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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * XDR types for NFSv3 in nfsd.
4 *
5 * Copyright (C) 1996-1998, Olaf Kirch <okir@monad.swb.de>
6 */
7
8#ifndef _LINUX_NFSD_XDR3_H
9#define _LINUX_NFSD_XDR3_H
10
11#include "xdr.h"
12
13struct nfsd3_sattrargs {
14 struct svc_fh fh;
15 struct iattr attrs;
16 int check_guard;
17 time_t guardtime;
18};
19
20struct nfsd3_diropargs {
21 struct svc_fh fh;
22 char * name;
23 unsigned int len;
24};
25
26struct nfsd3_accessargs {
27 struct svc_fh fh;
28 unsigned int access;
29};
30
31struct nfsd3_readargs {
32 struct svc_fh fh;
33 __u64 offset;
34 __u32 count;
35 int vlen;
36};
37
38struct nfsd3_writeargs {
39 svc_fh fh;
40 __u64 offset;
41 __u32 count;
42 int stable;
43 __u32 len;
44 struct kvec first;
45};
46
47struct nfsd3_createargs {
48 struct svc_fh fh;
49 char * name;
50 unsigned int len;
51 int createmode;
52 struct iattr attrs;
53 __be32 * verf;
54};
55
56struct nfsd3_mknodargs {
57 struct svc_fh fh;
58 char * name;
59 unsigned int len;
60 __u32 ftype;
61 __u32 major, minor;
62 struct iattr attrs;
63};
64
65struct nfsd3_renameargs {
66 struct svc_fh ffh;
67 char * fname;
68 unsigned int flen;
69 struct svc_fh tfh;
70 char * tname;
71 unsigned int tlen;
72};
73
74struct nfsd3_readlinkargs {
75 struct svc_fh fh;
76 char * buffer;
77};
78
79struct nfsd3_linkargs {
80 struct svc_fh ffh;
81 struct svc_fh tfh;
82 char * tname;
83 unsigned int tlen;
84};
85
86struct nfsd3_symlinkargs {
87 struct svc_fh ffh;
88 char * fname;
89 unsigned int flen;
90 char * tname;
91 unsigned int tlen;
92 struct iattr attrs;
93 struct kvec first;
94};
95
96struct nfsd3_readdirargs {
97 struct svc_fh fh;
98 __u64 cookie;
99 __u32 dircount;
100 __u32 count;
101 __be32 * verf;
102 __be32 * buffer;
103};
104
105struct nfsd3_commitargs {
106 struct svc_fh fh;
107 __u64 offset;
108 __u32 count;
109};
110
111struct nfsd3_getaclargs {
112 struct svc_fh fh;
113 int mask;
114};
115
116struct posix_acl;
117struct nfsd3_setaclargs {
118 struct svc_fh fh;
119 int mask;
120 struct posix_acl *acl_access;
121 struct posix_acl *acl_default;
122};
123
124struct nfsd3_attrstat {
125 __be32 status;
126 struct svc_fh fh;
127 struct kstat stat;
128};
129
130/* LOOKUP, CREATE, MKDIR, SYMLINK, MKNOD */
131struct nfsd3_diropres {
132 __be32 status;
133 struct svc_fh dirfh;
134 struct svc_fh fh;
135};
136
137struct nfsd3_accessres {
138 __be32 status;
139 struct svc_fh fh;
140 __u32 access;
141 struct kstat stat;
142};
143
144struct nfsd3_readlinkres {
145 __be32 status;
146 struct svc_fh fh;
147 __u32 len;
148};
149
150struct nfsd3_readres {
151 __be32 status;
152 struct svc_fh fh;
153 unsigned long count;
154 int eof;
155};
156
157struct nfsd3_writeres {
158 __be32 status;
159 struct svc_fh fh;
160 unsigned long count;
161 int committed;
162};
163
164struct nfsd3_renameres {
165 __be32 status;
166 struct svc_fh ffh;
167 struct svc_fh tfh;
168};
169
170struct nfsd3_linkres {
171 __be32 status;
172 struct svc_fh tfh;
173 struct svc_fh fh;
174};
175
176struct nfsd3_readdirres {
177 __be32 status;
178 struct svc_fh fh;
179 /* Just to save kmalloc on every readdirplus entry (svc_fh is a
180 * little large for the stack): */
181 struct svc_fh scratch;
182 int count;
183 __be32 verf[2];
184
185 struct readdir_cd common;
186 __be32 * buffer;
187 int buflen;
188 __be32 * offset;
189 __be32 * offset1;
190 struct svc_rqst * rqstp;
191
192};
193
194struct nfsd3_fsstatres {
195 __be32 status;
196 struct kstatfs stats;
197 __u32 invarsec;
198};
199
200struct nfsd3_fsinfores {
201 __be32 status;
202 __u32 f_rtmax;
203 __u32 f_rtpref;
204 __u32 f_rtmult;
205 __u32 f_wtmax;
206 __u32 f_wtpref;
207 __u32 f_wtmult;
208 __u32 f_dtpref;
209 __u64 f_maxfilesize;
210 __u32 f_properties;
211};
212
213struct nfsd3_pathconfres {
214 __be32 status;
215 __u32 p_link_max;
216 __u32 p_name_max;
217 __u32 p_no_trunc;
218 __u32 p_chown_restricted;
219 __u32 p_case_insensitive;
220 __u32 p_case_preserving;
221};
222
223struct nfsd3_commitres {
224 __be32 status;
225 struct svc_fh fh;
226};
227
228struct nfsd3_getaclres {
229 __be32 status;
230 struct svc_fh fh;
231 int mask;
232 struct posix_acl *acl_access;
233 struct posix_acl *acl_default;
234 struct kstat stat;
235};
236
237/* dummy type for release */
238struct nfsd3_fhandle_pair {
239 __u32 dummy;
240 struct svc_fh fh1;
241 struct svc_fh fh2;
242};
243
244/*
245 * Storage requirements for XDR arguments and results.
