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34dc7c2f BB |
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 | /* | |
572e2857 | 22 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
8d103d88 | 23 | * Copyright (c) 2012, 2017 by Delphix. All rights reserved. |
b607405f | 24 | * Copyright 2016 RackTop Systems. |
0241e491 | 25 | * Copyright (c) 2017, Intel Corporation. |
34dc7c2f BB |
26 | */ |
27 | ||
28 | #ifndef _SYS_ZFS_IOCTL_H | |
29 | #define _SYS_ZFS_IOCTL_H | |
30 | ||
34dc7c2f BB |
31 | #include <sys/cred.h> |
32 | #include <sys/dmu.h> | |
33 | #include <sys/zio.h> | |
34 | #include <sys/dsl_deleg.h> | |
428870ff | 35 | #include <sys/spa.h> |
572e2857 | 36 | #include <sys/zfs_stat.h> |
34dc7c2f BB |
37 | |
38 | #ifdef _KERNEL | |
39 | #include <sys/nvpair.h> | |
40 | #endif /* _KERNEL */ | |
41 | ||
42 | #ifdef __cplusplus | |
43 | extern "C" { | |
44 | #endif | |
45 | ||
6f1ffb06 MA |
46 | /* |
47 | * The structures in this file are passed between userland and the | |
48 | * kernel. Userland may be running a 32-bit process, while the kernel | |
49 | * is 64-bit. Therefore, these structures need to compile the same in | |
50 | * 32-bit and 64-bit. This means not using type "long", and adding | |
51 | * explicit padding so that the 32-bit structure will not be packed more | |
52 | * tightly than the 64-bit structure (which requires 64-bit alignment). | |
53 | */ | |
54 | ||
34dc7c2f BB |
55 | /* |
56 | * Property values for snapdir | |
57 | */ | |
58 | #define ZFS_SNAPDIR_HIDDEN 0 | |
59 | #define ZFS_SNAPDIR_VISIBLE 1 | |
60 | ||
0b4d1b58 ED |
61 | /* |
62 | * Property values for snapdev | |
63 | */ | |
64 | #define ZFS_SNAPDEV_HIDDEN 0 | |
65 | #define ZFS_SNAPDEV_VISIBLE 1 | |
023699cd MM |
66 | /* |
67 | * Property values for acltype | |
68 | */ | |
69 | #define ZFS_ACLTYPE_OFF 0 | |
70 | #define ZFS_ACLTYPE_POSIXACL 1 | |
0b4d1b58 | 71 | |
428870ff BB |
72 | /* |
73 | * Field manipulation macros for the drr_versioninfo field of the | |
74 | * send stream header. | |
75 | */ | |
76 | ||
77 | /* | |
78 | * Header types for zfs send streams. | |
79 | */ | |
80 | typedef enum drr_headertype { | |
81 | DMU_SUBSTREAM = 0x1, | |
82 | DMU_COMPOUNDSTREAM = 0x2 | |
83 | } drr_headertype_t; | |
84 | ||
85 | #define DMU_GET_STREAM_HDRTYPE(vi) BF64_GET((vi), 0, 2) | |
86 | #define DMU_SET_STREAM_HDRTYPE(vi, x) BF64_SET((vi), 0, 2, x) | |
87 | ||
88 | #define DMU_GET_FEATUREFLAGS(vi) BF64_GET((vi), 2, 30) | |
89 | #define DMU_SET_FEATUREFLAGS(vi, x) BF64_SET((vi), 2, 30, x) | |
90 | ||
91 | /* | |
92 | * Feature flags for zfs send streams (flags in drr_versioninfo) | |
93 | */ | |
94 | ||
47dfff3b MA |
95 | #define DMU_BACKUP_FEATURE_DEDUP (1 << 0) |
96 | #define DMU_BACKUP_FEATURE_DEDUPPROPS (1 << 1) | |
