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 */
nfs_fsid_equal(const struct nfs_fsid * a,const struct nfs_fsid * b)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 };
126
127 struct nfs_fsstat {
128 struct nfs_fattr *fattr; /* Post-op attributes */
129 __u64 tbytes; /* total size in bytes */
130 __u64 fbytes; /* # of free bytes */
131 __u64 abytes; /* # of bytes available to user */
132 __u64 tfiles; /* # of files */
133 __u64 ffiles; /* # of free files */
134 __u64 afiles; /* # of files available to user */
135 };
136
137 struct nfs2_fsstat {
138 __u32 tsize; /* Server transfer size */
139 __u32 bsize; /* Filesystem block size */
140 __u32 blocks; /* No. of "bsize" blocks on filesystem */
141 __u32 bfree; /* No. of free "bsize" blocks */
142 __u32 bavail; /* No. of available "bsize" blocks */
143 };
144
145 struct nfs_pathconf {
146 struct nfs_fattr *fattr; /* Post-op attributes */
147 __u32 max_link; /* max # of hard links */
148 __u32 max_namelen; /* max name length */
149 };
150
151 struct nfs4_change_info {
152 u32 atomic;
153 u64 before;
154 u64 after;
155 };
156
157 struct nfs_seqid;
158
159 /* nfs41 sessions channel attributes */
160 struct nfs4_channel_attrs {
161 u32 headerpadsz;
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_getdeviceinfo_args {
240 struct pnfs_device *pdev;
241 struct nfs4_sequence_args seq_args;
242 };
243
244 struct nfs4_getdeviceinfo_res {
245 struct pnfs_device *pdev;
246 struct nfs4_sequence_res seq_res;
247 };
248
249 struct nfs4_layoutcommit_args {
250 nfs4_stateid stateid;
251 __u64 lastbytewritten;
252 struct inode *inode;
253 const u32 *bitmask;
254 struct nfs4_sequence_args seq_args;
255 };
256
257 struct nfs4_layoutcommit_res {
258 struct nfs_fattr *fattr;
259 const struct nfs_server *server;
260 struct nfs4_sequence_res seq_res;
261 };
262
263 struct nfs4_layoutcommit_data {
264 struct rpc_task task;
265 struct nfs_fattr fattr;
266 struct pnfs_layout_segment *lseg;
267 struct rpc_cred *cred;
268 struct nfs4_layoutcommit_args args;
269 struct nfs4_layoutcommit_res res;
270 };
271
272 /*
273 * Arguments to the open call.
274 */
275 struct nfs_openargs {
276 const struct nfs_fh * fh;
277 struct nfs_seqid * seqid;
278 int open_flags;
279 fmode_t fmode;
280 __u64 clientid;
281 __u64 id;
282 union {
283 struct {
284 struct iattr * attrs; /* UNCHECKED, GUARDED */
285 nfs4_verifier verifier; /* EXCLUSIVE */
286 };
287 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
288 fmode_t delegation_type; /* CLAIM_PREVIOUS */
289 } u;
290 const struct qstr * name;
291 const struct nfs_server *server; /* Needed for ID mapping */
292 const u32 * bitmask;
293 __u32 claim;
294 struct nfs4_sequence_args seq_args;
295 };
296
297 struct nfs_openres {
298 nfs4_stateid stateid;
299 struct nfs_fh fh;
300 struct nfs4_change_info cinfo;
301 __u32 rflags;
302 struct nfs_fattr * f_attr;
303 struct nfs_fattr * dir_attr;
304 struct nfs_seqid * seqid;
305 const struct nfs_server *server;
306 fmode_t delegation_type;
307 nfs4_stateid delegation;
308 __u32 do_recall;
309 __u64 maxsize;
310 __u32 attrset[NFS4_BITMAP_SIZE];
311 struct nfs4_sequence_res seq_res;
312 };
313
314 /*
315 * Arguments to the open_confirm call.
