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         /* For sessions DRC */
  58         struct nfsd4_session    *session;
  59         struct nfsd4_slot       *slot;
  60         __be32                  *datap;
  61         size_t                  iovlen;
  62         u32                     minorversion;
  63         __be32                  status;
  64         stateid_t       current_stateid;
  65         stateid_t       save_stateid;
  66         /* to indicate current and saved state id presents */
  67         u32             sid_flags;
  68 };
  69
  70 static inline bool nfsd4_has_session(struct nfsd4_compound_state *cs)
  71 {
  72         return cs->slot != NULL;
  73 }
  74
  75 struct nfsd4_change_info {
  76         u32             atomic;
  77         bool            change_supported;
  78         u32             before_ctime_sec;
  79         u32             before_ctime_nsec;
  80         u64             before_change;
  81         u32             after_ctime_sec;
  82         u32             after_ctime_nsec;
  83         u64             after_change;
  84 };
  85
  86 struct nfsd4_access {
  87         u32             ac_req_access;      /* request */
  88         u32             ac_supported;       /* response */
  89         u32             ac_resp_access;     /* response */
  90 };
  91
  92 struct nfsd4_close {
  93         u32             cl_seqid;           /* request */
  94         stateid_t       cl_stateid;         /* request+response */
  95 };
  96
  97 struct nfsd4_commit {
  98         u64             co_offset;          /* request */
  99         u32             co_count;           /* request */
 100         nfs4_verifier   co_verf;            /* response */
 101 };
 102
 103 struct nfsd4_create {
 104         u32             cr_namelen;         /* request */
 105         char *          cr_name;            /* request */
 106         u32             cr_type;            /* request */
 107         union {                             /* request */
 108                 struct {
 109                         u32 namelen;
 110                         char *name;
 111                 } link;   /* NF4LNK */
 112                 struct {
 113                         u32 specdata1;
 114                         u32 specdata2;
 115                 } dev;    /* NF4BLK, NF4CHR */
 116         } u;
 117         u32             cr_bmval[3];        /* request */
 118         struct iattr    cr_iattr;           /* request */
 119         struct nfsd4_change_info  cr_cinfo; /* response */
 120         struct nfs4_acl *cr_acl;
 121 };
 122 #define cr_linklen      u.link.namelen
 123 #define cr_linkname     u.link.name
 124 #define cr_specdata1    u.dev.specdata1
 125 #define cr_specdata2    u.dev.specdata2
 126
 127 struct nfsd4_delegreturn {
 128         stateid_t       dr_stateid;
 129 };
 130
 131 struct nfsd4_getattr {
 132         u32             ga_bmval[3];        /* request */
 133         struct svc_fh   *ga_fhp;            /* response */
 134 };
 135
 136 struct nfsd4_link {
 137         u32             li_namelen;         /* request */
 138         char *          li_name;            /* request */
 139         struct nfsd4_change_info  li_cinfo; /* response */
 140 };
 141
 142 struct nfsd4_lock_denied {
 143         clientid_t      ld_clientid;
 144         struct xdr_netobj       ld_owner;
 145         u64             ld_start;
 146         u64             ld_length;
 147         u32             ld_type;
 148 };
 149
 150 struct nfsd4_lock {
 151         /* request */
 152         u32             lk_type;
 153         u32             lk_reclaim;         /* boolean */
 154         u64             lk_offset;
 155         u64             lk_length;
 156         u32             lk_is_new;
 157         union {
 158                 struct {
 159                         u32             open_seqid;
 160                         stateid_t       open_stateid;
 161                         u32             lock_seqid;
 162                         clientid_t      clientid;
 163                         struct xdr_netobj owner;
 164                 } new;
 165                 struct {
 166                         stateid_t       lock_stateid;
