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 _LINUX_NFS_H
8 #define _LINUX_NFS_H
9
10 #define NFS_PROGRAM 100003
11 #define NFS_PORT 2049
12 #define NFS_MAXDATA 8192
13 #define NFS_MAXPATHLEN 1024
14 #define NFS_MAXNAMLEN 255
15 #define NFS_MAXGROUPS 16
16 #define NFS_FHSIZE 32
17 #define NFS_COOKIESIZE 4
18 #define NFS_FIFO_DEV (-1)
19 #define NFSMODE_FMT 0170000
20 #define NFSMODE_DIR 0040000
21 #define NFSMODE_CHR 0020000
22 #define NFSMODE_BLK 0060000
23 #define NFSMODE_REG 0100000
24 #define NFSMODE_LNK 0120000
25 #define NFSMODE_SOCK 0140000
26 #define NFSMODE_FIFO 0010000
27
28 #define NFS_MNT_PROGRAM 100005
29 #define NFS_MNT_VERSION 1
30 #define NFS_MNT3_VERSION 3
31
32 #define NFS_PIPE_DIRNAME "nfs"
33
34 /*
35 * NFS stats. The good thing with these values is that NFSv3 errors are
36 * a superset of NFSv2 errors (with the exception of NFSERR_WFLUSH which
37 * no-one uses anyway), so we can happily mix code as long as we make sure
38 * no NFSv3 errors are returned to NFSv2 clients.
39 * Error codes that have a `--' in the v2 column are not part of the
40 * standard, but seem to be widely used nevertheless.
41 */
42 enum nfs_stat {
43 NFS_OK = 0, /* v2 v3 v4 */
44 NFSERR_PERM = 1, /* v2 v3 v4 */
45 NFSERR_NOENT = 2, /* v2 v3 v4 */
46 NFSERR_IO = 5, /* v2 v3 v4 */
47 NFSERR_NXIO = 6, /* v2 v3 v4 */
48 NFSERR_EAGAIN = 11, /* v2 v3 */
49 NFSERR_ACCES = 13, /* v2 v3 v4 */
50 NFSERR_EXIST = 17, /* v2 v3 v4 */
51 NFSERR_XDEV = 18, /* v3 v4 */
52 NFSERR_NODEV = 19, /* v2 v3 v4 */
53 NFSERR_NOTDIR = 20, /* v2 v3 v4 */
54 NFSERR_ISDIR = 21, /* v2 v3 v4 */
55 NFSERR_INVAL = 22, /* v2 v3 v4 */
56 NFSERR_FBIG = 27, /* v2 v3 v4 */
57 NFSERR_NOSPC = 28, /* v2 v3 v4 */
58 NFSERR_ROFS = 30, /* v2 v3 v4 */
59 NFSERR_MLINK = 31, /* v3 v4 */
60 NFSERR_OPNOTSUPP = 45, /* v2 v3 */
61 NFSERR_NAMETOOLONG = 63, /* v2 v3 v4 */
62 NFSERR_NOTEMPTY = 66, /* v2 v3 v4 */
63 NFSERR_DQUOT = 69, /* v2 v3 v4 */
64 NFSERR_STALE = 70, /* v2 v3 v4 */
65 NFSERR_REMOTE = 71, /* v2 v3 */
66 NFSERR_WFLUSH = 99, /* v2 */
67 NFSERR_BADHANDLE = 10001, /* v3 v4 */
68 NFSERR_NOT_SYNC = 10002, /* v3 */
69 NFSERR_BAD_COOKIE = 10003, /* v3 v4 */
70 NFSERR_NOTSUPP = 10004, /* v3 v4 */
71 NFSERR_TOOSMALL = 10005, /* v3 v4 */
72 NFSERR_SERVERFAULT = 10006, /* v3 v4 */
73 NFSERR_BADTYPE = 10007, /* v3 v4 */
74 NFSERR_JUKEBOX = 10008, /* v3 v4 */
75 NFSERR_SAME = 10009, /* v4 */
76 NFSERR_DENIED = 10010, /* v4 */
77 NFSERR_EXPIRED = 10011, /* v4 */
78 NFSERR_LOCKED = 10012, /* v4 */
79 NFSERR_GRACE = 10013, /* v4 */
80 NFSERR_FHEXPIRED = 10014, /* v4 */
81 NFSERR_SHARE_DENIED = 10015, /* v4 */
82 NFSERR_WRONGSEC = 10016, /* v4 */
83 NFSERR_CLID_INUSE = 10017, /* v4 */
84 NFSERR_RESOURCE = 10018, /* v4 */
