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 1.21 2008/09/17 21:44:24 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 #include <sys/vnode.h> 49 #include <sys/mutex.h> 50 51 /* 52 * Tunable constants for nfs 53 */ 54 55 #define NFS_MAXIOVEC 34 56 #define NFS_TICKINTVL 200 /* Desired time for a tick (msec) */ 57 #define NFS_HZ (hz / nfs_ticks) /* Ticks/sec */ 58 #define NFS_TIMEO (1 * NFS_HZ) /* Default timeout = 1 second */ 59 #define NFS_MINTIMEO (1 * NFS_HZ) /* Min timeout to use */ 60 #define NFS_MAXTIMEO (60 * NFS_HZ) /* Max timeout to backoff to */ 61 #define NFS_MINIDEMTIMEO (5 * NFS_HZ) /* Min timeout for non-idempotent ops*/ 62 #define NFS_MAXREXMIT 100 /* Stop counting after this many */ 63 #define NFS_MAXWINDOW 1024 /* Max number of outstanding requests */ 64 #define NFS_RETRANS 10 /* Num of retrans for soft mounts */ 65 #define NFS_MAXGRPS 16 /* Max. size of groups list */ 66 #ifndef NFS_MINATTRTIMO 67 #define NFS_MINATTRTIMO 3 /* VREG attrib cache timeout in sec */ 68 #endif 69 #ifndef NFS_DEFATTRTIMO 70 #define NFS_DEFATTRTIMO 10 /* VREG attrib cache timeout in sec */ 71 #endif 72 #ifndef NFS_MAXATTRTIMO 73 #define NFS_MAXATTRTIMO 60 74 #endif 75 #ifndef NFS_MINDIRATTRTIMO 76 #define NFS_MINDIRATTRTIMO 30 /* VDIR attrib cache timeout in sec */ 77 #endif 78 #ifndef NFS_MAXDIRATTRTIMO 79 #define NFS_MAXDIRATTRTIMO 60 80 #endif 81 #ifndef NFS_DEADTHRESH 82 #define NFS_DEADTHRESH NFS_NEVERDEAD 83 #endif 84 #define NFS_NEVERDEAD 9 85 #define NFS_WSIZE 8192 /* Def. write data size <= 8192 */ 86 #define NFS_RSIZE 8192 /* Def. read data size <= 8192 */ 87 #define NFS_READDIRSIZE 8192 /* Def. readdir size */ 88 #define NFS_DEFRAHEAD 6 /* Def. read ahead # blocks */ 89 #define NFS_MAXRAHEAD 32 /* Max. read ahead # blocks */ 90 #define NFS_MAXASYNCBIO 64 /* Max. asynchronous BIOs */ 91 #define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */ 92 #define NFS_MAXGATHERDELAY 100 /* Max. write gather delay (msec) */ 93 #ifndef NFS_GATHERDELAY 94 #define NFS_GATHERDELAY 20 /* Default write gather delay (msec) */ 95 #endif 96 #define NFS_DIRBLKSIZ 4096 /* Must be a multiple of DIRBLKSIZ */ 97 #ifdef _KERNEL 98 #define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */ 99 #endif 100 101 #define NFS_ASYSCALE 256 102 #define NFS_MINASYNC_SCALED (4 * NFS_ASYSCALE) 103 #define NFS_MAXASYNC_SCALED (NFS_MAXASYNCBIO * NFS_ASYSCALE) 104 105 /* 106 * Oddballs 107 */ 108 #define NMOD(a) ((a) % nfs_asyncdaemons) 109 #define NFS_CMPFH(n, f, s) \ 110 ((n)->n_fhsize == (s) && !bcmp((caddr_t)(n)->n_fhp, (caddr_t)(f), (s))) 111 #define NFS_ISV3(v) (VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV3) 112 #define NFS_SRVMAXDATA(n) \ 113 (((n)->nd_flag & ND_NFSV3) ? (((n)->nd_nam2) ? \ 114 NFS_MAXDGRAMDATA : NFS_MAXDATA) : NFS_V2MAXDATA) 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_FORCE 0x00000100 /* Forced unmount */ 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_SENDSPACE 0x01000000 /* Printed sendspace warning */ 186 #define NFSSTA_UNUSED25 0x02000000 187 #define NFSSTA_UNUSED26 0x04000000 188 #define NFSSTA_UNUSED27 0x08000000 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 extern int nfs_async; 316 extern int nfs_maxasyncbio; 317 extern int nfs_soreserve; 318 319 struct uio; 320 struct buf; 321 struct bio; 322 struct vattr; 323 struct nlookupdata; 324 325 /* 326 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts. 327 * What should be in this set is open to debate, but I believe that since 328 * I/O system calls on ufs are never interrupted by signals the set should 329 * be minimal. My reasoning is that many current programs that use signals 330 * such as SIGALRM will not expect file I/O system calls to be interrupted 331 * by them and break. 