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hv: hyperv.h: remove unneeded forward declarations of structures
[zen-stable.git] / include / linux / nfs_xdr.h
blobabd615d74a2935bc2a1417712f7c45aa88ff1fdf
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 nfs_fsid {
22 uint64_t major;
23 uint64_t minor;
24 };
25
26 /*
27 * Helper for checking equality between 2 fsids.
28 */
29 static 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
34 struct nfs_fattr {
35 unsigned int valid; /* which fields are valid */
36 umode_t mode;
37 __u32 nlink;
38 __u32 uid;
39 __u32 gid;
40 dev_t rdev;
41 __u64 size;
42 union {
43 struct {
44 __u32 blocksize;
45 __u32 blocks;
46 } nfs2;
47 struct {
48 __u64 used;
49 } nfs3;
50 } du;
51 struct nfs_fsid fsid;
52 __u64 fileid;
53 __u64 mounted_on_fileid;
54 struct timespec atime;
55 struct timespec mtime;
56 struct timespec ctime;
57 __u64 change_attr; /* NFSv4 change attribute */
58 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */
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 */
62 unsigned long time_start;
63 unsigned long gencount;
64 };
65
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 */
86 #define NFS_ATTR_FATTR_MOUNTPOINT (1U << 20) /* Treat as mountpoint */
87 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 21)
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)
108
109 /*
110 * Info on the file system
111 */
112 struct 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;
122 struct timespec time_delta; /* server time granularity */
123 __u32 lease_time; /* in seconds */
124 __u32 layouttype; /* supported pnfs layout driver */
125 __u32 blksize; /* preferred pnfs io block size */
126 };
127
128 struct 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
138 struct 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
146 struct 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
152 struct nfs4_change_info {
153 u32 atomic;
154 u64 before;
155 u64 after;
156 };
157
158 struct nfs_seqid;
159
160 /* nfs41 sessions channel attributes */
161 struct nfs4_channel_attrs {
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 */
170 struct nfs4_slot {
171 u32 seq_nr;
172 };
173
174 struct nfs4_sequence_args {
175 struct nfs4_session *sa_session;
176 u8 sa_slotid;
177 u8 sa_cache_this;
178 };
179
180 struct nfs4_sequence_res {
181 struct nfs4_session *sr_session;
182 struct nfs4_slot *sr_slot; /* slot used to send request */
183 int sr_status; /* sequence operation status */
184 unsigned long sr_renewal_time;
185 u32 sr_status_flags;
186 };
187
188 struct nfs4_get_lease_time_args {
189 struct nfs4_sequence_args la_seq_args;
190 };
191
192 struct nfs4_get_lease_time_res {
193 struct nfs_fsinfo *lr_fsinfo;
194 struct nfs4_sequence_res lr_seq_res;
195 };
196
197 #define PNFS_LAYOUT_MAXSIZE 4096
198
199 struct nfs4_layoutdriver_data {
200 struct page **pages;
201 __u32 pglen;
202 __u32 len;
203 };
204
205 struct pnfs_layout_range {
206 u32 iomode;
207 u64 offset;
208 u64 length;
209 };
210
211 struct 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;
219 nfs4_stateid stateid;
220 struct nfs4_layoutdriver_data layout;
221 };
222
223 struct nfs4_layoutget_res {
224 __u32 return_on_close;
225 struct pnfs_layout_range range;
226 __u32 type;
227 nfs4_stateid stateid;
228 struct nfs4_sequence_res seq_res;