 167                         u32             lock_seqid;
 168                 } old;
 169         } v;
 170
 171         /* response */
 172         union {
 173                 struct {
 174                         stateid_t               stateid;
 175                 } ok;
 176                 struct nfsd4_lock_denied        denied;
 177         } u;
 178 };
 179 #define lk_new_open_seqid       v.new.open_seqid
 180 #define lk_new_open_stateid     v.new.open_stateid
 181 #define lk_new_lock_seqid       v.new.lock_seqid
 182 #define lk_new_clientid         v.new.clientid
 183 #define lk_new_owner            v.new.owner
 184 #define lk_old_lock_stateid     v.old.lock_stateid
 185 #define lk_old_lock_seqid       v.old.lock_seqid
 186
 187 #define lk_rflags       u.ok.rflags
 188 #define lk_resp_stateid u.ok.stateid
 189 #define lk_denied       u.denied
 190
 191
 192 struct nfsd4_lockt {
 193         u32                             lt_type;
 194         clientid_t                      lt_clientid;
 195         struct xdr_netobj               lt_owner;
 196         u64                             lt_offset;
 197         u64                             lt_length;
 198         struct nfsd4_lock_denied        lt_denied;
 199 };
 200
 201
 202 struct nfsd4_locku {
 203         u32             lu_type;
 204         u32             lu_seqid;
 205         stateid_t       lu_stateid;
 206         u64             lu_offset;
 207         u64             lu_length;
 208 };
 209
 210
 211 struct nfsd4_lookup {
 212         u32             lo_len;             /* request */
 213         char *          lo_name;            /* request */
 214 };
 215
 216 struct nfsd4_putfh {
 217         u32             pf_fhlen;           /* request */
 218         char            *pf_fhval;          /* request */
 219 };
 220
 221 struct nfsd4_open {
 222         u32             op_claim_type;      /* request */
 223         struct xdr_netobj op_fname;         /* request - everything but CLAIM_PREV */
 224         u32             op_delegate_type;   /* request - CLAIM_PREV only */
 225         stateid_t       op_delegate_stateid; /* request - response */
 226         u32             op_why_no_deleg;    /* response - DELEG_NONE_EXT only */
 227         u32             op_create;          /* request */
 228         u32             op_createmode;      /* request */
 229         u32             op_bmval[3];        /* request */
 230         struct iattr    iattr;              /* UNCHECKED4, GUARDED4, EXCLUSIVE4_1 */
 231         nfs4_verifier   op_verf __attribute__((aligned(32)));
 232                                             /* EXCLUSIVE4 */
 233         clientid_t      op_clientid;        /* request */
 234         struct xdr_netobj op_owner;           /* request */
 235         u32             op_seqid;           /* request */
 236         u32             op_share_access;    /* request */
 237         u32             op_share_deny;      /* request */
 238         u32             op_deleg_want;      /* request */
 239         stateid_t       op_stateid;         /* response */
 240         u32             op_recall;          /* recall */
 241         struct nfsd4_change_info  op_cinfo; /* response */
 242         u32             op_rflags;          /* response */
 243         bool            op_truncate;        /* used during processing */
 244         bool            op_created;         /* used during processing */
 245         struct nfs4_openowner *op_openowner; /* used during processing */
 246         struct nfs4_file *op_file;          /* used during processing */
 247         struct nfs4_ol_stateid *op_stp;     /* used during processing */
 248         struct nfs4_acl *op_acl;
 249 };
 250 #define op_iattr        iattr
 251
 252 struct nfsd4_open_confirm {
 253         stateid_t       oc_req_stateid          /* request */;
 254         u32             oc_seqid                /* request */;
 255         stateid_t       oc_resp_stateid         /* response */;
 256 };
 257
 258 struct nfsd4_open_downgrade {
 259         stateid_t       od_stateid;
 260         u32             od_seqid;
 261         u32             od_share_access;        /* request */
 262         u32             od_deleg_want;          /* request */
