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TOMOYO Linux Cross Reference
Linux/include/linux/nfs4.h

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  1 /*
  2  *  include/linux/nfs4.h
  3  *
  4  *  NFSv4 protocol definitions.
  5  *
  6  *  Copyright (c) 2002 The Regents of the University of Michigan.
  7  *  All rights reserved.
  8  *
  9  *  Kendrick Smith <kmsmith@umich.edu>
 10  *  Andy Adamson   <andros@umich.edu>
 11  */
 12 #ifndef _LINUX_NFS4_H
 13 #define _LINUX_NFS4_H
 14 
 15 #include <linux/list.h>
 16 #include <linux/uidgid.h>
 17 #include <uapi/linux/nfs4.h>
 18 
 19 enum nfs4_acl_whotype {
 20         NFS4_ACL_WHO_NAMED = 0,
 21         NFS4_ACL_WHO_OWNER,
 22         NFS4_ACL_WHO_GROUP,
 23         NFS4_ACL_WHO_EVERYONE,
 24 };
 25 
 26 struct nfs4_ace {
 27         uint32_t        type;
 28         uint32_t        flag;
 29         uint32_t        access_mask;
 30         int             whotype;
 31         union {
 32                 kuid_t  who_uid;
 33                 kgid_t  who_gid;
 34         };
 35 };
 36 
 37 struct nfs4_acl {
 38         uint32_t        naces;
 39         struct nfs4_ace aces[0];
 40 };
 41 
 42 #define NFS4_MAXLABELLEN        2048
 43 
 44 struct nfs4_label {
 45         uint32_t        lfs;
 46         uint32_t        pi;
 47         u32             len;
 48         char    *label;
 49 };
 50 
 51 typedef struct { char data[NFS4_VERIFIER_SIZE]; } nfs4_verifier;
 52 
 53 struct nfs4_stateid_struct {
 54         union {
 55                 char data[NFS4_STATEID_SIZE];
 56                 struct {
 57                         __be32 seqid;
 58                         char other[NFS4_STATEID_OTHER_SIZE];
 59                 } __attribute__ ((packed));
 60         };
 61 
 62         enum {
 63                 NFS4_INVALID_STATEID_TYPE = 0,
 64                 NFS4_SPECIAL_STATEID_TYPE,
 65                 NFS4_OPEN_STATEID_TYPE,
 66                 NFS4_LOCK_STATEID_TYPE,
 67                 NFS4_DELEGATION_STATEID_TYPE,
 68                 NFS4_LAYOUT_STATEID_TYPE,
 69                 NFS4_PNFS_DS_STATEID_TYPE,
 70                 NFS4_REVOKED_STATEID_TYPE,
 71         } type;
 72 };
 73 
 74 typedef struct nfs4_stateid_struct nfs4_stateid;
 75 
 76 enum nfs_opnum4 {
 77         OP_ACCESS = 3,
 78         OP_CLOSE = 4,
 79         OP_COMMIT = 5,
 80         OP_CREATE = 6,
 81         OP_DELEGPURGE = 7,
 82         OP_DELEGRETURN = 8,
 83         OP_GETATTR = 9,
 84         OP_GETFH = 10,
 85         OP_LINK = 11,
 86         OP_LOCK = 12,
 87         OP_LOCKT = 13,
 88         OP_LOCKU = 14,
 89         OP_LOOKUP = 15,
 90         OP_LOOKUPP = 16,
 91         OP_NVERIFY = 17,
 92         OP_OPEN = 18,
 93         OP_OPENATTR = 19,
 94         OP_OPEN_CONFIRM = 20,
 95         OP_OPEN_DOWNGRADE = 21,
 96         OP_PUTFH = 22,
 97         OP_PUTPUBFH = 23,
 98         OP_PUTROOTFH = 24,
 99         OP_READ = 25,
100         OP_READDIR = 26,
101         OP_READLINK = 27,
102         OP_REMOVE = 28,
103         OP_RENAME = 29,
104         OP_RENEW = 30,
105         OP_RESTOREFH = 31,
106         OP_SAVEFH = 32,
