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 <[email protected]> 10 * Andy Adamson <[email protected]> 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 #define NFS4_MAXLABELLEN 2048 36 37 struct nfs4_label { 38 uint32_t lfs; 39 uint32_t pi; 40 u32 len; 41 char *label; 42 }; 43 44 typedef struct { char data[NFS4_VERIFIER_SIZE]; } nfs4_verifier; 45 46 struct nfs_stateid4 { 47 __be32 seqid; 48 char other[NFS4_STATEID_OTHER_SIZE]; 49 } __attribute__ ((packed)); 50 51 typedef struct nfs_stateid4 nfs4_stateid; 52 53 enum nfs_opnum4 { 54 OP_ACCESS = 3, 55 OP_CLOSE = 4, 56 OP_COMMIT = 5, 57 OP_CREATE = 6, 58 OP_DELEGPURGE = 7, 59 OP_DELEGRETURN = 8, 60 OP_GETATTR = 9, 61 OP_GETFH = 10, 62 OP_LINK = 11, 63 OP_LOCK = 12, 64 OP_LOCKT = 13, 65 OP_LOCKU = 14, 66 OP_LOOKUP = 15, 67 OP_LOOKUPP = 16, 68 OP_NVERIFY = 17, 69 OP_OPEN = 18, 70 OP_OPENATTR = 19, 71 OP_OPEN_CONFIRM = 20, 72 OP_OPEN_DOWNGRADE = 21, 73 OP_PUTFH = 22, 74 OP_PUTPUBFH = 23, 75 OP_PUTROOTFH = 24, 76 OP_READ = 25, 77 OP_READDIR = 26, 78 OP_READLINK = 27, 79 OP_REMOVE = 28, 80 OP_RENAME = 29, 81 OP_RENEW = 30, 82 OP_RESTOREFH = 31, 83 OP_SAVEFH = 32, 84 OP_SECINFO = 33, 85 OP_SETATTR = 34, 86 OP_SETCLIENTID = 35, 87 OP_SETCLIENTID_CONFIRM = 36, 88 OP_VERIFY = 37, 89 OP_WRITE = 38, 90 OP_RELEASE_LOCKOWNER = 39, 91 92 /* nfs41 */ 93 OP_BACKCHANNEL_CTL = 40, 94 OP_BIND_CONN_TO_SESSION = 41, 95 OP_EXCHANGE_ID = 42, 96 OP_CREATE_SESSION = 43, 97 OP_DESTROY_SESSION = 44, 98 OP_FREE_STATEID = 45, 99 OP_GET_DIR_DELEGATION = 46, 100 OP_GETDEVICEINFO = 47, 101 OP_GETDEVICELIST = 48, 102 OP_LAYOUTCOMMIT = 49, 103 OP_LAYOUTGET = 50, 104 OP_LAYOUTRETURN = 51, 105 OP_SECINFO_NO_NAME = 52, 106 OP_SEQUENCE = 53, 107 OP_SET_SSV = 54, 108 OP_TEST_STATEID = 55, 109 OP_WANT_DELEGATION = 56, 110 OP_DESTROY_CLIENTID = 57, 111 OP_RECLAIM_COMPLETE = 58, 112 113 OP_ILLEGAL = 10044, 114 }; 115 116 /*Defining first and last NFS4 operations implemented. 117 Needs to be updated if more operations are defined in future.