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 1.48 2008/09/17 21:44:25 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 vop_ops ntfs_vnode_vops; 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 struct iconv_functions *ntfs_iconv = NULL; 83 84 static int ntfs_root (struct mount *, struct vnode **); 85 static int ntfs_statfs (struct mount *, struct statfs *, struct ucred *cred); 86 static int ntfs_unmount (struct mount *, int); 87 static int ntfs_vget (struct mount *mp, struct vnode *dvp, 88 ino_t ino, struct vnode **vpp); 89 static int ntfs_mountfs (struct vnode *, struct mount *, 90 struct ntfs_args *, struct ucred *); 91 static int ntfs_vptofh (struct vnode *, struct fid *); 92 static int ntfs_fhtovp (struct mount *, struct vnode *rootvp, 93 struct fid *, struct vnode **); 94 95 #if !defined (__DragonFly__) 96 static int ntfs_quotactl (struct mount *, int, uid_t, caddr_t, 97 struct thread *); 98 static int ntfs_start (struct mount *, int, struct thread *); 99 static int ntfs_sync (struct mount *, int, struct ucred *, 100 struct thread *); 101 #endif 102 103 #if defined(__DragonFly__) 104 struct sockaddr; 105 static int ntfs_mount (struct mount *, char *, caddr_t, struct ucred *); 106 static int ntfs_init (struct vfsconf *); 107 static int ntfs_checkexp (struct mount *, struct sockaddr *, 108 int *, struct ucred **); 109 #elif defined(__NetBSD__) 110 static int ntfs_mount (struct mount *, const char *, void *, 111 struct nameidata *, struct thread *); 112 static void ntfs_init (void); 113 static int ntfs_mountroot (void); 114 static int ntfs_sysctl (int *, u_int, void *, size_t *, void *, 115 size_t, struct thread *); 116 static int ntfs_checkexp (struct mount *, struct mbuf *, 117 int *, struct ucred **); 118 #endif 119 120 /* 121 * Verify a remote client has export rights and return these rights via. 122 * exflagsp and credanonp. 123 */ 124 static int 125 ntfs_checkexp(struct mount *mp, 126 #if defined(__DragonFly__) 127 struct sockaddr *nam, 128 #else /* defined(__NetBSD__) */ 129 struct mbuf *nam, 130 #endif 131 int *exflagsp, struct ucred **credanonp) 132 { 133 struct netcred *np; 134 struct ntfsmount *ntm = VFSTONTFS(mp); 135 136 /* 137 * Get the export permission structure for this <mp, client> tuple. 138 */ 139 np = vfs_export_lookup(mp, &ntm->ntm_export, nam); 140 if (np == NULL) 141 return (EACCES); 142 143 *exflagsp = np->netc_exflags; 144 *credanonp = &np->netc_anon; 145 return (0); 146 } 147 148 #if defined(__NetBSD__) 149 /*ARGSUSED*/ 150 static int 151 ntfs_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp, 152 size_t newlen, struct thread *td) 153 { 154 return (EINVAL); 155 } 156 157 static int 158 ntfs_mountroot(void) 159 { 160 struct mount *mp; 161 struct vnode *rootvp; 162 struct thread *td = curthread; /* XXX */ 163 struct ntfs_args args; 164 lwkt_tokref ilock; 165 int error; 166 167 if (root_device->dv_class != DV_DISK) 168 return (ENODEV); 169 170 /* 171 * Get vnodes for rootdev. 