97 | #define DMU_BACKUP_FEATURE_SA_SPILL (1 << 2) | |
9b67f605 | 98 | /* flags #3 - #15 are reserved for incompatible closed-source implementations */ |
47dfff3b | 99 | #define DMU_BACKUP_FEATURE_EMBED_DATA (1 << 16) |
2aa34383 | 100 | #define DMU_BACKUP_FEATURE_LZ4 (1 << 17) |
f1512ee6 | 101 | /* flag #18 is reserved for a Delphix feature */ |
47dfff3b MA |
102 | #define DMU_BACKUP_FEATURE_LARGE_BLOCKS (1 << 19) |
103 | #define DMU_BACKUP_FEATURE_RESUMING (1 << 20) | |
caf9dd20 | 104 | /* flag #21 is reserved for the redacted send/receive feature */ |
2aa34383 | 105 | #define DMU_BACKUP_FEATURE_COMPRESSED (1 << 22) |
a9f0d7dd | 106 | #define DMU_BACKUP_FEATURE_LARGE_DNODE (1 << 23) |
b5256303 | 107 | #define DMU_BACKUP_FEATURE_RAW (1 << 24) |
29445fe3 | 108 | /* flag #25 is reserved for the ZSTD compression feature */ |
9c5e88b1 | 109 | #define DMU_BACKUP_FEATURE_HOLDS (1 << 26) |
428870ff BB |
110 | |
111 | /* | |
112 | * Mask of all supported backup features | |
113 | */ | |
114 | #define DMU_BACKUP_FEATURE_MASK (DMU_BACKUP_FEATURE_DEDUP | \ | |
9b67f605 | 115 | DMU_BACKUP_FEATURE_DEDUPPROPS | DMU_BACKUP_FEATURE_SA_SPILL | \ |
2aa34383 | 116 | DMU_BACKUP_FEATURE_EMBED_DATA | DMU_BACKUP_FEATURE_LZ4 | \ |
47dfff3b | 117 | DMU_BACKUP_FEATURE_RESUMING | DMU_BACKUP_FEATURE_LARGE_BLOCKS | \ |
b5256303 | 118 | DMU_BACKUP_FEATURE_COMPRESSED | DMU_BACKUP_FEATURE_LARGE_DNODE | \ |
9c5e88b1 | 119 | DMU_BACKUP_FEATURE_RAW | DMU_BACKUP_FEATURE_HOLDS) |
428870ff BB |
120 | |
121 | /* Are all features in the given flag word currently supported? */ | |
122 | #define DMU_STREAM_SUPPORTED(x) (!((x) & ~DMU_BACKUP_FEATURE_MASK)) | |
123 | ||
47dfff3b MA |
124 | typedef enum dmu_send_resume_token_version { |
125 | ZFS_SEND_RESUME_TOKEN_VERSION = 1 | |
126 | } dmu_send_resume_token_version_t; | |
127 | ||
428870ff BB |
128 | /* |
129 | * The drr_versioninfo field of the dmu_replay_record has the | |
130 | * following layout: | |
131 | * | |
132 | * 64 56 48 40 32 24 16 8 0 | |
133 | * +-------+-------+-------+-------+-------+-------+-------+-------+ | |
caf9dd20 | 134 | * | reserved | feature-flags |C|S| |
428870ff BB |
135 | * +-------+-------+-------+-------+-------+-------+-------+-------+ |
136 | * | |
137 | * The low order two bits indicate the header type: SUBSTREAM (0x1) | |
138 | * or COMPOUNDSTREAM (0x2). Using two bits for this is historical: | |
139 | * this field used to be a version number, where the two version types | |
140 | * were 1 and 2. Using two bits for this allows earlier versions of | |
141 | * the code to be able to recognize send streams that don't use any | |
142 | * of the features indicated by feature flags. | |
143 | */ | |
144 | ||
34dc7c2f BB |
145 | #define DMU_BACKUP_MAGIC 0x2F5bacbacULL |
146 | ||
b607405f AS |
147 | /* |
