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Linux 2.6.33-rc2
[pohmelfs.git] / include / linux / nfs_xdr.h
blob89b28812ec241002463621d75d93b3621f079221
1 #ifndef _LINUX_NFS_XDR_H
2 #define _LINUX_NFS_XDR_H
3
4 #include <linux/nfsacl.h>
5 #include <linux/nfs3.h>
6
7 /*
8 * To change the maximum rsize and wsize supported by the NFS client, adjust
9 * NFS_MAX_FILE_IO_SIZE. 64KB is a typical maximum, but some servers can
10 * support a megabyte or more. The default is left at 4096 bytes, which is
11 * reasonable for NFS over UDP.
12 */
13 #define NFS_MAX_FILE_IO_SIZE (1048576U)
14 #define NFS_DEF_FILE_IO_SIZE (4096U)
15 #define NFS_MIN_FILE_IO_SIZE (1024U)
16
17 struct nfs_fsid {
18 uint64_t major;
19 uint64_t minor;
20 };
21
22 /*
23 * Helper for checking equality between 2 fsids.
24 */
25 static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b)
26 {
27 return a->major == b->major && a->minor == b->minor;
28 }
29
30 struct nfs_fattr {
31 unsigned int valid; /* which fields are valid */
32 umode_t mode;
33 __u32 nlink;
34 __u32 uid;
35 __u32 gid;
36 dev_t rdev;
37 __u64 size;
38 union {
39 struct {
40 __u32 blocksize;
41 __u32 blocks;
42 } nfs2;
43 struct {
44 __u64 used;
45 } nfs3;
46 } du;
47 struct nfs_fsid fsid;
48 __u64 fileid;
49 struct timespec atime;
50 struct timespec mtime;
51 struct timespec ctime;
52 __u64 change_attr; /* NFSv4 change attribute */
53 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */
54 __u64 pre_size; /* pre_op_attr.size */
55 struct timespec pre_mtime; /* pre_op_attr.mtime */
56 struct timespec pre_ctime; /* pre_op_attr.ctime */
57 unsigned long time_start;
58 unsigned long gencount;
59 };
60
61 #define NFS_ATTR_FATTR_TYPE (1U << 0)
62 #define NFS_ATTR_FATTR_MODE (1U << 1)
63 #define NFS_ATTR_FATTR_NLINK (1U << 2)
64 #define NFS_ATTR_FATTR_OWNER (1U << 3)
65 #define NFS_ATTR_FATTR_GROUP (1U << 4)
66 #define NFS_ATTR_FATTR_RDEV (1U << 5)
67 #define NFS_ATTR_FATTR_SIZE (1U << 6)
68 #define NFS_ATTR_FATTR_PRESIZE (1U << 7)
69 #define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8)
70 #define NFS_ATTR_FATTR_SPACE_USED (1U << 9)
71 #define NFS_ATTR_FATTR_FSID (1U << 10)
72 #define NFS_ATTR_FATTR_FILEID (1U << 11)
73 #define NFS_ATTR_FATTR_ATIME (1U << 12)
74 #define NFS_ATTR_FATTR_MTIME (1U << 13)
75 #define NFS_ATTR_FATTR_CTIME (1U << 14)
76 #define NFS_ATTR_FATTR_PREMTIME (1U << 15)
77 #define NFS_ATTR_FATTR_PRECTIME (1U << 16)
78 #define NFS_ATTR_FATTR_CHANGE (1U << 17)
79 #define NFS_ATTR_FATTR_PRECHANGE (1U << 18)
80 #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 19) /* NFSv4 referral */
81
82 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
83 | NFS_ATTR_FATTR_MODE \
84 | NFS_ATTR_FATTR_NLINK \
85 | NFS_ATTR_FATTR_OWNER \
86 | NFS_ATTR_FATTR_GROUP \
87 | NFS_ATTR_FATTR_RDEV \
88 | NFS_ATTR_FATTR_SIZE \
89 | NFS_ATTR_FATTR_FSID \
90 | NFS_ATTR_FATTR_FILEID \
91 | NFS_ATTR_FATTR_ATIME \
92 | NFS_ATTR_FATTR_MTIME \
93 | NFS_ATTR_FATTR_CTIME)
94 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
95 | NFS_ATTR_FATTR_BLOCKS_USED)
96 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
97 | NFS_ATTR_FATTR_SPACE_USED)
98 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
99 | NFS_ATTR_FATTR_SPACE_USED \
100 | NFS_ATTR_FATTR_CHANGE)
101
102 /*
103 * Info on the file system
104 */
105 struct nfs_fsinfo {
106 struct nfs_fattr *fattr; /* Post-op attributes */
