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 1.34 2006/04/09 17:56:48 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 <machine/inttypes.h> 50 51 #include <vm/vm.h> 52 #include <vm/vm_param.h> 53 #if defined(__NetBSD__) 54 #include <vm/vm_prot.h> 55 #endif 56 #include <vm/vm_page.h> 57 #include <vm/vm_object.h> 58 #include <vm/vm_extern.h> 59 #include <vm/vm_zone.h> 60 61 #if defined(__NetBSD__) 62 #include <miscfs/specfs/specdev.h> 63 #endif 64 65 /*#define NTFS_DEBUG 1*/ 66 #include "ntfs.h" 67 #include "ntfs_inode.h" 68 #include "ntfs_subr.h" 69 #include "ntfs_vfsops.h" 70 #include "ntfs_ihash.h" 71 #include "ntfsmount.h" 72 73 extern struct vnodeopv_entry_desc ntfs_vnodeop_entries[]; 74 75 #if defined(__DragonFly__) 76 MALLOC_DEFINE(M_NTFSMNT, "NTFS mount", "NTFS mount structure"); 77 MALLOC_DEFINE(M_NTFSNTNODE,"NTFS ntnode", "NTFS ntnode information"); 78 MALLOC_DEFINE(M_NTFSFNODE,"NTFS fnode", "NTFS fnode information"); 79 MALLOC_DEFINE(M_NTFSDIR,"NTFS dir", "NTFS dir buffer"); 80 #endif 81 82 static int ntfs_root (struct mount *, struct vnode **); 83 static int ntfs_statfs (struct mount *, struct statfs *, 84 struct thread *); 85 static int ntfs_unmount (struct mount *, int, struct thread *); 86 static int ntfs_vget (struct mount *mp, ino_t ino, 87 struct vnode **vpp); 88 static int ntfs_mountfs (struct vnode *, struct mount *, 89 struct ntfs_args *, struct thread *); 90 static int ntfs_vptofh (struct vnode *, struct fid *); 91 static int ntfs_fhtovp (struct mount *, struct fid *, 92 struct vnode **); 93 94 #if !defined (__DragonFly__) 95 static int ntfs_quotactl (struct mount *, int, uid_t, caddr_t, 96 struct thread *); 97 static int ntfs_start (struct mount *, int, struct thread *); 98 static int ntfs_sync (struct mount *, int, struct ucred *, 99 struct thread *); 100 #endif 101 102 #if defined(__DragonFly__) 103 struct sockaddr; 104 static int ntfs_mount (struct mount *, char *, caddr_t, struct thread *); 105 static int ntfs_init (struct vfsconf *); 106 static int ntfs_checkexp (struct mount *, struct sockaddr *, 107 int *, struct ucred **); 108 #elif defined(__NetBSD__) 109 static int ntfs_mount (struct mount *, const char *, void *, 110 struct nameidata *, struct thread *); 111 static void ntfs_init (void); 112 static int ntfs_mountroot (void); 113 static int ntfs_sysctl (int *, u_int, void *, size_t *, void *, 114 size_t, struct thread *); 115 static int ntfs_checkexp (struct mount *, struct mbuf *, 116 int *, struct ucred **); 117 #endif 118 119 /* 120 * Verify a remote client has export rights and return these rights via. 121 * exflagsp and credanonp. 122 */ 123 static int 124 ntfs_checkexp(struct mount *mp, 125 #if defined(__DragonFly__) 126 struct sockaddr *nam, 127 #else /* defined(__NetBSD__) */ 128 struct mbuf *nam, 129 #endif 130 int *exflagsp, struct ucred **credanonp) 131 { 132 struct netcred *np; 133 struct ntfsmount *ntm = VFSTONTFS(mp); 134 135 /* 136 * Get the export permission structure for this <mp, client> tuple. 