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 1.16 2004/05/19 22:53:05 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 #if defined(__DragonFly__) 72 MALLOC_DEFINE(M_NTFSMNT, "NTFS mount", "NTFS mount structure"); 73 MALLOC_DEFINE(M_NTFSNTNODE,"NTFS ntnode", "NTFS ntnode information"); 74 MALLOC_DEFINE(M_NTFSFNODE,"NTFS fnode", "NTFS fnode information"); 75 MALLOC_DEFINE(M_NTFSDIR,"NTFS dir", "NTFS dir buffer"); 76 #endif 77 78 static int ntfs_root (struct mount *, struct vnode **); 79 static int ntfs_statfs (struct mount *, struct statfs *, 80 struct thread *); 81 static int ntfs_unmount (struct mount *, int, struct thread *); 82 static int ntfs_vget (struct mount *mp, ino_t ino, 83 struct vnode **vpp); 84 static int ntfs_mountfs (struct vnode *, struct mount *, 85 struct ntfs_args *, struct thread *); 86 static int ntfs_vptofh (struct vnode *, struct fid *); 87 static int ntfs_fhtovp (struct mount *, struct fid *, 88 struct vnode **); 89 90 #if !defined (__DragonFly__) 91 static int ntfs_quotactl (struct mount *, int, uid_t, caddr_t, 92 struct thread *); 93 static int ntfs_start (struct mount *, int, struct thread *); 94 static int ntfs_sync (struct mount *, int, struct ucred *, 95 struct thread *); 96 #endif 97 98 #if defined(__DragonFly__) 99 struct sockaddr; 100 static int ntfs_mount (struct mount *, char *, caddr_t, 101 struct nameidata *, struct thread *); 102 static int ntfs_init (struct vfsconf *); 103 static int ntfs_checkexp (struct mount *, struct sockaddr *, 104 int *, struct ucred **); 105 #elif defined(__NetBSD__) 106 static int ntfs_mount (struct mount *, const char *, void *, 107 struct nameidata *, struct thread *); 108 static void ntfs_init (void); 109 static int ntfs_mountroot (void); 110 static int ntfs_sysctl (int *, u_int, void *, size_t *, void *, 111 size_t, struct thread *); 112 static int ntfs_checkexp (struct mount *, struct mbuf *, 113 int *, struct ucred **); 114 #endif 115 116 /* 117 * Verify a remote client has export rights and return these rights via. 118 * exflagsp and credanonp. 119 */ 120 static int 121 ntfs_checkexp(struct mount *mp, 122 #if defined(__DragonFly__) 123 struct sockaddr *nam, 124 #else /* defined(__NetBSD__) */ 125 struct mbuf *nam, 126 #endif 127 int *exflagsp, struct ucred **credanonp) 128 { 129 struct netcred *np; 130 struct ntfsmount *ntm = VFSTONTFS(mp); 131 132 /* 133 * Get the export permission structure for this <mp, client> tuple. 134 */ 135 np = vfs_export_lookup(mp, &ntm->ntm_export, nam); 136 if (np == NULL) 137 return (EACCES); 138 139 *exflagsp = np->netc_exflags; 140 *credanonp = &np->netc_anon; 141 return (0); 142 } 143 144 #if defined(__NetBSD__) 145 /*ARGSUSED*/ 146 static int 147 ntfs_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp, 148 size_t newlen, struct thread *td) 149 { 150 return (EINVAL); 151 } 152 153 static int 154 ntfs_mountroot(void) 155 { 156 struct mount *mp; 157 extern struct vnode *rootvp; 158 struct thread *td = curthread; /* XXX */ 159 struct ntfs_args args; 160 lwkt_tokref ilock; 161 int error; 162 163 if (root_device->dv_class != DV_DISK) 164 return (ENODEV); 165 166 /* 167 * Get vnodes for rootdev. 