include/linux/nfs_xdr.h

   1 #ifndef _LINUX_NFS_XDR_H
   2 #define _LINUX_NFS_XDR_H
   3
   4 #include <linux/nfsacl.h>
   5
   6 /*
   7  * To change the maximum rsize and wsize supported by the NFS client, adjust
   8  * NFS_MAX_FILE_IO_SIZE.  64KB is a typical maximum, but some servers can
   9  * support a megabyte or more.  The default is left at 4096 bytes, which is
  10  * reasonable for NFS over UDP.
  11  */
  12 #define NFS_MAX_FILE_IO_SIZE    (1048576U)
  13 #define NFS_DEF_FILE_IO_SIZE    (4096U)
  14 #define NFS_MIN_FILE_IO_SIZE    (1024U)
  15
  16 struct nfs_fsid {
  17         uint64_t                major;
  18         uint64_t                minor;
  19 };
  20
  21 /*
  22  * Helper for checking equality between 2 fsids.
  23  */
  24 static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b)
  25 {
  26         return a->major == b->major && a->minor == b->minor;
  27 }
  28
  29 struct nfs_fattr {
  30         unsigned int            valid;          /* which fields are valid */
  31         umode_t                 mode;
  32         __u32                   nlink;
  33         __u32                   uid;
  34         __u32                   gid;
  35         dev_t                   rdev;
  36         __u64                   size;
  37         union {
  38                 struct {
  39                         __u32   blocksize;
  40                         __u32   blocks;
  41                 } nfs2;
  42                 struct {
  43                         __u64   used;
  44                 } nfs3;
  45         } du;
  46         struct nfs_fsid         fsid;
  47         __u64                   fileid;
  48         struct timespec         atime;
  49         struct timespec         mtime;
  50         struct timespec         ctime;
  51         __u64                   change_attr;    /* NFSv4 change attribute */
  52         __u64                   pre_change_attr;/* pre-op NFSv4 change attribute */
  53         __u64                   pre_size;       /* pre_op_attr.size       */
  54         struct timespec         pre_mtime;      /* pre_op_attr.mtime      */
  55         struct timespec         pre_ctime;      /* pre_op_attr.ctime      */
  56         unsigned long           time_start;
  57         unsigned long           gencount;
  58 };
  59
  60 #define NFS_ATTR_FATTR_TYPE             (1U << 0)
  61 #define NFS_ATTR_FATTR_MODE             (1U << 1)
  62 #define NFS_ATTR_FATTR_NLINK            (1U << 2)
  63 #define NFS_ATTR_FATTR_OWNER            (1U << 3)
  64 #define NFS_ATTR_FATTR_GROUP            (1U << 4)
  65 #define NFS_ATTR_FATTR_RDEV             (1U << 5)
  66 #define NFS_ATTR_FATTR_SIZE             (1U << 6)
  67 #define NFS_ATTR_FATTR_PRESIZE          (1U << 7)
  68 #define NFS_ATTR_FATTR_BLOCKS_USED      (1U << 8)
  69 #define NFS_ATTR_FATTR_SPACE_USED       (1U << 9)
  70 #define NFS_ATTR_FATTR_FSID             (1U << 10)
  71 #define NFS_ATTR_FATTR_FILEID           (1U << 11)
  72 #define NFS_ATTR_FATTR_ATIME            (1U << 12)
  73 #define NFS_ATTR_FATTR_MTIME            (1U << 13)
  74 #define NFS_ATTR_FATTR_CTIME            (1U << 14)
  75 #define NFS_ATTR_FATTR_PREMTIME         (1U << 15)
  76 #define NFS_ATTR_FATTR_PRECTIME         (1U << 16)
  77 #define NFS_ATTR_FATTR_CHANGE           (1U << 17)
  78 #define NFS_ATTR_FATTR_PRECHANGE        (1U << 18)
  79 #define NFS_ATTR_FATTR_V4_REFERRAL      (1U << 19)      /* NFSv4 referral */
  80
  81 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
  82                 | NFS_ATTR_FATTR_MODE \
  83                 | NFS_ATTR_FATTR_NLINK \
  84                 | NFS_ATTR_FATTR_OWNER \
  85                 | NFS_ATTR_FATTR_GROUP \
  86                 | NFS_ATTR_FATTR_RDEV \
  87                 | NFS_ATTR_FATTR_SIZE \
  88                 | NFS_ATTR_FATTR_FSID \
  89                 | NFS_ATTR_FATTR_FILEID \
  90                 | NFS_ATTR_FATTR_ATIME \
  91                 | NFS_ATTR_FATTR_MTIME \
  92                 | NFS_ATTR_FATTR_CTIME)
  93 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
  94                 | NFS_ATTR_FATTR_BLOCKS_USED)
  95 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
  96                 | NFS_ATTR_FATTR_SPACE_USED)
  97 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
  98                 | NFS_ATTR_FATTR_SPACE_USED \
  99                 | NFS_ATTR_FATTR_CHANGE)
 100
 101 /*
 102  * Info on the file system
 103  */
 104 struct nfs_fsinfo {
 105         struct nfs_fattr        *fattr; /* Post-op attributes */