137 */ 138 np = vfs_export_lookup(mp, &ntm->ntm_export, nam); 139 if (np == NULL) 140 return (EACCES); 141 142 *exflagsp = np->netc_exflags; 143 *credanonp = &np->netc_anon; 144 return (0); 145 } 146 147 #if defined(__NetBSD__) 148 /*ARGSUSED*/ 149 static int 150 ntfs_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp, 151 size_t newlen, struct thread *td) 152 { 153 return (EINVAL); 154 } 155 156 static int 157 ntfs_mountroot(void) 158 { 159 struct mount *mp; 160 struct vnode *rootvp; 161 struct thread *td = curthread; /* XXX */ 162 struct ntfs_args args; 163 lwkt_tokref ilock; 164 int error; 165 166 if (root_device->dv_class != DV_DISK) 167 return (ENODEV); 168 169 /* 170 * Get vnodes for rootdev. 171 */ 172 if (bdevvp(rootdev, &rootvp)) 173 panic("ntfs_mountroot: can't setup rootvp"); 174 175 if ((error = vfs_rootmountalloc(MOUNT_NTFS, "root_device", &mp))) { 176 vrele(rootvp); 177 return (error); 178 } 179 180 args.flag = 0; 181 args.uid = 0; 182 args.gid = 0; 183 args.mode = 0777; 184 185 if ((error = ntfs_mountfs(rootvp, mp, &args, td)) != 0) { 186 mp->mnt_op->vfs_refcount--; 187 vfs_unbusy(mp); 188 free(mp, M_MOUNT); 189 vrele(rootvp); 190 return (error); 191 } 192 mountlist_insert(mp, MNTINS_LAST); 193 (void)ntfs_statfs(mp, &mp->mnt_stat, td); 194 vfs_unbusy(mp); 195 return (0); 196 } 197 198 static void 199 ntfs_init(void) 200 { 201 ntfs_nthashinit(); 202 ntfs_toupper_init(); 203 } 204 205 #elif defined(__DragonFly__) 206 207 static int 208 ntfs_init(struct vfsconf *vcp) 209 { 210 ntfs_nthashinit(); 211 ntfs_toupper_init(); 212 return 0; 213 } 214 215 #endif /* NetBSD */ 216 217 static int 218 ntfs_mount(struct mount *mp, 219 #if defined(__DragonFly__) 220 char *path, caddr_t data, 221 #else 222 const char *path, void *data, 223 #endif 224 struct thread *td) 225 { 226 size_t size; 227 int error; 228 struct vnode *devvp; 229 struct ntfs_args args; 230 struct nlookupdata nd; 231 struct vnode *rootvp; 232 233 error = 0; 234 #ifdef __DragonFly__ 235 /* 236 * Use NULL path to flag a root mount 237 */ 238 if( path == NULL) { 239 /* 240 *** 241 * Mounting root file system 242 *** 243 */ 244 245 /* Get vnode for root device*/ 246 if( bdevvp( rootdev, &rootvp)) 247 panic("ffs_mountroot: can't setup bdevvp for root"); 248 249 /* 250 * FS specific handling 251 */ 252 mp->mnt_flag |= MNT_RDONLY; /* XXX globally applicable?*/ 253 254 /* 255 * Attempt mount 256 */ 257 if( ( error = ntfs_mountfs(rootvp, mp, &args, td)) != 0) { 258 /* fs specific cleanup (if any)*/ 259 goto error_1; 260 } 261 262 goto dostatfs; /* success*/ 263 264 } 265 #endif /* FreeBSD */ 266 267 /* 268 *** 269 * Mounting non-root file system or updating a file system 270 *** 271 */ 272 273 /* copy in user arguments*/ 274 error = copyin(data, (caddr_t)&args, sizeof (struct ntfs_args)); 275 if (error) 276 goto error_1; /* can't get arguments*/ 277 278 /* 279 * If updating, check whether changing from read-only to 280 * read/write; if there is no device name, that's all we do. 281 */ 282 if (mp->mnt_flag & MNT_UPDATE) { 283 /* if not updating name...