aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/nfs4.h
blob: af2d2fa30eee960a6b0f263f43e6b4a39ad5f245 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
/*
 *  include/linux/nfs4.h
 *
 *  NFSv4 protocol definitions.
 *
 *  Copyright (c) 2002 The Regents of the University of Michigan.
 *  All rights reserved.
 *
 *  Kendrick Smith <kmsmith@umich.edu>
 *  Andy Adamson   <andros@umich.edu>
 */

#ifndef _LINUX_NFS4_H
#define _LINUX_NFS4_H

#include <linux/types.h>

#define NFS4_BITMAP_SIZE	2
#define NFS4_VERIFIER_SIZE	8
#define NFS4_STATEID_SEQID_SIZE 4
#define NFS4_STATEID_OTHER_SIZE 12
#define NFS4_STATEID_SIZE	(NFS4_STATEID_SEQID_SIZE + NFS4_STATEID_OTHER_SIZE)
#define NFS4_FHSIZE		128
#define NFS4_MAXPATHLEN		PATH_MAX
#define NFS4_MAXNAMLEN		NAME_MAX
#define NFS4_OPAQUE_LIMIT	1024
#define NFS4_MAX_SESSIONID_LEN	16

#define NFS4_ACCESS_READ        0x0001
#define NFS4_ACCESS_LOOKUP      0x0002
#define NFS4_ACCESS_MODIFY      0x0004
#define NFS4_ACCESS_EXTEND      0x0008
#define NFS4_ACCESS_DELETE      0x0010
#define NFS4_ACCESS_EXECUTE     0x0020

#define NFS4_FH_PERSISTENT		0x0000
#define NFS4_FH_NOEXPIRE_WITH_OPEN	0x0001
#define NFS4_FH_VOLATILE_ANY		0x0002
#define NFS4_FH_VOL_MIGRATION		0x0004
#define NFS4_FH_VOL_RENAME		0x0008

#define NFS4_OPEN_RESULT_CONFIRM 0x0002
#define NFS4_OPEN_RESULT_LOCKTYPE_POSIX 0x0004

#define NFS4_SHARE_ACCESS_MASK	0x000F
#define NFS4_SHARE_ACCESS_READ	0x0001
#define NFS4_SHARE_ACCESS_WRITE	0x0002
#define NFS4_SHARE_ACCESS_BOTH	0x0003
#define NFS4_SHARE_DENY_READ	0x0001
#define NFS4_SHARE_DENY_WRITE	0x0002
#define NFS4_SHARE_DENY_BOTH	0x0003

/* nfs41 */
#define NFS4_SHARE_WANT_MASK		0xFF00
#define NFS4_SHARE_WANT_NO_PREFERENCE	0x0000
#define NFS4_SHARE_WANT_READ_DELEG	0x0100
#define NFS4_SHARE_WANT_WRITE_DELEG	0x0200
#define NFS4_SHARE_WANT_ANY_DELEG	0x0300
#define NFS4_SHARE_WANT_NO_DELEG	0x0400
#define NFS4_SHARE_WANT_CANCEL		0x0500

#define NFS4_SHARE_WHEN_MASK		0xF0000
#define NFS4_SHARE_SIGNAL_DELEG_WHEN_RESRC_AVAIL	0x10000
#define NFS4_SHARE_PUSH_DELEG_WHEN_UNCONTENDED		0x20000

#define NFS4_CDFC4_FORE	0x1
#define NFS4_CDFC4_BACK 0x2
#define NFS4_CDFC4_BOTH 0x3
#define NFS4_CDFC4_FORE_OR_BOTH 0x3
#define NFS4_CDFC4_BACK_OR_BOTH 0x7

#define NFS4_CDFS4_FORE 0x1
#define NFS4_CDFS4_BACK 0x2
#define NFS4_CDFS4_BOTH 0x3

#define NFS4_SET_TO_SERVER_TIME	0
#define NFS4_SET_TO_CLIENT_TIME	1

#define NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE 0
#define NFS4_ACE_ACCESS_DENIED_ACE_TYPE  1
#define NFS4_ACE_SYSTEM_AUDIT_ACE_TYPE   2
#define NFS4_ACE_SYSTEM_ALARM_ACE_TYPE   3

