nfs_srvsubs.c revision 22975
1/* 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Rick Macklem at The University of Guelph. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)nfs_subs.c 8.3 (Berkeley) 1/4/94 37 * $Id$ 38 */ 39 40/* 41 * These functions support the macros and help fiddle mbuf chains for 42 * the nfs op functions. They do things like create the rpc header and 43 * copy data between mbuf chains and uio lists. 44 */ 45#include <sys/param.h> 46#include <sys/proc.h> 47#include <sys/systm.h> 48#include <sys/kernel.h> 49#include <sys/mount.h> 50#include <sys/vnode.h> 51#include <sys/namei.h> 52#include <sys/mbuf.h> 53#include <sys/socket.h> 54#include <sys/stat.h> 55#include <sys/malloc.h> 56#ifdef VFS_LKM 57#include <sys/sysent.h> 58#include <sys/syscall.h> 59#endif 60 61#include <vm/vm.h> 62#include <vm/vm_param.h> 63#include <vm/vm_object.h> 64#include <vm/vm_extern.h> 65#include <vm/vnode_pager.h> 66 67#include <nfs/rpcv2.h> 68#include <nfs/nfsproto.h> 69#include <nfs/nfsnode.h> 70#include <nfs/nfs.h> 71#include <nfs/xdr_subs.h> 72#include <nfs/nfsm_subs.h> 73#include <nfs/nfsmount.h> 74#include <nfs/nqnfs.h> 75#include <nfs/nfsrtt.h> 76 77#include <miscfs/specfs/specdev.h> 78 79#include <netinet/in.h> 80#ifdef ISO 81#include <netiso/iso.h> 82#endif 83 84/* 85 * Data items converted to xdr at startup, since they are constant 86 * This is kinda hokey, but may save a little time doing byte swaps 87 */ 88u_long nfs_xdrneg1; 89u_long rpc_call, rpc_vers, rpc_reply, rpc_msgdenied, rpc_autherr, 90 rpc_mismatch, rpc_auth_unix, rpc_msgaccepted, 91 rpc_auth_kerb; 92u_long nfs_prog, nqnfs_prog, nfs_true, nfs_false; 93 94/* And other global data */ 95static u_long nfs_xid = 0; 96static enum vtype nv2tov_type[8]= { 97 VNON, VREG, VDIR, VBLK, VCHR, VLNK, VNON, VNON 98}; 99enum vtype nv3tov_type[8]= { 100 VNON, VREG, VDIR, VBLK, VCHR, VLNK, VSOCK, VFIFO 101}; 102 103int nfs_mount_type; 104int nfs_ticks; 105 106struct nfs_reqq nfs_reqq; 107struct nfssvc_sockhead nfssvc_sockhead; 108int nfssvc_sockhead_flag; 109struct nfsd_head nfsd_head; 110int nfsd_head_flag; 111struct nfs_bufq nfs_bufq; 112struct nqtimerhead nqtimerhead; 113struct nqfhhashhead *nqfhhashtbl; 114u_long nqfhhash; 115 116#ifndef NFS_NOSERVER 117/* 118 * Mapping of old NFS Version 2 RPC numbers to generic numbers. 119 */ 120int nfsv3_procid[NFS_NPROCS] = { 121 NFSPROC_NULL, 122 NFSPROC_GETATTR, 123 NFSPROC_SETATTR, 124 NFSPROC_NOOP, 125 NFSPROC_LOOKUP, 126 NFSPROC_READLINK, 127 NFSPROC_READ, 128 NFSPROC_NOOP, 129 NFSPROC_WRITE, 130 NFSPROC_CREATE, 131 NFSPROC_REMOVE, 132 NFSPROC_RENAME, 133 NFSPROC_LINK, 134 NFSPROC_SYMLINK, 135 NFSPROC_MKDIR, 136 NFSPROC_RMDIR, 137 NFSPROC_READDIR, 138 NFSPROC_FSSTAT, 139 NFSPROC_NOOP, 140 NFSPROC_NOOP, 141 NFSPROC_NOOP, 142 NFSPROC_NOOP, 143 NFSPROC_NOOP, 144 NFSPROC_NOOP, 145 NFSPROC_NOOP, 146 NFSPROC_NOOP 147}; 148 149#endif /* NFS_NOSERVER */ 150/* 151 * and the reverse mapping from generic to Version 2 procedure numbers 152 */ 153int nfsv2_procid[NFS_NPROCS] = { 154 NFSV2PROC_NULL, 155 NFSV2PROC_GETATTR, 156 NFSV2PROC_SETATTR, 157 NFSV2PROC_LOOKUP, 158 NFSV2PROC_NOOP, 159 NFSV2PROC_READLINK, 160 NFSV2PROC_READ, 161 NFSV2PROC_WRITE, 162 NFSV2PROC_CREATE, 163 NFSV2PROC_MKDIR, 164 NFSV2PROC_SYMLINK, 165 NFSV2PROC_CREATE, 166 NFSV2PROC_REMOVE, 167 NFSV2PROC_RMDIR, 168 NFSV2PROC_RENAME, 169 NFSV2PROC_LINK, 170 NFSV2PROC_READDIR, 171 NFSV2PROC_NOOP, 172 NFSV2PROC_STATFS, 173 NFSV2PROC_NOOP, 174 NFSV2PROC_NOOP, 175 NFSV2PROC_NOOP, 176 NFSV2PROC_NOOP, 177 NFSV2PROC_NOOP, 178 NFSV2PROC_NOOP, 179 NFSV2PROC_NOOP, 180}; 181 182#ifndef NFS_NOSERVER 183/* 184 * Maps errno values to nfs error numbers. 185 * Use NFSERR_IO as the catch all for ones not specifically defined in 186 * RFC 1094. 187 */ 188static u_char nfsrv_v2errmap[ELAST] = { 189 NFSERR_PERM, NFSERR_NOENT, NFSERR_IO, NFSERR_IO, NFSERR_IO, 190 NFSERR_NXIO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 191 NFSERR_IO, NFSERR_IO, NFSERR_ACCES, NFSERR_IO, NFSERR_IO, 192 NFSERR_IO, NFSERR_EXIST, NFSERR_IO, NFSERR_NODEV, NFSERR_NOTDIR, 193 NFSERR_ISDIR, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 194 NFSERR_IO, NFSERR_FBIG, NFSERR_NOSPC, NFSERR_IO, NFSERR_ROFS, 195 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 196 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 197 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 198 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 199 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 200 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 201 NFSERR_IO, NFSERR_IO, NFSERR_NAMETOL, NFSERR_IO, NFSERR_IO, 202 NFSERR_NOTEMPTY, NFSERR_IO, NFSERR_IO, NFSERR_DQUOT, NFSERR_STALE, 203 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 204 NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 205 NFSERR_IO, 206}; 207 208/* 209 * Maps errno values to nfs error numbers. 210 * Although it is not obvious whether or not NFS clients really care if 211 * a returned error value is in the specified list for the procedure, the 212 * safest thing to do is filter them appropriately. For Version 2, the 213 * X/Open XNFS document is the only specification that defines error values 214 * for each RPC (The RFC simply lists all possible error values for all RPCs), 215 * so I have decided to not do this for Version 2. 216 * The first entry is the default error return and the rest are the valid 217 * errors for that RPC in increasing numeric order. 