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 #if defined(__NetBSD__) 44 #include <sys/device.h> 45 #endif 46 47 #include <machine/inttypes.h> 48 49 #include <vm/vm.h> 50 #include <vm/vm_param.h> 51 #if defined(__NetBSD__) 52 #include <vm/vm_prot.h> 53 #endif 54 #include <vm/vm_page.h> 55 #include <vm/vm_object.h> 56 #include <vm/vm_extern.h> 57 #include <vm/vm_zone.h> 58 59 #if defined(__NetBSD__) 60 #include <miscfs/specfs/specdev.h> 61 #endif 62 63 #include <sys/buf2.h> 64 65 #include "ntfs.h" 66 #include "ntfs_inode.h" 67 #include "ntfs_subr.h" 68 #include "ntfs_vfsops.h" 69 #include "ntfs_ihash.h" 70 #include "ntfsmount.h" 71 72 extern struct vop_ops ntfs_vnode_vops; 73 74 #if defined(__DragonFly__) 75 MALLOC_DEFINE(M_NTFSMNT, "NTFS mount", "NTFS mount structure"); 76 MALLOC_DEFINE(M_NTFSNTNODE,"NTFS ntnode", "NTFS ntnode information"); 77 MALLOC_DEFINE(M_NTFSFNODE,"NTFS fnode", "NTFS fnode information"); 78 MALLOC_DEFINE(M_NTFSDIR,"NTFS dir", "NTFS dir buffer"); 79 #endif 80 81 struct iconv_functions *ntfs_iconv = NULL; 82 83 static int ntfs_root (struct mount *, struct vnode **); 84 static int ntfs_statfs (struct mount *, struct statfs *, 85 struct ucred *cred); 86 static int ntfs_statvfs (struct mount *, struct statvfs *, 87 struct ucred *); 88 static int ntfs_unmount (struct mount *, int); 89 static int ntfs_vget (struct mount *mp, struct vnode *dvp, 90 ino_t ino, struct vnode **vpp); 91 static int ntfs_mountfs (struct vnode *, struct mount *, 92 struct ntfs_args *, struct ucred *); 93 static int ntfs_vptofh (struct vnode *, struct fid *); 94 static int ntfs_fhtovp (struct mount *, struct vnode *rootvp, 95 struct fid *, struct vnode **); 96 97 #if !defined (__DragonFly__) 98 static int ntfs_quotactl (struct mount *, int, uid_t, caddr_t, 99 struct thread *); 100 static int ntfs_start (struct mount *, int, struct thread *); 101 static int ntfs_sync (struct mount *, int, struct ucred *, 102 struct thread *); 103 #endif 104 105 #if defined(__DragonFly__) 106 struct sockaddr; 107 static int ntfs_mount (struct mount *, char *, caddr_t, struct ucred *); 108 static int ntfs_init (struct vfsconf *); 109 static int ntfs_checkexp (struct mount *, struct sockaddr *, 110 int *, struct ucred **); 111 #elif defined(__NetBSD__) 112 static int ntfs_mount (struct mount *, const char *, void *, 113 struct nameidata *, struct thread *); 114 static void ntfs_init (void); 115 static int ntfs_mountroot (void); 116 static int ntfs_sysctl (int *, u_int, void *, size_t *, void *, 117 size_t, struct thread *); 118 static int ntfs_checkexp (struct mount *, struct mbuf *, 119 int *, struct ucred **); 120 #endif 121 122 /* 123 * Verify a remote client has export rights and return these rights via. 124 * exflagsp and credanonp. 125 */ 126 static int 127 ntfs_checkexp(struct mount *mp, 128 #if defined(__DragonFly__) 129 struct sockaddr *nam, 130 #else /* defined(__NetBSD__) */ 131 struct mbuf *nam, 132 #endif 133 int *exflagsp, struct ucred **credanonp) 134 { 135 struct netcred *np; 136 struct ntfsmount *ntm = VFSTONTFS(mp); 137 138 /* 139 * Get the export permission structure for this <mp, client> tuple. 