nfs.h revision 29288
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 1.30 1997/08/16 19:15:54 wollman 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#define B_INVAFTERWRITE B_NOCACHE 97 98/* 99 * The IO_METASYNC flag should be implemented for local file systems. 100 * (Until then, it is nothin at all.) 101 */ 102#ifndef IO_METASYNC 103#define IO_METASYNC 0 104#endif 105 106/* 107 * Set the attribute timeout based on how recently the file has been modified. 108 */ 109#define NFS_ATTRTIMEO(np) \ 110 ((((np)->n_flag & NMODIFIED) || \ 111 (time.tv_sec - (np)->n_mtime) / 10 < NFS_MINATTRTIMO) ? NFS_MINATTRTIMO : \ 112 ((time.tv_sec - (np)->n_mtime) / 10 > NFS_MAXATTRTIMO ? NFS_MAXATTRTIMO : \ 113 (time.tv_sec - (np)->n_mtime) / 10)) 114 115/* 116 * Expected allocation sizes for major data structures. If the actual size 117 * of the structure exceeds these sizes, then malloc() will be allocating 118 * almost twice the memory required. This is used in nfs_init() to warn 119 * the sysadmin that the size of a structure should be reduced. 120 * (These sizes are always a power of 2. If the kernel malloc() changes 121 * to one that does not allocate space in powers of 2 size, then this all 122 * becomes bunk!) 123 */ 124#define NFS_NODEALLOC 256 125#define NFS_MNTALLOC 512 126#define NFS_SVCALLOC 256 127#define NFS_UIDALLOC 128 128 129/* 130 * Arguments to mount NFS 131 */ 132#define NFS_ARGSVERSION 3 /* change when nfs_args changes */ 133struct nfs_args { 134 int version; /* args structure version number */ 135 struct sockaddr *addr; /* file server address */ 136 int addrlen; /* length of address */ 137 int sotype; /* Socket type */ 138 int proto; /* and Protocol */ 139 u_char *fh; /* File handle to be mounted */ 140 int fhsize; /* Size, in bytes, of fh */ 141 int flags; /* flags */ 142 int wsize; /* write size in bytes */ 143 int rsize; /* read size in bytes */ 144 int readdirsize; /* readdir size in bytes */ 145 int timeo; /* initial timeout in .1 secs */ 146 int retrans; /* times to retry send */ 147 int maxgrouplist; /* Max. size of group list */ 148 int readahead; /* # of blocks to readahead */ 149 int leaseterm; /* Term (sec) of lease */ 150 int deadthresh; /* Retrans threshold */ 151 char *hostname; /* server's name */ 152}; 153 154/* 155 * NFS mount option flags 156 */ 157#define NFSMNT_SOFT 0x00000001 /* soft mount (hard is default) */ 158#define NFSMNT_WSIZE 0x00000002 /* set write size */ 159#define NFSMNT_RSIZE 0x00000004 /* set read size */ 160#define NFSMNT_TIMEO 0x00000008 /* set initial timeout */ 161#define NFSMNT_RETRANS 0x00000010 /* set number of request retries */ 162#define NFSMNT_MAXGRPS 0x00000020 /* set maximum grouplist size */ 163#define NFSMNT_INT 0x00000040 /* allow interrupts on hard mount */ 164#define NFSMNT_NOCONN 0x00000080 /* Don't Connect the socket */ 165#define NFSMNT_NQNFS 0x00000100 /* Use Nqnfs protocol */ 166#define NFSMNT_NFSV3 0x00000200 /* Use NFS Version 3 protocol */ 167#define NFSMNT_KERB 0x00000400 /* Use Kerberos authentication */ 168#define NFSMNT_DUMBTIMR 0x00000800 /* Don't estimate rtt dynamically */ 169#define NFSMNT_LEASETERM 0x00001000 /* set lease term (nqnfs) */ 170#define NFSMNT_READAHEAD 0x00002000 /* set read ahead */ 171#define NFSMNT_DEADTHRESH 0x00004000 /* set dead server retry thresh */ 172#define NFSMNT_RESVPORT 