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CommitLineData
1da177e4
LT
1#ifndef _LINUX_NFS_XDR_H
2#define _LINUX_NFS_XDR_H
3
b7fa0554 4#include <linux/nfsacl.h>
d7031582 5#include <linux/nfs3.h>
5a5ea0d4 6#include <linux/sunrpc/gss_api.h>
1da177e4 7
40859d7e
CL
8/*
9 * To change the maximum rsize and wsize supported by the NFS client, adjust
10 * NFS_MAX_FILE_IO_SIZE. 64KB is a typical maximum, but some servers can
11 * support a megabyte or more. The default is left at 4096 bytes, which is
12 * reasonable for NFS over UDP.
13 */
14#define NFS_MAX_FILE_IO_SIZE (1048576U)
15#define NFS_DEF_FILE_IO_SIZE (4096U)
16#define NFS_MIN_FILE_IO_SIZE (1024U)
17
5a5ea0d4
BS
18/* Forward declaration for NFS v3 */
19struct nfs4_secinfo_flavors;
20
8b4bdcf8
TM
21struct nfs_fsid {
22 uint64_t major;
23 uint64_t minor;
1da177e4
LT
24};
25
8b4bdcf8
TM
26/*
27 * Helper for checking equality between 2 fsids.
28 */
29static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b)
30{
31 return a->major == b->major && a->minor == b->minor;
32}
33
1da177e4 34struct nfs_fattr {
9e6e70f8 35 unsigned int valid; /* which fields are valid */
bca79478 36 umode_t mode;
1da177e4
LT
37 __u32 nlink;
38 __u32 uid;
39 __u32 gid;
9fa8d66f 40 dev_t rdev;
1da177e4
LT
41 __u64 size;
42 union {
43 struct {
44 __u32 blocksize;
45 __u32 blocks;
46 } nfs2;
47 struct {
48 __u64 used;
49 } nfs3;
50 } du;
8b4bdcf8 51 struct nfs_fsid fsid;
1da177e4 52 __u64 fileid;
28331a46 53 __u64 mounted_on_fileid;
1da177e4
LT
54 struct timespec atime;
55 struct timespec mtime;
56 struct timespec ctime;
1da177e4
LT
57 __u64 change_attr; /* NFSv4 change attribute */
58 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */
1ca277d8
TM
59 __u64 pre_size; /* pre_op_attr.size */
60 struct timespec pre_mtime; /* pre_op_attr.mtime */
61 struct timespec pre_ctime; /* pre_op_attr.ctime */
33801147 62 unsigned long time_start;
4704f0e2 63 unsigned long gencount;
1da177e4
LT
64};
65
9e6e70f8
TM
66#define NFS_ATTR_FATTR_TYPE (1U << 0)
67#define NFS_ATTR_FATTR_MODE (1U << 1)
68#define NFS_ATTR_FATTR_NLINK (1U << 2)
69#define NFS_ATTR_FATTR_OWNER (1U << 3)
70#define NFS_ATTR_FATTR_GROUP (1U << 4)
71#define NFS_ATTR_FATTR_RDEV (1U << 5)
72#define NFS_ATTR_FATTR_SIZE (1U << 6)
73#define NFS_ATTR_FATTR_PRESIZE (1U << 7)
74#define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8)
75#define NFS_ATTR_FATTR_SPACE_USED (1U << 9)
76#define NFS_ATTR_FATTR_FSID (1U << 10)
77#define NFS_ATTR_FATTR_FILEID (1U << 11)
78#define NFS_ATTR_FATTR_ATIME (1U << 12)
79#define NFS_ATTR_FATTR_MTIME (1U << 13)
80#define NFS_ATTR_FATTR_CTIME (1U << 14)
81#define NFS_ATTR_FATTR_PREMTIME (1U << 15)
82#define NFS_ATTR_FATTR_PRECTIME (1U << 16)
83#define NFS_ATTR_FATTR_CHANGE (1U << 17)
84#define NFS_ATTR_FATTR_PRECHANGE (1U << 18)
85#define NFS_ATTR_FATTR_V4_REFERRAL (1U << 19) /* NFSv4 referral */
7ebb9315 86#define NFS_ATTR_FATTR_MOUNTPOINT (1U << 20) /* Treat as mountpoint */
28331a46 87#define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 21)
9e6e70f8
TM
88
89#define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
90 | NFS_ATTR_FATTR_MODE \
91 | NFS_ATTR_FATTR_NLINK \
92 | NFS_ATTR_FATTR_OWNER \
93 | NFS_ATTR_FATTR_GROUP \
94 | NFS_ATTR_FATTR_RDEV \
95 | NFS_ATTR_FATTR_SIZE \
96 | NFS_ATTR_FATTR_FSID \
97 | NFS_ATTR_FATTR_FILEID \
98 | NFS_ATTR_FATTR_ATIME \
99 | NFS_ATTR_FATTR_MTIME \
100 | NFS_ATTR_FATTR_CTIME)
101#define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
102 | NFS_ATTR_FATTR_BLOCKS_USED)
103#define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
104 | NFS_ATTR_FATTR_SPACE_USED)
105#define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
106 | NFS_ATTR_FATTR_SPACE_USED \
107 | NFS_ATTR_FATTR_CHANGE)
1da177e4
LT
108
109/*
110 * Info on the file system
111 */
112struct nfs_fsinfo {
113 struct nfs_fattr *fattr; /* Post-op attributes */
114 __u32 rtmax; /* max. read transfer size */
115 __u32 rtpref; /* pref. read transfer size */
116 __u32 rtmult; /* reads should be multiple of this */
117 __u32 wtmax; /* max. write transfer size */
118 __u32 wtpref; /* pref. write transfer size */
119 __u32 wtmult; /* writes should be multiple of this */
120 __u32 dtpref; /* pref. readdir transfer size */
121 __u64 maxfilesize;
6b96724e 122 struct timespec time_delta; /* server time granularity */
1da177e4 123 __u32 lease_time; /* in seconds */
504913fb 124 __u32 layouttype; /* supported pnfs layout driver */
dae100c2 125 __u32 blksize; /* preferred pnfs io block size */
1da177e4
LT
126};
127
128struct nfs_fsstat {
129 struct nfs_fattr *fattr; /* Post-op attributes */
130 __u64 tbytes; /* total size in bytes */
