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[/] [test_project/] [trunk/] [linux_sd_driver/] [include/] [linux/] [nfsd/] [xdr4.h] - Blame information for rev 62

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1 62 marcus.erl
/*
2
 *  include/linux/nfsd/xdr4.h
3
 *
4
 *  Server-side types for NFSv4.
5
 *
6
 *  Copyright (c) 2002 The Regents of the University of Michigan.
7
 *  All rights reserved.
8
 *
9
 *  Kendrick Smith <kmsmith@umich.edu>
10
 *  Andy Adamson   <andros@umich.edu>
11
 *
12
 *  Redistribution and use in source and binary forms, with or without
13
 *  modification, are permitted provided that the following conditions
14
 *  are met:
15
 *
16
 *  1. Redistributions of source code must retain the above copyright
17
 *     notice, this list of conditions and the following disclaimer.
18
 *  2. Redistributions in binary form must reproduce the above copyright
19
 *     notice, this list of conditions and the following disclaimer in the
20
 *     documentation and/or other materials provided with the distribution.
21
 *  3. Neither the name of the University nor the names of its
22
 *     contributors may be used to endorse or promote products derived
23
 *     from this software without specific prior written permission.
24
 *
25
 *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
26
 *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
27
 *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
28
 *  DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29
 *  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30
 *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31
 *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
32
 *  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
33
 *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
34
 *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
35
 *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36
 *
37
 */
38
 
39
#ifndef _LINUX_NFSD_XDR4_H
40
#define _LINUX_NFSD_XDR4_H
41
 
42
#include <linux/nfs4.h>
43
 
44
#define NFSD4_MAX_TAGLEN        128
45
#define XDR_LEN(n)                     (((n) + 3) & ~3)
46
 
47
struct nfsd4_compound_state {
48
        struct svc_fh current_fh;
49
        struct svc_fh save_fh;
50
        struct nfs4_stateowner *replay_owner;
51
};
52
 
53
struct nfsd4_change_info {
54
        u32             atomic;
55
        u32             before_ctime_sec;
56
        u32             before_ctime_nsec;
57
        u32             after_ctime_sec;
58
        u32             after_ctime_nsec;
59
};
60
 
61
struct nfsd4_access {
62
        u32             ac_req_access;      /* request */
63
        u32             ac_supported;       /* response */
64
        u32             ac_resp_access;     /* response */
65
};
66
 
67
struct nfsd4_close {
68
        u32             cl_seqid;           /* request */
69
        stateid_t       cl_stateid;         /* request+response */
70
        struct nfs4_stateowner * cl_stateowner; /* response */
71
};
72
 
73
struct nfsd4_commit {
74
        u64             co_offset;          /* request */
75
        u32             co_count;           /* request */
76
        nfs4_verifier   co_verf;            /* response */
77
};
78
 
79
struct nfsd4_create {
80
        u32             cr_namelen;         /* request */
81
        char *          cr_name;            /* request */
82
        u32             cr_type;            /* request */
83
        union {                             /* request */
84
                struct {
85
                        u32 namelen;
86
                        char *name;
87
                } link;   /* NF4LNK */
88
                struct {
89
                        u32 specdata1;
90
                        u32 specdata2;
91
                } dev;    /* NF4BLK, NF4CHR */
92
        } u;
93
        u32             cr_bmval[2];        /* request */
94
        struct iattr    cr_iattr;           /* request */
95
        struct nfsd4_change_info  cr_cinfo; /* response */
96
        struct nfs4_acl *cr_acl;
97
};
98
#define cr_linklen      u.link.namelen
99
#define cr_linkname     u.link.name
100
#define cr_specdata1    u.dev.specdata1
101
#define cr_specdata2    u.dev.specdata2
102
 
103
struct nfsd4_delegreturn {
104
        stateid_t       dr_stateid;
105
};
106
 
107
struct nfsd4_getattr {
108
        u32             ga_bmval[2];        /* request */
109
        struct svc_fh   *ga_fhp;            /* response */
110
};
111
 
