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1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
4 | * The contents of this file are subject to the terms of the | |
5 | * Common Development and Distribution License (the "License"). | |
6 | * You may not use this file except in compliance with the License. | |
7 | * | |
8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 | * or http://www.opensolaris.org/os/licensing. | |
10 | * See the License for the specific language governing permissions | |
11 | * and limitations under the License. | |
12 | * | |
13 | * When distributing Covered Code, include this CDDL HEADER in each | |
14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 | * If applicable, add the following below this CDDL HEADER, with the | |
16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
21 | ||
22 | /* | |
23 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. | |
24 | * Copyright (c) 2013 by Delphix. All rights reserved. | |
25 | * Copyright (c) 2012, Joyent, Inc. All rights reserved. | |
26 | * Copyright (c) 2013 Steven Hartland. All rights reserved. | |
27 | * Copyright 2013 Nexenta Systems, Inc. All rights reserved. | |
28 | */ | |
29 | ||
30 | #ifndef _LIBZFS_H | |
31 | #define _LIBZFS_H | |
32 | ||
33 | #include <assert.h> | |
34 | #include <libnvpair.h> | |
35 | #include <sys/mnttab.h> | |
36 | #include <sys/param.h> | |
37 | #include <sys/types.h> | |
38 | #include <sys/varargs.h> | |
39 | #include <sys/fs/zfs.h> | |
40 | #include <sys/avl.h> | |
41 | #include <ucred.h> | |
42 | #include <libzfs_core.h> | |
43 | ||
44 | #ifdef __cplusplus | |
45 | extern "C" { | |
46 | #endif | |
47 | ||
48 | /* | |
49 | * Miscellaneous ZFS constants | |
50 | */ | |
51 | #define ZFS_MAXNAMELEN MAXNAMELEN | |
52 | #define ZPOOL_MAXNAMELEN MAXNAMELEN | |
53 | #define ZFS_MAXPROPLEN MAXPATHLEN | |
54 | #define ZPOOL_MAXPROPLEN MAXPATHLEN | |
55 | ||
56 | /* | |
57 | * Default device paths | |
58 | */ | |
59 | #define DISK_ROOT "/dev" | |
60 | #define UDISK_ROOT "/dev/disk" | |
61 | ||
62 | /* | |
63 | * Default wait time for a device name to be created. | |
64 | */ | |
65 | #define DISK_LABEL_WAIT (30 * 1000) /* 30 seconds */ | |
66 | ||
67 | #define DEFAULT_IMPORT_PATH_SIZE 7 | |
68 | extern char *zpool_default_import_path[DEFAULT_IMPORT_PATH_SIZE]; | |
69 | ||
70 | /* | |
71 | * libzfs errors | |
72 | */ | |
73 | typedef enum zfs_error { | |
74 | EZFS_SUCCESS = 0, /* no error -- success */ | |
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 | } zfs_error_t; | |
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 void zfs_save_arguments(int argc, char **, char *, int); | |
203 | extern int zpool_log_history(libzfs_handle_t *, const char *); | |
204 | ||
205 | extern int libzfs_errno(libzfs_handle_t *); | |
206 | extern const char *libzfs_error_init(int); | |
207 | extern const char *libzfs_error_action(libzfs_handle_t *); | |
208 | extern const char *libzfs_error_description(libzfs_handle_t *); | |
209 | extern int zfs_standard_error(libzfs_handle_t *, int, const char *); | |
210 | extern void libzfs_mnttab_init(libzfs_handle_t *); | |
211 | extern void libzfs_mnttab_fini(libzfs_handle_t *); | |
212 | extern void libzfs_mnttab_cache(libzfs_handle_t *, boolean_t); | |
213 | extern int libzfs_mnttab_find(libzfs_handle_t *, const char *, | |
214 | struct mnttab *); | |
215 | extern void libzfs_mnttab_add(libzfs_handle_t *, const char *, | |
216 | const char *, const char *); | |
217 | extern void libzfs_mnttab_remove(libzfs_handle_t *, const char *); | |
218 | ||
219 | /* | |
220 | * Basic handle functions | |
221 | */ | |
222 | extern zpool_handle_t *zpool_open(libzfs_handle_t *, const char *); | |
