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
  13 #ifndef _LINUX_NFS4_H
  14 #define _LINUX_NFS4_H
  15
  16 #include <linux/types.h>
  17
  18 #define NFS4_BITMAP_SIZE        2
  19 #define NFS4_VERIFIER_SIZE      8
  20 #define NFS4_STATEID_SEQID_SIZE 4
  21 #define NFS4_STATEID_OTHER_SIZE 12
  22 #define NFS4_STATEID_SIZE       (NFS4_STATEID_SEQID_SIZE + NFS4_STATEID_OTHER_SIZE)
  23 #define NFS4_FHSIZE             128
  24 #define NFS4_MAXPATHLEN         PATH_MAX
  25 #define NFS4_MAXNAMLEN          NAME_MAX
  26 #define NFS4_OPAQUE_LIMIT       1024
  27 #define NFS4_MAX_SESSIONID_LEN  16
  28
  29 #define NFS4_ACCESS_READ        0x0001
  30 #define NFS4_ACCESS_LOOKUP      0x0002
  31 #define NFS4_ACCESS_MODIFY      0x0004
  32 #define NFS4_ACCESS_EXTEND      0x0008
  33 #define NFS4_ACCESS_DELETE      0x0010
  34 #define NFS4_ACCESS_EXECUTE     0x0020
  35
  36 #define NFS4_FH_PERSISTENT              0x0000
  37 #define NFS4_FH_NOEXPIRE_WITH_OPEN      0x0001
  38 #define NFS4_FH_VOLATILE_ANY            0x0002
  39 #define NFS4_FH_VOL_MIGRATION           0x0004
  40 #define NFS4_FH_VOL_RENAME              0x0008
  41
  42 #define NFS4_OPEN_RESULT_CONFIRM 0x0002
  43 #define NFS4_OPEN_RESULT_LOCKTYPE_POSIX 0x0004
  44
  45 #define NFS4_SHARE_ACCESS_MASK  0x000F
  46 #define NFS4_SHARE_ACCESS_READ  0x0001
  47 #define NFS4_SHARE_ACCESS_WRITE 0x0002
  48 #define NFS4_SHARE_ACCESS_BOTH  0x0003
  49 #define NFS4_SHARE_DENY_READ    0x0001
  50 #define NFS4_SHARE_DENY_WRITE   0x0002
  51 #define NFS4_SHARE_DENY_BOTH    0x0003
  52
  53 /* nfs41 */
  54 #define NFS4_SHARE_WANT_MASK            0xFF00
  55 #define NFS4_SHARE_WANT_NO_PREFERENCE   0x0000
  56 #define NFS4_SHARE_WANT_READ_DELEG      0x0100
  57 #define NFS4_SHARE_WANT_WRITE_DELEG     0x0200
  58 #define NFS4_SHARE_WANT_ANY_DELEG       0x0300
  59 #define NFS4_SHARE_WANT_NO_DELEG        0x0400
  60 #define NFS4_SHARE_WANT_CANCEL          0x0500
  61
  62 #define NFS4_SHARE_WHEN_MASK            0xF0000
  63 #define NFS4_SHARE_SIGNAL_DELEG_WHEN_RESRC_AVAIL        0x10000
  64 #define NFS4_SHARE_PUSH_DELEG_WHEN_UNCONTENDED          0x20000
  65
  66 #define NFS4_CDFC4_FORE 0x1
  67 #define NFS4_CDFC4_BACK 0x2
  68 #define NFS4_CDFC4_BOTH 0x3
  69 #define NFS4_CDFC4_FORE_OR_BOTH 0x3
  70 #define NFS4_CDFC4_BACK_OR_BOTH 0x7
  71
  72 #define NFS4_SET_TO_SERVER_TIME 0
  73 #define NFS4_SET_TO_CLIENT_TIME 1
  74
  75 #define NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE 0
  76 #define NFS4_ACE_ACCESS_DENIED_ACE_TYPE  1
  77 #define NFS4_ACE_SYSTEM_AUDIT_ACE_TYPE   2
  78 #define NFS4_ACE_SYSTEM_ALARM_ACE_TYPE   3
  79
  80 #define ACL4_SUPPORT_ALLOW_ACL 0x01
  81 #define ACL4_SUPPORT_DENY_ACL  0x02
  82 #define ACL4_SUPPORT_AUDIT_ACL 0x04
  83 #define ACL4_SUPPORT_ALARM_ACL 0x08
  84
  85 #define NFS4_ACE_FILE_INHERIT_ACE             0x00000001
  86 #define NFS4_ACE_DIRECTORY_INHERIT_ACE        0x00000002
  87 #define NFS4_ACE_NO_PROPAGATE_INHERIT_ACE     0x00000004
  88 #define NFS4_ACE_INHERIT_ONLY_ACE             0x00000008
  89 #define NFS4_ACE_SUCCESSFUL_ACCESS_ACE_FLAG   0x00000010
  90 #define NFS4_ACE_FAILED_ACCESS_ACE_FLAG       0x00000020
