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sys/fs/ntfs/ntfs_vfsops.c
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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: releng/6.0/sys/fs/ntfs/ntfs_vfsops.c 150746 2005-09-30 06:26:42Z delphij $ 29 */ 30 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/namei.h> 35 #include <sys/conf.h> 36 #include <sys/proc.h> 37 #include <sys/kernel.h> 38 #include <sys/vnode.h> 39 #include <sys/mount.h> 40 #include <sys/bio.h> 41 #include <sys/buf.h> 42 #include <sys/fcntl.h> 43 #include <sys/malloc.h> 44 #include <sys/systm.h> 45 46 #include <geom/geom.h> 47 #include <geom/geom_vfs.h> 48 49 #include <vm/vm.h> 50 #include <vm/vm_param.h> 51 #include <vm/vm_page.h> 52 #include <vm/vm_object.h> 53 #include <vm/vm_extern.h> 54 55 /*#define NTFS_DEBUG 1*/ 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 static 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 struct sockaddr; 69 70 static int ntfs_mountfs(register struct vnode *, struct mount *, 71 struct thread *); 72 static int ntfs_calccfree(struct ntfsmount *ntmp, cn_t *cfreep); 73 74 static vfs_init_t ntfs_init; 75 static vfs_uninit_t ntfs_uninit; 76 static vfs_vget_t ntfs_vget; 77 static vfs_fhtovp_t ntfs_fhtovp; 78 static vfs_cmount_t ntfs_cmount; 79 static vfs_mount_t ntfs_mount; 80 static vfs_root_t ntfs_root; 81 static vfs_statfs_t ntfs_statfs; 82 static vfs_unmount_t ntfs_unmount; 83 static vfs_vptofh_t ntfs_vptofh; 84 85 static b_strategy_t ntfs_bufstrategy; 86 87 /* 88 * Buffer operations for NTFS vnodes. 89 * We punt on VOP_BMAP, so we need to do 90 * strategy on the file's vnode rather 91 * than the underlying device's 92 */ 93 static struct buf_ops ntfs_vnbufops = { 94 .bop_name = "NTFS", 95 .bop_strategy = ntfs_bufstrategy, 96 }; 97 98 static int 99 ntfs_init ( 100 struct vfsconf *vcp ) 101 { 102 ntfs_nthashinit(); 103 ntfs_toupper_init(); 104 return 0; 105 } 106 107 static int 108 ntfs_uninit ( 109 struct vfsconf *vcp ) 110 { 111 ntfs_toupper_destroy(); 112 ntfs_nthashdestroy(); 113 return 0; 114 } 115 116 static int 117 ntfs_cmount ( 118 struct mntarg *ma, 119 void *data, 120 int flags, 121 struct thread *td ) 122 { 123 int error; 124 struct ntfs_args args; 125 126 error = copyin(data, (caddr_t)&args, sizeof args); 127 if (error) 128 return (error); 129 ma = mount_argsu(ma, "from", args.fspec, MAXPATHLEN); 130 ma = mount_arg(ma, "export", &args.export, sizeof args.export); 131 ma = mount_argf(ma, "uid", "%d", args.uid); 132 ma = mount_argf(ma, "gid", "%d", args.gid); 133 ma = mount_argf(ma, "mode", "%d", args.mode); 134 ma = mount_argb(ma, args.flag & NTFS_MFLAG_CASEINS, "nocaseins"); 135 ma = mount_argb(ma, args.flag & NTFS_MFLAG_ALLNAMES, "noallnames"); 136 if (args.flag & NTFS_MFLAG_KICONV) { 