223 | extern zpool_handle_t *zpool_open_canfail(libzfs_handle_t *, const char *); | |
224 | extern void zpool_close(zpool_handle_t *); | |
225 | extern const char *zpool_get_name(zpool_handle_t *); | |
226 | extern int zpool_get_state(zpool_handle_t *); | |
227 | extern char *zpool_state_to_name(vdev_state_t, vdev_aux_t); | |
228 | extern const char *zpool_pool_state_to_name(pool_state_t); | |
229 | extern void zpool_free_handles(libzfs_handle_t *); | |
230 | ||
231 | /* | |
232 | * Iterate over all active pools in the system. | |
233 | */ | |
234 | typedef int (*zpool_iter_f)(zpool_handle_t *, void *); | |
235 | extern int zpool_iter(libzfs_handle_t *, zpool_iter_f, void *); | |
236 | ||
237 | /* | |
238 | * Functions to create and destroy pools | |
239 | */ | |
240 | extern int zpool_create(libzfs_handle_t *, const char *, nvlist_t *, | |
241 | nvlist_t *, nvlist_t *); | |
242 | extern int zpool_destroy(zpool_handle_t *, const char *); | |
243 | extern int zpool_add(zpool_handle_t *, nvlist_t *); | |
244 | ||
245 | typedef struct splitflags { | |
246 | /* do not split, but return the config that would be split off */ | |
247 | int dryrun : 1; | |
248 | ||
249 | /* after splitting, import the pool */ | |
250 | int import : 1; | |
251 | int name_flags; | |
252 | } splitflags_t; | |
253 | ||
254 | /* | |
255 | * Functions to manipulate pool and vdev state | |
256 | */ | |
257 | extern int zpool_scan(zpool_handle_t *, pool_scan_func_t); | |
258 | extern int zpool_clear(zpool_handle_t *, const char *, nvlist_t *); | |
259 | extern int zpool_reguid(zpool_handle_t *); | |
260 | extern int zpool_reopen(zpool_handle_t *); | |
261 | ||
262 | extern int zpool_vdev_online(zpool_handle_t *, const char *, int, | |
263 | vdev_state_t *); | |
264 | extern int zpool_vdev_offline(zpool_handle_t *, const char *, boolean_t); | |
265 | extern int zpool_vdev_attach(zpool_handle_t *, const char *, | |
266 | const char *, nvlist_t *, int); | |
267 | extern int zpool_vdev_detach(zpool_handle_t *, const char *); | |
268 | extern int zpool_vdev_remove(zpool_handle_t *, const char *); | |
269 | extern int zpool_vdev_split(zpool_handle_t *, char *, nvlist_t **, nvlist_t *, | |
270 | splitflags_t); | |
271 | ||
272 | extern int zpool_vdev_fault(zpool_handle_t *, uint64_t, vdev_aux_t); | |
273 | extern int zpool_vdev_degrade(zpool_handle_t *, uint64_t, vdev_aux_t); | |
274 | extern int zpool_vdev_clear(zpool_handle_t *, uint64_t); | |
275 | ||
276 | extern nvlist_t *zpool_find_vdev(zpool_handle_t *, const char *, boolean_t *, | |
277 | boolean_t *, boolean_t *); | |
278 | extern nvlist_t *zpool_find_vdev_by_physpath(zpool_handle_t *, const char *, | |
279 | boolean_t *, boolean_t *, boolean_t *); | |
280 | extern int zpool_label_disk_wait(char *, int); | |
281 | extern int zpool_label_disk(libzfs_handle_t *, zpool_handle_t *, char *); | |
282 | ||
283 | /* | |
284 | * Functions to manage pool properties | |
285 | */ | |
286 | extern int zpool_set_prop(zpool_handle_t *, const char *, const char *); | |
287 | extern int zpool_get_prop(zpool_handle_t *, zpool_prop_t, char *, | |
288 | size_t proplen, zprop_source_t *); | |
289 | extern int zpool_get_prop_literal(zpool_handle_t *, zpool_prop_t, char *, | |
290 | size_t proplen, zprop_source_t *, boolean_t literal); | |
291 | extern uint64_t zpool_get_prop_int(zpool_handle_t *, zpool_prop_t, | |
292 | zprop_source_t *); | |
293 | ||
294 | extern const char *zpool_prop_to_name(zpool_prop_t); | |
295 | extern const char *zpool_prop_values(zpool_prop_t); | |
296 | ||
297 | /* | |
298 | * Pool health statistics. | |
299 | */ | |
300 | typedef enum { | |
301 | /* | |
302 | * The following correspond to faults as defined in the (fault.fs.zfs.*) | |