107         OP_SECINFO = 33,
108         OP_SETATTR = 34,
109         OP_SETCLIENTID = 35,
110         OP_SETCLIENTID_CONFIRM = 36,
111         OP_VERIFY = 37,
112         OP_WRITE = 38,
113         OP_RELEASE_LOCKOWNER = 39,
114 
115         /* nfs41 */
116         OP_BACKCHANNEL_CTL = 40,
117         OP_BIND_CONN_TO_SESSION = 41,
118         OP_EXCHANGE_ID = 42,
119         OP_CREATE_SESSION = 43,
120         OP_DESTROY_SESSION = 44,
121         OP_FREE_STATEID = 45,
122         OP_GET_DIR_DELEGATION = 46,
123         OP_GETDEVICEINFO = 47,
124         OP_GETDEVICELIST = 48,
125         OP_LAYOUTCOMMIT = 49,
126         OP_LAYOUTGET = 50,
127         OP_LAYOUTRETURN = 51,
128         OP_SECINFO_NO_NAME = 52,
129         OP_SEQUENCE = 53,
130         OP_SET_SSV = 54,
131         OP_TEST_STATEID = 55,
132         OP_WANT_DELEGATION = 56,
133         OP_DESTROY_CLIENTID = 57,
134         OP_RECLAIM_COMPLETE = 58,
135 
136         /* nfs42 */
137         OP_ALLOCATE = 59,
138         OP_COPY = 60,
139         OP_COPY_NOTIFY = 61,
140         OP_DEALLOCATE = 62,
141         OP_IO_ADVISE = 63,
142         OP_LAYOUTERROR = 64,
143         OP_LAYOUTSTATS = 65,
144         OP_OFFLOAD_CANCEL = 66,
145         OP_OFFLOAD_STATUS = 67,
146         OP_READ_PLUS = 68,
147         OP_SEEK = 69,
148         OP_WRITE_SAME = 70,
149         OP_CLONE = 71,
150 
151         OP_ILLEGAL = 10044,
152 };
153 
154 /*Defining first and last NFS4 operations implemented.
155 Needs to be updated if more operations are defined in future.*/
156 
157 #define FIRST_NFS4_OP   OP_ACCESS
158 #define LAST_NFS40_OP   OP_RELEASE_LOCKOWNER
159 #define LAST_NFS41_OP   OP_RECLAIM_COMPLETE
160 #define LAST_NFS42_OP   OP_CLONE
161 #define LAST_NFS4_OP    LAST_NFS42_OP
162 
163 enum nfsstat4 {
164         NFS4_OK = 0,
165         NFS4ERR_PERM = 1,
166         NFS4ERR_NOENT = 2,
167         NFS4ERR_IO = 5,
168         NFS4ERR_NXIO = 6,
169         NFS4ERR_ACCESS = 13,
170         NFS4ERR_EXIST = 17,
171         NFS4ERR_XDEV = 18,
172         /* Unused/reserved 19 */
173         NFS4ERR_NOTDIR = 20,
174         NFS4ERR_ISDIR = 21,
175         NFS4ERR_INVAL = 22,
176         NFS4ERR_FBIG = 27,
177         NFS4ERR_NOSPC = 28,
178         NFS4ERR_ROFS = 30,
179         NFS4ERR_MLINK = 31,
180         NFS4ERR_NAMETOOLONG = 63,
181         NFS4ERR_NOTEMPTY = 66,
182         NFS4ERR_DQUOT = 69,
183         NFS4ERR_STALE = 70,
184         NFS4ERR_BADHANDLE = 10001,
185         NFS4ERR_BAD_COOKIE = 10003,
186         NFS4ERR_NOTSUPP = 10004,
187         NFS4ERR_TOOSMALL = 10005,
188         NFS4ERR_SERVERFAULT = 10006,
189         NFS4ERR_BADTYPE = 10007,
190         NFS4ERR_DELAY = 10008,
191         NFS4ERR_SAME = 10009,
192         NFS4ERR_DENIED = 10010,
193         NFS4ERR_EXPIRED = 10011,
194         NFS4ERR_LOCKED = 10012,
195         NFS4ERR_GRACE = 10013,
196         NFS4ERR_FHEXPIRED = 10014,
197         NFS4ERR_SHARE_DENIED = 10015,
198         NFS4ERR_WRONGSEC = 10016,
199         NFS4ERR_CLID_INUSE = 10017,
200         NFS4ERR_RESOURCE = 10018,
201         NFS4ERR_MOVED = 10019,
