nfs.h revision 292223
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: stable/10/sys/fs/nfs/nfs.h 292223 2015-12-14 21:21:43Z 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 500 /* 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_SLOTS 64 /* Number of slots, fore channel */ 54#define NFSV4_CBSLOTS 8 /* Number of slots, back channel */ 55#define NFSV4_CBRETRYCNT 4 /* # of CBRecall retries upon err */ 56#define NFSV4_UPCALLTIMEO (15 * NFS_HZ) /* Timeout in ticks for upcalls */ 57 /* to gssd or nfsuserd */ 58#define NFSV4_UPCALLRETRY 4 /* Number of retries before failure */ 59#define NFS_MAXWINDOW 1024 /* Max number of outstanding requests */ 60#define NFS_RETRANS 10 /* Num of retrans for soft mounts */ 61#define NFS_RETRANS_TCP 2 /* Num of retrans for TCP soft mounts */ 62#define NFS_MAXGRPS 16 /* Max. size of groups list */ 63#define NFS_TRYLATERDEL 15 /* Maximum delay timeout (sec) */ 64#ifndef NFS_REMOVETIMEO 65#define NFS_REMOVETIMEO 15 /* # sec to wait for delegret in local syscall */ 66#endif 67#ifndef NFS_MINATTRTIMO 68#define NFS_MINATTRTIMO 5 /* Attribute cache timeout in sec */ 69#endif 70#ifndef NFS_MAXATTRTIMO 71#define NFS_MAXATTRTIMO 60 72#endif 73#define NFS_WSIZE 8192 /* Def. write data size <= 8192 */ 74#define NFS_RSIZE 8192 /* Def. read data size <= 8192 */ 75#define NFS_READDIRSIZE 8192 /* Def. readdir size */ 76#define NFS_DEFRAHEAD 1 /* Def. read ahead # blocks */ 77#define NFS_MAXRAHEAD 16 /* Max. read ahead # blocks */ 78#define NFS_MAXASYNCDAEMON 64 /* Max. number async_daemons runnable */ 79#define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */ 80#ifndef NFSRV_LEASE 81#define NFSRV_LEASE 120 /* Lease time in seconds for V4 */ 82#endif /* assigned to nfsrv_lease */ 83#ifndef NFSRV_STALELEASE 84#define NFSRV_STALELEASE (5 * nfsrv_lease) 85#endif 86#ifndef NFSRV_MOULDYLEASE 87#define NFSRV_MOULDYLEASE 604800 /* One week (in sec) */ 88#endif 89#ifndef NFSCLIENTHASHSIZE 90#define NFSCLIENTHASHSIZE 20 /* Size of server client hash table */ 91#endif 92#ifndef NFSLOCKHASHSIZE 93#define NFSLOCKHASHSIZE 20 /* Size of server nfslock hash table */ 94#endif 95#ifndef NFSSESSIONHASHSIZE 96#define NFSSESSIONHASHSIZE 20 /* Size of server session hash table */ 97#endif 98#define NFSSTATEHASHSIZE 10 /* Size of server stateid hash table */ 99#ifndef NFSCLDELEGHIGHWATER 100#define NFSCLDELEGHIGHWATER 10000 /* limit for client delegations */ 101#endif 102#ifndef NFSCLLAYOUTHIGHWATER 103#define NFSCLLAYOUTHIGHWATER 10000 /* limit for client pNFS layouts */ 104#endif 105#ifndef NFSNOOPEN /* Inactive open owner (sec) */ 106#define NFSNOOPEN 120 107#endif 108#define NFSRV_LEASEDELTA 15 /* # of seconds to delay beyond lease */ 109#define NFS_IDMAXSIZE 4 /* max sizeof (in_addr_t) */ 110#ifndef NFSRVCACHE_UDPTIMEOUT 111#define NFSRVCACHE_UDPTIMEOUT 30 /* # of sec to