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