202         NFS4ERR_NOFILEHANDLE = 10020,
203         NFS4ERR_MINOR_VERS_MISMATCH = 10021,
204         NFS4ERR_STALE_CLIENTID = 10022,
205         NFS4ERR_STALE_STATEID = 10023,
206         NFS4ERR_OLD_STATEID = 10024,
207         NFS4ERR_BAD_STATEID = 10025,
208         NFS4ERR_BAD_SEQID = 10026,
209         NFS4ERR_NOT_SAME = 10027,
210         NFS4ERR_LOCK_RANGE = 10028,
211         NFS4ERR_SYMLINK = 10029,
212         NFS4ERR_RESTOREFH = 10030,
213         NFS4ERR_LEASE_MOVED = 10031,
214         NFS4ERR_ATTRNOTSUPP = 10032,
215         NFS4ERR_NO_GRACE = 10033,
216         NFS4ERR_RECLAIM_BAD = 10034,
217         NFS4ERR_RECLAIM_CONFLICT = 10035,
218         NFS4ERR_BADXDR = 10036,
219         NFS4ERR_LOCKS_HELD = 10037,
220         NFS4ERR_OPENMODE = 10038,
221         NFS4ERR_BADOWNER = 10039,
222         NFS4ERR_BADCHAR = 10040,
223         NFS4ERR_BADNAME = 10041,
224         NFS4ERR_BAD_RANGE = 10042,
225         NFS4ERR_LOCK_NOTSUPP = 10043,
226         NFS4ERR_OP_ILLEGAL = 10044,
227         NFS4ERR_DEADLOCK = 10045,
228         NFS4ERR_FILE_OPEN = 10046,
229         NFS4ERR_ADMIN_REVOKED = 10047,
230         NFS4ERR_CB_PATH_DOWN = 10048,
231 
232         /* nfs41 */
233         NFS4ERR_BADIOMODE       = 10049,
234         NFS4ERR_BADLAYOUT       = 10050,
235         NFS4ERR_BAD_SESSION_DIGEST = 10051,
236         NFS4ERR_BADSESSION      = 10052,
237         NFS4ERR_BADSLOT         = 10053,
238         NFS4ERR_COMPLETE_ALREADY = 10054,
239         NFS4ERR_CONN_NOT_BOUND_TO_SESSION = 10055,
240         NFS4ERR_DELEG_ALREADY_WANTED = 10056,
241         NFS4ERR_BACK_CHAN_BUSY  = 10057,        /* backchan reqs outstanding */
242         NFS4ERR_LAYOUTTRYLATER  = 10058,
243         NFS4ERR_LAYOUTUNAVAILABLE = 10059,
244         NFS4ERR_NOMATCHING_LAYOUT = 10060,
245         NFS4ERR_RECALLCONFLICT  = 10061,
246         NFS4ERR_UNKNOWN_LAYOUTTYPE = 10062,
247         NFS4ERR_SEQ_MISORDERED = 10063,         /* unexpected seq.id in req */
248         NFS4ERR_SEQUENCE_POS    = 10064,        /* [CB_]SEQ. op not 1st op */
249         NFS4ERR_REQ_TOO_BIG     = 10065,        /* request too big */
250         NFS4ERR_REP_TOO_BIG     = 10066,        /* reply too big */
251         NFS4ERR_REP_TOO_BIG_TO_CACHE = 10067,   /* rep. not all cached */
252         NFS4ERR_RETRY_UNCACHED_REP = 10068,     /* retry & rep. uncached */
253         NFS4ERR_UNSAFE_COMPOUND = 10069,        /* retry/recovery too hard */
254         NFS4ERR_TOO_MANY_OPS    = 10070,        /* too many ops in [CB_]COMP */
255         NFS4ERR_OP_NOT_IN_SESSION = 10071,      /* op needs [CB_]SEQ. op */
256         NFS4ERR_HASH_ALG_UNSUPP = 10072,        /* hash alg. not supp. */
257                                                 /* Error 10073 is unused. */
258         NFS4ERR_CLIENTID_BUSY   = 10074,        /* clientid has state */
259         NFS4ERR_PNFS_IO_HOLE    = 10075,        /* IO to _SPARSE file hole */
260         NFS4ERR_SEQ_FALSE_RETRY = 10076,        /* retry not original */
261         NFS4ERR_BAD_HIGH_SLOT   = 10077,        /* sequence arg bad */
262         NFS4ERR_DEADSESSION     = 10078,        /* persistent session dead */
