nfs.h revision 192581
1/*- 2 * Copyright (c) 1989, 1993 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 * 4. 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 * $FreeBSD: head/sys/fs/nfs/nfs.h 192581 2009-05-22 14:53:26Z rmacklem $ 33 */ 34 35#ifndef _NFS_NFS_H_ 36#define _NFS_NFS_H_ 37/* 38 * Tunable constants for nfs 39 */ 40 41#define NFS_MAXIOVEC 34 42#define NFS_TICKINTVL 10 /* Desired time for a tick (msec) */ 43#define NFS_HZ (hz / nfscl_ticks) /* Ticks/sec */ 44#define NFS_TIMEO (1 * NFS_HZ) /* Default timeout = 1 second */ 45#define NFS_MINTIMEO (1 * NFS_HZ) /* Min timeout to use */ 46#define NFS_MAXTIMEO (60 * NFS_HZ) /* Max timeout to backoff to */ 47#define NFS_TCPTIMEO 300 /* TCP timeout */ 48#define NFS_MAXRCVTIMEO 60 /* 1 minute in seconds */ 49#define NFS_MINIDEMTIMEO (5 * NFS_HZ) /* Min timeout for non-idempotent ops*/ 50#define NFS_MAXREXMIT 100 /* Stop counting after this many */ 51#define NFSV4_CALLBACKTIMEO (2 * NFS_HZ) /* Timeout in ticks */ 52#define NFSV4_CALLBACKRETRY 5 /* Number of retries before failure */ 53#define NFSV4_CBRETRYCNT 4 /* # of CBRecall retries upon err */ 54#define NFSV4_UPCALLTIMEO (15 * NFS_HZ) /* Timeout in ticks for upcalls */ 55 /* to gssd or nfsuserd */ 56#define NFSV4_UPCALLRETRY 4 /* Number of retries before failure */ 57#define NFS_MAXWINDOW 1024 /* Max number of outstanding requests */ 58#define NFS_RETRANS 10 /* Num of retrans for soft mounts */ 59#define NFS_MAXGRPS 16 /* Max. size of groups list */ 60#define NFS_TRYLATERDEL 15 /* Maximum delay timeout (sec) */ 61#ifndef NFS_REMOVETIMEO 62#define NFS_REMOVETIMEO 15 /* # sec to wait for delegret in local syscall */ 63#endif 64#ifndef NFS_MINATTRTIMO 65#define NFS_MINATTRTIMO 5 /* Attribute cache timeout in sec */ 66#endif 67#ifndef NFS_MAXATTRTIMO 68#define NFS_MAXATTRTIMO 60 69#endif 70#define NFS_WSIZE 8192 /* Def. write data size <= 8192 */ 71#define NFS_RSIZE 8192 /* Def. read data size <= 8192 */ 72#define NFS_READDIRSIZE 8192 /* Def. readdir size */ 73#define NFS_DEFRAHEAD 0 /* Def. read ahead # blocks */ 74#define NFS_MAXRAHEAD 32 /* Max. read ahead # blocks */ 75#define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */ 76#ifndef NFSRV_LEASE 77#define NFSRV_LEASE 120 /* Lease time in seconds for V4 */ 78#endif /* assigned to nfsrv_lease */ 79#ifndef NFSRV_STALELEASE 80#define NFSRV_STALELEASE (5 * nfsrv_lease) 81#endif 82#ifndef NFSRV_MOULDYLEASE 83#define NFSRV_MOULDYLEASE 604800 /* One week (in sec) */ 84#endif 85#ifndef NFSCLIENTHASHSIZE 86#define NFSCLIENTHASHSIZE 20 /* Size of server client hash table */ 87#endif 88#ifndef NFSLOCKHASHSIZE 89#define NFSLOCKHASHSIZE 20 /* Size of server nfslock hash table */ 90#endif 91#define NFSSTATEHASHSIZE 10 /* Size of server stateid hash table */ 92#ifndef NFSUSERHASHSIZE 93#define NFSUSERHASHSIZE 30 /* Size of user id hash table */ 94#endif 95#ifndef NFSGROUPHASHSIZE 96#define NFSGROUPHASHSIZE 5 /* Size of group id hash table */ 97#endif 98#ifndef NFSCLDELEGHIGHWATER 99#define NFSCLDELEGHIGHWATER 