1 /* $NetBSD: ntfs_vfsops.c,v 1.10 2003/06/29 22:31:11 fvdl 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 * Id: ntfs_vfsops.c,v 1.7 1999/05/31 11:28:30 phk Exp 29 */ 30 31 #include <sys/cdefs.h> 32 __KERNEL_RCSID(0, "$NetBSD: ntfs_vfsops.c,v 1.10 2003/06/29 22:31:11 fvdl Exp $"); 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/namei.h> 37 #include <sys/proc.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 #include <sys/device.h> 46 #include <sys/conf.h> 47 48 #if defined(__NetBSD__) 49 #include <uvm/uvm_extern.h> 50 #else 51 #include <vm/vm.h> 52 #endif 53 54 #include <miscfs/specfs/specdev.h> 55 56 /*#define NTFS_DEBUG 1*/ 57 #include <fs/ntfs/ntfs.h> 58 #include <fs/ntfs/ntfs_inode.h> 59 #include <fs/ntfs/ntfs_subr.h> 60 #include <fs/ntfs/ntfs_vfsops.h> 61 #include <fs/ntfs/ntfs_ihash.h> 62 #include <fs/ntfs/ntfsmount.h> 63 64 MALLOC_DEFINE(M_NTFSMNT, "NTFS mount", "NTFS mount structure"); 65 MALLOC_DEFINE(M_NTFSNTNODE,"NTFS ntnode", "NTFS ntnode information"); 66 MALLOC_DEFINE(M_NTFSFNODE,"NTFS fnode", "NTFS fnode information"); 67 MALLOC_DEFINE(M_NTFSDIR,"NTFS dir", "NTFS dir buffer"); 68 69 #if defined(__FreeBSD__) 70 static int ntfs_mount __P((struct mount *, char *, caddr_t, 71 struct nameidata *, struct proc *)); 72 #else 73 static int ntfs_mount __P((struct mount *, const char *, void *, 74 struct nameidata *, struct proc *)); 75 #endif 76 static int ntfs_quotactl __P((struct mount *, int, uid_t, caddr_t, 77 struct proc *)); 78 static int ntfs_root __P((struct mount *, struct vnode **)); 79 static int ntfs_start __P((struct mount *, int, struct proc *)); 80 static int ntfs_statfs __P((struct mount *, struct statfs *, 81 struct proc *)); 82 static int ntfs_sync __P((struct mount *, int, struct ucred *, 83 struct proc *)); 84 static int ntfs_unmount __P((struct mount *, int, struct proc *)); 85 static int ntfs_vget __P((struct mount *mp, ino_t ino, 86 struct vnode **vpp)); 87 static int ntfs_mountfs __P((struct vnode *, struct mount *, 88 struct ntfs_args *, struct proc *)); 89 static int ntfs_vptofh __P((struct vnode *, struct fid *)); 90 91 #if defined(__FreeBSD__) 92 static int ntfs_init __P((struct vfsconf *)); 93 static int ntfs_fhtovp __P((struct mount *, struct fid *, 94 struct sockaddr *, struct vnode **, 95 int *, struct ucred **)); 96 #elif defined(__NetBSD__) 97 static void ntfs_init __P((void)); 98 static void ntfs_reinit __P((void)); 99 static void ntfs_done __P((void)); 100 static int ntfs_fhtovp __P((struct mount *, struct fid *, 101 struct vnode **)); 102 static int ntfs_checkexp __P((struct mount *, struct mbuf *, 103 int *, struct ucred **)); 104 static int ntfs_mountroot __P((void)); 105 static int ntfs_sysctl __P((int *, u_int, void *, size_t *, void *, 106 size_t, struct proc *)); 107 #else 108 static int ntfs_init __P((void)); 109 static int ntfs_fhtovp __P((struct mount *, struct fid *, 110 struct mbuf *, struct vnode **, 111 int *, struct ucred **)); 112 #endif 113 114 struct genfs_ops ntfs_genfsops = { 115 NULL, 116 NULL, 117 genfs_compat_gop_write, 118 }; 119 120 #ifdef __NetBSD__ 121 /* 122 * Verify a remote client has export rights and return these rights via. 123 * exflagsp and credanonp. 