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 1.14 2006/02/21 19:00:19 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_DEFATTRTIMO 67 #define NFS_DEFATTRTIMO 10 /* VREG attrib cache timeout in sec */ 68 #endif 69 #ifndef NFS_MAXATTRTIMO 70 #define NFS_MAXATTRTIMO 60 71 #endif 72 #ifndef NFS_MINDIRATTRTIMO 73 #define NFS_MINDIRATTRTIMO 30 /* VDIR attrib cache timeout in sec */ 74 #endif 75 #ifndef NFS_MAXDIRATTRTIMO 76 #define NFS_MAXDIRATTRTIMO 60 77 #endif 78 #define NFS_WSIZE 8192 /* Def. write data size <= 8192 */ 79 #define NFS_RSIZE 8192 /* Def. read data size <= 8192 */ 80 #define NFS_READDIRSIZE 8192 /* Def. readdir size */ 81 #define NFS_DEFRAHEAD 1 /* Def. read ahead # blocks */ 82 #define NFS_MAXRAHEAD 4 /* Max. read ahead # blocks */ 83 #define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */ 84 #define NFS_MAXASYNCDAEMON 20 /* Max. number async_daemons runnable */ 85 #define NFS_MAXGATHERDELAY 100 /* Max. write gather delay (msec) */ 86 #ifndef NFS_GATHERDELAY 87 #define NFS_GATHERDELAY 20 /* Default write gather delay (msec) */ 88 #endif 89 #define NFS_DIRBLKSIZ 4096 /* Must be a multiple of DIRBLKSIZ */ 90 #ifdef _KERNEL 91 #define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */ 92 #endif 93 94 /* 95 * Oddballs 96 */ 97 #define NMOD(a) ((a) % nfs_asyncdaemons) 98 #define NFS_CMPFH(n, f, s) \ 99 ((n)->n_fhsize == (s) && !bcmp((caddr_t)(n)->n_fhp, (caddr_t)(f), (s))) 100 #define NFS_ISV3(v) (VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV3) 101 #define NFS_SRVMAXDATA(n) \ 102 (((n)->nd_flag & ND_NFSV3) ? (((n)->nd_nam2) ? \ 103 NFS_MAXDGRAMDATA : NFS_MAXDATA) : NFS_V2MAXDATA) 104 105 /* 106 * XXX 107 * The B_INVAFTERWRITE flag should be set to whatever is required by the 108 * buffer cache code to say "Invalidate the block after it is written back". 109 */ 110 #define B_INVAFTERWRITE B_NOCACHE 111 112 /* 113 * The IO_METASYNC flag should be implemented for local file systems. 114 * (Until then, it is nothin at all.) 115 */ 116 #ifndef IO_METASYNC 117 #define IO_METASYNC 0 118 #endif 119 120 /* 121 * Arguments to mount NFS 122 */ 123 #define NFS_ARGSVERSION 3 /* change when nfs_args changes */ 124 struct nfs_args { 125 int version; /* args structure version number */ 126 struct sockaddr *addr; /* file server address */ 127 int addrlen; /* length of address */ 128 int sotype; /* Socket type */ 129 int proto; /* and Protocol */ 130 u_char *fh; /* File handle to be mounted */ 131 int fhsize; /* Size, in bytes, of fh */ 132 int flags; /* flags */ 133 int wsize; /* write size in bytes */ 134 int rsize; /* read size in bytes */ 135 int readdirsize; /* readdir size in bytes */ 136 int timeo; /* initial timeout in .1 secs */ 137 int retrans; /* times to retry send */ 138 int maxgrouplist; /* Max. size of group list */ 139 int readahead; /* # of blocks to readahead */ 140 int leaseterm; /* Term (sec) of lease */ 141 int deadthresh; /* Retrans threshold */ 142 char *hostname; /* server's name */ 143 int acregmin; /* cache attrs for reg files min time */ 144 int acregmax; /* cache attrs for reg files