linux/include/linux/nfs4.h
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   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 *  include/linux/nfs4.h
   4 *
   5 *  NFSv4 protocol definitions.
   6 *
   7 *  Copyright (c) 2002 The Regents of the University of Michigan.
   8 *  All rights reserved.
   9 *
  10 *  Kendrick Smith <kmsmith@umich.edu>
  11 *  Andy Adamson   <andros@umich.edu>
  12 */
  13#ifndef _LINUX_NFS4_H
  14#define _LINUX_NFS4_H
  15
  16#include <linux/list.h>
  17#include <linux/uidgid.h>
  18#include <uapi/linux/nfs4.h>
  19
  20enum nfs4_acl_whotype {
  21        NFS4_ACL_WHO_NAMED = 0,
  22        NFS4_ACL_WHO_OWNER,
  23        NFS4_ACL_WHO_GROUP,
  24        NFS4_ACL_WHO_EVERYONE,
  25};
  26
  27struct nfs4_ace {
  28        uint32_t        type;
  29        uint32_t        flag;
  30        uint32_t        access_mask;
  31        int             whotype;
  32        union {
  33                kuid_t  who_uid;
  34                kgid_t  who_gid;
  35        };
  36};
  37
  38struct nfs4_acl {
  39        uint32_t        naces;
  40        struct nfs4_ace aces[0];
  41};
  42
  43#define NFS4_MAXLABELLEN        2048
  44
  45struct nfs4_label {
  46        uint32_t        lfs;
  47        uint32_t        pi;
  48        u32             len;
  49        char    *label;
  50};
  51
  52typedef struct { char data[NFS4_VERIFIER_SIZE]; } nfs4_verifier;
  53
  54struct nfs4_stateid_struct {
  55        union {
  56                char data[NFS4_STATEID_SIZE];
  57                struct {
  58                        __be32 seqid;
  59                        char other[NFS4_STATEID_OTHER_SIZE];
  60                } __attribute__ ((packed));
  61        };
  62
  63        enum {
  64                NFS4_INVALID_STATEID_TYPE = 0,
  65                NFS4_SPECIAL_STATEID_TYPE,
  66                NFS4_OPEN_STATEID_TYPE,
  67                NFS4_LOCK_STATEID_TYPE,
  68                NFS4_DELEGATION_STATEID_TYPE,
  69                NFS4_LAYOUT_STATEID_TYPE,
  70                NFS4_PNFS_DS_STATEID_TYPE,
  71                NFS4_REVOKED_STATEID_TYPE,
  72        } type;
  73};
  74
  75typedef struct nfs4_stateid_struct nfs4_stateid;
  76
  77enum nfs_opnum4 {
  78        OP_ACCESS = 3,
  79        OP_CLOSE = 4,
  80        OP_COMMIT = 5,
  81        OP_CREATE = 6,
  82        OP_DELEGPURGE = 7,
  83        OP_DELEGRETURN = 8,
  84        OP_GETATTR = 9,
  85        OP_GETFH = 10,
  86        OP_LINK = 11,
  87        OP_LOCK = 12,
  88        OP_LOCKT = 13,
  89        OP_LOCKU = 14,
  90        OP_LOOKUP = 15,
  91        OP_LOOKUPP = 16,
  92        OP_NVERIFY = 17,
  93        OP_OPEN = 18,
  94        OP_OPENATTR = 19,
  95        OP_OPEN_CONFIRM = 20,
  96        OP_OPEN_DOWNGRADE = 21,
  97        OP_PUTFH = 22,
  98        OP_PUTPUBFH = 23,
  99        OP_PUTROOTFH = 24,
 100        OP_READ = 25,
 101        OP_READDIR = 26,
 102        OP_READLINK = 27,
 103        OP_REMOVE = 28,
 104        OP_RENAME = 29,
 105        OP_RENEW = 30,
 106        OP_RESTOREFH = 31,
 107        OP_SAVEFH = 32,
 108        OP_SECINFO = 33,