124 */ 125 static int 126 ntfs_checkexp(mp, nam, exflagsp, credanonp) 127 struct mount *mp; 128 struct mbuf *nam; 129 int *exflagsp; 130 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 /*ARGSUSED*/ 148 static int 149 ntfs_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) 150 int *name; 151 u_int namelen; 152 void *oldp; 153 size_t *oldlenp; 154 void *newp; 155 size_t newlen; 156 struct proc *p; 157 { 158 return (EINVAL); 159 } 160 161 static int 162 ntfs_mountroot() 163 { 164 struct mount *mp; 165 struct proc *p = curproc; /* XXX */ 166 int error; 167 struct ntfs_args args; 168 169 if (root_device->dv_class != DV_DISK) 170 return (ENODEV); 171 172 /* 173 * Get vnodes for rootdev. 174 */ 175 if (bdevvp(rootdev, &rootvp)) 176 panic("ntfs_mountroot: can't setup rootvp"); 177 178 if ((error = vfs_rootmountalloc(MOUNT_NTFS, "root_device", &mp))) { 179 vrele(rootvp); 180 return (error); 181 } 182 183 args.flag = 0; 184 args.uid = 0; 185 args.gid = 0; 186 args.mode = 0777; 187 188 if ((error = ntfs_mountfs(rootvp, mp, &args, p)) != 0) { 189 mp->mnt_op->vfs_refcount--; 190 vfs_unbusy(mp); 191 free(mp, M_MOUNT); 192 vrele(rootvp); 193 return (error); 194 } 195 196 simple_lock(&mountlist_slock); 197 CIRCLEQ_INSERT_TAIL(&mountlist, mp, mnt_list); 198 simple_unlock(&mountlist_slock); 199 (void)ntfs_statfs(mp, &mp->mnt_stat, p); 200 vfs_unbusy(mp); 201 return (0); 202 } 203 204 static void 205 ntfs_init() 206 { 207 #ifdef _LKM 208 malloc_type_attach(M_NTFSMNT); 209 malloc_type_attach(M_NTFSNTNODE); 210 malloc_type_attach(M_NTFSFNODE); 211 malloc_type_attach(M_NTFSDIR); 212 malloc_type_attach(M_NTFSNTHASH); 213 malloc_type_attach(M_NTFSNTVATTR); 214 malloc_type_attach(M_NTFSRDATA); 215 malloc_type_attach(M_NTFSDECOMP); 216 malloc_type_attach(M_NTFSRUN); 217 #endif 218 ntfs_nthashinit(); 219 ntfs_toupper_init(); 220 } 221 222 static void 223 ntfs_reinit() 224 { 225 ntfs_nthashreinit(); 226 } 227 228 static void 229 ntfs_done() 230 { 231 ntfs_nthashdone(); 232 #ifdef _LKM 233 malloc_type_detach(M_NTFSMNT); 234 malloc_type_detach(M_NTFSNTNODE); 235 malloc_type_detach(M_NTFSFNODE); 236 malloc_type_detach(M_NTFSDIR); 237 malloc_type_detach(M_NTFSNTHASH); 238 malloc_type_detach(M_NTFSNTVATTR); 239 malloc_type_detach(M_NTFSRDATA); 240 malloc_type_detach(M_NTFSDECOMP); 241 malloc_type_detach(M_NTFSRUN); 242 #endif 243 } 244 245 #elif defined(__FreeBSD__) 246 247 static int 248 ntfs_init ( 249 struct vfsconf *vcp ) 250 { 251 ntfs_nthashinit(); 252 ntfs_toupper_init(); 253 return 0; 254 } 255 256 #endif /* NetBSD */ 257 258 static int 259 ntfs_mount ( 260 struct mount *mp, 261 #if defined(__FreeBSD__) 262 char *path, 263 caddr_t data, 264 #else 265 const char *path, 266 void *data, 267 #endif 268 struct nameidata *ndp, 269 struct proc *p ) 270 { 271 int err = 0; 272 struct vnode *devvp; 273 struct ntfs_args args; 274 275 #ifdef __FreeBSD__ 276 /* 277 * Use NULL path to flag a root mount 278 */ 279 if( path == NULL) { 280 /* 281 *** 282 * Mounting root file system 283 *** 284 */ 285 286 /* Get vnode for root device*/ 287 if( bdevvp( rootdev, &rootvp)) 288 panic("ffs_mountroot: can't setup bdevvp for root"); 289 290 /* 291 * FS specific handling 292 */ 293 mp->mnt_flag |= MNT_RDONLY; /* XXX globally applicable?