112
struct nfsd4_link {
113
        u32             li_namelen;         /* request */
114
        char *          li_name;            /* request */
115
        struct nfsd4_change_info  li_cinfo; /* response */
116
};
117
 
118
struct nfsd4_lock_denied {
119
        clientid_t      ld_clientid;
120
        struct nfs4_stateowner   *ld_sop;
121
        u64             ld_start;
122
        u64             ld_length;
123
        u32             ld_type;
124
};
125
 
126
struct nfsd4_lock {
127
        /* request */
128
        u32             lk_type;
129
        u32             lk_reclaim;         /* boolean */
130
        u64             lk_offset;
131
        u64             lk_length;
132
        u32             lk_is_new;
133
        union {
134
                struct {
135
                        u32             open_seqid;
136
                        stateid_t       open_stateid;
137
                        u32             lock_seqid;
138
                        clientid_t      clientid;
139
                        struct xdr_netobj owner;
140
                } new;
141
                struct {
142
                        stateid_t       lock_stateid;
143
                        u32             lock_seqid;
144
                } old;
145
        } v;
146
 
147
        /* response */
148
        union {
149
                struct {
150
                        stateid_t               stateid;
151
                } ok;
152
                struct nfsd4_lock_denied        denied;
153
        } u;
154
        /* The lk_replay_owner is the open owner in the open_to_lock_owner
155
         * case and the lock owner otherwise: */
156
        struct nfs4_stateowner *lk_replay_owner;
157
};
158
#define lk_new_open_seqid       v.new.open_seqid
159
#define lk_new_open_stateid     v.new.open_stateid
160
#define lk_new_lock_seqid       v.new.lock_seqid
161
#define lk_new_clientid         v.new.clientid
162
#define lk_new_owner            v.new.owner
163
#define lk_old_lock_stateid     v.old.lock_stateid
164
#define lk_old_lock_seqid       v.old.lock_seqid
165
 
166
#define lk_rflags       u.ok.rflags
167
#define lk_resp_stateid u.ok.stateid
168
#define lk_denied       u.denied
169
 
170
 
171
struct nfsd4_lockt {
172
        u32                             lt_type;
173
        clientid_t                      lt_clientid;
174
        struct xdr_netobj               lt_owner;
175
        u64                             lt_offset;
176
        u64                             lt_length;
177
        struct nfs4_stateowner *        lt_stateowner;
178
        struct nfsd4_lock_denied        lt_denied;
179
};
180
 
181
 
182
struct nfsd4_locku {
183
        u32             lu_type;
184
        u32             lu_seqid;
185
        stateid_t       lu_stateid;
186
        u64             lu_offset;
187
        u64             lu_length;
188
        struct nfs4_stateowner  *lu_stateowner;
189
};
190
 
191
 
192
struct nfsd4_lookup {
193
        u32             lo_len;             /* request */
194
        char *          lo_name;            /* request */
195
};
196
 
197
struct nfsd4_putfh {
198
        u32             pf_fhlen;           /* request */
199
        char            *pf_fhval;          /* request */
200
};
201
 
202
struct nfsd4_open {
203
        u32             op_claim_type;      /* request */
204
        struct xdr_netobj op_fname;         /* request - everything but CLAIM_PREV */
205
        u32             op_delegate_type;   /* request - CLAIM_PREV only */
206
        stateid_t       op_delegate_stateid; /* request - response */
207
        u32             op_create;          /* request */
208
        u32             op_createmode;      /* request */
209
        u32             op_bmval[2];        /* request */
210
        union {                             /* request */
211
                struct iattr    iattr;                      /* UNCHECKED4,GUARDED4 */
212
                nfs4_verifier   verf;                                /* EXCLUSIVE4 */
213
        } u;
214
        clientid_t      op_clientid;        /* request */
215
        struct xdr_netobj op_owner;           /* request */
216
        u32             op_seqid;           /* request */
217
        u32             op_share_access;    /* request */
218
        u32             op_share_deny;      /* request */
219
        stateid_t       op_stateid;         /* response */
220
        u32             op_recall;          /* recall */
221
        struct nfsd4_change_info  op_cinfo; /* response */
222
        u32             op_rflags;          /* response */
223
        int             op_truncate;        /* used during processing */
224
        struct nfs4_stateowner *op_stateowner; /* used during processing */
225
        struct nfs4_acl *op_acl;
226
};
227
#define op_iattr        u.iattr
228
#define op_verf         u.verf
229
 
