nfs.h revision 46349
1/* 2 * Copyright (c) 1989, 1993, 1995 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Rick Macklem at The University of Guelph. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)nfs.h 8.4 (Berkeley) 5/1/95 37 * $Id: nfs.h,v 1.45 1999/02/25 00:03:50 peter Exp $ 38 */ 39 40#ifndef _NFS_NFS_H_ 41#define _NFS_NFS_H_ 42 43#ifdef KERNEL 44#include "opt_nfs.h" 45#endif 46 47/* 48 * Tunable constants for nfs 49 */ 50 51#define NFS_MAXIOVEC 34 52#define NFS_TICKINTVL 5 /* Desired time for a tick (msec) */ 53#define NFS_HZ (hz / nfs_ticks) /* Ticks/sec */ 54#define NFS_TIMEO (1 * NFS_HZ) /* Default timeout = 1 second */ 55#define NFS_MINTIMEO (1 * NFS_HZ) /* Min timeout to use */ 56#define NFS_MAXTIMEO (60 * NFS_HZ) /* Max timeout to backoff to */ 57#define NFS_MINIDEMTIMEO (5 * NFS_HZ) /* Min timeout for non-idempotent ops*/ 58#define NFS_MAXREXMIT 100 /* Stop counting after this many */ 59#define NFS_MAXWINDOW 1024 /* Max number of outstanding requests */ 60#define NFS_RETRANS 10 /* Num of retrans for soft mounts */ 61#define NFS_MAXGRPS 16 /* Max. size of groups list */ 62#ifndef NFS_MINATTRTIMO 63#define NFS_MINATTRTIMO 3 /* VREG attrib cache timeout in sec */ 64#endif 65#ifndef NFS_MAXATTRTIMO 66#define NFS_MAXATTRTIMO 60 67#endif 68#ifndef NFS_MINDIRATTRTIMO 69#define NFS_MINDIRATTRTIMO 30 /* VDIR attrib cache timeout in sec */ 70#endif 71#ifndef NFS_MAXDIRATTRTIMO 72#define NFS_MAXDIRATTRTIMO 60 73#endif 74#define NFS_WSIZE 8192 /* Def. write data size <= 8192 */ 75#define NFS_RSIZE 8192 /* Def. read data size <= 8192 */ 76#define NFS_READDIRSIZE 8192 /* Def. readdir size */ 77#define NFS_DEFRAHEAD 1 /* Def. read ahead # blocks */ 78#define NFS_MAXRAHEAD 4 /* Max. read ahead # blocks */ 79#define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */ 80#define NFS_MAXASYNCDAEMON 20 /* Max. number async_daemons runnable */ 81#define NFS_MAXGATHERDELAY 100 /* Max. write gather delay (msec) */ 82#ifndef NFS_GATHERDELAY 83#define NFS_GATHERDELAY 10 /* Default write gather delay (msec) */ 84#endif 85#define NFS_DIRBLKSIZ 4096 /* Must be a multiple of DIRBLKSIZ */ 86#ifdef KERNEL 87#define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */ 88#endif 89 90/* 91 * Oddballs 92 */ 93#define NMOD(a) ((a) % nfs_asyncdaemons) 94#define NFS_CMPFH(n, f, s) \ 95 ((n)->n_fhsize == (s) && !bcmp((caddr_t)(n)->n_fhp, (caddr_t)(f), (s))) 96#define NFS_ISV3(v) (VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV3) 97#define NFS_SRVMAXDATA(n) \ 98 (((n)->nd_flag & ND_NFSV3) ? (((n)->nd_nam2) ? \ 99 NFS_MAXDGRAMDATA : NFS_MAXDATA) : NFS_V2MAXDATA) 100 101/* 102 * XXX 103 * The B_INVAFTERWRITE flag should be set to whatever is required by the 104 * buffer cache code to say "Invalidate the block after it is written back". 105 */ 106#define B_INVAFTERWRITE B_NOCACHE 107 108/* 109 * The IO_METASYNC flag should be implemented for local file systems. 110 * (Until then, it is nothin at all.) 111 */ 112#ifndef IO_METASYNC 113#define IO_METASYNC 0 114#endif 115 116/* 117 * Expected allocation sizes for major data structures. If the actual size 118 * of the structure exceeds these sizes, then malloc() will be allocating 119 * almost twice the memory required. This is used in nfs_init() to warn 120 * the sysadmin that the size of a structure should be reduced. 