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_NFSPORT_H_ 38#define _NFS_NFSPORT_H_ 39 40/* 41 * In general, I'm not fond of #includes in .h files, but this seems 42 * to be the cleanest way to handle #include files for the ports. 43 */ 44#ifdef _KERNEL 45#include <sys/unistd.h> 46#include <sys/param.h> 47#include <sys/systm.h> 48#include <sys/conf.h> 49#include <sys/dirent.h> 50#include <sys/domain.h> 51#include <sys/fcntl.h> 52#include <sys/file.h> 53#include <sys/filedesc.h> 54#include <sys/jail.h> 55#include <sys/kernel.h> 56#include <sys/lockf.h> 57#include <sys/malloc.h> 58#include <sys/mbuf.h> 59#include <sys/mount.h> 60#include <sys/mutex.h> 61#include <sys/namei.h> 62#include <sys/proc.h> 63#include <sys/protosw.h> 64#include <sys/reboot.h> 65#include <sys/resourcevar.h> 66#include <sys/signalvar.h> 67#include <sys/socket.h> 68#include <sys/socketvar.h> 69#include <sys/stat.h> 70#include <sys/syslog.h> 71#include <sys/sysproto.h> 72#include <sys/time.h> 73#include <sys/uio.h> 74#include <sys/vnode.h> 75#include <sys/bio.h> 76#include <sys/buf.h> 77#include <sys/acl.h> 78#include <sys/module.h> 79#include <sys/sysent.h> 80#include <sys/syscall.h> 81#include <sys/priv.h> 82#include <sys/kthread.h> 83#include <sys/syscallsubr.h> 84#include <net/if.h> 85#include <net/if_var.h> 86#include <net/radix.h> 87#include <net/route.h> 88#include <net/if_dl.h> 89#include <netinet/in.h> 90#include <netinet/in_pcb.h> 91#include <netinet/in_systm.h> 92#include <netinet/in_var.h> 93#include <netinet/ip.h> 94#include <netinet/ip_var.h> 95#include <netinet/tcp.h> 96#include <netinet/tcp_fsm.h> 97#include <netinet/tcp_seq.h> 98#include <netinet/tcp_timer.h> 99#include <netinet/tcp_var.h> 100#include <machine/in_cksum.h> 101#include <sys/md5.h> 102#include <rpc/rpc.h> 103#include <rpc/rpcsec_gss.h> 104 105#include <ufs/ufs/dir.h> 106#include <ufs/ufs/quota.h> 107#include <ufs/ufs/inode.h> 108#include <ufs/ufs/extattr.h> 109#include <ufs/ufs/ufsmount.h> 110#include <vm/uma.h> 111#include <vm/vm.h> 112#include <vm/pmap.h> 113#include <vm/vm_extern.h> 114#include <vm/vm_object.h> 115#include <vm/vm_page.h> 116#include <vm/vm_pageout.h> 117#include <vm/vm_param.h> 118#include <nfs/nfssvc.h> 119#include "opt_nfs.h" 120#include "opt_ufs.h" 121 122/* 123 * These types must be defined before the nfs includes. 124 */ 125#define NFSSOCKADDR_T struct sockaddr * 126#define NFSPROC_T struct thread 127#define NFSDEV_T dev_t 128#define NFSSVCARGS nfssvc_args 129#define NFSACL_T struct acl 130 131/* 132 * These should be defined as the types used for the corresponding VOP's 133 * argument type. 134 */ 135#define NFS_ACCESS_ARGS struct vop_access_args 136#define NFS_OPEN_ARGS struct vop_open_args 137#define NFS_GETATTR_ARGS struct vop_getattr_args 138#define NFS_LOOKUP_ARGS struct vop_lookup_args 139#define NFS_READDIR_ARGS struct vop_readdir_args 140 141/* 142 * Allocate mbufs. Must succeed and never set the mbuf ptr to NULL. 143 */ 144#define NFSMGET(m) do { \ 145 MGET((m), M_WAITOK, MT_DATA); \ 146 while ((m) == NULL ) { \ 147 (void) nfs_catnap(PZERO, 0, "nfsmget"); \ 148 MGET((m), M_WAITOK, MT_DATA); \ 149 } \ 150 } while (0) 151#define NFSMGETHDR(m) do { \ 152 MGETHDR((m), M_WAITOK, MT_DATA); \ 153 while ((m) == NULL ) { \ 154 (void) nfs_catnap(PZERO, 0, "nfsmget"); \ 155 MGETHDR((m), M_WAITOK, MT_DATA); \ 156 } \ 157 } while (0) 158#define NFSMCLGET(m, w) do { \ 159 MGET((m), M_WAITOK, MT_DATA); \ 160 while ((m) == NULL ) { \ 161 (void) nfs_catnap(PZERO, 0, "nfsmget"); \ 162 MGET((m), M_WAITOK, MT_DATA); \ 163 } \ 164 MCLGET((m), (w)); \ 165 } while (0) 166#define NFSMCLGETHDR(m, w) do { \ 167 MGETHDR((m), M_WAITOK, MT_DATA); \ 168 while ((m) == NULL ) { \ 169 (void) nfs_catnap(PZERO, 0, "nfsmget"); \ 170 MGETHDR((m), M_WAITOK, MT_DATA); \ 171 } \ 172 } while (0) 173 174/* 175 * Client side constant for size of a lockowner name. 176 */ 177#define NFSV4CL_LOCKNAMELEN 12 178 179/* 180 * Type for a mutex lock. 181 */ 182#define NFSMUTEX_T struct mtx 183 184#endif /* _KERNEL */ 185 186/* 187 * NFSv4 Operation numbers. 