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NFS: Create a have_delegation rpc_op
[GitHub/mt8127/android_kernel_alcatel_ttab.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 /* 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 */
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 nfs4_threshold {
39 __u32 bm;
40 __u32 l_type;
41 __u64 rd_sz;
42 __u64 wr_sz;
43 __u64 rd_io_sz;
44 __u64 wr_io_sz;
45 };
46
47 struct nfs_fattr {
48 unsigned int valid; /* which fields are valid */
49 umode_t mode;
50 __u32 nlink;
51 __u32 uid;
52 __u32 gid;
53 dev_t rdev;
54 __u64 size;
55 union {
56 struct {
57 __u32 blocksize;
58 __u32 blocks;
59 } nfs2;
60 struct {
61 __u64 used;
62 } nfs3;
63 } du;
64 struct nfs_fsid fsid;
65 __u64 fileid;
66 __u64 mounted_on_fileid;
67 struct timespec atime;
68 struct timespec mtime;
69 struct timespec ctime;
70 __u64 change_attr; /* NFSv4 change attribute */
71 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */
72 __u64 pre_size; /* pre_op_attr.size */
73 struct timespec pre_mtime; /* pre_op_attr.mtime */
74 struct timespec pre_ctime; /* pre_op_attr.ctime */
75 unsigned long time_start;
76 unsigned long gencount;
77 struct nfs4_string *owner_name;
78 struct nfs4_string *group_name;
79 struct nfs4_threshold *mdsthreshold; /* pNFS threshold hints */
80 };
81
82 #define NFS_ATTR_FATTR_TYPE (1U << 0)
83 #define NFS_ATTR_FATTR_MODE (1U << 1)
84 #define NFS_ATTR_FATTR_NLINK (1U << 2)
85 #define NFS_ATTR_FATTR_OWNER (1U << 3)
86 #define NFS_ATTR_FATTR_GROUP (1U << 4)
87 #define NFS_ATTR_FATTR_RDEV (1U << 5)
88 #define NFS_ATTR_FATTR_SIZE (1U << 6)
89 #define NFS_ATTR_FATTR_PRESIZE (1U << 7)
90 #define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8)
91 #define NFS_ATTR_FATTR_SPACE_USED (1U << 9)
92 #define NFS_ATTR_FATTR_FSID (1U << 10)
93 #define NFS_ATTR_FATTR_FILEID (1U << 11)
94 #define NFS_ATTR_FATTR_ATIME (1U << 12)
95 #define NFS_ATTR_FATTR_MTIME (1U << 13)
96 #define NFS_ATTR_FATTR_CTIME (1U << 14)
97 #define NFS_ATTR_FATTR_PREMTIME (1U << 15)
98 #define NFS_ATTR_FATTR_PRECTIME (1U << 16)
99 #define NFS_ATTR_FATTR_CHANGE (1U << 17)
100 #define NFS_ATTR_FATTR_PRECHANGE (1U << 18)
101 #define NFS_ATTR_FATTR_V4_LOCATIONS (1U << 19)
102 #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 20)
103 #define NFS_ATTR_FATTR_MOUNTPOINT (1U << 21)
104 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22)
105 #define NFS_ATTR_FATTR_OWNER_NAME (1U << 23)
106 #define NFS_ATTR_FATTR_GROUP_NAME (1U << 24)
107
108 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
109 | NFS_ATTR_FATTR_MODE \
110 | NFS_ATTR_FATTR_NLINK \
111 | NFS_ATTR_FATTR_OWNER \
112 | NFS_ATTR_FATTR_GROUP \
113 | NFS_ATTR_FATTR_RDEV \
114 | NFS_ATTR_FATTR_SIZE \
115 | NFS_ATTR_FATTR_FSID \
116 | NFS_ATTR_FATTR_FILEID \
117 | NFS_ATTR_FATTR_ATIME \
118 | NFS_ATTR_FATTR_MTIME \
119 | NFS_ATTR_FATTR_CTIME \
120 | NFS_ATTR_FATTR_CHANGE)
121 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
122 | NFS_ATTR_FATTR_BLOCKS_USED)
123 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
124 | NFS_ATTR_FATTR_SPACE_USED)
125 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
126 | NFS_ATTR_FATTR_SPACE_USED)
127
128 /*
129 * Info on the file system
130 */
131 struct nfs_fsinfo {
132 struct nfs_fattr *fattr; /* Post-op attributes */
133 __u32 rtmax; /* max. read transfer size */
134 __u32 rtpref; /* pref. read transfer size */
135 __u32 rtmult; /* reads should be multiple of this */
136 __u32 wtmax; /* max. write transfer size */
137 __u32 wtpref; /* pref. write transfer size */
138 __u32 wtmult; /* writes should be multiple of this */
139 __u32 dtpref; /* pref. readdir transfer size */
140 __u64 maxfilesize;
141 struct timespec time_delta; /* server time granularity */
142 __u32 lease_time; /* in seconds */
143 __u32 layouttype; /* supported pnfs layout driver */
144 __u32 blksize; /* preferred pnfs io block size */
145 };
146
147 struct nfs_fsstat {
148 struct nfs_fattr *fattr; /* Post-op attributes */
149 __u64 tbytes; /* total size in bytes */
150 __u64 fbytes; /* # of free bytes */
151 __u64 abytes; /* # of bytes available to user */
152 __u64 tfiles; /* # of files */
153 __u64 ffiles; /* # of free files */
154 __u64 afiles; /* # of files available to user */
155 };
156
157 struct nfs2_fsstat {
158 __u32 tsize; /* Server transfer size */
159 __u32 bsize; /* Filesystem block size */
160 __u32 blocks; /* No. of "bsize" blocks on filesystem */
161 __u32 bfree; /* No. of free "bsize" blocks */
162 __u32 bavail; /* No. of available "bsize" blocks */
163 };
164
165 struct nfs_pathconf {
166 struct nfs_fattr *fattr; /* Post-op attributes */