85 NFSERR_MOVED = 10019, /* v4 */
86 NFSERR_NOFILEHANDLE = 10020, /* v4 */
87 NFSERR_MINOR_VERS_MISMATCH = 10021, /* v4 */
88 NFSERR_STALE_CLIENTID = 10022, /* v4 */
89 NFSERR_STALE_STATEID = 10023, /* v4 */
90 NFSERR_OLD_STATEID = 10024, /* v4 */
91 NFSERR_BAD_STATEID = 10025, /* v4 */
92 NFSERR_BAD_SEQID = 10026, /* v4 */
93 NFSERR_NOT_SAME = 10027, /* v4 */
94 NFSERR_LOCK_RANGE = 10028, /* v4 */
95 NFSERR_SYMLINK = 10029, /* v4 */
96 NFSERR_RESTOREFH = 10030, /* v4 */
97 NFSERR_LEASE_MOVED = 10031, /* v4 */
98 NFSERR_ATTRNOTSUPP = 10032, /* v4 */
99 NFSERR_NO_GRACE = 10033, /* v4 */
100 NFSERR_RECLAIM_BAD = 10034, /* v4 */
101 NFSERR_RECLAIM_CONFLICT = 10035,/* v4 */
102 NFSERR_BAD_XDR = 10036, /* v4 */
103 NFSERR_LOCKS_HELD = 10037, /* v4 */
104 NFSERR_OPENMODE = 10038, /* v4 */
105 NFSERR_BADOWNER = 10039, /* v4 */
106 NFSERR_BADCHAR = 10040, /* v4 */
107 NFSERR_BADNAME = 10041, /* v4 */
108 NFSERR_BAD_RANGE = 10042, /* v4 */
109 NFSERR_LOCK_NOTSUPP = 10043, /* v4 */
110 NFSERR_OP_ILLEGAL = 10044, /* v4 */
111 NFSERR_DEADLOCK = 10045, /* v4 */
112 NFSERR_FILE_OPEN = 10046, /* v4 */
113 NFSERR_ADMIN_REVOKED = 10047, /* v4 */
114 NFSERR_CB_PATH_DOWN = 10048, /* v4 */
115 };
116
117 /* NFSv2 file types - beware, these are not the same in NFSv3 */
118
119 enum nfs_ftype {
120 NFNON = 0,
121 NFREG = 1,
122 NFDIR = 2,
123 NFBLK = 3,
124 NFCHR = 4,
125 NFLNK = 5,
126 NFSOCK = 6,
127 NFBAD = 7,
128 NFFIFO = 8
129 };
130
131 #ifdef __KERNEL__
132 #include <linux/sunrpc/msg_prot.h>
133 #include <linux/string.h>
134
135 /*
136 * This is the kernel NFS client file handle representation
137 */
138 #define NFS_MAXFHSIZE 128
139 struct nfs_fh {
140 unsigned short size;
141 unsigned char data[NFS_MAXFHSIZE];
142 };
143
144 /*
145 * Returns a zero iff the size and data fields match.
146 * Checks only "size" bytes in the data field.
147 */
nfs_compare_fh(const struct nfs_fh * a,const struct nfs_fh * b)148 static inline int nfs_compare_fh(const struct nfs_fh *a, const struct nfs_fh *b)
149 {
150 return a->size != b->size || memcmp(a->data, b->data, a->size) != 0;
151 }
152
nfs_copy_fh(struct nfs_fh * target,const struct nfs_fh * source)153 static inline void nfs_copy_fh(struct nfs_fh *target, const struct nfs_fh *source)
154 {
155 target->size = source->size;
156 memcpy(target->data, source->data, source->size);
157 }
158
159
160 /*
161 * This is really a general kernel constant, but since nothing like
162 * this is defined in the kernel headers, I have to do it here.
163 */
164 #define NFS_OFFSET_MAX ((__s64)((~(__u64)0) >> 1))
165
166
167 enum nfs3_stable_how {
168 NFS_UNSTABLE = 0,
169 NFS_DATA_SYNC = 1,
170 NFS_FILE_SYNC = 2
171 };
172 #endif /* __KERNEL__ */
173 #endif /* _LINUX_NFS_H */
174