172 */ 173 if (bdevvp(rootdev, &rootvp)) 174 panic("ntfs_mountroot: can't setup rootvp"); 175 176 if ((error = vfs_rootmountalloc(MOUNT_NTFS, "root_device", &mp))) { 177 vrele(rootvp); 178 return (error); 179 } 180 181 args.flag = 0; 182 args.uid = 0; 183 args.gid = 0; 184 args.mode = 0777; 185 186 if ((error = ntfs_mountfs(rootvp, mp, &args, proc0.p_ucred)) != 0) { 187 mp->mnt_op->vfs_refcount--; 188 vfs_unbusy(mp); 189 kfree(mp, M_MOUNT); 190 vrele(rootvp); 191 return (error); 192 } 193 mountlist_insert(mp, MNTINS_LAST); 194 (void)ntfs_statfs(mp, &mp->mnt_stat, proc0.p_ucred); 195 vfs_unbusy(mp); 196 return (0); 197 } 198 199 static void 200 ntfs_init(void) 201 { 202 ntfs_nthashinit(); 203 ntfs_toupper_init(); 204 } 205 206 #elif defined(__DragonFly__) 207 208 static int 209 ntfs_init(struct vfsconf *vcp) 210 { 211 ntfs_nthashinit(); 212 ntfs_toupper_init(); 213 return 0; 214 } 215 216 #endif /* NetBSD */ 217 218 static int 219 ntfs_mount(struct mount *mp, char *path, caddr_t data, struct ucred *cred) 220 { 221 size_t size; 222 int error; 223 struct vnode *devvp; 224 struct ntfs_args args; 225 struct nlookupdata nd; 226 struct vnode *rootvp; 227 228 error = 0; 229 #ifdef __DragonFly__ 230 /* 231 * Use NULL path to flag a root mount 232 */ 233 if( path == NULL) { 234 /* 235 *** 236 * Mounting root file system 237 *** 238 */ 239 240 /* Get vnode for root device*/ 241 if( bdevvp( rootdev, &rootvp)) 242 panic("ffs_mountroot: can't setup bdevvp for root"); 243 244 /* 245 * FS specific handling 246 */ 247 mp->mnt_flag |= MNT_RDONLY; /* XXX globally applicable?*/ 248 249 /* 250 * Attempt mount 251 */ 252 if( ( error = ntfs_mountfs(rootvp, mp, &args, cred)) != 0) { 253 /* fs specific cleanup (if any)*/ 254 goto error_1; 255 } 256 257 goto dostatfs; /* success*/ 258 259 } 260 #endif /* FreeBSD */ 261 262 /* 263 *** 264 * Mounting non-root file system or updating a file system 265 *** 266 */ 267 268 /* copy in user arguments*/ 269 error = copyin(data, (caddr_t)&args, sizeof (struct ntfs_args)); 270 if (error) 271 goto error_1; /* can't get arguments*/ 272 273 /* 274 * If updating, check whether changing from read-only to 275 * read/write; if there is no device name, that's all we do. 276 */ 277 if (mp->mnt_flag & MNT_UPDATE) { 278 /* if not updating name...*/ 279 if (args.fspec == 0) { 280 /* 281 * Process export requests. Jumping to "success" 282 * will return the vfs_export() error code. 283 */ 284 struct ntfsmount *ntm = VFSTONTFS(mp); 285 error = vfs_export(mp, &ntm->ntm_export, &args.export); 286 goto success; 287 } 288 289 kprintf("ntfs_mount(): MNT_UPDATE not supported\n"); 290 error = EINVAL; 291 goto error_1; 292 } 293 294 /* 295 * Not an update, or updating the name: look up the name 296 * and verify that it refers to a sensible block device. 