1 #ifndef _LINUX_NFS_XDR_H
2 #define _LINUX_NFS_XDR_H
3
4 #include <linux/nfsacl.h>
5 #include <linux/sunrpc/gss_api.h>
6
7 /*
8 * To change the maximum rsize and wsize supported by the NFS client, adjust
9 * NFS_MAX_FILE_IO_SIZE. 64KB is a typical maximum, but some servers can
10 * support a megabyte or more. The default is left at 4096 bytes, which is
11 * reasonable for NFS over UDP.
12 */
13 #define NFS_MAX_FILE_IO_SIZE (1048576U)
14 #define NFS_DEF_FILE_IO_SIZE (4096U)
15 #define NFS_MIN_FILE_IO_SIZE (1024U)
16
17 /* Forward declaration for NFS v3 */
18 struct nfs4_secinfo_flavors;
19
20 struct nfs4_string {
21 unsigned int len;
22 char *data;
23 };
24
25 struct nfs_fsid {
26 uint64_t major;
27 uint64_t minor;
28 };
29
30 /*
31 * Helper for checking equality between 2 fsids.
32 */
nfs_fsid_equal(const struct nfs_fsid * a,const struct nfs_fsid * b)33 static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b)
34 {
35 return a->major == b->major && a->minor == b->minor;
36 }
37
38 struct nfs_fattr {
39 unsigned int valid; /* which fields are valid */
40 umode_t mode;
41 __u32 nlink;
42 __u32 uid;
43 __u32 gid;
44 dev_t rdev;
45 __u64 size;
46 union {
47 struct {
48 __u32 blocksize;
49 __u32 blocks;
50 } nfs2;
51 struct {
52 __u64 used;
53 } nfs3;
54 } du;
55 struct nfs_fsid fsid;
56 __u64 fileid;
57 __u64 mounted_on_fileid;
58 struct timespec atime;
59 struct timespec mtime;
60 struct timespec ctime;
61 __u64 change_attr; /* NFSv4 change attribute */
62 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */
63 __u64 pre_size; /* pre_op_attr.size */
64 struct timespec pre_mtime; /* pre_op_attr.mtime */
65 struct timespec pre_ctime; /* pre_op_attr.ctime */
66 unsigned long time_start;
67 unsigned long gencount;
68 struct nfs4_string *owner_name;
69 struct nfs4_string *group_name;
70 };
71
72 #define NFS_ATTR_FATTR_TYPE (1U << 0)
73 #define NFS_ATTR_FATTR_MODE (1U << 1)
74 #define NFS_ATTR_FATTR_NLINK (1U << 2)
75 #define NFS_ATTR_FATTR_OWNER (1U << 3)
76 #define NFS_ATTR_FATTR_GROUP (1U << 4)
77 #define NFS_ATTR_FATTR_RDEV (1U << 5)
78 #define NFS_ATTR_FATTR_SIZE (1U << 6)
79 #define NFS_ATTR_FATTR_PRESIZE (1U << 7)
80 #define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8)
81 #define NFS_ATTR_FATTR_SPACE_USED (1U << 9)
82 #define NFS_ATTR_FATTR_FSID (1U << 10)
83 #define NFS_ATTR_FATTR_FILEID (1U << 11)
84 #define NFS_ATTR_FATTR_ATIME (1U << 12)
85 #define NFS_ATTR_FATTR_MTIME (1U << 13)
86 #define NFS_ATTR_FATTR_CTIME (1U << 14)
87 #define NFS_ATTR_FATTR_PREMTIME (1U << 15)
88 #define NFS_ATTR_FATTR_PRECTIME (1U << 16)
89 #define NFS_ATTR_FATTR_CHANGE (1U << 17)
90 #define NFS_ATTR_FATTR_PRECHANGE (1U << 18)
91 #define NFS_ATTR_FATTR_V4_LOCATIONS (1U << 19)
92 #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 20)
93 #define NFS_ATTR_FATTR_MOUNTPOINT (1U << 21)
94 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22)
95 #define NFS_ATTR_FATTR_OWNER_NAME (1U << 23)
96 #define NFS_ATTR_FATTR_GROUP_NAME (1U << 24)
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 u32 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 struct stateowner_id {
316 __u64 create_time;
317 __u32 uniquifier;
318 };
319
320 /*
321 * Arguments to the open call.