*/ 284 if (args.fspec == 0) { 285 /* 286 * Process export requests. Jumping to "success" 287 * will return the vfs_export() error code. 288 */ 289 struct ntfsmount *ntm = VFSTONTFS(mp); 290 error = vfs_export(mp, &ntm->ntm_export, &args.export); 291 goto success; 292 } 293 294 printf("ntfs_mount(): MNT_UPDATE not supported\n"); 295 error = EINVAL; 296 goto error_1; 297 } 298 299 /* 300 * Not an update, or updating the name: look up the name 301 * and verify that it refers to a sensible block device. 302 */ 303 devvp = NULL; 304 error = nlookup_init(&nd, args.fspec, UIO_USERSPACE, NLC_FOLLOW); 305 if (error == 0) 306 error = nlookup(&nd); 307 if (error == 0) 308 error = cache_vref(nd.nl_ncp, nd.nl_cred, &devvp); 309 nlookup_done(&nd); 310 if (error) 311 goto error_1; 312 313 #if defined(__DragonFly__) 314 if (!vn_isdisk(devvp, &error)) 315 goto error_2; 316 #else 317 if (devvp->v_type != VBLK) { 318 error = ENOTBLK; 319 goto error_2; 320 } 321 if (umajor(devvp->v_udev) >= nblkdev) { 322 error = ENXIO; 323 goto error_2; 324 } 325 #endif 326 if (mp->mnt_flag & MNT_UPDATE) { 327 #if 0 328 /* 329 ******************** 330 * UPDATE 331 ******************** 332 */ 333 334 if (devvp != ntmp->um_devvp) 335 error = EINVAL; /* needs translation */ 336 else 337 vrele(devvp); 338 /* 339 * Update device name only on success 340 */ 341 if( !error) { 342 /* Save "mounted from" info for mount point (NULL pad)*/ 343 copyinstr( args.fspec, 344 mp->mnt_stat.f_mntfromname, 345 MNAMELEN - 1, 346 &size); 347 bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size); 348 } 349 #endif 350 } else { 351 /* 352 ******************** 353 * NEW MOUNT 354 ******************** 355 */ 356 357 /* Save "mounted from" info for mount point (NULL pad)*/ 358 copyinstr( args.fspec, /* device name*/ 359 mp->mnt_stat.f_mntfromname, /* save area*/ 360 MNAMELEN - 1, /* max size*/ 361 &size); /* real size*/ 362 bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size); 363 364 error = ntfs_mountfs(devvp, mp, &args, td); 365 } 366 if (error) { 367 goto error_2; 368 } 369 370 #ifdef __DragonFly__ 371 dostatfs: 372 #endif 373 /* 374 * Initialize FS stat information in mount struct; uses 375 * mp->mnt_stat.f_mntfromname. 376 * 377 * This code is common to root and non-root mounts 378 */ 379 (void)VFS_STATFS(mp, &mp->mnt_stat, td); 380 381 goto success; 382 383 384 error_2: /* error with devvp held*/ 385 386 /* release devvp before failing*/ 387 vrele(devvp); 388 389 error_1: /* no state to back out*/ 390 391 success: 392 return(error); 393 } 394 395 /* 396 * Common code for mount and mountroot 397 */ 398 int 399 ntfs_mountfs(struct vnode *devvp, struct mount *mp, struct ntfs_args *argsp, 400 struct thread *td) 401 { 402 struct buf *bp; 403 struct ntfsmount *ntmp; 404 dev_t dev; 405 int error, ronly, ncount, i; 406 struct vnode *vp; 407 struct ucred *cred; 408 409 KKASSERT(td->td_proc); 410 cred = td->td_proc->p_ucred; 411 412 /* 413 * Disallow multiple mounts of the same device. 414 * Disallow mounting of a device that is currently in use 415 * (except for root, which might share swap device for miniroot). 