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
  19struct 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
  30struct nfs4_acl {
  31        uint32_t        naces;
  32        struct nfs4_ace aces[0];
  33};
  34
  35typedef struct { char data[NFS4_VERIFIER_SIZE]; } nfs4_verifier;
  36
  37struct nfs_stateid4 {
  38        __be32 seqid;
  39        char other[NFS4_STATEID_OTHER_SIZE];
  40} __attribute__ ((packed));
  41
  42typedef struct nfs_stateid4 nfs4_stateid;
  43
  44enum 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.
 108Needs 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
 113enum 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
 224static 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 */
 244enum 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
 257enum 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
 267enum opentype4 {
 268        NFS4_OPEN_NOCREATE = 0,
 269        NFS4_OPEN_CREATE = 1
 270};
 271
 272enum 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
 284enum limit_by4 {
 285        NFS4_LIMIT_SIZE = 1,
 286        NFS4_LIMIT_BLOCKS = 2
 287};
 288
 289enum 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
 296enum 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
 308enum 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
 403enum {
 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 */
 462struct 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
 473enum state_protect_how4 {
 474        SP4_NONE        = 0,
 475        SP4_MACH_CRED   = 1,
 476        SP4_SSV         = 2
 477};
 478
 479enum 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 */
 486enum pnfs_layoutreturn_type {
 487        RETURN_FILE = 1,
 488        RETURN_FSID = 2,
 489        RETURN_ALL  = 3
 490};
 491
 492enum pnfs_iomode {
 493        IOMODE_READ = 1,
 494        IOMODE_RW = 2,
 495        IOMODE_ANY = 3,
 496};
 497
 498enum 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 */
 509enum 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
 518struct nfs4_deviceid {
 519        char data[NFS4_DEVICEID4_SIZE];
 520};
 521
 522#endif
 523
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