0x00008000 /* Allocate a reserved port */ 173#define NFSMNT_RDIRPLUS 0x00010000 /* Use Readdirplus for V3 */ 174#define NFSMNT_READDIRSIZE 0x00020000 /* Set readdir size */ 175#define NFSMNT_INTERNAL 0xfffc0000 /* Bits set internally */ 176#define NFSMNT_HASWRITEVERF 0x00040000 /* Has write verifier for V3 */ 177#define NFSMNT_GOTPATHCONF 0x00080000 /* Got the V3 pathconf info */ 178#define NFSMNT_GOTFSINFO 0x00100000 /* Got the V3 fsinfo */ 179#define NFSMNT_MNTD 0x00200000 /* Mnt server for mnt point */ 180#define NFSMNT_DISMINPROG 0x00400000 /* Dismount in progress */ 181#define NFSMNT_DISMNT 0x00800000 /* Dismounted */ 182#define NFSMNT_SNDLOCK 0x01000000 /* Send socket lock */ 183#define NFSMNT_WANTSND 0x02000000 /* Want above */ 184#define NFSMNT_RCVLOCK 0x04000000 /* Rcv socket lock */ 185#define NFSMNT_WANTRCV 0x08000000 /* Want above */ 186#define NFSMNT_WAITAUTH 0x10000000 /* Wait for authentication */ 187#define NFSMNT_HASAUTH 0x20000000 /* Has authenticator */ 188#define NFSMNT_WANTAUTH 0x40000000 /* Wants an authenticator */ 189#define NFSMNT_AUTHERR 0x80000000 /* Authentication error */ 190 191/* 192 * Structures for the nfssvc(2) syscall. Not that anyone but nfsd and mount_nfs 193 * should ever try and use it. 194 */ 195struct nfsd_args { 196 int sock; /* Socket to serve */ 197 caddr_t name; /* Client addr for connection based sockets */ 198 int namelen; /* Length of name */ 199}; 200 201struct nfsd_srvargs { 202 struct nfsd *nsd_nfsd; /* Pointer to in kernel nfsd struct */ 203 uid_t nsd_uid; /* Effective uid mapped to cred */ 204 u_long nsd_haddr; /* Ip address of client */ 205 struct ucred nsd_cr; /* Cred. uid maps to */ 206 int nsd_authlen; /* Length of auth string (ret) */ 207 u_char *nsd_authstr; /* Auth string (ret) */ 208 int nsd_verflen; /* and the verfier */ 209 u_char *nsd_verfstr; 210 struct timeval nsd_timestamp; /* timestamp from verifier */ 211 u_long nsd_ttl; /* credential ttl (sec) */ 212 NFSKERBKEY_T nsd_key; /* Session key */ 213}; 214 215struct nfsd_cargs { 216 char *ncd_dirp; /* Mount dir path */ 217 uid_t ncd_authuid; /* Effective uid */ 218 int ncd_authtype; /* Type of authenticator */ 219 int ncd_authlen; /* Length of authenticator string */ 220 u_char *ncd_authstr; /* Authenticator string */ 221 int ncd_verflen; /* and the verifier */ 222 u_char *ncd_verfstr; 223 NFSKERBKEY_T ncd_key; /* Session key */ 224}; 225 226/* 227 * XXX to allow amd to include nfs.h without nfsproto.h 228 */ 229#ifdef NFS_NPROCS 230/* 231 * Stats structure 232 */ 233struct nfsstats { 234 int attrcache_hits; 235 int attrcache_misses; 236 int lookupcache_hits; 237 int lookupcache_misses; 238 int direofcache_hits; 239 int direofcache_misses; 240 int biocache_reads; 241 int read_bios; 242 int read_physios; 243 int biocache_writes; 244 int write_bios; 245 int write_physios; 246 int biocache_readlinks; 247 int readlink_bios; 248 int biocache_readdirs; 249 int readdir_bios; 250 int rpccnt[NFS_NPROCS]; 251 int rpcretries; 252 int srvrpccnt[NFS_NPROCS]; 253 int srvrpc_errs; 254 int srv_errs; 255 int rpcrequests; 256 int rpctimeouts; 257 int rpcunexpected; 258 int rpcinvalid; 259 int srvcache_inproghits; 260 int srvcache_idemdonehits; 261 int srvcache_nonidemdonehits; 262 int srvcache_misses; 263 int srvnqnfs_leases; 264 int srvnqnfs_maxleases; 265 int srvnqnfs_getleases; 