include/libzfs.h

   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  */
  25
  26 #ifndef _LIBZFS_H
  27 #define _LIBZFS_H
  28
  29 #include <assert.h>
  30 #include <libnvpair.h>
  31 #include <sys/mnttab.h>
  32 #include <sys/param.h>
  33 #include <sys/types.h>
  34 #include <sys/varargs.h>
  35 #include <sys/fs/zfs.h>
  36 #include <sys/avl.h>
  37 #include <ucred.h>
  38
  39 #ifdef  __cplusplus
  40 extern "C" {
  41 #endif
  42
  43 /*
  44  * Miscellaneous ZFS constants
  45  */
  46 #define ZFS_MAXNAMELEN          MAXNAMELEN
  47 #define ZPOOL_MAXNAMELEN        MAXNAMELEN
  48 #define ZFS_MAXPROPLEN          MAXPATHLEN
  49 #define ZPOOL_MAXPROPLEN        MAXPATHLEN
  50
  51 /*
  52  * Default device paths
  53  */
  54
  55 #if defined(__sun__) || defined(__sun)
  56 #define DISK_ROOT       "/dev/dsk"
  57 #define RDISK_ROOT      "/dev/rdsk"
  58 #define UDISK_ROOT      RDISK_ROOT
  59 #define FIRST_SLICE     "s0"
  60 #define BACKUP_SLICE    "s2"
  61 #endif
  62
  63 #ifdef __linux__
  64 #define DISK_ROOT       "/dev"
  65 #define RDISK_ROOT      DISK_ROOT
  66 #define UDISK_ROOT      "/dev/disk"
  67 #define FIRST_SLICE     "1"
  68 #define BACKUP_SLICE    ""
  69 #endif
  70
  71 /*
  72  * libzfs errors
  73  */
  74 enum {
  75         EZFS_NOMEM = 2000,      /* out of memory */
  76         EZFS_BADPROP,           /* invalid property value */
  77         EZFS_PROPREADONLY,      /* cannot set readonly property */
  78         EZFS_PROPTYPE,          /* property does not apply to dataset type */
  79         EZFS_PROPNONINHERIT,    /* property is not inheritable */
  80         EZFS_PROPSPACE,         /* bad quota or reservation */
  81         EZFS_BADTYPE,           /* dataset is not of appropriate type */
  82         EZFS_BUSY,              /* pool or dataset is busy */
  83         EZFS_EXISTS,            /* pool or dataset already exists */
  84         EZFS_NOENT,             /* no such pool or dataset */
  85         EZFS_BADSTREAM,         /* bad backup stream */
  86         EZFS_DSREADONLY,        /* dataset is readonly */
  87         EZFS_VOLTOOBIG,         /* volume is too large for 32-bit system */
  88         EZFS_INVALIDNAME,       /* invalid dataset name */
  89         EZFS_BADRESTORE,        /* unable to restore to destination */
  90         EZFS_BADBACKUP,         /* backup failed */
  91         EZFS_BADTARGET,         /* bad attach/detach/replace target */
  92         EZFS_NODEVICE,          /* no such device in pool */
  93         EZFS_BADDEV,            /* invalid device to add */
  94         EZFS_NOREPLICAS,        /* no valid replicas */
  95         EZFS_RESILVERING,       /* currently resilvering */
  96         EZFS_BADVERSION,        /* unsupported version */
  97         EZFS_POOLUNAVAIL,       /* pool is currently unavailable */
  98         EZFS_DEVOVERFLOW,       /* too many devices in one vdev */
  99         EZFS_BADPATH,           /* must be an absolute path */
 100         EZFS_CROSSTARGET,       /* rename or clone across pool or dataset */
 101         EZFS_ZONED,             /* used improperly in local zone */
 102         EZFS_MOUNTFAILED,       /* failed to mount dataset */
 103         EZFS_UMOUNTFAILED,      /* failed to unmount dataset */
 104         EZFS_UNSHARENFSFAILED,  /* unshare(1M) failed */
