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 * $Id: nfs.h,v 1.30 1997/08/16 19:15:54 wollman Exp $ 38 */ 39 40 #ifndef _NFS_NFS_H_ 41 #define _NFS_NFS_H_ 42 43 /* 44 * Tunable constants for nfs 45 */ 46 47 #define NFS_MAXIOVEC 34 48 #define NFS_TICKINTVL 5 /* Desired time for a tick (msec) */ 49 #define NFS_HZ (hz / nfs_ticks) /* Ticks/sec */ 50 #define NFS_TIMEO (1 * NFS_HZ) /* Default timeout = 1 second */ 51 #define NFS_MINTIMEO (1 * NFS_HZ) /* Min timeout to use */ 52 #define NFS_MAXTIMEO (60 * NFS_HZ) /* Max timeout to backoff to */ 53 #define NFS_MINIDEMTIMEO (5 * NFS_HZ) /* Min timeout for non-idempotent ops*/ 54 #define NFS_MAXREXMIT 100 /* Stop counting after this many */ 55 #define NFS_MAXWINDOW 1024 /* Max number of outstanding requests */ 56 #define NFS_RETRANS 10 /* Num of retrans for soft mounts */ 57 #define NFS_MAXGRPS 16 /* Max. size of groups list */ 58 #ifndef NFS_MINATTRTIMO 59 #define NFS_MINATTRTIMO 5 /* Attribute cache timeout in sec */ 60 #endif 61 #ifndef NFS_MAXATTRTIMO 62 #define NFS_MAXATTRTIMO 60 63 #endif 64 #define NFS_WSIZE 8192 /* Def. write data size <= 8192 */ 65 #define NFS_RSIZE 8192 /* Def. read data size <= 8192 */ 66 #define NFS_READDIRSIZE 8192 /* Def. readdir size */ 67 #define NFS_DEFRAHEAD 1 /* Def. read ahead # blocks */ 68 #define NFS_MAXRAHEAD 4 /* Max. read ahead # blocks */ 69 #define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */ 70 #define NFS_MAXASYNCDAEMON 20 /* Max. number async_daemons runnable */ 71 #define NFS_MAXGATHERDELAY 100 /* Max. write gather delay (msec) */ 72 #ifndef NFS_GATHERDELAY 73 #define NFS_GATHERDELAY 10 /* Default write gather delay (msec) */ 74 #endif 75 #define NFS_DIRBLKSIZ 4096 /* Must be a multiple of DIRBLKSIZ */ 76 #ifdef KERNEL 77 #define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */ 78 #endif 79 80 /* 81 * Oddballs 82 */ 83 #define NMOD(a) ((a) % nfs_asyncdaemons) 84 #define NFS_CMPFH(n, f, s) \ 85 ((n)->n_fhsize == (s) && !bcmp((caddr_t)(n)->n_fhp, (caddr_t)(f), (s))) 86 #define NFS_ISV3(v) (VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV3) 87 #define NFS_SRVMAXDATA(n) \ 88 (((n)->nd_flag & ND_NFSV3) ? (((n)->nd_nam2) ? \ 89 NFS_MAXDGRAMDATA : NFS_MAXDATA) : NFS_V2MAXDATA) 90 91 /* 92 * XXX 93 * The B_INVAFTERWRITE flag should be set to whatever is required by the 94 * buffer cache code to say "Invalidate the block after it is written back". 95 */ 96 #define B_INVAFTERWRITE B_NOCACHE 97 98 /* 99 * The IO_METASYNC flag should be implemented for local file systems. 100 * (Until then, it is nothin at all.) 101 */ 102 #ifndef IO_METASYNC 103 #define IO_METASYNC 0 104 #endif 105 106 /* 107 * Set the attribute timeout based on how recently the file has been modified. 108 */ 109 #define NFS_ATTRTIMEO(np) \ 110 ((((np)->n_flag & NMODIFIED) || \ 111 (time.tv_sec - (np)->n_mtime) / 10 < NFS_MINATTRTIMO) ? NFS_MINATTRTIMO : \ 112 ((time.tv_sec - (np)->n_mtime) / 10 > NFS_MAXATTRTIMO ? NFS_MAXATTRTIMO : \ 113 (time.tv_sec - (np)->n_mtime) / 10)) 114 115 /* 116 * Expected allocation sizes for major data structures. If the actual size 117 * of the structure exceeds these sizes, then malloc() will be allocating 118 * almost twice the memory required. This is used in nfs_init() to warn 119 * the sysadmin that the size of a structure should be reduced. 