Subversion Repositories openrisc_2011-10-31

/*

 * 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. 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.

 *

 *      @(#)nfsproto.h  8.1 (Berkeley) 6/10/93

 * $Id: nfsproto.h,v 1.2 2001-09-27 12:01:56 chris Exp $

 */

#ifndef _NFS_NFSPROTO_H_

#define _NFS_NFSPROTO_H_

/*

 * nfs definitions as per the Version 2 and 3 specs

 */

/*

 * Constants as defined in the Sun NFS Version 2 and 3 specs.

 * "NFS: Network File System Protocol Specification" RFC1094

 * and in the "NFS: Network File System Version 3 Protocol

 * Specification"

 */

#define NFS_PORT        2049

#define NFS_PROG        100003

#define NFS_VER2        2

#define NFS_VER3        3

#define NFS_V2MAXDATA   8192

#define NFS_MAXDGRAMDATA 16384

#define NFS_MAXDATA     32768

#define NFS_MAXPATHLEN  1024

#define NFS_MAXNAMLEN   255

#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 (version 2 and 3) */

#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_XDEV             18      /* Version 3 only */

#define NFSERR_NODEV            19

#define NFSERR_NOTDIR           20

#define NFSERR_ISDIR            21

#define NFSERR_INVAL            22      /* Version 3 only */

#define NFSERR_FBIG             27

#define NFSERR_NOSPC            28

#define NFSERR_ROFS             30

#define NFSERR_MLINK            31      /* Version 3 only */

#define NFSERR_NAMETOL          63

#define NFSERR_NOTEMPTY         66

#define NFSERR_DQUOT            69

#define NFSERR_STALE            70

#define NFSERR_REMOTE           71      /* Version 3 only */

#define NFSERR_WFLUSH           99      /* Version 2 only */

#define NFSERR_BADHANDLE        10001   /* The rest Version 3 only */

#define NFSERR_NOT_SYNC         10002

#define NFSERR_BAD_COOKIE       10003

#define NFSERR_NOTSUPP          10004

#define NFSERR_TOOSMALL         10005

#define NFSERR_SERVERFAULT      10006

#define NFSERR_BADTYPE          10007

#define NFSERR_JUKEBOX          10008

#define NFSERR_TRYLATER         NFSERR_JUKEBOX

#define NFSERR_STALEWRITEVERF   30001   /* Fake return for nfs_commit() */

#define NFSERR_RETVOID          0x20000000 /* Return void, not error */

#define NFSERR_AUTHERR          0x40000000 /* Mark an authentication error */

#define NFSERR_RETERR           0x80000000 /* Mark an error return for V3 */

/* Sizes in bytes of various nfs rpc components */

#define NFSX_UNSIGNED   4

/* specific to NFS Version 2 */

#define NFSX_V2FH       32

#define NFSX_V2FATTR    68

#define NFSX_V2SATTR    32

#define NFSX_V2COOKIE   4

#define NFSX_V2STATFS   20

/* specific to NFS Version 3 */

#define NFSX_V3FH               (sizeof (fhandle_t)) /* size this server uses */

#define NFSX_V3FHMAX            64      /* max. allowed by protocol */

#define NFSX_V3FATTR            84

#define NFSX_V3SATTR            60      /* max. all fields filled in */

#define NFSX_V3SRVSATTR         (sizeof (struct nfsv3_sattr))

#define NFSX_V3POSTOPATTR       (NFSX_V3FATTR + NFSX_UNSIGNED)

#define NFSX_V3WCCDATA          (NFSX_V3POSTOPATTR + 8 * NFSX_UNSIGNED)

#define NFSX_V3COOKIEVERF       8

#define NFSX_V3WRITEVERF        8

#define NFSX_V3CREATEVERF       8

#define NFSX_V3STATFS           52

#define NFSX_V3FSINFO           48

#define NFSX_V3PATHCONF         24

/* variants for both versions */

#define NFSX_FH(v3)             ((v3) ? (NFSX_V3FHMAX + NFSX_UNSIGNED) : \

                                        NFSX_V2FH)

#define NFSX_SRVFH(v3)          ((v3) ? NFSX_V3FH : NFSX_V2FH)

#define NFSX_FATTR(v3)          ((v3) ? NFSX_V3FATTR : NFSX_V2FATTR)

#define NFSX_PREOPATTR(v3)      ((v3) ? (7 * NFSX_UNSIGNED) : 0)

#define NFSX_POSTOPATTR(v3)     ((v3) ? (NFSX_V3FATTR + NFSX_UNSIGNED) : 0)

