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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_getxattr {
228 char *getxa_name;
229 u32 getxa_len;
230 void *getxa_buf;
231};
232
233struct nfsd4_setxattr {
234 u32 setxa_flags;
235 char *setxa_name;
236 char *setxa_buf;
237 u32 setxa_len;
238 struct nfsd4_change_info setxa_cinfo;
239};
240
241struct nfsd4_removexattr {
242 char *rmxa_name;
243 struct nfsd4_change_info rmxa_cinfo;
244};
245
246struct nfsd4_listxattrs {
247 u64 lsxa_cookie;
248 u32 lsxa_maxcount;
249 char *lsxa_buf;
250 u32 lsxa_len;
251};
252
253struct nfsd4_open {
254 u32 op_claim_type;
255 struct xdr_netobj op_fname;
256 u32 op_delegate_type;
257 stateid_t op_delegate_stateid;
258 u32 op_why_no_deleg;
259 u32 op_create;
260 u32 op_createmode;
261 int op_umask;
262 u32 op_bmval[3];
263 struct iattr op_iattr;
264 nfs4_verifier op_verf __attribute__((aligned(32)));
265
266 clientid_t op_clientid;
267 struct xdr_netobj op_owner;
268 u32 op_seqid;
269 u32 op_share_access;
270 u32 op_share_deny;
271 u32 op_deleg_want;
272 stateid_t op_stateid;
273 __be32 op_xdr_error;
274 u32 op_recall;
275 struct nfsd4_change_info op_cinfo;
276 u32 op_rflags;
277 bool op_truncate;
278 bool op_created;
279 struct nfs4_openowner *op_openowner;
280 struct nfs4_file *op_file;
281 struct nfs4_ol_stateid *op_stp;
282 struct nfs4_clnt_odstate *op_odstate;
283 struct nfs4_acl *op_acl;
284 struct xdr_netobj op_label;
285};
286
287struct nfsd4_open_confirm {
288 stateid_t oc_req_stateid ;
289 u32 oc_seqid ;
290 stateid_t oc_resp_stateid ;
291};
292
293struct nfsd4_open_downgrade {
294 stateid_t od_stateid;
295 u32 od_seqid;
296 u32 od_share_access;
297 u32 od_deleg_want;
298 u32 od_share_deny;
299};
300
301
302struct nfsd4_read {
303 stateid_t rd_stateid;
304 u64 rd_offset;
305 u32 rd_length;
306 int rd_vlen;
307 struct nfsd_file *rd_nf;
308
309 struct svc_rqst *rd_rqstp;
310 struct svc_fh *rd_fhp;
311};
312
313struct nfsd4_readdir {
314 u64 rd_cookie;
315 nfs4_verifier rd_verf;
316 u32 rd_dircount;
317 u32 rd_maxcount;
318 u32 rd_bmval[3];
319 struct svc_rqst *rd_rqstp;
320 struct svc_fh * rd_fhp;
321
322 struct readdir_cd common;
323 struct xdr_stream *xdr;
324 int cookie_offset;
325};
326
327struct nfsd4_release_lockowner {
328 clientid_t rl_clientid;
329 struct xdr_netobj rl_owner;
330};
331struct nfsd4_readlink {
332 struct svc_rqst *rl_rqstp;
333 struct svc_fh * rl_fhp;
334};
335
336struct nfsd4_remove {
337 u32 rm_namelen;
338 char * rm_name;
339 struct nfsd4_change_info rm_cinfo;
340};
341
342struct nfsd4_rename {
343 u32 rn_snamelen;
344 char * rn_sname;
345 u32 rn_tnamelen;
346 char * rn_tname;
347 struct nfsd4_change_info rn_sinfo;
348 struct nfsd4_change_info rn_tinfo;
349};
350
351struct nfsd4_secinfo {
352 u32 si_namelen;
353 char *si_name;
354 struct svc_export *si_exp;
355};
356
357struct nfsd4_secinfo_no_name {
358 u32 sin_style;
359 struct svc_export *sin_exp;
360};
361
362struct nfsd4_setattr {
363 stateid_t sa_stateid;
364 u32 sa_bmval[3];
365 struct iattr sa_iattr;
366 struct nfs4_acl *sa_acl;
367 struct xdr_netobj sa_label;
368};
369
370struct nfsd4_setclientid {
371 nfs4_verifier se_verf;
372 struct xdr_netobj se_name;
373 u32 se_callback_prog;
374 u32 se_callback_netid_len;
375 char * se_callback_netid_val;
376 u32 se_callback_addr_len;
377 char * se_callback_addr_val;
378 u32 se_callback_ident;
379 clientid_t se_clientid;
380 nfs4_verifier se_confirm;
