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         u8                      sa_slotid;
 167         u8                      sa_cache_this;
 168 };
 169
 170 struct nfs4_sequence_res {
 171         struct nfs4_session     *sr_session;
 172         u8                      sr_slotid;      /* slot used to send request */
 173         int                     sr_status;      /* sequence operation status */
 174         unsigned long           sr_renewal_time;
 175         u32                     sr_status_flags;
 176 };
 177
 178 struct nfs4_get_lease_time_args {
 179         struct nfs4_sequence_args       la_seq_args;
 180 };
 181
 182 struct nfs4_get_lease_time_res {
 183         struct nfs_fsinfo              *lr_fsinfo;
 184         struct nfs4_sequence_res        lr_seq_res;
 185 };
 186
 187 /*
 188  * Arguments to the open call.
 189  */
 190 struct nfs_openargs {
 191         const struct nfs_fh *   fh;
 192         struct nfs_seqid *      seqid;
 193         int                     open_flags;
 194         fmode_t                 fmode;
 195         __u64                   clientid;
 196         __u64                   id;
 197         union {
 198                 struct iattr *  attrs;    /* UNCHECKED, GUARDED */
 199                 nfs4_verifier   verifier; /* EXCLUSIVE */
 200                 nfs4_stateid    delegation;             /* CLAIM_DELEGATE_CUR */
 201                 fmode_t         delegation_type;        /* CLAIM_PREVIOUS */
 202         } u;
 203         const struct qstr *     name;
 204         const struct nfs_server *server;         /* Needed for ID mapping */
 205         const u32 *             bitmask;
 206         __u32                   claim;
 207         struct nfs4_sequence_args       seq_args;
 208 };
 209
 210 struct nfs_openres {
 211         nfs4_stateid            stateid;
 212         struct nfs_fh           fh;
 213         struct nfs4_change_info cinfo;
 214         __u32                   rflags;
 215         struct nfs_fattr *      f_attr;
 216         struct nfs_fattr *      dir_attr;
 217         struct nfs_seqid *      seqid;
 218         const struct nfs_server *server;
 219         fmode_t                 delegation_type;
 220         nfs4_stateid            delegation;
 221         __u32                   do_recall;
 222         __u64                   maxsize;
 223         __u32                   attrset[NFS4_BITMAP_SIZE];
 224         struct nfs4_sequence_res        seq_res;
 225 };
 226
 227 /*
 228  * Arguments to the open_confirm call.
 229  */
 230 struct nfs_open_confirmargs {
 231         const struct nfs_fh *   fh;
 232         nfs4_stateid *          stateid;
 233         struct nfs_seqid *      seqid;
 234 };
 235
 236 struct nfs_open_confirmres {
 237         nfs4_stateid            stateid;
 238         struct nfs_seqid *      seqid;
 239 };
 240
 241 /*
 242  * Arguments to the close call.
 243  */
 244 struct nfs_closeargs {
 245         struct nfs_fh *         fh;
 246         nfs4_stateid *          stateid;
 247         struct nfs_seqid *      seqid;
 248         fmode_t                 fmode;
 249         const u32 *             bitmask;
 250         struct nfs4_sequence_args       seq_args;
 251 };
 252
 253 struct nfs_closeres {
 254         nfs4_stateid            stateid;
 255         struct nfs_fattr *      fattr;
 256         struct nfs_seqid *      seqid;
 257         const struct nfs_server *server;
 258         struct nfs4_sequence_res        seq_res;
 259 };
 260 /*
 261  *  * Arguments to the lock,lockt, and locku call.
