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         bool            rd_tmp_file;
 277
 278         struct svc_rqst *rd_rqstp;          /* response */
 279         struct svc_fh * rd_fhp;             /* response */
 280 };
 281
 282 struct nfsd4_readdir {
 283         u64             rd_cookie;          /* request */
 284         nfs4_verifier   rd_verf;            /* request */
 285         u32             rd_dircount;        /* request */
 286         u32             rd_maxcount;        /* request */
 287         u32             rd_bmval[3];        /* request */
 288         struct svc_rqst *rd_rqstp;          /* response */
 289         struct svc_fh * rd_fhp;             /* response */
 290
 291         struct readdir_cd       common;
 292         struct xdr_stream       *xdr;
 293         int                     cookie_offset;
 294 };
 295
 296 struct nfsd4_release_lockowner {
 297         clientid_t        rl_clientid;
 298         struct xdr_netobj rl_owner;
 299 };
 300 struct nfsd4_readlink {
 301         struct svc_rqst *rl_rqstp;          /* request */
 302         struct svc_fh * rl_fhp;             /* request */
 303 };
 304
 305 struct nfsd4_remove {
 306         u32             rm_namelen;         /* request */
 307         char *          rm_name;            /* request */
 308         struct nfsd4_change_info  rm_cinfo; /* response */
 309 };
 310
 311 struct nfsd4_rename {
 312         u32             rn_snamelen;        /* request */
 313         char *          rn_sname;           /* request */
 314         u32             rn_tnamelen;        /* request */
 315         char *          rn_tname;           /* request */
 316         struct nfsd4_change_info  rn_sinfo; /* response */
 317         struct nfsd4_change_info  rn_tinfo; /* response */
 318 };
 319
 320 struct nfsd4_secinfo {
 321         u32 si_namelen;                                 /* request */
 322         char *si_name;                                  /* request */
 323         struct svc_export *si_exp;                      /* response */
 324 };
 325
 326 struct nfsd4_secinfo_no_name {
 327         u32 sin_style;                                  /* request */
 328         struct svc_export *sin_exp;                     /* response */
 329 };
 330
 331 struct nfsd4_setattr {
 332         stateid_t       sa_stateid;         /* request */
 333         u32             sa_bmval[3];        /* request */
 334         struct iattr    sa_iattr;           /* request */
 335         struct nfs4_acl *sa_acl;
 336         struct xdr_netobj sa_label;
 337 };
 338
 339 struct nfsd4_setclientid {
 340         nfs4_verifier   se_verf;            /* request */
 341         struct xdr_netobj se_name;
 342         u32             se_callback_prog;   /* request */
 343         u32             se_callback_netid_len;  /* request */
 344         char *          se_callback_netid_val;  /* request */
 345         u32             se_callback_addr_len;   /* request */
 346         char *          se_callback_addr_val;   /* request */
 347         u32             se_callback_ident;  /* request */
 348         clientid_t      se_clientid;        /* response */
 349         nfs4_verifier   se_confirm;         /* response */
 350 };
 351
 352 struct nfsd4_setclientid_confirm {
 353         clientid_t      sc_clientid;
 354         nfs4_verifier   sc_confirm;
 355 };
 356
 357 struct nfsd4_saved_compoundargs {
 358         __be32 *p;
 359         __be32 *end;
 360         int pagelen;
 361         struct page **pagelist;
 362 };
 363
 364 struct nfsd4_test_stateid_id {
 365         __be32                  ts_id_status;
 366         stateid_t               ts_id_stateid;
 367         struct list_head        ts_id_list;
 368 };
 369
 370 struct nfsd4_test_stateid {
 371         u32             ts_num_ids;
 372         struct list_head ts_stateid_list;
 373 };
 374
 375 struct nfsd4_free_stateid {
 376         stateid_t       fr_stateid;         /* request */
 377 };
 378
 379 /* also used for NVERIFY */
 380 struct nfsd4_verify {
 381         u32             ve_bmval[3];        /* request */
 382         u32             ve_attrlen;         /* request */
