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
| 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 * $Id: nfs.h,v 1.45 1999/02/25 00:03:50 peter Exp $
| 37 * $Id: nfs.h,v 1.46 1999/05/02 23:56:23 alc Exp $
|
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 * Expected allocation sizes for major data structures. If the actual size
118 * of the structure exceeds these sizes, then malloc() will be allocating
119 * almost twice the memory required. This is used in nfs_init() to warn
120 * the sysadmin that the size of a structure should be reduced.
121 * (These sizes are always a power of 2. If the kernel malloc() changes
122 * to one that does not allocate space in powers of 2 size, then this all
123 * becomes bunk!)
124 */
125#define NFS_SVCALLOC 256
126#define NFS_UIDALLOC 128
127
128/*
129 * Arguments to mount NFS
130 */
131#define NFS_ARGSVERSION 3 /* change when nfs_args changes */
132struct nfs_args {
133 int version; /* args structure version number */
134 struct sockaddr *addr; /* file server address */
135 int addrlen; /* length of address */
136 int sotype; /* Socket type */
137 int proto; /* and Protocol */
138 u_char *fh; /* File handle to be mounted */
139 int fhsize; /* Size, in bytes, of fh */
140 int flags; /* flags */
141 int wsize; /* write size in bytes */
142 int rsize; /* read size in bytes */
143 int readdirsize; /* readdir size in bytes */
144 int timeo; /* initial timeout in .1 secs */
145 int retrans; /* times to retry send */
146 int maxgrouplist; /* Max. size of group list */
147 int readahead; /* # of blocks to readahead */
148 int leaseterm; /* Term (sec) of lease */
149 int deadthresh; /* Retrans threshold */
150 char *hostname; /* server's name */
151 int acregmin; /* cache attrs for reg files min time */
152 int acregmax; /* cache attrs for reg files max time */
153 int acdirmin; /* cache attrs for dirs min time */
154 int acdirmax; /* cache attrs for dirs max time */
155};
156
157/*
158 * NFS mount option flags
159 */
160#define NFSMNT_SOFT 0x00000001 /* soft mount (hard is default) */
161#define NFSMNT_WSIZE 0x00000002 /* set write size */
162#define NFSMNT_RSIZE 0x00000004 /* set read size */
163#define NFSMNT_TIMEO 0x00000008 /* set initial timeout */
164#define NFSMNT_RETRANS 0x00000010 /* set number of request retries */
165#define NFSMNT_MAXGRPS 0x00000020 /* set maximum grouplist size */
166#define NFSMNT_INT 0x00000040 /* allow interrupts on hard mount */
167#define NFSMNT_NOCONN 0x00000080 /* Don't Connect the socket */
168#define NFSMNT_NQNFS 0x00000100 /* Use Nqnfs protocol */
169#define NFSMNT_NFSV3 0x00000200 /* Use NFS Version 3 protocol */
170#define NFSMNT_KERB 0x00000400 /* Use Kerberos authentication */
171#define NFSMNT_DUMBTIMR 0x00000800 /* Don't estimate rtt dynamically */
172#define NFSMNT_LEASETERM 0x00001000 /* set lease term (nqnfs) */
173#define NFSMNT_READAHEAD 0x00002000 /* set read ahead */
174#define NFSMNT_DEADTHRESH 0x00004000 /* set dead server retry thresh */
175#define NFSMNT_RESVPORT 0x00008000 /* Allocate a reserved port */
176#define NFSMNT_RDIRPLUS 0x00010000 /* Use Readdirplus for V3 */
177#define NFSMNT_READDIRSIZE 0x00020000 /* Set readdir size */
178#define NFSMNT_ACREGMIN 0x00040000
179#define NFSMNT_ACREGMAX 0x00080000
180#define NFSMNT_ACDIRMIN 0x00100000
181#define NFSMNT_ACDIRMAX 0x00200000
182
183#define NFSSTA_HASWRITEVERF 0x00040000 /* Has write verifier for V3 */
184#define NFSSTA_GOTPATHCONF 0x00080000 /* Got the V3 pathconf info */
185#define NFSSTA_GOTFSINFO 0x00100000 /* Got the V3 fsinfo */
186#define NFSSTA_MNTD 0x00200000 /* Mnt server for mnt point */
187#define NFSSTA_DISMINPROG 0x00400000 /* Dismount in progress */
188#define NFSSTA_DISMNT 0x00800000 /* Dismounted */
189#define NFSSTA_SNDLOCK 0x01000000 /* Send socket lock */
190#define NFSSTA_WANTSND 0x02000000 /* Want above */
191#define NFSSTA_RCVLOCK 0x04000000 /* Rcv socket lock */
192#define NFSSTA_WANTRCV 0x08000000 /* Want above */
193#define NFSSTA_WAITAUTH 0x10000000 /* Wait for authentication */
194#define NFSSTA_HASAUTH 0x20000000 /* Has authenticator */
195#define NFSSTA_WANTAUTH 0x40000000 /* Wants an authenticator */
196#define NFSSTA_AUTHERR 0x80000000 /* Authentication error */
197
198/*
199 * Structures for the nfssvc(2) syscall. Not that anyone but nfsd and mount_nfs
200 * should ever try and use it.
201 */
202struct nfsd_args {
203 int sock; /* Socket to serve */
204 caddr_t name; /* Client addr for connection based sockets */
205 int namelen; /* Length of name */
206};
207
208struct nfsd_srvargs {
209 struct nfsd *nsd_nfsd; /* Pointer to in kernel nfsd struct */
210 uid_t nsd_uid; /* Effective uid mapped to cred */
211 u_int32_t nsd_haddr; /* Ip address of client */
212 struct ucred nsd_cr; /* Cred. uid maps to */
213 int nsd_authlen; /* Length of auth string (ret) */
214 u_char *nsd_authstr; /* Auth string (ret) */
215 int nsd_verflen; /* and the verfier */
216 u_char *nsd_verfstr;
217 struct timeval nsd_timestamp; /* timestamp from verifier */
218 u_int32_t nsd_ttl; /* credential ttl (sec) */
219 NFSKERBKEY_T nsd_key; /* Session key */
220};
221
222struct nfsd_cargs {
223 char *ncd_dirp; /* Mount dir path */
224 uid_t ncd_authuid; /* Effective uid */
225 int ncd_authtype; /* Type of authenticator */
226 int ncd_authlen; /* Length of authenticator string */
227 u_char *ncd_authstr; /* Authenticator string */
228 int ncd_verflen; /* and the verifier */
229 u_char *ncd_verfstr;
230 NFSKERBKEY_T ncd_key; /* Session key */
231};
232
233/*
234 * XXX to allow amd to include nfs.h without nfsproto.h
235 */
236#ifdef NFS_NPROCS
237/*
238 * Stats structure
239 */
240struct nfsstats {
241 int attrcache_hits;
242 int attrcache_misses;
243 int lookupcache_hits;
244 int lookupcache_misses;
245 int direofcache_hits;
246 int direofcache_misses;
247 int biocache_reads;
248 int read_bios;
249 int read_physios;
250 int biocache_writes;
251 int write_bios;
252 int write_physios;
253 int biocache_readlinks;
254 int readlink_bios;
255 int biocache_readdirs;
256 int readdir_bios;
257 int rpccnt[NFS_NPROCS];
258 int rpcretries;
259 int srvrpccnt[NFS_NPROCS];
260 int srvrpc_errs;
261 int srv_errs;
262 int rpcrequests;
263 int rpctimeouts;
264 int rpcunexpected;
265 int rpcinvalid;
266 int srvcache_inproghits;
267 int srvcache_idemdonehits;
268 int srvcache_nonidemdonehits;
269 int srvcache_misses;
270 int srvnqnfs_leases;
271 int srvnqnfs_maxleases;
272 int srvnqnfs_getleases;
273 int srvvop_writes;
274};
275#endif
276
277/*
278 * Flags for nfssvc() system call.