 109        OP_SETATTR = 34,
 110        OP_SETCLIENTID = 35,
 111        OP_SETCLIENTID_CONFIRM = 36,
 112        OP_VERIFY = 37,
 113        OP_WRITE = 38,
 114        OP_RELEASE_LOCKOWNER = 39,
 115
 116        /* nfs41 */
 117        OP_BACKCHANNEL_CTL = 40,
 118        OP_BIND_CONN_TO_SESSION = 41,
 119        OP_EXCHANGE_ID = 42,
 120        OP_CREATE_SESSION = 43,
 121        OP_DESTROY_SESSION = 44,
 122        OP_FREE_STATEID = 45,
 123        OP_GET_DIR_DELEGATION = 46,
 124        OP_GETDEVICEINFO = 47,
 125        OP_GETDEVICELIST = 48,
 126        OP_LAYOUTCOMMIT = 49,
 127        OP_LAYOUTGET = 50,
 128        OP_LAYOUTRETURN = 51,
 129        OP_SECINFO_NO_NAME = 52,
 130        OP_SEQUENCE = 53,
 131        OP_SET_SSV = 54,
 132        OP_TEST_STATEID = 55,
 133        OP_WANT_DELEGATION = 56,
 134        OP_DESTROY_CLIENTID = 57,
 135        OP_RECLAIM_COMPLETE = 58,
 136
 137        /* nfs42 */
 138        OP_ALLOCATE = 59,
 139        OP_COPY = 60,
 140        OP_COPY_NOTIFY = 61,
 141        OP_DEALLOCATE = 62,
 142        OP_IO_ADVISE = 63,
 143        OP_LAYOUTERROR = 64,
 144        OP_LAYOUTSTATS = 65,
 145        OP_OFFLOAD_CANCEL = 66,
 146        OP_OFFLOAD_STATUS = 67,
 147        OP_READ_PLUS = 68,
 148        OP_SEEK = 69,
 149        OP_WRITE_SAME = 70,
 150        OP_CLONE = 71,
 151
 152        OP_ILLEGAL = 10044,
 153};
 154
 155/*Defining first and last NFS4 operations implemented.
 156Needs to be updated if more operations are defined in future.*/
 157
 158#define FIRST_NFS4_OP   OP_ACCESS
 159#define LAST_NFS40_OP   OP_RELEASE_LOCKOWNER
 160#define LAST_NFS41_OP   OP_RECLAIM_COMPLETE
 161#define LAST_NFS42_OP   OP_CLONE
 162#define LAST_NFS4_OP    LAST_NFS42_OP
 163
 164enum nfsstat4 {
 165        NFS4_OK = 0,
 166        NFS4ERR_PERM = 1,
 167        NFS4ERR_NOENT = 2,
 168        NFS4ERR_IO = 5,
 169        NFS4ERR_NXIO = 6,
 170        NFS4ERR_ACCESS = 13,
 171        NFS4ERR_EXIST = 17,
 172        NFS4ERR_XDEV = 18,
 173        /* Unused/reserved 19 */
 174        NFS4ERR_NOTDIR = 20,
 175        NFS4ERR_ISDIR = 21,
 176        NFS4ERR_INVAL = 22,
 177        NFS4ERR_FBIG = 27,
 178        NFS4ERR_NOSPC = 28,
 179        NFS4ERR_ROFS = 30,
 180        NFS4ERR_MLINK = 31,
 181        NFS4ERR_NAMETOOLONG = 63,
 182        NFS4ERR_NOTEMPTY = 66,
 183        NFS4ERR_DQUOT = 69,
 184        NFS4ERR_STALE = 70,
 185        NFS4ERR_BADHANDLE = 10001,
 186        NFS4ERR_BAD_COOKIE = 10003,
 187        NFS4ERR_NOTSUPP = 10004,
 188        NFS4ERR_TOOSMALL = 10005,
 189        NFS4ERR_SERVERFAULT = 10006,
 190        NFS4ERR_BADTYPE = 10007,
 191        NFS4ERR_DELAY = 10008,
 192        NFS4ERR_SAME = 10009,
 193        NFS4ERR_DENIED = 10010,
 194        NFS4ERR_EXPIRED = 10011,
 195        NFS4ERR_LOCKED = 10012,
 196        NFS4ERR_GRACE = 10013,
 197        NFS4ERR_FHEXPIRED = 10014,
 198        NFS4ERR_SHARE_DENIED = 10015,
 199        NFS4ERR_WRONGSEC = 10016,
 200        NFS4ERR_CLID_INUSE = 10017,
 201        NFS4ERR_RESOURCE = 10018,
 202        NFS4ERR_MOVED = 10019,
 203        NFS4ERR_NOFILEHANDLE = 10020,
