nfsproto.h revision 1.18
1 /* $NetBSD: nfsproto.h,v 1.18 2024/12/07 02:05:55 riastradh Exp $ */ 2 3 /* 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Rick Macklem at The University of Guelph. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)nfsproto.h 8.2 (Berkeley) 3/30/95 35 */ 36 37 #ifndef _NFS_NFSPROTO_H_ 38 #define _NFS_NFSPROTO_H_ 39 40 #include <sys/types.h> 41 42 #include <sys/fstypes.h> 43 44 /* 45 * nfs definitions as per the Version 2 and 3 specs 46 */ 47 48 /* 49 * Constants as defined in the Sun NFS Version 2 and 3 specs. 50 * "NFS: Network File System Protocol Specification" RFC1094 51 * and in the "NFS: Network File System Version 3 Protocol 52 * Specification" RFC1813. 53 */ 54 55 #define NFS_PORT 2049 56 #define NFS_PROG 100003 57 #define NFS_VER2 2 58 #define NFS_VER3 3 59 #define NFS_V2MAXDATA 8192 60 #define NFS_MAXDGRAMDATA (60*1024) 61 #define NFS_MAXDATA MAXBSIZE 62 #define NFS_MAXPATHLEN 1024 63 #define NFS_MAXNAMLEN 255 64 #define NFS_MAXPKTHDR 404 65 #define NFS_MAXPACKET (NFS_MAXPKTHDR + NFS_MAXDATA) 66 #define NFS_MINPACKET 20 67 #define NFS_FABLKSIZE 512 /* Size in bytes of a block wrt fa_blocks */ 68 69 /* Stat numbers for rpc returns (version 2 and 3) */ 70 #define NFS_OK 0 71 #define NFSERR_PERM 1 72 #define NFSERR_NOENT 2 73 #define NFSERR_IO 5 74 #define NFSERR_NXIO 6 75 #define NFSERR_ACCES 13 76 #define NFSERR_EXIST 17 77 #define NFSERR_XDEV 18 /* Version 3 only */ 78 #define NFSERR_NODEV 19 79 #define NFSERR_NOTDIR 20 80 #define NFSERR_ISDIR 21 81 #define NFSERR_INVAL 22 /* Version 3 only */ 82 #define NFSERR_FBIG 27 83 #define NFSERR_NOSPC 28 84 #define NFSERR_ROFS 30 85 #define NFSERR_MLINK 31 /* Version 3 only */ 86 #define NFSERR_TIMEDOUT 60 /* XXX */ 87 #define NFSERR_NAMETOL 63 88 #define NFSERR_NOTEMPTY 66 89 #define NFSERR_DQUOT 69 90 #define NFSERR_STALE 70 91 #define NFSERR_REMOTE 71 /* Version 3 only */ 92 #define NFSERR_WFLUSH 99 /* Version 2 only */ 93 #define NFSERR_BADHANDLE 10001 /* The rest Version 3 only */ 94 #define NFSERR_NOT_SYNC 10002 95 #define NFSERR_BAD_COOKIE 10003 96 #define NFSERR_NOTSUPP 10004 97 #define NFSERR_TOOSMALL 10005 98 #define NFSERR_SERVERFAULT 10006 99 #define NFSERR_BADTYPE 10007 100 #define NFSERR_JUKEBOX 10008 101 #define NFSERR_TRYLATER NFSERR_JUKEBOX 102 #define NFSERR_STALEWRITEVERF 30001 /* Fake return for nfs_commit() */ 103 104 #define NFSERR_RETVOID 0x20000000 /* Return void, not error */ 105 #define NFSERR_AUTHERR 0x40000000 /* Mark an authentication error */ 106 #define NFSERR_RETERR 0x80000000 /* Mark an error return for V3 */ 107 108 /* Sizes in bytes of various nfs rpc components */ 109 #define NFSX_UNSIGNED 4 110 