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 1.21 2004/08/28 19:02:21 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/namei.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, 103 struct nameidata *, struct thread *); 104 static int ntfs_init (struct vfsconf *); 105 static int ntfs_checkexp (struct mount *, struct sockaddr *, 106 int *, struct ucred **); 107 #elif defined(__NetBSD__) 108 static int ntfs_mount (struct mount *, const char *, void *, 109 struct nameidata *, struct thread *); 110 static void ntfs_init (void); 111 static int ntfs_mountroot (void); 112 static int ntfs_sysctl (int *, u_int, void *, size_t *, void *, 113 size_t, struct thread *); 114 static int ntfs_checkexp (struct mount *, struct mbuf *, 115 int *, struct ucred **); 116 #endif 117 118 /* 119 * Verify a remote client has export rights and return these rights via. 120 * exflagsp and credanonp. 121 */ 122 static int 123 ntfs_checkexp(struct mount *mp, 124 #if defined(__DragonFly__) 125 struct sockaddr *nam, 126 #else /* defined(__NetBSD__) */ 127 struct mbuf *nam, 128 #endif 129 int *exflagsp, struct ucred **credanonp) 130 { 131 struct netcred *np; 132 struct ntfsmount *ntm = VFSTONTFS(mp); 133 134 /* 135 * Get the export permission structure for this <mp, client> tuple. 136 */ 137 np = vfs_export_lookup(mp, &ntm->ntm_export, nam); 138 if (np == NULL) 139 return (EACCES); 140 141 *exflagsp = np->netc_exflags; 142 *credanonp = &np->netc_anon; 143 return (0); 144 } 145 146 #if defined(__NetBSD__) 147 /*ARGSUSED*/ 148 static int 149 ntfs_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp, 150 size_t newlen, struct thread *td) 151 { 152 return (EINVAL); 153 } 154 155 static int 156 ntfs_mountroot(void) 157 { 158 struct mount *mp; 159 extern struct vnode *rootvp; 160 struct thread *td = curthread; /* XXX */ 161 struct ntfs_args args; 162 lwkt_tokref ilock; 163 int error; 164 165 if (root_device->dv_class != DV_DISK) 166 return (ENODEV); 167 168 /* 169 * Get vnodes for rootdev. 170 */ 171 if (bdevvp(rootdev, &rootvp)) 172 panic("ntfs_mountroot: can't setup rootvp"); 173 174 if ((error = vfs_rootmountalloc(MOUNT_NTFS, "root_device", &mp))) { 175 vrele(rootvp); 176 return (error); 177 } 178 179 args.flag = 0; 180 args.uid = 0; 181 args.gid = 0; 182 args.mode = 0777; 183 184 if ((error = ntfs_mountfs(rootvp, mp, &args, td)) != 0) { 185 mp->mnt_op->vfs_refcount--; 186 vfs_unbusy(mp); 187 free(mp, M_MOUNT); 188 vrele(rootvp); 189 return (error); 190 } 191 192 lwkt_gettoken(&ilock, &mountlist_token); 193 CIRCLEQ_INSERT_TAIL(&mountlist, mp, mnt_list); 194 lwkt_reltoken(&ilock); 195 (void)ntfs_statfs(mp, &mp->mnt_stat, td); 196 vfs_unbusy(mp); 197 return (0); 198 } 199 200 static void 201 ntfs_init(void) 202 { 203 ntfs_nthashinit(); 204 ntfs_toupper_init(); 205 } 206 207 #elif defined(__DragonFly__) 208 209 static int 