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 1.15 2006/03/27 16:18:39 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 #ifndef NFS_DEADTHRESH 79 #define NFS_DEADTHRESH NFS_NEVERDEAD 80 #endif 81 #define NFS_NEVERDEAD 9 82 #define NFS_WSIZE 8192 /* Def. write data size <= 8192 */ 83 #define NFS_RSIZE 8192 /* Def. read data size <= 8192 */ 84 #define NFS_READDIRSIZE 8192 /* Def. readdir size */ 85 #define NFS_DEFRAHEAD 1 /* Def. read ahead # blocks */ 86 #define NFS_MAXRAHEAD 4 /* Max. read ahead # blocks */ 87 #define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */ 88 #define NFS_MAXASYNCDAEMON 20 /* Max. number async_daemons runnable */ 89 #define NFS_MAXGATHERDELAY 100 /* Max. write gather delay (msec) */ 90 #ifndef NFS_GATHERDELAY 91 #define NFS_GATHERDELAY 20 /* Default write gather delay (msec) */ 92 #endif 93 #define NFS_DIRBLKSIZ 4096 /* Must be a multiple of DIRBLKSIZ */ 94 #ifdef _KERNEL 95 #define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */ 96 #endif 97 98 /* 99 * Oddballs 100 */ 101 #define NMOD(a) ((a) % nfs_asyncdaemons) 102 #define NFS_CMPFH(n, f, s) \ 103 ((n)->n_fhsize == (s) && !bcmp((caddr_t)(n)->n_fhp, (caddr_t)(f), (s))) 104 #define NFS_ISV3(v) (VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV3) 105 #define NFS_SRVMAXDATA(n) \ 106 (((n)->nd_flag & ND_NFSV3) ? (((n)->nd_nam2) ? \ 107 NFS_MAXDGRAMDATA : NFS_MAXDATA) : NFS_V2MAXDATA) 108 109 /* 110 * XXX 111 * The B_INVAFTERWRITE flag should be set to whatever is required by the 112 * buffer cache code to say "Invalidate the block after it is written back". 113 */ 114 #define B_INVAFTERWRITE B_NOCACHE 115 116 /* 117 * The IO_METASYNC flag should be implemented for local file systems. 118 * (Until then, it is nothin at all.) 119 */ 120 #ifndef IO_METASYNC 121 #define IO_METASYNC 0 122 #endif 123 124 /* 125 * Arguments to mount NFS 126 */ 127 #define NFS_ARGSVERSION 3 /* change when nfs_args changes */ 128 struct nfs_args { 129 int version; /* args structure version number */ 130 struct sockaddr *addr; /* file server address */ 131 int addrlen; /* length of address */ 132 int sotype; /* Socket type */ 133 int proto; /* and Protocol */ 134 u_char *fh; /* File handle to be mounted */ 135 int fhsize; /* Size, in bytes, of fh */ 136 int flags; /* flags */ 137 int wsize; /* write size in bytes */ 138 int rsize; /* read size in bytes */ 139 int readdirsize; /* readdir size in bytes */ 140 int timeo; /* initial timeout in .1 secs */ 141 int retrans; /* times to retry send */ 142 int maxgrouplist; /* Max. size of group list */ 143 int readahead; /* # of blocks to readahead */ 144 int unused01; /* Term (sec) of lease */ 145 int deadthresh; /* Retrans threshold */ 146 char *hostname; /* server's name */ 147 int acregmin; /* cache attrs for reg files min time */ 148 int acregmax; /* cache attrs for reg files max time */ 149 int acdirmin; /* cache attrs for dirs min time */ 150 int acdirmax; /* cache attrs for dirs max time */ 151 }; 152 153 /* 154 * NFS mount option flags 155 */ 156 #define NFSMNT_SOFT 