188 */ 189#define NFSV4OP_ACCESS 3 190#define NFSV4OP_CLOSE 4 191#define NFSV4OP_COMMIT 5 192#define NFSV4OP_CREATE 6 193#define NFSV4OP_DELEGPURGE 7 194#define NFSV4OP_DELEGRETURN 8 195#define NFSV4OP_GETATTR 9 196#define NFSV4OP_GETFH 10 197#define NFSV4OP_LINK 11 198#define NFSV4OP_LOCK 12 199#define NFSV4OP_LOCKT 13 200#define NFSV4OP_LOCKU 14 201#define NFSV4OP_LOOKUP 15 202#define NFSV4OP_LOOKUPP 16 203#define NFSV4OP_NVERIFY 17 204#define NFSV4OP_OPEN 18 205#define NFSV4OP_OPENATTR 19 206#define NFSV4OP_OPENCONFIRM 20 207#define NFSV4OP_OPENDOWNGRADE 21 208#define NFSV4OP_PUTFH 22 209#define NFSV4OP_PUTPUBFH 23 210#define NFSV4OP_PUTROOTFH 24 211#define NFSV4OP_READ 25 212#define NFSV4OP_READDIR 26 213#define NFSV4OP_READLINK 27 214#define NFSV4OP_REMOVE 28 215#define NFSV4OP_RENAME 29 216#define NFSV4OP_RENEW 30 217#define NFSV4OP_RESTOREFH 31 218#define NFSV4OP_SAVEFH 32 219#define NFSV4OP_SECINFO 33 220#define NFSV4OP_SETATTR 34 221#define NFSV4OP_SETCLIENTID 35 222#define NFSV4OP_SETCLIENTIDCFRM 36 223#define NFSV4OP_VERIFY 37 224#define NFSV4OP_WRITE 38 225#define NFSV4OP_RELEASELCKOWN 39 226 227/* 228 * Must be one greater than the last Operation#. 229 */ 230#define NFSV4OP_NOPS 40 231 232/* 233 * Additional Ops for NFSv4.1. 234 */ 235#define NFSV4OP_BACKCHANNELCTL 40 236#define NFSV4OP_BINDCONNTOSESS 41 237#define NFSV4OP_EXCHANGEID 42 238#define NFSV4OP_CREATESESSION 43 239#define NFSV4OP_DESTROYSESSION 44 240#define NFSV4OP_FREESTATEID 45 241#define NFSV4OP_GETDIRDELEG 46 242#define NFSV4OP_GETDEVINFO 47 243#define NFSV4OP_GETDEVLIST 48 244#define NFSV4OP_LAYOUTCOMMIT 49 245#define NFSV4OP_LAYOUTGET 50 246#define NFSV4OP_LAYOUTRETURN 51 247#define NFSV4OP_SECINFONONAME 52 248#define NFSV4OP_SEQUENCE 53 249#define NFSV4OP_SETSSV 54 250#define NFSV4OP_TESTSTATEID 55 251#define NFSV4OP_WANTDELEG 56 252#define NFSV4OP_DESTROYCLIENTID 57 253#define NFSV4OP_RECLAIMCOMPL 58 254 255/* 256 * Must be one more than last op#. 257 */ 258#define NFSV41_NOPS 59 259 260/* 261 * Additional operations for NFSv4.2. 262 */ 263#define NFSV4OP_ALLOCATE 59 264#define NFSV4OP_COPY 60 265#define NFSV4OP_COPYNOTIFY 61 266#define NFSV4OP_DEALLOCATE 62 267#define NFSV4OP_IOADVISE 63 268#define NFSV4OP_LAYOUTERROR 64 269#define NFSV4OP_LAYOUTSTATS 65 270#define NFSV4OP_OFFLOADCANCEL 66 271#define NFSV4OP_OFFLOADSTATUS 67 272#define NFSV4OP_READPLUS 68 273#define NFSV4OP_SEEK 69 274#define NFSV4OP_WRITESAME 70 275#define NFSV4OP_CLONE 71 276 277/* One greater than the last Operation # defined in RFC-7862. */ 278#define NFSV42_PURENOPS 72 279 280/* and the optional Extended attribute operations (RFC-8276). */ 281#define NFSV4OP_GETXATTR 72 282#define NFSV4OP_SETXATTR 73 283#define NFSV4OP_LISTXATTRS 74 284#define NFSV4OP_REMOVEXATTR 75 285 286/* 287 * Must be one more than the last NFSv4.2 op#. 288 */ 289#define NFSV42_NOPS 76 290 291/* Quirky case if the illegal op code */ 292#define NFSV4OP_OPILLEGAL 10044 293 294/* 295 * Fake NFSV4OP_xxx used for nfsstat. Start at NFSV42_NOPS. 296 */ 297#define NFSV4OP_SYMLINK (NFSV42_NOPS) 298#define NFSV4OP_MKDIR (NFSV42_NOPS + 1) 299#define NFSV4OP_RMDIR (NFSV42_NOPS + 2) 300#define NFSV4OP_READDIRPLUS (NFSV42_NOPS + 3) 301#define NFSV4OP_MKNOD (NFSV42_NOPS + 4) 302#define NFSV4OP_FSSTAT (NFSV42_NOPS + 5) 303#define NFSV4OP_FSINFO (NFSV42_NOPS + 6) 304#define NFSV4OP_PATHCONF (NFSV42_NOPS + 7) 305#define NFSV4OP_V3CREATE (NFSV42_NOPS + 8) 306 307/* 308 * This is the count of the fake operations listed above. 309 */ 310#define NFSV4OP_FAKENOPS 9 311 312/* 313 * and the Callback OPs 314 */ 315#define NFSV4OP_CBGETATTR 3 316#define NFSV4OP_CBRECALL 4 317 318/* 319 * Must be one greater than the last Callback Operation# for NFSv4.0. 320 */ 321#define NFSV4OP_CBNOPS 5 322 323/* 324 * Additional Callback Ops for NFSv4.1 only. 325 */ 326#define NFSV4OP_CBLAYOUTRECALL 5 327#define NFSV4OP_CBNOTIFY 6 328#define NFSV4OP_CBPUSHDELEG 7 329#define NFSV4OP_CBRECALLANY 8 330#define NFSV4OP_CBRECALLOBJAVAIL 9 331#define NFSV4OP_CBRECALLSLOT 10 332#define NFSV4OP_CBSEQUENCE 11 333#define NFSV4OP_CBWANTCANCELLED 12 334#define NFSV4OP_CBNOTIFYLOCK 13 335#define NFSV4OP_CBNOTIFYDEVID 14 336 337#define NFSV41_CBNOPS 15 338 339/* 340 * Additional callback operations for NFSv4.2. 341 */ 342#define NFSV4OP_CBOFFLOAD 15 343 344#define NFSV42_CBNOPS 16 345 346/* 347 * The lower numbers -> 21 are used by NFSv2 and v3. These define higher 348 * numbers used by NFSv4. 349 * NFS_V3NPROCS is one greater than the last V3 op and NFS_NPROCS is 350 * one greater than the last number. 351 */ 352#ifndef NFS_V3NPROCS 353#define NFS_V3NPROCS 22 354 355#define NFSPROC_LOOKUPP 22 356#define NFSPROC_SETCLIENTID 23 357#define NFSPROC_SETCLIENTIDCFRM 24 358#define NFSPROC_LOCK 25 359#define NFSPROC_LOCKU 26 360#define NFSPROC_OPEN 27 361#define NFSPROC_CLOSE 28 362#define NFSPROC_OPENCONFIRM 29 363#define NFSPROC_LOCKT 30 364#define NFSPROC_OPENDOWNGRADE 31 365#define NFSPROC_RENEW 32 366#define NFSPROC_PUTROOTFH 33 367#define NFSPROC_RELEASELCKOWN 34 368#define NFSPROC_DELEGRETURN 35 369#define NFSPROC_RETDELEGREMOVE 36 370#define NFSPROC_RETDELEGRENAME1 37 371#define NFSPROC_RETDELEGRENAME2 38 372#define NFSPROC_GETACL 39 373#define NFSPROC_SETACL 40 374 375/* 376 * Must be defined as one higher than the last Proc# above. 