303 | * event namespace. Each is associated with a corresponding message ID. | |
304 | */ | |
305 | ZPOOL_STATUS_CORRUPT_CACHE, /* corrupt /kernel/drv/zpool.cache */ | |
306 | ZPOOL_STATUS_MISSING_DEV_R, /* missing device with replicas */ | |
307 | ZPOOL_STATUS_MISSING_DEV_NR, /* missing device with no replicas */ | |
308 | ZPOOL_STATUS_CORRUPT_LABEL_R, /* bad device label with replicas */ | |
309 | ZPOOL_STATUS_CORRUPT_LABEL_NR, /* bad device label with no replicas */ | |
310 | ZPOOL_STATUS_BAD_GUID_SUM, /* sum of device guids didn't match */ | |
311 | ZPOOL_STATUS_CORRUPT_POOL, /* pool metadata is corrupted */ | |
312 | ZPOOL_STATUS_CORRUPT_DATA, /* data errors in user (meta)data */ | |
313 | ZPOOL_STATUS_FAILING_DEV, /* device experiencing errors */ | |
314 | ZPOOL_STATUS_VERSION_NEWER, /* newer on-disk version */ | |
315 | ZPOOL_STATUS_HOSTID_MISMATCH, /* last accessed by another system */ | |
316 | ZPOOL_STATUS_IO_FAILURE_WAIT, /* failed I/O, failmode 'wait' */ | |
317 | ZPOOL_STATUS_IO_FAILURE_CONTINUE, /* failed I/O, failmode 'continue' */ | |
318 | ZPOOL_STATUS_BAD_LOG, /* cannot read log chain(s) */ | |
319 | ZPOOL_STATUS_ERRATA, /* informational errata available */ | |
320 | ||
321 | /* | |
322 | * If the pool has unsupported features but can still be opened in | |
323 | * read-only mode, its status is ZPOOL_STATUS_UNSUP_FEAT_WRITE. If the | |
324 | * pool has unsupported features but cannot be opened at all, its | |
325 | * status is ZPOOL_STATUS_UNSUP_FEAT_READ. | |
326 | */ | |
327 | ZPOOL_STATUS_UNSUP_FEAT_READ, /* unsupported features for read */ | |
328 | ZPOOL_STATUS_UNSUP_FEAT_WRITE, /* unsupported features for write */ | |
329 | ||
330 | /* | |
331 | * These faults have no corresponding message ID. At the time we are | |
332 | * checking the status, the original reason for the FMA fault (I/O or | |
333 | * checksum errors) has been lost. | |
334 | */ | |
335 | ZPOOL_STATUS_FAULTED_DEV_R, /* faulted device with replicas */ | |
336 | ZPOOL_STATUS_FAULTED_DEV_NR, /* faulted device with no replicas */ | |
337 | ||
338 | /* | |
339 | * The following are not faults per se, but still an error possibly | |
340 | * requiring administrative attention. There is no corresponding | |
341 | * message ID. | |
342 | */ | |
343 | ZPOOL_STATUS_VERSION_OLDER, /* older legacy on-disk version */ | |
344 | ZPOOL_STATUS_FEAT_DISABLED, /* supported features are disabled */ | |
345 | ZPOOL_STATUS_RESILVERING, /* device being resilvered */ | |
346 | ZPOOL_STATUS_OFFLINE_DEV, /* device online */ | |
347 | ZPOOL_STATUS_REMOVED_DEV, /* removed device */ | |
348 | ||
349 | /* | |
350 | * Finally, the following indicates a healthy pool. | |
351 | */ | |
352 | ZPOOL_STATUS_OK | |
353 | } zpool_status_t; | |
354 | ||
355 | extern unsigned long get_system_hostid(void); | |
356 | extern zpool_status_t zpool_get_status(zpool_handle_t *, char **, | |
357 | zpool_errata_t *); | |
358 | extern zpool_status_t zpool_import_status(nvlist_t *, char **, | |
359 | zpool_errata_t *); | |
360 | extern void zpool_dump_ddt(const ddt_stat_t *dds, const ddt_histogram_t *ddh); | |
361 | ||
362 | /* | |
363 | * Statistics and configuration functions. | |
364 | */ | |
365 | extern nvlist_t *zpool_get_config(zpool_handle_t *, nvlist_t **); | |
366 | extern nvlist_t *zpool_get_features(zpool_handle_t *); | |
367 | extern int zpool_refresh_stats(zpool_handle_t *, boolean_t *); | |
368 | extern int zpool_get_errlog(zpool_handle_t *, nvlist_t **); | |
369 | ||
370 | /* | |
371 | * Import and export functions | |
372 | */ | |
373 | extern int zpool_export(zpool_handle_t *, boolean_t, const char *); | |
374 | extern int zpool_export_force(zpool_handle_t *, const char *); | |