 106         __u32                   rtmax;  /* max.  read transfer size */
 107         __u32                   rtpref; /* pref. read transfer size */
 108         __u32                   rtmult; /* reads should be multiple of this */
 109         __u32                   wtmax;  /* max.  write transfer size */
 110         __u32                   wtpref; /* pref. write transfer size */
 111         __u32                   wtmult; /* writes should be multiple of this */
 112         __u32                   dtpref; /* pref. readdir transfer size */
 113         __u64                   maxfilesize;
 114         __u32                   lease_time; /* in seconds */
 115 };
 116
 117 struct nfs_fsstat {
 118         struct nfs_fattr        *fattr; /* Post-op attributes */
 119         __u64                   tbytes; /* total size in bytes */
 120         __u64                   fbytes; /* # of free bytes */
 121         __u64                   abytes; /* # of bytes available to user */
 122         __u64                   tfiles; /* # of files */
 123         __u64                   ffiles; /* # of free files */
 124         __u64                   afiles; /* # of files available to user */
 125 };
 126
 127 struct nfs2_fsstat {
 128         __u32                   tsize;  /* Server transfer size */
 129         __u32                   bsize;  /* Filesystem block size */
 130         __u32                   blocks; /* No. of "bsize" blocks on filesystem */
 131         __u32                   bfree;  /* No. of free "bsize" blocks */
 132         __u32                   bavail; /* No. of available "bsize" blocks */
 133 };
 134
 135 struct nfs_pathconf {
 136         struct nfs_fattr        *fattr; /* Post-op attributes */
 137         __u32                   max_link; /* max # of hard links */
 138         __u32                   max_namelen; /* max name length */
 139 };
 140
 141 struct nfs4_change_info {
 142         u32                     atomic;
 143         u64                     before;
 144         u64                     after;
 145 };
 146
 147 struct nfs_seqid;
 148
 149 /* nfs41 sessions channel attributes */
 150 struct nfs4_channel_attrs {
 151         u32                     headerpadsz;
 152         u32                     max_rqst_sz;
 153         u32                     max_resp_sz;
 154         u32                     max_resp_sz_cached;
 155         u32                     max_ops;
 156         u32                     max_reqs;
 157 };
 158
 159 /* nfs41 sessions slot seqid */
 160 struct nfs4_slot {
 161         u32                     seq_nr;
 162 };
 163
 164 struct nfs4_sequence_args {
 165         struct nfs4_session     *sa_session;
 166 };
 167
 168 struct nfs4_sequence_res {
 169         struct nfs4_session     *sr_session;
 170 };
 171
 172 /*
 173  * Arguments to the open call.
 174  */
 175 struct nfs_openargs {
 176         const struct nfs_fh *   fh;
 177         struct nfs_seqid *      seqid;
 178         int                     open_flags;
 179         fmode_t                 fmode;
 180         __u64                   clientid;
 181         __u64                   id;
 182         union {
 183                 struct iattr *  attrs;    /* UNCHECKED, GUARDED */
 184                 nfs4_verifier   verifier; /* EXCLUSIVE */
 185                 nfs4_stateid    delegation;             /* CLAIM_DELEGATE_CUR */
 186                 fmode_t         delegation_type;        /* CLAIM_PREVIOUS */
 187         } u;
 188         const struct qstr *     name;
 189         const struct nfs_server *server;         /* Needed for ID mapping */
 190         const u32 *             bitmask;
 191         __u32                   claim;
 192         struct nfs4_sequence_args       seq_args;
 193 };
 194
 195 struct nfs_openres {
 196         nfs4_stateid            stateid;
 197         struct nfs_fh           fh;
 198         struct nfs4_change_info cinfo;
 199         __u32                   rflags;
 200         struct nfs_fattr *      f_attr;
 201         struct nfs_fattr *      dir_attr;
 202         struct nfs_seqid *      seqid;
 203         const struct nfs_server *server;
 204         fmode_t                 delegation_type;
 205         nfs4_stateid            delegation;
 206         __u32                   do_recall;
 207         __u64                   maxsize;
 208         __u32                   attrset[NFS4_BITMAP_SIZE];
 209         struct nfs4_sequence_res        seq_res;
 210 };
 211
 212 /*
 213  * Arguments to the open_confirm call.