120 * (These sizes are always a power of 2. If the kernel malloc() changes 121 * to one that does not allocate space in powers of 2 size, then this all 122 * becomes bunk!) 123 */ 124 #define NFS_NODEALLOC 256 125 #define NFS_MNTALLOC 512 126 #define NFS_SVCALLOC 256 127 #define NFS_UIDALLOC 128 128 129 /* 130 * Arguments to mount NFS 131 */ 132 #define NFS_ARGSVERSION 3 /* change when nfs_args changes */ 133 struct nfs_args { 134 int version; /* args structure version number */ 135 struct sockaddr *addr; /* file server address */ 136 int addrlen; /* length of address */ 137 int sotype; /* Socket type */ 138 int proto; /* and Protocol */ 139 u_char *fh; /* File handle to be mounted */ 140 int fhsize; /* Size, in bytes, of fh */ 141 int flags; /* flags */ 142 int wsize; /* write size in bytes */ 143 int rsize; /* read size in bytes */ 144 int readdirsize; /* readdir size in bytes */ 145 int timeo; /* initial timeout in .1 secs */ 146 int retrans; /* times to retry send */ 147 int maxgrouplist; /* Max. size of group list */ 148 int readahead; /* # of blocks to readahead */ 149 int leaseterm; /* Term (sec) of lease */ 150 int deadthresh; /* Retrans threshold */ 151 char *hostname; /* server's name */ 152 }; 153 154 /* 155 * NFS mount option flags 156 */ 157 #define NFSMNT_SOFT 0x00000001 /* soft mount (hard is default) */ 158 #define NFSMNT_WSIZE 0x00000002 /* set write size */ 159 #define NFSMNT_RSIZE 0x00000004 /* set read size */ 160 #define NFSMNT_TIMEO 0x00000008 /* set initial timeout */ 161 #define NFSMNT_RETRANS 0x00000010 /* set number of request retries */ 162 #define NFSMNT_MAXGRPS 0x00000020 /* set maximum grouplist size */ 163 #define NFSMNT_INT 0x00000040 /* allow interrupts on hard mount */ 164 #define NFSMNT_NOCONN 0x00000080 /* Don't Connect the socket */ 165 #define NFSMNT_NQNFS 0x00000100 /* Use Nqnfs protocol */ 166 #define NFSMNT_NFSV3 0x00000200 /* Use NFS Version 3 protocol */ 167 #define NFSMNT_KERB 0x00000400 /* Use Kerberos authentication */ 168 #define NFSMNT_DUMBTIMR 0x00000800 /* Don't estimate rtt dynamically */ 169 #define NFSMNT_LEASETERM 0x00001000 /* set lease term (nqnfs) */ 170 #define NFSMNT_READAHEAD 0x00002000 /* set read ahead */ 171 #define NFSMNT_DEADTHRESH 0x00004000 /* set dead server retry thresh */ 172 #define NFSMNT_RESVPORT 0x00008000 /* Allocate a reserved port */ 173 #define NFSMNT_RDIRPLUS 0x00010000 /* Use Readdirplus for V3 */ 174 #define NFSMNT_READDIRSIZE 0x00020000 /* Set readdir size */ 175 #define NFSMNT_INTERNAL 0xfffc0000 /* Bits set internally */ 176 #define NFSMNT_HASWRITEVERF 0x00040000 /* Has write verifier for V3 */ 177 #define NFSMNT_GOTPATHCONF 0x00080000 /* Got the V3 pathconf info */ 178 #define NFSMNT_GOTFSINFO 0x00100000 /* Got the V3 fsinfo */ 179 #define NFSMNT_MNTD 0x00200000 /* Mnt server for mnt point */ 180 #define NFSMNT_DISMINPROG 0x00400000 /* Dismount in progress */ 181 #define NFSMNT_DISMNT 0x00800000 /* Dismounted */ 182 #define NFSMNT_SNDLOCK 0x01000000 /* Send socket lock */ 183 #define NFSMNT_WANTSND 0x02000000 /* Want above */ 184 #define NFSMNT_RCVLOCK 0x04000000 /* Rcv socket lock */ 185 #define NFSMNT_WANTRCV 0x08000000 /* Want above */ 186 #define NFSMNT_WAITAUTH 0x10000000 /* Wait for authentication */ 187 #define NFSMNT_HASAUTH 0x20000000 /* Has authenticator */ 188 #define NFSMNT_WANTAUTH 0x40000000 /* Wants an authenticator */ 189 #define NFSMNT_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_long nsd_haddr; /* Ip address of client */ 205 struct ucred nsd_cr; /* Cred. uid maps to */ 206 int nsd_authlen; /* Length of auth string (ret) */ 207 u_char *nsd_authstr; /* Auth string (ret) */ 208 int nsd_verflen; /* and the verfier */ 209 u_char *nsd_verfstr; 210 struct timeval nsd_timestamp; /* timestamp from verifier */ 211 u_long 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 int ncd_authlen; /* Length of authenticator string */ 220 u_char *ncd_authstr; /* Authenticator string */ 221 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 }; 268 #endif 269 270 /* 271 * Flags for nfssvc() system call. 272 */ 273 #define NFSSVC_BIOD 0x002 274 #define NFSSVC_NFSD 0x004 275 #define NFSSVC_ADDSOCK 0x008 276 #define NFSSVC_AUTHIN 0x010 277 #define NFSSVC_GOTAUTH 0x040 278 #define NFSSVC_AUTHINFAIL 0x080 279 #define NFSSVC_MNTD 0x100 280 281 /* 282 * fs.nfs sysctl(3) identifiers 283 */ 284 #define NFS_NFSSTATS 1 /* struct: struct nfsstats */ 285 #define NFS_NFSPRIVPORT 2 /* int: prohibit nfs to resvports */ 286 287 #define FS_NFS_NAMES { \ 288 { 0, 0 }, \ 289 { "nfsstats", CTLTYPE_STRUCT }, \ 290 { "nfsprivport", CTLTYPE_INT }, \ 291 } 292 293 /* 294 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts. 295 * What should be in this set is open to debate, but I believe that since 296 * I/O system calls on ufs are never interrupted by signals the set should 297 * be minimal. My reasoning is that many current programs that use signals 298 * such as SIGALRM will not expect file I/O system calls to be interrupted 299 * by them and break. 300 */ 301 #ifdef KERNEL 302 303 struct uio; struct buf; struct vattr; struct nameidata; /* XXX */ 304 305 #define NFSINT_SIGMASK (sigmask(SIGINT)|sigmask(SIGTERM)|sigmask(SIGKILL)| \ 306 sigmask(SIGHUP)|sigmask(SIGQUIT)) 307 308 /* 309 * Socket errors ignored for connectionless sockets?? 