nfs.h revision 1.80
1 /* $NetBSD: nfs.h,v 1.80 2021/12/05 07:44:53 msaitoh 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 #ifdef _KERNEL 40 #include <sys/condvar.h> 41 #include <sys/fstypes.h> 42 #include <sys/mbuf.h> 43 #include <sys/mutex.h> 44 #include <sys/rbtree.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 (3 * NFS_HZ) /* Default timeout = 3 seconds */ 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 5 /* Attribute cache timeout in sec */ 64 #endif 65 #ifndef NFS_MAXATTRTIMO 66 #define NFS_MAXATTRTIMO 60 67 #endif 68 #define NFS_TRYLATERDEL 1 /* Initial try later delay (sec) */ 69 #define NFS_TRYLATERDELMAX (1*60) /* Maximum try later delay (sec) */ 70 #define NFS_TRYLATERDELMUL 2 /* Exponential backoff multiplier */ 71 72 #define NFS_CWNDSCALE 256 73 #define NFS_MAXCWND (NFS_CWNDSCALE * 32) 74 75 /* 76 * These can be overridden through <machine/param.h>, included via 77 * <sys/param.h>. This means that <sys/param.h> should always be 78 * included before this file. 79 */ 80 #ifndef NFS_WSIZE 81 #define NFS_WSIZE 8192 /* Def. write data size */ 82 #endif 83 #ifndef NFS_RSIZE 84 #define NFS_RSIZE 8192 /* Def. read data size */ 85 #endif 86 #ifndef NFS_READDIRSIZE 87 #define NFS_READDIRSIZE 8192 /* Def. readdir size */ 88 #endif 89 90 /* 91 * NFS client IO daemon threads. May be overridden by config options. 92 */ 93 #ifndef NFS_MAXASYNCDAEMON 94 #define NFS_MAXASYNCDAEMON 128 /* Max. number async_daemons runnable */ 95 #endif 96 97 /* 98 * NFS client read-ahead. May be overridden by config options. 99 * Should be no more than NFS_MAXASYNCDAEMON as each read-ahead operation 100 * requires one IO thread. 101 */ 102 #ifndef NFS_MAXRAHEAD 103 #define NFS_MAXRAHEAD 32 /* Max. read ahead # blocks */ 104 #endif 105 #define NFS_DEFRAHEAD 2 /* Def. read ahead # blocks */ 106 107 #define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */ 108 109 #define NFS_DEFDEADTHRESH NFS_NEVERDEAD /* Default nm_deadthresh */ 110 #define NFS_NEVERDEAD 9 /* Greater than max. nm_timeouts */ 111 112 #ifdef _KERNEL 113 extern int nfs_niothreads; /* Number of async_daemons desired */ 114 #ifndef NFS_DEFAULT_NIOTHREADS 115 #define NFS_DEFAULT_NIOTHREADS 4 116 #endif 117 #endif 118 #define NFS_MAXGATHERDELAY 100 /* Max. write gather delay (msec) */ 119 #ifndef NFS_GATHERDELAY 120 #define NFS_GATHERDELAY 10 /* Default write gather delay (msec) */ 121 #endif 122 123 /* 124 * NFS_DIRBLKSIZ is the size of buffers in the buffer cache used for 125 * NFS directory vnodes. NFS_DIRFRAGSIZ is the minimum aligned amount 126 * of data in those buffers, and thus the minimum amount of data 127 * that you can request. NFS_DIRFRAGSIZ should be no smaller than 128 * DIRBLKSIZ. 129 */ 130 131 #define NFS_DIRBLKSIZ 8192 /* Must be a multiple of DIRBLKSIZ */ 132 #define NFS_DIRFRAGSIZ 512 /* Same as DIRBLKSIZ, generally */ 133 134 /* 135 * Maximum number of directory entries cached per NFS node, to avoid 136 * having this grow without bounds on very large directories. The 137 * minimum size to get reasonable performance for emulated binaries 138 * is the maximum number of entries that fits in NFS_DIRBLKSIZ. 