168 */ 169 if (bdevvp(rootdev, &rootvp)) 170 panic("ntfs_mountroot: can't setup rootvp"); 171 172 if ((error = vfs_rootmountalloc(MOUNT_NTFS, "root_device", &mp))) { 173 vrele(rootvp); 174 return (error); 175 } 176 177 args.flag = 0; 178 args.uid = 0; 179 args.gid = 0; 180 args.mode = 0777; 181 182 if ((error = ntfs_mountfs(rootvp, mp, &args, td)) != 0) { 183 mp->mnt_op->vfs_refcount--; 184 vfs_unbusy(mp); 185 free(mp, M_MOUNT); 186 vrele(rootvp); 187 return (error); 188 } 189 190 lwkt_gettoken(&ilock, &mountlist_token); 191 CIRCLEQ_INSERT_TAIL(&mountlist, mp, mnt_list); 192 lwkt_reltoken(&ilock); 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 nameidata *ndp, struct thread *td) 225 { 226 size_t size; 227 int err = 0; 228 struct vnode *devvp; 229 struct ntfs_args args; 230 231 #ifdef __DragonFly__ 232 /* 233 * Use NULL path to flag a root mount 234 */ 235 if( path == NULL) { 236 /* 237 *** 238 * Mounting root file system 239 *** 240 */ 241 242 /* Get vnode for root device*/ 243 if( bdevvp( rootdev, &rootvp)) 244 panic("ffs_mountroot: can't setup bdevvp for root"); 245 246 /* 247 * FS specific handling 248 */ 249 mp->mnt_flag |= MNT_RDONLY; /* XXX globally applicable?*/ 250 251 /* 252 * Attempt mount 253 */ 254 if( ( err = ntfs_mountfs(rootvp, mp, &args, td)) != 0) { 255 /* fs specific cleanup (if any)*/ 256 goto error_1; 257 } 258 259 goto dostatfs; /* success*/ 260 261 } 262 #endif /* FreeBSD */ 263 264 /* 265 *** 266 * Mounting non-root file system or updating a file system 267 *** 268 */ 269 270 /* copy in user arguments*/ 271 err = copyin(data, (caddr_t)&args, sizeof (struct ntfs_args)); 272 if (err) 273 goto error_1; /* can't get arguments*/ 274 275 /* 276 * If updating, check whether changing from read-only to 277 * read/write; if there is no device name, that's all we do. 278 */ 279 if (mp->mnt_flag & MNT_UPDATE) { 280 /* if not updating name...*/ 281 if (args.fspec == 0) { 282 /* 283 * Process export requests. Jumping to "success" 284 * will return the vfs_export() error code. 285 */ 286 struct ntfsmount *ntm = VFSTONTFS(mp); 287 err = vfs_export(mp, &ntm->ntm_export, &args.export); 288 goto success; 289 } 290 291 printf("ntfs_mount(): MNT_UPDATE not supported\n"); 292 err = EINVAL; 293 goto error_1; 294 } 295 296 /* 297 * Not an update, or updating the name: look up the name 298 * and verify that it refers to a sensible block device. 299 */ 300 NDINIT(ndp, NAMEI_LOOKUP, CNP_FOLLOW, UIO_USERSPACE, args.fspec, td); 301 err = namei(ndp); 302 if (err) { 303 /* can't get devvp!