279 */
280#define NFSSVC_BIOD 0x002
281#define NFSSVC_NFSD 0x004
282#define NFSSVC_ADDSOCK 0x008
283#define NFSSVC_AUTHIN 0x010
284#define NFSSVC_GOTAUTH 0x040
285#define NFSSVC_AUTHINFAIL 0x080
286#define NFSSVC_MNTD 0x100
287
288/*
289 * fs.nfs sysctl(3) identifiers
290 */
291#define NFS_NFSSTATS 1 /* struct: struct nfsstats */
292#define NFS_NFSPRIVPORT 2 /* int: prohibit nfs to resvports */
293
294#define FS_NFS_NAMES { \
295 { 0, 0 }, \
296 { "nfsstats", CTLTYPE_STRUCT }, \
297 { "nfsprivport", CTLTYPE_INT }, \
298}
299
300#ifdef KERNEL
301
302#ifdef MALLOC_DECLARE
303MALLOC_DECLARE(M_NFSREQ);
304MALLOC_DECLARE(M_NFSDIROFF);
305MALLOC_DECLARE(M_NFSRVDESC);
306MALLOC_DECLARE(M_NFSUID);
307MALLOC_DECLARE(M_NQLEASE);
308MALLOC_DECLARE(M_NFSD);
309MALLOC_DECLARE(M_NFSBIGFH);
310MALLOC_DECLARE(M_NFSHASH);
311#endif
312
313#ifdef ZONE_INTERRUPT
314extern vm_zone_t nfsmount_zone;
315#endif
316
317extern struct callout_handle nfs_timer_handle;
318
319struct uio; struct buf; struct vattr; struct nameidata; /* XXX */
320
321/*
322 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts.
323 * What should be in this set is open to debate, but I believe that since
324 * I/O system calls on ufs are never interrupted by signals the set should
325 * be minimal. My reasoning is that many current programs that use signals
326 * such as SIGALRM will not expect file I/O system calls to be interrupted
327 * by them and break.
328 */
329#define NFSINT_SIGMASK (sigmask(SIGINT)|sigmask(SIGTERM)|sigmask(SIGKILL)| \
330 sigmask(SIGHUP)|sigmask(SIGQUIT))
331
332/*
333 * Socket errors ignored for connectionless sockets??
334 * For now, ignore them all
335 */
336#define NFSIGNORE_SOERROR(s, e) \
337 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \
338 ((s) & PR_CONNREQUIRED) == 0)
339
340/*
341 * Nfs outstanding request list element
342 */
343struct nfsreq {
344 TAILQ_ENTRY(nfsreq) r_chain;
345 struct mbuf *r_mreq;
346 struct mbuf *r_mrep;
347 struct mbuf *r_md;
348 caddr_t r_dpos;
349 struct nfsmount *r_nmp;
350 struct vnode *r_vp;
351 u_int32_t r_xid;
352 int r_flags; /* flags on request, see below */
353 int r_retry; /* max retransmission count */
354 int r_rexmit; /* current retrans count */
355 int r_timer; /* tick counter on reply */
356 u_int32_t r_procnum; /* NFS procedure number */
357 int r_rtt; /* RTT for rpc */
358 struct proc *r_procp; /* Proc that did I/O system call */
359};
360
361/*
362 * Queue head for nfsreq's
363 */
364extern TAILQ_HEAD(nfs_reqq, nfsreq) nfs_reqq;
365
366/* Flag values for r_flags */
367#define R_TIMING 0x01 /* timing request (in mntp) */
368#define R_SENT 0x02 /* request has been sent */
369#define R_SOFTTERM 0x04 /* soft mnt, too many retries */
370#define R_INTR 0x08 /* intr mnt, signal pending */
371#define R_SOCKERR 0x10 /* Fatal error on socket */
372#define R_TPRINTFMSG 0x20 /* Did a tprintf msg. */
373#define R_MUSTRESEND 0x40 /* Must resend request */
374#define R_GETONEREP 0x80 /* Probe for one reply only */
375
376/*
377 * A list of nfssvc_sock structures is maintained with all the sockets
378 * that require service by the nfsd.
379 * The nfsuid structs hang off of the nfssvc_sock structs in both lru
380 * and uid hash lists.
381 */
382#ifndef NFS_UIDHASHSIZ
383#define NFS_UIDHASHSIZ 29 /* Tune the size of nfssvc_sock with this */
384#endif
385#define NUIDHASH(sock, uid) \
386 (&(sock)->ns_uidhashtbl[(uid) % NFS_UIDHASHSIZ])
387#ifndef NFS_WDELAYHASHSIZ
388#define NFS_WDELAYHASHSIZ 16 /* and with this */
389#endif
390#define NWDELAYHASH(sock, f) \
391 (&(sock)->ns_wdelayhashtbl[(*((u_int32_t *)(f))) % NFS_WDELAYHASHSIZ])
392#ifndef NFS_MUIDHASHSIZ
393#define NFS_MUIDHASHSIZ 63 /* Tune the size of nfsmount with this */
394#endif
395#define NMUIDHASH(nmp, uid) \
396 (&(nmp)->nm_uidhashtbl[(uid) % NFS_MUIDHASHSIZ])
397#define NFSNOHASH(fhsum) \
398 (&nfsnodehashtbl[(fhsum) & nfsnodehash])
399
400/*
401 * Network address hash list element
402 */
403union nethostaddr {
404 u_int32_t had_inetaddr;
405 struct sockaddr *had_nam;
406};
407
408struct nfsuid {
409 TAILQ_ENTRY(nfsuid) nu_lru; /* LRU chain */
410 LIST_ENTRY(nfsuid) nu_hash; /* Hash list */
411 int nu_flag; /* Flags */
412 union nethostaddr nu_haddr; /* Host addr. for dgram sockets */
413 struct ucred nu_cr; /* Cred uid mapped to */
414 int nu_expire; /* Expiry time (sec) */
415 struct timeval nu_timestamp; /* Kerb. timestamp */
416 u_int32_t nu_nickname; /* Nickname on server */
417 NFSKERBKEY_T nu_key; /* and session key */
418};
419
420#define nu_inetaddr nu_haddr.had_inetaddr
421#define nu_nam nu_haddr.had_nam
422/* Bits for nu_flag */
423#define NU_INETADDR 0x1
424#define NU_NAM 0x2
425#define NU_NETFAM(u) (((u)->nu_flag & NU_INETADDR) ? AF_INET : AF_ISO)
426
427struct nfsrv_rec {
428 STAILQ_ENTRY(nfsrv_rec) nr_link;
429 struct sockaddr *nr_address;
430 struct mbuf *nr_packet;
431};
432
433struct nfssvc_sock {
434 TAILQ_ENTRY(nfssvc_sock) ns_chain; /* List of all nfssvc_sock's */
435 TAILQ_HEAD(, nfsuid) ns_uidlruhead;
436 struct file *ns_fp;
437 struct socket *ns_so;
438 struct sockaddr *ns_nam;
439 struct mbuf *ns_raw;
440 struct mbuf *ns_rawend;
441 STAILQ_HEAD(, nfsrv_rec) ns_rec;
442 struct mbuf *ns_frag;
443 int ns_flag;
444 int ns_solock;
445 int ns_cc;
446 int ns_reclen;
447 int ns_numuids;
448 u_int32_t ns_sref;
449 LIST_HEAD(, nfsrv_descript) ns_tq; /* Write gather lists */
450 LIST_HEAD(, nfsuid) ns_uidhashtbl[NFS_UIDHASHSIZ];
451 LIST_HEAD(nfsrvw_delayhash, nfsrv_descript) ns_wdelayhashtbl[NFS_WDELAYHASHSIZ];
452};
453
454/* Bits for "ns_flag" */
455#define SLP_VALID 0x01
456#define SLP_DOREC 0x02
457#define SLP_NEEDQ 0x04
458#define SLP_DISCONN 0x08
459#define SLP_GETSTREAM 0x10
460#define SLP_LASTFRAG 0x20
461#define SLP_ALLFLAGS 0xff
462
463extern TAILQ_HEAD(nfssvc_sockhead, nfssvc_sock) nfssvc_sockhead;
464extern int nfssvc_sockhead_flag;
465#define SLP_INIT 0x01
466#define SLP_WANTINIT 0x02
467
468/*
469 * One of these structures is allocated for each nfsd.