*/ 294 295 /* 296 * Attempt mount 297 */ 298 if( ( err = ntfs_mountfs(rootvp, mp, &args, p)) != 0) { 299 /* fs specific cleanup (if any)*/ 300 goto error_1; 301 } 302 303 goto dostatfs; /* success*/ 304 305 } 306 #endif /* FreeBSD */ 307 308 if (mp->mnt_flag & MNT_GETARGS) { 309 struct ntfsmount *ntmp = VFSTONTFS(mp); 310 if (ntmp == NULL) 311 return EIO; 312 args.fspec = NULL; 313 args.uid = ntmp->ntm_uid; 314 args.gid = ntmp->ntm_gid; 315 args.mode = ntmp->ntm_mode; 316 args.flag = ntmp->ntm_flag; 317 vfs_showexport(mp, &args.export, &ntmp->ntm_export); 318 return copyout(&args, data, sizeof(args)); 319 } 320 /* 321 *** 322 * Mounting non-root file system or updating a file system 323 *** 324 */ 325 326 /* copy in user arguments*/ 327 err = copyin(data, (caddr_t)&args, sizeof (struct ntfs_args)); 328 if (err) 329 goto error_1; /* can't get arguments*/ 330 331 /* 332 * If updating, check whether changing from read-only to 333 * read/write; if there is no device name, that's all we do. 334 */ 335 if (mp->mnt_flag & MNT_UPDATE) { 336 /* if not updating name...*/ 337 if (args.fspec == 0) { 338 /* 339 * Process export requests. Jumping to "success" 340 * will return the vfs_export() error code. 341 */ 342 struct ntfsmount *ntm = VFSTONTFS(mp); 343 err = vfs_export(mp, &ntm->ntm_export, &args.export); 344 goto success; 345 } 346 347 printf("ntfs_mount(): MNT_UPDATE not supported\n"); 348 err = EINVAL; 349 goto error_1; 350 } 351 352 /* 353 * Not an update, or updating the name: look up the name 354 * and verify that it refers to a sensible block device. 355 */ 356 NDINIT(ndp, LOOKUP, FOLLOW, UIO_USERSPACE, args.fspec, p); 357 err = namei(ndp); 358 if (err) { 359 /* can't get devvp!*/ 360 goto error_1; 361 } 362 363 devvp = ndp->ni_vp; 364 365 if (devvp->v_type != VBLK) { 366 err = ENOTBLK; 367 goto error_2; 368 } 369 #ifdef __FreeBSD__ 370 if (bdevsw(devvp->v_rdev) == NULL) { 371 #else 372 if (bdevsw_lookup(devvp->v_rdev) == NULL) { 373 #endif 374 err = ENXIO; 375 goto error_2; 376 } 377 if (mp->mnt_flag & MNT_UPDATE) { 378 #if 0 379 /* 380 ******************** 381 * UPDATE 382 ******************** 383 */ 384 385 if (devvp != ntmp->um_devvp) 386 err = EINVAL; /* needs translation */ 387 else 388 vrele(devvp); 389 /* 390 * Update device name only on success 391 */ 392 if( !err) { 393 err = set_statfs_info(NULL, UIO_USERSPACE, args.fspec, 394 UIO_USERSPACE, mp, p); 395 } 396 #endif 397 } else { 398 /* 399 ******************** 400 * NEW MOUNT 401 ******************** 402 */ 403 404 /* 405 * Since this is a new mount, we want the names for 406 * the device and the mount point copied in. If an 407 * error occurs, the mountpoint is discarded by the 408 * upper level code. 409 */ 410 /* Save "last mounted on" info for mount point (NULL pad)*/ 411 err = set_statfs_info(path, UIO_USERSPACE, args.fspec, 412 UIO_USERSPACE, mp, p); 413 if ( !err) { 414 err = ntfs_mountfs(devvp, mp, &args, p); 415 } 416 } 417 if (err) { 418 goto error_2; 419 } 420 421 #ifdef __FreeBSD__ 422 dostatfs: 