1 /* $NetBSD: nfs.h,v 1.52 2005/12/11 12:25:16 christos Exp $ */ 2 /* 3 * Copyright (c) 1989, 1993, 1995 4 * The Regents of the University of California. All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * Rick Macklem at The University of Guelph. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)nfs.h 8.4 (Berkeley) 5/1/95 34 */ 35 36 #ifndef _NFS_NFS_H_ 37 #define _NFS_NFS_H_ 38 39 /* 40 * Tunable constants for nfs 41 */ 42 43 #define NFS_MAXIOVEC 34 44 #define NFS_TICKINTVL 5 /* Desired time for a tick (msec) */ 45 #define NFS_HZ (hz / nfs_ticks) /* Ticks/sec */ 46 #define NFS_TIMEO (3 * NFS_HZ) /* Default timeout = 3 seconds */ 47 #define NFS_MINTIMEO (1 * NFS_HZ) /* Min timeout to use */ 48 #define NFS_MAXTIMEO (60 * NFS_HZ) /* Max timeout to backoff to */ 49 #define NFS_MINIDEMTIMEO (5 * NFS_HZ) /* Min timeout for non-idempotent ops*/ 50 #define NFS_MAXREXMIT 100 /* Stop counting after this many */ 51 #define NFS_MAXWINDOW 1024 /* Max number of outstanding requests */ 52 #define NFS_RETRANS 10 /* Num of retrans for soft mounts */ 53 #define NFS_MAXGRPS 16 /* Max. size of groups list */ 54 #ifndef NFS_MINATTRTIMO 55 #define NFS_MINATTRTIMO 5 /* Attribute cache timeout in sec */ 56 #endif 57 #ifndef NFS_MAXATTRTIMO 58 #define NFS_MAXATTRTIMO 60 59 #endif 60 #define NFS_TRYLATERDEL 1 /* Initial try later delay (sec) */ 61 #define NFS_TRYLATERDELMAX (1*60) /* Maximum try later delay (sec) */ 62 #define NFS_TRYLATERDELMUL 2 /* Exponential backoff multiplier */ 63 64 /* 65 * These can be overridden through <machine/param.h>, included via 66 * <sys/param.h>. This means that <sys/param.h> should always be 67 * included before this file. 68 */ 69 #ifndef NFS_WSIZE 70 #define NFS_WSIZE 8192 /* Def. write data size */ 71 #endif 72 #ifndef NFS_RSIZE 73 #define NFS_RSIZE 8192 /* Def. read data size */ 74 #endif 75 #ifndef NFS_READDIRSIZE 76 #define NFS_READDIRSIZE 8192 /* Def. readdir size */ 77 #endif 78 79 /* 80 * NFS client IO daemon threads. May be overridden by config options. 81 */ 82 #ifndef NFS_MAXASYNCDAEMON 83 #define NFS_MAXASYNCDAEMON 128 /* Max. number async_daemons runable */ 84 #endif 85 86 /* 87 * NFS client read-ahead. May be overridden by config options. 88 * Should be no more than NFS_MAXASYNCDAEMON as each read-ahead operation 89 * requires one IO thread. 90 */ 91 #ifndef NFS_MAXRAHEAD 92 #define NFS_MAXRAHEAD 32 /* Max. read ahead # blocks */ 93 #endif 94 #define NFS_DEFRAHEAD 2 /* Def. read ahead # blocks */ 95 96 #define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */ 97 98 #ifdef _KERNEL 99 extern int nfs_niothreads; /* Number of async_daemons desired */ 100 #ifndef NFS_DEFAULT_NIOTHREADS 101 #define NFS_DEFAULT_NIOTHREADS 4 102 #endif 103 #endif 104 #define NFS_MAXGATHERDELAY 100 /* Max. write gather delay (msec) */ 105 #ifndef NFS_GATHERDELAY 106 #define NFS_GATHERDELAY 10 /* Default write gather delay (msec) */ 107 #endif 108 109 /* 110 * NFS_DIRBLKSIZ is the size of buffers in the buffer cache used for 111 * NFS directory vnodes. NFS_DIRFRAGSIZ is the minimum aligned amount 112 * of data in those buffers, and thus the minimum amount of data 113 * that you can request. NFS_DIRFRAGSIZ should be no smaller than 114 * DIRBLKSIZ. 