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 * $FreeBSD: src/sys/nfs/nfs.h,v 1.53.2.5 2002/02/20 01:35:34 iedowse Exp $ 38 * $DragonFly: src/sys/vfs/nfs/nfs.h,v 1.11 2006/02/17 19:18:07 dillon Exp $ 39 */ 40 41 #ifndef _NFS_NFS_H_ 42 #define _NFS_NFS_H_ 43 44 #ifdef _KERNEL 45 #include "opt_nfs.h" 46 #endif 47 48 /* 49 * Tunable constants for nfs 50 */ 51 52 #define NFS_MAXIOVEC 34 53 #define NFS_TICKINTVL 5 /* Desired time for a tick (msec) */ 54 #define NFS_HZ (hz / nfs_ticks) /* Ticks/sec */ 55 #define NFS_TIMEO (1 * NFS_HZ) /* Default timeout = 1 second */ 56 #define NFS_MINTIMEO (1 * NFS_HZ) /* Min timeout to use */ 57 #define NFS_MAXTIMEO (60 * NFS_HZ) /* Max timeout to backoff to */ 58 #define NFS_MINIDEMTIMEO (5 * NFS_HZ) /* Min timeout for non-idempotent ops*/ 59 #define NFS_MAXREXMIT 100 /* Stop counting after this many */ 60 #define NFS_MAXWINDOW 1024 /* Max number of outstanding requests */ 61 #define NFS_RETRANS 10 /* Num of retrans for soft mounts */ 62 #define NFS_MAXGRPS 16 /* Max. size of groups list */ 63 #ifndef NFS_MINATTRTIMO 64 #define NFS_MINATTRTIMO 3 /* VREG attrib cache timeout in sec */ 65 #endif 66 #ifndef NFS_MAXATTRTIMO 67 #define NFS_MAXATTRTIMO 60 68 #endif 69 #ifndef NFS_MINDIRATTRTIMO 70 #define NFS_MINDIRATTRTIMO 30 /* VDIR attrib cache timeout in sec */ 71 #endif 72 #ifndef NFS_MAXDIRATTRTIMO 73 #define NFS_MAXDIRATTRTIMO 60 74 #endif 75 #define NFS_WSIZE 8192 /* Def. write data size <= 8192 */ 76 #define NFS_RSIZE 8192 /* Def. read data size <= 8192 */ 77 #define NFS_READDIRSIZE 8192 /* Def. readdir size */ 78 #define NFS_DEFRAHEAD 1 /* Def. read ahead # blocks */ 79 #define NFS_MAXRAHEAD 4 /* Max. read ahead # blocks */ 80 #define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */ 81 #define NFS_MAXASYNCDAEMON 20 /* Max. number async_daemons runnable */ 82 #define NFS_MAXGATHERDELAY 100 /* Max. write gather delay (msec) */ 83 #ifndef NFS_GATHERDELAY 84 #define NFS_GATHERDELAY 10 /* Default write gather delay (msec) */ 85 #endif 86 #define NFS_DIRBLKSIZ 4096 /* Must be a multiple of DIRBLKSIZ */ 87 #ifdef _KERNEL 88 #define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */ 89 #endif 90 91 /* 92 * Oddballs 93 */ 94 #define NMOD(a) ((a) % nfs_asyncdaemons) 95 #define NFS_CMPFH(n, f, s) \ 96 ((n)->n_fhsize == (s) && !bcmp((caddr_t)(n)->n_fhp, (caddr_t)(f), (s))) 97 #define NFS_ISV3(v) (VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV3) 98 #define NFS_SRVMAXDATA(n) \ 99 (((n)->nd_flag & ND_NFSV3) ? (((n)->nd_nam2) ? \ 100 NFS_MAXDGRAMDATA : NFS_MAXDATA) : NFS_V2MAXDATA) 101 102 /* 103 * XXX 104 * The B_INVAFTERWRITE flag should be set to whatever is required by the 105 * buffer cache code to say "Invalidate the block after it is written back". 106 */ 107 #define B_INVAFTERWRITE B_NOCACHE 108 109 /* 110 * The IO_METASYNC flag should be implemented for local file systems. 