 204        NFS4ERR_MINOR_VERS_MISMATCH = 10021,
 205        NFS4ERR_STALE_CLIENTID = 10022,
 206        NFS4ERR_STALE_STATEID = 10023,
 207        NFS4ERR_OLD_STATEID = 10024,
 208        NFS4ERR_BAD_STATEID = 10025,
 209        NFS4ERR_BAD_SEQID = 10026,
 210        NFS4ERR_NOT_SAME = 10027,
 211        NFS4ERR_LOCK_RANGE = 10028,
 212        NFS4ERR_SYMLINK = 10029,
 213        NFS4ERR_RESTOREFH = 10030,
 214        NFS4ERR_LEASE_MOVED = 10031,
 215        NFS4ERR_ATTRNOTSUPP = 10032,
 216        NFS4ERR_NO_GRACE = 10033,
 217        NFS4ERR_RECLAIM_BAD = 10034,
 218        NFS4ERR_RECLAIM_CONFLICT = 10035,
 219        NFS4ERR_BADXDR = 10036,
 220        NFS4ERR_LOCKS_HELD = 10037,
 221        NFS4ERR_OPENMODE = 10038,
 222        NFS4ERR_BADOWNER = 10039,
 223        NFS4ERR_BADCHAR = 10040,
 224        NFS4ERR_BADNAME = 10041,
 225        NFS4ERR_BAD_RANGE = 10042,
 226        NFS4ERR_LOCK_NOTSUPP = 10043,
 227        NFS4ERR_OP_ILLEGAL = 10044,
 228        NFS4ERR_DEADLOCK = 10045,
 229        NFS4ERR_FILE_OPEN = 10046,
 230        NFS4ERR_ADMIN_REVOKED = 10047,
 231        NFS4ERR_CB_PATH_DOWN = 10048,
 232
 233        /* nfs41 */
 234        NFS4ERR_BADIOMODE       = 10049,
 235        NFS4ERR_BADLAYOUT       = 10050,
 236        NFS4ERR_BAD_SESSION_DIGEST = 10051,
 237        NFS4ERR_BADSESSION      = 10052,
 238        NFS4ERR_BADSLOT         = 10053,
 239        NFS4ERR_COMPLETE_ALREADY = 10054,
 240        NFS4ERR_CONN_NOT_BOUND_TO_SESSION = 10055,
 241        NFS4ERR_DELEG_ALREADY_WANTED = 10056,
 242        NFS4ERR_BACK_CHAN_BUSY  = 10057,        /* backchan reqs outstanding */
 243        NFS4ERR_LAYOUTTRYLATER  = 10058,
 244        NFS4ERR_LAYOUTUNAVAILABLE = 10059,
 245        NFS4ERR_NOMATCHING_LAYOUT = 10060,
 246        NFS4ERR_RECALLCONFLICT  = 10061,
 247        NFS4ERR_UNKNOWN_LAYOUTTYPE = 10062,
 248        NFS4ERR_SEQ_MISORDERED = 10063,         /* unexpected seq.id in req */
 249        NFS4ERR_SEQUENCE_POS    = 10064,        /* [CB_]SEQ. op not 1st op */
 250        NFS4ERR_REQ_TOO_BIG     = 10065,        /* request too big */
 251        NFS4ERR_REP_TOO_BIG     = 10066,        /* reply too big */
 252        NFS4ERR_REP_TOO_BIG_TO_CACHE = 10067,   /* rep. not all cached */
 253        NFS4ERR_RETRY_UNCACHED_REP = 10068,     /* retry & rep. uncached */
 254        NFS4ERR_UNSAFE_COMPOUND = 10069,        /* retry/recovery too hard */
 255        NFS4ERR_TOO_MANY_OPS    = 10070,        /* too many ops in [CB_]COMP */
 256        NFS4ERR_OP_NOT_IN_SESSION = 10071,      /* op needs [CB_]SEQ. op */
 257        NFS4ERR_HASH_ALG_UNSUPP = 10072,        /* hash alg. not supp. */
 258                                                /* Error 10073 is unused. */
 259        NFS4ERR_CLIENTID_BUSY   = 10074,        /* clientid has state */
 260        NFS4ERR_PNFS_IO_HOLE    = 10075,        /* IO to _SPARSE file hole */
 261        NFS4ERR_SEQ_FALSE_RETRY = 10076,        /* retry not original */
 262        NFS4ERR_BAD_HIGH_SLOT   = 10077,        /* sequence arg bad */
 263        NFS4ERR_DEADSESSION     = 10078,        /* persistent session dead */
