1 /* $NetBSD: nfs.h,v 1.1.1.1 2013/09/30 07:19:34 dholland Exp $ */ 2 /*- 3 * Copyright (c) 1989, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * Rick Macklem at The University of Guelph. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * FreeBSD: head/sys/fs/nfs/nfs.h 254925 2013-08-26 18:16:05Z jhb 34 * $NetBSD: nfs.h,v 1.1.1.1 2013/09/30 07:19:34 dholland Exp $ 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 (2 * NFS_HZ) /* Timeout in ticks */ 54 #define NFSV4_CALLBACKRETRY 5 /* Number of retries before failure */ 55 #define NFSV4_CBSLOTS 8 /* Number of slots for session */ 56 #define NFSV4_CBRETRYCNT 4 /* # of CBRecall retries upon err */ 57 #define NFSV4_UPCALLTIMEO (15 * NFS_HZ) /* Timeout in ticks for upcalls */ 58 /* to gssd or nfsuserd */ 59 #define NFSV4_UPCALLRETRY 4 /* Number of retries before failure */ 60 #define NFS_MAXWINDOW 1024 /* Max number of outstanding requests */ 61 #define NFS_RETRANS 10 /* Num of retrans for soft mounts */ 62 #define NFS_RETRANS_TCP 2 /* Num of retrans for TCP soft mounts */ 63 #define NFS_MAXGRPS 16 /* Max. size of groups list */ 64 #define NFS_TRYLATERDEL 15 /* Maximum delay timeout (sec) */ 65 #ifndef NFS_REMOVETIMEO 66 #define NFS_REMOVETIMEO 15 /* # sec to wait for delegret in local syscall */ 67 #endif 68 #ifndef NFS_MINATTRTIMO 69 #define NFS_MINATTRTIMO 5 /* Attribute cache timeout in sec */ 70 #endif 71 #ifndef NFS_MAXATTRTIMO 72 #define NFS_MAXATTRTIMO 60 73 #endif 74 #define NFS_WSIZE 8192 /* Def. write data size <= 8192 */ 75 #define NFS_RSIZE 8192 /* Def. read data size <= 8192 */ 76 #define NFS_READDIRSIZE 8192 /* Def. readdir size */ 77 #define NFS_DEFRAHEAD 1 /* Def. read ahead # blocks */ 78 #define NFS_MAXRAHEAD 16 /* Max. read ahead # blocks */ 79 #define NFS_MAXASYNCDAEMON 64 /* Max. number async_daemons runnable */ 80 #define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */ 81 #ifndef NFSRV_LEASE 82 #define NFSRV_LEASE 120 /* Lease time in seconds for V4 */ 83 #endif /* assigned to nfsrv_lease */ 84 #ifndef NFSRV_STALELEASE 85 #define NFSRV_STALELEASE (5 * nfsrv_lease) 86 #endif 87 #ifndef NFSRV_MOULDYLEASE 88 #define NFSRV_MOULDYLEASE 604800 /* One week (in sec) */ 89 #endif 90 #ifndef NFSCLIENTHASHSIZE 91 #define NFSCLIENTHASHSIZE 20 /* Size of server client hash table */ 92 #endif 93 #ifndef NFSLOCKHASHSIZE 94 #define NFSLOCKHASHSIZE 20 /* Size of server nfslock hash table */ 95 #endif 96 #define NFSSTATEHASHSIZE 10 /* Size of server stateid hash table */ 97 #ifndef NFSUSERHASHSIZE 98 #define NFSUSERHASHSIZE 30 /* Size of user id hash table */ 99 #endif 100 #ifndef NFSGROUPHASHSIZE 101 #define NFSGROUPHASHSIZE 5 /* Size of group id hash table */ 102 #endif 