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_clnt_odstate *op_odstate; /* used during processing */
 251         struct nfs4_acl *op_acl;
 252         struct xdr_netobj op_label;
 253 };
 254
 255 struct nfsd4_open_confirm {
 256         stateid_t       oc_req_stateid          /* request */;
 257         u32             oc_seqid                /* request */;
 258         stateid_t       oc_resp_stateid         /* response */;
 259 };
 260
 261 struct nfsd4_open_downgrade {
 262         stateid_t       od_stateid;
 263         u32             od_seqid;
 264         u32             od_share_access;        /* request */
 265         u32             od_deleg_want;          /* request */
 266         u32             od_share_deny;          /* request */
 267 };
 268
 269
 270 struct nfsd4_read {
 271         stateid_t       rd_stateid;         /* request */
 272         u64             rd_offset;          /* request */
 273         u32             rd_length;          /* request */
 274         int             rd_vlen;
 275         struct file     *rd_filp;
 276
 277         struct svc_rqst *rd_rqstp;          /* response */
 278         struct svc_fh * rd_fhp;             /* response */
 279 };
 280
 281 struct nfsd4_readdir {
 282         u64             rd_cookie;          /* request */
 283         nfs4_verifier   rd_verf;            /* request */
 284         u32             rd_dircount;        /* request */
 285         u32             rd_maxcount;        /* request */
 286         u32             rd_bmval[3];        /* request */
 287         struct svc_rqst *rd_rqstp;          /* response */
 288         struct svc_fh * rd_fhp;             /* response */
 289
 290         struct readdir_cd       common;
 291         struct xdr_stream       *xdr;
 292         int                     cookie_offset;
 293 };
 294
 295 struct nfsd4_release_lockowner {
 296         clientid_t        rl_clientid;
 297         struct xdr_netobj rl_owner;
 298 };
 299 struct nfsd4_readlink {
 300         struct svc_rqst *rl_rqstp;          /* request */
 301         struct svc_fh * rl_fhp;             /* request */
 302 };
 303
 304 struct nfsd4_remove {
 305         u32             rm_namelen;         /* request */
 306         char *          rm_name;            /* request */
 307         struct nfsd4_change_info  rm_cinfo; /* response */
 308 };
 309
 310 struct nfsd4_rename {
 311         u32             rn_snamelen;        /* request */
 312         char *          rn_sname;           /* request */
 313         u32             rn_tnamelen;        /* request */
 314         char *          rn_tname;           /* request */
 315         struct nfsd4_change_info  rn_sinfo; /* response */
 316         struct nfsd4_change_info  rn_tinfo; /* response */
 317 };
 318
 319 struct nfsd4_secinfo {
 320         u32 si_namelen;                                 /* request */
 321         char *si_name;                                  /* request */
 322         struct svc_export *si_exp;                      /* response */
 323 };
 324
 325 struct nfsd4_secinfo_no_name {
 326         u32 sin_style;                                  /* request */
 327         struct svc_export *sin_exp;                     /* response */
 328 };
 329
 330 struct nfsd4_setattr {
 331         stateid_t       sa_stateid;         /* request */
 332         u32             sa_bmval[3];        /* request */
 333         struct iattr    sa_iattr;           /* request */
 334         struct nfs4_acl *sa_acl;
 335         struct xdr_netobj sa_label;
 336 };
 337
 338 struct nfsd4_setclientid {
 339         nfs4_verifier   se_verf;            /* request */
 340         struct xdr_netobj se_name;
 341         u32             se_callback_prog;   /* request */
 342         u32             se_callback_netid_len;  /* request */
 343         char *          se_callback_netid_val;  /* request */
 344         u32             se_callback_addr_len;   /* request */
 345         char *          se_callback_addr_val;   /* request */
 346         u32             se_callback_ident;  /* request */
 347         clientid_t      se_clientid;        /* response */
 348         nfs4_verifier   se_confirm;         /* response */
 349 };
 350
 351 struct nfsd4_setclientid_confirm {
