xref: /xnu-8792.61.2/bsd/sys/attr.h (revision 42e220869062b56f8d7d0726fd4c88954f87902c)
1 /*
2  * Copyright (c) 2000-2018 Apple Computer, Inc. All rights reserved.
3  *
4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5  *
6  * This file contains Original Code and/or Modifications of Original Code
7  * as defined in and that are subject to the Apple Public Source License
8  * Version 2.0 (the 'License'). You may not use this file except in
9  * compliance with the License. The rights granted to you under the License
10  * may not be used to create, or enable the creation or redistribution of,
11  * unlawful or unlicensed copies of an Apple operating system, or to
12  * circumvent, violate, or enable the circumvention or violation of, any
13  * terms of an Apple operating system software license agreement.
14  *
15  * Please obtain a copy of the License at
16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17  *
18  * The Original Code and all software distributed under the License are
19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23  * Please see the License for the specific language governing rights and
24  * limitations under the License.
25  *
26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27  */
28 
29 /*
30  * attr.h - attribute data structures and interfaces
31  *
32  * Copyright (c) 1998, Apple Computer, Inc.  All Rights Reserved.
33  */
34 
35 #ifndef _SYS_ATTR_H_
36 #define _SYS_ATTR_H_
37 
38 #include <sys/appleapiopts.h>
39 
40 #ifdef __APPLE_API_UNSTABLE
41 #include <sys/types.h>
42 #include <sys/ucred.h>
43 #include <sys/time.h>
44 #include <sys/cdefs.h>
45 
46 #define FSOPT_NOFOLLOW          0x00000001
47 #define FSOPT_NOINMEMUPDATE     0x00000002
48 #define FSOPT_REPORT_FULLSIZE   0x00000004
49 /* The following option only valid when requesting ATTR_CMN_RETURNED_ATTRS */
50 #define FSOPT_PACK_INVAL_ATTRS  0x00000008
51 
52 #ifdef PRIVATE
53 #define FSOPT_EXCHANGE_DATA_ONLY 0x0000010
54 #endif
55 
56 #define FSOPT_ATTR_CMN_EXTENDED 0x00000020
57 #ifdef PRIVATE
58 #define FSOPT_LIST_SNAPSHOT     0x00000040
59 #ifndef FSOPT_NOFIRMLINKPATH /*a copy is in fsgetpath.h */
60 #define FSOPT_NOFIRMLINKPATH     0x00000080
61 #endif /* FSOPT_NOFIRMLINKPATH */
62 #define FSOPT_FOLLOW_FIRMLINK    0x00000100
63 #endif /* PRIVATE */
64 #define FSOPT_RETURN_REALDEV     0x00000200
65 #ifdef PRIVATE
66 #ifndef FSOPT_ISREALFSID  /*a copy is in fsgetpath.h */
67 #define FSOPT_ISREALFSID         FSOPT_RETURN_REALDEV
68 #endif
69 #define FSOPT_UTIMES_NULL        0x00000400
70 #endif /* PRIVATE */
71 #define FSOPT_NOFOLLOW_ANY       0x00000800
72 
73 /* we currently aren't anywhere near this amount for a valid
74  * fssearchblock.sizeofsearchparams1 or fssearchblock.sizeofsearchparams2
75  * but we put a sanity check in to avoid abuse of the value passed in from
76  * user land.
