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Sourcecode: tcpdump version File versions

nfs.h

/* @(#) $Header: /tcpdump/master/tcpdump/nfs.h,v 1.7 2002/12/11 07:13:55 guy Exp $ (LBL) */
/*    $NetBSD: nfs.h,v 1.1 1996/05/23 22:49:53 fvdl 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. 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    8.2 (Berkeley) 3/30/95
 */

/*
 * 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 */
#if 0
#define NFSX_V3FH       (sizeof (fhandle_t)) /* size this server uses */
#endif
#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 NFSV3ATTRTIME_NMODES        3

#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 NFSV3WRITE_NMODES           3

#define NFSV3CREATE_UNCHECKED       0
#define NFSV3CREATE_GUARDED         1
#define NFSV3CREATE_EXCLUSIVE       2

#define NFSV3CREATE_NMODES          3

#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_int16_t, (a))&07777)
#define     vtonfsv2_type(a)  txdr_unsigned(nfsv2_type[((int32_t)(a))])
#define     vtonfsv3_type(a)  txdr_unsigned(nfsv3_type[((int32_t)(a))])
#define     nfsv2tov_type(a)  nv2tov_type[fxdr_unsigned(u_int32_t,(a))&0x7]
#define     nfsv3tov_type(a)  nv3tov_type[fxdr_unsigned(u_int32_t,(a))&0x7]

/* File types */
typedef enum { NFNON=0, NFREG=1, NFDIR=2, NFBLK=3, NFCHR=4, NFLNK=5,
      NFSOCK=6, NFFIFO=7 } nfs_type;

/* 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_int32_t nfsv2_sec;
      u_int32_t nfsv2_usec;
};
typedef struct nfsv2_time     nfstime2;

struct nfsv3_time {
      u_int32_t nfsv3_sec;
      u_int32_t 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_int32_t nfsuquad[2];
};
typedef     struct nfs_uquad  nfsuint64;

#if 0 /* XXX - this doesn't seemed to be used and it doesn't work
       * with non-gcc, so comment it out for now.
       */

/*
 * Used to convert between two u_longs and a u_quad_t.
 */
union nfs_quadconvert {
      u_int32_t lval[2];
      u_int64_t qval;
};
typedef union nfs_quadconvert nfsquad_t;

#endif

/*
 * NFS Version 3 special file number.
 */
struct nfsv3_spec {
      u_int32_t specdata1;
      u_int32_t 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_int32_t fa_type;
      u_int32_t fa_mode;
      u_int32_t fa_nlink;
      u_int32_t fa_uid;
      u_int32_t fa_gid;
      union {
            struct {
                  u_int32_t nfsv2fa_size;
                  u_int32_t nfsv2fa_blocksize;
                  u_int32_t nfsv2fa_rdev;
                  u_int32_t nfsv2fa_blocks;
                  u_int32_t nfsv2fa_fsid;
                  u_int32_t 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_int32_t sa_mode;
      u_int32_t sa_uid;
      u_int32_t sa_gid;
      u_int32_t sa_size;
      nfstime2  sa_atime;
      nfstime2  sa_mtime;
};

/*
 * NFS Version 3 sattr structure for the new node creation case.
 */
struct nfsv3_sattr {
      u_int32_t   sa_modeset;
      u_int32_t   sa_mode;
      u_int32_t   sa_uidset;
      u_int32_t   sa_uid;
      u_int32_t   sa_gidset;
      u_int32_t   sa_gid;
      u_int32_t   sa_sizeset;
      u_int32_t   sa_size;
      u_int32_t   sa_atimetype;
      nfstime3  sa_atime;
      u_int32_t   sa_mtimetype;
      nfstime3  sa_mtime;
};

struct nfs_statfs {
      union {
            struct {
                  u_int32_t nfsv2sf_tsize;
                  u_int32_t nfsv2sf_bsize;
                  u_int32_t nfsv2sf_blocks;
                  u_int32_t nfsv2sf_bfree;
                  u_int32_t nfsv2sf_bavail;
            } sf_nfsv2;
            struct {
                  nfsuint64 nfsv3sf_tbytes;
                  nfsuint64 nfsv3sf_fbytes;
                  nfsuint64 nfsv3sf_abytes;
                  nfsuint64 nfsv3sf_tfiles;
                  nfsuint64 nfsv3sf_ffiles;
                  nfsuint64 nfsv3sf_afiles;
                  u_int32_t 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_int32_t fs_rtmax;
      u_int32_t fs_rtpref;
      u_int32_t fs_rtmult;
      u_int32_t fs_wtmax;
      u_int32_t fs_wtpref;
      u_int32_t fs_wtmult;
      u_int32_t fs_dtpref;
      nfsuint64 fs_maxfilesize;
      nfstime3  fs_timedelta;
      u_int32_t fs_properties;
};

struct nfsv3_pathconf {
      u_int32_t pc_linkmax;
      u_int32_t pc_namemax;
      u_int32_t pc_notrunc;
      u_int32_t pc_chownrestricted;
      u_int32_t pc_caseinsensitive;
      u_int32_t pc_casepreserving;
};

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