bsd/nfs/nfsproto.h

   1 /*
   2  * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
  26 /*
  27  * Copyright (c) 1989, 1993
  28  *      The Regents of the University of California.  All rights reserved.
  29  *
  30  * This code is derived from software contributed to Berkeley by
  31  * Rick Macklem at The University of Guelph.
  32  *
  33  * Redistribution and use in source and binary forms, with or without
  34  * modification, are permitted provided that the following conditions
  35  * are met:
  36  * 1. Redistributions of source code must retain the above copyright
  37  *    notice, this list of conditions and the following disclaimer.
  38  * 2. Redistributions in binary form must reproduce the above copyright
  39  *    notice, this list of conditions and the following disclaimer in the
  40  *    documentation and/or other materials provided with the distribution.
  41  * 3. All advertising materials mentioning features or use of this software
  42  *    must display the following acknowledgement:
  43  *      This product includes software developed by the University of
  44  *      California, Berkeley and its contributors.
  45  * 4. Neither the name of the University nor the names of its contributors
  46  *    may be used to endorse or promote products derived from this software
  47  *    without specific prior written permission.
  48  *
  49  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  50  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  51  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  52  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  53  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  54  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  55  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  56  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  57  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  58  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  59  * SUCH DAMAGE.
  60  *
  61  *      @(#)nfsproto.h  8.2 (Berkeley) 3/30/95
  62  * FreeBSD-Id: nfsproto.h,v 1.3 1997/02/22 09:42:50 peter Exp $
  63  */
  64
  65 #ifndef _NFS_NFSPROTO_H_
  66 #define _NFS_NFSPROTO_H_
  67
  68 #include <sys/appleapiopts.h>
  69
  70 #ifdef __APPLE_API_PRIVATE
  71 /*
  72  * nfs definitions as per the Version 2 and 3 specs
  73  */
  74
  75 /*
  76  * Constants as defined in the Sun NFS Version 2 and 3 specs.
  77  * "NFS: Network File System Protocol Specification" RFC1094
  78  * and in the "NFS: Network File System Version 3 Protocol
  79  * Specification"
  80  */
  81
  82 /* Only define these if nfs_prot.h hasn't been included */
  83 #ifndef NFS_PROGRAM
  84
  85 #define NFS_PORT        2049
  86 #define NFS_PROG        100003
  87 #define NFS_VER2        2
  88 #define NFS_VER3        3
  89 #define NFS_V2MAXDATA   8192
  90 #define NFS_MAXDGRAMDATA 16384
  91 #define NFS_MAXDATA     32768
  92 #define NFS_MAXPATHLEN  1024
  93 #define NFS_MAXNAMLEN   255
  94 #define NFS_MAXPKTHDR   404
  95 #define NFS_MAXPACKET   (NFS_MAXPKTHDR + NFS_MAXDATA)
  96 #define NFS_MINPACKET   20
  97 #define NFS_FABLKSIZE   512     /* Size in bytes of a block wrt fa_blocks */
