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,
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23  * Please see the License for the specific language governing rights and
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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 
53 #define FSOPT_ATTR_CMN_EXTENDED 0x00000020
54 #define FSOPT_RETURN_REALDEV     0x00000200
55 
56 /* we currently aren't anywhere near this amount for a valid
57  * fssearchblock.sizeofsearchparams1 or fssearchblock.sizeofsearchparams2
58  * but we put a sanity check in to avoid abuse of the value passed in from
59  * user land.
60  */
61 #define SEARCHFS_MAX_SEARCHPARMS  4096
62 
63 typedef u_int32_t text_encoding_t;
64 
65 typedef u_int32_t fsobj_type_t;
66 
67 typedef u_int32_t fsobj_tag_t;
68 
69 typedef u_int32_t fsfile_type_t;
70 
71 typedef u_int32_t fsvolid_t;
72 
73 #include <sys/_types/_fsobj_id_t.h> /* file object id type */
74 
75 typedef u_int32_t attrgroup_t;
76 
77 struct attrlist {
78 	u_short bitmapcount;                    /* number of attr. bit sets in list (should be 5) */
79 	u_int16_t reserved;                     /* (to maintain 4-byte alignment) */
80 	attrgroup_t commonattr;                 /* common attribute group */
81 	attrgroup_t volattr;                    /* Volume attribute group */
82 	attrgroup_t dirattr;                    /* directory attribute group */
83 	attrgroup_t fileattr;                   /* file attribute group */
84 	attrgroup_t forkattr;                   /* fork attribute group */
85 };
86 #define ATTR_BIT_MAP_COUNT 5
87 
88 typedef struct attribute_set {
89 	attrgroup_t commonattr;                 /* common attribute group */
90 	attrgroup_t volattr;                    /* Volume attribute group */
91 	attrgroup_t dirattr;                    /* directory attribute group */
92 	attrgroup_t fileattr;                   /* file attribute group */
93 	attrgroup_t forkattr;                   /* fork attribute group */
94 } attribute_set_t;
95 
96 typedef struct attrreference {
97 	int32_t     attr_dataoffset;
98 	u_int32_t   attr_length;
99 } attrreference_t;
100 
101 /* XXX PPD This is derived from HFSVolumePriv.h and should perhaps be referenced from there? */
102 
103 struct diskextent {
104 	u_int32_t                                       startblock;                             /* first block allocated */
105 	u_int32_t                                       blockcount;                             /* number of blocks allocated */
106 };
107 
108 typedef struct diskextent extentrecord[8];
109 
110 typedef u_int32_t vol_capabilities_set_t[4];
111 
112 #define VOL_CAPABILITIES_FORMAT 0
113 #define VOL_CAPABILITIES_INTERFACES 1
114 #define VOL_CAPABILITIES_RESERVED1 2
115 #define VOL_CAPABILITIES_RESERVED2 3
116 
117 typedef struct vol_capabilities_attr {
118 	vol_capabilities_set_t capabilities;
119 	vol_capabilities_set_t valid;
120 } vol_capabilities_attr_t;
121 
122 /*
123  * XXX this value needs to be raised - 3893388
124  */
125 #define ATTR_MAX_BUFFER         8192
126 
127 /*
128  * VOL_CAP_FMT_PERSISTENTOBJECTIDS: When set, the volume has object IDs
129  * that are persistent (retain their values even when the volume is
130  * unmounted and remounted), and a file or directory can be looked up
131  * by ID.  Volumes that support VolFS and can support Carbon File ID
132  * references should set this bit.
133  *
134  * VOL_CAP_FMT_SYMBOLICLINKS: When set, the volume supports symbolic
135  * links.  The symlink(), readlink(), and lstat() calls all use this
136  * symbolic link.
137  *
138  * VOL_CAP_FMT_HARDLINKS: When set, the volume supports hard links.
139  * The link() call creates hard links.
140  *
141  * VOL_CAP_FMT_JOURNAL: When set, the volume is capable of supporting
142  * a journal used to speed recovery in case of unplanned shutdown
143  * (such as a power outage or crash).  This bit does not necessarily
144  * mean the volume is actively using a journal for recovery.