107 __u32 rtmax; /* max. read transfer size */
108 __u32 rtpref; /* pref. read transfer size */
109 __u32 rtmult; /* reads should be multiple of this */
110 __u32 wtmax; /* max. write transfer size */
111 __u32 wtpref; /* pref. write transfer size */
112 __u32 wtmult; /* writes should be multiple of this */
113 __u32 dtpref; /* pref. readdir transfer size */
114 __u64 maxfilesize;
115 __u32 lease_time; /* in seconds */
116 };
117
118 struct nfs_fsstat {
119 struct nfs_fattr *fattr; /* Post-op attributes */
120 __u64 tbytes; /* total size in bytes */
121 __u64 fbytes; /* # of free bytes */
122 __u64 abytes; /* # of bytes available to user */
123 __u64 tfiles; /* # of files */
124 __u64 ffiles; /* # of free files */
125 __u64 afiles; /* # of files available to user */
126 };
127
128 struct nfs2_fsstat {
129 __u32 tsize; /* Server transfer size */
130 __u32 bsize; /* Filesystem block size */
131 __u32 blocks; /* No. of "bsize" blocks on filesystem */
132 __u32 bfree; /* No. of free "bsize" blocks */
133 __u32 bavail; /* No. of available "bsize" blocks */
134 };
135
136 struct nfs_pathconf {
137 struct nfs_fattr *fattr; /* Post-op attributes */
138 __u32 max_link; /* max # of hard links */
139 __u32 max_namelen; /* max name length */
140 };
141
142 struct nfs4_change_info {
143 u32 atomic;
144 u64 before;
145 u64 after;
146 };
147
148 struct nfs_seqid;
149
150 /* nfs41 sessions channel attributes */
151 struct nfs4_channel_attrs {
152 u32 headerpadsz;
153 u32 max_rqst_sz;
154 u32 max_resp_sz;
155 u32 max_resp_sz_cached;
156 u32 max_ops;
157 u32 max_reqs;
158 };
159
160 /* nfs41 sessions slot seqid */
161 struct nfs4_slot {
162 u32 seq_nr;
163 };
164
165 struct nfs4_sequence_args {
166 struct nfs4_session *sa_session;
167 u8 sa_slotid;
168 u8 sa_cache_this;
169 };
170
171 struct nfs4_sequence_res {
172 struct nfs4_session *sr_session;
173 u8 sr_slotid; /* slot used to send request */
174 int sr_status; /* sequence operation status */
175 unsigned long sr_renewal_time;
176 u32 sr_status_flags;
177 };
178
179 struct nfs4_get_lease_time_args {
180 struct nfs4_sequence_args la_seq_args;
181 };
182
183 struct nfs4_get_lease_time_res {
184 struct nfs_fsinfo *lr_fsinfo;
185 struct nfs4_sequence_res lr_seq_res;
186 };
187
188 /*
189 * Arguments to the open call.
190 */
191 struct nfs_openargs {
192 const struct nfs_fh * fh;
193 struct nfs_seqid * seqid;
194 int open_flags;
195 fmode_t fmode;
196 __u64 clientid;
197 __u64 id;
198 union {
199 struct iattr * attrs; /* UNCHECKED, GUARDED */
200 nfs4_verifier verifier; /* EXCLUSIVE */
201 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
202 fmode_t delegation_type; /* CLAIM_PREVIOUS */
203 } u;
204 const struct qstr * name;
205 const struct nfs_server *server; /* Needed for ID mapping */
206 const u32 * bitmask;
207 __u32 claim;
208 struct nfs4_sequence_args seq_args;
209 };
210
211 struct nfs_openres {
212 nfs4_stateid stateid;
213 struct nfs_fh fh;
214 struct nfs4_change_info cinfo;
215 __u32 rflags;
216 struct nfs_fattr * f_attr;
217 struct nfs_fattr * dir_attr;
218 struct nfs_seqid * seqid;
219 const struct nfs_server *server;
220 fmode_t delegation_type;
221 nfs4_stateid delegation;
222 __u32 do_recall;
223 __u64 maxsize;
224 __u32 attrset[NFS4_BITMAP_SIZE];
225 struct nfs4_sequence_res seq_res;
226 };
227
228 /*
229 * Arguments to the open_confirm call.