332 */ 333 #define NFSINT_SIGMASK(set) \ 334 (SIGISMEMBER(set, SIGINT) || SIGISMEMBER(set, SIGTERM) || \ 335 SIGISMEMBER(set, SIGHUP) || SIGISMEMBER(set, SIGKILL) || \ 336 SIGISMEMBER(set, SIGQUIT)) 337 338 /* 339 * Socket errors ignored for connectionless sockets?? 340 * For now, ignore them all 341 */ 342 #define NFSIGNORE_SOERROR(s, e) \ 343 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \ 344 ((s) & PR_CONNREQUIRED) == 0) 345 346 struct nfsm_info; 347 348 /* 349 * Nfs outstanding request list element 350 */ 351 struct nfsreq { 352 TAILQ_ENTRY(nfsreq) r_chain; 353 struct nfsm_info *r_info; 354 struct mtx_link r_link; 355 struct mbuf *r_mreq; 356 struct mbuf *r_mrep; 357 struct mbuf *r_md; 358 caddr_t r_dpos; 359 struct nfsmount *r_nmp; 360 struct vnode *r_vp; 361 u_int32_t r_xid; 362 int r_flags; /* flags on request, see below */ 363 int r_retry; /* max retransmission count */ 364 int r_rexmit; /* current retrans count */ 365 int r_timer; /* tick counter on reply */ 366 u_int32_t r_procnum; /* NFS procedure number */ 367 int r_rtt; /* RTT for rpc */ 368 struct thread *r_td; /* Thread that did I/O system call */ 369 struct mbuf *r_mrest; 370 struct mbuf *r_mheadend; 371 struct mbuf **r_mrp; 372 struct mbuf **r_mdp; 373 caddr_t *r_dposp; 374 int r_mrest_len; 375 int r_failed_auth; 376 NFSKERBKEY_T r_key; 377 struct ucred *r_cred; 378 }; 379 380 /* 381 * Flag values for r_flags 382 * 383 * R_TIMING - Timer is active on request. If timer goes off the 384 * request's retransmit counter will bump and it will 385 * be flagged NEEDSXMIT to retransmit. 386 * 387 * R_SENT - Indicates that the request was sent the first time. 388 * This stays set unless we want to repeat a first-time 389 * styled transmit sequence. 390 * 391 * R_NEEDSXMIT - The request needs a [re]transmission. It will still 392 * be sitting on nm_reqq if synchronous, otherwise it 393 * will be moved to nm_reqtxq. 394 * 395 * R_ASYNC - Indicates an asynchronous request, which modifies the 396 * behavior of how it is dealt with. 397 * 398 * R_LOCKED - Prevents the request from being moved between queues 399 * e.g. by the timer or by the async thread. 400 */ 401 #define R_TIMING 0x0001 /* timing request (in mntp) */ 402 #define R_SENT 0x0002 /* request has been sent */ 403 #define R_SOFTTERM 0x0004 /* soft mnt, too many retries */ 404 #define R_INTR 0x0008 /* intr mnt, signal pending */ 405 #define R_SOCKERR 0x0010 /* Fatal error on socket */ 406 #define R_TPRINTFMSG 0x0020 /* Did a tprintf msg. */ 407 #define R_NEEDSXMIT 0x0040 /* Needs [re]transmission */ 408 #define R_ASYNC 0x0080 /* Asynchronous mechanics */ 409 #define R_ONREQQ 0x0100 /* On primary request queue */ 410 #define R_LOCKED 0x0200 /* Locked by the someone */ 411 #define R_WANTED 0x0400 /* Someone wants access */ 412 413 /* 414 * A list of nfssvc_sock structures is maintained with all the sockets 415 * that require service by the nfsd. 416 * The nfsuid structs hang off of the nfssvc_sock structs in both lru 417 * and uid hash lists. 418 */ 419 #ifndef NFS_UIDHASHSIZ 420 #define NFS_UIDHASHSIZ 29 /* Tune the size of nfssvc_sock with this */ 421 #endif 422 #define NUIDHASH(sock, uid) \ 423 (&(sock)->ns_uidhashtbl[(uid) % NFS_UIDHASHSIZ]) 424 #ifndef NFS_WDELAYHASHSIZ 425 #define NFS_WDELAYHASHSIZ 16 /* and with this */ 426 #endif 427 #define NWDELAYHASH(sock, f) \ 428 (&(sock)->ns_wdelayhashtbl[(*((u_int32_t *)(f))) % NFS_WDELAYHASHSIZ]) 429 #ifndef NFS_MUIDHASHSIZ 430 #define NFS_MUIDHASHSIZ 63 /* Tune the size of nfsmount with this */ 431 #endif 432 #define NMUIDHASH(nmp, uid) \ 433 (&(nmp)->nm_uidhashtbl[(uid) % NFS_MUIDHASHSIZ]) 434 435 /* 436 * Network address hash list element 