77  */
78 #define SEARCHFS_MAX_SEARCHPARMS  4096
79 
80 typedef u_int32_t text_encoding_t;
81 
82 typedef u_int32_t fsobj_type_t;
83 
84 typedef u_int32_t fsobj_tag_t;
85 
86 typedef u_int32_t fsfile_type_t;
87 
88 typedef u_int32_t fsvolid_t;
89 
90 #include <sys/_types/_fsobj_id_t.h> /* file object id type */
91 
92 typedef u_int32_t attrgroup_t;
93 
94 struct attrlist {
95 	u_short bitmapcount;                    /* number of attr. bit sets in list (should be 5) */
96 	u_int16_t reserved;                     /* (to maintain 4-byte alignment) */
97 	attrgroup_t commonattr;                 /* common attribute group */
98 	attrgroup_t volattr;                    /* Volume attribute group */
99 	attrgroup_t dirattr;                    /* directory attribute group */
100 	attrgroup_t fileattr;                   /* file attribute group */
101 	attrgroup_t forkattr;                   /* fork attribute group */
102 };
103 
104 #define ATTR_BIT_MAP_COUNT 5
105 
106 typedef struct attribute_set {
107 	attrgroup_t commonattr;                 /* common attribute group */
108 	attrgroup_t volattr;                    /* Volume attribute group */
109 	attrgroup_t dirattr;                    /* directory attribute group */
110 	attrgroup_t fileattr;                   /* file attribute group */
111 	attrgroup_t forkattr;                   /* fork attribute group */
112 } attribute_set_t;
113 
114 #define ATTRIBUTE_SET_INIT(a)               do {(a)->commonattr = (a)->volattr = (a)->dirattr = (a)->fileattr = (a)->forkattr = 0; } while(0)
115 
116 
117 typedef struct attrreference {
118 	int32_t     attr_dataoffset;
119 	u_int32_t   attr_length;
120 } attrreference_t;
121 
122 /* XXX PPD This is derived from HFSVolumePriv.h and should perhaps be referenced from there? */
123 
124 struct diskextent {
125 	u_int32_t                                       startblock;                             /* first block allocated */
126 	u_int32_t                                       blockcount;                             /* number of blocks allocated */
127 };
128 
129 typedef struct diskextent extentrecord[8];
130 
131 typedef u_int32_t vol_capabilities_set_t[4];
132 
133 #define VOL_CAPABILITIES_FORMAT 0
134 #define VOL_CAPABILITIES_INTERFACES 1
135 #define VOL_CAPABILITIES_RESERVED1 2
136 #define VOL_CAPABILITIES_RESERVED2 3
137 
138 typedef struct vol_capabilities_attr {
139 	vol_capabilities_set_t capabilities;
140 	vol_capabilities_set_t valid;
141 } vol_capabilities_attr_t;
142 
143 /*
144  * XXX this value needs to be raised - 3893388
145  */
146 #define ATTR_MAX_BUFFER         8192
147 
148 /*
149  * VOL_CAP_FMT_PERSISTENTOBJECTIDS: When set, the volume has object IDs
150  * that are persistent (retain their values even when the volume is
151  * unmounted and remounted), and a file or directory can be looked up
152  * by ID.  Volumes that support VolFS and can support Carbon File ID
153  * references should set this bit.
154  *
155  * VOL_CAP_FMT_SYMBOLICLINKS: When set, the volume supports symbolic
156  * links.  The symlink(), readlink(), and lstat() calls all use this
157  * symbolic link.
158  *
159  * VOL_CAP_FMT_HARDLINKS: When set, the volume supports hard links.
160  * The link() call creates hard links.
161  *
162  * VOL_CAP_FMT_JOURNAL: When set, the volume is capable of supporting
163  * a journal used to speed recovery in case of unplanned shutdown
164  * (such as a power outage or crash).  This bit does not necessarily
165  * mean the volume is actively using a journal for recovery.
166  *
167  * VOL_CAP_FMT_JOURNAL_ACTIVE: When set, the volume is currently using
168  * a journal for use in speeding recovery after an unplanned shutdown.
169  * This bit can be set only if VOL_CAP_FMT_JOURNAL is also set.
170  *
171  * VOL_CAP_FMT_NO_ROOT_TIMES: When set, the volume format does not
172  * store reliable times for the root directory, so you should not
173  * depend on them to detect changes, etc.
174  *
175  * VOL_CAP_FMT_SPARSE_FILES: When set, the volume supports sparse files.
176  * That is, files which can have "holes" that have never been written
177  * to, and are not allocated on disk.  Sparse files may have an
178  * allocated size that is less than the file's logical length.
179  *
180  * VOL_CAP_FMT_ZERO_RUNS: For security reasons, parts of a file (runs)
181  * that have never been written to must appear to contain zeroes.  When
182  * this bit is set, the volume keeps track of allocated but unwritten
183  * runs of a file so that it can substitute zeroes without actually
184  * writing zeroes to the media.  This provides performance similar to
185  * sparse files, but not the space savings.
186  *
187  * VOL_CAP_FMT_CASE_SENSITIVE: When set, file and directory names are
188  * case sensitive (upper and lower case are different).  When clear,
189  * an upper case character is equivalent to a lower case character,
190  * and you can't have two names that differ solely in the case of
191  * the characters.