max time */ 145 int acdirmin; /* cache attrs for dirs min time */ 146 int acdirmax; /* cache attrs for dirs max time */ 147 }; 148 149 /* 150 * NFS mount option flags 151 */ 152 #define NFSMNT_SOFT 0x00000001 /* soft mount (hard is default) */ 153 #define NFSMNT_WSIZE 0x00000002 /* set write size */ 154 #define NFSMNT_RSIZE 0x00000004 /* set read size */ 155 #define NFSMNT_TIMEO 0x00000008 /* set initial timeout */ 156 #define NFSMNT_RETRANS 0x00000010 /* set number of request retries */ 157 #define NFSMNT_MAXGRPS 0x00000020 /* set maximum grouplist size */ 158 #define NFSMNT_INT 0x00000040 /* allow interrupts on hard mount */ 159 #define NFSMNT_NOCONN 0x00000080 /* Don't Connect the socket */ 160 #define NFSMNT_NQNFS 0x00000100 /* Use Nqnfs protocol */ 161 #define NFSMNT_NFSV3 0x00000200 /* Use NFS Version 3 protocol */ 162 #define NFSMNT_KERB 0x00000400 /* Use Kerberos authentication */ 163 #define NFSMNT_DUMBTIMR 0x00000800 /* Don't estimate rtt dynamically */ 164 #define NFSMNT_LEASETERM 0x00001000 /* set lease term (nqnfs) */ 165 #define NFSMNT_READAHEAD 0x00002000 /* set read ahead */ 166 #define NFSMNT_DEADTHRESH 0x00004000 /* set dead server retry thresh */ 167 #define NFSMNT_RESVPORT 0x00008000 /* Allocate a reserved port */ 168 #define NFSMNT_RDIRPLUS 0x00010000 /* Use Readdirplus for V3 */ 169 #define NFSMNT_READDIRSIZE 0x00020000 /* Set readdir size */ 170 #define NFSMNT_ACREGMIN 0x00040000 171 #define NFSMNT_ACREGMAX 0x00080000 172 #define NFSMNT_ACDIRMIN 0x00100000 173 #define NFSMNT_ACDIRMAX 0x00200000 174 175 #define NFSSTA_HASWRITEVERF 0x00040000 /* Has write verifier for V3 */ 176 #define NFSSTA_GOTPATHCONF 0x00080000 /* Got the V3 pathconf info */ 177 #define NFSSTA_GOTFSINFO 0x00100000 /* Got the V3 fsinfo */ 178 #define NFSSTA_MNTD 0x00200000 /* Mnt server for mnt point */ 179 #define NFSSTA_DISMINPROG 0x00400000 /* Dismount in progress */ 180 #define NFSSTA_DISMNT 0x00800000 /* Dismounted */ 181 #define NFSSTA_SNDLOCK 0x01000000 /* Send socket lock */ 182 #define NFSSTA_WANTSND 0x02000000 /* Want above */ 183 #define NFSSTA_RCVLOCK 0x04000000 /* Rcv socket lock */ 184 #define NFSSTA_WANTRCV 0x08000000 /* Want above */ 185 #define NFSSTA_WAITAUTH 0x10000000 /* Wait for authentication */ 186 #define NFSSTA_HASAUTH 0x20000000 /* Has authenticator */ 187 #define NFSSTA_WANTAUTH 0x40000000 /* Wants an authenticator */ 188 #define NFSSTA_AUTHERR 0x80000000 /* Authentication error */ 189 190 /* 191 * Structures for the nfssvc(2) syscall. Not that anyone but nfsd and mount_nfs 192 * should ever try and use it. 193 */ 194 struct nfsd_args { 195 int sock; /* Socket to serve */ 196 caddr_t 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 ucred nsd_cr; /* Cred. uid maps to */ 205 u_int nsd_authlen; /* Length of auth string (ret) */ 206 u_char *nsd_authstr; /* Auth string (ret) */ 207 u_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 /* 226 * XXX to allow amd to include nfs.h without nfsproto.h 227 */ 228 #ifdef NFS_NPROCS 229 /* 230 * Stats structure 231 */ 232 struct nfsstats { 233 int attrcache_hits; 234 int