include/linux/nfs4.h

   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 struct nfs4_ace {
  20         uint32_t        type;
  21         uint32_t        flag;
  22         uint32_t        access_mask;
  23         int             whotype;
  24         union {
  25                 kuid_t  who_uid;
  26                 kgid_t  who_gid;
  27         };
  28 };
  29
  30 struct nfs4_acl {
  31         uint32_t        naces;
  32         struct nfs4_ace aces[0];
  33 };
  34
  35 typedef struct { char data[NFS4_VERIFIER_SIZE]; } nfs4_verifier;
  36
  37 struct nfs_stateid4 {
  38         __be32 seqid;
  39         char other[NFS4_STATEID_OTHER_SIZE];
  40 } __attribute__ ((packed));
  41
  42 typedef struct nfs_stateid4 nfs4_stateid;
  43
  44 enum nfs_opnum4 {
  45         OP_ACCESS = 3,
  46         OP_CLOSE = 4,
  47         OP_COMMIT = 5,
  48         OP_CREATE = 6,
  49         OP_DELEGPURGE = 7,
  50         OP_DELEGRETURN = 8,
  51         OP_GETATTR = 9,
  52         OP_GETFH = 10,
  53         OP_LINK = 11,
  54         OP_LOCK = 12,
  55         OP_LOCKT = 13,
  56         OP_LOCKU = 14,
  57         OP_LOOKUP = 15,
  58         OP_LOOKUPP = 16,
  59         OP_NVERIFY = 17,
  60         OP_OPEN = 18,
  61         OP_OPENATTR = 19,
  62         OP_OPEN_CONFIRM = 20,
  63         OP_OPEN_DOWNGRADE = 21,
  64         OP_PUTFH = 22,
  65         OP_PUTPUBFH = 23,
  66         OP_PUTROOTFH = 24,
  67         OP_READ = 25,
  68         OP_READDIR = 26,
  69         OP_READLINK = 27,
  70         OP_REMOVE = 28,
  71         OP_RENAME = 29,
  72         OP_RENEW = 30,
  73         OP_RESTOREFH = 31,
  74         OP_SAVEFH = 32,
  75         OP_SECINFO = 33,
  76         OP_SETATTR = 34,
  77         OP_SETCLIENTID = 35,
  78         OP_SETCLIENTID_CONFIRM = 36,
  79         OP_VERIFY = 37,
  80         OP_WRITE = 38,
  81         OP_RELEASE_LOCKOWNER = 39,
  82
  83         /* nfs41 */
  84         OP_BACKCHANNEL_CTL = 40,
  85         OP_BIND_CONN_TO_SESSION = 41,
  86         OP_EXCHANGE_ID = 42,
  87         OP_CREATE_SESSION = 43,
  88         OP_DESTROY_SESSION = 44,
  89         OP_FREE_STATEID = 45,
  90         OP_GET_DIR_DELEGATION = 46,
  91         OP_GETDEVICEINFO = 47,
  92         OP_GETDEVICELIST = 48,
  93         OP_LAYOUTCOMMIT = 49,
  94         OP_LAYOUTGET = 50,
  95         OP_LAYOUTRETURN = 51,
  96         OP_SECINFO_NO_NAME = 52,
  97         OP_SEQUENCE = 53,
  98         OP_SET_SSV = 54,
  99         OP_TEST_STATEID = 55,
 100         OP_WANT_DELEGATION = 56,
 101         OP_DESTROY_CLIENTID = 57,
 102         OP_RECLAIM_COMPLETE = 58,
 103
 104         OP_ILLEGAL = 10044,
 105 };
 106
 107 /*Defining first and last NFS4 operations implemented.