hold cached rpcs(udp) */ 112#endif 113#ifndef NFSRVCACHE_UDPHIGHWATER 114#define NFSRVCACHE_UDPHIGHWATER 500 /* Max # of udp cache entries */ 115#endif 116#ifndef NFSRVCACHE_TCPTIMEOUT 117#define NFSRVCACHE_TCPTIMEOUT (3600*12) /*#of sec to hold cached rpcs(tcp) */ 118#endif 119#ifndef NFSRVCACHE_FLOODLEVEL 120#define NFSRVCACHE_FLOODLEVEL 16384 /* Very high water mark for cache */ 121#endif 122#ifndef NFSRV_CLIENTHIGHWATER 123#define NFSRV_CLIENTHIGHWATER 1000 124#endif 125#ifndef NFSRV_MAXDUMPLIST 126#define NFSRV_MAXDUMPLIST 10000 127#endif 128#ifndef NFS_ACCESSCACHESIZE 129#define NFS_ACCESSCACHESIZE 8 130#endif 131#define NFSV4_CBPORT 7745 /* Callback port for testing */ 132 133/* 134 * This macro defines the high water mark for issuing V4 delegations. 135 * (It is currently set at a conservative 20% of nfsrv_v4statelimit. This 136 * may want to increase when clients can make more effective use of 137 * delegations.) 138 */ 139#define NFSRV_V4DELEGLIMIT(c) (((c) * 5) > nfsrv_v4statelimit) 140 141#define NFS_READDIRBLKSIZ DIRBLKSIZ /* Minimal nm_readdirsize */ 142 143/* 144 * Oddballs 145 */ 146#define NFS_CMPFH(n, f, s) \ 147 ((n)->n_fhp->nfh_len == (s) && !NFSBCMP((n)->n_fhp->nfh_fh, (caddr_t)(f), (s))) 148#define NFSRV_CMPFH(nf, ns, f, s) \ 149 ((ns) == (s) && !NFSBCMP((caddr_t)(nf), (caddr_t)(f), (s))) 150#define NFS_CMPTIME(t1, t2) \ 151 ((t1).tv_sec == (t2).tv_sec && (t1).tv_nsec == (t2).tv_nsec) 152#define NFS_SETTIME(t) do { \ 153 (t).tv_sec = time.tv_sec; (t).tv_nsec = 1000 * time.tv_usec; } while (0) 154#define NFS_SRVMAXDATA(n) \ 155 (((n)->nd_flag & (ND_NFSV3 | ND_NFSV4)) ? \ 156 NFS_SRVMAXIO : NFS_V2MAXDATA) 157#define NFS64BITSSET 0xffffffffffffffffull 158#define NFS64BITSMINUS1 0xfffffffffffffffeull 159 160/* 161 * Structures for the nfssvc(2) syscall. Not that anyone but nfsd, mount_nfs 162 * and nfsloaduser should ever try and use it. 163 */ 164struct nfsd_addsock_args { 165 int sock; /* Socket to serve */ 166 caddr_t name; /* Client addr for connection based sockets */ 167 int namelen; /* Length of name */ 168}; 169 170/* 171 * nfsd argument for new krpc. 172 */ 173struct nfsd_nfsd_args { 174 const char *principal; /* GSS-API service principal name */ 175 int minthreads; /* minimum service thread count */ 176 int maxthreads; /* maximum service thread count */ 177}; 178 179/* 180 * Arguments for use by the callback daemon. 181 */ 182struct nfsd_nfscbd_args { 183 const char *principal; /* GSS-API service principal name */ 184}; 185 186struct nfscbd_args { 187 int sock; /* Socket to serve */ 188 caddr_t name; /* Client addr for connection based sockets */ 189 int namelen; /* Length of name */ 190 u_short port; /* Port# for callbacks */ 191}; 192 193struct nfsd_idargs { 194 int nid_flag; /* Flags (see below) */ 195 uid_t nid_uid; /* user/group id */ 196 gid_t nid_gid; 197 