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Linux 4.6-rc6
[cris-mirror.git] / include / linux / nfs_xdr.h
blobd320906cf13e5d7d3d443a6249992202eb171f59
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 __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 __be32 *start_p;
279 };
280
281 struct nfs4_layoutcommit_res {
282 struct nfs4_sequence_res seq_res;
283 struct nfs_fattr *fattr;
284 const struct nfs_server *server;
285 int status;
286 };
287
288 struct nfs4_layoutcommit_data {
289 struct rpc_task task;
290 struct nfs_fattr fattr;
291 struct list_head lseg_list;
292 struct rpc_cred *cred;
293 struct inode *inode;
294 struct nfs4_layoutcommit_args args;
295 struct nfs4_layoutcommit_res res;
296 };
297
298 struct nfs4_layoutreturn_args {
299 struct nfs4_sequence_args seq_args;
300 struct pnfs_layout_hdr *layout;
301 struct inode *inode;
302 struct pnfs_layout_range range;
303 nfs4_stateid stateid;
304 __u32 layout_type;
305 };
306
307 struct nfs4_layoutreturn_res {
308 struct nfs4_sequence_res seq_res;
309 u32 lrs_present;
310 nfs4_stateid stateid;
311 };
312
313 struct nfs4_layoutreturn {
314 struct nfs4_layoutreturn_args args;
315 struct nfs4_layoutreturn_res res;
316 struct rpc_cred *cred;
317 struct nfs_client *clp;
318 struct inode *inode;
319 int rpc_status;
320 };
321
322 #define PNFS_LAYOUTSTATS_MAXSIZE 256
323
324 struct nfs42_layoutstat_args;
325 struct nfs42_layoutstat_devinfo;
326 typedef void (*layoutstats_encode_t)(struct xdr_stream *,
327 struct nfs42_layoutstat_args *,
328 struct nfs42_layoutstat_devinfo *);
329
330 /* Per file per deviceid layoutstats */
331 struct nfs42_layoutstat_devinfo {
332 struct nfs4_deviceid dev_id;
333 __u64 offset;
334 __u64 length;
335 __u64 read_count;
336 __u64 read_bytes;
337 __u64 write_count;
338 __u64 write_bytes;
339 __u32 layout_type;
340 layoutstats_encode_t layoutstats_encode;
341 void *layout_private;
342 };
343
344 struct nfs42_layoutstat_args {
345 struct nfs4_sequence_args seq_args;
346 struct nfs_fh *fh;
347 struct inode *inode;
348 nfs4_stateid stateid;
349 int num_dev;
350 struct nfs42_layoutstat_devinfo *devinfo;
351 };
352
353 struct nfs42_layoutstat_res {
354 struct nfs4_sequence_res seq_res;
355 int num_dev;
356 int rpc_status;
357 };
358
359 struct nfs42_layoutstat_data {
360 struct inode *inode;
361 struct nfs42_layoutstat_args args;
362 struct nfs42_layoutstat_res res;
363 };
364
365 struct nfs42_clone_args {
366 struct nfs4_sequence_args seq_args;
367 struct nfs_fh *src_fh;
368 struct nfs_fh *dst_fh;
369 nfs4_stateid src_stateid;
370 nfs4_stateid dst_stateid;
371 __u64 src_offset;
372 __u64 dst_offset;
373 __u64 count;
374 const u32 *dst_bitmask;
375 };
376
377 struct nfs42_clone_res {
378 struct nfs4_sequence_res seq_res;
379 unsigned int rpc_status;
380 struct nfs_fattr *dst_fattr;
381 const struct nfs_server *server;
382 };
383
384 struct stateowner_id {
385 __u64 create_time;
386 __u32 uniquifier;
387 };
388
389 /*
390 * Arguments to the open call.
391 */
392 struct nfs_openargs {
393 struct nfs4_sequence_args seq_args;
394 const struct nfs_fh * fh;
395 struct nfs_seqid * seqid;
396 int open_flags;
397 fmode_t fmode;
398 u32 share_access;
399 u32 access;
400 __u64 clientid;
401 struct stateowner_id id;
402 union {
403 struct {
404 struct iattr * attrs; /* UNCHECKED, GUARDED, EXCLUSIVE4_1 */
405 nfs4_verifier verifier; /* EXCLUSIVE */
406 };
407 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
408 fmode_t delegation_type; /* CLAIM_PREVIOUS */
409 } u;
410 const struct qstr * name;
411 const struct nfs_server *server; /* Needed for ID mapping */
412 const u32 * bitmask;
413 const u32 * open_bitmap;
414 enum open_claim_type4 claim;
415 enum createmode4 createmode;
416 const struct nfs4_label *label;
417 };
418
419 struct nfs_openres {
420 struct nfs4_sequence_res seq_res;
421 nfs4_stateid stateid;
422 struct nfs_fh fh;
423 struct nfs4_change_info cinfo;
424 __u32 rflags;
425 struct nfs_fattr * f_attr;
426 struct nfs4_label *f_label;
427 struct nfs_seqid * seqid;
428 const struct nfs_server *server;
429 fmode_t delegation_type;
430 nfs4_stateid delegation;
431 unsigned long pagemod_limit;
432 __u32 do_recall;
433 __u32 attrset[NFS4_BITMAP_SIZE];
434 struct nfs4_string *owner;
435 struct nfs4_string *group_owner;
436 __u32 access_request;
437 __u32 access_supported;
438 __u32 access_result;
439 };
440
441 /*
442 * Arguments to the open_confirm call.