 264        NFS4ERR_ENCR_ALG_UNSUPP = 10079,        /* SSV alg mismatch */
 265        NFS4ERR_PNFS_NO_LAYOUT  = 10080,        /* direct I/O with no layout */
 266        NFS4ERR_NOT_ONLY_OP     = 10081,        /* bad compound */
 267        NFS4ERR_WRONG_CRED      = 10082,        /* permissions:state change */
 268        NFS4ERR_WRONG_TYPE      = 10083,        /* current operation mismatch */
 269        NFS4ERR_DIRDELEG_UNAVAIL = 10084,       /* no directory delegation */
 270        NFS4ERR_REJECT_DELEG    = 10085,        /* on callback */
 271        NFS4ERR_RETURNCONFLICT  = 10086,        /* outstanding layoutreturn */
 272        NFS4ERR_DELEG_REVOKED   = 10087,        /* deleg./layout revoked */
 273
 274        /* nfs42 */
 275        NFS4ERR_PARTNER_NOTSUPP = 10088,
 276        NFS4ERR_PARTNER_NO_AUTH = 10089,
 277        NFS4ERR_UNION_NOTSUPP = 10090,
 278        NFS4ERR_OFFLOAD_DENIED = 10091,
 279        NFS4ERR_WRONG_LFS = 10092,
 280        NFS4ERR_BADLABEL = 10093,
 281        NFS4ERR_OFFLOAD_NO_REQS = 10094,
 282};
 283
 284static inline bool seqid_mutating_err(u32 err)
 285{
 286        /* See RFC 7530, section 9.1.7 */
 287        switch (err) {
 288        case NFS4ERR_STALE_CLIENTID:
 289        case NFS4ERR_STALE_STATEID:
 290        case NFS4ERR_BAD_STATEID:
 291        case NFS4ERR_BAD_SEQID:
 292        case NFS4ERR_BADXDR:
 293        case NFS4ERR_RESOURCE:
 294        case NFS4ERR_NOFILEHANDLE:
 295        case NFS4ERR_MOVED:
 296                return false;
 297        };
 298        return true;
 299}
 300
 301/*
 302 * Note: NF4BAD is not actually part of the protocol; it is just used
 303 * internally by nfsd.
 304 */
 305enum nfs_ftype4 {
 306        NF4BAD          = 0,
 307        NF4REG          = 1,    /* Regular File */
 308        NF4DIR          = 2,    /* Directory */
 309        NF4BLK          = 3,    /* Special File - block device */
 310        NF4CHR          = 4,    /* Special File - character device */
 311        NF4LNK          = 5,    /* Symbolic Link */
 312        NF4SOCK         = 6,    /* Special File - socket */
 313        NF4FIFO         = 7,    /* Special File - fifo */
 314        NF4ATTRDIR      = 8,    /* Attribute Directory */
 315        NF4NAMEDATTR    = 9     /* Named Attribute */
 316};
 317
 318enum open_claim_type4 {
 319        NFS4_OPEN_CLAIM_NULL = 0,
 320        NFS4_OPEN_CLAIM_PREVIOUS = 1,
 321        NFS4_OPEN_CLAIM_DELEGATE_CUR = 2,
 322        NFS4_OPEN_CLAIM_DELEGATE_PREV = 3,
 323        NFS4_OPEN_CLAIM_FH = 4, /* 4.1 */
 324        NFS4_OPEN_CLAIM_DELEG_CUR_FH = 5, /* 4.1 */
 325        NFS4_OPEN_CLAIM_DELEG_PREV_FH = 6, /* 4.1 */
 326};
 327
 328enum opentype4 {
 329        NFS4_OPEN_NOCREATE = 0,
 330        NFS4_OPEN_CREATE = 1
 331};
 332
 333enum createmode4 {
 334        NFS4_CREATE_UNCHECKED = 0,
 335        NFS4_CREATE_GUARDED = 1,
 336        NFS4_CREATE_EXCLUSIVE = 2,
 337        /*
 338         * New to NFSv4.1. If session is persistent,
 339         * GUARDED4 MUST be used. Otherwise, use
 340         * EXCLUSIVE4_1 instead of EXCLUSIVE4.