#define ACL4_SUPPORT_ALLOW_ACL 0x01
#define ACL4_SUPPORT_DENY_ACL  0x02
#define ACL4_SUPPORT_AUDIT_ACL 0x04
#define ACL4_SUPPORT_ALARM_ACL 0x08

#define NFS4_ACE_FILE_INHERIT_ACE             0x00000001
#define NFS4_ACE_DIRECTORY_INHERIT_ACE        0x00000002
#define NFS4_ACE_NO_PROPAGATE_INHERIT_ACE     0x00000004
#define NFS4_ACE_INHERIT_ONLY_ACE             0x00000008
#define NFS4_ACE_SUCCESSFUL_ACCESS_ACE_FLAG   0x00000010
#define NFS4_ACE_FAILED_ACCESS_ACE_FLAG       0x00000020
#define NFS4_ACE_IDENTIFIER_GROUP             0x00000040

#define NFS4_ACE_READ_DATA                    0x00000001
#define NFS4_ACE_LIST_DIRECTORY               0x00000001
#define NFS4_ACE_WRITE_DATA                   0x00000002
#define NFS4_ACE_ADD_FILE                     0x00000002
#define NFS4_ACE_APPEND_DATA                  0x00000004
#define NFS4_ACE_ADD_SUBDIRECTORY             0x00000004
#define NFS4_ACE_READ_NAMED_ATTRS             0x00000008
#define NFS4_ACE_WRITE_NAMED_ATTRS            0x00000010
#define NFS4_ACE_EXECUTE                      0x00000020
#define NFS4_ACE_DELETE_CHILD                 0x00000040
#define NFS4_ACE_READ_ATTRIBUTES              0x00000080
#define NFS4_ACE_WRITE_ATTRIBUTES             0x00000100
#define NFS4_ACE_DELETE                       0x00010000
#define NFS4_ACE_READ_ACL                     0x00020000
#define NFS4_ACE_WRITE_ACL                    0x00040000
#define NFS4_ACE_WRITE_OWNER                  0x00080000
#define NFS4_ACE_SYNCHRONIZE                  0x00100000
#define NFS4_ACE_GENERIC_READ                 0x00120081
#define NFS4_ACE_GENERIC_WRITE                0x00160106
#define NFS4_ACE_GENERIC_EXECUTE              0x001200A0
#define NFS4_ACE_MASK_ALL                     0x001F01FF

#define EXCHGID4_FLAG_SUPP_MOVED_REFER		0x00000001
#define EXCHGID4_FLAG_SUPP_MOVED_MIGR		0x00000002
#define EXCHGID4_FLAG_BIND_PRINC_STATEID	0x00000100

#define EXCHGID4_FLAG_USE_NON_PNFS		0x00010000
#define EXCHGID4_FLAG_USE_PNFS_MDS		0x00020000
#define EXCHGID4_FLAG_USE_PNFS_DS		0x00040000
#define EXCHGID4_FLAG_MASK_PNFS			0x00070000

#define EXCHGID4_FLAG_UPD_CONFIRMED_REC_A	0x40000000
#define EXCHGID4_FLAG_CONFIRMED_R		0x80000000
/*
 * Since the validity of these bits depends on whether
 * they're set in the argument or response, have separate
 * invalid flag masks for arg (_A) and resp (_R).
 */
#define EXCHGID4_FLAG_MASK_A			0x40070103
#define EXCHGID4_FLAG_MASK_R			0x80070103

#define SEQ4_STATUS_CB_PATH_DOWN		0x00000001
#define SEQ4_STATUS_CB_GSS_CONTEXTS_EXPIRING	0x00000002
#define SEQ4_STATUS_CB_GSS_CONTEXTS_EXPIRED	0x00000004
#define SEQ4_STATUS_EXPIRED_ALL_STATE_REVOKED	0x00000008
#define SEQ4_STATUS_EXPIRED_SOME_STATE_REVOKED	0x00000010
#define SEQ4_STATUS_ADMIN_STATE_REVOKED		0x00000020
#define SEQ4_STATUS_RECALLABLE_STATE_REVOKED	0x00000040
#define SEQ4_STATUS_LEASE_MOVED			0x00000080
#define SEQ4_STATUS_RESTART_RECLAIM_NEEDED	0x00000100
#define SEQ4_STATUS_CB_PATH_DOWN_SESSION	0x00000200
#define SEQ4_STATUS_BACKCHANNEL_FAULT		0x00000400

