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 #define NFSMNT_RETRYCNT 0x00400000 /* Set retry count */ 175 176 #define NFSSTA_HASWRITEVERF 0x00040000 /* Has write verifier for V3 */ 177 #define NFSSTA_GOTPATHCONF 0x00080000 /* Got the V3 pathconf info */ 178 #define NFSSTA_GOTFSINFO 0x00100000 /* Got the V3 fsinfo */ 179 #define NFSSTA_MNTD 0x00200000 /* Mnt server for mnt point */ 180 #define NFSSTA_DISMINPROG 0x00400000 /* Dismount in progress */ 181 #define NFSSTA_DISMNT 0x00800000 /* Dismounted */ 182 #define NFSSTA_SENDSPACE 0x01000000 /* Printed sendspace warning */ 183 #define NFSSTA_UNUSED25 0x02000000 184 #define NFSSTA_UNUSED26 0x04000000 185 #define NFSSTA_UNUSED27 0x08000000 186 #define NFSSTA_WAITAUTH 0x10000000 /* Wait for authentication */ 187 #define NFSSTA_HASAUTH 0x20000000 /* Has authenticator */ 188 #define NFSSTA_WANTAUTH 0x40000000 /* Wants an authenticator */ 189 #define NFSSTA_AUTHERR 0x80000000 /* Authentication error */ 190 191 /* 192 * Structures for the nfssvc(2) syscall. Not that anyone but nfsd and mount_nfs 193 * should ever try and use it. 194 */ 195 struct nfsd_args { 196 int sock; /* Socket to serve */ 197 caddr_t name; /* Client addr for connection based sockets */ 198 int namelen; /* Length of name */ 199 }; 200 201 struct nfsd_srvargs { 202 struct nfsd *nsd_nfsd; /* Pointer to in kernel nfsd struct */ 203 uid_t nsd_uid; /* Effective uid mapped to cred */ 204 u_int32_t nsd_haddr; /* Ip address of client */ 205 struct ucred nsd_cr; /* Cred. uid maps to */ 206 u_int nsd_authlen; /* Length of auth string (ret) */ 207 u_char *nsd_authstr; /* Auth string (ret) */ 208 u_int nsd_verflen; /* and the verfier */ 209 u_char *nsd_verfstr; 210 struct timeval nsd_timestamp; /* timestamp from verifier */ 211 u_int32_t nsd_ttl; /* credential ttl (sec) */ 212 NFSKERBKEY_T nsd_key; /* Session key */ 213 }; 214 215 struct nfsd_cargs { 216 char *ncd_dirp; /* Mount dir path */ 217 uid_t ncd_authuid; /* Effective uid */ 218 int ncd_authtype; /* Type of authenticator */ 219 u_int ncd_authlen; /* Length of authenticator string */ 220 u_char *ncd_authstr; /* Authenticator string */ 221 u_int ncd_verflen; /* and the verifier */ 222 u_char *ncd_verfstr; 223 NFSKERBKEY_T ncd_key; /* Session key */ 224 }; 225 226 /* 227 * XXX to allow amd to include nfs.h without nfsproto.h 228 */ 229 #ifdef NFS_NPROCS 230 /* 231 * Stats structure 232 */ 233 struct nfsstats { 234 int attrcache_hits; 235 int attrcache_misses; 236 int lookupcache_hits; 237 int lookupcache_misses; 238 int direofcache_hits; 239 int direofcache_misses; 240 int biocache_reads; 241 int read_bios; 242 int read_physios; 243 int biocache_writes; 244 int write_bios; 245 int write_physios; 246 int biocache_readlinks; 247 int readlink_bios; 248 int biocache_readdirs; 249 int readdir_bios; 250 int rpccnt[NFS_NPROCS]; 251 int rpcretries; 252 int srvrpccnt[NFS_NPROCS]; 253 int srvrpc_errs; 254 int srv_errs; 255 int rpcrequests; 256 int rpctimeouts; 257 int rpcunexpected; 258 int rpcinvalid; 259 int srvcache_inproghits; 260 int srvcache_idemdonehits; 261 int srvcache_nonidemdonehits; 262 int srvcache_misses; 263 int srvnqnfs_leases; 264 int srvnqnfs_maxleases; 265 int srvnqnfs_getleases; 266 int srvvop_writes; 267 int accesscache_hits; 268 int accesscache_misses; 269 }; 270 #endif 271 