FreeBSD/Linux Kernel Cross Reference
sys/nfs/nfs.h
1 /*
2 * Copyright (c) 1989, 1993, 1995
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 8.4 (Berkeley) 5/1/95
37 * $FreeBSD$
38 */
39
40 #ifndef _NFS_NFS_H_
41 #define _NFS_NFS_H_
42
43 #ifdef _KERNEL
44 #include "opt_nfs.h"
45 #endif
46
47 /*
48 * Tunable constants for nfs
49 */
50
51 #define NFS_MAXIOVEC 34
52 #define NFS_TICKINTVL 5 /* Desired time for a tick (msec) */
53 #define NFS_HZ (hz / nfs_ticks) /* Ticks/sec */
54 #define NFS_TIMEO (1 * NFS_HZ) /* Default timeout = 1 second */
55 #define NFS_MINTIMEO (1 * NFS_HZ) /* Min timeout to use */
56 #define NFS_MAXTIMEO (60 * NFS_HZ) /* Max timeout to backoff to */
57 #define NFS_MINIDEMTIMEO (5 * NFS_HZ) /* Min timeout for non-idempotent ops*/
58 #define NFS_MAXREXMIT 100 /* Stop counting after this many */
59 #define NFS_MAXWINDOW 1024 /* Max number of outstanding requests */
60 #define NFS_RETRANS 10 /* Num of retrans for soft mounts */
61 #define NFS_MAXGRPS 16 /* Max. size of groups list */
62 #ifndef NFS_MINATTRTIMO
63 #define NFS_MINATTRTIMO 3 /* VREG attrib cache timeout in sec */
64 #endif
65 #ifndef NFS_MAXATTRTIMO
66 #define NFS_MAXATTRTIMO 60
67 #endif
68 #ifndef NFS_MINDIRATTRTIMO
69 #define NFS_MINDIRATTRTIMO 30 /* VDIR attrib cache timeout in sec */
70 #endif
71 #ifndef NFS_MAXDIRATTRTIMO
72 #define NFS_MAXDIRATTRTIMO 60
73 #endif
74 #define NFS_WSIZE 8192 /* Def. write data size <= 8192 */
75 #define NFS_RSIZE 8192 /* Def. read data size <= 8192 */
76 #define NFS_READDIRSIZE 8192 /* Def. readdir size */
77 #define NFS_DEFRAHEAD 1 /* Def. read ahead # blocks */
78 #define NFS_MAXRAHEAD 4 /* Max. read ahead # blocks */
79 #define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */
80 #define NFS_MAXASYNCDAEMON 20 /* Max. number async_daemons runnable */
81 #define NFS_MAXGATHERDELAY 100 /* Max. write gather delay (msec) */
82 #ifndef NFS_GATHERDELAY
83 #define NFS_GATHERDELAY 10 /* Default write gather delay (msec) */
84 #endif
85 #define NFS_DIRBLKSIZ 4096 /* Must be a multiple of DIRBLKSIZ */
86 #ifdef _KERNEL
87 #define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */
88 #endif
89
90 /*
91 * Oddballs
92 */
93 #define NMOD(a) ((a) % nfs_asyncdaemons)
94 #define NFS_CMPFH(n, f, s) \
95 ((n)->n_fhsize == (s) && !bcmp((caddr_t)(n)->n_fhp, (caddr_t)(f), (s)))
96 #define NFS_ISV3(v) (VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV3)
97 #define NFS_SRVMAXDATA(n) \
98 (((n)->nd_flag & ND_NFSV3) ? (((n)->nd_nam2) ? \
99 NFS_MAXDGRAMDATA : NFS_MAXDATA) : NFS_V2MAXDATA)
100
101 /*
102 * XXX
103 * The B_INVAFTERWRITE flag should be set to whatever is required by the
104 * buffer cache code to say "Invalidate the block after it is written back".
105 */
106 #define B_INVAFTERWRITE B_NOCACHE
107
108 /*
109 * The IO_METASYNC flag should be implemented for local file systems.
110 * (Until then, it is nothin at all.)
