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 __u32 clone_blksize; /* granularity of a CLONE operation */
145 };
146
147 struct nfs_fsstat {
148 struct nfs_fattr *fattr; /* Post-op attributes */
149 __u64 tbytes; /* total size in bytes */
150 __u64 fbytes; /* # of free bytes */
151 __u64 abytes; /* # of bytes available to user */
152 __u64 tfiles; /* # of files */
153 __u64 ffiles; /* # of free files */
154 __u64 afiles; /* # of files available to user */
155 };
156
157 struct nfs2_fsstat {
158 __u32 tsize; /* Server transfer size */
159 __u32 bsize; /* Filesystem block size */
160 __u32 blocks; /* No. of "bsize" blocks on filesystem */
161 __u32 bfree; /* No. of free "bsize" blocks */
162 __u32 bavail; /* No. of available "bsize" blocks */
163 };
164
165 struct nfs_pathconf {
166 struct nfs_fattr *fattr; /* Post-op attributes */
167 __u32 max_link; /* max # of hard links */
168 __u32 max_namelen; /* max name length */
169 };
170
171 struct nfs4_change_info {
172 u32 atomic;
173 u64 before;
174 u64 after;
175 };
176
177 struct nfs_seqid;
178
179 /* nfs41 sessions channel attributes */
180 struct nfs4_channel_attrs {
181 u32 max_rqst_sz;
182 u32 max_resp_sz;
183 u32 max_resp_sz_cached;
184 u32 max_ops;
185 u32 max_reqs;
186 };
187
188 struct nfs4_slot;
189 struct nfs4_sequence_args {
190 struct nfs4_slot *sa_slot;
191 u8 sa_cache_this : 1,
192 sa_privileged : 1;
193 };
194
195 struct nfs4_sequence_res {
196 struct nfs4_slot *sr_slot; /* slot used to send request */
197 unsigned long sr_timestamp;
198 int sr_status; /* sequence operation status */
199 u32 sr_status_flags;
200 u32 sr_highest_slotid;
201 u32 sr_target_highest_slotid;
202 };
203
204 struct nfs4_get_lease_time_args {
205 struct nfs4_sequence_args la_seq_args;
206 };
207
208 struct nfs4_get_lease_time_res {
209 struct nfs4_sequence_res lr_seq_res;
210 struct nfs_fsinfo *lr_fsinfo;
211 };
212
213 #define PNFS_LAYOUT_MAXSIZE 4096
214
215 struct nfs4_layoutdriver_data {
216 struct page **pages;
217 __u32 pglen;
218 __u32 len;
219 };
220
221 struct pnfs_layout_range {
222 u32 iomode;
223 u64 offset;
224 u64 length;
225 };
226
227 struct nfs4_layoutget_args {
228 struct nfs4_sequence_args seq_args;
229 __u32 type;
230 struct pnfs_layout_range range;
231 __u64 minlength;
232 __u32 maxcount;
233 struct inode *inode;
234 struct nfs_open_context *ctx;
235 nfs4_stateid stateid;
236 unsigned long timestamp;
237 struct nfs4_layoutdriver_data layout;
238 };
239
240 struct nfs4_layoutget_res {
241 struct nfs4_sequence_res seq_res;
242 __u32 return_on_close;
243 struct pnfs_layout_range range;
244 __u32 type;
245 nfs4_stateid stateid;
246 struct nfs4_layoutdriver_data *layoutp;
247 };
248
249 struct nfs4_layoutget {
250 struct nfs4_layoutget_args args;
251 struct nfs4_layoutget_res res;
252 struct rpc_cred *cred;
253 gfp_t gfp_flags;
254 long timeout;
255 };
256
257 struct nfs4_getdeviceinfo_args {
258 struct nfs4_sequence_args seq_args;
259 struct pnfs_device *pdev;
260 __u32 notify_types;
261 };
262
263 struct nfs4_getdeviceinfo_res {
264 struct nfs4_sequence_res seq_res;
265 struct pnfs_device *pdev;
266 __u32 notification;
267 };
268
269 struct nfs4_layoutcommit_args {
270 struct nfs4_sequence_args seq_args;
271 nfs4_stateid stateid;
272 __u64 lastbytewritten;
273 struct inode *inode;
274 const u32 *bitmask;
275 size_t layoutupdate_len;
276 struct page *layoutupdate_page;
277 struct page **layoutupdate_pages;
278 };
279
280 struct nfs4_layoutcommit_res {
281 struct nfs4_sequence_res seq_res;
282 struct nfs_fattr *fattr;
283 const struct nfs_server *server;
284 int status;
285 };
286
287 struct nfs4_layoutcommit_data {
288 struct rpc_task task;
289 struct nfs_fattr fattr;
290 struct list_head lseg_list;
291 struct rpc_cred *cred;
292 struct inode *inode;
293 struct nfs4_layoutcommit_args args;
294 struct nfs4_layoutcommit_res res;
295 };
296
297 struct nfs4_layoutreturn_args {
298 struct nfs4_sequence_args seq_args;
299 struct pnfs_layout_hdr *layout;
300 struct inode *inode;
301 struct pnfs_layout_range range;
302 nfs4_stateid stateid;
303 __u32 layout_type;
304 };
305
306 struct nfs4_layoutreturn_res {
307 struct nfs4_sequence_res seq_res;
308 u32 lrs_present;