377 */ 378#define NFSV4_NPROCS 41 379 380/* Additional procedures for NFSv4.1. */ 381#define NFSPROC_EXCHANGEID 41 382#define NFSPROC_CREATESESSION 42 383#define NFSPROC_DESTROYSESSION 43 384#define NFSPROC_DESTROYCLIENT 44 385#define NFSPROC_FREESTATEID 45 386#define NFSPROC_LAYOUTGET 46 387#define NFSPROC_GETDEVICEINFO 47 388#define NFSPROC_LAYOUTCOMMIT 48 389#define NFSPROC_LAYOUTRETURN 49 390#define NFSPROC_RECLAIMCOMPL 50 391#define NFSPROC_WRITEDS 51 392#define NFSPROC_READDS 52 393#define NFSPROC_COMMITDS 53 394#define NFSPROC_OPENLAYGET 54 395#define NFSPROC_CREATELAYGET 55 396 397/* 398 * Must be defined as one higher than the last NFSv4.1 Proc# above. 399 */ 400#define NFSV41_NPROCS 56 401 402/* Additional procedures for NFSv4.2. */ 403#define NFSPROC_IOADVISE 56 404#define NFSPROC_ALLOCATE 57 405#define NFSPROC_COPY 58 406#define NFSPROC_SEEK 59 407#define NFSPROC_SEEKDS 60 408 409/* and the ones for the optional Extended attribute support (RFC-8276). */ 410#define NFSPROC_GETEXTATTR 61 411#define NFSPROC_SETEXTATTR 62 412#define NFSPROC_RMEXTATTR 63 413#define NFSPROC_LISTEXTATTR 64 414 415/* BindConnectionToSession, done by the krpc for a new connection. */ 416#define NFSPROC_BINDCONNTOSESS 65 417 418/* 419 * Must be defined as one higher than the last NFSv4.2 Proc# above. 420 */ 421#define NFSV42_NPROCS 66 422 423#endif /* NFS_V3NPROCS */ 424 425/* 426 * Newest stats structure. 427 * The vers field will be set to NFSSTATS_V1 by the caller. 428 */ 429#define NFSSTATS_V1 2 430struct nfsstatsv1 { 431 int vers; /* Set to version requested by caller. */ 432 uint64_t attrcache_hits; 433 uint64_t attrcache_misses; 434 uint64_t lookupcache_hits; 435 uint64_t lookupcache_misses; 436 uint64_t direofcache_hits; 437 uint64_t direofcache_misses; 438 uint64_t accesscache_hits; 439 uint64_t accesscache_misses; 440 uint64_t biocache_reads; 441 uint64_t read_bios; 442 uint64_t read_physios; 443 uint64_t biocache_writes; 444 uint64_t write_bios; 445 uint64_t write_physios; 446 uint64_t biocache_readlinks; 447 uint64_t readlink_bios; 448 uint64_t biocache_readdirs; 449 uint64_t readdir_bios; 450 uint64_t rpccnt[NFSV42_NPROCS + 14]; 451 uint64_t rpcretries; 452 uint64_t srvrpccnt[NFSV42_NOPS + NFSV4OP_FAKENOPS + 15]; 453 uint64_t reserved_0; 454 uint64_t reserved_1; 455 uint64_t rpcrequests; 456 uint64_t rpctimeouts; 457 uint64_t rpcunexpected; 458 uint64_t rpcinvalid; 459 uint64_t srvcache_inproghits; 460 uint64_t reserved_2; 461 uint64_t srvcache_nonidemdonehits; 462 uint64_t srvcache_misses; 463 uint64_t srvcache_tcppeak; 464 int srvcache_size; /* Updated by atomic_xx_int(). */ 465 uint64_t srvclients; 466 uint64_t srvopenowners; 467 uint64_t srvopens; 468 uint64_t srvlockowners; 469 uint64_t srvlocks; 470 uint64_t srvdelegates; 471 uint64_t cbrpccnt[NFSV42_CBNOPS + 10]; 472 uint64_t clopenowners; 473 uint64_t clopens; 474 uint64_t cllockowners; 475 uint64_t cllocks; 476 uint64_t cldelegates; 477 uint64_t cllocalopenowners; 478 uint64_t cllocalopens; 479 uint64_t cllocallockowners; 480 uint64_t cllocallocks; 481 uint64_t srvstartcnt; 482 uint64_t srvdonecnt; 483 uint64_t srvbytes[NFSV42_NOPS + NFSV4OP_FAKENOPS + 15]; 484 uint64_t srvops[NFSV42_NOPS + NFSV4OP_FAKENOPS + 15]; 485 struct bintime srvduration[NFSV42_NOPS + NFSV4OP_FAKENOPS + 15]; 486 struct bintime busyfrom; 487 struct bintime busytime; 488}; 489 490/* 491 * Newer stats structure. 492 * The vers field will be set to NFSSTATS_OV1 by the caller. 493 */ 494#define NFSSTATS_OV1 1 495struct nfsstatsov1 { 496 int vers; /* Set to version requested by caller. */ 497 uint64_t attrcache_hits; 498 uint64_t attrcache_misses; 499 uint64_t lookupcache_hits; 500 uint64_t lookupcache_misses; 501 uint64_t direofcache_hits; 502 uint64_t direofcache_misses; 503 uint64_t accesscache_hits; 504 uint64_t accesscache_misses; 505 uint64_t biocache_reads; 506 uint64_t read_bios; 507 uint64_t read_physios; 508 uint64_t biocache_writes; 509 uint64_t write_bios; 510 uint64_t write_physios; 511 uint64_t biocache_readlinks; 512 uint64_t readlink_bios; 513 uint64_t biocache_readdirs; 514 uint64_t readdir_bios; 515 uint64_t rpccnt[NFSV42_NPROCS + 3]; 516 uint64_t rpcretries; 517 uint64_t srvrpccnt[NFSV42_PURENOPS + NFSV4OP_FAKENOPS]; 518 uint64_t reserved_0; 519 uint64_t reserved_1; 520 uint64_t rpcrequests; 521 uint64_t rpctimeouts; 522 uint64_t rpcunexpected; 523 uint64_t rpcinvalid; 524 uint64_t srvcache_inproghits; 