| 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 1.3 2003/06/25 03:56:07 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 | /* |
| 49 | * Tunable constants for nfs |
| 50 | */ |
| 51 | |
| 52 | #define NFS_MAXIOVEC 34 |
| 53 | #define NFS_TICKINTVL 5 /* Desired time for a tick (msec) */ |
| 54 | #define NFS_HZ (hz / nfs_ticks) /* Ticks/sec */ |
| 55 | #define NFS_TIMEO (1 * NFS_HZ) /* Default timeout = 1 second */ |
| 56 | #define NFS_MINTIMEO (1 * NFS_HZ) /* Min timeout to use */ |
| 57 | #define NFS_MAXTIMEO (60 * NFS_HZ) /* Max timeout to backoff to */ |
| 58 | #define NFS_MINIDEMTIMEO (5 * NFS_HZ) /* Min timeout for non-idempotent ops*/ |
| 59 | #define NFS_MAXREXMIT 100 /* Stop counting after this many */ |
| 60 | #define NFS_MAXWINDOW 1024 /* Max number of outstanding requests */ |
| 61 | #define NFS_RETRANS 10 /* Num of retrans for soft mounts */ |
| 62 | #define NFS_MAXGRPS 16 /* Max. size of groups list */ |
| 63 | #ifndef NFS_MINATTRTIMO |
| 64 | #define NFS_MINATTRTIMO 3 /* VREG attrib cache timeout in sec */ |
| 65 | #endif |
| 66 | #ifndef NFS_MAXATTRTIMO |
| 67 | #define NFS_MAXATTRTIMO 60 |
| 68 | #endif |
| 69 | #ifndef NFS_MINDIRATTRTIMO |
| 70 | #define NFS_MINDIRATTRTIMO 30 /* VDIR attrib cache timeout in sec */ |
| 71 | #endif |
| 72 | #ifndef NFS_MAXDIRATTRTIMO |
| 73 | #define NFS_MAXDIRATTRTIMO 60 |
| 74 | #endif |
| 75 | #define NFS_WSIZE 8192 /* Def. write data size <= 8192 */ |
| 76 | #define NFS_RSIZE 8192 /* Def. read data size <= 8192 */ |
| 77 | #define NFS_READDIRSIZE 8192 /* Def. readdir size */ |
| 78 | #define NFS_DEFRAHEAD 1 /* Def. read ahead # blocks */ |
| 79 | #define NFS_MAXRAHEAD 4 /* Max. read ahead # blocks */ |
| 80 | #define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */ |
| 81 | #define NFS_MAXASYNCDAEMON 20 /* Max. number async_daemons runnable */ |
| 82 | #define NFS_MAXGATHERDELAY 100 /* Max. write gather delay (msec) */ |
| 83 | #ifndef NFS_GATHERDELAY |
| 84 | #define NFS_GATHERDELAY 10 /* Default write gather delay (msec) */ |
| 85 | #endif |
| 86 | #define NFS_DIRBLKSIZ 4096 /* Must be a multiple of DIRBLKSIZ */ |
| 87 | #ifdef _KERNEL |
| 88 | #define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */ |
| 89 | #endif |
| 90 | |
| 91 | /* |
| 92 | * Oddballs |
| 93 | */ |
| 94 | #define NMOD(a) ((a) % nfs_asyncdaemons) |
| 95 | #define NFS_CMPFH(n, f, s) \ |
| 96 | ((n)->n_fhsize == (s) && !bcmp((caddr_t)(n)->n_fhp, (caddr_t)(f), (s))) |
| 97 | #define NFS_ISV3(v) (VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV3) |
| 98 | #define NFS_SRVMAXDATA(n) \ |
| 99 | (((n)->nd_flag & ND_NFSV3) ? (((n)->nd_nam2) ? \ |
| 100 | NFS_MAXDGRAMDATA : NFS_MAXDATA) : NFS_V2MAXDATA) |
| 101 | |
| 102 | /* |
| 103 | * XXX |
| 104 | * The B_INVAFTERWRITE flag should be set to whatever is required by the |
| 105 | * buffer cache code to say "Invalidate the block after it is written back". |
| 106 | */ |
| 107 | #define B_INVAFTERWRITE B_NOCACHE |
| 108 | |
| 109 | /* |
| 110 | * The IO_METASYNC flag should be implemented for local file systems. |
| 111 | * (Until then, it is nothin at all.) |
| 112 | */ |
| 113 | #ifndef IO_METASYNC |
| 114 | #define IO_METASYNC 0 |
| 115 | #endif |
| 116 | |
| 117 | /* |
| 118 | * Arguments to mount NFS |
| 119 | */ |
| 120 | #define NFS_ARGSVERSION 3 /* change when nfs_args changes */ |
| 121 | struct nfs_args { |
| 122 | int version; /* args structure version number */ |
| 123 | struct sockaddr *addr; /* file server address */ |
| 124 | int addrlen; /* length of address */ |
| 125 | int sotype; /* Socket type */ |
| 126 | int proto; /* and Protocol */ |
| 127 | u_char *fh; /* File handle to be mounted */ |
| 128 | int fhsize; /* Size, in bytes, of fh */ |
| 129 | int flags; /* flags */ |
| 130 | int wsize; /* write size in bytes */ |
