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  * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
  25  * Copyright (c) 2012 by Delphix. All rights reserved.
  26  * Copyright (c) 2012, Joyent, Inc. All rights reserved.
  27  */
  28
  29 #ifndef _LIBZFS_H
  30 #define _LIBZFS_H
  31
  32 #include <assert.h>
  33 #include <libnvpair.h>
  34 #include <sys/mnttab.h>
  35 #include <sys/param.h>
  36 #include <sys/types.h>
  37 #include <sys/varargs.h>
  38 #include <sys/fs/zfs.h>
  39 #include <sys/avl.h>
  40 #include <ucred.h>
  41
  42 #ifdef  __cplusplus
  43 extern "C" {
  44 #endif
  45
  46 /*
  47  * Miscellaneous ZFS constants
  48  */
  49 #define ZFS_MAXNAMELEN          MAXNAMELEN
  50 #define ZPOOL_MAXNAMELEN        MAXNAMELEN
  51 #define ZFS_MAXPROPLEN          MAXPATHLEN
  52 #define ZPOOL_MAXPROPLEN        MAXPATHLEN
  53
  54 /*
  55  * Default device paths
  56  */
  57 #define DISK_ROOT               "/dev"
  58 #define UDISK_ROOT              "/dev/disk"
  59
  60 #define DEFAULT_IMPORT_PATH_SIZE        7
  61 extern char *zpool_default_import_path[DEFAULT_IMPORT_PATH_SIZE];
  62
  63 /*
  64  * libzfs errors
  65  */
  66 typedef enum zfs_error {
  67         EZFS_SUCCESS = 0,       /* no error -- success */
  68         EZFS_NOMEM = 2000,      /* out of memory */
  69         EZFS_BADPROP,           /* invalid property value */
  70         EZFS_PROPREADONLY,      /* cannot set readonly property */
  71         EZFS_PROPTYPE,          /* property does not apply to dataset type */
  72         EZFS_PROPNONINHERIT,    /* property is not inheritable */
  73         EZFS_PROPSPACE,         /* bad quota or reservation */
  74         EZFS_BADTYPE,           /* dataset is not of appropriate type */
  75         EZFS_BUSY,              /* pool or dataset is busy */
  76         EZFS_EXISTS,            /* pool or dataset already exists */
  77         EZFS_NOENT,             /* no such pool or dataset */
  78         EZFS_BADSTREAM,         /* bad backup stream */
  79         EZFS_DSREADONLY,        /* dataset is readonly */
  80         EZFS_VOLTOOBIG,         /* volume is too large for 32-bit system */
  81         EZFS_INVALIDNAME,       /* invalid dataset name */
  82         EZFS_BADRESTORE,        /* unable to restore to destination */
  83         EZFS_BADBACKUP,         /* backup failed */
  84         EZFS_BADTARGET,         /* bad attach/detach/replace target */
  85         EZFS_NODEVICE,          /* no such device in pool */
  86         EZFS_BADDEV,            /* invalid device to add */
  87         EZFS_NOREPLICAS,        /* no valid replicas */
  88         EZFS_RESILVERING,       /* currently resilvering */
  89         EZFS_BADVERSION,        /* unsupported version */
  90         EZFS_POOLUNAVAIL,       /* pool is currently unavailable */
  91         EZFS_DEVOVERFLOW,       /* too many devices in one vdev */
  92         EZFS_BADPATH,           /* must be an absolute path */
  93         EZFS_CROSSTARGET,       /* rename or clone across pool or dataset */
  94         EZFS_ZONED,             /* used improperly in local zone */
  95         EZFS_MOUNTFAILED,       /* failed to mount dataset */
  96         EZFS_UMOUNTFAILED,      /* failed to unmount dataset */
  97         EZFS_UNSHARENFSFAILED,  /* unshare(1M) failed */
  98         EZFS_SHARENFSFAILED,    /* share(1M) failed */
  99         EZFS_PERM,              /* permission denied */
 100         EZFS_NOSPC,             /* out of space */
 101         EZFS_FAULT,             /* bad address */
 102         EZFS_IO,                /* I/O error */
 103         EZFS_INTR,              /* signal received */
 104         EZFS_ISSPARE,           /* device is a hot spare */
 105         EZFS_INVALCONFIG,       /* invalid vdev configuration */
 106         EZFS_RECURSIVE,         /* recursive dependency */
 107         EZFS_NOHISTORY,         /* no history object */
 108         EZFS_POOLPROPS,         /* couldn't retrieve pool props */
 109         EZFS_POOL_NOTSUP,       /* ops not supported for this type of pool */
 110         EZFS_POOL_INVALARG,     /* invalid argument for this pool operation */
 111         EZFS_NAMETOOLONG,       /* dataset name is too long */
 112         EZFS_OPENFAILED,        /* open of device failed */
 113         EZFS_NOCAP,             /* couldn't get capacity */
 114         EZFS_LABELFAILED,       /* write of label failed */
 115         EZFS_BADWHO,            /* invalid permission who */
 116         EZFS_BADPERM,           /* invalid permission */
 117         EZFS_BADPERMSET,        /* invalid permission set name */
 118         EZFS_NODELEGATION,      /* delegated administration is disabled */