10000 /* limit for client delegations */ 100#endif 101#ifndef NFSNOOPEN /* Inactive open owner (sec) */ 102#define NFSNOOPEN 120 103#endif 104#define NFSRV_LEASEDELTA 15 /* # of seconds to delay beyond lease */ 105#define NFS_IDMAXSIZE 4 /* max sizeof (in_addr_t) */ 106#ifndef NFSRVCACHE_UDPTIMEOUT 107#define NFSRVCACHE_UDPTIMEOUT 30 /* # of sec to hold cached rpcs(udp) */ 108#endif 109#ifndef NFSRVCACHE_UDPHIGHWATER 110#define NFSRVCACHE_UDPHIGHWATER 500 /* Max # of udp cache entries */ 111#endif 112#ifndef NFSRVCACHE_TCPTIMEOUT 113#define NFSRVCACHE_TCPTIMEOUT (3600*12) /*#of sec to hold cached rpcs(tcp) */ 114#endif 115#ifndef NFSRVCACHE_FLOODLEVEL 116#define NFSRVCACHE_FLOODLEVEL 16384 /* Very high water mark for cache */ 117#endif 118#ifndef NFSRV_CLIENTHIGHWATER 119#define NFSRV_CLIENTHIGHWATER 1000 120#endif 121#ifndef NFSRV_MAXDUMPLIST 122#define NFSRV_MAXDUMPLIST 10000 123#endif 124#ifndef NFS_ACCESSCACHESIZE 125#define NFS_ACCESSCACHESIZE 8 126#endif 127#define NFSV4_CBPORT 7745 /* Callback port for testing */ 128 129/* 130 * This macro defines the high water mark for issuing V4 delegations. 131 * (It is currently set at a conservative 20% of NFSRV_V4STATELIMIT. This 132 * may want to increase when clients can make more effective use of 133 * delegations.) 134 */ 135#define NFSRV_V4DELEGLIMIT(c) (((c) * 5) > NFSRV_V4STATELIMIT) 136 137#define NFS_READDIRBLKSIZ DIRBLKSIZ /* Minimal nm_readdirsize */ 138 139/* 140 * Oddballs 141 */ 142#define NFS_CMPFH(n, f, s) \ 143 ((n)->n_fhp->nfh_len == (s) && !NFSBCMP((n)->n_fhp->nfh_fh, (caddr_t)(f), (s))) 144#define NFSRV_CMPFH(nf, ns, f, s) \ 145 ((ns) == (s) && !NFSBCMP((caddr_t)(nf), (caddr_t)(f), (s))) 146#define NFS_CMPTIME(t1, t2) \ 147 ((t1).tv_sec == (t2).tv_sec && (t1).tv_nsec == (t2).tv_nsec) 148#define NFS_SETTIME(t) do { \ 149 (t).tv_sec = time.tv_sec; (t).tv_nsec = 1000 * time.tv_usec; } while (0) 150#define NFS_SRVMAXDATA(n) \ 151 (((n)->nd_flag & (ND_NFSV3 | ND_NFSV4)) ? \ 152 NFS_MAXDATA : NFS_V2MAXDATA) 153#define NFS64BITSSET 0xffffffffffffffffull 154#define NFS64BITSMINUS1 0xfffffffffffffffeull 155 156/* 157 * Structures for the nfssvc(2) syscall. Not that anyone but nfsd, mount_nfs 158 * and nfsloaduser should ever try and use it. 159 */ 160struct nfsd_addsock_args { 161 int sock; /* Socket to serve */ 162 caddr_t name; /* Client addr for connection based sockets */ 163 int namelen; /* Length of name */ 164}; 165 166/* 167 * nfsd argument for new krpc. 168 */ 169struct nfsd_nfsd_args { 170 const char *principal; /* GSS-API service principal name */ 171 int minthreads; /* minimum service thread count */ 172 int maxthreads; /* maximum service thread count */ 173}; 174 175/* 176 * Arguments for use by the callback daemon. 