145  *
146  * VOL_CAP_FMT_JOURNAL_ACTIVE: When set, the volume is currently using
147  * a journal for use in speeding recovery after an unplanned shutdown.
148  * This bit can be set only if VOL_CAP_FMT_JOURNAL is also set.
149  *
150  * VOL_CAP_FMT_NO_ROOT_TIMES: When set, the volume format does not
151  * store reliable times for the root directory, so you should not
152  * depend on them to detect changes, etc.
153  *
154  * VOL_CAP_FMT_SPARSE_FILES: When set, the volume supports sparse files.
155  * That is, files which can have "holes" that have never been written
156  * to, and are not allocated on disk.  Sparse files may have an
157  * allocated size that is less than the file's logical length.
158  *
159  * VOL_CAP_FMT_ZERO_RUNS: For security reasons, parts of a file (runs)
160  * that have never been written to must appear to contain zeroes.  When
161  * this bit is set, the volume keeps track of allocated but unwritten
162  * runs of a file so that it can substitute zeroes without actually
163  * writing zeroes to the media.  This provides performance similar to
164  * sparse files, but not the space savings.
165  *
166  * VOL_CAP_FMT_CASE_SENSITIVE: When set, file and directory names are
167  * case sensitive (upper and lower case are different).  When clear,
168  * an upper case character is equivalent to a lower case character,
169  * and you can't have two names that differ solely in the case of
170  * the characters.
171  *
172  * VOL_CAP_FMT_CASE_PRESERVING: When set, file and directory names
173  * preserve the difference between upper and lower case.  If clear,
174  * the volume may change the case of some characters (typically
175  * making them all upper or all lower case).  A volume that sets
176  * VOL_CAP_FMT_CASE_SENSITIVE should also set VOL_CAP_FMT_CASE_PRESERVING.
177  *
178  * VOL_CAP_FMT_FAST_STATFS: This bit is used as a hint to upper layers
179  * (especially Carbon) that statfs() is fast enough that its results
180  * need not be cached by those upper layers.  A volume that caches
181  * the statfs information in its in-memory structures should set this bit.
182  * A volume that must always read from disk or always perform a network
183  * transaction should not set this bit.
184  *
185  * VOL_CAP_FMT_2TB_FILESIZE: If this bit is set the volume format supports
186  * file sizes larger than 4GB, and potentially up to 2TB; it does not
187  * indicate whether the filesystem supports files larger than that.
188  *
189  * VOL_CAP_FMT_OPENDENYMODES: When set, the volume supports open deny
190  * modes (e.g. "open for read write, deny write"; effectively, mandatory
191  * file locking based on open modes).
192  *
193  * VOL_CAP_FMT_HIDDEN_FILES: When set, the volume supports the UF_HIDDEN
194  * file flag, and the UF_HIDDEN flag is mapped to that volume's native
195  * "hidden" or "invisible" bit (which may be the invisible bit from the
196  * Finder Info extended attribute).
197  *
198  * VOL_CAP_FMT_PATH_FROM_ID:  When set, the volume supports the ability
199  * to derive a pathname to the root of the file system given only the
200  * id of an object.  This also implies that object ids on this file
201  * system are persistent and not recycled.  This is a very specialized
202  * capability and it is assumed that most file systems will not support
203  * it.  Its use is for legacy non-posix APIs like ResolveFileIDRef.
204  *
205  * VOL_CAP_FMT_NO_VOLUME_SIZES: When set, the volume does not support
206  * returning values for total data blocks, available blocks, or free blocks
207  * (as in f_blocks, f_bavail, or f_bfree in "struct statfs").  Historically,
208  * those values were set to 0xFFFFFFFF for volumes that did not support them.
209  *
210  * VOL_CAP_FMT_DECMPFS_COMPRESSION: When set, the volume supports transparent
211  * decompression of compressed files using decmpfs.
212  *
213  * VOL_CAP_FMT_64BIT_OBJECT_IDS: When set, the volume uses object IDs that
214  * are 64-bit. This means that ATTR_CMN_FILEID and ATTR_CMN_PARENTID are the
215  * only legitimate attributes for obtaining object IDs from this volume and the
216  * 32-bit fid_objno fields of the fsobj_id_t returned by ATTR_CMN_OBJID,
217  * ATTR_CMN_OBJPERMID, and ATTR_CMN_PAROBJID are undefined.