272 /* 273 * Flags for nfssvc() system call. 274 */ 275 #define NFSSVC_BIOD 0x002 276 #define NFSSVC_NFSD 0x004 277 #define NFSSVC_ADDSOCK 0x008 278 #define NFSSVC_AUTHIN 0x010 279 #define NFSSVC_GOTAUTH 0x040 280 #define NFSSVC_AUTHINFAIL 0x080 281 #define NFSSVC_MNTD 0x100 282 283 /* 284 * fs.nfs sysctl(3) identifiers 285 */ 286 #define NFS_NFSSTATS 1 /* struct: struct nfsstats */ 287 #define NFS_NFSPRIVPORT 2 /* int: prohibit nfs to resvports */ 288 289 #define FS_NFS_NAMES { \ 290 { 0, 0 }, \ 291 { "nfsstats", CTLTYPE_STRUCT }, \ 292 { "nfsprivport", CTLTYPE_INT }, \ 293 } 294 295 #ifdef _KERNEL 296 297 #ifdef MALLOC_DECLARE 298 MALLOC_DECLARE(M_NFSREQ); 299 MALLOC_DECLARE(M_NFSDIROFF); 300 MALLOC_DECLARE(M_NFSRVDESC); 301 MALLOC_DECLARE(M_NFSUID); 302 MALLOC_DECLARE(M_NFSD); 303 MALLOC_DECLARE(M_NFSBIGFH); 304 MALLOC_DECLARE(M_NFSHASH); 305 #endif 306 307 extern struct objcache *nfsmount_objcache; 308 309 extern struct callout nfs_timer_handle; 310 extern int nfs_async; 311 extern int nfs_maxasyncbio; 312 extern int nfs_soreserve; 313 314 struct uio; 315 struct buf; 316 struct bio; 317 struct vattr; 318 struct nlookupdata; 319 320 /* 321 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts. 322 * What should be in this set is open to debate, but I believe that since 323 * I/O system calls on ufs are never interrupted by signals the set should 324 * be minimal. My reasoning is that many current programs that use signals 325 * such as SIGALRM will not expect file I/O system calls to be interrupted 326 * by them and break. 327 */ 328 #define NFSINT_SIGMASK(set) \ 329 (SIGISMEMBER(set, SIGINT) || SIGISMEMBER(set, SIGTERM) || \ 330 SIGISMEMBER(set, SIGHUP) || SIGISMEMBER(set, SIGKILL) || \ 331 SIGISMEMBER(set, SIGQUIT)) 332 333 /* 334 * Socket errors ignored for connectionless sockets?? 335 * For now, ignore them all 336 */ 337 #define NFSIGNORE_SOERROR(s, e) \ 338 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \ 339 ((s) & PR_CONNREQUIRED) == 0) 340 341 struct nfsm_info; 342 343 /* 344 * Nfs outstanding request list element 345 */ 346 struct nfsreq { 347 TAILQ_ENTRY(nfsreq) r_chain; 348 struct nfsm_info *r_info; 349 mtx_link_t r_link; 350 struct mbuf *r_mreq; 351 struct mbuf *r_mrep; 352 struct mbuf *r_md; 353 caddr_t r_dpos; 354 struct nfsmount *r_nmp; 355 struct vnode *r_vp; 356 u_int32_t r_xid; 357 int r_flags; /* flags on request, see below */ 358 int r_retry; /* max retransmission count */ 359 int r_rexmit; /* current retrans count */ 360 int r_timer; /* tick counter on reply */ 361 u_int32_t r_procnum; /* NFS procedure number */ 362 int r_rtt; /* RTT for rpc */ 363 struct thread *r_td; /* Thread that did I/O system call */ 364 struct mbuf *r_mrest; 365 struct mbuf *r_mheadend; 366 struct mbuf **r_mrp; 367 struct mbuf **r_mdp; 368 caddr_t *r_dposp; 369 int r_mrest_len; 370 int r_failed_auth; 371 NFSKERBKEY_T r_key; 372 struct ucred *r_cred; 373 }; 374 375 /* 376 * Flag values for r_flags 377 * 378 * R_TIMING - Timer is active on request. If timer goes off the 379 * request's retransmit counter will bump and it will 380 * be flagged NEEDSXMIT to retransmit. 381 * 382 * R_SENT - Indicates that the request was sent the first time. 383 * This stays set unless we want to repeat a first-time 384 * styled transmit sequence. 