230 */
231 struct nfs_open_confirmargs {
232 const struct nfs_fh * fh;
233 nfs4_stateid * stateid;
234 struct nfs_seqid * seqid;
235 };
236
237 struct nfs_open_confirmres {
238 nfs4_stateid stateid;
239 struct nfs_seqid * seqid;
240 };
241
242 /*
243 * Arguments to the close call.
244 */
245 struct nfs_closeargs {
246 struct nfs_fh * fh;
247 nfs4_stateid * stateid;
248 struct nfs_seqid * seqid;
249 fmode_t fmode;
250 const u32 * bitmask;
251 struct nfs4_sequence_args seq_args;
252 };
253
254 struct nfs_closeres {
255 nfs4_stateid stateid;
256 struct nfs_fattr * fattr;
257 struct nfs_seqid * seqid;
258 const struct nfs_server *server;
259 struct nfs4_sequence_res seq_res;
260 };
261 /*
262 * * Arguments to the lock,lockt, and locku call.
263 * */
264 struct nfs_lowner {
265 __u64 clientid;
266 __u64 id;
267 };
268
269 struct nfs_lock_args {
270 struct nfs_fh * fh;
271 struct file_lock * fl;
272 struct nfs_seqid * lock_seqid;
273 nfs4_stateid * lock_stateid;
274 struct nfs_seqid * open_seqid;
275 nfs4_stateid * open_stateid;
276 struct nfs_lowner lock_owner;
277 unsigned char block : 1;
278 unsigned char reclaim : 1;
279 unsigned char new_lock_owner : 1;
280 struct nfs4_sequence_args seq_args;
281 };
282
283 struct nfs_lock_res {
284 nfs4_stateid stateid;
285 struct nfs_seqid * lock_seqid;
286 struct nfs_seqid * open_seqid;
287 struct nfs4_sequence_res seq_res;
288 };
289
290 struct nfs_locku_args {
291 struct nfs_fh * fh;
292 struct file_lock * fl;
293 struct nfs_seqid * seqid;
294 nfs4_stateid * stateid;
295 struct nfs4_sequence_args seq_args;
296 };
297
298 struct nfs_locku_res {
299 nfs4_stateid stateid;
300 struct nfs_seqid * seqid;
301 struct nfs4_sequence_res seq_res;
302 };
303
304 struct nfs_lockt_args {
305 struct nfs_fh * fh;
306 struct file_lock * fl;
307 struct nfs_lowner lock_owner;
308 struct nfs4_sequence_args seq_args;
309 };
310
311 struct nfs_lockt_res {
312 struct file_lock * denied; /* LOCK, LOCKT failed */
313 struct nfs4_sequence_res seq_res;
314 };
315
316 struct nfs4_delegreturnargs {
317 const struct nfs_fh *fhandle;
318 const nfs4_stateid *stateid;
319 const u32 * bitmask;
320 struct nfs4_sequence_args seq_args;
321 };
322
323 struct nfs4_delegreturnres {
324 struct nfs_fattr * fattr;
325 const struct nfs_server *server;
326 struct nfs4_sequence_res seq_res;
327 };
328
329 /*
330 * Arguments to the read call.
331 */
332 struct nfs_readargs {
333 struct nfs_fh * fh;
334 struct nfs_open_context *context;
335 __u64 offset;
336 __u32 count;
337 unsigned int pgbase;
338 struct page ** pages;
339 struct nfs4_sequence_args seq_args;
340 };
341
342 struct nfs_readres {
343 struct nfs_fattr * fattr;
344 __u32 count;
345 int eof;
346 struct nfs4_sequence_res seq_res;
347 };
348
349 /*
350 * Arguments to the write call.