443 */
444 struct nfs_open_confirmargs {
445 struct nfs4_sequence_args seq_args;
446 const struct nfs_fh * fh;
447 nfs4_stateid * stateid;
448 struct nfs_seqid * seqid;
449 };
450
451 struct nfs_open_confirmres {
452 struct nfs4_sequence_res seq_res;
453 nfs4_stateid stateid;
454 struct nfs_seqid * seqid;
455 };
456
457 /*
458 * Arguments to the close call.
459 */
460 struct nfs_closeargs {
461 struct nfs4_sequence_args seq_args;
462 struct nfs_fh * fh;
463 nfs4_stateid stateid;
464 struct nfs_seqid * seqid;
465 fmode_t fmode;
466 u32 share_access;
467 const u32 * bitmask;
468 };
469
470 struct nfs_closeres {
471 struct nfs4_sequence_res seq_res;
472 nfs4_stateid stateid;
473 struct nfs_fattr * fattr;
474 struct nfs_seqid * seqid;
475 const struct nfs_server *server;
476 };
477 /*
478 * * Arguments to the lock,lockt, and locku call.
479 * */
480 struct nfs_lowner {
481 __u64 clientid;
482 __u64 id;
483 dev_t s_dev;
484 };
485
486 struct nfs_lock_args {
487 struct nfs4_sequence_args seq_args;
488 struct nfs_fh * fh;
489 struct file_lock * fl;
490 struct nfs_seqid * lock_seqid;
491 nfs4_stateid lock_stateid;
492 struct nfs_seqid * open_seqid;
493 nfs4_stateid open_stateid;
494 struct nfs_lowner lock_owner;
495 unsigned char block : 1;
496 unsigned char reclaim : 1;
497 unsigned char new_lock : 1;
498 unsigned char new_lock_owner : 1;
499 };
500
501 struct nfs_lock_res {
502 struct nfs4_sequence_res seq_res;
503 nfs4_stateid stateid;
504 struct nfs_seqid * lock_seqid;
505 struct nfs_seqid * open_seqid;
506 };
507
508 struct nfs_locku_args {
509 struct nfs4_sequence_args seq_args;
510 struct nfs_fh * fh;
511 struct file_lock * fl;
512 struct nfs_seqid * seqid;
513 nfs4_stateid stateid;
514 };
515
516 struct nfs_locku_res {
517 struct nfs4_sequence_res seq_res;
518 nfs4_stateid stateid;
519 struct nfs_seqid * seqid;
520 };
521
522 struct nfs_lockt_args {
523 struct nfs4_sequence_args seq_args;
524 struct nfs_fh * fh;
525 struct file_lock * fl;
526 struct nfs_lowner lock_owner;
527 };
528
529 struct nfs_lockt_res {
530 struct nfs4_sequence_res seq_res;
531 struct file_lock * denied; /* LOCK, LOCKT failed */
532 };
533
534 struct nfs_release_lockowner_args {
535 struct nfs4_sequence_args seq_args;
536 struct nfs_lowner lock_owner;
537 };
538
539 struct nfs_release_lockowner_res {
540 struct nfs4_sequence_res seq_res;
541 };
542
543 struct nfs4_delegreturnargs {
544 struct nfs4_sequence_args seq_args;
545 const struct nfs_fh *fhandle;
546 const nfs4_stateid *stateid;
547 const u32 * bitmask;
548 };
549
550 struct nfs4_delegreturnres {
551 struct nfs4_sequence_res seq_res;
552 struct nfs_fattr * fattr;
553 struct nfs_server *server;
554 };
555
556 /*
557 * Arguments to the write call.
558 */
559 struct nfs_write_verifier {
560 char data[8];
561 };
562
563 struct nfs_writeverf {
564 struct nfs_write_verifier verifier;
565 enum nfs3_stable_how committed;
566 };
567
568 /*
569 * Arguments shared by the read and write call.
570 */
571 struct nfs_pgio_args {
572 struct nfs4_sequence_args seq_args;
573 struct nfs_fh * fh;
574 struct nfs_open_context *context;
575 struct nfs_lock_context *lock_context;
576 nfs4_stateid stateid;
577 __u64 offset;
578 __u32 count;
579 unsigned int pgbase;
580 struct page ** pages;
581 const u32 * bitmask; /* used by write */
582 enum nfs3_stable_how stable; /* used by write */
583 };
584
585 struct nfs_pgio_res {
586 struct nfs4_sequence_res seq_res;
587 struct nfs_fattr * fattr;
588 __u32 count;
589 __u32 op_status;
590 int eof; /* used by read */
591 struct nfs_writeverf * verf; /* used by write */
592 const struct nfs_server *server; /* used by write */
593
594 };
595
596 /*
597 * Arguments to the commit call.