230
struct nfsd4_open_confirm {
231
        stateid_t       oc_req_stateid          /* request */;
232
        u32             oc_seqid                /* request */;
233
        stateid_t       oc_resp_stateid         /* response */;
234
        struct nfs4_stateowner * oc_stateowner; /* response */
235
};
236
 
237
struct nfsd4_open_downgrade {
238
        stateid_t       od_stateid;
239
        u32             od_seqid;
240
        u32             od_share_access;
241
        u32             od_share_deny;
242
        struct nfs4_stateowner *od_stateowner;
243
};
244
 
245
 
246
struct nfsd4_read {
247
        stateid_t       rd_stateid;         /* request */
248
        u64             rd_offset;          /* request */
249
        u32             rd_length;          /* request */
250
        int             rd_vlen;
251
        struct file     *rd_filp;
252
 
253
        struct svc_rqst *rd_rqstp;          /* response */
254
        struct svc_fh * rd_fhp;             /* response */
255
};
256
 
257
struct nfsd4_readdir {
258
        u64             rd_cookie;          /* request */
259
        nfs4_verifier   rd_verf;            /* request */
260
        u32             rd_dircount;        /* request */
261
        u32             rd_maxcount;        /* request */
262
        u32             rd_bmval[2];        /* request */
263
        struct svc_rqst *rd_rqstp;          /* response */
264
        struct svc_fh * rd_fhp;             /* response */
265
 
266
        struct readdir_cd       common;
267
        __be32 *                buffer;
268
        int                     buflen;
269
        __be32 *                offset;
270
};
271
 
272
struct nfsd4_release_lockowner {
273
        clientid_t        rl_clientid;
274
        struct xdr_netobj rl_owner;
275
};
276
struct nfsd4_readlink {
277
        struct svc_rqst *rl_rqstp;          /* request */
278
        struct svc_fh * rl_fhp;             /* request */
279
};
280
 
281
struct nfsd4_remove {
282
        u32             rm_namelen;         /* request */
283
        char *          rm_name;            /* request */
284
        struct nfsd4_change_info  rm_cinfo; /* response */
285
};
286
 
287
struct nfsd4_rename {
288
        u32             rn_snamelen;        /* request */
289
        char *          rn_sname;           /* request */
290
        u32             rn_tnamelen;        /* request */
291
        char *          rn_tname;           /* request */
292
        struct nfsd4_change_info  rn_sinfo; /* response */
293
        struct nfsd4_change_info  rn_tinfo; /* response */
294
};
295
 
296
struct nfsd4_secinfo {
297
        u32 si_namelen;                                 /* request */
298
        char *si_name;                                  /* request */
299
        struct svc_export *si_exp;                      /* response */
300
};
301
 
302
struct nfsd4_setattr {
303
        stateid_t       sa_stateid;         /* request */
304
        u32             sa_bmval[2];        /* request */
305
        struct iattr    sa_iattr;           /* request */
306
        struct nfs4_acl *sa_acl;
307
};
308
 
309
struct nfsd4_setclientid {
310
        nfs4_verifier   se_verf;            /* request */
311
        u32             se_namelen;         /* request */
312
        char *          se_name;            /* request */
313
        u32             se_callback_prog;   /* request */
314
        u32             se_callback_netid_len;  /* request */
315
        char *          se_callback_netid_val;  /* request */
316
        u32             se_callback_addr_len;   /* request */
317
        char *          se_callback_addr_val;   /* request */
318
        u32             se_callback_ident;  /* request */
319
        clientid_t      se_clientid;        /* response */
320
        nfs4_verifier   se_confirm;         /* response */
321
};
322
 