115 */ 116 117 #define NFS_DIRBLKSIZ 8192 /* Must be a multiple of DIRBLKSIZ */ 118 #define NFS_DIRFRAGSIZ 512 /* Same as DIRBLKSIZ, generally */ 119 120 /* 121 * Maximum number of directory entries cached per NFS node, to avoid 122 * having this grow without bounds on very large directories. The 123 * minimum size to get reasonable performance for emulated binaries 124 * is the maximum number of entries that fits in NFS_DIRBLKSIZ. 125 * For NFS_DIRBLKSIZ = 512, this would be 512 / 14 = 36. 126 */ 127 #define NFS_MAXDIRCACHE (NFS_DIRBLKSIZ / 14) 128 129 /* 130 * Oddballs 131 */ 132 #define NFS_CMPFH(n, f, s) \ 133 ((n)->n_fhsize == (s) && !memcmp((caddr_t)(n)->n_fhp, (caddr_t)(f), (s))) 134 #ifdef NFS_V2_ONLY 135 #define NFS_ISV3(v) (0) 136 #else 137 #define NFS_ISV3(v) (VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV3) 138 #endif 139 #define NFS_SRVMAXDATA(n) \ 140 (((n)->nd_flag & ND_NFSV3) ? (((n)->nd_nam2) ? \ 141 NFS_MAXDGRAMDATA : NFS_MAXDATA) : NFS_V2MAXDATA) 142 143 /* 144 * Use the vm_page flag reserved for pager use to indicate pages 145 * which have been written to the server but not yet committed. 146 */ 147 #define PG_NEEDCOMMIT PG_PAGER1 148 149 /* 150 * The IO_METASYNC flag should be implemented for local file systems. 151 * (Until then, it is nothin at all.) 152 */ 153 #ifndef IO_METASYNC 154 #define IO_METASYNC 0 155 #endif 156 157 /* 158 * Set the attribute timeout based on how recently the file has been modified. 159 */ 160 #define NFS_ATTRTIMEO(nmp, np) \ 161 ((nmp->nm_flag & NFSMNT_NOAC) ? 0 : \ 162 ((((np)->n_flag & NMODIFIED) || \ 163 (time.tv_sec - (np)->n_mtime.tv_sec) / 10 < NFS_MINATTRTIMO) ? NFS_MINATTRTIMO : \ 164 ((time.tv_sec - (np)->n_mtime.tv_sec) / 10 > NFS_MAXATTRTIMO ? NFS_MAXATTRTIMO : \ 165 (time.tv_sec - (np)->n_mtime.tv_sec) / 10))) 166 167 /* 168 * Export arguments for local filesystem mount calls. 169 * Keep in mind that changing this structure modifies nfssvc(2)'s ABI (see 170 * 'struct mountd_exports_list' below). 171 * When modifying this structure, take care to also edit the 172 * nfs_update_exports_30 function in nfs_export.c accordingly to convert 173 * export_args to export_args30. 174 */ 175 struct export_args { 176 int ex_flags; /* export related flags */ 177 uid_t ex_root; /* mapping for root uid */ 178 struct uucred ex_anon; /* mapping for anonymous user */ 179 struct sockaddr *ex_addr; /* net address to which exported */ 180 int ex_addrlen; /* and the net address length */ 181 struct sockaddr *ex_mask; /* mask of valid bits in saddr */ 182 int ex_masklen; /* and the smask length */ 183 char *ex_indexfile; /* index file for WebNFS URLs */ 184 }; 185 186 /* 187 * Structures for the nfssvc(2) syscall. Not that anyone but mountd, nfsd and 188 * mount_nfs should ever try and use it. 189 */ 190 struct nfsd_args { 191 int sock; /* Socket to serve */ 192 caddr_t name; /* Client addr for connection based sockets */ 193 int namelen; /* Length of name */ 194 }; 195 196 struct nfsd_srvargs { 197 struct nfsd *nsd_nfsd; /* Pointer to in kernel nfsd struct */ 