tjh.dev
Linux kernel mirror (for testing)
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kernel
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linux
1/*
2 * include/linux/nfsd/xdr4.h
3 *
4 * Server-side types for NFSv4.
5 *
6 * Copyright (c) 2002 The Regents of the University of Michigan.
7 * All rights reserved.
8 *
9 * Kendrick Smith <kmsmith@umich.edu>
10 * Andy Adamson <andros@umich.edu>
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 *
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. Neither the name of the University nor the names of its
22 * contributors may be used to endorse or promote products derived
23 * from this software without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
26 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
27 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
28 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
32 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
33 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
34 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
35 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 *
37 */
38
39#ifndef _LINUX_NFSD_XDR4_H
40#define _LINUX_NFSD_XDR4_H
41
42#include <linux/nfs4.h>
43
44#define NFSD4_MAX_TAGLEN 128
45#define XDR_LEN(n) (((n) + 3) & ~3)
46
47struct nfsd4_change_info {
48 u32 atomic;
49 u32 before_ctime_sec;
50 u32 before_ctime_nsec;
51 u32 after_ctime_sec;
52 u32 after_ctime_nsec;
53};
54
55struct nfsd4_access {
56 u32 ac_req_access; /* request */
57 u32 ac_supported; /* response */
58 u32 ac_resp_access; /* response */
59};
60
61struct nfsd4_close {
62 u32 cl_seqid; /* request */
63 stateid_t cl_stateid; /* request+response */
64 struct nfs4_stateowner * cl_stateowner; /* response */
65};
66
67struct nfsd4_commit {
68 u64 co_offset; /* request */
69 u32 co_count; /* request */
70 nfs4_verifier co_verf; /* response */
71};
72
73struct nfsd4_create {
74 u32 cr_namelen; /* request */
75 char * cr_name; /* request */
76 u32 cr_type; /* request */
77 union { /* request */
78 struct {
79 u32 namelen;
80 char *name;
81 } link; /* NF4LNK */
82 struct {
83 u32 specdata1;
84 u32 specdata2;
85 } dev; /* NF4BLK, NF4CHR */
86 } u;
87 u32 cr_bmval[2]; /* request */
88 struct iattr cr_iattr; /* request */
89 struct nfsd4_change_info cr_cinfo; /* response */
90 struct nfs4_acl *cr_acl;
91};
92#define cr_linklen u.link.namelen
93#define cr_linkname u.link.name
94#define cr_specdata1 u.dev.specdata1
95#define cr_specdata2 u.dev.specdata2
96
97struct nfsd4_delegreturn {
98 stateid_t dr_stateid;
99};
100
101struct nfsd4_getattr {
102 u32 ga_bmval[2]; /* request */
103 struct svc_fh *ga_fhp; /* response */
104};
105
106struct nfsd4_link {
107 u32 li_namelen; /* request */
108 char * li_name; /* request */
109 struct nfsd4_change_info li_cinfo; /* response */
110};
111
112struct nfsd4_lock_denied {
113 clientid_t ld_clientid;
114 struct nfs4_stateowner *ld_sop;
115 u64 ld_start;
116 u64 ld_length;
117 u32 ld_type;
118};
119
120struct nfsd4_lock {
121 /* request */
122 u32 lk_type;
123 u32 lk_reclaim; /* boolean */
124 u64 lk_offset;
125 u64 lk_length;
126 u32 lk_is_new;
127 union {
128 struct {
129 u32 open_seqid;
130 stateid_t open_stateid;
131 u32 lock_seqid;
132 clientid_t clientid;
133 struct xdr_netobj owner;
134 } new;
135 struct {
136 stateid_t lock_stateid;
137 u32 lock_seqid;