111 */
112 #ifndef IO_METASYNC
113 #define IO_METASYNC 0
114 #endif
115
116 /*
117 * Arguments to mount NFS
118 */
119 #define NFS_ARGSVERSION 3 /* change when nfs_args changes */
120 struct nfs_args {
121 int version; /* args structure version number */
122 struct sockaddr *addr; /* file server address */
123 int addrlen; /* length of address */
124 int sotype; /* Socket type */
125 int proto; /* and Protocol */
126 u_char *fh; /* File handle to be mounted */
127 int fhsize; /* Size, in bytes, of fh */
128 int flags; /* flags */
129 int wsize; /* write size in bytes */
130 int rsize; /* read size in bytes */
131 int readdirsize; /* readdir size in bytes */
132 int timeo; /* initial timeout in .1 secs */
133 int retrans; /* times to retry send */
134 int maxgrouplist; /* Max. size of group list */
135 int readahead; /* # of blocks to readahead */
136 int leaseterm; /* Term (sec) of lease */
137 int deadthresh; /* Retrans threshold */
138 char *hostname; /* server's name */
139 int acregmin; /* cache attrs for reg files min time */
140 int acregmax; /* cache attrs for reg files max time */
141 int acdirmin; /* cache attrs for dirs min time */
142 int acdirmax; /* cache attrs for dirs max time */
143 };
144
145 /*
146 * NFS mount option flags
147 */
148 #define NFSMNT_SOFT 0x00000001 /* soft mount (hard is default) */
149 #define NFSMNT_WSIZE 0x00000002 /* set write size */
150 #define NFSMNT_RSIZE 0x00000004 /* set read size */
151 #define NFSMNT_TIMEO 0x00000008 /* set initial timeout */
152 #define NFSMNT_RETRANS 0x00000010 /* set number of request retries */
153 #define NFSMNT_MAXGRPS 0x00000020 /* set maximum grouplist size */
154 #define NFSMNT_INT 0x00000040 /* allow interrupts on hard mount */
155 #define NFSMNT_NOCONN 0x00000080 /* Don't Connect the socket */
156 #define NFSMNT_NQNFS 0x00000100 /* Use Nqnfs protocol */
157 #define NFSMNT_NFSV3 0x00000200 /* Use NFS Version 3 protocol */
158 #define NFSMNT_KERB 0x00000400 /* Use Kerberos authentication */
159 #define NFSMNT_DUMBTIMR 0x00000800 /* Don't estimate rtt dynamically */
160 #define NFSMNT_LEASETERM 0x00001000 /* set lease term (nqnfs) */
161 #define NFSMNT_READAHEAD 0x00002000 /* set read ahead */
162 #define NFSMNT_DEADTHRESH 0x00004000 /* set dead server retry thresh */
163 #define NFSMNT_RESVPORT 0x00008000 /* Allocate a reserved port */
164 #define NFSMNT_RDIRPLUS 0x00010000 /* Use Readdirplus for V3 */
165 #define NFSMNT_READDIRSIZE 0x00020000 /* Set readdir size */
166 #define NFSMNT_ACREGMIN 0x00040000
167 #define NFSMNT_ACREGMAX 0x00080000
168 #define NFSMNT_ACDIRMIN 0x00100000
169 #define NFSMNT_ACDIRMAX 0x00200000
170
171 #define NFSSTA_HASWRITEVERF 0x00040000 /* Has write verifier for V3 */
172 #define NFSSTA_GOTPATHCONF 0x00080000 /* Got the V3 pathconf info */
173 #define NFSSTA_GOTFSINFO 0x00100000 /* Got the V3 fsinfo */
174 #define NFSSTA_MNTD 0x00200000 /* Mnt server for mnt point */
175 #define NFSSTA_DISMINPROG 0x00400000 /* Dismount in progress */
176 #define NFSSTA_DISMNT 0x00800000 /* Dismounted */
177 #define NFSSTA_SNDLOCK 0x01000000 /* Send socket lock */
178 #define NFSSTA_WANTSND 0x02000000 /* Want above */
179 #define NFSSTA_RCVLOCK 0x04000000 /* Rcv socket lock */
180 #define NFSSTA_WANTRCV 0x08000000 /* Want above */
181 #define NFSSTA_WAITAUTH 0x10000000 /* Wait for authentication */
182 #define NFSSTA_HASAUTH 0x20000000 /* Has authenticator */
183 #define NFSSTA_WANTAUTH 0x40000000 /* Wants an authenticator */
184 #define NFSSTA_AUTHERR 0x80000000 /* Authentication error */
185
186 /*
187 * Structures for the nfssvc(2) syscall. Not that anyone but nfsd and mount_nfs
188 * should ever try and use it.