598 */
599 struct nfs_commitargs {
600 struct nfs4_sequence_args seq_args;
601 struct nfs_fh *fh;
602 __u64 offset;
603 __u32 count;
604 const u32 *bitmask;
605 };
606
607 struct nfs_commitres {
608 struct nfs4_sequence_res seq_res;
609 __u32 op_status;
610 struct nfs_fattr *fattr;
611 struct nfs_writeverf *verf;
612 const struct nfs_server *server;
613 };
614
615 /*
616 * Common arguments to the unlink call
617 */
618 struct nfs_removeargs {
619 struct nfs4_sequence_args seq_args;
620 const struct nfs_fh *fh;
621 struct qstr name;
622 };
623
624 struct nfs_removeres {
625 struct nfs4_sequence_res seq_res;
626 struct nfs_server *server;
627 struct nfs_fattr *dir_attr;
628 struct nfs4_change_info cinfo;
629 };
630
631 /*
632 * Common arguments to the rename call
633 */
634 struct nfs_renameargs {
635 struct nfs4_sequence_args seq_args;
636 const struct nfs_fh *old_dir;
637 const struct nfs_fh *new_dir;
638 const struct qstr *old_name;
639 const struct qstr *new_name;
640 };
641
642 struct nfs_renameres {
643 struct nfs4_sequence_res seq_res;
644 struct nfs_server *server;
645 struct nfs4_change_info old_cinfo;
646 struct nfs_fattr *old_fattr;
647 struct nfs4_change_info new_cinfo;
648 struct nfs_fattr *new_fattr;
649 };
650
651 /* parsed sec= options */
652 #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */
653 struct nfs_auth_info {
654 unsigned int flavor_len;
655 rpc_authflavor_t flavors[NFS_AUTH_INFO_MAX_FLAVORS];
656 };
657
658 /*
659 * Argument struct for decode_entry function
660 */
661 struct nfs_entry {
662 __u64 ino;
663 __u64 cookie,
664 prev_cookie;
665 const char * name;
666 unsigned int len;
667 int eof;
668 struct nfs_fh * fh;
669 struct nfs_fattr * fattr;
670 struct nfs4_label *label;
671 unsigned char d_type;
672 struct nfs_server * server;
673 };
674
675 /*
676 * The following types are for NFSv2 only.
677 */
678 struct nfs_sattrargs {
679 struct nfs_fh * fh;
680 struct iattr * sattr;
681 };
682
683 struct nfs_diropargs {
684 struct nfs_fh * fh;
685 const char * name;
686 unsigned int len;
687 };
688
689 struct nfs_createargs {
690 struct nfs_fh * fh;
691 const char * name;
692 unsigned int len;
693 struct iattr * sattr;
694 };
695
696 struct nfs_setattrargs {
697 struct nfs4_sequence_args seq_args;
698 struct nfs_fh * fh;
699 nfs4_stateid stateid;
700 struct iattr * iap;
701 const struct nfs_server * server; /* Needed for name mapping */
702 const u32 * bitmask;
703 const struct nfs4_label *label;
704 };
705
706 struct nfs_setaclargs {
707 struct nfs4_sequence_args seq_args;
708 struct nfs_fh * fh;
709 size_t acl_len;
710 struct page ** acl_pages;
711 };
712
713 struct nfs_setaclres {
714 struct nfs4_sequence_res seq_res;
715 };
716
717 struct nfs_getaclargs {
718 struct nfs4_sequence_args seq_args;
719 struct nfs_fh * fh;
720 size_t acl_len;
721 struct page ** acl_pages;
722 };
723
724 /* getxattr ACL interface flags */
725 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
726 struct nfs_getaclres {
727 struct nfs4_sequence_res seq_res;
728 size_t acl_len;
729 size_t acl_data_offset;
730 int acl_flags;
731 struct page * acl_scratch;
732 };
733
734 struct nfs_setattrres {
735 struct nfs4_sequence_res seq_res;
736 struct nfs_fattr * fattr;
737 struct nfs4_label *label;
738 const struct nfs_server * server;
739 };
740
741 struct nfs_linkargs {
742 struct nfs_fh * fromfh;
743 struct nfs_fh * tofh;
744 const char * toname;
745 unsigned int tolen;
746 };
747
748 struct nfs_symlinkargs {
749 struct nfs_fh * fromfh;
750 const char * fromname;
751 unsigned int fromlen;
752 struct page ** pages;
753 unsigned int pathlen;
754 struct iattr * sattr;
755 };
756
757 struct nfs_readdirargs {
758 struct nfs_fh * fh;
759 __u32 cookie;
760 unsigned int count;
761 struct page ** pages;
762 };
763
764 struct nfs3_getaclargs {
765 struct nfs_fh * fh;
766 int mask;
767 struct page ** pages;
768 };
769
770 struct nfs3_setaclargs {
771 struct inode * inode;
772 int mask;
773 struct posix_acl * acl_access;
774 struct posix_acl * acl_default;
775 size_t len;
776 unsigned int npages;
777 struct page ** pages;
778 };
779
780 struct nfs_diropok {
781 struct nfs_fh * fh;
782 struct nfs_fattr * fattr;
783 };
784
785 struct nfs_readlinkargs {
786 struct nfs_fh * fh;
787 unsigned int pgbase;
788 unsigned int pglen;
789 struct page ** pages;
790 };
791
792 struct nfs3_sattrargs {
793 struct nfs_fh * fh;
794 struct iattr * sattr;
795 unsigned int guard;
796 struct timespec guardtime;
797 };
798