525 uint64_t reserved_2; 526 uint64_t srvcache_nonidemdonehits; 527 uint64_t srvcache_misses; 528 uint64_t srvcache_tcppeak; 529 int srvcache_size; /* Updated by atomic_xx_int(). */ 530 uint64_t srvclients; 531 uint64_t srvopenowners; 532 uint64_t srvopens; 533 uint64_t srvlockowners; 534 uint64_t srvlocks; 535 uint64_t srvdelegates; 536 uint64_t cbrpccnt[NFSV42_CBNOPS]; 537 uint64_t clopenowners; 538 uint64_t clopens; 539 uint64_t cllockowners; 540 uint64_t cllocks; 541 uint64_t cldelegates; 542 uint64_t cllocalopenowners; 543 uint64_t cllocalopens; 544 uint64_t cllocallockowners; 545 uint64_t cllocallocks; 546 uint64_t srvstartcnt; 547 uint64_t srvdonecnt; 548 uint64_t srvbytes[NFSV42_PURENOPS + NFSV4OP_FAKENOPS]; 549 uint64_t srvops[NFSV42_PURENOPS + NFSV4OP_FAKENOPS]; 550 struct bintime srvduration[NFSV42_PURENOPS + NFSV4OP_FAKENOPS]; 551 struct bintime busyfrom; 552 struct bintime busytime; 553}; 554 555/* 556 * Old stats structure. 557 */ 558struct ext_nfsstats { 559 int attrcache_hits; 560 int attrcache_misses; 561 int lookupcache_hits; 562 int lookupcache_misses; 563 int direofcache_hits; 564 int direofcache_misses; 565 int accesscache_hits; 566 int accesscache_misses; 567 int biocache_reads; 568 int read_bios; 569 int read_physios; 570 int biocache_writes; 571 int write_bios; 572 int write_physios; 573 int biocache_readlinks; 574 int readlink_bios; 575 int biocache_readdirs; 576 int readdir_bios; 577 int rpccnt[NFSV4_NPROCS]; 578 int rpcretries; 579 int srvrpccnt[NFSV4OP_NOPS + NFSV4OP_FAKENOPS]; 580 int reserved_0; 581 int reserved_1; 582 int rpcrequests; 583 int rpctimeouts; 584 int rpcunexpected; 585 int rpcinvalid; 586 int srvcache_inproghits; 587 int reserved_2; 588 int srvcache_nonidemdonehits; 589 int srvcache_misses; 590 int srvcache_tcppeak; 591 int srvcache_size; 592 int srvclients; 593 int srvopenowners; 594 int srvopens; 595 int srvlockowners; 596 int srvlocks; 597 int srvdelegates; 598 int cbrpccnt[NFSV4OP_CBNOPS]; 599 int clopenowners; 600 int clopens; 601 int cllockowners; 602 int cllocks; 603 int cldelegates; 604 int cllocalopenowners; 605 int cllocalopens; 606 int cllocallockowners; 607 int cllocallocks; 608}; 609 610#ifdef _KERNEL 611/* 612 * Define NFS_NPROCS as NFSV4_NPROCS for the experimental kernel code. 613 */ 614#ifndef NFS_NPROCS 615#define NFS_NPROCS NFSV4_NPROCS 616#endif 617 618#include <fs/nfs/nfskpiport.h> 619#include <fs/nfs/nfsdport.h> 620#include <fs/nfs/rpcv2.h> 621#include <fs/nfs/nfsproto.h> 622#include <fs/nfs/nfs.h> 623#include <fs/nfs/nfsclstate.h> 624#include <fs/nfs/nfs_var.h> 625#include <fs/nfs/nfsm_subs.h> 626#include <fs/nfs/nfsrvcache.h> 627#include <fs/nfs/nfsrvstate.h> 628#include <fs/nfs/xdr_subs.h> 629#include <fs/nfs/nfscl.h> 630#include <nfsclient/nfsargs.h> 631#include <fs/nfsclient/nfsmount.h> 632 633/* 634 * Just to keep nfs_var.h happy. 635 */ 636struct nfs_vattr { 637 int junk; 638}; 639 640struct nfsvattr { 641 struct vattr na_vattr; 642 nfsattrbit_t na_suppattr; 643 u_int64_t na_mntonfileno; 644 u_int64_t na_filesid[2]; 645}; 646 647#define na_type na_vattr.va_type 648#define na_mode na_vattr.va_mode 649#define na_nlink na_vattr.va_nlink 650#define na_uid na_vattr.va_uid 651#define na_gid na_vattr.va_gid 652#define na_fsid na_vattr.va_fsid 653#define na_fileid na_vattr.va_fileid 654#define na_size na_vattr.va_size 655#define na_blocksize na_vattr.va_blocksize 656#define na_atime na_vattr.va_atime 657#define na_mtime na_vattr.va_mtime 658#define na_ctime na_vattr.va_ctime 659#define na_btime na_vattr.va_birthtime 660#define na_gen na_vattr.va_gen 661#define na_flags na_vattr.va_flags 662#define na_rdev na_vattr.va_rdev 663#define na_bytes na_vattr.va_bytes 664#define na_filerev na_vattr.va_filerev 665#define na_vaflags na_vattr.va_vaflags 666 667#include <fs/nfsclient/nfsnode.h> 668 669/* 670 * This is the header structure used for the lists, etc. (It has the 671 * above record in it. 672 */ 673struct nfsrv_stablefirst { 674 LIST_HEAD(, nfsrv_stable) nsf_head; /* Head of nfsrv_stable list */ 675 time_t nsf_eograce; /* Time grace period ends */ 676 time_t *nsf_bootvals; /* Previous boottime values */ 677 struct file *nsf_fp; /* File table pointer */ 678 u_char nsf_flags; /* NFSNSF_ flags */ 679 struct nfsf_rec nsf_rec; /* and above first record */ 680}; 681#define nsf_lease nsf_rec.lease 682#define nsf_numboots nsf_rec.numboots 683 684/* NFSNSF_xxx flags */ 685#define NFSNSF_UPDATEDONE 0x01 686#define NFSNSF_GRACEOVER 0x02 687#define NFSNSF_NEEDLOCK 0x04 688#define NFSNSF_EXPIREDCLIENT 0x08 689#define NFSNSF_NOOPENS 0x10 690#define NFSNSF_OK 