140 */ 141 np = vfs_export_lookup(mp, &ntm->ntm_export, nam); 142 if (np == NULL) 143 return (EACCES); 144 145 *exflagsp = np->netc_exflags; 146 *credanonp = &np->netc_anon; 147 return (0); 148 } 149 150 #if defined(__NetBSD__) 151 /*ARGSUSED*/ 152 static int 153 ntfs_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp, 154 size_t newlen, struct thread *td) 155 { 156 return (EINVAL); 157 } 158 159 static int 160 ntfs_mountroot(void) 161 { 162 struct mount *mp; 163 struct vnode *rootvp; 164 struct thread *td = curthread; /* XXX */ 165 struct ntfs_args args; 166 int error; 167 168 if (root_device->dv_class != DV_DISK) 169 return (ENODEV); 170 171 /* 172 * Get vnodes for rootdev. 173 */ 174 if (bdevvp(rootdev, &rootvp)) 175 panic("ntfs_mountroot: can't setup rootvp"); 176 177 if ((error = vfs_rootmountalloc(MOUNT_NTFS, "root_device", &mp))) { 178 vrele(rootvp); 179 return (error); 180 } 181 182 args.flag = 0; 183 args.uid = 0; 184 args.gid = 0; 185 args.mode = 0777; 186 187 if ((error = ntfs_mountfs(rootvp, mp, &args, proc0.p_ucred)) != 0) { 188 mp->mnt_op->vfs_refcount--; 189 vfs_unbusy(mp); 190 kfree(mp, M_MOUNT); 191 vrele(rootvp); 192 return (error); 193 } 194 mountlist_insert(mp, MNTINS_LAST); 195 (void)ntfs_statfs(mp, &mp->mnt_stat, proc0.p_ucred); 196 vfs_unbusy(mp); 197 return (0); 198 } 199 200 static void 201 ntfs_init(void) 202 { 203 ntfs_nthashinit(); 204 ntfs_toupper_init(); 205 } 206 207 #elif defined(__DragonFly__) 208 209 static int 210 ntfs_init(struct vfsconf *vcp) 211 { 212 ntfs_nthashinit(); 213 ntfs_toupper_init(); 214 return 0; 215 } 216 217 #endif /* NetBSD */ 218 219 static int 220 ntfs_mount(struct mount *mp, char *path, caddr_t data, struct ucred *cred) 221 { 222 size_t size; 223 int error; 224 struct vnode *devvp; 225 struct ntfs_args args; 226 struct nlookupdata nd; 227 struct vnode *rootvp; 228 229 error = 0; 230 #ifdef __DragonFly__ 231 /* 232 * Use NULL path to flag a root mount 233 */ 234 if( path == NULL) { 235 /* 236 *** 237 * Mounting root file system 238 *** 239 */ 240 241 /* Get vnode for root device*/ 242 if( bdevvp( rootdev, &rootvp)) 243 panic("ffs_mountroot: can't setup bdevvp for root"); 244 245 /* 246 * FS specific handling 247 */ 248 mp->mnt_flag |= MNT_RDONLY; /* XXX globally applicable?*/ 249 250 /* 251 * Attempt mount 252 */ 253 if( ( error = ntfs_mountfs(rootvp, mp, &args, cred)) != 0) { 254 /* fs specific cleanup (if any)*/ 255 goto error_1; 256 } 257 258 goto dostatfs; /* success*/ 259 260 } 261 #endif /* FreeBSD */ 262 263 /* 264 *** 265 * Mounting non-root file system or updating a file system 266 *** 267 */ 268 269 /* copy in user arguments*/ 270 error = copyin(data, (caddr_t)&args, sizeof (struct ntfs_args)); 271 if (error) 272 goto error_1; /* can't get arguments*/ 273 274 /* 275 * If updating, check whether changing from read-only to 276 * read/write; if there is no device name, that's all we do. 277 */ 278 if (mp->mnt_flag & MNT_UPDATE) { 279 /* if not updating name...