423 #endif 424 /* 425 * Initialize FS stat information in mount struct; uses both 426 * mp->mnt_stat.f_mntonname and mp->mnt_stat.f_mntfromname 427 * 428 * This code is common to root and non-root mounts 429 */ 430 (void)VFS_STATFS(mp, &mp->mnt_stat, p); 431 432 goto success; 433 434 435 error_2: /* error with devvp held*/ 436 437 /* release devvp before failing*/ 438 vrele(devvp); 439 440 error_1: /* no state to back out*/ 441 442 success: 443 return(err); 444 } 445 446 /* 447 * Common code for mount and mountroot 448 */ 449 int 450 ntfs_mountfs(devvp, mp, argsp, p) 451 struct vnode *devvp; 452 struct mount *mp; 453 struct ntfs_args *argsp; 454 struct proc *p; 455 { 456 struct buf *bp; 457 struct ntfsmount *ntmp; 458 dev_t dev = devvp->v_rdev; 459 int error, ronly, ncount, i; 460 struct vnode *vp; 461 462 /* 463 * Disallow multiple mounts of the same device. 464 * Disallow mounting of a device that is currently in use 465 * (except for root, which might share swap device for miniroot). 466 * Flush out any old buffers remaining from a previous use. 467 */ 468 error = vfs_mountedon(devvp); 469 if (error) 470 return (error); 471 ncount = vcount(devvp); 472 if (ncount > 1 && devvp != rootvp) 473 return (EBUSY); 474 error = vinvalbuf(devvp, V_SAVE, p->p_ucred, p, 0, 0); 475 if (error) 476 return (error); 477 478 ronly = (mp->mnt_flag & MNT_RDONLY) != 0; 479 error = VOP_OPEN(devvp, ronly ? FREAD : FREAD|FWRITE, FSCRED, p); 480 if (error) 481 return (error); 482 483 bp = NULL; 484 485 error = bread(devvp, BBLOCK, BBSIZE, NOCRED, &bp); 486 if (error) 487 goto out; 488 ntmp = malloc( sizeof *ntmp, M_NTFSMNT, M_WAITOK ); 489 bzero( ntmp, sizeof *ntmp ); 490 bcopy( bp->b_data, &ntmp->ntm_bootfile, sizeof(struct bootfile) ); 491 brelse( bp ); 492 bp = NULL; 493 494 if (strncmp(ntmp->ntm_bootfile.bf_sysid, NTFS_BBID, NTFS_BBIDLEN)) { 495 error = EINVAL; 496 dprintf(("ntfs_mountfs: invalid boot block\n")); 497 goto out; 498 } 499 500 { 501 int8_t cpr = ntmp->ntm_mftrecsz; 502 if( cpr > 0 ) 503 ntmp->ntm_bpmftrec = ntmp->ntm_spc * cpr; 504 else 505 ntmp->ntm_bpmftrec = (1 << (-cpr)) / ntmp->ntm_bps; 506 } 507 dprintf(("ntfs_mountfs(): bps: %d, spc: %d, media: %x, mftrecsz: %d (%d sects)\n", 508 ntmp->ntm_bps,ntmp->ntm_spc,ntmp->ntm_bootfile.bf_media, 509 ntmp->ntm_mftrecsz,ntmp->ntm_bpmftrec)); 510 dprintf(("ntfs_mountfs(): mftcn: 0x%x|0x%x\n", 511 (u_int32_t)ntmp->ntm_mftcn,(u_int32_t)ntmp->ntm_mftmirrcn)); 512 513 ntmp->ntm_mountp = mp; 514 ntmp->ntm_dev = dev; 515 ntmp->ntm_devvp = devvp; 516 ntmp->ntm_uid = argsp->uid; 517 ntmp->ntm_gid = argsp->gid; 518 ntmp->ntm_mode = argsp->mode; 519 ntmp->ntm_flag = argsp->flag; 520 mp->mnt_data = ntmp; 521 522 /* set file name encode/decode hooks XXX utf-8 only for now */ 523 ntmp->ntm_wget = ntfs_utf8_wget; 524 ntmp->ntm_wput = ntfs_utf8_wput; 525 ntmp->ntm_wcmp = ntfs_utf8_wcmp; 526 527 dprintf(("ntfs_mountfs(): case-%s,%s uid: %d, gid: %d, mode: %o\n", 528 (ntmp->ntm_flag & NTFS_MFLAG_CASEINS)?"insens.":"sens.", 529 (ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES)?" allnames,":"", 530 ntmp->ntm_uid, ntmp->ntm_gid, ntmp->ntm_mode)); 531 532 /* 533 * We read in