4 * NFSv4 protocol definitions.
6 * Copyright (c) 2002 The Regents of the University of Michigan.
9 * Kendrick Smith <kmsmith@umich.edu>
10 * Andy Adamson <andros@umich.edu>
16 #include <linux/types.h>
18 #define NFS4_BITMAP_SIZE 2
19 #define NFS4_VERIFIER_SIZE 8
20 #define NFS4_STATEID_SIZE 16
21 #define NFS4_FHSIZE 128
22 #define NFS4_MAXPATHLEN PATH_MAX
23 #define NFS4_MAXNAMLEN NAME_MAX
24 #define NFS4_OPAQUE_LIMIT 1024
25 #define NFS4_MAX_SESSIONID_LEN 16
27 #define NFS4_ACCESS_READ 0x0001
28 #define NFS4_ACCESS_LOOKUP 0x0002
29 #define NFS4_ACCESS_MODIFY 0x0004
30 #define NFS4_ACCESS_EXTEND 0x0008
31 #define NFS4_ACCESS_DELETE 0x0010
32 #define NFS4_ACCESS_EXECUTE 0x0020
34 #define NFS4_FH_PERSISTENT 0x0000
35 #define NFS4_FH_NOEXPIRE_WITH_OPEN 0x0001
36 #define NFS4_FH_VOLATILE_ANY 0x0002
37 #define NFS4_FH_VOL_MIGRATION 0x0004
38 #define NFS4_FH_VOL_RENAME 0x0008
40 #define NFS4_OPEN_RESULT_CONFIRM 0x0002
41 #define NFS4_OPEN_RESULT_LOCKTYPE_POSIX 0x0004
43 #define NFS4_SHARE_ACCESS_MASK 0x000F
44 #define NFS4_SHARE_ACCESS_READ 0x0001
45 #define NFS4_SHARE_ACCESS_WRITE 0x0002
46 #define NFS4_SHARE_ACCESS_BOTH 0x0003
47 #define NFS4_SHARE_DENY_READ 0x0001
48 #define NFS4_SHARE_DENY_WRITE 0x0002
49 #define NFS4_SHARE_DENY_BOTH 0x0003
52 #define NFS4_SHARE_WANT_MASK 0xFF00
53 #define NFS4_SHARE_WANT_NO_PREFERENCE 0x0000
54 #define NFS4_SHARE_WANT_READ_DELEG 0x0100
55 #define NFS4_SHARE_WANT_WRITE_DELEG 0x0200
56 #define NFS4_SHARE_WANT_ANY_DELEG 0x0300
57 #define NFS4_SHARE_WANT_NO_DELEG 0x0400
58 #define NFS4_SHARE_WANT_CANCEL 0x0500
60 #define NFS4_SHARE_WHEN_MASK 0xF0000
61 #define NFS4_SHARE_SIGNAL_DELEG_WHEN_RESRC_AVAIL 0x10000
62 #define NFS4_SHARE_PUSH_DELEG_WHEN_UNCONTENDED 0x20000
64 #define NFS4_SET_TO_SERVER_TIME 0
65 #define NFS4_SET_TO_CLIENT_TIME 1
67 #define NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE 0
68 #define NFS4_ACE_ACCESS_DENIED_ACE_TYPE 1
69 #define NFS4_ACE_SYSTEM_AUDIT_ACE_TYPE 2
70 #define NFS4_ACE_SYSTEM_ALARM_ACE_TYPE 3
72 #define ACL4_SUPPORT_ALLOW_ACL 0x01
73 #define ACL4_SUPPORT_DENY_ACL 0x02
74 #define ACL4_SUPPORT_AUDIT_ACL 0x04
75 #define ACL4_SUPPORT_ALARM_ACL 0x08
77 #define NFS4_ACE_FILE_INHERIT_ACE 0x00000001
78 #define NFS4_ACE_DIRECTORY_INHERIT_ACE 0x00000002
79 #define NFS4_ACE_NO_PROPAGATE_INHERIT_ACE 0x00000004
80 #define NFS4_ACE_INHERIT_ONLY_ACE 0x00000008
