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HAMMER 60I/Many: Mirroring
[dragonfly.git] / sys / vfs / nfs / nfs.h
blobc81156478ea066c0b38d9c8ccef780c38d17651c
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: src/sys/nfs/nfs.h,v 1.53.2.5 2002/02/20 01:35:34 iedowse Exp $
38 * $DragonFly: src/sys/vfs/nfs/nfs.h,v 1.19 2006/12/23 00:41:29 swildner Exp $
39 */
40
41 #ifndef _NFS_NFS_H_
42 #define _NFS_NFS_H_
43
44 #ifdef _KERNEL
45 #include "opt_nfs.h"
46 #endif
47
48 /*
49 * Tunable constants for nfs
50 */
51
52 #define NFS_MAXIOVEC 34
53 #define NFS_TICKINTVL 5 /* Desired time for a tick (msec) */
54 #define NFS_HZ (hz / nfs_ticks) /* Ticks/sec */
55 #define NFS_TIMEO (1 * NFS_HZ) /* Default timeout = 1 second */
56 #define NFS_MINTIMEO (1 * NFS_HZ) /* Min timeout to use */
57 #define NFS_MAXTIMEO (60 * NFS_HZ) /* Max timeout to backoff to */
58 #define NFS_MINIDEMTIMEO (5 * NFS_HZ) /* Min timeout for non-idempotent ops*/
59 #define NFS_MAXREXMIT 100 /* Stop counting after this many */
60 #define NFS_MAXWINDOW 1024 /* Max number of outstanding requests */
61 #define NFS_RETRANS 10 /* Num of retrans for soft mounts */
62 #define NFS_MAXGRPS 16 /* Max. size of groups list */
63 #ifndef NFS_MINATTRTIMO
64 #define NFS_MINATTRTIMO 3 /* VREG attrib cache timeout in sec */
65 #endif
66 #ifndef NFS_DEFATTRTIMO
67 #define NFS_DEFATTRTIMO 10 /* VREG attrib cache timeout in sec */
68 #endif
69 #ifndef NFS_MAXATTRTIMO
70 #define NFS_MAXATTRTIMO 60
71 #endif
72 #ifndef NFS_MINDIRATTRTIMO
73 #define NFS_MINDIRATTRTIMO 30 /* VDIR attrib cache timeout in sec */
74 #endif
75 #ifndef NFS_MAXDIRATTRTIMO
76 #define NFS_MAXDIRATTRTIMO 60
77 #endif
78 #ifndef NFS_DEADTHRESH
79 #define NFS_DEADTHRESH NFS_NEVERDEAD
80 #endif
81 #define NFS_NEVERDEAD 9
82 #define NFS_WSIZE 8192 /* Def. write data size <= 8192 */
83 #define NFS_RSIZE 8192 /* Def. read data size <= 8192 */
84 #define NFS_READDIRSIZE 8192 /* Def. readdir size */
85 #define NFS_DEFRAHEAD 1 /* Def. read ahead # blocks */
86 #define NFS_MAXRAHEAD 4 /* Max. read ahead # blocks */
87 #define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */
88 #define NFS_MAXASYNCDAEMON 20 /* Max. number async_daemons runnable */
89 #define NFS_MAXGATHERDELAY 100 /* Max. write gather delay (msec) */
90 #ifndef NFS_GATHERDELAY
91 #define NFS_GATHERDELAY 20 /* Default write gather delay (msec) */
92 #endif
93 #define NFS_DIRBLKSIZ 4096 /* Must be a multiple of DIRBLKSIZ */
94 #ifdef _KERNEL
95 #define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */
96 #endif
97
98 /*
99 * Oddballs
100 */
101 #define NMOD(a) ((a) % nfs_asyncdaemons)
102 #define NFS_CMPFH(n, f, s) \
103 ((n)->n_fhsize == (s) && !bcmp((caddr_t)(n)->n_fhp, (caddr_t)(f), (s)))
104 #define NFS_ISV3(v) (VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV3)
105 #define NFS_SRVMAXDATA(n) \
106 (((n)->nd_flag & ND_NFSV3) ? (((n)->nd_nam2) ? \
107 NFS_MAXDGRAMDATA : NFS_MAXDATA) : NFS_V2MAXDATA)
108
109 /*
110 * The IO_METASYNC flag should be implemented for local file systems.
