bsd/sys/attr.h

   1 /*
   2  * Copyright (c) 2000-2010 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
  57
  58 /* we currently aren't anywhere near this amount for a valid
  59  * fssearchblock.sizeofsearchparams1 or fssearchblock.sizeofsearchparams2
  60  * but we put a sanity check in to avoid abuse of the value passed in from
  61  * user land.
  62  */
  63 #define SEARCHFS_MAX_SEARCHPARMS  4096
  64
  65 typedef u_int32_t text_encoding_t;
  66
  67 typedef u_int32_t fsobj_type_t;
  68
  69 typedef u_int32_t fsobj_tag_t;
  70
  71 typedef u_int32_t fsfile_type_t;
  72
  73 typedef u_int32_t fsvolid_t;
  74
  75 typedef struct fsobj_id {
  76         u_int32_t               fid_objno;
  77         u_int32_t               fid_generation;
  78 } fsobj_id_t;
  79
  80 typedef u_int32_t attrgroup_t;
  81
  82 struct attrlist {
  83         u_short bitmapcount;                    /* number of attr. bit sets in list (should be 5) */
  84         u_int16_t reserved;                             /* (to maintain 4-byte alignment) */
  85         attrgroup_t commonattr;                 /* common attribute group */
  86         attrgroup_t volattr;                    /* Volume attribute group */
  87         attrgroup_t dirattr;                    /* directory attribute group */
  88         attrgroup_t fileattr;                   /* file attribute group */
  89         attrgroup_t forkattr;                   /* fork attribute group */
  90 };
  91 #define ATTR_BIT_MAP_COUNT 5
  92
  93 typedef struct attribute_set {
  94         attrgroup_t commonattr;                 /* common attribute group */
  95         attrgroup_t volattr;                    /* Volume attribute group */
  96         attrgroup_t dirattr;                    /* directory attribute group */
  97         attrgroup_t fileattr;                   /* file attribute group */
  98         attrgroup_t forkattr;                   /* fork attribute group */
  99 } attribute_set_t;
 100
 101 typedef struct attrreference {
 102         int32_t     attr_dataoffset;
 103         u_int32_t   attr_length;
 104 } attrreference_t;
 105
 106 /* XXX PPD This is derived from HFSVolumePriv.h and should perhaps be referenced from there? */
 107
 108 struct diskextent {
 109         u_int32_t                                       startblock;                             /* first block allocated */
 110         u_int32_t                                       blockcount;                             /* number of blocks allocated */
 111 };
 112
 113 typedef struct diskextent extentrecord[8];
 114
 115 typedef u_int32_t vol_capabilities_set_t[4];
 116
 117 #define VOL_CAPABILITIES_FORMAT 0
 118 #define VOL_CAPABILITIES_INTERFACES 1
 119 #define VOL_CAPABILITIES_RESERVED1 2
 120 #define VOL_CAPABILITIES_RESERVED2 3
 121
 122 typedef struct vol_capabilities_attr {
 123         vol_capabilities_set_t capabilities;
 124         vol_capabilities_set_t valid;
 125 } vol_capabilities_attr_t;
 126
 127 /*
 128  * XXX this value needs to be raised - 3893388
 129  */
 130 #define ATTR_MAX_BUFFER         8192
 131
 132 /*
 133  * VOL_CAP_FMT_PERSISTENTOBJECTIDS: When set, the volume has object IDs
 134  * that are persistent (retain their values even when the volume is
 135  * unmounted and remounted), and a file or directory can be looked up
 136  * by ID.  Volumes that support VolFS and can support Carbon File ID
 137  * references should set this bit.
 138  *
 139  * VOL_CAP_FMT_SYMBOLICLINKS: When set, the volume supports symbolic
 140  * links.  The symlink(), readlink(), and lstat() calls all use this
 141  * symbolic link.
 142  *
 143  * VOL_CAP_FMT_HARDLINKS: When set, the volume supports hard links.
 144  * The link() call creates hard links.
 145  *
 146  * VOL_CAP_FMT_JOURNAL: When set, the volume is capable of supporting
 147  * a journal used to speed recovery in case of unplanned shutdown
 148  * (such as a power outage or crash).  This bit does not necessarily
 149  * mean the volume is actively using a journal for recovery.
