nfs.h revision 1.66
1 /* $NetBSD: nfs.h,v 1.66 2007/06/01 23:16:33 dogcow 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 #ifdef _KERNEL 39 #include <sys/condvar.h> 40 #endif 41 42 /* 43 * Tunable constants for nfs 44 */ 45 46 #define NFS_MAXIOVEC 34 47 #define NFS_TICKINTVL 5 /* Desired time for a tick (msec) */ 48 #define NFS_HZ (hz / nfs_ticks) /* Ticks/sec */ 49 #define NFS_TIMEO (3 * NFS_HZ) /* Default timeout = 3 seconds */ 50 #define NFS_MINTIMEO (1 * NFS_HZ) /* Min timeout to use */ 51 #define NFS_MAXTIMEO (60 * NFS_HZ) /* Max timeout to backoff to */ 52 #define NFS_MINIDEMTIMEO (5 * NFS_HZ) /* Min timeout for non-idempotent ops*/ 53 #define NFS_MAXREXMIT 100 /* Stop counting after this many */ 54 #define NFS_MAXWINDOW 1024 /* Max number of outstanding requests */ 55 #define NFS_RETRANS 10 /* Num of retrans for soft mounts */ 56 #define NFS_MAXGRPS 16 /* Max. size of groups list */ 57 #ifndef NFS_MINATTRTIMO 58 #define NFS_MINATTRTIMO 5 /* Attribute cache timeout in sec */ 59 #endif 60 #ifndef NFS_MAXATTRTIMO 61 #define NFS_MAXATTRTIMO 60 62 #endif 63 #define NFS_TRYLATERDEL 1 /* Initial try later delay (sec) */ 64 #define NFS_TRYLATERDELMAX (1*60) /* Maximum try later delay (sec) */ 65 #define NFS_TRYLATERDELMUL 2 /* Exponential backoff multiplier */ 66 67 /* 68 * These can be overridden through <machine/param.h>, included via 69 * <sys/param.h>. This means that <sys/param.h> should always be 70 * included before this file. 71 */ 72 #ifndef NFS_WSIZE 73 #define NFS_WSIZE 8192 /* Def. write data size */ 74 #endif 75 #ifndef NFS_RSIZE 76 #define NFS_RSIZE 8192 /* Def. read data size */ 77 #endif 78 #ifndef NFS_READDIRSIZE 79 #define NFS_READDIRSIZE 8192 /* Def. readdir size */ 80 #endif 81 82 /* 83 * NFS client IO daemon threads. May be overridden by config options. 84 */ 85 #ifndef NFS_MAXASYNCDAEMON 86 #define NFS_MAXASYNCDAEMON 128 /* Max. number async_daemons runable */ 87 #endif 88 89 /* 90 * NFS client read-ahead. May be overridden by config options. 91 * Should be no more than NFS_MAXASYNCDAEMON as each read-ahead operation 92 * requires one IO thread. 93 */ 94 #ifndef NFS_MAXRAHEAD 95 #define NFS_MAXRAHEAD 32 /* Max. read ahead # blocks */ 96 #endif 97 #define NFS_DEFRAHEAD 2 /* Def. read ahead # blocks */ 98 99 #define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */ 100 101 #define NFS_DEFDEADTHRESH NFS_NEVERDEAD /* Default nm_deadthresh */ 102 #define NFS_NEVERDEAD 9 /* Greater than max. nm_timeouts */ 103 104 #ifdef _KERNEL 105 extern int nfs_niothreads; /* Number of async_daemons desired */ 106 #ifndef NFS_DEFAULT_NIOTHREADS 107 #define NFS_DEFAULT_NIOTHREADS 4 108 #endif 109 #endif 110 #define NFS_MAXGATHERDELAY 100 /* Max. write gather delay (msec) */ 111 #ifndef NFS_GATHERDELAY 112 #define NFS_GATHERDELAY 10 /* Default write gather delay (msec) */ 113 #endif 114 115 /* 116 * NFS_DIRBLKSIZ is the size of buffers in the buffer cache used for 117 * NFS directory vnodes. NFS_DIRFRAGSIZ is the minimum aligned amount 118 * of data in those buffers, and thus the minimum amount of data 119 * that you can request. NFS_DIRFRAGSIZ should be no smaller than 120 * DIRBLKSIZ. 