375 | extern int zpool_import(libzfs_handle_t *, nvlist_t *, const char *, | |
376 | char *altroot); | |
377 | extern int zpool_import_props(libzfs_handle_t *, nvlist_t *, const char *, | |
378 | nvlist_t *, int); | |
379 | extern void zpool_print_unsup_feat(nvlist_t *config); | |
380 | ||
381 | /* | |
382 | * Search for pools to import | |
383 | */ | |
384 | ||
385 | typedef struct importargs { | |
386 | char **path; /* a list of paths to search */ | |
387 | int paths; /* number of paths to search */ | |
388 | char *poolname; /* name of a pool to find */ | |
389 | uint64_t guid; /* guid of a pool to find */ | |
390 | char *cachefile; /* cachefile to use for import */ | |
391 | int can_be_active : 1; /* can the pool be active? */ | |
392 | int unique : 1; /* does 'poolname' already exist? */ | |
393 | int exists : 1; /* set on return if pool already exists */ | |
394 | } importargs_t; | |
395 | ||
396 | extern nvlist_t *zpool_search_import(libzfs_handle_t *, importargs_t *); | |
397 | ||
398 | /* legacy pool search routines */ | |
399 | extern nvlist_t *zpool_find_import(libzfs_handle_t *, int, char **); | |
400 | extern nvlist_t *zpool_find_import_cached(libzfs_handle_t *, const char *, | |
401 | char *, uint64_t); | |
402 | ||
403 | /* | |
404 | * Miscellaneous pool functions | |
405 | */ | |
406 | struct zfs_cmd; | |
407 | ||
408 | extern const char *zfs_history_event_names[]; | |
409 | ||
410 | typedef enum { | |
411 | VDEV_NAME_PATH = 1 << 0, | |
412 | VDEV_NAME_GUID = 1 << 1, | |
413 | VDEV_NAME_FOLLOW_LINKS = 1 << 2, | |
414 | VDEV_NAME_TYPE_ID = 1 << 3, | |
415 | } vdev_name_t; | |
416 | ||
417 | extern char *zpool_vdev_name(libzfs_handle_t *, zpool_handle_t *, nvlist_t *, | |
418 | int name_flags); | |
419 | extern int zpool_upgrade(zpool_handle_t *, uint64_t); | |
420 | extern int zpool_get_history(zpool_handle_t *, nvlist_t **); | |
421 | extern int zpool_history_unpack(char *, uint64_t, uint64_t *, | |
422 | nvlist_t ***, uint_t *); | |
423 | extern int zpool_events_next(libzfs_handle_t *, nvlist_t **, int *, unsigned, | |
424 | int); | |
425 | extern int zpool_events_clear(libzfs_handle_t *, int *); | |
426 | extern int zpool_events_seek(libzfs_handle_t *, uint64_t, int); | |
427 | extern void zpool_obj_to_path(zpool_handle_t *, uint64_t, uint64_t, char *, | |
428 | size_t len); | |
429 | extern int zfs_ioctl(libzfs_handle_t *, int, struct zfs_cmd *); | |
430 | extern int zpool_get_physpath(zpool_handle_t *, char *, size_t); | |
431 | extern void zpool_explain_recover(libzfs_handle_t *, const char *, int, | |
432 | nvlist_t *); | |
433 | ||
434 | /* | |
435 | * Basic handle manipulations. These functions do not create or destroy the | |
436 | * underlying datasets, only the references to them. | |
437 | */ | |
438 | extern zfs_handle_t *zfs_open(libzfs_handle_t *, const char *, int); | |
439 | extern zfs_handle_t *zfs_handle_dup(zfs_handle_t *); | |
440 | extern void zfs_close(zfs_handle_t *); | |
441 | extern zfs_type_t zfs_get_type(const zfs_handle_t *); | |
442 | extern const char *zfs_get_name(const zfs_handle_t *); | |
443 | extern zpool_handle_t *zfs_get_pool_handle(const zfs_handle_t *); | |
444 | ||
445 | /* | |
446 | * Property management functions. Some functions are shared with the kernel, | |
447 | * and are found in sys/fs/zfs.h. | |
448 | */ | |
449 | ||
450 | /* | |
451 | * zfs dataset property management | |
452 | */ | |
453 | extern const char *zfs_prop_default_string(zfs_prop_t); | |
454 | extern uint64_t zfs_prop_default_numeric(zfs_prop_t); | |
455 | extern const char *zfs_prop_column_name(zfs_prop_t); | |
456 | extern boolean_t zfs_prop_align_right(zfs_prop_t); | |
457 | ||
458 | extern nvlist_t *zfs_valid_proplist(libzfs_handle_t *, zfs_type_t, | |