attrcache_misses; 235 int lookupcache_hits; 236 int lookupcache_misses; 237 int direofcache_hits; 238 int direofcache_misses; 239 int biocache_reads; 240 int read_bios; 241 int read_physios; 242 int biocache_writes; 243 int write_bios; 244 int write_physios; 245 int biocache_readlinks; 246 int readlink_bios; 247 int biocache_readdirs; 248 int readdir_bios; 249 int rpccnt[NFS_NPROCS]; 250 int rpcretries; 251 int srvrpccnt[NFS_NPROCS]; 252 int srvrpc_errs; 253 int srv_errs; 254 int rpcrequests; 255 int rpctimeouts; 256 int rpcunexpected; 257 int rpcinvalid; 258 int srvcache_inproghits; 259 int srvcache_idemdonehits; 260 int srvcache_nonidemdonehits; 261 int srvcache_misses; 262 int srvnqnfs_leases; 263 int srvnqnfs_maxleases; 264 int srvnqnfs_getleases; 265 int srvvop_writes; 266 int accesscache_hits; 267 int accesscache_misses; 268 }; 269 #endif 270 271 /* 272 * Flags for nfssvc() system call. 273 */ 274 #define NFSSVC_BIOD 0x002 275 #define NFSSVC_NFSD 0x004 276 #define NFSSVC_ADDSOCK 0x008 277 #define NFSSVC_AUTHIN 0x010 278 #define NFSSVC_GOTAUTH 0x040 279 #define NFSSVC_AUTHINFAIL 0x080 280 #define NFSSVC_MNTD 0x100 281 282 /* 283 * fs.nfs sysctl(3) identifiers 284 */ 285 #define NFS_NFSSTATS 1 /* struct: struct nfsstats */ 286 #define NFS_NFSPRIVPORT 2 /* int: prohibit nfs to resvports */ 287 288 #define FS_NFS_NAMES { \ 289 { 0, 0 }, \ 290 { "nfsstats", CTLTYPE_STRUCT }, \ 291 { "nfsprivport", CTLTYPE_INT }, \ 292 } 293 294 #ifdef _KERNEL 295 296 #ifdef MALLOC_DECLARE 297 MALLOC_DECLARE(M_NFSREQ); 298 MALLOC_DECLARE(M_NFSDIROFF); 299 MALLOC_DECLARE(M_NFSRVDESC); 300 MALLOC_DECLARE(M_NFSUID); 301 MALLOC_DECLARE(M_NQLEASE); 302 MALLOC_DECLARE(M_NFSD); 303 MALLOC_DECLARE(M_NFSBIGFH); 304 MALLOC_DECLARE(M_NFSHASH); 305 #endif 306 307 #ifdef ZONE_INTERRUPT 308 extern vm_zone_t nfsmount_zone; 309 #endif 310 311 extern struct callout nfs_timer_handle; 312 313 struct uio; 314 struct buf; 315 struct bio; 316 struct vattr; 317 struct nlookupdata; 318 319 /* 320 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts. 321 * What should be in this set is open to debate, but I believe that since 322 * I/O system calls on ufs are never interrupted by signals the set should 323 * be minimal. My reasoning is that many current programs that use signals 324 * such as SIGALRM will not expect file I/O system calls to be interrupted 325 * by them and break. 326 */ 327 #define NFSINT_SIGMASK(set) \ 328 (SIGISMEMBER(set, SIGINT) || SIGISMEMBER(set, SIGTERM) || \ 329 SIGISMEMBER(set, SIGHUP) || SIGISMEMBER(set, SIGKILL) || \ 330 SIGISMEMBER(set, SIGQUIT)) 331 332 /* 333 * Socket errors ignored for connectionless sockets?? 