229 struct nfs4_layoutdriver_data *layoutp;
230 };
231
232 struct nfs4_layoutget {
233 struct nfs4_layoutget_args args;
234 struct nfs4_layoutget_res res;
235 struct pnfs_layout_segment **lsegpp;
236 gfp_t gfp_flags;
237 };
238
239 struct nfs4_getdevicelist_args {
240 const struct nfs_fh *fh;
241 u32 layoutclass;
242 struct nfs4_sequence_args seq_args;
243 };
244
245 struct nfs4_getdevicelist_res {
246 struct pnfs_devicelist *devlist;
247 struct nfs4_sequence_res seq_res;
248 };
249
250 struct nfs4_getdeviceinfo_args {
251 struct pnfs_device *pdev;
252 struct nfs4_sequence_args seq_args;
253 };
254
255 struct nfs4_getdeviceinfo_res {
256 struct pnfs_device *pdev;
257 struct nfs4_sequence_res seq_res;
258 };
259
260 struct 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
268 struct nfs4_layoutcommit_res {
269 struct nfs_fattr *fattr;
270 const struct nfs_server *server;
271 struct nfs4_sequence_res seq_res;
272 int status;
273 };
274
275 struct nfs4_layoutcommit_data {
276 struct rpc_task task;
277 struct nfs_fattr fattr;
278 struct list_head lseg_list;
279 struct rpc_cred *cred;
280 struct nfs4_layoutcommit_args args;
281 struct nfs4_layoutcommit_res res;
282 };
283
284 struct nfs4_layoutreturn_args {
285 struct pnfs_layout_hdr *layout;
286 struct inode *inode;
287 nfs4_stateid stateid;
288 __u32 layout_type;
289 struct nfs4_sequence_args seq_args;
290 };
291
292 struct nfs4_layoutreturn_res {
293 struct nfs4_sequence_res seq_res;
294 u32 lrs_present;
295 nfs4_stateid stateid;
296 };
297
298 struct 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
306 /*
307 * Arguments to the open call.
308 */
309 struct nfs_openargs {
310 const struct nfs_fh * fh;
311 struct nfs_seqid * seqid;
312 int open_flags;
313 fmode_t fmode;
314 __u64 clientid;
315 __u64 id;
316 union {
317 struct {
318 struct iattr * attrs; /* UNCHECKED, GUARDED */
319 nfs4_verifier verifier; /* EXCLUSIVE */
320 };
321 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
322 fmode_t delegation_type; /* CLAIM_PREVIOUS */
323 } u;
324 const struct qstr * name;
325 const struct nfs_server *server; /* Needed for ID mapping */
326 const u32 * bitmask;
327 __u32 claim;
328 struct nfs4_sequence_args seq_args;
329 };
330
331 struct 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;
337 struct nfs_fattr * dir_attr;
338 struct nfs_seqid * seqid;
339 const struct nfs_server *server;
340 fmode_t delegation_type;
341 nfs4_stateid delegation;
342 __u32 do_recall;
343 __u64 maxsize;
344 __u32 attrset[NFS4_BITMAP_SIZE];
345 struct nfs4_sequence_res seq_res;
346 };
347
348 /*
349 * Arguments to the open_confirm call.
350 */
351 struct nfs_open_confirmargs {
352 const struct nfs_fh * fh;
353 nfs4_stateid * stateid;
354 struct nfs_seqid * seqid;
355 };
356
357 struct nfs_open_confirmres {
358 nfs4_stateid stateid;
359 struct nfs_seqid * seqid;
360 };
361
362 /*
363 * Arguments to the close call.
364 */
365 struct nfs_closeargs {
366 struct nfs_fh * fh;
367 nfs4_stateid * stateid;
368 struct nfs_seqid * seqid;
369 fmode_t fmode;
370 const u32 * bitmask;
371 struct nfs4_sequence_args seq_args;
372 };
373
374 struct nfs_closeres {
375 nfs4_stateid stateid;
376 struct nfs_fattr * fattr;
377 struct nfs_seqid * seqid;
378 const struct nfs_server *server;
379 struct nfs4_sequence_res seq_res;
380 };
381 /*
382 * * Arguments to the lock,lockt, and locku call.