316 */
317 struct nfs_open_confirmargs {
318 const struct nfs_fh * fh;
319 nfs4_stateid * stateid;
320 struct nfs_seqid * seqid;
321 };
322
323 struct nfs_open_confirmres {
324 nfs4_stateid stateid;
325 struct nfs_seqid * seqid;
326 };
327
328 /*
329 * Arguments to the close call.
330 */
331 struct nfs_closeargs {
332 struct nfs_fh * fh;
333 nfs4_stateid * stateid;
334 struct nfs_seqid * seqid;
335 fmode_t fmode;
336 const u32 * bitmask;
337 struct nfs4_sequence_args seq_args;
338 };
339
340 struct nfs_closeres {
341 nfs4_stateid stateid;
342 struct nfs_fattr * fattr;
343 struct nfs_seqid * seqid;
344 const struct nfs_server *server;
345 struct nfs4_sequence_res seq_res;
346 };
347 /*
348 * * Arguments to the lock,lockt, and locku call.
349 * */
350 struct nfs_lowner {
351 __u64 clientid;
352 __u64 id;
353 dev_t s_dev;
354 };
355
356 struct nfs_lock_args {
357 struct nfs_fh * fh;
358 struct file_lock * fl;
359 struct nfs_seqid * lock_seqid;
360 nfs4_stateid * lock_stateid;
361 struct nfs_seqid * open_seqid;
362 nfs4_stateid * open_stateid;
363 struct nfs_lowner lock_owner;
364 unsigned char block : 1;
365 unsigned char reclaim : 1;
366 unsigned char new_lock_owner : 1;
367 struct nfs4_sequence_args seq_args;
368 };
369
370 struct nfs_lock_res {
371 nfs4_stateid stateid;
372 struct nfs_seqid * lock_seqid;
373 struct nfs_seqid * open_seqid;
374 struct nfs4_sequence_res seq_res;
375 };
376
377 struct nfs_locku_args {
378 struct nfs_fh * fh;
379 struct file_lock * fl;
380 struct nfs_seqid * seqid;
381 nfs4_stateid * stateid;
382 struct nfs4_sequence_args seq_args;
383 };
384
385 struct nfs_locku_res {
386 nfs4_stateid stateid;
387 struct nfs_seqid * seqid;
388 struct nfs4_sequence_res seq_res;
389 };
390
391 struct nfs_lockt_args {
392 struct nfs_fh * fh;
393 struct file_lock * fl;
394 struct nfs_lowner lock_owner;
395 struct nfs4_sequence_args seq_args;
396 };
397
398 struct nfs_lockt_res {
399 struct file_lock * denied; /* LOCK, LOCKT failed */
400 struct nfs4_sequence_res seq_res;
401 };
402
403 struct nfs_release_lockowner_args {
404 struct nfs_lowner lock_owner;
405 };
406
407 struct nfs4_delegreturnargs {
408 const struct nfs_fh *fhandle;
409 const nfs4_stateid *stateid;
410 const u32 * bitmask;
411 struct nfs4_sequence_args seq_args;
412 };
413
414 struct nfs4_delegreturnres {
415 struct nfs_fattr * fattr;
416 const struct nfs_server *server;
417 struct nfs4_sequence_res seq_res;
418 };
419
420 /*
421 * Arguments to the read call.
422 */
423 struct nfs_readargs {
424 struct nfs_fh * fh;
425 struct nfs_open_context *context;
426 struct nfs_lock_context *lock_context;
427 __u64 offset;
428 __u32 count;
429 unsigned int pgbase;
430 struct page ** pages;
431 struct nfs4_sequence_args seq_args;
432 };
433
434 struct nfs_readres {
435 struct nfs_fattr * fattr;
436 __u32 count;
437 int eof;
438 struct nfs4_sequence_res seq_res;
439 };
440
441 /*
442 * Arguments to the write call.
