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   1 /*
   2  * ntfs-apply.c
   3  *
   4  * Apply a WIM image to a NTFS volume.  We restore everything we can, including
   5  * security data and alternate data streams.
   6  */
   7
   8 /*
   9  * Copyright (C) 2012 Eric Biggers
  10  *
  11  * This file is part of wimlib, a library for working with WIM files.
  12  *
  13  * wimlib is free software; you can redistribute it and/or modify it under the
  14  * terms of the GNU General Public License as published by the Free
  15  * Software Foundation; either version 3 of the License, or (at your option)
  16  * any later version.
  17  *
  18  * wimlib is distributed in the hope that it will be useful, but WITHOUT ANY
  19  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
  20  * A PARTICULAR PURPOSE. See the GNU General Public License for more
  21  * details.
  22  *
  23  * You should have received a copy of the GNU General Public License
  24  * along with wimlib; if not, see http://www.gnu.org/licenses/.
  25  */
  26
  27
  28 #include "config.h"
  29
  30
  31 #include <ntfs-3g/endians.h>
  32 #include <ntfs-3g/types.h>
  33
  34 #include "wimlib_internal.h"
  35 #include "dentry.h"
  36 #include "lookup_table.h"
  37 #include "buffer_io.h"
  38 #include <ntfs-3g/layout.h>
  39 #include <ntfs-3g/acls.h>
  40 #include <ntfs-3g/attrib.h>
  41 #include <ntfs-3g/security.h> /* security.h before xattrs.h */
  42 #include <ntfs-3g/xattrs.h>
  43 #include <ntfs-3g/reparse.h>
  44 #include <stdlib.h>
  45 #include <unistd.h>
  46
  47 static int extract_wim_chunk_to_ntfs_attr(const u8 *buf, size_t len,
  48                                           u64 offset, void *arg)
  49 {
  50         ntfs_attr *na = arg;
  51         if (ntfs_attr_pwrite(na, offset, len, buf) == len) {
  52                 return 0;
  53         } else {
  54                 ERROR_WITH_ERRNO("Error extracting WIM resource to NTFS attribute");
  55                 return WIMLIB_ERR_WRITE;
  56         }
  57 }
  58
  59 /*
  60  * Extracts a WIM resource to a NTFS attribute.
  61  */
  62 static int
  63 extract_wim_resource_to_ntfs_attr(const struct lookup_table_entry *lte,
  64                                   ntfs_attr *na)
  65 {
  66         return extract_wim_resource(lte, wim_resource_size(lte),
  67                                     extract_wim_chunk_to_ntfs_attr, na);
  68 }
  69
  70 /* Writes the data streams to a NTFS file
  71  *
  72  * @ni:      The NTFS inode for the file.
  73  * @inode:   The WIM dentry that has an inode containing the streams.
  74  *
  75  * Returns 0 on success, nonzero on failure.
  76  */
  77 static int write_ntfs_data_streams(ntfs_inode *ni, const struct dentry *dentry,
  78                                    union wimlib_progress_info *progress_info)
  79 {
  80         int ret = 0;
  81         unsigned stream_idx = 0;
  82         ntfschar *stream_name = AT_UNNAMED;
  83         u32 stream_name_len = 0;
  84         const struct inode *inode = dentry->d_inode;
  85
  86         DEBUG("Writing %u NTFS data stream%s for `%s'",
  87               inode->num_ads + 1,
  88               (inode->num_ads == 0 ? "" : "s"),
  89               dentry->full_path_utf8);
  90
  91         while (1) {
  92                 struct lookup_table_entry *lte;
  93
  94                 lte = inode_stream_lte_resolved(inode, stream_idx);
  95
  96                 if (stream_name_len) {
  97                         /* Create an empty named stream. */
  98                         ret = ntfs_attr_add(ni, AT_DATA, stream_name,
  99                                             stream_name_len, NULL, 0);
 100                         if (ret != 0) {
 101                                 ERROR_WITH_ERRNO("Failed to create name data "
 102                                                  "stream for extracted file "
 103                                                  "`%s'",
 104                                                  dentry->full_path_utf8);
 105                                 ret = WIMLIB_ERR_NTFS_3G;
 106                                 break;
 107
 108                         }
 109                 }
 110                 /* If there's no lookup table entry, it's an empty stream.
 111                  * Otherwise, we must open the attribute and extract the data.
