?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
NFS: add a struct nfs_commit_data to replace nfs_write_data in commits
[linux-2.6.git] / include / linux / nfs_xdr.h
blob8fb036a0d489c5e291f7e61d509dfb40bcfcd081
1 #ifndef _LINUX_NFS_XDR_H
2 #define _LINUX_NFS_XDR_H
3
4 #include <linux/nfsacl.h>
5 #include <linux/sunrpc/gss_api.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 /* Forward declaration for NFS v3 */
18 struct nfs4_secinfo_flavors;
19
20 struct nfs4_string {
21 unsigned int len;
22 char *data;
23 };
24
25 struct nfs_fsid {
26 uint64_t major;
27 uint64_t minor;
28 };
29
30 /*
31 * Helper for checking equality between 2 fsids.
32 */
33 static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b)
34 {
35 return a->major == b->major && a->minor == b->minor;
36 }
37
38 struct nfs_fattr {
39 unsigned int valid; /* which fields are valid */
40 umode_t mode;
41 __u32 nlink;
42 __u32 uid;
43 __u32 gid;
44 dev_t rdev;
45 __u64 size;
46 union {
47 struct {
48 __u32 blocksize;
49 __u32 blocks;
50 } nfs2;
51 struct {
52 __u64 used;
53 } nfs3;
54 } du;
55 struct nfs_fsid fsid;
56 __u64 fileid;
57 __u64 mounted_on_fileid;
58 struct timespec atime;
59 struct timespec mtime;
60 struct timespec ctime;
61 __u64 change_attr; /* NFSv4 change attribute */
62 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */
63 __u64 pre_size; /* pre_op_attr.size */
64 struct timespec pre_mtime; /* pre_op_attr.mtime */
65 struct timespec pre_ctime; /* pre_op_attr.ctime */
66 unsigned long time_start;
67 unsigned long gencount;
68 struct nfs4_string *owner_name;
69 struct nfs4_string *group_name;
70 };
71
72 #define NFS_ATTR_FATTR_TYPE (1U << 0)
73 #define NFS_ATTR_FATTR_MODE (1U << 1)
74 #define NFS_ATTR_FATTR_NLINK (1U << 2)
75 #define NFS_ATTR_FATTR_OWNER (1U << 3)
76 #define NFS_ATTR_FATTR_GROUP (1U << 4)
77 #define NFS_ATTR_FATTR_RDEV (1U << 5)
78 #define NFS_ATTR_FATTR_SIZE (1U << 6)
79 #define NFS_ATTR_FATTR_PRESIZE (1U << 7)
80 #define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8)
81 #define NFS_ATTR_FATTR_SPACE_USED (1U << 9)
82 #define NFS_ATTR_FATTR_FSID (1U << 10)
83 #define NFS_ATTR_FATTR_FILEID (1U << 11)
84 #define NFS_ATTR_FATTR_ATIME (1U << 12)
85 #define NFS_ATTR_FATTR_MTIME (1U << 13)
86 #define NFS_ATTR_FATTR_CTIME (1U << 14)
87 #define NFS_ATTR_FATTR_PREMTIME (1U << 15)
88 #define NFS_ATTR_FATTR_PRECTIME (1U << 16)
89 #define NFS_ATTR_FATTR_CHANGE (1U << 17)
90 #define NFS_ATTR_FATTR_PRECHANGE (1U << 18)
91 #define NFS_ATTR_FATTR_V4_LOCATIONS (1U << 19)
92 #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 20)
93 #define NFS_ATTR_FATTR_MOUNTPOINT (1U << 21)
94 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22)
95 #define NFS_ATTR_FATTR_OWNER_NAME (1U << 23)
96 #define NFS_ATTR_FATTR_GROUP_NAME (1U << 24)
97
98 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
99 | NFS_ATTR_FATTR_MODE \
100 | NFS_ATTR_FATTR_NLINK \
101 | NFS_ATTR_FATTR_OWNER \
102 | NFS_ATTR_FATTR_GROUP \
103 | NFS_ATTR_FATTR_RDEV \
104 | NFS_ATTR_FATTR_SIZE \
105 | NFS_ATTR_FATTR_FSID \
106 | NFS_ATTR_FATTR_FILEID \
107 | NFS_ATTR_FATTR_ATIME \
108 | NFS_ATTR_FATTR_MTIME \
109 | NFS_ATTR_FATTR_CTIME)
110 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
111 | NFS_ATTR_FATTR_BLOCKS_USED)
112 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
113 | NFS_ATTR_FATTR_SPACE_USED)
114 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
115 | NFS_ATTR_FATTR_SPACE_USED \
116 | NFS_ATTR_FATTR_CHANGE)
117
118 /*
119 * Info on the file system
120 */
121 struct nfs_fsinfo {
122 struct nfs_fattr *fattr; /* Post-op attributes */
123 __u32 rtmax; /* max. read transfer size */
124 __u32 rtpref; /* pref. read transfer size */
125 __u32 rtmult; /* reads should be multiple of this */
126 __u32 wtmax; /* max. write transfer size */
127 __u32 wtpref; /* pref. write transfer size */
128 __u32 wtmult; /* writes should be multiple of this */
129 __u32 dtpref; /* pref. readdir transfer size */
130 __u64 maxfilesize;
131 struct timespec time_delta; /* server time granularity */
132 __u32 lease_time; /* in seconds */
133 __u32 layouttype; /* supported pnfs layout driver */
134 __u32 blksize; /* preferred pnfs io block size */
135 };
136
137 struct nfs_fsstat {
138 struct nfs_fattr *fattr; /* Post-op attributes */
139 __u64 tbytes; /* total size in bytes */
140 __u64 fbytes; /* # of free bytes */
