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 1.46 2007/05/09 00:53:35 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 static int ntfs_root (struct mount *, struct vnode **); 83 static int ntfs_statfs (struct mount *, struct statfs *, struct ucred *cred); 84 static int ntfs_unmount (struct mount *, int); 85 static int ntfs_vget (struct mount *mp, ino_t ino, struct vnode **vpp); 86 static int ntfs_mountfs (struct vnode *, struct mount *, 87 struct ntfs_args *, struct ucred *); 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, struct ucred *); 103 static int ntfs_init (struct vfsconf *); 104 static int ntfs_checkexp (struct mount *, struct sockaddr *, 105 int *, struct ucred **); 106 #elif defined(__NetBSD__) 107 static int ntfs_mount (struct mount *, const char *, void *, 108 struct nameidata *, struct thread *); 109 static void ntfs_init (void); 110 static int ntfs_mountroot (void); 111 static int ntfs_sysctl (int *, u_int, void *, size_t *, void *, 112 size_t, struct thread *); 113 static int ntfs_checkexp (struct mount *, struct mbuf *, 114 int *, struct ucred **); 115 #endif 116 117 /* 118 * Verify a remote client has export rights and return these rights via. 119 * exflagsp and credanonp. 120 */ 121 static int 122 ntfs_checkexp(struct mount *mp, 123 #if defined(__DragonFly__) 124 struct sockaddr *nam, 125 #else /* defined(__NetBSD__) */ 126 struct mbuf *nam, 127 #endif 128 int *exflagsp, struct ucred **credanonp) 129 { 130 struct netcred *np; 131 struct ntfsmount *ntm = VFSTONTFS(mp); 132 133 /* 134 * Get the export permission structure for this <mp, client> tuple. 135 */ 136 np = vfs_export_lookup(mp, &ntm->ntm_export, nam); 137 if (np == NULL) 138 return (EACCES); 139 140 *exflagsp = np->netc_exflags; 141 *credanonp = &np->netc_anon; 142 return (0); 143 } 144 145 #if defined(__NetBSD__) 146 /*ARGSUSED*/ 147 static int 148 ntfs_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp, 149 size_t newlen, struct thread *td) 150 { 151 return (EINVAL); 152 } 153 154 static int 155 ntfs_mountroot(void) 156 { 157 struct mount *mp; 158 struct vnode *rootvp; 159 struct thread *td = curthread; /* XXX */ 160 struct ntfs_args args; 161 lwkt_tokref ilock; 162 int error; 163 164 if (root_device->dv_class != DV_DISK) 165 return (ENODEV); 166 167 /* 168 * Get vnodes for rootdev. 169 */ 170 if (bdevvp(rootdev, &rootvp)) 171 panic("ntfs_mountroot: can't setup rootvp"); 172 173 if ((error = vfs_rootmountalloc(MOUNT_NTFS, "root_device", &mp))) { 174 vrele(rootvp); 175 return (error); 176 } 177 178 args.flag = 0; 179 args.uid = 0; 180 args.gid = 0; 181 args.mode = 0777; 182 183 if ((error = ntfs_mountfs(rootvp, mp, &args, proc0.p_ucred)) != 0) { 184 mp->mnt_op->vfs_refcount--; 185 vfs_unbusy(mp); 186 kfree(mp, M_MOUNT); 187 vrele(rootvp); 188 return (error); 189 } 190 