443 */
444 struct nfs_writeargs {
445 struct nfs_fh * fh;
446 struct nfs_open_context *context;
447 struct nfs_lock_context *lock_context;
448 __u64 offset;
449 __u32 count;
450 enum nfs3_stable_how stable;
451 unsigned int pgbase;
452 struct page ** pages;
453 const u32 * bitmask;
454 struct nfs4_sequence_args seq_args;
455 };
456
457 struct nfs_writeverf {
458 enum nfs3_stable_how committed;
459 __be32 verifier[2];
460 };
461
462 struct nfs_writeres {
463 struct nfs_fattr * fattr;
464 struct nfs_writeverf * verf;
465 __u32 count;
466 const struct nfs_server *server;
467 struct nfs4_sequence_res seq_res;
468 };
469
470 /*
471 * Common arguments to the unlink call
472 */
473 struct nfs_removeargs {
474 const struct nfs_fh *fh;
475 struct qstr name;
476 const u32 * bitmask;
477 struct nfs4_sequence_args seq_args;
478 };
479
480 struct nfs_removeres {
481 const struct nfs_server *server;
482 struct nfs_fattr *dir_attr;
483 struct nfs4_change_info cinfo;
484 struct nfs4_sequence_res seq_res;
485 };
486
487 /*
488 * Common arguments to the rename call
489 */
490 struct nfs_renameargs {
491 const struct nfs_fh *old_dir;
492 const struct nfs_fh *new_dir;
493 const struct qstr *old_name;
494 const struct qstr *new_name;
495 const u32 *bitmask;
496 struct nfs4_sequence_args seq_args;
497 };
498
499 struct nfs_renameres {
500 const struct nfs_server *server;
501 struct nfs4_change_info old_cinfo;
502 struct nfs_fattr *old_fattr;
503 struct nfs4_change_info new_cinfo;
504 struct nfs_fattr *new_fattr;
505 struct nfs4_sequence_res seq_res;
506 };
507
508 /*
509 * Argument struct for decode_entry function
510 */
511 struct nfs_entry {
512 __u64 ino;
513 __u64 cookie,
514 prev_cookie;
515 const char * name;
516 unsigned int len;
517 int eof;
518 struct nfs_fh * fh;
519 struct nfs_fattr * fattr;
520 unsigned char d_type;
521 struct nfs_server * server;
522 };
523
524 /*
525 * The following types are for NFSv2 only.
526 */
527 struct nfs_sattrargs {
528 struct nfs_fh * fh;
529 struct iattr * sattr;
530 };
531
532 struct nfs_diropargs {
533 struct nfs_fh * fh;
534 const char * name;
535 unsigned int len;
536 };
537
538 struct nfs_createargs {
539 struct nfs_fh * fh;
540 const char * name;
541 unsigned int len;
542 struct iattr * sattr;
543 };
544
545 struct nfs_setattrargs {
546 struct nfs_fh * fh;
547 nfs4_stateid stateid;
548 struct iattr * iap;
549 const struct nfs_server * server; /* Needed for name mapping */
550 const u32 * bitmask;
551 struct nfs4_sequence_args seq_args;
552 };
553
554 struct nfs_setaclargs {
555 struct nfs_fh * fh;
556 size_t acl_len;
557 unsigned int acl_pgbase;
558 struct page ** acl_pages;
559 struct nfs4_sequence_args seq_args;
560 };
561
562 struct nfs_setaclres {
563 struct nfs4_sequence_res seq_res;
564 };
565
566 struct nfs_getaclargs {
567 struct nfs_fh * fh;
568 size_t acl_len;
569 unsigned int acl_pgbase;
570 struct page ** acl_pages;
571 struct nfs4_sequence_args seq_args;
572 };
573
574 struct nfs_getaclres {
575 size_t acl_len;
576 struct nfs4_sequence_res seq_res;
577 };
578
579 struct nfs_setattrres {
580 struct nfs_fattr * fattr;
581 const struct nfs_server * server;
582 struct nfs4_sequence_res seq_res;
583 };
584
585 struct nfs_linkargs {
586 struct nfs_fh * fromfh;
587 struct nfs_fh * tofh;
588 const char * toname;
