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 1.27 2005/04/19 17:54:49 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 mountlist_insert(mp, MNTINS_LAST); 191 (void)ntfs_statfs(mp, &mp->mnt_stat, td); 192 vfs_unbusy(mp); 193 return (0); 194 } 195 196 static void 197 ntfs_init(void) 198 { 199 ntfs_nthashinit(); 200 ntfs_toupper_init(); 201 } 202 203 #elif defined(__DragonFly__) 204 205 static int 206 ntfs_init(struct vfsconf *vcp) 207 { 208 ntfs_nthashinit(); 209 ntfs_toupper_init(); 210 return 0; 211 } 212 213 #endif /* NetBSD */ 214 215 static int 216 ntfs_mount(struct mount *mp, 217 #if defined(__DragonFly__) 218 char *path, caddr_t data, 219 #else 220 const char *path, void *data, 221 #endif 222 struct thread *td) 223 { 224 size_t size; 225 int error; 226 struct vnode *devvp; 227 struct ntfs_args args; 228 struct nlookupdata nd; 229 struct vnode *rootvp; 230 231 error = 0; 232 #ifdef __DragonFly__ 233 /* 234 * Use NULL path to flag a root mount 235 */ 236 if( path == NULL) { 237 /* 238 *** 239 * Mounting root file system 240 *** 241 */ 242 243 /* Get vnode for root device*/ 244 if( bdevvp( rootdev, &rootvp)) 245 panic("ffs_mountroot: can't setup bdevvp for root"); 246 247 /* 248 * FS specific handling 249 */ 250 mp->mnt_flag |= MNT_RDONLY; /* XXX globally applicable?*/ 251 252 /* 253 * Attempt mount 254 */ 255 if( ( error = ntfs_mountfs(rootvp, mp, &args, td)) != 0) { 256 /* fs specific cleanup (if any)*/ 257 goto error_1; 258 } 259 260 goto dostatfs; /* success*/ 261 262 } 263 #endif /* FreeBSD */ 264 265 /* 266 *** 267 * Mounting non-root file system or updating a file system 268 *** 269 */ 270 271 /* copy in user arguments*/ 272 error = copyin(data, (caddr_t)&args, sizeof (struct ntfs_args)); 273 if (error) 274 goto error_1; /* can't get arguments*/ 275 276 /* 277 * If updating, check whether changing from read-only to 278 * read/write; if there is no device name, that's all we do. 279 */ 280 if (mp->mnt_flag & MNT_UPDATE) { 281 /* if not updating name...*/ 282 if (args.fspec == 0) { 283 /* 284 * Process export requests. Jumping to "success" 285 * will return the vfs_export() error code. 286 */ 287 struct ntfsmount *ntm = VFSTONTFS(mp); 288 error = vfs_export(mp, &ntm->ntm_export, &args.export); 289 goto success; 290 } 291 292 printf("ntfs_mount(): MNT_UPDATE not supported\n"); 293 error = EINVAL; 294 goto error_1; 295 } 296 297 /* 298 * Not an update, or updating the name: look up the name 299 * and verify that it refers to a sensible block device. 