 105         EZFS_SHARENFSFAILED,    /* share(1M) failed */
 106         EZFS_PERM,              /* permission denied */
 107         EZFS_NOSPC,             /* out of space */
 108         EZFS_FAULT,             /* bad address */
 109         EZFS_IO,                /* I/O error */
 110         EZFS_INTR,              /* signal received */
 111         EZFS_ISSPARE,           /* device is a hot spare */
 112         EZFS_INVALCONFIG,       /* invalid vdev configuration */
 113         EZFS_RECURSIVE,         /* recursive dependency */
 114         EZFS_NOHISTORY,         /* no history object */
 115         EZFS_POOLPROPS,         /* couldn't retrieve pool props */
 116         EZFS_POOL_NOTSUP,       /* ops not supported for this type of pool */
 117         EZFS_POOL_INVALARG,     /* invalid argument for this pool operation */
 118         EZFS_NAMETOOLONG,       /* dataset name is too long */
 119         EZFS_OPENFAILED,        /* open of device failed */
 120         EZFS_NOCAP,             /* couldn't get capacity */
 121         EZFS_LABELFAILED,       /* write of label failed */
 122         EZFS_BADWHO,            /* invalid permission who */
 123         EZFS_BADPERM,           /* invalid permission */
 124         EZFS_BADPERMSET,        /* invalid permission set name */
 125         EZFS_NODELEGATION,      /* delegated administration is disabled */
 126         EZFS_UNSHARESMBFAILED,  /* failed to unshare over smb */
 127         EZFS_SHARESMBFAILED,    /* failed to share over smb */
 128         EZFS_BADCACHE,          /* bad cache file */
 129         EZFS_ISL2CACHE,         /* device is for the level 2 ARC */
 130         EZFS_VDEVNOTSUP,        /* unsupported vdev type */
 131         EZFS_NOTSUP,            /* ops not supported on this dataset */
 132         EZFS_ACTIVE_SPARE,      /* pool has active shared spare devices */
 133         EZFS_UNPLAYED_LOGS,     /* log device has unplayed logs */
 134         EZFS_REFTAG_RELE,       /* snapshot release: tag not found */
 135         EZFS_REFTAG_HOLD,       /* snapshot hold: tag already exists */
 136         EZFS_TAGTOOLONG,        /* snapshot hold/rele: tag too long */
 137         EZFS_PIPEFAILED,        /* pipe create failed */
 138         EZFS_THREADCREATEFAILED, /* thread create failed */
 139         EZFS_POSTSPLIT_ONLINE,  /* onlining a disk after splitting it */
 140         EZFS_SCRUBBING,         /* currently scrubbing */
 141         EZFS_NO_SCRUB,          /* no active scrub */
 142         EZFS_DIFF,              /* general failure of zfs diff */
 143         EZFS_DIFFDATA,          /* bad zfs diff data */
 144         EZFS_POOLREADONLY,      /* pool is in read-only mode */
 145         EZFS_UNKNOWN
 146 };
 147
 148 /*
 149  * The following data structures are all part
 150  * of the zfs_allow_t data structure which is
 151  * used for printing 'allow' permissions.
 152  * It is a linked list of zfs_allow_t's which
 153  * then contain avl tree's for user/group/sets/...
 154  * and each one of the entries in those trees have
 155  * avl tree's for the permissions they belong to and
 156  * whether they are local,descendent or local+descendent
 157  * permissions.  The AVL trees are used primarily for
 158  * sorting purposes, but also so that we can quickly find
 159  * a given user and or permission.