81 #define NFS4_ACE_SUCCESSFUL_ACCESS_ACE_FLAG 0x00000010
82 #define NFS4_ACE_FAILED_ACCESS_ACE_FLAG 0x00000020
83 #define NFS4_ACE_IDENTIFIER_GROUP 0x00000040
85 #define NFS4_ACE_READ_DATA 0x00000001
86 #define NFS4_ACE_LIST_DIRECTORY 0x00000001
87 #define NFS4_ACE_WRITE_DATA 0x00000002
88 #define NFS4_ACE_ADD_FILE 0x00000002
89 #define NFS4_ACE_APPEND_DATA 0x00000004
90 #define NFS4_ACE_ADD_SUBDIRECTORY 0x00000004
91 #define NFS4_ACE_READ_NAMED_ATTRS 0x00000008
92 #define NFS4_ACE_WRITE_NAMED_ATTRS 0x00000010
93 #define NFS4_ACE_EXECUTE 0x00000020
94 #define NFS4_ACE_DELETE_CHILD 0x00000040
95 #define NFS4_ACE_READ_ATTRIBUTES 0x00000080
96 #define NFS4_ACE_WRITE_ATTRIBUTES 0x00000100
97 #define NFS4_ACE_DELETE 0x00010000
98 #define NFS4_ACE_READ_ACL 0x00020000
99 #define NFS4_ACE_WRITE_ACL 0x00040000
100 #define NFS4_ACE_WRITE_OWNER 0x00080000
101 #define NFS4_ACE_SYNCHRONIZE 0x00100000
102 #define NFS4_ACE_GENERIC_READ 0x00120081
103 #define NFS4_ACE_GENERIC_WRITE 0x00160106
104 #define NFS4_ACE_GENERIC_EXECUTE 0x001200A0
105 #define NFS4_ACE_MASK_ALL 0x001F01FF
107 #define EXCHGID4_FLAG_SUPP_MOVED_REFER 0x00000001
108 #define EXCHGID4_FLAG_SUPP_MOVED_MIGR 0x00000002
109 #define EXCHGID4_FLAG_USE_NON_PNFS 0x00010000
110 #define EXCHGID4_FLAG_USE_PNFS_MDS 0x00020000
111 #define EXCHGID4_FLAG_USE_PNFS_DS 0x00040000
112 #define EXCHGID4_FLAG_UPD_CONFIRMED_REC_A 0x40000000
113 #define EXCHGID4_FLAG_CONFIRMED_R 0x80000000
115 * Since the validity of these bits depends on whether
116 * they're set in the argument or response, have separate
117 * invalid flag masks for arg (_A) and resp (_R).
119 #define EXCHGID4_FLAG_MASK_A 0x40070003
120 #define EXCHGID4_FLAG_MASK_R 0x80070003
122 #define SEQ4_STATUS_CB_PATH_DOWN 0x00000001
123 #define SEQ4_STATUS_CB_GSS_CONTEXTS_EXPIRING 0x00000002
124 #define SEQ4_STATUS_CB_GSS_CONTEXTS_EXPIRED 0x00000004
125 #define SEQ4_STATUS_EXPIRED_ALL_STATE_REVOKED 0x00000008
126 #define SEQ4_STATUS_EXPIRED_SOME_STATE_REVOKED 0x00000010
127 #define SEQ4_STATUS_ADMIN_STATE_REVOKED 0x00000020
128 #define SEQ4_STATUS_RECALLABLE_STATE_REVOKED 0x00000040
129 #define SEQ4_STATUS_LEASE_MOVED 0x00000080
130 #define SEQ4_STATUS_RESTART_RECLAIM_NEEDED 0x00000100
132 #define NFS4_MAX_UINT64 (~(u64)0)
134 /* An NFS4 sessions server must support at least NFS4_MAX_OPS operations.
135 * If a compound requires more operations, adjust NFS4_MAX_OPS accordingly.