266 int srvvop_writes; 267}; 268#endif 269 270/* 271 * Flags for nfssvc() system call. 272 */ 273#define NFSSVC_BIOD 0x002 274#define NFSSVC_NFSD 0x004 275#define NFSSVC_ADDSOCK 0x008 276#define NFSSVC_AUTHIN 0x010 277#define NFSSVC_GOTAUTH 0x040 278#define NFSSVC_AUTHINFAIL 0x080 279#define NFSSVC_MNTD 0x100 280 281/* 282 * fs.nfs sysctl(3) identifiers 283 */ 284#define NFS_NFSSTATS 1 /* struct: struct nfsstats */ 285#define NFS_NFSPRIVPORT 2 /* int: prohibit nfs to resvports */ 286 287#define FS_NFS_NAMES { \ 288 { 0, 0 }, \ 289 { "nfsstats", CTLTYPE_STRUCT }, \ 290 { "nfsprivport", CTLTYPE_INT }, \ 291} 292 293/* 294 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts. 295 * What should be in this set is open to debate, but I believe that since 296 * I/O system calls on ufs are never interrupted by signals the set should 297 * be minimal. My reasoning is that many current programs that use signals 298 * such as SIGALRM will not expect file I/O system calls to be interrupted 299 * by them and break. 300 */ 301#ifdef KERNEL 302 303struct uio; struct buf; struct vattr; struct nameidata; /* XXX */ 304 305#define NFSINT_SIGMASK (sigmask(SIGINT)|sigmask(SIGTERM)|sigmask(SIGKILL)| \ 306 sigmask(SIGHUP)|sigmask(SIGQUIT)) 307 308/* 309 * Socket errors ignored for connectionless sockets?? 310 * For now, ignore them all 311 */ 312#define NFSIGNORE_SOERROR(s, e) \ 313 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \ 314 ((s) & PR_CONNREQUIRED) == 0) 315 316/* 317 * Nfs outstanding request list element 318 */ 319struct nfsreq { 320 TAILQ_ENTRY(nfsreq) r_chain; 321 struct mbuf *r_mreq; 322 struct mbuf *r_mrep; 323 struct mbuf *r_md; 324 caddr_t r_dpos; 325 struct nfsmount *r_nmp; 326 struct vnode *r_vp; 327 u_long r_xid; 328 int r_flags; /* flags on request, see below */ 329 int r_retry; /* max retransmission count */ 330 int r_rexmit; /* current retrans count */ 331 int r_timer; /* tick counter on reply */ 332 u_int32_t r_procnum; /* NFS procedure number */ 333 int r_rtt; /* RTT for rpc */ 334 struct proc *r_procp; /* Proc that did I/O system call */ 335}; 336 337/* 338 * Queue head for nfsreq's 339 */ 340extern TAILQ_HEAD(nfs_reqq, nfsreq) nfs_reqq; 341 342/* Flag values for r_flags */ 343#define R_TIMING 0x01 /* timing request (in mntp) */ 344#define R_SENT 0x02 /* request has been sent */ 345#define R_SOFTTERM 0x04 /* soft mnt, too many retries */ 346#define R_INTR 0x08 /* intr mnt, signal pending */ 347#define R_SOCKERR 0x10 /* Fatal error on socket */ 348#define R_TPRINTFMSG 0x20 /* Did a tprintf msg. */ 349#define R_MUSTRESEND 0x40 /* Must resend request */ 350#define R_GETONEREP 0x80 /* Probe for one reply only */ 351 352/* 353 * A list of nfssvc_sock structures is maintained with all the sockets 354 * that require service by the nfsd. 355 * The nfsuid structs hang off of the nfssvc_sock structs in both lru 356 * and uid hash lists. 