189 */
190 struct nfsd_args {
191 int sock; /* Socket to serve */
192 caddr_t name; /* Client addr for connection based sockets */
193 int namelen; /* Length of name */
194 };
195
196 struct nfsd_srvargs {
197 struct nfsd *nsd_nfsd; /* Pointer to in kernel nfsd struct */
198 uid_t nsd_uid; /* Effective uid mapped to cred */
199 u_int32_t nsd_haddr; /* Ip address of client */
200 struct ucred nsd_cr; /* Cred. uid maps to */
201 u_int nsd_authlen; /* Length of auth string (ret) */
202 u_char *nsd_authstr; /* Auth string (ret) */
203 u_int nsd_verflen; /* and the verfier */
204 u_char *nsd_verfstr;
205 struct timeval nsd_timestamp; /* timestamp from verifier */
206 u_int32_t nsd_ttl; /* credential ttl (sec) */
207 NFSKERBKEY_T nsd_key; /* Session key */
208 };
209
210 struct nfsd_cargs {
211 char *ncd_dirp; /* Mount dir path */
212 uid_t ncd_authuid; /* Effective uid */
213 int ncd_authtype; /* Type of authenticator */
214 u_int ncd_authlen; /* Length of authenticator string */
215 u_char *ncd_authstr; /* Authenticator string */
216 u_int ncd_verflen; /* and the verifier */
217 u_char *ncd_verfstr;
218 NFSKERBKEY_T ncd_key; /* Session key */
219 };
220
221 /*
222 * XXX to allow amd to include nfs.h without nfsproto.h
223 */
224 #ifdef NFS_NPROCS
225 /*
226 * Stats structure
227 */
228 struct nfsstats {
229 int attrcache_hits;
230 int attrcache_misses;
231 int lookupcache_hits;
232 int lookupcache_misses;
233 int direofcache_hits;
234 int direofcache_misses;
235 int biocache_reads;
236 int read_bios;
237 int read_physios;
238 int biocache_writes;
239 int write_bios;
240 int write_physios;
241 int biocache_readlinks;
242 int readlink_bios;
243 int biocache_readdirs;
244 int readdir_bios;
245 int rpccnt[NFS_NPROCS];
246 int rpcretries;
247 int srvrpccnt[NFS_NPROCS];
248 int srvrpc_errs;
249 int srv_errs;
250 int rpcrequests;
251 int rpctimeouts;
252 int rpcunexpected;
253 int rpcinvalid;
254 int srvcache_inproghits;
255 int srvcache_idemdonehits;
256 int srvcache_nonidemdonehits;
257 int srvcache_misses;
258 int srvnqnfs_leases;
259 int srvnqnfs_maxleases;
260 int srvnqnfs_getleases;
261 int srvvop_writes;
262 int accesscache_hits;
263 int accesscache_misses;
264 };
265 #endif
266
267 /*
268 * Flags for nfssvc() system call.
269 */
270 #define NFSSVC_BIOD 0x002
271 #define NFSSVC_NFSD 0x004
272 #define NFSSVC_ADDSOCK 0x008
273 #define NFSSVC_AUTHIN 0x010
274 #define NFSSVC_GOTAUTH 0x040
275 #define NFSSVC_AUTHINFAIL 0x080
276 #define NFSSVC_MNTD 0x100
277
278 /*
279 * fs.nfs sysctl(3) identifiers
280 */
281 #define NFS_NFSSTATS 1 /* struct: struct nfsstats */
282 #define NFS_NFSPRIVPORT 2 /* int: prohibit nfs to resvports */
283
284 #define FS_NFS_NAMES { \
285 { 0, 0 }, \
286 { "nfsstats", CTLTYPE_STRUCT }, \
287 { "nfsprivport", CTLTYPE_INT }, \
288 }
289
290 #ifdef _KERNEL
291
292 #ifdef MALLOC_DECLARE
293 MALLOC_DECLARE(M_NFSREQ);
294 MALLOC_DECLARE(M_NFSDIROFF);
295 MALLOC_DECLARE(M_NFSRVDESC);
296 MALLOC_DECLARE(M_NFSUID);
297 MALLOC_DECLARE(M_NQLEASE);
298 MALLOC_DECLARE(M_NFSD);
299 MALLOC_DECLARE(M_NFSBIGFH);
300 MALLOC_DECLARE(M_NFSHASH);
301 #endif
302
303 #ifdef ZONE_INTERRUPT
304 extern vm_zone_t nfsmount_zone;
305 #endif
306
307 extern struct callout_handle nfs_timer_handle;
308
309 struct uio; struct buf; struct vattr; struct nameidata; /* XXX */
310
311 /*
312 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts.