137 #define NFS4_MAX_OPS 8
139 /* Our NFS4 client back channel server only wants the cb_sequene and the
140 * actual operation per compound
142 #define NFS4_MAX_BACK_CHANNEL_OPS 2
144 enum nfs4_acl_whotype
{
145 NFS4_ACL_WHO_NAMED
= 0,
148 NFS4_ACL_WHO_EVERYONE
,
152 #include <linux/list.h>
157 uint32_t access_mask
;
164 struct nfs4_ace aces
[0];
167 typedef struct { char data
[NFS4_VERIFIER_SIZE
]; } nfs4_verifier
;
168 typedef struct { char data
[NFS4_STATEID_SIZE
]; } nfs4_stateid
;
188 OP_OPEN_CONFIRM
= 20,
189 OP_OPEN_DOWNGRADE
= 21,
204 OP_SETCLIENTID_CONFIRM
= 36,
207 OP_RELEASE_LOCKOWNER
= 39,
210 OP_BACKCHANNEL_CTL
= 40,
211 OP_BIND_CONN_TO_SESSION
= 41,
213 OP_CREATE_SESSION
= 43,
214 OP_DESTROY_SESSION
= 44,
215 OP_FREE_STATEID
= 45,
216 OP_GET_DIR_DELEGATION
= 46,
217 OP_GETDEVICEINFO
= 47,
218 OP_GETDEVICELIST
= 48,
219 OP_LAYOUTCOMMIT
= 49,
221 OP_LAYOUTRETURN
= 51,
222 OP_SECINFO_NO_NAME
= 52,
225 OP_TEST_STATEID
= 55,
226 OP_WANT_DELEGATION
= 56,
227 OP_DESTROY_CLIENTID
= 57,
228 OP_RECLAIM_COMPLETE
= 58,
233 /*Defining first and last NFS4 operations implemented.
234 Needs to be updated if more operations are defined in future.*/
236 #define FIRST_NFS4_OP OP_ACCESS
237 #define LAST_NFS4_OP OP_RELEASE_LOCKOWNER
248 /* Unused/reserved 19 */
256 NFS4ERR_NAMETOOLONG
= 63,
257 NFS4ERR_NOTEMPTY
= 66,
260 NFS4ERR_BADHANDLE
= 10001,
261 NFS4ERR_BAD_COOKIE
= 10003,
262 NFS4ERR_NOTSUPP
= 10004,
263 NFS4ERR_TOOSMALL
= 10005,
264 NFS4ERR_SERVERFAULT
= 10006,
265 NFS4ERR_BADTYPE
= 10007,
266 NFS4ERR_DELAY
= 10008,
267 NFS4ERR_SAME
= 10009,
268 NFS4ERR_DENIED
= 10010,
269 NFS4ERR_EXPIRED
= 10011,
270 NFS4ERR_LOCKED
= 10012,
271 NFS4ERR_GRACE
= 10013,
272 NFS4ERR_FHEXPIRED
= 10014,
273 NFS4ERR_SHARE_DENIED
= 10015,
274 NFS4ERR_WRONGSEC
= 10016,
275 NFS4ERR_CLID_INUSE
= 10017,
276 NFS4ERR_RESOURCE
= 10018,
277 NFS4ERR_MOVED
= 10019,
278 NFS4ERR_NOFILEHANDLE
= 10020,
279 NFS4ERR_MINOR_VERS_MISMATCH
= 10021,
280 NFS4ERR_STALE_CLIENTID
= 10022,
281 NFS4ERR_STALE_STATEID
= 10023,
282 NFS4ERR_OLD_STATEID
= 10024,
283 NFS4ERR_BAD_STATEID
= 10025,
284 NFS4ERR_BAD_SEQID
= 10026,
285 NFS4ERR_NOT_SAME
= 10027,
286 NFS4ERR_LOCK_RANGE
= 10028,
287 NFS4ERR_SYMLINK
= 10029,
288 NFS4ERR_RESTOREFH
= 10030,
289 NFS4ERR_LEASE_MOVED
= 10031,
290 NFS4ERR_ATTRNOTSUPP
= 10032,
291 NFS4ERR_NO_GRACE
= 10033,
292 NFS4ERR_RECLAIM_BAD
= 10034,
293 NFS4ERR_RECLAIM_CONFLICT
= 10035,
294 NFS4ERR_BADXDR
= 10036,
295 NFS4ERR_LOCKS_HELD
= 10037,
296 NFS4ERR_OPENMODE
= 10038,