300 */ 301 devvp = NULL; 302 error = nlookup_init(&nd, args.fspec, UIO_USERSPACE, NLC_FOLLOW); 303 if (error == 0) 304 error = nlookup(&nd); 305 if (error == 0) 306 error = cache_vref(nd.nl_ncp, nd.nl_cred, &devvp); 307 nlookup_done(&nd); 308 if (error) 309 goto error_1; 310 311 #if defined(__DragonFly__) 312 if (!vn_isdisk(devvp, &error)) 313 goto error_2; 314 #else 315 if (devvp->v_type != VBLK) { 316 error = ENOTBLK; 317 goto error_2; 318 } 319 if (umajor(devvp->v_udev) >= nblkdev) { 320 error = ENXIO; 321 goto error_2; 322 } 323 #endif 324 if (mp->mnt_flag & MNT_UPDATE) { 325 #if 0 326 /* 327 ******************** 328 * UPDATE 329 ******************** 330 */ 331 332 if (devvp != ntmp->um_devvp) 333 error = EINVAL; /* needs translation */ 334 else 335 vrele(devvp); 336 /* 337 * Update device name only on success 338 */ 339 if( !error) { 340 /* Save "mounted from" info for mount point (NULL pad)*/ 341 copyinstr( args.fspec, 342 mp->mnt_stat.f_mntfromname, 343 MNAMELEN - 1, 344 &size); 345 bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size); 346 } 347 #endif 348 } else { 349 /* 350 ******************** 351 * NEW MOUNT 352 ******************** 353 */ 354 355 /* Save "mounted from" info for mount point (NULL pad)*/ 356 copyinstr( args.fspec, /* device name*/ 357 mp->mnt_stat.f_mntfromname, /* save area*/ 358 MNAMELEN - 1, /* max size*/ 359 &size); /* real size*/ 360 bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size); 361 362 error = ntfs_mountfs(devvp, mp, &args, td); 363 } 364 if (error) { 365 goto error_2; 366 } 367 368 #ifdef __DragonFly__ 369 dostatfs: 370 #endif 371 /* 372 * Initialize FS stat information in mount struct; uses 373 * mp->mnt_stat.f_mntfromname. 374 * 375 * This code is common to root and non-root mounts 376 */ 377 (void)VFS_STATFS(mp, &mp->mnt_stat, td); 378 379 goto success; 380 381 382 error_2: /* error with devvp held*/ 383 384 /* release devvp before failing*/ 385 vrele(devvp); 386 387 error_1: /* no state to back out*/ 388 389 success: 390 return(error); 391 } 392 393 /* 394 * Common code for mount and mountroot 395 */ 396 int 397 ntfs_mountfs(struct vnode *devvp, struct mount *mp, struct ntfs_args *argsp, 398 struct thread *td) 399 { 400 struct buf *bp; 401 struct ntfsmount *ntmp; 402 dev_t dev; 403 int error, ronly, ncount, i; 404 struct vnode *vp; 405 struct ucred *cred; 406 407 KKASSERT(td->td_proc); 408 cred = td->td_proc->p_ucred; 409 410 /* 411 * Disallow multiple mounts of the same device. 412 * Disallow mounting of a device that is currently in use 413 * (except for root, which might share swap device for miniroot). 414 * Flush out any old buffers remaining from a previous use. 415 */ 416 error = vfs_mountedon(devvp); 417 if (error) 418 return (error); 419 ncount = count_udev(devvp->v_udev); 420 #if defined(__DragonFly__) 421 if (devvp->v_object) 422 ncount -= 1; 423 #endif 424 if (ncount > 1) 425 return (EBUSY); 426 #if defined(__DragonFly__) 427 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, td); 428 error = vinvalbuf(devvp, V_SAVE, td, 0, 0); 429 VOP__UNLOCK(devvp, 0, td); 430 #else 431 error = vinvalbuf(devvp, V_SAVE, td, 0, 0); 432 #endif 433 if (error) 434 return (error); 435 436 ronly = (mp->mnt_flag & MNT_RDONLY) != 0; 437 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, td); 438 error = VOP_OPEN(devvp, ronly ? FREAD : FREAD|FWRITE, FSCRED, NULL, td); 439 VOP__UNLOCK(devvp, 0, td); 440 if (error) 441 return (error); 442 dev = devvp->v_rdev; 443 444 bp = NULL; 445 446 error = bread(devvp, BBLOCK, BBSIZE, &bp); 447 if (error) 448 goto out; 449 ntmp = malloc( sizeof *ntmp, M_NTFSMNT, M_WAITOK ); 450 bzero( ntmp, sizeof *ntmp ); 451 bcopy( bp->b_data, &ntmp->ntm_bootfile, sizeof(struct bootfile) ); 452 brelse( bp ); 453 bp = NULL; 454 455 if (strncmp(ntmp->ntm_bootfile.bf_sysid, NTFS_BBID, NTFS_BBIDLEN)) { 456 error = EINVAL; 457 dprintf(("ntfs_mountfs: invalid boot block\n")); 458 goto out; 459 } 460 461 { 462 int8_t cpr = ntmp->ntm_mftrecsz; 463 if( cpr > 0 ) 464 ntmp->ntm_bpmftrec = ntmp->ntm_spc * cpr; 465 else 466 ntmp->ntm_bpmftrec = (1 << (-cpr)) / ntmp->ntm_bps; 467 } 468 dprintf(("ntfs_mountfs(): bps: %d, spc: %d, media: %x, mftrecsz: %d (%d sects)\n", 469 ntmp->ntm_bps,ntmp->ntm_spc,ntmp->ntm_bootfile.bf_media, 470 ntmp->ntm_mftrecsz,ntmp->ntm_bpmftrec)); 471 dprintf(("ntfs_mountfs(): mftcn: 0x%x|0x%x\n", 472 (u_int32_t)ntmp->ntm_mftcn,(u_int32_t)ntmp->ntm_mftmirrcn)); 473 474 ntmp->ntm_mountp = mp; 475 ntmp->ntm_dev = dev; 476 ntmp->ntm_devvp = devvp; 477 ntmp->ntm_uid = argsp->uid; 478 ntmp->ntm_gid = argsp->gid; 479 ntmp->ntm_mode = argsp->mode; 480 ntmp->ntm_flag = argsp->flag; 481 482 /* Copy in the 8-bit to Unicode conversion table */ 483 if (argsp->flag & NTFSMNT_U2WTABLE) { 484 ntfs_82u_init(ntmp, argsp->u2w); 485 } else { 486 ntfs_82u_init(ntmp, NULL); 487 } 488 489 /* Initialize Unicode to 8-bit table from 8toU table */ 490 ntfs_u28_init(ntmp, ntmp->ntm_82u); 491 492 mp->mnt_data = (qaddr_t)ntmp; 493 494 dprintf(("ntfs_mountfs(): case-%s,%s uid: %d, gid: %d, mode: %o\n", 495 (ntmp->ntm_flag & NTFS_MFLAG_CASEINS)?"insens.":"sens.", 496 (ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES)?" allnames,":"", 497 ntmp->ntm_uid, ntmp->ntm_gid, ntmp->ntm_mode)); 498 499 vfs_add_vnodeops(mp, &mp->mnt_vn_norm_ops, ntfs_vnodeop_entries); 500 501 /* 502 * We read in some system nodes to do not allow 503 * reclaim them and to have everytime access to them. 504 */ 505 { 506 int pi[3] = { NTFS_MFTINO, NTFS_ROOTINO, NTFS_BITMAPINO }; 507 for (i=0; i<3; i++) { 508 error = VFS_VGET(mp, pi[i], &(ntmp->ntm_sysvn[pi[i]])); 509 if(error) 510 goto out1; 511 ntmp->ntm_sysvn[pi[i]]->v_flag |= VSYSTEM; 512 vref(ntmp->ntm_sysvn[pi[i]]); 513 vput(ntmp->ntm_sysvn[pi[i]]); 514 } 515 } 516 517 /* read the Unicode lowercase --> uppercase translation table, 518 * if necessary */ 519 if ((error = ntfs_toupper_use(mp, ntmp))) 520 goto out1; 521 522 /* 523 * Scan $BitMap and count free clusters 524 */ 525 error = ntfs_calccfree(ntmp, &ntmp->ntm_cfree); 526 if(error) 527 goto out1; 528 529 /* 530 * Read and translate to internal format