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spi-topcliff-pch: Fix issue for transmitting over 4KByte
[zen-stable.git] / include / linux / nfs_xdr.h
blobd6ba9a12591ea464991b1d36157918ee5fc1eebe
1 #ifndef _LINUX_NFS_XDR_H
2 #define _LINUX_NFS_XDR_H
3
4 #include <linux/nfsacl.h>
5 #include <linux/nfs3.h>
6 #include <linux/sunrpc/gss_api.h>
7
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
18 /* Forward declaration for NFS v3 */
19 struct nfs4_secinfo_flavors;
20
21 struct nfs4_string {
22 unsigned int len;
23 char *data;
24 };
25
26 struct nfs_fsid {
27 uint64_t major;
28 uint64_t minor;
29 };
30
31 /*
32 * Helper for checking equality between 2 fsids.
33 */
34 static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b)
35 {
36 return a->major == b->major && a->minor == b->minor;
37 }
38
39 struct nfs_fattr {
40 unsigned int valid; /* which fields are valid */
41 umode_t mode;
42 __u32 nlink;
43 __u32 uid;
44 __u32 gid;
45 dev_t rdev;
46 __u64 size;
47 union {
48 struct {
49 __u32 blocksize;
50 __u32 blocks;
51 } nfs2;
52 struct {
53 __u64 used;
54 } nfs3;
55 } du;
56 struct nfs_fsid fsid;
57 __u64 fileid;
58 __u64 mounted_on_fileid;
59 struct timespec atime;
60 struct timespec mtime;
61 struct timespec ctime;
62 __u64 change_attr; /* NFSv4 change attribute */
63 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */
64 __u64 pre_size; /* pre_op_attr.size */
65 struct timespec pre_mtime; /* pre_op_attr.mtime */
66 struct timespec pre_ctime; /* pre_op_attr.ctime */
67 unsigned long time_start;
68 unsigned long gencount;
69 struct nfs4_string *owner_name;
70 struct nfs4_string *group_name;
71 };
72
73 #define NFS_ATTR_FATTR_TYPE (1U << 0)
74 #define NFS_ATTR_FATTR_MODE (1U << 1)
75 #define NFS_ATTR_FATTR_NLINK (1U << 2)
76 #define NFS_ATTR_FATTR_OWNER (1U << 3)
77 #define NFS_ATTR_FATTR_GROUP (1U << 4)
78 #define NFS_ATTR_FATTR_RDEV (1U << 5)
79 #define NFS_ATTR_FATTR_SIZE (1U << 6)
80 #define NFS_ATTR_FATTR_PRESIZE (1U << 7)
81 #define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8)
82 #define NFS_ATTR_FATTR_SPACE_USED (1U << 9)
83 #define NFS_ATTR_FATTR_FSID (1U << 10)
84 #define NFS_ATTR_FATTR_FILEID (1U << 11)
85 #define NFS_ATTR_FATTR_ATIME (1U << 12)
86 #define NFS_ATTR_FATTR_MTIME (1U << 13)
87 #define NFS_ATTR_FATTR_CTIME (1U << 14)
88 #define NFS_ATTR_FATTR_PREMTIME (1U << 15)
89 #define NFS_ATTR_FATTR_PRECTIME (1U << 16)
90 #define NFS_ATTR_FATTR_CHANGE (1U << 17)
91 #define NFS_ATTR_FATTR_PRECHANGE (1U << 18)
92 #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 19) /* NFSv4 referral */
93 #define NFS_ATTR_FATTR_MOUNTPOINT (1U << 20) /* Treat as mountpoint */
94 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 21)
95 #define NFS_ATTR_FATTR_OWNER_NAME (1U << 22)
96 #define NFS_ATTR_FATTR_GROUP_NAME (1U << 23)
97
98 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
99 | NFS_ATTR_FATTR_MODE \
100 | NFS_ATTR_FATTR_NLINK \
101 | NFS_ATTR_FATTR_OWNER \
102 | NFS_ATTR_FATTR_GROUP \
103 | NFS_ATTR_FATTR_RDEV \
104 | NFS_ATTR_FATTR_SIZE \
105 | NFS_ATTR_FATTR_FSID \
106 | NFS_ATTR_FATTR_FILEID \
107 | NFS_ATTR_FATTR_ATIME \
108 | NFS_ATTR_FATTR_MTIME \
109 | NFS_ATTR_FATTR_CTIME)
110 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
111 | NFS_ATTR_FATTR_BLOCKS_USED)
112 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
113 | NFS_ATTR_FATTR_SPACE_USED)
114 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
115 | NFS_ATTR_FATTR_SPACE_USED \
116 | NFS_ATTR_FATTR_CHANGE)
117
118 /*
119 * Info on the file system
120 */
121 struct nfs_fsinfo {
122 struct nfs_fattr *fattr; /* Post-op attributes */
123 __u32 rtmax; /* max. read transfer size */
124 __u32 rtpref; /* pref. read transfer size */
125 __u32 rtmult; /* reads should be multiple of this */
126 __u32 wtmax; /* max. write transfer size */
127 __u32 wtpref; /* pref. write transfer size */
128 __u32 wtmult; /* writes should be multiple of this */
129 __u32 dtpref; /* pref. readdir transfer size */
130 __u64 maxfilesize;
131 struct timespec time_delta; /* server time granularity */
132 __u32 lease_time; /* in seconds */
133 __u32 layouttype; /* supported pnfs layout driver */
134 __u32 blksize; /* preferred pnfs io block size */
135 };
136
137 struct nfs_fsstat {
138 struct nfs_fattr *fattr; /* Post-op attributes */
