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, 2015 by Delphix. All rights reserved. 25 * Copyright (c) 2012, Joyent, Inc. All rights reserved. 26 * Copyright (c) 2013 Steven Hartland. All rights reserved. 27 * Copyright 2013 Nexenta Systems, Inc. All rights reserved. 28 */ 29 30 #ifndef _LIBZFS_H 31 #define _LIBZFS_H 32 33 #include <assert.h> 34 #include <libnvpair.h> 35 #include <sys/mnttab.h> 36 #include <sys/param.h> 37 #include <sys/types.h> 38 #include <sys/varargs.h> 39 #include <sys/fs/zfs.h> 40 #include <sys/avl.h> 41 #include <ucred.h> 42 #include <libzfs_core.h> 43 44 #ifdef __cplusplus 45 extern "C" { 46 #endif 47 48 /* 49 * Miscellaneous ZFS constants 50 */ 51 #define ZFS_MAXNAMELEN MAXNAMELEN 52 #define ZPOOL_MAXNAMELEN MAXNAMELEN 53 #define ZFS_MAXPROPLEN MAXPATHLEN 54 #define ZPOOL_MAXPROPLEN MAXPATHLEN 55 56 /* 57 * libzfs errors 58 */ 59 typedef enum zfs_error { 60 EZFS_SUCCESS = 0, /* no error -- success */ 61 EZFS_NOMEM = 2000, /* out of memory */ 62 EZFS_BADPROP, /* invalid property value */ 63 EZFS_PROPREADONLY, /* cannot set readonly property */ 64 EZFS_PROPTYPE, /* property does not apply to dataset type */ 65 EZFS_PROPNONINHERIT, /* property is not inheritable */ 66 EZFS_PROPSPACE, /* bad quota or reservation */ 67 EZFS_BADTYPE, /* dataset is not of appropriate type */ 68 EZFS_BUSY, /* pool or dataset is busy */ 69 EZFS_EXISTS, /* pool or dataset already exists */ 70 EZFS_NOENT, /* no such pool or dataset */ 71 EZFS_BADSTREAM, /* bad backup stream */ 72 EZFS_DSREADONLY, /* dataset is readonly */ 73 EZFS_VOLTOOBIG, /* volume is too large for 32-bit system */ 74 EZFS_INVALIDNAME, /* invalid dataset name */ 75 EZFS_BADRESTORE, /* unable to restore to destination */ 76 EZFS_BADBACKUP, /* backup failed */ 77 EZFS_BADTARGET, /* bad attach/detach/replace target */ 78 EZFS_NODEVICE, /* no such device in pool */ 79 EZFS_BADDEV, /* invalid device to add */ 80 EZFS_NOREPLICAS, /* no valid replicas */ 81 EZFS_RESILVERING, /* currently resilvering */ 82 EZFS_BADVERSION, /* unsupported version */ 83 EZFS_POOLUNAVAIL, /* pool is currently unavailable */ 84 EZFS_DEVOVERFLOW, /* too many devices in one vdev */ 85 EZFS_BADPATH, /* must be an absolute path */ 86 EZFS_CROSSTARGET, /* rename or clone across pool or dataset */ 87 EZFS_ZONED, /* used improperly in local zone */ 88 EZFS_MOUNTFAILED, /* failed to mount dataset */ 89 EZFS_UMOUNTFAILED, /* failed to unmount dataset */ 90 EZFS_UNSHARENFSFAILED, /* unshare(1M) failed */ 91 EZFS_SHARENFSFAILED, /* share(1M) failed */ 92 EZFS_PERM, /* permission denied */ 93 EZFS_NOSPC, /* out of space */ 94 EZFS_FAULT, /* bad address */ 95 EZFS_IO, /* I/O error */ 96 EZFS_INTR, /* signal received */ 97 EZFS_ISSPARE, /* device is a hot spare */ 98 EZFS_INVALCONFIG, /* invalid vdev configuration */ 99 EZFS_RECURSIVE, /* recursive dependency */ 100 EZFS_NOHISTORY, /* no history object */ 101 EZFS_POOLPROPS, /* couldn't retrieve pool props */ 102 EZFS_POOL_NOTSUP, /* ops not supported for this type of pool */ 103 EZFS_POOL_INVALARG, /* invalid argument for this pool operation */ 104 EZFS_NAMETOOLONG, /* dataset name is too long */ 105 EZFS_OPENFAILED, /* open of device failed */ 106 EZFS_NOCAP, /* couldn't get capacity */ 107 EZFS_LABELFAILED, /* write of label failed */ 108 EZFS_BADWHO, /* invalid permission who */ 109 EZFS_BADPERM, /* invalid permission */ 110 EZFS_BADPERMSET, /* invalid permission set name */ 111 EZFS_NODELEGATION, /* delegated administration is disabled */ 112 EZFS_UNSHARESMBFAILED, /* failed to unshare over smb */ 113 EZFS_SHARESMBFAILED, /* failed to share over smb */ 114 EZFS_BADCACHE, /* bad cache file */ 115 EZFS_ISL2CACHE, /* device