linux/include/uapi/linux/nfs.h
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   1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2/*
   3 * NFS protocol definitions
   4 *
   5 * This file contains constants mostly for Version 2 of the protocol,
   6 * but also has a couple of NFSv3 bits in (notably the error codes).
   7 */
   8#ifndef _UAPI_LINUX_NFS_H
   9#define _UAPI_LINUX_NFS_H
  10
  11#include <linux/types.h>
  12
  13#define NFS_PROGRAM     100003
  14#define NFS_PORT        2049
  15#define NFS_RDMA_PORT   20049
  16#define NFS_MAXDATA     8192
  17#define NFS_MAXPATHLEN  1024
  18#define NFS_MAXNAMLEN   255
  19#define NFS_MAXGROUPS   16
  20#define NFS_FHSIZE      32
  21#define NFS_COOKIESIZE  4
  22#define NFS_FIFO_DEV    (-1)
  23#define NFSMODE_FMT     0170000
  24#define NFSMODE_DIR     0040000
  25#define NFSMODE_CHR     0020000
  26#define NFSMODE_BLK     0060000
  27#define NFSMODE_REG     0100000
  28#define NFSMODE_LNK     0120000
  29#define NFSMODE_SOCK    0140000
  30#define NFSMODE_FIFO    0010000
  31
  32#define NFS_MNT_PROGRAM         100005
  33#define NFS_MNT_VERSION         1
  34#define NFS_MNT3_VERSION        3
  35
  36#define NFS_PIPE_DIRNAME "nfs"
  37
  38/*
  39 * NFS stats. The good thing with these values is that NFSv3 errors are
  40 * a superset of NFSv2 errors (with the exception of NFSERR_WFLUSH which
  41 * no-one uses anyway), so we can happily mix code as long as we make sure
  42 * no NFSv3 errors are returned to NFSv2 clients.
  43 * Error codes that have a `--' in the v2 column are not part of the
  44 * standard, but seem to be widely used nevertheless.
  45 */
  46 enum nfs_stat {
  47        NFS_OK = 0,                     /* v2 v3 v4 */
  48        NFSERR_PERM = 1,                /* v2 v3 v4 */
  49        NFSERR_NOENT = 2,               /* v2 v3 v4 */
  50        NFSERR_IO = 5,                  /* v2 v3 v4 */
  51        NFSERR_NXIO = 6,                /* v2 v3 v4 */
  52        NFSERR_EAGAIN = 11,             /* v2 v3 */
  53        NFSERR_ACCES = 13,              /* v2 v3 v4 */
  54        NFSERR_EXIST = 17,              /* v2 v3 v4 */
  55        NFSERR_XDEV = 18,               /*    v3 v4 */
  56        NFSERR_NODEV = 19,              /* v2 v3 v4 */
  57        NFSERR_NOTDIR = 20,             /* v2 v3 v4 */
  58        NFSERR_ISDIR = 21,              /* v2 v3 v4 */
  59        NFSERR_INVAL = 22,              /* v2 v3 v4 */
  60        NFSERR_FBIG = 27,               /* v2 v3 v4 */
  61        NFSERR_NOSPC = 28,              /* v2 v3 v4 */
  62        NFSERR_ROFS = 30,               /* v2 v3 v4 */
  63        NFSERR_MLINK = 31,              /*    v3 v4 */
  64        NFSERR_OPNOTSUPP = 45,          /* v2 v3 */
  65        NFSERR_NAMETOOLONG = 63,        /* v2 v3 v4 */
  66        NFSERR_NOTEMPTY = 66,           /* v2 v3 v4 */
  67        NFSERR_DQUOT = 69,              /* v2 v3 v4 */
  68        NFSERR_STALE = 70,              /* v2 v3 v4 */
  69        NFSERR_REMOTE = 71,             /* v2 v3 */
  70        NFSERR_WFLUSH = 99,             /* v2    */
  71        NFSERR_BADHANDLE = 10001,       /*    v3 v4 */