  91 #define NFS4_ACE_IDENTIFIER_GROUP             0x00000040
  92
  93 #define NFS4_ACE_READ_DATA                    0x00000001
  94 #define NFS4_ACE_LIST_DIRECTORY               0x00000001
  95 #define NFS4_ACE_WRITE_DATA                   0x00000002
  96 #define NFS4_ACE_ADD_FILE                     0x00000002
  97 #define NFS4_ACE_APPEND_DATA                  0x00000004
  98 #define NFS4_ACE_ADD_SUBDIRECTORY             0x00000004
  99 #define NFS4_ACE_READ_NAMED_ATTRS             0x00000008
 100 #define NFS4_ACE_WRITE_NAMED_ATTRS            0x00000010
 101 #define NFS4_ACE_EXECUTE                      0x00000020
 102 #define NFS4_ACE_DELETE_CHILD                 0x00000040
 103 #define NFS4_ACE_READ_ATTRIBUTES              0x00000080
 104 #define NFS4_ACE_WRITE_ATTRIBUTES             0x00000100
 105 #define NFS4_ACE_DELETE                       0x00010000
 106 #define NFS4_ACE_READ_ACL                     0x00020000
 107 #define NFS4_ACE_WRITE_ACL                    0x00040000
 108 #define NFS4_ACE_WRITE_OWNER                  0x00080000
 109 #define NFS4_ACE_SYNCHRONIZE                  0x00100000
 110 #define NFS4_ACE_GENERIC_READ                 0x00120081
 111 #define NFS4_ACE_GENERIC_WRITE                0x00160106
 112 #define NFS4_ACE_GENERIC_EXECUTE              0x001200A0
 113 #define NFS4_ACE_MASK_ALL                     0x001F01FF
 114
 115 #define EXCHGID4_FLAG_SUPP_MOVED_REFER          0x00000001
 116 #define EXCHGID4_FLAG_SUPP_MOVED_MIGR           0x00000002
 117 #define EXCHGID4_FLAG_BIND_PRINC_STATEID        0x00000100
 118
 119 #define EXCHGID4_FLAG_USE_NON_PNFS              0x00010000
 120 #define EXCHGID4_FLAG_USE_PNFS_MDS              0x00020000
 121 #define EXCHGID4_FLAG_USE_PNFS_DS               0x00040000
 122 #define EXCHGID4_FLAG_MASK_PNFS                 0x00070000
 123
 124 #define EXCHGID4_FLAG_UPD_CONFIRMED_REC_A       0x40000000
 125 #define EXCHGID4_FLAG_CONFIRMED_R               0x80000000
 126 /*
 127  * Since the validity of these bits depends on whether
 128  * they're set in the argument or response, have separate
 129  * invalid flag masks for arg (_A) and resp (_R).
 130  */
 131 #define EXCHGID4_FLAG_MASK_A                    0x40070103
 132 #define EXCHGID4_FLAG_MASK_R                    0x80070103
 133
 134 #define SEQ4_STATUS_CB_PATH_DOWN                0x00000001
 135 #define SEQ4_STATUS_CB_GSS_CONTEXTS_EXPIRING    0x00000002
 136 #define SEQ4_STATUS_CB_GSS_CONTEXTS_EXPIRED     0x00000004
 137 #define SEQ4_STATUS_EXPIRED_ALL_STATE_REVOKED   0x00000008
 138 #define SEQ4_STATUS_EXPIRED_SOME_STATE_REVOKED  0x00000010
 139 #define SEQ4_STATUS_ADMIN_STATE_REVOKED         0x00000020
 140 #define SEQ4_STATUS_RECALLABLE_STATE_REVOKED    0x00000040
 141 #define SEQ4_STATUS_LEASE_MOVED                 0x00000080
 142 #define SEQ4_STATUS_RESTART_RECLAIM_NEEDED      0x00000100
 143 #define SEQ4_STATUS_CB_PATH_DOWN_SESSION        0x00000200
 144 #define SEQ4_STATUS_BACKCHANNEL_FAULT           0x00000400
 145
 146 #define NFS4_SECINFO_STYLE4_CURRENT_FH  0
 147 #define NFS4_SECINFO_STYLE4_PARENT      1
 148
 149 #define NFS4_MAX_UINT64 (~(u64)0)
 150
 151 /* An NFS4 sessions server must support at least NFS4_MAX_OPS operations.
