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Merge remote-tracking branch 'mkp-scsi/4.9/scsi-fixes' into fixes
[mirror_ubuntu-artful-kernel.git] / include / linux / nfs_xdr.h
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 struct nfs4_string {
18 unsigned int len;
19 char *data;
20 };
21
22 struct nfs_fsid {
23 uint64_t major;
24 uint64_t minor;
25 };
26
27 /*
28 * Helper for checking equality between 2 fsids.
29 */
30 static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b)
31 {
32 return a->major == b->major && a->minor == b->minor;
33 }
34
35 struct nfs4_threshold {
36 __u32 bm;
37 __u32 l_type;
38 __u64 rd_sz;
39 __u64 wr_sz;
40 __u64 rd_io_sz;
41 __u64 wr_io_sz;
42 };
43
44 struct nfs_fattr {
45 unsigned int valid; /* which fields are valid */
46 umode_t mode;
47 __u32 nlink;
48 kuid_t uid;
49 kgid_t gid;
50 dev_t rdev;
51 __u64 size;
52 union {
53 struct {
54 __u32 blocksize;
55 __u32 blocks;
56 } nfs2;
57 struct {
58 __u64 used;
59 } nfs3;
60 } du;
61 struct nfs_fsid fsid;
62 __u64 fileid;
63 __u64 mounted_on_fileid;
64 struct timespec atime;
65 struct timespec mtime;
66 struct timespec ctime;
67 __u64 change_attr; /* NFSv4 change attribute */
68 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */
69 __u64 pre_size; /* pre_op_attr.size */
70 struct timespec pre_mtime; /* pre_op_attr.mtime */
71 struct timespec pre_ctime; /* pre_op_attr.ctime */
72 unsigned long time_start;
73 unsigned long gencount;
74 struct nfs4_string *owner_name;
75 struct nfs4_string *group_name;
76 struct nfs4_threshold *mdsthreshold; /* pNFS threshold hints */
77 };
78
79 #define NFS_ATTR_FATTR_TYPE (1U << 0)
80 #define NFS_ATTR_FATTR_MODE (1U << 1)
81 #define NFS_ATTR_FATTR_NLINK (1U << 2)
82 #define NFS_ATTR_FATTR_OWNER (1U << 3)
83 #define NFS_ATTR_FATTR_GROUP (1U << 4)
84 #define NFS_ATTR_FATTR_RDEV (1U << 5)
85 #define NFS_ATTR_FATTR_SIZE (1U << 6)
86 #define NFS_ATTR_FATTR_PRESIZE (1U << 7)
87 #define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8)
88 #define NFS_ATTR_FATTR_SPACE_USED (1U << 9)
89 #define NFS_ATTR_FATTR_FSID (1U << 10)
90 #define NFS_ATTR_FATTR_FILEID (1U << 11)
91 #define NFS_ATTR_FATTR_ATIME (1U << 12)
92 #define NFS_ATTR_FATTR_MTIME (1U << 13)
93 #define NFS_ATTR_FATTR_CTIME (1U << 14)
94 #define NFS_ATTR_FATTR_PREMTIME (1U << 15)
95 #define NFS_ATTR_FATTR_PRECTIME (1U << 16)
96 #define NFS_ATTR_FATTR_CHANGE (1U << 17)
97 #define NFS_ATTR_FATTR_PRECHANGE (1U << 18)
98 #define NFS_ATTR_FATTR_V4_LOCATIONS (1U << 19)
99 #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 20)
100 #define NFS_ATTR_FATTR_MOUNTPOINT (1U << 21)
101 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22)
102 #define NFS_ATTR_FATTR_OWNER_NAME (1U << 23)
103 #define NFS_ATTR_FATTR_GROUP_NAME (1U << 24)
104 #define NFS_ATTR_FATTR_V4_SECURITY_LABEL (1U << 25)
105
106 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
107 | NFS_ATTR_FATTR_MODE \
108 | NFS_ATTR_FATTR_NLINK \
109 | NFS_ATTR_FATTR_OWNER \
110 | NFS_ATTR_FATTR_GROUP \
111 | NFS_ATTR_FATTR_RDEV \
112 | NFS_ATTR_FATTR_SIZE \
113 | NFS_ATTR_FATTR_FSID \
114 | NFS_ATTR_FATTR_FILEID \
115 | NFS_ATTR_FATTR_ATIME \
116 | NFS_ATTR_FATTR_MTIME \
117 | NFS_ATTR_FATTR_CTIME \
118 | NFS_ATTR_FATTR_CHANGE)
119 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
120 | NFS_ATTR_FATTR_BLOCKS_USED)
121 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
122 | NFS_ATTR_FATTR_SPACE_USED)
123 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
124 | NFS_ATTR_FATTR_SPACE_USED \
125 | NFS_ATTR_FATTR_V4_SECURITY_LABEL)
126
127 /*
128 * Maximal number of supported layout drivers.