218  *
219  * VOL_CAP_FMT_DIR_HARDLINKS: When set, the volume supports directory
220  * hard links.
221  *
222  * VOL_CAP_FMT_DOCUMENT_ID: When set, the volume supports document IDs
223  * (an ID which persists across object ID changes) for document revisions.
224  *
225  * VOL_CAP_FMT_WRITE_GENERATION_COUNT: When set, the volume supports write
226  * generation counts (a count of how many times an object has been modified)
227  *
228  * VOL_CAP_FMT_NO_IMMUTABLE_FILES: When set, the volume does not support
229  * setting the UF_IMMUTABLE flag.
230  *
231  * VOL_CAP_FMT_NO_PERMISSIONS: When set, the volume does not support setting
232  * permissions.
233  *
234  * VOL_CAP_FMT_SHARED_SPACE: When set, the volume supports sharing space with
235  * other filesystems i.e. multiple logical filesystems can exist in the same
236  * "partition". An implication of this is that the filesystem which sets
237  * this capability treats waitfor arguments to VFS_SYNC as bit flags.
238  *
239  * VOL_CAP_FMT_VOL_GROUPS: When set, this volume is part of a volume-group
240  * that implies multiple volumes must be mounted in order to boot and root the
241  * operating system. Typically, this means a read-only system volume and a
242  * writable data volume.
243  *
244  * VOL_CAP_FMT_SEALED: When set, this volume is cryptographically sealed.
245  * Any modifications to volume data or metadata will be detected and may
246  * render the volume unusable.
247  */
248 #define VOL_CAP_FMT_PERSISTENTOBJECTIDS         0x00000001
249 #define VOL_CAP_FMT_SYMBOLICLINKS               0x00000002
250 #define VOL_CAP_FMT_HARDLINKS                   0x00000004
251 #define VOL_CAP_FMT_JOURNAL                     0x00000008
252 #define VOL_CAP_FMT_JOURNAL_ACTIVE              0x00000010
253 #define VOL_CAP_FMT_NO_ROOT_TIMES               0x00000020
254 #define VOL_CAP_FMT_SPARSE_FILES                0x00000040
255 #define VOL_CAP_FMT_ZERO_RUNS                   0x00000080
256 #define VOL_CAP_FMT_CASE_SENSITIVE              0x00000100
257 #define VOL_CAP_FMT_CASE_PRESERVING             0x00000200
258 #define VOL_CAP_FMT_FAST_STATFS                 0x00000400
259 #define VOL_CAP_FMT_2TB_FILESIZE                0x00000800
260 #define VOL_CAP_FMT_OPENDENYMODES               0x00001000
261 #define VOL_CAP_FMT_HIDDEN_FILES                0x00002000
262 #define VOL_CAP_FMT_PATH_FROM_ID                0x00004000
263 #define VOL_CAP_FMT_NO_VOLUME_SIZES             0x00008000
264 #define VOL_CAP_FMT_DECMPFS_COMPRESSION         0x00010000
265 #define VOL_CAP_FMT_64BIT_OBJECT_IDS            0x00020000
266 #define VOL_CAP_FMT_DIR_HARDLINKS               0x00040000
267 #define VOL_CAP_FMT_DOCUMENT_ID                 0x00080000
268 #define VOL_CAP_FMT_WRITE_GENERATION_COUNT      0x00100000
269 #define VOL_CAP_FMT_NO_IMMUTABLE_FILES          0x00200000
270 #define VOL_CAP_FMT_NO_PERMISSIONS              0x00400000
271 #define VOL_CAP_FMT_SHARED_SPACE                0x00800000
272 #define VOL_CAP_FMT_VOL_GROUPS                  0x01000000
273 #define VOL_CAP_FMT_SEALED                      0x02000000
274 
275 /*
276  * VOL_CAP_INT_SEARCHFS: When set, the volume implements the
277  * searchfs() system call (the vnop_searchfs vnode operation).
