Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/nfs/nfsproto.h
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1 /* 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Rick Macklem at The University of Guelph. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)nfsproto.h 8.2 (Berkeley) 3/30/95 37 * $FreeBSD: releng/5.0/sys/nfs/nfsproto.h 83651 2001-09-18 23:32:09Z peter $ 38 */ 39 40 #ifndef _NFS_NFSPROTO_H_ 41 #define _NFS_NFSPROTO_H_ 42 43 /* 44 * nfs definitions as per the Version 2 and 3 specs 45 */ 46 47 /* 48 * Constants as defined in the Sun NFS Version 2 and 3 specs. 49 * "NFS: Network File System Protocol Specification" RFC1094 50 * and in the "NFS: Network File System Version 3 Protocol 51 * Specification" 52 */ 53 54 #define NFS_PORT 2049 55 #define NFS_PROG 100003 56 #define NFS_VER2 2 57 #define NFS_VER3 3 58 #define NFS_V2MAXDATA 8192 59 #define NFS_MAXDGRAMDATA 16384 60 #define NFS_MAXDATA 32768 61 #define NFS_MAXPATHLEN 1024 62 #define NFS_MAXNAMLEN 255 63 #define NFS_MAXPKTHDR 404 64 #define NFS_MAXPACKET (NFS_MAXPKTHDR + NFS_MAXDATA) 65 #define NFS_MINPACKET 20 66 #define NFS_FABLKSIZE 512 /* Size in bytes of a block wrt fa_blocks */ 67 68 /* Stat numbers for rpc returns (version 2 and 3) */ 69 #define NFS_OK 0 70 #define NFSERR_PERM 1 71 #define NFSERR_NOENT 2 72 #define NFSERR_IO 5 73 #define NFSERR_NXIO 6 74 #define NFSERR_ACCES 13 75 #define NFSERR_EXIST 17 76 #define NFSERR_XDEV 18 /* Version 3 only */ 77 #define NFSERR_NODEV 19 78 #define NFSERR_NOTDIR 20 79 #define NFSERR_ISDIR 21 80 #define NFSERR_INVAL 22 /* Version 3 only */ 81 #define NFSERR_FBIG 27 82 #define NFSERR_NOSPC 28 83 #define NFSERR_ROFS 30 84 #define NFSERR_MLINK 31 /* Version 3 only */ 85 #define NFSERR_NAMETOL 63 86 #define NFSERR_NOTEMPTY 66 87 #define NFSERR_DQUOT 69 88 #define NFSERR_STALE 70 89 #define NFSERR_REMOTE 71 /* Version 3 only */ 90 #define NFSERR_WFLUSH 99 /* Version 2 only */ 91 #define NFSERR_BADHANDLE 10001 /* The rest Version 3 only */ 92 #define NFSERR_NOT_SYNC 10002 93 #define NFSERR_BAD_COOKIE 10003 94 #define NFSERR_NOTSUPP 10004 95 #define NFSERR_TOOSMALL 10005 96 #define NFSERR_SERVERFAULT 10006 97 #define NFSERR_BADTYPE 10007 98 #define NFSERR_JUKEBOX 10008 99 #define NFSERR_TRYLATER NFSERR_JUKEBOX 100 #define NFSERR_STALEWRITEVERF 30001 /* Fake return for nfs_commit() */ 101 102 #define NFSERR_RETVOID 0x20000000 /* Return void, not error */ 103 #define NFSERR_AUTHERR 0x40000000 /* Mark an authentication error */ 104 #define NFSERR_RETERR 