1 /*
2 * linux/include/linux/nfsd/xdr.h
3 *
4 * XDR types for nfsd. This is mainly a typing exercise.
5 */
6
7 #ifndef LINUX_NFSD_H
8 #define LINUX_NFSD_H
9
10 #include <linux/fs.h>
11 #include <linux/vfs.h>
12 #include <linux/nfs.h>
13
14 struct nfsd_fhandle {
15 struct svc_fh fh;
16 };
17
18 struct nfsd_sattrargs {
19 struct svc_fh fh;
20 struct iattr attrs;
21 };
22
23 struct nfsd_diropargs {
24 struct svc_fh fh;
25 char * name;
26 unsigned int len;
27 };
28
29 struct nfsd_readargs {
30 struct svc_fh fh;
31 __u32 offset;
32 __u32 count;
33 int vlen;
34 };
35
36 struct nfsd_writeargs {
37 svc_fh fh;
38 __u32 offset;
39 int len;
40 int vlen;
41 };
42
43 struct nfsd_createargs {
44 struct svc_fh fh;
45 char * name;
46 unsigned int len;
47 struct iattr attrs;
48 };
49
50 struct nfsd_renameargs {
51 struct svc_fh ffh;
52 char * fname;
53 unsigned int flen;
54 struct svc_fh tfh;
55 char * tname;
56 unsigned int tlen;
57 };
58
59 struct nfsd_readlinkargs {
60 struct svc_fh fh;
61 char * buffer;
62 };
63
64 struct nfsd_linkargs {
65 struct svc_fh ffh;
66 struct svc_fh tfh;
67 char * tname;
68 unsigned int tlen;
69 };
70
71 struct nfsd_symlinkargs {
72 struct svc_fh ffh;
73 char * fname;
74 unsigned int flen;
75 char * tname;
76 unsigned int tlen;
77 struct iattr attrs;
78 };
79
80 struct nfsd_readdirargs {
81 struct svc_fh fh;
82 __u32 cookie;
83 __u32 count;
84 __be32 * buffer;
85 };
86
87 struct nfsd_attrstat {
88 struct svc_fh fh;
89 struct kstat stat;
90 };
91
92 struct nfsd_diropres {
93 struct svc_fh fh;
94 struct kstat stat;
95 };
96
97 struct nfsd_readlinkres {
98 int len;
99 };
100
101 struct nfsd_readres {
102 struct svc_fh fh;
103 unsigned long count;
104 struct kstat stat;
105 };
106
107 struct nfsd_readdirres {
108 int count;
109
110 struct readdir_cd common;
111 __be32 * buffer;
112 int buflen;
113 __be32 * offset;
114 };
115
116 struct nfsd_statfsres {
117 struct kstatfs stats;
118 };
119
120 /*
121 * Storage requirements for XDR arguments and results.
122 */
123 union nfsd_xdrstore {
124 struct nfsd_sattrargs sattr;
125 struct nfsd_diropargs dirop;
126 struct nfsd_readargs read;
127 struct nfsd_writeargs write;
128 struct nfsd_createargs create;
129 struct nfsd_renameargs rename;
130 struct nfsd_linkargs link;
131 struct nfsd_symlinkargs symlink;
132 struct nfsd_readdirargs readdir;
133 };
134
135 #define NFS2_SVC_XDRSIZE sizeof(union nfsd_xdrstore)
136
137
138 int nfssvc_decode_void(struct svc_rqst *, __be32 *, void *);
139 int nfssvc_decode_fhandle(struct svc_rqst *, __be32 *, struct nfsd_fhandle *);
140 int nfssvc_decode_sattrargs(struct svc_rqst *, __be32 *,
141 struct nfsd_sattrargs *);
142 int nfssvc_decode_diropargs(struct svc_rqst *, __be32 *,
143 struct nfsd_diropargs *);
144 int nfssvc_decode_readargs(struct svc_rqst *, __be32 *,
145 struct nfsd_readargs *);
146 int nfssvc_decode_writeargs(struct svc_rqst *, __be32 *,
147 struct nfsd_writeargs *);
148 int nfssvc_decode_createargs(struct svc_rqst *, __be32 *,
149 struct nfsd_createargs *);
150 int nfssvc_decode_renameargs(struct svc_rqst *, __be32 *,
151 struct nfsd_renameargs *);
152 int nfssvc_decode_readlinkargs(struct svc_rqst *, __be32 *,
153 struct nfsd_readlinkargs *);
154 int nfssvc_decode_linkargs(struct svc_rqst *, __be32 *,
155 struct nfsd_linkargs *);
156 int nfssvc_decode_symlinkargs(struct svc_rqst *, __be32 *,
157 struct nfsd_symlinkargs *);
158 int nfssvc_decode_readdirargs(struct svc_rqst *, __be32 *,
159 struct nfsd_readdirargs *);
160 int nfssvc_encode_void(struct svc_rqst *, __be32 *, void *);
161 int nfssvc_encode_attrstat(struct svc_rqst *, __be32 *, struct nfsd_attrstat *);
162 int nfssvc_encode_diropres(struct svc_rqst *, __be32 *, struct nfsd_diropres *);
163 int nfssvc_encode_readlinkres(struct svc_rqst *, __be32 *, struct nfsd_readlinkres *);
164 int nfssvc_encode_readres(struct svc_rqst *, __be32 *, struct nfsd_readres *);
165 int nfssvc_encode_statfsres(struct svc_rqst *, __be32 *, struct nfsd_statfsres *);
166 int nfssvc_encode_readdirres(struct svc_rqst *, __be32 *, struct nfsd_readdirres *);
167
168 int nfssvc_encode_entry(void *, const char *name,
169 int namlen, loff_t offset, u64 ino, unsigned int);
170
171 int nfssvc_release_fhandle(struct svc_rqst *, __be32 *, struct nfsd_fhandle *);
172
173 /* Helper functions for NFSv2 ACL code */
174 __be32 *nfs2svc_encode_fattr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp);
175 __be32 *nfs2svc_decode_fh(__be32 *p, struct svc_fh *fhp);
176
177 #endif /* LINUX_NFSD_H */
178
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