297 */ 298 devvp = NULL; 299 error = nlookup_init(&nd, args.fspec, UIO_USERSPACE, NLC_FOLLOW); 300 if (error == 0) 301 error = nlookup(&nd); 302 if (error == 0) 303 error = cache_vref(&nd.nl_nch, nd.nl_cred, &devvp); 304 nlookup_done(&nd); 305 if (error) 306 goto error_1; 307 308 #if defined(__DragonFly__) 309 if (!vn_isdisk(devvp, &error)) 310 goto error_2; 311 #else 312 if (devvp->v_type != VBLK) { 313 error = ENOTBLK; 314 goto error_2; 315 } 316 if (devvp->v_umajor >= nblkdev) { 317 error = ENXIO; 318 goto error_2; 319 } 320 #endif 321 if (mp->mnt_flag & MNT_UPDATE) { 322 #if 0 323 /* 324 ******************** 325 * UPDATE 326 ******************** 327 */ 328 329 if (devvp != ntmp->um_devvp) 330 error = EINVAL; /* needs translation */ 331 else 332 vrele(devvp); 333 /* 334 * Update device name only on success 335 */ 336 if( !error) { 337 /* Save "mounted from" info for mount point (NULL pad)*/ 338 copyinstr( args.fspec, 339 mp->mnt_stat.f_mntfromname, 340 MNAMELEN - 1, 341 &size); 342 bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size); 343 } 344 #endif 345 } else { 346 /* 347 ******************** 348 * NEW MOUNT 349 ******************** 350 */ 351 352 /* Save "mounted from" info for mount point (NULL pad)*/ 353 copyinstr( args.fspec, /* device name*/ 354 mp->mnt_stat.f_mntfromname, /* save area*/ 355 MNAMELEN - 1, /* max size*/ 356 &size); /* real size*/ 357 bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size); 358 359 error = ntfs_mountfs(devvp, mp, &args, cred); 360 } 361 if (error) { 362 goto error_2; 363 } 364 365 #ifdef __DragonFly__ 366 dostatfs: 367 #endif 368 /* 369 * Initialize FS stat information in mount struct; uses 370 * mp->mnt_stat.f_mntfromname. 371 * 372 * This code is common to root and non-root mounts 373 */ 374 (void)VFS_STATFS(mp, &mp->mnt_stat, cred); 375 376 goto success; 377 378 379 error_2: /* error with devvp held*/ 380 381 /* release devvp before failing*/ 382 vrele(devvp); 383 384 error_1: /* no state to back out*/ 385 386 success: 387 return(error); 388 } 389 390 /* 391 * Common code for mount and mountroot 392 */ 393 int 394 ntfs_mountfs(struct vnode *devvp, struct mount *mp, struct ntfs_args *argsp, 395 struct ucred *cred) 396 { 397 struct buf *bp; 398 struct ntfsmount *ntmp; 399 cdev_t dev; 400 int error, ronly, ncount, i; 401 struct vnode *vp; 402 char cs_local[ICONV_CSNMAXLEN]; 403 char cs_ntfs[ICONV_CSNMAXLEN]; 404 405 /* 406 * Disallow multiple mounts of the same device. 407 * Disallow mounting of a device that is currently in use 408 * (except for root, which might share swap device for miniroot). 