1 /* $NetBSD: ntfs_vfsops.c,v 1.23 1999/11/15 19:38:14 jdolecek Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 1999 Semen Ustimenko 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD: src/sys/ntfs/ntfs_vfsops.c,v 1.20.2.5 2001/12/25 01:44:45 dillon Exp $ 29 * $DragonFly: src/sys/vfs/ntfs/ntfs_vfsops.c,v 1.25 2004/12/17 00:18:29 dillon Exp $ 30 */ 31 32 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/conf.h> 36 #include <sys/proc.h> 37 #include <sys/nlookup.h> 38 #include <sys/kernel.h> 39 #include <sys/vnode.h> 40 #include <sys/mount.h> 41 #include <sys/buf.h> 42 #include <sys/fcntl.h> 43 #include <sys/malloc.h> 44 #include <sys/systm.h> 45 #if defined(__NetBSD__) 46 #include <sys/device.h> 47 #endif 48 49 #include <vm/vm.h> 50 #include <vm/vm_param.h> 51 #if defined(__NetBSD__) 52 #include <vm/vm_prot.h> 53 #endif 54 #include <vm/vm_page.h> 55 #include <vm/vm_object.h> 56 #include <vm/vm_extern.h> 57 #include <vm/vm_zone.h> 58 59 #if defined(__NetBSD__) 60 #include <miscfs/specfs/specdev.h> 61 #endif 62 63 /*#define NTFS_DEBUG 1*/ 64 #include "ntfs.h" 65 #include "ntfs_inode.h" 66 #include "ntfs_subr.h" 67 #include "ntfs_vfsops.h" 68 #include "ntfs_ihash.h" 69 #include "ntfsmount.h" 70 71 extern struct vnodeopv_entry_desc ntfs_vnodeop_entries[]; 72 73 #if defined(__DragonFly__) 74 MALLOC_DEFINE(M_NTFSMNT, "NTFS mount", "NTFS mount structure"); 75 MALLOC_DEFINE(M_NTFSNTNODE,"NTFS ntnode", "NTFS ntnode information"); 76 MALLOC_DEFINE(M_NTFSFNODE,"NTFS fnode", "NTFS fnode information"); 77 MALLOC_DEFINE(M_NTFSDIR,"NTFS dir", "NTFS dir buffer"); 78 #endif 79 80 static int ntfs_root (struct mount *, struct vnode **); 81 static int ntfs_statfs (struct mount *, struct statfs *, 82 struct thread *); 83 static int ntfs_unmount (struct mount *, int, struct thread *); 84 static int ntfs_vget (struct mount *mp, ino_t ino, 85 struct vnode **vpp); 86 static int ntfs_mountfs (struct vnode *, struct mount *, 87 struct ntfs_args *, struct thread *); 88 static int ntfs_vptofh (struct vnode *, struct fid *); 89 static int ntfs_fhtovp (struct mount *, struct fid *, 90 struct vnode **); 91 92 #if !defined (__DragonFly__) 93 static int ntfs_quotactl (struct mount *, int, uid_t, caddr_t, 94 struct thread *); 95 static int ntfs_start (struct mount *, int, struct thread *); 96 static int ntfs_sync (struct mount *, int, struct ucred *, 97 struct thread *); 98 #endif 99 100 #if defined(__DragonFly__) 101 struct sockaddr; 102 static int ntfs_mount (struct mount *, char *, caddr_t, struct thread *); 103 static int ntfs_init (struct vfsconf *); 104 static int ntfs_checkexp (struct mount *, struct sockaddr *, 105 int *, struct ucred **); 106 #elif defined(__NetBSD__) 107 static int ntfs_mount (struct mount *, const char *, void *, 108 struct nameidata *, struct thread *); 109 static void ntfs_init (void); 110 static int ntfs_mountroot (void); 111 static int ntfs_sysctl (int *, u_int, void *, size_t *, void *, 112 size_t, struct thread *); 113 static int ntfs_checkexp (struct mount *, struct mbuf *, 114 int *, struct ucred **); 115 #endif 116 117 /* 118 * Verify a remote client has export rights and return these rights via. 119 * exflagsp and credanonp. 