589 unsigned int tolen;
590 };
591
592 struct nfs_symlinkargs {
593 struct nfs_fh * fromfh;
594 const char * fromname;
595 unsigned int fromlen;
596 struct page ** pages;
597 unsigned int pathlen;
598 struct iattr * sattr;
599 };
600
601 struct nfs_readdirargs {
602 struct nfs_fh * fh;
603 __u32 cookie;
604 unsigned int count;
605 struct page ** pages;
606 };
607
608 struct nfs3_getaclargs {
609 struct nfs_fh * fh;
610 int mask;
611 struct page ** pages;
612 };
613
614 struct nfs3_setaclargs {
615 struct inode * inode;
616 int mask;
617 struct posix_acl * acl_access;
618 struct posix_acl * acl_default;
619 size_t len;
620 unsigned int npages;
621 struct page ** pages;
622 };
623
624 struct nfs_diropok {
625 struct nfs_fh * fh;
626 struct nfs_fattr * fattr;
627 };
628
629 struct nfs_readlinkargs {
630 struct nfs_fh * fh;
631 unsigned int pgbase;
632 unsigned int pglen;
633 struct page ** pages;
634 };
635
636 struct nfs3_sattrargs {
637 struct nfs_fh * fh;
638 struct iattr * sattr;
639 unsigned int guard;
640 struct timespec guardtime;
641 };
642
643 struct nfs3_diropargs {
644 struct nfs_fh * fh;
645 const char * name;
646 unsigned int len;
647 };
648
649 struct nfs3_accessargs {
650 struct nfs_fh * fh;
651 __u32 access;
652 };
653
654 struct nfs3_createargs {
655 struct nfs_fh * fh;
656 const char * name;
657 unsigned int len;
658 struct iattr * sattr;
659 enum nfs3_createmode createmode;
660 __be32 verifier[2];
661 };
662
663 struct nfs3_mkdirargs {
664 struct nfs_fh * fh;
665 const char * name;
666 unsigned int len;
667 struct iattr * sattr;
668 };
669
670 struct nfs3_symlinkargs {
671 struct nfs_fh * fromfh;
672 const char * fromname;
673 unsigned int fromlen;
674 struct page ** pages;
675 unsigned int pathlen;
676 struct iattr * sattr;
677 };
678
679 struct nfs3_mknodargs {
680 struct nfs_fh * fh;
681 const char * name;
682 unsigned int len;
683 enum nfs3_ftype type;
684 struct iattr * sattr;
685 dev_t rdev;
686 };
687
688 struct nfs3_linkargs {
689 struct nfs_fh * fromfh;
690 struct nfs_fh * tofh;
691 const char * toname;
692 unsigned int tolen;
693 };
694
695 struct nfs3_readdirargs {
696 struct nfs_fh * fh;
697 __u64 cookie;
698 __be32 verf[2];
699 int plus;
700 unsigned int count;
701 struct page ** pages;
702 };
703
704 struct nfs3_diropres {
705 struct nfs_fattr * dir_attr;
706 struct nfs_fh * fh;
707 struct nfs_fattr * fattr;
708 };
709
710 struct nfs3_accessres {
711 struct nfs_fattr * fattr;
712 __u32 access;
713 };
714
715 struct nfs3_readlinkargs {
716 struct nfs_fh * fh;
717 unsigned int pgbase;
718 unsigned int pglen;
719 struct page ** pages;
720 };
721
722 struct nfs3_linkres {
723 struct nfs_fattr * dir_attr;
724 struct nfs_fattr * fattr;
725 };
726
727 struct nfs3_readdirres {
728 struct nfs_fattr * dir_attr;
729 __be32 * verf;
730 int plus;
731 };
732
733 struct nfs3_getaclres {
734 struct nfs_fattr * fattr;
735 int mask;
736 unsigned int acl_access_count;
737 unsigned int acl_default_count;
738 struct posix_acl * acl_access;
739 struct posix_acl * acl_default;
740 };
741
742 #ifdef CONFIG_NFS_V4
743
744 typedef u64 clientid4;
745
746 struct nfs4_accessargs {
747 const struct nfs_fh * fh;
748 const u32 * bitmask;
749 u32 access;
750 struct nfs4_sequence_args seq_args;
751 };
752
753 struct nfs4_accessres {
754 const struct nfs_server * server;