 108 Needs to be updated if more operations are defined in future.*/
 109
 110 #define FIRST_NFS4_OP   OP_ACCESS
 111 #define LAST_NFS4_OP    OP_RECLAIM_COMPLETE
 112
 113 enum nfsstat4 {
 114         NFS4_OK = 0,
 115         NFS4ERR_PERM = 1,
 116         NFS4ERR_NOENT = 2,
 117         NFS4ERR_IO = 5,
 118         NFS4ERR_NXIO = 6,
 119         NFS4ERR_ACCESS = 13,
 120         NFS4ERR_EXIST = 17,
 121         NFS4ERR_XDEV = 18,
 122         /* Unused/reserved 19 */
 123         NFS4ERR_NOTDIR = 20,
 124         NFS4ERR_ISDIR = 21,
 125         NFS4ERR_INVAL = 22,
 126         NFS4ERR_FBIG = 27,
 127         NFS4ERR_NOSPC = 28,
 128         NFS4ERR_ROFS = 30,
 129         NFS4ERR_MLINK = 31,
 130         NFS4ERR_NAMETOOLONG = 63,
 131         NFS4ERR_NOTEMPTY = 66,
 132         NFS4ERR_DQUOT = 69,
 133         NFS4ERR_STALE = 70,
 134         NFS4ERR_BADHANDLE = 10001,
 135         NFS4ERR_BAD_COOKIE = 10003,
 136         NFS4ERR_NOTSUPP = 10004,
 137         NFS4ERR_TOOSMALL = 10005,
 138         NFS4ERR_SERVERFAULT = 10006,
 139         NFS4ERR_BADTYPE = 10007,
 140         NFS4ERR_DELAY = 10008,
 141         NFS4ERR_SAME = 10009,
 142         NFS4ERR_DENIED = 10010,
 143         NFS4ERR_EXPIRED = 10011,
 144         NFS4ERR_LOCKED = 10012,
 145         NFS4ERR_GRACE = 10013,
 146         NFS4ERR_FHEXPIRED = 10014,
 147         NFS4ERR_SHARE_DENIED = 10015,
 148         NFS4ERR_WRONGSEC = 10016,
 149         NFS4ERR_CLID_INUSE = 10017,
 150         NFS4ERR_RESOURCE = 10018,
 151         NFS4ERR_MOVED = 10019,
 152         NFS4ERR_NOFILEHANDLE = 10020,
 153         NFS4ERR_MINOR_VERS_MISMATCH = 10021,
 154         NFS4ERR_STALE_CLIENTID = 10022,
 155         NFS4ERR_STALE_STATEID = 10023,
 156         NFS4ERR_OLD_STATEID = 10024,
 157         NFS4ERR_BAD_STATEID = 10025,
 158         NFS4ERR_BAD_SEQID = 10026,
 159         NFS4ERR_NOT_SAME = 10027,
 160         NFS4ERR_LOCK_RANGE = 10028,
 161         NFS4ERR_SYMLINK = 10029,
 162         NFS4ERR_RESTOREFH = 10030,
 163         NFS4ERR_LEASE_MOVED = 10031,
 164         NFS4ERR_ATTRNOTSUPP = 10032,
 165         NFS4ERR_NO_GRACE = 10033,
 166         NFS4ERR_RECLAIM_BAD = 10034,
 167         NFS4ERR_RECLAIM_CONFLICT = 10035,
 168         NFS4ERR_BADXDR = 10036,
 169         NFS4ERR_LOCKS_HELD = 10037,
 170         NFS4ERR_OPENMODE = 10038,
 171         NFS4ERR_BADOWNER = 10039,
 172         NFS4ERR_BADCHAR = 10040,
 173         NFS4ERR_BADNAME = 10041,
 174         NFS4ERR_BAD_RANGE = 10042,
 175         NFS4ERR_LOCK_NOTSUPP = 10043,
 176         NFS4ERR_OP_ILLEGAL = 10044,
 177         NFS4ERR_DEADLOCK = 10045,
 178         NFS4ERR_FILE_OPEN = 10046,
 179         NFS4ERR_ADMIN_REVOKED = 10047,
 180         NFS4ERR_CB_PATH_DOWN = 10048,
 181
 182         /* nfs41 */
 183         NFS4ERR_BADIOMODE       = 10049,
 184         NFS4ERR_BADLAYOUT       = 10050,
 185         NFS4ERR_BAD_SESSION_DIGEST = 10051,
 186         NFS4ERR_BADSESSION      = 10052,
 187         NFS4ERR_BADSLOT         = 10053,
 188         NFS4ERR_COMPLETE_ALREADY = 10054,
