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 __u32 notify_types;
259 };
260
261 struct nfs4_getdeviceinfo_res {
262 struct nfs4_sequence_res seq_res;
263 struct pnfs_device *pdev;
264 __u32 notification;
265 };
266
267 struct nfs4_layoutcommit_args {
268 struct nfs4_sequence_args seq_args;
269 nfs4_stateid stateid;
270 __u64 lastbytewritten;
271 struct inode *inode;
272 const u32 *bitmask;
273 size_t layoutupdate_len;
274 struct page *layoutupdate_page;
275 struct page **layoutupdate_pages;
276 };
277
278 struct nfs4_layoutcommit_res {
279 struct nfs4_sequence_res seq_res;
280 struct nfs_fattr *fattr;
281 const struct nfs_server *server;
282 int status;
283 };
284
285 struct nfs4_layoutcommit_data {
286 struct rpc_task task;
287 struct nfs_fattr fattr;
288 struct list_head lseg_list;
289 struct rpc_cred *cred;
290 struct inode *inode;
291 struct nfs4_layoutcommit_args args;
292 struct nfs4_layoutcommit_res res;
293 };
294
295 struct nfs4_layoutreturn_args {
296 struct nfs4_sequence_args seq_args;
297 struct pnfs_layout_hdr *layout;
298 struct inode *inode;
299 struct pnfs_layout_range range;
300 nfs4_stateid stateid;
301 __u32 layout_type;
302 };
303
304 struct nfs4_layoutreturn_res {
305 struct nfs4_sequence_res seq_res;
306 u32 lrs_present;
307 nfs4_stateid stateid;
308 };
309
310 struct nfs4_layoutreturn {
311 struct nfs4_layoutreturn_args args;
312 struct nfs4_layoutreturn_res res;
313 struct rpc_cred *cred;
314 struct nfs_client *clp;
315 struct inode *inode;
316 int rpc_status;
317 };
318
319 struct stateowner_id {
320 __u64 create_time;
321 __u32 uniquifier;
322 };
323
324 /*
325 * Arguments to the open call.
326 */
327 struct nfs_openargs {
328 struct nfs4_sequence_args seq_args;
329 const struct nfs_fh * fh;
330 struct nfs_seqid * seqid;
331 int open_flags;
332 fmode_t fmode;
333 u32 share_access;
334 u32 access;
335 __u64 clientid;
336 struct stateowner_id id;
337 union {
338 struct {
339 struct iattr * attrs; /* UNCHECKED, GUARDED */
340 nfs4_verifier verifier; /* EXCLUSIVE */
341 };
342 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
343 fmode_t delegation_type; /* CLAIM_PREVIOUS */
344 } u;
345 const struct qstr * name;
346 const struct nfs_server *server; /* Needed for ID mapping */
347 const u32 * bitmask;
348 const u32 * open_bitmap;
349 __u32 claim;
350 enum createmode4 createmode;
351 const struct nfs4_label *label;
352 };
353
354 struct nfs_openres {
355 struct nfs4_sequence_res seq_res;
356 nfs4_stateid stateid;
357 struct nfs_fh fh;
358 struct nfs4_change_info cinfo;
359 __u32 rflags;
360 struct nfs_fattr * f_attr;
361 struct nfs4_label *f_label;
362 struct nfs_seqid * seqid;
363 const struct nfs_server *server;
364 fmode_t delegation_type;
365 nfs4_stateid delegation;
366 __u32 do_recall;
367 __u64 maxsize;
368 __u32 attrset[NFS4_BITMAP_SIZE];
369 struct nfs4_string *owner;
370 struct nfs4_string *group_owner;
371 __u32 access_request;
372 __u32 access_supported;
373 __u32 access_result;
374 };
375
376 /*
377 * Arguments to the open_confirm call.
378 */
379 struct nfs_open_confirmargs {
380 struct nfs4_sequence_args seq_args;
381 const struct nfs_fh * fh;
382 nfs4_stateid * stateid;
383 struct nfs_seqid * seqid;
384 };
385
386 struct nfs_open_confirmres {
387 struct nfs4_sequence_res seq_res;
388 nfs4_stateid stateid;
389 struct nfs_seqid * seqid;
390 };
391
392 /*
393 * Arguments to the close call.
394 */
395 struct nfs_closeargs {
396 struct nfs4_sequence_args seq_args;
397 struct nfs_fh * fh;
398 nfs4_stateid stateid;
399 struct nfs_seqid * seqid;
400 fmode_t fmode;
401 u32 share_access;
402 const u32 * bitmask;
403 };
404
405 struct nfs_closeres {
406 struct nfs4_sequence_res seq_res;
407 nfs4_stateid stateid;
408 struct nfs_fattr * fattr;
409 struct nfs_seqid * seqid;
410 const struct nfs_server *server;
411 };
412 /*
413 * * Arguments to the lock,lockt, and locku call.
