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--- old/usr/src/uts/common/fs/zfs/sys/zfs_ioctl.h
+++ new/usr/src/uts/common/fs/zfs/sys/zfs_ioctl.h
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
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14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21 /*
22 22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 23 * Copyright (c) 2012 by Delphix. All rights reserved.
24 + * Copyright 2012, Nexenta Systems Inc. All rights reserved.
24 25 */
25 26
26 27 #ifndef _SYS_ZFS_IOCTL_H
27 28 #define _SYS_ZFS_IOCTL_H
28 29
29 30 #include <sys/cred.h>
30 31 #include <sys/dmu.h>
31 32 #include <sys/zio.h>
32 33 #include <sys/dsl_deleg.h>
33 34 #include <sys/spa.h>
34 35 #include <sys/zfs_stat.h>
35 36
36 37 #ifdef _KERNEL
37 38 #include <sys/nvpair.h>
38 39 #endif /* _KERNEL */
39 40
40 41 #ifdef __cplusplus
41 42 extern "C" {
42 43 #endif
43 44
44 45 /*
45 46 * The structures in this file are passed between userland and the
46 47 * kernel. Userland may be running a 32-bit process, while the kernel
47 48 * is 64-bit. Therefore, these structures need to compile the same in
48 49 * 32-bit and 64-bit. This means not using type "long", and adding
49 50 * explicit padding so that the 32-bit structure will not be packed more
50 51 * tightly than the 64-bit structure (which requires 64-bit alignment).
51 52 */
52 53
53 54 /*
54 55 * Property values for snapdir
55 56 */
56 57 #define ZFS_SNAPDIR_HIDDEN 0
57 58 #define ZFS_SNAPDIR_VISIBLE 1
58 59
59 60 /*
60 61 * Field manipulation macros for the drr_versioninfo field of the
61 62 * send stream header.
62 63 */
63 64
64 65 /*
65 66 * Header types for zfs send streams.
66 67 */
67 68 typedef enum drr_headertype {
68 69 DMU_SUBSTREAM = 0x1,
69 70 DMU_COMPOUNDSTREAM = 0x2
70 71 } drr_headertype_t;
71 72
72 73 #define DMU_GET_STREAM_HDRTYPE(vi) BF64_GET((vi), 0, 2)
73 74 #define DMU_SET_STREAM_HDRTYPE(vi, x) BF64_SET((vi), 0, 2, x)
74 75
75 76 #define DMU_GET_FEATUREFLAGS(vi) BF64_GET((vi), 2, 30)
76 77 #define DMU_SET_FEATUREFLAGS(vi, x) BF64_SET((vi), 2, 30, x)
77 78
78 79 /*
79 80 * Feature flags for zfs send streams (flags in drr_versioninfo)
80 81 */
81 82
82 83 #define DMU_BACKUP_FEATURE_DEDUP (0x1)
83 84 #define DMU_BACKUP_FEATURE_DEDUPPROPS (0x2)
84 85 #define DMU_BACKUP_FEATURE_SA_SPILL (0x4)
85 86
86 87 /*
87 88 * Mask of all supported backup features
88 89 */
89 90 #define DMU_BACKUP_FEATURE_MASK (DMU_BACKUP_FEATURE_DEDUP | \
90 91 DMU_BACKUP_FEATURE_DEDUPPROPS | DMU_BACKUP_FEATURE_SA_SPILL)
91 92
92 93 /* Are all features in the given flag word currently supported? */
93 94 #define DMU_STREAM_SUPPORTED(x) (!((x) & ~DMU_BACKUP_FEATURE_MASK))
94 95
95 96 /*
96 97 * The drr_versioninfo field of the dmu_replay_record has the
97 98 * following layout:
98 99 *
99 100 * 64 56 48 40 32 24 16 8 0
100 101 * +-------+-------+-------+-------+-------+-------+-------+-------+
101 102 * | reserved | feature-flags |C|S|
102 103 * +-------+-------+-------+-------+-------+-------+-------+-------+
103 104 *
104 105 * The low order two bits indicate the header type: SUBSTREAM (0x1)
105 106 * or COMPOUNDSTREAM (0x2). Using two bits for this is historical:
106 107 * this field used to be a version number, where the two version types
107 108 * were 1 and 2. Using two bits for this allows earlier versions of
108 109 * the code to be able to recognize send streams that don't use any
109 110 * of the features indicated by feature flags.
