ntfs_vfsops.c revision 1.34.2.1
1 /* $NetBSD: ntfs_vfsops.c,v 1.34.2.1 2005/10/26 08:32:51 yamt 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 * Id: ntfs_vfsops.c,v 1.7 1999/05/31 11:28:30 phk Exp 29 */ 30 31 #include <sys/cdefs.h> 32 __KERNEL_RCSID(0, "$NetBSD: ntfs_vfsops.c,v 1.34.2.1 2005/10/26 08:32:51 yamt Exp $"); 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/namei.h> 37 #include <sys/proc.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/sysctl.h> 45 #include <sys/device.h> 46 #include <sys/conf.h> 47 48 #if defined(__NetBSD__) 49 #include <uvm/uvm_extern.h> 50 #else 51 #include <vm/vm.h> 52 #endif 53 54 #include <miscfs/specfs/specdev.h> 55 56 #include <fs/ntfs/ntfs.h> 57 #include <fs/ntfs/ntfs_inode.h> 58 #include <fs/ntfs/ntfs_subr.h> 59 #include <fs/ntfs/ntfs_vfsops.h> 60 #include <fs/ntfs/ntfs_ihash.h> 61 #include <fs/ntfs/ntfsmount.h> 62 63 MALLOC_DEFINE(M_NTFSMNT, "NTFS mount", "NTFS mount structure"); 64 MALLOC_DEFINE(M_NTFSNTNODE,"NTFS ntnode", "NTFS ntnode information"); 65 MALLOC_DEFINE(M_NTFSFNODE,"NTFS fnode", "NTFS fnode information"); 66 MALLOC_DEFINE(M_NTFSDIR,"NTFS dir", "NTFS dir buffer"); 67 68 #if defined(__FreeBSD__) 69 static int ntfs_mount(struct mount *, char *, caddr_t, 70 struct nameidata *, struct proc *); 71 #else 72 static int ntfs_mount(struct mount *, const char *, void *, 73 struct nameidata *, struct proc *); 74 #endif 75 static int ntfs_quotactl(struct mount *, int, uid_t, void *, 76 struct proc *); 77 static int ntfs_root(struct mount *, struct vnode **); 78 static int ntfs_start(struct mount *, int, struct proc *); 79 static int ntfs_statvfs(struct mount *, struct statvfs *, 80 struct proc *); 81 static int ntfs_sync(struct mount *, int, struct ucred *, 82 struct proc *); 83 static int ntfs_unmount(struct mount *, int, struct proc *); 84 static int ntfs_vget(struct mount *mp, ino_t ino, 85 struct vnode **vpp); 86 static int ntfs_mountfs(struct vnode *, struct mount *, 87 struct ntfs_args *, struct proc *); 88 static int ntfs_vptofh(struct vnode *, struct fid *); 89 90 #if defined(__FreeBSD__) 91 static int ntfs_init(struct vfsconf *); 92 static int ntfs_fhtovp(struct mount *, struct fid *, 93 struct sockaddr *, struct vnode **, 94 int *, struct ucred **); 95 #elif defined(__NetBSD__) 96 static void ntfs_init(void); 97 static void ntfs_reinit(void); 98 static void ntfs_done(void); 99 static int ntfs_fhtovp(struct mount *, struct fid *, 100 struct vnode **); 101 static int ntfs_mountroot(void); 102 #else 103 static int ntfs_init(void); 104 static int ntfs_fhtovp(struct mount *, struct fid *, 105 struct mbuf *, struct vnode **, 106 int *, struct ucred **); 107 #endif 108 109 static const struct genfs_ops ntfs_genfsops = { 110 .gop_write = genfs_compat_gop_write, 111 }; 112 113 #ifdef __NetBSD__ 114 115 SYSCTL_SETUP(sysctl_vfs_ntfs_setup, "sysctl vfs.ntfs subtree setup") 116 { 117 118 sysctl_createv(clog, 0, NULL, NULL, 119 CTLFLAG_PERMANENT, 120 CTLTYPE_NODE, "vfs", NULL, 121 NULL, 0, NULL, 0, 