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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [libnetworking/] [nfs/] [nfs.h] - Blame information for rev 173

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/*
2
 * Copyright (c) 1989, 1993
3
 *      The Regents of the University of California.  All rights reserved.
4
 *
5
 * This code is derived from software contributed to Berkeley by
6
 * Rick Macklem at The University of Guelph.
7
 *
8
 * Redistribution and use in source and binary forms, with or without
9
 * modification, are permitted provided that the following conditions
10
 * are met:
11
 * 1. Redistributions of source code must retain the above copyright
12
 *    notice, this list of conditions and the following disclaimer.
13
 * 2. Redistributions in binary form must reproduce the above copyright
14
 *    notice, this list of conditions and the following disclaimer in the
15
 *    documentation and/or other materials provided with the distribution.
16
 * 3. All advertising materials mentioning features or use of this software
17
 *    must display the following acknowledgement:
18
 *      This product includes software developed by the University of
19
 *      California, Berkeley and its contributors.
20
 * 4. Neither the name of the University nor the names of its contributors
21
 *    may be used to endorse or promote products derived from this software
22
 *    without specific prior written permission.
23
 *
24
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34
 * SUCH DAMAGE.
35
 *
36
 *      @(#)nfs.h       8.1 (Berkeley) 6/10/93
37
 * $Id: nfs.h,v 1.2 2001-09-27 12:01:56 chris Exp $
38
 */
39
 
40
#ifndef _NFS_NFS_H_
41
#define _NFS_NFS_H_
42
 
43
#include <nfs/rpcv2.h>
44
 
45
/*
46
 * Tunable constants for nfs
47
 */
48
 
49
#define NFS_MAXIOVEC    34
50
#define NFS_TICKINTVL   5               /* Desired time for a tick (msec) */
51
#define NFS_HZ          (hz / nfs_ticks) /* Ticks/sec */
52
#define NFS_TIMEO       (1 * NFS_HZ)    /* Default timeout = 1 second */
53
#define NFS_MINTIMEO    (1 * NFS_HZ)    /* Min timeout to use */
54
#define NFS_MAXTIMEO    (60 * NFS_HZ)   /* Max timeout to backoff to */
55
#define NFS_MINIDEMTIMEO (5 * NFS_HZ)   /* Min timeout for non-idempotent ops*/
56
#define NFS_MAXREXMIT   100             /* Stop counting after this many */
57
#define NFS_MAXWINDOW   1024            /* Max number of outstanding requests */
58
#define NFS_RETRANS     10              /* Num of retrans for soft mounts */
59
#define NFS_MAXGRPS     16              /* Max. size of groups list */
60
#ifndef NFS_MINATTRTIMO
61
#define NFS_MINATTRTIMO 5               /* Attribute cache timeout in sec */
62
#endif
63
#ifndef NFS_MAXATTRTIMO
64
#define NFS_MAXATTRTIMO 60
65
#endif
66
#define NFS_WSIZE       8192            /* Def. write data size <= 8192 */
67
#define NFS_RSIZE       8192            /* Def. read data size <= 8192 */
68
#define NFS_READDIRSIZE 8192            /* Def. readdir size */
69
#define NFS_DEFRAHEAD   1               /* Def. read ahead # blocks */
70
#define NFS_MAXRAHEAD   4               /* Max. read ahead # blocks */
71
#define NFS_MAXUIDHASH  64              /* Max. # of hashed uid entries/mp */
72
#define NFS_MAXASYNCDAEMON      20      /* Max. number async_daemons runnable */
73
#define NFS_MAXGATHERDELAY      100     /* Max. write gather delay (msec) */
74
#ifndef NFS_GATHERDELAY
75
#define NFS_GATHERDELAY         10      /* Default write gather delay (msec) */
76
#endif
77
#define NFS_DIRBLKSIZ   4096            /* Must be a multiple of DIRBLKSIZ */
78
 