470 */
471struct nfsd {
472 TAILQ_ENTRY(nfsd) nfsd_chain; /* List of all nfsd's */
473 int nfsd_flag; /* NFSD_ flags */
474 struct nfssvc_sock *nfsd_slp; /* Current socket */
475 int nfsd_authlen; /* Authenticator len */
476 u_char nfsd_authstr[RPCAUTH_MAXSIZ]; /* Authenticator data */
477 int nfsd_verflen; /* and the Verifier */
478 u_char nfsd_verfstr[RPCVERF_MAXSIZ];
479 struct proc *nfsd_procp; /* Proc ptr */
480 struct nfsrv_descript *nfsd_nd; /* Associated nfsrv_descript */
481};
482
483/* Bits for "nfsd_flag" */
484#define NFSD_WAITING 0x01
485#define NFSD_REQINPROG 0x02
486#define NFSD_NEEDAUTH 0x04
487#define NFSD_AUTHFAIL 0x08
488
489/*
490 * This structure is used by the server for describing each request.
491 * Some fields are used only when write request gathering is performed.
492 */
493struct nfsrv_descript {
494 u_quad_t nd_time; /* Write deadline (usec) */
495 off_t nd_off; /* Start byte offset */
496 off_t nd_eoff; /* and end byte offset */
497 LIST_ENTRY(nfsrv_descript) nd_hash; /* Hash list */
498 LIST_ENTRY(nfsrv_descript) nd_tq; /* and timer list */
499 LIST_HEAD(,nfsrv_descript) nd_coalesce; /* coalesced writes */
500 struct mbuf *nd_mrep; /* Request mbuf list */
501 struct mbuf *nd_md; /* Current dissect mbuf */
502 struct mbuf *nd_mreq; /* Reply mbuf list */
503 struct sockaddr *nd_nam; /* and socket addr */
504 struct sockaddr *nd_nam2; /* return socket addr */
505 caddr_t nd_dpos; /* Current dissect pos */
506 u_int32_t nd_procnum; /* RPC # */
507 int nd_stable; /* storage type */
508 int nd_flag; /* nd_flag */
509 int nd_len; /* Length of this write */
510 int nd_repstat; /* Reply status */
511 u_int32_t nd_retxid; /* Reply xid */
512 u_int32_t nd_duration; /* Lease duration */
513 struct timeval nd_starttime; /* Time RPC initiated */
514 fhandle_t nd_fh; /* File handle */
515 struct ucred nd_cr; /* Credentials */
516};
517
518/* Bits for "nd_flag" */
519#define ND_READ LEASE_READ
520#define ND_WRITE LEASE_WRITE
521#define ND_CHECK 0x04
522#define ND_LEASE (ND_READ | ND_WRITE | ND_CHECK)
523#define ND_NFSV3 0x08
524#define ND_NQNFS 0x10
525#define ND_KERBNICK 0x20
526#define ND_KERBFULL 0x40
527#define ND_KERBAUTH (ND_KERBNICK | ND_KERBFULL)
528
529extern TAILQ_HEAD(nfsd_head, nfsd) nfsd_head;
530extern int nfsd_head_flag;
531#define NFSD_CHECKSLP 0x01
532
533/*
534 * These macros compare nfsrv_descript structures.
535 */
536#define NFSW_CONTIG(o, n) \
537 ((o)->nd_eoff >= (n)->nd_off && \
538 !bcmp((caddr_t)&(o)->nd_fh, (caddr_t)&(n)->nd_fh, NFSX_V3FH))
539
540#define NFSW_SAMECRED(o, n) \
541 (((o)->nd_flag & ND_KERBAUTH) == ((n)->nd_flag & ND_KERBAUTH) && \
542 !bcmp((caddr_t)&(o)->nd_cr, (caddr_t)&(n)->nd_cr, \
543 sizeof (struct ucred)))
544
545/*
546 * Defines for WebNFS
547 */
548
549#define WEBNFS_ESC_CHAR '%'
550#define WEBNFS_SPECCHAR_START 0x80
551
552#define WEBNFS_NATIVE_CHAR 0x80
553/*
554 * ..
555 * Possibly more here in the future.
556 */
557
558/*
559 * Macro for converting escape characters in WebNFS pathnames.
560 * Should really be in libkern.
561 */
562
563#define HEXTOC(c) \
564 ((c) >= 'a' ? ((c) - ('a' - 10)) : \
565 ((c) >= 'A' ? ((c) - ('A' - 10)) : ((c) - '0')))
566#define HEXSTRTOI(p) \
567 ((HEXTOC(p[0]) << 4) + HEXTOC(p[1]))
568
569#ifdef NFS_DEBUG
570
571extern int nfs_debug;
572#define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */
573#define NFS_DEBUG_WG 2 /* server write gathering */
574#define NFS_DEBUG_RC 4 /* server request caching */
575
576#define NFS_DPF(cat, args) \
577 do { \
578 if (nfs_debug & NFS_DEBUG_##cat) printf args; \
579 } while (0)
580
581#else
582
583#define NFS_DPF(cat, args)
584
585#endif
586
587u_quad_t nfs_curusec __P((void));
588int nfs_init __P((struct vfsconf *vfsp));
589int nfs_uninit __P((struct vfsconf *vfsp));
590int nfs_reply __P((struct nfsreq *));
591int nfs_getreq __P((struct nfsrv_descript *,struct nfsd *,int));
592int nfs_send __P((struct socket *, struct sockaddr *, struct mbuf *,
593 struct nfsreq *));
594int nfs_rephead __P((int, struct nfsrv_descript *, struct nfssvc_sock *,
595 int, int, u_quad_t *, struct mbuf **, struct mbuf **,
596 caddr_t *));
597int nfs_sndlock __P((struct nfsreq *));
598void nfs_sndunlock __P((struct nfsreq *));
599int nfs_slplock __P((struct nfssvc_sock *, int));
600void nfs_slpunlock __P((struct nfssvc_sock *));
601int nfs_disct __P((struct mbuf **, caddr_t *, int, int, caddr_t *));
602int nfs_vinvalbuf __P((struct vnode *, int, struct ucred *, struct proc *,
603 int));
604int nfs_readrpc __P((struct vnode *, struct uio *, struct ucred *));
605int nfs_writerpc __P((struct vnode *, struct uio *, struct ucred *, int *,
606 int *));
607int nfs_readdirrpc __P((struct vnode *, struct uio *, struct ucred *));
| 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 * Expected allocation sizes for major data structures. If the actual size
118 * of the structure exceeds these sizes, then malloc() will be allocating
119 * almost twice the memory required. This is used in nfs_init() to warn
120 * the sysadmin that the size of a structure should be reduced.