310 * For now, ignore them all 311 */ 312 #define NFSIGNORE_SOERROR(s, e) \ 313 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \ 314 ((s) & PR_CONNREQUIRED) == 0) 315 316 /* 317 * Nfs outstanding request list element 318 */ 319 struct nfsreq { 320 TAILQ_ENTRY(nfsreq) r_chain; 321 struct mbuf *r_mreq; 322 struct mbuf *r_mrep; 323 struct mbuf *r_md; 324 caddr_t r_dpos; 325 struct nfsmount *r_nmp; 326 struct vnode *r_vp; 327 u_long r_xid; 328 int r_flags; /* flags on request, see below */ 329 int r_retry; /* max retransmission count */ 330 int r_rexmit; /* current retrans count */ 331 int r_timer; /* tick counter on reply */ 332 u_int32_t r_procnum; /* NFS procedure number */ 333 int r_rtt; /* RTT for rpc */ 334 struct proc *r_procp; /* Proc that did I/O system call */ 335 }; 336 337 /* 338 * Queue head for nfsreq's 339 */ 340 extern TAILQ_HEAD(nfs_reqq, nfsreq) nfs_reqq; 341 342 /* Flag values for r_flags */ 343 #define R_TIMING 0x01 /* timing request (in mntp) */ 344 #define R_SENT 0x02 /* request has been sent */ 345 #define R_SOFTTERM 0x04 /* soft mnt, too many retries */ 346 #define R_INTR 0x08 /* intr mnt, signal pending */ 347 #define R_SOCKERR 0x10 /* Fatal error on socket */ 348 #define R_TPRINTFMSG 0x20 /* Did a tprintf msg. */ 349 #define R_MUSTRESEND 0x40 /* Must resend request */ 350 #define R_GETONEREP 0x80 /* Probe for one reply only */ 351 352 /* 353 * A list of nfssvc_sock structures is maintained with all the sockets 354 * that require service by the nfsd. 355 * The nfsuid structs hang off of the nfssvc_sock structs in both lru 356 * and uid hash lists. 357 */ 358 #ifndef NFS_UIDHASHSIZ 359 #define NFS_UIDHASHSIZ 29 /* Tune the size of nfssvc_sock with this */ 360 #endif 361 #define NUIDHASH(sock, uid) \ 362 (&(sock)->ns_uidhashtbl[(uid) % NFS_UIDHASHSIZ]) 363 #ifndef NFS_WDELAYHASHSIZ 364 #define NFS_WDELAYHASHSIZ 16 /* and with this */ 365 #endif 366 #define NWDELAYHASH(sock, f) \ 367 (&(sock)->ns_wdelayhashtbl[(*((u_long *)(f))) % NFS_WDELAYHASHSIZ]) 368 #ifndef NFS_MUIDHASHSIZ 369 #define NFS_MUIDHASHSIZ 63 /* Tune the size of nfsmount with this */ 370 #endif 371 #define NMUIDHASH(nmp, uid) \ 372 (&(nmp)->nm_uidhashtbl[(uid) % NFS_MUIDHASHSIZ]) 373 #define NFSNOHASH(fhsum) \ 374 (&nfsnodehashtbl[(fhsum) & nfsnodehash]) 375 376 /* 377 * Network address hash list element 378 */ 379 union nethostaddr { 380 u_long had_inetaddr; 381 struct sockaddr *had_nam; 382 }; 383 384 struct nfsuid { 385 TAILQ_ENTRY(nfsuid) nu_lru; /* LRU chain */ 386 LIST_ENTRY(nfsuid) nu_hash; /* Hash list */ 387 int nu_flag; /* Flags */ 388 union nethostaddr nu_haddr; /* Host addr. for dgram sockets */ 389 struct ucred nu_cr; /* Cred uid mapped to */ 390 int nu_expire; /* Expiry time (sec) */ 391 struct timeval nu_timestamp; /* Kerb. timestamp */ 392 u_long nu_nickname; /* Nickname on server */ 393 NFSKERBKEY_T nu_key; /* and session key */ 394 }; 395 396 #define nu_inetaddr nu_haddr.had_inetaddr 397 #define nu_nam nu_haddr.had_nam 398 /* Bits for nu_flag */ 399 #define NU_INETADDR 0x1 400 #define NU_NAM 0x2 401 #define NU_NETFAM(u) (((u)->nu_flag & NU_INETADDR) ? AF_INET : AF_ISO) 402 403 struct nfsrv_rec { 404 STAILQ_ENTRY(nfsrv_rec) nr_link; 405 struct sockaddr *nr_address; 406 struct mbuf *nr_packet; 407 }; 408 409 struct nfssvc_sock { 410 TAILQ_ENTRY(nfssvc_sock) ns_chain; /* List of all nfssvc_sock's */ 411 TAILQ_HEAD(, nfsuid) ns_uidlruhead; 412 struct file *ns_fp; 413 struct socket *ns_so; 414 struct sockaddr *ns_nam; 415 struct mbuf *ns_raw; 416 struct mbuf *ns_rawend; 417 STAILQ_HEAD(, nfsrv_rec) ns_rec; 418 struct mbuf *ns_frag; 419 int ns_flag; 420 int ns_solock; 421 int ns_cc; 422 int ns_reclen; 423 int ns_numuids; 424 u_long ns_sref; 425 LIST_HEAD(, nfsrv_descript) ns_tq; /* Write gather lists */ 426 LIST_HEAD(, nfsuid) ns_uidhashtbl[NFS_UIDHASHSIZ]; 427 LIST_HEAD(nfsrvw_delayhash, nfsrv_descript) ns_wdelayhashtbl[NFS_WDELAYHASHSIZ]; 428 }; 429 430 /* Bits for "ns_flag" */ 431 #define SLP_VALID 0x01 432 #define SLP_DOREC 0x02 433 #define SLP_NEEDQ 0x04 434 #define SLP_DISCONN 0x08 435 #define SLP_GETSTREAM 0x10 436 #define SLP_LASTFRAG 0x20 437 #define SLP_ALLFLAGS 0xff 438 439 extern TAILQ_HEAD(nfssvc_sockhead, nfssvc_sock) nfssvc_sockhead; 440 extern int nfssvc_sockhead_flag; 441 #define SLP_INIT 0x01 442 #define SLP_WANTINIT 0x02 443 444 /* 445 * One of these structures is allocated for each nfsd. 446 */ 447 struct nfsd { 448 TAILQ_ENTRY(nfsd) nfsd_chain; /* List of all nfsd's */ 449 int nfsd_flag; /* NFSD_ flags */ 450 struct nfssvc_sock *nfsd_slp; /* Current socket */ 451 int nfsd_authlen; /* Authenticator len */ 452 u_char nfsd_authstr[RPCAUTH_MAXSIZ]; /* Authenticator data */ 453 int nfsd_verflen; /* and the Verifier */ 454 u_char nfsd_verfstr[RPCVERF_MAXSIZ]; 455 struct proc *nfsd_procp; /* Proc ptr */ 456 struct nfsrv_descript *nfsd_nd; /* Associated nfsrv_descript */ 457 }; 458 459 /* Bits for "nfsd_flag" */ 460 #define NFSD_WAITING 0x01 461 #define NFSD_REQINPROG 0x02 462 #define NFSD_NEEDAUTH 0x04 463 #define NFSD_AUTHFAIL 0x08 464 465 /* 466 * This structure is used by the server for describing each request. 467 * Some fields are used only when write request gathering is performed. 468 */ 469 struct nfsrv_descript { 470 u_quad_t nd_time; /* Write deadline (usec) */ 471 off_t nd_off; /* Start byte offset */ 472 off_t nd_eoff; /* and end byte offset */ 473 LIST_ENTRY(nfsrv_descript) nd_hash; /* Hash list */ 474 LIST_ENTRY(nfsrv_descript) nd_tq; /* and timer list */ 475 LIST_HEAD(,nfsrv_descript) nd_coalesce; /* coalesced writes */ 476 struct mbuf *nd_mrep; /* Request mbuf list */ 477 struct mbuf *nd_md; /* Current dissect mbuf */ 478 struct mbuf *nd_mreq; /* Reply mbuf list */ 479 struct sockaddr *nd_nam; /* and socket addr */ 480 struct sockaddr *nd_nam2; /* return socket addr */ 481 caddr_t nd_dpos; /* Current dissect pos */ 482 u_int32_t nd_procnum; /* RPC # */ 483 int nd_stable; /* storage type */ 484 int nd_flag; /* nd_flag */ 485 int nd_len; /* Length of this write */ 486 int nd_repstat; /* Reply status */ 487 u_long nd_retxid; /* Reply xid */ 488 u_long nd_duration; /* Lease duration */ 489 struct timeval nd_starttime; /* Time RPC initiated */ 490 fhandle_t nd_fh; /* File handle */ 491 struct ucred nd_cr; /* Credentials */ 492 }; 493 494 /* Bits for "nd_flag" */ 495 #define ND_READ LEASE_READ 496 #define ND_WRITE LEASE_WRITE 497 #define ND_CHECK 0x04 498 #define ND_LEASE (ND_READ | ND_WRITE | ND_CHECK) 499 #define ND_NFSV3 0x08 500 #define ND_NQNFS 0x10 501 #define ND_KERBNICK 0x20 502 #define ND_KERBFULL 0x40 503 #define ND_KERBAUTH (ND_KERBNICK | ND_KERBFULL) 504 505 extern TAILQ_HEAD(nfsd_head, nfsd) nfsd_head; 506 extern int nfsd_head_flag; 507 #define NFSD_CHECKSLP 0x01 508 509 /* 510 * These macros compare nfsrv_descript structures. 