aboutsummaryrefslogtreecommitdiffstats
path: root/fs/nfsd/xdr4.h
diff options
context:
space:
mode:
Diffstat (limited to 'fs/nfsd/xdr4.h')
-rw-r--r--fs/nfsd/xdr4.h562
1 files changed, 562 insertions, 0 deletions
diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h
new file mode 100644
index 000000000000..efa337739534
--- /dev/null
+++ b/fs/nfsd/xdr4.h
@@ -0,0 +1,562 @@
1/*
2 * Server-side types for NFSv4.
3 *
4 * Copyright (c) 2002 The Regents of the University of Michigan.
5 * All rights reserved.
6 *
7 * Kendrick Smith <kmsmith@umich.edu>
8 * Andy Adamson <andros@umich.edu>
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 *
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its
20 * contributors may be used to endorse or promote products derived
21 * from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
24 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
25 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
26 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
30 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
31 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
32 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
33 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 *
35 */
36
37#ifndef _LINUX_NFSD_XDR4_H
38#define _LINUX_NFSD_XDR4_H
39
40#include "state.h"
41#include "nfsd.h"
42
43#define NFSD4_MAX_TAGLEN 128
44#define XDR_LEN(n) (((n) + 3) & ~3)
45
46struct nfsd4_compound_state {
47 struct svc_fh current_fh;
48 struct svc_fh save_fh;
49 struct nfs4_stateowner *replay_owner;
50 /* For sessions DRC */
51 struct nfsd4_session *session;
52 struct nfsd4_slot *slot;
53 __be32 *datap;
54 size_t iovlen;
55 u32 minorversion;
56 u32 status;
57};
58
59static inline bool nfsd4_has_session(struct nfsd4_compound_state *cs)
60{
61 return cs->slot != NULL;
62}
63
64struct nfsd4_change_info {
65 u32 atomic;
66 bool change_supported;
67 u32 before_ctime_sec;
68 u32 before_ctime_nsec;
69 u64 before_change;
70 u32 after_ctime_sec;
71 u32 after_ctime_nsec;
72 u64 after_change;
73};
74
75struct nfsd4_access {
76 u32 ac_req_access; /* request */
77 u32 ac_supported; /* response */
78 u32 ac_resp_access; /* response */
79};
80
81struct nfsd4_close {
82 u32 cl_seqid; /* request */
83 stateid_t cl_stateid; /* request+response */
84 struct nfs4_stateowner * cl_stateowner; /* response */
85};
86
87struct nfsd4_commit {
88 u64 co_offset; /* request */
89 u32 co_count; /* request */
90 nfs4_verifier co_verf; /* response */
91};
92
93struct nfsd4_create {
94 u32 cr_namelen; /* request */
95 char * cr_name; /* request */
96 u32 cr_type; /* request */
97 union { /* request */
98 struct {
99 u32 namelen;
100 char *name;
101 } link; /* NF4LNK */
102 struct {
103 u32 specdata1;
104 u32 specdata2;
105 } dev; /* NF4BLK, NF4CHR */
106 } u;
107 u32 cr_bmval[3]; /* request */
108 struct iattr cr_iattr; /* request */
109 struct nfsd4_change_info cr_cinfo; /* response */
110 struct nfs4_acl *cr_acl;
111};
112#define cr_linklen u.link.namelen
113#define cr_linkname u.link.name
114#define cr_specdata1 u.dev.specdata1
115#define cr_specdata2 u.dev.specdata2
116
117struct nfsd4_delegreturn {
118 stateid_t dr_stateid;
119};
120
121struct nfsd4_getattr {
122 u32 ga_bmval[3]; /* request */
123 struct svc_fh *ga_fhp; /* response */
124};
125