177 */ 178struct nfsd_nfscbd_args { 179 const char *principal; /* GSS-API service principal name */ 180}; 181 182struct nfscbd_args { 183 int sock; /* Socket to serve */ 184 caddr_t name; /* Client addr for connection based sockets */ 185 int namelen; /* Length of name */ 186 u_short port; /* Port# for callbacks */ 187}; 188 189struct nfsd_idargs { 190 int nid_flag; /* Flags (see below) */ 191 uid_t nid_uid; /* user/group id */ 192 gid_t nid_gid; 193 int nid_usermax; /* Upper bound on user name cache */ 194 int nid_usertimeout;/* User name timeout (minutes) */ 195 u_char *nid_name; /* Name */ 196 int nid_namelen; /* and its length */ 197}; 198 199struct nfsd_clid { 200 int nclid_idlen; /* Length of client id */ 201 u_char nclid_id[NFSV4_OPAQUELIMIT]; /* and name */ 202}; 203 204struct nfsd_dumplist { 205 int ndl_size; /* Number of elements */ 206 void *ndl_list; /* and the list of elements */ 207}; 208 209struct nfsd_dumpclients { 210 u_int32_t ndcl_flags; /* LCL_xxx flags */ 211 u_int32_t ndcl_nopenowners; /* Number of openowners */ 212 u_int32_t ndcl_nopens; /* and opens */ 213 u_int32_t ndcl_nlockowners; /* and of lockowners */ 214 u_int32_t ndcl_nlocks; /* and of locks */ 215 u_int32_t ndcl_ndelegs; /* and of delegations */ 216 u_int32_t ndcl_nolddelegs; /* and old delegations */ 217 sa_family_t ndcl_addrfam; /* Callback address */ 218 union { 219 struct in_addr sin_addr; 220 struct in6_addr sin6_addr; 221 } ndcl_cbaddr; 222 struct nfsd_clid ndcl_clid; /* and client id */ 223}; 224 225struct nfsd_dumplocklist { 226 char *ndllck_fname; /* File Name */ 227 int ndllck_size; /* Number of elements */ 228 void *ndllck_list; /* and the list of elements */ 229}; 230 231struct nfsd_dumplocks { 232 u_int32_t ndlck_flags; /* state flags NFSLCK_xxx */ 233 nfsv4stateid_t ndlck_stateid; /* stateid */ 234 u_int64_t ndlck_first; /* lock byte range */ 235 u_int64_t ndlck_end; 236 struct nfsd_clid ndlck_owner; /* Owner of open/lock */ 237 sa_family_t ndlck_addrfam; /* Callback address */ 238 union { 239 struct in_addr sin_addr; 240 struct in6_addr sin6_addr; 241 } ndlck_cbaddr; 242 struct nfsd_clid ndlck_clid; /* and client id */ 243}; 244 245/* 246 * Structure for referral information. 247 */ 248struct nfsreferral { 249 u_char *nfr_srvlist; /* List of servers */ 250 int nfr_srvcnt; /* number of servers */ 251 vnode_t nfr_vp; /* vnode for referral */ 252 u_int32_t nfr_dfileno; /* assigned dir inode# */ 253}; 254 255/* 256 * Flags for lc_flags and opsflags for nfsrv_getclient(). 257 */ 258#define LCL_NEEDSCONFIRM 0x00000001 259#define LCL_DONTCLEAN 0x00000002 260#define LCL_WAKEUPWANTED 0x00000004 261#define LCL_TCPCALLBACK 0x00000008 262#define LCL_CALLBACKSON 0x00000010 263#define LCL_INDEXNOTOK 0x00000020 264#define LCL_STAMPEDSTABLE 0x00000040 265#define LCL_EXPIREIT 0x00000080 266#define LCL_CBDOWN 0x00000100 267#define LCL_KERBV 0x00000400 268#define LCL_NAME 0x00000800 269#define LCL_NEEDSCBNULL 0x00001000 270#define LCL_GSSINTEGRITY 0x00002000 271#define LCL_GSSPRIVACY 0x00004000 272#define LCL_ADMINREVOKED 0x00008000 273 274#define LCL_GSS LCL_KERBV /* Or of all mechs */ 275 276/* 277 * Bits for flags in nfslock and nfsstate. 278 * The access, deny, NFSLCK_READ and NFSLCK_WRITE bits must be defined as 279 * below, in the correct order, so the shifts work for tests. 