xref: /openbmc/linux/fs/nfsd/xdr4.h (revision 9ec3a646)
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 
46 #define CURRENT_STATE_ID_FLAG (1<<0)
47 #define SAVED_STATE_ID_FLAG (1<<1)
48 
49 #define SET_STATE_ID(c, f) ((c)->sid_flags |= (f))
50 #define HAS_STATE_ID(c, f) ((c)->sid_flags & (f))
51 #define CLEAR_STATE_ID(c, f) ((c)->sid_flags &= ~(f))
52 
53 struct 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 	/* For sessions DRC */
59 	struct nfsd4_session	*session;
60 	struct nfsd4_slot	*slot;
61 	int			data_offset;
62 	size_t			iovlen;
63 	u32			minorversion;
64 	__be32			status;
65 	stateid_t	current_stateid;
66 	stateid_t	save_stateid;
67 	/* to indicate current and saved state id presents */
68 	u32		sid_flags;
69 };
70 
71 static inline bool nfsd4_has_session(struct nfsd4_compound_state *cs)
72 {
73 	return cs->slot != NULL;
74 }
75 
76 struct nfsd4_change_info {
77 	u32		atomic;
78 	bool		change_supported;
79 	u32		before_ctime_sec;
80 	u32		before_ctime_nsec;
81 	u64		before_change;
82 	u32		after_ctime_sec;
83 	u32		after_ctime_nsec;
84 	u64		after_change;
85 };
86 
87 struct nfsd4_access {
88 	u32		ac_req_access;      /* request */
89 	u32		ac_supported;       /* response */
90 	u32		ac_resp_access;     /* response */
91 };
92 
93 struct nfsd4_close {
94 	u32		cl_seqid;           /* request */
95 	stateid_t	cl_stateid;         /* request+response */
96 };
97 
98 struct nfsd4_commit {
99 	u64		co_offset;          /* request */
100 	u32		co_count;           /* request */
101 	nfs4_verifier	co_verf;            /* response */
102 };
103 
104 struct nfsd4_create {
105 	u32		cr_namelen;         /* request */
106 	char *		cr_name;            /* request */
107 	u32		cr_type;            /* request */
108 	union {                             /* request */
109 		struct {
110 			u32 datalen;
111 			char *data;
112 		} link;   /* NF4LNK */
113 		struct {
114 			u32 specdata1;
115 			u32 specdata2;
116 		} dev;    /* NF4BLK, NF4CHR */
117 	} u;
118 	u32		cr_bmval[3];        /* request */
119 	struct iattr	cr_iattr;           /* request */
120 	struct nfsd4_change_info  cr_cinfo; /* response */
121 	struct nfs4_acl *cr_acl;
122 	struct xdr_netobj cr_label;
123 };
124 #define cr_datalen	u.link.datalen
125 #define cr_data		u.link.data
126 #define cr_specdata1	u.dev.specdata1
127 #define cr_specdata2	u.dev.specdata2
128 
129 struct nfsd4_delegreturn {
130 	stateid_t	dr_stateid;
131 };
132 
133 struct nfsd4_getattr {
134 	u32		ga_bmval[3];        /* request */
135 	struct svc_fh	*ga_fhp;            /* response */
136 };
137 
138 struct nfsd4_link {
139 	u32		li_namelen;         /* request */
140 	char *		li_name;            /* request */
141 	struct nfsd4_change_info  li_cinfo; /* response */
142 };
143 
144 struct nfsd4_lock_denied {
145 	clientid_t	ld_clientid;
146 	struct xdr_netobj	ld_owner;
147 	u64             ld_start;
148 	u64             ld_length;
149 	u32             ld_type;
150 };
151 
152 struct nfsd4_lock {
153 	/* request */
154 	u32             lk_type;
155 	u32             lk_reclaim;         /* boolean */
156 	u64             lk_offset;
157 	u64             lk_length;
158 	u32             lk_is_new;
