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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
46#define CURRENT_STATE_ID_FLAG (1<<0)
47#define SAVED_STATE_ID_FLAG (1<<1)
48
49#define SET_CSTATE_FLAG(c, f) ((c)->sid_flags |= (f))
50#define HAS_CSTATE_FLAG(c, f) ((c)->sid_flags & (f))
51#define CLEAR_CSTATE_FLAG(c, f) ((c)->sid_flags &= ~(f))
52
53struct nfsd4_compound_state {
54 struct svc_fh current_fh;
55 struct svc_fh save_fh;
56 struct nfs4_stateowner *replay_owner;
57 struct nfs4_client *clp;
58
59 struct nfsd4_session *session;
60 struct nfsd4_slot *slot;
61 int data_offset;
62 bool spo_must_allowed;
63 size_t iovlen;
64 u32 minorversion;
65 __be32 status;
66 stateid_t current_stateid;
67 stateid_t save_stateid;
68
69 u32 sid_flags;
70};
71
72static inline bool nfsd4_has_session(struct nfsd4_compound_state *cs)
73{
74 return cs->slot != NULL;
75}
76
77struct nfsd4_change_info {
78 u32 atomic;
79 bool change_supported;
80 u32 before_ctime_sec;
81 u32 before_ctime_nsec;
82 u64 before_change;
83 u32 after_ctime_sec;
84 u32 after_ctime_nsec;
85 u64 after_change;
86};
87
88struct nfsd4_access {
89 u32 ac_req_access;
90 u32 ac_supported;
91 u32 ac_resp_access;
92};
93
94struct nfsd4_close {
95 u32 cl_seqid;
96 stateid_t cl_stateid;
97};
98
99struct nfsd4_commit {
100 u64 co_offset;
101 u32 co_count;
102 nfs4_verifier co_verf;
103};
104
105struct nfsd4_create {
106 u32 cr_namelen;
107 char * cr_name;
108 u32 cr_type;
109 union {
110 struct {
111 u32 datalen;
112 char *data;
113 struct kvec first;
114 } link;
115 struct {
116 u32 specdata1;
117 u32 specdata2;
118 } dev;
119 } u;
120 u32 cr_bmval[3];
121 struct iattr cr_iattr;
122 int cr_umask;
123 struct nfsd4_change_info cr_cinfo;
124 struct nfs4_acl *cr_acl;
125 struct xdr_netobj cr_label;
126};
127#define cr_datalen u.link.datalen
128#define cr_data u.link.data
129#define cr_first u.link.first
130#define cr_specdata1 u.dev.specdata1
131#define cr_specdata2 u.dev.specdata2
132
133struct nfsd4_delegreturn {
134 stateid_t dr_stateid;
135};
136
137struct nfsd4_getattr {
138 u32 ga_bmval[3];
139 struct svc_fh *ga_fhp;
140};
141
142struct nfsd4_link {
143 u32 li_namelen;
144 char * li_name;
145 struct nfsd4_change_info li_cinfo;
146};
147
148struct nfsd4_lock_denied {
149 clientid_t ld_clientid;
150 struct xdr_netobj ld_owner;
151 u64 ld_start;
152 u64 ld_length;
153 u32 ld_type;
154};
155
156struct nfsd4_lock {
157
158 u32 lk_type;
159 u32 lk_reclaim;
160 u64 lk_offset;
161 u64 lk_length;
162 u32 lk_is_new;
163 union {
164 struct {
165 u32 open_seqid;
166 stateid_t open_stateid;
167 u32 lock_seqid;
168 clientid_t clientid;
169 struct xdr_netobj owner;
170 } new;
171 struct {
172 stateid_t lock_stateid;
173 u32 lock_seqid;
174 } old;
175 } v;
176
177
178 union {
179 struct {
180 stateid_t stateid;
181 } ok;
182 struct nfsd4_lock_denied denied;
183 } u;
184};