139 __u64 tbytes; /* total size in bytes */
140 __u64 fbytes; /* # of free bytes */
141 __u64 abytes; /* # of bytes available to user */
142 __u64 tfiles; /* # of files */
143 __u64 ffiles; /* # of free files */
144 __u64 afiles; /* # of files available to user */
145 };
146
147 struct nfs2_fsstat {
148 __u32 tsize; /* Server transfer size */
149 __u32 bsize; /* Filesystem block size */
150 __u32 blocks; /* No. of "bsize" blocks on filesystem */
151 __u32 bfree; /* No. of free "bsize" blocks */
152 __u32 bavail; /* No. of available "bsize" blocks */
153 };
154
155 struct nfs_pathconf {
156 struct nfs_fattr *fattr; /* Post-op attributes */
157 __u32 max_link; /* max # of hard links */
158 __u32 max_namelen; /* max name length */
159 };
160
161 struct nfs4_change_info {
162 u32 atomic;
163 u64 before;
164 u64 after;
165 };
166
167 struct nfs_seqid;
168
169 /* nfs41 sessions channel attributes */
170 struct nfs4_channel_attrs {
171 u32 max_rqst_sz;
172 u32 max_resp_sz;
173 u32 max_resp_sz_cached;
174 u32 max_ops;
175 u32 max_reqs;
176 };
177
178 /* nfs41 sessions slot seqid */
179 struct nfs4_slot {
180 u32 seq_nr;
181 };
182
183 struct nfs4_sequence_args {
184 struct nfs4_session *sa_session;
185 u8 sa_slotid;
186 u8 sa_cache_this;
187 };
188
189 struct nfs4_sequence_res {
190 struct nfs4_session *sr_session;
191 struct nfs4_slot *sr_slot; /* slot used to send request */
192 int sr_status; /* sequence operation status */
193 unsigned long sr_renewal_time;
194 u32 sr_status_flags;
195 };
196
197 struct nfs4_get_lease_time_args {
198 struct nfs4_sequence_args la_seq_args;
199 };
200
201 struct nfs4_get_lease_time_res {
202 struct nfs_fsinfo *lr_fsinfo;
203 struct nfs4_sequence_res lr_seq_res;
204 };
205
206 #define PNFS_LAYOUT_MAXSIZE 4096
207
208 struct nfs4_layoutdriver_data {
209 struct page **pages;
210 __u32 pglen;
211 __u32 len;
212 };
213
214 struct pnfs_layout_range {
215 u32 iomode;
216 u64 offset;
217 u64 length;
218 };
219
220 struct nfs4_layoutget_args {
221 __u32 type;
222 struct pnfs_layout_range range;
223 __u64 minlength;
224 __u32 maxcount;
225 struct inode *inode;
226 struct nfs_open_context *ctx;
227 struct nfs4_sequence_args seq_args;
228 nfs4_stateid stateid;
229 struct nfs4_layoutdriver_data layout;
230 };
231
232 struct nfs4_layoutget_res {
233 __u32 return_on_close;
234 struct pnfs_layout_range range;
235 __u32 type;
236 nfs4_stateid stateid;
237 struct nfs4_sequence_res seq_res;
238 struct nfs4_layoutdriver_data *layoutp;
239 };
240
241 struct nfs4_layoutget {
242 struct nfs4_layoutget_args args;
243 struct nfs4_layoutget_res res;
244 struct pnfs_layout_segment **lsegpp;
245 gfp_t gfp_flags;
246 };
247
248 struct nfs4_getdevicelist_args {
249 const struct nfs_fh *fh;
250 u32 layoutclass;
251 struct nfs4_sequence_args seq_args;
252 };
253
254 struct nfs4_getdevicelist_res {
255 struct pnfs_devicelist *devlist;
256 struct nfs4_sequence_res seq_res;
257 };
258
259 struct nfs4_getdeviceinfo_args {
260 struct pnfs_device *pdev;
261 struct nfs4_sequence_args seq_args;
262 };
263
264 struct nfs4_getdeviceinfo_res {
265 struct pnfs_device *pdev;
266 struct nfs4_sequence_res seq_res;
267 };
268
269 struct nfs4_layoutcommit_args {
270 nfs4_stateid stateid;
271 __u64 lastbytewritten;
272 struct inode *inode;
273 const u32 *bitmask;
274 struct nfs4_sequence_args seq_args;
275 };
276
277 struct nfs4_layoutcommit_res {
278 struct nfs_fattr *fattr;
279 const struct nfs_server *server;
280 struct nfs4_sequence_res seq_res;
281 int status;
282 };
283
284 struct nfs4_layoutcommit_data {
285 struct rpc_task task;
286 struct nfs_fattr fattr;
287 struct list_head lseg_list;
288 struct rpc_cred *cred;
289 struct nfs4_layoutcommit_args args;
290 struct nfs4_layoutcommit_res res;
291 };
292
293 struct nfs4_layoutreturn_args {
294 struct pnfs_layout_hdr *layout;
295 struct inode *inode;
296 nfs4_stateid stateid;
297 __u32 layout_type;
298 struct nfs4_sequence_args seq_args;
299 };
300
301 struct nfs4_layoutreturn_res {
302 struct nfs4_sequence_res seq_res;
303 u32 lrs_present;
304 nfs4_stateid stateid;
305 };
306
307 struct nfs4_layoutreturn {
308 struct nfs4_layoutreturn_args args;
309 struct nfs4_layoutreturn_res res;
310 struct rpc_cred *cred;
311 struct nfs_client *clp;
312 int rpc_status;
313 };
314
315 /*
316 * Arguments to the open call.