159 	union {
160 		struct {
161 			u32             open_seqid;
162 			stateid_t       open_stateid;
163 			u32             lock_seqid;
164 			clientid_t      clientid;
165 			struct xdr_netobj owner;
166 		} new;
167 		struct {
168 			stateid_t       lock_stateid;
169 			u32             lock_seqid;
170 		} old;
171 	} v;
172 
173 	/* response */
174 	union {
175 		struct {
176 			stateid_t               stateid;
177 		} ok;
178 		struct nfsd4_lock_denied        denied;
179 	} u;
180 };
181 #define lk_new_open_seqid       v.new.open_seqid
182 #define lk_new_open_stateid     v.new.open_stateid
183 #define lk_new_lock_seqid       v.new.lock_seqid
184 #define lk_new_clientid         v.new.clientid
185 #define lk_new_owner            v.new.owner
186 #define lk_old_lock_stateid     v.old.lock_stateid
187 #define lk_old_lock_seqid       v.old.lock_seqid
188 
189 #define lk_resp_stateid u.ok.stateid
190 #define lk_denied       u.denied
191 
192 
193 struct nfsd4_lockt {
194 	u32				lt_type;
195 	clientid_t			lt_clientid;
196 	struct xdr_netobj		lt_owner;
197 	u64				lt_offset;
198 	u64				lt_length;
199 	struct nfsd4_lock_denied  	lt_denied;
200 };
201 
202 
203 struct nfsd4_locku {
204 	u32             lu_type;
205 	u32             lu_seqid;
206 	stateid_t       lu_stateid;
207 	u64             lu_offset;
208 	u64             lu_length;
209 };
210 
211 
212 struct nfsd4_lookup {
213 	u32		lo_len;             /* request */
214 	char *		lo_name;            /* request */
215 };
216 
217 struct nfsd4_putfh {
218 	u32		pf_fhlen;           /* request */
219 	char		*pf_fhval;          /* request */
220 };
221 
222 struct nfsd4_open {
223 	u32		op_claim_type;      /* request */
224 	struct xdr_netobj op_fname;	    /* request - everything but CLAIM_PREV */
225 	u32		op_delegate_type;   /* request - CLAIM_PREV only */
226 	stateid_t       op_delegate_stateid; /* request - response */
227 	u32		op_why_no_deleg;    /* response - DELEG_NONE_EXT only */
228 	u32		op_create;     	    /* request */
229 	u32		op_createmode;      /* request */
230 	u32		op_bmval[3];        /* request */
231 	struct iattr	op_iattr;           /* UNCHECKED4, GUARDED4, EXCLUSIVE4_1 */
232 	nfs4_verifier	op_verf __attribute__((aligned(32)));
233 					    /* EXCLUSIVE4 */
234 	clientid_t	op_clientid;        /* request */
235 	struct xdr_netobj op_owner;           /* request */
236 	u32		op_seqid;           /* request */
237 	u32		op_share_access;    /* request */
238 	u32		op_share_deny;      /* request */
239 	u32		op_deleg_want;      /* request */
240 	stateid_t	op_stateid;         /* response */
241 	__be32		op_xdr_error;       /* see nfsd4_open_omfg() */
242 	u32		op_recall;          /* recall */
243 	struct nfsd4_change_info  op_cinfo; /* response */
244 	u32		op_rflags;          /* response */
245 	bool		op_truncate;        /* used during processing */
246 	bool		op_created;         /* used during processing */
247 	struct nfs4_openowner *op_openowner; /* used during processing */
248 	struct nfs4_file *op_file;          /* used during processing */
249 	struct nfs4_ol_stateid *op_stp;	    /* used during processing */
250 	struct nfs4_acl *op_acl;