138 } old;
139 } v;
140
141 /* response */
142 union {
143 struct {
144 stateid_t stateid;
145 } ok;
146 struct nfsd4_lock_denied denied;
147 } u;
148 /* The lk_replay_owner is the open owner in the open_to_lock_owner
149 * case and the lock owner otherwise: */
150 struct nfs4_stateowner *lk_replay_owner;
151};
152#define lk_new_open_seqid v.new.open_seqid
153#define lk_new_open_stateid v.new.open_stateid
154#define lk_new_lock_seqid v.new.lock_seqid
155#define lk_new_clientid v.new.clientid
156#define lk_new_owner v.new.owner
157#define lk_old_lock_stateid v.old.lock_stateid
158#define lk_old_lock_seqid v.old.lock_seqid
159
160#define lk_rflags u.ok.rflags
161#define lk_resp_stateid u.ok.stateid
162#define lk_denied u.denied
163
164
165struct nfsd4_lockt {
166 u32 lt_type;
167 clientid_t lt_clientid;
168 struct xdr_netobj lt_owner;
169 u64 lt_offset;
170 u64 lt_length;
171 struct nfs4_stateowner * lt_stateowner;
172 struct nfsd4_lock_denied lt_denied;
173};
174
175
176struct nfsd4_locku {
177 u32 lu_type;
178 u32 lu_seqid;
179 stateid_t lu_stateid;
180 u64 lu_offset;
181 u64 lu_length;
182 struct nfs4_stateowner *lu_stateowner;
183};
184
185
186struct nfsd4_lookup {
187 u32 lo_len; /* request */
188 char * lo_name; /* request */
189};
190
191struct nfsd4_putfh {
192 u32 pf_fhlen; /* request */
193 char *pf_fhval; /* request */
194};
195
196struct nfsd4_open {
197 u32 op_claim_type; /* request */
198 struct xdr_netobj op_fname; /* request - everything but CLAIM_PREV */
199 u32 op_delegate_type; /* request - CLAIM_PREV only */
200 stateid_t op_delegate_stateid; /* request - response */
201 u32 op_create; /* request */
202 u32 op_createmode; /* request */
203 u32 op_bmval[2]; /* request */
204 union { /* request */
205 struct iattr iattr; /* UNCHECKED4,GUARDED4 */
206 nfs4_verifier verf; /* EXCLUSIVE4 */
207 } u;
208 clientid_t op_clientid; /* request */
209 struct xdr_netobj op_owner; /* request */
210 u32 op_seqid; /* request */
211 u32 op_share_access; /* request */
212 u32 op_share_deny; /* request */
213 stateid_t op_stateid; /* response */
214 u32 op_recall; /* recall */
215 struct nfsd4_change_info op_cinfo; /* response */
216 u32 op_rflags; /* response */
217 int op_truncate; /* used during processing */
218 struct nfs4_stateowner *op_stateowner; /* used during processing */
219 struct nfs4_acl *op_acl;
220};
221#define op_iattr u.iattr
222#define op_verf u.verf
223
224struct nfsd4_open_confirm {
225 stateid_t oc_req_stateid /* request */;
226 u32 oc_seqid /* request */;
227 stateid_t oc_resp_stateid /* response */;
228 struct nfs4_stateowner * oc_stateowner; /* response */
229};
230
231struct nfsd4_open_downgrade {
232 stateid_t od_stateid;
233 u32 od_seqid;
234 u32 od_share_access;
235 u32 od_share_deny;
236 struct nfs4_stateowner *od_stateowner;
237};
238
239
240struct nfsd4_read {
241 stateid_t rd_stateid; /* request */
242 u64 rd_offset; /* request */
243 u32 rd_length; /* request */
244 int rd_vlen;
245 struct file *rd_filp;
246
247 struct svc_rqst *rd_rqstp; /* response */
248 struct svc_fh * rd_fhp; /* response */
249};
250
251struct nfsd4_readdir {
252 u64 rd_cookie; /* request */
253 nfs4_verifier rd_verf; /* request */
254 u32 rd_dircount; /* request */
255 u32 rd_maxcount; /* request */
256 u32 rd_bmval[2]; /* request */
257 struct svc_rqst *rd_rqstp; /* response */