*/ 280 if (args.fspec == NULL) { 281 /* 282 * Process export requests. Jumping to "success" 283 * will return the vfs_export() error code. 284 */ 285 struct ntfsmount *ntm = VFSTONTFS(mp); 286 error = vfs_export(mp, &ntm->ntm_export, &args.export); 287 goto success; 288 } 289 290 kprintf("ntfs_mount(): MNT_UPDATE not supported\n"); 291 error = EINVAL; 292 goto error_1; 293 } 294 295 /* 296 * Not an update, or updating the name: look up the name 297 * and verify that it refers to a sensible block device. 298 */ 299 devvp = NULL; 300 error = nlookup_init(&nd, args.fspec, UIO_USERSPACE, NLC_FOLLOW); 301 if (error == 0) 302 error = nlookup(&nd); 303 if (error == 0) 304 error = cache_vref(&nd.nl_nch, nd.nl_cred, &devvp); 305 nlookup_done(&nd); 306 if (error) 307 goto error_1; 308 309 #if defined(__DragonFly__) 310 if (!vn_isdisk(devvp, &error)) 311 goto error_2; 312 #else 313 if (devvp->v_type != VBLK) { 314 error = ENOTBLK; 315 goto error_2; 316 } 317 if (devvp->v_umajor >= nblkdev) { 318 error = ENXIO; 319 goto error_2; 320 } 321 #endif 322 if (mp->mnt_flag & MNT_UPDATE) { 323 #if 0 324 /* 325 ******************** 326 * UPDATE 327 ******************** 328 */ 329 330 if (devvp != ntmp->um_devvp) 331 error = EINVAL; /* needs translation */ 332 else 333 vrele(devvp); 334 /* 335 * Update device name only on success 336 */ 337 if( !error) { 338 /* Save "mounted from" info for mount point (NULL pad)*/ 339 copyinstr( args.fspec, 340 mp->mnt_stat.f_mntfromname, 341 MNAMELEN - 1, 342 &size); 343 bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size); 344 } 345 #endif 346 } else { 347 /* 348 ******************** 349 * NEW MOUNT 350 ******************** 351 */ 352 353 /* Save "mounted from" info for mount point (NULL pad)*/ 354 copyinstr( args.fspec, /* device name*/ 355 mp->mnt_stat.f_mntfromname, /* save area*/ 356 MNAMELEN - 1, /* max size*/ 357 &size); /* real size*/ 358 bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size); 359 360 error = ntfs_mountfs(devvp, mp, &args, cred); 361 } 362 if (error) { 363 goto error_2; 364 } 365 366 #ifdef __DragonFly__ 367 dostatfs: 368 #endif 369 /* 370 * Initialize FS stat information in mount struct; uses 371 * mp->mnt_stat.f_mntfromname. 372 * 373 * This code is common to root and non-root mounts 374 */ 375 (void)VFS_STATFS(mp, &mp->mnt_stat, cred); 376 377 goto success; 378 379 380 error_2: /* error with devvp held*/ 381 382 /* release devvp before failing*/ 383 vrele(devvp); 384 385 error_1: /* no state to back out*/ 386 387 success: 388 return(error); 389 } 390 391 /* 392 * Common code for mount and mountroot 393 */ 394 int 395 ntfs_mountfs(struct vnode *devvp, struct mount *mp, struct ntfs_args *argsp, 396 struct ucred *cred) 397 { 398 struct buf *bp; 399 struct ntfsmount *ntmp; 400 cdev_t dev; 401 int error, ronly, ncount, i; 402 struct vnode *vp; 403 char cs_local[ICONV_CSNMAXLEN]; 404 char cs_ntfs[ICONV_CSNMAXLEN]; 405 406 /* 407 * Disallow multiple mounts of the same device. 