185#define lk_new_open_seqid v.new.open_seqid
186#define lk_new_open_stateid v.new.open_stateid
187#define lk_new_lock_seqid v.new.lock_seqid
188#define lk_new_clientid v.new.clientid
189#define lk_new_owner v.new.owner
190#define lk_old_lock_stateid v.old.lock_stateid
191#define lk_old_lock_seqid v.old.lock_seqid
192
193#define lk_resp_stateid u.ok.stateid
194#define lk_denied u.denied
195
196
197struct nfsd4_lockt {
198 u32 lt_type;
199 clientid_t lt_clientid;
200 struct xdr_netobj lt_owner;
201 u64 lt_offset;
202 u64 lt_length;
203 struct nfsd4_lock_denied lt_denied;
204};
205
206
207struct nfsd4_locku {
208 u32 lu_type;
209 u32 lu_seqid;
210 stateid_t lu_stateid;
211 u64 lu_offset;
212 u64 lu_length;
213};
214
215
216struct nfsd4_lookup {
217 u32 lo_len;
218 char * lo_name;
219};
220
221struct nfsd4_putfh {
222 u32 pf_fhlen;
223 char *pf_fhval;
224 bool no_verify;
225};
226
227struct nfsd4_open {
228 u32 op_claim_type;
229 struct xdr_netobj op_fname;
230 u32 op_delegate_type;
231 stateid_t op_delegate_stateid;
232 u32 op_why_no_deleg;
233 u32 op_create;
234 u32 op_createmode;
235 int op_umask;
236 u32 op_bmval[3];
237 struct iattr op_iattr;
238 nfs4_verifier op_verf __attribute__((aligned(32)));
239
240 clientid_t op_clientid;
241 struct xdr_netobj op_owner;
242 u32 op_seqid;
243 u32 op_share_access;
244 u32 op_share_deny;
245 u32 op_deleg_want;
246 stateid_t op_stateid;
247 __be32 op_xdr_error;
248 u32 op_recall;
249 struct nfsd4_change_info op_cinfo;
250 u32 op_rflags;
251 bool op_truncate;
252 bool op_created;
253 struct nfs4_openowner *op_openowner;
254 struct nfs4_file *op_file;
255 struct nfs4_ol_stateid *op_stp;
256 struct nfs4_clnt_odstate *op_odstate;
257 struct nfs4_acl *op_acl;
258 struct xdr_netobj op_label;
259};
260
261struct nfsd4_open_confirm {
262 stateid_t oc_req_stateid ;
263 u32 oc_seqid ;
264 stateid_t oc_resp_stateid ;
265};
266
267struct nfsd4_open_downgrade {
268 stateid_t od_stateid;
269 u32 od_seqid;
270 u32 od_share_access;
271 u32 od_deleg_want;
272 u32 od_share_deny;
273};
274
275
276struct nfsd4_read {
277 stateid_t rd_stateid;
278 u64 rd_offset;
279 u32 rd_length;
280 int rd_vlen;
281 struct nfsd_file *rd_nf;
282
283 struct svc_rqst *rd_rqstp;
284 struct svc_fh *rd_fhp;
285};
286
287struct nfsd4_readdir {
288 u64 rd_cookie;
289 nfs4_verifier rd_verf;
290 u32 rd_dircount;
291 u32 rd_maxcount;
292 u32 rd_bmval[3];
293 struct svc_rqst *rd_rqstp;
294 struct svc_fh * rd_fhp;
295
296 struct readdir_cd common;
297 struct xdr_stream *xdr;
298 int cookie_offset;
299};
300
301struct nfsd4_release_lockowner {
302 clientid_t rl_clientid;
303 struct xdr_netobj rl_owner;
304};
305struct nfsd4_readlink {
306 struct svc_rqst *rl_rqstp;
307 struct svc_fh * rl_fhp;
308};
309
310struct nfsd4_remove {
311 u32 rm_namelen;
312 char * rm_name;
313 struct nfsd4_change_info rm_cinfo;
314};
315
316struct nfsd4_rename {
317 u32 rn_snamelen;