167 __u32 max_link; /* max # of hard links */
168 __u32 max_namelen; /* max name length */
169 };
170
171 struct nfs4_change_info {
172 u32 atomic;
173 u64 before;
174 u64 after;
175 };
176
177 struct nfs_seqid;
178
179 /* nfs41 sessions channel attributes */
180 struct nfs4_channel_attrs {
181 u32 max_rqst_sz;
182 u32 max_resp_sz;
183 u32 max_resp_sz_cached;
184 u32 max_ops;
185 u32 max_reqs;
186 };
187
188 /* nfs41 sessions slot seqid */
189 struct nfs4_slot {
190 u32 seq_nr;
191 };
192
193 struct nfs4_sequence_args {
194 struct nfs4_session *sa_session;
195 u32 sa_slotid;
196 u8 sa_cache_this;
197 };
198
199 struct nfs4_sequence_res {
200 struct nfs4_session *sr_session;
201 struct nfs4_slot *sr_slot; /* slot used to send request */
202 int sr_status; /* sequence operation status */
203 unsigned long sr_renewal_time;
204 u32 sr_status_flags;
205 };
206
207 struct nfs4_get_lease_time_args {
208 struct nfs4_sequence_args la_seq_args;
209 };
210
211 struct nfs4_get_lease_time_res {
212 struct nfs_fsinfo *lr_fsinfo;
213 struct nfs4_sequence_res lr_seq_res;
214 };
215
216 #define PNFS_LAYOUT_MAXSIZE 4096
217
218 struct nfs4_layoutdriver_data {
219 struct page **pages;
220 __u32 pglen;
221 __u32 len;
222 };
223
224 struct pnfs_layout_range {
225 u32 iomode;
226 u64 offset;
227 u64 length;
228 };
229
230 struct nfs4_layoutget_args {
231 __u32 type;
232 struct pnfs_layout_range range;
233 __u64 minlength;
234 __u32 maxcount;
235 struct inode *inode;
236 struct nfs_open_context *ctx;
237 struct nfs4_sequence_args seq_args;
238 nfs4_stateid stateid;
239 struct nfs4_layoutdriver_data layout;
240 };
241
242 struct nfs4_layoutget_res {
243 __u32 return_on_close;
244 struct pnfs_layout_range range;
245 __u32 type;
246 nfs4_stateid stateid;
247 struct nfs4_sequence_res seq_res;
248 struct nfs4_layoutdriver_data *layoutp;
249 };
250
251 struct nfs4_layoutget {
252 struct nfs4_layoutget_args args;
253 struct nfs4_layoutget_res res;
254 struct pnfs_layout_segment **lsegpp;
255 gfp_t gfp_flags;
256 };
257
258 struct nfs4_getdevicelist_args {
259 const struct nfs_fh *fh;
260 u32 layoutclass;
261 struct nfs4_sequence_args seq_args;
262 };
263
264 struct nfs4_getdevicelist_res {
265 struct pnfs_devicelist *devlist;
266 struct nfs4_sequence_res seq_res;
267 };
268
269 struct nfs4_getdeviceinfo_args {
270 struct pnfs_device *pdev;
271 struct nfs4_sequence_args seq_args;
272 };
273
274 struct nfs4_getdeviceinfo_res {
275 struct pnfs_device *pdev;
276 struct nfs4_sequence_res seq_res;
277 };
278
279 struct nfs4_layoutcommit_args {
280 nfs4_stateid stateid;
281 __u64 lastbytewritten;
282 struct inode *inode;
283 const u32 *bitmask;
284 struct nfs4_sequence_args seq_args;
285 };
286
287 struct nfs4_layoutcommit_res {
288 struct nfs_fattr *fattr;
289 const struct nfs_server *server;
290 struct nfs4_sequence_res seq_res;
291 int status;
292 };
293
294 struct nfs4_layoutcommit_data {
295 struct rpc_task task;
296 struct nfs_fattr fattr;
297 struct list_head lseg_list;
298 struct rpc_cred *cred;
299 struct nfs4_layoutcommit_args args;
300 struct nfs4_layoutcommit_res res;
301 };
302
303 struct nfs4_layoutreturn_args {
304 struct pnfs_layout_hdr *layout;
305 struct inode *inode;
306 nfs4_stateid stateid;
307 __u32 layout_type;
308 struct nfs4_sequence_args seq_args;
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 int rpc_status;
323 };
324
325 struct stateowner_id {
326 __u64 create_time;
327 __u32 uniquifier;
328 };
329
330 /*
331 * Arguments to the open call.
332 */
333 struct nfs_openargs {
334 const struct nfs_fh * fh;
335 struct nfs_seqid * seqid;
336 int open_flags;
337 fmode_t fmode;
338 __u64 clientid;
339 struct stateowner_id id;
340 union {
341 struct {
342 struct iattr * attrs; /* UNCHECKED, GUARDED */
343 nfs4_verifier verifier; /* EXCLUSIVE */
344 };
345 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
346 fmode_t delegation_type; /* CLAIM_PREVIOUS */
347 } u;
348 const struct qstr * name;
349 const struct nfs_server *server; /* Needed for ID mapping */
350 const u32 * bitmask;
351 const u32 * open_bitmap;
352 __u32 claim;
353 struct nfs4_sequence_args seq_args;
354 };
355
356 struct nfs_openres {
357 nfs4_stateid stateid;
358 struct nfs_fh fh;
359 struct nfs4_change_info cinfo;
360 __u32 rflags;
361 struct nfs_fattr * f_attr;
362 struct nfs_seqid * seqid;
363 const struct nfs_server *server;
364 fmode_t delegation_type;
365 nfs4_stateid delegation;
366 __u32 do_recall;
367 __u64 maxsize;
368 __u32 attrset[NFS4_BITMAP_SIZE];
369 struct nfs4_string *owner;
370 struct nfs4_string *group_owner;
371 struct nfs4_sequence_res seq_res;
372 };
373
374 /*
375 * Arguments to the open_confirm call.
