include/linux/nfs_xdr.h

   1 #ifndef _LINUX_NFS_XDR_H
   2 #define _LINUX_NFS_XDR_H
   3
   4 #include <linux/nfsacl.h>
   5 #include <linux/nfs3.h>
   6
   7 /*
   8  * To change the maximum rsize and wsize supported by the NFS client, adjust
   9  * NFS_MAX_FILE_IO_SIZE.  64KB is a typical maximum, but some servers can
  10  * support a megabyte or more.  The default is left at 4096 bytes, which is
  11  * reasonable for NFS over UDP.
  12  */
  13 #define NFS_MAX_FILE_IO_SIZE    (1048576U)
  14 #define NFS_DEF_FILE_IO_SIZE    (4096U)
  15 #define NFS_MIN_FILE_IO_SIZE    (1024U)
  16
  17 struct nfs_fsid {
  18         uint64_t                major;
  19         uint64_t                minor;
  20 };
  21
  22 /*
  23  * Helper for checking equality between 2 fsids.
  24  */
  25 static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b)
  26 {
  27         return a->major == b->major && a->minor == b->minor;
  28 }
  29
  30 struct nfs_fattr {
  31         unsigned int            valid;          /* which fields are valid */
  32         umode_t                 mode;
  33         __u32                   nlink;
  34         __u32                   uid;
  35         __u32                   gid;
  36         dev_t                   rdev;
  37         __u64                   size;
  38         union {
  39                 struct {
  40                         __u32   blocksize;
  41                         __u32   blocks;
  42                 } nfs2;
  43                 struct {
  44                         __u64   used;
  45                 } nfs3;
  46         } du;
  47         struct nfs_fsid         fsid;
  48         __u64                   fileid;
  49         struct timespec         atime;
  50         struct timespec         mtime;
  51         struct timespec         ctime;
  52         __u64                   change_attr;    /* NFSv4 change attribute */
  53         __u64                   pre_change_attr;/* pre-op NFSv4 change attribute */
  54         __u64                   pre_size;       /* pre_op_attr.size       */
  55         struct timespec         pre_mtime;      /* pre_op_attr.mtime      */
  56         struct timespec         pre_ctime;      /* pre_op_attr.ctime      */
  57         unsigned long           time_start;
  58         unsigned long           gencount;
  59 };
  60
  61 #define NFS_ATTR_FATTR_TYPE             (1U << 0)
  62 #define NFS_ATTR_FATTR_MODE             (1U << 1)
  63 #define NFS_ATTR_FATTR_NLINK            (1U << 2)
  64 #define NFS_ATTR_FATTR_OWNER            (1U << 3)
  65 #define NFS_ATTR_FATTR_GROUP            (1U << 4)
  66 #define NFS_ATTR_FATTR_RDEV             (1U << 5)
  67 #define NFS_ATTR_FATTR_SIZE             (1U << 6)
  68 #define NFS_ATTR_FATTR_PRESIZE          (1U << 7)
  69 #define NFS_ATTR_FATTR_BLOCKS_USED      (1U << 8)
  70 #define NFS_ATTR_FATTR_SPACE_USED       (1U << 9)
  71 #define NFS_ATTR_FATTR_FSID             (1U << 10)
  72 #define NFS_ATTR_FATTR_FILEID           (1U << 11)
  73 #define NFS_ATTR_FATTR_ATIME            (1U << 12)
  74 #define NFS_ATTR_FATTR_MTIME            (1U << 13)
  75 #define NFS_ATTR_FATTR_CTIME            (1U << 14)
  76 #define NFS_ATTR_FATTR_PREMTIME         (1U << 15)
  77 #define NFS_ATTR_FATTR_PRECTIME         (1U << 16)
  78 #define NFS_ATTR_FATTR_CHANGE           (1U << 17)
  79 #define NFS_ATTR_FATTR_PRECHANGE        (1U << 18)
  80 #define NFS_ATTR_FATTR_V4_REFERRAL      (1U << 19)      /* NFSv4 referral */
  81
  82 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
  83                 | NFS_ATTR_FATTR_MODE \
  84                 | NFS_ATTR_FATTR_NLINK \
  85                 | NFS_ATTR_FATTR_OWNER \
  86                 | NFS_ATTR_FATTR_GROUP \
  87                 | NFS_ATTR_FATTR_RDEV \
  88                 | NFS_ATTR_FATTR_SIZE \
  89                 | NFS_ATTR_FATTR_FSID \
  90                 | NFS_ATTR_FATTR_FILEID \
  91                 | NFS_ATTR_FATTR_ATIME \
  92                 | NFS_ATTR_FATTR_MTIME \
  93                 | NFS_ATTR_FATTR_CTIME)
  94 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
  95                 | NFS_ATTR_FATTR_BLOCKS_USED)
  96 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
  97                 | NFS_ATTR_FATTR_SPACE_USED)
  98 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
  99                 | NFS_ATTR_FATTR_SPACE_USED \
 100                 | NFS_ATTR_FATTR_CHANGE)
 101
 102 /*
 103  * Info on the file system
 104  */
 105 struct nfs_fsinfo {
 106         struct nfs_fattr        *fattr; /* Post-op attributes */
 107         __u32                   rtmax;  /* max.  read transfer size */
 108         __u32                   rtpref; /* pref. read transfer size */
 109         __u32                   rtmult; /* reads should be multiple of this */