137 ma = mount_argsu(ma, "cs_ntfs", args.cs_ntfs, 64); 138 ma = mount_argsu(ma, "cs_local", args.cs_local, 64); 139 } 140 141 error = kernel_mount(ma, flags); 142 143 return (error); 144 } 145 146 static const char *ntfs_opts[] = { 147 "from", "export", "uid", "gid", "mode", "caseins", "allnames", 148 "kiconv", "cs_ntfs", "cs_local", NULL 149 }; 150 151 static int 152 ntfs_mount ( 153 struct mount *mp, 154 struct thread *td ) 155 { 156 int err = 0, error; 157 struct vnode *devvp; 158 struct nameidata ndp; 159 char *from; 160 struct export_args export; 161 162 if (vfs_filteropt(mp->mnt_optnew, ntfs_opts)) 163 return (EINVAL); 164 165 from = vfs_getopts(mp->mnt_optnew, "from", &error); 166 if (error) 167 return (error); 168 169 /* 170 * If updating, check whether changing from read-only to 171 * read/write. 172 */ 173 if (mp->mnt_flag & MNT_UPDATE) { 174 error = vfs_copyopt(mp->mnt_optnew, "export", 175 &export, sizeof export); 176 if ((error == 0) && export.ex_flags != 0) { 177 /* 178 * Process export requests. Jumping to "success" 179 * will return the vfs_export() error code. 180 */ 181 err = vfs_export(mp, &export); 182 goto success; 183 } 184 185 printf("ntfs_mount(): MNT_UPDATE not supported\n"); 186 err = EINVAL; 187 goto error_1; 188 } 189 190 /* 191 * Not an update, or updating the name: look up the name 192 * and verify that it refers to a sensible block device. 193 */ 194 NDINIT(&ndp, LOOKUP, FOLLOW | LOCKLEAF, UIO_SYSSPACE, from, td); 195 err = namei(&ndp); 196 if (err) { 197 /* can't get devvp!*/ 198 goto error_1; 199 } 200 NDFREE(&ndp, NDF_ONLY_PNBUF); 201 devvp = ndp.ni_vp; 202 203 if (!vn_isdisk(devvp, &err)) { 204 vput(devvp); 205 return (err); 206 } 207 208 if (mp->mnt_flag & MNT_UPDATE) { 209 #if 0 210 /* 211 ******************** 212 * UPDATE 213 ******************** 214 */ 215 216 if (devvp != ntmp->um_devvp) 217 err = EINVAL; /* needs translation */ 218 vput(devvp); 219 if (err) 220 return (err); 221 #endif 222 } else { 223 /* 224 ******************** 225 * NEW MOUNT 226 ******************** 227 */ 228 229 /* 230 * Since this is a new mount, we want the names for 231 * the device and the mount point copied in. If an 232 * error occurs, the mountpoint is discarded by the 233 * upper level code. Note that vfs_mount() handles 234 * copying the mountpoint f_mntonname for us, so we 235 * don't have to do it here unless we want to set it 236 * to something other than "path" for some rason. 