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Merge tag 'v4.0-rc1' into locking/core, to refresh the tree before merging new changes
[mirror_ubuntu-zesty-kernel.git] / include / linux / nfs_xdr.h
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 */
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 inode *inode;
289 struct nfs4_layoutcommit_args args;
290 struct nfs4_layoutcommit_res res;
291 };
292
293 struct nfs4_layoutreturn_args {
294 struct nfs4_sequence_args seq_args;
295 struct pnfs_layout_hdr *layout;
296 struct inode *inode;
297 struct pnfs_layout_range range;
298 nfs4_stateid stateid;
299 __u32 layout_type;
300 };
301
302 struct nfs4_layoutreturn_res {
303 struct nfs4_sequence_res seq_res;
304 u32 lrs_present;
305 nfs4_stateid stateid;
306 };
307
308 struct nfs4_layoutreturn {
309 struct nfs4_layoutreturn_args args;
310 struct nfs4_layoutreturn_res res;
311 struct rpc_cred *cred;
312 struct nfs_client *clp;
313 struct inode *inode;
314 int rpc_status;
315 };
316
317 struct stateowner_id {
318 __u64 create_time;
319 __u32 uniquifier;
320 };
321
322 /*
323 * Arguments to the open call.
324 */
325 struct nfs_openargs {
326 struct nfs4_sequence_args seq_args;
327 const struct nfs_fh * fh;
328 struct nfs_seqid * seqid;
329 int open_flags;
330 fmode_t fmode;
331 u32 share_access;
332 u32 access;
333 __u64 clientid;
334 struct stateowner_id id;
335 union {
336 struct {
337 struct iattr * attrs; /* UNCHECKED, GUARDED */
338 nfs4_verifier verifier; /* EXCLUSIVE */
339 };
340 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
341 fmode_t delegation_type; /* CLAIM_PREVIOUS */
342 } u;
343 const struct qstr * name;
344 const struct nfs_server *server; /* Needed for ID mapping */
345 const u32 * bitmask;
346 const u32 * open_bitmap;
347 __u32 claim;
348 enum createmode4 createmode;
349 const struct nfs4_label *label;
350 };
351
352 struct nfs_openres {
353 struct nfs4_sequence_res seq_res;
354 nfs4_stateid stateid;
355 struct nfs_fh fh;
356 struct nfs4_change_info cinfo;
357 __u32 rflags;
358 struct nfs_fattr * f_attr;
359 struct nfs4_label *f_label;
360 struct nfs_seqid * seqid;
361 const struct nfs_server *server;
362 fmode_t delegation_type;
363 nfs4_stateid delegation;
364 __u32 do_recall;
365 __u64 maxsize;
366 __u32 attrset[NFS4_BITMAP_SIZE];
367 struct nfs4_string *owner;
368 struct nfs4_string *group_owner;
369 __u32 access_request;
370 __u32 access_supported;
371 __u32 access_result;
372 };
373
374 /*
375 * Arguments to the open_confirm call.
376 */
377 struct nfs_open_confirmargs {
378 struct nfs4_sequence_args seq_args;
379 const struct nfs_fh * fh;
380 nfs4_stateid * stateid;
381 struct nfs_seqid * seqid;
382 };
383
384 struct nfs_open_confirmres {
385 struct nfs4_sequence_res seq_res;
386 nfs4_stateid stateid;
387 struct nfs_seqid * seqid;
388 };
389
390 /*
391 * Arguments to the close call.
392 */
393 struct nfs_closeargs {
394 struct nfs4_sequence_args seq_args;
395 struct nfs_fh * fh;
396 nfs4_stateid stateid;
397 struct nfs_seqid * seqid;
398 fmode_t fmode;
399 u32 share_access;
400 const u32 * bitmask;
401 };
402
403 struct nfs_closeres {
404 struct nfs4_sequence_res seq_res;
405 nfs4_stateid stateid;
406 struct nfs_fattr * fattr;
407 struct nfs_seqid * seqid;
408 const struct nfs_server *server;
409 };
410 /*
411 * * Arguments to the lock,lockt, and locku call.