322 */
323 struct nfs_openargs {
324 const struct nfs_fh * fh;
325 struct nfs_seqid * seqid;
326 int open_flags;
327 fmode_t fmode;
328 __u64 clientid;
329 struct stateowner_id id;
330 union {
331 struct {
332 struct iattr * attrs; /* UNCHECKED, GUARDED */
333 nfs4_verifier verifier; /* EXCLUSIVE */
334 };
335 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
336 fmode_t delegation_type; /* CLAIM_PREVIOUS */
337 } u;
338 const struct qstr * name;
339 const struct nfs_server *server; /* Needed for ID mapping */
340 const u32 * bitmask;
341 const u32 * dir_bitmask;
342 __u32 claim;
343 struct nfs4_sequence_args seq_args;
344 };
345
346 struct nfs_openres {
347 nfs4_stateid stateid;
348 struct nfs_fh fh;
349 struct nfs4_change_info cinfo;
350 __u32 rflags;
351 struct nfs_fattr * f_attr;
352 struct nfs_fattr * dir_attr;
353 struct nfs_seqid * seqid;
354 const struct nfs_server *server;
355 fmode_t delegation_type;
356 nfs4_stateid delegation;
357 __u32 do_recall;
358 __u64 maxsize;
359 __u32 attrset[NFS4_BITMAP_SIZE];
360 struct nfs4_string *owner;
361 struct nfs4_string *group_owner;
362 struct nfs4_sequence_res seq_res;
363 };
364
365 /*
366 * Arguments to the open_confirm call.
367 */
368 struct nfs_open_confirmargs {
369 const struct nfs_fh * fh;
370 nfs4_stateid * stateid;
371 struct nfs_seqid * seqid;
372 };
373
374 struct nfs_open_confirmres {
375 nfs4_stateid stateid;
376 struct nfs_seqid * seqid;
377 };
378
379 /*
380 * Arguments to the close call.
381 */
382 struct nfs_closeargs {
383 struct nfs_fh * fh;
384 nfs4_stateid * stateid;
385 struct nfs_seqid * seqid;
386 fmode_t fmode;
387 const u32 * bitmask;
388 struct nfs4_sequence_args seq_args;
389 };
390
391 struct nfs_closeres {
392 nfs4_stateid stateid;
393 struct nfs_fattr * fattr;
394 struct nfs_seqid * seqid;
395 const struct nfs_server *server;
396 struct nfs4_sequence_res seq_res;
397 };
398 /*
399 * * Arguments to the lock,lockt, and locku call.
400 * */
401 struct nfs_lowner {
402 __u64 clientid;
403 __u64 id;
404 dev_t s_dev;
405 };
406
407 struct nfs_lock_args {
408 struct nfs_fh * fh;
409 struct file_lock * fl;
410 struct nfs_seqid * lock_seqid;
411 nfs4_stateid * lock_stateid;
412 struct nfs_seqid * open_seqid;
413 nfs4_stateid * open_stateid;
414 struct nfs_lowner lock_owner;
415 unsigned char block : 1;
416 unsigned char reclaim : 1;
417 unsigned char new_lock_owner : 1;
418 struct nfs4_sequence_args seq_args;
419 };
420
421 struct nfs_lock_res {
422 nfs4_stateid stateid;
423 struct nfs_seqid * lock_seqid;
424 struct nfs_seqid * open_seqid;
425 struct nfs4_sequence_res seq_res;
426 };
427
428 struct nfs_locku_args {
429 struct nfs_fh * fh;
430 struct file_lock * fl;
431 struct nfs_seqid * seqid;
432 nfs4_stateid * stateid;
433 struct nfs4_sequence_args seq_args;
434 };
435
436 struct nfs_locku_res {
437 nfs4_stateid stateid;
438 struct nfs_seqid * seqid;
439 struct nfs4_sequence_res seq_res;
440 };
441
442 struct nfs_lockt_args {
443 struct nfs_fh * fh;
444 struct file_lock * fl;
445 struct nfs_lowner lock_owner;
446 struct nfs4_sequence_args seq_args;
447 };
448
449 struct nfs_lockt_res {
450 struct file_lock * denied; /* LOCK, LOCKT failed */
451 struct nfs4_sequence_res seq_res;
452 };
453
454 struct nfs_release_lockowner_args {
455 struct nfs_lowner lock_owner;
456 };
457
458 struct nfs4_delegreturnargs {
459 const struct nfs_fh *fhandle;
460 const nfs4_stateid *stateid;
461 const u32 * bitmask;
462 struct nfs4_sequence_args seq_args;
463 };
464
465 struct nfs4_delegreturnres {
466 struct nfs_fattr * fattr;
467 const struct nfs_server *server;
468 struct nfs4_sequence_res seq_res;
469 };
470
471 /*
472 * Arguments to the read call.