323
struct nfsd4_setclientid_confirm {
324
        clientid_t      sc_clientid;
325
        nfs4_verifier   sc_confirm;
326
};
327
 
328
/* also used for NVERIFY */
329
struct nfsd4_verify {
330
        u32             ve_bmval[2];        /* request */
331
        u32             ve_attrlen;         /* request */
332
        char *          ve_attrval;         /* request */
333
};
334
 
335
struct nfsd4_write {
336
        stateid_t       wr_stateid;         /* request */
337
        u64             wr_offset;          /* request */
338
        u32             wr_stable_how;      /* request */
339
        u32             wr_buflen;          /* request */
340
        int             wr_vlen;
341
 
342
        u32             wr_bytes_written;   /* response */
343
        u32             wr_how_written;     /* response */
344
        nfs4_verifier   wr_verifier;        /* response */
345
};
346
 
347
struct nfsd4_op {
348
        int                                     opnum;
349
        __be32                                  status;
350
        union {
351
                struct nfsd4_access             access;
352
                struct nfsd4_close              close;
353
                struct nfsd4_commit             commit;
354
                struct nfsd4_create             create;
355
                struct nfsd4_delegreturn        delegreturn;
356
                struct nfsd4_getattr            getattr;
357
                struct svc_fh *                 getfh;
358
                struct nfsd4_link               link;
359
                struct nfsd4_lock               lock;
360
                struct nfsd4_lockt              lockt;
361
                struct nfsd4_locku              locku;
362
                struct nfsd4_lookup             lookup;
363
                struct nfsd4_verify             nverify;
364
                struct nfsd4_open               open;
365
                struct nfsd4_open_confirm       open_confirm;
366
                struct nfsd4_open_downgrade     open_downgrade;
367
                struct nfsd4_putfh              putfh;
368
                struct nfsd4_read               read;
369
                struct nfsd4_readdir            readdir;
370
                struct nfsd4_readlink           readlink;
371
                struct nfsd4_remove             remove;
372
                struct nfsd4_rename             rename;
373
                clientid_t                      renew;
374
                struct nfsd4_secinfo            secinfo;
375
                struct nfsd4_setattr            setattr;
376
                struct nfsd4_setclientid        setclientid;
377
                struct nfsd4_setclientid_confirm setclientid_confirm;
378
                struct nfsd4_verify             verify;
379
                struct nfsd4_write              write;
380
                struct nfsd4_release_lockowner  release_lockowner;
381
        } u;
382
        struct nfs4_replay *                    replay;
383
};
384
 
385
struct nfsd4_compoundargs {
386
        /* scratch variables for XDR decode */
387
        __be32 *                        p;
388
        __be32 *                        end;
389
        struct page **                  pagelist;
390
        int                             pagelen;
391
        __be32                          tmp[8];
392
        __be32 *                        tmpp;
393
        struct tmpbuf {
394
                struct tmpbuf *next;
395
                void (*release)(const void *);
396
                void *buf;
397
        }                               *to_free;
398
 
399
        struct svc_rqst                 *rqstp;
400
 
401
        u32                             taglen;
402
        char *                          tag;
403
        u32                             minorversion;
404
        u32                             opcnt;
405
        struct nfsd4_op                 *ops;
406
        struct nfsd4_op                 iops[8];
407
};
408
 
409
struct nfsd4_compoundres {
410
        /* scratch variables for XDR encode */
411
        __be32 *                        p;
412
        __be32 *                        end;
413
        struct xdr_buf *                xbuf;
414
        struct svc_rqst *               rqstp;
415
 