385 * 386 * R_NEEDSXMIT - The request needs a [re]transmission. It will still 387 * be sitting on nm_reqq if synchronous, otherwise it 388 * will be moved to nm_reqtxq. 389 * 390 * R_ASYNC - Indicates an asynchronous request, which modifies the 391 * behavior of how it is dealt with. 392 * 393 * R_LOCKED - Prevents the request from being moved between queues 394 * e.g. by the timer or by the async thread. 395 */ 396 #define R_TIMING 0x0001 /* timing request (in mntp) */ 397 #define R_SENT 0x0002 /* request has been sent */ 398 #define R_SOFTTERM 0x0004 /* soft mnt, too many retries */ 399 #define R_INTR 0x0008 /* intr mnt, signal pending */ 400 #define R_SOCKERR 0x0010 /* Fatal error on socket */ 401 #define R_TPRINTFMSG 0x0020 /* Did a tprintf msg. */ 402 #define R_NEEDSXMIT 0x0040 /* Needs [re]transmission */ 403 #define R_ASYNC 0x0080 /* Asynchronous mechanics */ 404 #define R_ONREQQ 0x0100 /* On primary request queue */ 405 #define R_LOCKED 0x0200 /* Locked by the someone */ 406 #define R_WANTED 0x0400 /* Someone wants access */ 407 408 /* 409 * A list of nfssvc_sock structures is maintained with all the sockets 410 * that require service by the nfsd. 411 * The nfsuid structs hang off of the nfssvc_sock structs in both lru 412 * and uid hash lists. 413 */ 414 #ifndef NFS_UIDHASHSIZ 415 #define NFS_UIDHASHSIZ 29 /* Tune the size of nfssvc_sock with this */ 416 #endif 417 #define NUIDHASH(sock, uid) \ 418 (&(sock)->ns_uidhashtbl[(uid) % NFS_UIDHASHSIZ]) 419 #ifndef NFS_WDELAYHASHSIZ 420 #define NFS_WDELAYHASHSIZ 16 /* and with this */ 421 #endif 422 #define NWDELAYHASH(sock, f) \ 423 (&(sock)->ns_wdelayhashtbl[(*((u_int32_t *)(f))) % NFS_WDELAYHASHSIZ]) 424 #ifndef NFS_MUIDHASHSIZ 425 #define NFS_MUIDHASHSIZ 63 /* Tune the size of nfsmount with this */ 426 #endif 427 #define NMUIDHASH(nmp, uid) \ 428 (&(nmp)->nm_uidhashtbl[(uid) % NFS_MUIDHASHSIZ]) 429 430 /* 431 * Network address hash list element 432 */ 433 union nethostaddr { 434 u_int32_t had_inetaddr; 435 struct sockaddr *had_nam; 436 }; 437 438 struct nfsuid { 439 TAILQ_ENTRY(nfsuid) nu_lru; /* LRU chain */ 440 LIST_ENTRY(nfsuid) nu_hash; /* Hash list */ 441 int nu_flag; /* Flags */ 442 union nethostaddr nu_haddr; /* Host addr. for dgram sockets */ 443 struct ucred nu_cr; /* Cred uid mapped to */ 444 time_t nu_expire; /* Expiry time (time_uptime) */ 445 struct timeval nu_timestamp; /* Kerb. timestamp */ 446 u_int32_t nu_nickname; /* Nickname on server */ 447 NFSKERBKEY_T nu_key; /* and session key */ 448 }; 449 450 #define nu_inetaddr nu_haddr.had_inetaddr 451 #define nu_nam nu_haddr.had_nam 452 /* Bits for nu_flag */ 453 #define NU_INETADDR 0x1 454 #define NU_NAM 0x2 455 456 struct nfsrv_rec { 457 STAILQ_ENTRY(nfsrv_rec) nr_link; 458 struct sockaddr *nr_address; 459 struct mbuf *nr_packet; 460 }; 461 462 struct nfssvc_sock { 463 TAILQ_ENTRY(nfssvc_sock) ns_chain; /* List of all nfssvc_sock's */ 464 TAILQ_HEAD(, nfsuid) ns_uidlruhead; 465 struct file *ns_fp; 466 struct socket *ns_so; 467 struct sockaddr *ns_nam; 468 struct mbuf *ns_raw; 469 struct mbuf *ns_rawend; 470 STAILQ_HEAD(, nfsrv_rec) ns_rec; 471 struct mbuf *ns_frag; 472 int ns_numrec; 473 u_int32_t ns_flag; 474 u_int32_t ns_needq_upcall; 475 struct mtx ns_solock; 476 int ns_cc; 477 int ns_reclen; 478 int ns_numuids; 479 u_int32_t ns_sref; 480 