nfsargs.h revision 25781
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 1.25 1997/05/10 16:12:02 dfr Exp $ 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 5 /* Attribute cache timeout in sec */ 60#endif 61#ifndef NFS_MAXATTRTIMO 62#define NFS_MAXATTRTIMO 60 63#endif 64#define NFS_WSIZE 8192 /* Def. write data size <= 8192 */ 65#define NFS_RSIZE 8192 /* Def. read data size <= 8192 */ 66#define NFS_READDIRSIZE 8192 /* Def. readdir size */ 67#define NFS_DEFRAHEAD 1 /* Def. read ahead # blocks */ 68#define NFS_MAXRAHEAD 4 /* Max. read ahead # blocks */ 69#define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */ 70#define NFS_MAXASYNCDAEMON 20 /* Max. number async_daemons runnable */ 71#define NFS_MAXGATHERDELAY 100 /* Max. write gather delay (msec) */ 72#ifndef NFS_GATHERDELAY 73#define NFS_GATHERDELAY 10 /* Default write gather delay (msec) */ 74#endif 75#define NFS_DIRBLKSIZ 4096 /* Must be a multiple of DIRBLKSIZ */ 76#ifdef KERNEL 77#define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */ 78#endif 79 80/* 81 * Oddballs 82 */ 83#define NMOD(a) ((a) % nfs_asyncdaemons) 84#define NFS_CMPFH(n, f, s) \ 85 ((n)->n_fhsize == (s) && !bcmp((caddr_t)(n)->n_fhp, (caddr_t)(f), (s))) 86#define NFS_ISV3(v) (VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV3) 87#define NFS_SRVMAXDATA(n) \ 88 (((n)->nd_flag & ND_NFSV3) ? (((n)->nd_nam2) ? \ 89 NFS_MAXDGRAMDATA : NFS_MAXDATA) : NFS_V2MAXDATA) 90 91/* 92 * XXX 93 * The B_INVAFTERWRITE flag should be set to whatever is required by the 94 * buffer cache code to say "Invalidate the block after it is written back". 95 */ 96#ifdef __FreeBSD__ 97#define B_INVAFTERWRITE B_NOCACHE 98#else 99#define B_INVAFTERWRITE B_INVAL 100#endif 101 102/* 103 * The IO_METASYNC flag should be implemented for local file systems. 104 * (Until then, it is nothin at all.) 105 */ 106#ifndef IO_METASYNC 107#define IO_METASYNC 0 108#endif 109 110/* 111 * Set the attribute timeout based on how recently the file has been modified. 112 */ 113#define NFS_ATTRTIMEO(np) \ 114 ((((np)->n_flag & NMODIFIED) || \ 115 (time.tv_sec - (np)->n_mtime) / 10 < NFS_MINATTRTIMO) ? NFS_MINATTRTIMO : \ 116 ((time.tv_sec - (np)->n_mtime) / 10 > NFS_MAXATTRTIMO ? NFS_MAXATTRTIMO : \ 117 (time.tv_sec - (np)->n_mtime) / 10)) 118 119/* 120 * Expected allocation sizes for major data structures. If the actual size 121 * of the structure exceeds these sizes, then malloc() will be allocating 122 * almost twice the memory required. This is used in nfs_init() to warn 123 * the sysadmin that the size of a structure should be reduced. 