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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/6.2/sys/fs/ntfs/ntfs_vfsops.c 163172 2006-10-09 19:47:17Z tegge $ 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; 160 161 if (vfs_filteropt(mp->mnt_optnew, ntfs_opts)) 162 return (EINVAL); 163 164 from = vfs_getopts(mp->mnt_optnew, "from", &error); 165 if (error) 166 return (error); 167 168 /* 169 * If updating, check whether changing from read-only to 170 * read/write. 171 */ 172 if (mp->mnt_flag & MNT_UPDATE) { 173 if (vfs_flagopt(mp->mnt_optnew, "export", NULL, 0)) { 174 /* Process export requests in vfs_mount.c */ 175 goto success; 176 } else { 177 printf("ntfs_mount(): MNT_UPDATE not supported\n"); 178 err = EINVAL; 179 goto error_1; 180 } 181 } 182 183 /* 184 * Not an update, or updating the name: look up the name 185 * and verify that it refers to a sensible block device. 186 */ 187 NDINIT(&ndp, LOOKUP, FOLLOW | LOCKLEAF, UIO_SYSSPACE, from, td); 188 err = namei(&ndp); 189 if (err) { 190 /* can't get devvp!*/ 191 goto error_1; 192 } 193 NDFREE(&ndp, NDF_ONLY_PNBUF); 194 devvp = ndp.ni_vp; 195 196 if (!vn_isdisk(devvp, &err)) { 197 vput(devvp); 198 return (err); 199 } 200 201 if (mp->mnt_flag & MNT_UPDATE) { 202 #if 0 203 /* 204 ******************** 205 * UPDATE 206 ******************** 207 */ 208 209 if (devvp != ntmp->um_devvp) 210 err = EINVAL; /* needs translation */ 211 vput(devvp); 212 if (err) 213 return (err); 214 #endif 215 } else { 216 /* 217 ******************** 218 * NEW MOUNT 219 ******************** 220 */ 221 222 /* 223 * Since this is a new mount, we want the names for 224 * the device and the mount point copied in. If an 225 * error occurs, the mountpoint is discarded by the 226 * upper level code. Note that vfs_mount() handles 227 * copying the mountpoint f_mntonname for us, so we 228 * don't have to do it here unless we want to set it 229 * to something other than "path" for some rason. 230 */ 231 /* Save "mounted from" info for mount point (NULL pad)*/ 232 vfs_mountedfrom(mp, from); 233 234 err = ntfs_mountfs(devvp, mp, td); 235 } 236 if (err) { 237 vrele(devvp); 238 return (err); 239 } 240 241 goto success; 242 243 error_1: /* no state to back out*/ 244 /* XXX: missing NDFREE(&ndp, ...) */ 245 246 success: 247 return(err); 248 } 249 250 /* 251 * Common code for mount and mountroot 252 */ 253 int 254 ntfs_mountfs(devvp, mp, td) 255 register struct vnode *devvp; 256 struct mount *mp; 257 struct thread *td; 258 { 259 struct buf *bp; 260 struct ntfsmount *ntmp; 261 struct cdev *dev = devvp->v_rdev; 262 int error, ronly, i, v; 263 struct vnode *vp; 264 struct g_consumer *cp; 265 char *cs_ntfs, *cs_local; 266 267 ronly = (mp->mnt_flag & MNT_RDONLY) != 0; 268 DROP_GIANT(); 269 g_topology_lock(); 270 error = g_vfs_open(devvp, &cp, "ntfs", ronly ? 