 110         __u32                   wtmax;  /* max.  write transfer size */
 111         __u32                   wtpref; /* pref. write transfer size */
 112         __u32                   wtmult; /* writes should be multiple of this */
 113         __u32                   dtpref; /* pref. readdir transfer size */
 114         __u64                   maxfilesize;
 115         struct timespec         time_delta; /* server time granularity */
 116         __u32                   lease_time; /* in seconds */
 117         __u32                   layouttype; /* supported pnfs layout driver */
 118 };
 119
 120 struct nfs_fsstat {
 121         struct nfs_fattr        *fattr; /* Post-op attributes */
 122         __u64                   tbytes; /* total size in bytes */
 123         __u64                   fbytes; /* # of free bytes */
 124         __u64                   abytes; /* # of bytes available to user */
 125         __u64                   tfiles; /* # of files */
 126         __u64                   ffiles; /* # of free files */
 127         __u64                   afiles; /* # of files available to user */
 128 };
 129
 130 struct nfs2_fsstat {
 131         __u32                   tsize;  /* Server transfer size */
 132         __u32                   bsize;  /* Filesystem block size */
 133         __u32                   blocks; /* No. of "bsize" blocks on filesystem */
 134         __u32                   bfree;  /* No. of free "bsize" blocks */
 135         __u32                   bavail; /* No. of available "bsize" blocks */
 136 };
 137
 138 struct nfs_pathconf {
 139         struct nfs_fattr        *fattr; /* Post-op attributes */
 140         __u32                   max_link; /* max # of hard links */
 141         __u32                   max_namelen; /* max name length */
 142 };
 143
 144 struct nfs4_change_info {
 145         u32                     atomic;
 146         u64                     before;
 147         u64                     after;
 148 };
 149
 150 struct nfs_seqid;
 151
 152 /* nfs41 sessions channel attributes */
 153 struct nfs4_channel_attrs {
 154         u32                     headerpadsz;
 155         u32                     max_rqst_sz;
 156         u32                     max_resp_sz;
 157         u32                     max_resp_sz_cached;
 158         u32                     max_ops;
 159         u32                     max_reqs;
 160 };
 161
 162 /* nfs41 sessions slot seqid */
 163 struct nfs4_slot {
 164         u32                     seq_nr;
 165 };
 166
 167 struct nfs4_sequence_args {
 168         struct nfs4_session     *sa_session;
 169         u8                      sa_slotid;
 170         u8                      sa_cache_this;
 171 };
 172
 173 struct nfs4_sequence_res {
 174         struct nfs4_session     *sr_session;
 175         struct nfs4_slot        *sr_slot;       /* slot used to send request */
 176         int                     sr_status;      /* sequence operation status */
 177         unsigned long           sr_renewal_time;
 178         u32                     sr_status_flags;
 179 };
 180
 181 struct nfs4_get_lease_time_args {
 182         struct nfs4_sequence_args       la_seq_args;
 183 };
 184
 185 struct nfs4_get_lease_time_res {
 186         struct nfs_fsinfo              *lr_fsinfo;
 187         struct nfs4_sequence_res        lr_seq_res;
 188 };
 189
 190 #define PNFS_LAYOUT_MAXSIZE 4096
 191
 192 struct nfs4_layoutdriver_data {
 193         __u32 len;
 194         void *buf;
 195 };
 196
 197 struct pnfs_layout_range {
 198         u32 iomode;
 199         u64 offset;
 200         u64 length;
 201 };
 202
 203 struct nfs4_layoutget_args {
 204         __u32 type;
 205         struct pnfs_layout_range range;
 206         __u64 minlength;
 207         __u32 maxcount;
 208         struct inode *inode;
 209         struct nfs_open_context *ctx;
 210         struct nfs4_sequence_args seq_args;
 211         nfs4_stateid stateid;
 212 };
 213
 214 struct nfs4_layoutget_res {
 215         __u32 return_on_close;
 216         struct pnfs_layout_range range;
 217         __u32 type;
 218         nfs4_stateid stateid;
 219         struct nfs4_layoutdriver_data layout;
 220         struct nfs4_sequence_res seq_res;
 221 };
 222
 223 struct nfs4_layoutget {
 224         struct nfs4_layoutget_args args;
 225         struct nfs4_layoutget_res res;
 226         struct pnfs_layout_segment **lsegpp;
 227 };
 228
 229 struct nfs4_getdeviceinfo_args {
 230         struct pnfs_device *pdev;
 231         struct nfs4_sequence_args seq_args;
 232 };
 233
 234 struct nfs4_getdeviceinfo_res {
 235         struct pnfs_device *pdev;
 236         struct nfs4_sequence_res seq_res;
 237 };
 238
 239 /*
 240  * Arguments to the open call.