334 * For now, ignore them all 335 */ 336 #define NFSIGNORE_SOERROR(s, e) \ 337 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \ 338 ((s) & PR_CONNREQUIRED) == 0) 339 340 /* 341 * Nfs outstanding request list element 342 */ 343 struct nfsreq { 344 TAILQ_ENTRY(nfsreq) r_chain; 345 struct mbuf *r_mreq; 346 struct mbuf *r_mrep; 347 struct mbuf *r_md; 348 caddr_t r_dpos; 349 struct nfsmount *r_nmp; 350 struct vnode *r_vp; 351 u_int32_t r_xid; 352 int r_flags; /* flags on request, see below */ 353 int r_retry; /* max retransmission count */ 354 int r_rexmit; /* current retrans count */ 355 int r_timer; /* tick counter on reply */ 356 u_int32_t r_procnum; /* NFS procedure number */ 357 int r_rtt; /* RTT for rpc */ 358 struct thread *r_td; /* Thread that did I/O system call */ 359 }; 360 361 /* 362 * Queue head for nfsreq's 363 */ 364 extern TAILQ_HEAD(nfs_reqq, nfsreq) nfs_reqq; 365 366 /* Flag values for r_flags */ 367 #define R_TIMING 0x0001 /* timing request (in mntp) */ 368 #define R_SENT 0x0002 /* request has been sent */ 369 #define R_SOFTTERM 0x0004 /* soft mnt, too many retries */ 370 #define R_INTR 0x0008 /* intr mnt, signal pending */ 371 #define R_SOCKERR 0x0010 /* Fatal error on socket */ 372 #define R_TPRINTFMSG 0x0020 /* Did a tprintf msg. */ 373 #define R_MUSTRESEND 0x0040 /* Must resend request */ 374 #define R_GETONEREP 0x0080 /* Probe for one reply only */ 375 #define R_MASKTIMER 0x0100 /* Timer should ignore this req */ 376 #define R_LOCKED 0x0200 /* Locked by the timer */ 377 378 /* 379 * A list of nfssvc_sock structures is maintained with all the sockets 380 * that require service by the nfsd. 381 * The nfsuid structs hang off of the nfssvc_sock structs in both lru 382 * and uid hash lists. 383 */ 384 #ifndef NFS_UIDHASHSIZ 385 #define NFS_UIDHASHSIZ 29 /* Tune the size of nfssvc_sock with this */ 386 #endif 387 #define NUIDHASH(sock, uid) \ 388 (&(sock)->ns_uidhashtbl[(uid) % NFS_UIDHASHSIZ]) 389 #ifndef NFS_WDELAYHASHSIZ 390 #define NFS_WDELAYHASHSIZ 16 /* and with this */ 391 #endif 392 #define NWDELAYHASH(sock, f) \ 393 (&(sock)->ns_wdelayhashtbl[(*((u_int32_t *)(f))) % NFS_WDELAYHASHSIZ]) 394 #ifndef NFS_MUIDHASHSIZ 395 #define NFS_MUIDHASHSIZ 63 /* Tune the size of nfsmount with this */ 396 #endif 397 #define NMUIDHASH(nmp, uid) \ 398 (&(nmp)->nm_uidhashtbl[(uid) % NFS_MUIDHASHSIZ]) 399 #define NFSNOHASH(fhsum) \ 400 (&nfsnodehashtbl[(fhsum) & nfsnodehash]) 401 402 /* 403 * Network address hash list element 404 */ 405 union nethostaddr { 406 u_int32_t had_inetaddr; 407 struct sockaddr *had_nam; 408 }; 409 410 struct nfsuid { 411 TAILQ_ENTRY(nfsuid) nu_lru; /* LRU chain */ 412 LIST_ENTRY(nfsuid) nu_hash; /* Hash list */ 413 int nu_flag; /* Flags */ 414 union nethostaddr nu_haddr; /* Host addr. for dgram sockets */ 415 struct ucred nu_cr; /* Cred uid mapped to */ 416 int nu_expire; /* Expiry time (sec) */ 417 struct timeval nu_timestamp; /* Kerb. timestamp */ 418 u_int32_t nu_nickname; /* Nickname on server */ 419 NFSKERBKEY_T nu_key; /* and session key */ 420 }; 421 422 #define nu_inetaddr nu_haddr.had_inetaddr 423 #define nu_nam nu_haddr.had_nam 424 /* Bits for nu_flag */ 425 #define NU_INETADDR 0x1 426 #define NU_NAM 0x2 427 #define NU_NETFAM(u) (((u)->nu_flag & NU_INETADDR) ? AF_INET : AF_ISO) 428 429 struct nfsrv_rec { 430 STAILQ_ENTRY(nfsrv_rec) nr_link; 431 struct sockaddr *nr_address; 432 struct mbuf *nr_packet; 433 }; 434 435 struct nfssvc_sock { 436 TAILQ_ENTRY(nfssvc_sock) ns_chain; /* List of all nfssvc_sock's */ 437 