280 */ 281#define NFSLCK_READACCESS 0x00000001 282#define NFSLCK_WRITEACCESS 0x00000002 283#define NFSLCK_ACCESSBITS (NFSLCK_READACCESS | NFSLCK_WRITEACCESS) 284#define NFSLCK_SHIFT 2 285#define NFSLCK_READDENY 0x00000004 286#define NFSLCK_WRITEDENY 0x00000008 287#define NFSLCK_DENYBITS (NFSLCK_READDENY | NFSLCK_WRITEDENY) 288#define NFSLCK_SHAREBITS \ 289 (NFSLCK_READACCESS|NFSLCK_WRITEACCESS|NFSLCK_READDENY|NFSLCK_WRITEDENY) 290#define NFSLCK_LOCKSHIFT 4 291#define NFSLCK_READ 0x00000010 292#define NFSLCK_WRITE 0x00000020 293#define NFSLCK_BLOCKING 0x00000040 294#define NFSLCK_RECLAIM 0x00000080 295#define NFSLCK_OPENTOLOCK 0x00000100 296#define NFSLCK_TEST 0x00000200 297#define NFSLCK_LOCK 0x00000400 298#define NFSLCK_UNLOCK 0x00000800 299#define NFSLCK_OPEN 0x00001000 300#define NFSLCK_CLOSE 0x00002000 301#define NFSLCK_CHECK 0x00004000 302#define NFSLCK_RELEASE 0x00008000 303#define NFSLCK_NEEDSCONFIRM 0x00010000 304#define NFSLCK_CONFIRM 0x00020000 305#define NFSLCK_DOWNGRADE 0x00040000 306#define NFSLCK_DELEGREAD 0x00080000 307#define NFSLCK_DELEGWRITE 0x00100000 308#define NFSLCK_DELEGCUR 0x00200000 309#define NFSLCK_DELEGPREV 0x00400000 310#define NFSLCK_OLDDELEG 0x00800000 311#define NFSLCK_DELEGRECALL 0x01000000 312#define NFSLCK_SETATTR 0x02000000 313#define NFSLCK_DELEGPURGE 0x04000000 314#define NFSLCK_DELEGRETURN 0x08000000 315 316/* And bits for nid_flag */ 317#define NFSID_INITIALIZE 0x0001 318#define NFSID_ADDUID 0x0002 319#define NFSID_DELUID 0x0004 320#define NFSID_ADDUSERNAME 0x0008 321#define NFSID_DELUSERNAME 0x0010 322#define NFSID_ADDGID 0x0020 323#define NFSID_DELGID 0x0040 324#define NFSID_ADDGROUPNAME 0x0080 325#define NFSID_DELGROUPNAME 0x0100 326 327/* 328 * fs.nfs sysctl(3) identifiers 329 */ 330#define NFS_NFSSTATS 1 /* struct: struct nfsstats */ 331 332#define FS_NFS_NAMES { \ 333 { 0, 0 }, \ 334 { "nfsstats", CTLTYPE_STRUCT }, \ 335} 336 337/* 338 * Here is the definition of the attribute bits array and macros that 339 * manipulate it. 340 * THE MACROS MUST BE MANUALLY MODIFIED IF NFSATTRBIT_MAXWORDS CHANGES!! 341 * It is (NFSATTRBIT_MAX + 31) / 32. 342 */ 343#define NFSATTRBIT_MAXWORDS 2 344 345typedef struct { 346 u_int32_t bits[NFSATTRBIT_MAXWORDS]; 347} nfsattrbit_t; 348 349#define NFSZERO_ATTRBIT(b) do { (b)->bits[0] = 0; (b)->bits[1] = 0; } while (0) 350#define NFSSET_ATTRBIT(t, f) do { (t)->bits[0] = (f)->bits[0]; \ 351 (t)->bits[1] = (f)->bits[1]; } while (0) 352#define NFSSETSUPP_ATTRBIT(b) do { \ 353 (b)->bits[0] = NFSATTRBIT_SUPP0; \ 354 (b)->bits[1] = (NFSATTRBIT_SUPP1 | NFSATTRBIT_SUPPSETONLY); } while (0) 355#define NFSISSET_ATTRBIT(b, p) ((b)->bits[(p) / 32] & (1 << ((p) % 32))) 356#define NFSSETBIT_ATTRBIT(b, p) ((b)->bits[(p) / 32] |= (1 << ((p) % 32))) 357#define NFSCLRBIT_ATTRBIT(b, p) ((b)->bits[(p) / 32] &= ~(1 << ((p) % 32))) 358#define NFSCLRALL_ATTRBIT(b, a) do { \ 359 (b)->bits[0] &= ~((a)->bits[0]); \ 360 (b)->bits[1] &= ~((a)->bits[1]); \ 361 } while (0) 362#define NFSCLRNOT_ATTRBIT(b, a) do { \ 