is for the level 2 ARC */ 116 EZFS_VDEVNOTSUP, /* unsupported vdev type */ 117 EZFS_NOTSUP, /* ops not supported on this dataset */ 118 EZFS_ACTIVE_SPARE, /* pool has active shared spare devices */ 119 EZFS_UNPLAYED_LOGS, /* log device has unplayed logs */ 120 EZFS_REFTAG_RELE, /* snapshot release: tag not found */ 121 EZFS_REFTAG_HOLD, /* snapshot hold: tag already exists */ 122 EZFS_TAGTOOLONG, /* snapshot hold/rele: tag too long */ 123 EZFS_PIPEFAILED, /* pipe create failed */ 124 EZFS_THREADCREATEFAILED, /* thread create failed */ 125 EZFS_POSTSPLIT_ONLINE, /* onlining a disk after splitting it */ 126 EZFS_SCRUBBING, /* currently scrubbing */ 127 EZFS_NO_SCRUB, /* no active scrub */ 128 EZFS_DIFF, /* general failure of zfs diff */ 129 EZFS_DIFFDATA, /* bad zfs diff data */ 130 EZFS_POOLREADONLY, /* pool is in read-only mode */ 131 EZFS_UNKNOWN 132 } zfs_error_t; 133 134 /* 135 * The following data structures are all part 136 * of the zfs_allow_t data structure which is 137 * used for printing 'allow' permissions. 138 * It is a linked list of zfs_allow_t's which 139 * then contain avl tree's for user/group/sets/... 140 * and each one of the entries in those trees have 141 * avl tree's for the permissions they belong to and 142 * whether they are local,descendent or local+descendent 143 * permissions. The AVL trees are used primarily for 144 * sorting purposes, but also so that we can quickly find 145 * a given user and or permission. 146 */ 147 typedef struct zfs_perm_node { 148 avl_node_t z_node; 149 char z_pname[MAXPATHLEN]; 150 } zfs_perm_node_t; 151 152 typedef struct zfs_allow_node { 153 avl_node_t z_node; 154 char z_key[MAXPATHLEN]; /* name, such as joe */ 155 avl_tree_t z_localdescend; /* local+descendent perms */ 156 avl_tree_t z_local; /* local permissions */ 157 avl_tree_t z_descend; /* descendent permissions */ 158 } zfs_allow_node_t; 159 160 typedef struct zfs_allow { 161 struct zfs_allow *z_next; 162 char z_setpoint[MAXPATHLEN]; 163 avl_tree_t z_sets; 164 avl_tree_t z_crperms; 165 avl_tree_t z_user; 166 avl_tree_t z_group; 167 avl_tree_t z_everyone; 168 } zfs_allow_t; 169 170 /* 171 * Basic handle types 172 */ 173 typedef struct zfs_handle zfs_handle_t; 174 typedef struct zpool_handle zpool_handle_t; 175 typedef struct libzfs_handle libzfs_handle_t; 176 177 /* 178 * Library initialization 179 */ 180 extern libzfs_handle_t *libzfs_init(void); 181 extern void libzfs_fini(libzfs_handle_t *); 182 183 extern libzfs_handle_t *zpool_get_handle(zpool_handle_t *); 184 extern libzfs_handle_t *zfs_get_handle(zfs_handle_t *); 185 186 extern void libzfs_print_on_error(libzfs_handle_t *, boolean_t); 187 188 extern void zfs_save_arguments(int argc, char **, char *, int); 189 extern int zpool_log_history(libzfs_handle_t *, const char *); 190 191 extern int libzfs_errno(libzfs_handle_t *); 192 extern const char *libzfs_error_action(libzfs_handle_t *); 193 extern const char *libzfs_error_description(libzfs_handle_t *); 194 extern int zfs_standard_error(libzfs_handle_t *, int, const char *); 195 extern void libzfs_mnttab_init(libzfs_handle_t *); 196 extern void libzfs_mnttab_fini(libzfs_handle_t *); 197 extern void libzfs_mnttab_cache(libzfs_handle_t *, boolean_t); 198 extern int libzfs_mnttab_find(libzfs_handle_t *, const char *, 199 struct mnttab *); 200 extern void libzfs_mnttab_add(libzfs_handle_t *, const char *, 201 const char *, const char *); 202 extern void libzfs_mnttab_remove(libzfs_handle_t *, const char *); 203 204 /* 205 * Basic handle functions 206 */ 207 extern zpool_handle_t *zpool_open(libzfs_handle_t *, const char *); 208 extern zpool_handle_t *zpool_open_canfail(libzfs_handle_t *, const char *); 209 extern void zpool_close(zpool_handle_t *); 210 extern const char *zpool_get_name(zpool_handle_t *); 211 extern int zpool_get_state(zpool_handle_t *); 212 extern char *zpool_state_to_name(vdev_state_t, vdev_aux_t); 213 extern void zpool_free_handles(libzfs_handle_t *); 214 215 /* 216 * Iterate over all active pools in the system. 