416 * Flush out any old buffers remaining from a previous use. 417 */ 418 error = vfs_mountedon(devvp); 419 if (error) 420 return (error); 421 ncount = count_udev(devvp->v_udev); 422 #if defined(__DragonFly__) 423 if (devvp->v_object) 424 ncount -= 1; 425 #endif 426 if (ncount > 1) 427 return (EBUSY); 428 #if defined(__DragonFly__) 429 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, td); 430 error = vinvalbuf(devvp, V_SAVE, td, 0, 0); 431 VOP__UNLOCK(devvp, 0, td); 432 #else 433 error = vinvalbuf(devvp, V_SAVE, td, 0, 0); 434 #endif 435 if (error) 436 return (error); 437 438 ronly = (mp->mnt_flag & MNT_RDONLY) != 0; 439 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, td); 440 error = VOP_OPEN(devvp, ronly ? FREAD : FREAD|FWRITE, FSCRED, NULL, td); 441 VOP__UNLOCK(devvp, 0, td); 442 if (error) 443 return (error); 444 dev = devvp->v_rdev; 445 446 bp = NULL; 447 448 error = bread(devvp, ntfs_bntodoff(BBLOCK), BBSIZE, &bp); 449 if (error) 450 goto out; 451 ntmp = malloc( sizeof *ntmp, M_NTFSMNT, M_WAITOK ); 452 bzero( ntmp, sizeof *ntmp ); 453 bcopy( bp->b_data, &ntmp->ntm_bootfile, sizeof(struct bootfile) ); 454 brelse( bp ); 455 bp = NULL; 456 457 if (strncmp(ntmp->ntm_bootfile.bf_sysid, NTFS_BBID, NTFS_BBIDLEN)) { 458 error = EINVAL; 459 dprintf(("ntfs_mountfs: invalid boot block\n")); 460 goto out; 461 } 462 463 { 464 int8_t cpr = ntmp->ntm_mftrecsz; 465 if( cpr > 0 ) 466 ntmp->ntm_bpmftrec = ntmp->ntm_spc * cpr; 467 else 468 ntmp->ntm_bpmftrec = (1 << (-cpr)) / ntmp->ntm_bps; 469 } 470 dprintf(("ntfs_mountfs(): bps: %d, spc: %d, media: %x, mftrecsz: %d (%d sects)\n", 471 ntmp->ntm_bps,ntmp->ntm_spc,ntmp->ntm_bootfile.bf_media, 472 ntmp->ntm_mftrecsz,ntmp->ntm_bpmftrec)); 473 dprintf(("ntfs_mountfs(): mftcn: 0x%x|0x%x\n", 474 (u_int32_t)ntmp->ntm_mftcn,(u_int32_t)ntmp->ntm_mftmirrcn)); 475 476 ntmp->ntm_mountp = mp; 477 ntmp->ntm_dev = dev; 478 ntmp->ntm_devvp = devvp; 479 ntmp->ntm_uid = argsp->uid; 480 ntmp->ntm_gid = argsp->gid; 481 ntmp->ntm_mode = argsp->mode; 482 ntmp->ntm_flag = argsp->flag; 483 484 /* Copy in the 8-bit to Unicode conversion table */ 485 if (argsp->flag & NTFSMNT_U2WTABLE) { 486 ntfs_82u_init(ntmp, argsp->u2w); 487 } else { 488 ntfs_82u_init(ntmp, NULL); 489 } 490 491 /* Initialize Unicode to 8-bit table from 8toU table */ 492 ntfs_u28_init(ntmp, ntmp->ntm_82u); 493 494 mp->mnt_data = (qaddr_t)ntmp; 495 496 dprintf(("ntfs_mountfs(): case-%s,%s uid: %d, gid: %d, mode: %o\n", 497 (ntmp->ntm_flag & NTFS_MFLAG_CASEINS)?"insens.":"sens.", 498 (ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES)?" allnames,":"", 499 ntmp->ntm_uid, ntmp->ntm_gid, ntmp->ntm_mode)); 500 501 vfs_add_vnodeops(mp, &mp->mnt_vn_norm_ops, 502 ntfs_vnodeop_entries, 0); 503 504 /* 505 * We read in some system nodes to do not allow 506 * reclaim them and to have everytime access to them. 507 */ 508 { 509 int pi[3] = { NTFS_MFTINO, NTFS_ROOTINO, NTFS_BITMAPINO }; 510 for (i=0; i<3; i++) { 511 error = VFS_VGET(mp, pi[i], &(ntmp->ntm_sysvn[pi[i]])); 512 if(error) 513 goto out1; 514 ntmp->ntm_sysvn[pi[i]]->v_flag |= VSYSTEM; 515 