 152  * If a compound requires more operations, adjust NFS4_MAX_OPS accordingly.
 153  */
 154 #define NFS4_MAX_OPS   8
 155
 156 /* Our NFS4 client back channel server only wants the cb_sequene and the
 157  * actual operation per compound
 158  */
 159 #define NFS4_MAX_BACK_CHANNEL_OPS 2
 160
 161 enum nfs4_acl_whotype {
 162         NFS4_ACL_WHO_NAMED = 0,
 163         NFS4_ACL_WHO_OWNER,
 164         NFS4_ACL_WHO_GROUP,
 165         NFS4_ACL_WHO_EVERYONE,
 166 };
 167
 168 #ifdef __KERNEL__
 169 #include <linux/list.h>
 170
 171 struct nfs4_ace {
 172         uint32_t        type;
 173         uint32_t        flag;
 174         uint32_t        access_mask;
 175         int             whotype;
 176         uid_t           who;
 177 };
 178
 179 struct nfs4_acl {
 180         uint32_t        naces;
 181         struct nfs4_ace aces[0];
 182 };
 183
 184 typedef struct { char data[NFS4_VERIFIER_SIZE]; } nfs4_verifier;
 185
 186 struct nfs41_stateid {
 187         __be32 seqid;
 188         char other[NFS4_STATEID_OTHER_SIZE];
 189 } __attribute__ ((packed));
 190
 191 typedef union {
 192         char data[NFS4_STATEID_SIZE];
 193         struct nfs41_stateid stateid;
 194 } nfs4_stateid;
 195
 196 enum nfs_opnum4 {
 197         OP_ACCESS = 3,
 198         OP_CLOSE = 4,
 199         OP_COMMIT = 5,
 200         OP_CREATE = 6,
 201         OP_DELEGPURGE = 7,
 202         OP_DELEGRETURN = 8,
 203         OP_GETATTR = 9,
 204         OP_GETFH = 10,
 205         OP_LINK = 11,
 206         OP_LOCK = 12,
 207         OP_LOCKT = 13,
 208         OP_LOCKU = 14,
 209         OP_LOOKUP = 15,
 210         OP_LOOKUPP = 16,
 211         OP_NVERIFY = 17,
 212         OP_OPEN = 18,
 213         OP_OPENATTR = 19,
 214         OP_OPEN_CONFIRM = 20,
 215         OP_OPEN_DOWNGRADE = 21,
 216         OP_PUTFH = 22,
 217         OP_PUTPUBFH = 23,
 218         OP_PUTROOTFH = 24,
 219         OP_READ = 25,
 220         OP_READDIR = 26,
 221         OP_READLINK = 27,
 222         OP_REMOVE = 28,
 223         OP_RENAME = 29,
 224         OP_RENEW = 30,
 225         OP_RESTOREFH = 31,
 226         OP_SAVEFH = 32,
 227         OP_SECINFO = 33,
 228         OP_SETATTR = 34,
 229         OP_SETCLIENTID = 35,
 230         OP_SETCLIENTID_CONFIRM = 36,
 231         OP_VERIFY = 37,
 232         OP_WRITE = 38,
 233         OP_RELEASE_LOCKOWNER = 39,
 234
 235         /* nfs41 */
 236         OP_BACKCHANNEL_CTL = 40,
 237         OP_BIND_CONN_TO_SESSION = 41,
 238         OP_EXCHANGE_ID = 42,
 239         OP_CREATE_SESSION = 43,
 240         OP_DESTROY_SESSION = 44,
 241         OP_FREE_STATEID = 45,
 242         OP_GET_DIR_DELEGATION = 46,
 243         OP_GETDEVICEINFO = 47,
 244         OP_GETDEVICELIST = 48,
 245         OP_LAYOUTCOMMIT = 49,
 246         OP_LAYOUTGET = 50,
 247         OP_LAYOUTRETURN = 51,
 248         OP_SECINFO_NO_NAME = 52,
 249         OP_SEQUENCE = 53,
 250         OP_SET_SSV = 54,
 251         OP_TEST_STATEID = 55,
 252         OP_WANT_DELEGATION = 56,
 253         OP_DESTROY_CLIENTID = 57,
 254         OP_RECLAIM_COMPLETE = 58,
 255
 256         OP_ILLEGAL = 10044,
 257 };
 258
 259 /*Defining first and last NFS4 operations implemented.