309 nfs4_stateid stateid;
310 };
311
312 struct nfs4_layoutreturn {
313 struct nfs4_layoutreturn_args args;
314 struct nfs4_layoutreturn_res res;
315 struct rpc_cred *cred;
316 struct nfs_client *clp;
317 struct inode *inode;
318 int rpc_status;
319 };
320
321 #define PNFS_LAYOUTSTATS_MAXSIZE 256
322
323 struct nfs42_layoutstat_args;
324 struct nfs42_layoutstat_devinfo;
325 typedef void (*layoutstats_encode_t)(struct xdr_stream *,
326 struct nfs42_layoutstat_args *,
327 struct nfs42_layoutstat_devinfo *);
328
329 /* Per file per deviceid layoutstats */
330 struct nfs42_layoutstat_devinfo {
331 struct nfs4_deviceid dev_id;
332 __u64 offset;
333 __u64 length;
334 __u64 read_count;
335 __u64 read_bytes;
336 __u64 write_count;
337 __u64 write_bytes;
338 __u32 layout_type;
339 layoutstats_encode_t layoutstats_encode;
340 void *layout_private;
341 };
342
343 struct nfs42_layoutstat_args {
344 struct nfs4_sequence_args seq_args;
345 struct nfs_fh *fh;
346 struct inode *inode;
347 nfs4_stateid stateid;
348 int num_dev;
349 struct nfs42_layoutstat_devinfo *devinfo;
350 };
351
352 struct nfs42_layoutstat_res {
353 struct nfs4_sequence_res seq_res;
354 int num_dev;
355 int rpc_status;
356 };
357
358 struct nfs42_layoutstat_data {
359 struct inode *inode;
360 struct nfs42_layoutstat_args args;
361 struct nfs42_layoutstat_res res;
362 };
363
364 struct nfs42_clone_args {
365 struct nfs4_sequence_args seq_args;
366 struct nfs_fh *src_fh;
367 struct nfs_fh *dst_fh;
368 nfs4_stateid src_stateid;
369 nfs4_stateid dst_stateid;
370 __u64 src_offset;
371 __u64 dst_offset;
372 __u64 count;
373 const u32 *dst_bitmask;
374 };
375
376 struct nfs42_clone_res {
377 struct nfs4_sequence_res seq_res;
378 unsigned int rpc_status;
379 struct nfs_fattr *dst_fattr;
380 const struct nfs_server *server;
381 };
382
383 struct stateowner_id {
384 __u64 create_time;
385 __u32 uniquifier;
386 };
387
388 /*
389 * Arguments to the open call.
390 */
391 struct nfs_openargs {
392 struct nfs4_sequence_args seq_args;
393 const struct nfs_fh * fh;
394 struct nfs_seqid * seqid;
395 int open_flags;
396 fmode_t fmode;
397 u32 share_access;
398 u32 access;
399 __u64 clientid;
400 struct stateowner_id id;
401 union {
402 struct {
403 struct iattr * attrs; /* UNCHECKED, GUARDED, EXCLUSIVE4_1 */
404 nfs4_verifier verifier; /* EXCLUSIVE */
405 };
406 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
407 fmode_t delegation_type; /* CLAIM_PREVIOUS */
408 } u;
409 const struct qstr * name;
410 const struct nfs_server *server; /* Needed for ID mapping */
411 const u32 * bitmask;
412 const u32 * open_bitmap;
413 enum open_claim_type4 claim;
414 enum createmode4 createmode;
415 const struct nfs4_label *label;
416 };
417
418 struct nfs_openres {
419 struct nfs4_sequence_res seq_res;
420 nfs4_stateid stateid;
421 struct nfs_fh fh;
422 struct nfs4_change_info cinfo;
423 __u32 rflags;
424 struct nfs_fattr * f_attr;
425 struct nfs4_label *f_label;
426 struct nfs_seqid * seqid;
427 const struct nfs_server *server;
428 fmode_t delegation_type;
429 nfs4_stateid delegation;
430 unsigned long pagemod_limit;
431 __u32 do_recall;
432 __u32 attrset[NFS4_BITMAP_SIZE];
433 struct nfs4_string *owner;
434 struct nfs4_string *group_owner;
435 __u32 access_request;
436 __u32 access_supported;
437 __u32 access_result;
438 };
439
440 /*
441 * Arguments to the open_confirm call.
442 */
443 struct nfs_open_confirmargs {
444 struct nfs4_sequence_args seq_args;
445 const struct nfs_fh * fh;
446 nfs4_stateid * stateid;
447 struct nfs_seqid * seqid;
448 };
449
450 struct nfs_open_confirmres {
451 struct nfs4_sequence_res seq_res;
452 nfs4_stateid stateid;
453 struct nfs_seqid * seqid;
454 };
455
456 /*
457 * Arguments to the close call.
458 */
459 struct nfs_closeargs {
460 struct nfs4_sequence_args seq_args;
461 struct nfs_fh * fh;
462 nfs4_stateid stateid;
463 struct nfs_seqid * seqid;
464 fmode_t fmode;
465 u32 share_access;
466 const u32 * bitmask;
467 };
468
469 struct nfs_closeres {
470 struct nfs4_sequence_res seq_res;
471 nfs4_stateid stateid;
472 struct nfs_fattr * fattr;
473 struct nfs_seqid * seqid;
474 const struct nfs_server *server;
475 };
476 /*
477 * * Arguments to the lock,lockt, and locku call.
