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 struct nfs4_string {
18 unsigned int len;
19 char *data;
20 };
21
22 struct nfs_fsid {
23 uint64_t major;
24 uint64_t minor;
25 };
26
27 /*
28 * Helper for checking equality between 2 fsids.
29 */
nfs_fsid_equal(const struct nfs_fsid * a,const struct nfs_fsid * b)30 static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b)
31 {
32 return a->major == b->major && a->minor == b->minor;
33 }
34
35 struct nfs4_threshold {
36 __u32 bm;
37 __u32 l_type;
38 __u64 rd_sz;
39 __u64 wr_sz;
40 __u64 rd_io_sz;
41 __u64 wr_io_sz;
42 };
43
44 struct nfs_fattr {
45 unsigned int valid; /* which fields are valid */
46 umode_t mode;
47 __u32 nlink;
48 kuid_t uid;
49 kgid_t gid;
50 dev_t rdev;
51 __u64 size;
52 union {
53 struct {
54 __u32 blocksize;
55 __u32 blocks;
56 } nfs2;
57 struct {
58 __u64 used;
59 } nfs3;
60 } du;
61 struct nfs_fsid fsid;
62 __u64 fileid;
63 __u64 mounted_on_fileid;
64 struct timespec atime;
65 struct timespec mtime;
66 struct timespec ctime;
67 __u64 change_attr; /* NFSv4 change attribute */
68 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */
69 __u64 pre_size; /* pre_op_attr.size */
70 struct timespec pre_mtime; /* pre_op_attr.mtime */
71 struct timespec pre_ctime; /* pre_op_attr.ctime */
72 unsigned long time_start;
73 unsigned long gencount;
74 struct nfs4_string *owner_name;
75 struct nfs4_string *group_name;
76 struct nfs4_threshold *mdsthreshold; /* pNFS threshold hints */
77 };
78
79 #define NFS_ATTR_FATTR_TYPE (1U << 0)
80 #define NFS_ATTR_FATTR_MODE (1U << 1)
81 #define NFS_ATTR_FATTR_NLINK (1U << 2)
82 #define NFS_ATTR_FATTR_OWNER (1U << 3)
83 #define NFS_ATTR_FATTR_GROUP (1U << 4)
84 #define NFS_ATTR_FATTR_RDEV (1U << 5)
85 #define NFS_ATTR_FATTR_SIZE (1U << 6)
86 #define NFS_ATTR_FATTR_PRESIZE (1U << 7)
87 #define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8)
88 #define NFS_ATTR_FATTR_SPACE_USED (1U << 9)
89 #define NFS_ATTR_FATTR_FSID (1U << 10)
90 #define NFS_ATTR_FATTR_FILEID (1U << 11)
91 #define NFS_ATTR_FATTR_ATIME (1U << 12)
92 #define NFS_ATTR_FATTR_MTIME (1U << 13)
93 #define NFS_ATTR_FATTR_CTIME (1U << 14)
94 #define NFS_ATTR_FATTR_PREMTIME (1U << 15)
95 #define NFS_ATTR_FATTR_PRECTIME (1U << 16)
96 #define NFS_ATTR_FATTR_CHANGE (1U << 17)
97 #define NFS_ATTR_FATTR_PRECHANGE (1U << 18)
98 #define NFS_ATTR_FATTR_V4_LOCATIONS (1U << 19)
99 #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 20)
100 #define NFS_ATTR_FATTR_MOUNTPOINT (1U << 21)
101 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22)
102 #define NFS_ATTR_FATTR_OWNER_NAME (1U << 23)
103 #define NFS_ATTR_FATTR_GROUP_NAME (1U << 24)
104 #define NFS_ATTR_FATTR_V4_SECURITY_LABEL (1U << 25)
105
106 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
107 | NFS_ATTR_FATTR_MODE \
108 | NFS_ATTR_FATTR_NLINK \
109 | NFS_ATTR_FATTR_OWNER \
110 | NFS_ATTR_FATTR_GROUP \
111 | NFS_ATTR_FATTR_RDEV \
112 | NFS_ATTR_FATTR_SIZE \
113 | NFS_ATTR_FATTR_FSID \
114 | NFS_ATTR_FATTR_FILEID \
115 | NFS_ATTR_FATTR_ATIME \
116 | NFS_ATTR_FATTR_MTIME \
117 | NFS_ATTR_FATTR_CTIME \
118 | NFS_ATTR_FATTR_CHANGE)
119 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
120 | NFS_ATTR_FATTR_BLOCKS_USED)
121 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
122 | NFS_ATTR_FATTR_SPACE_USED)
123 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
124 | NFS_ATTR_FATTR_SPACE_USED \
125 | NFS_ATTR_FATTR_V4_SECURITY_LABEL)
126
127 /*
128 * Info on the file system
129 */
130 struct nfs_fsinfo {
131 struct nfs_fattr *fattr; /* Post-op attributes */
132 __u32 rtmax; /* max. read transfer size */
133 __u32 rtpref; /* pref. read transfer size */
134 __u32 rtmult; /* reads should be multiple of this */
135 __u32 wtmax; /* max. write transfer size */
136 __u32 wtpref; /* pref. write transfer size */
137 __u32 wtmult; /* writes should be multiple of this */
138 __u32 dtpref; /* pref. readdir transfer size */
139 __u64 maxfilesize;
140 struct timespec time_delta; /* server time granularity */
141 __u32 lease_time; /* in seconds */
142 __u32 layouttype; /* supported pnfs layout driver */
143 __u32 blksize; /* preferred pnfs io block size */
144 };
145
146 struct nfs_fsstat {
147 struct nfs_fattr *fattr; /* Post-op attributes */
148 __u64 tbytes; /* total size in bytes */
149 __u64 fbytes; /* # of free bytes */
150 __u64 abytes; /* # of bytes available to user */
151 __u64 tfiles; /* # of files */
152 __u64 ffiles; /* # of free files */
153 __u64 afiles; /* # of files available to user */
154 };
155
156 struct nfs2_fsstat {
157 __u32 tsize; /* Server transfer size */
158 __u32 bsize; /* Filesystem block size */
159 __u32 blocks; /* No. of "bsize" blocks on filesystem */
160 __u32 bfree; /* No. of free "bsize" blocks */
161 __u32 bavail; /* No. of available "bsize" blocks */
162 };
163
164 struct nfs_pathconf {
165 struct nfs_fattr *fattr; /* Post-op attributes */
166 __u32 max_link; /* max # of hard links */