 160  */
 161 typedef struct zfs_perm_node {
 162         avl_node_t z_node;
 163         char z_pname[MAXPATHLEN];
 164 } zfs_perm_node_t;
 165
 166 typedef struct zfs_allow_node {
 167         avl_node_t z_node;
 168         char z_key[MAXPATHLEN];         /* name, such as joe */
 169         avl_tree_t z_localdescend;      /* local+descendent perms */
 170         avl_tree_t z_local;             /* local permissions */
 171         avl_tree_t z_descend;           /* descendent permissions */
 172 } zfs_allow_node_t;
 173
 174 typedef struct zfs_allow {
 175         struct zfs_allow *z_next;
 176         char z_setpoint[MAXPATHLEN];
 177         avl_tree_t z_sets;
 178         avl_tree_t z_crperms;
 179         avl_tree_t z_user;
 180         avl_tree_t z_group;
 181         avl_tree_t z_everyone;
 182 } zfs_allow_t;
 183
 184 /*
 185  * Basic handle types
 186  */
 187 typedef struct zfs_handle zfs_handle_t;
 188 typedef struct zpool_handle zpool_handle_t;
 189 typedef struct libzfs_handle libzfs_handle_t;
 190
 191 /*
 192  * Library initialization
 193  */
 194 extern libzfs_handle_t *libzfs_init(void);
 195 extern void libzfs_fini(libzfs_handle_t *);
 196
 197 extern libzfs_handle_t *zpool_get_handle(zpool_handle_t *);
 198 extern libzfs_handle_t *zfs_get_handle(zfs_handle_t *);
 199
 200 extern void libzfs_print_on_error(libzfs_handle_t *, boolean_t);
 201
 202 extern int libzfs_errno(libzfs_handle_t *);
 203 extern const char *libzfs_error_action(libzfs_handle_t *);
 204 extern const char *libzfs_error_description(libzfs_handle_t *);
 205 extern void libzfs_mnttab_init(libzfs_handle_t *);
 206 extern void libzfs_mnttab_fini(libzfs_handle_t *);
 207 extern void libzfs_mnttab_cache(libzfs_handle_t *, boolean_t);
 208 extern int libzfs_mnttab_find(libzfs_handle_t *, const char *,
 209     struct mnttab *);
 210 extern void libzfs_mnttab_add(libzfs_handle_t *, const char *,
 211     const char *, const char *);
 212 extern void libzfs_mnttab_remove(libzfs_handle_t *, const char *);
 213
 214 /*
 215  * Basic handle functions
 216  */
 217 extern zpool_handle_t *zpool_open(libzfs_handle_t *, const char *);
 218 extern zpool_handle_t *zpool_open_canfail(libzfs_handle_t *, const char *);
 219 extern void zpool_close(zpool_handle_t *);
 220 extern const char *zpool_get_name(zpool_handle_t *);
 221 extern int zpool_get_state(zpool_handle_t *);
 222 extern char *zpool_state_to_name(vdev_state_t, vdev_aux_t);
 223 extern void zpool_free_handles(libzfs_handle_t *);
 224
 225 /*
 226  * Iterate over all active pools in the system.
 227  */
 228 typedef int (*zpool_iter_f)(zpool_handle_t *, void *);
 229 extern int zpool_iter(libzfs_handle_t *, zpool_iter_f, void *);
 230
 231 /*
 232  * Functions to create and destroy pools
 233  */
 234 extern int zpool_create(libzfs_handle_t *, const char *, nvlist_t *,
 235     nvlist_t *, nvlist_t *);
 236 extern int zpool_destroy(zpool_handle_t *);
 237 extern int zpool_add(zpool_handle_t *, nvlist_t *);
 238
 239 typedef struct splitflags {
 240         /* do not split, but return the config that would be split off */
 241         int dryrun : 1;
 242
 243         /* after splitting, import the pool */
 244         int import : 1;
 245 } splitflags_t;
 246
 247 /*
 248  * Functions to manipulate pool and vdev state
 249  */
 250 extern int zpool_scan(zpool_handle_t *, pool_scan_func_t);
 251 extern int zpool_clear(zpool_handle_t *, const char *, nvlist_t *);
 252
 253 extern int zpool_vdev_online(zpool_handle_t *, const char *, int,
 254     vdev_state_t *);
 255 extern int zpool_vdev_offline(zpool_handle_t *, const char *, boolean_t);
 256 extern int zpool_vdev_attach(zpool_handle_t *, const char *,
 257     const char *, nvlist_t *, int);
 258 extern int zpool_vdev_detach(zpool_handle_t *, const char *);
 259 extern int zpool_vdev_remove(zpool_handle_t *, const char *);
 260 extern int zpool_vdev_split(zpool_handle_t *, char *, nvlist_t **, nvlist_t *,
 261     splitflags_t);
 262
 263 extern int zpool_vdev_fault(zpool_handle_t *, uint64_t, vdev_aux_t);
 264 extern int zpool_vdev_degrade(zpool_handle_t *, uint64_t, vdev_aux_t);
 265 extern int zpool_vdev_clear(zpool_handle_t *, uint64_t);
 266
 267 extern nvlist_t *zpool_find_vdev(zpool_handle_t *, const char *, boolean_t *,
 268     boolean_t *, boolean_t *);
 269 extern nvlist_t *zpool_find_vdev_by_physpath(zpool_handle_t *, const char *,
 270     boolean_t *, boolean_t *, boolean_t *);
 271 extern int zpool_label_disk_wait(char *, int);
 272 extern int zpool_label_disk(libzfs_handle_t *, zpool_handle_t *, char *);
 273
 274 /*
 275  * Functions to manage pool properties
 276  */
 277 extern int zpool_set_prop(zpool_handle_t *, const char *, const char *);
 278 extern int zpool_get_prop(zpool_handle_t *, zpool_prop_t, char *,
 279     size_t proplen, zprop_source_t *);
 280 extern uint64_t zpool_get_prop_int(zpool_handle_t *, zpool_prop_t,
 281     zprop_source_t *);
 282
 283 extern const char *zpool_prop_to_name(zpool_prop_t);
 284 extern const char *zpool_prop_values(zpool_prop_t);
 285
 286 /*
 287  * Pool health statistics.