317 */
318 struct nfs_openargs {
319 const struct nfs_fh * fh;
320 struct nfs_seqid * seqid;
321 int open_flags;
322 fmode_t fmode;
323 __u64 clientid;
324 __u64 id;
325 union {
326 struct {
327 struct iattr * attrs; /* UNCHECKED, GUARDED */
328 nfs4_verifier verifier; /* EXCLUSIVE */
329 };
330 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
331 fmode_t delegation_type; /* CLAIM_PREVIOUS */
332 } u;
333 const struct qstr * name;
334 const struct nfs_server *server; /* Needed for ID mapping */
335 const u32 * bitmask;
336 const u32 * dir_bitmask;
337 __u32 claim;
338 struct nfs4_sequence_args seq_args;
339 };
340
341 struct nfs_openres {
342 nfs4_stateid stateid;
343 struct nfs_fh fh;
344 struct nfs4_change_info cinfo;
345 __u32 rflags;
346 struct nfs_fattr * f_attr;
347 struct nfs_fattr * dir_attr;
348 struct nfs_seqid * seqid;
349 const struct nfs_server *server;
350 fmode_t delegation_type;
351 nfs4_stateid delegation;
352 __u32 do_recall;
353 __u64 maxsize;
354 __u32 attrset[NFS4_BITMAP_SIZE];
355 struct nfs4_string *owner;
356 struct nfs4_string *group_owner;
357 struct nfs4_sequence_res seq_res;
358 };
359
360 /*
361 * Arguments to the open_confirm call.
362 */
363 struct nfs_open_confirmargs {
364 const struct nfs_fh * fh;
365 nfs4_stateid * stateid;
366 struct nfs_seqid * seqid;
367 };
368
369 struct nfs_open_confirmres {
370 nfs4_stateid stateid;
371 struct nfs_seqid * seqid;
372 };
373
374 /*
375 * Arguments to the close call.
376 */
377 struct nfs_closeargs {
378 struct nfs_fh * fh;
379 nfs4_stateid * stateid;
380 struct nfs_seqid * seqid;
381 fmode_t fmode;
382 const u32 * bitmask;
383 struct nfs4_sequence_args seq_args;
384 };
385
386 struct nfs_closeres {
387 nfs4_stateid stateid;
388 struct nfs_fattr * fattr;
389 struct nfs_seqid * seqid;
390 const struct nfs_server *server;
391 struct nfs4_sequence_res seq_res;
392 };
393 /*
394 * * Arguments to the lock,lockt, and locku call.
395 * */
396 struct nfs_lowner {
397 __u64 clientid;
398 __u64 id;
399 dev_t s_dev;
400 };
401
402 struct nfs_lock_args {
403 struct nfs_fh * fh;
404 struct file_lock * fl;
405 struct nfs_seqid * lock_seqid;
406 nfs4_stateid * lock_stateid;
407 struct nfs_seqid * open_seqid;
408 nfs4_stateid * open_stateid;
409 struct nfs_lowner lock_owner;
410 unsigned char block : 1;
411 unsigned char reclaim : 1;
412 unsigned char new_lock_owner : 1;
413 struct nfs4_sequence_args seq_args;
414 };
415
416 struct nfs_lock_res {
417 nfs4_stateid stateid;
418 struct nfs_seqid * lock_seqid;
419 struct nfs_seqid * open_seqid;
420 struct nfs4_sequence_res seq_res;
421 };
422
423 struct nfs_locku_args {
424 struct nfs_fh * fh;
425 struct file_lock * fl;
426 struct nfs_seqid * seqid;
427 nfs4_stateid * stateid;
428 struct nfs4_sequence_args seq_args;
429 };
430
431 struct nfs_locku_res {
432 nfs4_stateid stateid;
433 struct nfs_seqid * seqid;
434 struct nfs4_sequence_res seq_res;
435 };
436
437 struct nfs_lockt_args {
438 struct nfs_fh * fh;
439 struct file_lock * fl;
440 struct nfs_lowner lock_owner;
441 struct nfs4_sequence_args seq_args;
442 };
443
444 struct nfs_lockt_res {
445 struct file_lock * denied; /* LOCK, LOCKT failed */
446 struct nfs4_sequence_res seq_res;
447 };
448
449 struct nfs_release_lockowner_args {
450 struct nfs_lowner lock_owner;
451 };
452
453 struct nfs4_delegreturnargs {
454 const struct nfs_fh *fhandle;
455 const nfs4_stateid *stateid;
456 const u32 * bitmask;
457 struct nfs4_sequence_args seq_args;
458 };
459
460 struct nfs4_delegreturnres {
461 struct nfs_fattr * fattr;
462 const struct nfs_server *server;
463 struct nfs4_sequence_res seq_res;
464 };
465
466 /*
467 * Arguments to the read call.