357 */ 358#ifndef NFS_UIDHASHSIZ 359#define NFS_UIDHASHSIZ 29 /* Tune the size of nfssvc_sock with this */ 360#endif 361#define NUIDHASH(sock, uid) \ 362 (&(sock)->ns_uidhashtbl[(uid) % NFS_UIDHASHSIZ]) 363#ifndef NFS_WDELAYHASHSIZ 364#define NFS_WDELAYHASHSIZ 16 /* and with this */ 365#endif 366#define NWDELAYHASH(sock, f) \ 367 (&(sock)->ns_wdelayhashtbl[(*((u_long *)(f))) % NFS_WDELAYHASHSIZ]) 368#ifndef NFS_MUIDHASHSIZ 369#define NFS_MUIDHASHSIZ 63 /* Tune the size of nfsmount with this */ 370#endif 371#define NMUIDHASH(nmp, uid) \ 372 (&(nmp)->nm_uidhashtbl[(uid) % NFS_MUIDHASHSIZ]) 373#define NFSNOHASH(fhsum) \ 374 (&nfsnodehashtbl[(fhsum) & nfsnodehash]) 375 376/* 377 * Network address hash list element 378 */ 379union nethostaddr { 380 u_long had_inetaddr; 381 struct sockaddr *had_nam; 382}; 383 384struct nfsuid { 385 TAILQ_ENTRY(nfsuid) nu_lru; /* LRU chain */ 386 LIST_ENTRY(nfsuid) nu_hash; /* Hash list */ 387 int nu_flag; /* Flags */ 388 union nethostaddr nu_haddr; /* Host addr. for dgram sockets */ 389 struct ucred nu_cr; /* Cred uid mapped to */ 390 int nu_expire; /* Expiry time (sec) */ 391 struct timeval nu_timestamp; /* Kerb. timestamp */ 392 u_long nu_nickname; /* Nickname on server */ 393 NFSKERBKEY_T nu_key; /* and session key */ 394}; 395 396#define nu_inetaddr nu_haddr.had_inetaddr 397#define nu_nam nu_haddr.had_nam 398/* Bits for nu_flag */ 399#define NU_INETADDR 0x1 400#define NU_NAM 0x2 401#define NU_NETFAM(u) (((u)->nu_flag & NU_INETADDR) ? AF_INET : AF_ISO) 402 403struct nfsrv_rec { 404 STAILQ_ENTRY(nfsrv_rec) nr_link; 405 struct sockaddr *nr_address; 406 struct mbuf *nr_packet; 407}; 408 409struct nfssvc_sock { 410 TAILQ_ENTRY(nfssvc_sock) ns_chain; /* List of all nfssvc_sock's */ 411 TAILQ_HEAD(, nfsuid) ns_uidlruhead; 412 struct file *ns_fp; 413 struct socket *ns_so; 414 struct sockaddr *ns_nam; 415 struct mbuf *ns_raw; 416 struct mbuf *ns_rawend; 417 STAILQ_HEAD(, nfsrv_rec) ns_rec; 418 struct mbuf *ns_frag; 419 int ns_flag; 420 int ns_solock; 421 int ns_cc; 422 int ns_reclen; 423 int ns_numuids; 424 u_long ns_sref; 425 LIST_HEAD(, nfsrv_descript) ns_tq; /* Write gather lists */ 426 LIST_HEAD(, nfsuid) ns_uidhashtbl[NFS_UIDHASHSIZ]; 427 LIST_HEAD(nfsrvw_delayhash, nfsrv_descript) ns_wdelayhashtbl[NFS_WDELAYHASHSIZ]; 428}; 429 430/* Bits for "ns_flag" */ 431#define SLP_VALID 0x01 432#define SLP_DOREC 0x02 433#define SLP_NEEDQ 0x04 434#define SLP_DISCONN 0x08 435#define SLP_GETSTREAM 0x10 436#define SLP_LASTFRAG 0x20 437#define SLP_ALLFLAGS 0xff 438 439extern TAILQ_HEAD(nfssvc_sockhead, nfssvc_sock) nfssvc_sockhead; 440extern int nfssvc_sockhead_flag; 441#define SLP_INIT 0x01 442#define SLP_WANTINIT 0x02 443 444/* 445 * One of these structures is allocated for each nfsd. 446 */ 447struct nfsd { 448 TAILQ_ENTRY(nfsd) nfsd_chain; /* List of all nfsd's */ 449 int nfsd_flag; /* NFSD_ flags */ 450 struct nfssvc_sock *nfsd_slp; /* Current socket */ 451 int nfsd_authlen; /* Authenticator len */ 452 u_char nfsd_authstr[RPCAUTH_MAXSIZ]; /* Authenticator data */ 453 int nfsd_verflen; /* and the Verifier */ 454 u_char nfsd_verfstr[RPCVERF_MAXSIZ]; 455 struct proc *nfsd_procp; /* Proc ptr */ 456 struct nfsrv_descript *nfsd_nd; /* Associated nfsrv_descript */ 457}; 458 459/* Bits for "nfsd_flag" */ 460#define NFSD_WAITING 0x01 461#define NFSD_REQINPROG 0x02 462#define NFSD_NEEDAUTH 0x04 463#define NFSD_AUTHFAIL 0x08 464 465/* 466 * This structure is used by the server for describing each request. 467 * Some fields are used only when write request gathering is performed. 