141 __u64 abytes; /* # of bytes available to user */
142 __u64 tfiles; /* # of files */
143 __u64 ffiles; /* # of free files */
144 __u64 afiles; /* # of files available to user */
145 };
146
147 struct nfs2_fsstat {
148 __u32 tsize; /* Server transfer size */
149 __u32 bsize; /* Filesystem block size */
150 __u32 blocks; /* No. of "bsize" blocks on filesystem */
151 __u32 bfree; /* No. of free "bsize" blocks */
152 __u32 bavail; /* No. of available "bsize" blocks */
153 };
154
155 struct nfs_pathconf {
156 struct nfs_fattr *fattr; /* Post-op attributes */
157 __u32 max_link; /* max # of hard links */
158 __u32 max_namelen; /* max name length */
159 };
160
161 struct nfs4_change_info {
162 u32 atomic;
163 u64 before;
164 u64 after;
165 };
166
167 struct nfs_seqid;
168
169 /* nfs41 sessions channel attributes */
170 struct nfs4_channel_attrs {
171 u32 max_rqst_sz;
172 u32 max_resp_sz;
173 u32 max_resp_sz_cached;
174 u32 max_ops;
175 u32 max_reqs;
176 };
177
178 /* nfs41 sessions slot seqid */
179 struct nfs4_slot {
180 u32 seq_nr;
181 };
182
183 struct nfs4_sequence_args {
184 struct nfs4_session *sa_session;
185 u32 sa_slotid;
186 u8 sa_cache_this;
187 };
188
189 struct nfs4_sequence_res {
190 struct nfs4_session *sr_session;
191 struct nfs4_slot *sr_slot; /* slot used to send request */
192 int sr_status; /* sequence operation status */
193 unsigned long sr_renewal_time;
194 u32 sr_status_flags;
195 };
196
197 struct nfs4_get_lease_time_args {
198 struct nfs4_sequence_args la_seq_args;
199 };
200
201 struct nfs4_get_lease_time_res {
202 struct nfs_fsinfo *lr_fsinfo;
203 struct nfs4_sequence_res lr_seq_res;
204 };
205
206 #define PNFS_LAYOUT_MAXSIZE 4096
207
208 struct nfs4_layoutdriver_data {
209 struct page **pages;
210 __u32 pglen;
211 __u32 len;
212 };
213
214 struct pnfs_layout_range {
215 u32 iomode;
216 u64 offset;
217 u64 length;
218 };
219
220 struct nfs4_layoutget_args {
221 __u32 type;
222 struct pnfs_layout_range range;
223 __u64 minlength;
224 __u32 maxcount;
225 struct inode *inode;
226 struct nfs_open_context *ctx;
227 struct nfs4_sequence_args seq_args;
228 nfs4_stateid stateid;
229 struct nfs4_layoutdriver_data layout;
230 };
231
232 struct nfs4_layoutget_res {
233 __u32 return_on_close;
234 struct pnfs_layout_range range;
235 __u32 type;
236 nfs4_stateid stateid;
237 struct nfs4_sequence_res seq_res;
238 struct nfs4_layoutdriver_data *layoutp;
239 };
240
241 struct nfs4_layoutget {
242 struct nfs4_layoutget_args args;
243 struct nfs4_layoutget_res res;
244 struct pnfs_layout_segment **lsegpp;
245 gfp_t gfp_flags;
246 };
247
248 struct nfs4_getdevicelist_args {
249 const struct nfs_fh *fh;
250 u32 layoutclass;
251 struct nfs4_sequence_args seq_args;
252 };
253
254 struct nfs4_getdevicelist_res {
255 struct pnfs_devicelist *devlist;
256 struct nfs4_sequence_res seq_res;
257 };
258
259 struct nfs4_getdeviceinfo_args {
260 struct pnfs_device *pdev;
261 struct nfs4_sequence_args seq_args;
262 };
263
264 struct nfs4_getdeviceinfo_res {
265 struct pnfs_device *pdev;
266 struct nfs4_sequence_res seq_res;
267 };
268
269 struct nfs4_layoutcommit_args {
270 nfs4_stateid stateid;
271 __u64 lastbytewritten;
272 struct inode *inode;
273 const u32 *bitmask;
274 struct nfs4_sequence_args seq_args;
275 };
276
277 struct nfs4_layoutcommit_res {
278 struct nfs_fattr *fattr;
279 const struct nfs_server *server;
280 struct nfs4_sequence_res seq_res;
281 int status;
282 };
283
284 struct nfs4_layoutcommit_data {
285 struct rpc_task task;
286 struct nfs_fattr fattr;
287 struct list_head lseg_list;
288 struct rpc_cred *cred;
289 struct nfs4_layoutcommit_args args;
290 struct nfs4_layoutcommit_res res;
291 };
292
293 struct nfs4_layoutreturn_args {
294 struct pnfs_layout_hdr *layout;
295 struct inode *inode;
296 nfs4_stateid stateid;
297 __u32 layout_type;
298 struct nfs4_sequence_args seq_args;
299 };
300
301 struct nfs4_layoutreturn_res {
302 struct nfs4_sequence_res seq_res;
303 u32 lrs_present;
304 nfs4_stateid stateid;
305 };
306
307 struct nfs4_layoutreturn {
308 struct nfs4_layoutreturn_args args;
309 struct nfs4_layoutreturn_res res;
310 struct rpc_cred *cred;
311 struct nfs_client *clp;
312 int rpc_status;
313 };
314
315 struct stateowner_id {
316 __u64 create_time;
317 __u32 uniquifier;
318 };
319
320 /*
321 * Arguments to the open call.