412 * */
413 struct nfs_lowner {
414 __u64 clientid;
415 __u64 id;
416 dev_t s_dev;
417 };
418
419 struct nfs_lock_args {
420 struct nfs4_sequence_args seq_args;
421 struct nfs_fh * fh;
422 struct file_lock * fl;
423 struct nfs_seqid * lock_seqid;
424 nfs4_stateid lock_stateid;
425 struct nfs_seqid * open_seqid;
426 nfs4_stateid open_stateid;
427 struct nfs_lowner lock_owner;
428 unsigned char block : 1;
429 unsigned char reclaim : 1;
430 unsigned char new_lock : 1;
431 unsigned char new_lock_owner : 1;
432 };
433
434 struct nfs_lock_res {
435 struct nfs4_sequence_res seq_res;
436 nfs4_stateid stateid;
437 struct nfs_seqid * lock_seqid;
438 struct nfs_seqid * open_seqid;
439 };
440
441 struct nfs_locku_args {
442 struct nfs4_sequence_args seq_args;
443 struct nfs_fh * fh;
444 struct file_lock * fl;
445 struct nfs_seqid * seqid;
446 nfs4_stateid stateid;
447 };
448
449 struct nfs_locku_res {
450 struct nfs4_sequence_res seq_res;
451 nfs4_stateid stateid;
452 struct nfs_seqid * seqid;
453 };
454
455 struct nfs_lockt_args {
456 struct nfs4_sequence_args seq_args;
457 struct nfs_fh * fh;
458 struct file_lock * fl;
459 struct nfs_lowner lock_owner;
460 };
461
462 struct nfs_lockt_res {
463 struct nfs4_sequence_res seq_res;
464 struct file_lock * denied; /* LOCK, LOCKT failed */
465 };
466
467 struct nfs_release_lockowner_args {
468 struct nfs4_sequence_args seq_args;
469 struct nfs_lowner lock_owner;
470 };
471
472 struct nfs_release_lockowner_res {
473 struct nfs4_sequence_res seq_res;
474 };
475
476 struct nfs4_delegreturnargs {
477 struct nfs4_sequence_args seq_args;
478 const struct nfs_fh *fhandle;
479 const nfs4_stateid *stateid;
480 const u32 * bitmask;
481 };
482
483 struct nfs4_delegreturnres {
484 struct nfs4_sequence_res seq_res;
485 struct nfs_fattr * fattr;
486 const struct nfs_server *server;
487 };
488
489 /*
490 * Arguments to the write call.
491 */
492 struct nfs_write_verifier {
493 char data[8];
494 };
495
496 struct nfs_writeverf {
497 struct nfs_write_verifier verifier;
498 enum nfs3_stable_how committed;
499 };
500
501 /*
502 * Arguments shared by the read and write call.
503 */
504 struct nfs_pgio_args {
505 struct nfs4_sequence_args seq_args;
506 struct nfs_fh * fh;
507 struct nfs_open_context *context;
508 struct nfs_lock_context *lock_context;
509 nfs4_stateid stateid;
510 __u64 offset;
511 __u32 count;
512 unsigned int pgbase;
513 struct page ** pages;
514 const u32 * bitmask; /* used by write */
515 enum nfs3_stable_how stable; /* used by write */
516 };
517
518 struct nfs_pgio_res {
519 struct nfs4_sequence_res seq_res;
520 struct nfs_fattr * fattr;
521 __u32 count;
522 __u32 op_status;
523 int eof; /* used by read */
524 struct nfs_writeverf * verf; /* used by write */
525 const struct nfs_server *server; /* used by write */
526
527 };
528
529 /*
530 * Arguments to the commit call.
531 */
532 struct nfs_commitargs {
533 struct nfs4_sequence_args seq_args;
534 struct nfs_fh *fh;
535 __u64 offset;
536 __u32 count;
537 const u32 *bitmask;
538 };
539
540 struct nfs_commitres {
541 struct nfs4_sequence_res seq_res;
542 __u32 op_status;
543 struct nfs_fattr *fattr;
544 struct nfs_writeverf *verf;
545 const struct nfs_server *server;
546 };
547
548 /*
549 * Common arguments to the unlink call
550 */
551 struct nfs_removeargs {
552 struct nfs4_sequence_args seq_args;
553 const struct nfs_fh *fh;
554 struct qstr name;
555 };
556
557 struct nfs_removeres {
558 struct nfs4_sequence_res seq_res;
559 const struct nfs_server *server;
560 struct nfs_fattr *dir_attr;
561 struct nfs4_change_info cinfo;
562 };
563
564 /*
565 * Common arguments to the rename call
566 */
567 struct nfs_renameargs {
568 struct nfs4_sequence_args seq_args;
569 const struct nfs_fh *old_dir;
570 const struct nfs_fh *new_dir;
571 const struct qstr *old_name;
572 const struct qstr *new_name;
573 };
574
575 struct nfs_renameres {
576 struct nfs4_sequence_res seq_res;
577 const struct nfs_server *server;
578 struct nfs4_change_info old_cinfo;
579 struct nfs_fattr *old_fattr;
580 struct nfs4_change_info new_cinfo;
581 struct nfs_fattr *new_fattr;
582 };
583
584 /* parsed sec= options */
585 #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */
586 struct nfs_auth_info {
587 unsigned int flavor_len;
588 rpc_authflavor_t flavors[NFS_AUTH_INFO_MAX_FLAVORS];
589 };
590
591 /*
592 * Argument struct for decode_entry function
593 */
594 struct nfs_entry {
595 __u64 ino;
596 __u64 cookie,
597 prev_cookie;
598 const char * name;
599 unsigned int len;
600 int eof;
601 struct nfs_fh * fh;
602 struct nfs_fattr * fattr;
603 struct nfs4_label *label;
604 unsigned char d_type;
605 struct nfs_server * server;
606 };
607
608 /*
609 * The following types are for NFSv2 only.