LIST_HEAD(, nfsrv_descript) ns_tq; /* Write gather lists */ 481 LIST_HEAD(, nfsuid) ns_uidhashtbl[NFS_UIDHASHSIZ]; 482 LIST_HEAD(nfsrvw_delayhash, nfsrv_descript) ns_wdelayhashtbl[NFS_WDELAYHASHSIZ]; 483 struct lwkt_token ns_token; 484 }; 485 486 /* Bits for "ns_flag" */ 487 #define SLP_VALID 0x0001 488 #define SLP_DOREC 0x0002 /* socket holding at least one record */ 489 #define SLP_NEEDQ 0x0004 /* socket needs general rx processing */ 490 #define SLP_DISCONN 0x0008 491 #define SLP_GETSTREAM 0x0010 /* receive stream interlock */ 492 #define SLP_LASTFRAG 0x0020 493 494 #define SLP_ALLFLAGS 0xff 495 #define SLP_ACTION_MASK (SLP_NEEDQ | SLP_DOREC | SLP_DISCONN) 496 497 extern TAILQ_HEAD(nfssvc_sockhead, nfssvc_sock) nfssvc_sockhead; 498 extern int nfssvc_sockhead_flag; 499 extern TAILQ_HEAD(nfsmount_head, nfsmount) nfs_mountq; 500 501 #define SLP_INIT 0x01 502 #define SLP_WANTINIT 0x02 503 504 /* 505 * One of these structures is allocated for each nfsd. 506 */ 507 struct nfsd { 508 TAILQ_ENTRY(nfsd) nfsd_chain; /* List of all nfsd's */ 509 int nfsd_flag; /* NFSD_ flags */ 510 struct nfssvc_sock *nfsd_slp; /* Current socket */ 511 int nfsd_authlen; /* Authenticator len */ 512 u_char nfsd_authstr[RPCAUTH_MAXSIZ]; /* Authenticator data */ 513 int nfsd_verflen; /* and the Verifier */ 514 u_char nfsd_verfstr[RPCVERF_MAXSIZ]; 515 struct thread *nfsd_td; /* thread ptr */ 516 struct nfsrv_descript *nfsd_nd; /* Associated nfsrv_descript */ 517 }; 518 519 /* Bits for "nfsd_flag" */ 520 #define NFSD_WAITING 0x01 521 #define NFSD_REQINPROG 0x02 522 #define NFSD_NEEDAUTH 0x04 523 #define NFSD_AUTHFAIL 0x08 524 525 /* Bits for loadattrcache */ 526 #define NFS_LATTR_NOSHRINK 0x01 527 #define NFS_LATTR_NOMTIMECHECK 0x02 528 529 #define NFSRV_RECLIMIT(slp) ((slp)->ns_numrec >= nfsd_waiting + 4) 530 531 /* 532 * This structure is used by the server for describing each request. 533 * Some fields are used only when write request gathering is performed. 534 */ 535 struct nfsrv_descript { 536 u_quad_t nd_time; /* Write deadline (usec) */ 537 off_t nd_off; /* Start byte offset */ 538 off_t nd_eoff; /* and end byte offset */ 539 LIST_ENTRY(nfsrv_descript) nd_hash; /* Hash list */ 540 LIST_ENTRY(nfsrv_descript) nd_tq; /* and timer list */ 541 LIST_HEAD(,nfsrv_descript) nd_coalesce; /* coalesced writes */ 542 struct mbuf *nd_mrep; /* Request mbuf list */ 543 struct mbuf *nd_md; /* Current dissect mbuf */ 544 struct mbuf *nd_mreq; /* Reply mbuf list */ 545 struct sockaddr *nd_nam; /* and socket addr */ 546 struct sockaddr *nd_nam2; /* return socket addr */ 547 caddr_t nd_dpos; /* Current dissect pos */ 548 u_int32_t nd_procnum; /* RPC # */ 549 int nd_stable; /* storage type */ 550 int nd_flag; /* nd_flag */ 551 int nd_len; /* Length of this write */ 552 int nd_repstat; /* Reply status */ 553 u_int32_t nd_retxid; /* Reply xid */ 554 struct timeval nd_starttime; /* Time RPC initiated */ 555 fhandle_t nd_fh; /* File handle */ 556 struct ucred nd_cr; /* Credentials */ 557 }; 558 559 /* Bits for "nd_flag" */ 560 #define ND_READ 0x01 561 #define ND_WRITE 0x02 562 #define ND_CHECK 0x04 563 #define ND_NFSV3 0x08 564 #define ND_UNUSED010 0x10 565 #define ND_KERBNICK 0x20 566 #define ND_KERBFULL 0x40 567 #define ND_KERBAUTH (ND_KERBNICK | ND_KERBFULL) 568 569 extern TAILQ_HEAD(nfsd_head, nfsd) nfsd_head; 570 extern int nfsd_head_flag; 571 extern int nfsd_waiting; 572 #define NFSD_CHECKSLP 0x01 573 574 /* 575 * These macros compare nfsrv_descript structures. 