 288  */
 289 typedef enum {
 290         /*
 291          * The following correspond to faults as defined in the (fault.fs.zfs.*)
 292          * event namespace.  Each is associated with a corresponding message ID.
 293          */
 294         ZPOOL_STATUS_CORRUPT_CACHE,     /* corrupt /kernel/drv/zpool.cache */
 295         ZPOOL_STATUS_MISSING_DEV_R,     /* missing device with replicas */
 296         ZPOOL_STATUS_MISSING_DEV_NR,    /* missing device with no replicas */
 297         ZPOOL_STATUS_CORRUPT_LABEL_R,   /* bad device label with replicas */
 298         ZPOOL_STATUS_CORRUPT_LABEL_NR,  /* bad device label with no replicas */
 299         ZPOOL_STATUS_BAD_GUID_SUM,      /* sum of device guids didn't match */
 300         ZPOOL_STATUS_CORRUPT_POOL,      /* pool metadata is corrupted */
 301         ZPOOL_STATUS_CORRUPT_DATA,      /* data errors in user (meta)data */
 302         ZPOOL_STATUS_FAILING_DEV,       /* device experiencing errors */
 303         ZPOOL_STATUS_VERSION_NEWER,     /* newer on-disk version */
 304         ZPOOL_STATUS_HOSTID_MISMATCH,   /* last accessed by another system */
 305         ZPOOL_STATUS_IO_FAILURE_WAIT,   /* failed I/O, failmode 'wait' */
 306         ZPOOL_STATUS_IO_FAILURE_CONTINUE, /* failed I/O, failmode 'continue' */
 307         ZPOOL_STATUS_BAD_LOG,           /* cannot read log chain(s) */
 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 on-disk version */
 323         ZPOOL_STATUS_RESILVERING,       /* device being resilvered */
 324         ZPOOL_STATUS_OFFLINE_DEV,       /* device online */
 325         ZPOOL_STATUS_REMOVED_DEV,       /* removed device */
 326
 327         /*
 328          * Finally, the following indicates a healthy pool.
 329          */
 330         ZPOOL_STATUS_OK
 331 } zpool_status_t;
 332
 333 extern zpool_status_t zpool_get_status(zpool_handle_t *, char **);
 334 extern zpool_status_t zpool_import_status(nvlist_t *, char **);
 335 extern void zpool_dump_ddt(const ddt_stat_t *dds, const ddt_histogram_t *ddh);
 336
 337 /*
 338  * Statistics and configuration functions.