409 * Flush out any old buffers remaining from a previous use. 410 */ 411 error = vfs_mountedon(devvp); 412 if (error) 413 return (error); 414 ncount = vcount(devvp); 415 #if defined(__DragonFly__) 416 if (devvp->v_object) 417 ncount -= 1; 418 #endif 419 if (ncount > 1) 420 return (EBUSY); 421 #if defined(__DragonFly__) 422 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY); 423 error = vinvalbuf(devvp, V_SAVE, 0, 0); 424 VOP__UNLOCK(devvp, 0); 425 #else 426 error = vinvalbuf(devvp, V_SAVE, 0, 0); 427 #endif 428 if (error) 429 return (error); 430 431 ronly = (mp->mnt_flag & MNT_RDONLY) != 0; 432 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY); 433 error = VOP_OPEN(devvp, ronly ? FREAD : FREAD|FWRITE, FSCRED, NULL); 434 VOP__UNLOCK(devvp, 0); 435 if (error) 436 return (error); 437 dev = devvp->v_rdev; 438 439 bp = NULL; 440 441 error = bread(devvp, BBLOCK, BBSIZE, &bp); 442 if (error) 443 goto out; 444 ntmp = kmalloc(sizeof *ntmp, M_NTFSMNT, M_WAITOK | M_ZERO); 445 bcopy( bp->b_data, &ntmp->ntm_bootfile, sizeof(struct bootfile) ); 446 brelse( bp ); 447 bp = NULL; 448 449 if (strncmp(ntmp->ntm_bootfile.bf_sysid, NTFS_BBID, NTFS_BBIDLEN)) { 450 error = EINVAL; 451 dprintf(("ntfs_mountfs: invalid boot block\n")); 452 goto out; 453 } 454 455 { 456 int8_t cpr = ntmp->ntm_mftrecsz; 457 if( cpr > 0 ) 458 ntmp->ntm_bpmftrec = ntmp->ntm_spc * cpr; 459 else 460 ntmp->ntm_bpmftrec = (1 << (-cpr)) / ntmp->ntm_bps; 461 } 462 dprintf(("ntfs_mountfs(): bps: %d, spc: %d, media: %x, mftrecsz: %d (%d sects)\n", 463 ntmp->ntm_bps,ntmp->ntm_spc,ntmp->ntm_bootfile.bf_media, 464 ntmp->ntm_mftrecsz,ntmp->ntm_bpmftrec)); 465 dprintf(("ntfs_mountfs(): mftcn: 0x%x|0x%x\n", 466 (u_int32_t)ntmp->ntm_mftcn,(u_int32_t)ntmp->ntm_mftmirrcn)); 467 468 ntmp->ntm_mountp = mp; 469 ntmp->ntm_dev = dev; 470 ntmp->ntm_devvp = devvp; 471 ntmp->ntm_uid = argsp->uid; 472 ntmp->ntm_gid = argsp->gid; 473 ntmp->ntm_mode = argsp->mode; 474 ntmp->ntm_flag = argsp->flag; 475 476 if (argsp->flag & NTFS_MFLAG_KICONV && ntfs_iconv) { 477 bcopy(argsp->cs_local, cs_local, sizeof(cs_local)); 478 bcopy(argsp->cs_ntfs, cs_ntfs, sizeof(cs_ntfs)); 479 ntfs_82u_init(ntmp, cs_local, cs_ntfs); 480 ntfs_u28_init(ntmp, NULL, cs_local, cs_ntfs); 481 } else { 482 ntfs_82u_init(ntmp, NULL, NULL); 483 ntfs_u28_init(ntmp, ntmp->ntm_82u, NULL, NULL); 484 } 485 486 mp->mnt_data = (qaddr_t)ntmp; 487 488 dprintf(("ntfs_mountfs(): case-%s,%s uid: %d, gid: %d, mode: %o\n", 489 (ntmp->ntm_flag & NTFS_MFLAG_CASEINS)?"insens.":"sens.", 490 (ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES)?" allnames,":"", 491 ntmp->ntm_uid, ntmp->ntm_gid, ntmp->ntm_mode)); 492 493 vfs_add_vnodeops(mp, &ntfs_vnode_vops, &mp->mnt_vn_norm_ops); 494 495 /* 496 * We read in some system nodes to do not allow 497 * reclaim them and to have everytime access to them. 498 */ 499 { 500 int pi[3] = { NTFS_MFTINO, NTFS_ROOTINO, NTFS_BITMAPINO }; 501 for (i=0; i<3; i++) { 502 error = VFS_VGET(mp, NULL, 503 pi[i], &(ntmp->ntm_sysvn[pi[i]])); 504 if(error) 505 goto out1; 506 ntmp->ntm_sysvn[pi[i]]->v_flag |= VSYSTEM; 507 vref(ntmp->ntm_sysvn[pi[i]]); 508 vput(ntmp->ntm_sysvn[pi[i]]); 509 } 510 } 511 512 /* read the Unicode lowercase --> uppercase translation table, 513 * if necessary */ 514 if ((error = ntfs_toupper_use(mp, ntmp))) 515 goto out1; 516 517 /* 518 * Scan $BitMap and count free clusters 