int nid_usermax; /* Upper bound on user name cache */ 198 int nid_usertimeout;/* User name timeout (minutes) */ 199 u_char *nid_name; /* Name */ 200 int nid_namelen; /* and its length */ 201 gid_t *nid_grps; /* and the list */ 202 int nid_ngroup; /* Size of groups list */ 203}; 204 205struct nfsd_oidargs { 206 int nid_flag; /* Flags (see below) */ 207 uid_t nid_uid; /* user/group id */ 208 gid_t nid_gid; 209 int nid_usermax; /* Upper bound on user name cache */ 210 int nid_usertimeout;/* User name timeout (minutes) */ 211 u_char *nid_name; /* Name */ 212 int nid_namelen; /* and its length */ 213}; 214 215struct nfsd_clid { 216 int nclid_idlen; /* Length of client id */ 217 u_char nclid_id[NFSV4_OPAQUELIMIT]; /* and name */ 218}; 219 220struct nfsd_dumplist { 221 int ndl_size; /* Number of elements */ 222 void *ndl_list; /* and the list of elements */ 223}; 224 225struct nfsd_dumpclients { 226 u_int32_t ndcl_flags; /* LCL_xxx flags */ 227 u_int32_t ndcl_nopenowners; /* Number of openowners */ 228 u_int32_t ndcl_nopens; /* and opens */ 229 u_int32_t ndcl_nlockowners; /* and of lockowners */ 230 u_int32_t ndcl_nlocks; /* and of locks */ 231 u_int32_t ndcl_ndelegs; /* and of delegations */ 232 u_int32_t ndcl_nolddelegs; /* and old delegations */ 233 sa_family_t ndcl_addrfam; /* Callback address */ 234 union { 235 struct in_addr sin_addr; 236 struct in6_addr sin6_addr; 237 } ndcl_cbaddr; 238 struct nfsd_clid ndcl_clid; /* and client id */ 239}; 240 241struct nfsd_dumplocklist { 242 char *ndllck_fname; /* File Name */ 243 int ndllck_size; /* Number of elements */ 244 void *ndllck_list; /* and the list of elements */ 245}; 246 247struct nfsd_dumplocks { 248 u_int32_t ndlck_flags; /* state flags NFSLCK_xxx */ 249 nfsv4stateid_t ndlck_stateid; /* stateid */ 250 u_int64_t ndlck_first; /* lock byte range */ 251 u_int64_t ndlck_end; 252 struct nfsd_clid ndlck_owner; /* Owner of open/lock */ 253 sa_family_t ndlck_addrfam; /* Callback address */ 254 union { 255 struct in_addr sin_addr; 256 struct in6_addr sin6_addr; 257 } ndlck_cbaddr; 258 struct nfsd_clid ndlck_clid; /* and client id */ 259}; 260 261/* 262 * Structure for referral information. 263 */ 264struct nfsreferral { 265 u_char *nfr_srvlist; /* List of servers */ 266 int nfr_srvcnt; /* number of servers */ 267 vnode_t nfr_vp; /* vnode for referral */ 268 u_int32_t nfr_dfileno; /* assigned dir inode# */ 269}; 270 271/* 272 * Flags for lc_flags and opsflags for nfsrv_getclient(). 273 */ 274#define LCL_NEEDSCONFIRM 0x00000001 275#define LCL_DONTCLEAN 0x00000002 276#define LCL_WAKEUPWANTED 0x00000004 277#define LCL_TCPCALLBACK 0x00000008 278#define LCL_CALLBACKSON 0x00000010 279#define LCL_INDEXNOTOK 0x00000020 280#define LCL_STAMPEDSTABLE 0x00000040 281#define LCL_EXPIREIT 0x00000080 282#define LCL_CBDOWN 0x00000100 283#define LCL_KERBV 0x00000400 284#define LCL_NAME 0x00000800 285#define LCL_NEEDSCBNULL 0x00001000 286#define LCL_GSSINTEGRITY 0x00002000 287#define LCL_GSSPRIVACY 0x00004000 288#define LCL_ADMINREVOKED 0x00008000 289#define LCL_RECLAIMCOMPLETE 0x00010000 290#define LCL_NFSV41 0x00020000 291 292#define LCL_GSS LCL_KERBV /* Or of all mechs */ 293 294/* 295 * Bits for flags in nfslock and nfsstate. 