| 131 | int rsize; /* read size in bytes */ |
| 132 | int readdirsize; /* readdir size in bytes */ |
| 133 | int timeo; /* initial timeout in .1 secs */ |
| 134 | int retrans; /* times to retry send */ |
| 135 | int maxgrouplist; /* Max. size of group list */ |
| 136 | int readahead; /* # of blocks to readahead */ |
| 137 | int leaseterm; /* Term (sec) of lease */ |
| 138 | int deadthresh; /* Retrans threshold */ |
| 139 | char *hostname; /* server's name */ |
| 140 | int acregmin; /* cache attrs for reg files min time */ |
| 141 | int acregmax; /* cache attrs for reg files max time */ |
| 142 | int acdirmin; /* cache attrs for dirs min time */ |
| 143 | int acdirmax; /* cache attrs for dirs max time */ |
| 144 | }; |
| 145 | |
| 146 | /* |
| 147 | * NFS mount option flags |
| 148 | */ |
| 149 | #define NFSMNT_SOFT 0x00000001 /* soft mount (hard is default) */ |
| 150 | #define NFSMNT_WSIZE 0x00000002 /* set write size */ |
| 151 | #define NFSMNT_RSIZE 0x00000004 /* set read size */ |
| 152 | #define NFSMNT_TIMEO 0x00000008 /* set initial timeout */ |
| 153 | #define NFSMNT_RETRANS 0x00000010 /* set number of request retries */ |
| 154 | #define NFSMNT_MAXGRPS 0x00000020 /* set maximum grouplist size */ |
| 155 | #define NFSMNT_INT 0x00000040 /* allow interrupts on hard mount */ |
| 156 | #define NFSMNT_NOCONN 0x00000080 /* Don't Connect the socket */ |
| 157 | #define NFSMNT_NQNFS 0x00000100 /* Use Nqnfs protocol */ |
| 158 | #define NFSMNT_NFSV3 0x00000200 /* Use NFS Version 3 protocol */ |
| 159 | #define NFSMNT_KERB 0x00000400 /* Use Kerberos authentication */ |
| 160 | #define NFSMNT_DUMBTIMR 0x00000800 /* Don't estimate rtt dynamically */ |
| 161 | #define NFSMNT_LEASETERM 0x00001000 /* set lease term (nqnfs) */ |
| 162 | #define NFSMNT_READAHEAD 0x00002000 /* set read ahead */ |
| 163 | #define NFSMNT_DEADTHRESH 0x00004000 /* set dead server retry thresh */ |
| 164 | #define NFSMNT_RESVPORT 0x00008000 /* Allocate a reserved port */ |
| 165 | #define NFSMNT_RDIRPLUS 0x00010000 /* Use Readdirplus for V3 */ |
| 166 | #define NFSMNT_READDIRSIZE 0x00020000 /* Set readdir size */ |
| 167 | #define NFSMNT_ACREGMIN 0x00040000 |
| 168 | #define NFSMNT_ACREGMAX 0x00080000 |
| 169 | #define NFSMNT_ACDIRMIN 0x00100000 |
| 170 | #define NFSMNT_ACDIRMAX 0x00200000 |
| 171 | |
| 172 | #define NFSSTA_HASWRITEVERF 0x00040000 /* Has write verifier for V3 */ |
| 173 | #define NFSSTA_GOTPATHCONF 0x00080000 /* Got the V3 pathconf info */ |
| 174 | #define NFSSTA_GOTFSINFO 0x00100000 /* Got the V3 fsinfo */ |
| 175 | #define NFSSTA_MNTD 0x00200000 /* Mnt server for mnt point */ |
| 176 | #define NFSSTA_DISMINPROG 0x00400000 /* Dismount in progress */ |
| 177 | #define NFSSTA_DISMNT 0x00800000 /* Dismounted */ |
| 178 | #define NFSSTA_SNDLOCK 0x01000000 /* Send socket lock */ |
| 179 | #define NFSSTA_WANTSND 0x02000000 /* Want above */ |
| 180 | #define NFSSTA_RCVLOCK 0x04000000 /* Rcv socket lock */ |
| 181 | #define NFSSTA_WANTRCV 0x08000000 /* Want above */ |
| 182 | #define NFSSTA_WAITAUTH 0x10000000 /* Wait for authentication */ |
| 183 | #define NFSSTA_HASAUTH 0x20000000 /* Has authenticator */ |
| 184 | #define NFSSTA_WANTAUTH 0x40000000 /* Wants an authenticator */ |
| 185 | #define NFSSTA_AUTHERR 0x80000000 /* Authentication error */ |
| 186 | |
| 187 | /* |
| 188 | * Structures for the nfssvc(2) syscall. Not that anyone but nfsd and mount_nfs |
| 189 | * should ever try and use it. |
| 190 | */ |
| 191 | struct nfsd_args { |
| 192 | int sock; /* Socket to serve */ |
| 193 | caddr_t name; /* Client addr for connection based sockets */ |
| 194 | int namelen; /* Length of name */ |
| 195 | }; |
| 196 | |
| 197 | struct nfsd_srvargs { |
| 198 | struct nfsd *nsd_nfsd; /* Pointer to in kernel nfsd struct */ |
| 199 | uid_t nsd_uid; /* Effective uid mapped to cred */ |