192  *
193  * VOL_CAP_FMT_CASE_PRESERVING: When set, file and directory names
194  * preserve the difference between upper and lower case.  If clear,
195  * the volume may change the case of some characters (typically
196  * making them all upper or all lower case).  A volume that sets
197  * VOL_CAP_FMT_CASE_SENSITIVE should also set VOL_CAP_FMT_CASE_PRESERVING.
198  *
199  * VOL_CAP_FMT_FAST_STATFS: This bit is used as a hint to upper layers
200  * (especially Carbon) that statfs() is fast enough that its results
201  * need not be cached by those upper layers.  A volume that caches
202  * the statfs information in its in-memory structures should set this bit.
203  * A volume that must always read from disk or always perform a network
204  * transaction should not set this bit.
205  *
206  * VOL_CAP_FMT_2TB_FILESIZE: If this bit is set the volume format supports
207  * file sizes larger than 4GB, and potentially up to 2TB; it does not
208  * indicate whether the filesystem supports files larger than that.
209  *
210  * VOL_CAP_FMT_OPENDENYMODES: When set, the volume supports open deny
211  * modes (e.g. "open for read write, deny write"; effectively, mandatory
212  * file locking based on open modes).
213  *
214  * VOL_CAP_FMT_HIDDEN_FILES: When set, the volume supports the UF_HIDDEN
215  * file flag, and the UF_HIDDEN flag is mapped to that volume's native
216  * "hidden" or "invisible" bit (which may be the invisible bit from the
217  * Finder Info extended attribute).
218  *
219  * VOL_CAP_FMT_PATH_FROM_ID:  When set, the volume supports the ability
220  * to derive a pathname to the root of the file system given only the
221  * id of an object.  This also implies that object ids on this file
222  * system are persistent and not recycled.  This is a very specialized
223  * capability and it is assumed that most file systems will not support
224  * it.  Its use is for legacy non-posix APIs like ResolveFileIDRef.
225  *
226  * VOL_CAP_FMT_NO_VOLUME_SIZES: When set, the volume does not support
227  * returning values for total data blocks, available blocks, or free blocks
228  * (as in f_blocks, f_bavail, or f_bfree in "struct statfs").  Historically,
229  * those values were set to 0xFFFFFFFF for volumes that did not support them.
230  *
231  * VOL_CAP_FMT_DECMPFS_COMPRESSION: When set, the volume supports transparent
232  * decompression of compressed files using decmpfs.
233  *
234  * VOL_CAP_FMT_64BIT_OBJECT_IDS: When set, the volume uses object IDs that
235  * are 64-bit. This means that ATTR_CMN_FILEID and ATTR_CMN_PARENTID are the
236  * only legitimate attributes for obtaining object IDs from this volume and the
237  * 32-bit fid_objno fields of the fsobj_id_t returned by ATTR_CMN_OBJID,
238  * ATTR_CMN_OBJPERMID, and ATTR_CMN_PAROBJID are undefined.
239  *
240  * VOL_CAP_FMT_DIR_HARDLINKS: When set, the volume supports directory
241  * hard links.
242  *
243  * VOL_CAP_FMT_DOCUMENT_ID: When set, the volume supports document IDs
244  * (an ID which persists across object ID changes) for document revisions.
245  *
246  * VOL_CAP_FMT_WRITE_GENERATION_COUNT: When set, the volume supports write
247  * generation counts (a count of how many times an object has been modified)
248  *
249  * VOL_CAP_FMT_NO_IMMUTABLE_FILES: When set, the volume does not support
250  * setting the UF_IMMUTABLE flag.
251  *
252  * VOL_CAP_FMT_NO_PERMISSIONS: When set, the volume does not support setting
253  * permissions.
254  *
255  * VOL_CAP_FMT_SHARED_SPACE: When set, the volume supports sharing space with
256  * other filesystems i.e. multiple logical filesystems can exist in the same
257  * "partition". An implication of this is that the filesystem which sets
258  * this capability treats waitfor arguments to VFS_SYNC as bit flags.
259  *
260  * VOL_CAP_FMT_VOL_GROUPS: When set, this volume is part of a volume-group
261  * that implies multiple volumes must be mounted in order to boot and root the
262  * operating system. Typically, this means a read-only system volume and a
263  * writable data volume.