79
/*
80
 * Oddballs
81
 */
82
#define NMOD(a)         ((a) % nfs_asyncdaemons)
83
#define NFS_CMPFH(n, f, s) \
84
        ((n)->n_fhsize == (s) && !bcmp((caddr_t)(n)->n_fhp, (caddr_t)(f), (s)))
85
#define NFS_ISV3(v)     (VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV3)
86
#define NFS_SRVMAXDATA(n) \
87
                (((n)->nd_flag & ND_NFSV3) ? (((n)->nd_nam2) ? \
88
                 NFS_MAXDGRAMDATA : NFS_MAXDATA) : NFS_V2MAXDATA)
89
 
90
/*
91
 * XXX
92
 * sys/buf.h should be edited to change B_APPENDWRITE --> B_NEEDCOMMIT, but
93
 * until then...
94
 * Same goes for sys/malloc.h, which needs M_NFSDIROFF,
95
 * M_NFSRVDESC and M_NFSBIGFH added.
96
 * The VA_EXCLUSIVE flag should be added for va_vaflags and set for an
97
 * exclusive create.
98
 * The B_INVAFTERWRITE flag should be set to whatever is required by the
99
 * buffer cache code to say "Invalidate the block after it is written back".
100
 */
101
#ifndef B_NEEDCOMMIT
102
#define B_NEEDCOMMIT    B_APPENDWRITE
103
#endif
104
#ifndef M_NFSRVDESC
105
#define M_NFSRVDESC     M_TEMP
106
#endif
107
#ifndef M_NFSDIROFF
108
#define M_NFSDIROFF     M_TEMP
109
#endif
110
#ifndef M_NFSBIGFH
111
#define M_NFSBIGFH      M_TEMP
112
#endif
113
#ifndef VA_EXCLUSIVE
114
#define VA_EXCLUSIVE    0
115
#endif
116
#ifdef __FreeBSD__
117
#define B_INVAFTERWRITE B_NOCACHE
118
#else
119
#define B_INVAFTERWRITE B_INVAL
120
#endif
121
 
122
/*
123
 * These ifdefs try to handle the differences between the various 4.4BSD-Lite
124
 * based vfs interfaces.
125
 * btw: NetBSD-current does have a VOP_LEASDE(), but I don't know how to
126
 * differentiate between NetBSD-1.0 and NetBSD-current, so..
127
 * I also don't know about BSDi's 2.0 release.
128
 */
129
#if !defined(HAS_VOPLEASE) && !defined(__FreeBSD__) && !defined(__NetBSD__)
130
#define HAS_VOPLEASE    1
131
#endif
132
#if !defined(HAS_VOPREVOKE) && !defined(__FreeBSD__) && !defined(__NetBSD__)
133
#define HAS_VOPREVOKE   1
134
#endif
135
 
136
/*
137
 * The IO_METASYNC flag should be implemented for local file systems.
138
 * (Until then, it is nothin at all.)
139
 */
140
#ifndef IO_METASYNC
141
#define IO_METASYNC     0
142
#endif
143
 
144
/*
145
 * Set the attribute timeout based on how recently the file has been modified.
146
 */
147
#define NFS_ATTRTIMEO(np) \
148
        ((((np)->n_flag & NMODIFIED) || \
149
         (time.tv_sec - (np)->n_mtime) / 10 < NFS_MINATTRTIMO) ? NFS_MINATTRTIMO : \
150
         ((time.tv_sec - (np)->n_mtime) / 10 > NFS_MAXATTRTIMO ? NFS_MAXATTRTIMO : \
151
          (time.tv_sec - (np)->n_mtime) / 10))
152
 
153
/*
154
 * Expected allocation sizes for major data structures. If the actual size
155
 * of the structure exceeds these sizes, then malloc() will be allocating
156
 * almost twice the memory required. This is used in nfs_init() to warn
157
 * the sysadmin that the size of a structure should be reduced.
158
 * (These sizes are always a power of 2. If the kernel malloc() changes
159
 *  to one that does not allocate space in powers of 2 size, then this all
160
 *  becomes bunk!)
161
 */
162
#define NFS_NODEALLOC   256
163
#define NFS_MNTALLOC    512
164
#define NFS_SVCALLOC    256
165
#define NFS_UIDALLOC    128
166
 