376 */
377 struct nfs_open_confirmargs {
378 const struct nfs_fh * fh;
379 nfs4_stateid * stateid;
380 struct nfs_seqid * seqid;
381 };
382
383 struct nfs_open_confirmres {
384 nfs4_stateid stateid;
385 struct nfs_seqid * seqid;
386 };
387
388 /*
389 * Arguments to the close call.
390 */
391 struct nfs_closeargs {
392 struct nfs_fh * fh;
393 nfs4_stateid * stateid;
394 struct nfs_seqid * seqid;
395 fmode_t fmode;
396 const u32 * bitmask;
397 struct nfs4_sequence_args seq_args;
398 };
399
400 struct nfs_closeres {
401 nfs4_stateid stateid;
402 struct nfs_fattr * fattr;
403 struct nfs_seqid * seqid;
404 const struct nfs_server *server;
405 struct nfs4_sequence_res seq_res;
406 };
407 /*
408 * * Arguments to the lock,lockt, and locku call.
409 * */
410 struct nfs_lowner {
411 __u64 clientid;
412 __u64 id;
413 dev_t s_dev;
414 };
415
416 struct nfs_lock_args {
417 struct nfs_fh * fh;
418 struct file_lock * fl;
419 struct nfs_seqid * lock_seqid;
420 nfs4_stateid * lock_stateid;
421 struct nfs_seqid * open_seqid;
422 nfs4_stateid * open_stateid;
423 struct nfs_lowner lock_owner;
424 unsigned char block : 1;
425 unsigned char reclaim : 1;
426 unsigned char new_lock_owner : 1;
427 struct nfs4_sequence_args seq_args;
428 };
429
430 struct nfs_lock_res {
431 nfs4_stateid stateid;
432 struct nfs_seqid * lock_seqid;
433 struct nfs_seqid * open_seqid;
434 struct nfs4_sequence_res seq_res;
435 };
436
437 struct nfs_locku_args {
438 struct nfs_fh * fh;
439 struct file_lock * fl;
440 struct nfs_seqid * seqid;
441 nfs4_stateid * stateid;
442 struct nfs4_sequence_args seq_args;
443 };
444
445 struct nfs_locku_res {
446 nfs4_stateid stateid;
447 struct nfs_seqid * seqid;
448 struct nfs4_sequence_res seq_res;
449 };
450
451 struct nfs_lockt_args {
452 struct nfs_fh * fh;
453 struct file_lock * fl;
454 struct nfs_lowner lock_owner;
455 struct nfs4_sequence_args seq_args;
456 };
457
458 struct nfs_lockt_res {
459 struct file_lock * denied; /* LOCK, LOCKT failed */
460 struct nfs4_sequence_res seq_res;
461 };
462
463 struct nfs_release_lockowner_args {
464 struct nfs_lowner lock_owner;
465 };
466
467 struct nfs4_delegreturnargs {
468 const struct nfs_fh *fhandle;
469 const nfs4_stateid *stateid;
470 const u32 * bitmask;
471 struct nfs4_sequence_args seq_args;
472 };
473
474 struct nfs4_delegreturnres {
475 struct nfs_fattr * fattr;
476 const struct nfs_server *server;
477 struct nfs4_sequence_res seq_res;
478 };
479
480 /*
481 * Arguments to the read call.
482 */
483 struct nfs_readargs {
484 struct nfs_fh * fh;
485 struct nfs_open_context *context;
486 struct nfs_lock_context *lock_context;
487 __u64 offset;
488 __u32 count;
489 unsigned int pgbase;
490 struct page ** pages;
491 struct nfs4_sequence_args seq_args;
492 };
493
494 struct nfs_readres {
495 struct nfs_fattr * fattr;
496 __u32 count;
497 int eof;
498 struct nfs4_sequence_res seq_res;
499 };
500
501 /*
502 * Arguments to the write call.
503 */
504 struct nfs_writeargs {
505 struct nfs_fh * fh;
506 struct nfs_open_context *context;
507 struct nfs_lock_context *lock_context;
508 __u64 offset;
509 __u32 count;
510 enum nfs3_stable_how stable;
511 unsigned int pgbase;
512 struct page ** pages;
513 const u32 * bitmask;
514 struct nfs4_sequence_args seq_args;
515 };
516
517 struct nfs_write_verifier {
518 char data[8];
519 };
520
521 struct nfs_writeverf {
522 struct nfs_write_verifier verifier;
523 enum nfs3_stable_how committed;
524 };
525
526 struct nfs_writeres {
527 struct nfs_fattr * fattr;
528 struct nfs_writeverf * verf;
529 __u32 count;
530 const struct nfs_server *server;
531 struct nfs4_sequence_res seq_res;
532 };
533
534 /*
535 * Arguments to the commit call.