103 #ifndef NFSCLDELEGHIGHWATER 104 #define NFSCLDELEGHIGHWATER 10000 /* limit for client delegations */ 105 #endif 106 #ifndef NFSCLLAYOUTHIGHWATER 107 #define NFSCLLAYOUTHIGHWATER 10000 /* limit for client pNFS layouts */ 108 #endif 109 #ifndef NFSNOOPEN /* Inactive open owner (sec) */ 110 #define NFSNOOPEN 120 111 #endif 112 #define NFSRV_LEASEDELTA 15 /* # of seconds to delay beyond lease */ 113 #define NFS_IDMAXSIZE 4 /* max sizeof (in_addr_t) */ 114 #ifndef NFSRVCACHE_UDPTIMEOUT 115 #define NFSRVCACHE_UDPTIMEOUT 30 /* # of sec to hold cached rpcs(udp) */ 116 #endif 117 #ifndef NFSRVCACHE_UDPHIGHWATER 118 #define NFSRVCACHE_UDPHIGHWATER 500 /* Max # of udp cache entries */ 119 #endif 120 #ifndef NFSRVCACHE_TCPTIMEOUT 121 #define NFSRVCACHE_TCPTIMEOUT (3600*12) /*#of sec to hold cached rpcs(tcp) */ 122 #endif 123 #ifndef NFSRVCACHE_FLOODLEVEL 124 #define NFSRVCACHE_FLOODLEVEL 16384 /* Very high water mark for cache */ 125 #endif 126 #ifndef NFSRV_CLIENTHIGHWATER 127 #define NFSRV_CLIENTHIGHWATER 1000 128 #endif 129 #ifndef NFSRV_MAXDUMPLIST 130 #define NFSRV_MAXDUMPLIST 10000 131 #endif 132 #ifndef NFS_ACCESSCACHESIZE 133 #define NFS_ACCESSCACHESIZE 8 134 #endif 135 #define NFSV4_CBPORT 7745 /* Callback port for testing */ 136 137 /* 138 * This macro defines the high water mark for issuing V4 delegations. 139 * (It is currently set at a conservative 20% of NFSRV_V4STATELIMIT. This 140 * may want to increase when clients can make more effective use of 141 * delegations.) 142 */ 143 #define NFSRV_V4DELEGLIMIT(c) (((c) * 5) > NFSRV_V4STATELIMIT) 144 145 #define NFS_READDIRBLKSIZ DIRBLKSIZ /* Minimal nm_readdirsize */ 146 147 /* 148 * Oddballs 149 */ 150 #define NFS_CMPFH(n, f, s) \ 151 ((n)->n_fhp->nfh_len == (s) && !NFSBCMP((n)->n_fhp->nfh_fh, (caddr_t)(f), (s))) 152 #define NFSRV_CMPFH(nf, ns, f, s) \ 153 ((ns) == (s) && !NFSBCMP((caddr_t)(nf), (caddr_t)(f), (s))) 154 #define NFS_CMPTIME(t1, t2) \ 155 ((t1).tv_sec == (t2).tv_sec && (t1).tv_nsec == (t2).tv_nsec) 156 #define NFS_SETTIME(t) do { \ 157 (t).tv_sec = time.tv_sec; (t).tv_nsec = 1000 * time.tv_usec; } while (0) 158 #define NFS_SRVMAXDATA(n) \ 159 (((n)->nd_flag & (ND_NFSV3 | ND_NFSV4)) ? \ 160 NFS_MAXDATA : NFS_V2MAXDATA) 161 #define NFS64BITSSET 0xffffffffffffffffull 162 #define NFS64BITSMINUS1 0xfffffffffffffffeull 163 164 /* 165 * Structures for the nfssvc(2) syscall. Not that anyone but nfsd, mount_nfs 166 * and nfsloaduser should ever try and use it. 167 */ 168 struct nfsd_addsock_args { 169 int sock; /* Socket to serve */ 170 caddr_t name; /* Client addr for connection based sockets */ 171 int namelen; /* Length of name */ 172 }; 173 174 /* 175 * nfsd argument for new krpc. 176 */ 177 struct nfsd_nfsd_args { 178 const char *principal; /* GSS-API service principal name */ 179 int minthreads; /* minimum service thread count */ 180 int maxthreads; /* maximum service thread count */ 181 }; 182 183 /* 184 * Arguments for use by the callback daemon. 