383 * */
384 struct nfs_lowner {
385 __u64 clientid;
386 __u64 id;
387 dev_t s_dev;
388 };
389
390 struct nfs_lock_args {
391 struct nfs_fh * fh;
392 struct file_lock * fl;
393 struct nfs_seqid * lock_seqid;
394 nfs4_stateid * lock_stateid;
395 struct nfs_seqid * open_seqid;
396 nfs4_stateid * open_stateid;
397 struct nfs_lowner lock_owner;
398 unsigned char block : 1;
399 unsigned char reclaim : 1;
400 unsigned char new_lock_owner : 1;
401 struct nfs4_sequence_args seq_args;
402 };
403
404 struct nfs_lock_res {
405 nfs4_stateid stateid;
406 struct nfs_seqid * lock_seqid;
407 struct nfs_seqid * open_seqid;
408 struct nfs4_sequence_res seq_res;
409 };
410
411 struct nfs_locku_args {
412 struct nfs_fh * fh;
413 struct file_lock * fl;
414 struct nfs_seqid * seqid;
415 nfs4_stateid * stateid;
416 struct nfs4_sequence_args seq_args;
417 };
418
419 struct nfs_locku_res {
420 nfs4_stateid stateid;
421 struct nfs_seqid * seqid;
422 struct nfs4_sequence_res seq_res;
423 };
424
425 struct nfs_lockt_args {
426 struct nfs_fh * fh;
427 struct file_lock * fl;
428 struct nfs_lowner lock_owner;
429 struct nfs4_sequence_args seq_args;
430 };
431
432 struct nfs_lockt_res {
433 struct file_lock * denied; /* LOCK, LOCKT failed */
434 struct nfs4_sequence_res seq_res;
435 };
436
437 struct nfs_release_lockowner_args {
438 struct nfs_lowner lock_owner;
439 };
440
441 struct nfs4_delegreturnargs {
442 const struct nfs_fh *fhandle;
443 const nfs4_stateid *stateid;
444 const u32 * bitmask;
445 struct nfs4_sequence_args seq_args;
446 };
447
448 struct nfs4_delegreturnres {
449 struct nfs_fattr * fattr;
450 const struct nfs_server *server;
451 struct nfs4_sequence_res seq_res;
452 };
453
454 /*
455 * Arguments to the read call.
456 */
457 struct nfs_readargs {
458 struct nfs_fh * fh;
459 struct nfs_open_context *context;
460 struct nfs_lock_context *lock_context;
461 __u64 offset;
462 __u32 count;
463 unsigned int pgbase;
464 struct page ** pages;
465 struct nfs4_sequence_args seq_args;
466 };
467
468 struct nfs_readres {
469 struct nfs_fattr * fattr;
470 __u32 count;
471 int eof;
472 struct nfs4_sequence_res seq_res;
473 };
474
475 /*
476 * Arguments to the write call.
477 */
478 struct nfs_writeargs {
479 struct nfs_fh * fh;
480 struct nfs_open_context *context;
481 struct nfs_lock_context *lock_context;
482 __u64 offset;
483 __u32 count;
484 enum nfs3_stable_how stable;
485 unsigned int pgbase;
486 struct page ** pages;
487 const u32 * bitmask;
488 struct nfs4_sequence_args seq_args;
489 };
490
491 struct nfs_writeverf {
492 enum nfs3_stable_how committed;
493 __be32 verifier[2];
494 };
495
496 struct nfs_writeres {
497 struct nfs_fattr * fattr;
498 struct nfs_writeverf * verf;
499 __u32 count;
500 const struct nfs_server *server;
501 struct nfs4_sequence_res seq_res;
502 };
503
504 /*
505 * Common arguments to the unlink call
506 */
507 struct nfs_removeargs {
508 const struct nfs_fh *fh;
509 struct qstr name;
510 const u32 * bitmask;
511 struct nfs4_sequence_args seq_args;
512 };
513
514 struct nfs_removeres {
515 const struct nfs_server *server;
516 struct nfs_fattr *dir_attr;
517 struct nfs4_change_info cinfo;
518 struct nfs4_sequence_res seq_res;
519 };
520
521 /*
522 * Common arguments to the rename call
523 */
524 struct 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
533 struct 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
542 /*
543 * Argument struct for decode_entry function
544 */
545 struct 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;
554 unsigned char d_type;
555 struct nfs_server * server;
556 };
557
558 /*
559 * The following types are for NFSv2 only.