111 * (Until then, it is nothin at all.)
112 */
113 #ifndef IO_METASYNC
114 #define IO_METASYNC 0
115 #endif
116
117 /*
118 * Arguments to mount NFS
119 */
120 #define NFS_ARGSVERSION 3 /* change when nfs_args changes */
121 struct nfs_args {
122 int version; /* args structure version number */
123 struct sockaddr *addr; /* file server address */
124 int addrlen; /* length of address */
125 int sotype; /* Socket type */
126 int proto; /* and Protocol */
127 u_char *fh; /* File handle to be mounted */
128 int fhsize; /* Size, in bytes, of fh */
129 int flags; /* flags */
130 int wsize; /* write size in bytes */
131 int rsize; /* read size in bytes */
132 int readdirsize; /* readdir size in bytes */
133 int timeo; /* initial timeout in .1 secs */
134 int retrans; /* times to retry send */
135 int maxgrouplist; /* Max. size of group list */
136 int readahead; /* # of blocks to readahead */
137 int unused01; /* Term (sec) of lease */
138 int deadthresh; /* Retrans threshold */
139 char *hostname; /* server's name */
140 int acregmin; /* cache attrs for reg files min time */
141 int acregmax; /* cache attrs for reg files max time */
142 int acdirmin; /* cache attrs for dirs min time */
143 int acdirmax; /* cache attrs for dirs max time */
144 };
145
146 /*
147 * NFS mount option flags
148 */
149 #define NFSMNT_SOFT 0x00000001 /* soft mount (hard is default) */
150 #define NFSMNT_WSIZE 0x00000002 /* set write size */
151 #define NFSMNT_RSIZE 0x00000004 /* set read size */
152 #define NFSMNT_TIMEO 0x00000008 /* set initial timeout */
153 #define NFSMNT_RETRANS 0x00000010 /* set number of request retries */
154 #define NFSMNT_MAXGRPS 0x00000020 /* set maximum grouplist size */
155 #define NFSMNT_INT 0x00000040 /* allow interrupts on hard mount */
156 #define NFSMNT_NOCONN 0x00000080 /* Don't Connect the socket */
157 #define NFSMNT_UNUSED0100 0x00000100
158 #define NFSMNT_NFSV3 0x00000200 /* Use NFS Version 3 protocol */
159 #define NFSMNT_KERB 0x00000400 /* Use Kerberos authentication */
160 #define NFSMNT_DUMBTIMR 0x00000800 /* Don't estimate rtt dynamically */
161 #define NFSMNT_UNUSED1000 0x00001000 /* set lease term (nqnfs) */
162 #define NFSMNT_READAHEAD 0x00002000 /* set read ahead */
163 #define NFSMNT_DEADTHRESH 0x00004000 /* set dead server retry thresh */
164 #define NFSMNT_RESVPORT 0x00008000 /* Allocate a reserved port */
165 #define NFSMNT_RDIRPLUS 0x00010000 /* Use Readdirplus for V3 */
166 #define NFSMNT_READDIRSIZE 0x00020000 /* Set readdir size */
167 #define NFSMNT_ACREGMIN 0x00040000
168 #define NFSMNT_ACREGMAX 0x00080000
169 #define NFSMNT_ACDIRMIN 0x00100000
170 #define NFSMNT_ACDIRMAX 0x00200000
171
172 #define NFSSTA_HASWRITEVERF 0x00040000 /* Has write verifier for V3 */
173 #define NFSSTA_GOTPATHCONF 0x00080000 /* Got the V3 pathconf info */
174 #define NFSSTA_GOTFSINFO 0x00100000 /* Got the V3 fsinfo */
175 #define NFSSTA_MNTD 0x00200000 /* Mnt server for mnt point */
176 #define NFSSTA_DISMINPROG 0x00400000 /* Dismount in progress */
177 #define NFSSTA_DISMNT 0x00800000 /* Dismounted */
178 #define NFSSTA_SNDLOCK 0x01000000 /* Send socket lock */
179 #define NFSSTA_WANTSND 0x02000000 /* Want above */
180 #define NFSSTA_RCVLOCK 0x04000000 /* Rcv socket lock */
181 #define NFSSTA_WANTRCV 0x08000000 /* Want above */
182 #define NFSSTA_WAITAUTH 0x10000000 /* Wait for authentication */
183 #define NFSSTA_HASAUTH 0x20000000 /* Has authenticator */
184 #define NFSSTA_WANTAUTH 0x40000000 /* Wants an authenticator */
185 #define NFSSTA_AUTHERR 0x80000000 /* Authentication error */
186
187 /*
188 * Structures for the nfssvc(2) syscall. Not that anyone but nfsd and mount_nfs
189 * should ever try and use it.