mountlist_insert(mp, MNTINS_LAST); 191 (void)ntfs_statfs(mp, &mp->mnt_stat, proc0.p_ucred); 192 vfs_unbusy(mp); 193 return (0); 194 } 195 196 static void 197 ntfs_init(void) 198 { 199 ntfs_nthashinit(); 200 ntfs_toupper_init(); 201 } 202 203 #elif defined(__DragonFly__) 204 205 static int 206 ntfs_init(struct vfsconf *vcp) 207 { 208 ntfs_nthashinit(); 209 ntfs_toupper_init(); 210 return 0; 211 } 212 213 #endif /* NetBSD */ 214 215 static int 216 ntfs_mount(struct mount *mp, char *path, caddr_t data, struct ucred *cred) 217 { 218 size_t size; 219 int error; 220 struct vnode *devvp; 221 struct ntfs_args args; 222 struct nlookupdata nd; 223 struct vnode *rootvp; 224 225 error = 0; 226 #ifdef __DragonFly__ 227 /* 228 * Use NULL path to flag a root mount 229 */ 230 if( path == NULL) { 231 /* 232 *** 233 * Mounting root file system 234 *** 235 */ 236 237 /* Get vnode for root device*/ 238 if( bdevvp( rootdev, &rootvp)) 239 panic("ffs_mountroot: can't setup bdevvp for root"); 240 241 /* 242 * FS specific handling 243 */ 244 mp->mnt_flag |= MNT_RDONLY; /* XXX globally applicable?*/ 245 246 /* 247 * Attempt mount 248 */ 249 if( ( error = ntfs_mountfs(rootvp, mp, &args, cred)) != 0) { 250 /* fs specific cleanup (if any)*/ 251 goto error_1; 252 } 253 254 goto dostatfs; /* success*/ 255 256 } 257 #endif /* FreeBSD */ 258 259 /* 260 *** 261 * Mounting non-root file system or updating a file system 262 *** 263 */ 264 265 /* copy in user arguments*/ 266 error = copyin(data, (caddr_t)&args, sizeof (struct ntfs_args)); 267 if (error) 268 goto error_1; /* can't get arguments*/ 269 270 /* 271 * If updating, check whether changing from read-only to 272 * read/write; if there is no device name, that's all we do. 273 */ 274 if (mp->mnt_flag & MNT_UPDATE) { 275 /* if not updating name...*/ 276 if (args.fspec == 0) { 277 /* 278 * Process export requests. Jumping to "success" 279 * will return the vfs_export() error code. 280 */ 281 struct ntfsmount *ntm = VFSTONTFS(mp); 282 error = vfs_export(mp, &ntm->ntm_export, &args.export); 283 goto success; 284 } 285 286 kprintf("ntfs_mount(): MNT_UPDATE not supported\n"); 287 error = EINVAL; 288 goto error_1; 289 } 290 291 /* 292 * Not an update, or updating the name: look up the name 293 * and verify that it refers to a sensible block device. 294 */ 295 devvp = NULL; 296 error = nlookup_init(&nd, args.fspec, UIO_USERSPACE, NLC_FOLLOW); 297 if (error == 0) 298 error = nlookup(&nd); 299 if (error == 0) 300 error = cache_vref(&nd.nl_nch, nd.nl_cred, &devvp); 301 nlookup_done(&nd); 302 if (error) 303 goto error_1; 304 305 #if defined(__DragonFly__) 306 if (!vn_isdisk(devvp, &error)) 307 goto error_2; 308 #else 309 if (devvp->v_type != VBLK) { 310 error = ENOTBLK; 311 goto error_2; 312 } 313 if (devvp->v_umajor >= nblkdev) { 314 error = ENXIO; 315 goto error_2; 316 } 317 #endif 