#define NFS4_SECINFO_STYLE4_CURRENT_FH	0
#define NFS4_SECINFO_STYLE4_PARENT	1

#define NFS4_MAX_UINT64	(~(u64)0)

/* An NFS4 sessions server must support at least NFS4_MAX_OPS operations.
 * If a compound requires more operations, adjust NFS4_MAX_OPS accordingly.
 */
#define NFS4_MAX_OPS   8

/* Our NFS4 client back channel server only wants the cb_sequene and the
 * actual operation per compound
 */
#define NFS4_MAX_BACK_CHANNEL_OPS 2

enum nfs4_acl_whotype {
	NFS4_ACL_WHO_NAMED = 0,
	NFS4_ACL_WHO_OWNER,
	NFS4_ACL_WHO_GROUP,
	NFS4_ACL_WHO_EVERYONE,
};

#ifdef __KERNEL__
#include <linux/list.h>

struct nfs4_ace {
	uint32_t	type;
	uint32_t	flag;
	uint32_t	access_mask;
	int		whotype;
	uid_t		who;
};

struct nfs4_acl {
	uint32_t	naces;
	struct nfs4_ace	aces[0];
};

typedef struct { char data[NFS4_VERIFIER_SIZE]; } nfs4_verifier;

struct nfs_stateid4 {
	__be32 seqid;
	char other[NFS4_STATEID_OTHER_SIZE];
} __attribute__ ((packed));

typedef struct nfs_stateid4 nfs4_stateid;

enum nfs_opnum4 {
	OP_ACCESS = 3,
	OP_CLOSE = 4,
	OP_COMMIT = 5,
	OP_CREATE = 6,
	OP_DELEGPURGE = 7,
	OP_DELEGRETURN = 8,
	OP_GETATTR = 9,
	OP_GETFH = 10,
	OP_LINK = 11,
	OP_LOCK = 12,
	OP_LOCKT = 13,
	OP_LOCKU = 14,
	OP_LOOKUP = 15,
	OP_LOOKUPP = 16,
	OP_NVERIFY = 17,
	OP_OPEN = 18,
	OP_OPENATTR = 19,
	OP_OPEN_CONFIRM = 20,
	OP_OPEN_DOWNGRADE = 21,
	OP_PUTFH = 22,
	OP_PUTPUBFH = 23,
	OP_PUTROOTFH = 24,
	OP_READ = 25,
	OP_READDIR = 26,
	OP_READLINK = 27,
	OP_REMOVE = 28,
	OP_RENAME = 29,
	OP_RENEW = 30,
	OP_RESTOREFH = 31,
	OP_SAVEFH = 32,
	OP_SECINFO = 33,
	OP_SETATTR = 34,
	OP_SETCLIENTID = 35,
	OP_SETCLIENTID_CONFIRM = 36,
	OP_VERIFY = 37,
	OP_WRITE = 38,
	OP_RELEASE_LOCKOWNER = 39,

	/* nfs41 */
	OP_BACKCHANNEL_CTL = 40,
	OP_BIND_CONN_TO_SESSION = 41,
	OP_EXCHANGE_ID = 42,
	OP_CREATE_SESSION = 43,
	OP_DESTROY_SESSION = 44,
	OP_FREE_STATEID = 45,
	OP_GET_DIR_DELEGATION = 46,
	OP_GETDEVICEINFO = 47,
	OP_GETDEVICELIST = 48,
	OP_LAYOUTCOMMIT = 49,
	OP_LAYOUTGET = 50,
	OP_LAYOUTRETURN = 51,
	OP_SECINFO_NO_NAME = 52,
	OP_SEQUENCE = 53,
	OP_SET_SSV = 54,
	OP_TEST_STATEID = 55,
	OP_WANT_DELEGATION = 56,
	OP_DESTROY_CLIENTID = 57,
	OP_RECLAIM_COMPLETE = 58,

	OP_ILLEGAL = 10044,
};

/*Defining first and last NFS4 operations implemented.
Needs to be updated if more operations are defined in future.*/