0x00000001 /* soft mount (hard is default) */ 157 #define NFSMNT_WSIZE 0x00000002 /* set write size */ 158 #define NFSMNT_RSIZE 0x00000004 /* set read size */ 159 #define NFSMNT_TIMEO 0x00000008 /* set initial timeout */ 160 #define NFSMNT_RETRANS 0x00000010 /* set number of request retries */ 161 #define NFSMNT_MAXGRPS 0x00000020 /* set maximum grouplist size */ 162 #define NFSMNT_INT 0x00000040 /* allow interrupts on hard mount */ 163 #define NFSMNT_NOCONN 0x00000080 /* Don't Connect the socket */ 164 #define NFSMNT_UNUSED0100 0x00000100 165 #define NFSMNT_NFSV3 0x00000200 /* Use NFS Version 3 protocol */ 166 #define NFSMNT_KERB 0x00000400 /* Use Kerberos authentication */ 167 #define NFSMNT_DUMBTIMR 0x00000800 /* Don't estimate rtt dynamically */ 168 #define NFSMNT_UNUSED1000 0x00001000 /* set lease term (nqnfs) */ 169 #define NFSMNT_READAHEAD 0x00002000 /* set read ahead */ 170 #define NFSMNT_DEADTHRESH 0x00004000 /* set dead server retry thresh */ 171 #define NFSMNT_RESVPORT 0x00008000 /* Allocate a reserved port */ 172 #define NFSMNT_RDIRPLUS 0x00010000 /* Use Readdirplus for V3 */ 173 #define NFSMNT_READDIRSIZE 0x00020000 /* Set readdir size */ 174 #define NFSMNT_ACREGMIN 0x00040000 175 #define NFSMNT_ACREGMAX 0x00080000 176 #define NFSMNT_ACDIRMIN 0x00100000 177 #define NFSMNT_ACDIRMAX 0x00200000 178 179 #define NFSSTA_HASWRITEVERF 0x00040000 /* Has write verifier for V3 */ 180 #define NFSSTA_GOTPATHCONF 0x00080000 /* Got the V3 pathconf info */ 181 #define NFSSTA_GOTFSINFO 0x00100000 /* Got the V3 fsinfo */ 182 #define NFSSTA_MNTD 0x00200000 /* Mnt server for mnt point */ 183 #define NFSSTA_DISMINPROG 0x00400000 /* Dismount in progress */ 184 #define NFSSTA_DISMNT 0x00800000 /* Dismounted */ 185 #define NFSSTA_SNDLOCK 0x01000000 /* Send socket lock */ 186 #define NFSSTA_WANTSND 0x02000000 /* Want above */ 187 #define NFSSTA_RCVLOCK 0x04000000 /* Rcv socket lock */ 188 #define NFSSTA_WANTRCV 0x08000000 /* Want above */ 189 #define NFSSTA_WAITAUTH 0x10000000 /* Wait for authentication */ 190 #define NFSSTA_HASAUTH 0x20000000 /* Has authenticator */ 191 #define NFSSTA_WANTAUTH 0x40000000 /* Wants an authenticator */ 192 #define NFSSTA_AUTHERR 0x80000000 /* Authentication error */ 193 194 /* 195 * Structures for the nfssvc(2) syscall. Not that anyone but nfsd and mount_nfs 196 * should ever try and use it. 197 */ 198 struct nfsd_args { 199 int sock; /* Socket to serve */ 200 caddr_t name; /* Client addr for connection based sockets */ 201 int namelen; /* Length of name */ 202 }; 203 204 struct nfsd_srvargs { 205 struct nfsd *nsd_nfsd; /* Pointer to in kernel nfsd struct */ 206 uid_t nsd_uid; /* Effective uid mapped to cred */ 207 u_int32_t nsd_haddr; /* Ip address of client */ 208 struct ucred nsd_cr; /* Cred. uid maps to */ 209 u_int nsd_authlen; /* Length of auth string (ret) */ 210 u_char *nsd_authstr; /* Auth string (ret) */ 211 u_int nsd_verflen; /* and the verfier */ 212 u_char *nsd_verfstr; 213 struct timeval nsd_timestamp; /* timestamp from verifier */ 214 u_int32_t nsd_ttl; /* credential