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. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)nfs.h 8.4 (Berkeley) 5/1/95 33 * $FreeBSD: src/sys/nfs/nfs.h,v 1.53.2.5 2002/02/20 01:35:34 iedowse Exp $ 34 */ 35 36 #ifndef _NFS_NFS_H_ 37 #define _NFS_NFS_H_ 38 39 #ifdef _KERNEL 40 #include "opt_nfs.h" 41 #endif 42 43 #include <sys/vnode.h> 44 #include <sys/mutex.h> 45 #include <sys/thread.h> 46 47 /* 48 * Tunable constants for nfs 49 */ 50 51 #define NFS_MAXIOVEC 34 52 #define NFS_TICKINTVL 200 /* Desired time for a tick (msec) */ 53 #define NFS_HZ (hz / nfs_ticks) /* Ticks/sec */ 54 #define NFS_TIMEO (1 * NFS_HZ) /* Default timeout = 1 second */ 55 #define NFS_MINTIMEO (1 * NFS_HZ) /* Min timeout to use */ 56 #define NFS_MAXTIMEO (60 * NFS_HZ) /* Max timeout to backoff to */ 57 #define NFS_MINIDEMTIMEO (5 * NFS_HZ) /* Min timeout for non-idempotent ops*/ 58 #define NFS_MAXREXMIT 100 /* Stop counting after this many */ 59 #define NFS_MAXWINDOW 1024 /* Max number of outstanding requests */ 60 #define NFS_RETRANS 10 /* Num of retrans for soft mounts */ 61 #define NFS_MAXGRPS 16 /* Max. size of groups list */ 62 #ifndef NFS_MINATTRTIMO 63 #define NFS_MINATTRTIMO 3 /* VREG attrib cache timeout in sec */ 64 #endif 65 #ifndef NFS_DEFATTRTIMO 66 #define NFS_DEFATTRTIMO 10 /* VREG attrib cache timeout in sec */ 67 #endif 68 #ifndef NFS_MAXATTRTIMO 69 #define NFS_MAXATTRTIMO 60 70 #endif 71 #ifndef NFS_MINDIRATTRTIMO 72 #define NFS_MINDIRATTRTIMO 30 /* VDIR attrib cache timeout in sec */ 73 #endif 74 #ifndef NFS_MAXDIRATTRTIMO 75 #define NFS_MAXDIRATTRTIMO 60 76 #endif 77 #ifndef NFS_DEADTHRESH 78 #define NFS_DEADTHRESH NFS_NEVERDEAD 79 #endif 80 #define NFS_NEVERDEAD 9 81 #define NFS_WSIZE 8192 /* Def. write data size <= 8192 */ 82 #define NFS_RSIZE 8192 /* Def. read data size <= 8192 */ 83 #define NFS_READDIRSIZE 8192 /* Def. readdir size */ 84 #define NFS_DEFRAHEAD 6 /* Def. read ahead # blocks */ 85 #define NFS_MAXRAHEAD 32 /* Max. read ahead # blocks */ 86 #define NFS_MAXASYNCBIO 64 /* Max. asynchronous BIOs */ 87 #define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */ 88 #define NFS_MAXGATHERDELAY 100 /* Max. write gather delay (msec) */ 89 #ifndef NFS_GATHERDELAY 90 #define NFS_GATHERDELAY 20 /* Default write gather delay (msec) */ 91 #endif 92 #define NFS_DIRBLKSIZ 4096 /* Must be a multiple of DIRBLKSIZ */ 93 #ifdef _KERNEL 94 #define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */ 95 #endif 96 97 #define NFS_ASYSCALE 256 98 #define NFS_MINASYNC_SCALED (4 * NFS_ASYSCALE) 99 #define NFS_MAXASYNC_SCALED (NFS_MAXASYNCBIO * NFS_ASYSCALE) 100 101 /* 102 * Oddballs 103 */ 104 #define NMOD(a) ((a) % nfs_asyncdaemons) 105 #define NFS_CMPFH(n, f, s) \ 106 ((n)->n_fhsize == (s) && !bcmp((caddr_t)(n)->n_fhp, (caddr_t)(f), (s))) 107 #define NFS_ISV3(v) (VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV3) 108 #define NFS_SRVMAXDATA(n) \ 109 (((n)->nd_flag & ND_NFSV3) ? (((n)->nd_nam2) ? \ 110 NFS_MAXDGRAMDATA : NFS_MAXDATA) : NFS_V2MAXDATA) 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 unused01; /* 