278  *
279  * VOL_CAP_INT_ATTRLIST: When set, the volume implements the
280  * getattrlist() and setattrlist() system calls (vnop_getattrlist
281  * and vnop_setattrlist vnode operations) for the volume, files,
282  * and directories.  The volume may or may not implement the
283  * readdirattr() system call.  XXX Is there any minimum set
284  * of attributes that should be supported?  To determine the
285  * set of supported attributes, get the ATTR_VOL_ATTRIBUTES
286  * attribute of the volume.
287  *
288  * VOL_CAP_INT_NFSEXPORT: When set, the volume implements exporting
289  * of NFS volumes.
290  *
291  * VOL_CAP_INT_READDIRATTR: When set, the volume implements the
292  * readdirattr() system call (vnop_readdirattr vnode operation).
293  *
294  * VOL_CAP_INT_EXCHANGEDATA: When set, the volume implements the
295  * exchangedata() system call (VNOP_EXCHANGE vnode operation).
296  *
297  * VOL_CAP_INT_COPYFILE: When set, the volume implements the
298  * VOP_COPYFILE vnode operation.  (XXX There should be a copyfile()
299  * system call in <unistd.h>.)
300  *
301  * VOL_CAP_INT_ALLOCATE: When set, the volume implements the
302  * VNOP_ALLOCATE vnode operation, which means it implements the
303  * F_PREALLOCATE selector of fcntl(2).
304  *
305  * VOL_CAP_INT_VOL_RENAME: When set, the volume implements the
306  * ATTR_VOL_NAME attribute for both getattrlist() and setattrlist().
307  * The volume can be renamed by setting ATTR_VOL_NAME with setattrlist().
308  *
309  * VOL_CAP_INT_ADVLOCK: When set, the volume implements POSIX style
310  * byte range locks via vnop_advlock (accessible from fcntl(2)).
311  *
312  * VOL_CAP_INT_FLOCK: When set, the volume implements whole-file flock(2)
313  * style locks via vnop_advlock.  This includes the O_EXLOCK and O_SHLOCK
314  * flags of the open(2) call.
315  *
316  * VOL_CAP_INT_EXTENDED_SECURITY: When set, the volume implements
317  * extended security (ACLs).
318  *
319  * VOL_CAP_INT_USERACCESS:  When set, the volume supports the
320  * ATTR_CMN_USERACCESS attribute (used to get the user's access
321  * mode to the file).
322  *
323  * VOL_CAP_INT_MANLOCK: When set, the volume supports AFP-style
324  * mandatory byte range locks via an ioctl().
325  *
326  * VOL_CAP_INT_EXTENDED_ATTR: When set, the volume implements
327  * native extended attribues.
328  *
329  * VOL_CAP_INT_NAMEDSTREAMS: When set, the volume supports
330  * native named streams.
331  *
332  * VOL_CAP_INT_CLONE: When set, the volume supports clones.
333  *
334  * VOL_CAP_INT_SNAPSHOT: When set, the volume supports snapshots.
335  *
336  * VOL_CAP_INT_RENAME_SWAP: When set, the volume supports swapping
337  * file system objects.
338  *
339  * VOL_CAP_INT_RENAME_EXCL: When set, the volume supports an
340  * exclusive rename operation.
341  *
342  * VOL_CAP_INT_RENAME_OPENFAIL: When set, the volume may fail rename
343  * operations on files that are open.