210 ntfs_init(struct vfsconf *vcp) 211 { 212 ntfs_nthashinit(); 213 ntfs_toupper_init(); 214 return 0; 215 } 216 217 #endif /* NetBSD */ 218 219 static int 220 ntfs_mount(struct mount *mp, 221 #if defined(__DragonFly__) 222 char *path, caddr_t data, 223 #else 224 const char *path, void *data, 225 #endif 226 struct nameidata *ndp, struct thread *td) 227 { 228 size_t size; 229 int err = 0; 230 struct vnode *devvp; 231 struct ntfs_args args; 232 233 #ifdef __DragonFly__ 234 /* 235 * Use NULL path to flag a root mount 236 */ 237 if( path == NULL) { 238 /* 239 *** 240 * Mounting root file system 241 *** 242 */ 243 244 /* Get vnode for root device*/ 245 if( bdevvp( rootdev, &rootvp)) 246 panic("ffs_mountroot: can't setup bdevvp for root"); 247 248 /* 249 * FS specific handling 250 */ 251 mp->mnt_flag |= MNT_RDONLY; /* XXX globally applicable?*/ 252 253 /* 254 * Attempt mount 255 */ 256 if( ( err = ntfs_mountfs(rootvp, mp, &args, td)) != 0) { 257 /* fs specific cleanup (if any)*/ 258 goto error_1; 259 } 260 261 goto dostatfs; /* success*/ 262 263 } 264 #endif /* FreeBSD */ 265 266 /* 267 *** 268 * Mounting non-root file system or updating a file system 269 *** 270 */ 271 272 /* copy in user arguments*/ 273 err = copyin(data, (caddr_t)&args, sizeof (struct ntfs_args)); 274 if (err) 275 goto error_1; /* can't get arguments*/ 276 277 /* 278 * If updating, check whether changing from read-only to 279 * read/write; if there is no device name, that's all we do. 280 */ 281 if (mp->mnt_flag & MNT_UPDATE) { 282 /* if not updating name...*/ 283 if (args.fspec == 0) { 284 /* 285 * Process export requests. Jumping to "success" 286 * will return the vfs_export() error code. 287 */ 288 struct ntfsmount *ntm = VFSTONTFS(mp); 289 err = vfs_export(mp, &ntm->ntm_export, &args.export); 290 goto success; 291 } 292 293 printf("ntfs_mount(): MNT_UPDATE not supported\n"); 294 err = EINVAL; 295 goto error_1; 296 } 297 298 /* 299 * Not an update, or updating the name: look up the name 300 * and verify that it refers to a sensible block device. 301 */ 302 NDINIT(ndp, NAMEI_LOOKUP, CNP_FOLLOW, UIO_USERSPACE, args.fspec, td); 303 err = namei(ndp); 304 if (err) { 305 /* can't get devvp!*/ 306 goto error_1; 307 } 308 NDFREE(ndp, NDF_ONLY_PNBUF); 309 devvp = ndp->ni_vp; 310 311 #if defined(__DragonFly__) 312 if (!vn_isdisk(devvp, &err)) 313 goto error_2; 314 #else 315 if (devvp->v_type != VBLK) { 316 err = ENOTBLK; 317 goto error_2; 318 } 319 if (umajor(devvp->v_udev) >= nblkdev) { 320 err = 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 err = EINVAL; /* needs translation */ 334 else 335 vrele(devvp); 336 /* 337 * Update device name only on success 338 */ 339 if( !err) { 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 /* 356 * Since this is a new mount, we want the names for 357 * the device and the mount point copied in. If an 