148 | * Send stream flags. Bits 24-31 are reserved for vendor-specific | |
149 | * implementations and should not be used. | |
150 | */ | |
34dc7c2f BB |
151 | #define DRR_FLAG_CLONE (1<<0) |
152 | #define DRR_FLAG_CI_DATA (1<<1) | |
e6d3a843 PD |
153 | /* |
154 | * This send stream, if it is a full send, includes the FREE and FREEOBJECT | |
155 | * records that are created by the sending process. This means that the send | |
156 | * stream can be received as a clone, even though it is not an incremental. | |
157 | * This is not implemented as a feature flag, because the receiving side does | |
158 | * not need to have implemented it to receive this stream; it is fully backwards | |
159 | * compatible. We need a flag, though, because full send streams without it | |
160 | * cannot necessarily be received as a clone correctly. | |
161 | */ | |
162 | #define DRR_FLAG_FREERECORDS (1<<2) | |
caf9dd20 BB |
163 | /* |
164 | * When DRR_FLAG_SPILL_BLOCK is set it indicates the DRR_OBJECT_SPILL | |
165 | * and DRR_SPILL_UNMODIFIED flags are meaningful in the send stream. | |
166 | * | |
167 | * When DRR_FLAG_SPILL_BLOCK is set, DRR_OBJECT records will have | |
168 | * DRR_OBJECT_SPILL set if and only if they should have a spill block | |
169 | * (either an existing one, or a new one in the send stream). When clear | |
170 | * the object does not have a spill block and any existing spill block | |
171 | * should be freed. | |
172 | * | |
173 | * Similarly, when DRR_FLAG_SPILL_BLOCK is set, DRR_SPILL records will | |
174 | * have DRR_SPILL_UNMODIFIED set if and only if they were included for | |
175 | * backward compatibility purposes, and can be safely ignored by new versions | |
176 | * of zfs receive. Previous versions of ZFS which do not understand the | |
177 | * DRR_FLAG_SPILL_BLOCK will process this record and recreate any missing | |
178 | * spill blocks. | |
179 | */ | |
180 | #define DRR_FLAG_SPILL_BLOCK (1<<3) | |
34dc7c2f | 181 | |
428870ff | 182 | /* |
b5256303 TC |
183 | * flags in the drr_flags field in the DRR_WRITE, DRR_SPILL, DRR_OBJECT, |
184 | * DRR_WRITE_BYREF, and DRR_OBJECT_RANGE blocks | |
428870ff | 185 | */ |
caf9dd20 | 186 | #define DRR_CHECKSUM_DEDUP (1<<0) /* not used for SPILL records */ |
9b840763 | 187 | #define DRR_RAW_BYTESWAP (1<<1) |
caf9dd20 BB |
188 | #define DRR_OBJECT_SPILL (1<<2) /* OBJECT record has a spill block */ |
189 | #define DRR_SPILL_UNMODIFIED (1<<2) /* SPILL record for unmodified block */ | |
428870ff BB |
190 | |
191 | #define DRR_IS_DEDUP_CAPABLE(flags) ((flags) & DRR_CHECKSUM_DEDUP) | |
b5256303 | 192 | #define DRR_IS_RAW_BYTESWAPPED(flags) ((flags) & DRR_RAW_BYTESWAP) |
caf9dd20 BB |
193 | #define DRR_OBJECT_HAS_SPILL(flags) ((flags) & DRR_OBJECT_SPILL) |
194 | #define DRR_SPILL_IS_UNMODIFIED(flags) ((flags) & DRR_SPILL_UNMODIFIED) | |