111 * (Until then, it is nothin at all.) 112 */ 113 #ifndef IO_METASYNC 114 #define IO_METASYNC 0 115 #endif 116 117 /* 118 * Arguments to mount NFS 119 */ 120 #define NFS_ARGSVERSION 3 /* change when nfs_args changes */ 121 struct nfs_args { 122 int version; /* args structure version number */ 123 struct sockaddr *addr; /* file server address */ 124 int addrlen; /* length of address */ 125 int sotype; /* Socket type */ 126 int proto; /* and Protocol */ 127 u_char *fh; /* File handle to be mounted */ 128 int fhsize; /* Size, in bytes, of fh */ 129 int flags; /* flags */ 130 int wsize; /* write size in bytes */ 131 int rsize; /* read size in bytes */ 132 int readdirsize; /* readdir size in bytes */ 133 int timeo; /* initial timeout in .1 secs */ 134 int retrans; /* times to retry send */ 135 int maxgrouplist; /* Max. size of group list */ 136 int readahead; /* # of blocks to readahead */ 137 int leaseterm; /* Term (sec) of lease */ 138 int deadthresh; /* Retrans threshold */ 139 char *hostname; /* server's name */ 140 int acregmin; /* cache attrs for reg files min time */ 141 int acregmax; /* cache attrs for reg files max time */ 142 int acdirmin; /* cache attrs for dirs min time */ 143 int acdirmax; /* cache attrs for dirs max time */ 144 }; 145 146 /* 147 * NFS mount option flags 148 */ 149 #define NFSMNT_SOFT 0x00000001 /* soft mount (hard is default) */ 150 #define NFSMNT_WSIZE 0x00000002 /* set write size */ 151 #define NFSMNT_RSIZE 0x00000004 /* set read size */ 152 #define NFSMNT_TIMEO 0x00000008 /* set initial timeout */ 153 #define NFSMNT_RETRANS 0x00000010 /* set number of request retries */ 154 #define NFSMNT_MAXGRPS 0x00000020 /* set maximum grouplist size */ 155 #define NFSMNT_INT 0x00000040 /* allow interrupts on hard mount */ 156 #define NFSMNT_NOCONN 0x00000080 /* Don't Connect the socket */ 157 #define NFSMNT_NQNFS 0x00000100 /* Use Nqnfs protocol */ 158 #define NFSMNT_NFSV3 0x00000200 /* Use NFS Version 3 protocol */ 159 #define NFSMNT_KERB 0x00000400 /* Use Kerberos authentication */ 160 #define NFSMNT_DUMBTIMR 0x00000800 /* Don't estimate rtt dynamically */ 161 #define NFSMNT_LEASETERM 0x00001000 /* set lease term (nqnfs) */ 162 #define NFSMNT_READAHEAD 0x00002000 /* set read ahead */ 163 #define NFSMNT_DEADTHRESH 0x00004000 /* set dead server retry thresh */ 164 #define NFSMNT_RESVPORT 0x00008000 /* Allocate a reserved port */ 165 #define NFSMNT_RDIRPLUS 0x00010000 /* Use Readdirplus for V3 */ 166 #define NFSMNT_READDIRSIZE 0x00020000 /* Set readdir size */ 167 #define NFSMNT_ACREGMIN 0x00040000 168 #define NFSMNT_ACREGMAX 0x00080000 169 #define NFSMNT_ACDIRMIN 0x00100000 170 #define NFSMNT_ACDIRMAX 0x00200000 171 172 #define NFSSTA_HASWRITEVERF 0x00040000 /* Has write verifier for V3 */ 173 #define NFSSTA_GOTPATHCONF 0x00080000 /* Got the V3 pathconf info */ 174 #define NFSSTA_GOTFSINFO 0x00100000 /* Got the V3 fsinfo */ 175 #define NFSSTA_MNTD 0x00200000 /* Mnt server for mnt point */ 176 #define NFSSTA_DISMINPROG 0x00400000 /* Dismount in progress */ 177 #define NFSSTA_DISMNT 0x00800000 /* Dismounted */ 178 #define NFSSTA_SNDLOCK 0x01000000 /* Send socket lock */ 179 #define NFSSTA_WANTSND 0x02000000 /* Want above */ 180 #define NFSSTA_RCVLOCK 0x04000000 /* Rcv socket lock */ 181 #define NFSSTA_WANTRCV 0x08000000 /* Want above */ 182 #define NFSSTA_WAITAUTH 0x10000000 /* Wait for authentication */ 183 #define NFSSTA_HASAUTH 