*/ 304 goto error_1; 305 } 306 NDFREE(ndp, NDF_ONLY_PNBUF); 307 devvp = ndp->ni_vp; 308 309 #if defined(__DragonFly__) 310 if (!vn_isdisk(devvp, &err)) 311 goto error_2; 312 #else 313 if (devvp->v_type != VBLK) { 314 err = ENOTBLK; 315 goto error_2; 316 } 317 if (umajor(devvp->v_udev) >= nblkdev) { 318 err = ENXIO; 319 goto error_2; 320 } 321 #endif 322 if (mp->mnt_flag & MNT_UPDATE) { 323 #if 0 324 /* 325 ******************** 326 * UPDATE 327 ******************** 328 */ 329 330 if (devvp != ntmp->um_devvp) 331 err = EINVAL; /* needs translation */ 332 else 333 vrele(devvp); 334 /* 335 * Update device name only on success 336 */ 337 if( !err) { 338 /* Save "mounted from" info for mount point (NULL pad)*/ 339 copyinstr( args.fspec, 340 mp->mnt_stat.f_mntfromname, 341 MNAMELEN - 1, 342 &size); 343 bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size); 344 } 345 #endif 346 } else { 347 /* 348 ******************** 349 * NEW MOUNT 350 ******************** 351 */ 352 353 /* 354 * Since this is a new mount, we want the names for 355 * the device and the mount point copied in. If an 356 * error occurs, the mountpoint is discarded by the 357 * upper level code. 358 */ 359 /* Save "last mounted on" info for mount point (NULL pad)*/ 360 copyinstr( path, /* mount point*/ 361 mp->mnt_stat.f_mntonname, /* save area*/ 362 MNAMELEN - 1, /* max size*/ 363 &size); /* real size*/ 364 bzero( mp->mnt_stat.f_mntonname + size, MNAMELEN - size); 365 366 /* Save "mounted from" info for mount point (NULL pad)*/ 367 copyinstr( args.fspec, /* device name*/ 368 mp->mnt_stat.f_mntfromname, /* save area*/ 369 MNAMELEN - 1, /* max size*/ 370 &size); /* real size*/ 371 bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size); 372 373 err = ntfs_mountfs(devvp, mp, &args, td); 374 } 375 if (err) { 376 goto error_2; 377 } 378 379 #ifdef __DragonFly__ 380 dostatfs: 381 #endif 382 /* 383 * Initialize FS stat information in mount struct; uses both 384 * mp->mnt_stat.f_mntonname and mp->mnt_stat.f_mntfromname 385 * 386 * This code is common to root and non-root mounts 387 */ 388 (void)VFS_STATFS(mp, &mp->mnt_stat, td); 389 390 goto success; 391 392 393 error_2: /* error with devvp held*/ 394 395 /* release devvp before failing*/ 396 vrele(devvp); 397 398 error_1: /* no state to back out*/ 399 400 success: 401 return(err); 402 } 403 404 /* 405 * Common code for mount and mountroot 406 */ 407 int 408 ntfs_mountfs(struct vnode *devvp, struct mount *mp, struct ntfs_args *argsp, 409 struct thread *td) 410 { 411 struct buf *bp; 412 struct ntfsmount *ntmp; 413 dev_t dev; 414 int error, ronly, ncount, i; 415 struct vnode *vp; 416 struct ucred *cred; 417 418 KKASSERT(td->td_proc); 419 cred = td->td_proc->p_ucred; 420 421 /* 422 * Disallow multiple mounts of the same device. 423 * Disallow mounting of a device that is currently in use 424 * (except for root, which might share swap device for miniroot). 