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_FORCE 0x00000100 /* Forced unmount */ 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_CACHE 0x00001000 /* enable swapcache */ 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_SENDSPACE 0x01000000 /* Printed sendspace warning */ 182 #define NFSSTA_UNUSED25 0x02000000 183 #define NFSSTA_UNUSED26 0x04000000 184 #define NFSSTA_UNUSED27 0x08000000 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_NFSD); 302 MALLOC_DECLARE(M_NFSBIGFH); 303 MALLOC_DECLARE(M_NFSHASH); 304 #endif 305 306 extern struct objcache *nfsmount_objcache; 307 308 extern struct callout nfs_timer_handle; 309 extern int nfs_async; 310 extern int nfs_maxasyncbio; 311 extern int nfs_soreserve; 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 struct nfsm_info; 341 342 /* 343 * Nfs outstanding request list element 344 */ 345 struct nfsreq { 346 TAILQ_ENTRY(nfsreq) r_chain; 347 struct nfsm_info *r_info; 348 mtx_link_t r_link; 349 struct mbuf *r_mreq; 350 struct mbuf *r_mrep; 351 struct mbuf *r_md; 352 caddr_t r_dpos; 353 struct nfsmount *r_nmp; 354 struct vnode *r_vp; 355 u_int32_t r_xid; 356 int r_flags; /* flags on request, see below */ 357 int r_retry; /* max retransmission count */ 358 int r_rexmit; /* current retrans count */ 359 int r_timer; /* tick counter on reply */ 360 u_int32_t r_procnum; /* NFS procedure number */ 361 int r_rtt; /* RTT for rpc */ 362 struct thread *r_td; /* Thread that did I/O system call */ 363 struct mbuf *r_mrest; 364 struct mbuf *r_mheadend; 365 struct mbuf **r_mrp; 366 struct mbuf **r_mdp; 367 caddr_t *r_dposp; 368 int r_mrest_len; 369 int r_failed_auth; 370 NFSKERBKEY_T r_key; 371 struct ucred *r_cred; 372 }; 373 374 /* 375 * Flag values for r_flags 376 * 377 * R_TIMING - Timer is active on request. If timer goes off the 378 * request's retransmit counter will bump and it will 379 * be flagged NEEDSXMIT to retransmit. 380 * 381 * R_SENT - Indicates that the request was sent the first time. 382 * This stays set unless we want to repeat a first-time 383 * styled transmit sequence. 384 * 385 * R_NEEDSXMIT - The request needs a [re]transmission. It will still 386 * be sitting on nm_reqq if synchronous, otherwise it 387 * will be moved to nm_reqtxq. 388 * 389 * R_ASYNC - Indicates an asynchronous request, which modifies the 390 * behavior of how it is dealt with. 391 * 392 * R_LOCKED - Prevents the request from being moved between queues 393 * e.g. by the timer or by the async thread. 394 */ 395 #define R_TIMING 0x0001 /* timing request (in mntp) */ 396 #define R_SENT 0x0002 /* request has been sent */ 397 #define R_SOFTTERM 0x0004 /* soft mnt, too many retries */ 398 #define R_INTR 0x0008 /* intr mnt, signal pending */ 399 #define R_SOCKERR 0x0010 /* Fatal error on socket */ 400 #define R_TPRINTFMSG 0x0020 /* Did a tprintf msg. */ 401 #define R_NEEDSXMIT 0x0040 /* Needs [re]transmission */ 402 #define R_ASYNC 0x0080 /* Asynchronous mechanics */ 403 #define R_ONREQQ 0x0100 /* On primary request queue */ 404 #define R_LOCKED 0x0200 /* Locked by the someone */ 405 #define R_WANTED 0x0400 /* Someone wants access */ 406 407 /* 408 * A list of nfssvc_sock structures is maintained with all the sockets 409 * that require service by the nfsd. 410 * The nfsuid structs hang off of the nfssvc_sock structs in both lru 411 * and uid hash lists. 