2 * Server-side types for NFSv4.
4 * Copyright (c) 2002 The Regents of the University of Michigan.
7 * Kendrick Smith <kmsmith@umich.edu>
8 * Andy Adamson <andros@umich.edu>
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
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.
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.
37 #ifndef _LINUX_NFSD_XDR4_H
38 #define _LINUX_NFSD_XDR4_H
43 #define NFSD4_MAX_TAGLEN 128
44 #define XDR_LEN(n) (((n) + 3) & ~3)
46 struct 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
;
59 static inline bool nfsd4_has_session(struct nfsd4_compound_state
*cs
)
61 return cs
->slot
!= NULL
;
64 struct nfsd4_change_info
{
66 bool change_supported
;
68 u32 before_ctime_nsec
;
76 u32 ac_req_access
; /* request */
77 u32 ac_supported
; /* response */
78 u32 ac_resp_access
; /* response */
82 u32 cl_seqid
; /* request */
83 stateid_t cl_stateid
; /* request+response */
84 struct nfs4_stateowner
* cl_stateowner
; /* response */
88 u64 co_offset
; /* request */
89 u32 co_count
; /* request */
90 nfs4_verifier co_verf
; /* response */
94 u32 cr_namelen
; /* request */
95 char * cr_name
; /* request */
96 u32 cr_type
; /* request */
105 } dev
; /* NF4BLK, NF4CHR */
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
;
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
117 struct nfsd4_delegreturn
{
118 stateid_t dr_stateid
;
121 struct nfsd4_getattr
{
122 u32 ga_bmval
[3]; /* request */
123 struct svc_fh
*ga_fhp
; /* response */
127 u32 li_namelen
; /* request */
128 char * li_name
; /* request */
129 struct nfsd4_change_info li_cinfo
; /* response */
132 struct nfsd4_lock_denied
{
133 clientid_t ld_clientid
;
134 struct nfs4_stateowner
*ld_sop
;
143 u32 lk_reclaim
; /* boolean */
150 stateid_t open_stateid
;
153 struct xdr_netobj owner
;
156 stateid_t lock_stateid
;
166 struct nfsd4_lock_denied denied
;
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
;
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
180 #define lk_rflags u.ok.rflags
181 #define lk_resp_stateid u.ok.stateid
182 #define lk_denied u.denied
187 clientid_t lt_clientid
;
188 struct xdr_netobj lt_owner
;
191 struct nfs4_stateowner
* lt_stateowner
;
192 struct nfsd4_lock_denied lt_denied
;
199 stateid_t lu_stateid
;
202 struct nfs4_stateowner
*lu_stateowner
;
206 struct nfsd4_lookup
{
207 u32 lo_len
; /* request */
208 char * lo_name
; /* request */
212 u32 pf_fhlen
; /* request */
213 char *pf_fhval
; /* request */
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
;
239 #define op_iattr iattr
242 struct 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 */
249 struct nfsd4_open_downgrade
{
250 stateid_t od_stateid
;
254 struct nfs4_stateowner
*od_stateowner
;
259 stateid_t rd_stateid
; /* request */
260 u64 rd_offset
; /* request */
261 u32 rd_length
; /* request */
263 struct file
*rd_filp
;
265 struct svc_rqst
*rd_rqstp
; /* response */
266 struct svc_fh
* rd_fhp
; /* response */
269 struct 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 */
278 struct readdir_cd common
;
284 struct nfsd4_release_lockowner