318 if (mp->mnt_flag & MNT_UPDATE) { 319 #if 0 320 /* 321 ******************** 322 * UPDATE 323 ******************** 324 */ 325 326 if (devvp != ntmp->um_devvp) 327 error = EINVAL; /* needs translation */ 328 else 329 vrele(devvp); 330 /* 331 * Update device name only on success 332 */ 333 if( !error) { 334 /* Save "mounted from" info for mount point (NULL pad)*/ 335 copyinstr( args.fspec, 336 mp->mnt_stat.f_mntfromname, 337 MNAMELEN - 1, 338 &size); 339 bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size); 340 } 341 #endif 342 } else { 343 /* 344 ******************** 345 * NEW MOUNT 346 ******************** 347 */ 348 349 /* Save "mounted from" info for mount point (NULL pad)*/ 350 copyinstr( args.fspec, /* device name*/ 351 mp->mnt_stat.f_mntfromname, /* save area*/ 352 MNAMELEN - 1, /* max size*/ 353 &size); /* real size*/ 354 bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size); 355 356 error = ntfs_mountfs(devvp, mp, &args, cred); 357 } 358 if (error) { 359 goto error_2; 360 } 361 362 #ifdef __DragonFly__ 363 dostatfs: 364 #endif 365 /* 366 * Initialize FS stat information in mount struct; uses 367 * mp->mnt_stat.f_mntfromname. 368 * 369 * This code is common to root and non-root mounts 370 */ 371 (void)VFS_STATFS(mp, &mp->mnt_stat, cred); 372 373 goto success; 374 375 376 error_2: /* error with devvp held*/ 377 378 /* release devvp before failing*/ 379 vrele(devvp); 380 381 error_1: /* no state to back out*/ 382 383 success: 384 return(error); 385 } 386 387 /* 388 * Common code for mount and mountroot 389 */ 390 int 391 ntfs_mountfs(struct vnode *devvp, struct mount *mp, struct ntfs_args *argsp, 392 struct ucred *cred) 393 { 394 struct buf *bp; 395 struct ntfsmount *ntmp; 396 cdev_t dev; 397 int error, ronly, ncount, i; 398 struct vnode *vp; 399 400 /* 401 * Disallow multiple mounts of the same device. 402 * Disallow mounting of a device that is currently in use 403 * (except for root, which might share swap device for miniroot). 404 * Flush out any old buffers remaining from a previous use. 405 */ 406 error = vfs_mountedon(devvp); 407 if (error) 408 return (error); 409 ncount = count_udev(devvp->v_umajor, devvp->v_uminor); 410 #if defined(__DragonFly__) 411 if (devvp->v_object) 412 ncount -= 1; 413 #endif 414 if (ncount > 1) 415 return (EBUSY); 416 #if defined(__DragonFly__) 417 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY); 418 error = vinvalbuf(devvp, V_SAVE, 0, 0); 419 VOP__UNLOCK(devvp, 0); 420 #else 421 error = vinvalbuf(devvp, V_SAVE, 0, 0); 422 #endif 423 if (error) 424 return (error); 425 426 ronly = (mp->mnt_flag & MNT_RDONLY) != 0; 427 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY); 428 error = VOP_OPEN(devvp, ronly ? FREAD : FREAD|FWRITE, FSCRED, NULL); 429 VOP__UNLOCK(devvp, 0); 430 if (error) 431 return (error); 432 dev = devvp->v_rdev; 