0x80000000 /* Mark an error return for V3 */ 105 106 /* Sizes in bytes of various nfs rpc components */ 107 #define NFSX_UNSIGNED 4 108 109 /* specific to NFS Version 2 */ 110 #define NFSX_V2FH 32 111 #define NFSX_V2FATTR 68 112 #define NFSX_V2SATTR 32 113 #define NFSX_V2COOKIE 4 114 #define NFSX_V2STATFS 20 115 116 /* specific to NFS Version 3 */ 117 #define NFSX_V3FH (sizeof (fhandle_t)) /* size this server uses */ 118 #define NFSX_V3FHMAX 64 /* max. allowed by protocol */ 119 #define NFSX_V3FATTR 84 120 #define NFSX_V3SATTR 60 /* max. all fields filled in */ 121 #define NFSX_V3SRVSATTR (sizeof (struct nfsv3_sattr)) 122 #define NFSX_V3POSTOPATTR (NFSX_V3FATTR + NFSX_UNSIGNED) 123 #define NFSX_V3WCCDATA (NFSX_V3POSTOPATTR + 8 * NFSX_UNSIGNED) 124 #define NFSX_V3COOKIEVERF 8 125 #define NFSX_V3WRITEVERF 8 126 #define NFSX_V3CREATEVERF 8 127 #define NFSX_V3STATFS 52 128 #define NFSX_V3FSINFO 48 129 #define NFSX_V3PATHCONF 24 130 131 /* variants for both versions */ 132 #define NFSX_FH(v3) ((v3) ? (NFSX_V3FHMAX + NFSX_UNSIGNED) : \ 133 NFSX_V2FH) 134 #define NFSX_SRVFH(v3) ((v3) ? NFSX_V3FH : NFSX_V2FH) 135 #define NFSX_FATTR(v3) ((v3) ? NFSX_V3FATTR : NFSX_V2FATTR) 136 #define NFSX_PREOPATTR(v3) ((v3) ? (7 * NFSX_UNSIGNED) : 0) 137 #define NFSX_POSTOPATTR(v3) ((v3) ? (NFSX_V3FATTR + NFSX_UNSIGNED) : 0) 138 #define NFSX_POSTOPORFATTR(v3) ((v3) ? (NFSX_V3FATTR + NFSX_UNSIGNED) : \ 139 NFSX_V2FATTR) 140 #define NFSX_WCCDATA(v3) ((v3) ? NFSX_V3WCCDATA : 0) 141 #define NFSX_WCCORFATTR(v3) ((v3) ? NFSX_V3WCCDATA : NFSX_V2FATTR) 142 #define NFSX_SATTR(v3) ((v3) ? NFSX_V3SATTR : NFSX_V2SATTR) 143 #define NFSX_COOKIEVERF(v3) ((v3) ? NFSX_V3COOKIEVERF : 0) 144 #define NFSX_WRITEVERF(v3) ((v3) ? NFSX_V3WRITEVERF : 0) 145 #define NFSX_READDIR(v3) ((v3) ? (5 * NFSX_UNSIGNED) : \ 146 (2 * NFSX_UNSIGNED)) 147 #define NFSX_STATFS(v3) ((v3) ? NFSX_V3STATFS : NFSX_V2STATFS) 148 149 /* nfs rpc procedure numbers (before version mapping) */ 150 #define NFSPROC_NULL 0 151 #define NFSPROC_GETATTR 1 152 #define NFSPROC_SETATTR 2 153 #define NFSPROC_LOOKUP 3 154 #define NFSPROC_ACCESS 4 155 #define NFSPROC_READLINK 5 156 #define NFSPROC_READ 6 157 #define NFSPROC_WRITE 7 158 #define NFSPROC_CREATE 8 159 #define NFSPROC_MKDIR 9 160 #define NFSPROC_SYMLINK 10 161 #define NFSPROC_MKNOD 11 162 #define NFSPROC_REMOVE 12 163 #define NFSPROC_RMDIR 13 164 #define NFSPROC_RENAME 14 165 #define NFSPROC_LINK 15 166 #define NFSPROC_READDIR 16 167 #define NFSPROC_READDIRPLUS 17 168 #define NFSPROC_FSSTAT 18 169 #define NFSPROC_FSINFO 19 170 #define NFSPROC_PATHCONF 20 171 #define NFSPROC_COMMIT 21 172 #define NFSPROC_NOOP 22 173 #define NFS_NPROCS 23 174 175 /* Actual Version 2 procedure numbers */ 176 #define NFSV2PROC_NULL 0 177 #define NFSV2PROC_GETATTR 1 178 #define NFSV2PROC_SETATTR 2 179 #define NFSV2PROC_NOOP 3 180 #define NFSV2PROC_ROOT NFSV2PROC_NOOP /* Obsolete */ 181 #define NFSV2PROC_LOOKUP 4 182 #define NFSV2PROC_READLINK 5 183 #define NFSV2PROC_READ 6 184 #define NFSV2PROC_WRITECACHE NFSV2PROC_NOOP /* Obsolete */ 185 #define NFSV2PROC_WRITE 8 186 #define NFSV2PROC_CREATE 9 187 #define NFSV2PROC_REMOVE 10 188 #define NFSV2PROC_RENAME 11 189 #define NFSV2PROC_LINK 12 190 #define NFSV2PROC_SYMLINK 13 191 #define NFSV2PROC_MKDIR 14 192 #define NFSV2PROC_RMDIR 15 193 #define NFSV2PROC_READDIR 16 194 #define NFSV2PROC_STATFS 17 195 196 /* 197 * Constants used by the Version 3 protocol for various RPCs 198 */ 199 #define NFSV3SATTRTIME_DONTCHANGE 0 200 #define NFSV3SATTRTIME_TOSERVER 1 201 #define NFSV3SATTRTIME_TOCLIENT 2 202 203 #define NFSV3ACCESS_READ 0x01 204 #define NFSV3ACCESS_LOOKUP 0x02 205 #define NFSV3ACCESS_MODIFY 0x04 206 #define NFSV3ACCESS_EXTEND 0x08 207 #define NFSV3ACCESS_DELETE 0x10 208 #define NFSV3ACCESS_EXECUTE 0x20 209 210 #define NFSV3WRITE_UNSTABLE 0 211 #define NFSV3WRITE_DATASYNC 1 212 #define NFSV3WRITE_FILESYNC 2 213 214 #define NFSV3CREATE_UNCHECKED 0 215 #define NFSV3CREATE_GUARDED 1 216 #define NFSV3CREATE_EXCLUSIVE 2 217 218 #define NFSV3FSINFO_LINK 0x01 219 #define NFSV3FSINFO_SYMLINK 0x02 220 #define NFSV3FSINFO_HOMOGENEOUS 0x08 221 #define NFSV3FSINFO_CANSETTIME 0x10 222 223 /* File types */ 224 typedef enum { NFNON=0, NFREG=1, NFDIR=2, NFBLK=3, NFCHR=4, NFLNK=5, 225 NFSOCK=6, NFFIFO=7 } nfstype; 226 227 /* Structs for common parts of the rpc's */ 228 /* 229 * File Handle (32 bytes for version 2), variable up to 64 for version 3. 230 * File Handles of up to NFS_SMALLFH in size are stored directly in the 231 * nfs node, whereas larger ones are malloc'd. (This never happens when 232 * NFS_SMALLFH is set to 64.) 233 * NFS_SMALLFH should be in the range of 32 to 64 and be divisible by 4. 234 */ 235 #ifndef NFS_SMALLFH 236 #define NFS_SMALLFH 64 237 #endif 238 union nfsfh { 239 fhandle_t fh_generic; 240 u_char fh_bytes[NFS_SMALLFH]; 241 }; 242 typedef union nfsfh nfsfh_t; 243 244 struct nfsv2_time { 245 u_int32_t nfsv2_sec; 246 u_int32_t nfsv2_usec; 247 }; 248 typedef struct nfsv2_time nfstime2; 249 250 struct nfsv3_time { 251 u_int32_t nfsv3_sec; 252 u_int32_t nfsv3_nsec; 253 }; 254 typedef struct nfsv3_time nfstime3; 255 256 /* 257 * Quads are defined as arrays of 2 longs to ensure dense packing for the 258 * protocol and to facilitate xdr conversion. 