 214  */
 215 struct nfs_open_confirmargs {
 216         const struct nfs_fh *   fh;
 217         nfs4_stateid *          stateid;
 218         struct nfs_seqid *      seqid;
 219 };
 220
 221 struct nfs_open_confirmres {
 222         nfs4_stateid            stateid;
 223         struct nfs_seqid *      seqid;
 224 };
 225
 226 /*
 227  * Arguments to the close call.
 228  */
 229 struct nfs_closeargs {
 230         struct nfs_fh *         fh;
 231         nfs4_stateid *          stateid;
 232         struct nfs_seqid *      seqid;
 233         fmode_t                 fmode;
 234         const u32 *             bitmask;
 235         struct nfs4_sequence_args       seq_args;
 236 };
 237
 238 struct nfs_closeres {
 239         nfs4_stateid            stateid;
 240         struct nfs_fattr *      fattr;
 241         struct nfs_seqid *      seqid;
 242         const struct nfs_server *server;
 243         struct nfs4_sequence_res        seq_res;
 244 };
 245 /*
 246  *  * Arguments to the lock,lockt, and locku call.
 247  *   */
 248 struct nfs_lowner {
 249         __u64                   clientid;
 250         __u64                   id;
 251 };
 252
 253 struct nfs_lock_args {
 254         struct nfs_fh *         fh;
 255         struct file_lock *      fl;
 256         struct nfs_seqid *      lock_seqid;
 257         nfs4_stateid *          lock_stateid;
 258         struct nfs_seqid *      open_seqid;
 259         nfs4_stateid *          open_stateid;
 260         struct nfs_lowner       lock_owner;
 261         unsigned char           block : 1;
 262         unsigned char           reclaim : 1;
 263         unsigned char           new_lock_owner : 1;
 264         struct nfs4_sequence_args       seq_args;
 265 };
 266
 267 struct nfs_lock_res {
 268         nfs4_stateid            stateid;
 269         struct nfs_seqid *      lock_seqid;
 270         struct nfs_seqid *      open_seqid;
 271         struct nfs4_sequence_res        seq_res;
 272 };
 273
 274 struct nfs_locku_args {
 275         struct nfs_fh *         fh;
 276         struct file_lock *      fl;
 277         struct nfs_seqid *      seqid;
 278         nfs4_stateid *          stateid;
 279         struct nfs4_sequence_args       seq_args;
 280 };
 281
 282 struct nfs_locku_res {
 283         nfs4_stateid            stateid;
 284         struct nfs_seqid *      seqid;
 285         struct nfs4_sequence_res        seq_res;
 286 };
 287
 288 struct nfs_lockt_args {
 289         struct nfs_fh *         fh;
 290         struct file_lock *      fl;
 291         struct nfs_lowner       lock_owner;
 292         struct nfs4_sequence_args       seq_args;
 293 };
 294
 295 struct nfs_lockt_res {
 296         struct file_lock *      denied; /* LOCK, LOCKT failed */
 297         struct nfs4_sequence_res        seq_res;
 298 };
 299
 300 struct nfs4_delegreturnargs {
 301         const struct nfs_fh *fhandle;
 302         const nfs4_stateid *stateid;
 303         const u32 * bitmask;
 304         struct nfs4_sequence_args       seq_args;
 305 };
 306
 307 struct nfs4_delegreturnres {
 308         struct nfs_fattr * fattr;
 309         const struct nfs_server *server;
 310         struct nfs4_sequence_res        seq_res;
 311 };
 312
 313 /*
 314  * Arguments to the read call.
 315  */
 316 struct nfs_readargs {
 317         struct nfs_fh *         fh;
 318         struct nfs_open_context *context;
 319         __u64                   offset;
 320         __u32                   count;
 321         unsigned int            pgbase;
 322         struct page **          pages;
 323         struct nfs4_sequence_args       seq_args;
 324 };
 325
 326 struct nfs_readres {
 327         struct nfs_fattr *      fattr;
 328         __u32                   count;
 329         int                     eof;
 330         struct nfs4_sequence_res        seq_res;
 331 };
 332
 333 /*
 334  * Arguments to the write call.