755 struct nfs_fattr * fattr;
756 u32 supported;
757 u32 access;
758 struct nfs4_sequence_res seq_res;
759 };
760
761 struct nfs4_create_arg {
762 u32 ftype;
763 union {
764 struct {
765 struct page ** pages;
766 unsigned int len;
767 } symlink; /* NF4LNK */
768 struct {
769 u32 specdata1;
770 u32 specdata2;
771 } device; /* NF4BLK, NF4CHR */
772 } u;
773 const struct qstr * name;
774 const struct nfs_server * server;
775 const struct iattr * attrs;
776 const struct nfs_fh * dir_fh;
777 const u32 * bitmask;
778 struct nfs4_sequence_args seq_args;
779 };
780
781 struct nfs4_create_res {
782 const struct nfs_server * server;
783 struct nfs_fh * fh;
784 struct nfs_fattr * fattr;
785 struct nfs4_change_info dir_cinfo;
786 struct nfs_fattr * dir_fattr;
787 struct nfs4_sequence_res seq_res;
788 };
789
790 struct nfs4_fsinfo_arg {
791 const struct nfs_fh * fh;
792 const u32 * bitmask;
793 struct nfs4_sequence_args seq_args;
794 };
795
796 struct nfs4_fsinfo_res {
797 struct nfs_fsinfo *fsinfo;
798 struct nfs4_sequence_res seq_res;
799 };
800
801 struct nfs4_getattr_arg {
802 const struct nfs_fh * fh;
803 const u32 * bitmask;
804 struct nfs4_sequence_args seq_args;
805 };
806
807 struct nfs4_getattr_res {
808 const struct nfs_server * server;
809 struct nfs_fattr * fattr;
810 struct nfs4_sequence_res seq_res;
811 };
812
813 struct nfs4_link_arg {
814 const struct nfs_fh * fh;
815 const struct nfs_fh * dir_fh;
816 const struct qstr * name;
817 const u32 * bitmask;
818 struct nfs4_sequence_args seq_args;
819 };
820
821 struct nfs4_link_res {
822 const struct nfs_server * server;
823 struct nfs_fattr * fattr;
824 struct nfs4_change_info cinfo;
825 struct nfs_fattr * dir_attr;
826 struct nfs4_sequence_res seq_res;
827 };
828
829
830 struct nfs4_lookup_arg {
831 const struct nfs_fh * dir_fh;
832 const struct qstr * name;
833 const u32 * bitmask;
834 struct nfs4_sequence_args seq_args;
835 };
836
837 struct nfs4_lookup_res {
838 const struct nfs_server * server;
839 struct nfs_fattr * fattr;
840 struct nfs_fh * fh;
841 struct nfs4_sequence_res seq_res;
842 };
843
844 struct nfs4_lookup_root_arg {
845 const u32 * bitmask;
846 struct nfs4_sequence_args seq_args;
847 };
848
849 struct nfs4_pathconf_arg {
850 const struct nfs_fh * fh;
851 const u32 * bitmask;
852 struct nfs4_sequence_args seq_args;
853 };
854
855 struct nfs4_pathconf_res {
856 struct nfs_pathconf *pathconf;
857 struct nfs4_sequence_res seq_res;
858 };
859
860 struct nfs4_readdir_arg {
861 const struct nfs_fh * fh;
862 u64 cookie;
863 nfs4_verifier verifier;
864 u32 count;
865 struct page ** pages; /* zero-copy data */
866 unsigned int pgbase; /* zero-copy data */
867 const u32 * bitmask;
868 int plus;
869 struct nfs4_sequence_args seq_args;
870 };
871
872 struct nfs4_readdir_res {
873 nfs4_verifier verifier;
874 unsigned int pgbase;
875 struct nfs4_sequence_res seq_res;
876 };
877
878 struct nfs4_readlink {
879 const struct nfs_fh * fh;
880 unsigned int pgbase;
881 unsigned int pglen; /* zero-copy data */
882 struct page ** pages; /* zero-copy data */
883 struct nfs4_sequence_args seq_args;
884 };
885
886 struct nfs4_readlink_res {
887 struct nfs4_sequence_res seq_res;
888 };
889
890 #define NFS4_SETCLIENTID_NAMELEN (127)
891 struct nfs4_setclientid {
892 const nfs4_verifier * sc_verifier;