296 * The access, deny, NFSLCK_READ and NFSLCK_WRITE bits must be defined as 297 * below, in the correct order, so the shifts work for tests. 298 */ 299#define NFSLCK_READACCESS 0x00000001 300#define NFSLCK_WRITEACCESS 0x00000002 301#define NFSLCK_ACCESSBITS (NFSLCK_READACCESS | NFSLCK_WRITEACCESS) 302#define NFSLCK_SHIFT 2 303#define NFSLCK_READDENY 0x00000004 304#define NFSLCK_WRITEDENY 0x00000008 305#define NFSLCK_DENYBITS (NFSLCK_READDENY | NFSLCK_WRITEDENY) 306#define NFSLCK_SHAREBITS \ 307 (NFSLCK_READACCESS|NFSLCK_WRITEACCESS|NFSLCK_READDENY|NFSLCK_WRITEDENY) 308#define NFSLCK_LOCKSHIFT 4 309#define NFSLCK_READ 0x00000010 310#define NFSLCK_WRITE 0x00000020 311#define NFSLCK_BLOCKING 0x00000040 312#define NFSLCK_RECLAIM 0x00000080 313#define NFSLCK_OPENTOLOCK 0x00000100 314#define NFSLCK_TEST 0x00000200 315#define NFSLCK_LOCK 0x00000400 316#define NFSLCK_UNLOCK 0x00000800 317#define NFSLCK_OPEN 0x00001000 318#define NFSLCK_CLOSE 0x00002000 319#define NFSLCK_CHECK 0x00004000 320#define NFSLCK_RELEASE 0x00008000 321#define NFSLCK_NEEDSCONFIRM 0x00010000 322#define NFSLCK_CONFIRM 0x00020000 323#define NFSLCK_DOWNGRADE 0x00040000 324#define NFSLCK_DELEGREAD 0x00080000 325#define NFSLCK_DELEGWRITE 0x00100000 326#define NFSLCK_DELEGCUR 0x00200000 327#define NFSLCK_DELEGPREV 0x00400000 328#define NFSLCK_OLDDELEG 0x00800000 329#define NFSLCK_DELEGRECALL 0x01000000 330#define NFSLCK_SETATTR 0x02000000 331#define NFSLCK_DELEGPURGE 0x04000000 332#define NFSLCK_DELEGRETURN 0x08000000 333#define NFSLCK_WANTWDELEG 0x10000000 334#define NFSLCK_WANTRDELEG 0x20000000 335#define NFSLCK_WANTNODELEG 0x40000000 336#define NFSLCK_WANTBITS \ 337 (NFSLCK_WANTWDELEG | NFSLCK_WANTRDELEG | NFSLCK_WANTNODELEG) 338 339/* And bits for nid_flag */ 340#define NFSID_INITIALIZE 0x0001 341#define NFSID_ADDUID 0x0002 342#define NFSID_DELUID 0x0004 343#define NFSID_ADDUSERNAME 0x0008 344#define NFSID_DELUSERNAME 0x0010 345#define NFSID_ADDGID 0x0020 346#define NFSID_DELGID 0x0040 347#define NFSID_ADDGROUPNAME 0x0080 348#define NFSID_DELGROUPNAME 0x0100 349 350/* 351 * fs.nfs sysctl(3) identifiers 352 */ 353#define NFS_NFSSTATS 1 /* struct: struct nfsstats */ 354 355/* 356 * Here is the definition of the attribute bits array and macros that 357 * manipulate it. 358 * THE MACROS MUST BE MANUALLY MODIFIED IF NFSATTRBIT_MAXWORDS CHANGES!! 359 * It is (NFSATTRBIT_MAX + 31) / 32. 