799 struct nfs3_diropargs {
800 struct nfs_fh * fh;
801 const char * name;
802 unsigned int len;
803 };
804
805 struct nfs3_accessargs {
806 struct nfs_fh * fh;
807 __u32 access;
808 };
809
810 struct nfs3_createargs {
811 struct nfs_fh * fh;
812 const char * name;
813 unsigned int len;
814 struct iattr * sattr;
815 enum nfs3_createmode createmode;
816 __be32 verifier[2];
817 };
818
819 struct nfs3_mkdirargs {
820 struct nfs_fh * fh;
821 const char * name;
822 unsigned int len;
823 struct iattr * sattr;
824 };
825
826 struct nfs3_symlinkargs {
827 struct nfs_fh * fromfh;
828 const char * fromname;
829 unsigned int fromlen;
830 struct page ** pages;
831 unsigned int pathlen;
832 struct iattr * sattr;
833 };
834
835 struct nfs3_mknodargs {
836 struct nfs_fh * fh;
837 const char * name;
838 unsigned int len;
839 enum nfs3_ftype type;
840 struct iattr * sattr;
841 dev_t rdev;
842 };
843
844 struct nfs3_linkargs {
845 struct nfs_fh * fromfh;
846 struct nfs_fh * tofh;
847 const char * toname;
848 unsigned int tolen;
849 };
850
851 struct nfs3_readdirargs {
852 struct nfs_fh * fh;
853 __u64 cookie;
854 __be32 verf[2];
855 int plus;
856 unsigned int count;
857 struct page ** pages;
858 };
859
860 struct nfs3_diropres {
861 struct nfs_fattr * dir_attr;
862 struct nfs_fh * fh;
863 struct nfs_fattr * fattr;
864 };
865
866 struct nfs3_accessres {
867 struct nfs_fattr * fattr;
868 __u32 access;
869 };
870
871 struct nfs3_readlinkargs {
872 struct nfs_fh * fh;
873 unsigned int pgbase;
874 unsigned int pglen;
875 struct page ** pages;
876 };
877
878 struct nfs3_linkres {
879 struct nfs_fattr * dir_attr;
880 struct nfs_fattr * fattr;
881 };
882
883 struct nfs3_readdirres {
884 struct nfs_fattr * dir_attr;
885 __be32 * verf;
886 int plus;
887 };
888
889 struct nfs3_getaclres {
890 struct nfs_fattr * fattr;
891 int mask;
892 unsigned int acl_access_count;
893 unsigned int acl_default_count;
894 struct posix_acl * acl_access;
895 struct posix_acl * acl_default;
896 };
897
898 #if IS_ENABLED(CONFIG_NFS_V4)
899
900 typedef u64 clientid4;
901
902 struct nfs4_accessargs {
903 struct nfs4_sequence_args seq_args;
904 const struct nfs_fh * fh;
905 const u32 * bitmask;
906 u32 access;
907 };
908
909 struct nfs4_accessres {
910 struct nfs4_sequence_res seq_res;
911 const struct nfs_server * server;
912 struct nfs_fattr * fattr;
913 u32 supported;
914 u32 access;
915 };
916
917 struct nfs4_create_arg {
918 struct nfs4_sequence_args seq_args;
919 u32 ftype;
920 union {
921 struct {
922 struct page ** pages;
923 unsigned int len;
924 } symlink; /* NF4LNK */
925 struct {
926 u32 specdata1;
927 u32 specdata2;
928 } device; /* NF4BLK, NF4CHR */
929 } u;
930 const struct qstr * name;
931 const struct nfs_server * server;
932 const struct iattr * attrs;
933 const struct nfs_fh * dir_fh;
934 const u32 * bitmask;
935 const struct nfs4_label *label;
936 };
937
938 struct nfs4_create_res {
939 struct nfs4_sequence_res seq_res;
940 const struct nfs_server * server;
941 struct nfs_fh * fh;
942 struct nfs_fattr * fattr;
943 struct nfs4_label *label;
944 struct nfs4_change_info dir_cinfo;
945 };
946
947 struct nfs4_fsinfo_arg {
948 struct nfs4_sequence_args seq_args;
949 const struct nfs_fh * fh;
950 const u32 * bitmask;
951 };
952
953 struct nfs4_fsinfo_res {
954 struct nfs4_sequence_res seq_res;
955 struct nfs_fsinfo *fsinfo;
956 };
957
958 struct nfs4_getattr_arg {
959 struct nfs4_sequence_args seq_args;
960 const struct nfs_fh * fh;
961 const u32 * bitmask;
962 };
963
964 struct nfs4_getattr_res {
965 struct nfs4_sequence_res seq_res;
966 const struct nfs_server * server;
967 struct nfs_fattr * fattr;
968 struct nfs4_label *label;
969 };
970
971 struct nfs4_link_arg {
972 struct nfs4_sequence_args seq_args;
973 const struct nfs_fh * fh;
974 const struct nfs_fh * dir_fh;
975 const struct qstr * name;
976 const u32 * bitmask;
977 };
978
979 struct nfs4_link_res {
980 struct nfs4_sequence_res seq_res;
981 const struct nfs_server * server;
982 struct nfs_fattr * fattr;
983 struct nfs4_label *label;
984 struct nfs4_change_info cinfo;
985 struct nfs_fattr * dir_attr;
986 };
987
988
989 struct nfs4_lookup_arg {
990 struct nfs4_sequence_args seq_args;
991 const struct nfs_fh * dir_fh;
992 const struct qstr * name;
993 const u32 * bitmask;
994 };
995
996 struct nfs4_lookup_res {
997 struct nfs4_sequence_res seq_res;
998 const struct nfs_server * server;
999 struct nfs_fattr * fattr;
1000 struct nfs_fh * fh;
1001 struct nfs4_label *label;
1002 };