110 111 */
111 112
112 113 #define DMU_BACKUP_MAGIC 0x2F5bacbacULL
113 114
114 115 #define DRR_FLAG_CLONE (1<<0)
115 116 #define DRR_FLAG_CI_DATA (1<<1)
116 117
117 118 /*
118 119 * flags in the drr_checksumflags field in the DRR_WRITE and
119 120 * DRR_WRITE_BYREF blocks
120 121 */
121 122 #define DRR_CHECKSUM_DEDUP (1<<0)
122 123
123 124 #define DRR_IS_DEDUP_CAPABLE(flags) ((flags) & DRR_CHECKSUM_DEDUP)
124 125
125 126 /*
126 127 * zfs ioctl command structure
127 128 */
128 129 typedef struct dmu_replay_record {
129 130 enum {
130 131 DRR_BEGIN, DRR_OBJECT, DRR_FREEOBJECTS,
131 132 DRR_WRITE, DRR_FREE, DRR_END, DRR_WRITE_BYREF,
132 133 DRR_SPILL, DRR_NUMTYPES
133 134 } drr_type;
134 135 uint32_t drr_payloadlen;
135 136 union {
136 137 struct drr_begin {
137 138 uint64_t drr_magic;
138 139 uint64_t drr_versioninfo; /* was drr_version */
139 140 uint64_t drr_creation_time;
140 141 dmu_objset_type_t drr_type;
141 142 uint32_t drr_flags;
142 143 uint64_t drr_toguid;
143 144 uint64_t drr_fromguid;
144 145 char drr_toname[MAXNAMELEN];
145 146 } drr_begin;
146 147 struct drr_end {
147 148 zio_cksum_t drr_checksum;
148 149 uint64_t drr_toguid;
149 150 } drr_end;
150 151 struct drr_object {
151 152 uint64_t drr_object;
152 153 dmu_object_type_t drr_type;
153 154 dmu_object_type_t drr_bonustype;
154 155 uint32_t drr_blksz;
155 156 uint32_t drr_bonuslen;
156 157 uint8_t drr_checksumtype;
157 158 uint8_t drr_compress;
158 159 uint8_t drr_pad[6];
159 160 uint64_t drr_toguid;
160 161 /* bonus content follows */
161 162 } drr_object;
162 163 struct drr_freeobjects {
163 164 uint64_t drr_firstobj;
164 165 uint64_t drr_numobjs;
165 166 uint64_t drr_toguid;
166 167 } drr_freeobjects;
167 168 struct drr_write {
168 169 uint64_t drr_object;
169 170 dmu_object_type_t drr_type;
170 171 uint32_t drr_pad;
171 172 uint64_t drr_offset;
172 173 uint64_t drr_length;
173 174 uint64_t drr_toguid;
174 175 uint8_t drr_checksumtype;
175 176 uint8_t drr_checksumflags;
176 177 uint8_t drr_pad2[6];
177 178 ddt_key_t drr_key; /* deduplication key */
178 179 /* content follows */
179 180 } drr_write;
180 181 struct drr_free {
181 182 uint64_t drr_object;
182 183 uint64_t drr_offset;
183 184 uint64_t drr_length;
184 185 uint64_t drr_toguid;
185 186 } drr_free;
186 187 struct drr_write_byref {
187 188 /* where to put the data */
188 189 uint64_t drr_object;
189 190 uint64_t drr_offset;
190 191 uint64_t drr_length;
191 192 uint64_t drr_toguid;
192 193 /* where to find the prior copy of the data */
193 194 uint64_t drr_refguid;
194 195 uint64_t drr_refobject;
195 196 uint64_t drr_refoffset;
196 197 /* properties of the data */
197 198 uint8_t drr_checksumtype;
198 199 uint8_t drr_checksumflags;
199 200 uint8_t drr_pad2[6];
200 201 ddt_key_t drr_key; /* deduplication key */
201 202 } drr_write_byref;
202 203 struct drr_spill {
203 204 uint64_t drr_object;
204 205 uint64_t drr_length;
205 206 uint64_t drr_toguid;
206 207 uint64_t drr_pad[4]; /* needed for crypto */
207 208 /* spill data follows */
208 209 } drr_spill;
209 210 } drr_u;
210 211 } dmu_replay_record_t;
211 212
212 213 /* diff record range types */
213 214 typedef enum diff_type {
214 215 DDR_NONE = 0x1,
215 216 DDR_INUSE = 0x2,
216 217 DDR_FREE = 0x4
217 218 } diff_type_t;
218 219
219 220 /*
220 221 * The diff reports back ranges of free or in-use objects.
221 222 */
222 223 typedef struct dmu_diff_record {
223 224 uint64_t ddr_type;
224 225 uint64_t ddr_first;
225 226 uint64_t ddr_last;
226 227 } dmu_diff_record_t;
227 228
228 229 typedef struct zinject_record {
229 230 uint64_t zi_objset;
230 231 uint64_t zi_object;
231 232 uint64_t zi_start;
232 233 uint64_t zi_end;
233 234 uint64_t zi_guid;
234 235 uint32_t zi_level;
235 236 uint32_t zi_error;
236 237 uint64_t zi_type;
237 238 uint32_t zi_freq;
238 239 uint32_t zi_failfast;
239 240 char zi_func[MAXNAMELEN];
240 241 uint32_t zi_iotype;
241 242 int32_t zi_duration;
242 243 uint64_t zi_timer;
243 244 } zinject_record_t;
244 245
245 246 #define ZINJECT_NULL 0x1
246 247 #define ZINJECT_FLUSH_ARC 0x2
247 248 #define ZINJECT_UNLOAD_SPA 0x4
248 249
249 250 typedef struct zfs_share {
250 251 uint64_t z_exportdata;
251 252 uint64_t z_sharedata;
252 253 uint64_t z_sharetype; /* 0 = share, 1 = unshare */
253 254 uint64_t z_sharemax; /* max length of share string */
254 255 } zfs_share_t;
255 256
256 257 /*
257 258 * ZFS file systems may behave the usual, POSIX-compliant way, where
258 259 * name lookups are case-sensitive. They may also be set up so that
259 260 * all the name lookups are case-insensitive, or so that only some
260 261 * lookups, the ones that set an FIGNORECASE flag, are case-insensitive.