473 */
474 struct nfs_readargs {
475 struct nfs_fh * fh;
476 struct nfs_open_context *context;
477 struct nfs_lock_context *lock_context;
478 __u64 offset;
479 __u32 count;
480 unsigned int pgbase;
481 struct page ** pages;
482 struct nfs4_sequence_args seq_args;
483 };
484
485 struct nfs_readres {
486 struct nfs_fattr * fattr;
487 __u32 count;
488 int eof;
489 struct nfs4_sequence_res seq_res;
490 };
491
492 /*
493 * Arguments to the write call.
494 */
495 struct nfs_writeargs {
496 struct nfs_fh * fh;
497 struct nfs_open_context *context;
498 struct nfs_lock_context *lock_context;
499 __u64 offset;
500 __u32 count;
501 enum nfs3_stable_how stable;
502 unsigned int pgbase;
503 struct page ** pages;
504 const u32 * bitmask;
505 struct nfs4_sequence_args seq_args;
506 };
507
508 struct nfs_writeverf {
509 enum nfs3_stable_how committed;
510 __be32 verifier[2];
511 };
512
513 struct nfs_writeres {
514 struct nfs_fattr * fattr;
515 struct nfs_writeverf * verf;
516 __u32 count;
517 const struct nfs_server *server;
518 struct nfs4_sequence_res seq_res;
519 };
520
521 /*
522 * Common arguments to the unlink call
523 */
524 struct nfs_removeargs {
525 const struct nfs_fh *fh;
526 struct qstr name;
527 const u32 * bitmask;
528 struct nfs4_sequence_args seq_args;
529 };
530
531 struct nfs_removeres {
532 const struct nfs_server *server;
533 struct nfs_fattr *dir_attr;
534 struct nfs4_change_info cinfo;
535 struct nfs4_sequence_res seq_res;
536 };
537
538 /*
539 * Common arguments to the rename call
540 */
541 struct nfs_renameargs {
542 const struct nfs_fh *old_dir;
543 const struct nfs_fh *new_dir;
544 const struct qstr *old_name;
545 const struct qstr *new_name;
546 const u32 *bitmask;
547 struct nfs4_sequence_args seq_args;
548 };
549
550 struct nfs_renameres {
551 const struct nfs_server *server;
552 struct nfs4_change_info old_cinfo;
553 struct nfs_fattr *old_fattr;
554 struct nfs4_change_info new_cinfo;
555 struct nfs_fattr *new_fattr;
556 struct nfs4_sequence_res seq_res;
557 };
558
559 /*
560 * Argument struct for decode_entry function
561 */
562 struct nfs_entry {
563 __u64 ino;
564 __u64 cookie,
565 prev_cookie;
566 const char * name;
567 unsigned int len;
568 int eof;
569 struct nfs_fh * fh;
570 struct nfs_fattr * fattr;
571 unsigned char d_type;
572 struct nfs_server * server;
573 };
574
575 /*
576 * The following types are for NFSv2 only.
577 */
578 struct nfs_sattrargs {
579 struct nfs_fh * fh;
580 struct iattr * sattr;
581 };
582
583 struct nfs_diropargs {
584 struct nfs_fh * fh;
585 const char * name;
586 unsigned int len;
587 };
588
589 struct nfs_createargs {
590 struct nfs_fh * fh;
591 const char * name;
592 unsigned int len;
593 struct iattr * sattr;
594 };
595
596 struct nfs_setattrargs {
597 struct nfs_fh * fh;
598 nfs4_stateid stateid;
599 struct iattr * iap;
600 const struct nfs_server * server; /* Needed for name mapping */
601 const u32 * bitmask;
602 struct nfs4_sequence_args seq_args;
603 };
604
605 struct nfs_setaclargs {
606 struct nfs_fh * fh;
607 size_t acl_len;
608 unsigned int acl_pgbase;
609 struct page ** acl_pages;
610 struct nfs4_sequence_args seq_args;
611 };
612
613 struct nfs_setaclres {
614 struct nfs4_sequence_res seq_res;
615 };
616
617 struct nfs_getaclargs {
618 struct nfs_fh * fh;
619 size_t acl_len;
620 unsigned int acl_pgbase;
621 struct page ** acl_pages;
622 struct nfs4_sequence_args seq_args;
623 };
624
625 /* getxattr ACL interface flags */
626 #define NFS4_ACL_LEN_REQUEST 0x0001 /* zero length getxattr buffer */
627 struct nfs_getaclres {
628 size_t acl_len;
629 size_t acl_data_offset;
630 int acl_flags;
631 struct page * acl_scratch;
632 struct nfs4_sequence_res seq_res;
633 };
634