1003
1004 struct nfs4_lookup_root_arg {
1005 struct nfs4_sequence_args seq_args;
1006 const u32 * bitmask;
1007 };
1008
1009 struct nfs4_pathconf_arg {
1010 struct nfs4_sequence_args seq_args;
1011 const struct nfs_fh * fh;
1012 const u32 * bitmask;
1013 };
1014
1015 struct nfs4_pathconf_res {
1016 struct nfs4_sequence_res seq_res;
1017 struct nfs_pathconf *pathconf;
1018 };
1019
1020 struct nfs4_readdir_arg {
1021 struct nfs4_sequence_args seq_args;
1022 const struct nfs_fh * fh;
1023 u64 cookie;
1024 nfs4_verifier verifier;
1025 u32 count;
1026 struct page ** pages; /* zero-copy data */
1027 unsigned int pgbase; /* zero-copy data */
1028 const u32 * bitmask;
1029 int plus;
1030 };
1031
1032 struct nfs4_readdir_res {
1033 struct nfs4_sequence_res seq_res;
1034 nfs4_verifier verifier;
1035 unsigned int pgbase;
1036 };
1037
1038 struct nfs4_readlink {
1039 struct nfs4_sequence_args seq_args;
1040 const struct nfs_fh * fh;
1041 unsigned int pgbase;
1042 unsigned int pglen; /* zero-copy data */
1043 struct page ** pages; /* zero-copy data */
1044 };
1045
1046 struct nfs4_readlink_res {
1047 struct nfs4_sequence_res seq_res;
1048 };
1049
1050 struct nfs4_setclientid {
1051 const nfs4_verifier * sc_verifier;
1052 u32 sc_prog;
1053 unsigned int sc_netid_len;
1054 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
1055 unsigned int sc_uaddr_len;
1056 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
1057 struct nfs_client *sc_clnt;
1058 struct rpc_cred *sc_cred;
1059 };
1060
1061 struct nfs4_setclientid_res {
1062 u64 clientid;
1063 nfs4_verifier confirm;
1064 };
1065
1066 struct nfs4_statfs_arg {
1067 struct nfs4_sequence_args seq_args;
1068 const struct nfs_fh * fh;
1069 const u32 * bitmask;
1070 };
1071
1072 struct nfs4_statfs_res {
1073 struct nfs4_sequence_res seq_res;
1074 struct nfs_fsstat *fsstat;
1075 };
1076
1077 struct nfs4_server_caps_arg {
1078 struct nfs4_sequence_args seq_args;
1079 struct nfs_fh *fhandle;
1080 const u32 * bitmask;
1081 };
1082
1083 struct nfs4_server_caps_res {
1084 struct nfs4_sequence_res seq_res;
1085 u32 attr_bitmask[3];
1086 u32 exclcreat_bitmask[3];
1087 u32 acl_bitmask;
1088 u32 has_links;
1089 u32 has_symlinks;
1090 u32 fh_expire_type;
1091 };
1092
1093 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1094 struct nfs4_pathname {
1095 unsigned int ncomponents;
1096 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
1097 };
1098
1099 #define NFS4_FS_LOCATION_MAXSERVERS 10
1100 struct nfs4_fs_location {
1101 unsigned int nservers;
1102 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
1103 struct nfs4_pathname rootpath;
1104 };
1105
1106 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1107 struct nfs4_fs_locations {
1108 struct nfs_fattr fattr;
1109 const struct nfs_server *server;
1110 struct nfs4_pathname fs_path;
1111 int nlocations;
1112 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
1113 };
1114
1115 struct nfs4_fs_locations_arg {
1116 struct nfs4_sequence_args seq_args;
1117 const struct nfs_fh *dir_fh;
1118 const struct nfs_fh *fh;
1119 const struct qstr *name;
1120 struct page *page;
1121 const u32 *bitmask;
1122 clientid4 clientid;
1123 unsigned char migration:1, renew:1;
1124 };
1125
1126 struct nfs4_fs_locations_res {
1127 struct nfs4_sequence_res seq_res;
1128 struct nfs4_fs_locations *fs_locations;
1129 unsigned char migration:1, renew:1;
1130 };
1131
1132 struct nfs4_secinfo4 {
1133 u32 flavor;
1134 struct rpcsec_gss_info flavor_info;
1135 };
1136
1137 struct nfs4_secinfo_flavors {
1138 unsigned int num_flavors;
1139 struct nfs4_secinfo4 flavors[0];
1140 };
1141
1142 struct nfs4_secinfo_arg {
1143 struct nfs4_sequence_args seq_args;
1144 const struct nfs_fh *dir_fh;
1145 const struct qstr *name;
1146 };
1147
1148 struct nfs4_secinfo_res {
1149 struct nfs4_sequence_res seq_res;
1150 struct nfs4_secinfo_flavors *flavors;
1151 };
1152
1153 struct nfs4_fsid_present_arg {
1154 struct nfs4_sequence_args seq_args;
1155 const struct nfs_fh *fh;
1156 clientid4 clientid;
1157 unsigned char renew:1;
1158 };
1159
1160 struct nfs4_fsid_present_res {
1161 struct nfs4_sequence_res seq_res;
1162 struct nfs_fh *fh;
1163 unsigned char renew:1;
1164 };
1165
1166 #endif /* CONFIG_NFS_V4 */
1167
1168 struct nfstime4 {
1169 u64 seconds;
1170 u32 nseconds;
1171 };
1172
1173 #ifdef CONFIG_NFS_V4_1
1174
1175 struct pnfs_commit_bucket {
1176 struct list_head written;
1177 struct list_head committing;
1178 struct pnfs_layout_segment *wlseg;