0x20000000 /* Has authenticator */ 184 #define NFSSTA_WANTAUTH 0x40000000 /* Wants an authenticator */ 185 #define NFSSTA_AUTHERR 0x80000000 /* Authentication error */ 186 187 /* 188 * Structures for the nfssvc(2) syscall. Not that anyone but nfsd and mount_nfs 189 * should ever try and use it. 190 */ 191 struct nfsd_args { 192 int sock; /* Socket to serve */ 193 caddr_t name; /* Client addr for connection based sockets */ 194 int namelen; /* Length of name */ 195 }; 196 197 struct nfsd_srvargs { 198 struct nfsd *nsd_nfsd; /* Pointer to in kernel nfsd struct */ 199 uid_t nsd_uid; /* Effective uid mapped to cred */ 200 u_int32_t nsd_haddr; /* Ip address of client */ 201 struct ucred nsd_cr; /* Cred. uid maps to */ 202 u_int nsd_authlen; /* Length of auth string (ret) */ 203 u_char *nsd_authstr; /* Auth string (ret) */ 204 u_int nsd_verflen; /* and the verfier */ 205 u_char *nsd_verfstr; 206 struct timeval nsd_timestamp; /* timestamp from verifier */ 207 u_int32_t nsd_ttl; /* credential ttl (sec) */ 208 NFSKERBKEY_T nsd_key; /* Session key */ 209 }; 210 211 struct nfsd_cargs { 212 char *ncd_dirp; /* Mount dir path */ 213 uid_t ncd_authuid; /* Effective uid */ 214 int ncd_authtype; /* Type of authenticator */ 215 u_int ncd_authlen; /* Length of authenticator string */ 216 u_char *ncd_authstr; /* Authenticator string */ 217 u_int ncd_verflen; /* and the verifier */ 218 u_char *ncd_verfstr; 219 NFSKERBKEY_T ncd_key; /* Session key */ 220 }; 221 222 /* 223 * XXX to allow amd to include nfs.h without nfsproto.h 224 */ 225 #ifdef NFS_NPROCS 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 int accesscache_hits; 264 int accesscache_misses; 265 }; 266 #endif 267 268 /* 269 * Flags for nfssvc() system call. 270 */ 271 #define NFSSVC_BIOD 0x002 272 #define NFSSVC_NFSD 0x004 273 #define NFSSVC_ADDSOCK 0x008 274 #define NFSSVC_AUTHIN 0x010 275 #define NFSSVC_GOTAUTH 0x040 276 #define NFSSVC_AUTHINFAIL 0x080 277 #define NFSSVC_MNTD 0x100 278 279 /* 280 * fs.nfs sysctl(3) identifiers 281 */ 282 #define NFS_NFSSTATS 1 /* struct: struct nfsstats */ 283 #define NFS_NFSPRIVPORT 2 /* int: prohibit nfs to resvports */ 284 285 #define FS_NFS_NAMES { \ 286 { 0, 0 }, \ 287 { "nfsstats", CTLTYPE_STRUCT }, \ 288 { "nfsprivport", CTLTYPE_INT }, \ 289 } 290 291 #ifdef _KERNEL 292 293 #ifdef MALLOC_DECLARE 294 MALLOC_DECLARE(M_NFSREQ); 295 MALLOC_DECLARE(M_NFSDIROFF); 296 MALLOC_DECLARE(M_NFSRVDESC); 297 MALLOC_DECLARE(M_NFSUID); 298 MALLOC_DECLARE(M_NQLEASE); 299 MALLOC_DECLARE(M_NFSD); 300 MALLOC_DECLARE(M_NFSBIGFH); 301 MALLOC_DECLARE(M_NFSHASH); 302 #endif 303 304 #ifdef ZONE_INTERRUPT 305 extern vm_zone_t nfsmount_zone; 306 #endif 307 308 extern struct callout nfs_timer_handle; 309 310 struct uio; 311 struct buf; 312 struct bio; 313 struct vattr; 314 struct nlookupdata; 315 316 /* 317 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts. 318 * What should be in this set is open to debate, but I believe that since 319 * I/O system calls on ufs are never interrupted by signals the set should 320 * be minimal. My reasoning is that many current programs that use signals 321 * such as SIGALRM will not expect file I/O system calls to be interrupted 322 * by them and break. 