 119         EZFS_UNSHARESMBFAILED,  /* failed to unshare over smb */
 120         EZFS_SHARESMBFAILED,    /* failed to share over smb */
 121         EZFS_BADCACHE,          /* bad cache file */
 122         EZFS_ISL2CACHE,         /* device is for the level 2 ARC */
 123         EZFS_VDEVNOTSUP,        /* unsupported vdev type */
 124         EZFS_NOTSUP,            /* ops not supported on this dataset */
 125         EZFS_ACTIVE_SPARE,      /* pool has active shared spare devices */
 126         EZFS_UNPLAYED_LOGS,     /* log device has unplayed logs */
 127         EZFS_REFTAG_RELE,       /* snapshot release: tag not found */
 128         EZFS_REFTAG_HOLD,       /* snapshot hold: tag already exists */
 129         EZFS_TAGTOOLONG,        /* snapshot hold/rele: tag too long */
 130         EZFS_PIPEFAILED,        /* pipe create failed */
 131         EZFS_THREADCREATEFAILED, /* thread create failed */
 132         EZFS_POSTSPLIT_ONLINE,  /* onlining a disk after splitting it */
 133         EZFS_SCRUBBING,         /* currently scrubbing */
 134         EZFS_NO_SCRUB,          /* no active scrub */
 135         EZFS_DIFF,              /* general failure of zfs diff */
 136         EZFS_DIFFDATA,          /* bad zfs diff data */
 137         EZFS_POOLREADONLY,      /* pool is in read-only mode */
 138         EZFS_UNKNOWN
 139 } zfs_error_t;
 140
 141 /*
 142  * The following data structures are all part
 143  * of the zfs_allow_t data structure which is
 144  * used for printing 'allow' permissions.
 145  * It is a linked list of zfs_allow_t's which
 146  * then contain avl tree's for user/group/sets/...
 147  * and each one of the entries in those trees have
 148  * avl tree's for the permissions they belong to and
 149  * whether they are local,descendent or local+descendent
 150  * permissions.  The AVL trees are used primarily for
 151  * sorting purposes, but also so that we can quickly find
 152  * a given user and or permission.
 153  */
 154 typedef struct zfs_perm_node {
 155         avl_node_t z_node;
 156         char z_pname[MAXPATHLEN];
 157 } zfs_perm_node_t;
 158
 159 typedef struct zfs_allow_node {
 160         avl_node_t z_node;
 161         char z_key[MAXPATHLEN];         /* name, such as joe */
 162         avl_tree_t z_localdescend;      /* local+descendent perms */
 163         avl_tree_t z_local;             /* local permissions */
 164         avl_tree_t z_descend;           /* descendent permissions */
 165 } zfs_allow_node_t;
 166
 167 typedef struct zfs_allow {
 168         struct zfs_allow *z_next;
 169         char z_setpoint[MAXPATHLEN];
 170         avl_tree_t z_sets;
 171         avl_tree_t z_crperms;
 172         avl_tree_t z_user;
 173         avl_tree_t z_group;
 174         avl_tree_t z_everyone;
 175 } zfs_allow_t;
 176
 177 /*
 178  * Basic handle types
 179  */
 180 typedef struct zfs_handle zfs_handle_t;
 181 typedef struct zpool_handle zpool_handle_t;
 182 typedef struct libzfs_handle libzfs_handle_t;
 183
 184 /*
 185  * Library initialization
 186  */
 187 extern libzfs_handle_t *libzfs_init(void);
 188 extern void libzfs_fini(libzfs_handle_t *);
 189
 190 extern libzfs_handle_t *zpool_get_handle(zpool_handle_t *);
 191 extern libzfs_handle_t *zfs_get_handle(zfs_handle_t *);
 192
 193 extern void libzfs_print_on_error(libzfs_handle_t *, boolean_t);
 194
 195 extern void zfs_save_arguments(int argc, char **, char *, int);
 196 extern int zpool_log_history(libzfs_handle_t *, const char *);
 197
 198 extern int libzfs_errno(libzfs_handle_t *);
 199 extern const char *libzfs_error_action(libzfs_handle_t *);
 200 extern const char *libzfs_error_description(libzfs_handle_t *);
 201 extern void libzfs_mnttab_init(libzfs_handle_t *);
 202 extern void libzfs_mnttab_fini(libzfs_handle_t *);
 203 extern void libzfs_mnttab_cache(libzfs_handle_t *, boolean_t);
 204 extern int libzfs_mnttab_find(libzfs_handle_t *, const char *,
 205     struct mnttab *);
 206 extern void libzfs_mnttab_add(libzfs_handle_t *, const char *,
 207     const char *, const char *);
 208 extern void libzfs_mnttab_remove(libzfs_handle_t *, const char *);
 209
 210 /*
 211  * Basic handle functions
 212  */
 213 extern zpool_handle_t *zpool_open(libzfs_handle_t *, const char *);
 214 extern zpool_handle_t *zpool_open_canfail(libzfs_handle_t *, const char *);
 215 extern void zpool_close(zpool_handle_t *);
 216 extern const char *zpool_get_name(zpool_handle_t *);
 217 extern int zpool_get_state(zpool_handle_t *);
 218 extern char *zpool_state_to_name(vdev_state_t, vdev_aux_t);
 219 extern const char *zpool_pool_state_to_name(pool_state_t);
 220 extern void zpool_free_handles(libzfs_handle_t *);
 221
 222 /*
 223  * Iterate over all active pools in the system.