attribute 531 * definition file. 532 */ 533 { 534 int num,j; 535 struct attrdef ad; 536 537 /* Open $AttrDef */ 538 error = VFS_VGET(mp, NTFS_ATTRDEFINO, &vp ); 539 if(error) 540 goto out1; 541 542 /* Count valid entries */ 543 for(num=0;;num++) { 544 error = ntfs_readattr(ntmp, VTONT(vp), 545 NTFS_A_DATA, NULL, 546 num * sizeof(ad), sizeof(ad), 547 &ad, NULL); 548 if (error) 549 goto out1; 550 if (ad.ad_name[0] == 0) 551 break; 552 } 553 554 /* Alloc memory for attribute definitions */ 555 MALLOC(ntmp->ntm_ad, struct ntvattrdef *, 556 num * sizeof(struct ntvattrdef), 557 M_NTFSMNT, M_WAITOK); 558 559 ntmp->ntm_adnum = num; 560 561 /* Read them and translate */ 562 for(i=0;i<num;i++){ 563 error = ntfs_readattr(ntmp, VTONT(vp), 564 NTFS_A_DATA, NULL, 565 i * sizeof(ad), sizeof(ad), 566 &ad, NULL); 567 if (error) 568 goto out1; 569 j = 0; 570 do { 571 ntmp->ntm_ad[i].ad_name[j] = ad.ad_name[j]; 572 } while(ad.ad_name[j++]); 573 ntmp->ntm_ad[i].ad_namelen = j - 1; 574 ntmp->ntm_ad[i].ad_type = ad.ad_type; 575 } 576 577 vput(vp); 578 } 579 580 #if defined(__DragonFly__) 581 mp->mnt_stat.f_fsid.val[0] = dev2udev(dev); 582 mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum; 583 #else 584 mp->mnt_stat.f_fsid.val[0] = dev; 585 mp->mnt_stat.f_fsid.val[1] = makefstype(MOUNT_NTFS); 586 #endif 587 mp->mnt_maxsymlinklen = 0; 588 mp->mnt_flag |= MNT_LOCAL; 589 dev->si_mountpoint = mp; 590 591 return (0); 592 593 out1: 594 for(i=0;i<NTFS_SYSNODESNUM;i++) 595 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 596 597 if (vflush(mp, 0, 0)) 598 dprintf(("ntfs_mountfs: vflush failed\n")); 599 600 out: 601 dev->si_mountpoint = NULL; 602 if (bp) 603 brelse(bp); 604 605 #if defined __NetBSD__ 606 /* lock the device vnode before calling VOP_CLOSE() */ 607 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, td); 608 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, td); 609 VOP__UNLOCK(devvp, 0, td); 610 #else 611 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, td); 612 #endif 613 614 return (error); 615 } 616 617 #if !defined(__DragonFly__) 618 static int 619 ntfs_start(struct mount *mp, int flags, struct thread *td) 620 { 621 return (0); 622 } 623 #endif 624 625 static int 626 ntfs_unmount(struct mount *mp, int mntflags, struct thread *td) 627 { 628 struct ntfsmount *ntmp; 629 int error, ronly = 0, flags, i; 630 631 dprintf(("ntfs_unmount: unmounting...\n")); 632 ntmp = VFSTONTFS(mp); 633 634 flags = 0; 635 if(mntflags & MNT_FORCE) 636 flags |= FORCECLOSE; 637 638 dprintf(("ntfs_unmount: vflushing...