185 */ 186 struct nfsd_nfscbd_args { 187 const char *principal; /* GSS-API service principal name */ 188 }; 189 190 struct nfscbd_args { 191 int sock; /* Socket to serve */ 192 caddr_t name; /* Client addr for connection based sockets */ 193 int namelen; /* Length of name */ 194 u_short port; /* Port# for callbacks */ 195 }; 196 197 struct nfsd_idargs { 198 int nid_flag; /* Flags (see below) */ 199 uid_t nid_uid; /* user/group id */ 200 gid_t nid_gid; 201 int nid_usermax; /* Upper bound on user name cache */ 202 int nid_usertimeout;/* User name timeout (minutes) */ 203 u_char *nid_name; /* Name */ 204 int nid_namelen; /* and its length */ 205 }; 206 207 struct nfsd_clid { 208 int nclid_idlen; /* Length of client id */ 209 u_char nclid_id[NFSV4_OPAQUELIMIT]; /* and name */ 210 }; 211 212 struct nfsd_dumplist { 213 int ndl_size; /* Number of elements */ 214 void *ndl_list; /* and the list of elements */ 215 }; 216 217 struct nfsd_dumpclients { 218 u_int32_t ndcl_flags; /* LCL_xxx flags */ 219 u_int32_t ndcl_nopenowners; /* Number of openowners */ 220 u_int32_t ndcl_nopens; /* and opens */ 221 u_int32_t ndcl_nlockowners; /* and of lockowners */ 222 u_int32_t ndcl_nlocks; /* and of locks */ 223 u_int32_t ndcl_ndelegs; /* and of delegations */ 224 u_int32_t ndcl_nolddelegs; /* and old delegations */ 225 sa_family_t ndcl_addrfam; /* Callback address */ 226 union { 227 struct in_addr sin_addr; 228 struct in6_addr sin6_addr; 229 } ndcl_cbaddr; 230 struct nfsd_clid ndcl_clid; /* and client id */ 231 }; 232 233 struct nfsd_dumplocklist { 234 char *ndllck_fname; /* File Name */ 235 int ndllck_size; /* Number of elements */ 236 void *ndllck_list; /* and the list of elements */ 237 }; 238 239 struct nfsd_dumplocks { 240 u_int32_t ndlck_flags; /* state flags NFSLCK_xxx */ 241 nfsv4stateid_t ndlck_stateid; /* stateid */ 242 u_int64_t ndlck_first; /* lock byte range */ 243 u_int64_t ndlck_end; 244 struct nfsd_clid ndlck_owner; /* Owner of open/lock */ 245 sa_family_t ndlck_addrfam; /* Callback address */ 246 union { 247 struct in_addr sin_addr; 248 struct in6_addr sin6_addr; 249 } ndlck_cbaddr; 250 struct nfsd_clid ndlck_clid; /* and client id */ 251 }; 252 253 /* 254 * Structure for referral information. 255 */ 256 struct nfsreferral { 257 u_char *nfr_srvlist; /* List of servers */ 258 int nfr_srvcnt; /* number of servers */ 259 vnode_t nfr_vp; /* vnode for referral */ 260 u_int32_t nfr_dfileno; /* assigned dir inode# */ 261 }; 262 263 /* 264 * Flags for lc_flags and opsflags for nfsrv_getclient(). 