 224  */
 225 typedef int (*zpool_iter_f)(zpool_handle_t *, void *);
 226 extern int zpool_iter(libzfs_handle_t *, zpool_iter_f, void *);
 227
 228 /*
 229  * Functions to create and destroy pools
 230  */
 231 extern int zpool_create(libzfs_handle_t *, const char *, nvlist_t *,
 232     nvlist_t *, nvlist_t *);
 233 extern int zpool_destroy(zpool_handle_t *, const char *);
 234 extern int zpool_add(zpool_handle_t *, nvlist_t *);
 235
 236 typedef struct splitflags {
 237         /* do not split, but return the config that would be split off */
 238         int dryrun : 1;
 239
 240         /* after splitting, import the pool */
 241         int import : 1;
 242 } splitflags_t;
 243
 244 /*
 245  * Functions to manipulate pool and vdev state
 246  */
 247 extern int zpool_scan(zpool_handle_t *, pool_scan_func_t);
 248 extern int zpool_clear(zpool_handle_t *, const char *, nvlist_t *);
 249 extern int zpool_reguid(zpool_handle_t *);
 250 extern int zpool_reopen(zpool_handle_t *);
 251
 252 extern int zpool_vdev_online(zpool_handle_t *, const char *, int,
 253     vdev_state_t *);
 254 extern int zpool_vdev_offline(zpool_handle_t *, const char *, boolean_t);
 255 extern int zpool_vdev_attach(zpool_handle_t *, const char *,
 256     const char *, nvlist_t *, int);
 257 extern int zpool_vdev_detach(zpool_handle_t *, const char *);
 258 extern int zpool_vdev_remove(zpool_handle_t *, const char *);
 259 extern int zpool_vdev_split(zpool_handle_t *, char *, nvlist_t **, nvlist_t *,
 260     splitflags_t);
 261
 262 extern int zpool_vdev_fault(zpool_handle_t *, uint64_t, vdev_aux_t);
 263 extern int zpool_vdev_degrade(zpool_handle_t *, uint64_t, vdev_aux_t);
 264 extern int zpool_vdev_clear(zpool_handle_t *, uint64_t);
 265
 266 extern nvlist_t *zpool_find_vdev(zpool_handle_t *, const char *, boolean_t *,
 267     boolean_t *, boolean_t *);
 268 extern nvlist_t *zpool_find_vdev_by_physpath(zpool_handle_t *, const char *,
 269     boolean_t *, boolean_t *, boolean_t *);
 270 extern int zpool_label_disk_wait(char *, int);
 271 extern int zpool_label_disk(libzfs_handle_t *, zpool_handle_t *, char *);
 272
 273 /*
 274  * Functions to manage pool properties
 275  */
 276 extern int zpool_set_prop(zpool_handle_t *, const char *, const char *);
 277 extern int zpool_get_prop(zpool_handle_t *, zpool_prop_t, char *,
 278     size_t proplen, zprop_source_t *);
 279 extern uint64_t zpool_get_prop_int(zpool_handle_t *, zpool_prop_t,
 280     zprop_source_t *);
 281
 282 extern const char *zpool_prop_to_name(zpool_prop_t);
 283 extern const char *zpool_prop_values(zpool_prop_t);
 284
 285 /*
 286  * Pool health statistics.
 287  */
 288 typedef enum {
 289         /*
 290          * The following correspond to faults as defined in the (fault.fs.zfs.*)
 291          * event namespace.  Each is associated with a corresponding message ID.
