fs/nfsd/xdr4.h

   1 /*
   2  *  Server-side types for NFSv4.
   3  *
   4  *  Copyright (c) 2002 The Regents of the University of Michigan.
   5  *  All rights reserved.
   6  *
   7  *  Kendrick Smith <kmsmith@umich.edu>
   8  *  Andy Adamson   <andros@umich.edu>
   9  *
  10  *  Redistribution and use in source and binary forms, with or without
  11  *  modification, are permitted provided that the following conditions
  12  *  are met:
  13  *
  14  *  1. Redistributions of source code must retain the above copyright
  15  *     notice, this list of conditions and the following disclaimer.
  16  *  2. Redistributions in binary form must reproduce the above copyright
  17  *     notice, this list of conditions and the following disclaimer in the
  18  *     documentation and/or other materials provided with the distribution.
  19  *  3. Neither the name of the University nor the names of its
  20  *     contributors may be used to endorse or promote products derived
  21  *     from this software without specific prior written permission.
  22  *
  23  *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
  24  *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  25  *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  26  *  DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  *  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  28  *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  29  *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  30  *  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  31  *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  32  *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  33  *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34  *
  35  */
  36
  37 #ifndef _LINUX_NFSD_XDR4_H
  38 #define _LINUX_NFSD_XDR4_H
  39
  40 #include "state.h"
  41 #include "nfsd.h"
  42
  43 #define NFSD4_MAX_TAGLEN        128
  44 #define XDR_LEN(n)                     (((n) + 3) & ~3)
  45
  46 #define CURRENT_STATE_ID_FLAG (1<<0)
  47 #define SAVED_STATE_ID_FLAG (1<<1)
  48
  49 #define SET_STATE_ID(c, f) ((c)->sid_flags |= (f))
  50 #define HAS_STATE_ID(c, f) ((c)->sid_flags & (f))
  51 #define CLEAR_STATE_ID(c, f) ((c)->sid_flags &= ~(f))
  52
  53 struct nfsd4_compound_state {
  54         struct svc_fh           current_fh;
  55         struct svc_fh           save_fh;
  56         struct nfs4_stateowner  *replay_owner;
  57         struct nfs4_client      *clp;
  58         /* For sessions DRC */
  59         struct nfsd4_session    *session;
  60         struct nfsd4_slot       *slot;
  61         int                     data_offset;
  62         size_t                  iovlen;
  63         u32                     minorversion;
  64         __be32                  status;
  65         stateid_t       current_stateid;
  66         stateid_t       save_stateid;
  67         /* to indicate current and saved state id presents */
  68         u32             sid_flags;
  69 };
  70
  71 static inline bool nfsd4_has_session(struct nfsd4_compound_state *cs)
  72 {
  73         return cs->slot != NULL;
  74 }
  75
  76 struct nfsd4_change_info {
  77         u32             atomic;
  78         bool            change_supported;
  79         u32             before_ctime_sec;
  80         u32             before_ctime_nsec;
  81         u64             before_change;
  82         u32             after_ctime_sec;
  83         u32             after_ctime_nsec;
  84         u64             after_change;
  85 };
  86
  87 struct nfsd4_access {
  88         u32             ac_req_access;      /* request */
  89         u32             ac_supported;       /* response */
  90         u32             ac_resp_access;     /* response */
  91 };
  92
  93 struct nfsd4_close {
  94         u32             cl_seqid;           /* request */
  95         stateid_t       cl_stateid;         /* request+response */
  96 };
  97
  98 struct nfsd4_commit {
  99         u64             co_offset;          /* request */
 100         u32             co_count;           /* request */
 101         nfs4_verifier   co_verf;            /* response */
 102 };
 103
 104 struct nfsd4_create {
 105         u32             cr_namelen;         /* request */
 106         char *          cr_name;            /* request */
 107         u32             cr_type;            /* request */
 108         union {                             /* request */
 109                 struct {
 110                         u32 datalen;
 111                         char *data;