126struct nfsd4_link {
127 u32 li_namelen; /* request */
128 char * li_name; /* request */
129 struct nfsd4_change_info li_cinfo; /* response */
130};
131
132struct nfsd4_lock_denied {
133 clientid_t ld_clientid;
134 struct nfs4_stateowner *ld_sop;
135 u64 ld_start;
136 u64 ld_length;
137 u32 ld_type;
138};
139
140struct nfsd4_lock {
141 /* request */
142 u32 lk_type;
143 u32 lk_reclaim; /* boolean */
144 u64 lk_offset;
145 u64 lk_length;
146 u32 lk_is_new;
147 union {
148 struct {
149 u32 open_seqid;
150 stateid_t open_stateid;
151 u32 lock_seqid;
152 clientid_t clientid;
153 struct xdr_netobj owner;
154 } new;
155 struct {
156 stateid_t lock_stateid;
157 u32 lock_seqid;
158 } old;
159 } v;
160
161 /* response */
162 union {
163 struct {
164 stateid_t stateid;
165 } ok;
166 struct nfsd4_lock_denied denied;
167 } u;
168 /* The lk_replay_owner is the open owner in the open_to_lock_owner
169 * case and the lock owner otherwise: */
170 struct nfs4_stateowner *lk_replay_owner;
171};
172#define lk_new_open_seqid v.new.open_seqid
173#define lk_new_open_stateid v.new.open_stateid
174#define lk_new_lock_seqid v.new.lock_seqid
175#define lk_new_clientid v.new.clientid
176#define lk_new_owner v.new.owner
177#define lk_old_lock_stateid v.old.lock_stateid
178#define lk_old_lock_seqid v.old.lock_seqid
179
180#define lk_rflags u.ok.rflags
181#define lk_resp_stateid u.ok.stateid
182#define lk_denied u.denied
183
184
185struct nfsd4_lockt {
186 u32 lt_type;
187 clientid_t lt_clientid;
188 struct xdr_netobj lt_owner;
189 u64 lt_offset;
190 u64 lt_length;
191 struct nfs4_stateowner * lt_stateowner;
192 struct nfsd4_lock_denied lt_denied;
193};
194
195
196struct nfsd4_locku {
197 u32 lu_type;
198 u32 lu_seqid;
199 stateid_t lu_stateid;
200 u64 lu_offset;
201 u64 lu_length;
202 struct nfs4_stateowner *lu_stateowner;
203};
204
205
206struct nfsd4_lookup {
207 u32 lo_len; /* request */
208 char * lo_name; /* request */
209};
210
211struct nfsd4_putfh {
212 u32 pf_fhlen; /* request */
213 char *pf_fhval; /* request */
214};
215
216struct nfsd4_open {
217 u32 op_claim_type; /* request */
218 struct xdr_netobj op_fname; /* request - everything but CLAIM_PREV */
219 u32 op_delegate_type; /* request - CLAIM_PREV only */
220 stateid_t op_delegate_stateid; /* request - response */
221 u32 op_create; /* request */
222 u32 op_createmode; /* request */
223 u32 op_bmval[3]; /* request */
224 struct iattr iattr; /* UNCHECKED4, GUARDED4, EXCLUSIVE4_1 */
225 nfs4_verifier verf; /* EXCLUSIVE4 */
226 clientid_t op_clientid; /* request */
227 struct xdr_netobj op_owner; /* request */
228 u32 op_seqid; /* request */
229 u32 op_share_access; /* request */
230 u32 op_share_deny; /* request */
231 stateid_t op_stateid; /* response */
232 u32 op_recall; /* recall */
233 struct nfsd4_change_info op_cinfo; /* response */
234 u32 op_rflags; /* response */
235 int op_truncate; /* used during processing */
236 struct nfs4_stateowner *op_stateowner; /* used during processing */
237 struct nfs4_acl *op_acl;
238};
239#define op_iattr iattr
240#define op_verf verf
241
242struct nfsd4_open_confirm {
243 stateid_t oc_req_stateid /* request */;
244 u32 oc_seqid /* request */;
245 stateid_t oc_resp_stateid /* response */;
246 struct nfs4_stateowner * oc_stateowner; /* response */
247};
248