#define NFSX_POSTOPORFATTR(v3)  ((v3) ? (NFSX_V3FATTR + NFSX_UNSIGNED) : \

                                        NFSX_V2FATTR)

#define NFSX_WCCDATA(v3)        ((v3) ? NFSX_V3WCCDATA : 0)

#define NFSX_WCCORFATTR(v3)     ((v3) ? NFSX_V3WCCDATA : NFSX_V2FATTR)

#define NFSX_SATTR(v3)          ((v3) ? NFSX_V3SATTR : NFSX_V2SATTR)

#define NFSX_COOKIEVERF(v3)     ((v3) ? NFSX_V3COOKIEVERF : 0)

#define NFSX_WRITEVERF(v3)      ((v3) ? NFSX_V3WRITEVERF : 0)

#define NFSX_READDIR(v3)        ((v3) ? (5 * NFSX_UNSIGNED) : \

                                        (2 * NFSX_UNSIGNED))

#define NFSX_STATFS(v3)         ((v3) ? NFSX_V3STATFS : NFSX_V2STATFS)

/* nfs rpc procedure numbers (before version mapping) */

#define NFSPROC_NULL            0

#define NFSPROC_GETATTR         1

#define NFSPROC_SETATTR         2

#define NFSPROC_LOOKUP          3

#define NFSPROC_ACCESS          4

#define NFSPROC_READLINK        5

#define NFSPROC_READ            6

#define NFSPROC_WRITE           7

#define NFSPROC_CREATE          8

#define NFSPROC_MKDIR           9

#define NFSPROC_SYMLINK         10

#define NFSPROC_MKNOD           11

#define NFSPROC_REMOVE          12

#define NFSPROC_RMDIR           13

#define NFSPROC_RENAME          14

#define NFSPROC_LINK            15

#define NFSPROC_READDIR         16

#define NFSPROC_READDIRPLUS     17

#define NFSPROC_FSSTAT          18

#define NFSPROC_FSINFO          19

#define NFSPROC_PATHCONF        20

#define NFSPROC_COMMIT          21

/* And leasing (nqnfs) procedure numbers (must be last) */

#define NQNFSPROC_GETLEASE      22

#define NQNFSPROC_VACATED       23

#define NQNFSPROC_EVICTED       24

#define NFSPROC_NOOP            25

#define NFS_NPROCS              26

/* Actual Version 2 procedure numbers */

#define NFSV2PROC_NULL          0

#define NFSV2PROC_GETATTR       1

#define NFSV2PROC_SETATTR       2

#define NFSV2PROC_NOOP          3

#define NFSV2PROC_ROOT          NFSV2PROC_NOOP  /* Obsolete */

#define NFSV2PROC_LOOKUP        4

#define NFSV2PROC_READLINK      5

#define NFSV2PROC_READ          6

#define NFSV2PROC_WRITECACHE    NFSV2PROC_NOOP  /* Obsolete */

#define NFSV2PROC_WRITE         8

#define NFSV2PROC_CREATE        9

#define NFSV2PROC_REMOVE        10

#define NFSV2PROC_RENAME        11

#define NFSV2PROC_LINK          12

#define NFSV2PROC_SYMLINK       13

#define NFSV2PROC_MKDIR         14

#define NFSV2PROC_RMDIR         15

#define NFSV2PROC_READDIR       16

#define NFSV2PROC_STATFS        17

/*

 * Constants used by the Version 3 protocol for various RPCs

 */

#define NFSV3SATTRTIME_DONTCHANGE       0

#define NFSV3SATTRTIME_TOSERVER         1

#define NFSV3SATTRTIME_TOCLIENT         2

#define NFSV3ACCESS_READ                0x01

#define NFSV3ACCESS_LOOKUP              0x02

#define NFSV3ACCESS_MODIFY              0x04

#define NFSV3ACCESS_EXTEND              0x08

#define NFSV3ACCESS_DELETE              0x10

#define NFSV3ACCESS_EXECUTE             0x20

#define NFSV3WRITE_UNSTABLE             0

#define NFSV3WRITE_DATASYNC             1

#define NFSV3WRITE_FILESYNC             2

#define NFSV3CREATE_UNCHECKED           0

#define NFSV3CREATE_GUARDED             1

#define NFSV3CREATE_EXCLUSIVE           2

#define NFSV3FSINFO_LINK                0x01

#define NFSV3FSINFO_SYMLINK             0x02

#define NFSV3FSINFO_HOMOGENEOUS         0x08

#define NFSV3FSINFO_CANSETTIME          0x10

/* Conversion macros */

#define vtonfsv2_mode(t,m) \

                txdr_unsigned(((t) == VFIFO) ? MAKEIMODE(VCHR, (m)) : \

                                MAKEIMODE((t), (m)))