129 */
130 #define NFS_MAX_LAYOUT_TYPES 8
131
132 /*
133 * Info on the file system
134 */
135 struct nfs_fsinfo {
136 struct nfs_fattr *fattr; /* Post-op attributes */
137 __u32 rtmax; /* max. read transfer size */
138 __u32 rtpref; /* pref. read transfer size */
139 __u32 rtmult; /* reads should be multiple of this */
140 __u32 wtmax; /* max. write transfer size */
141 __u32 wtpref; /* pref. write transfer size */
142 __u32 wtmult; /* writes should be multiple of this */
143 __u32 dtpref; /* pref. readdir transfer size */
144 __u64 maxfilesize;
145 struct timespec time_delta; /* server time granularity */
146 __u32 lease_time; /* in seconds */
147 __u32 nlayouttypes; /* number of layouttypes */
148 __u32 layouttype[NFS_MAX_LAYOUT_TYPES]; /* supported pnfs layout driver */
149 __u32 blksize; /* preferred pnfs io block size */
150 __u32 clone_blksize; /* granularity of a CLONE operation */
151 };
152
153 struct nfs_fsstat {
154 struct nfs_fattr *fattr; /* Post-op attributes */
155 __u64 tbytes; /* total size in bytes */
156 __u64 fbytes; /* # of free bytes */
157 __u64 abytes; /* # of bytes available to user */
158 __u64 tfiles; /* # of files */
159 __u64 ffiles; /* # of free files */
160 __u64 afiles; /* # of files available to user */
161 };
162
163 struct nfs2_fsstat {
164 __u32 tsize; /* Server transfer size */
165 __u32 bsize; /* Filesystem block size */
166 __u32 blocks; /* No. of "bsize" blocks on filesystem */
167 __u32 bfree; /* No. of free "bsize" blocks */
168 __u32 bavail; /* No. of available "bsize" blocks */
169 };
170
171 struct nfs_pathconf {
172 struct nfs_fattr *fattr; /* Post-op attributes */
173 __u32 max_link; /* max # of hard links */
174 __u32 max_namelen; /* max name length */
175 };
176
177 struct nfs4_change_info {
178 u32 atomic;
179 u64 before;
180 u64 after;
181 };
182
183 struct nfs_seqid;
184
185 /* nfs41 sessions channel attributes */
186 struct nfs4_channel_attrs {
187 u32 max_rqst_sz;
188 u32 max_resp_sz;
189 u32 max_resp_sz_cached;
190 u32 max_ops;
191 u32 max_reqs;
192 };
193
194 struct nfs4_slot;
195 struct nfs4_sequence_args {
196 struct nfs4_slot *sa_slot;
197 u8 sa_cache_this : 1,
198 sa_privileged : 1;
199 };
200
201 struct nfs4_sequence_res {
202 struct nfs4_slot *sr_slot; /* slot used to send request */
203 unsigned long sr_timestamp;
204 int sr_status; /* sequence operation status */
205 u32 sr_status_flags;
206 u32 sr_highest_slotid;
207 u32 sr_target_highest_slotid;
208 };
209
210 struct nfs4_get_lease_time_args {
211 struct nfs4_sequence_args la_seq_args;
212 };
213
214 struct nfs4_get_lease_time_res {
215 struct nfs4_sequence_res lr_seq_res;
216 struct nfs_fsinfo *lr_fsinfo;
217 };
218
219 #define PNFS_LAYOUT_MAXSIZE 4096
220
221 struct nfs4_layoutdriver_data {
222 struct page **pages;
223 __u32 pglen;
224 __u32 len;
225 };
226
227 struct pnfs_layout_range {
228 u32 iomode;
229 u64 offset;
230 u64 length;
231 };
232
233 struct nfs4_layoutget_args {
234 struct nfs4_sequence_args seq_args;
235 __u32 type;
236 struct pnfs_layout_range range;
237 __u64 minlength;
238 __u32 maxcount;
239 struct inode *inode;
240 struct nfs_open_context *ctx;
241 nfs4_stateid stateid;
242 struct nfs4_layoutdriver_data layout;
243 };
244
245 struct nfs4_layoutget_res {
246 struct nfs4_sequence_res seq_res;
247 __u32 return_on_close;
248 struct pnfs_layout_range range;
249 __u32 type;
250 nfs4_stateid stateid;
251 struct nfs4_layoutdriver_data *layoutp;
252 };
253
254 struct nfs4_layoutget {
255 struct nfs4_layoutget_args args;
256 struct nfs4_layoutget_res res;
257 struct rpc_cred *cred;
258 gfp_t gfp_flags;
259 };
260
261 struct nfs4_getdeviceinfo_args {
262 struct nfs4_sequence_args seq_args;
263 struct pnfs_device *pdev;
264 __u32 notify_types;
265 };
266
267 struct nfs4_getdeviceinfo_res {
268 struct nfs4_sequence_res seq_res;
269 struct pnfs_device *pdev;
270 __u32 notification;
271 };
272
273 struct nfs4_layoutcommit_args {
274 struct nfs4_sequence_args seq_args;
275 nfs4_stateid stateid;
276 __u64 lastbytewritten;
277 struct inode *inode;
278 const u32 *bitmask;
279 size_t layoutupdate_len;
280 struct page *layoutupdate_page;
281 struct page **layoutupdate_pages;
282 __be32 *start_p;
283 };
284
285 struct nfs4_layoutcommit_res {
286 struct nfs4_sequence_res seq_res;
287 struct nfs_fattr *fattr;
288 const struct nfs_server *server;
289 int status;
290 };
291
292 struct nfs4_layoutcommit_data {
293 struct rpc_task task;
294 struct nfs_fattr fattr;
295 struct list_head lseg_list;
296 struct rpc_cred *cred;
297 struct inode *inode;
298 struct nfs4_layoutcommit_args args;
299 struct nfs4_layoutcommit_res res;
300 };
301
302 struct nfs4_layoutreturn_args {
303 struct nfs4_sequence_args seq_args;
304 struct pnfs_layout_hdr *layout;
305 struct inode *inode;
306 struct pnfs_layout_range range;
307 nfs4_stateid stateid;
308 __u32 layout_type;
309 };
310
311 struct nfs4_layoutreturn_res {
312 struct nfs4_sequence_res seq_res;
313 u32 lrs_present;
314 nfs4_stateid stateid;
315 };
316
317 struct nfs4_layoutreturn {
318 struct nfs4_layoutreturn_args args;
319 struct nfs4_layoutreturn_res res;
320 struct rpc_cred *cred;
321 struct nfs_client *clp;
322 struct inode *inode;
323 int rpc_status;
324 };
325
326 #define PNFS_LAYOUTSTATS_MAXSIZE 256
327
328 struct nfs42_layoutstat_args;
329 struct nfs42_layoutstat_devinfo;
330 typedef void (*layoutstats_encode_t)(struct xdr_stream *,
331 struct nfs42_layoutstat_args *,
332 struct nfs42_layoutstat_devinfo *);
333
334 /* Per file per deviceid layoutstats */
335 struct nfs42_layoutstat_devinfo {
336 struct nfs4_deviceid dev_id;
337 __u64 offset;
338 __u64 length;
339 __u64 read_count;
340 __u64 read_bytes;
341 __u64 write_count;
342 __u64 write_bytes;
343 __u32 layout_type;
344 layoutstats_encode_t layoutstats_encode;
345 void *layout_private;
346 };
347
348 struct nfs42_layoutstat_args {
349 struct nfs4_sequence_args seq_args;
350 struct nfs_fh *fh;
351 struct inode *inode;
352 nfs4_stateid stateid;
353 int num_dev;
354 struct nfs42_layoutstat_devinfo *devinfo;
355 };
356
357 struct nfs42_layoutstat_res {
358 struct nfs4_sequence_res seq_res;
359 int num_dev;
360 int rpc_status;
361 };
362
363 struct nfs42_layoutstat_data {
364 struct inode *inode;
365 struct nfs42_layoutstat_args args;
366 struct nfs42_layoutstat_res res;
367 };
368
369 struct nfs42_clone_args {
370 struct nfs4_sequence_args seq_args;
371 struct nfs_fh *src_fh;
372 struct nfs_fh *dst_fh;
373 nfs4_stateid src_stateid;
374 nfs4_stateid dst_stateid;
375 __u64 src_offset;
376 __u64 dst_offset;
377 __u64 count;
378 const u32 *dst_bitmask;
379 };
380
381 struct nfs42_clone_res {
382 struct nfs4_sequence_res seq_res;
383 unsigned int rpc_status;
384 struct nfs_fattr *dst_fattr;
385 const struct nfs_server *server;
386 };
387
388 struct stateowner_id {
389 __u64 create_time;
390 __u32 uniquifier;
391 };
392
393 /*
394 * Arguments to the open call.
