Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/fs/nfs/nfs.h
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1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Rick Macklem at The University of Guelph. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * $FreeBSD$ 35 */ 36 37 #ifndef _NFS_NFS_H_ 38 #define _NFS_NFS_H_ 39 /* 40 * Tunable constants for nfs 41 */ 42 43 #define NFS_MAXIOVEC 34 44 #define NFS_TICKINTVL 500 /* Desired time for a tick (msec) */ 45 #define NFS_HZ (hz / nfscl_ticks) /* Ticks/sec */ 46 #define NFS_TIMEO (1 * NFS_HZ) /* Default timeout = 1 second */ 47 #define NFS_MINTIMEO (1 * NFS_HZ) /* Min timeout to use */ 48 #define NFS_MAXTIMEO (60 * NFS_HZ) /* Max timeout to backoff to */ 49 #define NFS_TCPTIMEO 300 /* TCP timeout */ 50 #define NFS_MAXRCVTIMEO 60 /* 1 minute in seconds */ 51 #define NFS_MINIDEMTIMEO (5 * NFS_HZ) /* Min timeout for non-idempotent ops*/ 52 #define NFS_MAXREXMIT 100 /* Stop counting after this many */ 53 #define NFSV4_CALLBACKTIMEO 800 /* Timeout in msec */ 54 #define NFSV4_CALLBACKRETRY 5 /* Number of retries before failure */ 55 #define NFSV4_SLOTS 64 /* Number of slots, fore channel */ 56 #define NFSV4_CBSLOTS 8 /* Number of slots, back channel */ 57 #define NFSV4_CBRETRYCNT 4 /* # of CBRecall retries upon err */ 58 #define NFSV4_UPCALLTIMEO (15 * NFS_HZ) /* Timeout in ticks for upcalls */ 59 /* to gssd or nfsuserd */ 60 #define NFSV4_UPCALLRETRY 4 /* Number of retries before failure */ 61 #define NFS_MAXWINDOW 1024 /* Max number of outstanding requests */ 62 #define NFS_RETRANS 10 /* Num of retrans for soft mounts */ 63 #define NFS_RETRANS_TCP 2 /* Num of retrans for TCP soft mounts */ 64 #define NFS_MAXGRPS 16 /* Max. size of groups list */ 65 #define NFS_TRYLATERDEL 15 /* Maximum delay timeout (sec) */ 66 #ifndef NFS_REMOVETIMEO 67 #define NFS_REMOVETIMEO 15 /* # sec to wait for delegret in local syscall */ 68 #endif 69 #ifndef NFS_MINATTRTIMO 70 #define NFS_MINATTRTIMO 5 /* Attribute cache timeout in sec */ 71 #endif 72 #ifndef NFS_MAXATTRTIMO 73 #define NFS_MAXATTRTIMO 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 16 /* Max. read ahead # blocks */ 80 #define NFS_MAXASYNCDAEMON 64 /* Max. number async_daemons runnable */ 81 #define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */ 82 #ifndef NFSRV_LEASE 83 #define NFSRV_LEASE 120 /* Lease time in seconds for V4 */ 84 #endif /* assigned to nfsrv_lease */ 85 #ifndef NFSRV_STALELEASE 86 #define NFSRV_STALELEASE (5 * nfsrv_lease) 87 #endif 88 #ifndef NFSRV_MOULDYLEASE 89 #define NFSRV_MOULDYLEASE 604800 /* One week (in sec) */ 90 #endif 91 #ifndef NFSCLIENTHASHSIZE 92 #define NFSCLIENTHASHSIZE 20 /* Size of server client hash table */ 93 #endif 94 #ifndef NFSLOCKHASHSIZE 95 #define NFSLOCKHASHSIZE 20 /* Size of server nfslock hash table */ 96 #endif 97 #ifndef NFSSESSIONHASHSIZE 98 #define NFSSESSIONHASHSIZE 20 /* Size of server session hash table */ 99 #endif 100 #define NFSSTATEHASHSIZE 10 /* Size of server stateid hash table */ 101 #define NFSLAYOUTHIGHWATER 1000000 /* Upper limit for # of layouts */ 102 #ifndef NFSCLDELEGHIGHWATER 103 #define NFSCLDELEGHIGHWATER 10000 /* limit for client delegations */ 104 #endif 105 #ifndef NFSCLLAYOUTHIGHWATER 106 #define NFSCLLAYOUTHIGHWATER 10000 /* limit for client pNFS layouts */ 107 #endif 108 #ifndef NFSNOOPEN /* Inactive open owner (sec) */ 109 #define NFSNOOPEN 120 110 #endif 111 #define NFSRV_LEASEDELTA 15 /* # of seconds to delay beyond lease */ 112 #define NFS_IDMAXSIZE 4 /* max sizeof (in_addr_t) */ 113 #ifndef NFSRVCACHE_UDPTIMEOUT 114 #define NFSRVCACHE_UDPTIMEOUT 30 /* # of sec to hold cached rpcs(udp) */ 115 #endif 116 #ifndef NFSRVCACHE_UDPHIGHWATER 117 #define NFSRVCACHE_UDPHIGHWATER 500 /* Max # of udp cache entries */ 118 #endif 119 #ifndef NFSRVCACHE_TCPTIMEOUT 120 #define NFSRVCACHE_TCPTIMEOUT (3600*12) /*#of sec to hold cached rpcs(tcp) */ 121 #endif 122 #ifndef NFSRVCACHE_FLOODLEVEL 123 #define NFSRVCACHE_FLOODLEVEL 16384 /* Very high water mark for cache */ 124 #endif 125 #ifndef NFSRV_CLIENTHIGHWATER 126 #define NFSRV_CLIENTHIGHWATER 1000 127 #endif 128 #ifndef NFSRV_MAXDUMPLIST 129 #define NFSRV_MAXDUMPLIST 10000 130 #endif 131 #ifndef NFS_ACCESSCACHESIZE 132 #define NFS_ACCESSCACHESIZE 8 133 #endif 134 #define NFSV4_CBPORT 7745 /* Callback port for testing */ 135 136 /* 137 * This macro defines the high water mark for issuing V4 delegations. 138 * (It is currently set at a conservative 20% of nfsrv_v4statelimit. This 139 * may want to increase when clients can make more effective use of 140 * delegations.) 141 */ 142 #define NFSRV_V4DELEGLIMIT(c) (((c) * 5) > nfsrv_v4statelimit) 143 144 #define NFS_READDIRBLKSIZ DIRBLKSIZ /* Minimal nm_readdirsize */ 145 146 /* 147 * The NFSv4 RFCs do not define an upper limit on the length of Owner and 148 * OwnerGroup strings. Since FreeBSD handles a group name > 1024bytes in 149 * length, set a generous sanity limit of 10Kbytes. 150 */ 151 #define NFSV4_MAXOWNERGROUPLEN (10 * 1024) 152 153 /* 154 * Oddballs 155 */ 156 #define NFS_CMPFH(n, f, s) \ 157 ((n)->n_fhp->nfh_len == (s) && !NFSBCMP((n)->n_fhp->nfh_fh, (caddr_t)(f), (s))) 158 #define NFSRV_CMPFH(nf, ns, f, s) \ 159 ((ns) == (s) && !NFSBCMP((caddr_t)(nf), (caddr_t)(f), (s))) 160 #define NFS_CMPTIME(t1, t2) \ 161 ((t1).tv_sec == (t2).tv_sec && (t1).tv_nsec == (t2).tv_nsec) 162 #define NFS_SETTIME(t) do { \ 163 (t).tv_sec = time.tv_sec; (t).tv_nsec = 1000 * time.tv_usec; } while (0) 164 #define NFS_SRVMAXDATA(n) \ 165 (((n)->nd_flag & (ND_NFSV3 | ND_NFSV4)) ? \ 166 NFS_SRVMAXIO : NFS_V2MAXDATA) 167 #define NFS64BITSSET 0xffffffffffffffffull 168 #define NFS64BITSMINUS1 0xfffffffffffffffeull 169 170 /* 171 * Structures for the nfssvc(2) syscall. Not that anyone but nfsd, mount_nfs 172 * and nfsloaduser should ever try and use it. 173 */ 174 struct nfsd_addsock_args { 175 int sock; /* Socket to serve */ 176 caddr_t name; /* Client addr for connection based sockets */ 177 int namelen; /* Length of name */ 178 }; 179 180 /* 181 * nfsd argument for new krpc. 182 * (New version supports pNFS, indicated by NFSSVC_NEWSTRUCT flag.) 183 */ 184 struct nfsd_nfsd_args { 185 const char *principal; /* GSS-API service principal name */ 186 int minthreads; /* minimum service thread count */ 187 int maxthreads; /* maximum service thread count */ 188 int version; /* Allow multiple variants */ 189 char *addr; /* pNFS DS addresses */ 190 int addrlen; /* Length of addrs */ 191 char *dnshost; /* DNS names for DS addresses */ 192 int dnshostlen; /* Length of DNS names */ 193 char *dspath; /* DS Mount path on MDS */ 194 int dspathlen; /* Length of DS Mount path on MDS */ 195 char *mdspath; /* MDS mount for DS path on MDS */ 196 int mdspathlen; /* Length of MDS mount for DS path on MDS */ 197 int mirrorcnt; /* Number of mirrors to create on DSs */ 198 }; 199 200 /* 201 * NFSDEV_MAXMIRRORS - Maximum level of mirroring for a DS. 202 * (Most will only put files on two DSs, but this setting allows up to 4.) 