#define vtonfsv3_mode(m)        txdr_unsigned((m) & 07777)

#define nfstov_mode(a)          (fxdr_unsigned(u_short, (a))&07777)

#define vtonfsv2_type(a)        txdr_unsigned(nfsv2_type[((long)(a))])

#define vtonfsv3_type(a)        txdr_unsigned(nfsv3_type[((long)(a))])

#define nfsv2tov_type(a)        nv2tov_type[fxdr_unsigned(u_long,(a))&0x7]

#define nfsv3tov_type(a)        nv3tov_type[fxdr_unsigned(u_long,(a))&0x7]

/* File types */

typedef enum { NFNON=0, NFREG=1, NFDIR=2, NFBLK=3, NFCHR=4, NFLNK=5,

        NFSOCK=6, NFFIFO=7 } nfstype;

/* Structs for common parts of the rpc's */

/*

 * File Handle (32 bytes for version 2), variable up to 64 for version 3.

 * File Handles of up to NFS_SMALLFH in size are stored directly in the

 * nfs node, whereas larger ones are malloc'd. (This never happens when

 * NFS_SMALLFH is set to 64.)

 * NFS_SMALLFH should be in the range of 32 to 64 and be divisible by 4.

 */

#ifndef NFS_SMALLFH

#define NFS_SMALLFH     64

#endif

union nfsfh {

        fhandle_t       fh_generic;

        u_char          fh_bytes[NFS_SMALLFH];

};

typedef union nfsfh nfsfh_t;

struct nfsv2_time {

        u_long  nfsv2_sec;

        u_long  nfsv2_usec;

};

typedef struct nfsv2_time       nfstime2;

struct nfsv3_time {

        u_long  nfsv3_sec;

        u_long  nfsv3_nsec;

};

typedef struct nfsv3_time       nfstime3;

/*

 * Quads are defined as arrays of 2 longs to ensure dense packing for the

 * protocol and to facilitate xdr conversion.

 */

struct nfs_uquad {

        u_long  nfsuquad[2];

};

typedef struct nfs_uquad        nfsuint64;

/*

 * Used to convert between two u_longs and a u_quad_t.

 */

union nfs_quadconvert {

        u_long          lval[2];

        u_quad_t        qval;

};

typedef union nfs_quadconvert   nfsquad_t;

/*

 * NFS Version 3 special file number.

 */

struct nfsv3_spec {

        u_long  specdata1;

        u_long  specdata2;

};

typedef struct nfsv3_spec       nfsv3spec;

/*

 * File attributes and setable attributes. These structures cover both

 * NFS version 2 and the version 3 protocol. Note that the union is only

 * used so that one pointer can refer to both variants. These structures

 * go out on the wire and must be densely packed, so no quad data types

 * are used. (all fields are longs or u_longs or structures of same)

 * NB: You can't do sizeof(struct nfs_fattr), you must use the

 *     NFSX_FATTR(v3) macro.

 */

struct nfs_fattr {

        u_long  fa_type;

        u_long  fa_mode;

        u_long  fa_nlink;

        u_long  fa_uid;

        u_long  fa_gid;

        union {

                struct {

                        u_long          nfsv2fa_size;

                        u_long          nfsv2fa_blocksize;

                        u_long          nfsv2fa_rdev;

                        u_long          nfsv2fa_blocks;

                        u_long          nfsv2fa_fsid;

                        u_long          nfsv2fa_fileid;

                        nfstime2        nfsv2fa_atime;

                        nfstime2        nfsv2fa_mtime;

                        nfstime2        nfsv2fa_ctime;

                } fa_nfsv2;

                struct {

                        nfsuint64       nfsv3fa_size;

                        nfsuint64       nfsv3fa_used;

                        nfsv3spec       nfsv3fa_rdev;

                        nfsuint64       nfsv3fa_fsid;

                        nfsuint64       nfsv3fa_fileid;

                        nfstime3        nfsv3fa_atime;

                        nfstime3        nfsv3fa_mtime;

                        nfstime3        nfsv3fa_ctime;

                } fa_nfsv3;

        } fa_un;

};