 292          */
 293         ZPOOL_STATUS_CORRUPT_CACHE,     /* corrupt /kernel/drv/zpool.cache */
 294         ZPOOL_STATUS_MISSING_DEV_R,     /* missing device with replicas */
 295         ZPOOL_STATUS_MISSING_DEV_NR,    /* missing device with no replicas */
 296         ZPOOL_STATUS_CORRUPT_LABEL_R,   /* bad device label with replicas */
 297         ZPOOL_STATUS_CORRUPT_LABEL_NR,  /* bad device label with no replicas */
 298         ZPOOL_STATUS_BAD_GUID_SUM,      /* sum of device guids didn't match */
 299         ZPOOL_STATUS_CORRUPT_POOL,      /* pool metadata is corrupted */
 300         ZPOOL_STATUS_CORRUPT_DATA,      /* data errors in user (meta)data */
 301         ZPOOL_STATUS_FAILING_DEV,       /* device experiencing errors */
 302         ZPOOL_STATUS_VERSION_NEWER,     /* newer on-disk version */
 303         ZPOOL_STATUS_HOSTID_MISMATCH,   /* last accessed by another system */
 304         ZPOOL_STATUS_IO_FAILURE_WAIT,   /* failed I/O, failmode 'wait' */
 305         ZPOOL_STATUS_IO_FAILURE_CONTINUE, /* failed I/O, failmode 'continue' */
 306         ZPOOL_STATUS_BAD_LOG,           /* cannot read log chain(s) */
 307
 308         /*
 309          * If the pool has unsupported features but can still be opened in
 310          * read-only mode, its status is ZPOOL_STATUS_UNSUP_FEAT_WRITE. If the
 311          * pool has unsupported features but cannot be opened at all, its
 312          * status is ZPOOL_STATUS_UNSUP_FEAT_READ.
 313          */
 314         ZPOOL_STATUS_UNSUP_FEAT_READ,   /* unsupported features for read */
 315         ZPOOL_STATUS_UNSUP_FEAT_WRITE,  /* unsupported features for write */
 316
 317         /*
 318          * These faults have no corresponding message ID.  At the time we are
 319          * checking the status, the original reason for the FMA fault (I/O or
 320          * checksum errors) has been lost.
 321          */
 322         ZPOOL_STATUS_FAULTED_DEV_R,     /* faulted device with replicas */
 323         ZPOOL_STATUS_FAULTED_DEV_NR,    /* faulted device with no replicas */
 324
 325         /*
 326          * The following are not faults per se, but still an error possibly
 327          * requiring administrative attention.  There is no corresponding
 328          * message ID.
 329          */
 330         ZPOOL_STATUS_VERSION_OLDER,     /* older legacy on-disk version */
 331         ZPOOL_STATUS_FEAT_DISABLED,     /* supported features are disabled */
 332         ZPOOL_STATUS_RESILVERING,       /* device being resilvered */
 333         ZPOOL_STATUS_OFFLINE_DEV,       /* device online */
 334         ZPOOL_STATUS_REMOVED_DEV,       /* removed device */
 335
 336         /*
 337          * Finally, the following indicates a healthy pool.
 338          */
 339         ZPOOL_STATUS_OK
 340 } zpool_status_t;
 341
 342 extern zpool_status_t zpool_get_status(zpool_handle_t *, char **);
 343 extern zpool_status_t zpool_import_status(nvlist_t *, char **);
 344 extern void zpool_dump_ddt(const ddt_stat_t *dds, const ddt_histogram_t *ddh);
 345
 346 /*
 347  * Statistics and configuration functions.
 348  */
 349 extern nvlist_t *zpool_get_config(zpool_handle_t *, nvlist_t **);
 350 extern nvlist_t *zpool_get_features(zpool_handle_t *);
 351 extern int zpool_refresh_stats(zpool_handle_t *, boolean_t *);
 352 extern int zpool_get_errlog(zpool_handle_t *, nvlist_t **);
 353
 354 /*
 355  * Import and export functions
 356  */
 357 extern int zpool_export(zpool_handle_t *, boolean_t, const char *);
 358 extern int zpool_export_force(zpool_handle_t *, const char *);
 359 extern int zpool_import(libzfs_handle_t *, nvlist_t *, const char *,
 360     char *altroot);
 361 extern int zpool_import_props(libzfs_handle_t *, nvlist_t *, const char *,
 362     nvlist_t *, int);
 363 extern void zpool_print_unsup_feat(nvlist_t *config);
 364
 365 /*
 366  * Search for pools to import
 367  */
 368
 369 typedef struct importargs {
 370         char **path;            /* a list of paths to search            */
 371         int paths;              /* number of paths to search            */