313 * What should be in this set is open to debate, but I believe that since
314 * I/O system calls on ufs are never interrupted by signals the set should
315 * be minimal. My reasoning is that many current programs that use signals
316 * such as SIGALRM will not expect file I/O system calls to be interrupted
317 * by them and break.
318 */
319 #define NFSINT_SIGMASK(set) \
320 (SIGISMEMBER(set, SIGINT) || SIGISMEMBER(set, SIGTERM) || \
321 SIGISMEMBER(set, SIGHUP) || SIGISMEMBER(set, SIGKILL) || \
322 SIGISMEMBER(set, SIGQUIT))
323
324 /*
325 * Socket errors ignored for connectionless sockets??
326 * For now, ignore them all
327 */
328 #define NFSIGNORE_SOERROR(s, e) \
329 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \
330 ((s) & PR_CONNREQUIRED) == 0)
331
332 /*
333 * Nfs outstanding request list element
334 */
335 struct nfsreq {
336 TAILQ_ENTRY(nfsreq) r_chain;
337 struct mbuf *r_mreq;
338 struct mbuf *r_mrep;
339 struct mbuf *r_md;
340 caddr_t r_dpos;
341 struct nfsmount *r_nmp;
342 struct vnode *r_vp;
343 u_int32_t r_xid;
344 int r_flags; /* flags on request, see below */
345 int r_retry; /* max retransmission count */
346 int r_rexmit; /* current retrans count */
347 int r_timer; /* tick counter on reply */
348 u_int32_t r_procnum; /* NFS procedure number */
349 int r_rtt; /* RTT for rpc */
350 struct proc *r_procp; /* Proc that did I/O system call */
351 };
352
353 /*
354 * Queue head for nfsreq's
355 */
356 extern TAILQ_HEAD(nfs_reqq, nfsreq) nfs_reqq;
357
358 /* Flag values for r_flags */
359 #define R_TIMING 0x01 /* timing request (in mntp) */
360 #define R_SENT 0x02 /* request has been sent */
361 #define R_SOFTTERM 0x04 /* soft mnt, too many retries */
362 #define R_INTR 0x08 /* intr mnt, signal pending */
363 #define R_SOCKERR 0x10 /* Fatal error on socket */
364 #define R_TPRINTFMSG 0x20 /* Did a tprintf msg. */
365 #define R_MUSTRESEND 0x40 /* Must resend request */
366 #define R_GETONEREP 0x80 /* Probe for one reply only */
367
368 /*
369 * A list of nfssvc_sock structures is maintained with all the sockets
370 * that require service by the nfsd.
371 * The nfsuid structs hang off of the nfssvc_sock structs in both lru
372 * and uid hash lists.
373 */
374 #ifndef NFS_UIDHASHSIZ
375 #define NFS_UIDHASHSIZ 29 /* Tune the size of nfssvc_sock with this */
376 #endif
377 #define NUIDHASH(sock, uid) \
378 (&(sock)->ns_uidhashtbl[(uid) % NFS_UIDHASHSIZ])
379 #ifndef NFS_WDELAYHASHSIZ
380 #define NFS_WDELAYHASHSIZ 16 /* and with this */
381 #endif
382 #define NWDELAYHASH(sock, f) \
383 (&(sock)->ns_wdelayhashtbl[(*((u_int32_t *)(f))) % NFS_WDELAYHASHSIZ])
384 #ifndef NFS_MUIDHASHSIZ
385 #define NFS_MUIDHASHSIZ 63 /* Tune the size of nfsmount with this */
386 #endif
387 #define NMUIDHASH(nmp, uid) \
388 (&(nmp)->nm_uidhashtbl[(uid) % NFS_MUIDHASHSIZ])
389 #define NFSNOHASH(fhsum) \
390 (&nfsnodehashtbl[(fhsum) & nfsnodehash])
391
392 /*