vref(ntmp->ntm_sysvn[pi[i]]); 516 vput(ntmp->ntm_sysvn[pi[i]]); 517 } 518 } 519 520 /* read the Unicode lowercase --> uppercase translation table, 521 * if necessary */ 522 if ((error = ntfs_toupper_use(mp, ntmp))) 523 goto out1; 524 525 /* 526 * Scan $BitMap and count free clusters 527 */ 528 error = ntfs_calccfree(ntmp, &ntmp->ntm_cfree); 529 if(error) 530 goto out1; 531 532 /* 533 * Read and translate to internal format attribute 534 * definition file. 535 */ 536 { 537 int num,j; 538 struct attrdef ad; 539 540 /* Open $AttrDef */ 541 error = VFS_VGET(mp, NTFS_ATTRDEFINO, &vp ); 542 if(error) 543 goto out1; 544 545 /* Count valid entries */ 546 for(num=0;;num++) { 547 error = ntfs_readattr(ntmp, VTONT(vp), 548 NTFS_A_DATA, NULL, 549 num * sizeof(ad), sizeof(ad), 550 &ad, NULL); 551 if (error) 552 goto out1; 553 if (ad.ad_name[0] == 0) 554 break; 555 } 556 557 /* Alloc memory for attribute definitions */ 558 MALLOC(ntmp->ntm_ad, struct ntvattrdef *, 559 num * sizeof(struct ntvattrdef), 560 M_NTFSMNT, M_WAITOK); 561 562 ntmp->ntm_adnum = num; 563 564 /* Read them and translate */ 565 for(i=0;i<num;i++){ 566 error = ntfs_readattr(ntmp, VTONT(vp), 567 NTFS_A_DATA, NULL, 568 i * sizeof(ad), sizeof(ad), 569 &ad, NULL); 570 if (error) 571 goto out1; 572 j = 0; 573 do { 574 ntmp->ntm_ad[i].ad_name[j] = ad.ad_name[j]; 575 } while(ad.ad_name[j++]); 576 ntmp->ntm_ad[i].ad_namelen = j - 1; 577 ntmp->ntm_ad[i].ad_type = ad.ad_type; 578 } 579 580 vput(vp); 581 } 582 583 #if defined(__DragonFly__) 584 mp->mnt_stat.f_fsid.val[0] = dev2udev(dev); 585 mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum; 586 #else 587 mp->mnt_stat.f_fsid.val[0] = dev; 588 mp->mnt_stat.f_fsid.val[1] = makefstype(MOUNT_NTFS); 589 #endif 590 mp->mnt_maxsymlinklen = 0; 591 mp->mnt_flag |= MNT_LOCAL; 592 dev->si_mountpoint = mp; 593 594 return (0); 595 596 out1: 597 for(i=0;i<NTFS_SYSNODESNUM;i++) 598 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 599 600 if (vflush(mp, 0, 0)) 601 dprintf(("ntfs_mountfs: vflush failed\n")); 602 603 out: 604 dev->si_mountpoint = NULL; 605 if (bp) 606 brelse(bp); 607 608 #if defined __NetBSD__ 609 /* lock the device vnode before calling VOP_CLOSE() */ 610 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, td); 611 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, td); 612 VOP__UNLOCK(devvp, 0, td); 613 #else 614 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, td); 615 #endif 616 617 return (error); 618 } 619 620 #if !defined(__DragonFly__) 621 static int 622 ntfs_start(struct mount *mp, int flags, struct thread *td) 623 { 624 return (0); 625 } 626 #endif 627 628 static int 629 ntfs_unmount(struct mount *mp, int mntflags, struct thread *td) 630 { 631 struct ntfsmount *ntmp; 632 int error, ronly, flags, i; 633 634 dprintf(("ntfs_unmount: unmounting...\n")); 635 ntmp = VFSTONTFS(mp); 636 637 ronly = (mp->mnt_flag & MNT_RDONLY) != 0; 638 flags = 0; 639 if(mntflags & MNT_FORCE) 640 flags |= FORCECLOSE; 641 642 dprintf(("ntfs_unmount: vflushing...