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