TAILQ_HEAD(, nfsuid) ns_uidlruhead; 438 struct file *ns_fp; 439 struct socket *ns_so; 440 struct sockaddr *ns_nam; 441 struct mbuf *ns_raw; 442 struct mbuf *ns_rawend; 443 STAILQ_HEAD(, nfsrv_rec) ns_rec; 444 struct mbuf *ns_frag; 445 int ns_numrec; 446 int ns_flag; 447 int ns_solock; 448 int ns_cc; 449 int ns_reclen; 450 int ns_numuids; 451 u_int32_t ns_sref; 452 LIST_HEAD(, nfsrv_descript) ns_tq; /* Write gather lists */ 453 LIST_HEAD(, nfsuid) ns_uidhashtbl[NFS_UIDHASHSIZ]; 454 LIST_HEAD(nfsrvw_delayhash, nfsrv_descript) ns_wdelayhashtbl[NFS_WDELAYHASHSIZ]; 455 }; 456 457 /* Bits for "ns_flag" */ 458 #define SLP_VALID 0x01 459 #define SLP_DOREC 0x02 460 #define SLP_NEEDQ 0x04 461 #define SLP_DISCONN 0x08 462 #define SLP_GETSTREAM 0x10 463 #define SLP_LASTFRAG 0x20 464 #define SLP_ALLFLAGS 0xff 465 466 extern TAILQ_HEAD(nfssvc_sockhead, nfssvc_sock) nfssvc_sockhead; 467 extern int nfssvc_sockhead_flag; 468 #define SLP_INIT 0x01 469 #define SLP_WANTINIT 0x02 470 471 /* 472 * One of these structures is allocated for each nfsd. 473 */ 474 struct nfsd { 475 TAILQ_ENTRY(nfsd) nfsd_chain; /* List of all nfsd's */ 476 int nfsd_flag; /* NFSD_ flags */ 477 struct nfssvc_sock *nfsd_slp; /* Current socket */ 478 int nfsd_authlen; /* Authenticator len */ 479 u_char nfsd_authstr[RPCAUTH_MAXSIZ]; /* Authenticator data */ 480 int nfsd_verflen; /* and the Verifier */ 481 u_char nfsd_verfstr[RPCVERF_MAXSIZ]; 482 struct thread *nfsd_td; /* thread ptr */ 483 struct nfsrv_descript *nfsd_nd; /* Associated nfsrv_descript */ 484 }; 485 486 /* Bits for "nfsd_flag" */ 487 #define NFSD_WAITING 0x01 488 #define NFSD_REQINPROG 0x02 489 #define NFSD_NEEDAUTH 0x04 490 #define NFSD_AUTHFAIL 0x08 491 492 /* Bits for loadattrcache */ 493 #define NFS_LATTR_NOSHRINK 0x01 494 #define NFS_LATTR_NOMTIMECHECK 0x02 495 496 /* 497 * This structure is used by the server for describing each request. 498 * Some fields are used only when write request gathering is performed. 499 */ 500 struct nfsrv_descript { 501 u_quad_t nd_time; /* Write deadline (usec) */ 502 off_t nd_off; /* Start byte offset */ 503 off_t nd_eoff; /* and end byte offset */ 504 LIST_ENTRY(nfsrv_descript) nd_hash; /* Hash list */ 505 LIST_ENTRY(nfsrv_descript) nd_tq; /* and timer list */ 506 LIST_HEAD(,nfsrv_descript) nd_coalesce; /* coalesced writes */ 507 struct mbuf *nd_mrep; /* Request mbuf list */ 508 struct mbuf *nd_md; /* Current dissect mbuf */ 509 struct mbuf *nd_mreq; /* Reply mbuf list */ 510 struct sockaddr *nd_nam; /* and socket addr */ 511 struct sockaddr *nd_nam2; /* return socket addr */ 512 caddr_t nd_dpos; /* Current dissect pos */ 513 u_int32_t nd_procnum; /* RPC # */ 514 int nd_stable; /* storage type */ 515 int nd_flag; /* nd_flag */ 516 int nd_len; /* Length of this write */ 517 int nd_repstat; /* Reply status */ 518 u_int32_t nd_retxid; /* Reply xid */ 519 u_int32_t nd_duration; /* Lease duration */ 520 struct timeval nd_starttime; /* Time RPC initiated */ 521 fhandle_t nd_fh; /* File handle */ 522 struct ucred nd_cr; /* Credentials */ 523 }; 524 525 /* Bits for "nd_flag" */ 526 #define ND_READ LEASE_READ 527 #define ND_WRITE LEASE_WRITE 528 #define ND_CHECK 0x04 529 #define ND_LEASE (ND_READ | ND_WRITE | ND_CHECK) 530 #define ND_NFSV3 0x08 531 #define ND_NQNFS 0x10 532 #define ND_KERBNICK 0x20 533 #define ND_KERBFULL 0x40 534 #define ND_KERBAUTH (ND_KERBNICK | ND_KERBFULL) 535 536 extern TAILQ_HEAD(nfsd_head, nfsd) nfsd_head; 537 extern int nfsd_head_flag; 538 extern int nfsd_waiting; 539 #define NFSD_CHECKSLP 0x01 540 541 /* 542 * These macros compare nfsrv_descript structures. 543 */ 544 #define NFSW_CONTIG(o, n) \ 545 ((o)->nd_eoff >= (n)->nd_off && \ 546 !bcmp((caddr_t)&(o)->nd_fh, (caddr_t)&(n)->nd_fh, NFSX_V3FH)) 547 548 #define NFSW_SAMECRED(o, n) \ 549 (((o)->nd_flag & ND_KERBAUTH) == ((n)->nd_flag & ND_KERBAUTH) && \ 550 !bcmp((caddr_t)&(o)->nd_cr, (caddr_t)&(n)->nd_cr, \ 551 sizeof (struct ucred))) 552 553 /* 554 * Defines for WebNFS 555 */ 556 557 #define WEBNFS_ESC_CHAR '%' 558 #define WEBNFS_SPECCHAR_START 0x80 559 560 #define WEBNFS_NATIVE_CHAR 0x80 561 /* 562 * .. 563 * Possibly more here in the future. 564 */ 565 566 /* 567 * Macro for converting escape characters in WebNFS pathnames. 568 * Should really be in libkern. 569 */ 570 571 #define HEXTOC(c) \ 572 ((c) >= 'a' ? ((c) - ('a' - 10)) : \ 573 ((c) >= 'A' ? ((c) - ('A' - 10)) : ((c) - '0'))) 574 #define HEXSTRTOI(p) \ 575 ((HEXTOC(p[0]) << 4) + HEXTOC(p[1])) 576 577 #ifdef NFS_DEBUG 578 579 extern int nfs_debug; 580 #define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */ 581 #define NFS_DEBUG_WG 2 /* server write gathering */ 582 #define NFS_DEBUG_RC 4 /* server request caching */ 583 584 #define NFS_DPF(cat, args) \ 585 do { \ 586 if (nfs_debug & NFS_DEBUG_##cat) printf args; \ 587 } while (0) 588 589 #else 590 591 #define NFS_DPF(cat, args) 592 593 #endif 594 595 u_quad_t nfs_curusec (void); 596 int nfs_init (struct vfsconf *vfsp); 597 int nfs_uninit (struct vfsconf *vfsp); 598 int nfs_reply (struct nfsreq *); 599 int nfs_getreq (struct nfsrv_descript *,struct nfsd *,int); 600 int nfs_send (struct socket *, struct sockaddr *, struct mbuf *, 601 struct nfsreq *); 602 int nfs_rephead (int, struct nfsrv_descript *, struct nfssvc_sock *, 603 int, int, u_quad_t *, struct mbuf **, struct mbuf **, 604 caddr_t *); 605 int nfs_sndlock (struct nfsreq *); 606 void nfs_sndunlock (struct nfsreq *); 607 int nfs_slplock (struct nfssvc_sock *, int); 608 void nfs_slpunlock (struct nfssvc_sock *); 609 int nfs_disct (struct mbuf **, caddr_t *, int, int, caddr_t *); 610 int nfs_vinvalbuf (struct vnode *, int, struct thread *, int); 611 int nfs_readrpc (struct vnode *, struct uio *); 612 int nfs_writerpc (struct vnode *, struct uio *, int *, int *); 613 int nfs_commit (struct vnode *vp, u_quad_t offset, int cnt, 614 struct thread *td); 615 int nfs_readdirrpc (struct vnode *, struct uio *); 616 int nfs_asyncio (struct vnode *vp, struct bio *, struct thread *); 617 int nfs_doio (struct vnode *vp, struct bio *, struct thread *); 618 int nfs_readlinkrpc (struct vnode *, struct uio *); 619 int nfs_sigintr (struct nfsmount *, struct nfsreq *, struct thread *); 620 int