 112                 } link;   /* NF4LNK */
 113                 struct {
 114                         u32 specdata1;
 115                         u32 specdata2;
 116                 } dev;    /* NF4BLK, NF4CHR */
 117         } u;
 118         u32             cr_bmval[3];        /* request */
 119         struct iattr    cr_iattr;           /* request */
 120         struct nfsd4_change_info  cr_cinfo; /* response */
 121         struct nfs4_acl *cr_acl;
 122         struct xdr_netobj cr_label;
 123 };
 124 #define cr_datalen      u.link.datalen
 125 #define cr_data         u.link.data
 126 #define cr_specdata1    u.dev.specdata1
 127 #define cr_specdata2    u.dev.specdata2
 128
 129 struct nfsd4_delegreturn {
 130         stateid_t       dr_stateid;
 131 };
 132
 133 struct nfsd4_getattr {
 134         u32             ga_bmval[3];        /* request */
 135         struct svc_fh   *ga_fhp;            /* response */
 136 };
 137
 138 struct nfsd4_link {
 139         u32             li_namelen;         /* request */
 140         char *          li_name;            /* request */
 141         struct nfsd4_change_info  li_cinfo; /* response */
 142 };
 143
 144 struct nfsd4_lock_denied {
 145         clientid_t      ld_clientid;
 146         struct xdr_netobj       ld_owner;
 147         u64             ld_start;
 148         u64             ld_length;
 149         u32             ld_type;
 150 };
 151
 152 struct nfsd4_lock {
 153         /* request */
 154         u32             lk_type;
 155         u32             lk_reclaim;         /* boolean */
 156         u64             lk_offset;
 157         u64             lk_length;
 158         u32             lk_is_new;
 159         union {
 160                 struct {
 161                         u32             open_seqid;
 162                         stateid_t       open_stateid;
 163                         u32             lock_seqid;
 164                         clientid_t      clientid;
 165                         struct xdr_netobj owner;
 166                 } new;
 167                 struct {
 168                         stateid_t       lock_stateid;
 169                         u32             lock_seqid;
 170                 } old;
 171         } v;
 172
 173         /* response */
 174         union {
 175                 struct {
 176                         stateid_t               stateid;
 177                 } ok;
 178                 struct nfsd4_lock_denied        denied;
 179         } u;
 180 };
 181 #define lk_new_open_seqid       v.new.open_seqid
 182 #define lk_new_open_stateid     v.new.open_stateid
 183 #define lk_new_lock_seqid       v.new.lock_seqid
 184 #define lk_new_clientid         v.new.clientid
 185 #define lk_new_owner            v.new.owner
 186 #define lk_old_lock_stateid     v.old.lock_stateid
 187 #define lk_old_lock_seqid       v.old.lock_seqid
 188
 189 #define lk_resp_stateid u.ok.stateid
 190 #define lk_denied       u.denied
 191
 192
 193 struct nfsd4_lockt {
 194         u32                             lt_type;
 195         clientid_t                      lt_clientid;
 196         struct xdr_netobj               lt_owner;
 197         u64                             lt_offset;
 198         u64                             lt_length;
 199         struct nfsd4_lock_denied        lt_denied;
 200 };
 201
 202
 203 struct nfsd4_locku {
 204         u32             lu_type;
 205         u32             lu_seqid;
 206         stateid_t       lu_stateid;
 207         u64             lu_offset;
 208         u64             lu_length;
 209 };
 210
 211
 212 struct nfsd4_lookup {
 213         u32             lo_len;             /* request */
 214         char *          lo_name;            /* request */
 215 };
 216
 217 struct nfsd4_putfh {
 218         u32             pf_fhlen;           /* request */
 219         char            *pf_fhval;          /* request */
 220 };
 221
 222 struct nfsd4_open {
 223         u32             op_claim_type;      /* request */
 224         struct xdr_netobj op_fname;         /* request - everything but CLAIM_PREV */
 225         u32             op_delegate_type;   /* request - CLAIM_PREV only */
 226         stateid_t       op_delegate_stateid; /* request - response */
 227         u32             op_why_no_deleg;    /* response - DELEG_NONE_EXT only */
 228         u32             op_create;          /* request */
 229         u32             op_createmode;      /* request */
 230         u32             op_bmval[3];        /* request */