 383         char *          ve_attrval;         /* request */
 384 };
 385
 386 struct nfsd4_write {
 387         stateid_t       wr_stateid;         /* request */
 388         u64             wr_offset;          /* request */
 389         u32             wr_stable_how;      /* request */
 390         u32             wr_buflen;          /* request */
 391         struct kvec     wr_head;
 392         struct page **  wr_pagelist;        /* request */
 393
 394         u32             wr_bytes_written;   /* response */
 395         u32             wr_how_written;     /* response */
 396         nfs4_verifier   wr_verifier;        /* response */
 397 };
 398
 399 struct nfsd4_exchange_id {
 400         nfs4_verifier   verifier;
 401         struct xdr_netobj clname;
 402         u32             flags;
 403         clientid_t      clientid;
 404         u32             seqid;
 405         int             spa_how;
 406 };
 407
 408 struct nfsd4_sequence {
 409         struct nfs4_sessionid   sessionid;              /* request/response */
 410         u32                     seqid;                  /* request/response */
 411         u32                     slotid;                 /* request/response */
 412         u32                     maxslots;               /* request/response */
 413         u32                     cachethis;              /* request */
 414 #if 0
 415         u32                     target_maxslots;        /* response */
 416 #endif /* not yet */
 417         u32                     status_flags;           /* response */
 418 };
 419
 420 struct nfsd4_destroy_session {
 421         struct nfs4_sessionid   sessionid;
 422 };
 423
 424 struct nfsd4_destroy_clientid {
 425         clientid_t clientid;
 426 };
 427
 428 struct nfsd4_reclaim_complete {
 429         u32 rca_one_fs;
 430 };
 431
 432 struct nfsd4_deviceid {
 433         u64                     fsid_idx;
 434         u32                     generation;
 435         u32                     pad;
 436 };
 437
 438 struct nfsd4_layout_seg {
 439         u32                     iomode;
 440         u64                     offset;
 441         u64                     length;
 442 };
 443
 444 struct nfsd4_getdeviceinfo {
 445         struct nfsd4_deviceid   gd_devid;       /* request */
 446         u32                     gd_layout_type; /* request */
 447         u32                     gd_maxcount;    /* request */
 448         u32                     gd_notify_types;/* request - response */
 449         void                    *gd_device;     /* response */
 450 };
 451
 452 struct nfsd4_layoutget {
 453         u64                     lg_minlength;   /* request */
 454         u32                     lg_signal;      /* request */
 455         u32                     lg_layout_type; /* request */
 456         u32                     lg_maxcount;    /* request */
 457         stateid_t               lg_sid;         /* request/response */
 458         struct nfsd4_layout_seg lg_seg;         /* request/response */
 459         void                    *lg_content;    /* response */
 460 };
 461
 462 struct nfsd4_layoutcommit {
 463         stateid_t               lc_sid;         /* request */
 464         struct nfsd4_layout_seg lc_seg;         /* request */
 465         u32                     lc_reclaim;     /* request */
 466         u32                     lc_newoffset;   /* request */
 467         u64                     lc_last_wr;     /* request */
 468         struct timespec         lc_mtime;       /* request */
 469         u32                     lc_layout_type; /* request */
 470         u32                     lc_up_len;      /* layout length */
 471         void                    *lc_up_layout;  /* decoded by callback */
 472         u32                     lc_size_chg;    /* boolean for response */
 473         u64                     lc_newsize;     /* response */
 474 };
 475
 476 struct nfsd4_layoutreturn {
 477         u32                     lr_return_type; /* request */
 478         u32                     lr_layout_type; /* request */
 479         struct nfsd4_layout_seg lr_seg;         /* request */