610 */
611 struct nfs_sattrargs {
612 struct nfs_fh * fh;
613 struct iattr * sattr;
614 };
615
616 struct nfs_diropargs {
617 struct nfs_fh * fh;
618 const char * name;
619 unsigned int len;
620 };
621
622 struct nfs_createargs {
623 struct nfs_fh * fh;
624 const char * name;
625 unsigned int len;
626 struct iattr * sattr;
627 };
628
629 struct nfs_setattrargs {
630 struct nfs4_sequence_args seq_args;
631 struct nfs_fh * fh;
632 nfs4_stateid stateid;
633 struct iattr * iap;
634 const struct nfs_server * server; /* Needed for name mapping */
635 const u32 * bitmask;
636 const struct nfs4_label *label;
637 };
638
639 struct nfs_setaclargs {
640 struct nfs4_sequence_args seq_args;
641 struct nfs_fh * fh;
642 size_t acl_len;
643 unsigned int acl_pgbase;
644 struct page ** acl_pages;
645 };
646
647 struct nfs_setaclres {
648 struct nfs4_sequence_res seq_res;
649 };
650
651 struct nfs_getaclargs {
652 struct nfs4_sequence_args seq_args;
653 struct nfs_fh * fh;
654 size_t acl_len;
655 unsigned int acl_pgbase;
656 struct page ** acl_pages;
657 };
658
659 /* getxattr ACL interface flags */
660 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
661 struct nfs_getaclres {
662 struct nfs4_sequence_res seq_res;
663 size_t acl_len;
664 size_t acl_data_offset;
665 int acl_flags;
666 struct page * acl_scratch;
667 };
668
669 struct nfs_setattrres {
670 struct nfs4_sequence_res seq_res;
671 struct nfs_fattr * fattr;
672 struct nfs4_label *label;
673 const struct nfs_server * server;
674 };
675
676 struct nfs_linkargs {
677 struct nfs_fh * fromfh;
678 struct nfs_fh * tofh;
679 const char * toname;
680 unsigned int tolen;
681 };
682
683 struct nfs_symlinkargs {
684 struct nfs_fh * fromfh;
685 const char * fromname;
686 unsigned int fromlen;
687 struct page ** pages;
688 unsigned int pathlen;
689 struct iattr * sattr;
690 };
691
692 struct nfs_readdirargs {
693 struct nfs_fh * fh;
694 __u32 cookie;
695 unsigned int count;
696 struct page ** pages;
697 };
698
699 struct nfs3_getaclargs {
700 struct nfs_fh * fh;
701 int mask;
702 struct page ** pages;
703 };
704
705 struct nfs3_setaclargs {
706 struct inode * inode;
707 int mask;
708 struct posix_acl * acl_access;
709 struct posix_acl * acl_default;
710 size_t len;
711 unsigned int npages;
712 struct page ** pages;
713 };
714
715 struct nfs_diropok {
716 struct nfs_fh * fh;
717 struct nfs_fattr * fattr;
718 };
719
720 struct nfs_readlinkargs {
721 struct nfs_fh * fh;
722 unsigned int pgbase;
723 unsigned int pglen;
724 struct page ** pages;
725 };
726
727 struct nfs3_sattrargs {
728 struct nfs_fh * fh;
729 struct iattr * sattr;
730 unsigned int guard;
731 struct timespec guardtime;
732 };
733
734 struct nfs3_diropargs {
735 struct nfs_fh * fh;
736 const char * name;
737 unsigned int len;
738 };
739
740 struct nfs3_accessargs {
741 struct nfs_fh * fh;
742 __u32 access;
743 };
744
745 struct nfs3_createargs {
746 struct nfs_fh * fh;
747 const char * name;
748 unsigned int len;
749 struct iattr * sattr;
750 enum nfs3_createmode createmode;
751 __be32 verifier[2];
752 };
753
754 struct nfs3_mkdirargs {
755 struct nfs_fh * fh;
756 const char * name;
757 unsigned int len;
758 struct iattr * sattr;
759 };
760
761 struct nfs3_symlinkargs {
762 struct nfs_fh * fromfh;
763 const char * fromname;
764 unsigned int fromlen;
765 struct page ** pages;
766 unsigned int pathlen;
767 struct iattr * sattr;
768 };
769
770 struct nfs3_mknodargs {
771 struct nfs_fh * fh;
772 const char * name;
773 unsigned int len;
774 enum nfs3_ftype type;
775 struct iattr * sattr;
776 dev_t rdev;
777 };
778
779 struct nfs3_linkargs {
780 struct nfs_fh * fromfh;
781 struct nfs_fh * tofh;
782 const char * toname;
783 unsigned int tolen;
784 };
785
786 struct nfs3_readdirargs {
787 struct nfs_fh * fh;
788 __u64 cookie;
789 __be32 verf[2];
790 int plus;
791 unsigned int count;
792 struct page ** pages;
793 };
794
795 struct nfs3_diropres {
796 struct nfs_fattr * dir_attr;
797 struct nfs_fh * fh;
798 struct nfs_fattr * fattr;
799 };
800
801 struct nfs3_accessres {
802 struct nfs_fattr * fattr;
803 __u32 access;
804 };
805
806 struct nfs3_readlinkargs {
807 struct nfs_fh * fh;