 231         struct iattr    op_iattr;           /* UNCHECKED4, GUARDED4, EXCLUSIVE4_1 */
 232         nfs4_verifier   op_verf __attribute__((aligned(32)));
 233                                             /* EXCLUSIVE4 */
 234         clientid_t      op_clientid;        /* request */
 235         struct xdr_netobj op_owner;           /* request */
 236         u32             op_seqid;           /* request */
 237         u32             op_share_access;    /* request */
 238         u32             op_share_deny;      /* request */
 239         u32             op_deleg_want;      /* request */
 240         stateid_t       op_stateid;         /* response */
 241         __be32          op_xdr_error;       /* see nfsd4_open_omfg() */
 242         u32             op_recall;          /* recall */
 243         struct nfsd4_change_info  op_cinfo; /* response */
 244         u32             op_rflags;          /* response */
 245         bool            op_truncate;        /* used during processing */
 246         bool            op_created;         /* used during processing */
 247         struct nfs4_openowner *op_openowner; /* used during processing */
 248         struct nfs4_file *op_file;          /* used during processing */
 249         struct nfs4_ol_stateid *op_stp;     /* used during processing */
 250         struct nfs4_acl *op_acl;
 251         struct xdr_netobj op_label;
 252 };
 253
 254 struct nfsd4_open_confirm {
 255         stateid_t       oc_req_stateid          /* request */;
 256         u32             oc_seqid                /* request */;
 257         stateid_t       oc_resp_stateid         /* response */;
 258 };
 259
 260 struct nfsd4_open_downgrade {
 261         stateid_t       od_stateid;
 262         u32             od_seqid;
 263         u32             od_share_access;        /* request */
 264         u32             od_deleg_want;          /* request */
 265         u32             od_share_deny;          /* request */
 266 };
 267
 268
 269 struct nfsd4_read {
 270         stateid_t       rd_stateid;         /* request */
 271         u64             rd_offset;          /* request */
 272         u32             rd_length;          /* request */
 273         int             rd_vlen;
 274         struct file     *rd_filp;
 275
 276         struct svc_rqst *rd_rqstp;          /* response */
 277         struct svc_fh * rd_fhp;             /* response */
 278 };
 279
 280 struct nfsd4_readdir {
 281         u64             rd_cookie;          /* request */
 282         nfs4_verifier   rd_verf;            /* request */
 283         u32             rd_dircount;        /* request */
 284         u32             rd_maxcount;        /* request */
 285         u32             rd_bmval[3];        /* request */
 286         struct svc_rqst *rd_rqstp;          /* response */
 287         struct svc_fh * rd_fhp;             /* response */
 288
 289         struct readdir_cd       common;
 290         struct xdr_stream       *xdr;
 291         int                     cookie_offset;
 292 };
 293
 294 struct nfsd4_release_lockowner {
 295         clientid_t        rl_clientid;
 296         struct xdr_netobj rl_owner;
 297 };
 298 struct nfsd4_readlink {
 299         struct svc_rqst *rl_rqstp;          /* request */
 300         struct svc_fh * rl_fhp;             /* request */
 301 };
 302
 303 struct nfsd4_remove {
 304         u32             rm_namelen;         /* request */
 305         char *          rm_name;            /* request */
 306         struct nfsd4_change_info  rm_cinfo; /* response */
 307 };
 308
 309 struct nfsd4_rename {
 310         u32             rn_snamelen;        /* request */
 311         char *          rn_sname;           /* request */
 312         u32             rn_tnamelen;        /* request */
 313         char *          rn_tname;           /* request */
 314         struct nfsd4_change_info  rn_sinfo; /* response */
 315         struct nfsd4_change_info  rn_tinfo; /* response */
 316 };
 317
 318 struct nfsd4_secinfo {
 319         u32 si_namelen;                                 /* request */
 320         char *si_name;                                  /* request */
 321         struct svc_export *si_exp;                      /* response */
 322 };
 323
 324 struct nfsd4_secinfo_no_name {
 325         u32 sin_style;                                  /* request */
 326         struct svc_export *sin_exp;                     /* response */
 327 };
 328
 329 struct nfsd4_setattr {
