1 /* $OpenBSD: ntfs_vfsops.c,v 1.4 2003/05/24 21:48:05 tedu Exp $ */ 2 /* $NetBSD: ntfs_vfsops.c,v 1.7 2003/04/24 07:50:19 christos Exp $ */ 3 4 /*- 5 * Copyright (c) 1998, 1999 Semen Ustimenko 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * Id: ntfs_vfsops.c,v 1.7 1999/05/31 11:28:30 phk Exp 30 */ 31 32 #include <sys/cdefs.h> 33 #ifdef __KERNEL_RCSID 34 __KERNEL_RCSID(0, "$NetBSD: ntfs_vfsops.c,v 1.7 2003/04/24 07:50:19 christos Exp $"); 35 #endif 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/namei.h> 40 #include <sys/proc.h> 41 #include <sys/kernel.h> 42 #include <sys/vnode.h> 43 #include <sys/mount.h> 44 #include <sys/buf.h> 45 #include <sys/fcntl.h> 46 #include <sys/malloc.h> 47 #include <sys/systm.h> 48 #include <sys/device.h> 49 #include <sys/conf.h> 50 51 #if defined(__NetBSD__) || defined(__OpenBSD__) 52 #include <uvm/uvm_extern.h> 53 #else 54 #include <vm/vm.h> 55 #endif 56 57 #include <miscfs/specfs/specdev.h> 58 59 /*#define NTFS_DEBUG 1*/ 60 #if defined(__FreeBSD__) || defined(__NetBSD__) 61 #include <fs/ntfs/ntfs.h> 62 #include <fs/ntfs/ntfs_inode.h> 63 #include <fs/ntfs/ntfs_subr.h> 64 #include <fs/ntfs/ntfs_vfsops.h> 65 #include <fs/ntfs/ntfs_ihash.h> 66 #include <fs/ntfs/ntfsmount.h> 67 #else 68 #include <ntfs/ntfs.h> 69 #include <ntfs/ntfs_inode.h> 70 #include <ntfs/ntfs_subr.h> 71 #include <ntfs/ntfs_vfsops.h> 72 #include <ntfs/ntfs_ihash.h> 73 #include <ntfs/ntfsmount.h> 74 #endif 75 76 #ifdef MALLOC_DEFINE 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 #if defined(__FreeBSD__) 84 static int ntfs_mount(struct mount *, char *, caddr_t, 85 struct nameidata *, struct proc *); 86 #else 87 static int ntfs_mount(struct mount *, const char *, void *, 88 struct nameidata *, struct proc *); 89 #endif 90 static int ntfs_quotactl(struct mount *, int, uid_t, caddr_t, 91 struct proc *); 92 static int ntfs_root(struct mount *, struct vnode **); 93 static int ntfs_start(struct mount *, int, struct proc *); 94 static int ntfs_statfs(struct mount *, struct statfs *, 95 struct proc *); 96 static int ntfs_sync(struct mount *, int, struct ucred *, 97 struct proc *); 98 static int ntfs_unmount(struct mount *, int, struct proc *); 99 static int ntfs_vget(struct mount *mp, ino_t ino, 100 struct vnode **vpp); 101 static int ntfs_mountfs(struct vnode *, struct mount *, 102 struct ntfs_args *, struct proc *); 103 static int ntfs_vptofh(struct vnode *, struct fid *); 104 105 #if defined(__FreeBSD__) 106 static int ntfs_init(struct vfsconf *); 107 static int ntfs_fhtovp(struct mount *, struct fid *, 108 struct sockaddr *, struct vnode **, 109 int *, struct ucred **); 110 #elif defined(__NetBSD__) 111 static void ntfs_init(void); 112 static void ntfs_reinit(void); 113 static void ntfs_done(void); 114 static int ntfs_fhtovp(struct mount *, struct fid *, 115 struct vnode **); 116 static int ntfs_checkexp(struct mount *, struct mbuf *, 117 int *, struct ucred **); 118 static int ntfs_mountroot(void); 119 static int ntfs_sysctl(int *, u_int, void *, size_t *, void *, 120 size_t, struct proc *); 121 #elif defined(__OpenBSD__) 122 static int ntfs_init(struct vfsconf *); 123 static int ntfs_fhtovp(struct mount *, struct fid *, 124 struct vnode **); 125 static int ntfs_checkexp(struct mount *, struct mbuf *, 126 int *, struct ucred **); 127 static int ntfs_sysctl(int *, u_int, void *, size_t *, void *, 128 size_t, struct proc *); 129 #else 130 static int ntfs_init(void); 131 static int ntfs_fhtovp(struct mount *, struct fid *, 132 struct mbuf *, struct vnode **, 133 int *, struct ucred **); 134 #endif 135 136 #if defined(__FreeBSD__) || defined(__NetBSD__) 137 struct genfs_ops ntfs_genfsops = { 138 NULL, 139 NULL, 140 genfs_compat_gop_write, 141 }; 142 #endif 143 144 #if defined(__NetBSD__) || defined(__OpenBSD__) 145 /* 146 * Verify a remote client has export rights and return these rights via. 147 * exflagsp and credanonp. 