190 */
191 struct nfsd_args {
192 int sock; /* Socket to serve */
193 caddr_t name; /* Client addr for connection based sockets */
194 int namelen; /* Length of name */
195 };
196
197 struct nfsd_srvargs {
198 struct nfsd *nsd_nfsd; /* Pointer to in kernel nfsd struct */
199 uid_t nsd_uid; /* Effective uid mapped to cred */
200 u_int32_t nsd_haddr; /* Ip address of client */
201 struct ucred nsd_cr; /* Cred. uid maps to */
202 u_int nsd_authlen; /* Length of auth string (ret) */
203 u_char *nsd_authstr; /* Auth string (ret) */
204 u_int nsd_verflen; /* and the verfier */
205 u_char *nsd_verfstr;
206 struct timeval nsd_timestamp; /* timestamp from verifier */
207 u_int32_t nsd_ttl; /* credential ttl (sec) */
208 NFSKERBKEY_T nsd_key; /* Session key */
209 };
210
211 struct nfsd_cargs {
212 char *ncd_dirp; /* Mount dir path */
213 uid_t ncd_authuid; /* Effective uid */
214 int ncd_authtype; /* Type of authenticator */
215 u_int ncd_authlen; /* Length of authenticator string */
216 u_char *ncd_authstr; /* Authenticator string */
217 u_int ncd_verflen; /* and the verifier */
218 u_char *ncd_verfstr;
219 NFSKERBKEY_T ncd_key; /* Session key */
220 };
221
222 /*
223 * XXX to allow amd to include nfs.h without nfsproto.h
224 */
225 #ifdef NFS_NPROCS
226 /*
227 * Stats structure
228 */
229 struct nfsstats {
230 int attrcache_hits;
231 int attrcache_misses;
232 int lookupcache_hits;
233 int lookupcache_misses;
234 int direofcache_hits;
235 int direofcache_misses;
236 int biocache_reads;
237 int read_bios;
238 int read_physios;
239 int biocache_writes;
240 int write_bios;
241 int write_physios;
242 int biocache_readlinks;
243 int readlink_bios;
244 int biocache_readdirs;
245 int readdir_bios;
246 int rpccnt[NFS_NPROCS];
247 int rpcretries;
248 int srvrpccnt[NFS_NPROCS];
249 int srvrpc_errs;
250 int srv_errs;
251 int rpcrequests;
252 int rpctimeouts;
253 int rpcunexpected;
254 int rpcinvalid;
255 int srvcache_inproghits;
256 int srvcache_idemdonehits;
257 int srvcache_nonidemdonehits;
258 int srvcache_misses;
259 int srvnqnfs_leases;
260 int srvnqnfs_maxleases;
261 int srvnqnfs_getleases;
262 int srvvop_writes;
263 int accesscache_hits;
264 int accesscache_misses;
265 };
266 #endif
267
268 /*
269 * Flags for nfssvc() system call.
270 */
271 #define NFSSVC_BIOD 0x002
272 #define NFSSVC_NFSD 0x004
273 #define NFSSVC_ADDSOCK 0x008
274 #define NFSSVC_AUTHIN 0x010
275 #define NFSSVC_GOTAUTH 0x040
276 #define NFSSVC_AUTHINFAIL 0x080
277 #define NFSSVC_MNTD 0x100
278
279 /*
280 * fs.nfs sysctl(3) identifiers
281 */
282 #define NFS_NFSSTATS 1 /* struct: struct nfsstats */
283 #define NFS_NFSPRIVPORT 2 /* int: prohibit nfs to resvports */
284
285 #define FS_NFS_NAMES { \
286 { 0, 0 }, \
287 { "nfsstats", CTLTYPE_STRUCT }, \
288 { "nfsprivport", CTLTYPE_INT }, \
289 }
290
291 #ifdef _KERNEL
292
293 #ifdef MALLOC_DECLARE
294 MALLOC_DECLARE(M_NFSREQ);
295 MALLOC_DECLARE(M_NFSDIROFF);
296 MALLOC_DECLARE(M_NFSRVDESC);
297 MALLOC_DECLARE(M_NFSUID);
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 nfs_timer_handle;
308
309 struct uio;
310 struct buf;
311 struct bio;
312 struct vattr;
313 struct nlookupdata;
314
315 /*
316 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts.