412 */ 413 #ifndef NFS_UIDHASHSIZ 414 #define NFS_UIDHASHSIZ 29 /* Tune the size of nfssvc_sock with this */ 415 #endif 416 #define NUIDHASH(sock, uid) \ 417 (&(sock)->ns_uidhashtbl[(uid) % NFS_UIDHASHSIZ]) 418 #ifndef NFS_WDELAYHASHSIZ 419 #define NFS_WDELAYHASHSIZ 16 /* and with this */ 420 #endif 421 #define NWDELAYHASH(sock, f) \ 422 (&(sock)->ns_wdelayhashtbl[(*((u_int32_t *)(f))) % NFS_WDELAYHASHSIZ]) 423 #ifndef NFS_MUIDHASHSIZ 424 #define NFS_MUIDHASHSIZ 63 /* Tune the size of nfsmount with this */ 425 #endif 426 #define NMUIDHASH(nmp, uid) \ 427 (&(nmp)->nm_uidhashtbl[(uid) % NFS_MUIDHASHSIZ]) 428 429 /* 430 * Network address hash list element 431 */ 432 union nethostaddr { 433 u_int32_t had_inetaddr; 434 struct sockaddr *had_nam; 435 }; 436 437 struct nfsuid { 438 TAILQ_ENTRY(nfsuid) nu_lru; /* LRU chain */ 439 LIST_ENTRY(nfsuid) nu_hash; /* Hash list */ 440 int nu_flag; /* Flags */ 441 union nethostaddr nu_haddr; /* Host addr. for dgram sockets */ 442 struct ucred nu_cr; /* Cred uid mapped to */ 443 time_t nu_expire; /* Expiry time (time_uptime) */ 444 struct timeval nu_timestamp; /* Kerb. timestamp */ 445 u_int32_t nu_nickname; /* Nickname on server */ 446 NFSKERBKEY_T nu_key; /* and session key */ 447 }; 448 449 #define nu_inetaddr nu_haddr.had_inetaddr 450 #define nu_nam nu_haddr.had_nam 451 /* Bits for nu_flag */ 452 #define NU_INETADDR 0x1 453 #define NU_NAM 0x2 454 455 struct nfsrv_rec { 456 STAILQ_ENTRY(nfsrv_rec) nr_link; 457 struct sockaddr *nr_address; 458 struct mbuf *nr_packet; 459 }; 460 461 struct nfssvc_sock { 462 TAILQ_ENTRY(nfssvc_sock) ns_chain; /* List of all nfssvc_sock's */ 463 TAILQ_HEAD(, nfsuid) ns_uidlruhead; 464 struct file *ns_fp; 465 struct socket *ns_so; 466 struct sockaddr *ns_nam; 467 struct mbuf *ns_raw; 468 struct mbuf *ns_rawend; 469 STAILQ_HEAD(, nfsrv_rec) ns_rec; 470 struct mbuf *ns_frag; 471 int ns_numrec; 472 u_int32_t ns_flag; 473 u_int32_t ns_needq_upcall; 474 struct mtx ns_solock; 475 int ns_cc; 476 int ns_reclen; 477 int ns_numuids; 478 u_int32_t ns_sref; 479 LIST_HEAD(, nfsrv_descript) ns_tq; /* Write gather lists */ 480 LIST_HEAD(, nfsuid) ns_uidhashtbl[NFS_UIDHASHSIZ]; 481 LIST_HEAD(nfsrvw_delayhash, nfsrv_descript) ns_wdelayhashtbl[NFS_WDELAYHASHSIZ]; 482 struct lwkt_token ns_token; 483 }; 484 485 /* Bits for "ns_flag" */ 486 #define SLP_VALID 0x0001 487 #define SLP_DOREC 0x0002 /* socket holding at least one record */ 488 #define SLP_NEEDQ 0x0004 /* socket needs general rx processing */ 489 #define SLP_DISCONN 0x0008 490 #define SLP_GETSTREAM 0x0010 /* receive stream interlock */ 491 #define SLP_LASTFRAG 0x0020 492 493 #define SLP_ALLFLAGS 0xff 494 #define SLP_ACTION_MASK (SLP_NEEDQ | SLP_DOREC | SLP_DISCONN) 495 496 extern TAILQ_HEAD(nfssvc_sockhead, nfssvc_sock) nfssvc_sockhead; 497 extern int nfssvc_sockhead_flag; 498 extern TAILQ_HEAD(nfsmount_head, nfsmount) nfs_mountq; 