167
/*
168
 * Structures for the nfssvc(2) syscall. Not that anyone but nfsd and mount_nfs
169
 * should ever try and use it.
170
 */
171
struct nfsd_args {
172
        int     sock;           /* Socket to serve */
173
        caddr_t name;           /* Client address for connection based sockets */
174
        int     namelen;        /* Length of name */
175
};
176
 
177
struct nfsd_srvargs {
178
        struct nfsd     *nsd_nfsd;      /* Pointer to in kernel nfsd struct */
179
        uid_t           nsd_uid;        /* Effective uid mapped to cred */
180
        u_long          nsd_haddr;      /* Ip address of client */
181
        struct ucred    nsd_cr;         /* Cred. uid maps to */
182
        int             nsd_authlen;    /* Length of auth string (ret) */
183
        u_char          *nsd_authstr;   /* Auth string (ret) */
184
        int             nsd_verflen;    /* and the verfier */
185
        u_char          *nsd_verfstr;
186
        struct timeval  nsd_timestamp;  /* timestamp from verifier */
187
        u_long          nsd_ttl;        /* credential ttl (sec) */
188
        NFSKERBKEY_T    nsd_key;        /* Session key */
189
};
190
 
191
struct nfsd_cargs {
192
        char            *ncd_dirp;      /* Mount dir path */
193
        uid_t           ncd_authuid;    /* Effective uid */
194
        int             ncd_authtype;   /* Type of authenticator */
195
        int             ncd_authlen;    /* Length of authenticator string */
196
        u_char          *ncd_authstr;   /* Authenticator string */
197
        int             ncd_verflen;    /* and the verifier */
198
        u_char          *ncd_verfstr;
199
        NFSKERBKEY_T    ncd_key;        /* Session key */
200
};
201
 
202
/*
203
 * Stats structure
204
 */
205
struct nfsstats {
206
        int     attrcache_hits;
207
        int     attrcache_misses;
208
        int     lookupcache_hits;
209
        int     lookupcache_misses;
210
        int     direofcache_hits;
211
        int     direofcache_misses;
212
        int     biocache_reads;
213
        int     read_bios;
214
        int     read_physios;
215
        int     biocache_writes;
216
        int     write_bios;
217
        int     write_physios;
218
        int     biocache_readlinks;
219
        int     readlink_bios;
220
        int     biocache_readdirs;
221
        int     readdir_bios;
222
        int     rpccnt[NFS_NPROCS];
223
        int     rpcretries;
224
        int     srvrpccnt[NFS_NPROCS];
225
        int     srvrpc_errs;
226
        int     srv_errs;
227
        int     rpcrequests;
228
        int     rpctimeouts;
229
        int     rpcunexpected;
230
        int     rpcinvalid;
231
        int     srvcache_inproghits;
232
        int     srvcache_idemdonehits;
233
        int     srvcache_nonidemdonehits;
234
        int     srvcache_misses;
235
        int     srvnqnfs_leases;
236
        int     srvnqnfs_maxleases;
237
        int     srvnqnfs_getleases;
238
        int     srvvop_writes;
239
};
240
 
241
/*
242
 * Flags for nfssvc() system call.
243
 */
244
#define NFSSVC_BIOD     0x002
245
#define NFSSVC_NFSD     0x004
246
#define NFSSVC_ADDSOCK  0x008
247
#define NFSSVC_AUTHIN   0x010
248
#define NFSSVC_GOTAUTH  0x040
249
#define NFSSVC_AUTHINFAIL 0x080
250
#define NFSSVC_MNTD     0x100
251
 
252
/*
253
 * fs.nfs sysctl(3) identifiers
254
 */
255
#define NFS_NFSSTATS    1               /* struct: struct nfsstats */
256
#define NFS_NFSPRIVPORT 2               /* int: prohibit nfs to resvports */
257
 
258
#define FS_NFS_NAMES { \
259
                       { 0, 0 }, \
260
                       { "nfsstats", CTLTYPE_STRUCT }, \
261
                       { "nfsprivport", CTLTYPE_INT }, \
262
}
263
 