203 * NFSDEV_MAXVERS - maximum number of NFS versions supported by Flex File. 204 */ 205 #define NFSDEV_MAXMIRRORS 4 206 #define NFSDEV_MAXVERS 4 207 208 struct nfsd_pnfsd_args { 209 int op; /* Which pNFSd op to perform. */ 210 char *mdspath; /* Path of MDS file. */ 211 char *dspath; /* Path of recovered DS mounted on dir. */ 212 char *curdspath; /* Path of current DS mounted on dir. */ 213 }; 214 215 #define PNFSDOP_DELDSSERVER 1 216 #define PNFSDOP_COPYMR 2 217 #define PNFSDOP_FORCEDELDS 3 218 219 /* Old version. */ 220 struct nfsd_nfsd_oargs { 221 const char *principal; /* GSS-API service principal name */ 222 int minthreads; /* minimum service thread count */ 223 int maxthreads; /* maximum service thread count */ 224 }; 225 226 /* 227 * Arguments for use by the callback daemon. 228 */ 229 struct nfsd_nfscbd_args { 230 const char *principal; /* GSS-API service principal name */ 231 }; 232 233 struct nfscbd_args { 234 int sock; /* Socket to serve */ 235 caddr_t name; /* Client addr for connection based sockets */ 236 int namelen; /* Length of name */ 237 u_short port; /* Port# for callbacks */ 238 }; 239 240 struct nfsd_idargs { 241 int nid_flag; /* Flags (see below) */ 242 uid_t nid_uid; /* user/group id */ 243 gid_t nid_gid; 244 int nid_usermax; /* Upper bound on user name cache */ 245 int nid_usertimeout;/* User name timeout (minutes) */ 246 u_char *nid_name; /* Name */ 247 int nid_namelen; /* and its length */ 248 gid_t *nid_grps; /* and the list */ 249 int nid_ngroup; /* Size of groups list */ 250 }; 251 252 struct nfsd_oidargs { 253 int nid_flag; /* Flags (see below) */ 254 uid_t nid_uid; /* user/group id */ 255 gid_t nid_gid; 256 int nid_usermax; /* Upper bound on user name cache */ 257 int nid_usertimeout;/* User name timeout (minutes) */ 258 u_char *nid_name; /* Name */ 259 int nid_namelen; /* and its length */ 260 }; 261 262 struct nfsuserd_args { 263 sa_family_t nuserd_family; /* Address family to use */ 264 u_short nuserd_port; /* Port# */ 265 }; 266 267 struct nfsd_clid { 268 int nclid_idlen; /* Length of client id */ 269 u_char nclid_id[NFSV4_OPAQUELIMIT]; /* and name */ 270 }; 271 272 struct nfsd_dumplist { 273 int ndl_size; /* Number of elements */ 274 void *ndl_list; /* and the list of elements */ 275 }; 276 277 struct nfsd_dumpclients { 278 u_int32_t ndcl_flags; /* LCL_xxx flags */ 279 u_int32_t ndcl_nopenowners; /* Number of openowners */ 280 u_int32_t ndcl_nopens; /* and opens */ 281 u_int32_t ndcl_nlockowners; /* and of lockowners */ 282 u_int32_t ndcl_nlocks; /* and of locks */ 283 u_int32_t ndcl_ndelegs; /* and of delegations */ 284 u_int32_t ndcl_nolddelegs; /* and old delegations */ 285 sa_family_t ndcl_addrfam; /* Callback address */ 286 union { 287 struct in_addr sin_addr; 288 struct in6_addr sin6_addr; 289 } ndcl_cbaddr; 290 struct nfsd_clid ndcl_clid; /* and client id */ 291 }; 292 293 struct nfsd_dumplocklist { 294 char *ndllck_fname; /* File Name */ 295 int ndllck_size; /* Number of elements */ 296 void *ndllck_list; /* and the list