237 */ 238 /* Save "mounted from" info for mount point (NULL pad)*/ 239 vfs_mountedfrom(mp, from); 240 241 err = ntfs_mountfs(devvp, mp, td); 242 } 243 if (err) { 244 vrele(devvp); 245 return (err); 246 } 247 248 goto success; 249 250 error_1: /* no state to back out*/ 251 /* XXX: missing NDFREE(&ndp, ...) */ 252 253 success: 254 return(err); 255 } 256 257 /* 258 * Common code for mount and mountroot 259 */ 260 int 261 ntfs_mountfs(devvp, mp, td) 262 register struct vnode *devvp; 263 struct mount *mp; 264 struct thread *td; 265 { 266 struct buf *bp; 267 struct ntfsmount *ntmp; 268 struct cdev *dev = devvp->v_rdev; 269 int error, ronly, i, v; 270 struct vnode *vp; 271 struct g_consumer *cp; 272 char *cs_ntfs, *cs_local; 273 274 ronly = (mp->mnt_flag & MNT_RDONLY) != 0; 275 DROP_GIANT(); 276 g_topology_lock(); 277 error = g_vfs_open(devvp, &cp, "ntfs", ronly ? 0 : 1); 278 g_topology_unlock(); 279 PICKUP_GIANT(); 280 VOP_UNLOCK(devvp, 0, td); 281 if (error) 282 return (error); 283 284 bp = NULL; 285 286 error = bread(devvp, BBLOCK, BBSIZE, NOCRED, &bp); 287 if (error) 288 goto out; 289 ntmp = malloc( sizeof *ntmp, M_NTFSMNT, M_WAITOK | M_ZERO); 290 bcopy( bp->b_data, &ntmp->ntm_bootfile, sizeof(struct bootfile) ); 291 /* 292 * We must not cache the boot block if its size is not exactly 293 * one cluster in order to avoid confusing the buffer cache when 294 * the boot file is read later by ntfs_readntvattr_plain(), which 295 * reads a cluster at a time. 296 */ 297 if (ntfs_cntob(1) != BBSIZE) 298 bp->b_flags |= B_NOCACHE; 299 brelse( bp ); 300 bp = NULL; 301 302 if (strncmp(ntmp->ntm_bootfile.bf_sysid, NTFS_BBID, NTFS_BBIDLEN)) { 303 error = EINVAL; 304 dprintf(("ntfs_mountfs: invalid boot block\n")); 305 goto out; 306 } 307 308 { 309 int8_t cpr = ntmp->ntm_mftrecsz; 310 if( cpr > 0 ) 311 ntmp->ntm_bpmftrec = ntmp->ntm_spc * cpr; 312 else 313 ntmp->ntm_bpmftrec = (1 << (-cpr)) / ntmp->ntm_bps; 314 } 315 dprintf(("ntfs_mountfs(): bps: %d, spc: %d, media: %x, mftrecsz: %d (%d sects)\n", 316 ntmp->ntm_bps,ntmp->ntm_spc,ntmp->ntm_bootfile.bf_media, 317 ntmp->ntm_mftrecsz,ntmp->ntm_bpmftrec)); 318 dprintf(("ntfs_mountfs(): mftcn: 0x%x|0x%x\n", 319 (u_int32_t)ntmp->ntm_mftcn,(u_int32_t)ntmp->ntm_mftmirrcn)); 320 321 ntmp->ntm_mountp = mp; 322 ntmp->ntm_devvp = devvp; 323 if (1 == vfs_scanopt(mp->mnt_optnew, "uid", "%d", &v)) 324 ntmp->ntm_uid = v; 325 if (1 == vfs_scanopt(mp->mnt_optnew, "gid", "%d", &v)) 326 ntmp->ntm_gid = v; 327 if (1 == vfs_scanopt(mp->mnt_optnew, "mode", "%d", &v)) 328 ntmp->ntm_mode = v; 329 vfs_flagopt(mp->mnt_optnew, 330 "caseins", &ntmp->ntm_flag, NTFS_MFLAG_CASEINS); 331 vfs_flagopt(mp->mnt_optnew, 332 "allnames", &ntmp->ntm_flag, NTFS_MFLAG_ALLNAMES); 333 ntmp->ntm_cp = cp; 334 ntmp->ntm_bo = &devvp->v_bufobj; 335 336 cs_local = vfs_getopts(mp->mnt_optnew, "cs_local", &error); 337 if (error) 338 goto out; 339 cs_ntfs = vfs_getopts(mp->mnt_optnew, "cs_ntfs", &error); 340 if (error) 341 goto out; 342 /* Copy in the 8-bit to Unicode conversion table */ 343 /* Initialize Unicode to 8-bit table from 