\n")); 643 error = vflush(mp, 0, flags | SKIPSYSTEM); 644 if (error) { 645 printf("ntfs_unmount: vflush failed: %d\n",error); 646 return (error); 647 } 648 649 /* Check if only system vnodes are rest */ 650 for(i=0;i<NTFS_SYSNODESNUM;i++) 651 if((ntmp->ntm_sysvn[i]) && 652 (ntmp->ntm_sysvn[i]->v_usecount > 1)) return (EBUSY); 653 654 /* Dereference all system vnodes */ 655 for(i=0;i<NTFS_SYSNODESNUM;i++) 656 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 657 658 /* vflush system vnodes */ 659 error = vflush(mp, 0, flags); 660 if (error) 661 printf("ntfs_unmount: vflush failed(sysnodes): %d\n",error); 662 663 /* Check if the type of device node isn't VBAD before 664 * touching v_specinfo. If the device vnode is revoked, the 665 * field is NULL and touching it causes null pointer derefercence. 666 */ 667 if (ntmp->ntm_devvp->v_type != VBAD) 668 ntmp->ntm_devvp->v_rdev->si_mountpoint = NULL; 669 670 vinvalbuf(ntmp->ntm_devvp, V_SAVE, td, 0, 0); 671 672 #if defined(__NetBSD__) 673 /* lock the device vnode before calling VOP_CLOSE() */ 674 VOP_LOCK(ntmp->ntm_devvp, LK_EXCLUSIVE | LK_RETRY); 675 error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE, td); 676 VOP__UNLOCK(ntmp->ntm_devvp, 0, td); 677 #else 678 error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE, td); 679 #endif 680 681 vrele(ntmp->ntm_devvp); 682 683 /* free the toupper table, if this has been last mounted ntfs volume */ 684 ntfs_toupper_unuse(); 685 686 dprintf(("ntfs_umount: freeing memory...\n")); 687 ntfs_u28_uninit(ntmp); 688 ntfs_82u_uninit(ntmp); 689 mp->mnt_data = (qaddr_t)0; 690 mp->mnt_flag &= ~MNT_LOCAL; 691 FREE(ntmp->ntm_ad, M_NTFSMNT); 692 FREE(ntmp, M_NTFSMNT); 693 return (error); 694 } 695 696 static int 697 ntfs_root(struct mount *mp, struct vnode **vpp) 698 { 699 struct vnode *nvp; 700 int error = 0; 701 702 dprintf(("ntfs_root(): sysvn: %p\n", 703 VFSTONTFS(mp)->ntm_sysvn[NTFS_ROOTINO])); 704 error = VFS_VGET(mp, (ino_t)NTFS_ROOTINO, &nvp); 705 if(error) { 706 printf("ntfs_root: VFS_VGET failed: %d\n",error); 707 return (error); 708 } 709 710 *vpp = nvp; 711 return (0); 712 } 713 714 #if !defined(__DragonFly__) 715 static int 716 ntfs_quotactl(struct mount *mp, int cmds, uid_t uid, caddr_t arg, 717 struct thread *td) 718 { 719 printf("\nntfs_quotactl():\n"); 720 return EOPNOTSUPP; 721 } 722 #endif 723 724 int 725 ntfs_calccfree(struct ntfsmount *ntmp, cn_t *cfreep) 726 { 727 struct vnode *vp; 728 u_int8_t *tmp; 729 int j, error; 730 long cfree = 0; 731 size_t bmsize, i; 732 733 vp = ntmp->ntm_sysvn[NTFS_BITMAPINO]; 734 735 bmsize = VTOF(vp)->f_size; 736 737 MALLOC(tmp, u_int8_t *, bmsize, M_TEMP, M_WAITOK); 738 739 error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL, 740 0, bmsize, tmp, NULL); 741 if (error) 742 goto out; 743 744 for(i=0;i<bmsize;i++) 745 for(j=0;j<8;j++) 746 if(~tmp[i] & (1 << j)) cfree++; 747 *cfreep = cfree; 748 749 out: 750 FREE(tmp, M_TEMP); 751 return(error); 752 } 753 754 static int 755 ntfs_statfs(struct mount *mp, struct statfs *sbp, struct thread *td) 756 { 757 struct ntfsmount *ntmp = VFSTONTFS(mp); 758 u_int64_t mftsize,mftallocated; 759 760 