 263         u32             od_share_deny;          /* request */
 264 };
 265
 266
 267 struct nfsd4_read {
 268         stateid_t       rd_stateid;         /* request */
 269         u64             rd_offset;          /* request */
 270         u32             rd_length;          /* request */
 271         int             rd_vlen;
 272         struct file     *rd_filp;
 273
 274         struct svc_rqst *rd_rqstp;          /* response */
 275         struct svc_fh * rd_fhp;             /* response */
 276 };
 277
 278 struct nfsd4_readdir {
 279         u64             rd_cookie;          /* request */
 280         nfs4_verifier   rd_verf;            /* request */
 281         u32             rd_dircount;        /* request */
 282         u32             rd_maxcount;        /* request */
 283         u32             rd_bmval[3];        /* request */
 284         struct svc_rqst *rd_rqstp;          /* response */
 285         struct svc_fh * rd_fhp;             /* response */
 286
 287         struct readdir_cd       common;
 288         __be32 *                buffer;
 289         int                     buflen;
 290         __be32 *                offset;
 291 };
 292
 293 struct nfsd4_release_lockowner {
 294         clientid_t        rl_clientid;
 295         struct xdr_netobj rl_owner;
 296 };
 297 struct nfsd4_readlink {
 298         struct svc_rqst *rl_rqstp;          /* request */
 299         struct svc_fh * rl_fhp;             /* request */
 300 };
 301
 302 struct nfsd4_remove {
 303         u32             rm_namelen;         /* request */
 304         char *          rm_name;            /* request */
 305         struct nfsd4_change_info  rm_cinfo; /* response */
 306 };
 307
 308 struct nfsd4_rename {
 309         u32             rn_snamelen;        /* request */
 310         char *          rn_sname;           /* request */
 311         u32             rn_tnamelen;        /* request */
 312         char *          rn_tname;           /* request */
 313         struct nfsd4_change_info  rn_sinfo; /* response */
 314         struct nfsd4_change_info  rn_tinfo; /* response */
 315 };
 316
 317 struct nfsd4_secinfo {
 318         u32 si_namelen;                                 /* request */
 319         char *si_name;                                  /* request */
 320         struct svc_export *si_exp;                      /* response */
 321 };
 322
 323 struct nfsd4_secinfo_no_name {
 324         u32 sin_style;                                  /* request */
 325         struct svc_export *sin_exp;                     /* response */
 326 };
 327
 328 struct nfsd4_setattr {
 329         stateid_t       sa_stateid;         /* request */
 330         u32             sa_bmval[3];        /* request */
 331         struct iattr    sa_iattr;           /* request */
 332         struct nfs4_acl *sa_acl;
 333 };
 334
 335 struct nfsd4_setclientid {
 336         nfs4_verifier   se_verf;            /* request */
 337         struct xdr_netobj se_name;
 338         u32             se_callback_prog;   /* request */
 339         u32             se_callback_netid_len;  /* request */
 340         char *          se_callback_netid_val;  /* request */
 341         u32             se_callback_addr_len;   /* request */
 342         char *          se_callback_addr_val;   /* request */
 343         u32             se_callback_ident;  /* request */
 344         clientid_t      se_clientid;        /* response */
 345         nfs4_verifier   se_confirm;         /* response */
 346 };
 347
 348 struct nfsd4_setclientid_confirm {
 349         clientid_t      sc_clientid;
 350         nfs4_verifier   sc_confirm;
 351 };
 352
 353 struct nfsd4_saved_compoundargs {
 354         __be32 *p;
 355         __be32 *end;
 356         int pagelen;
 357         struct page **pagelist;
 358 };
 359
 360 struct nfsd4_test_stateid_id {
 361         __be32                  ts_id_status;
 362         stateid_t               ts_id_stateid;
 363         struct list_head        ts_id_list;
 364 };
 365
 366 struct nfsd4_test_stateid {
 367         u32             ts_num_ids;
 368         struct list_head ts_stateid_list;
 369 };
 370
 371 struct nfsd4_free_stateid {
 372         stateid_t       fr_stateid;         /* request */