198 uid_t nsd_uid; /* Effective uid mapped to cred */ 199 u_int32_t nsd_haddr; /* Ip address of client */ 200 struct uucred nsd_cr; /* Cred. uid maps to */ 201 int nsd_authlen; /* Length of auth string (ret) */ 202 u_char *nsd_authstr; /* Auth string (ret) */ 203 int nsd_verflen; /* and the verfier */ 204 u_char *nsd_verfstr; 205 struct timeval nsd_timestamp; /* timestamp from verifier */ 206 u_int32_t nsd_ttl; /* credential ttl (sec) */ 207 NFSKERBKEY_T nsd_key; /* Session key */ 208 }; 209 210 struct nfsd_cargs { 211 char *ncd_dirp; /* Mount dir path */ 212 uid_t ncd_authuid; /* Effective uid */ 213 int ncd_authtype; /* Type of authenticator */ 214 u_int ncd_authlen; /* Length of authenticator string */ 215 u_char *ncd_authstr; /* Authenticator string */ 216 u_int ncd_verflen; /* and the verifier */ 217 u_char *ncd_verfstr; 218 NFSKERBKEY_T ncd_key; /* Session key */ 219 }; 220 221 struct mountd_exports_list { 222 const char *mel_path; 223 size_t mel_nexports; 224 struct export_args *mel_exports; 225 }; 226 227 /* 228 * Stats structure 229 */ 230 struct nfsstats { 231 int attrcache_hits; 232 int attrcache_misses; 233 int lookupcache_hits; 234 int lookupcache_misses; 235 int direofcache_hits; 236 int direofcache_misses; 237 int biocache_reads; 238 int read_bios; 239 int read_physios; 240 int biocache_writes; 241 int write_bios; 242 int write_physios; 243 int biocache_readlinks; 244 int readlink_bios; 245 int biocache_readdirs; 246 int readdir_bios; 247 int rpccnt[NFS_NPROCS]; 248 int rpcretries; 249 int srvrpccnt[NFS_NPROCS]; 250 int srvrpc_errs; 251 int srv_errs; 252 int rpcrequests; 253 int rpctimeouts; 254 int rpcunexpected; 255 int rpcinvalid; 256 int srvcache_inproghits; 257 int srvcache_idemdonehits; 258 int srvcache_nonidemdonehits; 259 int srvcache_misses; 260 int srvnqnfs_leases; 261 int srvnqnfs_maxleases; 262 int srvnqnfs_getleases; 263 int srvvop_writes; 264 }; 265 266 /* 267 * Flags for nfssvc() system call. 268 */ 269 #define NFSSVC_BIOD 0x002 270 #define NFSSVC_NFSD 0x004 271 #define NFSSVC_ADDSOCK 0x008 272 #define NFSSVC_AUTHIN 0x010 273 #define NFSSVC_GOTAUTH 0x040 274 #define NFSSVC_AUTHINFAIL 0x080 275 #define NFSSVC_MNTD 0x100 276 #define NFSSVC_SETEXPORTSLIST 0x200 277 278 /* 279 * fs.nfs sysctl(3) identifiers 280 */ 281 #define NFS_NFSSTATS 1 /* struct: struct nfsstats */ 282 #define NFS_IOTHREADS 2 /* number of io threads */ 283 #define NFS_MAXID 3 284 285 #define NFS_NAMES { \ 286 { 0, 0 }, \ 287 { "nfsstats", CTLTYPE_STRUCT }, \ 288 { "iothreads", CTLTYPE_INT }, \ 289 } 290 291 /* 292 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts. 293 * What should be in this set is open to debate, but I believe that since 294 * I/O system calls on ufs are never interrupted by signals the set should 295 * be minimal. My reasoning is that many current programs that use signals 296 * such as SIGALRM will not expect file I/O system calls to be interrupted 297 * by them and break. 298 */ 299 #ifdef _KERNEL 300 301 struct uio; struct buf; struct vattr; struct nameidata; /* XXX */ 302 303 /* 304 * Socket errors ignored for connectionless sockets?? 