265 */ 266 #define LCL_NEEDSCONFIRM 0x00000001 267 #define LCL_DONTCLEAN 0x00000002 268 #define LCL_WAKEUPWANTED 0x00000004 269 #define LCL_TCPCALLBACK 0x00000008 270 #define LCL_CALLBACKSON 0x00000010 271 #define LCL_INDEXNOTOK 0x00000020 272 #define LCL_STAMPEDSTABLE 0x00000040 273 #define LCL_EXPIREIT 0x00000080 274 #define LCL_CBDOWN 0x00000100 275 #define LCL_KERBV 0x00000400 276 #define LCL_NAME 0x00000800 277 #define LCL_NEEDSCBNULL 0x00001000 278 #define LCL_GSSINTEGRITY 0x00002000 279 #define LCL_GSSPRIVACY 0x00004000 280 #define LCL_ADMINREVOKED 0x00008000 281 282 #define LCL_GSS LCL_KERBV /* Or of all mechs */ 283 284 /* 285 * Bits for flags in nfslock and nfsstate. 286 * The access, deny, NFSLCK_READ and NFSLCK_WRITE bits must be defined as 287 * below, in the correct order, so the shifts work for tests. 288 */ 289 #define NFSLCK_READACCESS 0x00000001 290 #define NFSLCK_WRITEACCESS 0x00000002 291 #define NFSLCK_ACCESSBITS (NFSLCK_READACCESS | NFSLCK_WRITEACCESS) 292 #define NFSLCK_SHIFT 2 293 #define NFSLCK_READDENY 0x00000004 294 #define NFSLCK_WRITEDENY 0x00000008 295 #define NFSLCK_DENYBITS (NFSLCK_READDENY | NFSLCK_WRITEDENY) 296 #define NFSLCK_SHAREBITS \ 297 (NFSLCK_READACCESS|NFSLCK_WRITEACCESS|NFSLCK_READDENY|NFSLCK_WRITEDENY) 298 #define NFSLCK_LOCKSHIFT 4 299 #define NFSLCK_READ 0x00000010 300 #define NFSLCK_WRITE 0x00000020 301 #define NFSLCK_BLOCKING 0x00000040 302 #define NFSLCK_RECLAIM 0x00000080 303 #define NFSLCK_OPENTOLOCK 0x00000100 304 #define NFSLCK_TEST 0x00000200 305 #define NFSLCK_LOCK 0x00000400 306 #define NFSLCK_UNLOCK 0x00000800 307 #define NFSLCK_OPEN 0x00001000 308 #define NFSLCK_CLOSE 0x00002000 309 #define NFSLCK_CHECK 0x00004000 310 #define NFSLCK_RELEASE 0x00008000 311 #define NFSLCK_NEEDSCONFIRM 0x00010000 312 #define NFSLCK_CONFIRM 0x00020000 313 #define NFSLCK_DOWNGRADE 0x00040000 314 #define NFSLCK_DELEGREAD 0x00080000 315 #define NFSLCK_DELEGWRITE 0x00100000 316 #define NFSLCK_DELEGCUR 0x00200000 317 #define NFSLCK_DELEGPREV 0x00400000 318 #define NFSLCK_OLDDELEG 0x00800000 319 #define NFSLCK_DELEGRECALL 0x01000000 320 #define NFSLCK_SETATTR 0x02000000 321 #define NFSLCK_DELEGPURGE 0x04000000 322 #define NFSLCK_DELEGRETURN 0x08000000 323 324 /* And bits for nid_flag */ 325 #define NFSID_INITIALIZE 0x0001 326 #define NFSID_ADDUID 0x0002 327 #define NFSID_DELUID 0x0004 328 #define NFSID_ADDUSERNAME 0x0008 329 #define NFSID_DELUSERNAME 0x0010 330 #define NFSID_ADDGID 0x0020 331 #define NFSID_DELGID 0x0040 332 #define NFSID_ADDGROUPNAME 0x0080 333 #define NFSID_DELGROUPNAME 0x0100 334 335 /* 336 * fs.nfs sysctl(3) identifiers 337 */ 338 #define NFS_NFSSTATS 1 /* struct: struct nfsstats */ 339 340 /* 341 * Here is the definition of the attribute bits array and macros that 342 * manipulate it. 343 * THE MACROS MUST BE MANUALLY MODIFIED IF NFSATTRBIT_MAXWORDS CHANGES!! 