251 	struct xdr_netobj op_label;
252 };
253 
254 struct nfsd4_open_confirm {
255 	stateid_t	oc_req_stateid		/* request */;
256 	u32		oc_seqid    		/* request */;
257 	stateid_t	oc_resp_stateid		/* response */;
258 };
259 
260 struct nfsd4_open_downgrade {
261 	stateid_t       od_stateid;
262 	u32             od_seqid;
263 	u32             od_share_access;	/* request */
264 	u32		od_deleg_want;		/* request */
265 	u32             od_share_deny;		/* request */
266 };
267 
268 
269 struct nfsd4_read {
270 	stateid_t	rd_stateid;         /* request */
271 	u64		rd_offset;          /* request */
272 	u32		rd_length;          /* request */
273 	int		rd_vlen;
274 	struct file     *rd_filp;
275 
276 	struct svc_rqst *rd_rqstp;          /* response */
277 	struct svc_fh * rd_fhp;             /* response */
278 };
279 
280 struct nfsd4_readdir {
281 	u64		rd_cookie;          /* request */
282 	nfs4_verifier	rd_verf;            /* request */
283 	u32		rd_dircount;        /* request */
284 	u32		rd_maxcount;        /* request */
285 	u32		rd_bmval[3];        /* request */
286 	struct svc_rqst *rd_rqstp;          /* response */
287 	struct svc_fh * rd_fhp;             /* response */
288 
289 	struct readdir_cd	common;
290 	struct xdr_stream	*xdr;
291 	int			cookie_offset;
292 };
293 
294 struct nfsd4_release_lockowner {
295 	clientid_t        rl_clientid;
296 	struct xdr_netobj rl_owner;
297 };
298 struct nfsd4_readlink {
299 	struct svc_rqst *rl_rqstp;          /* request */
300 	struct svc_fh *	rl_fhp;             /* request */
301 };
302 
303 struct nfsd4_remove {
304 	u32		rm_namelen;         /* request */
305 	char *		rm_name;            /* request */
306 	struct nfsd4_change_info  rm_cinfo; /* response */
307 };
308 
309 struct nfsd4_rename {
310 	u32		rn_snamelen;        /* request */
311 	char *		rn_sname;           /* request */
312 	u32		rn_tnamelen;        /* request */
313 	char *		rn_tname;           /* request */
314 	struct nfsd4_change_info  rn_sinfo; /* response */
315 	struct nfsd4_change_info  rn_tinfo; /* response */
316 };
317 
318 struct nfsd4_secinfo {
319 	u32 si_namelen;					/* request */
320 	char *si_name;					/* request */
321 	struct svc_export *si_exp;			/* response */
322 };
323 
324 struct nfsd4_secinfo_no_name {
325 	u32 sin_style;					/* request */
326 	struct svc_export *sin_exp;			/* response */
327 };
328 
329 struct nfsd4_setattr {
330 	stateid_t	sa_stateid;         /* request */
331 	u32		sa_bmval[3];        /* request */
332 	struct iattr	sa_iattr;           /* request */
333 	struct nfs4_acl *sa_acl;
334 	struct xdr_netobj sa_label;
335 };
336 
337 struct nfsd4_setclientid {
338 	nfs4_verifier	se_verf;            /* request */
339 	struct xdr_netobj se_name;
340 	u32		se_callback_prog;   /* request */
341 	u32		se_callback_netid_len;  /* request */
342 	char *		se_callback_netid_val;  /* request */
343 	u32		se_callback_addr_len;   /* request */
344 	char *		se_callback_addr_val;   /* request */
345 	u32		se_callback_ident;  /* request */
346 	clientid_t	se_clientid;        /* response */
347 	nfs4_verifier	se_confirm;         /* response */
348 };
349 
350 struct nfsd4_setclientid_confirm {