 372         char *poolname;         /* name of a pool to find               */
 373         uint64_t guid;          /* guid of a pool to find               */
 374         char *cachefile;        /* cachefile to use for import          */
 375         int can_be_active : 1;  /* can the pool be active?              */
 376         int unique : 1;         /* does 'poolname' already exist?       */
 377         int exists : 1;         /* set on return if pool already exists */
 378 } importargs_t;
 379
 380 extern nvlist_t *zpool_search_import(libzfs_handle_t *, importargs_t *);
 381
 382 /* legacy pool search routines */
 383 extern nvlist_t *zpool_find_import(libzfs_handle_t *, int, char **);
 384 extern nvlist_t *zpool_find_import_cached(libzfs_handle_t *, const char *,
 385     char *, uint64_t);
 386
 387 /*
 388  * Miscellaneous pool functions
 389  */
 390 struct zfs_cmd;
 391
 392 extern const char *zfs_history_event_names[];
 393
 394 extern char *zpool_vdev_name(libzfs_handle_t *, zpool_handle_t *, nvlist_t *,
 395     boolean_t verbose);
 396 extern int zpool_upgrade(zpool_handle_t *, uint64_t);
 397 extern int zpool_get_history(zpool_handle_t *, nvlist_t **);
 398 extern int zpool_history_unpack(char *, uint64_t, uint64_t *,
 399     nvlist_t ***, uint_t *);
 400 extern int zpool_events_next(libzfs_handle_t *, nvlist_t **, int *, int, int);
 401 extern int zpool_events_clear(libzfs_handle_t *, int *);
 402 extern void zpool_obj_to_path(zpool_handle_t *, uint64_t, uint64_t, char *,
 403     size_t len);
 404 extern int zfs_ioctl(libzfs_handle_t *, int, struct zfs_cmd *);
 405 extern int zpool_get_physpath(zpool_handle_t *, char *, size_t);
 406 extern void zpool_explain_recover(libzfs_handle_t *, const char *, int,
 407     nvlist_t *);
 408
 409 /*
 410  * Basic handle manipulations.  These functions do not create or destroy the
 411  * underlying datasets, only the references to them.
 412  */
 413 extern zfs_handle_t *zfs_open(libzfs_handle_t *, const char *, int);
 414 extern zfs_handle_t *zfs_handle_dup(zfs_handle_t *);
 415 extern void zfs_close(zfs_handle_t *);
 416 extern zfs_type_t zfs_get_type(const zfs_handle_t *);
 417 extern const char *zfs_get_name(const zfs_handle_t *);
 418 extern zpool_handle_t *zfs_get_pool_handle(const zfs_handle_t *);
 419
 420 /*
 421  * Property management functions.  Some functions are shared with the kernel,
 422  * and are found in sys/fs/zfs.h.
 423  */
 424
 425 /*
 426  * zfs dataset property management
 427  */
 428 extern const char *zfs_prop_default_string(zfs_prop_t);
 429 extern uint64_t zfs_prop_default_numeric(zfs_prop_t);
 430 extern const char *zfs_prop_column_name(zfs_prop_t);
 431 extern boolean_t zfs_prop_align_right(zfs_prop_t);
 432
 433 extern nvlist_t *zfs_valid_proplist(libzfs_handle_t *, zfs_type_t,
 434     nvlist_t *, uint64_t, zfs_handle_t *, const char *);
 435
 436 extern const char *zfs_prop_to_name(zfs_prop_t);
 437 extern int zfs_prop_set(zfs_handle_t *, const char *, const char *);
 438 extern int zfs_prop_get(zfs_handle_t *, zfs_prop_t, char *, size_t,
 439     zprop_source_t *, char *, size_t, boolean_t);
 440 extern int zfs_prop_get_recvd(zfs_handle_t *, const char *, char *, size_t,
 441     boolean_t);
 442 extern int zfs_prop_get_numeric(zfs_handle_t *, zfs_prop_t, uint64_t *,
 443     zprop_source_t *, char *, size_t);
 444 extern int zfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname,
 445     uint64_t *propvalue);
 446 extern int zfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname,
 447     char *propbuf, int proplen, boolean_t literal);
 448 extern int zfs_prop_get_written_int(zfs_handle_t *zhp, const char *propname,
 449     uint64_t *propvalue);
 450 extern int zfs_prop_get_written(zfs_handle_t *zhp, const char *propname,
 451     char *propbuf, int proplen, boolean_t literal);
 452 extern int zfs_prop_get_feature(zfs_handle_t *zhp, const char *propname,
 453     char *buf, size_t len);
 454 extern uint64_t getprop_uint64(zfs_handle_t *, zfs_prop_t, char **);