344 * It is (NFSATTRBIT_MAX + 31) / 32. 345 */ 346 #define NFSATTRBIT_MAXWORDS 2 347 348 typedef struct { 349 u_int32_t bits[NFSATTRBIT_MAXWORDS]; 350 } nfsattrbit_t; 351 352 #define NFSZERO_ATTRBIT(b) do { (b)->bits[0] = 0; (b)->bits[1] = 0; } while (0) 353 #define NFSSET_ATTRBIT(t, f) do { (t)->bits[0] = (f)->bits[0]; \ 354 (t)->bits[1] = (f)->bits[1]; } while (0) 355 #define NFSSETSUPP_ATTRBIT(b) do { \ 356 (b)->bits[0] = NFSATTRBIT_SUPP0; \ 357 (b)->bits[1] = (NFSATTRBIT_SUPP1 | NFSATTRBIT_SUPPSETONLY); } while (0) 358 #define NFSISSET_ATTRBIT(b, p) ((b)->bits[(p) / 32] & (1 << ((p) % 32))) 359 #define NFSSETBIT_ATTRBIT(b, p) ((b)->bits[(p) / 32] |= (1 << ((p) % 32))) 360 #define NFSCLRBIT_ATTRBIT(b, p) ((b)->bits[(p) / 32] &= ~(1 << ((p) % 32))) 361 #define NFSCLRALL_ATTRBIT(b, a) do { \ 362 (b)->bits[0] &= ~((a)->bits[0]); \ 363 (b)->bits[1] &= ~((a)->bits[1]); \ 364 } while (0) 365 #define NFSCLRNOT_ATTRBIT(b, a) do { \ 366 (b)->bits[0] &= ((a)->bits[0]); \ 367 (b)->bits[1] &= ((a)->bits[1]); \ 368 } while (0) 369 #define NFSCLRNOTFILLABLE_ATTRBIT(b) do { \ 370 (b)->bits[0] &= NFSATTRBIT_SUPP0; \ 371 (b)->bits[1] &= NFSATTRBIT_SUPP1; } while (0) 372 #define NFSCLRNOTSETABLE_ATTRBIT(b) do { \ 373 (b)->bits[0] &= NFSATTRBIT_SETABLE0; \ 374 (b)->bits[1] &= NFSATTRBIT_SETABLE1; } while (0) 375 #define NFSNONZERO_ATTRBIT(b) ((b)->bits[0] || (b)->bits[1]) 376 #define NFSEQUAL_ATTRBIT(b, p) \ 377 ((b)->bits[0] == (p)->bits[0] && (b)->bits[1] == (p)->bits[1]) 378 #define NFSGETATTR_ATTRBIT(b) do { \ 379 (b)->bits[0] = NFSATTRBIT_GETATTR0; \ 380 (b)->bits[1] = NFSATTRBIT_GETATTR1; } while (0) 381 #define NFSWCCATTR_ATTRBIT(b) do { \ 382 (b)->bits[0] = NFSATTRBIT_WCCATTR0; \ 383 (b)->bits[1] = NFSATTRBIT_WCCATTR1; } while (0) 384 #define NFSWRITEGETATTR_ATTRBIT(b) do { \ 385 (b)->bits[0] = NFSATTRBIT_WRITEGETATTR0; \ 386 (b)->bits[1] = NFSATTRBIT_WRITEGETATTR1; } while (0) 387 #define NFSCBGETATTR_ATTRBIT(b, c) do { \ 388 (c)->bits[0] = ((b)->bits[0] & NFSATTRBIT_CBGETATTR0); \ 389 (c)->bits[1] = ((b)->bits[1] & NFSATTRBIT_CBGETATTR1); } while (0) 390 #define NFSPATHCONF_GETATTRBIT(b) do { \ 391 (b)->bits[0] = NFSGETATTRBIT_PATHCONF0; \ 392 (b)->bits[1] = NFSGETATTRBIT_PATHCONF1; } while (0) 393 #define NFSSTATFS_GETATTRBIT(b) do { \ 394 (b)->bits[0] = NFSGETATTRBIT_STATFS0; \ 395 (b)->bits[1] = NFSGETATTRBIT_STATFS1; } while (0) 396 #define NFSISSETSTATFS_ATTRBIT(b) \ 