536 */
537 struct nfs_commitargs {
538 struct nfs_fh *fh;
539 __u64 offset;
540 __u32 count;
541 const u32 *bitmask;
542 struct nfs4_sequence_args seq_args;
543 };
544
545 struct nfs_commitres {
546 struct nfs_fattr *fattr;
547 struct nfs_writeverf *verf;
548 const struct nfs_server *server;
549 struct nfs4_sequence_res seq_res;
550 };
551
552 /*
553 * Common arguments to the unlink call
554 */
555 struct nfs_removeargs {
556 const struct nfs_fh *fh;
557 struct qstr name;
558 struct nfs4_sequence_args seq_args;
559 };
560
561 struct nfs_removeres {
562 const struct nfs_server *server;
563 struct nfs_fattr *dir_attr;
564 struct nfs4_change_info cinfo;
565 struct nfs4_sequence_res seq_res;
566 };
567
568 /*
569 * Common arguments to the rename call
570 */
571 struct nfs_renameargs {
572 const struct nfs_fh *old_dir;
573 const struct nfs_fh *new_dir;
574 const struct qstr *old_name;
575 const struct qstr *new_name;
576 struct nfs4_sequence_args seq_args;
577 };
578
579 struct nfs_renameres {
580 const struct nfs_server *server;
581 struct nfs4_change_info old_cinfo;
582 struct nfs_fattr *old_fattr;
583 struct nfs4_change_info new_cinfo;
584 struct nfs_fattr *new_fattr;
585 struct nfs4_sequence_res seq_res;
586 };
587
588 /*
589 * Argument struct for decode_entry function
590 */
591 struct nfs_entry {
592 __u64 ino;
593 __u64 cookie,
594 prev_cookie;
595 const char * name;
596 unsigned int len;
597 int eof;
598 struct nfs_fh * fh;
599 struct nfs_fattr * fattr;
600 unsigned char d_type;
601 struct nfs_server * server;
602 };
603
604 /*
605 * The following types are for NFSv2 only.
606 */
607 struct nfs_sattrargs {
608 struct nfs_fh * fh;
609 struct iattr * sattr;
610 };
611
612 struct nfs_diropargs {
613 struct nfs_fh * fh;
614 const char * name;
615 unsigned int len;
616 };
617
618 struct nfs_createargs {
619 struct nfs_fh * fh;
620 const char * name;
621 unsigned int len;
622 struct iattr * sattr;
623 };
624
625 struct nfs_setattrargs {
626 struct nfs_fh * fh;
627 nfs4_stateid stateid;
628 struct iattr * iap;
629 const struct nfs_server * server; /* Needed for name mapping */
630 const u32 * bitmask;
631 struct nfs4_sequence_args seq_args;
632 };
633
634 struct nfs_setaclargs {
635 struct nfs_fh * fh;
636 size_t acl_len;
637 unsigned int acl_pgbase;
638 struct page ** acl_pages;
639 struct nfs4_sequence_args seq_args;
640 };
641
642 struct nfs_setaclres {
643 struct nfs4_sequence_res seq_res;
644 };
645
646 struct nfs_getaclargs {
647 struct nfs_fh * fh;
648 size_t acl_len;
649 unsigned int acl_pgbase;
650 struct page ** acl_pages;
651 struct nfs4_sequence_args seq_args;
652 };
653
654 /* getxattr ACL interface flags */
655 #define NFS4_ACL_LEN_REQUEST 0x0001 /* zero length getxattr buffer */
656 struct nfs_getaclres {
657 size_t acl_len;
658 size_t acl_data_offset;
659 int acl_flags;
660 struct page * acl_scratch;
661 struct nfs4_sequence_res seq_res;
662 };
663
664 struct nfs_setattrres {
665 struct nfs_fattr * fattr;
666 const struct nfs_server * server;
667 struct nfs4_sequence_res seq_res;
668 };
669
670 struct nfs_linkargs {
671 struct nfs_fh * fromfh;
672 struct nfs_fh * tofh;
673 const char * toname;
674 unsigned int tolen;
675 };
676
677 struct nfs_symlinkargs {
678 struct nfs_fh * fromfh;
679 const char * fromname;
680 unsigned int fromlen;
681 struct page ** pages;
682 unsigned int pathlen;
683 struct iattr * sattr;
684 };
685
686 struct nfs_readdirargs {
687 struct nfs_fh * fh;
688 __u32 cookie;
689 unsigned int count;
690 struct page ** pages;
691 };
692
693 struct nfs3_getaclargs {
694 struct nfs_fh * fh;
695 int mask;
696 struct page ** pages;
697 };
698
699 struct nfs3_setaclargs {
700 struct inode * inode;
701 int mask;
702 struct posix_acl * acl_access;
703 struct posix_acl * acl_default;
704 size_t len;
705 unsigned int npages;
706 struct page ** pages;
707 };
708
709 struct nfs_diropok {
710 struct nfs_fh * fh;
711 struct nfs_fattr * fattr;
712 };
713
714 struct nfs_readlinkargs {
715 struct nfs_fh * fh;
716 unsigned int pgbase;
717 unsigned int pglen;
718 struct page ** pages;
719 };
720
721 struct nfs3_sattrargs {
722 struct nfs_fh * fh;
723 struct iattr * sattr;
724 unsigned int guard;
725 struct timespec guardtime;
726 };
727
728 struct nfs3_diropargs {
729 struct nfs_fh * fh;
730 const char * name;
731 unsigned int len;
732 };
733
734 struct nfs3_accessargs {
735 struct nfs_fh * fh;
736 __u32 access;
737 };
738
739 struct nfs3_createargs {
740 struct nfs_fh * fh;
741 const char * name;
742 unsigned int len;
743 struct iattr * sattr;
744 enum nfs3_createmode createmode;
745 __be32 verifier[2];
746 };
747
748 struct nfs3_mkdirargs {
749 struct nfs_fh * fh;
750 const char * name;
751 unsigned int len;
752 struct iattr * sattr;
753 };
754
755 struct nfs3_symlinkargs {
756 struct nfs_fh * fromfh;
757 const char * fromname;
758 unsigned int fromlen;