 189         NFS4ERR_CONN_NOT_BOUND_TO_SESSION = 10055,
 190         NFS4ERR_DELEG_ALREADY_WANTED = 10056,
 191         NFS4ERR_BACK_CHAN_BUSY  = 10057,        /* backchan reqs outstanding */
 192         NFS4ERR_LAYOUTTRYLATER  = 10058,
 193         NFS4ERR_LAYOUTUNAVAILABLE = 10059,
 194         NFS4ERR_NOMATCHING_LAYOUT = 10060,
 195         NFS4ERR_RECALLCONFLICT  = 10061,
 196         NFS4ERR_UNKNOWN_LAYOUTTYPE = 10062,
 197         NFS4ERR_SEQ_MISORDERED = 10063,         /* unexpected seq.id in req */
 198         NFS4ERR_SEQUENCE_POS    = 10064,        /* [CB_]SEQ. op not 1st op */
 199         NFS4ERR_REQ_TOO_BIG     = 10065,        /* request too big */
 200         NFS4ERR_REP_TOO_BIG     = 10066,        /* reply too big */
 201         NFS4ERR_REP_TOO_BIG_TO_CACHE = 10067,   /* rep. not all cached */
 202         NFS4ERR_RETRY_UNCACHED_REP = 10068,     /* retry & rep. uncached */
 203         NFS4ERR_UNSAFE_COMPOUND = 10069,        /* retry/recovery too hard */
 204         NFS4ERR_TOO_MANY_OPS    = 10070,        /* too many ops in [CB_]COMP */
 205         NFS4ERR_OP_NOT_IN_SESSION = 10071,      /* op needs [CB_]SEQ. op */
 206         NFS4ERR_HASH_ALG_UNSUPP = 10072,        /* hash alg. not supp. */
 207                                                 /* Error 10073 is unused. */
 208         NFS4ERR_CLIENTID_BUSY   = 10074,        /* clientid has state */
 209         NFS4ERR_PNFS_IO_HOLE    = 10075,        /* IO to _SPARSE file hole */
 210         NFS4ERR_SEQ_FALSE_RETRY = 10076,        /* retry not original */
 211         NFS4ERR_BAD_HIGH_SLOT   = 10077,        /* sequence arg bad */
 212         NFS4ERR_DEADSESSION     = 10078,        /* persistent session dead */
 213         NFS4ERR_ENCR_ALG_UNSUPP = 10079,        /* SSV alg mismatch */
 214         NFS4ERR_PNFS_NO_LAYOUT  = 10080,        /* direct I/O with no layout */
 215         NFS4ERR_NOT_ONLY_OP     = 10081,        /* bad compound */
 216         NFS4ERR_WRONG_CRED      = 10082,        /* permissions:state change */
 217         NFS4ERR_WRONG_TYPE      = 10083,        /* current operation mismatch */
 218         NFS4ERR_DIRDELEG_UNAVAIL = 10084,       /* no directory delegation */
 219         NFS4ERR_REJECT_DELEG    = 10085,        /* on callback */
 220         NFS4ERR_RETURNCONFLICT  = 10086,        /* outstanding layoutreturn */
 221         NFS4ERR_DELEG_REVOKED   = 10087,        /* deleg./layout revoked */
 222 };
 223
 224 static inline bool seqid_mutating_err(u32 err)
 225 {
 226         /* rfc 3530 section 8.1.5: */
 227         switch (err) {
 228         case NFS4ERR_STALE_CLIENTID:
 229         case NFS4ERR_STALE_STATEID:
 230         case NFS4ERR_BAD_STATEID:
 231         case NFS4ERR_BAD_SEQID:
 232         case NFS4ERR_BADXDR:
 233         case NFS4ERR_RESOURCE:
 234         case NFS4ERR_NOFILEHANDLE:
 235                 return false;
 236         };
 237         return true;
 238 }
 239
 240 /*
 241  * Note: NF4BAD is not actually part of the protocol; it is just used
 242  * internally by nfsd.