519 */ 520 error = ntfs_calccfree(ntmp, &ntmp->ntm_cfree); 521 if(error) 522 goto out1; 523 524 /* 525 * Read and translate to internal format attribute 526 * definition file. 527 */ 528 { 529 int num,j; 530 struct attrdef ad; 531 532 /* Open $AttrDef */ 533 error = VFS_VGET(mp, NULL, NTFS_ATTRDEFINO, &vp); 534 if(error) 535 goto out1; 536 537 /* Count valid entries */ 538 for(num=0;;num++) { 539 error = ntfs_readattr(ntmp, VTONT(vp), 540 NTFS_A_DATA, NULL, 541 num * sizeof(ad), sizeof(ad), 542 &ad, NULL); 543 if (error) 544 goto out1; 545 if (ad.ad_name[0] == 0) 546 break; 547 } 548 549 /* Alloc memory for attribute definitions */ 550 MALLOC(ntmp->ntm_ad, struct ntvattrdef *, 551 num * sizeof(struct ntvattrdef), 552 M_NTFSMNT, M_WAITOK); 553 554 ntmp->ntm_adnum = num; 555 556 /* Read them and translate */ 557 for(i=0;i<num;i++){ 558 error = ntfs_readattr(ntmp, VTONT(vp), 559 NTFS_A_DATA, NULL, 560 i * sizeof(ad), sizeof(ad), 561 &ad, NULL); 562 if (error) 563 goto out1; 564 j = 0; 565 do { 566 ntmp->ntm_ad[i].ad_name[j] = ad.ad_name[j]; 567 } while(ad.ad_name[j++]); 568 ntmp->ntm_ad[i].ad_namelen = j - 1; 569 ntmp->ntm_ad[i].ad_type = ad.ad_type; 570 } 571 572 vput(vp); 573 } 574 575 #if defined(__DragonFly__) 576 mp->mnt_stat.f_fsid.val[0] = dev2udev(dev); 577 mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum; 578 #else 579 mp->mnt_stat.f_fsid.val[0] = dev; 580 mp->mnt_stat.f_fsid.val[1] = makefstype(MOUNT_NTFS); 581 #endif 582 mp->mnt_maxsymlinklen = 0; 583 mp->mnt_flag |= MNT_LOCAL; 584 dev->si_mountpoint = mp; 585 586 return (0); 587 588 out1: 589 for(i=0;i<NTFS_SYSNODESNUM;i++) 590 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 591 592 if (vflush(mp, 0, 0)) 593 dprintf(("ntfs_mountfs: vflush failed\n")); 594 595 out: 596 dev->si_mountpoint = NULL; 597 if (bp) 598 brelse(bp); 599 600 #if defined __NetBSD__ 601 /* lock the device vnode before calling VOP_CLOSE() */ 602 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY); 603 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE); 604 VOP__UNLOCK(devvp, 0); 605 #else 606 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE); 607 #endif 608 609 return (error); 610 } 611 612 #if !defined(__DragonFly__) 613 static int 614 ntfs_start(struct mount *mp, int flags, struct thread *td) 615 { 616 return (0); 617 } 618 #endif 619 620 static int 621 ntfs_unmount(struct mount *mp, int mntflags) 622 { 623 struct ntfsmount *ntmp; 624 int error, ronly, flags, i; 625 626 dprintf(("ntfs_unmount: unmounting...\n")); 627 ntmp = VFSTONTFS(mp); 628 629 ronly = (mp->mnt_flag & MNT_RDONLY) != 0; 630 flags = 0; 631 if(mntflags & MNT_FORCE) 632 flags |= FORCECLOSE; 633 634 dprintf(("ntfs_unmount: vflushing...