nfs.h revision 1.43
1 /* $NetBSD: nfs.h,v 1.43 2003/12/06 02:43:17 jonathan 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 NMOD(a) ((a) % nfs_asyncdaemons) 133 #define NFS_CMPFH(n, f, s) \ 134 ((n)->n_fhsize == (s) && !memcmp((caddr_t)(n)->n_fhp, (caddr_t)(f), (s))) 135 #ifdef NFS_V2_ONLY 136 #define NFS_ISV3(v) (0) 137 #else 138 #define NFS_ISV3(v) (VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV3) 139 #endif 140 #define NFS_SRVMAXDATA(n) \ 141 (((n)->nd_flag & ND_NFSV3) ? (((n)->nd_nam2) ? \ 142 NFS_MAXDGRAMDATA : NFS_MAXDATA) : NFS_V2MAXDATA) 143 144 /* 145 * The VA_EXCLUSIVE flag should be added for va_vaflags and set for an 146 * exclusive create. 147 */ 148 #if 0 149 #ifndef VA_EXCLUSIVE 150 #define VA_EXCLUSIVE 0 151 #endif 152 #endif 153 154 /* 155 * Use the vm_page flag reserved for pager use to indicate pages 156 * which have been written to the server but not yet committed. 157 */ 158 #define PG_NEEDCOMMIT PG_PAGER1 159 160 /* 161 * The IO_METASYNC flag should be implemented for local file systems. 162 * (Until then, it is nothin at all.) 163 */ 164 #ifndef IO_METASYNC 165 #define IO_METASYNC 0 166 #endif 167 168 /* 169 * Set the attribute timeout based on how recently the file has been modified. 170 */ 171 #define NFS_ATTRTIMEO(np) \ 172 ((((np)->n_flag & NMODIFIED) || \ 173 (time.tv_sec - (np)->n_mtime.tv_sec) / 10 < NFS_MINATTRTIMO) ? NFS_MINATTRTIMO : \ 174 ((time.tv_sec - (np)->n_mtime.tv_sec) / 10 > NFS_MAXATTRTIMO ? NFS_MAXATTRTIMO : \ 175 (time.tv_sec - (np)->n_mtime.tv_sec) / 10)) 176 177 /* 178 * Expected allocation sizes for major data structures. If the actual size 179 * of the structure exceeds these sizes, then malloc() will be allocating 180 * almost twice the memory required. This is used in nfs_init() to warn 181 * the sysadmin that the size of a structure should be reduced. 182 * (These sizes are always a power of 2. If the kernel malloc() changes 183 * to one that does not allocate space in powers of 2 size, then this all 184 * becomes bunk!) 185 */ 186 #define NFS_NODEALLOC 256 187 #define NFS_MNTALLOC 512 188 #define NFS_SVCALLOC 256 189 #define NFS_UIDALLOC 128 190 191 /* 192 * Structures for the nfssvc(2) syscall. Not that anyone but nfsd and mount_nfs 193 * should ever try and use it. 194 */ 195 struct 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 }; 200 201 struct 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_int32_t nsd_haddr; /* Ip address of client */ 205 struct uucred 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_int32_t nsd_ttl; /* credential ttl (sec) */ 212 NFSKERBKEY_T nsd_key; /* Session key */ 213 }; 214 215 struct nfsd_cargs { 216 char *ncd_dirp; /* Mount dir path */ 217 uid_t ncd_authuid; /* Effective uid */ 218 int ncd_authtype; /* Type of authenticator */ 219 u_int ncd_authlen; /* Length