0x20 691 692/* 693 * Maximum number of boot times allowed in record. Although there is 694 * really no need for a fixed upper bound, this serves as a sanity check 695 * for a corrupted file. 696 */ 697#define NFSNSF_MAXNUMBOOTS 10000 698 699/* 700 * This structure defines the other records in the file. The 701 * nst_client array is actually the size of the client string name. 702 */ 703struct nfst_rec { 704 u_int16_t len; 705 u_char flag; 706 u_char client[1]; 707}; 708/* and the values for flag */ 709#define NFSNST_NEWSTATE 0x1 710#define NFSNST_REVOKE 0x2 711#define NFSNST_GOTSTATE 0x4 712#define NFSNST_RECLAIMED 0x8 713 714/* 715 * This structure is linked onto nfsrv_stablefirst for the duration of 716 * reclaim. 717 */ 718struct nfsrv_stable { 719 LIST_ENTRY(nfsrv_stable) nst_list; 720 struct nfsclient *nst_clp; 721 struct nfst_rec nst_rec; 722}; 723#define nst_timestamp nst_rec.timestamp 724#define nst_len nst_rec.len 725#define nst_flag nst_rec.flag 726#define nst_client nst_rec.client 727 728/* 729 * At some point the server will run out of kernel storage for 730 * state structures. For FreeBSD5.2, this results in a panic 731 * kmem_map is full. It happens at well over 1000000 opens plus 732 * locks on a PIII-800 with 256Mbytes, so that is where I've set 733 * the limit. If your server panics due to too many opens/locks, 734 * decrease the size of NFSRV_V4STATELIMIT. If you find the server 735 * returning NFS4ERR_RESOURCE a lot and have lots of memory, try 736 * increasing it. 737 */ 738#define NFSRV_V4STATELIMIT 500000 /* Max # of Opens + Locks */ 739 740/* 741 * The type required differs with BSDen (just the second arg). 742 */ 743void nfsrvd_rcv(struct socket *, void *, int); 744 745/* 746 * Macros for handling socket addresses. (Hopefully this makes the code 747 * more portable, since I've noticed some 'BSD don't have sockaddrs in 748 * mbufs any more.) 749 */ 750#define NFSSOCKADDR(a, t) ((t)(a)) 751#define NFSSOCKADDRSIZE(a, s) ((a)->sa_len = (s)) 752 753/* 754 * These should be defined as a process or thread structure, as required 755 * for signal handling, etc. 756 */ 757#define NFSNEWCRED(c) (crdup(c)) 758#define NFSPROCCRED(p) ((p)->td_ucred) 759#define NFSFREECRED(c) (crfree(c)) 760#define NFSUIOPROC(u, p) ((u)->uio_td = NULL) 761#define NFSPROCP(p) ((p)->td_proc) 762 763/* 764 * Define these so that cn_hash and its length is ignored. 765 */ 766#define NFSCNHASHZERO(c) 767#define NFSCNHASH(c, v) 768#define NCHNAMLEN 9999999 769 770/* 771 * These macros are defined to initialize and set the timer routine. 772 */ 773#define NFS_TIMERINIT \ 774 newnfs_timer(NULL) 775 776/* 777 * Handle SMP stuff: 778 */ 779#define NFSSTATESPINLOCK extern struct mtx nfs_state_mutex 780#define NFSLOCKSTATE() mtx_lock(&nfs_state_mutex) 781#define NFSUNLOCKSTATE() mtx_unlock(&nfs_state_mutex) 782#define NFSSTATEMUTEXPTR (&nfs_state_mutex) 783#define NFSREQSPINLOCK extern struct mtx nfs_req_mutex 784#define NFSLOCKREQ() mtx_lock(&nfs_req_mutex) 785#define NFSUNLOCKREQ() mtx_unlock(&nfs_req_mutex) 786#define NFSSOCKMUTEX extern struct mtx nfs_slock_mutex 787#define NFSSOCKMUTEXPTR (&nfs_slock_mutex) 788#define NFSLOCKSOCK() mtx_lock(&nfs_slock_mutex) 789#define NFSUNLOCKSOCK() mtx_unlock(&nfs_slock_mutex) 790#define NFSNAMEIDMUTEX extern struct mtx nfs_nameid_mutex 791#define NFSNAMEIDMUTEXPTR (&nfs_nameid_mutex) 792#define NFSLOCKNAMEID() mtx_lock(&nfs_nameid_mutex) 793#define NFSUNLOCKNAMEID() mtx_unlock(&nfs_nameid_mutex) 794#define NFSNAMEIDREQUIRED() mtx_assert(&nfs_nameid_mutex, MA_OWNED) 795#define NFSCLSTATEMUTEX extern struct mtx nfs_clstate_mutex 796#define NFSCLSTATEMUTEXPTR (&nfs_clstate_mutex) 797#define NFSLOCKCLSTATE() mtx_lock(&nfs_clstate_mutex) 798#define NFSUNLOCKCLSTATE() mtx_unlock(&nfs_clstate_mutex) 799#define NFSDLOCKMUTEX extern struct mtx newnfsd_mtx 800#define NFSDLOCKMUTEXPTR (&newnfsd_mtx) 801#define NFSD_LOCK() mtx_lock(&newnfsd_mtx) 802#define NFSD_UNLOCK() mtx_unlock(&newnfsd_mtx) 803#define NFSD_LOCK_ASSERT() mtx_assert(&newnfsd_mtx, MA_OWNED) 804#define NFSD_UNLOCK_ASSERT() mtx_assert(&newnfsd_mtx, MA_NOTOWNED) 805#define NFSV4ROOTLOCKMUTEX extern struct mtx nfs_v4root_mutex 806#define NFSV4ROOTLOCKMUTEXPTR (&nfs_v4root_mutex) 807#define NFSLOCKV4ROOTMUTEX() mtx_lock(&nfs_v4root_mutex) 808#define NFSUNLOCKV4ROOTMUTEX() mtx_unlock(&nfs_v4root_mutex) 809#define NFSLOCKNODE(n) mtx_lock(&((n)->n_mtx)) 810#define NFSUNLOCKNODE(n) mtx_unlock(&((n)->n_mtx)) 811#define NFSASSERTNODE(n) mtx_assert(&((n)->n_mtx), MA_OWNED) 812#define NFSLOCKMNT(m) mtx_lock(&((m)->nm_mtx)) 813#define