121 * (These sizes are always a power of 2. If the kernel malloc() changes 122 * to one that does not allocate space in powers of 2 size, then this all 123 * becomes bunk!) 124 */ 125#define NFS_SVCALLOC 256 126#define NFS_UIDALLOC 128 127 128/* 129 * Arguments to mount NFS 130 */ 131#define NFS_ARGSVERSION 3 /* change when nfs_args changes */ 132struct nfs_args { 133 int version; /* args structure version number */ 134 struct sockaddr *addr; /* file server address */ 135 int addrlen; /* length of address */ 136 int sotype; /* Socket type */ 137 int proto; /* and Protocol */ 138 u_char *fh; /* File handle to be mounted */ 139 int fhsize; /* Size, in bytes, of fh */ 140 int flags; /* flags */ 141 int wsize; /* write size in bytes */ 142 int rsize; /* read size in bytes */ 143 int readdirsize; /* readdir size in bytes */ 144 int timeo; /* initial timeout in .1 secs */ 145 int retrans; /* times to retry send */ 146 int maxgrouplist; /* Max. size of group list */ 147 int readahead; /* # of blocks to readahead */ 148 int leaseterm; /* Term (sec) of lease */ 149 int deadthresh; /* Retrans threshold */ 150 char *hostname; /* server's name */ 151 int acregmin; /* cache attrs for reg files min time */ 152 int acregmax; /* cache attrs for reg files max time */ 153 int acdirmin; /* cache attrs for dirs min time */ 154 int acdirmax; /* cache attrs for dirs max time */ 155}; 156 157/* 158 * NFS mount option flags 159 */ 160#define NFSMNT_SOFT 0x00000001 /* soft mount (hard is default) */ 161#define NFSMNT_WSIZE 0x00000002 /* set write size */ 162#define NFSMNT_RSIZE 0x00000004 /* set read size */ 163#define NFSMNT_TIMEO 0x00000008 /* set initial timeout */ 164#define NFSMNT_RETRANS 0x00000010 /* set number of request retries */ 165#define NFSMNT_MAXGRPS 0x00000020 /* set maximum grouplist size */ 166#define NFSMNT_INT 0x00000040 /* allow interrupts on hard mount */ 167#define NFSMNT_NOCONN 0x00000080 /* Don't Connect the socket */ 168#define NFSMNT_NQNFS 0x00000100 /* Use Nqnfs protocol */ 169#define NFSMNT_NFSV3 0x00000200 /* Use NFS Version 3 protocol */ 170#define NFSMNT_KERB 0x00000400 /* Use Kerberos authentication */ 171#define NFSMNT_DUMBTIMR 0x00000800 /* Don't estimate rtt dynamically */ 172#define NFSMNT_LEASETERM 0x00001000 /* set lease term (nqnfs) */ 173#define NFSMNT_READAHEAD 0x00002000 /* set read ahead */ 174#define NFSMNT_DEADTHRESH 0x00004000 /* set dead server retry thresh */ 175#define NFSMNT_RESVPORT 0x00008000 /* Allocate a reserved port */ 176#define NFSMNT_RDIRPLUS 0x00010000 /* Use Readdirplus for V3 */ 177#define NFSMNT_READDIRSIZE 0x00020000 /* Set readdir size */ 178#define NFSMNT_ACREGMIN 0x00040000 179#define NFSMNT_ACREGMAX 0x00080000 180#define NFSMNT_ACDIRMIN 0x00100000 181#define NFSMNT_ACDIRMAX 0x00200000 182 183#define NFSSTA_HASWRITEVERF 0x00040000 /* Has write verifier for V3 */ 184#define NFSSTA_GOTPATHCONF 0x00080000 /* Got the V3 pathconf info */ 185#define NFSSTA_GOTFSINFO 0x00100000 /* Got the V3 fsinfo */ 186#define NFSSTA_MNTD 0x00200000 /* Mnt server for mnt point */ 187#define NFSSTA_DISMINPROG 0x00400000 /* Dismount in progress */ 188#define NFSSTA_DISMNT 0x00800000 /* Dismounted */ 189#define NFSSTA_SNDLOCK 0x01000000 /* Send socket lock */ 190#define NFSSTA_WANTSND 0x02000000 /* Want above */ 191#define NFSSTA_RCVLOCK 