249struct nfsd4_open_downgrade {
250 stateid_t od_stateid;
251 u32 od_seqid;
252 u32 od_share_access;
253 u32 od_share_deny;
254 struct nfs4_stateowner *od_stateowner;
255};
256
257
258struct nfsd4_read {
259 stateid_t rd_stateid; /* request */
260 u64 rd_offset; /* request */
261 u32 rd_length; /* request */
262 int rd_vlen;
263 struct file *rd_filp;
264
265 struct svc_rqst *rd_rqstp; /* response */
266 struct svc_fh * rd_fhp; /* response */
267};
268
269struct nfsd4_readdir {
270 u64 rd_cookie; /* request */
271 nfs4_verifier rd_verf; /* request */
272 u32 rd_dircount; /* request */
273 u32 rd_maxcount; /* request */
274 u32 rd_bmval[3]; /* request */
275 struct svc_rqst *rd_rqstp; /* response */
276 struct svc_fh * rd_fhp; /* response */
277
278 struct readdir_cd common;
279 __be32 * buffer;
280 int buflen;
281 __be32 * offset;
282};
283
284struct nfsd4_release_lockowner {
285 clientid_t rl_clientid;
286 struct xdr_netobj rl_owner;
287};
288struct nfsd4_readlink {
289 struct svc_rqst *rl_rqstp; /* request */
290 struct svc_fh * rl_fhp; /* request */
291};
292
293struct nfsd4_remove {
294 u32 rm_namelen; /* request */
295 char * rm_name; /* request */
296 struct nfsd4_change_info rm_cinfo; /* response */
297};
298
299struct nfsd4_rename {
300 u32 rn_snamelen; /* request */
301 char * rn_sname; /* request */
302 u32 rn_tnamelen; /* request */
303 char * rn_tname; /* request */
304 struct nfsd4_change_info rn_sinfo; /* response */
305 struct nfsd4_change_info rn_tinfo; /* response */
306};
307
308struct nfsd4_secinfo {
309 u32 si_namelen; /* request */
310 char *si_name; /* request */
311 struct svc_export *si_exp; /* response */
312};
313
314struct nfsd4_setattr {
315 stateid_t sa_stateid; /* request */
316 u32 sa_bmval[3]; /* request */
317 struct iattr sa_iattr; /* request */
318 struct nfs4_acl *sa_acl;
319};
320
321struct nfsd4_setclientid {
322 nfs4_verifier se_verf; /* request */
323 u32 se_namelen; /* request */
324 char * se_name; /* request */
325 u32 se_callback_prog; /* request */
326 u32 se_callback_netid_len; /* request */
327 char * se_callback_netid_val; /* request */
328 u32 se_callback_addr_len; /* request */
329 char * se_callback_addr_val; /* request */
330 u32 se_callback_ident; /* request */
331 clientid_t se_clientid; /* response */
332 nfs4_verifier se_confirm; /* response */
333};
334
335struct nfsd4_setclientid_confirm {
336 clientid_t sc_clientid;
337 nfs4_verifier sc_confirm;
338};
339
340/* also used for NVERIFY */
341struct nfsd4_verify {
342 u32 ve_bmval[3]; /* request */
343 u32 ve_attrlen; /* request */
344 char * ve_attrval; /* request */
345};
346
347struct nfsd4_write {
348 stateid_t wr_stateid; /* request */
349 u64 wr_offset; /* request */
350 u32 wr_stable_how; /* request */
351 u32 wr_buflen; /* request */
352 int wr_vlen;
353
354 u32 wr_bytes_written; /* response */
355 u32 wr_how_written; /* response */
356 nfs4_verifier wr_verifier; /* response */
357};
358
359struct nfsd4_exchange_id {
360 nfs4_verifier verifier;
361 struct xdr_netobj clname;
362 u32 flags;
363 clientid_t clientid;
364 u32 seqid;
365 int spa_how;
366};
367
368struct nfsd4_sequence {
369 struct nfs4_sessionid sessionid; /* request/response */
370 u32 seqid; /* request/response */
371 u32 slotid; /* request/response */
372 u32 maxslots; /* request/response */