317 * What should be in this set is open to debate, but I believe that since
318 * I/O system calls on ufs are never interrupted by signals the set should
319 * be minimal. My reasoning is that many current programs that use signals
320 * such as SIGALRM will not expect file I/O system calls to be interrupted
321 * by them and break.
322 */
323 #define NFSINT_SIGMASK(set) \
324 (SIGISMEMBER(set, SIGINT) || SIGISMEMBER(set, SIGTERM) || \
325 SIGISMEMBER(set, SIGHUP) || SIGISMEMBER(set, SIGKILL) || \
326 SIGISMEMBER(set, SIGQUIT))
327
328 /*
329 * Socket errors ignored for connectionless sockets??
330 * For now, ignore them all
331 */
332 #define NFSIGNORE_SOERROR(s, e) \
333 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \
334 ((s) & PR_CONNREQUIRED) == 0)
335
336 /*
337 * Nfs outstanding request list element
338 */
339 struct nfsreq {
340 TAILQ_ENTRY(nfsreq) r_chain;
341 struct mbuf *r_mreq;
342 struct mbuf *r_mrep;
343 struct mbuf *r_md;
344 caddr_t r_dpos;
345 struct nfsmount *r_nmp;
346 struct vnode *r_vp;
347 u_int32_t r_xid;
348 int r_flags; /* flags on request, see below */
349 int r_retry; /* max retransmission count */
350 int r_rexmit; /* current retrans count */
351 int r_timer; /* tick counter on reply */
352 u_int32_t r_procnum; /* NFS procedure number */
353 int r_rtt; /* RTT for rpc */
354 struct thread *r_td; /* Thread that did I/O system call */
355 };
356
357 /*
358 * Queue head for nfsreq's
359 */
360 extern TAILQ_HEAD(nfs_reqq, nfsreq) nfs_reqq;
361
362 /* Flag values for r_flags */
363 #define R_TIMING 0x0001 /* timing request (in mntp) */
364 #define R_SENT 0x0002 /* request has been sent */
365 #define R_SOFTTERM 0x0004 /* soft mnt, too many retries */
366 #define R_INTR 0x0008 /* intr mnt, signal pending */
367 #define R_SOCKERR 0x0010 /* Fatal error on socket */
368 #define R_TPRINTFMSG 0x0020 /* Did a tprintf msg. */
369 #define R_MUSTRESEND 0x0040 /* Must resend request */
370 #define R_GETONEREP 0x0080 /* Probe for one reply only */
371 #define R_MASKTIMER 0x0100 /* Timer should ignore this req */
372 #define R_LOCKED 0x0200 /* Locked by the timer */
373
374 /*
375 * A list of nfssvc_sock structures is maintained with all the sockets
376 * that require service by the nfsd.
377 * The nfsuid structs hang off of the nfssvc_sock structs in both lru
378 * and uid hash lists.