#define FIRST_NFS4_OP	OP_ACCESS
#define LAST_NFS4_OP 	OP_RECLAIM_COMPLETE

enum nfsstat4 {
	NFS4_OK = 0,
	NFS4ERR_PERM = 1,
	NFS4ERR_NOENT = 2,
	NFS4ERR_IO = 5,
	NFS4ERR_NXIO = 6,
	NFS4ERR_ACCESS = 13,
	NFS4ERR_EXIST = 17,
	NFS4ERR_XDEV = 18,
	/* Unused/reserved 19 */
	NFS4ERR_NOTDIR = 20,
	NFS4ERR_ISDIR = 21,
	NFS4ERR_INVAL = 22,
	NFS4ERR_FBIG = 27,
	NFS4ERR_NOSPC = 28,
	NFS4ERR_ROFS = 30,
	NFS4ERR_MLINK = 31,
	NFS4ERR_NAMETOOLONG = 63,
	NFS4ERR_NOTEMPTY = 66,
	NFS4ERR_DQUOT = 69,
	NFS4ERR_STALE = 70,
	NFS4ERR_BADHANDLE = 10001,
	NFS4ERR_BAD_COOKIE = 10003,
	NFS4ERR_NOTSUPP = 10004,
	NFS4ERR_TOOSMALL = 10005,
	NFS4ERR_SERVERFAULT = 10006,
	NFS4ERR_BADTYPE = 10007,
	NFS4ERR_DELAY = 10008,
	NFS4ERR_SAME = 10009,
	NFS4ERR_DENIED = 10010,
	NFS4ERR_EXPIRED = 10011,
	NFS4ERR_LOCKED = 10012,
	NFS4ERR_GRACE = 10013,
	NFS4ERR_FHEXPIRED = 10014,
	NFS4ERR_SHARE_DENIED = 10015,
	NFS4ERR_WRONGSEC = 10016,
	NFS4ERR_CLID_INUSE = 10017,
	NFS4ERR_RESOURCE = 10018,
	NFS4ERR_MOVED = 10019,
	NFS4ERR_NOFILEHANDLE = 10020,
	NFS4ERR_MINOR_VERS_MISMATCH = 10021,
	NFS4ERR_STALE_CLIENTID = 10022,
	NFS4ERR_STALE_STATEID = 10023,
	NFS4ERR_OLD_STATEID = 10024,
	NFS4ERR_BAD_STATEID = 10025,
	NFS4ERR_BAD_SEQID = 10026,
	NFS4ERR_NOT_SAME = 10027,
	NFS4ERR_LOCK_RANGE = 10028,
	NFS4ERR_SYMLINK = 10029,
	NFS4ERR_RESTOREFH = 10030,
	NFS4ERR_LEASE_MOVED = 10031,
	NFS4ERR_ATTRNOTSUPP = 10032,
	NFS4ERR_NO_GRACE = 10033,
	NFS4ERR_RECLAIM_BAD = 10034,
	NFS4ERR_RECLAIM_CONFLICT = 10035,
	NFS4ERR_BADXDR = 10036,
	NFS4ERR_LOCKS_HELD = 10037,
	NFS4ERR_OPENMODE = 10038,
	NFS4ERR_BADOWNER = 10039,
	NFS4ERR_BADCHAR = 10040,
	NFS4ERR_BADNAME = 10041,
	NFS4ERR_BAD_RANGE = 10042,
	NFS4ERR_LOCK_NOTSUPP = 10043,
	NFS4ERR_OP_ILLEGAL = 10044,
	NFS4ERR_DEADLOCK = 10045,
	NFS4ERR_FILE_OPEN = 10046,
	NFS4ERR_ADMIN_REVOKED = 10047,
	NFS4ERR_CB_PATH_DOWN = 10048,