576 */ 577 #define NFSW_CONTIG(o, n) \ 578 ((o)->nd_eoff >= (n)->nd_off && \ 579 !bcmp((caddr_t)&(o)->nd_fh, (caddr_t)&(n)->nd_fh, NFSX_V3FH)) 580 581 #define NFSW_SAMECRED(o, n) \ 582 (((o)->nd_flag & ND_KERBAUTH) == ((n)->nd_flag & ND_KERBAUTH) && \ 583 !bcmp((caddr_t)&(o)->nd_cr, (caddr_t)&(n)->nd_cr, \ 584 sizeof (struct ucred))) 585 586 /* 587 * Defines for WebNFS 588 */ 589 590 #define WEBNFS_ESC_CHAR '%' 591 #define WEBNFS_SPECCHAR_START 0x80 592 593 #define WEBNFS_NATIVE_CHAR 0x80 594 /* 595 * .. 596 * Possibly more here in the future. 597 */ 598 599 /* 600 * Macro for converting escape characters in WebNFS pathnames. 601 * Should really be in libkern. 602 */ 603 604 #define HEXTOC(c) \ 605 ((c) >= 'a' ? ((c) - ('a' - 10)) : \ 606 ((c) >= 'A' ? ((c) - ('A' - 10)) : ((c) - '0'))) 607 #define HEXSTRTOI(p) \ 608 ((HEXTOC(p[0]) << 4) + HEXTOC(p[1])) 609 610 #ifdef NFS_DEBUG 611 612 extern int nfs_debug; 613 #define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */ 614 #define NFS_DEBUG_WG 2 /* server write gathering */ 615 #define NFS_DEBUG_RC 4 /* server request caching */ 616 617 #define NFS_DPF(cat, args) \ 618 do { \ 619 if (nfs_debug & NFS_DEBUG_##cat) kprintf args; \ 620 } while (0) 621 622 #else 623 624 #define NFS_DPF(cat, args) 625 626 #endif 627 628 extern u_int32_t nfs_xdrneg1; 629 extern u_int32_t rpc_reply, rpc_msgdenied, rpc_mismatch, rpc_vers; 630 extern u_int32_t rpc_auth_unix, rpc_msgaccepted, rpc_call, rpc_autherr; 631 extern u_int32_t rpc_auth_kerb; 632 extern u_int32_t nfs_prog, nfs_true, nfs_false; 633 extern struct nfsstats nfsstats; 634 extern nfstype nfsv2_type[9]; 635 extern nfstype nfsv3_type[9]; 636 extern int nfsv2_procid[NFS_NPROCS]; 637 extern enum vtype nv3tov_type[8]; 638 extern int nfsv3_procid[NFS_NPROCS]; 639 extern int nfs_ticks; 640 extern struct nfsrtt nfsrtt; 641 extern int nfsrtton; 642 extern int nfsrvw_procrastinate; 643 extern int nfsrvw_procrastinate_v3; 644 extern int32_t (*nfsrv3_procs[NFS_NPROCS]) (struct nfsrv_descript *nd, 645 struct nfssvc_sock *slp, 646 struct thread *td, 647 struct mbuf **mreqp); 648 649 extern struct nfsv3_diskless nfsv3_diskless; 650 extern struct lwkt_token nfs_token; 651 652 u_quad_t nfs_curusec (void); 653 int nfs_init (struct vfsconf *vfsp); 654 int nfs_uninit (struct vfsconf *vfsp); 655 int nfs_reply (struct nfsmount *nmp, struct nfsreq *); 656 int nfs_getreq (struct nfsrv_descript *,struct nfsd *,int); 657 int nfs_send (struct socket *, struct sockaddr *, struct mbuf *, 658 struct nfsreq *); 659 int nfs_rephead (int, struct nfsrv_descript *, struct nfssvc_sock *, 660 int, struct mbuf **, struct mbuf **, caddr_t *); 661 int nfs_sndlock (struct nfsmount *, struct nfsreq *); 662 void nfs_sndunlock (struct nfsmount *); 663 int nfs_slplock (struct nfssvc_sock *, int); 664 void nfs_slpunlock (struct nfssvc_sock *); 665 int nfs_disct (struct mbuf **, caddr_t *, int, int, caddr_t *); 666 int nfs_vinvalbuf (struct vnode *, int, int); 667 int nfs_readrpc_uio (struct vnode *, struct uio *); 668 void nfs_readrpc_bio (struct vnode *, struct bio *); 669 int nfs_writerpc_uio (struct vnode *, struct uio *, int *, int *); 670 void nfs_writerpc_bio (struct vnode *, struct bio *); 671 int nfs_commitrpc_uio (struct vnode *vp, u_quad_t offset, int cnt, 672 struct thread *td); 673 void nfs_commitrpc_bio (struct vnode *vp, struct bio *); 674 int nfs_readdirrpc_uio (struct vnode *, struct uio *); 675 void nfs_startio(struct vnode *vp, struct bio *, struct thread *); 676 int nfs_doio(struct vnode *vp, struct bio *, struct thread *); 677 void nfs_asyncio(struct vnode *vp, struct bio *bio); 678 int nfs_asyncok(struct nfsmount *nmp); 679 680 int nfs_readlinkrpc_uio (struct vnode *, struct uio *); 681 int nfs_sigintr (struct nfsmount *, struct nfsreq *, struct thread *); 682 int nfs_readdirplusrpc_uio (struct vnode *, struct uio *); 683 int netaddr_match (int, union nethostaddr *, struct sockaddr *); 684 685 int nfs_loadattrcache (struct vnode *, struct mbuf **, caddr_t *, 686 struct vattr *, int); 687 int nfs_namei (struct nlookupdata *, struct ucred *, int, 688 struct vnode **, struct vnode **, fhandle_t *, int, 689 struct nfssvc_sock *, struct sockaddr *, struct mbuf **, 690 caddr_t *, struct vnode **, struct thread *, int, int); 691 void nfsrv_initcache (void); 692 int nfs_getauth (struct nfsmount *, struct nfsreq *, struct ucred *, 693 char **, int *, char *, int *, NFSKERBKEY_T); 694 int nfs_getnickauth (struct nfsmount *, struct ucred *, char **, 695 int *, char *, int); 696 int nfs_savenickauth (struct nfsmount *, struct ucred *, int, 697 NFSKERBKEY_T, struct mbuf **, char **, 698 struct mbuf *); 699 int nfs_adv (struct mbuf **, caddr_t *, int, int); 700 void nfs_nhinit (void); 701 int nfs_nmcancelreqs (struct nfsmount *); 702 void nfs_timer_callout (void*); 703 int nfsrv_dorec (struct nfssvc_sock *, struct nfsd *, 704 struct nfsrv_descript **); 705 int nfsrv_getcache (struct nfsrv_descript *, struct nfssvc_sock *, 706 struct mbuf **); 707 void nfsrv_updatecache (struct nfsrv_descript *, int, struct mbuf *); 708 void nfsrv_cleancache (void); 709 int nfs_connect (struct nfsmount *, struct nfsreq *); 710 void nfs_disconnect (struct nfsmount *); 711 void nfs_safedisconnect (struct nfsmount *); 712 int nfs_getattrcache (struct vnode *, struct vattr *); 713 int nfs_bioread (struct vnode *, struct uio *, int); 714 void nfsrv_init (int); 715 void nfs_clearcommit (struct mount *); 716 int nfsrv_errmap (struct nfsrv_descript *, int); 717 void nfsrvw_sort (gid_t *, int); 718 void nfsrv_setcred (struct ucred *, struct ucred *); 719 int nfsrv_object_create (struct vnode *); 720 void nfsrv_wakenfsd (struct nfssvc_sock *slp, int nparallel); 721 int nfsrv_writegather (struct nfsrv_descript **, struct nfssvc_sock *, 722 struct thread *, struct mbuf **); 723 int nfs_fsinfo (struct nfsmount *, struct vnode *, struct thread *p); 724 725 int nfsrv3_access (struct nfsrv_descript *nfsd, 726 struct nfssvc_sock *slp, 727 struct thread *td, struct mbuf **mrq); 728 int nfsrv_commit (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 729 struct thread *td, struct mbuf **mrq); 730 int nfsrv_create (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 731 struct thread *td, struct mbuf **mrq); 732 int nfsrv_fhtovp (fhandle_t *, int, struct mount **, struct vnode **, 733 struct ucred *, struct nfssvc_sock *, 734 struct sockaddr *, int *, int, int); 735 int nfsrv_setpublicfs (struct