| 200 | u_int32_t nsd_haddr; /* Ip address of client */ |
| 201 | struct ucred nsd_cr; /* Cred. uid maps to */ |
| 202 | u_int nsd_authlen; /* Length of auth string (ret) */ |
| 203 | u_char *nsd_authstr; /* Auth string (ret) */ |
| 204 | u_int nsd_verflen; /* and the verfier */ |
| 205 | u_char *nsd_verfstr; |
| 206 | struct timeval nsd_timestamp; /* timestamp from verifier */ |
| 207 | u_int32_t nsd_ttl; /* credential ttl (sec) */ |
| 208 | NFSKERBKEY_T nsd_key; /* Session key */ |
| 209 | }; |
| 210 | |
| 211 | struct nfsd_cargs { |
| 212 | char *ncd_dirp; /* Mount dir path */ |
| 213 | uid_t ncd_authuid; /* Effective uid */ |
| 214 | int ncd_authtype; /* Type of authenticator */ |
| 215 | u_int ncd_authlen; /* Length of authenticator string */ |
| 216 | u_char *ncd_authstr; /* Authenticator string */ |
| 217 | u_int ncd_verflen; /* and the verifier */ |
| 218 | u_char *ncd_verfstr; |
| 219 | NFSKERBKEY_T ncd_key; /* Session key */ |
| 220 | }; |
| 221 | |
| 222 | /* |
| 223 | * XXX to allow amd to include nfs.h without nfsproto.h |
| 224 | */ |
| 225 | #ifdef NFS_NPROCS |
| 226 | /* |
| 227 | * Stats structure |
| 228 | */ |
| 229 | struct nfsstats { |
| 230 | int attrcache_hits; |
| 231 | int attrcache_misses; |
| 232 | int lookupcache_hits; |
| 233 | int lookupcache_misses; |
| 234 | int direofcache_hits; |
| 235 | int direofcache_misses; |
| 236 | int biocache_reads; |
| 237 | int read_bios; |
| 238 | int read_physios; |
| 239 | int biocache_writes; |
| 240 | int write_bios; |
| 241 | int write_physios; |
| 242 | int biocache_readlinks; |
| 243 | int readlink_bios; |
| 244 | int biocache_readdirs; |
| 245 | int readdir_bios; |
| 246 | int rpccnt[NFS_NPROCS]; |
| 247 | int rpcretries; |
| 248 | int srvrpccnt[NFS_NPROCS]; |
| 249 | int srvrpc_errs; |
| 250 | int srv_errs; |
| 251 | int rpcrequests; |
| 252 | int rpctimeouts; |
| 253 | int rpcunexpected; |
| 254 | int rpcinvalid; |
| 255 | int srvcache_inproghits; |
| 256 | int srvcache_idemdonehits; |
| 257 | int srvcache_nonidemdonehits; |
| 258 | int srvcache_misses; |
| 259 | int srvnqnfs_leases; |
| 260 | int srvnqnfs_maxleases; |
| 261 | int srvnqnfs_getleases; |
| 262 | int srvvop_writes; |
| 263 | int accesscache_hits; |
| 264 | int accesscache_misses; |
| 265 | }; |
| 266 | #endif |
| 267 | |
| 268 | /* |
| 269 | * Flags for nfssvc() system call. |
| 270 | */ |
| 271 | #define NFSSVC_BIOD 0x002 |
| 272 | #define NFSSVC_NFSD 0x004 |
| 273 | #define NFSSVC_ADDSOCK 0x008 |
| 274 | #define NFSSVC_AUTHIN 0x010 |
| 275 | #define NFSSVC_GOTAUTH 0x040 |
| 276 | #define NFSSVC_AUTHINFAIL 0x080 |
| 277 | #define NFSSVC_MNTD 0x100 |
| 278 | |
| 279 | /* |
| 280 | * fs.nfs sysctl(3) identifiers |
| 281 | */ |
| 282 | #define NFS_NFSSTATS 1 /* struct: struct nfsstats */ |
| 283 | #define NFS_NFSPRIVPORT 2 /* int: prohibit nfs to resvports */ |
| 284 | |
| 285 | #define FS_NFS_NAMES { \ |
| 286 | { 0, 0 }, \ |
| 287 | { "nfsstats", CTLTYPE_STRUCT }, \ |
| 288 | { "nfsprivport", CTLTYPE_INT }, \ |
| 289 | } |
| 290 | |
| 291 | #ifdef _KERNEL |
| 292 | |
| 293 | #ifdef MALLOC_DECLARE |
| 294 | MALLOC_DECLARE(M_NFSREQ); |
| 295 | MALLOC_DECLARE(M_NFSDIROFF); |
| 296 | MALLOC_DECLARE(M_NFSRVDESC); |
| 297 | MALLOC_DECLARE(M_NFSUID); |
| 298 | MALLOC_DECLARE(M_NQLEASE); |
| 299 | MALLOC_DECLARE(M_NFSD); |
| 300 | MALLOC_DECLARE(M_NFSBIGFH); |
| 301 | MALLOC_DECLARE(M_NFSHASH); |
| 302 | #endif |
| 303 | |
| 304 | #ifdef ZONE_INTERRUPT |
| 305 | extern vm_zone_t nfsmount_zone; |
| 306 | #endif |
| 307 | |
| 308 | extern struct callout_handle nfs_timer_handle; |
| 309 | |
| 310 | struct uio; struct buf; struct vattr; struct nameidata; /* XXX */ |
| 311 | |
| 312 | /* |
| 313 | * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts. |
| 314 | * What should be in this set is open to debate, but I believe that since |