 352         clientid_t      sc_clientid;
 353         nfs4_verifier   sc_confirm;
 354 };
 355
 356 struct nfsd4_saved_compoundargs {
 357         __be32 *p;
 358         __be32 *end;
 359         int pagelen;
 360         struct page **pagelist;
 361 };
 362
 363 struct nfsd4_test_stateid_id {
 364         __be32                  ts_id_status;
 365         stateid_t               ts_id_stateid;
 366         struct list_head        ts_id_list;
 367 };
 368
 369 struct nfsd4_test_stateid {
 370         u32             ts_num_ids;
 371         struct list_head ts_stateid_list;
 372 };
 373
 374 struct nfsd4_free_stateid {
 375         stateid_t       fr_stateid;         /* request */
 376 };
 377
 378 /* also used for NVERIFY */
 379 struct nfsd4_verify {
 380         u32             ve_bmval[3];        /* request */
 381         u32             ve_attrlen;         /* request */
 382         char *          ve_attrval;         /* request */
 383 };
 384
 385 struct nfsd4_write {
 386         stateid_t       wr_stateid;         /* request */
 387         u64             wr_offset;          /* request */
 388         u32             wr_stable_how;      /* request */
 389         u32             wr_buflen;          /* request */
 390         struct kvec     wr_head;
 391         struct page **  wr_pagelist;        /* request */
 392
 393         u32             wr_bytes_written;   /* response */
 394         u32             wr_how_written;     /* response */
 395         nfs4_verifier   wr_verifier;        /* response */
 396 };
 397
 398 struct nfsd4_exchange_id {
 399         nfs4_verifier   verifier;
 400         struct xdr_netobj clname;
 401         u32             flags;
 402         clientid_t      clientid;
 403         u32             seqid;
 404         int             spa_how;
 405 };
 406
 407 struct nfsd4_sequence {
 408         struct nfs4_sessionid   sessionid;              /* request/response */
 409         u32                     seqid;                  /* request/response */
 410         u32                     slotid;                 /* request/response */
 411         u32                     maxslots;               /* request/response */
 412         u32                     cachethis;              /* request */
 413 #if 0
 414         u32                     target_maxslots;        /* response */
 415 #endif /* not yet */
 416         u32                     status_flags;           /* response */
 417 };
 418
 419 struct nfsd4_destroy_session {
 420         struct nfs4_sessionid   sessionid;
 421 };
 422
 423 struct nfsd4_destroy_clientid {
 424         clientid_t clientid;
 425 };
 426
 427 struct nfsd4_reclaim_complete {
 428         u32 rca_one_fs;
 429 };
 430
 431 struct nfsd4_deviceid {
 432         u64                     fsid_idx;
 433         u32                     generation;
 434         u32                     pad;
 435 };
 436
 437 struct nfsd4_layout_seg {
 438         u32                     iomode;
 439         u64                     offset;
 440         u64                     length;
 441 };
 442
 443 struct nfsd4_getdeviceinfo {
 444         struct nfsd4_deviceid   gd_devid;       /* request */
 445         u32                     gd_layout_type; /* request */
 446         u32                     gd_maxcount;    /* request */
 447         u32                     gd_notify_types;/* request - response */
 448         void                    *gd_device;     /* response */
 449 };
 450
 451 struct nfsd4_layoutget {
 452         u64                     lg_minlength;   /* request */
 453         u32                     lg_signal;      /* request */
 454         u32                     lg_layout_type; /* request */
 455         u32                     lg_maxcount;    /* request */
 456         stateid_t               lg_sid;         /* request/response */
 457         struct nfsd4_layout_seg lg_seg;         /* request/response */
 458         void                    *lg_content;    /* response */
 459 };
 460
 461 struct nfsd4_layoutcommit {
 462         stateid_t               lc_sid;         /* request */
 463         struct nfsd4_layout_seg lc_seg;         /* request */
 464         u32                     lc_reclaim;     /* request */
 465         u32                     lc_newoffset;   /* request */