121 */ 122 123 #define NFS_DIRBLKSIZ 8192 /* Must be a multiple of DIRBLKSIZ */ 124 #define NFS_DIRFRAGSIZ 512 /* Same as DIRBLKSIZ, generally */ 125 126 /* 127 * Maximum number of directory entries cached per NFS node, to avoid 128 * having this grow without bounds on very large directories. The 129 * minimum size to get reasonable performance for emulated binaries 130 * is the maximum number of entries that fits in NFS_DIRBLKSIZ. 131 * For NFS_DIRBLKSIZ = 512, this would be 512 / 14 = 36. 132 */ 133 #define NFS_MAXDIRCACHE (NFS_DIRBLKSIZ / 14) 134 135 /* 136 * Oddballs 137 */ 138 #define NFS_CMPFH(n, f, s) \ 139 ((n)->n_fhsize == (s) && !memcmp((void *)(n)->n_fhp, (void *)(f), (s))) 140 #ifdef NFS_V2_ONLY 141 #define NFS_ISV3(v) (0) 142 #else 143 #define NFS_ISV3(v) (VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV3) 144 #endif 145 #define NFS_SRVMAXDATA(n) \ 146 (((n)->nd_flag & ND_NFSV3) ? (((n)->nd_nam2) ? \ 147 NFS_MAXDGRAMDATA : NFS_MAXDATA) : NFS_V2MAXDATA) 148 149 /* 150 * Use the vm_page flag reserved for pager use to indicate pages 151 * which have been written to the server but not yet committed. 152 */ 153 #define PG_NEEDCOMMIT PG_PAGER1 154 155 /* 156 * The IO_METASYNC flag should be implemented for local file systems. 157 * (Until then, it is nothin at all.) 158 */ 159 #ifndef IO_METASYNC 160 #define IO_METASYNC 0 161 #endif 162 163 /* 164 * Set the attribute timeout based on how recently the file has been modified. 165 */ 166 #define NFS_ATTRTIMEO(nmp, np) \ 167 ((nmp->nm_flag & NFSMNT_NOAC) ? 0 : \ 168 ((((np)->n_flag & NMODIFIED) || \ 169 (time_second - (np)->n_mtime.tv_sec) / 10 < NFS_MINATTRTIMO) ? NFS_MINATTRTIMO : \ 170 ((time_second - (np)->n_mtime.tv_sec) / 10 > NFS_MAXATTRTIMO ? NFS_MAXATTRTIMO : \ 171 (time_second - (np)->n_mtime.tv_sec) / 10))) 172 173 /* 174 * Export arguments for local filesystem mount calls. 175 * Keep in mind that changing this structure modifies nfssvc(2)'s ABI (see 176 * 'struct mountd_exports_list' below). 177 * When modifying this structure, take care to also edit the 178 * nfs_update_exports_30 function in nfs_export.c accordingly to convert 179 * export_args to export_args30. 180 */ 181 struct export_args { 182 int ex_flags; /* export related flags */ 183 uid_t ex_root; /* mapping for root uid */ 184 struct uucred ex_anon; /* mapping for anonymous user */ 185 struct sockaddr *ex_addr; /* net address to which exported */ 186 int ex_addrlen; /* and the net address length */ 187 struct sockaddr *ex_mask; /* mask of valid bits in saddr */ 188 int ex_masklen; /* and the smask length */ 189 char *ex_indexfile; /* index file for WebNFS URLs */ 190 }; 191 192 /* 193 * Structures for the nfssvc(2) syscall. Not that anyone but mountd, nfsd and 194 * mount_nfs should ever try and use it. 195 */ 196 struct nfsd_args { 197 int sock; /* Socket to serve */ 198 void * name; /* Client addr for connection based sockets */ 199 int namelen; /* Length of name */ 200 }; 201 202 struct nfsd_srvargs { 203 struct nfsd *nsd_nfsd; /* Pointer to in kernel nfsd struct */ 204 uid_t nsd_uid; /* Effective uid mapped to cred */ 205 u_int32_t nsd_haddr; /* Ip address of client */ 206 struct uucred nsd_cr; /* Cred. uid maps to */ 207 int nsd_authlen; /* Length of auth