 341         */
 342        NFS4_CREATE_EXCLUSIVE4_1 = 3
 343};
 344
 345enum limit_by4 {
 346        NFS4_LIMIT_SIZE = 1,
 347        NFS4_LIMIT_BLOCKS = 2
 348};
 349
 350enum open_delegation_type4 {
 351        NFS4_OPEN_DELEGATE_NONE = 0,
 352        NFS4_OPEN_DELEGATE_READ = 1,
 353        NFS4_OPEN_DELEGATE_WRITE = 2,
 354        NFS4_OPEN_DELEGATE_NONE_EXT = 3, /* 4.1 */
 355};
 356
 357enum why_no_delegation4 { /* new to v4.1 */
 358        WND4_NOT_WANTED = 0,
 359        WND4_CONTENTION = 1,
 360        WND4_RESOURCE = 2,
 361        WND4_NOT_SUPP_FTYPE = 3,
 362        WND4_WRITE_DELEG_NOT_SUPP_FTYPE = 4,
 363        WND4_NOT_SUPP_UPGRADE = 5,
 364        WND4_NOT_SUPP_DOWNGRADE = 6,
 365        WND4_CANCELLED = 7,
 366        WND4_IS_DIR = 8,
 367};
 368
 369enum lock_type4 {
 370        NFS4_UNLOCK_LT = 0,
 371        NFS4_READ_LT = 1,
 372        NFS4_WRITE_LT = 2,
 373        NFS4_READW_LT = 3,
 374        NFS4_WRITEW_LT = 4
 375};
 376
 377
 378/* Mandatory Attributes */
 379#define FATTR4_WORD0_SUPPORTED_ATTRS    (1UL << 0)
 380#define FATTR4_WORD0_TYPE               (1UL << 1)
 381#define FATTR4_WORD0_FH_EXPIRE_TYPE     (1UL << 2)
 382#define FATTR4_WORD0_CHANGE             (1UL << 3)
 383#define FATTR4_WORD0_SIZE               (1UL << 4)
 384#define FATTR4_WORD0_LINK_SUPPORT       (1UL << 5)
 385#define FATTR4_WORD0_SYMLINK_SUPPORT    (1UL << 6)
 386#define FATTR4_WORD0_NAMED_ATTR         (1UL << 7)
 387#define FATTR4_WORD0_FSID               (1UL << 8)
 388#define FATTR4_WORD0_UNIQUE_HANDLES     (1UL << 9)
 389#define FATTR4_WORD0_LEASE_TIME         (1UL << 10)
 390#define FATTR4_WORD0_RDATTR_ERROR       (1UL << 11)
 391/* Mandatory in NFSv4.1 */
 392#define FATTR4_WORD2_SUPPATTR_EXCLCREAT (1UL << 11)
 393
 394/* Recommended Attributes */
 395#define FATTR4_WORD0_ACL                (1UL << 12)
 396#define FATTR4_WORD0_ACLSUPPORT         (1UL << 13)
 397#define FATTR4_WORD0_ARCHIVE            (1UL << 14)
 398#define FATTR4_WORD0_CANSETTIME         (1UL << 15)
 399#define FATTR4_WORD0_CASE_INSENSITIVE   (1UL << 16)
 400#define FATTR4_WORD0_CASE_PRESERVING    (1UL << 17)
 401#define FATTR4_WORD0_CHOWN_RESTRICTED   (1UL << 18)
 402#define FATTR4_WORD0_FILEHANDLE         (1UL << 19)
 403#define FATTR4_WORD0_FILEID             (1UL << 20)
 404#define FATTR4_WORD0_FILES_AVAIL        (1UL << 21)
 405#define FATTR4_WORD0_FILES_FREE         (1UL << 22)
 406#define FATTR4_WORD0_FILES_TOTAL        (1UL << 23)
 407#define FATTR4_WORD0_FS_LOCATIONS       (1UL << 24)
 408#define FATTR4_WORD0_HIDDEN             (1UL << 25)
 409#define FATTR4_WORD0_HOMOGENEOUS        (1UL << 26)
