FreeBSD/Linux Kernel Cross Reference
sys/nfs/nfs.h
1 /*
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 * $FreeBSD: src/sys/nfs/nfs.h,v 1.18.2.6 1999/09/05 08:19:37 peter 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 u_int32_t 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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