\n")); 639 error = vflush(mp, 0, flags | SKIPSYSTEM); 640 if (error) { 641 printf("ntfs_unmount: vflush failed: %d\n",error); 642 return (error); 643 } 644 645 /* Check if only system vnodes are rest */ 646 for(i=0;i<NTFS_SYSNODESNUM;i++) 647 if((ntmp->ntm_sysvn[i]) && 648 (ntmp->ntm_sysvn[i]->v_usecount > 1)) return (EBUSY); 649 650 /* Dereference all system vnodes */ 651 for(i=0;i<NTFS_SYSNODESNUM;i++) 652 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 653 654 /* vflush system vnodes */ 655 error = vflush(mp, 0, flags); 656 if (error) 657 printf("ntfs_unmount: vflush failed(sysnodes): %d\n",error); 658 659 /* Check if the type of device node isn't VBAD before 660 * touching v_specinfo. If the device vnode is revoked, the 661 * field is NULL and touching it causes null pointer derefercence. 662 */ 663 if (ntmp->ntm_devvp->v_type != VBAD) 664 ntmp->ntm_devvp->v_rdev->si_mountpoint = NULL; 665 666 vinvalbuf(ntmp->ntm_devvp, V_SAVE, td, 0, 0); 667 668 #if defined(__NetBSD__) 669 /* lock the device vnode before calling VOP_CLOSE() */ 670 VOP_LOCK(ntmp->ntm_devvp, LK_EXCLUSIVE | LK_RETRY); 671 error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE, td); 672 VOP__UNLOCK(ntmp->ntm_devvp, 0, td); 673 #else 674 error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE, td); 675 #endif 676 677 vrele(ntmp->ntm_devvp); 678 679 /* free the toupper table, if this has been last mounted ntfs volume */ 680 ntfs_toupper_unuse(); 681 682 dprintf(("ntfs_umount: freeing memory...\n")); 683 ntfs_u28_uninit(ntmp); 684 ntfs_82u_uninit(ntmp); 685 mp->mnt_data = (qaddr_t)0; 686 mp->mnt_flag &= ~MNT_LOCAL; 687 FREE(ntmp->ntm_ad, M_NTFSMNT); 688 FREE(ntmp, M_NTFSMNT); 689 return (error); 690 } 691 692 static int 693 ntfs_root(struct mount *mp, struct vnode **vpp) 694 { 695 struct vnode *nvp; 696 int error = 0; 697 698 dprintf(("ntfs_root(): sysvn: %p\n", 699 VFSTONTFS(mp)->ntm_sysvn[NTFS_ROOTINO])); 700 error = VFS_VGET(mp, (ino_t)NTFS_ROOTINO, &nvp); 701 if(error) { 702 printf("ntfs_root: VFS_VGET failed: %d\n",error); 703 return (error); 704 } 705 706 *vpp = nvp; 707 return (0); 708 } 709 710 #if !defined(__DragonFly__) 711 static int 712 ntfs_quotactl(struct mount *mp, int cmds, uid_t uid, caddr_t arg, 713 struct thread *td) 714 { 715 printf("\nntfs_quotactl():\n"); 716 return EOPNOTSUPP; 717 } 718 #endif 719 720 int 721 ntfs_calccfree(struct ntfsmount *ntmp, cn_t *cfreep) 722 { 723 struct vnode *vp; 724 u_int8_t *tmp; 725 int j, error; 726 long cfree = 0; 727 size_t bmsize, i; 728 729 vp = ntmp->ntm_sysvn[NTFS_BITMAPINO]; 730 731 bmsize = VTOF(vp)->f_size; 732 733 MALLOC(tmp, u_int8_t *, bmsize, M_TEMP, M_WAITOK); 734 735 error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL, 736 0, bmsize, tmp, NULL); 737 if (error) 738 goto out; 739 740 for(i=0;i<bmsize;i++) 741 for(j=0;j<8;j++) 742 if(~tmp[i] & (1 << j)) cfree++; 743 *cfreep = cfree; 744 745 out: 746 FREE(tmp, M_TEMP); 747 return(error); 748 } 749 750 static int 751 ntfs_statfs(struct mount *mp, struct statfs *sbp, struct thread *td) 752 { 753 struct ntfsmount *ntmp = VFSTONTFS(mp); 754 u_int64_t mftsize,mftallocated; 755 756 dprintf(("ntfs_statfs():\n")); 757 758 mftsize = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_size; 759 mftallocated = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_allocated; 760 761 #if defined(__DragonFly__) 762 sbp->f_type = mp->mnt_vfc->vfc_typenum; 763 #elif defined(__NetBSD__) 764 sbp->f_type = 0; 765 #else 766 sbp->f_type = MOUNT_NTFS; 767 #endif 768 sbp->f_bsize = ntmp->ntm_bps; 769 sbp->f_iosize = ntmp->ntm_bps * ntmp->ntm_spc; 770 sbp->f_blocks = ntmp->ntm_bootfile.bf_spv; 771 sbp->f_bfree = sbp->f_bavail = ntfs_cntobn(ntmp->ntm_cfree); 772 sbp->f_ffree = sbp->f_bfree / ntmp->ntm_bpmftrec; 773 sbp->f_files = mftallocated / ntfs_bntob(ntmp->ntm_bpmftrec) + 774 sbp->f_ffree; 775 if (sbp != &mp->mnt_stat) { 776 bcopy((caddr_t)mp->mnt_stat.f_mntfromname, 777 (caddr_t)&sbp->f_mntfromname[0], MNAMELEN); 778 } 779 sbp->f_flags = mp->mnt_flag; 780 #ifdef __NetBSD__ 781 strncpy(sbp->f_fstypename, mp->mnt_op->vfs_name, MFSNAMELEN); 782 #endif 783 784 return (0); 785 } 786 787 #if !defined(__DragonFly__) 788 static int 789 ntfs_sync(struct mount *mp, int waitfor, struct ucred *cred, struct thread *td) 790 { 791 /*dprintf(("ntfs_sync():\n"));*/ 792 return (0); 793 } 794 #endif 795 796 /*ARGSUSED*/ 797 static int 798 ntfs_fhtovp(struct mount *mp, struct fid *fhp, struct vnode **vpp) 799 { 800 struct vnode *nvp; 801 struct ntfid *ntfhp = (struct ntfid *)fhp; 802 int error; 803 804 ddprintf(("ntfs_fhtovp(): %d\n", ntfhp->ntfid_ino)); 805 806 if ((error = VFS_VGET(mp, ntfhp->ntfid_ino, &nvp)) != 0) { 807 *vpp = NULLVP; 808 return (error); 809 } 810 /* XXX as unlink/rmdir/mkdir/creat are not currently possible 811 * with NTFS, we don't need to check anything else for now */ 812 *vpp = nvp; 813 814 return (0); 815 } 816 817 static int 818 ntfs_vptofh(struct vnode *vp, struct fid *fhp) 819 { 820 struct ntnode *ntp; 821 struct ntfid *ntfhp; 822 823 ddprintf(("ntfs_fhtovp(): %p\n", vp)); 824 825 ntp = VTONT(vp); 826 ntfhp = (struct ntfid *)fhp; 827 ntfhp->ntfid_len = sizeof(struct ntfid); 828 ntfhp->ntfid_ino = ntp->i_number; 829 /* ntfhp->ntfid_gen = ntp->i_gen; */ 830 return (0); 831 } 832 833 int 834 ntfs_vgetex(struct mount *mp, ino_t ino, u_int32_t attrtype, char *attrname, 835 u_long lkflags, u_long flags, struct thread *td, 836 struct vnode **vpp) 837 { 838 int error; 839 struct ntfsmount *ntmp; 840 struct ntnode *ip; 841 struct fnode *fp; 842 struct vnode *vp; 843 enum vtype f_type; 844 845 dprintf(("ntfs_vgetex: ino: %d, attr: 0x%x:%s, lkf: 0x%lx, f: 0x%lx\n", 846 ino, attrtype, attrname?attrname:"", (u_long)lkflags, 847 (u_long)flags )); 848 849 ntmp = VFSTONTFS(mp); 850 *vpp = NULL; 851 852 /* Get ntnode */ 853 error = ntfs_ntlookup(ntmp, ino, &ip); 854 if (error) { 855 printf("ntfs_vget: ntfs_ntget failed\n"); 856 return (error); 857 } 858 859 /* It may be not initialized fully, so force load it */ 860 if (!(flags & VG_DONTLOADIN) && !