218 */ 219static short nfsv3err_null[] = { 220 0, 221 0, 222}; 223 224static short nfsv3err_getattr[] = { 225 NFSERR_IO, 226 NFSERR_IO, 227 NFSERR_STALE, 228 NFSERR_BADHANDLE, 229 NFSERR_SERVERFAULT, 230 0, 231}; 232 233static short nfsv3err_setattr[] = { 234 NFSERR_IO, 235 NFSERR_PERM, 236 NFSERR_IO, 237 NFSERR_ACCES, 238 NFSERR_INVAL, 239 NFSERR_NOSPC, 240 NFSERR_ROFS, 241 NFSERR_DQUOT, 242 NFSERR_STALE, 243 NFSERR_BADHANDLE, 244 NFSERR_NOT_SYNC, 245 NFSERR_SERVERFAULT, 246 0, 247}; 248 249static short nfsv3err_lookup[] = { 250 NFSERR_IO, 251 NFSERR_NOENT, 252 NFSERR_IO, 253 NFSERR_ACCES, 254 NFSERR_NOTDIR, 255 NFSERR_NAMETOL, 256 NFSERR_STALE, 257 NFSERR_BADHANDLE, 258 NFSERR_SERVERFAULT, 259 0, 260}; 261 262static short nfsv3err_access[] = { 263 NFSERR_IO, 264 NFSERR_IO, 265 NFSERR_STALE, 266 NFSERR_BADHANDLE, 267 NFSERR_SERVERFAULT, 268 0, 269}; 270 271static short nfsv3err_readlink[] = { 272 NFSERR_IO, 273 NFSERR_IO, 274 NFSERR_ACCES, 275 NFSERR_INVAL, 276 NFSERR_STALE, 277 NFSERR_BADHANDLE, 278 NFSERR_NOTSUPP, 279 NFSERR_SERVERFAULT, 280 0, 281}; 282 283static short nfsv3err_read[] = { 284 NFSERR_IO, 285 NFSERR_IO, 286 NFSERR_NXIO, 287 NFSERR_ACCES, 288 NFSERR_INVAL, 289 NFSERR_STALE, 290 NFSERR_BADHANDLE, 291 NFSERR_SERVERFAULT, 292 0, 293}; 294 295static short nfsv3err_write[] = { 296 NFSERR_IO, 297 NFSERR_IO, 298 NFSERR_ACCES, 299 NFSERR_INVAL, 300 NFSERR_FBIG, 301 NFSERR_NOSPC, 302 NFSERR_ROFS, 303 NFSERR_DQUOT, 304 NFSERR_STALE, 305 NFSERR_BADHANDLE, 306 NFSERR_SERVERFAULT, 307 0, 308}; 309 310static short nfsv3err_create[] = { 311 NFSERR_IO, 312 NFSERR_IO, 313 NFSERR_ACCES, 314 NFSERR_EXIST, 315 NFSERR_NOTDIR, 316 NFSERR_NOSPC, 317 NFSERR_ROFS, 318 NFSERR_NAMETOL, 319 NFSERR_DQUOT, 320 NFSERR_STALE, 321 NFSERR_BADHANDLE, 322 NFSERR_NOTSUPP, 323 NFSERR_SERVERFAULT, 324 0, 325}; 326 327static short nfsv3err_mkdir[] = { 328 NFSERR_IO, 329 NFSERR_IO, 330 NFSERR_ACCES, 331 NFSERR_EXIST, 332 NFSERR_NOTDIR, 333 NFSERR_NOSPC, 334 NFSERR_ROFS, 335 NFSERR_NAMETOL, 336 NFSERR_DQUOT, 337 NFSERR_STALE, 338 NFSERR_BADHANDLE, 339 NFSERR_NOTSUPP, 340 NFSERR_SERVERFAULT, 341 0, 342}; 343 344static short nfsv3err_symlink[] = { 345 NFSERR_IO, 346 NFSERR_IO, 347 NFSERR_ACCES, 348 NFSERR_EXIST, 349 NFSERR_NOTDIR, 350 NFSERR_NOSPC, 351 NFSERR_ROFS, 352 NFSERR_NAMETOL, 353 NFSERR_DQUOT, 354 NFSERR_STALE, 355 NFSERR_BADHANDLE, 356 NFSERR_NOTSUPP, 357 NFSERR_SERVERFAULT, 358 0, 359}; 360 361static short nfsv3err_mknod[] = { 362 NFSERR_IO, 363 NFSERR_IO, 364 NFSERR_ACCES, 365 NFSERR_EXIST, 366 NFSERR_NOTDIR, 367 NFSERR_NOSPC, 368 NFSERR_ROFS, 369 NFSERR_NAMETOL, 370 NFSERR_DQUOT, 371 NFSERR_STALE, 372 NFSERR_BADHANDLE, 373 NFSERR_NOTSUPP, 374 NFSERR_SERVERFAULT, 375 NFSERR_BADTYPE, 376 0, 377}; 378 379static short nfsv3err_remove[] = { 380 NFSERR_IO, 381 NFSERR_NOENT, 382 NFSERR_IO, 383 NFSERR_ACCES, 384 NFSERR_NOTDIR, 385 NFSERR_ROFS, 386 NFSERR_NAMETOL, 387 NFSERR_STALE, 388 NFSERR_BADHANDLE, 389 NFSERR_SERVERFAULT, 390 0, 391}; 392 393static short nfsv3err_rmdir[] = { 394 NFSERR_IO, 395 NFSERR_NOENT, 396 NFSERR_IO, 397 NFSERR_ACCES, 398 NFSERR_EXIST, 399 NFSERR_NOTDIR, 400 NFSERR_INVAL, 401 NFSERR_ROFS, 402 NFSERR_NAMETOL, 403 NFSERR_NOTEMPTY, 404 NFSERR_STALE, 405 NFSERR_BADHANDLE, 406 NFSERR_NOTSUPP, 407 NFSERR_SERVERFAULT, 408 0, 409}; 410 411static short nfsv3err_rename[] = { 412 NFSERR_IO, 413 NFSERR_NOENT, 414 NFSERR_IO, 415 NFSERR_ACCES, 416 NFSERR_EXIST, 417 NFSERR_XDEV, 418 NFSERR_NOTDIR, 419 NFSERR_ISDIR, 420 NFSERR_INVAL, 421 NFSERR_NOSPC, 422 NFSERR_ROFS, 423 NFSERR_MLINK, 424 NFSERR_NAMETOL, 425 NFSERR_NOTEMPTY, 426 NFSERR_DQUOT, 427 NFSERR_STALE, 428 NFSERR_BADHANDLE, 429 NFSERR_NOTSUPP, 430 NFSERR_SERVERFAULT, 431 0, 432}; 433 434static short nfsv3err_link[] = { 435 NFSERR_IO, 436 NFSERR_IO, 437 NFSERR_ACCES, 438 NFSERR_EXIST, 439 NFSERR_XDEV, 440 NFSERR_NOTDIR, 441 NFSERR_INVAL, 442 NFSERR_NOSPC, 443 NFSERR_ROFS, 444 NFSERR_MLINK, 445 NFSERR_NAMETOL, 446 NFSERR_DQUOT, 447 NFSERR_STALE, 448 NFSERR_BADHANDLE, 449 NFSERR_NOTSUPP, 450 NFSERR_SERVERFAULT, 451 0, 452}; 453 454static short nfsv3err_readdir[] = { 455 NFSERR_IO, 456 NFSERR_IO, 457 NFSERR_ACCES, 458 NFSERR_NOTDIR, 459 NFSERR_STALE, 460 NFSERR_BADHANDLE, 461 NFSERR_BAD_COOKIE, 462 NFSERR_TOOSMALL, 463 NFSERR_SERVERFAULT, 464 0, 465}; 466 467static short nfsv3err_readdirplus[] = { 468 NFSERR_IO, 469 NFSERR_IO, 470 NFSERR_ACCES, 471 NFSERR_NOTDIR, 472 NFSERR_STALE, 473 NFSERR_BADHANDLE, 474 NFSERR_BAD_COOKIE, 475 NFSERR_NOTSUPP, 476 NFSERR_TOOSMALL, 477 NFSERR_SERVERFAULT, 478 0, 479}; 480 481static short nfsv3err_fsstat[] = { 482 NFSERR_IO, 483 NFSERR_IO, 484 NFSERR_STALE, 485 NFSERR_BADHANDLE, 486 NFSERR_SERVERFAULT, 487 0, 488}; 489 490static short nfsv3err_fsinfo[] = { 491 NFSERR_STALE, 492 NFSERR_STALE, 493 NFSERR_BADHANDLE, 494 NFSERR_SERVERFAULT, 495 0, 496}; 497 498static short nfsv3err_pathconf[] = { 499 NFSERR_STALE, 500 NFSERR_STALE, 501 NFSERR_BADHANDLE, 502 NFSERR_SERVERFAULT, 503 0, 504}; 505 506static short nfsv3err_commit[] = { 507 NFSERR_IO, 508 NFSERR_IO, 509 NFSERR_STALE, 510 NFSERR_BADHANDLE, 511 NFSERR_SERVERFAULT, 512 0, 513}; 514 515static short *nfsrv_v3errmap[] = { 516 nfsv3err_null, 517 nfsv3err_getattr, 518 nfsv3err_setattr, 519 nfsv3err_lookup, 520 nfsv3err_access, 521 nfsv3err_readlink, 522 nfsv3err_read, 523 nfsv3err_write, 524 nfsv3err_create, 525 nfsv3err_mkdir, 526 nfsv3err_symlink, 527 nfsv3err_mknod, 528 nfsv3err_remove, 529 nfsv3err_rmdir, 530 nfsv3err_rename, 531 nfsv3err_link, 532 nfsv3err_readdir, 533 nfsv3err_readdirplus, 534 nfsv3err_fsstat, 535 nfsv3err_fsinfo, 536 nfsv3err_pathconf, 537 nfsv3err_commit, 538}; 539 540#endif /* NFS_NOSERVER */ 541 542extern struct nfsrtt nfsrtt; 543extern time_t nqnfsstarttime; 544extern int nqsrv_clockskew; 545extern int nqsrv_writeslack; 546extern int nqsrv_maxlease; 547extern struct nfsstats nfsstats; 548extern int nqnfs_piggy[NFS_NPROCS]; 549extern nfstype nfsv2_type[9]; 550extern nfstype nfsv3_type[9]; 551extern struct nfsnodehashhead *nfsnodehashtbl; 552extern u_long nfsnodehash; 553 554#ifdef VFS_LKM 555struct getfh_args; 556extern int getfh(struct proc *, struct getfh_args *, int *); 557struct nfssvc_args; 558extern int nfssvc(struct proc *, struct nfssvc_args *, int *); 559#endif 560 561LIST_HEAD(nfsnodehashhead, nfsnode); 562 563/* 564 * Create the header for an rpc request packet 565 * The hsiz is the size of the rest of the nfs request header. 566 * (just used to decide if a cluster is a good idea) 567 */ 568struct mbuf * 569nfsm_reqh(vp, procid, hsiz, bposp) 570 struct vnode *vp; 571 u_long procid; 572 int hsiz; 573 caddr_t *bposp; 574{ 575 register struct mbuf *mb; 576 register u_long *tl; 577 register caddr_t bpos; 578 struct mbuf *mb2; 579 struct nfsmount *nmp; 580 int nqflag; 581 582 MGET(mb, M_WAIT, MT_DATA); 583 if (hsiz >= MINCLSIZE) 584 MCLGET(mb, M_WAIT); 585 mb->m_len = 0; 586 bpos = mtod(mb, caddr_t); 587 588 /* 589 * For NQNFS, add lease request. 