| 315 | * I/O system calls on ufs are never interrupted by signals the set should |
| 316 | * be minimal. My reasoning is that many current programs that use signals |
| 317 | * such as SIGALRM will not expect file I/O system calls to be interrupted |
| 318 | * by them and break. |
| 319 | */ |
| 320 | #define NFSINT_SIGMASK(set) \ |
| 321 | (SIGISMEMBER(set, SIGINT) || SIGISMEMBER(set, SIGTERM) || \ |
| 322 | SIGISMEMBER(set, SIGHUP) || SIGISMEMBER(set, SIGKILL) || \ |
| 323 | SIGISMEMBER(set, SIGQUIT)) |
| 324 | |
| 325 | /* |
| 326 | * Socket errors ignored for connectionless sockets?? |
| 327 | * For now, ignore them all |
| 328 | */ |
| 329 | #define NFSIGNORE_SOERROR(s, e) \ |
| 330 | ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \ |
| 331 | ((s) & PR_CONNREQUIRED) == 0) |
| 332 | |
| 333 | /* |
| 334 | * Nfs outstanding request list element |
| 335 | */ |
| 336 | struct nfsreq { |
| 337 | TAILQ_ENTRY(nfsreq) r_chain; |
| 338 | struct mbuf *r_mreq; |
| 339 | struct mbuf *r_mrep; |
| 340 | struct mbuf *r_md; |
| 341 | caddr_t r_dpos; |
| 342 | struct nfsmount *r_nmp; |
| 343 | struct vnode *r_vp; |
| 344 | u_int32_t r_xid; |
| 345 | int r_flags; /* flags on request, see below */ |
| 346 | int r_retry; /* max retransmission count */ |
| 347 | int r_rexmit; /* current retrans count */ |
| 348 | int r_timer; /* tick counter on reply */ |
| 349 | u_int32_t r_procnum; /* NFS procedure number */ |
| 350 | int r_rtt; /* RTT for rpc */ |
| 351 | struct thread *r_td; /* Thread that did I/O system call */ |
| 352 | }; |
| 353 | |
| 354 | /* |
| 355 | * Queue head for nfsreq's |
| 356 | */ |
| 357 | extern TAILQ_HEAD(nfs_reqq, nfsreq) nfs_reqq; |
| 358 | |
| 359 | /* Flag values for r_flags */ |
| 360 | #define R_TIMING 0x01 /* timing request (in mntp) */ |
| 361 | #define R_SENT 0x02 /* request has been sent */ |
| 362 | #define R_SOFTTERM 0x04 /* soft mnt, too many retries */ |
| 363 | #define R_INTR 0x08 /* intr mnt, signal pending */ |
| 364 | #define R_SOCKERR 0x10 /* Fatal error on socket */ |
| 365 | #define R_TPRINTFMSG 0x20 /* Did a tprintf msg. */ |
| 366 | #define R_MUSTRESEND 0x40 /* Must resend request */ |
| 367 | #define R_GETONEREP 0x80 /* Probe for one reply only */ |
| 368 | |
| 369 | /* |
| 370 | * A list of nfssvc_sock structures is maintained with all the sockets |
| 371 | * that require service by the nfsd. |
| 372 | * The nfsuid structs hang off of the nfssvc_sock structs in both lru |
| 373 | * and uid hash lists. |
| 374 | */ |
| 375 | #ifndef NFS_UIDHASHSIZ |
| 376 | #define NFS_UIDHASHSIZ 29 /* Tune the size of nfssvc_sock with this */ |
| 377 | #endif |
| 378 | #define NUIDHASH(sock, uid) \ |
| 379 | (&(sock)->ns_uidhashtbl[(uid) % NFS_UIDHASHSIZ]) |
| 380 | #ifndef NFS_WDELAYHASHSIZ |
| 381 | #define NFS_WDELAYHASHSIZ 16 /* and with this */ |
| 382 | #endif |
| 383 | #define NWDELAYHASH(sock, f) \ |
| 384 | (&(sock)->ns_wdelayhashtbl[(*((u_int32_t *)(f))) % NFS_WDELAYHASHSIZ]) |
| 385 | #ifndef NFS_MUIDHASHSIZ |
| 386 | #define NFS_MUIDHASHSIZ 63 /* Tune the size of nfsmount with this */ |
| 387 | #endif |
| 388 | #define NMUIDHASH(nmp, uid) \ |
| 389 | (&(nmp)->nm_uidhashtbl[(uid) % NFS_MUIDHASHSIZ]) |
| 390 | #define NFSNOHASH(fhsum) \ |
| 391 | (&nfsnodehashtbl[(fhsum) & nfsnodehash]) |
| 392 | |
| 393 | /* |
| 394 | * Network address hash list element |
| 395 | */ |
| 396 | union nethostaddr { |
| 397 | u_int32_t had_inetaddr; |
| 398 | struct sockaddr *had_nam; |
| 399 | }; |
| 400 | |
| 401 | struct nfsuid { |
| 402 | TAILQ_ENTRY(nfsuid) nu_lru; /* LRU chain */ |
| 403 | LIST_ENTRY(nfsuid) nu_hash; /* Hash list */ |
| 404 | int nu_flag; /* Flags */ |
| 405 | union nethostaddr nu_haddr; /* Host addr. for dgram sockets */ |
| 406 | struct ucred nu_cr; /* Cred uid mapped to */ |
| 407 | int nu_expire; /* Expiry time (sec) */ |