318 char * rn_sname;
319 u32 rn_tnamelen;
320 char * rn_tname;
321 struct nfsd4_change_info rn_sinfo;
322 struct nfsd4_change_info rn_tinfo;
323};
324
325struct nfsd4_secinfo {
326 u32 si_namelen;
327 char *si_name;
328 struct svc_export *si_exp;
329};
330
331struct nfsd4_secinfo_no_name {
332 u32 sin_style;
333 struct svc_export *sin_exp;
334};
335
336struct nfsd4_setattr {
337 stateid_t sa_stateid;
338 u32 sa_bmval[3];
339 struct iattr sa_iattr;
340 struct nfs4_acl *sa_acl;
341 struct xdr_netobj sa_label;
342};
343
344struct nfsd4_setclientid {
345 nfs4_verifier se_verf;
346 struct xdr_netobj se_name;
347 u32 se_callback_prog;
348 u32 se_callback_netid_len;
349 char * se_callback_netid_val;
350 u32 se_callback_addr_len;
351 char * se_callback_addr_val;
352 u32 se_callback_ident;
353 clientid_t se_clientid;
354 nfs4_verifier se_confirm;
355};
356
357struct nfsd4_setclientid_confirm {
358 clientid_t sc_clientid;
359 nfs4_verifier sc_confirm;
360};
361
362struct nfsd4_saved_compoundargs {
363 __be32 *p;
364 __be32 *end;
365 int pagelen;
366 struct page **pagelist;
367};
368
369struct nfsd4_test_stateid_id {
370 __be32 ts_id_status;
371 stateid_t ts_id_stateid;
372 struct list_head ts_id_list;
373};
374
375struct nfsd4_test_stateid {
376 u32 ts_num_ids;
377 struct list_head ts_stateid_list;
378};
379
380struct nfsd4_free_stateid {
381 stateid_t fr_stateid;
382};
383
384
385struct nfsd4_verify {
386 u32 ve_bmval[3];
387 u32 ve_attrlen;
388 char * ve_attrval;
389};
390
391struct nfsd4_write {
392 stateid_t wr_stateid;
393 u64 wr_offset;
394 u32 wr_stable_how;
395 u32 wr_buflen;
396 struct kvec wr_head;
397 struct page ** wr_pagelist;
398
399 u32 wr_bytes_written;
400 u32 wr_how_written;
401 nfs4_verifier wr_verifier;
402};
403
404struct nfsd4_exchange_id {
405 nfs4_verifier verifier;
406 struct xdr_netobj clname;
407 u32 flags;
408 clientid_t clientid;
409 u32 seqid;
410 int spa_how;
411 u32 spo_must_enforce[3];
412 u32 spo_must_allow[3];
413 struct xdr_netobj nii_domain;
414 struct xdr_netobj nii_name;
415 struct timespec64 nii_time;
416};
417
418struct nfsd4_sequence {
419 struct nfs4_sessionid sessionid;
420 u32 seqid;
421 u32 slotid;
422 u32 maxslots;
423 u32 cachethis;
424#if 0
425 u32 target_maxslots;
426#endif
427 u32 status_flags;
428};
429
430struct nfsd4_destroy_session {
431 struct nfs4_sessionid sessionid;
432};
433
434struct nfsd4_destroy_clientid {
435 clientid_t clientid;
436};
437
438struct nfsd4_reclaim_complete {
439 u32 rca_one_fs;
440};
441
442struct nfsd4_deviceid {
443 u64 fsid_idx;
444 u32 generation;
445 u32 pad;
446};
447
448struct nfsd4_layout_seg {
449 u32 iomode;
450 u64 offset;
451 u64 length;
452};
453
454struct nfsd4_getdeviceinfo {
455 struct nfsd4_deviceid gd_devid;
456 u32 gd_layout_type;
457 u32 gd_maxcount;
458 u32 gd_notify_types;
459 void *gd_device;
460};
461
462struct nfsd4_layoutget {