 262  *   */
 263 struct nfs_lowner {
 264         __u64                   clientid;
 265         __u64                   id;
 266 };
 267
 268 struct nfs_lock_args {
 269         struct nfs_fh *         fh;
 270         struct file_lock *      fl;
 271         struct nfs_seqid *      lock_seqid;
 272         nfs4_stateid *          lock_stateid;
 273         struct nfs_seqid *      open_seqid;
 274         nfs4_stateid *          open_stateid;
 275         struct nfs_lowner       lock_owner;
 276         unsigned char           block : 1;
 277         unsigned char           reclaim : 1;
 278         unsigned char           new_lock_owner : 1;
 279         struct nfs4_sequence_args       seq_args;
 280 };
 281
 282 struct nfs_lock_res {
 283         nfs4_stateid            stateid;
 284         struct nfs_seqid *      lock_seqid;
 285         struct nfs_seqid *      open_seqid;
 286         struct nfs4_sequence_res        seq_res;
 287 };
 288
 289 struct nfs_locku_args {
 290         struct nfs_fh *         fh;
 291         struct file_lock *      fl;
 292         struct nfs_seqid *      seqid;
 293         nfs4_stateid *          stateid;
 294         struct nfs4_sequence_args       seq_args;
 295 };
 296
 297 struct nfs_locku_res {
 298         nfs4_stateid            stateid;
 299         struct nfs_seqid *      seqid;
 300         struct nfs4_sequence_res        seq_res;
 301 };
 302
 303 struct nfs_lockt_args {
 304         struct nfs_fh *         fh;
 305         struct file_lock *      fl;
 306         struct nfs_lowner       lock_owner;
 307         struct nfs4_sequence_args       seq_args;
 308 };
 309
 310 struct nfs_lockt_res {
 311         struct file_lock *      denied; /* LOCK, LOCKT failed */
 312         struct nfs4_sequence_res        seq_res;
 313 };
 314
 315 struct nfs4_delegreturnargs {
 316         const struct nfs_fh *fhandle;
 317         const nfs4_stateid *stateid;
 318         const u32 * bitmask;
 319         struct nfs4_sequence_args       seq_args;
 320 };
 321
 322 struct nfs4_delegreturnres {
 323         struct nfs_fattr * fattr;
 324         const struct nfs_server *server;
 325         struct nfs4_sequence_res        seq_res;
 326 };
 327
 328 /*
 329  * Arguments to the read call.
 330  */
 331 struct nfs_readargs {
 332         struct nfs_fh *         fh;
 333         struct nfs_open_context *context;
 334         __u64                   offset;
 335         __u32                   count;
 336         unsigned int            pgbase;
 337         struct page **          pages;
 338         struct nfs4_sequence_args       seq_args;
 339 };
 340
 341 struct nfs_readres {
 342         struct nfs_fattr *      fattr;
 343         __u32                   count;
 344         int                     eof;
 345         struct nfs4_sequence_res        seq_res;
 346 };
 347
 348 /*
 349  * Arguments to the write call.
 350  */
 351 struct nfs_writeargs {
 352         struct nfs_fh *         fh;
 353         struct nfs_open_context *context;
 354         __u64                   offset;
 355         __u32                   count;
 356         enum nfs3_stable_how    stable;
 357         unsigned int            pgbase;
 358         struct page **          pages;
 359         const u32 *             bitmask;
 360         struct nfs4_sequence_args       seq_args;
 361 };
 362
 363 struct nfs_writeverf {
 364         enum nfs3_stable_how    committed;
 365         __be32                  verifier[2];
 366 };
 367
 368 struct nfs_writeres {
 369         struct nfs_fattr *      fattr;
 370         struct nfs_writeverf *  verf;
 371         __u32                   count;
 372         const struct nfs_server *server;
 373         struct nfs4_sequence_res        seq_res;
 374 };
 375
 376 /*
 377  * Common arguments to the unlink call
 378  */
 379 struct nfs_removeargs {
 380         const struct nfs_fh     *fh;
 381         struct qstr             name;
 382         const u32 *             bitmask;
 383         struct nfs4_sequence_args       seq_args;
 384 };
 385
 386 struct nfs_removeres {
 387         const struct nfs_server *server;
 388         struct nfs4_change_info cinfo;
 389         struct nfs_fattr        dir_attr;
 390         struct nfs4_sequence_res        seq_res;
 391 };
 392
 393 /*
 394  * Argument struct for decode_entry function
 395  */
 396 struct nfs_entry {
 397         __u64                   ino;
 398         __u64                   cookie,
 399                                 prev_cookie;
 400         const char *            name;
 401         unsigned int            len;
 402         int                     eof;
 403         struct nfs_fh *         fh;
 404         struct nfs_fattr *      fattr;
 405 };
 406
 407 /*
 408  * The following types are for NFSv2 only.