120 */ 121 static int 122 ntfs_checkexp(struct mount *mp, 123 #if defined(__DragonFly__) 124 struct sockaddr *nam, 125 #else /* defined(__NetBSD__) */ 126 struct mbuf *nam, 127 #endif 128 int *exflagsp, struct ucred **credanonp) 129 { 130 struct netcred *np; 131 struct ntfsmount *ntm = VFSTONTFS(mp); 132 133 /* 134 * Get the export permission structure for this <mp, client> tuple. 135 */ 136 np = vfs_export_lookup(mp, &ntm->ntm_export, nam); 137 if (np == NULL) 138 return (EACCES); 139 140 *exflagsp = np->netc_exflags; 141 *credanonp = &np->netc_anon; 142 return (0); 143 } 144 145 #if defined(__NetBSD__) 146 /*ARGSUSED*/ 147 static int 148 ntfs_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp, 149 size_t newlen, struct thread *td) 150 { 151 return (EINVAL); 152 } 153 154 static int 155 ntfs_mountroot(void) 156 { 157 struct mount *mp; 158 struct vnode *rootvp; 159 struct thread *td = curthread; /* XXX */ 160 struct ntfs_args args; 161 lwkt_tokref ilock; 162 int error; 163 164 if (root_device->dv_class != DV_DISK) 165 return (ENODEV); 166 167 /* 168 * Get vnodes for rootdev. 169 */ 170 if (bdevvp(rootdev, &rootvp)) 171 panic("ntfs_mountroot: can't setup rootvp"); 172 173 if ((error = vfs_rootmountalloc(MOUNT_NTFS, "root_device", &mp))) { 174 vrele(rootvp); 175 return (error); 176 } 177 178 args.flag = 0; 179 args.uid = 0; 180 args.gid = 0; 181 args.mode = 0777; 182 183 if ((error = ntfs_mountfs(rootvp, mp, &args, td)) != 0) { 184 mp->mnt_op->vfs_refcount--; 185 vfs_unbusy(mp); 186 free(mp, M_MOUNT); 187 vrele(rootvp); 188 return (error); 189 } 190 191 lwkt_gettoken(&ilock, &mountlist_token); 192 CIRCLEQ_INSERT_TAIL(&mountlist, mp, mnt_list); 193 lwkt_reltoken(&ilock); 194 (void)ntfs_statfs(mp, &mp->mnt_stat, td); 195 vfs_unbusy(mp); 196 return (0); 197 } 198 199 static void 200 ntfs_init(void) 201 { 202 ntfs_nthashinit(); 203 ntfs_toupper_init(); 204 } 205 206 #elif defined(__DragonFly__) 207 208 static int 209 ntfs_init(struct vfsconf *vcp) 210 { 211 ntfs_nthashinit(); 212 ntfs_toupper_init(); 213 return 0; 214 } 215 216 #endif /* NetBSD */ 217 218 static int 219 ntfs_mount(struct mount *mp, 220 #if defined(__DragonFly__) 221 char *path, caddr_t data, 222 #else 223 const char *path, void *data, 224 #endif 225 struct thread *td) 226 { 227 size_t size; 228 int error; 229 struct vnode *devvp; 230 struct ntfs_args args; 231 struct nlookupdata nd; 232 struct vnode *rootvp; 233 234 error = 0; 235 #ifdef __DragonFly__ 236 /* 237 * Use NULL path to flag a root mount 238 */ 239 if( path == NULL) { 240 /* 241 *** 242 * Mounting root file system 243 *** 244 */ 245 246 /* Get vnode for root device*/ 247 if( bdevvp( rootdev, &rootvp)) 248 panic("ffs_mountroot: can't setup bdevvp for root"); 249 250 /* 251 * FS specific handling 252 */ 253 mp->mnt_flag |= MNT_RDONLY; /* XXX globally applicable?*/ 254 255 /* 256 * Attempt mount 257 */ 258 if( ( error = ntfs_mountfs(rootvp, mp, &args, td)) != 0) { 259 /* fs specific cleanup (if any)*/ 260 goto error_1; 261 } 262 263 goto dostatfs; /* success*/ 264 265 } 266 #endif /* FreeBSD */ 267 268 /* 269 *** 270 * Mounting non-root file system or updating a file system 271 *** 272 */ 273 274 /* copy in user arguments*/ 275 error = copyin(data, (caddr_t)&args, sizeof (struct ntfs_args)); 276 if (error) 277 goto error_1; /* can't get arguments*/ 278 279 /* 280 * If updating, check whether changing from read-only to 281 * read/write; if there is no device name, that's all we do. 282 */ 283 if (mp->mnt_flag & MNT_UPDATE) { 284 /* if not updating name...