{
285 clientid_t rl_clientid
;
286 struct xdr_netobj rl_owner
;
288 struct nfsd4_readlink
{
289 struct svc_rqst
*rl_rqstp
; /* request */
290 struct svc_fh
* rl_fhp
; /* request */
293 struct nfsd4_remove
{
294 u32 rm_namelen
; /* request */
295 char * rm_name
; /* request */
296 struct nfsd4_change_info rm_cinfo
; /* response */
299 struct 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 */
308 struct nfsd4_secinfo
{
309 u32 si_namelen
; /* request */
310 char *si_name
; /* request */
311 struct svc_export
*si_exp
; /* response */
314 struct nfsd4_secinfo_no_name
{
315 u32 sin_style
; /* request */
316 struct svc_export
*sin_exp
; /* response */
319 struct nfsd4_setattr
{
320 stateid_t sa_stateid
; /* request */
321 u32 sa_bmval
[3]; /* request */
322 struct iattr sa_iattr
; /* request */
323 struct nfs4_acl
*sa_acl
;
326 struct nfsd4_setclientid
{
327 nfs4_verifier se_verf
; /* request */
328 u32 se_namelen
; /* request */
329 char * se_name
; /* request */
330 u32 se_callback_prog
; /* request */
331 u32 se_callback_netid_len
; /* request */
332 char * se_callback_netid_val
; /* request */
333 u32 se_callback_addr_len
; /* request */
334 char * se_callback_addr_val
; /* request */
335 u32 se_callback_ident
; /* request */
336 clientid_t se_clientid
; /* response */
337 nfs4_verifier se_confirm
; /* response */
340 struct nfsd4_setclientid_confirm
{
341 clientid_t sc_clientid
;
342 nfs4_verifier sc_confirm
;
345 struct nfsd4_saved_compoundargs
{
349 struct page
**pagelist
;
352 struct nfsd4_test_stateid
{
355 struct nfsd4_compoundargs
*ts_saved_args
;
356 struct nfsd4_saved_compoundargs ts_savedp
;
359 struct nfsd4_free_stateid
{
360 stateid_t fr_stateid
; /* request */
361 __be32 fr_status
; /* response */
364 /* also used for NVERIFY */
365 struct nfsd4_verify
{
366 u32 ve_bmval
[3]; /* request */
367 u32 ve_attrlen
; /* request */
368 char * ve_attrval
; /* request */
372 stateid_t wr_stateid
; /* request */
373 u64 wr_offset
; /* request */
374 u32 wr_stable_how
; /* request */
375 u32 wr_buflen
; /* request */
378 u32 wr_bytes_written
; /* response */
379 u32 wr_how_written
; /* response */
380 nfs4_verifier wr_verifier
; /* response */
383 struct nfsd4_exchange_id
{
384 nfs4_verifier verifier
;
385 struct xdr_netobj clname
;
392 struct nfsd4_sequence
{
393 struct nfs4_sessionid sessionid
; /* request/response */
394 u32 seqid
; /* request/response */
395 u32 slotid
; /* request/response */
396 u32 maxslots
; /* request/response */
397 u32 cachethis
; /* request */
399 u32 target_maxslots
; /* response */
401 u32 status_flags
; /* response */
404 struct nfsd4_destroy_session
{
405 struct nfs4_sessionid sessionid
;
408 struct nfsd4_reclaim_complete
{
416 struct nfsd4_access access
;
417 struct nfsd4_close close
;
418 struct nfsd4_commit commit
;
419 struct nfsd4_create create
;
420 struct nfsd4_delegreturn delegreturn
;
421 struct nfsd4_getattr getattr
;
422 struct svc_fh
* getfh
;
423 struct nfsd4_link link
;
424 struct nfsd4_lock lock
;
425 struct nfsd4_lockt lockt
;
426 struct nfsd4_locku locku
;
427 struct nfsd4_lookup lookup