351 */
352 struct nfs_writeargs {
353 struct nfs_fh * fh;
354 struct nfs_open_context *context;
355 __u64 offset;
356 __u32 count;
357 enum nfs3_stable_how stable;
358 unsigned int pgbase;
359 struct page ** pages;
360 const u32 * bitmask;
361 struct nfs4_sequence_args seq_args;
362 };
363
364 struct nfs_writeverf {
365 enum nfs3_stable_how committed;
366 __be32 verifier[2];
367 };
368
369 struct nfs_writeres {
370 struct nfs_fattr * fattr;
371 struct nfs_writeverf * verf;
372 __u32 count;
373 const struct nfs_server *server;
374 struct nfs4_sequence_res seq_res;
375 };
376
377 /*
378 * Common arguments to the unlink call
379 */
380 struct nfs_removeargs {
381 const struct nfs_fh *fh;
382 struct qstr name;
383 const u32 * bitmask;
384 struct nfs4_sequence_args seq_args;
385 };
386
387 struct nfs_removeres {
388 const struct nfs_server *server;
389 struct nfs4_change_info cinfo;
390 struct nfs_fattr dir_attr;
391 struct nfs4_sequence_res seq_res;
392 };
393
394 /*
395 * Argument struct for decode_entry function
396 */
397 struct nfs_entry {
398 __u64 ino;
399 __u64 cookie,
400 prev_cookie;
401 const char * name;
402 unsigned int len;
403 int eof;
404 struct nfs_fh * fh;
405 struct nfs_fattr * fattr;
406 };
407
408 /*
409 * The following types are for NFSv2 only.
410 */
411 struct nfs_sattrargs {
412 struct nfs_fh * fh;
413 struct iattr * sattr;
414 };
415
416 struct nfs_diropargs {
417 struct nfs_fh * fh;
418 const char * name;
419 unsigned int len;
420 };
421
422 struct nfs_createargs {
423 struct nfs_fh * fh;
424 const char * name;
425 unsigned int len;
426 struct iattr * sattr;
427 };
428
429 struct nfs_renameargs {
430 struct nfs_fh * fromfh;
431 const char * fromname;
432 unsigned int fromlen;
433 struct nfs_fh * tofh;
434 const char * toname;
435 unsigned int tolen;
436 };
437
438 struct nfs_setattrargs {
439 struct nfs_fh * fh;
440 nfs4_stateid stateid;
441 struct iattr * iap;
442 const struct nfs_server * server; /* Needed for name mapping */
443 const u32 * bitmask;
444 struct nfs4_sequence_args seq_args;
445 };
446
447 struct nfs_setaclargs {
448 struct nfs_fh * fh;
449 size_t acl_len;
450 unsigned int acl_pgbase;
451 struct page ** acl_pages;
452 struct nfs4_sequence_args seq_args;
453 };
454
455 struct nfs_setaclres {
456 struct nfs4_sequence_res seq_res;
457 };
458
459 struct nfs_getaclargs {
460 struct nfs_fh * fh;
461 size_t acl_len;
462 unsigned int acl_pgbase;
463 struct page ** acl_pages;
464 struct nfs4_sequence_args seq_args;
465 };
466
467 struct nfs_getaclres {
468 size_t acl_len;
469 struct nfs4_sequence_res seq_res;
470 };
471
472 struct nfs_setattrres {
473 struct nfs_fattr * fattr;
474 const struct nfs_server * server;
475 struct nfs4_sequence_res seq_res;
476 };
477
478 struct nfs_linkargs {
479 struct nfs_fh * fromfh;
480 struct nfs_fh * tofh;
481 const char * toname;
482 unsigned int tolen;
483 };
484
485 struct nfs_symlinkargs {
486 struct nfs_fh * fromfh;
487 const char * fromname;
488 unsigned int fromlen;
489 struct page ** pages;
490 unsigned int pathlen;
491 struct iattr * sattr;
492 };
493
494 struct nfs_readdirargs {
495 struct nfs_fh * fh;
496 __u32 cookie;
497 unsigned int count;
498 struct page ** pages;
499 };
500
501 struct nfs3_getaclargs {
502 struct nfs_fh * fh;
503 int mask;
504 struct page ** pages;
505 };
506
507 struct nfs3_setaclargs {
508 struct inode * inode;
509 int mask;
510 struct posix_acl * acl_access;
511 struct posix_acl * acl_default;
512 size_t len;
513 unsigned int npages;
514 struct page ** pages;
515 };
516
517 struct nfs_diropok {
518 struct nfs_fh * fh;
519 struct nfs_fattr * fattr;
520 };
521
522 struct nfs_readlinkargs {