 335  */
 336 struct nfs_writeargs {
 337         struct nfs_fh *         fh;
 338         struct nfs_open_context *context;
 339         __u64                   offset;
 340         __u32                   count;
 341         enum nfs3_stable_how    stable;
 342         unsigned int            pgbase;
 343         struct page **          pages;
 344         const u32 *             bitmask;
 345         struct nfs4_sequence_args       seq_args;
 346 };
 347
 348 struct nfs_writeverf {
 349         enum nfs3_stable_how    committed;
 350         __be32                  verifier[2];
 351 };
 352
 353 struct nfs_writeres {
 354         struct nfs_fattr *      fattr;
 355         struct nfs_writeverf *  verf;
 356         __u32                   count;
 357         const struct nfs_server *server;
 358         struct nfs4_sequence_res        seq_res;
 359 };
 360
 361 /*
 362  * Common arguments to the unlink call
 363  */
 364 struct nfs_removeargs {
 365         const struct nfs_fh     *fh;
 366         struct qstr             name;
 367         const u32 *             bitmask;
 368         struct nfs4_sequence_args       seq_args;
 369 };
 370
 371 struct nfs_removeres {
 372         const struct nfs_server *server;
 373         struct nfs4_change_info cinfo;
 374         struct nfs_fattr        dir_attr;
 375         struct nfs4_sequence_res        seq_res;
 376 };
 377
 378 /*
 379  * Argument struct for decode_entry function
 380  */
 381 struct nfs_entry {
 382         __u64                   ino;
 383         __u64                   cookie,
 384                                 prev_cookie;
 385         const char *            name;
 386         unsigned int            len;
 387         int                     eof;
 388         struct nfs_fh *         fh;
 389         struct nfs_fattr *      fattr;
 390 };
 391
 392 /*
 393  * The following types are for NFSv2 only.
 394  */
 395 struct nfs_sattrargs {
 396         struct nfs_fh *         fh;
 397         struct iattr *          sattr;
 398 };
 399
 400 struct nfs_diropargs {
 401         struct nfs_fh *         fh;
 402         const char *            name;
 403         unsigned int            len;
 404 };
 405
 406 struct nfs_createargs {
 407         struct nfs_fh *         fh;
 408         const char *            name;
 409         unsigned int            len;
 410         struct iattr *          sattr;
 411 };
 412
 413 struct nfs_renameargs {
 414         struct nfs_fh *         fromfh;
 415         const char *            fromname;
 416         unsigned int            fromlen;
 417         struct nfs_fh *         tofh;
 418         const char *            toname;
 419         unsigned int            tolen;
 420 };
 421
 422 struct nfs_setattrargs {
 423         struct nfs_fh *                 fh;
 424         nfs4_stateid                    stateid;
 425         struct iattr *                  iap;
 426         const struct nfs_server *       server; /* Needed for name mapping */
 427         const u32 *                     bitmask;
 428         struct nfs4_sequence_args       seq_args;
 429 };
 430
 431 struct nfs_setaclargs {
 432         struct nfs_fh *                 fh;
 433         size_t                          acl_len;
 434         unsigned int                    acl_pgbase;
 435         struct page **                  acl_pages;
 436         struct nfs4_sequence_args       seq_args;
 437 };
 438
 439 struct nfs_setaclres {
 440         struct nfs4_sequence_res        seq_res;
 441 };
 442
 443 struct nfs_getaclargs {
 444         struct nfs_fh *                 fh;
 445         size_t                          acl_len;
 446         unsigned int                    acl_pgbase;
 447         struct page **                  acl_pages;
 448         struct nfs4_sequence_args       seq_args;
 449 };
 450
 451 struct nfs_getaclres {
 452         size_t                          acl_len;
 453         struct nfs4_sequence_res        seq_res;
 454 };
 455
 456 struct nfs_setattrres {
 457         struct nfs_fattr *              fattr;
 458         const struct nfs_server *       server;
 459         struct nfs4_sequence_res        seq_res;
 460 };
 461
 462 struct nfs_linkargs {
 463         struct nfs_fh *         fromfh;
 464         struct nfs_fh *         tofh;
 465         const char *            toname;
 466         unsigned int            tolen;
 467 };
 468
 469 struct nfs_symlinkargs {
 470         struct nfs_fh *         fromfh;
 471         const char *            fromname;
 472         unsigned int            fromlen;
 473         struct page **          pages;
 474         unsigned int            pathlen;
 475         struct iattr *          sattr;
 476 };
 477
 478 struct nfs_readdirargs {
 479         struct nfs_fh *         fh;
 480         __u32                   cookie;
 481         unsigned int            count;
 482         struct page **          pages;
 483 };
 484
 485 struct nfs3_getaclargs {