590 */ 591 if (vp) { 592 nmp = VFSTONFS(vp->v_mount); 593 if (nmp->nm_flag & NFSMNT_NQNFS) { 594 nqflag = NQNFS_NEEDLEASE(vp, procid); 595 if (nqflag) { 596 nfsm_build(tl, u_long *, 2*NFSX_UNSIGNED); 597 *tl++ = txdr_unsigned(nqflag); 598 *tl = txdr_unsigned(nmp->nm_leaseterm); 599 } else { 600 nfsm_build(tl, u_long *, NFSX_UNSIGNED); 601 *tl = 0; 602 } 603 } 604 } 605 /* Finally, return values */ 606 *bposp = bpos; 607 return (mb); 608} 609 610/* 611 * Build the RPC header and fill in the authorization info. 612 * The authorization string argument is only used when the credentials 613 * come from outside of the kernel. 614 * Returns the head of the mbuf list. 615 */ 616struct mbuf * 617nfsm_rpchead(cr, nmflag, procid, auth_type, auth_len, auth_str, verf_len, 618 verf_str, mrest, mrest_len, mbp, xidp) 619 register struct ucred *cr; 620 int nmflag; 621 int procid; 622 int auth_type; 623 int auth_len; 624 char *auth_str; 625 int verf_len; 626 char *verf_str; 627 struct mbuf *mrest; 628 int mrest_len; 629 struct mbuf **mbp; 630 u_long *xidp; 631{ 632 register struct mbuf *mb; 633 register u_long *tl; 634 register caddr_t bpos; 635 register int i; 636 struct mbuf *mreq, *mb2; 637 int siz, grpsiz, authsiz; 638 struct timeval tv; 639 static u_long base; 640 641 authsiz = nfsm_rndup(auth_len); 642 MGETHDR(mb, M_WAIT, MT_DATA); 643 if ((authsiz + 10 * NFSX_UNSIGNED) >= MINCLSIZE) { 644 MCLGET(mb, M_WAIT); 645 } else if ((authsiz + 10 * NFSX_UNSIGNED) < MHLEN) { 646 MH_ALIGN(mb, authsiz + 10 * NFSX_UNSIGNED); 647 } else { 648 MH_ALIGN(mb, 8 * NFSX_UNSIGNED); 649 } 650 mb->m_len = 0; 651 mreq = mb; 652 bpos = mtod(mb, caddr_t); 653 654 /* 655 * First the RPC header. 656 */ 657 nfsm_build(tl, u_long *, 8 * NFSX_UNSIGNED); 658 659 /* 660 * derive initial xid from system time 661 * XXX time is invalid if root not yet mounted 662 */ 663 if (!base && (rootvp)) { 664 microtime(&tv); 665 base = tv.tv_sec << 12; 666 nfs_xid = base; 667 } 668 /* 669 * Skip zero xid if it should ever happen. 670 */ 671 if (++nfs_xid == 0) 672 nfs_xid++; 673 674 *tl++ = *xidp = txdr_unsigned(nfs_xid); 675 *tl++ = rpc_call; 676 *tl++ = rpc_vers; 677 if (nmflag & NFSMNT_NQNFS) { 678 *tl++ = txdr_unsigned(NQNFS_PROG); 679 *tl++ = txdr_unsigned(NQNFS_VER3); 680 } else { 681 *tl++ = txdr_unsigned(NFS_PROG); 682 if (nmflag & NFSMNT_NFSV3) 683 *tl++ = txdr_unsigned(NFS_VER3); 684 else 685 *tl++ = txdr_unsigned(NFS_VER2); 686 } 687 if (nmflag & NFSMNT_NFSV3) 688 *tl++ = txdr_unsigned(procid); 689 else 690 *tl++ = txdr_unsigned(nfsv2_procid[procid]); 691 692 /* 693 * And then the authorization cred. 694 */ 695 *tl++ = txdr_unsigned(auth_type); 696 *tl = txdr_unsigned(authsiz); 697 switch (auth_type) { 698 case RPCAUTH_UNIX: 699 nfsm_build(tl, u_long *, auth_len); 700 *tl++ = 0; /* stamp ?? */ 701 *tl++ = 0; /* NULL hostname */ 702 *tl++ = txdr_unsigned(cr->cr_uid); 703 *tl++ = txdr_unsigned(cr->cr_groups[0]); 704 grpsiz = (auth_len >> 2) - 5; 705 *tl++ = txdr_unsigned(grpsiz); 706 for (i = 1; i <= grpsiz; i++) 707 *tl++ = txdr_unsigned(cr->cr_groups[i]); 708 break; 709 case RPCAUTH_KERB4: 710 siz = auth_len; 711 while (siz > 0) { 712 if (M_TRAILINGSPACE(mb) == 0) { 713 MGET(mb2, M_WAIT, MT_DATA); 714 if (siz >= MINCLSIZE) 715 MCLGET(mb2, M_WAIT); 716 mb->m_next = mb2; 717 mb = mb2; 718 mb->m_len = 0; 719 bpos = mtod(mb, caddr_t); 720 } 721 i = min(siz, M_TRAILINGSPACE(mb)); 722 bcopy(auth_str, bpos, i); 723 mb->m_len += i; 724 auth_str += i; 725 bpos += i; 726 siz -= i; 727 } 728 if ((siz = (nfsm_rndup(auth_len) - auth_len)) > 0) { 729 for (i = 0; i < siz; i++) 730 *bpos++ = '\0'; 731 mb->m_len += siz; 732 } 733 break; 734 }; 735 736 /* 737 * And the verifier... 738 */ 739 nfsm_build(tl, u_long *, 2 * NFSX_UNSIGNED); 740 if (verf_str) { 741 *tl++ = txdr_unsigned(RPCAUTH_KERB4); 742 *tl = txdr_unsigned(verf_len); 743 siz = verf_len; 744 while (siz > 0) { 745 if (M_TRAILINGSPACE(mb) == 0) { 746 MGET(mb2, M_WAIT, MT_DATA); 747 if (siz >= MINCLSIZE) 748 MCLGET(mb2, M_WAIT); 749 mb->m_next = mb2; 750 mb = mb2; 751 mb->m_len = 0; 752 bpos = mtod(mb, caddr_t); 753 } 754 i = min(siz, M_TRAILINGSPACE(mb)); 755 bcopy(verf_str, bpos, i); 756 mb->m_len += i; 757 verf_str += i; 758 bpos += i; 759 siz -= i; 760 } 761 if ((siz = (nfsm_rndup(verf_len) - verf_len)) > 0) { 762 for (i = 0; i < siz; i++) 763 *bpos++ = '\0'; 764 mb->m_len += siz; 765 } 766 } else { 767 *tl++ = txdr_unsigned(RPCAUTH_NULL); 768 *tl = 0; 769 } 770 mb->m_next = mrest; 771 mreq->m_pkthdr.len = authsiz + 10 * NFSX_UNSIGNED + mrest_len; 772 mreq->m_pkthdr.rcvif = (struct ifnet *)0; 773 *mbp = mb; 774 return (mreq); 775} 776 777/* 778 * copies mbuf chain to the uio scatter/gather list 779 */ 780int 781nfsm_mbuftouio(mrep, uiop, siz, dpos) 782 struct mbuf **mrep; 783 register struct uio *uiop; 784 int siz; 785 caddr_t *dpos; 786{ 787 register char *mbufcp, *uiocp; 788 register int xfer, left, len; 789 register struct mbuf *mp; 790 long uiosiz, rem; 791 int error = 0; 792 793 mp = *mrep; 794 mbufcp = *dpos; 795 len = mtod(mp, caddr_t)+mp->m_len-mbufcp; 796 rem = nfsm_rndup(siz)-siz; 797 while (siz > 0) { 798 if (uiop->uio_iovcnt <= 0 || uiop->uio_iov == NULL) 799 return (EFBIG); 800 left = uiop->uio_iov->iov_len; 801 uiocp = uiop->uio_iov->iov_base; 802 if (left > siz) 803 left = siz; 804 uiosiz = left; 805 while (left > 0) { 806 while (len == 0) { 807 mp = mp->m_next; 808 if (mp == NULL) 809 return (EBADRPC); 810 mbufcp = mtod(mp, caddr_t); 811 len = mp->m_len; 812 } 813 xfer = (left > len) ? len : left; 814#ifdef notdef 815 /* Not Yet.. */ 816 if (uiop->uio_iov->iov_op != NULL) 817 (*(uiop->uio_iov->iov_op)) 818 (mbufcp, uiocp, xfer); 819 else 820#endif 821 if (uiop->uio_segflg == UIO_SYSSPACE) 822 bcopy(mbufcp, uiocp, xfer); 823 else 824 copyout(mbufcp, uiocp, xfer); 825 left -= xfer; 826 len -= xfer; 827 mbufcp += xfer; 828 uiocp += xfer; 829 uiop->uio_offset += xfer; 830 uiop->uio_resid -= xfer; 831 } 832 if (uiop->uio_iov->iov_len <= siz) { 833 uiop->uio_iovcnt--; 834 uiop->uio_iov++; 835 } else { 836 uiop->uio_iov->iov_base += uiosiz; 837 uiop->uio_iov->iov_len -= uiosiz; 838 } 839 siz -= uiosiz; 840 } 841 *dpos = mbufcp; 842 *mrep = mp; 843 if (rem > 0) { 844 if (len < rem) 845 error = nfs_adv(mrep, dpos, rem, len); 846 else 847 *dpos += rem; 848 } 849 return (error); 850} 851 852/* 853 * copies a uio scatter/gather list to an mbuf chain. 