379 */
380 #ifndef NFS_UIDHASHSIZ
381 #define NFS_UIDHASHSIZ 29 /* Tune the size of nfssvc_sock with this */
382 #endif
383 #define NUIDHASH(sock, uid) \
384 (&(sock)->ns_uidhashtbl[(uid) % NFS_UIDHASHSIZ])
385 #ifndef NFS_WDELAYHASHSIZ
386 #define NFS_WDELAYHASHSIZ 16 /* and with this */
387 #endif
388 #define NWDELAYHASH(sock, f) \
389 (&(sock)->ns_wdelayhashtbl[(*((u_int32_t *)(f))) % NFS_WDELAYHASHSIZ])
390 #ifndef NFS_MUIDHASHSIZ
391 #define NFS_MUIDHASHSIZ 63 /* Tune the size of nfsmount with this */
392 #endif
393 #define NMUIDHASH(nmp, uid) \
394 (&(nmp)->nm_uidhashtbl[(uid) % NFS_MUIDHASHSIZ])
395 #define NFSNOHASH(fhsum) \
396 (&nfsnodehashtbl[(fhsum) & nfsnodehash])
397
398 /*
399 * Network address hash list element
400 */
401 union nethostaddr {
402 u_int32_t had_inetaddr;
403 struct sockaddr *had_nam;
404 };
405
406 struct nfsuid {
407 TAILQ_ENTRY(nfsuid) nu_lru; /* LRU chain */
408 LIST_ENTRY(nfsuid) nu_hash; /* Hash list */
409 int nu_flag; /* Flags */
410 union nethostaddr nu_haddr; /* Host addr. for dgram sockets */
411 struct ucred nu_cr; /* Cred uid mapped to */
412 int nu_expire; /* Expiry time (sec) */
413 struct timeval nu_timestamp; /* Kerb. timestamp */
414 u_int32_t nu_nickname; /* Nickname on server */
415 NFSKERBKEY_T nu_key; /* and session key */
416 };
417
418 #define nu_inetaddr nu_haddr.had_inetaddr
419 #define nu_nam nu_haddr.had_nam
420 /* Bits for nu_flag */
421 #define NU_INETADDR 0x1
422 #define NU_NAM 0x2
423 #define NU_NETFAM(u) (((u)->nu_flag & NU_INETADDR) ? AF_INET : AF_ISO)
424
425 struct nfsrv_rec {
426 STAILQ_ENTRY(nfsrv_rec) nr_link;
427 struct sockaddr *nr_address;
428 struct mbuf *nr_packet;
429 };
430
431 struct nfssvc_sock {
432 TAILQ_ENTRY(nfssvc_sock) ns_chain; /* List of all nfssvc_sock's */
433 TAILQ_HEAD(, nfsuid) ns_uidlruhead;
434 struct file *ns_fp;
435 struct socket *ns_so;
436 struct sockaddr *ns_nam;
437 struct mbuf *ns_raw;
438 struct mbuf *ns_rawend;
439 STAILQ_HEAD(, nfsrv_rec) ns_rec;
440 struct mbuf *ns_frag;
441 int ns_numrec;
442 int ns_flag;
443 int ns_solock;
444 int ns_cc;
445 int ns_reclen;
446 int ns_numuids;
447 u_int32_t ns_sref;
448 LIST_HEAD(, nfsrv_descript) ns_tq; /* Write gather lists */
449 LIST_HEAD(, nfsuid) ns_uidhashtbl[NFS_UIDHASHSIZ];
450 LIST_HEAD(nfsrvw_delayhash, nfsrv_descript) ns_wdelayhashtbl[NFS_WDELAYHASHSIZ];
451 };
452
453 /* Bits for "ns_flag" */
454 #define SLP_VALID 0x01
455 #define SLP_DOREC 0x02
456 #define SLP_NEEDQ 0x04
457 #define SLP_DISCONN 0x08
458 #define SLP_GETSTREAM 0x10
459 #define SLP_LASTFRAG 0x20
460 #define SLP_ALLFLAGS 0xff
461
462 extern TAILQ_HEAD(nfssvc_sockhead, nfssvc_sock) nfssvc_sockhead;
463 extern int nfssvc_sockhead_flag;
464 #define SLP_INIT 0x01
465 #define SLP_WANTINIT 0x02
466
467 /*
468 * One of these structures is allocated for each nfsd.
469 */
470 struct nfsd {
471 TAILQ_ENTRY(nfsd) nfsd_chain; /* List of all nfsd's */
472 int nfsd_flag; /* NFSD_ flags */
473 struct nfssvc_sock *nfsd_slp; /* Current socket */
474 int nfsd_authlen; /* Authenticator len */
475 u_char nfsd_authstr[RPCAUTH_MAXSIZ]; /* Authenticator data */
476 int nfsd_verflen; /* and the Verifier */
477 u_char nfsd_verfstr[RPCVERF_MAXSIZ];
478 struct thread *nfsd_td; /* thread ptr */
479 struct nfsrv_descript *nfsd_nd; /* Associated nfsrv_descript */
480 };
481
482 /* Bits for "nfsd_flag" */
483 #define NFSD_WAITING 0x01
484 #define NFSD_REQINPROG 0x02
485 #define NFSD_NEEDAUTH 0x04
486 #define NFSD_AUTHFAIL 0x08
487
488 /* Bits for loadattrcache */
489 #define NFS_LATTR_NOSHRINK 0x01
490 #define NFS_LATTR_NOMTIMECHECK 0x02
491
492 /*
493 * This structure is used by the server for describing each request.