167 __u32 max_namelen; /* max name length */
168 };
169
170 struct nfs4_change_info {
171 u32 atomic;
172 u64 before;
173 u64 after;
174 };
175
176 struct nfs_seqid;
177
178 /* nfs41 sessions channel attributes */
179 struct nfs4_channel_attrs {
180 u32 max_rqst_sz;
181 u32 max_resp_sz;
182 u32 max_resp_sz_cached;
183 u32 max_ops;
184 u32 max_reqs;
185 };
186
187 struct nfs4_slot;
188 struct nfs4_sequence_args {
189 struct nfs4_slot *sa_slot;
190 u8 sa_cache_this : 1,
191 sa_privileged : 1;
192 };
193
194 struct nfs4_sequence_res {
195 struct nfs4_slot *sr_slot; /* slot used to send request */
196 unsigned long sr_timestamp;
197 int sr_status; /* sequence operation status */
198 u32 sr_status_flags;
199 u32 sr_highest_slotid;
200 u32 sr_target_highest_slotid;
201 };
202
203 struct nfs4_get_lease_time_args {
204 struct nfs4_sequence_args la_seq_args;
205 };
206
207 struct nfs4_get_lease_time_res {
208 struct nfs4_sequence_res lr_seq_res;
209 struct nfs_fsinfo *lr_fsinfo;
210 };
211
212 #define PNFS_LAYOUT_MAXSIZE 4096
213
214 struct nfs4_layoutdriver_data {
215 struct page **pages;
216 __u32 pglen;
217 __u32 len;
218 };
219
220 struct pnfs_layout_range {
221 u32 iomode;
222 u64 offset;
223 u64 length;
224 };
225
226 struct nfs4_layoutget_args {
227 struct nfs4_sequence_args seq_args;
228 __u32 type;
229 struct pnfs_layout_range range;
230 __u64 minlength;
231 __u32 maxcount;
232 struct inode *inode;
233 struct nfs_open_context *ctx;
234 nfs4_stateid stateid;
235 unsigned long timestamp;
236 struct nfs4_layoutdriver_data layout;
237 };
238
239 struct nfs4_layoutget_res {
240 struct nfs4_sequence_res seq_res;
241 __u32 return_on_close;
242 struct pnfs_layout_range range;
243 __u32 type;
244 nfs4_stateid stateid;
245 struct nfs4_layoutdriver_data *layoutp;
246 };
247
248 struct nfs4_layoutget {
249 struct nfs4_layoutget_args args;
250 struct nfs4_layoutget_res res;
251 struct rpc_cred *cred;
252 gfp_t gfp_flags;
253 };
254
255 struct nfs4_getdeviceinfo_args {
256 struct nfs4_sequence_args seq_args;
257 struct pnfs_device *pdev;
258 };
259
260 struct nfs4_getdeviceinfo_res {
261 struct nfs4_sequence_res seq_res;
262 struct pnfs_device *pdev;
263 };
264
265 struct nfs4_layoutcommit_args {
266 struct nfs4_sequence_args seq_args;
267 nfs4_stateid stateid;
268 __u64 lastbytewritten;
269 struct inode *inode;
270 const u32 *bitmask;
271 size_t layoutupdate_len;
272 struct page *layoutupdate_page;
273 struct page **layoutupdate_pages;
274 };
275
276 struct nfs4_layoutcommit_res {
277 struct nfs4_sequence_res seq_res;
278 struct nfs_fattr *fattr;
279 const struct nfs_server *server;
280 int status;
281 };
282
283 struct nfs4_layoutcommit_data {
284 struct rpc_task task;
285 struct nfs_fattr fattr;
286 struct list_head lseg_list;
287 struct rpc_cred *cred;
288 struct nfs4_layoutcommit_args args;
289 struct nfs4_layoutcommit_res res;
290 };
291
292 struct nfs4_layoutreturn_args {
293 struct nfs4_sequence_args seq_args;
294 struct pnfs_layout_hdr *layout;
295 struct inode *inode;
296 nfs4_stateid stateid;
297 __u32 layout_type;
298 };
299
300 struct nfs4_layoutreturn_res {
301 struct nfs4_sequence_res seq_res;
302 u32 lrs_present;
303 nfs4_stateid stateid;
304 };
305
306 struct nfs4_layoutreturn {
307 struct nfs4_layoutreturn_args args;
308 struct nfs4_layoutreturn_res res;
309 struct rpc_cred *cred;
310 struct nfs_client *clp;
311 int rpc_status;
312 };
313
314 struct stateowner_id {
315 __u64 create_time;
316 __u32 uniquifier;
317 };
318
319 /*
320 * Arguments to the open call.
321 */
322 struct nfs_openargs {
323 struct nfs4_sequence_args seq_args;
324 const struct nfs_fh * fh;
325 struct nfs_seqid * seqid;
326 int open_flags;
327 fmode_t fmode;
328 u32 access;
329 __u64 clientid;
330 struct stateowner_id id;
331 union {
332 struct {
333 struct iattr * attrs; /* UNCHECKED, GUARDED */
334 nfs4_verifier verifier; /* EXCLUSIVE */
335 };
336 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
337 fmode_t delegation_type; /* CLAIM_PREVIOUS */
338 } u;
339 const struct qstr * name;
340 const struct nfs_server *server; /* Needed for ID mapping */
341 const u32 * bitmask;
342 const u32 * open_bitmap;
343 __u32 claim;
344 enum createmode4 createmode;
345 const struct nfs4_label *label;
346 };
347
348 struct nfs_openres {
349 struct nfs4_sequence_res seq_res;
350 nfs4_stateid stateid;
351 struct nfs_fh fh;
352 struct nfs4_change_info cinfo;
353 __u32 rflags;
354 struct nfs_fattr * f_attr;
355 struct nfs4_label *f_label;
356 struct nfs_seqid * seqid;
357 const struct nfs_server *server;
358 fmode_t delegation_type;
359 nfs4_stateid delegation;
360 __u32 do_recall;
361 __u64 maxsize;
362 __u32 attrset[NFS4_BITMAP_SIZE];
363 struct nfs4_string *owner;
364 struct nfs4_string *group_owner;
365 __u32 access_request;
366 __u32 access_supported;
367 __u32 access_result;
368 };
369
370 /*
371 * Arguments to the open_confirm call.