560 */
561 struct nfs_sattrargs {
562 struct nfs_fh * fh;
563 struct iattr * sattr;
564 };
565
566 struct nfs_diropargs {
567 struct nfs_fh * fh;
568 const char * name;
569 unsigned int len;
570 };
571
572 struct nfs_createargs {
573 struct nfs_fh * fh;
574 const char * name;
575 unsigned int len;
576 struct iattr * sattr;
577 };
578
579 struct 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;
585 struct nfs4_sequence_args seq_args;
586 };
587
588 struct nfs_setaclargs {
589 struct nfs_fh * fh;
590 size_t acl_len;
591 unsigned int acl_pgbase;
592 struct page ** acl_pages;
593 struct nfs4_sequence_args seq_args;
594 };
595
596 struct nfs_setaclres {
597 struct nfs4_sequence_res seq_res;
598 };
599
600 struct nfs_getaclargs {
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_getaclres {
609 size_t acl_len;
610 struct nfs4_sequence_res seq_res;
611 };
612
613 struct nfs_setattrres {
614 struct nfs_fattr * fattr;
615 const struct nfs_server * server;
616 struct nfs4_sequence_res seq_res;
617 };
618
619 struct nfs_linkargs {
620 struct nfs_fh * fromfh;
621 struct nfs_fh * tofh;
622 const char * toname;
623 unsigned int tolen;
624 };
625
626 struct nfs_symlinkargs {
627 struct nfs_fh * fromfh;
628 const char * fromname;
629 unsigned int fromlen;
630 struct page ** pages;
631 unsigned int pathlen;
632 struct iattr * sattr;
633 };
634
635 struct nfs_readdirargs {
636 struct nfs_fh * fh;
637 __u32 cookie;
638 unsigned int count;
639 struct page ** pages;
640 };
641
642 struct nfs3_getaclargs {
643 struct nfs_fh * fh;
644 int mask;
645 struct page ** pages;
646 };
647
648 struct nfs3_setaclargs {
649 struct inode * inode;
650 int mask;
651 struct posix_acl * acl_access;
652 struct posix_acl * acl_default;
653 size_t len;
654 unsigned int npages;
655 struct page ** pages;
656 };
657
658 struct nfs_diropok {
659 struct nfs_fh * fh;
660 struct nfs_fattr * fattr;
661 };
662
663 struct nfs_readlinkargs {
664 struct nfs_fh * fh;
665 unsigned int pgbase;
666 unsigned int pglen;
667 struct page ** pages;
668 };
669
670 struct nfs3_sattrargs {
671 struct nfs_fh * fh;
672 struct iattr * sattr;
673 unsigned int guard;
674 struct timespec guardtime;
675 };
676
677 struct nfs3_diropargs {
678 struct nfs_fh * fh;
679 const char * name;
680 unsigned int len;
681 };
682
683 struct nfs3_accessargs {
684 struct nfs_fh * fh;
685 __u32 access;
686 };
687
688 struct nfs3_createargs {
689 struct nfs_fh * fh;
690 const char * name;
691 unsigned int len;
692 struct iattr * sattr;
693 enum nfs3_createmode createmode;
694 __be32 verifier[2];
695 };
696
697 struct nfs3_mkdirargs {
698 struct nfs_fh * fh;
699 const char * name;
700 unsigned int len;
701 struct iattr * sattr;
702 };
703
704 struct nfs3_symlinkargs {
705 struct nfs_fh * fromfh;
706 const char * fromname;
707 unsigned int fromlen;
708 struct page ** pages;
709 unsigned int pathlen;
710 struct iattr * sattr;
711 };
712
713 struct 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
722 struct nfs3_linkargs {
723 struct nfs_fh * fromfh;
724 struct nfs_fh * tofh;
725 const char * toname;
726 unsigned int tolen;
727 };
728
729 struct nfs3_readdirargs {
730 struct nfs_fh * fh;
731 __u64 cookie;
732 __be32 verf[2];
733 int plus;
734 unsigned int count;
735 struct page ** pages;
736 };
737
738 struct nfs3_diropres {
739 struct nfs_fattr * dir_attr;
740 struct nfs_fh * fh;
741 struct nfs_fattr * fattr;