264  *
265  * VOL_CAP_FMT_SEALED: When set, this volume is cryptographically sealed.
266  * Any modifications to volume data or metadata will be detected and may
267  * render the volume unusable.
268  */
269 #define VOL_CAP_FMT_PERSISTENTOBJECTIDS         0x00000001
270 #define VOL_CAP_FMT_SYMBOLICLINKS               0x00000002
271 #define VOL_CAP_FMT_HARDLINKS                   0x00000004
272 #define VOL_CAP_FMT_JOURNAL                     0x00000008
273 #define VOL_CAP_FMT_JOURNAL_ACTIVE              0x00000010
274 #define VOL_CAP_FMT_NO_ROOT_TIMES               0x00000020
275 #define VOL_CAP_FMT_SPARSE_FILES                0x00000040
276 #define VOL_CAP_FMT_ZERO_RUNS                   0x00000080
277 #define VOL_CAP_FMT_CASE_SENSITIVE              0x00000100
278 #define VOL_CAP_FMT_CASE_PRESERVING             0x00000200
279 #define VOL_CAP_FMT_FAST_STATFS                 0x00000400
280 #define VOL_CAP_FMT_2TB_FILESIZE                0x00000800
281 #define VOL_CAP_FMT_OPENDENYMODES               0x00001000
282 #define VOL_CAP_FMT_HIDDEN_FILES                0x00002000
283 #define VOL_CAP_FMT_PATH_FROM_ID                0x00004000
284 #define VOL_CAP_FMT_NO_VOLUME_SIZES             0x00008000
285 #define VOL_CAP_FMT_DECMPFS_COMPRESSION         0x00010000
286 #define VOL_CAP_FMT_64BIT_OBJECT_IDS            0x00020000
287 #define VOL_CAP_FMT_DIR_HARDLINKS               0x00040000
288 #define VOL_CAP_FMT_DOCUMENT_ID                 0x00080000
289 #define VOL_CAP_FMT_WRITE_GENERATION_COUNT      0x00100000
290 #define VOL_CAP_FMT_NO_IMMUTABLE_FILES          0x00200000
291 #define VOL_CAP_FMT_NO_PERMISSIONS              0x00400000
292 #define VOL_CAP_FMT_SHARED_SPACE                0x00800000
293 #define VOL_CAP_FMT_VOL_GROUPS                  0x01000000
294 #define VOL_CAP_FMT_SEALED                      0x02000000
295 
296 /*
297  * VOL_CAP_INT_SEARCHFS: When set, the volume implements the
298  * searchfs() system call (the vnop_searchfs vnode operation).
299  *
300  * VOL_CAP_INT_ATTRLIST: When set, the volume implements the
301  * getattrlist() and setattrlist() system calls (vnop_getattrlist
302  * and vnop_setattrlist vnode operations) for the volume, files,
303  * and directories.  The volume may or may not implement the
304  * readdirattr() system call.  XXX Is there any minimum set
305  * of attributes that should be supported?  To determine the
306  * set of supported attributes, get the ATTR_VOL_ATTRIBUTES
307  * attribute of the volume.
308  *
309  * VOL_CAP_INT_NFSEXPORT: When set, the volume implements exporting
310  * of NFS volumes.
311  *
312  * VOL_CAP_INT_READDIRATTR: When set, the volume implements the
313  * readdirattr() system call (vnop_readdirattr vnode operation).
314  *
315  * VOL_CAP_INT_EXCHANGEDATA: When set, the volume implements the
316  * exchangedata() system call (VNOP_EXCHANGE vnode operation).
317  *
318  * VOL_CAP_INT_COPYFILE: When set, the volume implements the
319  * VOP_COPYFILE vnode operation.  (XXX There should be a copyfile()
320  * system call in <unistd.h>.)
321  *
322  * VOL_CAP_INT_ALLOCATE: When set, the volume implements the
323  * VNOP_ALLOCATE vnode operation, which means it implements the
324  * F_PREALLOCATE selector of fcntl(2).
325  *
326  * VOL_CAP_INT_VOL_RENAME: When set, the volume implements the
327  * ATTR_VOL_NAME attribute for both getattrlist() and setattrlist().