468 */
469 struct nfs_readargs {
470 struct nfs_fh * fh;
471 struct nfs_open_context *context;
472 struct nfs_lock_context *lock_context;
473 __u64 offset;
474 __u32 count;
475 unsigned int pgbase;
476 struct page ** pages;
477 struct nfs4_sequence_args seq_args;
478 };
479
480 struct nfs_readres {
481 struct nfs_fattr * fattr;
482 __u32 count;
483 int eof;
484 struct nfs4_sequence_res seq_res;
485 };
486
487 /*
488 * Arguments to the write call.
489 */
490 struct nfs_writeargs {
491 struct nfs_fh * fh;
492 struct nfs_open_context *context;
493 struct nfs_lock_context *lock_context;
494 __u64 offset;
495 __u32 count;
496 enum nfs3_stable_how stable;
497 unsigned int pgbase;
498 struct page ** pages;
499 const u32 * bitmask;
500 struct nfs4_sequence_args seq_args;
501 };
502
503 struct nfs_writeverf {
504 enum nfs3_stable_how committed;
505 __be32 verifier[2];
506 };
507
508 struct nfs_writeres {
509 struct nfs_fattr * fattr;
510 struct nfs_writeverf * verf;
511 __u32 count;
512 const struct nfs_server *server;
513 struct nfs4_sequence_res seq_res;
514 };
515
516 /*
517 * Common arguments to the unlink call
518 */
519 struct nfs_removeargs {
520 const struct nfs_fh *fh;
521 struct qstr name;
522 const u32 * bitmask;
523 struct nfs4_sequence_args seq_args;
524 };
525
526 struct nfs_removeres {
527 const struct nfs_server *server;
528 struct nfs_fattr *dir_attr;
529 struct nfs4_change_info cinfo;
530 struct nfs4_sequence_res seq_res;
531 };
532
533 /*
534 * Common arguments to the rename call
535 */
536 struct nfs_renameargs {
537 const struct nfs_fh *old_dir;
538 const struct nfs_fh *new_dir;
539 const struct qstr *old_name;
540 const struct qstr *new_name;
541 const u32 *bitmask;
542 struct nfs4_sequence_args seq_args;
543 };
544
545 struct nfs_renameres {
546 const struct nfs_server *server;
547 struct nfs4_change_info old_cinfo;
548 struct nfs_fattr *old_fattr;
549 struct nfs4_change_info new_cinfo;
550 struct nfs_fattr *new_fattr;
551 struct nfs4_sequence_res seq_res;
552 };
553
554 /*
555 * Argument struct for decode_entry function
556 */
557 struct nfs_entry {
558 __u64 ino;
559 __u64 cookie,
560 prev_cookie;
561 const char * name;
562 unsigned int len;
563 int eof;
564 struct nfs_fh * fh;
565 struct nfs_fattr * fattr;
566 unsigned char d_type;
567 struct nfs_server * server;
568 };
569
570 /*
571 * The following types are for NFSv2 only.
572 */
573 struct nfs_sattrargs {
574 struct nfs_fh * fh;
575 struct iattr * sattr;
576 };
577
578 struct nfs_diropargs {
579 struct nfs_fh * fh;
580 const char * name;
581 unsigned int len;
582 };
583
584 struct nfs_createargs {
585 struct nfs_fh * fh;
586 const char * name;
587 unsigned int len;
588 struct iattr * sattr;
589 };
590
591 struct nfs_setattrargs {
592 struct nfs_fh * fh;
593 nfs4_stateid stateid;
594 struct iattr * iap;
595 const struct nfs_server * server; /* Needed for name mapping */
596 const u32 * bitmask;
597 struct nfs4_sequence_args seq_args;
598 };
599
600 struct nfs_setaclargs {
601 struct nfs_fh * fh;
602 size_t acl_len;
603 unsigned int acl_pgbase;
604 struct page ** acl_pages;
605 struct nfs4_sequence_args seq_args;
606 };
607
608 struct nfs_setaclres {
609 struct nfs4_sequence_res seq_res;
610 };
611
612 struct nfs_getaclargs {
613 struct nfs_fh * fh;
614 size_t acl_len;
615 unsigned int acl_pgbase;
616 struct page ** acl_pages;
617 struct nfs4_sequence_args seq_args;
618 };
619
620 /* getxattr ACL interface flags */
621 #define NFS4_ACL_LEN_REQUEST 0x0001 /* zero length getxattr buffer */
622 struct nfs_getaclres {
623 size_t acl_len;
624 size_t acl_data_offset;
625 int acl_flags;
626 struct page * acl_scratch;
627 struct nfs4_sequence_res seq_res;
628 };
629
630 struct nfs_setattrres {
631 struct nfs_fattr * fattr;
632 const struct nfs_server * server;
633 struct nfs4_sequence_res seq_res;
634 };
635
636 struct nfs_linkargs {
637 struct nfs_fh * fromfh;
638 struct nfs_fh * tofh;
639 const char * toname;
640 unsigned int tolen;
641 };
642
643 struct nfs_symlinkargs {
644 struct nfs_fh * fromfh;
645 const char * fromname;
646 unsigned int fromlen;
647 struct page ** pages;
648 unsigned int pathlen;
649 struct iattr * sattr;
650 };
651
652 struct nfs_readdirargs {
653 struct nfs_fh * fh;
654 __u32 cookie;