111 /* specific to NFS Version 2 */ 112 #define NFSX_V2FH 32 113 #define NFSX_V2FATTR 68 114 #define NFSX_V2SATTR 32 115 #define NFSX_V2COOKIE 4 116 #define NFSX_V2STATFS 20 117 118 /* specific to NFS Version 3 */ 119 #define NFSX_V3FH (12/*sizeof(fhandle_t)*/+16) 120 #define NFSX_V3FHMAX 64 /* max. allowed by protocol */ 121 #define NFSX_V3FATTR 84 122 #define NFSX_V3SATTR 60 /* max. all fields filled in */ 123 #define NFSX_V3SRVSATTR (sizeof (struct nfsv3_sattr)) 124 #define NFSX_V3POSTOPATTR (NFSX_V3FATTR + NFSX_UNSIGNED) 125 #define NFSX_V3WCCDATA (NFSX_V3POSTOPATTR + 8 * NFSX_UNSIGNED) 126 #define NFSX_V3COOKIEVERF 8 127 #define NFSX_V3WRITEVERF 8 128 #define NFSX_V3CREATEVERF 8 129 #define NFSX_V3STATFS 52 130 #define NFSX_V3FSINFO 48 131 #define NFSX_V3PATHCONF 24 132 133 /* variants for both versions */ 134 #define NFSX_FH(v3) ((v3) ? (NFSX_V3FHMAX + NFSX_UNSIGNED) : \ 135 NFSX_V2FH) 136 #define NFSX_SRVFH(nsfh, v3) (((v3) ? NFSX_UNSIGNED : 0) + NFSRVFH_SIZE(nsfh)) 137 #define NFSX_FATTR(v3) ((v3) ? NFSX_V3FATTR : NFSX_V2FATTR) 138 #define NFSX_PREOPATTR(v3) ((v3) ? (7 * NFSX_UNSIGNED) : 0) 139 #define NFSX_POSTOPATTR(v3) ((v3) ? (NFSX_V3FATTR + NFSX_UNSIGNED) : 0) 140 #define NFSX_POSTOPORFATTR(v3) ((v3) ? (NFSX_V3FATTR + NFSX_UNSIGNED) : \ 141 NFSX_V2FATTR) 142 #define NFSX_WCCDATA(v3) ((v3) ? NFSX_V3WCCDATA : 0) 143 #define NFSX_WCCORFATTR(v3) ((v3) ? NFSX_V3WCCDATA : NFSX_V2FATTR) 144 #define NFSX_SATTR(v3) ((v3) ? NFSX_V3SATTR : NFSX_V2SATTR) 145 #define NFSX_COOKIEVERF(v3) ((v3) ? NFSX_V3COOKIEVERF : 0) 146 #define NFSX_WRITEVERF(v3) ((v3) ? NFSX_V3WRITEVERF : 0) 147 #define NFSX_READDIR(v3) ((v3) ? (5 * NFSX_UNSIGNED) : \ 148 (2 * NFSX_UNSIGNED)) 149 #define NFSX_STATFS(v3) ((v3) ? NFSX_V3STATFS : NFSX_V2STATFS) 150 #define NFSX_FHTOOBIG_P(sz, v3) ((sz) > ((v3) ? NFSX_V3FHMAX : NFSX_V2FH)) 151 152 /* nfs rpc procedure numbers (before version mapping) */ 153 #define NFSPROC_NULL 0 154 #define NFSPROC_GETATTR 1 155 #define NFSPROC_SETATTR 2 156 #define NFSPROC_LOOKUP 3 157 #define NFSPROC_ACCESS 4 158 #define NFSPROC_READLINK 5 159 #define NFSPROC_READ 6 160 #define NFSPROC_WRITE 7 161 #define NFSPROC_CREATE 8 162 #define NFSPROC_MKDIR 9 163 #define NFSPROC_SYMLINK 10 164 #define NFSPROC_MKNOD 11 165 #define NFSPROC_REMOVE 12 166 #define NFSPROC_RMDIR 13 167 #define NFSPROC_RENAME 14 168 #define NFSPROC_LINK 15 169 #define NFSPROC_READDIR 16 170 #define NFSPROC_READDIRPLUS 17 171 #define NFSPROC_FSSTAT 18 172 #define NFSPROC_FSINFO 19 173 #define NFSPROC_PATHCONF 20 174 #define NFSPROC_COMMIT 21 175 #define NFSPROC_NOOP 22 176 #define NFS_NPROCS 23 177 178 /* Actual Version 2 procedure numbers */ 179 #define NFSV2PROC_NULL 0 180 #define NFSV2PROC_GETATTR 1 181 #define NFSV2PROC_SETATTR 2 182 #define NFSV2PROC_NOOP 3 183 #define NFSV2PROC_ROOT NFSV2PROC_NOOP /* Obsolete */ 184 #define NFSV2PROC_LOOKUP 4 185 #define NFSV2PROC_READLINK 5 186 #define NFSV2PROC_READ 6 187 #define NFSV2PROC_WRITECACHE NFSV2PROC_NOOP /* Obsolete */ 188 #define NFSV2PROC_WRITE 8 189 #define NFSV2PROC_CREATE 9 190 #define NFSV2PROC_REMOVE 10 191 #define NFSV2PROC_RENAME 11 192 #define NFSV2PROC_LINK 12 193 #define NFSV2PROC_SYMLINK 13 194 #define NFSV2PROC_MKDIR 14 195 #define NFSV2PROC_RMDIR 15 196 #define NFSV2PROC_READDIR 16 197 #define NFSV2PROC_STATFS 17 198 199 /* 200 * Constants used by the Version 3 protocol for various RPCs 201 */ 202 #define NFSV3SATTRTIME_DONTCHANGE 0 203 #define NFSV3SATTRTIME_TOSERVER 1 204 #define NFSV3SATTRTIME_TOCLIENT 2 205 206 #define NFSV3ACCESS_READ 0x01 207 #define NFSV3ACCESS_LOOKUP 0x02 208 #define NFSV3ACCESS_MODIFY 0x04 209 #define NFSV3ACCESS_EXTEND 0x08 210 #define NFSV3ACCESS_DELETE 0x10 211 #define NFSV3ACCESS_EXECUTE 0x20 212 213 #define NFSV3WRITE_UNSTABLE 0 214 #define NFSV3WRITE_DATASYNC 1 215 #define NFSV3WRITE_FILESYNC 2 216 217 #define NFSV3CREATE_UNCHECKED 0 218 #define NFSV3CREATE_GUARDED 1 219 #define NFSV3CREATE_EXCLUSIVE 2 220 221 #define NFSV3FSINFO_LINK 0x01 222 #define NFSV3FSINFO_SYMLINK 0x02 223 #define NFSV3FSINFO_HOMOGENEOUS 0x08 224 #define NFSV3FSINFO_CANSETTIME 0x10 225 226 /* Conversion macros */ 227 #define vtonfsv2_mode(t,m) \ 228 txdr_unsigned(((t) == VFIFO) ? MAKEIMODE(VCHR, (m)) : \ 229 MAKEIMODE((t), (m))) 230 #define vtonfsv3_mode(m) txdr_unsigned((m) & ALLPERMS) 231 #define nfstov_mode(a) (fxdr_unsigned(u_int32_t, (a)) & ALLPERMS) 232 #define vtonfsv2_type(a) txdr_unsigned(nfsv2_type[((int32_t)(a))]) 233 #define vtonfsv3_type(a) txdr_unsigned(nfsv3_type[((int32_t)(a))]) 234 #define nfsv2tov_type(a) nv2tov_type[fxdr_unsigned(u_int32_t,(a))&0x7] 235 #define nfsv3tov_type(a) nv3tov_type[fxdr_unsigned(u_int32_t,(a))&0x7] 236 237 /* File types */ 238 typedef enum { NFNON=0, NFREG=1, NFDIR=2, NFBLK=3, NFCHR=4, NFLNK=5, 239 NFSOCK=6, NFFIFO=7 } nfstype; 240 241 /* Structs for common parts of the rpc's */ 242 /* 243 * File Handle (32 bytes for version 2), variable up to 64 for version 3. 244 * File Handles of up to NFS_SMALLFH in size are stored directly in the 245 * nfs node, whereas larger ones are malloc'd. (This never happens when 246 * NFS_SMALLFH is set to 64.) 247 * NFS_SMALLFH should be in the range of 32 to 64 and be divisible by 4. 