 150  *
 151  * VOL_CAP_FMT_JOURNAL_ACTIVE: When set, the volume is currently using
 152  * a journal for use in speeding recovery after an unplanned shutdown.
 153  * This bit can be set only if VOL_CAP_FMT_JOURNAL is also set.
 154  *
 155  * VOL_CAP_FMT_NO_ROOT_TIMES: When set, the volume format does not
 156  * store reliable times for the root directory, so you should not
 157  * depend on them to detect changes, etc.
 158  *
 159  * VOL_CAP_FMT_SPARSE_FILES: When set, the volume supports sparse files.
 160  * That is, files which can have "holes" that have never been written
 161  * to, and are not allocated on disk.  Sparse files may have an
 162  * allocated size that is less than the file's logical length.
 163  *
 164  * VOL_CAP_FMT_ZERO_RUNS: For security reasons, parts of a file (runs)
 165  * that have never been written to must appear to contain zeroes.  When
 166  * this bit is set, the volume keeps track of allocated but unwritten
 167  * runs of a file so that it can substitute zeroes without actually
 168  * writing zeroes to the media.  This provides performance similar to
 169  * sparse files, but not the space savings.
 170  *
 171  * VOL_CAP_FMT_CASE_SENSITIVE: When set, file and directory names are
 172  * case sensitive (upper and lower case are different).  When clear,
 173  * an upper case character is equivalent to a lower case character,
 174  * and you can't have two names that differ solely in the case of
 175  * the characters.
 176  *
 177  * VOL_CAP_FMT_CASE_PRESERVING: When set, file and directory names
 178  * preserve the difference between upper and lower case.  If clear,
 179  * the volume may change the case of some characters (typically
 180  * making them all upper or all lower case).  A volume that sets
 181  * VOL_CAP_FMT_CASE_SENSITIVE should also set VOL_CAP_FMT_CASE_PRESERVING.
 182  *
 183  * VOL_CAP_FMT_FAST_STATFS: This bit is used as a hint to upper layers
 184  * (especially Carbon) that statfs() is fast enough that its results
 185  * need not be cached by those upper layers.  A volume that caches
 186  * the statfs information in its in-memory structures should set this bit.
 187  * A volume that must always read from disk or always perform a network
 188  * transaction should not set this bit.
 189  *
 190  * VOL_CAP_FMT_2TB_FILESIZE: If this bit is set the volume format supports
 191  * file sizes larger than 4GB, and potentially up to 2TB; it does not
 192  * indicate whether the filesystem supports files larger than that.
 193  *
 194  * VOL_CAP_FMT_OPENDENYMODES: When set, the volume supports open deny
 195  * modes (e.g. "open for read write, deny write"; effectively, mandatory
 196  * file locking based on open modes).
 197  *
 198  * VOL_CAP_FMT_HIDDEN_FILES: When set, the volume supports the UF_HIDDEN
 199  * file flag, and the UF_HIDDEN flag is mapped to that volume's native
 200  * "hidden" or "invisible" bit (which may be the invisible bit from the
 201  * Finder Info extended attribute).
 202  *
 203  * VOL_CAP_FMT_PATH_FROM_ID:  When set, the volume supports the ability
 204  * to derive a pathname to the root of the file system given only the
 205  * id of an object.  This also implies that object ids on this file
 206  * system are persistent and not recycled.  This is a very specialized
 207  * capability and it is assumed that most file systems will not support
 208  * it.  Its use is for legacy non-posix APIs like ResolveFileIDRef.
 209  *
 210  * VOL_CAP_FMT_NO_VOLUME_SIZES: When set, the volume does not support
 211  * returning values for total data blocks, available blocks, or free blocks
 212  * (as in f_blocks, f_bavail, or f_bfree in "struct statfs").  Historically,
 213  * those values were set to 0xFFFFFFFF for volumes that did not support them.
 214  *
 215  * VOL_CAP_FMT_DECMPFS_COMPRESSION: When set, the volume supports transparent
 216  * decompression of compressed files using decmpfs.