264
/*
265
 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts.
266
 * What should be in this set is open to debate, but I believe that since
267
 * I/O system calls on ufs are never interrupted by signals the set should
268
 * be minimal. My reasoning is that many current programs that use signals
269
 * such as SIGALRM will not expect file I/O system calls to be interrupted
270
 * by them and break.
271
 */
272
#if defined(KERNEL) || defined(_KERNEL)
273
 
274
struct uio; struct buf; struct vattr; struct nameidata; /* XXX */
275
 
276
#define NFSINT_SIGMASK  (sigmask(SIGINT)|sigmask(SIGTERM)|sigmask(SIGKILL)| \
277
                         sigmask(SIGHUP)|sigmask(SIGQUIT))
278
 
279
/*
280
 * Socket errors ignored for connectionless sockets??
281
 * For now, ignore them all
282
 */
283
#define NFSIGNORE_SOERROR(s, e) \
284
                ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \
285
                ((s) & PR_CONNREQUIRED) == 0)
286
 
287
/*
288
 * Nfs outstanding request list element
289
 */
290
struct nfsreq {
291
        TAILQ_ENTRY(nfsreq) r_chain;
292
        struct mbuf     *r_mreq;
293
        struct mbuf     *r_mrep;
294
        struct mbuf     *r_md;
295
        caddr_t         r_dpos;
296
        struct nfsmount *r_nmp;
297
        struct vnode    *r_vp;
298
        u_long          r_xid;
299
        int             r_flags;        /* flags on request, see below */
300
        int             r_retry;        /* max retransmission count */
301
        int             r_rexmit;       /* current retrans count */
302
        int             r_timer;        /* tick counter on reply */
303
        int             r_procnum;      /* NFS procedure number */
304
        int             r_rtt;          /* RTT for rpc */
305
        struct proc     *r_procp;       /* Proc that did I/O system call */
306
};
307
 
308
/*
309
 * Queue head for nfsreq's
310
 */
311
extern TAILQ_HEAD(nfs_reqq, nfsreq) nfs_reqq;
312
 
313
/* Flag values for r_flags */
314
#define R_TIMING        0x01            /* timing request (in mntp) */
315
#define R_SENT          0x02            /* request has been sent */
316
#define R_SOFTTERM      0x04            /* soft mnt, too many retries */
317
#define R_INTR          0x08            /* intr mnt, signal pending */
318
#define R_SOCKERR       0x10            /* Fatal error on socket */
319
#define R_TPRINTFMSG    0x20            /* Did a tprintf msg. */
320
#define R_MUSTRESEND    0x40            /* Must resend request */
321
#define R_GETONEREP     0x80            /* Probe for one reply only */
322
 
323
/*
324
 * A list of nfssvc_sock structures is maintained with all the sockets
325
 * that require service by the nfsd.
326
 * The nfsuid structs hang off of the nfssvc_sock structs in both lru
327
 * and uid hash lists.
328
 */
329
#ifndef NFS_UIDHASHSIZ
330
#define NFS_UIDHASHSIZ  29      /* Tune the size of nfssvc_sock with this */
331
#endif
332
#define NUIDHASH(sock, uid) \
333
        (&(sock)->ns_uidhashtbl[(uid) % NFS_UIDHASHSIZ])
334
#ifndef NFS_WDELAYHASHSIZ
335
#define NFS_WDELAYHASHSIZ 16    /* and with this */
336
#endif
337
#define NWDELAYHASH(sock, f) \
338
        (&(sock)->ns_wdelayhashtbl[(*((u_long *)(f))) % NFS_WDELAYHASHSIZ])
339
#ifndef NFS_MUIDHASHSIZ
340
#define NFS_MUIDHASHSIZ 63      /* Tune the size of nfsmount with this */
341
#endif
342
#define NMUIDHASH(nmp, uid) \
343
        (&(nmp)->nm_uidhashtbl[(uid) % NFS_MUIDHASHSIZ])
344
#define NFSNOHASH(fhsum) \
345
        (&nfsnodehashtbl[(fhsum) & nfsnodehash])
346
 