| 408 | struct timeval nu_timestamp; /* Kerb. timestamp */ |
| 409 | u_int32_t nu_nickname; /* Nickname on server */ |
| 410 | NFSKERBKEY_T nu_key; /* and session key */ |
| 411 | }; |
| 412 | |
| 413 | #define nu_inetaddr nu_haddr.had_inetaddr |
| 414 | #define nu_nam nu_haddr.had_nam |
| 415 | /* Bits for nu_flag */ |
| 416 | #define NU_INETADDR 0x1 |
| 417 | #define NU_NAM 0x2 |
| 418 | #define NU_NETFAM(u) (((u)->nu_flag & NU_INETADDR) ? AF_INET : AF_ISO) |
| 419 | |
| 420 | struct nfsrv_rec { |
| 421 | STAILQ_ENTRY(nfsrv_rec) nr_link; |
| 422 | struct sockaddr *nr_address; |
| 423 | struct mbuf *nr_packet; |
| 424 | }; |
| 425 | |
| 426 | struct nfssvc_sock { |
| 427 | TAILQ_ENTRY(nfssvc_sock) ns_chain; /* List of all nfssvc_sock's */ |
| 428 | TAILQ_HEAD(, nfsuid) ns_uidlruhead; |
| 429 | struct file *ns_fp; |
| 430 | struct socket *ns_so; |
| 431 | struct sockaddr *ns_nam; |
| 432 | struct mbuf *ns_raw; |
| 433 | struct mbuf *ns_rawend; |
| 434 | STAILQ_HEAD(, nfsrv_rec) ns_rec; |
| 435 | struct mbuf *ns_frag; |
| 436 | int ns_flag; |
| 437 | int ns_solock; |
| 438 | int ns_cc; |
| 439 | int ns_reclen; |
| 440 | int ns_numuids; |
| 441 | u_int32_t ns_sref; |
| 442 | LIST_HEAD(, nfsrv_descript) ns_tq; /* Write gather lists */ |
| 443 | LIST_HEAD(, nfsuid) ns_uidhashtbl[NFS_UIDHASHSIZ]; |
| 444 | LIST_HEAD(nfsrvw_delayhash, nfsrv_descript) ns_wdelayhashtbl[NFS_WDELAYHASHSIZ]; |
| 445 | }; |
| 446 | |
| 447 | /* Bits for "ns_flag" */ |
| 448 | #define SLP_VALID 0x01 |
| 449 | #define SLP_DOREC 0x02 |
| 450 | #define SLP_NEEDQ 0x04 |
| 451 | #define SLP_DISCONN 0x08 |
| 452 | #define SLP_GETSTREAM 0x10 |
| 453 | #define SLP_LASTFRAG 0x20 |
| 454 | #define SLP_ALLFLAGS 0xff |
| 455 | |
| 456 | extern TAILQ_HEAD(nfssvc_sockhead, nfssvc_sock) nfssvc_sockhead; |
| 457 | extern int nfssvc_sockhead_flag; |
| 458 | #define SLP_INIT 0x01 |
| 459 | #define SLP_WANTINIT 0x02 |
| 460 | |
| 461 | /* |
| 462 | * One of these structures is allocated for each nfsd. |
| 463 | */ |
| 464 | struct nfsd { |
| 465 | TAILQ_ENTRY(nfsd) nfsd_chain; /* List of all nfsd's */ |
| 466 | int nfsd_flag; /* NFSD_ flags */ |
| 467 | struct nfssvc_sock *nfsd_slp; /* Current socket */ |
| 468 | int nfsd_authlen; /* Authenticator len */ |
| 469 | u_char nfsd_authstr[RPCAUTH_MAXSIZ]; /* Authenticator data */ |
| 470 | int nfsd_verflen; /* and the Verifier */ |
| 471 | u_char nfsd_verfstr[RPCVERF_MAXSIZ]; |
| 472 | struct thread *nfsd_td; /* thread ptr */ |
| 473 | struct nfsrv_descript *nfsd_nd; /* Associated nfsrv_descript */ |
| 474 | }; |
| 475 | |
| 476 | /* Bits for "nfsd_flag" */ |
| 477 | #define NFSD_WAITING 0x01 |
| 478 | #define NFSD_REQINPROG 0x02 |
| 479 | #define NFSD_NEEDAUTH 0x04 |
| 480 | #define NFSD_AUTHFAIL 0x08 |
| 481 | |
| 482 | /* |
| 483 | * This structure is used by the server for describing each request. |
| 484 | * Some fields are used only when write request gathering is performed. |
| 485 | */ |
| 486 | struct nfsrv_descript { |
| 487 | u_quad_t nd_time; /* Write deadline (usec) */ |
| 488 | off_t nd_off; /* Start byte offset */ |
| 489 | off_t nd_eoff; /* and end byte offset */ |
| 490 | LIST_ENTRY(nfsrv_descript) nd_hash; /* Hash list */ |
| 491 | LIST_ENTRY(nfsrv_descript) nd_tq; /* and timer list */ |
| 492 | LIST_HEAD(,nfsrv_descript) nd_coalesce; /* coalesced writes */ |
| 493 | struct mbuf *nd_mrep; /* Request mbuf list */ |
| 494 | struct mbuf *nd_md; /* Current dissect mbuf */ |
| 495 | struct mbuf *nd_mreq; /* Reply mbuf list */ |
| 496 | struct sockaddr *nd_nam; /* and socket addr */ |
| 497 | struct sockaddr *nd_nam2; /* return socket addr */ |
| 498 | caddr_t nd_dpos; /* Current dissect pos */ |
| 499 | u_int32_t nd_procnum; /* RPC # */ |
| 500 | int nd_stable; /* storage type */ |
| 501 | int nd_flag; /* nd_flag */ |
| 502 | int nd_len; /* Length of this write */ |