 373         __be32          fr_status;          /* response */
 374 };
 375
 376 /* also used for NVERIFY */
 377 struct nfsd4_verify {
 378         u32             ve_bmval[3];        /* request */
 379         u32             ve_attrlen;         /* request */
 380         char *          ve_attrval;         /* request */
 381 };
 382
 383 struct nfsd4_write {
 384         stateid_t       wr_stateid;         /* request */
 385         u64             wr_offset;          /* request */
 386         u32             wr_stable_how;      /* request */
 387         u32             wr_buflen;          /* request */
 388         struct kvec     wr_head;
 389         struct page **  wr_pagelist;        /* request */
 390
 391         u32             wr_bytes_written;   /* response */
 392         u32             wr_how_written;     /* response */
 393         nfs4_verifier   wr_verifier;        /* response */
 394 };
 395
 396 struct nfsd4_exchange_id {
 397         nfs4_verifier   verifier;
 398         struct xdr_netobj clname;
 399         u32             flags;
 400         clientid_t      clientid;
 401         u32             seqid;
 402         int             spa_how;
 403 };
 404
 405 struct nfsd4_sequence {
 406         struct nfs4_sessionid   sessionid;              /* request/response */
 407         u32                     seqid;                  /* request/response */
 408         u32                     slotid;                 /* request/response */
 409         u32                     maxslots;               /* request/response */
 410         u32                     cachethis;              /* request */
 411 #if 0
 412         u32                     target_maxslots;        /* response */
 413 #endif /* not yet */
 414         u32                     status_flags;           /* response */
 415 };
 416
 417 struct nfsd4_destroy_session {
 418         struct nfs4_sessionid   sessionid;
 419 };
 420
 421 struct nfsd4_destroy_clientid {
 422         clientid_t clientid;
 423 };
 424
 425 struct nfsd4_reclaim_complete {
 426         u32 rca_one_fs;
 427 };
 428
 429 struct nfsd4_op {
 430         int                                     opnum;
 431         __be32                                  status;
 432         union {
 433                 struct nfsd4_access             access;
 434                 struct nfsd4_close              close;
 435                 struct nfsd4_commit             commit;
 436                 struct nfsd4_create             create;
 437                 struct nfsd4_delegreturn        delegreturn;
 438                 struct nfsd4_getattr            getattr;
 439                 struct svc_fh *                 getfh;
 440                 struct nfsd4_link               link;
 441                 struct nfsd4_lock               lock;
 442                 struct nfsd4_lockt              lockt;
 443                 struct nfsd4_locku              locku;
 444                 struct nfsd4_lookup             lookup;
 445                 struct nfsd4_verify             nverify;
 446                 struct nfsd4_open               open;
 447                 struct nfsd4_open_confirm       open_confirm;
 448                 struct nfsd4_open_downgrade     open_downgrade;
 449                 struct nfsd4_putfh              putfh;
 450                 struct nfsd4_read               read;
 451                 struct nfsd4_readdir            readdir;
 452                 struct nfsd4_readlink           readlink;
 453                 struct nfsd4_remove             remove;
 454                 struct nfsd4_rename             rename;
 455                 clientid_t                      renew;
 456                 struct nfsd4_secinfo            secinfo;
 457                 struct nfsd4_setattr            setattr;
 458                 struct nfsd4_setclientid        setclientid;
 459                 struct nfsd4_setclientid_confirm setclientid_confirm;
 460                 struct nfsd4_verify             verify;
 461                 struct nfsd4_write              write;
 462                 struct nfsd4_release_lockowner  release_lockowner;
 463
 464                 /* NFSv4.1 */
 465                 struct nfsd4_exchange_id        exchange_id;