428870ff | 195 | |
2aa34383 DK |
196 | /* deal with compressed drr_write replay records */ |
197 | #define DRR_WRITE_COMPRESSED(drrw) ((drrw)->drr_compressiontype != 0) | |
198 | #define DRR_WRITE_PAYLOAD_SIZE(drrw) \ | |
199 | (DRR_WRITE_COMPRESSED(drrw) ? (drrw)->drr_compressed_size : \ | |
200 | (drrw)->drr_logical_size) | |
b5256303 | 201 | #define DRR_SPILL_PAYLOAD_SIZE(drrs) \ |
9b840763 | 202 | ((drrs)->drr_compressed_size ? \ |
b5256303 TC |
203 | (drrs)->drr_compressed_size : (drrs)->drr_length) |
204 | #define DRR_OBJECT_PAYLOAD_SIZE(drro) \ | |
9b840763 TC |
205 | ((drro)->drr_raw_bonuslen != 0 ? \ |
206 | (drro)->drr_raw_bonuslen : P2ROUNDUP((drro)->drr_bonuslen, 8)) | |
2aa34383 | 207 | |
34dc7c2f BB |
208 | /* |
209 | * zfs ioctl command structure | |
210 | */ | |
211 | typedef struct dmu_replay_record { | |
212 | enum { | |
213 | DRR_BEGIN, DRR_OBJECT, DRR_FREEOBJECTS, | |
428870ff | 214 | DRR_WRITE, DRR_FREE, DRR_END, DRR_WRITE_BYREF, |
b5256303 TC |
215 | DRR_SPILL, DRR_WRITE_EMBEDDED, DRR_OBJECT_RANGE, |
216 | DRR_NUMTYPES | |
34dc7c2f BB |
217 | } drr_type; |
218 | uint32_t drr_payloadlen; | |
219 | union { | |
220 | struct drr_begin { | |
221 | uint64_t drr_magic; | |
428870ff | 222 | uint64_t drr_versioninfo; /* was drr_version */ |
34dc7c2f BB |
223 | uint64_t drr_creation_time; |
224 | dmu_objset_type_t drr_type; | |
225 | uint32_t drr_flags; | |
226 | uint64_t drr_toguid; | |
227 | uint64_t drr_fromguid; | |
228 | char drr_toname[MAXNAMELEN]; | |
229 | } drr_begin; | |
230 | struct drr_end { | |
231 | zio_cksum_t drr_checksum; | |
428870ff | 232 | uint64_t drr_toguid; |
34dc7c2f BB |
233 | } drr_end; |
234 | struct drr_object { | |
235 | uint64_t drr_object; | |
236 | dmu_object_type_t drr_type; | |
237 | dmu_object_type_t drr_bonustype; | |
238 | uint32_t drr_blksz; | |
239 | uint32_t drr_bonuslen; | |
428870ff | 240 | uint8_t drr_checksumtype; |
34dc7c2f | 241 | uint8_t drr_compress; |
50c957f7 | 242 | uint8_t drr_dn_slots; |
b5256303 TC |
243 | uint8_t drr_flags; |
244 | uint32_t drr_raw_bonuslen; | |
428870ff | 245 | uint64_t drr_toguid; |
ae76f45c | 246 | /* only (possibly) nonzero for raw streams */ |
b5256303 TC |
247 | uint8_t drr_indblkshift; |
248 | uint8_t drr_nlevels; | |
249 | uint8_t drr_nblkptr; | |
ae76f45c TC |
250 | uint8_t drr_pad[5]; |
251 | uint64_t drr_maxblkid; | |
34dc7c2f BB |
252 | /* bonus content follows */ |
253 | } drr_object; | |
254 | struct drr_freeobjects { | |
255 | uint64_t drr_firstobj; | |
256 | uint64_t drr_numobjs; | |
428870ff | 257 | uint64_t drr_toguid; |
34dc7c2f BB |
258 | } drr_freeobjects; |
259 | struct drr_write { | |
260 | uint64_t drr_object; | |
261 | dmu_object_type_t drr_type; | |
262 | uint32_t drr_pad; | |
