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 #define LCL_NFSV42 0x00100000 346 #define LCL_TLSCB 0x00200000 347 348 #define LCL_GSS LCL_KERBV /* Or of all mechs */ 349 350 /* 351 * Bits for flags in nfslock and nfsstate. 352 * The access, deny, NFSLCK_READ and NFSLCK_WRITE bits must be defined as 353 * below, in the correct order, so the shifts work for tests. 354 */ 355 #define NFSLCK_READACCESS 0x00000001 356 #define NFSLCK_WRITEACCESS 0x00000002 357 #define NFSLCK_ACCESSBITS (NFSLCK_READACCESS | NFSLCK_WRITEACCESS) 358 #define NFSLCK_SHIFT 2 359 #define NFSLCK_READDENY 0x00000004 360 #define NFSLCK_WRITEDENY 0x00000008 361 #define NFSLCK_DENYBITS (NFSLCK_READDENY | NFSLCK_WRITEDENY) 362 #define NFSLCK_SHAREBITS \ 363 (NFSLCK_READACCESS|NFSLCK_WRITEACCESS|NFSLCK_READDENY|NFSLCK_WRITEDENY) 364 #define NFSLCK_LOCKSHIFT 4 365 #define NFSLCK_READ 0x00000010 366 #define NFSLCK_WRITE 0x00000020 367 #define NFSLCK_BLOCKING 0x00000040 368 #define NFSLCK_RECLAIM 0x00000080 369 #define NFSLCK_OPENTOLOCK 0x00000100 370 #define NFSLCK_TEST 0x00000200 371 #define NFSLCK_LOCK 0x00000400 372 #define NFSLCK_UNLOCK 0x00000800 373 #define NFSLCK_OPEN 0x00001000 374 #define NFSLCK_CLOSE 0x00002000 375 #define NFSLCK_CHECK 0x00004000 376 #define NFSLCK_RELEASE 0x00008000 377 #define NFSLCK_NEEDSCONFIRM 0x00010000 378 #define NFSLCK_CONFIRM 0x00020000 379 #define NFSLCK_DOWNGRADE 0x00040000 380 #define NFSLCK_DELEGREAD 0x00080000 381 #define NFSLCK_DELEGWRITE 0x00100000 382 #define NFSLCK_DELEGCUR 0x00200000 383 #define NFSLCK_DELEGPREV 0x00400000 384 #define NFSLCK_OLDDELEG 0x00800000 385 #define NFSLCK_DELEGRECALL 0x01000000 386 #define NFSLCK_SETATTR 0x02000000 387 #define NFSLCK_DELEGPURGE 0x04000000 388 #define NFSLCK_DELEGRETURN 0x08000000 389 #define NFSLCK_WANTWDELEG 0x10000000 390 #define NFSLCK_WANTRDELEG 0x20000000 391 #define NFSLCK_WANTNODELEG 0x40000000 392 #define NFSLCK_WANTBITS \ 393 (NFSLCK_WANTWDELEG | NFSLCK_WANTRDELEG | NFSLCK_WANTNODELEG) 394 395 /* And bits for nid_flag */ 396 #define NFSID_INITIALIZE 0x0001 397 #define NFSID_ADDUID 0x0002 398 #define NFSID_DELUID 0x0004 399 #define NFSID_ADDUSERNAME 0x0008 400 #define NFSID_DELUSERNAME 0x0010 401 #define NFSID_ADDGID 0x0020 402 #define NFSID_DELGID 0x0040 403 #define NFSID_ADDGROUPNAME 0x0080 404 #define NFSID_DELGROUPNAME 0x0100 405 406 /* 407 * fs.nfs sysctl(3) identifiers 408 */ 409 #define NFS_NFSSTATS 1 /* struct: struct nfsstats */ 410 411 /* 412 * Here is the definition of the attribute bits array and macros that 413 * manipulate it. 414 * THE MACROS MUST BE MANUALLY MODIFIED IF NFSATTRBIT_MAXWORDS CHANGES!! 415 * It is (NFSATTRBIT_MAX + 31) / 32. 