121 * (These sizes are always a power of 2. If the kernel malloc() changes
122 * to one that does not allocate space in powers of 2 size, then this all
123 * becomes bunk!)
124 */
125#define NFS_SVCALLOC 256
126#define NFS_UIDALLOC 128
127
128/*
129 * Arguments to mount NFS
130 */
131#define NFS_ARGSVERSION 3 /* change when nfs_args changes */
132struct nfs_args {
133 int version; /* args structure version number */
134 struct sockaddr *addr; /* file server address */
135 int addrlen; /* length of address */
136 int sotype; /* Socket type */
137 int proto; /* and Protocol */
138 u_char *fh; /* File handle to be mounted */
139 int fhsize; /* Size, in bytes, of fh */
140 int flags; /* flags */
141 int wsize; /* write size in bytes */
142 int rsize; /* read size in bytes */
143 int readdirsize; /* readdir size in bytes */
144 int timeo; /* initial timeout in .1 secs */
145 int retrans; /* times to retry send */
146 int maxgrouplist; /* Max. size of group list */
147 int readahead; /* # of blocks to readahead */
148 int leaseterm; /* Term (sec) of lease */
149 int deadthresh; /* Retrans threshold */
150 char *hostname; /* server's name */
151 int acregmin; /* cache attrs for reg files min time */
152 int acregmax; /* cache attrs for reg files max time */
153 int acdirmin; /* cache attrs for dirs min time */
154 int acdirmax; /* cache attrs for dirs max time */
155};
156
157/*
158 * NFS mount option flags
159 */
160#define NFSMNT_SOFT 0x00000001 /* soft mount (hard is default) */
161#define NFSMNT_WSIZE 0x00000002 /* set write size */
162#define NFSMNT_RSIZE 0x00000004 /* set read size */
163#define NFSMNT_TIMEO 0x00000008 /* set initial timeout */
164#define NFSMNT_RETRANS 0x00000010 /* set number of request retries */
165#define NFSMNT_MAXGRPS 0x00000020 /* set maximum grouplist size */
166#define NFSMNT_INT 0x00000040 /* allow interrupts on hard mount */
167#define NFSMNT_NOCONN 0x00000080 /* Don't Connect the socket */
168#define NFSMNT_NQNFS 0x00000100 /* Use Nqnfs protocol */
169#define NFSMNT_NFSV3 0x00000200 /* Use NFS Version 3 protocol */
170#define NFSMNT_KERB 0x00000400 /* Use Kerberos authentication */
171#define NFSMNT_DUMBTIMR 0x00000800 /* Don't estimate rtt dynamically */
172#define NFSMNT_LEASETERM 0x00001000 /* set lease term (nqnfs) */
173#define NFSMNT_READAHEAD 0x00002000 /* set read ahead */
174#define NFSMNT_DEADTHRESH 0x00004000 /* set dead server retry thresh */
175#define NFSMNT_RESVPORT 0x00008000 /* Allocate a reserved port */
176#define NFSMNT_RDIRPLUS 0x00010000 /* Use Readdirplus for V3 */
177#define NFSMNT_READDIRSIZE 0x00020000 /* Set readdir size */
178#define NFSMNT_ACREGMIN 0x00040000
179#define NFSMNT_ACREGMAX 0x00080000
180#define NFSMNT_ACDIRMIN 0x00100000
181#define NFSMNT_ACDIRMAX 0x00200000
182
183#define NFSSTA_HASWRITEVERF 0x00040000 /* Has write verifier for V3 */
184#define NFSSTA_GOTPATHCONF 0x00080000 /* Got the V3 pathconf info */
185#define NFSSTA_GOTFSINFO 0x00100000 /* Got the V3 fsinfo */
186#define NFSSTA_MNTD 0x00200000 /* Mnt server for mnt point */
187#define NFSSTA_DISMINPROG 0x00400000 /* Dismount in progress */
188#define NFSSTA_DISMNT 0x00800000 /* Dismounted */
189#define NFSSTA_SNDLOCK 0x01000000 /* Send socket lock */
190#define NFSSTA_WANTSND 0x02000000 /* Want above */
191#define NFSSTA_RCVLOCK 0x04000000 /* Rcv socket lock */
192#define NFSSTA_WANTRCV 0x08000000 /* Want above */
193#define NFSSTA_WAITAUTH 0x10000000 /* Wait for authentication */
194#define NFSSTA_HASAUTH 0x20000000 /* Has authenticator */
195#define NFSSTA_WANTAUTH 0x40000000 /* Wants an authenticator */
196#define NFSSTA_AUTHERR 0x80000000 /* Authentication error */
197
198/*
199 * Structures for the nfssvc(2) syscall. Not that anyone but nfsd and mount_nfs
200 * should ever try and use it.
201 */
202struct nfsd_args {
203 int sock; /* Socket to serve */
204 caddr_t name; /* Client addr for connection based sockets */
205 int namelen; /* Length of name */
206};
207
208struct nfsd_srvargs {
209 struct nfsd *nsd_nfsd; /* Pointer to in kernel nfsd struct */
210 uid_t nsd_uid; /* Effective uid mapped to cred */
211 u_int32_t nsd_haddr; /* Ip address of client */
212 struct ucred nsd_cr; /* Cred. uid maps to */
213 int nsd_authlen; /* Length of auth string (ret) */
214 u_char *nsd_authstr; /* Auth string (ret) */
215 int nsd_verflen; /* and the verfier */
216 u_char *nsd_verfstr;
217 struct timeval nsd_timestamp; /* timestamp from verifier */
218 u_int32_t nsd_ttl; /* credential ttl (sec) */
219 NFSKERBKEY_T nsd_key; /* Session key */
220};
221
222struct nfsd_cargs {
223 char *ncd_dirp; /* Mount dir path */
224 uid_t ncd_authuid; /* Effective uid */
225 int ncd_authtype; /* Type of authenticator */
226 int ncd_authlen; /* Length of authenticator string */
227 u_char *ncd_authstr; /* Authenticator string */
228 int ncd_verflen; /* and the verifier */
229 u_char *ncd_verfstr;
230 NFSKERBKEY_T ncd_key; /* Session key */
231};
232
233/*
234 * XXX to allow amd to include nfs.h without nfsproto.h
235 */
236#ifdef NFS_NPROCS
237/*
238 * Stats structure
239 */
240struct nfsstats {
241 int attrcache_hits;
242 int attrcache_misses;
243 int lookupcache_hits;
244 int lookupcache_misses;
245 int direofcache_hits;
246 int direofcache_misses;
247 int biocache_reads;
248 int read_bios;
249 int read_physios;
250 int biocache_writes;
251 int write_bios;
252 int write_physios;
253 int biocache_readlinks;
254 int readlink_bios;
255 int biocache_readdirs;
256 int readdir_bios;
257 int rpccnt[NFS_NPROCS];
258 int rpcretries;
259 int srvrpccnt[NFS_NPROCS];
260 int srvrpc_errs;
261 int srv_errs;
262 int rpcrequests;
263 int rpctimeouts;
264 int rpcunexpected;
265 int rpcinvalid;
266 int srvcache_inproghits;
267 int srvcache_idemdonehits;
268 int srvcache_nonidemdonehits;
269 int srvcache_misses;
270 int srvnqnfs_leases;
271 int srvnqnfs_maxleases;
272 int srvnqnfs_getleases;
273 int srvvop_writes;
274};
275#endif
276
277/*
278 * Flags for nfssvc() system call.