381};
382
383struct nfsd4_setclientid_confirm {
384 clientid_t sc_clientid;
385 nfs4_verifier sc_confirm;
386};
387
388struct nfsd4_saved_compoundargs {
389 __be32 *p;
390 __be32 *end;
391 int pagelen;
392 struct page **pagelist;
393};
394
395struct nfsd4_test_stateid_id {
396 __be32 ts_id_status;
397 stateid_t ts_id_stateid;
398 struct list_head ts_id_list;
399};
400
401struct nfsd4_test_stateid {
402 u32 ts_num_ids;
403 struct list_head ts_stateid_list;
404};
405
406struct nfsd4_free_stateid {
407 stateid_t fr_stateid;
408};
409
410
411struct nfsd4_verify {
412 u32 ve_bmval[3];
413 u32 ve_attrlen;
414 char * ve_attrval;
415};
416
417struct nfsd4_write {
418 stateid_t wr_stateid;
419 u64 wr_offset;
420 u32 wr_stable_how;
421 u32 wr_buflen;
422 struct kvec wr_head;
423 struct page ** wr_pagelist;
424
425 u32 wr_bytes_written;
426 u32 wr_how_written;
427 nfs4_verifier wr_verifier;
428};
429
430struct nfsd4_exchange_id {
431 nfs4_verifier verifier;
432 struct xdr_netobj clname;
433 u32 flags;
434 clientid_t clientid;
435 u32 seqid;
436 int spa_how;
437 u32 spo_must_enforce[3];
438 u32 spo_must_allow[3];
439 struct xdr_netobj nii_domain;
440 struct xdr_netobj nii_name;
441 struct timespec64 nii_time;
442};
443
444struct nfsd4_sequence {
445 struct nfs4_sessionid sessionid;
446 u32 seqid;
447 u32 slotid;
448 u32 maxslots;
449 u32 cachethis;
450#if 0
451 u32 target_maxslots;
452#endif
453 u32 status_flags;
454};
455
456struct nfsd4_destroy_session {
457 struct nfs4_sessionid sessionid;
458};
459
460struct nfsd4_destroy_clientid {
461 clientid_t clientid;
462};
463
464struct nfsd4_reclaim_complete {
465 u32 rca_one_fs;
466};
467
468struct nfsd4_deviceid {
469 u64 fsid_idx;
470 u32 generation;
471 u32 pad;
472};
473
474struct nfsd4_layout_seg {
475 u32 iomode;
476 u64 offset;
477 u64 length;
478};
479
480struct nfsd4_getdeviceinfo {
481 struct nfsd4_deviceid gd_devid;
482 u32 gd_layout_type;
483 u32 gd_maxcount;
484 u32 gd_notify_types;
485 void *gd_device;
486};
487
488struct nfsd4_layoutget {
489 u64 lg_minlength;
490 u32 lg_signal;
491 u32 lg_layout_type;
492 u32 lg_maxcount;
493 stateid_t lg_sid;
494 struct nfsd4_layout_seg lg_seg;
495 void *lg_content;
496};
497
498struct nfsd4_layoutcommit {
499 stateid_t lc_sid;
500 struct nfsd4_layout_seg lc_seg;
501 u32 lc_reclaim;
502 u32 lc_newoffset;
503 u64 lc_last_wr;
504 struct timespec64 lc_mtime;
505 u32 lc_layout_type;
506 u32 lc_up_len;
507 void *lc_up_layout;
508 u32 lc_size_chg;
509 u64 lc_newsize;
510};
511
512struct nfsd4_layoutreturn {
513 u32 lr_return_type;
514 u32 lr_layout_type;
515 struct nfsd4_layout_seg lr_seg;
516 u32 lr_reclaim;
517 u32 lrf_body_len;
518 void *lrf_body;
519 stateid_t lr_sid;
520 u32 lrs_present;
521};
522
523struct nfsd4_fallocate {
524
525 stateid_t falloc_stateid;
526 loff_t falloc_offset;
527 u64 falloc_length;
528};
529
530struct nfsd4_clone {
531
532 stateid_t cl_src_stateid;
533 stateid_t cl_dst_stateid;
534 u64 cl_src_pos;
535 u64 cl_dst_pos;
536 u64 cl_count;
537};
538
539struct nfsd42_write_res {
540 u64 wr_bytes_written;
541 u32 wr_stable_how;
542 nfs4_verifier wr_verifier;
543 stateid_t cb_stateid;
544};
545
546struct nfsd4_copy {
547
548 stateid_t cp_src_stateid;
549 stateid_t cp_dst_stateid;
550 u64 cp_src_pos;
551 u64 cp_dst_pos;
552 u64 cp_count;
553 struct nl4_server cp_src;
554 bool cp_intra;
555
556
557 bool cp_synchronous;
558
559
560 struct nfsd42_write_res cp_res;
561
562