759 struct page ** pages;
760 unsigned int pathlen;
761 struct iattr * sattr;
762 };
763
764 struct nfs3_mknodargs {
765 struct nfs_fh * fh;
766 const char * name;
767 unsigned int len;
768 enum nfs3_ftype type;
769 struct iattr * sattr;
770 dev_t rdev;
771 };
772
773 struct nfs3_linkargs {
774 struct nfs_fh * fromfh;
775 struct nfs_fh * tofh;
776 const char * toname;
777 unsigned int tolen;
778 };
779
780 struct nfs3_readdirargs {
781 struct nfs_fh * fh;
782 __u64 cookie;
783 __be32 verf[2];
784 int plus;
785 unsigned int count;
786 struct page ** pages;
787 };
788
789 struct nfs3_diropres {
790 struct nfs_fattr * dir_attr;
791 struct nfs_fh * fh;
792 struct nfs_fattr * fattr;
793 };
794
795 struct nfs3_accessres {
796 struct nfs_fattr * fattr;
797 __u32 access;
798 };
799
800 struct nfs3_readlinkargs {
801 struct nfs_fh * fh;
802 unsigned int pgbase;
803 unsigned int pglen;
804 struct page ** pages;
805 };
806
807 struct nfs3_linkres {
808 struct nfs_fattr * dir_attr;
809 struct nfs_fattr * fattr;
810 };
811
812 struct nfs3_readdirres {
813 struct nfs_fattr * dir_attr;
814 __be32 * verf;
815 int plus;
816 };
817
818 struct nfs3_getaclres {
819 struct nfs_fattr * fattr;
820 int mask;
821 unsigned int acl_access_count;
822 unsigned int acl_default_count;
823 struct posix_acl * acl_access;
824 struct posix_acl * acl_default;
825 };
826
827 #ifdef CONFIG_NFS_V4
828
829 typedef u64 clientid4;
830
831 struct nfs4_accessargs {
832 const struct nfs_fh * fh;
833 const u32 * bitmask;
834 u32 access;
835 struct nfs4_sequence_args seq_args;
836 };
837
838 struct nfs4_accessres {
839 const struct nfs_server * server;
840 struct nfs_fattr * fattr;
841 u32 supported;
842 u32 access;
843 struct nfs4_sequence_res seq_res;
844 };
845
846 struct nfs4_create_arg {
847 u32 ftype;
848 union {
849 struct {
850 struct page ** pages;
851 unsigned int len;
852 } symlink; /* NF4LNK */
853 struct {
854 u32 specdata1;
855 u32 specdata2;
856 } device; /* NF4BLK, NF4CHR */
857 } u;
858 const struct qstr * name;
859 const struct nfs_server * server;
860 const struct iattr * attrs;
861 const struct nfs_fh * dir_fh;
862 const u32 * bitmask;
863 struct nfs4_sequence_args seq_args;
864 };
865
866 struct nfs4_create_res {
867 const struct nfs_server * server;
868 struct nfs_fh * fh;
869 struct nfs_fattr * fattr;
870 struct nfs4_change_info dir_cinfo;
871 struct nfs4_sequence_res seq_res;
872 };
873
874 struct nfs4_fsinfo_arg {
875 const struct nfs_fh * fh;
876 const u32 * bitmask;
877 struct nfs4_sequence_args seq_args;
878 };
879
880 struct nfs4_fsinfo_res {
881 struct nfs_fsinfo *fsinfo;
882 struct nfs4_sequence_res seq_res;
883 };
884
885 struct nfs4_getattr_arg {
886 const struct nfs_fh * fh;
887 const u32 * bitmask;
888 struct nfs4_sequence_args seq_args;
889 };
890
891 struct nfs4_getattr_res {
892 const struct nfs_server * server;
893 struct nfs_fattr * fattr;
894 struct nfs4_sequence_res seq_res;
895 };
896
897 struct nfs4_link_arg {
898 const struct nfs_fh * fh;
899 const struct nfs_fh * dir_fh;
900 const struct qstr * name;
901 const u32 * bitmask;
902 struct nfs4_sequence_args seq_args;
903 };
904
905 struct nfs4_link_res {
906 const struct nfs_server * server;
907 struct nfs_fattr * fattr;
908 struct nfs4_change_info cinfo;
909 struct nfs_fattr * dir_attr;
910 struct nfs4_sequence_res seq_res;
911 };
912
913
914 struct nfs4_lookup_arg {
915 const struct nfs_fh * dir_fh;
916 const struct qstr * name;
917 const u32 * bitmask;
918 struct nfs4_sequence_args seq_args;
919 };
920
921 struct nfs4_lookup_res {
922 const struct nfs_server * server;
923 struct nfs_fattr * fattr;
924 struct nfs_fh * fh;
925 struct nfs4_sequence_res seq_res;
926 };
927
928 struct nfs4_lookup_root_arg {
929 const u32 * bitmask;
930 struct nfs4_sequence_args seq_args;
931 };
932
933 struct nfs4_pathconf_arg {
934 const struct nfs_fh * fh;
935 const u32 * bitmask;
936 struct nfs4_sequence_args seq_args;
937 };
938
939 struct nfs4_pathconf_res {
940 struct nfs_pathconf *pathconf;
941 struct nfs4_sequence_res seq_res;
942 };
943
944 struct nfs4_readdir_arg {
945 const struct nfs_fh * fh;
946 u64 cookie;
947 nfs4_verifier verifier;
948 u32 count;
949 struct page ** pages; /* zero-copy data */
950 unsigned int pgbase; /* zero-copy data */
951 const u32 * bitmask;
952 int plus;
953 struct nfs4_sequence_args seq_args;
954 };
955
956 struct nfs4_readdir_res {
957 nfs4_verifier verifier;
958 unsigned int pgbase;
959 struct nfs4_sequence_res seq_res;
960 };
961
962 struct nfs4_readlink {
963 const struct nfs_fh * fh;
964 unsigned int pgbase;
965 unsigned int pglen; /* zero-copy data */
966 struct page ** pages; /* zero-copy data */
967 struct nfs4_sequence_args seq_args;
968 };
969
970 struct nfs4_readlink_res {
971 struct nfs4_sequence_res seq_res;
972 };
973
974 #define NFS4_SETCLIENTID_NAMELEN (127)
975 struct nfs4_setclientid {