372 */
373 struct nfs_open_confirmargs {
374 struct nfs4_sequence_args seq_args;
375 const struct nfs_fh * fh;
376 nfs4_stateid * stateid;
377 struct nfs_seqid * seqid;
378 };
379
380 struct nfs_open_confirmres {
381 struct nfs4_sequence_res seq_res;
382 nfs4_stateid stateid;
383 struct nfs_seqid * seqid;
384 };
385
386 /*
387 * Arguments to the close call.
388 */
389 struct nfs_closeargs {
390 struct nfs4_sequence_args seq_args;
391 struct nfs_fh * fh;
392 nfs4_stateid * stateid;
393 struct nfs_seqid * seqid;
394 fmode_t fmode;
395 const u32 * bitmask;
396 };
397
398 struct nfs_closeres {
399 struct nfs4_sequence_res seq_res;
400 nfs4_stateid stateid;
401 struct nfs_fattr * fattr;
402 struct nfs_seqid * seqid;
403 const struct nfs_server *server;
404 };
405 /*
406 * * Arguments to the lock,lockt, and locku call.
407 * */
408 struct nfs_lowner {
409 __u64 clientid;
410 __u64 id;
411 dev_t s_dev;
412 };
413
414 struct nfs_lock_args {
415 struct nfs4_sequence_args seq_args;
416 struct nfs_fh * fh;
417 struct file_lock * fl;
418 struct nfs_seqid * lock_seqid;
419 nfs4_stateid * lock_stateid;
420 struct nfs_seqid * open_seqid;
421 nfs4_stateid * open_stateid;
422 struct nfs_lowner lock_owner;
423 unsigned char block : 1;
424 unsigned char reclaim : 1;
425 unsigned char new_lock_owner : 1;
426 };
427
428 struct nfs_lock_res {
429 struct nfs4_sequence_res seq_res;
430 nfs4_stateid stateid;
431 struct nfs_seqid * lock_seqid;
432 struct nfs_seqid * open_seqid;
433 };
434
435 struct nfs_locku_args {
436 struct nfs4_sequence_args seq_args;
437 struct nfs_fh * fh;
438 struct file_lock * fl;
439 struct nfs_seqid * seqid;
440 nfs4_stateid * stateid;
441 };
442
443 struct nfs_locku_res {
444 struct nfs4_sequence_res seq_res;
445 nfs4_stateid stateid;
446 struct nfs_seqid * seqid;
447 };
448
449 struct nfs_lockt_args {
450 struct nfs4_sequence_args seq_args;
451 struct nfs_fh * fh;
452 struct file_lock * fl;
453 struct nfs_lowner lock_owner;
454 };
455
456 struct nfs_lockt_res {
457 struct nfs4_sequence_res seq_res;
458 struct file_lock * denied; /* LOCK, LOCKT failed */
459 };
460
461 struct nfs_release_lockowner_args {
462 struct nfs4_sequence_args seq_args;
463 struct nfs_lowner lock_owner;
464 };
465
466 struct nfs_release_lockowner_res {
467 struct nfs4_sequence_res seq_res;
468 };
469
470 struct nfs4_delegreturnargs {
471 struct nfs4_sequence_args seq_args;
472 const struct nfs_fh *fhandle;
473 const nfs4_stateid *stateid;
474 const u32 * bitmask;
475 };
476
477 struct nfs4_delegreturnres {
478 struct nfs4_sequence_res seq_res;
479 struct nfs_fattr * fattr;
480 const struct nfs_server *server;
481 };
482
483 /*
484 * Arguments to the write call.
485 */
486 struct nfs_write_verifier {
487 char data[8];
488 };
489
490 struct nfs_writeverf {
491 struct nfs_write_verifier verifier;
492 enum nfs3_stable_how committed;
493 };
494
495 /*
496 * Arguments shared by the read and write call.
497 */
498 struct nfs_pgio_args {
499 struct nfs4_sequence_args seq_args;
500 struct nfs_fh * fh;
501 struct nfs_open_context *context;
502 struct nfs_lock_context *lock_context;
503 nfs4_stateid stateid;
504 __u64 offset;
505 __u32 count;
506 unsigned int pgbase;
507 struct page ** pages;
508 const u32 * bitmask; /* used by write */
509 enum nfs3_stable_how stable; /* used by write */
510 };
511
512 struct nfs_pgio_res {
513 struct nfs4_sequence_res seq_res;
514 struct nfs_fattr * fattr;
515 __u32 count;
516 int eof; /* used by read */
517 struct nfs_writeverf * verf; /* used by write */
518 const struct nfs_server *server; /* used by write */
519
520 };
521
522 /*
523 * Arguments to the commit call.
