xref: /linux/fs/nfsd/xdr3.h (revision ca55b2fef3a9373fcfc30f82fd26bc7fccbda732)
1 /*
2  * XDR types for NFSv3 in nfsd.
3  *
4  * Copyright (C) 1996-1998, Olaf Kirch <okir@monad.swb.de>
5  */
6 
7 #ifndef _LINUX_NFSD_XDR3_H
8 #define _LINUX_NFSD_XDR3_H
9 
10 #include "xdr.h"
11 
12 struct nfsd3_sattrargs {
13 	struct svc_fh		fh;
14 	struct iattr		attrs;
15 	int			check_guard;
16 	time_t			guardtime;
17 };
18 
19 struct nfsd3_diropargs {
20 	struct svc_fh		fh;
21 	char *			name;
22 	unsigned int		len;
23 };
24 
25 struct nfsd3_accessargs {
26 	struct svc_fh		fh;
27 	unsigned int		access;
28 };
29 
30 struct nfsd3_readargs {
31 	struct svc_fh		fh;
32 	__u64			offset;
33 	__u32			count;
34 	int			vlen;
35 };
36 
37 struct nfsd3_writeargs {
38 	svc_fh			fh;
39 	__u64			offset;
40 	__u32			count;
41 	int			stable;
42 	__u32			len;
43 	int			vlen;
44 };
45 
46 struct nfsd3_createargs {
47 	struct svc_fh		fh;
48 	char *			name;
49 	unsigned int		len;
50 	int			createmode;
51 	struct iattr		attrs;
52 	__be32 *		verf;
53 };
54 
55 struct nfsd3_mknodargs {
56 	struct svc_fh		fh;
57 	char *			name;
58 	unsigned int		len;
59 	__u32			ftype;
60 	__u32			major, minor;
61 	struct iattr		attrs;
62 };
63 
64 struct nfsd3_renameargs {
65 	struct svc_fh		ffh;
66 	char *			fname;
67 	unsigned int		flen;
68 	struct svc_fh		tfh;
69 	char *			tname;
70 	unsigned int		tlen;
71 };
72 
73 struct nfsd3_readlinkargs {
74 	struct svc_fh		fh;
75 	char *			buffer;
76 };
77 
78 struct nfsd3_linkargs {
79 	struct svc_fh		ffh;
80 	struct svc_fh		tfh;
81 	char *			tname;
82 	unsigned int		tlen;
83 };
84 
85 struct nfsd3_symlinkargs {
86 	struct svc_fh		ffh;
87 	char *			fname;
88 	unsigned int		flen;
89 	char *			tname;
90 	unsigned int		tlen;
91 	struct iattr		attrs;
92 };
93 
94 struct nfsd3_readdirargs {
95 	struct svc_fh		fh;
96 	__u64			cookie;
97 	__u32			dircount;
98 	__u32			count;
99 	__be32 *		verf;
100 	__be32 *		buffer;
101 };
102 
103 struct nfsd3_commitargs {
104 	struct svc_fh		fh;
105 	__u64			offset;
106 	__u32			count;
107 };
108 
109 struct nfsd3_getaclargs {
110 	struct svc_fh		fh;
111 	int			mask;
112 };
113 
114 struct posix_acl;
115 struct nfsd3_setaclargs {
116 	struct svc_fh		fh;
117 	int			mask;
118 	struct posix_acl	*acl_access;
119 	struct posix_acl	*acl_default;
120 };
121 
122 struct nfsd3_attrstat {
123 	__be32			status;
124 	struct svc_fh		fh;
125 	struct kstat            stat;
126 };
127 
128 /* LOOKUP, CREATE, MKDIR, SYMLINK, MKNOD */
129 struct nfsd3_diropres  {
130 	__be32			status;
131 	struct svc_fh		dirfh;
132 	struct svc_fh		fh;
133 };
134 
135 struct nfsd3_accessres {
136 	__be32			status;
137 	struct svc_fh		fh;
138 	__u32			access;
139 	struct kstat		stat;
140 };
141 
142 struct nfsd3_readlinkres {
143 	__be32			status;
144 	struct svc_fh		fh;
145 	__u32			len;
146 };
147 
148 struct nfsd3_readres {
149 	__be32			status;
150 	struct svc_fh		fh;
151 	unsigned long		count;
152 	int			eof;
153 };
154 
155 struct nfsd3_writeres {
156 	__be32			status;
157 	struct svc_fh		fh;
158 	unsigned long		count;
159 	int			committed;
160 };
161 
162 struct nfsd3_renameres {
163 	__be32			status;
164 	struct svc_fh		ffh;
165 	struct svc_fh		tfh;
166 };
167 