425 * Flush out any old buffers remaining from a previous use. 426 */ 427 error = vfs_mountedon(devvp); 428 if (error) 429 return (error); 430 ncount = count_udev(devvp); 431 #if defined(__DragonFly__) 432 if (devvp->v_object) 433 ncount -= 1; 434 #endif 435 if (ncount > 1 && devvp != rootvp) 436 return (EBUSY); 437 #if defined(__DragonFly__) 438 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, td); 439 error = vinvalbuf(devvp, V_SAVE, td, 0, 0); 440 VOP__UNLOCK(devvp, 0, td); 441 #else 442 error = vinvalbuf(devvp, V_SAVE, td, 0, 0); 443 #endif 444 if (error) 445 return (error); 446 447 ronly = (mp->mnt_flag & MNT_RDONLY) != 0; 448 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, td); 449 error = VOP_OPEN(devvp, ronly ? FREAD : FREAD|FWRITE, FSCRED, td); 450 VOP__UNLOCK(devvp, 0, td); 451 if (error) 452 return (error); 453 dev = devvp->v_rdev; 454 455 bp = NULL; 456 457 error = bread(devvp, BBLOCK, BBSIZE, &bp); 458 if (error) 459 goto out; 460 ntmp = malloc( sizeof *ntmp, M_NTFSMNT, M_WAITOK ); 461 bzero( ntmp, sizeof *ntmp ); 462 bcopy( bp->b_data, &ntmp->ntm_bootfile, sizeof(struct bootfile) ); 463 brelse( bp ); 464 bp = NULL; 465 466 if (strncmp(ntmp->ntm_bootfile.bf_sysid, NTFS_BBID, NTFS_BBIDLEN)) { 467 error = EINVAL; 468 dprintf(("ntfs_mountfs: invalid boot block\n")); 469 goto out; 470 } 471 472 { 473 int8_t cpr = ntmp->ntm_mftrecsz; 474 if( cpr > 0 ) 475 ntmp->ntm_bpmftrec = ntmp->ntm_spc * cpr; 476 else 477 ntmp->ntm_bpmftrec = (1 << (-cpr)) / ntmp->ntm_bps; 478 } 479 dprintf(("ntfs_mountfs(): bps: %d, spc: %d, media: %x, mftrecsz: %d (%d sects)\n", 480 ntmp->ntm_bps,ntmp->ntm_spc,ntmp->ntm_bootfile.bf_media, 481 ntmp->ntm_mftrecsz,ntmp->ntm_bpmftrec)); 482 dprintf(("ntfs_mountfs(): mftcn: 0x%x|0x%x\n", 483 (u_int32_t)ntmp->ntm_mftcn,(u_int32_t)ntmp->ntm_mftmirrcn)); 484 485 ntmp->ntm_mountp = mp; 486 ntmp->ntm_dev = dev; 487 ntmp->ntm_devvp = devvp; 488 ntmp->ntm_uid = argsp->uid; 489 ntmp->ntm_gid = argsp->gid; 490 ntmp->ntm_mode = argsp->mode; 491 ntmp->ntm_flag = argsp->flag; 492 493 /* Copy in the 8-bit to Unicode conversion table */ 494 if (argsp->flag & NTFSMNT_U2WTABLE) { 495 ntfs_82u_init(ntmp, argsp->u2w); 496 } else { 497 ntfs_82u_init(ntmp, NULL); 498 } 499 500 /* Initialize Unicode to 8-bit table from 8toU table */ 501 ntfs_u28_init(ntmp, ntmp->ntm_82u); 502 503 mp->mnt_data = (qaddr_t)ntmp; 504 505 dprintf(("ntfs_mountfs(): case-%s,%s uid: %d, gid: %d, mode: %o\n", 506 (ntmp->ntm_flag & NTFS_MFLAG_CASEINS)?"insens.":"sens.", 507 (ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES)?" allnames,":"", 508 ntmp->ntm_uid, ntmp->ntm_gid, ntmp->ntm_mode)); 509 510 /* 511 * We read in some system nodes to do not allow 512 * reclaim them and to have everytime access to them. 513 */ 514 { 515 int pi[3] = { NTFS_MFTINO, NTFS_ROOTINO, NTFS_BITMAPINO }; 516 for (i=0; i<3; i++) { 517 error = VFS_VGET(mp, pi[i], &(ntmp->ntm_sysvn[pi[i]])); 518 if(error) 519 goto out1; 520 ntmp->ntm_sysvn[pi[i]]->v_flag |= VSYSTEM; 521 vref(ntmp->ntm_sysvn[pi[i]]); 522 vput(ntmp->ntm_sysvn[pi[i]]); 523 } 524 } 525 526 /* read the Unicode lowercase --> uppercase translation table, 527 * if necessary */ 528 if ((error = ntfs_toupper_use(mp, ntmp))) 529 goto out1; 530 531 /* 532 * Scan $BitMap and count free clusters 533 */ 534 error = ntfs_calccfree(ntmp, &ntmp->ntm_cfree); 