742 };
743
744 struct nfs3_accessres {
745 struct nfs_fattr * fattr;
746 __u32 access;
747 };
748
749 struct nfs3_readlinkargs {
750 struct nfs_fh * fh;
751 unsigned int pgbase;
752 unsigned int pglen;
753 struct page ** pages;
754 };
755
756 struct nfs3_linkres {
757 struct nfs_fattr * dir_attr;
758 struct nfs_fattr * fattr;
759 };
760
761 struct nfs3_readdirres {
762 struct nfs_fattr * dir_attr;
763 __be32 * verf;
764 int plus;
765 };
766
767 struct 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
776 struct nfs4_string {
777 unsigned int len;
778 char *data;
779 };
780
781 #ifdef CONFIG_NFS_V4
782
783 typedef u64 clientid4;
784
785 struct nfs4_accessargs {
786 const struct nfs_fh * fh;
787 const u32 * bitmask;
788 u32 access;
789 struct nfs4_sequence_args seq_args;
790 };
791
792 struct nfs4_accessres {
793 const struct nfs_server * server;
794 struct nfs_fattr * fattr;
795 u32 supported;
796 u32 access;
797 struct nfs4_sequence_res seq_res;
798 };
799
800 struct nfs4_create_arg {
801 u32 ftype;
802 union {
803 struct {
804 struct page ** pages;
805 unsigned int len;
806 } symlink; /* NF4LNK */
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;
817 struct nfs4_sequence_args seq_args;
818 };
819
820 struct 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;
825 struct nfs_fattr * dir_fattr;
826 struct nfs4_sequence_res seq_res;
827 };
828
829 struct nfs4_fsinfo_arg {
830 const struct nfs_fh * fh;
831 const u32 * bitmask;
832 struct nfs4_sequence_args seq_args;
833 };
834
835 struct nfs4_fsinfo_res {
836 struct nfs_fsinfo *fsinfo;
837 struct nfs4_sequence_res seq_res;
838 };
839
840 struct nfs4_getattr_arg {
841 const struct nfs_fh * fh;
842 const u32 * bitmask;
843 struct nfs4_sequence_args seq_args;
844 };
845
846 struct nfs4_getattr_res {
847 const struct nfs_server * server;
848 struct nfs_fattr * fattr;
849 struct nfs4_sequence_res seq_res;
850 };
851
852 struct nfs4_link_arg {
853 const struct nfs_fh * fh;
854 const struct nfs_fh * dir_fh;
855 const struct qstr * name;
856 const u32 * bitmask;
857 struct nfs4_sequence_args seq_args;
858 };
859
860 struct 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;
865 struct nfs4_sequence_res seq_res;
866 };
867
868
869 struct nfs4_lookup_arg {
870 const struct nfs_fh * dir_fh;
871 const struct qstr * name;
872 const u32 * bitmask;
873 struct nfs4_sequence_args seq_args;
874 };
875
876 struct nfs4_lookup_res {
877 const struct nfs_server * server;
878 struct nfs_fattr * fattr;
879 struct nfs_fh * fh;
880 struct nfs4_sequence_res seq_res;
881 };
882
883 struct nfs4_lookup_root_arg {
884 const u32 * bitmask;
885 struct nfs4_sequence_args seq_args;
886 };
887
888 struct nfs4_pathconf_arg {
889 const struct nfs_fh * fh;
890 const u32 * bitmask;
891 struct nfs4_sequence_args seq_args;
892 };
893
894 struct nfs4_pathconf_res {
895 struct nfs_pathconf *pathconf;
896 struct nfs4_sequence_res seq_res;
897 };
898
899 struct 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;
907 int plus;
908 struct nfs4_sequence_args seq_args;
909 };
910
911 struct nfs4_readdir_res {
912 nfs4_verifier verifier;
913 unsigned int pgbase;
914 struct nfs4_sequence_res seq_res;
915 };
916
917 struct 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 */
922 struct nfs4_sequence_args seq_args;
923 };
924
925 struct nfs4_readlink_res {
926 struct nfs4_sequence_res seq_res;
927 };
928
