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
13 struct nfsd3_sattrargs {
14 struct svc_fh fh;
15 struct iattr attrs;
16 int check_guard;
17 struct timespec64 guardtime;
18 };
19
20 struct nfsd3_diropargs {
21 struct svc_fh fh;
22 char * name;
23 unsigned int len;
24 };
25
26 struct nfsd3_accessargs {
27 struct svc_fh fh;
28 __u32 access;
29 };
30
31 struct nfsd3_readargs {
32 struct svc_fh fh;
33 __u64 offset;
34 __u32 count;
35 };
36
37 struct nfsd3_writeargs {
38 svc_fh fh;
39 __u64 offset;
40 __u32 count;
41 int stable;
42 __u32 len;
43 struct xdr_buf payload;
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_linkargs {
74 struct svc_fh ffh;
75 struct svc_fh tfh;
76 char * tname;
77 unsigned int tlen;
78 };
79
80 struct nfsd3_symlinkargs {
81 struct svc_fh ffh;
82 char * fname;
83 unsigned int flen;
84 char * tname;
85 unsigned int tlen;
86 struct iattr attrs;
87 struct kvec first;
88 };
89
90 struct nfsd3_readdirargs {
91 struct svc_fh fh;
92 __u64 cookie;
93 __u32 count;
94 __be32 * verf;
95 };
96
97 struct nfsd3_commitargs {
98 struct svc_fh fh;
99 __u64 offset;
100 __u32 count;
101 };
102
103 struct nfsd3_getaclargs {
104 struct svc_fh fh;
105 __u32 mask;
106 };
107
108 struct posix_acl;
109 struct nfsd3_setaclargs {
110 struct svc_fh fh;
111 __u32 mask;
112 struct posix_acl *acl_access;
113 struct posix_acl *acl_default;
114 };
115
116 struct nfsd3_attrstat {
117 __be32 status;
118 struct svc_fh fh;
119 struct kstat stat;
120 };
121
122 /* LOOKUP, CREATE, MKDIR, SYMLINK, MKNOD */
123 struct nfsd3_diropres {
124 __be32 status;
125 struct svc_fh dirfh;
126 struct svc_fh fh;
127 };
128
129 struct nfsd3_accessres {
130 __be32 status;
131 struct svc_fh fh;
132 __u32 access;
133 struct kstat stat;
134 };
135
136 struct nfsd3_readlinkres {
137 __be32 status;
138 struct svc_fh fh;
139 __u32 len;
140 struct page **pages;
141 };
142
143 struct nfsd3_readres {
144 __be32 status;
145 struct svc_fh fh;
146 unsigned long count;
147 __u32 eof;
148 struct page **pages;
149 };
150
151 struct nfsd3_writeres {
152 __be32 status;
153 struct svc_fh fh;
154 unsigned long count;
155 int committed;
156 __be32 verf[2];
157 };
158
159 struct nfsd3_renameres {
160 __be32 status;
161 struct svc_fh ffh;
162 struct svc_fh tfh;
163 };
164
165 struct nfsd3_linkres {
166 __be32 status;
167 struct svc_fh tfh;
168 struct svc_fh fh;
169 };
170
171 struct nfsd3_readdirres {
172 /* Components of the reply */
173 __be32 status;
174 struct svc_fh fh;
175 __be32 verf[2];
176
177 /* Used to encode the reply's entry list */
178 struct xdr_stream xdr;
179 struct xdr_buf dirlist;
180 struct svc_fh scratch;
181 struct readdir_cd common;
182 unsigned int cookie_offset;
183 struct svc_rqst * rqstp;
184
185 };
186
187 struct nfsd3_fsstatres {
188 __be32 status;
189 struct kstatfs stats;
190 __u32 invarsec;
191 };
192
193 struct nfsd3_fsinfores {
194 __be32 status;
195 __u32 f_rtmax;
196 __u32 f_rtpref;
197 __u32 f_rtmult;
198 __u32 f_wtmax;
199 __u32 f_wtpref;
200 __u32 f_wtmult;
201 __u32 f_dtpref;
202 __u64 f_maxfilesize;
203 __u32 f_properties;
204 };
205
206 struct nfsd3_pathconfres {
207 __be32 status;
208 __u32 p_link_max;
209 __u32 p_name_max;
210 __u32 p_no_trunc;
211 __u32 p_chown_restricted;
212 __u32 p_case_insensitive;
213 __u32 p_case_preserving;
214 };
215
216 struct nfsd3_commitres {
217 __be32 status;
218 struct svc_fh fh;
219 __be32 verf[2];
220 };
221
222 struct nfsd3_getaclres {
223 __be32 status;
224 struct svc_fh fh;
225 int mask;
226 struct posix_acl *acl_access;
227 struct posix_acl *acl_default;
228 struct kstat stat;
229 };
230
231 /* dummy type for release */
232 struct nfsd3_fhandle_pair {
233 __u32 dummy;
234 struct svc_fh fh1;
235 struct svc_fh fh2;
236 };
237
238 /*
239 * Storage requirements for XDR arguments and results.