131 __u64 fbytes; /* # of free bytes */
132 __u64 abytes; /* # of bytes available to user */
133 __u64 tfiles; /* # of files */
134 __u64 ffiles; /* # of free files */
135 __u64 afiles; /* # of files available to user */
136};
137
138struct nfs2_fsstat {
139 __u32 tsize; /* Server transfer size */
140 __u32 bsize; /* Filesystem block size */
141 __u32 blocks; /* No. of "bsize" blocks on filesystem */
142 __u32 bfree; /* No. of free "bsize" blocks */
143 __u32 bavail; /* No. of available "bsize" blocks */
144};
145
146struct nfs_pathconf {
147 struct nfs_fattr *fattr; /* Post-op attributes */
148 __u32 max_link; /* max # of hard links */
149 __u32 max_namelen; /* max name length */
150};
151
152struct nfs4_change_info {
153 u32 atomic;
154 u64 before;
155 u64 after;
156};
157
cee54fc9 158struct nfs_seqid;
9ff71c3a 159
557134a3
AA
160/* nfs41 sessions channel attributes */
161struct nfs4_channel_attrs {
557134a3
AA
162 u32 max_rqst_sz;
163 u32 max_resp_sz;
164 u32 max_resp_sz_cached;
165 u32 max_ops;
166 u32 max_reqs;
167};
168
169/* nfs41 sessions slot seqid */
170struct nfs4_slot {
171 u32 seq_nr;
172};
173
9ff71c3a 174struct nfs4_sequence_args {
f3752975 175 struct nfs4_session *sa_session;
fbcd4abc
AA
176 u8 sa_slotid;
177 u8 sa_cache_this;
9ff71c3a
BH
178};
179
180struct nfs4_sequence_res {
f3752975 181 struct nfs4_session *sr_session;
dfb4f309 182 struct nfs4_slot *sr_slot; /* slot used to send request */
fbcd4abc 183 int sr_status; /* sequence operation status */
a01878aa 184 unsigned long sr_renewal_time;
0629e370 185 u32 sr_status_flags;
9ff71c3a
BH
186};
187
2050f0cc
AA
188struct nfs4_get_lease_time_args {
189 struct nfs4_sequence_args la_seq_args;
190};
191
192struct nfs4_get_lease_time_res {
193 struct nfs_fsinfo *lr_fsinfo;
194 struct nfs4_sequence_res lr_seq_res;
195};
196
b1f69b75
AA
197#define PNFS_LAYOUT_MAXSIZE 4096
198
199struct nfs4_layoutdriver_data {
35124a09
WAA
200 struct page **pages;
201 __u32 pglen;
b1f69b75 202 __u32 len;
b1f69b75
AA
203};
204
205struct pnfs_layout_range {
206 u32 iomode;
207 u64 offset;
208 u64 length;
209};
210
211struct nfs4_layoutget_args {
212 __u32 type;
213 struct pnfs_layout_range range;
214 __u64 minlength;
215 __u32 maxcount;
216 struct inode *inode;
217 struct nfs_open_context *ctx;
218 struct nfs4_sequence_args seq_args;
cf7d63f1 219 nfs4_stateid stateid;
35124a09 220 struct nfs4_layoutdriver_data layout;
b1f69b75
AA
221};
222
223struct nfs4_layoutget_res {
224 __u32 return_on_close;
225 struct pnfs_layout_range range;
226 __u32 type;
227 nfs4_stateid stateid;
b1f69b75 228 struct nfs4_sequence_res seq_res;
35124a09 229 struct nfs4_layoutdriver_data *layoutp;
b1f69b75
AA
230};
231
232struct nfs4_layoutget {
233 struct nfs4_layoutget_args args;
234 struct nfs4_layoutget_res res;
235 struct pnfs_layout_segment **lsegpp;
a75b9df9 236 gfp_t gfp_flags;
b1f69b75
AA
237};
238
7f11d8d3
AA
239struct nfs4_getdevicelist_args {
240 const struct nfs_fh *fh;
241 u32 layoutclass;
242 struct nfs4_sequence_args seq_args;
243};
244
245struct nfs4_getdevicelist_res {
246 struct pnfs_devicelist *devlist;
247 struct nfs4_sequence_res seq_res;
248};
249
b1f69b75
AA
250struct nfs4_getdeviceinfo_args {
251 struct pnfs_device *pdev;
252 struct nfs4_sequence_args seq_args;
253};
254
255struct nfs4_getdeviceinfo_res {
256 struct pnfs_device *pdev;
257 struct nfs4_sequence_res seq_res;
258};
259
863a3c6c
AA
260struct nfs4_layoutcommit_args {
261 nfs4_stateid stateid;
262 __u64 lastbytewritten;
263 struct inode *inode;
264 const u32 *bitmask;
265 struct nfs4_sequence_args seq_args;
266};
267
268struct nfs4_layoutcommit_res {
269 struct nfs_fattr *fattr;
270 const struct nfs_server *server;
271 struct nfs4_sequence_res seq_res;
db29c089 272 int status;
863a3c6c
AA
273};
274
275struct nfs4_layoutcommit_data {
276 struct rpc_task task;
277 struct nfs_fattr fattr;
a9bae566 278 struct list_head lseg_list;
863a3c6c
AA
279 struct rpc_cred *cred;
280 struct nfs4_layoutcommit_args args;
281 struct nfs4_layoutcommit_res res;
282};
283
cbe82603 284struct nfs4_layoutreturn_args {
a56aaa02 285 struct pnfs_layout_hdr *layout;
cbe82603
BH
286 struct inode *inode;
287 nfs4_stateid stateid;
a56aaa02 288 __u32 layout_type;
cbe82603
BH
289 struct nfs4_sequence_args seq_args;
290};
291
292struct nfs4_layoutreturn_res {
293 struct nfs4_sequence_res seq_res;
294 u32 lrs_present;
295 nfs4_stateid stateid;
296};
297
298struct nfs4_layoutreturn {
299 struct nfs4_layoutreturn_args args;
300 struct nfs4_layoutreturn_res res;
301 struct rpc_cred *cred;
302 struct nfs_client *clp;
303 int rpc_status;
304};
305
1da177e4
LT
306/*
307 * Arguments to the open call.
