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