 410#define FATTR4_WORD0_MAXFILESIZE        (1UL << 27)
 411#define FATTR4_WORD0_MAXLINK            (1UL << 28)
 412#define FATTR4_WORD0_MAXNAME            (1UL << 29)
 413#define FATTR4_WORD0_MAXREAD            (1UL << 30)
 414#define FATTR4_WORD0_MAXWRITE           (1UL << 31)
 415#define FATTR4_WORD1_MIMETYPE           (1UL << 0)
 416#define FATTR4_WORD1_MODE               (1UL << 1)
 417#define FATTR4_WORD1_NO_TRUNC           (1UL << 2)
 418#define FATTR4_WORD1_NUMLINKS           (1UL << 3)
 419#define FATTR4_WORD1_OWNER              (1UL << 4)
 420#define FATTR4_WORD1_OWNER_GROUP        (1UL << 5)
 421#define FATTR4_WORD1_QUOTA_HARD         (1UL << 6)
 422#define FATTR4_WORD1_QUOTA_SOFT         (1UL << 7)
 423#define FATTR4_WORD1_QUOTA_USED         (1UL << 8)
 424#define FATTR4_WORD1_RAWDEV             (1UL << 9)
 425#define FATTR4_WORD1_SPACE_AVAIL        (1UL << 10)
 426#define FATTR4_WORD1_SPACE_FREE         (1UL << 11)
 427#define FATTR4_WORD1_SPACE_TOTAL        (1UL << 12)
 428#define FATTR4_WORD1_SPACE_USED         (1UL << 13)
 429#define FATTR4_WORD1_SYSTEM             (1UL << 14)
 430#define FATTR4_WORD1_TIME_ACCESS        (1UL << 15)
 431#define FATTR4_WORD1_TIME_ACCESS_SET    (1UL << 16)
 432#define FATTR4_WORD1_TIME_BACKUP        (1UL << 17)
 433#define FATTR4_WORD1_TIME_CREATE        (1UL << 18)
 434#define FATTR4_WORD1_TIME_DELTA         (1UL << 19)
 435#define FATTR4_WORD1_TIME_METADATA      (1UL << 20)
 436#define FATTR4_WORD1_TIME_MODIFY        (1UL << 21)
 437#define FATTR4_WORD1_TIME_MODIFY_SET    (1UL << 22)
 438#define FATTR4_WORD1_MOUNTED_ON_FILEID  (1UL << 23)
 439#define FATTR4_WORD1_FS_LAYOUT_TYPES    (1UL << 30)
 440#define FATTR4_WORD2_LAYOUT_TYPES       (1UL << 0)
 441#define FATTR4_WORD2_LAYOUT_BLKSIZE     (1UL << 1)
 442#define FATTR4_WORD2_MDSTHRESHOLD       (1UL << 4)
 443#define FATTR4_WORD2_CLONE_BLKSIZE      (1UL << 13)
 444#define FATTR4_WORD2_SECURITY_LABEL     (1UL << 16)
 445#define FATTR4_WORD2_MODE_UMASK         (1UL << 17)
 446
 447/* MDS threshold bitmap bits */
 448#define THRESHOLD_RD                    (1UL << 0)
 449#define THRESHOLD_WR                    (1UL << 1)
 450#define THRESHOLD_RD_IO                 (1UL << 2)
 451#define THRESHOLD_WR_IO                 (1UL << 3)
 452
 453#define NFSPROC4_NULL 0
 454#define NFSPROC4_COMPOUND 1
 455#define NFS4_VERSION 4
 456#define NFS4_MINOR_VERSION 0
 457
 458#define NFS4_DEBUG 1
 459
 460/*
 461 * Index of predefined Linux client operations
 462 *
 463 * To ensure that /proc/net/rpc/nfs remains correctly ordered, please
 464 * append only to this enum when adding new client operations.