8toU table */ 344 ntfs_82u_init(ntmp, cs_local, cs_ntfs); 345 if (cs_local != NULL && cs_ntfs != NULL) 346 ntfs_u28_init(ntmp, NULL, cs_local, cs_ntfs); 347 else 348 ntfs_u28_init(ntmp, ntmp->ntm_82u, cs_local, cs_ntfs); 349 350 mp->mnt_data = (qaddr_t)ntmp; 351 352 dprintf(("ntfs_mountfs(): case-%s,%s uid: %d, gid: %d, mode: %o\n", 353 (ntmp->ntm_flag & NTFS_MFLAG_CASEINS)?"insens.":"sens.", 354 (ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES)?" allnames,":"", 355 ntmp->ntm_uid, ntmp->ntm_gid, ntmp->ntm_mode)); 356 357 /* 358 * We read in some system nodes to do not allow 359 * reclaim them and to have everytime access to them. 360 */ 361 { 362 int pi[3] = { NTFS_MFTINO, NTFS_ROOTINO, NTFS_BITMAPINO }; 363 for (i=0; i<3; i++) { 364 error = VFS_VGET(mp, pi[i], LK_EXCLUSIVE, 365 &(ntmp->ntm_sysvn[pi[i]])); 366 if(error) 367 goto out1; 368 ntmp->ntm_sysvn[pi[i]]->v_vflag |= VV_SYSTEM; 369 VREF(ntmp->ntm_sysvn[pi[i]]); 370 vput(ntmp->ntm_sysvn[pi[i]]); 371 } 372 } 373 374 /* read the Unicode lowercase --> uppercase translation table, 375 * if necessary */ 376 if ((error = ntfs_toupper_use(mp, ntmp))) 377 goto out1; 378 379 /* 380 * Scan $BitMap and count free clusters 381 */ 382 error = ntfs_calccfree(ntmp, &ntmp->ntm_cfree); 383 if(error) 384 goto out1; 385 386 /* 387 * Read and translate to internal format attribute 388 * definition file. 389 */ 390 { 391 int num,j; 392 struct attrdef ad; 393 394 /* Open $AttrDef */ 395 error = VFS_VGET(mp, NTFS_ATTRDEFINO, LK_EXCLUSIVE, &vp ); 396 if(error) 397 goto out1; 398 399 /* Count valid entries */ 400 for(num=0;;num++) { 401 error = ntfs_readattr(ntmp, VTONT(vp), 402 NTFS_A_DATA, NULL, 403 num * sizeof(ad), sizeof(ad), 404 &ad, NULL); 405 if (error) 406 goto out1; 407 if (ad.ad_name[0] == 0) 408 break; 409 } 410 411 /* Alloc memory for attribute definitions */ 412 MALLOC(ntmp->ntm_ad, struct ntvattrdef *, 413 num * sizeof(struct ntvattrdef), 414 M_NTFSMNT, M_WAITOK); 415 416 ntmp->ntm_adnum = num; 417 418 /* Read them and translate */ 419 for(i=0;i<num;i++){ 420 error = ntfs_readattr(ntmp, VTONT(vp), 421 NTFS_A_DATA, NULL, 422 i * sizeof(ad), sizeof(ad), 423 &ad, NULL); 424 if (error) 425 goto out1; 426 j = 0; 427 do { 428 ntmp->ntm_ad[i].ad_name[j] = ad.ad_name[j]; 429 } while(ad.ad_name[j++]); 430 ntmp->ntm_ad[i].ad_namelen = j - 1; 431 ntmp->ntm_ad[i].ad_type = ad.ad_type; 432 } 433 434 vput(vp); 435 } 436 437 mp->mnt_stat.f_fsid.val[0] = dev2udev(dev); 438 mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum; 439 mp->mnt_maxsymlinklen = 0; 440 mp->mnt_flag |= MNT_LOCAL; 441 return (0); 442 443 out1: 444 for(i=0;i<NTFS_SYSNODESNUM;i++) 445 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 446 447 if (vflush(mp, 0, 0, td)) 448 dprintf(("ntfs_mountfs: vflush failed\n")); 449 450 out: 451 if (bp) 452 brelse(bp); 453 454 DROP_GIANT(); 455 g_topology_lock(); 456 g_vfs_close(cp, td); 457 g_topology_unlock(); 458 PICKUP_GIANT(); 459 460 return (error); 461 } 462 463 static int 464 ntfs_unmount( 465 struct mount *mp, 466 int mntflags, 467 struct thread *td) 468 { 469 struct ntfsmount *ntmp; 470 int error, flags, i; 471 472 dprintf(("ntfs_unmount: unmounting...