347
/*
348
 * Network address hash list element
349
 */
350
union nethostaddr {
351
        u_long had_inetaddr;
352
        struct mbuf *had_nam;
353
};
354
 
355
struct nfsuid {
356
        TAILQ_ENTRY(nfsuid) nu_lru;     /* LRU chain */
357
        LIST_ENTRY(nfsuid) nu_hash;     /* Hash list */
358
        int             nu_flag;        /* Flags */
359
        union nethostaddr nu_haddr;     /* Host addr. for dgram sockets */
360
        struct ucred    nu_cr;          /* Cred uid mapped to */
361
        int             nu_expire;      /* Expiry time (sec) */
362
        struct timeval  nu_timestamp;   /* Kerb. timestamp */
363
        u_long          nu_nickname;    /* Nickname on server */
364
        NFSKERBKEY_T    nu_key;         /* and session key */
365
};
366
 
367
#define nu_inetaddr     nu_haddr.had_inetaddr
368
#define nu_nam          nu_haddr.had_nam
369
/* Bits for nu_flag */
370
#define NU_INETADDR     0x1
371
#define NU_NAM          0x2
372
#define NU_NETFAM(u)    (((u)->nu_flag & NU_INETADDR) ? AF_INET : AF_ISO)
373
 
374
struct nfssvc_sock {
375
        TAILQ_ENTRY(nfssvc_sock) ns_chain;      /* List of all nfssvc_sock's */
376
        TAILQ_HEAD(, nfsuid) ns_uidlruhead;
377
        struct file     *ns_fp;
378
        struct socket   *ns_so;
379
        struct mbuf     *ns_nam;
380
        struct mbuf     *ns_raw;
381
        struct mbuf     *ns_rawend;
382
        struct mbuf     *ns_rec;
383
        struct mbuf     *ns_recend;
384
        struct mbuf     *ns_frag;
385
        int             ns_flag;
386
        int             ns_solock;
387
        int             ns_cc;
388
        int             ns_reclen;
389
        int             ns_numuids;
390
        u_long          ns_sref;
391
        LIST_HEAD(, nfsrv_descript) ns_tq;      /* Write gather lists */
392
        LIST_HEAD(, nfsuid) ns_uidhashtbl[NFS_UIDHASHSIZ];
393
        LIST_HEAD(nfsrvw_delayhash, nfsrv_descript) ns_wdelayhashtbl[NFS_WDELAYHASHSIZ];
394
};
395
 
396
/* Bits for "ns_flag" */
397
#define SLP_VALID       0x01
398
#define SLP_DOREC       0x02
399
#define SLP_NEEDQ       0x04
400
#define SLP_DISCONN     0x08
401
#define SLP_GETSTREAM   0x10
402
#define SLP_LASTFRAG    0x20
403
#define SLP_ALLFLAGS    0xff
404
 
405
extern TAILQ_HEAD(nfssvc_sockhead, nfssvc_sock) nfssvc_sockhead;
406
extern int nfssvc_sockhead_flag;
407
#define SLP_INIT        0x01
408
#define SLP_WANTINIT    0x02
409
 
410
/*
411
 * One of these structures is allocated for each nfsd.
412
 */
413
struct nfsd {
414
        TAILQ_ENTRY(nfsd) nfsd_chain;   /* List of all nfsd's */
415
        int             nfsd_flag;      /* NFSD_ flags */
416
        struct nfssvc_sock *nfsd_slp;   /* Current socket */
417
        int             nfsd_authlen;   /* Authenticator len */
418
        u_char          nfsd_authstr[RPCAUTH_MAXSIZ]; /* Authenticator data */
419
        int             nfsd_verflen;   /* and the Verifier */
420
        u_char          nfsd_verfstr[RPCVERF_MAXSIZ];
421
        struct proc     *nfsd_procp;    /* Proc ptr */
422
        struct nfsrv_descript *nfsd_nd; /* Associated nfsrv_descript */
423
};
424
 