414 * */
415 struct nfs_lowner {
416 __u64 clientid;
417 __u64 id;
418 dev_t s_dev;
419 };
420
421 struct nfs_lock_args {
422 struct nfs4_sequence_args seq_args;
423 struct nfs_fh * fh;
424 struct file_lock * fl;
425 struct nfs_seqid * lock_seqid;
426 nfs4_stateid lock_stateid;
427 struct nfs_seqid * open_seqid;
428 nfs4_stateid open_stateid;
429 struct nfs_lowner lock_owner;
430 unsigned char block : 1;
431 unsigned char reclaim : 1;
432 unsigned char new_lock : 1;
433 unsigned char new_lock_owner : 1;
434 };
435
436 struct nfs_lock_res {
437 struct nfs4_sequence_res seq_res;
438 nfs4_stateid stateid;
439 struct nfs_seqid * lock_seqid;
440 struct nfs_seqid * open_seqid;
441 };
442
443 struct nfs_locku_args {
444 struct nfs4_sequence_args seq_args;
445 struct nfs_fh * fh;
446 struct file_lock * fl;
447 struct nfs_seqid * seqid;
448 nfs4_stateid stateid;
449 };
450
451 struct nfs_locku_res {
452 struct nfs4_sequence_res seq_res;
453 nfs4_stateid stateid;
454 struct nfs_seqid * seqid;
455 };
456
457 struct nfs_lockt_args {
458 struct nfs4_sequence_args seq_args;
459 struct nfs_fh * fh;
460 struct file_lock * fl;
461 struct nfs_lowner lock_owner;
462 };
463
464 struct nfs_lockt_res {
465 struct nfs4_sequence_res seq_res;
466 struct file_lock * denied; /* LOCK, LOCKT failed */
467 };
468
469 struct nfs_release_lockowner_args {
470 struct nfs4_sequence_args seq_args;
471 struct nfs_lowner lock_owner;
472 };
473
474 struct nfs_release_lockowner_res {
475 struct nfs4_sequence_res seq_res;
476 };
477
478 struct nfs4_delegreturnargs {
479 struct nfs4_sequence_args seq_args;
480 const struct nfs_fh *fhandle;
481 const nfs4_stateid *stateid;
482 const u32 * bitmask;
483 };
484
485 struct nfs4_delegreturnres {
486 struct nfs4_sequence_res seq_res;
487 struct nfs_fattr * fattr;
488 const struct nfs_server *server;
489 };
490
491 /*
492 * Arguments to the write call.
493 */
494 struct nfs_write_verifier {
495 char data[8];
496 };
497
498 struct nfs_writeverf {
499 struct nfs_write_verifier verifier;
500 enum nfs3_stable_how committed;
501 };
502
503 /*
504 * Arguments shared by the read and write call.
505 */
506 struct nfs_pgio_args {
507 struct nfs4_sequence_args seq_args;
508 struct nfs_fh * fh;
509 struct nfs_open_context *context;
510 struct nfs_lock_context *lock_context;
511 nfs4_stateid stateid;
512 __u64 offset;
513 __u32 count;
514 unsigned int pgbase;
515 struct page ** pages;
516 const u32 * bitmask; /* used by write */
517 enum nfs3_stable_how stable; /* used by write */
518 };
519
520 struct nfs_pgio_res {
521 struct nfs4_sequence_res seq_res;
522 struct nfs_fattr * fattr;
523 __u32 count;
524 __u32 op_status;
525 int eof; /* used by read */
526 struct nfs_writeverf * verf; /* used by write */
527 const struct nfs_server *server; /* used by write */
528
529 };
530
531 /*
532 * Arguments to the commit call.
533 */
534 struct nfs_commitargs {
535 struct nfs4_sequence_args seq_args;
536 struct nfs_fh *fh;
537 __u64 offset;
538 __u32 count;
539 const u32 *bitmask;
540 };
541
542 struct nfs_commitres {
543 struct nfs4_sequence_res seq_res;
544 __u32 op_status;
545 struct nfs_fattr *fattr;
546 struct nfs_writeverf *verf;
547 const struct nfs_server *server;
548 };
549
550 /*
551 * Common arguments to the unlink call
552 */
553 struct nfs_removeargs {
554 struct nfs4_sequence_args seq_args;
555 const struct nfs_fh *fh;
556 struct qstr name;
557 };
558
559 struct nfs_removeres {
560 struct nfs4_sequence_res seq_res;
561 const struct nfs_server *server;
562 struct nfs_fattr *dir_attr;
563 struct nfs4_change_info cinfo;
564 };
565
566 /*
567 * Common arguments to the rename call
568 */
569 struct nfs_renameargs {
570 struct nfs4_sequence_args seq_args;
571 const struct nfs_fh *old_dir;
572 const struct nfs_fh *new_dir;
573 const struct qstr *old_name;
574 const struct qstr *new_name;
575 };
576
577 struct nfs_renameres {
578 struct nfs4_sequence_res seq_res;
579 const struct nfs_server *server;
580 struct nfs4_change_info old_cinfo;
581 struct nfs_fattr *old_fattr;
582 struct nfs4_change_info new_cinfo;
583 struct nfs_fattr *new_fattr;
584 };
585
586 /* parsed sec= options */
587 #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */
588 struct nfs_auth_info {
589 unsigned int flavor_len;
590 rpc_authflavor_t flavors[NFS_AUTH_INFO_MAX_FLAVORS];
591 };
592
593 /*
594 * Argument struct for decode_entry function
595 */
596 struct nfs_entry {
597 __u64 ino;
598 __u64 cookie,
599 prev_cookie;
600 const char * name;
601 unsigned int len;
602 int eof;
603 struct nfs_fh * fh;
604 struct nfs_fattr * fattr;
605 struct nfs4_label *label;
606 unsigned char d_type;
607 struct nfs_server * server;
608 };
609
610 /*
611 * The following types are for NFSv2 only.