459 | nvlist_t *, uint64_t, zfs_handle_t *, const char *); | |
460 | ||
461 | extern const char *zfs_prop_to_name(zfs_prop_t); | |
462 | extern int zfs_prop_set(zfs_handle_t *, const char *, const char *); | |
463 | extern int zfs_prop_get(zfs_handle_t *, zfs_prop_t, char *, size_t, | |
464 | zprop_source_t *, char *, size_t, boolean_t); | |
465 | extern int zfs_prop_get_recvd(zfs_handle_t *, const char *, char *, size_t, | |
466 | boolean_t); | |
467 | extern int zfs_prop_get_numeric(zfs_handle_t *, zfs_prop_t, uint64_t *, | |
468 | zprop_source_t *, char *, size_t); | |
469 | extern int zfs_prop_get_userquota_int(zfs_handle_t *zhp, const char *propname, | |
470 | uint64_t *propvalue); | |
471 | extern int zfs_prop_get_userquota(zfs_handle_t *zhp, const char *propname, | |
472 | char *propbuf, int proplen, boolean_t literal); | |
473 | extern int zfs_prop_get_written_int(zfs_handle_t *zhp, const char *propname, | |
474 | uint64_t *propvalue); | |
475 | extern int zfs_prop_get_written(zfs_handle_t *zhp, const char *propname, | |
476 | char *propbuf, int proplen, boolean_t literal); | |
477 | extern int zfs_prop_get_feature(zfs_handle_t *zhp, const char *propname, | |
478 | char *buf, size_t len); | |
479 | extern uint64_t getprop_uint64(zfs_handle_t *, zfs_prop_t, char **); | |
480 | extern uint64_t zfs_prop_get_int(zfs_handle_t *, zfs_prop_t); | |
481 | extern int zfs_prop_inherit(zfs_handle_t *, const char *, boolean_t); | |
482 | extern const char *zfs_prop_values(zfs_prop_t); | |
483 | extern int zfs_prop_is_string(zfs_prop_t prop); | |
484 | extern nvlist_t *zfs_get_user_props(zfs_handle_t *); | |
485 | extern nvlist_t *zfs_get_recvd_props(zfs_handle_t *); | |
486 | extern nvlist_t *zfs_get_clones_nvl(zfs_handle_t *); | |
487 | ||
488 | typedef struct zprop_list { | |
489 | int pl_prop; | |
490 | char *pl_user_prop; | |
491 | struct zprop_list *pl_next; | |
492 | boolean_t pl_all; | |
493 | size_t pl_width; | |
494 | size_t pl_recvd_width; | |
495 | boolean_t pl_fixed; | |
496 | } zprop_list_t; | |
497 | ||
498 | extern int zfs_expand_proplist(zfs_handle_t *, zprop_list_t **, boolean_t, | |
499 | boolean_t); | |
500 | extern void zfs_prune_proplist(zfs_handle_t *, uint8_t *); | |
501 | ||
502 | #define ZFS_MOUNTPOINT_NONE "none" | |
503 | #define ZFS_MOUNTPOINT_LEGACY "legacy" | |
504 | ||
505 | #define ZFS_FEATURE_DISABLED "disabled" | |
506 | #define ZFS_FEATURE_ENABLED "enabled" | |
507 | #define ZFS_FEATURE_ACTIVE "active" | |
508 | ||
509 | #define ZFS_UNSUPPORTED_INACTIVE "inactive" | |
510 | #define ZFS_UNSUPPORTED_READONLY "readonly" | |
511 | ||
512 | /* | |
513 | * zpool property management | |
514 | */ | |
515 | extern int zpool_expand_proplist(zpool_handle_t *, zprop_list_t **); | |
516 | extern int zpool_prop_get_feature(zpool_handle_t *, const char *, char *, | |
517 | size_t); | |
518 | extern const char *zpool_prop_default_string(zpool_prop_t); | |
519 | extern uint64_t zpool_prop_default_numeric(zpool_prop_t); | |
520 | extern const char *zpool_prop_column_name(zpool_prop_t); | |
521 | extern boolean_t zpool_prop_align_right(zpool_prop_t); | |
522 | ||
523 | /* | |
524 | * Functions shared by zfs and zpool property management. | |
525 | */ | |
526 | extern int zprop_iter(zprop_func func, void *cb, boolean_t show_all, | |
527 | boolean_t ordered, zfs_type_t type); | |
528 | extern int zprop_get_list(libzfs_handle_t *, char *, zprop_list_t **, | |
529 | zfs_type_t); | |
530 | extern void zprop_free_list(zprop_list_t *); | |
531 | ||
532 | #define ZFS_GET_NCOLS 5 | |
533 | ||
534 | typedef enum { | |
535 | GET_COL_NONE, | |
536 | GET_COL_NAME, | |
537 | GET_COL_PROPERTY, | |
538 | GET_COL_VALUE, | |