393 * Network address hash list element
394 */
395 union nethostaddr {
396 u_int32_t had_inetaddr;
397 struct sockaddr *had_nam;
398 };
399
400 struct nfsuid {
401 TAILQ_ENTRY(nfsuid) nu_lru; /* LRU chain */
402 LIST_ENTRY(nfsuid) nu_hash; /* Hash list */
403 int nu_flag; /* Flags */
404 union nethostaddr nu_haddr; /* Host addr. for dgram sockets */
405 struct ucred nu_cr; /* Cred uid mapped to */
406 int nu_expire; /* Expiry time (sec) */
407 struct timeval nu_timestamp; /* Kerb. timestamp */
408 u_int32_t nu_nickname; /* Nickname on server */
409 NFSKERBKEY_T nu_key; /* and session key */
410 };
411
412 #define nu_inetaddr nu_haddr.had_inetaddr
413 #define nu_nam nu_haddr.had_nam
414 /* Bits for nu_flag */
415 #define NU_INETADDR 0x1
416 #define NU_NAM 0x2
417 #define NU_NETFAM(u) (((u)->nu_flag & NU_INETADDR) ? AF_INET : AF_ISO)
418
419 struct nfsrv_rec {
420 STAILQ_ENTRY(nfsrv_rec) nr_link;
421 struct sockaddr *nr_address;
422 struct mbuf *nr_packet;
423 };
424
425 struct nfssvc_sock {
426 TAILQ_ENTRY(nfssvc_sock) ns_chain; /* List of all nfssvc_sock's */
427 TAILQ_HEAD(, nfsuid) ns_uidlruhead;
428 struct file *ns_fp;
429 struct socket *ns_so;
430 struct sockaddr *ns_nam;
431 struct mbuf *ns_raw;
432 struct mbuf *ns_rawend;
433 STAILQ_HEAD(, nfsrv_rec) ns_rec;
434 struct mbuf *ns_frag;
435 int ns_flag;
436 int ns_solock;
437 int ns_cc;
438 int ns_reclen;
439 int ns_numuids;
440 u_int32_t ns_sref;
441 LIST_HEAD(, nfsrv_descript) ns_tq; /* Write gather lists */
442 LIST_HEAD(, nfsuid) ns_uidhashtbl[NFS_UIDHASHSIZ];
443 LIST_HEAD(nfsrvw_delayhash, nfsrv_descript) ns_wdelayhashtbl[NFS_WDELAYHASHSIZ];
444 };
445
446 /* Bits for "ns_flag" */
447 #define SLP_VALID 0x01
448 #define SLP_DOREC 0x02
449 #define SLP_NEEDQ 0x04
450 #define SLP_DISCONN 0x08
451 #define SLP_GETSTREAM 0x10
452 #define SLP_LASTFRAG 0x20
453 #define SLP_ALLFLAGS 0xff
454
455 extern TAILQ_HEAD(nfssvc_sockhead, nfssvc_sock) nfssvc_sockhead;
456 extern int nfssvc_sockhead_flag;
457 #define SLP_INIT 0x01
458 #define SLP_WANTINIT 0x02
459
460 /*
461 * One of these structures is allocated for each nfsd.
462 */
463 struct nfsd {
464 TAILQ_ENTRY(nfsd) nfsd_chain; /* List of all nfsd's */
465 int nfsd_flag; /* NFSD_ flags */
466 struct nfssvc_sock *nfsd_slp; /* Current socket */
467 int nfsd_authlen; /* Authenticator len */
468 u_char nfsd_authstr[RPCAUTH_MAXSIZ]; /* Authenticator data */
469 int nfsd_verflen; /* and the Verifier */
470 u_char nfsd_verfstr[RPCVERF_MAXSIZ];
471 struct proc *nfsd_procp; /* Proc ptr */
472 struct nfsrv_descript *nfsd_nd; /* Associated nfsrv_descript */
473 };
474
475 /* Bits for "nfsd_flag" */
476 #define NFSD_WAITING 0x01
477 #define NFSD_REQINPROG 0x02
478 #define NFSD_NEEDAUTH 0x04
479 #define NFSD_AUTHFAIL 0x08
480
481 /*
482 * This structure is used by the server for describing each request.
483 * Some fields are used only when write request gathering is performed.