351 	clientid_t	sc_clientid;
352 	nfs4_verifier	sc_confirm;
353 };
354 
355 struct nfsd4_saved_compoundargs {
356 	__be32 *p;
357 	__be32 *end;
358 	int pagelen;
359 	struct page **pagelist;
360 };
361 
362 struct nfsd4_test_stateid_id {
363 	__be32			ts_id_status;
364 	stateid_t		ts_id_stateid;
365 	struct list_head	ts_id_list;
366 };
367 
368 struct nfsd4_test_stateid {
369 	u32		ts_num_ids;
370 	struct list_head ts_stateid_list;
371 };
372 
373 struct nfsd4_free_stateid {
374 	stateid_t	fr_stateid;         /* request */
375 };
376 
377 /* also used for NVERIFY */
378 struct nfsd4_verify {
379 	u32		ve_bmval[3];        /* request */
380 	u32		ve_attrlen;         /* request */
381 	char *		ve_attrval;         /* request */
382 };
383 
384 struct nfsd4_write {
385 	stateid_t	wr_stateid;         /* request */
386 	u64		wr_offset;          /* request */
387 	u32		wr_stable_how;      /* request */
388 	u32		wr_buflen;          /* request */
389 	struct kvec	wr_head;
390 	struct page **	wr_pagelist;        /* request */
391 
392 	u32		wr_bytes_written;   /* response */
393 	u32		wr_how_written;     /* response */
394 	nfs4_verifier	wr_verifier;        /* response */
395 };
396 
397 struct nfsd4_exchange_id {
398 	nfs4_verifier	verifier;
399 	struct xdr_netobj clname;
400 	u32		flags;
401 	clientid_t	clientid;
402 	u32		seqid;
403 	int		spa_how;
404 };
405 
406 struct nfsd4_sequence {
407 	struct nfs4_sessionid	sessionid;		/* request/response */
408 	u32			seqid;			/* request/response */
409 	u32			slotid;			/* request/response */
410 	u32			maxslots;		/* request/response */
411 	u32			cachethis;		/* request */
412 #if 0
413 	u32			target_maxslots;	/* response */
414 #endif /* not yet */
415 	u32			status_flags;		/* response */
416 };
417 
418 struct nfsd4_destroy_session {
419 	struct nfs4_sessionid	sessionid;
420 };
421 
422 struct nfsd4_destroy_clientid {
423 	clientid_t clientid;
424 };
425 
426 struct nfsd4_reclaim_complete {
427 	u32 rca_one_fs;
428 };
429 
430 struct nfsd4_deviceid {
431 	u64			fsid_idx;
432 	u32			generation;
433 	u32			pad;
434 };
435 
436 struct nfsd4_layout_seg {
437 	u32			iomode;
438 	u64			offset;
439 	u64			length;
440 };
441 
442 struct nfsd4_getdeviceinfo {
443 	struct nfsd4_deviceid	gd_devid;	/* request */
444 	u32			gd_layout_type;	/* request */
445 	u32			gd_maxcount;	/* request */
446 	u32			gd_notify_types;/* request - response */
447 	void			*gd_device;	/* response */
448 };
449 
450 struct nfsd4_layoutget {
451 	u64			lg_minlength;	/* request */
452 	u32			lg_signal;	/* request */
453 	u32			lg_layout_type;	/* request */
454 	u32			lg_maxcount;	/* request */
455 	stateid_t		lg_sid;		/* request/response */
456 	struct nfsd4_layout_seg	lg_seg;		/* request/response */
457 	void			*lg_content;	/* response */
458 };
459 
460 struct nfsd4_layoutcommit {
461 	stateid_t		lc_sid;		/* request */
462 	struct nfsd4_layout_seg	lc_seg;		/* request */
463 	u32			lc_reclaim;	/* request */
464 	u32			lc_newoffset;	/* request */
465 	u64			lc_last_wr;	/* request */
466 	struct timespec		lc_mtime;	/* request */
467 	u32			lc_layout_type;	/* request */
468 	u32			lc_up_len;	/* layout length */