635 struct nfs_setattrres {
636 struct nfs_fattr * fattr;
637 const struct nfs_server * server;
638 struct nfs4_sequence_res seq_res;
639 };
640
641 struct nfs_linkargs {
642 struct nfs_fh * fromfh;
643 struct nfs_fh * tofh;
644 const char * toname;
645 unsigned int tolen;
646 };
647
648 struct nfs_symlinkargs {
649 struct nfs_fh * fromfh;
650 const char * fromname;
651 unsigned int fromlen;
652 struct page ** pages;
653 unsigned int pathlen;
654 struct iattr * sattr;
655 };
656
657 struct nfs_readdirargs {
658 struct nfs_fh * fh;
659 __u32 cookie;
660 unsigned int count;
661 struct page ** pages;
662 };
663
664 struct nfs3_getaclargs {
665 struct nfs_fh * fh;
666 int mask;
667 struct page ** pages;
668 };
669
670 struct nfs3_setaclargs {
671 struct inode * inode;
672 int mask;
673 struct posix_acl * acl_access;
674 struct posix_acl * acl_default;
675 size_t len;
676 unsigned int npages;
677 struct page ** pages;
678 };
679
680 struct nfs_diropok {
681 struct nfs_fh * fh;
682 struct nfs_fattr * fattr;
683 };
684
685 struct nfs_readlinkargs {
686 struct nfs_fh * fh;
687 unsigned int pgbase;
688 unsigned int pglen;
689 struct page ** pages;
690 };
691
692 struct nfs3_sattrargs {
693 struct nfs_fh * fh;
694 struct iattr * sattr;
695 unsigned int guard;
696 struct timespec guardtime;
697 };
698
699 struct nfs3_diropargs {
700 struct nfs_fh * fh;
701 const char * name;
702 unsigned int len;
703 };
704
705 struct nfs3_accessargs {
706 struct nfs_fh * fh;
707 __u32 access;
708 };
709
710 struct nfs3_createargs {
711 struct nfs_fh * fh;
712 const char * name;
713 unsigned int len;
714 struct iattr * sattr;
715 enum nfs3_createmode createmode;
716 __be32 verifier[2];
717 };
718
719 struct nfs3_mkdirargs {
720 struct nfs_fh * fh;
721 const char * name;
722 unsigned int len;
723 struct iattr * sattr;
724 };
725
726 struct nfs3_symlinkargs {
727 struct nfs_fh * fromfh;
728 const char * fromname;
729 unsigned int fromlen;
730 struct page ** pages;
731 unsigned int pathlen;
732 struct iattr * sattr;
733 };
734
735 struct nfs3_mknodargs {
736 struct nfs_fh * fh;
737 const char * name;
738 unsigned int len;
739 enum nfs3_ftype type;
740 struct iattr * sattr;
741 dev_t rdev;
742 };
743
744 struct nfs3_linkargs {
745 struct nfs_fh * fromfh;
746 struct nfs_fh * tofh;
747 const char * toname;
748 unsigned int tolen;
749 };
750
751 struct nfs3_readdirargs {
752 struct nfs_fh * fh;
753 __u64 cookie;
754 __be32 verf[2];
755 int plus;
756 unsigned int count;
757 struct page ** pages;
758 };
759
760 struct nfs3_diropres {
761 struct nfs_fattr * dir_attr;
762 struct nfs_fh * fh;
763 struct nfs_fattr * fattr;
764 };
765
766 struct nfs3_accessres {
767 struct nfs_fattr * fattr;
768 __u32 access;
769 };
770
771 struct nfs3_readlinkargs {
772 struct nfs_fh * fh;
773 unsigned int pgbase;
774 unsigned int pglen;
775 struct page ** pages;
776 };
777
778 struct nfs3_linkres {
779 struct nfs_fattr * dir_attr;
780 struct nfs_fattr * fattr;
781 };
782
783 struct nfs3_readdirres {
784 struct nfs_fattr * dir_attr;
785 __be32 * verf;
786 int plus;
787 };
788
789 struct nfs3_getaclres {
790 struct nfs_fattr * fattr;
791 int mask;
792 unsigned int acl_access_count;
793 unsigned int acl_default_count;
794 struct posix_acl * acl_access;
795 struct posix_acl * acl_default;
796 };
797
798 #ifdef CONFIG_NFS_V4
799
800 typedef u64 clientid4;
801
802 struct nfs4_accessargs {
803 const struct nfs_fh * fh;
804 const u32 * bitmask;
805 u32 access;
806 struct nfs4_sequence_args seq_args;
807 };
808
809 struct nfs4_accessres {
810 const struct nfs_server * server;
811 struct nfs_fattr * fattr;
812 u32 supported;
813 u32 access;
814 struct nfs4_sequence_res seq_res;
815 };
816