some system nodes to do not allow 534 * reclaim them and to have everytime access to them. 535 */ 536 { 537 int pi[3] = { NTFS_MFTINO, NTFS_ROOTINO, NTFS_BITMAPINO }; 538 for (i=0; i<3; i++) { 539 error = VFS_VGET(mp, pi[i], &(ntmp->ntm_sysvn[pi[i]])); 540 if(error) 541 goto out1; 542 ntmp->ntm_sysvn[pi[i]]->v_flag |= VSYSTEM; 543 VREF(ntmp->ntm_sysvn[pi[i]]); 544 vput(ntmp->ntm_sysvn[pi[i]]); 545 } 546 } 547 548 /* read the Unicode lowercase --> uppercase translation table, 549 * if necessary */ 550 if ((error = ntfs_toupper_use(mp, ntmp))) 551 goto out1; 552 553 /* 554 * Scan $BitMap and count free clusters 555 */ 556 error = ntfs_calccfree(ntmp, &ntmp->ntm_cfree); 557 if(error) 558 goto out1; 559 560 /* 561 * Read and translate to internal format attribute 562 * definition file. 563 */ 564 { 565 int num,j; 566 struct attrdef ad; 567 568 /* Open $AttrDef */ 569 error = VFS_VGET(mp, NTFS_ATTRDEFINO, &vp ); 570 if(error) 571 goto out1; 572 573 /* Count valid entries */ 574 for(num=0;;num++) { 575 error = ntfs_readattr(ntmp, VTONT(vp), 576 NTFS_A_DATA, NULL, 577 num * sizeof(ad), sizeof(ad), 578 &ad, NULL); 579 if (error) 580 goto out1; 581 if (ad.ad_name[0] == 0) 582 break; 583 } 584 585 /* Alloc memory for attribute definitions */ 586 ntmp->ntm_ad = (struct ntvattrdef *) malloc( 587 num * sizeof(struct ntvattrdef), 588 M_NTFSMNT, M_WAITOK); 589 590 ntmp->ntm_adnum = num; 591 592 /* Read them and translate */ 593 for(i=0;i<num;i++){ 594 error = ntfs_readattr(ntmp, VTONT(vp), 595 NTFS_A_DATA, NULL, 596 i * sizeof(ad), sizeof(ad), 597 &ad, NULL); 598 if (error) 599 goto out1; 600 j = 0; 601 do { 602 ntmp->ntm_ad[i].ad_name[j] = ad.ad_name[j]; 603 } while(ad.ad_name[j++]); 604 ntmp->ntm_ad[i].ad_namelen = j - 1; 605 ntmp->ntm_ad[i].ad_type = ad.ad_type; 606 } 607 608 vput(vp); 609 } 610 611 #if defined(__FreeBSD__) 612 mp->mnt_stat.f_fsid.val[0] = dev2udev(dev); 613 mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum; 614 #else 615 mp->mnt_stat.f_fsid.val[0] = dev; 616 mp->mnt_stat.f_fsid.val[1] = makefstype(MOUNT_NTFS); 617 #endif 618 mp->mnt_maxsymlinklen = 0; 619 mp->mnt_flag |= MNT_LOCAL; 620 devvp->v_specmountpoint = mp; 621 return (0); 622 623 out1: 624 for(i=0;i<NTFS_SYSNODESNUM;i++) 625 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 626 627 if (vflush(mp,NULLVP,0)) 628 dprintf(("ntfs_mountfs: vflush failed\n")); 629 630 out: 631 devvp->v_specmountpoint = NULL; 632 if (bp) 633 brelse(bp); 634 635 /* lock the device vnode before calling VOP_CLOSE() */ 636 vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY); 637 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, NOCRED, p); 638 VOP_UNLOCK(devvp, 0); 639 640 return (error); 641 } 642 643 static int 644 ntfs_start ( 645 struct mount *mp, 646 int flags, 647 struct proc *p ) 648 { 649 return (0); 650 } 651 652 static int 653 ntfs_unmount( 654 struct mount *mp, 655 int mntflags, 656 struct proc *p) 657 { 658 struct ntfsmount *ntmp; 659 int error, ronly = 0, flags, i; 660 661 dprintf(("ntfs_unmount: unmounting...\n")); 662 ntmp = VFSTONTFS(mp); 663 664 flags = 0; 665 if(mntflags & MNT_FORCE) 666 flags |= FORCECLOSE; 667 668 dprintf(("ntfs_unmount: vflushing...