258 struct svc_fh * rd_fhp; /* response */
259
260 struct readdir_cd common;
261 __be32 * buffer;
262 int buflen;
263 __be32 * offset;
264};
265
266struct nfsd4_release_lockowner {
267 clientid_t rl_clientid;
268 struct xdr_netobj rl_owner;
269};
270struct nfsd4_readlink {
271 struct svc_rqst *rl_rqstp; /* request */
272 struct svc_fh * rl_fhp; /* request */
273};
274
275struct nfsd4_remove {
276 u32 rm_namelen; /* request */
277 char * rm_name; /* request */
278 struct nfsd4_change_info rm_cinfo; /* response */
279};
280
281struct nfsd4_rename {
282 u32 rn_snamelen; /* request */
283 char * rn_sname; /* request */
284 u32 rn_tnamelen; /* request */
285 char * rn_tname; /* request */
286 struct nfsd4_change_info rn_sinfo; /* response */
287 struct nfsd4_change_info rn_tinfo; /* response */
288};
289
290struct nfsd4_setattr {
291 stateid_t sa_stateid; /* request */
292 u32 sa_bmval[2]; /* request */
293 struct iattr sa_iattr; /* request */
294 struct nfs4_acl *sa_acl;
295};
296
297struct nfsd4_setclientid {
298 nfs4_verifier se_verf; /* request */
299 u32 se_namelen; /* request */
300 char * se_name; /* request */
301 u32 se_callback_prog; /* request */
302 u32 se_callback_netid_len; /* request */
303 char * se_callback_netid_val; /* request */
304 u32 se_callback_addr_len; /* request */
305 char * se_callback_addr_val; /* request */
306 u32 se_callback_ident; /* request */
307 clientid_t se_clientid; /* response */
308 nfs4_verifier se_confirm; /* response */
309};
310
311struct nfsd4_setclientid_confirm {
312 clientid_t sc_clientid;
313 nfs4_verifier sc_confirm;
314};
315
316/* also used for NVERIFY */
317struct nfsd4_verify {
318 u32 ve_bmval[2]; /* request */
319 u32 ve_attrlen; /* request */
320 char * ve_attrval; /* request */
321};
322
323struct nfsd4_write {
324 stateid_t wr_stateid; /* request */
325 u64 wr_offset; /* request */
326 u32 wr_stable_how; /* request */
327 u32 wr_buflen; /* request */
328 int wr_vlen;
329
330 u32 wr_bytes_written; /* response */
331 u32 wr_how_written; /* response */
332 nfs4_verifier wr_verifier; /* response */
333};
334
335struct nfsd4_op {
336 int opnum;
337 __be32 status;
338 union {
339 struct nfsd4_access access;
340 struct nfsd4_close close;
341 struct nfsd4_commit commit;
342 struct nfsd4_create create;
343 struct nfsd4_delegreturn delegreturn;
344 struct nfsd4_getattr getattr;
345 struct svc_fh * getfh;
346 struct nfsd4_link link;
347 struct nfsd4_lock lock;
348 struct nfsd4_lockt lockt;
349 struct nfsd4_locku locku;
350 struct nfsd4_lookup lookup;
351 struct nfsd4_verify nverify;
352 struct nfsd4_open open;
353 struct nfsd4_open_confirm open_confirm;
354 struct nfsd4_open_downgrade open_downgrade;
355 struct nfsd4_putfh putfh;
356 struct nfsd4_read read;
357 struct nfsd4_readdir readdir;
358 struct nfsd4_readlink readlink;
359 struct nfsd4_remove remove;
360 struct nfsd4_rename rename;
361 clientid_t renew;
362 struct nfsd4_setattr setattr;
363 struct nfsd4_setclientid setclientid;
364 struct nfsd4_setclientid_confirm setclientid_confirm;
365 struct nfsd4_verify verify;
366 struct nfsd4_write write;
367 struct nfsd4_release_lockowner release_lockowner;
368 } u;
369 struct nfs4_replay * replay;
370};
371
372struct nfsd4_compoundargs {
373 /* scratch variables for XDR decode */
374 __be32 * p;
375 __be32 * end;
376 struct page ** pagelist;
377 int pagelen;