563 struct nfsd4_callback cp_cb;
564 __be32 nfserr;
565 struct knfsd_fh fh;
566
567 struct nfs4_client *cp_clp;
568
569 struct nfsd_file *nf_src;
570 struct nfsd_file *nf_dst;
571
572 copy_stateid_t cp_stateid;
573
574 struct list_head copies;
575 struct task_struct *copy_task;
576 refcount_t refcount;
577 bool stopped;
578
579 struct vfsmount *ss_mnt;
580 struct nfs_fh c_fh;
581 nfs4_stateid stateid;
582};
583extern bool inter_copy_offload_enable;
584
585struct nfsd4_seek {
586
587 stateid_t seek_stateid;
588 loff_t seek_offset;
589 u32 seek_whence;
590
591
592 u32 seek_eof;
593 loff_t seek_pos;
594};
595
596struct nfsd4_offload_status {
597
598 stateid_t stateid;
599
600
601 u64 count;
602 u32 status;
603};
604
605struct nfsd4_copy_notify {
606
607 stateid_t cpn_src_stateid;
608 struct nl4_server cpn_dst;
609
610
611 stateid_t cpn_cnr_stateid;
612 u64 cpn_sec;
613 u32 cpn_nsec;
614 struct nl4_server cpn_src;
615};
616
617struct nfsd4_op {
618 int opnum;
619 const struct nfsd4_operation * opdesc;
620 __be32 status;
621 union nfsd4_op_u {
622 struct nfsd4_access access;
623 struct nfsd4_close close;
624 struct nfsd4_commit commit;
625 struct nfsd4_create create;
626 struct nfsd4_delegreturn delegreturn;
627 struct nfsd4_getattr getattr;
628 struct svc_fh * getfh;
629 struct nfsd4_link link;
630 struct nfsd4_lock lock;
631 struct nfsd4_lockt lockt;
632 struct nfsd4_locku locku;
633 struct nfsd4_lookup lookup;
634 struct nfsd4_verify nverify;
635 struct nfsd4_open open;
636 struct nfsd4_open_confirm open_confirm;
637 struct nfsd4_open_downgrade open_downgrade;
638 struct nfsd4_putfh putfh;
639 struct nfsd4_read read;
640 struct nfsd4_readdir readdir;
641 struct nfsd4_readlink readlink;
642 struct nfsd4_remove remove;
643 struct nfsd4_rename rename;
644 clientid_t renew;
645 struct nfsd4_secinfo secinfo;
646 struct nfsd4_setattr setattr;
647 struct nfsd4_setclientid setclientid;
648 struct nfsd4_setclientid_confirm setclientid_confirm;
649 struct nfsd4_verify verify;
650 struct nfsd4_write write;
651 struct nfsd4_release_lockowner release_lockowner;
652
653
654 struct nfsd4_exchange_id exchange_id;
655 struct nfsd4_backchannel_ctl backchannel_ctl;
656 struct nfsd4_bind_conn_to_session bind_conn_to_session;
657 struct nfsd4_create_session create_session;
658 struct nfsd4_destroy_session destroy_session;
659 struct nfsd4_destroy_clientid destroy_clientid;
660 struct nfsd4_sequence sequence;
661 struct nfsd4_reclaim_complete reclaim_complete;
662 struct nfsd4_test_stateid test_stateid;
663 struct nfsd4_free_stateid free_stateid;
664 struct nfsd4_getdeviceinfo getdeviceinfo;
665 struct nfsd4_layoutget layoutget;
666 struct nfsd4_layoutcommit layoutcommit;
667 struct nfsd4_layoutreturn layoutreturn;
668 struct nfsd4_secinfo_no_name secinfo_no_name;
669
670
671 struct nfsd4_fallocate allocate;
672 struct nfsd4_fallocate deallocate;
673 struct nfsd4_clone clone;
674 struct nfsd4_copy copy;
675 struct nfsd4_offload_status offload_status;
676 struct nfsd4_copy_notify copy_notify;
677 struct nfsd4_seek seek;
678
679 struct nfsd4_getxattr getxattr;
680 struct nfsd4_setxattr setxattr;
681 struct nfsd4_listxattrs listxattrs;
682 struct nfsd4_removexattr removexattr;
683 } u;
684 struct nfs4_replay * replay;
685};
686
687bool nfsd4_cache_this_op(struct nfsd4_op *);
688
689
690
691
692struct svcxdr_tmpbuf {
693 struct svcxdr_tmpbuf *next;
694 char buf[];
695};
696
697struct nfsd4_compoundargs {