929 #define NFS4_SETCLIENTID_NAMELEN (127)
930 struct nfs4_setclientid {
931 const nfs4_verifier * sc_verifier;
932 unsigned int sc_name_len;
933 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
934 u32 sc_prog;
935 unsigned int sc_netid_len;
936 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
937 unsigned int sc_uaddr_len;
938 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
939 u32 sc_cb_ident;
940 };
941
942 struct nfs4_setclientid_res {
943 u64 clientid;
944 nfs4_verifier confirm;
945 };
946
947 struct nfs4_statfs_arg {
948 const struct nfs_fh * fh;
949 const u32 * bitmask;
950 struct nfs4_sequence_args seq_args;
951 };
952
953 struct nfs4_statfs_res {
954 struct nfs_fsstat *fsstat;
955 struct nfs4_sequence_res seq_res;
956 };
957
958 struct nfs4_server_caps_arg {
959 struct nfs_fh *fhandle;
960 struct nfs4_sequence_args seq_args;
961 };
962
963 struct nfs4_server_caps_res {
964 u32 attr_bitmask[3];
965 u32 acl_bitmask;
966 u32 has_links;
967 u32 has_symlinks;
968 struct nfs4_sequence_res seq_res;
969 };
970
971 #define NFS4_PATHNAME_MAXCOMPONENTS 512
972 struct nfs4_pathname {
973 unsigned int ncomponents;
974 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
975 };
976
977 #define NFS4_FS_LOCATION_MAXSERVERS 10
978 struct 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
985 struct nfs4_fs_locations {
986 struct nfs_fattr fattr;
987 const struct nfs_server *server;
988 struct nfs4_pathname fs_path;
989 int nlocations;
990 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
991 };
992
993 struct nfs4_fs_locations_arg {
994 const struct nfs_fh *dir_fh;
995 const struct qstr *name;
996 struct page *page;
997 const u32 *bitmask;
998 struct nfs4_sequence_args seq_args;
999 };
1000
1001 struct nfs4_fs_locations_res {
1002 struct nfs4_fs_locations *fs_locations;
1003 struct nfs4_sequence_res seq_res;
1004 };
1005
1006 struct nfs4_secinfo_oid {
1007 unsigned int len;
1008 char data[GSS_OID_MAX_LEN];
1009 };
1010
1011 struct nfs4_secinfo_gss {
1012 struct nfs4_secinfo_oid sec_oid4;
1013 unsigned int qop4;
1014 unsigned int service;
1015 };
1016
1017 struct nfs4_secinfo_flavor {
1018 unsigned int flavor;
1019 struct nfs4_secinfo_gss gss;
1020 };
1021
1022 struct nfs4_secinfo_flavors {
1023 unsigned int num_flavors;
1024 struct nfs4_secinfo_flavor flavors[0];
1025 };
1026
1027 struct nfs4_secinfo_arg {
1028 const struct nfs_fh *dir_fh;
1029 const struct qstr *name;
1030 struct nfs4_sequence_args seq_args;
1031 };
1032
1033 struct nfs4_secinfo_res {
1034 struct nfs4_secinfo_flavors *flavors;
1035 struct nfs4_sequence_res seq_res;
1036 };
1037
1038 #endif /* CONFIG_NFS_V4 */
1039
1040 struct nfstime4 {
1041 u64 seconds;
1042 u32 nseconds;
1043 };
1044
1045 #ifdef CONFIG_NFS_V4_1
1046 struct 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)
1055 struct 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
1063 struct server_owner {
1064 uint64_t minor_id;
1065 uint32_t major_id_sz;
1066 char major_id[NFS4_OPAQUE_LIMIT];
1067 };
1068
1069 struct server_scope {
1070 uint32_t server_scope_sz;
1071 char server_scope[NFS4_OPAQUE_LIMIT];
1072 };
1073
1074 struct nfs41_exchange_id_res {
1075 struct nfs_client *client;
1076 u32 flags;
1077 struct server_scope *server_scope;
1078 };
1079
1080 struct 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
1088 struct nfs41_create_session_res {
1089 struct nfs_client *client;