893 unsigned int sc_name_len;
894 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
895 u32 sc_prog;
896 unsigned int sc_netid_len;
897 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
898 unsigned int sc_uaddr_len;
899 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
900 u32 sc_cb_ident;
901 };
902
903 struct nfs4_setclientid_res {
904 u64 clientid;
905 nfs4_verifier confirm;
906 };
907
908 struct nfs4_statfs_arg {
909 const struct nfs_fh * fh;
910 const u32 * bitmask;
911 struct nfs4_sequence_args seq_args;
912 };
913
914 struct nfs4_statfs_res {
915 struct nfs_fsstat *fsstat;
916 struct nfs4_sequence_res seq_res;
917 };
918
919 struct nfs4_server_caps_arg {
920 struct nfs_fh *fhandle;
921 struct nfs4_sequence_args seq_args;
922 };
923
924 struct nfs4_server_caps_res {
925 u32 attr_bitmask[2];
926 u32 acl_bitmask;
927 u32 has_links;
928 u32 has_symlinks;
929 struct nfs4_sequence_res seq_res;
930 };
931
932 struct nfs4_string {
933 unsigned int len;
934 char *data;
935 };
936
937 #define NFS4_PATHNAME_MAXCOMPONENTS 512
938 struct nfs4_pathname {
939 unsigned int ncomponents;
940 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
941 };
942
943 #define NFS4_FS_LOCATION_MAXSERVERS 10
944 struct nfs4_fs_location {
945 unsigned int nservers;
946 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
947 struct nfs4_pathname rootpath;
948 };
949
950 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
951 struct nfs4_fs_locations {
952 struct nfs_fattr fattr;
953 const struct nfs_server *server;
954 struct nfs4_pathname fs_path;
955 int nlocations;
956 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
957 };
958
959 struct nfs4_fs_locations_arg {
960 const struct nfs_fh *dir_fh;
961 const struct qstr *name;
962 struct page *page;
963 const u32 *bitmask;
964 struct nfs4_sequence_args seq_args;
965 };
966
967 struct nfs4_fs_locations_res {
968 struct nfs4_fs_locations *fs_locations;
969 struct nfs4_sequence_res seq_res;
970 };
971
972 struct nfs4_secinfo_oid {
973 unsigned int len;
974 char data[GSS_OID_MAX_LEN];
975 };
976
977 struct nfs4_secinfo_gss {
978 struct nfs4_secinfo_oid sec_oid4;
979 unsigned int qop4;
980 unsigned int service;
981 };
982
983 struct nfs4_secinfo_flavor {
984 unsigned int flavor;
985 struct nfs4_secinfo_gss gss;
986 };
987
988 struct nfs4_secinfo_flavors {
989 unsigned int num_flavors;
990 struct nfs4_secinfo_flavor flavors[0];
991 };
992
993 struct nfs4_secinfo_arg {
994 const struct nfs_fh *dir_fh;
995 const struct qstr *name;
996 struct nfs4_sequence_args seq_args;
997 };
998
999 struct nfs4_secinfo_res {
1000 struct nfs4_secinfo_flavors *flavors;
1001 struct nfs4_sequence_res seq_res;
1002 };
1003
1004 #endif /* CONFIG_NFS_V4 */
1005
1006 struct nfstime4 {
1007 u64 seconds;
1008 u32 nseconds;
1009 };
1010
1011 #ifdef CONFIG_NFS_V4_1
1012 struct nfs_impl_id4 {
1013 u32 domain_len;
1014 char *domain;
1015 u32 name_len;
1016 char *name;
1017 struct nfstime4 date;
1018 };
1019
1020 #define NFS4_EXCHANGE_ID_LEN (48)
1021 struct nfs41_exchange_id_args {
1022 struct nfs_client *client;
1023 nfs4_verifier *verifier;
1024 unsigned int id_len;
1025 char id[NFS4_EXCHANGE_ID_LEN];
1026 u32 flags;
1027 };
1028
1029 struct server_owner {
1030 uint64_t minor_id;
1031 uint32_t major_id_sz;
1032 char major_id[NFS4_OPAQUE_LIMIT];
1033 };
