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