\n")); 635 error = vflush(mp, 0, flags | SKIPSYSTEM); 636 if (error) { 637 kprintf("ntfs_unmount: vflush failed: %d\n",error); 638 return (error); 639 } 640 641 /* Check if only system vnodes are rest */ 642 for(i=0;i<NTFS_SYSNODESNUM;i++) 643 if((ntmp->ntm_sysvn[i]) && 644 (ntmp->ntm_sysvn[i]->v_sysref.refcnt > 1)) return (EBUSY); 645 646 /* Dereference all system vnodes */ 647 for(i=0;i<NTFS_SYSNODESNUM;i++) 648 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 649 650 /* vflush system vnodes */ 651 error = vflush(mp, 0, flags); 652 if (error) 653 kprintf("ntfs_unmount: vflush failed(sysnodes): %d\n",error); 654 655 /* Check if the type of device node isn't VBAD before 656 * touching v_cdevinfo. If the device vnode is revoked, the 657 * field is NULL and touching it causes null pointer derefercence. 658 */ 659 if (ntmp->ntm_devvp->v_type != VBAD) 660 ntmp->ntm_devvp->v_rdev->si_mountpoint = NULL; 661 662 vinvalbuf(ntmp->ntm_devvp, V_SAVE, 0, 0); 663 664 error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE); 665 666 vrele(ntmp->ntm_devvp); 667 668 /* free the toupper table, if this has been last mounted ntfs volume */ 669 ntfs_toupper_unuse(); 670 671 dprintf(("ntfs_umount: freeing memory...\n")); 672 ntfs_u28_uninit(ntmp); 673 ntfs_82u_uninit(ntmp); 674 mp->mnt_data = (qaddr_t)0; 675 mp->mnt_flag &= ~MNT_LOCAL; 676 FREE(ntmp->ntm_ad, M_NTFSMNT); 677 FREE(ntmp, M_NTFSMNT); 678 return (error); 679 } 680 681 static int 682 ntfs_root(struct mount *mp, struct vnode **vpp) 683 { 684 struct vnode *nvp; 685 int error = 0; 686 687 dprintf(("ntfs_root(): sysvn: %p\n", 688 VFSTONTFS(mp)->ntm_sysvn[NTFS_ROOTINO])); 689 error = VFS_VGET(mp, NULL, (ino_t)NTFS_ROOTINO, &nvp); 690 if(error) { 691 kprintf("ntfs_root: VFS_VGET failed: %d\n",error); 692 return (error); 693 } 694 695 *vpp = nvp; 696 return (0); 697 } 698 699 #if !defined(__DragonFly__) 700 static int 701 ntfs_quotactl(struct mount *mp, int cmds, uid_t uid, caddr_t arg, 702 struct thread *td) 703 { 704 kprintf("\nntfs_quotactl():\n"); 705 return EOPNOTSUPP; 706 } 707 #endif 708 709 int 710 ntfs_calccfree(struct ntfsmount *ntmp, cn_t *cfreep) 711 { 712 struct vnode *vp; 713 u_int8_t *tmp; 714 int j, error; 715 long cfree = 0; 716 size_t bmsize, i; 717 718 vp = ntmp->ntm_sysvn[NTFS_BITMAPINO]; 719 720 bmsize = VTOF(vp)->f_size; 721 722 MALLOC(tmp, u_int8_t *, bmsize, M_TEMP, M_WAITOK); 723 724 error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL, 725 0, bmsize, tmp, NULL); 726 if (error) 727 goto out; 728 729 for(i=0;i<bmsize;i++) 730 for(j=0;j<8;j++) 731 if(~tmp[i] & (1 << j)) cfree++; 732 *cfreep = cfree; 733 734 out: 735 FREE(tmp, M_TEMP); 736 return(error); 737 } 738 739 static int 740 ntfs_statfs(struct mount *mp, struct statfs *sbp, struct ucred *cred) 741 { 742 struct ntfsmount *ntmp = VFSTONTFS(mp); 743 u_int64_t mftsize,mftallocated; 744 745 dprintf(("ntfs_statfs():\n")); 746 747 mftsize = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_size; 748 mftallocated = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_allocated; 749 750 #if defined(__DragonFly__) 751 sbp->f_type = mp->mnt_vfc->vfc_typenum; 752 #elif defined(__NetBSD__) 753 