 409  */
 410 struct nfs_sattrargs {
 411         struct nfs_fh *         fh;
 412         struct iattr *          sattr;
 413 };
 414
 415 struct nfs_diropargs {
 416         struct nfs_fh *         fh;
 417         const char *            name;
 418         unsigned int            len;
 419 };
 420
 421 struct nfs_createargs {
 422         struct nfs_fh *         fh;
 423         const char *            name;
 424         unsigned int            len;
 425         struct iattr *          sattr;
 426 };
 427
 428 struct nfs_renameargs {
 429         struct nfs_fh *         fromfh;
 430         const char *            fromname;
 431         unsigned int            fromlen;
 432         struct nfs_fh *         tofh;
 433         const char *            toname;
 434         unsigned int            tolen;
 435 };
 436
 437 struct nfs_setattrargs {
 438         struct nfs_fh *                 fh;
 439         nfs4_stateid                    stateid;
 440         struct iattr *                  iap;
 441         const struct nfs_server *       server; /* Needed for name mapping */
 442         const u32 *                     bitmask;
 443         struct nfs4_sequence_args       seq_args;
 444 };
 445
 446 struct nfs_setaclargs {
 447         struct nfs_fh *                 fh;
 448         size_t                          acl_len;
 449         unsigned int                    acl_pgbase;
 450         struct page **                  acl_pages;
 451         struct nfs4_sequence_args       seq_args;
 452 };
 453
 454 struct nfs_setaclres {
 455         struct nfs4_sequence_res        seq_res;
 456 };
 457
 458 struct nfs_getaclargs {
 459         struct nfs_fh *                 fh;
 460         size_t                          acl_len;
 461         unsigned int                    acl_pgbase;
 462         struct page **                  acl_pages;
 463         struct nfs4_sequence_args       seq_args;
 464 };
 465
 466 struct nfs_getaclres {
 467         size_t                          acl_len;
 468         struct nfs4_sequence_res        seq_res;
 469 };
 470
 471 struct nfs_setattrres {
 472         struct nfs_fattr *              fattr;
 473         const struct nfs_server *       server;
 474         struct nfs4_sequence_res        seq_res;
 475 };
 476
 477 struct nfs_linkargs {
 478         struct nfs_fh *         fromfh;
 479         struct nfs_fh *         tofh;
 480         const char *            toname;
 481         unsigned int            tolen;
 482 };
 483
 484 struct nfs_symlinkargs {
 485         struct nfs_fh *         fromfh;
 486         const char *            fromname;
 487         unsigned int            fromlen;
 488         struct page **          pages;
 489         unsigned int            pathlen;
 490         struct iattr *          sattr;
 491 };
 492
 493 struct nfs_readdirargs {
 494         struct nfs_fh *         fh;
 495         __u32                   cookie;
 496         unsigned int            count;
 497         struct page **          pages;
 498 };
 499
 500 struct nfs3_getaclargs {
 501         struct nfs_fh *         fh;
 502         int                     mask;
 503         struct page **          pages;
 504 };
 505
 506 struct nfs3_setaclargs {
 507         struct inode *          inode;
 508         int                     mask;
 509         struct posix_acl *      acl_access;
 510         struct posix_acl *      acl_default;
 511         size_t                  len;
 512         unsigned int            npages;
 513         struct page **          pages;
 514 };
 515
 516 struct nfs_diropok {
 517         struct nfs_fh *         fh;
 518         struct nfs_fattr *      fattr;
 519 };
 520
 521 struct nfs_readlinkargs {
 522         struct nfs_fh *         fh;
 523         unsigned int            pgbase;
 524         unsigned int            pglen;
 525         struct page **          pages;
 526 };
 527
 528 struct nfs3_sattrargs {
 529         struct nfs_fh *         fh;
 530         struct iattr *          sattr;
 531         unsigned int            guard;
 532         struct timespec         guardtime;
 533 };
 534
 535 struct nfs3_diropargs {
 536         struct nfs_fh *         fh;