655 unsigned int count;
656 struct page ** pages;
657 };
658
659 struct nfs3_getaclargs {
660 struct nfs_fh * fh;
661 int mask;
662 struct page ** pages;
663 };
664
665 struct nfs3_setaclargs {
666 struct inode * inode;
667 int mask;
668 struct posix_acl * acl_access;
669 struct posix_acl * acl_default;
670 size_t len;
671 unsigned int npages;
672 struct page ** pages;
673 };
674
675 struct nfs_diropok {
676 struct nfs_fh * fh;
677 struct nfs_fattr * fattr;
678 };
679
680 struct nfs_readlinkargs {
681 struct nfs_fh * fh;
682 unsigned int pgbase;
683 unsigned int pglen;
684 struct page ** pages;
685 };
686
687 struct nfs3_sattrargs {
688 struct nfs_fh * fh;
689 struct iattr * sattr;
690 unsigned int guard;
691 struct timespec guardtime;
692 };
693
694 struct nfs3_diropargs {
695 struct nfs_fh * fh;
696 const char * name;
697 unsigned int len;
698 };
699
700 struct nfs3_accessargs {
701 struct nfs_fh * fh;
702 __u32 access;
703 };
704
705 struct nfs3_createargs {
706 struct nfs_fh * fh;
707 const char * name;
708 unsigned int len;
709 struct iattr * sattr;
710 enum nfs3_createmode createmode;
711 __be32 verifier[2];
712 };
713
714 struct nfs3_mkdirargs {
715 struct nfs_fh * fh;
716 const char * name;
717 unsigned int len;
718 struct iattr * sattr;
719 };
720
721 struct nfs3_symlinkargs {
722 struct nfs_fh * fromfh;
723 const char * fromname;
724 unsigned int fromlen;
725 struct page ** pages;
726 unsigned int pathlen;
727 struct iattr * sattr;
728 };
729
730 struct nfs3_mknodargs {
731 struct nfs_fh * fh;
732 const char * name;
733 unsigned int len;
734 enum nfs3_ftype type;
735 struct iattr * sattr;
736 dev_t rdev;
737 };
738
739 struct nfs3_linkargs {
740 struct nfs_fh * fromfh;
741 struct nfs_fh * tofh;
742 const char * toname;
743 unsigned int tolen;
744 };
745
746 struct nfs3_readdirargs {
747 struct nfs_fh * fh;
748 __u64 cookie;
749 __be32 verf[2];
750 int plus;
751 unsigned int count;
752 struct page ** pages;
753 };
754
755 struct nfs3_diropres {
756 struct nfs_fattr * dir_attr;
757 struct nfs_fh * fh;
758 struct nfs_fattr * fattr;
759 };
760
761 struct nfs3_accessres {
762 struct nfs_fattr * fattr;
763 __u32 access;
764 };
765
766 struct nfs3_readlinkargs {
767 struct nfs_fh * fh;
768 unsigned int pgbase;
769 unsigned int pglen;
770 struct page ** pages;
771 };
772
773 struct nfs3_linkres {
774 struct nfs_fattr * dir_attr;
775 struct nfs_fattr * fattr;
776 };
777
778 struct nfs3_readdirres {
779 struct nfs_fattr * dir_attr;
780 __be32 * verf;
781 int plus;
782 };
783
784 struct nfs3_getaclres {
785 struct nfs_fattr * fattr;
786 int mask;
787 unsigned int acl_access_count;
788 unsigned int acl_default_count;
789 struct posix_acl * acl_access;
790 struct posix_acl * acl_default;
791 };
792
793 #ifdef CONFIG_NFS_V4
794
795 typedef u64 clientid4;
796
797 struct nfs4_accessargs {
798 const struct nfs_fh * fh;
799 const u32 * bitmask;
800 u32 access;
801 struct nfs4_sequence_args seq_args;
802 };
803
804 struct nfs4_accessres {
805 const struct nfs_server * server;
806 struct nfs_fattr * fattr;
807 u32 supported;
808 u32 access;
809 struct nfs4_sequence_res seq_res;
810 };
811
812 struct nfs4_create_arg {
813 u32 ftype;
814 union {
815 struct {
816 struct page ** pages;
817 unsigned int len;
818 } symlink; /* NF4LNK */
819 struct {
820 u32 specdata1;
821 u32 specdata2;
822 } device; /* NF4BLK, NF4CHR */
823 } u;
824 const struct qstr * name;
825 const struct nfs_server * server;
826 const struct iattr * attrs;
827 const struct nfs_fh * dir_fh;
828 const u32 * bitmask;
829 struct nfs4_sequence_args seq_args;
830 };
831
832 struct nfs4_create_res {
833 const struct nfs_server * server;
834 struct nfs_fh * fh;
835 struct nfs_fattr * fattr;
836 struct nfs4_change_info dir_cinfo;
837 struct nfs_fattr * dir_fattr;
838 struct nfs4_sequence_res seq_res;
839 };
840
841 struct nfs4_fsinfo_arg {
842 const struct nfs_fh * fh;
843 const u32 * bitmask;
844 struct nfs4_sequence_args seq_args;
845 };
846
847 struct nfs4_fsinfo_res {
848 struct nfs_fsinfo *fsinfo;
849 struct nfs4_sequence_res seq_res;
850 };
851
852 struct nfs4_getattr_arg {
853 const struct nfs_fh * fh;
854 const u32 * bitmask;
855 struct nfs4_sequence_args seq_args;
856 };
857
858 struct nfs4_getattr_res {
