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_NFS); 299 MALLOC_DECLARE(M_NFSREQ); 300 MALLOC_DECLARE(M_NFSDIROFF); 301 MALLOC_DECLARE(M_NFSRVDESC); 302 MALLOC_DECLARE(M_NFSUID); 303 MALLOC_DECLARE(M_NFSD); 304 MALLOC_DECLARE(M_NFSBIGFH); 305 #endif 306 307 extern struct callout nfs_timer_handle; 308 extern int nfs_async; 309 extern int nfs_maxasyncbio; 310 extern int nfs_soreserve; 311 312 struct uio; 313 struct buf; 314 struct bio; 315 struct vattr; 316 struct nlookupdata; 317 318 /* 319 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts. 320 * What should be in this set is open to debate, but I believe that since 321 * I/O system calls on ufs are never interrupted by signals the set should 322 * be minimal. My reasoning is that many current programs that use signals 323 * such as SIGALRM will not expect file I/O system calls to be interrupted 324 * by them and break. 325 */ 326 #define NFSINT_SIGMASK(set) \ 327 (SIGISMEMBER(set, SIGINT) || SIGISMEMBER(set, SIGTERM) || \ 328 SIGISMEMBER(set, SIGHUP) || SIGISMEMBER(set, SIGKILL) || \ 329 SIGISMEMBER(set, SIGQUIT)) 330 331 /* 332 * Socket errors ignored for connectionless sockets?? 333 * For now, ignore them all 334 */ 335 #define NFSIGNORE_SOERROR(s, e) \ 336 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \ 337 ((s) & PR_CONNREQUIRED) == 0) 338 339 struct nfsm_info; 340 341 /* 342 * Nfs outstanding request list element 343 */ 344 struct nfsreq { 345 TAILQ_ENTRY(nfsreq) r_chain; 346 struct nfsm_info *r_info; 347 mtx_link_t r_link; 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 struct mbuf *r_mrest; 363 struct mbuf *r_mheadend; 364 struct mbuf **r_mrp; 365 struct mbuf **r_mdp; 366 caddr_t *r_dposp; 367 int r_mrest_len; 368 int r_failed_auth; 369 NFSKERBKEY_T r_key; 370 struct ucred *r_cred; 371 }; 372 373 /* 374 * Flag values for r_flags 375 * 376 * R_TIMING - Timer is active on request. If timer goes off the 377 * request's retransmit counter will bump and it will 378 * be flagged NEEDSXMIT to retransmit. 379 * 380 * R_SENT - Indicates that the request was sent the first time. 381 * This stays set unless we want to repeat a first-time 382 * styled transmit sequence. 383 * 384 * R_NEEDSXMIT - The request needs a [re]transmission. It will still 385 * be sitting on nm_reqq if synchronous, otherwise it 386 * will be moved to nm_reqtxq. 387 * 388 * R_ASYNC - Indicates an asynchronous request, which modifies the 389 * behavior of how it is dealt with. 390 * 391 * R_LOCKED - Prevents the request from being moved between queues 392 * e.g. by the timer or by the async thread. 393 */ 394 #define R_TIMING 0x0001 /* timing request (in mntp) */ 395 #define R_SENT 0x0002 /* request has been sent */ 396 #define R_SOFTTERM 0x0004 /* soft mnt, too many retries */ 397 #define R_INTR 0x0008 /* intr mnt, signal pending */ 398 #define R_SOCKERR 0x0010 /* Fatal error on socket */ 399 #define R_TPRINTFMSG 0x0020 /* Did a tprintf msg. */ 400 #define R_NEEDSXMIT 0x0040 /* Needs [re]transmission */ 401 #define R_ASYNC 0x0080 /* Asynchronous mechanics */ 402 #define R_ONREQQ 0x0100 /* On primary request queue */ 403 #define R_LOCKED 0x0200 /* Locked by the someone */ 404 #define R_WANTED 0x0400 /* Someone wants access */ 405 406 /* 407 * A list of nfssvc_sock structures is maintained with all the sockets 408 * that require service by the nfsd. 409 * The nfsuid structs hang off of the nfssvc_sock structs in both lru 410 * and uid hash lists. 