408 * Disallow mounting of a device that is currently in use 409 * (except for root, which might share swap device for miniroot). 410 * Flush out any old buffers remaining from a previous use. 411 */ 412 error = vfs_mountedon(devvp); 413 if (error) 414 return (error); 415 ncount = vcount(devvp); 416 #if defined(__DragonFly__) 417 if (devvp->v_object) 418 ncount -= 1; 419 #endif 420 if (ncount > 1) 421 return (EBUSY); 422 #if defined(__DragonFly__) 423 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY); 424 error = vinvalbuf(devvp, V_SAVE, 0, 0); 425 VOP__UNLOCK(devvp, 0); 426 #else 427 error = vinvalbuf(devvp, V_SAVE, 0, 0); 428 #endif 429 if (error) 430 return (error); 431 432 ronly = (mp->mnt_flag & MNT_RDONLY) != 0; 433 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY); 434 error = VOP_OPEN(devvp, ronly ? FREAD : FREAD|FWRITE, FSCRED, NULL); 435 VOP__UNLOCK(devvp, 0); 436 if (error) 437 return (error); 438 dev = devvp->v_rdev; 439 440 bp = NULL; 441 442 error = bread(devvp, BBLOCK, BBSIZE, &bp); 443 if (error) 444 goto out; 445 ntmp = kmalloc(sizeof *ntmp, M_NTFSMNT, M_WAITOK | M_ZERO); 446 bcopy( bp->b_data, &ntmp->ntm_bootfile, sizeof(struct bootfile) ); 447 brelse( bp ); 448 bp = NULL; 449 450 if (strncmp(ntmp->ntm_bootfile.bf_sysid, NTFS_BBID, NTFS_BBIDLEN)) { 451 error = EINVAL; 452 dprintf(("ntfs_mountfs: invalid boot block\n")); 453 goto out; 454 } 455 456 { 457 int8_t cpr = ntmp->ntm_mftrecsz; 458 if( cpr > 0 ) 459 ntmp->ntm_bpmftrec = ntmp->ntm_spc * cpr; 460 else 461 ntmp->ntm_bpmftrec = (1 << (-cpr)) / ntmp->ntm_bps; 462 } 463 dprintf(("ntfs_mountfs(): bps: %d, spc: %d, media: %x, mftrecsz: %d (%d sects)\n", 464 ntmp->ntm_bps,ntmp->ntm_spc,ntmp->ntm_bootfile.bf_media, 465 ntmp->ntm_mftrecsz,ntmp->ntm_bpmftrec)); 466 dprintf(("ntfs_mountfs(): mftcn: 0x%x|0x%x\n", 467 (u_int32_t)ntmp->ntm_mftcn,(u_int32_t)ntmp->ntm_mftmirrcn)); 468 469 ntmp->ntm_mountp = mp; 470 ntmp->ntm_dev = dev; 471 ntmp->ntm_devvp = devvp; 472 ntmp->ntm_uid = argsp->uid; 473 ntmp->ntm_gid = argsp->gid; 474 ntmp->ntm_mode = argsp->mode; 475 ntmp->ntm_flag = argsp->flag; 476 477 if (argsp->flag & NTFS_MFLAG_KICONV && ntfs_iconv) { 478 bcopy(argsp->cs_local, cs_local, sizeof(cs_local)); 479 bcopy(argsp->cs_ntfs, cs_ntfs, sizeof(cs_ntfs)); 480 ntfs_82u_init(ntmp, cs_local, cs_ntfs); 481 ntfs_u28_init(ntmp, NULL, cs_local, cs_ntfs); 482 } else { 483 ntfs_82u_init(ntmp, NULL, NULL); 484 ntfs_u28_init(ntmp, ntmp->ntm_82u, NULL, NULL); 485 } 486 487 mp->mnt_data = (qaddr_t)ntmp; 488 489 dprintf(("ntfs_mountfs(): case-%s,%s uid: %d, gid: %d, mode: %o\n", 490 (ntmp->ntm_flag & NTFS_MFLAG_CASEINS)?"insens.":"sens.", 491 (ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES)?" allnames,":"", 492 ntmp->ntm_uid, ntmp->ntm_gid, ntmp->ntm_mode)); 493 494 vfs_add_vnodeops(mp, &ntfs_vnode_vops, &mp->mnt_vn_norm_ops); 495 496 /* 497 * We read in some system nodes to do not allow 498 * reclaim them and to have everytime access to them. 