ttl (sec) */ 215 NFSKERBKEY_T nsd_key; /* Session key */ 216 }; 217 218 struct nfsd_cargs { 219 char *ncd_dirp; /* Mount dir path */ 220 uid_t ncd_authuid; /* Effective uid */ 221 int ncd_authtype; /* Type of authenticator */ 222 u_int ncd_authlen; /* Length of authenticator string */ 223 u_char *ncd_authstr; /* Authenticator string */ 224 u_int ncd_verflen; /* and the verifier */ 225 u_char *ncd_verfstr; 226 NFSKERBKEY_T ncd_key; /* Session key */ 227 }; 228 229 /* 230 * XXX to allow amd to include nfs.h without nfsproto.h 231 */ 232 #ifdef NFS_NPROCS 233 /* 234 * Stats structure 235 */ 236 struct nfsstats { 237 int attrcache_hits; 238 int attrcache_misses; 239 int lookupcache_hits; 240 int lookupcache_misses; 241 int direofcache_hits; 242 int direofcache_misses; 243 int biocache_reads; 244 int read_bios; 245 int read_physios; 246 int biocache_writes; 247 int write_bios; 248 int write_physios; 249 int biocache_readlinks; 250 int readlink_bios; 251 int biocache_readdirs; 252 int readdir_bios; 253 int rpccnt[NFS_NPROCS]; 254 int rpcretries; 255 int srvrpccnt[NFS_NPROCS]; 256 int srvrpc_errs; 257 int srv_errs; 258 int rpcrequests; 259 int rpctimeouts; 260 int rpcunexpected; 261 int rpcinvalid; 262 int srvcache_inproghits; 263 int srvcache_idemdonehits; 264 int srvcache_nonidemdonehits; 265 int srvcache_misses; 266 int srvnqnfs_leases; 267 int srvnqnfs_maxleases; 268 int srvnqnfs_getleases; 269 int srvvop_writes; 270 int accesscache_hits; 271 int accesscache_misses; 272 }; 273 #endif 274 275 /* 276 * Flags for nfssvc() system call. 277 */ 278 #define NFSSVC_BIOD 0x002 279 #define NFSSVC_NFSD 0x004 280 #define NFSSVC_ADDSOCK 0x008 281 #define NFSSVC_AUTHIN 0x010 282 #define NFSSVC_GOTAUTH 0x040 283 #define NFSSVC_AUTHINFAIL 0x080 284 #define NFSSVC_MNTD 0x100 285 286 /* 287 * fs.nfs sysctl(3) identifiers 288 */ 289 #define NFS_NFSSTATS 1 /* struct: struct nfsstats */ 290 #define NFS_NFSPRIVPORT 2 /* int: prohibit nfs to resvports */ 291 292 #define FS_NFS_NAMES { \ 293 { 0, 0 }, \ 294 { "nfsstats", CTLTYPE_STRUCT }, \ 295 { "nfsprivport", CTLTYPE_INT }, \ 296 } 297 298 #ifdef _KERNEL 299 300 #ifdef MALLOC_DECLARE 301 MALLOC_DECLARE(M_NFSREQ); 302 MALLOC_DECLARE(M_NFSDIROFF); 303 MALLOC_DECLARE(M_NFSRVDESC); 304 MALLOC_DECLARE(M_NFSUID); 305 MALLOC_DECLARE(M_NFSD); 306 MALLOC_DECLARE(M_NFSBIGFH); 307 MALLOC_DECLARE(M_NFSHASH); 308 #endif 309 310 #ifdef ZONE_INTERRUPT 311 extern vm_zone_t nfsmount_zone; 312 #endif 313 314 extern struct callout nfs_timer_handle; 315 316 struct uio; 317 struct buf; 318 struct bio; 319 struct vattr; 320 struct nlookupdata; 321 322 /* 323 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts. 324 * What should be in this set is open to debate, but I believe that since 325 * I/O system calls on ufs are never interrupted by signals the set should 326 * be minimal. My reasoning is that many current programs that use signals 327 * such as SIGALRM will not expect file I/O system calls to be interrupted 328 * by them and break. 