373 u32 cachethis; /* request */
374#if 0
375 u32 target_maxslots; /* response */
376 u32 status_flags; /* response */
377#endif /* not yet */
378};
379
380struct nfsd4_destroy_session {
381 struct nfs4_sessionid sessionid;
382};
383
384struct nfsd4_op {
385 int opnum;
386 __be32 status;
387 union {
388 struct nfsd4_access access;
389 struct nfsd4_close close;
390 struct nfsd4_commit commit;
391 struct nfsd4_create create;
392 struct nfsd4_delegreturn delegreturn;
393 struct nfsd4_getattr getattr;
394 struct svc_fh * getfh;
395 struct nfsd4_link link;
396 struct nfsd4_lock lock;
397 struct nfsd4_lockt lockt;
398 struct nfsd4_locku locku;
399 struct nfsd4_lookup lookup;
400 struct nfsd4_verify nverify;
401 struct nfsd4_open open;
402 struct nfsd4_open_confirm open_confirm;
403 struct nfsd4_open_downgrade open_downgrade;
404 struct nfsd4_putfh putfh;
405 struct nfsd4_read read;
406 struct nfsd4_readdir readdir;
407 struct nfsd4_readlink readlink;
408 struct nfsd4_remove remove;
409 struct nfsd4_rename rename;
410 clientid_t renew;
411 struct nfsd4_secinfo secinfo;
412 struct nfsd4_setattr setattr;
413 struct nfsd4_setclientid setclientid;
414 struct nfsd4_setclientid_confirm setclientid_confirm;
415 struct nfsd4_verify verify;
416 struct nfsd4_write write;
417 struct nfsd4_release_lockowner release_lockowner;
418
419 /* NFSv4.1 */
420 struct nfsd4_exchange_id exchange_id;
421 struct nfsd4_create_session create_session;
422 struct nfsd4_destroy_session destroy_session;
423 struct nfsd4_sequence sequence;
424 } u;
425 struct nfs4_replay * replay;
426};
427
428struct nfsd4_compoundargs {
429 /* scratch variables for XDR decode */
430 __be32 * p;
431 __be32 * end;
432 struct page ** pagelist;
433 int pagelen;
434 __be32 tmp[8];
435 __be32 * tmpp;
436 struct tmpbuf {
437 struct tmpbuf *next;
438 void (*release)(const void *);
439 void *buf;
440 } *to_free;
441
442 struct svc_rqst *rqstp;
443
444 u32 taglen;
445 char * tag;
446 u32 minorversion;
447 u32 opcnt;
448 struct nfsd4_op *ops;
449 struct nfsd4_op iops[8];
450};
451
452struct nfsd4_compoundres {
453 /* scratch variables for XDR encode */
454 __be32 * p;
455 __be32 * end;
456 struct xdr_buf * xbuf;
457 struct svc_rqst * rqstp;
458
459 u32 taglen;
460 char * tag;
461 u32 opcnt;
462 __be32 * tagp; /* tag, opcount encode location */
463 struct nfsd4_compound_state cstate;
464};
465
466static inline bool nfsd4_is_solo_sequence(struct nfsd4_compoundres *resp)
467{
468 struct nfsd4_compoundargs *args = resp->rqstp->rq_argp;
469 return resp->opcnt == 1 && args->ops[0].opnum == OP_SEQUENCE;
470}
471
472static inline bool nfsd4_not_cached(struct nfsd4_compoundres *resp)
473{
474 return !resp->cstate.slot->sl_cachethis || nfsd4_is_solo_sequence(resp);
475}
476
477#define NFS4_SVC_XDRSIZE sizeof(struct nfsd4_compoundargs)
478
479static inline void
480set_change_info(struct nfsd4_change_info *cinfo, struct svc_fh *fhp)
481{
482 BUG_ON(!fhp->fh_pre_saved || !fhp->fh_post_saved);
483 cinfo->atomic = 1;
484 cinfo->change_supported = IS_I_VERSION(fhp->fh_dentry->d_inode);
485 if (cinfo->change_supported) {
486 cinfo->before_change = fhp->fh_pre_change;
487 cinfo->after_change = fhp->fh_post_change;
488 } else {
489 cinfo->before_ctime_sec = fhp->fh_pre_ctime.tv_sec;