 455 extern uint64_t zfs_prop_get_int(zfs_handle_t *, zfs_prop_t);
 456 extern int zfs_prop_inherit(zfs_handle_t *, const char *, boolean_t);
 457 extern const char *zfs_prop_values(zfs_prop_t);
 458 extern int zfs_prop_is_string(zfs_prop_t prop);
 459 extern nvlist_t *zfs_get_user_props(zfs_handle_t *);
 460 extern nvlist_t *zfs_get_recvd_props(zfs_handle_t *);
 461 extern nvlist_t *zfs_get_clones_nvl(zfs_handle_t *);
 462
 463 typedef struct zprop_list {
 464         int             pl_prop;
 465         char            *pl_user_prop;
 466         struct zprop_list *pl_next;
 467         boolean_t       pl_all;
 468         size_t          pl_width;
 469         size_t          pl_recvd_width;
 470         boolean_t       pl_fixed;
 471 } zprop_list_t;
 472
 473 extern int zfs_expand_proplist(zfs_handle_t *, zprop_list_t **, boolean_t);
 474 extern void zfs_prune_proplist(zfs_handle_t *, uint8_t *);
 475
 476 #define ZFS_MOUNTPOINT_NONE     "none"
 477 #define ZFS_MOUNTPOINT_LEGACY   "legacy"
 478
 479 #define ZFS_FEATURE_DISABLED    "disabled"
 480 #define ZFS_FEATURE_ENABLED     "enabled"
 481 #define ZFS_FEATURE_ACTIVE      "active"
 482
 483 #define ZFS_UNSUPPORTED_INACTIVE        "inactive"
 484 #define ZFS_UNSUPPORTED_READONLY        "readonly"
 485
 486 /*
 487  * zpool property management
 488  */
 489 extern int zpool_expand_proplist(zpool_handle_t *, zprop_list_t **);
 490 extern int zpool_prop_get_feature(zpool_handle_t *, const char *, char *,
 491     size_t);
 492 extern const char *zpool_prop_default_string(zpool_prop_t);
 493 extern uint64_t zpool_prop_default_numeric(zpool_prop_t);
 494 extern const char *zpool_prop_column_name(zpool_prop_t);
 495 extern boolean_t zpool_prop_align_right(zpool_prop_t);
 496
 497 /*
 498  * Functions shared by zfs and zpool property management.
 499  */
 500 extern int zprop_iter(zprop_func func, void *cb, boolean_t show_all,
 501     boolean_t ordered, zfs_type_t type);
 502 extern int zprop_get_list(libzfs_handle_t *, char *, zprop_list_t **,
 503     zfs_type_t);
 504 extern void zprop_free_list(zprop_list_t *);
 505
 506 #define ZFS_GET_NCOLS   5
 507
 508 typedef enum {
 509         GET_COL_NONE,
 510         GET_COL_NAME,
 511         GET_COL_PROPERTY,
 512         GET_COL_VALUE,
 513         GET_COL_RECVD,
 514         GET_COL_SOURCE
 515 } zfs_get_column_t;
 516
 517 /*
 518  * Functions for printing zfs or zpool properties
 519  */
 520 typedef struct zprop_get_cbdata {
 521         int cb_sources;
 522         zfs_get_column_t cb_columns[ZFS_GET_NCOLS];
 523         int cb_colwidths[ZFS_GET_NCOLS + 1];
 524         boolean_t cb_scripted;
 525         boolean_t cb_literal;
 526         boolean_t cb_first;
 527         zprop_list_t *cb_proplist;
 528         zfs_type_t cb_type;
 529 } zprop_get_cbdata_t;
 530
 531 void zprop_print_one_property(const char *, zprop_get_cbdata_t *,
 532     const char *, const char *, zprop_source_t, const char *,
 533     const char *);
 534
 535 /*
 536  * Iterator functions.
 537  */
 538 typedef int (*zfs_iter_f)(zfs_handle_t *, void *);
 539 extern int zfs_iter_root(libzfs_handle_t *, zfs_iter_f, void *);
 540 extern int zfs_iter_children(zfs_handle_t *, zfs_iter_f, void *);
 541 extern int zfs_iter_dependents(zfs_handle_t *, boolean_t, zfs_iter_f, void *);
 542 extern int zfs_iter_filesystems(zfs_handle_t *, zfs_iter_f, void *);
 543 extern int zfs_iter_snapshots(zfs_handle_t *, boolean_t, zfs_iter_f, void *);
 544 extern int zfs_iter_snapshots_sorted(zfs_handle_t *, zfs_iter_f, void *);
 545 extern int zfs_iter_snapspec(zfs_handle_t *, const char *, zfs_iter_f, void *);
 546
 547 typedef struct get_all_cb {
 548         zfs_handle_t    **cb_handles;
 549         size_t          cb_alloc;
 550         size_t          cb_used;
 551         boolean_t       cb_verbose;
 552         int             (*cb_getone)(zfs_handle_t *, void *);
 553 } get_all_cb_t;
 554
 555 void libzfs_add_handle(get_all_cb_t *, zfs_handle_t *);
 556 int libzfs_dataset_cmp(const void *, const void *);
 557
 558 /*
 559  * Functions to create and destroy datasets.
