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 */ 30 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/conf.h> 35 #include <sys/proc.h> 36 #include <sys/nlookup.h> 37 #include <sys/kernel.h> 38 #include <sys/vnode.h> 39 #include <sys/mount.h> 40 #include <sys/buf.h> 41 #include <sys/fcntl.h> 42 #include <sys/malloc.h> 43 #include <sys/systm.h> 44 #if defined(__NetBSD__) 45 #include <sys/device.h> 46 #endif 47 48 #include <machine/inttypes.h> 49 50 #include <vm/vm.h> 51 #include <vm/vm_param.h> 52 #if defined(__NetBSD__) 53 #include <vm/vm_prot.h> 54 #endif 55 #include <vm/vm_page.h> 56 #include <vm/vm_object.h> 57 #include <vm/vm_extern.h> 58 #include <vm/vm_zone.h> 59 60 #if defined(__NetBSD__) 61 #include <miscfs/specfs/specdev.h> 62 #endif 63 64 #include <sys/buf2.h> 65 66 /*#define NTFS_DEBUG 1*/ 67 #include "ntfs.h" 68 #include "ntfs_inode.h" 69 #include "ntfs_subr.h" 70 #include "ntfs_vfsops.h" 71 #include "ntfs_ihash.h" 72 #include "ntfsmount.h" 73 74 extern struct vop_ops ntfs_vnode_vops; 75 76 #if defined(__DragonFly__) 77 MALLOC_DEFINE(M_NTFSMNT, "NTFS mount", "NTFS mount structure"); 78 MALLOC_DEFINE(M_NTFSNTNODE,"NTFS ntnode", "NTFS ntnode information"); 79 MALLOC_DEFINE(M_NTFSFNODE,"NTFS fnode", "NTFS fnode information"); 80 MALLOC_DEFINE(M_NTFSDIR,"NTFS dir", "NTFS dir buffer"); 81 #endif 82 83 struct iconv_functions *ntfs_iconv = NULL; 84 85 static int ntfs_root (struct mount *, struct vnode **); 86 static int ntfs_statfs (struct mount *, struct statfs *, struct ucred *cred); 87 static int ntfs_unmount (struct mount *, int); 88 static int ntfs_vget (struct mount *mp, struct vnode *dvp, 89 ino_t ino, struct vnode **vpp); 90 static int ntfs_mountfs (struct vnode *, struct mount *, 91 struct ntfs_args *, struct ucred *); 92 static int ntfs_vptofh (struct vnode *, struct fid *); 93 static int ntfs_fhtovp (struct mount *, struct vnode *rootvp, 94 struct fid *, struct vnode **); 95 96 #if !defined (__DragonFly__) 97 static int ntfs_quotactl (struct mount *, int, uid_t, caddr_t, 98 struct thread *); 99 static int ntfs_start (struct mount *, int, struct thread *); 100 static int ntfs_sync (struct mount *, int, struct ucred *, 101 struct thread *); 102 #endif 103 104 #if defined(__DragonFly__) 105 struct sockaddr; 106 static int ntfs_mount (struct mount *, char *, caddr_t, struct ucred *); 107 static int ntfs_init (struct vfsconf *); 108 static int ntfs_checkexp (struct mount *, struct sockaddr *, 109 int *, struct ucred **); 110 #elif defined(__NetBSD__) 111 static int ntfs_mount (struct mount *, const char *, void *, 112 struct nameidata *, struct thread *); 113 static void ntfs_init (void); 114 static int ntfs_mountroot (void); 115 static int ntfs_sysctl (int *, u_int, void *, size_t *, void *, 116 size_t, struct thread *); 117 static int ntfs_checkexp (struct mount *, struct mbuf *, 118 int *, struct ucred **); 119 #endif 120 121 /* 122 * Verify a remote client has export rights and return these rights via. 123 * exflagsp and credanonp. 