of elements */ 297 }; 298 299 struct nfsd_dumplocks { 300 u_int32_t ndlck_flags; /* state flags NFSLCK_xxx */ 301 nfsv4stateid_t ndlck_stateid; /* stateid */ 302 u_int64_t ndlck_first; /* lock byte range */ 303 u_int64_t ndlck_end; 304 struct nfsd_clid ndlck_owner; /* Owner of open/lock */ 305 sa_family_t ndlck_addrfam; /* Callback address */ 306 union { 307 struct in_addr sin_addr; 308 struct in6_addr sin6_addr; 309 } ndlck_cbaddr; 310 struct nfsd_clid ndlck_clid; /* and client id */ 311 }; 312 313 /* 314 * Structure for referral information. 315 */ 316 struct nfsreferral { 317 u_char *nfr_srvlist; /* List of servers */ 318 int nfr_srvcnt; /* number of servers */ 319 vnode_t nfr_vp; /* vnode for referral */ 320 uint64_t nfr_dfileno; /* assigned dir inode# */ 321 }; 322 323 /* 324 * Flags for lc_flags and opsflags for nfsrv_getclient(). 325 */ 326 #define LCL_NEEDSCONFIRM 0x00000001 327 #define LCL_DONTCLEAN 0x00000002 328 #define LCL_WAKEUPWANTED 0x00000004 329 #define LCL_TCPCALLBACK 0x00000008 330 #define LCL_CALLBACKSON 0x00000010 331 #define LCL_INDEXNOTOK 0x00000020 332 #define LCL_STAMPEDSTABLE 0x00000040 333 #define LCL_EXPIREIT 0x00000080 334 #define LCL_CBDOWN 0x00000100 335 #define LCL_KERBV 0x00000400 336 #define LCL_NAME 0x00000800 337 #define LCL_NEEDSCBNULL 0x00001000 338 #define LCL_GSSINTEGRITY 0x00002000 339 #define LCL_GSSPRIVACY 0x00004000 340 #define LCL_ADMINREVOKED 0x00008000 341 #define LCL_RECLAIMCOMPLETE 0x00010000 342 #define LCL_NFSV41 0x00020000 343 #define LCL_DONEBINDCONN 0x00040000 344 #define LCL_RECLAIMONEFS 0x00080000 345 346 #define LCL_GSS LCL_KERBV /* Or of all mechs */ 347 348 /* 349 * Bits for flags in nfslock and nfsstate. 350 * The access, deny, NFSLCK_READ and NFSLCK_WRITE bits must be defined as 351 * below, in the correct order, so the shifts work for tests. 352 */ 353 #define NFSLCK_READACCESS 0x00000001 354 #define NFSLCK_WRITEACCESS 0x00000002 355 #define NFSLCK_ACCESSBITS (NFSLCK_READACCESS | NFSLCK_WRITEACCESS) 356 #define NFSLCK_SHIFT 2 357 #define NFSLCK_READDENY 0x00000004 358 #define NFSLCK_WRITEDENY 0x00000008 359 #define NFSLCK_DENYBITS (NFSLCK_READDENY | NFSLCK_WRITEDENY) 360 #define NFSLCK_SHAREBITS \ 361 (NFSLCK_READACCESS|NFSLCK_WRITEACCESS|NFSLCK_READDENY|NFSLCK_WRITEDENY) 362 #define NFSLCK_LOCKSHIFT 4 363 #define NFSLCK_READ 0x00000010 364 #define NFSLCK_WRITE 0x00000020 365 #define NFSLCK_BLOCKING 0x00000040 366 #define NFSLCK_RECLAIM 0x00000080 367 #define NFSLCK_OPENTOLOCK 0x00000100 368 #define NFSLCK_TEST 0x00000200 369 #define NFSLCK_LOCK 0x00000400 370 #define NFSLCK_UNLOCK 0x00000800 371 #define NFSLCK_OPEN 0x00001000 372 #define NFSLCK_CLOSE 0x00002000 373 #define NFSLCK_CHECK 0x00004000 374 #define NFSLCK_RELEASE 0x00008000 375 #define NFSLCK_NEEDSCONFIRM 0x00010000 376 #define NFSLCK_CONFIRM 0x00020000 377 #define NFSLCK_DOWNGRADE 0x00040000 378 #define NFSLCK_DELEGREAD 0x00080000 379 #define NFSLCK_DELEGWRITE 0x00100000 380 #define NFSLCK_DELEGCUR 0x00200000 381 #define NFSLCK_DELEGPREV 0x00400000 382 #define NFSLCK_OLDDELEG 0x00800000 383 #define NFSLCK_DELEGRECALL 0x01000000 384 #define NFSLCK_SETATTR 0x02000000 385 #define NFSLCK_DELEGPURGE 0x04000000 386 #define NFSLCK_DELEGRETURN 0x08000000 387 #define NFSLCK_WANTWDELEG 0x10000000 388 #define NFSLCK_WANTRDELEG 0x20000000 389 #define NFSLCK_WANTNODELEG 