305 * For now, ignore them all 306 */ 307 #define NFSIGNORE_SOERROR(s, e) \ 308 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \ 309 ((s) & PR_CONNREQUIRED) == 0) 310 311 /* 312 * Nfs outstanding request list element 313 */ 314 struct nfsreq { 315 TAILQ_ENTRY(nfsreq) r_chain; 316 struct mbuf *r_mreq; 317 struct mbuf *r_mrep; 318 struct mbuf *r_md; 319 caddr_t r_dpos; 320 struct nfsmount *r_nmp; 321 u_int32_t r_xid; 322 int r_flags; /* flags on request, see below */ 323 int r_retry; /* max retransmission count */ 324 int r_rexmit; /* current retrans count */ 325 int r_timer; /* tick counter on reply */ 326 u_int32_t r_procnum; /* NFS procedure number */ 327 int r_rtt; /* RTT for rpc */ 328 struct lwp *r_lwp; /* LWP that did I/O system call */ 329 }; 330 331 /* 332 * Queue head for nfsreq's 333 */ 334 extern TAILQ_HEAD(nfsreqhead, nfsreq) nfs_reqq; 335 336 /* Flag values for r_flags */ 337 #define R_TIMING 0x01 /* timing request (in mntp) */ 338 #define R_SENT 0x02 /* request has been sent */ 339 #define R_SOFTTERM 0x04 /* soft mnt, too many retries */ 340 #define R_INTR 0x08 /* intr mnt, signal pending */ 341 #define R_SOCKERR 0x10 /* Fatal error on socket */ 342 #define R_TPRINTFMSG 0x20 /* Did a tprintf msg. */ 343 #define R_MUSTRESEND 0x40 /* Must resend request */ 344 #define R_GETONEREP 0x80 /* Probe for one reply only */ 345 #define R_REXMITTED 0x100 /* retransmitted after reconnect */ 346 347 /* 348 * A list of nfssvc_sock structures is maintained with all the sockets 349 * that require service by the nfsd. 350 * The nfsuid structs hang off of the nfssvc_sock structs in both lru 351 * and uid hash lists. 352 */ 353 #ifndef NFS_UIDHASHSIZ 354 #define NFS_UIDHASHSIZ 29 /* Tune the size of nfssvc_sock with this */ 355 #endif 356 #define NUIDHASH(sock, uid) \ 357 (&(sock)->ns_uidhashtbl[(uid) % NFS_UIDHASHSIZ]) 358 #ifndef NFS_WDELAYHASHSIZ 359 #define NFS_WDELAYHASHSIZ 16 /* and with this */ 360 #endif 361 #define NWDELAYHASH(sock, f) \ 362 (&(sock)->ns_wdelayhashtbl[(*((u_int32_t *)(f))) % NFS_WDELAYHASHSIZ]) 363 #ifndef NFS_MUIDHASHSIZ 364 #define NFS_MUIDHASHSIZ 63 /* Tune the size of nfsmount with this */ 365 #endif 366 #define NMUIDHASH(nmp, uid) \ 367 (&(nmp)->nm_uidhashtbl[(uid) % NFS_MUIDHASHSIZ]) 368 #define NFSNOHASH(fhsum) ((fhsum) & nfsnodehash) 369 370 #ifndef NFS_DIRHASHSIZ 371 #define NFS_DIRHASHSIZ 64 372 #endif 373 #define NFSDIRHASH(np, off) \ 374 (&np->n_dircache[(nfs_dirhash((off)) & nfsdirhashmask)]) 375 376 /* 377 * Macros for storing/retrieving cookies into directory buffers. 378 */ 379 #define NFS_STASHCOOKIE(dp,off) \ 380 *((off_t *)((caddr_t)(dp) + (dp)->d_reclen - sizeof (off_t))) = off 381 #define NFS_GETCOOKIE(dp) \ 382 (*((off_t *)((caddr_t)(dp) + (dp)->d_reclen - sizeof (off_t)))) 383 #define NFS_STASHCOOKIE32(dp, val) \ 384 *((u_int32_t *)((caddr_t)(dp) + (dp)->d_reclen - sizeof (off_t) - \ 385 sizeof (int))) = val 386 #define NFS_GETCOOKIE32(dp) \ 387 (*((u_int32_t *)((caddr_t)(dp) + (dp)->d_reclen - sizeof (off_t) - \ 388 sizeof (int)))) 389 390 /* 391 * Flags passed to nfs_bioread(). 