 566 extern int zfs_snapshot_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, 567 nvlist_t *props); 568 extern int zfs_rollback(zfs_handle_t *, zfs_handle_t *, boolean_t); 569 570 typedef struct renameflags { 571 /* recursive rename */ 572 int recurse : 1; 573 574 /* don't unmount file systems */ 575 int nounmount : 1; 576 577 /* force unmount file systems */ 578 int forceunmount : 1; 579 } renameflags_t; 580 581 extern int zfs_rename(zfs_handle_t *, const char *, const char *, 582 renameflags_t flags); 583 584 typedef struct sendflags { 585 /* print informational messages (ie, -v was specified) */ 586 boolean_t verbose; 587 588 /* recursive send (ie, -R) */ 589 boolean_t replicate; 590 591 /* for incrementals, do all intermediate snapshots */ 592 boolean_t doall; 593 594 /* if dataset is a clone, do incremental from its origin */ 595 boolean_t fromorigin; 596 597 /* do deduplication */ 598 boolean_t dedup; 599 600 /* send properties (ie, -p) */ 601 boolean_t props; 602 603 /* do not send (no-op, ie. -n) */ 604 boolean_t dryrun; 605 606 /* parsable verbose output (ie. -P) */ 607 boolean_t parsable; 608 609 /* show progress (ie. -v) */ 610 boolean_t progress; 611 612 /* large blocks (>128K) are permitted */ 613 boolean_t largeblock; 614 615 /* WRITE_EMBEDDED records of type DATA are permitted */ 616 boolean_t embed_data; 617 618 /* show progress as process title(ie. -V) */ 619 boolean_t progressastitle; 620 } sendflags_t; 621 622 typedef boolean_t (snapfilter_cb_t)(zfs_handle_t *, void *); 623 624 extern int zfs_send(zfs_handle_t *, const char *, const char *, 625 sendflags_t *, int, snapfilter_cb_t, void *, nvlist_t **); 626 extern int zfs_send_one(zfs_handle_t *, const char *, int, enum lzc_send_flags); 627 628 extern int zfs_promote(zfs_handle_t *); 629 extern int zfs_hold(zfs_handle_t *, const char *, const char *, 630 boolean_t, int); 631 extern int zfs_hold_nvl(zfs_handle_t *, int, nvlist_t *); 632 extern int zfs_release(zfs_handle_t *, const char *, const char *, boolean_t); 633 extern int zfs_get_holds(zfs_handle_t *, nvlist_t **); 634 extern uint64_t zvol_volsize_to_reservation(uint64_t, nvlist_t *); 635 636 typedef int (*zfs_userspace_cb_t)(void *arg, const char *domain, 637 uid_t rid, uint64_t space); 638 639 extern int zfs_userspace(zfs_handle_t *, zfs_userquota_prop_t, 640 zfs_userspace_cb_t, void *); 641 642 extern int zfs_get_fsacl(zfs_handle_t *, nvlist_t **); 643 extern int zfs_set_fsacl(zfs_handle_t *, boolean_t, nvlist_t *); 644 645 typedef struct recvflags { 646 /* print informational messages (ie, -v was specified) */ 647 boolean_t verbose; 648 649 /* the destination is a prefix, not the exact fs (ie, -d) */ 650 boolean_t isprefix; 651 652 /* 653 * Only the tail of the sent snapshot path is appended to the 654 * destination to determine the received snapshot name (ie, -e). 655 */ 656 boolean_t istail; 657 658 /* do not actually do the recv, just check if it would work (ie, -n) */ 659 boolean_t dryrun; 660 661 /* rollback/destroy filesystems as necessary (eg, -F) */ 662 boolean_t force; 663 664 /* set "canmount=off" on all modified filesystems */ 665 boolean_t canmountoff; 666 667 /* byteswap flag is used internally; callers need not specify */ 668 boolean_t byteswap; 669 670 /* do not mount file systems as they are extracted (private) */ 671 boolean_t nomount; 672 } recvflags_t; 673 674 extern int zfs_receive(libzfs_handle_t *, const char *, recvflags_t *, 675 int, avl_tree_t *); 676 677 typedef enum diff_flags { 678 ZFS_DIFF_PARSEABLE = 0x1, 679 ZFS_DIFF_TIMESTAMP = 0x2, 680 ZFS_DIFF_CLASSIFY = 0x4 681 } diff_flags_t; 682 683 extern int zfs_show_diffs(zfs_handle_t *, int, const char *, const char *, 684 int); 685 686 /* 687 * Miscellaneous functions. 