1179 struct pnfs_layout_segment *clseg;
1180 struct nfs_writeverf direct_verf;
1181 };
1182
1183 struct pnfs_ds_commit_info {
1184 int nwritten;
1185 int ncommitting;
1186 int nbuckets;
1187 struct pnfs_commit_bucket *buckets;
1188 };
1189
1190 #define NFS4_OP_MAP_NUM_LONGS \
1191 DIV_ROUND_UP(LAST_NFS4_OP, 8 * sizeof(unsigned long))
1192 #define NFS4_OP_MAP_NUM_WORDS \
1193 (NFS4_OP_MAP_NUM_LONGS * sizeof(unsigned long) / sizeof(u32))
1194 struct nfs4_op_map {
1195 union {
1196 unsigned long longs[NFS4_OP_MAP_NUM_LONGS];
1197 u32 words[NFS4_OP_MAP_NUM_WORDS];
1198 } u;
1199 };
1200
1201 struct nfs41_state_protection {
1202 u32 how;
1203 struct nfs4_op_map enforce;
1204 struct nfs4_op_map allow;
1205 };
1206
1207 struct nfs41_exchange_id_args {
1208 struct nfs_client *client;
1209 nfs4_verifier *verifier;
1210 u32 flags;
1211 struct nfs41_state_protection state_protect;
1212 };
1213
1214 struct nfs41_server_owner {
1215 uint64_t minor_id;
1216 uint32_t major_id_sz;
1217 char major_id[NFS4_OPAQUE_LIMIT];
1218 };
1219
1220 struct nfs41_server_scope {
1221 uint32_t server_scope_sz;
1222 char server_scope[NFS4_OPAQUE_LIMIT];
1223 };
1224
1225 struct nfs41_impl_id {
1226 char domain[NFS4_OPAQUE_LIMIT + 1];
1227 char name[NFS4_OPAQUE_LIMIT + 1];
1228 struct nfstime4 date;
1229 };
1230
1231 struct nfs41_bind_conn_to_session_args {
1232 struct nfs_client *client;
1233 struct nfs4_sessionid sessionid;
1234 u32 dir;
1235 bool use_conn_in_rdma_mode;
1236 };
1237
1238 struct nfs41_bind_conn_to_session_res {
1239 struct nfs4_sessionid sessionid;
1240 u32 dir;
1241 bool use_conn_in_rdma_mode;
1242 };
1243
1244 struct nfs41_exchange_id_res {
1245 u64 clientid;
1246 u32 seqid;
1247 u32 flags;
1248 struct nfs41_server_owner *server_owner;
1249 struct nfs41_server_scope *server_scope;
1250 struct nfs41_impl_id *impl_id;
1251 struct nfs41_state_protection state_protect;
1252 };
1253
1254 struct nfs41_create_session_args {
1255 struct nfs_client *client;
1256 u64 clientid;
1257 uint32_t seqid;
1258 uint32_t flags;
1259 uint32_t cb_program;
1260 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1261 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1262 };
1263
1264 struct nfs41_create_session_res {
1265 struct nfs4_sessionid sessionid;
1266 uint32_t seqid;
1267 uint32_t flags;
1268 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1269 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1270 };
1271
1272 struct nfs41_reclaim_complete_args {
1273 struct nfs4_sequence_args seq_args;
1274 /* In the future extend to include curr_fh for use with migration */
1275 unsigned char one_fs:1;
1276 };
1277
1278 struct nfs41_reclaim_complete_res {
1279 struct nfs4_sequence_res seq_res;
1280 };
1281
1282 #define SECINFO_STYLE_CURRENT_FH 0
1283 #define SECINFO_STYLE_PARENT 1
1284 struct nfs41_secinfo_no_name_args {
1285 struct nfs4_sequence_args seq_args;
1286 int style;
1287 };
1288
1289 struct nfs41_test_stateid_args {
1290 struct nfs4_sequence_args seq_args;
1291 nfs4_stateid *stateid;
1292 };
1293
1294 struct nfs41_test_stateid_res {
1295 struct nfs4_sequence_res seq_res;
1296 unsigned int status;
1297 };
1298
1299 struct nfs41_free_stateid_args {
1300 struct nfs4_sequence_args seq_args;
1301 nfs4_stateid stateid;
1302 };
1303
1304 struct nfs41_free_stateid_res {
1305 struct nfs4_sequence_res seq_res;
1306 unsigned int status;
1307 };
1308
1309 static inline void
1310 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
1311 {
1312 kfree(cinfo->buckets);
1313 }
1314
1315 #else
1316
1317 struct pnfs_ds_commit_info {
1318 };
1319
1320 static inline void
1321 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
1322 {
1323 }
1324
1325 #endif /* CONFIG_NFS_V4_1 */
1326
1327 #ifdef CONFIG_NFS_V4_2
1328 struct nfs42_falloc_args {
1329 struct nfs4_sequence_args seq_args;
1330
1331 struct nfs_fh *falloc_fh;
1332 nfs4_stateid falloc_stateid;
1333 u64 falloc_offset;
1334 u64 falloc_length;
1335 const u32 *falloc_bitmask;
1336 };
1337
1338 struct nfs42_falloc_res {
1339 struct nfs4_sequence_res seq_res;
1340 unsigned int status;
1341
1342 struct nfs_fattr *falloc_fattr;
1343 const struct nfs_server *falloc_server;
1344 };
1345
1346 struct nfs42_seek_args {
1347 struct nfs4_sequence_args seq_args;
1348
1349 struct nfs_fh *sa_fh;
1350 nfs4_stateid sa_stateid;
1351 u64 sa_offset;
1352 u32 sa_what;
1353 };
1354
1355 struct nfs42_seek_res {
1356 struct nfs4_sequence_res seq_res;
1357 unsigned int status;
1358
1359 u32 sr_eof;