308 */
309struct nfs_openargs {
310 const struct nfs_fh * fh;
cee54fc9 311 struct nfs_seqid * seqid;
1da177e4 312 int open_flags;
dc0b027d 313 fmode_t fmode;
1da177e4 314 __u64 clientid;
9f958ab8 315 __u64 id;
1da177e4 316 union {
d77d76ff
TM
317 struct {
318 struct iattr * attrs; /* UNCHECKED, GUARDED */
319 nfs4_verifier verifier; /* EXCLUSIVE */
320 };
1da177e4 321 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
bd7bf9d5 322 fmode_t delegation_type; /* CLAIM_PREVIOUS */
1da177e4
LT
323 } u;
324 const struct qstr * name;
325 const struct nfs_server *server; /* Needed for ID mapping */
326 const u32 * bitmask;
327 __u32 claim;
9ff71c3a 328 struct nfs4_sequence_args seq_args;
1da177e4
LT
329};
330
331struct nfs_openres {
332 nfs4_stateid stateid;
333 struct nfs_fh fh;
334 struct nfs4_change_info cinfo;
335 __u32 rflags;
336 struct nfs_fattr * f_attr;
56ae19f3 337 struct nfs_fattr * dir_attr;
c1d51931 338 struct nfs_seqid * seqid;
1da177e4 339 const struct nfs_server *server;
bd7bf9d5 340 fmode_t delegation_type;
1da177e4
LT
341 nfs4_stateid delegation;
342 __u32 do_recall;
343 __u64 maxsize;
aa53ed54 344 __u32 attrset[NFS4_BITMAP_SIZE];
9ff71c3a 345 struct nfs4_sequence_res seq_res;
1da177e4
LT
346};
347
348/*
349 * Arguments to the open_confirm call.
350 */
351struct nfs_open_confirmargs {
352 const struct nfs_fh * fh;
cdd4e68b 353 nfs4_stateid * stateid;
cee54fc9 354 struct nfs_seqid * seqid;
1da177e4
LT
355};
356
357struct nfs_open_confirmres {
358 nfs4_stateid stateid;
c1d51931 359 struct nfs_seqid * seqid;
1da177e4
LT
360};
361
362/*
363 * Arguments to the close call.
364 */
365struct nfs_closeargs {
366 struct nfs_fh * fh;
9512135d 367 nfs4_stateid * stateid;
cee54fc9 368 struct nfs_seqid * seqid;
dc0b027d 369 fmode_t fmode;
516a6af6 370 const u32 * bitmask;
9ff71c3a 371 struct nfs4_sequence_args seq_args;
1da177e4
LT
372};
373
374struct nfs_closeres {
375 nfs4_stateid stateid;
516a6af6 376 struct nfs_fattr * fattr;
c1d51931 377 struct nfs_seqid * seqid;
516a6af6 378 const struct nfs_server *server;
9ff71c3a 379 struct nfs4_sequence_res seq_res;
1da177e4
LT
380};
381/*
382 * * Arguments to the lock,lockt, and locku call.
383 * */
384struct nfs_lowner {
911d1aaf 385 __u64 clientid;
9f958ab8 386 __u64 id;
d035c36c 387 dev_t s_dev;
1da177e4
LT
388};
389
911d1aaf
TM
390struct nfs_lock_args {
391 struct nfs_fh * fh;
392 struct file_lock * fl;
cee54fc9 393 struct nfs_seqid * lock_seqid;
06735b34
TM
394 nfs4_stateid * lock_stateid;
395 struct nfs_seqid * open_seqid;
396 nfs4_stateid * open_stateid;
911d1aaf
TM
397 struct nfs_lowner lock_owner;
398 unsigned char block : 1;
399 unsigned char reclaim : 1;
400 unsigned char new_lock_owner : 1;
9ff71c3a 401 struct nfs4_sequence_args seq_args;
911d1aaf
TM
402};
403
404struct nfs_lock_res {
c1d51931
TM
405 nfs4_stateid stateid;
406 struct nfs_seqid * lock_seqid;
407 struct nfs_seqid * open_seqid;
9ff71c3a 408 struct nfs4_sequence_res seq_res;
1da177e4
LT
409};
410
911d1aaf
TM
411struct nfs_locku_args {
412 struct nfs_fh * fh;
413 struct file_lock * fl;
cee54fc9 414 struct nfs_seqid * seqid;
faf5f49c 415 nfs4_stateid * stateid;
9ff71c3a 416 struct nfs4_sequence_args seq_args;
1da177e4
LT
417};
418
911d1aaf 419struct nfs_locku_res {
c1d51931
TM
420 nfs4_stateid stateid;
421 struct nfs_seqid * seqid;
9ff71c3a 422 struct nfs4_sequence_res seq_res;
1da177e4
LT
423};
424
911d1aaf
TM
425struct nfs_lockt_args {
426 struct nfs_fh * fh;
427 struct file_lock * fl;
428 struct nfs_lowner lock_owner;
9ff71c3a 429 struct nfs4_sequence_args seq_args;
1da177e4
LT
430};
431
911d1aaf
TM
432struct nfs_lockt_res {
433 struct file_lock * denied; /* LOCK, LOCKT failed */
9ff71c3a 434 struct nfs4_sequence_res seq_res;
1da177e4
LT
435};
436
d3c7b7cc
TM
437struct nfs_release_lockowner_args {
438 struct nfs_lowner lock_owner;
439};
440
1da177e4
LT
441struct nfs4_delegreturnargs {
442 const struct nfs_fh *fhandle;
443 const nfs4_stateid *stateid;
fa178f29 444 const u32 * bitmask;
9ff71c3a 445 struct nfs4_sequence_args seq_args;
fa178f29
TM
446};
447
448struct nfs4_delegreturnres {
449 struct nfs_fattr * fattr;
450 const struct nfs_server *server;
9ff71c3a 451 struct nfs4_sequence_res seq_res;
1da177e4
LT
452};
453
454/*
455 * Arguments to the read call.
