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