 260 Needs to be updated if more operations are defined in future.*/
 261
 262 #define FIRST_NFS4_OP   OP_ACCESS
 263 #define LAST_NFS4_OP    OP_RECLAIM_COMPLETE
 264
 265 enum nfsstat4 {
 266         NFS4_OK = 0,
 267         NFS4ERR_PERM = 1,
 268         NFS4ERR_NOENT = 2,
 269         NFS4ERR_IO = 5,
 270         NFS4ERR_NXIO = 6,
 271         NFS4ERR_ACCESS = 13,
 272         NFS4ERR_EXIST = 17,
 273         NFS4ERR_XDEV = 18,
 274         /* Unused/reserved 19 */
 275         NFS4ERR_NOTDIR = 20,
 276         NFS4ERR_ISDIR = 21,
 277         NFS4ERR_INVAL = 22,
 278         NFS4ERR_FBIG = 27,
 279         NFS4ERR_NOSPC = 28,
 280         NFS4ERR_ROFS = 30,
 281         NFS4ERR_MLINK = 31,
 282         NFS4ERR_NAMETOOLONG = 63,
 283         NFS4ERR_NOTEMPTY = 66,
 284         NFS4ERR_DQUOT = 69,
 285         NFS4ERR_STALE = 70,
 286         NFS4ERR_BADHANDLE = 10001,
 287         NFS4ERR_BAD_COOKIE = 10003,
 288         NFS4ERR_NOTSUPP = 10004,
 289         NFS4ERR_TOOSMALL = 10005,
 290         NFS4ERR_SERVERFAULT = 10006,
 291         NFS4ERR_BADTYPE = 10007,
 292         NFS4ERR_DELAY = 10008,
 293         NFS4ERR_SAME = 10009,
 294         NFS4ERR_DENIED = 10010,
 295         NFS4ERR_EXPIRED = 10011,
 296         NFS4ERR_LOCKED = 10012,
 297         NFS4ERR_GRACE = 10013,
 298         NFS4ERR_FHEXPIRED = 10014,
 299         NFS4ERR_SHARE_DENIED = 10015,
 300         NFS4ERR_WRONGSEC = 10016,
 301         NFS4ERR_CLID_INUSE = 10017,
 302         NFS4ERR_RESOURCE = 10018,
 303         NFS4ERR_MOVED = 10019,
 304         NFS4ERR_NOFILEHANDLE = 10020,
 305         NFS4ERR_MINOR_VERS_MISMATCH = 10021,
 306         NFS4ERR_STALE_CLIENTID = 10022,
 307         NFS4ERR_STALE_STATEID = 10023,
 308         NFS4ERR_OLD_STATEID = 10024,
 309         NFS4ERR_BAD_STATEID = 10025,
 310         NFS4ERR_BAD_SEQID = 10026,
 311         NFS4ERR_NOT_SAME = 10027,
 312         NFS4ERR_LOCK_RANGE = 10028,
 313         NFS4ERR_SYMLINK = 10029,
 314         NFS4ERR_RESTOREFH = 10030,
 315         NFS4ERR_LEASE_MOVED = 10031,
 316         NFS4ERR_ATTRNOTSUPP = 10032,
 317         NFS4ERR_NO_GRACE = 10033,
 318         NFS4ERR_RECLAIM_BAD = 10034,
 319         NFS4ERR_RECLAIM_CONFLICT = 10035,
 320         NFS4ERR_BADXDR = 10036,
 321         NFS4ERR_LOCKS_HELD = 10037,
 322         NFS4ERR_OPENMODE = 10038,
 323         NFS4ERR_BADOWNER = 10039,
 324         NFS4ERR_BADCHAR = 10040,
 325         NFS4ERR_BADNAME = 10041,
 326         NFS4ERR_BAD_RANGE = 10042,
 327         NFS4ERR_LOCK_NOTSUPP = 10043,
 328         NFS4ERR_OP_ILLEGAL = 10044,
 329         NFS4ERR_DEADLOCK = 10045,
 330         NFS4ERR_FILE_OPEN = 10046,
 331         NFS4ERR_ADMIN_REVOKED = 10047,
 332         NFS4ERR_CB_PATH_DOWN = 10048,
 333
 334         /* nfs41 */
 335         NFS4ERR_BADIOMODE       = 10049,
 336         NFS4ERR_BADLAYOUT       = 10050,
 337         NFS4ERR_BAD_SESSION_DIGEST = 10051,
 338         NFS4ERR_BADSESSION      = 10052,
 339         NFS4ERR_BADSLOT         = 10053,
 340         NFS4ERR_COMPLETE_ALREADY = 10054,