323 */ 324 #define NFSINT_SIGMASK(set) \ 325 (SIGISMEMBER(set, SIGINT) || SIGISMEMBER(set, SIGTERM) || \ 326 SIGISMEMBER(set, SIGHUP) || SIGISMEMBER(set, SIGKILL) || \ 327 SIGISMEMBER(set, SIGQUIT)) 328 329 /* 330 * Socket errors ignored for connectionless sockets?? 331 * For now, ignore them all 332 */ 333 #define NFSIGNORE_SOERROR(s, e) \ 334 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \ 335 ((s) & PR_CONNREQUIRED) == 0) 336 337 /* 338 * Nfs outstanding request list element 339 */ 340 struct nfsreq { 341 TAILQ_ENTRY(nfsreq) r_chain; 342 struct mbuf *r_mreq; 343 struct mbuf *r_mrep; 344 struct mbuf *r_md; 345 caddr_t r_dpos; 346 struct nfsmount *r_nmp; 347 struct vnode *r_vp; 348 u_int32_t r_xid; 349 int r_flags; /* flags on request, see below */ 350 int r_retry; /* max retransmission count */ 351 int r_rexmit; /* current retrans count */ 352 int r_timer; /* tick counter on reply */ 353 u_int32_t r_procnum; /* NFS procedure number */ 354 int r_rtt; /* RTT for rpc */ 355 struct thread *r_td; /* Thread that did I/O system call */ 356 }; 357 358 /* 359 * Queue head for nfsreq's 360 */ 361 extern TAILQ_HEAD(nfs_reqq, nfsreq) nfs_reqq; 362 363 /* Flag values for r_flags */ 364 #define R_TIMING 0x0001 /* timing request (in mntp) */ 365 #define R_SENT 0x0002 /* request has been sent */ 366 #define R_SOFTTERM 0x0004 /* soft mnt, too many retries */ 367 #define R_INTR 0x0008 /* intr mnt, signal pending */ 368 #define R_SOCKERR 0x0010 /* Fatal error on socket */ 369 #define R_TPRINTFMSG 0x0020 /* Did a tprintf msg. */ 370 #define R_MUSTRESEND 0x0040 /* Must resend request */ 371 #define R_GETONEREP 0x0080 /* Probe for one reply only */ 372 #define R_MASKTIMER 0x0100 /* Timer should ignore this req */ 373 374 /* 375 * A list of nfssvc_sock structures is maintained with all the sockets 376 * that require service by the nfsd. 377 * The nfsuid structs hang off of the nfssvc_sock structs in both lru 378 * and uid hash lists. 379 */ 380 #ifndef NFS_UIDHASHSIZ 381 #define NFS_UIDHASHSIZ 29 /* Tune the size of nfssvc_sock with this */ 382 #endif 383 #define NUIDHASH(sock, uid) \ 384 (&(sock)->ns_uidhashtbl[(uid) % NFS_UIDHASHSIZ]) 385 #ifndef NFS_WDELAYHASHSIZ 386 #define NFS_WDELAYHASHSIZ 16 /* and with this */ 387 #endif 388 #define NWDELAYHASH(sock, f) \ 389 (&(sock)->ns_wdelayhashtbl[(*((u_int32_t *)(f))) % NFS_WDELAYHASHSIZ]) 390 #ifndef NFS_MUIDHASHSIZ 391 #define NFS_MUIDHASHSIZ 63 /* Tune the size of nfsmount with this */ 392 #endif 393 #define NMUIDHASH(nmp, uid) \ 394 (&(nmp)->nm_uidhashtbl[(uid) % NFS_MUIDHASHSIZ]) 395 #define NFSNOHASH(fhsum) \ 396 (&nfsnodehashtbl[(fhsum) & nfsnodehash]) 397 398 /* 399 * Network address hash list element 400 */ 401 union nethostaddr { 402 u_int32_t had_inetaddr; 403 struct sockaddr *had_nam; 404 }; 405 406 struct nfsuid { 407 TAILQ_ENTRY(nfsuid) nu_lru; /* LRU chain */ 408 LIST_ENTRY(nfsuid) nu_hash; /* Hash list */ 409 int nu_flag; /* Flags */ 410 union nethostaddr nu_haddr; /* Host addr. for dgram sockets */ 411 struct ucred nu_cr; /* Cred uid mapped to */ 412 int nu_expire; /* Expiry