	/* nfs41 */
	NFS4ERR_BADIOMODE	= 10049,
	NFS4ERR_BADLAYOUT	= 10050,
	NFS4ERR_BAD_SESSION_DIGEST = 10051,
	NFS4ERR_BADSESSION	= 10052,
	NFS4ERR_BADSLOT		= 10053,
	NFS4ERR_COMPLETE_ALREADY = 10054,
	NFS4ERR_CONN_NOT_BOUND_TO_SESSION = 10055,
	NFS4ERR_DELEG_ALREADY_WANTED = 10056,
	NFS4ERR_BACK_CHAN_BUSY	= 10057,	/* backchan reqs outstanding */
	NFS4ERR_LAYOUTTRYLATER	= 10058,
	NFS4ERR_LAYOUTUNAVAILABLE = 10059,
	NFS4ERR_NOMATCHING_LAYOUT = 10060,
	NFS4ERR_RECALLCONFLICT	= 10061,
	NFS4ERR_UNKNOWN_LAYOUTTYPE = 10062,
	NFS4ERR_SEQ_MISORDERED = 10063, 	/* unexpected seq.id in req */
	NFS4ERR_SEQUENCE_POS	= 10064,	/* [CB_]SEQ. op not 1st op */
	NFS4ERR_REQ_TOO_BIG	= 10065,	/* request too big */
	NFS4ERR_REP_TOO_BIG	= 10066,	/* reply too big */
	NFS4ERR_REP_TOO_BIG_TO_CACHE = 10067,	/* rep. not all cached */
	NFS4ERR_RETRY_UNCACHED_REP = 10068,	/* retry & rep. uncached */
	NFS4ERR_UNSAFE_COMPOUND = 10069,	/* retry/recovery too hard */
	NFS4ERR_TOO_MANY_OPS	= 10070,	/* too many ops in [CB_]COMP */
	NFS4ERR_OP_NOT_IN_SESSION = 10071,	/* op needs [CB_]SEQ. op */
	NFS4ERR_HASH_ALG_UNSUPP = 10072,	/* hash alg. not supp. */
						/* Error 10073 is unused. */
	NFS4ERR_CLIENTID_BUSY	= 10074,	/* clientid has state */
	NFS4ERR_PNFS_IO_HOLE	= 10075,	/* IO to _SPARSE file hole */
	NFS4ERR_SEQ_FALSE_RETRY	= 10076,	/* retry not original */
	NFS4ERR_BAD_HIGH_SLOT	= 10077,	/* sequence arg bad */
	NFS4ERR_DEADSESSION	= 10078,	/* persistent session dead */
	NFS4ERR_ENCR_ALG_UNSUPP = 10079,	/* SSV alg mismatch */
	NFS4ERR_PNFS_NO_LAYOUT	= 10080,	/* direct I/O with no layout */
	NFS4ERR_NOT_ONLY_OP	= 10081,	/* bad compound */
	NFS4ERR_WRONG_CRED	= 10082,	/* permissions:state change */
	NFS4ERR_WRONG_TYPE	= 10083,	/* current operation mismatch */
	NFS4ERR_DIRDELEG_UNAVAIL = 10084,	/* no directory delegation */
	NFS4ERR_REJECT_DELEG	= 10085,	/* on callback */
	NFS4ERR_RETURNCONFLICT	= 10086,	/* outstanding layoutreturn */
	NFS4ERR_DELEG_REVOKED	= 10087,	/* deleg./layout revoked */
};

static inline bool seqid_mutating_err(u32 err)
{
	/* rfc 3530 section 8.1.5: */
	switch (err) {
	case NFS4ERR_STALE_CLIENTID:
	case NFS4ERR_STALE_STATEID:
	case NFS4ERR_BAD_STATEID:
	case NFS4ERR_BAD_SEQID:
	case NFS4ERR_BADXDR:
	case NFS4ERR_RESOURCE:
	case NFS4ERR_NOFILEHANDLE:
		return false;
	};
	return true;
}

/*
 * Note: NF4BAD is not actually part of the protocol; it is just used
 * internally by nfsd.
 */
enum nfs_ftype4 {
	NF4BAD		= 0,
        NF4REG          = 1,    /* Regular File */
        NF4DIR          = 2,    /* Directory */
        NF4BLK          = 3,    /* Special File - block device */
        NF4CHR          = 4,    /* Special File - character device */
        NF4LNK          = 5,    /* Symbolic Link */
        NF4SOCK         = 6,    /* Special File - socket */
        NF4FIFO         = 7,    /* Special File - fifo */
        NF4ATTRDIR      = 8,    /* Attribute Directory */
        NF4NAMEDATTR    = 9     /* Named Attribute */
};

enum open_claim_type4 {
	NFS4_OPEN_CLAIM_NULL = 0,
	NFS4_OPEN_CLAIM_PREVIOUS = 1,
	NFS4_OPEN_CLAIM_DELEGATE_CUR = 2,
	NFS4_OPEN_CLAIM_DELEGATE_PREV = 3,
	NFS4_OPEN_CLAIM_FH = 4, /* 4.1 */
	NFS4_OPEN_CLAIM_DELEG_CUR_FH = 5, /* 4.1 */
	NFS4_OPEN_CLAIM_DELEG_PREV_FH = 6, /* 4.1 */
};