1034
1035 struct server_scope {
1036 uint32_t server_scope_sz;
1037 char server_scope[NFS4_OPAQUE_LIMIT];
1038 };
1039
1040 struct nfs41_exchange_id_res {
1041 struct nfs_client *client;
1042 u32 flags;
1043 };
1044
1045 struct nfs41_create_session_args {
1046 struct nfs_client *client;
1047 uint32_t flags;
1048 uint32_t cb_program;
1049 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1050 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1051 };
1052
1053 struct nfs41_create_session_res {
1054 struct nfs_client *client;
1055 };
1056
1057 struct nfs41_reclaim_complete_args {
1058 /* In the future extend to include curr_fh for use with migration */
1059 unsigned char one_fs:1;
1060 struct nfs4_sequence_args seq_args;
1061 };
1062
1063 struct nfs41_reclaim_complete_res {
1064 struct nfs4_sequence_res seq_res;
1065 };
1066 #endif /* CONFIG_NFS_V4_1 */
1067
1068 struct nfs_page;
1069
1070 #define NFS_PAGEVEC_SIZE (8U)
1071
1072 struct nfs_read_data {
1073 int flags;
1074 struct rpc_task task;
1075 struct inode *inode;
1076 struct rpc_cred *cred;
1077 struct nfs_fattr fattr; /* fattr storage */
1078 struct list_head pages; /* Coalesced read requests */
1079 struct nfs_page *req; /* multi ops per nfs_page */
1080 struct page **pagevec;
1081 unsigned int npages; /* Max length of pagevec */
1082 struct nfs_readargs args;
1083 struct nfs_readres res;
1084 unsigned long timestamp; /* For lease renewal */
1085 struct pnfs_layout_segment *lseg;
1086 struct nfs_client *ds_clp; /* pNFS data server */
1087 const struct rpc_call_ops *mds_ops;
1088 int (*read_done_cb) (struct rpc_task *task, struct nfs_read_data *data);
1089 __u64 mds_offset;
1090 struct page *page_array[NFS_PAGEVEC_SIZE];
1091 };
1092
1093 struct nfs_write_data {
1094 int flags;
1095 struct rpc_task task;
1096 struct inode *inode;
1097 struct rpc_cred *cred;
1098 struct nfs_fattr fattr;
1099 struct nfs_writeverf verf;
1100 struct list_head pages; /* Coalesced requests we wish to flush */
1101 struct nfs_page *req; /* multi ops per nfs_page */
1102 struct page **pagevec;
1103 unsigned int npages; /* Max length of pagevec */
1104 struct nfs_writeargs args; /* argument struct */
1105 struct nfs_writeres res; /* result struct */
1106 struct pnfs_layout_segment *lseg;
1107 struct nfs_client *ds_clp; /* pNFS data server */
1108 int ds_commit_index;
1109 const struct rpc_call_ops *mds_ops;
1110 int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data);
1111 #ifdef CONFIG_NFS_V4
1112 unsigned long timestamp; /* For lease renewal */
1113 #endif
1114 __u64 mds_offset; /* Filelayout dense stripe */
1115 struct page *page_array[NFS_PAGEVEC_SIZE];
1116 };
1117
1118 struct nfs_access_entry;
1119 struct nfs_client;
1120 struct rpc_timeout;
1121
1122 /*
1123 * RPC procedure vector for NFSv2/NFSv3 demuxing
1124 */
1125 struct nfs_rpc_ops {
1126 u32 version; /* Protocol version */
1127 const struct dentry_operations *dentry_ops;
1128 const struct inode_operations *dir_inode_ops;
1129 const struct inode_operations *file_inode_ops;
1130
1131 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1132 struct nfs_fsinfo *);
1133 int (*lookupfh)(struct nfs_server *, struct nfs_fh *,
1134 struct qstr *, struct nfs_fh *,
1135 struct nfs_fattr *);
1136 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1137 struct nfs_fattr *);