| 503 | int nd_repstat; /* Reply status */ |
| 504 | u_int32_t nd_retxid; /* Reply xid */ |
| 505 | u_int32_t nd_duration; /* Lease duration */ |
| 506 | struct timeval nd_starttime; /* Time RPC initiated */ |
| 507 | fhandle_t nd_fh; /* File handle */ |
| 508 | struct ucred nd_cr; /* Credentials */ |
| 509 | }; |
| 510 | |
| 511 | /* Bits for "nd_flag" */ |
| 512 | #define ND_READ LEASE_READ |
| 513 | #define ND_WRITE LEASE_WRITE |
| 514 | #define ND_CHECK 0x04 |
| 515 | #define ND_LEASE (ND_READ | ND_WRITE | ND_CHECK) |
| 516 | #define ND_NFSV3 0x08 |
| 517 | #define ND_NQNFS 0x10 |
| 518 | #define ND_KERBNICK 0x20 |
| 519 | #define ND_KERBFULL 0x40 |
| 520 | #define ND_KERBAUTH (ND_KERBNICK | ND_KERBFULL) |
| 521 | |
| 522 | extern TAILQ_HEAD(nfsd_head, nfsd) nfsd_head; |
| 523 | extern int nfsd_head_flag; |
| 524 | #define NFSD_CHECKSLP 0x01 |
| 525 | |
| 526 | /* |
| 527 | * These macros compare nfsrv_descript structures. |
| 528 | */ |
| 529 | #define NFSW_CONTIG(o, n) \ |
| 530 | ((o)->nd_eoff >= (n)->nd_off && \ |
| 531 | !bcmp((caddr_t)&(o)->nd_fh, (caddr_t)&(n)->nd_fh, NFSX_V3FH)) |
| 532 | |
| 533 | #define NFSW_SAMECRED(o, n) \ |
| 534 | (((o)->nd_flag & ND_KERBAUTH) == ((n)->nd_flag & ND_KERBAUTH) && \ |
| 535 | !bcmp((caddr_t)&(o)->nd_cr, (caddr_t)&(n)->nd_cr, \ |
| 536 | sizeof (struct ucred))) |
| 537 | |
| 538 | /* |
| 539 | * Defines for WebNFS |
| 540 | */ |
| 541 | |
| 542 | #define WEBNFS_ESC_CHAR '%' |
| 543 | #define WEBNFS_SPECCHAR_START 0x80 |
| 544 | |
| 545 | #define WEBNFS_NATIVE_CHAR 0x80 |
| 546 | /* |
| 547 | * .. |
| 548 | * Possibly more here in the future. |
| 549 | */ |
| 550 | |
| 551 | /* |
| 552 | * Macro for converting escape characters in WebNFS pathnames. |
| 553 | * Should really be in libkern. |
| 554 | */ |
| 555 | |
| 556 | #define HEXTOC(c) \ |
| 557 | ((c) >= 'a' ? ((c) - ('a' - 10)) : \ |
| 558 | ((c) >= 'A' ? ((c) - ('A' - 10)) : ((c) - '0'))) |
| 559 | #define HEXSTRTOI(p) \ |
| 560 | ((HEXTOC(p[0]) << 4) + HEXTOC(p[1])) |
| 561 | |
| 562 | #ifdef NFS_DEBUG |
| 563 | |
| 564 | extern int nfs_debug; |
| 565 | #define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */ |
| 566 | #define NFS_DEBUG_WG 2 /* server write gathering */ |
| 567 | #define NFS_DEBUG_RC 4 /* server request caching */ |
| 568 | |
| 569 | #define NFS_DPF(cat, args) \ |
| 570 | do { \ |
| 571 | if (nfs_debug & NFS_DEBUG_##cat) printf args; \ |
| 572 | } while (0) |
| 573 | |
| 574 | #else |
| 575 | |
| 576 | #define NFS_DPF(cat, args) |
| 577 | |
| 578 | #endif |
| 579 | |
| 580 | u_quad_t nfs_curusec __P((void)); |
| 581 | int nfs_init __P((struct vfsconf *vfsp)); |
| 582 | int nfs_uninit __P((struct vfsconf *vfsp)); |
| 583 | int nfs_reply __P((struct nfsreq *)); |
| 584 | int nfs_getreq __P((struct nfsrv_descript *,struct nfsd *,int)); |
| 585 | int nfs_send __P((struct socket *, struct sockaddr *, struct mbuf *, |
| 586 | struct nfsreq *)); |
| 587 | int nfs_rephead __P((int, struct nfsrv_descript *, struct nfssvc_sock *, |
| 588 | int, int, u_quad_t *, struct mbuf **, struct mbuf **, |
| 589 | caddr_t *)); |
| 590 | int nfs_sndlock __P((struct nfsreq *)); |
| 591 | void nfs_sndunlock __P((struct nfsreq *)); |
| 592 | int nfs_slplock __P((struct nfssvc_sock *, int)); |
| 593 | void nfs_slpunlock __P((struct nfssvc_sock *)); |
| 594 | int nfs_disct __P((struct mbuf **, caddr_t *, int, int, caddr_t *)); |
| 595 | int nfs_vinvalbuf __P((struct vnode *, int, struct ucred *, struct thread *, |
| 596 | int)); |
| 597 | int nfs_readrpc __P((struct vnode *, struct uio *, struct ucred *)); |
| 598 | int nfs_writerpc __P((struct vnode *, struct uio *, struct ucred *, int *, |
| 599 | int *)); |
| 600 | int nfs_commit __P((struct vnode *vp, u_quad_t offset, int cnt, |
| 601 | struct ucred *cred, struct thread *td)); |