 243  */
 244 enum nfs_ftype4 {
 245         NF4BAD          = 0,
 246         NF4REG          = 1,    /* Regular File */
 247         NF4DIR          = 2,    /* Directory */
 248         NF4BLK          = 3,    /* Special File - block device */
 249         NF4CHR          = 4,    /* Special File - character device */
 250         NF4LNK          = 5,    /* Symbolic Link */
 251         NF4SOCK         = 6,    /* Special File - socket */
 252         NF4FIFO         = 7,    /* Special File - fifo */
 253         NF4ATTRDIR      = 8,    /* Attribute Directory */
 254         NF4NAMEDATTR    = 9     /* Named Attribute */
 255 };
 256
 257 enum open_claim_type4 {
 258         NFS4_OPEN_CLAIM_NULL = 0,
 259         NFS4_OPEN_CLAIM_PREVIOUS = 1,
 260         NFS4_OPEN_CLAIM_DELEGATE_CUR = 2,
 261         NFS4_OPEN_CLAIM_DELEGATE_PREV = 3,
 262         NFS4_OPEN_CLAIM_FH = 4, /* 4.1 */
 263         NFS4_OPEN_CLAIM_DELEG_CUR_FH = 5, /* 4.1 */
 264         NFS4_OPEN_CLAIM_DELEG_PREV_FH = 6, /* 4.1 */
 265 };
 266
 267 enum opentype4 {
 268         NFS4_OPEN_NOCREATE = 0,
 269         NFS4_OPEN_CREATE = 1
 270 };
 271
 272 enum createmode4 {
 273         NFS4_CREATE_UNCHECKED = 0,
 274         NFS4_CREATE_GUARDED = 1,
 275         NFS4_CREATE_EXCLUSIVE = 2,
 276         /*
 277          * New to NFSv4.1. If session is persistent,
 278          * GUARDED4 MUST be used. Otherwise, use
 279          * EXCLUSIVE4_1 instead of EXCLUSIVE4.
 280          */
 281         NFS4_CREATE_EXCLUSIVE4_1 = 3
 282 };
 283
 284 enum limit_by4 {
 285         NFS4_LIMIT_SIZE = 1,
 286         NFS4_LIMIT_BLOCKS = 2
 287 };
 288
 289 enum open_delegation_type4 {
 290         NFS4_OPEN_DELEGATE_NONE = 0,
 291         NFS4_OPEN_DELEGATE_READ = 1,
 292         NFS4_OPEN_DELEGATE_WRITE = 2,
 293         NFS4_OPEN_DELEGATE_NONE_EXT = 3, /* 4.1 */
 294 };
 295
 296 enum why_no_delegation4 { /* new to v4.1 */
 297         WND4_NOT_WANTED = 0,
 298         WND4_CONTENTION = 1,
 299         WND4_RESOURCE = 2,
 300         WND4_NOT_SUPP_FTYPE = 3,
 301         WND4_WRITE_DELEG_NOT_SUPP_FTYPE = 4,
 302         WND4_NOT_SUPP_UPGRADE = 5,
 303         WND4_NOT_SUPP_DOWNGRADE = 6,
 304         WND4_CANCELLED = 7,
 305         WND4_IS_DIR = 8,
 306 };
 307
 308 enum lock_type4 {
 309         NFS4_UNLOCK_LT = 0,
 310         NFS4_READ_LT = 1,
 311         NFS4_WRITE_LT = 2,
 312         NFS4_READW_LT = 3,
 313         NFS4_WRITEW_LT = 4
 314 };
 315
 316
 317 /* Mandatory Attributes */
 318 #define FATTR4_WORD0_SUPPORTED_ATTRS    (1UL << 0)
 319 #define FATTR4_WORD0_TYPE               (1UL << 1)
 320 #define FATTR4_WORD0_FH_EXPIRE_TYPE     (1UL << 2)