499 500 #define SLP_INIT 0x01 501 #define SLP_WANTINIT 0x02 502 503 /* 504 * One of these structures is allocated for each nfsd. 505 */ 506 struct nfsd { 507 TAILQ_ENTRY(nfsd) nfsd_chain; /* List of all nfsd's */ 508 int nfsd_flag; /* NFSD_ flags */ 509 struct nfssvc_sock *nfsd_slp; /* Current socket */ 510 int nfsd_authlen; /* Authenticator len */ 511 u_char nfsd_authstr[RPCAUTH_MAXSIZ]; /* Authenticator data */ 512 int nfsd_verflen; /* and the Verifier */ 513 u_char nfsd_verfstr[RPCVERF_MAXSIZ]; 514 struct thread *nfsd_td; /* thread ptr */ 515 struct nfsrv_descript *nfsd_nd; /* Associated nfsrv_descript */ 516 }; 517 518 /* Bits for "nfsd_flag" */ 519 #define NFSD_WAITING 0x01 520 #define NFSD_REQINPROG 0x02 521 #define NFSD_NEEDAUTH 0x04 522 #define NFSD_AUTHFAIL 0x08 523 524 /* Bits for loadattrcache */ 525 #define NFS_LATTR_NOSHRINK 0x01 526 #define NFS_LATTR_NOMTIMECHECK 0x02 527 528 #define NFSRV_RECLIMIT(slp) ((slp)->ns_numrec >= nfsd_waiting + 4) 529 530 /* 531 * This structure is used by the server for describing each request. 532 * Some fields are used only when write request gathering is performed. 533 */ 534 struct nfsrv_descript { 535 u_quad_t nd_time; /* Write deadline (usec) */ 536 off_t nd_off; /* Start byte offset */ 537 off_t nd_eoff; /* and end byte offset */ 538 LIST_ENTRY(nfsrv_descript) nd_hash; /* Hash list */ 539 LIST_ENTRY(nfsrv_descript) nd_tq; /* and timer list */ 540 LIST_HEAD(,nfsrv_descript) nd_coalesce; /* coalesced writes */ 541 struct mbuf *nd_mrep; /* Request mbuf list */ 542 struct mbuf *nd_md; /* Current dissect mbuf */ 543 struct mbuf *nd_mreq; /* Reply mbuf list */ 544 struct sockaddr *nd_nam; /* and socket addr */ 545 struct sockaddr *nd_nam2; /* return socket addr */ 546 caddr_t nd_dpos; /* Current dissect pos */ 547 u_int32_t nd_procnum; /* RPC # */ 548 int nd_stable; /* storage type */ 549 int nd_flag; /* nd_flag */ 550 int nd_len; /* Length of this write */ 551 int nd_repstat; /* Reply status */ 552 u_int32_t nd_retxid; /* Reply xid */ 553 struct timeval nd_starttime; /* Time RPC initiated */ 554 fhandle_t nd_fh; /* File handle */ 555 struct ucred nd_cr; /* Credentials */ 556 }; 557 558 /* Bits for "nd_flag" */ 559 #define ND_READ 0x01 560 #define ND_WRITE 0x02 561 #define ND_CHECK 0x04 562 #define ND_NFSV3 0x08 563 #define ND_UNUSED010 0x10 564 #define ND_KERBNICK 0x20 565 #define ND_KERBFULL 0x40 566 #define ND_KERBAUTH (ND_KERBNICK | ND_KERBFULL) 567 568 extern TAILQ_HEAD(nfsd_head, nfsd) nfsd_head; 569 extern int nfsd_head_flag; 570 extern int nfsd_waiting; 571 #define NFSD_CHECKSLP 0x01 572 573 /* 574 * These macros compare nfsrv_descript structures. 575 */ 576 #define NFSW_CONTIG(o, n) \ 577 ((o)->nd_eoff >= (n)->nd_off && \ 578 !bcmp((caddr_t)&(o)->nd_fh, (caddr_t)&(n)->nd_fh, NFSX_V3FH)) 579 580 #define NFSW_SAMECRED(o, n) \ 581 (((o)->nd_flag & ND_KERBAUTH) == ((n)->nd_flag & ND_KERBAUTH) && \ 582 !bcmp((caddr_t)&(o)->nd_cr, (caddr_t)&(n)->nd_cr, \ 583 sizeof (struct ucred))) 584 585 /* 586 * Defines for WebNFS 587 */ 588 589 #define WEBNFS_ESC_CHAR '%' 590 #define WEBNFS_SPECCHAR_START 0x80 591 592 #define WEBNFS_NATIVE_CHAR 0x80 593 /* 594 * .. 