322 */
323 struct nfs_openargs {
324 const struct nfs_fh * fh;
325 struct nfs_seqid * seqid;
326 int open_flags;
327 fmode_t fmode;
328 __u64 clientid;
329 struct stateowner_id id;
330 union {
331 struct {
332 struct iattr * attrs; /* UNCHECKED, GUARDED */
333 nfs4_verifier verifier; /* EXCLUSIVE */
334 };
335 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
336 fmode_t delegation_type; /* CLAIM_PREVIOUS */
337 } u;
338 const struct qstr * name;
339 const struct nfs_server *server; /* Needed for ID mapping */
340 const u32 * bitmask;
341 const u32 * dir_bitmask;
342 __u32 claim;
343 struct nfs4_sequence_args seq_args;
344 };
345
346 struct nfs_openres {
347 nfs4_stateid stateid;
348 struct nfs_fh fh;
349 struct nfs4_change_info cinfo;
350 __u32 rflags;
351 struct nfs_fattr * f_attr;
352 struct nfs_fattr * dir_attr;
353 struct nfs_seqid * seqid;
354 const struct nfs_server *server;
355 fmode_t delegation_type;
356 nfs4_stateid delegation;
357 __u32 do_recall;
358 __u64 maxsize;
359 __u32 attrset[NFS4_BITMAP_SIZE];
360 struct nfs4_string *owner;
361 struct nfs4_string *group_owner;
362 struct nfs4_sequence_res seq_res;
363 };
364
365 /*
366 * Arguments to the open_confirm call.
367 */
368 struct nfs_open_confirmargs {
369 const struct nfs_fh * fh;
370 nfs4_stateid * stateid;
371 struct nfs_seqid * seqid;
372 };
373
374 struct nfs_open_confirmres {
375 nfs4_stateid stateid;
376 struct nfs_seqid * seqid;
377 };
378
379 /*
380 * Arguments to the close call.
381 */
382 struct nfs_closeargs {
383 struct nfs_fh * fh;
384 nfs4_stateid * stateid;
385 struct nfs_seqid * seqid;
386 fmode_t fmode;
387 const u32 * bitmask;
388 struct nfs4_sequence_args seq_args;
389 };
390
391 struct nfs_closeres {
392 nfs4_stateid stateid;
393 struct nfs_fattr * fattr;
394 struct nfs_seqid * seqid;
395 const struct nfs_server *server;
396 struct nfs4_sequence_res seq_res;
397 };
398 /*
399 * * Arguments to the lock,lockt, and locku call.
400 * */
401 struct nfs_lowner {
402 __u64 clientid;
403 __u64 id;
404 dev_t s_dev;
405 };
406
407 struct nfs_lock_args {
408 struct nfs_fh * fh;
409 struct file_lock * fl;
410 struct nfs_seqid * lock_seqid;
411 nfs4_stateid * lock_stateid;
412 struct nfs_seqid * open_seqid;
413 nfs4_stateid * open_stateid;
414 struct nfs_lowner lock_owner;
415 unsigned char block : 1;
416 unsigned char reclaim : 1;
417 unsigned char new_lock_owner : 1;
418 struct nfs4_sequence_args seq_args;
419 };
420
421 struct nfs_lock_res {
422 nfs4_stateid stateid;
423 struct nfs_seqid * lock_seqid;
424 struct nfs_seqid * open_seqid;
425 struct nfs4_sequence_res seq_res;
426 };
427
428 struct nfs_locku_args {
429 struct nfs_fh * fh;
430 struct file_lock * fl;
431 struct nfs_seqid * seqid;
432 nfs4_stateid * stateid;
433 struct nfs4_sequence_args seq_args;
434 };
435
436 struct nfs_locku_res {
437 nfs4_stateid stateid;
438 struct nfs_seqid * seqid;
439 struct nfs4_sequence_res seq_res;
440 };
441
442 struct nfs_lockt_args {
443 struct nfs_fh * fh;
444 struct file_lock * fl;
445 struct nfs_lowner lock_owner;
446 struct nfs4_sequence_args seq_args;
447 };
448
449 struct nfs_lockt_res {
450 struct file_lock * denied; /* LOCK, LOCKT failed */
451 struct nfs4_sequence_res seq_res;
452 };
453
454 struct nfs_release_lockowner_args {
455 struct nfs_lowner lock_owner;
456 };
457
458 struct nfs4_delegreturnargs {
459 const struct nfs_fh *fhandle;
460 const nfs4_stateid *stateid;
461 const u32 * bitmask;
462 struct nfs4_sequence_args seq_args;
463 };
464
465 struct nfs4_delegreturnres {
466 struct nfs_fattr * fattr;
467 const struct nfs_server *server;
468 struct nfs4_sequence_res seq_res;
469 };
470
471 /*
472 * Arguments to the read call.
473 */
474 struct nfs_readargs {
475 struct nfs_fh * fh;
476 struct nfs_open_context *context;
477 struct nfs_lock_context *lock_context;
478 __u64 offset;
479 __u32 count;
480 unsigned int pgbase;
481 struct page ** pages;
482 struct nfs4_sequence_args seq_args;
483 };
484
485 struct nfs_readres {
486 struct nfs_fattr * fattr;
487 __u32 count;
488 int eof;
489 struct nfs4_sequence_res seq_res;
490 };
491
492 /*
493 * Arguments to the write call.