(ip->i_flag & IN_LOADED)) { 861 error = ntfs_loadntnode(ntmp, ip); 862 if(error) { 863 printf("ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO: %d\n", 864 ip->i_number); 865 ntfs_ntput(ip); 866 return (error); 867 } 868 } 869 870 error = ntfs_fget(ntmp, ip, attrtype, attrname, &fp); 871 if (error) { 872 printf("ntfs_vget: ntfs_fget failed\n"); 873 ntfs_ntput(ip); 874 return (error); 875 } 876 877 f_type = VNON; 878 if (!(flags & VG_DONTVALIDFN) && !(fp->f_flag & FN_VALID)) { 879 if ((ip->i_frflag & NTFS_FRFLAG_DIR) && 880 (fp->f_attrtype == NTFS_A_DATA && fp->f_attrname == NULL)) { 881 f_type = VDIR; 882 } else if (flags & VG_EXT) { 883 f_type = VNON; 884 fp->f_size = fp->f_allocated = 0; 885 } else { 886 f_type = VREG; 887 888 error = ntfs_filesize(ntmp, fp, 889 &fp->f_size, &fp->f_allocated); 890 if (error) { 891 ntfs_ntput(ip); 892 return (error); 893 } 894 } 895 896 fp->f_flag |= FN_VALID; 897 } 898 899 if (FTOV(fp)) { 900 VGET(FTOV(fp), lkflags, td); 901 *vpp = FTOV(fp); 902 ntfs_ntput(ip); 903 return (0); 904 } 905 906 error = getnewvnode(VT_NTFS, ntmp->ntm_mountp, &vp, VLKTIMEOUT, 0); 907 if(error) { 908 ntfs_frele(fp); 909 ntfs_ntput(ip); 910 return (error); 911 } 912 dprintf(("ntfs_vget: vnode: %p for ntnode: %d\n", vp,ino)); 913 914 fp->f_vp = vp; 915 vp->v_data = fp; 916 vp->v_type = f_type; 917 918 if (ino == NTFS_ROOTINO) 919 vp->v_flag |= VROOT; 920 921 ntfs_ntput(ip); 922 923 KKASSERT(lkflags & LK_TYPE_MASK); 924 KKASSERT((lkflags & LK_INTERLOCK) == 0); 925 /* XXX leave vnode locked exclusively from getnewvnode */ 926 *vpp = vp; 927 return (0); 928 929 } 930 931 static int 932 ntfs_vget(struct mount *mp, ino_t ino, struct vnode **vpp) 933 { 934 return ntfs_vgetex(mp, ino, NTFS_A_DATA, NULL, 935 LK_EXCLUSIVE | LK_RETRY, 0, curthread, vpp); 936 } 937 938 #if defined(__DragonFly__) 939 static struct vfsops ntfs_vfsops = { 940 ntfs_mount, 941 vfs_stdstart, 942 ntfs_unmount, 943 ntfs_root, 944 vfs_stdquotactl, 945 ntfs_statfs, 946 vfs_stdsync, 947 ntfs_vget, 948 ntfs_fhtovp, 949 ntfs_checkexp, 950 ntfs_vptofh, 951 ntfs_init, 952 ntfs_nthash_uninit, /* see ntfs_ihash.c */ 953 vfs_stdextattrctl, 954 }; 955 VFS_SET(ntfs_vfsops, ntfs, 0); 956 #elif defined(__NetBSD__) 957 extern struct vnodeopv_desc ntfs_vnodeop_opv_desc; 958 959 struct vnodeopv_desc *ntfs_vnodeopv_descs[] = { 960 &ntfs_vnodeop_opv_desc, 961 NULL, 962 }; 963 964 struct vfsops ntfs_vfsops = { 965 MOUNT_NTFS, 966 ntfs_mount, 967 ntfs_start, 968 ntfs_unmount, 969 ntfs_root, 970 ntfs_quotactl, 971 ntfs_statfs, 972 ntfs_sync, 973 ntfs_vget, 974 ntfs_fhtovp, 975 ntfs_vptofh, 976 ntfs_init, 977 ntfs_sysctl, 978 ntfs_mountroot, 979 ntfs_checkexp, 980 ntfs_vnodeopv_descs, 981 }; 982 #else /* !NetBSD && !FreeBSD */ 983 static struct vfsops ntfs_vfsops = { 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 }; 996 VFS_SET(ntfs_vfsops, ntfs, MOUNT_NTFS, 0); 997 #endif 998 999 1000