411 */ 412 #ifndef NFS_UIDHASHSIZ 413 #define NFS_UIDHASHSIZ 29 /* Tune the size of nfssvc_sock with this */ 414 #endif 415 #define NUIDHASH(sock, uid) \ 416 (&(sock)->ns_uidhashtbl[(uid) % NFS_UIDHASHSIZ]) 417 #ifndef NFS_WDELAYHASHSIZ 418 #define NFS_WDELAYHASHSIZ 16 /* and with this */ 419 #endif 420 #define NWDELAYHASH(sock, f) \ 421 (&(sock)->ns_wdelayhashtbl[(*((u_int32_t *)(f))) % NFS_WDELAYHASHSIZ]) 422 #ifndef NFS_MUIDHASHSIZ 423 #define NFS_MUIDHASHSIZ 63 /* Tune the size of nfsmount with this */ 424 #endif 425 #define NMUIDHASH(nmp, uid) \ 426 (&(nmp)->nm_uidhashtbl[(uid) % NFS_MUIDHASHSIZ]) 427 428 /* 429 * Network address hash list element 430 */ 431 union nethostaddr { 432 u_int32_t had_inetaddr; 433 struct sockaddr *had_nam; 434 }; 435 436 struct nfsuid { 437 TAILQ_ENTRY(nfsuid) nu_lru; /* LRU chain */ 438 LIST_ENTRY(nfsuid) nu_hash; /* Hash list */ 439 int nu_flag; /* Flags */ 440 union nethostaddr nu_haddr; /* Host addr. for dgram sockets */ 441 struct ucred nu_cr; /* Cred uid mapped to */ 442 time_t nu_expire; /* Expiry time (time_uptime) */ 443 struct timeval nu_timestamp; /* Kerb. timestamp */ 444 u_int32_t nu_nickname; /* Nickname on server */ 445 NFSKERBKEY_T nu_key; /* and session key */ 446 }; 447 448 #define nu_inetaddr nu_haddr.had_inetaddr 449 #define nu_nam nu_haddr.had_nam 450 /* Bits for nu_flag */ 451 #define NU_INETADDR 0x1 452 #define NU_NAM 0x2 453 454 struct nfsrv_rec { 455 STAILQ_ENTRY(nfsrv_rec) nr_link; 456 struct sockaddr *nr_address; 457 struct mbuf *nr_packet; 458 }; 459 460 struct nfssvc_sock { 461 TAILQ_ENTRY(nfssvc_sock) ns_chain; /* List of all nfssvc_sock's */ 462 TAILQ_HEAD(, nfsuid) ns_uidlruhead; 463 struct file *ns_fp; 464 struct socket *ns_so; 465 struct sockaddr *ns_nam; 466 struct mbuf *ns_raw; 467 struct mbuf *ns_rawend; 468 STAILQ_HEAD(, nfsrv_rec) ns_rec; 469 struct mbuf *ns_frag; 470 int ns_numrec; 471 u_int32_t ns_flag; 472 u_int32_t ns_needq_upcall; 473 struct mtx ns_solock; 474 int ns_cc; 475 int ns_reclen; 476 int ns_numuids; 477 u_int32_t ns_sref; 478 LIST_HEAD(, nfsrv_descript) ns_tq; /* Write gather lists */ 479 LIST_HEAD(, nfsuid) ns_uidhashtbl[NFS_UIDHASHSIZ]; 480 LIST_HEAD(nfsrvw_delayhash, nfsrv_descript) ns_wdelayhashtbl[NFS_WDELAYHASHSIZ]; 481 struct lwkt_token ns_token; 482 }; 483 484 /* Bits for "ns_flag" */ 485 #define SLP_VALID 0x0001 486 #define SLP_DOREC 0x0002 /* socket holding at least one record */ 487 #define SLP_NEEDQ 0x0004 /* socket needs general rx processing */ 488 #define SLP_DISCONN 0x0008 489 #define SLP_GETSTREAM 0x0010 /* receive stream interlock */ 490 #define SLP_LASTFRAG 0x0020 491 492 #define SLP_ALLFLAGS 0xff 493 #define SLP_ACTION_MASK (SLP_NEEDQ | SLP_DOREC | SLP_DISCONN) 494 495 extern TAILQ_HEAD(nfssvc_sockhead, nfssvc_sock) nfssvc_sockhead; 496 extern int nfssvc_sockhead_flag; 497 extern TAILQ_HEAD(nfsmount_head, nfsmount) nfs_mountq; 498 499 #define SLP_INIT 0x01 500 #define SLP_WANTINIT 0x02 501 502 /* 503 * One of these structures is allocated for each nfsd. 504 */ 505 struct nfsd { 506 TAILQ_ENTRY(nfsd) nfsd_chain; /* List of all nfsd's */ 507 int nfsd_flag; /* NFSD_ flags */ 508 struct nfssvc_sock *nfsd_slp; /* Current socket */ 509 int nfsd_authlen; /* Authenticator len */ 510 u_char nfsd_authstr[RPCAUTH_MAXSIZ]; /* Authenticator data */ 511 int nfsd_verflen; /* and the