217 */ 218 typedef int (*zpool_iter_f)(zpool_handle_t *, void *); 219 extern int zpool_iter(libzfs_handle_t *, zpool_iter_f, void *); 220 221 /* 222 * Functions to create and destroy pools 223 */ 224 extern int zpool_create(libzfs_handle_t *, const char *, nvlist_t *, 225 nvlist_t *, nvlist_t *); 226 extern int zpool_destroy(zpool_handle_t *, const char *); 227 extern int zpool_add(zpool_handle_t *, nvlist_t *); 228 229 typedef struct splitflags { 230 /* do not split, but return the config that would be split off */ 231 int dryrun : 1; 232 233 /* after splitting, import the pool */ 234 int import : 1; 235 } splitflags_t; 236 237 /* 238 * Functions to manipulate pool and vdev state 239 */ 240 extern int zpool_scan(zpool_handle_t *, pool_scan_func_t); 241 extern int zpool_clear(zpool_handle_t *, const char *, nvlist_t *); 242 extern int zpool_reguid(zpool_handle_t *); 243 extern int zpool_reopen(zpool_handle_t *); 244 245 extern int zpool_vdev_online(zpool_handle_t *, const char *, int, 246 vdev_state_t *); 247 extern int zpool_vdev_offline(zpool_handle_t *, const char *, boolean_t); 248 extern int zpool_vdev_attach(zpool_handle_t *, const char *, 249 const char *, nvlist_t *, int); 250 extern int zpool_vdev_detach(zpool_handle_t *, const char *); 251 extern int zpool_vdev_remove(zpool_handle_t *, const char *); 252 extern int zpool_vdev_split(zpool_handle_t *, char *, nvlist_t **, nvlist_t *, 253 splitflags_t); 254 255 extern int zpool_vdev_fault(zpool_handle_t *, uint64_t, vdev_aux_t); 256 extern int zpool_vdev_degrade(zpool_handle_t *, uint64_t, vdev_aux_t); 257 extern int zpool_vdev_clear(zpool_handle_t *, uint64_t); 258 259 extern nvlist_t *zpool_find_vdev(zpool_handle_t *, const char *, boolean_t *, 260 boolean_t *, boolean_t *); 261 extern nvlist_t *zpool_find_vdev_by_physpath(zpool_handle_t *, const char *, 262 boolean_t *, boolean_t *, boolean_t *); 263 extern int zpool_label_disk(libzfs_handle_t *, zpool_handle_t *, char *); 264 265 /* 266 * Functions to manage pool properties 267 */ 268 extern int zpool_set_prop(zpool_handle_t *, const char *, const char *); 269 extern int zpool_get_prop(zpool_handle_t *, zpool_prop_t, char *, 270 size_t proplen, zprop_source_t *, boolean_t); 271 extern uint64_t zpool_get_prop_int(zpool_handle_t *, zpool_prop_t, 272 zprop_source_t *); 273 274 extern const char *zpool_prop_to_name(zpool_prop_t); 275 extern const char *zpool_prop_values(zpool_prop_t); 276 277 /* 278 * Pool health statistics. 279 */ 280 typedef enum { 281 /* 282 * The following correspond to faults as defined in the (fault.fs.zfs.*) 283 * event namespace. Each is associated with a corresponding message ID. 284 */ 285 ZPOOL_STATUS_CORRUPT_CACHE, /* corrupt /kernel/drv/zpool.cache */ 286 ZPOOL_STATUS_MISSING_DEV_R, /* missing device with replicas */ 287 ZPOOL_STATUS_MISSING_DEV_NR, /* missing device with no replicas */ 288 ZPOOL_STATUS_CORRUPT_LABEL_R, /* bad device label with replicas */ 289 ZPOOL_STATUS_CORRUPT_LABEL_NR, /* bad device label with no replicas */ 290 ZPOOL_STATUS_BAD_GUID_SUM, /* sum of device guids didn't match */ 291 ZPOOL_STATUS_CORRUPT_POOL, /* pool metadata is corrupted */ 292 ZPOOL_STATUS_CORRUPT_DATA, /* data errors in user (meta)data */ 293 ZPOOL_STATUS_FAILING_DEV, /* device experiencing errors */ 294 ZPOOL_STATUS_VERSION_NEWER, /* newer