433 434 bp = NULL; 435 436 error = bread(devvp, ntfs_bntodoff(BBLOCK), BBSIZE, &bp); 437 if (error) 438 goto out; 439 ntmp = kmalloc( sizeof *ntmp, M_NTFSMNT, M_WAITOK ); 440 bzero( ntmp, sizeof *ntmp ); 441 bcopy( bp->b_data, &ntmp->ntm_bootfile, sizeof(struct bootfile) ); 442 brelse( bp ); 443 bp = NULL; 444 445 if (strncmp(ntmp->ntm_bootfile.bf_sysid, NTFS_BBID, NTFS_BBIDLEN)) { 446 error = EINVAL; 447 dprintf(("ntfs_mountfs: invalid boot block\n")); 448 goto out; 449 } 450 451 { 452 int8_t cpr = ntmp->ntm_mftrecsz; 453 if( cpr > 0 ) 454 ntmp->ntm_bpmftrec = ntmp->ntm_spc * cpr; 455 else 456 ntmp->ntm_bpmftrec = (1 << (-cpr)) / ntmp->ntm_bps; 457 } 458 dprintf(("ntfs_mountfs(): bps: %d, spc: %d, media: %x, mftrecsz: %d (%d sects)\n", 459 ntmp->ntm_bps,ntmp->ntm_spc,ntmp->ntm_bootfile.bf_media, 460 ntmp->ntm_mftrecsz,ntmp->ntm_bpmftrec)); 461 dprintf(("ntfs_mountfs(): mftcn: 0x%x|0x%x\n", 462 (u_int32_t)ntmp->ntm_mftcn,(u_int32_t)ntmp->ntm_mftmirrcn)); 463 464 ntmp->ntm_mountp = mp; 465 ntmp->ntm_dev = dev; 466 ntmp->ntm_devvp = devvp; 467 ntmp->ntm_uid = argsp->uid; 468 ntmp->ntm_gid = argsp->gid; 469 ntmp->ntm_mode = argsp->mode; 470 ntmp->ntm_flag = argsp->flag; 471 472 /* Copy in the 8-bit to Unicode conversion table */ 473 if (argsp->flag & NTFSMNT_U2WTABLE) { 474 ntfs_82u_init(ntmp, argsp->u2w); 475 } else { 476 ntfs_82u_init(ntmp, NULL); 477 } 478 479 /* Initialize Unicode to 8-bit table from 8toU table */ 480 ntfs_u28_init(ntmp, ntmp->ntm_82u); 481 482 mp->mnt_data = (qaddr_t)ntmp; 483 484 dprintf(("ntfs_mountfs(): case-%s,%s uid: %d, gid: %d, mode: %o\n", 485 (ntmp->ntm_flag & NTFS_MFLAG_CASEINS)?"insens.":"sens.", 486 (ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES)?" allnames,":"", 487 ntmp->ntm_uid, ntmp->ntm_gid, ntmp->ntm_mode)); 488 489 vfs_add_vnodeops(mp, &ntfs_vnode_vops, &mp->mnt_vn_norm_ops); 490 491 /* 492 * We read in some system nodes to do not allow 493 * reclaim them and to have everytime access to them. 494 */ 495 { 496 int pi[3] = { NTFS_MFTINO, NTFS_ROOTINO, NTFS_BITMAPINO }; 497 for (i=0; i<3; i++) { 498 error = VFS_VGET(mp, pi[i], &(ntmp->ntm_sysvn[pi[i]])); 499 if(error) 500 goto out1; 501 ntmp->ntm_sysvn[pi[i]]->v_flag |= VSYSTEM; 502 vref(ntmp->ntm_sysvn[pi[i]]); 503 vput(ntmp->ntm_sysvn[pi[i]]); 504 } 505 } 506 507 /* read the Unicode lowercase --> uppercase translation table, 508 * if necessary */ 509 if ((error = ntfs_toupper_use(mp, ntmp))) 510 goto out1; 511 512 /* 513 * Scan $BitMap and count free clusters 514 */ 515 error = ntfs_calccfree(ntmp, &ntmp->ntm_cfree); 516 if(error) 517 goto out1; 518 519 /* 520 * Read and translate to internal format attribute 521 * definition file. 522 */ 523 { 524 int num,j; 525 struct attrdef ad; 526 527 /* Open $AttrDef */ 528 error = VFS_VGET(mp, NTFS_ATTRDEFINO, &vp); 529 if(error) 530 goto