358 * error occurs, the mountpoint is discarded by the 359 * upper level code. 360 */ 361 /* Save "last mounted on" info for mount point (NULL pad)*/ 362 copyinstr( path, /* mount point*/ 363 mp->mnt_stat.f_mntonname, /* save area*/ 364 MNAMELEN - 1, /* max size*/ 365 &size); /* real size*/ 366 bzero( mp->mnt_stat.f_mntonname + size, MNAMELEN - size); 367 368 /* Save "mounted from" info for mount point (NULL pad)*/ 369 copyinstr( args.fspec, /* device name*/ 370 mp->mnt_stat.f_mntfromname, /* save area*/ 371 MNAMELEN - 1, /* max size*/ 372 &size); /* real size*/ 373 bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size); 374 375 err = ntfs_mountfs(devvp, mp, &args, td); 376 } 377 if (err) { 378 goto error_2; 379 } 380 381 #ifdef __DragonFly__ 382 dostatfs: 383 #endif 384 /* 385 * Initialize FS stat information in mount struct; uses both 386 * mp->mnt_stat.f_mntonname and mp->mnt_stat.f_mntfromname 387 * 388 * This code is common to root and non-root mounts 389 */ 390 (void)VFS_STATFS(mp, &mp->mnt_stat, td); 391 392 goto success; 393 394 395 error_2: /* error with devvp held*/ 396 397 /* release devvp before failing*/ 398 vrele(devvp); 399 400 error_1: /* no state to back out*/ 401 402 success: 403 return(err); 404 } 405 406 /* 407 * Common code for mount and mountroot 408 */ 409 int 410 ntfs_mountfs(struct vnode *devvp, struct mount *mp, struct ntfs_args *argsp, 411 struct thread *td) 412 { 413 struct buf *bp; 414 struct ntfsmount *ntmp; 415 dev_t dev; 416 int error, ronly, ncount, i; 417 struct vnode *vp; 418 struct ucred *cred; 419 420 KKASSERT(td->td_proc); 421 cred = td->td_proc->p_ucred; 422 423 /* 424 * Disallow multiple mounts of the same device. 425 * Disallow mounting of a device that is currently in use 426 * (except for root, which might share swap device for miniroot). 427 * Flush out any old buffers remaining from a previous use. 428 */ 429 error = vfs_mountedon(devvp); 430 if (error) 431 return (error); 432 ncount = count_udev(devvp->v_udev); 433 #if defined(__DragonFly__) 434 if (devvp->v_object) 435 ncount -= 1; 436 #endif 437 if (ncount > 1 && devvp != rootvp) 438 return (EBUSY); 439 #if defined(__DragonFly__) 440 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, td); 441 error = vinvalbuf(devvp, V_SAVE, td, 0, 0); 442 VOP__UNLOCK(devvp, 0, td); 443 #else 444 error = vinvalbuf(devvp, V_SAVE, td, 0, 0); 445 #endif 446 if (error) 447 return (error); 448 449 ronly = (mp->mnt_flag & MNT_RDONLY) != 0; 450 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, td); 451 error = VOP_OPEN(devvp, ronly ? FREAD : FREAD|FWRITE, FSCRED, td); 452 VOP__UNLOCK(devvp, 0, td); 453 if (error) 454 return (error); 455 dev = devvp->v_rdev; 456 457 bp = NULL; 458 459 error = bread(devvp, BBLOCK, BBSIZE, &bp); 460 if (error) 461 goto out; 462 ntmp = malloc( sizeof *ntmp, M_NTFSMNT, M_WAITOK ); 463 