344  */
345 #define VOL_CAP_INT_SEARCHFS                    0x00000001
346 #define VOL_CAP_INT_ATTRLIST                    0x00000002
347 #define VOL_CAP_INT_NFSEXPORT                   0x00000004
348 #define VOL_CAP_INT_READDIRATTR                 0x00000008
349 #define VOL_CAP_INT_EXCHANGEDATA                0x00000010
350 #define VOL_CAP_INT_COPYFILE                    0x00000020
351 #define VOL_CAP_INT_ALLOCATE                    0x00000040
352 #define VOL_CAP_INT_VOL_RENAME                  0x00000080
353 #define VOL_CAP_INT_ADVLOCK                     0x00000100
354 #define VOL_CAP_INT_FLOCK                       0x00000200
355 #define VOL_CAP_INT_EXTENDED_SECURITY           0x00000400
356 #define VOL_CAP_INT_USERACCESS                  0x00000800
357 #define VOL_CAP_INT_MANLOCK                     0x00001000
358 #define VOL_CAP_INT_NAMEDSTREAMS                0x00002000
359 #define VOL_CAP_INT_EXTENDED_ATTR               0x00004000
360 #define VOL_CAP_INT_CLONE                       0x00010000
361 #define VOL_CAP_INT_SNAPSHOT                    0x00020000
362 #define VOL_CAP_INT_RENAME_SWAP                 0x00040000
363 #define VOL_CAP_INT_RENAME_EXCL                 0x00080000
364 #define VOL_CAP_INT_RENAME_OPENFAIL             0x00100000
365 
366 typedef struct vol_attributes_attr {
367 	attribute_set_t validattr;
368 	attribute_set_t nativeattr;
369 } vol_attributes_attr_t;
370 
371 #define ATTR_CMN_NAME                           0x00000001
372 #define ATTR_CMN_DEVID                          0x00000002
373 #define ATTR_CMN_FSID                           0x00000004
374 #define ATTR_CMN_OBJTYPE                        0x00000008
375 #define ATTR_CMN_OBJTAG                         0x00000010
376 #define ATTR_CMN_OBJID                          0x00000020
377 #define ATTR_CMN_OBJPERMANENTID                 0x00000040
378 #define ATTR_CMN_PAROBJID                       0x00000080
379 #define ATTR_CMN_SCRIPT                         0x00000100
380 #define ATTR_CMN_CRTIME                         0x00000200
381 #define ATTR_CMN_MODTIME                        0x00000400
382 #define ATTR_CMN_CHGTIME                        0x00000800
383 #define ATTR_CMN_ACCTIME                        0x00001000
384 #define ATTR_CMN_BKUPTIME                       0x00002000
385 #define ATTR_CMN_FNDRINFO                       0x00004000
386 #define ATTR_CMN_OWNERID                        0x00008000
387 #define ATTR_CMN_GRPID                          0x00010000
388 #define ATTR_CMN_ACCESSMASK                     0x00020000
389 #define ATTR_CMN_FLAGS                          0x00040000
390 
391 /* The following were defined as:				*/
392 /*      #define ATTR_CMN_NAMEDATTRCOUNT		0x00080000	*/
393 /*      #define ATTR_CMN_NAMEDATTRLIST		0x00100000	*/
394 /* These bits have been salvaged for use as:			*/
395 /*	#define ATTR_CMN_GEN_COUNT		0x00080000	*/
396 /*	#define ATTR_CMN_DOCUMENT_ID		0x00100000	*/
397 /* They can only be used with the  FSOPT_ATTR_CMN_EXTENDED	*/
398 /* option flag.                                                 */
399 
400 #define ATTR_CMN_GEN_COUNT                      0x00080000
401 #define ATTR_CMN_DOCUMENT_ID                    0x00100000
402 
403 #define ATTR_CMN_USERACCESS                     0x00200000
404 #define ATTR_CMN_EXTENDED_SECURITY              0x00400000
405 #define ATTR_CMN_UUID                           0x00800000
406 #define ATTR_CMN_GRPUUID                        0x01000000
407 #define ATTR_CMN_FILEID                         0x02000000
408 #define ATTR_CMN_PARENTID                       0x04000000
409 #define ATTR_CMN_FULLPATH                       0x08000000
410 #define ATTR_CMN_ADDEDTIME                      0x10000000
411 #define ATTR_CMN_ERROR                          0x20000000
412 #define ATTR_CMN_DATA_PROTECT_FLAGS             0x40000000
413 
414 /*
415  * ATTR_CMN_RETURNED_ATTRS is only valid with getattrlist(2) and
416  * getattrlistbulk(2). It is always the first attribute in the return buffer.