395 */
396 struct nfs_openargs {
397 struct nfs4_sequence_args seq_args;
398 const struct nfs_fh * fh;
399 struct nfs_seqid * seqid;
400 int open_flags;
401 fmode_t fmode;
402 u32 share_access;
403 u32 access;
404 __u64 clientid;
405 struct stateowner_id id;
406 union {
407 struct {
408 struct iattr * attrs; /* UNCHECKED, GUARDED, EXCLUSIVE4_1 */
409 nfs4_verifier verifier; /* EXCLUSIVE */
410 };
411 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
412 fmode_t delegation_type; /* CLAIM_PREVIOUS */
413 } u;
414 const struct qstr * name;
415 const struct nfs_server *server; /* Needed for ID mapping */
416 const u32 * bitmask;
417 const u32 * open_bitmap;
418 enum open_claim_type4 claim;
419 enum createmode4 createmode;
420 const struct nfs4_label *label;
421 };
422
423 struct nfs_openres {
424 struct nfs4_sequence_res seq_res;
425 nfs4_stateid stateid;
426 struct nfs_fh fh;
427 struct nfs4_change_info cinfo;
428 __u32 rflags;
429 struct nfs_fattr * f_attr;
430 struct nfs4_label *f_label;
431 struct nfs_seqid * seqid;
432 const struct nfs_server *server;
433 fmode_t delegation_type;
434 nfs4_stateid delegation;
435 unsigned long pagemod_limit;
436 __u32 do_recall;
437 __u32 attrset[NFS4_BITMAP_SIZE];
438 struct nfs4_string *owner;
439 struct nfs4_string *group_owner;
440 __u32 access_request;
441 __u32 access_supported;
442 __u32 access_result;
443 };
444
445 /*
446 * Arguments to the open_confirm call.
447 */
448 struct nfs_open_confirmargs {
449 struct nfs4_sequence_args seq_args;
450 const struct nfs_fh * fh;
451 nfs4_stateid * stateid;
452 struct nfs_seqid * seqid;
453 };
454
455 struct nfs_open_confirmres {
456 struct nfs4_sequence_res seq_res;
457 nfs4_stateid stateid;
458 struct nfs_seqid * seqid;
459 };
460
461 /*
462 * Arguments to the close call.
463 */
464 struct nfs_closeargs {
465 struct nfs4_sequence_args seq_args;
466 struct nfs_fh * fh;
467 nfs4_stateid stateid;
468 struct nfs_seqid * seqid;
469 fmode_t fmode;
470 u32 share_access;
471 const u32 * bitmask;
472 };
473
474 struct nfs_closeres {
475 struct nfs4_sequence_res seq_res;
476 nfs4_stateid stateid;
477 struct nfs_fattr * fattr;
478 struct nfs_seqid * seqid;
479 const struct nfs_server *server;
480 };
481 /*
482 * * Arguments to the lock,lockt, and locku call.
483 * */
484 struct nfs_lowner {
485 __u64 clientid;
486 __u64 id;
487 dev_t s_dev;
488 };
489
490 struct nfs_lock_args {
491 struct nfs4_sequence_args seq_args;
492 struct nfs_fh * fh;
493 struct file_lock * fl;
494 struct nfs_seqid * lock_seqid;
495 nfs4_stateid lock_stateid;
496 struct nfs_seqid * open_seqid;
497 nfs4_stateid open_stateid;
498 struct nfs_lowner lock_owner;
499 unsigned char block : 1;
500 unsigned char reclaim : 1;
501 unsigned char new_lock : 1;
502 unsigned char new_lock_owner : 1;
503 };
504
505 struct nfs_lock_res {
506 struct nfs4_sequence_res seq_res;
507 nfs4_stateid stateid;
508 struct nfs_seqid * lock_seqid;
509 struct nfs_seqid * open_seqid;
510 };
511
512 struct nfs_locku_args {
513 struct nfs4_sequence_args seq_args;
514 struct nfs_fh * fh;
515 struct file_lock * fl;
516 struct nfs_seqid * seqid;
517 nfs4_stateid stateid;
518 };
519
520 struct nfs_locku_res {
521 struct nfs4_sequence_res seq_res;
522 nfs4_stateid stateid;
523 struct nfs_seqid * seqid;
524 };
525
526 struct nfs_lockt_args {
527 struct nfs4_sequence_args seq_args;
528 struct nfs_fh * fh;
529 struct file_lock * fl;
530 struct nfs_lowner lock_owner;
531 };
532
533 struct nfs_lockt_res {
534 struct nfs4_sequence_res seq_res;
535 struct file_lock * denied; /* LOCK, LOCKT failed */
536 };
537
538 struct nfs_release_lockowner_args {
539 struct nfs4_sequence_args seq_args;
540 struct nfs_lowner lock_owner;
541 };
542
543 struct nfs_release_lockowner_res {
544 struct nfs4_sequence_res seq_res;
545 };
546
547 struct nfs4_delegreturnargs {
548 struct nfs4_sequence_args seq_args;
549 const struct nfs_fh *fhandle;
550 const nfs4_stateid *stateid;
551 const u32 * bitmask;
552 };
553
554 struct nfs4_delegreturnres {
555 struct nfs4_sequence_res seq_res;
556 struct nfs_fattr * fattr;
557 struct nfs_server *server;
558 };
559
560 /*
561 * Arguments to the write call.
562 */
563 struct nfs_write_verifier {
564 char data[8];
565 };
566
567 struct nfs_writeverf {
568 struct nfs_write_verifier verifier;
569 enum nfs3_stable_how committed;
570 };
571
572 /*
573 * Arguments shared by the read and write call.
574 */
575 struct nfs_pgio_args {
576 struct nfs4_sequence_args seq_args;
577 struct nfs_fh * fh;
578 struct nfs_open_context *context;
579 struct nfs_lock_context *lock_context;
580 nfs4_stateid stateid;
581 __u64 offset;
582 __u32 count;
583 unsigned int pgbase;
584 struct page ** pages;
585 const u32 * bitmask; /* used by write */
586 enum nfs3_stable_how stable; /* used by write */
587 };
588
589 struct nfs_pgio_res {
590 struct nfs4_sequence_res seq_res;
591 struct nfs_fattr * fattr;
592 __u32 count;
593 __u32 op_status;
594 int eof; /* used by read */
595 struct nfs_writeverf * verf; /* used by write */
596 const struct nfs_server *server; /* used by write */
597
598 };
599
600 /*
601 * Arguments to the commit call.