478 * */
479 struct nfs_lowner {
480 __u64 clientid;
481 __u64 id;
482 dev_t s_dev;
483 };
484
485 struct nfs_lock_args {
486 struct nfs4_sequence_args seq_args;
487 struct nfs_fh * fh;
488 struct file_lock * fl;
489 struct nfs_seqid * lock_seqid;
490 nfs4_stateid lock_stateid;
491 struct nfs_seqid * open_seqid;
492 nfs4_stateid open_stateid;
493 struct nfs_lowner lock_owner;
494 unsigned char block : 1;
495 unsigned char reclaim : 1;
496 unsigned char new_lock : 1;
497 unsigned char new_lock_owner : 1;
498 };
499
500 struct nfs_lock_res {
501 struct nfs4_sequence_res seq_res;
502 nfs4_stateid stateid;
503 struct nfs_seqid * lock_seqid;
504 struct nfs_seqid * open_seqid;
505 };
506
507 struct nfs_locku_args {
508 struct nfs4_sequence_args seq_args;
509 struct nfs_fh * fh;
510 struct file_lock * fl;
511 struct nfs_seqid * seqid;
512 nfs4_stateid stateid;
513 };
514
515 struct nfs_locku_res {
516 struct nfs4_sequence_res seq_res;
517 nfs4_stateid stateid;
518 struct nfs_seqid * seqid;
519 };
520
521 struct nfs_lockt_args {
522 struct nfs4_sequence_args seq_args;
523 struct nfs_fh * fh;
524 struct file_lock * fl;
525 struct nfs_lowner lock_owner;
526 };
527
528 struct nfs_lockt_res {
529 struct nfs4_sequence_res seq_res;
530 struct file_lock * denied; /* LOCK, LOCKT failed */
531 };
532
533 struct nfs_release_lockowner_args {
534 struct nfs4_sequence_args seq_args;
535 struct nfs_lowner lock_owner;
536 };
537
538 struct nfs_release_lockowner_res {
539 struct nfs4_sequence_res seq_res;
540 };
541
542 struct nfs4_delegreturnargs {
543 struct nfs4_sequence_args seq_args;
544 const struct nfs_fh *fhandle;
545 const nfs4_stateid *stateid;
546 const u32 * bitmask;
547 };
548
549 struct nfs4_delegreturnres {
550 struct nfs4_sequence_res seq_res;
551 struct nfs_fattr * fattr;
552 struct nfs_server *server;
553 };
554
555 /*
556 * Arguments to the write call.
557 */
558 struct nfs_write_verifier {
559 char data[8];
560 };
561
562 struct nfs_writeverf {
563 struct nfs_write_verifier verifier;
564 enum nfs3_stable_how committed;
565 };
566
567 /*
568 * Arguments shared by the read and write call.
569 */
570 struct nfs_pgio_args {
571 struct nfs4_sequence_args seq_args;
572 struct nfs_fh * fh;
573 struct nfs_open_context *context;
574 struct nfs_lock_context *lock_context;
575 nfs4_stateid stateid;
576 __u64 offset;
577 __u32 count;
578 unsigned int pgbase;
579 struct page ** pages;
580 const u32 * bitmask; /* used by write */
581 enum nfs3_stable_how stable; /* used by write */
582 };
583
584 struct nfs_pgio_res {
585 struct nfs4_sequence_res seq_res;
586 struct nfs_fattr * fattr;
587 __u32 count;
588 __u32 op_status;
589 int eof; /* used by read */
590 struct nfs_writeverf * verf; /* used by write */
591 const struct nfs_server *server; /* used by write */
592
593 };
594
595 /*
596 * Arguments to the commit call.
597 */
598 struct nfs_commitargs {
599 struct nfs4_sequence_args seq_args;
600 struct nfs_fh *fh;
601 __u64 offset;
602 __u32 count;
603 const u32 *bitmask;
604 };
605
606 struct nfs_commitres {
607 struct nfs4_sequence_res seq_res;
608 __u32 op_status;
609 struct nfs_fattr *fattr;
610 struct nfs_writeverf *verf;
611 const struct nfs_server *server;
612 };
613
614 /*
615 * Common arguments to the unlink call
616 */
617 struct nfs_removeargs {
618 struct nfs4_sequence_args seq_args;
619 const struct nfs_fh *fh;
620 struct qstr name;
621 };
622
623 struct nfs_removeres {
624 struct nfs4_sequence_res seq_res;
625 struct nfs_server *server;
626 struct nfs_fattr *dir_attr;
627 struct nfs4_change_info cinfo;
628 };
629
630 /*
631 * Common arguments to the rename call
632 */
633 struct nfs_renameargs {
634 struct nfs4_sequence_args seq_args;
635 const struct nfs_fh *old_dir;
636 const struct nfs_fh *new_dir;
637 const struct qstr *old_name;
638 const struct qstr *new_name;
639 };
640
641 struct nfs_renameres {
642 struct nfs4_sequence_res seq_res;
643 struct nfs_server *server;
644 struct nfs4_change_info old_cinfo;
645 struct nfs_fattr *old_fattr;
646 struct nfs4_change_info new_cinfo;
647 struct nfs_fattr *new_fattr;
648 };
649
650 /* parsed sec= options */
651 #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */
652 struct nfs_auth_info {
653 unsigned int flavor_len;
654 rpc_authflavor_t flavors[NFS_AUTH_INFO_MAX_FLAVORS];
655 };
656
657 /*
658 * Argument struct for decode_entry function
659 */
660 struct nfs_entry {
661 __u64 ino;
662 __u64 cookie,
663 prev_cookie;
664 const char * name;
665 unsigned int len;
666 int eof;
667 struct nfs_fh * fh;
668 struct nfs_fattr * fattr;
669 struct nfs4_label *label;
670 unsigned char d_type;
671 struct nfs_server * server;
672 };
673
674 /*
675 * The following types are for NFSv2 only.