 341         NFS4ERR_CONN_NOT_BOUND_TO_SESSION = 10055,
 342         NFS4ERR_DELEG_ALREADY_WANTED = 10056,
 343         NFS4ERR_BACK_CHAN_BUSY  = 10057,        /* backchan reqs outstanding */
 344         NFS4ERR_LAYOUTTRYLATER  = 10058,
 345         NFS4ERR_LAYOUTUNAVAILABLE = 10059,
 346         NFS4ERR_NOMATCHING_LAYOUT = 10060,
 347         NFS4ERR_RECALLCONFLICT  = 10061,
 348         NFS4ERR_UNKNOWN_LAYOUTTYPE = 10062,
 349         NFS4ERR_SEQ_MISORDERED = 10063,         /* unexpected seq.id in req */
 350         NFS4ERR_SEQUENCE_POS    = 10064,        /* [CB_]SEQ. op not 1st op */
 351         NFS4ERR_REQ_TOO_BIG     = 10065,        /* request too big */
 352         NFS4ERR_REP_TOO_BIG     = 10066,        /* reply too big */
 353         NFS4ERR_REP_TOO_BIG_TO_CACHE = 10067,   /* rep. not all cached */
 354         NFS4ERR_RETRY_UNCACHED_REP = 10068,     /* retry & rep. uncached */
 355         NFS4ERR_UNSAFE_COMPOUND = 10069,        /* retry/recovery too hard */
 356         NFS4ERR_TOO_MANY_OPS    = 10070,        /* too many ops in [CB_]COMP */
 357         NFS4ERR_OP_NOT_IN_SESSION = 10071,      /* op needs [CB_]SEQ. op */
 358         NFS4ERR_HASH_ALG_UNSUPP = 10072,        /* hash alg. not supp. */
 359                                                 /* Error 10073 is unused. */
 360         NFS4ERR_CLIENTID_BUSY   = 10074,        /* clientid has state */
 361         NFS4ERR_PNFS_IO_HOLE    = 10075,        /* IO to _SPARSE file hole */
 362         NFS4ERR_SEQ_FALSE_RETRY = 10076,        /* retry not original */
 363         NFS4ERR_BAD_HIGH_SLOT   = 10077,        /* sequence arg bad */
 364         NFS4ERR_DEADSESSION     = 10078,        /* persistent session dead */
 365         NFS4ERR_ENCR_ALG_UNSUPP = 10079,        /* SSV alg mismatch */
 366         NFS4ERR_PNFS_NO_LAYOUT  = 10080,        /* direct I/O with no layout */
 367         NFS4ERR_NOT_ONLY_OP     = 10081,        /* bad compound */
 368         NFS4ERR_WRONG_CRED      = 10082,        /* permissions:state change */
 369         NFS4ERR_WRONG_TYPE      = 10083,        /* current operation mismatch */
 370         NFS4ERR_DIRDELEG_UNAVAIL = 10084,       /* no directory delegation */
 371         NFS4ERR_REJECT_DELEG    = 10085,        /* on callback */
 372         NFS4ERR_RETURNCONFLICT  = 10086,        /* outstanding layoutreturn */
 373         NFS4ERR_DELEG_REVOKED   = 10087,        /* deleg./layout revoked */
 374 };
 375
 376 static inline bool seqid_mutating_err(u32 err)
 377 {
 378         /* rfc 3530 section 8.1.5: */
 379         switch (err) {
 380         case NFS4ERR_STALE_CLIENTID:
 381         case NFS4ERR_STALE_STATEID:
 382         case NFS4ERR_BAD_STATEID:
 383         case NFS4ERR_BAD_SEQID:
 384         case NFS4ERR_BADXDR:
 385         case NFS4ERR_RESOURCE:
 386         case NFS4ERR_NOFILEHANDLE:
 387                 return false;
 388         };
 389         return true;
 390 }
 391
 392 /*
 393  * Note: NF4BAD is not actually part of the protocol; it is just used
 394  * internally by nfsd.