0 : 1); 271 g_topology_unlock(); 272 PICKUP_GIANT(); 273 VOP_UNLOCK(devvp, 0, td); 274 if (error) 275 return (error); 276 277 bp = NULL; 278 279 error = bread(devvp, BBLOCK, BBSIZE, NOCRED, &bp); 280 if (error) 281 goto out; 282 ntmp = malloc( sizeof *ntmp, M_NTFSMNT, M_WAITOK | M_ZERO); 283 bcopy( bp->b_data, &ntmp->ntm_bootfile, sizeof(struct bootfile) ); 284 /* 285 * We must not cache the boot block if its size is not exactly 286 * one cluster in order to avoid confusing the buffer cache when 287 * the boot file is read later by ntfs_readntvattr_plain(), which 288 * reads a cluster at a time. 289 */ 290 if (ntfs_cntob(1) != BBSIZE) 291 bp->b_flags |= B_NOCACHE; 292 brelse( bp ); 293 bp = NULL; 294 295 if (strncmp(ntmp->ntm_bootfile.bf_sysid, NTFS_BBID, NTFS_BBIDLEN)) { 296 error = EINVAL; 297 dprintf(("ntfs_mountfs: invalid boot block\n")); 298 goto out; 299 } 300 301 { 302 int8_t cpr = ntmp->ntm_mftrecsz; 303 if( cpr > 0 ) 304 ntmp->ntm_bpmftrec = ntmp->ntm_spc * cpr; 305 else 306 ntmp->ntm_bpmftrec = (1 << (-cpr)) / ntmp->ntm_bps; 307 } 308 dprintf(("ntfs_mountfs(): bps: %d, spc: %d, media: %x, mftrecsz: %d (%d sects)\n", 309 ntmp->ntm_bps,ntmp->ntm_spc,ntmp->ntm_bootfile.bf_media, 310 ntmp->ntm_mftrecsz,ntmp->ntm_bpmftrec)); 311 dprintf(("ntfs_mountfs(): mftcn: 0x%x|0x%x\n", 312 (u_int32_t)ntmp->ntm_mftcn,(u_int32_t)ntmp->ntm_mftmirrcn)); 313 314 ntmp->ntm_mountp = mp; 315 ntmp->ntm_devvp = devvp; 316 if (1 == vfs_scanopt(mp->mnt_optnew, "uid", "%d", &v)) 317 ntmp->ntm_uid = v; 318 if (1 == vfs_scanopt(mp->mnt_optnew, "gid", "%d", &v)) 319 ntmp->ntm_gid = v; 320 if (1 == vfs_scanopt(mp->mnt_optnew, "mode", "%d", &v)) 321 ntmp->ntm_mode = v; 322 vfs_flagopt(mp->mnt_optnew, 323 "caseins", &ntmp->ntm_flag, NTFS_MFLAG_CASEINS); 324 vfs_flagopt(mp->mnt_optnew, 325 "allnames", &ntmp->ntm_flag, NTFS_MFLAG_ALLNAMES); 326 ntmp->ntm_cp = cp; 327 ntmp->ntm_bo = &devvp->v_bufobj; 328 329 cs_local = vfs_getopts(mp->mnt_optnew, "cs_local", &error); 330 if (error) 331 goto out; 332 cs_ntfs = vfs_getopts(mp->mnt_optnew, "cs_ntfs", &error); 333 if (error) 334 goto out; 335 /* Copy in the 8-bit to Unicode conversion table */ 336 /* Initialize Unicode to 8-bit table from 8toU table */ 337 ntfs_82u_init(ntmp, cs_local, cs_ntfs); 338 if (cs_local != NULL && cs_ntfs != NULL) 339 ntfs_u28_init(ntmp, NULL, cs_local, cs_ntfs); 340 else 341 ntfs_u28_init(ntmp, ntmp->ntm_82u, cs_local, cs_ntfs); 342 343 mp->mnt_data = (qaddr_t)ntmp; 344 345 dprintf(("ntfs_mountfs(): case-%s,%s uid: %d, gid: %d, mode: %o\n", 346 (ntmp->ntm_flag & NTFS_MFLAG_CASEINS)?"insens.":"sens.", 347 (ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES)?" allnames,":"", 348 ntmp->ntm_uid, ntmp->ntm_gid, ntmp->ntm_mode)); 349 350 /* 351 * We read in some system nodes to do not allow 352 * reclaim them and to have everytime access to them. 353 */ 354 { 355 int pi[3] = { NTFS_MFTINO, NTFS_ROOTINO, NTFS_BITMAPINO }; 356 for (i=0; i<3; i++) { 357 error = VFS_VGET(mp, pi[i], LK_EXCLUSIVE, 358 &(ntmp->ntm_sysvn[pi[i]])); 359 if(error) 360 goto out1; 361 ntmp->ntm_sysvn[pi[i]]->v_vflag |= VV_SYSTEM; 362 VREF(ntmp->ntm_sysvn[pi[i]]); 363 vput(ntmp->ntm_sysvn[pi[i]]); 364 } 365 } 366 367 /* read the Unicode lowercase --> uppercase translation table, 368 * if necessary */ 369 if ((error = ntfs_toupper_use(mp, ntmp))) 370 goto out1; 371 372 /* 373 * Scan $BitMap and count free clusters 374 */ 375 error = ntfs_calccfree(ntmp, &ntmp->ntm_cfree); 376 if(error) 377 goto out1; 378 379 /* 380 * Read and translate to internal format attribute 381 * definition file. 382 */ 383 { 384 int num,j; 385 struct attrdef ad; 386 387 /* Open $AttrDef */ 388 error = VFS_VGET(mp, NTFS_ATTRDEFINO, LK_EXCLUSIVE, &vp ); 389 if(error) 390 goto out1; 391 392 /* Count valid entries */ 393 for(num=0;;num++) { 394 error = ntfs_readattr(ntmp, VTONT(vp), 395 NTFS_A_DATA, NULL, 396 num * sizeof(ad), sizeof(ad), 397 &ad, NULL); 398 if (error) 399 goto out1; 400 if (ad.ad_name[0] == 0) 401 break; 402 } 403 404 /* Alloc memory for attribute definitions */ 405 MALLOC(ntmp->ntm_ad, struct ntvattrdef *, 406 num * sizeof(struct ntvattrdef), 407 M_NTFSMNT, M_WAITOK); 408 409 ntmp->ntm_adnum = num; 410 411 /* Read them and translate */ 412 for(i=0;i<num;i++){ 413 error = ntfs_readattr(ntmp, VTONT(vp), 414 NTFS_A_DATA, NULL, 415 i * sizeof(ad), sizeof(ad), 416 &ad, NULL); 417 if (error) 418 goto out1; 419 j = 0; 420 do { 421 ntmp->ntm_ad[i].ad_name[j] = ad.ad_name[j]; 422 } while(ad.ad_name[j++]); 423 ntmp->ntm_ad[i].ad_namelen = j - 1; 424 ntmp->ntm_ad[i].ad_type = ad.ad_type; 425 } 426 427 vput(vp); 428 } 429 430 mp->mnt_stat.f_fsid.val[0] = dev2udev(dev); 431 mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum; 432 mp->mnt_maxsymlinklen = 0; 433 MNT_ILOCK(mp); 434 mp->mnt_flag |= MNT_LOCAL; 435 MNT_IUNLOCK(mp); 436 return (0); 437 438 out1: 439 for(i=0;i<NTFS_SYSNODESNUM;i++) 440 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 441 442 if (vflush(mp, 0, 0, td)) 443 dprintf(("ntfs_mountfs: vflush failed\n")); 444 445 out: 446 if (bp) 447 brelse(bp); 448 449 DROP_GIANT(); 450 g_topology_lock(); 451 g_vfs_close(cp, td); 452 g_topology_unlock(); 453 PICKUP_GIANT(); 454 455 return (error); 456 } 457 458 static int 459 ntfs_unmount( 460 struct mount *mp, 461 int mntflags, 462 struct thread *td) 463 { 464 struct ntfsmount *ntmp; 465 int error, flags, i; 466 467 dprintf(("ntfs_unmount: unmounting...