 241  */
 242 struct nfs_openargs {
 243         const struct nfs_fh *   fh;
 244         struct nfs_seqid *      seqid;
 245         int                     open_flags;
 246         fmode_t                 fmode;
 247         __u64                   clientid;
 248         __u64                   id;
 249         union {
 250                 struct {
 251                         struct iattr *  attrs;    /* UNCHECKED, GUARDED */
 252                         nfs4_verifier   verifier; /* EXCLUSIVE */
 253                 };
 254                 nfs4_stateid    delegation;             /* CLAIM_DELEGATE_CUR */
 255                 fmode_t         delegation_type;        /* CLAIM_PREVIOUS */
 256         } u;
 257         const struct qstr *     name;
 258         const struct nfs_server *server;         /* Needed for ID mapping */
 259         const u32 *             bitmask;
 260         __u32                   claim;
 261         struct nfs4_sequence_args       seq_args;
 262 };
 263
 264 struct nfs_openres {
 265         nfs4_stateid            stateid;
 266         struct nfs_fh           fh;
 267         struct nfs4_change_info cinfo;
 268         __u32                   rflags;
 269         struct nfs_fattr *      f_attr;
 270         struct nfs_fattr *      dir_attr;
 271         struct nfs_seqid *      seqid;
 272         const struct nfs_server *server;
 273         fmode_t                 delegation_type;
 274         nfs4_stateid            delegation;
 275         __u32                   do_recall;
 276         __u64                   maxsize;
 277         __u32                   attrset[NFS4_BITMAP_SIZE];
 278         struct nfs4_sequence_res        seq_res;
 279 };
 280
 281 /*
 282  * Arguments to the open_confirm call.
 283  */
 284 struct nfs_open_confirmargs {
 285         const struct nfs_fh *   fh;
 286         nfs4_stateid *          stateid;
 287         struct nfs_seqid *      seqid;
 288 };
 289
 290 struct nfs_open_confirmres {
 291         nfs4_stateid            stateid;
 292         struct nfs_seqid *      seqid;
 293 };
 294
 295 /*
 296  * Arguments to the close call.
 297  */
 298 struct nfs_closeargs {
 299         struct nfs_fh *         fh;
 300         nfs4_stateid *          stateid;
 301         struct nfs_seqid *      seqid;
 302         fmode_t                 fmode;
 303         const u32 *             bitmask;
 304         struct nfs4_sequence_args       seq_args;
 305 };
 306
 307 struct nfs_closeres {
 308         nfs4_stateid            stateid;
 309         struct nfs_fattr *      fattr;
 310         struct nfs_seqid *      seqid;
 311         const struct nfs_server *server;
 312         struct nfs4_sequence_res        seq_res;
 313 };
 314 /*
 315  *  * Arguments to the lock,lockt, and locku call.
 316  *   */
 317 struct nfs_lowner {
 318         __u64                   clientid;
 319         __u64                   id;
 320         dev_t                   s_dev;
 321 };
 322
 323 struct nfs_lock_args {
 324         struct nfs_fh *         fh;
 325         struct file_lock *      fl;
 326         struct nfs_seqid *      lock_seqid;
 327         nfs4_stateid *          lock_stateid;
 328         struct nfs_seqid *      open_seqid;
 329         nfs4_stateid *          open_stateid;
 330         struct nfs_lowner       lock_owner;
 331         unsigned char           block : 1;
 332         unsigned char           reclaim : 1;
 333         unsigned char           new_lock_owner : 1;
 334         struct nfs4_sequence_args       seq_args;
 335 };
 336
 337 struct nfs_lock_res {
 338         nfs4_stateid            stateid;
 339         struct nfs_seqid *      lock_seqid;
 340         struct nfs_seqid *      open_seqid;
 341         struct nfs4_sequence_res        seq_res;
 342 };
 343
 344 struct nfs_locku_args {
 345         struct nfs_fh *         fh;
 346         struct file_lock *      fl;
 347         struct nfs_seqid *      seqid;
 348         nfs4_stateid *          stateid;
 349         struct nfs4_sequence_args       seq_args;
 350 };
 351
 352 struct nfs_locku_res {
 353         nfs4_stateid            stateid;
 354         struct nfs_seqid *      seqid;
 355         struct nfs4_sequence_res        seq_res;
 356 };
 357
 358 struct nfs_lockt_args {
 359         struct nfs_fh *         fh;
 360         struct file_lock *      fl;
 361         struct nfs_lowner       lock_owner;
 362         struct nfs4_sequence_args       seq_args;
 363 };
 364
 365 struct nfs_lockt_res {
 366         struct file_lock *      denied; /* LOCK, LOCKT failed */
 367         struct nfs4_sequence_res        seq_res;
 368 };
 369
 370 struct nfs_release_lockowner_args {
 371         struct nfs_lowner       lock_owner;
 372 };
 373
 374 struct nfs4_delegreturnargs {
 375         const struct nfs_fh *fhandle;
 376         const nfs4_stateid *stateid;
 377         const u32 * bitmask;
 378         struct nfs4_sequence_args       seq_args;
 379 };
 380
 381 struct nfs4_delegreturnres {
 382         struct nfs_fattr * fattr;
 383         const struct nfs_server *server;
 384         struct nfs4_sequence_res        seq_res;
 385 };
 386
 387 /*
 388  * Arguments to the read call.