263 | uint64_t drr_offset; | |
2aa34383 | 264 | uint64_t drr_logical_size; |
428870ff BB |
265 | uint64_t drr_toguid; |
266 | uint8_t drr_checksumtype; | |
b5256303 | 267 | uint8_t drr_flags; |
2aa34383 DK |
268 | uint8_t drr_compressiontype; |
269 | uint8_t drr_pad2[5]; | |
270 | /* deduplication key */ | |
271 | ddt_key_t drr_key; | |
272 | /* only nonzero if drr_compressiontype is not 0 */ | |
273 | uint64_t drr_compressed_size; | |
9b840763 | 274 | /* only nonzero for raw streams */ |
b5256303 TC |
275 | uint8_t drr_salt[ZIO_DATA_SALT_LEN]; |
276 | uint8_t drr_iv[ZIO_DATA_IV_LEN]; | |
277 | uint8_t drr_mac[ZIO_DATA_MAC_LEN]; | |
34dc7c2f BB |
278 | /* content follows */ |
279 | } drr_write; | |
280 | struct drr_free { | |
281 | uint64_t drr_object; | |
282 | uint64_t drr_offset; | |
283 | uint64_t drr_length; | |
428870ff | 284 | uint64_t drr_toguid; |
34dc7c2f | 285 | } drr_free; |
428870ff BB |
286 | struct drr_write_byref { |
287 | /* where to put the data */ | |
288 | uint64_t drr_object; | |
289 | uint64_t drr_offset; | |
290 | uint64_t drr_length; | |
291 | uint64_t drr_toguid; | |
292 | /* where to find the prior copy of the data */ | |
293 | uint64_t drr_refguid; | |
294 | uint64_t drr_refobject; | |
295 | uint64_t drr_refoffset; | |
296 | /* properties of the data */ | |
297 | uint8_t drr_checksumtype; | |
b5256303 | 298 | uint8_t drr_flags; |
428870ff BB |
299 | uint8_t drr_pad2[6]; |
300 | ddt_key_t drr_key; /* deduplication key */ | |
301 | } drr_write_byref; | |
302 | struct drr_spill { | |
303 | uint64_t drr_object; | |
304 | uint64_t drr_length; | |
305 | uint64_t drr_toguid; | |
b5256303 TC |
306 | uint8_t drr_flags; |
307 | uint8_t drr_compressiontype; | |
308 | uint8_t drr_pad[6]; | |
9b840763 | 309 | /* only nonzero for raw streams */ |
b5256303 TC |
310 | uint64_t drr_compressed_size; |
311 | uint8_t drr_salt[ZIO_DATA_SALT_LEN]; | |
312 | uint8_t drr_iv[ZIO_DATA_IV_LEN]; | |
313 | uint8_t drr_mac[ZIO_DATA_MAC_LEN]; | |
314 | dmu_object_type_t drr_type; | |
428870ff BB |
315 | /* spill data follows */ |
316 | } drr_spill; | |
9b67f605 MA |
317 | struct drr_write_embedded { |
318 | uint64_t drr_object; | |
319 | uint64_t drr_offset; | |
320 | /* logical length, should equal blocksize */ | |
321 | uint64_t drr_length; | |
322 | uint64_t drr_toguid; | |
323 | uint8_t drr_compression; | |
324 | uint8_t drr_etype; | |
325 | uint8_t drr_pad[6]; | |
326 | uint32_t drr_lsize; /* uncompressed size of payload */ | |
327 | uint32_t drr_psize; /* compr. (real) size of payload */ | |
328 | /* (possibly compressed) content follows */ | |
329 | } drr_write_embedded; | |
b5256303 TC |
330 | struct drr_object_range { |
331 | uint64_t drr_firstobj; | |
332 | uint64_t drr_numslots; | |
333 | uint64_t drr_toguid; | |