676 */
677 struct nfs_sattrargs {
678 struct nfs_fh * fh;
679 struct iattr * sattr;
680 };
681
682 struct nfs_diropargs {
683 struct nfs_fh * fh;
684 const char * name;
685 unsigned int len;
686 };
687
688 struct nfs_createargs {
689 struct nfs_fh * fh;
690 const char * name;
691 unsigned int len;
692 struct iattr * sattr;
693 };
694
695 struct nfs_setattrargs {
696 struct nfs4_sequence_args seq_args;
697 struct nfs_fh * fh;
698 nfs4_stateid stateid;
699 struct iattr * iap;
700 const struct nfs_server * server; /* Needed for name mapping */
701 const u32 * bitmask;
702 const struct nfs4_label *label;
703 };
704
705 struct nfs_setaclargs {
706 struct nfs4_sequence_args seq_args;
707 struct nfs_fh * fh;
708 size_t acl_len;
709 struct page ** acl_pages;
710 };
711
712 struct nfs_setaclres {
713 struct nfs4_sequence_res seq_res;
714 };
715
716 struct nfs_getaclargs {
717 struct nfs4_sequence_args seq_args;
718 struct nfs_fh * fh;
719 size_t acl_len;
720 struct page ** acl_pages;
721 };
722
723 /* getxattr ACL interface flags */
724 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
725 struct nfs_getaclres {
726 struct nfs4_sequence_res seq_res;
727 size_t acl_len;
728 size_t acl_data_offset;
729 int acl_flags;
730 struct page * acl_scratch;
731 };
732
733 struct nfs_setattrres {
734 struct nfs4_sequence_res seq_res;
735 struct nfs_fattr * fattr;
736 struct nfs4_label *label;
737 const struct nfs_server * server;
738 };
739
740 struct nfs_linkargs {
741 struct nfs_fh * fromfh;
742 struct nfs_fh * tofh;
743 const char * toname;
744 unsigned int tolen;
745 };
746
747 struct nfs_symlinkargs {
748 struct nfs_fh * fromfh;
749 const char * fromname;
750 unsigned int fromlen;
751 struct page ** pages;
752 unsigned int pathlen;
753 struct iattr * sattr;
754 };
755
756 struct nfs_readdirargs {
757 struct nfs_fh * fh;
758 __u32 cookie;
759 unsigned int count;
760 struct page ** pages;
761 };
762
763 struct nfs3_getaclargs {
764 struct nfs_fh * fh;
765 int mask;
766 struct page ** pages;
767 };
768
769 struct nfs3_setaclargs {
770 struct inode * inode;
771 int mask;
772 struct posix_acl * acl_access;
773 struct posix_acl * acl_default;
774 size_t len;
775 unsigned int npages;
776 struct page ** pages;
777 };
778
779 struct nfs_diropok {
780 struct nfs_fh * fh;
781 struct nfs_fattr * fattr;
782 };
783
784 struct nfs_readlinkargs {
785 struct nfs_fh * fh;
786 unsigned int pgbase;
787 unsigned int pglen;
788 struct page ** pages;
789 };
790
791 struct nfs3_sattrargs {
792 struct nfs_fh * fh;
793 struct iattr * sattr;
794 unsigned int guard;
795 struct timespec guardtime;
796 };
797
798 struct nfs3_diropargs {
799 struct nfs_fh * fh;
800 const char * name;
801 unsigned int len;
802 };
803
804 struct nfs3_accessargs {
805 struct nfs_fh * fh;
806 __u32 access;
807 };
808
809 struct nfs3_createargs {
810 struct nfs_fh * fh;
811 const char * name;
812 unsigned int len;
813 struct iattr * sattr;
814 enum nfs3_createmode createmode;
815 __be32 verifier[2];
816 };
817
818 struct nfs3_mkdirargs {
819 struct nfs_fh * fh;
820 const char * name;
821 unsigned int len;
822 struct iattr * sattr;
823 };
824
825 struct nfs3_symlinkargs {
826 struct nfs_fh * fromfh;
827 const char * fromname;
828 unsigned int fromlen;
829 struct page ** pages;
830 unsigned int pathlen;
831 struct iattr * sattr;
832 };
833
834 struct nfs3_mknodargs {
835 struct nfs_fh * fh;
836 const char * name;
837 unsigned int len;
838 enum nfs3_ftype type;
839 struct iattr * sattr;
840 dev_t rdev;
841 };
842
843 struct nfs3_linkargs {
844 struct nfs_fh * fromfh;
845 struct nfs_fh * tofh;
846 const char * toname;
847 unsigned int tolen;
848 };
849
850 struct nfs3_readdirargs {
851 struct nfs_fh * fh;
852 __u64 cookie;
853 __be32 verf[2];
854 int plus;
855 unsigned int count;
856 struct page ** pages;
857 };
858
859 struct nfs3_diropres {
860 struct nfs_fattr * dir_attr;
861 struct nfs_fh * fh;
862 struct nfs_fattr * fattr;
863 };
864
865 struct nfs3_accessres {
866 struct nfs_fattr * fattr;
867 __u32 access;
868 };
869
870 struct nfs3_readlinkargs {
871 struct nfs_fh * fh;
872 unsigned int pgbase;
873 unsigned int pglen;
874 struct page ** pages;
875 };
876
877 struct nfs3_linkres {
878 struct nfs_fattr * dir_attr;
879 struct nfs_fattr * fattr;
880 };
881
882 struct nfs3_readdirres {
883 struct nfs_fattr * dir_attr;
884 __be32 * verf;
885 int plus;
886 };
887
888 struct nfs3_getaclres {
889 struct nfs_fattr * fattr;
890 int mask;
891 unsigned int acl_access_count;
892 unsigned int acl_default_count;
893 struct posix_acl * acl_access;
894 struct posix_acl * acl_default;
895 };
896
897 #if IS_ENABLED(CONFIG_NFS_V4)
898
899 typedef u64 clientid4;
900
901 struct nfs4_accessargs {
902 struct nfs4_sequence_args seq_args;
903 const struct nfs_fh * fh;
904 const u32 * bitmask;
905 u32 access;
906 };
907
908 struct nfs4_accessres {
909 struct nfs4_sequence_res seq_res;
910 const struct nfs_server * server;
911 struct nfs_fattr * fattr;
912 u32 supported;
913 u32 access;