string (ret) */ 208 u_char *nsd_authstr; /* Auth string (ret) */ 209 int nsd_verflen; /* and the verfier */ 210 u_char *nsd_verfstr; 211 struct timeval nsd_timestamp; /* timestamp from verifier */ 212 u_int32_t nsd_ttl; /* credential ttl (sec) */ 213 NFSKERBKEY_T nsd_key; /* Session key */ 214 }; 215 216 struct nfsd_cargs { 217 char *ncd_dirp; /* Mount dir path */ 218 uid_t ncd_authuid; /* Effective uid */ 219 int ncd_authtype; /* Type of authenticator */ 220 u_int ncd_authlen; /* Length of authenticator string */ 221 u_char *ncd_authstr; /* Authenticator string */ 222 u_int ncd_verflen; /* and the verifier */ 223 u_char *ncd_verfstr; 224 NFSKERBKEY_T ncd_key; /* Session key */ 225 }; 226 227 struct mountd_exports_list { 228 const char *mel_path; 229 size_t mel_nexports; 230 struct export_args *mel_exports; 231 }; 232 233 /* 234 * try to keep nfsstats, which is exposed to userland via sysctl, 235 * compatible after NQNFS removal. 236 * 26 is the old value of NFS_NPROCS, which includes NQNFS procedures. 237 */ 238 #define NFSSTATS_NPROCS 26 239 240 /* 241 * Stats structure 242 */ 243 struct nfsstats { 244 int attrcache_hits; 245 int attrcache_misses; 246 int lookupcache_hits; 247 int lookupcache_misses; 248 int direofcache_hits; 249 int direofcache_misses; 250 int biocache_reads; 251 int read_bios; 252 int read_physios; 253 int biocache_writes; 254 int write_bios; 255 int write_physios; 256 int biocache_readlinks; 257 int readlink_bios; 258 int biocache_readdirs; 259 int readdir_bios; 260 int rpccnt[NFSSTATS_NPROCS]; 261 int rpcretries; 262 int srvrpccnt[NFSSTATS_NPROCS]; 263 int srvrpc_errs; 264 int srv_errs; 265 int rpcrequests; 266 int rpctimeouts; 267 int rpcunexpected; 268 int rpcinvalid; 269 int srvcache_inproghits; 270 int srvcache_idemdonehits; 271 int srvcache_nonidemdonehits; 272 int srvcache_misses; 273 int __srvnqnfs_leases; /* unused */ 274 int __srvnqnfs_maxleases; /* unused */ 275 int __srvnqnfs_getleases; /* unused */ 276 int srvvop_writes; 277 }; 278 279 /* 280 * Flags for nfssvc() system call. 281 */ 282 #define NFSSVC_BIOD 0x002 283 #define NFSSVC_NFSD 0x004 284 #define NFSSVC_ADDSOCK 0x008 285 #define NFSSVC_AUTHIN 0x010 286 #define NFSSVC_GOTAUTH 0x040 287 #define NFSSVC_AUTHINFAIL 0x080 288 #define NFSSVC_MNTD 0x100 289 #define NFSSVC_SETEXPORTSLIST 0x200 290 291 /* 292 * fs.nfs sysctl(3) identifiers 293 */ 294 #define NFS_NFSSTATS 1 /* struct: struct nfsstats */ 295 #define NFS_IOTHREADS 2 /* number of io threads */ 296 #define NFS_MAXID 3 297 298 #define NFS_NAMES { \ 299 { 0, 0 }, \ 300 { "nfsstats", CTLTYPE_STRUCT }, \ 301 { "iothreads", CTLTYPE_INT }, \ 302 } 303 304 /* 305 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts. 306 * What should be in this set is open to debate, but I believe that since 307 * I/O system calls on ufs are never interrupted by signals the set should 308 * be minimal. My reasoning is that many current programs that use signals 309 * such as SIGALRM will not expect file I/O system calls to be interrupted 310 * by them and break. 311 */ 312 #ifdef _KERNEL 313 314 struct uio; struct buf; struct vattr; struct nameidata; /* XXX */ 315 316 /* 317 * Socket errors ignored for connectionless sockets?? 