;
428 struct nfsd4_verify nverify
;
429 struct nfsd4_open open
;
430 struct nfsd4_open_confirm open_confirm
;
431 struct nfsd4_open_downgrade open_downgrade
;
432 struct nfsd4_putfh putfh
;
433 struct nfsd4_read read
;
434 struct nfsd4_readdir readdir
;
435 struct nfsd4_readlink readlink
;
436 struct nfsd4_remove remove
;
437 struct nfsd4_rename rename
;
439 struct nfsd4_secinfo secinfo
;
440 struct nfsd4_setattr setattr
;
441 struct nfsd4_setclientid setclientid
;
442 struct nfsd4_setclientid_confirm setclientid_confirm
;
443 struct nfsd4_verify verify
;
444 struct nfsd4_write write
;
445 struct nfsd4_release_lockowner release_lockowner
;
448 struct nfsd4_exchange_id exchange_id
;
449 struct nfsd4_bind_conn_to_session bind_conn_to_session
;
450 struct nfsd4_create_session create_session
;
451 struct nfsd4_destroy_session destroy_session
;
452 struct nfsd4_sequence sequence
;
453 struct nfsd4_reclaim_complete reclaim_complete
;
454 struct nfsd4_test_stateid test_stateid
;
455 struct nfsd4_free_stateid free_stateid
;
457 struct nfs4_replay
* replay
;
460 bool nfsd4_cache_this_op(struct nfsd4_op
*);
462 struct nfsd4_compoundargs
{
463 /* scratch variables for XDR decode */
466 struct page
** pagelist
;
472 void (*release
)(const void *);
476 struct svc_rqst
*rqstp
;
482 struct nfsd4_op
*ops
;
483 struct nfsd4_op iops
[8];
487 struct nfsd4_compoundres
{
488 /* scratch variables for XDR encode */
491 struct xdr_buf
* xbuf
;
492 struct svc_rqst
* rqstp
;
497 __be32
* tagp
; /* tag, opcount encode location */
498 struct nfsd4_compound_state cstate
;
501 static inline bool nfsd4_is_solo_sequence(struct nfsd4_compoundres
*resp
)
503 struct nfsd4_compoundargs
*args
= resp
->rqstp
->rq_argp
;
504 return resp
->opcnt
== 1 && args
->ops
[0].opnum
== OP_SEQUENCE
;
507 static inline bool nfsd4_not_cached(struct nfsd4_compoundres
*resp
)
509 return !resp
->cstate
.slot
->sl_cachethis
|| nfsd4_is_solo_sequence(resp
);
512 #define NFS4_SVC_XDRSIZE sizeof(struct nfsd4_compoundargs)
515 set_change_info(struct nfsd4_change_info
*cinfo
, struct svc_fh
*fhp
)
517 BUG_ON(!fhp
->fh_pre_saved
);
518 cinfo
->atomic
= fhp
->fh_post_saved
;
519 cinfo
->change_supported
= IS_I_VERSION(fhp
->fh_dentry
->d_inode
);
521 cinfo
->before_change
= fhp
->fh_pre_change
;
522 cinfo
->after_change
= fhp
->fh_post_change
;
523 cinfo
->before_ctime_sec
= fhp
->fh_pre_ctime
.tv_sec
;
524 cinfo
->before_ctime_nsec
= fhp
->fh_pre_ctime
.tv_nsec
;
525 cinfo
->after_ctime_sec
= fhp
->fh_post_attr
.ctime
.tv_sec
;
526 cinfo
->after_ctime_nsec
= fhp
->fh_post_attr
.ctime
.tv_nsec
;
530 int nfs4svc_encode_voidres(struct svc_rqst
*, __be32
*, void *);
531 int nfs4svc_decode_compoundargs(struct svc_rqst
*, __be32
*,
532 struct nfsd4_compoundargs
*);
533 int nfs4svc_encode_compoundres(struct svc_rqst
*, __be32
*,
534 struct nfsd4_compoundres
*);
535 void nfsd4_encode_operation(struct nfsd4_compoundres
*, struct nfsd4_op
*);
536 void nfsd4_encode_replay(struct nfsd4_compoundres
*resp
, struct nfsd4_op
*op
);
537 __be32
nfsd4_encode_fattr(struct svc_fh
*fhp