  98
  99 /* Stat numbers for rpc returns (version 2 and 3) */
 100 #define NFS_OK                  0
 101 #define NFSERR_PERM             1
 102 #define NFSERR_NOENT            2
 103 #define NFSERR_IO               5
 104 #define NFSERR_NXIO             6
 105 #define NFSERR_ACCES            13
 106 #define NFSERR_EXIST            17
 107 #define NFSERR_XDEV             18      /* Version 3 only */
 108 #define NFSERR_NODEV            19
 109 #define NFSERR_NOTDIR           20
 110 #define NFSERR_ISDIR            21
 111 #define NFSERR_INVAL            22      /* Version 3 only */
 112 #define NFSERR_FBIG             27
 113 #define NFSERR_NOSPC            28
 114 #define NFSERR_ROFS             30
 115 #define NFSERR_MLINK            31      /* Version 3 only */
 116 #define NFSERR_NAMETOL          63
 117 #define NFSERR_NOTEMPTY         66
 118 #define NFSERR_DQUOT            69
 119 #define NFSERR_STALE            70
 120 #define NFSERR_REMOTE           71      /* Version 3 only */
 121 #define NFSERR_WFLUSH           99      /* Version 2 only */
 122 #define NFSERR_BADHANDLE        10001   /* The rest Version 3 only */
 123 #define NFSERR_NOT_SYNC         10002
 124 #define NFSERR_BAD_COOKIE       10003
 125 #define NFSERR_NOTSUPP          10004
 126 #define NFSERR_TOOSMALL         10005
 127 #define NFSERR_SERVERFAULT      10006
 128 #define NFSERR_BADTYPE          10007
 129 #define NFSERR_JUKEBOX          10008
 130 #define NFSERR_TRYLATER         NFSERR_JUKEBOX
 131 #define NFSERR_STALEWRITEVERF   30001   /* Fake return for nfs_commit() */
 132
 133 #define NFSERR_RETVOID          0x20000000 /* Return void, not error */
 134 #define NFSERR_AUTHERR          0x40000000 /* Mark an authentication error */
 135 #define NFSERR_RETERR           0x80000000 /* Mark an error return for V3 */
 136
 137 #endif /* !NFS_PROGRAM */
 138
 139 /* Sizes in bytes of various nfs rpc components */
 140 #define NFSX_UNSIGNED   4
 141
 142 /* specific to NFS Version 2 */
 143 #define NFSX_V2FH       32
 144 #define NFSX_V2FATTR    68
 145 #define NFSX_V2SATTR    32
 146 #define NFSX_V2COOKIE   4
 147 #define NFSX_V2STATFS   20
 148
 149 /* specific to NFS Version 3 */
 150 #define NFSX_V3FH               (sizeof (fhandle_t)) /* size this server uses */
 151 #define NFSX_V3FHMAX            64      /* max. allowed by protocol */
 152 #define NFSX_V3FATTR            84
 153 #define NFSX_V3SATTR            60      /* max. all fields filled in */
 154 #define NFSX_V3SRVSATTR         (sizeof (struct nfsv3_sattr))
 155 #define NFSX_V3POSTOPATTR       (NFSX_V3FATTR + NFSX_UNSIGNED)
 156 #define NFSX_V3WCCDATA          (NFSX_V3POSTOPATTR + 8 * NFSX_UNSIGNED)
 157 #define NFSX_V3COOKIEVERF       8
 158 #define NFSX_V3WRITEVERF        8
 159 #define NFSX_V3CREATEVERF       8
 160 #define NFSX_V3STATFS           52
 161 #define NFSX_V3FSINFO           48
 162 #define NFSX_V3PATHCONF         24
 163
 164 /* variants for both versions */
 165 #define NFSX_FH(v3)             ((v3) ? (NFSX_V3FHMAX + NFSX_UNSIGNED) : \
 166                                         NFSX_V2FH)
 167 #define NFSX_SRVFH(v3)          ((v3) ? NFSX_V3FH : NFSX_V2FH)