523 struct nfs_fh * fh;
524 unsigned int pgbase;
525 unsigned int pglen;
526 struct page ** pages;
527 };
528
529 struct nfs3_sattrargs {
530 struct nfs_fh * fh;
531 struct iattr * sattr;
532 unsigned int guard;
533 struct timespec guardtime;
534 };
535
536 struct nfs3_diropargs {
537 struct nfs_fh * fh;
538 const char * name;
539 unsigned int len;
540 };
541
542 struct nfs3_accessargs {
543 struct nfs_fh * fh;
544 __u32 access;
545 };
546
547 struct nfs3_createargs {
548 struct nfs_fh * fh;
549 const char * name;
550 unsigned int len;
551 struct iattr * sattr;
552 enum nfs3_createmode createmode;
553 __be32 verifier[2];
554 };
555
556 struct nfs3_mkdirargs {
557 struct nfs_fh * fh;
558 const char * name;
559 unsigned int len;
560 struct iattr * sattr;
561 };
562
563 struct nfs3_symlinkargs {
564 struct nfs_fh * fromfh;
565 const char * fromname;
566 unsigned int fromlen;
567 struct page ** pages;
568 unsigned int pathlen;
569 struct iattr * sattr;
570 };
571
572 struct nfs3_mknodargs {
573 struct nfs_fh * fh;
574 const char * name;
575 unsigned int len;
576 enum nfs3_ftype type;
577 struct iattr * sattr;
578 dev_t rdev;
579 };
580
581 struct nfs3_renameargs {
582 struct nfs_fh * fromfh;
583 const char * fromname;
584 unsigned int fromlen;
585 struct nfs_fh * tofh;
586 const char * toname;
587 unsigned int tolen;
588 };
589
590 struct nfs3_linkargs {
591 struct nfs_fh * fromfh;
592 struct nfs_fh * tofh;
593 const char * toname;
594 unsigned int tolen;
595 };
596
597 struct nfs3_readdirargs {
598 struct nfs_fh * fh;
599 __u64 cookie;
600 __be32 verf[2];
601 int plus;
602 unsigned int count;
603 struct page ** pages;
604 };
605
606 struct nfs3_diropres {
607 struct nfs_fattr * dir_attr;
608 struct nfs_fh * fh;
609 struct nfs_fattr * fattr;
610 };
611
612 struct nfs3_accessres {
613 struct nfs_fattr * fattr;
614 __u32 access;
615 };
616
617 struct nfs3_readlinkargs {
618 struct nfs_fh * fh;
619 unsigned int pgbase;
620 unsigned int pglen;
621 struct page ** pages;
622 };
623
624 struct nfs3_renameres {
625 struct nfs_fattr * fromattr;
626 struct nfs_fattr * toattr;
627 };
628
629 struct nfs3_linkres {
630 struct nfs_fattr * dir_attr;
631 struct nfs_fattr * fattr;
632 };
633
634 struct nfs3_readdirres {
635 struct nfs_fattr * dir_attr;
636 __be32 * verf;
637 int plus;
638 };
639
640 struct nfs3_getaclres {
641 struct nfs_fattr * fattr;
642 int mask;
643 unsigned int acl_access_count;
644 unsigned int acl_default_count;
645 struct posix_acl * acl_access;
646 struct posix_acl * acl_default;
647 };
648
649 #ifdef CONFIG_NFS_V4
650
651 typedef u64 clientid4;
652
653 struct nfs4_accessargs {
654 const struct nfs_fh * fh;
655 const u32 * bitmask;
656 u32 access;
657 struct nfs4_sequence_args seq_args;
658 };
659
660 struct nfs4_accessres {
661 const struct nfs_server * server;
662 struct nfs_fattr * fattr;
663 u32 supported;
664 u32 access;
665 struct nfs4_sequence_res seq_res;
666 };
667
668 struct nfs4_create_arg {
669 u32 ftype;
670 union {
671 struct {
672 struct page ** pages;
673 unsigned int len;
674 } symlink; /* NF4LNK */
675 struct {
676 u32 specdata1;
677 u32 specdata2;
678 } device; /* NF4BLK, NF4CHR */
679 } u;
680 const struct qstr * name;
681 const struct nfs_server * server;
682 const struct iattr * attrs;
683 const struct nfs_fh * dir_fh;
684 const u32 * bitmask;
685 struct nfs4_sequence_args seq_args;
686 };
687
688 struct nfs4_create_res {
689 const struct nfs_server * server;
690 struct nfs_fh * fh;
691 struct nfs_fattr * fattr;
692 struct nfs4_change_info dir_cinfo;
693 struct nfs_fattr * dir_fattr;
694 struct nfs4_sequence_res seq_res;
695 };
696
697 struct nfs4_fsinfo_arg {
698 const struct nfs_fh * fh;