463 u64 lg_minlength;
464 u32 lg_signal;
465 u32 lg_layout_type;
466 u32 lg_maxcount;
467 stateid_t lg_sid;
468 struct nfsd4_layout_seg lg_seg;
469 void *lg_content;
470};
471
472struct nfsd4_layoutcommit {
473 stateid_t lc_sid;
474 struct nfsd4_layout_seg lc_seg;
475 u32 lc_reclaim;
476 u32 lc_newoffset;
477 u64 lc_last_wr;
478 struct timespec64 lc_mtime;
479 u32 lc_layout_type;
480 u32 lc_up_len;
481 void *lc_up_layout;
482 u32 lc_size_chg;
483 u64 lc_newsize;
484};
485
486struct nfsd4_layoutreturn {
487 u32 lr_return_type;
488 u32 lr_layout_type;
489 struct nfsd4_layout_seg lr_seg;
490 u32 lr_reclaim;
491 u32 lrf_body_len;
492 void *lrf_body;
493 stateid_t lr_sid;
494 u32 lrs_present;
495};
496
497struct nfsd4_fallocate {
498
499 stateid_t falloc_stateid;
500 loff_t falloc_offset;
501 u64 falloc_length;
502};
503
504struct nfsd4_clone {
505
506 stateid_t cl_src_stateid;
507 stateid_t cl_dst_stateid;
508 u64 cl_src_pos;
509 u64 cl_dst_pos;
510 u64 cl_count;
511};
512
513struct nfsd42_write_res {
514 u64 wr_bytes_written;
515 u32 wr_stable_how;
516 nfs4_verifier wr_verifier;
517 stateid_t cb_stateid;
518};
519
520struct nfsd4_copy {
521
522 stateid_t cp_src_stateid;
523 stateid_t cp_dst_stateid;
524 u64 cp_src_pos;
525 u64 cp_dst_pos;
526 u64 cp_count;
527 struct nl4_server cp_src;
528 bool cp_intra;
529
530
531 bool cp_synchronous;
532
533
534 struct nfsd42_write_res cp_res;
535
536
537 struct nfsd4_callback cp_cb;
538 __be32 nfserr;
539 struct knfsd_fh fh;
540
541 struct nfs4_client *cp_clp;
542
543 struct nfsd_file *nf_src;
544 struct nfsd_file *nf_dst;
545
546 copy_stateid_t cp_stateid;
547
548 struct list_head copies;
549 struct task_struct *copy_task;
550 refcount_t refcount;
551 bool stopped;
552
553 struct vfsmount *ss_mnt;
554 struct nfs_fh c_fh;
555 nfs4_stateid stateid;
556};
557extern bool inter_copy_offload_enable;
558
559struct nfsd4_seek {
560
561 stateid_t seek_stateid;
562 loff_t seek_offset;
563 u32 seek_whence;
564
565
566 u32 seek_eof;
567 loff_t seek_pos;
568};
569
570struct nfsd4_offload_status {
571
572 stateid_t stateid;
573
574
575 u64 count;
576 u32 status;
577};
578
579struct nfsd4_copy_notify {
580
581 stateid_t cpn_src_stateid;
582 struct nl4_server cpn_dst;
583
584
585 stateid_t cpn_cnr_stateid;
586 u64 cpn_sec;
587 u32 cpn_nsec;
588 struct nl4_server cpn_src;
589};
590
591struct nfsd4_op {
592 int opnum;
593 const struct nfsd4_operation * opdesc;
594 __be32 status;
595 union nfsd4_op_u {
596 struct nfsd4_access access;
597 struct nfsd4_close close;
598 struct nfsd4_commit commit;
599 struct nfsd4_create create;
600 struct nfsd4_delegreturn delegreturn;
601 struct nfsd4_getattr getattr;
602 struct svc_fh * getfh;
603 struct nfsd4_link link;
604 struct nfsd4_lock lock;
605 struct nfsd4_lockt lockt;
606 struct nfsd4_locku locku;
607 struct nfsd4_lookup lookup;
608 struct nfsd4_verify nverify;