 465 */
 466
 467enum {
 468        NFSPROC4_CLNT_NULL = 0,         /* Unused */
 469        NFSPROC4_CLNT_READ,
 470        NFSPROC4_CLNT_WRITE,
 471        NFSPROC4_CLNT_COMMIT,
 472        NFSPROC4_CLNT_OPEN,
 473        NFSPROC4_CLNT_OPEN_CONFIRM,
 474        NFSPROC4_CLNT_OPEN_NOATTR,
 475        NFSPROC4_CLNT_OPEN_DOWNGRADE,
 476        NFSPROC4_CLNT_CLOSE,
 477        NFSPROC4_CLNT_SETATTR,
 478        NFSPROC4_CLNT_FSINFO,
 479        NFSPROC4_CLNT_RENEW,
 480        NFSPROC4_CLNT_SETCLIENTID,
 481        NFSPROC4_CLNT_SETCLIENTID_CONFIRM,
 482        NFSPROC4_CLNT_LOCK,
 483        NFSPROC4_CLNT_LOCKT,
 484        NFSPROC4_CLNT_LOCKU,
 485        NFSPROC4_CLNT_ACCESS,
 486        NFSPROC4_CLNT_GETATTR,
 487        NFSPROC4_CLNT_LOOKUP,
 488        NFSPROC4_CLNT_LOOKUP_ROOT,
 489        NFSPROC4_CLNT_REMOVE,
 490        NFSPROC4_CLNT_RENAME,
 491        NFSPROC4_CLNT_LINK,
 492        NFSPROC4_CLNT_SYMLINK,
 493        NFSPROC4_CLNT_CREATE,
 494        NFSPROC4_CLNT_PATHCONF,
 495        NFSPROC4_CLNT_STATFS,
 496        NFSPROC4_CLNT_READLINK,
 497        NFSPROC4_CLNT_READDIR,
 498        NFSPROC4_CLNT_SERVER_CAPS,
 499        NFSPROC4_CLNT_DELEGRETURN,
 500        NFSPROC4_CLNT_GETACL,
 501        NFSPROC4_CLNT_SETACL,
 502        NFSPROC4_CLNT_FS_LOCATIONS,
 503        NFSPROC4_CLNT_RELEASE_LOCKOWNER,
 504        NFSPROC4_CLNT_SECINFO,
 505        NFSPROC4_CLNT_FSID_PRESENT,
 506
 507        NFSPROC4_CLNT_EXCHANGE_ID,
 508        NFSPROC4_CLNT_CREATE_SESSION,
 509        NFSPROC4_CLNT_DESTROY_SESSION,
 510        NFSPROC4_CLNT_SEQUENCE,
 511        NFSPROC4_CLNT_GET_LEASE_TIME,
 512        NFSPROC4_CLNT_RECLAIM_COMPLETE,
 513        NFSPROC4_CLNT_LAYOUTGET,
 514        NFSPROC4_CLNT_GETDEVICEINFO,
 515        NFSPROC4_CLNT_LAYOUTCOMMIT,
 516        NFSPROC4_CLNT_LAYOUTRETURN,
 517        NFSPROC4_CLNT_SECINFO_NO_NAME,
 518        NFSPROC4_CLNT_TEST_STATEID,
 519        NFSPROC4_CLNT_FREE_STATEID,
 520        NFSPROC4_CLNT_GETDEVICELIST,
 521        NFSPROC4_CLNT_BIND_CONN_TO_SESSION,
 522        NFSPROC4_CLNT_DESTROY_CLIENTID,
 523
 524        NFSPROC4_CLNT_SEEK,
 525        NFSPROC4_CLNT_ALLOCATE,
 526        NFSPROC4_CLNT_DEALLOCATE,
 527        NFSPROC4_CLNT_LAYOUTSTATS,
 528        NFSPROC4_CLNT_CLONE,
 529        NFSPROC4_CLNT_COPY,
 530
 531        NFSPROC4_CLNT_LOOKUPP,
 532};
 533
 534/* nfs41 types */
 535struct nfs4_sessionid {
 536        unsigned char data[NFS4_MAX_SESSIONID_LEN];
 537};
 538
 539/* Create Session Flags */
 540#define SESSION4_PERSIST        0x001
 541#define SESSION4_BACK_CHAN      0x002
 542#define SESSION4_RDMA           0x004
 543
 544#define SESSION4_FLAG_MASK_A    0x007
 545
 546enum state_protect_how4 {
 547        SP4_NONE        = 0,
 548        SP4_MACH_CRED   = 1,
 549        SP4_SSV         = 2
 550};
 551
 552enum pnfs_layouttype {
 553        LAYOUT_NFSV4_1_FILES  = 1,
 554        LAYOUT_OSD2_OBJECTS = 2,
 555        LAYOUT_BLOCK_VOLUME = 3,
 556        LAYOUT_FLEX_FILES = 4,
 557        LAYOUT_SCSI = 5,
 558        LAYOUT_TYPE_MAX
 559};
 560
 561/* used for both layout return and recall */
 562enum pnfs_layoutreturn_type {
 563        RETURN_FILE = 1,
 564        RETURN_FSID = 2,
 565        RETURN_ALL  = 3
 566};
 567
 568enum pnfs_iomode {
 569        IOMODE_READ = 1,