 217  *
 218  * VOL_CAP_FMT_64BIT_OBJECT_IDS: When set, the volume uses object IDs that
 219  * are 64-bit. This means that ATTR_CMN_FILEID and ATTR_CMN_PARENTID are the
 220  * only legitimate attributes for obtaining object IDs from this volume and the
 221  * 32-bit fid_objno fields of the fsobj_id_t returned by ATTR_CMN_OBJID,
 222  * ATTR_CMN_OBJPERMID, and ATTR_CMN_PAROBJID are undefined.
 223  */
 224 #define VOL_CAP_FMT_PERSISTENTOBJECTIDS         0x00000001
 225 #define VOL_CAP_FMT_SYMBOLICLINKS               0x00000002
 226 #define VOL_CAP_FMT_HARDLINKS                   0x00000004
 227 #define VOL_CAP_FMT_JOURNAL                     0x00000008
 228 #define VOL_CAP_FMT_JOURNAL_ACTIVE              0x00000010
 229 #define VOL_CAP_FMT_NO_ROOT_TIMES               0x00000020
 230 #define VOL_CAP_FMT_SPARSE_FILES                0x00000040
 231 #define VOL_CAP_FMT_ZERO_RUNS                   0x00000080
 232 #define VOL_CAP_FMT_CASE_SENSITIVE              0x00000100
 233 #define VOL_CAP_FMT_CASE_PRESERVING             0x00000200
 234 #define VOL_CAP_FMT_FAST_STATFS                 0x00000400
 235 #define VOL_CAP_FMT_2TB_FILESIZE                0x00000800
 236 #define VOL_CAP_FMT_OPENDENYMODES               0x00001000
 237 #define VOL_CAP_FMT_HIDDEN_FILES                0x00002000
 238 #define VOL_CAP_FMT_PATH_FROM_ID                0x00004000
 239 #define VOL_CAP_FMT_NO_VOLUME_SIZES             0x00008000
 240 #define VOL_CAP_FMT_DECMPFS_COMPRESSION         0x00010000
 241 #define VOL_CAP_FMT_64BIT_OBJECT_IDS            0x00020000
 242
 243
 244 /*
 245  * VOL_CAP_INT_SEARCHFS: When set, the volume implements the
 246  * searchfs() system call (the vnop_searchfs vnode operation).
 247  *
 248  * VOL_CAP_INT_ATTRLIST: When set, the volume implements the
 249  * getattrlist() and setattrlist() system calls (vnop_getattrlist
 250  * and vnop_setattrlist vnode operations) for the volume, files,
 251  * and directories.  The volume may or may not implement the
 252  * readdirattr() system call.  XXX Is there any minimum set
 253  * of attributes that should be supported?  To determine the
 254  * set of supported attributes, get the ATTR_VOL_ATTRIBUTES
 255  * attribute of the volume.
 256  *
 257  * VOL_CAP_INT_NFSEXPORT: When set, the volume implements exporting
 258  * of NFS volumes.
 259  *
 260  * VOL_CAP_INT_READDIRATTR: When set, the volume implements the
 261  * readdirattr() system call (vnop_readdirattr vnode operation).
 262  *
 263  * VOL_CAP_INT_EXCHANGEDATA: When set, the volume implements the
 264  * exchangedata() system call (VNOP_EXCHANGE vnode operation).
 265  *
 266  * VOL_CAP_INT_COPYFILE: When set, the volume implements the
 267  * VOP_COPYFILE vnode operation.  (XXX There should be a copyfile()
 268  * system call in <unistd.h>.)
 269  *
 270  * VOL_CAP_INT_ALLOCATE: When set, the volume implements the
 271  * VNOP_ALLOCATE vnode operation, which means it implements the
 272  * F_PREALLOCATE selector of fcntl(2).
 273  *
 274  * VOL_CAP_INT_VOL_RENAME: When set, the volume implements the
 275  * ATTR_VOL_NAME attribute for both getattrlist() and setattrlist().
 276  * The volume can be renamed by setting ATTR_VOL_NAME with setattrlist().
 277  *
 278  * VOL_CAP_INT_ADVLOCK: When set, the volume implements POSIX style
 279  * byte range locks via vnop_advlock (accessible from fcntl(2)).