 537         const char *            name;
 538         unsigned int            len;
 539 };
 540
 541 struct nfs3_accessargs {
 542         struct nfs_fh *         fh;
 543         __u32                   access;
 544 };
 545
 546 struct nfs3_createargs {
 547         struct nfs_fh *         fh;
 548         const char *            name;
 549         unsigned int            len;
 550         struct iattr *          sattr;
 551         enum nfs3_createmode    createmode;
 552         __be32                  verifier[2];
 553 };
 554
 555 struct nfs3_mkdirargs {
 556         struct nfs_fh *         fh;
 557         const char *            name;
 558         unsigned int            len;
 559         struct iattr *          sattr;
 560 };
 561
 562 struct nfs3_symlinkargs {
 563         struct nfs_fh *         fromfh;
 564         const char *            fromname;
 565         unsigned int            fromlen;
 566         struct page **          pages;
 567         unsigned int            pathlen;
 568         struct iattr *          sattr;
 569 };
 570
 571 struct nfs3_mknodargs {
 572         struct nfs_fh *         fh;
 573         const char *            name;
 574         unsigned int            len;
 575         enum nfs3_ftype         type;
 576         struct iattr *          sattr;
 577         dev_t                   rdev;
 578 };
 579
 580 struct nfs3_renameargs {
 581         struct nfs_fh *         fromfh;
 582         const char *            fromname;
 583         unsigned int            fromlen;
 584         struct nfs_fh *         tofh;
 585         const char *            toname;
 586         unsigned int            tolen;
 587 };
 588
 589 struct nfs3_linkargs {
 590         struct nfs_fh *         fromfh;
 591         struct nfs_fh *         tofh;
 592         const char *            toname;
 593         unsigned int            tolen;
 594 };
 595
 596 struct nfs3_readdirargs {
 597         struct nfs_fh *         fh;
 598         __u64                   cookie;
 599         __be32                  verf[2];
 600         int                     plus;
 601         unsigned int            count;
 602         struct page **          pages;
 603 };
 604
 605 struct nfs3_diropres {
 606         struct nfs_fattr *      dir_attr;
 607         struct nfs_fh *         fh;
 608         struct nfs_fattr *      fattr;
 609 };
 610
 611 struct nfs3_accessres {
 612         struct nfs_fattr *      fattr;
 613         __u32                   access;
 614 };
 615
 616 struct nfs3_readlinkargs {
 617         struct nfs_fh *         fh;
 618         unsigned int            pgbase;
 619         unsigned int            pglen;
 620         struct page **          pages;
 621 };
 622
 623 struct nfs3_renameres {
 624         struct nfs_fattr *      fromattr;
 625         struct nfs_fattr *      toattr;
 626 };
 627
 628 struct nfs3_linkres {
 629         struct nfs_fattr *      dir_attr;
 630         struct nfs_fattr *      fattr;
 631 };
 632
 633 struct nfs3_readdirres {
 634         struct nfs_fattr *      dir_attr;
 635         __be32 *                verf;
 636         int                     plus;
 637 };
 638
 639 struct nfs3_getaclres {
 640         struct nfs_fattr *      fattr;
 641         int                     mask;
 642         unsigned int            acl_access_count;
 643         unsigned int            acl_default_count;
 644         struct posix_acl *      acl_access;
 645         struct posix_acl *      acl_default;
 646 };
 647
 648 #ifdef CONFIG_NFS_V4
 649
 650 typedef u64 clientid4;
 651
 652 struct nfs4_accessargs {
 653         const struct nfs_fh *           fh;
 654         const u32 *                     bitmask;
 655         u32                             access;
 656         struct nfs4_sequence_args       seq_args;
 657 };
 658
 659 struct nfs4_accessres {
 660         const struct nfs_server *       server;
 661         struct nfs_fattr *              fattr;
 662         u32                             supported;
 663         u32                             access;
 664         struct nfs4_sequence_res        seq_res;
 665 };
 666
 667 struct nfs4_create_arg {