 339  */
 340 extern nvlist_t *zpool_get_config(zpool_handle_t *, nvlist_t **);
 341 extern int zpool_refresh_stats(zpool_handle_t *, boolean_t *);
 342 extern int zpool_get_errlog(zpool_handle_t *, nvlist_t **);
 343
 344 /*
 345  * Import and export functions
 346  */
 347 extern int zpool_export(zpool_handle_t *, boolean_t);
 348 extern int zpool_export_force(zpool_handle_t *);
 349 extern int zpool_import(libzfs_handle_t *, nvlist_t *, const char *,
 350     char *altroot);
 351 extern int zpool_import_props(libzfs_handle_t *, nvlist_t *, const char *,
 352     nvlist_t *, int);
 353
 354 /*
 355  * Search for pools to import
 356  */
 357
 358 typedef struct importargs {
 359         char **path;            /* a list of paths to search            */
 360         int paths;              /* number of paths to search            */
 361         char *poolname;         /* name of a pool to find               */
 362         uint64_t guid;          /* guid of a pool to find               */
 363         char *cachefile;        /* cachefile to use for import          */
 364         int can_be_active : 1;  /* can the pool be active?              */
 365         int unique : 1;         /* does 'poolname' already exist?       */
 366         int exists : 1;         /* set on return if pool already exists */
 367 } importargs_t;
 368
 369 extern nvlist_t *zpool_search_import(libzfs_handle_t *, importargs_t *);
 370
 371 /* legacy pool search routines */
 372 extern nvlist_t *zpool_find_import(libzfs_handle_t *, int, char **);
 373 extern nvlist_t *zpool_find_import_cached(libzfs_handle_t *, const char *,
 374     char *, uint64_t);
 375
 376 /*
 377  * Miscellaneous pool functions
 378  */
 379 struct zfs_cmd;
 380
 381 extern const char *zfs_history_event_names[LOG_END];
 382
 383 extern char *zpool_vdev_name(libzfs_handle_t *, zpool_handle_t *, nvlist_t *,
 384     boolean_t verbose);
 385 extern int zpool_upgrade(zpool_handle_t *, uint64_t);
 386 extern int zpool_get_history(zpool_handle_t *, nvlist_t **);
 387 extern int zpool_history_unpack(char *, uint64_t, uint64_t *,
 388     nvlist_t ***, uint_t *);
 389 extern void zpool_set_history_str(const char *subcommand, int argc,
 390     char **argv, char *history_str);
 391 extern int zpool_stage_history(libzfs_handle_t *, const char *);
 392 extern int zpool_events_next(libzfs_handle_t *, nvlist_t **, int *, int, int);
 393 extern int zpool_events_clear(libzfs_handle_t *, int *);
 394 extern void zpool_obj_to_path(zpool_handle_t *, uint64_t, uint64_t, char *,
 395     size_t len);
 396 extern int zfs_ioctl(libzfs_handle_t *, int, struct zfs_cmd *);
 397 extern int zpool_get_physpath(zpool_handle_t *, char *, size_t);
 398 extern void zpool_explain_recover(libzfs_handle_t *, const char *, int,
 399     nvlist_t *);
 400
 401 /*
 402  * Basic handle manipulations.  These functions do not create or destroy the
 403  * underlying datasets, only the references to them.
 404  */
 405 extern zfs_handle_t *zfs_open(libzfs_handle_t *, const char *, int);
 406 extern void zfs_close(zfs_handle_t *);
 407 extern zfs_type_t zfs_get_type(const zfs_handle_t *);
 408 extern const char *zfs_get_name(const zfs_handle_t *);
 409 extern zpool_handle_t *zfs_get_pool_handle(const zfs_handle_t *);
 410
 411 /*
 412  * Property management functions.  Some functions are shared with the kernel,
 413  * and are found in sys/fs/zfs.h.