318 * For now, ignore them all 319 */ 320 #define NFSIGNORE_SOERROR(s, e) \ 321 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \ 322 ((s) & PR_CONNREQUIRED) == 0) 323 324 /* 325 * Nfs outstanding request list element 326 */ 327 struct nfsreq { 328 TAILQ_ENTRY(nfsreq) r_chain; 329 struct mbuf *r_mreq; 330 struct mbuf *r_mrep; 331 struct mbuf *r_md; 332 void * r_dpos; 333 struct nfsmount *r_nmp; 334 u_int32_t r_xid; 335 int r_flags; /* flags on request, see below */ 336 int r_retry; /* max retransmission count */ 337 int r_rexmit; /* current retrans count */ 338 int r_timer; /* tick counter on reply */ 339 u_int32_t r_procnum; /* NFS procedure number */ 340 int r_rtt; /* RTT for rpc */ 341 struct lwp *r_lwp; /* LWP that did I/O system call */ 342 }; 343 344 /* 345 * Queue head for nfsreq's 346 */ 347 extern TAILQ_HEAD(nfsreqhead, nfsreq) nfs_reqq; 348 349 /* Flag values for r_flags */ 350 #define R_TIMING 0x01 /* timing request (in mntp) */ 351 #define R_SENT 0x02 /* request has been sent */ 352 #define R_SOFTTERM 0x04 /* soft mnt, too many retries */ 353 #define R_INTR 0x08 /* intr mnt, signal pending */ 354 #define R_SOCKERR 0x10 /* Fatal error on socket */ 355 #define R_TPRINTFMSG 0x20 /* Did a tprintf msg. */ 356 #define R_MUSTRESEND 0x40 /* Must resend request */ 357 #define R_REXMITTED 0x100 /* retransmitted after reconnect */ 358 359 /* 360 * A list of nfssvc_sock structures is maintained with all the sockets 361 * that require service by the nfsd. 362 * The nfsuid structs hang off of the nfssvc_sock structs in both lru 363 * and uid hash lists. 364 */ 365 #ifndef NFS_UIDHASHSIZ 366 #define NFS_UIDHASHSIZ 29 /* Tune the size of nfssvc_sock with this */ 367 #endif 368 #define NUIDHASH(sock, uid) \ 369 (&(sock)->ns_uidhashtbl[(uid) % NFS_UIDHASHSIZ]) 370 #ifndef NFS_WDELAYHASHSIZ 371 #define NFS_WDELAYHASHSIZ 16 /* and with this */ 372 #endif 373 #ifndef NFS_MUIDHASHSIZ 374 #define NFS_MUIDHASHSIZ 63 /* Tune the size of nfsmount with this */ 375 #endif 376 #define NMUIDHASH(nmp, uid) \ 377 (&(nmp)->nm_uidhashtbl[(uid) % NFS_MUIDHASHSIZ]) 378 #define NFSNOHASH(fhsum) ((fhsum) & nfsnodehash) 379 380 #ifndef NFS_DIRHASHSIZ 381 #define NFS_DIRHASHSIZ 64 382 #endif 383 #define NFSDIRHASH(np, off) \ 384 (&np->n_dircache[(nfs_dirhash((off)) & nfsdirhashmask)]) 385 386 /* 387 * Macros for storing/retrieving cookies into directory buffers. 388 */ 389 #define NFS_STASHCOOKIE(dp,off) \ 390 *((off_t *)((char *)(dp) + (dp)->d_reclen - sizeof (off_t))) = off 391 #define NFS_GETCOOKIE(dp) \ 392 (*((off_t *)((char *)(dp) + (dp)->d_reclen - sizeof (off_t)))) 393 #define NFS_STASHCOOKIE32(dp, val) \ 394 *((u_int32_t *)((char *)(dp) + (dp)->d_reclen - sizeof (off_t) - \ 395 sizeof (int))) = val 396 #define NFS_GETCOOKIE32(dp) \ 397 (*((u_int32_t *)((char *)(dp) + (dp)->d_reclen - sizeof (off_t) - \ 398 sizeof (int)))) 399 400 /* 401 * Flags passed to nfs_bioread(). 