0x04000000 /* Rcv socket lock */ 192#define NFSSTA_WANTRCV 0x08000000 /* Want above */ 193#define NFSSTA_WAITAUTH 0x10000000 /* Wait for authentication */ 194#define NFSSTA_HASAUTH 0x20000000 /* Has authenticator */ 195#define NFSSTA_WANTAUTH 0x40000000 /* Wants an authenticator */ 196#define NFSSTA_AUTHERR 0x80000000 /* Authentication error */ 197 198/* 199 * Structures for the nfssvc(2) syscall. Not that anyone but nfsd and mount_nfs 200 * should ever try and use it. 201 */ 202struct nfsd_args { 203 int sock; /* Socket to serve */ 204 caddr_t name; /* Client addr for connection based sockets */ 205 int namelen; /* Length of name */ 206}; 207 208struct nfsd_srvargs { 209 struct nfsd *nsd_nfsd; /* Pointer to in kernel nfsd struct */ 210 uid_t nsd_uid; /* Effective uid mapped to cred */ 211 u_int32_t nsd_haddr; /* Ip address of client */ 212 struct ucred nsd_cr; /* Cred. uid maps to */ 213 int nsd_authlen; /* Length of auth string (ret) */ 214 u_char *nsd_authstr; /* Auth string (ret) */ 215 int nsd_verflen; /* and the verfier */ 216 u_char *nsd_verfstr; 217 struct timeval nsd_timestamp; /* timestamp from verifier */ 218 u_int32_t nsd_ttl; /* credential ttl (sec) */ 219 NFSKERBKEY_T nsd_key; /* Session key */ 220}; 221 222struct nfsd_cargs { 223 char *ncd_dirp; /* Mount dir path */ 224 uid_t ncd_authuid; /* Effective uid */ 225 int ncd_authtype; /* Type of authenticator */ 226 int ncd_authlen; /* Length of authenticator string */ 227 u_char *ncd_authstr; /* Authenticator string */ 228 int ncd_verflen; /* and the verifier */ 229 u_char *ncd_verfstr; 230 NFSKERBKEY_T ncd_key; /* Session key */ 231}; 232 233/* 234 * XXX to allow amd to include nfs.h without nfsproto.h 235 */ 236#ifdef NFS_NPROCS 237/* 238 * Stats structure 239 */ 240struct nfsstats { 241 int attrcache_hits; 242 int attrcache_misses; 243 int lookupcache_hits; 244 int lookupcache_misses; 245 int direofcache_hits; 246 int direofcache_misses; 247 int biocache_reads; 248 int read_bios; 249 int read_physios; 250 int biocache_writes; 251 int write_bios; 252 int write_physios; 253 int biocache_readlinks; 254 int readlink_bios; 255 int biocache_readdirs; 256 int readdir_bios; 257 int rpccnt[NFS_NPROCS]; 258 int rpcretries; 259 int srvrpccnt[NFS_NPROCS]; 260 int srvrpc_errs; 261 int srv_errs; 262 int rpcrequests; 263 int rpctimeouts; 264 int rpcunexpected; 265 int rpcinvalid; 266 int srvcache_inproghits; 267 int srvcache_idemdonehits; 268 int srvcache_nonidemdonehits; 269 int srvcache_misses; 270 int srvnqnfs_leases; 271 int srvnqnfs_maxleases; 272 int srvnqnfs_getleases; 273 int srvvop_writes; 274}; 275#endif 276 277/* 278 * Flags for nfssvc() system call. 279 */ 280#define NFSSVC_BIOD 0x002 281#define NFSSVC_NFSD 0x004 282#define NFSSVC_ADDSOCK 0x008 283#define NFSSVC_AUTHIN 0x010 284#define NFSSVC_GOTAUTH 0x040 285#define NFSSVC_AUTHINFAIL 0x080 286#define NFSSVC_MNTD 0x100 287 288/* 289 * fs.nfs sysctl(3) identifiers 290 */ 291#define NFS_NFSSTATS 1 /* struct: struct nfsstats */ 292#define NFS_NFSPRIVPORT 2 /* int: prohibit nfs to resvports */ 293 294#define FS_NFS_NAMES { \ 295 { 0, 0 }, \ 296 { "nfsstats", CTLTYPE_STRUCT }, \ 297 { "nfsprivport", CTLTYPE_INT }, \ 298} 299 300#ifdef KERNEL 301 302#ifdef MALLOC_DECLARE 303MALLOC_DECLARE(M_NFSREQ); 304MALLOC_DECLARE(M_NFSDIROFF); 305MALLOC_DECLARE(M_NFSRVDESC); 