817 struct nfs4_create_arg {
818 u32 ftype;
819 union {
820 struct {
821 struct page ** pages;
822 unsigned int len;
823 } symlink; /* NF4LNK */
824 struct {
825 u32 specdata1;
826 u32 specdata2;
827 } device; /* NF4BLK, NF4CHR */
828 } u;
829 const struct qstr * name;
830 const struct nfs_server * server;
831 const struct iattr * attrs;
832 const struct nfs_fh * dir_fh;
833 const u32 * bitmask;
834 struct nfs4_sequence_args seq_args;
835 };
836
837 struct nfs4_create_res {
838 const struct nfs_server * server;
839 struct nfs_fh * fh;
840 struct nfs_fattr * fattr;
841 struct nfs4_change_info dir_cinfo;
842 struct nfs_fattr * dir_fattr;
843 struct nfs4_sequence_res seq_res;
844 };
845
846 struct nfs4_fsinfo_arg {
847 const struct nfs_fh * fh;
848 const u32 * bitmask;
849 struct nfs4_sequence_args seq_args;
850 };
851
852 struct nfs4_fsinfo_res {
853 struct nfs_fsinfo *fsinfo;
854 struct nfs4_sequence_res seq_res;
855 };
856
857 struct nfs4_getattr_arg {
858 const struct nfs_fh * fh;
859 const u32 * bitmask;
860 struct nfs4_sequence_args seq_args;
861 };
862
863 struct nfs4_getattr_res {
864 const struct nfs_server * server;
865 struct nfs_fattr * fattr;
866 struct nfs4_sequence_res seq_res;
867 };
868
869 struct nfs4_link_arg {
870 const struct nfs_fh * fh;
871 const struct nfs_fh * dir_fh;
872 const struct qstr * name;
873 const u32 * bitmask;
874 struct nfs4_sequence_args seq_args;
875 };
876
877 struct nfs4_link_res {
878 const struct nfs_server * server;
879 struct nfs_fattr * fattr;
880 struct nfs4_change_info cinfo;
881 struct nfs_fattr * dir_attr;
882 struct nfs4_sequence_res seq_res;
883 };
884
885
886 struct nfs4_lookup_arg {
887 const struct nfs_fh * dir_fh;
888 const struct qstr * name;
889 const u32 * bitmask;
890 struct nfs4_sequence_args seq_args;
891 };
892
893 struct nfs4_lookup_res {
894 const struct nfs_server * server;
895 struct nfs_fattr * fattr;
896 struct nfs_fh * fh;
897 struct nfs4_sequence_res seq_res;
898 };
899
900 struct nfs4_lookup_root_arg {
901 const u32 * bitmask;
902 struct nfs4_sequence_args seq_args;
903 };
904
905 struct nfs4_pathconf_arg {
906 const struct nfs_fh * fh;
907 const u32 * bitmask;
908 struct nfs4_sequence_args seq_args;
909 };
910
911 struct nfs4_pathconf_res {
912 struct nfs_pathconf *pathconf;
913 struct nfs4_sequence_res seq_res;
914 };
915
916 struct nfs4_readdir_arg {
917 const struct nfs_fh * fh;
918 u64 cookie;
919 nfs4_verifier verifier;
920 u32 count;
921 struct page ** pages; /* zero-copy data */
922 unsigned int pgbase; /* zero-copy data */
923 const u32 * bitmask;
924 int plus;
925 struct nfs4_sequence_args seq_args;
926 };
927
928 struct nfs4_readdir_res {
929 nfs4_verifier verifier;
930 unsigned int pgbase;
931 struct nfs4_sequence_res seq_res;
932 };
933
934 struct nfs4_readlink {
935 const struct nfs_fh * fh;
936 unsigned int pgbase;
937 unsigned int pglen; /* zero-copy data */
938 struct page ** pages; /* zero-copy data */
939 struct nfs4_sequence_args seq_args;
940 };
941
942 struct nfs4_readlink_res {
943 struct nfs4_sequence_res seq_res;
944 };
945
946 #define NFS4_SETCLIENTID_NAMELEN (127)
947 struct nfs4_setclientid {
948 const nfs4_verifier * sc_verifier;
949 unsigned int sc_name_len;
950 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
951 u32 sc_prog;
952 unsigned int sc_netid_len;
953 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
954 unsigned int sc_uaddr_len;
955 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
956 u32 sc_cb_ident;
957 };
958
959 struct nfs4_setclientid_res {
960 u64 clientid;
961 nfs4_verifier confirm;
962 };
963
964 struct nfs4_statfs_arg {
965 const struct nfs_fh * fh;
966 const u32 * bitmask;
967 struct nfs4_sequence_args seq_args;