698
699 __be32 * p;
700 __be32 * end;
701 struct page ** pagelist;
702 int pagelen;
703 bool tail;
704 __be32 tmp[8];
705 __be32 * tmpp;
706 struct svcxdr_tmpbuf *to_free;
707
708 struct svc_rqst *rqstp;
709
710 u32 taglen;
711 char * tag;
712 u32 minorversion;
713 u32 opcnt;
714 struct nfsd4_op *ops;
715 struct nfsd4_op iops[8];
716 int cachetype;
717};
718
719struct nfsd4_compoundres {
720
721 struct xdr_stream xdr;
722 struct svc_rqst * rqstp;
723
724 u32 taglen;
725 char * tag;
726 u32 opcnt;
727 __be32 * tagp;
728 struct nfsd4_compound_state cstate;
729};
730
731static inline bool nfsd4_is_solo_sequence(struct nfsd4_compoundres *resp)
732{
733 struct nfsd4_compoundargs *args = resp->rqstp->rq_argp;
734 return resp->opcnt == 1 && args->ops[0].opnum == OP_SEQUENCE;
735}
736
737
738
739
740
741
742
743
744
745
746static inline bool nfsd4_cache_this(struct nfsd4_compoundres *resp)
747{
748 return (resp->cstate.slot->sl_flags & NFSD4_SLOT_CACHETHIS)
749 || nfsd4_is_solo_sequence(resp);
750}
751
752static inline bool nfsd4_last_compound_op(struct svc_rqst *rqstp)
753{
754 struct nfsd4_compoundres *resp = rqstp->rq_resp;
755 struct nfsd4_compoundargs *argp = rqstp->rq_argp;
756
757 return argp->opcnt == resp->opcnt;
758}
759
760const struct nfsd4_operation *OPDESC(struct nfsd4_op *op);
761int nfsd4_max_reply(struct svc_rqst *rqstp, struct nfsd4_op *op);
762void warn_on_nonidempotent_op(struct nfsd4_op *op);
763
764#define NFS4_SVC_XDRSIZE sizeof(struct nfsd4_compoundargs)
765
766static inline void
767set_change_info(struct nfsd4_change_info *cinfo, struct svc_fh *fhp)
768{
769 BUG_ON(!fhp->fh_pre_saved);
770 cinfo->atomic = (u32)fhp->fh_post_saved;
771 cinfo->change_supported = IS_I_VERSION(d_inode(fhp->fh_dentry));
772
773 cinfo->before_change = fhp->fh_pre_change;
774 cinfo->after_change = fhp->fh_post_change;
775 cinfo->before_ctime_sec = fhp->fh_pre_ctime.tv_sec;
776 cinfo->before_ctime_nsec = fhp->fh_pre_ctime.tv_nsec;
777 cinfo->after_ctime_sec = fhp->fh_post_attr.ctime.tv_sec;
778 cinfo->after_ctime_nsec = fhp->fh_post_attr.ctime.tv_nsec;
779
780}
781
782
783bool nfsd4_mach_creds_match(struct nfs4_client *cl, struct svc_rqst *rqstp);
784int nfs4svc_encode_voidres(struct svc_rqst *, __be32 *);
785int nfs4svc_decode_compoundargs(struct svc_rqst *, __be32 *);
786int nfs4svc_encode_compoundres(struct svc_rqst *, __be32 *);
787__be32 nfsd4_check_resp_size(struct nfsd4_compoundres *, u32);
788void nfsd4_encode_operation(struct nfsd4_compoundres *, struct nfsd4_op *);
789void nfsd4_encode_replay(struct xdr_stream *xdr, struct nfsd4_op *op);
790__be32 nfsd4_encode_fattr_to_buf(__be32 **p, int words,
791 struct svc_fh *fhp, struct svc_export *exp,
792 struct dentry *dentry,
793 u32 *bmval, struct svc_rqst *, int ignore_crossmnt);
794extern __be32 nfsd4_setclientid(struct svc_rqst *rqstp,
795 struct nfsd4_compound_state *, union nfsd4_op_u *u);
796extern __be32 nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
797 struct nfsd4_compound_state *, union nfsd4_op_u *u);
798extern __be32 nfsd4_exchange_id(struct svc_rqst *rqstp,
799 struct nfsd4_compound_state *, union nfsd4_op_u *u);
800extern __be32 nfsd4_backchannel_ctl(struct svc_rqst *,
801 struct nfsd4_compound_state *, union nfsd4_op_u *u);
802extern __be32 nfsd4_bind_conn_to_session(struct svc_rqst *,
803 struct nfsd4_compound_state *, union nfsd4_op_u *u);
804extern __be32 nfsd4_create_session(struct svc_rqst *,