524 */
525 struct nfs_commitargs {
526 struct nfs4_sequence_args seq_args;
527 struct nfs_fh *fh;
528 __u64 offset;
529 __u32 count;
530 const u32 *bitmask;
531 };
532
533 struct nfs_commitres {
534 struct nfs4_sequence_res seq_res;
535 struct nfs_fattr *fattr;
536 struct nfs_writeverf *verf;
537 const struct nfs_server *server;
538 };
539
540 /*
541 * Common arguments to the unlink call
542 */
543 struct nfs_removeargs {
544 struct nfs4_sequence_args seq_args;
545 const struct nfs_fh *fh;
546 struct qstr name;
547 };
548
549 struct nfs_removeres {
550 struct nfs4_sequence_res seq_res;
551 const struct nfs_server *server;
552 struct nfs_fattr *dir_attr;
553 struct nfs4_change_info cinfo;
554 };
555
556 /*
557 * Common arguments to the rename call
558 */
559 struct nfs_renameargs {
560 struct nfs4_sequence_args seq_args;
561 const struct nfs_fh *old_dir;
562 const struct nfs_fh *new_dir;
563 const struct qstr *old_name;
564 const struct qstr *new_name;
565 };
566
567 struct nfs_renameres {
568 struct nfs4_sequence_res seq_res;
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 };
575
576 /* parsed sec= options */
577 #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */
578 struct nfs_auth_info {
579 unsigned int flavor_len;
580 rpc_authflavor_t flavors[NFS_AUTH_INFO_MAX_FLAVORS];
581 };
582
583 /*
584 * Argument struct for decode_entry function
585 */
586 struct nfs_entry {
587 __u64 ino;
588 __u64 cookie,
589 prev_cookie;
590 const char * name;
591 unsigned int len;
592 int eof;
593 struct nfs_fh * fh;
594 struct nfs_fattr * fattr;
595 struct nfs4_label *label;
596 unsigned char d_type;
597 struct nfs_server * server;
598 };
599
600 /*
601 * The following types are for NFSv2 only.
602 */
603 struct nfs_sattrargs {
604 struct nfs_fh * fh;
605 struct iattr * sattr;
606 };
607
608 struct nfs_diropargs {
609 struct nfs_fh * fh;
610 const char * name;
611 unsigned int len;
612 };
613
614 struct nfs_createargs {
615 struct nfs_fh * fh;
616 const char * name;
617 unsigned int len;
618 struct iattr * sattr;
619 };
620
621 struct nfs_setattrargs {
622 struct nfs4_sequence_args seq_args;
623 struct nfs_fh * fh;
624 nfs4_stateid stateid;
625 struct iattr * iap;
626 const struct nfs_server * server; /* Needed for name mapping */
627 const u32 * bitmask;
628 const struct nfs4_label *label;
629 };
630
631 struct nfs_setaclargs {
632 struct nfs4_sequence_args seq_args;
633 struct nfs_fh * fh;
634 size_t acl_len;
635 unsigned int acl_pgbase;
636 struct page ** acl_pages;
637 };
638
639 struct nfs_setaclres {
640 struct nfs4_sequence_res seq_res;
641 };
642
643 struct nfs_getaclargs {
644 struct nfs4_sequence_args seq_args;
645 struct nfs_fh * fh;
646 size_t acl_len;
647 unsigned int acl_pgbase;
648 struct page ** acl_pages;
649 };
650
651 /* getxattr ACL interface flags */
652 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
653 struct nfs_getaclres {
654 struct nfs4_sequence_res seq_res;
655 size_t acl_len;
656 size_t acl_data_offset;
657 int acl_flags;
658 struct page * acl_scratch;
659 };
660
661 struct nfs_setattrres {
662 struct nfs4_sequence_res seq_res;
663 struct nfs_fattr * fattr;
664 struct nfs4_label *label;
665 const struct nfs_server * server;
666 };
667
668 struct nfs_linkargs {
669 struct nfs_fh * fromfh;
670 struct nfs_fh * tofh;
671 const char * toname;
672 unsigned int tolen;
673 };
674
675 struct nfs_symlinkargs {
676 struct nfs_fh * fromfh;
677 const char * fromname;
678 unsigned int fromlen;
679 struct page ** pages;
680 unsigned int pathlen;
681 struct iattr * sattr;
682 };
683
684 struct nfs_readdirargs {
685 struct nfs_fh * fh;
686 __u32 cookie;
687 unsigned int count;
688 struct page ** pages;
689 };
690
691 struct nfs3_getaclargs {
692 struct nfs_fh * fh;
693 int mask;
694 struct page ** pages;
695 };
696
697 struct nfs3_setaclargs {
698 struct inode * inode;
699 int mask;
700 struct posix_acl * acl_access;
701 struct posix_acl * acl_default;
702 size_t len;
703 unsigned int npages;
704 struct page ** pages;
705 };
706
707 struct nfs_diropok {
708 struct nfs_fh * fh;
709 struct nfs_fattr * fattr;
710 };
711
712 struct nfs_readlinkargs {
713 struct nfs_fh * fh;
714 unsigned int pgbase;
715 unsigned int pglen;
716 struct page ** pages;
717 };
718
719 struct nfs3_sattrargs {
720 struct nfs_fh * fh;
721 struct iattr * sattr;
722 unsigned int guard;
723 struct timespec guardtime;
724 };
725
726 struct nfs3_diropargs {
727 struct nfs_fh * fh;
728 const char * name;
729 unsigned int len;
730 };
731
732 struct nfs3_accessargs {
733 struct nfs_fh * fh;
734 __u32 access;
735 };
736
737 struct nfs3_createargs {
738 struct nfs_fh * fh;
739 const char * name;
740 unsigned int len;
741 struct iattr * sattr;
742 enum nfs3_createmode createmode;
743 __be32 verifier[2];
744 };
745
746 struct nfs3_mkdirargs {
747 struct nfs_fh * fh;
748 const char * name;
749 unsigned int len;
750 struct iattr * sattr;
751 };
752
753 struct nfs3_symlinkargs {
754 struct nfs_fh * fromfh;
755 const char * fromname;
756 unsigned int fromlen;
757 struct page ** pages;
758 unsigned int pathlen;
759 struct iattr * sattr;
760 };
761
762 struct nfs3_mknodargs {
763 struct nfs_fh * fh;
764 const char * name;