416 */ 417 #define NFSATTRBIT_MAXWORDS 3 418 419 typedef struct { 420 u_int32_t bits[NFSATTRBIT_MAXWORDS]; 421 } nfsattrbit_t; 422 423 #define NFSZERO_ATTRBIT(b) do { \ 424 (b)->bits[0] = 0; \ 425 (b)->bits[1] = 0; \ 426 (b)->bits[2] = 0; \ 427 } while (0) 428 429 #define NFSSET_ATTRBIT(t, f) do { \ 430 (t)->bits[0] = (f)->bits[0]; \ 431 (t)->bits[1] = (f)->bits[1]; \ 432 (t)->bits[2] = (f)->bits[2]; \ 433 } while (0) 434 435 #define NFSSETSUPP_ATTRBIT(b, n) do { \ 436 (b)->bits[0] = NFSATTRBIT_SUPP0; \ 437 (b)->bits[1] = (NFSATTRBIT_SUPP1 | NFSATTRBIT_SUPPSETONLY1); \ 438 (b)->bits[2] = (NFSATTRBIT_SUPP2 | NFSATTRBIT_SUPPSETONLY2); \ 439 if (((n)->nd_flag & ND_NFSV41) == 0) { \ 440 (b)->bits[1] &= ~NFSATTRBIT_NFSV41_1; \ 441 (b)->bits[2] &= ~NFSATTRBIT_NFSV41_2; \ 442 } \ 443 if (((n)->nd_flag & ND_NFSV42) == 0) \ 444 (b)->bits[2] &= ~NFSATTRBIT_NFSV42_2; \ 445 } while (0) 446 447 #define NFSISSET_ATTRBIT(b, p) ((b)->bits[(p) / 32] & (1 << ((p) % 32))) 448 #define NFSSETBIT_ATTRBIT(b, p) ((b)->bits[(p) / 32] |= (1 << ((p) % 32))) 449 #define NFSCLRBIT_ATTRBIT(b, p) ((b)->bits[(p) / 32] &= ~(1 << ((p) % 32))) 450 451 #define NFSCLRALL_ATTRBIT(b, a) do { \ 452 (b)->bits[0] &= ~((a)->bits[0]); \ 453 (b)->bits[1] &= ~((a)->bits[1]); \ 454 (b)->bits[2] &= ~((a)->bits[2]); \ 455 } while (0) 456 457 #define NFSCLRNOT_ATTRBIT(b, a) do { \ 458 (b)->bits[0] &= ((a)->bits[0]); \ 459 (b)->bits[1] &= ((a)->bits[1]); \ 460 (b)->bits[2] &= ((a)->bits[2]); \ 461 } while (0) 462 463 #define NFSCLRNOTFILLABLE_ATTRBIT(b, n) do { \ 464 (b)->bits[0] &= NFSATTRBIT_SUPP0; \ 465 (b)->bits[1] &= NFSATTRBIT_SUPP1; \ 466 (b)->bits[2] &= NFSATTRBIT_SUPP2; \ 467 if (((n)->nd_flag & ND_NFSV41) == 0) { \ 468 (b)->bits[1] &= ~NFSATTRBIT_NFSV41_1; \ 469 (b)->bits[2] &= ~NFSATTRBIT_NFSV41_2; \ 470 } \ 471 if (((n)->nd_flag & ND_NFSV42) == 0) \ 472 (b)->bits[2] &= ~NFSATTRBIT_NFSV42_2; \ 473 } while (0) 474 475 #define NFSCLRNOTSETABLE_ATTRBIT(b, n) do { \ 476 (b)->bits[0] &= NFSATTRBIT_SETABLE0; \ 477 (b)->bits[1] &= NFSATTRBIT_SETABLE1; \ 478 (b)->bits[2] &= NFSATTRBIT_SETABLE2; \ 479 if (((n)->nd_flag & ND_NFSV41) == 0) \ 480 (b)->bits[2] &= ~NFSATTRBIT_NFSV41_2; \ 481 if (((n)->nd_flag & ND_NFSV42) == 0) \ 482 (b)->bits[2] &= ~NFSATTRBIT_NFSV42_2; \ 483 } while (0) 484 485 #define NFSNONZERO_ATTRBIT(b) ((b)->bits[0] || (b)->bits[1] || (b)->bits[2]) 486 #define NFSEQUAL_ATTRBIT(b, p) ((b)->bits[0] == (p)->bits[0] && \ 487 (b)->bits[1] == (p)->bits[1] && (b)->bits[2] == (p)->bits[2]) 488 489 #define NFSGETATTR_ATTRBIT(b) do { \ 490 (b)->bits[0] = NFSATTRBIT_GETATTR0; \ 491 (b)->bits[1] = NFSATTRBIT_GETATTR1; \ 492 (b)->bits[2] = NFSATTRBIT_GETATTR2; \ 493 } while (0) 494 495 #define NFSWCCATTR_ATTRBIT(b) do { \ 496 (b)->bits[0] = NFSATTRBIT_WCCATTR0; \ 497 (b)->bits[1] = NFSATTRBIT_WCCATTR1; \ 498 (b)->bits[2] = NFSATTRBIT_WCCATTR2; \ 499 } while (0) 500 501 #define NFSWRITEGETATTR_ATTRBIT(b) do { \ 502 (b)->bits[0] = NFSATTRBIT_WRITEGETATTR0; \ 503 (b)->bits[1] = NFSATTRBIT_WRITEGETATTR1; \ 504 (b)->bits[2] = NFSATTRBIT_WRITEGETATTR2; \ 505 } while (0) 506 507 #define NFSCBGETATTR_ATTRBIT(b, c) do { \ 508 (c)->bits[0] = ((b)->bits[0] & NFSATTRBIT_CBGETATTR0); \ 509 (c)->bits[1] = ((b)->bits[1] & NFSATTRBIT_CBGETATTR1); \ 510 (c)->bits[2] = ((b)->bits[2] & NFSATTRBIT_CBGETATTR2); \ 511 } while (0) 512 513 #define NFSPATHCONF_GETATTRBIT(b) do { \ 514 (b)->bits[0] = NFSGETATTRBIT_PATHCONF0; \ 515 (b)->bits[1] = NFSGETATTRBIT_PATHCONF1; \ 516 (b)->bits[2] = NFSGETATTRBIT_PATHCONF2; \ 517 } while (0) 518 519 #define NFSSTATFS_GETATTRBIT(b) do { \ 520 (b)->bits[0] = NFSGETATTRBIT_STATFS0; \ 521 (b)->bits[1] = NFSGETATTRBIT_STATFS1; \ 522 (b)->bits[2] = NFSGETATTRBIT_STATFS2; \ 523 } while (0) 524 525 #define NFSISSETSTATFS_ATTRBIT(b) \ 526 (((b)->bits[0] & NFSATTRBIT_STATFS0) || \ 527 ((b)->bits[1] & NFSATTRBIT_STATFS1) || \ 528 ((b)->bits[2] & NFSATTRBIT_STATFS2)) 529 530 #define NFSCLRSTATFS_ATTRBIT(b) do { \ 531 (b)->bits[0] &= ~NFSATTRBIT_STATFS0; \ 532 (b)->bits[1] &= ~NFSATTRBIT_STATFS1; \ 533 (b)->bits[2] &= ~NFSATTRBIT_STATFS2; \ 534 } while (0) 535 536 #define NFSREADDIRPLUS_ATTRBIT(b) do { \ 537 (b)->bits[0] = NFSATTRBIT_READDIRPLUS0; \ 538 (b)->bits[1] = NFSATTRBIT_READDIRPLUS1; \ 539 (b)->bits[2] = NFSATTRBIT_READDIRPLUS2; \ 540 } while (0) 541 542 #define NFSREFERRAL_ATTRBIT(b) do { \ 543 (b)->bits[0] = NFSATTRBIT_REFERRAL0; \ 544 (b)->bits[1] = NFSATTRBIT_REFERRAL1; \ 545 (b)->bits[2] = NFSATTRBIT_REFERRAL2; \ 546 } while (0) 547 548 /* 549 * Store uid, gid creds that were used when the stateid was acquired. 550 * The RPC layer allows NFS_MAXGRPS + 1 groups to go out on the wire, 551 * so that's how many gets stored here. 552 */ 553 struct nfscred { 554 uid_t nfsc_uid; 555 gid_t nfsc_groups[NFS_MAXGRPS + 1]; 556 int nfsc_ngroups; 557 }; 558 559 /* 560 * Constants that define the file handle for the V4 root directory. 561 * (The FSID must never be used by other file systems that are exported.) 562 */ 563 #define NFSV4ROOT_FSID0 ((int32_t) -1) 564 #define NFSV4ROOT_FSID1 ((int32_t) -1) 565 #define NFSV4ROOT_REFERRAL ((int32_t) -2) 566 #define NFSV4ROOT_INO 2 /* It's traditional */ 567 #define NFSV4ROOT_GEN 1 568 569 /* 570 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts. 571 * What should be in this set is open to debate, but I believe that since 572 * I/O system calls on ufs are never interrupted by signals the set should 573 * be minimal. My reasoning is that many current programs that use signals 574 * such as SIGALRM will not expect file I/O system calls to be interrupted 575 * by them and break. 