 280  *
 281  * VOL_CAP_INT_FLOCK: When set, the volume implements whole-file flock(2)
 282  * style locks via vnop_advlock.  This includes the O_EXLOCK and O_SHLOCK
 283  * flags of the open(2) call.
 284  *
 285  * VOL_CAP_INT_EXTENDED_SECURITY: When set, the volume implements
 286  * extended security (ACLs).
 287  *
 288  * VOL_CAP_INT_USERACCESS:  When set, the volume supports the
 289  * ATTR_CMN_USERACCESS attribute (used to get the user's access
 290  * mode to the file).
 291  *
 292  * VOL_CAP_INT_MANLOCK: When set, the volume supports AFP-style
 293  * mandatory byte range locks via an ioctl().
 294  *
 295  * VOL_CAP_INT_EXTENDED_ATTR: When set, the volume implements
 296  * native extended attribues.
 297  *
 298  * VOL_CAP_INT_NAMEDSTREAMS: When set, the volume supports
 299  * native named streams.
 300  */
 301 #define VOL_CAP_INT_SEARCHFS                    0x00000001
 302 #define VOL_CAP_INT_ATTRLIST                    0x00000002
 303 #define VOL_CAP_INT_NFSEXPORT                   0x00000004
 304 #define VOL_CAP_INT_READDIRATTR                 0x00000008
 305 #define VOL_CAP_INT_EXCHANGEDATA                0x00000010
 306 #define VOL_CAP_INT_COPYFILE                    0x00000020
 307 #define VOL_CAP_INT_ALLOCATE                    0x00000040
 308 #define VOL_CAP_INT_VOL_RENAME                  0x00000080
 309 #define VOL_CAP_INT_ADVLOCK                     0x00000100
 310 #define VOL_CAP_INT_FLOCK                       0x00000200
 311 #define VOL_CAP_INT_EXTENDED_SECURITY           0x00000400
 312 #define VOL_CAP_INT_USERACCESS                  0x00000800
 313 #define VOL_CAP_INT_MANLOCK                     0x00001000
 314 #define VOL_CAP_INT_NAMEDSTREAMS                0x00002000
 315 #define VOL_CAP_INT_EXTENDED_ATTR               0x00004000
 316 #ifdef PRIVATE
 317 /* Volume supports kqueue notifications for remote events */
 318 #define VOL_CAP_INT_REMOTE_EVENT                0x00008000
 319 #endif /* PRIVATE */
 320
 321 typedef struct vol_attributes_attr {
 322         attribute_set_t validattr;
 323         attribute_set_t nativeattr;
 324 } vol_attributes_attr_t;
 325
 326 #define ATTR_CMN_NAME                           0x00000001
 327 #define ATTR_CMN_DEVID                          0x00000002
 328 #define ATTR_CMN_FSID                           0x00000004
 329 #define ATTR_CMN_OBJTYPE                        0x00000008
 330 #define ATTR_CMN_OBJTAG                         0x00000010
 331 #define ATTR_CMN_OBJID                          0x00000020
 332 #define ATTR_CMN_OBJPERMANENTID                 0x00000040
 333 #define ATTR_CMN_PAROBJID                       0x00000080
 334 #define ATTR_CMN_SCRIPT                         0x00000100
 335 #define ATTR_CMN_CRTIME                         0x00000200
 336 #define ATTR_CMN_MODTIME                        0x00000400
 337 #define ATTR_CMN_CHGTIME                        0x00000800
 338 #define ATTR_CMN_ACCTIME                        0x00001000
 339 #define ATTR_CMN_BKUPTIME                       0x00002000
 340 #define ATTR_CMN_FNDRINFO                       0x00004000
 341 #define ATTR_CMN_OWNERID                        0x00008000
 342 #define ATTR_CMN_GRPID                          0x00010000
 343 #define ATTR_CMN_ACCESSMASK                     0x00020000
 344 #define ATTR_CMN_FLAGS                          0x00040000
 345 /*  #define ATTR_CMN_NAMEDATTRCOUNT             0x00080000       not implemented */
 346 /*  #define ATTR_CMN_NAMEDATTRLIST              0x00100000       not implemented */
 347 #define ATTR_CMN_USERACCESS                     0x00200000
 348 #define ATTR_CMN_EXTENDED_SECURITY              0x00400000
 349 #define ATTR_CMN_UUID                           0x00800000
 350 #define ATTR_CMN_GRPUUID                        0x01000000
 351 #define ATTR_CMN_FILEID                         0x02000000
 352 #define ATTR_CMN_PARENTID                       0x04000000
 353 #define ATTR_CMN_FULLPATH                       0x08000000
 354 #define ATTR_CMN_ADDEDTIME                      0x10000000
 355
 356 /*
 357  * ATTR_CMN_RETURNED_ATTRS is only valid with getattrlist(2).