425
/* Bits for "nfsd_flag" */
426
#define NFSD_WAITING    0x01
427
#define NFSD_REQINPROG  0x02
428
#define NFSD_NEEDAUTH   0x04
429
#define NFSD_AUTHFAIL   0x08
430
 
431
/*
432
 * This structure is used by the server for describing each request.
433
 * Some fields are used only when write request gathering is performed.
434
 */
435
struct nfsrv_descript {
436
        u_quad_t                nd_time;        /* Write deadline (usec) */
437
        off_t                   nd_off;         /* Start byte offset */
438
        off_t                   nd_eoff;        /* and end byte offset */
439
        LIST_ENTRY(nfsrv_descript) nd_hash;     /* Hash list */
440
        LIST_ENTRY(nfsrv_descript) nd_tq;               /* and timer list */
441
        LIST_HEAD(,nfsrv_descript) nd_coalesce; /* coalesced writes */
442
        struct mbuf             *nd_mrep;       /* Request mbuf list */
443
        struct mbuf             *nd_md;         /* Current dissect mbuf */
444
        struct mbuf             *nd_mreq;       /* Reply mbuf list */
445
        struct mbuf             *nd_nam;        /* and socket addr */
446
        struct mbuf             *nd_nam2;       /* return socket addr */
447
        caddr_t                 nd_dpos;        /* Current dissect pos */
448
        int                     nd_procnum;     /* RPC # */
449
        int                     nd_stable;      /* storage type */
450
        int                     nd_flag;        /* nd_flag */
451
        int                     nd_len;         /* Length of this write */
452
        int                     nd_repstat;     /* Reply status */
453
        u_long                  nd_retxid;      /* Reply xid */
454
        u_long                  nd_duration;    /* Lease duration */
455
        struct timeval          nd_starttime;   /* Time RPC initiated */
456
        fhandle_t               nd_fh;          /* File handle */
457
        struct ucred            nd_cr;          /* Credentials */
458
};
459
 
460
/* Bits for "nd_flag" */
461
#define ND_READ         LEASE_READ
462
#define ND_WRITE        LEASE_WRITE
463
#define ND_CHECK        0x04
464
#define ND_LEASE        (ND_READ | ND_WRITE | ND_CHECK)
465
#define ND_NFSV3        0x08
466
#define ND_NQNFS        0x10
467
#define ND_KERBNICK     0x20
468
#define ND_KERBFULL     0x40
469
#define ND_KERBAUTH     (ND_KERBNICK | ND_KERBFULL)
470
 
471
extern TAILQ_HEAD(nfsd_head, nfsd) nfsd_head;
472
extern int nfsd_head_flag;
473
#define NFSD_CHECKSLP   0x01
474
 
475
/*
476
 * These macros compare nfsrv_descript structures.
477
 */
478
#define NFSW_CONTIG(o, n) \
479
                ((o)->nd_eoff >= (n)->nd_off && \
480
                 !bcmp((caddr_t)&(o)->nd_fh, (caddr_t)&(n)->nd_fh, NFSX_V3FH))
481
 
482
#define NFSW_SAMECRED(o, n) \
483
        (((o)->nd_flag & ND_KERBAUTH) == ((n)->nd_flag & ND_KERBAUTH) && \
484
         !bcmp((caddr_t)&(o)->nd_cr, (caddr_t)&(n)->nd_cr, \
485
                sizeof (struct ucred)))
486
 