699 const u32 * bitmask;
700 struct nfs4_sequence_args seq_args;
701 };
702
703 struct nfs4_fsinfo_res {
704 struct nfs_fsinfo *fsinfo;
705 struct nfs4_sequence_res seq_res;
706 };
707
708 struct nfs4_getattr_arg {
709 const struct nfs_fh * fh;
710 const u32 * bitmask;
711 struct nfs4_sequence_args seq_args;
712 };
713
714 struct nfs4_getattr_res {
715 const struct nfs_server * server;
716 struct nfs_fattr * fattr;
717 struct nfs4_sequence_res seq_res;
718 };
719
720 struct nfs4_link_arg {
721 const struct nfs_fh * fh;
722 const struct nfs_fh * dir_fh;
723 const struct qstr * name;
724 const u32 * bitmask;
725 struct nfs4_sequence_args seq_args;
726 };
727
728 struct nfs4_link_res {
729 const struct nfs_server * server;
730 struct nfs_fattr * fattr;
731 struct nfs4_change_info cinfo;
732 struct nfs_fattr * dir_attr;
733 struct nfs4_sequence_res seq_res;
734 };
735
736
737 struct nfs4_lookup_arg {
738 const struct nfs_fh * dir_fh;
739 const struct qstr * name;
740 const u32 * bitmask;
741 struct nfs4_sequence_args seq_args;
742 };
743
744 struct nfs4_lookup_res {
745 const struct nfs_server * server;
746 struct nfs_fattr * fattr;
747 struct nfs_fh * fh;
748 struct nfs4_sequence_res seq_res;
749 };
750
751 struct nfs4_lookup_root_arg {
752 const u32 * bitmask;
753 struct nfs4_sequence_args seq_args;
754 };
755
756 struct nfs4_pathconf_arg {
757 const struct nfs_fh * fh;
758 const u32 * bitmask;
759 struct nfs4_sequence_args seq_args;
760 };
761
762 struct nfs4_pathconf_res {
763 struct nfs_pathconf *pathconf;
764 struct nfs4_sequence_res seq_res;
765 };
766
767 struct nfs4_readdir_arg {
768 const struct nfs_fh * fh;
769 u64 cookie;
770 nfs4_verifier verifier;
771 u32 count;
772 struct page ** pages; /* zero-copy data */
773 unsigned int pgbase; /* zero-copy data */
774 const u32 * bitmask;
775 struct nfs4_sequence_args seq_args;
776 };
777
778 struct nfs4_readdir_res {
779 nfs4_verifier verifier;
780 unsigned int pgbase;
781 struct nfs4_sequence_res seq_res;
782 };
783
784 struct nfs4_readlink {
785 const struct nfs_fh * fh;
786 unsigned int pgbase;
787 unsigned int pglen; /* zero-copy data */
788 struct page ** pages; /* zero-copy data */
789 struct nfs4_sequence_args seq_args;
790 };
791
792 struct nfs4_readlink_res {
793 struct nfs4_sequence_res seq_res;
794 };
795
796 struct nfs4_rename_arg {
797 const struct nfs_fh * old_dir;
798 const struct nfs_fh * new_dir;
799 const struct qstr * old_name;
800 const struct qstr * new_name;
801 const u32 * bitmask;
802 struct nfs4_sequence_args seq_args;
803 };
804
805 struct nfs4_rename_res {
806 const struct nfs_server * server;
807 struct nfs4_change_info old_cinfo;
808 struct nfs_fattr * old_fattr;
809 struct nfs4_change_info new_cinfo;
810 struct nfs_fattr * new_fattr;
811 struct nfs4_sequence_res seq_res;
812 };
813
814 #define NFS4_SETCLIENTID_NAMELEN (127)
815 struct nfs4_setclientid {
816 const nfs4_verifier * sc_verifier;
817 unsigned int sc_name_len;
818 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
819 u32 sc_prog;
820 unsigned int sc_netid_len;
821 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
822 unsigned int sc_uaddr_len;
823 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
824 u32 sc_cb_ident;
825 };
826
827 struct nfs4_statfs_arg {
828 const struct nfs_fh * fh;
829 const u32 * bitmask;
830 struct nfs4_sequence_args seq_args;
831 };
832
833 struct nfs4_statfs_res {
834 struct nfs_fsstat *fsstat;
835 struct nfs4_sequence_res seq_res;
836 };
837
838 struct nfs4_server_caps_arg {
839 struct nfs_fh *fhandle;
840 struct nfs4_sequence_args seq_args;
841 };
842
843 struct nfs4_server_caps_res {
844 u32 attr_bitmask[2];