484 */
485 struct nfsrv_descript {
486 u_quad_t nd_time; /* Write deadline (usec) */
487 off_t nd_off; /* Start byte offset */
488 off_t nd_eoff; /* and end byte offset */
489 LIST_ENTRY(nfsrv_descript) nd_hash; /* Hash list */
490 LIST_ENTRY(nfsrv_descript) nd_tq; /* and timer list */
491 LIST_HEAD(,nfsrv_descript) nd_coalesce; /* coalesced writes */
492 struct mbuf *nd_mrep; /* Request mbuf list */
493 struct mbuf *nd_md; /* Current dissect mbuf */
494 struct mbuf *nd_mreq; /* Reply mbuf list */
495 struct sockaddr *nd_nam; /* and socket addr */
496 struct sockaddr *nd_nam2; /* return socket addr */
497 caddr_t nd_dpos; /* Current dissect pos */
498 u_int32_t nd_procnum; /* RPC # */
499 int nd_stable; /* storage type */
500 int nd_flag; /* nd_flag */
501 int nd_len; /* Length of this write */
502 int nd_repstat; /* Reply status */
503 u_int32_t nd_retxid; /* Reply xid */
504 u_int32_t nd_duration; /* Lease duration */
505 struct timeval nd_starttime; /* Time RPC initiated */
506 fhandle_t nd_fh; /* File handle */
507 struct ucred nd_cr; /* Credentials */
508 };
509
510 /* Bits for "nd_flag" */
511 #define ND_READ LEASE_READ
512 #define ND_WRITE LEASE_WRITE
513 #define ND_CHECK 0x04
514 #define ND_LEASE (ND_READ | ND_WRITE | ND_CHECK)
515 #define ND_NFSV3 0x08
516 #define ND_NQNFS 0x10
517 #define ND_KERBNICK 0x20
518 #define ND_KERBFULL 0x40
519 #define ND_KERBAUTH (ND_KERBNICK | ND_KERBFULL)
520
521 extern TAILQ_HEAD(nfsd_head, nfsd) nfsd_head;
522 extern int nfsd_head_flag;
523 #define NFSD_CHECKSLP 0x01
524
525 /*
526 * These macros compare nfsrv_descript structures.
527 */
528 #define NFSW_CONTIG(o, n) \
529 ((o)->nd_eoff >= (n)->nd_off && \
530 !bcmp((caddr_t)&(o)->nd_fh, (caddr_t)&(n)->nd_fh, NFSX_V3FH))
531
532 #define NFSW_SAMECRED(o, n) \
533 (((o)->nd_flag & ND_KERBAUTH) == ((n)->nd_flag & ND_KERBAUTH) && \
534 !bcmp((caddr_t)&(o)->nd_cr, (caddr_t)&(n)->nd_cr, \
535 sizeof (struct ucred)))
536
537 /*
538 * Defines for WebNFS
539 */
540
541 #define WEBNFS_ESC_CHAR '%'
542 #define WEBNFS_SPECCHAR_START 0x80
543
544 #define WEBNFS_NATIVE_CHAR 0x80
545 /*
546 * ..
547 * Possibly more here in the future.
548 */
549
550 /*
551 * Macro for converting escape characters in WebNFS pathnames.
552 * Should really be in libkern.
553 */
554
555 #define HEXTOC(c) \
556 ((c) >= 'a' ? ((c) - ('a' - 10)) : \
557 ((c) >= 'A' ? ((c) - ('A' - 10)) : ((c) - '')))
558 #define HEXSTRTOI(p) \
559 ((HEXTOC(p[0]) << 4) + HEXTOC(p[1]))
560
561 #ifdef NFS_DEBUG
562
563 extern int nfs_debug;
564 #define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */
565 #define NFS_DEBUG_WG 2 /* server write gathering */
566 #define NFS_DEBUG_RC 4 /* server request caching */
567
568 #define NFS_DPF(cat, args) \
569 do { \
570 if (nfs_debug & NFS_DEBUG_##cat) printf args; \
571 } while (0)
572
573 #else
574
575 #define NFS_DPF(cat, args)
576
577 #endif
578
579 u_quad_t nfs_curusec __P((void));
580 int nfs_init __P((struct vfsconf *vfsp));
581 int nfs_uninit __P((struct vfsconf *vfsp));
582 int nfs_reply __P((struct nfsreq *));
583 int nfs_getreq __P((struct nfsrv_descript *,struct nfsd *,int));
584 int nfs_send __P((struct socket *, struct sockaddr *, struct mbuf *,
585 struct nfsreq *));
586 int nfs_rephead __P((int, struct nfsrv_descript *, struct nfssvc_sock *,
587 int, int, u_quad_t *, struct mbuf **, struct mbuf **,
588 caddr_t *));
589 int nfs_sndlock __P((struct nfsreq *));
590 void nfs_sndunlock __P((struct nfsreq *));
591 int nfs_slplock __P((struct nfssvc_sock *, int));
592 void nfs_slpunlock __P((struct nfssvc_sock *));
593 int nfs_disct __P((struct mbuf **, caddr_t *, int, int, caddr_t *));