0x40000000 390 #define NFSLCK_WANTBITS \ 391 (NFSLCK_WANTWDELEG | NFSLCK_WANTRDELEG | NFSLCK_WANTNODELEG) 392 393 /* And bits for nid_flag */ 394 #define NFSID_INITIALIZE 0x0001 395 #define NFSID_ADDUID 0x0002 396 #define NFSID_DELUID 0x0004 397 #define NFSID_ADDUSERNAME 0x0008 398 #define NFSID_DELUSERNAME 0x0010 399 #define NFSID_ADDGID 0x0020 400 #define NFSID_DELGID 0x0040 401 #define NFSID_ADDGROUPNAME 0x0080 402 #define NFSID_DELGROUPNAME 0x0100 403 404 /* 405 * fs.nfs sysctl(3) identifiers 406 */ 407 #define NFS_NFSSTATS 1 /* struct: struct nfsstats */ 408 409 /* 410 * Here is the definition of the attribute bits array and macros that 411 * manipulate it. 412 * THE MACROS MUST BE MANUALLY MODIFIED IF NFSATTRBIT_MAXWORDS CHANGES!! 413 * It is (NFSATTRBIT_MAX + 31) / 32. 414 */ 415 #define NFSATTRBIT_MAXWORDS 3 416 417 typedef struct { 418 u_int32_t bits[NFSATTRBIT_MAXWORDS]; 419 } nfsattrbit_t; 420 421 #define NFSZERO_ATTRBIT(b) do { \ 422 (b)->bits[0] = 0; \ 423 (b)->bits[1] = 0; \ 424 (b)->bits[2] = 0; \ 425 } while (0) 426 427 #define NFSSET_ATTRBIT(t, f) do { \ 428 (t)->bits[0] = (f)->bits[0]; \ 429 (t)->bits[1] = (f)->bits[1]; \ 430 (t)->bits[2] = (f)->bits[2]; \ 431 } while (0) 432 433 #define NFSSETSUPP_ATTRBIT(b, n) do { \ 434 (b)->bits[0] = NFSATTRBIT_SUPP0; \ 435 (b)->bits[1] = (NFSATTRBIT_SUPP1 | NFSATTRBIT_SUPPSETONLY1); \ 436 (b)->bits[2] = (NFSATTRBIT_SUPP2 | NFSATTRBIT_SUPPSETONLY2); \ 437 if (((n)->nd_flag & ND_NFSV41) == 0) { \ 438 (b)->bits[1] &= ~NFSATTRBIT_NFSV41_1; \ 439 (b)->bits[2] &= ~NFSATTRBIT_NFSV41_2; \ 440 } \ 441 } while (0) 442 443 #define NFSISSET_ATTRBIT(b, p) ((b)->bits[(p) / 32] & (1 << ((p) % 32))) 444 #define NFSSETBIT_ATTRBIT(b, p) ((b)->bits[(p) / 32] |= (1 << ((p) % 32))) 445 #define NFSCLRBIT_ATTRBIT(b, p) ((b)->bits[(p) / 32] &= ~(1 << ((p) % 32))) 446 447 #define NFSCLRALL_ATTRBIT(b, a) do { \ 448 (b)->bits[0] &= ~((a)->bits[0]); \ 449 (b)->bits[1] &= ~((a)->bits[1]); \ 450 (b)->bits[2] &= ~((a)->bits[2]); \ 451 } while (0) 452 453 #define NFSCLRNOT_ATTRBIT(b, a) do { \ 454 (b)->bits[0] &= ((a)->bits[0]); \ 455 (b)->bits[1] &= ((a)->bits[1]); \ 456 (b)->bits[2] &= ((a)->bits[2]); \ 457 } while (0) 458 459 #define NFSCLRNOTFILLABLE_ATTRBIT(b, n) do { \ 460 (b)->bits[0] &= NFSATTRBIT_SUPP0; \ 461 (b)->bits[1] &= NFSATTRBIT_SUPP1; \ 462 (b)->bits[2] &= NFSATTRBIT_SUPP2; \ 463 if (((n)->nd_flag & ND_NFSV41) == 0) { \ 464 (b)->bits[1] &= ~NFSATTRBIT_NFSV41_1; \ 465 (b)->bits[2] &= ~NFSATTRBIT_NFSV41_2; \ 466 } \ 467 } while (0) 468 469 #define NFSCLRNOTSETABLE_ATTRBIT(b, n) do { \ 470 (b)->bits[0] &= NFSATTRBIT_SETABLE0; \ 471 (b)->bits[1] &= NFSATTRBIT_SETABLE1; \ 472 (b)->bits[2] &= NFSATTRBIT_SETABLE2; \ 473 if (((n)->nd_flag & ND_NFSV41) == 0) \ 474 (b)->bits[2] &= ~NFSATTRBIT_NFSV41_2; \ 475 } while (0) 476 477 #define NFSNONZERO_ATTRBIT(b) ((b)->bits[0] || (b)->bits[1] || (b)->bits[2]) 478 #define NFSEQUAL_ATTRBIT(b, p) ((b)->bits[0] == (p)->bits[0] && \ 479 (b)->bits[1] == (p)->bits[1] && (b)->bits[2] == (p)->bits[2]) 480 481 #define NFSGETATTR_ATTRBIT(b) do { \ 482 (b)->bits[0] = NFSATTRBIT_GETATTR0; \ 483 (b)->bits[1] = NFSATTRBIT_GETATTR1; \ 484 (b)->bits[2] = NFSATTRBIT_GETATTR2; \ 485 } while (0) 486 487 #define NFSWCCATTR_ATTRBIT(b) do { \ 488 (b)->bits[0] = NFSATTRBIT_WCCATTR0; \ 489 (b)->bits[1] = NFSATTRBIT_WCCATTR1; \ 