511 */ 512 #define NFSW_CONTIG(o, n) \ 513 ((o)->nd_eoff >= (n)->nd_off && \ 514 !bcmp((caddr_t)&(o)->nd_fh, (caddr_t)&(n)->nd_fh, NFSX_V3FH)) 515 516 #define NFSW_SAMECRED(o, n) \ 517 (((o)->nd_flag & ND_KERBAUTH) == ((n)->nd_flag & ND_KERBAUTH) && \ 518 !bcmp((caddr_t)&(o)->nd_cr, (caddr_t)&(n)->nd_cr, \ 519 sizeof (struct ucred))) 520 521 /* 522 * Defines for WebNFS 523 */ 524 525 #define WEBNFS_ESC_CHAR '%' 526 #define WEBNFS_SPECCHAR_START 0x80 527 528 #define WEBNFS_NATIVE_CHAR 0x80 529 /* 530 * .. 531 * Possibly more here in the future. 532 */ 533 534 /* 535 * Macro for converting escape characters in WebNFS pathnames. 536 * Should really be in libkern. 537 */ 538 539 #define HEXTOC(c) \ 540 ((c) >= 'a' ? ((c) - ('a' - 10)) : \ 541 ((c) >= 'A' ? ((c) - ('A' - 10)) : ((c) - '0'))) 542 #define HEXSTRTOI(p) \ 543 ((HEXTOC(p[0]) << 4) + HEXTOC(p[1])) 544 545 #ifdef NFS_DEBUG 546 547 extern int nfs_debug; 548 #define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */ 549 #define NFS_DEBUG_WG 2 /* server write gathering */ 550 #define NFS_DEBUG_RC 4 /* server request caching */ 551 552 #define NFS_DPF(cat, args) \ 553 do { \ 554 if (nfs_debug & NFS_DEBUG_##cat) printf args; \ 555 } while (0) 556 557 #else 558 559 #define NFS_DPF(cat, args) 560 561 #endif 562 563 int nfs_init __P((struct vfsconf *vfsp)); 564 int nfs_reply __P((struct nfsreq *)); 565 int nfs_getreq __P((struct nfsrv_descript *,struct nfsd *,int)); 566 int nfs_send __P((struct socket *, struct sockaddr *, struct mbuf *, 567 struct nfsreq *)); 568 int nfs_rephead __P((int, struct nfsrv_descript *, struct nfssvc_sock *, 569 int, int, u_quad_t *, struct mbuf **, struct mbuf **, 570 caddr_t *)); 571 int nfs_sndlock __P((int *, struct nfsreq *)); 572 void nfs_sndunlock __P((int *flagp)); 573 int nfs_disct __P((struct mbuf **, caddr_t *, int, int, caddr_t *)); 574 int nfs_vinvalbuf __P((struct vnode *, int, struct ucred *, struct proc *, 575 int)); 576 int nfs_readrpc __P((struct vnode *, struct uio *, struct ucred *)); 577 int nfs_writerpc __P((struct vnode *, struct uio *, struct ucred *, int *, 578 int *)); 579 int nfs_readdirrpc __P((struct vnode *, struct uio *, struct ucred *)); 580 int nfs_asyncio __P((struct buf *, struct ucred *)); 581 int nfs_doio __P((struct buf *, struct ucred *, struct proc *)); 582 int nfs_readlinkrpc __P((struct vnode *, struct uio *, struct ucred *)); 583 int nfs_sigintr __P((struct nfsmount *, struct nfsreq *, struct proc *)); 584 int nfs_readdirplusrpc __P((struct vnode *, struct uio *, struct ucred *)); 585 int nfsm_disct __P((struct mbuf **, caddr_t *, int, int, caddr_t *)); 586 void nfsm_srvfattr __P((struct nfsrv_descript *, struct vattr *, 587 struct nfs_fattr *)); 588 void