 389  */
 390 struct nfs_readargs {
 391         struct nfs_fh *         fh;
 392         struct nfs_open_context *context;
 393         struct nfs_lock_context *lock_context;
 394         __u64                   offset;
 395         __u32                   count;
 396         unsigned int            pgbase;
 397         struct page **          pages;
 398         struct nfs4_sequence_args       seq_args;
 399 };
 400
 401 struct nfs_readres {
 402         struct nfs_fattr *      fattr;
 403         __u32                   count;
 404         int                     eof;
 405         struct nfs4_sequence_res        seq_res;
 406 };
 407
 408 /*
 409  * Arguments to the write call.
 410  */
 411 struct nfs_writeargs {
 412         struct nfs_fh *         fh;
 413         struct nfs_open_context *context;
 414         struct nfs_lock_context *lock_context;
 415         __u64                   offset;
 416         __u32                   count;
 417         enum nfs3_stable_how    stable;
 418         unsigned int            pgbase;
 419         struct page **          pages;
 420         const u32 *             bitmask;
 421         struct nfs4_sequence_args       seq_args;
 422 };
 423
 424 struct nfs_writeverf {
 425         enum nfs3_stable_how    committed;
 426         __be32                  verifier[2];
 427 };
 428
 429 struct nfs_writeres {
 430         struct nfs_fattr *      fattr;
 431         struct nfs_writeverf *  verf;
 432         __u32                   count;
 433         const struct nfs_server *server;
 434         struct nfs4_sequence_res        seq_res;
 435 };
 436
 437 /*
 438  * Common arguments to the unlink call
 439  */
 440 struct nfs_removeargs {
 441         const struct nfs_fh     *fh;
 442         struct qstr             name;
 443         const u32 *             bitmask;
 444         struct nfs4_sequence_args       seq_args;
 445 };
 446
 447 struct nfs_removeres {
 448         const struct nfs_server *server;
 449         struct nfs_fattr        *dir_attr;
 450         struct nfs4_change_info cinfo;
 451         struct nfs4_sequence_res        seq_res;
 452 };
 453
 454 /*
 455  * Common arguments to the rename call
 456  */
 457 struct nfs_renameargs {
 458         const struct nfs_fh             *old_dir;
 459         const struct nfs_fh             *new_dir;
 460         const struct qstr               *old_name;
 461         const struct qstr               *new_name;
 462         const u32                       *bitmask;
 463         struct nfs4_sequence_args       seq_args;
 464 };
 465
 466 struct nfs_renameres {
 467         const struct nfs_server         *server;
 468         struct nfs4_change_info         old_cinfo;
 469         struct nfs_fattr                *old_fattr;
 470         struct nfs4_change_info         new_cinfo;
 471         struct nfs_fattr                *new_fattr;
 472         struct nfs4_sequence_res        seq_res;
 473 };
 474
 475 /*
 476  * Argument struct for decode_entry function
 477  */
 478 struct nfs_entry {
 479         __u64                   ino;
 480         __u64                   cookie,
 481                                 prev_cookie;
 482         const char *            name;
 483         unsigned int            len;
 484         int                     eof;
 485         struct nfs_fh *         fh;
 486         struct nfs_fattr *      fattr;
 487         unsigned char           d_type;
 488         struct nfs_server *     server;
 489 };
 490
 491 /*
 492  * The following types are for NFSv2 only.
 493  */
 494 struct nfs_sattrargs {
 495         struct nfs_fh *         fh;
 496         struct iattr *          sattr;
 497 };
 498
 499 struct nfs_diropargs {
 500         struct nfs_fh *         fh;
 501         const char *            name;
 502         unsigned int            len;
 503 };
 504
 505 struct nfs_createargs {
 506         struct nfs_fh *         fh;
 507         const char *            name;
 508         unsigned int            len;
 509         struct iattr *          sattr;
 510 };
 511
 512 struct nfs_setattrargs {
 513         struct nfs_fh *                 fh;
 514         nfs4_stateid                    stateid;
 515         struct iattr *                  iap;
 516         const struct nfs_server *       server; /* Needed for name mapping */
 517         const u32 *                     bitmask;
 518         struct nfs4_sequence_args       seq_args;
 519 };
 520
 521 struct nfs_setaclargs {
 522         struct nfs_fh *                 fh;
 523         size_t                          acl_len;
 524         unsigned int                    acl_pgbase;
 525         struct page **                  acl_pages;
 526         struct nfs4_sequence_args       seq_args;
 527 };
 528
 529 struct nfs_setaclres {
 530         struct nfs4_sequence_res        seq_res;
 531 };
 532
 533 struct nfs_getaclargs {
 534         struct nfs_fh *                 fh;
 535         size_t                          acl_len;
 536         unsigned int                    acl_pgbase;
 537         struct page **                  acl_pages;
 538         struct nfs4_sequence_args       seq_args;
 539 };
 540
 541 struct nfs_getaclres {
 542         size_t                          acl_len;
 543         struct nfs4_sequence_res        seq_res;
 544 };
 545
 546 struct nfs_setattrres {
 547         struct nfs_fattr *              fattr;
 548         const struct nfs_server *       server;
 549         struct nfs4_sequence_res        seq_res;
 550 };
 551
 552 struct nfs_linkargs {