456 */
1da177e4
LT
457struct nfs_readargs {
458 struct nfs_fh * fh;
459 struct nfs_open_context *context;
f11ac8db 460 struct nfs_lock_context *lock_context;
1da177e4
LT
461 __u64 offset;
462 __u32 count;
463 unsigned int pgbase;
464 struct page ** pages;
9ff71c3a 465 struct nfs4_sequence_args seq_args;
1da177e4
LT
466};
467
468struct nfs_readres {
469 struct nfs_fattr * fattr;
470 __u32 count;
471 int eof;
9ff71c3a 472 struct nfs4_sequence_res seq_res;
1da177e4
LT
473};
474
475/*
476 * Arguments to the write call.
477 */
1da177e4
LT
478struct nfs_writeargs {
479 struct nfs_fh * fh;
480 struct nfs_open_context *context;
f11ac8db 481 struct nfs_lock_context *lock_context;
1da177e4
LT
482 __u64 offset;
483 __u32 count;
484 enum nfs3_stable_how stable;
485 unsigned int pgbase;
486 struct page ** pages;
4f9838c7 487 const u32 * bitmask;
9ff71c3a 488 struct nfs4_sequence_args seq_args;
1da177e4
LT
489};
490
491struct nfs_writeverf {
492 enum nfs3_stable_how committed;
bc4785cd 493 __be32 verifier[2];
1da177e4
LT
494};
495
496struct nfs_writeres {
497 struct nfs_fattr * fattr;
498 struct nfs_writeverf * verf;
499 __u32 count;
4f9838c7 500 const struct nfs_server *server;
9ff71c3a 501 struct nfs4_sequence_res seq_res;
1da177e4
LT
502};
503
4fdc17b2
TM
504/*
505 * Common arguments to the unlink call
506 */
507struct nfs_removeargs {
508 const struct nfs_fh *fh;
509 struct qstr name;
510 const u32 * bitmask;
9ff71c3a 511 struct nfs4_sequence_args seq_args;
4fdc17b2
TM
512};
513
514struct nfs_removeres {
515 const struct nfs_server *server;
d346890b 516 struct nfs_fattr *dir_attr;
4fdc17b2 517 struct nfs4_change_info cinfo;
9ff71c3a 518 struct nfs4_sequence_res seq_res;
4fdc17b2
TM
519};
520
920769f0
JL
521/*
522 * Common arguments to the rename call
523 */
524struct nfs_renameargs {
525 const struct nfs_fh *old_dir;
526 const struct nfs_fh *new_dir;
527 const struct qstr *old_name;
528 const struct qstr *new_name;
529 const u32 *bitmask;
530 struct nfs4_sequence_args seq_args;
531};
532
e8582a8b
JL
533struct nfs_renameres {
534 const struct nfs_server *server;
535 struct nfs4_change_info old_cinfo;
536 struct nfs_fattr *old_fattr;
537 struct nfs4_change_info new_cinfo;
538 struct nfs_fattr *new_fattr;
539 struct nfs4_sequence_res seq_res;
540};
541
1da177e4
LT
542/*
543 * Argument struct for decode_entry function
544 */
545struct nfs_entry {
546 __u64 ino;
547 __u64 cookie,
548 prev_cookie;
549 const char * name;
550 unsigned int len;
551 int eof;
552 struct nfs_fh * fh;
553 struct nfs_fattr * fattr;
0b26a0bf 554 unsigned char d_type;
573c4e1e 555 struct nfs_server * server;
1da177e4
LT
556};
557
558/*
559 * The following types are for NFSv2 only.
560 */
561struct nfs_sattrargs {
562 struct nfs_fh * fh;
563 struct iattr * sattr;
564};
565
566struct nfs_diropargs {
567 struct nfs_fh * fh;
568 const char * name;
569 unsigned int len;
570};
571
572struct nfs_createargs {
573 struct nfs_fh * fh;
574 const char * name;
575 unsigned int len;
576 struct iattr * sattr;
577};
578
1da177e4
LT
579struct nfs_setattrargs {
580 struct nfs_fh * fh;
581 nfs4_stateid stateid;
582 struct iattr * iap;
583 const struct nfs_server * server; /* Needed for name mapping */
584 const u32 * bitmask;
9ff71c3a 585 struct nfs4_sequence_args seq_args;
1da177e4
LT
586};
587
23ec6965
BF
588struct nfs_setaclargs {
589 struct nfs_fh * fh;
590 size_t acl_len;
591 unsigned int acl_pgbase;
592 struct page ** acl_pages;
9ff71c3a 593 struct nfs4_sequence_args seq_args;
23ec6965
BF
594};
595
73c403a9
BH
596struct nfs_setaclres {
597 struct nfs4_sequence_res seq_res;
598};
599
029d105e
BF
600struct nfs_getaclargs {
601 struct nfs_fh * fh;
602 size_t acl_len;
603 unsigned int acl_pgbase;
604 struct page ** acl_pages;
9ff71c3a 605 struct nfs4_sequence_args seq_args;
029d105e
BF
606};
607
663c79b3
BH
608struct nfs_getaclres {
609 size_t acl_len;
610 struct nfs4_sequence_res seq_res;
611};
612
1da177e4
LT
613struct nfs_setattrres {
614 struct nfs_fattr * fattr;
615 const struct nfs_server * server;
9ff71c3a 616 struct nfs4_sequence_res seq_res;
1da177e4
LT
617};
618
619struct nfs_linkargs {
620 struct nfs_fh * fromfh;
621 struct nfs_fh * tofh;
622 const char * toname;
623 unsigned int tolen;
624};
625
626struct nfs_symlinkargs {
627 struct nfs_fh * fromfh;
628 const char * fromname;
629 unsigned int fromlen;
94a6d753
CL
630 struct page ** pages;
631 unsigned int pathlen;
1da177e4
LT
632 struct iattr * sattr;
633};
634
635struct nfs_readdirargs {
636 struct nfs_fh * fh;
637 __u32 cookie;
638 unsigned int count;
639 struct page ** pages;
640};
641
b7fa0554
AG
642struct nfs3_getaclargs {
643 struct nfs_fh * fh;
644 int mask;