122 CTL_VFS, CTL_EOL); 123 sysctl_createv(clog, 0, NULL, NULL, 124 CTLFLAG_PERMANENT, 125 CTLTYPE_NODE, "ntfs", 126 SYSCTL_DESCR("NTFS file system"), 127 NULL, 0, NULL, 0, 128 CTL_VFS, 20, CTL_EOL); 129 /* 130 * XXX the "20" above could be dynamic, thereby eliminating 131 * one more instance of the "number to vfs" mapping problem, 132 * but "20" is the order as taken from sys/mount.h 133 */ 134 } 135 136 static int 137 ntfs_mountroot() 138 { 139 struct mount *mp; 140 struct proc *p = curproc; /* XXX */ 141 int error; 142 struct ntfs_args args; 143 144 if (root_device->dv_class != DV_DISK) 145 return (ENODEV); 146 147 if ((error = vfs_rootmountalloc(MOUNT_NTFS, "root_device", &mp))) { 148 vrele(rootvp); 149 return (error); 150 } 151 152 args.flag = 0; 153 args.uid = 0; 154 args.gid = 0; 155 args.mode = 0777; 156 157 if ((error = ntfs_mountfs(rootvp, mp, &args, p)) != 0) { 158 mp->mnt_op->vfs_refcount--; 159 vfs_unbusy(mp); 160 free(mp, M_MOUNT); 161 return (error); 162 } 163 164 simple_lock(&mountlist_slock); 165 CIRCLEQ_INSERT_TAIL(&mountlist, mp, mnt_list); 166 simple_unlock(&mountlist_slock); 167 (void)ntfs_statvfs(mp, &mp->mnt_stat, p); 168 vfs_unbusy(mp); 169 return (0); 170 } 171 172 static void 173 ntfs_init() 174 { 175 #ifdef _LKM 176 malloc_type_attach(M_NTFSMNT); 177 malloc_type_attach(M_NTFSNTNODE); 178 malloc_type_attach(M_NTFSFNODE); 179 malloc_type_attach(M_NTFSDIR); 180 malloc_type_attach(M_NTFSNTHASH); 181 malloc_type_attach(M_NTFSNTVATTR); 182 malloc_type_attach(M_NTFSRDATA); 183 malloc_type_attach(M_NTFSDECOMP); 184 malloc_type_attach(M_NTFSRUN); 185 #endif 186 ntfs_nthashinit(); 187 ntfs_toupper_init(); 188 } 189 190 static void 191 ntfs_reinit() 192 { 193 ntfs_nthashreinit(); 194 } 195 196 static void 197 ntfs_done() 198 { 199 ntfs_nthashdone(); 200 #ifdef _LKM 201 malloc_type_detach(M_NTFSMNT); 202 malloc_type_detach(M_NTFSNTNODE); 203 malloc_type_detach(M_NTFSFNODE); 204 malloc_type_detach(M_NTFSDIR); 205 malloc_type_detach(M_NTFSNTHASH); 206 malloc_type_detach(M_NTFSNTVATTR); 207 malloc_type_detach(M_NTFSRDATA); 208 malloc_type_detach(M_NTFSDECOMP); 209 malloc_type_detach(M_NTFSRUN); 210 #endif 211 } 212 213 #elif defined(__FreeBSD__) 214 215 static int 216 ntfs_init ( 217 struct vfsconf *vcp ) 218 { 219 ntfs_nthashinit(); 220 ntfs_toupper_init(); 221 return 0; 222 } 223 224 #endif /* NetBSD */ 225 226 static int 227 ntfs_mount ( 228 struct mount *mp, 229 #if defined(__FreeBSD__) 230 char *path, 231 caddr_t data, 232 #else 233 const char *path, 234 void *data, 235 #endif 236 struct nameidata *ndp, 237 struct proc *p ) 238 { 239 int err = 0, flags; 240 struct vnode *devvp; 241 struct ntfs_args args; 242 243 if (mp->mnt_flag & MNT_GETARGS) { 244 struct ntfsmount *ntmp = VFSTONTFS(mp); 245 if (ntmp == NULL) 246 return EIO; 247 args.fspec = NULL; 248 args.uid = ntmp->ntm_uid; 249 args.gid = ntmp->ntm_gid; 250 args.mode = ntmp->ntm_mode; 251 args.flag = ntmp->ntm_flag; 252 return copyout(&args, data, sizeof(args)); 253 } 254 /* 255 *** 256 * Mounting non-root file system or updating a file system 257 *** 258 */ 259 260 /* copy in user arguments*/ 261 err = copyin(data, &args, sizeof (struct ntfs_args)); 262 if (err) 263 return (err); /* can't get arguments*/ 264 265 /* 266 * If updating, check whether changing from read-only to 267 * read/write; if there is no device name, that's all we do. 268 */ 269 if (mp->mnt_flag & MNT_UPDATE) { 270 printf("ntfs_mount(): MNT_UPDATE not supported\n"); 271 return (EINVAL); 272 } 273 274 /* 275 * Not an update, or updating the name: look up the name 276 * and verify that it refers to a sensible block device. 277 */ 278 NDINIT(ndp, LOOKUP, FOLLOW, UIO_USERSPACE, args.fspec, p); 279 err = namei(ndp); 280 if (err) { 281 /* can't get devvp!*/ 282 return (err); 283 } 284 285 devvp = ndp->ni_vp; 286 287 if (devvp->v_type != VBLK) { 288 err = ENOTBLK; 289 goto fail; 290 } 291 #ifdef __FreeBSD__ 292 if (bdevsw(devvp->v_rdev) == NULL) { 293 #else 294 if (bdevsw_lookup(devvp->v_rdev) == NULL) { 295 #endif 296 err = ENXIO; 297 goto fail; 298 } 299 if (mp->mnt_flag & MNT_UPDATE) { 300 #if 0 301 /* 302 ******************** 303 * UPDATE 304 ******************** 305 */ 306 307 if (devvp != ntmp->um_devvp) { 308 err = EINVAL; /* needs translation */ 309 goto fail; 310 } 311 312 /* 313 * Update device name only on success 314 */ 315 err = set_statvfs_info(NULL, UIO_USERSPACE, args.fspec, 316 UIO_USERSPACE, mp, p); 317 if (err) 318 goto fail; 319 320 vrele(devvp); 321 #endif 322 } else { 323 /* 324 ******************** 325 * NEW MOUNT 326 ******************** 327 */ 328 329 /* 330 * Since this is a new mount, we want the names for 331 * the device and the mount point copied in. If an 332 * error occurs, the mountpoint is discarded by the 333 * upper level code. 334 */ 335 336 /* Save "last mounted on" info for mount point (NULL pad)*/ 337 err = set_statvfs_info(path, UIO_USERSPACE, args.fspec, 338 UIO_USERSPACE, mp, p); 339 if (err) 340 goto fail; 341 342 /* 343 * Disallow multiple mounts of the same device. 344 * Disallow mounting of a device that is currently in use 345 * (except for root, which might share swap device for 346 * miniroot). 347 */ 348 err = vfs_mountedon(devvp); 349 if (err) 350 goto fail; 351 if (vcount(devvp) > 1 && devvp != rootvp) { 352 err = EBUSY; 353 goto fail; 354 } 355 if (mp->mnt_flag & MNT_RDONLY) 356 flags = FREAD; 357 else 358 flags = FREAD|FWRITE; 359 err = VOP_OPEN(devvp, flags, FSCRED, p); 360 if (err) 361 goto fail; 362 err = ntfs_mountfs(devvp, mp, &args, p); 363 if (err) { 364 vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY); 365 (void)VOP_CLOSE(devvp, flags, NOCRED, p); 366 VOP_UNLOCK(devvp, 0); 367 goto fail; 368 } 369 } 370 371 #ifdef __FreeBSD__ 372 dostatvfs: 373 #endif 374 /* 375 * Initialize FS stat information in mount struct; uses both 376 * mp->mnt_stat.f_mntonname and mp->mnt_stat.f_mntfromname 377 * 378 * This code is common to root and non-root mounts 379 */ 380 (void)VFS_STATVFS(mp, &mp->mnt_stat, p); 381 