494 */
495 struct nfs_writeargs {
496 struct nfs_fh * fh;
497 struct nfs_open_context *context;
498 struct nfs_lock_context *lock_context;
499 __u64 offset;
500 __u32 count;
501 enum nfs3_stable_how stable;
502 unsigned int pgbase;
503 struct page ** pages;
504 const u32 * bitmask;
505 struct nfs4_sequence_args seq_args;
506 };
507
508 struct nfs_writeverf {
509 enum nfs3_stable_how committed;
510 __be32 verifier[2];
511 };
512
513 struct nfs_writeres {
514 struct nfs_fattr * fattr;
515 struct nfs_writeverf * verf;
516 __u32 count;
517 const struct nfs_server *server;
518 struct nfs4_sequence_res seq_res;
519 };
520
521 /*
522 * Arguments to the commit call.
523 */
524 struct nfs_commitargs {
525 struct nfs_fh *fh;
526 __u64 offset;
527 __u32 count;
528 const u32 *bitmask;
529 struct nfs4_sequence_args seq_args;
530 };
531
532 struct nfs_commitres {
533 struct nfs_fattr *fattr;
534 struct nfs_writeverf *verf;
535 const struct nfs_server *server;
536 struct nfs4_sequence_res seq_res;
537 };
538
539 /*
540 * Common arguments to the unlink call
541 */
542 struct nfs_removeargs {
543 const struct nfs_fh *fh;
544 struct qstr name;
545 const u32 * bitmask;
546 struct nfs4_sequence_args seq_args;
547 };
548
549 struct nfs_removeres {
550 const struct nfs_server *server;
551 struct nfs_fattr *dir_attr;
552 struct nfs4_change_info cinfo;
553 struct nfs4_sequence_res seq_res;
554 };
555
556 /*
557 * Common arguments to the rename call
558 */
559 struct nfs_renameargs {
560 const struct nfs_fh *old_dir;
561 const struct nfs_fh *new_dir;
562 const struct qstr *old_name;
563 const struct qstr *new_name;
564 const u32 *bitmask;
565 struct nfs4_sequence_args seq_args;
566 };
567
568 struct nfs_renameres {
569 const struct nfs_server *server;
570 struct nfs4_change_info old_cinfo;
571 struct nfs_fattr *old_fattr;
572 struct nfs4_change_info new_cinfo;
573 struct nfs_fattr *new_fattr;
574 struct nfs4_sequence_res seq_res;
575 };
576
577 /*
578 * Argument struct for decode_entry function
579 */
580 struct nfs_entry {
581 __u64 ino;
582 __u64 cookie,
583 prev_cookie;
584 const char * name;
585 unsigned int len;
586 int eof;
587 struct nfs_fh * fh;
588 struct nfs_fattr * fattr;
589 unsigned char d_type;
590 struct nfs_server * server;
591 };
592
593 /*
594 * The following types are for NFSv2 only.
595 */
596 struct nfs_sattrargs {
597 struct nfs_fh * fh;
598 struct iattr * sattr;
599 };
600
601 struct nfs_diropargs {
602 struct nfs_fh * fh;
603 const char * name;
604 unsigned int len;
605 };
606
607 struct nfs_createargs {
608 struct nfs_fh * fh;
609 const char * name;
610 unsigned int len;
611 struct iattr * sattr;
612 };
613
614 struct nfs_setattrargs {
615 struct nfs_fh * fh;
616 nfs4_stateid stateid;
617 struct iattr * iap;
618 const struct nfs_server * server; /* Needed for name mapping */
619 const u32 * bitmask;
620 struct nfs4_sequence_args seq_args;
621 };
622
623 struct nfs_setaclargs {
624 struct nfs_fh * fh;
625 size_t acl_len;
626 unsigned int acl_pgbase;
627 struct page ** acl_pages;
628 struct nfs4_sequence_args seq_args;
629 };
630
631 struct nfs_setaclres {
632 struct nfs4_sequence_res seq_res;
633 };
634
635 struct nfs_getaclargs {
636 struct nfs_fh * fh;
637 size_t acl_len;
638 unsigned int acl_pgbase;
639 struct page ** acl_pages;
640 struct nfs4_sequence_args seq_args;
641 };
642
643 /* getxattr ACL interface flags */
644 #define NFS4_ACL_LEN_REQUEST 0x0001 /* zero length getxattr buffer */
645 struct nfs_getaclres {
646 size_t acl_len;
647 size_t acl_data_offset;
648 int acl_flags;
649 struct page * acl_scratch;
650 struct nfs4_sequence_res seq_res;
651 };
652
653 struct nfs_setattrres {
654 struct nfs_fattr * fattr;
655 const struct nfs_server * server;
656 struct nfs4_sequence_res seq_res;
657 };
658
659 struct nfs_linkargs {
660 struct nfs_fh * fromfh;
661 struct nfs_fh * tofh;
662 const char * toname;
663 unsigned int tolen;
664 };
665
666 struct nfs_symlinkargs {
667 struct nfs_fh * fromfh;
668 const char * fromname;
669 unsigned int fromlen;
670 struct page ** pages;
671 unsigned int pathlen;
672 struct iattr * sattr;
673 };
674
675 struct nfs_readdirargs {
676 struct nfs_fh * fh;
677 __u32 cookie;
678 unsigned int count;
679 struct page ** pages;
680 };
681
682 struct nfs3_getaclargs {
683 struct nfs_fh * fh;
684 int mask;
685 struct page ** pages;
686 };
687
688 struct nfs3_setaclargs {
689 struct inode * inode;
690 int mask;
691 struct posix_acl * acl_access;
692 struct posix_acl * acl_default;
693 size_t len;
694 unsigned int npages;
695 struct page ** pages;
696 };
697
698 struct nfs_diropok {