 414  */
 415
 416 /*
 417  * zfs dataset property management
 418  */
 419 extern const char *zfs_prop_default_string(zfs_prop_t);
 420 extern uint64_t zfs_prop_default_numeric(zfs_prop_t);
 421 extern const char *zfs_prop_column_name(zfs_prop_t);
 422 extern boolean_t zfs_prop_align_right(zfs_prop_t);
 423
 424 extern nvlist_t *zfs_valid_proplist(libzfs_handle_t *, zfs_type_t,
 425     nvlist_t *, uint64_t, zfs_handle_t *, const char *);
 426
 427 extern const char *zfs_prop_to_name(zfs_prop_t);
 428 extern int zfs_prop_set(zfs_handle_t *, const char *, const char *);
 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 uint64_t zfs_prop_get_int(zfs_handle_t *, zfs_prop_t);
 440 extern int zfs_prop_inherit(zfs_handle_t *, const char *, boolean_t);
 441 extern const char *zfs_prop_values(zfs_prop_t);
 442 extern int zfs_prop_is_string(zfs_prop_t prop);
 443 extern nvlist_t *zfs_get_user_props(zfs_handle_t *);
 444 extern nvlist_t *zfs_get_recvd_props(zfs_handle_t *);
 445
 446 typedef struct zprop_list {
 447         int             pl_prop;
 448         char            *pl_user_prop;
 449         struct zprop_list *pl_next;
 450         boolean_t       pl_all;
 451         size_t          pl_width;
 452         size_t          pl_recvd_width;
 453         boolean_t       pl_fixed;
 454 } zprop_list_t;
 455
 456 extern int zfs_expand_proplist(zfs_handle_t *, zprop_list_t **, boolean_t);
 457 extern void zfs_prune_proplist(zfs_handle_t *, uint8_t *);
 458
 459 #define ZFS_MOUNTPOINT_NONE     "none"
 460 #define ZFS_MOUNTPOINT_LEGACY   "legacy"
 461
 462 /*
 463  * zpool property management
 464  */
 465 extern int zpool_expand_proplist(zpool_handle_t *, zprop_list_t **);
 466 extern const char *zpool_prop_default_string(zpool_prop_t);
 467 extern uint64_t zpool_prop_default_numeric(zpool_prop_t);
 468 extern const char *zpool_prop_column_name(zpool_prop_t);
 469 extern boolean_t zpool_prop_align_right(zpool_prop_t);
 470
 471 /*
 472  * Functions shared by zfs and zpool property management.
 473  */
 474 extern int zprop_iter(zprop_func func, void *cb, boolean_t show_all,
 475     boolean_t ordered, zfs_type_t type);
 476 extern int zprop_get_list(libzfs_handle_t *, char *, zprop_list_t **,
 477     zfs_type_t);
 478 extern void zprop_free_list(zprop_list_t *);
 479
 480 #define ZFS_GET_NCOLS   5
 481
 482 typedef enum {
 483         GET_COL_NONE,
 484         GET_COL_NAME,
 485         GET_COL_PROPERTY,
 486         GET_COL_VALUE,
 487         GET_COL_RECVD,
 488         GET_COL_SOURCE
 489 } zfs_get_column_t;
 490
 491 /*
 492  * Functions for printing zfs or zpool properties
 493  */
 494 typedef struct zprop_get_cbdata {
 495         int cb_sources;
 496         zfs_get_column_t cb_columns[ZFS_GET_NCOLS];
 497         int cb_colwidths[ZFS_GET_NCOLS + 1];
 498         boolean_t cb_scripted;
 499         boolean_t cb_literal;
 500         boolean_t cb_first;
 501         zprop_list_t *cb_proplist;
 502         zfs_type_t cb_type;
 503 } zprop_get_cbdata_t;
 504
 505 void zprop_print_one_property(const char *, zprop_get_cbdata_t *,
 506     const char *, const char *, zprop_source_t, const char *,
 507     const char *);
 508
 509 /*
 510  * Iterator functions.
 511  */
 512 typedef int (*zfs_iter_f)(zfs_handle_t *, void *);
 513 extern int zfs_iter_root(libzfs_handle_t *, zfs_iter_f, void *);
 514 extern int zfs_iter_children(zfs_handle_t *, zfs_iter_f, void *);
 515 extern int zfs_iter_dependents(zfs_handle_t *, boolean_t, zfs_iter_f, void *);
 516 extern int zfs_iter_filesystems(zfs_handle_t *, zfs_iter_f, void *);
 517 extern int zfs_iter_snapshots(zfs_handle_t *, zfs_iter_f, void *);
 518 extern int zfs_iter_snapshots_sorted(zfs_handle_t *, zfs_iter_f, void *);
 519
 520 typedef struct get_all_cb {
 521         zfs_handle_t    **cb_handles;
 522         size_t          cb_alloc;
 523         size_t          cb_used;
 524         boolean_t       cb_verbose;
 525         int             (*cb_getone)(zfs_handle_t *, void *);
 526 } get_all_cb_t;
 527
 528 void libzfs_add_handle(get_all_cb_t *, zfs_handle_t *);
 529 int libzfs_dataset_cmp(const void *, const void *);
 530
 531 /*
 532  * Functions to create and destroy datasets.