124 * (These sizes are always a power of 2. If the kernel malloc() changes 125 * to one that does not allocate space in powers of 2 size, then this all 126 * becomes bunk!) 127 */ 128#define NFS_NODEALLOC 256 129#define NFS_MNTALLOC 512 130#define NFS_SVCALLOC 256 131#define NFS_UIDALLOC 128 132 133/* 134 * Arguments to mount NFS 135 */ 136#define NFS_ARGSVERSION 3 /* change when nfs_args changes */ 137struct nfs_args { 138 int version; /* args structure version number */ 139 struct sockaddr *addr; /* file server address */ 140 int addrlen; /* length of address */ 141 int sotype; /* Socket type */ 142 int proto; /* and Protocol */ 143 u_char *fh; /* File handle to be mounted */ 144 int fhsize; /* Size, in bytes, of fh */ 145 int flags; /* flags */ 146 int wsize; /* write size in bytes */ 147 int rsize; /* read size in bytes */ 148 int readdirsize; /* readdir size in bytes */ 149 int timeo; /* initial timeout in .1 secs */ 150 int retrans; /* times to retry send */ 151 int maxgrouplist; /* Max. size of group list */ 152 int readahead; /* # of blocks to readahead */ 153 int leaseterm; /* Term (sec) of lease */ 154 int deadthresh; /* Retrans threshold */ 155 char *hostname; /* server's name */ 156}; 157 158/* 159 * NFS mount option flags 160 */ 161#define NFSMNT_SOFT 0x00000001 /* soft mount (hard is default) */ 162#define NFSMNT_WSIZE 0x00000002 /* set write size */ 163#define NFSMNT_RSIZE 0x00000004 /* set read size */ 164#define NFSMNT_TIMEO 0x00000008 /* set initial timeout */ 165#define NFSMNT_RETRANS 0x00000010 /* set number of request retries */ 166#define NFSMNT_MAXGRPS 0x00000020 /* set maximum grouplist size */ 167#define NFSMNT_INT 0x00000040 /* allow interrupts on hard mount */ 168#define NFSMNT_NOCONN 0x00000080 /* Don't Connect the socket */ 169#define NFSMNT_NQNFS 0x00000100 /* Use Nqnfs protocol */ 170#define NFSMNT_NFSV3 0x00000200 /* Use NFS Version 3 protocol */ 171#define NFSMNT_KERB 0x00000400 /* Use Kerberos authentication */ 172#define NFSMNT_DUMBTIMR 0x00000800 /* Don't estimate rtt dynamically */ 173#define NFSMNT_LEASETERM 0x00001000 /* set lease term (nqnfs) */ 174#define NFSMNT_READAHEAD 0x00002000 /* set read ahead */ 175#define NFSMNT_DEADTHRESH 0x00004000 /* set dead server retry thresh */ 176#define NFSMNT_RESVPORT 0x00008000 /* Allocate a reserved port */ 177#define NFSMNT_RDIRPLUS 0x00010000 /* Use Readdirplus for V3 */ 178#define NFSMNT_READDIRSIZE 0x00020000 /* Set readdir size */ 179#define NFSMNT_INTERNAL 0xfffc0000 /* Bits set internally */ 180#define NFSMNT_HASWRITEVERF 0x00040000 /* Has write verifier for V3 */ 181#define NFSMNT_GOTPATHCONF 0x00080000 /* Got the V3 pathconf info */ 182#define NFSMNT_GOTFSINFO 0x00100000 /* Got the V3 fsinfo */ 183#define NFSMNT_MNTD 0x00200000 /* Mnt server for mnt point */ 184#define NFSMNT_DISMINPROG 0x00400000 /* Dismount in progress */ 185#define NFSMNT_DISMNT 0x00800000 /* Dismounted */ 186#define NFSMNT_SNDLOCK 0x01000000 /* Send socket lock */ 187#define NFSMNT_WANTSND 0x02000000 /* Want above */ 188#define NFSMNT_RCVLOCK 0x04000000 /* Rcv socket lock */ 189#define NFSMNT_WANTRCV 0x08000000 /* Want above */ 190#define NFSMNT_WAITAUTH 0x10000000 /* Wait for authentication */ 191#define NFSMNT_HASAUTH 0x20000000 /* Has authenticator */ 192#define NFSMNT_WANTAUTH 0x40000000 /* Wants an authenticator */ 193#define NFSMNT_AUTHERR 0x80000000 /* Authentication error */ 194 