397 (((b)->bits[0] & NFSATTRBIT_STATFS0) || \ 398 ((b)->bits[1] & NFSATTRBIT_STATFS1)) 399 #define NFSCLRSTATFS_ATTRBIT(b) do { \ 400 (b)->bits[0] &= ~NFSATTRBIT_STATFS0; \ 401 (b)->bits[1] &= ~NFSATTRBIT_STATFS1; } while (0) 402 #define NFSREADDIRPLUS_ATTRBIT(b) do { \ 403 (b)->bits[0] = NFSATTRBIT_READDIRPLUS0; \ 404 (b)->bits[1] = NFSATTRBIT_READDIRPLUS1; } while (0) 405 #define NFSREFERRAL_ATTRBIT(b) do { \ 406 (b)->bits[0] = NFSATTRBIT_REFERRAL0; \ 407 (b)->bits[1] = NFSATTRBIT_REFERRAL1; } while (0) 408 409 /* 410 * Store uid, gid creds that were used when the stateid was acquired. 411 * The RPC layer allows NFS_MAXGRPS + 1 groups to go out on the wire, 412 * so that's how many gets stored here. 413 */ 414 struct nfscred { 415 uid_t nfsc_uid; 416 gid_t nfsc_groups[NFS_MAXGRPS + 1]; 417 int nfsc_ngroups; 418 }; 419 420 /* 421 * Constants that define the file handle for the V4 root directory. 422 * (The FSID must never be used by other file systems that are exported.) 423 */ 424 #define NFSV4ROOT_FSID0 ((int32_t) -1) 425 #define NFSV4ROOT_FSID1 ((int32_t) -1) 426 #define NFSV4ROOT_REFERRAL ((int32_t) -2) 427 #define NFSV4ROOT_INO 2 /* It's traditional */ 428 #define NFSV4ROOT_GEN 1 429 430 /* 431 * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts. 432 * What should be in this set is open to debate, but I believe that since 433 * I/O system calls on ufs are never interrupted by signals the set should 434 * be minimal. My reasoning is that many current programs that use signals 435 * such as SIGALRM will not expect file I/O system calls to be interrupted 436 * by them and break. 437 */ 438 #if defined(_KERNEL) || defined(KERNEL) 439 440 struct uio; struct buf; struct vattr; struct nameidata; /* XXX */ 441 442 /* 443 * Socket errors ignored for connectionless sockets? 444 * For now, ignore them all 445 */ 446 #define NFSIGNORE_SOERROR(s, e) \ 447 ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \ 448 ((s) & PR_CONNREQUIRED) == 0) 449 450 451 /* 452 * This structure holds socket information for a connection. Used by the 453 * client and the server for callbacks. 454 */ 455 struct nfssockreq { 456 NFSSOCKADDR_T nr_nam; 457 int nr_sotype; 458 int nr_soproto; 459 int nr_soflags; 460 struct ucred *nr_cred; 461 int nr_lock; 462 NFSMUTEX_T nr_mtx; 463 u_int32_t nr_prog; 464 u_int32_t nr_vers; 465 struct __rpc_client *nr_client; 466 AUTH *nr_auth; 467 }; 468 469 /* 470 * And associated nr_lock bits. 471 */ 472 #define NFSR_SNDLOCK 0x01 473 #define NFSR_WANTSND 0x02 474 #define NFSR_RCVLOCK 0x04 475 #define NFSR_WANTRCV 0x08 476 #define NFSR_RESERVEDPORT 0x10 477 #define NFSR_LOCALHOST 0x20 478 479 /* 480 * Queue head for nfsreq's 