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_NAMETOOLONG = 63, /* v2 v3 v4 */
65 NFSERR_NOTEMPTY = 66, /* v2 v3 v4 */
66 NFSERR_DQUOT = 69, /* v2 v3 v4 */
67 NFSERR_STALE = 70, /* v2 v3 v4 */
68 NFSERR_REMOTE = 71, /* v2 v3 */
69 NFSERR_WFLUSH = 99, /* v2 */
70 NFSERR_BADHANDLE = 10001, /* v3 v4 */
71 NFSERR_NOT_SYNC = 10002, /* v3 */
72 NFSERR_BAD_COOKIE = 10003, /* v3 v4 */
73 NFSERR_NOTSUPP = 10004, /* v3 v4 */
74 NFSERR_TOOSMALL = 10005, /* v3 v4 */
75 NFSERR_SERVERFAULT = 10006, /* v3 v4 */
76 NFSERR_BADTYPE = 10007, /* v3 v4 */
77 NFSERR_JUKEBOX = 10008, /* v3 v4 */
78 NFSERR_SAME = 10009, /* v4 */
79 NFSERR_DENIED = 10010, /* v4 */
80 NFSERR_EXPIRED = 10011, /* v4 */
81 NFSERR_LOCKED = 10012, /* v4 */
82 NFSERR_GRACE = 10013, /* v4 */
83 NFSERR_FHEXPIRED = 10014, /* v4 */
84 NFSERR_SHARE_DENIED = 10015, /* v4 */
85 NFSERR_WRONGSEC = 10016, /* v4 */
86 NFSERR_CLID_INUSE = 10017, /* v4 */
87 NFSERR_RESOURCE = 10018, /* v4 */
88 NFSERR_MOVED = 10019, /* v4 */
89 NFSERR_NOFILEHANDLE = 10020, /* v4 */
90 NFSERR_MINOR_VERS_MISMATCH = 10021, /* v4 */
91 NFSERR_STALE_CLIENTID = 10022, /* v4 */
92 NFSERR_STALE_STATEID = 10023, /* v4 */
93 NFSERR_OLD_STATEID = 10024, /* v4 */
94 NFSERR_BAD_STATEID = 10025, /* v4 */
95 NFSERR_BAD_SEQID = 10026, /* v4 */
96 NFSERR_NOT_SAME = 10027, /* v4 */
97 NFSERR_LOCK_RANGE = 10028, /* v4 */
98 NFSERR_SYMLINK = 10029, /* v4 */
99 NFSERR_RESTOREFH = 10030, /* v4 */
100 NFSERR_LEASE_MOVED = 10031, /* v4 */
101 NFSERR_ATTRNOTSUPP = 10032, /* v4 */
102 NFSERR_NO_GRACE = 10033, /* v4 */
103 NFSERR_RECLAIM_BAD = 10034, /* v4 */
104 NFSERR_RECLAIM_CONFLICT = 10035,/* v4 */
105 NFSERR_BAD_XDR = 10036, /* v4 */
106 NFSERR_LOCKS_HELD = 10037, /* v4 */
107 NFSERR_OPENMODE = 10038, /* v4 */
108 NFSERR_BADOWNER = 10039, /* v4 */
109 NFSERR_BADCHAR = 10040, /* v4 */
110 NFSERR_BADNAME = 10041, /* v4 */
111 NFSERR_BAD_RANGE = 10042, /* v4 */
112 NFSERR_LOCK_NOTSUPP = 10043, /* v4 */
113 NFSERR_OP_ILLEGAL = 10044, /* v4 */
114 NFSERR_DEADLOCK = 10045, /* v4 */
115 NFSERR_FILE_OPEN = 10046, /* v4 */
116 NFSERR_ADMIN_REVOKED = 10047, /* v4 */
117 NFSERR_CB_PATH_DOWN = 10048, /* v4 */
118};
119
120/* NFSv2 file types - beware, these are not the same in NFSv3 */
121
122enum nfs_ftype {
123 NFNON = 0,
124 NFREG = 1,
125 NFDIR = 2,
126 NFBLK = 3,
127 NFCHR = 4,
128 NFLNK = 5,
129 NFSOCK = 6,
130 NFBAD = 7,
131 NFFIFO = 8
132};
133
134#endif /* _UAPI_LINUX_NFS_H */
135