\n")); 468 ntmp = VFSTONTFS(mp); 469 470 flags = 0; 471 if(mntflags & MNT_FORCE) 472 flags |= FORCECLOSE; 473 474 dprintf(("ntfs_unmount: vflushing...\n")); 475 error = vflush(mp, 0, flags | SKIPSYSTEM, td); 476 if (error) { 477 printf("ntfs_unmount: vflush failed: %d\n",error); 478 return (error); 479 } 480 481 /* Check if only system vnodes are rest */ 482 for(i=0;i<NTFS_SYSNODESNUM;i++) 483 if((ntmp->ntm_sysvn[i]) && 484 (vrefcnt(ntmp->ntm_sysvn[i]) > 1)) return (EBUSY); 485 486 /* Dereference all system vnodes */ 487 for(i=0;i<NTFS_SYSNODESNUM;i++) 488 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]); 489 490 /* vflush system vnodes */ 491 error = vflush(mp, 0, flags, td); 492 if (error) 493 printf("ntfs_unmount: vflush failed(sysnodes): %d\n",error); 494 495 vinvalbuf(ntmp->ntm_devvp, V_SAVE, td, 0, 0); 496 497 DROP_GIANT(); 498 g_topology_lock(); 499 g_vfs_close(ntmp->ntm_cp, td); 500 g_topology_unlock(); 501 PICKUP_GIANT(); 502 503 vrele(ntmp->ntm_devvp); 504 505 /* free the toupper table, if this has been last mounted ntfs volume */ 506 ntfs_toupper_unuse(); 507 508 dprintf(("ntfs_umount: freeing memory...\n")); 509 ntfs_u28_uninit(ntmp); 510 ntfs_82u_uninit(ntmp); 511 mp->mnt_data = (qaddr_t)0; 512 MNT_ILOCK(mp); 513 mp->mnt_flag &= ~MNT_LOCAL; 514 MNT_IUNLOCK(mp); 515 FREE(ntmp->ntm_ad, M_NTFSMNT); 516 FREE(ntmp, M_NTFSMNT); 517 return (error); 518 } 519 520 static int 521 ntfs_root( 522 struct mount *mp, 523 int flags, 524 struct vnode **vpp, 525 struct thread *td ) 526 { 527 struct vnode *nvp; 528 int error = 0; 529 530 dprintf(("ntfs_root(): sysvn: %p\n", 531 VFSTONTFS(mp)->ntm_sysvn[NTFS_ROOTINO])); 532 error = VFS_VGET(mp, (ino_t)NTFS_ROOTINO, LK_EXCLUSIVE, &nvp); 533 if(error) { 534 printf("ntfs_root: VFS_VGET failed: %d\n",error); 535 return (error); 536 } 537 538 *vpp = nvp; 539 return (0); 540 } 541 542 static int 543 ntfs_calccfree( 544 struct ntfsmount *ntmp, 545 cn_t *cfreep) 546 { 547 struct vnode *vp; 548 u_int8_t *tmp; 549 int j, error; 550 long cfree = 0; 551 size_t bmsize, i; 552 553 vp = ntmp->ntm_sysvn[NTFS_BITMAPINO]; 554 555 bmsize = VTOF(vp)->f_size; 556 557 MALLOC(tmp, u_int8_t *, bmsize, M_TEMP, M_WAITOK); 558 559 error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL, 560 0, bmsize, tmp, NULL); 561 if (error) 562 goto out; 563 564 for(i=0;i<bmsize;i++) 565 for(j=0;j<8;j++) 566 if(~tmp[i] & (1 << j)) cfree++; 567 *cfreep = cfree; 568 569 out: 570 FREE(tmp, M_TEMP); 571 return(error); 572 } 573 574 static int 575 ntfs_statfs( 576 struct mount *mp, 577 