765 unsigned int len;
766 enum nfs3_ftype type;
767 struct iattr * sattr;
768 dev_t rdev;
769 };
770
771 struct nfs3_linkargs {
772 struct nfs_fh * fromfh;
773 struct nfs_fh * tofh;
774 const char * toname;
775 unsigned int tolen;
776 };
777
778 struct nfs3_readdirargs {
779 struct nfs_fh * fh;
780 __u64 cookie;
781 __be32 verf[2];
782 int plus;
783 unsigned int count;
784 struct page ** pages;
785 };
786
787 struct nfs3_diropres {
788 struct nfs_fattr * dir_attr;
789 struct nfs_fh * fh;
790 struct nfs_fattr * fattr;
791 };
792
793 struct nfs3_accessres {
794 struct nfs_fattr * fattr;
795 __u32 access;
796 };
797
798 struct nfs3_readlinkargs {
799 struct nfs_fh * fh;
800 unsigned int pgbase;
801 unsigned int pglen;
802 struct page ** pages;
803 };
804
805 struct nfs3_linkres {
806 struct nfs_fattr * dir_attr;
807 struct nfs_fattr * fattr;
808 };
809
810 struct nfs3_readdirres {
811 struct nfs_fattr * dir_attr;
812 __be32 * verf;
813 int plus;
814 };
815
816 struct nfs3_getaclres {
817 struct nfs_fattr * fattr;
818 int mask;
819 unsigned int acl_access_count;
820 unsigned int acl_default_count;
821 struct posix_acl * acl_access;
822 struct posix_acl * acl_default;
823 };
824
825 #if IS_ENABLED(CONFIG_NFS_V4)
826
827 typedef u64 clientid4;
828
829 struct nfs4_accessargs {
830 struct nfs4_sequence_args seq_args;
831 const struct nfs_fh * fh;
832 const u32 * bitmask;
833 u32 access;
834 };
835
836 struct nfs4_accessres {
837 struct nfs4_sequence_res seq_res;
838 const struct nfs_server * server;
839 struct nfs_fattr * fattr;
840 u32 supported;
841 u32 access;
842 };
843
844 struct nfs4_create_arg {
845 struct nfs4_sequence_args seq_args;
846 u32 ftype;
847 union {
848 struct {
849 struct page ** pages;
850 unsigned int len;
851 } symlink; /* NF4LNK */
852 struct {
853 u32 specdata1;
854 u32 specdata2;
855 } device; /* NF4BLK, NF4CHR */
856 } u;
857 const struct qstr * name;
858 const struct nfs_server * server;
859 const struct iattr * attrs;
860 const struct nfs_fh * dir_fh;
861 const u32 * bitmask;
862 const struct nfs4_label *label;
863 };
864
865 struct nfs4_create_res {
866 struct nfs4_sequence_res seq_res;
867 const struct nfs_server * server;
868 struct nfs_fh * fh;
869 struct nfs_fattr * fattr;
870 struct nfs4_label *label;
871 struct nfs4_change_info dir_cinfo;
872 };
873
874 struct nfs4_fsinfo_arg {
875 struct nfs4_sequence_args seq_args;
876 const struct nfs_fh * fh;
877 const u32 * bitmask;
878 };
879
880 struct nfs4_fsinfo_res {
881 struct nfs4_sequence_res seq_res;
882 struct nfs_fsinfo *fsinfo;
883 };
884
885 struct nfs4_getattr_arg {
886 struct nfs4_sequence_args seq_args;
887 const struct nfs_fh * fh;
888 const u32 * bitmask;
889 };
890
891 struct nfs4_getattr_res {
892 struct nfs4_sequence_res seq_res;
893 const struct nfs_server * server;
894 struct nfs_fattr * fattr;
895 struct nfs4_label *label;
896 };
897
898 struct nfs4_link_arg {
899 struct nfs4_sequence_args seq_args;
900 const struct nfs_fh * fh;
901 const struct nfs_fh * dir_fh;
902 const struct qstr * name;
903 const u32 * bitmask;
904 };
905
906 struct nfs4_link_res {
907 struct nfs4_sequence_res seq_res;
908 const struct nfs_server * server;
909 struct nfs_fattr * fattr;
910 struct nfs4_label *label;
911 struct nfs4_change_info cinfo;
912 struct nfs_fattr * dir_attr;
913 };
914
915
916 struct nfs4_lookup_arg {
917 struct nfs4_sequence_args seq_args;
918 const struct nfs_fh * dir_fh;
919 const struct qstr * name;
920 const u32 * bitmask;
921 };
922
923 struct nfs4_lookup_res {
924 struct nfs4_sequence_res seq_res;
925 const struct nfs_server * server;
926 struct nfs_fattr * fattr;
927 struct nfs_fh * fh;
928 struct nfs4_label *label;
929 };
930
931 struct nfs4_lookup_root_arg {
932 struct nfs4_sequence_args seq_args;
933 const u32 * bitmask;
934 };
935
936 struct nfs4_pathconf_arg {
937 struct nfs4_sequence_args seq_args;
938 const struct nfs_fh * fh;
939 const u32 * bitmask;
940 };
941
942 struct nfs4_pathconf_res {
943 struct nfs4_sequence_res seq_res;
944 struct nfs_pathconf *pathconf;
945 };
946
947 struct nfs4_readdir_arg {
948 struct nfs4_sequence_args seq_args;
949 const struct nfs_fh * fh;
950 u64 cookie;
951 nfs4_verifier verifier;
952 u32 count;
953 struct page ** pages; /* zero-copy data */
954 unsigned int pgbase; /* zero-copy data */
955 const u32 * bitmask;
956 int plus;
957 };
958
959 struct nfs4_readdir_res {
960 struct nfs4_sequence_res seq_res;
961 nfs4_verifier verifier;
962 unsigned int pgbase;
963 };
964
965 struct nfs4_readlink {
966 struct nfs4_sequence_args seq_args;
967 const struct nfs_fh * fh;
968 unsigned int pgbase;
969 unsigned int pglen; /* zero-copy data */
970 struct page ** pages; /* zero-copy data */
971 };
972
973 struct nfs4_readlink_res {
974 struct nfs4_sequence_res seq_res;
975 };
976
977 #define NFS4_SETCLIENTID_NAMELEN (127)
978 struct nfs4_setclientid {
979 const nfs4_verifier * sc_verifier;
980 unsigned int sc_name_len;
981 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
982 u32 sc_prog;
983 unsigned int sc_netid_len;
984 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
985 unsigned int sc_uaddr_len;
986 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
987 u32 sc_cb_ident;