 486         struct nfs_fh *         fh;
 487         int                     mask;
 488         struct page **          pages;
 489 };
 490
 491 struct nfs3_setaclargs {
 492         struct inode *          inode;
 493         int                     mask;
 494         struct posix_acl *      acl_access;
 495         struct posix_acl *      acl_default;
 496         size_t                  len;
 497         unsigned int            npages;
 498         struct page **          pages;
 499 };
 500
 501 struct nfs_diropok {
 502         struct nfs_fh *         fh;
 503         struct nfs_fattr *      fattr;
 504 };
 505
 506 struct nfs_readlinkargs {
 507         struct nfs_fh *         fh;
 508         unsigned int            pgbase;
 509         unsigned int            pglen;
 510         struct page **          pages;
 511 };
 512
 513 struct nfs3_sattrargs {
 514         struct nfs_fh *         fh;
 515         struct iattr *          sattr;
 516         unsigned int            guard;
 517         struct timespec         guardtime;
 518 };
 519
 520 struct nfs3_diropargs {
 521         struct nfs_fh *         fh;
 522         const char *            name;
 523         unsigned int            len;
 524 };
 525
 526 struct nfs3_accessargs {
 527         struct nfs_fh *         fh;
 528         __u32                   access;
 529 };
 530
 531 struct nfs3_createargs {
 532         struct nfs_fh *         fh;
 533         const char *            name;
 534         unsigned int            len;
 535         struct iattr *          sattr;
 536         enum nfs3_createmode    createmode;
 537         __be32                  verifier[2];
 538 };
 539
 540 struct nfs3_mkdirargs {
 541         struct nfs_fh *         fh;
 542         const char *            name;
 543         unsigned int            len;
 544         struct iattr *          sattr;
 545 };
 546
 547 struct nfs3_symlinkargs {
 548         struct nfs_fh *         fromfh;
 549         const char *            fromname;
 550         unsigned int            fromlen;
 551         struct page **          pages;
 552         unsigned int            pathlen;
 553         struct iattr *          sattr;
 554 };
 555
 556 struct nfs3_mknodargs {
 557         struct nfs_fh *         fh;
 558         const char *            name;
 559         unsigned int            len;
 560         enum nfs3_ftype         type;
 561         struct iattr *          sattr;
 562         dev_t                   rdev;
 563 };
 564
 565 struct nfs3_renameargs {
 566         struct nfs_fh *         fromfh;
 567         const char *            fromname;
 568         unsigned int            fromlen;
 569         struct nfs_fh *         tofh;
 570         const char *            toname;
 571         unsigned int            tolen;
 572 };
 573
 574 struct nfs3_linkargs {
 575         struct nfs_fh *         fromfh;
 576         struct nfs_fh *         tofh;
 577         const char *            toname;
 578         unsigned int            tolen;
 579 };
 580
 581 struct nfs3_readdirargs {
 582         struct nfs_fh *         fh;
 583         __u64                   cookie;
 584         __be32                  verf[2];
 585         int                     plus;
 586         unsigned int            count;
 587         struct page **          pages;
 588 };
 589
 590 struct nfs3_diropres {
 591         struct nfs_fattr *      dir_attr;
 592         struct nfs_fh *         fh;
 593         struct nfs_fattr *      fattr;
 594 };
 595
 596 struct nfs3_accessres {
 597         struct nfs_fattr *      fattr;
 598         __u32                   access;
 599 };
 600
 601 struct nfs3_readlinkargs {
 602         struct nfs_fh *         fh;
 603         unsigned int            pgbase;
 604         unsigned int            pglen;
 605         struct page **          pages;
 606 };
 607
 608 struct nfs3_renameres {
 609         struct nfs_fattr *      fromattr;
 610         struct nfs_fattr *      toattr;
 611 };
 612
 613 struct nfs3_linkres {
 614         struct nfs_fattr *      dir_attr;
 615         struct nfs_fattr *      fattr;
 616 };
 617
 618 struct nfs3_readdirres {
 619         struct nfs_fattr *      dir_attr;
 620         __be32 *                verf;
 621         int                     plus;
 622 };
 623
 624 struct nfs3_getaclres {
 625         struct nfs_fattr *      fattr;
 626         int                     mask;
 627         unsigned int            acl_access_count;
 628         unsigned int            acl_default_count;
 629         struct posix_acl *      acl_access;
 630         struct posix_acl *      acl_default;
 631 };
 632
 633 #ifdef CONFIG_NFS_V4
 634
 635 typedef u64 clientid4;
 636
 637 struct nfs4_accessargs {
 638         const struct nfs_fh *           fh;
 639         const u32 *                     bitmask;
 640         u32                             access;
 641         struct nfs4_sequence_args       seq_args;
 642 };
 643
 644 struct nfs4_accessres {