sbp->f_type = 0; 754 #else 755 sbp->f_type = MOUNT_NTFS; 756 #endif 757 sbp->f_bsize = ntmp->ntm_bps; 758 sbp->f_iosize = ntmp->ntm_bps * ntmp->ntm_spc; 759 sbp->f_blocks = ntmp->ntm_bootfile.bf_spv; 760 sbp->f_bfree = sbp->f_bavail = ntfs_cntobn(ntmp->ntm_cfree); 761 sbp->f_ffree = sbp->f_bfree / ntmp->ntm_bpmftrec; 762 sbp->f_files = mftallocated / ntfs_bntob(ntmp->ntm_bpmftrec) + 763 sbp->f_ffree; 764 if (sbp != &mp->mnt_stat) { 765 bcopy((caddr_t)mp->mnt_stat.f_mntfromname, 766 (caddr_t)&sbp->f_mntfromname[0], MNAMELEN); 767 } 768 sbp->f_flags = mp->mnt_flag; 769 #ifdef __NetBSD__ 770 strncpy(sbp->f_fstypename, mp->mnt_op->vfs_name, MFSNAMELEN); 771 #endif 772 773 return (0); 774 } 775 776 #if !defined(__DragonFly__) 777 static int 778 ntfs_sync(struct mount *mp, int waitfor, struct ucred *cred, struct thread *td) 779 { 780 /*dprintf(("ntfs_sync():\n"));*/ 781 return (0); 782 } 783 #endif 784 785 /*ARGSUSED*/ 786 static int 787 ntfs_fhtovp(struct mount *mp, struct vnode *rootvp, 788 struct fid *fhp, struct vnode **vpp) 789 { 790 struct vnode *nvp; 791 struct ntfid *ntfhp = (struct ntfid *)fhp; 792 int error; 793 794 ddprintf(("ntfs_fhtovp(): %d\n", ntfhp->ntfid_ino)); 795 796 if ((error = VFS_VGET(mp, NULL, ntfhp->ntfid_ino, &nvp)) != 0) { 797 *vpp = NULLVP; 798 return (error); 799 } 800 /* XXX as unlink/rmdir/mkdir/creat are not currently possible 801 * with NTFS, we don't need to check anything else for now */ 802 *vpp = nvp; 803 804 return (0); 805 } 806 807 static int 808 ntfs_vptofh(struct vnode *vp, struct fid *fhp) 809 { 810 struct ntnode *ntp; 811 struct ntfid *ntfhp; 812 813 ddprintf(("ntfs_fhtovp(): %p\n", vp)); 814 815 ntp = VTONT(vp); 816 ntfhp = (struct ntfid *)fhp; 817 ntfhp->ntfid_len = sizeof(struct ntfid); 818 ntfhp->ntfid_ino = ntp->i_number; 819 /* ntfhp->ntfid_gen = ntp->i_gen; */ 820 return (0); 821 } 822 823 int 824 ntfs_vgetex(struct mount *mp, ino_t ino, u_int32_t attrtype, char *attrname, 825 u_long lkflags, u_long flags, struct thread *td, 826 struct vnode **vpp) 827 { 828 int error; 829 struct ntfsmount *ntmp; 830 struct ntnode *ip; 831 struct fnode *fp; 832 struct vnode *vp; 833 enum vtype f_type; 834 835 dprintf(("ntfs_vgetex: ino: %d, attr: 0x%x:%s, lkf: 0x%lx, f: 0x%lx\n", 836 ino, attrtype, attrname?attrname:"", (u_long)lkflags, 837 (u_long)flags )); 838 839 ntmp = VFSTONTFS(mp); 840 *vpp = NULL; 841 842 /* Get ntnode */ 843 error = ntfs_ntlookup(ntmp, ino, &ip); 844 if (error) { 845 kprintf("ntfs_vget: ntfs_ntget failed\n"); 846 return (error); 847 } 848 849 /* It may be not initialized fully, so force load it */ 850 if (!(flags & VG_DONTLOADIN) && !(ip->i_flag & IN_LOADED)) { 851 error = ntfs_loadntnode(ntmp, ip); 852 if(error) { 853 kprintf("ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO: %"PRId64"\n", 854 ip->i_number); 855 ntfs_ntput(ip); 856 return (error); 857 } 858 } 859 860 error = ntfs_fget(ntmp, ip, attrtype, attrname, &fp); 861 if (error) { 862 kprintf("ntfs_vget: ntfs_fget failed\n"); 863 ntfs_ntput(ip); 864 return (error); 865 } 866 867 f_type = VNON; 868 if (!