139 * For NFS_DIRBLKSIZ = 512, this would be 512 / 14 = 36. 140 */ 141 #define NFS_MAXDIRCACHE (NFS_DIRBLKSIZ / 14) 142 143 /* 144 * Oddballs 145 */ 146 #define NFS_CMPFH(n, f, s) \ 147 ((n)->n_fhsize == (s) && !memcmp((void *)(n)->n_fhp, (void *)(f), (s))) 148 #ifdef NFS_V2_ONLY 149 #define NFS_ISV3(v) (0) 150 #else 151 #define NFS_ISV3(v) (VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV3) 152 #endif 153 #define NFS_SRVMAXDATA(n) \ 154 (((n)->nd_flag & ND_NFSV3) ? (((n)->nd_nam2) ? \ 155 NFS_MAXDGRAMDATA : NFS_MAXDATA) : NFS_V2MAXDATA) 156 157 /* 158 * Use the vm_page flag reserved for pager use to indicate pages 159 * which have been written to the server but not yet committed. 160 */ 161 #define PG_NEEDCOMMIT PG_PAGER1 162 163 /* 164 * The IO_METASYNC flag should be implemented for local file systems. 165 * (Until then, it is nothin at all.) 166 */ 167 #ifndef IO_METASYNC 168 #define IO_METASYNC 0 169 #endif 170 171 /* 172 * Export arguments for local filesystem mount calls. 173 * Keep in mind that changing this structure modifies nfssvc(2)'s ABI (see 174 * 'struct mountd_exports_list' below). 175 * When modifying this structure, take care to also edit the 176 * nfs_update_exports_30 function in nfs_export.c accordingly to convert 177 * export_args to export_args30. 178 */ 179 struct export_args { 180 int ex_flags; /* export related flags */ 181 uid_t ex_root; /* mapping for root uid */ 182 struct uucred ex_anon; /* mapping for anonymous user */ 183 struct sockaddr *ex_addr; /* net address to which exported */ 184 int ex_addrlen; /* and the net address length */ 185 struct sockaddr *ex_mask; /* mask of valid bits in saddr */ 186 int ex_masklen; /* and the smask length */ 187 char *ex_indexfile; /* index file for WebNFS URLs */ 188 }; 189 190 /* 191 * Structures for the nfssvc(2) syscall. Not that anyone but mountd, nfsd and 192 * mount_nfs should ever try and use it. 193 */ 194 struct nfsd_args { 195 int sock; /* Socket to serve */ 196 void * name; /* Client addr for connection based sockets */ 197 int namelen; /* Length of name */ 198 }; 199 200 struct nfsd_srvargs { 201 struct nfsd *nsd_nfsd; /* Pointer to in kernel nfsd struct */ 202 uid_t nsd_uid; /* Effective uid mapped to cred */ 203 u_int32_t nsd_haddr; /* Ip address of client */ 204 struct uucred nsd_cr; /* Cred. uid maps to */ 205 int nsd_authlen; /* Length of auth string (ret) */ 206 u_char *nsd_authstr; /* Auth string (ret) */ 207 int nsd_verflen; /* and the verfier */ 208 u_char *nsd_verfstr; 209 struct timeval nsd_timestamp; /* timestamp from verifier */ 210 u_int32_t nsd_ttl; /* credential ttl (sec) */ 211 NFSKERBKEY_T nsd_key; /* Session key */ 212 }; 213 214 struct nfsd_cargs { 215 char *ncd_dirp; /* Mount dir path */ 216 uid_t ncd_authuid; /* Effective uid */ 217 int ncd_authtype; /* Type of authenticator */ 218 u_int ncd_authlen; /* Length of authenticator string */ 219 u_char *ncd_authstr; /* Authenticator string */ 220 u_int ncd_verflen; /* and the verifier */ 221 u_char *ncd_verfstr; 222 NFSKERBKEY_T ncd_key; /* Session key */ 223 }; 224 225 struct mountd_exports_list { 226 const char *mel_path; 227 size_t mel_nexports; 228 struct export_args *mel_exports; 229 }; 230 231 /* 232 * try to keep nfsstats, which is exposed to userland via sysctl, 233 * compatible after NQNFS removal. 