699 struct nfs_fh * fh;
700 struct nfs_fattr * fattr;
701 };
702
703 struct nfs_readlinkargs {
704 struct nfs_fh * fh;
705 unsigned int pgbase;
706 unsigned int pglen;
707 struct page ** pages;
708 };
709
710 struct nfs3_sattrargs {
711 struct nfs_fh * fh;
712 struct iattr * sattr;
713 unsigned int guard;
714 struct timespec guardtime;
715 };
716
717 struct nfs3_diropargs {
718 struct nfs_fh * fh;
719 const char * name;
720 unsigned int len;
721 };
722
723 struct nfs3_accessargs {
724 struct nfs_fh * fh;
725 __u32 access;
726 };
727
728 struct nfs3_createargs {
729 struct nfs_fh * fh;
730 const char * name;
731 unsigned int len;
732 struct iattr * sattr;
733 enum nfs3_createmode createmode;
734 __be32 verifier[2];
735 };
736
737 struct nfs3_mkdirargs {
738 struct nfs_fh * fh;
739 const char * name;
740 unsigned int len;
741 struct iattr * sattr;
742 };
743
744 struct nfs3_symlinkargs {
745 struct nfs_fh * fromfh;
746 const char * fromname;
747 unsigned int fromlen;
748 struct page ** pages;
749 unsigned int pathlen;
750 struct iattr * sattr;
751 };
752
753 struct nfs3_mknodargs {
754 struct nfs_fh * fh;
755 const char * name;
756 unsigned int len;
757 enum nfs3_ftype type;
758 struct iattr * sattr;
759 dev_t rdev;
760 };
761
762 struct nfs3_linkargs {
763 struct nfs_fh * fromfh;
764 struct nfs_fh * tofh;
765 const char * toname;
766 unsigned int tolen;
767 };
768
769 struct nfs3_readdirargs {
770 struct nfs_fh * fh;
771 __u64 cookie;
772 __be32 verf[2];
773 int plus;
774 unsigned int count;
775 struct page ** pages;
776 };
777
778 struct nfs3_diropres {
779 struct nfs_fattr * dir_attr;
780 struct nfs_fh * fh;
781 struct nfs_fattr * fattr;
782 };
783
784 struct nfs3_accessres {
785 struct nfs_fattr * fattr;
786 __u32 access;
787 };
788
789 struct nfs3_readlinkargs {
790 struct nfs_fh * fh;
791 unsigned int pgbase;
792 unsigned int pglen;
793 struct page ** pages;
794 };
795
796 struct nfs3_linkres {
797 struct nfs_fattr * dir_attr;
798 struct nfs_fattr * fattr;
799 };
800
801 struct nfs3_readdirres {
802 struct nfs_fattr * dir_attr;
803 __be32 * verf;
804 int plus;
805 };
806
807 struct nfs3_getaclres {
808 struct nfs_fattr * fattr;
809 int mask;
810 unsigned int acl_access_count;
811 unsigned int acl_default_count;
812 struct posix_acl * acl_access;
813 struct posix_acl * acl_default;
814 };
815
816 #ifdef CONFIG_NFS_V4
817
818 typedef u64 clientid4;
819
820 struct nfs4_accessargs {
821 const struct nfs_fh * fh;
822 const u32 * bitmask;
823 u32 access;
824 struct nfs4_sequence_args seq_args;
825 };
826
827 struct nfs4_accessres {
828 const struct nfs_server * server;
829 struct nfs_fattr * fattr;
830 u32 supported;
831 u32 access;
832 struct nfs4_sequence_res seq_res;
833 };
834
835 struct nfs4_create_arg {
836 u32 ftype;
837 union {
838 struct {
839 struct page ** pages;
840 unsigned int len;
841 } symlink; /* NF4LNK */
842 struct {
843 u32 specdata1;
844 u32 specdata2;
845 } device; /* NF4BLK, NF4CHR */
846 } u;
847 const struct qstr * name;
848 const struct nfs_server * server;
849 const struct iattr * attrs;
850 const struct nfs_fh * dir_fh;
851 const u32 * bitmask;
852 struct nfs4_sequence_args seq_args;
853 };
854
855 struct nfs4_create_res {
856 const struct nfs_server * server;
857 struct nfs_fh * fh;
858 struct nfs_fattr * fattr;
859 struct nfs4_change_info dir_cinfo;
860 struct nfs_fattr * dir_fattr;
861 struct nfs4_sequence_res seq_res;
862 };
863
864 struct nfs4_fsinfo_arg {
865 const struct nfs_fh * fh;
866 const u32 * bitmask;
867 struct nfs4_sequence_args seq_args;
868 };
869
870 struct nfs4_fsinfo_res {
871 struct nfs_fsinfo *fsinfo;
872 struct nfs4_sequence_res seq_res;
873 };
874
875 struct nfs4_getattr_arg {
876 const struct nfs_fh * fh;
877 const u32 * bitmask;
878 struct nfs4_sequence_args seq_args;
879 };
880
881 struct nfs4_getattr_res {
882 const struct nfs_server * server;
883 struct nfs_fattr * fattr;
884 struct nfs4_sequence_res seq_res;
885 };
886
887 struct nfs4_link_arg {
888 const struct nfs_fh * fh;
889 const struct nfs_fh * dir_fh;
890 const struct qstr * name;
891 const u32 * bitmask;
892 struct nfs4_sequence_args seq_args;
893 };
894
895 struct nfs4_link_res {
896 const struct nfs_server * server;
897 struct nfs_fattr * fattr;
898 struct nfs4_change_info cinfo;
899 struct nfs_fattr * dir_attr;
900 struct nfs4_sequence_res seq_res;
901 };
902
903
904 struct nfs4_lookup_arg {
905 const struct nfs_fh * dir_fh;
906 const struct qstr * name;
907 const u32 * bitmask;
908 struct nfs4_sequence_args seq_args;
909 };
910
911 struct nfs4_lookup_res {
912 const struct nfs_server * server;