248 */ 249 #ifndef NFS_SMALLFH 250 #define NFS_SMALLFH 64 251 #endif 252 union nfsfh { 253 #ifdef _KERNEL 254 fhandle_t fh_generic; 255 #endif 256 u_char fh_bytes[NFS_SMALLFH]; 257 }; 258 typedef union nfsfh nfsfh_t; 259 260 struct nfsv2_time { 261 u_int32_t nfsv2_sec; 262 u_int32_t nfsv2_usec; 263 }; 264 typedef struct nfsv2_time nfstime2; 265 266 struct nfsv3_time { 267 u_int32_t nfsv3_sec; 268 u_int32_t nfsv3_nsec; 269 }; 270 typedef struct nfsv3_time nfstime3; 271 272 /* 273 * Quads are defined as arrays of 2 longs to ensure dense packing for the 274 * protocol and to facilitate xdr conversion. 275 */ 276 struct nfs_uquad { 277 u_int32_t nfsuquad[2]; 278 }; 279 typedef struct nfs_uquad nfsuint64; 280 281 /* 282 * Used to convert between two u_longs and a u_quad_t. 283 */ 284 union nfs_quadconvert { 285 u_int32_t lval[2]; 286 u_quad_t qval; 287 }; 288 typedef union nfs_quadconvert nfsquad_t; 289 290 /* 291 * NFS Version 3 special file number. 292 */ 293 struct nfsv3_spec { 294 u_int32_t specdata1; 295 u_int32_t specdata2; 296 }; 297 typedef struct nfsv3_spec nfsv3spec; 298 299 /* 300 * File attributes and setable attributes. These structures cover both 301 * NFS version 2 and the version 3 protocol. Note that the union is only 302 * used so that one pointer can refer to both variants. These structures 303 * go out on the wire and must be densely packed, so no quad data types 304 * are used. (all fields are longs or u_longs or structures of same) 305 * NB: You can't do sizeof(struct nfs_fattr), you must use the 306 * NFSX_FATTR(v3) macro. 307 */ 308 struct nfs_fattr { 309 u_int32_t fa_type; 310 u_int32_t fa_mode; 311 u_int32_t fa_nlink; 312 u_int32_t fa_uid; 313 u_int32_t fa_gid; 314 union { 315 struct { 316 u_int32_t nfsv2fa_size; 317 u_int32_t nfsv2fa_blocksize; 318 u_int32_t nfsv2fa_rdev; 319 u_int32_t nfsv2fa_blocks; 320 u_int32_t nfsv2fa_fsid; 321 u_int32_t nfsv2fa_fileid; 322 nfstime2 nfsv2fa_atime; 323 nfstime2 nfsv2fa_mtime; 324 nfstime2 nfsv2fa_ctime; 325 } fa_nfsv2; 326 struct { 327 nfsuint64 nfsv3fa_size; 328 nfsuint64 nfsv3fa_used; 329 nfsv3spec nfsv3fa_rdev; 330 nfsuint64 nfsv3fa_fsid; 331 nfsuint64 nfsv3fa_fileid; 332 nfstime3 nfsv3fa_atime; 333 nfstime3 nfsv3fa_mtime; 334 nfstime3 nfsv3fa_ctime; 335 } fa_nfsv3; 336 } fa_un; 337 }; 338 339 /* and some ugly defines for accessing union components */ 340 #define fa2_size fa_un.fa_nfsv2.nfsv2fa_size 341 #define fa2_blocksize fa_un.fa_nfsv2.nfsv2fa_blocksize 342 #define fa2_rdev fa_un.fa_nfsv2.nfsv2fa_rdev 343 #define fa2_blocks fa_un.fa_nfsv2.nfsv2fa_blocks 344 #define fa2_fsid fa_un.fa_nfsv2.nfsv2fa_fsid 345 #define fa2_fileid fa_un.fa_nfsv2.nfsv2fa_fileid 346 #define fa2_atime fa_un.fa_nfsv2.nfsv2fa_atime 347 #define fa2_mtime fa_un.fa_nfsv2.nfsv2fa_mtime 348 #define fa2_ctime