 330         stateid_t       sa_stateid;         /* request */
 331         u32             sa_bmval[3];        /* request */
 332         struct iattr    sa_iattr;           /* request */
 333         struct nfs4_acl *sa_acl;
 334         struct xdr_netobj sa_label;
 335 };
 336
 337 struct nfsd4_setclientid {
 338         nfs4_verifier   se_verf;            /* request */
 339         struct xdr_netobj se_name;
 340         u32             se_callback_prog;   /* request */
 341         u32             se_callback_netid_len;  /* request */
 342         char *          se_callback_netid_val;  /* request */
 343         u32             se_callback_addr_len;   /* request */
 344         char *          se_callback_addr_val;   /* request */
 345         u32             se_callback_ident;  /* request */
 346         clientid_t      se_clientid;        /* response */
 347         nfs4_verifier   se_confirm;         /* response */
 348 };
 349
 350 struct nfsd4_setclientid_confirm {
 351         clientid_t      sc_clientid;
 352         nfs4_verifier   sc_confirm;
 353 };
 354
 355 struct nfsd4_saved_compoundargs {
 356         __be32 *p;
 357         __be32 *end;
 358         int pagelen;
 359         struct page **pagelist;
 360 };
 361
 362 struct nfsd4_test_stateid_id {
 363         __be32                  ts_id_status;
 364         stateid_t               ts_id_stateid;
 365         struct list_head        ts_id_list;
 366 };
 367
 368 struct nfsd4_test_stateid {
 369         u32             ts_num_ids;
 370         struct list_head ts_stateid_list;
 371 };
 372
 373 struct nfsd4_free_stateid {
 374         stateid_t       fr_stateid;         /* request */
 375 };
 376
 377 /* also used for NVERIFY */
 378 struct nfsd4_verify {
 379         u32             ve_bmval[3];        /* request */
 380         u32             ve_attrlen;         /* request */
 381         char *          ve_attrval;         /* request */
 382 };
 383
 384 struct nfsd4_write {
 385         stateid_t       wr_stateid;         /* request */
 386         u64             wr_offset;          /* request */
 387         u32             wr_stable_how;      /* request */
 388         u32             wr_buflen;          /* request */
 389         struct kvec     wr_head;
 390         struct page **  wr_pagelist;        /* request */
 391
 392         u32             wr_bytes_written;   /* response */
 393         u32             wr_how_written;     /* response */
 394         nfs4_verifier   wr_verifier;        /* response */
 395 };
 396
 397 struct nfsd4_exchange_id {
 398         nfs4_verifier   verifier;
 399         struct xdr_netobj clname;
 400         u32             flags;
 401         clientid_t      clientid;
 402         u32             seqid;
 403         int             spa_how;
 404 };
 405
 406 struct nfsd4_sequence {
 407         struct nfs4_sessionid   sessionid;              /* request/response */
 408         u32                     seqid;                  /* request/response */
 409         u32                     slotid;                 /* request/response */
 410         u32                     maxslots;               /* request/response */
 411         u32                     cachethis;              /* request */
 412 #if 0
 413         u32                     target_maxslots;        /* response */
 414 #endif /* not yet */
 415         u32                     status_flags;           /* response */
 416 };
 417
 418 struct nfsd4_destroy_session {
 419         struct nfs4_sessionid   sessionid;
 420 };
 421
 422 struct nfsd4_destroy_clientid {
 423         clientid_t clientid;
 424 };
 425
 426 struct nfsd4_reclaim_complete {
 427         u32 rca_one_fs;
 428 };
 429
 430 struct nfsd4_deviceid {
 431         u64                     fsid_idx;
 432         u32                     generation;
 433         u32                     pad;
 434 };
 435
 436 struct nfsd4_layout_seg {
 437         u32                     iomode;
 438         u64                     offset;
 439         u64                     length;
 440 };
 441
 442 struct nfsd4_getdeviceinfo {
 443         struct nfsd4_deviceid   gd_devid;       /* request */
 444         u32                     gd_layout_type; /* request */
 445         u32                     gd_maxcount;    /* request */
 446         u32                     gd_notify_types;/* request - response */
 447         void                    *gd_device;     /* response */
 448 };
 449
 450 struct nfsd4_layoutget {
 451         u64                     lg_minlength;   /* request */