return (err); 382 383 fail: 384 vrele(devvp); 385 return (err); 386 } 387 388 /* 389 * Common code for mount and mountroot 390 */ 391 int 392 ntfs_mountfs(devvp, mp, argsp, p) 393 struct vnode *devvp; 394 struct mount *mp; 395 struct ntfs_args *argsp; 396 struct proc *p; 397 { 398 struct buf *bp; 399 struct ntfsmount *ntmp; 400 dev_t dev = devvp->v_rdev; 401 int error, ronly, i; 402 struct vnode *vp; 403 404 /* 405 * Flush out any old buffers remaining from a previous use. 406 */ 407 vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY); 408 error = vinvalbuf(devvp, V_SAVE, p->p_ucred, p, 0, 0); 409 VOP_UNLOCK(devvp, 0); 410 if (error) 411 return (error); 412 413 ronly = (mp->mnt_flag & MNT_RDONLY) != 0; 414 415 bp = NULL; 416 417 error = bread(devvp, BBLOCK, BBSIZE, NOCRED, &bp); 418 if (error) 419 goto out; 420 ntmp = malloc( sizeof *ntmp, M_NTFSMNT, M_WAITOK ); 421 bzero( ntmp, sizeof *ntmp ); 422 bcopy( bp->b_data, &ntmp->ntm_bootfile, sizeof(struct bootfile) ); 423 brelse( bp ); 424 bp = NULL; 425 426 if (strncmp(ntmp->ntm_bootfile.bf_sysid, NTFS_BBID, NTFS_BBIDLEN)) { 427 error = EINVAL; 428 dprintf(("ntfs_mountfs: invalid boot block\n")); 429 goto out; 430 } 431 432 { 433 int8_t cpr = ntmp->ntm_mftrecsz; 434 if( cpr > 0 ) 435 ntmp->ntm_bpmftrec = ntmp->ntm_spc * cpr; 436 else 437 ntmp->ntm_bpmftrec = (1 << (-cpr)) / ntmp->ntm_bps; 438 } 439 dprintf(("ntfs_mountfs(): bps: %d, spc: %d, media: %x, mftrecsz: %d (%d sects)\n", 440 ntmp->ntm_bps,ntmp->ntm_spc,ntmp->ntm_bootfile.bf_media, 441 ntmp->ntm_mftrecsz,ntmp->ntm_bpmftrec)); 442 dprintf(("ntfs_mountfs(): mftcn: 0x%x|0x%x\n", 443 (u_int32_t)ntmp->ntm_mftcn,(u_int32_t)ntmp->ntm_mftmirrcn)); 444 445 ntmp->ntm_mountp = mp; 446 ntmp->ntm_dev = dev; 447 ntmp->ntm_devvp = devvp; 448 ntmp->ntm_uid = argsp->uid; 449 ntmp->ntm_gid = argsp->gid; 450 ntmp->ntm_mode = argsp->mode; 451 ntmp->ntm_flag = argsp->flag; 452 mp->mnt_data = ntmp; 453 454 /* set file name encode/decode hooks XXX utf-8 only for now */ 455 ntmp->ntm_wget = ntfs_utf8_wget; 456 ntmp->ntm_wput = ntfs_utf8_wput; 457 ntmp->ntm_wcmp = ntfs_utf8_wcmp; 458 459 dprintf(("ntfs_mountfs(): case-%s,%s uid: %d, gid: %d, mode: %o\n", 460 (ntmp->ntm_flag & NTFS_MFLAG_CASEINS)?"insens.":"sens.", 461 (ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES)?" allnames,":"", 462 ntmp->ntm_uid, ntmp->ntm_gid, ntmp->ntm_mode)); 463 464 /* 465 * We read in some system nodes to do not allow 466 * reclaim them and to have everytime access to them. 467 */ 468 { 469 int pi[3] = { NTFS_MFTINO, NTFS_ROOTINO, NTFS_BITMAPINO }; 470 for (i=0; i<3; i++) { 471 error = VFS_VGET(mp, pi[i], &(ntmp->ntm_sysvn[pi[i]])); 472 if(error) 473 goto out1; 474 ntmp->ntm_sysvn[pi[i]]->v_flag |= VSYSTEM; 475 VREF(ntmp->ntm_sysvn[pi[i]]); 476 vput(ntmp->ntm_sysvn[pi[i]]); 477 } 478 } 479 480 /* read the Unicode lowercase --> uppercase translation table, 481 * if necessary */ 482 if ((error = ntfs_toupper_use(mp, ntmp))) 483 goto out1; 484 485 /* 486 * Scan $BitMap and count