bzero( ntmp, sizeof *ntmp ); 464 bcopy( bp->b_data, &ntmp->ntm_bootfile, sizeof(struct bootfile) ); 465 brelse( bp ); 466 bp = NULL; 467 468 if (strncmp(ntmp->ntm_bootfile.bf_sysid, NTFS_BBID, NTFS_BBIDLEN)) { 469 error = EINVAL; 470 dprintf(("ntfs_mountfs: invalid boot block\n")); 471 goto out; 472 } 473 474 { 475 int8_t cpr = ntmp->ntm_mftrecsz; 476 if( cpr > 0 ) 477 ntmp->ntm_bpmftrec = ntmp->ntm_spc * cpr; 478 else 479 ntmp->ntm_bpmftrec = (1 << (-cpr)) / ntmp->ntm_bps; 480 } 481 dprintf(("ntfs_mountfs(): bps: %d, spc: %d, media: %x, mftrecsz: %d (%d sects)\n", 482 ntmp->ntm_bps,ntmp->ntm_spc,ntmp->ntm_bootfile.bf_media, 483 ntmp->ntm_mftrecsz,ntmp->ntm_bpmftrec)); 484 dprintf(("ntfs_mountfs(): mftcn: 0x%x|0x%x\n", 485 (u_int32_t)ntmp->ntm_mftcn,(u_int32_t)ntmp->ntm_mftmirrcn)); 486 487 ntmp->ntm_mountp = mp; 488 ntmp->ntm_dev = dev; 489 ntmp->ntm_devvp = devvp; 490 ntmp->ntm_uid = argsp->uid; 491 ntmp->ntm_gid = argsp->gid; 492 ntmp->ntm_mode = argsp->mode; 493 ntmp->ntm_flag = argsp->flag; 494 495 /* Copy in the 8-bit to Unicode conversion table */ 496 if (argsp->flag & NTFSMNT_U2WTABLE) { 497 ntfs_82u_init(ntmp, argsp->u2w); 498 } else { 499 ntfs_82u_init(ntmp, NULL); 500 } 501 502 /* Initialize Unicode to 8-bit table from 8toU table */ 503 ntfs_u28_init(ntmp, ntmp->ntm_82u); 504 505 mp->mnt_data = (qaddr_t)ntmp; 506 507 dprintf(("ntfs_mountfs(): case-%s,%s uid: %d, gid: %d, mode: %o\n", 508 (ntmp->ntm_flag & NTFS_MFLAG_CASEINS)?"insens.":"sens.", 509 (ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES)?" allnames,":"", 510 ntmp->ntm_uid, ntmp->ntm_gid, ntmp->ntm_mode)); 511 512 vfs_add_vnodeops(&mp->mnt_vn_ops, ntfs_vnodeop_entries); 513 514 /* 515 * We read in some system nodes to do not allow 516 * reclaim them and to have everytime access to them. 517 */ 518 { 519 int pi[3] = { NTFS_MFTINO, NTFS_ROOTINO, NTFS_BITMAPINO }; 520 for (i=0; i<3; i++) { 521 error = VFS_VGET(mp, pi[i], &(ntmp->ntm_sysvn[pi[i]])); 522 if(error) 523 goto out1; 524 ntmp->ntm_sysvn[pi[i]]->v_flag |= VSYSTEM; 525 vref(ntmp->ntm_sysvn[pi[i]]); 526 vput(ntmp->ntm_sysvn[pi[i]]); 527 } 528 } 529 530 /* read the Unicode lowercase --> uppercase translation table, 531 * if necessary */ 532 if ((error = ntfs_toupper_use(mp, ntmp))) 533 goto out1; 534 535 /* 536 * Scan $BitMap and count free clusters 537 */ 538 error = ntfs_calccfree(ntmp, &ntmp->ntm_cfree); 539 if(error) 540 goto out1; 541 542 /* 543 * Read and translate to internal format attribute 544 * definition file. 545 */ 546 { 547 int num,j; 548 struct attrdef ad; 549 550 /* Open $AttrDef */ 551 error = VFS_VGET(mp, NTFS_ATTRDEFINO, &vp ); 552 if(error) 553 goto out1; 554 555 /* Count valid entries */ 556 for(num=0;;num++) { 557 error = ntfs_readattr(ntmp, VTONT(vp), 558 NTFS_A_DATA, NULL, 559 num * sizeof(ad), sizeof(ad), 560 &ad, NULL); 561 if (error) 562 goto out1; 