402 */ 403 #define NFSBIO_CACHECOOKIES 0x0001 /* Cache dir offset cookies */ 404 405 /* 406 * Network address hash list element 407 */ 408 union nethostaddr { 409 u_int32_t had_inetaddr; 410 struct mbuf *had_nam; 411 }; 412 413 struct nfsuid { 414 TAILQ_ENTRY(nfsuid) nu_lru; /* LRU chain */ 415 LIST_ENTRY(nfsuid) nu_hash; /* Hash list */ 416 int nu_flag; /* Flags */ 417 union nethostaddr nu_haddr; /* Host addr. for dgram sockets */ 418 kauth_cred_t nu_cr; /* Cred uid mapped to */ 419 int nu_expire; /* Expiry time (sec) */ 420 struct timeval nu_timestamp; /* Kerb. timestamp */ 421 u_int32_t nu_nickname; /* Nickname on server */ 422 NFSKERBKEY_T nu_key; /* and session key */ 423 }; 424 425 #define nu_inetaddr nu_haddr.had_inetaddr 426 #define nu_nam nu_haddr.had_nam 427 /* Bits for nu_flag */ 428 #define NU_INETADDR 0x1 429 #define NU_NAM 0x2 430 #ifdef INET6 431 #define NU_NETFAM(u) \ 432 (((u)->nu_flag & NU_INETADDR) ? \ 433 (((u)->nu_flag & NU_NAM) ? AF_INET6 : AF_INET) : AF_ISO) 434 #else 435 #define NU_NETFAM(u) (((u)->nu_flag & NU_INETADDR) ? AF_INET : AF_ISO) 436 #endif 437 438 struct nfssvc_sock { 439 kmutex_t ns_lock; 440 kcondvar_t ns_cv; 441 TAILQ_ENTRY(nfssvc_sock) ns_chain; /* List of all nfssvc_sock's */ 442 TAILQ_ENTRY(nfssvc_sock) ns_pending; /* List of pending sockets */ 443 TAILQ_HEAD(, nfsuid) ns_uidlruhead; 444 struct file *ns_fp; 445 struct socket *ns_so; 446 struct mbuf *ns_nam; 447 struct mbuf *ns_raw; 448 struct mbuf *ns_rawend; 449 struct mbuf *ns_rec; 450 struct mbuf *ns_recend; 451 struct mbuf *ns_frag; 452 int ns_flag; 453 int ns_solock; 454 int ns_cc; 455 int ns_reclen; 456 int ns_numuids; 457 u_int32_t ns_sref; 458 SIMPLEQ_HEAD(, nfsrv_descript) ns_sendq; /* send reply list */ 459 LIST_HEAD(, nfsrv_descript) ns_tq; /* Write gather lists */ 460 LIST_HEAD(, nfsuid) ns_uidhashtbl[NFS_UIDHASHSIZ]; 461 LIST_HEAD(nfsrvw_delayhash, nfsrv_descript) ns_wdelayhashtbl[NFS_WDELAYHASHSIZ]; 462 }; 463 464 /* Bits for "ns_flag" */ 465 #define SLP_VALID 0x01 466 #define SLP_DOREC 0x02 /* on nfssvc_sockpending queue */ 467 #define SLP_NEEDQ 0x04 468 #define SLP_DISCONN 0x08 469 #define SLP_BUSY 0x10 470 #define SLP_LASTFRAG 0x40 471 #define SLP_SENDING 0x80 472 473 extern TAILQ_HEAD(nfssvc_sockhead, nfssvc_sock) nfssvc_sockhead; 474 extern struct nfssvc_sockhead nfssvc_sockpending; 475 extern int nfssvc_sockhead_flag; 476 #define SLP_INIT 0x01 477 478 /* 479 * One of these structures is allocated for each nfsd. 480 */ 481 struct nfsd { 482 TAILQ_ENTRY(nfsd) nfsd_chain; /* List of all nfsd's */ 483 SLIST_ENTRY(nfsd) nfsd_idle; /* List of idle nfsd's */ 484 kcondvar_t nfsd_cv; 485 int nfsd_flag; /* NFSD_ flags */ 486 struct nfssvc_sock *nfsd_slp; /* Current socket */ 487 int nfsd_authlen; /* Authenticator len */ 488 u_char nfsd_authstr[RPCAUTH_MAXSIZ]; /* Authenticator data */ 489 int nfsd_verflen; /* and the Verifier */ 490 u_char nfsd_verfstr[RPCVERF_MAXSIZ]; 491 struct proc *nfsd_procp; /* Proc ptr */ 492 struct nfsrv_descript *nfsd_nd; /* Associated nfsrv_descript */ 493 }; 494 495 /* Bits for "nfsd_flag" */ 496 #define NFSD_NEEDAUTH 0x04 497 #define NFSD_AUTHFAIL 0x08 498 499 #define NFSD_MAXFHSIZE 64 500 typedef struct nfsrvfh { 501 size_t nsfh_size; 502 union { 503 fhandle_t u_fh; 504 uint8_t u_opaque[NFSD_MAXFHSIZE]; 505 } nsfh_u; 506 } nfsrvfh_t; 507 #define NFSRVFH_SIZE(nsfh) ((nsfh)->nsfh_size) 508 #define NFSRVFH_DATA(nsfh) ((nsfh)->nsfh_u.u_opaque) 509 #define NFSRVFH_FHANDLE(nsfh) (&(nsfh)->nsfh_u.u_fh) 510 511 /* 512 * This structure is used by the server for describing each request. 