609 struct nfsd4_open open;
610 struct nfsd4_open_confirm open_confirm;
611 struct nfsd4_open_downgrade open_downgrade;
612 struct nfsd4_putfh putfh;
613 struct nfsd4_read read;
614 struct nfsd4_readdir readdir;
615 struct nfsd4_readlink readlink;
616 struct nfsd4_remove remove;
617 struct nfsd4_rename rename;
618 clientid_t renew;
619 struct nfsd4_secinfo secinfo;
620 struct nfsd4_setattr setattr;
621 struct nfsd4_setclientid setclientid;
622 struct nfsd4_setclientid_confirm setclientid_confirm;
623 struct nfsd4_verify verify;
624 struct nfsd4_write write;
625 struct nfsd4_release_lockowner release_lockowner;
626
627
628 struct nfsd4_exchange_id exchange_id;
629 struct nfsd4_backchannel_ctl backchannel_ctl;
630 struct nfsd4_bind_conn_to_session bind_conn_to_session;
631 struct nfsd4_create_session create_session;
632 struct nfsd4_destroy_session destroy_session;
633 struct nfsd4_destroy_clientid destroy_clientid;
634 struct nfsd4_sequence sequence;
635 struct nfsd4_reclaim_complete reclaim_complete;
636 struct nfsd4_test_stateid test_stateid;
637 struct nfsd4_free_stateid free_stateid;
638 struct nfsd4_getdeviceinfo getdeviceinfo;
639 struct nfsd4_layoutget layoutget;
640 struct nfsd4_layoutcommit layoutcommit;
641 struct nfsd4_layoutreturn layoutreturn;
642 struct nfsd4_secinfo_no_name secinfo_no_name;
643
644
645 struct nfsd4_fallocate allocate;
646 struct nfsd4_fallocate deallocate;
647 struct nfsd4_clone clone;
648 struct nfsd4_copy copy;
649 struct nfsd4_offload_status offload_status;
650 struct nfsd4_copy_notify copy_notify;
651 struct nfsd4_seek seek;
652 } u;
653 struct nfs4_replay * replay;
654};
655
656bool nfsd4_cache_this_op(struct nfsd4_op *);
657
658
659
660
661struct svcxdr_tmpbuf {
662 struct svcxdr_tmpbuf *next;
663 char buf[];
664};
665
666struct nfsd4_compoundargs {
667
668 __be32 * p;
669 __be32 * end;
670 struct page ** pagelist;
671 int pagelen;
672 bool tail;
673 __be32 tmp[8];
674 __be32 * tmpp;
675 struct svcxdr_tmpbuf *to_free;
676
677 struct svc_rqst *rqstp;
678
679 u32 taglen;
680 char * tag;
681 u32 minorversion;
682 u32 opcnt;
683 struct nfsd4_op *ops;
684 struct nfsd4_op iops[8];
685 int cachetype;
686};
687
688struct nfsd4_compoundres {
689
690 struct xdr_stream xdr;
691 struct svc_rqst * rqstp;
692
693 u32 taglen;
694 char * tag;
695 u32 opcnt;
696 __be32 * tagp;
697 struct nfsd4_compound_state cstate;
698};
699
700static inline bool nfsd4_is_solo_sequence(struct nfsd4_compoundres *resp)
701{
702 struct nfsd4_compoundargs *args = resp->rqstp->rq_argp;
703 return resp->opcnt == 1 && args->ops[0].opnum == OP_SEQUENCE;
704}
705
706
707
708
709
710
711
712
713
714
715static inline bool nfsd4_cache_this(struct nfsd4_compoundres *resp)
716{
717 return (resp->cstate.slot->sl_flags & NFSD4_SLOT_CACHETHIS)
718 || nfsd4_is_solo_sequence(resp);
719}
720
721static inline bool nfsd4_last_compound_op(struct svc_rqst *rqstp)