976 const nfs4_verifier * sc_verifier;
977 unsigned int sc_name_len;
978 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
979 u32 sc_prog;
980 unsigned int sc_netid_len;
981 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
982 unsigned int sc_uaddr_len;
983 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
984 u32 sc_cb_ident;
985 };
986
987 struct nfs4_setclientid_res {
988 u64 clientid;
989 nfs4_verifier confirm;
990 };
991
992 struct nfs4_statfs_arg {
993 const struct nfs_fh * fh;
994 const u32 * bitmask;
995 struct nfs4_sequence_args seq_args;
996 };
997
998 struct nfs4_statfs_res {
999 struct nfs_fsstat *fsstat;
1000 struct nfs4_sequence_res seq_res;
1001 };
1002
1003 struct nfs4_server_caps_arg {
1004 struct nfs_fh *fhandle;
1005 struct nfs4_sequence_args seq_args;
1006 };
1007
1008 struct nfs4_server_caps_res {
1009 u32 attr_bitmask[3];
1010 u32 acl_bitmask;
1011 u32 has_links;
1012 u32 has_symlinks;
1013 u32 fh_expire_type;
1014 struct nfs4_sequence_res seq_res;
1015 };
1016
1017 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1018 struct nfs4_pathname {
1019 unsigned int ncomponents;
1020 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
1021 };
1022
1023 #define NFS4_FS_LOCATION_MAXSERVERS 10
1024 struct nfs4_fs_location {
1025 unsigned int nservers;
1026 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
1027 struct nfs4_pathname rootpath;
1028 };
1029
1030 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1031 struct nfs4_fs_locations {
1032 struct nfs_fattr fattr;
1033 const struct nfs_server *server;
1034 struct nfs4_pathname fs_path;
1035 int nlocations;
1036 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
1037 };
1038
1039 struct nfs4_fs_locations_arg {
1040 const struct nfs_fh *dir_fh;
1041 const struct qstr *name;
1042 struct page *page;
1043 const u32 *bitmask;
1044 struct nfs4_sequence_args seq_args;
1045 };
1046
1047 struct nfs4_fs_locations_res {
1048 struct nfs4_fs_locations *fs_locations;
1049 struct nfs4_sequence_res seq_res;
1050 };
1051
1052 struct nfs4_secinfo_oid {
1053 unsigned int len;
1054 char data[GSS_OID_MAX_LEN];
1055 };
1056
1057 struct nfs4_secinfo_gss {
1058 struct nfs4_secinfo_oid sec_oid4;
1059 unsigned int qop4;
1060 unsigned int service;
1061 };
1062
1063 struct nfs4_secinfo_flavor {
1064 unsigned int flavor;
1065 struct nfs4_secinfo_gss gss;
1066 };
1067
1068 struct nfs4_secinfo_flavors {
1069 unsigned int num_flavors;
1070 struct nfs4_secinfo_flavor flavors[0];
1071 };
1072
1073 struct nfs4_secinfo_arg {
1074 const struct nfs_fh *dir_fh;
1075 const struct qstr *name;
1076 struct nfs4_sequence_args seq_args;
1077 };
1078
1079 struct nfs4_secinfo_res {
1080 struct nfs4_secinfo_flavors *flavors;
1081 struct nfs4_sequence_res seq_res;
1082 };
1083
1084 #endif /* CONFIG_NFS_V4 */
1085
1086 struct nfstime4 {
1087 u64 seconds;
1088 u32 nseconds;
1089 };
1090
1091 #ifdef CONFIG_NFS_V4_1
1092
1093 struct pnfs_commit_bucket {
1094 struct list_head written;
1095 struct list_head committing;
1096 struct pnfs_layout_segment *wlseg;
1097 struct pnfs_layout_segment *clseg;
1098 };
1099
1100 struct pnfs_ds_commit_info {
1101 int nwritten;
1102 int ncommitting;
1103 int nbuckets;
1104 struct pnfs_commit_bucket *buckets;
1105 };
1106
1107 #define NFS4_EXCHANGE_ID_LEN (48)
1108 struct nfs41_exchange_id_args {
1109 struct nfs_client *client;
1110 nfs4_verifier *verifier;
1111 unsigned int id_len;
1112 char id[NFS4_EXCHANGE_ID_LEN];
1113 u32 flags;
1114 };
1115
1116 struct nfs41_server_owner {
1117 uint64_t minor_id;
1118 uint32_t major_id_sz;
1119 char major_id[NFS4_OPAQUE_LIMIT];
1120 };
1121
1122 struct nfs41_server_scope {
1123 uint32_t server_scope_sz;
1124 char server_scope[NFS4_OPAQUE_LIMIT];
1125 };
1126
1127 struct nfs41_impl_id {
1128 char domain[NFS4_OPAQUE_LIMIT + 1];
1129 char name[NFS4_OPAQUE_LIMIT + 1];
1130 struct nfstime4 date;
1131 };
1132
1133 struct nfs41_bind_conn_to_session_res {
1134 struct nfs4_session *session;
1135 u32 dir;
1136 bool use_conn_in_rdma_mode;
1137 };
1138
1139 struct nfs41_exchange_id_res {
1140 u64 clientid;
1141 u32 seqid;
1142 u32 flags;
1143 struct nfs41_server_owner *server_owner;
1144 struct nfs41_server_scope *server_scope;
1145 struct nfs41_impl_id *impl_id;
1146 };
1147
1148 struct nfs41_create_session_args {
1149 struct nfs_client *client;
1150 uint32_t flags;
1151 uint32_t cb_program;
1152 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1153 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1154 };
1155
1156 struct nfs41_create_session_res {
1157 struct nfs_client *client;
1158 };
1159
1160 struct nfs41_reclaim_complete_args {
1161 /* In the future extend to include curr_fh for use with migration */
1162 unsigned char one_fs:1;
1163 struct nfs4_sequence_args seq_args;
1164 };
1165
1166 struct nfs41_reclaim_complete_res {
1167 struct nfs4_sequence_res seq_res;