out1; 531 532 /* Count valid entries */ 533 for(num=0;;num++) { 534 error = ntfs_readattr(ntmp, VTONT(vp), 535 NTFS_A_DATA, NULL, 536 num * sizeof(ad), sizeof(ad), 537 &ad, NULL); 538 if (error) 539 goto out1; 540 if (ad.ad_name[0] == 0) 541 break; 542 } 543 544 /* Alloc memory for attribute definitions */ 545 MALLOC(ntmp->ntm_ad, struct ntvattrdef *, 546 num * sizeof(struct ntvattrdef), 547 M_NTFSMNT, M_WAITOK); 548 549 ntmp->ntm_adnum = num; 550 551 /* Read them and translate */ 552 for(i=0;i<num;i++){ 553 error = ntfs_readattr(ntmp, VTONT(vp), 554 NTFS_A_DATA, NULL, 555 i * sizeof(ad), sizeof(ad), 556 &ad, NULL); 557 if (error) 558 goto out1; 559 j = 0; 560 do { 561 ntmp->ntm_ad[i].ad_name[j] = ad.ad_name[j]; 562 } while(ad.ad_name[j++]); 563 ntmp->ntm_ad[i].ad_namelen = j - 1; 564 ntmp->ntm_ad[i].ad_type = ad.ad_type; 565 } 566 567 vput(vp); 568 } 569 570 #if defined(__DragonFly__) 571 mp->mnt_stat.f_fsid.val[0] = dev2udev(dev); 572 mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum; 573 #else 574 mp->mnt_stat.f_fsid.val[0] = dev; 575 mp->mnt_stat.f_fsid.val[1] = makefstype(MOUNT_NTFS); 576 #endif 577 mp->mnt_maxsymlinklen = 0; 578 mp->mnt_flag |= MNT_LOCAL; 579 dev->si_mountpoint = mp; 580 581 return (0); 582 583 out1: 584 for(i=0;i<NTFS_SYSNODESNUM;i++) 585 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 586 587 if (vflush(mp, 0, 0)) 588 dprintf(("ntfs_mountfs: vflush failed\n")); 589 590 out: 591 dev->si_mountpoint = NULL; 592 if (bp) 593 brelse(bp); 594 595 #if defined __NetBSD__ 596 /* lock the device vnode before calling VOP_CLOSE() */ 597 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY); 598 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE); 599 VOP__UNLOCK(devvp, 0); 600 #else 601 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE); 602 #endif 603 604 return (error); 605 } 606 607 #if !defined(__DragonFly__) 608 static int 609 ntfs_start(struct mount *mp, int flags, struct thread *td) 610 { 611 return (0); 612 } 613 #endif 614 615 static int 616 ntfs_unmount(struct mount *mp, int mntflags) 617 { 618 struct ntfsmount *ntmp; 619 int error, ronly, flags, i; 620 621 dprintf(("ntfs_unmount: unmounting...\n")); 622 ntmp = VFSTONTFS(mp); 623 624 ronly = (mp->mnt_flag & MNT_RDONLY) != 0; 625 flags = 0; 626 if(mntflags & MNT_FORCE) 627 flags |= FORCECLOSE; 628 629 dprintf(("ntfs_unmount: vflushing...\n")); 630 error = vflush(mp, 0, flags | SKIPSYSTEM); 631 if (error) { 632 kprintf("ntfs_unmount: vflush failed: %d\n",error); 633 return (error); 634 } 635 636 /* Check if only system vnodes are rest */ 637 for(i=0;i<NTFS_SYSNODESNUM;i++) 638 if((ntmp->ntm_sysvn[i]) && 639 (ntmp->ntm_sysvn[i]->v_sysref.refcnt > 1)) return (EBUSY); 640 641 /* Dereference all system vnodes */ 642 for(i=0;i<NTFS_SYSNODESNUM;i++) 643 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 644 645 /* vflush system vnodes */ 646 error = vflush(mp, 0, flags); 647 if (error) 648 kprintf("ntfs_unmount: vflush failed(sysnodes): %d\n",error); 649 650 /* Check if the type of device node isn't VBAD before 651 * touching v_cdevinfo. If the device vnode is revoked, the 652 * field is NULL and touching it causes null pointer derefercence. 