329 */ 330 #define NFSINT_SIGMASK(set) \ 331 (SIGISMEMBER(set, SIGINT) || SIGISMEMBER(set, SIGTERM) || \ 332 SIGISMEMBER(set, SIGHUP) || SIGISMEMBER(set, SIGKILL) || \ 333 SIGISMEMBER(set, SIGQUIT)) 334 335 /* 336 * Socket errors ignored for connectionless sockets?? 337 * For now, ignore them all 338 */ 339 #define NFSIGNORE_SOERROR(s, e) \ 340 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \ 341 ((s) & PR_CONNREQUIRED) == 0) 342 343 /* 344 * Nfs outstanding request list element 345 */ 346 struct nfsreq { 347 TAILQ_ENTRY(nfsreq) r_chain; 348 struct mbuf *r_mreq; 349 struct mbuf *r_mrep; 350 struct mbuf *r_md; 351 caddr_t r_dpos; 352 struct nfsmount *r_nmp; 353 struct vnode *r_vp; 354 u_int32_t r_xid; 355 int r_flags; /* flags on request, see below */ 356 int r_retry; /* max retransmission count */ 357 int r_rexmit; /* current retrans count */ 358 int r_timer; /* tick counter on reply */ 359 u_int32_t r_procnum; /* NFS procedure number */ 360 int r_rtt; /* RTT for rpc */ 361 struct thread *r_td; /* Thread that did I/O system call */ 362 }; 363 364 /* 365 * Queue head for nfsreq's 366 */ 367 extern TAILQ_HEAD(nfs_reqq, nfsreq) nfs_reqq; 368 369 /* Flag values for r_flags */ 370 #define R_TIMING 0x0001 /* timing request (in mntp) */ 371 #define R_SENT 0x0002 /* request has been sent */ 372 #define R_SOFTTERM 0x0004 /* soft mnt, too many retries */ 373 #define R_INTR 0x0008 /* intr mnt, signal pending */ 374 #define R_SOCKERR 0x0010 /* Fatal error on socket */ 375 #define R_TPRINTFMSG 0x0020 /* Did a tprintf msg. */ 376 #define R_MUSTRESEND 0x0040 /* Must resend request */ 377 #define R_GETONEREP 0x0080 /* Probe for one reply only */ 378 #define R_MASKTIMER 0x0100 /* Timer should ignore this req */ 379 #define R_LOCKED 0x0200 /* Locked by the timer */ 380 381 /* 382 * A list of nfssvc_sock structures is maintained with all the sockets 383 * that require service by the nfsd. 384 * The nfsuid structs hang off of the nfssvc_sock structs in both lru 385 * and uid hash lists. 386 */ 387 #ifndef NFS_UIDHASHSIZ 388 #define NFS_UIDHASHSIZ 29 /* Tune the size of nfssvc_sock with this */ 389 #endif 390 #define NUIDHASH(sock, uid) \ 391 (&(sock)->ns_uidhashtbl[(uid) % NFS_UIDHASHSIZ]) 392 #ifndef NFS_WDELAYHASHSIZ 393 #define NFS_WDELAYHASHSIZ 16 /* and with this */ 394 #endif 395 #define NWDELAYHASH(sock, f) \ 396 (&(sock)->ns_wdelayhashtbl[(*((u_int32_t *)(f))) % NFS_WDELAYHASHSIZ]) 397 #ifndef NFS_MUIDHASHSIZ 398 #define NFS_MUIDHASHSIZ 63 /* Tune the size of nfsmount with this */ 399 #endif 400 #define NMUIDHASH(nmp, uid) \ 401 (&(nmp)->nm_uidhashtbl[(uid) % NFS_MUIDHASHSIZ]) 402 #define NFSNOHASH(fhsum) \ 403 (&nfsnodehashtbl[(fhsum) & nfsnodehash]) 404 405 /* 406 * Network address hash list element 407 */ 408 union nethostaddr { 409 u_int32_t had_inetaddr; 410 struct sockaddr *had_nam; 411 }; 412 413 struct nfsuid { 414 TAILQ_ENTRY(nfsuid) nu_lru; /* LRU chain */ 415 LIST_ENTRY(nfsuid) nu_hash; /* Hash list */ 416 int nu_flag; /* Flags */ 417 union nethostaddr nu_haddr; /* Host addr. for dgram sockets */ 418 struct ucred nu_cr; /* Cred uid mapped to */ 