688 */ 689 extern const char *zfs_type_to_name(zfs_type_t); 690 extern void zfs_refresh_properties(zfs_handle_t *); 691 extern int zfs_name_valid(const char *, zfs_type_t); 692 extern zfs_handle_t *zfs_path_to_zhandle(libzfs_handle_t *, char *, zfs_type_t); 693 extern boolean_t zfs_dataset_exists(libzfs_handle_t *, const char *, 694 zfs_type_t); 695 extern int zfs_spa_version(zfs_handle_t *, int *); 696 extern boolean_t zfs_bookmark_exists(const char *path); 697 698 /* 699 * Mount support functions. 700 */ 701 extern boolean_t is_mounted(libzfs_handle_t *, const char *special, char **); 702 extern boolean_t zfs_is_mounted(zfs_handle_t *, char **); 703 extern int zfs_mount(zfs_handle_t *, const char *, int); 704 extern int zfs_unmount(zfs_handle_t *, const char *, int); 705 extern int zfs_unmountall(zfs_handle_t *, int); 706 707 /* 708 * Share support functions. 709 */ 710 extern boolean_t zfs_is_shared(zfs_handle_t *); 711 extern int zfs_share(zfs_handle_t *); 712 extern int zfs_unshare(zfs_handle_t *); 713 714 /* 715 * Protocol-specific share support functions. 716 */ 717 extern boolean_t zfs_is_shared_nfs(zfs_handle_t *, char **); 718 extern boolean_t zfs_is_shared_smb(zfs_handle_t *, char **); 719 extern int zfs_share_nfs(zfs_handle_t *); 720 extern int zfs_share_smb(zfs_handle_t *); 721 extern int zfs_shareall(zfs_handle_t *); 722 extern int zfs_unshare_nfs(zfs_handle_t *, const char *); 723 extern int zfs_unshare_smb(zfs_handle_t *, const char *); 724 extern int zfs_unshareall_nfs(zfs_handle_t *); 725 extern int zfs_unshareall_smb(zfs_handle_t *); 726 extern int zfs_unshareall_bypath(zfs_handle_t *, const char *); 727 extern int zfs_unshareall(zfs_handle_t *); 728 extern int zfs_deleg_share_nfs(libzfs_handle_t *, char *, char *, char *, 729 void *, void *, int, zfs_share_op_t); 730 731 /* 732 * FreeBSD-specific jail support function. 733 */ 734 extern int zfs_jail(zfs_handle_t *, int, int); 735 736 /* 737 * When dealing with nvlists, verify() is extremely useful 738 */ 739 #ifndef verify 740 #ifdef NDEBUG 741 #define verify(EX) ((void)(EX)) 742 #else 743 #define verify(EX) assert(EX) 744 #endif 745 #endif 746 747 /* 748 * Utility function to convert a number to a human-readable form. 749 */ 750 extern void zfs_nicenum(uint64_t, char *, size_t); 751 extern int zfs_nicestrtonum(libzfs_handle_t *, const char *, uint64_t *); 752 753 /* 754 * Given a device or file, determine if it is part of a pool. 755 */ 756 extern int zpool_in_use(libzfs_handle_t *, int, pool_state_t *, char **, 757 boolean_t *); 758 759 /* 760 * Label manipulation. 761 */ 762 extern int zpool_read_label(int, nvlist_t **); 763 extern int zpool_clear_label(int); 764 765 /* is this zvol valid for use as a dump device? */ 766 extern int zvol_check_dump_config(char *); 767 768 /* 769 * Management interfaces for SMB ACL files 770 */ 771 772 int zfs_smb_acl_add(libzfs_handle_t *, char *, char *, char *); 773 int zfs_smb_acl_remove(libzfs_handle_t *, char *, char *, char *); 774 int zfs_smb_acl_purge(libzfs_handle_t *, char *, char *); 775 int zfs_smb_acl_rename(libzfs_handle_t *, char *, char *, char *, char *); 776 777 /* 778 * Enable and disable datasets within a pool by mounting/unmounting and 779 * sharing/unsharing them. 780 */ 781 extern int zpool_enable_datasets(zpool_handle_t *, const char *, int); 782 extern int zpool_disable_datasets(zpool_handle_t *, boolean_t); 783 784 /* 785 * Mappings between vdev and FRU. 786 */ 787 extern void libzfs_fru_refresh(libzfs_handle_t *); 788 extern const char *libzfs_fru_lookup(libzfs_handle_t *, const char *); 789 extern const char *libzfs_fru_devpath(libzfs_handle_t *, const char *); 790 extern boolean_t libzfs_fru_compare(libzfs_handle_t *, const char *, 791 const char *); 792 extern boolean_t libzfs_fru_notself(libzfs_handle_t *, const char *); 793 extern int zpool_fru_set(zpool_handle_t *, uint64_t, const char *); 794 795 #ifndef sun 796 extern int zmount(const char *, const char *, int, char *, char *, int, char *, 797 int); 798 #endif /* !sun */ 799 800 #ifdef __cplusplus 801 } 802 #endif 803 804 #endif /* _LIBZFS_H */ 805