1090 };
1091
1092 struct 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
1098 struct nfs41_reclaim_complete_res {
1099 struct nfs4_sequence_res seq_res;
1100 };
1101
1102 #define SECINFO_STYLE_CURRENT_FH 0
1103 #define SECINFO_STYLE_PARENT 1
1104 struct nfs41_secinfo_no_name_args {
1105 int style;
1106 struct nfs4_sequence_args seq_args;
1107 };
1108
1109 struct nfs41_test_stateid_args {
1110 nfs4_stateid *stateid;
1111 struct nfs4_sequence_args seq_args;
1112 };
1113
1114 struct nfs41_test_stateid_res {
1115 unsigned int status;
1116 struct nfs4_sequence_res seq_res;
1117 };
1118
1119 struct nfs41_free_stateid_args {
1120 nfs4_stateid *stateid;
1121 struct nfs4_sequence_args seq_args;
1122 };
1123
1124 struct nfs41_free_stateid_res {
1125 unsigned int status;
1126 struct nfs4_sequence_res seq_res;
1127 };
1128
1129 #endif /* CONFIG_NFS_V4_1 */
1130
1131 struct nfs_page;
1132
1133 #define NFS_PAGEVEC_SIZE (8U)
1134
1135 struct nfs_read_data {
1136 int flags;
1137 struct rpc_task task;
1138 struct inode *inode;
1139 struct rpc_cred *cred;
1140 struct nfs_fattr fattr; /* fattr storage */
1141 struct list_head pages; /* Coalesced read requests */
1142 struct list_head list; /* lists of struct nfs_read_data */
1143 struct nfs_page *req; /* multi ops per nfs_page */
1144 struct page **pagevec;
1145 unsigned int npages; /* Max length of pagevec */
1146 struct nfs_readargs args;
1147 struct nfs_readres res;
1148 unsigned long timestamp; /* For lease renewal */
1149 struct pnfs_layout_segment *lseg;
1150 struct nfs_client *ds_clp; /* pNFS data server */
1151 const struct rpc_call_ops *mds_ops;
1152 int (*read_done_cb) (struct rpc_task *task, struct nfs_read_data *data);
1153 __u64 mds_offset;
1154 int pnfs_error;
1155 struct page *page_array[NFS_PAGEVEC_SIZE];
1156 };
1157
1158 struct nfs_write_data {
1159 int flags;
1160 struct rpc_task task;
1161 struct inode *inode;
1162 struct rpc_cred *cred;
1163 struct nfs_fattr fattr;
1164 struct nfs_writeverf verf;
1165 struct list_head pages; /* Coalesced requests we wish to flush */
1166 struct list_head list; /* lists of struct nfs_write_data */
1167 struct nfs_page *req; /* multi ops per nfs_page */
1168 struct page **pagevec;
1169 unsigned int npages; /* Max length of pagevec */
1170 struct nfs_writeargs args; /* argument struct */
1171 struct nfs_writeres res; /* result struct */
1172 struct pnfs_layout_segment *lseg;
1173 struct nfs_client *ds_clp; /* pNFS data server */
1174 int ds_commit_index;
1175 const struct rpc_call_ops *mds_ops;
1176 int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data);
1177 #ifdef CONFIG_NFS_V4
1178 unsigned long timestamp; /* For lease renewal */
1179 #endif
1180 __u64 mds_offset; /* Filelayout dense stripe */
1181 int pnfs_error;
1182 struct page *page_array[NFS_PAGEVEC_SIZE];
1183 };
1184
1185 struct nfs_access_entry;
1186 struct nfs_client;
1187 struct rpc_timeout;
1188
1189 /*
1190 * RPC procedure vector for NFSv2/NFSv3 demuxing
1191 */
1192 struct nfs_rpc_ops {
1193 u32 version; /* Protocol version */
1194 const struct dentry_operations *dentry_ops;
1195 const struct inode_operations *dir_inode_ops;
1196 const struct inode_operations *file_inode_ops;
1197
1198 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1199 struct nfs_fsinfo *);
1200 int (*lookupfh)(struct nfs_server *, struct nfs_fh *,
1201 struct qstr *, struct nfs_fh *,
1202 struct nfs_fattr *);