535 if(error) 536 goto out1; 537 538 /* 539 * Read and translate to internal format attribute 540 * definition file. 541 */ 542 { 543 int num,j; 544 struct attrdef ad; 545 546 /* Open $AttrDef */ 547 error = VFS_VGET(mp, NTFS_ATTRDEFINO, &vp ); 548 if(error) 549 goto out1; 550 551 /* Count valid entries */ 552 for(num=0;;num++) { 553 error = ntfs_readattr(ntmp, VTONT(vp), 554 NTFS_A_DATA, NULL, 555 num * sizeof(ad), sizeof(ad), 556 &ad, NULL); 557 if (error) 558 goto out1; 559 if (ad.ad_name[0] == 0) 560 break; 561 } 562 563 /* Alloc memory for attribute definitions */ 564 MALLOC(ntmp->ntm_ad, struct ntvattrdef *, 565 num * sizeof(struct ntvattrdef), 566 M_NTFSMNT, M_WAITOK); 567 568 ntmp->ntm_adnum = num; 569 570 /* Read them and translate */ 571 for(i=0;i<num;i++){ 572 error = ntfs_readattr(ntmp, VTONT(vp), 573 NTFS_A_DATA, NULL, 574 i * sizeof(ad), sizeof(ad), 575 &ad, NULL); 576 if (error) 577 goto out1; 578 j = 0; 579 do { 580 ntmp->ntm_ad[i].ad_name[j] = ad.ad_name[j]; 581 } while(ad.ad_name[j++]); 582 ntmp->ntm_ad[i].ad_namelen = j - 1; 583 ntmp->ntm_ad[i].ad_type = ad.ad_type; 584 } 585 586 vput(vp); 587 } 588 589 #if defined(__DragonFly__) 590 mp->mnt_stat.f_fsid.val[0] = dev2udev(dev); 591 mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum; 592 #else 593 mp->mnt_stat.f_fsid.val[0] = dev; 594 mp->mnt_stat.f_fsid.val[1] = makefstype(MOUNT_NTFS); 595 #endif 596 mp->mnt_maxsymlinklen = 0; 597 mp->mnt_flag |= MNT_LOCAL; 598 dev->si_mountpoint = mp; 599 return (0); 600 601 out1: 602 for(i=0;i<NTFS_SYSNODESNUM;i++) 603 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 604 605 if (vflush(mp, 0, 0)) 606 dprintf(("ntfs_mountfs: vflush failed\n")); 607 608 out: 609 dev->si_mountpoint = NULL; 610 if (bp) 611 brelse(bp); 612 613 #if defined __NetBSD__ 614 /* lock the device vnode before calling VOP_CLOSE() */ 615 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, td); 616 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, td); 617 VOP__UNLOCK(devvp, 0, td); 618 #else 619 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, td); 620 #endif 621 622 return (error); 623 } 624 625 #if !defined(__DragonFly__) 626 static int 627 ntfs_start(struct mount *mp, int flags, struct thread *td) 628 { 629 return (0); 630 } 631 #endif 632 633 static int 634 ntfs_unmount(struct mount *mp, int mntflags, struct thread *td) 635 { 636 struct ntfsmount *ntmp; 637 int error, ronly = 0, flags, i; 638 639 dprintf(("ntfs_unmount: unmounting...\n")); 640 ntmp = VFSTONTFS(mp); 641 642 flags = 0; 643 if(mntflags & MNT_FORCE) 644 flags |= FORCECLOSE; 645 646 dprintf(("ntfs_unmount: vflushing...