124 */ 125 static int 126 ntfs_checkexp(struct mount *mp, 127 #if defined(__DragonFly__) 128 struct sockaddr *nam, 129 #else /* defined(__NetBSD__) */ 130 struct mbuf *nam, 131 #endif 132 int *exflagsp, struct ucred **credanonp) 133 { 134 struct netcred *np; 135 struct ntfsmount *ntm = VFSTONTFS(mp); 136 137 /* 138 * Get the export permission structure for this <mp, client> tuple. 139 */ 140 np = vfs_export_lookup(mp, &ntm->ntm_export, nam); 141 if (np == NULL) 142 return (EACCES); 143 144 *exflagsp = np->netc_exflags; 145 *credanonp = &np->netc_anon; 146 return (0); 147 } 148 149 #if defined(__NetBSD__) 150 /*ARGSUSED*/ 151 static int 152 ntfs_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp, 153 size_t newlen, struct thread *td) 154 { 155 return (EINVAL); 156 } 157 158 static int 159 ntfs_mountroot(void) 160 { 161 struct mount *mp; 162 struct vnode *rootvp; 163 struct thread *td = curthread; /* XXX */ 164 struct ntfs_args args; 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 vsetflags(ntmp->ntm_sysvn[pi[i]], 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 ntmp->ntm_ad = kmalloc(num * sizeof(struct ntvattrdef), 551 M_NTFSMNT, M_WAITOK); 552 553 ntmp->ntm_adnum = num; 554 555 /* Read them and translate */ 556 for(i=0;i<num;i++){ 557 error = ntfs_readattr(ntmp, VTONT(vp), 558 NTFS_A_DATA, NULL, 559 i * sizeof(ad), sizeof(ad), 560 &ad, NULL); 561 if (error) 562 goto out1; 563 j = 0; 564 do { 565 ntmp->ntm_ad[i].ad_name[j] = ad.ad_name[j]; 566 } while(ad.ad_name[j++]); 567 ntmp->ntm_ad[i].ad_namelen = j - 1; 568 ntmp->ntm_ad[i].ad_type = ad.ad_type; 569 } 570 571 vput(vp); 572 } 573 574 #if defined(__DragonFly__) 575 mp->mnt_stat.f_fsid.val[0] = dev2udev(dev); 576 mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum; 577 #else 578 mp->mnt_stat.f_fsid.val[0] = dev; 579 mp->mnt_stat.f_fsid.val[1] = makefstype(MOUNT_NTFS); 580 #endif 581 mp->mnt_maxsymlinklen = 0; 582 mp->mnt_flag |= MNT_LOCAL; 583 dev->si_mountpoint = mp; 584 585 return (0); 586 587 out1: 588 for(i=0;i<NTFS_SYSNODESNUM;i++) 589 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 590 591 if (vflush(mp, 0, 0)) 592 dprintf(("ntfs_mountfs: vflush failed\n")); 593 594 out: 595 dev->si_mountpoint = NULL; 596 if (bp) 597 brelse(bp); 598 599 #if defined __NetBSD__ 600 /* lock the device vnode before calling VOP_CLOSE() */ 601 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY); 602 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE); 603 VOP__UNLOCK(devvp, 0); 604 #else 605 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE); 606 #endif 607 608 return (error); 609 } 610 611 #if !defined(__DragonFly__) 612 static int 613 ntfs_start(struct mount *mp, int flags, struct thread *td) 614 { 615 return (0); 616 } 617 #endif 618 619 static int 620 ntfs_unmount(struct mount *mp, int mntflags) 621 { 622 struct ntfsmount *ntmp; 623 int error, ronly, flags, i; 624 625 dprintf(("ntfs_unmount: unmounting...\n")); 626 ntmp = VFSTONTFS(mp); 627 628 ronly = (mp->mnt_flag & MNT_RDONLY) != 0; 629 flags = 0; 630 if(mntflags & MNT_FORCE) 631 flags |= FORCECLOSE; 632 633 dprintf(("ntfs_unmount: vflushing...