*/ 285 if (args.fspec == 0) { 286 /* 287 * Process export requests. Jumping to "success" 288 * will return the vfs_export() error code. 289 */ 290 struct ntfsmount *ntm = VFSTONTFS(mp); 291 error = vfs_export(mp, &ntm->ntm_export, &args.export); 292 goto success; 293 } 294 295 printf("ntfs_mount(): MNT_UPDATE not supported\n"); 296 error = EINVAL; 297 goto error_1; 298 } 299 300 /* 301 * Not an update, or updating the name: look up the name 302 * and verify that it refers to a sensible block device. 303 */ 304 devvp = NULL; 305 error = nlookup_init(&nd, args.fspec, UIO_USERSPACE, NLC_FOLLOW); 306 if (error == 0) 307 error = nlookup(&nd); 308 if (error == 0) 309 error = cache_vref(nd.nl_ncp, nd.nl_cred, &devvp); 310 nlookup_done(&nd); 311 if (error) 312 goto error_1; 313 314 #if defined(__DragonFly__) 315 if (!vn_isdisk(devvp, &error)) 316 goto error_2; 317 #else 318 if (devvp->v_type != VBLK) { 319 error = ENOTBLK; 320 goto error_2; 321 } 322 if (umajor(devvp->v_udev) >= nblkdev) { 323 error = ENXIO; 324 goto error_2; 325 } 326 #endif 327 if (mp->mnt_flag & MNT_UPDATE) { 328 #if 0 329 /* 330 ******************** 331 * UPDATE 332 ******************** 333 */ 334 335 if (devvp != ntmp->um_devvp) 336 error = EINVAL; /* needs translation */ 337 else 338 vrele(devvp); 339 /* 340 * Update device name only on success 341 */ 342 if( !error) { 343 /* Save "mounted from" info for mount point (NULL pad)*/ 344 copyinstr( args.fspec, 345 mp->mnt_stat.f_mntfromname, 346 MNAMELEN - 1, 347 &size); 348 bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size); 349 } 350 #endif 351 } else { 352 /* 353 ******************** 354 * NEW MOUNT 355 ******************** 356 */ 357 358 /* 359 * Since this is a new mount, we want the names for 360 * the device and the mount point copied in. If an 361 * error occurs, the mountpoint is discarded by the 362 * upper level code. 363 */ 364 /* Save "last mounted on" info for mount point (NULL pad)*/ 365 copyinstr( path, /* mount point*/ 366 mp->mnt_stat.f_mntonname, /* save area*/ 367 MNAMELEN - 1, /* max size*/ 368 &size); /* real size*/ 369 bzero( mp->mnt_stat.f_mntonname + size, MNAMELEN - size); 370 371 /* Save "mounted from" info for mount point (NULL pad)*/ 372 copyinstr( args.fspec, /* device name*/ 373 mp->mnt_stat.f_mntfromname, /* save area*/ 374 MNAMELEN - 1, /* max size*/ 375 &size); /* real size*/ 376 bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size); 377 378 error = ntfs_mountfs(devvp, mp, &args, td); 379 } 380 if (error) { 381 goto error_2; 382 } 383 384 #ifdef __DragonFly__ 385 dostatfs: 386 #endif 387 /* 388 * Initialize FS stat information in mount struct; uses both 389 * mp->mnt_stat.f_mntonname and mp->mnt_stat.f_mntfromname 390 * 391 * This code is common to root and non-root mounts 392 */ 393 (void)VFS_STATFS(mp, &mp->mnt_stat, td); 394 395 goto success; 