263         NFS4ERR_ENCR_ALG_UNSUPP = 10079,        /* SSV alg mismatch */
264         NFS4ERR_PNFS_NO_LAYOUT  = 10080,        /* direct I/O with no layout */
265         NFS4ERR_NOT_ONLY_OP     = 10081,        /* bad compound */
266         NFS4ERR_WRONG_CRED      = 10082,        /* permissions:state change */
267         NFS4ERR_WRONG_TYPE      = 10083,        /* current operation mismatch */
268         NFS4ERR_DIRDELEG_UNAVAIL = 10084,       /* no directory delegation */
269         NFS4ERR_REJECT_DELEG    = 10085,        /* on callback */
270         NFS4ERR_RETURNCONFLICT  = 10086,        /* outstanding layoutreturn */
271         NFS4ERR_DELEG_REVOKED   = 10087,        /* deleg./layout revoked */
272 
273         /* nfs42 */
274         NFS4ERR_PARTNER_NOTSUPP = 10088,
275         NFS4ERR_PARTNER_NO_AUTH = 10089,
276         NFS4ERR_UNION_NOTSUPP = 10090,
277         NFS4ERR_OFFLOAD_DENIED = 10091,
278         NFS4ERR_WRONG_LFS = 10092,
279         NFS4ERR_BADLABEL = 10093,
280         NFS4ERR_OFFLOAD_NO_REQS = 10094,
281 };
282 
283 static inline bool seqid_mutating_err(u32 err)
284 {
285         /* See RFC 7530, section 9.1.7 */
286         switch (err) {
287         case NFS4ERR_STALE_CLIENTID:
288         case NFS4ERR_STALE_STATEID:
289         case NFS4ERR_BAD_STATEID:
290         case NFS4ERR_BAD_SEQID:
291         case NFS4ERR_BADXDR:
292         case NFS4ERR_RESOURCE:
293         case NFS4ERR_NOFILEHANDLE:
294         case NFS4ERR_MOVED:
295                 return false;
296         };
297         return true;
298 }
299 
300 /*
301  * Note: NF4BAD is not actually part of the protocol; it is just used
302  * internally by nfsd.
303  */
304 enum nfs_ftype4 {
305         NF4BAD          = 0,
306         NF4REG          = 1,    /* Regular File */
307         NF4DIR          = 2,    /* Directory */
308         NF4BLK          = 3,    /* Special File - block device */
309         NF4CHR          = 4,    /* Special File - character device */
310         NF4LNK          = 5,    /* Symbolic Link */
311         NF4SOCK         = 6,    /* Special File - socket */
312         NF4FIFO         = 7,    /* Special File - fifo */
313         NF4ATTRDIR      = 8,    /* Attribute Directory */
314         NF4NAMEDATTR    = 9     /* Named Attribute */
315 };
316 
317 enum open_claim_type4 {
318         NFS4_OPEN_CLAIM_NULL = 0,
319         NFS4_OPEN_CLAIM_PREVIOUS = 1,
320         NFS4_OPEN_CLAIM_DELEGATE_CUR = 2,
321         NFS4_OPEN_CLAIM_DELEGATE_PREV = 3,
322         NFS4_OPEN_CLAIM_FH = 4, /* 4.1 */
323         NFS4_OPEN_CLAIM_DELEG_CUR_FH = 5, /* 4.1 */
324         NFS4_OPEN_CLAIM_DELEG_PREV_FH = 6, /* 4.1 */
325 };
326 
327 enum opentype4 {
328         NFS4_OPEN_NOCREATE = 0,
329         NFS4_OPEN_CREATE = 1
330 };
331 
332 enum createmode4 {
333         NFS4_CREATE_UNCHECKED = 0,
334         NFS4_CREATE_GUARDED = 1,
335         NFS4_CREATE_EXCLUSIVE = 2,
336         /*
337          * New to NFSv4.1. If session is persistent,
338          * GUARDED4 MUST be used. Otherwise, use
339          * EXCLUSIVE4_1 instead of EXCLUSIVE4.