490 (b)->bits[2] = NFSATTRBIT_WCCATTR2; \ 491 } while (0) 492 493 #define NFSWRITEGETATTR_ATTRBIT(b) do { \ 494 (b)->bits[0] = NFSATTRBIT_WRITEGETATTR0; \ 495 (b)->bits[1] = NFSATTRBIT_WRITEGETATTR1; \ 496 (b)->bits[2] = NFSATTRBIT_WRITEGETATTR2; \ 497 } while (0) 498 499 #define NFSCBGETATTR_ATTRBIT(b, c) do { \ 500 (c)->bits[0] = ((b)->bits[0] & NFSATTRBIT_CBGETATTR0); \ 501 (c)->bits[1] = ((b)->bits[1] & NFSATTRBIT_CBGETATTR1); \ 502 (c)->bits[2] = ((b)->bits[2] & NFSATTRBIT_CBGETATTR2); \ 503 } while (0) 504 505 #define NFSPATHCONF_GETATTRBIT(b) do { \ 506 (b)->bits[0] = NFSGETATTRBIT_PATHCONF0; \ 507 (b)->bits[1] = NFSGETATTRBIT_PATHCONF1; \ 508 (b)->bits[2] = NFSGETATTRBIT_PATHCONF2; \ 509 } while (0) 510 511 #define NFSSTATFS_GETATTRBIT(b) do { \ 512 (b)->bits[0] = NFSGETATTRBIT_STATFS0; \ 513 (b)->bits[1] = NFSGETATTRBIT_STATFS1; \ 514 (b)->bits[2] = NFSGETATTRBIT_STATFS2; \ 515 } while (0) 516 517 #define NFSISSETSTATFS_ATTRBIT(b) \ 518 (((b)->bits[0] & NFSATTRBIT_STATFS0) || \ 519 ((b)->bits[1] & NFSATTRBIT_STATFS1) || \ 520 ((b)->bits[2] & NFSATTRBIT_STATFS2)) 521 522 #define NFSCLRSTATFS_ATTRBIT(b) do { \ 523 (b)->bits[0] &= ~NFSATTRBIT_STATFS0; \ 524 (b)->bits[1] &= ~NFSATTRBIT_STATFS1; \ 525 (b)->bits[2] &= ~NFSATTRBIT_STATFS2; \ 526 } while (0) 527 528 #define NFSREADDIRPLUS_ATTRBIT(b) do { \ 529 (b)->bits[0] = NFSATTRBIT_READDIRPLUS0; \ 530 (b)->bits[1] = NFSATTRBIT_READDIRPLUS1; \ 531 (b)->bits[2] = NFSATTRBIT_READDIRPLUS2; \ 532 } while (0) 533 534 #define NFSREFERRAL_ATTRBIT(b) do { \ 535 (b)->bits[0] = NFSATTRBIT_REFERRAL0; \ 536 (b)->bits[1] = NFSATTRBIT_REFERRAL1; \ 537 (b)->bits[2] = NFSATTRBIT_REFERRAL2; \ 538 } while (0) 539 540 /* 541 * Store uid, gid creds that were used when the stateid was acquired. 542 * The RPC layer allows NFS_MAXGRPS + 1 groups to go out on the wire, 543 * so that's how many gets stored here. 544 */ 545 struct nfscred { 546 uid_t nfsc_uid; 547 gid_t nfsc_groups[NFS_MAXGRPS + 1]; 548 int nfsc_ngroups; 549 }; 550 551 /* 552 * Constants that define the file handle for the V4 root directory. 553 * (The FSID must never be used by other file systems that are exported.) 554 */ 555 #define NFSV4ROOT_FSID0 ((int32_t) -1) 556 #define NFSV4ROOT_FSID1 ((int32_t) -1) 557 #define NFSV4ROOT_REFERRAL ((int32_t) -2) 558 #define NFSV4ROOT_INO 2 /* It's traditional */ 559 #define NFSV4ROOT_GEN 1 560 561 /* 562 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts. 563 * What should be in this set is open to debate, but I believe that since 564 * I/O system calls on ufs are never interrupted by signals the set should 565 * be minimal. My reasoning is that many current programs that use signals 566 * such as SIGALRM will not expect file I/O system calls to be interrupted 567 * by them and break. 568 */ 569 #if defined(_KERNEL) || defined(KERNEL) 570 571 struct uio; struct buf; struct vattr; struct nameidata; /* XXX */ 572 573 /* 574 * Socket errors ignored for connectionless sockets? 575 * For now, ignore them all 576 */ 577 #define NFSIGNORE_SOERROR(s, e) \ 578 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \ 579 ((s) & PR_CONNREQUIRED) == 0) 580 581 582 /* 583 * This structure holds socket information for a connection. Used by the 584 * client and the server for callbacks. 