\n")); 669 error = vflush(mp,NULLVP,flags | SKIPSYSTEM); 670 if (error) { 671 dprintf(("ntfs_unmount: vflush failed: %d\n",error)); 672 return (error); 673 } 674 675 /* Check if only system vnodes are rest */ 676 for(i=0;i<NTFS_SYSNODESNUM;i++) 677 if((ntmp->ntm_sysvn[i]) && 678 (ntmp->ntm_sysvn[i]->v_usecount > 1)) return (EBUSY); 679 680 /* Dereference all system vnodes */ 681 for(i=0;i<NTFS_SYSNODESNUM;i++) 682 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 683 684 /* vflush system vnodes */ 685 error = vflush(mp,NULLVP,flags); 686 if (error) { 687 /* XXX should this be panic() ? */ 688 printf("ntfs_unmount: vflush failed(sysnodes): %d\n",error); 689 } 690 691 /* Check if the type of device node isn't VBAD before 692 * touching v_specinfo. If the device vnode is revoked, the 693 * field is NULL and touching it causes null pointer derefercence. 694 */ 695 if (ntmp->ntm_devvp->v_type != VBAD) 696 ntmp->ntm_devvp->v_specmountpoint = NULL; 697 698 vinvalbuf(ntmp->ntm_devvp, V_SAVE, NOCRED, p, 0, 0); 699 700 /* lock the device vnode before calling VOP_CLOSE() */ 701 VOP_LOCK(ntmp->ntm_devvp, LK_EXCLUSIVE | LK_RETRY); 702 error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE, 703 NOCRED, p); 704 VOP_UNLOCK(ntmp->ntm_devvp, 0); 705 706 vrele(ntmp->ntm_devvp); 707 708 /* free the toupper table, if this has been last mounted ntfs volume */ 709 ntfs_toupper_unuse(); 710 711 dprintf(("ntfs_umount: freeing memory...\n")); 712 mp->mnt_data = NULL; 713 mp->mnt_flag &= ~MNT_LOCAL; 714 free(ntmp->ntm_ad, M_NTFSMNT); 715 FREE(ntmp, M_NTFSMNT); 716 return (error); 717 } 718 719 static int 720 ntfs_root( 721 struct mount *mp, 722 struct vnode **vpp ) 723 { 724 struct vnode *nvp; 725 int error = 0; 726 727 dprintf(("ntfs_root(): sysvn: %p\n", 728 VFSTONTFS(mp)->ntm_sysvn[NTFS_ROOTINO])); 729 error = VFS_VGET(mp, (ino_t)NTFS_ROOTINO, &nvp); 730 if(error) { 731 printf("ntfs_root: VFS_VGET failed: %d\n",error); 732 return (error); 733 } 734 735 *vpp = nvp; 736 return (0); 737 } 738 739 static int 740 ntfs_quotactl ( 741 struct mount *mp, 742 int cmds, 743 uid_t uid, 744 caddr_t arg, 745 struct proc *p) 746 { 747 printf("\nntfs_quotactl():\n"); 748 return EOPNOTSUPP; 749 } 750 751 int 752 ntfs_calccfree( 753 struct ntfsmount *ntmp, 754 cn_t *cfreep) 755 { 756 struct vnode *vp; 757 u_int8_t *tmp; 758 int j, error; 759 long cfree = 0; 760 size_t bmsize, i; 761 762 vp = ntmp->ntm_sysvn[NTFS_BITMAPINO]; 763 764 bmsize = VTOF(vp)->f_size; 765 766 tmp = (u_int8_t *) malloc(bmsize, M_TEMP, M_WAITOK); 767 768 error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL, 769 0, bmsize, tmp, NULL); 770 if (error) 771 goto out; 772 773 for(i=0;i<bmsize;i++) 774 for(j=0;j<8;j++) 775 if(~tmp[i] & (1 << j)) cfree++; 776 *cfreep = cfree; 777 778 out: 779 free(tmp, M_TEMP); 780 return(error); 781 } 782 783 static int 784 ntfs_statfs( 785 struct mount *mp, 786 struct statfs *sbp, 787 struct proc *p) 788 { 789 struct ntfsmount *ntmp = VFSTONTFS(mp); 790 u_int64_t mftallocated; 791 792 dprintf(("ntfs_statfs():\n")); 793 794 mftallocated = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_allocated; 795 