499 */ 500 { 501 int pi[3] = { NTFS_MFTINO, NTFS_ROOTINO, NTFS_BITMAPINO }; 502 for (i=0; i<3; i++) { 503 error = VFS_VGET(mp, NULL, 504 pi[i], &(ntmp->ntm_sysvn[pi[i]])); 505 if(error) 506 goto out1; 507 vsetflags(ntmp->ntm_sysvn[pi[i]], VSYSTEM); 508 vref(ntmp->ntm_sysvn[pi[i]]); 509 vput(ntmp->ntm_sysvn[pi[i]]); 510 } 511 } 512 513 /* read the Unicode lowercase --> uppercase translation table, 514 * if necessary */ 515 if ((error = ntfs_toupper_use(mp, ntmp))) 516 goto out1; 517 518 /* 519 * Scan $BitMap and count free clusters 520 */ 521 error = ntfs_calccfree(ntmp, &ntmp->ntm_cfree); 522 if(error) 523 goto out1; 524 525 /* 526 * Read and translate to internal format attribute 527 * definition file. 528 */ 529 { 530 int num,j; 531 struct attrdef ad; 532 533 /* Open $AttrDef */ 534 error = VFS_VGET(mp, NULL, NTFS_ATTRDEFINO, &vp); 535 if(error) 536 goto out1; 537 538 /* Count valid entries */ 539 for(num=0;;num++) { 540 error = ntfs_readattr(ntmp, VTONT(vp), 541 NTFS_A_DATA, NULL, 542 num * sizeof(ad), sizeof(ad), 543 &ad, NULL); 544 if (error) 545 goto out1; 546 if (ad.ad_name[0] == 0) 547 break; 548 } 549 550 /* Alloc memory for attribute definitions */ 551 ntmp->ntm_ad = kmalloc(num * sizeof(struct ntvattrdef), 552 M_NTFSMNT, M_WAITOK); 553 554 ntmp->ntm_adnum = num; 555 556 /* Read them and translate */ 557 for(i=0;i<num;i++){ 558 error = ntfs_readattr(ntmp, VTONT(vp), 559 NTFS_A_DATA, NULL, 560 i * sizeof(ad), sizeof(ad), 561 &ad, NULL); 562 if (error) 563 goto out1; 564 j = 0; 565 do { 566 ntmp->ntm_ad[i].ad_name[j] = ad.ad_name[j]; 567 } while(ad.ad_name[j++]); 568 ntmp->ntm_ad[i].ad_namelen = j - 1; 569 ntmp->ntm_ad[i].ad_type = ad.ad_type; 570 } 571 572 vput(vp); 573 } 574 575 #if defined(__DragonFly__) 576 mp->mnt_stat.f_fsid.val[0] = dev2udev(dev); 577 mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum; 578 #else 579 mp->mnt_stat.f_fsid.val[0] = dev; 580 mp->mnt_stat.f_fsid.val[1] = makefstype(MOUNT_NTFS); 581 #endif 582 mp->mnt_maxsymlinklen = 0; 583 mp->mnt_flag |= MNT_LOCAL; 584 dev->si_mountpoint = mp; 585 586 return (0); 587 588 out1: 589 for(i=0;i<NTFS_SYSNODESNUM;i++) 590 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 591 592 if (vflush(mp, 0, 0)) 593 dprintf(("ntfs_mountfs: vflush failed\n")); 594 595 out: 596 dev->si_mountpoint = NULL; 597 if (bp) 598 brelse(bp); 599 600 #if defined __NetBSD__ 601 /* lock the device vnode before calling VOP_CLOSE() */ 602 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY); 603 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE); 604 VOP__UNLOCK(devvp, 0); 605 #else 606 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE); 607 #endif 608 609 return (error); 610 } 611 612 #if !defined(__DragonFly__) 613 static int 614 ntfs_start(struct mount *mp, int flags, struct thread *td) 615 { 616 return (0); 617 } 618 #endif 619 620 static int 621 ntfs_unmount(struct mount *mp, int mntflags) 622 { 623 struct ntfsmount *ntmp; 624 int error, ronly, flags, i; 625 626 dprintf(("ntfs_unmount: unmounting...