469 	void			*lc_up_layout;	/* decoded by callback */
470 	u32			lc_size_chg;	/* boolean for response */
471 	u64			lc_newsize;	/* response */
472 };
473 
474 struct nfsd4_layoutreturn {
475 	u32			lr_return_type;	/* request */
476 	u32			lr_layout_type;	/* request */
477 	struct nfsd4_layout_seg	lr_seg;		/* request */
478 	u32			lr_reclaim;	/* request */
479 	u32			lrf_body_len;	/* request */
480 	void			*lrf_body;	/* request */
481 	stateid_t		lr_sid;		/* request/response */
482 	u32			lrs_present;	/* response */
483 };
484 
485 struct nfsd4_fallocate {
486 	/* request */
487 	stateid_t	falloc_stateid;
488 	loff_t		falloc_offset;
489 	u64		falloc_length;
490 };
491 
492 struct nfsd4_seek {
493 	/* request */
494 	stateid_t	seek_stateid;
495 	loff_t		seek_offset;
496 	u32		seek_whence;
497 
498 	/* response */
499 	u32		seek_eof;
500 	loff_t		seek_pos;
501 };
502 
503 struct nfsd4_op {
504 	int					opnum;
505 	__be32					status;
506 	union {
507 		struct nfsd4_access		access;
508 		struct nfsd4_close		close;
509 		struct nfsd4_commit		commit;
510 		struct nfsd4_create		create;
511 		struct nfsd4_delegreturn	delegreturn;
512 		struct nfsd4_getattr		getattr;
513 		struct svc_fh *			getfh;
514 		struct nfsd4_link		link;
515 		struct nfsd4_lock		lock;
516 		struct nfsd4_lockt		lockt;
517 		struct nfsd4_locku		locku;
518 		struct nfsd4_lookup		lookup;
519 		struct nfsd4_verify		nverify;
520 		struct nfsd4_open		open;
521 		struct nfsd4_open_confirm	open_confirm;
522 		struct nfsd4_open_downgrade	open_downgrade;
523 		struct nfsd4_putfh		putfh;
524 		struct nfsd4_read		read;
525 		struct nfsd4_readdir		readdir;
526 		struct nfsd4_readlink		readlink;
527 		struct nfsd4_remove		remove;
528 		struct nfsd4_rename		rename;
529 		clientid_t			renew;
530 		struct nfsd4_secinfo		secinfo;
531 		struct nfsd4_setattr		setattr;
532 		struct nfsd4_setclientid	setclientid;
533 		struct nfsd4_setclientid_confirm setclientid_confirm;
534 		struct nfsd4_verify		verify;
535 		struct nfsd4_write		write;
536 		struct nfsd4_release_lockowner	release_lockowner;
537 
538 		/* NFSv4.1 */
539 		struct nfsd4_exchange_id	exchange_id;
540 		struct nfsd4_backchannel_ctl	backchannel_ctl;
541 		struct nfsd4_bind_conn_to_session bind_conn_to_session;
542 		struct nfsd4_create_session	create_session;
543 		struct nfsd4_destroy_session	destroy_session;
544 		struct nfsd4_sequence		sequence;
545 		struct nfsd4_reclaim_complete	reclaim_complete;
546 		struct nfsd4_test_stateid	test_stateid;
547 		struct nfsd4_free_stateid	free_stateid;
548 		struct nfsd4_getdeviceinfo	getdeviceinfo;
549 		struct nfsd4_layoutget		layoutget;
550 		struct nfsd4_layoutcommit	layoutcommit;
551 		struct nfsd4_layoutreturn	layoutreturn;
552 
553 		/* NFSv4.2 */
554 		struct nfsd4_fallocate		allocate;
555 		struct nfsd4_fallocate		deallocate;
556 		struct nfsd4_seek		seek;
557 	} u;
558 	struct nfs4_replay *			replay;
559 };
560 
561 bool nfsd4_cache_this_op(struct nfsd4_op *);
562 
563 /*
564  * Memory needed just for the duration of processing one compound:
565  */
566 struct svcxdr_tmpbuf {
567 	struct svcxdr_tmpbuf *next;
568 	char buf[];
569 };
570 
571 struct nfsd4_compoundargs {
572 	/* scratch variables for XDR decode */