 168 #define NFSX_FATTR(v3)          ((v3) ? NFSX_V3FATTR : NFSX_V2FATTR)
 169 #define NFSX_PREOPATTR(v3)      ((v3) ? (7 * NFSX_UNSIGNED) : 0)
 170 #define NFSX_POSTOPATTR(v3)     ((v3) ? (NFSX_V3FATTR + NFSX_UNSIGNED) : 0)
 171 #define NFSX_POSTOPORFATTR(v3)  ((v3) ? (NFSX_V3FATTR + NFSX_UNSIGNED) : \
 172                                         NFSX_V2FATTR)
 173 #define NFSX_WCCDATA(v3)        ((v3) ? NFSX_V3WCCDATA : 0)
 174 #define NFSX_WCCORFATTR(v3)     ((v3) ? NFSX_V3WCCDATA : NFSX_V2FATTR)
 175 #define NFSX_SATTR(v3)          ((v3) ? NFSX_V3SATTR : NFSX_V2SATTR)
 176 #define NFSX_COOKIEVERF(v3)     ((v3) ? NFSX_V3COOKIEVERF : 0)
 177 #define NFSX_WRITEVERF(v3)      ((v3) ? NFSX_V3WRITEVERF : 0)
 178 #define NFSX_READDIR(v3)        ((v3) ? (5 * NFSX_UNSIGNED) : \
 179                                         (2 * NFSX_UNSIGNED))
 180 #define NFSX_STATFS(v3)         ((v3) ? NFSX_V3STATFS : NFSX_V2STATFS)
 181
 182 /* Only define these if nfs_prot.h hasn't been included */
 183 #ifndef NFS_PROGRAM
 184
 185 /* nfs rpc procedure numbers (before version mapping) */
 186 #define NFSPROC_NULL            0
 187 #define NFSPROC_GETATTR         1
 188 #define NFSPROC_SETATTR         2
 189 #define NFSPROC_LOOKUP          3
 190 #define NFSPROC_ACCESS          4
 191 #define NFSPROC_READLINK        5
 192 #define NFSPROC_READ            6
 193 #define NFSPROC_WRITE           7
 194 #define NFSPROC_CREATE          8
 195 #define NFSPROC_MKDIR           9
 196 #define NFSPROC_SYMLINK         10
 197 #define NFSPROC_MKNOD           11
 198 #define NFSPROC_REMOVE          12
 199 #define NFSPROC_RMDIR           13
 200 #define NFSPROC_RENAME          14
 201 #define NFSPROC_LINK            15
 202 #define NFSPROC_READDIR         16
 203 #define NFSPROC_READDIRPLUS     17
 204 #define NFSPROC_FSSTAT          18
 205 #define NFSPROC_FSINFO          19
 206 #define NFSPROC_PATHCONF        20
 207 #define NFSPROC_COMMIT          21
 208
 209 #endif /* !NFS_PROGRAM */
 210
 211 /* And leasing (nqnfs) procedure numbers (must be last) */
 212 #define NQNFSPROC_GETLEASE      22
 213 #define NQNFSPROC_VACATED       23
 214 #define NQNFSPROC_EVICTED       24
 215
 216 #define NFSPROC_NOOP            25
 217 #define NFS_NPROCS              26
 218
 219 /* Actual Version 2 procedure numbers */
 220 #define NFSV2PROC_NULL          0
 221 #define NFSV2PROC_GETATTR       1
 222 #define NFSV2PROC_SETATTR       2
 223 #define NFSV2PROC_NOOP          3
 224 #define NFSV2PROC_ROOT          NFSV2PROC_NOOP  /* Obsolete */
 225 #define NFSV2PROC_LOOKUP        4
 226 #define NFSV2PROC_READLINK      5
 227 #define NFSV2PROC_READ          6
 228 #define NFSV2PROC_WRITECACHE    NFSV2PROC_NOOP  /* Obsolete */
 229 #define NFSV2PROC_WRITE         8
 230 #define NFSV2PROC_CREATE        9
 231 #define NFSV2PROC_REMOVE        10
 232 #define NFSV2PROC_RENAME        11
 233 #define NFSV2PROC_LINK          12
 234 #define NFSV2PROC_SYMLINK       13
 235 #define NFSV2PROC_MKDIR         14
 236 #define NFSV2PROC_RMDIR         15
 237 #define NFSV2PROC_READDIR       16
 238 #define NFSV2PROC_STATFS        17
 239
 240 /*
 241  * Constants used by the Version 3 protocol for various RPCs