340          */
341         NFS4_CREATE_EXCLUSIVE4_1 = 3
342 };
343 
344 enum limit_by4 {
345         NFS4_LIMIT_SIZE = 1,
346         NFS4_LIMIT_BLOCKS = 2
347 };
348 
349 enum open_delegation_type4 {
350         NFS4_OPEN_DELEGATE_NONE = 0,
351         NFS4_OPEN_DELEGATE_READ = 1,
352         NFS4_OPEN_DELEGATE_WRITE = 2,
353         NFS4_OPEN_DELEGATE_NONE_EXT = 3, /* 4.1 */
354 };
355 
356 enum why_no_delegation4 { /* new to v4.1 */
357         WND4_NOT_WANTED = 0,
358         WND4_CONTENTION = 1,
359         WND4_RESOURCE = 2,
360         WND4_NOT_SUPP_FTYPE = 3,
361         WND4_WRITE_DELEG_NOT_SUPP_FTYPE = 4,
362         WND4_NOT_SUPP_UPGRADE = 5,
363         WND4_NOT_SUPP_DOWNGRADE = 6,
364         WND4_CANCELLED = 7,
365         WND4_IS_DIR = 8,
366 };
367 
368 enum lock_type4 {
369         NFS4_UNLOCK_LT = 0,
370         NFS4_READ_LT = 1,
371         NFS4_WRITE_LT = 2,
372         NFS4_READW_LT = 3,
373         NFS4_WRITEW_LT = 4
374 };
375 
376 
377 /* Mandatory Attributes */
378 #define FATTR4_WORD0_SUPPORTED_ATTRS    (1UL << 0)
379 #define FATTR4_WORD0_TYPE               (1UL << 1)
380 #define FATTR4_WORD0_FH_EXPIRE_TYPE     (1UL << 2)
381 #define FATTR4_WORD0_CHANGE             (1UL << 3)
382 #define FATTR4_WORD0_SIZE               (1UL << 4)
383 #define FATTR4_WORD0_LINK_SUPPORT       (1UL << 5)
384 #define FATTR4_WORD0_SYMLINK_SUPPORT    (1UL << 6)
385 #define FATTR4_WORD0_NAMED_ATTR         (1UL << 7)
386 #define FATTR4_WORD0_FSID               (1UL << 8)
387 #define FATTR4_WORD0_UNIQUE_HANDLES     (1UL << 9)
388 #define FATTR4_WORD0_LEASE_TIME         (1UL << 10)
389 #define FATTR4_WORD0_RDATTR_ERROR       (1UL << 11)
390 /* Mandatory in NFSv4.1 */
391 #define FATTR4_WORD2_SUPPATTR_EXCLCREAT (1UL << 11)
392 
393 /* Recommended Attributes */
394 #define FATTR4_WORD0_ACL                (1UL << 12)
395 #define FATTR4_WORD0_ACLSUPPORT         (1UL << 13)
396 #define FATTR4_WORD0_ARCHIVE            (1UL << 14)
397 #define FATTR4_WORD0_CANSETTIME         (1UL << 15)
398 #define FATTR4_WORD0_CASE_INSENSITIVE   (1UL << 16)
399 #define FATTR4_WORD0_CASE_PRESERVING    (1UL << 17)
400 #define FATTR4_WORD0_CHOWN_RESTRICTED   (1UL << 18)
401 #define FATTR4_WORD0_FILEHANDLE         (1UL << 19)
402 #define FATTR4_WORD0_FILEID             (1UL << 20)
403 #define FATTR4_WORD0_FILES_AVAIL        (1UL << 21)
404 #define FATTR4_WORD0_FILES_FREE         (1UL << 22)
405 #define FATTR4_WORD0_FILES_TOTAL        (1UL << 23)
406 #define FATTR4_WORD0_FS_LOCATIONS       (1UL << 24)
407 #define FATTR4_WORD0_HIDDEN             (1UL << 25)
408 #define FATTR4_WORD0_HOMOGENEOUS        (1UL << 26)
409 #define FATTR4_WORD0_MAXFILESIZE        (1UL << 27)
410 #define FATTR4_WORD0_MAXLINK            (1UL << 28)
411 #define FATTR4_WORD0_MAXNAME            (1UL << 29)
412 #define FATTR4_WORD0_MAXREAD            (1UL << 30)
413 #define FATTR4_WORD0_MAXWRITE           (1UL << 31)
414 #define FATTR4_WORD1_MIMETYPE           (1UL << 0)