 395  */
 396 enum nfs_ftype4 {
 397         NF4BAD          = 0,
 398         NF4REG          = 1,    /* Regular File */
 399         NF4DIR          = 2,    /* Directory */
 400         NF4BLK          = 3,    /* Special File - block device */
 401         NF4CHR          = 4,    /* Special File - character device */
 402         NF4LNK          = 5,    /* Symbolic Link */
 403         NF4SOCK         = 6,    /* Special File - socket */
 404         NF4FIFO         = 7,    /* Special File - fifo */
 405         NF4ATTRDIR      = 8,    /* Attribute Directory */
 406         NF4NAMEDATTR    = 9     /* Named Attribute */
 407 };
 408
 409 enum open_claim_type4 {
 410         NFS4_OPEN_CLAIM_NULL = 0,
 411         NFS4_OPEN_CLAIM_PREVIOUS = 1,
 412         NFS4_OPEN_CLAIM_DELEGATE_CUR = 2,
 413         NFS4_OPEN_CLAIM_DELEGATE_PREV = 3,
 414         NFS4_OPEN_CLAIM_FH = 4, /* 4.1 */
 415         NFS4_OPEN_CLAIM_DELEG_CUR_FH = 5, /* 4.1 */
 416         NFS4_OPEN_CLAIM_DELEG_PREV_FH = 6, /* 4.1 */
 417 };
 418
 419 enum opentype4 {
 420         NFS4_OPEN_NOCREATE = 0,
 421         NFS4_OPEN_CREATE = 1
 422 };
 423
 424 enum createmode4 {
 425         NFS4_CREATE_UNCHECKED = 0,
 426         NFS4_CREATE_GUARDED = 1,
 427         NFS4_CREATE_EXCLUSIVE = 2,
 428         /*
 429          * New to NFSv4.1. If session is persistent,
 430          * GUARDED4 MUST be used. Otherwise, use
 431          * EXCLUSIVE4_1 instead of EXCLUSIVE4.
 432          */
 433         NFS4_CREATE_EXCLUSIVE4_1 = 3
 434 };
 435
 436 enum limit_by4 {
 437         NFS4_LIMIT_SIZE = 1,
 438         NFS4_LIMIT_BLOCKS = 2
 439 };
 440
 441 enum open_delegation_type4 {
 442         NFS4_OPEN_DELEGATE_NONE = 0,
 443         NFS4_OPEN_DELEGATE_READ = 1,
 444         NFS4_OPEN_DELEGATE_WRITE = 2
 445 };
 446
 447 enum lock_type4 {
 448         NFS4_UNLOCK_LT = 0,
 449         NFS4_READ_LT = 1,
 450         NFS4_WRITE_LT = 2,
 451         NFS4_READW_LT = 3,
 452         NFS4_WRITEW_LT = 4
 453 };
 454
 455
 456 /* Mandatory Attributes */
 457 #define FATTR4_WORD0_SUPPORTED_ATTRS    (1UL << 0)
 458 #define FATTR4_WORD0_TYPE               (1UL << 1)
 459 #define FATTR4_WORD0_FH_EXPIRE_TYPE     (1UL << 2)
 460 #define FATTR4_WORD0_CHANGE             (1UL << 3)
 461 #define FATTR4_WORD0_SIZE               (1UL << 4)
 462 #define FATTR4_WORD0_LINK_SUPPORT       (1UL << 5)
 463 #define FATTR4_WORD0_SYMLINK_SUPPORT    (1UL << 6)
 464 #define FATTR4_WORD0_NAMED_ATTR         (1UL << 7)
 465 #define FATTR4_WORD0_FSID               (1UL << 8)
 466 #define FATTR4_WORD0_UNIQUE_HANDLES     (1UL << 9)
 467 #define FATTR4_WORD0_LEASE_TIME         (1UL << 10)
 468 #define FATTR4_WORD0_RDATTR_ERROR       (1UL << 11)
 469 /* Mandatory in NFSv4.1 */
 470 #define FATTR4_WORD2_SUPPATTR_EXCLCREAT (1UL << 11)
 471
 472 /* Recommended Attributes */
 473 #define FATTR4_WORD0_ACL                (1UL << 12)
 474 #define FATTR4_WORD0_ACLSUPPORT         (1UL << 13)
 475 #define FATTR4_WORD0_ARCHIVE            (1UL << 14)
 476 #define FATTR4_WORD0_CANSETTIME         (1UL << 15)
 477 #define FATTR4_WORD0_CASE_INSENSITIVE   (1UL << 16)
 478 #define FATTR4_WORD0_CASE_PRESERVING    (1UL << 17)
 479 #define FATTR4_WORD0_CHOWN_RESTRICTED   (1UL << 18)