328  * The volume can be renamed by setting ATTR_VOL_NAME with setattrlist().
329  *
330  * VOL_CAP_INT_ADVLOCK: When set, the volume implements POSIX style
331  * byte range locks via vnop_advlock (accessible from fcntl(2)).
332  *
333  * VOL_CAP_INT_FLOCK: When set, the volume implements whole-file flock(2)
334  * style locks via vnop_advlock.  This includes the O_EXLOCK and O_SHLOCK
335  * flags of the open(2) call.
336  *
337  * VOL_CAP_INT_EXTENDED_SECURITY: When set, the volume implements
338  * extended security (ACLs).
339  *
340  * VOL_CAP_INT_USERACCESS:  When set, the volume supports the
341  * ATTR_CMN_USERACCESS attribute (used to get the user's access
342  * mode to the file).
343  *
344  * VOL_CAP_INT_MANLOCK: When set, the volume supports AFP-style
345  * mandatory byte range locks via an ioctl().
346  *
347  * VOL_CAP_INT_EXTENDED_ATTR: When set, the volume implements
348  * native extended attribues.
349  *
350  * VOL_CAP_INT_NAMEDSTREAMS: When set, the volume supports
351  * native named streams.
352  *
353  * VOL_CAP_INT_CLONE: When set, the volume supports clones.
354  *
355  * VOL_CAP_INT_SNAPSHOT: When set, the volume supports snapshots.
356  *
357  * VOL_CAP_INT_RENAME_SWAP: When set, the volume supports swapping
358  * file system objects.
359  *
360  * VOL_CAP_INT_RENAME_EXCL: When set, the volume supports an
361  * exclusive rename operation.
362  *
363  * VOL_CAP_INT_RENAME_OPENFAIL: When set, the volume may fail rename
364  * operations on files that are open.
365  */
366 #define VOL_CAP_INT_SEARCHFS                    0x00000001
367 #define VOL_CAP_INT_ATTRLIST                    0x00000002
368 #define VOL_CAP_INT_NFSEXPORT                   0x00000004
369 #define VOL_CAP_INT_READDIRATTR                 0x00000008
370 #define VOL_CAP_INT_EXCHANGEDATA                0x00000010
371 #define VOL_CAP_INT_COPYFILE                    0x00000020
372 #define VOL_CAP_INT_ALLOCATE                    0x00000040
373 #define VOL_CAP_INT_VOL_RENAME                  0x00000080
374 #define VOL_CAP_INT_ADVLOCK                     0x00000100
375 #define VOL_CAP_INT_FLOCK                       0x00000200
376 #define VOL_CAP_INT_EXTENDED_SECURITY           0x00000400
377 #define VOL_CAP_INT_USERACCESS                  0x00000800
378 #define VOL_CAP_INT_MANLOCK                     0x00001000
379 #define VOL_CAP_INT_NAMEDSTREAMS                0x00002000
380 #define VOL_CAP_INT_EXTENDED_ATTR               0x00004000
381 #ifdef PRIVATE
382 /* Volume supports kqueue notifications for remote events */
383 #define VOL_CAP_INT_REMOTE_EVENT                0x00008000
384 #endif /* PRIVATE */
385 #define VOL_CAP_INT_CLONE                       0x00010000
386 #define VOL_CAP_INT_SNAPSHOT                    0x00020000
387 #define VOL_CAP_INT_RENAME_SWAP                 0x00040000
388 #define VOL_CAP_INT_RENAME_EXCL                 0x00080000
389 #define VOL_CAP_INT_RENAME_OPENFAIL             0x00100000
390 
391 typedef struct vol_attributes_attr {
392 	attribute_set_t validattr;
393 	attribute_set_t nativeattr;
394 } vol_attributes_attr_t;
395 
396 #define ATTR_CMN_NAME                           0x00000001
397 #define ATTR_CMN_DEVID                          0x00000002
398 #define ATTR_CMN_FSID                           0x00000004
399 #define ATTR_CMN_OBJTYPE                        0x00000008
400 #define ATTR_CMN_OBJTAG                         0x00000010
401 #define ATTR_CMN_OBJID                          0x00000020
402 #define ATTR_CMN_OBJPERMANENTID                 0x00000040
403 #define ATTR_CMN_PAROBJID                       0x00000080