free clusters 487 */ 488 error = ntfs_calccfree(ntmp, &ntmp->ntm_cfree); 489 if(error) 490 goto out1; 491 492 /* 493 * Read and translate to internal format attribute 494 * definition file. 495 */ 496 { 497 int num,j; 498 struct attrdef ad; 499 500 /* Open $AttrDef */ 501 error = VFS_VGET(mp, NTFS_ATTRDEFINO, &vp ); 502 if(error) 503 goto out1; 504 505 /* Count valid entries */ 506 for(num=0;;num++) { 507 error = ntfs_readattr(ntmp, VTONT(vp), 508 NTFS_A_DATA, NULL, 509 num * sizeof(ad), sizeof(ad), 510 &ad, NULL); 511 if (error) 512 goto out1; 513 if (ad.ad_name[0] == 0) 514 break; 515 } 516 517 /* Alloc memory for attribute definitions */ 518 ntmp->ntm_ad = (struct ntvattrdef *) malloc( 519 num * sizeof(struct ntvattrdef), 520 M_NTFSMNT, M_WAITOK); 521 522 ntmp->ntm_adnum = num; 523 524 /* Read them and translate */ 525 for(i=0;i<num;i++){ 526 error = ntfs_readattr(ntmp, VTONT(vp), 527 NTFS_A_DATA, NULL, 528 i * sizeof(ad), sizeof(ad), 529 &ad, NULL); 530 if (error) 531 goto out1; 532 j = 0; 533 do { 534 ntmp->ntm_ad[i].ad_name[j] = ad.ad_name[j]; 535 } while(ad.ad_name[j++]); 536 ntmp->ntm_ad[i].ad_namelen = j - 1; 537 ntmp->ntm_ad[i].ad_type = ad.ad_type; 538 } 539 540 vput(vp); 541 } 542 543 #if defined(__FreeBSD__) 544 mp->mnt_stat.f_fsid.val[0] = dev2udev(dev); 545 mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum; 546 #else 547 mp->mnt_stat.f_fsidx.__fsid_val[0] = dev; 548 mp->mnt_stat.f_fsidx.__fsid_val[1] = makefstype(MOUNT_NTFS); 549 mp->mnt_stat.f_fsid = mp->mnt_stat.f_fsidx.__fsid_val[0]; 550 mp->mnt_stat.f_namemax = NTFS_MAXFILENAME; 551 #endif 552 mp->mnt_flag |= MNT_LOCAL; 553 devvp->v_specmountpoint = mp; 554 return (0); 555 556 out1: 557 for(i=0;i<NTFS_SYSNODESNUM;i++) 558 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 559 560 if (vflush(mp,NULLVP,0)) 561 dprintf(("ntfs_mountfs: vflush failed\n")); 562 563 out: 564 devvp->v_specmountpoint = NULL; 565 if (bp) 566 brelse(bp); 567 568 return (error); 569 } 570 571 static int 572 ntfs_start ( 573 struct mount *mp, 574 int flags, 575 struct proc *p ) 576 { 577 return (0); 578 } 579 580 static int 581 ntfs_unmount( 582 struct mount *mp, 583 int mntflags, 584 struct proc *p) 585 { 586 struct ntfsmount *ntmp; 587 int error, ronly = 0, flags, i; 588 589 dprintf(("ntfs_unmount: unmounting...\n")); 590 ntmp = VFSTONTFS(mp); 591 592 flags = 0; 593 if(mntflags & MNT_FORCE) 594 flags |= FORCECLOSE; 595 596 dprintf(("ntfs_unmount: vflushing...\n")); 597 error = vflush(mp,NULLVP,flags | SKIPSYSTEM); 598 if (error) { 599 dprintf(("ntfs_unmount: vflush failed: %d\n",error)); 600 return (error); 601 } 602 603 /* Check if only system vnodes are rest */ 604 for(i=0;i<NTFS_SYSNODESNUM;i++) 605 if((ntmp->ntm_sysvn[i]) && 606 (ntmp->ntm_sysvn[i]->v_usecount > 1)) return (EBUSY); 607 608 /* Dereference all system vnodes */ 609 for(i=0;i<NTFS_SYSNODESNUM;i++) 610 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 611 612 /* vflush system vnodes */ 613 error = vflush(mp,NULLVP,flags); 614 if (error) { 615 /* XXX should this be panic() ? */ 616 printf("ntfs_unmount: vflush failed(sysnodes): %d\n",error); 617 } 618 619 /* Check if the type of device node isn't VBAD before 620 * touching v_specinfo. If the device vnode is revoked, the 621 * field is NULL and touching it causes null pointer derefercence. 