594 int nfs_vinvalbuf __P((struct vnode *, int, struct ucred *, struct proc *,
595 int));
596 int nfs_readrpc __P((struct vnode *, struct uio *, struct ucred *));
597 int nfs_writerpc __P((struct vnode *, struct uio *, struct ucred *, int *,
598 int *));
599 int nfs_commit __P((struct vnode *vp, u_quad_t offset, int cnt,
600 struct ucred *cred, struct proc *procp));
601 int nfs_readdirrpc __P((struct vnode *, struct uio *, struct ucred *));
602 int nfs_asyncio __P((struct buf *, struct ucred *, struct proc *));
603 int nfs_doio __P((struct buf *, struct ucred *, struct proc *));
604 int nfs_readlinkrpc __P((struct vnode *, struct uio *, struct ucred *));
605 int nfs_sigintr __P((struct nfsmount *, struct nfsreq *, struct proc *));
606 int nfs_readdirplusrpc __P((struct vnode *, struct uio *, struct ucred *));
607 int nfsm_disct __P((struct mbuf **, caddr_t *, int, int, caddr_t *));
608 void nfsm_srvfattr __P((struct nfsrv_descript *, struct vattr *,
609 struct nfs_fattr *));
610 void nfsm_srvwcc __P((struct nfsrv_descript *, int, struct vattr *, int,
611 struct vattr *, struct mbuf **, char **));
612 void nfsm_srvpostopattr __P((struct nfsrv_descript *, int, struct vattr *,
613 struct mbuf **, char **));
614 int netaddr_match __P((int, union nethostaddr *, struct sockaddr *));
615 int nfs_request __P((struct vnode *, struct mbuf *, int, struct proc *,
616 struct ucred *, struct mbuf **, struct mbuf **,
617 caddr_t *));
618 int nfs_loadattrcache __P((struct vnode **, struct mbuf **, caddr_t *,
619 struct vattr *, int));
620 int nfs_namei __P((struct nameidata *, fhandle_t *, int,
621 struct nfssvc_sock *, struct sockaddr *, struct mbuf **,
622 caddr_t *, struct vnode **, struct proc *, int, int));
623 void nfsm_adj __P((struct mbuf *, int, int));
624 int nfsm_mbuftouio __P((struct mbuf **, struct uio *, int, caddr_t *));
625 void nfsrv_initcache __P((void));
626 int nfs_getauth __P((struct nfsmount *, struct nfsreq *, struct ucred *,
627 char **, int *, char *, int *, NFSKERBKEY_T));
628 int nfs_getnickauth __P((struct nfsmount *, struct ucred *, char **,
629 int *, char *, int));
630 int nfs_savenickauth __P((struct nfsmount *, struct ucred *, int,
631 NFSKERBKEY_T, struct mbuf **, char **,
632 struct mbuf *));
633 int nfs_adv __P((struct mbuf **, caddr_t *, int, int));
634 void nfs_nhinit __P((void));
635 int nfs_nmcancelreqs __P((struct nfsmount *));
636 void nfs_timer __P((void*));
637 int nfsrv_dorec __P((struct nfssvc_sock *, struct nfsd *,
638 struct nfsrv_descript **));
639 int nfsrv_getcache __P((struct nfsrv_descript *, struct nfssvc_sock *,
640 struct mbuf **));
641 void nfsrv_updatecache __P((struct nfsrv_descript *, int, struct mbuf *));
642 void nfsrv_cleancache __P((void));
643 int nfs_connect __P((struct nfsmount *, struct nfsreq *));
644 void nfs_disconnect __P((struct nfsmount *));
645 void nfs_safedisconnect __P((struct nfsmount *));
646 int nfs_getattrcache __P((struct vnode *, struct vattr *));
647 int nfsm_strtmbuf __P((struct mbuf **, char **, const char *, long));
648 int nfs_bioread __P((struct vnode *, struct uio *, int, struct ucred *));
649 int nfsm_uiotombuf __P((struct uio *, struct mbuf **, int, caddr_t *));
650 void nfsrv_init __P((int));
651 void nfs_clearcommit __P((struct mount *));
652 int nfsrv_errmap __P((struct nfsrv_descript *, int));
653 void nfsrvw_sort __P((gid_t *, int));
654 void nfsrv_setcred __P((struct ucred *, struct ucred *));
655 int nfs_writebp __P((struct buf *, int, struct proc *));
656 int nfsrv_object_create __P((struct vnode *));
657 void nfsrv_wakenfsd __P((struct nfssvc_sock *slp));