 242  */
 243 #define NFSV3SATTRTIME_DONTCHANGE       0
 244 #define NFSV3SATTRTIME_TOSERVER         1
 245 #define NFSV3SATTRTIME_TOCLIENT         2
 246
 247 #define NFSV3ACCESS_READ                0x01
 248 #define NFSV3ACCESS_LOOKUP              0x02
 249 #define NFSV3ACCESS_MODIFY              0x04
 250 #define NFSV3ACCESS_EXTEND              0x08
 251 #define NFSV3ACCESS_DELETE              0x10
 252 #define NFSV3ACCESS_EXECUTE             0x20
 253
 254 #define NFSV3WRITE_UNSTABLE             0
 255 #define NFSV3WRITE_DATASYNC             1
 256 #define NFSV3WRITE_FILESYNC             2
 257
 258 #define NFSV3CREATE_UNCHECKED           0
 259 #define NFSV3CREATE_GUARDED             1
 260 #define NFSV3CREATE_EXCLUSIVE           2
 261
 262 #define NFSV3FSINFO_LINK                0x01
 263 #define NFSV3FSINFO_SYMLINK             0x02
 264 #define NFSV3FSINFO_HOMOGENEOUS         0x08
 265 #define NFSV3FSINFO_CANSETTIME          0x10
 266
 267 /* Conversion macros */
 268 #define vtonfsv2_mode(t,m) \
 269                 txdr_unsigned(((t) == VFIFO) ? MAKEIMODE(VCHR, (m)) : \
 270                                 MAKEIMODE((t), (m)))
 271 #define vtonfsv3_mode(m)        txdr_unsigned((m) & 07777)
 272 #define nfstov_mode(a)          (fxdr_unsigned(u_short, (a))&07777)
 273 #define vtonfsv2_type(a)        txdr_unsigned(nfsv2_type[((long)(a))])
 274 #define vtonfsv3_type(a)        txdr_unsigned(nfsv3_type[((long)(a))])
 275 #define nfsv2tov_type(a)        nv2tov_type[fxdr_unsigned(u_long,(a))&0x7]
 276 #define nfsv3tov_type(a)        nv3tov_type[fxdr_unsigned(u_long,(a))&0x7]
 277
 278 /* Only define these if nfs_prot.h hasn't been included */
 279 #ifndef NFS_PROGRAM
 280
 281 /* File types */
 282 typedef enum { NFNON=0, NFREG=1, NFDIR=2, NFBLK=3, NFCHR=4, NFLNK=5,
 283         NFSOCK=6, NFFIFO=7 } nfstype;
 284 #endif /* !NFS_PROGRAM */
 285
 286 /* Structs for common parts of the rpc's */
 287 /*
 288  * File Handle (32 bytes for version 2), variable up to 64 for version 3.
 289  * File Handles of up to NFS_SMALLFH in size are stored directly in the
 290  * nfs node, whereas larger ones are malloc'd. (This never happens when
 291  * NFS_SMALLFH is set to 64.)
 292  * NFS_SMALLFH should be in the range of 32 to 64 and be divisible by 4.
 293  */
 294 #ifndef NFS_SMALLFH
 295 #define NFS_SMALLFH     64
 296 #endif
 297 union nfsfh {
 298         fhandle_t       fh_generic;
 299         u_char          fh_bytes[NFS_SMALLFH];
 300 };
 301 typedef union nfsfh nfsfh_t;
 302
 303 struct nfsv2_time {
 304         u_long  nfsv2_sec;
 305         u_long  nfsv2_usec;
 306 };
 307 typedef struct nfsv2_time       nfstime2;
 308
 309 struct nfsv3_time {
 310         u_long  nfsv3_sec;
 311         u_long  nfsv3_nsec;
 312 };
 313 typedef struct nfsv3_time       nfstime3;
 314
 315 /*
 316  * Quads are defined as arrays of 2 longs to ensure dense packing for the
 317  * protocol and to facilitate xdr conversion.
 318  */
 319 struct nfs_uquad {
 320         u_long  nfsuquad[2];
 321 };
 322 typedef struct nfs_uquad        nfsuint64;
 323
 324 /*
 325  * Used to convert between two u_longs and a u_quad_t.