 466         u64                     lc_last_wr;     /* request */
 467         struct timespec         lc_mtime;       /* request */
 468         u32                     lc_layout_type; /* request */
 469         u32                     lc_up_len;      /* layout length */
 470         void                    *lc_up_layout;  /* decoded by callback */
 471         u32                     lc_size_chg;    /* boolean for response */
 472         u64                     lc_newsize;     /* response */
 473 };
 474
 475 struct nfsd4_layoutreturn {
 476         u32                     lr_return_type; /* request */
 477         u32                     lr_layout_type; /* request */
 478         struct nfsd4_layout_seg lr_seg;         /* request */
 479         u32                     lr_reclaim;     /* request */
 480         u32                     lrf_body_len;   /* request */
 481         void                    *lrf_body;      /* request */
 482         stateid_t               lr_sid;         /* request/response */
 483         u32                     lrs_present;    /* response */
 484 };
 485
 486 struct nfsd4_fallocate {
 487         /* request */
 488         stateid_t       falloc_stateid;
 489         loff_t          falloc_offset;
 490         u64             falloc_length;
 491 };
 492
 493 struct nfsd4_seek {
 494         /* request */
 495         stateid_t       seek_stateid;
 496         loff_t          seek_offset;
 497         u32             seek_whence;
 498
 499         /* response */
 500         u32             seek_eof;
 501         loff_t          seek_pos;
 502 };
 503
 504 struct nfsd4_op {
 505         int                                     opnum;
 506         __be32                                  status;
 507         union {
 508                 struct nfsd4_access             access;
 509                 struct nfsd4_close              close;
 510                 struct nfsd4_commit             commit;
 511                 struct nfsd4_create             create;
 512                 struct nfsd4_delegreturn        delegreturn;
 513                 struct nfsd4_getattr            getattr;
 514                 struct svc_fh *                 getfh;
 515                 struct nfsd4_link               link;
 516                 struct nfsd4_lock               lock;
 517                 struct nfsd4_lockt              lockt;
 518                 struct nfsd4_locku              locku;
 519                 struct nfsd4_lookup             lookup;
 520                 struct nfsd4_verify             nverify;
 521                 struct nfsd4_open               open;
 522                 struct nfsd4_open_confirm       open_confirm;
 523                 struct nfsd4_open_downgrade     open_downgrade;
 524                 struct nfsd4_putfh              putfh;
 525                 struct nfsd4_read               read;
 526                 struct nfsd4_readdir            readdir;
 527                 struct nfsd4_readlink           readlink;
 528                 struct nfsd4_remove             remove;
 529                 struct nfsd4_rename             rename;
 530                 clientid_t                      renew;
 531                 struct nfsd4_secinfo            secinfo;
 532                 struct nfsd4_setattr            setattr;
 533                 struct nfsd4_setclientid        setclientid;
 534                 struct nfsd4_setclientid_confirm setclientid_confirm;
 535                 struct nfsd4_verify             verify;
 536                 struct nfsd4_write              write;
 537                 struct nfsd4_release_lockowner  release_lockowner;
 538
 539                 /* NFSv4.1 */
 540                 struct nfsd4_exchange_id        exchange_id;
 541                 struct nfsd4_backchannel_ctl    backchannel_ctl;
 542                 struct nfsd4_bind_conn_to_session bind_conn_to_session;
 543                 struct nfsd4_create_session     create_session;
 544                 struct nfsd4_destroy_session    destroy_session;
 545                 struct nfsd4_sequence           sequence;
 546                 struct nfsd4_reclaim_complete   reclaim_complete;
 547                 struct nfsd4_test_stateid       test_stateid;
 548                 struct nfsd4_free_stateid       free_stateid;