913 struct nfs_fattr * fattr;
914 struct nfs_fh * fh;
915 struct nfs4_sequence_res seq_res;
916 };
917
918 struct nfs4_lookup_root_arg {
919 const u32 * bitmask;
920 struct nfs4_sequence_args seq_args;
921 };
922
923 struct nfs4_pathconf_arg {
924 const struct nfs_fh * fh;
925 const u32 * bitmask;
926 struct nfs4_sequence_args seq_args;
927 };
928
929 struct nfs4_pathconf_res {
930 struct nfs_pathconf *pathconf;
931 struct nfs4_sequence_res seq_res;
932 };
933
934 struct nfs4_readdir_arg {
935 const struct nfs_fh * fh;
936 u64 cookie;
937 nfs4_verifier verifier;
938 u32 count;
939 struct page ** pages; /* zero-copy data */
940 unsigned int pgbase; /* zero-copy data */
941 const u32 * bitmask;
942 int plus;
943 struct nfs4_sequence_args seq_args;
944 };
945
946 struct nfs4_readdir_res {
947 nfs4_verifier verifier;
948 unsigned int pgbase;
949 struct nfs4_sequence_res seq_res;
950 };
951
952 struct nfs4_readlink {
953 const struct nfs_fh * fh;
954 unsigned int pgbase;
955 unsigned int pglen; /* zero-copy data */
956 struct page ** pages; /* zero-copy data */
957 struct nfs4_sequence_args seq_args;
958 };
959
960 struct nfs4_readlink_res {
961 struct nfs4_sequence_res seq_res;
962 };
963
964 #define NFS4_SETCLIENTID_NAMELEN (127)
965 struct nfs4_setclientid {
966 const nfs4_verifier * sc_verifier;
967 unsigned int sc_name_len;
968 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
969 u32 sc_prog;
970 unsigned int sc_netid_len;
971 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
972 unsigned int sc_uaddr_len;
973 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
974 u32 sc_cb_ident;
975 };
976
977 struct nfs4_setclientid_res {
978 u64 clientid;
979 nfs4_verifier confirm;
980 };
981
982 struct nfs4_statfs_arg {
983 const struct nfs_fh * fh;
984 const u32 * bitmask;
985 struct nfs4_sequence_args seq_args;
986 };
987
988 struct nfs4_statfs_res {
989 struct nfs_fsstat *fsstat;
990 struct nfs4_sequence_res seq_res;
991 };
992
993 struct nfs4_server_caps_arg {
994 struct nfs_fh *fhandle;
995 struct nfs4_sequence_args seq_args;
996 };
997
998 struct nfs4_server_caps_res {
999 u32 attr_bitmask[3];
1000 u32 acl_bitmask;
1001 u32 has_links;
1002 u32 has_symlinks;
1003 u32 fh_expire_type;
1004 struct nfs4_sequence_res seq_res;
1005 };
1006
1007 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1008 struct nfs4_pathname {
1009 unsigned int ncomponents;
1010 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
1011 };
1012
1013 #define NFS4_FS_LOCATION_MAXSERVERS 10
1014 struct nfs4_fs_location {
1015 unsigned int nservers;
1016 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
1017 struct nfs4_pathname rootpath;
1018 };
1019
1020 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1021 struct nfs4_fs_locations {
1022 struct nfs_fattr fattr;
1023 const struct nfs_server *server;
1024 struct nfs4_pathname fs_path;
1025 int nlocations;
1026 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
1027 };
1028
1029 struct nfs4_fs_locations_arg {
1030 const struct nfs_fh *dir_fh;
1031 const struct qstr *name;
1032 struct page *page;
1033 const u32 *bitmask;
1034 struct nfs4_sequence_args seq_args;
1035 };
1036
1037 struct nfs4_fs_locations_res {
1038 struct nfs4_fs_locations *fs_locations;
1039 struct nfs4_sequence_res seq_res;
1040 };
1041
1042 struct nfs4_secinfo_oid {
1043 unsigned int len;
1044 char data[GSS_OID_MAX_LEN];
1045 };
1046
1047 struct nfs4_secinfo_gss {
1048 struct nfs4_secinfo_oid sec_oid4;
1049 unsigned int qop4;
1050 unsigned int service;
1051 };
1052
1053 struct nfs4_secinfo_flavor {
1054 unsigned int flavor;
1055 struct nfs4_secinfo_gss gss;
1056 };
1057
1058 struct nfs4_secinfo_flavors {
1059 unsigned int num_flavors;
1060 struct nfs4_secinfo_flavor flavors[0];
1061 };
1062
1063 struct nfs4_secinfo_arg {
1064 const struct nfs_fh *dir_fh;
1065 const struct qstr *name;
1066 struct nfs4_sequence_args seq_args;
1067 };
1068
1069 struct nfs4_secinfo_res {
1070 struct nfs4_secinfo_flavors *flavors;
1071 struct nfs4_sequence_res seq_res;
1072 };
1073
1074 #endif /* CONFIG_NFS_V4 */
1075
1076 struct nfstime4 {
1077 u64 seconds;
1078 u32 nseconds;
1079 };
1080
1081 #ifdef CONFIG_NFS_V4_1
1082 #define NFS4_EXCHANGE_ID_LEN (48)
1083 struct nfs41_exchange_id_args {
1084 struct nfs_client *client;
1085 nfs4_verifier *verifier;
1086 unsigned int id_len;
1087 char id[NFS4_EXCHANGE_ID_LEN];
1088 u32 flags;
1089 };
1090
1091 struct server_owner {
1092 uint64_t minor_id;
1093 uint32_t major_id_sz;
1094 char major_id[NFS4_OPAQUE_LIMIT];
1095 };
1096
1097 struct server_scope {
