usr/src/sys/nfs/nfsv2.h

/*
 * Copyright (c) 1989 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Rick Macklem at The University of Guelph.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      @(#)nfsv2.h     7.8 (Berkeley) 6/28/90
 */

/*
 * nfs definitions as per the version 2 specs
 */

/*
 * Constants as defined in the Sun NFS Version 2 spec.
 * "NFS: Network File System Protocol Specification" RFC1094
 */

#define NFS_PORT        2049
#define NFS_PROG        100003
#define NFS_VER2        2
#define NFS_MAXDGRAMDATA 8192
#define NFS_MAXDATA     32768
#define NFS_MAXPATHLEN  1024
#define NFS_MAXNAMLEN   255
#define NFS_FHSIZE      32
#define NFS_MAXPKTHDR   404
#define NFS_MAXPACKET   (NFS_MAXPKTHDR+NFS_MAXDATA)
#define NFS_NPROCS      18
#define NFS_FABLKSIZE   512     /* Size in bytes of a block wrt fa_blocks */

/* Stat numbers for rpc returns */
#define NFS_OK          0
#define NFSERR_PERM     1
#define NFSERR_NOENT    2
#define NFSERR_IO       5
#define NFSERR_NXIO     6
#define NFSERR_ACCES    13
#define NFSERR_EXIST    17
#define NFSERR_NODEV    19
#define NFSERR_NOTDIR   20
#define NFSERR_ISDIR    21
#define NFSERR_FBIG     27
#define NFSERR_NOSPC    28
#define NFSERR_ROFS     30
#define NFSERR_NAMETOOLONG      63
#define NFSERR_NOTEMPTY 66
#define NFSERR_DQUOT    69
#define NFSERR_STALE    70
#define NFSERR_WFLUSH   99

/* Sizes in bytes of various nfs rpc components */
#define NFSX_FH         32
#define NFSX_UNSIGNED   4
#define NFSX_FATTR      68
#define NFSX_SATTR      32
#define NFSX_COOKIE     4
#define NFSX_STATFS     20

/* nfs rpc procedure numbers */
#define NFSPROC_NULL            0
#define NFSPROC_GETATTR         1
#define NFSPROC_SETATTR         2
#define NFSPROC_ROOT            3               /* Obsolete */
#define NFSPROC_LOOKUP          4
#define NFSPROC_READLINK        5
#define NFSPROC_READ            6
#define NFSPROC_WRITECACHE      7               /* Obsolete */
#define NFSPROC_WRITE           8
#define NFSPROC_CREATE          9
#define NFSPROC_REMOVE          10
#define NFSPROC_RENAME          11
#define NFSPROC_LINK            12
#define NFSPROC_SYMLINK         13
#define NFSPROC_MKDIR           14
#define NFSPROC_RMDIR           15
#define NFSPROC_READDIR         16
#define NFSPROC_STATFS          17

/* Conversion macros */
extern int              vttoif_tab[];
#define vtonfs_mode(t,m) \
                txdr_unsigned(((t) == VFIFO) ? MAKEIMODE(VCHR, (m)) : \
                                MAKEIMODE((t), (m)))
#define nfstov_mode(a)  (fxdr_unsigned(u_short, (a))&07777)
#define vtonfs_type(a)  txdr_unsigned(nfs_type[((long)(a))])
#define nfstov_type(a)  ntov_type[fxdr_unsigned(u_long,(a))&0x7]

/* File types */
typedef enum { NFNON=0, NFREG=1, NFDIR=2, NFBLK=3, NFCHR=4, NFLNK=5 } nfstype;

/* Structs for common parts of the rpc's */
struct nfsv2_time {
        u_long  tv_sec;
        u_long  tv_usec;
};

struct nfsv2_fattr {
        u_long  fa_type;
        u_long  fa_mode;
        u_long  fa_nlink;
        u_long  fa_uid;
        u_long  fa_gid;
        u_long  fa_size;
        u_long  fa_blocksize;
        u_long  fa_rdev;
        u_long  fa_blocks;
        u_long  fa_fsid;
        u_long  fa_fileid;
        struct nfsv2_time fa_atime;
        struct nfsv2_time fa_mtime;
        struct nfsv2_time fa_ctime;
};

struct nfsv2_sattr {
        u_long  sa_mode;
        u_long  sa_uid;
        u_long  sa_gid;
        u_long  sa_size;
        struct nfsv2_time sa_atime;
        struct nfsv2_time sa_mtime;
};

struct nfsv2_statfs {
        u_long  sf_tsize;
        u_long  sf_bsize;
        u_long  sf_blocks;
        u_long  sf_bfree;
        u_long  sf_bavail;
};