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xdr.h
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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 
10 struct nfsd_fhandle {
11  struct svc_fh fh;
12 };
13 
14 struct nfsd_sattrargs {
15  struct svc_fh fh;
16  struct iattr attrs;
17 };
18 
19 struct nfsd_diropargs {
20  struct svc_fh fh;
21  char * name;
22  unsigned int len;
23 };
24 
25 struct nfsd_readargs {
26  struct svc_fh fh;
27  __u32 offset;
28  __u32 count;
29  int vlen;
30 };
31 
32 struct nfsd_writeargs {
33  svc_fh fh;
34  __u32 offset;
35  int len;
36  int vlen;
37 };
38 
39 struct nfsd_createargs {
40  struct svc_fh fh;
41  char * name;
42  unsigned int len;
43  struct iattr attrs;
44 };
45 
46 struct 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 
55 struct nfsd_readlinkargs {
56  struct svc_fh fh;
57  char * buffer;
58 };
59 
60 struct nfsd_linkargs {
61  struct svc_fh ffh;
62  struct svc_fh tfh;
63  char * tname;
64  unsigned int tlen;
65 };
66 
67 struct 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 
76 struct nfsd_readdirargs {
77  struct svc_fh fh;
78  __u32 cookie;
79  __u32 count;
80  __be32 * buffer;
81 };
82 
83 struct nfsd_attrstat {
84  struct svc_fh fh;
85  struct kstat stat;
86 };
87 
88 struct nfsd_diropres {
89  struct svc_fh fh;
90  struct kstat stat;
91 };
92 
93 struct nfsd_readlinkres {
94  int len;
95 };
96 
97 struct nfsd_readres {
98  struct svc_fh fh;
99  unsigned long count;
100  struct kstat stat;
101 };
102 
103 struct nfsd_readdirres {
104  int count;
105 
106  struct readdir_cd common;
107  __be32 * buffer;
108  int buflen;
109  __be32 * offset;
110 };
111 
112 struct nfsd_statfsres {
113  struct kstatfs stats;
114 };
115 
116 /*
117  * Storage requirements for XDR arguments and results.
118  */
119 union 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 
134 int nfssvc_decode_void(struct svc_rqst *, __be32 *, void *);
135 int nfssvc_decode_fhandle(struct svc_rqst *, __be32 *, struct nfsd_fhandle *);
136 int nfssvc_decode_sattrargs(struct svc_rqst *, __be32 *,
137  struct nfsd_sattrargs *);
138 int nfssvc_decode_diropargs(struct svc_rqst *, __be32 *,
139  struct nfsd_diropargs *);
140 int nfssvc_decode_readargs(struct svc_rqst *, __be32 *,
141  struct nfsd_readargs *);
142 int nfssvc_decode_writeargs(struct svc_rqst *, __be32 *,
143  struct nfsd_writeargs *);
144 int nfssvc_decode_createargs(struct svc_rqst *, __be32 *,
145  struct nfsd_createargs *);
146 int nfssvc_decode_renameargs(struct svc_rqst *, __be32 *,
147  struct nfsd_renameargs *);
148 int nfssvc_decode_readlinkargs(struct svc_rqst *, __be32 *,
149  struct nfsd_readlinkargs *);
150 int nfssvc_decode_linkargs(struct svc_rqst *, __be32 *,
151  struct nfsd_linkargs *);
152 int nfssvc_decode_symlinkargs(struct svc_rqst *, __be32 *,
153  struct nfsd_symlinkargs *);
154 int nfssvc_decode_readdirargs(struct svc_rqst *, __be32 *,
155  struct nfsd_readdirargs *);
156 int nfssvc_encode_void(struct svc_rqst *, __be32 *, void *);
157 int nfssvc_encode_attrstat(struct svc_rqst *, __be32 *, struct nfsd_attrstat *);
158 int nfssvc_encode_diropres(struct svc_rqst *, __be32 *, struct nfsd_diropres *);
159 int nfssvc_encode_readlinkres(struct svc_rqst *, __be32 *, struct nfsd_readlinkres *);
160 int nfssvc_encode_readres(struct svc_rqst *, __be32 *, struct nfsd_readres *);
161 int nfssvc_encode_statfsres(struct svc_rqst *, __be32 *, struct nfsd_statfsres *);
162 int nfssvc_encode_readdirres(struct svc_rqst *, __be32 *, struct nfsd_readdirres *);
163 
164 int nfssvc_encode_entry(void *, const char *name,
165  int namlen, loff_t offset, u64 ino, unsigned int);
166 
167 int 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 */
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