419 int nu_expire; /* Expiry time (sec) */ 420 struct timeval nu_timestamp; /* Kerb. timestamp */ 421 u_int32_t nu_nickname; /* Nickname on server */ 422 NFSKERBKEY_T nu_key; /* and session key */ 423 }; 424 425 #define nu_inetaddr nu_haddr.had_inetaddr 426 #define nu_nam nu_haddr.had_nam 427 /* Bits for nu_flag */ 428 #define NU_INETADDR 0x1 429 #define NU_NAM 0x2 430 #define NU_NETFAM(u) (((u)->nu_flag & NU_INETADDR) ? AF_INET : AF_ISO) 431 432 struct nfsrv_rec { 433 STAILQ_ENTRY(nfsrv_rec) nr_link; 434 struct sockaddr *nr_address; 435 struct mbuf *nr_packet; 436 }; 437 438 struct nfssvc_sock { 439 TAILQ_ENTRY(nfssvc_sock) ns_chain; /* List of all nfssvc_sock's */ 440 TAILQ_HEAD(, nfsuid) ns_uidlruhead; 441 struct file *ns_fp; 442 struct socket *ns_so; 443 struct sockaddr *ns_nam; 444 struct mbuf *ns_raw; 445 struct mbuf *ns_rawend; 446 STAILQ_HEAD(, nfsrv_rec) ns_rec; 447 struct mbuf *ns_frag; 448 int ns_numrec; 449 int ns_flag; 450 int ns_solock; 451 int ns_cc; 452 int ns_reclen; 453 int ns_numuids; 454 u_int32_t ns_sref; 455 LIST_HEAD(, nfsrv_descript) ns_tq; /* Write gather lists */ 456 LIST_HEAD(, nfsuid) ns_uidhashtbl[NFS_UIDHASHSIZ]; 457 LIST_HEAD(nfsrvw_delayhash, nfsrv_descript) ns_wdelayhashtbl[NFS_WDELAYHASHSIZ]; 458 }; 459 460 /* Bits for "ns_flag" */ 461 #define SLP_VALID 0x01 462 #define SLP_DOREC 0x02 463 #define SLP_NEEDQ 0x04 464 #define SLP_DISCONN 0x08 465 #define SLP_GETSTREAM 0x10 466 #define SLP_LASTFRAG 0x20 467 #define SLP_ALLFLAGS 0xff 468 469 extern TAILQ_HEAD(nfssvc_sockhead, nfssvc_sock) nfssvc_sockhead; 470 extern int nfssvc_sockhead_flag; 471 #define SLP_INIT 0x01 472 #define SLP_WANTINIT 0x02 473 474 /* 475 * One of these structures is allocated for each nfsd. 476 */ 477 struct nfsd { 478 TAILQ_ENTRY(nfsd) nfsd_chain; /* List of all nfsd's */ 479 int nfsd_flag; /* NFSD_ flags */ 480 struct nfssvc_sock *nfsd_slp; /* Current socket */ 481 int nfsd_authlen; /* Authenticator len */ 482 u_char nfsd_authstr[RPCAUTH_MAXSIZ]; /* Authenticator data */ 483 int nfsd_verflen; /* and the Verifier */ 484 u_char nfsd_verfstr[RPCVERF_MAXSIZ]; 485 struct thread *nfsd_td; /* thread ptr */ 486 struct nfsrv_descript *nfsd_nd; /* Associated nfsrv_descript */ 487 }; 488 489 /* Bits for "nfsd_flag" */ 490 #define NFSD_WAITING 0x01 491 #define NFSD_REQINPROG 0x02 492 #define NFSD_NEEDAUTH 0x04 493 #define NFSD_AUTHFAIL 0x08 494 495 /* Bits for loadattrcache */ 496 #define NFS_LATTR_NOSHRINK 0x01 497 #define NFS_LATTR_NOMTIMECHECK 0x02 498 499 /* 500 * This structure is used by the server for describing each request. 501 * Some fields are used only when write request gathering is performed. 