195/* 196 * Structures for the nfssvc(2) syscall. Not that anyone but nfsd and mount_nfs 197 * should ever try and use it. 198 */ 199struct nfsd_args { 200 int sock; /* Socket to serve */ 201 caddr_t name; /* Client addr for connection based sockets */ 202 int namelen; /* Length of name */ 203}; 204 205struct nfsd_srvargs { 206 struct nfsd *nsd_nfsd; /* Pointer to in kernel nfsd struct */ 207 uid_t nsd_uid; /* Effective uid mapped to cred */ 208 u_long nsd_haddr; /* Ip address of client */ 209 struct ucred nsd_cr; /* Cred. uid maps to */ 210 int nsd_authlen; /* Length of auth string (ret) */ 211 u_char *nsd_authstr; /* Auth string (ret) */ 212 int nsd_verflen; /* and the verfier */ 213 u_char *nsd_verfstr; 214 struct timeval nsd_timestamp; /* timestamp from verifier */ 215 u_long nsd_ttl; /* credential ttl (sec) */ 216 NFSKERBKEY_T nsd_key; /* Session key */ 217}; 218 219struct nfsd_cargs { 220 char *ncd_dirp; /* Mount dir path */ 221 uid_t ncd_authuid; /* Effective uid */ 222 int ncd_authtype; /* Type of authenticator */ 223 int ncd_authlen; /* Length of authenticator string */ 224 u_char *ncd_authstr; /* Authenticator string */ 225 int ncd_verflen; /* and the verifier */ 226 u_char *ncd_verfstr; 227 NFSKERBKEY_T ncd_key; /* Session key */ 228}; 229 230/* 231 * XXX to allow amd to include nfs.h without nfsproto.h 232 */ 233#ifdef NFS_NPROCS 234/* 235 * Stats structure 236 */ 237struct nfsstats { 238 int attrcache_hits; 239 int attrcache_misses; 240 int lookupcache_hits; 241 int lookupcache_misses; 242 int direofcache_hits; 243 int direofcache_misses; 244 int biocache_reads; 245 int read_bios; 246 int read_physios; 247 int biocache_writes; 248 int write_bios; 249 int write_physios; 250 int biocache_readlinks; 251 int readlink_bios; 252 int biocache_readdirs; 253 int readdir_bios; 254 int rpccnt[NFS_NPROCS]; 255 int rpcretries; 256 int srvrpccnt[NFS_NPROCS]; 257 int srvrpc_errs; 258 int srv_errs; 259 int rpcrequests; 260 int rpctimeouts; 261 int rpcunexpected; 262 int rpcinvalid; 263 int srvcache_inproghits; 264 int srvcache_idemdonehits; 265 int srvcache_nonidemdonehits; 266 int srvcache_misses; 267 int srvnqnfs_leases; 268 int srvnqnfs_maxleases; 269 int srvnqnfs_getleases; 270 int srvvop_writes; 271}; 272#endif 273 274/* 275 * Flags for nfssvc() system call. 276 */ 277#define NFSSVC_BIOD 0x002 278#define NFSSVC_NFSD 0x004 279#define NFSSVC_ADDSOCK 0x008 280#define NFSSVC_AUTHIN 0x010 281#define NFSSVC_GOTAUTH 0x040 282#define NFSSVC_AUTHINFAIL 0x080 283#define NFSSVC_MNTD 0x100 284 285/* 286 * fs.nfs sysctl(3) identifiers 287 */ 288#define NFS_NFSSTATS 1 /* struct: struct nfsstats */ 289#define NFS_NFSPRIVPORT 2 /* int: prohibit nfs to resvports */ 290 291#define FS_NFS_NAMES { \ 292 { 0, 0 }, \ 293 { "nfsstats", CTLTYPE_STRUCT }, \ 294 { "nfsprivport", CTLTYPE_INT }, \ 295} 296 297/* 298 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts. 299 * What should be in this set is open to debate, but I believe that since 300 * I/O system calls on ufs are never interrupted by signals the set should 301 * be minimal. My reasoning is that many current programs that use signals 302 * such as SIGALRM will not expect file I/O system calls to be interrupted 303 * by them and break. 