148 */ 149 static int 150 ntfs_checkexp(mp, nam, exflagsp, credanonp) 151 struct mount *mp; 152 struct mbuf *nam; 153 int *exflagsp; 154 struct ucred **credanonp; 155 { 156 struct netcred *np; 157 struct ntfsmount *ntm = VFSTONTFS(mp); 158 159 /* 160 * Get the export permission structure for this <mp, client> tuple. 161 */ 162 np = vfs_export_lookup(mp, &ntm->ntm_export, nam); 163 if (np == NULL) 164 return (EACCES); 165 166 *exflagsp = np->netc_exflags; 167 *credanonp = &np->netc_anon; 168 return (0); 169 } 170 171 /*ARGSUSED*/ 172 static int 173 ntfs_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) 174 int *name; 175 u_int namelen; 176 void *oldp; 177 size_t *oldlenp; 178 void *newp; 179 size_t newlen; 180 struct proc *p; 181 { 182 return (EINVAL); 183 } 184 185 #endif 186 187 #ifdef __NetBSD__ 188 static int 189 ntfs_mountroot() 190 { 191 struct mount *mp; 192 struct proc *p = curproc; /* XXX */ 193 int error; 194 struct ntfs_args args; 195 196 if (root_device->dv_class != DV_DISK) 197 return (ENODEV); 198 199 /* 200 * Get vnodes for rootdev. 201 */ 202 if (bdevvp(rootdev, &rootvp)) 203 panic("ntfs_mountroot: can't setup rootvp"); 204 205 if ((error = vfs_rootmountalloc(MOUNT_NTFS, "root_device", &mp))) { 206 vrele(rootvp); 207 return (error); 208 } 209 210 args.flag = 0; 211 args.uid = 0; 212 args.gid = 0; 213 args.mode = 0777; 214 215 if ((error = ntfs_mountfs(rootvp, mp, &args, p)) != 0) { 216 mp->mnt_op->vfs_refcount--; 217 vfs_unbusy(mp); 218 free(mp, M_MOUNT); 219 vrele(rootvp); 220 return (error); 221 } 222 223 simple_lock(&mountlist_slock); 224 CIRCLEQ_INSERT_TAIL(&mountlist, mp, mnt_list); 225 simple_unlock(&mountlist_slock); 226 (void)ntfs_statfs(mp, &mp->mnt_stat, p); 227 vfs_unbusy(mp); 228 return (0); 229 } 230 231 static void 232 ntfs_init() 233 { 234 #ifdef _LKM 235 malloc_type_attach(M_NTFSMNT); 236 malloc_type_attach(M_NTFSNTNODE); 237 malloc_type_attach(M_NTFSFNODE); 238 malloc_type_attach(M_NTFSDIR); 239 malloc_type_attach(M_NTFSNTHASH); 240 malloc_type_attach(M_NTFSNTVATTR); 241 malloc_type_attach(M_NTFSRDATA); 242 malloc_type_attach(M_NTFSDECOMP); 243 malloc_type_attach(M_NTFSRUN); 244 #endif 245 ntfs_nthashinit(); 246 ntfs_toupper_init(); 247 } 248 249 static void 250 ntfs_reinit() 251 { 252 ntfs_nthashreinit(); 253 } 254 255 static void 256 ntfs_done() 257 { 258 ntfs_nthashdone(); 259 #ifdef _LKM 260 malloc_type_detach(M_NTFSMNT); 261 malloc_type_detach(M_NTFSNTNODE); 262 malloc_type_detach(M_NTFSFNODE); 263 malloc_type_detach(M_NTFSDIR); 264 malloc_type_detach(M_NTFSNTHASH); 265 malloc_type_detach(M_NTFSNTVATTR); 266 malloc_type_detach(M_NTFSRDATA); 267 malloc_type_detach(M_NTFSDECOMP); 268 malloc_type_detach(M_NTFSRUN); 269 #endif 270 } 271 272 #elif defined(__FreeBSD__) || defined(__OpenBSD__) 273 274 static int 275 ntfs_init ( 276 struct vfsconf *vcp ) 277 { 278 ntfs_nthashinit(); 279 ntfs_toupper_init(); 280 return 0; 281 } 282 283 #endif /* NetBSD */ 284 285 static int 286 ntfs_mount ( 287 struct mount *mp, 288 #if defined(__FreeBSD__) 289 char *path, 290 caddr_t data, 291 #else 292 const char *path, 293 void *data, 294 #endif 295 struct nameidata *ndp, 296 struct proc *p ) 297 { 298 int err = 0; 299 struct vnode *devvp; 300 struct ntfs_args args; 301 size_t size; 302 303 #ifdef __FreeBSD__ 304 /* 305 * Use NULL path to flag a root mount 306 */ 307 if( path == NULL) { 308 /* 309 *** 310 * Mounting root file system 311 *** 312 */ 313 314 /* Get vnode for root device*/ 315 if( bdevvp( rootdev, &rootvp)) 316 panic("ffs_mountroot: can't setup bdevvp for root"); 317 318 /* 319 * FS specific handling 320 */ 321 mp->mnt_flag |= MNT_RDONLY; /* XXX globally applicable?