914 };
915
916 struct nfs4_create_arg {
917 struct nfs4_sequence_args seq_args;
918 u32 ftype;
919 union {
920 struct {
921 struct page ** pages;
922 unsigned int len;
923 } symlink; /* NF4LNK */
924 struct {
925 u32 specdata1;
926 u32 specdata2;
927 } device; /* NF4BLK, NF4CHR */
928 } u;
929 const struct qstr * name;
930 const struct nfs_server * server;
931 const struct iattr * attrs;
932 const struct nfs_fh * dir_fh;
933 const u32 * bitmask;
934 const struct nfs4_label *label;
935 };
936
937 struct nfs4_create_res {
938 struct nfs4_sequence_res seq_res;
939 const struct nfs_server * server;
940 struct nfs_fh * fh;
941 struct nfs_fattr * fattr;
942 struct nfs4_label *label;
943 struct nfs4_change_info dir_cinfo;
944 };
945
946 struct nfs4_fsinfo_arg {
947 struct nfs4_sequence_args seq_args;
948 const struct nfs_fh * fh;
949 const u32 * bitmask;
950 };
951
952 struct nfs4_fsinfo_res {
953 struct nfs4_sequence_res seq_res;
954 struct nfs_fsinfo *fsinfo;
955 };
956
957 struct nfs4_getattr_arg {
958 struct nfs4_sequence_args seq_args;
959 const struct nfs_fh * fh;
960 const u32 * bitmask;
961 };
962
963 struct nfs4_getattr_res {
964 struct nfs4_sequence_res seq_res;
965 const struct nfs_server * server;
966 struct nfs_fattr * fattr;
967 struct nfs4_label *label;
968 };
969
970 struct nfs4_link_arg {
971 struct nfs4_sequence_args seq_args;
972 const struct nfs_fh * fh;
973 const struct nfs_fh * dir_fh;
974 const struct qstr * name;
975 const u32 * bitmask;
976 };
977
978 struct nfs4_link_res {
979 struct nfs4_sequence_res seq_res;
980 const struct nfs_server * server;
981 struct nfs_fattr * fattr;
982 struct nfs4_label *label;
983 struct nfs4_change_info cinfo;
984 struct nfs_fattr * dir_attr;
985 };
986
987
988 struct nfs4_lookup_arg {
989 struct nfs4_sequence_args seq_args;
990 const struct nfs_fh * dir_fh;
991 const struct qstr * name;
992 const u32 * bitmask;
993 };
994
995 struct nfs4_lookup_res {
996 struct nfs4_sequence_res seq_res;
997 const struct nfs_server * server;
998 struct nfs_fattr * fattr;
999 struct nfs_fh * fh;
1000 struct nfs4_label *label;
1001 };
1002
1003 struct nfs4_lookup_root_arg {
1004 struct nfs4_sequence_args seq_args;
1005 const u32 * bitmask;
1006 };
1007
1008 struct nfs4_pathconf_arg {
1009 struct nfs4_sequence_args seq_args;
1010 const struct nfs_fh * fh;
1011 const u32 * bitmask;
1012 };
1013
1014 struct nfs4_pathconf_res {
1015 struct nfs4_sequence_res seq_res;
1016 struct nfs_pathconf *pathconf;
1017 };
1018
1019 struct nfs4_readdir_arg {
1020 struct nfs4_sequence_args seq_args;
1021 const struct nfs_fh * fh;
1022 u64 cookie;
1023 nfs4_verifier verifier;
1024 u32 count;
1025 struct page ** pages; /* zero-copy data */
1026 unsigned int pgbase; /* zero-copy data */
1027 const u32 * bitmask;
1028 int plus;
1029 };
1030
1031 struct nfs4_readdir_res {
1032 struct nfs4_sequence_res seq_res;
1033 nfs4_verifier verifier;
1034 unsigned int pgbase;
1035 };
1036
1037 struct nfs4_readlink {
1038 struct nfs4_sequence_args seq_args;
1039 const struct nfs_fh * fh;
1040 unsigned int pgbase;
1041 unsigned int pglen; /* zero-copy data */
1042 struct page ** pages; /* zero-copy data */
1043 };
1044
1045 struct nfs4_readlink_res {
1046 struct nfs4_sequence_res seq_res;
1047 };
1048
1049 struct nfs4_setclientid {
1050 const nfs4_verifier * sc_verifier;
1051 u32 sc_prog;
1052 unsigned int sc_netid_len;
1053 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
1054 unsigned int sc_uaddr_len;
1055 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
1056 struct nfs_client *sc_clnt;
1057 struct rpc_cred *sc_cred;
1058 };
1059
1060 struct nfs4_setclientid_res {
1061 u64 clientid;
1062 nfs4_verifier confirm;
1063 };
1064
1065 struct nfs4_statfs_arg {
1066 struct nfs4_sequence_args seq_args;
1067 const struct nfs_fh * fh;
1068 const u32 * bitmask;
1069 };
1070
1071 struct nfs4_statfs_res {
1072 struct nfs4_sequence_res seq_res;
1073 struct nfs_fsstat *fsstat;
1074 };
1075
1076 struct nfs4_server_caps_arg {
1077 struct nfs4_sequence_args seq_args;
1078 struct nfs_fh *fhandle;
1079 const u32 * bitmask;
1080 };
1081
1082 struct nfs4_server_caps_res {
1083 struct nfs4_sequence_res seq_res;
1084 u32 attr_bitmask[3];
1085 u32 exclcreat_bitmask[3];
1086 u32 acl_bitmask;
1087 u32 has_links;
1088 u32 has_symlinks;
1089 u32 fh_expire_type;
1090 };
1091
1092 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1093 struct nfs4_pathname {
1094 unsigned int ncomponents;
1095 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
1096 };
1097
1098 #define NFS4_FS_LOCATION_MAXSERVERS 10
1099 struct nfs4_fs_location {
1100 unsigned int nservers;
1101 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
1102 struct nfs4_pathname rootpath;
1103 };
1104
1105 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1106 struct nfs4_fs_locations {
1107 struct nfs_fattr fattr;
1108 const struct nfs_server *server;
1109 struct nfs4_pathname fs_path;
1110 int nlocations;
1111 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