805 struct nfsd4_compound_state *, union nfsd4_op_u *u);
806extern __be32 nfsd4_sequence(struct svc_rqst *,
807 struct nfsd4_compound_state *, union nfsd4_op_u *u);
808extern void nfsd4_sequence_done(struct nfsd4_compoundres *resp);
809extern __be32 nfsd4_destroy_session(struct svc_rqst *,
810 struct nfsd4_compound_state *, union nfsd4_op_u *u);
811extern __be32 nfsd4_destroy_clientid(struct svc_rqst *, struct nfsd4_compound_state *,
812 union nfsd4_op_u *u);
813__be32 nfsd4_reclaim_complete(struct svc_rqst *, struct nfsd4_compound_state *,
814 union nfsd4_op_u *u);
815extern __be32 nfsd4_process_open1(struct nfsd4_compound_state *,
816 struct nfsd4_open *open, struct nfsd_net *nn);
817extern __be32 nfsd4_process_open2(struct svc_rqst *rqstp,
818 struct svc_fh *current_fh, struct nfsd4_open *open);
819extern void nfsd4_cstate_clear_replay(struct nfsd4_compound_state *cstate);
820extern void nfsd4_cleanup_open_state(struct nfsd4_compound_state *cstate,
821 struct nfsd4_open *open);
822extern __be32 nfsd4_open_confirm(struct svc_rqst *rqstp,
823 struct nfsd4_compound_state *, union nfsd4_op_u *u);
824extern __be32 nfsd4_close(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
825 union nfsd4_op_u *u);
826extern __be32 nfsd4_open_downgrade(struct svc_rqst *rqstp,
827 struct nfsd4_compound_state *, union nfsd4_op_u *u);
828extern __be32 nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
829 union nfsd4_op_u *u);
830extern __be32 nfsd4_lockt(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
831 union nfsd4_op_u *u);
832extern __be32 nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
833 union nfsd4_op_u *u);
834extern __be32
835nfsd4_release_lockowner(struct svc_rqst *rqstp,
836 struct nfsd4_compound_state *, union nfsd4_op_u *u);
837extern void nfsd4_release_compoundargs(struct svc_rqst *rqstp);
838extern __be32 nfsd4_delegreturn(struct svc_rqst *rqstp,
839 struct nfsd4_compound_state *, union nfsd4_op_u *u);
840extern __be32 nfsd4_renew(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
841 union nfsd4_op_u *u);
842extern __be32 nfsd4_test_stateid(struct svc_rqst *rqstp,
843 struct nfsd4_compound_state *, union nfsd4_op_u *);
844extern __be32 nfsd4_free_stateid(struct svc_rqst *rqstp,
845 struct nfsd4_compound_state *, union nfsd4_op_u *);
846extern void nfsd4_bump_seqid(struct nfsd4_compound_state *, __be32 nfserr);
847
848enum nfsd4_op_flags {
849 ALLOWED_WITHOUT_FH = 1 << 0,
850 ALLOWED_ON_ABSENT_FS = 1 << 1,
851 ALLOWED_AS_FIRST_OP = 1 << 2,
852
853 OP_HANDLES_WRONGSEC = 1 << 3,
854 OP_IS_PUTFH_LIKE = 1 << 4,
855
856
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860
861 OP_MODIFIES_SOMETHING = 1 << 5,
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871 OP_CACHEME = 1 << 6,
872
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874
875 OP_CLEAR_STATEID = 1 << 7,
876
877 OP_NONTRIVIAL_ERROR_ENCODE = 1 << 8,
878};
879
880struct nfsd4_operation {
881 __be32 (*op_func)(struct svc_rqst *, struct nfsd4_compound_state *,
882 union nfsd4_op_u *);
883 void (*op_release)(union nfsd4_op_u *);
884 u32 op_flags;
885 char *op_name;
886
887 u32 (*op_rsize_bop)(struct svc_rqst *, struct nfsd4_op *);
888 void (*op_get_currentstateid)(struct nfsd4_compound_state *,
889 union nfsd4_op_u *);
890 void (*op_set_currentstateid)(struct nfsd4_compound_state *,
891 union nfsd4_op_u *);
892};
893
894
895#endif
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