396 397 398 error_2: /* error with devvp held*/ 399 400 /* release devvp before failing*/ 401 vrele(devvp); 402 403 error_1: /* no state to back out*/ 404 405 success: 406 return(error); 407 } 408 409 /* 410 * Common code for mount and mountroot 411 */ 412 int 413 ntfs_mountfs(struct vnode *devvp, struct mount *mp, struct ntfs_args *argsp, 414 struct thread *td) 415 { 416 struct buf *bp; 417 struct ntfsmount *ntmp; 418 dev_t dev; 419 int error, ronly, ncount, i; 420 struct vnode *vp; 421 struct ucred *cred; 422 423 KKASSERT(td->td_proc); 424 cred = td->td_proc->p_ucred; 425 426 /* 427 * Disallow multiple mounts of the same device. 428 * Disallow mounting of a device that is currently in use 429 * (except for root, which might share swap device for miniroot). 430 * Flush out any old buffers remaining from a previous use. 431 */ 432 error = vfs_mountedon(devvp); 433 if (error) 434 return (error); 435 ncount = count_udev(devvp->v_udev); 436 #if defined(__DragonFly__) 437 if (devvp->v_object) 438 ncount -= 1; 439 #endif 440 if (ncount > 1) 441 return (EBUSY); 442 #if defined(__DragonFly__) 443 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, td); 444 error = vinvalbuf(devvp, V_SAVE, td, 0, 0); 445 VOP__UNLOCK(devvp, 0, td); 446 #else 447 error = vinvalbuf(devvp, V_SAVE, td, 0, 0); 448 #endif 449 if (error) 450 return (error); 451 452 ronly = (mp->mnt_flag & MNT_RDONLY) != 0; 453 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, td); 454 error = VOP_OPEN(devvp, ronly ? FREAD : FREAD|FWRITE, FSCRED, NULL, td); 455 VOP__UNLOCK(devvp, 0, td); 456 if (error) 457 return (error); 458 dev = devvp->v_rdev; 459 460 bp = NULL; 461 462 error = bread(devvp, BBLOCK, BBSIZE, &bp); 463 if (error) 464 goto out; 465 ntmp = malloc( sizeof *ntmp, M_NTFSMNT, M_WAITOK ); 466 bzero( ntmp, sizeof *ntmp ); 467 bcopy( bp->b_data, &ntmp->ntm_bootfile, sizeof(struct bootfile) ); 468 brelse( bp ); 469 bp = NULL; 470 471 if (strncmp(ntmp->ntm_bootfile.bf_sysid, NTFS_BBID, NTFS_BBIDLEN)) { 472 error = EINVAL; 473 dprintf(("ntfs_mountfs: invalid boot block\n")); 474 goto out; 475 } 476 477 { 478 int8_t cpr = ntmp->ntm_mftrecsz; 479 if( cpr > 0 ) 480 ntmp->ntm_bpmftrec = ntmp->ntm_spc * cpr; 481 else 482 ntmp->ntm_bpmftrec = (1 << (-cpr)) / ntmp->ntm_bps; 483 } 484 dprintf(("ntfs_mountfs(): bps: %d, spc: %d, media: %x, mftrecsz: %d (%d sects)\n", 485 ntmp->ntm_bps,ntmp->ntm_spc,ntmp->ntm_bootfile.bf_media, 486 ntmp->ntm_mftrecsz,ntmp->ntm_bpmftrec)); 487 dprintf(("ntfs_mountfs(): mftcn: 0x%x|0x%x\n", 488 (u_int32_t)ntmp->ntm_mftcn,(u_int32_t)ntmp->ntm_mftmirrcn)); 489 490 ntmp->ntm_mountp = mp; 491 ntmp->ntm_dev = dev; 492 ntmp->ntm_devvp = devvp; 493 ntmp->ntm_uid = argsp->uid; 494 ntmp->ntm_gid = argsp->gid; 495 ntmp->ntm_mode = argsp->mode; 496 ntmp->ntm_flag = argsp->flag; 497 498 /* Copy in the 8-bit to Unicode conversion table */ 499 if (argsp->flag & NTFSMNT_U2WTABLE) { 500 ntfs_82u_init(ntmp, argsp->u2w); 501 } else { 502 ntfs_82u_init(ntmp, NULL); 503 } 504 505 /* Initialize Unicode to 8-bit table from 8toU table */ 506 ntfs_u28_init(ntmp, ntmp->ntm_82u); 507 508 mp->mnt_data = (qaddr_t)ntmp; 509 510 dprintf(("ntfs_mountfs(): case-%s,%s uid: %d, gid: %d, mode: %o\n", 511 (ntmp->ntm_flag & NTFS_MFLAG_CASEINS)?"insens.":"sens.", 512 (ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES)?" allnames,":"", 513 ntmp->ntm_uid, ntmp->ntm_gid, ntmp->ntm_mode)); 514 515 vfs_add_vnodeops(mp, &mp->mnt_vn_norm_ops, ntfs_vnodeop_entries); 516 517 /* 518 * We read in some system nodes to do not allow 519 * reclaim them and to have everytime access to them. 520 */ 521 { 522 int pi[3] = { NTFS_MFTINO, NTFS_ROOTINO, NTFS_BITMAPINO }; 523 for (i=0; i<3; i++) { 524 error = VFS_VGET(mp, pi[i], &(ntmp->ntm_sysvn[pi[i]])); 525 if(error) 526 goto out1; 527 ntmp->ntm_sysvn[pi[i]]->v_flag |= VSYSTEM; 528 vref(ntmp->ntm_sysvn[pi[i]]); 529 vput(ntmp->ntm_sysvn[pi[i]]); 530 } 531 } 532 533 /* read the Unicode lowercase --> uppercase translation table, 534 * if necessary */ 535 if ((error = ntfs_toupper_use(mp, ntmp))) 536 goto out1; 537 538 /* 539 * Scan $BitMap and count free clusters 540 */ 541 error = ntfs_calccfree(ntmp, &ntmp->ntm_cfree); 542 if(error) 543 goto out1; 544 545 /* 546 * Read and translate to internal format attribute 547 * definition file. 548 */ 549 { 550 int num,j; 551 struct attrdef ad; 552 553 /* Open $AttrDef */ 554 error = VFS_VGET(mp, NTFS_ATTRDEFINO, &vp ); 555 if(error) 556 goto out1; 557 558 /* Count valid entries */ 559 for(num=0;;num++) { 560 error = ntfs_readattr(ntmp, VTONT(vp), 561 NTFS_A_DATA, NULL, 562 num * sizeof(ad), sizeof(ad), 563 &ad, NULL); 564 if (error) 565 goto out1; 566 if (ad.ad_name[0] == 0) 567 break; 568 } 569 570 /* Alloc memory for attribute definitions */ 571 MALLOC(ntmp->ntm_ad, struct ntvattrdef *, 572 num * sizeof(struct ntvattrdef), 573 M_NTFSMNT, M_WAITOK); 574 575 ntmp->ntm_adnum = num; 576 577 /* Read them and translate */ 578 for(i=0;i<num;i++){ 579 error = ntfs_readattr(ntmp, VTONT(vp), 580 NTFS_A_DATA, NULL, 581 i * sizeof(ad), sizeof(ad), 582 &ad, NULL); 583 if (error) 584 goto out1; 585 j = 0; 586 do { 587 ntmp->ntm_ad[i].ad_name[j] = ad.ad_name[j]; 588 } while(ad.ad_name[j++]); 589 ntmp->ntm_ad[i].ad_namelen = j - 1; 590 ntmp->ntm_ad[i].ad_type = ad.ad_type; 591 } 592 593 vput(vp); 594 } 595 596 #if defined(__DragonFly__) 597 mp->mnt_stat.f_fsid.val[0] = dev2udev(dev); 598 mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum; 599 #else 600 mp->mnt_stat.f_fsid.val[0] = dev; 601 mp->mnt_stat.f_fsid.val[1] = makefstype(MOUNT_NTFS); 602 #endif 603 mp->mnt_maxsymlinklen = 0; 604 mp->mnt_flag |= MNT_LOCAL; 605 dev->si_mountpoint = mp; 606 607 return (0); 608 609 out1: 610 for(i=0;i<NTFS_SYSNODESNUM;i++) 611 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 612 613 if (vflush(mp, 0, 0)) 614 dprintf(("ntfs_mountfs: vflush failed\n")); 615 616 out: 617 dev->si_mountpoint = NULL; 618 if (bp) 619 brelse(bp); 620 621 #if defined __NetBSD__ 622 /* lock the device vnode before calling VOP_CLOSE() */ 623 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, td); 624 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, td); 625 VOP__UNLOCK(devvp, 0, td); 626 #else 627 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, td); 628 #endif 629 630 return (error); 631 } 632 633 #if !defined(__DragonFly__) 634 static int 635 ntfs_start(struct mount *mp, int flags, struct thread *td) 636 { 637 return (0); 638 } 639 #endif 640 641 static int 642 ntfs_unmount(struct mount *mp, int mntflags, struct thread *td) 643 { 644 struct ntfsmount *ntmp; 645 int error, ronly = 0, flags, i; 646 647 dprintf(("ntfs_unmount: unmounting...