 452         u32                     lg_signal;      /* request */
 453         u32                     lg_layout_type; /* request */
 454         u32                     lg_maxcount;    /* request */
 455         stateid_t               lg_sid;         /* request/response */
 456         struct nfsd4_layout_seg lg_seg;         /* request/response */
 457         void                    *lg_content;    /* response */
 458 };
 459
 460 struct nfsd4_layoutcommit {
 461         stateid_t               lc_sid;         /* request */
 462         struct nfsd4_layout_seg lc_seg;         /* request */
 463         u32                     lc_reclaim;     /* request */
 464         u32                     lc_newoffset;   /* request */
 465         u64                     lc_last_wr;     /* request */
 466         struct timespec         lc_mtime;       /* request */
 467         u32                     lc_layout_type; /* request */
 468         u32                     lc_up_len;      /* layout length */
 469         void                    *lc_up_layout;  /* decoded by callback */
 470         u32                     lc_size_chg;    /* boolean for response */
 471         u64                     lc_newsize;     /* response */
 472 };
 473
 474 struct nfsd4_layoutreturn {
 475         u32                     lr_return_type; /* request */
 476         u32                     lr_layout_type; /* request */
 477         struct nfsd4_layout_seg lr_seg;         /* request */
 478         u32                     lr_reclaim;     /* request */
 479         u32                     lrf_body_len;   /* request */
 480         void                    *lrf_body;      /* request */
 481         stateid_t               lr_sid;         /* request/response */
 482         u32                     lrs_present;    /* response */
 483 };
 484
 485 struct nfsd4_fallocate {
 486         /* request */
 487         stateid_t       falloc_stateid;
 488         loff_t          falloc_offset;
 489         u64             falloc_length;
 490 };
 491
 492 struct nfsd4_seek {
 493         /* request */
 494         stateid_t       seek_stateid;
 495         loff_t          seek_offset;
 496         u32             seek_whence;
 497
 498         /* response */
 499         u32             seek_eof;
 500         loff_t          seek_pos;
 501 };
 502
 503 struct nfsd4_op {
 504         int                                     opnum;
 505         __be32                                  status;
 506         union {
 507                 struct nfsd4_access             access;
 508                 struct nfsd4_close              close;
 509                 struct nfsd4_commit             commit;
 510                 struct nfsd4_create             create;
 511                 struct nfsd4_delegreturn        delegreturn;
 512                 struct nfsd4_getattr            getattr;
 513                 struct svc_fh *                 getfh;
 514                 struct nfsd4_link               link;
 515                 struct nfsd4_lock               lock;
 516                 struct nfsd4_lockt              lockt;
 517                 struct nfsd4_locku              locku;
 518                 struct nfsd4_lookup             lookup;
 519                 struct nfsd4_verify             nverify;
 520                 struct nfsd4_open               open;
 521                 struct nfsd4_open_confirm       open_confirm;
 522                 struct nfsd4_open_downgrade     open_downgrade;
 523                 struct nfsd4_putfh              putfh;
 524                 struct nfsd4_read               read;
 525                 struct nfsd4_readdir            readdir;
 526                 struct nfsd4_readlink           readlink;
 527                 struct nfsd4_remove             remove;
 528                 struct nfsd4_rename             rename;
 529                 clientid_t                      renew;
 530                 struct nfsd4_secinfo            secinfo;
 531                 struct nfsd4_setattr            setattr;
 532                 struct nfsd4_setclientid        setclientid;
 533                 struct nfsd4_setclientid_confirm setclientid_confirm;
 534                 struct nfsd4_verify             verify;
 535                 struct nfsd4_write              write;
 536                 struct nfsd4_release_lockowner  release_lockowner;
 537
 538                 /* NFSv4.1 */
 539                 struct nfsd4_exchange_id        exchange_id;
 540                 struct nfsd4_backchannel_ctl    backchannel_ctl;