796 #if defined(__FreeBSD__) 797 sbp->f_type = mp->mnt_vfc->vfc_typenum; 798 #elif defined(__NetBSD__) 799 sbp->f_type = 0; 800 #else 801 sbp->f_type = MOUNT_NTFS; 802 #endif 803 sbp->f_bsize = ntmp->ntm_bps; 804 sbp->f_iosize = ntmp->ntm_bps * ntmp->ntm_spc; 805 sbp->f_blocks = ntmp->ntm_bootfile.bf_spv; 806 sbp->f_bfree = sbp->f_bavail = ntfs_cntobn(ntmp->ntm_cfree); 807 sbp->f_ffree = sbp->f_bfree / ntmp->ntm_bpmftrec; 808 sbp->f_files = mftallocated / ntfs_bntob(ntmp->ntm_bpmftrec) + 809 sbp->f_ffree; 810 sbp->f_flags = mp->mnt_flag; 811 copy_statfs_info(sbp, mp); 812 return (0); 813 } 814 815 static int 816 ntfs_sync ( 817 struct mount *mp, 818 int waitfor, 819 struct ucred *cred, 820 struct proc *p) 821 { 822 /*dprintf(("ntfs_sync():\n"));*/ 823 return (0); 824 } 825 826 /*ARGSUSED*/ 827 static int 828 ntfs_fhtovp( 829 #if defined(__FreeBSD__) 830 struct mount *mp, 831 struct fid *fhp, 832 struct sockaddr *nam, 833 struct vnode **vpp, 834 int *exflagsp, 835 struct ucred **credanonp) 836 #elif defined(__NetBSD__) 837 struct mount *mp, 838 struct fid *fhp, 839 struct vnode **vpp) 840 #else 841 struct mount *mp, 842 struct fid *fhp, 843 struct mbuf *nam, 844 struct vnode **vpp, 845 int *exflagsp, 846 struct ucred **credanonp) 847 #endif 848 { 849 struct ntfid *ntfhp = (struct ntfid *)fhp; 850 int error; 851 852 ddprintf(("ntfs_fhtovp(): %s: %d\n", mp->mnt_stat.f_mntonname, 853 ntfhp->ntfid_ino)); 854 855 error = ntfs_vgetex(mp, ntfhp->ntfid_ino, ntfhp->ntfid_attr, NULL, 856 LK_EXCLUSIVE | LK_RETRY, 0, curproc, vpp); /* XXX */ 857 if (error != 0) { 858 *vpp = NULLVP; 859 return (error); 860 } 861 862 /* XXX as unlink/rmdir/mkdir/creat are not currently possible 863 * with NTFS, we don't need to check anything else for now */ 864 return (0); 865 } 866 867 static int 868 ntfs_vptofh( 869 struct vnode *vp, 870 struct fid *fhp) 871 { 872 struct ntnode *ntp; 873 struct ntfid *ntfhp; 874 struct fnode *fn; 875 876 ddprintf(("ntfs_fhtovp(): %s: %p\n", vp->v_mount->mnt_stat.f_mntonname, 877 vp)); 878 879 fn = VTOF(vp); 880 ntp = VTONT(vp); 881 ntfhp = (struct ntfid *)fhp; 882 ntfhp->ntfid_len = sizeof(struct ntfid); 883 ntfhp->ntfid_ino = ntp->i_number; 884 ntfhp->ntfid_attr = fn->f_attrtype; 885 #ifdef notyet 886 ntfhp->ntfid_gen = ntp->i_gen; 887 #endif 888 return (0); 889 } 890 891 int 892 ntfs_vgetex( 893 struct mount *mp, 894 ino_t ino, 895 u_int32_t attrtype, 896 char *attrname, 897 u_long lkflags, 898 u_long flags, 899 struct proc *p, 900 struct vnode **vpp) 901 { 902 int error; 903 struct ntfsmount *ntmp; 904 struct ntnode *ip; 905 struct fnode *fp; 906 struct vnode *vp; 907 enum vtype f_type; 908 909 dprintf(("ntfs_vgetex: ino: %d, attr: 0x%x:%s, lkf: 0x%lx, f: 0x%lx\n", 910 ino, attrtype, attrname?attrname:"", (u_long)lkflags, 911 (u_long)flags )); 912 913 ntmp = VFSTONTFS(mp); 914 *vpp = NULL; 915 916 /* Get ntnode */ 917 error = ntfs_ntlookup(ntmp, ino, &ip); 918 if (error) { 919 printf("ntfs_vget: ntfs_ntget failed\n"); 920 return (error); 921 } 922 923 /* It may be not initialized fully, so force load it */ 924 if (!(flags & VG_DONTLOADIN) && !