487
int     nfs_reply __P((struct nfsreq *));
488
int     nfs_getreq __P((struct nfsrv_descript *,struct nfsd *,int));
489
int     nfs_send __P((struct socket *,struct mbuf *,struct mbuf *,struct nfsreq *));
490
int     nfs_rephead __P((int,struct nfsrv_descript *,struct nfssvc_sock *,int,int,u_quad_t *,struct mbuf **,struct mbuf **,caddr_t *));
491
int     nfs_sndlock __P((int *,struct nfsreq *));
492
void    nfs_sndunlock __P((int *flagp));
493
int     nfs_disct __P((struct mbuf **,caddr_t *,int,int,caddr_t *));
494
int     nfs_vinvalbuf __P((struct vnode *,int,struct ucred *,struct proc *,int));
495
int     nfs_readrpc __P((struct vnode *,struct uio *,struct ucred *));
496
int     nfs_writerpc __P((struct vnode *,struct uio *,struct ucred *,int *,int *));
497
int     nfs_readdirrpc __P((register struct vnode *,struct uio *,struct ucred *));
498
int     nfs_asyncio __P((struct buf *,struct ucred *));
499
int     nfs_doio __P((struct buf *,struct ucred *,struct proc *));
500
int     nfs_readlinkrpc __P((struct vnode *,struct uio *,struct ucred *));
501
int     nfs_sigintr __P((struct nfsmount *,struct nfsreq *r,struct proc *));
502
int     nfs_readdirplusrpc __P((struct vnode *,register struct uio *,struct ucred *));
503
int     nfsm_disct __P((struct mbuf **,caddr_t *,int,int,caddr_t *));
504
void    nfsm_srvfattr __P((struct nfsrv_descript *,struct vattr *,struct nfs_fattr *));
505
void    nfsm_srvwcc __P((struct nfsrv_descript *,int,struct vattr *,int,struct vattr *,struct mbuf **,char **));
506
void    nfsm_srvpostopattr __P((struct nfsrv_descript *,int,struct vattr *,struct mbuf **,char **));
507
int     netaddr_match __P((int,union nethostaddr *,struct mbuf *));
508
int     nfs_request __P((struct vnode *,struct mbuf *,int,struct proc *,struct ucred *,struct mbuf **,struct mbuf **,caddr_t *));
509
int     nfs_loadattrcache __P((struct vnode **,struct mbuf **,caddr_t *,struct vattr *));
510
int     nfs_namei __P((struct nameidata *,fhandle_t *,int,struct nfssvc_sock *,struct mbuf *,struct mbuf **,caddr_t *,struct vnode **,struct proc *,int));
511
void    nfsm_adj __P((struct mbuf *,int,int));
512
int     nfsm_mbuftouio __P((struct mbuf **,struct uio *,int,caddr_t *));
513
void    nfsrv_initcache __P((void));
514
int     nfs_getauth __P((struct nfsmount *,struct nfsreq *,struct ucred *,char **,int *,char *,int *,NFSKERBKEY_T));
515
int     nfs_getnickauth __P((struct nfsmount *,struct ucred *,char **,int *,char *,int));
516
int     nfs_savenickauth __P((struct nfsmount *,struct ucred *,int,NFSKERBKEY_T,struct mbuf **,char **,struct mbuf *));
517
int     nfs_adv __P((struct mbuf **,caddr_t *,int,int));
518
void    nfs_nhinit __P((void));
519
void    nfs_timer __P((void*));
520
u_long nfs_hash __P((nfsfh_t *,int));
521
void    nfsrv_slpderef __P((struct nfssvc_sock *slp));
522
int     nfsrv_dorec __P((struct nfssvc_sock *,struct nfsd *,struct nfsrv_descript **));
523
void    nfsrv_cleancache __P((void));
524
int     nfsrv_getcache __P((struct nfsrv_descript *,struct nfssvc_sock *,struct mbuf **));
525
int     nfs_init __P((void));
526
void    nfsrv_updatecache __P((struct nfsrv_descript *,int,struct mbuf *));
527
int     nfs_connect __P((struct nfsmount *,struct nfsreq *));
528
void    nfs_disconnect __P((struct nfsmount *nmp));
529
int     nfs_getattrcache __P((struct vnode *,struct vattr *));
530
int     nfsm_strtmbuf __P((struct mbuf **,char **,char *,long));
531
int     nfs_bioread __P((struct vnode *,struct uio *,int,struct ucred *, int getpages));
532
int     nfsm_uiotombuf __P((struct uio *,struct mbuf **,int,caddr_t *));
533
void    nfsrv_init __P((int));
534
void    nfs_clearcommit __P((struct mount *));
535
int     nfsrv_errmap __P((struct nfsrv_descript *, int));
536
void    nfsrv_rcv __P((struct socket *so, caddr_t arg, int waitflag));
537
void    nfsrvw_sort __P((gid_t [],int));
538
void    nfsrv_setcred __P((struct ucred *,struct ucred *));
539
int     nfs_writebp __P((struct buf *,int));
540
int     nfsrv_object_create __P(( struct vnode * ));
541
void    nfsrv_wakenfsd __P((struct nfssvc_sock *slp));
542
int     nfsrv_writegather __P((struct nfsrv_descript **, struct nfssvc_sock *,
543
                               struct proc *, struct mbuf **));
544
int     nfs_fsinfo __P((struct nfsmount *, struct vnode *, struct ucred *,
545
                        struct proc *p));
546
 