585 */ 586 struct nfssockreq { 587 NFSSOCKADDR_T nr_nam; 588 int nr_sotype; 589 int nr_soproto; 590 int nr_soflags; 591 struct ucred *nr_cred; 592 int nr_lock; 593 NFSMUTEX_T nr_mtx; 594 u_int32_t nr_prog; 595 u_int32_t nr_vers; 596 struct __rpc_client *nr_client; 597 AUTH *nr_auth; 598 }; 599 600 /* 601 * And associated nr_lock bits. 602 */ 603 #define NFSR_SNDLOCK 0x01 604 #define NFSR_WANTSND 0x02 605 #define NFSR_RCVLOCK 0x04 606 #define NFSR_WANTRCV 0x08 607 #define NFSR_RESERVEDPORT 0x10 608 #define NFSR_LOCALHOST 0x20 609 610 /* 611 * Queue head for nfsreq's 612 */ 613 TAILQ_HEAD(nfsreqhead, nfsreq); 614 615 /* This is the only nfsreq R_xxx flag still used. */ 616 #define R_DONTRECOVER 0x00000100 /* don't initiate recovery when this 617 rpc gets a stale state reply */ 618 619 /* 620 * Network address hash list element 621 */ 622 union nethostaddr { 623 struct in_addr had_inet; 624 struct in6_addr had_inet6; 625 }; 626 627 /* 628 * Structure of list of mechanisms. 629 */ 630 struct nfsgss_mechlist { 631 int len; 632 const u_char *str; 633 int totlen; 634 }; 635 #define KERBV_MECH 0 /* position in list */ 636 637 /* 638 * This structure is used by the server for describing each request. 639 */ 640 struct nfsrv_descript { 641 mbuf_t nd_mrep; /* Request mbuf list */ 642 mbuf_t nd_md; /* Current dissect mbuf */ 643 mbuf_t nd_mreq; /* Reply mbuf list */ 644 mbuf_t nd_mb; /* Current build mbuf */ 645 NFSSOCKADDR_T nd_nam; /* and socket addr */ 646 NFSSOCKADDR_T nd_nam2; /* return socket addr */ 647 caddr_t nd_dpos; /* Current dissect pos */ 648 caddr_t nd_bpos; /* Current build pos */ 649 u_int64_t nd_flag; /* nd_flag */ 650 u_int16_t nd_procnum; /* RPC # */ 651 u_int32_t nd_repstat; /* Reply status */ 652 int *nd_errp; /* Pointer to ret status */ 653 u_int32_t nd_retxid; /* Reply xid */ 654 struct nfsrvcache *nd_rp; /* Assoc. cache entry */ 655 fhandle_t nd_fh; /* File handle */ 656 struct ucred *nd_cred; /* Credentials */ 657 uid_t nd_saveduid; /* Saved uid */ 658 u_int64_t nd_sockref; /* Rcv socket ref# */ 659 u_int64_t nd_compref; /* Compound RPC ref# */ 660 time_t nd_tcpconntime; /* Time TCP connection est. */ 661 nfsquad_t nd_clientid; /* Implied clientid */ 662 int nd_gssnamelen; /* principal name length */ 663 char *nd_gssname; /* principal name */ 664 uint32_t *nd_slotseq; /* ptr to slot seq# in req */ 665 uint8_t nd_sessionid[NFSX_V4SESSIONID]; /* Session id */ 666 uint32_t nd_slotid; /* Slotid for this RPC */ 667 SVCXPRT *nd_xprt; /* Server RPC handle */ 668 uint32_t *nd_sequence; /* Sequence Op. ptr */ 669 nfsv4stateid_t nd_curstateid; /* Current StateID */ 670 nfsv4stateid_t nd_savedcurstateid; /* Saved Current StateID */ 671 }; 672 673 #define nd_princlen nd_gssnamelen 674 #define nd_principal nd_gssname 675 676 /* Bits for "nd_flag" */ 677 #define ND_DONTSAVEREPLY 0x00000001 678 #define ND_SAVEREPLY 0x00000002 679 #define ND_NFSV2 0x00000004 680 #define ND_NFSV3 0x00000008 681 #define ND_NFSV4 0x00000010 682 #define ND_KERBV 0x00000020 683 #define ND_GSSINTEGRITY 0x00000040 684 #define ND_GSSPRIVACY 0x00000080 685 #define ND_WINDOWVERF 0x00000100 686 #define ND_GSSINITREPLY 0x00000200 687 #define ND_STREAMSOCK 0x00000400 688 #define ND_PUBLOOKUP 0x00000800 689 #define ND_USEGSSNAME 0x00001000 690 #define ND_SAMETCPCONN 0x00002000 691 #define ND_IMPLIEDCLID 0x00004000 692 #define ND_NOMOREDATA 0x00008000 693 #define