\n")); 473 ntmp = VFSTONTFS(mp); 474 475 flags = 0; 476 if(mntflags & MNT_FORCE) 477 flags |= FORCECLOSE; 478 479 dprintf(("ntfs_unmount: vflushing...\n")); 480 error = vflush(mp, 0, flags | SKIPSYSTEM, td); 481 if (error) { 482 printf("ntfs_unmount: vflush failed: %d\n",error); 483 return (error); 484 } 485 486 /* Check if only system vnodes are rest */ 487 for(i=0;i<NTFS_SYSNODESNUM;i++) 488 if((ntmp->ntm_sysvn[i]) && 489 (vrefcnt(ntmp->ntm_sysvn[i]) > 1)) return (EBUSY); 490 491 /* Dereference all system vnodes */ 492 for(i=0;i<NTFS_SYSNODESNUM;i++) 493 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 494 495 /* vflush system vnodes */ 496 error = vflush(mp, 0, flags, td); 497 if (error) 498 printf("ntfs_unmount: vflush failed(sysnodes): %d\n",error); 499 500 vinvalbuf(ntmp->ntm_devvp, V_SAVE, td, 0, 0); 501 502 DROP_GIANT(); 503 g_topology_lock(); 504 g_vfs_close(ntmp->ntm_cp, td); 505 g_topology_unlock(); 506 PICKUP_GIANT(); 507 508 vrele(ntmp->ntm_devvp); 509 510 /* free the toupper table, if this has been last mounted ntfs volume */ 511 ntfs_toupper_unuse(); 512 513 dprintf(("ntfs_umount: freeing memory...\n")); 514 ntfs_u28_uninit(ntmp); 515 ntfs_82u_uninit(ntmp); 516 mp->mnt_data = (qaddr_t)0; 517 mp->mnt_flag &= ~MNT_LOCAL; 518 FREE(ntmp->ntm_ad, M_NTFSMNT); 519 FREE(ntmp, M_NTFSMNT); 520 return (error); 521 } 522 523 static int 524 ntfs_root( 525 struct mount *mp, 526 int flags, 527 struct vnode **vpp, 528 struct thread *td ) 529 { 530 struct vnode *nvp; 531 int error = 0; 532 533 dprintf(("ntfs_root(): sysvn: %p\n", 534 VFSTONTFS(mp)->ntm_sysvn[NTFS_ROOTINO])); 535 error = VFS_VGET(mp, (ino_t)NTFS_ROOTINO, LK_EXCLUSIVE, &nvp); 536 if(error) { 537 printf("ntfs_root: VFS_VGET failed: %d\n",error); 538 return (error); 539 } 540 541 *vpp = nvp; 542 return (0); 543 } 544 545 static int 546 ntfs_calccfree( 547 struct ntfsmount *ntmp, 548 cn_t *cfreep) 549 { 550 struct vnode *vp; 551 u_int8_t *tmp; 552 int j, error; 553 long cfree = 0; 554 size_t bmsize, i; 555 556 vp = ntmp->ntm_sysvn[NTFS_BITMAPINO]; 557 558 bmsize = VTOF(vp)->f_size; 559 560 MALLOC(tmp, u_int8_t *, bmsize, M_TEMP, M_WAITOK); 561 562 error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL, 563 0, bmsize, tmp, NULL); 564 if (error) 565 goto out; 566 567 for(i=0;i<bmsize;i++) 568 for(j=0;j<8;j++) 569 if(~tmp[i] & (1 << j)) cfree++; 570 *cfreep = cfree; 571 572 out: 573 FREE(tmp, M_TEMP); 574 return(error); 575 } 576 577 static int 578 ntfs_statfs( 579 struct mount *mp, 580 struct statfs *sbp, 581 struct thread *td) 582 { 583 struct ntfsmount *ntmp = VFSTONTFS(mp); 584 u_int64_t mftsize,mftallocated; 585 586 dprintf(("ntfs_statfs():\n")); 587 588 mftsize = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_size; 589 mftallocated = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_allocated; 590 591 sbp->f_type = mp->mnt_vfc->vfc_typenum; 592 sbp->f_bsize = ntmp->ntm_bps; 593 sbp->f_iosize = ntmp->ntm_bps * ntmp->ntm_spc; 594 sbp->f_blocks = ntmp->ntm_bootfile.bf_spv; 595 sbp->f_bfree = sbp->f_bavail = ntfs_cntobn(ntmp->ntm_cfree); 596 sbp->f_ffree = sbp->f_bfree / ntmp->ntm_bpmftrec; 597 sbp->f_files = mftallocated / ntfs_bntob(ntmp->ntm_bpmftrec) + 598 sbp->f_ffree; 599 sbp->f_flags = mp->mnt_flag; 600 601 return (0); 602 } 603 604 /*ARGSUSED*/ 605 static int 606 ntfs_fhtovp( 607 struct mount *mp, 608 struct fid *fhp, 609 struct vnode **vpp) 610 { 611 struct vnode *nvp; 612 struct ntfid *ntfhp = (struct ntfid *)fhp; 613 int error; 614 615 ddprintf(("ntfs_fhtovp(): %d\n", ntfhp->ntfid_ino)); 616 617 if ((error = VFS_VGET(mp, ntfhp->ntfid_ino, LK_EXCLUSIVE, &nvp)) != 0) { 618 *vpp = NULLVP; 619 return (error); 620 } 621 /* XXX as unlink/rmdir/mkdir/creat are not currently possible 622 * with NTFS, we don't need to check anything else for now */ 623 *vpp = nvp; 624 vnode_create_vobject(nvp, VTOF(nvp)->f_size, curthread); 625 return (0); 626 } 627 628 static int 629 ntfs_vptofh( 630 struct vnode *vp, 631 struct fid *fhp) 632 { 633 register struct ntnode *ntp; 634 register struct ntfid *ntfhp; 635 636 ddprintf(("ntfs_fhtovp(): %p\n", vp)); 637 638 ntp = VTONT(vp); 639 ntfhp = (struct ntfid *)fhp; 640 ntfhp->ntfid_len = sizeof(struct ntfid); 641 ntfhp->ntfid_ino = ntp->i_number; 642 /* ntfhp->ntfid_gen = ntp->i_gen; */ 643 return (0); 644 } 645 646 int 647 ntfs_vgetex( 648 struct mount *mp, 649 ino_t ino, 650 u_int32_t attrtype, 651 char *attrname, 652 u_long lkflags, 653 u_long flags, 654 struct thread *td, 655 struct vnode **vpp) 656 { 657 int error; 658 register struct ntfsmount *ntmp; 659 struct ntnode *ip; 660 struct fnode *fp; 661 struct vnode *vp; 662 enum vtype f_type; 663 664 dprintf(("ntfs_vgetex: ino: %d, attr: 0x%x:%s, lkf: 0x%lx, f: 0x%lx\n", 665 ino, attrtype, attrname?attrname:"", (u_long)lkflags, 666 (u_long)flags)); 667 668 ntmp = VFSTONTFS(mp); 669 *vpp = NULL; 670 671 /* Get ntnode */ 672 error = ntfs_ntlookup(ntmp, ino, &ip); 673 if (error) { 674 printf("ntfs_vget: ntfs_ntget failed\n"); 675 return (error); 676 } 677 678 /* It may be not initialized fully, so force load it */ 679 if (!(flags & VG_DONTLOADIN) && !