563 if (ad.ad_name[0] == 0) 564 break; 565 } 566 567 /* Alloc memory for attribute definitions */ 568 MALLOC(ntmp->ntm_ad, struct ntvattrdef *, 569 num * sizeof(struct ntvattrdef), 570 M_NTFSMNT, M_WAITOK); 571 572 ntmp->ntm_adnum = num; 573 574 /* Read them and translate */ 575 for(i=0;i<num;i++){ 576 error = ntfs_readattr(ntmp, VTONT(vp), 577 NTFS_A_DATA, NULL, 578 i * sizeof(ad), sizeof(ad), 579 &ad, NULL); 580 if (error) 581 goto out1; 582 j = 0; 583 do { 584 ntmp->ntm_ad[i].ad_name[j] = ad.ad_name[j]; 585 } while(ad.ad_name[j++]); 586 ntmp->ntm_ad[i].ad_namelen = j - 1; 587 ntmp->ntm_ad[i].ad_type = ad.ad_type; 588 } 589 590 vput(vp); 591 } 592 593 #if defined(__DragonFly__) 594 mp->mnt_stat.f_fsid.val[0] = dev2udev(dev); 595 mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum; 596 #else 597 mp->mnt_stat.f_fsid.val[0] = dev; 598 mp->mnt_stat.f_fsid.val[1] = makefstype(MOUNT_NTFS); 599 #endif 600 mp->mnt_maxsymlinklen = 0; 601 mp->mnt_flag |= MNT_LOCAL; 602 dev->si_mountpoint = mp; 603 604 return (0); 605 606 out1: 607 for(i=0;i<NTFS_SYSNODESNUM;i++) 608 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 609 610 if (vflush(mp, 0, 0)) 611 dprintf(("ntfs_mountfs: vflush failed\n")); 612 613 out: 614 dev->si_mountpoint = NULL; 615 if (bp) 616 brelse(bp); 617 618 #if defined __NetBSD__ 619 /* lock the device vnode before calling VOP_CLOSE() */ 620 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, td); 621 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, td); 622 VOP__UNLOCK(devvp, 0, td); 623 #else 624 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, td); 625 #endif 626 627 return (error); 628 } 629 630 #if !defined(__DragonFly__) 631 static int 632 ntfs_start(struct mount *mp, int flags, struct thread *td) 633 { 634 return (0); 635 } 636 #endif 637 638 static int 639 ntfs_unmount(struct mount *mp, int mntflags, struct thread *td) 640 { 641 struct ntfsmount *ntmp; 642 int error, ronly = 0, flags, i; 643 644 dprintf(("ntfs_unmount: unmounting...\n")); 645 ntmp = VFSTONTFS(mp); 646 647 flags = 0; 648 if(mntflags & MNT_FORCE) 649 flags |= FORCECLOSE; 650 651 dprintf(("ntfs_unmount: vflushing...\n")); 652 error = vflush(mp, 0, flags | SKIPSYSTEM); 653 if (error) { 654 printf("ntfs_unmount: vflush failed: %d\n",error); 655 return (error); 656 } 657 658 /* Check if only system vnodes are rest */ 659 for(i=0;i<NTFS_SYSNODESNUM;i++) 660 if((ntmp->ntm_sysvn[i]) && 661 (ntmp->ntm_sysvn[i]->v_usecount > 1)) return (EBUSY); 662 663 /* Dereference all system vnodes */ 664 for(i=0;i<NTFS_SYSNODESNUM;i++) 665 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 666 667 /* vflush system vnodes */ 668 error = vflush(mp, 0, flags); 669 if (error) 670 printf("ntfs_unmount: vflush failed(sysnodes): %d\n",error); 671 672 /* Check if the type of device node isn't VBAD before 673 * touching v_specinfo. If the device vnode is revoked, the 674 * field is NULL and touching it causes null pointer derefercence. 