 480 #define FATTR4_WORD0_FILEHANDLE         (1UL << 19)
 481 #define FATTR4_WORD0_FILEID             (1UL << 20)
 482 #define FATTR4_WORD0_FILES_AVAIL        (1UL << 21)
 483 #define FATTR4_WORD0_FILES_FREE         (1UL << 22)
 484 #define FATTR4_WORD0_FILES_TOTAL        (1UL << 23)
 485 #define FATTR4_WORD0_FS_LOCATIONS       (1UL << 24)
 486 #define FATTR4_WORD0_HIDDEN             (1UL << 25)
 487 #define FATTR4_WORD0_HOMOGENEOUS        (1UL << 26)
 488 #define FATTR4_WORD0_MAXFILESIZE        (1UL << 27)
 489 #define FATTR4_WORD0_MAXLINK            (1UL << 28)
 490 #define FATTR4_WORD0_MAXNAME            (1UL << 29)
 491 #define FATTR4_WORD0_MAXREAD            (1UL << 30)
 492 #define FATTR4_WORD0_MAXWRITE           (1UL << 31)
 493 #define FATTR4_WORD1_MIMETYPE           (1UL << 0)
 494 #define FATTR4_WORD1_MODE               (1UL << 1)
 495 #define FATTR4_WORD1_NO_TRUNC           (1UL << 2)
 496 #define FATTR4_WORD1_NUMLINKS           (1UL << 3)
 497 #define FATTR4_WORD1_OWNER              (1UL << 4)
 498 #define FATTR4_WORD1_OWNER_GROUP        (1UL << 5)
 499 #define FATTR4_WORD1_QUOTA_HARD         (1UL << 6)
 500 #define FATTR4_WORD1_QUOTA_SOFT         (1UL << 7)
 501 #define FATTR4_WORD1_QUOTA_USED         (1UL << 8)
 502 #define FATTR4_WORD1_RAWDEV             (1UL << 9)
 503 #define FATTR4_WORD1_SPACE_AVAIL        (1UL << 10)
 504 #define FATTR4_WORD1_SPACE_FREE         (1UL << 11)
 505 #define FATTR4_WORD1_SPACE_TOTAL        (1UL << 12)
 506 #define FATTR4_WORD1_SPACE_USED         (1UL << 13)
 507 #define FATTR4_WORD1_SYSTEM             (1UL << 14)
 508 #define FATTR4_WORD1_TIME_ACCESS        (1UL << 15)
 509 #define FATTR4_WORD1_TIME_ACCESS_SET    (1UL << 16)
 510 #define FATTR4_WORD1_TIME_BACKUP        (1UL << 17)
 511 #define FATTR4_WORD1_TIME_CREATE        (1UL << 18)
 512 #define FATTR4_WORD1_TIME_DELTA         (1UL << 19)
 513 #define FATTR4_WORD1_TIME_METADATA      (1UL << 20)
 514 #define FATTR4_WORD1_TIME_MODIFY        (1UL << 21)
 515 #define FATTR4_WORD1_TIME_MODIFY_SET    (1UL << 22)
 516 #define FATTR4_WORD1_MOUNTED_ON_FILEID  (1UL << 23)
 517 #define FATTR4_WORD1_FS_LAYOUT_TYPES    (1UL << 30)
 518 #define FATTR4_WORD2_LAYOUT_BLKSIZE     (1UL << 1)
 519
 520 #define NFSPROC4_NULL 0
 521 #define NFSPROC4_COMPOUND 1
 522 #define NFS4_VERSION 4
 523 #define NFS4_MINOR_VERSION 0
 524
 525 #if defined(CONFIG_NFS_V4_1)
 526 #define NFS4_MAX_MINOR_VERSION 1
 527 #else
 528 #define NFS4_MAX_MINOR_VERSION 0
 529 #endif /* CONFIG_NFS_V4_1 */
 530
 531 #define NFS4_DEBUG 1
 532
 533 /* Index of predefined Linux client operations */
 534
 535 enum {
 536         NFSPROC4_CLNT_NULL = 0,         /* Unused */
 537         NFSPROC4_CLNT_READ,
 538         NFSPROC4_CLNT_WRITE,
 539         NFSPROC4_CLNT_COMMIT,
 540         NFSPROC4_CLNT_OPEN,
 541         NFSPROC4_CLNT_OPEN_CONFIRM,
 542         NFSPROC4_CLNT_OPEN_NOATTR,
 543         NFSPROC4_CLNT_OPEN_DOWNGRADE,
 544         NFSPROC4_CLNT_CLOSE,
 545         NFSPROC4_CLNT_SETATTR,
 546         NFSPROC4_CLNT_FSINFO,
 547         NFSPROC4_CLNT_RENEW,
 548         NFSPROC4_CLNT_SETCLIENTID,
 549         NFSPROC4_CLNT_SETCLIENTID_CONFIRM,
 550         NFSPROC4_CLNT_LOCK,
 551         NFSPROC4_CLNT_LOCKT,
 552         NFSPROC4_CLNT_LOCKU,
 553         NFSPROC4_CLNT_ACCESS,