622 */ 623 if (ntmp->ntm_devvp->v_type != VBAD) 624 ntmp->ntm_devvp->v_specmountpoint = NULL; 625 626 vinvalbuf(ntmp->ntm_devvp, V_SAVE, NOCRED, p, 0, 0); 627 628 /* lock the device vnode before calling VOP_CLOSE() */ 629 vn_lock(ntmp->ntm_devvp, LK_EXCLUSIVE | LK_RETRY); 630 error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE, 631 NOCRED, p); 632 VOP_UNLOCK(ntmp->ntm_devvp, 0); 633 634 vrele(ntmp->ntm_devvp); 635 636 /* free the toupper table, if this has been last mounted ntfs volume */ 637 ntfs_toupper_unuse(); 638 639 dprintf(("ntfs_umount: freeing memory...\n")); 640 mp->mnt_data = NULL; 641 mp->mnt_flag &= ~MNT_LOCAL; 642 free(ntmp->ntm_ad, M_NTFSMNT); 643 FREE(ntmp, M_NTFSMNT); 644 return (error); 645 } 646 647 static int 648 ntfs_root( 649 struct mount *mp, 650 struct vnode **vpp ) 651 { 652 struct vnode *nvp; 653 int error = 0; 654 655 dprintf(("ntfs_root(): sysvn: %p\n", 656 VFSTONTFS(mp)->ntm_sysvn[NTFS_ROOTINO])); 657 error = VFS_VGET(mp, (ino_t)NTFS_ROOTINO, &nvp); 658 if(error) { 659 printf("ntfs_root: VFS_VGET failed: %d\n",error); 660 return (error); 661 } 662 663 *vpp = nvp; 664 return (0); 665 } 666 667 /* 668 * Do operations associated with quotas, not supported 669 */ 670 /* ARGSUSED */ 671 static int 672 ntfs_quotactl ( 673 struct mount *mp, 674 int cmds, 675 uid_t uid, 676 void *arg, 677 struct proc *p) 678 { 679 680 return EOPNOTSUPP; 681 } 682 683 int 684 ntfs_calccfree( 685 struct ntfsmount *ntmp, 686 cn_t *cfreep) 687 { 688 struct vnode *vp; 689 u_int8_t *tmp; 690 int j, error; 691 cn_t cfree = 0; 692 size_t bmsize, i; 693 694 vp = ntmp->ntm_sysvn[NTFS_BITMAPINO]; 695 696 bmsize = VTOF(vp)->f_size; 697 698 tmp = (u_int8_t *) malloc(bmsize, M_TEMP, M_WAITOK); 699 700 error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL, 701 0, bmsize, tmp, NULL); 702 if (error) 703 goto out; 704 705 for(i=0;i<bmsize;i++) 706 for(j=0;j<8;j++) 707 if(~tmp[i] & (1 << j)) cfree++; 708 *cfreep = cfree; 709 710 out: 711 free(tmp, M_TEMP); 712 return(error); 713 } 714 715 static int 716 ntfs_statvfs( 717 struct mount *mp, 718 struct statvfs *sbp, 719 struct proc *p) 720 { 721 struct ntfsmount *ntmp = VFSTONTFS(mp); 722 u_int64_t mftallocated; 723 724 dprintf(("ntfs_statvfs():\n")); 725 726 mftallocated = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_allocated; 727 728 #if defined(__FreeBSD__) 729 sbp->f_type = mp->mnt_vfc->vfc_typenum; 730 #endif 731 sbp->f_bsize = ntmp->ntm_bps; 732 sbp->f_frsize = sbp->f_bsize; /* XXX */ 733 sbp->f_iosize = ntmp->ntm_bps * ntmp->ntm_spc; 734 sbp->f_blocks = ntmp->ntm_bootfile.bf_spv; 735 sbp->f_bfree = sbp->f_bavail = ntfs_cntobn(ntmp->ntm_cfree); 736 sbp->f_ffree = sbp->f_favail = sbp->f_bfree / ntmp->ntm_bpmftrec; 737 sbp->f_files = mftallocated / ntfs_bntob(ntmp->ntm_bpmftrec) + 738 sbp->f_ffree; 739 sbp->f_fresvd = sbp->f_bresvd = 0; /* XXX */ 740 sbp->f_flag = mp->mnt_flag; 741 copy_statvfs_info(sbp, mp); 742 return (0); 743 } 744 745 static int 746 ntfs_sync ( 747 struct mount *mp, 748 int waitfor, 749 struct ucred *cred, 750 struct proc *p) 751 { 752 /*dprintf(("ntfs_sync():\n"));*/ 753 return (0); 754 } 755 756 /*ARGSUSED*/ 757 static int 758 ntfs_fhtovp( 759 #if defined(__FreeBSD__) 760 struct mount *mp, 761 struct fid *fhp, 762 struct sockaddr *nam, 763 struct vnode **vpp, 764 int *exflagsp, 765 struct ucred **credanonp) 766 #elif defined(__NetBSD__) 767 struct mount *mp, 768 struct fid *fhp, 769 struct vnode **vpp) 770 #else 771 struct mount *mp, 772 struct fid *fhp, 773 struct mbuf *nam, 774 struct vnode **vpp, 775 int *exflagsp, 776 struct ucred **credanonp) 777 #endif 778 { 779 struct ntfid *ntfhp = (struct ntfid *)fhp; 780 int error; 781 782 ddprintf(("ntfs_fhtovp(): %s: %llu\n", mp->mnt_stat.f_mntonname, 783 (unsigned long long)ntfhp->ntfid_ino)); 784 785 error = ntfs_vgetex(mp, ntfhp->ntfid_ino, ntfhp->ntfid_attr, NULL, 786 LK_EXCLUSIVE | LK_RETRY, 0, curproc, vpp); /* XXX */ 787 if (error != 0) { 788 *vpp = NULLVP; 789 return (error); 790 } 791 792 /* XXX as unlink/rmdir/mkdir/creat are not currently possible 793 * with NTFS, we don't need to check anything else for now */ 794 return (0); 795 } 796 797 static int 798 ntfs_vptofh( 799 struct vnode *vp, 800 struct fid *fhp) 801 { 802 struct ntnode *ntp; 803 struct ntfid *ntfhp; 804 struct fnode *fn; 805 806 ddprintf(("ntfs_fhtovp(): %s: %p\n", vp->v_mount->mnt_stat.f_mntonname, 807 vp)); 808 809 fn = VTOF(vp); 810 ntp = VTONT(vp); 811 ntfhp = (struct ntfid *)fhp; 812 ntfhp->ntfid_len = sizeof(struct ntfid); 813 ntfhp->ntfid_ino = ntp->i_number; 814 ntfhp->ntfid_attr = fn->f_attrtype; 815 #ifdef notyet 816 ntfhp->ntfid_gen = ntp->i_gen; 817 #endif 818 return (0); 819 } 820 821 int 822 ntfs_vgetex( 823 struct mount *mp, 824 ino_t ino, 825 u_int32_t attrtype, 826 char *attrname, 827 u_long lkflags, 828 u_long flags, 829 struct proc *p, 830 struct vnode **vpp) 831 { 832 int error; 833 struct ntfsmount *ntmp; 834 struct ntnode *ip; 835 struct fnode *fp; 836 struct vnode *vp; 837 enum vtype f_type = VBAD; 838 839 dprintf(("ntfs_vgetex: ino: %llu, attr: 0x%x:%s, lkf: 0x%lx, f:" 840 " 0x%lx\n", (unsigned long long)ino, attrtype, 841 attrname ? attrname : "", (u_long)lkflags, (u_long)flags)); 842 843 ntmp = VFSTONTFS(mp); 844 *vpp = NULL; 845 846 /* Get ntnode */ 847 error = ntfs_ntlookup(ntmp, ino, &ip); 848 if (error) { 849 printf("ntfs_vget: ntfs_ntget failed\n"); 850 return (error); 851 } 852 853 /* It may be not initialized fully, so force load it */ 854 if (!(flags & VG_DONTLOADIN) && !