404 #define ATTR_CMN_SCRIPT                         0x00000100
405 #define ATTR_CMN_CRTIME                         0x00000200
406 #define ATTR_CMN_MODTIME                        0x00000400
407 #define ATTR_CMN_CHGTIME                        0x00000800
408 #define ATTR_CMN_ACCTIME                        0x00001000
409 #define ATTR_CMN_BKUPTIME                       0x00002000
410 #define ATTR_CMN_FNDRINFO                       0x00004000
411 #define ATTR_CMN_OWNERID                        0x00008000
412 #define ATTR_CMN_GRPID                          0x00010000
413 #define ATTR_CMN_ACCESSMASK                     0x00020000
414 #define ATTR_CMN_FLAGS                          0x00040000
415 
416 /* The following were defined as:				*/
417 /*      #define ATTR_CMN_NAMEDATTRCOUNT		0x00080000	*/
418 /*      #define ATTR_CMN_NAMEDATTRLIST		0x00100000	*/
419 /* These bits have been salvaged for use as:			*/
420 /*	#define ATTR_CMN_GEN_COUNT		0x00080000	*/
421 /*	#define ATTR_CMN_DOCUMENT_ID		0x00100000	*/
422 /* They can only be used with the  FSOPT_ATTR_CMN_EXTENDED	*/
423 /* option flag.                                                 */
424 
425 #define ATTR_CMN_GEN_COUNT                      0x00080000
426 #define ATTR_CMN_DOCUMENT_ID                    0x00100000
427 
428 #define ATTR_CMN_USERACCESS                     0x00200000
429 #define ATTR_CMN_EXTENDED_SECURITY              0x00400000
430 #define ATTR_CMN_UUID                           0x00800000
431 #define ATTR_CMN_GRPUUID                        0x01000000
432 #define ATTR_CMN_FILEID                         0x02000000
433 #define ATTR_CMN_PARENTID                       0x04000000
434 #define ATTR_CMN_FULLPATH                       0x08000000
435 #define ATTR_CMN_ADDEDTIME                      0x10000000
436 #define ATTR_CMN_ERROR                          0x20000000
437 #define ATTR_CMN_DATA_PROTECT_FLAGS             0x40000000
438 
439 /*
440  * ATTR_CMN_RETURNED_ATTRS is only valid with getattrlist(2) and
441  * getattrlistbulk(2). It is always the first attribute in the return buffer.
442  */
443 #define ATTR_CMN_RETURNED_ATTRS                 0x80000000
444 
445 #define ATTR_CMN_VALIDMASK                      0xFFFFFFFF
446 /*
447  * The settable ATTR_CMN_* attributes include the following:
448  * ATTR_CMN_SCRIPT
449  * ATTR_CMN_CRTIME
450  * ATTR_CMN_MODTIME
451  * ATTR_CMN_CHGTIME
452  *
453  * ATTR_CMN_ACCTIME
454  * ATTR_CMN_BKUPTIME
455  * ATTR_CMN_FNDRINFO
456  * ATTR_CMN_OWNERID
457  *
458  * ATTR_CMN_GRPID
459  * ATTR_CMN_ACCESSMASK
460  * ATTR_CMN_FLAGS
461  *
462  * ATTR_CMN_EXTENDED_SECURITY
463  * ATTR_CMN_UUID
464  *
465  * ATTR_CMN_GRPUUID
466  *
467  * ATTR_CMN_DATA_PROTECT_FLAGS
468  */
469 #define ATTR_CMN_SETMASK                        0x51C7FF00
470 #define ATTR_CMN_VOLSETMASK                     0x00006700
471 
472 #define ATTR_VOL_FSTYPE                         0x00000001
473 #define ATTR_VOL_SIGNATURE                      0x00000002
474 #define ATTR_VOL_SIZE                           0x00000004
475 #define ATTR_VOL_SPACEFREE                      0x00000008
476 #define ATTR_VOL_SPACEAVAIL                     0x00000010
477 #define ATTR_VOL_MINALLOCATION                  0x00000020
478 #define ATTR_VOL_ALLOCATIONCLUMP                0x00000040
479 #define ATTR_VOL_IOBLOCKSIZE                    0x00000080
480 #define ATTR_VOL_OBJCOUNT                       0x00000100
481 #define ATTR_VOL_FILECOUNT                      0x00000200
482 #define ATTR_VOL_DIRCOUNT                       0x00000400
483 #define ATTR_VOL_MAXOBJCOUNT                    0x00000800