417  */
418 #define ATTR_CMN_RETURNED_ATTRS                 0x80000000
419 
420 #define ATTR_CMN_VALIDMASK                      0xFFFFFFFF
421 /*
422  * The settable ATTR_CMN_* attributes include the following:
423  * ATTR_CMN_SCRIPT
424  * ATTR_CMN_CRTIME
425  * ATTR_CMN_MODTIME
426  * ATTR_CMN_CHGTIME
427  *
428  * ATTR_CMN_ACCTIME
429  * ATTR_CMN_BKUPTIME
430  * ATTR_CMN_FNDRINFO
431  * ATTR_CMN_OWNERID
432  *
433  * ATTR_CMN_GRPID
434  * ATTR_CMN_ACCESSMASK
435  * ATTR_CMN_FLAGS
436  *
437  * ATTR_CMN_EXTENDED_SECURITY
438  * ATTR_CMN_UUID
439  *
440  * ATTR_CMN_GRPUUID
441  *
442  * ATTR_CMN_DATA_PROTECT_FLAGS
443  */
444 #define ATTR_CMN_SETMASK                        0x51C7FF00
445 #define ATTR_CMN_VOLSETMASK                     0x00006700
446 
447 #define ATTR_VOL_FSTYPE                         0x00000001
448 #define ATTR_VOL_SIGNATURE                      0x00000002
449 #define ATTR_VOL_SIZE                           0x00000004
450 #define ATTR_VOL_SPACEFREE                      0x00000008
451 #define ATTR_VOL_SPACEAVAIL                     0x00000010
452 #define ATTR_VOL_MINALLOCATION                  0x00000020
453 #define ATTR_VOL_ALLOCATIONCLUMP                0x00000040
454 #define ATTR_VOL_IOBLOCKSIZE                    0x00000080
455 #define ATTR_VOL_OBJCOUNT                       0x00000100
456 #define ATTR_VOL_FILECOUNT                      0x00000200
457 #define ATTR_VOL_DIRCOUNT                       0x00000400
458 #define ATTR_VOL_MAXOBJCOUNT                    0x00000800
459 #define ATTR_VOL_MOUNTPOINT                     0x00001000
460 #define ATTR_VOL_NAME                           0x00002000
461 #define ATTR_VOL_MOUNTFLAGS                     0x00004000
462 #define ATTR_VOL_MOUNTEDDEVICE                  0x00008000
463 #define ATTR_VOL_ENCODINGSUSED                  0x00010000
464 #define ATTR_VOL_CAPABILITIES                   0x00020000
465 #define ATTR_VOL_UUID                           0x00040000
466 #define ATTR_VOL_QUOTA_SIZE                     0x10000000
467 #define ATTR_VOL_RESERVED_SIZE          0x20000000
468 #define ATTR_VOL_ATTRIBUTES                     0x40000000
469 #define ATTR_VOL_INFO                           0x80000000
470 
471 #define ATTR_VOL_VALIDMASK                      0xF007FFFF
472 
473 /*
474  * The list of settable ATTR_VOL_* attributes include the following:
475  * ATTR_VOL_NAME
476  * ATTR_VOL_INFO
477  */
478 #define ATTR_VOL_SETMASK                        0x80002000
479 
480 
481 /* File/directory attributes: */
482 #define ATTR_DIR_LINKCOUNT                      0x00000001
483 #define ATTR_DIR_ENTRYCOUNT                     0x00000002
484 #define ATTR_DIR_MOUNTSTATUS                    0x00000004
485 #define ATTR_DIR_ALLOCSIZE                      0x00000008
486 #define ATTR_DIR_IOBLOCKSIZE                    0x00000010
487 #define ATTR_DIR_DATALENGTH                     0x00000020
488 
489 /* ATTR_DIR_MOUNTSTATUS Flags: */
490 #define   DIR_MNTSTATUS_MNTPOINT                0x00000001
491 #define   DIR_MNTSTATUS_TRIGGER                 0x00000002
492 
493 #define ATTR_DIR_VALIDMASK                      0x0000003f
494 #define ATTR_DIR_SETMASK                        0x00000000
495 
496 #define ATTR_FILE_LINKCOUNT                     0x00000001
497 #define ATTR_FILE_TOTALSIZE                     0x00000002
498 #define ATTR_FILE_ALLOCSIZE                     0x00000004
499 #define ATTR_FILE_IOBLOCKSIZE                   0x00000008
500 #define ATTR_FILE_DEVTYPE                       0x00000020
501 #define ATTR_FILE_FORKCOUNT                     0x00000080
502 #define ATTR_FILE_FORKLIST                      0x00000100
503 #define ATTR_FILE_DATALENGTH                    0x00000200