 645         const struct nfs_server *       server;
 646         struct nfs_fattr *              fattr;
 647         u32                             supported;
 648         u32                             access;
 649         struct nfs4_sequence_res        seq_res;
 650 };
 651
 652 struct nfs4_create_arg {
 653         u32                             ftype;
 654         union {
 655                 struct {
 656                         struct page **  pages;
 657                         unsigned int    len;
 658                 } symlink;   /* NF4LNK */
 659                 struct {
 660                         u32             specdata1;
 661                         u32             specdata2;
 662                 } device;    /* NF4BLK, NF4CHR */
 663         } u;
 664         const struct qstr *             name;
 665         const struct nfs_server *       server;
 666         const struct iattr *            attrs;
 667         const struct nfs_fh *           dir_fh;
 668         const u32 *                     bitmask;
 669         struct nfs4_sequence_args       seq_args;
 670 };
 671
 672 struct nfs4_create_res {
 673         const struct nfs_server *       server;
 674         struct nfs_fh *                 fh;
 675         struct nfs_fattr *              fattr;
 676         struct nfs4_change_info         dir_cinfo;
 677         struct nfs_fattr *              dir_fattr;
 678         struct nfs4_sequence_res        seq_res;
 679 };
 680
 681 struct nfs4_fsinfo_arg {
 682         const struct nfs_fh *           fh;
 683         const u32 *                     bitmask;
 684         struct nfs4_sequence_args       seq_args;
 685 };
 686
 687 struct nfs4_fsinfo_res {
 688         struct nfs_fsinfo              *fsinfo;
 689         struct nfs4_sequence_res        seq_res;
 690 };
 691
 692 struct nfs4_getattr_arg {
 693         const struct nfs_fh *           fh;
 694         const u32 *                     bitmask;
 695         struct nfs4_sequence_args       seq_args;
 696 };
 697
 698 struct nfs4_getattr_res {
 699         const struct nfs_server *       server;
 700         struct nfs_fattr *              fattr;
 701         struct nfs4_sequence_res        seq_res;
 702 };
 703
 704 struct nfs4_link_arg {
 705         const struct nfs_fh *           fh;
 706         const struct nfs_fh *           dir_fh;
 707         const struct qstr *             name;
 708         const u32 *                     bitmask;
 709         struct nfs4_sequence_args       seq_args;
 710 };
 711
 712 struct nfs4_link_res {
 713         const struct nfs_server *       server;
 714         struct nfs_fattr *              fattr;
 715         struct nfs4_change_info         cinfo;
 716         struct nfs_fattr *              dir_attr;
 717         struct nfs4_sequence_res        seq_res;
 718 };
 719
 720
 721 struct nfs4_lookup_arg {
 722         const struct nfs_fh *           dir_fh;
 723         const struct qstr *             name;
 724         const u32 *                     bitmask;
 725         struct nfs4_sequence_args       seq_args;
 726 };
 727
 728 struct nfs4_lookup_res {
 729         const struct nfs_server *       server;
 730         struct nfs_fattr *              fattr;
 731         struct nfs_fh *                 fh;
 732         struct nfs4_sequence_res        seq_res;
 733 };
 734
 735 struct nfs4_lookup_root_arg {
 736         const u32 *                     bitmask;
 737         struct nfs4_sequence_args       seq_args;
 738 };
 739
 740 struct nfs4_pathconf_arg {
 741         const struct nfs_fh *           fh;
 742         const u32 *                     bitmask;
 743         struct nfs4_sequence_args       seq_args;
 744 };
 745
 746 struct nfs4_pathconf_res {
 747         struct nfs_pathconf            *pathconf;
 748         struct nfs4_sequence_res        seq_res;
 749 };
 750
 751 struct nfs4_readdir_arg {
 752         const struct nfs_fh *           fh;
 753         u64                             cookie;
 754         nfs4_verifier                   verifier;
 755         u32                             count;
 756         struct page **                  pages;  /* zero-copy data */
 757         unsigned int                    pgbase; /* zero-copy data */
 758         const u32 *                     bitmask;
 759         struct nfs4_sequence_args       seq_args;
 760 };
 761
 762 struct nfs4_readdir_res {
 763         nfs4_verifier                   verifier;
 764         unsigned int                    pgbase;
 765         struct nfs4_sequence_res        seq_res;
 766 };
 767
 768 struct nfs4_readlink {
 769         const struct nfs_fh *           fh;
 770         unsigned int                    pgbase;
 771         unsigned int                    pglen;   /* zero-copy data */
 772         struct page **                  pages;   /* zero-copy data */
 773         struct nfs4_sequence_args       seq_args;
 774 };
 775
 776 struct nfs4_readlink_res {