234 * 26 is the old value of NFS_NPROCS, which includes NQNFS procedures. 235 */ 236 #define NFSSTATS_NPROCS 26 237 238 /* 239 * Stats structure 240 */ 241 struct nfsstats { 242 uint32_t attrcache_hits; 243 uint32_t attrcache_misses; 244 uint32_t lookupcache_hits; 245 uint32_t lookupcache_misses; 246 uint32_t direofcache_hits; 247 uint32_t direofcache_misses; 248 uint32_t biocache_reads; 249 uint32_t read_bios; 250 uint32_t read_physios; 251 uint32_t biocache_writes; 252 uint32_t write_bios; 253 uint32_t write_physios; 254 uint32_t biocache_readlinks; 255 uint32_t readlink_bios; 256 uint32_t biocache_readdirs; 257 uint32_t readdir_bios; 258 uint32_t rpccnt[NFSSTATS_NPROCS]; 259 uint32_t rpcretries; 260 uint32_t srvrpccnt[NFSSTATS_NPROCS]; 261 uint32_t srvrpc_errs; 262 uint32_t srv_errs; 263 uint32_t rpcrequests; 264 uint32_t rpctimeouts; 265 uint32_t rpcunexpected; 266 uint32_t rpcinvalid; 267 uint32_t srvcache_inproghits; 268 uint32_t srvcache_idemdonehits; 269 uint32_t srvcache_nonidemdonehits; 270 uint32_t srvcache_misses; 271 uint32_t __srvnqnfs_leases; /* unused */ 272 uint32_t __srvnqnfs_maxleases; /* unused */ 273 uint32_t __srvnqnfs_getleases; /* unused */ 274 uint32_t srvvop_writes; 275 }; 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 #define NFSSVC_SETEXPORTSLIST 0x200 288 #define NFSSVC_REPLACEEXPORTSLIST 0x400 289 290 /* 291 * fs.nfs sysctl(3) identifiers 292 */ 293 #define NFS_NFSSTATS 1 /* struct: struct nfsstats */ 294 #define NFS_IOTHREADS 2 /* number of io threads */ 295 296 /* 297 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts. 298 * What should be in this set is open to debate, but I believe that since 299 * I/O system calls on ufs are never interrupted by signals the set should 300 * be minimal. My reasoning is that many current programs that use signals 301 * such as SIGALRM will not expect file I/O system calls to be interrupted 302 * by them and break. 303 */ 304 #ifdef _KERNEL 305 306 struct uio; struct buf; struct vattr; struct nameidata; /* XXX */ 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 */ 319 struct nfsreq { 320 TAILQ_ENTRY(nfsreq) r_chain; 321 struct mbuf *r_mreq; 322 struct mbuf *r_mrep; 323 struct mbuf *r_md; 324 void * r_dpos; 325 struct nfsmount *r_nmp; 326 u_int32_t r_xid; 327 int r_flags; /* flags on request, see below */ 328 int r_retry; /* max retransmission count */ 329 int r_rexmit; /* current retrans count */ 330 u_int32_t r_procnum; /* NFS procedure number */ 331 int r_rtt; /* RTT for rpc */ 332 struct lwp *r_lwp; /* LWP that did I/O system call */ 333 }; 334 335 /* 336 * Queue head for nfsreq's 337 */ 338 extern