675 */ 676 if (ntmp->ntm_devvp->v_type != VBAD) 677 ntmp->ntm_devvp->v_rdev->si_mountpoint = NULL; 678 679 vinvalbuf(ntmp->ntm_devvp, V_SAVE, td, 0, 0); 680 681 #if defined(__NetBSD__) 682 /* lock the device vnode before calling VOP_CLOSE() */ 683 VOP_LOCK(ntmp->ntm_devvp, LK_EXCLUSIVE | LK_RETRY); 684 error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE, td); 685 VOP__UNLOCK(ntmp->ntm_devvp, 0, td); 686 #else 687 error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE, td); 688 #endif 689 690 vrele(ntmp->ntm_devvp); 691 692 /* free the toupper table, if this has been last mounted ntfs volume */ 693 ntfs_toupper_unuse(); 694 695 dprintf(("ntfs_umount: freeing memory...\n")); 696 ntfs_u28_uninit(ntmp); 697 ntfs_82u_uninit(ntmp); 698 mp->mnt_data = (qaddr_t)0; 699 mp->mnt_flag &= ~MNT_LOCAL; 700 FREE(ntmp->ntm_ad, M_NTFSMNT); 701 FREE(ntmp, M_NTFSMNT); 702 return (error); 703 } 704 705 static int 706 ntfs_root(struct mount *mp, struct vnode **vpp) 707 { 708 struct vnode *nvp; 709 int error = 0; 710 711 dprintf(("ntfs_root(): sysvn: %p\n", 712 VFSTONTFS(mp)->ntm_sysvn[NTFS_ROOTINO])); 713 error = VFS_VGET(mp, (ino_t)NTFS_ROOTINO, &nvp); 714 if(error) { 715 printf("ntfs_root: VFS_VGET failed: %d\n",error); 716 return (error); 717 } 718 719 *vpp = nvp; 720 return (0); 721 } 722 723 #if !defined(__DragonFly__) 724 static int 725 ntfs_quotactl(struct mount *mp, int cmds, uid_t uid, caddr_t arg, 726 struct thread *td) 727 { 728 printf("\nntfs_quotactl():\n"); 729 return EOPNOTSUPP; 730 } 731 #endif 732 733 int 734 ntfs_calccfree(struct ntfsmount *ntmp, cn_t *cfreep) 735 { 736 struct vnode *vp; 737 u_int8_t *tmp; 738 int j, error; 739 long cfree = 0; 740 size_t bmsize, i; 741 742 vp = ntmp->ntm_sysvn[NTFS_BITMAPINO]; 743 744 bmsize = VTOF(vp)->f_size; 745 746 MALLOC(tmp, u_int8_t *, bmsize, M_TEMP, M_WAITOK); 747 748 error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL, 749 0, bmsize, tmp, NULL); 750 if (error) 751 goto out; 752 753 for(i=0;i<bmsize;i++) 754 for(j=0;j<8;j++) 755 if(~tmp[i] & (1 << j)) cfree++; 756 *cfreep = cfree; 757 758 out: 759 FREE(tmp, M_TEMP); 760 return(error); 761 } 762 763 static int 764 ntfs_statfs(struct mount *mp, struct statfs *sbp, struct thread *td) 765 { 766 struct ntfsmount *ntmp = VFSTONTFS(mp); 767 u_int64_t mftsize,mftallocated; 768 769 dprintf(("ntfs_statfs():\n")); 770 771 mftsize = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_size; 772 mftallocated = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_allocated; 773 774 #if defined(__DragonFly__) 775 sbp->f_type = mp->mnt_vfc->vfc_typenum; 776 #elif defined(__NetBSD__) 777 sbp->f_type = 0; 778 #else 779 sbp->f_type = MOUNT_NTFS; 780 #endif 781 sbp->f_bsize = ntmp->ntm_bps; 782 sbp->f_iosize = ntmp->ntm_bps * ntmp->ntm_spc; 783 sbp->f_blocks = ntmp->ntm_bootfile.bf_spv; 784 sbp->f_bfree = sbp->f_bavail = ntfs_cntobn(ntmp->ntm_cfree); 785 sbp->f_ffree = sbp->f_bfree / ntmp->ntm_bpmftrec; 786 sbp->f_files = mftallocated / ntfs_bntob(ntmp->ntm_bpmftrec) + 787 sbp->f_ffree; 788 if (sbp != &mp->mnt_stat) { 789 bcopy((caddr_t)mp->mnt_stat.f_mntonname, 790 (caddr_t)&sbp->f_mntonname[0], MNAMELEN); 791 bcopy((caddr_t)mp->mnt_stat.f_mntfromname, 792 (caddr_t)&sbp->f_mntfromname[0], MNAMELEN); 793 } 794 sbp->f_flags = mp->mnt_flag; 795 #ifdef __NetBSD__ 796 strncpy(sbp->f_fstypename, mp->mnt_op->vfs_name, MFSNAMELEN); 797 #endif 798 799 return (0); 800 } 801 802 #if !defined(__DragonFly__) 803 static int 804 ntfs_sync(struct mount *mp, int waitfor, struct ucred *cred, struct thread *td) 805 { 806 /*dprintf(("ntfs_sync():\n"));*/ 807 return (0); 808 } 809 #endif 810 811 /*ARGSUSED*/ 812 static int 813 ntfs_fhtovp(struct mount *mp, struct fid *fhp, struct vnode **vpp) 814 { 815 struct vnode *nvp; 816 struct ntfid *ntfhp = (struct ntfid *)fhp; 817 int error; 818 819 ddprintf(("ntfs_fhtovp(): %d\n", ntfhp->ntfid_ino)); 820 821 if ((error = VFS_VGET(mp, ntfhp->ntfid_ino, &nvp)) != 0) { 822 *vpp = NULLVP; 823 return (error); 824 } 825 /* XXX as unlink/rmdir/mkdir/creat are not currently possible 826 * with NTFS, we don't need to check anything else for now */ 827 *vpp = nvp; 828 829 return (0); 830 } 831 832 static int 833 ntfs_vptofh(struct vnode *vp, struct fid *fhp) 834 { 835 struct ntnode *ntp; 836 struct ntfid *ntfhp; 837 838 ddprintf(("ntfs_fhtovp(): %p\n", vp)); 839 840 ntp = VTONT(vp); 841 ntfhp = (struct ntfid *)fhp; 842 ntfhp->ntfid_len = sizeof(struct ntfid); 843 ntfhp->ntfid_ino = ntp->i_number; 844 /* ntfhp->ntfid_gen = ntp->i_gen; */ 845 return (0); 846 } 847 848 int 849 ntfs_vgetex(struct mount *mp, ino_t ino, u_int32_t attrtype, char *attrname, 850 u_long lkflags, u_long flags, struct thread *td, 851 struct vnode **vpp) 852 { 853 int error; 854 struct ntfsmount *ntmp; 855 struct ntnode *ip; 856 struct fnode *fp; 857 struct vnode *vp; 858 enum vtype f_type; 859 860 dprintf(("ntfs_vgetex: ino: %d, attr: 0x%x:%s, lkf: 0x%lx, f: 0x%lx\n", 861 ino, attrtype, attrname?attrname:"", (u_long)lkflags, 862 (u_long)flags )); 863 864 ntmp = VFSTONTFS(mp); 865 *vpp = NULL; 866 867 /* Get ntnode */ 868 error = ntfs_ntlookup(ntmp, ino, &ip); 869 if (error) { 870 printf("ntfs_vget: ntfs_ntget failed\n"); 871 return (error); 872 } 873 874 /* It may be not initialized fully, so force load it */ 875 if (!(flags & VG_DONTLOADIN) && !(ip->i_flag & IN_LOADED)) { 876 error = ntfs_loadntnode(ntmp, ip); 877 if(error) { 878 printf("ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO: %d\n", 879 ip->i_number); 880 ntfs_ntput(ip); 881 return (error); 882 } 883 } 884 885 error = ntfs_fget(ntmp, ip, attrtype, attrname, &fp); 886 if (error) { 887 printf("ntfs_vget: ntfs_fget failed\n"); 888 ntfs_ntput(ip); 889 return (error); 890 } 891 892 f_type = VNON; 893 if (!