fa_un.fa_nfsv2.nfsv2fa_ctime 349 #define fa3_size fa_un.fa_nfsv3.nfsv3fa_size 350 #define fa3_used fa_un.fa_nfsv3.nfsv3fa_used 351 #define fa3_rdev fa_un.fa_nfsv3.nfsv3fa_rdev 352 #define fa3_fsid fa_un.fa_nfsv3.nfsv3fa_fsid 353 #define fa3_fileid fa_un.fa_nfsv3.nfsv3fa_fileid 354 #define fa3_atime fa_un.fa_nfsv3.nfsv3fa_atime 355 #define fa3_mtime fa_un.fa_nfsv3.nfsv3fa_mtime 356 #define fa3_ctime fa_un.fa_nfsv3.nfsv3fa_ctime 357 358 struct nfsv2_sattr { 359 u_int32_t sa_mode; 360 u_int32_t sa_uid; 361 u_int32_t sa_gid; 362 u_int32_t sa_size; 363 nfstime2 sa_atime; 364 nfstime2 sa_mtime; 365 }; 366 367 /* 368 * NFS Version 3 sattr structure for the new node creation case. 369 */ 370 struct nfsv3_sattr { 371 u_int32_t sa_modetrue; 372 u_int32_t sa_mode; 373 u_int32_t sa_uidfalse; 374 u_int32_t sa_gidfalse; 375 u_int32_t sa_sizefalse; 376 u_int32_t sa_atimetype; 377 nfstime3 sa_atime; 378 u_int32_t sa_mtimetype; 379 nfstime3 sa_mtime; 380 }; 381 382 struct nfs_statfs { 383 union { 384 struct { 385 u_int32_t nfsv2sf_tsize; 386 u_int32_t nfsv2sf_bsize; 387 u_int32_t nfsv2sf_blocks; 388 u_int32_t nfsv2sf_bfree; 389 u_int32_t nfsv2sf_bavail; 390 } sf_nfsv2; 391 struct { 392 nfsuint64 nfsv3sf_tbytes; 393 nfsuint64 nfsv3sf_fbytes; 394 nfsuint64 nfsv3sf_abytes; 395 nfsuint64 nfsv3sf_tfiles; 396 nfsuint64 nfsv3sf_ffiles; 397 nfsuint64 nfsv3sf_afiles; 398 u_int32_t nfsv3sf_invarsec; 399 } sf_nfsv3; 400 } sf_un; 401 }; 402 403 #define sf_tsize sf_un.sf_nfsv2.nfsv2sf_tsize 404 #define sf_bsize sf_un.sf_nfsv2.nfsv2sf_bsize 405 #define sf_blocks sf_un.sf_nfsv2.nfsv2sf_blocks 406 #define sf_bfree sf_un.sf_nfsv2.nfsv2sf_bfree 407 #define sf_bavail sf_un.sf_nfsv2.nfsv2sf_bavail 408 #define sf_tbytes sf_un.sf_nfsv3.nfsv3sf_tbytes 409 #define sf_fbytes sf_un.sf_nfsv3.nfsv3sf_fbytes 410 #define sf_abytes sf_un.sf_nfsv3.nfsv3sf_abytes 411 #define sf_tfiles sf_un.sf_nfsv3.nfsv3sf_tfiles 412 #define sf_ffiles sf_un.sf_nfsv3.nfsv3sf_ffiles 413 #define sf_afiles sf_un.sf_nfsv3.nfsv3sf_afiles 414 #define sf_invarsec sf_un.sf_nfsv3.nfsv3sf_invarsec 415 416 struct nfsv3_fsinfo { 417 u_int32_t fs_rtmax; 418 u_int32_t fs_rtpref; 419 u_int32_t fs_rtmult; 420 u_int32_t fs_wtmax; 421 u_int32_t fs_wtpref; 422 u_int32_t fs_wtmult; 423 u_int32_t fs_dtpref; 424 nfsuint64 fs_maxfilesize; 425 nfstime3 fs_timedelta; 426 u_int32_t fs_properties; 427 }; 428 429 struct nfsv3_pathconf { 430 u_int32_t pc_linkmax; 431 u_int32_t pc_namemax; 432 u_int32_t pc_notrunc; 433 u_int32_t pc_chownrestricted; 434 u_int32_t pc_caseinsensitive; 435 u_int32_t pc_casepreserving; 436 }; 437 438 #endif /* _NFS_NFSPROTO_H_ */ 439
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