612 */
613 struct nfs_sattrargs {
614 struct nfs_fh * fh;
615 struct iattr * sattr;
616 };
617
618 struct nfs_diropargs {
619 struct nfs_fh * fh;
620 const char * name;
621 unsigned int len;
622 };
623
624 struct nfs_createargs {
625 struct nfs_fh * fh;
626 const char * name;
627 unsigned int len;
628 struct iattr * sattr;
629 };
630
631 struct nfs_setattrargs {
632 struct nfs4_sequence_args seq_args;
633 struct nfs_fh * fh;
634 nfs4_stateid stateid;
635 struct iattr * iap;
636 const struct nfs_server * server; /* Needed for name mapping */
637 const u32 * bitmask;
638 const struct nfs4_label *label;
639 };
640
641 struct nfs_setaclargs {
642 struct nfs4_sequence_args seq_args;
643 struct nfs_fh * fh;
644 size_t acl_len;
645 unsigned int acl_pgbase;
646 struct page ** acl_pages;
647 };
648
649 struct nfs_setaclres {
650 struct nfs4_sequence_res seq_res;
651 };
652
653 struct nfs_getaclargs {
654 struct nfs4_sequence_args seq_args;
655 struct nfs_fh * fh;
656 size_t acl_len;
657 unsigned int acl_pgbase;
658 struct page ** acl_pages;
659 };
660
661 /* getxattr ACL interface flags */
662 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
663 struct nfs_getaclres {
664 struct nfs4_sequence_res seq_res;
665 size_t acl_len;
666 size_t acl_data_offset;
667 int acl_flags;
668 struct page * acl_scratch;
669 };
670
671 struct nfs_setattrres {
672 struct nfs4_sequence_res seq_res;
673 struct nfs_fattr * fattr;
674 struct nfs4_label *label;
675 const struct nfs_server * server;
676 };
677
678 struct nfs_linkargs {
679 struct nfs_fh * fromfh;
680 struct nfs_fh * tofh;
681 const char * toname;
682 unsigned int tolen;
683 };
684
685 struct nfs_symlinkargs {
686 struct nfs_fh * fromfh;
687 const char * fromname;
688 unsigned int fromlen;
689 struct page ** pages;
690 unsigned int pathlen;
691 struct iattr * sattr;
692 };
693
694 struct nfs_readdirargs {
695 struct nfs_fh * fh;
696 __u32 cookie;
697 unsigned int count;
698 struct page ** pages;
699 };
700
701 struct nfs3_getaclargs {
702 struct nfs_fh * fh;
703 int mask;
704 struct page ** pages;
705 };
706
707 struct nfs3_setaclargs {
708 struct inode * inode;
709 int mask;
710 struct posix_acl * acl_access;
711 struct posix_acl * acl_default;
712 size_t len;
713 unsigned int npages;
714 struct page ** pages;
715 };
716
717 struct nfs_diropok {
718 struct nfs_fh * fh;
719 struct nfs_fattr * fattr;
720 };
721
722 struct nfs_readlinkargs {
723 struct nfs_fh * fh;
724 unsigned int pgbase;
725 unsigned int pglen;
726 struct page ** pages;
727 };
728
729 struct nfs3_sattrargs {
730 struct nfs_fh * fh;
731 struct iattr * sattr;
732 unsigned int guard;
733 struct timespec guardtime;
734 };
735
736 struct nfs3_diropargs {
737 struct nfs_fh * fh;
738 const char * name;
739 unsigned int len;
740 };
741
742 struct nfs3_accessargs {
743 struct nfs_fh * fh;
744 __u32 access;
745 };
746
747 struct nfs3_createargs {
748 struct nfs_fh * fh;
749 const char * name;
750 unsigned int len;
751 struct iattr * sattr;
752 enum nfs3_createmode createmode;
753 __be32 verifier[2];
754 };
755
756 struct nfs3_mkdirargs {
757 struct nfs_fh * fh;
758 const char * name;
759 unsigned int len;
760 struct iattr * sattr;
761 };
762
763 struct nfs3_symlinkargs {
764 struct nfs_fh * fromfh;
765 const char * fromname;
766 unsigned int fromlen;
767 struct page ** pages;
768 unsigned int pathlen;
769 struct iattr * sattr;
770 };
771
772 struct nfs3_mknodargs {
773 struct nfs_fh * fh;
774 const char * name;
775 unsigned int len;
776 enum nfs3_ftype type;
777 struct iattr * sattr;
778 dev_t rdev;
779 };
780
781 struct nfs3_linkargs {
782 struct nfs_fh * fromfh;
783 struct nfs_fh * tofh;
784 const char * toname;
785 unsigned int tolen;
786 };
787
788 struct nfs3_readdirargs {
789 struct nfs_fh * fh;
790 __u64 cookie;
791 __be32 verf[2];
792 int plus;
793 unsigned int count;
794 struct page ** pages;
795 };
796
797 struct nfs3_diropres {
798 struct nfs_fattr * dir_attr;
799 struct nfs_fh * fh;
800 struct nfs_fattr * fattr;
801 };
802
803 struct nfs3_accessres {
804 struct nfs_fattr * fattr;
805 __u32 access;
806 };
807
808 struct nfs3_readlinkargs {
809 struct nfs_fh * fh;
810 unsigned int pgbase;
811 unsigned int pglen;