573 	__be32 *			p;
574 	__be32 *			end;
575 	struct page **			pagelist;
576 	int				pagelen;
577 	__be32				tmp[8];
578 	__be32 *			tmpp;
579 	struct svcxdr_tmpbuf		*to_free;
580 
581 	struct svc_rqst			*rqstp;
582 
583 	u32				taglen;
584 	char *				tag;
585 	u32				minorversion;
586 	u32				opcnt;
587 	struct nfsd4_op			*ops;
588 	struct nfsd4_op			iops[8];
589 	int				cachetype;
590 };
591 
592 struct nfsd4_compoundres {
593 	/* scratch variables for XDR encode */
594 	struct xdr_stream		xdr;
595 	struct svc_rqst *		rqstp;
596 
597 	u32				taglen;
598 	char *				tag;
599 	u32				opcnt;
600 	__be32 *			tagp; /* tag, opcount encode location */
601 	struct nfsd4_compound_state	cstate;
602 };
603 
604 static inline bool nfsd4_is_solo_sequence(struct nfsd4_compoundres *resp)
605 {
606 	struct nfsd4_compoundargs *args = resp->rqstp->rq_argp;
607 	return resp->opcnt == 1 && args->ops[0].opnum == OP_SEQUENCE;
608 }
609 
610 static inline bool nfsd4_not_cached(struct nfsd4_compoundres *resp)
611 {
612 	return !(resp->cstate.slot->sl_flags & NFSD4_SLOT_CACHETHIS)
613 		|| nfsd4_is_solo_sequence(resp);
614 }
615 
616 static inline bool nfsd4_last_compound_op(struct svc_rqst *rqstp)
617 {
618 	struct nfsd4_compoundres *resp = rqstp->rq_resp;
619 	struct nfsd4_compoundargs *argp = rqstp->rq_argp;
620 
621 	return argp->opcnt == resp->opcnt;
622 }
623 
624 int nfsd4_max_reply(struct svc_rqst *rqstp, struct nfsd4_op *op);
625 void warn_on_nonidempotent_op(struct nfsd4_op *op);
626 
627 #define NFS4_SVC_XDRSIZE		sizeof(struct nfsd4_compoundargs)
628 
629 static inline void
630 set_change_info(struct nfsd4_change_info *cinfo, struct svc_fh *fhp)
631 {
632 	BUG_ON(!fhp->fh_pre_saved);
633 	cinfo->atomic = fhp->fh_post_saved;
634 	cinfo->change_supported = IS_I_VERSION(d_inode(fhp->fh_dentry));
635 
636 	cinfo->before_change = fhp->fh_pre_change;
637 	cinfo->after_change = fhp->fh_post_change;
638 	cinfo->before_ctime_sec = fhp->fh_pre_ctime.tv_sec;
639 	cinfo->before_ctime_nsec = fhp->fh_pre_ctime.tv_nsec;
640 	cinfo->after_ctime_sec = fhp->fh_post_attr.ctime.tv_sec;
641 	cinfo->after_ctime_nsec = fhp->fh_post_attr.ctime.tv_nsec;
642 
643 }
644 
645 int nfs4svc_encode_voidres(struct svc_rqst *, __be32 *, void *);
646 int nfs4svc_decode_compoundargs(struct svc_rqst *, __be32 *,
647 		struct nfsd4_compoundargs *);
648 int nfs4svc_encode_compoundres(struct svc_rqst *, __be32 *,
649 		struct nfsd4_compoundres *);
650 __be32 nfsd4_check_resp_size(struct nfsd4_compoundres *, u32);
651 void nfsd4_encode_operation(struct nfsd4_compoundres *, struct nfsd4_op *);
652 void nfsd4_encode_replay(struct xdr_stream *xdr, struct nfsd4_op *op);
653 __be32 nfsd4_encode_fattr_to_buf(__be32 **p, int words,
654 		struct svc_fh *fhp, struct svc_export *exp,
655 		struct dentry *dentry,
656 		u32 *bmval, struct svc_rqst *, int ignore_crossmnt);
657 extern __be32 nfsd4_setclientid(struct svc_rqst *rqstp,
658 		struct nfsd4_compound_state *,
659 		struct nfsd4_setclientid *setclid);
660 extern __be32 nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
661 		struct nfsd4_compound_state *,
662 		struct nfsd4_setclientid_confirm *setclientid_confirm);