\n")); 627 ntmp = VFSTONTFS(mp); 628 629 ronly = (mp->mnt_flag & MNT_RDONLY) != 0; 630 flags = 0; 631 if(mntflags & MNT_FORCE) 632 flags |= FORCECLOSE; 633 634 dprintf(("ntfs_unmount: vflushing...\n")); 635 error = vflush(mp, 0, flags | SKIPSYSTEM); 636 if (error) { 637 kprintf("ntfs_unmount: vflush failed: %d\n",error); 638 return (error); 639 } 640 641 /* Check if only system vnodes are left */ 642 for(i=0;i<NTFS_SYSNODESNUM;i++) 643 if((ntmp->ntm_sysvn[i]) && 644 (ntmp->ntm_sysvn[i]->v_sysref.refcnt > 1)) return (EBUSY); 645 646 /* Dereference all system vnodes */ 647 for(i=0;i<NTFS_SYSNODESNUM;i++) 648 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 649 650 /* vflush system vnodes */ 651 error = vflush(mp, 0, flags); 652 if (error) 653 kprintf("ntfs_unmount: vflush failed(sysnodes): %d\n",error); 654 655 /* Check if the type of device node isn't VBAD before 656 * touching v_cdevinfo. If the device vnode is revoked, the 657 * field is NULL and touching it causes null pointer derefercence. 658 */ 659 if (ntmp->ntm_devvp->v_type != VBAD) 660 ntmp->ntm_devvp->v_rdev->si_mountpoint = NULL; 661 662 vinvalbuf(ntmp->ntm_devvp, V_SAVE, 0, 0); 663 664 error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE); 665 666 vrele(ntmp->ntm_devvp); 667 668 /* free the toupper table, if this has been last mounted ntfs volume */ 669 ntfs_toupper_unuse(); 670 671 dprintf(("ntfs_umount: freeing memory...\n")); 672 ntfs_u28_uninit(ntmp); 673 ntfs_82u_uninit(ntmp); 674 mp->mnt_data = (qaddr_t)0; 675 mp->mnt_flag &= ~MNT_LOCAL; 676 kfree(ntmp->ntm_ad, M_NTFSMNT); 677 kfree(ntmp, M_NTFSMNT); 678 return (error); 679 } 680 681 static int 682 ntfs_root(struct mount *mp, struct vnode **vpp) 683 { 684 struct vnode *nvp; 685 int error = 0; 686 687 dprintf(("ntfs_root(): sysvn: %p\n", 688 VFSTONTFS(mp)->ntm_sysvn[NTFS_ROOTINO])); 689 error = VFS_VGET(mp, NULL, (ino_t)NTFS_ROOTINO, &nvp); 690 if(error) { 691 kprintf("ntfs_root: VFS_VGET failed: %d\n",error); 692 return (error); 693 } 694 695 *vpp = nvp; 696 return (0); 697 } 698 699 #if !defined(__DragonFly__) 700 static int 701 ntfs_quotactl(struct mount *mp, int cmds, uid_t uid, caddr_t arg, 702 struct thread *td) 703 { 704 kprintf("\nntfs_quotactl():\n"); 705 return EOPNOTSUPP; 706 } 707 #endif 708 709 int 710 ntfs_calccfree(struct ntfsmount *ntmp, cn_t *cfreep) 711 { 712 struct vnode *vp; 713 u_int8_t *tmp; 714 int j, error; 715 long cfree = 0; 716 size_t bmsize, i; 717 718 vp = ntmp->ntm_sysvn[NTFS_BITMAPINO]; 719 720 bmsize = VTOF(vp)->f_size; 721 722 tmp = kmalloc(bmsize, M_TEMP, M_WAITOK); 723 724 error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL, 725 0, bmsize, tmp, NULL); 726 if (error) 727 goto out; 728 729 for(i=0;i<bmsize;i++) 730 for(j=0;j<8;j++) 731 if(~tmp[i] & (1 << j)) cfree++; 732 *cfreep = cfree; 733 734 out: 735 kfree(tmp, M_TEMP); 736 return(error); 737 } 738 739 static int 740 ntfs_statfs(struct mount *mp, struct statfs *sbp, struct ucred *cred) 741 { 742 struct ntfsmount *ntmp = VFSTONTFS(mp); 