297 NFS4ERR_BADOWNER
= 10039,
298 NFS4ERR_BADCHAR
= 10040,
299 NFS4ERR_BADNAME
= 10041,
300 NFS4ERR_BAD_RANGE
= 10042,
301 NFS4ERR_LOCK_NOTSUPP
= 10043,
302 NFS4ERR_OP_ILLEGAL
= 10044,
303 NFS4ERR_DEADLOCK
= 10045,
304 NFS4ERR_FILE_OPEN
= 10046,
305 NFS4ERR_ADMIN_REVOKED
= 10047,
306 NFS4ERR_CB_PATH_DOWN
= 10048,
309 NFS4ERR_BADIOMODE
= 10049,
310 NFS4ERR_BADLAYOUT
= 10050,
311 NFS4ERR_BAD_SESSION_DIGEST
= 10051,
312 NFS4ERR_BADSESSION
= 10052,
313 NFS4ERR_BADSLOT
= 10053,
314 NFS4ERR_COMPLETE_ALREADY
= 10054,
315 NFS4ERR_CONN_NOT_BOUND_TO_SESSION
= 10055,
316 NFS4ERR_DELEG_ALREADY_WANTED
= 10056,
317 NFS4ERR_BACK_CHAN_BUSY
= 10057, /* backchan reqs outstanding */
318 NFS4ERR_LAYOUTTRYLATER
= 10058,
319 NFS4ERR_LAYOUTUNAVAILABLE
= 10059,
320 NFS4ERR_NOMATCHING_LAYOUT
= 10060,
321 NFS4ERR_RECALLCONFLICT
= 10061,
322 NFS4ERR_UNKNOWN_LAYOUTTYPE
= 10062,
323 NFS4ERR_SEQ_MISORDERED
= 10063, /* unexpected seq.id in req */
324 NFS4ERR_SEQUENCE_POS
= 10064, /* [CB_]SEQ. op not 1st op */
325 NFS4ERR_REQ_TOO_BIG
= 10065, /* request too big */
326 NFS4ERR_REP_TOO_BIG
= 10066, /* reply too big */
327 NFS4ERR_REP_TOO_BIG_TO_CACHE
= 10067, /* rep. not all cached */
328 NFS4ERR_RETRY_UNCACHED_REP
= 10068, /* retry & rep. uncached */
329 NFS4ERR_UNSAFE_COMPOUND
= 10069, /* retry/recovery too hard */
330 NFS4ERR_TOO_MANY_OPS
= 10070, /* too many ops in [CB_]COMP */
331 NFS4ERR_OP_NOT_IN_SESSION
= 10071, /* op needs [CB_]SEQ. op */
332 NFS4ERR_HASH_ALG_UNSUPP
= 10072, /* hash alg. not supp. */
333 /* Error 10073 is unused. */
334 NFS4ERR_CLIENTID_BUSY
= 10074, /* clientid has state */
335 NFS4ERR_PNFS_IO_HOLE
= 10075, /* IO to _SPARSE file hole */
336 NFS4ERR_SEQ_FALSE_RETRY
= 10076, /* retry not origional */
337 NFS4ERR_BAD_HIGH_SLOT
= 10077, /* sequence arg bad */
338 NFS4ERR_DEADSESSION
= 10078, /* persistent session dead */
339 NFS4ERR_ENCR_ALG_UNSUPP
= 10079, /* SSV alg mismatch */
340 NFS4ERR_PNFS_NO_LAYOUT
= 10080, /* direct I/O with no layout */
341 NFS4ERR_NOT_ONLY_OP
= 10081, /* bad compound */
342 NFS4ERR_WRONG_CRED
= 10082, /* permissions:state change */
343 NFS4ERR_WRONG_TYPE
= 10083, /* current operation mismatch */
344 NFS4ERR_DIRDELEG_UNAVAIL
= 10084, /* no directory delegation */
345 NFS4ERR_REJECT_DELEG
= 10085, /* on callback */
346 NFS4ERR_RETURNCONFLICT
= 10086, /* outstanding layoutreturn */
347 NFS4ERR_DELEG_REVOKED
= 10087, /* deleg./layout revoked */
351 * Note: NF4BAD is not actually part of the protocol; it is just used
352 * internally by nfsd.