663 extern __be32 nfsd4_exchange_id(struct svc_rqst *rqstp,
664 		struct nfsd4_compound_state *, struct nfsd4_exchange_id *);
665 extern __be32 nfsd4_backchannel_ctl(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_backchannel_ctl *);
666 extern __be32 nfsd4_bind_conn_to_session(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_bind_conn_to_session *);
667 extern __be32 nfsd4_create_session(struct svc_rqst *,
668 		struct nfsd4_compound_state *,
669 		struct nfsd4_create_session *);
670 extern __be32 nfsd4_sequence(struct svc_rqst *,
671 		struct nfsd4_compound_state *,
672 		struct nfsd4_sequence *);
673 extern void nfsd4_sequence_done(struct nfsd4_compoundres *resp);
674 extern __be32 nfsd4_destroy_session(struct svc_rqst *,
675 		struct nfsd4_compound_state *,
676 		struct nfsd4_destroy_session *);
677 extern __be32 nfsd4_destroy_clientid(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_destroy_clientid *);
678 __be32 nfsd4_reclaim_complete(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_reclaim_complete *);
679 extern __be32 nfsd4_process_open1(struct nfsd4_compound_state *,
680 		struct nfsd4_open *open, struct nfsd_net *nn);
681 extern __be32 nfsd4_process_open2(struct svc_rqst *rqstp,
682 		struct svc_fh *current_fh, struct nfsd4_open *open);
683 extern void nfsd4_cstate_clear_replay(struct nfsd4_compound_state *cstate);
684 extern void nfsd4_cleanup_open_state(struct nfsd4_compound_state *cstate,
685 		struct nfsd4_open *open);
686 extern __be32 nfsd4_open_confirm(struct svc_rqst *rqstp,
687 		struct nfsd4_compound_state *, struct nfsd4_open_confirm *oc);
688 extern __be32 nfsd4_close(struct svc_rqst *rqstp,
689 		struct nfsd4_compound_state *,
690 		struct nfsd4_close *close);
691 extern __be32 nfsd4_open_downgrade(struct svc_rqst *rqstp,
692 		struct nfsd4_compound_state *,
693 		struct nfsd4_open_downgrade *od);
694 extern __be32 nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
695 		struct nfsd4_lock *lock);
696 extern __be32 nfsd4_lockt(struct svc_rqst *rqstp,
697 		struct nfsd4_compound_state *,
698 		struct nfsd4_lockt *lockt);
699 extern __be32 nfsd4_locku(struct svc_rqst *rqstp,
700 		struct nfsd4_compound_state *,
701 		struct nfsd4_locku *locku);
702 extern __be32
703 nfsd4_release_lockowner(struct svc_rqst *rqstp,
704 		struct nfsd4_compound_state *,
705 		struct nfsd4_release_lockowner *rlockowner);
706 extern int nfsd4_release_compoundargs(void *rq, __be32 *p, void *resp);
707 extern __be32 nfsd4_delegreturn(struct svc_rqst *rqstp,
708 		struct nfsd4_compound_state *, struct nfsd4_delegreturn *dr);
709 extern __be32 nfsd4_renew(struct svc_rqst *rqstp,
710 			  struct nfsd4_compound_state *, clientid_t *clid);
711 extern __be32 nfsd4_test_stateid(struct svc_rqst *rqstp,
712 		struct nfsd4_compound_state *, struct nfsd4_test_stateid *test_stateid);
713 extern __be32 nfsd4_free_stateid(struct svc_rqst *rqstp,
714 		struct nfsd4_compound_state *, struct nfsd4_free_stateid *free_stateid);
715 extern void nfsd4_bump_seqid(struct nfsd4_compound_state *, __be32 nfserr);
716 
717 #endif
718 
719 /*
720  * Local variables:
721  *  c-basic-offset: 8
722  * End:
723  */
724