363 (b)->bits[0] &= ((a)->bits[0]); \ 364 (b)->bits[1] &= ((a)->bits[1]); \ 365 } while (0) 366#define NFSCLRNOTFILLABLE_ATTRBIT(b) do { \ 367 (b)->bits[0] &= NFSATTRBIT_SUPP0; \ 368 (b)->bits[1] &= NFSATTRBIT_SUPP1; } while (0) 369#define NFSCLRNOTSETABLE_ATTRBIT(b) do { \ 370 (b)->bits[0] &= NFSATTRBIT_SETABLE0; \ 371 (b)->bits[1] &= NFSATTRBIT_SETABLE1; } while (0) 372#define NFSNONZERO_ATTRBIT(b) ((b)->bits[0] || (b)->bits[1]) 373#define NFSEQUAL_ATTRBIT(b, p) \ 374 ((b)->bits[0] == (p)->bits[0] && (b)->bits[1] == (p)->bits[1]) 375#define NFSGETATTR_ATTRBIT(b) do { \ 376 (b)->bits[0] = NFSATTRBIT_GETATTR0; \ 377 (b)->bits[1] = NFSATTRBIT_GETATTR1; } while (0) 378#define NFSWCCATTR_ATTRBIT(b) do { \ 379 (b)->bits[0] = NFSATTRBIT_WCCATTR0; \ 380 (b)->bits[1] = NFSATTRBIT_WCCATTR1; } while (0) 381#define NFSWRITEGETATTR_ATTRBIT(b) do { \ 382 (b)->bits[0] = NFSATTRBIT_WRITEGETATTR0; \ 383 (b)->bits[1] = NFSATTRBIT_WRITEGETATTR1; } while (0) 384#define NFSCBGETATTR_ATTRBIT(b, c) do { \ 385 (c)->bits[0] = ((b)->bits[0] & NFSATTRBIT_CBGETATTR0); \ 386 (c)->bits[1] = ((b)->bits[1] & NFSATTRBIT_CBGETATTR1); } while (0) 387#define NFSPATHCONF_GETATTRBIT(b) do { \ 388 (b)->bits[0] = NFSGETATTRBIT_PATHCONF0; \ 389 (b)->bits[1] = NFSGETATTRBIT_PATHCONF1; } while (0) 390#define NFSSTATFS_GETATTRBIT(b) do { \ 391 (b)->bits[0] = NFSGETATTRBIT_STATFS0; \ 392 (b)->bits[1] = NFSGETATTRBIT_STATFS1; } while (0) 393#define NFSISSETSTATFS_ATTRBIT(b) \ 394 (((b)->bits[0] & NFSATTRBIT_STATFS0) || \ 395 ((b)->bits[1] & NFSATTRBIT_STATFS1)) 396#define NFSCLRSTATFS_ATTRBIT(b) do { \ 397 (b)->bits[0] &= ~NFSATTRBIT_STATFS0; \ 398 (b)->bits[1] &= ~NFSATTRBIT_STATFS1; } while (0) 399#define NFSREADDIRPLUS_ATTRBIT(b) do { \ 400 (b)->bits[0] = NFSATTRBIT_READDIRPLUS0; \ 401 (b)->bits[1] = NFSATTRBIT_READDIRPLUS1; } while (0) 402#define NFSREFERRAL_ATTRBIT(b) do { \ 403 (b)->bits[0] = NFSATTRBIT_REFERRAL0; \ 404 (b)->bits[1] = NFSATTRBIT_REFERRAL1; } while (0) 405 406/* 407 * Store uid, gid creds that handle maps to. 408 * Since some BSDen define cr_gid as cr_groups[0], I'll just keep them 409 * all in nfsc_groups[NGROUPS + 1]. 410 */ 411struct nfscred { 412 uid_t nfsc_uid; 413 gid_t nfsc_groups[NGROUPS + 1]; 414 int nfsc_ngroups; 415}; 416 417/* 418 * Constants that define the file handle for the V4 root directory. 419 * (The FSID must never be used by other file systems that are exported.) 420 */ 421#define NFSV4ROOT_FSID0 ((int32_t) -1) 422#define NFSV4ROOT_FSID1 ((int32_t) -1) 423#define NFSV4ROOT_REFERRAL ((int32_t) -2) 424#define NFSV4ROOT_INO 2 /* It's traditional */ 425#define NFSV4ROOT_GEN 1 426 427/* 428 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts. 429 * What should be in this set is open to debate, but I believe that since 430 * I/O system calls on ufs are never interrupted by signals the set should 431 * be minimal. My reasoning is that many current programs that use signals 432 * such as SIGALRM will not expect file I/O system calls to be interrupted 433 * by them and break. 