 553         struct nfs_fh *         fromfh;
 554         struct nfs_fh *         tofh;
 555         const char *            toname;
 556         unsigned int            tolen;
 557 };
 558
 559 struct nfs_symlinkargs {
 560         struct nfs_fh *         fromfh;
 561         const char *            fromname;
 562         unsigned int            fromlen;
 563         struct page **          pages;
 564         unsigned int            pathlen;
 565         struct iattr *          sattr;
 566 };
 567
 568 struct nfs_readdirargs {
 569         struct nfs_fh *         fh;
 570         __u32                   cookie;
 571         unsigned int            count;
 572         struct page **          pages;
 573 };
 574
 575 struct nfs3_getaclargs {
 576         struct nfs_fh *         fh;
 577         int                     mask;
 578         struct page **          pages;
 579 };
 580
 581 struct nfs3_setaclargs {
 582         struct inode *          inode;
 583         int                     mask;
 584         struct posix_acl *      acl_access;
 585         struct posix_acl *      acl_default;
 586         size_t                  len;
 587         unsigned int            npages;
 588         struct page **          pages;
 589 };
 590
 591 struct nfs_diropok {
 592         struct nfs_fh *         fh;
 593         struct nfs_fattr *      fattr;
 594 };
 595
 596 struct nfs_readlinkargs {
 597         struct nfs_fh *         fh;
 598         unsigned int            pgbase;
 599         unsigned int            pglen;
 600         struct page **          pages;
 601 };
 602
 603 struct nfs3_sattrargs {
 604         struct nfs_fh *         fh;
 605         struct iattr *          sattr;
 606         unsigned int            guard;
 607         struct timespec         guardtime;
 608 };
 609
 610 struct nfs3_diropargs {
 611         struct nfs_fh *         fh;
 612         const char *            name;
 613         unsigned int            len;
 614 };
 615
 616 struct nfs3_accessargs {
 617         struct nfs_fh *         fh;
 618         __u32                   access;
 619 };
 620
 621 struct nfs3_createargs {
 622         struct nfs_fh *         fh;
 623         const char *            name;
 624         unsigned int            len;
 625         struct iattr *          sattr;
 626         enum nfs3_createmode    createmode;
 627         __be32                  verifier[2];
 628 };
 629
 630 struct nfs3_mkdirargs {
 631         struct nfs_fh *         fh;
 632         const char *            name;
 633         unsigned int            len;
 634         struct iattr *          sattr;
 635 };
 636
 637 struct nfs3_symlinkargs {
 638         struct nfs_fh *         fromfh;
 639         const char *            fromname;
 640         unsigned int            fromlen;
 641         struct page **          pages;
 642         unsigned int            pathlen;
 643         struct iattr *          sattr;
 644 };
 645
 646 struct nfs3_mknodargs {
 647         struct nfs_fh *         fh;
 648         const char *            name;
 649         unsigned int            len;
 650         enum nfs3_ftype         type;
 651         struct iattr *          sattr;
 652         dev_t                   rdev;
 653 };
 654
 655 struct nfs3_linkargs {
 656         struct nfs_fh *         fromfh;
 657         struct nfs_fh *         tofh;
 658         const char *            toname;
 659         unsigned int            tolen;
 660 };
 661
 662 struct nfs3_readdirargs {
 663         struct nfs_fh *         fh;
 664         __u64                   cookie;
 665         __be32                  verf[2];
 666         int                     plus;
 667         unsigned int            count;
 668         struct page **          pages;
 669 };
 670
 671 struct nfs3_diropres {
 672         struct nfs_fattr *      dir_attr;
 673         struct nfs_fh *         fh;
 674         struct nfs_fattr *      fattr;
 675 };
 676
 677 struct nfs3_accessres {
 678         struct nfs_fattr *      fattr;
 679         __u32                   access;
 680 };
 681
 682 struct nfs3_readlinkargs {
 683         struct nfs_fh *         fh;
 684         unsigned int            pgbase;
 685         unsigned int            pglen;
 686         struct page **          pages;
 687 };
 688
 689 struct nfs3_linkres {
 690         struct nfs_fattr *      dir_attr;
 691         struct nfs_fattr *      fattr;
 692 };
 693
 694 struct nfs3_readdirres {
 695         struct nfs_fattr *      dir_attr;
 696         __be32 *                verf;
 697         int                     plus;
 698 };
 699
 700 struct nfs3_getaclres {
 701         struct nfs_fattr *      fattr;
 702         int                     mask;
 703         unsigned int            acl_access_count;
 704         unsigned int            acl_default_count;
 705         struct posix_acl *      acl_access;
 706         struct posix_acl *      acl_default;
 707 };
 708
 709 #ifdef CONFIG_NFS_V4
 710
 711 typedef u64 clientid4;
 712
 713 struct nfs4_accessargs {
 714         const struct nfs_fh *           fh;
 715         const u32 *                     bitmask;
 716         u32                             access;
 717         struct nfs4_sequence_args       seq_args;
 718 };
 719
 720 struct nfs4_accessres {
 721         const struct nfs_server *       server;
 722         struct nfs_fattr *              fattr;
 723         u32                             supported;
 724         u32                             access;
 725         struct nfs4_sequence_res        seq_res;
 726 };