Verifier */ 512 u_char nfsd_verfstr[RPCVERF_MAXSIZ]; 513 struct thread *nfsd_td; /* thread ptr */ 514 struct nfsrv_descript *nfsd_nd; /* Associated nfsrv_descript */ 515 }; 516 517 /* Bits for "nfsd_flag" */ 518 #define NFSD_WAITING 0x01 519 #define NFSD_REQINPROG 0x02 520 #define NFSD_NEEDAUTH 0x04 521 #define NFSD_AUTHFAIL 0x08 522 523 /* Bits for loadattrcache */ 524 #define NFS_LATTR_NOSHRINK 0x01 525 #define NFS_LATTR_NOMTIMECHECK 0x02 526 527 #define NFSRV_RECLIMIT(slp) ((slp)->ns_numrec >= nfsd_waiting + 4) 528 529 /* 530 * This structure is used by the server for describing each request. 531 * Some fields are used only when write request gathering is performed. 532 */ 533 struct nfsrv_descript { 534 u_quad_t nd_time; /* Write deadline (usec) */ 535 off_t nd_off; /* Start byte offset */ 536 off_t nd_eoff; /* and end byte offset */ 537 LIST_ENTRY(nfsrv_descript) nd_hash; /* Hash list */ 538 LIST_ENTRY(nfsrv_descript) nd_tq; /* and timer list */ 539 LIST_HEAD(,nfsrv_descript) nd_coalesce; /* coalesced writes */ 540 struct mbuf *nd_mrep; /* Request mbuf list */ 541 struct mbuf *nd_md; /* Current dissect mbuf */ 542 struct mbuf *nd_mreq; /* Reply mbuf list */ 543 struct sockaddr *nd_nam; /* and socket addr */ 544 struct sockaddr *nd_nam2; /* return socket addr */ 545 caddr_t nd_dpos; /* Current dissect pos */ 546 u_int32_t nd_procnum; /* RPC # */ 547 int nd_stable; /* storage type */ 548 int nd_flag; /* nd_flag */ 549 int nd_len; /* Length of this write */ 550 int nd_repstat; /* Reply status */ 551 u_int32_t nd_retxid; /* Reply xid */ 552 struct timeval nd_starttime; /* Time RPC initiated */ 553 fhandle_t nd_fh; /* File handle */ 554 struct ucred nd_cr; /* Credentials */ 555 }; 556 557 /* Bits for "nd_flag" */ 558 #define ND_READ 0x01 559 #define ND_WRITE 0x02 560 #define ND_CHECK 0x04 561 #define ND_NFSV3 0x08 562 #define ND_UNUSED010 0x10 563 #define ND_KERBNICK 0x20 564 #define ND_KERBFULL 0x40 565 #define ND_KERBAUTH (ND_KERBNICK | ND_KERBFULL) 566 567 extern TAILQ_HEAD(nfsd_head, nfsd) nfsd_head; 568 extern int nfsd_head_flag; 569 extern int nfsd_waiting; 570 #define NFSD_CHECKSLP 0x01 571 572 /* 573 * These macros compare nfsrv_descript structures. 574 */ 575 #define NFSW_CONTIG(o, n) \ 576 ((o)->nd_eoff >= (n)->nd_off && \ 577 !bcmp((caddr_t)&(o)->nd_fh, (caddr_t)&(n)->nd_fh, NFSX_V3FH)) 578 579 #define NFSW_SAMECRED(o, n) \ 580 (((o)->nd_flag & ND_KERBAUTH) == ((n)->nd_flag & ND_KERBAUTH) && \ 581 !bcmp((caddr_t)&(o)->nd_cr, (caddr_t)&(n)->nd_cr, \ 582 sizeof (struct ucred))) 583 584 /* 585 * Defines for WebNFS 586 */ 587 588 #define WEBNFS_ESC_CHAR '%' 589 #define WEBNFS_SPECCHAR_START 0x80 590 591 #define WEBNFS_NATIVE_CHAR 0x80 592 /* 593 * .. 594 * Possibly more here in the future. 595 */ 596 597 /* 598 * Macro for converting escape characters in WebNFS pathnames. 599 * Should really be in libkern. 600 */ 601 602 #define HEXTOC(c) \ 603 ((c) >= 'a' ? ((c) - ('a' - 10)) : \ 604 ((c) >= 'A' ? ((c) - ('A' - 10)) : ((c) - '0'))) 605 #define HEXSTRTOI(p) \ 606 ((HEXTOC(p[0]) << 4) + HEXTOC(p[1])) 607 608 #ifdef NFS_DEBUG 609 610 extern int nfs_debug; 611 #define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */ 612 #define NFS_DEBUG_WG 2 /* server write gathering */ 613 #define NFS_DEBUG_RC 4 /* server request caching */ 614 615 #define NFS_DPF(cat, args) \ 616 do { \ 617 if (nfs_debug & NFS_DEBUG_##cat) kprintf args; \ 