504 #define ATTR_FILE_DATAALLOCSIZE                 0x00000400
505 #define ATTR_FILE_RSRCLENGTH                    0x00001000
506 #define ATTR_FILE_RSRCALLOCSIZE                 0x00002000
507 
508 #define ATTR_FILE_VALIDMASK                     0x000037FF
509 /*
510  * Settable ATTR_FILE_* attributes include:
511  * ATTR_FILE_DEVTYPE
512  */
513 #define ATTR_FILE_SETMASK                       0x00000020
514 
515 /* CMNEXT attributes extend the common attributes, but in the forkattr field */
516 #define ATTR_CMNEXT_RELPATH     0x00000004
517 #define ATTR_CMNEXT_PRIVATESIZE 0x00000008
518 #define ATTR_CMNEXT_LINKID      0x00000010
519 #define ATTR_CMNEXT_NOFIRMLINKPATH     0x00000020
520 #define ATTR_CMNEXT_REALDEVID   0x00000040
521 #define ATTR_CMNEXT_REALFSID    0x00000080
522 #define ATTR_CMNEXT_CLONEID     0x00000100
523 #define ATTR_CMNEXT_EXT_FLAGS   0x00000200
524 #define ATTR_CMNEXT_RECURSIVE_GENCOUNT 0x00000400
525 
526 #define ATTR_CMNEXT_VALIDMASK   0x000007fc
527 #define ATTR_CMNEXT_SETMASK             0x00000000
528 
529 /* Deprecated fork attributes */
530 #define ATTR_FORK_TOTALSIZE                     0x00000001
531 #define ATTR_FORK_ALLOCSIZE                     0x00000002
532 #define ATTR_FORK_RESERVED                      0xffffffff
533 
534 #define ATTR_FORK_VALIDMASK                     0x00000003
535 #define ATTR_FORK_SETMASK                       0x00000000
536 
537 /* Obsolete, implemented, not supported */
538 #define ATTR_CMN_NAMEDATTRCOUNT                 0x00080000
539 #define ATTR_CMN_NAMEDATTRLIST                  0x00100000
540 #define ATTR_FILE_CLUMPSIZE                     0x00000010      /* obsolete */
541 #define ATTR_FILE_FILETYPE                      0x00000040      /* always zero */
542 #define ATTR_FILE_DATAEXTENTS                   0x00000800      /* obsolete, HFS-specific */
543 #define ATTR_FILE_RSRCEXTENTS                   0x00004000      /* obsolete, HFS-specific */
544 
545 /* Required attributes for getattrlistbulk(2) */
546 #define ATTR_BULK_REQUIRED (ATTR_CMN_NAME | ATTR_CMN_RETURNED_ATTRS)
547 
548 /*
549  * Searchfs
550  */
551 #define SRCHFS_START                            0x00000001
552 #define SRCHFS_MATCHPARTIALNAMES                0x00000002
553 #define SRCHFS_MATCHDIRS                        0x00000004
554 #define SRCHFS_MATCHFILES                       0x00000008
555 #define SRCHFS_SKIPLINKS                        0x00000010
556 #define SRCHFS_SKIPINVISIBLE                    0x00000020
557 #define SRCHFS_SKIPPACKAGES                     0x00000040
558 #define SRCHFS_SKIPINAPPROPRIATE                0x00000080
559 
560 #define SRCHFS_NEGATEPARAMS                     0x80000000
561 #define SRCHFS_VALIDOPTIONSMASK                 0x800000FF
562 
563 struct fssearchblock {
564 	struct attrlist         *returnattrs;
565 	void                            *returnbuffer;
566 	size_t                          returnbuffersize;
567 	u_long                          maxmatches;
568 	struct timeval          timelimit;
569 	void                            *searchparams1;
570 	size_t                          sizeofsearchparams1;
571 	void                            *searchparams2;
572 	size_t                          sizeofsearchparams2;
573 	struct attrlist         searchattrs;
574 };
575 
576 
577 struct searchstate {
578 	uint32_t                        ss_union_flags;         // for SRCHFS_START
579 	uint32_t                        ss_union_layer;         // 0 = top
580 	u_char                          ss_fsstate[548];        // fs private
581 } __attribute__((packed));
582 
583 #define FST_EOF (-1)                            /* end-of-file offset */
584 
585 #endif /* __APPLE_API_UNSTABLE */
586 #endif /* !_SYS_ATTR_H_ */