722{
723 struct nfsd4_compoundres *resp = rqstp->rq_resp;
724 struct nfsd4_compoundargs *argp = rqstp->rq_argp;
725
726 return argp->opcnt == resp->opcnt;
727}
728
729const struct nfsd4_operation *OPDESC(struct nfsd4_op *op);
730int nfsd4_max_reply(struct svc_rqst *rqstp, struct nfsd4_op *op);
731void warn_on_nonidempotent_op(struct nfsd4_op *op);
732
733#define NFS4_SVC_XDRSIZE sizeof(struct nfsd4_compoundargs)
734
735static inline void
736set_change_info(struct nfsd4_change_info *cinfo, struct svc_fh *fhp)
737{
738 BUG_ON(!fhp->fh_pre_saved);
739 cinfo->atomic = (u32)fhp->fh_post_saved;
740 cinfo->change_supported = IS_I_VERSION(d_inode(fhp->fh_dentry));
741
742 cinfo->before_change = fhp->fh_pre_change;
743 cinfo->after_change = fhp->fh_post_change;
744 cinfo->before_ctime_sec = fhp->fh_pre_ctime.tv_sec;
745 cinfo->before_ctime_nsec = fhp->fh_pre_ctime.tv_nsec;
746 cinfo->after_ctime_sec = fhp->fh_post_attr.ctime.tv_sec;
747 cinfo->after_ctime_nsec = fhp->fh_post_attr.ctime.tv_nsec;
748
749}
750
751
752bool nfsd4_mach_creds_match(struct nfs4_client *cl, struct svc_rqst *rqstp);
753int nfs4svc_encode_voidres(struct svc_rqst *, __be32 *);
754int nfs4svc_decode_compoundargs(struct svc_rqst *, __be32 *);
755int nfs4svc_encode_compoundres(struct svc_rqst *, __be32 *);
756__be32 nfsd4_check_resp_size(struct nfsd4_compoundres *, u32);
757void nfsd4_encode_operation(struct nfsd4_compoundres *, struct nfsd4_op *);
758void nfsd4_encode_replay(struct xdr_stream *xdr, struct nfsd4_op *op);
759__be32 nfsd4_encode_fattr_to_buf(__be32 **p, int words,
760 struct svc_fh *fhp, struct svc_export *exp,
761 struct dentry *dentry,
762 u32 *bmval, struct svc_rqst *, int ignore_crossmnt);
763extern __be32 nfsd4_setclientid(struct svc_rqst *rqstp,
764 struct nfsd4_compound_state *, union nfsd4_op_u *u);
765extern __be32 nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
766 struct nfsd4_compound_state *, union nfsd4_op_u *u);
767extern __be32 nfsd4_exchange_id(struct svc_rqst *rqstp,
768 struct nfsd4_compound_state *, union nfsd4_op_u *u);
769extern __be32 nfsd4_backchannel_ctl(struct svc_rqst *,
770 struct nfsd4_compound_state *, union nfsd4_op_u *u);
771extern __be32 nfsd4_bind_conn_to_session(struct svc_rqst *,
772 struct nfsd4_compound_state *, union nfsd4_op_u *u);
773extern __be32 nfsd4_create_session(struct svc_rqst *,
774 struct nfsd4_compound_state *, union nfsd4_op_u *u);
775extern __be32 nfsd4_sequence(struct svc_rqst *,
776 struct nfsd4_compound_state *, union nfsd4_op_u *u);
777extern void nfsd4_sequence_done(struct nfsd4_compoundres *resp);
778extern __be32 nfsd4_destroy_session(struct svc_rqst *,
779 struct nfsd4_compound_state *, union nfsd4_op_u *u);
780extern __be32 nfsd4_destroy_clientid(struct svc_rqst *, struct nfsd4_compound_state *,
781 union nfsd4_op_u *u);
782__be32 nfsd4_reclaim_complete(struct svc_rqst *, struct nfsd4_compound_state *,