812 struct page ** pages;
813 };
814
815 struct nfs3_linkres {
816 struct nfs_fattr * dir_attr;
817 struct nfs_fattr * fattr;
818 };
819
820 struct nfs3_readdirres {
821 struct nfs_fattr * dir_attr;
822 __be32 * verf;
823 int plus;
824 };
825
826 struct nfs3_getaclres {
827 struct nfs_fattr * fattr;
828 int mask;
829 unsigned int acl_access_count;
830 unsigned int acl_default_count;
831 struct posix_acl * acl_access;
832 struct posix_acl * acl_default;
833 };
834
835 #if IS_ENABLED(CONFIG_NFS_V4)
836
837 typedef u64 clientid4;
838
839 struct nfs4_accessargs {
840 struct nfs4_sequence_args seq_args;
841 const struct nfs_fh * fh;
842 const u32 * bitmask;
843 u32 access;
844 };
845
846 struct nfs4_accessres {
847 struct nfs4_sequence_res seq_res;
848 const struct nfs_server * server;
849 struct nfs_fattr * fattr;
850 u32 supported;
851 u32 access;
852 };
853
854 struct nfs4_create_arg {
855 struct nfs4_sequence_args seq_args;
856 u32 ftype;
857 union {
858 struct {
859 struct page ** pages;
860 unsigned int len;
861 } symlink; /* NF4LNK */
862 struct {
863 u32 specdata1;
864 u32 specdata2;
865 } device; /* NF4BLK, NF4CHR */
866 } u;
867 const struct qstr * name;
868 const struct nfs_server * server;
869 const struct iattr * attrs;
870 const struct nfs_fh * dir_fh;
871 const u32 * bitmask;
872 const struct nfs4_label *label;
873 };
874
875 struct nfs4_create_res {
876 struct nfs4_sequence_res seq_res;
877 const struct nfs_server * server;
878 struct nfs_fh * fh;
879 struct nfs_fattr * fattr;
880 struct nfs4_label *label;
881 struct nfs4_change_info dir_cinfo;
882 };
883
884 struct nfs4_fsinfo_arg {
885 struct nfs4_sequence_args seq_args;
886 const struct nfs_fh * fh;
887 const u32 * bitmask;
888 };
889
890 struct nfs4_fsinfo_res {
891 struct nfs4_sequence_res seq_res;
892 struct nfs_fsinfo *fsinfo;
893 };
894
895 struct nfs4_getattr_arg {
896 struct nfs4_sequence_args seq_args;
897 const struct nfs_fh * fh;
898 const u32 * bitmask;
899 };
900
901 struct nfs4_getattr_res {
902 struct nfs4_sequence_res seq_res;
903 const struct nfs_server * server;
904 struct nfs_fattr * fattr;
905 struct nfs4_label *label;
906 };
907
908 struct nfs4_link_arg {
909 struct nfs4_sequence_args seq_args;
910 const struct nfs_fh * fh;
911 const struct nfs_fh * dir_fh;
912 const struct qstr * name;
913 const u32 * bitmask;
914 };
915
916 struct nfs4_link_res {
917 struct nfs4_sequence_res seq_res;
918 const struct nfs_server * server;
919 struct nfs_fattr * fattr;
920 struct nfs4_label *label;
921 struct nfs4_change_info cinfo;
922 struct nfs_fattr * dir_attr;
923 };
924
925
926 struct nfs4_lookup_arg {
927 struct nfs4_sequence_args seq_args;
928 const struct nfs_fh * dir_fh;
929 const struct qstr * name;
930 const u32 * bitmask;
931 };
932
933 struct nfs4_lookup_res {
934 struct nfs4_sequence_res seq_res;
935 const struct nfs_server * server;
936 struct nfs_fattr * fattr;
937 struct nfs_fh * fh;
938 struct nfs4_label *label;
939 };
940
941 struct nfs4_lookup_root_arg {
942 struct nfs4_sequence_args seq_args;
943 const u32 * bitmask;
944 };
945
946 struct nfs4_pathconf_arg {
947 struct nfs4_sequence_args seq_args;
948 const struct nfs_fh * fh;
949 const u32 * bitmask;
950 };
951
952 struct nfs4_pathconf_res {
953 struct nfs4_sequence_res seq_res;
954 struct nfs_pathconf *pathconf;
955 };
956
957 struct nfs4_readdir_arg {
958 struct nfs4_sequence_args seq_args;
959 const struct nfs_fh * fh;
960 u64 cookie;
961 nfs4_verifier verifier;
962 u32 count;
963 struct page ** pages; /* zero-copy data */
964 unsigned int pgbase; /* zero-copy data */
965 const u32 * bitmask;
966 int plus;
967 };
968
969 struct nfs4_readdir_res {
970 struct nfs4_sequence_res seq_res;
971 nfs4_verifier verifier;
972 unsigned int pgbase;
973 };
974
975 struct nfs4_readlink {
976 struct nfs4_sequence_args seq_args;
977 const struct nfs_fh * fh;
978 unsigned int pgbase;
979 unsigned int pglen; /* zero-copy data */
980 struct page ** pages; /* zero-copy data */
981 };
982
983 struct nfs4_readlink_res {
984 struct nfs4_sequence_res seq_res;
985 };
986
987 #define NFS4_SETCLIENTID_NAMELEN (127)
988 struct nfs4_setclientid {
989 const nfs4_verifier * sc_verifier;