 466                 struct nfsd4_backchannel_ctl    backchannel_ctl;
 467                 struct nfsd4_bind_conn_to_session bind_conn_to_session;
 468                 struct nfsd4_create_session     create_session;
 469                 struct nfsd4_destroy_session    destroy_session;
 470                 struct nfsd4_sequence           sequence;
 471                 struct nfsd4_reclaim_complete   reclaim_complete;
 472                 struct nfsd4_test_stateid       test_stateid;
 473                 struct nfsd4_free_stateid       free_stateid;
 474         } u;
 475         struct nfs4_replay *                    replay;
 476 };
 477
 478 bool nfsd4_cache_this_op(struct nfsd4_op *);
 479
 480 struct nfsd4_compoundargs {
 481         /* scratch variables for XDR decode */
 482         __be32 *                        p;
 483         __be32 *                        end;
 484         struct page **                  pagelist;
 485         int                             pagelen;
 486         __be32                          tmp[8];
 487         __be32 *                        tmpp;
 488         struct tmpbuf {
 489                 struct tmpbuf *next;
 490                 void (*release)(const void *);
 491                 void *buf;
 492         }                               *to_free;
 493
 494         struct svc_rqst                 *rqstp;
 495
 496         u32                             taglen;
 497         char *                          tag;
 498         u32                             minorversion;
 499         u32                             opcnt;
 500         struct nfsd4_op                 *ops;
 501         struct nfsd4_op                 iops[8];
 502         int                             cachetype;
 503 };
 504
 505 struct nfsd4_compoundres {
 506         /* scratch variables for XDR encode */
 507         __be32 *                        p;
 508         __be32 *                        end;
 509         struct xdr_buf *                xbuf;
 510         struct svc_rqst *               rqstp;
 511
 512         u32                             taglen;
 513         char *                          tag;
 514         u32                             opcnt;
 515         __be32 *                        tagp; /* tag, opcount encode location */
 516         struct nfsd4_compound_state     cstate;
 517 };
 518
 519 static inline bool nfsd4_is_solo_sequence(struct nfsd4_compoundres *resp)
 520 {
 521         struct nfsd4_compoundargs *args = resp->rqstp->rq_argp;
 522         return resp->opcnt == 1 && args->ops[0].opnum == OP_SEQUENCE;
 523 }
 524
 525 static inline bool nfsd4_not_cached(struct nfsd4_compoundres *resp)
 526 {
 527         return !(resp->cstate.slot->sl_flags & NFSD4_SLOT_CACHETHIS)
 528                 || nfsd4_is_solo_sequence(resp);
 529 }
 530
 531 static inline bool nfsd4_last_compound_op(struct svc_rqst *rqstp)
 532 {
 533         struct nfsd4_compoundres *resp = rqstp->rq_resp;
 534         struct nfsd4_compoundargs *argp = rqstp->rq_argp;
 535
 536         return argp->opcnt == resp->opcnt;
 537 }
 538
 539 #define NFS4_SVC_XDRSIZE                sizeof(struct nfsd4_compoundargs)
 540
 541 static inline void
 542 set_change_info(struct nfsd4_change_info *cinfo, struct svc_fh *fhp)
 543 {
 544         BUG_ON(!fhp->fh_pre_saved);
 545         cinfo->atomic = fhp->fh_post_saved;
 546         cinfo->change_supported = IS_I_VERSION(fhp->fh_dentry->d_inode);
 547
 548         cinfo->before_change = fhp->fh_pre_change;
 549         cinfo->after_change = fhp->fh_post_change;
 550         cinfo->before_ctime_sec = fhp->fh_pre_ctime.tv_sec;
 551         cinfo->before_ctime_nsec = fhp->fh_pre_ctime.tv_nsec;
 552         cinfo->after_ctime_sec = fhp->fh_post_attr.ctime.tv_sec;
 553         cinfo->after_ctime_nsec = fhp->fh_post_attr.ctime.tv_nsec;
 554
 555 }
 556
 557 int nfs4svc_encode_voidres(struct svc_rqst *, __be32 *, void *);
 558 int nfs4svc_decode_compoundargs(struct svc_rqst *, __be32 *,
 559                 struct nfsd4_compoundargs *);
 560 int nfs4svc_encode_compoundres(struct svc_rqst *, __be32 *,
 561                 struct nfsd4_compoundres *);
 562 __be32 nfsd4_check_resp_size(struct nfsd4_compoundres *, u32);