653 */ 654 if (ntmp->ntm_devvp->v_type != VBAD) 655 ntmp->ntm_devvp->v_rdev->si_mountpoint = NULL; 656 657 vinvalbuf(ntmp->ntm_devvp, V_SAVE, 0, 0); 658 659 error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE); 660 661 vrele(ntmp->ntm_devvp); 662 663 /* free the toupper table, if this has been last mounted ntfs volume */ 664 ntfs_toupper_unuse(); 665 666 dprintf(("ntfs_umount: freeing memory...\n")); 667 ntfs_u28_uninit(ntmp); 668 ntfs_82u_uninit(ntmp); 669 mp->mnt_data = (qaddr_t)0; 670 mp->mnt_flag &= ~MNT_LOCAL; 671 FREE(ntmp->ntm_ad, M_NTFSMNT); 672 FREE(ntmp, M_NTFSMNT); 673 return (error); 674 } 675 676 static int 677 ntfs_root(struct mount *mp, struct vnode **vpp) 678 { 679 struct vnode *nvp; 680 int error = 0; 681 682 dprintf(("ntfs_root(): sysvn: %p\n", 683 VFSTONTFS(mp)->ntm_sysvn[NTFS_ROOTINO])); 684 error = VFS_VGET(mp, (ino_t)NTFS_ROOTINO, &nvp); 685 if(error) { 686 kprintf("ntfs_root: VFS_VGET failed: %d\n",error); 687 return (error); 688 } 689 690 *vpp = nvp; 691 return (0); 692 } 693 694 #if !defined(__DragonFly__) 695 static int 696 ntfs_quotactl(struct mount *mp, int cmds, uid_t uid, caddr_t arg, 697 struct thread *td) 698 { 699 kprintf("\nntfs_quotactl():\n"); 700 return EOPNOTSUPP; 701 } 702 #endif 703 704 int 705 ntfs_calccfree(struct ntfsmount *ntmp, cn_t *cfreep) 706 { 707 struct vnode *vp; 708 u_int8_t *tmp; 709 int j, error; 710 long cfree = 0; 711 size_t bmsize, i; 712 713 vp = ntmp->ntm_sysvn[NTFS_BITMAPINO]; 714 715 bmsize = VTOF(vp)->f_size; 716 717 MALLOC(tmp, u_int8_t *, bmsize, M_TEMP, M_WAITOK); 718 719 error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL, 720 0, bmsize, tmp, NULL); 721 if (error) 722 goto out; 723 724 for(i=0;i<bmsize;i++) 725 for(j=0;j<8;j++) 726 if(~tmp[i] & (1 << j)) cfree++; 727 *cfreep = cfree; 728 729 out: 730 FREE(tmp, M_TEMP); 731 return(error); 732 } 733 734 static int 735 ntfs_statfs(struct mount *mp, struct statfs *sbp, struct ucred *cred) 736 { 737 struct ntfsmount *ntmp = VFSTONTFS(mp); 738 u_int64_t mftsize,mftallocated; 739 740 dprintf(("ntfs_statfs():\n")); 741 742 mftsize = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_size; 743 mftallocated = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_allocated; 744 745 #if defined(__DragonFly__) 746 sbp->f_type = mp->mnt_vfc->vfc_typenum; 747 #elif defined(__NetBSD__) 748 sbp->f_type = 0; 749 #else 750 sbp->f_type = MOUNT_NTFS; 751 #endif 752 sbp->f_bsize = ntmp->ntm_bps; 753 sbp->f_iosize = ntmp->ntm_bps * ntmp->ntm_spc; 754 sbp->f_blocks = ntmp->ntm_bootfile.bf_spv; 755 sbp->f_bfree = sbp->f_bavail = ntfs_cntobn(ntmp->ntm_cfree); 756 sbp->f_ffree = sbp->f_bfree / ntmp->ntm_bpmftrec; 757 sbp->f_files = mftallocated / ntfs_bntob(ntmp->ntm_bpmftrec) + 758 sbp->f_ffree; 759 if (sbp != &mp->mnt_stat) { 760 bcopy((caddr_t)mp->mnt_stat.f_mntfromname, 761 (caddr_t)&sbp->f_mntfromname[0], MNAMELEN); 762 } 763 sbp->f_flags = mp->mnt_flag; 764 #ifdef __NetBSD__ 765 strncpy(sbp->f_fstypename, mp->mnt_op->vfs_name, MFSNAMELEN); 766 #endif 767 768 return (0); 769 } 770 771 #if !defined(__DragonFly__) 772 static int 773 ntfs_sync(struct mount *mp, int waitfor, struct ucred *cred, struct thread *td) 774 { 775 /*dprintf(("ntfs_sync():\n"));*/ 776 return (0); 777 } 778 #endif 779 780 /*ARGSUSED*/ 781 static int 782 ntfs_fhtovp(struct mount *mp, struct fid *fhp, struct vnode **vpp) 783 { 784 struct vnode *nvp; 785 struct ntfid *ntfhp = (struct ntfid *)fhp; 786 int error; 787 788 ddprintf(("ntfs_fhtovp(): %d\n", ntfhp->ntfid_ino)); 789 790 if ((error = VFS_VGET(mp, ntfhp->ntfid_ino, &nvp)) != 0) { 791 *vpp = NULLVP; 792 return (error); 793 } 794 /* XXX as unlink/rmdir/mkdir/creat are not currently possible 795 * with NTFS, we don't need to check anything else for now */ 796 *vpp = nvp; 797 798 return (0); 799 } 800 801 static int 802 ntfs_vptofh(struct vnode *vp, struct fid *fhp) 803 { 804 struct ntnode *ntp; 805 struct ntfid *ntfhp; 806 807 ddprintf(("ntfs_fhtovp(): %p\n", vp)); 808 809 ntp = VTONT(vp); 810 ntfhp = (struct ntfid *)fhp; 811 ntfhp->ntfid_len = sizeof(struct ntfid); 812 ntfhp->ntfid_ino = ntp->i_number; 813 /* ntfhp->ntfid_gen = ntp->i_gen; */ 814 return (0); 815 } 816 817 int 818 ntfs_vgetex(struct mount *mp, ino_t ino, u_int32_t attrtype, char *attrname, 819 u_long lkflags, u_long flags, struct thread *td, 820 struct vnode **vpp) 821 { 822 int error; 823 struct ntfsmount *ntmp; 824 struct ntnode *ip; 825 struct fnode *fp; 826 struct vnode *vp; 827 enum vtype f_type; 828 829 dprintf(("ntfs_vgetex: ino: %d, attr: 0x%x:%s, lkf: 0x%lx, f: 0x%lx\n", 830 ino, attrtype, attrname?attrname:"", (u_long)lkflags, 831 (u_long)flags )); 832 833 ntmp = VFSTONTFS(mp); 834 *vpp = NULL; 835 836 /* Get ntnode */ 837 error = ntfs_ntlookup(ntmp, ino, &ip); 838 if (error) { 839 kprintf("ntfs_vget: ntfs_ntget failed\n"); 840 return (error); 841 } 842 843 /* It may be not initialized fully, so force load it */ 844 if (!(flags & VG_DONTLOADIN) && !(ip->i_flag & IN_LOADED)) { 845 error = ntfs_loadntnode(ntmp, ip); 846 if(error) { 847 kprintf("ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO: %"PRId64"\n", 848 ip->i_number); 849 ntfs_ntput(ip); 850 return (error); 851 } 852 } 853 854 error = ntfs_fget(ntmp, ip, attrtype, attrname, &fp); 855 if (error) { 856 kprintf("ntfs_vget: ntfs_fget failed\n"); 857 ntfs_ntput(ip); 858 return (error); 859 } 860 861 f_type = VNON; 862 if (!