845 u32 acl_bitmask;
846 u32 has_links;
847 u32 has_symlinks;
848 struct nfs4_sequence_res seq_res;
849 };
850
851 struct nfs4_string {
852 unsigned int len;
853 char *data;
854 };
855
856 #define NFS4_PATHNAME_MAXCOMPONENTS 512
857 struct nfs4_pathname {
858 unsigned int ncomponents;
859 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
860 };
861
862 #define NFS4_FS_LOCATION_MAXSERVERS 10
863 struct nfs4_fs_location {
864 unsigned int nservers;
865 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
866 struct nfs4_pathname rootpath;
867 };
868
869 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
870 struct nfs4_fs_locations {
871 struct nfs_fattr fattr;
872 const struct nfs_server *server;
873 struct nfs4_pathname fs_path;
874 int nlocations;
875 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
876 };
877
878 struct nfs4_fs_locations_arg {
879 const struct nfs_fh *dir_fh;
880 const struct qstr *name;
881 struct page *page;
882 const u32 *bitmask;
883 struct nfs4_sequence_args seq_args;
884 };
885
886 struct nfs4_fs_locations_res {
887 struct nfs4_fs_locations *fs_locations;
888 struct nfs4_sequence_res seq_res;
889 };
890
891 #endif /* CONFIG_NFS_V4 */
892
893 struct nfstime4 {
894 u64 seconds;
895 u32 nseconds;
896 };
897
898 #ifdef CONFIG_NFS_V4_1
899 struct nfs_impl_id4 {
900 u32 domain_len;
901 char *domain;
902 u32 name_len;
903 char *name;
904 struct nfstime4 date;
905 };
906
907 #define NFS4_EXCHANGE_ID_LEN (48)
908 struct nfs41_exchange_id_args {
909 struct nfs_client *client;
910 nfs4_verifier *verifier;
911 unsigned int id_len;
912 char id[NFS4_EXCHANGE_ID_LEN];
913 u32 flags;
914 };
915
916 struct server_owner {
917 uint64_t minor_id;
918 uint32_t major_id_sz;
919 char major_id[NFS4_OPAQUE_LIMIT];
920 };
921
922 struct server_scope {
923 uint32_t server_scope_sz;
924 char server_scope[NFS4_OPAQUE_LIMIT];
925 };
926
927 struct nfs41_exchange_id_res {
928 struct nfs_client *client;
929 u32 flags;
930 };
931
932 struct nfs41_create_session_args {
933 struct nfs_client *client;
934 uint32_t flags;
935 uint32_t cb_program;
936 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
937 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
938 };
939
940 struct nfs41_create_session_res {
941 struct nfs_client *client;
942 };
943
944 struct nfs41_reclaim_complete_args {
945 /* In the future extend to include curr_fh for use with migration */
946 unsigned char one_fs:1;
947 struct nfs4_sequence_args seq_args;
948 };
949
950 struct nfs41_reclaim_complete_res {
951 struct nfs4_sequence_res seq_res;
952 };
953 #endif /* CONFIG_NFS_V4_1 */
954
955 struct nfs_page;
956
957 #define NFS_PAGEVEC_SIZE (8U)
958
959 struct nfs_read_data {
960 int flags;
961 struct rpc_task task;
962 struct inode *inode;
963 struct rpc_cred *cred;
964 struct nfs_fattr fattr; /* fattr storage */
965 struct list_head pages; /* Coalesced read requests */
966 struct nfs_page *req; /* multi ops per nfs_page */
967 struct page **pagevec;
968 unsigned int npages; /* Max length of pagevec */
969 struct nfs_readargs args;
970 struct nfs_readres res;
971 #ifdef CONFIG_NFS_V4
972 unsigned long timestamp; /* For lease renewal */
973 #endif
974 struct page *page_array[NFS_PAGEVEC_SIZE];
975 };
976
977 struct nfs_write_data {
978 int flags;
979 struct rpc_task task;
980 struct inode *inode;
981 struct rpc_cred *cred;
982 struct nfs_fattr fattr;
983 struct nfs_writeverf verf;
984 struct list_head pages; /* Coalesced requests we wish to flush */
985 struct nfs_page *req; /* multi ops per nfs_page */
986 struct page **pagevec;
987 unsigned int npages; /* Max length of pagevec */
988 struct nfs_writeargs args; /* argument struct */