dprintf(("ntfs_statfs():\n")); 761 762 mftsize = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_size; 763 mftallocated = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_allocated; 764 765 #if defined(__DragonFly__) 766 sbp->f_type = mp->mnt_vfc->vfc_typenum; 767 #elif defined(__NetBSD__) 768 sbp->f_type = 0; 769 #else 770 sbp->f_type = MOUNT_NTFS; 771 #endif 772 sbp->f_bsize = ntmp->ntm_bps; 773 sbp->f_iosize = ntmp->ntm_bps * ntmp->ntm_spc; 774 sbp->f_blocks = ntmp->ntm_bootfile.bf_spv; 775 sbp->f_bfree = sbp->f_bavail = ntfs_cntobn(ntmp->ntm_cfree); 776 sbp->f_ffree = sbp->f_bfree / ntmp->ntm_bpmftrec; 777 sbp->f_files = mftallocated / ntfs_bntob(ntmp->ntm_bpmftrec) + 778 sbp->f_ffree; 779 if (sbp != &mp->mnt_stat) { 780 bcopy((caddr_t)mp->mnt_stat.f_mntfromname, 781 (caddr_t)&sbp->f_mntfromname[0], MNAMELEN); 782 } 783 sbp->f_flags = mp->mnt_flag; 784 #ifdef __NetBSD__ 785 strncpy(sbp->f_fstypename, mp->mnt_op->vfs_name, MFSNAMELEN); 786 #endif 787 788 return (0); 789 } 790 791 #if !defined(__DragonFly__) 792 static int 793 ntfs_sync(struct mount *mp, int waitfor, struct ucred *cred, struct thread *td) 794 { 795 /*dprintf(("ntfs_sync():\n"));*/ 796 return (0); 797 } 798 #endif 799 800 /*ARGSUSED*/ 801 static int 802 ntfs_fhtovp(struct mount *mp, struct fid *fhp, struct vnode **vpp) 803 { 804 struct vnode *nvp; 805 struct ntfid *ntfhp = (struct ntfid *)fhp; 806 int error; 807 808 ddprintf(("ntfs_fhtovp(): %d\n", ntfhp->ntfid_ino)); 809 810 if ((error = VFS_VGET(mp, ntfhp->ntfid_ino, &nvp)) != 0) { 811 *vpp = NULLVP; 812 return (error); 813 } 814 /* XXX as unlink/rmdir/mkdir/creat are not currently possible 815 * with NTFS, we don't need to check anything else for now */ 816 *vpp = nvp; 817 818 return (0); 819 } 820 821 static int 822 ntfs_vptofh(struct vnode *vp, struct fid *fhp) 823 { 824 struct ntnode *ntp; 825 struct ntfid *ntfhp; 826 827 ddprintf(("ntfs_fhtovp(): %p\n", vp)); 828 829 ntp = VTONT(vp); 830 ntfhp = (struct ntfid *)fhp; 831 ntfhp->ntfid_len = sizeof(struct ntfid); 832 ntfhp->ntfid_ino = ntp->i_number; 833 /* ntfhp->ntfid_gen = ntp->i_gen; */ 834 return (0); 835 } 836 837 int 838 ntfs_vgetex(struct mount *mp, ino_t ino, u_int32_t attrtype, char *attrname, 839 u_long lkflags, u_long flags, struct thread *td, 840 struct vnode **vpp) 841 { 842 int error; 843 struct ntfsmount *ntmp; 844 struct ntnode *ip; 845 struct fnode *fp; 846 struct vnode *vp; 847 enum vtype f_type; 848 849 dprintf(("ntfs_vgetex: ino: %d, attr: 0x%x:%s, lkf: 0x%lx, f: 0x%lx\n", 850 ino, attrtype, attrname?attrname:"", (u_long)lkflags, 851 (u_long)flags )); 852 853 ntmp = VFSTONTFS(mp); 854 *vpp = NULL; 855 856 /* Get ntnode */ 857 error = ntfs_ntlookup(ntmp, ino, &ip); 858 if (error) { 859 printf("ntfs_vget: ntfs_ntget failed\n"); 860 return (error); 861 } 862 863 /* It may be not initialized fully, so force load it */ 864 if (!(flags & VG_DONTLOADIN) && !