576 */ 577 #if defined(_KERNEL) || defined(KERNEL) 578 579 struct uio; struct buf; struct vattr; struct nameidata; /* XXX */ 580 581 /* 582 * Socket errors ignored for connectionless sockets? 583 * For now, ignore them all 584 */ 585 #define NFSIGNORE_SOERROR(s, e) \ 586 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \ 587 ((s) & PR_CONNREQUIRED) == 0) 588 589 /* 590 * This structure holds socket information for a connection. Used by the 591 * client and the server for callbacks. 592 */ 593 struct nfssockreq { 594 NFSSOCKADDR_T nr_nam; 595 int nr_sotype; 596 int nr_soproto; 597 int nr_soflags; 598 struct ucred *nr_cred; 599 int nr_lock; 600 NFSMUTEX_T nr_mtx; 601 u_int32_t nr_prog; 602 u_int32_t nr_vers; 603 struct __rpc_client *nr_client; 604 AUTH *nr_auth; 605 }; 606 607 /* 608 * And associated nr_lock bits. 609 */ 610 #define NFSR_SNDLOCK 0x01 611 #define NFSR_WANTSND 0x02 612 #define NFSR_RCVLOCK 0x04 613 #define NFSR_WANTRCV 0x08 614 #define NFSR_RESERVEDPORT 0x10 615 #define NFSR_LOCALHOST 0x20 616 617 /* 618 * Queue head for nfsreq's 619 */ 620 TAILQ_HEAD(nfsreqhead, nfsreq); 621 622 /* This is the only nfsreq R_xxx flag still used. */ 623 #define R_DONTRECOVER 0x00000100 /* don't initiate recovery when this 624 rpc gets a stale state reply */ 625 626 /* 627 * Network address hash list element 628 */ 629 union nethostaddr { 630 struct in_addr had_inet; 631 struct in6_addr had_inet6; 632 }; 633 634 /* 635 * Structure of list of mechanisms. 636 */ 637 struct nfsgss_mechlist { 638 int len; 639 const u_char *str; 640 int totlen; 641 }; 642 #define KERBV_MECH 0 /* position in list */ 643 644 /* 645 * This structure is used by the server for describing each request. 646 */ 647 struct nfsrv_descript { 648 struct mbuf *nd_mrep; /* Request mbuf list */ 649 struct mbuf *nd_md; /* Current dissect mbuf */ 650 struct mbuf *nd_mreq; /* Reply mbuf list */ 651 struct mbuf *nd_mb; /* Current build mbuf */ 652 NFSSOCKADDR_T nd_nam; /* and socket addr */ 653 NFSSOCKADDR_T nd_nam2; /* return socket addr */ 654 caddr_t nd_dpos; /* Current dissect pos */ 655 caddr_t nd_bpos; /* Current build pos */ 656 u_int64_t nd_flag; /* nd_flag */ 657 u_int16_t nd_procnum; /* RPC # */ 658 u_int32_t nd_repstat; /* Reply status */ 659 int *nd_errp; /* Pointer to ret status */ 660 u_int32_t nd_retxid; /* Reply xid */ 661 struct nfsrvcache *nd_rp; /* Assoc. cache entry */ 662 fhandle_t nd_fh; /* File handle */ 663 struct ucred *nd_cred; /* Credentials */ 664 uid_t nd_saveduid; /* Saved uid */ 665 u_int64_t nd_sockref; /* Rcv socket ref# */ 666 u_int64_t nd_compref; /* Compound RPC ref# */ 667 time_t nd_tcpconntime; /* Time TCP connection est. */ 668 nfsquad_t nd_clientid; /* Implied clientid */ 669 int nd_gssnamelen; /* principal name length */ 670 char *nd_gssname; /* principal name */ 671 uint32_t *nd_slotseq; /* ptr to slot seq# in req */ 672 uint8_t nd_sessionid[NFSX_V4SESSIONID]; /* Session id */ 673 uint32_t nd_slotid; /* Slotid for this RPC */ 674 SVCXPRT *nd_xprt; /* Server RPC handle */ 675 uint32_t *nd_sequence; /* Sequence Op. ptr */ 676 nfsv4stateid_t nd_curstateid; /* Current StateID */ 677 nfsv4stateid_t nd_savedcurstateid; /* Saved Current StateID */ 678 uint32_t nd_maxreq; /* Max. request (session). */ 679 uint32_t nd_maxresp; /* Max. reply (session). */ 680 int nd_bextpg; /* Current ext_pgs page */ 681 int nd_bextpgsiz; /* Bytes left in page */ 682 int nd_maxextsiz; /* Max ext_pgs mbuf size */ 683 }; 684 685 #define nd_princlen nd_gssnamelen 686 #define nd_principal nd_gssname 687 688 /* Bits for "nd_flag" */ 689 #define ND_DONTSAVEREPLY 0x00000001 690 #define ND_SAVEREPLY 0x00000002 691 #define ND_NFSV2 0x00000004 692 #define ND_NFSV3 0x00000008 693 #define ND_NFSV4 0x00000010 694 #define ND_KERBV 0x00000020 695 #define ND_GSSINTEGRITY 0x00000040 696 #define ND_GSSPRIVACY 0x00000080 697 #define ND_WINDOWVERF 0x00000100 698 #define ND_GSSINITREPLY 0x00000200 699 #define ND_STREAMSOCK 0x00000400 700 #define ND_PUBLOOKUP 0x00000800 701 #define ND_USEGSSNAME 0x00001000 702 #define ND_SAMETCPCONN 0x00002000 703 #define ND_IMPLIEDCLID 0x00004000 704 #define ND_NOMOREDATA 0x00008000 705 #define ND_V4WCCATTR 0x00010000 706 #define ND_NFSCB 0x00020000 707 #define ND_AUTHNONE 0x00040000 708 #define ND_EXAUTHSYS 0x00080000 709 #define ND_EXGSS 0x00100000 710 #define ND_EXGSSINTEGRITY 0x00200000 711 #define ND_EXGSSPRIVACY 0x00400000 712 #define ND_INCRSEQID 0x00800000 713 #define ND_NFSCL 0x01000000 714 #define ND_NFSV41 0x02000000 715 #define ND_HASSEQUENCE 0x04000000 716 #define ND_CACHETHIS 0x08000000 717 #define ND_LASTOP 0x10000000 718 #define ND_LOOPBADSESS 0x20000000 719 #define ND_DSSERVER 0x40000000 720 #define ND_CURSTATEID 0x80000000 721 #define ND_SAVEDCURSTATEID 0x100000000 722 #define ND_HASSLOTID 0x200000000 723 #define ND_NFSV42 0x400000000 724 #define ND_EXTPG 0x800000000 725 #define ND_TLS 0x1000000000 726 #define ND_TLSCERT 0x2000000000 727 #define ND_TLSCERTUSER 0x4000000000 728 #define ND_EXTLS 0x8000000000 729 #define ND_EXTLSCERT 0x10000000000 730 #define ND_EXTLSCERTUSER 0x20000000000 731 #define ND_ERELOOKUP 0x40000000000 732 733 /* 734 * ND_GSS should be the "or" of all GSS type authentications. 