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Linux/fs/nfsd/xdr3.h

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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 
 13 struct nfsd3_sattrargs {
 14         struct svc_fh           fh;
 15         struct iattr            attrs;
 16         int                     check_guard;
 17         time_t                  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         unsigned int            access;
 29 };
 30 
 31 struct nfsd3_readargs {
 32         struct svc_fh           fh;
 33         __u64                   offset;
 34         __u32                   count;
 35         int                     vlen;
 36 };
 37 
 38 struct nfsd3_writeargs {
 39         svc_fh                  fh;
 40         __u64                   offset;
 41         __u32                   count;
 42         int                     stable;
 43         __u32                   len;
 44         struct kvec             first;
 45 };
 46 
 47 struct 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 
 56 struct 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 
 65 struct 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 
 74 struct nfsd3_readlinkargs {
 75         struct svc_fh           fh;
 76         char *                  buffer;
 77 };
 78 
 79 struct nfsd3_linkargs {
 80         struct svc_fh           ffh;
 81         struct svc_fh           tfh;
 82         char *                  tname;
 83         unsigned int            tlen;
 84 };
 85 
 86 struct 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 
 96 struct nfsd3_readdirargs {
 97         struct svc_fh           fh;
 98         __u64                   cookie;
 99         __u32                   dircount;
100         __u32                   count;
101         __be32 *                verf;
102         __be32 *                buffer;
103 };
104 
105 struct nfsd3_commitargs {
106         struct svc_fh           fh;
107         __u64                   offset;
108         __u32                   count;
109 };
110 
111 struct nfsd3_getaclargs {
112         struct svc_fh           fh;
113         int                     mask;
114 };
115 
116 struct posix_acl;
117 struct nfsd3_setaclargs {
118         struct svc_fh           fh;
119         int                     mask;
120         struct posix_acl        *acl_access;
121         struct posix_acl        *acl_default;
122 };
123 
124 struct nfsd3_attrstat {
125         __be32                  status;
126         struct svc_fh           fh;
127         struct kstat            stat;
128 };
129 
130 /* LOOKUP, CREATE, MKDIR, SYMLINK, MKNOD */
131 struct nfsd3_diropres  {
132         __be32                  status;
133         struct svc_fh           dirfh;
134         struct svc_fh           fh;
135 };
136 
137 struct nfsd3_accessres {
138         __be32                  status;
139         struct svc_fh           fh;
140         __u32                   access;
141         struct kstat            stat;
142 };
143 
144 struct nfsd3_readlinkres {
145         __be32                  status;
146         struct svc_fh           fh;
147         __u32                   len;
148 };
149 
150 struct nfsd3_readres {
151         __be32                  status;
152         struct svc_fh           fh;
153         unsigned long           count;
154         int                     eof;
155 };
156 
157 struct nfsd3_writeres {
158         __be32                  status;
159         struct svc_fh           fh;
160         unsigned long           count;
161         int                     committed;
162 };
163 
164 struct nfsd3_renameres {
165         __be32                  status;
166         struct svc_fh           ffh;
167         struct svc_fh           tfh;
168 };
169 
170 struct nfsd3_linkres {
171         __be32                  status;
172         struct svc_fh           tfh;
173         struct svc_fh           fh;
174 };
175 
176 struct 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 
194 struct nfsd3_fsstatres {
195         __be32                  status;
196         struct kstatfs          stats;
197         __u32                   invarsec;
198 };
199 
200 struct 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 
213 struct 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 
223 struct nfsd3_commitres {
224         __be32                  status;
225         struct svc_fh           fh;
226 };
227 
228 struct 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 */
238 struct 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  */
247 union 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 
274 int nfs3svc_decode_fhandle(struct svc_rqst *, __be32 *);
275 int nfs3svc_decode_sattrargs(struct svc_rqst *, __be32 *);
276 int nfs3svc_decode_diropargs(struct svc_rqst *, __be32 *);
277 int nfs3svc_decode_accessargs(struct svc_rqst *, __be32 *);
278 int nfs3svc_decode_readargs(struct svc_rqst *, __be32 *);
279 int nfs3svc_decode_writeargs(struct svc_rqst *, __be32 *);
280 int nfs3svc_decode_createargs(struct svc_rqst *, __be32 *);
281 int nfs3svc_decode_mkdirargs(struct svc_rqst *, __be32 *);
282 int nfs3svc_decode_mknodargs(struct svc_rqst *, __be32 *);
283 int nfs3svc_decode_renameargs(struct svc_rqst *, __be32 *);
284 int nfs3svc_decode_readlinkargs(struct svc_rqst *, __be32 *);
285 int nfs3svc_decode_linkargs(struct svc_rqst *, __be32 *);
286 int nfs3svc_decode_symlinkargs(struct svc_rqst *, __be32 *);
287 int nfs3svc_decode_readdirargs(struct svc_rqst *, __be32 *);
288 int nfs3svc_decode_readdirplusargs(struct svc_rqst *, __be32 *);
289 int nfs3svc_decode_commitargs(struct svc_rqst *, __be32 *);
290 int nfs3svc_encode_voidres(struct svc_rqst *, __be32 *);
291 int nfs3svc_encode_attrstat(struct svc_rqst *, __be32 *);
292 int nfs3svc_encode_wccstat(struct svc_rqst *, __be32 *);
293 int nfs3svc_encode_diropres(struct svc_rqst *, __be32 *);
294 int nfs3svc_encode_accessres(struct svc_rqst *, __be32 *);
295 int nfs3svc_encode_readlinkres(struct svc_rqst *, __be32 *);
296 int nfs3svc_encode_readres(struct svc_rqst *, __be32 *);
297 int nfs3svc_encode_writeres(struct svc_rqst *, __be32 *);
298 int nfs3svc_encode_createres(struct svc_rqst *, __be32 *);
299 int nfs3svc_encode_renameres(struct svc_rqst *, __be32 *);
300 int nfs3svc_encode_linkres(struct svc_rqst *, __be32 *);
301 int nfs3svc_encode_readdirres(struct svc_rqst *, __be32 *);
302 int nfs3svc_encode_fsstatres(struct svc_rqst *, __be32 *);
303 int nfs3svc_encode_fsinfores(struct svc_rqst *, __be32 *);
304 int nfs3svc_encode_pathconfres(struct svc_rqst *, __be32 *);
305 int nfs3svc_encode_commitres(struct svc_rqst *, __be32 *);
306 
307 void nfs3svc_release_fhandle(struct svc_rqst *);
308 void nfs3svc_release_fhandle2(struct svc_rqst *);
309 int nfs3svc_encode_entry(void *, const char *name,
310                                 int namlen, loff_t offset, u64 ino,
311                                 unsigned int);
312 int 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 */
322 

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