NFSUNLOCKMNT(m) mtx_unlock(&((m)->nm_mtx)) 814#define NFSLOCKIOD() mtx_lock(&ncl_iod_mutex) 815#define NFSUNLOCKIOD() mtx_unlock(&ncl_iod_mutex) 816#define NFSASSERTIOD() mtx_assert(&ncl_iod_mutex, MA_OWNED) 817#define NFSLOCKREQUEST(r) mtx_lock(&((r)->r_mtx)) 818#define NFSUNLOCKREQUEST(r) mtx_unlock(&((r)->r_mtx)) 819#define NFSLOCKSOCKREQ(r) mtx_lock(&((r)->nr_mtx)) 820#define NFSUNLOCKSOCKREQ(r) mtx_unlock(&((r)->nr_mtx)) 821#define NFSLOCKDS(d) mtx_lock(&((d)->nfsclds_mtx)) 822#define NFSUNLOCKDS(d) mtx_unlock(&((d)->nfsclds_mtx)) 823#define NFSSESSIONMUTEXPTR(s) (&((s)->mtx)) 824#define NFSLOCKSESSION(s) mtx_lock(&((s)->mtx)) 825#define NFSUNLOCKSESSION(s) mtx_unlock(&((s)->mtx)) 826#define NFSLAYOUTMUTEXPTR(l) (&((l)->mtx)) 827#define NFSLOCKLAYOUT(l) mtx_lock(&((l)->mtx)) 828#define NFSUNLOCKLAYOUT(l) mtx_unlock(&((l)->mtx)) 829#define NFSDDSMUTEXPTR (&nfsrv_dslock_mtx) 830#define NFSDDSLOCK() mtx_lock(&nfsrv_dslock_mtx) 831#define NFSDDSUNLOCK() mtx_unlock(&nfsrv_dslock_mtx) 832#define NFSDDONTLISTMUTEXPTR (&nfsrv_dontlistlock_mtx) 833#define NFSDDONTLISTLOCK() mtx_lock(&nfsrv_dontlistlock_mtx) 834#define NFSDDONTLISTUNLOCK() mtx_unlock(&nfsrv_dontlistlock_mtx) 835#define NFSDRECALLMUTEXPTR (&nfsrv_recalllock_mtx) 836#define NFSDRECALLLOCK() mtx_lock(&nfsrv_recalllock_mtx) 837#define NFSDRECALLUNLOCK() mtx_unlock(&nfsrv_recalllock_mtx) 838 839/* 840 * Use these macros to initialize/free a mutex. 841 */ 842#define NFSINITSOCKMUTEX(m) mtx_init((m), "nfssock", NULL, MTX_DEF) 843#define NFSFREEMUTEX(m) mtx_destroy((m)) 844 845int nfsmsleep(void *, void *, int, const char *, struct timespec *); 846 847/* 848 * And weird vm stuff in the nfs server. 849 */ 850#define PDIRUNLOCK 0x0 851#define MAX_COMMIT_COUNT (1024 * 1024) 852 853/* 854 * Define these to handle the type of va_rdev. 855 */ 856#define NFSMAKEDEV(m, n) makedev((m), (n)) 857#define NFSMAJOR(d) major(d) 858#define NFSMINOR(d) minor(d) 859 860/* 861 * The vnode tag for nfsv4root. 862 */ 863#define VT_NFSV4ROOT "nfsv4root" 864 865/* 866 * Define whatever it takes to do a vn_rdwr(). 867 */ 868#define NFSD_RDWR(r, v, b, l, o, s, i, c, a, p) \ 869 vn_rdwr((r), (v), (b), (l), (o), (s), (i), (c), NULL, (a), (p)) 870 871/* 872 * Macros for handling memory for different BSDen. 873 * NFSBCOPY(src, dst, len) - copies len bytes, non-overlapping 874 * NFSOVBCOPY(src, dst, len) - ditto, but data areas might overlap 875 * NFSBCMP(cp1, cp2, len) - compare len bytes, return 0 if same 876 * NFSBZERO(cp, len) - set len bytes to 0x0 877 */ 878#define NFSBCOPY(s, d, l) bcopy((s), (d), (l)) 879#define NFSOVBCOPY(s, d, l) ovbcopy((s), (d), (l)) 880#define NFSBCMP(s, d, l) bcmp((s), (d), (l)) 881#define NFSBZERO(s, l) bzero((s), (l)) 882 883/* 884 * Some queue.h files don't have these dfined in them. 885 */ 886#ifndef LIST_END 887#define LIST_END(head) NULL 888#define SLIST_END(head) NULL 889#define TAILQ_END(head) NULL 890#endif 891 892/* 893 * This must be defined to be a global variable that increments once 894 * per second, but never stops or goes backwards, even when a "date" 895 * command changes the TOD clock. It is used for delta times for 896 * leases, etc. 897 */ 898#define NFSD_MONOSEC time_uptime 899 900/* 901 * Declare the malloc types. 902 */ 903MALLOC_DECLARE(M_NEWNFSRVCACHE); 904MALLOC_DECLARE(M_NEWNFSDCLIENT); 905MALLOC_DECLARE(M_NEWNFSDSTATE); 906MALLOC_DECLARE(M_NEWNFSDLOCK); 907MALLOC_DECLARE(M_NEWNFSDLOCKFILE); 908MALLOC_DECLARE(M_NEWNFSSTRING); 909MALLOC_DECLARE(M_NEWNFSUSERGROUP); 910MALLOC_DECLARE(M_NEWNFSDREQ); 911MALLOC_DECLARE(M_NEWNFSFH); 912MALLOC_DECLARE(M_NEWNFSCLOWNER); 913MALLOC_DECLARE(M_NEWNFSCLOPEN); 914MALLOC_DECLARE(M_NEWNFSCLDELEG); 915MALLOC_DECLARE(M_NEWNFSCLCLIENT); 916MALLOC_DECLARE(M_NEWNFSCLLOCKOWNER); 917MALLOC_DECLARE(M_NEWNFSCLLOCK); 918MALLOC_DECLARE(M_NEWNFSDIROFF); 919MALLOC_DECLARE(M_NEWNFSV4NODE); 920MALLOC_DECLARE(M_NEWNFSDIRECTIO); 921MALLOC_DECLARE(M_NEWNFSMNT); 922MALLOC_DECLARE(M_NEWNFSDROLLBACK); 923MALLOC_DECLARE(M_NEWNFSLAYOUT); 924MALLOC_DECLARE(M_NEWNFSFLAYOUT); 925MALLOC_DECLARE(M_NEWNFSDEVINFO); 926MALLOC_DECLARE(M_NEWNFSSOCKREQ); 927MALLOC_DECLARE(M_NEWNFSCLDS); 928MALLOC_DECLARE(M_NEWNFSLAYRECALL); 929MALLOC_DECLARE(M_NEWNFSDSESSION); 930#define M_NFSRVCACHE M_NEWNFSRVCACHE 931#define M_NFSDCLIENT M_NEWNFSDCLIENT 932#define M_NFSDSTATE M_NEWNFSDSTATE 933#define M_NFSDLOCK M_NEWNFSDLOCK 934#define M_NFSDLOCKFILE M_NEWNFSDLOCKFILE 935#define M_NFSSTRING M_NEWNFSSTRING 936#define M_NFSUSERGROUP M_NEWNFSUSERGROUP 937#define M_NFSDREQ M_NEWNFSDREQ 938#define M_NFSFH M_NEWNFSFH 939#define M_NFSCLOWNER M_NEWNFSCLOWNER 940#define