990 unsigned int sc_name_len;
991 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
992 u32 sc_prog;
993 unsigned int sc_netid_len;
994 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
995 unsigned int sc_uaddr_len;
996 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
997 u32 sc_cb_ident;
998 struct rpc_cred *sc_cred;
999 };
1000
1001 struct nfs4_setclientid_res {
1002 u64 clientid;
1003 nfs4_verifier confirm;
1004 };
1005
1006 struct nfs4_statfs_arg {
1007 struct nfs4_sequence_args seq_args;
1008 const struct nfs_fh * fh;
1009 const u32 * bitmask;
1010 };
1011
1012 struct nfs4_statfs_res {
1013 struct nfs4_sequence_res seq_res;
1014 struct nfs_fsstat *fsstat;
1015 };
1016
1017 struct nfs4_server_caps_arg {
1018 struct nfs4_sequence_args seq_args;
1019 struct nfs_fh *fhandle;
1020 };
1021
1022 struct nfs4_server_caps_res {
1023 struct nfs4_sequence_res seq_res;
1024 u32 attr_bitmask[3];
1025 u32 acl_bitmask;
1026 u32 has_links;
1027 u32 has_symlinks;
1028 u32 fh_expire_type;
1029 };
1030
1031 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1032 struct nfs4_pathname {
1033 unsigned int ncomponents;
1034 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
1035 };
1036
1037 #define NFS4_FS_LOCATION_MAXSERVERS 10
1038 struct nfs4_fs_location {
1039 unsigned int nservers;
1040 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
1041 struct nfs4_pathname rootpath;
1042 };
1043
1044 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1045 struct nfs4_fs_locations {
1046 struct nfs_fattr fattr;
1047 const struct nfs_server *server;
1048 struct nfs4_pathname fs_path;
1049 int nlocations;
1050 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
1051 };
1052
1053 struct nfs4_fs_locations_arg {
1054 struct nfs4_sequence_args seq_args;
1055 const struct nfs_fh *dir_fh;
1056 const struct nfs_fh *fh;
1057 const struct qstr *name;
1058 struct page *page;
1059 const u32 *bitmask;
1060 clientid4 clientid;
1061 unsigned char migration:1, renew:1;
1062 };
1063
1064 struct nfs4_fs_locations_res {
1065 struct nfs4_sequence_res seq_res;
1066 struct nfs4_fs_locations *fs_locations;
1067 unsigned char migration:1, renew:1;
1068 };
1069
1070 struct nfs4_secinfo4 {
1071 u32 flavor;
1072 struct rpcsec_gss_info flavor_info;
1073 };
1074
1075 struct nfs4_secinfo_flavors {
1076 unsigned int num_flavors;
1077 struct nfs4_secinfo4 flavors[0];
1078 };
1079
1080 struct nfs4_secinfo_arg {
1081 struct nfs4_sequence_args seq_args;
1082 const struct nfs_fh *dir_fh;
1083 const struct qstr *name;
1084 };
1085
1086 struct nfs4_secinfo_res {
1087 struct nfs4_sequence_res seq_res;
1088 struct nfs4_secinfo_flavors *flavors;
1089 };
1090
1091 struct nfs4_fsid_present_arg {
1092 struct nfs4_sequence_args seq_args;
1093 const struct nfs_fh *fh;
1094 clientid4 clientid;
1095 unsigned char renew:1;
1096 };
1097
1098 struct nfs4_fsid_present_res {
1099 struct nfs4_sequence_res seq_res;
1100 struct nfs_fh *fh;
1101 unsigned char renew:1;
1102 };
1103
1104 #endif /* CONFIG_NFS_V4 */
1105
1106 struct nfstime4 {
1107 u64 seconds;
1108 u32 nseconds;
1109 };
1110
1111 #ifdef CONFIG_NFS_V4_1
1112
1113 struct pnfs_commit_bucket {
1114 struct list_head written;
1115 struct list_head committing;
1116 struct pnfs_layout_segment *wlseg;
1117 struct pnfs_layout_segment *clseg;
1118 struct nfs_writeverf direct_verf;
1119 };
1120
1121 struct pnfs_ds_commit_info {
1122 int nwritten;
1123 int ncommitting;
1124 int nbuckets;
1125 struct pnfs_commit_bucket *buckets;
1126 };
1127
1128 #define NFS4_OP_MAP_NUM_LONGS \
1129 DIV_ROUND_UP(LAST_NFS4_OP, 8 * sizeof(unsigned long))
1130 #define NFS4_OP_MAP_NUM_WORDS \
1131 (NFS4_OP_MAP_NUM_LONGS * sizeof(unsigned long) / sizeof(u32))
1132 struct nfs4_op_map {
1133 union {
1134 unsigned long longs[NFS4_OP_MAP_NUM_LONGS];
1135 u32 words[NFS4_OP_MAP_NUM_WORDS];
1136 } u;
1137 };
1138
1139 struct nfs41_state_protection {
1140 u32 how;
1141 struct nfs4_op_map enforce;
1142 struct nfs4_op_map allow;
1143 };
1144
1145 #define NFS4_EXCHANGE_ID_LEN (127)
1146 struct nfs41_exchange_id_args {
1147 struct nfs_client *client;
1148 nfs4_verifier *verifier;
1149 unsigned int id_len;
1150 char id[NFS4_EXCHANGE_ID_LEN];
1151 u32 flags;