360 */ 361#define NFSATTRBIT_MAXWORDS 3 362 363typedef struct { 364 u_int32_t bits[NFSATTRBIT_MAXWORDS]; 365} nfsattrbit_t; 366 367#define NFSZERO_ATTRBIT(b) do { \ 368 (b)->bits[0] = 0; \ 369 (b)->bits[1] = 0; \ 370 (b)->bits[2] = 0; \ 371} while (0) 372 373#define NFSSET_ATTRBIT(t, f) do { \ 374 (t)->bits[0] = (f)->bits[0]; \ 375 (t)->bits[1] = (f)->bits[1]; \ 376 (t)->bits[2] = (f)->bits[2]; \ 377} while (0) 378 379#define NFSSETSUPP_ATTRBIT(b) do { \ 380 (b)->bits[0] = NFSATTRBIT_SUPP0; \ 381 (b)->bits[1] = (NFSATTRBIT_SUPP1 | NFSATTRBIT_SUPPSETONLY); \ 382 (b)->bits[2] = NFSATTRBIT_SUPP2; \ 383} while (0) 384 385#define NFSISSET_ATTRBIT(b, p) ((b)->bits[(p) / 32] & (1 << ((p) % 32))) 386#define NFSSETBIT_ATTRBIT(b, p) ((b)->bits[(p) / 32] |= (1 << ((p) % 32))) 387#define NFSCLRBIT_ATTRBIT(b, p) ((b)->bits[(p) / 32] &= ~(1 << ((p) % 32))) 388 389#define NFSCLRALL_ATTRBIT(b, a) do { \ 390 (b)->bits[0] &= ~((a)->bits[0]); \ 391 (b)->bits[1] &= ~((a)->bits[1]); \ 392 (b)->bits[2] &= ~((a)->bits[2]); \ 393} while (0) 394 395#define NFSCLRNOT_ATTRBIT(b, a) do { \ 396 (b)->bits[0] &= ((a)->bits[0]); \ 397 (b)->bits[1] &= ((a)->bits[1]); \ 398 (b)->bits[2] &= ((a)->bits[2]); \ 399} while (0) 400 401#define NFSCLRNOTFILLABLE_ATTRBIT(b) do { \ 402 (b)->bits[0] &= NFSATTRBIT_SUPP0; \ 403 (b)->bits[1] &= NFSATTRBIT_SUPP1; \ 404 (b)->bits[2] &= NFSATTRBIT_SUPP2; \ 405} while (0) 406 407#define NFSCLRNOTSETABLE_ATTRBIT(b) do { \ 408 (b)->bits[0] &= NFSATTRBIT_SETABLE0; \ 409 (b)->bits[1] &= NFSATTRBIT_SETABLE1; \ 410 (b)->bits[2] &= NFSATTRBIT_SETABLE2; \ 411} while (0) 412 413#define NFSNONZERO_ATTRBIT(b) ((b)->bits[0] || (b)->bits[1] || (b)->bits[2]) 414#define NFSEQUAL_ATTRBIT(b, p) ((b)->bits[0] == (p)->bits[0] && \ 415 (b)->bits[1] == (p)->bits[1] && (b)->bits[2] == (p)->bits[2]) 416 417#define NFSGETATTR_ATTRBIT(b) do { \ 418 (b)->bits[0] = NFSATTRBIT_GETATTR0; \ 419 (b)->bits[1] = NFSATTRBIT_GETATTR1; \ 420 (b)->bits[2] = NFSATTRBIT_GETATTR2; \ 421} while (0) 422 423#define NFSWCCATTR_ATTRBIT(b) do { \ 424 (b)->bits[0] = NFSATTRBIT_WCCATTR0; \ 425 (b)->bits[1] = NFSATTRBIT_WCCATTR1; \ 426 (b)->bits[2] = NFSATTRBIT_WCCATTR2; \ 427} while (0) 428 429#define NFSWRITEGETATTR_ATTRBIT(b) do { \ 430 (b)->bits[0] = NFSATTRBIT_WRITEGETATTR0; \ 431 (b)->bits[1] = NFSATTRBIT_WRITEGETATTR1; \ 432 (b)->bits[2] = NFSATTRBIT_WRITEGETATTR2; \ 433} while (0) 434 435#define NFSCBGETATTR_ATTRBIT(b, c) do { \ 436 (c)->bits[0] = ((b)->bits[0] & NFSATTRBIT_CBGETATTR0); \ 437 (c)->bits[1] = ((b)->bits[1] & NFSATTRBIT_CBGETATTR1); \ 438 (c)->bits[2] = ((b)->bits[2] & NFSATTRBIT_CBGETATTR2); \ 439} while (0) 440 441#define NFSPATHCONF_GETATTRBIT(b) do { \ 442 (b)->bits[0] = NFSGETATTRBIT_PATHCONF0; \ 443 (b)->bits[1] = NFSGETATTRBIT_PATHCONF1; \ 444 (b)->bits[2] = NFSGETATTRBIT_PATHCONF2; \ 445} while (0) 446 447#define NFSSTATFS_GETATTRBIT(b) do { \ 448 (b)->bits[0] = NFSGETATTRBIT_STATFS0; \ 449 (b)->bits[1] = NFSGETATTRBIT_STATFS1; \ 450 (b)->bits[2] = NFSGETATTRBIT_STATFS2; \ 451} while (0) 452 453#define NFSISSETSTATFS_ATTRBIT(b) \ 454 (((b)->bits[0] & NFSATTRBIT_STATFS0) || \ 455 ((b)->bits[1] & NFSATTRBIT_STATFS1) || \ 456 ((b)->bits[2] & NFSATTRBIT_STATFS2)) 457 458#define NFSCLRSTATFS_ATTRBIT(b) do { \ 459 (b)->bits[0] &= ~NFSATTRBIT_STATFS0; \ 460 (b)->bits[1] &= ~NFSATTRBIT_STATFS1; \ 461 (b)->bits[2] &= ~NFSATTRBIT_STATFS2; \ 462} while (0) 463 464#define NFSREADDIRPLUS_ATTRBIT(b) do { \ 465 (b)->bits[0] = NFSATTRBIT_READDIRPLUS0; \ 466 (b)->bits[1] = NFSATTRBIT_READDIRPLUS1; \ 467 (b)->bits[2] = NFSATTRBIT_READDIRPLUS2; \ 468} while (0) 469 470#define NFSREFERRAL_ATTRBIT(b) do { \ 471 (b)->bits[0] = NFSATTRBIT_REFERRAL0; \ 472 (b)->bits[1] = NFSATTRBIT_REFERRAL1; \ 473 (b)->bits[2] = NFSATTRBIT_REFERRAL2; \ 474} while (0) 475 476/* 477 * Store uid, gid creds that were used when the stateid was acquired. 478 * The RPC layer allows NFS_MAXGRPS + 1 groups to go out on the wire, 479 * so that's how many gets stored here. 480 */ 481struct nfscred { 482 uid_t nfsc_uid; 483 gid_t nfsc_groups[NFS_MAXGRPS + 1]; 484 int nfsc_ngroups; 485}; 486 487/* 488 * Constants that define the file handle for the V4 root directory. 489 * (The FSID must never be used by other file systems that are exported.) 490 */ 491#define NFSV4ROOT_FSID0 ((int32_t) -1) 492#define NFSV4ROOT_FSID1 ((int32_t) -1) 493#define NFSV4ROOT_REFERRAL ((int32_t) -2) 494#define NFSV4ROOT_INO 2 /* It's traditional */ 495#define NFSV4ROOT_GEN 1 496 497/* 498 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts. 499 * What should be in this set is open to debate, but I believe that since 500 * I/O system calls on ufs are never interrupted by signals the set should 501 * be minimal. My reasoning is that many current programs that use signals 502 * such as SIGALRM will not expect file I/O system calls to be interrupted 503 * by them and break. 504 */ 505#if defined(_KERNEL) || defined(KERNEL) 506 507struct uio; struct buf; struct vattr; struct nameidata; /* XXX */ 508 509/* 510 * Socket errors ignored for connectionless sockets? 511 * For now, ignore them all 512 */ 513#define NFSIGNORE_SOERROR(s, e) \ 514 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \ 515 ((s) & PR_CONNREQUIRED) == 0) 516 517 518/* 519 * This structure holds socket information for a connection. Used by the 520 * client and the server for callbacks. 