415 #define FATTR4_WORD1_MODE               (1UL << 1)
416 #define FATTR4_WORD1_NO_TRUNC           (1UL << 2)
417 #define FATTR4_WORD1_NUMLINKS           (1UL << 3)
418 #define FATTR4_WORD1_OWNER              (1UL << 4)
419 #define FATTR4_WORD1_OWNER_GROUP        (1UL << 5)
420 #define FATTR4_WORD1_QUOTA_HARD         (1UL << 6)
421 #define FATTR4_WORD1_QUOTA_SOFT         (1UL << 7)
422 #define FATTR4_WORD1_QUOTA_USED         (1UL << 8)
423 #define FATTR4_WORD1_RAWDEV             (1UL << 9)
424 #define FATTR4_WORD1_SPACE_AVAIL        (1UL << 10)
425 #define FATTR4_WORD1_SPACE_FREE         (1UL << 11)
426 #define FATTR4_WORD1_SPACE_TOTAL        (1UL << 12)
427 #define FATTR4_WORD1_SPACE_USED         (1UL << 13)
428 #define FATTR4_WORD1_SYSTEM             (1UL << 14)
429 #define FATTR4_WORD1_TIME_ACCESS        (1UL << 15)
430 #define FATTR4_WORD1_TIME_ACCESS_SET    (1UL << 16)
431 #define FATTR4_WORD1_TIME_BACKUP        (1UL << 17)
432 #define FATTR4_WORD1_TIME_CREATE        (1UL << 18)
433 #define FATTR4_WORD1_TIME_DELTA         (1UL << 19)
434 #define FATTR4_WORD1_TIME_METADATA      (1UL << 20)
435 #define FATTR4_WORD1_TIME_MODIFY        (1UL << 21)
436 #define FATTR4_WORD1_TIME_MODIFY_SET    (1UL << 22)
437 #define FATTR4_WORD1_MOUNTED_ON_FILEID  (1UL << 23)
438 #define FATTR4_WORD1_FS_LAYOUT_TYPES    (1UL << 30)
439 #define FATTR4_WORD2_LAYOUT_TYPES       (1UL << 0)
440 #define FATTR4_WORD2_LAYOUT_BLKSIZE     (1UL << 1)
441 #define FATTR4_WORD2_MDSTHRESHOLD       (1UL << 4)
442 #define FATTR4_WORD2_CLONE_BLKSIZE      (1UL << 13)
443 #define FATTR4_WORD2_SECURITY_LABEL     (1UL << 16)
444 #define FATTR4_WORD2_MODE_UMASK         (1UL << 17)
445 
446 /* MDS threshold bitmap bits */
447 #define THRESHOLD_RD                    (1UL << 0)
448 #define THRESHOLD_WR                    (1UL << 1)
449 #define THRESHOLD_RD_IO                 (1UL << 2)
450 #define THRESHOLD_WR_IO                 (1UL << 3)
451 
452 #define NFSPROC4_NULL 0
453 #define NFSPROC4_COMPOUND 1
454 #define NFS4_VERSION 4
455 #define NFS4_MINOR_VERSION 0
456 
457 #define NFS4_DEBUG 1
458 
459 /* Index of predefined Linux client operations */
460 
461 enum {
462         NFSPROC4_CLNT_NULL = 0,         /* Unused */
463         NFSPROC4_CLNT_READ,
464         NFSPROC4_CLNT_WRITE,
465         NFSPROC4_CLNT_COMMIT,
466         NFSPROC4_CLNT_OPEN,
467         NFSPROC4_CLNT_OPEN_CONFIRM,
468         NFSPROC4_CLNT_OPEN_NOATTR,
469         NFSPROC4_CLNT_OPEN_DOWNGRADE,
470         NFSPROC4_CLNT_CLOSE,
471         NFSPROC4_CLNT_SETATTR,
472         NFSPROC4_CLNT_FSINFO,
473         NFSPROC4_CLNT_RENEW,
474         NFSPROC4_CLNT_SETCLIENTID,
475         NFSPROC4_CLNT_SETCLIENTID_CONFIRM,
476         NFSPROC4_CLNT_LOCK,
477         NFSPROC4_CLNT_LOCKT,
478         NFSPROC4_CLNT_LOCKU,
479         NFSPROC4_CLNT_ACCESS,
480         NFSPROC4_CLNT_GETATTR,
481         NFSPROC4_CLNT_LOOKUP,
482         NFSPROC4_CLNT_LOOKUPP,