*/ 322 323 /* 324 * Attempt mount 325 */ 326 if( ( err = ntfs_mountfs(rootvp, mp, &args, p)) != 0) { 327 /* fs specific cleanup (if any)*/ 328 goto error_1; 329 } 330 331 goto dostatfs; /* success*/ 332 333 } 334 #endif /* FreeBSD */ 335 336 #ifdef __NetBSD__ 337 if (mp->mnt_flag & MNT_GETARGS) { 338 struct ntfsmount *ntmp = VFSTONTFS(mp); 339 if (ntmp == NULL) 340 return EIO; 341 args.fspec = NULL; 342 args.uid = ntmp->ntm_uid; 343 args.gid = ntmp->ntm_gid; 344 args.mode = ntmp->ntm_mode; 345 args.flag = ntmp->ntm_flag; 346 vfs_showexport(mp, &args.export, &ntmp->ntm_export); 347 return copyout(&args, data, sizeof(args)); 348 } 349 #endif 350 351 /* 352 *** 353 * Mounting non-root file system or updating a file system 354 *** 355 */ 356 357 /* copy in user arguments*/ 358 err = copyin(data, (caddr_t)&args, sizeof (struct ntfs_args)); 359 if (err) 360 goto error_1; /* can't get arguments*/ 361 362 /* 363 * If updating, check whether changing from read-only to 364 * read/write; if there is no device name, that's all we do. 365 */ 366 if (mp->mnt_flag & MNT_UPDATE) { 367 /* if not updating name...*/ 368 if (args.fspec == 0) { 369 /* 370 * Process export requests. Jumping to "success" 371 * will return the vfs_export() error code. 372 */ 373 struct ntfsmount *ntm = VFSTONTFS(mp); 374 err = vfs_export(mp, &ntm->ntm_export, &args.export_info); 375 goto success; 376 } 377 378 printf("ntfs_mount(): MNT_UPDATE not supported\n"); 379 err = EINVAL; 380 goto error_1; 381 } 382 383 /* 384 * Not an update, or updating the name: look up the name 385 * and verify that it refers to a sensible block device. 386 */ 387 NDINIT(ndp, LOOKUP, FOLLOW, UIO_USERSPACE, args.fspec, p); 388 err = namei(ndp); 389 if (err) { 390 /* can't get devvp!*/ 391 goto error_1; 392 } 393 394 devvp = ndp->ni_vp; 395 396 if (devvp->v_type != VBLK) { 397 err = ENOTBLK; 398 goto error_2; 399 } 400 #ifdef __FreeBSD__ 401 if (bdevsw(devvp->v_rdev) == NULL) { 402 #elif defined(__NetBSD__) 403 if (bdevsw_lookup(devvp->v_rdev) == NULL) { 404 #else 405 if (major(devvp->v_rdev) >= nblkdev) { 406 #endif 407 err = ENXIO; 408 goto error_2; 409 } 410 if (mp->mnt_flag & MNT_UPDATE) { 411 #if 0 412 /* 413 ******************** 414 * UPDATE 415 ******************** 416 */ 417 418 if (devvp != ntmp->um_devvp) 419 err = EINVAL; /* needs translation */ 420 else 421 vrele(devvp); 422 /* 423 * Update device name only on success 424 */ 425 if( !err) { 426 err = set_statfs_info(NULL, UIO_USERSPACE, args.fspec, 427 UIO_USERSPACE, mp, p); 428 } 429 #endif 430 } else { 431 /* 432 ******************** 433 * NEW MOUNT 434 ******************** 435 */ 436 437 /* 438 * Since this is a new mount, we want the names for 439 * the device and the mount point copied in. If an 440 * error occurs, the mountpoint is discarded by the 441 * upper level code. 442 */ 443 /* Save "last mounted on" info for mount point (NULL pad)*/ 444 #if defined(__FreeBSD__) || defined(__NetBSD__) 445 err = set_statfs_info(path, UIO_USERSPACE, args.fspec, 446 UIO_USERSPACE, mp, p); 447 #else 448 (void) copyinstr(path, mp->mnt_stat.f_mntonname, MNAMELEN - 1, 449 &size); 450 bzero(mp->mnt_stat.f_mntonname + size, MNAMELEN - size); 451 (void) copyinstr(args.fspec, mp->mnt_stat.f_mntfromname, 