240 */
241 union nfsd3_xdrstore {
242 struct nfsd3_sattrargs sattrargs;
243 struct nfsd3_diropargs diropargs;
244 struct nfsd3_readargs readargs;
245 struct nfsd3_writeargs writeargs;
246 struct nfsd3_createargs createargs;
247 struct nfsd3_renameargs renameargs;
248 struct nfsd3_linkargs linkargs;
249 struct nfsd3_symlinkargs symlinkargs;
250 struct nfsd3_readdirargs readdirargs;
251 struct nfsd3_diropres diropres;
252 struct nfsd3_accessres accessres;
253 struct nfsd3_readlinkres readlinkres;
254 struct nfsd3_readres readres;
255 struct nfsd3_writeres writeres;
256 struct nfsd3_renameres renameres;
257 struct nfsd3_linkres linkres;
258 struct nfsd3_readdirres readdirres;
259 struct nfsd3_fsstatres fsstatres;
260 struct nfsd3_fsinfores fsinfores;
261 struct nfsd3_pathconfres pathconfres;
262 struct nfsd3_commitres commitres;
263 struct nfsd3_getaclres getaclres;
264 };
265
266 #define NFS3_SVC_XDRSIZE sizeof(union nfsd3_xdrstore)
267
268 bool nfs3svc_decode_fhandleargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
269 bool nfs3svc_decode_sattrargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
270 bool nfs3svc_decode_diropargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
271 bool nfs3svc_decode_accessargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
272 bool nfs3svc_decode_readargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
273 bool nfs3svc_decode_writeargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
274 bool nfs3svc_decode_createargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
275 bool nfs3svc_decode_mkdirargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
276 bool nfs3svc_decode_mknodargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
277 bool nfs3svc_decode_renameargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
278 bool nfs3svc_decode_linkargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
279 bool nfs3svc_decode_symlinkargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
280 bool nfs3svc_decode_readdirargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
281 bool nfs3svc_decode_readdirplusargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
282 bool nfs3svc_decode_commitargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
283
284 bool nfs3svc_encode_getattrres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
285 bool nfs3svc_encode_wccstat(struct svc_rqst *rqstp, struct xdr_stream *xdr);
286 bool nfs3svc_encode_lookupres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
287 bool nfs3svc_encode_accessres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
288 bool nfs3svc_encode_readlinkres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
289 bool nfs3svc_encode_readres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
290 bool nfs3svc_encode_writeres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
291 bool nfs3svc_encode_createres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
292 bool nfs3svc_encode_renameres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
293 bool nfs3svc_encode_linkres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
294 bool nfs3svc_encode_readdirres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
295 bool nfs3svc_encode_fsstatres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
296 bool nfs3svc_encode_fsinfores(struct svc_rqst *rqstp, struct xdr_stream *xdr);
297 bool nfs3svc_encode_pathconfres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
298 bool nfs3svc_encode_commitres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
299
300 void nfs3svc_release_fhandle(struct svc_rqst *);
301 void nfs3svc_release_fhandle2(struct svc_rqst *);
302
303 void nfs3svc_encode_cookie3(struct nfsd3_readdirres *resp, u64 offset);
304 int nfs3svc_encode_entry3(void *data, const char *name, int namlen,
305 loff_t offset, u64 ino, unsigned int d_type);
306 int nfs3svc_encode_entryplus3(void *data, const char *name, int namlen,
307 loff_t offset, u64 ino, unsigned int d_type);
308 /* Helper functions for NFSv3 ACL code */
309 bool svcxdr_decode_nfs_fh3(struct xdr_stream *xdr, struct svc_fh *fhp);
310 bool svcxdr_encode_nfsstat3(struct xdr_stream *xdr, __be32 status);
311 bool svcxdr_encode_post_op_attr(struct svc_rqst *rqstp, struct xdr_stream *xdr,
312 const struct svc_fh *fhp);
313
314 #endif /* _LINUX_NFSD_XDR3_H */
315
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