854 * NOTE: can ony handle iovcnt == 1 855 */ 856int 857nfsm_uiotombuf(uiop, mq, siz, bpos) 858 register struct uio *uiop; 859 struct mbuf **mq; 860 int siz; 861 caddr_t *bpos; 862{ 863 register char *uiocp; 864 register struct mbuf *mp, *mp2; 865 register int xfer, left, mlen; 866 int uiosiz, clflg, rem; 867 char *cp; 868 869 if (uiop->uio_iovcnt != 1) 870 panic("nfsm_uiotombuf: iovcnt != 1"); 871 872 if (siz > MLEN) /* or should it >= MCLBYTES ?? */ 873 clflg = 1; 874 else 875 clflg = 0; 876 rem = nfsm_rndup(siz)-siz; 877 mp = mp2 = *mq; 878 while (siz > 0) { 879 left = uiop->uio_iov->iov_len; 880 uiocp = uiop->uio_iov->iov_base; 881 if (left > siz) 882 left = siz; 883 uiosiz = left; 884 while (left > 0) { 885 mlen = M_TRAILINGSPACE(mp); 886 if (mlen == 0) { 887 MGET(mp, M_WAIT, MT_DATA); 888 if (clflg) 889 MCLGET(mp, M_WAIT); 890 mp->m_len = 0; 891 mp2->m_next = mp; 892 mp2 = mp; 893 mlen = M_TRAILINGSPACE(mp); 894 } 895 xfer = (left > mlen) ? mlen : left; 896#ifdef notdef 897 /* Not Yet.. */ 898 if (uiop->uio_iov->iov_op != NULL) 899 (*(uiop->uio_iov->iov_op)) 900 (uiocp, mtod(mp, caddr_t)+mp->m_len, xfer); 901 else 902#endif 903 if (uiop->uio_segflg == UIO_SYSSPACE) 904 bcopy(uiocp, mtod(mp, caddr_t)+mp->m_len, xfer); 905 else 906 copyin(uiocp, mtod(mp, caddr_t)+mp->m_len, xfer); 907 mp->m_len += xfer; 908 left -= xfer; 909 uiocp += xfer; 910 uiop->uio_offset += xfer; 911 uiop->uio_resid -= xfer; 912 } 913 uiop->uio_iov->iov_base += uiosiz; 914 uiop->uio_iov->iov_len -= uiosiz; 915 siz -= uiosiz; 916 } 917 if (rem > 0) { 918 if (rem > M_TRAILINGSPACE(mp)) { 919 MGET(mp, M_WAIT, MT_DATA); 920 mp->m_len = 0; 921 mp2->m_next = mp; 922 } 923 cp = mtod(mp, caddr_t)+mp->m_len; 924 for (left = 0; left < rem; left++) 925 *cp++ = '\0'; 926 mp->m_len += rem; 927 *bpos = cp; 928 } else 929 *bpos = mtod(mp, caddr_t)+mp->m_len; 930 *mq = mp; 931 return (0); 932} 933 934/* 935 * Help break down an mbuf chain by setting the first siz bytes contiguous 936 * pointed to by returned val. 937 * This is used by the macros nfsm_dissect and nfsm_dissecton for tough 938 * cases. (The macros use the vars. dpos and dpos2) 939 */ 940int 941nfsm_disct(mdp, dposp, siz, left, cp2) 942 struct mbuf **mdp; 943 caddr_t *dposp; 944 int siz; 945 int left; 946 caddr_t *cp2; 947{ 948 register struct mbuf *mp, *mp2; 949 register int siz2, xfer; 950 register caddr_t p; 951 952 mp = *mdp; 953 while (left == 0) { 954 *mdp = mp = mp->m_next; 955 if (mp == NULL) 956 return (EBADRPC); 957 left = mp->m_len; 958 *dposp = mtod(mp, caddr_t); 959 } 960 if (left >= siz) { 961 *cp2 = *dposp; 962 *dposp += siz; 963 } else if (mp->m_next == NULL) { 964 return (EBADRPC); 965 } else if (siz > MHLEN) { 966 panic("nfs S too big"); 967 } else { 968 MGET(mp2, M_WAIT, MT_DATA); 969 mp2->m_next = mp->m_next; 970 mp->m_next = mp2; 971 mp->m_len -= left; 972 mp = mp2; 973 *cp2 = p = mtod(mp, caddr_t); 974 bcopy(*dposp, p, left); /* Copy what was left */ 975 siz2 = siz-left; 976 p += left; 977 mp2 = mp->m_next; 978 /* Loop around copying up the siz2 bytes */ 979 while (siz2 > 0) { 980 if (mp2 == NULL) 981 return (EBADRPC); 982 xfer = (siz2 > mp2->m_len) ? mp2->m_len : siz2; 983 if (xfer > 0) { 984 bcopy(mtod(mp2, caddr_t), p, xfer); 985 NFSMADV(mp2, xfer); 986 mp2->m_len -= xfer; 987 p += xfer; 988 siz2 -= xfer; 989 } 990 if (siz2 > 0) 991 mp2 = mp2->m_next; 992 } 993 mp->m_len = siz; 994 *mdp = mp2; 995 *dposp = mtod(mp2, caddr_t); 996 } 997 return (0); 998} 999 1000/* 1001 * Advance the position in the mbuf chain. 1002 */ 1003int 1004nfs_adv(mdp, dposp, offs, left) 1005 struct mbuf **mdp; 1006 caddr_t *dposp; 1007 int offs; 1008 int left; 1009{ 1010 register struct mbuf *m; 1011 register int s; 1012 1013 m = *mdp; 1014 s = left; 1015 while (s < offs) { 1016 offs -= s; 1017 m = m->m_next; 1018 if (m == NULL) 1019 return (EBADRPC); 1020 s = m->m_len; 1021 } 1022 *mdp = m; 1023 *dposp = mtod(m, caddr_t)+offs; 1024 return (0); 1025} 1026 1027/* 1028 * Copy a string into mbufs for the hard cases... 1029 */ 1030int 1031nfsm_strtmbuf(mb, bpos, cp, siz) 1032 struct mbuf **mb; 1033 char **bpos; 1034 char *cp; 1035 long siz; 1036{ 1037 register struct mbuf *m1 = 0, *m2; 1038 long left, xfer, len, tlen; 1039 u_long *tl; 1040 int putsize; 1041 1042 putsize = 1; 1043 m2 = *mb; 1044 left = M_TRAILINGSPACE(m2); 1045 if (left > 0) { 1046 tl = ((u_long *)(*bpos)); 1047 *tl++ = txdr_unsigned(siz); 1048 putsize = 0; 1049 left -= NFSX_UNSIGNED; 1050 m2->m_len += NFSX_UNSIGNED; 1051 if (left > 0) { 1052 bcopy(cp, (caddr_t) tl, left); 1053 siz -= left; 1054 cp += left; 1055 m2->m_len += left; 1056 left = 0; 1057 } 1058 } 1059 /* Loop around adding mbufs */ 1060 while (siz > 0) { 1061 MGET(m1, M_WAIT, MT_DATA); 1062 if (siz > MLEN) 1063 MCLGET(m1, M_WAIT); 1064 m1->m_len = NFSMSIZ(m1); 1065 m2->m_next = m1; 1066 m2 = m1; 1067 tl = mtod(m1, u_long *); 1068 tlen = 0; 1069 if (putsize) { 1070 *tl++ = txdr_unsigned(siz); 1071 m1->m_len -= NFSX_UNSIGNED; 1072 tlen = NFSX_UNSIGNED; 1073 putsize = 0; 1074 } 1075 if (siz < m1->m_len) { 1076 len = nfsm_rndup(siz); 1077 xfer = siz; 1078 if (xfer < len) 1079 *(tl+(xfer>>2)) = 0; 1080 } else { 1081 xfer = len = m1->m_len; 1082 } 1083 bcopy(cp, (caddr_t) tl, xfer); 1084 m1->m_len = len+tlen; 1085 siz -= xfer; 1086 cp += xfer; 1087 } 1088 *mb = m1; 1089 *bpos = mtod(m1, caddr_t)+m1->m_len; 1090 return (0); 1091} 1092 1093/* 1094 * Called once to initialize data structures... 1095 */ 1096int 1097nfs_init(vfsp) 1098 struct vfsconf *vfsp; 1099{ 1100 register int i; 1101 1102 /* 1103 * Check to see if major data structures haven't bloated. 