304 */ 305#ifdef KERNEL 306 307struct uio; struct buf; struct vattr; struct nameidata; /* XXX */ 308 309#define NFSINT_SIGMASK (sigmask(SIGINT)|sigmask(SIGTERM)|sigmask(SIGKILL)| \ 310 sigmask(SIGHUP)|sigmask(SIGQUIT)) 311 312/* 313 * Socket errors ignored for connectionless sockets?? 314 * For now, ignore them all 315 */ 316#define NFSIGNORE_SOERROR(s, e) \ 317 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \ 318 ((s) & PR_CONNREQUIRED) == 0) 319 320/* 321 * Nfs outstanding request list element 322 */ 323struct nfsreq { 324 TAILQ_ENTRY(nfsreq) r_chain; 325 struct mbuf *r_mreq; 326 struct mbuf *r_mrep; 327 struct mbuf *r_md; 328 caddr_t r_dpos; 329 struct nfsmount *r_nmp; 330 struct vnode *r_vp; 331 u_long r_xid; 332 int r_flags; /* flags on request, see below */ 333 int r_retry; /* max retransmission count */ 334 int r_rexmit; /* current retrans count */ 335 int r_timer; /* tick counter on reply */ 336 int r_procnum; /* NFS procedure number */ 337 int r_rtt; /* RTT for rpc */ 338 struct proc *r_procp; /* Proc that did I/O system call */ 339}; 340 341/* 342 * Queue head for nfsreq's 343 */ 344extern TAILQ_HEAD(nfs_reqq, nfsreq) nfs_reqq; 345 346/* Flag values for r_flags */ 347#define R_TIMING 0x01 /* timing request (in mntp) */ 348#define R_SENT 0x02 /* request has been sent */ 349#define R_SOFTTERM 0x04 /* soft mnt, too many retries */ 350#define R_INTR 0x08 /* intr mnt, signal pending */ 351#define R_SOCKERR 0x10 /* Fatal error on socket */ 352#define R_TPRINTFMSG 0x20 /* Did a tprintf msg. */ 353#define R_MUSTRESEND 0x40 /* Must resend request */ 354#define R_GETONEREP 0x80 /* Probe for one reply only */ 355 356/* 357 * A list of nfssvc_sock structures is maintained with all the sockets 358 * that require service by the nfsd. 359 * The nfsuid structs hang off of the nfssvc_sock structs in both lru 360 * and uid hash lists. 361 */ 362#ifndef NFS_UIDHASHSIZ 363#define NFS_UIDHASHSIZ 29 /* Tune the size of nfssvc_sock with this */ 364#endif 365#define NUIDHASH(sock, uid) \ 366 (&(sock)->ns_uidhashtbl[(uid) % NFS_UIDHASHSIZ]) 367#ifndef NFS_WDELAYHASHSIZ 368#define NFS_WDELAYHASHSIZ 16 /* and with this */ 369#endif 370#define NWDELAYHASH(sock, f) \ 371 (&(sock)->ns_wdelayhashtbl[(*((u_long *)(f))) % NFS_WDELAYHASHSIZ]) 372#ifndef NFS_MUIDHASHSIZ 373#define NFS_MUIDHASHSIZ 63 /* Tune the size of nfsmount with this */ 374#endif 375#define NMUIDHASH(nmp, uid) \ 376 (&(nmp)->nm_uidhashtbl[(uid) % NFS_MUIDHASHSIZ]) 377#define NFSNOHASH(fhsum) \ 378 (&nfsnodehashtbl[(fhsum) & nfsnodehash]) 379 380/* 381 * Network address hash list element 382 */ 383union nethostaddr { 384 u_long had_inetaddr; 385 struct mbuf *had_nam; 386}; 387 388struct nfsuid { 389 TAILQ_ENTRY(nfsuid) nu_lru; /* LRU chain */ 390 LIST_ENTRY(nfsuid) nu_hash; /* Hash list */ 391 int nu_flag; /* Flags */ 392 union nethostaddr nu_haddr; /* Host addr. for dgram sockets */ 393 struct ucred nu_cr; /* Cred uid mapped to */ 394 int nu_expire; /* Expiry time (sec) */ 395 struct timeval nu_timestamp; /* Kerb. timestamp */ 396 u_long nu_nickname; /* Nickname on server */ 397 NFSKERBKEY_T nu_key; /* and session key */ 398}; 399 400#define nu_inetaddr nu_haddr.had_inetaddr 401#define nu_nam nu_haddr.had_nam 402/* Bits for nu_flag */ 403#define NU_INETADDR 0x1 404#define NU_NAM 0x2 405#define NU_NETFAM(u) (((u)->nu_flag & NU_INETADDR) ? AF_INET : AF_ISO) 406 407struct nfsrv_rec { 408 STAILQ_ENTRY(nfsrv_rec) nr_link; 409 struct mbuf *nr_address; 410 struct mbuf *nr_packet; 411}; 412 413struct nfssvc_sock { 414 TAILQ_ENTRY(nfssvc_sock) ns_chain; /* List of all nfssvc_sock's */ 415 TAILQ_HEAD(, nfsuid) ns_uidlruhead; 416 struct file *ns_fp; 417 struct socket *ns_so; 418 struct mbuf *ns_nam; 419 struct mbuf *ns_raw; 420 struct mbuf *ns_rawend; 421 STAILQ_HEAD(, nfsrv_rec) ns_rec; 422 struct mbuf *ns_frag; 423 int ns_flag; 424 int ns_solock; 425 int ns_cc; 426 int ns_reclen; 427 int ns_numuids; 428 u_long ns_sref; 429 LIST_HEAD(, nfsrv_descript) ns_tq; /* Write gather lists */ 430 LIST_HEAD(, nfsuid) ns_uidhashtbl[NFS_UIDHASHSIZ]; 431 LIST_HEAD(nfsrvw_delayhash, nfsrv_descript) ns_wdelayhashtbl[NFS_WDELAYHASHSIZ]; 432}; 433 434/* Bits for "ns_flag" */ 435#define SLP_VALID 0x01 436#define SLP_DOREC 0x02 437#define SLP_NEEDQ 0x04 438#define SLP_DISCONN 0x08 439#define SLP_GETSTREAM 0x10 440#define SLP_LASTFRAG 0x20 441#define SLP_ALLFLAGS 0xff 442 443extern TAILQ_HEAD(nfssvc_sockhead, nfssvc_sock) nfssvc_sockhead; 444extern int nfssvc_sockhead_flag; 445#define SLP_INIT 0x01 446#define SLP_WANTINIT 0x02 447 448/* 449 * One of these structures is allocated for each nfsd. 450 */ 451struct nfsd { 452 TAILQ_ENTRY(nfsd) nfsd_chain; /* List of all nfsd's */ 453 int nfsd_flag; /* NFSD_ flags */ 454 struct nfssvc_sock *nfsd_slp; /* Current socket */ 455 int nfsd_authlen; /* Authenticator len */ 456 u_char nfsd_authstr[RPCAUTH_MAXSIZ]; /* Authenticator data */ 457 int nfsd_verflen; /* and the Verifier */ 458 u_char nfsd_verfstr[RPCVERF_MAXSIZ]; 459 struct proc *nfsd_procp; /* Proc ptr */ 460 struct nfsrv_descript *nfsd_nd; /* Associated nfsrv_descript */ 461}; 462 463/* Bits for "nfsd_flag" */ 464#define NFSD_WAITING 0x01 465#define NFSD_REQINPROG 0x02 466#define NFSD_NEEDAUTH 0x04 467#define NFSD_AUTHFAIL 0x08 468 469/* 470 * This structure is used by the server for describing each request. 471 * Some fields are used only when write request gathering is performed. 