859 const struct nfs_server * server;
860 struct nfs_fattr * fattr;
861 struct nfs4_sequence_res seq_res;
862 };
863
864 struct nfs4_link_arg {
865 const struct nfs_fh * fh;
866 const struct nfs_fh * dir_fh;
867 const struct qstr * name;
868 const u32 * bitmask;
869 struct nfs4_sequence_args seq_args;
870 };
871
872 struct nfs4_link_res {
873 const struct nfs_server * server;
874 struct nfs_fattr * fattr;
875 struct nfs4_change_info cinfo;
876 struct nfs_fattr * dir_attr;
877 struct nfs4_sequence_res seq_res;
878 };
879
880
881 struct nfs4_lookup_arg {
882 const struct nfs_fh * dir_fh;
883 const struct qstr * name;
884 const u32 * bitmask;
885 struct nfs4_sequence_args seq_args;
886 };
887
888 struct nfs4_lookup_res {
889 const struct nfs_server * server;
890 struct nfs_fattr * fattr;
891 struct nfs_fh * fh;
892 struct nfs4_sequence_res seq_res;
893 };
894
895 struct nfs4_lookup_root_arg {
896 const u32 * bitmask;
897 struct nfs4_sequence_args seq_args;
898 };
899
900 struct nfs4_pathconf_arg {
901 const struct nfs_fh * fh;
902 const u32 * bitmask;
903 struct nfs4_sequence_args seq_args;
904 };
905
906 struct nfs4_pathconf_res {
907 struct nfs_pathconf *pathconf;
908 struct nfs4_sequence_res seq_res;
909 };
910
911 struct nfs4_readdir_arg {
912 const struct nfs_fh * fh;
913 u64 cookie;
914 nfs4_verifier verifier;
915 u32 count;
916 struct page ** pages; /* zero-copy data */
917 unsigned int pgbase; /* zero-copy data */
918 const u32 * bitmask;
919 int plus;
920 struct nfs4_sequence_args seq_args;
921 };
922
923 struct nfs4_readdir_res {
924 nfs4_verifier verifier;
925 unsigned int pgbase;
926 struct nfs4_sequence_res seq_res;
927 };
928
929 struct nfs4_readlink {
930 const struct nfs_fh * fh;
931 unsigned int pgbase;
932 unsigned int pglen; /* zero-copy data */
933 struct page ** pages; /* zero-copy data */
934 struct nfs4_sequence_args seq_args;
935 };
936
937 struct nfs4_readlink_res {
938 struct nfs4_sequence_res seq_res;
939 };
940
941 #define NFS4_SETCLIENTID_NAMELEN (127)
942 struct nfs4_setclientid {
943 const nfs4_verifier * sc_verifier;
944 unsigned int sc_name_len;
945 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
946 u32 sc_prog;
947 unsigned int sc_netid_len;
948 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
949 unsigned int sc_uaddr_len;
950 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
951 u32 sc_cb_ident;
952 };
953
954 struct nfs4_setclientid_res {
955 u64 clientid;
956 nfs4_verifier confirm;
957 };
958
959 struct nfs4_statfs_arg {
960 const struct nfs_fh * fh;
961 const u32 * bitmask;
962 struct nfs4_sequence_args seq_args;
963 };
964
965 struct nfs4_statfs_res {
966 struct nfs_fsstat *fsstat;
967 struct nfs4_sequence_res seq_res;
968 };
969
970 struct nfs4_server_caps_arg {
971 struct nfs_fh *fhandle;
972 struct nfs4_sequence_args seq_args;
973 };
974
975 struct nfs4_server_caps_res {
976 u32 attr_bitmask[3];
977 u32 acl_bitmask;
978 u32 has_links;
979 u32 has_symlinks;
980 struct nfs4_sequence_res seq_res;
981 };
982
983 #define NFS4_PATHNAME_MAXCOMPONENTS 512
984 struct nfs4_pathname {
985 unsigned int ncomponents;
986 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
987 };
988
989 #define NFS4_FS_LOCATION_MAXSERVERS 10
990 struct nfs4_fs_location {
991 unsigned int nservers;
992 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
993 struct nfs4_pathname rootpath;
994 };
995
996 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
997 struct nfs4_fs_locations {
998 struct nfs_fattr fattr;
999 const struct nfs_server *server;
1000 struct nfs4_pathname fs_path;
1001 int nlocations;
1002 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
1003 };
1004
1005 struct nfs4_fs_locations_arg {
1006 const struct nfs_fh *dir_fh;
1007 const struct qstr *name;
1008 struct page *page;
1009 const u32 *bitmask;
1010 struct nfs4_sequence_args seq_args;
1011 };
1012
1013 struct nfs4_fs_locations_res {
1014 struct nfs4_fs_locations *fs_locations;
1015 struct nfs4_sequence_res seq_res;
1016 };
1017
1018 struct nfs4_secinfo_oid {
1019 unsigned int len;
1020 char data[GSS_OID_MAX_LEN];
1021 };
1022
1023 struct nfs4_secinfo_gss {
1024 struct nfs4_secinfo_oid sec_oid4;
1025 unsigned int qop4;
1026 unsigned int service;
1027 };
1028
1029 struct nfs4_secinfo_flavor {