on-disk version */ 295 ZPOOL_STATUS_HOSTID_MISMATCH, /* last accessed by another system */ 296 ZPOOL_STATUS_IO_FAILURE_WAIT, /* failed I/O, failmode 'wait' */ 297 ZPOOL_STATUS_IO_FAILURE_CONTINUE, /* failed I/O, failmode 'continue' */ 298 ZPOOL_STATUS_BAD_LOG, /* cannot read log chain(s) */ 299 300 /* 301 * If the pool has unsupported features but can still be opened in 302 * read-only mode, its status is ZPOOL_STATUS_UNSUP_FEAT_WRITE. If the 303 * pool has unsupported features but cannot be opened at all, its 304 * status is ZPOOL_STATUS_UNSUP_FEAT_READ. 305 */ 306 ZPOOL_STATUS_UNSUP_FEAT_READ, /* unsupported features for read */ 307 ZPOOL_STATUS_UNSUP_FEAT_WRITE, /* unsupported features for write */ 308 309 /* 310 * These faults have no corresponding message ID. At the time we are 311 * checking the status, the original reason for the FMA fault (I/O or 312 * checksum errors) has been lost. 313 */ 314 ZPOOL_STATUS_FAULTED_DEV_R, /* faulted device with replicas */ 315 ZPOOL_STATUS_FAULTED_DEV_NR, /* faulted device with no replicas */ 316 317 /* 318 * The following are not faults per se, but still an error possibly 319 * requiring administrative attention. There is no corresponding 320 * message ID. 321 */ 322 ZPOOL_STATUS_VERSION_OLDER, /* older legacy on-disk version */ 323 ZPOOL_STATUS_FEAT_DISABLED, /* supported features are disabled */ 324 ZPOOL_STATUS_RESILVERING, /* device being resilvered */ 325 ZPOOL_STATUS_OFFLINE_DEV, /* device online */ 326 ZPOOL_STATUS_REMOVED_DEV, /* removed device */ 327 328 /* 329 * Finally, the following indicates a healthy pool. 330 */ 331 ZPOOL_STATUS_OK 332 } zpool_status_t; 333 334 extern zpool_status_t zpool_get_status(zpool_handle_t *, char **); 335 extern zpool_status_t zpool_import_status(nvlist_t *, char **); 336 extern void zpool_dump_ddt(const ddt_stat_t *dds, const ddt_histogram_t *ddh); 337 338 /* 339 * Statistics and configuration functions. 340 */ 341 extern nvlist_t *zpool_get_config(zpool_handle_t *, nvlist_t **); 342 extern nvlist_t *zpool_get_features(zpool_handle_t *); 343 extern int zpool_refresh_stats(zpool_handle_t *, boolean_t *); 344 extern int zpool_get_errlog(zpool_handle_t *, nvlist_t **); 345 346 /* 347 * Import and export functions 348 */ 349 extern int zpool_export(zpool_handle_t *, boolean_t, const char *); 350 extern int zpool_export_force(zpool_handle_t *, const char *); 351 extern int zpool_import(libzfs_handle_t *, nvlist_t *, const char *, 352 char *altroot); 353 extern int zpool_import_props(libzfs_handle_t *, nvlist_t *, const char *, 354 nvlist_t *, int); 355 extern void zpool_print_unsup_feat(nvlist_t *config); 356 357 /* 358 * Search for pools to import 359 */ 360 361 typedef struct importargs { 362 char **path; /* a list of paths to search */ 363 int paths; /* number of paths to search */ 364 char *poolname; /* name of a pool to find */ 365 uint64_t guid; /* guid of a pool to find */ 366 char *cachefile; /* cachefile to use for import */ 367 int can_be_active : 1; /* can the pool be active? */ 368 int unique : 1; /* does 'poolname' already exist? */ 369 int exists : 1; /* set on return if pool already exists */ 370 } importargs_t; 371 372 extern nvlist_t *zpool_search_import(libzfs_handle_t *, importargs_t *); 373 374 /* legacy pool search routines */ 375 extern nvlist_t *zpool_find_import(libzfs_handle_t *, int, char **); 376 extern nvlist_t *zpool_find_import_cached(libzfs_handle_t *, const char *, 377 char *, uint64_t); 378 379 /* 380 * Miscellaneous pool functions 381 */ 382 struct zfs_cmd; 383 384 extern const char *zfs_history_event_names[]; 385 386 extern char *zpool_vdev_name(libzfs_handle_t *, zpool_handle_t *, nvlist_t *, 387 boolean_t verbose); 388 extern int zpool_upgrade(zpool_handle_t *, uint64_t); 389 extern int zpool_get_history(zpool_handle_t *, nvlist_t **); 390 extern int zpool_history_unpack(char *, uint64_t, uint64_t *, 391 nvlist_t ***, uint_t *); 392 extern void zpool_obj_to_path(zpool_handle_t *, uint64_t, uint64_t, char *, 393 size_t len); 394 extern int zfs_ioctl(libzfs_handle_t *, int, struct zfs_cmd *); 395 extern int zpool_get_physpath(zpool_handle_t *, char *, size_t); 396 extern void zpool_explain_recover(libzfs_handle_t *, const char *, int, 397 nvlist_t *); 398 399 /* 400 * Basic handle manipulations. These functions do not create or destroy the 401 * underlying datasets, only the references to them. 402 */ 403 extern zfs_handle_t *zfs_open(libzfs_handle_t *, const char *, int); 404 extern zfs_handle_t *zfs_handle_dup(zfs_handle_t *); 405 extern void zfs_close(zfs_handle_t *); 406 extern zfs_type_t zfs_get_type(const zfs_handle_t *); 407 extern const char *zfs_get_name(const zfs_handle_t *); 408 extern zpool_handle_t *zfs_get_pool_handle(const zfs_handle_t *); 409 410 /* 411 * Property management functions. Some functions are shared with the kernel, 412 * and are found in sys/fs/zfs.h. 413 */ 414 415 /* 416 * zfs dataset property management 417 */ 418 extern const char *zfs_prop_default_string(zfs_prop_t); 419 extern uint64_t zfs_prop_default_numeric(zfs_prop_t); 420 extern const char *zfs_prop_column_name(zfs_prop_t); 421 extern boolean_t zfs_prop_align_right(zfs_prop_t); 422 423 extern nvlist_t *zfs_valid_proplist(libzfs_handle_t *, zfs_type_t, 424 nvlist_t *, uint64_t, zfs_handle_t *, zpool_handle_t *, const char *); 425 426 extern const char *zfs_prop_to_name(zfs_prop_t); 427 extern int zfs_prop_set(zfs_handle_t *, const char *, const char *); 428 extern int zfs_prop_set_list(zfs_handle_t *, nvlist_t *); 429 extern int zfs_prop_get(zfs_handle_t *, zfs_prop_t, char *, size_t, 430 zprop_source_t *, char *, size_t, boolean_t); 431 extern int zfs_prop_get_recvd(zfs_handle_t *, const char *, char *, size_t, 432 boolean_t); 433 extern int zfs_prop_get_numeric(zfs_handle_t *, zfs_prop_t, uint64_t *, 434 zprop_source_t *, char *, size_t); 435 extern int zfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname, 436 uint64_t *propvalue); 437 extern int zfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname, 438 char *propbuf, int proplen, boolean_t literal); 439 extern int zfs_prop_get_written_int(zfs_handle_t *zhp, const char *propname, 440 uint64_t *propvalue); 441 extern int zfs_prop_get_written(zfs_handle_t *zhp, const char *propname, 442 char *propbuf, int proplen, boolean_t literal); 443 extern int zfs_prop_get_feature(zfs_handle_t *zhp, const char *propname, 444 char *buf, size_t len); 445 extern uint64_t zfs_prop_get_int(zfs_handle_t *, zfs_prop_t); 446 extern int zfs_prop_inherit(zfs_handle_t *, const char *, boolean_t); 447 extern const char *zfs_prop_values(zfs_prop_t); 448 extern int zfs_prop_is_string(zfs_prop_t prop); 449 extern nvlist_t *zfs_get_user_props(zfs_handle_t *); 450 extern nvlist_t *zfs_get_recvd_props(zfs_handle_t *); 451 extern nvlist_t *zfs_get_clones_nvl(zfs_handle_t *); 452 453 454 typedef struct zprop_list { 455 int pl_prop; 456 char *pl_user_prop; 457 struct zprop_list *pl_next; 458 boolean_t pl_all; 459 size_t pl_width; 460 size_t pl_recvd_width; 461 boolean_t pl_fixed; 462 } zprop_list_t; 463 464 extern int zfs_expand_proplist(zfs_handle_t *, zprop_list_t **, boolean_t, 465 boolean_t); 466 extern void zfs_prune_proplist(zfs_handle_t *, uint8_t *); 467 468 #define ZFS_MOUNTPOINT_NONE "none" 469 #define ZFS_MOUNTPOINT_LEGACY "legacy" 470 471 #define ZFS_FEATURE_DISABLED "disabled" 472 #define ZFS_FEATURE_ENABLED "enabled" 473 #define ZFS_FEATURE_ACTIVE "active" 474 475 #define ZFS_UNSUPPORTED_INACTIVE "inactive" 476 #define ZFS_UNSUPPORTED_READONLY "readonly" 477 478 /* 479 * zpool property management 480 */ 481 extern int zpool_expand_proplist(zpool_handle_t *, zprop_list_t **); 482 extern int zpool_prop_get_feature(zpool_handle_t *, const char *, char *, 483 size_t); 484 extern const char *zpool_prop_default_string(zpool_prop_t); 485 extern uint64_t zpool_prop_default_numeric(zpool_prop_t); 486 extern const char *zpool_prop_column_name(zpool_prop_t); 487 extern boolean_t zpool_prop_align_right(zpool_prop_t); 488 489 /* 490 * Functions shared by zfs and zpool property management. 491 */ 492 extern int zprop_iter(zprop_func func, void *cb, boolean_t show_all, 493 boolean_t ordered, zfs_type_t type); 494 extern int zprop_get_list(libzfs_handle_t *, char *, zprop_list_t **, 495 zfs_type_t); 496 extern void zprop_free_list(zprop_list_t *); 497 498 #define ZFS_GET_NCOLS 5 499 500 typedef enum { 501 GET_COL_NONE, 502 GET_COL_NAME, 503 GET_COL_PROPERTY, 504 GET_COL_VALUE, 505 GET_COL_RECVD, 506 GET_COL_SOURCE 507 } zfs_get_column_t; 508 509 /* 510 * Functions for printing zfs or zpool properties 511 */ 512 typedef struct zprop_get_cbdata { 513 int cb_sources; 514 zfs_get_column_t cb_columns[ZFS_GET_NCOLS]; 515 int cb_colwidths[ZFS_GET_NCOLS + 1]; 516 boolean_t cb_scripted; 517 boolean_t cb_literal; 518 boolean_t cb_first; 519 zprop_list_t *cb_proplist; 520 zfs_type_t cb_type; 521 } zprop_get_cbdata_t; 522 523 void zprop_print_one_property(const char *, zprop_get_cbdata_t *, 524 const char *, const char *, zprop_source_t, const char *, 525 const char *); 526 527 /* 528 * Iterator functions. 529 */ 530 typedef int (*zfs_iter_f)(zfs_handle_t *, void *); 531 extern int zfs_iter_root(libzfs_handle_t *, zfs_iter_f, void *); 532 extern int zfs_iter_children(zfs_handle_t *, zfs_iter_f, void *); 533 extern int zfs_iter_dependents(zfs_handle_t *, boolean_t, zfs_iter_f, void *); 534 extern int zfs_iter_filesystems(zfs_handle_t *, zfs_iter_f, void *); 535 extern int zfs_iter_snapshots(zfs_handle_t *, zfs_iter_f, void *); 536 extern int zfs_iter_snapshots_sorted(zfs_handle_t *, zfs_iter_f, void *); 537 extern int zfs_iter_snapspec(zfs_handle_t *, const char *, zfs_iter_f, void *); 538 extern int zfs_iter_bookmarks(zfs_handle_t *, zfs_iter_f, void *); 539 540 typedef struct get_all_cb { 541 zfs_handle_t **cb_handles; 542 size_t cb_alloc; 543 size_t cb_used; 544 boolean_t cb_verbose; 545 int (*cb_getone)(zfs_handle_t *, void *); 546 } get_all_cb_t; 547 548 void libzfs_add_handle(get_all_cb_t *, zfs_handle_t *); 549 int libzfs_dataset_cmp(const void *, const void *); 550 551 /* 552 * Functions to create and destroy datasets. 553 */ 554 extern int zfs_create(libzfs_handle_t *, const char *, zfs_type_t, 555 nvlist_t *); 556 extern int zfs_create_ancestors(libzfs_handle_t *, const char *); 557 extern int zfs_destroy(zfs_handle_t *, boolean_t); 558 extern int zfs_destroy_snaps(zfs_handle_t *, char *, boolean_t); 559 extern int zfs_destroy_snaps_nvl(libzfs_handle_t *, nvlist_t *, boolean_t); 560 extern int zfs_clone(zfs_handle_t *, const char *, nvlist_t *); 561 extern int zfs_snapshot(libzfs_handle_t *, const char *, boolean_t, nvlist_t *); 562 extern int zfs_snapshot_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, 563 nvlist_t *props); 564 extern int zfs_rollback(zfs_handle_t *, zfs_handle_t *, boolean_t); 565 extern int zfs_rename(zfs_handle_t *, const char *, boolean_t, boolean_t); 566 567 typedef struct sendflags { 568 /* print informational messages (ie, -v was specified) */ 569 boolean_t verbose; 570 571 /* recursive send (ie, -R) */ 572 boolean_t replicate; 573 574 /* for incrementals, do all intermediate snapshots */ 575 boolean_t doall; 576 577 /* if dataset is a clone, do incremental from its origin */ 578 boolean_t fromorigin; 579 580 /* do deduplication */ 581 boolean_t dedup; 582 583 /* send properties (ie, -p) */ 584 boolean_t props; 585 586 /* do not send (no-op, ie. -n) */ 587 boolean_t dryrun; 588 589 /* parsable verbose output (ie. -P) */ 590 boolean_t parsable; 591 592 /* show progress (ie. -v) */ 593 boolean_t progress; 594 595 /* large blocks (>128K) are permitted */ 596 boolean_t largeblock; 597 598 /* WRITE_EMBEDDED records of type DATA are permitted */ 599 boolean_t embed_data; 600 } sendflags_t; 601 602 typedef boolean_t (snapfilter_cb_t)(zfs_handle_t *, void *); 603 604 extern int zfs_send(zfs_handle_t *, const char *, const char *, 605 sendflags_t *, int, snapfilter_cb_t, void *, nvlist_t **); 606 extern int zfs_send_one(zfs_handle_t *, const char *, int, enum lzc_send_flags); 607 extern int zfs_send_resume(libzfs_handle_t *, sendflags_t *, int outfd, 608 const char *); 609 extern nvlist_t *zfs_send_resume_token_to_nvlist(libzfs_handle_t *hdl, 610 const char *token); 611 612 extern int zfs_promote(zfs_handle_t *); 613 extern int zfs_hold(zfs_handle_t *, const char *, const char *, 614 boolean_t, int); 615 extern int zfs_hold_nvl(zfs_handle_t *, int, nvlist_t *); 616 extern int zfs_release(zfs_handle_t *, const char *, const char *, boolean_t); 617 extern int zfs_get_holds(zfs_handle_t *, nvlist_t **); 618 extern uint64_t zvol_volsize_to_reservation(uint64_t, nvlist_t *); 619 620 typedef int (*zfs_userspace_cb_t)(void *arg, const char *domain, 621 uid_t rid, uint64_t space); 622 623 extern int zfs_userspace(zfs_handle_t *, zfs_userquota_prop_t, 624 zfs_userspace_cb_t, void *); 625 626 extern int zfs_get_fsacl(zfs_handle_t *, nvlist_t **); 627 extern int zfs_set_fsacl(zfs_handle_t *, boolean_t, nvlist_t *); 628 629 typedef struct recvflags { 630 /* print informational messages (ie, -v was specified) */ 631 boolean_t verbose; 632 633 /* the destination is a prefix, not the exact fs (ie, -d) */ 634 boolean_t isprefix; 635 636 /* 637 * Only the tail of the sent snapshot path is appended to the 638 * destination to determine the received snapshot name (ie, -e). 639 */ 640 boolean_t istail; 641 642 /* do not actually do the recv, just check if it would work (ie, -n) */ 643 boolean_t dryrun; 644 645 /* rollback/destroy filesystems as necessary (eg, -F) */ 646 boolean_t force; 647 648 /* set "canmount=off" on all modified filesystems */ 649 boolean_t canmountoff; 650 651 /* 652 * Mark the file systems as "resumable" and do not destroy them if the 653 * receive is interrupted 654 */ 655 boolean_t resumable; 656 657 /* byteswap flag is used internally; callers need not specify */ 658 boolean_t byteswap; 659 660 /* do not mount file systems as they are extracted (private) */ 661 boolean_t nomount; 662 } recvflags_t; 663 664 extern int zfs_receive(libzfs_handle_t *, const char *, nvlist_t *, 665 recvflags_t *, int, avl_tree_t *); 666 667 typedef enum diff_flags { 668 ZFS_DIFF_PARSEABLE = 0x1, 669 ZFS_DIFF_TIMESTAMP = 0x2, 670 ZFS_DIFF_CLASSIFY = 0x4 671 } diff_flags_t; 672 673 extern int zfs_show_diffs(zfs_handle_t *, int, const char *, const char *, 674 int); 675 676 /* 677 * Miscellaneous functions. 