490 cinfo->before_ctime_nsec = fhp->fh_pre_ctime.tv_nsec;
491 cinfo->after_ctime_sec = fhp->fh_post_attr.ctime.tv_sec;
492 cinfo->after_ctime_nsec = fhp->fh_post_attr.ctime.tv_nsec;
493 }
494}
495
496int nfs4svc_encode_voidres(struct svc_rqst *, __be32 *, void *);
497int nfs4svc_decode_compoundargs(struct svc_rqst *, __be32 *,
498 struct nfsd4_compoundargs *);
499int nfs4svc_encode_compoundres(struct svc_rqst *, __be32 *,
500 struct nfsd4_compoundres *);
501void nfsd4_encode_operation(struct nfsd4_compoundres *, struct nfsd4_op *);
502void nfsd4_encode_replay(struct nfsd4_compoundres *resp, struct nfsd4_op *op);
503__be32 nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
504 struct dentry *dentry, __be32 *buffer, int *countp,
505 u32 *bmval, struct svc_rqst *, int ignore_crossmnt);
506extern __be32 nfsd4_setclientid(struct svc_rqst *rqstp,
507 struct nfsd4_compound_state *,
508 struct nfsd4_setclientid *setclid);
509extern __be32 nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
510 struct nfsd4_compound_state *,
511 struct nfsd4_setclientid_confirm *setclientid_confirm);
512extern void nfsd4_store_cache_entry(struct nfsd4_compoundres *resp);
513extern __be32 nfsd4_replay_cache_entry(struct nfsd4_compoundres *resp,
514 struct nfsd4_sequence *seq);
515extern __be32 nfsd4_exchange_id(struct svc_rqst *rqstp,
516 struct nfsd4_compound_state *,
517struct nfsd4_exchange_id *);
518 extern __be32 nfsd4_create_session(struct svc_rqst *,
519 struct nfsd4_compound_state *,
520 struct nfsd4_create_session *);
521extern __be32 nfsd4_sequence(struct svc_rqst *,
522 struct nfsd4_compound_state *,
523 struct nfsd4_sequence *);
524extern __be32 nfsd4_destroy_session(struct svc_rqst *,
525 struct nfsd4_compound_state *,
526 struct nfsd4_destroy_session *);
527extern __be32 nfsd4_process_open1(struct nfsd4_compound_state *,
528 struct nfsd4_open *open);
529extern __be32 nfsd4_process_open2(struct svc_rqst *rqstp,
530 struct svc_fh *current_fh, struct nfsd4_open *open);
531extern __be32 nfsd4_open_confirm(struct svc_rqst *rqstp,
532 struct nfsd4_compound_state *, struct nfsd4_open_confirm *oc);
533extern __be32 nfsd4_close(struct svc_rqst *rqstp,
534 struct nfsd4_compound_state *,
535 struct nfsd4_close *close);
536extern __be32 nfsd4_open_downgrade(struct svc_rqst *rqstp,
537 struct nfsd4_compound_state *,
538 struct nfsd4_open_downgrade *od);
539extern __be32 nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
540 struct nfsd4_lock *lock);
541extern __be32 nfsd4_lockt(struct svc_rqst *rqstp,
542 struct nfsd4_compound_state *,
543 struct nfsd4_lockt *lockt);
544extern __be32 nfsd4_locku(struct svc_rqst *rqstp,
545 struct nfsd4_compound_state *,
546 struct nfsd4_locku *locku);
547extern __be32
548nfsd4_release_lockowner(struct svc_rqst *rqstp,
549 struct nfsd4_compound_state *,
550 struct nfsd4_release_lockowner *rlockowner);
551extern void nfsd4_release_compoundargs(struct nfsd4_compoundargs *);
552extern __be32 nfsd4_delegreturn(struct svc_rqst *rqstp,
553 struct nfsd4_compound_state *, struct nfsd4_delegreturn *dr);
554extern __be32 nfsd4_renew(struct svc_rqst *rqstp,
555 struct nfsd4_compound_state *, clientid_t *clid);
556#endif
557
558/*
559 * Local variables:
560 * c-basic-offset: 8
561 * End:
562 */
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-31 10:06:07 -0500