988 struct rpc_cred *sc_cred;
989 };
990
991 struct nfs4_setclientid_res {
992 u64 clientid;
993 nfs4_verifier confirm;
994 };
995
996 struct nfs4_statfs_arg {
997 struct nfs4_sequence_args seq_args;
998 const struct nfs_fh * fh;
999 const u32 * bitmask;
1000 };
1001
1002 struct nfs4_statfs_res {
1003 struct nfs4_sequence_res seq_res;
1004 struct nfs_fsstat *fsstat;
1005 };
1006
1007 struct nfs4_server_caps_arg {
1008 struct nfs4_sequence_args seq_args;
1009 struct nfs_fh *fhandle;
1010 };
1011
1012 struct nfs4_server_caps_res {
1013 struct nfs4_sequence_res seq_res;
1014 u32 attr_bitmask[3];
1015 u32 acl_bitmask;
1016 u32 has_links;
1017 u32 has_symlinks;
1018 u32 fh_expire_type;
1019 };
1020
1021 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1022 struct nfs4_pathname {
1023 unsigned int ncomponents;
1024 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
1025 };
1026
1027 #define NFS4_FS_LOCATION_MAXSERVERS 10
1028 struct nfs4_fs_location {
1029 unsigned int nservers;
1030 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
1031 struct nfs4_pathname rootpath;
1032 };
1033
1034 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1035 struct nfs4_fs_locations {
1036 struct nfs_fattr fattr;
1037 const struct nfs_server *server;
1038 struct nfs4_pathname fs_path;
1039 int nlocations;
1040 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
1041 };
1042
1043 struct nfs4_fs_locations_arg {
1044 struct nfs4_sequence_args seq_args;
1045 const struct nfs_fh *dir_fh;
1046 const struct nfs_fh *fh;
1047 const struct qstr *name;
1048 struct page *page;
1049 const u32 *bitmask;
1050 clientid4 clientid;
1051 unsigned char migration:1, renew:1;
1052 };
1053
1054 struct nfs4_fs_locations_res {
1055 struct nfs4_sequence_res seq_res;
1056 struct nfs4_fs_locations *fs_locations;
1057 unsigned char migration:1, renew:1;
1058 };
1059
1060 struct nfs4_secinfo4 {
1061 u32 flavor;
1062 struct rpcsec_gss_info flavor_info;
1063 };
1064
1065 struct nfs4_secinfo_flavors {
1066 unsigned int num_flavors;
1067 struct nfs4_secinfo4 flavors[0];
1068 };
1069
1070 struct nfs4_secinfo_arg {
1071 struct nfs4_sequence_args seq_args;
1072 const struct nfs_fh *dir_fh;
1073 const struct qstr *name;
1074 };
1075
1076 struct nfs4_secinfo_res {
1077 struct nfs4_sequence_res seq_res;
1078 struct nfs4_secinfo_flavors *flavors;
1079 };
1080
1081 struct nfs4_fsid_present_arg {
1082 struct nfs4_sequence_args seq_args;
1083 const struct nfs_fh *fh;
1084 clientid4 clientid;
1085 unsigned char renew:1;
1086 };
1087
1088 struct nfs4_fsid_present_res {
1089 struct nfs4_sequence_res seq_res;
1090 struct nfs_fh *fh;
1091 unsigned char renew:1;
1092 };
1093
1094 #endif /* CONFIG_NFS_V4 */
1095
1096 struct nfstime4 {
1097 u64 seconds;
1098 u32 nseconds;
1099 };
1100
1101 #ifdef CONFIG_NFS_V4_1
1102
1103 struct pnfs_commit_bucket {
1104 struct list_head written;
1105 struct list_head committing;
1106 struct pnfs_layout_segment *wlseg;
1107 struct pnfs_layout_segment *clseg;
1108 struct nfs_writeverf direct_verf;
1109 };
1110
1111 struct pnfs_ds_commit_info {
1112 int nwritten;
1113 int ncommitting;
1114 int nbuckets;
1115 struct pnfs_commit_bucket *buckets;
1116 };
1117
1118 #define NFS4_OP_MAP_NUM_LONGS \
1119 DIV_ROUND_UP(LAST_NFS4_OP, 8 * sizeof(unsigned long))
1120 #define NFS4_OP_MAP_NUM_WORDS \
1121 (NFS4_OP_MAP_NUM_LONGS * sizeof(unsigned long) / sizeof(u32))
1122 struct nfs4_op_map {
1123 union {
1124 unsigned long longs[NFS4_OP_MAP_NUM_LONGS];
1125 u32 words[NFS4_OP_MAP_NUM_WORDS];
1126 } u;
1127 };
1128
1129 struct nfs41_state_protection {
1130 u32 how;
1131 struct nfs4_op_map enforce;
1132 struct nfs4_op_map allow;
1133 };
1134
1135 #define NFS4_EXCHANGE_ID_LEN (127)
1136 struct nfs41_exchange_id_args {
1137 struct nfs_client *client;
1138 nfs4_verifier *verifier;
1139 unsigned int id_len;
1140 char id[NFS4_EXCHANGE_ID_LEN];
1141 u32 flags;
1142 struct nfs41_state_protection state_protect;
1143 };
1144
1145 struct nfs41_server_owner {
1146 uint64_t minor_id;
1147 uint32_t major_id_sz;
1148 char major_id[NFS4_OPAQUE_LIMIT];
1149 };
1150
1151 struct nfs41_server_scope {
1152 uint32_t server_scope_sz;
1153 char server_scope[NFS4_OPAQUE_LIMIT];
1154 };
1155
1156 struct nfs41_impl_id {
1157 char domain[NFS4_OPAQUE_LIMIT + 1];
1158 char name[NFS4_OPAQUE_LIMIT + 1];
1159 struct nfstime4 date;
1160 };
1161
1162 struct nfs41_bind_conn_to_session_res {
1163 struct nfs4_session *session;
1164 u32 dir;
1165 bool use_conn_in_rdma_mode;
1166 };
1167
1168 struct nfs41_exchange_id_res {
1169 u64 clientid;
1170 u32 seqid;
1171 u32 flags;
1172 struct nfs41_server_owner *server_owner;
1173 struct nfs41_server_scope *server_scope;
1174 struct nfs41_impl_id *impl_id;
1175 struct nfs41_state_protection state_protect;
1176 };
1177
1178 struct nfs41_create_session_args {
1179 struct nfs_client *client;
1180 uint32_t flags;
1181 uint32_t cb_program;
1182 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1183 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1184 };
1185
1186 struct nfs41_create_session_res {
1187 struct nfs_client *client;
1188 };
1189
1190 struct nfs41_reclaim_complete_args {
1191 struct nfs4_sequence_args seq_args;