356 NF4REG
= 1, /* Regular File */
357 NF4DIR
= 2, /* Directory */
358 NF4BLK
= 3, /* Special File - block device */
359 NF4CHR
= 4, /* Special File - character device */
360 NF4LNK
= 5, /* Symbolic Link */
361 NF4SOCK
= 6, /* Special File - socket */
362 NF4FIFO
= 7, /* Special File - fifo */
363 NF4ATTRDIR
= 8, /* Attribute Directory */
364 NF4NAMEDATTR
= 9 /* Named Attribute */
367 enum open_claim_type4
{
368 NFS4_OPEN_CLAIM_NULL
= 0,
369 NFS4_OPEN_CLAIM_PREVIOUS
= 1,
370 NFS4_OPEN_CLAIM_DELEGATE_CUR
= 2,
371 NFS4_OPEN_CLAIM_DELEGATE_PREV
= 3
375 NFS4_OPEN_NOCREATE
= 0,
380 NFS4_CREATE_UNCHECKED
= 0,
381 NFS4_CREATE_GUARDED
= 1,
382 NFS4_CREATE_EXCLUSIVE
= 2,
384 * New to NFSv4.1. If session is persistent,
385 * GUARDED4 MUST be used. Otherwise, use
386 * EXCLUSIVE4_1 instead of EXCLUSIVE4.
388 NFS4_CREATE_EXCLUSIVE4_1
= 3
393 NFS4_LIMIT_BLOCKS
= 2
396 enum open_delegation_type4
{
397 NFS4_OPEN_DELEGATE_NONE
= 0,
398 NFS4_OPEN_DELEGATE_READ
= 1,
399 NFS4_OPEN_DELEGATE_WRITE
= 2
411 /* Mandatory Attributes */
412 #define FATTR4_WORD0_SUPPORTED_ATTRS (1UL << 0)
413 #define FATTR4_WORD0_TYPE (1UL << 1)
414 #define FATTR4_WORD0_FH_EXPIRE_TYPE (1UL << 2)
415 #define FATTR4_WORD0_CHANGE (1UL << 3)
416 #define FATTR4_WORD0_SIZE (1UL << 4)
417 #define FATTR4_WORD0_LINK_SUPPORT (1UL << 5)
418 #define FATTR4_WORD0_SYMLINK_SUPPORT (1UL << 6)
419 #define FATTR4_WORD0_NAMED_ATTR (1UL << 7)
420 #define FATTR4_WORD0_FSID (1UL << 8)
421 #define FATTR4_WORD0_UNIQUE_HANDLES (1UL << 9)
422 #define FATTR4_WORD0_LEASE_TIME (1UL << 10)
423 #define FATTR4_WORD0_RDATTR_ERROR (1UL << 11)
424 /* Mandatory in NFSv4.1 */
425 #define FATTR4_WORD2_SUPPATTR_EXCLCREAT (1UL << 11)
427 /* Recommended Attributes */
428 #define FATTR4_WORD0_ACL (1UL << 12)
429 #define FATTR4_WORD0_ACLSUPPORT (1UL << 13)
430 #define FATTR4_WORD0_ARCHIVE (1UL << 14)
431 #define FATTR4_WORD0_CANSETTIME (1UL << 15)
432 #define FATTR4_WORD0_CASE_INSENSITIVE (1UL << 16)
433 #define FATTR4_WORD0_CASE_PRESERVING (1UL << 17)
434 #define FATTR4_WORD0_CHOWN_RESTRICTED (1UL << 18)
435 #define FATTR4_WORD0_FILEHANDLE (1UL << 19)
436 #define FATTR4_WORD0_FILEID (1UL << 20)
437 #define FATTR4_WORD0_FILES_AVAIL (1UL << 21)
438 #define FATTR4_WORD0_FILES_FREE (1UL << 22)
439 #define FATTR4_WORD0_FILES_TOTAL (1UL << 23)
440 #define FATTR4_WORD0_FS_LOCATIONS (1UL << 24)
441 #define FATTR4_WORD0_HIDDEN (1UL << 25)
442 #define FATTR4_WORD0_HOMOGENEOUS (1UL << 26)
443 #define FATTR4_WORD0_MAXFILESIZE (1UL << 27)
444 #define FATTR4_WORD0_MAXLINK (1UL << 28)
445 #define FATTR4_WORD0_MAXNAME (1UL << 29)
446 #define FATTR4_WORD0_MAXREAD (1UL << 30)
447 #define FATTR4_WORD0_MAXWRITE (1UL << 31)
