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