1104 */ 1105 if (sizeof (struct nfsnode) > NFS_NODEALLOC) { 1106 printf("struct nfsnode bloated (> %dbytes)\n", NFS_NODEALLOC); 1107 printf("Try reducing NFS_SMALLFH\n"); 1108 } 1109 if (sizeof (struct nfsmount) > NFS_MNTALLOC) { 1110 printf("struct nfsmount bloated (> %dbytes)\n", NFS_MNTALLOC); 1111 printf("Try reducing NFS_MUIDHASHSIZ\n"); 1112 } 1113 if (sizeof (struct nfssvc_sock) > NFS_SVCALLOC) { 1114 printf("struct nfssvc_sock bloated (> %dbytes)\n",NFS_SVCALLOC); 1115 printf("Try reducing NFS_UIDHASHSIZ\n"); 1116 } 1117 if (sizeof (struct nfsuid) > NFS_UIDALLOC) { 1118 printf("struct nfsuid bloated (> %dbytes)\n",NFS_UIDALLOC); 1119 printf("Try unionizing the nu_nickname and nu_flag fields\n"); 1120 } 1121 nfs_mount_type = vfsp->vfc_typenum; 1122 nfsrtt.pos = 0; 1123 rpc_vers = txdr_unsigned(RPC_VER2); 1124 rpc_call = txdr_unsigned(RPC_CALL); 1125 rpc_reply = txdr_unsigned(RPC_REPLY); 1126 rpc_msgdenied = txdr_unsigned(RPC_MSGDENIED); 1127 rpc_msgaccepted = txdr_unsigned(RPC_MSGACCEPTED); 1128 rpc_mismatch = txdr_unsigned(RPC_MISMATCH); 1129 rpc_autherr = txdr_unsigned(RPC_AUTHERR); 1130 rpc_auth_unix = txdr_unsigned(RPCAUTH_UNIX); 1131 rpc_auth_kerb = txdr_unsigned(RPCAUTH_KERB4); 1132 nfs_prog = txdr_unsigned(NFS_PROG); 1133 nqnfs_prog = txdr_unsigned(NQNFS_PROG); 1134 nfs_true = txdr_unsigned(TRUE); 1135 nfs_false = txdr_unsigned(FALSE); 1136 nfs_xdrneg1 = txdr_unsigned(-1); 1137 nfs_ticks = (hz * NFS_TICKINTVL + 500) / 1000; 1138 if (nfs_ticks < 1) 1139 nfs_ticks = 1; 1140 /* Ensure async daemons disabled */ 1141 for (i = 0; i < NFS_MAXASYNCDAEMON; i++) { 1142 nfs_iodwant[i] = (struct proc *)0; 1143 nfs_iodmount[i] = (struct nfsmount *)0; 1144 } 1145 nfs_nhinit(); /* Init the nfsnode table */ 1146#ifndef NFS_NOSERVER 1147 nfsrv_init(0); /* Init server data structures */ 1148 nfsrv_initcache(); /* Init the server request cache */ 1149#endif 1150 1151 /* 1152 * Initialize the nqnfs server stuff. 1153 */ 1154 if (nqnfsstarttime == 0) { 1155 nqnfsstarttime = boottime.tv_sec + nqsrv_maxlease 1156 + nqsrv_clockskew + nqsrv_writeslack; 1157 NQLOADNOVRAM(nqnfsstarttime); 1158 CIRCLEQ_INIT(&nqtimerhead); 1159 nqfhhashtbl = hashinit(NQLCHSZ, M_NQLEASE, &nqfhhash); 1160 } 1161 1162 /* 1163 * Initialize reply list and start timer 1164 */ 1165 TAILQ_INIT(&nfs_reqq); 1166 1167 nfs_timer(0); 1168 1169 1170#ifdef __FreeBSD__ 1171 /* 1172 * Set up lease_check and lease_updatetime so that other parts 1173 * of the system can call us, if we are loadable. 1174 */ 1175#ifndef NFS_NOSERVER 1176 lease_check_hook = nqnfs_vop_lease_check; 1177#endif 1178 lease_updatetime = nfs_lease_updatetime; 1179 vfsp->vfc_refcount++; /* make us non-unloadable */ 1180#ifdef VFS_LKM 1181 sysent[SYS_nfssvc].sy_narg = 2; 1182 sysent[SYS_nfssvc].sy_call = nfssvc; 1183#ifndef NFS_NOSERVER 1184 sysent[SYS_getfh].sy_narg = 2; 1185 sysent[SYS_getfh].sy_call = getfh; 1186#endif 1187#endif 1188#endif 1189 1190 return (0); 1191} 1192 1193/* 1194 * Attribute cache routines. 1195 * nfs_loadattrcache() - loads or updates the cache contents from attributes 1196 * that are on the mbuf list 1197 * nfs_getattrcache() - returns valid attributes if found in cache, returns 1198 * error otherwise 1199 */ 1200 1201/* 1202 * Load the attribute cache (that lives in the nfsnode entry) with 1203 * the values on the mbuf list and 1204 * Iff vap not NULL 1205 * copy the attributes to *vaper 1206 */ 1207int 1208nfs_loadattrcache(vpp, mdp, dposp, vaper) 1209 struct vnode **vpp; 1210 struct mbuf **mdp; 1211 caddr_t *dposp; 1212 struct vattr *vaper; 1213{ 1214 register struct vnode *vp = *vpp; 1215 register struct vattr *vap; 1216 register struct nfs_fattr *fp; 1217 register struct nfsnode *np; 1218 register long t1; 1219 caddr_t cp2; 1220 int error = 0, rdev; 1221 struct mbuf *md; 1222 enum vtype vtyp; 1223 u_short vmode; 1224 struct timespec mtime; 1225 struct vnode *nvp; 1226 int v3 = NFS_ISV3(vp); 1227 struct proc *p = curproc; 1228 1229 md = *mdp; 1230 t1 = (mtod(md, caddr_t) + md->m_len) - *dposp; 1231 if (error = nfsm_disct(mdp, dposp, NFSX_FATTR(v3), t1, &cp2)) 1232 return (error); 1233 fp = (struct nfs_fattr *)cp2; 1234 if (v3) { 1235 vtyp = nfsv3tov_type(fp->fa_type); 1236 vmode = fxdr_unsigned(u_short, fp->fa_mode); 1237 rdev = makedev(fxdr_unsigned(int, fp->fa3_rdev.specdata1), 1238 fxdr_unsigned(int, fp->fa3_rdev.specdata2)); 1239 fxdr_nfsv3time(&fp->fa3_mtime, &mtime); 1240 } else { 1241 vtyp = nfsv2tov_type(fp->fa_type); 1242 vmode = fxdr_unsigned(u_short, fp->fa_mode); 1243 /* 1244 * XXX 1245 * 1246 * The duplicate information returned in fa_type and fa_mode 1247 * is an ambiguity in the NFS version 2 protocol. 1248 * 1249 * VREG should be taken literally as a regular file. If a 1250 * server intents to return some type information differently 1251 * in the upper bits of the mode field (e.g. for sockets, or 1252 * FIFOs), NFSv2 mandates fa_type to be VNON. Anyway, we 1253 * leave the examination of the mode bits even in the VREG 1254 * case to avoid breakage for bogus servers, but we make sure 1255 * that there are actually type bits set in the upper part of 1256 * fa_mode (and failing that, trust the va_type field). 1257 * 1258 * NFSv3 cleared the issue, and requires fa_mode to not 1259 * contain any type information (while also introduing sockets 1260 * and FIFOs for fa_type). 1261 */ 1262 if (vtyp == VNON || (vtyp == VREG && (vmode & S_IFMT) != 0)) 1263 vtyp = IFTOVT(vmode); 1264 rdev = fxdr_unsigned(long, fp->fa2_rdev); 1265 fxdr_nfsv2time(&fp->fa2_mtime, &mtime); 1266 1267 /* 1268 * Really ugly NFSv2 kludge. 1269 */ 1270 if (vtyp == VCHR && rdev == 0xffffffff) 1271 vtyp = VFIFO; 1272 } 1273 1274 /* 1275 * If v_type == VNON it is a new node, so fill in the v_type, 1276 * n_mtime fields. Check to see if it represents a special 1277 * device, and if so, check for a possible alias. Once the 1278 * correct vnode has been obtained, fill in the rest of the 1279 * information. 1280 */ 1281 np = VTONFS(vp); 1282 if (vp->v_type != vtyp) { 1283 /* 1284 * If we had a lock and it turns out that the vnode 1285 * is an object which we don't want to lock (e.g. VDIR) 1286 * to avoid nasty hanging problems on a server crash, 1287 * then release it here. 1288 */ 1289 if (vtyp != VREG && VOP_ISLOCKED(vp)) 1290 VOP_UNLOCK(vp, 0, p); 1291 vp->v_type = vtyp; 1292 if (vp->v_type == VFIFO) { 1293 vp->v_op = fifo_nfsv2nodeop_p; 1294 } 1295 if (vp->v_type == VCHR || vp->v_type == VBLK) { 1296 vp->v_op = spec_nfsv2nodeop_p; 1297 nvp = checkalias(vp, (dev_t)rdev, vp->v_mount); 1298 if (nvp) { 1299 /* 1300 * Discard unneeded vnode, but save its nfsnode. 