\n")); 634 error = vflush(mp, 0, flags | SKIPSYSTEM); 635 if (error) { 636 kprintf("ntfs_unmount: vflush failed: %d\n",error); 637 return (error); 638 } 639 640 /* Check if only system vnodes are left */ 641 for(i=0;i<NTFS_SYSNODESNUM;i++) 642 if((ntmp->ntm_sysvn[i]) && 643 (ntmp->ntm_sysvn[i]->v_sysref.refcnt > 1)) return (EBUSY); 644 645 /* Dereference all system vnodes */ 646 for(i=0;i<NTFS_SYSNODESNUM;i++) 647 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 648 649 /* vflush system vnodes */ 650 error = vflush(mp, 0, flags); 651 if (error) 652 kprintf("ntfs_unmount: vflush failed(sysnodes): %d\n",error); 653 654 /* Check if the type of device node isn't VBAD before 655 * touching v_cdevinfo. If the device vnode is revoked, the 656 * field is NULL and touching it causes null pointer derefercence. 657 */ 658 if (ntmp->ntm_devvp->v_type != VBAD) 659 ntmp->ntm_devvp->v_rdev->si_mountpoint = NULL; 660 661 vinvalbuf(ntmp->ntm_devvp, V_SAVE, 0, 0); 662 663 error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE); 664 665 vrele(ntmp->ntm_devvp); 666 667 /* free the toupper table, if this has been last mounted ntfs volume */ 668 ntfs_toupper_unuse(); 669 670 dprintf(("ntfs_umount: freeing memory...\n")); 671 ntfs_u28_uninit(ntmp); 672 ntfs_82u_uninit(ntmp); 673 mp->mnt_data = (qaddr_t)0; 674 mp->mnt_flag &= ~MNT_LOCAL; 675 kfree(ntmp->ntm_ad, M_NTFSMNT); 676 kfree(ntmp, M_NTFSMNT); 677 return (error); 678 } 679 680 static int 681 ntfs_root(struct mount *mp, struct vnode **vpp) 682 { 683 struct vnode *nvp; 684 int error = 0; 685 686 dprintf(("ntfs_root(): sysvn: %p\n", 687 VFSTONTFS(mp)->ntm_sysvn[NTFS_ROOTINO])); 688 error = VFS_VGET(mp, NULL, (ino_t)NTFS_ROOTINO, &nvp); 689 if(error) { 690 kprintf("ntfs_root: VFS_VGET failed: %d\n",error); 691 return (error); 692 } 693 694 *vpp = nvp; 695 return (0); 696 } 697 698 #if !defined(__DragonFly__) 699 static int 700 ntfs_quotactl(struct mount *mp, int cmds, uid_t uid, caddr_t arg, 701 struct thread *td) 702 { 703 kprintf("\nntfs_quotactl():\n"); 704 return EOPNOTSUPP; 705 } 706 #endif 707 708 int 709 ntfs_calccfree(struct ntfsmount *ntmp, cn_t *cfreep) 710 { 711 struct vnode *vp; 712 u_int8_t *tmp; 713 int j, error; 714 long cfree = 0; 715 size_t bmsize, i; 716 717 vp = ntmp->ntm_sysvn[NTFS_BITMAPINO]; 718 719 bmsize = VTOF(vp)->f_size; 720 721 tmp = kmalloc(bmsize, M_TEMP, M_WAITOK); 722 723 error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL, 724 0, bmsize, tmp, NULL); 725 if (error) 726 goto out; 727 728 for(i=0;i<bmsize;i++) 729 for(j=0;j<8;j++) 730 if(~tmp[i] & (1 << j)) cfree++; 731 *cfreep = cfree; 732 733 out: 734 kfree(tmp, M_TEMP); 735 return(error); 736 } 737 738 static int 739 ntfs_statfs(struct mount *mp, struct statfs *sbp, struct ucred *cred) 740 { 741 struct ntfsmount *ntmp = VFSTONTFS(mp); 742 u_int64_t mftsize,mftallocated; 743 744 dprintf(("ntfs_statfs():\n")); 745 746 mftsize = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_size; 747 