| 602 | int nfs_readdirrpc __P((struct vnode *, struct uio *, struct ucred *)); |
| 603 | int nfs_asyncio __P((struct buf *, struct ucred *, struct thread *)); |
| 604 | int nfs_doio __P((struct buf *, struct ucred *, struct thread *)); |
| 605 | int nfs_readlinkrpc __P((struct vnode *, struct uio *, struct ucred *)); |
| 606 | int nfs_sigintr __P((struct nfsmount *, struct nfsreq *, struct thread *)); |
| 607 | int nfs_readdirplusrpc __P((struct vnode *, struct uio *, struct ucred *)); |
| 608 | int nfsm_disct __P((struct mbuf **, caddr_t *, int, int, caddr_t *)); |
| 609 | void nfsm_srvfattr __P((struct nfsrv_descript *, struct vattr *, |
| 610 | struct nfs_fattr *)); |
| 611 | void nfsm_srvwcc __P((struct nfsrv_descript *, int, struct vattr *, int, |
| 612 | struct vattr *, struct mbuf **, char **)); |
| 613 | void nfsm_srvpostopattr __P((struct nfsrv_descript *, int, struct vattr *, |
| 614 | struct mbuf **, char **)); |
| 615 | int netaddr_match __P((int, union nethostaddr *, struct sockaddr *)); |
| 616 | int nfs_request __P((struct vnode *, struct mbuf *, int, struct thread *, |
| 617 | struct ucred *, struct mbuf **, struct mbuf **, |
| 618 | caddr_t *)); |
| 619 | int nfs_loadattrcache __P((struct vnode **, struct mbuf **, caddr_t *, |
| 620 | struct vattr *, int)); |
| 621 | int nfs_namei __P((struct nameidata *, fhandle_t *, int, |
| 622 | struct nfssvc_sock *, struct sockaddr *, struct mbuf **, |
| 623 | caddr_t *, struct vnode **, struct thread *, int, int)); |
| 624 | void nfsm_adj __P((struct mbuf *, int, int)); |
| 625 | int nfsm_mbuftouio __P((struct mbuf **, struct uio *, int, caddr_t *)); |
| 626 | void nfsrv_initcache __P((void)); |
| 627 | int nfs_getauth __P((struct nfsmount *, struct nfsreq *, struct ucred *, |
| 628 | char **, int *, char *, int *, NFSKERBKEY_T)); |
| 629 | int nfs_getnickauth __P((struct nfsmount *, struct ucred *, char **, |
| 630 | int *, char *, int)); |
| 631 | int nfs_savenickauth __P((struct nfsmount *, struct ucred *, int, |
| 632 | NFSKERBKEY_T, struct mbuf **, char **, |
| 633 | struct mbuf *)); |
| 634 | int nfs_adv __P((struct mbuf **, caddr_t *, int, int)); |
| 635 | void nfs_nhinit __P((void)); |
| 636 | int nfs_nmcancelreqs __P((struct nfsmount *)); |
| 637 | void nfs_timer __P((void*)); |
| 638 | int nfsrv_dorec __P((struct nfssvc_sock *, struct nfsd *, |
| 639 | struct nfsrv_descript **)); |
| 640 | int nfsrv_getcache __P((struct nfsrv_descript *, struct nfssvc_sock *, |
| 641 | struct mbuf **)); |
| 642 | void nfsrv_updatecache __P((struct nfsrv_descript *, int, struct mbuf *)); |
| 643 | void nfsrv_cleancache __P((void)); |
| 644 | int nfs_connect __P((struct nfsmount *, struct nfsreq *)); |
| 645 | void nfs_disconnect __P((struct nfsmount *)); |
| 646 | void nfs_safedisconnect __P((struct nfsmount *)); |
| 647 | int nfs_getattrcache __P((struct vnode *, struct vattr *)); |
| 648 | int nfsm_strtmbuf __P((struct mbuf **, char **, const char *, long)); |
| 649 | int nfs_bioread __P((struct vnode *, struct uio *, int, struct ucred *)); |
| 650 | int nfsm_uiotombuf __P((struct uio *, struct mbuf **, int, caddr_t *)); |
| 651 | void nfsrv_init __P((int)); |
| 652 | void nfs_clearcommit __P((struct mount *)); |
| 653 | int nfsrv_errmap __P((struct nfsrv_descript *, int)); |
| 654 | void nfsrvw_sort __P((gid_t *, int)); |
| 655 | void nfsrv_setcred __P((struct ucred *, struct ucred *)); |
| 656 | int nfs_writebp __P((struct buf *, int, struct thread *)); |
| 657 | int nfsrv_object_create __P((struct vnode *)); |
| 658 | void nfsrv_wakenfsd __P((struct nfssvc_sock *slp)); |
| 659 | int nfsrv_writegather __P((struct nfsrv_descript **, struct nfssvc_sock *, |
| 660 | struct thread *, struct mbuf **)); |
| 661 | int nfs_fsinfo __P((struct nfsmount *, struct vnode *, struct ucred *, |
| 662 | struct thread *p)); |