TAILQ_HEAD(nfsreqhead, nfsreq) nfs_reqq; 339 extern kmutex_t nfs_reqq_lock; 340 341 /* Flag values for r_flags */ 342 #define R_TIMING 0x01 /* timing request (in mntp) */ 343 #define R_SENT 0x02 /* request has been sent */ 344 #define R_SOFTTERM 0x04 /* soft mnt, too many retries */ 345 #define R_INTR 0x08 /* intr mnt, signal pending */ 346 #define R_SOCKERR 0x10 /* Fatal error on socket */ 347 #define R_TPRINTFMSG 0x20 /* Did a tprintf msg. */ 348 #define R_MUSTRESEND 0x40 /* Must resend request */ 349 #define R_REXMITTED 0x100 /* retransmitted after reconnect */ 350 351 /* 352 * A list of nfssvc_sock structures is maintained with all the sockets 353 * that require service by the nfsd. 354 * The nfsuid structs hang off of the nfssvc_sock structs in both lru 355 * and uid hash lists. 356 */ 357 #ifndef NFS_UIDHASHSIZ 358 #define NFS_UIDHASHSIZ 29 /* Tune the size of nfssvc_sock with this */ 359 #endif 360 #define NUIDHASH(sock, uid) \ 361 (&(sock)->ns_uidhashtbl[(uid) % NFS_UIDHASHSIZ]) 362 #ifndef NFS_WDELAYHASHSIZ 363 #define NFS_WDELAYHASHSIZ 16 /* and with this */ 364 #endif 365 #ifndef NFS_MUIDHASHSIZ 366 #define NFS_MUIDHASHSIZ 63 /* Tune the size of nfsmount with this */ 367 #endif 368 #define NMUIDHASH(nmp, uid) \ 369 (&(nmp)->nm_uidhashtbl[(uid) % NFS_MUIDHASHSIZ]) 370 371 #ifndef NFS_DIRHASHSIZ 372 #define NFS_DIRHASHSIZ 64 373 #endif 374 #define NFSDIRHASH(np, off) \ 375 (&np->n_dircache[(nfs_dirhash((off)) & nfsdirhashmask)]) 376 377 /* 378 * Macros for storing/retrieving cookies into directory buffers. 379 */ 380 #define NFS_STASHCOOKIE(dp,off) \ 381 *((off_t *)((char *)(dp) + (dp)->d_reclen - sizeof (off_t))) = off 382 #define NFS_GETCOOKIE(dp) \ 383 (*((off_t *)((char *)(dp) + (dp)->d_reclen - sizeof (off_t)))) 384 #define NFS_STASHCOOKIE32(dp, val) \ 385 *((u_int32_t *)((char *)(dp) + (dp)->d_reclen - sizeof (off_t) - \ 386 sizeof (int))) = val 387 #define NFS_GETCOOKIE32(dp) \ 388 (*((u_int32_t *)((char *)(dp) + (dp)->d_reclen - sizeof (off_t) - \ 389 sizeof (int)))) 390 391 /* 392 * Flags passed to nfs_bioread(). 393 */ 394 #define NFSBIO_CACHECOOKIES 0x0001 /* Cache dir offset cookies */ 395 396 /* 397 * Network address hash list element 398 */ 399 union nethostaddr { 400 u_int32_t had_inetaddr; 401 struct mbuf *had_nam; 402 }; 403 404 struct nfsuid { 405 TAILQ_ENTRY(nfsuid) nu_lru; /* LRU chain */ 406 LIST_ENTRY(nfsuid) nu_hash; /* Hash list */ 407 int nu_flag; /* Flags */ 408 union nethostaddr nu_haddr; /* Host addr. for dgram sockets */ 409 kauth_cred_t nu_cr; /* Cred uid mapped to */ 410 int nu_expire; /* Expiry time (sec) */ 411 struct timeval nu_timestamp; /* Kerb. timestamp */ 412 u_int32_t nu_nickname; /* Nickname on server */ 413 NFSKERBKEY_T nu_key; /* and session key */ 414 }; 415 416 #define nu_inetaddr nu_haddr.had_inetaddr 417 #define nu_nam nu_haddr.had_nam 418 /* Bits for nu_flag */ 419 #define NU_INETADDR 0x1 420 #define NU_NAM 0x2 421 #define NU_NETFAM(u) \ 422 (((u)->nu_flag & NU_INETADDR) ? AF_INET : AF_INET6) 423 424 /* 425 * b: protected by SLP_BUSY 426 * g: protected by nfsd_lock 427 * s: protected by ns_lock 428 * a: protected by ns_alock 429 */ 430 431 struct nfssvc_sock { 432 kmutex_t ns_lock; 433 kmutex_t ns_alock; 434 kcondvar_t ns_cv; /* s: */ 435 TAILQ_ENTRY(nfssvc_sock) ns_chain; /* g: List of all nfssvc_sock */ 436 TAILQ_ENTRY(nfssvc_sock) ns_pending; /* g: List of pending sockets */ 437 TAILQ_HEAD(, nfsuid) ns_uidlruhead; 438 struct file *ns_fp; 439 struct socket *ns_so; 440 struct mbuf *ns_nam; 441 struct mbuf *ns_raw; /* b: */ 442 struct mbuf *ns_rawend; /* b: */ 443 struct mbuf *ns_rec; /* b: */ 444 struct mbuf *ns_recend; /* b: */ 445 struct mbuf *ns_frag; /* b: */ 446 int ns_flags; /* s: */ 447 int ns_aflags; /* a: */ 448 int ns_gflags; /* g: */ 449 int ns_sflags; /* b: */ 450 int ns_cc; /* b: */ 451 int ns_reclen; /* b: */ 452 int ns_numuids; 453 u_int32_t ns_sref; /* g: */ 454 SIMPLEQ_HEAD(, nfsrv_descript) ns_sendq; /* s: send reply list */ 455 LIST_HEAD(, nfsrv_descript) ns_tq; /* g: Write gather lists */ 456 LIST_HEAD(, nfsuid) ns_uidhashtbl[NFS_UIDHASHSIZ]; 457 LIST_HEAD(nfsrvw_delayhash, nfsrv_descript) ns_wdelayhashtbl[NFS_WDELAYHASHSIZ]; /* g: */ 458 }; 459 460 /* Bits for "ns_flags" */ 461 #define SLP_VALID 0x01 462 #define SLP_BUSY 0x10 463 #define SLP_SENDING 0x80 464 465 /* Bits for "ns_aflags" */ 466 #define SLP_A_NEEDQ 0x01 467 #define SLP_A_DISCONN 0x04 468 469 /* Bits for "ns_gflags" */ 470 #define SLP_G_DOREC 0x02 /* on nfssvc_sockpending queue */ 471 472 /* Bits for "ns_sflags" */ 473 #define SLP_S_LASTFRAG 0x40 474 475 extern TAILQ_HEAD(nfssvc_sockhead, nfssvc_sock) nfssvc_sockhead; 476 extern struct nfssvc_sockhead nfssvc_sockpending; 477 extern int nfssvc_sockhead_flag; 478 #define SLP_INIT 0x01 479 480 /* 481 * One of these structures is allocated for each nfsd. 482 */ 483 struct nfsd { 484 struct rb_node nfsd_node; /* Tree of all nfsd's */ 485 SLIST_ENTRY(nfsd) nfsd_idle; /* List of idle nfsd's */ 486 kcondvar_t nfsd_cv; 487 int nfsd_flag; /* NFSD_ flags */ 488 struct nfssvc_sock *nfsd_slp; /* Current socket */ 489 int nfsd_authlen; /* Authenticator len */ 490 u_char nfsd_authstr[RPCAUTH_MAXSIZ]; /* Authenticator data */ 491 int nfsd_verflen; /* and the Verifier */ 492 u_char nfsd_verfstr[RPCVERF_MAXSIZ]; 493 struct proc *nfsd_procp; /* Proc ptr */ 494 struct nfsrv_descript *nfsd_nd; /* Associated nfsrv_descript */ 495 uint32_t nfsd_cookie; /* Userland cookie, fits 32bit ptr */ 496 }; 497 498 /* Bits for "nfsd_flag" */ 499 #define NFSD_NEEDAUTH 0x04 500 #define NFSD_AUTHFAIL 0x08 501 502 #define NFSD_MAXFHSIZE 64 503 typedef struct nfsrvfh { 504 size_t nsfh_size; 505 union { 506 fhandle_t u_fh; 507 uint8_t u_opaque[NFSD_MAXFHSIZE]; 508 } nsfh_u; 509 } nfsrvfh_t; 510 #define NFSRVFH_SIZE(nsfh) ((nsfh)->nsfh_size) 511 #define NFSRVFH_DATA(nsfh) ((nsfh)->nsfh_u.u_opaque) 512 #define NFSRVFH_FHANDLE(nsfh) (&(nsfh)->nsfh_u.u_fh) 513 514 /* 515 * This structure is used by the server for describing each request. 516 * Some fields are used only when write request gathering is performed. 