735 */ 736 #define ND_GSS (ND_KERBV) 737 738 struct nfsv4_opflag { 739 int retfh; 740 int needscfh; 741 int savereply; 742 int modifyfs; 743 int lktype; 744 int needsseq; 745 int loopbadsess; 746 }; 747 748 /* 749 * Flags used to indicate what to do w.r.t. seqid checking. 750 */ 751 #define NFSRVSEQID_FIRST 0x01 752 #define NFSRVSEQID_LAST 0x02 753 #define NFSRVSEQID_OPEN 0x04 754 755 /* 756 * assign a doubly linked list to a new head 757 * and prepend one list into another. 758 */ 759 #define LIST_NEWHEAD(nhead, ohead, field) do { \ 760 if (((nhead)->lh_first = (ohead)->lh_first) != NULL) \ 761 (ohead)->lh_first->field.le_prev = &(nhead)->lh_first; \ 762 (ohead)->lh_first = NULL; \ 763 } while (0) 764 765 #define LIST_PREPEND(head, phead, lelm, field) do { \ 766 if ((head)->lh_first != NULL) { \ 767 (lelm)->field.le_next = (head)->lh_first; \ 768 (lelm)->field.le_next->field.le_prev = \ 769 &(lelm)->field.le_next; \ 770 } \ 771 (head)->lh_first = (phead)->lh_first; \ 772 (head)->lh_first->field.le_prev = &(head)->lh_first; \ 773 } while (0) 774 775 /* 776 * File handle structure for client. Malloc'd to the correct length with 777 * malloc type M_NFSFH. 778 */ 779 struct nfsfh { 780 u_int16_t nfh_len; /* Length of file handle */ 781 u_int8_t nfh_fh[1]; /* and the file handle */ 782 }; 783 784 /* 785 * File handle structure for server. The NFSRV_MAXFH constant is 786 * set in nfsdport.h. I use a 32bit length, so that alignment is 787 * preserved. 788 */ 789 struct nfsrvfh { 790 u_int32_t nfsrvfh_len; 791 u_int8_t nfsrvfh_data[NFSRV_MAXFH]; 792 }; 793 794 /* 795 * This structure is used for sleep locks on the NFSv4 nfsd threads and 796 * NFSv4 client data structures. 797 */ 798 struct nfsv4lock { 799 u_int32_t nfslock_usecnt; 800 u_int8_t nfslock_lock; 801 }; 802 #define NFSV4LOCK_LOCK 0x01 803 #define NFSV4LOCK_LOCKWANTED 0x02 804 #define NFSV4LOCK_WANTED 0x04 805 806 /* 807 * Values for the override argument for nfsvno_accchk(). 808 */ 809 #define NFSACCCHK_NOOVERRIDE 0 810 #define NFSACCCHK_ALLOWROOT 1 811 #define NFSACCCHK_ALLOWOWNER 2 812 813 /* 814 * and values for the vpislocked argument for nfsvno_accchk(). 815 */ 816 #define NFSACCCHK_VPNOTLOCKED 0 817 #define NFSACCCHK_VPISLOCKED 1 818 819 /* 820 * Slot for the NFSv4.1 Sequence Op. 821 */ 822 struct nfsslot { 823 int nfssl_inprog; 824 uint32_t nfssl_seq; 825 struct mbuf *nfssl_reply; 826 }; 827 828 /* Enumerated type for nfsuserd state. */ 829 typedef enum { NOTRUNNING=0, STARTSTOP=1, RUNNING=2 } nfsuserd_state; 830 831 #endif /* _KERNEL */ 832 833 #endif /* _NFS_NFS_H */
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