 727
 728 struct nfs4_create_arg {
 729         u32                             ftype;
 730         union {
 731                 struct {
 732                         struct page **  pages;
 733                         unsigned int    len;
 734                 } symlink;   /* NF4LNK */
 735                 struct {
 736                         u32             specdata1;
 737                         u32             specdata2;
 738                 } device;    /* NF4BLK, NF4CHR */
 739         } u;
 740         const struct qstr *             name;
 741         const struct nfs_server *       server;
 742         const struct iattr *            attrs;
 743         const struct nfs_fh *           dir_fh;
 744         const u32 *                     bitmask;
 745         struct nfs4_sequence_args       seq_args;
 746 };
 747
 748 struct nfs4_create_res {
 749         const struct nfs_server *       server;
 750         struct nfs_fh *                 fh;
 751         struct nfs_fattr *              fattr;
 752         struct nfs4_change_info         dir_cinfo;
 753         struct nfs_fattr *              dir_fattr;
 754         struct nfs4_sequence_res        seq_res;
 755 };
 756
 757 struct nfs4_fsinfo_arg {
 758         const struct nfs_fh *           fh;
 759         const u32 *                     bitmask;
 760         struct nfs4_sequence_args       seq_args;
 761 };
 762
 763 struct nfs4_fsinfo_res {
 764         struct nfs_fsinfo              *fsinfo;
 765         struct nfs4_sequence_res        seq_res;
 766 };
 767
 768 struct nfs4_getattr_arg {
 769         const struct nfs_fh *           fh;
 770         const u32 *                     bitmask;
 771         struct nfs4_sequence_args       seq_args;
 772 };
 773
 774 struct nfs4_getattr_res {
 775         const struct nfs_server *       server;
 776         struct nfs_fattr *              fattr;
 777         struct nfs4_sequence_res        seq_res;
 778 };
 779
 780 struct nfs4_link_arg {
 781         const struct nfs_fh *           fh;
 782         const struct nfs_fh *           dir_fh;
 783         const struct qstr *             name;
 784         const u32 *                     bitmask;
 785         struct nfs4_sequence_args       seq_args;
 786 };
 787
 788 struct nfs4_link_res {
 789         const struct nfs_server *       server;
 790         struct nfs_fattr *              fattr;
 791         struct nfs4_change_info         cinfo;
 792         struct nfs_fattr *              dir_attr;
 793         struct nfs4_sequence_res        seq_res;
 794 };
 795
 796
 797 struct nfs4_lookup_arg {
 798         const struct nfs_fh *           dir_fh;
 799         const struct qstr *             name;
 800         const u32 *                     bitmask;
 801         struct nfs4_sequence_args       seq_args;
 802 };
 803
 804 struct nfs4_lookup_res {
 805         const struct nfs_server *       server;
 806         struct nfs_fattr *              fattr;
 807         struct nfs_fh *                 fh;
 808         struct nfs4_sequence_res        seq_res;
 809 };
 810
 811 struct nfs4_lookup_root_arg {
 812         const u32 *                     bitmask;
 813         struct nfs4_sequence_args       seq_args;
 814 };
 815
 816 struct nfs4_pathconf_arg {
 817         const struct nfs_fh *           fh;
 818         const u32 *                     bitmask;
 819         struct nfs4_sequence_args       seq_args;
 820 };
 821
 822 struct nfs4_pathconf_res {
 823         struct nfs_pathconf            *pathconf;
 824         struct nfs4_sequence_res        seq_res;
 825 };
 826
 827 struct nfs4_readdir_arg {
 828         const struct nfs_fh *           fh;
 829         u64                             cookie;
 830         nfs4_verifier                   verifier;
 831         u32                             count;
 832         struct page **                  pages;  /* zero-copy data */
 833         unsigned int                    pgbase; /* zero-copy data */
 834         const u32 *                     bitmask;
 835         int                             plus;
 836         struct nfs4_sequence_args       seq_args;
 837 };
 838
 839 struct nfs4_readdir_res {
 840         nfs4_verifier                   verifier;
 841         unsigned int                    pgbase;
 842         struct nfs4_sequence_res        seq_res;
 843 };
 844
 845 struct nfs4_readlink {
 846         const struct nfs_fh *           fh;
 847         unsigned int                    pgbase;
 848         unsigned int                    pglen;   /* zero-copy data */
 849         struct page **                  pages;   /* zero-copy data */
 850         struct nfs4_sequence_args       seq_args;
 851 };
 852
 853 struct nfs4_readlink_res {
 854         struct nfs4_sequence_res        seq_res;
 855 };
 856
 857 #define NFS4_SETCLIENTID_NAMELEN        (127)
 858 struct nfs4_setclientid {
 859         const nfs4_verifier *           sc_verifier;
 860         unsigned int                    sc_name_len;
 861         char                            sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
 862         u32                             sc_prog;
 863         unsigned int                    sc_netid_len;
 864         char                            sc_netid[RPCBIND_MAXNETIDLEN + 1];
 865         unsigned int                    sc_uaddr_len;
 866         char                            sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
 867         u32                             sc_cb_ident;
 868 };
 869
 870 struct nfs4_setclientid_res {