\n")); 647 error = vflush(mp, 0, flags | SKIPSYSTEM); 648 if (error) { 649 printf("ntfs_unmount: vflush failed: %d\n",error); 650 return (error); 651 } 652 653 /* Check if only system vnodes are rest */ 654 for(i=0;i<NTFS_SYSNODESNUM;i++) 655 if((ntmp->ntm_sysvn[i]) && 656 (ntmp->ntm_sysvn[i]->v_usecount > 1)) return (EBUSY); 657 658 /* Dereference all system vnodes */ 659 for(i=0;i<NTFS_SYSNODESNUM;i++) 660 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 661 662 /* vflush system vnodes */ 663 error = vflush(mp, 0, flags); 664 if (error) 665 printf("ntfs_unmount: vflush failed(sysnodes): %d\n",error); 666 667 /* Check if the type of device node isn't VBAD before 668 * touching v_specinfo. If the device vnode is revoked, the 669 * field is NULL and touching it causes null pointer derefercence. 670 */ 671 if (ntmp->ntm_devvp->v_type != VBAD) 672 ntmp->ntm_devvp->v_rdev->si_mountpoint = NULL; 673 674 vinvalbuf(ntmp->ntm_devvp, V_SAVE, td, 0, 0); 675 676 #if defined(__NetBSD__) 677 /* lock the device vnode before calling VOP_CLOSE() */ 678 VOP_LOCK(ntmp->ntm_devvp, LK_EXCLUSIVE | LK_RETRY); 679 error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE, td); 680 VOP__UNLOCK(ntmp->ntm_devvp, 0, td); 681 #else 682 error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE, td); 683 #endif 684 685 vrele(ntmp->ntm_devvp); 686 687 /* free the toupper table, if this has been last mounted ntfs volume */ 688 ntfs_toupper_unuse(); 689 690 dprintf(("ntfs_umount: freeing memory...\n")); 691 ntfs_u28_uninit(ntmp); 692 ntfs_82u_uninit(ntmp); 693 mp->mnt_data = (qaddr_t)0; 694 mp->mnt_flag &= ~MNT_LOCAL; 695 FREE(ntmp->ntm_ad, M_NTFSMNT); 696 FREE(ntmp, M_NTFSMNT); 697 return (error); 698 } 699 700 static int 701 ntfs_root(struct mount *mp, struct vnode **vpp) 702 { 703 struct vnode *nvp; 704 int error = 0; 705 706 dprintf(("ntfs_root(): sysvn: %p\n", 707 VFSTONTFS(mp)->ntm_sysvn[NTFS_ROOTINO])); 708 error = VFS_VGET(mp, (ino_t)NTFS_ROOTINO, &nvp); 709 if(error) { 710 printf("ntfs_root: VFS_VGET failed: %d\n",error); 711 return (error); 712 } 713 714 *vpp = nvp; 715 return (0); 716 } 717 718 #if !defined(__DragonFly__) 719 static int 720 ntfs_quotactl(struct mount *mp, int cmds, uid_t uid, caddr_t arg, 721 struct thread *td) 722 { 723 printf("\nntfs_quotactl():\n"); 724 return EOPNOTSUPP; 725 } 726 #endif 727 728 int 729 ntfs_calccfree(struct ntfsmount *ntmp, cn_t *cfreep) 730 { 731 struct vnode *vp; 732 u_int8_t *tmp; 733 int j, error; 734 long cfree = 0; 735 size_t bmsize, i; 736 737 vp = ntmp->ntm_sysvn[NTFS_BITMAPINO]; 738 739 bmsize = VTOF(vp)->f_size; 740 741 MALLOC(tmp, u_int8_t *, bmsize, M_TEMP, M_WAITOK); 742 743 error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL, 744 0, bmsize, tmp, NULL); 745 if (error) 746 goto out; 747 748 for(i=0;i<bmsize;i++) 749 for(j=0;j<8;j++) 750 if(~tmp[i] & (1 << j)) cfree++; 751 *cfreep = cfree; 752 753 out: 754 FREE(tmp, M_TEMP); 755 return(error); 756 } 757 758 static int 759 ntfs_statfs(struct mount *mp, struct statfs *sbp, struct thread *td) 760 { 761 struct ntfsmount *ntmp = VFSTONTFS(mp); 762 u_int64_t mftsize,mftallocated; 763 764 dprintf(("ntfs_statfs():\n")); 765 766 mftsize = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_size; 767 mftallocated = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_allocated; 768 769 #if