ND_V4WCCATTR 0x00010000 694 #define ND_NFSCB 0x00020000 695 #define ND_AUTHNONE 0x00040000 696 #define ND_EXAUTHSYS 0x00080000 697 #define ND_EXGSS 0x00100000 698 #define ND_EXGSSINTEGRITY 0x00200000 699 #define ND_EXGSSPRIVACY 0x00400000 700 #define ND_INCRSEQID 0x00800000 701 #define ND_NFSCL 0x01000000 702 #define ND_NFSV41 0x02000000 703 #define ND_HASSEQUENCE 0x04000000 704 #define ND_CACHETHIS 0x08000000 705 #define ND_LASTOP 0x10000000 706 #define ND_LOOPBADSESS 0x20000000 707 #define ND_DSSERVER 0x40000000 708 #define ND_CURSTATEID 0x80000000 709 #define ND_SAVEDCURSTATEID 0x100000000 710 #define ND_HASSLOTID 0x200000000 711 712 /* 713 * ND_GSS should be the "or" of all GSS type authentications. 714 */ 715 #define ND_GSS (ND_KERBV) 716 717 struct nfsv4_opflag { 718 int retfh; 719 int needscfh; 720 int savereply; 721 int modifyfs; 722 int lktype; 723 int needsseq; 724 int loopbadsess; 725 }; 726 727 /* 728 * Flags used to indicate what to do w.r.t. seqid checking. 729 */ 730 #define NFSRVSEQID_FIRST 0x01 731 #define NFSRVSEQID_LAST 0x02 732 #define NFSRVSEQID_OPEN 0x04 733 734 /* 735 * assign a doubly linked list to a new head 736 * and prepend one list into another. 737 */ 738 #define LIST_NEWHEAD(nhead, ohead, field) do { \ 739 if (((nhead)->lh_first = (ohead)->lh_first) != NULL) \ 740 (ohead)->lh_first->field.le_prev = &(nhead)->lh_first; \ 741 (ohead)->lh_first = NULL; \ 742 } while (0) 743 744 #define LIST_PREPEND(head, phead, lelm, field) do { \ 745 if ((head)->lh_first != NULL) { \ 746 (lelm)->field.le_next = (head)->lh_first; \ 747 (lelm)->field.le_next->field.le_prev = \ 748 &(lelm)->field.le_next; \ 749 } \ 750 (head)->lh_first = (phead)->lh_first; \ 751 (head)->lh_first->field.le_prev = &(head)->lh_first; \ 752 } while (0) 753 754 /* 755 * File handle structure for client. Malloc'd to the correct length with 756 * malloc type M_NFSFH. 757 */ 758 struct nfsfh { 759 u_int16_t nfh_len; /* Length of file handle */ 760 u_int8_t nfh_fh[1]; /* and the file handle */ 761 }; 762 763 /* 764 * File handle structure for server. The NFSRV_MAXFH constant is 765 * set in nfsdport.h. I use a 32bit length, so that alignment is 766 * preserved. 767 */ 768 struct nfsrvfh { 769 u_int32_t nfsrvfh_len; 770 u_int8_t nfsrvfh_data[NFSRV_MAXFH]; 771 }; 772 773 /* 774 * This structure is used for sleep locks on the NFSv4 nfsd threads and 775 * NFSv4 client data structures. 776 */ 777 struct nfsv4lock { 778 u_int32_t nfslock_usecnt; 779 u_int8_t nfslock_lock; 780 }; 781 #define NFSV4LOCK_LOCK 0x01 782 #define NFSV4LOCK_LOCKWANTED 0x02 783 #define NFSV4LOCK_WANTED 0x04 784 785 /* 786 * Values for the override argument for nfsvno_accchk(). 787 */ 788 #define NFSACCCHK_NOOVERRIDE 0 789 #define NFSACCCHK_ALLOWROOT 1 790 #define NFSACCCHK_ALLOWOWNER 2 791 792 /* 793 * and values for the vpislocked argument for nfsvno_accchk(). 794 */ 795 #define NFSACCCHK_VPNOTLOCKED 0 796 #define NFSACCCHK_VPISLOCKED 1 797 798 /* 799 * Slot for the NFSv4.1 Sequence Op. 800 */ 801 struct nfsslot { 802 int nfssl_inprog; 803 uint32_t nfssl_seq; 804 struct mbuf *nfssl_reply; 805 }; 806 807 /* Enumerated type for nfsuserd state. */ 808 typedef enum { NOTRUNNING=0, STARTSTOP=1, RUNNING=2 } nfsuserd_state; 809 810 #endif /* _KERNEL */ 811 812 #endif /* _NFS_NFS_H */
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