808 unsigned int pgbase;
809 unsigned int pglen;
810 struct page ** pages;
811 };
812
813 struct nfs3_linkres {
814 struct nfs_fattr * dir_attr;
815 struct nfs_fattr * fattr;
816 };
817
818 struct nfs3_readdirres {
819 struct nfs_fattr * dir_attr;
820 __be32 * verf;
821 int plus;
822 };
823
824 struct nfs3_getaclres {
825 struct nfs_fattr * fattr;
826 int mask;
827 unsigned int acl_access_count;
828 unsigned int acl_default_count;
829 struct posix_acl * acl_access;
830 struct posix_acl * acl_default;
831 };
832
833 #if IS_ENABLED(CONFIG_NFS_V4)
834
835 typedef u64 clientid4;
836
837 struct nfs4_accessargs {
838 struct nfs4_sequence_args seq_args;
839 const struct nfs_fh * fh;
840 const u32 * bitmask;
841 u32 access;
842 };
843
844 struct nfs4_accessres {
845 struct nfs4_sequence_res seq_res;
846 const struct nfs_server * server;
847 struct nfs_fattr * fattr;
848 u32 supported;
849 u32 access;
850 };
851
852 struct nfs4_create_arg {
853 struct nfs4_sequence_args seq_args;
854 u32 ftype;
855 union {
856 struct {
857 struct page ** pages;
858 unsigned int len;
859 } symlink; /* NF4LNK */
860 struct {
861 u32 specdata1;
862 u32 specdata2;
863 } device; /* NF4BLK, NF4CHR */
864 } u;
865 const struct qstr * name;
866 const struct nfs_server * server;
867 const struct iattr * attrs;
868 const struct nfs_fh * dir_fh;
869 const u32 * bitmask;
870 const struct nfs4_label *label;
871 };
872
873 struct nfs4_create_res {
874 struct nfs4_sequence_res seq_res;
875 const struct nfs_server * server;
876 struct nfs_fh * fh;
877 struct nfs_fattr * fattr;
878 struct nfs4_label *label;
879 struct nfs4_change_info dir_cinfo;
880 };
881
882 struct nfs4_fsinfo_arg {
883 struct nfs4_sequence_args seq_args;
884 const struct nfs_fh * fh;
885 const u32 * bitmask;
886 };
887
888 struct nfs4_fsinfo_res {
889 struct nfs4_sequence_res seq_res;
890 struct nfs_fsinfo *fsinfo;
891 };
892
893 struct nfs4_getattr_arg {
894 struct nfs4_sequence_args seq_args;
895 const struct nfs_fh * fh;
896 const u32 * bitmask;
897 };
898
899 struct nfs4_getattr_res {
900 struct nfs4_sequence_res seq_res;
901 const struct nfs_server * server;
902 struct nfs_fattr * fattr;
903 struct nfs4_label *label;
904 };
905
906 struct nfs4_link_arg {
907 struct nfs4_sequence_args seq_args;
908 const struct nfs_fh * fh;
909 const struct nfs_fh * dir_fh;
910 const struct qstr * name;
911 const u32 * bitmask;
912 };
913
914 struct nfs4_link_res {
915 struct nfs4_sequence_res seq_res;
916 const struct nfs_server * server;
917 struct nfs_fattr * fattr;
918 struct nfs4_label *label;
919 struct nfs4_change_info cinfo;
920 struct nfs_fattr * dir_attr;
921 };
922
923
924 struct nfs4_lookup_arg {
925 struct nfs4_sequence_args seq_args;
926 const struct nfs_fh * dir_fh;
927 const struct qstr * name;
928 const u32 * bitmask;
929 };
930
931 struct nfs4_lookup_res {
932 struct nfs4_sequence_res seq_res;
933 const struct nfs_server * server;
934 struct nfs_fattr * fattr;
935 struct nfs_fh * fh;
936 struct nfs4_label *label;
937 };
938
939 struct nfs4_lookup_root_arg {
940 struct nfs4_sequence_args seq_args;
941 const u32 * bitmask;
942 };
943
944 struct nfs4_pathconf_arg {
945 struct nfs4_sequence_args seq_args;
946 const struct nfs_fh * fh;
947 const u32 * bitmask;
948 };
949
950 struct nfs4_pathconf_res {
951 struct nfs4_sequence_res seq_res;
952 struct nfs_pathconf *pathconf;
953 };
954
955 struct nfs4_readdir_arg {
956 struct nfs4_sequence_args seq_args;
957 const struct nfs_fh * fh;
958 u64 cookie;
959 nfs4_verifier verifier;
960 u32 count;
961 struct page ** pages; /* zero-copy data */
962 unsigned int pgbase; /* zero-copy data */
963 const u32 * bitmask;
964 int plus;
965 };
966
967 struct nfs4_readdir_res {
968 struct nfs4_sequence_res seq_res;
969 nfs4_verifier verifier;
970 unsigned int pgbase;
971 };
972
973 struct nfs4_readlink {
974 struct nfs4_sequence_args seq_args;
975 const struct nfs_fh * fh;
976 unsigned int pgbase;
977 unsigned int pglen; /* zero-copy data */
978 struct page ** pages; /* zero-copy data */
979 };
980
981 struct nfs4_readlink_res {
982 struct nfs4_sequence_res seq_res;
983 };
984
985 #define NFS4_SETCLIENTID_NAMELEN (127)