602 */
603 struct nfs_commitargs {
604 struct nfs4_sequence_args seq_args;
605 struct nfs_fh *fh;
606 __u64 offset;
607 __u32 count;
608 const u32 *bitmask;
609 };
610
611 struct nfs_commitres {
612 struct nfs4_sequence_res seq_res;
613 __u32 op_status;
614 struct nfs_fattr *fattr;
615 struct nfs_writeverf *verf;
616 const struct nfs_server *server;
617 };
618
619 /*
620 * Common arguments to the unlink call
621 */
622 struct nfs_removeargs {
623 struct nfs4_sequence_args seq_args;
624 const struct nfs_fh *fh;
625 struct qstr name;
626 };
627
628 struct nfs_removeres {
629 struct nfs4_sequence_res seq_res;
630 struct nfs_server *server;
631 struct nfs_fattr *dir_attr;
632 struct nfs4_change_info cinfo;
633 };
634
635 /*
636 * Common arguments to the rename call
637 */
638 struct nfs_renameargs {
639 struct nfs4_sequence_args seq_args;
640 const struct nfs_fh *old_dir;
641 const struct nfs_fh *new_dir;
642 const struct qstr *old_name;
643 const struct qstr *new_name;
644 };
645
646 struct nfs_renameres {
647 struct nfs4_sequence_res seq_res;
648 struct nfs_server *server;
649 struct nfs4_change_info old_cinfo;
650 struct nfs_fattr *old_fattr;
651 struct nfs4_change_info new_cinfo;
652 struct nfs_fattr *new_fattr;
653 };
654
655 /* parsed sec= options */
656 #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */
657 struct nfs_auth_info {
658 unsigned int flavor_len;
659 rpc_authflavor_t flavors[NFS_AUTH_INFO_MAX_FLAVORS];
660 };
661
662 /*
663 * Argument struct for decode_entry function
664 */
665 struct nfs_entry {
666 __u64 ino;
667 __u64 cookie,
668 prev_cookie;
669 const char * name;
670 unsigned int len;
671 int eof;
672 struct nfs_fh * fh;
673 struct nfs_fattr * fattr;
674 struct nfs4_label *label;
675 unsigned char d_type;
676 struct nfs_server * server;
677 };
678
679 /*
680 * The following types are for NFSv2 only.
681 */
682 struct nfs_sattrargs {
683 struct nfs_fh * fh;
684 struct iattr * sattr;
685 };
686
687 struct nfs_diropargs {
688 struct nfs_fh * fh;
689 const char * name;
690 unsigned int len;
691 };
692
693 struct nfs_createargs {
694 struct nfs_fh * fh;
695 const char * name;
696 unsigned int len;
697 struct iattr * sattr;
698 };
699
700 struct nfs_setattrargs {
701 struct nfs4_sequence_args seq_args;
702 struct nfs_fh * fh;
703 nfs4_stateid stateid;
704 struct iattr * iap;
705 const struct nfs_server * server; /* Needed for name mapping */
706 const u32 * bitmask;
707 const struct nfs4_label *label;
708 };
709
710 struct nfs_setaclargs {
711 struct nfs4_sequence_args seq_args;
712 struct nfs_fh * fh;
713 size_t acl_len;
714 struct page ** acl_pages;
715 };
716
717 struct nfs_setaclres {
718 struct nfs4_sequence_res seq_res;
719 };
720
721 struct nfs_getaclargs {
722 struct nfs4_sequence_args seq_args;
723 struct nfs_fh * fh;
724 size_t acl_len;
725 struct page ** acl_pages;
726 };
727
728 /* getxattr ACL interface flags */
729 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
730 struct nfs_getaclres {
731 struct nfs4_sequence_res seq_res;
732 size_t acl_len;
733 size_t acl_data_offset;
734 int acl_flags;
735 struct page * acl_scratch;
736 };
737
738 struct nfs_setattrres {
739 struct nfs4_sequence_res seq_res;
740 struct nfs_fattr * fattr;
741 struct nfs4_label *label;
742 const struct nfs_server * server;
743 };
744
745 struct nfs_linkargs {
746 struct nfs_fh * fromfh;
747 struct nfs_fh * tofh;
748 const char * toname;
749 unsigned int tolen;
750 };
751
752 struct nfs_symlinkargs {
753 struct nfs_fh * fromfh;
754 const char * fromname;
755 unsigned int fromlen;
756 struct page ** pages;
757 unsigned int pathlen;
758 struct iattr * sattr;
759 };
760
761 struct nfs_readdirargs {
762 struct nfs_fh * fh;
763 __u32 cookie;
764 unsigned int count;
765 struct page ** pages;
766 };
767
768 struct nfs3_getaclargs {
769 struct nfs_fh * fh;
770 int mask;
771 struct page ** pages;
772 };
773
774 struct nfs3_setaclargs {
775 struct inode * inode;
776 int mask;
777 struct posix_acl * acl_access;
778 struct posix_acl * acl_default;
779 size_t len;
780 unsigned int npages;
781 struct page ** pages;
782 };
783
784 struct nfs_diropok {
785 struct nfs_fh * fh;
786 struct nfs_fattr * fattr;
787 };
788
789 struct nfs_readlinkargs {
790 struct nfs_fh * fh;
791 unsigned int pgbase;
792 unsigned int pglen;
793 struct page ** pages;
794 };
795
796 struct nfs3_sattrargs {
797 struct nfs_fh * fh;
798 struct iattr * sattr;
799 unsigned int guard;
800 struct timespec guardtime;
801 };
802
803 struct nfs3_diropargs {
804 struct nfs_fh * fh;
805 const char * name;
806 unsigned int len;
807 };
808
809 struct nfs3_accessargs {
810 struct nfs_fh * fh;
811 __u32 access;
812 };
813
814 struct nfs3_createargs {
815 struct nfs_fh * fh;
816 const char * name;
817 unsigned int len;
818 struct iattr * sattr;
819 enum nfs3_createmode createmode;
820 __be32 verifier[2];
821 };
822
823 struct nfs3_mkdirargs {
824 struct nfs_fh * fh;
825 const char * name;
826 unsigned int len;
827 struct iattr * sattr;
828 };
829
830 struct nfs3_symlinkargs {
831 struct nfs_fh * fromfh;
832 const char * fromname;
833 unsigned int fromlen;
834 struct page ** pages;
835 unsigned int pathlen;
836 struct iattr * sattr;
837 };
838
839 struct nfs3_mknodargs {
840 struct nfs_fh * fh;
841 const char * name;
842 unsigned int len;
843 enum nfs3_ftype type;
844 struct iattr * sattr;
845 dev_t rdev;
846 };
847
848 struct nfs3_linkargs {
849 struct nfs_fh * fromfh;