743 u_int64_t mftallocated; 744 745 dprintf(("ntfs_statfs():\n")); 746 747 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 static int 776 ntfs_statvfs(struct mount *mp, struct statvfs *sbp, struct ucred *cred) 777 { 778 struct ntfsmount *ntmp = VFSTONTFS(mp); 779 u_int64_t mftallocated; 780 781 dprintf(("ntfs_statvfs():\n")); 782 783 mftallocated = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_allocated; 784 785 sbp->f_type = mp->mnt_vfc->vfc_typenum; 786 sbp->f_bsize = ntmp->ntm_bps; 787 sbp->f_blocks = ntmp->ntm_bootfile.bf_spv; 788 sbp->f_bfree = sbp->f_bavail = ntmp->ntm_cfree * ntmp->ntm_spc; 789 sbp->f_ffree = sbp->f_bfree / ntmp->ntm_bpmftrec; 790 sbp->f_files = mftallocated / (ntmp->ntm_bpmftrec * ntmp->ntm_bps) + 791 sbp->f_ffree; 792 793 return (0); 794 } 795 796 #if !defined(__DragonFly__) 797 static int 798 ntfs_sync(struct mount *mp, int waitfor, struct ucred *cred, struct thread *td) 799 { 800 /*dprintf(("ntfs_sync():\n"));*/ 801 return (0); 802 } 803 #endif 804 805 /*ARGSUSED*/ 806 static int 807 ntfs_fhtovp(struct mount *mp, struct vnode *rootvp, 808 struct fid *fhp, struct vnode **vpp) 809 { 810 struct vnode *nvp; 811 struct ntfid *ntfhp = (struct ntfid *)fhp; 812 int error; 813 814 ddprintf(("ntfs_fhtovp(): %d\n", ntfhp->ntfid_ino)); 815 816 if ((error = VFS_VGET(mp, NULL, ntfhp->ntfid_ino, &nvp)) != 0) { 817 *vpp = NULLVP; 818 return (error); 819 } 820 /* XXX as unlink/rmdir/mkdir/creat are not currently possible 821 * with NTFS, we don't need to check anything else for now */ 822 *vpp = nvp; 823 824 return (0); 825 } 826 827 static int 828 ntfs_vptofh(struct vnode *vp, struct fid *fhp) 829 { 830 struct ntnode *ntp; 831 struct ntfid *ntfhp; 832 833 ddprintf(("ntfs_fhtovp(): %p\n", vp)); 834 835 ntp = VTONT(vp); 836 ntfhp = (struct ntfid *)fhp; 837 ntfhp->ntfid_len = sizeof(struct ntfid); 838 ntfhp->ntfid_ino = ntp->i_number; 839 /* ntfhp->ntfid_gen = ntp->i_gen; */ 840 return (0); 841 } 842 843 int 844 ntfs_vgetex(struct mount *mp, ino_t ino, u_int32_t attrtype, char *attrname, 845 u_long lkflags, u_long flags, struct thread *td, 846 struct vnode **vpp) 847 { 848 int error; 849 struct ntfsmount *ntmp; 850 struct ntnode *ip; 851 struct fnode *fp; 852 struct vnode *vp; 853 enum vtype f_type; 854 855 dprintf(("ntfs_vgetex: ino: %ju, attr: 0x%x:%s, lkf: 0x%lx, f: 0x%lx\n", 856 (uintmax_t) ino, attrtype, attrname?attrname:"", lkflags, flags)); 857 858 ntmp = VFSTONTFS(mp); 859 *vpp = NULL; 860 861 /* Get ntnode */ 862 error = ntfs_ntlookup(ntmp, ino, &ip); 863 if (error) { 864 kprintf("ntfs_vget: ntfs_ntget failed\n"); 865 return (error); 866 } 867 868 /* It may be not initialized fully, so force load it */ 869 if (!(flags & VG_DONTLOADIN) && !(ip->i_flag & IN_LOADED)) { 870 error = ntfs_loadntnode(ntmp, ip); 871 if(error) { 872 kprintf("ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO: %"PRId64"\n", 873 ip->i_number); 874 ntfs_ntput(ip); 875 return (error); 876 } 877 } 878 879 error = ntfs_fget(ntmp, ip, attrtype, attrname, &fp); 880 if (error) { 881 kprintf("ntfs_vget: ntfs_fget failed\n"); 882 ntfs_ntput(ip); 883 return (error); 884 } 885 886 f_type = VINT; 887 if (!