1138 int (*setattr) (struct dentry *, struct nfs_fattr *,
1139 struct iattr *);
1140 int (*lookup) (struct rpc_clnt *clnt, struct inode *, struct qstr *,
1141 struct nfs_fh *, struct nfs_fattr *);
1142 int (*access) (struct inode *, struct nfs_access_entry *);
1143 int (*readlink)(struct inode *, struct page *, unsigned int,
1144 unsigned int);
1145 int (*create) (struct inode *, struct dentry *,
1146 struct iattr *, int, struct nfs_open_context *);
1147 int (*remove) (struct inode *, struct qstr *);
1148 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1149 int (*unlink_done) (struct rpc_task *, struct inode *);
1150 int (*rename) (struct inode *, struct qstr *,
1151 struct inode *, struct qstr *);
1152 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1153 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1154 int (*link) (struct inode *, struct inode *, struct qstr *);
1155 int (*symlink) (struct inode *, struct dentry *, struct page *,
1156 unsigned int, struct iattr *);
1157 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1158 int (*rmdir) (struct inode *, struct qstr *);
1159 int (*readdir) (struct dentry *, struct rpc_cred *,
1160 u64, struct page **, unsigned int, int);
1161 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1162 dev_t);
1163 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1164 struct nfs_fsstat *);
1165 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1166 struct nfs_fsinfo *);
1167 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1168 struct nfs_pathconf *);
1169 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1170 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1171 void (*read_setup) (struct nfs_read_data *, struct rpc_message *);
1172 int (*read_done) (struct rpc_task *, struct nfs_read_data *);
1173 void (*write_setup) (struct nfs_write_data *, struct rpc_message *);
1174 int (*write_done) (struct rpc_task *, struct nfs_write_data *);
1175 void (*commit_setup) (struct nfs_write_data *, struct rpc_message *);
1176 int (*commit_done) (struct rpc_task *, struct nfs_write_data *);
1177 int (*lock)(struct file *, int, struct file_lock *);
1178 int (*lock_check_bounds)(const struct file_lock *);
1179 void (*clear_acl_cache)(struct inode *);
1180 void (*close_context)(struct nfs_open_context *ctx, int);
1181 struct inode * (*open_context) (struct inode *dir,
1182 struct nfs_open_context *ctx,
1183 int open_flags,
1184 struct iattr *iattr);
1185 int (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1186 const char *, rpc_authflavor_t, int);
1187 int (*secinfo)(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *);
1188 };
1189
1190 /*
1191 * NFS_CALL(getattr, inode, (fattr));
1192 * into
1193 * NFS_PROTO(inode)->getattr(fattr);
1194 */
1195 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1196
1197 /*
1198 * Function vectors etc. for the NFS client
1199 */
1200 extern const struct nfs_rpc_ops nfs_v2_clientops;
1201 extern const struct nfs_rpc_ops nfs_v3_clientops;
1202 extern const struct nfs_rpc_ops nfs_v4_clientops;
1203 extern struct rpc_version nfs_version2;
1204 extern struct rpc_version nfs_version3;
1205 extern struct rpc_version nfs_version4;
1206
1207 extern struct rpc_version nfsacl_version3;
1208 extern struct rpc_program nfsacl_program;
1209
1210 #endif
1211