(flags & VG_DONTVALIDFN) && !(fp->f_flag & FN_VALID)) { 863 if ((ip->i_frflag & NTFS_FRFLAG_DIR) && 864 (fp->f_attrtype == NTFS_A_DATA && fp->f_attrname == NULL)) { 865 f_type = VDIR; 866 } else if (flags & VG_EXT) { 867 f_type = VNON; 868 fp->f_size = fp->f_allocated = 0; 869 } else { 870 f_type = VREG; 871 872 error = ntfs_filesize(ntmp, fp, 873 &fp->f_size, &fp->f_allocated); 874 if (error) { 875 ntfs_ntput(ip); 876 return (error); 877 } 878 } 879 880 fp->f_flag |= FN_VALID; 881 } 882 883 if (FTOV(fp)) { 884 VGET(FTOV(fp), lkflags); 885 *vpp = FTOV(fp); 886 ntfs_ntput(ip); 887 return (0); 888 } 889 890 error = getnewvnode(VT_NTFS, ntmp->ntm_mountp, &vp, VLKTIMEOUT, 0); 891 if(error) { 892 ntfs_frele(fp); 893 ntfs_ntput(ip); 894 return (error); 895 } 896 dprintf(("ntfs_vget: vnode: %p for ntnode: %d\n", vp,ino)); 897 898 fp->f_vp = vp; 899 vp->v_data = fp; 900 vp->v_type = f_type; 901 902 if (ino == NTFS_ROOTINO) 903 vp->v_flag |= VROOT; 904 905 /* 906 * Normal files use the buffer cache 907 */ 908 if (f_type == VREG) 909 vinitvmio(vp, fp->f_size); 910 911 ntfs_ntput(ip); 912 913 KKASSERT(lkflags & LK_TYPE_MASK); 914 /* XXX leave vnode locked exclusively from getnewvnode */ 915 *vpp = vp; 916 return (0); 917 918 } 919 920 static int 921 ntfs_vget(struct mount *mp, ino_t ino, struct vnode **vpp) 922 { 923 return ntfs_vgetex(mp, ino, NTFS_A_DATA, NULL, 924 LK_EXCLUSIVE | LK_RETRY, 0, curthread, vpp); 925 } 926 927 #if defined(__DragonFly__) 928 static struct vfsops ntfs_vfsops = { 929 .vfs_mount = ntfs_mount, 930 .vfs_unmount = ntfs_unmount, 931 .vfs_root = ntfs_root, 932 .vfs_statfs = ntfs_statfs, 933 .vfs_sync = vfs_stdsync, 934 .vfs_vget = ntfs_vget, 935 .vfs_fhtovp = ntfs_fhtovp, 936 .vfs_checkexp = ntfs_checkexp, 937 .vfs_vptofh = ntfs_vptofh, 938 .vfs_init = ntfs_init, 939 .vfs_uninit = ntfs_nthash_uninit /* see ntfs_ihash.c */ 940 }; 941 VFS_SET(ntfs_vfsops, ntfs, 0); 942 #elif defined(__NetBSD__) 943 extern struct vnodeopv_desc ntfs_vnodeop_opv_desc; 944 945 struct vnodeopv_desc *ntfs_vnodeopv_descs[] = { 946 &ntfs_vnodeop_opv_desc, 947 NULL, 948 }; 949 950 struct vfsops ntfs_vfsops = { 951 MOUNT_NTFS, 952 ntfs_mount, 953 ntfs_start, 954 ntfs_unmount, 955 ntfs_root, 956 ntfs_quotactl, 957 ntfs_statfs, 958 ntfs_sync, 959 ntfs_vget, 960 ntfs_fhtovp, 961 ntfs_vptofh, 962 ntfs_init, 963 ntfs_sysctl, 964 ntfs_mountroot, 965 ntfs_checkexp, 966 ntfs_vnodeopv_descs, 967 }; 968 #else /* !NetBSD && !FreeBSD */ 969 static struct vfsops ntfs_vfsops = { 970 ntfs_mount, 971 ntfs_start, 972 ntfs_unmount, 973 ntfs_root, 974 ntfs_quotactl, 975 ntfs_statfs, 976 ntfs_sync, 977 ntfs_vget, 978 ntfs_fhtovp, 979 ntfs_vptofh, 980 ntfs_init, 981 }; 982 VFS_SET(ntfs_vfsops, ntfs, MOUNT_NTFS, 0); 983 #endif 984 985 986