468 */ 469struct nfsrv_descript { 470 u_quad_t nd_time; /* Write deadline (usec) */ 471 off_t nd_off; /* Start byte offset */ 472 off_t nd_eoff; /* and end byte offset */ 473 LIST_ENTRY(nfsrv_descript) nd_hash; /* Hash list */ 474 LIST_ENTRY(nfsrv_descript) nd_tq; /* and timer list */ 475 LIST_HEAD(,nfsrv_descript) nd_coalesce; /* coalesced writes */ 476 struct mbuf *nd_mrep; /* Request mbuf list */ 477 struct mbuf *nd_md; /* Current dissect mbuf */ 478 struct mbuf *nd_mreq; /* Reply mbuf list */ 479 struct sockaddr *nd_nam; /* and socket addr */ 480 struct sockaddr *nd_nam2; /* return socket addr */ 481 caddr_t nd_dpos; /* Current dissect pos */ 482 u_int32_t nd_procnum; /* RPC # */ 483 int nd_stable; /* storage type */ 484 int nd_flag; /* nd_flag */ 485 int nd_len; /* Length of this write */ 486 int nd_repstat; /* Reply status */ 487 u_long nd_retxid; /* Reply xid */ 488 u_long nd_duration; /* Lease duration */ 489 struct timeval nd_starttime; /* Time RPC initiated */ 490 fhandle_t nd_fh; /* File handle */ 491 struct ucred nd_cr; /* Credentials */ 492}; 493 494/* Bits for "nd_flag" */ 495#define ND_READ LEASE_READ 496#define ND_WRITE LEASE_WRITE 497#define ND_CHECK 0x04 498#define ND_LEASE (ND_READ | ND_WRITE | ND_CHECK) 499#define ND_NFSV3 0x08 500#define ND_NQNFS 0x10 501#define ND_KERBNICK 0x20 502#define ND_KERBFULL 0x40 503#define ND_KERBAUTH (ND_KERBNICK | ND_KERBFULL) 504 505extern TAILQ_HEAD(nfsd_head, nfsd) nfsd_head; 506extern int nfsd_head_flag; 507#define NFSD_CHECKSLP 0x01 508 509/* 510 * These macros compare nfsrv_descript structures. 511 */ 512#define NFSW_CONTIG(o, n) \ 513 ((o)->nd_eoff >= (n)->nd_off && \ 514 !bcmp((caddr_t)&(o)->nd_fh, (caddr_t)&(n)->nd_fh, NFSX_V3FH)) 515 516#define NFSW_SAMECRED(o, n) \ 517 (((o)->nd_flag & ND_KERBAUTH) == ((n)->nd_flag & ND_KERBAUTH) && \ 518 !bcmp((caddr_t)&(o)->nd_cr, (caddr_t)&(n)->nd_cr, \ 519 sizeof (struct ucred))) 520 521/* 522 * Defines for WebNFS 523 */ 524 525#define WEBNFS_ESC_CHAR '%' 526#define WEBNFS_SPECCHAR_START 0x80 527 528#define WEBNFS_NATIVE_CHAR 0x80 529/* 530 * .. 531 * Possibly more here in the future. 532 */ 533 534/* 535 * Macro for converting escape characters in WebNFS pathnames. 536 * Should really be in libkern. 537 */ 538 539#define HEXTOC(c) \ 540 ((c) >= 'a' ? ((c) - ('a' - 10)) : \ 541 ((c) >= 'A' ? ((c) - ('A' - 10)) : ((c) - '0'))) 542#define HEXSTRTOI(p) \ 543 ((HEXTOC(p[0]) << 4) + HEXTOC(p[1])) 544 545#ifdef NFS_DEBUG 546 547extern int nfs_debug; 548#define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */ 549#define NFS_DEBUG_WG 2 /* server write gathering */ 550#define NFS_DEBUG_RC 4 /* server request caching */ 551 552#define NFS_DPF(cat, args) \ 553 do { \ 554 if (nfs_debug & NFS_DEBUG_##cat) printf args; \ 555 } while (0) 556 557#else 558 559#define NFS_DPF(cat, args) 560 561#endif 562 563int nfs_init __P((struct vfsconf *vfsp)); 564int nfs_reply __P((struct nfsreq *)); 565int nfs_getreq __P((struct nfsrv_descript *,struct nfsd *,int)); 566int nfs_send __P((struct socket *, struct sockaddr *, struct mbuf *, 567 struct nfsreq *)); 568int nfs_rephead __P((int, struct nfsrv_descript *, struct nfssvc_sock *, 569 int, int, u_quad_t *, struct mbuf **, struct mbuf **, 570 caddr_t *)); 571int nfs_sndlock __P((int *, struct nfsreq *)); 572void nfs_sndunlock __P((int *flagp)); 573int nfs_disct __P((struct mbuf **, caddr_t *, int, int, caddr_t *)); 574int nfs_vinvalbuf __P((struct vnode *, int, struct ucred *, struct proc *, 575 int)); 576int nfs_readrpc __P((struct vnode *, struct uio *, struct ucred *)); 577int