 777         struct nfs4_sequence_res        seq_res;
 778 };
 779
 780 struct nfs4_rename_arg {
 781         const struct nfs_fh *           old_dir;
 782         const struct nfs_fh *           new_dir;
 783         const struct qstr *             old_name;
 784         const struct qstr *             new_name;
 785         const u32 *                     bitmask;
 786         struct nfs4_sequence_args       seq_args;
 787 };
 788
 789 struct nfs4_rename_res {
 790         const struct nfs_server *       server;
 791         struct nfs4_change_info         old_cinfo;
 792         struct nfs_fattr *              old_fattr;
 793         struct nfs4_change_info         new_cinfo;
 794         struct nfs_fattr *              new_fattr;
 795         struct nfs4_sequence_res        seq_res;
 796 };
 797
 798 #define NFS4_SETCLIENTID_NAMELEN        (127)
 799 struct nfs4_setclientid {
 800         const nfs4_verifier *           sc_verifier;
 801         unsigned int                    sc_name_len;
 802         char                            sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
 803         u32                             sc_prog;
 804         unsigned int                    sc_netid_len;
 805         char                            sc_netid[RPCBIND_MAXNETIDLEN + 1];
 806         unsigned int                    sc_uaddr_len;
 807         char                            sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
 808         u32                             sc_cb_ident;
 809 };
 810
 811 struct nfs4_statfs_arg {
 812         const struct nfs_fh *           fh;
 813         const u32 *                     bitmask;
 814         struct nfs4_sequence_args       seq_args;
 815 };
 816
 817 struct nfs4_statfs_res {
 818         struct nfs_fsstat              *fsstat;
 819         struct nfs4_sequence_res        seq_res;
 820 };
 821
 822 struct nfs4_server_caps_arg {
 823         struct nfs_fh                  *fhandle;
 824         struct nfs4_sequence_args       seq_args;
 825 };
 826
 827 struct nfs4_server_caps_res {
 828         u32                             attr_bitmask[2];
 829         u32                             acl_bitmask;
 830         u32                             has_links;
 831         u32                             has_symlinks;
 832         struct nfs4_sequence_res        seq_res;
 833 };
 834
 835 struct nfs4_string {
 836         unsigned int len;
 837         char *data;
 838 };
 839
 840 #define NFS4_PATHNAME_MAXCOMPONENTS 512
 841 struct nfs4_pathname {
 842         unsigned int ncomponents;
 843         struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
 844 };
 845
 846 #define NFS4_FS_LOCATION_MAXSERVERS 10
 847 struct nfs4_fs_location {
 848         unsigned int nservers;
 849         struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
 850         struct nfs4_pathname rootpath;
 851 };
 852
 853 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
 854 struct nfs4_fs_locations {
 855         struct nfs_fattr fattr;
 856         const struct nfs_server *server;
 857         struct nfs4_pathname fs_path;
 858         int nlocations;
 859         struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
 860 };
 861
 862 struct nfs4_fs_locations_arg {
 863         const struct nfs_fh *dir_fh;
 864         const struct qstr *name;
 865         struct page *page;
 866         const u32 *bitmask;
 867         struct nfs4_sequence_args       seq_args;
 868 };
 869
 870 struct nfs4_fs_locations_res {
 871         struct nfs4_fs_locations       *fs_locations;
 872         struct nfs4_sequence_res        seq_res;
 873 };
 874
 875 #endif /* CONFIG_NFS_V4 */
 876
 877 struct nfs_page;
 878
 879 #define NFS_PAGEVEC_SIZE        (8U)
 880
 881 struct nfs_read_data {
 882         int                     flags;
 883         struct rpc_task         task;
 884         struct inode            *inode;
 885         struct rpc_cred         *cred;
 886         struct nfs_fattr        fattr;  /* fattr storage */
 887         struct list_head        pages;  /* Coalesced read requests */
 888         struct nfs_page         *req;   /* multi ops per nfs_page */
 889         struct page             **pagevec;
 890         unsigned int            npages; /* Max length of pagevec */
 891         struct nfs_readargs args;
 892         struct nfs_readres  res;
 893 #ifdef CONFIG_NFS_V4
 894         unsigned long           timestamp;      /* For lease renewal */
 895 #endif
 896         struct page             *page_array[NFS_PAGEVEC_SIZE];
 897 };
 898
 899 struct nfs_write_data {
 900         int                     flags;
 901         struct rpc_task         task;
 902         struct inode            *inode;
 903         struct rpc_cred         *cred;
 904         struct nfs_fattr        fattr;
 905         struct nfs_writeverf    verf;
 906         struct list_head        pages;          /* Coalesced requests we wish to flush */