enum opentype4 {
	NFS4_OPEN_NOCREATE = 0,
	NFS4_OPEN_CREATE = 1
};

enum createmode4 {
	NFS4_CREATE_UNCHECKED = 0,
	NFS4_CREATE_GUARDED = 1,
	NFS4_CREATE_EXCLUSIVE = 2,
	/*
	 * New to NFSv4.1. If session is persistent,
	 * GUARDED4 MUST be used. Otherwise, use
	 * EXCLUSIVE4_1 instead of EXCLUSIVE4.
	 */
	NFS4_CREATE_EXCLUSIVE4_1 = 3
};

enum limit_by4 {
	NFS4_LIMIT_SIZE = 1,
	NFS4_LIMIT_BLOCKS = 2
};

enum open_delegation_type4 {
	NFS4_OPEN_DELEGATE_NONE = 0,
	NFS4_OPEN_DELEGATE_READ = 1,
	NFS4_OPEN_DELEGATE_WRITE = 2,
	NFS4_OPEN_DELEGATE_NONE_EXT = 3, /* 4.1 */
};

enum why_no_delegation4 { /* new to v4.1 */
	WND4_NOT_WANTED = 0,
	WND4_CONTENTION = 1,
	WND4_RESOURCE = 2,
	WND4_NOT_SUPP_FTYPE = 3,
	WND4_WRITE_DELEG_NOT_SUPP_FTYPE = 4,
	WND4_NOT_SUPP_UPGRADE = 5,
	WND4_NOT_SUPP_DOWNGRADE = 6,
	WND4_CANCELLED = 7,
	WND4_IS_DIR = 8,
};

enum lock_type4 {
	NFS4_UNLOCK_LT = 0,
	NFS4_READ_LT = 1,
	NFS4_WRITE_LT = 2,
	NFS4_READW_LT = 3,
	NFS4_WRITEW_LT = 4
};


/* Mandatory Attributes */
#define FATTR4_WORD0_SUPPORTED_ATTRS    (1UL << 0)
#define FATTR4_WORD0_TYPE               (1UL << 1)
#define FATTR4_WORD0_FH_EXPIRE_TYPE     (1UL << 2)
#define FATTR4_WORD0_CHANGE             (1UL << 3)
#define FATTR4_WORD0_SIZE               (1UL << 4)
#define FATTR4_WORD0_LINK_SUPPORT       (1UL << 5)
#define FATTR4_WORD0_SYMLINK_SUPPORT    (1UL << 6)
#define FATTR4_WORD0_NAMED_ATTR         (1UL << 7)
#define FATTR4_WORD0_FSID               (1UL << 8)
#define FATTR4_WORD0_UNIQUE_HANDLES     (1UL << 9)
#define FATTR4_WORD0_LEASE_TIME         (1UL << 10)
#define FATTR4_WORD0_RDATTR_ERROR       (1UL << 11)
/* Mandatory in NFSv4.1 */
#define FATTR4_WORD2_SUPPATTR_EXCLCREAT (1UL << 11)

