include/linux/nfs.h

   1 /*
   2  * NFS protocol definitions
   3  *
   4  * This file contains constants mostly for Version 2 of the protocol,
   5  * but also has a couple of NFSv3 bits in (notably the error codes).
   6  */
   7 #ifndef _LINUX_NFS_H
   8 #define _LINUX_NFS_H
   9
  10 #include <linux/sunrpc/msg_prot.h>
  11
  12 #define NFS_PROGRAM     100003
  13 #define NFS_PORT        2049
  14 #define NFS_MAXDATA     8192
  15 #define NFS_MAXPATHLEN  1024
  16 #define NFS_MAXNAMLEN   255
  17 #define NFS_MAXGROUPS   16
  18 #define NFS_FHSIZE      32
  19 #define NFS_COOKIESIZE  4
  20 #define NFS_FIFO_DEV    (-1)
  21 #define NFSMODE_FMT     0170000
  22 #define NFSMODE_DIR     0040000
  23 #define NFSMODE_CHR     0020000
  24 #define NFSMODE_BLK     0060000
  25 #define NFSMODE_REG     0100000
  26 #define NFSMODE_LNK     0120000
  27 #define NFSMODE_SOCK    0140000
  28 #define NFSMODE_FIFO    0010000
  29
  30 #define NFS_MNT_PROGRAM 100005
  31 #define NFS_MNT_PORT    627
  32
  33 /*
  34  * NFS stats. The good thing with these values is that NFSv3 errors are
  35  * a superset of NFSv2 errors (with the exception of NFSERR_WFLUSH which
  36  * no-one uses anyway), so we can happily mix code as long as we make sure
  37  * no NFSv3 errors are returned to NFSv2 clients.
  38  * Error codes that have a `--' in the v2 column are not part of the
  39  * standard, but seem to be widely used nevertheless.
  40  */
  41  enum nfs_stat {
  42         NFS_OK = 0,                     /* v2 v3 */
  43         NFSERR_PERM = 1,                /* v2 v3 */
  44         NFSERR_NOENT = 2,               /* v2 v3 */
  45         NFSERR_IO = 5,                  /* v2 v3 */
  46         NFSERR_NXIO = 6,                /* v2 v3 */
  47         NFSERR_EAGAIN = 11,             /* v2 v3 */
  48         NFSERR_ACCES = 13,              /* v2 v3 */
  49         NFSERR_EXIST = 17,              /* v2 v3 */
  50         NFSERR_XDEV = 18,               /*    v3 */
  51         NFSERR_NODEV = 19,              /* v2 v3 */
  52         NFSERR_NOTDIR = 20,             /* v2 v3 */
  53         NFSERR_ISDIR = 21,              /* v2 v3 */
  54         NFSERR_INVAL = 22,              /* v2 v3 that Sun forgot */
  55         NFSERR_FBIG = 27,               /* v2 v3 */
  56         NFSERR_NOSPC = 28,              /* v2 v3 */
  57         NFSERR_ROFS = 30,               /* v2 v3 */
  58         NFSERR_MLINK = 31,              /*    v3 */
  59         NFSERR_OPNOTSUPP = 45,          /* v2 v3 */
  60         NFSERR_NAMETOOLONG = 63,        /* v2 v3 */
  61         NFSERR_NOTEMPTY = 66,           /* v2 v3 */
  62         NFSERR_DQUOT = 69,              /* v2 v3 */
  63         NFSERR_STALE = 70,              /* v2 v3 */
  64         NFSERR_REMOTE = 71,             /* v2 v3 */
  65         NFSERR_WFLUSH = 99,             /* v2    */
  66         NFSERR_BADHANDLE = 10001,       /*    v3 */
  67         NFSERR_NOT_SYNC = 10002,        /*    v3 */
  68         NFSERR_BAD_COOKIE = 10003,      /*    v3 */
  69         NFSERR_NOTSUPP = 10004,         /*    v3 */
  70         NFSERR_TOOSMALL = 10005,        /*    v3 */
  71         NFSERR_SERVERFAULT = 10006,     /*    v3 */
  72         NFSERR_BADTYPE = 10007,         /*    v3 */
  73         NFSERR_JUKEBOX = 10008          /*    v3 */
  74  };
  75
  76 /* NFSv2 file types - beware, these are not the same in NFSv3 */
  77
  78 enum nfs_ftype {
  79         NFNON = 0,
  80         NFREG = 1,
  81         NFDIR = 2,
  82         NFBLK = 3,
  83         NFCHR = 4,
  84         NFLNK = 5,
  85         NFSOCK = 6,
  86         NFBAD = 7,
  87         NFFIFO = 8
  88 };
  89
  90 #if defined(__KERNEL__)
  91 /*
  92  * This is the kernel NFS client file handle representation
  93  */
  94 #define NFS_MAXFHSIZE           64
  95 struct nfs_fh {
  96         unsigned short          size;
  97         unsigned char           data[NFS_MAXFHSIZE];
  98 };
  99
 100 /*
 101  * This is really a general kernel constant, but since nothing like
 102  * this is defined in the kernel headers, I have to do it here.
 103  */
 104 #define NFS_OFFSET_MAX          ((__s64)((~(__u64)0) >> 1))
 105
 106
 107 enum nfs3_stable_how {
 108         NFS_UNSTABLE = 0,
 109         NFS_DATA_SYNC = 1,
 110         NFS_FILE_SYNC = 2
 111 };
 112 #endif /* __KERNEL__ */
 113 #endif /* _LINUX_NFS_H */