 560  */
 561 extern int zfs_create(libzfs_handle_t *, const char *, zfs_type_t,
 562     nvlist_t *);
 563 extern int zfs_create_ancestors(libzfs_handle_t *, const char *);
 564 extern int zfs_destroy(zfs_handle_t *, boolean_t);
 565 extern int zfs_destroy_snaps(zfs_handle_t *, char *, boolean_t);
 566 extern int zfs_destroy_snaps_nvl(zfs_handle_t *, nvlist_t *, boolean_t);
 567 extern int zfs_clone(zfs_handle_t *, const char *, nvlist_t *);
 568 extern int zfs_snapshot(libzfs_handle_t *, const char *, boolean_t, nvlist_t *);
 569 extern int zfs_snapshot_nvl(libzfs_handle_t *hdl, nvlist_t *snaps,
 570     nvlist_t *props);
 571 extern int zfs_rollback(zfs_handle_t *, zfs_handle_t *, boolean_t);
 572 extern int zfs_rename(zfs_handle_t *, const char *, boolean_t, boolean_t);
 573
 574 typedef struct sendflags {
 575         /* print informational messages (ie, -v was specified) */
 576         boolean_t verbose;
 577
 578         /* recursive send  (ie, -R) */
 579         boolean_t replicate;
 580
 581         /* for incrementals, do all intermediate snapshots */
 582         boolean_t doall;
 583
 584         /* if dataset is a clone, do incremental from its origin */
 585         boolean_t fromorigin;
 586
 587         /* do deduplication */
 588         boolean_t dedup;
 589
 590         /* send properties (ie, -p) */
 591         boolean_t props;
 592
 593         /* do not send (no-op, ie. -n) */
 594         boolean_t dryrun;
 595
 596         /* parsable verbose output (ie. -P) */
 597         boolean_t parsable;
 598
 599         /* show progress (ie. -v) */
 600         boolean_t progress;
 601 } sendflags_t;
 602
 603 typedef boolean_t (snapfilter_cb_t)(zfs_handle_t *, void *);
 604
 605 extern int zfs_send(zfs_handle_t *, const char *, const char *,
 606     sendflags_t *, int, snapfilter_cb_t, void *, nvlist_t **);
 607
 608 extern int zfs_promote(zfs_handle_t *);
 609 extern int zfs_hold(zfs_handle_t *, const char *, const char *, boolean_t,
 610     boolean_t, boolean_t, int, uint64_t, uint64_t);
 611 extern int zfs_release(zfs_handle_t *, const char *, const char *, boolean_t);
 612 extern int zfs_get_holds(zfs_handle_t *, nvlist_t **);
 613 extern uint64_t zvol_volsize_to_reservation(uint64_t, nvlist_t *);
 614
 615 typedef int (*zfs_userspace_cb_t)(void *arg, const char *domain,
 616     uid_t rid, uint64_t space);
 617
 618 extern int zfs_userspace(zfs_handle_t *, zfs_userquota_prop_t,
 619     zfs_userspace_cb_t, void *);
 620
 621 extern int zfs_get_fsacl(zfs_handle_t *, nvlist_t **);
 622 extern int zfs_set_fsacl(zfs_handle_t *, boolean_t, nvlist_t *);
 623
 624 typedef struct recvflags {
 625         /* print informational messages (ie, -v was specified) */
 626         boolean_t verbose;
 627
 628         /* the destination is a prefix, not the exact fs (ie, -d) */
 629         boolean_t isprefix;
 630
 631         /*
 632          * Only the tail of the sent snapshot path is appended to the
 633          * destination to determine the received snapshot name (ie, -e).
 634          */
 635         boolean_t istail;
 636
 637         /* do not actually do the recv, just check if it would work (ie, -n) */
 638         boolean_t dryrun;
 639
 640         /* rollback/destroy filesystems as necessary (eg, -F) */
 641         boolean_t force;
 642
 643         /* set "canmount=off" on all modified filesystems */
 644         boolean_t canmountoff;
 645
 646         /* byteswap flag is used internally; callers need not specify */
 647         boolean_t byteswap;
 648
 649         /* do not mount file systems as they are extracted (private) */
 650         boolean_t nomount;
 651 } recvflags_t;
 652
 653 extern int zfs_receive(libzfs_handle_t *, const char *, recvflags_t *,
 654     int, avl_tree_t *);
 655
 656 typedef enum diff_flags {
 657         ZFS_DIFF_PARSEABLE = 0x1,
 658         ZFS_DIFF_TIMESTAMP = 0x2,
 659         ZFS_DIFF_CLASSIFY = 0x4
 660 } diff_flags_t;
 661
 662 extern int zfs_show_diffs(zfs_handle_t *, int, const char *, const char *,
 663     int);
 664
 665 /*
 666  * Miscellaneous functions.