246 */
247union nfsd3_xdrstore {
248 struct nfsd3_sattrargs sattrargs;
249 struct nfsd3_diropargs diropargs;
250 struct nfsd3_readargs readargs;
251 struct nfsd3_writeargs writeargs;
252 struct nfsd3_createargs createargs;
253 struct nfsd3_renameargs renameargs;
254 struct nfsd3_linkargs linkargs;
255 struct nfsd3_symlinkargs symlinkargs;
256 struct nfsd3_readdirargs readdirargs;
257 struct nfsd3_diropres diropres;
258 struct nfsd3_accessres accessres;
259 struct nfsd3_readlinkres readlinkres;
260 struct nfsd3_readres readres;
261 struct nfsd3_writeres writeres;
262 struct nfsd3_renameres renameres;
263 struct nfsd3_linkres linkres;
264 struct nfsd3_readdirres readdirres;
265 struct nfsd3_fsstatres fsstatres;
266 struct nfsd3_fsinfores fsinfores;
267 struct nfsd3_pathconfres pathconfres;
268 struct nfsd3_commitres commitres;
269 struct nfsd3_getaclres getaclres;
270};
271
272#define NFS3_SVC_XDRSIZE sizeof(union nfsd3_xdrstore)
273
274int nfs3svc_decode_fhandle(struct svc_rqst *, __be32 *);
275int nfs3svc_decode_sattrargs(struct svc_rqst *, __be32 *);
276int nfs3svc_decode_diropargs(struct svc_rqst *, __be32 *);
277int nfs3svc_decode_accessargs(struct svc_rqst *, __be32 *);
278int nfs3svc_decode_readargs(struct svc_rqst *, __be32 *);
279int nfs3svc_decode_writeargs(struct svc_rqst *, __be32 *);
280int nfs3svc_decode_createargs(struct svc_rqst *, __be32 *);
281int nfs3svc_decode_mkdirargs(struct svc_rqst *, __be32 *);
282int nfs3svc_decode_mknodargs(struct svc_rqst *, __be32 *);
283int nfs3svc_decode_renameargs(struct svc_rqst *, __be32 *);
284int nfs3svc_decode_readlinkargs(struct svc_rqst *, __be32 *);
285int nfs3svc_decode_linkargs(struct svc_rqst *, __be32 *);
286int nfs3svc_decode_symlinkargs(struct svc_rqst *, __be32 *);
287int nfs3svc_decode_readdirargs(struct svc_rqst *, __be32 *);
288int nfs3svc_decode_readdirplusargs(struct svc_rqst *, __be32 *);
289int nfs3svc_decode_commitargs(struct svc_rqst *, __be32 *);
290int nfs3svc_encode_voidres(struct svc_rqst *, __be32 *);
291int nfs3svc_encode_attrstat(struct svc_rqst *, __be32 *);
292int nfs3svc_encode_wccstat(struct svc_rqst *, __be32 *);
293int nfs3svc_encode_diropres(struct svc_rqst *, __be32 *);
294int nfs3svc_encode_accessres(struct svc_rqst *, __be32 *);
295int nfs3svc_encode_readlinkres(struct svc_rqst *, __be32 *);
296int nfs3svc_encode_readres(struct svc_rqst *, __be32 *);
297int nfs3svc_encode_writeres(struct svc_rqst *, __be32 *);
298int nfs3svc_encode_createres(struct svc_rqst *, __be32 *);
299int nfs3svc_encode_renameres(struct svc_rqst *, __be32 *);
300int nfs3svc_encode_linkres(struct svc_rqst *, __be32 *);
301int nfs3svc_encode_readdirres(struct svc_rqst *, __be32 *);
302int nfs3svc_encode_fsstatres(struct svc_rqst *, __be32 *);
303int nfs3svc_encode_fsinfores(struct svc_rqst *, __be32 *);
304int nfs3svc_encode_pathconfres(struct svc_rqst *, __be32 *);
305int nfs3svc_encode_commitres(struct svc_rqst *, __be32 *);
306
307void nfs3svc_release_fhandle(struct svc_rqst *);
308void nfs3svc_release_fhandle2(struct svc_rqst *);
309int nfs3svc_encode_entry(void *, const char *name,
310 int namlen, loff_t offset, u64 ino,
311 unsigned int);
312int nfs3svc_encode_entry_plus(void *, const char *name,
313 int namlen, loff_t offset, u64 ino,
314 unsigned int);
315/* Helper functions for NFSv3 ACL code */
316__be32 *nfs3svc_encode_post_op_attr(struct svc_rqst *rqstp, __be32 *p,
317 struct svc_fh *fhp);
318__be32 *nfs3svc_decode_fh(__be32 *p, struct svc_fh *fhp);
319
320
321#endif /* _LINUX_NFSD_XDR3_H */