M_NFSCLOPEN M_NEWNFSCLOPEN 941#define M_NFSCLDELEG M_NEWNFSCLDELEG 942#define M_NFSCLCLIENT M_NEWNFSCLCLIENT 943#define M_NFSCLLOCKOWNER M_NEWNFSCLLOCKOWNER 944#define M_NFSCLLOCK M_NEWNFSCLLOCK 945#define M_NFSDIROFF M_NEWNFSDIROFF 946#define M_NFSV4NODE M_NEWNFSV4NODE 947#define M_NFSDIRECTIO M_NEWNFSDIRECTIO 948#define M_NFSDROLLBACK M_NEWNFSDROLLBACK 949#define M_NFSLAYOUT M_NEWNFSLAYOUT 950#define M_NFSFLAYOUT M_NEWNFSFLAYOUT 951#define M_NFSDEVINFO M_NEWNFSDEVINFO 952#define M_NFSSOCKREQ M_NEWNFSSOCKREQ 953#define M_NFSCLDS M_NEWNFSCLDS 954#define M_NFSLAYRECALL M_NEWNFSLAYRECALL 955#define M_NFSDSESSION M_NEWNFSDSESSION 956 957#define NFSINT_SIGMASK(set) \ 958 (SIGISMEMBER(set, SIGINT) || SIGISMEMBER(set, SIGTERM) || \ 959 SIGISMEMBER(set, SIGHUP) || SIGISMEMBER(set, SIGKILL) || \ 960 SIGISMEMBER(set, SIGQUIT)) 961 962/* 963 * Convert a quota block count to byte count. 964 */ 965#define NFSQUOTABLKTOBYTE(q, b) (q) *= (b) 966 967/* 968 * Define this as the largest file size supported. (It should probably 969 * be available via a VFS_xxx Op, but it isn't. 970 */ 971#define NFSRV_MAXFILESIZE ((u_int64_t)0x800000000000) 972 973/* 974 * Set this macro to index() or strchr(), whichever is supported. 975 */ 976#define STRCHR(s, c) strchr((s), (c)) 977 978/* 979 * Set the n_time in the client write rpc, as required. 980 */ 981#define NFSWRITERPC_SETTIME(w, n, a, v4) \ 982 do { \ 983 if (w) { \ 984 NFSLOCKNODE(n); \ 985 (n)->n_mtime = (a)->na_mtime; \ 986 if (v4) \ 987 (n)->n_change = (a)->na_filerev; \ 988 NFSUNLOCKNODE(n); \ 989 } \ 990 } while (0) 991 992/* 993 * Fake value, just to make the client work. 994 */ 995#define NFS_LATTR_NOSHRINK 1 996 997/* 998 * Prototypes for functions where the arguments vary for different ports. 999 */ 1000int nfscl_loadattrcache(struct vnode **, struct nfsvattr *, void *, void *, 1001 int, int); 1002int newnfs_realign(struct mbuf **, int); 1003bool ncl_pager_setsize(struct vnode *vp, u_quad_t *nsizep); 1004void ncl_copy_vattr(struct vattr *dst, struct vattr *src); 1005 1006/* 1007 * If the port runs on an SMP box that can enforce Atomic ops with low 1008 * overheads, define these as atomic increments/decrements. If not, 1009 * don't worry about it, since these are used for stats that can be 1010 * "out by one" without disastrous consequences. 1011 */ 1012#define NFSINCRGLOBAL(a) ((a)++) 1013#define NFSDECRGLOBAL(a) ((a)--) 1014 1015/* 1016 * Assorted funky stuff to make things work under Darwin8. 1017 */ 1018/* 1019 * These macros checks for a field in vattr being set. 1020 */ 1021#define NFSATTRISSET(t, v, a) ((v)->a != (t)VNOVAL) 1022#define NFSATTRISSETTIME(v, a) ((v)->a.tv_sec != VNOVAL) 1023 1024/* 1025 * Manipulate mount flags. 1026 */ 1027#define NFSSTA_HASWRITEVERF 0x00040000 /* Has write verifier */ 1028#define NFSSTA_GOTFSINFO 0x00100000 /* Got the fsinfo */ 1029#define NFSSTA_OPENMODE 0x00200000 /* Must use correct open mode */ 1030#define NFSSTA_FLEXFILE 0x00800000 /* Use Flex File Layout */ 1031#define NFSSTA_NOLAYOUTCOMMIT 0x04000000 /* Don't do LayoutCommit */ 1032#define NFSSTA_SESSPERSIST 0x08000000 /* Has a persistent session */ 1033#define NFSSTA_TIMEO 0x10000000 /* Experiencing a timeout */ 1034#define NFSSTA_LOCKTIMEO 0x20000000 /* Experiencing a lockd timeout */ 1035#define NFSSTA_HASSETFSID 0x40000000 /* Has set the fsid */ 1036#define NFSSTA_PNFS 0x80000000 /* pNFS is enabled */ 1037 1038#define NFSHASNFSV3(n) ((n)->nm_flag & NFSMNT_NFSV3) 1039#define NFSHASNFSV4(n) ((n)->nm_flag & NFSMNT_NFSV4) 1040#define NFSHASNFSV4N(n) ((n)->nm_minorvers > 0) 1041#define NFSHASNFSV3OR4(n) ((n)->nm_flag & (NFSMNT_NFSV3 | NFSMNT_NFSV4)) 1042#define NFSHASGOTFSINFO(n) ((n)->nm_state & NFSSTA_GOTFSINFO) 1043#define NFSHASHASSETFSID(n) ((n)->nm_state & NFSSTA_HASSETFSID) 1044#define NFSHASSTRICT3530(n) ((n)->nm_flag & NFSMNT_STRICT3530) 1045#define NFSHASWRITEVERF(n) ((n)->nm_state & NFSSTA_HASWRITEVERF) 1046#define NFSHASINT(n) ((n)->nm_flag & NFSMNT_INT) 1047#define NFSHASSOFT(n) ((n)->nm_flag & NFSMNT_SOFT) 1048#define NFSHASINTORSOFT(n) ((n)->nm_flag & (NFSMNT_INT | NFSMNT_SOFT)) 1049#define NFSHASDUMBTIMR(n) ((n)->nm_flag & NFSMNT_DUMBTIMR) 1050#define NFSHASNOCONN(n) ((n)->nm_flag & NFSMNT_MNTD) 1051#define NFSHASKERB(n) ((n)->nm_flag & NFSMNT_KERB) 1052#define NFSHASALLGSSNAME(n) ((n)->nm_flag & NFSMNT_ALLGSSNAME) 1053#define NFSHASINTEGRITY(n) ((n)->nm_flag & NFSMNT_INTEGRITY) 1054#define NFSHASPRIVACY(n) ((n)->nm_flag & NFSMNT_PRIVACY) 1055#define NFSSETWRITEVERF(n) ((n)->nm_state |= NFSSTA_HASWRITEVERF) 1056#define NFSSETHASSETFSID(n) ((n)->nm_state |= NFSSTA_HASSETFSID) 1057#define NFSHASPNFSOPT(n) ((n)->nm_flag & NFSMNT_PNFS) 1058#define NFSHASNOLAYOUTCOMMIT(n) ((n)->nm_state & NFSSTA_NOLAYOUTCOMMIT) 1059#define NFSHASSESSPERSIST(n) ((n)->nm_state & NFSSTA_SESSPERSIST) 1060#define NFSHASPNFS(n) ((n)->nm_state & NFSSTA_PNFS) 1061#define NFSHASFLEXFILE(n) ((n)->nm_state & NFSSTA_FLEXFILE) 1062#define NFSHASOPENMODE(n) ((n)->nm_state & NFSSTA_OPENMODE) 1063#define NFSHASONEOPENOWN(n) (((n)->nm_flag & NFSMNT_ONEOPENOWN) != 0 && \ 1064 (n)->nm_minorvers > 0) 1065#define NFSHASTLS(n) (((n)->nm_newflag & NFSMNT_TLS) != 0) 1066 1067/* 1068 * Set boottime. 