(ip->i_flag & IN_LOADED)) { 855 error = ntfs_loadntnode(ntmp, ip); 856 if(error) { 857 printf("ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO:" 858 " %llu\n", (unsigned long long)ip->i_number); 859 ntfs_ntput(ip); 860 return (error); 861 } 862 } 863 864 error = ntfs_fget(ntmp, ip, attrtype, attrname, &fp); 865 if (error) { 866 printf("ntfs_vget: ntfs_fget failed\n"); 867 ntfs_ntput(ip); 868 return (error); 869 } 870 871 if (!(flags & VG_DONTVALIDFN) && !(fp->f_flag & FN_VALID)) { 872 if ((ip->i_frflag & NTFS_FRFLAG_DIR) && 873 (fp->f_attrtype == NTFS_A_DATA && fp->f_attrname == NULL)) { 874 f_type = VDIR; 875 } else if (flags & VG_EXT) { 876 f_type = VNON; 877 fp->f_size = fp->f_allocated = 0; 878 } else { 879 f_type = VREG; 880 881 error = ntfs_filesize(ntmp, fp, 882 &fp->f_size, &fp->f_allocated); 883 if (error) { 884 ntfs_ntput(ip); 885 return (error); 886 } 887 } 888 889 fp->f_flag |= FN_VALID; 890 } 891 892 /* 893 * We may be calling vget() now. To avoid potential deadlock, we need 894 * to release ntnode lock, since due to locking order vnode 895 * lock has to be acquired first. 896 * ntfs_fget() bumped ntnode usecount, so ntnode won't be recycled 897 * prematurely. 898 */ 899 ntfs_ntput(ip); 900 901 if (FTOV(fp)) { 902 /* vget() returns error if the vnode has been recycled */ 903 if (vget(FTOV(fp), lkflags) == 0) { 904 *vpp = FTOV(fp); 905 return (0); 906 } 907 } 908 909 error = getnewvnode(VT_NTFS, ntmp->ntm_mountp, ntfs_vnodeop_p, &vp); 910 if(error) { 911 ntfs_frele(fp); 912 ntfs_ntput(ip); 913 return (error); 914 } 915 dprintf(("ntfs_vget: vnode: %p for ntnode: %llu\n", vp, 916 (unsigned long long)ino)); 917 918 #ifdef __FreeBSD__ 919 lockinit(&fp->f_lock, PINOD, "fnode", 0, 0); 920 #endif 921 fp->f_vp = vp; 922 vp->v_data = fp; 923 if (f_type != VBAD) 924 vp->v_type = f_type; 925 926 if (ino == NTFS_ROOTINO) 927 vp->v_flag |= VROOT; 928 929 if (lkflags & LK_TYPE_MASK) { 930 error = vn_lock(vp, lkflags); 931 if (error) { 932 vput(vp); 933 return (error); 934 } 935 } 936 937 genfs_node_init(vp, &ntfs_genfsops); 938 VREF(ip->i_devvp); 939 *vpp = vp; 940 return (0); 941 } 942 943 static int 944 ntfs_vget( 945 struct mount *mp, 946 ino_t ino, 947 struct vnode **vpp) 948 { 949 return ntfs_vgetex(mp, ino, NTFS_A_DATA, NULL, 950 LK_EXCLUSIVE | LK_RETRY, 0, curproc, vpp); /* XXX */ 951 } 952 953 #if defined(__FreeBSD__) 954 static struct vfsops ntfs_vfsops = { 955 ntfs_mount, 956 ntfs_start, 957 ntfs_unmount, 958 ntfs_root, 959 ntfs_quotactl, 960 ntfs_statvfs, 961 ntfs_sync, 962 ntfs_vget, 963 ntfs_fhtovp, 964 ntfs_vptofh, 965 ntfs_init, 966 NULL 967 }; 968 VFS_SET(ntfs_vfsops, ntfs, 0); 969 #elif defined(__NetBSD__) 970 extern const struct vnodeopv_desc ntfs_vnodeop_opv_desc; 971 972 const struct vnodeopv_desc * const 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_statvfs, 985 ntfs_sync, 986 ntfs_vget, 987 ntfs_fhtovp, 988 ntfs_vptofh, 989 ntfs_init, 990 ntfs_reinit, 991 ntfs_done, 992 ntfs_mountroot, 993 (int (*)(struct mount *, struct vnode *, struct timespec *)) eopnotsupp, 994 vfs_stdextattrctl, 995 ntfs_vnodeopv_descs, 996 }; 997 VFS_ATTACH(ntfs_vfsops); 998 #endif 999
Indexes created Wed Oct 01 15:09:59 GMT 2025