  72        NFSERR_NOT_SYNC = 10002,        /*    v3 */
  73        NFSERR_BAD_COOKIE = 10003,      /*    v3 v4 */
  74        NFSERR_NOTSUPP = 10004,         /*    v3 v4 */
  75        NFSERR_TOOSMALL = 10005,        /*    v3 v4 */
  76        NFSERR_SERVERFAULT = 10006,     /*    v3 v4 */
  77        NFSERR_BADTYPE = 10007,         /*    v3 v4 */
  78        NFSERR_JUKEBOX = 10008,         /*    v3 v4 */
  79        NFSERR_SAME = 10009,            /*       v4 */
  80        NFSERR_DENIED = 10010,          /*       v4 */
  81        NFSERR_EXPIRED = 10011,         /*       v4 */
  82        NFSERR_LOCKED = 10012,          /*       v4 */
  83        NFSERR_GRACE = 10013,           /*       v4 */
  84        NFSERR_FHEXPIRED = 10014,       /*       v4 */
  85        NFSERR_SHARE_DENIED = 10015,    /*       v4 */
  86        NFSERR_WRONGSEC = 10016,        /*       v4 */
  87        NFSERR_CLID_INUSE = 10017,      /*       v4 */
  88        NFSERR_RESOURCE = 10018,        /*       v4 */
  89        NFSERR_MOVED = 10019,           /*       v4 */
  90        NFSERR_NOFILEHANDLE = 10020,    /*       v4 */
  91        NFSERR_MINOR_VERS_MISMATCH = 10021,   /* v4 */
  92        NFSERR_STALE_CLIENTID = 10022,  /*       v4 */
  93        NFSERR_STALE_STATEID = 10023,   /*       v4 */
  94        NFSERR_OLD_STATEID = 10024,     /*       v4 */
  95        NFSERR_BAD_STATEID = 10025,     /*       v4 */  
  96        NFSERR_BAD_SEQID = 10026,       /*       v4 */
  97        NFSERR_NOT_SAME = 10027,        /*       v4 */
  98        NFSERR_LOCK_RANGE = 10028,      /*       v4 */
  99        NFSERR_SYMLINK = 10029,         /*       v4 */
 100        NFSERR_RESTOREFH = 10030,       /*       v4 */
 101        NFSERR_LEASE_MOVED = 10031,     /*       v4 */
 102        NFSERR_ATTRNOTSUPP = 10032,     /*       v4 */
 103        NFSERR_NO_GRACE = 10033,        /*       v4 */
 104        NFSERR_RECLAIM_BAD = 10034,     /*       v4 */
 105        NFSERR_RECLAIM_CONFLICT = 10035,/*       v4 */
 106        NFSERR_BAD_XDR = 10036,         /*       v4 */
 107        NFSERR_LOCKS_HELD = 10037,      /*       v4 */
 108        NFSERR_OPENMODE = 10038,       /*       v4 */
 109        NFSERR_BADOWNER = 10039,       /*       v4 */
 110        NFSERR_BADCHAR = 10040,        /*       v4 */
 111        NFSERR_BADNAME = 10041,        /*       v4 */
 112        NFSERR_BAD_RANGE = 10042,      /*       v4 */
 113        NFSERR_LOCK_NOTSUPP = 10043,   /*       v4 */
 114        NFSERR_OP_ILLEGAL = 10044,     /*       v4 */
 115        NFSERR_DEADLOCK = 10045,       /*       v4 */
 116        NFSERR_FILE_OPEN = 10046,      /*       v4 */
 117        NFSERR_ADMIN_REVOKED = 10047,  /*       v4 */
 118        NFSERR_CB_PATH_DOWN = 10048,   /*       v4 */
 119};
 120
 121/* NFSv2 file types - beware, these are not the same in NFSv3 */
 122
 123enum nfs_ftype {
 124        NFNON = 0,
 125        NFREG = 1,
 126        NFDIR = 2,
 127        NFBLK = 3,
 128        NFCHR = 4,
 129        NFLNK = 5,
 130        NFSOCK = 6,
 131        NFBAD = 7,
 132        NFFIFO = 8
 133};
 134
 135#endif /* _UAPI_LINUX_NFS_H */
 136