time (sec) */ 413 struct timeval nu_timestamp; /* Kerb. timestamp */ 414 u_int32_t nu_nickname; /* Nickname on server */ 415 NFSKERBKEY_T nu_key; /* and session key */ 416 }; 417 418 #define nu_inetaddr nu_haddr.had_inetaddr 419 #define nu_nam nu_haddr.had_nam 420 /* Bits for nu_flag */ 421 #define NU_INETADDR 0x1 422 #define NU_NAM 0x2 423 #define NU_NETFAM(u) (((u)->nu_flag & NU_INETADDR) ? AF_INET : AF_ISO) 424 425 struct nfsrv_rec { 426 STAILQ_ENTRY(nfsrv_rec) nr_link; 427 struct sockaddr *nr_address; 428 struct mbuf *nr_packet; 429 }; 430 431 struct nfssvc_sock { 432 TAILQ_ENTRY(nfssvc_sock) ns_chain; /* List of all nfssvc_sock's */ 433 TAILQ_HEAD(, nfsuid) ns_uidlruhead; 434 struct file *ns_fp; 435 struct socket *ns_so; 436 struct sockaddr *ns_nam; 437 struct mbuf *ns_raw; 438 struct mbuf *ns_rawend; 439 STAILQ_HEAD(, nfsrv_rec) ns_rec; 440 struct mbuf *ns_frag; 441 int ns_numrec; 442 int ns_flag; 443 int ns_solock; 444 int ns_cc; 445 int ns_reclen; 446 int ns_numuids; 447 u_int32_t ns_sref; 448 LIST_HEAD(, nfsrv_descript) ns_tq; /* Write gather lists */ 449 LIST_HEAD(, nfsuid) ns_uidhashtbl[NFS_UIDHASHSIZ]; 450 LIST_HEAD(nfsrvw_delayhash, nfsrv_descript) ns_wdelayhashtbl[NFS_WDELAYHASHSIZ]; 451 }; 452 453 /* Bits for "ns_flag" */ 454 #define SLP_VALID 0x01 455 #define SLP_DOREC 0x02 456 #define SLP_NEEDQ 0x04 457 #define SLP_DISCONN 0x08 458 #define SLP_GETSTREAM 0x10 459 #define SLP_LASTFRAG 0x20 460 #define SLP_ALLFLAGS 0xff 461 462 extern TAILQ_HEAD(nfssvc_sockhead, nfssvc_sock) nfssvc_sockhead; 463 extern int nfssvc_sockhead_flag; 464 #define SLP_INIT 0x01 465 #define SLP_WANTINIT 0x02 466 467 /* 468 * One of these structures is allocated for each nfsd. 469 */ 470 struct nfsd { 471 TAILQ_ENTRY(nfsd) nfsd_chain; /* List of all 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 thread *nfsd_td; /* thread 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 /* Bits for loadattrcache */ 489 #define NFS_LATTR_NOSHRINK 0x01 490 #define NFS_LATTR_NOMTIMECHECK 0x02 491 492 /* 493 * This structure is used by the server for describing each request. 494 * Some fields are used only when write request gathering is performed. 495 */ 496 struct nfsrv_descript { 497 u_quad_t nd_time; /* Write deadline (usec) */ 498 off_t nd_off; /* Start byte offset */ 499 off_t nd_eoff; /* and end byte offset */ 500 LIST_ENTRY(nfsrv_descript) nd_hash; /* Hash list */ 501 LIST_ENTRY(nfsrv_descript) nd_tq; /* and timer list */ 502 LIST_HEAD(,nfsrv_descript) nd_coalesce; /* coalesced writes */ 503 struct mbuf *nd_mrep; /* Request mbuf list */ 504 struct mbuf *nd_md; /* Current dissect mbuf */ 505 struct mbuf *nd_mreq; /* Reply mbuf list */ 506 struct sockaddr *nd_nam; /* and socket addr */ 507 struct sockaddr *nd_nam2; /* return socket addr */ 508 caddr_t nd_dpos; /* Current dissect pos */ 509 u_int32_t nd_procnum; /* RPC # */ 510 int nd_stable; /* storage type */ 511 int nd_flag; /* nd_flag */ 512 int nd_len; /* Length of this write */ 513 int nd_repstat; /* Reply status */ 514 u_int32_t nd_retxid; /* Reply xid */ 515 u_int32_t nd_duration; /* Lease duration */ 516 struct timeval nd_starttime; /* Time RPC