416
        u32                             taglen;
417
        char *                          tag;
418
        u32                             opcnt;
419
        __be32 *                        tagp; /* where to encode tag and  opcount */
420
};
421
 
422
#define NFS4_SVC_XDRSIZE                sizeof(struct nfsd4_compoundargs)
423
 
424
static inline void
425
set_change_info(struct nfsd4_change_info *cinfo, struct svc_fh *fhp)
426
{
427
        BUG_ON(!fhp->fh_pre_saved || !fhp->fh_post_saved);
428
        cinfo->atomic = 1;
429
        cinfo->before_ctime_sec = fhp->fh_pre_ctime.tv_sec;
430
        cinfo->before_ctime_nsec = fhp->fh_pre_ctime.tv_nsec;
431
        cinfo->after_ctime_sec = fhp->fh_post_attr.ctime.tv_sec;
432
        cinfo->after_ctime_nsec = fhp->fh_post_attr.ctime.tv_nsec;
433
}
434
 
435
int nfs4svc_encode_voidres(struct svc_rqst *, __be32 *, void *);
436
int nfs4svc_decode_compoundargs(struct svc_rqst *, __be32 *,
437
                struct nfsd4_compoundargs *);
438
int nfs4svc_encode_compoundres(struct svc_rqst *, __be32 *,
439
                struct nfsd4_compoundres *);
440
void nfsd4_encode_operation(struct nfsd4_compoundres *, struct nfsd4_op *);
441
void nfsd4_encode_replay(struct nfsd4_compoundres *resp, struct nfsd4_op *op);
442
__be32 nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
443
                       struct dentry *dentry, __be32 *buffer, int *countp,
444
                       u32 *bmval, struct svc_rqst *);
445
extern __be32 nfsd4_setclientid(struct svc_rqst *rqstp,
446
                struct nfsd4_compound_state *,
447
                struct nfsd4_setclientid *setclid);
448
extern __be32 nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
449
                struct nfsd4_compound_state *,
450
                struct nfsd4_setclientid_confirm *setclientid_confirm);
451
extern __be32 nfsd4_process_open1(struct nfsd4_open *open);
452
extern __be32 nfsd4_process_open2(struct svc_rqst *rqstp,
453
                struct svc_fh *current_fh, struct nfsd4_open *open);
454
extern __be32 nfsd4_open_confirm(struct svc_rqst *rqstp,
455
                struct nfsd4_compound_state *, struct nfsd4_open_confirm *oc);
456
extern __be32 nfsd4_close(struct svc_rqst *rqstp,
457
                struct nfsd4_compound_state *,
458
                struct nfsd4_close *close);
459
extern __be32 nfsd4_open_downgrade(struct svc_rqst *rqstp,
460
                struct nfsd4_compound_state *,
461
                struct nfsd4_open_downgrade *od);
462
extern __be32 nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
463
                struct nfsd4_lock *lock);
464
extern __be32 nfsd4_lockt(struct svc_rqst *rqstp,
465
                struct nfsd4_compound_state *,
466
                struct nfsd4_lockt *lockt);
467
extern __be32 nfsd4_locku(struct svc_rqst *rqstp,
468
                struct nfsd4_compound_state *,
469
                struct nfsd4_locku *locku);
470
extern __be32
471
nfsd4_release_lockowner(struct svc_rqst *rqstp,
472
                struct nfsd4_compound_state *,
473
                struct nfsd4_release_lockowner *rlockowner);
474
extern void nfsd4_release_compoundargs(struct nfsd4_compoundargs *);
475
extern __be32 nfsd4_delegreturn(struct svc_rqst *rqstp,
476
                struct nfsd4_compound_state *, struct nfsd4_delegreturn *dr);
477
extern __be32 nfsd4_renew(struct svc_rqst *rqstp,
478
                          struct nfsd4_compound_state *, clientid_t *clid);
479
#endif
480
 
481
/*
482
 * Local variables:
483
 *  c-basic-offset: 8
484
 * End:
485
 */

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