1112 };
1113
1114 struct nfs4_fs_locations_arg {
1115 struct nfs4_sequence_args seq_args;
1116 const struct nfs_fh *dir_fh;
1117 const struct nfs_fh *fh;
1118 const struct qstr *name;
1119 struct page *page;
1120 const u32 *bitmask;
1121 clientid4 clientid;
1122 unsigned char migration:1, renew:1;
1123 };
1124
1125 struct nfs4_fs_locations_res {
1126 struct nfs4_sequence_res seq_res;
1127 struct nfs4_fs_locations *fs_locations;
1128 unsigned char migration:1, renew:1;
1129 };
1130
1131 struct nfs4_secinfo4 {
1132 u32 flavor;
1133 struct rpcsec_gss_info flavor_info;
1134 };
1135
1136 struct nfs4_secinfo_flavors {
1137 unsigned int num_flavors;
1138 struct nfs4_secinfo4 flavors[0];
1139 };
1140
1141 struct nfs4_secinfo_arg {
1142 struct nfs4_sequence_args seq_args;
1143 const struct nfs_fh *dir_fh;
1144 const struct qstr *name;
1145 };
1146
1147 struct nfs4_secinfo_res {
1148 struct nfs4_sequence_res seq_res;
1149 struct nfs4_secinfo_flavors *flavors;
1150 };
1151
1152 struct nfs4_fsid_present_arg {
1153 struct nfs4_sequence_args seq_args;
1154 const struct nfs_fh *fh;
1155 clientid4 clientid;
1156 unsigned char renew:1;
1157 };
1158
1159 struct nfs4_fsid_present_res {
1160 struct nfs4_sequence_res seq_res;
1161 struct nfs_fh *fh;
1162 unsigned char renew:1;
1163 };
1164
1165 #endif /* CONFIG_NFS_V4 */
1166
1167 struct nfstime4 {
1168 u64 seconds;
1169 u32 nseconds;
1170 };
1171
1172 #ifdef CONFIG_NFS_V4_1
1173
1174 struct pnfs_commit_bucket {
1175 struct list_head written;
1176 struct list_head committing;
1177 struct pnfs_layout_segment *wlseg;
1178 struct pnfs_layout_segment *clseg;
1179 struct nfs_writeverf direct_verf;
1180 };
1181
1182 struct pnfs_ds_commit_info {
1183 int nwritten;
1184 int ncommitting;
1185 int nbuckets;
1186 struct pnfs_commit_bucket *buckets;
1187 };
1188
1189 #define NFS4_OP_MAP_NUM_LONGS \
1190 DIV_ROUND_UP(LAST_NFS4_OP, 8 * sizeof(unsigned long))
1191 #define NFS4_OP_MAP_NUM_WORDS \
1192 (NFS4_OP_MAP_NUM_LONGS * sizeof(unsigned long) / sizeof(u32))
1193 struct nfs4_op_map {
1194 union {
1195 unsigned long longs[NFS4_OP_MAP_NUM_LONGS];
1196 u32 words[NFS4_OP_MAP_NUM_WORDS];
1197 } u;
1198 };
1199
1200 struct nfs41_state_protection {
1201 u32 how;
1202 struct nfs4_op_map enforce;
1203 struct nfs4_op_map allow;
1204 };
1205
1206 struct nfs41_exchange_id_args {
1207 struct nfs_client *client;
1208 nfs4_verifier *verifier;
1209 u32 flags;
1210 struct nfs41_state_protection state_protect;
1211 };
1212
1213 struct nfs41_server_owner {
1214 uint64_t minor_id;
1215 uint32_t major_id_sz;
1216 char major_id[NFS4_OPAQUE_LIMIT];
1217 };
1218
1219 struct nfs41_server_scope {
1220 uint32_t server_scope_sz;
1221 char server_scope[NFS4_OPAQUE_LIMIT];
1222 };
1223
1224 struct nfs41_impl_id {
1225 char domain[NFS4_OPAQUE_LIMIT + 1];
1226 char name[NFS4_OPAQUE_LIMIT + 1];
1227 struct nfstime4 date;
1228 };
1229
1230 struct nfs41_bind_conn_to_session_args {
1231 struct nfs_client *client;
1232 struct nfs4_sessionid sessionid;
1233 u32 dir;
1234 bool use_conn_in_rdma_mode;
1235 };
1236
1237 struct nfs41_bind_conn_to_session_res {
1238 struct nfs4_sessionid sessionid;
1239 u32 dir;
1240 bool use_conn_in_rdma_mode;
1241 };
1242
1243 struct nfs41_exchange_id_res {
1244 u64 clientid;
1245 u32 seqid;
1246 u32 flags;
1247 struct nfs41_server_owner *server_owner;
1248 struct nfs41_server_scope *server_scope;
1249 struct nfs41_impl_id *impl_id;
1250 struct nfs41_state_protection state_protect;
1251 };
1252
1253 struct nfs41_create_session_args {
1254 struct nfs_client *client;
1255 u64 clientid;
1256 uint32_t seqid;
1257 uint32_t flags;
1258 uint32_t cb_program;
1259 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1260 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1261 };
1262
1263 struct nfs41_create_session_res {
1264 struct nfs4_sessionid sessionid;
1265 uint32_t seqid;
1266 uint32_t flags;
1267 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1268 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1269 };
1270
1271 struct nfs41_reclaim_complete_args {
1272 struct nfs4_sequence_args seq_args;
1273 /* In the future extend to include curr_fh for use with migration */
1274 unsigned char one_fs:1;
1275 };
1276
1277 struct nfs41_reclaim_complete_res {
1278 struct nfs4_sequence_res seq_res;
1279 };
1280
1281 #define SECINFO_STYLE_CURRENT_FH 0
1282 #define SECINFO_STYLE_PARENT 1
1283 struct nfs41_secinfo_no_name_args {
1284 struct nfs4_sequence_args seq_args;
1285 int style;
1286 };
1287
1288 struct nfs41_test_stateid_args {
1289 struct nfs4_sequence_args seq_args;
1290 nfs4_stateid *stateid;
1291 };
1292
1293 struct nfs41_test_stateid_res {
1294 struct nfs4_sequence_res seq_res;
1295 unsigned int status;
1296 };
1297
1298 struct nfs41_free_stateid_args {
1299 struct nfs4_sequence_args seq_args;
1300 nfs4_stateid stateid;
1301 };
1302
1303 struct nfs41_free_stateid_res {
1304 struct nfs4_sequence_res seq_res;
1305 unsigned int status;
1306 };
1307
1308 static inline void
nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info * cinfo)1309 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
1310 {
1311 kfree(cinfo->buckets);
1312 }
1313
1314 #else
1315
1316 struct pnfs_ds_commit_info {
1317 };
1318
1319 static inline void
nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info * cinfo)1320 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
1321 {
1322 }
1323
1324 #endif /* CONFIG_NFS_V4_1 */
1325
1326 #ifdef CONFIG_NFS_V4_2
1327 struct nfs42_falloc_args {
1328 struct nfs4_sequence_args seq_args;
1329
1330 struct nfs_fh *falloc_fh;
1331 nfs4_stateid falloc_stateid;
1332 u64 falloc_offset;
1333 u64 falloc_length;
1334 const u32 *falloc_bitmask;
1335 };
1336
1337 struct nfs42_falloc_res {
1338 struct nfs4_sequence_res seq_res;
1339 unsigned int status;
1340
1341 struct nfs_fattr *falloc_fattr;
1342 const struct nfs_server *falloc_server;
1343 };
1344
1345 struct nfs42_seek_args {
1346 struct nfs4_sequence_args seq_args;
1347
1348 struct nfs_fh *sa_fh;
1349 nfs4_stateid sa_stateid;
1350 u64 sa_offset;
1351 u32 sa_what;
1352 };
1353
1354 struct nfs42_seek_res {
1355 struct nfs4_sequence_res seq_res;
1356 unsigned int status;
1357
1358 u32 sr_eof;
1359 u64 sr_offset;
1360 };
1361 #endif
1362
1363 struct nfs_page;
1364
1365 #define NFS_PAGEVEC_SIZE (8U)
1366
1367 struct nfs_page_array {
1368 struct page **pagevec;
1369 unsigned int npages; /* Max length of pagevec */
1370 struct page *page_array[NFS_PAGEVEC_SIZE];
1371 };
1372
1373 /* used as flag bits in nfs_pgio_header */
1374 enum {
1375 NFS_IOHDR_ERROR = 0,
1376 NFS_IOHDR_EOF,
1377 NFS_IOHDR_REDO,
1378 };
1379
1380 struct nfs_pgio_header {
1381 struct inode *inode;
1382 struct rpc_cred *cred;
1383 struct list_head pages;
1384 struct nfs_page *req;
1385 struct nfs_writeverf verf; /* Used for writes */
1386 struct pnfs_layout_segment *lseg;
1387 loff_t io_start;
1388 const struct rpc_call_ops *mds_ops;
1389 void (*release) (struct nfs_pgio_header *hdr);
1390 const struct nfs_pgio_completion_ops *completion_ops;
1391 const struct nfs_rw_ops *rw_ops;
1392 struct nfs_direct_req *dreq;
1393 void *layout_private;
1394 spinlock_t lock;
1395 /* fields protected by lock */
1396 int pnfs_error;
1397 int error; /* merge with pnfs_error */
1398 unsigned long good_bytes; /* boundary of good data */
1399 unsigned long flags;
1400
1401 /*
1402 * rpc data
1403 */
1404 struct rpc_task task;
1405 struct nfs_fattr fattr;
1406 struct nfs_pgio_args args; /* argument struct */
1407 struct nfs_pgio_res res; /* result struct */
1408 unsigned long timestamp; /* For lease renewal */
1409 int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *);
1410 __u64 mds_offset; /* Filelayout dense stripe */
1411 struct nfs_page_array page_array;
1412 struct nfs_client *ds_clp; /* pNFS data server */
1413 int ds_commit_idx; /* ds index if ds_clp is set */
1414 int pgio_mirror_idx;/* mirror index in pgio layer */
1415 };
1416
1417 struct nfs_mds_commit_info {
1418 atomic_t rpcs_out;
1419 unsigned long ncommit;
1420 struct list_head list;
1421 };
1422
1423 struct nfs_commit_data;
1424 struct nfs_inode;
1425 struct nfs_commit_completion_ops {
1426 void (*error_cleanup) (struct nfs_inode *nfsi);
1427 void (*completion) (struct nfs_commit_data *data);
1428 };
1429
1430 struct nfs_commit_info {
1431 spinlock_t *lock; /* inode->i_lock */
1432 struct nfs_mds_commit_info *mds;
1433 struct pnfs_ds_commit_info *ds;
1434 struct nfs_direct_req *dreq; /* O_DIRECT request */
1435 const struct nfs_commit_completion_ops *completion_ops;
1436 };
1437
1438 struct nfs_commit_data {
1439 struct rpc_task task;
1440 struct inode *inode;
1441 struct rpc_cred *cred;
1442 struct nfs_fattr fattr;
1443 struct nfs_writeverf verf;
1444 struct list_head pages; /* Coalesced requests we wish to flush */
1445 struct list_head list; /* lists of struct nfs_write_data */
1446 struct nfs_direct_req *dreq; /* O_DIRECT request */
1447 struct nfs_commitargs args; /* argument struct */
1448 struct nfs_commitres res; /* result struct */
1449 struct nfs_open_context *context;
1450 struct pnfs_layout_segment *lseg;
1451 struct nfs_client *ds_clp; /* pNFS data server */
1452 int ds_commit_index;
1453 loff_t lwb;
1454 const struct rpc_call_ops *mds_ops;
1455 const struct nfs_commit_completion_ops *completion_ops;
1456 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
1457 };
1458
1459 struct nfs_pgio_completion_ops {
1460 void (*error_cleanup)(struct list_head *head);
1461 void (*init_hdr)(struct nfs_pgio_header *hdr);
1462 void (*completion)(struct nfs_pgio_header *hdr);
1463 };
1464
1465 struct nfs_unlinkdata {
1466 struct hlist_node list;
1467 struct nfs_removeargs args;
1468 struct nfs_removeres res;
1469 struct inode *dir;
1470 struct rpc_cred *cred;
1471 struct nfs_fattr dir_attr;
1472 long timeout;
1473 };
1474
1475 struct nfs_renamedata {
1476 struct nfs_renameargs args;
1477 struct nfs_renameres res;
1478 struct rpc_cred *cred;
1479 struct inode *old_dir;
1480 struct dentry *old_dentry;