986 struct nfs4_setclientid {
987 const nfs4_verifier * sc_verifier;
988 unsigned int sc_name_len;
989 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
990 u32 sc_prog;
991 unsigned int sc_netid_len;
992 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
993 unsigned int sc_uaddr_len;
994 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
995 u32 sc_cb_ident;
996 struct rpc_cred *sc_cred;
997 };
998
999 struct nfs4_setclientid_res {
1000 u64 clientid;
1001 nfs4_verifier confirm;
1002 };
1003
1004 struct nfs4_statfs_arg {
1005 struct nfs4_sequence_args seq_args;
1006 const struct nfs_fh * fh;
1007 const u32 * bitmask;
1008 };
1009
1010 struct nfs4_statfs_res {
1011 struct nfs4_sequence_res seq_res;
1012 struct nfs_fsstat *fsstat;
1013 };
1014
1015 struct nfs4_server_caps_arg {
1016 struct nfs4_sequence_args seq_args;
1017 struct nfs_fh *fhandle;
1018 };
1019
1020 struct nfs4_server_caps_res {
1021 struct nfs4_sequence_res seq_res;
1022 u32 attr_bitmask[3];
1023 u32 acl_bitmask;
1024 u32 has_links;
1025 u32 has_symlinks;
1026 u32 fh_expire_type;
1027 };
1028
1029 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1030 struct nfs4_pathname {
1031 unsigned int ncomponents;
1032 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
1033 };
1034
1035 #define NFS4_FS_LOCATION_MAXSERVERS 10
1036 struct nfs4_fs_location {
1037 unsigned int nservers;
1038 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
1039 struct nfs4_pathname rootpath;
1040 };
1041
1042 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1043 struct nfs4_fs_locations {
1044 struct nfs_fattr fattr;
1045 const struct nfs_server *server;
1046 struct nfs4_pathname fs_path;
1047 int nlocations;
1048 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
1049 };
1050
1051 struct nfs4_fs_locations_arg {
1052 struct nfs4_sequence_args seq_args;
1053 const struct nfs_fh *dir_fh;
1054 const struct nfs_fh *fh;
1055 const struct qstr *name;
1056 struct page *page;
1057 const u32 *bitmask;
1058 clientid4 clientid;
1059 unsigned char migration:1, renew:1;
1060 };
1061
1062 struct nfs4_fs_locations_res {
1063 struct nfs4_sequence_res seq_res;
1064 struct nfs4_fs_locations *fs_locations;
1065 unsigned char migration:1, renew:1;
1066 };
1067
1068 struct nfs4_secinfo4 {
1069 u32 flavor;
1070 struct rpcsec_gss_info flavor_info;
1071 };
1072
1073 struct nfs4_secinfo_flavors {
1074 unsigned int num_flavors;
1075 struct nfs4_secinfo4 flavors[0];
1076 };
1077
1078 struct nfs4_secinfo_arg {
1079 struct nfs4_sequence_args seq_args;
1080 const struct nfs_fh *dir_fh;
1081 const struct qstr *name;
1082 };
1083
1084 struct nfs4_secinfo_res {
1085 struct nfs4_sequence_res seq_res;
1086 struct nfs4_secinfo_flavors *flavors;
1087 };
1088
1089 struct nfs4_fsid_present_arg {
1090 struct nfs4_sequence_args seq_args;
1091 const struct nfs_fh *fh;
1092 clientid4 clientid;
1093 unsigned char renew:1;
1094 };
1095
1096 struct nfs4_fsid_present_res {
1097 struct nfs4_sequence_res seq_res;
1098 struct nfs_fh *fh;
1099 unsigned char renew:1;
1100 };
1101
1102 #endif /* CONFIG_NFS_V4 */
1103
1104 struct nfstime4 {
1105 u64 seconds;
1106 u32 nseconds;
1107 };
1108
1109 #ifdef CONFIG_NFS_V4_1
1110
1111 struct pnfs_commit_bucket {
1112 struct list_head written;
1113 struct list_head committing;
1114 struct pnfs_layout_segment *wlseg;
1115 struct pnfs_layout_segment *clseg;
1116 struct nfs_writeverf direct_verf;
1117 };
1118
1119 struct pnfs_ds_commit_info {
1120 int nwritten;
1121 int ncommitting;
1122 int nbuckets;
1123 struct pnfs_commit_bucket *buckets;
1124 };
1125
1126 #define NFS4_OP_MAP_NUM_LONGS \
1127 DIV_ROUND_UP(LAST_NFS4_OP, 8 * sizeof(unsigned long))
1128 #define NFS4_OP_MAP_NUM_WORDS \
1129 (NFS4_OP_MAP_NUM_LONGS * sizeof(unsigned long) / sizeof(u32))
1130 struct nfs4_op_map {
1131 union {
1132 unsigned long longs[NFS4_OP_MAP_NUM_LONGS];
1133 u32 words[NFS4_OP_MAP_NUM_WORDS];
1134 } u;
1135 };
1136
1137 struct nfs41_state_protection {
1138 u32 how;
1139 struct nfs4_op_map enforce;
1140 struct nfs4_op_map allow;
1141 };
1142
1143 #define NFS4_EXCHANGE_ID_LEN (48)
1144 struct nfs41_exchange_id_args {
1145 struct nfs_client *client;