1030 unsigned int flavor;
1031 struct nfs4_secinfo_gss gss;
1032 };
1033
1034 struct nfs4_secinfo_flavors {
1035 unsigned int num_flavors;
1036 struct nfs4_secinfo_flavor flavors[0];
1037 };
1038
1039 struct nfs4_secinfo_arg {
1040 const struct nfs_fh *dir_fh;
1041 const struct qstr *name;
1042 struct nfs4_sequence_args seq_args;
1043 };
1044
1045 struct nfs4_secinfo_res {
1046 struct nfs4_secinfo_flavors *flavors;
1047 struct nfs4_sequence_res seq_res;
1048 };
1049
1050 #endif /* CONFIG_NFS_V4 */
1051
1052 struct nfstime4 {
1053 u64 seconds;
1054 u32 nseconds;
1055 };
1056
1057 #ifdef CONFIG_NFS_V4_1
1058 struct nfs_impl_id4 {
1059 u32 domain_len;
1060 char *domain;
1061 u32 name_len;
1062 char *name;
1063 struct nfstime4 date;
1064 };
1065
1066 #define NFS4_EXCHANGE_ID_LEN (48)
1067 struct nfs41_exchange_id_args {
1068 struct nfs_client *client;
1069 nfs4_verifier *verifier;
1070 unsigned int id_len;
1071 char id[NFS4_EXCHANGE_ID_LEN];
1072 u32 flags;
1073 };
1074
1075 struct server_owner {
1076 uint64_t minor_id;
1077 uint32_t major_id_sz;
1078 char major_id[NFS4_OPAQUE_LIMIT];
1079 };
1080
1081 struct server_scope {
1082 uint32_t server_scope_sz;
1083 char server_scope[NFS4_OPAQUE_LIMIT];
1084 };
1085
1086 struct nfs41_exchange_id_res {
1087 struct nfs_client *client;
1088 u32 flags;
1089 struct server_scope *server_scope;
1090 };
1091
1092 struct nfs41_create_session_args {
1093 struct nfs_client *client;
1094 uint32_t flags;
1095 uint32_t cb_program;
1096 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1097 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1098 };
1099
1100 struct nfs41_create_session_res {
1101 struct nfs_client *client;
1102 };
1103
1104 struct nfs41_reclaim_complete_args {
1105 /* In the future extend to include curr_fh for use with migration */
1106 unsigned char one_fs:1;
1107 struct nfs4_sequence_args seq_args;
1108 };
1109
1110 struct nfs41_reclaim_complete_res {
1111 struct nfs4_sequence_res seq_res;
1112 };
1113
1114 #define SECINFO_STYLE_CURRENT_FH 0
1115 #define SECINFO_STYLE_PARENT 1
1116 struct nfs41_secinfo_no_name_args {
1117 int style;
1118 struct nfs4_sequence_args seq_args;
1119 };
1120
1121 struct nfs41_test_stateid_args {
1122 nfs4_stateid *stateid;
1123 struct nfs4_sequence_args seq_args;
1124 };
1125
1126 struct nfs41_test_stateid_res {
1127 unsigned int status;
1128 struct nfs4_sequence_res seq_res;
1129 };
1130
1131 struct nfs41_free_stateid_args {
1132 nfs4_stateid *stateid;
1133 struct nfs4_sequence_args seq_args;
1134 };
1135
1136 struct nfs41_free_stateid_res {
1137 unsigned int status;
1138 struct nfs4_sequence_res seq_res;
1139 };
1140
1141 #endif /* CONFIG_NFS_V4_1 */
1142
1143 struct nfs_page;
1144
1145 #define NFS_PAGEVEC_SIZE (8U)
1146
1147 struct nfs_read_data {
1148 struct rpc_task task;
1149 struct inode *inode;
1150 struct rpc_cred *cred;
1151 struct nfs_fattr fattr; /* fattr storage */
1152 struct list_head pages; /* Coalesced read requests */
1153 struct list_head list; /* lists of struct nfs_read_data */
1154 struct nfs_page *req; /* multi ops per nfs_page */
1155 struct page **pagevec;
1156 unsigned int npages; /* Max length of pagevec */
1157 struct nfs_readargs args;
1158 struct nfs_readres res;
1159 unsigned long timestamp; /* For lease renewal */
1160 struct pnfs_layout_segment *lseg;
1161 struct nfs_client *ds_clp; /* pNFS data server */
1162 const struct rpc_call_ops *mds_ops;
1163 int (*read_done_cb) (struct rpc_task *task, struct nfs_read_data *data);
1164 __u64 mds_offset;
1165 int pnfs_error;
1166 struct page *page_array[NFS_PAGEVEC_SIZE];
1167 };
1168
1169 struct nfs_write_data {
1170 struct rpc_task task;
1171 struct inode *inode;
1172 struct rpc_cred *cred;
1173 struct nfs_fattr fattr;
1174 struct nfs_writeverf verf;
1175 struct list_head pages; /* Coalesced requests we wish to flush */
1176 struct list_head list; /* lists of struct nfs_write_data */
1177 struct nfs_page *req; /* multi ops per nfs_page */
1178 struct page **pagevec;
1179 unsigned int npages; /* Max length of pagevec */
1180 struct nfs_writeargs args; /* argument struct */
1181 struct nfs_writeres res; /* result struct */
1182 struct pnfs_layout_segment *lseg;
1183 struct nfs_client *ds_clp; /* pNFS data server */