658 int nfsrv_writegather __P((struct nfsrv_descript **, struct nfssvc_sock *,
659 struct proc *, struct mbuf **));
660 int nfs_fsinfo __P((struct nfsmount *, struct vnode *, struct ucred *,
661 struct proc *p));
662
663 int nfsrv3_access __P((struct nfsrv_descript *nfsd,
664 struct nfssvc_sock *slp,
665 struct proc *procp, struct mbuf **mrq));
666 int nfsrv_commit __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
667 struct proc *procp, struct mbuf **mrq));
668 int nfsrv_create __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
669 struct proc *procp, struct mbuf **mrq));
670 int nfsrv_fhtovp __P((fhandle_t *, int, struct vnode **, struct ucred *,
671 struct nfssvc_sock *, struct sockaddr *, int *,
672 int, int));
673 int nfsrv_setpublicfs __P((struct mount *, struct netexport *,
674 struct export_args *));
675 int nfs_ispublicfh __P((fhandle_t *));
676 int nfsrv_fsinfo __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
677 struct proc *procp, struct mbuf **mrq));
678 int nfsrv_getattr __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
679 struct proc *procp, struct mbuf **mrq));
680 int nfsrv_link __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
681 struct proc *procp, struct mbuf **mrq));
682 int nfsrv_lookup __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
683 struct proc *procp, struct mbuf **mrq));
684 int nfsrv_mkdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
685 struct proc *procp, struct mbuf **mrq));
686 int nfsrv_mknod __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
687 struct proc *procp, struct mbuf **mrq));
688 int nfsrv_noop __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
689 struct proc *procp, struct mbuf **mrq));
690 int nfsrv_null __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
691 struct proc *procp, struct mbuf **mrq));
692 int nfsrv_pathconf __P((struct nfsrv_descript *nfsd,
693 struct nfssvc_sock *slp, struct proc *procp,
694 struct mbuf **mrq));
695 int nfsrv_read __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
696 struct proc *procp, struct mbuf **mrq));
697 int nfsrv_readdir __P((struct nfsrv_descript *nfsd,
698 struct nfssvc_sock *slp,
699 struct proc *procp, struct mbuf **mrq));
700 int nfsrv_readdirplus __P((struct nfsrv_descript *nfsd,
701 struct nfssvc_sock *slp, struct proc *procp,
702 struct mbuf **mrq));
703 int nfsrv_readlink __P((struct nfsrv_descript *nfsd,
704 struct nfssvc_sock *slp, struct proc *procp,
705 struct mbuf **mrq));
706 int nfsrv_remove __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
707 struct proc *procp, struct mbuf **mrq));
708 int nfsrv_rename __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
709 struct proc *procp, struct mbuf **mrq));
710 int nfsrv_rmdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
711 struct proc *procp, struct mbuf **mrq));
712 int nfsrv_setattr __P((struct nfsrv_descript *nfsd,
713 struct nfssvc_sock *slp,
714 struct proc *procp, struct mbuf **mrq));
715 int nfsrv_statfs __P((struct nfsrv_descript *nfsd,
716 struct nfssvc_sock *slp,
717 struct proc *procp, struct mbuf **mrq));
718 int nfsrv_symlink __P((struct nfsrv_descript *nfsd,
719 struct nfssvc_sock *slp,
720 struct proc *procp, struct mbuf **mrq));
721 int nfsrv_write __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
722 struct proc *procp, struct mbuf **mrq));
723 void nfsrv_rcv __P((struct socket *so, void *arg, int waitflag));
724 void nfsrv_slpderef __P((struct nfssvc_sock *slp));
725 int nfs_meta_setsize __P((struct vnode *vp, struct ucred *cred, struct proc *p, u_quad_t nsize));
726
727 #endif /* _KERNEL */
728
729 #endif
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