452 MNAMELEN - 1, &size); 453 bzero(mp->mnt_stat.f_mntfromname + size, MNAMELEN - size); 454 bcopy(&args, &mp->mnt_stat.mount_info.ntfs_args, sizeof(args)); 455 #endif 456 if ( !err) { 457 err = ntfs_mountfs(devvp, mp, &args, p); 458 } 459 } 460 if (err) { 461 goto error_2; 462 } 463 464 #ifdef __FreeBSD__ 465 dostatfs: 466 #endif 467 /* 468 * Initialize FS stat information in mount struct; uses both 469 * mp->mnt_stat.f_mntonname and mp->mnt_stat.f_mntfromname 470 * 471 * This code is common to root and non-root mounts 472 */ 473 (void)VFS_STATFS(mp, &mp->mnt_stat, p); 474 475 goto success; 476 477 478 error_2: /* error with devvp held*/ 479 480 /* release devvp before failing*/ 481 vrele(devvp); 482 483 error_1: /* no state to back out*/ 484 485 success: 486 return(err); 487 } 488 489 /* 490 * Common code for mount and mountroot 491 */ 492 int 493 ntfs_mountfs(devvp, mp, argsp, p) 494 struct vnode *devvp; 495 struct mount *mp; 496 struct ntfs_args *argsp; 497 struct proc *p; 498 { 499 struct buf *bp; 500 struct ntfsmount *ntmp; 501 dev_t dev = devvp->v_rdev; 502 int error, ronly, ncount, i; 503 struct vnode *vp; 504 505 /* 506 * Disallow multiple mounts of the same device. 507 * Disallow mounting of a device that is currently in use 508 * (except for root, which might share swap device for miniroot). 509 * Flush out any old buffers remaining from a previous use. 510 */ 511 error = vfs_mountedon(devvp); 512 if (error) 513 return (error); 514 ncount = vcount(devvp); 515 if (ncount > 1 && devvp != rootvp) 516 return (EBUSY); 517 error = vinvalbuf(devvp, V_SAVE, p->p_ucred, p, 0, 0); 518 if (error) 519 return (error); 520 521 ronly = (mp->mnt_flag & MNT_RDONLY) != 0; 522 error = VOP_OPEN(devvp, ronly ? FREAD : FREAD|FWRITE, FSCRED, p); 523 if (error) 524 return (error); 525 526 bp = NULL; 527 528 error = bread(devvp, BBLOCK, BBSIZE, NOCRED, &bp); 529 if (error) 530 goto out; 531 ntmp = malloc( sizeof *ntmp, M_NTFSMNT, M_WAITOK ); 532 bzero( ntmp, sizeof *ntmp ); 533 bcopy( bp->b_data, &ntmp->ntm_bootfile, sizeof(struct bootfile) ); 534 brelse( bp ); 535 bp = NULL; 536 537 if (strncmp(ntmp->ntm_bootfile.bf_sysid, NTFS_BBID, NTFS_BBIDLEN)) { 538 error = EINVAL; 539 dprintf(("ntfs_mountfs: invalid boot block\n")); 540 goto out; 541 } 542 543 { 544 int8_t cpr = ntmp->ntm_mftrecsz; 545 if( cpr > 0 ) 546 ntmp->ntm_bpmftrec = ntmp->ntm_spc * cpr; 547 else 548 ntmp->ntm_bpmftrec = (1 << (-cpr)) / ntmp->ntm_bps; 549 } 550 dprintf(("ntfs_mountfs(): bps: %d, spc: %d, media: %x, mftrecsz: %d (%d sects)\n", 551 ntmp->ntm_bps,ntmp->ntm_spc,ntmp->ntm_bootfile.bf_media, 552 ntmp->ntm_mftrecsz,ntmp->ntm_bpmftrec)); 553 dprintf(("ntfs_mountfs(): mftcn: 0x%x|0x%x\n", 554 (u_int32_t)ntmp->ntm_mftcn,(u_int32_t)ntmp->ntm_mftmirrcn)); 555 556 ntmp->ntm_mountp = mp; 557 ntmp->ntm_dev = dev; 558 ntmp->ntm_devvp = devvp; 559 ntmp->ntm_uid = argsp->uid; 560 ntmp->ntm_gid = argsp->gid; 561 ntmp->ntm_mode = argsp->mode; 562 ntmp->ntm_flag = argsp->flag; 563 #ifdef __OpenBSD__ 564 mp->mnt_data = (qaddr_t) ntmp; 565 #else 566 mp->mnt_data = ntmp; 567 #endif 568 569 /* set file name encode/decode hooks XXX utf-8 only for now */ 570 ntmp->ntm_wget = ntfs_utf8_wget; 571 ntmp->ntm_wput = ntfs_utf8_wput; 572 ntmp->ntm_wcmp = ntfs_utf8_wcmp; 573 574 dprintf(("ntfs_mountfs(): case-%s,%s uid: %d, gid: %d, mode: %o\n", 575 (ntmp->ntm_flag & NTFS_MFLAG_CASEINS)?"insens.":"sens.", 576 (ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES)?" allnames,":"", 577 ntmp->ntm_uid, ntmp->ntm_gid, ntmp->ntm_mode)); 578 579 /* 580 * We read in some system nodes to do not allow 581 * reclaim them and to have everytime access to them. 582 */ 583 { 584 int pi[3] = { NTFS_MFTINO, NTFS_ROOTINO, NTFS_BITMAPINO }; 585 for (i=0; i<3; i++) { 586 error = VFS_VGET(mp, pi[i], &(ntmp->ntm_sysvn[pi[i]])); 587 if(error) 588 goto out1; 589 ntmp->ntm_sysvn[pi[i]]->v_flag |= VSYSTEM; 590 VREF(ntmp->ntm_sysvn[pi[i]]); 591 vput(ntmp->ntm_sysvn[pi[i]]); 592 } 593 } 594 595 /* read the Unicode lowercase --> uppercase translation table, 596 * if necessary */ 597 #ifndef __OpenBSD__ 598 if ((error = ntfs_toupper_use(mp, ntmp))) 599 #else 600 if ((error = ntfs_toupper_use(mp, ntmp, p))) 601 #endif 602 goto out1; 603 604 /* 605 * Scan $BitMap and count free clusters 606 */ 607 error = ntfs_calccfree(ntmp, &ntmp->ntm_cfree); 608 if(error) 609 goto out1; 610 611 /* 612 * Read and translate to internal format attribute 613 * definition file. 614 */ 615 { 616 int num,j; 617 struct attrdef ad; 618 619 /* Open $AttrDef */ 620 error = VFS_VGET(mp, NTFS_ATTRDEFINO, &vp ); 621 if(error) 622 goto out1; 623 624 /* Count valid entries */ 625 for(num=0;;num++) { 626 error = ntfs_readattr(ntmp, VTONT(vp), 627 NTFS_A_DATA, NULL, 628 num * sizeof(ad), sizeof(ad), 629 &ad, NULL); 630 if (error) 631 goto out1; 632 if (ad.ad_name[0] == 0) 633 break; 634 } 635 636 /* Alloc memory for attribute definitions */ 637 ntmp->ntm_ad = (struct ntvattrdef *) malloc( 638 num * sizeof(struct ntvattrdef), 639 M_NTFSMNT, M_WAITOK); 640 641 ntmp->ntm_adnum = num; 642 643 /* Read them and translate */ 644 for(i=0;i<num;i++){ 645 error = ntfs_readattr(ntmp, VTONT(vp), 646 NTFS_A_DATA, NULL, 647 i * sizeof(ad), sizeof(ad), 648 &ad, NULL); 649 if (error) 650 goto out1; 651 j = 0; 652 do { 653 ntmp->ntm_ad[i].ad_name[j] = ad.ad_name[j]; 654 } while(ad.ad_name[j++]); 655 ntmp->ntm_ad[i].ad_namelen = j - 1; 656 ntmp->ntm_ad[i].ad_type = ad.ad_type; 657 } 658 659 vput(vp); 660 } 661 662 #if defined(__FreeBSD__) 663 mp->mnt_stat.f_fsid.val[0] = dev2udev(dev); 664 mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum; 665 #else 666 mp->mnt_stat.f_fsid.val[0] = dev; 667 mp->mnt_stat.f_fsid.val[1] = makefstype(MOUNT_NTFS); 668 #endif 669 mp->mnt_maxsymlinklen = 0; 670 mp->mnt_flag |= MNT_LOCAL; 671 devvp->v_specmountpoint = mp; 672 return (0); 673 674 out1: 675 for(i=0;i<NTFS_SYSNODESNUM;i++) 676 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 677 678 if (vflush(mp,NULLVP,0)) 679 dprintf(("ntfs_mountfs: vflush failed\n")); 680 681 out: 682 devvp->v_specmountpoint = NULL; 683 if (bp) 684 brelse(bp); 685 686 /* lock the device vnode before calling VOP_CLOSE() */ 687 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, p); 688 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, NOCRED, p); 689 VOP__UNLOCK(devvp, 0, p); 690 691 return (error); 692 } 693 694 static int 695 ntfs_start ( 696 struct mount *mp, 697 int flags, 698 struct proc *p ) 699 { 700 return (0); 701 } 702 703 static int 704 ntfs_unmount( 705 struct mount *mp, 706 int mntflags, 707 struct proc *p) 708 { 709 struct ntfsmount *ntmp; 710 int error, ronly = 0, flags, i; 711 712 dprintf(("ntfs_unmount: unmounting...\n")); 713 ntmp = VFSTONTFS(mp); 714 715 flags = 0; 716 if(mntflags & MNT_FORCE) 717 flags |= FORCECLOSE; 718 719 dprintf(("ntfs_unmount: vflushing...