 871         u64                             clientid;
 872         nfs4_verifier                   confirm;
 873 };
 874
 875 struct nfs4_statfs_arg {
 876         const struct nfs_fh *           fh;
 877         const u32 *                     bitmask;
 878         struct nfs4_sequence_args       seq_args;
 879 };
 880
 881 struct nfs4_statfs_res {
 882         struct nfs_fsstat              *fsstat;
 883         struct nfs4_sequence_res        seq_res;
 884 };
 885
 886 struct nfs4_server_caps_arg {
 887         struct nfs_fh                  *fhandle;
 888         struct nfs4_sequence_args       seq_args;
 889 };
 890
 891 struct nfs4_server_caps_res {
 892         u32                             attr_bitmask[2];
 893         u32                             acl_bitmask;
 894         u32                             has_links;
 895         u32                             has_symlinks;
 896         struct nfs4_sequence_res        seq_res;
 897 };
 898
 899 struct nfs4_string {
 900         unsigned int len;
 901         char *data;
 902 };
 903
 904 #define NFS4_PATHNAME_MAXCOMPONENTS 512
 905 struct nfs4_pathname {
 906         unsigned int ncomponents;
 907         struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
 908 };
 909
 910 #define NFS4_FS_LOCATION_MAXSERVERS 10
 911 struct nfs4_fs_location {
 912         unsigned int nservers;
 913         struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
 914         struct nfs4_pathname rootpath;
 915 };
 916
 917 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
 918 struct nfs4_fs_locations {
 919         struct nfs_fattr fattr;
 920         const struct nfs_server *server;
 921         struct nfs4_pathname fs_path;
 922         int nlocations;
 923         struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
 924 };
 925
 926 struct nfs4_fs_locations_arg {
 927         const struct nfs_fh *dir_fh;
 928         const struct qstr *name;
 929         struct page *page;
 930         const u32 *bitmask;
 931         struct nfs4_sequence_args       seq_args;
 932 };
 933
 934 struct nfs4_fs_locations_res {
 935         struct nfs4_fs_locations       *fs_locations;
 936         struct nfs4_sequence_res        seq_res;
 937 };
 938
 939 #endif /* CONFIG_NFS_V4 */
 940
 941 struct nfstime4 {
 942         u64     seconds;
 943         u32     nseconds;
 944 };
 945
 946 #ifdef CONFIG_NFS_V4_1
 947 struct nfs_impl_id4 {
 948         u32             domain_len;
 949         char            *domain;
 950         u32             name_len;
 951         char            *name;
 952         struct nfstime4 date;
 953 };
 954
 955 #define NFS4_EXCHANGE_ID_LEN    (48)
 956 struct nfs41_exchange_id_args {
 957         struct nfs_client               *client;
 958         nfs4_verifier                   *verifier;
 959         unsigned int                    id_len;
 960         char                            id[NFS4_EXCHANGE_ID_LEN];
 961         u32                             flags;
 962 };
 963
 964 struct server_owner {
 965         uint64_t                        minor_id;
 966         uint32_t                        major_id_sz;
 967         char                            major_id[NFS4_OPAQUE_LIMIT];
 968 };
 969
 970 struct server_scope {
 971         uint32_t                        server_scope_sz;
 972         char                            server_scope[NFS4_OPAQUE_LIMIT];
 973 };
 974
 975 struct nfs41_exchange_id_res {
 976         struct nfs_client               *client;
 977         u32                             flags;
 978 };
 979
 980 struct nfs41_create_session_args {
 981         struct nfs_client              *client;
 982         uint32_t                        flags;
 983         uint32_t                        cb_program;
 984         struct nfs4_channel_attrs       fc_attrs;       /* Fore Channel */
 985         struct nfs4_channel_attrs       bc_attrs;       /* Back Channel */
 986 };
 987
 988 struct nfs41_create_session_res {
 989         struct nfs_client              *client;
 990 };
 991
 992 struct nfs41_reclaim_complete_args {
 993         /* In the future extend to include curr_fh for use with migration */
 994         unsigned char                   one_fs:1;
 995         struct nfs4_sequence_args       seq_args;
 996 };
 997
 998 struct nfs41_reclaim_complete_res {
 999         struct nfs4_sequence_res        seq_res;
1000 };
1001 #endif /* CONFIG_NFS_V4_1 */
1002
1003 struct nfs_page;
1004
1005 #define NFS_PAGEVEC_SIZE        (8U)
1006
1007 struct nfs_read_data {
1008         int                     flags;
1009         struct rpc_task         task;
1010         struct inode            *inode;
1011         struct rpc_cred         *cred;
1012         struct nfs_fattr        fattr;  /* fattr storage */
1013         struct list_head        pages;  /* Coalesced read requests */
1014         struct nfs_page         *req;   /* multi ops per nfs_page */
1015         struct page             **pagevec;
1016         unsigned int            npages; /* Max length of pagevec */
1017         struct nfs_readargs args;
1018         struct nfs_readres  res;
1019 #ifdef CONFIG_NFS_V4
1020         unsigned long           timestamp;      /* For lease renewal */
1021 #endif
1022         struct page             *page_array[NFS_PAGEVEC_SIZE];
1023 };
1024
1025 struct nfs_write_data {
1026         int                     flags;
1027         struct rpc_task         task;
1028         struct inode            *inode;
1029         struct rpc_cred         *cred;
1030         struct nfs_fattr        fattr;