261 262 */
262 263 typedef enum zfs_case {
263 264 ZFS_CASE_SENSITIVE,
264 265 ZFS_CASE_INSENSITIVE,
265 266 ZFS_CASE_MIXED
266 267 } zfs_case_t;
267 268
268 269 typedef struct zfs_cmd {
269 270 char zc_name[MAXPATHLEN]; /* name of pool or dataset */
270 271 uint64_t zc_nvlist_src; /* really (char *) */
271 272 uint64_t zc_nvlist_src_size;
272 273 uint64_t zc_nvlist_dst; /* really (char *) */
273 274 uint64_t zc_nvlist_dst_size;
274 275 boolean_t zc_nvlist_dst_filled; /* put an nvlist in dst? */
275 276 int zc_pad2;
276 277
277 278 /*
278 279 * The following members are for legacy ioctls which haven't been
279 280 * converted to the new method.
280 281 */
281 282 uint64_t zc_history; /* really (char *) */
282 283 char zc_value[MAXPATHLEN * 2];
283 284 char zc_string[MAXNAMELEN];
284 285 char zc_top_ds[MAXPATHLEN];
285 286 uint64_t zc_guid;
286 287 uint64_t zc_nvlist_conf; /* really (char *) */
287 288 uint64_t zc_nvlist_conf_size;
288 289 uint64_t zc_cookie;
289 290 uint64_t zc_objset_type;
290 291 uint64_t zc_perm_action;
291 292 uint64_t zc_history_len;
292 293 uint64_t zc_history_offset;
293 294 uint64_t zc_obj;
294 295 uint64_t zc_iflags; /* internal to zfs(7fs) */
295 296 zfs_share_t zc_share;
296 297 dmu_objset_stats_t zc_objset_stats;
297 298 struct drr_begin zc_begin_record;
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298 299 zinject_record_t zc_inject_record;
299 300 boolean_t zc_defer_destroy;
300 301 boolean_t zc_temphold;
301 302 uint64_t zc_action_handle;
302 303 int zc_cleanup_fd;
303 304 uint8_t zc_pad[4]; /* alignment */
304 305 uint64_t zc_sendobj;
305 306 uint64_t zc_fromobj;
306 307 uint64_t zc_createtxg;
307 308 zfs_stat_t zc_stat;
309 + uint64_t zc_sendcounter;
310 + boolean_t zc_sendsize;
308 311 } zfs_cmd_t;
309 312
310 313 typedef struct zfs_useracct {
311 314 char zu_domain[256];
312 315 uid_t zu_rid;
313 316 uint32_t zu_pad;
314 317 uint64_t zu_space;
315 318 } zfs_useracct_t;
316 319
317 320 #define ZFSDEV_MAX_MINOR (1 << 16)
318 321 #define ZFS_MIN_MINOR (ZFSDEV_MAX_MINOR + 1)
319 322
320 323 #define ZPOOL_EXPORT_AFTER_SPLIT 0x1
321 324
322 325 #ifdef _KERNEL
323 326
324 327 typedef struct zfs_creat {
325 328 nvlist_t *zct_zplprops;
326 329 nvlist_t *zct_props;
327 330 } zfs_creat_t;
328 331
329 332 extern dev_info_t *zfs_dip;
330 333
331 334 extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr);
332 335 extern int zfs_secpolicy_rename_perms(const char *from,
333 336 const char *to, cred_t *cr);
334 337 extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr);
335 338 extern int zfs_busy(void);
336 339 extern int zfs_unmount_snap(const char *, void *);
337 340
338 341 /*
339 342 * ZFS minor numbers can refer to either a control device instance or
340 343 * a zvol. Depending on the value of zss_type, zss_data points to either
341 344 * a zvol_state_t or a zfs_onexit_t.
342 345 */
343 346 enum zfs_soft_state_type {
344 347 ZSST_ZVOL,
345 348 ZSST_CTLDEV
346 349 };
347 350
348 351 typedef struct zfs_soft_state {
349 352 enum zfs_soft_state_type zss_type;
350 353 void *zss_data;
351 354 } zfs_soft_state_t;
352 355
353 356 extern void *zfsdev_get_soft_state(minor_t minor,
354 357 enum zfs_soft_state_type which);
355 358 extern minor_t zfsdev_minor_alloc(void);
356 359
357 360 extern void *zfsdev_state;
358 361 extern kmutex_t zfsdev_state_lock;
359 362
360 363 #endif /* _KERNEL */
361 364
362 365 #ifdef __cplusplus
363 366 }
364 367 #endif
365 368
366 369 #endif /* _SYS_ZFS_IOCTL_H */
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