539 | GET_COL_RECVD, | |
540 | GET_COL_SOURCE | |
541 | } zfs_get_column_t; | |
542 | ||
543 | /* | |
544 | * Functions for printing zfs or zpool properties | |
545 | */ | |
546 | typedef struct zprop_get_cbdata { | |
547 | int cb_sources; | |
548 | zfs_get_column_t cb_columns[ZFS_GET_NCOLS]; | |
549 | int cb_colwidths[ZFS_GET_NCOLS + 1]; | |
550 | boolean_t cb_scripted; | |
551 | boolean_t cb_literal; | |
552 | boolean_t cb_first; | |
553 | zprop_list_t *cb_proplist; | |
554 | zfs_type_t cb_type; | |
555 | } zprop_get_cbdata_t; | |
556 | ||
557 | void zprop_print_one_property(const char *, zprop_get_cbdata_t *, | |
558 | const char *, const char *, zprop_source_t, const char *, | |
559 | const char *); | |
560 | ||
561 | /* | |
562 | * Iterator functions. | |
563 | */ | |
564 | typedef int (*zfs_iter_f)(zfs_handle_t *, void *); | |
565 | extern int zfs_iter_root(libzfs_handle_t *, zfs_iter_f, void *); | |
566 | extern int zfs_iter_children(zfs_handle_t *, zfs_iter_f, void *); | |
567 | extern int zfs_iter_dependents(zfs_handle_t *, boolean_t, zfs_iter_f, void *); | |
568 | extern int zfs_iter_filesystems(zfs_handle_t *, zfs_iter_f, void *); | |
569 | extern int zfs_iter_snapshots(zfs_handle_t *, boolean_t, zfs_iter_f, void *); | |
570 | extern int zfs_iter_snapshots_sorted(zfs_handle_t *, zfs_iter_f, void *); | |
571 | extern int zfs_iter_snapspec(zfs_handle_t *, const char *, zfs_iter_f, void *); | |
572 | extern int zfs_iter_bookmarks(zfs_handle_t *, zfs_iter_f, void *); | |
573 | ||
574 | typedef struct get_all_cb { | |
575 | zfs_handle_t **cb_handles; | |
576 | size_t cb_alloc; | |
577 | size_t cb_used; | |
578 | boolean_t cb_verbose; | |
579 | int (*cb_getone)(zfs_handle_t *, void *); | |
580 | } get_all_cb_t; | |
581 | ||
582 | void libzfs_add_handle(get_all_cb_t *, zfs_handle_t *); | |
583 | int libzfs_dataset_cmp(const void *, const void *); | |
584 | ||
585 | /* | |
586 | * Functions to create and destroy datasets. | |
587 | */ | |
588 | extern int zfs_create(libzfs_handle_t *, const char *, zfs_type_t, | |
589 | nvlist_t *); | |
590 | extern int zfs_create_ancestors(libzfs_handle_t *, const char *); | |
591 | extern int zfs_destroy(zfs_handle_t *, boolean_t); | |
592 | extern int zfs_destroy_snaps(zfs_handle_t *, char *, boolean_t); | |
593 | extern int zfs_destroy_snaps_nvl(libzfs_handle_t *, nvlist_t *, boolean_t); | |
594 | extern int zfs_clone(zfs_handle_t *, const char *, nvlist_t *); | |
595 | extern int zfs_snapshot(libzfs_handle_t *, const char *, boolean_t, nvlist_t *); | |
596 | extern int zfs_snapshot_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, | |
597 | nvlist_t *props); | |
598 | extern int zfs_rollback(zfs_handle_t *, zfs_handle_t *, boolean_t); | |
599 | extern int zfs_rename(zfs_handle_t *, const char *, boolean_t, boolean_t); | |
600 | ||
601 | typedef struct sendflags { | |
602 | /* print informational messages (ie, -v was specified) */ | |
603 | boolean_t verbose; | |
604 | ||
605 | /* recursive send (ie, -R) */ | |
606 | boolean_t replicate; | |
607 | ||
608 | /* for incrementals, do all intermediate snapshots */ | |
609 | boolean_t doall; | |
610 | ||
611 | /* if dataset is a clone, do incremental from its origin */ | |
612 | boolean_t fromorigin; | |
613 | ||
614 | /* do deduplication */ | |
615 | boolean_t dedup; | |
616 | ||
617 | /* send properties (ie, -p) */ | |
618 | boolean_t props; | |
619 | ||
620 | /* do not send (no-op, ie. -n) */ | |
621 | boolean_t dryrun; | |
622 | ||
623 | /* parsable verbose output (ie. -P) */ | |
624 | boolean_t parsable; | |
625 | ||
626 | /* show progress (ie. -v) */ | |
627 | boolean_t progress; | |
628 | ||
629 | /* large blocks (>128K) are permitted */ | |