*/ 118 119 #define FIRST_NFS4_OP OP_ACCESS 120 #define LAST_NFS4_OP OP_RECLAIM_COMPLETE 121 #define LAST_NFS40_OP OP_RELEASE_LOCKOWNER 122 #define LAST_NFS41_OP OP_RECLAIM_COMPLETE 123 #define LAST_NFS42_OP OP_RECLAIM_COMPLETE 124 125 enum nfsstat4 { 126 NFS4_OK = 0, 127 NFS4ERR_PERM = 1, 128 NFS4ERR_NOENT = 2, 129 NFS4ERR_IO = 5, 130 NFS4ERR_NXIO = 6, 131 NFS4ERR_ACCESS = 13, 132 NFS4ERR_EXIST = 17, 133 NFS4ERR_XDEV = 18, 134 /* Unused/reserved 19 */ 135 NFS4ERR_NOTDIR = 20, 136 NFS4ERR_ISDIR = 21, 137 NFS4ERR_INVAL = 22, 138 NFS4ERR_FBIG = 27, 139 NFS4ERR_NOSPC = 28, 140 NFS4ERR_ROFS = 30, 141 NFS4ERR_MLINK = 31, 142 NFS4ERR_NAMETOOLONG = 63, 143 NFS4ERR_NOTEMPTY = 66, 144 NFS4ERR_DQUOT = 69, 145 NFS4ERR_STALE = 70, 146 NFS4ERR_BADHANDLE = 10001, 147 NFS4ERR_BAD_COOKIE = 10003, 148 NFS4ERR_NOTSUPP = 10004, 149 NFS4ERR_TOOSMALL = 10005, 150 NFS4ERR_SERVERFAULT = 10006, 151 NFS4ERR_BADTYPE = 10007, 152 NFS4ERR_DELAY = 10008, 153 NFS4ERR_SAME = 10009, 154 NFS4ERR_DENIED = 10010, 155 NFS4ERR_EXPIRED = 10011, 156 NFS4ERR_LOCKED = 10012, 157 NFS4ERR_GRACE = 10013, 158 NFS4ERR_FHEXPIRED = 10014, 159 NFS4ERR_SHARE_DENIED = 10015, 160 NFS4ERR_WRONGSEC = 10016, 161 NFS4ERR_CLID_INUSE = 10017, 162 NFS4ERR_RESOURCE = 10018, 163 NFS4ERR_MOVED = 10019, 164 NFS4ERR_NOFILEHANDLE = 10020, 165 NFS4ERR_MINOR_VERS_MISMATCH = 10021, 166 NFS4ERR_STALE_CLIENTID = 10022, 167 NFS4ERR_STALE_STATEID = 10023, 168 NFS4ERR_OLD_STATEID = 10024, 169 NFS4ERR_BAD_STATEID = 10025, 170 NFS4ERR_BAD_SEQID = 10026, 171 NFS4ERR_NOT_SAME = 10027, 172 NFS4ERR_LOCK_RANGE = 10028, 173 NFS4ERR_SYMLINK = 10029, 174 NFS4ERR_RESTOREFH = 10030, 175 NFS4ERR_LEASE_MOVED = 10031, 176 NFS4ERR_ATTRNOTSUPP = 10032, 177 NFS4ERR_NO_GRACE = 10033, 178 NFS4ERR_RECLAIM_BAD = 10034, 179 NFS4ERR_RECLAIM_CONFLICT = 10035, 180 NFS4ERR_BADXDR = 10036, 181 NFS4ERR_LOCKS_HELD = 10037, 182 NFS4ERR_OPENMODE = 10038, 183 NFS4ERR_BADOWNER = 10039, 184 NFS4ERR_BADCHAR = 10040, 185 NFS4ERR_BADNAME = 10041, 186 NFS4ERR_BAD_RANGE = 10042, 187 NFS4ERR_LOCK_NOTSUPP = 10043, 188 NFS4ERR_OP_ILLEGAL = 10044, 189 NFS4ERR_DEADLOCK = 10045, 190 NFS4ERR_FILE_OPEN = 10046, 191 NFS4ERR_ADMIN_REVOKED = 10047, 192 NFS4ERR_CB_PATH_DOWN = 10048, 193 194 /* nfs41 */ 195 NFS4ERR_BADIOMODE = 10049, 196 NFS4ERR_BADLAYOUT = 10050, 197 NFS4ERR_BAD_SESSION_DIGEST = 10051, 198 NFS4ERR_BADSESSION = 10052, 199 NFS4ERR_BADSLOT = 10053, 200 NFS4ERR_COMPLETE_ALREADY = 10054, 201 NFS4ERR_CONN_NOT_BOUND_TO_SESSION = 10055, 202 NFS4ERR_DELEG_ALREADY_WANTED = 10056, 203 NFS4ERR_BACK_CHAN_BUSY = 10057, /* backchan reqs outstanding */ 204 NFS4ERR_LAYOUTTRYLATER = 10058, 205 NFS4ERR_LAYOUTUNAVAILABLE = 10059, 206 NFS4ERR_NOMATCHING_LAYOUT = 10060, 207 NFS4ERR_RECALLCONFLICT = 10061, 208 NFS4ERR_UNKNOWN_LAYOUTTYPE = 10062, 209 NFS4ERR_SEQ_MISORDERED = 10063, /* unexpected seq.id in req */ 210 NFS4ERR_SEQUENCE_POS = 10064, /* [CB_]SEQ. op not 1st op */ 211 NFS4ERR_REQ_TOO_BIG = 10065, /* request too big */ 212 NFS4ERR_REP_TOO_BIG = 10066, /* reply too big */ 213 NFS4ERR_REP_TOO_BIG_TO_CACHE = 10067, /* rep. not all cached */ 214 NFS4ERR_RETRY_UNCACHED_REP = 10068, /* retry & rep. uncached */ 215 NFS4ERR_UNSAFE_COMPOUND = 10069, /* retry/recovery too hard */ 216 NFS4ERR_TOO_MANY_OPS = 10070, /* too many ops in [CB_]COMP */ 217 NFS4ERR_OP_NOT_IN_SESSION = 10071, /* op needs [CB_]SEQ. op */ 218 NFS4ERR_HASH_ALG_UNSUPP = 10072, /* hash alg. not supp. */ 219 /* Error 10073 is unused. */ 220 NFS4ERR_CLIENTID_BUSY = 10074, /* clientid has state */ 221 NFS4ERR_PNFS_IO_HOLE = 10075, /* IO to _SPARSE file hole */ 222 NFS4ERR_SEQ_FALSE_RETRY = 10076, /* retry not original */ 223 NFS4ERR_BAD_HIGH_SLOT = 10077, /* sequence arg bad */ 224 NFS4ERR_DEADSESSION = 10078, /* persistent session dead */ 225 NFS4ERR_ENCR_ALG_UNSUPP = 10079, /* SSV alg mismatch */ 226 NFS4ERR_PNFS_NO_LAYOUT = 10080, /* direct I/O with no layout */ 227 NFS4ERR_NOT_ONLY_OP = 10081, /* bad compound */ 228 NFS4ERR_WRONG_CRED = 10082, /* permissions:state change */ 229 NFS4ERR_WRONG_TYPE = 10083, /* current operation mismatch */ 230 NFS4ERR_DIRDELEG_UNAVAIL = 10084, /* no directory delegation */ 231 NFS4ERR_REJECT_DELEG = 10085, /* on callback */ 232 NFS4ERR_RETURNCONFLICT = 10086, /* outstanding layoutreturn */ 233 NFS4ERR_DELEG_REVOKED = 10087, /* deleg./layout revoked */ 234 235 /* nfs42 */ 236 NFS4ERR_PARTNER_NOTSUPP = 10088, 237 NFS4ERR_PARTNER_NO_AUTH = 10089, 238 NFS4ERR_METADATA_NOTSUPP = 10090, 239 NFS4ERR_OFFLOAD_DENIED = 10091, 240 NFS4ERR_WRONG_LFS = 10092, 241 NFS4ERR_BADLABEL = 10093, 242 }; 243 244 static inline bool seqid_mutating_err(u32 err) 245 { 246 /* rfc 3530 section 8.1.5: */ 247 switch (err) { 248 case