 533  */
 534 extern int zfs_create(libzfs_handle_t *, const char *, zfs_type_t,
 535     nvlist_t *);
 536 extern int zfs_create_ancestors(libzfs_handle_t *, const char *);
 537 extern int zfs_destroy(zfs_handle_t *, boolean_t);
 538 extern int zfs_destroy_snaps(zfs_handle_t *, char *, boolean_t);
 539 extern int zfs_clone(zfs_handle_t *, const char *, nvlist_t *);
 540 extern int zfs_snapshot(libzfs_handle_t *, const char *, boolean_t, nvlist_t *);
 541 extern int zfs_rollback(zfs_handle_t *, zfs_handle_t *, boolean_t);
 542 extern int zfs_rename(zfs_handle_t *, const char *, boolean_t);
 543
 544 typedef struct sendflags {
 545         /* print informational messages (ie, -v was specified) */
 546         int verbose : 1;
 547
 548         /* recursive send  (ie, -R) */
 549         int replicate : 1;
 550
 551         /* for incrementals, do all intermediate snapshots */
 552         int doall : 1; /* (ie, -I) */
 553
 554         /* if dataset is a clone, do incremental from its origin */
 555         int fromorigin : 1;
 556
 557         /* do deduplication */
 558         int dedup : 1;
 559
 560         /* send properties (ie, -p) */
 561         int props : 1;
 562 } sendflags_t;
 563
 564 typedef boolean_t (snapfilter_cb_t)(zfs_handle_t *, void *);
 565
 566 extern int zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap,
 567     sendflags_t flags, int outfd, snapfilter_cb_t filter_func,
 568     void *cb_arg, nvlist_t **debugnvp);
 569
 570 extern int zfs_promote(zfs_handle_t *);
 571 extern int zfs_hold(zfs_handle_t *, const char *, const char *, boolean_t,
 572     boolean_t, boolean_t, int, uint64_t, uint64_t);
 573 extern int zfs_release(zfs_handle_t *, const char *, const char *, boolean_t);
 574 extern uint64_t zvol_volsize_to_reservation(uint64_t, nvlist_t *);
 575
 576 typedef int (*zfs_userspace_cb_t)(void *arg, const char *domain,
 577     uid_t rid, uint64_t space);
 578
 579 extern int zfs_userspace(zfs_handle_t *zhp, zfs_userquota_prop_t type,
 580     zfs_userspace_cb_t func, void *arg);
 581
 582 typedef struct recvflags {
 583         /* print informational messages (ie, -v was specified) */
 584         int verbose : 1;
 585
 586         /* the destination is a prefix, not the exact fs (ie, -d) */
 587         int isprefix : 1;
 588
 589         /*
 590          * Only the tail of the sent snapshot path is appended to the
 591          * destination to determine the received snapshot name (ie, -e).
 592          */
 593         int istail : 1;
 594
 595         /* do not actually do the recv, just check if it would work (ie, -n) */
 596         int dryrun : 1;
 597
 598         /* rollback/destroy filesystems as necessary (eg, -F) */
 599         int force : 1;
 600
 601         /* set "canmount=off" on all modified filesystems */
 602         int canmountoff : 1;
 603
 604         /* byteswap flag is used internally; callers need not specify */
 605         int byteswap : 1;
 606
 607         /* do not mount file systems as they are extracted (private) */
 608         int nomount : 1;
 609 } recvflags_t;
 610
 611 extern int zfs_receive(libzfs_handle_t *, const char *, recvflags_t,
 612     int, avl_tree_t *);
 613
 614 typedef enum diff_flags {
 615         ZFS_DIFF_PARSEABLE = 0x1,
 616         ZFS_DIFF_TIMESTAMP = 0x2,
 617         ZFS_DIFF_CLASSIFY = 0x4
 618 } diff_flags_t;
 619
 620 extern int zfs_show_diffs(zfs_handle_t *, int, const char *, const char *,
 621     int);
 622
 623 /*
 624  * Miscellaneous functions.
 625  */
 626 extern const char *zfs_type_to_name(zfs_type_t);
 627 extern void zfs_refresh_properties(zfs_handle_t *);
 628 extern int zfs_name_valid(const char *, zfs_type_t);
 629 extern zfs_handle_t *zfs_path_to_zhandle(libzfs_handle_t *, char *, zfs_type_t);
 630 extern boolean_t zfs_dataset_exists(libzfs_handle_t *, const char *,
 631     zfs_type_t);
 632 extern int zfs_spa_version(zfs_handle_t *, int *);
 633
 634 /*
 635  * Mount support functions.