1360 u64 sr_offset;
1361 };
1362 #endif
1363
1364 struct nfs_page;
1365
1366 #define NFS_PAGEVEC_SIZE (8U)
1367
1368 struct nfs_page_array {
1369 struct page **pagevec;
1370 unsigned int npages; /* Max length of pagevec */
1371 struct page *page_array[NFS_PAGEVEC_SIZE];
1372 };
1373
1374 /* used as flag bits in nfs_pgio_header */
1375 enum {
1376 NFS_IOHDR_ERROR = 0,
1377 NFS_IOHDR_EOF,
1378 NFS_IOHDR_REDO,
1379 NFS_IOHDR_STAT,
1380 };
1381
1382 struct nfs_pgio_header {
1383 struct inode *inode;
1384 struct rpc_cred *cred;
1385 struct list_head pages;
1386 struct nfs_page *req;
1387 struct nfs_writeverf verf; /* Used for writes */
1388 struct pnfs_layout_segment *lseg;
1389 loff_t io_start;
1390 const struct rpc_call_ops *mds_ops;
1391 void (*release) (struct nfs_pgio_header *hdr);
1392 const struct nfs_pgio_completion_ops *completion_ops;
1393 const struct nfs_rw_ops *rw_ops;
1394 struct nfs_direct_req *dreq;
1395 void *layout_private;
1396 spinlock_t lock;
1397 /* fields protected by lock */
1398 int pnfs_error;
1399 int error; /* merge with pnfs_error */
1400 unsigned long good_bytes; /* boundary of good data */
1401 unsigned long flags;
1402
1403 /*
1404 * rpc data
1405 */
1406 struct rpc_task task;
1407 struct nfs_fattr fattr;
1408 struct nfs_pgio_args args; /* argument struct */
1409 struct nfs_pgio_res res; /* result struct */
1410 unsigned long timestamp; /* For lease renewal */
1411 int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *);
1412 __u64 mds_offset; /* Filelayout dense stripe */
1413 struct nfs_page_array page_array;
1414 struct nfs_client *ds_clp; /* pNFS data server */
1415 int ds_commit_idx; /* ds index if ds_clp is set */
1416 int pgio_mirror_idx;/* mirror index in pgio layer */
1417 };
1418
1419 struct nfs_mds_commit_info {
1420 atomic_t rpcs_out;
1421 unsigned long ncommit;
1422 struct list_head list;
1423 };
1424
1425 struct nfs_commit_info;
1426 struct nfs_commit_data;
1427 struct nfs_inode;
1428 struct nfs_commit_completion_ops {
1429 void (*completion) (struct nfs_commit_data *data);
1430 void (*resched_write) (struct nfs_commit_info *, struct nfs_page *);
1431 };
1432
1433 struct nfs_commit_info {
1434 spinlock_t *lock; /* inode->i_lock */
1435 struct nfs_mds_commit_info *mds;
1436 struct pnfs_ds_commit_info *ds;
1437 struct nfs_direct_req *dreq; /* O_DIRECT request */
1438 const struct nfs_commit_completion_ops *completion_ops;
1439 };
1440
1441 struct nfs_commit_data {
1442 struct rpc_task task;
1443 struct inode *inode;
1444 struct rpc_cred *cred;
1445 struct nfs_fattr fattr;
1446 struct nfs_writeverf verf;
1447 struct list_head pages; /* Coalesced requests we wish to flush */
1448 struct list_head list; /* lists of struct nfs_write_data */
1449 struct nfs_direct_req *dreq; /* O_DIRECT request */
1450 struct nfs_commitargs args; /* argument struct */
1451 struct nfs_commitres res; /* result struct */
1452 struct nfs_open_context *context;
1453 struct pnfs_layout_segment *lseg;
1454 struct nfs_client *ds_clp; /* pNFS data server */
1455 int ds_commit_index;
1456 loff_t lwb;
1457 const struct rpc_call_ops *mds_ops;
1458 const struct nfs_commit_completion_ops *completion_ops;
1459 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
1460 unsigned long flags;
1461 };
1462
1463 struct nfs_pgio_completion_ops {
1464 void (*error_cleanup)(struct list_head *head);
1465 void (*init_hdr)(struct nfs_pgio_header *hdr);
1466 void (*completion)(struct nfs_pgio_header *hdr);
1467 void (*reschedule_io)(struct nfs_pgio_header *hdr);
1468 };
1469
1470 struct nfs_unlinkdata {
1471 struct hlist_node list;
1472 struct nfs_removeargs args;
1473 struct nfs_removeres res;
1474 struct inode *dir;
1475 struct rpc_cred *cred;
1476 struct nfs_fattr dir_attr;
1477 long timeout;
1478 };
1479
1480 struct nfs_renamedata {
1481 struct nfs_renameargs args;
1482 struct nfs_renameres res;
1483 struct rpc_cred *cred;
1484 struct inode *old_dir;
1485 struct dentry *old_dentry;
1486 struct nfs_fattr old_fattr;
1487 struct inode *new_dir;
1488 struct dentry *new_dentry;
1489 struct nfs_fattr new_fattr;
1490 void (*complete)(struct rpc_task *, struct nfs_renamedata *);
1491 long timeout;
1492 };
1493
1494 struct nfs_access_entry;
1495 struct nfs_client;
1496 struct rpc_timeout;
1497 struct nfs_subversion;
1498 struct nfs_mount_info;
1499 struct nfs_client_initdata;
1500 struct nfs_pageio_descriptor;
1501
1502 /*
1503 * RPC procedure vector for NFSv2/NFSv3 demuxing
1504 */
1505 struct nfs_rpc_ops {