306MALLOC_DECLARE(M_NFSUID); 307MALLOC_DECLARE(M_NQLEASE); 308MALLOC_DECLARE(M_NFSD); 309MALLOC_DECLARE(M_NFSBIGFH); 310MALLOC_DECLARE(M_NFSHASH); 311#endif 312 313#ifdef ZONE_INTERRUPT 314extern vm_zone_t nfsmount_zone; 315#endif 316 317extern struct callout_handle nfs_timer_handle; 318 319struct uio; struct buf; struct vattr; struct nameidata; /* XXX */ 320 321/* 322 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts. 323 * What should be in this set is open to debate, but I believe that since 324 * I/O system calls on ufs are never interrupted by signals the set should 325 * be minimal. My reasoning is that many current programs that use signals 326 * such as SIGALRM will not expect file I/O system calls to be interrupted 327 * by them and break. 328 */ 329#define NFSINT_SIGMASK (sigmask(SIGINT)|sigmask(SIGTERM)|sigmask(SIGKILL)| \ 330 sigmask(SIGHUP)|sigmask(SIGQUIT)) 331 332/* 333 * Socket errors ignored for connectionless sockets?? 334 * For now, ignore them all 335 */ 336#define NFSIGNORE_SOERROR(s, e) \ 337 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \ 338 ((s) & PR_CONNREQUIRED) == 0) 339 340/* 341 * Nfs outstanding request list element 342 */ 343struct nfsreq { 344 TAILQ_ENTRY(nfsreq) r_chain; 345 struct mbuf *r_mreq; 346 struct mbuf *r_mrep; 347 struct mbuf *r_md; 348 caddr_t r_dpos; 349 struct nfsmount *r_nmp; 350 struct vnode *r_vp; 351 u_int32_t r_xid; 352 int r_flags; /* flags on request, see below */ 353 int r_retry; /* max retransmission count */ 354 int r_rexmit; /* current retrans count */ 355 int r_timer; /* tick counter on reply */ 356 u_int32_t r_procnum; /* NFS procedure number */ 357 int r_rtt; /* RTT for rpc */ 358 struct proc *r_procp; /* Proc that did I/O system call */ 359}; 360 361/* 362 * Queue head for nfsreq's 363 */ 364extern TAILQ_HEAD(nfs_reqq, nfsreq) nfs_reqq; 365 366/* Flag values for r_flags */ 367#define R_TIMING 0x01 /* timing request (in mntp) */ 368#define R_SENT 0x02 /* request has been sent */ 369#define R_SOFTTERM 0x04 /* soft mnt, too many retries */ 370#define R_INTR 0x08 /* intr mnt, signal pending */ 371#define R_SOCKERR 0x10 /* Fatal error on socket */ 372#define R_TPRINTFMSG 0x20 /* Did a tprintf msg. */ 373#define R_MUSTRESEND 0x40 /* Must resend request */ 374#define R_GETONEREP 0x80 /* Probe for one reply only */ 375 376/* 377 * A list of nfssvc_sock structures is maintained with all the sockets 378 * that require service by the nfsd. 379 * The nfsuid structs hang off of the nfssvc_sock structs in both lru 380 * and uid hash lists. 381 */ 382#ifndef NFS_UIDHASHSIZ 383#define NFS_UIDHASHSIZ 29 /* Tune the size of nfssvc_sock with this */ 384#endif 385#define NUIDHASH(sock, uid) \ 386 (&(sock)->ns_uidhashtbl[(uid) % NFS_UIDHASHSIZ]) 387#ifndef NFS_WDELAYHASHSIZ 388#define NFS_WDELAYHASHSIZ 16 /* and with this */ 389#endif 390#define NWDELAYHASH(sock, f) \ 391 (&(sock)->ns_wdelayhashtbl[(*((u_int32_t *)(f))) % NFS_WDELAYHASHSIZ]) 392#ifndef NFS_MUIDHASHSIZ 393#define NFS_MUIDHASHSIZ 63 /* Tune the size of nfsmount with this */ 394#endif 395#define NMUIDHASH(nmp, uid) \ 396 (&(nmp)->nm_uidhashtbl[(uid) % NFS_MUIDHASHSIZ]) 397#define NFSNOHASH(fhsum) \ 398 (&nfsnodehashtbl[(fhsum) & nfsnodehash]) 399 400/* 401 * Network address hash list element 402 */ 403union nethostaddr { 404 u_int32_t