 480         u32                     lr_reclaim;     /* request */
 481         u32                     lrf_body_len;   /* request */
 482         void                    *lrf_body;      /* request */
 483         stateid_t               lr_sid;         /* request/response */
 484         u32                     lrs_present;    /* response */
 485 };
 486
 487 struct nfsd4_fallocate {
 488         /* request */
 489         stateid_t       falloc_stateid;
 490         loff_t          falloc_offset;
 491         u64             falloc_length;
 492 };
 493
 494 struct nfsd4_clone {
 495         /* request */
 496         stateid_t       cl_src_stateid;
 497         stateid_t       cl_dst_stateid;
 498         u64             cl_src_pos;
 499         u64             cl_dst_pos;
 500         u64             cl_count;
 501 };
 502
 503 struct nfsd4_seek {
 504         /* request */
 505         stateid_t       seek_stateid;
 506         loff_t          seek_offset;
 507         u32             seek_whence;
 508
 509         /* response */
 510         u32             seek_eof;
 511         loff_t          seek_pos;
 512 };
 513
 514 struct nfsd4_op {
 515         int                                     opnum;
 516         __be32                                  status;
 517         union {
 518                 struct nfsd4_access             access;
 519                 struct nfsd4_close              close;
 520                 struct nfsd4_commit             commit;
 521                 struct nfsd4_create             create;
 522                 struct nfsd4_delegreturn        delegreturn;
 523                 struct nfsd4_getattr            getattr;
 524                 struct svc_fh *                 getfh;
 525                 struct nfsd4_link               link;
 526                 struct nfsd4_lock               lock;
 527                 struct nfsd4_lockt              lockt;
 528                 struct nfsd4_locku              locku;
 529                 struct nfsd4_lookup             lookup;
 530                 struct nfsd4_verify             nverify;
 531                 struct nfsd4_open               open;
 532                 struct nfsd4_open_confirm       open_confirm;
 533                 struct nfsd4_open_downgrade     open_downgrade;
 534                 struct nfsd4_putfh              putfh;
 535                 struct nfsd4_read               read;
 536                 struct nfsd4_readdir            readdir;
 537                 struct nfsd4_readlink           readlink;
 538                 struct nfsd4_remove             remove;
 539                 struct nfsd4_rename             rename;
 540                 clientid_t                      renew;
 541                 struct nfsd4_secinfo            secinfo;
 542                 struct nfsd4_setattr            setattr;
 543                 struct nfsd4_setclientid        setclientid;
 544                 struct nfsd4_setclientid_confirm setclientid_confirm;
 545                 struct nfsd4_verify             verify;
 546                 struct nfsd4_write              write;
 547                 struct nfsd4_release_lockowner  release_lockowner;
 548
 549                 /* NFSv4.1 */
 550                 struct nfsd4_exchange_id        exchange_id;
 551                 struct nfsd4_backchannel_ctl    backchannel_ctl;
 552                 struct nfsd4_bind_conn_to_session bind_conn_to_session;
 553                 struct nfsd4_create_session     create_session;
 554                 struct nfsd4_destroy_session    destroy_session;
 555                 struct nfsd4_sequence           sequence;
 556                 struct nfsd4_reclaim_complete   reclaim_complete;
 557                 struct nfsd4_test_stateid       test_stateid;
 558                 struct nfsd4_free_stateid       free_stateid;
 559                 struct nfsd4_getdeviceinfo      getdeviceinfo;
 560                 struct nfsd4_layoutget          layoutget;
 561                 struct nfsd4_layoutcommit       layoutcommit;
 562                 struct nfsd4_layoutreturn       layoutreturn;
 563
 564                 /* NFSv4.2 */