645 struct page ** pages;
646};
647
648struct nfs3_setaclargs {
649 struct inode * inode;
650 int mask;
651 struct posix_acl * acl_access;
652 struct posix_acl * acl_default;
ae46141f
TM
653 size_t len;
654 unsigned int npages;
b7fa0554
AG
655 struct page ** pages;
656};
657
1da177e4
LT
658struct nfs_diropok {
659 struct nfs_fh * fh;
660 struct nfs_fattr * fattr;
661};
662
663struct nfs_readlinkargs {
664 struct nfs_fh * fh;
665 unsigned int pgbase;
666 unsigned int pglen;
667 struct page ** pages;
668};
669
670struct nfs3_sattrargs {
671 struct nfs_fh * fh;
672 struct iattr * sattr;
673 unsigned int guard;
674 struct timespec guardtime;
675};
676
677struct nfs3_diropargs {
678 struct nfs_fh * fh;
679 const char * name;
680 unsigned int len;
681};
682
683struct nfs3_accessargs {
684 struct nfs_fh * fh;
685 __u32 access;
686};
687
688struct nfs3_createargs {
689 struct nfs_fh * fh;
690 const char * name;
691 unsigned int len;
692 struct iattr * sattr;
693 enum nfs3_createmode createmode;
bc4785cd 694 __be32 verifier[2];
1da177e4
LT
695};
696
697struct nfs3_mkdirargs {
698 struct nfs_fh * fh;
699 const char * name;
700 unsigned int len;
701 struct iattr * sattr;
702};
703
704struct nfs3_symlinkargs {
705 struct nfs_fh * fromfh;
706 const char * fromname;
707 unsigned int fromlen;
94a6d753
CL
708 struct page ** pages;
709 unsigned int pathlen;
1da177e4
LT
710 struct iattr * sattr;
711};
712
713struct nfs3_mknodargs {
714 struct nfs_fh * fh;
715 const char * name;
716 unsigned int len;
717 enum nfs3_ftype type;
718 struct iattr * sattr;
719 dev_t rdev;
720};
721
1da177e4
LT
722struct nfs3_linkargs {
723 struct nfs_fh * fromfh;
724 struct nfs_fh * tofh;
725 const char * toname;
726 unsigned int tolen;
727};
728
729struct nfs3_readdirargs {
730 struct nfs_fh * fh;
731 __u64 cookie;
bc4785cd 732 __be32 verf[2];
1da177e4
LT
733 int plus;
734 unsigned int count;
735 struct page ** pages;
736};
737
738struct nfs3_diropres {
739 struct nfs_fattr * dir_attr;
740 struct nfs_fh * fh;
741 struct nfs_fattr * fattr;
742};
743
744struct nfs3_accessres {
745 struct nfs_fattr * fattr;
746 __u32 access;
747};
748
749struct nfs3_readlinkargs {
750 struct nfs_fh * fh;
751 unsigned int pgbase;
752 unsigned int pglen;
753 struct page ** pages;
754};
755
1da177e4
LT
756struct nfs3_linkres {
757 struct nfs_fattr * dir_attr;
758 struct nfs_fattr * fattr;
759};
760
761struct nfs3_readdirres {
762 struct nfs_fattr * dir_attr;
bc4785cd 763 __be32 * verf;
1da177e4
LT
764 int plus;
765};
766
b7fa0554
AG
767struct nfs3_getaclres {
768 struct nfs_fattr * fattr;
769 int mask;
770 unsigned int acl_access_count;
771 unsigned int acl_default_count;
772 struct posix_acl * acl_access;
773 struct posix_acl * acl_default;
774};
775
655b1612
BH
776struct nfs4_string {
777 unsigned int len;
778 char *data;
779};
780
1da177e4
LT
781#ifdef CONFIG_NFS_V4
782
783typedef u64 clientid4;
784
785struct nfs4_accessargs {
786 const struct nfs_fh * fh;
76b32999 787 const u32 * bitmask;
1da177e4 788 u32 access;
9ff71c3a 789 struct nfs4_sequence_args seq_args;
1da177e4
LT
790};
791
792struct nfs4_accessres {
76b32999
TM
793 const struct nfs_server * server;
794 struct nfs_fattr * fattr;
1da177e4
LT
795 u32 supported;
796 u32 access;
9ff71c3a 797 struct nfs4_sequence_res seq_res;
1da177e4
LT
798};
799
800struct nfs4_create_arg {
801 u32 ftype;
802 union {
94a6d753
CL
803 struct {
804 struct page ** pages;
805 unsigned int len;
806 } symlink; /* NF4LNK */
1da177e4
LT
807 struct {
808 u32 specdata1;
809 u32 specdata2;
810 } device; /* NF4BLK, NF4CHR */
811 } u;
812 const struct qstr * name;
813 const struct nfs_server * server;
814 const struct iattr * attrs;
815 const struct nfs_fh * dir_fh;
816 const u32 * bitmask;
9ff71c3a 817 struct nfs4_sequence_args seq_args;
1da177e4
LT
818};
819
820struct nfs4_create_res {
821 const struct nfs_server * server;
822 struct nfs_fh * fh;
823 struct nfs_fattr * fattr;
824 struct nfs4_change_info dir_cinfo;
56ae19f3 825 struct nfs_fattr * dir_fattr;
9ff71c3a 826 struct nfs4_sequence_res seq_res;
1da177e4
LT
827};
828
829struct nfs4_fsinfo_arg {
830 const struct nfs_fh * fh;
831 const u32 * bitmask;
9ff71c3a 832 struct nfs4_sequence_args seq_args;
1da177e4
LT
833};
834
3dda5e43
BH
835struct nfs4_fsinfo_res {
836 struct nfs_fsinfo *fsinfo;
837 struct nfs4_sequence_res seq_res;
838};
839
1da177e4
LT
840struct nfs4_getattr_arg {
841 const struct nfs_fh * fh;
842 const u32 * bitmask;
9ff71c3a 843 struct nfs4_sequence_args seq_args;
1da177e4
LT
844};
845
846struct nfs4_getattr_res {
847 const struct nfs_server * server;
848 struct nfs_fattr * fattr;
9ff71c3a 849 struct nfs4_sequence_res seq_res;