nfsm_srvwcc __P((struct nfsrv_descript *, int, struct vattr *, int, 589 struct vattr *, struct mbuf **, char **)); 590 void nfsm_srvpostopattr __P((struct nfsrv_descript *, int, struct vattr *, 591 struct mbuf **, char **)); 592 int netaddr_match __P((int, union nethostaddr *, struct sockaddr *)); 593 int nfs_request __P((struct vnode *, struct mbuf *, int, struct proc *, 594 struct ucred *, struct mbuf **, struct mbuf **, 595 caddr_t *)); 596 int nfs_loadattrcache __P((struct vnode **, struct mbuf **, caddr_t *, 597 struct vattr *)); 598 int nfs_namei __P((struct nameidata *, fhandle_t *, int, 599 struct nfssvc_sock *, struct sockaddr *, struct mbuf **, 600 caddr_t *, struct vnode **, struct proc *, int, int)); 601 void nfsm_adj __P((struct mbuf *, int, int)); 602 int nfsm_mbuftouio __P((struct mbuf **, struct uio *, int, caddr_t *)); 603 void nfsrv_initcache __P((void)); 604 int nfs_getauth __P((struct nfsmount *, struct nfsreq *, struct ucred *, 605 char **, int *, char *, int *, NFSKERBKEY_T)); 606 int nfs_getnickauth __P((struct nfsmount *, struct ucred *, char **, 607 int *, char *, int)); 608 int nfs_savenickauth __P((struct nfsmount *, struct ucred *, int, 609 NFSKERBKEY_T, struct mbuf **, char **, 610 struct mbuf *)); 611 int nfs_adv __P((struct mbuf **, caddr_t *, int, int)); 612 void nfs_nhinit __P((void)); 613 void nfs_timer __P((void*)); 614 u_long nfs_hash __P((nfsfh_t *, int)); 615 int nfsrv_dorec __P((struct nfssvc_sock *, struct nfsd *, 616 struct nfsrv_descript **)); 617 int nfsrv_getcache __P((struct nfsrv_descript *, struct nfssvc_sock *, 618 struct mbuf **)); 619 void nfsrv_updatecache __P((struct nfsrv_descript *, int, struct mbuf *)); 620 void nfsrv_cleancache __P((void)); 621 int nfs_connect __P((struct nfsmount *, struct nfsreq *)); 622 void nfs_disconnect __P((struct nfsmount *)); 623 int nfs_getattrcache __P((struct vnode *, struct vattr *)); 624 int nfsm_strtmbuf __P((struct mbuf **, char **, char *, long)); 625 int nfs_bioread __P((struct vnode *, struct uio *, int, struct ucred *, 626 int)); 627 int nfsm_uiotombuf __P((struct uio *, struct mbuf **, int, caddr_t *)); 628 void nfsrv_init __P((int)); 629 void nfs_clearcommit __P((struct mount *)); 630 int nfsrv_errmap __P((struct nfsrv_descript *, int)); 631 void nfsrvw_sort __P((gid_t *, int)); 632 void nfsrv_setcred __P((struct ucred *, struct ucred *)); 633 int nfs_writebp __P((struct buf *, int)); 634 int nfsrv_object_create __P((struct vnode *)); 635 void nfsrv_wakenfsd __P((struct nfssvc_sock *slp)); 636 int nfsrv_writegather __P((struct nfsrv_descript **, struct nfssvc_sock *, 637 struct proc *, struct mbuf **)); 638 int nfs_fsinfo __P((struct nfsmount *, struct vnode *, struct ucred *, 639 struct proc *p)); 640 641 int nfsrv3_access __P((struct nfsrv_descript *nfsd, 642 struct nfssvc_sock *slp, 643 struct proc *procp, struct mbuf **mrq)); 644 int nfsrv_commit __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 645 struct proc *procp, struct mbuf **mrq)); 646 int nfsrv_create __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 647 struct proc *procp, struct mbuf **mrq)); 648 int nfsrv_fhtovp __P((fhandle_t *, int, struct vnode **, struct ucred *, 649 struct nfssvc_sock *, struct sockaddr *, int *, 650 int, int)); 651 int nfsrv_setpublicfs __P((struct mount *, struct netexport *, 652 struct export_args *)); 653 int nfs_ispublicfh __P((fhandle_t *)); 654 int nfsrv_fsinfo __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 655 struct proc *procp, struct mbuf **mrq)); 656 int nfsrv_getattr __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 657 struct proc *procp, struct mbuf **mrq)); 658 int nfsrv_link __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 659 struct proc *procp, struct mbuf **mrq)); 660 int nfsrv_lookup __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 661 struct proc *procp, struct mbuf **mrq)); 662 int nfsrv_mkdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 663 struct proc *procp, struct mbuf **mrq)); 664 int nfsrv_mknod __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 665 struct proc *procp, struct mbuf **mrq)); 666 int nfsrv_noop __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 667 struct proc *procp, struct mbuf **mrq)); 668 int nfsrv_null __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 669 struct proc *procp, struct mbuf **mrq)); 670 int nfsrv_pathconf __P((struct nfsrv_descript *nfsd, 671 struct nfssvc_sock *slp, struct proc *procp, 672 struct mbuf **mrq)); 673 int nfsrv_read __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 674 struct proc *procp, struct mbuf **mrq)); 675 int nfsrv_readdir __P((struct nfsrv_descript *nfsd, 676 struct nfssvc_sock *slp, 677 struct proc *procp, struct mbuf **mrq)); 678 int nfsrv_readdirplus __P((struct nfsrv_descript *nfsd, 679 struct nfssvc_sock *slp, struct proc *procp, 680 struct mbuf **mrq)); 681 int nfsrv_readlink __P((struct nfsrv_descript *nfsd, 682 struct nfssvc_sock *slp, struct proc *procp, 683 struct mbuf **mrq)); 684 int nfsrv_remove __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 685 struct proc *procp, struct mbuf **mrq)); 686 int nfsrv_rename __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 687 struct proc *procp, struct mbuf **mrq)); 688 int nfsrv_rmdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 689 struct proc *procp, struct mbuf **mrq)); 690 int nfsrv_setattr __P((struct nfsrv_descript *nfsd, 691 struct nfssvc_sock *slp, 692 struct proc *procp, struct mbuf **mrq)); 693 int nfsrv_statfs __P((struct nfsrv_descript *nfsd, 694 struct nfssvc_sock *slp, 695 struct proc *procp, struct mbuf **mrq)); 696 int nfsrv_symlink __P((struct nfsrv_descript *nfsd, 697 struct nfssvc_sock *slp, 698 struct proc *procp, struct mbuf **mrq)); 699 int nfsrv_write __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 700 struct proc *procp, struct mbuf **mrq)); 701 void nfsrv_rcv __P((struct socket *so, caddr_t arg, int waitflag)); 702 void nfsrv_slpderef __P((struct nfssvc_sock *slp)); 703 #endif /* KERNEL */ 704 705 #endif 706