 668         u32                             ftype;
 669         union {
 670                 struct {
 671                         struct page **  pages;
 672                         unsigned int    len;
 673                 } symlink;   /* NF4LNK */
 674                 struct {
 675                         u32             specdata1;
 676                         u32             specdata2;
 677                 } device;    /* NF4BLK, NF4CHR */
 678         } u;
 679         const struct qstr *             name;
 680         const struct nfs_server *       server;
 681         const struct iattr *            attrs;
 682         const struct nfs_fh *           dir_fh;
 683         const u32 *                     bitmask;
 684         struct nfs4_sequence_args       seq_args;
 685 };
 686
 687 struct nfs4_create_res {
 688         const struct nfs_server *       server;
 689         struct nfs_fh *                 fh;
 690         struct nfs_fattr *              fattr;
 691         struct nfs4_change_info         dir_cinfo;
 692         struct nfs_fattr *              dir_fattr;
 693         struct nfs4_sequence_res        seq_res;
 694 };
 695
 696 struct nfs4_fsinfo_arg {
 697         const struct nfs_fh *           fh;
 698         const u32 *                     bitmask;
 699         struct nfs4_sequence_args       seq_args;
 700 };
 701
 702 struct nfs4_fsinfo_res {
 703         struct nfs_fsinfo              *fsinfo;
 704         struct nfs4_sequence_res        seq_res;
 705 };
 706
 707 struct nfs4_getattr_arg {
 708         const struct nfs_fh *           fh;
 709         const u32 *                     bitmask;
 710         struct nfs4_sequence_args       seq_args;
 711 };
 712
 713 struct nfs4_getattr_res {
 714         const struct nfs_server *       server;
 715         struct nfs_fattr *              fattr;
 716         struct nfs4_sequence_res        seq_res;
 717 };
 718
 719 struct nfs4_link_arg {
 720         const struct nfs_fh *           fh;
 721         const struct nfs_fh *           dir_fh;
 722         const struct qstr *             name;
 723         const u32 *                     bitmask;
 724         struct nfs4_sequence_args       seq_args;
 725 };
 726
 727 struct nfs4_link_res {
 728         const struct nfs_server *       server;
 729         struct nfs_fattr *              fattr;
 730         struct nfs4_change_info         cinfo;
 731         struct nfs_fattr *              dir_attr;
 732         struct nfs4_sequence_res        seq_res;
 733 };
 734
 735
 736 struct nfs4_lookup_arg {
 737         const struct nfs_fh *           dir_fh;
 738         const struct qstr *             name;
 739         const u32 *                     bitmask;
 740         struct nfs4_sequence_args       seq_args;
 741 };
 742
 743 struct nfs4_lookup_res {
 744         const struct nfs_server *       server;
 745         struct nfs_fattr *              fattr;
 746         struct nfs_fh *                 fh;
 747         struct nfs4_sequence_res        seq_res;
 748 };
 749
 750 struct nfs4_lookup_root_arg {
 751         const u32 *                     bitmask;
 752         struct nfs4_sequence_args       seq_args;
 753 };
 754
 755 struct nfs4_pathconf_arg {
 756         const struct nfs_fh *           fh;
 757         const u32 *                     bitmask;
 758         struct nfs4_sequence_args       seq_args;
 759 };
 760
 761 struct nfs4_pathconf_res {
 762         struct nfs_pathconf            *pathconf;
 763         struct nfs4_sequence_res        seq_res;
 764 };
 765
 766 struct nfs4_readdir_arg {
 767         const struct nfs_fh *           fh;
 768         u64                             cookie;
 769         nfs4_verifier                   verifier;
 770         u32                             count;
 771         struct page **                  pages;  /* zero-copy data */
 772         unsigned int                    pgbase; /* zero-copy data */
 773         const u32 *                     bitmask;
 774         struct nfs4_sequence_args       seq_args;
 775 };
 776
 777 struct nfs4_readdir_res {
 778         nfs4_verifier                   verifier;
 779         unsigned int                    pgbase;