of authenticator string */ 220 u_char *ncd_authstr; /* Authenticator string */ 221 u_int ncd_verflen; /* and the verifier */ 222 u_char *ncd_verfstr; 223 NFSKERBKEY_T ncd_key; /* Session key */ 224 }; 225 226 /* 227 * Stats structure 228 */ 229 struct nfsstats { 230 int attrcache_hits; 231 int attrcache_misses; 232 int lookupcache_hits; 233 int lookupcache_misses; 234 int direofcache_hits; 235 int direofcache_misses; 236 int biocache_reads; 237 int read_bios; 238 int read_physios; 239 int biocache_writes; 240 int write_bios; 241 int write_physios; 242 int biocache_readlinks; 243 int readlink_bios; 244 int biocache_readdirs; 245 int readdir_bios; 246 int rpccnt[NFS_NPROCS]; 247 int rpcretries; 248 int srvrpccnt[NFS_NPROCS]; 249 int srvrpc_errs; 250 int srv_errs; 251 int rpcrequests; 252 int rpctimeouts; 253 int rpcunexpected; 254 int rpcinvalid; 255 int srvcache_inproghits; 256 int srvcache_idemdonehits; 257 int srvcache_nonidemdonehits; 258 int srvcache_misses; 259 int srvnqnfs_leases; 260 int srvnqnfs_maxleases; 261 int srvnqnfs_getleases; 262 int srvvop_writes; 263 }; 264 265 /* 266 * Flags for nfssvc() system call. 267 */ 268 #define NFSSVC_BIOD 0x002 269 #define NFSSVC_NFSD 0x004 270 #define NFSSVC_ADDSOCK 0x008 271 #define NFSSVC_AUTHIN 0x010 272 #define NFSSVC_GOTAUTH 0x040 273 #define NFSSVC_AUTHINFAIL 0x080 274 #define NFSSVC_MNTD 0x100 275 276 /* 277 * fs.nfs sysctl(3) identifiers 278 */ 279 #define NFS_NFSSTATS 1 /* struct: struct nfsstats */ 280 #define NFS_IOTHREADS 2 /* number of io threads */ 281 #define NFS_MAXID 3 282 283 #define NFS_NAMES { \ 284 { 0, 0 }, \ 285 { "nfsstats", CTLTYPE_STRUCT }, \ 286 { "iothreads", CTLTYPE_INT }, \ 287 } 288 289 /* 290 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts. 291 * What should be in this set is open to debate, but I believe that since 292 * I/O system calls on ufs are never interrupted by signals the set should 293 * be minimal. My reasoning is that many current programs that use signals 294 * such as SIGALRM will not expect file I/O system calls to be interrupted 295 * by them and break. 296 */ 297 #ifdef _KERNEL 298 299 struct uio; struct buf; struct vattr; struct nameidata; /* XXX */ 300 301 /* 302 * Socket errors ignored for connectionless sockets?? 303 * For now, ignore them all 304 */ 305 #define NFSIGNORE_SOERROR(s, e) \ 306 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \ 307 ((s) & PR_CONNREQUIRED) == 0) 308 309 /* 310 * Nfs outstanding request list element 311 */ 312 struct nfsreq { 313 TAILQ_ENTRY(nfsreq) r_chain; 314 struct mbuf *r_mreq; 315 struct mbuf *r_mrep; 316 struct mbuf *r_md; 317 caddr_t r_dpos; 318 struct nfsmount *r_nmp; 319 u_int32_t r_xid; 320 int r_flags; /* flags on request, see below */ 321 int r_retry; /* max retransmission count */ 322 int r_rexmit; /* current