1192 /* In the future extend to include curr_fh for use with migration */
1193 unsigned char one_fs:1;
1194 };
1195
1196 struct nfs41_reclaim_complete_res {
1197 struct nfs4_sequence_res seq_res;
1198 };
1199
1200 #define SECINFO_STYLE_CURRENT_FH 0
1201 #define SECINFO_STYLE_PARENT 1
1202 struct nfs41_secinfo_no_name_args {
1203 struct nfs4_sequence_args seq_args;
1204 int style;
1205 };
1206
1207 struct nfs41_test_stateid_args {
1208 struct nfs4_sequence_args seq_args;
1209 nfs4_stateid *stateid;
1210 };
1211
1212 struct nfs41_test_stateid_res {
1213 struct nfs4_sequence_res seq_res;
1214 unsigned int status;
1215 };
1216
1217 struct nfs41_free_stateid_args {
1218 struct nfs4_sequence_args seq_args;
1219 nfs4_stateid stateid;
1220 };
1221
1222 struct nfs41_free_stateid_res {
1223 struct nfs4_sequence_res seq_res;
1224 unsigned int status;
1225 };
1226
1227 static inline void
nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info * cinfo)1228 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
1229 {
1230 kfree(cinfo->buckets);
1231 }
1232
1233 #else
1234
1235 struct pnfs_ds_commit_info {
1236 };
1237
1238 static inline void
nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info * cinfo)1239 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
1240 {
1241 }
1242
1243 #endif /* CONFIG_NFS_V4_1 */
1244
1245 #ifdef CONFIG_NFS_V4_2
1246 struct nfs42_seek_args {
1247 struct nfs4_sequence_args seq_args;
1248
1249 struct nfs_fh *sa_fh;
1250 nfs4_stateid sa_stateid;
1251 u64 sa_offset;
1252 u32 sa_what;
1253 };
1254
1255 struct nfs42_seek_res {
1256 struct nfs4_sequence_res seq_res;
1257 unsigned int status;
1258
1259 u32 sr_eof;
1260 u64 sr_offset;
1261 };
1262 #endif
1263
1264 struct nfs_page;
1265
1266 #define NFS_PAGEVEC_SIZE (8U)
1267
1268 struct nfs_page_array {
1269 struct page **pagevec;
1270 unsigned int npages; /* Max length of pagevec */
1271 struct page *page_array[NFS_PAGEVEC_SIZE];
1272 };
1273
1274 /* used as flag bits in nfs_pgio_header */
1275 enum {
1276 NFS_IOHDR_ERROR = 0,
1277 NFS_IOHDR_EOF,
1278 NFS_IOHDR_REDO,
1279 };
1280
1281 struct nfs_pgio_header {
1282 struct inode *inode;
1283 struct rpc_cred *cred;
1284 struct list_head pages;
1285 struct nfs_page *req;
1286 struct nfs_writeverf verf; /* Used for writes */
1287 struct pnfs_layout_segment *lseg;
1288 loff_t io_start;
1289 const struct rpc_call_ops *mds_ops;
1290 void (*release) (struct nfs_pgio_header *hdr);
1291 const struct nfs_pgio_completion_ops *completion_ops;
1292 const struct nfs_rw_ops *rw_ops;
1293 struct nfs_direct_req *dreq;
1294 void *layout_private;
1295 spinlock_t lock;
1296 /* fields protected by lock */
1297 int pnfs_error;
1298 int error; /* merge with pnfs_error */
1299 unsigned long good_bytes; /* boundary of good data */
1300 unsigned long flags;
1301
1302 /*
1303 * rpc data
1304 */
1305 struct rpc_task task;
1306 struct nfs_fattr fattr;
1307 struct nfs_pgio_args args; /* argument struct */
1308 struct nfs_pgio_res res; /* result struct */
1309 unsigned long timestamp; /* For lease renewal */
1310 int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *);
1311 __u64 mds_offset; /* Filelayout dense stripe */
1312 struct nfs_page_array page_array;
1313 struct nfs_client *ds_clp; /* pNFS data server */
1314 int ds_idx; /* ds index if ds_clp is set */
1315 };
1316
1317 struct nfs_mds_commit_info {
1318 atomic_t rpcs_out;
1319 unsigned long ncommit;
1320 struct list_head list;
1321 };
1322
1323 struct nfs_commit_data;
1324 struct nfs_inode;
1325 struct nfs_commit_completion_ops {
1326 void (*error_cleanup) (struct nfs_inode *nfsi);
1327 void (*completion) (struct nfs_commit_data *data);
1328 };
1329
1330 struct nfs_commit_info {
1331 spinlock_t *lock; /* inode->i_lock */
1332 struct nfs_mds_commit_info *mds;
1333 struct pnfs_ds_commit_info *ds;
1334 struct nfs_direct_req *dreq; /* O_DIRECT request */
1335 const struct nfs_commit_completion_ops *completion_ops;
1336 };
1337
1338 struct nfs_commit_data {
1339 struct rpc_task task;
1340 struct inode *inode;
1341 struct rpc_cred *cred;
1342 struct nfs_fattr fattr;
1343 struct nfs_writeverf verf;
1344 struct list_head pages; /* Coalesced requests we wish to flush */
1345 struct list_head list; /* lists of struct nfs_write_data */
1346 struct nfs_direct_req *dreq; /* O_DIRECT request */
1347 struct nfs_commitargs args; /* argument struct */
1348 struct nfs_commitres res; /* result struct */
1349 struct nfs_open_context *context;
1350 struct pnfs_layout_segment *lseg;
1351 struct nfs_client *ds_clp; /* pNFS data server */
1352 int ds_commit_index;
1353 loff_t lwb;
1354 const struct rpc_call_ops *mds_ops;
1355 const struct nfs_commit_completion_ops *completion_ops;
1356 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
1357 };
1358
1359 struct nfs_pgio_completion_ops {
1360 void (*error_cleanup)(struct list_head *head);
1361 void (*init_hdr)(struct nfs_pgio_header *hdr);
1362 void (*completion)(struct nfs_pgio_header *hdr);
1363 };
1364
1365 struct nfs_unlinkdata {
1366 struct hlist_node list;
1367 struct nfs_removeargs args;
1368 struct nfs_removeres res;
1369 struct inode *dir;
1370 struct rpc_cred *cred;
1371 struct nfs_fattr dir_attr;