\n")); 720 error = vflush(mp,NULLVP,flags | SKIPSYSTEM); 721 if (error) { 722 dprintf(("ntfs_unmount: vflush failed: %d\n",error)); 723 return (error); 724 } 725 726 /* Check if only system vnodes are rest */ 727 for(i=0;i<NTFS_SYSNODESNUM;i++) 728 if((ntmp->ntm_sysvn[i]) && 729 (ntmp->ntm_sysvn[i]->v_usecount > 1)) return (EBUSY); 730 731 /* Dereference all system vnodes */ 732 for(i=0;i<NTFS_SYSNODESNUM;i++) 733 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 734 735 /* vflush system vnodes */ 736 error = vflush(mp,NULLVP,flags); 737 if (error) { 738 /* XXX should this be panic() ? */ 739 printf("ntfs_unmount: vflush failed(sysnodes): %d\n",error); 740 } 741 742 /* Check if the type of device node isn't VBAD before 743 * touching v_specinfo. If the device vnode is revoked, the 744 * field is NULL and touching it causes null pointer derefercence. 745 */ 746 if (ntmp->ntm_devvp->v_type != VBAD) 747 ntmp->ntm_devvp->v_specmountpoint = NULL; 748 749 vinvalbuf(ntmp->ntm_devvp, V_SAVE, NOCRED, p, 0, 0); 750 751 /* lock the device vnode before calling VOP_CLOSE() */ 752 #ifndef __OpenBSD__ 753 VOP_LOCK(ntmp->ntm_devvp, LK_EXCLUSIVE | LK_RETRY); 754 #else 755 VOP_LOCK(ntmp->ntm_devvp, LK_EXCLUSIVE | LK_RETRY, p); 756 #endif 757 error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE, 758 NOCRED, p); 759 VOP__UNLOCK(ntmp->ntm_devvp, 0, p); 760 761 vrele(ntmp->ntm_devvp); 762 763 /* free the toupper table, if this has been last mounted ntfs volume */ 764 #ifndef __OpenBSD__ 765 ntfs_toupper_unuse(); 766 #else 767 ntfs_toupper_unuse(p); 768 #endif 769 770 dprintf(("ntfs_umount: freeing memory...\n")); 771 mp->mnt_data = NULL; 772 mp->mnt_flag &= ~MNT_LOCAL; 773 free(ntmp->ntm_ad, M_NTFSMNT); 774 FREE(ntmp, M_NTFSMNT); 775 return (error); 776 } 777 778 static int 779 ntfs_root( 780 struct mount *mp, 781 struct vnode **vpp ) 782 { 783 struct vnode *nvp; 784 int error = 0; 785 786 dprintf(("ntfs_root(): sysvn: %p\n", 787 VFSTONTFS(mp)->ntm_sysvn[NTFS_ROOTINO])); 788 error = VFS_VGET(mp, (ino_t)NTFS_ROOTINO, &nvp); 789 if(error) { 790 printf("ntfs_root: VFS_VGET failed: %d\n",error); 791 return (error); 792 } 793 794 *vpp = nvp; 795 return (0); 796 } 797 798 static int 799 ntfs_quotactl ( 800 struct mount *mp, 801 int cmds, 802 uid_t uid, 803 caddr_t arg, 804 struct proc *p) 805 { 806 printf("\nntfs_quotactl():\n"); 807 return EOPNOTSUPP; 808 } 809 810 int 811 ntfs_calccfree( 812 struct ntfsmount *ntmp, 813 cn_t *cfreep) 814 { 815 struct vnode *vp; 816 u_int8_t *tmp; 817 int j, error; 818 long cfree = 0; 819 size_t bmsize, i; 820 821 vp = ntmp->ntm_sysvn[NTFS_BITMAPINO]; 822 823 bmsize = VTOF(vp)->f_size; 824 825 tmp = (u_int8_t *) malloc(bmsize, M_TEMP, M_WAITOK); 826 827 error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL, 828 0, bmsize, tmp, NULL); 829 if (error) 830 goto out; 831 832 for(i=0;i<bmsize;i++) 833 for(j=0;j<8;j++) 834 if(~tmp[i] & (1 << j)) cfree++; 835 *cfreep = cfree; 836 837 out: 838 free(tmp, M_TEMP); 839 return(error); 840 } 841 842 static int 843 ntfs_statfs( 844 struct mount *mp, 845 struct statfs *sbp, 846 struct proc *p) 847 { 848 struct ntfsmount *ntmp = VFSTONTFS(mp); 849 u_int64_t mftallocated; 850 851 dprintf(("ntfs_statfs():\n")); 852 853 mftallocated = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_allocated; 854 855 #if defined(__FreeBSD__) 856 sbp->f_type = mp->mnt_vfc->vfc_typenum; 857 #elif defined(__NetBSD__) 858 sbp->f_type = 0; 859 #elif !defined(__OpenBSD__) 860 sbp->f_type = MOUNT_NTFS; 861 #endif 862 sbp->f_bsize = ntmp->ntm_bps; 863 sbp->f_iosize = ntmp->ntm_bps * ntmp->ntm_spc; 864 sbp->f_blocks = ntmp->ntm_bootfile.bf_spv; 865 sbp->f_bfree = sbp->f_bavail = ntfs_cntobn(ntmp->ntm_cfree); 866 sbp->f_ffree = sbp->f_bfree / ntmp->ntm_bpmftrec; 867 sbp->f_files = mftallocated / ntfs_bntob(ntmp->ntm_bpmftrec) + 868 sbp->f_ffree; 869 sbp->f_flags = mp->mnt_flag; 870 #if !defined(__OpenBSD__) 871 copy_statfs_info(sbp, mp); 872 #else 873 if (sbp != &mp->mnt_stat) { 874 bcopy(mp->mnt_stat.f_mntonname, sbp->f_mntonname, MNAMELEN); 875 bcopy(mp->mnt_stat.f_mntfromname, sbp->f_mntfromname, MNAMELEN); 876 bcopy(&mp->mnt_stat.mount_info.msdosfs_args, 877 &sbp->mount_info.msdosfs_args, sizeof(struct msdosfs_args)); 878 } 879 strncpy(sbp->f_fstypename, mp->mnt_vfc->vfc_name, MFSNAMELEN); 880 #endif 881 return (0); 882 } 883 884 static int 885 ntfs_sync ( 886 struct mount *mp, 887 int waitfor, 888 struct ucred *cred, 889 struct proc *p) 890 { 891 /*dprintf(("ntfs_sync():\n"));*/ 892 return (0); 893 } 894 895 /*ARGSUSED*/ 896 static int 897 ntfs_fhtovp( 898 #if defined(__FreeBSD__) 899 struct mount *mp, 900 struct fid *fhp, 901 struct sockaddr *nam, 902 struct vnode **vpp, 903 int *exflagsp, 904 struct ucred **credanonp) 905 #elif defined(__NetBSD__) || defined(__OpenBSD__) 906 struct mount *mp, 907 struct fid *fhp, 908 struct vnode **vpp) 909 #else 910 struct mount *mp, 911 struct fid *fhp, 912 struct mbuf *nam, 913 struct vnode **vpp, 914 int *exflagsp, 915 struct ucred **credanonp) 916 #endif 917 { 918 struct ntfid *ntfhp = (struct ntfid *)fhp; 919 int error; 920 921 ddprintf(("ntfs_fhtovp(): %s: %d\n", mp->mnt_stat.f_mntonname, 922 ntfhp->ntfid_ino)); 923 924 error = ntfs_vgetex(mp, ntfhp->ntfid_ino, ntfhp->ntfid_attr, NULL, 925 LK_EXCLUSIVE | LK_RETRY, 0, curproc, vpp); /* XXX */ 926 if (error != 0) { 927 *vpp = NULLVP; 928 return (error); 929 } 930 931 /* XXX as unlink/rmdir/mkdir/creat are not currently possible 932 * with NTFS, we don't need to check anything else for now */ 933 return (0); 934 } 935 936 static int 937 ntfs_vptofh( 938 struct vnode *vp, 939 struct fid *fhp) 940 { 941 struct ntnode *ntp; 942 struct ntfid *ntfhp; 943 struct fnode *fn; 944 945 ddprintf(("ntfs_fhtovp(): %s: %p\n", vp->v_mount->mnt_stat.f_mntonname, 946 vp)); 947 948 fn = VTOF(vp); 949 ntp = VTONT(vp); 950 ntfhp = (struct ntfid *)fhp; 951 ntfhp->ntfid_len = sizeof(struct ntfid); 952 ntfhp->ntfid_ino = ntp->i_number; 953 ntfhp->ntfid_attr = fn->f_attrtype; 954 #ifdef notyet 955 ntfhp->ntfid_gen = ntp->i_gen; 956 #endif 957 return (0); 958 } 959 960 int 961 ntfs_vgetex( 962 struct mount *mp, 963 ino_t ino, 964 u_int32_t attrtype, 965 char *attrname, 966 u_long lkflags, 967 u_long flags, 968 struct proc *p, 969 struct vnode **vpp) 970 { 971 int error; 972 struct ntfsmount *ntmp; 973 struct ntnode *ip; 974 struct fnode *fp; 975 struct vnode *vp; 976 enum vtype f_type; 977 978 dprintf(("ntfs_vgetex: ino: %d, attr: 0x%x:%s, lkf: 0x%lx, f: 0x%lx\n", 979 ino, attrtype, attrname?attrname:"", (u_long)lkflags, 980 (u_long)flags )); 981 982 ntmp = VFSTONTFS(mp); 983 *vpp = NULL; 984 985 /* Get ntnode */ 986 #ifndef __OpenBSD__ 987 error = ntfs_ntlookup(ntmp, ino, &ip); 988 #else 989 error = ntfs_ntlookup(ntmp, ino, &ip, p); 990 #endif 991 if (error) { 992 printf("ntfs_vget: ntfs_ntget failed\n"); 993 return (error); 994 } 995 996 /* It may be not initialized fully, so force load it */ 997 if (!(flags & VG_DONTLOADIN) && !(ip->i_flag & IN_LOADED)) { 998 error = ntfs_loadntnode(ntmp, ip); 999 if(error) { 1000 printf("ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO: %d\n", 1001 ip->i_number); 1002 #ifndef __OpenBSD__ 1003 ntfs_ntput(ip); 1004 #else 1005 ntfs_ntput(ip, p); 1006 #endif 1007 return (error); 1008 } 1009 } 1010 1011 error = ntfs_fget(ntmp, ip, attrtype, attrname, &fp); 1012 if (error) { 1013 printf("ntfs_vget: ntfs_fget failed\n"); 1014 #ifndef __OpenBSD__ 1015 ntfs_ntput(ip); 1016 #else 1017 ntfs_ntput(ip, p); 1018 #endif 1019 return (error); 1020 } 1021 1022 if (!(flags & VG_DONTVALIDFN) && !