1168 };
1169
1170 #define SECINFO_STYLE_CURRENT_FH 0
1171 #define SECINFO_STYLE_PARENT 1
1172 struct nfs41_secinfo_no_name_args {
1173 int style;
1174 struct nfs4_sequence_args seq_args;
1175 };
1176
1177 struct nfs41_test_stateid_args {
1178 nfs4_stateid *stateid;
1179 struct nfs4_sequence_args seq_args;
1180 };
1181
1182 struct nfs41_test_stateid_res {
1183 unsigned int status;
1184 struct nfs4_sequence_res seq_res;
1185 };
1186
1187 struct nfs41_free_stateid_args {
1188 nfs4_stateid *stateid;
1189 struct nfs4_sequence_args seq_args;
1190 };
1191
1192 struct nfs41_free_stateid_res {
1193 unsigned int status;
1194 struct nfs4_sequence_res seq_res;
1195 };
1196
1197 #else
1198
1199 struct pnfs_ds_commit_info {
1200 };
1201
1202 #endif /* CONFIG_NFS_V4_1 */
1203
1204 struct nfs_page;
1205
1206 #define NFS_PAGEVEC_SIZE (8U)
1207
1208 struct nfs_page_array {
1209 struct page **pagevec;
1210 unsigned int npages; /* Max length of pagevec */
1211 struct page *page_array[NFS_PAGEVEC_SIZE];
1212 };
1213
1214 struct nfs_read_data {
1215 struct nfs_pgio_header *header;
1216 struct list_head list;
1217 struct rpc_task task;
1218 struct nfs_fattr fattr; /* fattr storage */
1219 struct nfs_readargs args;
1220 struct nfs_readres res;
1221 unsigned long timestamp; /* For lease renewal */
1222 int (*read_done_cb) (struct rpc_task *task, struct nfs_read_data *data);
1223 __u64 mds_offset;
1224 struct nfs_page_array pages;
1225 struct nfs_client *ds_clp; /* pNFS data server */
1226 };
1227
1228 /* used as flag bits in nfs_pgio_header */
1229 enum {
1230 NFS_IOHDR_ERROR = 0,
1231 NFS_IOHDR_EOF,
1232 NFS_IOHDR_REDO,
1233 NFS_IOHDR_NEED_COMMIT,
1234 NFS_IOHDR_NEED_RESCHED,
1235 };
1236
1237 struct nfs_pgio_header {
1238 struct inode *inode;
1239 struct rpc_cred *cred;
1240 struct list_head pages;
1241 struct list_head rpc_list;
1242 atomic_t refcnt;
1243 struct nfs_page *req;
1244 struct nfs_writeverf *verf;
1245 struct pnfs_layout_segment *lseg;
1246 loff_t io_start;
1247 const struct rpc_call_ops *mds_ops;
1248 void (*release) (struct nfs_pgio_header *hdr);
1249 const struct nfs_pgio_completion_ops *completion_ops;
1250 struct nfs_direct_req *dreq;
1251 spinlock_t lock;
1252 /* fields protected by lock */
1253 int pnfs_error;
1254 int error; /* merge with pnfs_error */
1255 unsigned long good_bytes; /* boundary of good data */
1256 unsigned long flags;
1257 };
1258
1259 struct nfs_read_header {
1260 struct nfs_pgio_header header;
1261 struct nfs_read_data rpc_data;
1262 };
1263
1264 struct nfs_write_data {
1265 struct nfs_pgio_header *header;
1266 struct list_head list;
1267 struct rpc_task task;
1268 struct nfs_fattr fattr;
1269 struct nfs_writeverf verf;
1270 struct nfs_writeargs args; /* argument struct */
1271 struct nfs_writeres res; /* result struct */
1272 unsigned long timestamp; /* For lease renewal */
1273 int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data);
1274 __u64 mds_offset; /* Filelayout dense stripe */
1275 struct nfs_page_array pages;
1276 struct nfs_client *ds_clp; /* pNFS data server */
1277 };
1278
1279 struct nfs_write_header {
1280 struct nfs_pgio_header header;
1281 struct nfs_write_data rpc_data;
1282 struct nfs_writeverf verf;
1283 };
1284
1285 struct nfs_mds_commit_info {
1286 atomic_t rpcs_out;
1287 unsigned long ncommit;
1288 struct list_head list;
1289 };
1290
1291 struct nfs_commit_data;
1292 struct nfs_inode;
1293 struct nfs_commit_completion_ops {
1294 void (*error_cleanup) (struct nfs_inode *nfsi);
1295 void (*completion) (struct nfs_commit_data *data);
1296 };
1297
1298 struct nfs_commit_info {
1299 spinlock_t *lock;
1300 struct nfs_mds_commit_info *mds;
1301 struct pnfs_ds_commit_info *ds;
1302 struct nfs_direct_req *dreq; /* O_DIRECT request */
1303 const struct nfs_commit_completion_ops *completion_ops;
1304 };
1305
1306 struct nfs_commit_data {
1307 struct rpc_task task;
1308 struct inode *inode;
1309 struct rpc_cred *cred;
1310 struct nfs_fattr fattr;
1311 struct nfs_writeverf verf;
1312 struct list_head pages; /* Coalesced requests we wish to flush */
1313 struct list_head list; /* lists of struct nfs_write_data */
1314 struct nfs_direct_req *dreq; /* O_DIRECT request */
1315 struct nfs_commitargs args; /* argument struct */
1316 struct nfs_commitres res; /* result struct */
1317 struct nfs_open_context *context;
1318 struct pnfs_layout_segment *lseg;
1319 struct nfs_client *ds_clp; /* pNFS data server */
1320 int ds_commit_index;
1321 const struct rpc_call_ops *mds_ops;
1322 const struct nfs_commit_completion_ops *completion_ops;
1323 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
1324 };
1325
1326 struct nfs_pgio_completion_ops {
1327 void (*error_cleanup)(struct list_head *head);
1328 void (*init_hdr)(struct nfs_pgio_header *hdr);
1329 void (*completion)(struct nfs_pgio_header *hdr);
1330 };
1331
1332 struct nfs_unlinkdata {