nfs_writerpc __P((struct vnode *, struct uio *, struct ucred *, int *, 578 int *)); 579int nfs_readdirrpc __P((struct vnode *, struct uio *, struct ucred *)); 580int nfs_asyncio __P((struct buf *, struct ucred *)); 581int nfs_doio __P((struct buf *, struct ucred *, struct proc *)); 582int nfs_readlinkrpc __P((struct vnode *, struct uio *, struct ucred *)); 583int nfs_sigintr __P((struct nfsmount *, struct nfsreq *, struct proc *)); 584int nfs_readdirplusrpc __P((struct vnode *, struct uio *, struct ucred *)); 585int nfsm_disct __P((struct mbuf **, caddr_t *, int, int, caddr_t *)); 586void nfsm_srvfattr __P((struct nfsrv_descript *, struct vattr *, 587 struct nfs_fattr *)); 588void nfsm_srvwcc __P((struct nfsrv_descript *, int, struct vattr *, int, 589 struct vattr *, struct mbuf **, char **)); 590void nfsm_srvpostopattr __P((struct nfsrv_descript *, int, struct vattr *, 591 struct mbuf **, char **)); 592int netaddr_match __P((int, union nethostaddr *, struct sockaddr *)); 593int nfs_request __P((struct vnode *, struct mbuf *, int, struct proc *, 594 struct ucred *, struct mbuf **, struct mbuf **, 595 caddr_t *)); 596int nfs_loadattrcache __P((struct vnode **, struct mbuf **, caddr_t *, 597 struct vattr *)); 598int nfs_namei __P((struct nameidata *, fhandle_t *, int, 599 struct nfssvc_sock *, struct sockaddr *, struct mbuf **, 600 caddr_t *, struct vnode **, struct proc *, int, int)); 601void nfsm_adj __P((struct mbuf *, int, int)); 602int nfsm_mbuftouio __P((struct mbuf **, struct uio *, int, caddr_t *)); 603void nfsrv_initcache __P((void)); 604int nfs_getauth __P((struct nfsmount *, struct nfsreq *, struct ucred *, 605 char **, int *, char *, int *, NFSKERBKEY_T)); 606int nfs_getnickauth __P((struct nfsmount *, struct ucred *, char **, 607 int *, char *, int)); 608int nfs_savenickauth __P((struct nfsmount *, struct ucred *, int, 609 NFSKERBKEY_T, struct mbuf **, char **, 610 struct mbuf *)); 611int nfs_adv __P((struct mbuf **, caddr_t *, int, int)); 612void nfs_nhinit __P((void)); 613void nfs_timer __P((void*)); 614u_long nfs_hash __P((nfsfh_t *, int)); 615int nfsrv_dorec __P((struct nfssvc_sock *, struct nfsd *, 616 struct nfsrv_descript **)); 617int nfsrv_getcache __P((struct nfsrv_descript *, struct nfssvc_sock *, 618 struct mbuf **)); 619void nfsrv_updatecache __P((struct nfsrv_descript *, int, struct mbuf *)); 620void nfsrv_cleancache __P((void)); 621int nfs_connect __P((struct nfsmount *, struct nfsreq *)); 622void nfs_disconnect __P((struct nfsmount *)); 623int nfs_getattrcache __P((struct vnode *, struct vattr *)); 624int nfsm_strtmbuf __P((struct mbuf **, char **, char *, long)); 625int nfs_bioread __P((struct vnode *, struct uio *, int, struct ucred *, 626 int)); 627int nfsm_uiotombuf __P((struct uio *, struct mbuf **, int, caddr_t *)); 628void nfsrv_init __P((int)); 629void nfs_clearcommit __P((struct mount *)); 630int nfsrv_errmap __P((struct nfsrv_descript *, int)); 631void nfsrvw_sort __P((gid_t *, int)); 632void nfsrv_setcred __P((struct ucred *, struct ucred *)); 633int nfs_writebp __P((struct buf *, int)); 634int nfsrv_object_create __P((struct vnode *)); 635void nfsrv_wakenfsd __P((struct nfssvc_sock *slp)); 636int nfsrv_writegather __P((struct nfsrv_descript **, struct nfssvc_sock *, 637 struct proc *, struct mbuf **)); 638int nfs_fsinfo __P((struct nfsmount *, struct vnode *, struct ucred *, 639 struct proc *p)); 640 641int nfsrv3_access __P((struct nfsrv_descript *nfsd, 642 struct nfssvc_sock *slp, 643 struct proc *procp, struct mbuf **mrq)); 644int nfsrv_commit __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 645 struct proc *procp, struct mbuf **mrq)); 646int nfsrv_create __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 647 struct proc *procp, struct mbuf **mrq)); 648int nfsrv_fhtovp __P((fhandle_t *, int, struct vnode **, struct ucred *, 649 struct nfssvc_sock *, struct sockaddr *, int *, 650 int, int)); 651int nfsrv_setpublicfs __P((struct mount *, struct netexport *, 652 struct export_args *)); 653int nfs_ispublicfh __P((fhandle_t *)); 654int nfsrv_fsinfo __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 655 struct proc *procp, struct mbuf **mrq)); 656int nfsrv_getattr __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 657 struct proc *procp, struct mbuf **mrq)); 658int nfsrv_link __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 659 struct proc *procp, struct mbuf **mrq)); 660int nfsrv_lookup __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 661 struct proc *procp, struct mbuf **mrq)); 662int nfsrv_mkdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 663 struct proc *procp, struct mbuf **mrq)); 664int nfsrv_mknod __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 665 struct proc *procp, struct mbuf **mrq)); 666int nfsrv_noop __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 667 struct proc *procp, struct mbuf **mrq)); 668int nfsrv_null __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 669 struct proc *procp, struct mbuf **mrq)); 670int nfsrv_pathconf __P((struct nfsrv_descript *nfsd, 671 struct nfssvc_sock *slp, struct proc *procp, 672 struct mbuf **mrq)); 673int nfsrv_read __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 674 struct proc *procp, struct mbuf **mrq)); 675int nfsrv_readdir __P((struct nfsrv_descript *nfsd, 676 struct nfssvc_sock *slp, 677 struct proc *procp, struct mbuf **mrq)); 678int nfsrv_readdirplus __P((struct nfsrv_descript *nfsd, 679 struct nfssvc_sock *slp, struct proc *procp, 680 struct mbuf **mrq)); 681int nfsrv_readlink __P((struct nfsrv_descript *nfsd, 682 struct nfssvc_sock *slp, struct proc *procp, 683 struct mbuf **mrq)); 684int nfsrv_remove __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 685 struct proc *procp, struct mbuf **mrq)); 686int nfsrv_rename __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 687 struct proc *procp, struct mbuf **mrq)); 688int nfsrv_rmdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 689 struct proc *procp, struct mbuf **mrq)); 690int nfsrv_setattr __P((struct nfsrv_descript *nfsd, 691 struct nfssvc_sock *slp, 692 struct proc *procp, struct mbuf **mrq)); 693int nfsrv_statfs __P((struct nfsrv_descript *nfsd, 694 struct nfssvc_sock *slp, 695 struct proc *procp, struct mbuf **mrq)); 696int nfsrv_symlink __P((struct nfsrv_descript *nfsd, 697 struct nfssvc_sock *slp, 698 struct proc *procp, struct mbuf **mrq)); 699int nfsrv_write __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 700 struct proc *procp, struct mbuf **mrq)); 701void nfsrv_rcv __P((struct socket *so, caddr_t arg, int waitflag)); 702void nfsrv_slpderef __P((struct nfssvc_sock *slp)); 703#endif /* KERNEL */ 704 705#endif 706