 321 #define FATTR4_WORD0_CHANGE             (1UL << 3)
 322 #define FATTR4_WORD0_SIZE               (1UL << 4)
 323 #define FATTR4_WORD0_LINK_SUPPORT       (1UL << 5)
 324 #define FATTR4_WORD0_SYMLINK_SUPPORT    (1UL << 6)
 325 #define FATTR4_WORD0_NAMED_ATTR         (1UL << 7)
 326 #define FATTR4_WORD0_FSID               (1UL << 8)
 327 #define FATTR4_WORD0_UNIQUE_HANDLES     (1UL << 9)
 328 #define FATTR4_WORD0_LEASE_TIME         (1UL << 10)
 329 #define FATTR4_WORD0_RDATTR_ERROR       (1UL << 11)
 330 /* Mandatory in NFSv4.1 */
 331 #define FATTR4_WORD2_SUPPATTR_EXCLCREAT (1UL << 11)
 332
 333 /* Recommended Attributes */
 334 #define FATTR4_WORD0_ACL                (1UL << 12)
 335 #define FATTR4_WORD0_ACLSUPPORT         (1UL << 13)
 336 #define FATTR4_WORD0_ARCHIVE            (1UL << 14)
 337 #define FATTR4_WORD0_CANSETTIME         (1UL << 15)
 338 #define FATTR4_WORD0_CASE_INSENSITIVE   (1UL << 16)
 339 #define FATTR4_WORD0_CASE_PRESERVING    (1UL << 17)
 340 #define FATTR4_WORD0_CHOWN_RESTRICTED   (1UL << 18)
 341 #define FATTR4_WORD0_FILEHANDLE         (1UL << 19)
 342 #define FATTR4_WORD0_FILEID             (1UL << 20)
 343 #define FATTR4_WORD0_FILES_AVAIL        (1UL << 21)
 344 #define FATTR4_WORD0_FILES_FREE         (1UL << 22)
 345 #define FATTR4_WORD0_FILES_TOTAL        (1UL << 23)
 346 #define FATTR4_WORD0_FS_LOCATIONS       (1UL << 24)
 347 #define FATTR4_WORD0_HIDDEN             (1UL << 25)
 348 #define FATTR4_WORD0_HOMOGENEOUS        (1UL << 26)
 349 #define FATTR4_WORD0_MAXFILESIZE        (1UL << 27)
 350 #define FATTR4_WORD0_MAXLINK            (1UL << 28)
 351 #define FATTR4_WORD0_MAXNAME            (1UL << 29)
 352 #define FATTR4_WORD0_MAXREAD            (1UL << 30)
 353 #define FATTR4_WORD0_MAXWRITE           (1UL << 31)
 354 #define FATTR4_WORD1_MIMETYPE           (1UL << 0)
 355 #define FATTR4_WORD1_MODE               (1UL << 1)
 356 #define FATTR4_WORD1_NO_TRUNC           (1UL << 2)
 357 #define FATTR4_WORD1_NUMLINKS           (1UL << 3)
 358 #define FATTR4_WORD1_OWNER              (1UL << 4)
 359 #define FATTR4_WORD1_OWNER_GROUP        (1UL << 5)
 360 #define FATTR4_WORD1_QUOTA_HARD         (1UL << 6)
 361 #define FATTR4_WORD1_QUOTA_SOFT         (1UL << 7)
 362 #define FATTR4_WORD1_QUOTA_USED         (1UL << 8)
 363 #define FATTR4_WORD1_RAWDEV             (1UL << 9)
 364 #define FATTR4_WORD1_SPACE_AVAIL        (1UL << 10)
 365 #define FATTR4_WORD1_SPACE_FREE         (1UL << 11)
 366 #define FATTR4_WORD1_SPACE_TOTAL        (1UL << 12)
 367 #define FATTR4_WORD1_SPACE_USED         (1UL << 13)
 368 #define FATTR4_WORD1_SYSTEM             (1UL << 14)