 667  */
 668 extern const char *zfs_type_to_name(zfs_type_t);
 669 extern void zfs_refresh_properties(zfs_handle_t *);
 670 extern int zfs_name_valid(const char *, zfs_type_t);
 671 extern zfs_handle_t *zfs_path_to_zhandle(libzfs_handle_t *, char *, zfs_type_t);
 672 extern boolean_t zfs_dataset_exists(libzfs_handle_t *, const char *,
 673     zfs_type_t);
 674 extern int zfs_spa_version(zfs_handle_t *, int *);
 675 extern int zfs_append_partition(char *path, size_t max_len);
 676 extern int zfs_resolve_shortname(const char *name, char *path, size_t pathlen);
 677 extern int zfs_strcmp_pathname(char *name, char *cmp_name, int wholedisk);
 678
 679 /*
 680  * Mount support functions.
 681  */
 682 extern boolean_t is_mounted(libzfs_handle_t *, const char *special, char **);
 683 extern boolean_t zfs_is_mounted(zfs_handle_t *, char **);
 684 extern int zfs_mount(zfs_handle_t *, const char *, int);
 685 extern int zfs_unmount(zfs_handle_t *, const char *, int);
 686 extern int zfs_unmountall(zfs_handle_t *, int);
 687
 688 /*
 689  * Share support functions.
 690  */
 691 extern boolean_t zfs_is_shared(zfs_handle_t *);
 692 extern int zfs_share(zfs_handle_t *);
 693 extern int zfs_unshare(zfs_handle_t *);
 694
 695 /*
 696  * Protocol-specific share support functions.
 697  */
 698 extern boolean_t zfs_is_shared_nfs(zfs_handle_t *, char **);
 699 extern boolean_t zfs_is_shared_smb(zfs_handle_t *, char **);
 700 extern int zfs_share_nfs(zfs_handle_t *);
 701 extern int zfs_share_smb(zfs_handle_t *);
 702 extern int zfs_shareall(zfs_handle_t *);
 703 extern int zfs_unshare_nfs(zfs_handle_t *, const char *);
 704 extern int zfs_unshare_smb(zfs_handle_t *, const char *);
 705 extern int zfs_unshareall_nfs(zfs_handle_t *);
 706 extern int zfs_unshareall_smb(zfs_handle_t *);
 707 extern int zfs_unshareall_bypath(zfs_handle_t *, const char *);
 708 extern int zfs_unshareall(zfs_handle_t *);
 709 extern int zfs_deleg_share_nfs(libzfs_handle_t *, char *, char *, char *,
 710     void *, void *, int, zfs_share_op_t);
 711
 712 /*
 713  * Utility function to convert a number to a human-readable form.
 714  */
 715 extern void zfs_nicenum(uint64_t, char *, size_t);
 716 extern int zfs_nicestrtonum(libzfs_handle_t *, const char *, uint64_t *);
 717
 718 /*
 719  * Utility functions to run an external process.
 720  */
 721 #define STDOUT_VERBOSE  0x01
 722 #define STDERR_VERBOSE  0x02
 723
 724 int libzfs_run_process(const char *, char **, int flags);
 725 int libzfs_load_module(const char *);
 726
 727 /*
 728  * Given a device or file, determine if it is part of a pool.
 729  */
 730 extern int zpool_in_use(libzfs_handle_t *, int, pool_state_t *, char **,
 731     boolean_t *);
 732
 733 /*
 734  * Label manipulation.
 735  */
 736 extern int zpool_read_label(int, nvlist_t **);
 737 extern int zpool_clear_label(int);
 738
 739 /*
 740  * Management interfaces for SMB ACL files
 741  */
 742
 743 int zfs_smb_acl_add(libzfs_handle_t *, char *, char *, char *);
 744 int zfs_smb_acl_remove(libzfs_handle_t *, char *, char *, char *);
 745 int zfs_smb_acl_purge(libzfs_handle_t *, char *, char *);
 746 int zfs_smb_acl_rename(libzfs_handle_t *, char *, char *, char *, char *);
 747
 748 /*
 749  * Enable and disable datasets within a pool by mounting/unmounting and
 750  * sharing/unsharing them.
 751  */
 752 extern int zpool_enable_datasets(zpool_handle_t *, const char *, int);
 753 extern int zpool_disable_datasets(zpool_handle_t *, boolean_t);
 754
 755 /*
 756  * Mappings between vdev and FRU.
 757  */
 758 extern void libzfs_fru_refresh(libzfs_handle_t *);
 759 extern const char *libzfs_fru_lookup(libzfs_handle_t *, const char *);
 760 extern const char *libzfs_fru_devpath(libzfs_handle_t *, const char *);
 761 extern boolean_t libzfs_fru_compare(libzfs_handle_t *, const char *,
 762     const char *);
 763 extern boolean_t libzfs_fru_notself(libzfs_handle_t *, const char *);
 764 extern int zpool_fru_set(zpool_handle_t *, uint64_t, const char *);
 765
 766 #ifdef  __cplusplus
 767 }
 768 #endif
 769
 770 #endif  /* _LIBZFS_H */