 326  */
 327 union nfs_quadconvert {
 328         u_long          lval[2];
 329         u_quad_t        qval;
 330 };
 331 typedef union nfs_quadconvert   nfsquad_t;
 332
 333 /*
 334  * NFS Version 3 special file number.
 335  */
 336 struct nfsv3_spec {
 337         u_long  specdata1;
 338         u_long  specdata2;
 339 };
 340 typedef struct nfsv3_spec       nfsv3spec;
 341
 342 /*
 343  * File attributes and setable attributes. These structures cover both
 344  * NFS version 2 and the version 3 protocol. Note that the union is only
 345  * used so that one pointer can refer to both variants. These structures
 346  * go out on the wire and must be densely packed, so no quad data types
 347  * are used. (all fields are longs or u_longs or structures of same)
 348  * NB: You can't do sizeof(struct nfs_fattr), you must use the
 349  *     NFSX_FATTR(v3) macro.
 350  */
 351 struct nfs_fattr {
 352         u_long  fa_type;
 353         u_long  fa_mode;
 354         u_long  fa_nlink;
 355         u_long  fa_uid;
 356         u_long  fa_gid;
 357         union {
 358                 struct {
 359                         u_long          nfsv2fa_size;
 360                         u_long          nfsv2fa_blocksize;
 361                         u_long          nfsv2fa_rdev;
 362                         u_long          nfsv2fa_blocks;
 363                         u_long          nfsv2fa_fsid;
 364                         u_long          nfsv2fa_fileid;
 365                         nfstime2        nfsv2fa_atime;
 366                         nfstime2        nfsv2fa_mtime;
 367                         nfstime2        nfsv2fa_ctime;
 368                 } fa_nfsv2;
 369                 struct {
 370                         nfsuint64       nfsv3fa_size;
 371                         nfsuint64       nfsv3fa_used;
 372                         nfsv3spec       nfsv3fa_rdev;
 373                         nfsuint64       nfsv3fa_fsid;
 374                         nfsuint64       nfsv3fa_fileid;
 375                         nfstime3        nfsv3fa_atime;
 376                         nfstime3        nfsv3fa_mtime;
 377                         nfstime3        nfsv3fa_ctime;
 378                 } fa_nfsv3;
 379         } fa_un;
 380 };
 381
 382 /* and some ugly defines for accessing union components */
 383 #define fa2_size                fa_un.fa_nfsv2.nfsv2fa_size
 384 #define fa2_blocksize           fa_un.fa_nfsv2.nfsv2fa_blocksize
 385 #define fa2_rdev                fa_un.fa_nfsv2.nfsv2fa_rdev
 386 #define fa2_blocks              fa_un.fa_nfsv2.nfsv2fa_blocks
 387 #define fa2_fsid                fa_un.fa_nfsv2.nfsv2fa_fsid
 388 #define fa2_fileid              fa_un.fa_nfsv2.nfsv2fa_fileid
 389 #define fa2_atime               fa_un.fa_nfsv2.nfsv2fa_atime
 390 #define fa2_mtime               fa_un.fa_nfsv2.nfsv2fa_mtime
 391 #define fa2_ctime               fa_un.fa_nfsv2.nfsv2fa_ctime
 392 #define fa3_size                fa_un.fa_nfsv3.nfsv3fa_size
 393 #define fa3_used                fa_un.fa_nfsv3.nfsv3fa_used
 394 #define fa3_rdev                fa_un.fa_nfsv3.nfsv3fa_rdev
 395 #define fa3_fsid                fa_un.fa_nfsv3.nfsv3fa_fsid
 396 #define fa3_fileid              fa_un.fa_nfsv3.nfsv3fa_fileid
 397 #define fa3_atime               fa_un.fa_nfsv3.nfsv3fa_atime
 398 #define fa3_mtime               fa_un.fa_nfsv3.nfsv3fa_mtime
 399 #define fa3_ctime               fa_un.fa_nfsv3.nfsv3fa_ctime
 400
 401 struct nfsv2_sattr {
 402         u_long          sa_mode;
 403         u_long          sa_uid;
 404         u_long          sa_gid;
 405         u_long          sa_size;
 406         nfstime2        sa_atime;
 407         nfstime2        sa_mtime;
 408 };
 409
 410 /*
 411  * NFS Version 3 sattr structure for the new node creation case.