484 #define ATTR_VOL_MOUNTPOINT                     0x00001000
485 #define ATTR_VOL_NAME                           0x00002000
486 #define ATTR_VOL_MOUNTFLAGS                     0x00004000
487 #define ATTR_VOL_MOUNTEDDEVICE                  0x00008000
488 #define ATTR_VOL_ENCODINGSUSED                  0x00010000
489 #define ATTR_VOL_CAPABILITIES                   0x00020000
490 #define ATTR_VOL_UUID                           0x00040000
491 #define ATTR_VOL_SPACEUSED                      0x00800000
492 #define ATTR_VOL_QUOTA_SIZE                     0x10000000
493 #define ATTR_VOL_RESERVED_SIZE          0x20000000
494 #define ATTR_VOL_ATTRIBUTES                     0x40000000
495 #define ATTR_VOL_INFO                           0x80000000
496 
497 #define ATTR_VOL_VALIDMASK                      0xF087FFFF
498 
499 /*
500  * The list of settable ATTR_VOL_* attributes include the following:
501  * ATTR_VOL_NAME
502  * ATTR_VOL_INFO
503  */
504 #define ATTR_VOL_SETMASK                        0x80002000
505 
506 
507 /* File/directory attributes: */
508 #define ATTR_DIR_LINKCOUNT                      0x00000001
509 #define ATTR_DIR_ENTRYCOUNT                     0x00000002
510 #define ATTR_DIR_MOUNTSTATUS                    0x00000004
511 #define ATTR_DIR_ALLOCSIZE                      0x00000008
512 #define ATTR_DIR_IOBLOCKSIZE                    0x00000010
513 #define ATTR_DIR_DATALENGTH                     0x00000020
514 
515 /* ATTR_DIR_MOUNTSTATUS Flags: */
516 #define   DIR_MNTSTATUS_MNTPOINT                0x00000001
517 #define   DIR_MNTSTATUS_TRIGGER                 0x00000002
518 
519 #define ATTR_DIR_VALIDMASK                      0x0000003f
520 #define ATTR_DIR_SETMASK                        0x00000000
521 
522 #define ATTR_FILE_LINKCOUNT                     0x00000001
523 #define ATTR_FILE_TOTALSIZE                     0x00000002
524 #define ATTR_FILE_ALLOCSIZE                     0x00000004
525 #define ATTR_FILE_IOBLOCKSIZE                   0x00000008
526 #define ATTR_FILE_DEVTYPE                       0x00000020
527 #define ATTR_FILE_FORKCOUNT                     0x00000080
528 #define ATTR_FILE_FORKLIST                      0x00000100
529 #define ATTR_FILE_DATALENGTH                    0x00000200
530 #define ATTR_FILE_DATAALLOCSIZE                 0x00000400
531 #define ATTR_FILE_RSRCLENGTH                    0x00001000
532 #define ATTR_FILE_RSRCALLOCSIZE                 0x00002000
533 
534 #define ATTR_FILE_VALIDMASK                     0x000037FF
535 /*
536  * Settable ATTR_FILE_* attributes include:
537  * ATTR_FILE_DEVTYPE
538  */
539 #define ATTR_FILE_SETMASK                       0x00000020
540 
541 /* CMNEXT attributes extend the common attributes, but in the forkattr field */
542 #define ATTR_CMNEXT_RELPATH     0x00000004
543 #define ATTR_CMNEXT_PRIVATESIZE 0x00000008
544 #define ATTR_CMNEXT_LINKID      0x00000010
545 #define ATTR_CMNEXT_NOFIRMLINKPATH     0x00000020
546 #define ATTR_CMNEXT_REALDEVID   0x00000040
547 #define ATTR_CMNEXT_REALFSID    0x00000080
548 #define ATTR_CMNEXT_CLONEID     0x00000100
549 #define ATTR_CMNEXT_EXT_FLAGS   0x00000200
550 #define ATTR_CMNEXT_RECURSIVE_GENCOUNT 0x00000400
551 
552 #define ATTR_CMNEXT_VALIDMASK   0x000007fc
553 #define ATTR_CMNEXT_SETMASK             0x00000000
554 
555 /* Deprecated fork attributes */
556 #define ATTR_FORK_TOTALSIZE                     0x00000001
557 #define ATTR_FORK_ALLOCSIZE                     0x00000002
558 #define ATTR_FORK_RESERVED                      0xffffffff
559 
560 #define ATTR_FORK_VALIDMASK                     0x00000003