521 */ 522struct nfssockreq { 523 NFSSOCKADDR_T nr_nam; 524 int nr_sotype; 525 int nr_soproto; 526 int nr_soflags; 527 struct ucred *nr_cred; 528 int nr_lock; 529 NFSMUTEX_T nr_mtx; 530 u_int32_t nr_prog; 531 u_int32_t nr_vers; 532 struct __rpc_client *nr_client; 533 AUTH *nr_auth; 534}; 535 536/* 537 * And associated nr_lock bits. 538 */ 539#define NFSR_SNDLOCK 0x01 540#define NFSR_WANTSND 0x02 541#define NFSR_RCVLOCK 0x04 542#define NFSR_WANTRCV 0x08 543#define NFSR_RESERVEDPORT 0x10 544#define NFSR_LOCALHOST 0x20 545 546/* 547 * Queue head for nfsreq's 548 */ 549TAILQ_HEAD(nfsreqhead, nfsreq); 550 551/* This is the only nfsreq R_xxx flag still used. */ 552#define R_DONTRECOVER 0x00000100 /* don't initiate recovery when this 553 rpc gets a stale state reply */ 554 555/* 556 * Network address hash list element 557 */ 558union nethostaddr { 559 struct in_addr had_inet; 560 struct in6_addr had_inet6; 561}; 562 563/* 564 * Structure of list of mechanisms. 565 */ 566struct nfsgss_mechlist { 567 int len; 568 const u_char *str; 569 int totlen; 570}; 571#define KERBV_MECH 0 /* position in list */ 572 573/* 574 * This structure is used by the server for describing each request. 575 */ 576struct nfsrv_descript { 577 mbuf_t nd_mrep; /* Request mbuf list */ 578 mbuf_t nd_md; /* Current dissect mbuf */ 579 mbuf_t nd_mreq; /* Reply mbuf list */ 580 mbuf_t nd_mb; /* Current build mbuf */ 581 NFSSOCKADDR_T nd_nam; /* and socket addr */ 582 NFSSOCKADDR_T nd_nam2; /* return socket addr */ 583 caddr_t nd_dpos; /* Current dissect pos */ 584 caddr_t nd_bpos; /* Current build pos */ 585 u_int16_t nd_procnum; /* RPC # */ 586 u_int32_t nd_flag; /* nd_flag */ 587 u_int32_t nd_repstat; /* Reply status */ 588 int *nd_errp; /* Pointer to ret status */ 589 u_int32_t nd_retxid; /* Reply xid */ 590 struct nfsrvcache *nd_rp; /* Assoc. cache entry */ 591 fhandle_t nd_fh; /* File handle */ 592 struct ucred *nd_cred; /* Credentials */ 593 uid_t nd_saveduid; /* Saved uid */ 594 u_int64_t nd_sockref; /* Rcv socket ref# */ 595 u_int64_t nd_compref; /* Compound RPC ref# */ 596 time_t nd_tcpconntime; /* Time TCP connection est. */ 597 nfsquad_t nd_clientid; /* Implied clientid */ 598 int nd_gssnamelen; /* principal name length */ 599 char *nd_gssname; /* principal name */ 600 uint32_t *nd_slotseq; /* ptr to slot seq# in req */ 601 uint8_t nd_sessionid[NFSX_V4SESSIONID]; /* Session id */ 602 uint32_t nd_slotid; /* Slotid for this RPC */ 603 SVCXPRT *nd_xprt; /* Server RPC handle */ 604}; 605 606#define nd_princlen nd_gssnamelen 607#define nd_principal nd_gssname 608 609/* Bits for "nd_flag" */ 610#define ND_DONTSAVEREPLY 0x00000001 611#define ND_SAVEREPLY 0x00000002 612#define ND_NFSV2 0x00000004 613#define ND_NFSV3 0x00000008 614#define ND_NFSV4 0x00000010 615#define ND_KERBV 0x00000020 616#define ND_GSSINTEGRITY 0x00000040 617#define ND_GSSPRIVACY 0x00000080 618#define ND_WINDOWVERF 0x00000100 619#define ND_GSSINITREPLY 0x00000200 620#define ND_STREAMSOCK 0x00000400 621#define ND_PUBLOOKUP 0x00000800 622#define ND_USEGSSNAME 0x00001000 623#define ND_SAMETCPCONN 0x00002000 624#define ND_IMPLIEDCLID 0x00004000 625#define ND_NOMOREDATA 0x00008000 626#define ND_V4WCCATTR 0x00010000 627#define ND_NFSCB 0x00020000 628#define