 780         struct nfs4_sequence_res        seq_res;
 781 };
 782
 783 struct nfs4_readlink {
 784         const struct nfs_fh *           fh;
 785         unsigned int                    pgbase;
 786         unsigned int                    pglen;   /* zero-copy data */
 787         struct page **                  pages;   /* zero-copy data */
 788         struct nfs4_sequence_args       seq_args;
 789 };
 790
 791 struct nfs4_readlink_res {
 792         struct nfs4_sequence_res        seq_res;
 793 };
 794
 795 struct nfs4_rename_arg {
 796         const struct nfs_fh *           old_dir;
 797         const struct nfs_fh *           new_dir;
 798         const struct qstr *             old_name;
 799         const struct qstr *             new_name;
 800         const u32 *                     bitmask;
 801         struct nfs4_sequence_args       seq_args;
 802 };
 803
 804 struct nfs4_rename_res {
 805         const struct nfs_server *       server;
 806         struct nfs4_change_info         old_cinfo;
 807         struct nfs_fattr *              old_fattr;
 808         struct nfs4_change_info         new_cinfo;
 809         struct nfs_fattr *              new_fattr;
 810         struct nfs4_sequence_res        seq_res;
 811 };
 812
 813 #define NFS4_SETCLIENTID_NAMELEN        (127)
 814 struct nfs4_setclientid {
 815         const nfs4_verifier *           sc_verifier;
 816         unsigned int                    sc_name_len;
 817         char                            sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
 818         u32                             sc_prog;
 819         unsigned int                    sc_netid_len;
 820         char                            sc_netid[RPCBIND_MAXNETIDLEN + 1];
 821         unsigned int                    sc_uaddr_len;
 822         char                            sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
 823         u32                             sc_cb_ident;
 824 };
 825
 826 struct nfs4_statfs_arg {
 827         const struct nfs_fh *           fh;
 828         const u32 *                     bitmask;
 829         struct nfs4_sequence_args       seq_args;
 830 };
 831
 832 struct nfs4_statfs_res {
 833         struct nfs_fsstat              *fsstat;
 834         struct nfs4_sequence_res        seq_res;
 835 };
 836
 837 struct nfs4_server_caps_arg {
 838         struct nfs_fh                  *fhandle;
 839         struct nfs4_sequence_args       seq_args;
 840 };
 841
 842 struct nfs4_server_caps_res {
 843         u32                             attr_bitmask[2];
 844         u32                             acl_bitmask;
 845         u32                             has_links;
 846         u32                             has_symlinks;
 847         struct nfs4_sequence_res        seq_res;
 848 };
 849
 850 struct nfs4_string {
 851         unsigned int len;
 852         char *data;
 853 };
 854
 855 #define NFS4_PATHNAME_MAXCOMPONENTS 512
 856 struct nfs4_pathname {
 857         unsigned int ncomponents;
 858         struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
 859 };
 860
 861 #define NFS4_FS_LOCATION_MAXSERVERS 10
 862 struct nfs4_fs_location {
 863         unsigned int nservers;
 864         struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
 865         struct nfs4_pathname rootpath;
 866 };
 867
 868 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
 869 struct nfs4_fs_locations {
 870         struct nfs_fattr fattr;
 871         const struct nfs_server *server;
 872         struct nfs4_pathname fs_path;
 873         int nlocations;
 874         struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
 875 };
 876
 877 struct nfs4_fs_locations_arg {
 878         const struct nfs_fh *dir_fh;
 879         const struct qstr *name;
 880         struct page *page;
 881         const u32 *bitmask;
 882         struct nfs4_sequence_args       seq_args;
 883 };
 884
 885 struct nfs4_fs_locations_res {
 886         struct nfs4_fs_locations       *fs_locations;
 887         struct nfs4_sequence_res        seq_res;
 888 };
 889
 890 #endif /* CONFIG_NFS_V4 */
 891
 892 struct nfstime4 {
 893         u64     seconds;