 563 void nfsd4_encode_operation(struct nfsd4_compoundres *, struct nfsd4_op *);
 564 void nfsd4_encode_replay(struct nfsd4_compoundres *resp, struct nfsd4_op *op);
 565 __be32 nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
 566                        struct dentry *dentry, __be32 **buffer, int countp,
 567                        u32 *bmval, struct svc_rqst *, int ignore_crossmnt);
 568 extern __be32 nfsd4_setclientid(struct svc_rqst *rqstp,
 569                 struct nfsd4_compound_state *,
 570                 struct nfsd4_setclientid *setclid);
 571 extern __be32 nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
 572                 struct nfsd4_compound_state *,
 573                 struct nfsd4_setclientid_confirm *setclientid_confirm);
 574 extern void nfsd4_store_cache_entry(struct nfsd4_compoundres *resp);
 575 extern __be32 nfsd4_replay_cache_entry(struct nfsd4_compoundres *resp,
 576                 struct nfsd4_sequence *seq);
 577 extern __be32 nfsd4_exchange_id(struct svc_rqst *rqstp,
 578                 struct nfsd4_compound_state *, struct nfsd4_exchange_id *);
 579 extern __be32 nfsd4_backchannel_ctl(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_backchannel_ctl *);
 580 extern __be32 nfsd4_bind_conn_to_session(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_bind_conn_to_session *);
 581 extern __be32 nfsd4_create_session(struct svc_rqst *,
 582                 struct nfsd4_compound_state *,
 583                 struct nfsd4_create_session *);
 584 extern __be32 nfsd4_sequence(struct svc_rqst *,
 585                 struct nfsd4_compound_state *,
 586                 struct nfsd4_sequence *);
 587 extern __be32 nfsd4_destroy_session(struct svc_rqst *,
 588                 struct nfsd4_compound_state *,
 589                 struct nfsd4_destroy_session *);
 590 extern __be32 nfsd4_destroy_clientid(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_destroy_clientid *);
 591 __be32 nfsd4_reclaim_complete(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_reclaim_complete *);
 592 extern __be32 nfsd4_process_open1(struct nfsd4_compound_state *,
 593                 struct nfsd4_open *open, struct nfsd_net *nn);
 594 extern __be32 nfsd4_process_open2(struct svc_rqst *rqstp,
 595                 struct svc_fh *current_fh, struct nfsd4_open *open);
 596 extern void nfsd4_cleanup_open_state(struct nfsd4_open *open, __be32 status);
 597 extern __be32 nfsd4_open_confirm(struct svc_rqst *rqstp,
 598                 struct nfsd4_compound_state *, struct nfsd4_open_confirm *oc);
 599 extern __be32 nfsd4_close(struct svc_rqst *rqstp,
 600                 struct nfsd4_compound_state *,
 601                 struct nfsd4_close *close);
 602 extern __be32 nfsd4_open_downgrade(struct svc_rqst *rqstp,
 603                 struct nfsd4_compound_state *,
 604                 struct nfsd4_open_downgrade *od);
 605 extern __be32 nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
 606                 struct nfsd4_lock *lock);
 607 extern __be32 nfsd4_lockt(struct svc_rqst *rqstp,
 608                 struct nfsd4_compound_state *,
 609                 struct nfsd4_lockt *lockt);
 610 extern __be32 nfsd4_locku(struct svc_rqst *rqstp,
 611                 struct nfsd4_compound_state *,
 612                 struct nfsd4_locku *locku);
 613 extern __be32
 614 nfsd4_release_lockowner(struct svc_rqst *rqstp,
 615                 struct nfsd4_compound_state *,
 616                 struct nfsd4_release_lockowner *rlockowner);
 617 extern int nfsd4_release_compoundargs(void *rq, __be32 *p, void *resp);
 618 extern __be32 nfsd4_delegreturn(struct svc_rqst *rqstp,
 619                 struct nfsd4_compound_state *, struct nfsd4_delegreturn *dr);
 620 extern __be32 nfsd4_renew(struct svc_rqst *rqstp,
 621                           struct nfsd4_compound_state *, clientid_t *clid);
 622 extern __be32 nfsd4_test_stateid(struct svc_rqst *rqstp,
 623                 struct nfsd4_compound_state *, struct nfsd4_test_stateid *test_stateid);
 624 extern __be32 nfsd4_free_stateid(struct svc_rqst *rqstp,
 625                 struct nfsd4_compound_state *, struct nfsd4_free_stateid *free_stateid);
 626 #endif
 627
 628 /*
 629  * Local variables:
 630  *  c-basic-offset: 8
 631  * End:
 632  */