850 struct nfs_fh * tofh;
851 const char * toname;
852 unsigned int tolen;
853 };
854
855 struct nfs3_readdirargs {
856 struct nfs_fh * fh;
857 __u64 cookie;
858 __be32 verf[2];
859 int plus;
860 unsigned int count;
861 struct page ** pages;
862 };
863
864 struct nfs3_diropres {
865 struct nfs_fattr * dir_attr;
866 struct nfs_fh * fh;
867 struct nfs_fattr * fattr;
868 };
869
870 struct nfs3_accessres {
871 struct nfs_fattr * fattr;
872 __u32 access;
873 };
874
875 struct nfs3_readlinkargs {
876 struct nfs_fh * fh;
877 unsigned int pgbase;
878 unsigned int pglen;
879 struct page ** pages;
880 };
881
882 struct nfs3_linkres {
883 struct nfs_fattr * dir_attr;
884 struct nfs_fattr * fattr;
885 };
886
887 struct nfs3_readdirres {
888 struct nfs_fattr * dir_attr;
889 __be32 * verf;
890 int plus;
891 };
892
893 struct nfs3_getaclres {
894 struct nfs_fattr * fattr;
895 int mask;
896 unsigned int acl_access_count;
897 unsigned int acl_default_count;
898 struct posix_acl * acl_access;
899 struct posix_acl * acl_default;
900 };
901
902 #if IS_ENABLED(CONFIG_NFS_V4)
903
904 typedef u64 clientid4;
905
906 struct nfs4_accessargs {
907 struct nfs4_sequence_args seq_args;
908 const struct nfs_fh * fh;
909 const u32 * bitmask;
910 u32 access;
911 };
912
913 struct nfs4_accessres {
914 struct nfs4_sequence_res seq_res;
915 const struct nfs_server * server;
916 struct nfs_fattr * fattr;
917 u32 supported;
918 u32 access;
919 };
920
921 struct nfs4_create_arg {
922 struct nfs4_sequence_args seq_args;
923 u32 ftype;
924 union {
925 struct {
926 struct page ** pages;
927 unsigned int len;
928 } symlink; /* NF4LNK */
929 struct {
930 u32 specdata1;
931 u32 specdata2;
932 } device; /* NF4BLK, NF4CHR */
933 } u;
934 const struct qstr * name;
935 const struct nfs_server * server;
936 const struct iattr * attrs;
937 const struct nfs_fh * dir_fh;
938 const u32 * bitmask;
939 const struct nfs4_label *label;
940 };
941
942 struct nfs4_create_res {
943 struct nfs4_sequence_res seq_res;
944 const struct nfs_server * server;
945 struct nfs_fh * fh;
946 struct nfs_fattr * fattr;
947 struct nfs4_label *label;
948 struct nfs4_change_info dir_cinfo;
949 };
950
951 struct nfs4_fsinfo_arg {
952 struct nfs4_sequence_args seq_args;
953 const struct nfs_fh * fh;
954 const u32 * bitmask;
955 };
956
957 struct nfs4_fsinfo_res {
958 struct nfs4_sequence_res seq_res;
959 struct nfs_fsinfo *fsinfo;
960 };
961
962 struct nfs4_getattr_arg {
963 struct nfs4_sequence_args seq_args;
964 const struct nfs_fh * fh;
965 const u32 * bitmask;
966 };
967
968 struct nfs4_getattr_res {
969 struct nfs4_sequence_res seq_res;
970 const struct nfs_server * server;
971 struct nfs_fattr * fattr;
972 struct nfs4_label *label;
973 };
974
975 struct nfs4_link_arg {
976 struct nfs4_sequence_args seq_args;
977 const struct nfs_fh * fh;
978 const struct nfs_fh * dir_fh;
979 const struct qstr * name;
980 const u32 * bitmask;
981 };
982
983 struct nfs4_link_res {
984 struct nfs4_sequence_res seq_res;
985 const struct nfs_server * server;
986 struct nfs_fattr * fattr;
987 struct nfs4_label *label;
988 struct nfs4_change_info cinfo;
989 struct nfs_fattr * dir_attr;
990 };
991
992
993 struct nfs4_lookup_arg {
994 struct nfs4_sequence_args seq_args;
995 const struct nfs_fh * dir_fh;
996 const struct qstr * name;
997 const u32 * bitmask;
998 };
999
1000 struct nfs4_lookup_res {
1001 struct nfs4_sequence_res seq_res;
1002 const struct nfs_server * server;
1003 struct nfs_fattr * fattr;
1004 struct nfs_fh * fh;
1005 struct nfs4_label *label;
1006 };
1007
1008 struct nfs4_lookup_root_arg {
1009 struct nfs4_sequence_args seq_args;
1010 const u32 * bitmask;
1011 };
1012
1013 struct nfs4_pathconf_arg {
1014 struct nfs4_sequence_args seq_args;
1015 const struct nfs_fh * fh;
1016 const u32 * bitmask;
1017 };
1018
1019 struct nfs4_pathconf_res {
1020 struct nfs4_sequence_res seq_res;
1021 struct nfs_pathconf *pathconf;
1022 };
1023
1024 struct nfs4_readdir_arg {
1025 struct nfs4_sequence_args seq_args;
1026 const struct nfs_fh * fh;
1027 u64 cookie;
1028 nfs4_verifier verifier;
1029 u32 count;
1030 struct page ** pages; /* zero-copy data */
1031 unsigned int pgbase; /* zero-copy data */
1032 const u32 * bitmask;
1033 int plus;
1034 };
1035
1036 struct nfs4_readdir_res {
1037 struct nfs4_sequence_res seq_res;
1038 nfs4_verifier verifier;
1039 unsigned int pgbase;
1040 };
1041
1042 struct nfs4_readlink {
1043 struct nfs4_sequence_args seq_args;
1044 const struct nfs_fh * fh;
1045 unsigned int pgbase;
1046 unsigned int pglen; /* zero-copy data */
1047 struct page ** pages; /* zero-copy data */
1048 };
1049
1050 struct nfs4_readlink_res {
1051 struct nfs4_sequence_res seq_res;
1052 };
1053
1054 struct nfs4_setclientid {
1055 const nfs4_verifier * sc_verifier;
1056 u32 sc_prog;
1057 unsigned int sc_netid_len;
1058 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
1059 unsigned int sc_uaddr_len;
1060 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
1061 struct nfs_client *sc_clnt;
1062 struct rpc_cred *sc_cred;
1063 };
1064
1065 struct nfs4_setclientid_res {
1066 u64 clientid;
1067 nfs4_verifier confirm;
1068 };
1069
1070 struct nfs4_statfs_arg {
1071 struct nfs4_sequence_args seq_args;
1072 const struct nfs_fh * fh;
1073 const u32 * bitmask;
1074 };
1075
1076 struct nfs4_statfs_res {
1077 struct nfs4_sequence_res seq_res;
1078 struct nfs_fsstat *fsstat;
1079 };
1080
1081 struct nfs4_server_caps_arg {