defined(__DragonFly__) 770 sbp->f_type = mp->mnt_vfc->vfc_typenum; 771 #elif defined(__NetBSD__) 772 sbp->f_type = 0; 773 #else 774 sbp->f_type = MOUNT_NTFS; 775 #endif 776 sbp->f_bsize = ntmp->ntm_bps; 777 sbp->f_iosize = ntmp->ntm_bps * ntmp->ntm_spc; 778 sbp->f_blocks = ntmp->ntm_bootfile.bf_spv; 779 sbp->f_bfree = sbp->f_bavail = ntfs_cntobn(ntmp->ntm_cfree); 780 sbp->f_ffree = sbp->f_bfree / ntmp->ntm_bpmftrec; 781 sbp->f_files = mftallocated / ntfs_bntob(ntmp->ntm_bpmftrec) + 782 sbp->f_ffree; 783 if (sbp != &mp->mnt_stat) { 784 bcopy((caddr_t)mp->mnt_stat.f_mntonname, 785 (caddr_t)&sbp->f_mntonname[0], MNAMELEN); 786 bcopy((caddr_t)mp->mnt_stat.f_mntfromname, 787 (caddr_t)&sbp->f_mntfromname[0], MNAMELEN); 788 } 789 sbp->f_flags = mp->mnt_flag; 790 #ifdef __NetBSD__ 791 strncpy(sbp->f_fstypename, mp->mnt_op->vfs_name, MFSNAMELEN); 792 #endif 793 794 return (0); 795 } 796 797 #if !defined(__DragonFly__) 798 static int 799 ntfs_sync(struct mount *mp, int waitfor, struct ucred *cred, struct thread *td) 800 { 801 /*dprintf(("ntfs_sync():\n"));*/ 802 return (0); 803 } 804 #endif 805 806 /*ARGSUSED*/ 807 static int 808 ntfs_fhtovp(struct mount *mp, struct fid *fhp, struct vnode **vpp) 809 { 810 struct vnode *nvp; 811 struct ntfid *ntfhp = (struct ntfid *)fhp; 812 int error; 813 814 ddprintf(("ntfs_fhtovp(): %d\n", ntfhp->ntfid_ino)); 815 816 if ((error = VFS_VGET(mp, ntfhp->ntfid_ino, &nvp)) != 0) { 817 *vpp = NULLVP; 818 return (error); 819 } 820 /* XXX as unlink/rmdir/mkdir/creat are not currently possible 821 * with NTFS, we don't need to check anything else for now */ 822 *vpp = nvp; 823 824 return (0); 825 } 826 827 static int 828 ntfs_vptofh(struct vnode *vp, struct fid *fhp) 829 { 830 struct ntnode *ntp; 831 struct ntfid *ntfhp; 832 833 ddprintf(("ntfs_fhtovp(): %p\n", vp)); 834 835 ntp = VTONT(vp); 836 ntfhp = (struct ntfid *)fhp; 837 ntfhp->ntfid_len = sizeof(struct ntfid); 838 ntfhp->ntfid_ino = ntp->i_number; 839 /* ntfhp->ntfid_gen = ntp->i_gen; */ 840 return (0); 841 } 842 843 int 844 ntfs_vgetex(struct mount *mp, ino_t ino, u_int32_t attrtype, char *attrname, 845 u_long lkflags, u_long flags, struct thread *td, 846 struct vnode **vpp) 847 { 848 int error; 849 struct ntfsmount *ntmp; 850 struct ntnode *ip; 851 struct fnode *fp; 852 struct vnode *vp; 853 enum vtype f_type; 854 855 dprintf(("ntfs_vgetex: ino: %d, attr: 0x%x:%s, lkf: 0x%lx, f: 0x%lx\n", 856 ino, attrtype, attrname?attrname:"", (u_long)lkflags, 857 (u_long)flags )); 858 859 ntmp = VFSTONTFS(mp); 860 *vpp = NULL; 861 862 /* Get ntnode */ 863 error = ntfs_ntlookup(ntmp, ino, &ip); 864 if (error) { 865 printf("ntfs_vget: ntfs_ntget failed\n"); 866 return (error); 867 } 868 869 /* It may be not initialized fully, so force load it */ 870 if (!(flags & VG_DONTLOADIN) && !