1301 * Since the nfsnode does not have a lock, its 1302 * vnode lock has to be carried over. 1303 */ 1304 nvp->v_vnlock = vp->v_vnlock; 1305 vp->v_vnlock = NULL; 1306 nvp->v_data = vp->v_data; 1307 vp->v_data = NULL; 1308 vp->v_op = spec_vnodeop_p; 1309 vrele(vp); 1310 vgone(vp); 1311 /* 1312 * Reinitialize aliased node. 1313 */ 1314 np->n_vnode = nvp; 1315 *vpp = vp = nvp; 1316 } 1317 } 1318 np->n_mtime = mtime.tv_sec; 1319 } 1320 vap = &np->n_vattr; 1321 vap->va_type = vtyp; 1322 vap->va_mode = (vmode & 07777); 1323 vap->va_rdev = (dev_t)rdev; 1324 vap->va_mtime = mtime; 1325 vap->va_fsid = vp->v_mount->mnt_stat.f_fsid.val[0]; 1326 if (v3) { 1327 vap->va_nlink = fxdr_unsigned(u_short, fp->fa_nlink); 1328 vap->va_uid = fxdr_unsigned(uid_t, fp->fa_uid); 1329 vap->va_gid = fxdr_unsigned(gid_t, fp->fa_gid); 1330 fxdr_hyper(&fp->fa3_size, &vap->va_size); 1331 vap->va_blocksize = NFS_FABLKSIZE; 1332 fxdr_hyper(&fp->fa3_used, &vap->va_bytes); 1333 vap->va_fileid = fxdr_unsigned(int, fp->fa3_fileid.nfsuquad[1]); 1334 fxdr_nfsv3time(&fp->fa3_atime, &vap->va_atime); 1335 fxdr_nfsv3time(&fp->fa3_ctime, &vap->va_ctime); 1336 vap->va_flags = 0; 1337 vap->va_filerev = 0; 1338 } else { 1339 vap->va_nlink = fxdr_unsigned(u_short, fp->fa_nlink); 1340 vap->va_uid = fxdr_unsigned(uid_t, fp->fa_uid); 1341 vap->va_gid = fxdr_unsigned(gid_t, fp->fa_gid); 1342 vap->va_size = fxdr_unsigned(u_long, fp->fa2_size); 1343 vap->va_blocksize = fxdr_unsigned(long, fp->fa2_blocksize); 1344 vap->va_bytes = fxdr_unsigned(long, fp->fa2_blocks) * NFS_FABLKSIZE; 1345 vap->va_fileid = fxdr_unsigned(long, fp->fa2_fileid); 1346 fxdr_nfsv2time(&fp->fa2_atime, &vap->va_atime); 1347 vap->va_flags = 0; 1348 vap->va_ctime.tv_sec = fxdr_unsigned(long, fp->fa2_ctime.nfsv2_sec); 1349 vap->va_ctime.tv_nsec = 0; 1350 vap->va_gen = fxdr_unsigned(u_long, fp->fa2_ctime.nfsv2_usec); 1351 vap->va_filerev = 0; 1352 } 1353 if (vap->va_size != np->n_size) { 1354 if (vap->va_type == VREG) { 1355 if (np->n_flag & NMODIFIED) { 1356 if (vap->va_size < np->n_size) 1357 vap->va_size = np->n_size; 1358 else 1359 np->n_size = vap->va_size; 1360 } else 1361 np->n_size = vap->va_size; 1362 vnode_pager_setsize(vp, (u_long)np->n_size); 1363 } else 1364 np->n_size = vap->va_size; 1365 } 1366 np->n_attrstamp = time.tv_sec; 1367 if (vaper != NULL) { 1368 bcopy((caddr_t)vap, (caddr_t)vaper, sizeof(*vap)); 1369 if (np->n_flag & NCHG) { 1370 if (np->n_flag & NACC) 1371 vaper->va_atime = np->n_atim; 1372 if (np->n_flag & NUPD) 1373 vaper->va_mtime = np->n_mtim; 1374 } 1375 } 1376 return (0); 1377} 1378 1379/* 1380 * Check the time stamp 1381 * If the cache is valid, copy contents to *vap and return 0 1382 * otherwise return an error 1383 */ 1384int 1385nfs_getattrcache(vp, vaper) 1386 register struct vnode *vp; 1387 struct vattr *vaper; 1388{ 1389 register struct nfsnode *np = VTONFS(vp); 1390 register struct vattr *vap; 1391 1392 if ((time.tv_sec - np->n_attrstamp) >= NFS_ATTRTIMEO(np)) { 1393 nfsstats.attrcache_misses++; 1394 return (ENOENT); 1395 } 1396 nfsstats.attrcache_hits++; 1397 vap = &np->n_vattr; 1398 if (vap->va_size != np->n_size) { 1399 if (vap->va_type == VREG) { 1400 if (np->n_flag & NMODIFIED) { 1401 if (vap->va_size < np->n_size) 1402 vap->va_size = np->n_size; 1403 else 1404 np->n_size = vap->va_size; 1405 } else 1406 np->n_size = vap->va_size; 1407 vnode_pager_setsize(vp, (u_long)np->n_size); 1408 } else 1409 np->n_size = vap->va_size; 1410 } 1411 bcopy((caddr_t)vap, (caddr_t)vaper, sizeof(struct vattr)); 1412 if (np->n_flag & NCHG) { 1413 if (np->n_flag & NACC) 1414 vaper->va_atime = np->n_atim; 1415 if (np->n_flag & NUPD) 1416 vaper->va_mtime = np->n_mtim; 1417 } 1418 return (0); 1419} 1420 1421#ifndef NFS_NOSERVER 1422/* 1423 * Set up nameidata for a lookup() call and do it 1424 */ 1425int 1426nfs_namei(ndp, fhp, len, slp, nam, mdp, dposp, retdirp, p, kerbflag) 1427 register struct nameidata *ndp; 1428 fhandle_t *fhp; 1429 int len; 1430 struct nfssvc_sock *slp; 1431 struct mbuf *nam; 1432 struct mbuf **mdp; 1433 caddr_t *dposp; 1434 struct vnode **retdirp; 1435 struct proc *p; 1436 int kerbflag; 1437{ 1438 register int i, rem; 1439 register struct mbuf *md; 1440 register char *fromcp, *tocp; 1441 struct vnode *dp; 1442 int error, rdonly; 1443 struct componentname *cnp = &ndp->ni_cnd; 1444 1445 *retdirp = (struct vnode *)0; 1446 MALLOC(cnp->cn_pnbuf, char *, len + 1, M_NAMEI, M_WAITOK); 1447 /* 1448 * Copy the name from the mbuf list to ndp->ni_pnbuf 1449 * and set the various ndp fields appropriately. 1450 */ 1451 fromcp = *dposp; 1452 tocp = cnp->cn_pnbuf; 1453 md = *mdp; 1454 rem = mtod(md, caddr_t) + md->m_len - fromcp; 1455 cnp->cn_hash = 0; 1456 for (i = 0; i < len; i++) { 1457 while (rem == 0) { 1458 md = md->m_next; 1459 if (md == NULL) { 1460 error = EBADRPC; 1461 goto out; 1462 } 1463 fromcp = mtod(md, caddr_t); 1464 rem = md->m_len; 1465 } 1466 if (*fromcp == '\0' || *fromcp == '/') { 1467 error = EACCES; 1468 goto out; 1469 } 1470 cnp->cn_hash += (unsigned char)*fromcp; 1471 *tocp++ = *fromcp++; 1472 rem--; 1473 } 1474 *tocp = '\0'; 1475 *mdp = md; 1476 *dposp = fromcp; 1477 len = nfsm_rndup(len)-len; 1478 if (len > 0) { 1479 if (rem >= len) 1480 *dposp += len; 1481 else if (error = nfs_adv(mdp, dposp, len, rem)) 1482 goto out; 1483 } 1484 ndp->ni_pathlen = tocp - cnp->cn_pnbuf; 1485 cnp->cn_nameptr = cnp->cn_pnbuf; 1486 /* 1487 * Extract and set starting directory. 