279 */
280#define NFSSVC_BIOD 0x002
281#define NFSSVC_NFSD 0x004
282#define NFSSVC_ADDSOCK 0x008
283#define NFSSVC_AUTHIN 0x010
284#define NFSSVC_GOTAUTH 0x040
285#define NFSSVC_AUTHINFAIL 0x080
286#define NFSSVC_MNTD 0x100
287
288/*
289 * fs.nfs sysctl(3) identifiers
290 */
291#define NFS_NFSSTATS 1 /* struct: struct nfsstats */
292#define NFS_NFSPRIVPORT 2 /* int: prohibit nfs to resvports */
293
294#define FS_NFS_NAMES { \
295 { 0, 0 }, \
296 { "nfsstats", CTLTYPE_STRUCT }, \
297 { "nfsprivport", CTLTYPE_INT }, \
298}
299
300#ifdef KERNEL
301
302#ifdef MALLOC_DECLARE
303MALLOC_DECLARE(M_NFSREQ);
304MALLOC_DECLARE(M_NFSDIROFF);
305MALLOC_DECLARE(M_NFSRVDESC);
306MALLOC_DECLARE(M_NFSUID);
307MALLOC_DECLARE(M_NQLEASE);
308MALLOC_DECLARE(M_NFSD);
309MALLOC_DECLARE(M_NFSBIGFH);
310MALLOC_DECLARE(M_NFSHASH);
311#endif
312
313#ifdef ZONE_INTERRUPT
314extern vm_zone_t nfsmount_zone;
315#endif
316
317extern struct callout_handle nfs_timer_handle;
318
319struct uio; struct buf; struct vattr; struct nameidata; /* XXX */
320
321/*
322 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts.
323 * What should be in this set is open to debate, but I believe that since
324 * I/O system calls on ufs are never interrupted by signals the set should
325 * be minimal. My reasoning is that many current programs that use signals
326 * such as SIGALRM will not expect file I/O system calls to be interrupted
327 * by them and break.
328 */
329#define NFSINT_SIGMASK (sigmask(SIGINT)|sigmask(SIGTERM)|sigmask(SIGKILL)| \
330 sigmask(SIGHUP)|sigmask(SIGQUIT))
331
332/*
333 * Socket errors ignored for connectionless sockets??
334 * For now, ignore them all
335 */
336#define NFSIGNORE_SOERROR(s, e) \
337 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \
338 ((s) & PR_CONNREQUIRED) == 0)
339
340/*
341 * Nfs outstanding request list element
342 */
343struct nfsreq {
344 TAILQ_ENTRY(nfsreq) r_chain;
345 struct mbuf *r_mreq;
346 struct mbuf *r_mrep;
347 struct mbuf *r_md;
348 caddr_t r_dpos;
349 struct nfsmount *r_nmp;
350 struct vnode *r_vp;
351 u_int32_t r_xid;
352 int r_flags; /* flags on request, see below */
353 int r_retry; /* max retransmission count */
354 int r_rexmit; /* current retrans count */
355 int r_timer; /* tick counter on reply */
356 u_int32_t r_procnum; /* NFS procedure number */
357 int r_rtt; /* RTT for rpc */
358 struct proc *r_procp; /* Proc that did I/O system call */
359};
360
361/*
362 * Queue head for nfsreq's
363 */
364extern TAILQ_HEAD(nfs_reqq, nfsreq) nfs_reqq;
365
366/* Flag values for r_flags */
367#define R_TIMING 0x01 /* timing request (in mntp) */
368#define R_SENT 0x02 /* request has been sent */
369#define R_SOFTTERM 0x04 /* soft mnt, too many retries */
370#define R_INTR 0x08 /* intr mnt, signal pending */
371#define R_SOCKERR 0x10 /* Fatal error on socket */
372#define R_TPRINTFMSG 0x20 /* Did a tprintf msg. */
373#define R_MUSTRESEND 0x40 /* Must resend request */
374#define R_GETONEREP 0x80 /* Probe for one reply only */
375
376/*
377 * A list of nfssvc_sock structures is maintained with all the sockets
378 * that require service by the nfsd.
379 * The nfsuid structs hang off of the nfssvc_sock structs in both lru
380 * and uid hash lists.
381 */
382#ifndef NFS_UIDHASHSIZ
383#define NFS_UIDHASHSIZ 29 /* Tune the size of nfssvc_sock with this */
384#endif
385#define NUIDHASH(sock, uid) \
386 (&(sock)->ns_uidhashtbl[(uid) % NFS_UIDHASHSIZ])
387#ifndef NFS_WDELAYHASHSIZ
388#define NFS_WDELAYHASHSIZ 16 /* and with this */
389#endif
390#define NWDELAYHASH(sock, f) \
391 (&(sock)->ns_wdelayhashtbl[(*((u_int32_t *)(f))) % NFS_WDELAYHASHSIZ])
392#ifndef NFS_MUIDHASHSIZ
393#define NFS_MUIDHASHSIZ 63 /* Tune the size of nfsmount with this */
394#endif
395#define NMUIDHASH(nmp, uid) \
396 (&(nmp)->nm_uidhashtbl[(uid) % NFS_MUIDHASHSIZ])
397#define NFSNOHASH(fhsum) \
398 (&nfsnodehashtbl[(fhsum) & nfsnodehash])
399
400/*
401 * Network address hash list element
402 */
403union nethostaddr {
404 u_int32_t had_inetaddr;
405 struct sockaddr *had_nam;
406};
407
408struct nfsuid {
409 TAILQ_ENTRY(nfsuid) nu_lru; /* LRU chain */
410 LIST_ENTRY(nfsuid) nu_hash; /* Hash list */
411 int nu_flag; /* Flags */
412 union nethostaddr nu_haddr; /* Host addr. for dgram sockets */
413 struct ucred nu_cr; /* Cred uid mapped to */
414 int nu_expire; /* Expiry time (sec) */
415 struct timeval nu_timestamp; /* Kerb. timestamp */
416 u_int32_t nu_nickname; /* Nickname on server */
417 NFSKERBKEY_T nu_key; /* and session key */
418};
419
420#define nu_inetaddr nu_haddr.had_inetaddr
421#define nu_nam nu_haddr.had_nam
422/* Bits for nu_flag */
423#define NU_INETADDR 0x1
424#define NU_NAM 0x2
425#define NU_NETFAM(u) (((u)->nu_flag & NU_INETADDR) ? AF_INET : AF_ISO)
426
427struct nfsrv_rec {
428 STAILQ_ENTRY(nfsrv_rec) nr_link;
429 struct sockaddr *nr_address;
430 struct mbuf *nr_packet;
431};
432
433struct nfssvc_sock {
434 TAILQ_ENTRY(nfssvc_sock) ns_chain; /* List of all nfssvc_sock's */
435 TAILQ_HEAD(, nfsuid) ns_uidlruhead;
436 struct file *ns_fp;
437 struct socket *ns_so;
438 struct sockaddr *ns_nam;
439 struct mbuf *ns_raw;
440 struct mbuf *ns_rawend;
441 STAILQ_HEAD(, nfsrv_rec) ns_rec;
442 struct mbuf *ns_frag;
443 int ns_flag;
444 int ns_solock;
445 int ns_cc;
446 int ns_reclen;
447 int ns_numuids;
448 u_int32_t ns_sref;
449 LIST_HEAD(, nfsrv_descript) ns_tq; /* Write gather lists */
450 LIST_HEAD(, nfsuid) ns_uidhashtbl[NFS_UIDHASHSIZ];
451 LIST_HEAD(nfsrvw_delayhash, nfsrv_descript) ns_wdelayhashtbl[NFS_WDELAYHASHSIZ];
452};
453
454/* Bits for "ns_flag" */
455#define SLP_VALID 0x01
456#define SLP_DOREC 0x02
457#define SLP_NEEDQ 0x04
458#define SLP_DISCONN 0x08
459#define SLP_GETSTREAM 0x10
460#define SLP_LASTFRAG 0x20
461#define SLP_ALLFLAGS 0xff
462
463extern TAILQ_HEAD(nfssvc_sockhead, nfssvc_sock) nfssvc_sockhead;
464extern int nfssvc_sockhead_flag;
465#define SLP_INIT 0x01
466#define SLP_WANTINIT 0x02
467
468/*
469 * One of these structures is allocated for each nfsd.