472 */ 473struct nfsrv_descript { 474 u_quad_t nd_time; /* Write deadline (usec) */ 475 off_t nd_off; /* Start byte offset */ 476 off_t nd_eoff; /* and end byte offset */ 477 LIST_ENTRY(nfsrv_descript) nd_hash; /* Hash list */ 478 LIST_ENTRY(nfsrv_descript) nd_tq; /* and timer list */ 479 LIST_HEAD(,nfsrv_descript) nd_coalesce; /* coalesced writes */ 480 struct mbuf *nd_mrep; /* Request mbuf list */ 481 struct mbuf *nd_md; /* Current dissect mbuf */ 482 struct mbuf *nd_mreq; /* Reply mbuf list */ 483 struct mbuf *nd_nam; /* and socket addr */ 484 struct mbuf *nd_nam2; /* return socket addr */ 485 caddr_t nd_dpos; /* Current dissect pos */ 486 int nd_procnum; /* RPC # */ 487 int nd_stable; /* storage type */ 488 int nd_flag; /* nd_flag */ 489 int nd_len; /* Length of this write */ 490 int nd_repstat; /* Reply status */ 491 u_long nd_retxid; /* Reply xid */ 492 u_long nd_duration; /* Lease duration */ 493 struct timeval nd_starttime; /* Time RPC initiated */ 494 fhandle_t nd_fh; /* File handle */ 495 struct ucred nd_cr; /* Credentials */ 496}; 497 498/* Bits for "nd_flag" */ 499#define ND_READ LEASE_READ 500#define ND_WRITE LEASE_WRITE 501#define ND_CHECK 0x04 502#define ND_LEASE (ND_READ | ND_WRITE | ND_CHECK) 503#define ND_NFSV3 0x08 504#define ND_NQNFS 0x10 505#define ND_KERBNICK 0x20 506#define ND_KERBFULL 0x40 507#define ND_KERBAUTH (ND_KERBNICK | ND_KERBFULL) 508 509extern TAILQ_HEAD(nfsd_head, nfsd) nfsd_head; 510extern int nfsd_head_flag; 511#define NFSD_CHECKSLP 0x01 512 513/* 514 * These macros compare nfsrv_descript structures. 515 */ 516#define NFSW_CONTIG(o, n) \ 517 ((o)->nd_eoff >= (n)->nd_off && \ 518 !bcmp((caddr_t)&(o)->nd_fh, (caddr_t)&(n)->nd_fh, NFSX_V3FH)) 519 520#define NFSW_SAMECRED(o, n) \ 521 (((o)->nd_flag & ND_KERBAUTH) == ((n)->nd_flag & ND_KERBAUTH) && \ 522 !bcmp((caddr_t)&(o)->nd_cr, (caddr_t)&(n)->nd_cr, \ 523 sizeof (struct ucred))) 524 525#ifdef NFS_DEBUG 526 527extern int nfs_debug; 528#define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */ 529#define NFS_DEBUG_WG 2 /* server write gathering */ 530#define NFS_DEBUG_RC 4 /* server request caching */ 531 532#define NFS_DPF(cat, args) \ 533 do { \ 534 if (nfs_debug & NFS_DEBUG_##cat) printf args; \ 535 } while (0) 536 537#else 538 539#define NFS_DPF(cat, args) 540 541#endif 542 543int nfs_init __P((struct vfsconf *vfsp)); 544int nfs_reply __P((struct nfsreq *)); 545int nfs_getreq __P((struct nfsrv_descript *,struct nfsd *,int)); 546int nfs_send __P((struct socket *,struct mbuf *,struct mbuf *,struct nfsreq *)); 547int nfs_rephead __P((int,struct nfsrv_descript *,struct nfssvc_sock *,int,int,u_quad_t *,struct mbuf **,struct mbuf **,caddr_t *)); 548int nfs_sndlock __P((int *,struct nfsreq *)); 549void nfs_sndunlock __P((int *flagp)); 550int nfs_disct __P((struct mbuf **,caddr_t *,int,int,caddr_t *)); 551int nfs_vinvalbuf __P((struct vnode *,int,struct ucred *,struct proc *,int)); 552int nfs_readrpc __P((struct vnode *,struct uio *,struct ucred *)); 553int nfs_writerpc __P((struct vnode *,struct uio *,struct ucred *,int *,int *)); 554int nfs_readdirrpc __P((register struct vnode *,struct uio *,struct ucred *)); 555int nfs_asyncio __P((struct buf *,struct ucred *)); 556int nfs_doio __P((struct buf *,struct ucred *,struct proc *)); 557int nfs_readlinkrpc __P((struct vnode *,struct uio *,struct