/* and some ugly defines for accessing union components */

#define fa2_size                fa_un.fa_nfsv2.nfsv2fa_size

#define fa2_blocksize           fa_un.fa_nfsv2.nfsv2fa_blocksize

#define fa2_rdev                fa_un.fa_nfsv2.nfsv2fa_rdev

#define fa2_blocks              fa_un.fa_nfsv2.nfsv2fa_blocks

#define fa2_fsid                fa_un.fa_nfsv2.nfsv2fa_fsid

#define fa2_fileid              fa_un.fa_nfsv2.nfsv2fa_fileid

#define fa2_atime               fa_un.fa_nfsv2.nfsv2fa_atime

#define fa2_mtime               fa_un.fa_nfsv2.nfsv2fa_mtime

#define fa2_ctime               fa_un.fa_nfsv2.nfsv2fa_ctime

#define fa3_size                fa_un.fa_nfsv3.nfsv3fa_size

#define fa3_used                fa_un.fa_nfsv3.nfsv3fa_used

#define fa3_rdev                fa_un.fa_nfsv3.nfsv3fa_rdev

#define fa3_fsid                fa_un.fa_nfsv3.nfsv3fa_fsid

#define fa3_fileid              fa_un.fa_nfsv3.nfsv3fa_fileid

#define fa3_atime               fa_un.fa_nfsv3.nfsv3fa_atime

#define fa3_mtime               fa_un.fa_nfsv3.nfsv3fa_mtime

#define fa3_ctime               fa_un.fa_nfsv3.nfsv3fa_ctime

struct nfsv2_sattr {

        u_long          sa_mode;

        u_long          sa_uid;

        u_long          sa_gid;

        u_long          sa_size;

        nfstime2        sa_atime;

        nfstime2        sa_mtime;

};

/*

 * NFS Version 3 sattr structure for the new node creation case.

 */

struct nfsv3_sattr {

        u_long          sa_modetrue;

        u_long          sa_mode;

        u_long          sa_uidtrue;

        u_long          sa_uid;

        u_long          sa_gidtrue;

        u_long          sa_gid;

        u_long          sa_sizefalse;

        u_long          sa_atimetype;

        nfstime3        sa_atime;

        u_long          sa_mtimetype;

        nfstime3        sa_mtime;

};

struct nfs_statfs {

        union {

                struct {

                        u_long          nfsv2sf_tsize;

                        u_long          nfsv2sf_bsize;

                        u_long          nfsv2sf_blocks;

                        u_long          nfsv2sf_bfree;

                        u_long          nfsv2sf_bavail;

                } sf_nfsv2;

                struct {

                        nfsuint64       nfsv3sf_tbytes;

                        nfsuint64       nfsv3sf_fbytes;

                        nfsuint64       nfsv3sf_abytes;

                        nfsuint64       nfsv3sf_tfiles;

                        nfsuint64       nfsv3sf_ffiles;

                        nfsuint64       nfsv3sf_afiles;

                        u_long          nfsv3sf_invarsec;

                } sf_nfsv3;

        } sf_un;

};

#define sf_tsize        sf_un.sf_nfsv2.nfsv2sf_tsize

#define sf_bsize        sf_un.sf_nfsv2.nfsv2sf_bsize

#define sf_blocks       sf_un.sf_nfsv2.nfsv2sf_blocks

#define sf_bfree        sf_un.sf_nfsv2.nfsv2sf_bfree

#define sf_bavail       sf_un.sf_nfsv2.nfsv2sf_bavail

#define sf_tbytes       sf_un.sf_nfsv3.nfsv3sf_tbytes

#define sf_fbytes       sf_un.sf_nfsv3.nfsv3sf_fbytes

#define sf_abytes       sf_un.sf_nfsv3.nfsv3sf_abytes

#define sf_tfiles       sf_un.sf_nfsv3.nfsv3sf_tfiles

#define sf_ffiles       sf_un.sf_nfsv3.nfsv3sf_ffiles

#define sf_afiles       sf_un.sf_nfsv3.nfsv3sf_afiles

#define sf_invarsec     sf_un.sf_nfsv3.nfsv3sf_invarsec

struct nfsv3_fsinfo {

        u_long          fs_rtmax;

        u_long          fs_rtpref;

        u_long          fs_rtmult;

        u_long          fs_wtmax;

        u_long          fs_wtpref;

        u_long          fs_wtmult;

        u_long          fs_dtpref;

        nfsuint64       fs_maxfilesize;

        nfstime3        fs_timedelta;

        u_long          fs_properties;

};

struct nfsv3_pathconf {

        u_long          pc_linkmax;

        u_long          pc_namemax;

        u_long          pc_notrunc;

        u_long          pc_chownrestricted;

        u_long          pc_caseinsensitive;

        u_long          pc_casepreserving;

};

#endif