retrans count */ 323 int r_timer; /* tick counter on reply */ 324 u_int32_t r_procnum; /* NFS procedure number */ 325 int r_rtt; /* RTT for rpc */ 326 struct proc *r_procp; /* Proc that did I/O system call */ 327 }; 328 329 /* 330 * Queue head for nfsreq's 331 */ 332 extern TAILQ_HEAD(nfsreqhead, nfsreq) nfs_reqq; 333 334 /* Flag values for r_flags */ 335 #define R_TIMING 0x01 /* timing request (in mntp) */ 336 #define R_SENT 0x02 /* request has been sent */ 337 #define R_SOFTTERM 0x04 /* soft mnt, too many retries */ 338 #define R_INTR 0x08 /* intr mnt, signal pending */ 339 #define R_SOCKERR 0x10 /* Fatal error on socket */ 340 #define R_TPRINTFMSG 0x20 /* Did a tprintf msg. */ 341 #define R_MUSTRESEND 0x40 /* Must resend request */ 342 #define R_GETONEREP 0x80 /* Probe for one reply only */ 343 344 /* 345 * A list of nfssvc_sock structures is maintained with all the sockets 346 * that require service by the nfsd. 347 * The nfsuid structs hang off of the nfssvc_sock structs in both lru 348 * and uid hash lists. 349 */ 350 #ifndef NFS_UIDHASHSIZ 351 #define NFS_UIDHASHSIZ 29 /* Tune the size of nfssvc_sock with this */ 352 #endif 353 #define NUIDHASH(sock, uid) \ 354 (&(sock)->ns_uidhashtbl[(uid) % NFS_UIDHASHSIZ]) 355 #ifndef NFS_WDELAYHASHSIZ 356 #define NFS_WDELAYHASHSIZ 16 /* and with this */ 357 #endif 358 #define NWDELAYHASH(sock, f) \ 359 (&(sock)->ns_wdelayhashtbl[(*((u_int32_t *)(f))) % NFS_WDELAYHASHSIZ]) 360 #ifndef NFS_MUIDHASHSIZ 361 #define NFS_MUIDHASHSIZ 63 /* Tune the size of nfsmount with this */ 362 #endif 363 #define NMUIDHASH(nmp, uid) \ 364 (&(nmp)->nm_uidhashtbl[(uid) % NFS_MUIDHASHSIZ]) 365 #define NFSNOHASH(fhsum) ((fhsum) & nfsnodehash) 366 367 #ifndef NFS_DIRHASHSIZ 368 #define NFS_DIRHASHSIZ 64 369 #endif 370 #define NFSDIRHASH(np, off) \ 371 (&np->n_dircache[(nfs_dirhash((off)) & nfsdirhashmask)]) 372 373 /* 374 * Macros for storing/retrieving cookies into directory buffers. 375 */ 376 #define NFS_STASHCOOKIE(dp,off) \ 377 *((off_t *)((caddr_t)(dp) + (dp)->d_reclen - sizeof (off_t))) = off 378 #define NFS_GETCOOKIE(dp) \ 379 (*((off_t *)((caddr_t)(dp) + (dp)->d_reclen - sizeof (off_t)))) 380 #define NFS_STASHCOOKIE32(dp, val) \ 381 *((u_int32_t *)((caddr_t)(dp) + (dp)->d_reclen - sizeof (off_t) - \ 382 sizeof (int))) = val 383 #define NFS_GETCOOKIE32(dp) \ 384 (*((u_int32_t *)((caddr_t)(dp) + (dp)->d_reclen - sizeof (off_t) - \ 385 sizeof (int)))) 386 387 /* 388 * Flags passed to nfs_bioread(). 