1506 u32 version; /* Protocol version */
1507 const struct dentry_operations *dentry_ops;
1508 const struct inode_operations *dir_inode_ops;
1509 const struct inode_operations *file_inode_ops;
1510 const struct file_operations *file_ops;
1511
1512 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1513 struct nfs_fsinfo *);
1514 struct vfsmount *(*submount) (struct nfs_server *, struct dentry *,
1515 struct nfs_fh *, struct nfs_fattr *);
1516 struct dentry *(*try_mount) (int, const char *, struct nfs_mount_info *,
1517 struct nfs_subversion *);
1518 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1519 struct nfs_fattr *, struct nfs4_label *);
1520 int (*setattr) (struct dentry *, struct nfs_fattr *,
1521 struct iattr *);
1522 int (*lookup) (struct inode *, struct qstr *,
1523 struct nfs_fh *, struct nfs_fattr *,
1524 struct nfs4_label *);
1525 int (*access) (struct inode *, struct nfs_access_entry *);
1526 int (*readlink)(struct inode *, struct page *, unsigned int,
1527 unsigned int);
1528 int (*create) (struct inode *, struct dentry *,
1529 struct iattr *, int);
1530 int (*remove) (struct inode *, struct qstr *);
1531 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1532 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
1533 int (*unlink_done) (struct rpc_task *, struct inode *);
1534 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1535 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
1536 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1537 int (*link) (struct inode *, struct inode *, struct qstr *);
1538 int (*symlink) (struct inode *, struct dentry *, struct page *,
1539 unsigned int, struct iattr *);
1540 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1541 int (*rmdir) (struct inode *, struct qstr *);
1542 int (*readdir) (struct dentry *, struct rpc_cred *,
1543 u64, struct page **, unsigned int, int);
1544 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1545 dev_t);
1546 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1547 struct nfs_fsstat *);
1548 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1549 struct nfs_fsinfo *);
1550 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1551 struct nfs_pathconf *);
1552 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1553 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1554 int (*pgio_rpc_prepare)(struct rpc_task *,
1555 struct nfs_pgio_header *);
1556 void (*read_setup)(struct nfs_pgio_header *, struct rpc_message *);
1557 int (*read_done)(struct rpc_task *, struct nfs_pgio_header *);
1558 void (*write_setup)(struct nfs_pgio_header *, struct rpc_message *);
1559 int (*write_done)(struct rpc_task *, struct nfs_pgio_header *);
1560 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *);
1561 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
1562 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *);
1563 int (*lock)(struct file *, int, struct file_lock *);
1564 int (*lock_check_bounds)(const struct file_lock *);
1565 void (*clear_acl_cache)(struct inode *);
1566 void (*close_context)(struct nfs_open_context *ctx, int);
1567 struct inode * (*open_context) (struct inode *dir,
1568 struct nfs_open_context *ctx,
1569 int open_flags,
1570 struct iattr *iattr,
1571 int *);
1572 int (*have_delegation)(struct inode *, fmode_t);
1573 int (*return_delegation)(struct inode *);
1574 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *);
1575 struct nfs_client *
1576 (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1577 const char *);
1578 void (*free_client) (struct nfs_client *);
1579 struct nfs_server *(*create_server)(struct nfs_mount_info *, struct nfs_subversion *);
1580 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *,
1581 struct nfs_fattr *, rpc_authflavor_t);
1582 };
1583
1584 /*
1585 * NFS_CALL(getattr, inode, (fattr));
1586 * into
1587 * NFS_PROTO(inode)->getattr(fattr);
1588 */
1589 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1590
1591 /*
1592 * Function vectors etc. for the NFS client
1593 */
1594 extern const struct nfs_rpc_ops nfs_v2_clientops;
1595 extern const struct nfs_rpc_ops nfs_v3_clientops;
1596 extern const struct nfs_rpc_ops nfs_v4_clientops;
1597 extern const struct rpc_version nfs_version2;
1598 extern const struct rpc_version nfs_version3;
1599 extern const struct rpc_version nfs_version4;
1600
1601 extern const struct rpc_version nfsacl_version3;
1602 extern const struct rpc_program nfsacl_program;
1603
1604 #endif
CRIS linux kernel tree