initiated */ 517 fhandle_t nd_fh; /* File handle */ 518 struct ucred nd_cr; /* Credentials */ 519 }; 520 521 /* Bits for "nd_flag" */ 522 #define ND_READ LEASE_READ 523 #define ND_WRITE LEASE_WRITE 524 #define ND_CHECK 0x04 525 #define ND_LEASE (ND_READ | ND_WRITE | ND_CHECK) 526 #define ND_NFSV3 0x08 527 #define ND_NQNFS 0x10 528 #define ND_KERBNICK 0x20 529 #define ND_KERBFULL 0x40 530 #define ND_KERBAUTH (ND_KERBNICK | ND_KERBFULL) 531 532 extern TAILQ_HEAD(nfsd_head, nfsd) nfsd_head; 533 extern int nfsd_head_flag; 534 extern int nfsd_waiting; 535 #define NFSD_CHECKSLP 0x01 536 537 /* 538 * These macros compare nfsrv_descript structures. 539 */ 540 #define NFSW_CONTIG(o, n) \ 541 ((o)->nd_eoff >= (n)->nd_off && \ 542 !bcmp((caddr_t)&(o)->nd_fh, (caddr_t)&(n)->nd_fh, NFSX_V3FH)) 543 544 #define NFSW_SAMECRED(o, n) \ 545 (((o)->nd_flag & ND_KERBAUTH) == ((n)->nd_flag & ND_KERBAUTH) && \ 546 !bcmp((caddr_t)&(o)->nd_cr, (caddr_t)&(n)->nd_cr, \ 547 sizeof (struct ucred))) 548 549 /* 550 * Defines for WebNFS 551 */ 552 553 #define WEBNFS_ESC_CHAR '%' 554 #define WEBNFS_SPECCHAR_START 0x80 555 556 #define WEBNFS_NATIVE_CHAR 0x80 557 /* 558 * .. 559 * Possibly more here in the future. 560 */ 561 562 /* 563 * Macro for converting escape characters in WebNFS pathnames. 564 * Should really be in libkern. 565 */ 566 567 #define HEXTOC(c) \ 568 ((c) >= 'a' ? ((c) - ('a' - 10)) : \ 569 ((c) >= 'A' ? ((c) - ('A' - 10)) : ((c) - '0'))) 570 #define HEXSTRTOI(p) \ 571 ((HEXTOC(p[0]) << 4) + HEXTOC(p[1])) 572 573 #ifdef NFS_DEBUG 574 575 extern int nfs_debug; 576 #define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */ 577 #define NFS_DEBUG_WG 2 /* server write gathering */ 578 #define NFS_DEBUG_RC 4 /* server request caching */ 579 580 #define NFS_DPF(cat, args) \ 581 do { \ 582 if (nfs_debug & NFS_DEBUG_##cat) printf args; \ 583 } while (0) 584 585 #else 586 587 #define NFS_DPF(cat, args) 588 589 #endif 590 591 u_quad_t nfs_curusec (void); 592 int nfs_init (struct vfsconf *vfsp); 593 int nfs_uninit (struct vfsconf *vfsp); 594 int nfs_reply (struct nfsreq *); 595 int nfs_getreq (struct nfsrv_descript *,struct nfsd *,int); 596 int nfs_send (struct socket *, struct sockaddr *, struct mbuf *, 597 struct nfsreq *); 598 int nfs_rephead (int, struct nfsrv_descript *, struct nfssvc_sock *, 599 int, int, u_quad_t *, struct mbuf **, struct mbuf **, 600 caddr_t *); 601 int nfs_sndlock (struct nfsreq *); 602 void nfs_sndunlock (struct nfsreq *); 603 int nfs_slplock (struct nfssvc_sock *, int); 604 void nfs_slpunlock (struct nfssvc_sock *); 605 int nfs_disct (struct mbuf **, caddr_t *, int, int, caddr_t *); 606 int nfs_vinvalbuf (struct vnode *, int, struct thread *, int); 607 int nfs_readrpc (struct vnode *, struct uio *); 608 int nfs_writerpc (struct vnode *, struct uio *, int *, int *); 609 int nfs_commit (struct vnode *vp, u_quad_t offset, int cnt, 610 struct thread *td); 611 int nfs_readdirrpc (struct vnode *, struct uio *); 612 int nfs_asyncio (struct vnode *vp, struct bio *, struct thread *); 613 int nfs_doio (struct vnode *vp, struct bio *, struct thread *); 614 int nfs_readlinkrpc (struct vnode *, struct uio *); 615 int nfs_sigintr (struct nfsmount *, struct nfsreq *, struct thread *); 616 int nfs_readdirplusrpc (struct vnode *, struct uio *); 617 int nfsm_disct (struct mbuf **, caddr_t *, int, int, caddr_t *); 618 void nfsm_srvfattr (struct nfsrv_descript *, struct vattr *, 619 struct nfs_fattr *); 620 void nfsm_srvwcc (struct nfsrv_descript *, int, struct vattr *, int, 621 struct vattr *, struct mbuf **, char **); 622 void nfsm_srvpostopattr (struct nfsrv_descript *, int, struct vattr *, 623 struct mbuf **, char **); 624 int netaddr_match (int, union nethostaddr *, struct sockaddr *); 625 int nfs_request (struct vnode *, struct mbuf *, int, struct thread *, 626 struct ucred *, struct mbuf **, struct mbuf **, 627 caddr_t *); 628 int nfs_loadattrcache (struct vnode **, struct mbuf **, caddr_t *, 629 struct vattr *, int); 630 int nfs_namei (struct nlookupdata *, struct ucred *, int, 631 struct vnode **, struct vnode **, fhandle_t *, int, 632 struct nfssvc_sock *, struct sockaddr *, struct mbuf **, 633 caddr_t *, struct vnode **, struct thread *, int, int); 634 void nfsm_adj (struct mbuf *, int, int); 635 int nfsm_mbuftouio (struct mbuf **, struct uio *, int, caddr_t *); 636 void nfsrv_initcache (void); 637 int nfs_getauth (struct nfsmount *, struct nfsreq *, struct ucred *, 638 char **, int *, char *, int *, NFSKERBKEY_T); 639 int nfs_getnickauth (struct nfsmount *, struct ucred *, char **, 640 int *, char *, int); 641 int nfs_savenickauth (struct nfsmount *, struct ucred *, int, 642 NFSKERBKEY_T, struct mbuf **, char **, 643 struct mbuf *); 644 int nfs_adv (struct mbuf **, caddr_t *, int, int); 645 void nfs_nhinit (void); 646 int nfs_nmcancelreqs (struct nfsmount *); 647 void nfs_timer (void*); 648 int nfsrv_dorec (struct nfssvc_sock *, struct nfsd *, 649 struct nfsrv_descript **); 650 int nfsrv_getcache (struct nfsrv_descript *, struct nfssvc_sock *, 651 struct mbuf **); 652 void nfsrv_updatecache (struct nfsrv_descript *, int, struct mbuf *); 653 void nfsrv_cleancache (void); 654 int nfs_connect (struct nfsmount *, struct nfsreq *); 655 void nfs_disconnect (struct nfsmount *); 656 void nfs_safedisconnect (struct nfsmount *); 657 int nfs_getattrcache (struct vnode *, struct vattr *); 658 int nfsm_strtmbuf (struct mbuf **, char **, const char *, long); 659 int nfs_bioread (struct vnode *, struct uio *, int); 660 int nfsm_uiotombuf (struct uio *, struct mbuf **, int, caddr_t *); 661 void nfsrv_init (int); 662 void nfs_clearcommit (struct mount *); 663 int nfsrv_errmap (struct nfsrv_descript *, int); 664 void nfsrvw_sort (gid_t *, int); 665 void nfsrv_setcred (struct ucred *, struct ucred *); 666 int nfs_writebp (struct buf *, int, struct thread *); 667 int nfsrv_object_create (struct vnode *); 668 void nfsrv_wakenfsd (struct nfssvc_sock *slp, int nparallel); 669 int nfsrv_writegather (struct nfsrv_descript **, struct nfssvc_sock *, 670 struct thread *, struct mbuf **); 671 int nfs_fsinfo (struct nfsmount *, struct vnode *, struct thread *p); 672 673 int nfsrv3_access (struct nfsrv_descript *nfsd, 674 struct nfssvc_sock *slp, 675 struct thread *td, struct mbuf **mrq); 676 int