1203 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1204 struct nfs_fattr *);
1205 int (*setattr) (struct dentry *, struct nfs_fattr *,
1206 struct iattr *);
1207 int (*lookup) (struct rpc_clnt *clnt, struct inode *, struct qstr *,
1208 struct nfs_fh *, struct nfs_fattr *);
1209 int (*access) (struct inode *, struct nfs_access_entry *);
1210 int (*readlink)(struct inode *, struct page *, unsigned int,
1211 unsigned int);
1212 int (*create) (struct inode *, struct dentry *,
1213 struct iattr *, int, struct nfs_open_context *);
1214 int (*remove) (struct inode *, struct qstr *);
1215 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1216 int (*unlink_done) (struct rpc_task *, struct inode *);
1217 int (*rename) (struct inode *, struct qstr *,
1218 struct inode *, struct qstr *);
1219 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1220 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1221 int (*link) (struct inode *, struct inode *, struct qstr *);
1222 int (*symlink) (struct inode *, struct dentry *, struct page *,
1223 unsigned int, struct iattr *);
1224 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1225 int (*rmdir) (struct inode *, struct qstr *);
1226 int (*readdir) (struct dentry *, struct rpc_cred *,
1227 u64, struct page **, unsigned int, int);
1228 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1229 dev_t);
1230 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1231 struct nfs_fsstat *);
1232 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1233 struct nfs_fsinfo *);
1234 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1235 struct nfs_pathconf *);
1236 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1237 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1238 void (*read_setup) (struct nfs_read_data *, struct rpc_message *);
1239 int (*read_done) (struct rpc_task *, struct nfs_read_data *);
1240 void (*write_setup) (struct nfs_write_data *, struct rpc_message *);
1241 int (*write_done) (struct rpc_task *, struct nfs_write_data *);
1242 void (*commit_setup) (struct nfs_write_data *, struct rpc_message *);
1243 int (*commit_done) (struct rpc_task *, struct nfs_write_data *);
1244 int (*lock)(struct file *, int, struct file_lock *);
1245 int (*lock_check_bounds)(const struct file_lock *);
1246 void (*clear_acl_cache)(struct inode *);
1247 void (*close_context)(struct nfs_open_context *ctx, int);
1248 struct inode * (*open_context) (struct inode *dir,
1249 struct nfs_open_context *ctx,
1250 int open_flags,
1251 struct iattr *iattr);
1252 int (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1253 const char *, rpc_authflavor_t, int);
1254 int (*secinfo)(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *);
1255 };
1256
1257 /*
1258 * NFS_CALL(getattr, inode, (fattr));
1259 * into
1260 * NFS_PROTO(inode)->getattr(fattr);
1261 */
1262 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1263
1264 /*
1265 * Function vectors etc. for the NFS client
1266 */
1267 extern const struct nfs_rpc_ops nfs_v2_clientops;
1268 extern const struct nfs_rpc_ops nfs_v3_clientops;
1269 extern const struct nfs_rpc_ops nfs_v4_clientops;
1270 extern struct rpc_version nfs_version2;
1271 extern struct rpc_version nfs_version3;
1272 extern struct rpc_version nfs_version4;
1273
1274 extern struct rpc_version nfsacl_version3;
1275 extern struct rpc_program nfsacl_program;
1276
1277 #endif