(flags & VG_DONTVALIDFN) && !(fp->f_flag & FN_VALID)) { 869 if ((ip->i_frflag & NTFS_FRFLAG_DIR) && 870 (fp->f_attrtype == NTFS_A_DATA && fp->f_attrname == NULL)) { 871 f_type = VDIR; 872 } else if (flags & VG_EXT) { 873 f_type = VNON; 874 fp->f_size = fp->f_allocated = 0; 875 } else { 876 f_type = VREG; 877 878 error = ntfs_filesize(ntmp, fp, 879 &fp->f_size, &fp->f_allocated); 880 if (error) { 881 ntfs_ntput(ip); 882 return (error); 883 } 884 } 885 886 fp->f_flag |= FN_VALID; 887 } 888 889 if (FTOV(fp)) { 890 VGET(FTOV(fp), lkflags); 891 *vpp = FTOV(fp); 892 ntfs_ntput(ip); 893 return (0); 894 } 895 896 error = getnewvnode(VT_NTFS, ntmp->ntm_mountp, &vp, VLKTIMEOUT, 0); 897 if(error) { 898 ntfs_frele(fp); 899 ntfs_ntput(ip); 900 return (error); 901 } 902 dprintf(("ntfs_vget: vnode: %p for ntnode: %d\n", vp,ino)); 903 904 fp->f_vp = vp; 905 vp->v_data = fp; 906 vp->v_type = f_type; 907 908 if (ino == NTFS_ROOTINO) 909 vp->v_flag |= VROOT; 910 911 /* 912 * Normal files use the buffer cache 913 */ 914 if (f_type == VREG) 915 vinitvmio(vp, fp->f_size); 916 917 ntfs_ntput(ip); 918 919 KKASSERT(lkflags & LK_TYPE_MASK); 920 /* XXX leave vnode locked exclusively from getnewvnode */ 921 *vpp = vp; 922 return (0); 923 924 } 925 926 static int 927 ntfs_vget(struct mount *mp, struct vnode *dvp, ino_t ino, struct vnode **vpp) 928 { 929 return ntfs_vgetex(mp, ino, NTFS_A_DATA, NULL, 930 LK_EXCLUSIVE | LK_RETRY, 0, curthread, vpp); 931 } 932 933 #if defined(__DragonFly__) 934 static struct vfsops ntfs_vfsops = { 935 .vfs_mount = ntfs_mount, 936 .vfs_unmount = ntfs_unmount, 937 .vfs_root = ntfs_root, 938 .vfs_statfs = ntfs_statfs, 939 .vfs_sync = vfs_stdsync, 940 .vfs_vget = ntfs_vget, 941 .vfs_fhtovp = ntfs_fhtovp, 942 .vfs_checkexp = ntfs_checkexp, 943 .vfs_vptofh = ntfs_vptofh, 944 .vfs_init = ntfs_init, 945 .vfs_uninit = ntfs_nthash_uninit /* see ntfs_ihash.c */ 946 }; 947 VFS_SET(ntfs_vfsops, ntfs, 0); 948 MODULE_VERSION(ntfs, 1); 949 #elif defined(__NetBSD__) 950 extern struct vnodeopv_desc ntfs_vnodeop_opv_desc; 951 952 struct vnodeopv_desc *ntfs_vnodeopv_descs[] = { 953 &ntfs_vnodeop_opv_desc, 954 NULL, 955 }; 956 957 struct vfsops ntfs_vfsops = { 958 MOUNT_NTFS, 959 ntfs_mount, 960 ntfs_start, 961 ntfs_unmount, 962 ntfs_root, 963 ntfs_quotactl, 964 ntfs_statfs, 965 ntfs_sync, 966 ntfs_vget, 967 ntfs_fhtovp, 968 ntfs_vptofh, 969 ntfs_init, 970 ntfs_sysctl, 971 ntfs_mountroot, 972 ntfs_checkexp, 973 ntfs_vnodeopv_descs, 974 }; 975 #else /* !NetBSD && !FreeBSD */ 976 static struct vfsops ntfs_vfsops = { 977 ntfs_mount, 978 ntfs_start, 979 ntfs_unmount, 980 ntfs_root, 981 ntfs_quotactl, 982 ntfs_statfs, 983 ntfs_sync, 984 ntfs_vget, 985 ntfs_fhtovp, 986 ntfs_vptofh, 987 ntfs_init, 988 }; 989 VFS_SET(ntfs_vfsops, ntfs, MOUNT_NTFS, 0); 990 #endif 991 992 993