334 | uint8_t drr_salt[ZIO_DATA_SALT_LEN]; | |
335 | uint8_t drr_iv[ZIO_DATA_IV_LEN]; | |
336 | uint8_t drr_mac[ZIO_DATA_MAC_LEN]; | |
337 | uint8_t drr_flags; | |
338 | uint8_t drr_pad[3]; | |
339 | } drr_object_range; | |
37f8a883 MA |
340 | |
341 | /* | |
342 | * Nore: drr_checksum is overlaid with all record types | |
343 | * except DRR_BEGIN. Therefore its (non-pad) members | |
344 | * must not overlap with members from the other structs. | |
345 | * We accomplish this by putting its members at the very | |
346 | * end of the struct. | |
347 | */ | |
348 | struct drr_checksum { | |
349 | uint64_t drr_pad[34]; | |
350 | /* | |
351 | * fletcher-4 checksum of everything preceding the | |
352 | * checksum. | |
353 | */ | |
354 | zio_cksum_t drr_checksum; | |
355 | } drr_checksum; | |
34dc7c2f BB |
356 | } drr_u; |
357 | } dmu_replay_record_t; | |
358 | ||
572e2857 BB |
359 | /* diff record range types */ |
360 | typedef enum diff_type { | |
361 | DDR_NONE = 0x1, | |
362 | DDR_INUSE = 0x2, | |
363 | DDR_FREE = 0x4 | |
364 | } diff_type_t; | |
365 | ||
366 | /* | |
367 | * The diff reports back ranges of free or in-use objects. | |
368 | */ | |
369 | typedef struct dmu_diff_record { | |
370 | uint64_t ddr_type; | |
371 | uint64_t ddr_first; | |
372 | uint64_t ddr_last; | |
373 | } dmu_diff_record_t; | |
374 | ||
34dc7c2f BB |
375 | typedef struct zinject_record { |
376 | uint64_t zi_objset; | |
377 | uint64_t zi_object; | |
378 | uint64_t zi_start; | |
379 | uint64_t zi_end; | |
380 | uint64_t zi_guid; | |
381 | uint32_t zi_level; | |
382 | uint32_t zi_error; | |
383 | uint64_t zi_type; | |
384 | uint32_t zi_freq; | |
9babb374 | 385 | uint32_t zi_failfast; |
428870ff BB |
386 | char zi_func[MAXNAMELEN]; |
387 | uint32_t zi_iotype; | |
388 | int32_t zi_duration; | |
389 | uint64_t zi_timer; | |
26ef0cc7 | 390 | uint64_t zi_nlanes; |
cc92e9d0 | 391 | uint32_t zi_cmd; |
ab7615d9 | 392 | uint32_t zi_dvas; |
34dc7c2f BB |
393 | } zinject_record_t; |
394 | ||
395 | #define ZINJECT_NULL 0x1 | |
396 | #define ZINJECT_FLUSH_ARC 0x2 | |
397 | #define ZINJECT_UNLOAD_SPA 0x4 | |
e89f1295 | 398 | #define ZINJECT_CALC_RANGE 0x8 |
34dc7c2f | 399 | |
8c7aa0cf | 400 | #define ZEVENT_NONE 0x0 |
26685276 BB |
401 | #define ZEVENT_NONBLOCK 0x1 |
402 | #define ZEVENT_SIZE 1024 | |
403 | ||
75e3ff58 BB |
404 | #define ZEVENT_SEEK_START 0 |
405 | #define ZEVENT_SEEK_END UINT64_MAX | |
406 | ||
0241e491 DB |
407 | /* scaled frequency ranges */ |
408 | #define ZI_PERCENTAGE_MIN 4294UL | |
409 | #define ZI_PERCENTAGE_MAX UINT32_MAX | |
410 | ||
ab7615d9 TC |
411 | #define ZI_NO_DVA (-1) |
412 | ||
cc92e9d0 GW |
413 | typedef enum zinject_type { |
414 | ZINJECT_UNINITIALIZED, | |
415 | ZINJECT_DATA_FAULT, | |
416 | ZINJECT_DEVICE_FAULT, | |
417 | ZINJECT_LABEL_FAULT, | |