678 */ 679 extern const char *zfs_type_to_name(zfs_type_t); 680 extern void zfs_refresh_properties(zfs_handle_t *); 681 extern int zfs_name_valid(const char *, zfs_type_t); 682 extern zfs_handle_t *zfs_path_to_zhandle(libzfs_handle_t *, char *, zfs_type_t); 683 extern boolean_t zfs_dataset_exists(libzfs_handle_t *, const char *, 684 zfs_type_t); 685 extern int zfs_spa_version(zfs_handle_t *, int *); 686 extern boolean_t zfs_bookmark_exists(const char *path); 687 688 /* 689 * Mount support functions. 690 */ 691 extern boolean_t is_mounted(libzfs_handle_t *, const char *special, char **); 692 extern boolean_t zfs_is_mounted(zfs_handle_t *, char **); 693 extern int zfs_mount(zfs_handle_t *, const char *, int); 694 extern int zfs_unmount(zfs_handle_t *, const char *, int); 695 extern int zfs_unmountall(zfs_handle_t *, int); 696 697 /* 698 * Share support functions. 699 */ 700 extern boolean_t zfs_is_shared(zfs_handle_t *); 701 extern int zfs_share(zfs_handle_t *); 702 extern int zfs_unshare(zfs_handle_t *); 703 704 /* 705 * Protocol-specific share support functions. 706 */ 707 extern boolean_t zfs_is_shared_nfs(zfs_handle_t *, char **); 708 extern boolean_t zfs_is_shared_smb(zfs_handle_t *, char **); 709 extern int zfs_share_nfs(zfs_handle_t *); 710 extern int zfs_share_smb(zfs_handle_t *); 711 extern int zfs_shareall(zfs_handle_t *); 712 extern int zfs_unshare_nfs(zfs_handle_t *, const char *); 713 extern int zfs_unshare_smb(zfs_handle_t *, const char *); 714 extern int zfs_unshareall_nfs(zfs_handle_t *); 715 extern int zfs_unshareall_smb(zfs_handle_t *); 716 extern int zfs_unshareall_bypath(zfs_handle_t *, const char *); 717 extern int zfs_unshareall(zfs_handle_t *); 718 extern int zfs_deleg_share_nfs(libzfs_handle_t *, char *, char *, char *, 719 void *, void *, int, zfs_share_op_t); 720 721 /* 722 * When dealing with nvlists, verify() is extremely useful 723 */ 724 #ifdef NDEBUG 725 #define verify(EX) ((void)(EX)) 726 #else 727 #define verify(EX) assert(EX) 728 #endif 729 730 /* 731 * Utility function to convert a number to a human-readable form. 732 */ 733 extern void zfs_nicenum(uint64_t, char *, size_t); 734 extern int zfs_nicestrtonum(libzfs_handle_t *, const char *, uint64_t *); 735 736 /* 737 * Given a device or file, determine if it is part of a pool. 738 */ 739 extern int zpool_in_use(libzfs_handle_t *, int, pool_state_t *, char **, 740 boolean_t *); 741 742 /* 743 * Label manipulation. 744 */ 745 extern int zpool_read_label(int, nvlist_t **); 746 extern int zpool_clear_label(int); 747 748 /* is this zvol valid for use as a dump device? */ 749 extern int zvol_check_dump_config(char *); 750 751 /* 752 * Management interfaces for SMB ACL files 753 */ 754 755 int zfs_smb_acl_add(libzfs_handle_t *, char *, char *, char *); 756 int zfs_smb_acl_remove(libzfs_handle_t *, char *, char *, char *); 757 int zfs_smb_acl_purge(libzfs_handle_t *, char *, char *); 758 int zfs_smb_acl_rename(libzfs_handle_t *, char *, char *, char *, char *); 759 760 /* 761 * Enable and disable datasets within a pool by mounting/unmounting and 762 * sharing/unsharing them. 763 */ 764 extern int zpool_enable_datasets(zpool_handle_t *, const char *, int); 765 extern int zpool_disable_datasets(zpool_handle_t *, boolean_t); 766 767 /* 768 * Mappings between vdev and FRU. 769 */ 770 extern void libzfs_fru_refresh(libzfs_handle_t *); 771 extern const char *libzfs_fru_lookup(libzfs_handle_t *, const char *); 772 extern const char *libzfs_fru_devpath(libzfs_handle_t *, const char *); 773 extern boolean_t libzfs_fru_compare(libzfs_handle_t *, const char *, 774 const char *); 775 extern boolean_t libzfs_fru_notself(libzfs_handle_t *, const char *); 776 extern int zpool_fru_set(zpool_handle_t *, uint64_t, const char *); 777 778 extern int zfs_get_hole_count(const char *, uint64_t *, uint64_t *); 779 780 #ifdef __cplusplus 781 } 782 #endif 783 784 #endif /* _LIBZFS_H */ 785