470 */
471struct nfsd {
472 TAILQ_ENTRY(nfsd) nfsd_chain; /* List of all nfsd's */
473 int nfsd_flag; /* NFSD_ flags */
474 struct nfssvc_sock *nfsd_slp; /* Current socket */
475 int nfsd_authlen; /* Authenticator len */
476 u_char nfsd_authstr[RPCAUTH_MAXSIZ]; /* Authenticator data */
477 int nfsd_verflen; /* and the Verifier */
478 u_char nfsd_verfstr[RPCVERF_MAXSIZ];
479 struct proc *nfsd_procp; /* Proc ptr */
480 struct nfsrv_descript *nfsd_nd; /* Associated nfsrv_descript */
481};
482
483/* Bits for "nfsd_flag" */
484#define NFSD_WAITING 0x01
485#define NFSD_REQINPROG 0x02
486#define NFSD_NEEDAUTH 0x04
487#define NFSD_AUTHFAIL 0x08
488
489/*
490 * This structure is used by the server for describing each request.
491 * Some fields are used only when write request gathering is performed.
492 */
493struct nfsrv_descript {
494 u_quad_t nd_time; /* Write deadline (usec) */
495 off_t nd_off; /* Start byte offset */
496 off_t nd_eoff; /* and end byte offset */
497 LIST_ENTRY(nfsrv_descript) nd_hash; /* Hash list */
498 LIST_ENTRY(nfsrv_descript) nd_tq; /* and timer list */
499 LIST_HEAD(,nfsrv_descript) nd_coalesce; /* coalesced writes */
500 struct mbuf *nd_mrep; /* Request mbuf list */
501 struct mbuf *nd_md; /* Current dissect mbuf */
502 struct mbuf *nd_mreq; /* Reply mbuf list */
503 struct sockaddr *nd_nam; /* and socket addr */
504 struct sockaddr *nd_nam2; /* return socket addr */
505 caddr_t nd_dpos; /* Current dissect pos */
506 u_int32_t nd_procnum; /* RPC # */
507 int nd_stable; /* storage type */
508 int nd_flag; /* nd_flag */
509 int nd_len; /* Length of this write */
510 int nd_repstat; /* Reply status */
511 u_int32_t nd_retxid; /* Reply xid */
512 u_int32_t nd_duration; /* Lease duration */
513 struct timeval nd_starttime; /* Time RPC initiated */
514 fhandle_t nd_fh; /* File handle */
515 struct ucred nd_cr; /* Credentials */
516};
517
518/* Bits for "nd_flag" */
519#define ND_READ LEASE_READ
520#define ND_WRITE LEASE_WRITE
521#define ND_CHECK 0x04
522#define ND_LEASE (ND_READ | ND_WRITE | ND_CHECK)
523#define ND_NFSV3 0x08
524#define ND_NQNFS 0x10
525#define ND_KERBNICK 0x20
526#define ND_KERBFULL 0x40
527#define ND_KERBAUTH (ND_KERBNICK | ND_KERBFULL)
528
529extern TAILQ_HEAD(nfsd_head, nfsd) nfsd_head;
530extern int nfsd_head_flag;
531#define NFSD_CHECKSLP 0x01
532
533/*
534 * These macros compare nfsrv_descript structures.
535 */
536#define NFSW_CONTIG(o, n) \
537 ((o)->nd_eoff >= (n)->nd_off && \
538 !bcmp((caddr_t)&(o)->nd_fh, (caddr_t)&(n)->nd_fh, NFSX_V3FH))
539
540#define NFSW_SAMECRED(o, n) \
541 (((o)->nd_flag & ND_KERBAUTH) == ((n)->nd_flag & ND_KERBAUTH) && \
542 !bcmp((caddr_t)&(o)->nd_cr, (caddr_t)&(n)->nd_cr, \
543 sizeof (struct ucred)))
544
545/*
546 * Defines for WebNFS
547 */
548
549#define WEBNFS_ESC_CHAR '%'
550#define WEBNFS_SPECCHAR_START 0x80
551
552#define WEBNFS_NATIVE_CHAR 0x80
553/*
554 * ..
555 * Possibly more here in the future.
556 */
557
558/*
559 * Macro for converting escape characters in WebNFS pathnames.
560 * Should really be in libkern.