 369 #define FATTR4_WORD1_TIME_ACCESS        (1UL << 15)
 370 #define FATTR4_WORD1_TIME_ACCESS_SET    (1UL << 16)
 371 #define FATTR4_WORD1_TIME_BACKUP        (1UL << 17)
 372 #define FATTR4_WORD1_TIME_CREATE        (1UL << 18)
 373 #define FATTR4_WORD1_TIME_DELTA         (1UL << 19)
 374 #define FATTR4_WORD1_TIME_METADATA      (1UL << 20)
 375 #define FATTR4_WORD1_TIME_MODIFY        (1UL << 21)
 376 #define FATTR4_WORD1_TIME_MODIFY_SET    (1UL << 22)
 377 #define FATTR4_WORD1_MOUNTED_ON_FILEID  (1UL << 23)
 378 #define FATTR4_WORD1_FS_LAYOUT_TYPES    (1UL << 30)
 379 #define FATTR4_WORD2_LAYOUT_BLKSIZE     (1UL << 1)
 380 #define FATTR4_WORD2_MDSTHRESHOLD       (1UL << 4)
 381
 382 /* MDS threshold bitmap bits */
 383 #define THRESHOLD_RD                    (1UL << 0)
 384 #define THRESHOLD_WR                    (1UL << 1)
 385 #define THRESHOLD_RD_IO                 (1UL << 2)
 386 #define THRESHOLD_WR_IO                 (1UL << 3)
 387
 388 #define NFSPROC4_NULL 0
 389 #define NFSPROC4_COMPOUND 1
 390 #define NFS4_VERSION 4
 391 #define NFS4_MINOR_VERSION 0
 392
 393 #if defined(CONFIG_NFS_V4_1)
 394 #define NFS4_MAX_MINOR_VERSION 1
 395 #else
 396 #define NFS4_MAX_MINOR_VERSION 0
 397 #endif /* CONFIG_NFS_V4_1 */
 398
 399 #define NFS4_DEBUG 1
 400
 401 /* Index of predefined Linux client operations */
 402
 403 enum {
 404         NFSPROC4_CLNT_NULL = 0,         /* Unused */
 405         NFSPROC4_CLNT_READ,
 406         NFSPROC4_CLNT_WRITE,
 407         NFSPROC4_CLNT_COMMIT,
 408         NFSPROC4_CLNT_OPEN,
 409         NFSPROC4_CLNT_OPEN_CONFIRM,
 410         NFSPROC4_CLNT_OPEN_NOATTR,
 411         NFSPROC4_CLNT_OPEN_DOWNGRADE,
 412         NFSPROC4_CLNT_CLOSE,
 413         NFSPROC4_CLNT_SETATTR,
 414         NFSPROC4_CLNT_FSINFO,
 415         NFSPROC4_CLNT_RENEW,
 416         NFSPROC4_CLNT_SETCLIENTID,
 417         NFSPROC4_CLNT_SETCLIENTID_CONFIRM,
 418         NFSPROC4_CLNT_LOCK,
 419         NFSPROC4_CLNT_LOCKT,
 420         NFSPROC4_CLNT_LOCKU,
 421         NFSPROC4_CLNT_ACCESS,
 422         NFSPROC4_CLNT_GETATTR,
 423         NFSPROC4_CLNT_LOOKUP,
 424         NFSPROC4_CLNT_LOOKUP_ROOT,
 425         NFSPROC4_CLNT_REMOVE,
 426         NFSPROC4_CLNT_RENAME,
 427         NFSPROC4_CLNT_LINK,
 428         NFSPROC4_CLNT_SYMLINK,
 429         NFSPROC4_CLNT_CREATE,
 430         NFSPROC4_CLNT_PATHCONF,
 431         NFSPROC4_CLNT_STATFS,
 432         NFSPROC4_CLNT_READLINK,
 433         NFSPROC4_CLNT_READDIR,
 434         NFSPROC4_CLNT_SERVER_CAPS,
 435         NFSPROC4_CLNT_DELEGRETURN,
 436         NFSPROC4_CLNT_GETACL,
 437         NFSPROC4_CLNT_SETACL,
 438         NFSPROC4_CLNT_FS_LOCATIONS,