(fp->f_flag & FN_VALID)) { 1023 if ((ip->i_frflag & NTFS_FRFLAG_DIR) && 1024 (fp->f_attrtype == NTFS_A_DATA && fp->f_attrname == NULL)) { 1025 f_type = VDIR; 1026 } else if (flags & VG_EXT) { 1027 f_type = VNON; 1028 fp->f_size = fp->f_allocated = 0; 1029 } else { 1030 f_type = VREG; 1031 1032 error = ntfs_filesize(ntmp, fp, 1033 &fp->f_size, &fp->f_allocated); 1034 if (error) { 1035 #ifndef __OpenBSD__ 1036 ntfs_ntput(ip); 1037 #else 1038 ntfs_ntput(ip, p); 1039 #endif 1040 return (error); 1041 } 1042 } 1043 1044 fp->f_flag |= FN_VALID; 1045 } 1046 1047 /* 1048 * We may be calling vget() now. To avoid potential deadlock, we need 1049 * to release ntnode lock, since due to locking order vnode 1050 * lock has to be acquired first. 1051 * ntfs_fget() bumped ntnode usecount, so ntnode won't be recycled 1052 * prematurely. 1053 */ 1054 #ifndef __OpenBSD__ 1055 ntfs_ntput(ip); 1056 #else 1057 ntfs_ntput(ip, p); 1058 #endif 1059 1060 if (FTOV(fp)) { 1061 /* vget() returns error if the vnode has been recycled */ 1062 if (VGET(FTOV(fp), lkflags, p) == 0) { 1063 *vpp = FTOV(fp); 1064 return (0); 1065 } 1066 } 1067 1068 error = getnewvnode(VT_NTFS, ntmp->ntm_mountp, ntfs_vnodeop_p, &vp); 1069 if(error) { 1070 ntfs_frele(fp); 1071 #ifndef __OpenBSD__ 1072 ntfs_ntput(ip); 1073 #else 1074 ntfs_ntput(ip, p); 1075 #endif 1076 return (error); 1077 } 1078 dprintf(("ntfs_vget: vnode: %p for ntnode: %d\n", vp,ino)); 1079 1080 #ifdef __FreeBSD__ 1081 lockinit(&fp->f_lock, PINOD, "fnode", 0, 0); 1082 #endif 1083 fp->f_vp = vp; 1084 vp->v_data = fp; 1085 vp->v_type = f_type; 1086 1087 if (ino == NTFS_ROOTINO) 1088 vp->v_flag |= VROOT; 1089 1090 if (lkflags & LK_TYPE_MASK) { 1091 error = VN_LOCK(vp, lkflags, p); 1092 if (error) { 1093 vput(vp); 1094 return (error); 1095 } 1096 } 1097 1098 #if defined(__FreeBSD__) || defined(__NetBSD__) 1099 genfs_node_init(vp, &ntfs_genfsops); 1100 #endif 1101 VREF(ip->i_devvp); 1102 *vpp = vp; 1103 return (0); 1104 } 1105 1106 static int 1107 ntfs_vget( 1108 struct mount *mp, 1109 ino_t ino, 1110 struct vnode **vpp) 1111 { 1112 return ntfs_vgetex(mp, ino, NTFS_A_DATA, NULL, 1113 LK_EXCLUSIVE | LK_RETRY, 0, curproc, vpp); /* XXX */ 1114 } 1115 1116 #if defined(__FreeBSD__) 1117 static struct vfsops ntfs_vfsops = { 1118 ntfs_mount, 1119 ntfs_start, 1120 ntfs_unmount, 1121 ntfs_root, 1122 ntfs_quotactl, 1123 ntfs_statfs, 1124 ntfs_sync, 1125 ntfs_vget, 1126 ntfs_fhtovp, 1127 ntfs_vptofh, 1128 ntfs_init, 1129 NULL 1130 }; 1131 VFS_SET(ntfs_vfsops, ntfs, 0); 1132 #elif defined(__NetBSD__) 1133 extern const struct vnodeopv_desc ntfs_vnodeop_opv_desc; 1134 1135 const struct vnodeopv_desc * const ntfs_vnodeopv_descs[] = { 1136 &ntfs_vnodeop_opv_desc, 1137 NULL, 1138 }; 1139 1140 struct vfsops ntfs_vfsops = { 1141 MOUNT_NTFS, 1142 ntfs_mount, 1143 ntfs_start, 1144 ntfs_unmount, 1145 ntfs_root, 1146 ntfs_quotactl, 1147 ntfs_statfs, 1148 ntfs_sync, 1149 ntfs_vget, 1150 ntfs_fhtovp, 1151 ntfs_vptofh, 1152 ntfs_init, 1153 ntfs_reinit, 1154 ntfs_done, 1155 ntfs_sysctl, 1156 ntfs_mountroot, 1157 ntfs_checkexp, 1158 ntfs_vnodeopv_descs, 1159 }; 1160 #elif defined(__OpenBSD__) 1161 extern const struct vnodeopv_desc ntfs_vnodeop_opv_desc; 1162 1163 const struct vnodeopv_desc * const ntfs_vnodeopv_descs[] = { 1164 &ntfs_vnodeop_opv_desc, 1165 NULL, 1166 }; 1167 1168 struct vfsops ntfs_vfsops = { 1169 ntfs_mount, 1170 ntfs_start, 1171 ntfs_unmount, 1172 ntfs_root, 1173 ntfs_quotactl, 1174 ntfs_statfs, 1175 ntfs_sync, 1176 ntfs_vget, 1177 ntfs_fhtovp, 1178 ntfs_vptofh, 1179 ntfs_init, 1180 ntfs_sysctl, 1181 ntfs_checkexp, 1182 }; 1183 1184 #endif 1185