561 #define ATTR_FORK_SETMASK                       0x00000000
562 
563 /* Obsolete, implemented, not supported */
564 #define ATTR_CMN_NAMEDATTRCOUNT                 0x00080000
565 #define ATTR_CMN_NAMEDATTRLIST                  0x00100000
566 #define ATTR_FILE_CLUMPSIZE                     0x00000010      /* obsolete */
567 #define ATTR_FILE_FILETYPE                      0x00000040      /* always zero */
568 #define ATTR_FILE_DATAEXTENTS                   0x00000800      /* obsolete, HFS-specific */
569 #define ATTR_FILE_RSRCEXTENTS                   0x00004000      /* obsolete, HFS-specific */
570 
571 /* Required attributes for getattrlistbulk(2) */
572 #define ATTR_BULK_REQUIRED (ATTR_CMN_NAME | ATTR_CMN_RETURNED_ATTRS)
573 
574 /*
575  * Searchfs
576  */
577 #define SRCHFS_START                            0x00000001
578 #define SRCHFS_MATCHPARTIALNAMES                0x00000002
579 #define SRCHFS_MATCHDIRS                        0x00000004
580 #define SRCHFS_MATCHFILES                       0x00000008
581 #define SRCHFS_SKIPLINKS                        0x00000010
582 #define SRCHFS_SKIPINVISIBLE                    0x00000020
583 #define SRCHFS_SKIPPACKAGES                     0x00000040
584 #define SRCHFS_SKIPINAPPROPRIATE                0x00000080
585 
586 #define SRCHFS_NEGATEPARAMS                     0x80000000
587 #define SRCHFS_VALIDOPTIONSMASK                 0x800000FF
588 
589 struct fssearchblock {
590 	struct attrlist         *returnattrs;
591 	void                            *returnbuffer;
592 	size_t                          returnbuffersize;
593 	u_long                          maxmatches;
594 	struct timeval          timelimit;
595 	void                            *searchparams1;
596 	size_t                          sizeofsearchparams1;
597 	void                            *searchparams2;
598 	size_t                          sizeofsearchparams2;
599 	struct attrlist         searchattrs;
600 };
601 
602 #ifdef KERNEL
603 /* LP64 version of fssearchblock.  all pointers and longs
604  * grow when we're dealing with a 64-bit process.
605  * WARNING - keep in sync with fssearchblock
606  */
607 
608 struct user64_fssearchblock {
609 	user64_addr_t         returnattrs;
610 	user64_addr_t         returnbuffer;
611 	user64_size_t         returnbuffersize;
612 	user64_ulong_t        maxmatches;
613 	struct user64_timeval   timelimit;
614 	user64_addr_t         searchparams1;
615 	user64_size_t         sizeofsearchparams1;
616 	user64_addr_t         searchparams2;
617 	user64_size_t         sizeofsearchparams2;
618 	struct attrlist         searchattrs;
619 };
620 
621 struct user32_fssearchblock {
622 	user32_addr_t         returnattrs;
623 	user32_addr_t         returnbuffer;
624 	user32_size_t         returnbuffersize;
625 	user32_ulong_t        maxmatches;
626 	struct user32_timeval   timelimit;
627 	user32_addr_t         searchparams1;
628 	user32_size_t         sizeofsearchparams1;
629 	user32_addr_t         searchparams2;
630 	user32_size_t         sizeofsearchparams2;
631 	struct attrlist         searchattrs;
632 };
633 
634 #endif /* KERNEL */
635 
636 struct searchstate {
637 	uint32_t                        ss_union_flags;         // for SRCHFS_START
638 	uint32_t                        ss_union_layer;         // 0 = top
639 	u_char                          ss_fsstate[548];        // fs private
640 } __attribute__((packed));
641 
642 #define FST_EOF (-1)                            /* end-of-file offset */
643 
644 #endif /* __APPLE_API_UNSTABLE */
645 #endif /* !_SYS_ATTR_H_ */
646