1098 uint32_t server_scope_sz;
1099 char server_scope[NFS4_OPAQUE_LIMIT];
1100 };
1101
1102 struct nfs41_impl_id {
1103 char domain[NFS4_OPAQUE_LIMIT + 1];
1104 char name[NFS4_OPAQUE_LIMIT + 1];
1105 struct nfstime4 date;
1106 };
1107
1108 struct nfs41_exchange_id_res {
1109 struct nfs_client *client;
1110 u32 flags;
1111 struct server_scope *server_scope;
1112 struct nfs41_impl_id *impl_id;
1113 };
1114
1115 struct nfs41_create_session_args {
1116 struct nfs_client *client;
1117 uint32_t flags;
1118 uint32_t cb_program;
1119 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1120 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1121 };
1122
1123 struct nfs41_create_session_res {
1124 struct nfs_client *client;
1125 };
1126
1127 struct nfs41_reclaim_complete_args {
1128 /* In the future extend to include curr_fh for use with migration */
1129 unsigned char one_fs:1;
1130 struct nfs4_sequence_args seq_args;
1131 };
1132
1133 struct nfs41_reclaim_complete_res {
1134 struct nfs4_sequence_res seq_res;
1135 };
1136
1137 #define SECINFO_STYLE_CURRENT_FH 0
1138 #define SECINFO_STYLE_PARENT 1
1139 struct nfs41_secinfo_no_name_args {
1140 int style;
1141 struct nfs4_sequence_args seq_args;
1142 };
1143
1144 struct nfs41_test_stateid_args {
1145 nfs4_stateid *stateid;
1146 struct nfs4_sequence_args seq_args;
1147 };
1148
1149 struct nfs41_test_stateid_res {
1150 unsigned int status;
1151 struct nfs4_sequence_res seq_res;
1152 };
1153
1154 struct nfs41_free_stateid_args {
1155 nfs4_stateid *stateid;
1156 struct nfs4_sequence_args seq_args;
1157 };
1158
1159 struct nfs41_free_stateid_res {
1160 unsigned int status;
1161 struct nfs4_sequence_res seq_res;
1162 };
1163
1164 #endif /* CONFIG_NFS_V4_1 */
1165
1166 struct nfs_page;
1167
1168 #define NFS_PAGEVEC_SIZE (8U)
1169
1170 struct nfs_read_data {
1171 struct rpc_task task;
1172 struct inode *inode;
1173 struct rpc_cred *cred;
1174 struct nfs_fattr fattr; /* fattr storage */
1175 struct list_head pages; /* Coalesced read requests */
1176 struct list_head list; /* lists of struct nfs_read_data */
1177 struct nfs_page *req; /* multi ops per nfs_page */
1178 struct page **pagevec;
1179 unsigned int npages; /* Max length of pagevec */
1180 struct nfs_readargs args;
1181 struct nfs_readres res;
1182 unsigned long timestamp; /* For lease renewal */
1183 struct pnfs_layout_segment *lseg;
1184 struct nfs_client *ds_clp; /* pNFS data server */
1185 const struct rpc_call_ops *mds_ops;
1186 int (*read_done_cb) (struct rpc_task *task, struct nfs_read_data *data);
1187 __u64 mds_offset;
1188 int pnfs_error;
1189 struct page *page_array[NFS_PAGEVEC_SIZE];
1190 };
1191
1192 struct nfs_direct_req;
1193
1194 struct nfs_write_data {
1195 struct rpc_task task;
1196 struct inode *inode;
1197 struct rpc_cred *cred;
1198 struct nfs_fattr fattr;
1199 struct nfs_writeverf verf;
1200 struct list_head pages; /* Coalesced requests we wish to flush */
1201 struct list_head list; /* lists of struct nfs_write_data */
1202 struct nfs_page *req; /* multi ops per nfs_page */
1203 struct page **pagevec;
1204 unsigned int npages; /* Max length of pagevec */
1205 struct nfs_writeargs args; /* argument struct */
1206 struct nfs_writeres res; /* result struct */
1207 struct pnfs_layout_segment *lseg;
1208 struct nfs_client *ds_clp; /* pNFS data server */
1209 const struct rpc_call_ops *mds_ops;
1210 int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data);
1211 #ifdef CONFIG_NFS_V4
1212 unsigned long timestamp; /* For lease renewal */
1213 #endif
1214 __u64 mds_offset; /* Filelayout dense stripe */
1215 int pnfs_error;
1216 struct page *page_array[NFS_PAGEVEC_SIZE];
1217 };
1218
1219 struct nfs_commit_data {
1220 struct rpc_task task;
1221 struct inode *inode;
1222 struct rpc_cred *cred;
1223 struct nfs_fattr fattr;
1224 struct nfs_writeverf verf;
1225 struct list_head pages; /* Coalesced requests we wish to flush */
1226 struct list_head list; /* lists of struct nfs_write_data */
1227 struct nfs_direct_req *dreq; /* O_DIRECT request */
1228 struct nfs_commitargs args; /* argument struct */
1229 struct nfs_commitres res; /* result struct */
1230 struct nfs_open_context *context;
1231 struct pnfs_layout_segment *lseg;
1232 struct nfs_client *ds_clp; /* pNFS data server */
1233 int ds_commit_index;
1234 const struct rpc_call_ops *mds_ops;
1235 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
1236 };
1237
1238 struct nfs_unlinkdata {
1239 struct hlist_node list;
1240 struct nfs_removeargs args;
1241 struct nfs_removeres res;
1242 struct inode *dir;
1243 struct rpc_cred *cred;
1244 struct nfs_fattr dir_attr;