1031         struct nfs_writeverf    verf;
1032         struct list_head        pages;          /* Coalesced requests we wish to flush */
1033         struct nfs_page         *req;           /* multi ops per nfs_page */
1034         struct page             **pagevec;
1035         unsigned int            npages;         /* Max length of pagevec */
1036         struct nfs_writeargs    args;           /* argument struct */
1037         struct nfs_writeres     res;            /* result struct */
1038 #ifdef CONFIG_NFS_V4
1039         unsigned long           timestamp;      /* For lease renewal */
1040 #endif
1041         struct page             *page_array[NFS_PAGEVEC_SIZE];
1042 };
1043
1044 struct nfs_access_entry;
1045
1046 /*
1047  * RPC procedure vector for NFSv2/NFSv3 demuxing
1048  */
1049 struct nfs_rpc_ops {
1050         u32     version;                /* Protocol version */
1051         const struct dentry_operations *dentry_ops;
1052         const struct inode_operations *dir_inode_ops;
1053         const struct inode_operations *file_inode_ops;
1054
1055         int     (*getroot) (struct nfs_server *, struct nfs_fh *,
1056                             struct nfs_fsinfo *);
1057         int     (*lookupfh)(struct nfs_server *, struct nfs_fh *,
1058                             struct qstr *, struct nfs_fh *,
1059                             struct nfs_fattr *);
1060         int     (*getattr) (struct nfs_server *, struct nfs_fh *,
1061                             struct nfs_fattr *);
1062         int     (*setattr) (struct dentry *, struct nfs_fattr *,
1063                             struct iattr *);
1064         int     (*lookup)  (struct inode *, struct qstr *,
1065                             struct nfs_fh *, struct nfs_fattr *);
1066         int     (*access)  (struct inode *, struct nfs_access_entry *);
1067         int     (*readlink)(struct inode *, struct page *, unsigned int,
1068                             unsigned int);
1069         int     (*create)  (struct inode *, struct dentry *,
1070                             struct iattr *, int, struct nfs_open_context *);
1071         int     (*remove)  (struct inode *, struct qstr *);
1072         void    (*unlink_setup)  (struct rpc_message *, struct inode *dir);
1073         int     (*unlink_done) (struct rpc_task *, struct inode *);
1074         int     (*rename)  (struct inode *, struct qstr *,
1075                             struct inode *, struct qstr *);
1076         void    (*rename_setup)  (struct rpc_message *msg, struct inode *dir);
1077         int     (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1078         int     (*link)    (struct inode *, struct inode *, struct qstr *);
1079         int     (*symlink) (struct inode *, struct dentry *, struct page *,
1080                             unsigned int, struct iattr *);
1081         int     (*mkdir)   (struct inode *, struct dentry *, struct iattr *);
1082         int     (*rmdir)   (struct inode *, struct qstr *);
1083         int     (*readdir) (struct dentry *, struct rpc_cred *,
1084                             u64, struct page **, unsigned int, int);
1085         int     (*mknod)   (struct inode *, struct dentry *, struct iattr *,
1086                             dev_t);
1087         int     (*statfs)  (struct nfs_server *, struct nfs_fh *,
1088                             struct nfs_fsstat *);
1089         int     (*fsinfo)  (struct nfs_server *, struct nfs_fh *,
1090                             struct nfs_fsinfo *);
1091         int     (*pathconf) (struct nfs_server *, struct nfs_fh *,
1092                              struct nfs_pathconf *);
1093         int     (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1094         int     (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1095         void    (*read_setup)   (struct nfs_read_data *, struct rpc_message *);
1096         int     (*read_done)  (struct rpc_task *, struct nfs_read_data *);
1097         void    (*write_setup)  (struct nfs_write_data *, struct rpc_message *);
1098         int     (*write_done)  (struct rpc_task *, struct nfs_write_data *);
1099         void    (*commit_setup) (struct nfs_write_data *, struct rpc_message *);
1100         int     (*commit_done) (struct rpc_task *, struct nfs_write_data *);
1101         int     (*lock)(struct file *, int, struct file_lock *);
1102         int     (*lock_check_bounds)(const struct file_lock *);
1103         void    (*clear_acl_cache)(struct inode *);
1104         void    (*close_context)(struct nfs_open_context *ctx, int);
1105         struct inode * (*open_context) (struct inode *dir,
1106                                 struct nfs_open_context *ctx,
1107                                 int open_flags,
1108                                 struct iattr *iattr);
1109 };
1110
1111 /*
1112  *      NFS_CALL(getattr, inode, (fattr));
1113  * into
1114  *      NFS_PROTO(inode)->getattr(fattr);
1115  */
1116 #define NFS_CALL(op, inode, args)       NFS_PROTO(inode)->op args
1117
1118 /*
1119  * Function vectors etc. for the NFS client
1120  */
1121 extern const struct nfs_rpc_ops nfs_v2_clientops;
1122 extern const struct nfs_rpc_ops nfs_v3_clientops;
1123 extern const struct nfs_rpc_ops nfs_v4_clientops;
1124 extern struct rpc_version       nfs_version2;
1125 extern struct rpc_version       nfs_version3;
1126 extern struct rpc_version       nfs_version4;
1127
1128 extern struct rpc_version       nfsacl_version3;
1129 extern struct rpc_program       nfsacl_program;
1130
1131 #endif