968 };
969
970 struct nfs4_statfs_res {
971 struct nfs_fsstat *fsstat;
972 struct nfs4_sequence_res seq_res;
973 };
974
975 struct nfs4_server_caps_arg {
976 struct nfs_fh *fhandle;
977 struct nfs4_sequence_args seq_args;
978 };
979
980 struct nfs4_server_caps_res {
981 u32 attr_bitmask[3];
982 u32 acl_bitmask;
983 u32 has_links;
984 u32 has_symlinks;
985 u32 fh_expire_type;
986 struct nfs4_sequence_res seq_res;
987 };
988
989 #define NFS4_PATHNAME_MAXCOMPONENTS 512
990 struct nfs4_pathname {
991 unsigned int ncomponents;
992 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
993 };
994
995 #define NFS4_FS_LOCATION_MAXSERVERS 10
996 struct nfs4_fs_location {
997 unsigned int nservers;
998 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
999 struct nfs4_pathname rootpath;
1000 };
1001
1002 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1003 struct nfs4_fs_locations {
1004 struct nfs_fattr fattr;
1005 const struct nfs_server *server;
1006 struct nfs4_pathname fs_path;
1007 int nlocations;
1008 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
1009 };
1010
1011 struct nfs4_fs_locations_arg {
1012 const struct nfs_fh *dir_fh;
1013 const struct qstr *name;
1014 struct page *page;
1015 const u32 *bitmask;
1016 struct nfs4_sequence_args seq_args;
1017 };
1018
1019 struct nfs4_fs_locations_res {
1020 struct nfs4_fs_locations *fs_locations;
1021 struct nfs4_sequence_res seq_res;
1022 };
1023
1024 struct nfs4_secinfo_oid {
1025 unsigned int len;
1026 char data[GSS_OID_MAX_LEN];
1027 };
1028
1029 struct nfs4_secinfo_gss {
1030 struct nfs4_secinfo_oid sec_oid4;
1031 unsigned int qop4;
1032 unsigned int service;
1033 };
1034
1035 struct nfs4_secinfo_flavor {
1036 unsigned int flavor;
1037 struct nfs4_secinfo_gss gss;
1038 };
1039
1040 struct nfs4_secinfo_flavors {
1041 unsigned int num_flavors;
1042 struct nfs4_secinfo_flavor flavors[0];
1043 };
1044
1045 struct nfs4_secinfo_arg {
1046 const struct nfs_fh *dir_fh;
1047 const struct qstr *name;
1048 struct nfs4_sequence_args seq_args;
1049 };
1050
1051 struct nfs4_secinfo_res {
1052 struct nfs4_secinfo_flavors *flavors;
1053 struct nfs4_sequence_res seq_res;
1054 };
1055
1056 #endif /* CONFIG_NFS_V4 */
1057
1058 struct nfstime4 {
1059 u64 seconds;
1060 u32 nseconds;
1061 };
1062
1063 #ifdef CONFIG_NFS_V4_1
1064 #define NFS4_EXCHANGE_ID_LEN (48)
1065 struct nfs41_exchange_id_args {
1066 struct nfs_client *client;
1067 nfs4_verifier *verifier;
1068 unsigned int id_len;
1069 char id[NFS4_EXCHANGE_ID_LEN];
1070 u32 flags;
1071 };
1072
1073 struct server_owner {
1074 uint64_t minor_id;
1075 uint32_t major_id_sz;
1076 char major_id[NFS4_OPAQUE_LIMIT];
1077 };
1078
1079 struct server_scope {
1080 uint32_t server_scope_sz;
1081 char server_scope[NFS4_OPAQUE_LIMIT];
1082 };
1083
1084 struct nfs41_impl_id {
1085 char domain[NFS4_OPAQUE_LIMIT + 1];
1086 char name[NFS4_OPAQUE_LIMIT + 1];
1087 struct nfstime4 date;
1088 };
1089
1090 struct nfs41_exchange_id_res {
1091 struct nfs_client *client;
1092 u32 flags;
1093 struct server_scope *server_scope;
1094 struct nfs41_impl_id *impl_id;
1095 };
1096
1097 struct nfs41_create_session_args {
1098 struct nfs_client *client;
1099 uint32_t flags;
1100 uint32_t cb_program;
1101 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1102 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1103 };
1104
1105 struct nfs41_create_session_res {
1106 struct nfs_client *client;
1107 };
1108
1109 struct nfs41_reclaim_complete_args {
1110 /* In the future extend to include curr_fh for use with migration */
1111 unsigned char one_fs:1;
1112 struct nfs4_sequence_args seq_args;
1113 };
1114
1115 struct nfs41_reclaim_complete_res {