ucred *)); 558int nfs_sigintr __P((struct nfsmount *,struct nfsreq *r,struct proc *)); 559int nfs_readdirplusrpc __P((struct vnode *,register struct uio *,struct ucred *)); 560int nfsm_disct __P((struct mbuf **,caddr_t *,int,int,caddr_t *)); 561void nfsm_srvfattr __P((struct nfsrv_descript *,struct vattr *,struct nfs_fattr *)); 562void nfsm_srvwcc __P((struct nfsrv_descript *,int,struct vattr *,int,struct vattr *,struct mbuf **,char **)); 563void nfsm_srvpostopattr __P((struct nfsrv_descript *,int,struct vattr *,struct mbuf **,char **)); 564int netaddr_match __P((int,union nethostaddr *,struct mbuf *)); 565int nfs_request __P((struct vnode *,struct mbuf *,int,struct proc *,struct ucred *,struct mbuf **,struct mbuf **,caddr_t *)); 566int nfs_loadattrcache __P((struct vnode **,struct mbuf **,caddr_t *,struct vattr *)); 567int nfs_namei __P((struct nameidata *,fhandle_t *,int,struct nfssvc_sock *,struct mbuf *,struct mbuf **,caddr_t *,struct vnode **,struct proc *,int)); 568void nfsm_adj __P((struct mbuf *,int,int)); 569int nfsm_mbuftouio __P((struct mbuf **,struct uio *,int,caddr_t *)); 570void nfsrv_initcache __P((void)); 571int nfs_getauth __P((struct nfsmount *,struct nfsreq *,struct ucred *,char **,int *,char *,int *,NFSKERBKEY_T)); 572int nfs_getnickauth __P((struct nfsmount *,struct ucred *,char **,int *,char *,int)); 573int nfs_savenickauth __P((struct nfsmount *,struct ucred *,int,NFSKERBKEY_T,struct mbuf **,char **,struct mbuf *)); 574int nfs_adv __P((struct mbuf **,caddr_t *,int,int)); 575void nfs_nhinit __P((void)); 576void nfs_timer __P((void*)); 577u_long nfs_hash __P((nfsfh_t *,int)); 578int nfsrv_dorec __P((struct nfssvc_sock *,struct nfsd *,struct nfsrv_descript **)); 579int nfsrv_getcache __P((struct nfsrv_descript *,struct nfssvc_sock *,struct mbuf **)); 580void nfsrv_updatecache __P((struct nfsrv_descript *,int,struct mbuf *)); 581void nfsrv_cleancache __P((void)); 582int nfs_connect __P((struct nfsmount *,struct nfsreq *)); 583void nfs_disconnect __P((struct nfsmount *)); 584int nfs_getattrcache __P((struct vnode *,struct vattr *)); 585int nfsm_strtmbuf __P((struct mbuf **,char **,char *,long)); 586int nfs_bioread __P((struct vnode *,struct uio *,int,struct ucred *)); 587int nfsm_uiotombuf __P((struct uio *,struct mbuf **,int,caddr_t *)); 588void nfsrv_init __P((int)); 589void nfs_clearcommit __P((struct mount *)); 590int nfsrv_errmap __P((struct nfsrv_descript *, int)); 591void nfsrvw_sort __P((gid_t [],int)); 592void nfsrv_setcred __P((struct ucred *,struct ucred *)); 593int nfs_writebp __P((struct buf *,int)); 594int nfsrv_object_create __P(( struct vnode * )); 595void nfsrv_wakenfsd __P((struct nfssvc_sock *slp)); 596int nfsrv_writegather __P((struct nfsrv_descript **, struct nfssvc_sock *, 597 struct proc *, struct mbuf **)); 598int nfs_fsinfo __P((struct nfsmount *, struct vnode *, struct ucred *, 599 struct proc *p)); 600 601int nfsrv3_access __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 602 struct proc *procp, struct mbuf **mrq)); 603int nfsrv_commit __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 604 struct proc *procp, struct mbuf **mrq)); 605int nfsrv_create __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 606 struct proc *procp, struct mbuf **mrq)); 607int nfsrv_fhtovp __P((fhandle_t *,int,struct vnode **, 608 struct ucred *,struct nfssvc_sock *,struct mbuf *, 609 int *,int)); 610int nfsrv_fsinfo __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 611 struct proc *procp, struct mbuf **mrq)); 612int nfsrv_getattr __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 613 struct proc *procp, struct mbuf **mrq)); 614int nfsrv_link __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 615 struct proc *procp, struct mbuf **mrq)); 616int nfsrv_lookup __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 617 struct proc *procp, struct mbuf **mrq)); 618int nfsrv_mkdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 619 struct proc *procp, struct mbuf **mrq)); 620int nfsrv_mknod __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 621 struct proc *procp, struct mbuf **mrq)); 622int nfsrv_noop __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 623 struct proc *procp, struct mbuf **mrq)); 624int nfsrv_null __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 625 struct proc *procp, struct mbuf **mrq)); 626int nfsrv_pathconf __P((struct nfsrv_descript *nfsd, 627 struct nfssvc_sock *slp, struct proc *procp, 628 struct mbuf **mrq)); 629int nfsrv_read __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 630 struct proc *procp, struct mbuf **mrq)); 631int nfsrv_readdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 632 struct proc *procp, struct mbuf **mrq)); 633int nfsrv_readdirplus __P((struct nfsrv_descript *nfsd, 634 struct nfssvc_sock *slp, struct proc *procp, 635 struct mbuf **mrq)); 636int nfsrv_readlink __P((struct nfsrv_descript *nfsd, 637 struct nfssvc_sock *slp, struct proc *procp, 638 struct mbuf **mrq)); 639int nfsrv_remove __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 640 struct proc *procp, struct mbuf **mrq)); 641int nfsrv_rename __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 642 struct proc *procp, struct mbuf **mrq)); 643int nfsrv_rmdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 644 struct proc *procp, struct mbuf **mrq)); 645int nfsrv_setattr __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 646 struct proc *procp, struct mbuf **mrq)); 647int nfsrv_statfs __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 648 struct proc *procp, struct mbuf **mrq)); 649int nfsrv_symlink __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 650 struct proc *procp, struct mbuf **mrq)); 651int nfsrv_write __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 652 struct proc *procp, struct mbuf **mrq)); 653void nfsrv_rcv __P((struct socket *so, caddr_t arg, int waitflag)); 654void nfsrv_slpderef __P((struct nfssvc_sock *slp)); 655#endif /* KERNEL */ 656 657#endif 658