(ip->i_flag & IN_LOADED)) { 680 error = ntfs_loadntnode(ntmp, ip); 681 if(error) { 682 printf("ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO: %d\n", 683 ip->i_number); 684 ntfs_ntput(ip); 685 return (error); 686 } 687 } 688 689 error = ntfs_fget(ntmp, ip, attrtype, attrname, &fp); 690 if (error) { 691 printf("ntfs_vget: ntfs_fget failed\n"); 692 ntfs_ntput(ip); 693 return (error); 694 } 695 696 f_type = VNON; 697 if (!(flags & VG_DONTVALIDFN) && !(fp->f_flag & FN_VALID)) { 698 if ((ip->i_frflag & NTFS_FRFLAG_DIR) && 699 (fp->f_attrtype == NTFS_A_DATA && fp->f_attrname == NULL)) { 700 f_type = VDIR; 701 } else if (flags & VG_EXT) { 702 f_type = VNON; 703 fp->f_size = fp->f_allocated = 0; 704 } else { 705 f_type = VREG; 706 707 error = ntfs_filesize(ntmp, fp, 708 &fp->f_size, &fp->f_allocated); 709 if (error) { 710 ntfs_ntput(ip); 711 return (error); 712 } 713 } 714 715 fp->f_flag |= FN_VALID; 716 } 717 718 if (FTOV(fp)) { 719 vget(FTOV(fp), lkflags, td); 720 *vpp = FTOV(fp); 721 ntfs_ntput(ip); 722 return (0); 723 } 724 725 error = getnewvnode("ntfs", ntmp->ntm_mountp, &ntfs_vnodeops, &vp); 726 if(error) { 727 ntfs_frele(fp); 728 ntfs_ntput(ip); 729 return (error); 730 } 731 dprintf(("ntfs_vget: vnode: %p for ntnode: %d\n", vp,ino)); 732 733 fp->f_vp = vp; 734 vp->v_data = fp; 735 vp->v_type = f_type; 736 737 vp->v_bufobj.bo_ops = &ntfs_vnbufops; 738 vp->v_bufobj.bo_private = vp; 739 740 if (ino == NTFS_ROOTINO) 741 vp->v_vflag |= VV_ROOT; 742 743 ntfs_ntput(ip); 744 745 if (lkflags & LK_TYPE_MASK) { 746 error = vn_lock(vp, lkflags, td); 747 if (error) { 748 vput(vp); 749 return (error); 750 } 751 } 752 753 *vpp = vp; 754 return (0); 755 756 } 757 758 static int 759 ntfs_vget( 760 struct mount *mp, 761 ino_t ino, 762 int lkflags, 763 struct vnode **vpp) 764 { 765 return ntfs_vgetex(mp, ino, NTFS_A_DATA, NULL, lkflags, 0, 766 curthread, vpp); 767 } 768 769 static void 770 ntfs_bufstrategy(struct bufobj *bo, struct buf *bp) 771 { 772 struct vnode *vp; 773 int rc; 774 775 vp = bo->bo_private; 776 KASSERT(bo == &vp->v_bufobj, ("BO/VP mismatch: vp %p bo %p != %p", 777 vp, &vp->v_bufobj, bo)); 778 rc = VOP_STRATEGY(vp, bp); 779 KASSERT(rc == 0, ("NTFS VOP_STRATEGY failed: bp=%p, " 780 "vp=%p, rc=%d", bp, vp, rc)); 781 } 782 783 static struct vfsops ntfs_vfsops = { 784 .vfs_fhtovp = ntfs_fhtovp, 785 .vfs_init = ntfs_init, 786 .vfs_cmount = ntfs_cmount, 787 .vfs_mount = ntfs_mount, 788 .vfs_root = ntfs_root, 789 .vfs_statfs = ntfs_statfs, 790 .vfs_uninit = ntfs_uninit, 791 .vfs_unmount = ntfs_unmount, 792 .vfs_vget = ntfs_vget, 793 .vfs_vptofh = ntfs_vptofh, 794 }; 795 VFS_SET(ntfs_vfsops, ntfs, 0); 796 MODULE_VERSION(ntfs, 1);
Cache object: 1c83dfe49048fd941d16c87cc09e11a7
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