NFS4ERR_STALE_CLIENTID: 249 case NFS4ERR_STALE_STATEID: 250 case NFS4ERR_BAD_STATEID: 251 case NFS4ERR_BAD_SEQID: 252 case NFS4ERR_BADXDR: 253 case NFS4ERR_RESOURCE: 254 case NFS4ERR_NOFILEHANDLE: 255 return false; 256 }; 257 return true; 258 } 259 260 /* 261 * Note: NF4BAD is not actually part of the protocol; it is just used 262 * internally by nfsd. 263 */ 264 enum nfs_ftype4 { 265 NF4BAD = 0, 266 NF4REG = 1, /* Regular File */ 267 NF4DIR = 2, /* Directory */ 268 NF4BLK = 3, /* Special File - block device */ 269 NF4CHR = 4, /* Special File - character device */ 270 NF4LNK = 5, /* Symbolic Link */ 271 NF4SOCK = 6, /* Special File - socket */ 272 NF4FIFO = 7, /* Special File - fifo */ 273 NF4ATTRDIR = 8, /* Attribute Directory */ 274 NF4NAMEDATTR = 9 /* Named Attribute */ 275 }; 276 277 enum open_claim_type4 { 278 NFS4_OPEN_CLAIM_NULL = 0, 279 NFS4_OPEN_CLAIM_PREVIOUS = 1, 280 NFS4_OPEN_CLAIM_DELEGATE_CUR = 2, 281 NFS4_OPEN_CLAIM_DELEGATE_PREV = 3, 282 NFS4_OPEN_CLAIM_FH = 4, /* 4.1 */ 283 NFS4_OPEN_CLAIM_DELEG_CUR_FH = 5, /* 4.1 */ 284 NFS4_OPEN_CLAIM_DELEG_PREV_FH = 6, /* 4.1 */ 285 }; 286 287 enum opentype4 { 288 NFS4_OPEN_NOCREATE = 0, 289 NFS4_OPEN_CREATE = 1 290 }; 291 292 enum createmode4 { 293 NFS4_CREATE_UNCHECKED = 0, 294 NFS4_CREATE_GUARDED = 1, 295 NFS4_CREATE_EXCLUSIVE = 2, 296 /* 297 * New to NFSv4.1. If session is persistent, 298 * GUARDED4 MUST be used. Otherwise, use 299 * EXCLUSIVE4_1 instead of EXCLUSIVE4. 300 */ 301 NFS4_CREATE_EXCLUSIVE4_1 = 3 302 }; 303 304 enum limit_by4 { 305 NFS4_LIMIT_SIZE = 1, 306 NFS4_LIMIT_BLOCKS = 2 307 }; 308 309 enum open_delegation_type4 { 310 NFS4_OPEN_DELEGATE_NONE = 0, 311 NFS4_OPEN_DELEGATE_READ = 1, 312 NFS4_OPEN_DELEGATE_WRITE = 2, 313 NFS4_OPEN_DELEGATE_NONE_EXT = 3, /* 4.1 */ 314 }; 315 316 enum why_no_delegation4 { /* new to v4.1 */ 317 WND4_NOT_WANTED = 0, 318 WND4_CONTENTION = 1, 319 WND4_RESOURCE = 2, 320 WND4_NOT_SUPP_FTYPE = 3, 321 WND4_WRITE_DELEG_NOT_SUPP_FTYPE = 4, 322 WND4_NOT_SUPP_UPGRADE = 5, 323 WND4_NOT_SUPP_DOWNGRADE = 6, 324 WND4_CANCELLED = 7, 325 WND4_IS_DIR = 8, 326 }; 327 328 enum lock_type4 { 329 NFS4_UNLOCK_LT = 0, 330 NFS4_READ_LT = 1, 331 NFS4_WRITE_LT = 2, 332 NFS4_READW_LT = 3, 333 NFS4_WRITEW_LT = 4 334 }; 335 336 337 /* Mandatory Attributes */ 338 #define FATTR4_WORD0_SUPPORTED_ATTRS (1UL << 0) 339 #define FATTR4_WORD0_TYPE (1UL << 1) 340 #define FATTR4_WORD0_FH_EXPIRE_TYPE (1UL << 2) 341 #define FATTR4_WORD0_CHANGE (1UL << 3) 342 #define FATTR4_WORD0_SIZE (1UL << 4) 343 #define FATTR4_WORD0_LINK_SUPPORT (1UL << 5) 344 #define FATTR4_WORD0_SYMLINK_SUPPORT (1UL << 6) 345 #define FATTR4_WORD0_NAMED_ATTR (1UL << 7) 346 #define FATTR4_WORD0_FSID (1UL << 8) 347 #define FATTR4_WORD0_UNIQUE_HANDLES (1UL << 9) 348 #define FATTR4_WORD0_LEASE_TIME (1UL << 10) 349 #define FATTR4_WORD0_RDATTR_ERROR (1UL << 11) 350 /* Mandatory in NFSv4.1 */ 351 #define FATTR4_WORD2_SUPPATTR_EXCLCREAT (1UL << 11) 352 353 /* Recommended Attributes */ 354 #define FATTR4_WORD0_ACL (1UL << 12) 355 #define FATTR4_WORD0_ACLSUPPORT (1UL << 13) 356 #define FATTR4_WORD0_ARCHIVE (1UL << 14) 357 #define FATTR4_WORD0_CANSETTIME (1UL << 15) 358 #define FATTR4_WORD0_CASE_INSENSITIVE (1UL << 16) 359 #define FATTR4_WORD0_CASE_PRESERVING (1UL << 17) 360 #define FATTR4_WORD0_CHOWN_RESTRICTED (1UL << 18) 361 #define FATTR4_WORD0_FILEHANDLE (1UL << 19) 362 #define FATTR4_WORD0_FILEID (1UL << 20) 363 #define FATTR4_WORD0_FILES_AVAIL (1UL << 21) 364 #define FATTR4_WORD0_FILES_FREE (1UL << 22) 365 #define FATTR4_WORD0_FILES_TOTAL (1UL << 23) 366 #define FATTR4_WORD0_FS_LOCATIONS (1UL << 24) 367 #define FATTR4_WORD0_HIDDEN (1UL << 25) 368 #define FATTR4_WORD0_HOMOGENEOUS (1UL << 26) 369 #define FATTR4_WORD0_MAXFILESIZE (1UL << 27) 370 #define FATTR4_WORD0_MAXLINK (1UL << 28) 371 #define FATTR4_WORD0_MAXNAME (1UL << 29) 372 #define FATTR4_WORD0_MAXREAD (1UL << 30) 373 #define FATTR4_WORD0_MAXWRITE (1UL << 31) 374 #define FATTR4_WORD1_MIMETYPE (1UL << 0) 375 #define FATTR4_WORD1_MODE (1UL << 1) 376 #define FATTR4_WORD1_NO_TRUNC (1UL << 2) 377 #define FATTR4_WORD1_NUMLINKS (1UL << 3) 378 #define FATTR4_WORD1_OWNER (1UL << 4) 379 #define FATTR4_WORD1_OWNER_GROUP (1UL << 5) 380 #define FATTR4_WORD1_QUOTA_HARD (1UL << 6) 381 #define FATTR4_WORD1_QUOTA_SOFT (1UL << 7) 382 #define FATTR4_WORD1_QUOTA_USED (1UL << 8) 383 #define FATTR4_WORD1_RAWDEV (1UL << 9) 384 #define FATTR4_WORD1_SPACE_AVAIL (1UL << 10) 385 #define FATTR4_WORD1_SPACE_FREE (1UL << 11) 386 #define FATTR4_WORD1_SPACE_TOTAL (1UL << 12) 387 #define FATTR4_WORD1_SPACE_USED (1UL << 13) 388 #define FATTR4_WORD1_SYSTEM (1UL << 14) 389 #define FATTR4_WORD1_TIME_ACCESS (1UL << 15) 390 #define FATTR4_WORD1_TIME_ACCESS_SET (1UL << 16) 391 #define FATTR4_WORD1_TIME_BACKUP (1UL << 17) 392 #define FATTR4_WORD1_TIME_CREATE (1UL << 18) 393 #define FATTR4_WORD1_TIME_DELTA (1UL << 19) 394 #define FATTR4_WORD1_TIME_METADATA (1UL << 20) 395 #define FATTR4_WORD1_TIME_MODIFY (1UL << 21) 396 #define FATTR4_WORD1_TIME_MODIFY_SET (1UL << 22) 397 #define FATTR4_WORD1_MOUNTED_ON_FILEID (1UL << 23) 398 #define FATTR4_WORD1_FS_LAYOUT_TYPES (1UL << 30) 399 #define FATTR4_WORD2_LAYOUT_BLKSIZE (1UL << 1) 400 #define FATTR4_WORD2_MDSTHRESHOLD (1UL << 4) 401 #define FATTR4_WORD2_SECURITY_LABEL (1UL << 16) 402 #define FATTR4_WORD2_CHANGE_SECURITY_LABEL \ 403 (1UL << 17) 404 405 /* MDS threshold bitmap bits */ 406 #define THRESHOLD_RD (1UL << 0) 407 #define THRESHOLD_WR (1UL << 1) 408 #define THRESHOLD_RD_IO (1UL << 2) 409 #define THRESHOLD_WR_IO (1UL << 3) 410 411 #define NFSPROC4_NULL 0 412 #define NFSPROC4_COMPOUND 1 413 #define NFS4_VERSION 4 414 #define NFS4_MINOR_VERSION 0 415 416 #define NFS4_DEBUG 1 417 418 /* Index of predefined Linux client operations */ 419 420 enum { 421 NFSPROC4_CLNT_NULL = 0, /* Unused */ 422 NFSPROC4_CLNT_READ, 423 NFSPROC4_CLNT_WRITE, 424 NFSPROC4_CLNT_COMMIT, 425 NFSPROC4_CLNT_OPEN, 426 NFSPROC4_CLNT_OPEN_CONFIRM, 427 NFSPROC4_CLNT_OPEN_NOATTR, 428 NFSPROC4_CLNT_OPEN_DOWNGRADE, 429 NFSPROC4_CLNT_CLOSE, 430 NFSPROC4_CLNT_SETATTR, 431 NFSPROC4_CLNT_FSINFO, 432 NFSPROC4_CLNT_RENEW, 433 NFSPROC4_CLNT_SETCLIENTID, 434 NFSPROC4_CLNT_SETCLIENTID_CONFIRM, 435 NFSPROC4_CLNT_LOCK, 436 NFSPROC4_CLNT_LOCKT, 437 NFSPROC4_CLNT_LOCKU, 438 NFSPROC4_CLNT_ACCESS, 439 NFSPROC4_CLNT_GETATTR, 440 NFSPROC4_CLNT_LOOKUP, 441 NFSPROC4_CLNT_LOOKUP_ROOT, 442 NFSPROC4_CLNT_REMOVE, 443 NFSPROC4_CLNT_RENAME, 444 NFSPROC4_CLNT_LINK, 445 NFSPROC4_CLNT_SYMLINK, 446 NFSPROC4_CLNT_CREATE, 447 NFSPROC4_CLNT_PATHCONF, 448 NFSPROC4_CLNT_STATFS, 449 NFSPROC4_CLNT_READLINK, 450 NFSPROC4_CLNT_READDIR, 451 NFSPROC4_CLNT_SERVER_CAPS, 452 NFSPROC4_CLNT_DELEGRETURN, 453 NFSPROC4_CLNT_GETACL, 