(flags & VG_DONTVALIDFN) && !(fp->f_flag & FN_VALID)) { 888 if ((ip->i_frflag & NTFS_FRFLAG_DIR) && 889 (fp->f_attrtype == NTFS_A_DATA && fp->f_attrname == NULL)) { 890 f_type = VDIR; 891 } else if (flags & VG_EXT) { 892 f_type = VINT; 893 fp->f_size = fp->f_allocated = 0; 894 } else { 895 f_type = VREG; 896 897 error = ntfs_filesize(ntmp, fp, 898 &fp->f_size, &fp->f_allocated); 899 if (error) { 900 ntfs_ntput(ip); 901 return (error); 902 } 903 } 904 905 fp->f_flag |= FN_VALID; 906 } 907 908 if (FTOV(fp)) { 909 VGET(FTOV(fp), lkflags); 910 *vpp = FTOV(fp); 911 ntfs_ntput(ip); 912 return (0); 913 } 914 915 error = getnewvnode(VT_NTFS, ntmp->ntm_mountp, &vp, VLKTIMEOUT, 0); 916 if(error) { 917 ntfs_frele(fp); 918 ntfs_ntput(ip); 919 return (error); 920 } 921 dprintf(("ntfs_vget: vnode: %p for ntnode: %ju\n", vp, (uintmax_t)ino)); 922 923 fp->f_vp = vp; 924 vp->v_data = fp; 925 vp->v_type = f_type; 926 927 if (ino == NTFS_ROOTINO) 928 vsetflags(vp, VROOT); 929 930 /* 931 * Normal files use the buffer cache 932 */ 933 if (f_type == VREG) 934 vinitvmio(vp, fp->f_size, PAGE_SIZE, -1); 935 936 ntfs_ntput(ip); 937 938 KKASSERT(lkflags & LK_TYPE_MASK); 939 /* XXX leave vnode locked exclusively from getnewvnode */ 940 *vpp = vp; 941 return (0); 942 943 } 944 945 static int 946 ntfs_vget(struct mount *mp, struct vnode *dvp, ino_t ino, struct vnode **vpp) 947 { 948 return ntfs_vgetex(mp, ino, NTFS_A_DATA, NULL, 949 LK_EXCLUSIVE | LK_RETRY, 0, curthread, vpp); 950 } 951 952 #if defined(__DragonFly__) 953 static struct vfsops ntfs_vfsops = { 954 .vfs_mount = ntfs_mount, 955 .vfs_unmount = ntfs_unmount, 956 .vfs_root = ntfs_root, 957 .vfs_statfs = ntfs_statfs, 958 .vfs_statvfs = ntfs_statvfs, 959 .vfs_sync = vfs_stdsync, 960 .vfs_vget = ntfs_vget, 961 .vfs_fhtovp = ntfs_fhtovp, 962 .vfs_checkexp = ntfs_checkexp, 963 .vfs_vptofh = ntfs_vptofh, 964 .vfs_init = ntfs_init, 965 .vfs_uninit = ntfs_nthash_uninit /* see ntfs_ihash.c */ 966 }; 967 VFS_SET(ntfs_vfsops, ntfs, 0); 968 MODULE_VERSION(ntfs, 1); 969 #elif defined(__NetBSD__) 970 extern struct vnodeopv_desc ntfs_vnodeop_opv_desc; 971 972 struct vnodeopv_desc *ntfs_vnodeopv_descs[] = { 973 &ntfs_vnodeop_opv_desc, 974 NULL, 975 }; 976 977 struct vfsops ntfs_vfsops = { 978 MOUNT_NTFS, 979 ntfs_mount, 980 ntfs_start, 981 ntfs_unmount, 982 ntfs_root, 983 ntfs_quotactl, 984 ntfs_statfs, 985 ntfs_sync, 986 ntfs_vget, 987 ntfs_fhtovp, 988 ntfs_vptofh, 989 ntfs_init, 990 ntfs_sysctl, 991 ntfs_mountroot, 992 ntfs_checkexp, 993 ntfs_vnodeopv_descs, 994 }; 995 #else /* !NetBSD && !FreeBSD */ 996 static struct vfsops ntfs_vfsops = { 997 ntfs_mount, 998 ntfs_start, 999 ntfs_unmount, 1000 ntfs_root, 1001 ntfs_quotactl, 1002 ntfs_statfs, 1003 ntfs_sync, 1004 ntfs_vget, 1005 ntfs_fhtovp, 1006 ntfs_vptofh, 1007 ntfs_init, 1008 }; 1009 VFS_SET(ntfs_vfsops, ntfs, MOUNT_NTFS, 0); 1010 #endif 1011 1012 1013