(ip->i_flag & IN_LOADED)) { 865 error = ntfs_loadntnode(ntmp, ip); 866 if(error) { 867 printf("ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO: %"PRId64"\n", 868 ip->i_number); 869 ntfs_ntput(ip); 870 return (error); 871 } 872 } 873 874 error = ntfs_fget(ntmp, ip, attrtype, attrname, &fp); 875 if (error) { 876 printf("ntfs_vget: ntfs_fget failed\n"); 877 ntfs_ntput(ip); 878 return (error); 879 } 880 881 f_type = VNON; 882 if (!(flags & VG_DONTVALIDFN) && !(fp->f_flag & FN_VALID)) { 883 if ((ip->i_frflag & NTFS_FRFLAG_DIR) && 884 (fp->f_attrtype == NTFS_A_DATA && fp->f_attrname == NULL)) { 885 f_type = VDIR; 886 } else if (flags & VG_EXT) { 887 f_type = VNON; 888 fp->f_size = fp->f_allocated = 0; 889 } else { 890 f_type = VREG; 891 892 error = ntfs_filesize(ntmp, fp, 893 &fp->f_size, &fp->f_allocated); 894 if (error) { 895 ntfs_ntput(ip); 896 return (error); 897 } 898 } 899 900 fp->f_flag |= FN_VALID; 901 } 902 903 if (FTOV(fp)) { 904 VGET(FTOV(fp), lkflags, td); 905 *vpp = FTOV(fp); 906 ntfs_ntput(ip); 907 return (0); 908 } 909 910 error = getnewvnode(VT_NTFS, ntmp->ntm_mountp, &vp, VLKTIMEOUT, 0); 911 if(error) { 912 ntfs_frele(fp); 913 ntfs_ntput(ip); 914 return (error); 915 } 916 dprintf(("ntfs_vget: vnode: %p for ntnode: %d\n", vp,ino)); 917 918 fp->f_vp = vp; 919 vp->v_data = fp; 920 vp->v_type = f_type; 921 922 if (ino == NTFS_ROOTINO) 923 vp->v_flag |= VROOT; 924 925 /* 926 * Normal files use the buffer cache 927 */ 928 if (f_type == VREG) 929 vinitvmio(vp, fp->f_size); 930 931 ntfs_ntput(ip); 932 933 KKASSERT(lkflags & LK_TYPE_MASK); 934 KKASSERT((lkflags & LK_INTERLOCK) == 0); 935 /* XXX leave vnode locked exclusively from getnewvnode */ 936 *vpp = vp; 937 return (0); 938 939 } 940 941 static int 942 ntfs_vget(struct mount *mp, ino_t ino, struct vnode **vpp) 943 { 944 return ntfs_vgetex(mp, ino, NTFS_A_DATA, NULL, 945 LK_EXCLUSIVE | LK_RETRY, 0, curthread, vpp); 946 } 947 948 #if defined(__DragonFly__) 949 static struct vfsops ntfs_vfsops = { 950 .vfs_mount = ntfs_mount, 951 .vfs_unmount = ntfs_unmount, 952 .vfs_root = ntfs_root, 953 .vfs_statfs = ntfs_statfs, 954 .vfs_sync = vfs_stdsync, 955 .vfs_vget = ntfs_vget, 956 .vfs_fhtovp = ntfs_fhtovp, 957 .vfs_checkexp = ntfs_checkexp, 958 .vfs_vptofh = ntfs_vptofh, 959 .vfs_init = ntfs_init, 960 .vfs_uninit = ntfs_nthash_uninit /* see ntfs_ihash.c */ 961 }; 962 VFS_SET(ntfs_vfsops, ntfs, 0); 963 #elif defined(__NetBSD__) 964 extern struct vnodeopv_desc ntfs_vnodeop_opv_desc; 965 966 struct vnodeopv_desc *ntfs_vnodeopv_descs[] = { 967 &ntfs_vnodeop_opv_desc, 968 NULL, 969 }; 970 971 struct vfsops ntfs_vfsops = { 972 MOUNT_NTFS, 973 ntfs_mount, 974 ntfs_start, 975 ntfs_unmount, 976 ntfs_root, 977 ntfs_quotactl, 978 ntfs_statfs, 979 ntfs_sync, 980 ntfs_vget, 981 ntfs_fhtovp, 982 ntfs_vptofh, 983 ntfs_init, 984 ntfs_sysctl, 985 ntfs_mountroot, 986 ntfs_checkexp, 987 ntfs_vnodeopv_descs, 988 }; 989 #else /* !NetBSD && !FreeBSD */ 990 static struct vfsops ntfs_vfsops = { 991 ntfs_mount, 992 ntfs_start, 993 ntfs_unmount, 994 ntfs_root, 995 ntfs_quotactl, 996 ntfs_statfs, 997 ntfs_sync, 998 ntfs_vget, 999 ntfs_fhtovp, 1000 ntfs_vptofh, 1001 ntfs_init, 1002 }; 1003 VFS_SET(ntfs_vfsops, ntfs, MOUNT_NTFS, 0); 1004 #endif 1005 1006 1007