630 | boolean_t largeblock; | |
631 | ||
632 | /* WRITE_EMBEDDED records of type DATA are permitted */ | |
633 | boolean_t embed_data; | |
634 | } sendflags_t; | |
635 | ||
636 | typedef boolean_t (snapfilter_cb_t)(zfs_handle_t *, void *); | |
637 | ||
638 | extern int zfs_send(zfs_handle_t *, const char *, const char *, | |
639 | sendflags_t *, int, snapfilter_cb_t, void *, nvlist_t **); | |
640 | extern int zfs_send_one(zfs_handle_t *, const char *, int, enum lzc_send_flags); | |
641 | ||
642 | extern int zfs_promote(zfs_handle_t *); | |
643 | extern int zfs_hold(zfs_handle_t *, const char *, const char *, | |
644 | boolean_t, int); | |
645 | extern int zfs_hold_nvl(zfs_handle_t *, int, nvlist_t *); | |
646 | extern int zfs_release(zfs_handle_t *, const char *, const char *, boolean_t); | |
647 | extern int zfs_get_holds(zfs_handle_t *, nvlist_t **); | |
648 | extern uint64_t zvol_volsize_to_reservation(uint64_t, nvlist_t *); | |
649 | ||
650 | typedef int (*zfs_userspace_cb_t)(void *arg, const char *domain, | |
651 | uid_t rid, uint64_t space); | |
652 | ||
653 | extern int zfs_userspace(zfs_handle_t *, zfs_userquota_prop_t, | |
654 | zfs_userspace_cb_t, void *); | |
655 | ||
656 | extern int zfs_get_fsacl(zfs_handle_t *, nvlist_t **); | |
657 | extern int zfs_set_fsacl(zfs_handle_t *, boolean_t, nvlist_t *); | |
658 | ||
659 | typedef struct recvflags { | |
660 | /* print informational messages (ie, -v was specified) */ | |
661 | boolean_t verbose; | |
662 | ||
663 | /* the destination is a prefix, not the exact fs (ie, -d) */ | |
664 | boolean_t isprefix; | |
665 | ||
666 | /* | |
667 | * Only the tail of the sent snapshot path is appended to the | |
668 | * destination to determine the received snapshot name (ie, -e). | |
669 | */ | |
670 | boolean_t istail; | |
671 | ||
672 | /* do not actually do the recv, just check if it would work (ie, -n) */ | |
673 | boolean_t dryrun; | |
674 | ||
675 | /* rollback/destroy filesystems as necessary (eg, -F) */ | |
676 | boolean_t force; | |
677 | ||
678 | /* set "canmount=off" on all modified filesystems */ | |
679 | boolean_t canmountoff; | |
680 | ||
681 | /* byteswap flag is used internally; callers need not specify */ | |
682 | boolean_t byteswap; | |
683 | ||
684 | /* do not mount file systems as they are extracted (private) */ | |
685 | boolean_t nomount; | |
686 | } recvflags_t; | |
687 | ||
688 | extern int zfs_receive(libzfs_handle_t *, const char *, recvflags_t *, | |
689 | int, avl_tree_t *); | |
690 | ||
691 | typedef enum diff_flags { | |
692 | ZFS_DIFF_PARSEABLE = 0x1, | |
693 | ZFS_DIFF_TIMESTAMP = 0x2, | |
694 | ZFS_DIFF_CLASSIFY = 0x4 | |
695 | } diff_flags_t; | |
696 | ||
697 | extern int zfs_show_diffs(zfs_handle_t *, int, const char *, const char *, | |
698 | int); | |
699 | ||
700 | /* | |
701 | * Miscellaneous functions. | |
702 | */ | |
703 | extern const char *zfs_type_to_name(zfs_type_t); | |
704 | extern void zfs_refresh_properties(zfs_handle_t *); | |
705 | extern int zfs_name_valid(const char *, zfs_type_t); | |
706 | extern zfs_handle_t *zfs_path_to_zhandle(libzfs_handle_t *, char *, zfs_type_t); | |
707 | extern boolean_t zfs_dataset_exists(libzfs_handle_t *, const char *, | |
708 | zfs_type_t); | |
709 | extern int zfs_spa_version(zfs_handle_t *, int *); | |
710 | extern boolean_t zfs_bookmark_exists(const char *path); | |
711 | extern int zfs_append_partition(char *path, size_t max_len); | |
712 | extern int zfs_resolve_shortname(const char *name, char *path, size_t pathlen); | |
713 | extern int zfs_strcmp_pathname(char *name, char *cmp_name, int wholedisk); | |
714 | ||
715 | /* | |
716 | * Mount support functions. | |
717 | */ | |