1488 */ 1489 if (error = nfsrv_fhtovp(fhp, FALSE, &dp, ndp->ni_cnd.cn_cred, slp, 1490 nam, &rdonly, kerbflag)) 1491 goto out; 1492 if (dp->v_type != VDIR) { 1493 vrele(dp); 1494 error = ENOTDIR; 1495 goto out; 1496 } 1497 VREF(dp); 1498 *retdirp = dp; 1499 ndp->ni_startdir = dp; 1500 if (rdonly) 1501 cnp->cn_flags |= (NOCROSSMOUNT | RDONLY); 1502 else 1503 cnp->cn_flags |= NOCROSSMOUNT; 1504 /* 1505 * And call lookup() to do the real work 1506 */ 1507 cnp->cn_proc = p; 1508 if (error = lookup(ndp)) 1509 goto out; 1510 /* 1511 * Check for encountering a symbolic link 1512 */ 1513 if (cnp->cn_flags & ISSYMLINK) { 1514 if ((cnp->cn_flags & LOCKPARENT) && ndp->ni_pathlen == 1) 1515 vput(ndp->ni_dvp); 1516 else 1517 vrele(ndp->ni_dvp); 1518 vput(ndp->ni_vp); 1519 ndp->ni_vp = NULL; 1520 error = EINVAL; 1521 goto out; 1522 } 1523 1524 nfsrv_object_create(ndp->ni_vp); 1525 1526 /* 1527 * Check for saved name request 1528 */ 1529 if (cnp->cn_flags & (SAVENAME | SAVESTART)) { 1530 cnp->cn_flags |= HASBUF; 1531 return (0); 1532 } 1533out: 1534 FREE(cnp->cn_pnbuf, M_NAMEI); 1535 return (error); 1536} 1537 1538/* 1539 * A fiddled version of m_adj() that ensures null fill to a long 1540 * boundary and only trims off the back end 1541 */ 1542void 1543nfsm_adj(mp, len, nul) 1544 struct mbuf *mp; 1545 register int len; 1546 int nul; 1547{ 1548 register struct mbuf *m; 1549 register int count, i; 1550 register char *cp; 1551 1552 /* 1553 * Trim from tail. Scan the mbuf chain, 1554 * calculating its length and finding the last mbuf. 1555 * If the adjustment only affects this mbuf, then just 1556 * adjust and return. Otherwise, rescan and truncate 1557 * after the remaining size. 1558 */ 1559 count = 0; 1560 m = mp; 1561 for (;;) { 1562 count += m->m_len; 1563 if (m->m_next == (struct mbuf *)0) 1564 break; 1565 m = m->m_next; 1566 } 1567 if (m->m_len > len) { 1568 m->m_len -= len; 1569 if (nul > 0) { 1570 cp = mtod(m, caddr_t)+m->m_len-nul; 1571 for (i = 0; i < nul; i++) 1572 *cp++ = '\0'; 1573 } 1574 return; 1575 } 1576 count -= len; 1577 if (count < 0) 1578 count = 0; 1579 /* 1580 * Correct length for chain is "count". 1581 * Find the mbuf with last data, adjust its length, 1582 * and toss data from remaining mbufs on chain. 1583 */ 1584 for (m = mp; m; m = m->m_next) { 1585 if (m->m_len >= count) { 1586 m->m_len = count; 1587 if (nul > 0) { 1588 cp = mtod(m, caddr_t)+m->m_len-nul; 1589 for (i = 0; i < nul; i++) 1590 *cp++ = '\0'; 1591 } 1592 break; 1593 } 1594 count -= m->m_len; 1595 } 1596 for (m = m->m_next;m;m = m->m_next) 1597 m->m_len = 0; 1598} 1599 1600/* 1601 * Make these functions instead of macros, so that the kernel text size 1602 * doesn't get too big... 1603 */ 1604void 1605nfsm_srvwcc(nfsd, before_ret, before_vap, after_ret, after_vap, mbp, bposp) 1606 struct nfsrv_descript *nfsd; 1607 int before_ret; 1608 register struct vattr *before_vap; 1609 int after_ret; 1610 struct vattr *after_vap; 1611 struct mbuf **mbp; 1612 char **bposp; 1613{ 1614 register struct mbuf *mb = *mbp, *mb2; 1615 register char *bpos = *bposp; 1616 register u_long *tl; 1617 1618 if (before_ret) { 1619 nfsm_build(tl, u_long *, NFSX_UNSIGNED); 1620 *tl = nfs_false; 1621 } else { 1622 nfsm_build(tl, u_long *, 7 * NFSX_UNSIGNED); 1623 *tl++ = nfs_true; 1624 txdr_hyper(&(before_vap->va_size), tl); 1625 tl += 2; 1626 txdr_nfsv3time(&(before_vap->va_mtime), tl); 1627 tl += 2; 1628 txdr_nfsv3time(&(before_vap->va_ctime), tl); 1629 } 1630 *bposp = bpos; 1631 *mbp = mb; 1632 nfsm_srvpostopattr(nfsd, after_ret, after_vap, mbp, bposp); 1633} 1634 1635void 1636nfsm_srvpostopattr(nfsd, after_ret, after_vap, mbp, bposp) 1637 struct nfsrv_descript *nfsd; 1638 int after_ret; 1639 struct vattr *after_vap; 1640 struct mbuf **mbp; 1641 char **bposp; 1642{ 1643 register struct mbuf *mb = *mbp, *mb2; 1644 register char *bpos = *bposp; 1645 register u_long *tl; 1646 register struct nfs_fattr *fp; 1647 1648 if (after_ret) { 1649 nfsm_build(tl, u_long *, NFSX_UNSIGNED); 1650 *tl = nfs_false; 1651 } else { 1652 nfsm_build(tl, u_long *, NFSX_UNSIGNED + NFSX_V3FATTR); 1653 *tl++ = nfs_true; 1654 fp = (struct nfs_fattr *)tl; 1655 nfsm_srvfattr(nfsd, after_vap, fp); 1656 } 1657 *mbp = mb; 1658 *bposp = bpos; 1659} 1660 1661void 1662nfsm_srvfattr(nfsd, vap, fp) 1663 register struct nfsrv_descript *nfsd; 1664 register struct vattr *vap; 1665 register struct nfs_fattr *fp; 1666{ 1667 1668 fp->fa_nlink = txdr_unsigned(vap->va_nlink); 1669 fp->fa_uid = txdr_unsigned(vap->va_uid); 1670 fp->fa_gid = txdr_unsigned(vap->va_gid); 1671 if (nfsd->nd_flag & ND_NFSV3) { 1672 fp->fa_type = vtonfsv3_type(vap->va_type); 1673 fp->fa_mode = vtonfsv3_mode(vap->va_mode); 1674 txdr_hyper(&vap->va_size, &fp->fa3_size); 1675 txdr_hyper(&vap->va_bytes, &fp->fa3_used); 1676 fp->fa3_rdev.specdata1 = txdr_unsigned(major(vap->va_rdev)); 1677 fp->fa3_rdev.specdata2 = txdr_unsigned(minor(vap->va_rdev)); 1678 fp->fa3_fsid.nfsuquad[0] = 0; 1679 fp->fa3_fsid.nfsuquad[1] = txdr_unsigned(vap->va_fsid); 1680 fp->fa3_fileid.nfsuquad[0] = 0; 1681 fp->fa3_fileid.nfsuquad[1] = txdr_unsigned(vap->va_fileid); 1682 txdr_nfsv3time(&vap->va_atime, &fp->fa3_atime); 1683 txdr_nfsv3time(&vap->va_mtime, &fp->fa3_mtime); 1684 txdr_nfsv3time(&vap->va_ctime, &fp->fa3_ctime); 1685 } else { 1686 fp->fa_type = vtonfsv2_type(vap->va_type); 1687 fp->fa_mode = vtonfsv2_mode(vap->va_type, vap->va_mode); 1688 fp->fa2_size = txdr_unsigned(vap->va_size); 1689 fp->fa2_blocksize = txdr_unsigned(vap->va_blocksize); 1690 if (vap->va_type == VFIFO) 1691 fp->fa2_rdev = 0xffffffff; 1692 else 1693 fp->fa2_rdev = txdr_unsigned(vap->va_rdev); 1694 fp->fa2_blocks = txdr_unsigned(vap->va_bytes / NFS_FABLKSIZE); 1695 fp->fa2_fsid = txdr_unsigned(vap->va_fsid); 1696 fp->fa2_fileid = txdr_unsigned(vap->va_fileid); 1697 txdr_nfsv2time(&vap->va_atime, &fp->fa2_atime); 1698 txdr_nfsv2time(&vap->va_mtime, &fp->fa2_mtime); 1699 txdr_nfsv2time(&vap->va_ctime, &fp->fa2_ctime); 1700 } 1701} 1702 1703/* 1704 * nfsrv_fhtovp() - convert a fh to a vnode ptr (optionally locked) 1705 * - look up fsid in mount list (if not found ret error) 1706 * - get vp and export rights by calling VFS_FHTOVP() 1707 * - if cred->cr_uid == 0 or MNT_EXPORTANON set it to credanon 1708 * - if not lockflag unlock it with VOP_UNLOCK() 1709 */ 1710int 1711nfsrv_fhtovp(fhp, lockflag, vpp, cred, slp, nam, rdonlyp, kerbflag) 1712 fhandle_t *fhp; 1713 int lockflag; 1714 struct vnode **vpp; 1715 struct ucred *cred; 1716 struct nfssvc_sock *slp; 1717 struct mbuf *nam; 1718 int *rdonlyp; 1719 int kerbflag; 1720{ 1721 struct proc *p = curproc; /* XXX */ 1722 register struct mount *mp; 1723 register int i; 1724 struct ucred *credanon; 1725 int error, exflags; 1726 1727 *vpp = (struct vnode *)0; 1728 mp = vfs_getvfs(&fhp->fh_fsid); 1729 if (!mp) 1730 return (ESTALE); 1731 error = VFS_FHTOVP(mp, &fhp->fh_fid, nam, vpp, &exflags, &credanon); 1732 if (error) 1733 return (error); 1734 /* 1735 * Check/setup credentials. 