 570        IOMODE_RW = 2,
 571        IOMODE_ANY = 3,
 572};
 573
 574enum pnfs_notify_deviceid_type4 {
 575        NOTIFY_DEVICEID4_CHANGE = 1 << 1,
 576        NOTIFY_DEVICEID4_DELETE = 1 << 2,
 577};
 578
 579enum pnfs_block_volume_type {
 580        PNFS_BLOCK_VOLUME_SIMPLE        = 0,
 581        PNFS_BLOCK_VOLUME_SLICE         = 1,
 582        PNFS_BLOCK_VOLUME_CONCAT        = 2,
 583        PNFS_BLOCK_VOLUME_STRIPE        = 3,
 584        PNFS_BLOCK_VOLUME_SCSI          = 4,
 585};
 586
 587enum pnfs_block_extent_state {
 588        PNFS_BLOCK_READWRITE_DATA       = 0,
 589        PNFS_BLOCK_READ_DATA            = 1,
 590        PNFS_BLOCK_INVALID_DATA         = 2,
 591        PNFS_BLOCK_NONE_DATA            = 3,
 592};
 593
 594/* on the wire size of a block layout extent */
 595#define PNFS_BLOCK_EXTENT_SIZE \
 596        (7 * sizeof(__be32) + NFS4_DEVICEID4_SIZE)
 597
 598/* on the wire size of a scsi commit range */
 599#define PNFS_SCSI_RANGE_SIZE \
 600        (4 * sizeof(__be32))
 601
 602enum scsi_code_set {
 603        PS_CODE_SET_BINARY      = 1,
 604        PS_CODE_SET_ASCII       = 2,
 605        PS_CODE_SET_UTF8        = 3
 606};
 607
 608enum scsi_designator_type {
 609        PS_DESIGNATOR_T10       = 1,
 610        PS_DESIGNATOR_EUI64     = 2,
 611        PS_DESIGNATOR_NAA       = 3,
 612        PS_DESIGNATOR_NAME      = 8
 613};
 614
 615#define NFL4_UFLG_MASK                  0x0000003F
 616#define NFL4_UFLG_DENSE                 0x00000001
 617#define NFL4_UFLG_COMMIT_THRU_MDS       0x00000002
 618#define NFL4_UFLG_STRIPE_UNIT_SIZE_MASK 0xFFFFFFC0
 619
 620/* Encoded in the loh_body field of type layouthint4 */
 621enum filelayout_hint_care4 {
 622        NFLH4_CARE_DENSE                = NFL4_UFLG_DENSE,
 623        NFLH4_CARE_COMMIT_THRU_MDS      = NFL4_UFLG_COMMIT_THRU_MDS,
 624        NFLH4_CARE_STRIPE_UNIT_SIZE     = 0x00000040,
 625        NFLH4_CARE_STRIPE_COUNT         = 0x00000080
 626};
 627
 628#define NFS4_DEVICEID4_SIZE 16
 629
 630struct nfs4_deviceid {
 631        char data[NFS4_DEVICEID4_SIZE];
 632};
 633
 634enum data_content4 {
 635        NFS4_CONTENT_DATA               = 0,
 636        NFS4_CONTENT_HOLE               = 1,
 637};
 638
 639enum pnfs_update_layout_reason {
 640        PNFS_UPDATE_LAYOUT_UNKNOWN = 0,
 641        PNFS_UPDATE_LAYOUT_NO_PNFS,
 642        PNFS_UPDATE_LAYOUT_RD_ZEROLEN,
 643        PNFS_UPDATE_LAYOUT_MDSTHRESH,
 644        PNFS_UPDATE_LAYOUT_NOMEM,
 645        PNFS_UPDATE_LAYOUT_BULK_RECALL,
 646        PNFS_UPDATE_LAYOUT_IO_TEST_FAIL,
 647        PNFS_UPDATE_LAYOUT_FOUND_CACHED,
 648        PNFS_UPDATE_LAYOUT_RETURN,
 649        PNFS_UPDATE_LAYOUT_RETRY,
 650        PNFS_UPDATE_LAYOUT_BLOCKED,
 651        PNFS_UPDATE_LAYOUT_INVALID_OPEN,
 652        PNFS_UPDATE_LAYOUT_SEND_LAYOUTGET,
 653};
 654
 655#define NFS4_OP_MAP_NUM_LONGS                                   \
 656        DIV_ROUND_UP(LAST_NFS4_OP, 8 * sizeof(unsigned long))
 657#define NFS4_OP_MAP_NUM_WORDS \
 658        (NFS4_OP_MAP_NUM_LONGS * sizeof(unsigned long) / sizeof(u32))
 659struct nfs4_op_map {
 660        union {
 661                unsigned long longs[NFS4_OP_MAP_NUM_LONGS];
 662                u32 words[NFS4_OP_MAP_NUM_WORDS];
 663        } u;
 664};
 665
 666#endif
 667