 358  * It is always the first attribute in the return buffer.
 359  */
 360 #define ATTR_CMN_RETURNED_ATTRS                 0x80000000
 361
 362 #define ATTR_CMN_VALIDMASK                      0x9FE7FFFF
 363 #define ATTR_CMN_SETMASK                        0x01C7FF00
 364 #define ATTR_CMN_VOLSETMASK                     0x00006700
 365
 366 #define ATTR_VOL_FSTYPE                         0x00000001
 367 #define ATTR_VOL_SIGNATURE                      0x00000002
 368 #define ATTR_VOL_SIZE                           0x00000004
 369 #define ATTR_VOL_SPACEFREE                      0x00000008
 370 #define ATTR_VOL_SPACEAVAIL                     0x00000010
 371 #define ATTR_VOL_MINALLOCATION                  0x00000020
 372 #define ATTR_VOL_ALLOCATIONCLUMP                0x00000040
 373 #define ATTR_VOL_IOBLOCKSIZE                    0x00000080
 374 #define ATTR_VOL_OBJCOUNT                       0x00000100
 375 #define ATTR_VOL_FILECOUNT                      0x00000200
 376 #define ATTR_VOL_DIRCOUNT                       0x00000400
 377 #define ATTR_VOL_MAXOBJCOUNT                    0x00000800
 378 #define ATTR_VOL_MOUNTPOINT                     0x00001000
 379 #define ATTR_VOL_NAME                           0x00002000
 380 #define ATTR_VOL_MOUNTFLAGS                     0x00004000
 381 #define ATTR_VOL_MOUNTEDDEVICE                  0x00008000
 382 #define ATTR_VOL_ENCODINGSUSED                  0x00010000
 383 #define ATTR_VOL_CAPABILITIES                   0x00020000
 384 #define ATTR_VOL_UUID                           0x00040000
 385 #define ATTR_VOL_ATTRIBUTES                     0x40000000
 386 #define ATTR_VOL_INFO                           0x80000000
 387
 388 #define ATTR_VOL_VALIDMASK                      0xC007FFFF
 389 #define ATTR_VOL_SETMASK                        0x80002000
 390
 391
 392 /* File/directory attributes: */
 393 #define ATTR_DIR_LINKCOUNT                      0x00000001
 394 #define ATTR_DIR_ENTRYCOUNT                     0x00000002
 395 #define ATTR_DIR_MOUNTSTATUS                    0x00000004
 396 /* ATTR_DIR_MOUNTSTATUS Flags: */
 397 #define   DIR_MNTSTATUS_MNTPOINT                0x00000001
 398 #define   DIR_MNTSTATUS_TRIGGER                 0x00000002
 399
 400 #define ATTR_DIR_VALIDMASK                      0x00000007
 401 #define ATTR_DIR_SETMASK                        0x00000000
 402
 403 #define ATTR_FILE_LINKCOUNT                     0x00000001
 404 #define ATTR_FILE_TOTALSIZE                     0x00000002
 405 #define ATTR_FILE_ALLOCSIZE                     0x00000004
 406 #define ATTR_FILE_IOBLOCKSIZE                   0x00000008
 407 #define ATTR_FILE_DEVTYPE                       0x00000020
 408 #define ATTR_FILE_FORKCOUNT                     0x00000080
 409 #define ATTR_FILE_FORKLIST                      0x00000100
 410 #define ATTR_FILE_DATALENGTH                    0x00000200
 411 #define ATTR_FILE_DATAALLOCSIZE                 0x00000400
 412 #define ATTR_FILE_RSRCLENGTH                    0x00001000
 413 #define ATTR_FILE_RSRCALLOCSIZE                 0x00002000
 414
 415 #define ATTR_FILE_VALIDMASK                     0x000037FF
 416 #define ATTR_FILE_SETMASK                       0x00000020
 417
 418 #define ATTR_FORK_TOTALSIZE                     0x00000001
 419 #define ATTR_FORK_ALLOCSIZE                     0x00000002
 420
 421 #define ATTR_FORK_VALIDMASK                     0x00000003
 422 #define ATTR_FORK_SETMASK                       0x00000000
 423
 424 /* Obsolete, implemented, not supported */