| 663 | |
| 664 | int nfsrv3_access __P((struct nfsrv_descript *nfsd, |
| 665 | struct nfssvc_sock *slp, |
| 666 | struct thread *td, struct mbuf **mrq)); |
| 667 | int nfsrv_commit __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, |
| 668 | struct thread *td, struct mbuf **mrq)); |
| 669 | int nfsrv_create __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, |
| 670 | struct thread *td, struct mbuf **mrq)); |
| 671 | int nfsrv_fhtovp __P((fhandle_t *, int, struct vnode **, struct ucred *, |
| 672 | struct nfssvc_sock *, struct sockaddr *, int *, |
| 673 | int, int)); |
| 674 | int nfsrv_setpublicfs __P((struct mount *, struct netexport *, |
| 675 | struct export_args *)); |
| 676 | int nfs_ispublicfh __P((fhandle_t *)); |
| 677 | int nfsrv_fsinfo __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, |
| 678 | struct thread *td, struct mbuf **mrq)); |
| 679 | int nfsrv_getattr __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, |
| 680 | struct thread *td, struct mbuf **mrq)); |
| 681 | int nfsrv_link __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, |
| 682 | struct thread *td, struct mbuf **mrq)); |
| 683 | int nfsrv_lookup __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, |
| 684 | struct thread *td, struct mbuf **mrq)); |
| 685 | int nfsrv_mkdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, |
| 686 | struct thread *td, struct mbuf **mrq)); |
| 687 | int nfsrv_mknod __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, |
| 688 | struct thread *td, struct mbuf **mrq)); |
| 689 | int nfsrv_noop __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, |
| 690 | struct thread *td, struct mbuf **mrq)); |
| 691 | int nfsrv_null __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, |
| 692 | struct thread *td, struct mbuf **mrq)); |
| 693 | int nfsrv_pathconf __P((struct nfsrv_descript *nfsd, |
| 694 | struct nfssvc_sock *slp, struct thread *td, |
| 695 | struct mbuf **mrq)); |
| 696 | int nfsrv_read __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, |
| 697 | struct thread *td, struct mbuf **mrq)); |
| 698 | int nfsrv_readdir __P((struct nfsrv_descript *nfsd, |
| 699 | struct nfssvc_sock *slp, |
| 700 | struct thread *td, struct mbuf **mrq)); |
| 701 | int nfsrv_readdirplus __P((struct nfsrv_descript *nfsd, |
| 702 | struct nfssvc_sock *slp, struct thread *td, |
| 703 | struct mbuf **mrq)); |
| 704 | int nfsrv_readlink __P((struct nfsrv_descript *nfsd, |
| 705 | struct nfssvc_sock *slp, struct thread *td, |
| 706 | struct mbuf **mrq)); |
| 707 | int nfsrv_remove __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, |
| 708 | struct thread *td, struct mbuf **mrq)); |
| 709 | int nfsrv_rename __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, |
| 710 | struct thread *td, struct mbuf **mrq)); |
| 711 | int nfsrv_rmdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, |
| 712 | struct thread *td, struct mbuf **mrq)); |
| 713 | int nfsrv_setattr __P((struct nfsrv_descript *nfsd, |
| 714 | struct nfssvc_sock *slp, |
| 715 | struct thread *td, struct mbuf **mrq)); |
| 716 | int nfsrv_statfs __P((struct nfsrv_descript *nfsd, |
| 717 | struct nfssvc_sock *slp, |
| 718 | struct thread *td, struct mbuf **mrq)); |
| 719 | int nfsrv_symlink __P((struct nfsrv_descript *nfsd, |
| 720 | struct nfssvc_sock *slp, |
| 721 | struct thread *td, struct mbuf **mrq)); |
| 722 | int nfsrv_write __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, |
| 723 | struct thread *td, struct mbuf **mrq)); |
| 724 | void nfsrv_rcv __P((struct socket *so, void *arg, int waitflag)); |
| 725 | void nfsrv_slpderef __P((struct nfssvc_sock *slp)); |
| 726 | int nfs_meta_setsize __P((struct vnode *vp, struct ucred *cred, struct thread *td, u_quad_t nsize)); |
| 727 | |
| 728 | #endif /* _KERNEL */ |
| 729 | |
| 730 | #endif |