 549                 struct nfsd4_getdeviceinfo      getdeviceinfo;
 550                 struct nfsd4_layoutget          layoutget;
 551                 struct nfsd4_layoutcommit       layoutcommit;
 552                 struct nfsd4_layoutreturn       layoutreturn;
 553
 554                 /* NFSv4.2 */
 555                 struct nfsd4_fallocate          allocate;
 556                 struct nfsd4_fallocate          deallocate;
 557                 struct nfsd4_seek               seek;
 558         } u;
 559         struct nfs4_replay *                    replay;
 560 };
 561
 562 bool nfsd4_cache_this_op(struct nfsd4_op *);
 563
 564 /*
 565  * Memory needed just for the duration of processing one compound:
 566  */
 567 struct svcxdr_tmpbuf {
 568         struct svcxdr_tmpbuf *next;
 569         char buf[];
 570 };
 571
 572 struct nfsd4_compoundargs {
 573         /* scratch variables for XDR decode */
 574         __be32 *                        p;
 575         __be32 *                        end;
 576         struct page **                  pagelist;
 577         int                             pagelen;
 578         __be32                          tmp[8];
 579         __be32 *                        tmpp;
 580         struct svcxdr_tmpbuf            *to_free;
 581
 582         struct svc_rqst                 *rqstp;
 583
 584         u32                             taglen;
 585         char *                          tag;
 586         u32                             minorversion;
 587         u32                             opcnt;
 588         struct nfsd4_op                 *ops;
 589         struct nfsd4_op                 iops[8];
 590         int                             cachetype;
 591 };
 592
 593 struct nfsd4_compoundres {
 594         /* scratch variables for XDR encode */
 595         struct xdr_stream               xdr;
 596         struct svc_rqst *               rqstp;
 597
 598         u32                             taglen;
 599         char *                          tag;
 600         u32                             opcnt;
 601         __be32 *                        tagp; /* tag, opcount encode location */
 602         struct nfsd4_compound_state     cstate;
 603 };
 604
 605 static inline bool nfsd4_is_solo_sequence(struct nfsd4_compoundres *resp)
 606 {
 607         struct nfsd4_compoundargs *args = resp->rqstp->rq_argp;
 608         return resp->opcnt == 1 && args->ops[0].opnum == OP_SEQUENCE;
 609 }
 610
 611 static inline bool nfsd4_not_cached(struct nfsd4_compoundres *resp)
 612 {
 613         return !(resp->cstate.slot->sl_flags & NFSD4_SLOT_CACHETHIS)
 614                 || nfsd4_is_solo_sequence(resp);
 615 }
 616
 617 static inline bool nfsd4_last_compound_op(struct svc_rqst *rqstp)
 618 {
 619         struct nfsd4_compoundres *resp = rqstp->rq_resp;
 620         struct nfsd4_compoundargs *argp = rqstp->rq_argp;
 621
 622         return argp->opcnt == resp->opcnt;
 623 }
 624
 625 int nfsd4_max_reply(struct svc_rqst *rqstp, struct nfsd4_op *op);
 626 void warn_on_nonidempotent_op(struct nfsd4_op *op);
 627
 628 #define NFS4_SVC_XDRSIZE                sizeof(struct nfsd4_compoundargs)
 629
 630 static inline void
 631 set_change_info(struct nfsd4_change_info *cinfo, struct svc_fh *fhp)
 632 {
 633         BUG_ON(!fhp->fh_pre_saved);
 634         cinfo->atomic = fhp->fh_post_saved;
 635         cinfo->change_supported = IS_I_VERSION(d_inode(fhp->fh_dentry));
 636
 637         cinfo->before_change = fhp->fh_pre_change;
 638         cinfo->after_change = fhp->fh_post_change;
 639         cinfo->before_ctime_sec = fhp->fh_pre_ctime.tv_sec;
 640         cinfo->before_ctime_nsec = fhp->fh_pre_ctime.tv_nsec;
 641         cinfo->after_ctime_sec = fhp->fh_post_attr.ctime.tv_sec;
 642         cinfo->after_ctime_nsec = fhp->fh_post_attr.ctime.tv_nsec;
 643
 644 }
 645
 646 int nfs4svc_encode_voidres(struct svc_rqst *, __be32 *, void *);
 647 int nfs4svc_decode_compoundargs(struct svc_rqst *, __be32 *,
 648                 struct nfsd4_compoundargs *);
 649 int nfs4svc_encode_compoundres(struct svc_rqst *, __be32 *,
 650                 struct nfsd4_compoundres *);
 651 __be32 nfsd4_check_resp_size(struct nfsd4_compoundres *, u32);
 652 void nfsd4_encode_operation(struct nfsd4_compoundres *, struct nfsd4_op *);