259 */ 260 struct nfs_uquad { 261 u_int32_t nfsuquad[2]; 262 }; 263 typedef struct nfs_uquad nfsuint64; 264 265 /* 266 * Used to convert between two u_longs and a u_quad_t. 267 */ 268 union nfs_quadconvert { 269 u_int32_t lval[2]; 270 u_quad_t qval; 271 }; 272 typedef union nfs_quadconvert nfsquad_t; 273 274 /* 275 * NFS Version 3 special file number. 276 */ 277 struct nfsv3_spec { 278 u_int32_t specdata1; 279 u_int32_t specdata2; 280 }; 281 typedef struct nfsv3_spec nfsv3spec; 282 283 /* 284 * File attributes and setable attributes. These structures cover both 285 * NFS version 2 and the version 3 protocol. Note that the union is only 286 * used so that one pointer can refer to both variants. These structures 287 * go out on the wire and must be densely packed, so no quad data types 288 * are used. (all fields are longs or u_longs or structures of same) 289 * NB: You can't do sizeof(struct nfs_fattr), you must use the 290 * NFSX_FATTR(v3) macro. 291 */ 292 struct nfs_fattr { 293 u_int32_t fa_type; 294 u_int32_t fa_mode; 295 u_int32_t fa_nlink; 296 u_int32_t fa_uid; 297 u_int32_t fa_gid; 298 union { 299 struct { 300 u_int32_t nfsv2fa_size; 301 u_int32_t nfsv2fa_blocksize; 302 u_int32_t nfsv2fa_rdev; 303 u_int32_t nfsv2fa_blocks; 304 u_int32_t nfsv2fa_fsid; 305 u_int32_t nfsv2fa_fileid; 306 nfstime2 nfsv2fa_atime; 307 nfstime2 nfsv2fa_mtime; 308 nfstime2 nfsv2fa_ctime; 309 } fa_nfsv2; 310 struct { 311 nfsuint64 nfsv3fa_size; 312 nfsuint64 nfsv3fa_used; 313 nfsv3spec nfsv3fa_rdev; 314 nfsuint64 nfsv3fa_fsid; 315 nfsuint64 nfsv3fa_fileid; 316 nfstime3 nfsv3fa_atime; 317 nfstime3 nfsv3fa_mtime; 318 nfstime3 nfsv3fa_ctime; 319 } fa_nfsv3; 320 } fa_un; 321 }; 322 323 /* and some ugly defines for accessing union components */ 324 #define fa2_size fa_un.fa_nfsv2.nfsv2fa_size 325 #define fa2_blocksize fa_un.fa_nfsv2.nfsv2fa_blocksize 326 #define fa2_rdev fa_un.fa_nfsv2.nfsv2fa_rdev 327 #define fa2_blocks fa_un.fa_nfsv2.nfsv2fa_blocks 328 #define fa2_fsid fa_un.fa_nfsv2.nfsv2fa_fsid 329 #define fa2_fileid fa_un.fa_nfsv2.nfsv2fa_fileid 330 #define fa2_atime fa_un.fa_nfsv2.nfsv2fa_atime 331 #define fa2_mtime fa_un.fa_nfsv2.nfsv2fa_mtime 332 #define fa2_ctime fa_un.fa_nfsv2.nfsv2fa_ctime 333 #define fa3_size fa_un.fa_nfsv3.nfsv3fa_size 334 #define fa3_used fa_un.fa_nfsv3.nfsv3fa_used 