1116 struct nfs4_sequence_res seq_res;
1117 };
1118
1119 #define SECINFO_STYLE_CURRENT_FH 0
1120 #define SECINFO_STYLE_PARENT 1
1121 struct nfs41_secinfo_no_name_args {
1122 int style;
1123 struct nfs4_sequence_args seq_args;
1124 };
1125
1126 struct nfs41_test_stateid_args {
1127 nfs4_stateid *stateid;
1128 struct nfs4_sequence_args seq_args;
1129 };
1130
1131 struct nfs41_test_stateid_res {
1132 unsigned int status;
1133 struct nfs4_sequence_res seq_res;
1134 };
1135
1136 struct nfs41_free_stateid_args {
1137 nfs4_stateid *stateid;
1138 struct nfs4_sequence_args seq_args;
1139 };
1140
1141 struct nfs41_free_stateid_res {
1142 unsigned int status;
1143 struct nfs4_sequence_res seq_res;
1144 };
1145
1146 #endif /* CONFIG_NFS_V4_1 */
1147
1148 struct nfs_page;
1149
1150 #define NFS_PAGEVEC_SIZE (8U)
1151
1152 struct nfs_read_data {
1153 struct rpc_task task;
1154 struct inode *inode;
1155 struct rpc_cred *cred;
1156 struct nfs_fattr fattr; /* fattr storage */
1157 struct list_head pages; /* Coalesced read requests */
1158 struct list_head list; /* lists of struct nfs_read_data */
1159 struct nfs_page *req; /* multi ops per nfs_page */
1160 struct page **pagevec;
1161 unsigned int npages; /* Max length of pagevec */
1162 struct nfs_readargs args;
1163 struct nfs_readres res;
1164 unsigned long timestamp; /* For lease renewal */
1165 struct pnfs_layout_segment *lseg;
1166 struct nfs_client *ds_clp; /* pNFS data server */
1167 const struct rpc_call_ops *mds_ops;
1168 int (*read_done_cb) (struct rpc_task *task, struct nfs_read_data *data);
1169 __u64 mds_offset;
1170 int pnfs_error;
1171 struct page *page_array[NFS_PAGEVEC_SIZE];
1172 };
1173
1174 struct nfs_write_data {
1175 struct rpc_task task;
1176 struct inode *inode;
1177 struct rpc_cred *cred;
1178 struct nfs_fattr fattr;
1179 struct nfs_writeverf verf;
1180 struct list_head pages; /* Coalesced requests we wish to flush */
1181 struct list_head list; /* lists of struct nfs_write_data */
1182 struct nfs_page *req; /* multi ops per nfs_page */
1183 struct page **pagevec;
1184 unsigned int npages; /* Max length of pagevec */
1185 struct nfs_writeargs args; /* argument struct */
1186 struct nfs_writeres res; /* result struct */
1187 struct pnfs_layout_segment *lseg;
1188 struct nfs_client *ds_clp; /* pNFS data server */
1189 int ds_commit_index;
1190 const struct rpc_call_ops *mds_ops;
1191 int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data);
1192 #ifdef CONFIG_NFS_V4
1193 unsigned long timestamp; /* For lease renewal */
1194 #endif
1195 __u64 mds_offset; /* Filelayout dense stripe */
1196 int pnfs_error;
1197 struct page *page_array[NFS_PAGEVEC_SIZE];
1198 };
1199
1200 struct nfs_unlinkdata {
1201 struct hlist_node list;
1202 struct nfs_removeargs args;
1203 struct nfs_removeres res;
1204 struct inode *dir;
1205 struct rpc_cred *cred;
1206 struct nfs_fattr dir_attr;
1207 };
1208
1209 struct nfs_renamedata {
1210 struct nfs_renameargs args;
1211 struct nfs_renameres res;
1212 struct rpc_cred *cred;
1213 struct inode *old_dir;
1214 struct dentry *old_dentry;
1215 struct nfs_fattr old_fattr;
1216 struct inode *new_dir;
1217 struct dentry *new_dentry;
1218 struct nfs_fattr new_fattr;
1219 };
1220
1221 struct nfs_access_entry;
1222 struct nfs_client;
1223 struct rpc_timeout;
1224
1225 /*
1226 * RPC procedure vector for NFSv2/NFSv3 demuxing
1227 */
1228 struct nfs_rpc_ops {
1229 u32 version; /* Protocol version */
1230 const struct dentry_operations *dentry_ops;
1231 const struct inode_operations *dir_inode_ops;
1232 const struct inode_operations *file_inode_ops;
1233 const struct file_operations *file_ops;
1234
1235 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1236 struct nfs_fsinfo *);