 425 #define ATTR_CMN_NAMEDATTRCOUNT                 0x00080000      /* not implemented */
 426 #define ATTR_CMN_NAMEDATTRLIST                  0x00100000      /* not implemented */
 427 #define ATTR_FILE_CLUMPSIZE                     0x00000010      /* obsolete */
 428 #define ATTR_FILE_FILETYPE                      0x00000040      /* always zero */
 429 #define ATTR_FILE_DATAEXTENTS                   0x00000800      /* obsolete, HFS-specific */
 430 #define ATTR_FILE_RSRCEXTENTS                   0x00004000      /* obsolete, HFS-specific */
 431
 432 /*
 433  * Searchfs
 434  */
 435 #define SRCHFS_START                            0x00000001
 436 #define SRCHFS_MATCHPARTIALNAMES                0x00000002
 437 #define SRCHFS_MATCHDIRS                        0x00000004
 438 #define SRCHFS_MATCHFILES                       0x00000008
 439 #define SRCHFS_SKIPLINKS                        0x00000010
 440 #define SRCHFS_SKIPINVISIBLE                    0x00000020
 441 #define SRCHFS_SKIPPACKAGES                     0x00000040
 442 #define SRCHFS_SKIPINAPPROPRIATE                0x00000080
 443
 444 #define SRCHFS_NEGATEPARAMS                     0x80000000
 445 #define SRCHFS_VALIDOPTIONSMASK                 0x800000FF
 446
 447 struct fssearchblock {
 448         struct attrlist         *returnattrs;
 449         void                            *returnbuffer;
 450         size_t                          returnbuffersize;
 451         u_long                          maxmatches;
 452         struct timeval          timelimit;
 453         void                            *searchparams1;
 454         size_t                          sizeofsearchparams1;
 455         void                            *searchparams2;
 456         size_t                          sizeofsearchparams2;
 457         struct attrlist         searchattrs;
 458 };
 459
 460 #ifdef KERNEL
 461 /* LP64 version of fssearchblock.  all pointers and longs
 462  * grow when we're dealing with a 64-bit process.
 463  * WARNING - keep in sync with fssearchblock
 464  */
 465
 466 struct user64_fssearchblock {
 467         user64_addr_t         returnattrs;
 468         user64_addr_t         returnbuffer;
 469         user64_size_t         returnbuffersize;
 470         user64_ulong_t        maxmatches;
 471         struct user64_timeval   timelimit;
 472         user64_addr_t         searchparams1;
 473         user64_size_t         sizeofsearchparams1;
 474         user64_addr_t         searchparams2;
 475         user64_size_t         sizeofsearchparams2;
 476         struct attrlist         searchattrs;
 477 };
 478
 479 struct user32_fssearchblock {
 480         user32_addr_t         returnattrs;
 481         user32_addr_t         returnbuffer;
 482         user32_size_t         returnbuffersize;
 483         user32_ulong_t        maxmatches;
 484         struct user32_timeval   timelimit;
 485         user32_addr_t         searchparams1;
 486         user32_size_t         sizeofsearchparams1;
 487         user32_addr_t         searchparams2;
 488         user32_size_t         sizeofsearchparams2;
 489         struct attrlist         searchattrs;
 490 };
 491
 492 #endif /* KERNEL */
 493
 494
 495 struct searchstate {
 496         u_char                          reserved[556];          //      sizeof( SearchState )
 497 };
 498
 499
 500 #define FST_EOF (-1)                            /* end-of-file offset */
 501
 502 #endif /* __APPLE_API_UNSTABLE */
 503 #endif /* !_SYS_ATTR_H_ */