1372 long timeout;
1373 };
1374
1375 struct nfs_renamedata {
1376 struct nfs_renameargs args;
1377 struct nfs_renameres res;
1378 struct rpc_cred *cred;
1379 struct inode *old_dir;
1380 struct dentry *old_dentry;
1381 struct nfs_fattr old_fattr;
1382 struct inode *new_dir;
1383 struct dentry *new_dentry;
1384 struct nfs_fattr new_fattr;
1385 void (*complete)(struct rpc_task *, struct nfs_renamedata *);
1386 long timeout;
1387 };
1388
1389 struct nfs_access_entry;
1390 struct nfs_client;
1391 struct rpc_timeout;
1392 struct nfs_subversion;
1393 struct nfs_mount_info;
1394 struct nfs_client_initdata;
1395 struct nfs_pageio_descriptor;
1396
1397 /*
1398 * RPC procedure vector for NFSv2/NFSv3 demuxing
1399 */
1400 struct nfs_rpc_ops {
1401 u32 version; /* Protocol version */
1402 const struct dentry_operations *dentry_ops;
1403 const struct inode_operations *dir_inode_ops;
1404 const struct inode_operations *file_inode_ops;
1405 const struct file_operations *file_ops;
1406
1407 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1408 struct nfs_fsinfo *);
1409 struct vfsmount *(*submount) (struct nfs_server *, struct dentry *,
1410 struct nfs_fh *, struct nfs_fattr *);
1411 struct dentry *(*try_mount) (int, const char *, struct nfs_mount_info *,
1412 struct nfs_subversion *);
1413 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1414 struct nfs_fattr *, struct nfs4_label *);
1415 int (*setattr) (struct dentry *, struct nfs_fattr *,
1416 struct iattr *);
1417 int (*lookup) (struct inode *, struct qstr *,
1418 struct nfs_fh *, struct nfs_fattr *,
1419 struct nfs4_label *);
1420 int (*access) (struct inode *, struct nfs_access_entry *);
1421 int (*readlink)(struct inode *, struct page *, unsigned int,
1422 unsigned int);
1423 int (*create) (struct inode *, struct dentry *,
1424 struct iattr *, int);
1425 int (*remove) (struct inode *, struct qstr *);
1426 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1427 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
1428 int (*unlink_done) (struct rpc_task *, struct inode *);
1429 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1430 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
1431 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1432 int (*link) (struct inode *, struct inode *, struct qstr *);
1433 int (*symlink) (struct inode *, struct dentry *, struct page *,
1434 unsigned int, struct iattr *);
1435 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1436 int (*rmdir) (struct inode *, struct qstr *);
1437 int (*readdir) (struct dentry *, struct rpc_cred *,
1438 u64, struct page **, unsigned int, int);
1439 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1440 dev_t);
1441 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1442 struct nfs_fsstat *);
1443 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1444 struct nfs_fsinfo *);
1445 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1446 struct nfs_pathconf *);
1447 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1448 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1449 int (*pgio_rpc_prepare)(struct rpc_task *,
1450 struct nfs_pgio_header *);
1451 void (*read_setup)(struct nfs_pgio_header *, struct rpc_message *);
1452 int (*read_done)(struct rpc_task *, struct nfs_pgio_header *);
1453 void (*write_setup)(struct nfs_pgio_header *, struct rpc_message *);
1454 int (*write_done)(struct rpc_task *, struct nfs_pgio_header *);
1455 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *);
1456 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
1457 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *);
1458 int (*lock)(struct file *, int, struct file_lock *);
1459 int (*lock_check_bounds)(const struct file_lock *);
1460 void (*clear_acl_cache)(struct inode *);
1461 void (*close_context)(struct nfs_open_context *ctx, int);
1462 struct inode * (*open_context) (struct inode *dir,
1463 struct nfs_open_context *ctx,
1464 int open_flags,
1465 struct iattr *iattr,
1466 int *);
1467 int (*have_delegation)(struct inode *, fmode_t);
1468 int (*return_delegation)(struct inode *);
1469 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *);
1470 struct nfs_client *
1471 (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1472 const char *);
1473 void (*free_client) (struct nfs_client *);
1474 struct nfs_server *(*create_server)(struct nfs_mount_info *, struct nfs_subversion *);
1475 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *,
1476 struct nfs_fattr *, rpc_authflavor_t);
1477 };
1478
1479 /*
1480 * NFS_CALL(getattr, inode, (fattr));
1481 * into
1482 * NFS_PROTO(inode)->getattr(fattr);
1483 */
1484 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1485
1486 /*
1487 * Function vectors etc. for the NFS client
1488 */
1489 extern const struct nfs_rpc_ops nfs_v2_clientops;
1490 extern const struct nfs_rpc_ops nfs_v3_clientops;
1491 extern const struct nfs_rpc_ops nfs_v4_clientops;
1492 extern const struct rpc_version nfs_version2;
1493 extern const struct rpc_version nfs_version3;
1494 extern const struct rpc_version nfs_version4;
1495
1496 extern const struct rpc_version nfsacl_version3;
1497 extern const struct rpc_program nfsacl_program;
1498
1499 #endif
1500