1152 struct nfs41_state_protection state_protect;
1153 };
1154
1155 struct nfs41_server_owner {
1156 uint64_t minor_id;
1157 uint32_t major_id_sz;
1158 char major_id[NFS4_OPAQUE_LIMIT];
1159 };
1160
1161 struct nfs41_server_scope {
1162 uint32_t server_scope_sz;
1163 char server_scope[NFS4_OPAQUE_LIMIT];
1164 };
1165
1166 struct nfs41_impl_id {
1167 char domain[NFS4_OPAQUE_LIMIT + 1];
1168 char name[NFS4_OPAQUE_LIMIT + 1];
1169 struct nfstime4 date;
1170 };
1171
1172 struct nfs41_bind_conn_to_session_args {
1173 struct nfs_client *client;
1174 struct nfs4_sessionid sessionid;
1175 u32 dir;
1176 bool use_conn_in_rdma_mode;
1177 };
1178
1179 struct nfs41_bind_conn_to_session_res {
1180 struct nfs4_sessionid sessionid;
1181 u32 dir;
1182 bool use_conn_in_rdma_mode;
1183 };
1184
1185 struct nfs41_exchange_id_res {
1186 u64 clientid;
1187 u32 seqid;
1188 u32 flags;
1189 struct nfs41_server_owner *server_owner;
1190 struct nfs41_server_scope *server_scope;
1191 struct nfs41_impl_id *impl_id;
1192 struct nfs41_state_protection state_protect;
1193 };
1194
1195 struct nfs41_create_session_args {
1196 struct nfs_client *client;
1197 u64 clientid;
1198 uint32_t seqid;
1199 uint32_t flags;
1200 uint32_t cb_program;
1201 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1202 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1203 };
1204
1205 struct nfs41_create_session_res {
1206 struct nfs4_sessionid sessionid;
1207 uint32_t seqid;
1208 uint32_t flags;
1209 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1210 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1211 };
1212
1213 struct nfs41_reclaim_complete_args {
1214 struct nfs4_sequence_args seq_args;
1215 /* In the future extend to include curr_fh for use with migration */
1216 unsigned char one_fs:1;
1217 };
1218
1219 struct nfs41_reclaim_complete_res {
1220 struct nfs4_sequence_res seq_res;
1221 };
1222
1223 #define SECINFO_STYLE_CURRENT_FH 0
1224 #define SECINFO_STYLE_PARENT 1
1225 struct nfs41_secinfo_no_name_args {
1226 struct nfs4_sequence_args seq_args;
1227 int style;
1228 };
1229
1230 struct nfs41_test_stateid_args {
1231 struct nfs4_sequence_args seq_args;
1232 nfs4_stateid *stateid;
1233 };
1234
1235 struct nfs41_test_stateid_res {
1236 struct nfs4_sequence_res seq_res;
1237 unsigned int status;
1238 };
1239
1240 struct nfs41_free_stateid_args {
1241 struct nfs4_sequence_args seq_args;
1242 nfs4_stateid stateid;
1243 };
1244
1245 struct nfs41_free_stateid_res {
1246 struct nfs4_sequence_res seq_res;
1247 unsigned int status;
1248 };
1249
1250 static inline void
nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info * cinfo)1251 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
1252 {
1253 kfree(cinfo->buckets);
1254 }
1255
1256 #else
1257
1258 struct pnfs_ds_commit_info {
1259 };
1260
1261 static inline void
nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info * cinfo)1262 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
1263 {
1264 }
1265
1266 #endif /* CONFIG_NFS_V4_1 */
1267
1268 #ifdef CONFIG_NFS_V4_2
1269 struct nfs42_falloc_args {
1270 struct nfs4_sequence_args seq_args;
1271
1272 struct nfs_fh *falloc_fh;
1273 nfs4_stateid falloc_stateid;
1274 u64 falloc_offset;
1275 u64 falloc_length;
1276 const u32 *falloc_bitmask;
1277 };
1278
1279 struct nfs42_falloc_res {
1280 struct nfs4_sequence_res seq_res;
1281 unsigned int status;
1282
1283 struct nfs_fattr *falloc_fattr;
1284 const struct nfs_server *falloc_server;
1285 };
1286
1287 struct nfs42_seek_args {
1288 struct nfs4_sequence_args seq_args;
1289
1290 struct nfs_fh *sa_fh;
1291 nfs4_stateid sa_stateid;
1292 u64 sa_offset;
1293 u32 sa_what;
1294 };
1295
1296 struct nfs42_seek_res {
1297 struct nfs4_sequence_res seq_res;
1298 unsigned int status;
1299
1300 u32 sr_eof;
1301 u64 sr_offset;
1302 };
1303 #endif
1304
1305 struct nfs_page;
1306
1307 #define NFS_PAGEVEC_SIZE (8U)
1308
1309 struct nfs_page_array {
1310 struct page **pagevec;
1311 unsigned int npages; /* Max length of pagevec */
1312 struct page *page_array[NFS_PAGEVEC_SIZE];
1313 };
1314
1315 /* used as flag bits in nfs_pgio_header */
1316 enum {
1317 NFS_IOHDR_ERROR = 0,
1318 NFS_IOHDR_EOF,
1319 NFS_IOHDR_REDO,