561 */
562
563#define HEXTOC(c) \
564 ((c) >= 'a' ? ((c) - ('a' - 10)) : \
565 ((c) >= 'A' ? ((c) - ('A' - 10)) : ((c) - '0')))
566#define HEXSTRTOI(p) \
567 ((HEXTOC(p[0]) << 4) + HEXTOC(p[1]))
568
569#ifdef NFS_DEBUG
570
571extern int nfs_debug;
572#define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */
573#define NFS_DEBUG_WG 2 /* server write gathering */
574#define NFS_DEBUG_RC 4 /* server request caching */
575
576#define NFS_DPF(cat, args) \
577 do { \
578 if (nfs_debug & NFS_DEBUG_##cat) printf args; \
579 } while (0)
580
581#else
582
583#define NFS_DPF(cat, args)
584
585#endif
586
587u_quad_t nfs_curusec __P((void));
588int nfs_init __P((struct vfsconf *vfsp));
589int nfs_uninit __P((struct vfsconf *vfsp));
590int nfs_reply __P((struct nfsreq *));
591int nfs_getreq __P((struct nfsrv_descript *,struct nfsd *,int));
592int nfs_send __P((struct socket *, struct sockaddr *, struct mbuf *,
593 struct nfsreq *));
594int nfs_rephead __P((int, struct nfsrv_descript *, struct nfssvc_sock *,
595 int, int, u_quad_t *, struct mbuf **, struct mbuf **,
596 caddr_t *));
597int nfs_sndlock __P((struct nfsreq *));
598void nfs_sndunlock __P((struct nfsreq *));
599int nfs_slplock __P((struct nfssvc_sock *, int));
600void nfs_slpunlock __P((struct nfssvc_sock *));
601int nfs_disct __P((struct mbuf **, caddr_t *, int, int, caddr_t *));
602int nfs_vinvalbuf __P((struct vnode *, int, struct ucred *, struct proc *,
603 int));
604int nfs_readrpc __P((struct vnode *, struct uio *, struct ucred *));
605int nfs_writerpc __P((struct vnode *, struct uio *, struct ucred *, int *,
606 int *));
607int nfs_readdirrpc __P((struct vnode *, struct uio *, struct ucred *));
|
608int nfs_asyncio __P((struct buf *, struct ucred *));
| 608int nfs_asyncio __P((struct buf *, struct ucred *, struct proc *));
|
609int nfs_doio __P((struct buf *, struct ucred *, struct proc *));
610int nfs_readlinkrpc __P((struct vnode *, struct uio *, struct ucred *));
611int nfs_sigintr __P((struct nfsmount *, struct nfsreq *, struct proc *));
612int nfs_readdirplusrpc __P((struct vnode *, struct uio *, struct ucred *));
613int nfsm_disct __P((struct mbuf **, caddr_t *, int, int, caddr_t *));
614void nfsm_srvfattr __P((struct nfsrv_descript *, struct vattr *,
615 struct nfs_fattr *));
616void nfsm_srvwcc __P((struct nfsrv_descript *, int, struct vattr *, int,
617 struct vattr *, struct mbuf **, char **));
618void nfsm_srvpostopattr __P((struct nfsrv_descript *, int, struct vattr *,
619 struct mbuf **, char **));
620int netaddr_match __P((int, union nethostaddr *, struct sockaddr *));
621int nfs_request __P((struct vnode *, struct mbuf *, int, struct proc *,
622 struct ucred *, struct mbuf **, struct mbuf **,
623 caddr_t *));
624int nfs_loadattrcache __P((struct vnode **, struct mbuf **, caddr_t *,
625 struct vattr *));
626int nfs_namei __P((struct nameidata *, fhandle_t *, int,
627 struct nfssvc_sock *, struct sockaddr *, struct mbuf **,
628 caddr_t *, struct vnode **, struct proc *, int, int));
629void nfsm_adj __P((struct mbuf *, int, int));
630int nfsm_mbuftouio __P((struct mbuf **, struct uio *, int, caddr_t *));
631void nfsrv_initcache __P((void));
632int nfs_getauth __P((struct nfsmount *, struct nfsreq *, struct ucred *,
633 char **, int *, char *, int *, NFSKERBKEY_T));
634int nfs_getnickauth __P((struct nfsmount *, struct ucred *, char **,
635 int *, char *, int));
636int nfs_savenickauth __P((struct nfsmount *, struct ucred *, int,
637 NFSKERBKEY_T, struct mbuf **, char **,
638 struct mbuf *));
639int nfs_adv __P((struct mbuf **, caddr_t *, int, int));
640void nfs_nhinit __P((void));
641void nfs_timer __P((void*));
642u_long nfs_hash __P((nfsfh_t *, int));
643int nfsrv_dorec __P((struct nfssvc_sock *, struct nfsd *,
644 struct nfsrv_descript **));
645int nfsrv_getcache __P((struct nfsrv_descript *, struct nfssvc_sock *,
646 struct mbuf **));
647void nfsrv_updatecache __P((struct nfsrv_descript *, int, struct mbuf *));
648void nfsrv_cleancache __P((void));
649int nfs_connect __P((struct nfsmount *, struct nfsreq *));
650void nfs_disconnect __P((struct nfsmount *));
651void nfs_safedisconnect __P((struct nfsmount *));
652int nfs_getattrcache __P((struct vnode *, struct vattr *));
653int nfsm_strtmbuf __P((struct mbuf **, char **, const char *, long));
654int nfs_bioread __P((struct vnode *, struct uio *, int, struct ucred *));
655int nfsm_uiotombuf __P((struct uio *, struct mbuf **, int, caddr_t *));
656void nfsrv_init __P((int));
657void nfs_clearcommit __P((struct mount *));
658int nfsrv_errmap __P((struct nfsrv_descript *, int));
659void nfsrvw_sort __P((gid_t *, int));
660void nfsrv_setcred __P((struct ucred *, struct ucred *));
| 609int nfs_doio __P((struct buf *, struct ucred *, struct proc *));
610int nfs_readlinkrpc __P((struct vnode *, struct uio *, struct ucred *));
611int nfs_sigintr __P((struct nfsmount *, struct nfsreq *, struct proc *));
612int nfs_readdirplusrpc __P((struct vnode *, struct uio *, struct ucred *));
613int nfsm_disct __P((struct mbuf **, caddr_t *, int, int, caddr_t *));
614void nfsm_srvfattr __P((struct nfsrv_descript *, struct vattr *,
615 struct nfs_fattr *));
616void nfsm_srvwcc __P((struct nfsrv_descript *, int, struct vattr *, int,
617 struct vattr *, struct mbuf **, char **));
618void nfsm_srvpostopattr __P((struct nfsrv_descript *, int, struct vattr *,
619 struct mbuf **, char **));
620int netaddr_match __P((int, union nethostaddr *, struct sockaddr *));
621int nfs_request __P((struct vnode *, struct mbuf *, int, struct proc *,
622 struct ucred *, struct mbuf **, struct mbuf **,
623 caddr_t *));
624int nfs_loadattrcache __P((struct vnode **, struct mbuf **, caddr_t *,
625 struct vattr *));
626int nfs_namei __P((struct nameidata *, fhandle_t *, int,
627 struct nfssvc_sock *, struct sockaddr *, struct mbuf **,
628 caddr_t *, struct vnode **, struct proc *, int, int));
629void nfsm_adj __P((struct mbuf *, int, int));
630int nfsm_mbuftouio __P((struct mbuf **, struct uio *, int, caddr_t *));
631void nfsrv_initcache __P((void));
632int nfs_getauth __P((struct nfsmount *, struct nfsreq *, struct ucred *,
633 char **, int *, char *, int *, NFSKERBKEY_T));
634int nfs_getnickauth __P((struct nfsmount *, struct ucred *, char **,
635 int *, char *, int));
636int nfs_savenickauth __P((struct nfsmount *, struct ucred *, int,
637 NFSKERBKEY_T, struct mbuf **, char **,
638 struct mbuf *));
639int nfs_adv __P((struct mbuf **, caddr_t *, int, int));
640void nfs_nhinit __P((void));
641void nfs_timer __P((void*));
642u_long nfs_hash __P((nfsfh_t *, int));
643int nfsrv_dorec __P((struct nfssvc_sock *, struct nfsd *,
644 struct nfsrv_descript **));
645int nfsrv_getcache __P((struct nfsrv_descript *, struct nfssvc_sock *,
646 struct mbuf **));
647void nfsrv_updatecache __P((struct nfsrv_descript *, int, struct mbuf *));
648void nfsrv_cleancache __P((void));
649int nfs_connect __P((struct nfsmount *, struct nfsreq *));
650void nfs_disconnect __P((struct nfsmount *));
651void nfs_safedisconnect __P((struct nfsmount *));
652int nfs_getattrcache __P((struct vnode *, struct vattr *));
653int nfsm_strtmbuf __P((struct mbuf **, char **, const char *, long));
654int nfs_bioread __P((struct vnode *, struct uio *, int, struct ucred *));
655int nfsm_uiotombuf __P((struct uio *, struct mbuf **, int, caddr_t *));
656void nfsrv_init __P((int));
657void nfs_clearcommit __P((struct mount *));
658int nfsrv_errmap __P((struct nfsrv_descript *, int));