ND_AUTHNONE 0x00040000 629#define ND_EXAUTHSYS 0x00080000 630#define ND_EXGSS 0x00100000 631#define ND_EXGSSINTEGRITY 0x00200000 632#define ND_EXGSSPRIVACY 0x00400000 633#define ND_INCRSEQID 0x00800000 634#define ND_NFSCL 0x01000000 635#define ND_NFSV41 0x02000000 636#define ND_HASSEQUENCE 0x04000000 637#define ND_CACHETHIS 0x08000000 638#define ND_LASTOP 0x10000000 639 640/* 641 * ND_GSS should be the "or" of all GSS type authentications. 642 */ 643#define ND_GSS (ND_KERBV) 644 645struct nfsv4_opflag { 646 int retfh; 647 int needscfh; 648 int savereply; 649 int modifyfs; 650 int lktype; 651 int needsseq; 652}; 653 654/* 655 * Flags used to indicate what to do w.r.t. seqid checking. 656 */ 657#define NFSRVSEQID_FIRST 0x01 658#define NFSRVSEQID_LAST 0x02 659#define NFSRVSEQID_OPEN 0x04 660 661/* 662 * assign a doubly linked list to a new head 663 * and prepend one list into another. 664 */ 665#define LIST_NEWHEAD(nhead, ohead, field) do { \ 666 if (((nhead)->lh_first = (ohead)->lh_first) != NULL) \ 667 (ohead)->lh_first->field.le_prev = &(nhead)->lh_first; \ 668 (ohead)->lh_first = NULL; \ 669 } while (0) 670 671#define LIST_PREPEND(head, phead, lelm, field) do { \ 672 if ((head)->lh_first != NULL) { \ 673 (lelm)->field.le_next = (head)->lh_first; \ 674 (lelm)->field.le_next->field.le_prev = \ 675 &(lelm)->field.le_next; \ 676 } \ 677 (head)->lh_first = (phead)->lh_first; \ 678 (head)->lh_first->field.le_prev = &(head)->lh_first; \ 679 } while (0) 680 681/* 682 * File handle structure for client. Malloc'd to the correct length with 683 * malloc type M_NFSFH. 684 */ 685struct nfsfh { 686 u_int16_t nfh_len; /* Length of file handle */ 687 u_int8_t nfh_fh[1]; /* and the file handle */ 688}; 689 690/* 691 * File handle structure for server. The NFSRV_MAXFH constant is 692 * set in nfsdport.h. I use a 32bit length, so that alignment is 693 * preserved. 694 */ 695struct nfsrvfh { 696 u_int32_t nfsrvfh_len; 697 u_int8_t nfsrvfh_data[NFSRV_MAXFH]; 698}; 699 700/* 701 * This structure is used for sleep locks on the NFSv4 nfsd threads and 702 * NFSv4 client data structures. 703 */ 704struct nfsv4lock { 705 u_int32_t nfslock_usecnt; 706 u_int8_t nfslock_lock; 707}; 708#define NFSV4LOCK_LOCK 0x01 709#define NFSV4LOCK_LOCKWANTED 0x02 710#define NFSV4LOCK_WANTED 0x04 711 712/* 713 * Values for the override argument for nfsvno_accchk(). 714 */ 715#define NFSACCCHK_NOOVERRIDE 0 716#define NFSACCCHK_ALLOWROOT 1 717#define NFSACCCHK_ALLOWOWNER 2 718 719/* 720 * and values for the vpislocked argument for nfsvno_accchk(). 721 */ 722#define NFSACCCHK_VPNOTLOCKED 0 723#define NFSACCCHK_VPISLOCKED 1 724 725/* 726 * Slot for the NFSv4.1 Sequence Op. 727 */ 728struct nfsslot { 729 int nfssl_inprog; 730 uint32_t nfssl_seq; 731 struct mbuf *nfssl_reply; 732}; 733 734#endif /* _KERNEL */ 735 736#endif /* _NFS_NFS_H */ 737