378 __be32 tmp[8];
379 __be32 * tmpp;
380 struct tmpbuf {
381 struct tmpbuf *next;
382 void (*release)(const void *);
383 void *buf;
384 } *to_free;
385
386 struct svc_rqst *rqstp;
387
388 u32 taglen;
389 char * tag;
390 u32 minorversion;
391 u32 opcnt;
392 struct nfsd4_op *ops;
393 struct nfsd4_op iops[8];
394};
395
396struct nfsd4_compoundres {
397 /* scratch variables for XDR encode */
398 __be32 * p;
399 __be32 * end;
400 struct xdr_buf * xbuf;
401 struct svc_rqst * rqstp;
402
403 u32 taglen;
404 char * tag;
405 u32 opcnt;
406 __be32 * tagp; /* where to encode tag and opcount */
407};
408
409#define NFS4_SVC_XDRSIZE sizeof(struct nfsd4_compoundargs)
410
411static inline void
412set_change_info(struct nfsd4_change_info *cinfo, struct svc_fh *fhp)
413{
414 BUG_ON(!fhp->fh_pre_saved || !fhp->fh_post_saved);
415 cinfo->atomic = 1;
416 cinfo->before_ctime_sec = fhp->fh_pre_ctime.tv_sec;
417 cinfo->before_ctime_nsec = fhp->fh_pre_ctime.tv_nsec;
418 cinfo->after_ctime_sec = fhp->fh_post_ctime.tv_sec;
419 cinfo->after_ctime_nsec = fhp->fh_post_ctime.tv_nsec;
420}
421
422int nfs4svc_encode_voidres(struct svc_rqst *, __be32 *, void *);
423int nfs4svc_decode_compoundargs(struct svc_rqst *, __be32 *,
424 struct nfsd4_compoundargs *);
425int nfs4svc_encode_compoundres(struct svc_rqst *, __be32 *,
426 struct nfsd4_compoundres *);
427void nfsd4_encode_operation(struct nfsd4_compoundres *, struct nfsd4_op *);
428void nfsd4_encode_replay(struct nfsd4_compoundres *resp, struct nfsd4_op *op);
429__be32 nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
430 struct dentry *dentry, __be32 *buffer, int *countp,
431 u32 *bmval, struct svc_rqst *);
432extern __be32 nfsd4_setclientid(struct svc_rqst *rqstp,
433 struct nfsd4_setclientid *setclid);
434extern __be32 nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
435 struct nfsd4_setclientid_confirm *setclientid_confirm);
436extern __be32 nfsd4_process_open1(struct nfsd4_open *open);
437extern __be32 nfsd4_process_open2(struct svc_rqst *rqstp,
438 struct svc_fh *current_fh, struct nfsd4_open *open);
439extern __be32 nfsd4_open_confirm(struct svc_rqst *rqstp,
440 struct svc_fh *current_fh, struct nfsd4_open_confirm *oc,
441 struct nfs4_stateowner **);
442extern __be32 nfsd4_close(struct svc_rqst *rqstp, struct svc_fh *current_fh,
443 struct nfsd4_close *close,
444 struct nfs4_stateowner **replay_owner);
445extern __be32 nfsd4_open_downgrade(struct svc_rqst *rqstp,
446 struct svc_fh *current_fh, struct nfsd4_open_downgrade *od,
447 struct nfs4_stateowner **replay_owner);
448extern __be32 nfsd4_lock(struct svc_rqst *rqstp, struct svc_fh *current_fh,
449 struct nfsd4_lock *lock,
450 struct nfs4_stateowner **replay_owner);
451extern __be32 nfsd4_lockt(struct svc_rqst *rqstp, struct svc_fh *current_fh,
452 struct nfsd4_lockt *lockt);
453extern __be32 nfsd4_locku(struct svc_rqst *rqstp, struct svc_fh *current_fh,
454 struct nfsd4_locku *locku,
455 struct nfs4_stateowner **replay_owner);
456extern __be32
457nfsd4_release_lockowner(struct svc_rqst *rqstp,
458 struct nfsd4_release_lockowner *rlockowner);
459extern void nfsd4_release_compoundargs(struct nfsd4_compoundargs *);
460extern __be32 nfsd4_delegreturn(struct svc_rqst *rqstp,
461 struct svc_fh *current_fh, struct nfsd4_delegreturn *dr);
462#endif
463
464/*
465 * Local variables:
466 * c-basic-offset: 8
467 * End:
468 */