struct statfs *sbp, 578 struct thread *td) 579 { 580 struct ntfsmount *ntmp = VFSTONTFS(mp); 581 u_int64_t mftsize,mftallocated; 582 583 dprintf(("ntfs_statfs():\n")); 584 585 mftsize = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_size; 586 mftallocated = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_allocated; 587 588 sbp->f_type = mp->mnt_vfc->vfc_typenum; 589 sbp->f_bsize = ntmp->ntm_bps; 590 sbp->f_iosize = ntmp->ntm_bps * ntmp->ntm_spc; 591 sbp->f_blocks = ntmp->ntm_bootfile.bf_spv; 592 sbp->f_bfree = sbp->f_bavail = ntfs_cntobn(ntmp->ntm_cfree); 593 sbp->f_ffree = sbp->f_bfree / ntmp->ntm_bpmftrec; 594 sbp->f_files = mftallocated / ntfs_bntob(ntmp->ntm_bpmftrec) + 595 sbp->f_ffree; 596 sbp->f_flags = mp->mnt_flag; 597 598 return (0); 599 } 600 601 /*ARGSUSED*/ 602 static int 603 ntfs_fhtovp( 604 struct mount *mp, 605 struct fid *fhp, 606 struct vnode **vpp) 607 { 608 struct vnode *nvp; 609 struct ntfid *ntfhp = (struct ntfid *)fhp; 610 int error; 611 612 ddprintf(("ntfs_fhtovp(): %d\n", ntfhp->ntfid_ino)); 613 614 if ((error = VFS_VGET(mp, ntfhp->ntfid_ino, LK_EXCLUSIVE, &nvp)) != 0) { 615 *vpp = NULLVP; 616 return (error); 617 } 618 /* XXX as unlink/rmdir/mkdir/creat are not currently possible 619 * with NTFS, we don't need to check anything else for now */ 620 *vpp = nvp; 621 vnode_create_vobject_off(nvp, VTOF(nvp)->f_size, curthread); 622 return (0); 623 } 624 625 static int 626 ntfs_vptofh( 627 struct vnode *vp, 628 struct fid *fhp) 629 { 630 register struct ntnode *ntp; 631 register struct ntfid *ntfhp; 632 633 ddprintf(("ntfs_fhtovp(): %p\n", vp)); 634 635 ntp = VTONT(vp); 636 ntfhp = (struct ntfid *)fhp; 637 ntfhp->ntfid_len = sizeof(struct ntfid); 638 ntfhp->ntfid_ino = ntp->i_number; 639 /* ntfhp->ntfid_gen = ntp->i_gen; */ 640 return (0); 641 } 642 643 int 644 ntfs_vgetex( 645 struct mount *mp, 646 ino_t ino, 647 u_int32_t attrtype, 648 char *attrname, 649 u_long lkflags, 650 u_long flags, 651 struct thread *td, 652 struct vnode **vpp) 653 { 654 int error; 655 register struct ntfsmount *ntmp; 656 struct ntnode *ip; 657 struct fnode *fp; 658 struct vnode *vp; 659 enum vtype f_type; 660 661 dprintf(("ntfs_vgetex: ino: %d, attr: 0x%x:%s, lkf: 0x%lx, f: 0x%lx\n", 662 ino, attrtype, attrname?attrname:"", (u_long)lkflags, 663 (u_long)flags)); 664 665 ntmp = VFSTONTFS(mp); 666 *vpp = NULL; 667 668 /* Get ntnode */ 669 error = ntfs_ntlookup(ntmp, ino, &ip); 670 if (error) { 671 printf("ntfs_vget: ntfs_ntget failed\n"); 672 return (error); 673 } 674 675 /* It may be not initialized fully, so force load it */ 676 if (!(flags & VG_DONTLOADIN) && !