437 */ 438 union nethostaddr { 439 u_int32_t had_inetaddr; 440 struct sockaddr *had_nam; 441 }; 442 443 struct nfsuid { 444 TAILQ_ENTRY(nfsuid) nu_lru; /* LRU chain */ 445 LIST_ENTRY(nfsuid) nu_hash; /* Hash list */ 446 int nu_flag; /* Flags */ 447 union nethostaddr nu_haddr; /* Host addr. for dgram sockets */ 448 struct ucred nu_cr; /* Cred uid mapped to */ 449 int nu_expire; /* Expiry time (sec) */ 450 struct timeval nu_timestamp; /* Kerb. timestamp */ 451 u_int32_t nu_nickname; /* Nickname on server */ 452 NFSKERBKEY_T nu_key; /* and session key */ 453 }; 454 455 #define nu_inetaddr nu_haddr.had_inetaddr 456 #define nu_nam nu_haddr.had_nam 457 /* Bits for nu_flag */ 458 #define NU_INETADDR 0x1 459 #define NU_NAM 0x2 460 #define NU_NETFAM(u) (((u)->nu_flag & NU_INETADDR) ? AF_INET : AF_ISO) 461 462 struct nfsrv_rec { 463 STAILQ_ENTRY(nfsrv_rec) nr_link; 464 struct sockaddr *nr_address; 465 struct mbuf *nr_packet; 466 }; 467 468 struct nfssvc_sock { 469 TAILQ_ENTRY(nfssvc_sock) ns_chain; /* List of all nfssvc_sock's */ 470 TAILQ_HEAD(, nfsuid) ns_uidlruhead; 471 struct file *ns_fp; 472 struct socket *ns_so; 473 struct sockaddr *ns_nam; 474 struct mbuf *ns_raw; 475 struct mbuf *ns_rawend; 476 STAILQ_HEAD(, nfsrv_rec) ns_rec; 477 struct mbuf *ns_frag; 478 int ns_numrec; 479 int ns_flag; 480 struct mtx ns_solock; 481 int ns_cc; 482 int ns_reclen; 483 int ns_numuids; 484 u_int32_t ns_sref; 485 LIST_HEAD(, nfsrv_descript) ns_tq; /* Write gather lists */ 486 LIST_HEAD(, nfsuid) ns_uidhashtbl[NFS_UIDHASHSIZ]; 487 LIST_HEAD(nfsrvw_delayhash, nfsrv_descript) ns_wdelayhashtbl[NFS_WDELAYHASHSIZ]; 488 }; 489 490 /* Bits for "ns_flag" */ 491 #define SLP_VALID 0x01 492 #define SLP_DOREC 0x02 493 #define SLP_NEEDQ 0x04 494 #define SLP_DISCONN 0x08 495 #define SLP_GETSTREAM 0x10 496 #define SLP_LASTFRAG 0x20 497 #define SLP_ALLFLAGS 0xff 498 499 extern TAILQ_HEAD(nfssvc_sockhead, nfssvc_sock) nfssvc_sockhead; 500 extern int nfssvc_sockhead_flag; 501 extern TAILQ_HEAD(nfsmount_head, nfsmount) nfs_mountq; 502 503 #define SLP_INIT 0x01 504 #define SLP_WANTINIT 0x02 505 506 /* 507 * One of these structures is allocated for each nfsd. 508 */ 509 struct nfsd { 510 TAILQ_ENTRY(nfsd) nfsd_chain; /* List of all nfsd's */ 511 int nfsd_flag; /* NFSD_ flags */ 512 struct nfssvc_sock *nfsd_slp; /* Current socket */ 513 int nfsd_authlen; /* Authenticator len */ 514 u_char nfsd_authstr[RPCAUTH_MAXSIZ]; /* Authenticator data */ 515 int nfsd_verflen; /* and the Verifier */ 516 u_char nfsd_verfstr[RPCVERF_MAXSIZ]; 517 struct thread *nfsd_td; /* thread ptr */ 518 struct nfsrv_descript *nfsd_nd; /* Associated nfsrv_descript */ 519 }; 520 521 /* Bits for "nfsd_flag" */ 522 #define NFSD_WAITING 0x01 523 #define NFSD_REQINPROG 0x02 524 #define NFSD_NEEDAUTH 0x04 525 #define NFSD_AUTHFAIL 0x08 526 527 /* Bits for loadattrcache */ 528 #define NFS_LATTR_NOSHRINK 0x01 529 #define NFS_LATTR_NOMTIMECHECK 0x02 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; 650 651 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 (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_slpderef (struct nfssvc_sock *slp); 786 struct buf *nfs_meta_setsize (struct vnode *vp, struct thread *td, 787 off_t nbase, int boff, int bytes); 788 int nfs_clientd(struct nfsmount *nmp, struct ucred *cred, 789 struct nfsd_cargs *ncd, int flag, caddr_t argp, 790 struct thread *td); 791 void nfssvc_iod_reader(void *arg); 792 void nfssvc_iod_writer(void *arg); 793 void nfssvc_iod_stop1(struct nfsmount *nmp); 794 void nfssvc_iod_stop2(struct nfsmount *nmp); 795 void nfssvc_iod_writer_wakeup(struct nfsmount *nmp); 796 void nfssvc_iod_reader_wakeup(struct nfsmount *nmp); 797 798 #endif /* _KERNEL */ 799 800 #endif 801