 541                 struct nfsd4_bind_conn_to_session bind_conn_to_session;
 542                 struct nfsd4_create_session     create_session;
 543                 struct nfsd4_destroy_session    destroy_session;
 544                 struct nfsd4_sequence           sequence;
 545                 struct nfsd4_reclaim_complete   reclaim_complete;
 546                 struct nfsd4_test_stateid       test_stateid;
 547                 struct nfsd4_free_stateid       free_stateid;
 548                 struct nfsd4_getdeviceinfo      getdeviceinfo;
 549                 struct nfsd4_layoutget          layoutget;
 550                 struct nfsd4_layoutcommit       layoutcommit;
 551                 struct nfsd4_layoutreturn       layoutreturn;
 552
 553                 /* NFSv4.2 */
 554                 struct nfsd4_fallocate          allocate;
 555                 struct nfsd4_fallocate          deallocate;
 556                 struct nfsd4_seek               seek;
 557         } u;
 558         struct nfs4_replay *                    replay;
 559 };
 560
 561 bool nfsd4_cache_this_op(struct nfsd4_op *);
 562
 563 /*
 564  * Memory needed just for the duration of processing one compound:
 565  */
 566 struct svcxdr_tmpbuf {
 567         struct svcxdr_tmpbuf *next;
 568         char buf[];
 569 };
 570
 571 struct nfsd4_compoundargs {
 572         /* scratch variables for XDR decode */
 573         __be32 *                        p;
 574         __be32 *                        end;
 575         struct page **                  pagelist;
 576         int                             pagelen;
 577         __be32                          tmp[8];
 578         __be32 *                        tmpp;
 579         struct svcxdr_tmpbuf            *to_free;
 580
 581         struct svc_rqst                 *rqstp;
 582
 583         u32                             taglen;
 584         char *                          tag;
 585         u32                             minorversion;
 586         u32                             opcnt;
 587         struct nfsd4_op                 *ops;
 588         struct nfsd4_op                 iops[8];
 589         int                             cachetype;
 590 };
 591
 592 struct nfsd4_compoundres {
 593         /* scratch variables for XDR encode */
 594         struct xdr_stream               xdr;
 595         struct svc_rqst *               rqstp;
 596
 597         u32                             taglen;
 598         char *                          tag;
 599         u32                             opcnt;
 600         __be32 *                        tagp; /* tag, opcount encode location */
 601         struct nfsd4_compound_state     cstate;
 602 };
 603
 604 static inline bool nfsd4_is_solo_sequence(struct nfsd4_compoundres *resp)
 605 {
 606         struct nfsd4_compoundargs *args = resp->rqstp->rq_argp;
 607         return resp->opcnt == 1 && args->ops[0].opnum == OP_SEQUENCE;
 608 }
 609
 610 static inline bool nfsd4_not_cached(struct nfsd4_compoundres *resp)
 611 {
 612         return !(resp->cstate.slot->sl_flags & NFSD4_SLOT_CACHETHIS)
 613                 || nfsd4_is_solo_sequence(resp);
 614 }
 615
 616 static inline bool nfsd4_last_compound_op(struct svc_rqst *rqstp)
 617 {
 618         struct nfsd4_compoundres *resp = rqstp->rq_resp;
 619         struct nfsd4_compoundargs *argp = rqstp->rq_argp;
 620
 621         return argp->opcnt == resp->opcnt;
 622 }
 623
 624 int nfsd4_max_reply(struct svc_rqst *rqstp, struct nfsd4_op *op);
 625 void warn_on_nonidempotent_op(struct nfsd4_op *op);
 626
 627 #define NFS4_SVC_XDRSIZE                sizeof(struct nfsd4_compoundargs)
 628
 629 static inline void
 630 set_change_info(struct nfsd4_change_info *cinfo, struct svc_fh *fhp)
 631 {
 632         BUG_ON(!fhp->fh_pre_saved);
 633         cinfo->atomic = fhp->fh_post_saved;
 634         cinfo->change_supported = IS_I_VERSION(d_inode(fhp->fh_dentry));
 635
 636         cinfo->before_change = fhp->fh_pre_change;
 637         cinfo->after_change = fhp->fh_post_change;
 638         cinfo->before_ctime_sec = fhp->fh_pre_ctime.tv_sec;
 639         cinfo->before_ctime_nsec = fhp->fh_pre_ctime.tv_nsec;
 640         cinfo->after_ctime_sec = fhp->fh_post_attr.ctime.tv_sec;
 641         cinfo->after_ctime_nsec = fhp->fh_post_attr.ctime.tv_nsec;
 642
 643 }
 644
 645 int nfs4svc_encode_voidres(struct svc_rqst *, __be32 *, void *);
 646 int nfs4svc_decode_compoundargs(struct svc_rqst *, __be32 *,
 647                 struct nfsd4_compoundargs *);