1146 nfs4_verifier *verifier;
1147 unsigned int id_len;
1148 char id[NFS4_EXCHANGE_ID_LEN];
1149 u32 flags;
1150 struct nfs41_state_protection state_protect;
1151 };
1152
1153 struct nfs41_server_owner {
1154 uint64_t minor_id;
1155 uint32_t major_id_sz;
1156 char major_id[NFS4_OPAQUE_LIMIT];
1157 };
1158
1159 struct nfs41_server_scope {
1160 uint32_t server_scope_sz;
1161 char server_scope[NFS4_OPAQUE_LIMIT];
1162 };
1163
1164 struct nfs41_impl_id {
1165 char domain[NFS4_OPAQUE_LIMIT + 1];
1166 char name[NFS4_OPAQUE_LIMIT + 1];
1167 struct nfstime4 date;
1168 };
1169
1170 struct nfs41_bind_conn_to_session_args {
1171 struct nfs_client *client;
1172 struct nfs4_sessionid sessionid;
1173 u32 dir;
1174 bool use_conn_in_rdma_mode;
1175 };
1176
1177 struct nfs41_bind_conn_to_session_res {
1178 struct nfs4_sessionid sessionid;
1179 u32 dir;
1180 bool use_conn_in_rdma_mode;
1181 };
1182
1183 struct nfs41_exchange_id_res {
1184 u64 clientid;
1185 u32 seqid;
1186 u32 flags;
1187 struct nfs41_server_owner *server_owner;
1188 struct nfs41_server_scope *server_scope;
1189 struct nfs41_impl_id *impl_id;
1190 struct nfs41_state_protection state_protect;
1191 };
1192
1193 struct nfs41_create_session_args {
1194 struct nfs_client *client;
1195 u64 clientid;
1196 uint32_t seqid;
1197 uint32_t flags;
1198 uint32_t cb_program;
1199 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1200 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1201 };
1202
1203 struct nfs41_create_session_res {
1204 struct nfs4_sessionid sessionid;
1205 uint32_t seqid;
1206 uint32_t flags;
1207 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1208 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1209 };
1210
1211 struct nfs41_reclaim_complete_args {
1212 struct nfs4_sequence_args seq_args;
1213 /* In the future extend to include curr_fh for use with migration */
1214 unsigned char one_fs:1;
1215 };
1216
1217 struct nfs41_reclaim_complete_res {
1218 struct nfs4_sequence_res seq_res;
1219 };
1220
1221 #define SECINFO_STYLE_CURRENT_FH 0
1222 #define SECINFO_STYLE_PARENT 1
1223 struct nfs41_secinfo_no_name_args {
1224 struct nfs4_sequence_args seq_args;
1225 int style;
1226 };
1227
1228 struct nfs41_test_stateid_args {
1229 struct nfs4_sequence_args seq_args;
1230 nfs4_stateid *stateid;
1231 };
1232
1233 struct nfs41_test_stateid_res {
1234 struct nfs4_sequence_res seq_res;
1235 unsigned int status;
1236 };
1237
1238 struct nfs41_free_stateid_args {
1239 struct nfs4_sequence_args seq_args;
1240 nfs4_stateid stateid;
1241 };
1242
1243 struct nfs41_free_stateid_res {
1244 struct nfs4_sequence_res seq_res;
1245 unsigned int status;
1246 };
1247
1248 static inline void
1249 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
1250 {
1251 kfree(cinfo->buckets);
1252 }
1253
1254 #else
1255
1256 struct pnfs_ds_commit_info {
1257 };
1258
1259 static inline void
1260 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
1261 {
1262 }
1263
1264 #endif /* CONFIG_NFS_V4_1 */
1265
1266 #ifdef CONFIG_NFS_V4_2
1267 struct nfs42_falloc_args {
1268 struct nfs4_sequence_args seq_args;
1269
1270 struct nfs_fh *falloc_fh;
1271 nfs4_stateid falloc_stateid;
1272 u64 falloc_offset;
1273 u64 falloc_length;
1274 };
1275
1276 struct nfs42_falloc_res {
1277 struct nfs4_sequence_res seq_res;
1278 unsigned int status;
1279 };
1280
1281 struct nfs42_seek_args {
1282 struct nfs4_sequence_args seq_args;
1283
1284 struct nfs_fh *sa_fh;
1285 nfs4_stateid sa_stateid;
1286 u64 sa_offset;
1287 u32 sa_what;
1288 };
1289
1290 struct nfs42_seek_res {
1291 struct nfs4_sequence_res seq_res;
1292 unsigned int status;
1293
1294 u32 sr_eof;
1295 u64 sr_offset;
1296 };
1297 #endif
1298
1299 struct nfs_page;
1300
1301 #define NFS_PAGEVEC_SIZE (8U)
1302
1303 struct nfs_page_array {
1304 struct page **pagevec;
1305 unsigned int npages; /* Max length of pagevec */
1306 struct page *page_array[NFS_PAGEVEC_SIZE];
1307 };
1308
1309 /* used as flag bits in nfs_pgio_header */
1310 enum {
1311 NFS_IOHDR_ERROR = 0,
1312 NFS_IOHDR_EOF,
1313 NFS_IOHDR_REDO,
1314 };
1315
1316 struct nfs_pgio_header {
1317 struct inode *inode;
1318 struct rpc_cred *cred;
1319 struct list_head pages;