1da177e4
LT
850};
851
852struct nfs4_link_arg {
853 const struct nfs_fh * fh;
854 const struct nfs_fh * dir_fh;
855 const struct qstr * name;
91ba2eee 856 const u32 * bitmask;
9ff71c3a 857 struct nfs4_sequence_args seq_args;
91ba2eee
TM
858};
859
860struct nfs4_link_res {
861 const struct nfs_server * server;
862 struct nfs_fattr * fattr;
863 struct nfs4_change_info cinfo;
864 struct nfs_fattr * dir_attr;
9ff71c3a 865 struct nfs4_sequence_res seq_res;
1da177e4
LT
866};
867
91ba2eee 868
1da177e4
LT
869struct nfs4_lookup_arg {
870 const struct nfs_fh * dir_fh;
871 const struct qstr * name;
872 const u32 * bitmask;
9ff71c3a 873 struct nfs4_sequence_args seq_args;
1da177e4
LT
874};
875
876struct nfs4_lookup_res {
877 const struct nfs_server * server;
878 struct nfs_fattr * fattr;
879 struct nfs_fh * fh;
9ff71c3a 880 struct nfs4_sequence_res seq_res;
1da177e4
LT
881};
882
883struct nfs4_lookup_root_arg {
884 const u32 * bitmask;
9ff71c3a 885 struct nfs4_sequence_args seq_args;
1da177e4
LT
886};
887
888struct nfs4_pathconf_arg {
889 const struct nfs_fh * fh;
890 const u32 * bitmask;
9ff71c3a 891 struct nfs4_sequence_args seq_args;
1da177e4
LT
892};
893
d45b2989
BH
894struct nfs4_pathconf_res {
895 struct nfs_pathconf *pathconf;
896 struct nfs4_sequence_res seq_res;
897};
898
1da177e4
LT
899struct nfs4_readdir_arg {
900 const struct nfs_fh * fh;
901 u64 cookie;
902 nfs4_verifier verifier;
903 u32 count;
904 struct page ** pages; /* zero-copy data */
905 unsigned int pgbase; /* zero-copy data */
906 const u32 * bitmask;
82f2e547 907 int plus;
9ff71c3a 908 struct nfs4_sequence_args seq_args;
1da177e4
LT
909};
910
911struct nfs4_readdir_res {
912 nfs4_verifier verifier;
913 unsigned int pgbase;
9ff71c3a 914 struct nfs4_sequence_res seq_res;
1da177e4
LT
915};
916
917struct nfs4_readlink {
918 const struct nfs_fh * fh;
919 unsigned int pgbase;
920 unsigned int pglen; /* zero-copy data */
921 struct page ** pages; /* zero-copy data */
9ff71c3a 922 struct nfs4_sequence_args seq_args;
1da177e4
LT
923};
924
f50c7000
BH
925struct nfs4_readlink_res {
926 struct nfs4_sequence_res seq_res;
927};
928
19d771f3 929#define NFS4_SETCLIENTID_NAMELEN (127)
1da177e4 930struct nfs4_setclientid {
cc38bac3 931 const nfs4_verifier * sc_verifier;
1da177e4 932 unsigned int sc_name_len;
d1ce02e1 933 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
cc38bac3 934 u32 sc_prog;
1da177e4 935 unsigned int sc_netid_len;
d1ce02e1 936 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
1da177e4 937 unsigned int sc_uaddr_len;
d1ce02e1 938 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
cc38bac3 939 u32 sc_cb_ident;
1da177e4
LT
940};
941
bb8b27e5
TM
942struct nfs4_setclientid_res {
943 u64 clientid;
944 nfs4_verifier confirm;
945};
946
1da177e4
LT
947struct nfs4_statfs_arg {
948 const struct nfs_fh * fh;
949 const u32 * bitmask;
9ff71c3a 950 struct nfs4_sequence_args seq_args;
1da177e4
LT
951};
952
24ad148a
BH
953struct nfs4_statfs_res {
954 struct nfs_fsstat *fsstat;
955 struct nfs4_sequence_res seq_res;
956};
957
43652ad5
BH
958struct nfs4_server_caps_arg {
959 struct nfs_fh *fhandle;
960 struct nfs4_sequence_args seq_args;
961};
962
1da177e4 963struct nfs4_server_caps_res {
dae100c2 964 u32 attr_bitmask[3];
1da177e4
LT
965 u32 acl_bitmask;
966 u32 has_links;
967 u32 has_symlinks;
9ff71c3a 968 struct nfs4_sequence_res seq_res;
1da177e4
LT
969};
970
7aaa0b3b
MN
971#define NFS4_PATHNAME_MAXCOMPONENTS 512
972struct nfs4_pathname {
973 unsigned int ncomponents;
974 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
975};
976
977#define NFS4_FS_LOCATION_MAXSERVERS 10
978struct nfs4_fs_location {
979 unsigned int nservers;
980 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
981 struct nfs4_pathname rootpath;
982};
983
984#define NFS4_FS_LOCATIONS_MAXENTRIES 10
985struct nfs4_fs_locations {
683b57b4
TM
986 struct nfs_fattr fattr;
987 const struct nfs_server *server;
7aaa0b3b 988 struct nfs4_pathname fs_path;
683b57b4 989 int nlocations;
7aaa0b3b 990 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
683b57b4
TM
991};
992
993struct nfs4_fs_locations_arg {
994 const struct nfs_fh *dir_fh;
995 const struct qstr *name;
996 struct page *page;
997 const u32 *bitmask;
9ff71c3a 998 struct nfs4_sequence_args seq_args;
683b57b4
TM
999};
1000
22958463
BH
1001struct nfs4_fs_locations_res {
1002 struct nfs4_fs_locations *fs_locations;
1003 struct nfs4_sequence_res seq_res;
1004};
1005
5a5ea0d4
BS
1006struct nfs4_secinfo_oid {
1007 unsigned int len;
1008 char data[GSS_OID_MAX_LEN];
1009};
1010
1011struct nfs4_secinfo_gss {
1012 struct nfs4_secinfo_oid sec_oid4;
1013 unsigned int qop4;