 894         u32     nseconds;
 895 };
 896
 897 #ifdef CONFIG_NFS_V4_1
 898 struct nfs_impl_id4 {
 899         u32             domain_len;
 900         char            *domain;
 901         u32             name_len;
 902         char            *name;
 903         struct nfstime4 date;
 904 };
 905
 906 #define NFS4_EXCHANGE_ID_LEN    (48)
 907 struct nfs41_exchange_id_args {
 908         struct nfs_client               *client;
 909         nfs4_verifier                   *verifier;
 910         unsigned int                    id_len;
 911         char                            id[NFS4_EXCHANGE_ID_LEN];
 912         u32                             flags;
 913 };
 914
 915 struct server_owner {
 916         uint64_t                        minor_id;
 917         uint32_t                        major_id_sz;
 918         char                            major_id[NFS4_OPAQUE_LIMIT];
 919 };
 920
 921 struct server_scope {
 922         uint32_t                        server_scope_sz;
 923         char                            server_scope[NFS4_OPAQUE_LIMIT];
 924 };
 925
 926 struct nfs41_exchange_id_res {
 927         struct nfs_client               *client;
 928         u32                             flags;
 929 };
 930
 931 struct nfs41_create_session_args {
 932         struct nfs_client              *client;
 933         uint32_t                        flags;
 934         uint32_t                        cb_program;
 935         struct nfs4_channel_attrs       fc_attrs;       /* Fore Channel */
 936         struct nfs4_channel_attrs       bc_attrs;       /* Back Channel */
 937 };
 938
 939 struct nfs41_create_session_res {
 940         struct nfs_client              *client;
 941 };
 942
 943 struct nfs41_reclaim_complete_args {
 944         /* In the future extend to include curr_fh for use with migration */
 945         unsigned char                   one_fs:1;
 946         struct nfs4_sequence_args       seq_args;
 947 };
 948
 949 struct nfs41_reclaim_complete_res {
 950         struct nfs4_sequence_res        seq_res;
 951 };
 952 #endif /* CONFIG_NFS_V4_1 */
 953
 954 struct nfs_page;
 955
 956 #define NFS_PAGEVEC_SIZE        (8U)
 957
 958 struct nfs_read_data {
 959         int                     flags;
 960         struct rpc_task         task;
 961         struct inode            *inode;
 962         struct rpc_cred         *cred;
 963         struct nfs_fattr        fattr;  /* fattr storage */
 964         struct list_head        pages;  /* Coalesced read requests */
 965         struct nfs_page         *req;   /* multi ops per nfs_page */
 966         struct page             **pagevec;
 967         unsigned int            npages; /* Max length of pagevec */
 968         struct nfs_readargs args;
 969         struct nfs_readres  res;
 970 #ifdef CONFIG_NFS_V4
 971         unsigned long           timestamp;      /* For lease renewal */
 972 #endif
 973         struct page             *page_array[NFS_PAGEVEC_SIZE];
 974 };
 975
 976 struct nfs_write_data {
 977         int                     flags;
 978         struct rpc_task         task;
 979         struct inode            *inode;
 980         struct rpc_cred         *cred;
 981         struct nfs_fattr        fattr;
 982         struct nfs_writeverf    verf;
 983         struct list_head        pages;          /* Coalesced requests we wish to flush */
 984         struct nfs_page         *req;           /* multi ops per nfs_page */
 985         struct page             **pagevec;
 986         unsigned int            npages;         /* Max length of pagevec */
 987         struct nfs_writeargs    args;           /* argument struct */
 988         struct nfs_writeres     res;            /* result struct */
 989 #ifdef CONFIG_NFS_V4
 990         unsigned long           timestamp;      /* For lease renewal */
 991 #endif
 992         struct page             *page_array[NFS_PAGEVEC_SIZE];
 993 };
 994
 995 struct nfs_access_entry;
 996
 997 /*
 998  * RPC procedure vector for NFSv2/NFSv3 demuxing
 999  */
1000 struct nfs_rpc_ops {
1001         u32     version;                /* Protocol version */
1002         const struct dentry_operations *dentry_ops;