1320 struct nfs_page *req;
1321 struct nfs_writeverf verf; /* Used for writes */
1322 struct pnfs_layout_segment *lseg;
1323 loff_t io_start;
1324 const struct rpc_call_ops *mds_ops;
1325 void (*release) (struct nfs_pgio_header *hdr);
1326 const struct nfs_pgio_completion_ops *completion_ops;
1327 const struct nfs_rw_ops *rw_ops;
1328 struct nfs_direct_req *dreq;
1329 void *layout_private;
1330 spinlock_t lock;
1331 /* fields protected by lock */
1332 int pnfs_error;
1333 int error; /* merge with pnfs_error */
1334 unsigned long good_bytes; /* boundary of good data */
1335 unsigned long flags;
1336
1337 /*
1338 * rpc data
1339 */
1340 struct rpc_task task;
1341 struct nfs_fattr fattr;
1342 struct nfs_pgio_args args; /* argument struct */
1343 struct nfs_pgio_res res; /* result struct */
1344 unsigned long timestamp; /* For lease renewal */
1345 int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *);
1346 __u64 mds_offset; /* Filelayout dense stripe */
1347 struct nfs_page_array page_array;
1348 struct nfs_client *ds_clp; /* pNFS data server */
1349 int ds_commit_idx; /* ds index if ds_clp is set */
1350 int pgio_mirror_idx;/* mirror index in pgio layer */
1351 };
1352
1353 struct nfs_mds_commit_info {
1354 atomic_t rpcs_out;
1355 unsigned long ncommit;
1356 struct list_head list;
1357 };
1358
1359 struct nfs_commit_data;
1360 struct nfs_inode;
1361 struct nfs_commit_completion_ops {
1362 void (*error_cleanup) (struct nfs_inode *nfsi);
1363 void (*completion) (struct nfs_commit_data *data);
1364 };
1365
1366 struct nfs_commit_info {
1367 spinlock_t *lock; /* inode->i_lock */
1368 struct nfs_mds_commit_info *mds;
1369 struct pnfs_ds_commit_info *ds;
1370 struct nfs_direct_req *dreq; /* O_DIRECT request */
1371 const struct nfs_commit_completion_ops *completion_ops;
1372 };
1373
1374 struct nfs_commit_data {
1375 struct rpc_task task;
1376 struct inode *inode;
1377 struct rpc_cred *cred;
1378 struct nfs_fattr fattr;
1379 struct nfs_writeverf verf;
1380 struct list_head pages; /* Coalesced requests we wish to flush */
1381 struct list_head list; /* lists of struct nfs_write_data */
1382 struct nfs_direct_req *dreq; /* O_DIRECT request */
1383 struct nfs_commitargs args; /* argument struct */
1384 struct nfs_commitres res; /* result struct */
1385 struct nfs_open_context *context;
1386 struct pnfs_layout_segment *lseg;
1387 struct nfs_client *ds_clp; /* pNFS data server */
1388 int ds_commit_index;
1389 loff_t lwb;
1390 const struct rpc_call_ops *mds_ops;
1391 const struct nfs_commit_completion_ops *completion_ops;
1392 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
1393 };
1394
1395 struct nfs_pgio_completion_ops {
1396 void (*error_cleanup)(struct list_head *head);
1397 void (*init_hdr)(struct nfs_pgio_header *hdr);
1398 void (*completion)(struct nfs_pgio_header *hdr);
1399 };
1400
1401 struct nfs_unlinkdata {
1402 struct hlist_node list;
1403 struct nfs_removeargs args;
1404 struct nfs_removeres res;
1405 struct inode *dir;
1406 struct rpc_cred *cred;
1407 struct nfs_fattr dir_attr;
1408 long timeout;
1409 };
1410
1411 struct nfs_renamedata {
1412 struct nfs_renameargs args;
1413 struct nfs_renameres res;
1414 struct rpc_cred *cred;
1415 struct inode *old_dir;
1416 struct dentry *old_dentry;
1417 struct nfs_fattr old_fattr;
1418 struct inode *new_dir;
1419 struct dentry *new_dentry;
1420 struct nfs_fattr new_fattr;
1421 void (*complete)(struct rpc_task *, struct nfs_renamedata *);
1422 long timeout;
1423 };
1424
1425 struct nfs_access_entry;
1426 struct nfs_client;
1427 struct rpc_timeout;
1428 struct nfs_subversion;
1429 struct nfs_mount_info;
1430 struct nfs_client_initdata;
1431 struct nfs_pageio_descriptor;
1432
1433 /*
1434 * RPC procedure vector for NFSv2/NFSv3 demuxing
1435 */
1436 struct nfs_rpc_ops {
1437 u32 version; /* Protocol version */
1438 const struct dentry_operations *dentry_ops;
1439 const struct inode_operations *dir_inode_ops;
1440 const struct inode_operations *file_inode_ops;
1441 const struct file_operations *file_ops;
1442
1443 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1444 struct nfs_fsinfo *);