\n")); 648 ntmp = VFSTONTFS(mp); 649 650 flags = 0; 651 if(mntflags & MNT_FORCE) 652 flags |= FORCECLOSE; 653 654 dprintf(("ntfs_unmount: vflushing...\n")); 655 error = vflush(mp, 0, flags | SKIPSYSTEM); 656 if (error) { 657 printf("ntfs_unmount: vflush failed: %d\n",error); 658 return (error); 659 } 660 661 /* Check if only system vnodes are rest */ 662 for(i=0;i<NTFS_SYSNODESNUM;i++) 663 if((ntmp->ntm_sysvn[i]) && 664 (ntmp->ntm_sysvn[i]->v_usecount > 1)) return (EBUSY); 665 666 /* Dereference all system vnodes */ 667 for(i=0;i<NTFS_SYSNODESNUM;i++) 668 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 669 670 /* vflush system vnodes */ 671 error = vflush(mp, 0, flags); 672 if (error) 673 printf("ntfs_unmount: vflush failed(sysnodes): %d\n",error); 674 675 /* Check if the type of device node isn't VBAD before 676 * touching v_specinfo. If the device vnode is revoked, the 677 * field is NULL and touching it causes null pointer derefercence. 678 */ 679 if (ntmp->ntm_devvp->v_type != VBAD) 680 ntmp->ntm_devvp->v_rdev->si_mountpoint = NULL; 681 682 vinvalbuf(ntmp->ntm_devvp, V_SAVE, td, 0, 0); 683 684 #if defined(__NetBSD__) 685 /* lock the device vnode before calling VOP_CLOSE() */ 686 VOP_LOCK(ntmp->ntm_devvp, LK_EXCLUSIVE | LK_RETRY); 687 error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE, td); 688 VOP__UNLOCK(ntmp->ntm_devvp, 0, td); 689 #else 690 error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE, td); 691 #endif 692 693 vrele(ntmp->ntm_devvp); 694 695 /* free the toupper table, if this has been last mounted ntfs volume */ 696 ntfs_toupper_unuse(); 697 698 dprintf(("ntfs_umount: freeing memory...\n")); 699 ntfs_u28_uninit(ntmp); 700 ntfs_82u_uninit(ntmp); 701 mp->mnt_data = (qaddr_t)0; 702 mp->mnt_flag &= ~MNT_LOCAL; 703 FREE(ntmp->ntm_ad, M_NTFSMNT); 704 FREE(ntmp, M_NTFSMNT); 705 return (error); 706 } 707 708 static int 709 ntfs_root(struct mount *mp, struct vnode **vpp) 710 { 711 struct vnode *nvp; 712 int error = 0; 713 714 dprintf(("ntfs_root(): sysvn: %p\n", 715 VFSTONTFS(mp)->ntm_sysvn[NTFS_ROOTINO])); 716 error = VFS_VGET(mp, (ino_t)NTFS_ROOTINO, &nvp); 717 if(error) { 718 printf("ntfs_root: VFS_VGET failed: %d\n",error); 719 return (error); 720 } 721 722 *vpp = nvp; 723 return (0); 724 } 725 726 #if !defined(__DragonFly__) 727 static int 728 ntfs_quotactl(struct mount *mp, int cmds, uid_t uid, caddr_t arg, 729 struct thread *td) 730 { 731 printf("\nntfs_quotactl():\n"); 732 return EOPNOTSUPP; 733 } 734 #endif 735 736 int 737 ntfs_calccfree(struct ntfsmount *ntmp, cn_t *cfreep) 738 { 739 struct vnode *vp; 740 u_int8_t *tmp; 741 int j, error; 742 long cfree = 0; 743 size_t bmsize, i; 744 745 vp = ntmp->ntm_sysvn[NTFS_BITMAPINO]; 746 747 bmsize = VTOF(vp)->f_size; 748 749 MALLOC(tmp, u_int8_t *, bmsize, M_TEMP, M_WAITOK); 750 751 error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL, 752 0, bmsize, tmp, NULL); 753 if (error) 754 goto out; 755 