 439         NFSPROC4_CLNT_RELEASE_LOCKOWNER,
 440         NFSPROC4_CLNT_SECINFO,
 441
 442         /* nfs41 */
 443         NFSPROC4_CLNT_EXCHANGE_ID,
 444         NFSPROC4_CLNT_CREATE_SESSION,
 445         NFSPROC4_CLNT_DESTROY_SESSION,
 446         NFSPROC4_CLNT_SEQUENCE,
 447         NFSPROC4_CLNT_GET_LEASE_TIME,
 448         NFSPROC4_CLNT_RECLAIM_COMPLETE,
 449         NFSPROC4_CLNT_LAYOUTGET,
 450         NFSPROC4_CLNT_GETDEVICEINFO,
 451         NFSPROC4_CLNT_LAYOUTCOMMIT,
 452         NFSPROC4_CLNT_LAYOUTRETURN,
 453         NFSPROC4_CLNT_SECINFO_NO_NAME,
 454         NFSPROC4_CLNT_TEST_STATEID,
 455         NFSPROC4_CLNT_FREE_STATEID,
 456         NFSPROC4_CLNT_GETDEVICELIST,
 457         NFSPROC4_CLNT_BIND_CONN_TO_SESSION,
 458         NFSPROC4_CLNT_DESTROY_CLIENTID,
 459 };
 460
 461 /* nfs41 types */
 462 struct nfs4_sessionid {
 463         unsigned char data[NFS4_MAX_SESSIONID_LEN];
 464 };
 465
 466 /* Create Session Flags */
 467 #define SESSION4_PERSIST        0x001
 468 #define SESSION4_BACK_CHAN      0x002
 469 #define SESSION4_RDMA           0x004
 470
 471 #define SESSION4_FLAG_MASK_A    0x007
 472
 473 enum state_protect_how4 {
 474         SP4_NONE        = 0,
 475         SP4_MACH_CRED   = 1,
 476         SP4_SSV         = 2
 477 };
 478
 479 enum pnfs_layouttype {
 480         LAYOUT_NFSV4_1_FILES  = 1,
 481         LAYOUT_OSD2_OBJECTS = 2,
 482         LAYOUT_BLOCK_VOLUME = 3,
 483 };
 484
 485 /* used for both layout return and recall */
 486 enum pnfs_layoutreturn_type {
 487         RETURN_FILE = 1,
 488         RETURN_FSID = 2,
 489         RETURN_ALL  = 3
 490 };
 491
 492 enum pnfs_iomode {
 493         IOMODE_READ = 1,
 494         IOMODE_RW = 2,
 495         IOMODE_ANY = 3,
 496 };
 497
 498 enum pnfs_notify_deviceid_type4 {
 499         NOTIFY_DEVICEID4_CHANGE = 1 << 1,
 500         NOTIFY_DEVICEID4_DELETE = 1 << 2,
 501 };
 502
 503 #define NFL4_UFLG_MASK                  0x0000003F
 504 #define NFL4_UFLG_DENSE                 0x00000001
 505 #define NFL4_UFLG_COMMIT_THRU_MDS       0x00000002
 506 #define NFL4_UFLG_STRIPE_UNIT_SIZE_MASK 0xFFFFFFC0
 507
 508 /* Encoded in the loh_body field of type layouthint4 */
 509 enum filelayout_hint_care4 {
 510         NFLH4_CARE_DENSE                = NFL4_UFLG_DENSE,
 511         NFLH4_CARE_COMMIT_THRU_MDS      = NFL4_UFLG_COMMIT_THRU_MDS,
 512         NFLH4_CARE_STRIPE_UNIT_SIZE     = 0x00000040,
 513         NFLH4_CARE_STRIPE_COUNT         = 0x00000080
 514 };
 515
 516 #define NFS4_DEVICEID4_SIZE 16
 517
 518 struct nfs4_deviceid {
 519         char data[NFS4_DEVICEID4_SIZE];
 520 };
 521
 522 #endif