434 */ 435#if defined(_KERNEL) || defined(KERNEL) 436 437struct uio; struct buf; struct vattr; struct nameidata; /* XXX */ 438 439/* 440 * Socket errors ignored for connectionless sockets? 441 * For now, ignore them all 442 */ 443#define NFSIGNORE_SOERROR(s, e) \ 444 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \ 445 ((s) & PR_CONNREQUIRED) == 0) 446 447 448/* 449 * This structure holds socket information for a connection. Used by the 450 * client and the server for callbacks. 451 */ 452struct nfssockreq { 453 NFSSOCKADDR_T nr_nam; 454 int nr_sotype; 455 int nr_soproto; 456 int nr_soflags; 457 struct ucred *nr_cred; 458 int nr_lock; 459 NFSMUTEX_T nr_mtx; 460 u_int32_t nr_prog; 461 u_int32_t nr_vers; 462 struct __rpc_client *nr_client; 463}; 464 465/* 466 * And associated nr_lock bits. 467 */ 468#define NFSR_SNDLOCK 0x01 469#define NFSR_WANTSND 0x02 470#define NFSR_RCVLOCK 0x04 471#define NFSR_WANTRCV 0x08 472#define NFSR_RESERVEDPORT 0x10 473#define NFSR_LOCALHOST 0x20 474 475/* 476 * Queue head for nfsreq's 477 */ 478TAILQ_HEAD(nfsreqhead, nfsreq); 479 480/* This is the only nfsreq R_xxx flag still used. */ 481#define R_DONTRECOVER 0x00000100 /* don't initiate recovery when this 482 rpc gets a stale state reply */ 483 484/* 485 * Network address hash list element 486 */ 487union nethostaddr { 488 struct in_addr had_inet; 489 struct in6_addr had_inet6; 490}; 491 492/* 493 * Structure of list of mechanisms. 494 */ 495struct nfsgss_mechlist { 496 int len; 497 const u_char *str; 498 int totlen; 499}; 500#define KERBV_MECH 0 /* position in list */ 501 502/* 503 * This structure is used by the server for describing each request. 504 */ 505struct nfsrv_descript { 506 mbuf_t nd_mrep; /* Request mbuf list */ 507 mbuf_t nd_md; /* Current dissect mbuf */ 508 mbuf_t nd_mreq; /* Reply mbuf list */ 509 mbuf_t nd_mb; /* Current build mbuf */ 510 NFSSOCKADDR_T nd_nam; /* and socket addr */ 511 NFSSOCKADDR_T nd_nam2; /* return socket addr */ 512 caddr_t nd_dpos; /* Current dissect pos */ 513 caddr_t nd_bpos; /* Current build pos */ 514 u_int16_t nd_procnum; /* RPC # */ 515 u_int32_t nd_flag; /* nd_flag */ 516 u_int32_t nd_repstat; /* Reply status */ 517 int *nd_errp; /* Pointer to ret status */ 518 u_int32_t nd_retxid; /* Reply xid */ 519 struct nfsrvcache *nd_rp; /* Assoc. cache entry */ 520 struct timeval nd_starttime; /* Time RPC initiated */ 521 fhandle_t nd_fh; /* File handle */ 522 struct ucred *nd_cred; /* Credentials */ 523 uid_t nd_saveduid; /* Saved uid */ 524 u_int64_t nd_sockref; /* Rcv socket ref# */ 525 u_int64_t nd_compref; /* Compound RPC ref# */ 526 time_t nd_tcpconntime; /* Time TCP connection est. */ 527 nfsquad_t nd_clientid; /* Implied clientid */ 528 int nd_gssnamelen; /* principal name length */ 529 char *nd_gssname; /* principal name */ 530}; 531 532#define nd_princlen nd_gssnamelen 533#define nd_principal nd_gssname 534 535/* Bits for "nd_flag" */ 536#define ND_DONTSAVEREPLY 0x00000001 537#define ND_SAVEREPLY 0x00000002 538#define ND_NFSV2 0x00000004 