(ip->i_flag & IN_LOADED)) { 677 error = ntfs_loadntnode(ntmp, ip); 678 if(error) { 679 printf("ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO: %d\n", 680 ip->i_number); 681 ntfs_ntput(ip); 682 return (error); 683 } 684 } 685 686 error = ntfs_fget(ntmp, ip, attrtype, attrname, &fp); 687 if (error) { 688 printf("ntfs_vget: ntfs_fget failed\n"); 689 ntfs_ntput(ip); 690 return (error); 691 } 692 693 f_type = VNON; 694 if (!(flags & VG_DONTVALIDFN) && !(fp->f_flag & FN_VALID)) { 695 if ((ip->i_frflag & NTFS_FRFLAG_DIR) && 696 (fp->f_attrtype == NTFS_A_DATA && fp->f_attrname == NULL)) { 697 f_type = VDIR; 698 } else if (flags & VG_EXT) { 699 f_type = VNON; 700 fp->f_size = fp->f_allocated = 0; 701 } else { 702 f_type = VREG; 703 704 error = ntfs_filesize(ntmp, fp, 705 &fp->f_size, &fp->f_allocated); 706 if (error) { 707 ntfs_ntput(ip); 708 return (error); 709 } 710 } 711 712 fp->f_flag |= FN_VALID; 713 } 714 715 if (FTOV(fp)) { 716 vget(FTOV(fp), lkflags, td); 717 *vpp = FTOV(fp); 718 ntfs_ntput(ip); 719 return (0); 720 } 721 722 error = getnewvnode("ntfs", ntmp->ntm_mountp, &ntfs_vnodeops, &vp); 723 if(error) { 724 ntfs_frele(fp); 725 ntfs_ntput(ip); 726 return (error); 727 } 728 dprintf(("ntfs_vget: vnode: %p for ntnode: %d\n", vp,ino)); 729 730 fp->f_vp = vp; 731 vp->v_data = fp; 732 vp->v_type = f_type; 733 734 vp->v_bufobj.bo_ops = &ntfs_vnbufops; 735 vp->v_bufobj.bo_private = vp; 736 737 if (ino == NTFS_ROOTINO) 738 vp->v_vflag |= VV_ROOT; 739 740 ntfs_ntput(ip); 741 742 if (lkflags & LK_TYPE_MASK) { 743 error = vn_lock(vp, lkflags, td); 744 if (error) { 745 vput(vp); 746 return (error); 747 } 748 } 749 750 *vpp = vp; 751 return (0); 752 753 } 754 755 static int 756 ntfs_vget( 757 struct mount *mp, 758 ino_t ino, 759 int lkflags, 760 struct vnode **vpp) 761 { 762 return ntfs_vgetex(mp, ino, NTFS_A_DATA, NULL, lkflags, 0, 763 curthread, vpp); 764 } 765 766 static void 767 ntfs_bufstrategy(struct bufobj *bo, struct buf *bp) 768 { 769 struct vnode *vp; 770 int rc; 771 772 vp = bo->bo_private; 773 KASSERT(bo == &vp->v_bufobj, ("BO/VP mismatch: vp %p bo %p != %p", 774 vp, &vp->v_bufobj, bo)); 775 rc = VOP_STRATEGY(vp, bp); 776 KASSERT(rc == 0, ("NTFS VOP_STRATEGY failed: bp=%p, " 777 "vp=%p, rc=%d", bp, vp, rc)); 778 } 779 780 static struct vfsops ntfs_vfsops = { 781 .vfs_fhtovp = ntfs_fhtovp, 782 .vfs_init = ntfs_init, 783 .vfs_cmount = ntfs_cmount, 784 .vfs_mount = ntfs_mount, 785 .vfs_root = ntfs_root, 786 .vfs_statfs = ntfs_statfs, 787 .vfs_uninit = ntfs_uninit, 788 .vfs_unmount = ntfs_unmount, 789 .vfs_vget = ntfs_vget, 790 .vfs_vptofh = ntfs_vptofh, 791 }; 792 VFS_SET(ntfs_vfsops, ntfs, 0); 793 MODULE_VERSION(ntfs, 1);
Cache object: 09d205ba9f48c1a25baf0c5d1dd7aff4
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