mftallocated = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_allocated; 748 749 #if defined(__DragonFly__) 750 sbp->f_type = mp->mnt_vfc->vfc_typenum; 751 #elif defined(__NetBSD__) 752 sbp->f_type = 0; 753 #else 754 sbp->f_type = MOUNT_NTFS; 755 #endif 756 sbp->f_bsize = ntmp->ntm_bps; 757 sbp->f_iosize = ntmp->ntm_bps * ntmp->ntm_spc; 758 sbp->f_blocks = ntmp->ntm_bootfile.bf_spv; 759 sbp->f_bfree = sbp->f_bavail = ntfs_cntobn(ntmp->ntm_cfree); 760 sbp->f_ffree = sbp->f_bfree / ntmp->ntm_bpmftrec; 761 sbp->f_files = mftallocated / ntfs_bntob(ntmp->ntm_bpmftrec) + 762 sbp->f_ffree; 763 if (sbp != &mp->mnt_stat) { 764 bcopy((caddr_t)mp->mnt_stat.f_mntfromname, 765 (caddr_t)&sbp->f_mntfromname[0], MNAMELEN); 766 } 767 sbp->f_flags = mp->mnt_flag; 768 #ifdef __NetBSD__ 769 strncpy(sbp->f_fstypename, mp->mnt_op->vfs_name, MFSNAMELEN); 770 #endif 771 772 return (0); 773 } 774 775 #if !defined(__DragonFly__) 776 static int 777 ntfs_sync(struct mount *mp, int waitfor, struct ucred *cred, struct thread *td) 778 { 779 /*dprintf(("ntfs_sync():\n"));*/ 780 return (0); 781 } 782 #endif 783 784 /*ARGSUSED*/ 785 static int 786 ntfs_fhtovp(struct mount *mp, struct vnode *rootvp, 787 struct fid *fhp, struct vnode **vpp) 788 { 789 struct vnode *nvp; 790 struct ntfid *ntfhp = (struct ntfid *)fhp; 791 int error; 792 793 ddprintf(("ntfs_fhtovp(): %d\n", ntfhp->ntfid_ino)); 794 795 if ((error = VFS_VGET(mp, NULL, ntfhp->ntfid_ino, &nvp)) != 0) { 796 *vpp = NULLVP; 797 return (error); 798 } 799 /* XXX as unlink/rmdir/mkdir/creat are not currently possible 800 * with NTFS, we don't need to check anything else for now */ 801 *vpp = nvp; 802 803 return (0); 804 } 805 806 static int 807 ntfs_vptofh(struct vnode *vp, struct fid *fhp) 808 { 809 struct ntnode *ntp; 810 struct ntfid *ntfhp; 811 812 ddprintf(("ntfs_fhtovp(): %p\n", vp)); 813 814 ntp = VTONT(vp); 815 ntfhp = (struct ntfid *)fhp; 816 ntfhp->ntfid_len = sizeof(struct ntfid); 817 ntfhp->ntfid_ino = ntp->i_number; 818 /* ntfhp->ntfid_gen = ntp->i_gen; */ 819 return (0); 820 } 821 822 int 823 ntfs_vgetex(struct mount *mp, ino_t ino, u_int32_t attrtype, char *attrname, 824 u_long lkflags, u_long flags, struct thread *td, 825 struct vnode **vpp) 826 { 827 int error; 828 struct ntfsmount *ntmp; 829 struct ntnode *ip; 830 struct fnode *fp; 831 struct vnode *vp; 832 enum vtype f_type; 833 834 dprintf(("ntfs_vgetex: ino: %d, attr: 0x%x:%s, lkf: 0x%lx, f: 0x%lx\n", 835 ino, attrtype, attrname?attrname:"", (u_long)lkflags, 836 (u_long)flags )); 837 838 ntmp = VFSTONTFS(mp); 839 *vpp = NULL; 840 841 /* Get ntnode */ 842 error = ntfs_ntlookup(ntmp, ino, &ip); 843 if (error) { 844 kprintf("ntfs_vget: ntfs_ntget failed\n"); 845 return (error); 846 } 847 848 /* It may be not initialized fully, so force load it */ 849 if (!(flags & VG_DONTLOADIN) && !