nfs_readdirplusrpc (struct vnode *, struct uio *); 621 int nfsm_disct (struct mbuf **, caddr_t *, int, int, caddr_t *); 622 void nfsm_srvfattr (struct nfsrv_descript *, struct vattr *, 623 struct nfs_fattr *); 624 void nfsm_srvwcc (struct nfsrv_descript *, int, struct vattr *, int, 625 struct vattr *, struct mbuf **, char **); 626 void nfsm_srvpostopattr (struct nfsrv_descript *, int, struct vattr *, 627 struct mbuf **, char **); 628 int netaddr_match (int, union nethostaddr *, struct sockaddr *); 629 int nfs_request (struct vnode *, struct mbuf *, int, struct thread *, 630 struct ucred *, struct mbuf **, struct mbuf **, 631 caddr_t *); 632 int nfs_loadattrcache (struct vnode **, struct mbuf **, caddr_t *, 633 struct vattr *, int); 634 int nfs_namei (struct nlookupdata *, struct ucred *, int, 635 struct vnode **, struct vnode **, fhandle_t *, int, 636 struct nfssvc_sock *, struct sockaddr *, struct mbuf **, 637 caddr_t *, struct vnode **, struct thread *, int, int); 638 void nfsm_adj (struct mbuf *, int, int); 639 int nfsm_mbuftouio (struct mbuf **, struct uio *, int, caddr_t *); 640 void nfsrv_initcache (void); 641 int nfs_getauth (struct nfsmount *, struct nfsreq *, struct ucred *, 642 char **, int *, char *, int *, NFSKERBKEY_T); 643 int nfs_getnickauth (struct nfsmount *, struct ucred *, char **, 644 int *, char *, int); 645 int nfs_savenickauth (struct nfsmount *, struct ucred *, int, 646 NFSKERBKEY_T, struct mbuf **, char **, 647 struct mbuf *); 648 int nfs_adv (struct mbuf **, caddr_t *, int, int); 649 void nfs_nhinit (void); 650 int nfs_nmcancelreqs (struct nfsmount *); 651 void nfs_timer (void*); 652 int nfsrv_dorec (struct nfssvc_sock *, struct nfsd *, 653 struct nfsrv_descript **); 654 int nfsrv_getcache (struct nfsrv_descript *, struct nfssvc_sock *, 655 struct mbuf **); 656 void nfsrv_updatecache (struct nfsrv_descript *, int, struct mbuf *); 657 void nfsrv_cleancache (void); 658 int nfs_connect (struct nfsmount *, struct nfsreq *); 659 void nfs_disconnect (struct nfsmount *); 660 void nfs_safedisconnect (struct nfsmount *); 661 int nfs_getattrcache (struct vnode *, struct vattr *); 662 int nfsm_strtmbuf (struct mbuf **, char **, const char *, long); 663 int nfs_bioread (struct vnode *, struct uio *, int); 664 int nfsm_uiotombuf (struct uio *, struct mbuf **, int, caddr_t *); 665 void nfsrv_init (int); 666 void nfs_clearcommit (struct mount *); 667 int nfsrv_errmap (struct nfsrv_descript *, int); 668 void nfsrvw_sort (gid_t *, int); 669 void nfsrv_setcred (struct ucred *, struct ucred *); 670 int nfs_writebp (struct buf *, int, struct thread *); 671 int nfsrv_object_create (struct vnode *); 672 void nfsrv_wakenfsd (struct nfssvc_sock *slp, int nparallel); 673 int nfsrv_writegather (struct nfsrv_descript **, struct nfssvc_sock *, 674 struct thread *, struct mbuf **); 675 int nfs_fsinfo (struct nfsmount *, struct vnode *, struct thread *p); 676 677 int nfsrv3_access (struct nfsrv_descript *nfsd, 678 struct nfssvc_sock *slp, 679 struct thread *td, struct mbuf **mrq); 680 int nfsrv_commit (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 