(ip->i_flag & IN_LOADED)) { 871 error = ntfs_loadntnode(ntmp, ip); 872 if(error) { 873 printf("ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO: %d\n", 874 ip->i_number); 875 ntfs_ntput(ip); 876 return (error); 877 } 878 } 879 880 error = ntfs_fget(ntmp, ip, attrtype, attrname, &fp); 881 if (error) { 882 printf("ntfs_vget: ntfs_fget failed\n"); 883 ntfs_ntput(ip); 884 return (error); 885 } 886 887 f_type = VNON; 888 if (!(flags & VG_DONTVALIDFN) && !(fp->f_flag & FN_VALID)) { 889 if ((ip->i_frflag & NTFS_FRFLAG_DIR) && 890 (fp->f_attrtype == NTFS_A_DATA && fp->f_attrname == NULL)) { 891 f_type = VDIR; 892 } else if (flags & VG_EXT) { 893 f_type = VNON; 894 fp->f_size = fp->f_allocated = 0; 895 } else { 896 f_type = VREG; 897 898 error = ntfs_filesize(ntmp, fp, 899 &fp->f_size, &fp->f_allocated); 900 if (error) { 901 ntfs_ntput(ip); 902 return (error); 903 } 904 } 905 906 fp->f_flag |= FN_VALID; 907 } 908 909 if (FTOV(fp)) { 910 VGET(FTOV(fp), lkflags, td); 911 *vpp = FTOV(fp); 912 ntfs_ntput(ip); 913 return (0); 914 } 915 916 error = getnewvnode(VT_NTFS, ntmp->ntm_mountp, ntfs_vnodeop_p, &vp); 917 if(error) { 918 ntfs_frele(fp); 919 ntfs_ntput(ip); 920 return (error); 921 } 922 dprintf(("ntfs_vget: vnode: %p for ntnode: %d\n", vp,ino)); 923 924 #ifdef __DragonFly__ 925 lockinit(&fp->f_lock, 0, "fnode", VLKTIMEOUT, 0); 926 #endif 927 fp->f_vp = vp; 928 vp->v_data = fp; 929 vp->v_type = f_type; 930 931 if (ino == NTFS_ROOTINO) 932 vp->v_flag |= VROOT; 933 934 ntfs_ntput(ip); 935 936 if (lkflags & LK_TYPE_MASK) { 937 KKASSERT((lkflags & LK_INTERLOCK) == 0); 938 error = VN_LOCK(vp, lkflags, td); 939 if (error) { 940 vput(vp); 941 return (error); 942 } 943 } 944 945 *vpp = vp; 946 return (0); 947 948 } 949 950 static int 951 ntfs_vget(struct mount *mp, ino_t ino, struct vnode **vpp) 952 { 953 return ntfs_vgetex(mp, ino, NTFS_A_DATA, NULL, 954 LK_EXCLUSIVE | LK_RETRY, 0, curthread, vpp); 955 } 956 957 #if defined(__DragonFly__) 958 static struct vfsops ntfs_vfsops = { 959 ntfs_mount, 960 vfs_stdstart, 961 ntfs_unmount, 962 ntfs_root, 963 vfs_stdquotactl, 964 ntfs_statfs, 965 vfs_stdsync, 966 ntfs_vget, 967 ntfs_fhtovp, 968 ntfs_checkexp, 969 ntfs_vptofh, 970 ntfs_init, 971 ntfs_nthash_uninit, /* see ntfs_ihash.c */ 972 vfs_stdextattrctl, 973 }; 974 VFS_SET(ntfs_vfsops, ntfs, 0); 975 #elif defined(__NetBSD__) 976 extern struct vnodeopv_desc ntfs_vnodeop_opv_desc; 977 978 struct vnodeopv_desc *ntfs_vnodeopv_descs[] = { 979 &ntfs_vnodeop_opv_desc, 980 NULL, 981 }; 982 983 struct vfsops ntfs_vfsops = { 984 MOUNT_NTFS, 985 ntfs_mount, 986 ntfs_start, 987 ntfs_unmount, 988 ntfs_root, 989 ntfs_quotactl, 990 ntfs_statfs, 991 ntfs_sync, 992 ntfs_vget, 993 ntfs_fhtovp, 994 ntfs_vptofh, 995 ntfs_init, 996 ntfs_sysctl, 997 ntfs_mountroot, 998 ntfs_checkexp, 999 ntfs_vnodeopv_descs, 1000 }; 1001 #else /* !NetBSD && !FreeBSD */ 1002 static struct vfsops ntfs_vfsops = { 1003 ntfs_mount, 1004 ntfs_start, 1005 ntfs_unmount, 1006 ntfs_root, 1007 ntfs_quotactl, 1008 ntfs_statfs, 1009 ntfs_sync, 1010 ntfs_vget, 1011 ntfs_fhtovp, 1012 ntfs_vptofh, 1013 ntfs_init, 1014 }; 1015 VFS_SET(ntfs_vfsops, ntfs, MOUNT_NTFS, 0); 1016 #endif 1017 1018 1019