1736 */ 1737 if (exflags & MNT_EXKERB) { 1738 if (!kerbflag) { 1739 vput(*vpp); 1740 return (NFSERR_AUTHERR | AUTH_TOOWEAK); 1741 } 1742 } else if (kerbflag) { 1743 vput(*vpp); 1744 return (NFSERR_AUTHERR | AUTH_TOOWEAK); 1745 } else if (cred->cr_uid == 0 || (exflags & MNT_EXPORTANON)) { 1746 cred->cr_uid = credanon->cr_uid; 1747 for (i = 0; i < credanon->cr_ngroups && i < NGROUPS; i++) 1748 cred->cr_groups[i] = credanon->cr_groups[i]; 1749 cred->cr_ngroups = i; 1750 } 1751 if (exflags & MNT_EXRDONLY) 1752 *rdonlyp = 1; 1753 else 1754 *rdonlyp = 0; 1755 1756 nfsrv_object_create(*vpp); 1757 1758 if (!lockflag) 1759 VOP_UNLOCK(*vpp, 0, p); 1760 return (0); 1761} 1762 1763#endif /* NFS_NOSERVER */ 1764/* 1765 * This function compares two net addresses by family and returns TRUE 1766 * if they are the same host. 1767 * If there is any doubt, return FALSE. 1768 * The AF_INET family is handled as a special case so that address mbufs 1769 * don't need to be saved to store "struct in_addr", which is only 4 bytes. 1770 */ 1771int 1772netaddr_match(family, haddr, nam) 1773 int family; 1774 union nethostaddr *haddr; 1775 struct mbuf *nam; 1776{ 1777 register struct sockaddr_in *inetaddr; 1778 1779 switch (family) { 1780 case AF_INET: 1781 inetaddr = mtod(nam, struct sockaddr_in *); 1782 if (inetaddr->sin_family == AF_INET && 1783 inetaddr->sin_addr.s_addr == haddr->had_inetaddr) 1784 return (1); 1785 break; 1786#ifdef ISO 1787 case AF_ISO: 1788 { 1789 register struct sockaddr_iso *isoaddr1, *isoaddr2; 1790 1791 isoaddr1 = mtod(nam, struct sockaddr_iso *); 1792 isoaddr2 = mtod(haddr->had_nam, struct sockaddr_iso *); 1793 if (isoaddr1->siso_family == AF_ISO && 1794 isoaddr1->siso_nlen > 0 && 1795 isoaddr1->siso_nlen == isoaddr2->siso_nlen && 1796 SAME_ISOADDR(isoaddr1, isoaddr2)) 1797 return (1); 1798 break; 1799 } 1800#endif /* ISO */ 1801 default: 1802 break; 1803 }; 1804 return (0); 1805} 1806 1807static nfsuint64 nfs_nullcookie = { 0, 0 }; 1808/* 1809 * This function finds the directory cookie that corresponds to the 1810 * logical byte offset given. 1811 */ 1812nfsuint64 * 1813nfs_getcookie(np, off, add) 1814 register struct nfsnode *np; 1815 off_t off; 1816 int add; 1817{ 1818 register struct nfsdmap *dp, *dp2; 1819 register int pos; 1820 1821 pos = off / NFS_DIRBLKSIZ; 1822 if (pos == 0) { 1823#ifdef DIAGNOSTIC 1824 if (add) 1825 panic("nfs getcookie add at 0"); 1826#endif 1827 return (&nfs_nullcookie); 1828 } 1829 pos--; 1830 dp = np->n_cookies.lh_first; 1831 if (!dp) { 1832 if (add) { 1833 MALLOC(dp, struct nfsdmap *, sizeof (struct nfsdmap), 1834 M_NFSDIROFF, M_WAITOK); 1835 dp->ndm_eocookie = 0; 1836 LIST_INSERT_HEAD(&np->n_cookies, dp, ndm_list); 1837 } else 1838 return ((nfsuint64 *)0); 1839 } 1840 while (pos >= NFSNUMCOOKIES) { 1841 pos -= NFSNUMCOOKIES; 1842 if (dp->ndm_list.le_next) { 1843 if (!add && dp->ndm_eocookie < NFSNUMCOOKIES && 1844 pos >= dp->ndm_eocookie) 1845 return ((nfsuint64 *)0); 1846 dp = dp->ndm_list.le_next; 1847 } else if (add) { 1848 MALLOC(dp2, struct nfsdmap *, sizeof (struct nfsdmap), 1849 M_NFSDIROFF, M_WAITOK); 1850 dp2->ndm_eocookie = 0; 1851 LIST_INSERT_AFTER(dp, dp2, ndm_list); 1852 dp = dp2; 1853 } else 1854 return ((nfsuint64 *)0); 1855 } 1856 if (pos >= dp->ndm_eocookie) { 1857 if (add) 1858 dp->ndm_eocookie = pos + 1; 1859 else 1860 return ((nfsuint64 *)0); 1861 } 1862 return (&dp->ndm_cookies[pos]); 1863} 1864 1865/* 1866 * Invalidate cached directory information, except for the actual directory 1867 * blocks (which are invalidated separately). 1868 * Done mainly to avoid the use of stale offset cookies. 1869 */ 1870void 1871nfs_invaldir(vp) 1872 register struct vnode *vp; 1873{ 1874 register struct nfsnode *np = VTONFS(vp); 1875 1876#ifdef DIAGNOSTIC 1877 if (vp->v_type != VDIR) 1878 panic("nfs: invaldir not dir"); 1879#endif 1880 np->n_direofoffset = 0; 1881 np->n_cookieverf.nfsuquad[0] = 0; 1882 np->n_cookieverf.nfsuquad[1] = 0; 1883 if (np->n_cookies.lh_first) 1884 np->n_cookies.lh_first->ndm_eocookie = 0; 1885} 1886 1887/* 1888 * The write verifier has changed (probably due to a server reboot), so all 1889 * B_NEEDCOMMIT blocks will have to be written again. Since they are on the 1890 * dirty block list as B_DELWRI, all this takes is clearing the B_NEEDCOMMIT 1891 * flag. Once done the new write verifier can be set for the mount point. 1892 */ 1893void 1894nfs_clearcommit(mp) 1895 struct mount *mp; 1896{ 1897 register struct vnode *vp, *nvp; 1898 register struct buf *bp, *nbp; 1899 int s; 1900 1901 s = splbio(); 1902loop: 1903 for (vp = mp->mnt_vnodelist.lh_first; vp; vp = nvp) { 1904 if (vp->v_mount != mp) /* Paranoia */ 1905 goto loop; 1906 nvp = vp->v_mntvnodes.le_next; 1907 for (bp = vp->v_dirtyblkhd.lh_first; bp; bp = nbp) { 1908 nbp = bp->b_vnbufs.le_next; 1909 if ((bp->b_flags & (B_BUSY | B_DELWRI | B_NEEDCOMMIT)) 1910 == (B_DELWRI | B_NEEDCOMMIT)) 1911 bp->b_flags &= ~B_NEEDCOMMIT; 1912 } 1913 } 1914 splx(s); 1915} 1916 1917#ifndef NFS_NOSERVER 1918/* 1919 * Map errnos to NFS error numbers. For Version 3 also filter out error 1920 * numbers not specified for the associated procedure. 1921 */ 1922int 1923nfsrv_errmap(nd, err) 1924 struct nfsrv_descript *nd; 1925 register int err; 1926{ 1927 register short *defaulterrp, *errp; 1928 1929 if (nd->nd_flag & ND_NFSV3) { 1930 if (nd->nd_procnum <= NFSPROC_COMMIT) { 1931 errp = defaulterrp = nfsrv_v3errmap[nd->nd_procnum]; 1932 while (*++errp) { 1933 if (*errp == err) 1934 return (err); 1935 else if (*errp > err) 1936 break; 1937 } 1938 return ((int)*defaulterrp); 1939 } else 1940 return (err & 0xffff); 1941 } 1942 if (err <= ELAST) 1943 return ((int)nfsrv_v2errmap[err - 1]); 1944 return (NFSERR_IO); 1945} 1946 1947int 1948nfsrv_object_create(struct vnode *vp) { 1949 1950 if ((vp == NULL) || (vp->v_type != VREG)) 1951 return 1; 1952 return vfs_object_create(vp, curproc, curproc?curproc->p_ucred:NULL, 1); 1953} 1954#endif /* NFS_NOSERVER */ 1955 1956