1184 int ds_commit_index;
1185 const struct rpc_call_ops *mds_ops;
1186 int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data);
1187 #ifdef CONFIG_NFS_V4
1188 unsigned long timestamp; /* For lease renewal */
1189 #endif
1190 __u64 mds_offset; /* Filelayout dense stripe */
1191 int pnfs_error;
1192 struct page *page_array[NFS_PAGEVEC_SIZE];
1193 };
1194
1195 struct nfs_access_entry;
1196 struct nfs_client;
1197 struct rpc_timeout;
1198
1199 /*
1200 * RPC procedure vector for NFSv2/NFSv3 demuxing
1201 */
1202 struct nfs_rpc_ops {
1203 u32 version; /* Protocol version */
1204 const struct dentry_operations *dentry_ops;
1205 const struct inode_operations *dir_inode_ops;
1206 const struct inode_operations *file_inode_ops;
1207 const struct file_operations *file_ops;
1208
1209 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1210 struct nfs_fsinfo *);
1211 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1212 struct nfs_fattr *);
1213 int (*setattr) (struct dentry *, struct nfs_fattr *,
1214 struct iattr *);
1215 int (*lookup) (struct rpc_clnt *clnt, struct inode *, struct qstr *,
1216 struct nfs_fh *, struct nfs_fattr *);
1217 int (*access) (struct inode *, struct nfs_access_entry *);
1218 int (*readlink)(struct inode *, struct page *, unsigned int,
1219 unsigned int);
1220 int (*create) (struct inode *, struct dentry *,
1221 struct iattr *, int, struct nfs_open_context *);
1222 int (*remove) (struct inode *, struct qstr *);
1223 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1224 int (*unlink_done) (struct rpc_task *, struct inode *);
1225 int (*rename) (struct inode *, struct qstr *,
1226 struct inode *, struct qstr *);
1227 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1228 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1229 int (*link) (struct inode *, struct inode *, struct qstr *);
1230 int (*symlink) (struct inode *, struct dentry *, struct page *,
1231 unsigned int, struct iattr *);
1232 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1233 int (*rmdir) (struct inode *, struct qstr *);
1234 int (*readdir) (struct dentry *, struct rpc_cred *,
1235 u64, struct page **, unsigned int, int);
1236 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1237 dev_t);
1238 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1239 struct nfs_fsstat *);
1240 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1241 struct nfs_fsinfo *);
1242 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1243 struct nfs_pathconf *);
1244 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1245 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1246 void (*read_setup) (struct nfs_read_data *, struct rpc_message *);
1247 int (*read_done) (struct rpc_task *, struct nfs_read_data *);
1248 void (*write_setup) (struct nfs_write_data *, struct rpc_message *);
1249 int (*write_done) (struct rpc_task *, struct nfs_write_data *);
1250 void (*commit_setup) (struct nfs_write_data *, struct rpc_message *);
1251 int (*commit_done) (struct rpc_task *, struct nfs_write_data *);
1252 int (*lock)(struct file *, int, struct file_lock *);
1253 int (*lock_check_bounds)(const struct file_lock *);
1254 void (*clear_acl_cache)(struct inode *);
1255 void (*close_context)(struct nfs_open_context *ctx, int);
1256 struct inode * (*open_context) (struct inode *dir,
1257 struct nfs_open_context *ctx,
1258 int open_flags,
1259 struct iattr *iattr);
1260 int (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1261 const char *, rpc_authflavor_t, int);
1262 int (*secinfo)(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *);
1263 };
1264
1265 /*
1266 * NFS_CALL(getattr, inode, (fattr));
1267 * into
1268 * NFS_PROTO(inode)->getattr(fattr);
1269 */
1270 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1271
1272 /*
1273 * Function vectors etc. for the NFS client
1274 */
1275 extern const struct nfs_rpc_ops nfs_v2_clientops;
1276 extern const struct nfs_rpc_ops nfs_v3_clientops;
1277 extern const struct nfs_rpc_ops nfs_v4_clientops;
1278 extern struct rpc_version nfs_version2;
1279 extern struct rpc_version nfs_version3;
1280 extern struct rpc_version nfs_version4;
1281
1282 extern struct rpc_version nfsacl_version3;
1283 extern struct rpc_program nfsacl_program;
1284
1285 #endif