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