1445 struct vfsmount *(*submount) (struct nfs_server *, struct dentry *,
1446 struct nfs_fh *, struct nfs_fattr *);
1447 struct dentry *(*try_mount) (int, const char *, struct nfs_mount_info *,
1448 struct nfs_subversion *);
1449 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1450 struct nfs_fattr *, struct nfs4_label *);
1451 int (*setattr) (struct dentry *, struct nfs_fattr *,
1452 struct iattr *);
1453 int (*lookup) (struct inode *, struct qstr *,
1454 struct nfs_fh *, struct nfs_fattr *,
1455 struct nfs4_label *);
1456 int (*access) (struct inode *, struct nfs_access_entry *);
1457 int (*readlink)(struct inode *, struct page *, unsigned int,
1458 unsigned int);
1459 int (*create) (struct inode *, struct dentry *,
1460 struct iattr *, int);
1461 int (*remove) (struct inode *, struct qstr *);
1462 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1463 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
1464 int (*unlink_done) (struct rpc_task *, struct inode *);
1465 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1466 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
1467 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1468 int (*link) (struct inode *, struct inode *, struct qstr *);
1469 int (*symlink) (struct inode *, struct dentry *, struct page *,
1470 unsigned int, struct iattr *);
1471 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1472 int (*rmdir) (struct inode *, struct qstr *);
1473 int (*readdir) (struct dentry *, struct rpc_cred *,
1474 u64, struct page **, unsigned int, int);
1475 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1476 dev_t);
1477 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1478 struct nfs_fsstat *);
1479 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1480 struct nfs_fsinfo *);
1481 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1482 struct nfs_pathconf *);
1483 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1484 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1485 int (*pgio_rpc_prepare)(struct rpc_task *,
1486 struct nfs_pgio_header *);
1487 void (*read_setup)(struct nfs_pgio_header *, struct rpc_message *);
1488 int (*read_done)(struct rpc_task *, struct nfs_pgio_header *);
1489 void (*write_setup)(struct nfs_pgio_header *, struct rpc_message *);
1490 int (*write_done)(struct rpc_task *, struct nfs_pgio_header *);
1491 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *);
1492 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
1493 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *);
1494 int (*lock)(struct file *, int, struct file_lock *);
1495 int (*lock_check_bounds)(const struct file_lock *);
1496 void (*clear_acl_cache)(struct inode *);
1497 void (*close_context)(struct nfs_open_context *ctx, int);
1498 struct inode * (*open_context) (struct inode *dir,
1499 struct nfs_open_context *ctx,
1500 int open_flags,
1501 struct iattr *iattr,
1502 int *);
1503 int (*have_delegation)(struct inode *, fmode_t);
1504 int (*return_delegation)(struct inode *);
1505 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *);
1506 struct nfs_client *
1507 (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1508 const char *);
1509 void (*free_client) (struct nfs_client *);
1510 struct nfs_server *(*create_server)(struct nfs_mount_info *, struct nfs_subversion *);
1511 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *,
1512 struct nfs_fattr *, rpc_authflavor_t);
1513 };
1514
1515 /*
1516 * NFS_CALL(getattr, inode, (fattr));
1517 * into
1518 * NFS_PROTO(inode)->getattr(fattr);
1519 */
1520 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1521
1522 /*
1523 * Function vectors etc. for the NFS client
1524 */
1525 extern const struct nfs_rpc_ops nfs_v2_clientops;
1526 extern const struct nfs_rpc_ops nfs_v3_clientops;
1527 extern const struct nfs_rpc_ops nfs_v4_clientops;
1528 extern const struct rpc_version nfs_version2;
1529 extern const struct rpc_version nfs_version3;
1530 extern const struct rpc_version nfs_version4;
1531
1532 extern const struct rpc_version nfsacl_version3;
1533 extern const struct rpc_program nfsacl_program;
1534
1535 #endif
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