756 for(i=0;i<bmsize;i++) 757 for(j=0;j<8;j++) 758 if(~tmp[i] & (1 << j)) cfree++; 759 *cfreep = cfree; 760 761 out: 762 FREE(tmp, M_TEMP); 763 return(error); 764 } 765 766 static int 767 ntfs_statfs(struct mount *mp, struct statfs *sbp, struct thread *td) 768 { 769 struct ntfsmount *ntmp = VFSTONTFS(mp); 770 u_int64_t mftsize,mftallocated; 771 772 dprintf(("ntfs_statfs():\n")); 773 774 mftsize = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_size; 775 mftallocated = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_allocated; 776 777 #if defined(__DragonFly__) 778 sbp->f_type = mp->mnt_vfc->vfc_typenum; 779 #elif defined(__NetBSD__) 780 sbp->f_type = 0; 781 #else 782 sbp->f_type = MOUNT_NTFS; 783 #endif 784 sbp->f_bsize = ntmp->ntm_bps; 785 sbp->f_iosize = ntmp->ntm_bps * ntmp->ntm_spc; 786 sbp->f_blocks = ntmp->ntm_bootfile.bf_spv; 787 sbp->f_bfree = sbp->f_bavail = ntfs_cntobn(ntmp->ntm_cfree); 788 sbp->f_ffree = sbp->f_bfree / ntmp->ntm_bpmftrec; 789 sbp->f_files = mftallocated / ntfs_bntob(ntmp->ntm_bpmftrec) + 790 sbp->f_ffree; 791 if (sbp != &mp->mnt_stat) { 792 bcopy((caddr_t)mp->mnt_stat.f_mntonname, 793 (caddr_t)&sbp->f_mntonname[0], MNAMELEN); 794 bcopy((caddr_t)mp->mnt_stat.f_mntfromname, 795 (caddr_t)&sbp->f_mntfromname[0], MNAMELEN); 796 } 797 sbp->f_flags = mp->mnt_flag; 798 #ifdef __NetBSD__ 799 strncpy(sbp->f_fstypename, mp->mnt_op->vfs_name, MFSNAMELEN); 800 #endif 801 802 return (0); 803 } 804 805 #if !defined(__DragonFly__) 806 static int 807 ntfs_sync(struct mount *mp, int waitfor, struct ucred *cred, struct thread *td) 808 { 809 /*dprintf(("ntfs_sync():\n"));*/ 810 return (0); 811 } 812 #endif 813 814 /*ARGSUSED*/ 815 static int 816 ntfs_fhtovp(struct mount *mp, struct fid *fhp, struct vnode **vpp) 817 { 818 struct vnode *nvp; 819 struct ntfid *ntfhp = (struct ntfid *)fhp; 820 int error; 821 822 ddprintf(("ntfs_fhtovp(): %d\n", ntfhp->ntfid_ino)); 823 824 if ((error = VFS_VGET(mp, ntfhp->ntfid_ino, &nvp)) != 0) { 825 *vpp = NULLVP; 826 return (error); 827 } 828 /* XXX as unlink/rmdir/mkdir/creat are not currently possible 829 * with NTFS, we don't need to check anything else for now */ 830 *vpp = nvp; 831 832 return (0); 833 } 834 835 static int 836 ntfs_vptofh(struct vnode *vp, struct fid *fhp) 837 { 838 struct ntnode *ntp; 839 struct ntfid *ntfhp; 840 841 ddprintf(("ntfs_fhtovp(): %p\n", vp)); 842 843 ntp = VTONT(vp); 844 ntfhp = (struct ntfid *)fhp; 845 ntfhp->ntfid_len = sizeof(struct ntfid); 846 ntfhp->ntfid_ino = ntp->i_number; 847 /* ntfhp->ntfid_gen = ntp->i_gen; */ 848 return (0); 849 } 850 851 int 852 ntfs_vgetex(struct mount *mp, ino_t ino, u_int32_t attrtype, char *attrname, 853 u_long lkflags, u_long flags, struct thread *td, 854 struct vnode **vpp) 855 { 856 int error; 857 struct ntfsmount *ntmp; 858 struct ntnode *ip; 859 struct fnode *fp; 860 struct vnode *vp; 861 enum vtype f_type; 862 863 dprintf(("ntfs_vgetex: ino: %d, attr: 0x%x:%s, lkf: 0x%lx, f: 0x%lx\n", 864 ino, attrtype, attrname?attrname:"", (u_long)lkflags, 865 (u_long)flags )); 866 867 ntmp = VFSTONTFS(mp); 868 *vpp = NULL; 869 870 /* Get ntnode */ 871 error = ntfs_ntlookup(ntmp, ino, &ip); 872 if (error) { 873 printf("ntfs_vget: ntfs_ntget failed\n"); 874 return (error); 875 } 876 877 /* It may be not initialized fully, so force load it */ 878 if (!