547
int     nfsrv3_access __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
548
                           struct proc *procp, struct mbuf **mrq));
549
int     nfsrv_commit __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
550
                          struct proc *procp, struct mbuf **mrq));
551
int     nfsrv_create __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
552
                          struct proc *procp, struct mbuf **mrq));
553
int     nfsrv_fhtovp __P((fhandle_t *,int,struct vnode **,
554
                        struct ucred *,struct nfssvc_sock *,struct mbuf *,
555
                        int *,int));
556
int     nfsrv_fsinfo __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
557
                          struct proc *procp, struct mbuf **mrq));
558
int     nfsrv_getattr __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
559
                           struct proc *procp, struct mbuf **mrq));
560
int     nfsrv_link __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
561
                        struct proc *procp, struct mbuf **mrq));
562
int     nfsrv_lookup __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
563
                          struct proc *procp, struct mbuf **mrq));
564
int     nfsrv_mkdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
565
                         struct proc *procp, struct mbuf **mrq));
566
int     nfsrv_mknod __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
567
                         struct proc *procp, struct mbuf **mrq));
568
int     nfsrv_noop __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
569
                        struct proc *procp, struct mbuf **mrq));
570
int     nfsrv_null __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
571
                        struct proc *procp, struct mbuf **mrq));
572
int     nfsrv_pathconf __P((struct nfsrv_descript *nfsd,
573
                            struct nfssvc_sock *slp, struct proc *procp,
574
                            struct mbuf **mrq));
575
int     nfsrv_read __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
576
                        struct proc *procp, struct mbuf **mrq));
577
int     nfsrv_readdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
578
                           struct proc *procp, struct mbuf **mrq));
579
int     nfsrv_readdirplus __P((struct nfsrv_descript *nfsd,
580
                               struct nfssvc_sock *slp, struct proc *procp,
581
                               struct mbuf **mrq));
582
int     nfsrv_readlink __P((struct nfsrv_descript *nfsd,
583
                            struct nfssvc_sock *slp, struct proc *procp,
584
                            struct mbuf **mrq));
585
int     nfsrv_remove __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
586
                          struct proc *procp, struct mbuf **mrq));
587
int     nfsrv_rename __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
588
                          struct proc *procp, struct mbuf **mrq));
589
int     nfsrv_rmdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
590
                         struct proc *procp, struct mbuf **mrq));
591
int     nfsrv_setattr __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
592
                           struct proc *procp, struct mbuf **mrq));
593
int     nfsrv_statfs __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
594
                          struct proc *procp, struct mbuf **mrq));
595
int     nfsrv_symlink __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
596
                           struct proc *procp, struct mbuf **mrq));
597
int     nfsrv_write __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
598
                         struct proc *procp, struct mbuf **mrq));
599
 
600
#ifdef NFS_DEBUG
601
 
602
extern int nfs_debug;
603
#define NFS_DEBUG_ASYNCIO       1 /* asynchronous i/o */
604
#define NFS_DEBUG_WG            2 /* server write gathering */
605
#define NFS_DEBUG_RC            4 /* server request caching */
606
 
607
#define NFS_DPF(cat, args)                                      \
608
        do {                                                    \
609
                if (nfs_debug & NFS_DEBUG_##cat) printf args;   \
610
        } while (0)
611
 
612
#else
613
 
614
#define NFS_DPF(cat, args)
615
 
616
#endif
617
 
618
#endif  /* KERNEL */
619
 
620
#endif

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