1082 struct nfs4_sequence_args seq_args;
1083 struct nfs_fh *fhandle;
1084 const u32 * bitmask;
1085 };
1086
1087 struct nfs4_server_caps_res {
1088 struct nfs4_sequence_res seq_res;
1089 u32 attr_bitmask[3];
1090 u32 exclcreat_bitmask[3];
1091 u32 acl_bitmask;
1092 u32 has_links;
1093 u32 has_symlinks;
1094 u32 fh_expire_type;
1095 };
1096
1097 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1098 struct nfs4_pathname {
1099 unsigned int ncomponents;
1100 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
1101 };
1102
1103 #define NFS4_FS_LOCATION_MAXSERVERS 10
1104 struct nfs4_fs_location {
1105 unsigned int nservers;
1106 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
1107 struct nfs4_pathname rootpath;
1108 };
1109
1110 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1111 struct nfs4_fs_locations {
1112 struct nfs_fattr fattr;
1113 const struct nfs_server *server;
1114 struct nfs4_pathname fs_path;
1115 int nlocations;
1116 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
1117 };
1118
1119 struct nfs4_fs_locations_arg {
1120 struct nfs4_sequence_args seq_args;
1121 const struct nfs_fh *dir_fh;
1122 const struct nfs_fh *fh;
1123 const struct qstr *name;
1124 struct page *page;
1125 const u32 *bitmask;
1126 clientid4 clientid;
1127 unsigned char migration:1, renew:1;
1128 };
1129
1130 struct nfs4_fs_locations_res {
1131 struct nfs4_sequence_res seq_res;
1132 struct nfs4_fs_locations *fs_locations;
1133 unsigned char migration:1, renew:1;
1134 };
1135
1136 struct nfs4_secinfo4 {
1137 u32 flavor;
1138 struct rpcsec_gss_info flavor_info;
1139 };
1140
1141 struct nfs4_secinfo_flavors {
1142 unsigned int num_flavors;
1143 struct nfs4_secinfo4 flavors[0];
1144 };
1145
1146 struct nfs4_secinfo_arg {
1147 struct nfs4_sequence_args seq_args;
1148 const struct nfs_fh *dir_fh;
1149 const struct qstr *name;
1150 };
1151
1152 struct nfs4_secinfo_res {
1153 struct nfs4_sequence_res seq_res;
1154 struct nfs4_secinfo_flavors *flavors;
1155 };
1156
1157 struct nfs4_fsid_present_arg {
1158 struct nfs4_sequence_args seq_args;
1159 const struct nfs_fh *fh;
1160 clientid4 clientid;
1161 unsigned char renew:1;
1162 };
1163
1164 struct nfs4_fsid_present_res {
1165 struct nfs4_sequence_res seq_res;
1166 struct nfs_fh *fh;
1167 unsigned char renew:1;
1168 };
1169
1170 #endif /* CONFIG_NFS_V4 */
1171
1172 struct nfstime4 {
1173 u64 seconds;
1174 u32 nseconds;
1175 };
1176
1177 #ifdef CONFIG_NFS_V4_1
1178
1179 struct pnfs_commit_bucket {
1180 struct list_head written;
1181 struct list_head committing;
1182 struct pnfs_layout_segment *wlseg;
1183 struct pnfs_layout_segment *clseg;
1184 struct nfs_writeverf direct_verf;
1185 };
1186
1187 struct pnfs_ds_commit_info {
1188 int nwritten;
1189 int ncommitting;
1190 int nbuckets;
1191 struct pnfs_commit_bucket *buckets;
1192 };
1193
1194 struct nfs41_state_protection {
1195 u32 how;
1196 struct nfs4_op_map enforce;
1197 struct nfs4_op_map allow;
1198 };
1199
1200 struct nfs41_exchange_id_args {
1201 struct nfs_client *client;
1202 nfs4_verifier *verifier;
1203 u32 flags;
1204 struct nfs41_state_protection state_protect;
1205 };
1206
1207 struct nfs41_server_owner {
1208 uint64_t minor_id;
1209 uint32_t major_id_sz;
1210 char major_id[NFS4_OPAQUE_LIMIT];
1211 };
1212
1213 struct nfs41_server_scope {
1214 uint32_t server_scope_sz;
1215 char server_scope[NFS4_OPAQUE_LIMIT];
1216 };
1217
1218 struct nfs41_impl_id {
1219 char domain[NFS4_OPAQUE_LIMIT + 1];
1220 char name[NFS4_OPAQUE_LIMIT + 1];
1221 struct nfstime4 date;
1222 };
1223
1224 struct nfs41_bind_conn_to_session_args {
1225 struct nfs_client *client;
1226 struct nfs4_sessionid sessionid;
1227 u32 dir;
1228 bool use_conn_in_rdma_mode;
1229 };
1230
1231 struct nfs41_bind_conn_to_session_res {
1232 struct nfs4_sessionid sessionid;
1233 u32 dir;
1234 bool use_conn_in_rdma_mode;
1235 };
1236
1237 struct nfs41_exchange_id_res {
1238 u64 clientid;
1239 u32 seqid;
1240 u32 flags;
1241 struct nfs41_server_owner *server_owner;
1242 struct nfs41_server_scope *server_scope;
1243 struct nfs41_impl_id *impl_id;
1244 struct nfs41_state_protection state_protect;
1245 };
1246
1247 struct nfs41_create_session_args {
1248 struct nfs_client *client;
1249 u64 clientid;
1250 uint32_t seqid;
1251 uint32_t flags;
1252 uint32_t cb_program;
1253 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1254 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1255 };
1256
1257 struct nfs41_create_session_res {
1258 struct nfs4_sessionid sessionid;
1259 uint32_t seqid;
1260 uint32_t flags;
1261 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1262 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1263 };
1264
1265 struct nfs41_reclaim_complete_args {
1266 struct nfs4_sequence_args seq_args;
1267 /* In the future extend to include curr_fh for use with migration */
1268 unsigned char one_fs:1;
1269 };
1270
1271 struct nfs41_reclaim_complete_res {
1272 struct nfs4_sequence_res seq_res;
1273 };
1274
1275 #define SECINFO_STYLE_CURRENT_FH 0
1276 #define SECINFO_STYLE_PARENT 1
1277 struct nfs41_secinfo_no_name_args {
1278 struct nfs4_sequence_args seq_args;
1279 int style;
1280 };
1281
1282 struct nfs41_test_stateid_args {
1283 struct nfs4_sequence_args seq_args;
1284 nfs4_stateid *stateid;
1285 };
1286
1287 struct nfs41_test_stateid_res {
1288 struct nfs4_sequence_res seq_res;
1289 unsigned int status;
1290 };
1291
1292 struct nfs41_free_stateid_args {