had_inetaddr; 405 struct sockaddr *had_nam; 406}; 407 408struct nfsuid { 409 TAILQ_ENTRY(nfsuid) nu_lru; /* LRU chain */ 410 LIST_ENTRY(nfsuid) nu_hash; /* Hash list */ 411 int nu_flag; /* Flags */ 412 union nethostaddr nu_haddr; /* Host addr. for dgram sockets */ 413 struct ucred nu_cr; /* Cred uid mapped to */ 414 int nu_expire; /* Expiry time (sec) */ 415 struct timeval nu_timestamp; /* Kerb. timestamp */ 416 u_int32_t nu_nickname; /* Nickname on server */ 417 NFSKERBKEY_T nu_key; /* and session key */ 418}; 419 420#define nu_inetaddr nu_haddr.had_inetaddr 421#define nu_nam nu_haddr.had_nam 422/* Bits for nu_flag */ 423#define NU_INETADDR 0x1 424#define NU_NAM 0x2 425#define NU_NETFAM(u) (((u)->nu_flag & NU_INETADDR) ? AF_INET : AF_ISO) 426 427struct nfsrv_rec { 428 STAILQ_ENTRY(nfsrv_rec) nr_link; 429 struct sockaddr *nr_address; 430 struct mbuf *nr_packet; 431}; 432 433struct nfssvc_sock { 434 TAILQ_ENTRY(nfssvc_sock) ns_chain; /* List of all nfssvc_sock's */ 435 TAILQ_HEAD(, nfsuid) ns_uidlruhead; 436 struct file *ns_fp; 437 struct socket *ns_so; 438 struct sockaddr *ns_nam; 439 struct mbuf *ns_raw; 440 struct mbuf *ns_rawend; 441 STAILQ_HEAD(, nfsrv_rec) ns_rec; 442 struct mbuf *ns_frag; 443 int ns_flag; 444 int ns_solock; 445 int ns_cc; 446 int ns_reclen; 447 int ns_numuids; 448 u_int32_t ns_sref; 449 LIST_HEAD(, nfsrv_descript) ns_tq; /* Write gather lists */ 450 LIST_HEAD(, nfsuid) ns_uidhashtbl[NFS_UIDHASHSIZ]; 451 LIST_HEAD(nfsrvw_delayhash, nfsrv_descript) ns_wdelayhashtbl[NFS_WDELAYHASHSIZ]; 452}; 453 454/* Bits for "ns_flag" */ 455#define SLP_VALID 0x01 456#define SLP_DOREC 0x02 457#define SLP_NEEDQ 0x04 458#define SLP_DISCONN 0x08 459#define SLP_GETSTREAM 0x10 460#define SLP_LASTFRAG 0x20 461#define SLP_ALLFLAGS 0xff 462 463extern TAILQ_HEAD(nfssvc_sockhead, nfssvc_sock) nfssvc_sockhead; 464extern int nfssvc_sockhead_flag; 465#define SLP_INIT 0x01 466#define SLP_WANTINIT 0x02 467 468/* 469 * One of these structures is allocated for each nfsd. 470 */ 471struct nfsd { 472 TAILQ_ENTRY(nfsd) nfsd_chain; /* List of all nfsd's */ 473 int nfsd_flag; /* NFSD_ flags */ 474 struct nfssvc_sock *nfsd_slp; /* Current socket */ 475 int nfsd_authlen; /* Authenticator len */ 476 u_char nfsd_authstr[RPCAUTH_MAXSIZ]; /* Authenticator data */ 477 int nfsd_verflen; /* and the Verifier */ 478 u_char nfsd_verfstr[RPCVERF_MAXSIZ]; 479 struct proc *nfsd_procp; /* Proc ptr */ 480 struct nfsrv_descript *nfsd_nd; /* Associated nfsrv_descript */ 481}; 482 483/* Bits for "nfsd_flag" */ 484#define NFSD_WAITING 0x01 485#define NFSD_REQINPROG 0x02 486#define NFSD_NEEDAUTH 0x04 487#define NFSD_AUTHFAIL 0x08 488 489/* 490 * This structure is used by the server for describing each request. 491 * Some fields are used only when write request gathering is performed. 492 */ 493struct nfsrv_descript { 494 u_quad_t nd_time; /* Write deadline (usec) */ 495 off_t nd_off; /* Start byte offset */ 496 off_t nd_eoff; /* and end byte offset */ 497 LIST_ENTRY(nfsrv_descript) nd_hash; /* Hash list */ 498 LIST_ENTRY(nfsrv_descript) nd_tq; /* and timer list */ 499 LIST_HEAD(,nfsrv_descript) nd_coalesce; /* coalesced writes */ 500 struct mbuf *nd_mrep; /* Request mbuf list */ 501 struct mbuf *nd_md; /* Current dissect mbuf */ 502 struct mbuf *nd_mreq; /* Reply mbuf list */ 503 struct sockaddr *nd_nam; /* and socket addr */ 504 struct sockaddr *nd_nam2; /* return socket addr */ 505 caddr_t nd_dpos; /* Current dissect pos */ 506 u_int32_t nd_procnum; /* RPC # */ 507 int nd_stable; /* storage type */ 508 int nd_flag; /* nd_flag */ 509 int nd_len; /* Length of this write */ 510 int nd_repstat; /* Reply status */ 511 u_int32_t nd_retxid; /* Reply xid */ 512 u_int32_t nd_duration; /* Lease duration */ 513 struct timeval nd_starttime; /* Time RPC initiated */ 514 fhandle_t nd_fh; /* File handle */ 515 struct ucred nd_cr; /* Credentials */ 516}; 517 518/* Bits for "nd_flag" */ 519#define ND_READ LEASE_READ 520#define ND_WRITE LEASE_WRITE 521#define ND_CHECK 0x04 522#define ND_LEASE (ND_READ | ND_WRITE | ND_CHECK) 523#define ND_NFSV3 0x08 524#define ND_NQNFS 0x10 525#define ND_KERBNICK 0x20 526#define ND_KERBFULL 0x40 527#define ND_KERBAUTH (ND_KERBNICK | ND_KERBFULL) 528 529extern TAILQ_HEAD(nfsd_head, nfsd) nfsd_head; 530extern int nfsd_head_flag; 531#define NFSD_CHECKSLP 0x01 532 533/* 534 * These macros compare nfsrv_descript structures. 535 */ 536#define NFSW_CONTIG(o, n) \ 537 ((o)->nd_eoff >= (n)->nd_off && \ 538 !bcmp((caddr_t)&(o)->nd_fh, (caddr_t)&(n)->nd_fh, NFSX_V3FH)) 539 540#define NFSW_SAMECRED(o, n) \ 541 (((o)->nd_flag & ND_KERBAUTH) == ((n)->nd_flag & ND_KERBAUTH) && \ 542 !bcmp((caddr_t)&(o)->nd_cr, (caddr_t)&(n)->nd_cr, \ 543 sizeof (struct ucred))) 544 545/* 546 * Defines for WebNFS 547 */ 548 549#define WEBNFS_ESC_CHAR '%' 550#define WEBNFS_SPECCHAR_START 0x80 551 552#define WEBNFS_NATIVE_CHAR 0x80 553/* 554 * .. 555 * Possibly more here in the future. 556 */ 557 558/* 559 * Macro for converting escape characters in WebNFS pathnames. 560 * Should really be in libkern. 561 */ 562 563#define HEXTOC(c) \ 564 ((c) >= 'a' ? ((c) - ('a' - 10)) : \ 565 ((c) >= 'A' ? ((c) - ('A' - 10)) : ((c) - '0'))) 566#define HEXSTRTOI(p) \ 567 ((HEXTOC(p[0]) << 4) + HEXTOC(p[1])) 568 569#ifdef NFS_DEBUG 570 571extern int nfs_debug; 572#define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */ 573#define NFS_DEBUG_WG 2 /* server write gathering */ 574#define NFS_DEBUG_RC 4 /* server request caching */ 575 576#define NFS_DPF(cat, args) \ 577 do { \ 578 if (nfs_debug & NFS_DEBUG_##cat) printf args; \ 579 } while (0) 580 581#else 582 583#define NFS_DPF(cat, args) 584 585#endif 586 587u_quad_t nfs_curusec __P((void)); 588int nfs_init __P((struct vfsconf *vfsp)); 589int nfs_uninit __P((struct vfsconf *vfsp)); 590int nfs_reply __P((struct nfsreq *)); 591int nfs_getreq __P((struct nfsrv_descript *,struct nfsd *,int)); 592int nfs_send __P((struct socket *, struct sockaddr *, struct mbuf *, 593 struct nfsreq *)); 594int nfs_rephead __P((int, struct nfsrv_descript *, struct nfssvc_sock *, 595 int, int, u_quad_t *, struct mbuf **, struct mbuf **, 596 caddr_t *)); 597int nfs_sndlock __P((struct nfsreq *)); 598void nfs_sndunlock __P((struct nfsreq *)); 599int nfs_slplock __P((struct nfssvc_sock *, int)); 600void nfs_slpunlock __P((struct nfssvc_sock *)); 601int nfs_disct __P((struct mbuf **, caddr_t *, int, int, caddr_t *)); 602int nfs_vinvalbuf __P((struct vnode *, int, struct ucred *, struct proc *, 603 int)); 604int nfs_readrpc __P((struct vnode *, struct uio *, struct ucred *)); 605int nfs_writerpc __P((struct vnode *, struct uio *, struct ucred *, int *, 606 int *)); 