418 | ZINJECT_IGNORED_WRITES, | |
419 | ZINJECT_PANIC, | |
420 | ZINJECT_DELAY_IO, | |
be9a5c35 | 421 | ZINJECT_DECRYPT_FAULT, |
cc92e9d0 GW |
422 | } zinject_type_t; |
423 | ||
34dc7c2f BB |
424 | typedef struct zfs_share { |
425 | uint64_t z_exportdata; | |
426 | uint64_t z_sharedata; | |
427 | uint64_t z_sharetype; /* 0 = share, 1 = unshare */ | |
428 | uint64_t z_sharemax; /* max length of share string */ | |
429 | } zfs_share_t; | |
430 | ||
431 | /* | |
432 | * ZFS file systems may behave the usual, POSIX-compliant way, where | |
433 | * name lookups are case-sensitive. They may also be set up so that | |
434 | * all the name lookups are case-insensitive, or so that only some | |
435 | * lookups, the ones that set an FIGNORECASE flag, are case-insensitive. | |
436 | */ | |
437 | typedef enum zfs_case { | |
438 | ZFS_CASE_SENSITIVE, | |
439 | ZFS_CASE_INSENSITIVE, | |
440 | ZFS_CASE_MIXED | |
441 | } zfs_case_t; | |
442 | ||
47dfff3b MA |
443 | /* |
444 | * Note: this struct must have the same layout in 32-bit and 64-bit, so | |
445 | * that 32-bit processes (like /sbin/zfs) can pass it to the 64-bit | |
446 | * kernel. Therefore, we add padding to it so that no "hidden" padding | |
447 | * is automatically added on 64-bit (but not on 32-bit). | |
448 | */ | |
34dc7c2f | 449 | typedef struct zfs_cmd { |
6f1ffb06 MA |
450 | char zc_name[MAXPATHLEN]; /* name of pool or dataset */ |
451 | uint64_t zc_nvlist_src; /* really (char *) */ | |
452 | uint64_t zc_nvlist_src_size; | |
453 | uint64_t zc_nvlist_dst; /* really (char *) */ | |
454 | uint64_t zc_nvlist_dst_size; | |
455 | boolean_t zc_nvlist_dst_filled; /* put an nvlist in dst? */ | |
456 | int zc_pad2; | |
457 | ||
458 | /* | |
459 | * The following members are for legacy ioctls which haven't been | |
460 | * converted to the new method. | |
461 | */ | |
462 | uint64_t zc_history; /* really (char *) */ | |
34dc7c2f BB |
463 | char zc_value[MAXPATHLEN * 2]; |
464 | char zc_string[MAXNAMELEN]; | |
465 | uint64_t zc_guid; | |
466 | uint64_t zc_nvlist_conf; /* really (char *) */ | |
467 | uint64_t zc_nvlist_conf_size; | |
34dc7c2f BB |
468 | uint64_t zc_cookie; |
469 | uint64_t zc_objset_type; | |
470 | uint64_t zc_perm_action; | |
6f1ffb06 | 471 | uint64_t zc_history_len; |
34dc7c2f BB |
472 | uint64_t zc_history_offset; |
473 | uint64_t zc_obj; | |
9babb374 | 474 | uint64_t zc_iflags; /* internal to zfs(7fs) */ |
34dc7c2f BB |
475 | zfs_share_t zc_share; |
476 | dmu_objset_stats_t zc_objset_stats; | |
43e52edd | 477 | struct drr_begin zc_begin_record; |
34dc7c2f | 478 | zinject_record_t zc_inject_record; |
9b67f605 MA |
479 | uint32_t zc_defer_destroy; |
480 | uint32_t zc_flags; | |
572e2857 BB |
481 | uint64_t zc_action_handle; |
482 | int zc_cleanup_fd; | |
0cee2406 | 483 | uint8_t zc_simple; |