1014 unsigned int service;
1015};
1016
1017struct nfs4_secinfo_flavor {
1018 unsigned int flavor;
1019 struct nfs4_secinfo_gss gss;
1020};
1021
1022struct nfs4_secinfo_flavors {
1023 unsigned int num_flavors;
1024 struct nfs4_secinfo_flavor flavors[0];
1025};
1026
1027struct nfs4_secinfo_arg {
1028 const struct nfs_fh *dir_fh;
1029 const struct qstr *name;
1030 struct nfs4_sequence_args seq_args;
1031};
1032
1033struct nfs4_secinfo_res {
1034 struct nfs4_secinfo_flavors *flavors;
1035 struct nfs4_sequence_res seq_res;
1036};
1037
1da177e4
LT
1038#endif /* CONFIG_NFS_V4 */
1039
99fe60d0
BH
1040struct nfstime4 {
1041 u64 seconds;
1042 u32 nseconds;
1043};
1044
1045#ifdef CONFIG_NFS_V4_1
1046struct nfs_impl_id4 {
1047 u32 domain_len;
1048 char *domain;
1049 u32 name_len;
1050 char *name;
1051 struct nfstime4 date;
1052};
1053
1054#define NFS4_EXCHANGE_ID_LEN (48)
1055struct nfs41_exchange_id_args {
1056 struct nfs_client *client;
1057 nfs4_verifier *verifier;
1058 unsigned int id_len;
1059 char id[NFS4_EXCHANGE_ID_LEN];
1060 u32 flags;
1061};
1062
1063struct server_owner {
1064 uint64_t minor_id;
1065 uint32_t major_id_sz;
1066 char major_id[NFS4_OPAQUE_LIMIT];
1067};
1068
1069struct server_scope {
1070 uint32_t server_scope_sz;
1071 char server_scope[NFS4_OPAQUE_LIMIT];
1072};
1073
1074struct nfs41_exchange_id_res {
1075 struct nfs_client *client;
1076 u32 flags;
78fe0f41 1077 struct server_scope *server_scope;
99fe60d0 1078};
fc931582
AA
1079
1080struct nfs41_create_session_args {
1081 struct nfs_client *client;
1082 uint32_t flags;
1083 uint32_t cb_program;
1084 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1085 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1086};
1087
1088struct nfs41_create_session_res {
1089 struct nfs_client *client;
1090};
18019753
RL
1091
1092struct nfs41_reclaim_complete_args {
1093 /* In the future extend to include curr_fh for use with migration */
1094 unsigned char one_fs:1;
1095 struct nfs4_sequence_args seq_args;
1096};
1097
1098struct nfs41_reclaim_complete_res {
1099 struct nfs4_sequence_res seq_res;
1100};
fca78d6d
BS
1101
1102#define SECINFO_STYLE_CURRENT_FH 0
1103#define SECINFO_STYLE_PARENT 1
1104struct nfs41_secinfo_no_name_args {
1105 int style;
1106 struct nfs4_sequence_args seq_args;
1107};
1108
7d974794
BS
1109struct nfs41_test_stateid_args {
1110 nfs4_stateid *stateid;
1111 struct nfs4_sequence_args seq_args;
1112};
1113
1114struct nfs41_test_stateid_res {
1115 unsigned int status;
1116 struct nfs4_sequence_res seq_res;
1117};
1118
9aeda35f
BS
1119struct nfs41_free_stateid_args {
1120 nfs4_stateid *stateid;
1121 struct nfs4_sequence_args seq_args;
1122};
1123
1124struct nfs41_free_stateid_res {
1125 unsigned int status;
1126 struct nfs4_sequence_res seq_res;
1127};
1128
99fe60d0
BH
1129#endif /* CONFIG_NFS_V4_1 */
1130
1da177e4
LT
1131struct nfs_page;
1132
40859d7e
CL
1133#define NFS_PAGEVEC_SIZE (8U)
1134
1da177e4 1135struct nfs_read_data {
1da177e4
LT
1136 struct rpc_task task;
1137 struct inode *inode;
1138 struct rpc_cred *cred;
1139 struct nfs_fattr fattr; /* fattr storage */
1140 struct list_head pages; /* Coalesced read requests */
6e4efd56 1141 struct list_head list; /* lists of struct nfs_read_data */
1da177e4 1142 struct nfs_page *req; /* multi ops per nfs_page */
40859d7e 1143 struct page **pagevec;
e9f7bee1 1144 unsigned int npages; /* Max length of pagevec */
1da177e4
LT
1145 struct nfs_readargs args;
1146 struct nfs_readres res;
1da177e4 1147 unsigned long timestamp; /* For lease renewal */
bae724ef 1148 struct pnfs_layout_segment *lseg;
d83217c1 1149 struct nfs_client *ds_clp; /* pNFS data server */
64419a9b 1150 const struct rpc_call_ops *mds_ops;
cbdabc7f 1151 int (*read_done_cb) (struct rpc_task *task, struct nfs_read_data *data);
dc70d7b3 1152 __u64 mds_offset;
d20581aa 1153 int pnfs_error;
0d0b5cb3 1154 struct page *page_array[NFS_PAGEVEC_SIZE];
1da177e4
LT
1155};
1156
1157struct nfs_write_data {
1da177e4
LT
1158 struct rpc_task task;
1159 struct inode *inode;
1160 struct rpc_cred *cred;
1161 struct nfs_fattr fattr;
1162 struct nfs_writeverf verf;
1163 struct list_head pages; /* Coalesced requests we wish to flush */
6e4efd56 1164 struct list_head list; /* lists of struct nfs_write_data */
1da177e4 1165 struct nfs_page *req; /* multi ops per nfs_page */
40859d7e 1166 struct page **pagevec;
e9f7bee1 1167 unsigned int npages; /* Max length of pagevec */
1da177e4
LT
1168 struct nfs_writeargs args; /* argument struct */
1169 struct nfs_writeres res; /* result struct */
5053aa56 1170 struct pnfs_layout_segment *lseg;
a69aef14 1171 struct nfs_client *ds_clp; /* pNFS data server */
e0c2b380 1172 int ds_commit_index;