1245 };
1246
1247 struct nfs_renamedata {
1248 struct nfs_renameargs args;
1249 struct nfs_renameres res;
1250 struct rpc_cred *cred;
1251 struct inode *old_dir;
1252 struct dentry *old_dentry;
1253 struct nfs_fattr old_fattr;
1254 struct inode *new_dir;
1255 struct dentry *new_dentry;
1256 struct nfs_fattr new_fattr;
1257 };
1258
1259 struct nfs_access_entry;
1260 struct nfs_client;
1261 struct rpc_timeout;
1262
1263 /*
1264 * RPC procedure vector for NFSv2/NFSv3 demuxing
1265 */
1266 struct nfs_rpc_ops {
1267 u32 version; /* Protocol version */
1268 const struct dentry_operations *dentry_ops;
1269 const struct inode_operations *dir_inode_ops;
1270 const struct inode_operations *file_inode_ops;
1271 const struct file_operations *file_ops;
1272
1273 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1274 struct nfs_fsinfo *);
1275 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1276 struct nfs_fattr *);
1277 int (*setattr) (struct dentry *, struct nfs_fattr *,
1278 struct iattr *);
1279 int (*lookup) (struct rpc_clnt *clnt, struct inode *, struct qstr *,
1280 struct nfs_fh *, struct nfs_fattr *);
1281 int (*access) (struct inode *, struct nfs_access_entry *);
1282 int (*readlink)(struct inode *, struct page *, unsigned int,
1283 unsigned int);
1284 int (*create) (struct inode *, struct dentry *,
1285 struct iattr *, int, struct nfs_open_context *);
1286 int (*remove) (struct inode *, struct qstr *);
1287 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1288 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
1289 int (*unlink_done) (struct rpc_task *, struct inode *);
1290 int (*rename) (struct inode *, struct qstr *,
1291 struct inode *, struct qstr *);
1292 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1293 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
1294 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1295 int (*link) (struct inode *, struct inode *, struct qstr *);
1296 int (*symlink) (struct inode *, struct dentry *, struct page *,
1297 unsigned int, struct iattr *);
1298 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1299 int (*rmdir) (struct inode *, struct qstr *);
1300 int (*readdir) (struct dentry *, struct rpc_cred *,
1301 u64, struct page **, unsigned int, int);
1302 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1303 dev_t);
1304 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1305 struct nfs_fsstat *);
1306 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1307 struct nfs_fsinfo *);
1308 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1309 struct nfs_pathconf *);
1310 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1311 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1312 void (*read_setup) (struct nfs_read_data *, struct rpc_message *);
1313 void (*read_rpc_prepare)(struct rpc_task *, struct nfs_read_data *);
1314 int (*read_done) (struct rpc_task *, struct nfs_read_data *);
1315 void (*write_setup) (struct nfs_write_data *, struct rpc_message *);
1316 void (*write_rpc_prepare)(struct rpc_task *, struct nfs_write_data *);
1317 int (*write_done) (struct rpc_task *, struct nfs_write_data *);
1318 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *);
1319 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
1320 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *);
1321 int (*lock)(struct file *, int, struct file_lock *);
1322 int (*lock_check_bounds)(const struct file_lock *);
1323 void (*clear_acl_cache)(struct inode *);
1324 void (*close_context)(struct nfs_open_context *ctx, int);
1325 struct inode * (*open_context) (struct inode *dir,
1326 struct nfs_open_context *ctx,
1327 int open_flags,
1328 struct iattr *iattr);
1329 int (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1330 const char *, rpc_authflavor_t, int);
1331 int (*secinfo)(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *);
1332 };
1333
1334 /*
1335 * NFS_CALL(getattr, inode, (fattr));
1336 * into
1337 * NFS_PROTO(inode)->getattr(fattr);
1338 */
1339 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1340
1341 /*
1342 * Function vectors etc. for the NFS client
1343 */
1344 extern const struct nfs_rpc_ops nfs_v2_clientops;
1345 extern const struct nfs_rpc_ops nfs_v3_clientops;
1346 extern const struct nfs_rpc_ops nfs_v4_clientops;
1347 extern const struct rpc_version nfs_version2;
1348 extern const struct rpc_version nfs_version3;
1349 extern const struct rpc_version nfs_version4;
1350
1351 extern const struct rpc_version nfsacl_version3;
1352 extern const struct rpc_program nfsacl_program;
1353
1354 #endif
Linus' kernel tree