 653 void nfsd4_encode_replay(struct xdr_stream *xdr, struct nfsd4_op *op);
 654 __be32 nfsd4_encode_fattr_to_buf(__be32 **p, int words,
 655                 struct svc_fh *fhp, struct svc_export *exp,
 656                 struct dentry *dentry,
 657                 u32 *bmval, struct svc_rqst *, int ignore_crossmnt);
 658 extern __be32 nfsd4_setclientid(struct svc_rqst *rqstp,
 659                 struct nfsd4_compound_state *,
 660                 struct nfsd4_setclientid *setclid);
 661 extern __be32 nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
 662                 struct nfsd4_compound_state *,
 663                 struct nfsd4_setclientid_confirm *setclientid_confirm);
 664 extern __be32 nfsd4_exchange_id(struct svc_rqst *rqstp,
 665                 struct nfsd4_compound_state *, struct nfsd4_exchange_id *);
 666 extern __be32 nfsd4_backchannel_ctl(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_backchannel_ctl *);
 667 extern __be32 nfsd4_bind_conn_to_session(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_bind_conn_to_session *);
 668 extern __be32 nfsd4_create_session(struct svc_rqst *,
 669                 struct nfsd4_compound_state *,
 670                 struct nfsd4_create_session *);
 671 extern __be32 nfsd4_sequence(struct svc_rqst *,
 672                 struct nfsd4_compound_state *,
 673                 struct nfsd4_sequence *);
 674 extern void nfsd4_sequence_done(struct nfsd4_compoundres *resp);
 675 extern __be32 nfsd4_destroy_session(struct svc_rqst *,
 676                 struct nfsd4_compound_state *,
 677                 struct nfsd4_destroy_session *);
 678 extern __be32 nfsd4_destroy_clientid(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_destroy_clientid *);
 679 __be32 nfsd4_reclaim_complete(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_reclaim_complete *);
 680 extern __be32 nfsd4_process_open1(struct nfsd4_compound_state *,
 681                 struct nfsd4_open *open, struct nfsd_net *nn);
 682 extern __be32 nfsd4_process_open2(struct svc_rqst *rqstp,
 683                 struct svc_fh *current_fh, struct nfsd4_open *open);
 684 extern void nfsd4_cstate_clear_replay(struct nfsd4_compound_state *cstate);
 685 extern void nfsd4_cleanup_open_state(struct nfsd4_compound_state *cstate,
 686                 struct nfsd4_open *open);
 687 extern __be32 nfsd4_open_confirm(struct svc_rqst *rqstp,
 688                 struct nfsd4_compound_state *, struct nfsd4_open_confirm *oc);
 689 extern __be32 nfsd4_close(struct svc_rqst *rqstp,
 690                 struct nfsd4_compound_state *,
 691                 struct nfsd4_close *close);
 692 extern __be32 nfsd4_open_downgrade(struct svc_rqst *rqstp,
 693                 struct nfsd4_compound_state *,
 694                 struct nfsd4_open_downgrade *od);
 695 extern __be32 nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
 696                 struct nfsd4_lock *lock);
 697 extern __be32 nfsd4_lockt(struct svc_rqst *rqstp,
 698                 struct nfsd4_compound_state *,
 699                 struct nfsd4_lockt *lockt);
 700 extern __be32 nfsd4_locku(struct svc_rqst *rqstp,
 701                 struct nfsd4_compound_state *,
 702                 struct nfsd4_locku *locku);
 703 extern __be32
 704 nfsd4_release_lockowner(struct svc_rqst *rqstp,
 705                 struct nfsd4_compound_state *,
 706                 struct nfsd4_release_lockowner *rlockowner);
 707 extern int nfsd4_release_compoundargs(void *rq, __be32 *p, void *resp);
 708 extern __be32 nfsd4_delegreturn(struct svc_rqst *rqstp,
 709                 struct nfsd4_compound_state *, struct nfsd4_delegreturn *dr);
 710 extern __be32 nfsd4_renew(struct svc_rqst *rqstp,
 711                           struct nfsd4_compound_state *, clientid_t *clid);
 712 extern __be32 nfsd4_test_stateid(struct svc_rqst *rqstp,
 713                 struct nfsd4_compound_state *, struct nfsd4_test_stateid *test_stateid);
 714 extern __be32 nfsd4_free_stateid(struct svc_rqst *rqstp,
 715                 struct nfsd4_compound_state *, struct nfsd4_free_stateid *free_stateid);
 716 extern void nfsd4_bump_seqid(struct nfsd4_compound_state *, __be32 nfserr);
 717
 718 #endif
 719
 720 /*
 721  * Local variables:
 722  *  c-basic-offset: 8
 723  * End:
 724  */