517 */ 518 struct nfsrv_descript { 519 u_quad_t nd_time; /* Write deadline (usec) */ 520 off_t nd_off; /* Start byte offset */ 521 off_t nd_eoff; /* and end byte offset */ 522 LIST_ENTRY(nfsrv_descript) nd_hash; /* Hash list */ 523 LIST_ENTRY(nfsrv_descript) nd_tq; /* and timer list */ 524 LIST_HEAD(,nfsrv_descript) nd_coalesce; /* coalesced writes */ 525 SIMPLEQ_ENTRY(nfsrv_descript) nd_sendq; /* send reply list */ 526 struct mbuf *nd_mrep; /* Request mbuf list */ 527 struct mbuf *nd_md; /* Current dissect mbuf */ 528 struct mbuf *nd_mreq; /* Reply mbuf list */ 529 struct mbuf *nd_nam; /* and socket addr */ 530 struct mbuf *nd_nam2; /* return socket addr */ 531 void * nd_dpos; /* Current dissect pos */ 532 u_int32_t nd_procnum; /* RPC # */ 533 int nd_stable; /* storage type */ 534 int nd_flag; /* nd_flag */ 535 int nd_len; /* Length of this write */ 536 int nd_repstat; /* Reply status */ 537 u_int32_t nd_retxid; /* Reply xid */ 538 u_int32_t nd_duration; /* Lease duration */ 539 struct timeval nd_starttime; /* Time RPC initiated */ 540 nfsrvfh_t nd_fh; /* File handle */ 541 kauth_cred_t nd_cr; /* Credentials */ 542 }; 543 544 /* Bits for "nd_flag" */ 545 #define ND_READ 0x01 /* Check lease for readers */ 546 #define ND_WRITE 0x02 /* Check lease for modifiers */ 547 #define ND_CHECK 0x04 548 #define ND_LEASE (ND_READ | ND_WRITE | ND_CHECK) 549 #define ND_NFSV3 0x08 550 #define ND_KERBNICK 0x20 551 #define ND_KERBFULL 0x40 552 #define ND_KERBAUTH (ND_KERBNICK | ND_KERBFULL) 553 554 extern kmutex_t nfsd_lock; 555 extern kcondvar_t nfsd_initcv; 556 extern SLIST_HEAD(nfsdidlehead, nfsd) nfsd_idle_head; 557 extern int nfsd_head_flag; 558 #define NFSD_CHECKSLP 0x01 559 560 extern struct mowner nfs_mowner; 561 extern struct nfsstats nfsstats; 562 extern int nfs_numasync; 563 564 /* 565 * These macros compare nfsrv_descript structures. 566 */ 567 #define NFSW_CONTIG(o, n) \ 568 ((o)->nd_eoff >= (n)->nd_off && \ 569 !memcmp((void *)&(o)->nd_fh, (void *)&(n)->nd_fh, NFSX_V3FH)) 570 571 /* 572 * Defines for WebNFS 573 */ 574 575 #define WEBNFS_ESC_CHAR '%' 576 #define WEBNFS_SPECCHAR_START 0x80 577 578 #define WEBNFS_NATIVE_CHAR 0x80 579 /* 580 * .. 581 * Possibly more here in the future. 582 */ 583 584 /* 585 * Macro for converting escape characters in WebNFS pathnames. 586 * Should really be in libkern. 587 */ 588 589 #define HEXTOC(c) \ 590 ((c) >= 'a' ? ((c) - ('a' - 10)) : \ 591 ((c) >= 'A' ? ((c) - ('A' - 10)) : ((c) - '0'))) 592 #define HEXSTRTOI(p) \ 593 ((HEXTOC(p[0]) << 4) + HEXTOC(p[1])) 594 595 /* 596 * Structure holding information for a publicly exported filesystem 597 * (WebNFS). Currently the specs allow just for one such filesystem. 598 */ 599 struct nfs_public { 600 int np_valid; /* Do we hold valid information */ 601 fhandle_t *np_handle; /* Filehandle for pub fs (internal) */ 602 struct mount *np_mount; /* Mountpoint of exported fs */ 603 char *np_index; /* Index file */ 604 }; 605 #endif /* _KERNEL */ 606 607 #endif /* _NFS_NFS_H */ 608
Indexes created Wed Sep 24 22:09:59 GMT 2025