389 */ 390 #define NFSBIO_CACHECOOKIES 0x0001 /* Cache dir offset cookies */ 391 392 /* 393 * Network address hash list element 394 */ 395 union nethostaddr { 396 u_int32_t had_inetaddr; 397 struct mbuf *had_nam; 398 }; 399 400 struct nfsuid { 401 TAILQ_ENTRY(nfsuid) nu_lru; /* LRU chain */ 402 LIST_ENTRY(nfsuid) nu_hash; /* Hash list */ 403 int nu_flag; /* Flags */ 404 union nethostaddr nu_haddr; /* Host addr. for dgram sockets */ 405 struct ucred nu_cr; /* Cred uid mapped to */ 406 int nu_expire; /* Expiry time (sec) */ 407 struct timeval nu_timestamp; /* Kerb. timestamp */ 408 u_int32_t nu_nickname; /* Nickname on server */ 409 NFSKERBKEY_T nu_key; /* and session key */ 410 }; 411 412 #define nu_inetaddr nu_haddr.had_inetaddr 413 #define nu_nam nu_haddr.had_nam 414 /* Bits for nu_flag */ 415 #define NU_INETADDR 0x1 416 #define NU_NAM 0x2 417 #ifdef INET6 418 #define NU_NETFAM(u) \ 419 (((u)->nu_flag & NU_INETADDR) ? \ 420 (((u)->nu_flag & NU_NAM) ? AF_INET6 : AF_INET) : AF_ISO) 421 #else 422 #define NU_NETFAM(u) (((u)->nu_flag & NU_INETADDR) ? AF_INET : AF_ISO) 423 #endif 424 425 struct nfssvc_sock { 426 TAILQ_ENTRY(nfssvc_sock) ns_chain; /* List of all nfssvc_sock's */ 427 TAILQ_ENTRY(nfssvc_sock) ns_pending; /* List of pending sockets */ 428 TAILQ_HEAD(, nfsuid) ns_uidlruhead; 429 struct file *ns_fp; 430 struct socket *ns_so; 431 struct mbuf *ns_nam; 432 struct mbuf *ns_raw; 433 struct mbuf *ns_rawend; 434 struct mbuf *ns_rec; 435 struct mbuf *ns_recend; 436 struct mbuf *ns_frag; 437 int ns_flag; 438 int ns_solock; 439 int ns_cc; 440 int ns_reclen; 441 int ns_numuids; 442 u_int32_t ns_sref; 443 LIST_HEAD(, nfsrv_descript) ns_tq; /* Write gather lists */ 444 LIST_HEAD(, nfsuid) ns_uidhashtbl[NFS_UIDHASHSIZ]; 445 LIST_HEAD(nfsrvw_delayhash, nfsrv_descript) ns_wdelayhashtbl[NFS_WDELAYHASHSIZ]; 446 }; 447 448 /* Bits for "ns_flag" */ 449 #define SLP_VALID 0x01 450 #define SLP_DOREC 0x02 451 #define SLP_NEEDQ 0x04 452 #define SLP_DISCONN 0x08 453 #define SLP_GETSTREAM 0x10 454 #define SLP_LASTFRAG 0x20 455 #define SLP_ALLFLAGS 0xff 456 457 extern TAILQ_HEAD(nfssvc_sockhead, nfssvc_sock) nfssvc_sockhead; 458 extern struct nfssvc_sockhead nfssvc_sockpending; 459 extern int nfssvc_sockhead_flag; 460 #define SLP_INIT 0x01 461 #define SLP_WANTINIT 0x02 462 463 /* 464 * One of these structures is allocated for each nfsd. 465 */ 466 struct nfsd { 467 TAILQ_ENTRY(nfsd) nfsd_chain; /* List of all nfsd's */ 468 SLIST_ENTRY(nfsd) nfsd_idle; /* List of idle nfsd's */ 469 int nfsd_flag; /* NFSD_ flags */ 470 struct nfssvc_sock *nfsd_slp; /* Current socket */ 471 int nfsd_authlen; /* Authenticator len */ 472 u_char nfsd_authstr[RPCAUTH_MAXSIZ]; /* Authenticator data */ 473 int nfsd_verflen; /* and the Verifier */ 474 u_char nfsd_verfstr[RPCVERF_MAXSIZ]; 475 struct proc *nfsd_procp; /* Proc ptr */ 476 struct nfsrv_descript *nfsd_nd; /* Associated nfsrv_descript */ 477 }; 478 479 /* Bits for "nfsd_flag" */ 480 #define NFSD_WAITING 0x01 481 #define NFSD_REQINPROG 0x02 482 #define NFSD_NEEDAUTH 0x04 483 #define NFSD_AUTHFAIL 0x08 484 485 /* 486 * This structure is used by the server for describing each request. 