681 struct thread *td, struct mbuf **mrq); 682 int nfsrv_create (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 683 struct thread *td, struct mbuf **mrq); 684 int nfsrv_fhtovp (fhandle_t *, int, struct vnode **, struct ucred *, 685 struct nfssvc_sock *, struct sockaddr *, int *, 686 int, int); 687 int nfsrv_setpublicfs (struct mount *, struct netexport *, 688 struct export_args *); 689 int nfs_ispublicfh (fhandle_t *); 690 int nfsrv_fsinfo (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 691 struct thread *td, struct mbuf **mrq); 692 int nfsrv_getattr (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 693 struct thread *td, struct mbuf **mrq); 694 int nfsrv_link (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 695 struct thread *td, struct mbuf **mrq); 696 int nfsrv_lookup (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 697 struct thread *td, struct mbuf **mrq); 698 int nfsrv_mkdir (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 699 struct thread *td, struct mbuf **mrq); 700 int nfsrv_mknod (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 701 struct thread *td, struct mbuf **mrq); 702 int nfsrv_noop (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 703 struct thread *td, struct mbuf **mrq); 704 int nfsrv_null (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 705 struct thread *td, struct mbuf **mrq); 706 int nfsrv_pathconf (struct nfsrv_descript *nfsd, 707 struct nfssvc_sock *slp, struct thread *td, 708 struct mbuf **mrq); 709 int nfsrv_read (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 710 struct thread *td, struct mbuf **mrq); 711 int nfsrv_readdir (struct nfsrv_descript *nfsd, 712 struct nfssvc_sock *slp, 713 struct thread *td, struct mbuf **mrq); 714 int nfsrv_readdirplus (struct nfsrv_descript *nfsd, 715 struct nfssvc_sock *slp, struct thread *td, 716 struct mbuf **mrq); 717 int nfsrv_readlink (struct nfsrv_descript *nfsd, 718 struct nfssvc_sock *slp, struct thread *td, 719 struct mbuf **mrq); 720 int nfsrv_remove (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 721 struct thread *td, struct mbuf **mrq); 722 int nfsrv_rename (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 723 struct thread *td, struct mbuf **mrq); 724 int nfsrv_rmdir (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 725 struct thread *td, struct mbuf **mrq); 726 int nfsrv_setattr (struct nfsrv_descript *nfsd, 727 struct nfssvc_sock *slp, 728 struct thread *td, struct mbuf **mrq); 729 int nfsrv_statfs (struct nfsrv_descript *nfsd, 730 struct nfssvc_sock *slp, 731 struct thread *td, struct mbuf **mrq); 732 int nfsrv_symlink (struct nfsrv_descript *nfsd, 733 struct nfssvc_sock *slp, 734 struct thread *td, struct mbuf **mrq); 735 int nfsrv_write (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 736 struct thread *td, struct mbuf **mrq); 737 void nfsrv_rcv (struct socket *so, void *arg, int waitflag); 738 void nfsrv_slpderef (struct nfssvc_sock *slp); 739 int nfs_meta_setsize (struct vnode *vp, struct thread *td, u_quad_t nsize); 740 741 #endif /* _KERNEL */ 742 743 #endif 744