1293 struct nfs4_sequence_args seq_args;
1294 nfs4_stateid stateid;
1295 };
1296
1297 struct nfs41_free_stateid_res {
1298 struct nfs4_sequence_res seq_res;
1299 unsigned int status;
1300 };
1301
1302 static inline void
1303 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
1304 {
1305 kfree(cinfo->buckets);
1306 }
1307
1308 #else
1309
1310 struct pnfs_ds_commit_info {
1311 };
1312
1313 static inline void
1314 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
1315 {
1316 }
1317
1318 #endif /* CONFIG_NFS_V4_1 */
1319
1320 #ifdef CONFIG_NFS_V4_2
1321 struct nfs42_falloc_args {
1322 struct nfs4_sequence_args seq_args;
1323
1324 struct nfs_fh *falloc_fh;
1325 nfs4_stateid falloc_stateid;
1326 u64 falloc_offset;
1327 u64 falloc_length;
1328 const u32 *falloc_bitmask;
1329 };
1330
1331 struct nfs42_falloc_res {
1332 struct nfs4_sequence_res seq_res;
1333 unsigned int status;
1334
1335 struct nfs_fattr *falloc_fattr;
1336 const struct nfs_server *falloc_server;
1337 };
1338
1339 struct nfs42_copy_args {
1340 struct nfs4_sequence_args seq_args;
1341
1342 struct nfs_fh *src_fh;
1343 nfs4_stateid src_stateid;
1344 u64 src_pos;
1345
1346 struct nfs_fh *dst_fh;
1347 nfs4_stateid dst_stateid;
1348 u64 dst_pos;
1349
1350 u64 count;
1351 };
1352
1353 struct nfs42_write_res {
1354 u64 count;
1355 struct nfs_writeverf verifier;
1356 };
1357
1358 struct nfs42_copy_res {
1359 struct nfs4_sequence_res seq_res;
1360 struct nfs42_write_res write_res;
1361 bool consecutive;
1362 bool synchronous;
1363 };
1364
1365 struct nfs42_seek_args {
1366 struct nfs4_sequence_args seq_args;
1367
1368 struct nfs_fh *sa_fh;
1369 nfs4_stateid sa_stateid;
1370 u64 sa_offset;
1371 u32 sa_what;
1372 };
1373
1374 struct nfs42_seek_res {
1375 struct nfs4_sequence_res seq_res;
1376 unsigned int status;
1377
1378 u32 sr_eof;
1379 u64 sr_offset;
1380 };
1381 #endif
1382
1383 struct nfs_page;
1384
1385 #define NFS_PAGEVEC_SIZE (8U)
1386
1387 struct nfs_page_array {
1388 struct page **pagevec;
1389 unsigned int npages; /* Max length of pagevec */
1390 struct page *page_array[NFS_PAGEVEC_SIZE];
1391 };
1392
1393 /* used as flag bits in nfs_pgio_header */
1394 enum {
1395 NFS_IOHDR_ERROR = 0,
1396 NFS_IOHDR_EOF,
1397 NFS_IOHDR_REDO,
1398 NFS_IOHDR_STAT,
1399 };
1400
1401 struct nfs_pgio_header {
1402 struct inode *inode;
1403 struct rpc_cred *cred;
1404 struct list_head pages;
1405 struct nfs_page *req;
1406 struct nfs_writeverf verf; /* Used for writes */
1407 struct pnfs_layout_segment *lseg;
1408 loff_t io_start;
1409 const struct rpc_call_ops *mds_ops;
1410 void (*release) (struct nfs_pgio_header *hdr);
1411 const struct nfs_pgio_completion_ops *completion_ops;
1412 const struct nfs_rw_ops *rw_ops;
1413 struct nfs_direct_req *dreq;
1414 void *layout_private;
1415 spinlock_t lock;
1416 /* fields protected by lock */
1417 int pnfs_error;
1418 int error; /* merge with pnfs_error */
1419 unsigned long good_bytes; /* boundary of good data */
1420 unsigned long flags;
1421
1422 /*
1423 * rpc data
1424 */
1425 struct rpc_task task;
1426 struct nfs_fattr fattr;
1427 struct nfs_pgio_args args; /* argument struct */
1428 struct nfs_pgio_res res; /* result struct */
1429 unsigned long timestamp; /* For lease renewal */
1430 int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *);
1431 __u64 mds_offset; /* Filelayout dense stripe */
1432 struct nfs_page_array page_array;
1433 struct nfs_client *ds_clp; /* pNFS data server */
1434 int ds_commit_idx; /* ds index if ds_clp is set */
1435 int pgio_mirror_idx;/* mirror index in pgio layer */
1436 };
1437
1438 struct nfs_mds_commit_info {
1439 atomic_t rpcs_out;
1440 unsigned long ncommit;
1441 struct list_head list;
1442 };
1443
1444 struct nfs_commit_info;
1445 struct nfs_commit_data;
1446 struct nfs_inode;
1447 struct nfs_commit_completion_ops {
1448 void (*completion) (struct nfs_commit_data *data);
1449 void (*resched_write) (struct nfs_commit_info *, struct nfs_page *);
1450 };
1451
1452 struct nfs_commit_info {
1453 struct inode *inode; /* Needed for inode->i_lock */
1454 struct nfs_mds_commit_info *mds;
1455 struct pnfs_ds_commit_info *ds;
1456 struct nfs_direct_req *dreq; /* O_DIRECT request */
1457 const struct nfs_commit_completion_ops *completion_ops;
1458 };
1459
1460 struct nfs_commit_data {
1461 struct rpc_task task;
1462 struct inode *inode;
1463 struct rpc_cred *cred;
1464 struct nfs_fattr fattr;
1465 struct nfs_writeverf verf;
1466 struct list_head pages; /* Coalesced requests we wish to flush */
1467 struct list_head list; /* lists of struct nfs_write_data */
1468 struct nfs_direct_req *dreq; /* O_DIRECT request */
1469 struct nfs_commitargs args; /* argument struct */
1470 struct nfs_commitres res; /* result struct */
1471 struct nfs_open_context *context;
1472 struct pnfs_layout_segment *lseg;
1473 struct nfs_client *ds_clp; /* pNFS data server */
1474 int ds_commit_index;
1475 loff_t lwb;
1476 const struct rpc_call_ops *mds_ops;
1477 const struct nfs_commit_completion_ops *completion_ops;
1478 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
1479 unsigned long flags;
1480 };
1481
1482 struct nfs_pgio_completion_ops {
1483 void (*error_cleanup)(struct list_head *head);
1484 void (*init_hdr)(struct nfs_pgio_header *hdr);
1485 void (*completion)(struct nfs_pgio_header *hdr);
1486 void (*reschedule_io)(struct nfs_pgio_header *hdr);
1487 };
1488
1489 struct nfs_unlinkdata {
1490 struct nfs_removeargs args;
