Root/fs/nfsd/xdr.h

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

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