1320 };
1321
1322 struct nfs_pgio_header {
1323 struct inode *inode;
1324 struct rpc_cred *cred;
1325 struct list_head pages;
1326 struct nfs_page *req;
1327 struct nfs_writeverf verf; /* Used for writes */
1328 struct pnfs_layout_segment *lseg;
1329 loff_t io_start;
1330 const struct rpc_call_ops *mds_ops;
1331 void (*release) (struct nfs_pgio_header *hdr);
1332 const struct nfs_pgio_completion_ops *completion_ops;
1333 const struct nfs_rw_ops *rw_ops;
1334 struct nfs_direct_req *dreq;
1335 void *layout_private;
1336 spinlock_t lock;
1337 /* fields protected by lock */
1338 int pnfs_error;
1339 int error; /* merge with pnfs_error */
1340 unsigned long good_bytes; /* boundary of good data */
1341 unsigned long flags;
1342
1343 /*
1344 * rpc data
1345 */
1346 struct rpc_task task;
1347 struct nfs_fattr fattr;
1348 struct nfs_pgio_args args; /* argument struct */
1349 struct nfs_pgio_res res; /* result struct */
1350 unsigned long timestamp; /* For lease renewal */
1351 int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *);
1352 __u64 mds_offset; /* Filelayout dense stripe */
1353 struct nfs_page_array page_array;
1354 struct nfs_client *ds_clp; /* pNFS data server */
1355 int ds_commit_idx; /* ds index if ds_clp is set */
1356 int pgio_mirror_idx;/* mirror index in pgio layer */
1357 };
1358
1359 struct nfs_mds_commit_info {
1360 atomic_t rpcs_out;
1361 unsigned long ncommit;
1362 struct list_head list;
1363 };
1364
1365 struct nfs_commit_data;
1366 struct nfs_inode;
1367 struct nfs_commit_completion_ops {
1368 void (*error_cleanup) (struct nfs_inode *nfsi);
1369 void (*completion) (struct nfs_commit_data *data);
1370 };
1371
1372 struct nfs_commit_info {
1373 spinlock_t *lock; /* inode->i_lock */
1374 struct nfs_mds_commit_info *mds;
1375 struct pnfs_ds_commit_info *ds;
1376 struct nfs_direct_req *dreq; /* O_DIRECT request */
1377 const struct nfs_commit_completion_ops *completion_ops;
1378 };
1379
1380 struct nfs_commit_data {
1381 struct rpc_task task;
1382 struct inode *inode;
1383 struct rpc_cred *cred;
1384 struct nfs_fattr fattr;
1385 struct nfs_writeverf verf;
1386 struct list_head pages; /* Coalesced requests we wish to flush */
1387 struct list_head list; /* lists of struct nfs_write_data */
1388 struct nfs_direct_req *dreq; /* O_DIRECT request */
1389 struct nfs_commitargs args; /* argument struct */
1390 struct nfs_commitres res; /* result struct */
1391 struct nfs_open_context *context;
1392 struct pnfs_layout_segment *lseg;
1393 struct nfs_client *ds_clp; /* pNFS data server */
1394 int ds_commit_index;
1395 loff_t lwb;
1396 const struct rpc_call_ops *mds_ops;
1397 const struct nfs_commit_completion_ops *completion_ops;
1398 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
1399 };
1400
1401 struct nfs_pgio_completion_ops {
1402 void (*error_cleanup)(struct list_head *head);
1403 void (*init_hdr)(struct nfs_pgio_header *hdr);
1404 void (*completion)(struct nfs_pgio_header *hdr);
1405 };
1406
1407 struct nfs_unlinkdata {
1408 struct hlist_node list;
1409 struct nfs_removeargs args;
1410 struct nfs_removeres res;
1411 struct inode *dir;
1412 struct rpc_cred *cred;
1413 struct nfs_fattr dir_attr;
1414 long timeout;
1415 };
1416
1417 struct nfs_renamedata {
1418 struct nfs_renameargs args;
1419 struct nfs_renameres res;
1420 struct rpc_cred *cred;
1421 struct inode *old_dir;
1422 struct dentry *old_dentry;
1423 struct nfs_fattr old_fattr;
1424 struct inode *new_dir;
1425 struct dentry *new_dentry;
1426 struct nfs_fattr new_fattr;
1427 void (*complete)(struct rpc_task *, struct nfs_renamedata *);
1428 long timeout;
1429 };
1430
1431 struct nfs_access_entry;
1432 struct nfs_client;
1433 struct rpc_timeout;
1434 struct nfs_subversion;
1435 struct nfs_mount_info;
1436 struct nfs_client_initdata;
1437 struct nfs_pageio_descriptor;
1438
1439 /*
1440 * RPC procedure vector for NFSv2/NFSv3 demuxing
1441 */
1442 struct nfs_rpc_ops {
1443 u32 version; /* Protocol version */
1444 const struct dentry_operations *dentry_ops;
1445 const struct inode_operations *dir_inode_ops;
1446 const struct inode_operations *file_inode_ops;
1447 const struct file_operations *file_ops;
1448