483         NFSPROC4_CLNT_LOOKUP_ROOT,
484         NFSPROC4_CLNT_REMOVE,
485         NFSPROC4_CLNT_RENAME,
486         NFSPROC4_CLNT_LINK,
487         NFSPROC4_CLNT_SYMLINK,
488         NFSPROC4_CLNT_CREATE,
489         NFSPROC4_CLNT_PATHCONF,
490         NFSPROC4_CLNT_STATFS,
491         NFSPROC4_CLNT_READLINK,
492         NFSPROC4_CLNT_READDIR,
493         NFSPROC4_CLNT_SERVER_CAPS,
494         NFSPROC4_CLNT_DELEGRETURN,
495         NFSPROC4_CLNT_GETACL,
496         NFSPROC4_CLNT_SETACL,
497         NFSPROC4_CLNT_FS_LOCATIONS,
498         NFSPROC4_CLNT_RELEASE_LOCKOWNER,
499         NFSPROC4_CLNT_SECINFO,
500         NFSPROC4_CLNT_FSID_PRESENT,
501 
502         /* nfs41 */
503         NFSPROC4_CLNT_EXCHANGE_ID,
504         NFSPROC4_CLNT_CREATE_SESSION,
505         NFSPROC4_CLNT_DESTROY_SESSION,
506         NFSPROC4_CLNT_SEQUENCE,
507         NFSPROC4_CLNT_GET_LEASE_TIME,
508         NFSPROC4_CLNT_RECLAIM_COMPLETE,
509         NFSPROC4_CLNT_LAYOUTGET,
510         NFSPROC4_CLNT_GETDEVICEINFO,
511         NFSPROC4_CLNT_LAYOUTCOMMIT,
512         NFSPROC4_CLNT_LAYOUTRETURN,
513         NFSPROC4_CLNT_SECINFO_NO_NAME,
514         NFSPROC4_CLNT_TEST_STATEID,
515         NFSPROC4_CLNT_FREE_STATEID,
516         NFSPROC4_CLNT_GETDEVICELIST,
517         NFSPROC4_CLNT_BIND_CONN_TO_SESSION,
518         NFSPROC4_CLNT_DESTROY_CLIENTID,
519 
520         /* nfs42 */
521         NFSPROC4_CLNT_SEEK,
522         NFSPROC4_CLNT_ALLOCATE,
523         NFSPROC4_CLNT_DEALLOCATE,
524         NFSPROC4_CLNT_LAYOUTSTATS,
525         NFSPROC4_CLNT_CLONE,
526         NFSPROC4_CLNT_COPY,
527 };
528 
529 /* nfs41 types */
530 struct nfs4_sessionid {
531         unsigned char data[NFS4_MAX_SESSIONID_LEN];
532 };
533 
534 /* Create Session Flags */
535 #define SESSION4_PERSIST        0x001
536 #define SESSION4_BACK_CHAN      0x002
537 #define SESSION4_RDMA           0x004
538 
539 #define SESSION4_FLAG_MASK_A    0x007
540 
541 enum state_protect_how4 {
542         SP4_NONE        = 0,
543         SP4_MACH_CRED   = 1,
544         SP4_SSV         = 2
545 };
546 
547 enum pnfs_layouttype {
548         LAYOUT_NFSV4_1_FILES  = 1,
549         LAYOUT_OSD2_OBJECTS = 2,
550         LAYOUT_BLOCK_VOLUME = 3,
551         LAYOUT_FLEX_FILES = 4,
552         LAYOUT_SCSI = 5,
553         LAYOUT_TYPE_MAX
554 };
555 
556 /* used for both layout return and recall */
557 enum pnfs_layoutreturn_type {
558         RETURN_FILE = 1,
559         RETURN_FSID = 2,
560         RETURN_ALL  = 3
561 };
562 
563 enum pnfs_iomode {
564         IOMODE_READ = 1,
565         IOMODE_RW = 2,
566         IOMODE_ANY = 3,
567 };
568 
569 enum pnfs_notify_deviceid_type4 {
570         NOTIFY_DEVICEID4_CHANGE = 1 << 1,
571         NOTIFY_DEVICEID4_DELETE = 1 << 2,
572 };
573 
574 enum pnfs_block_volume_type {
575         PNFS_BLOCK_VOLUME_SIMPLE        = 0,
576         PNFS_BLOCK_VOLUME_SLICE         = 1,
577         PNFS_BLOCK_VOLUME_CONCAT        = 2,
