/*      $NetBSD: nfsv2.h,v 1.5 2023/12/12 09:12:55 mlelstv Exp $        */

/*
* Copyright (c) 1989, 1993
*      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. 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     8.1 (Berkeley) 6/10/93
*/

/*
* 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_MINPACKET   20
#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_NAMETOL  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_STATFS     20
#define NFSX_COOKIE     4

/* nfs rpc procedure numbers */
#define NFSPROC_NULL            0
#define NFSPROC_GETATTR         1
#define NFSPROC_SETATTR         2
#define NFSPROC_NOOP            3
#define NFSPROC_ROOT            NFSPROC_NOOP    /* Obsolete */
#define NFSPROC_LOOKUP          4
#define NFSPROC_READLINK        5
#define NFSPROC_READ            6
#define NFSPROC_WRITECACHE      NFSPROC_NOOP    /* 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

#define NFS_NPROCS              18


/* 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 {
       n_long  nfs_sec;
       n_long  nfs_usec;
};

/*
* File attributes and setable attributes.
*/
struct nfsv2_fattr {
       n_long  fa_type;
       n_long  fa_mode;
       n_long  fa_nlink;
       n_long  fa_uid;
       n_long  fa_gid;
       n_long  fa_size;
       n_long  fa_blocksize;
       n_long  fa_rdev;
       n_long  fa_blocks;
       n_long  fa_fsid;
       n_long  fa_fileid;
       struct nfsv2_time fa_atime;
       struct nfsv2_time fa_mtime;
       struct nfsv2_time fa_ctime;
};