 412  */
 413 struct nfsv3_sattr {
 414         u_long          sa_modetrue;
 415         u_long          sa_mode;
 416         u_long          sa_uidtrue;
 417         u_long          sa_uid;
 418         u_long          sa_gidtrue;
 419         u_long          sa_gid;
 420         u_long          sa_sizefalse;
 421         u_long          sa_atimetype;
 422         u_long          sa_mtimetype;
 423 };
 424
 425 struct nfs_statfs {
 426         union {
 427                 struct {
 428                         u_long          nfsv2sf_tsize;
 429                         u_long          nfsv2sf_bsize;
 430                         u_long          nfsv2sf_blocks;
 431                         u_long          nfsv2sf_bfree;
 432                         u_long          nfsv2sf_bavail;
 433                 } sf_nfsv2;
 434                 struct {
 435                         nfsuint64       nfsv3sf_tbytes;
 436                         nfsuint64       nfsv3sf_fbytes;
 437                         nfsuint64       nfsv3sf_abytes;
 438                         nfsuint64       nfsv3sf_tfiles;
 439                         nfsuint64       nfsv3sf_ffiles;
 440                         nfsuint64       nfsv3sf_afiles;
 441                         u_long          nfsv3sf_invarsec;
 442                 } sf_nfsv3;
 443         } sf_un;
 444 };
 445
 446 #define sf_tsize        sf_un.sf_nfsv2.nfsv2sf_tsize
 447 #define sf_bsize        sf_un.sf_nfsv2.nfsv2sf_bsize
 448 #define sf_blocks       sf_un.sf_nfsv2.nfsv2sf_blocks
 449 #define sf_bfree        sf_un.sf_nfsv2.nfsv2sf_bfree
 450 #define sf_bavail       sf_un.sf_nfsv2.nfsv2sf_bavail
 451 #define sf_tbytes       sf_un.sf_nfsv3.nfsv3sf_tbytes
 452 #define sf_fbytes       sf_un.sf_nfsv3.nfsv3sf_fbytes
 453 #define sf_abytes       sf_un.sf_nfsv3.nfsv3sf_abytes
 454 #define sf_tfiles       sf_un.sf_nfsv3.nfsv3sf_tfiles
 455 #define sf_ffiles       sf_un.sf_nfsv3.nfsv3sf_ffiles
 456 #define sf_afiles       sf_un.sf_nfsv3.nfsv3sf_afiles
 457 #define sf_invarsec     sf_un.sf_nfsv3.nfsv3sf_invarsec
 458
 459 struct nfsv3_fsinfo {
 460         u_long          fs_rtmax;
 461         u_long          fs_rtpref;
 462         u_long          fs_rtmult;
 463         u_long          fs_wtmax;
 464         u_long          fs_wtpref;
 465         u_long          fs_wtmult;
 466         u_long          fs_dtpref;
 467         nfsuint64       fs_maxfilesize;
 468         nfstime3        fs_timedelta;
 469         u_long          fs_properties;
 470 };
 471
 472 struct nfsv3_pathconf {
 473         u_long          pc_linkmax;
 474         u_long          pc_namemax;
 475         u_long          pc_notrunc;
 476         u_long          pc_chownrestricted;
 477         u_long          pc_caseinsensitive;
 478         u_long          pc_casepreserving;
 479 };
 480
 481 #endif /* __APPLE_API_PRIVATE */
 482 #endif /* _NFS_NFSPROTO_H_ */