989 struct nfs_writeres res; /* result struct */
990 #ifdef CONFIG_NFS_V4
991 unsigned long timestamp; /* For lease renewal */
992 #endif
993 struct page *page_array[NFS_PAGEVEC_SIZE];
994 };
995
996 struct nfs_access_entry;
997
998 /*
999 * RPC procedure vector for NFSv2/NFSv3 demuxing
1000 */
1001 struct nfs_rpc_ops {
1002 u32 version; /* Protocol version */
1003 const struct dentry_operations *dentry_ops;
1004 const struct inode_operations *dir_inode_ops;
1005 const struct inode_operations *file_inode_ops;
1006
1007 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1008 struct nfs_fsinfo *);
1009 int (*lookupfh)(struct nfs_server *, struct nfs_fh *,
1010 struct qstr *, struct nfs_fh *,
1011 struct nfs_fattr *);
1012 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1013 struct nfs_fattr *);
1014 int (*setattr) (struct dentry *, struct nfs_fattr *,
1015 struct iattr *);
1016 int (*lookup) (struct inode *, struct qstr *,
1017 struct nfs_fh *, struct nfs_fattr *);
1018 int (*access) (struct inode *, struct nfs_access_entry *);
1019 int (*readlink)(struct inode *, struct page *, unsigned int,
1020 unsigned int);
1021 int (*create) (struct inode *, struct dentry *,
1022 struct iattr *, int, struct nameidata *);
1023 int (*remove) (struct inode *, struct qstr *);
1024 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1025 int (*unlink_done) (struct rpc_task *, struct inode *);
1026 int (*rename) (struct inode *, struct qstr *,
1027 struct inode *, struct qstr *);
1028 int (*link) (struct inode *, struct inode *, struct qstr *);
1029 int (*symlink) (struct inode *, struct dentry *, struct page *,
1030 unsigned int, struct iattr *);
1031 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1032 int (*rmdir) (struct inode *, struct qstr *);
1033 int (*readdir) (struct dentry *, struct rpc_cred *,
1034 u64, struct page *, unsigned int, int);
1035 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1036 dev_t);
1037 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1038 struct nfs_fsstat *);
1039 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1040 struct nfs_fsinfo *);
1041 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1042 struct nfs_pathconf *);
1043 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1044 __be32 *(*decode_dirent)(__be32 *, struct nfs_entry *, int plus);
1045 void (*read_setup) (struct nfs_read_data *, struct rpc_message *);
1046 int (*read_done) (struct rpc_task *, struct nfs_read_data *);
1047 void (*write_setup) (struct nfs_write_data *, struct rpc_message *);
1048 int (*write_done) (struct rpc_task *, struct nfs_write_data *);
1049 void (*commit_setup) (struct nfs_write_data *, struct rpc_message *);
1050 int (*commit_done) (struct rpc_task *, struct nfs_write_data *);
1051 int (*lock)(struct file *, int, struct file_lock *);
1052 int (*lock_check_bounds)(const struct file_lock *);
1053 void (*clear_acl_cache)(struct inode *);
1054 void (*close_context)(struct nfs_open_context *ctx, int);
1055 };
1056
1057 /*
1058 * NFS_CALL(getattr, inode, (fattr));
1059 * into
1060 * NFS_PROTO(inode)->getattr(fattr);
1061 */
1062 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1063
1064 /*
1065 * Function vectors etc. for the NFS client
1066 */
1067 extern const struct nfs_rpc_ops nfs_v2_clientops;
1068 extern const struct nfs_rpc_ops nfs_v3_clientops;
1069 extern const struct nfs_rpc_ops nfs_v4_clientops;
1070 extern struct rpc_version nfs_version2;
1071 extern struct rpc_version nfs_version3;
1072 extern struct rpc_version nfs_version4;
1073
1074 extern struct rpc_version nfsacl_version3;
1075 extern struct rpc_program nfsacl_program;
1076
1077 #endif