(ip->i_flag & IN_LOADED)) { 850 error = ntfs_loadntnode(ntmp, ip); 851 if(error) { 852 kprintf("ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO: %"PRId64"\n", 853 ip->i_number); 854 ntfs_ntput(ip); 855 return (error); 856 } 857 } 858 859 error = ntfs_fget(ntmp, ip, attrtype, attrname, &fp); 860 if (error) { 861 kprintf("ntfs_vget: ntfs_fget failed\n"); 862 ntfs_ntput(ip); 863 return (error); 864 } 865 866 f_type = VINT; 867 if (!(flags & VG_DONTVALIDFN) && !(fp->f_flag & FN_VALID)) { 868 if ((ip->i_frflag & NTFS_FRFLAG_DIR) && 869 (fp->f_attrtype == NTFS_A_DATA && fp->f_attrname == NULL)) { 870 f_type = VDIR; 871 } else if (flags & VG_EXT) { 872 f_type = VINT; 873 fp->f_size = fp->f_allocated = 0; 874 } else { 875 f_type = VREG; 876 877 error = ntfs_filesize(ntmp, fp, 878 &fp->f_size, &fp->f_allocated); 879 if (error) { 880 ntfs_ntput(ip); 881 return (error); 882 } 883 } 884 885 fp->f_flag |= FN_VALID; 886 } 887 888 if (FTOV(fp)) { 889 VGET(FTOV(fp), lkflags); 890 *vpp = FTOV(fp); 891 ntfs_ntput(ip); 892 return (0); 893 } 894 895 error = getnewvnode(VT_NTFS, ntmp->ntm_mountp, &vp, VLKTIMEOUT, 0); 896 if(error) { 897 ntfs_frele(fp); 898 ntfs_ntput(ip); 899 return (error); 900 } 901 dprintf(("ntfs_vget: vnode: %p for ntnode: %d\n", vp,ino)); 902 903 fp->f_vp = vp; 904 vp->v_data = fp; 905 vp->v_type = f_type; 906 907 if (ino == NTFS_ROOTINO) 908 vsetflags(vp, VROOT); 909 910 /* 911 * Normal files use the buffer cache 912 */ 913 if (f_type == VREG) 914 vinitvmio(vp, fp->f_size, PAGE_SIZE, -1); 915 916 ntfs_ntput(ip); 917 918 KKASSERT(lkflags & LK_TYPE_MASK); 919 /* XXX leave vnode locked exclusively from getnewvnode */ 920 *vpp = vp; 921 return (0); 922 923 } 924 925 static int 926 ntfs_vget(struct mount *mp, struct vnode *dvp, ino_t ino, struct vnode **vpp) 927 { 928 return ntfs_vgetex(mp, ino, NTFS_A_DATA, NULL, 929 LK_EXCLUSIVE | LK_RETRY, 0, curthread, vpp); 930 } 931 932 #if defined(__DragonFly__) 933 static struct vfsops ntfs_vfsops = { 934 .vfs_mount = ntfs_mount, 935 .vfs_unmount = ntfs_unmount, 936 .vfs_root = ntfs_root, 937 .vfs_statfs = ntfs_statfs, 938 .vfs_sync = vfs_stdsync, 939 .vfs_vget = ntfs_vget, 940 .vfs_fhtovp = ntfs_fhtovp, 941 .vfs_checkexp = ntfs_checkexp, 942 .vfs_vptofh = ntfs_vptofh, 943 .vfs_init = ntfs_init, 944 .vfs_uninit = ntfs_nthash_uninit /* see ntfs_ihash.c */ 945 }; 946 VFS_SET(ntfs_vfsops, ntfs, 0); 947 MODULE_VERSION(ntfs, 1); 948 #elif defined(__NetBSD__) 949 extern struct vnodeopv_desc ntfs_vnodeop_opv_desc; 950 951 struct vnodeopv_desc *ntfs_vnodeopv_descs[] = { 952 &ntfs_vnodeop_opv_desc, 953 NULL, 954 }; 955 956 struct vfsops ntfs_vfsops = { 957 MOUNT_NTFS, 958 ntfs_mount, 959 ntfs_start, 960 ntfs_unmount, 961 ntfs_root, 962 ntfs_quotactl, 963 ntfs_statfs, 964 ntfs_sync, 965 ntfs_vget, 966 ntfs_fhtovp, 967 ntfs_vptofh, 968 ntfs_init, 969 ntfs_sysctl, 970 ntfs_mountroot, 971 ntfs_checkexp, 972 ntfs_vnodeopv_descs, 973 }; 974 #else /* !NetBSD && !FreeBSD */ 975 static struct vfsops ntfs_vfsops = { 976 ntfs_mount, 977 ntfs_start, 978 ntfs_unmount, 979 ntfs_root, 980 ntfs_quotactl, 981 ntfs_statfs, 982 ntfs_sync, 983 ntfs_vget, 984 ntfs_fhtovp, 985 ntfs_vptofh, 986 ntfs_init, 987 }; 988 VFS_SET(ntfs_vfsops, ntfs, MOUNT_NTFS, 0); 989 #endif 990 991 992