/* Recommended Attributes */
#define FATTR4_WORD0_ACL                (1UL << 12)
#define FATTR4_WORD0_ACLSUPPORT         (1UL << 13)
#define FATTR4_WORD0_ARCHIVE            (1UL << 14)
#define FATTR4_WORD0_CANSETTIME         (1UL << 15)
#define FATTR4_WORD0_CASE_INSENSITIVE   (1UL << 16)
#define FATTR4_WORD0_CASE_PRESERVING    (1UL << 17)
#define FATTR4_WORD0_CHOWN_RESTRICTED   (1UL << 18)
#define FATTR4_WORD0_FILEHANDLE         (1UL << 19)
#define FATTR4_WORD0_FILEID             (1UL << 20)
#define FATTR4_WORD0_FILES_AVAIL        (1UL << 21)
#define FATTR4_WORD0_FILES_FREE         (1UL << 22)
#define FATTR4_WORD0_FILES_TOTAL        (1UL << 23)
#define FATTR4_WORD0_FS_LOCATIONS       (1UL << 24)
#define FATTR4_WORD0_HIDDEN             (1UL << 25)
#define FATTR4_WORD0_HOMOGENEOUS        (1UL << 26)
#define FATTR4_WORD0_MAXFILESIZE        (1UL << 27)
#define FATTR4_WORD0_MAXLINK            (1UL << 28)
#define FATTR4_WORD0_MAXNAME            (1UL << 29)
#define FATTR4_WORD0_MAXREAD            (1UL << 30)
#define FATTR4_WORD0_MAXWRITE           (1UL << 31)
#define FATTR4_WORD1_MIMETYPE           (1UL << 0)
#define FATTR4_WORD1_MODE               (1UL << 1)
#define FATTR4_WORD1_NO_TRUNC           (1UL << 2)
#define FATTR4_WORD1_NUMLINKS           (1UL << 3)
#define FATTR4_WORD1_OWNER              (1UL << 4)
#define FATTR4_WORD1_OWNER_GROUP        (1UL << 5)
#define FATTR4_WORD1_QUOTA_HARD         (1UL << 6)
#define FATTR4_WORD1_QUOTA_SOFT         (1UL << 7)
#define FATTR4_WORD1_QUOTA_USED         (1UL << 8)
#define FATTR4_WORD1_RAWDEV             (1UL << 9)
#define FATTR4_WORD1_SPACE_AVAIL        (1UL << 10)
#define FATTR4_WORD1_SPACE_FREE         (1UL << 11)
#define FATTR4_WORD1_SPACE_TOTAL        (1UL << 12)
#define FATTR4_WORD1_SPACE_USED         (1UL << 13)
#define FATTR4_WORD1_SYSTEM             (1UL << 14)
#define FATTR4_WORD1_TIME_ACCESS        (1UL << 15)
#define FATTR4_WORD1_TIME_ACCESS_SET    (1UL << 16)
#define FATTR4_WORD1_TIME_BACKUP        (1UL << 17)
#define FATTR4_WORD1_TIME_CREATE        (1UL << 18)
#define FATTR4_WORD1_TIME_DELTA         (1UL << 19)
#define FATTR4_WORD1_TIME_METADATA      (1UL << 20)
#define FATTR4_WORD1_TIME_MODIFY        (1UL << 21)
#define FATTR4_WORD1_TIME_MODIFY_SET    (1UL << 22)
#define FATTR4_WORD1_MOUNTED_ON_FILEID  (1UL << 23)
#define FATTR4_WORD1_FS_LAYOUT_TYPES    (1UL << 30)
#define FATTR4_WORD2_LAYOUT_BLKSIZE     (1UL << 1)
#define FATTR4_WORD2_MDSTHRESHOLD       (1UL << 4)

/* MDS threshold bitmap bits */
#define THRESHOLD_RD                    (1UL << 0)
#define THRESHOLD_WR                    (1UL << 1)
#define THRESHOLD_RD_IO                 (1UL << 2)
#define THRESHOLD_WR_IO                 (1UL << 3)

#define NFSPROC4_NULL 0
#define NFSPROC4_COMPOUND 1
#define NFS4_VERSION 4
#define NFS4_MINOR_VERSION 0

#if defined(CONFIG_NFS_V4_1)
#define NFS4_MAX_MINOR_VERSION 1
#else
#define NFS4_MAX_MINOR_VERSION 0
#endif /* CONFIG_NFS_V4_1 */

#define NFS4_DEBUG 1

/* Index of predefined Linux client operations */

enum {
	NFSPROC4_CLNT_NULL = 0,		/* Unused */
	NFSPROC4_CLNT_READ,
	NFSPROC4_CLNT_WRITE,
	NFSPROC4_CLNT_COMMIT,
	NFSPROC4_CLNT_OPEN,
	NFSPROC4_CLNT_OPEN_CONFIRM,
	NFSPROC4_CLNT_OPEN_NOATTR,
	NFSPROC4_CLNT_OPEN_DOWNGRADE,
	NFSPROC4_CLNT_CLOSE,
	NFSPROC4_CLNT_SETATTR,
	NFSPROC4_CLNT_FSINFO,
	NFSPROC4_CLNT_RENEW,
	NFSPROC4_CLNT_SETCLIENTID,
	NFSPROC4_CLNT_SETCLIENTID_CONFIRM,
	NFSPROC4_CLNT_LOCK,
	NFSPROC4_CLNT_LOCKT,
	NFSPROC4_CLNT_LOCKU,
	NFSPROC4_CLNT_ACCESS,
	NFSPROC4_CLNT_GETATTR,
	NFSPROC4_CLNT_LOOKUP,
	NFSPROC4_CLNT_LOOKUP_ROOT,
	NFSPROC4_CLNT_REMOVE,
	NFSPROC4_CLNT_RENAME,
	NFSPROC4_CLNT_LINK,
	NFSPROC4_CLNT_SYMLINK,
	NFSPROC4_CLNT_CREATE,
	NFSPROC4_CLNT_PATHCONF,
	NFSPROC4_CLNT_STATFS,
	NFSPROC4_CLNT_READLINK,
	NFSPROC4_CLNT_READDIR,
	NFSPROC4_CLNT_SERVER_CAPS,
	NFSPROC4_CLNT_DELEGRETURN,
	NFSPROC4_CLNT_GETACL,
	NFSPROC4_CLNT_SETACL,
	NFSPROC4_CLNT_FS_LOCATIONS,
	NFSPROC4_CLNT_RELEASE_LOCKOWNER,
	NFSPROC4_CLNT_SECINFO,