494 * Some fields are used only when write request gathering is performed.
495 */
496 struct nfsrv_descript {
497 u_quad_t nd_time; /* Write deadline (usec) */
498 off_t nd_off; /* Start byte offset */
499 off_t nd_eoff; /* and end byte offset */
500 LIST_ENTRY(nfsrv_descript) nd_hash; /* Hash list */
501 LIST_ENTRY(nfsrv_descript) nd_tq; /* and timer list */
502 LIST_HEAD(,nfsrv_descript) nd_coalesce; /* coalesced writes */
503 struct mbuf *nd_mrep; /* Request mbuf list */
504 struct mbuf *nd_md; /* Current dissect mbuf */
505 struct mbuf *nd_mreq; /* Reply mbuf list */
506 struct sockaddr *nd_nam; /* and socket addr */
507 struct sockaddr *nd_nam2; /* return socket addr */
508 caddr_t nd_dpos; /* Current dissect pos */
509 u_int32_t nd_procnum; /* RPC # */
510 int nd_stable; /* storage type */
511 int nd_flag; /* nd_flag */
512 int nd_len; /* Length of this write */
513 int nd_repstat; /* Reply status */
514 u_int32_t nd_retxid; /* Reply xid */
515 struct timeval nd_starttime; /* Time RPC initiated */
516 fhandle_t nd_fh; /* File handle */
517 struct ucred nd_cr; /* Credentials */
518 };
519
520 /* Bits for "nd_flag" */
521 #define ND_READ 0x01
522 #define ND_WRITE 0x02
523 #define ND_CHECK 0x04
524 #define ND_NFSV3 0x08
525 #define ND_UNUSED010 0x10
526 #define ND_KERBNICK 0x20
527 #define ND_KERBFULL 0x40
528 #define ND_KERBAUTH (ND_KERBNICK | ND_KERBFULL)
529
530 extern TAILQ_HEAD(nfsd_head, nfsd) nfsd_head;
531 extern int nfsd_head_flag;
532 extern int nfsd_waiting;
533 #define NFSD_CHECKSLP 0x01
534
535 /*
536 * These macros compare nfsrv_descript structures.
537 */
538 #define NFSW_CONTIG(o, n) \
539 ((o)->nd_eoff >= (n)->nd_off && \
540 !bcmp((caddr_t)&(o)->nd_fh, (caddr_t)&(n)->nd_fh, NFSX_V3FH))
541
542 #define NFSW_SAMECRED(o, n) \
543 (((o)->nd_flag & ND_KERBAUTH) == ((n)->nd_flag & ND_KERBAUTH) && \
544 !bcmp((caddr_t)&(o)->nd_cr, (caddr_t)&(n)->nd_cr, \
545 sizeof (struct ucred)))
546
547 /*
548 * Defines for WebNFS
549 */
550
551 #define WEBNFS_ESC_CHAR '%'
552 #define WEBNFS_SPECCHAR_START 0x80
553
554 #define WEBNFS_NATIVE_CHAR 0x80
555 /*
556 * ..
557 * Possibly more here in the future.
558 */
559
560 /*
561 * Macro for converting escape characters in WebNFS pathnames.
562 * Should really be in libkern.