 565                 struct nfsd4_fallocate          allocate;
 566                 struct nfsd4_fallocate          deallocate;
 567                 struct nfsd4_clone              clone;
 568                 struct nfsd4_seek               seek;
 569         } u;
 570         struct nfs4_replay *                    replay;
 571 };
 572
 573 bool nfsd4_cache_this_op(struct nfsd4_op *);
 574
 575 /*
 576  * Memory needed just for the duration of processing one compound:
 577  */
 578 struct svcxdr_tmpbuf {
 579         struct svcxdr_tmpbuf *next;
 580         char buf[];
 581 };
 582
 583 struct nfsd4_compoundargs {
 584         /* scratch variables for XDR decode */
 585         __be32 *                        p;
 586         __be32 *                        end;
 587         struct page **                  pagelist;
 588         int                             pagelen;
 589         __be32                          tmp[8];
 590         __be32 *                        tmpp;
 591         struct svcxdr_tmpbuf            *to_free;
 592
 593         struct svc_rqst                 *rqstp;
 594
 595         u32                             taglen;
 596         char *                          tag;
 597         u32                             minorversion;
 598         u32                             opcnt;
 599         struct nfsd4_op                 *ops;
 600         struct nfsd4_op                 iops[8];
 601         int                             cachetype;
 602 };
 603
 604 struct nfsd4_compoundres {
 605         /* scratch variables for XDR encode */
 606         struct xdr_stream               xdr;
 607         struct svc_rqst *               rqstp;
 608
 609         u32                             taglen;
 610         char *                          tag;
 611         u32                             opcnt;
 612         __be32 *                        tagp; /* tag, opcount encode location */
 613         struct nfsd4_compound_state     cstate;
 614 };
 615
 616 static inline bool nfsd4_is_solo_sequence(struct nfsd4_compoundres *resp)
 617 {
 618         struct nfsd4_compoundargs *args = resp->rqstp->rq_argp;
 619         return resp->opcnt == 1 && args->ops[0].opnum == OP_SEQUENCE;
 620 }
 621
 622 static inline bool nfsd4_not_cached(struct nfsd4_compoundres *resp)
 623 {
 624         return !(resp->cstate.slot->sl_flags & NFSD4_SLOT_CACHETHIS)
 625                 || nfsd4_is_solo_sequence(resp);
 626 }
 627
 628 static inline bool nfsd4_last_compound_op(struct svc_rqst *rqstp)
 629 {
 630         struct nfsd4_compoundres *resp = rqstp->rq_resp;
 631         struct nfsd4_compoundargs *argp = rqstp->rq_argp;
 632
 633         return argp->opcnt == resp->opcnt;
 634 }
 635
 636 int nfsd4_max_reply(struct svc_rqst *rqstp, struct nfsd4_op *op);
 637 void warn_on_nonidempotent_op(struct nfsd4_op *op);
 638
 639 #define NFS4_SVC_XDRSIZE                sizeof(struct nfsd4_compoundargs)
 640
 641 static inline void
 642 set_change_info(struct nfsd4_change_info *cinfo, struct svc_fh *fhp)
 643 {
 644         BUG_ON(!fhp->fh_pre_saved);
 645         cinfo->atomic = (u32)fhp->fh_post_saved;
 646         cinfo->change_supported = IS_I_VERSION(d_inode(fhp->fh_dentry));
 647
 648         cinfo->before_change = fhp->fh_pre_change;
 649         cinfo->after_change = fhp->fh_post_change;
 650         cinfo->before_ctime_sec = fhp->fh_pre_ctime.tv_sec;
 651         cinfo->before_ctime_nsec = fhp->fh_pre_ctime.tv_nsec;
 652         cinfo->after_ctime_sec = fhp->fh_post_attr.ctime.tv_sec;
 653         cinfo->after_ctime_nsec = fhp->fh_post_attr.ctime.tv_nsec;
 654
 655 }
 656
 657 int nfs4svc_encode_voidres(struct svc_rqst *, __be32 *, void *);
 658 int nfs4svc_decode_compoundargs(struct svc_rqst *, __be32 *,
 659                 struct nfsd4_compoundargs *);
 660 int nfs4svc_encode_compoundres(struct svc_rqst *, __be32 *,
 661                 struct nfsd4_compoundres *);
 662 __be32 nfsd4_check_resp_size(struct nfsd4_compoundres *, u32);
 663 void nfsd4_encode_operation(struct nfsd4_compoundres *, struct nfsd4_op *);
 664 void nfsd4_encode_replay(struct xdr_stream *xdr, struct nfsd4_op *op);
 665 __be32 nfsd4_encode_fattr_to_buf(__be32 **p, int words,