1069 */ 1070#define NFSSETBOOTTIME(b) (getboottime(&b)) 1071 1072/* 1073 * The size of directory blocks in the buffer cache. 1074 * MUST BE in the range of PAGE_SIZE <= NFS_DIRBLKSIZ <= MAXBSIZE!! 1075 */ 1076#define NFS_DIRBLKSIZ (16 * DIRBLKSIZ) /* Must be a multiple of DIRBLKSIZ */ 1077 1078/* 1079 * Define these macros to access mnt_flag fields. 1080 */ 1081#define NFSMNT_RDONLY(m) ((m)->mnt_flag & MNT_RDONLY) 1082#endif /* _KERNEL */ 1083 1084/* 1085 * Define a structure similar to ufs_args for use in exporting the V4 root. 1086 */ 1087struct nfsex_args { 1088 char *fspec; 1089 struct export_args export; 1090}; 1091 1092struct nfsex_oldargs { 1093 char *fspec; 1094 struct o2export_args export; 1095}; 1096 1097/* 1098 * These export flags should be defined, but there are no bits left. 1099 * Maybe a separate mnt_exflag field could be added or the mnt_flag 1100 * field increased to 64 bits? 1101 */ 1102#ifndef MNT_EXSTRICTACCESS 1103#define MNT_EXSTRICTACCESS 0x0 1104#endif 1105#ifndef MNT_EXV4ONLY 1106#define MNT_EXV4ONLY 0x0 1107#endif 1108 1109#ifdef _KERNEL 1110/* 1111 * Define this to invalidate the attribute cache for the nfs node. 1112 */ 1113#define NFSINVALATTRCACHE(n) ((n)->n_attrstamp = 0) 1114 1115/* Used for FreeBSD only */ 1116void nfsd_mntinit(void); 1117 1118/* 1119 * Define these for vnode lock/unlock ops. 1120 * 1121 * These are good abstractions to macro out, so that they can be added to 1122 * later, for debugging or stats, etc. 1123 */ 1124#define NFSVOPLOCK(v, f) vn_lock((v), (f)) 1125#define NFSVOPUNLOCK(v) VOP_UNLOCK((v)) 1126#define NFSVOPISLOCKED(v) VOP_ISLOCKED((v)) 1127 1128/* 1129 * Define ncl_hash(). 1130 */ 1131#define ncl_hash(f, l) (fnv_32_buf((f), (l), FNV1_32_INIT)) 1132 1133int newnfs_iosize(struct nfsmount *); 1134 1135int newnfs_vncmpf(struct vnode *, void *); 1136 1137#ifndef NFS_MINDIRATTRTIMO 1138#define NFS_MINDIRATTRTIMO 3 /* VDIR attrib cache timeout in sec */ 1139#endif 1140#ifndef NFS_MAXDIRATTRTIMO 1141#define NFS_MAXDIRATTRTIMO 60 1142#endif 1143 1144/* 1145 * Nfs outstanding request list element 1146 */ 1147struct nfsreq { 1148 TAILQ_ENTRY(nfsreq) r_chain; 1149 u_int32_t r_flags; /* flags on request, see below */ 1150 struct nfsmount *r_nmp; /* Client mnt ptr */ 1151 struct mtx r_mtx; /* Mutex lock for this structure */ 1152}; 1153 1154#ifndef NFS_MAXBSIZE 1155#define NFS_MAXBSIZE (maxbcachebuf) 1156#endif 1157 1158/* 1159 * This macro checks to see if issuing of delegations is allowed for this 1160 * vnode. 1161 */ 1162#ifdef VV_DISABLEDELEG 1163#define NFSVNO_DELEGOK(v) \ 1164 ((v) == NULL || ((v)->v_vflag & VV_DISABLEDELEG) == 0) 1165#else 1166#define NFSVNO_DELEGOK(v) (1) 1167#endif 1168 1169/* 1170 * Name used by getnewvnode() to describe filesystem, "nfs". 1171 * For performance reasons it is useful to have the same string 1172 * used in both places that call getnewvnode(). 1173 */ 1174extern const char nfs_vnode_tag[]; 1175 1176/* 1177 * Check for the errors that indicate a DS should be disabled. 1178 * ENXIO indicates that the krpc cannot do an RPC on the DS. 1179 * EIO is returned by the RPC as an indication of I/O problems on the 1180 * server. 1181 * Are there other fatal errors? 1182 */ 1183#define nfsds_failerr(e) ((e) == ENXIO || (e) == EIO) 1184 1185/* 1186 * Get a pointer to the MDS session, which is always the first element 1187 * in the list. 1188 * This macro can only be safely used when the NFSLOCKMNT() lock is held. 1189 * The inline function can be used when the lock isn't held. 1190 */ 1191#define NFSMNT_MDSSESSION(m) (&(TAILQ_FIRST(&((m)->nm_sess))->nfsclds_sess)) 1192 1193static __inline struct nfsclsession * 1194nfsmnt_mdssession(struct nfsmount *nmp) 1195{ 1196 struct nfsclsession *tsep; 1197 1198 tsep = NULL; 1199 mtx_lock(&nmp->nm_mtx); 1200 if (TAILQ_FIRST(&nmp->nm_sess) != NULL) 1201 tsep = NFSMNT_MDSSESSION(nmp); 1202 mtx_unlock(&nmp->nm_mtx); 1203 return (tsep); 1204} 1205 1206#endif /* _KERNEL */ 1207 1208#endif /* _NFS_NFSPORT_H */ 1209