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