563 */
564
565 #define HEXTOC(c) \
566 ((c) >= 'a' ? ((c) - ('a' - 10)) : \
567 ((c) >= 'A' ? ((c) - ('A' - 10)) : ((c) - '0')))
568 #define HEXSTRTOI(p) \
569 ((HEXTOC(p[0]) << 4) + HEXTOC(p[1]))
570
571 #ifdef NFS_DEBUG
572
573 extern int nfs_debug;
574 #define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */
575 #define NFS_DEBUG_WG 2 /* server write gathering */
576 #define NFS_DEBUG_RC 4 /* server request caching */
577
578 #define NFS_DPF(cat, args) \
579 do { \
580 if (nfs_debug & NFS_DEBUG_##cat) kprintf args; \
581 } while (0)
582
583 #else
584
585 #define NFS_DPF(cat, args)
586
587 #endif
588
589 u_quad_t nfs_curusec (void);
590 int nfs_init (struct vfsconf *vfsp);
591 int nfs_uninit (struct vfsconf *vfsp);
592 int nfs_reply (struct nfsreq *);
593 int nfs_getreq (struct nfsrv_descript *,struct nfsd *,int);
594 int nfs_send (struct socket *, struct sockaddr *, struct mbuf *,
595 struct nfsreq *);
596 int nfs_rephead (int, struct nfsrv_descript *, struct nfssvc_sock *,
597 int, struct mbuf **, struct mbuf **, caddr_t *);
598 int nfs_sndlock (struct nfsreq *);
599 void nfs_sndunlock (struct nfsreq *);
600 int nfs_slplock (struct nfssvc_sock *, int);
601 void nfs_slpunlock (struct nfssvc_sock *);
602 int nfs_disct (struct mbuf **, caddr_t *, int, int, caddr_t *);
603 int nfs_vinvalbuf (struct vnode *, int, int);
604 int nfs_readrpc (struct vnode *, struct uio *);
605 int nfs_writerpc (struct vnode *, struct uio *, int *, int *);
606 int nfs_commit (struct vnode *vp, u_quad_t offset, int cnt,
607 struct thread *td);
608 int nfs_readdirrpc (struct vnode *, struct uio *);
609 int nfs_asyncio (struct vnode *vp, struct bio *, struct thread *);
610 int nfs_doio (struct vnode *vp, struct bio *, struct thread *);
611 int nfs_readlinkrpc (struct vnode *, struct uio *);
612 int nfs_sigintr (struct nfsmount *, struct nfsreq *, struct thread *);
613 int nfs_readdirplusrpc (struct vnode *, struct uio *);
614 int nfsm_disct (struct mbuf **, caddr_t *, int, int, caddr_t *);
615 void nfsm_srvfattr (struct nfsrv_descript *, struct vattr *,
616 struct nfs_fattr *);
617 void nfsm_srvwcc (struct nfsrv_descript *, int, struct vattr *, int,
618 struct vattr *, struct mbuf **, char **);
619 void nfsm_srvpostopattr (struct nfsrv_descript *, int, struct vattr *,
620 struct mbuf **, char **);
621 int netaddr_match (int, union nethostaddr *, struct sockaddr *);
622 int nfs_request (struct vnode *, struct mbuf *, int, struct thread *,
623 struct ucred *, struct mbuf **, struct mbuf **,
624 caddr_t *);
625 int nfs_loadattrcache (struct vnode **, struct mbuf **, caddr_t *,
626 struct vattr *, int);
627 int nfs_namei (struct nlookupdata *, struct ucred *, int,
628 struct vnode **, struct vnode **, fhandle_t *, int,
629 struct nfssvc_sock *, struct sockaddr *, struct mbuf **,
630 caddr_t *, struct vnode **, struct thread *, int, int);
631 void nfsm_adj (struct mbuf *, int, int);
632 int nfsm_mbuftouio (struct mbuf **, struct uio *, int, caddr_t *);
633 void nfsrv_initcache (void);
634 int nfs_getauth (struct nfsmount *, struct nfsreq *, struct ucred *,
635 char **, int *, char *, int *, NFSKERBKEY_T);
636 int nfs_getnickauth (struct nfsmount *, struct ucred *, char **,
637 int *, char *, int);
638 int nfs_savenickauth (struct nfsmount *, struct ucred *, int,
639 NFSKERBKEY_T, struct mbuf **, char **,
640 struct mbuf *);
641 int nfs_adv (struct mbuf **, caddr_t *, int, int);
642 void nfs_nhinit (void);
643 int nfs_nmcancelreqs (struct nfsmount *);
644 void nfs_timer (void*);
645 int nfsrv_dorec (struct nfssvc_sock *, struct nfsd *,
646 struct nfsrv_descript **);
647 int nfsrv_getcache (struct nfsrv_descript *, struct nfssvc_sock *,
648 struct mbuf **);
649 void nfsrv_updatecache (struct nfsrv_descript *, int, struct mbuf *);
650 void nfsrv_cleancache (void);
651 int nfs_connect (struct nfsmount *, struct nfsreq *);
652 void nfs_disconnect (struct nfsmount *);
653 void nfs_safedisconnect (struct nfsmount *);
654 int nfs_getattrcache (struct vnode *, struct vattr *);
655 int nfsm_strtmbuf (struct mbuf **, char **, const char *, long);