168 struct nfsd3_linkres {
169 	__be32			status;
170 	struct svc_fh		tfh;
171 	struct svc_fh		fh;
172 };
173 
174 struct nfsd3_readdirres {
175 	__be32			status;
176 	struct svc_fh		fh;
177 	/* Just to save kmalloc on every readdirplus entry (svc_fh is a
178 	 * little large for the stack): */
179 	struct svc_fh		scratch;
180 	int			count;
181 	__be32			verf[2];
182 
183 	struct readdir_cd	common;
184 	__be32 *		buffer;
185 	int			buflen;
186 	__be32 *		offset;
187 	__be32 *		offset1;
188 	struct svc_rqst *	rqstp;
189 
190 };
191 
192 struct nfsd3_fsstatres {
193 	__be32			status;
194 	struct kstatfs		stats;
195 	__u32			invarsec;
196 };
197 
198 struct nfsd3_fsinfores {
199 	__be32			status;
200 	__u32			f_rtmax;
201 	__u32			f_rtpref;
202 	__u32			f_rtmult;
203 	__u32			f_wtmax;
204 	__u32			f_wtpref;
205 	__u32			f_wtmult;
206 	__u32			f_dtpref;
207 	__u64			f_maxfilesize;
208 	__u32			f_properties;
209 };
210 
211 struct nfsd3_pathconfres {
212 	__be32			status;
213 	__u32			p_link_max;
214 	__u32			p_name_max;
215 	__u32			p_no_trunc;
216 	__u32			p_chown_restricted;
217 	__u32			p_case_insensitive;
218 	__u32			p_case_preserving;
219 };
220 
221 struct nfsd3_commitres {
222 	__be32			status;
223 	struct svc_fh		fh;
224 };
225 
226 struct nfsd3_getaclres {
227 	__be32			status;
228 	struct svc_fh		fh;
229 	int			mask;
230 	struct posix_acl	*acl_access;
231 	struct posix_acl	*acl_default;
232 	struct kstat		stat;
233 };
234 
235 /* dummy type for release */
236 struct nfsd3_fhandle_pair {
237 	__u32			dummy;
238 	struct svc_fh		fh1;
239 	struct svc_fh		fh2;
240 };
241 
242 /*
243  * Storage requirements for XDR arguments and results.
244  */
245 union nfsd3_xdrstore {
246 	struct nfsd3_sattrargs		sattrargs;
247 	struct nfsd3_diropargs		diropargs;
248 	struct nfsd3_readargs		readargs;
249 	struct nfsd3_writeargs		writeargs;
250 	struct nfsd3_createargs		createargs;
251 	struct nfsd3_renameargs		renameargs;
252 	struct nfsd3_linkargs		linkargs;
253 	struct nfsd3_symlinkargs	symlinkargs;
254 	struct nfsd3_readdirargs	readdirargs;
255 	struct nfsd3_diropres 		diropres;
256 	struct nfsd3_accessres		accessres;
257 	struct nfsd3_readlinkres	readlinkres;
258 	struct nfsd3_readres		readres;
259 	struct nfsd3_writeres		writeres;
260 	struct nfsd3_renameres		renameres;
261 	struct nfsd3_linkres		linkres;
262 	struct nfsd3_readdirres		readdirres;
263 	struct nfsd3_fsstatres		fsstatres;
264 	struct nfsd3_fsinfores		fsinfores;
265 	struct nfsd3_pathconfres	pathconfres;
266 	struct nfsd3_commitres		commitres;
267 	struct nfsd3_getaclres		getaclres;
268 };
269 
270 #define NFS3_SVC_XDRSIZE		sizeof(union nfsd3_xdrstore)
271 
272 int nfs3svc_decode_fhandle(struct svc_rqst *, __be32 *, struct nfsd_fhandle *);
273 int nfs3svc_decode_sattrargs(struct svc_rqst *, __be32 *,
274 				struct nfsd3_sattrargs *);
275 int nfs3svc_decode_diropargs(struct svc_rqst *, __be32 *,
276 				struct nfsd3_diropargs *);
277 int nfs3svc_decode_accessargs(struct svc_rqst *, __be32 *,
278 				struct nfsd3_accessargs *);
279 int nfs3svc_decode_readargs(struct svc_rqst *, __be32 *,
280 				struct nfsd3_readargs *);
281 int nfs3svc_decode_writeargs(struct svc_rqst *, __be32 *,
282 				struct nfsd3_writeargs *);