513 * Some fields are used only when write request gathering is performed. 514 */ 515 struct nfsrv_descript { 516 u_quad_t nd_time; /* Write deadline (usec) */ 517 off_t nd_off; /* Start byte offset */ 518 off_t nd_eoff; /* and end byte offset */ 519 LIST_ENTRY(nfsrv_descript) nd_hash; /* Hash list */ 520 LIST_ENTRY(nfsrv_descript) nd_tq; /* and timer list */ 521 LIST_HEAD(,nfsrv_descript) nd_coalesce; /* coalesced writes */ 522 SIMPLEQ_ENTRY(nfsrv_descript) nd_sendq; /* send reply list */ 523 struct mbuf *nd_mrep; /* Request mbuf list */ 524 struct mbuf *nd_md; /* Current dissect mbuf */ 525 struct mbuf *nd_mreq; /* Reply mbuf list */ 526 struct mbuf *nd_nam; /* and socket addr */ 527 struct mbuf *nd_nam2; /* return socket addr */ 528 void * nd_dpos; /* Current dissect pos */ 529 u_int32_t nd_procnum; /* RPC # */ 530 int nd_stable; /* storage type */ 531 int nd_flag; /* nd_flag */ 532 int nd_len; /* Length of this write */ 533 int nd_repstat; /* Reply status */ 534 u_int32_t nd_retxid; /* Reply xid */ 535 u_int32_t nd_duration; /* Lease duration */ 536 struct timeval nd_starttime; /* Time RPC initiated */ 537 nfsrvfh_t nd_fh; /* File handle */ 538 kauth_cred_t nd_cr; /* Credentials */ 539 }; 540 541 /* Bits for "nd_flag" */ 542 #define ND_READ LEASE_READ 543 #define ND_WRITE LEASE_WRITE 544 #define ND_CHECK 0x04 545 #define ND_LEASE (ND_READ | ND_WRITE | ND_CHECK) 546 #define ND_NFSV3 0x08 547 #define ND_KERBNICK 0x20 548 #define ND_KERBFULL 0x40 549 #define ND_KERBAUTH (ND_KERBNICK | ND_KERBFULL) 550 551 extern kmutex_t nfsd_lock; 552 extern kcondvar_t nfsd_initcv; 553 extern TAILQ_HEAD(nfsdhead, nfsd) nfsd_head; 554 extern SLIST_HEAD(nfsdidlehead, nfsd) nfsd_idle_head; 555 extern int nfsd_head_flag; 556 #define NFSD_CHECKSLP 0x01 557 558 extern struct mowner nfs_mowner; 559 extern struct nfsstats nfsstats; 560 extern int nfs_numasync; 561 562 /* 563 * These macros compare nfsrv_descript structures. 564 */ 565 #define NFSW_CONTIG(o, n) \ 566 ((o)->nd_eoff >= (n)->nd_off && \ 567 !memcmp((void *)&(o)->nd_fh, (void *)&(n)->nd_fh, NFSX_V3FH)) 568 569 /* 570 * Defines for WebNFS 571 */ 572 573 #define WEBNFS_ESC_CHAR '%' 574 #define WEBNFS_SPECCHAR_START 0x80 575 576 #define WEBNFS_NATIVE_CHAR 0x80 577 /* 578 * .. 579 * Possibly more here in the future. 580 */ 581 582 /* 583 * Macro for converting escape characters in WebNFS pathnames. 584 * Should really be in libkern. 585 */ 586 587 #define HEXTOC(c) \ 588 ((c) >= 'a' ? ((c) - ('a' - 10)) : \ 589 ((c) >= 'A' ? ((c) - ('A' - 10)) : ((c) - '0'))) 590 #define HEXSTRTOI(p) \ 591 ((HEXTOC(p[0]) << 4) + HEXTOC(p[1])) 592 593 /* 594 * Structure holding information for a publicly exported filesystem 595 * (WebNFS). Currently the specs allow just for one such filesystem. 596 */ 597 struct nfs_public { 598 int np_valid; /* Do we hold valid information */ 599 fhandle_t *np_handle; /* Filehandle for pub fs (internal) */ 600 struct mount *np_mount; /* Mountpoint of exported fs */ 601 char *np_index; /* Index file */ 602 }; 603 #endif /* _KERNEL */ 604 605 #endif /* _NFS_NFS_H */ 606
Indexes created Thu Sep 25 16:09:42 GMT 2025