659void nfsrvw_sort __P((gid_t *, int));
660void nfsrv_setcred __P((struct ucred *, struct ucred *));
|
661int nfs_writebp __P((struct buf *, int));
| 661int nfs_writebp __P((struct buf *, int, struct proc *));
|
662int nfsrv_object_create __P((struct vnode *));
663void nfsrv_wakenfsd __P((struct nfssvc_sock *slp));
664int nfsrv_writegather __P((struct nfsrv_descript **, struct nfssvc_sock *,
665 struct proc *, struct mbuf **));
666int nfs_fsinfo __P((struct nfsmount *, struct vnode *, struct ucred *,
667 struct proc *p));
668
669int nfsrv3_access __P((struct nfsrv_descript *nfsd,
670 struct nfssvc_sock *slp,
671 struct proc *procp, struct mbuf **mrq));
672int nfsrv_commit __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
673 struct proc *procp, struct mbuf **mrq));
674int nfsrv_create __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
675 struct proc *procp, struct mbuf **mrq));
676int nfsrv_fhtovp __P((fhandle_t *, int, struct vnode **, struct ucred *,
677 struct nfssvc_sock *, struct sockaddr *, int *,
678 int, int));
679int nfsrv_setpublicfs __P((struct mount *, struct netexport *,
680 struct export_args *));
681int nfs_ispublicfh __P((fhandle_t *));
682int nfsrv_fsinfo __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
683 struct proc *procp, struct mbuf **mrq));
684int nfsrv_getattr __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
685 struct proc *procp, struct mbuf **mrq));
686int nfsrv_link __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
687 struct proc *procp, struct mbuf **mrq));
688int nfsrv_lookup __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
689 struct proc *procp, struct mbuf **mrq));
690int nfsrv_mkdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
691 struct proc *procp, struct mbuf **mrq));
692int nfsrv_mknod __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
693 struct proc *procp, struct mbuf **mrq));
694int nfsrv_noop __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
695 struct proc *procp, struct mbuf **mrq));
696int nfsrv_null __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
697 struct proc *procp, struct mbuf **mrq));
698int nfsrv_pathconf __P((struct nfsrv_descript *nfsd,
699 struct nfssvc_sock *slp, struct proc *procp,
700 struct mbuf **mrq));
701int nfsrv_read __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
702 struct proc *procp, struct mbuf **mrq));
703int nfsrv_readdir __P((struct nfsrv_descript *nfsd,
704 struct nfssvc_sock *slp,
705 struct proc *procp, struct mbuf **mrq));
706int nfsrv_readdirplus __P((struct nfsrv_descript *nfsd,
707 struct nfssvc_sock *slp, struct proc *procp,
708 struct mbuf **mrq));
709int nfsrv_readlink __P((struct nfsrv_descript *nfsd,
710 struct nfssvc_sock *slp, struct proc *procp,
711 struct mbuf **mrq));
712int nfsrv_remove __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
713 struct proc *procp, struct mbuf **mrq));
714int nfsrv_rename __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
715 struct proc *procp, struct mbuf **mrq));
716int nfsrv_rmdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
717 struct proc *procp, struct mbuf **mrq));
718int nfsrv_setattr __P((struct nfsrv_descript *nfsd,
719 struct nfssvc_sock *slp,
720 struct proc *procp, struct mbuf **mrq));
721int nfsrv_statfs __P((struct nfsrv_descript *nfsd,
722 struct nfssvc_sock *slp,
723 struct proc *procp, struct mbuf **mrq));
724int nfsrv_symlink __P((struct nfsrv_descript *nfsd,
725 struct nfssvc_sock *slp,
726 struct proc *procp, struct mbuf **mrq));
727int nfsrv_write __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
728 struct proc *procp, struct mbuf **mrq));
729void nfsrv_rcv __P((struct socket *so, void *arg, int waitflag));
730void nfsrv_slpderef __P((struct nfssvc_sock *slp));
731#endif /* KERNEL */
732
733#endif
| 662int nfsrv_object_create __P((struct vnode *));
663void nfsrv_wakenfsd __P((struct nfssvc_sock *slp));
664int nfsrv_writegather __P((struct nfsrv_descript **, struct nfssvc_sock *,
665 struct proc *, struct mbuf **));
666int nfs_fsinfo __P((struct nfsmount *, struct vnode *, struct ucred *,
667 struct proc *p));
668
669int nfsrv3_access __P((struct nfsrv_descript *nfsd,
670 struct nfssvc_sock *slp,
671 struct proc *procp, struct mbuf **mrq));
672int nfsrv_commit __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
673 struct proc *procp, struct mbuf **mrq));
674int nfsrv_create __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
675 struct proc *procp, struct mbuf **mrq));
676int nfsrv_fhtovp __P((fhandle_t *, int, struct vnode **, struct ucred *,
677 struct nfssvc_sock *, struct sockaddr *, int *,
678 int, int));
679int nfsrv_setpublicfs __P((struct mount *, struct netexport *,
680 struct export_args *));
681int nfs_ispublicfh __P((fhandle_t *));
682int nfsrv_fsinfo __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
683 struct proc *procp, struct mbuf **mrq));
684int nfsrv_getattr __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
685 struct proc *procp, struct mbuf **mrq));
686int nfsrv_link __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
687 struct proc *procp, struct mbuf **mrq));
688int nfsrv_lookup __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
689 struct proc *procp, struct mbuf **mrq));
690int nfsrv_mkdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
691 struct proc *procp, struct mbuf **mrq));
692int nfsrv_mknod __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
693 struct proc *procp, struct mbuf **mrq));
694int nfsrv_noop __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
695 struct proc *procp, struct mbuf **mrq));
696int nfsrv_null __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
697 struct proc *procp, struct mbuf **mrq));
698int nfsrv_pathconf __P((struct nfsrv_descript *nfsd,
699 struct nfssvc_sock *slp, struct proc *procp,
700 struct mbuf **mrq));
701int nfsrv_read __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
702 struct proc *procp, struct mbuf **mrq));
703int nfsrv_readdir __P((struct nfsrv_descript *nfsd,
704 struct nfssvc_sock *slp,
705 struct proc *procp, struct mbuf **mrq));
706int nfsrv_readdirplus __P((struct nfsrv_descript *nfsd,
707 struct nfssvc_sock *slp, struct proc *procp,
708 struct mbuf **mrq));
709int nfsrv_readlink __P((struct nfsrv_descript *nfsd,
710 struct nfssvc_sock *slp, struct proc *procp,
711 struct mbuf **mrq));
712int nfsrv_remove __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
713 struct proc *procp, struct mbuf **mrq));
714int nfsrv_rename __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
715 struct proc *procp, struct mbuf **mrq));
716int nfsrv_rmdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
717 struct proc *procp, struct mbuf **mrq));
718int nfsrv_setattr __P((struct nfsrv_descript *nfsd,
719 struct nfssvc_sock *slp,
720 struct proc *procp, struct mbuf **mrq));
721int nfsrv_statfs __P((struct nfsrv_descript *nfsd,
722 struct nfssvc_sock *slp,
723 struct proc *procp, struct mbuf **mrq));
724int nfsrv_symlink __P((struct nfsrv_descript *nfsd,
725 struct nfssvc_sock *slp,
726 struct proc *procp, struct mbuf **mrq));
727int nfsrv_write __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
728 struct proc *procp, struct mbuf **mrq));
729void nfsrv_rcv __P((struct socket *so, void *arg, int waitflag));
730void nfsrv_slpderef __P((struct nfssvc_sock *slp));
731#endif /* KERNEL */
732
733#endif
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