1237 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1238 struct nfs_fattr *);
1239 int (*setattr) (struct dentry *, struct nfs_fattr *,
1240 struct iattr *);
1241 int (*lookup) (struct rpc_clnt *clnt, struct inode *, struct qstr *,
1242 struct nfs_fh *, struct nfs_fattr *);
1243 int (*access) (struct inode *, struct nfs_access_entry *);
1244 int (*readlink)(struct inode *, struct page *, unsigned int,
1245 unsigned int);
1246 int (*create) (struct inode *, struct dentry *,
1247 struct iattr *, int, struct nfs_open_context *);
1248 int (*remove) (struct inode *, struct qstr *);
1249 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1250 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
1251 int (*unlink_done) (struct rpc_task *, struct inode *);
1252 int (*rename) (struct inode *, struct qstr *,
1253 struct inode *, struct qstr *);
1254 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1255 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
1256 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1257 int (*link) (struct inode *, struct inode *, struct qstr *);
1258 int (*symlink) (struct inode *, struct dentry *, struct page *,
1259 unsigned int, struct iattr *);
1260 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1261 int (*rmdir) (struct inode *, struct qstr *);
1262 int (*readdir) (struct dentry *, struct rpc_cred *,
1263 u64, struct page **, unsigned int, int);
1264 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1265 dev_t);
1266 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1267 struct nfs_fsstat *);
1268 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1269 struct nfs_fsinfo *);
1270 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1271 struct nfs_pathconf *);
1272 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1273 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1274 void (*read_setup) (struct nfs_read_data *, struct rpc_message *);
1275 void (*read_rpc_prepare)(struct rpc_task *, struct nfs_read_data *);
1276 int (*read_done) (struct rpc_task *, struct nfs_read_data *);
1277 void (*write_setup) (struct nfs_write_data *, struct rpc_message *);
1278 void (*write_rpc_prepare)(struct rpc_task *, struct nfs_write_data *);
1279 int (*write_done) (struct rpc_task *, struct nfs_write_data *);
1280 void (*commit_setup) (struct nfs_write_data *, struct rpc_message *);
1281 int (*commit_done) (struct rpc_task *, struct nfs_write_data *);
1282 int (*lock)(struct file *, int, struct file_lock *);
1283 int (*lock_check_bounds)(const struct file_lock *);
1284 void (*clear_acl_cache)(struct inode *);
1285 void (*close_context)(struct nfs_open_context *ctx, int);
1286 struct inode * (*open_context) (struct inode *dir,
1287 struct nfs_open_context *ctx,
1288 int open_flags,
1289 struct iattr *iattr);
1290 int (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1291 const char *, rpc_authflavor_t, int);
1292 int (*secinfo)(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *);
1293 };
1294
1295 /*
1296 * NFS_CALL(getattr, inode, (fattr));
1297 * into
1298 * NFS_PROTO(inode)->getattr(fattr);
1299 */
1300 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1301
1302 /*
1303 * Function vectors etc. for the NFS client
1304 */
1305 extern const struct nfs_rpc_ops nfs_v2_clientops;
1306 extern const struct nfs_rpc_ops nfs_v3_clientops;
1307 extern const struct nfs_rpc_ops nfs_v4_clientops;
1308 extern const struct rpc_version nfs_version2;
1309 extern const struct rpc_version nfs_version3;
1310 extern const struct rpc_version nfs_version4;
1311
1312 extern const struct rpc_version nfsacl_version3;
1313 extern const struct rpc_program nfsacl_program;
1314
1315 #endif
1316