mount *, struct netexport *, 736 struct export_args *); 737 int nfs_ispublicfh (fhandle_t *); 738 int nfsrv_fsinfo (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 739 struct thread *td, struct mbuf **mrq); 740 int nfsrv_getattr (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 741 struct thread *td, struct mbuf **mrq); 742 int nfsrv_link (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 743 struct thread *td, struct mbuf **mrq); 744 int nfsrv_lookup (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 745 struct thread *td, struct mbuf **mrq); 746 int nfsrv_mkdir (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 747 struct thread *td, struct mbuf **mrq); 748 int nfsrv_mknod (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 749 struct thread *td, struct mbuf **mrq); 750 int nfsrv_noop (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 751 struct thread *td, struct mbuf **mrq); 752 int nfsrv_null (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 753 struct thread *td, struct mbuf **mrq); 754 int nfsrv_pathconf (struct nfsrv_descript *nfsd, 755 struct nfssvc_sock *slp, struct thread *td, 756 struct mbuf **mrq); 757 int nfsrv_read (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 758 struct thread *td, struct mbuf **mrq); 759 int nfsrv_readdir (struct nfsrv_descript *nfsd, 760 struct nfssvc_sock *slp, 761 struct thread *td, struct mbuf **mrq); 762 int nfsrv_readdirplus (struct nfsrv_descript *nfsd, 763 struct nfssvc_sock *slp, struct thread *td, 764 struct mbuf **mrq); 765 int nfsrv_readlink (struct nfsrv_descript *nfsd, 766 struct nfssvc_sock *slp, struct thread *td, 767 struct mbuf **mrq); 768 int nfsrv_remove (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 769 struct thread *td, struct mbuf **mrq); 770 int nfsrv_rename (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 771 struct thread *td, struct mbuf **mrq); 772 int nfsrv_rmdir (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 773 struct thread *td, struct mbuf **mrq); 774 int nfsrv_setattr (struct nfsrv_descript *nfsd, 775 struct nfssvc_sock *slp, 776 struct thread *td, struct mbuf **mrq); 777 int nfsrv_statfs (struct nfsrv_descript *nfsd, 778 struct nfssvc_sock *slp, 779 struct thread *td, struct mbuf **mrq); 780 int nfsrv_symlink (struct nfsrv_descript *nfsd, 781 struct nfssvc_sock *slp, 782 struct thread *td, struct mbuf **mrq); 783 int nfsrv_write (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 784 struct thread *td, struct mbuf **mrq); 785 void nfsrv_rcv (struct socket *so, void *arg, int waitflag); 786 void nfsrv_rcv_upcall (struct socket *so, void *arg, int waitflag); 787 void nfsrv_slpderef (struct nfssvc_sock *slp); 788 void nfsrv_slpref (struct nfssvc_sock *slp); 789 int nfs_meta_setsize (struct vnode *vp, struct thread *td, 790 off_t nbase, int trivial); 791 int nfs_clientd(struct nfsmount *nmp, struct ucred *cred, 792 struct nfsd_cargs *ncd, int flag, caddr_t argp, 793 struct thread *td); 794 void nfssvc_iod_reader(void *arg); 795 void nfssvc_iod_writer(void *arg); 796 void nfssvc_iod_stop1(struct nfsmount *nmp); 797 void nfssvc_iod_stop2(struct nfsmount *nmp); 798 void nfssvc_iod_writer_wakeup(struct nfsmount *nmp); 799 void nfssvc_iod_reader_wakeup(struct nfsmount *nmp); 800 801 #endif /* _KERNEL */ 802 803 #endif 804