, struct svc_export
*exp
,
538 struct dentry
*dentry
, __be32
*buffer
, int *countp
,
539 u32
*bmval
, struct svc_rqst
*, int ignore_crossmnt
);
540 extern __be32
nfsd4_setclientid(struct svc_rqst
*rqstp
,
541 struct nfsd4_compound_state
*,
542 struct nfsd4_setclientid
*setclid
);
543 extern __be32
nfsd4_setclientid_confirm(struct svc_rqst
*rqstp
,
544 struct nfsd4_compound_state
*,
545 struct nfsd4_setclientid_confirm
*setclientid_confirm
);
546 extern void nfsd4_store_cache_entry(struct nfsd4_compoundres
*resp
);
547 extern __be32
nfsd4_replay_cache_entry(struct nfsd4_compoundres
*resp
,
548 struct nfsd4_sequence
*seq
);
549 extern __be32
nfsd4_exchange_id(struct svc_rqst
*rqstp
,
550 struct nfsd4_compound_state
*, struct nfsd4_exchange_id
*);
551 extern __be32
nfsd4_bind_conn_to_session(struct svc_rqst
*, struct nfsd4_compound_state
*, struct nfsd4_bind_conn_to_session
*);
552 extern __be32
nfsd4_create_session(struct svc_rqst
*,
553 struct nfsd4_compound_state
*,
554 struct nfsd4_create_session
*);
555 extern __be32
nfsd4_sequence(struct svc_rqst
*,
556 struct nfsd4_compound_state
*,
557 struct nfsd4_sequence
*);
558 extern __be32
nfsd4_destroy_session(struct svc_rqst
*,
559 struct nfsd4_compound_state
*,
560 struct nfsd4_destroy_session
*);
561 __be32
nfsd4_reclaim_complete(struct svc_rqst
*, struct nfsd4_compound_state
*, struct nfsd4_reclaim_complete
*);
562 extern __be32
nfsd4_process_open1(struct nfsd4_compound_state
*,
563 struct nfsd4_open
*open
);
564 extern __be32
nfsd4_process_open2(struct svc_rqst
*rqstp
,
565 struct svc_fh
*current_fh
, struct nfsd4_open
*open
);
566 extern __be32
nfsd4_open_confirm(struct svc_rqst
*rqstp
,
567 struct nfsd4_compound_state
*, struct nfsd4_open_confirm
*oc
);
568 extern __be32
nfsd4_close(struct svc_rqst
*rqstp
,
569 struct nfsd4_compound_state
*,
570 struct nfsd4_close
*close
);
571 extern __be32
nfsd4_open_downgrade(struct svc_rqst
*rqstp
,
572 struct nfsd4_compound_state
*,
573 struct nfsd4_open_downgrade
*od
);
574 extern __be32
nfsd4_lock(struct svc_rqst
*rqstp
, struct nfsd4_compound_state
*,
575 struct nfsd4_lock
*lock
);
576 extern __be32
nfsd4_lockt(struct svc_rqst
*rqstp
,
577 struct nfsd4_compound_state
*,
578 struct nfsd4_lockt
*lockt
);
579 extern __be32
nfsd4_locku(struct svc_rqst
*rqstp
,
580 struct nfsd4_compound_state
*,
581 struct nfsd4_locku
*locku
);
583 nfsd4_release_lockowner(struct svc_rqst
*rqstp
,
584 struct nfsd4_compound_state
*,
585 struct nfsd4_release_lockowner
*rlockowner
);
586 extern int nfsd4_release_compoundargs(void *rq
, __be32
*p
, void *resp
);
587 extern __be32
nfsd4_delegreturn(struct svc_rqst
*rqstp
,
588 struct nfsd4_compound_state
*, struct nfsd4_delegreturn
*dr
);
589 extern __be32
nfsd4_renew(struct svc_rqst
*rqstp
,
590 struct nfsd4_compound_state
*, clientid_t
*clid
);
591 extern __be32
nfsd4_test_stateid(struct svc_rqst
*rqstp
,
592 struct nfsd4_compound_state
*, struct nfsd4_test_stateid
*test_stateid
);
593 extern __be32
nfsd4_free_stateid(struct svc_rqst
*rqstp
,
594 struct nfsd4_compound_state
*, struct nfsd4_free_stateid
*free_stateid
);