481 */ 482 TAILQ_HEAD(nfsreqhead, nfsreq); 483 484 /* This is the only nfsreq R_xxx flag still used. */ 485 #define R_DONTRECOVER 0x00000100 /* don't initiate recovery when this 486 rpc gets a stale state reply */ 487 488 /* 489 * Network address hash list element 490 */ 491 union nethostaddr { 492 struct in_addr had_inet; 493 struct in6_addr had_inet6; 494 }; 495 496 /* 497 * Structure of list of mechanisms. 498 */ 499 struct nfsgss_mechlist { 500 int len; 501 const u_char *str; 502 int totlen; 503 }; 504 #define KERBV_MECH 0 /* position in list */ 505 506 /* 507 * This structure is used by the server for describing each request. 508 */ 509 struct nfsrv_descript { 510 mbuf_t nd_mrep; /* Request mbuf list */ 511 mbuf_t nd_md; /* Current dissect mbuf */ 512 mbuf_t nd_mreq; /* Reply mbuf list */ 513 mbuf_t nd_mb; /* Current build mbuf */ 514 NFSSOCKADDR_T nd_nam; /* and socket addr */ 515 NFSSOCKADDR_T nd_nam2; /* return socket addr */ 516 caddr_t nd_dpos; /* Current dissect pos */ 517 caddr_t nd_bpos; /* Current build pos */ 518 u_int16_t nd_procnum; /* RPC # */ 519 u_int32_t nd_flag; /* nd_flag */ 520 u_int32_t nd_repstat; /* Reply status */ 521 int *nd_errp; /* Pointer to ret status */ 522 u_int32_t nd_retxid; /* Reply xid */ 523 struct nfsrvcache *nd_rp; /* Assoc. cache entry */ 524 fhandle_t nd_fh; /* File handle */ 525 struct ucred *nd_cred; /* Credentials */ 526 uid_t nd_saveduid; /* Saved uid */ 527 u_int64_t nd_sockref; /* Rcv socket ref# */ 528 u_int64_t nd_compref; /* Compound RPC ref# */ 529 time_t nd_tcpconntime; /* Time TCP connection est. */ 530 nfsquad_t nd_clientid; /* Implied clientid */ 531 int nd_gssnamelen; /* principal name length */ 532 char *nd_gssname; /* principal name */ 533 uint32_t *nd_slotseq; /* ptr to slot seq# in req */ 534 }; 535 536 #define nd_princlen nd_gssnamelen 537 #define nd_principal nd_gssname 538 539 /* Bits for "nd_flag" */ 540 #define ND_DONTSAVEREPLY 0x00000001 541 #define ND_SAVEREPLY 0x00000002 542 #define ND_NFSV2 0x00000004 543 #define ND_NFSV3 0x00000008 544 #define ND_NFSV4 0x00000010 545 #define ND_KERBV 0x00000020 546 #define ND_GSSINTEGRITY 0x00000040 547 #define ND_GSSPRIVACY 0x00000080 548 #define ND_WINDOWVERF 0x00000100 549 #define ND_GSSINITREPLY 0x00000200 550 #define ND_STREAMSOCK 0x00000400 551 #define ND_PUBLOOKUP 0x00000800 552 #define ND_USEGSSNAME 0x00001000 553 #define ND_SAMETCPCONN 0x00002000 554 #define ND_IMPLIEDCLID 0x00004000 555 #define ND_NOMOREDATA 0x00008000 556 #define ND_V4WCCATTR 0x00010000 557 #define ND_NFSCB 0x00020000 558 #define ND_AUTHNONE 0x00040000 559 #define ND_EXAUTHSYS 0x00080000 560 #define ND_EXGSS 0x00100000 561 #define ND_EXGSSINTEGRITY 0x00200000 562 #define ND_EXGSSPRIVACY 0x00400000 563 #define ND_INCRSEQID 0x00800000 564 #define ND_NFSCL 0x01000000 565 #define ND_NFSV41 0x02000000 566 #define ND_HASSEQUENCE 0x04000000 567 568 /* 569 * ND_GSS should be the "or" of all GSS type authentications. 