 907         struct nfs_page         *req;           /* multi ops per nfs_page */
 908         struct page             **pagevec;
 909         unsigned int            npages;         /* Max length of pagevec */
 910         struct nfs_writeargs    args;           /* argument struct */
 911         struct nfs_writeres     res;            /* result struct */
 912 #ifdef CONFIG_NFS_V4
 913         unsigned long           timestamp;      /* For lease renewal */
 914 #endif
 915         struct page             *page_array[NFS_PAGEVEC_SIZE];
 916 };
 917
 918 struct nfs_access_entry;
 919
 920 /*
 921  * RPC procedure vector for NFSv2/NFSv3 demuxing
 922  */
 923 struct nfs_rpc_ops {
 924         u32     version;                /* Protocol version */
 925         const struct dentry_operations *dentry_ops;
 926         const struct inode_operations *dir_inode_ops;
 927         const struct inode_operations *file_inode_ops;
 928
 929         int     (*getroot) (struct nfs_server *, struct nfs_fh *,
 930                             struct nfs_fsinfo *);
 931         int     (*lookupfh)(struct nfs_server *, struct nfs_fh *,
 932                             struct qstr *, struct nfs_fh *,
 933                             struct nfs_fattr *);
 934         int     (*getattr) (struct nfs_server *, struct nfs_fh *,
 935                             struct nfs_fattr *);
 936         int     (*setattr) (struct dentry *, struct nfs_fattr *,
 937                             struct iattr *);
 938         int     (*lookup)  (struct inode *, struct qstr *,
 939                             struct nfs_fh *, struct nfs_fattr *);
 940         int     (*access)  (struct inode *, struct nfs_access_entry *);
 941         int     (*readlink)(struct inode *, struct page *, unsigned int,
 942                             unsigned int);
 943         int     (*create)  (struct inode *, struct dentry *,
 944                             struct iattr *, int, struct nameidata *);
 945         int     (*remove)  (struct inode *, struct qstr *);
 946         void    (*unlink_setup)  (struct rpc_message *, struct inode *dir);
 947         int     (*unlink_done) (struct rpc_task *, struct inode *);
 948         int     (*rename)  (struct inode *, struct qstr *,
 949                             struct inode *, struct qstr *);
 950         int     (*link)    (struct inode *, struct inode *, struct qstr *);
 951         int     (*symlink) (struct inode *, struct dentry *, struct page *,
 952                             unsigned int, struct iattr *);
 953         int     (*mkdir)   (struct inode *, struct dentry *, struct iattr *);
 954         int     (*rmdir)   (struct inode *, struct qstr *);
 955         int     (*readdir) (struct dentry *, struct rpc_cred *,
 956                             u64, struct page *, unsigned int, int);
 957         int     (*mknod)   (struct inode *, struct dentry *, struct iattr *,
 958                             dev_t);
 959         int     (*statfs)  (struct nfs_server *, struct nfs_fh *,
 960                             struct nfs_fsstat *);
 961         int     (*fsinfo)  (struct nfs_server *, struct nfs_fh *,
 962                             struct nfs_fsinfo *);
 963         int     (*pathconf) (struct nfs_server *, struct nfs_fh *,
 964                              struct nfs_pathconf *);
 965         int     (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
 966         __be32 *(*decode_dirent)(__be32 *, struct nfs_entry *, int plus);
 967         void    (*read_setup)   (struct nfs_read_data *, struct rpc_message *);
 968         int     (*read_done)  (struct rpc_task *, struct nfs_read_data *);
 969         void    (*write_setup)  (struct nfs_write_data *, struct rpc_message *);
 970         int     (*write_done)  (struct rpc_task *, struct nfs_write_data *);
 971         void    (*commit_setup) (struct nfs_write_data *, struct rpc_message *);
 972         int     (*commit_done) (struct rpc_task *, struct nfs_write_data *);
 973         int     (*lock)(struct file *, int, struct file_lock *);
 974         int     (*lock_check_bounds)(const struct file_lock *);
 975         void    (*clear_acl_cache)(struct inode *);
 976         void    (*close_context)(struct nfs_open_context *ctx, int);
 977 };
 978
 979 /*
 980  *      NFS_CALL(getattr, inode, (fattr));
 981  * into
 982  *      NFS_PROTO(inode)->getattr(fattr);
 983  */
 984 #define NFS_CALL(op, inode, args)       NFS_PROTO(inode)->op args
 985
 986 /*
 987  * Function vectors etc. for the NFS client
 988  */
 989 extern const struct nfs_rpc_ops nfs_v2_clientops;
 990 extern const struct nfs_rpc_ops nfs_v3_clientops;
 991 extern const struct nfs_rpc_ops nfs_v4_clientops;
 992 extern struct rpc_version       nfs_version2;
 993 extern struct rpc_version       nfs_version3;
 994 extern struct rpc_version       nfs_version4;
 995
 996 extern struct rpc_version       nfsacl_version3;
 997 extern struct rpc_program       nfsacl_program;
 998
 999 #endif