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