656 int nfs_bioread (struct vnode *, struct uio *, int);
657 int nfsm_uiotombuf (struct uio *, struct mbuf **, int, caddr_t *);
658 void nfsrv_init (int);
659 void nfs_clearcommit (struct mount *);
660 int nfsrv_errmap (struct nfsrv_descript *, int);
661 void nfsrvw_sort (gid_t *, int);
662 void nfsrv_setcred (struct ucred *, struct ucred *);
663 int nfsrv_object_create (struct vnode *);
664 void nfsrv_wakenfsd (struct nfssvc_sock *slp, int nparallel);
665 int nfsrv_writegather (struct nfsrv_descript **, struct nfssvc_sock *,
666 struct thread *, struct mbuf **);
667 int nfs_fsinfo (struct nfsmount *, struct vnode *, struct thread *p);
668
669 int nfsrv3_access (struct nfsrv_descript *nfsd,
670 struct nfssvc_sock *slp,
671 struct thread *td, struct mbuf **mrq);
672 int nfsrv_commit (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
673 struct thread *td, struct mbuf **mrq);
674 int nfsrv_create (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
675 struct thread *td, struct mbuf **mrq);
676 int nfsrv_fhtovp (fhandle_t *, int, struct vnode **, struct ucred *,
677 struct nfssvc_sock *, struct sockaddr *, int *,
678 int, int);
679 int nfsrv_setpublicfs (struct mount *, struct netexport *,
680 struct export_args *);
681 int nfs_ispublicfh (fhandle_t *);
682 int nfsrv_fsinfo (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
683 struct thread *td, struct mbuf **mrq);
684 int nfsrv_getattr (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
685 struct thread *td, struct mbuf **mrq);
686 int nfsrv_link (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
687 struct thread *td, struct mbuf **mrq);
688 int nfsrv_lookup (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
689 struct thread *td, struct mbuf **mrq);
690 int nfsrv_mkdir (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
691 struct thread *td, struct mbuf **mrq);
692 int nfsrv_mknod (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
693 struct thread *td, struct mbuf **mrq);
694 int nfsrv_noop (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
695 struct thread *td, struct mbuf **mrq);
696 int nfsrv_null (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
697 struct thread *td, struct mbuf **mrq);
698 int nfsrv_pathconf (struct nfsrv_descript *nfsd,
699 struct nfssvc_sock *slp, struct thread *td,
700 struct mbuf **mrq);
701 int nfsrv_read (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
702 struct thread *td, struct mbuf **mrq);
703 int nfsrv_readdir (struct nfsrv_descript *nfsd,
704 struct nfssvc_sock *slp,
705 struct thread *td, struct mbuf **mrq);
706 int nfsrv_readdirplus (struct nfsrv_descript *nfsd,
707 struct nfssvc_sock *slp, struct thread *td,
708 struct mbuf **mrq);
709 int nfsrv_readlink (struct nfsrv_descript *nfsd,
710 struct nfssvc_sock *slp, struct thread *td,
711 struct mbuf **mrq);
712 int nfsrv_remove (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
713 struct thread *td, struct mbuf **mrq);
714 int nfsrv_rename (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
715 struct thread *td, struct mbuf **mrq);
716 int nfsrv_rmdir (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
717 struct thread *td, struct mbuf **mrq);
718 int nfsrv_setattr (struct nfsrv_descript *nfsd,
719 struct nfssvc_sock *slp,
720 struct thread *td, struct mbuf **mrq);
721 int nfsrv_statfs (struct nfsrv_descript *nfsd,
722 struct nfssvc_sock *slp,
723 struct thread *td, struct mbuf **mrq);
724 int nfsrv_symlink (struct nfsrv_descript *nfsd,
725 struct nfssvc_sock *slp,
726 struct thread *td, struct mbuf **mrq);
727 int nfsrv_write (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
728 struct thread *td, struct mbuf **mrq);
729 void nfsrv_rcv (struct socket *so, void *arg, int waitflag);
730 void nfsrv_slpderef (struct nfssvc_sock *slp);
731 int nfs_meta_setsize (struct vnode *vp, struct thread *td, u_quad_t nsize);
732 int nfs_clientd(struct nfsmount *nmp, struct ucred *cred,
733 struct nfsd_cargs *ncd, int flag, caddr_t argp,
734 struct thread *td);
735
736
737 #endif /* _KERNEL */
738
739 #endif
DragonFly BSD