 648 int nfs4svc_encode_compoundres(struct svc_rqst *, __be32 *,
 649                 struct nfsd4_compoundres *);
 650 __be32 nfsd4_check_resp_size(struct nfsd4_compoundres *, u32);
 651 void nfsd4_encode_operation(struct nfsd4_compoundres *, struct nfsd4_op *);
 652 void nfsd4_encode_replay(struct xdr_stream *xdr, struct nfsd4_op *op);
 653 __be32 nfsd4_encode_fattr_to_buf(__be32 **p, int words,
 654                 struct svc_fh *fhp, struct svc_export *exp,
 655                 struct dentry *dentry,
 656                 u32 *bmval, struct svc_rqst *, int ignore_crossmnt);
 657 extern __be32 nfsd4_setclientid(struct svc_rqst *rqstp,
 658                 struct nfsd4_compound_state *,
 659                 struct nfsd4_setclientid *setclid);
 660 extern __be32 nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
 661                 struct nfsd4_compound_state *,
 662                 struct nfsd4_setclientid_confirm *setclientid_confirm);
 663 extern __be32 nfsd4_exchange_id(struct svc_rqst *rqstp,
 664                 struct nfsd4_compound_state *, struct nfsd4_exchange_id *);
 665 extern __be32 nfsd4_backchannel_ctl(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_backchannel_ctl *);
 666 extern __be32 nfsd4_bind_conn_to_session(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_bind_conn_to_session *);
 667 extern __be32 nfsd4_create_session(struct svc_rqst *,
 668                 struct nfsd4_compound_state *,
 669                 struct nfsd4_create_session *);
 670 extern __be32 nfsd4_sequence(struct svc_rqst *,
 671                 struct nfsd4_compound_state *,
 672                 struct nfsd4_sequence *);
 673 extern void nfsd4_sequence_done(struct nfsd4_compoundres *resp);
 674 extern __be32 nfsd4_destroy_session(struct svc_rqst *,
 675                 struct nfsd4_compound_state *,
 676                 struct nfsd4_destroy_session *);
 677 extern __be32 nfsd4_destroy_clientid(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_destroy_clientid *);
 678 __be32 nfsd4_reclaim_complete(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_reclaim_complete *);
 679 extern __be32 nfsd4_process_open1(struct nfsd4_compound_state *,
 680                 struct nfsd4_open *open, struct nfsd_net *nn);
 681 extern __be32 nfsd4_process_open2(struct svc_rqst *rqstp,
 682                 struct svc_fh *current_fh, struct nfsd4_open *open);
 683 extern void nfsd4_cstate_clear_replay(struct nfsd4_compound_state *cstate);
 684 extern void nfsd4_cleanup_open_state(struct nfsd4_compound_state *cstate,
 685                 struct nfsd4_open *open);
 686 extern __be32 nfsd4_open_confirm(struct svc_rqst *rqstp,
 687                 struct nfsd4_compound_state *, struct nfsd4_open_confirm *oc);
 688 extern __be32 nfsd4_close(struct svc_rqst *rqstp,
 689                 struct nfsd4_compound_state *,
 690                 struct nfsd4_close *close);
 691 extern __be32 nfsd4_open_downgrade(struct svc_rqst *rqstp,
 692                 struct nfsd4_compound_state *,
 693                 struct nfsd4_open_downgrade *od);
 694 extern __be32 nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
 695                 struct nfsd4_lock *lock);
 696 extern __be32 nfsd4_lockt(struct svc_rqst *rqstp,
 697                 struct nfsd4_compound_state *,
 698                 struct nfsd4_lockt *lockt);
 699 extern __be32 nfsd4_locku(struct svc_rqst *rqstp,
 700                 struct nfsd4_compound_state *,
 701                 struct nfsd4_locku *locku);
 702 extern __be32
 703 nfsd4_release_lockowner(struct svc_rqst *rqstp,
 704                 struct nfsd4_compound_state *,
 705                 struct nfsd4_release_lockowner *rlockowner);
 706 extern int nfsd4_release_compoundargs(void *rq, __be32 *p, void *resp);
 707 extern __be32 nfsd4_delegreturn(struct svc_rqst *rqstp,
 708                 struct nfsd4_compound_state *, struct nfsd4_delegreturn *dr);
 709 extern __be32 nfsd4_renew(struct svc_rqst *rqstp,
 710                           struct nfsd4_compound_state *, clientid_t *clid);
 711 extern __be32 nfsd4_test_stateid(struct svc_rqst *rqstp,
 712                 struct nfsd4_compound_state *, struct nfsd4_test_stateid *test_stateid);
 713 extern __be32 nfsd4_free_stateid(struct svc_rqst *rqstp,
 714                 struct nfsd4_compound_state *, struct nfsd4_free_stateid *free_stateid);
 715 extern void nfsd4_bump_seqid(struct nfsd4_compound_state *, __be32 nfserr);
 716
 717 #endif
 718
 719 /*
 720  * Local variables:
 721  *  c-basic-offset: 8
 722  * End:
 723  */