nfsrv_commit (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 677 struct thread *td, struct mbuf **mrq); 678 int nfsrv_create (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 679 struct thread *td, struct mbuf **mrq); 680 int nfsrv_fhtovp (fhandle_t *, int, struct vnode **, struct ucred *, 681 struct nfssvc_sock *, struct sockaddr *, int *, 682 int, int); 683 int nfsrv_setpublicfs (struct mount *, struct netexport *, 684 struct export_args *); 685 int nfs_ispublicfh (fhandle_t *); 686 int nfsrv_fsinfo (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 687 struct thread *td, struct mbuf **mrq); 688 int nfsrv_getattr (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 689 struct thread *td, struct mbuf **mrq); 690 int nfsrv_link (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 691 struct thread *td, struct mbuf **mrq); 692 int nfsrv_lookup (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 693 struct thread *td, struct mbuf **mrq); 694 int nfsrv_mkdir (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 695 struct thread *td, struct mbuf **mrq); 696 int nfsrv_mknod (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 697 struct thread *td, struct mbuf **mrq); 698 int nfsrv_noop (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 699 struct thread *td, struct mbuf **mrq); 700 int nfsrv_null (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 701 struct thread *td, struct mbuf **mrq); 702 int nfsrv_pathconf (struct nfsrv_descript *nfsd, 703 struct nfssvc_sock *slp, struct thread *td, 704 struct mbuf **mrq); 705 int nfsrv_read (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 706 struct thread *td, struct mbuf **mrq); 707 int nfsrv_readdir (struct nfsrv_descript *nfsd, 708 struct nfssvc_sock *slp, 709 struct thread *td, struct mbuf **mrq); 710 int nfsrv_readdirplus (struct nfsrv_descript *nfsd, 711 struct nfssvc_sock *slp, struct thread *td, 712 struct mbuf **mrq); 713 int nfsrv_readlink (struct nfsrv_descript *nfsd, 714 struct nfssvc_sock *slp, struct thread *td, 715 struct mbuf **mrq); 716 int nfsrv_remove (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 717 struct thread *td, struct mbuf **mrq); 718 int nfsrv_rename (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 719 struct thread *td, struct mbuf **mrq); 720 int nfsrv_rmdir (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 721 struct thread *td, struct mbuf **mrq); 722 int nfsrv_setattr (struct nfsrv_descript *nfsd, 723 struct nfssvc_sock *slp, 724 struct thread *td, struct mbuf **mrq); 725 int nfsrv_statfs (struct nfsrv_descript *nfsd, 726 struct nfssvc_sock *slp, 727 struct thread *td, struct mbuf **mrq); 728 int nfsrv_symlink (struct nfsrv_descript *nfsd, 729 struct nfssvc_sock *slp, 730 struct thread *td, struct mbuf **mrq); 731 int nfsrv_write (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 732 struct thread *td, struct mbuf **mrq); 733 void nfsrv_rcv (struct socket *so, void *arg, int waitflag); 734 void nfsrv_slpderef (struct nfssvc_sock *slp); 735 int nfs_meta_setsize (struct vnode *vp, struct thread *td, u_quad_t nsize); 736 737 #endif /* _KERNEL */ 738 739 #endif 740