	/* nfs41 */
	NFSPROC4_CLNT_EXCHANGE_ID,
	NFSPROC4_CLNT_CREATE_SESSION,
	NFSPROC4_CLNT_DESTROY_SESSION,
	NFSPROC4_CLNT_SEQUENCE,
	NFSPROC4_CLNT_GET_LEASE_TIME,
	NFSPROC4_CLNT_RECLAIM_COMPLETE,
	NFSPROC4_CLNT_LAYOUTGET,
	NFSPROC4_CLNT_GETDEVICEINFO,
	NFSPROC4_CLNT_LAYOUTCOMMIT,
	NFSPROC4_CLNT_LAYOUTRETURN,
	NFSPROC4_CLNT_SECINFO_NO_NAME,
	NFSPROC4_CLNT_TEST_STATEID,
	NFSPROC4_CLNT_FREE_STATEID,
	NFSPROC4_CLNT_GETDEVICELIST,
	NFSPROC4_CLNT_BIND_CONN_TO_SESSION,
	NFSPROC4_CLNT_DESTROY_CLIENTID,
};

/* nfs41 types */
struct nfs4_sessionid {
	unsigned char data[NFS4_MAX_SESSIONID_LEN];
};

/* Create Session Flags */
#define SESSION4_PERSIST	0x001
#define SESSION4_BACK_CHAN	0x002
#define SESSION4_RDMA		0x004

#define SESSION4_FLAG_MASK_A	0x007

enum state_protect_how4 {
	SP4_NONE	= 0,
	SP4_MACH_CRED	= 1,
	SP4_SSV		= 2
};

enum pnfs_layouttype {
	LAYOUT_NFSV4_1_FILES  = 1,
	LAYOUT_OSD2_OBJECTS = 2,
	LAYOUT_BLOCK_VOLUME = 3,
};

/* used for both layout return and recall */
enum pnfs_layoutreturn_type {
	RETURN_FILE = 1,
	RETURN_FSID = 2,
	RETURN_ALL  = 3
};

enum pnfs_iomode {
	IOMODE_READ = 1,
	IOMODE_RW = 2,
	IOMODE_ANY = 3,
};

enum pnfs_notify_deviceid_type4 {
	NOTIFY_DEVICEID4_CHANGE = 1 << 1,
	NOTIFY_DEVICEID4_DELETE = 1 << 2,
};

#define NFL4_UFLG_MASK			0x0000003F
#define NFL4_UFLG_DENSE			0x00000001
#define NFL4_UFLG_COMMIT_THRU_MDS	0x00000002
#define NFL4_UFLG_STRIPE_UNIT_SIZE_MASK	0xFFFFFFC0

/* Encoded in the loh_body field of type layouthint4 */
enum filelayout_hint_care4 {
	NFLH4_CARE_DENSE		= NFL4_UFLG_DENSE,
	NFLH4_CARE_COMMIT_THRU_MDS	= NFL4_UFLG_COMMIT_THRU_MDS,
	NFLH4_CARE_STRIPE_UNIT_SIZE	= 0x00000040,
	NFLH4_CARE_STRIPE_COUNT		= 0x00000080
};

#define NFS4_DEVICEID4_SIZE 16

struct nfs4_deviceid {
	char data[NFS4_DEVICEID4_SIZE];
};

#endif
#endif

/*
 * Local variables:
 *  c-basic-offset: 8
 * End:
 */