595 * Possibly more here in the future. 596 */ 597 598 /* 599 * Macro for converting escape characters in WebNFS pathnames. 600 * Should really be in libkern. 601 */ 602 603 #define HEXTOC(c) \ 604 ((c) >= 'a' ? ((c) - ('a' - 10)) : \ 605 ((c) >= 'A' ? ((c) - ('A' - 10)) : ((c) - '0'))) 606 #define HEXSTRTOI(p) \ 607 ((HEXTOC(p[0]) << 4) + HEXTOC(p[1])) 608 609 #ifdef NFS_DEBUG 610 611 extern int nfs_debug; 612 #define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */ 613 #define NFS_DEBUG_WG 2 /* server write gathering */ 614 #define NFS_DEBUG_RC 4 /* server request caching */ 615 616 #define NFS_DPF(cat, args) \ 617 do { \ 618 if (nfs_debug & NFS_DEBUG_##cat) kprintf args; \ 619 } while (0) 620 621 #else 622 623 #define NFS_DPF(cat, args) 624 625 #endif 626 627 extern u_int32_t nfs_xdrneg1; 628 extern u_int32_t rpc_reply, rpc_msgdenied, rpc_mismatch, rpc_vers; 629 extern u_int32_t rpc_auth_unix, rpc_msgaccepted, rpc_call, rpc_autherr; 630 extern u_int32_t rpc_auth_kerb; 631 extern u_int32_t nfs_prog, nfs_true, nfs_false; 632 extern struct nfsstats nfsstats; 633 extern nfstype nfsv2_type[9]; 634 extern nfstype nfsv3_type[9]; 635 extern int nfsv2_procid[NFS_NPROCS]; 636 extern enum vtype nv3tov_type[8]; 637 extern int nfsv3_procid[NFS_NPROCS]; 638 extern int nfs_ticks; 639 extern struct nfsrtt nfsrtt; 640 extern int nfsrtton; 641 extern int nfsrvw_procrastinate; 642 extern int nfsrvw_procrastinate_v3; 643 extern int32_t (*nfsrv3_procs[NFS_NPROCS]) (struct nfsrv_descript *nd, 644 struct nfssvc_sock *slp, 645 struct thread *td, 646 struct mbuf **mreqp); 647 648 extern struct nfsv3_diskless nfsv3_diskless; 649 extern struct lwkt_token nfs_token; 650 651 u_quad_t nfs_curusec (void); 652 int nfs_init (struct vfsconf *vfsp); 653 int nfs_uninit (struct vfsconf *vfsp); 654 int nfs_reply (struct nfsmount *nmp, struct nfsreq *); 655 int nfs_getreq (struct nfsrv_descript *,struct nfsd *,int); 656 int nfs_send (struct socket *, struct sockaddr *, struct mbuf *, 657 struct nfsreq *); 658 int nfs_rephead (int, struct nfsrv_descript *, struct nfssvc_sock *, 659 int, struct mbuf **, struct mbuf **, caddr_t *); 660 int nfs_sndlock (struct nfsmount *, struct nfsreq *); 661 void nfs_sndunlock (struct nfsmount *); 662 int nfs_slplock (struct nfssvc_sock *, int); 663 void nfs_slpunlock (struct nfssvc_sock *); 664 int nfs_disct (struct mbuf **, caddr_t *, int, int, caddr_t *); 665 int nfs_vinvalbuf (struct vnode *, int, int); 666 int nfs_readrpc_uio (struct vnode *, struct uio *); 667 void nfs_readrpc_bio (struct vnode *, struct bio *); 668 int nfs_writerpc_uio (struct vnode *, struct uio *, int *, int *); 669 void nfs_writerpc_bio (struct vnode *, struct bio *); 670 int nfs_commitrpc_uio (struct vnode *vp, u_quad_t offset, int cnt, 671 struct thread *td); 672 void nfs_commitrpc_bio (struct vnode *vp, struct bio *); 673 int nfs_readdirrpc_uio (struct vnode *, struct uio *); 674 void nfs_startio(struct vnode *vp, struct bio *, struct thread *); 675 int nfs_doio(struct vnode *vp, struct bio *, struct