43e52edd | 484 | uint8_t zc_pad[3]; /* alignment */ |
572e2857 BB |
485 | uint64_t zc_sendobj; |
486 | uint64_t zc_fromobj; | |
487 | uint64_t zc_createtxg; | |
488 | zfs_stat_t zc_stat; | |
34dc7c2f BB |
489 | } zfs_cmd_t; |
490 | ||
9babb374 BB |
491 | typedef struct zfs_useracct { |
492 | char zu_domain[256]; | |
493 | uid_t zu_rid; | |
494 | uint32_t zu_pad; | |
495 | uint64_t zu_space; | |
496 | } zfs_useracct_t; | |
497 | ||
572e2857 BB |
498 | #define ZFSDEV_MAX_MINOR (1 << 16) |
499 | #define ZFS_MIN_MINOR (ZFSDEV_MAX_MINOR + 1) | |
34dc7c2f | 500 | |
428870ff BB |
501 | #define ZPOOL_EXPORT_AFTER_SPLIT 0x1 |
502 | ||
34dc7c2f | 503 | #ifdef _KERNEL |
d99a0153 CW |
504 | struct objset; |
505 | struct zfsvfs; | |
34dc7c2f BB |
506 | |
507 | typedef struct zfs_creat { | |
508 | nvlist_t *zct_zplprops; | |
509 | nvlist_t *zct_props; | |
510 | } zfs_creat_t; | |
511 | ||
d99a0153 CW |
512 | extern int zfs_secpolicy_snapshot_perms(const char *, cred_t *); |
513 | extern int zfs_secpolicy_rename_perms(const char *, const char *, cred_t *); | |
514 | extern int zfs_secpolicy_destroy_perms(const char *, cred_t *); | |
8d103d88 | 515 | extern void zfs_unmount_snap(const char *); |
13fe0198 | 516 | extern void zfs_destroy_unmount_origin(const char *); |
d99a0153 | 517 | extern int getzfsvfs_impl(struct objset *, struct zfsvfs **); |
8d103d88 | 518 | extern int getzfsvfs(const char *, struct zfsvfs **); |
ba6a2402 | 519 | |
325f0235 BB |
520 | enum zfsdev_state_type { |
521 | ZST_ONEXIT, | |
522 | ZST_ZEVENT, | |
523 | ZST_ALL, | |
572e2857 BB |
524 | }; |
525 | ||
3937ab20 TC |
526 | /* |
527 | * The zfsdev_state_t structure is managed as a singly-linked list | |
528 | * from which items are never deleted. This allows for lock-free | |
529 | * reading of the list so long as assignments to the zs_next and | |
530 | * reads from zs_minor are performed atomically. Empty items are | |
531 | * indicated by storing -1 into zs_minor. | |
532 | */ | |
325f0235 | 533 | typedef struct zfsdev_state { |
3937ab20 | 534 | struct zfsdev_state *zs_next; /* next zfsdev_state_t link */ |
325f0235 BB |
535 | struct file *zs_file; /* associated file struct */ |
536 | minor_t zs_minor; /* made up minor number */ | |
537 | void *zs_onexit; /* onexit data */ | |
538 | void *zs_zevent; /* zevent data */ | |
539 | } zfsdev_state_t; | |
572e2857 | 540 | |
325f0235 | 541 | extern void *zfsdev_get_state(minor_t minor, enum zfsdev_state_type which); |
72540ea3 | 542 | extern int zfsdev_getminor(struct file *filp, minor_t *minorp); |
572e2857 BB |
543 | extern minor_t zfsdev_minor_alloc(void); |
544 | ||
34dc7c2f BB |
545 | #endif /* _KERNEL */ |
546 | ||
547 | #ifdef __cplusplus | |
548 | } | |
549 | #endif | |
550 | ||
551 | #endif /* _SYS_ZFS_IOCTL_H */ |