1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 /*
3 * NFS protocol definitions
4 *
5 * This file contains constants for Version 2 of the protocol.
6 */
7 #ifndef _LINUX_NFS2_H
8 #define _LINUX_NFS2_H
9
10 #define NFS2_PORT 2049
11 #define NFS2_MAXDATA 8192
12 #define NFS2_MAXPATHLEN 1024
13 #define NFS2_MAXNAMLEN 255
14 #define NFS2_MAXGROUPS 16
15 #define NFS2_FHSIZE 32
16 #define NFS2_COOKIESIZE 4
17 #define NFS2_FIFO_DEV (-1)
18 #define NFS2MODE_FMT 0170000
19 #define NFS2MODE_DIR 0040000
20 #define NFS2MODE_CHR 0020000
21 #define NFS2MODE_BLK 0060000
22 #define NFS2MODE_REG 0100000
23 #define NFS2MODE_LNK 0120000
24 #define NFS2MODE_SOCK 0140000
25 #define NFS2MODE_FIFO 0010000
26
27
28 /* NFSv2 file types - beware, these are not the same in NFSv3 */
29 enum nfs2_ftype {
30 NF2NON = 0,
31 NF2REG = 1,
32 NF2DIR = 2,
33 NF2BLK = 3,
34 NF2CHR = 4,
35 NF2LNK = 5,
36 NF2SOCK = 6,
37 NF2BAD = 7,
38 NF2FIFO = 8
39 };
40
41 struct nfs2_fh {
42 char data[NFS2_FHSIZE];
43 };
44
45 /*
46 * Procedure numbers for NFSv2
47 */
48 #define NFS2_VERSION 2
49 #define NFSPROC_NULL 0
50 #define NFSPROC_GETATTR 1
51 #define NFSPROC_SETATTR 2
52 #define NFSPROC_ROOT 3
53 #define NFSPROC_LOOKUP 4
54 #define NFSPROC_READLINK 5
55 #define NFSPROC_READ 6
56 #define NFSPROC_WRITECACHE 7
57 #define NFSPROC_WRITE 8
58 #define NFSPROC_CREATE 9
59 #define NFSPROC_REMOVE 10
60 #define NFSPROC_RENAME 11
61 #define NFSPROC_LINK 12
62 #define NFSPROC_SYMLINK 13
63 #define NFSPROC_MKDIR 14
64 #define NFSPROC_RMDIR 15
65 #define NFSPROC_READDIR 16
66 #define NFSPROC_STATFS 17
67
68 #endif /* _LINUX_NFS2_H */
69
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