1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 /*
3  * NFSv3 protocol definitions
4  */
5 #ifndef _UAPI_LINUX_NFS3_H
6 #define _UAPI_LINUX_NFS3_H
7 
8 #define NFS3_PORT		2049
9 #define NFS3_MAXDATA		32768
10 #define NFS3_MAXPATHLEN		PATH_MAX
11 #define NFS3_MAXNAMLEN		NAME_MAX
12 #define NFS3_MAXGROUPS		16
13 #define NFS3_FHSIZE		64
14 #define NFS3_COOKIESIZE		4
15 #define NFS3_CREATEVERFSIZE	8
16 #define NFS3_COOKIEVERFSIZE	8
17 #define NFS3_WRITEVERFSIZE	8
18 #define NFS3_FIFO_DEV		(-1)
19 #define NFS3MODE_FMT		0170000
20 #define NFS3MODE_DIR		0040000
21 #define NFS3MODE_CHR		0020000
22 #define NFS3MODE_BLK		0060000
23 #define NFS3MODE_REG		0100000
24 #define NFS3MODE_LNK		0120000
25 #define NFS3MODE_SOCK		0140000
26 #define NFS3MODE_FIFO		0010000
27 
28 /* Flags for access() call */
29 #define NFS3_ACCESS_READ	0x0001
30 #define NFS3_ACCESS_LOOKUP	0x0002
31 #define NFS3_ACCESS_MODIFY	0x0004
32 #define NFS3_ACCESS_EXTEND	0x0008
33 #define NFS3_ACCESS_DELETE	0x0010
34 #define NFS3_ACCESS_EXECUTE	0x0020
35 #define NFS3_ACCESS_FULL	0x003f
36 
37 /* Flags for create mode */
38 enum nfs3_createmode {
39 	NFS3_CREATE_UNCHECKED = 0,
40 	NFS3_CREATE_GUARDED = 1,
41 	NFS3_CREATE_EXCLUSIVE = 2
42 };
43 
44 /* NFSv3 file system properties */
45 #define NFS3_FSF_LINK		0x0001
46 #define NFS3_FSF_SYMLINK	0x0002
47 #define NFS3_FSF_HOMOGENEOUS	0x0008
48 #define NFS3_FSF_CANSETTIME	0x0010
49 /* Some shorthands. See fs/nfsd/nfs3proc.c */
50 #define NFS3_FSF_DEFAULT	0x001B
51 #define NFS3_FSF_BILLYBOY	0x0018
52 #define NFS3_FSF_READONLY	0x0008
53 
54 enum nfs3_ftype {
55 	NF3NON  = 0,
56 	NF3REG  = 1,
57 	NF3DIR  = 2,
58 	NF3BLK  = 3,
59 	NF3CHR  = 4,
60 	NF3LNK  = 5,
61 	NF3SOCK = 6,
62 	NF3FIFO = 7,	/* changed from NFSv2 (was 8) */
63 	NF3BAD  = 8
64 };
65 
66 enum nfs3_time_how {
67 	DONT_CHANGE		= 0,
68 	SET_TO_SERVER_TIME	= 1,
69 	SET_TO_CLIENT_TIME	= 2,
70 };
71 
72 struct nfs3_fh {
73 	unsigned short size;
74 	unsigned char  data[NFS3_FHSIZE];
75 };
76 
77 #define NFS3_VERSION		3
78 #define NFS3PROC_NULL		0
79 #define NFS3PROC_GETATTR	1
80 #define NFS3PROC_SETATTR	2
81 #define NFS3PROC_LOOKUP		3
82 #define NFS3PROC_ACCESS		4
83 #define NFS3PROC_READLINK	5
84 #define NFS3PROC_READ		6
85 #define NFS3PROC_WRITE		7
86 #define NFS3PROC_CREATE		8
87 #define NFS3PROC_MKDIR		9
88 #define NFS3PROC_SYMLINK	10
89 #define NFS3PROC_MKNOD		11
90 #define NFS3PROC_REMOVE		12
91 #define NFS3PROC_RMDIR		13
92 #define NFS3PROC_RENAME		14
93 #define NFS3PROC_LINK		15
94 #define NFS3PROC_READDIR	16
95 #define NFS3PROC_READDIRPLUS	17
96 #define NFS3PROC_FSSTAT		18
97 #define NFS3PROC_FSINFO		19
98 #define NFS3PROC_PATHCONF	20
99 #define NFS3PROC_COMMIT		21
100 
101 #define NFS_MNT3_VERSION	3
102 
103 
104 #endif /* _UAPI_LINUX_NFS3_H */
105