(ip->i_flag & IN_LOADED)) { 925 error = ntfs_loadntnode(ntmp, ip); 926 if(error) { 927 printf("ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO: %d\n", 928 ip->i_number); 929 ntfs_ntput(ip); 930 return (error); 931 } 932 } 933 934 error = ntfs_fget(ntmp, ip, attrtype, attrname, &fp); 935 if (error) { 936 printf("ntfs_vget: ntfs_fget failed\n"); 937 ntfs_ntput(ip); 938 return (error); 939 } 940 941 if (!(flags & VG_DONTVALIDFN) && !(fp->f_flag & FN_VALID)) { 942 if ((ip->i_frflag & NTFS_FRFLAG_DIR) && 943 (fp->f_attrtype == NTFS_A_DATA && fp->f_attrname == NULL)) { 944 f_type = VDIR; 945 } else if (flags & VG_EXT) { 946 f_type = VNON; 947 fp->f_size = fp->f_allocated = 0; 948 } else { 949 f_type = VREG; 950 951 error = ntfs_filesize(ntmp, fp, 952 &fp->f_size, &fp->f_allocated); 953 if (error) { 954 ntfs_ntput(ip); 955 return (error); 956 } 957 } 958 959 fp->f_flag |= FN_VALID; 960 } 961 962 /* 963 * We may be calling vget() now. To avoid potential deadlock, we need 964 * to release ntnode lock, since due to locking order vnode 965 * lock has to be acquired first. 966 * ntfs_fget() bumped ntnode usecount, so ntnode won't be recycled 967 * prematurely. 968 */ 969 ntfs_ntput(ip); 970 971 if (FTOV(fp)) { 972 /* vget() returns error if the vnode has been recycled */ 973 if (vget(FTOV(fp), lkflags) == 0) { 974 *vpp = FTOV(fp); 975 return (0); 976 } 977 } 978 979 error = getnewvnode(VT_NTFS, ntmp->ntm_mountp, ntfs_vnodeop_p, &vp); 980 if(error) { 981 ntfs_frele(fp); 982 ntfs_ntput(ip); 983 return (error); 984 } 985 dprintf(("ntfs_vget: vnode: %p for ntnode: %d\n", vp,ino)); 986 987 #ifdef __FreeBSD__ 988 lockinit(&fp->f_lock, PINOD, "fnode", 0, 0); 989 #endif 990 fp->f_vp = vp; 991 vp->v_data = fp; 992 vp->v_type = f_type; 993 994 if (ino == NTFS_ROOTINO) 995 vp->v_flag |= VROOT; 996 997 if (lkflags & LK_TYPE_MASK) { 998 error = vn_lock(vp, lkflags); 999 if (error) { 1000 vput(vp); 1001 return (error); 1002 } 1003 } 1004 1005 genfs_node_init(vp, &ntfs_genfsops); 1006 VREF(ip->i_devvp); 1007 *vpp = vp; 1008 return (0); 1009 } 1010 1011 static int 1012 ntfs_vget( 1013 struct mount *mp, 1014 ino_t ino, 1015 struct vnode **vpp) 1016 { 1017 return ntfs_vgetex(mp, ino, NTFS_A_DATA, NULL, 1018 LK_EXCLUSIVE | LK_RETRY, 0, curproc, vpp); /* XXX */ 1019 } 1020 1021 #if defined(__FreeBSD__) 1022 static struct vfsops ntfs_vfsops = { 1023 ntfs_mount, 1024 ntfs_start, 1025 ntfs_unmount, 1026 ntfs_root, 1027 ntfs_quotactl, 1028 ntfs_statfs, 1029 ntfs_sync, 1030 ntfs_vget, 1031 ntfs_fhtovp, 1032 ntfs_vptofh, 1033 ntfs_init, 1034 NULL 1035 }; 1036 VFS_SET(ntfs_vfsops, ntfs, 0); 1037 #elif defined(__NetBSD__) 1038 extern const struct vnodeopv_desc ntfs_vnodeop_opv_desc; 1039 1040 const struct vnodeopv_desc * const ntfs_vnodeopv_descs[] = { 1041 &ntfs_vnodeop_opv_desc, 1042 NULL, 1043 }; 1044 1045 struct vfsops ntfs_vfsops = { 1046 MOUNT_NTFS, 1047 ntfs_mount, 1048 ntfs_start, 1049 ntfs_unmount, 1050 ntfs_root, 1051 ntfs_quotactl, 1052 ntfs_statfs, 1053 ntfs_sync, 1054 ntfs_vget, 1055 ntfs_fhtovp, 1056 ntfs_vptofh, 1057 ntfs_init, 1058 ntfs_reinit, 1059 ntfs_done, 1060 ntfs_sysctl, 1061 ntfs_mountroot, 1062 ntfs_checkexp, 1063 ntfs_vnodeopv_descs, 1064 }; 1065 #endif 1066