 636  */
 637 extern boolean_t is_mounted(libzfs_handle_t *, const char *special, char **);
 638 extern boolean_t zfs_is_mounted(zfs_handle_t *, char **);
 639 extern int zfs_mount(zfs_handle_t *, const char *, int);
 640 extern int zfs_unmount(zfs_handle_t *, const char *, int);
 641 extern int zfs_unmountall(zfs_handle_t *, int);
 642
 643 /*
 644  * Share support functions.
 645  */
 646 extern boolean_t zfs_is_shared(zfs_handle_t *);
 647 extern int zfs_share(zfs_handle_t *);
 648 extern int zfs_unshare(zfs_handle_t *);
 649
 650 /*
 651  * Protocol-specific share support functions.
 652  */
 653 extern boolean_t zfs_is_shared_nfs(zfs_handle_t *, char **);
 654 extern boolean_t zfs_is_shared_smb(zfs_handle_t *, char **);
 655 extern int zfs_share_nfs(zfs_handle_t *);
 656 extern int zfs_share_smb(zfs_handle_t *);
 657 extern int zfs_shareall(zfs_handle_t *);
 658 extern int zfs_unshare_nfs(zfs_handle_t *, const char *);
 659 extern int zfs_unshare_smb(zfs_handle_t *, const char *);
 660 extern int zfs_unshareall_nfs(zfs_handle_t *);
 661 extern int zfs_unshareall_smb(zfs_handle_t *);
 662 extern int zfs_unshareall_bypath(zfs_handle_t *, const char *);
 663 extern int zfs_unshareall(zfs_handle_t *);
 664 extern int zfs_deleg_share_nfs(libzfs_handle_t *, char *, char *, char *,
 665     void *, void *, int, zfs_share_op_t);
 666
 667 /*
 668  * Utility function to convert a number to a human-readable form.
 669  */
 670 extern void zfs_nicenum(uint64_t, char *, size_t);
 671 extern int zfs_nicestrtonum(libzfs_handle_t *, const char *, uint64_t *);
 672
 673 /*
 674  * Given a device or file, determine if it is part of a pool.
 675  */
 676 extern int zpool_in_use(libzfs_handle_t *, int, pool_state_t *, char **,
 677     boolean_t *);
 678
 679 /*
 680  * Label manipulation.
 681  */
 682 extern int zpool_read_label(int, nvlist_t **);
 683 extern int zpool_clear_label(int);
 684
 685 /*
 686  * Management interfaces for SMB ACL files
 687  */
 688
 689 int zfs_smb_acl_add(libzfs_handle_t *, char *, char *, char *);
 690 int zfs_smb_acl_remove(libzfs_handle_t *, char *, char *, char *);
 691 int zfs_smb_acl_purge(libzfs_handle_t *, char *, char *);
 692 int zfs_smb_acl_rename(libzfs_handle_t *, char *, char *, char *, char *);
 693
 694 /*
 695  * Enable and disable datasets within a pool by mounting/unmounting and
 696  * sharing/unsharing them.
 697  */
 698 extern int zpool_enable_datasets(zpool_handle_t *, const char *, int);
 699 extern int zpool_disable_datasets(zpool_handle_t *, boolean_t);
 700
 701 /*
 702  * Mappings between vdev and FRU.
 703  */
 704 extern void libzfs_fru_refresh(libzfs_handle_t *);
 705 extern const char *libzfs_fru_lookup(libzfs_handle_t *, const char *);
 706 extern const char *libzfs_fru_devpath(libzfs_handle_t *, const char *);
 707 extern boolean_t libzfs_fru_compare(libzfs_handle_t *, const char *,
 708     const char *);
 709 extern boolean_t libzfs_fru_notself(libzfs_handle_t *, const char *);
 710 extern int zpool_fru_set(zpool_handle_t *, uint64_t, const char *);
 711
 712 #ifdef  __cplusplus
 713 }
 714 #endif
 715
 716 #endif  /* _LIBZFS_H */