335 #define fa3_rdev fa_un.fa_nfsv3.nfsv3fa_rdev 336 #define fa3_fsid fa_un.fa_nfsv3.nfsv3fa_fsid 337 #define fa3_fileid fa_un.fa_nfsv3.nfsv3fa_fileid 338 #define fa3_atime fa_un.fa_nfsv3.nfsv3fa_atime 339 #define fa3_mtime fa_un.fa_nfsv3.nfsv3fa_mtime 340 #define fa3_ctime fa_un.fa_nfsv3.nfsv3fa_ctime 341 342 struct nfsv2_sattr { 343 u_int32_t sa_mode; 344 u_int32_t sa_uid; 345 u_int32_t sa_gid; 346 u_int32_t sa_size; 347 nfstime2 sa_atime; 348 nfstime2 sa_mtime; 349 }; 350 351 /* 352 * NFS Version 3 sattr structure for the new node creation case. 353 */ 354 struct nfsv3_sattr { 355 u_int32_t sa_modetrue; 356 u_int32_t sa_mode; 357 u_int32_t sa_uidfalse; 358 u_int32_t sa_gidfalse; 359 u_int32_t sa_sizefalse; 360 u_int32_t sa_atimetype; 361 nfstime3 sa_atime; 362 u_int32_t sa_mtimetype; 363 nfstime3 sa_mtime; 364 }; 365 366 struct nfs_statfs { 367 union { 368 struct { 369 u_int32_t nfsv2sf_tsize; 370 u_int32_t nfsv2sf_bsize; 371 u_int32_t nfsv2sf_blocks; 372 u_int32_t nfsv2sf_bfree; 373 u_int32_t nfsv2sf_bavail; 374 } sf_nfsv2; 375 struct { 376 nfsuint64 nfsv3sf_tbytes; 377 nfsuint64 nfsv3sf_fbytes; 378 nfsuint64 nfsv3sf_abytes; 379 nfsuint64 nfsv3sf_tfiles; 380 nfsuint64 nfsv3sf_ffiles; 381 nfsuint64 nfsv3sf_afiles; 382 u_int32_t nfsv3sf_invarsec; 383 } sf_nfsv3; 384 } sf_un; 385 }; 386 387 #define sf_tsize sf_un.sf_nfsv2.nfsv2sf_tsize 388 #define sf_bsize sf_un.sf_nfsv2.nfsv2sf_bsize 389 #define sf_blocks sf_un.sf_nfsv2.nfsv2sf_blocks 390 #define sf_bfree sf_un.sf_nfsv2.nfsv2sf_bfree 391 #define sf_bavail sf_un.sf_nfsv2.nfsv2sf_bavail 392 #define sf_tbytes sf_un.sf_nfsv3.nfsv3sf_tbytes 393 #define sf_fbytes sf_un.sf_nfsv3.nfsv3sf_fbytes 394 #define sf_abytes sf_un.sf_nfsv3.nfsv3sf_abytes 395 #define sf_tfiles sf_un.sf_nfsv3.nfsv3sf_tfiles 396 #define sf_ffiles sf_un.sf_nfsv3.nfsv3sf_ffiles 397 #define sf_afiles sf_un.sf_nfsv3.nfsv3sf_afiles 398 #define sf_invarsec sf_un.sf_nfsv3.nfsv3sf_invarsec 399 400 struct nfsv3_fsinfo { 401 u_int32_t fs_rtmax; 402 u_int32_t fs_rtpref; 403 u_int32_t fs_rtmult; 404 u_int32_t fs_wtmax; 405 u_int32_t fs_wtpref; 406 u_int32_t fs_wtmult; 407 u_int32_t fs_dtpref; 408 nfsuint64 fs_maxfilesize; 409 nfstime3 fs_timedelta; 410 u_int32_t fs_properties; 411 }; 412 413 struct nfsv3_pathconf { 414 u_int32_t pc_linkmax; 415 u_int32_t pc_namemax; 416 u_int32_t pc_notrunc; 417 u_int32_t pc_chownrestricted; 418 u_int32_t pc_caseinsensitive; 419 u_int32_t pc_casepreserving; 420 }; 421 422 #endif
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