783 union nfsd4_op_u *u);
784extern __be32 nfsd4_process_open1(struct nfsd4_compound_state *,
785 struct nfsd4_open *open, struct nfsd_net *nn);
786extern __be32 nfsd4_process_open2(struct svc_rqst *rqstp,
787 struct svc_fh *current_fh, struct nfsd4_open *open);
788extern void nfsd4_cstate_clear_replay(struct nfsd4_compound_state *cstate);
789extern void nfsd4_cleanup_open_state(struct nfsd4_compound_state *cstate,
790 struct nfsd4_open *open);
791extern __be32 nfsd4_open_confirm(struct svc_rqst *rqstp,
792 struct nfsd4_compound_state *, union nfsd4_op_u *u);
793extern __be32 nfsd4_close(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
794 union nfsd4_op_u *u);
795extern __be32 nfsd4_open_downgrade(struct svc_rqst *rqstp,
796 struct nfsd4_compound_state *, union nfsd4_op_u *u);
797extern __be32 nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
798 union nfsd4_op_u *u);
799extern __be32 nfsd4_lockt(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
800 union nfsd4_op_u *u);
801extern __be32 nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
802 union nfsd4_op_u *u);
803extern __be32
804nfsd4_release_lockowner(struct svc_rqst *rqstp,
805 struct nfsd4_compound_state *, union nfsd4_op_u *u);
806extern void nfsd4_release_compoundargs(struct svc_rqst *rqstp);
807extern __be32 nfsd4_delegreturn(struct svc_rqst *rqstp,
808 struct nfsd4_compound_state *, union nfsd4_op_u *u);
809extern __be32 nfsd4_renew(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
810 union nfsd4_op_u *u);
811extern __be32 nfsd4_test_stateid(struct svc_rqst *rqstp,
812 struct nfsd4_compound_state *, union nfsd4_op_u *);
813extern __be32 nfsd4_free_stateid(struct svc_rqst *rqstp,
814 struct nfsd4_compound_state *, union nfsd4_op_u *);
815extern void nfsd4_bump_seqid(struct nfsd4_compound_state *, __be32 nfserr);
816
817enum nfsd4_op_flags {
818 ALLOWED_WITHOUT_FH = 1 << 0,
819 ALLOWED_ON_ABSENT_FS = 1 << 1,
820 ALLOWED_AS_FIRST_OP = 1 << 2,
821
822 OP_HANDLES_WRONGSEC = 1 << 3,
823 OP_IS_PUTFH_LIKE = 1 << 4,
824
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830 OP_MODIFIES_SOMETHING = 1 << 5,
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840 OP_CACHEME = 1 << 6,
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844 OP_CLEAR_STATEID = 1 << 7,
845
846 OP_NONTRIVIAL_ERROR_ENCODE = 1 << 8,
847};
848
849struct nfsd4_operation {
850 __be32 (*op_func)(struct svc_rqst *, struct nfsd4_compound_state *,
851 union nfsd4_op_u *);
852 void (*op_release)(union nfsd4_op_u *);
853 u32 op_flags;
854 char *op_name;
855
856 u32 (*op_rsize_bop)(struct svc_rqst *, struct nfsd4_op *);
857 void (*op_get_currentstateid)(struct nfsd4_compound_state *,
858 union nfsd4_op_u *);
859 void (*op_set_currentstateid)(struct nfsd4_compound_state *,
860 union nfsd4_op_u *);
861};
862
863
864#endif
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