607int nfs_readdirrpc __P((struct vnode *, struct uio *, struct ucred *)); 608int nfs_asyncio __P((struct buf *, struct ucred *)); 609int nfs_doio __P((struct buf *, struct ucred *, struct proc *)); 610int nfs_readlinkrpc __P((struct vnode *, struct uio *, struct ucred *)); 611int nfs_sigintr __P((struct nfsmount *, struct nfsreq *, struct proc *)); 612int nfs_readdirplusrpc __P((struct vnode *, struct uio *, struct ucred *)); 613int nfsm_disct __P((struct mbuf **, caddr_t *, int, int, caddr_t *)); 614void nfsm_srvfattr __P((struct nfsrv_descript *, struct vattr *, 615 struct nfs_fattr *)); 616void nfsm_srvwcc __P((struct nfsrv_descript *, int, struct vattr *, int, 617 struct vattr *, struct mbuf **, char **)); 618void nfsm_srvpostopattr __P((struct nfsrv_descript *, int, struct vattr *, 619 struct mbuf **, char **)); 620int netaddr_match __P((int, union nethostaddr *, struct sockaddr *)); 621int nfs_request __P((struct vnode *, struct mbuf *, int, struct proc *, 622 struct ucred *, struct mbuf **, struct mbuf **, 623 caddr_t *)); 624int nfs_loadattrcache __P((struct vnode **, struct mbuf **, caddr_t *, 625 struct vattr *)); 626int nfs_namei __P((struct nameidata *, fhandle_t *, int, 627 struct nfssvc_sock *, struct sockaddr *, struct mbuf **, 628 caddr_t *, struct vnode **, struct proc *, int, int)); 629void nfsm_adj __P((struct mbuf *, int, int)); 630int nfsm_mbuftouio __P((struct mbuf **, struct uio *, int, caddr_t *)); 631void nfsrv_initcache __P((void)); 632int nfs_getauth __P((struct nfsmount *, struct nfsreq *, struct ucred *, 633 char **, int *, char *, int *, NFSKERBKEY_T)); 634int nfs_getnickauth __P((struct nfsmount *, struct ucred *, char **, 635 int *, char *, int)); 636int nfs_savenickauth __P((struct nfsmount *, struct ucred *, int, 637 NFSKERBKEY_T, struct mbuf **, char **, 638 struct mbuf *)); 639int nfs_adv __P((struct mbuf **, caddr_t *, int, int)); 640void nfs_nhinit __P((void)); 641void nfs_timer __P((void*)); 642u_long nfs_hash __P((nfsfh_t *, int)); 643int nfsrv_dorec __P((struct nfssvc_sock *, struct nfsd *, 644 struct nfsrv_descript **)); 645int nfsrv_getcache __P((struct nfsrv_descript *, struct nfssvc_sock *, 646 struct mbuf **)); 647void nfsrv_updatecache __P((struct nfsrv_descript *, int, struct mbuf *)); 648void nfsrv_cleancache __P((void)); 649int nfs_connect __P((struct nfsmount *, struct nfsreq *)); 650void nfs_disconnect __P((struct nfsmount *)); 651void nfs_safedisconnect __P((struct nfsmount *)); 652int nfs_getattrcache __P((struct vnode *, struct vattr *)); 653int nfsm_strtmbuf __P((struct mbuf **, char **, const char *, long)); 654int nfs_bioread __P((struct vnode *, struct uio *, int, struct ucred *)); 655int nfsm_uiotombuf __P((struct uio *, struct mbuf **, int, caddr_t *)); 656void nfsrv_init __P((int)); 657void nfs_clearcommit __P((struct mount *)); 658int nfsrv_errmap __P((struct nfsrv_descript *, int)); 659void nfsrvw_sort __P((gid_t *, int)); 660void nfsrv_setcred __P((struct ucred *, struct ucred *)); 661int nfs_writebp __P((struct buf *, int)); 662int nfsrv_object_create __P((struct vnode *)); 663void nfsrv_wakenfsd __P((struct nfssvc_sock *slp)); 664int nfsrv_writegather __P((struct nfsrv_descript **, struct nfssvc_sock *, 665 struct proc *, struct mbuf **)); 666int nfs_fsinfo __P((struct nfsmount *, struct vnode *, struct ucred *, 667 struct proc *p)); 668 669int nfsrv3_access __P((struct nfsrv_descript *nfsd, 670 struct nfssvc_sock *slp, 671 struct proc *procp, struct mbuf **mrq)); 672int nfsrv_commit __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 673 struct proc *procp, struct mbuf **mrq)); 674int nfsrv_create __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 675 struct proc *procp, struct mbuf **mrq)); 676int nfsrv_fhtovp __P((fhandle_t *, int, struct vnode **, struct ucred *, 677 struct nfssvc_sock *, struct sockaddr *, int *, 678 int, int)); 679int nfsrv_setpublicfs __P((struct mount *, struct netexport *, 680 struct export_args *)); 681int nfs_ispublicfh __P((fhandle_t *)); 682int nfsrv_fsinfo __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 683 struct proc *procp, struct mbuf **mrq)); 684int nfsrv_getattr __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 685 struct proc *procp, struct mbuf **mrq)); 686int nfsrv_link __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 687 struct proc *procp, struct mbuf **mrq)); 688int nfsrv_lookup __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 689 struct proc *procp, struct mbuf **mrq)); 690int nfsrv_mkdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 691 struct proc *procp, struct mbuf **mrq)); 692int nfsrv_mknod __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 693 struct proc *procp, struct mbuf **mrq)); 694int nfsrv_noop __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 695 struct proc *procp, struct mbuf **mrq)); 696int nfsrv_null __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 697 struct proc *procp, struct mbuf **mrq)); 698int nfsrv_pathconf __P((struct nfsrv_descript *nfsd, 699 struct nfssvc_sock *slp, struct proc *procp, 700 struct mbuf **mrq)); 701int nfsrv_read __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 702 struct proc *procp, struct mbuf **mrq)); 703int nfsrv_readdir __P((struct nfsrv_descript *nfsd, 704 struct nfssvc_sock *slp, 705 struct proc *procp, struct mbuf **mrq)); 706int nfsrv_readdirplus __P((struct nfsrv_descript *nfsd, 707 struct nfssvc_sock *slp, struct proc *procp, 708 struct mbuf **mrq)); 709int nfsrv_readlink __P((struct nfsrv_descript *nfsd, 710 struct nfssvc_sock *slp, struct proc *procp, 711 struct mbuf **mrq)); 712int nfsrv_remove __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 713 struct proc *procp, struct mbuf **mrq)); 714int nfsrv_rename __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 715 struct proc *procp, struct mbuf **mrq)); 716int nfsrv_rmdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 717 struct proc *procp, struct mbuf **mrq)); 718int nfsrv_setattr __P((struct nfsrv_descript *nfsd, 719 struct nfssvc_sock *slp, 720 struct proc *procp, struct mbuf **mrq)); 721int nfsrv_statfs __P((struct nfsrv_descript *nfsd, 722 struct nfssvc_sock *slp, 723 struct proc *procp, struct mbuf **mrq)); 724int nfsrv_symlink __P((struct nfsrv_descript *nfsd, 725 struct nfssvc_sock *slp, 726 struct proc *procp, struct mbuf **mrq)); 727int nfsrv_write __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 728 struct proc *procp, struct mbuf **mrq)); 729void nfsrv_rcv __P((struct socket *so, void *arg, int waitflag)); 730void nfsrv_slpderef __P((struct nfssvc_sock *slp)); 731#endif /* KERNEL */ 732 733#endif 734