(flags & VG_DONTLOADIN) && !(ip->i_flag & IN_LOADED)) { 879 error = ntfs_loadntnode(ntmp, ip); 880 if(error) { 881 printf("ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO: %d\n", 882 ip->i_number); 883 ntfs_ntput(ip); 884 return (error); 885 } 886 } 887 888 error = ntfs_fget(ntmp, ip, attrtype, attrname, &fp); 889 if (error) { 890 printf("ntfs_vget: ntfs_fget failed\n"); 891 ntfs_ntput(ip); 892 return (error); 893 } 894 895 f_type = VNON; 896 if (!(flags & VG_DONTVALIDFN) && !(fp->f_flag & FN_VALID)) { 897 if ((ip->i_frflag & NTFS_FRFLAG_DIR) && 898 (fp->f_attrtype == NTFS_A_DATA && fp->f_attrname == NULL)) { 899 f_type = VDIR; 900 } else if (flags & VG_EXT) { 901 f_type = VNON; 902 fp->f_size = fp->f_allocated = 0; 903 } else { 904 f_type = VREG; 905 906 error = ntfs_filesize(ntmp, fp, 907 &fp->f_size, &fp->f_allocated); 908 if (error) { 909 ntfs_ntput(ip); 910 return (error); 911 } 912 } 913 914 fp->f_flag |= FN_VALID; 915 } 916 917 if (FTOV(fp)) { 918 VGET(FTOV(fp), lkflags, td); 919 *vpp = FTOV(fp); 920 ntfs_ntput(ip); 921 return (0); 922 } 923 924 error = getnewvnode(VT_NTFS, ntmp->ntm_mountp, &vp, VLKTIMEOUT, 0); 925 if(error) { 926 ntfs_frele(fp); 927 ntfs_ntput(ip); 928 return (error); 929 } 930 dprintf(("ntfs_vget: vnode: %p for ntnode: %d\n", vp,ino)); 931 932 fp->f_vp = vp; 933 vp->v_data = fp; 934 vp->v_type = f_type; 935 936 if (ino == NTFS_ROOTINO) 937 vp->v_flag |= VROOT; 938 939 ntfs_ntput(ip); 940 941 KKASSERT(lkflags & LK_TYPE_MASK); 942 KKASSERT((lkflags & LK_INTERLOCK) == 0); 943 /* XXX leave vnode locked exclusively from getnewvnode */ 944 *vpp = vp; 945 return (0); 946 947 } 948 949 static int 950 ntfs_vget(struct mount *mp, ino_t ino, struct vnode **vpp) 951 { 952 return ntfs_vgetex(mp, ino, NTFS_A_DATA, NULL, 953 LK_EXCLUSIVE | LK_RETRY, 0, curthread, vpp); 954 } 955 956 #if defined(__DragonFly__) 957 static struct vfsops ntfs_vfsops = { 958 ntfs_mount, 959 vfs_stdstart, 960 ntfs_unmount, 961 ntfs_root, 962 vfs_stdquotactl, 963 ntfs_statfs, 964 vfs_stdsync, 965 ntfs_vget, 966 ntfs_fhtovp, 967 ntfs_checkexp, 968 ntfs_vptofh, 969 ntfs_init, 970 ntfs_nthash_uninit, /* see ntfs_ihash.c */ 971 vfs_stdextattrctl, 972 }; 973 VFS_SET(ntfs_vfsops, ntfs, 0); 974 #elif defined(__NetBSD__) 975 extern struct vnodeopv_desc ntfs_vnodeop_opv_desc; 976 977 struct vnodeopv_desc *ntfs_vnodeopv_descs[] = { 978 &ntfs_vnodeop_opv_desc, 979 NULL, 980 }; 981 982 struct vfsops ntfs_vfsops = { 983 MOUNT_NTFS, 984 ntfs_mount, 985 ntfs_start, 986 ntfs_unmount, 987 ntfs_root, 988 ntfs_quotactl, 989 ntfs_statfs, 990 ntfs_sync, 991 ntfs_vget, 992 ntfs_fhtovp, 993 ntfs_vptofh, 994 ntfs_init, 995 ntfs_sysctl, 996 ntfs_mountroot, 997 ntfs_checkexp, 998 ntfs_vnodeopv_descs, 999 }; 1000 #else /* !NetBSD && !FreeBSD */ 1001 static struct vfsops ntfs_vfsops = { 1002 ntfs_mount, 1003 ntfs_start, 1004 ntfs_unmount, 1005 ntfs_root, 1006 ntfs_quotactl, 1007 ntfs_statfs, 1008 ntfs_sync, 1009 ntfs_vget, 1010 ntfs_fhtovp, 1011 ntfs_vptofh, 1012 ntfs_init, 1013 }; 1014 VFS_SET(ntfs_vfsops, ntfs, MOUNT_NTFS, 0); 1015 #endif 1016 1017 1018