(flags & VG_DONTVALIDFN) && !(fp->f_flag & FN_VALID)) { 894 if ((ip->i_frflag & NTFS_FRFLAG_DIR) && 895 (fp->f_attrtype == NTFS_A_DATA && fp->f_attrname == NULL)) { 896 f_type = VDIR; 897 } else if (flags & VG_EXT) { 898 f_type = VNON; 899 fp->f_size = fp->f_allocated = 0; 900 } else { 901 f_type = VREG; 902 903 error = ntfs_filesize(ntmp, fp, 904 &fp->f_size, &fp->f_allocated); 905 if (error) { 906 ntfs_ntput(ip); 907 return (error); 908 } 909 } 910 911 fp->f_flag |= FN_VALID; 912 } 913 914 if (FTOV(fp)) { 915 VGET(FTOV(fp), lkflags, td); 916 *vpp = FTOV(fp); 917 ntfs_ntput(ip); 918 return (0); 919 } 920 921 error = getnewvnode(VT_NTFS, ntmp->ntm_mountp, 922 ntmp->ntm_mountp->mnt_vn_ops, &vp, 923 VLKTIMEOUT, 0); 924 if(error) { 925 ntfs_frele(fp); 926 ntfs_ntput(ip); 927 return (error); 928 } 929 dprintf(("ntfs_vget: vnode: %p for ntnode: %d\n", vp,ino)); 930 931 fp->f_vp = vp; 932 vp->v_data = fp; 933 vp->v_type = f_type; 934 935 if (ino == NTFS_ROOTINO) 936 vp->v_flag |= VROOT; 937 938 ntfs_ntput(ip); 939 940 if (lkflags & LK_TYPE_MASK) { 941 KKASSERT((lkflags & LK_INTERLOCK) == 0); 942 error = VN_LOCK(vp, lkflags, td); 943 if (error) { 944 vput(vp); 945 return (error); 946 } 947 } 948 949 *vpp = vp; 950 return (0); 951 952 } 953 954 static int 955 ntfs_vget(struct mount *mp, ino_t ino, struct vnode **vpp) 956 { 957 return ntfs_vgetex(mp, ino, NTFS_A_DATA, NULL, 958 LK_EXCLUSIVE | LK_RETRY, 0, curthread, vpp); 959 } 960 961 #if defined(__DragonFly__) 962 static struct vfsops ntfs_vfsops = { 963 ntfs_mount, 964 vfs_stdstart, 965 ntfs_unmount, 966 ntfs_root, 967 vfs_stdquotactl, 968 ntfs_statfs, 969 vfs_stdsync, 970 ntfs_vget, 971 ntfs_fhtovp, 972 ntfs_checkexp, 973 ntfs_vptofh, 974 ntfs_init, 975 ntfs_nthash_uninit, /* see ntfs_ihash.c */ 976 vfs_stdextattrctl, 977 }; 978 VFS_SET(ntfs_vfsops, ntfs, 0); 979 #elif defined(__NetBSD__) 980 extern struct vnodeopv_desc ntfs_vnodeop_opv_desc; 981 982 struct vnodeopv_desc *ntfs_vnodeopv_descs[] = { 983 &ntfs_vnodeop_opv_desc, 984 NULL, 985 }; 986 987 struct vfsops ntfs_vfsops = { 988 MOUNT_NTFS, 989 ntfs_mount, 990 ntfs_start, 991 ntfs_unmount, 992 ntfs_root, 993 ntfs_quotactl, 994 ntfs_statfs, 995 ntfs_sync, 996 ntfs_vget, 997 ntfs_fhtovp, 998 ntfs_vptofh, 999 ntfs_init, 1000 ntfs_sysctl, 1001 ntfs_mountroot, 1002 ntfs_checkexp, 1003 ntfs_vnodeopv_descs, 1004 }; 1005 #else /* !NetBSD && !FreeBSD */ 1006 static struct vfsops ntfs_vfsops = { 1007 ntfs_mount, 1008 ntfs_start, 1009 ntfs_unmount, 1010 ntfs_root, 1011 ntfs_quotactl, 1012 ntfs_statfs, 1013 ntfs_sync, 1014 ntfs_vget, 1015 ntfs_fhtovp, 1016 ntfs_vptofh, 1017 ntfs_init, 1018 }; 1019 VFS_SET(ntfs_vfsops, ntfs, MOUNT_NTFS, 0); 1020 #endif 1021 1022 1023