thread *); 676 void nfs_asyncio(struct vnode *vp, struct bio *bio); 677 int nfs_asyncok(struct nfsmount *nmp); 678 679 int nfs_readlinkrpc_uio (struct vnode *, struct uio *); 680 int nfs_sigintr (struct nfsmount *, struct nfsreq *, struct thread *); 681 int nfs_readdirplusrpc_uio (struct vnode *, struct uio *); 682 int netaddr_match (int, union nethostaddr *, struct sockaddr *); 683 684 int nfs_loadattrcache (struct vnode *, struct mbuf **, caddr_t *, 685 struct vattr *, int); 686 int nfs_namei (struct nlookupdata *, struct ucred *, int, 687 struct vnode **, struct vnode **, fhandle_t *, int, 688 struct nfssvc_sock *, struct sockaddr *, struct mbuf **, 689 caddr_t *, struct vnode **, struct thread *, int, int); 690 void nfsrv_initcache (void); 691 int nfs_getauth (struct nfsmount *, struct nfsreq *, struct ucred *, 692 char **, int *, char *, int *, NFSKERBKEY_T); 693 int nfs_getnickauth (struct nfsmount *, struct ucred *, char **, 694 int *, char *, int); 695 int nfs_savenickauth (struct nfsmount *, struct ucred *, int, 696 NFSKERBKEY_T, struct mbuf **, char **, 697 struct mbuf *); 698 int nfs_adv (struct mbuf **, caddr_t *, int, int); 699 void nfs_nhinit (void); 700 int nfs_nmcancelreqs (struct nfsmount *); 701 void nfs_timer_callout (void*); 702 int nfsrv_dorec (struct nfssvc_sock *, struct nfsd *, 703 struct nfsrv_descript **); 704 int nfsrv_getcache (struct nfsrv_descript *, struct nfssvc_sock *, 705 struct mbuf **); 706 void nfsrv_updatecache (struct nfsrv_descript *, int, struct mbuf *); 707 void nfsrv_cleancache (void); 708 int nfs_connect (struct nfsmount *, struct nfsreq *); 709 void nfs_disconnect (struct nfsmount *); 710 void nfs_safedisconnect (struct nfsmount *); 711 int nfs_getattrcache (struct vnode *, struct vattr *); 712 int nfs_bioread (struct vnode *, struct uio *, int); 713 void nfsrv_init (int); 714 void nfs_clearcommit (struct mount *); 715 int nfsrv_errmap (struct nfsrv_descript *, int); 716 void nfsrvw_sort (gid_t *, int); 717 void nfsrv_setcred (struct ucred *, struct ucred *); 718 int nfsrv_object_create (struct vnode *); 719 void nfsrv_wakenfsd (struct nfssvc_sock *slp, int nparallel); 720 int nfsrv_writegather (struct nfsrv_descript **, struct nfssvc_sock *, 721 struct thread *, struct mbuf **); 722 int nfs_fsinfo (struct nfsmount *, struct vnode *, struct thread *p); 723 724 int nfsrv3_access (struct nfsrv_descript *nfsd, 725 struct nfssvc_sock *slp, 726 struct thread *td, struct mbuf **mrq); 727 int nfsrv_commit (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 728 struct thread *td, struct mbuf **mrq); 729 int nfsrv_create (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 730 struct thread *td, struct mbuf **mrq); 731 int nfsrv_fhtovp (fhandle_t *, int, struct mount **, struct vnode **, 732 struct ucred *, struct nfssvc_sock *, 733 struct sockaddr *, int *, int, int); 734 int nfsrv_setpublicfs (struct mount *, struct netexport *, 735 struct export_args *); 736 int nfs_ispublicfh (fhandle_t *); 737 int nfsrv_fsinfo (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 738 struct thread *td, struct mbuf **mrq); 739 int nfsrv_getattr (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 740 struct thread *td, struct mbuf **mrq); 741 int nfsrv_link (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 742 struct thread *td, struct mbuf **mrq); 743 int nfsrv_lookup (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 744 struct thread *td, struct mbuf **mrq); 745 int nfsrv_mkdir (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 746 struct thread *td, struct mbuf **mrq); 747 int nfsrv_mknod (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 748 struct thread *td, struct mbuf **mrq); 749 int nfsrv_noop (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 750 struct thread *td, struct mbuf **mrq); 751 int nfsrv_null (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 752 struct thread *td, struct mbuf **mrq); 753 int nfsrv_pathconf (struct nfsrv_descript *nfsd, 754 struct nfssvc_sock *slp, struct thread *td, 755 struct mbuf **mrq); 756 int nfsrv_read (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 757 struct thread *td, struct mbuf **mrq); 758 int nfsrv_readdir (struct nfsrv_descript *nfsd, 759 struct nfssvc_sock *slp, 760 struct thread *td, struct mbuf **mrq); 761 int nfsrv_readdirplus (struct nfsrv_descript *nfsd, 762 struct nfssvc_sock *slp, struct thread *td, 763 struct mbuf **mrq); 764 int nfsrv_readlink (struct nfsrv_descript *nfsd, 765 struct nfssvc_sock *slp, struct thread *td, 766 struct mbuf **mrq); 767 int nfsrv_remove (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 768 struct thread *td, struct mbuf **mrq); 769 int nfsrv_rename (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 770 struct thread *td, struct mbuf **mrq); 771 int nfsrv_rmdir (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 772 struct thread *td, struct mbuf **mrq); 773 int nfsrv_setattr (struct nfsrv_descript *nfsd, 774 struct nfssvc_sock *slp, 775 struct thread *td, struct mbuf **mrq); 776 int nfsrv_statfs (struct nfsrv_descript *nfsd, 777 struct nfssvc_sock *slp, 778 struct thread *td, struct mbuf **mrq); 779 int nfsrv_symlink (struct nfsrv_descript *nfsd, 780 struct nfssvc_sock *slp, 781 struct thread *td, struct mbuf **mrq); 782 int nfsrv_write (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 783 struct thread *td, struct mbuf **mrq); 784 void nfsrv_rcv (struct socket *so, void *arg, int waitflag); 785 void nfsrv_rcv_upcall (struct socket *so, void *arg, int waitflag); 786 void nfsrv_slpderef (struct nfssvc_sock *slp); 787 void nfsrv_slpref (struct nfssvc_sock *slp); 788 int nfs_meta_setsize (struct vnode *vp, struct thread *td, 789 off_t nbase, int trivial); 790 int nfs_clientd(struct nfsmount *nmp, struct ucred *cred, 791 struct nfsd_cargs *ncd, int flag, caddr_t argp, 792 struct thread *td); 793 void nfssvc_iod_reader(void *arg); 794 void nfssvc_iod_writer(void *arg); 795 void nfssvc_iod_stop1(struct nfsmount *nmp); 796 void nfssvc_iod_stop2(struct nfsmount *nmp); 797 void nfssvc_iod_writer_wakeup(struct nfsmount *nmp); 798 void nfssvc_iod_reader_wakeup(struct nfsmount *nmp); 799 800 #endif /* _KERNEL */ 801 802 #endif 803