0382b744 1173 const struct rpc_call_ops *mds_ops;
b029bc9b 1174 int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data);
1da177e4
LT
1175#ifdef CONFIG_NFS_V4
1176 unsigned long timestamp; /* For lease renewal */
1177#endif
a69aef14 1178 __u64 mds_offset; /* Filelayout dense stripe */
d20581aa 1179 int pnfs_error;
0d0b5cb3 1180 struct page *page_array[NFS_PAGEVEC_SIZE];
1da177e4
LT
1181};
1182
1183struct nfs_access_entry;
45a52a02 1184struct nfs_client;
e0dca7a0 1185struct rpc_timeout;
1da177e4
LT
1186
1187/*
1188 * RPC procedure vector for NFSv2/NFSv3 demuxing
1189 */
1190struct nfs_rpc_ops {
c0e07cb6 1191 u32 version; /* Protocol version */
f786aa90 1192 const struct dentry_operations *dentry_ops;
c5ef1c42
AV
1193 const struct inode_operations *dir_inode_ops;
1194 const struct inode_operations *file_inode_ops;
1da177e4
LT
1195
1196 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1197 struct nfs_fsinfo *);
1198 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1199 struct nfs_fattr *);
1200 int (*setattr) (struct dentry *, struct nfs_fattr *,
1201 struct iattr *);
7c513058 1202 int (*lookup) (struct rpc_clnt *clnt, struct inode *, struct qstr *,
1da177e4
LT
1203 struct nfs_fh *, struct nfs_fattr *);
1204 int (*access) (struct inode *, struct nfs_access_entry *);
1205 int (*readlink)(struct inode *, struct page *, unsigned int,
1206 unsigned int);
1da177e4 1207 int (*create) (struct inode *, struct dentry *,
c0204fd2 1208 struct iattr *, int, struct nfs_open_context *);
1da177e4 1209 int (*remove) (struct inode *, struct qstr *);
e4eff1a6
TM
1210 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1211 int (*unlink_done) (struct rpc_task *, struct inode *);
1da177e4
LT
1212 int (*rename) (struct inode *, struct qstr *,
1213 struct inode *, struct qstr *);
d3d4152a
JL
1214 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1215 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1da177e4 1216 int (*link) (struct inode *, struct inode *, struct qstr *);
94a6d753
CL
1217 int (*symlink) (struct inode *, struct dentry *, struct page *,
1218 unsigned int, struct iattr *);
1da177e4
LT
1219 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1220 int (*rmdir) (struct inode *, struct qstr *);
1221 int (*readdir) (struct dentry *, struct rpc_cred *,
56e4ebf8 1222 u64, struct page **, unsigned int, int);
1da177e4
LT
1223 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1224 dev_t);
1225 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1226 struct nfs_fsstat *);
1227 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1228 struct nfs_fsinfo *);
1229 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1230 struct nfs_pathconf *);
e9326dca 1231 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
573c4e1e 1232 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
bdc7f021 1233 void (*read_setup) (struct nfs_read_data *, struct rpc_message *);
ec06c096 1234 int (*read_done) (struct rpc_task *, struct nfs_read_data *);
bdc7f021 1235 void (*write_setup) (struct nfs_write_data *, struct rpc_message *);
788e7a89 1236 int (*write_done) (struct rpc_task *, struct nfs_write_data *);
bdc7f021 1237 void (*commit_setup) (struct nfs_write_data *, struct rpc_message *);
788e7a89 1238 int (*commit_done) (struct rpc_task *, struct nfs_write_data *);
1da177e4 1239 int (*lock)(struct file *, int, struct file_lock *);
2116271a 1240 int (*lock_check_bounds)(const struct file_lock *);
ada70d94 1241 void (*clear_acl_cache)(struct inode *);
7fe5c398 1242 void (*close_context)(struct nfs_open_context *ctx, int);
2b484297
TM
1243 struct inode * (*open_context) (struct inode *dir,
1244 struct nfs_open_context *ctx,
1245 int open_flags,
1246 struct iattr *iattr);
45a52a02
AA
1247 int (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1248 const char *, rpc_authflavor_t, int);
5a5ea0d4 1249 int (*secinfo)(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *);
1da177e4
LT
1250};
1251
1252/*
1253 * NFS_CALL(getattr, inode, (fattr));
1254 * into
1255 * NFS_PROTO(inode)->getattr(fattr);
1256 */
1257#define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1258
1259/*
1260 * Function vectors etc. for the NFS client
1261 */
509de811
DH
1262extern const struct nfs_rpc_ops nfs_v2_clientops;
1263extern const struct nfs_rpc_ops nfs_v3_clientops;
1264extern const struct nfs_rpc_ops nfs_v4_clientops;
1da177e4
LT
1265extern struct rpc_version nfs_version2;
1266extern struct rpc_version nfs_version3;
1267extern struct rpc_version nfs_version4;
1268
b7fa0554
AG
1269extern struct rpc_version nfsacl_version3;
1270extern struct rpc_program nfsacl_program;
1271
1da177e4 1272#endif