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 */
174