487 * Some fields are used only when write request gathering is performed. 488 */ 489 struct nfsrv_descript { 490 u_quad_t nd_time; /* Write deadline (usec) */ 491 off_t nd_off; /* Start byte offset */ 492 off_t nd_eoff; /* and end byte offset */ 493 LIST_ENTRY(nfsrv_descript) nd_hash; /* Hash list */ 494 LIST_ENTRY(nfsrv_descript) nd_tq; /* and timer list */ 495 LIST_HEAD(,nfsrv_descript) nd_coalesce; /* coalesced writes */ 496 struct mbuf *nd_mrep; /* Request mbuf list */ 497 struct mbuf *nd_md; /* Current dissect mbuf */ 498 struct mbuf *nd_mreq; /* Reply mbuf list */ 499 struct mbuf *nd_nam; /* and socket addr */ 500 struct mbuf *nd_nam2; /* return socket addr */ 501 caddr_t nd_dpos; /* Current dissect pos */ 502 u_int32_t nd_procnum; /* RPC # */ 503 int nd_stable; /* storage type */ 504 int nd_flag; /* nd_flag */ 505 int nd_len; /* Length of this write */ 506 int nd_repstat; /* Reply status */ 507 u_int32_t nd_retxid; /* Reply xid */ 508 u_int32_t nd_duration; /* Lease duration */ 509 struct timeval nd_starttime; /* Time RPC initiated */ 510 fhandle_t nd_fh; /* File handle */ 511 struct ucred nd_cr; /* Credentials */ 512 }; 513 514 /* Bits for "nd_flag" */ 515 #define ND_READ LEASE_READ 516 #define ND_WRITE LEASE_WRITE 517 #define ND_CHECK 0x04 518 #define ND_LEASE (ND_READ | ND_WRITE | ND_CHECK) 519 #define ND_NFSV3 0x08 520 #define ND_NQNFS 0x10 521 #define ND_KERBNICK 0x20 522 #define ND_KERBFULL 0x40 523 #define ND_KERBAUTH (ND_KERBNICK | ND_KERBFULL) 524 525 extern struct simplelock nfsd_slock; 526 extern TAILQ_HEAD(nfsdhead, nfsd) nfsd_head; 527 extern SLIST_HEAD(nfsdidlehead, nfsd) nfsd_idle_head; 528 extern int nfsd_head_flag; 529 #define NFSD_CHECKSLP 0x01 530 531 extern struct mowner nfs_mowner; 532 extern struct nfsstats nfsstats; 533 extern int nfs_numasync; 534 535 /* 536 * These macros compare nfsrv_descript structures. 537 */ 538 #define NFSW_CONTIG(o, n) \ 539 ((o)->nd_eoff >= (n)->nd_off && \ 540 !memcmp((caddr_t)&(o)->nd_fh, (caddr_t)&(n)->nd_fh, NFSX_V3FH)) 541 542 #define NFSW_SAMECRED(o, n) \ 543 (((o)->nd_flag & ND_KERBAUTH) == ((n)->nd_flag & ND_KERBAUTH) && \ 544 !memcmp((caddr_t)&(o)->nd_cr, (caddr_t)&(n)->nd_cr, \ 545 sizeof (struct ucred))) 546 547 /* 548 * Defines for WebNFS 549 */ 550 551 #define WEBNFS_ESC_CHAR '%' 552 #define WEBNFS_SPECCHAR_START 0x80 553 554 #define WEBNFS_NATIVE_CHAR 0x80 555 /* 556 * .. 557 * Possibly more here in the future. 558 */ 559 560 /* 561 * Macro for converting escape characters in WebNFS pathnames. 562 * Should really be in libkern. 563 */ 564 565 #define HEXTOC(c) \ 566 ((c) >= 'a' ? ((c) - ('a' - 10)) : \ 567 ((c) >= 'A' ? ((c) - ('A' - 10)) : ((c) - '0'))) 568 #define HEXSTRTOI(p) \ 569 ((HEXTOC(p[0]) << 4) + HEXTOC(p[1])) 570 #endif /* _KERNEL */ 571 572 #endif /* _NFS_NFS_H */ 573
Indexes created Tue Sep 23 07:09:52 GMT 2025