618 } while (0) 619 620 #else 621 622 #define NFS_DPF(cat, args) 623 624 #endif 625 626 extern u_int32_t nfs_xdrneg1; 627 extern u_int32_t rpc_reply, rpc_msgdenied, rpc_mismatch, rpc_vers; 628 extern u_int32_t rpc_auth_unix, rpc_msgaccepted, rpc_call, rpc_autherr; 629 extern u_int32_t rpc_auth_kerb; 630 extern u_int32_t nfs_prog, nfs_true, nfs_false; 631 extern struct nfsstats nfsstats; 632 extern nfstype nfsv2_type[9]; 633 extern nfstype nfsv3_type[9]; 634 extern int nfsv2_procid[NFS_NPROCS]; 635 extern enum vtype nv3tov_type[8]; 636 extern int nfsv3_procid[NFS_NPROCS]; 637 extern int nfs_ticks; 638 extern struct nfsrtt nfsrtt; 639 extern int nfsrtton; 640 extern int nfsrvw_procrastinate; 641 extern int nfsrvw_procrastinate_v3; 642 extern int32_t (*nfsrv3_procs[NFS_NPROCS]) (struct nfsrv_descript *nd, 643 struct nfssvc_sock *slp, 644 struct thread *td, 645 struct mbuf **mreqp); 646 647 extern struct nfsv3_diskless nfsv3_diskless; 648 extern struct lwkt_token nfs_token; 649 650 u_quad_t nfs_curusec (void); 651 int nfs_init (struct vfsconf *vfsp); 652 int nfs_uninit (struct vfsconf *vfsp); 653 struct ucred *nfs_crhold(struct ucred *cred); 654 int nfs_crsame(struct ucred *cr1, struct ucred *cr2); 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 void nfsrv_destroycache (void); 693 int nfs_getauth (struct nfsmount *, struct nfsreq *, struct ucred *, 694 char **, int *, char *, int *, NFSKERBKEY_T); 695 int nfs_getnickauth (struct nfsmount *, struct ucred *, char **, 696 int *, char *, int); 697 int nfs_savenickauth (struct nfsmount *, struct ucred *, int, 698 NFSKERBKEY_T, struct mbuf **, char **, 699 struct mbuf *); 700 int nfs_adv (struct mbuf **, caddr_t *, int, int); 701 void nfs_nhinit (void); 702 void nfs_nhdestroy (void); 703 int nfs_nmcancelreqs (struct nfsmount *); 704 void nfs_timer_callout (void*); 705 int nfsrv_dorec (struct nfssvc_sock *, struct nfsd *, 706 struct nfsrv_descript **); 707 int nfsrv_getcache (struct nfsrv_descript *, struct nfssvc_sock *, 708 struct mbuf **); 709 void nfsrv_updatecache (struct nfsrv_descript *, int, struct mbuf *); 710 void nfsrv_cleancache (void); 711 int nfs_connect (struct nfsmount *, struct nfsreq *); 712 void nfs_disconnect (struct nfsmount *); 713 void nfs_safedisconnect (struct nfsmount *); 714 int nfs_getattrcache (struct vnode *, struct vattr *); 715 int nfs_bioread (struct vnode *, struct uio *, int); 716 void nfsrv_init (int); 717 void nfs_clearcommit (struct mount *); 718 int nfsrv_errmap (struct nfsrv_descript *, int); 719 void nfsrvw_sort (gid_t *, int); 720 void nfsrv_setcred (struct ucred *, struct ucred *); 721 int nfsrv_object_create (struct vnode *); 722 void nfsrv_wakenfsd (struct nfssvc_sock *slp, int nparallel); 723 int nfsrv_writegather (struct nfsrv_descript **, struct nfssvc_sock *, 724 struct thread *, struct mbuf **); 725 int nfs_fsinfo (struct nfsmount *, struct vnode *, struct thread *p); 726 727 int nfsrv3_access (struct nfsrv_descript *nfsd, 728 struct nfssvc_sock *slp, 729 struct thread *td, struct mbuf **mrq); 730 int nfsrv_commit (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 731 struct thread *td, struct mbuf **mrq); 732 int nfsrv_create (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 733 struct thread *td, struct mbuf **mrq); 734 int nfsrv_fhtovp (fhandle_t *, int, struct mount **, struct vnode **, 735 struct ucred *, struct nfssvc_sock *, 736 struct sockaddr *, int *, int, int); 737 int nfsrv_setpublicfs (struct mount *, struct netexport *, 738 struct export_args *); 739 int nfs_ispublicfh (fhandle_t *); 740 int nfsrv_fsinfo (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 741 struct thread *td, struct mbuf **mrq); 742 int nfsrv_getattr (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 743 struct thread *td, struct mbuf **mrq); 744 int nfsrv_link (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 745 struct thread *td, struct mbuf **mrq); 746 int nfsrv_lookup (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 747 struct thread *td, struct mbuf **mrq); 748 int nfsrv_mkdir (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 749 struct thread *td, struct mbuf **mrq); 750 int nfsrv_mknod (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 751 struct thread *td, struct mbuf **mrq); 752 int nfsrv_noop (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 753 struct thread *td, struct mbuf **mrq); 754 int nfsrv_null (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 755 struct thread *td, struct mbuf **mrq); 756 int nfsrv_pathconf (struct nfsrv_descript *nfsd, 757 struct nfssvc_sock *slp, struct thread *td, 758 struct mbuf **mrq); 759 int nfsrv_read (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 760 struct thread *td, struct mbuf **mrq); 761 int nfsrv_readdir (struct nfsrv_descript *nfsd, 762 struct nfssvc_sock *slp, 763 struct thread *td, struct mbuf **mrq); 764 int nfsrv_readdirplus (struct nfsrv_descript *nfsd, 765 struct nfssvc_sock *slp, struct thread *td, 766 struct mbuf **mrq); 767 int nfsrv_readlink (struct nfsrv_descript *nfsd, 768 struct nfssvc_sock *slp, struct thread *td, 769 struct mbuf **mrq); 770 int nfsrv_remove (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 771 struct thread *td, struct mbuf **mrq); 772 int nfsrv_rename (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 773 struct thread *td, struct mbuf **mrq); 774 int nfsrv_rmdir (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 775 struct thread *td, struct mbuf **mrq); 776 int nfsrv_setattr (struct nfsrv_descript *nfsd, 777 struct nfssvc_sock *slp, 778 struct thread *td, struct mbuf **mrq); 779 int nfsrv_statfs (struct nfsrv_descript *nfsd, 780 struct nfssvc_sock *slp, 781 struct thread *td, struct mbuf **mrq); 782 int nfsrv_symlink (struct nfsrv_descript *nfsd, 783 struct nfssvc_sock *slp, 784 struct thread *td, struct mbuf **mrq); 785 int nfsrv_write (struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 786 struct thread *td, struct mbuf **mrq); 787 void nfsrv_rcv (struct socket *so, void *arg, int waitflag); 788 void nfsrv_rcv_upcall (struct socket *so, void *arg, int waitflag); 789 void nfsrv_slpderef (struct nfssvc_sock *slp); 790 void nfsrv_slpref (struct nfssvc_sock *slp); 791 int nfs_meta_setsize (struct vnode *vp, struct thread *td, 792 off_t nbase, int nvextflags); 793 int nfs_clientd(struct nfsmount *nmp, struct ucred *cred, 794 struct nfsd_cargs *ncd, int flag, caddr_t argp, 795 struct thread *td); 796 void nfssvc_iod_reader(void *arg); 797 void nfssvc_iod_writer(void *arg); 798 void nfssvc_iod_stop1(struct nfsmount *nmp); 799 void nfssvc_iod_stop2(struct nfsmount *nmp); 800 void nfssvc_iod_writer_wakeup(struct nfsmount *nmp); 801 void nfssvc_iod_reader_wakeup(struct nfsmount *nmp); 802 803 #endif /* _KERNEL */ 804 805 #endif 806