 666                 struct svc_fh *fhp, struct svc_export *exp,
 667                 struct dentry *dentry,
 668                 u32 *bmval, struct svc_rqst *, int ignore_crossmnt);
 669 extern __be32 nfsd4_setclientid(struct svc_rqst *rqstp,
 670                 struct nfsd4_compound_state *,
 671                 struct nfsd4_setclientid *setclid);
 672 extern __be32 nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
 673                 struct nfsd4_compound_state *,
 674                 struct nfsd4_setclientid_confirm *setclientid_confirm);
 675 extern __be32 nfsd4_exchange_id(struct svc_rqst *rqstp,
 676                 struct nfsd4_compound_state *, struct nfsd4_exchange_id *);
 677 extern __be32 nfsd4_backchannel_ctl(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_backchannel_ctl *);
 678 extern __be32 nfsd4_bind_conn_to_session(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_bind_conn_to_session *);
 679 extern __be32 nfsd4_create_session(struct svc_rqst *,
 680                 struct nfsd4_compound_state *,
 681                 struct nfsd4_create_session *);
 682 extern __be32 nfsd4_sequence(struct svc_rqst *,
 683                 struct nfsd4_compound_state *,
 684                 struct nfsd4_sequence *);
 685 extern void nfsd4_sequence_done(struct nfsd4_compoundres *resp);
 686 extern __be32 nfsd4_destroy_session(struct svc_rqst *,
 687                 struct nfsd4_compound_state *,
 688                 struct nfsd4_destroy_session *);
 689 extern __be32 nfsd4_destroy_clientid(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_destroy_clientid *);
 690 __be32 nfsd4_reclaim_complete(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_reclaim_complete *);
 691 extern __be32 nfsd4_process_open1(struct nfsd4_compound_state *,
 692                 struct nfsd4_open *open, struct nfsd_net *nn);
 693 extern __be32 nfsd4_process_open2(struct svc_rqst *rqstp,
 694                 struct svc_fh *current_fh, struct nfsd4_open *open);
 695 extern void nfsd4_cstate_clear_replay(struct nfsd4_compound_state *cstate);
 696 extern void nfsd4_cleanup_open_state(struct nfsd4_compound_state *cstate,
 697                 struct nfsd4_open *open);
 698 extern __be32 nfsd4_open_confirm(struct svc_rqst *rqstp,
 699                 struct nfsd4_compound_state *, struct nfsd4_open_confirm *oc);
 700 extern __be32 nfsd4_close(struct svc_rqst *rqstp,
 701                 struct nfsd4_compound_state *,
 702                 struct nfsd4_close *close);
 703 extern __be32 nfsd4_open_downgrade(struct svc_rqst *rqstp,
 704                 struct nfsd4_compound_state *,
 705                 struct nfsd4_open_downgrade *od);
 706 extern __be32 nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
 707                 struct nfsd4_lock *lock);
 708 extern __be32 nfsd4_lockt(struct svc_rqst *rqstp,
 709                 struct nfsd4_compound_state *,
 710                 struct nfsd4_lockt *lockt);
 711 extern __be32 nfsd4_locku(struct svc_rqst *rqstp,
 712                 struct nfsd4_compound_state *,
 713                 struct nfsd4_locku *locku);
 714 extern __be32
 715 nfsd4_release_lockowner(struct svc_rqst *rqstp,
 716                 struct nfsd4_compound_state *,
 717                 struct nfsd4_release_lockowner *rlockowner);
 718 extern int nfsd4_release_compoundargs(void *rq, __be32 *p, void *resp);
 719 extern __be32 nfsd4_delegreturn(struct svc_rqst *rqstp,
 720                 struct nfsd4_compound_state *, struct nfsd4_delegreturn *dr);
 721 extern __be32 nfsd4_renew(struct svc_rqst *rqstp,
 722                           struct nfsd4_compound_state *, clientid_t *clid);
 723 extern __be32 nfsd4_test_stateid(struct svc_rqst *rqstp,
 724                 struct nfsd4_compound_state *, struct nfsd4_test_stateid *test_stateid);
 725 extern __be32 nfsd4_free_stateid(struct svc_rqst *rqstp,
 726                 struct nfsd4_compound_state *, struct nfsd4_free_stateid *free_stateid);
 727 extern void nfsd4_bump_seqid(struct nfsd4_compound_state *, __be32 nfserr);
 728
 729 #endif
 730
 731 /*
 732  * Local variables:
 733  *  c-basic-offset: 8
 734  * End:
 735  */