392 */ 393 #define NFSBIO_CACHECOOKIES 0x0001 /* Cache dir offset cookies */ 394 395 /* 396 * Network address hash list element 397 */ 398 union nethostaddr { 399 u_int32_t had_inetaddr; 400 struct mbuf *had_nam; 401 }; 402 403 struct nfsuid { 404 TAILQ_ENTRY(nfsuid) nu_lru; /* LRU chain */ 405 LIST_ENTRY(nfsuid) nu_hash; /* Hash list */ 406 int nu_flag; /* Flags */ 407 union nethostaddr nu_haddr; /* Host addr. for dgram sockets */ 408 struct ucred nu_cr; /* Cred uid mapped to */ 409 int nu_expire; /* Expiry time (sec) */ 410 struct timeval nu_timestamp; /* Kerb. timestamp */ 411 u_int32_t nu_nickname; /* Nickname on server */ 412 NFSKERBKEY_T nu_key; /* and session key */ 413 }; 414 415 #define nu_inetaddr nu_haddr.had_inetaddr 416 #define nu_nam nu_haddr.had_nam 417 /* Bits for nu_flag */ 418 #define NU_INETADDR 0x1 419 #define NU_NAM 0x2 420 #ifdef INET6 421 #define NU_NETFAM(u) \ 422 (((u)->nu_flag & NU_INETADDR) ? \ 423 (((u)->nu_flag & NU_NAM) ? AF_INET6 : AF_INET) : AF_ISO) 424 #else 425 #define NU_NETFAM(u) (((u)->nu_flag & NU_INETADDR) ? AF_INET : AF_ISO) 426 #endif 427 428 struct nfssvc_sock { 429 TAILQ_ENTRY(nfssvc_sock) ns_chain; /* List of all nfssvc_sock's */ 430 TAILQ_ENTRY(nfssvc_sock) ns_pending; /* List of pending sockets */ 431 TAILQ_HEAD(, nfsuid) ns_uidlruhead; 432 struct file *ns_fp; 433 struct socket *ns_so; 434 struct mbuf *ns_nam; 435 struct mbuf *ns_raw; 436 struct mbuf *ns_rawend; 437 struct mbuf *ns_rec; 438 struct mbuf *ns_recend; 439 struct mbuf *ns_frag; 440 int ns_flag; 441 int ns_solock; 442 int ns_cc; 443 int ns_reclen; 444 int ns_numuids; 445 u_int32_t ns_sref; 446 LIST_HEAD(, nfsrv_descript) ns_tq; /* Write gather lists */ 447 LIST_HEAD(, nfsuid) ns_uidhashtbl[NFS_UIDHASHSIZ]; 448 LIST_HEAD(nfsrvw_delayhash, nfsrv_descript) ns_wdelayhashtbl[NFS_WDELAYHASHSIZ]; 449 }; 450 451 /* Bits for "ns_flag" */ 452 #define SLP_VALID 0x01 453 #define SLP_DOREC 0x02 454 #define SLP_NEEDQ 0x04 455 #define SLP_DISCONN 0x08 456 #define SLP_GETSTREAM 0x10 457 #define SLP_LASTFRAG 0x20 458 #define SLP_ALLFLAGS 0xff 459 460 extern TAILQ_HEAD(nfssvc_sockhead, nfssvc_sock) nfssvc_sockhead; 461 extern struct nfssvc_sockhead nfssvc_sockpending; 462 extern int nfssvc_sockhead_flag; 463 #define SLP_INIT 0x01 464 #define SLP_WANTINIT 0x02 465 466 /* 467 * One of these structures is allocated for each nfsd. 468 */ 469 struct nfsd { 470 TAILQ_ENTRY(nfsd) nfsd_chain; /* List of all nfsd's */ 471 SLIST_ENTRY(nfsd) nfsd_idle; /* List of idle nfsd's */ 472 int nfsd_flag; /* NFSD_ flags */ 473 struct nfssvc_sock *nfsd_slp; /* Current socket */ 474 int nfsd_authlen; /* Authenticator len */ 475 u_char nfsd_authstr[RPCAUTH_MAXSIZ]; /* Authenticator data */ 476 int nfsd_verflen; /* and the Verifier */ 477 u_char nfsd_verfstr[RPCVERF_MAXSIZ]; 478 struct proc *nfsd_procp; /* Proc ptr */ 479 struct nfsrv_descript *nfsd_nd; /* Associated nfsrv_descript */ 480 }; 481 482 /* Bits for "nfsd_flag" */ 483 #define NFSD_WAITING 0x01 484 #define NFSD_REQINPROG 0x02 485 #define NFSD_NEEDAUTH 0x04 486 #define NFSD_AUTHFAIL 0x08 487 488 /* 489 * This structure is used by the server for describing each request. 490 * Some fields are used only when write request gathering is performed. 