448 #define FATTR4_WORD1_MIMETYPE (1UL << 0)
449 #define FATTR4_WORD1_MODE (1UL << 1)
450 #define FATTR4_WORD1_NO_TRUNC (1UL << 2)
451 #define FATTR4_WORD1_NUMLINKS (1UL << 3)
452 #define FATTR4_WORD1_OWNER (1UL << 4)
453 #define FATTR4_WORD1_OWNER_GROUP (1UL << 5)
454 #define FATTR4_WORD1_QUOTA_HARD (1UL << 6)
455 #define FATTR4_WORD1_QUOTA_SOFT (1UL << 7)
456 #define FATTR4_WORD1_QUOTA_USED (1UL << 8)
457 #define FATTR4_WORD1_RAWDEV (1UL << 9)
458 #define FATTR4_WORD1_SPACE_AVAIL (1UL << 10)
459 #define FATTR4_WORD1_SPACE_FREE (1UL << 11)
460 #define FATTR4_WORD1_SPACE_TOTAL (1UL << 12)
461 #define FATTR4_WORD1_SPACE_USED (1UL << 13)
462 #define FATTR4_WORD1_SYSTEM (1UL << 14)
463 #define FATTR4_WORD1_TIME_ACCESS (1UL << 15)
464 #define FATTR4_WORD1_TIME_ACCESS_SET (1UL << 16)
465 #define FATTR4_WORD1_TIME_BACKUP (1UL << 17)
466 #define FATTR4_WORD1_TIME_CREATE (1UL << 18)
467 #define FATTR4_WORD1_TIME_DELTA (1UL << 19)
468 #define FATTR4_WORD1_TIME_METADATA (1UL << 20)
469 #define FATTR4_WORD1_TIME_MODIFY (1UL << 21)
470 #define FATTR4_WORD1_TIME_MODIFY_SET (1UL << 22)
471 #define FATTR4_WORD1_MOUNTED_ON_FILEID (1UL << 23)
473 #define NFSPROC4_NULL 0
474 #define NFSPROC4_COMPOUND 1
475 #define NFS4_VERSION 4
476 #define NFS4_MINOR_VERSION 0
478 #if defined(CONFIG_NFS_V4_1)
479 #define NFS4_MAX_MINOR_VERSION 1
481 #define NFS4_MAX_MINOR_VERSION 0
482 #endif /* CONFIG_NFS_V4_1 */
486 /* Index of predefined Linux client operations */
489 NFSPROC4_CLNT_NULL
= 0, /* Unused */
492 NFSPROC4_CLNT_COMMIT
,
494 NFSPROC4_CLNT_OPEN_CONFIRM
,
495 NFSPROC4_CLNT_OPEN_NOATTR
,
496 NFSPROC4_CLNT_OPEN_DOWNGRADE
,
498 NFSPROC4_CLNT_SETATTR
,
499 NFSPROC4_CLNT_FSINFO
,
501 NFSPROC4_CLNT_SETCLIENTID
,
502 NFSPROC4_CLNT_SETCLIENTID_CONFIRM
,
506 NFSPROC4_CLNT_ACCESS
,
507 NFSPROC4_CLNT_GETATTR
,
508 NFSPROC4_CLNT_LOOKUP
,
509 NFSPROC4_CLNT_LOOKUP_ROOT
,
510 NFSPROC4_CLNT_REMOVE
,
511 NFSPROC4_CLNT_RENAME
,
513 NFSPROC4_CLNT_SYMLINK
,
514 NFSPROC4_CLNT_CREATE
,
515 NFSPROC4_CLNT_PATHCONF
,
516 NFSPROC4_CLNT_STATFS
,
517 NFSPROC4_CLNT_READLINK
,
518 NFSPROC4_CLNT_READDIR
,
519 NFSPROC4_CLNT_SERVER_CAPS
,
520 NFSPROC4_CLNT_DELEGRETURN
,
521 NFSPROC4_CLNT_GETACL
,
522 NFSPROC4_CLNT_SETACL
,
523 NFSPROC4_CLNT_FS_LOCATIONS
,
526 NFSPROC4_CLNT_EXCHANGE_ID
,
527 NFSPROC4_CLNT_CREATE_SESSION
,
528 NFSPROC4_CLNT_DESTROY_SESSION
,
529 NFSPROC4_CLNT_SEQUENCE
,
530 NFSPROC4_CLNT_GET_LEASE_TIME
,
534 struct nfs4_sessionid
{
535 unsigned char data
[NFS4_MAX_SESSIONID_LEN
];
538 /* Create Session Flags */
539 #define SESSION4_PERSIST 0x001
540 #define SESSION4_BACK_CHAN 0x002
541 #define SESSION4_RDMA 0x004
543 enum state_protect_how4
{