 554         NFSPROC4_CLNT_GETATTR,
 555         NFSPROC4_CLNT_LOOKUP,
 556         NFSPROC4_CLNT_LOOKUP_ROOT,
 557         NFSPROC4_CLNT_REMOVE,
 558         NFSPROC4_CLNT_RENAME,
 559         NFSPROC4_CLNT_LINK,
 560         NFSPROC4_CLNT_SYMLINK,
 561         NFSPROC4_CLNT_CREATE,
 562         NFSPROC4_CLNT_PATHCONF,
 563         NFSPROC4_CLNT_STATFS,
 564         NFSPROC4_CLNT_READLINK,
 565         NFSPROC4_CLNT_READDIR,
 566         NFSPROC4_CLNT_SERVER_CAPS,
 567         NFSPROC4_CLNT_DELEGRETURN,
 568         NFSPROC4_CLNT_GETACL,
 569         NFSPROC4_CLNT_SETACL,
 570         NFSPROC4_CLNT_FS_LOCATIONS,
 571         NFSPROC4_CLNT_RELEASE_LOCKOWNER,
 572         NFSPROC4_CLNT_SECINFO,
 573
 574         /* nfs41 */
 575         NFSPROC4_CLNT_EXCHANGE_ID,
 576         NFSPROC4_CLNT_CREATE_SESSION,
 577         NFSPROC4_CLNT_DESTROY_SESSION,
 578         NFSPROC4_CLNT_SEQUENCE,
 579         NFSPROC4_CLNT_GET_LEASE_TIME,
 580         NFSPROC4_CLNT_RECLAIM_COMPLETE,
 581         NFSPROC4_CLNT_LAYOUTGET,
 582         NFSPROC4_CLNT_GETDEVICEINFO,
 583         NFSPROC4_CLNT_LAYOUTCOMMIT,
 584         NFSPROC4_CLNT_LAYOUTRETURN,
 585         NFSPROC4_CLNT_SECINFO_NO_NAME,
 586         NFSPROC4_CLNT_TEST_STATEID,
 587         NFSPROC4_CLNT_FREE_STATEID,
 588         NFSPROC4_CLNT_GETDEVICELIST,
 589 };
 590
 591 /* nfs41 types */
 592 struct nfs4_sessionid {
 593         unsigned char data[NFS4_MAX_SESSIONID_LEN];
 594 };
 595
 596 /* Create Session Flags */
 597 #define SESSION4_PERSIST        0x001
 598 #define SESSION4_BACK_CHAN      0x002
 599 #define SESSION4_RDMA           0x004
 600
 601 #define SESSION4_FLAG_MASK_A    0x007
 602
 603 enum state_protect_how4 {
 604         SP4_NONE        = 0,
 605         SP4_MACH_CRED   = 1,
 606         SP4_SSV         = 2
 607 };
 608
 609 enum pnfs_layouttype {
 610         LAYOUT_NFSV4_1_FILES  = 1,
 611         LAYOUT_OSD2_OBJECTS = 2,
 612         LAYOUT_BLOCK_VOLUME = 3,
 613 };
 614
 615 /* used for both layout return and recall */
 616 enum pnfs_layoutreturn_type {
 617         RETURN_FILE = 1,
 618         RETURN_FSID = 2,
 619         RETURN_ALL  = 3
 620 };
 621
 622 enum pnfs_iomode {
 623         IOMODE_READ = 1,
 624         IOMODE_RW = 2,
 625         IOMODE_ANY = 3,
 626 };
 627
 628 enum pnfs_notify_deviceid_type4 {
 629         NOTIFY_DEVICEID4_CHANGE = 1 << 1,
 630         NOTIFY_DEVICEID4_DELETE = 1 << 2,
 631 };
 632
 633 #define NFL4_UFLG_MASK                  0x0000003F
 634 #define NFL4_UFLG_DENSE                 0x00000001
 635 #define NFL4_UFLG_COMMIT_THRU_MDS       0x00000002
 636 #define NFL4_UFLG_STRIPE_UNIT_SIZE_MASK 0xFFFFFFC0
 637
 638 /* Encoded in the loh_body field of type layouthint4 */
 639 enum filelayout_hint_care4 {
 640         NFLH4_CARE_DENSE                = NFL4_UFLG_DENSE,
 641         NFLH4_CARE_COMMIT_THRU_MDS      = NFL4_UFLG_COMMIT_THRU_MDS,
 642         NFLH4_CARE_STRIPE_UNIT_SIZE     = 0x00000040,
 643         NFLH4_CARE_STRIPE_COUNT         = 0x00000080
 644 };
 645
 646 #define NFS4_DEVICEID4_SIZE 16
 647
 648 struct nfs4_deviceid {
 649         char data[NFS4_DEVICEID4_SIZE];
 650 };
 651
 652 #endif
 653 #endif
 654
 655 /*
 656  * Local variables:
 657  *  c-basic-offset: 8
 658  * End:
 659  */