1481 struct nfs_fattr old_fattr;
1482 struct inode *new_dir;
1483 struct dentry *new_dentry;
1484 struct nfs_fattr new_fattr;
1485 void (*complete)(struct rpc_task *, struct nfs_renamedata *);
1486 long timeout;
1487 };
1488
1489 struct nfs_access_entry;
1490 struct nfs_client;
1491 struct rpc_timeout;
1492 struct nfs_subversion;
1493 struct nfs_mount_info;
1494 struct nfs_client_initdata;
1495 struct nfs_pageio_descriptor;
1496
1497 /*
1498 * RPC procedure vector for NFSv2/NFSv3 demuxing
1499 */
1500 struct nfs_rpc_ops {
1501 u32 version; /* Protocol version */
1502 const struct dentry_operations *dentry_ops;
1503 const struct inode_operations *dir_inode_ops;
1504 const struct inode_operations *file_inode_ops;
1505 const struct file_operations *file_ops;
1506
1507 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1508 struct nfs_fsinfo *);
1509 struct vfsmount *(*submount) (struct nfs_server *, struct dentry *,
1510 struct nfs_fh *, struct nfs_fattr *);
1511 struct dentry *(*try_mount) (int, const char *, struct nfs_mount_info *,
1512 struct nfs_subversion *);
1513 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1514 struct nfs_fattr *, struct nfs4_label *);
1515 int (*setattr) (struct dentry *, struct nfs_fattr *,
1516 struct iattr *);
1517 int (*lookup) (struct inode *, struct qstr *,
1518 struct nfs_fh *, struct nfs_fattr *,
1519 struct nfs4_label *);
1520 int (*access) (struct inode *, struct nfs_access_entry *);
1521 int (*readlink)(struct inode *, struct page *, unsigned int,
1522 unsigned int);
1523 int (*create) (struct inode *, struct dentry *,
1524 struct iattr *, int);
1525 int (*remove) (struct inode *, struct qstr *);
1526 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1527 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
1528 int (*unlink_done) (struct rpc_task *, struct inode *);
1529 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1530 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
1531 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1532 int (*link) (struct inode *, struct inode *, struct qstr *);
1533 int (*symlink) (struct inode *, struct dentry *, struct page *,
1534 unsigned int, struct iattr *);
1535 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1536 int (*rmdir) (struct inode *, struct qstr *);
1537 int (*readdir) (struct dentry *, struct rpc_cred *,
1538 u64, struct page **, unsigned int, int);
1539 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1540 dev_t);
1541 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1542 struct nfs_fsstat *);
1543 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1544 struct nfs_fsinfo *);
1545 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1546 struct nfs_pathconf *);
1547 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1548 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1549 int (*pgio_rpc_prepare)(struct rpc_task *,
1550 struct nfs_pgio_header *);
1551 void (*read_setup)(struct nfs_pgio_header *, struct rpc_message *);
1552 int (*read_done)(struct rpc_task *, struct nfs_pgio_header *);
1553 void (*write_setup)(struct nfs_pgio_header *, struct rpc_message *);
1554 int (*write_done)(struct rpc_task *, struct nfs_pgio_header *);
1555 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *);
1556 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
1557 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *);
1558 int (*lock)(struct file *, int, struct file_lock *);
1559 int (*lock_check_bounds)(const struct file_lock *);
1560 void (*clear_acl_cache)(struct inode *);
1561 void (*close_context)(struct nfs_open_context *ctx, int);
1562 struct inode * (*open_context) (struct inode *dir,
1563 struct nfs_open_context *ctx,
1564 int open_flags,
1565 struct iattr *iattr,
1566 int *);
1567 int (*have_delegation)(struct inode *, fmode_t);
1568 int (*return_delegation)(struct inode *);
1569 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *);
1570 struct nfs_client *
1571 (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1572 const char *);
1573 void (*free_client) (struct nfs_client *);
1574 struct nfs_server *(*create_server)(struct nfs_mount_info *, struct nfs_subversion *);
1575 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *,
1576 struct nfs_fattr *, rpc_authflavor_t);
1577 };
1578
1579 /*
1580 * NFS_CALL(getattr, inode, (fattr));
1581 * into
1582 * NFS_PROTO(inode)->getattr(fattr);
1583 */
1584 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1585
1586 /*
1587 * Function vectors etc. for the NFS client
1588 */
1589 extern const struct nfs_rpc_ops nfs_v2_clientops;
1590 extern const struct nfs_rpc_ops nfs_v3_clientops;
1591 extern const struct nfs_rpc_ops nfs_v4_clientops;
1592 extern const struct rpc_version nfs_version2;
1593 extern const struct rpc_version nfs_version3;
1594 extern const struct rpc_version nfs_version4;
1595
1596 extern const struct rpc_version nfsacl_version3;
1597 extern const struct rpc_program nfsacl_program;
1598
1599 #endif
1600