1491 struct nfs_removeres res;
1492 struct dentry *dentry;
1493 wait_queue_head_t wq;
1494 struct rpc_cred *cred;
1495 struct nfs_fattr dir_attr;
1496 long timeout;
1497 };
1498
1499 struct nfs_renamedata {
1500 struct nfs_renameargs args;
1501 struct nfs_renameres res;
1502 struct rpc_cred *cred;
1503 struct inode *old_dir;
1504 struct dentry *old_dentry;
1505 struct nfs_fattr old_fattr;
1506 struct inode *new_dir;
1507 struct dentry *new_dentry;
1508 struct nfs_fattr new_fattr;
1509 void (*complete)(struct rpc_task *, struct nfs_renamedata *);
1510 long timeout;
1511 };
1512
1513 struct nfs_access_entry;
1514 struct nfs_client;
1515 struct rpc_timeout;
1516 struct nfs_subversion;
1517 struct nfs_mount_info;
1518 struct nfs_client_initdata;
1519 struct nfs_pageio_descriptor;
1520
1521 /*
1522 * RPC procedure vector for NFSv2/NFSv3 demuxing
1523 */
1524 struct nfs_rpc_ops {
1525 u32 version; /* Protocol version */
1526 const struct dentry_operations *dentry_ops;
1527 const struct inode_operations *dir_inode_ops;
1528 const struct inode_operations *file_inode_ops;
1529 const struct file_operations *file_ops;
1530
1531 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1532 struct nfs_fsinfo *);
1533 struct vfsmount *(*submount) (struct nfs_server *, struct dentry *,
1534 struct nfs_fh *, struct nfs_fattr *);
1535 struct dentry *(*try_mount) (int, const char *, struct nfs_mount_info *,
1536 struct nfs_subversion *);
1537 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1538 struct nfs_fattr *, struct nfs4_label *);
1539 int (*setattr) (struct dentry *, struct nfs_fattr *,
1540 struct iattr *);
1541 int (*lookup) (struct inode *, const struct qstr *,
1542 struct nfs_fh *, struct nfs_fattr *,
1543 struct nfs4_label *);
1544 int (*access) (struct inode *, struct nfs_access_entry *);
1545 int (*readlink)(struct inode *, struct page *, unsigned int,
1546 unsigned int);
1547 int (*create) (struct inode *, struct dentry *,
1548 struct iattr *, int);
1549 int (*remove) (struct inode *, const struct qstr *);
1550 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1551 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
1552 int (*unlink_done) (struct rpc_task *, struct inode *);
1553 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1554 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
1555 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1556 int (*link) (struct inode *, struct inode *, const struct qstr *);
1557 int (*symlink) (struct inode *, struct dentry *, struct page *,
1558 unsigned int, struct iattr *);
1559 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1560 int (*rmdir) (struct inode *, const struct qstr *);
1561 int (*readdir) (struct dentry *, struct rpc_cred *,
1562 u64, struct page **, unsigned int, int);
1563 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1564 dev_t);
1565 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1566 struct nfs_fsstat *);
1567 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1568 struct nfs_fsinfo *);
1569 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1570 struct nfs_pathconf *);
1571 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1572 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1573 int (*pgio_rpc_prepare)(struct rpc_task *,
1574 struct nfs_pgio_header *);
1575 void (*read_setup)(struct nfs_pgio_header *, struct rpc_message *);
1576 int (*read_done)(struct rpc_task *, struct nfs_pgio_header *);
1577 void (*write_setup)(struct nfs_pgio_header *, struct rpc_message *);
1578 int (*write_done)(struct rpc_task *, struct nfs_pgio_header *);
1579 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *);
1580 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
1581 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *);
1582 int (*lock)(struct file *, int, struct file_lock *);
1583 int (*lock_check_bounds)(const struct file_lock *);
1584 void (*clear_acl_cache)(struct inode *);
1585 void (*close_context)(struct nfs_open_context *ctx, int);
1586 struct inode * (*open_context) (struct inode *dir,
1587 struct nfs_open_context *ctx,
1588 int open_flags,
1589 struct iattr *iattr,
1590 int *);
1591 int (*have_delegation)(struct inode *, fmode_t);
1592 int (*return_delegation)(struct inode *);
1593 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *);
1594 struct nfs_client *(*init_client) (struct nfs_client *,
1595 const struct nfs_client_initdata *);
1596 void (*free_client) (struct nfs_client *);
1597 struct nfs_server *(*create_server)(struct nfs_mount_info *, struct nfs_subversion *);
1598 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *,
1599 struct nfs_fattr *, rpc_authflavor_t);
1600 };
1601
1602 /*
1603 * NFS_CALL(getattr, inode, (fattr));
1604 * into
1605 * NFS_PROTO(inode)->getattr(fattr);
1606 */
1607 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1608
1609 /*
1610 * Function vectors etc. for the NFS client
1611 */
1612 extern const struct nfs_rpc_ops nfs_v2_clientops;
1613 extern const struct nfs_rpc_ops nfs_v3_clientops;
1614 extern const struct nfs_rpc_ops nfs_v4_clientops;
1615 extern const struct rpc_version nfs_version2;
1616 extern const struct rpc_version nfs_version3;
1617 extern const struct rpc_version nfs_version4;
1618
1619 extern const struct rpc_version nfsacl_version3;
1620 extern const struct rpc_program nfsacl_program;
1621
1622 #endif
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