570 */ 571 #define ND_GSS (ND_KERBV) 572 573 struct nfsv4_opflag { 574 int retfh; 575 int needscfh; 576 int savereply; 577 int modifyfs; 578 int lktype; 579 int needsseq; 580 }; 581 582 /* 583 * Flags used to indicate what to do w.r.t. seqid checking. 584 */ 585 #define NFSRVSEQID_FIRST 0x01 586 #define NFSRVSEQID_LAST 0x02 587 #define NFSRVSEQID_OPEN 0x04 588 589 /* 590 * assign a doubly linked list to a new head 591 * and prepend one list into another. 592 */ 593 #define LIST_NEWHEAD(nhead, ohead, field) do { \ 594 if (((nhead)->lh_first = (ohead)->lh_first) != NULL) \ 595 (ohead)->lh_first->field.le_prev = &(nhead)->lh_first; \ 596 (ohead)->lh_first = NULL; \ 597 } while (0) 598 599 #define LIST_PREPEND(head, phead, lelm, field) do { \ 600 if ((head)->lh_first != NULL) { \ 601 (lelm)->field.le_next = (head)->lh_first; \ 602 (lelm)->field.le_next->field.le_prev = \ 603 &(lelm)->field.le_next; \ 604 } \ 605 (head)->lh_first = (phead)->lh_first; \ 606 (head)->lh_first->field.le_prev = &(head)->lh_first; \ 607 } while (0) 608 609 /* 610 * File handle structure for client. Malloc'd to the correct length with 611 * malloc type M_NFSFH. 612 */ 613 struct nfsfh { 614 u_int16_t nfh_len; /* Length of file handle */ 615 u_int8_t nfh_fh[1]; /* and the file handle */ 616 }; 617 618 /* 619 * File handle structure for server. The NFSRV_MAXFH constant is 620 * set in nfsdport.h. I use a 32bit length, so that alignment is 621 * preserved. 622 */ 623 struct nfsrvfh { 624 u_int32_t nfsrvfh_len; 625 u_int8_t nfsrvfh_data[NFSRV_MAXFH]; 626 }; 627 628 /* 629 * This structure is used for sleep locks on the NFSv4 nfsd threads and 630 * NFSv4 client data structures. 631 */ 632 struct nfsv4lock { 633 u_int32_t nfslock_usecnt; 634 u_int8_t nfslock_lock; 635 }; 636 #define NFSV4LOCK_LOCK 0x01 637 #define NFSV4LOCK_LOCKWANTED 0x02 638 #define NFSV4LOCK_WANTED 0x04 639 640 /* 641 * Values for the override argument for nfsvno_accchk(). 642 */ 643 #define NFSACCCHK_NOOVERRIDE 0 644 #define NFSACCCHK_ALLOWROOT 1 645 #define NFSACCCHK_ALLOWOWNER 2 646 647 /* 648 * and values for the vpislocked argument for nfsvno_accchk(). 649 */ 650 #define NFSACCCHK_VPNOTLOCKED 0 651 #define NFSACCCHK_VPISLOCKED 1 652 653 /* 654 * Slot for the NFSv4.1 Sequence Op. 655 */ 656 struct nfsslot { 657 int nfssl_inprog; 658 uint32_t nfssl_seq; 659 struct mbuf *nfssl_reply; 660 }; 661 662 #endif /* _KERNEL */ 663 664 #endif /* _NFS_NFS_H */ 665