1449 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1450 struct nfs_fsinfo *);
1451 struct vfsmount *(*submount) (struct nfs_server *, struct dentry *,
1452 struct nfs_fh *, struct nfs_fattr *);
1453 struct dentry *(*try_mount) (int, const char *, struct nfs_mount_info *,
1454 struct nfs_subversion *);
1455 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1456 struct nfs_fattr *, struct nfs4_label *);
1457 int (*setattr) (struct dentry *, struct nfs_fattr *,
1458 struct iattr *);
1459 int (*lookup) (struct inode *, struct qstr *,
1460 struct nfs_fh *, struct nfs_fattr *,
1461 struct nfs4_label *);
1462 int (*access) (struct inode *, struct nfs_access_entry *);
1463 int (*readlink)(struct inode *, struct page *, unsigned int,
1464 unsigned int);
1465 int (*create) (struct inode *, struct dentry *,
1466 struct iattr *, int);
1467 int (*remove) (struct inode *, struct qstr *);
1468 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1469 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
1470 int (*unlink_done) (struct rpc_task *, struct inode *);
1471 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1472 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
1473 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1474 int (*link) (struct inode *, struct inode *, struct qstr *);
1475 int (*symlink) (struct inode *, struct dentry *, struct page *,
1476 unsigned int, struct iattr *);
1477 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1478 int (*rmdir) (struct inode *, struct qstr *);
1479 int (*readdir) (struct dentry *, struct rpc_cred *,
1480 u64, struct page **, unsigned int, int);
1481 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1482 dev_t);
1483 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1484 struct nfs_fsstat *);
1485 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1486 struct nfs_fsinfo *);
1487 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1488 struct nfs_pathconf *);
1489 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1490 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1491 int (*pgio_rpc_prepare)(struct rpc_task *,
1492 struct nfs_pgio_header *);
1493 void (*read_setup)(struct nfs_pgio_header *, struct rpc_message *);
1494 int (*read_done)(struct rpc_task *, struct nfs_pgio_header *);
1495 void (*write_setup)(struct nfs_pgio_header *, struct rpc_message *);
1496 int (*write_done)(struct rpc_task *, struct nfs_pgio_header *);
1497 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *);
1498 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
1499 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *);
1500 int (*lock)(struct file *, int, struct file_lock *);
1501 int (*lock_check_bounds)(const struct file_lock *);
1502 void (*clear_acl_cache)(struct inode *);
1503 void (*close_context)(struct nfs_open_context *ctx, int);
1504 struct inode * (*open_context) (struct inode *dir,
1505 struct nfs_open_context *ctx,
1506 int open_flags,
1507 struct iattr *iattr,
1508 int *);
1509 int (*have_delegation)(struct inode *, fmode_t);
1510 int (*return_delegation)(struct inode *);
1511 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *);
1512 struct nfs_client *
1513 (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1514 const char *);
1515 void (*free_client) (struct nfs_client *);
1516 struct nfs_server *(*create_server)(struct nfs_mount_info *, struct nfs_subversion *);
1517 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *,
1518 struct nfs_fattr *, rpc_authflavor_t);
1519 };
1520
1521 /*
1522 * NFS_CALL(getattr, inode, (fattr));
1523 * into
1524 * NFS_PROTO(inode)->getattr(fattr);
1525 */
1526 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1527
1528 /*
1529 * Function vectors etc. for the NFS client
1530 */
1531 extern const struct nfs_rpc_ops nfs_v2_clientops;
1532 extern const struct nfs_rpc_ops nfs_v3_clientops;
1533 extern const struct nfs_rpc_ops nfs_v4_clientops;
1534 extern const struct rpc_version nfs_version2;
1535 extern const struct rpc_version nfs_version3;
1536 extern const struct rpc_version nfs_version4;
1537
1538 extern const struct rpc_version nfsacl_version3;
1539 extern const struct rpc_program nfsacl_program;
1540
1541 #endif
1542