1333 struct hlist_node list;
1334 struct nfs_removeargs args;
1335 struct nfs_removeres res;
1336 struct inode *dir;
1337 struct rpc_cred *cred;
1338 struct nfs_fattr dir_attr;
1339 };
1340
1341 struct nfs_renamedata {
1342 struct nfs_renameargs args;
1343 struct nfs_renameres res;
1344 struct rpc_cred *cred;
1345 struct inode *old_dir;
1346 struct dentry *old_dentry;
1347 struct nfs_fattr old_fattr;
1348 struct inode *new_dir;
1349 struct dentry *new_dentry;
1350 struct nfs_fattr new_fattr;
1351 };
1352
1353 struct nfs_access_entry;
1354 struct nfs_client;
1355 struct rpc_timeout;
1356
1357 /*
1358 * RPC procedure vector for NFSv2/NFSv3 demuxing
1359 */
1360 struct nfs_rpc_ops {
1361 u32 version; /* Protocol version */
1362 const struct dentry_operations *dentry_ops;
1363 const struct inode_operations *dir_inode_ops;
1364 const struct inode_operations *file_inode_ops;
1365 const struct file_operations *file_ops;
1366
1367 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1368 struct nfs_fsinfo *);
1369 struct vfsmount *(*submount) (struct nfs_server *, struct dentry *,
1370 struct nfs_fh *, struct nfs_fattr *);
1371 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1372 struct nfs_fattr *);
1373 int (*setattr) (struct dentry *, struct nfs_fattr *,
1374 struct iattr *);
1375 int (*lookup) (struct inode *, struct qstr *,
1376 struct nfs_fh *, struct nfs_fattr *);
1377 int (*access) (struct inode *, struct nfs_access_entry *);
1378 int (*readlink)(struct inode *, struct page *, unsigned int,
1379 unsigned int);
1380 int (*create) (struct inode *, struct dentry *,
1381 struct iattr *, int, struct nfs_open_context *);
1382 int (*remove) (struct inode *, struct qstr *);
1383 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1384 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
1385 int (*unlink_done) (struct rpc_task *, struct inode *);
1386 int (*rename) (struct inode *, struct qstr *,
1387 struct inode *, struct qstr *);
1388 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1389 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
1390 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1391 int (*link) (struct inode *, struct inode *, struct qstr *);
1392 int (*symlink) (struct inode *, struct dentry *, struct page *,
1393 unsigned int, struct iattr *);
1394 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1395 int (*rmdir) (struct inode *, struct qstr *);
1396 int (*readdir) (struct dentry *, struct rpc_cred *,
1397 u64, struct page **, unsigned int, int);
1398 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1399 dev_t);
1400 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1401 struct nfs_fsstat *);
1402 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1403 struct nfs_fsinfo *);
1404 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1405 struct nfs_pathconf *);
1406 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1407 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1408 void (*read_setup) (struct nfs_read_data *, struct rpc_message *);
1409 void (*read_rpc_prepare)(struct rpc_task *, struct nfs_read_data *);
1410 int (*read_done) (struct rpc_task *, struct nfs_read_data *);
1411 void (*write_setup) (struct nfs_write_data *, struct rpc_message *);
1412 void (*write_rpc_prepare)(struct rpc_task *, struct nfs_write_data *);
1413 int (*write_done) (struct rpc_task *, struct nfs_write_data *);
1414 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *);
1415 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
1416 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *);
1417 int (*lock)(struct file *, int, struct file_lock *);
1418 int (*lock_check_bounds)(const struct file_lock *);
1419 void (*clear_acl_cache)(struct inode *);
1420 void (*close_context)(struct nfs_open_context *ctx, int);
1421 struct inode * (*open_context) (struct inode *dir,
1422 struct nfs_open_context *ctx,
1423 int open_flags,
1424 struct iattr *iattr);
1425 int (*have_delegation)(struct inode *, fmode_t);
1426 struct nfs_client *
1427 (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1428 const char *, rpc_authflavor_t);
1429 };
1430
1431 /*
1432 * NFS_CALL(getattr, inode, (fattr));
1433 * into
1434 * NFS_PROTO(inode)->getattr(fattr);
1435 */
1436 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1437
1438 /*
1439 * Function vectors etc. for the NFS client
1440 */
1441 extern const struct nfs_rpc_ops nfs_v2_clientops;
1442 extern const struct nfs_rpc_ops nfs_v3_clientops;
1443 extern const struct nfs_rpc_ops nfs_v4_clientops;
1444 extern const struct rpc_version nfs_version2;
1445 extern const struct rpc_version nfs_version3;
1446 extern const struct rpc_version nfs_version4;
1447
1448 extern const struct rpc_version nfsacl_version3;
1449 extern const struct rpc_program nfsacl_program;
1450
1451 #endif
kernel source for telekom puls (alcatel/mediatek)