283 int nfs3svc_decode_createargs(struct svc_rqst *, __be32 *,
284 				struct nfsd3_createargs *);
285 int nfs3svc_decode_mkdirargs(struct svc_rqst *, __be32 *,
286 				struct nfsd3_createargs *);
287 int nfs3svc_decode_mknodargs(struct svc_rqst *, __be32 *,
288 				struct nfsd3_mknodargs *);
289 int nfs3svc_decode_renameargs(struct svc_rqst *, __be32 *,
290 				struct nfsd3_renameargs *);
291 int nfs3svc_decode_readlinkargs(struct svc_rqst *, __be32 *,
292 				struct nfsd3_readlinkargs *);
293 int nfs3svc_decode_linkargs(struct svc_rqst *, __be32 *,
294 				struct nfsd3_linkargs *);
295 int nfs3svc_decode_symlinkargs(struct svc_rqst *, __be32 *,
296 				struct nfsd3_symlinkargs *);
297 int nfs3svc_decode_readdirargs(struct svc_rqst *, __be32 *,
298 				struct nfsd3_readdirargs *);
299 int nfs3svc_decode_readdirplusargs(struct svc_rqst *, __be32 *,
300 				struct nfsd3_readdirargs *);
301 int nfs3svc_decode_commitargs(struct svc_rqst *, __be32 *,
302 				struct nfsd3_commitargs *);
303 int nfs3svc_encode_voidres(struct svc_rqst *, __be32 *, void *);
304 int nfs3svc_encode_attrstat(struct svc_rqst *, __be32 *,
305 				struct nfsd3_attrstat *);
306 int nfs3svc_encode_wccstat(struct svc_rqst *, __be32 *,
307 				struct nfsd3_attrstat *);
308 int nfs3svc_encode_diropres(struct svc_rqst *, __be32 *,
309 				struct nfsd3_diropres *);
310 int nfs3svc_encode_accessres(struct svc_rqst *, __be32 *,
311 				struct nfsd3_accessres *);
312 int nfs3svc_encode_readlinkres(struct svc_rqst *, __be32 *,
313 				struct nfsd3_readlinkres *);
314 int nfs3svc_encode_readres(struct svc_rqst *, __be32 *, struct nfsd3_readres *);
315 int nfs3svc_encode_writeres(struct svc_rqst *, __be32 *, struct nfsd3_writeres *);
316 int nfs3svc_encode_createres(struct svc_rqst *, __be32 *,
317 				struct nfsd3_diropres *);
318 int nfs3svc_encode_renameres(struct svc_rqst *, __be32 *,
319 				struct nfsd3_renameres *);
320 int nfs3svc_encode_linkres(struct svc_rqst *, __be32 *,
321 				struct nfsd3_linkres *);
322 int nfs3svc_encode_readdirres(struct svc_rqst *, __be32 *,
323 				struct nfsd3_readdirres *);
324 int nfs3svc_encode_fsstatres(struct svc_rqst *, __be32 *,
325 				struct nfsd3_fsstatres *);
326 int nfs3svc_encode_fsinfores(struct svc_rqst *, __be32 *,
327 				struct nfsd3_fsinfores *);
328 int nfs3svc_encode_pathconfres(struct svc_rqst *, __be32 *,
329 				struct nfsd3_pathconfres *);
330 int nfs3svc_encode_commitres(struct svc_rqst *, __be32 *,
331 				struct nfsd3_commitres *);
332 
333 int nfs3svc_release_fhandle(struct svc_rqst *, __be32 *,
334 				struct nfsd3_attrstat *);
335 int nfs3svc_release_fhandle2(struct svc_rqst *, __be32 *,
336 				struct nfsd3_fhandle_pair *);
337 int nfs3svc_encode_entry(void *, const char *name,
338 				int namlen, loff_t offset, u64 ino,
339 				unsigned int);
340 int nfs3svc_encode_entry_plus(void *, const char *name,
341 				int namlen, loff_t offset, u64 ino,
342 				unsigned int);
343 /* Helper functions for NFSv3 ACL code */
344 __be32 *nfs3svc_encode_post_op_attr(struct svc_rqst *rqstp, __be32 *p,
345 				struct svc_fh *fhp);
346 __be32 *nfs3svc_decode_fh(__be32 *p, struct svc_fh *fhp);
347 
348 
349 #endif /* _LINUX_NFSD_XDR3_H */
350