491 */ 492 struct nfsrv_descript { 493 u_quad_t nd_time; /* Write deadline (usec) */ 494 off_t nd_off; /* Start byte offset */ 495 off_t nd_eoff; /* and end byte offset */ 496 LIST_ENTRY(nfsrv_descript) nd_hash; /* Hash list */ 497 LIST_ENTRY(nfsrv_descript) nd_tq; /* and timer list */ 498 LIST_HEAD(,nfsrv_descript) nd_coalesce; /* coalesced writes */ 499 struct mbuf *nd_mrep; /* Request mbuf list */ 500 struct mbuf *nd_md; /* Current dissect mbuf */ 501 struct mbuf *nd_mreq; /* Reply mbuf list */ 502 struct mbuf *nd_nam; /* and socket addr */ 503 struct mbuf *nd_nam2; /* return socket addr */ 504 caddr_t nd_dpos; /* Current dissect pos */ 505 u_int32_t nd_procnum; /* RPC # */ 506 int nd_stable; /* storage type */ 507 int nd_flag; /* nd_flag */ 508 int nd_len; /* Length of this write */ 509 int nd_repstat; /* Reply status */ 510 u_int32_t nd_retxid; /* Reply xid */ 511 u_int32_t nd_duration; /* Lease duration */ 512 struct timeval nd_starttime; /* Time RPC initiated */ 513 fhandle_t nd_fh; /* File handle */ 514 struct ucred nd_cr; /* Credentials */ 515 }; 516 517 /* Bits for "nd_flag" */ 518 #define ND_READ LEASE_READ 519 #define ND_WRITE LEASE_WRITE 520 #define ND_CHECK 0x04 521 #define ND_LEASE (ND_READ | ND_WRITE | ND_CHECK) 522 #define ND_NFSV3 0x08 523 #define ND_NQNFS 0x10 524 #define ND_KERBNICK 0x20 525 #define ND_KERBFULL 0x40 526 #define ND_KERBAUTH (ND_KERBNICK | ND_KERBFULL) 527 528 extern struct simplelock nfsd_slock; 529 extern TAILQ_HEAD(nfsdhead, nfsd) nfsd_head; 530 extern SLIST_HEAD(nfsdidlehead, nfsd) nfsd_idle_head; 531 extern int nfsd_head_flag; 532 #define NFSD_CHECKSLP 0x01 533 534 extern struct mowner nfs_mowner; 535 extern struct nfsstats nfsstats; 536 extern int nfs_numasync; 537 538 /* 539 * These macros compare nfsrv_descript structures. 540 */ 541 #define NFSW_CONTIG(o, n) \ 542 ((o)->nd_eoff >= (n)->nd_off && \ 543 !memcmp((caddr_t)&(o)->nd_fh, (caddr_t)&(n)->nd_fh, NFSX_V3FH)) 544 545 #define NFSW_SAMECRED(o, n) \ 546 (((o)->nd_flag & ND_KERBAUTH) == ((n)->nd_flag & ND_KERBAUTH) && \ 547 !memcmp((caddr_t)&(o)->nd_cr, (caddr_t)&(n)->nd_cr, \ 548 sizeof (struct ucred))) 549 550 /* 551 * Defines for WebNFS 552 */ 553 554 #define WEBNFS_ESC_CHAR '%' 555 #define WEBNFS_SPECCHAR_START 0x80 556 557 #define WEBNFS_NATIVE_CHAR 0x80 558 /* 559 * .. 560 * Possibly more here in the future. 561 */ 562 563 /* 564 * Macro for converting escape characters in WebNFS pathnames. 565 * Should really be in libkern. 566 */ 567 568 #define HEXTOC(c) \ 569 ((c) >= 'a' ? ((c) - ('a' - 10)) : \ 570 ((c) >= 'A' ? ((c) - ('A' - 10)) : ((c) - '0'))) 571 #define HEXSTRTOI(p) \ 572 ((HEXTOC(p[0]) << 4) + HEXTOC(p[1])) 573 574 /* 575 * Structure holding information for a publicly exported filesystem 576 * (WebNFS). Currently the specs allow just for one such filesystem. 577 */ 578 struct nfs_public { 579 int np_valid; /* Do we hold valid information */ 580 fhandle_t np_handle; /* Filehandle for pub fs (internal) */ 581 struct mount *np_mount; /* Mountpoint of exported fs */ 582 char *np_index; /* Index file */ 583 }; 584 #endif /* _KERNEL */ 585 586 #endif /* _NFS_NFS_H */ 587