578         PNFS_BLOCK_VOLUME_STRIPE        = 3,
579         PNFS_BLOCK_VOLUME_SCSI          = 4,
580 };
581 
582 enum pnfs_block_extent_state {
583         PNFS_BLOCK_READWRITE_DATA       = 0,
584         PNFS_BLOCK_READ_DATA            = 1,
585         PNFS_BLOCK_INVALID_DATA         = 2,
586         PNFS_BLOCK_NONE_DATA            = 3,
587 };
588 
589 /* on the wire size of a block layout extent */
590 #define PNFS_BLOCK_EXTENT_SIZE \
591         (7 * sizeof(__be32) + NFS4_DEVICEID4_SIZE)
592 
593 /* on the wire size of a scsi commit range */
594 #define PNFS_SCSI_RANGE_SIZE \
595         (4 * sizeof(__be32))
596 
597 enum scsi_code_set {
598         PS_CODE_SET_BINARY      = 1,
599         PS_CODE_SET_ASCII       = 2,
600         PS_CODE_SET_UTF8        = 3
601 };
602 
603 enum scsi_designator_type {
604         PS_DESIGNATOR_T10       = 1,
605         PS_DESIGNATOR_EUI64     = 2,
606         PS_DESIGNATOR_NAA       = 3,
607         PS_DESIGNATOR_NAME      = 8
608 };
609 
610 #define NFL4_UFLG_MASK                  0x0000003F
611 #define NFL4_UFLG_DENSE                 0x00000001
612 #define NFL4_UFLG_COMMIT_THRU_MDS       0x00000002
613 #define NFL4_UFLG_STRIPE_UNIT_SIZE_MASK 0xFFFFFFC0
614 
615 /* Encoded in the loh_body field of type layouthint4 */
616 enum filelayout_hint_care4 {
617         NFLH4_CARE_DENSE                = NFL4_UFLG_DENSE,
618         NFLH4_CARE_COMMIT_THRU_MDS      = NFL4_UFLG_COMMIT_THRU_MDS,
619         NFLH4_CARE_STRIPE_UNIT_SIZE     = 0x00000040,
620         NFLH4_CARE_STRIPE_COUNT         = 0x00000080
621 };
622 
623 #define NFS4_DEVICEID4_SIZE 16
624 
625 struct nfs4_deviceid {
626         char data[NFS4_DEVICEID4_SIZE];
627 };
628 
629 enum data_content4 {
630         NFS4_CONTENT_DATA               = 0,
631         NFS4_CONTENT_HOLE               = 1,
632 };
633 
634 enum pnfs_update_layout_reason {
635         PNFS_UPDATE_LAYOUT_UNKNOWN = 0,
636         PNFS_UPDATE_LAYOUT_NO_PNFS,
637         PNFS_UPDATE_LAYOUT_RD_ZEROLEN,
638         PNFS_UPDATE_LAYOUT_MDSTHRESH,
639         PNFS_UPDATE_LAYOUT_NOMEM,
640         PNFS_UPDATE_LAYOUT_BULK_RECALL,
641         PNFS_UPDATE_LAYOUT_IO_TEST_FAIL,
642         PNFS_UPDATE_LAYOUT_FOUND_CACHED,
643         PNFS_UPDATE_LAYOUT_RETURN,
644         PNFS_UPDATE_LAYOUT_RETRY,
645         PNFS_UPDATE_LAYOUT_BLOCKED,
646         PNFS_UPDATE_LAYOUT_INVALID_OPEN,
647         PNFS_UPDATE_LAYOUT_SEND_LAYOUTGET,
648 };
649 
650 #define NFS4_OP_MAP_NUM_LONGS                                   \
651         DIV_ROUND_UP(LAST_NFS4_OP, 8 * sizeof(unsigned long))
652 #define NFS4_OP_MAP_NUM_WORDS \
653         (NFS4_OP_MAP_NUM_LONGS * sizeof(unsigned long) / sizeof(u32))
654 struct nfs4_op_map {
655         union {
656                 unsigned long longs[NFS4_OP_MAP_NUM_LONGS];
657                 u32 words[NFS4_OP_MAP_NUM_WORDS];
658         } u;
659 };
660 
661 #endif
662 

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