454 NFSPROC4_CLNT_SETACL, 455 NFSPROC4_CLNT_FS_LOCATIONS, 456 NFSPROC4_CLNT_RELEASE_LOCKOWNER, 457 NFSPROC4_CLNT_SECINFO, 458 NFSPROC4_CLNT_FSID_PRESENT, 459 460 /* nfs41 */ 461 NFSPROC4_CLNT_EXCHANGE_ID, 462 NFSPROC4_CLNT_CREATE_SESSION, 463 NFSPROC4_CLNT_DESTROY_SESSION, 464 NFSPROC4_CLNT_SEQUENCE, 465 NFSPROC4_CLNT_GET_LEASE_TIME, 466 NFSPROC4_CLNT_RECLAIM_COMPLETE, 467 NFSPROC4_CLNT_LAYOUTGET, 468 NFSPROC4_CLNT_GETDEVICEINFO, 469 NFSPROC4_CLNT_LAYOUTCOMMIT, 470 NFSPROC4_CLNT_LAYOUTRETURN, 471 NFSPROC4_CLNT_SECINFO_NO_NAME, 472 NFSPROC4_CLNT_TEST_STATEID, 473 NFSPROC4_CLNT_FREE_STATEID, 474 NFSPROC4_CLNT_GETDEVICELIST, 475 NFSPROC4_CLNT_BIND_CONN_TO_SESSION, 476 NFSPROC4_CLNT_DESTROY_CLIENTID, 477 }; 478 479 /* nfs41 types */ 480 struct nfs4_sessionid { 481 unsigned char data[NFS4_MAX_SESSIONID_LEN]; 482 }; 483 484 /* Create Session Flags */ 485 #define SESSION4_PERSIST 0x001 486 #define SESSION4_BACK_CHAN 0x002 487 #define SESSION4_RDMA 0x004 488 489 #define SESSION4_FLAG_MASK_A 0x007 490 491 enum state_protect_how4 { 492 SP4_NONE = 0, 493 SP4_MACH_CRED = 1, 494 SP4_SSV = 2 495 }; 496 497 enum pnfs_layouttype { 498 LAYOUT_NFSV4_1_FILES = 1, 499 LAYOUT_OSD2_OBJECTS = 2, 500 LAYOUT_BLOCK_VOLUME = 3, 501 }; 502 503 /* used for both layout return and recall */ 504 enum pnfs_layoutreturn_type { 505 RETURN_FILE = 1, 506 RETURN_FSID = 2, 507 RETURN_ALL = 3 508 }; 509 510 enum pnfs_iomode { 511 IOMODE_READ = 1, 512 IOMODE_RW = 2, 513 IOMODE_ANY = 3, 514 }; 515 516 enum pnfs_notify_deviceid_type4 { 517 NOTIFY_DEVICEID4_CHANGE = 1 << 1, 518 NOTIFY_DEVICEID4_DELETE = 1 << 2, 519 }; 520 521 #define NFL4_UFLG_MASK 0x0000003F 522 #define NFL4_UFLG_DENSE 0x00000001 523 #define NFL4_UFLG_COMMIT_THRU_MDS 0x00000002 524 #define NFL4_UFLG_STRIPE_UNIT_SIZE_MASK 0xFFFFFFC0 525 526 /* Encoded in the loh_body field of type layouthint4 */ 527 enum filelayout_hint_care4 { 528 NFLH4_CARE_DENSE = NFL4_UFLG_DENSE, 529 NFLH4_CARE_COMMIT_THRU_MDS = NFL4_UFLG_COMMIT_THRU_MDS, 530 NFLH4_CARE_STRIPE_UNIT_SIZE = 0x00000040, 531 NFLH4_CARE_STRIPE_COUNT = 0x00000080 532 }; 533 534 #define NFS4_DEVICEID4_SIZE 16 535 536 struct nfs4_deviceid { 537 char data[NFS4_DEVICEID4_SIZE]; 538 }; 539 540 #endif 541