502 */ 503 struct nfsrv_descript { 504 u_quad_t nd_time; /* Write deadline (usec) */ 505 off_t nd_off; /* Start byte offset */ 506 off_t nd_eoff; /* and end byte offset */ 507 LIST_ENTRY(nfsrv_descript) nd_hash; /* Hash list */ 508 LIST_ENTRY(nfsrv_descript) nd_tq; /* and timer list */ 509 LIST_HEAD(,nfsrv_descript) nd_coalesce; /* coalesced writes */ 510 struct mbuf *nd_mrep; /* Request mbuf list */ 511 struct mbuf *nd_md; /* Current dissect mbuf */ 512 struct mbuf *nd_mreq; /* Reply mbuf list */ 513 struct sockaddr *nd_nam; /* and socket addr */ 514 struct sockaddr *nd_nam2; /* return socket addr */ 515 caddr_t nd_dpos; /* Current dissect pos */ 516 u_int32_t nd_procnum; /* RPC # */ 517 int nd_stable; /* storage type */ 518 int nd_flag; /* nd_flag */ 519 int nd_len; /* Length of this write */ 520 int nd_repstat; /* Reply status */ 521 u_int32_t nd_retxid; /* Reply xid */ 522 struct timeval nd_starttime; /* Time RPC initiated */ 523 fhandle_t nd_fh; /* File handle */ 524 struct ucred nd_cr; /* Credentials */ 525 }; 526 527 /* Bits for "nd_flag" */ 528 #define ND_READ 0x01 529 #define ND_WRITE 0x02 530 #define ND_CHECK 0x04 531 #define ND_NFSV3 0x08 532 #define ND_UNUSED010 0x10 533 #define ND_KERBNICK 0x20 534 #define ND_KERBFULL 0x40 535 #define ND_KERBAUTH (ND_KERBNICK | ND_KERBFULL) 536 537 extern TAILQ_HEAD(nfsd_head, nfsd) nfsd_head; 538 extern int nfsd_head_flag; 539 extern int nfsd_waiting; 540 #define NFSD_CHECKSLP 0x01 541 542 /* 543 * These macros compare nfsrv_descript structures. 544 */ 545 #define NFSW_CONTIG(o, n) \ 546 ((o)->nd_eoff >= (n)->nd_off && \ 547 !bcmp((caddr_t)&(o)->nd_fh, (caddr_t)&(n)->nd_fh, NFSX_V3FH)) 548 549 #define NFSW_SAMECRED(o, n) \ 550 (((o)->nd_flag & ND_KERBAUTH) == ((n)->nd_flag & ND_KERBAUTH) && \ 551 !bcmp((caddr_t)&(o)->nd_cr, (caddr_t)&(n)->nd_cr, \ 552 sizeof (struct ucred))) 553 554 /* 555 * Defines for WebNFS 556 */ 557 558 #define WEBNFS_ESC_CHAR '%' 559 #define WEBNFS_SPECCHAR_START 0x80 560 561 #define WEBNFS_NATIVE_CHAR 0x80 562 /* 563 * .. 564 * Possibly more here in the future. 565 */ 566 567 /* 568 * Macro for converting escape characters in WebNFS pathnames. 569 * Should really be in libkern. 570 */ 571 572 #define HEXTOC(c) \ 573 ((c) >= 'a' ? ((c) - ('a' - 10)) : \ 574 ((c) >= 'A' ? ((c) - ('A' - 10)) : ((c) - '0'))) 575 #define HEXSTRTOI(p) \ 576 ((HEXTOC(p[0]) << 4) + HEXTOC(p[1])) 577 578 #ifdef NFS_DEBUG 579 580 extern int nfs_debug; 581 #define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */ 582 #define NFS_DEBUG_WG 2 /* server write gathering */ 583 #define NFS_DEBUG_RC 4 /* server request caching */ 584 585 #define NFS_DPF(cat, args) \ 586 do { \ 587 if (nfs_debug & NFS_DEBUG_##cat) printf args; \ 588 } while (0) 589 590 #else 591 592 #define NFS_DPF(cat, args) 593 594 #endif 595 596 u_quad_t nfs_curusec (void); 597 int nfs_init (struct vfsconf *vfsp); 598 int nfs_uninit (struct vfsconf *vfsp); 599 int nfs_reply (struct nfsreq *); 600 int nfs_getreq (struct nfsrv_descript *,struct nfsd *,int); 601 int nfs_send (struct socket *, struct sockaddr *, struct mbuf *, 602 struct nfsreq *); 603 int nfs_rephead (int, struct nfsrv_descript *, struct nfssvc_sock *, 604 int, struct mbuf **, struct mbuf **, 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 int nfs_clientd(struct nfsmount *nmp, struct ucred *cred, 741 struct nfsd_cargs *ncd, int flag, caddr_t argp, 742 struct thread *td); 743 744 745 #endif /* _KERNEL */ 746 747 #endif 748