539#define ND_NFSV3 0x00000008 540#define ND_NFSV4 0x00000010 541#define ND_KERBV 0x00000020 542#define ND_GSSINTEGRITY 0x00000040 543#define ND_GSSPRIVACY 0x00000080 544#define ND_WINDOWVERF 0x00000100 545#define ND_GSSINITREPLY 0x00000200 546#define ND_STREAMSOCK 0x00000400 547#define ND_PUBLOOKUP 0x00000800 548#define ND_USEGSSNAME 0x00001000 549#define ND_SAMETCPCONN 0x00002000 550#define ND_IMPLIEDCLID 0x00004000 551#define ND_NOMOREDATA 0x00008000 552#define ND_V4WCCATTR 0x00010000 553#define ND_NFSCB 0x00020000 554#define ND_AUTHNONE 0x00040000 555#define ND_EXAUTHSYS 0x00080000 556#define ND_EXGSS 0x00100000 557#define ND_EXGSSINTEGRITY 0x00200000 558#define ND_EXGSSPRIVACY 0x00400000 559#define ND_INCRSEQID 0x00800000 560 561/* 562 * ND_GSS should be the "or" of all GSS type authentications. 563 */ 564#define ND_GSS (ND_KERBV) 565 566struct nfsv4_opflag { 567 int retfh; 568 int needscfh; 569 int savereply; 570 int modifyfs; 571}; 572 573/* 574 * Flags used to indicate what to do w.r.t. seqid checking. 575 */ 576#define NFSRVSEQID_FIRST 0x01 577#define NFSRVSEQID_LAST 0x02 578#define NFSRVSEQID_OPEN 0x04 579 580/* 581 * assign a doubly linked list to a new head 582 * and prepend one list into another. 583 */ 584#define LIST_NEWHEAD(nhead, ohead, field) do { \ 585 if (((nhead)->lh_first = (ohead)->lh_first) != NULL) \ 586 (ohead)->lh_first->field.le_prev = &(nhead)->lh_first; \ 587 (ohead)->lh_first = NULL; \ 588 } while (0) 589 590#define LIST_PREPEND(head, phead, lelm, field) do { \ 591 if ((head)->lh_first != NULL) { \ 592 (lelm)->field.le_next = (head)->lh_first; \ 593 (lelm)->field.le_next->field.le_prev = \ 594 &(lelm)->field.le_next; \ 595 } \ 596 (head)->lh_first = (phead)->lh_first; \ 597 (head)->lh_first->field.le_prev = &(head)->lh_first; \ 598 } while (0) 599 600/* 601 * File handle structure for client. Malloc'd to the correct length with 602 * malloc type M_NFSFH. 603 */ 604struct nfsfh { 605 u_int16_t nfh_len; /* Length of file handle */ 606 u_int8_t nfh_fh[1]; /* and the file handle */ 607}; 608 609/* 610 * File handle structure for server. The NFSRV_MAXFH constant is 611 * set in nfsdport.h. I use a 32bit length, so that alignment is 612 * preserved. 613 */ 614struct nfsrvfh { 615 u_int32_t nfsrvfh_len; 616 u_int8_t nfsrvfh_data[NFSRV_MAXFH]; 617}; 618 619/* 620 * This structure is used for sleep locks on the NFSv4 nfsd threads and 621 * NFSv4 client data structures. 622 */ 623struct nfsv4lock { 624 u_int32_t nfslock_usecnt; 625 u_int8_t nfslock_lock; 626}; 627#define NFSV4LOCK_LOCK 0x01 628#define NFSV4LOCK_LOCKWANTED 0x02 629#define NFSV4LOCK_WANTED 0x04 630 631/* 632 * Values for the override argument for nfsvno_accchk(). 633 */ 634#define NFSACCCHK_NOOVERRIDE 0 635#define NFSACCCHK_ALLOWROOT 1 636#define NFSACCCHK_ALLOWOWNER 2 637 638/* 639 * and values for the vpislocked argument for nfsvno_accchk(). 640 */ 641#define NFSACCCHK_VPNOTLOCKED 0 642#define NFSACCCHK_VPISLOCKED 1 643 644#endif /* _KERNEL */ 645 646#endif /* _NFS_NFS_H */ 647