1003         const struct inode_operations *dir_inode_ops;
1004         const struct inode_operations *file_inode_ops;
1005
1006         int     (*getroot) (struct nfs_server *, struct nfs_fh *,
1007                             struct nfs_fsinfo *);
1008         int     (*lookupfh)(struct nfs_server *, struct nfs_fh *,
1009                             struct qstr *, struct nfs_fh *,
1010                             struct nfs_fattr *);
1011         int     (*getattr) (struct nfs_server *, struct nfs_fh *,
1012                             struct nfs_fattr *);
1013         int     (*setattr) (struct dentry *, struct nfs_fattr *,
1014                             struct iattr *);
1015         int     (*lookup)  (struct inode *, struct qstr *,
1016                             struct nfs_fh *, struct nfs_fattr *);
1017         int     (*access)  (struct inode *, struct nfs_access_entry *);
1018         int     (*readlink)(struct inode *, struct page *, unsigned int,
1019                             unsigned int);
1020         int     (*create)  (struct inode *, struct dentry *,
1021                             struct iattr *, int, struct nameidata *);
1022         int     (*remove)  (struct inode *, struct qstr *);
1023         void    (*unlink_setup)  (struct rpc_message *, struct inode *dir);
1024         int     (*unlink_done) (struct rpc_task *, struct inode *);
1025         int     (*rename)  (struct inode *, struct qstr *,
1026                             struct inode *, struct qstr *);
1027         int     (*link)    (struct inode *, struct inode *, struct qstr *);
1028         int     (*symlink) (struct inode *, struct dentry *, struct page *,
1029                             unsigned int, struct iattr *);
1030         int     (*mkdir)   (struct inode *, struct dentry *, struct iattr *);
1031         int     (*rmdir)   (struct inode *, struct qstr *);
1032         int     (*readdir) (struct dentry *, struct rpc_cred *,
1033                             u64, struct page *, unsigned int, int);
1034         int     (*mknod)   (struct inode *, struct dentry *, struct iattr *,
1035                             dev_t);
1036         int     (*statfs)  (struct nfs_server *, struct nfs_fh *,
1037                             struct nfs_fsstat *);
1038         int     (*fsinfo)  (struct nfs_server *, struct nfs_fh *,
1039                             struct nfs_fsinfo *);
1040         int     (*pathconf) (struct nfs_server *, struct nfs_fh *,
1041                              struct nfs_pathconf *);
1042         int     (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1043         __be32 *(*decode_dirent)(__be32 *, struct nfs_entry *, int plus);
1044         void    (*read_setup)   (struct nfs_read_data *, struct rpc_message *);
1045         int     (*read_done)  (struct rpc_task *, struct nfs_read_data *);
1046         void    (*write_setup)  (struct nfs_write_data *, struct rpc_message *);
1047         int     (*write_done)  (struct rpc_task *, struct nfs_write_data *);
1048         void    (*commit_setup) (struct nfs_write_data *, struct rpc_message *);
1049         int     (*commit_done) (struct rpc_task *, struct nfs_write_data *);
1050         int     (*lock)(struct file *, int, struct file_lock *);
1051         int     (*lock_check_bounds)(const struct file_lock *);
1052         void    (*clear_acl_cache)(struct inode *);
1053         void    (*close_context)(struct nfs_open_context *ctx, int);
1054 };
1055
1056 /*
1057  *      NFS_CALL(getattr, inode, (fattr));
1058  * into
1059  *      NFS_PROTO(inode)->getattr(fattr);
1060  */
1061 #define NFS_CALL(op, inode, args)       NFS_PROTO(inode)->op args
1062
1063 /*
1064  * Function vectors etc. for the NFS client
1065  */
1066 extern const struct nfs_rpc_ops nfs_v2_clientops;
1067 extern const struct nfs_rpc_ops nfs_v3_clientops;
1068 extern const struct nfs_rpc_ops nfs_v4_clientops;
1069 extern struct rpc_version       nfs_version2;
1070 extern struct rpc_version       nfs_version3;
1071 extern struct rpc_version       nfs_version4;
1072
1073 extern struct rpc_version       nfsacl_version3;
1074 extern struct rpc_program       nfsacl_program;
1075
1076 #endif