718 | extern boolean_t is_mounted(libzfs_handle_t *, const char *special, char **); | |
719 | extern boolean_t zfs_is_mounted(zfs_handle_t *, char **); | |
720 | extern int zfs_mount(zfs_handle_t *, const char *, int); | |
721 | extern int zfs_unmount(zfs_handle_t *, const char *, int); | |
722 | extern int zfs_unmountall(zfs_handle_t *, int); | |
723 | ||
724 | /* | |
725 | * Share support functions. | |
726 | */ | |
727 | extern boolean_t zfs_is_shared(zfs_handle_t *); | |
728 | extern int zfs_share(zfs_handle_t *); | |
729 | extern int zfs_unshare(zfs_handle_t *); | |
730 | ||
731 | /* | |
732 | * Protocol-specific share support functions. | |
733 | */ | |
734 | extern boolean_t zfs_is_shared_nfs(zfs_handle_t *, char **); | |
735 | extern boolean_t zfs_is_shared_smb(zfs_handle_t *, char **); | |
736 | extern int zfs_share_nfs(zfs_handle_t *); | |
737 | extern int zfs_share_smb(zfs_handle_t *); | |
738 | extern int zfs_shareall(zfs_handle_t *); | |
739 | extern int zfs_unshare_nfs(zfs_handle_t *, const char *); | |
740 | extern int zfs_unshare_smb(zfs_handle_t *, const char *); | |
741 | extern int zfs_unshareall_nfs(zfs_handle_t *); | |
742 | extern int zfs_unshareall_smb(zfs_handle_t *); | |
743 | extern int zfs_unshareall_bypath(zfs_handle_t *, const char *); | |
744 | extern int zfs_unshareall(zfs_handle_t *); | |
745 | extern int zfs_deleg_share_nfs(libzfs_handle_t *, char *, char *, char *, | |
746 | void *, void *, int, zfs_share_op_t); | |
747 | ||
748 | /* | |
749 | * Utility function to convert a number to a human-readable form. | |
750 | */ | |
751 | extern void zfs_nicenum(uint64_t, char *, size_t); | |
752 | extern int zfs_nicestrtonum(libzfs_handle_t *, const char *, uint64_t *); | |
753 | ||
754 | /* | |
755 | * Utility functions to run an external process. | |
756 | */ | |
757 | #define STDOUT_VERBOSE 0x01 | |
758 | #define STDERR_VERBOSE 0x02 | |
759 | ||
760 | int libzfs_run_process(const char *, char **, int flags); | |
761 | ||
762 | /* | |
763 | * Given a device or file, determine if it is part of a pool. | |
764 | */ | |
765 | extern int zpool_in_use(libzfs_handle_t *, int, pool_state_t *, char **, | |
766 | boolean_t *); | |
767 | ||
768 | /* | |
769 | * Label manipulation. | |
770 | */ | |
771 | extern int zpool_read_label(int, nvlist_t **, int *); | |
772 | extern int zpool_clear_label(int); | |
773 | ||
774 | /* | |
775 | * Management interfaces for SMB ACL files | |
776 | */ | |
777 | ||
778 | int zfs_smb_acl_add(libzfs_handle_t *, char *, char *, char *); | |
779 | int zfs_smb_acl_remove(libzfs_handle_t *, char *, char *, char *); | |
780 | int zfs_smb_acl_purge(libzfs_handle_t *, char *, char *); | |
781 | int zfs_smb_acl_rename(libzfs_handle_t *, char *, char *, char *, char *); | |
782 | ||
783 | /* | |
784 | * Enable and disable datasets within a pool by mounting/unmounting and | |
785 | * sharing/unsharing them. | |
786 | */ | |
787 | extern int zpool_enable_datasets(zpool_handle_t *, const char *, int); | |
788 | extern int zpool_disable_datasets(zpool_handle_t *, boolean_t); | |
789 | ||
790 | /* | |
791 | * Mappings between vdev and FRU. | |
792 | */ | |
793 | extern void libzfs_fru_refresh(libzfs_handle_t *); | |
794 | extern const char *libzfs_fru_lookup(libzfs_handle_t *, const char *); | |
795 | extern const char *libzfs_fru_devpath(libzfs_handle_t *, const char *); | |
796 | extern boolean_t libzfs_fru_compare(libzfs_handle_t *, const char *, | |
797 | const char *); | |
798 | extern boolean_t libzfs_fru_notself(libzfs_handle_t *, const char *); | |
799 | extern int zpool_fru_set(zpool_handle_t *, uint64_t, const char *); | |
800 | ||
801 | #ifdef __cplusplus | |
802 | } | |
803 | #endif | |
804 | ||
805 | #endif /* _LIBZFS_H */ |