 112                  * */
 113                 if (lte) {
 114                         ntfs_attr *na;
 115
 116                         na = ntfs_attr_open(ni, AT_DATA, stream_name, stream_name_len);
 117                         if (!na) {
 118                                 ERROR_WITH_ERRNO("Failed to open a data stream of "
 119                                                  "extracted file `%s'",
 120                                                  dentry->full_path_utf8);
 121                                 ret = WIMLIB_ERR_NTFS_3G;
 122                                 break;
 123                         }
 124                         ret = ntfs_attr_truncate_solid(na, wim_resource_size(lte));
 125                         if (ret != 0) {
 126                                 ntfs_attr_close(na);
 127                                 break;
 128                         }
 129
 130                         ret = extract_wim_resource_to_ntfs_attr(lte, na);
 131                         ntfs_attr_close(na);
 132                         if (ret != 0)
 133                                 break;
 134                         progress_info->extract.completed_bytes += wim_resource_size(lte);
 135                 }
 136                 if (stream_idx == inode->num_ads)
 137                         break;
 138                 stream_name = (ntfschar*)inode->ads_entries[stream_idx].stream_name;
 139                 stream_name_len = inode->ads_entries[stream_idx].stream_name_len / 2;
 140                 stream_idx++;
 141         }
 142         return ret;
 143 }
 144
 145 /* Open the NTFS inode that corresponds to the parent of a WIM dentry. */
 146 static ntfs_inode *dentry_open_parent_ni(const struct dentry *dentry,
 147                                          ntfs_volume *vol)
 148 {
 149         char *p;
 150         const char *dir_name;
 151         ntfs_inode *dir_ni;
 152         char orig;
 153
 154         p = dentry->full_path_utf8 + dentry->full_path_utf8_len;
 155         do {
 156                 p--;
 157         } while (*p != '/');
 158
 159         orig = *p;
 160         *p = '\0';
 161         dir_name = dentry->full_path_utf8;
 162         dir_ni = ntfs_pathname_to_inode(vol, NULL, dir_name);
 163         if (!dir_ni) {
 164                 ERROR_WITH_ERRNO("Could not find NTFS inode for `%s'",
 165                                  dir_name);
 166         }
 167         *p = orig;
 168         return dir_ni;
 169 }
 170
 171 /*
 172  * Makes a NTFS hard link
 173  *
 174  * It is named @from_dentry->file_name and is located under the directory
 175  * specified by @dir_ni, and it is made to point to the previously extracted
 176  * file located at @inode->extracted_file.
 177  *
 178  * Return 0 on success, nonzero on failure.
 179  */
 180 static int apply_hardlink_ntfs(const struct dentry *from_dentry,
 181                                const struct inode *inode,
 182                                ntfs_inode *dir_ni,
 183                                ntfs_inode **to_ni_ret)
 184 {
 185         int ret;
 186         char *p;
 187         char orig;
 188         const char *dir_name;
 189
 190         ntfs_inode *to_ni;
 191         ntfs_volume *vol;
 192
 193         if (ntfs_inode_close(dir_ni) != 0) {
 194                 ERROR_WITH_ERRNO("Error closing directory");
 195                 return WIMLIB_ERR_NTFS_3G;
 196         }
 197
 198         vol = dir_ni->vol;
 199
 200         DEBUG("Extracting NTFS hard link `%s' => `%s'",
 201               from_dentry->full_path_utf8, inode->extracted_file);
 202
 203         to_ni = ntfs_pathname_to_inode(vol, NULL, inode->extracted_file);
 204         if (!to_ni) {
 205                 ERROR_WITH_ERRNO("Could not find NTFS inode for `%s'",
 206                                  inode->extracted_file);
 207                 return WIMLIB_ERR_NTFS_3G;
 208         }
 209
 210         *to_ni_ret = to_ni;
 211
 212         dir_ni = dentry_open_parent_ni(from_dentry, vol);
 213         if (!dir_ni)
 214                 return WIMLIB_ERR_NTFS_3G;
 215
 216         ret = ntfs_link(to_ni, dir_ni,
 217                         (ntfschar*)from_dentry->file_name,
 218                         from_dentry->file_name_len / 2);
 219         if (ret != 0) {
 220                 ERROR_WITH_ERRNO("Could not create hard link `%s' => `%s'",
 221                                  from_dentry->full_path_utf8,
 222                                  inode->extracted_file);
 223                 ret = WIMLIB_ERR_NTFS_3G;
 224         }
 225         return ret;
 226 }
 227
 228 static int
 229 apply_file_attributes_and_security_data(ntfs_inode *ni,
 230                                         ntfs_inode *dir_ni,
 231                                         const struct dentry *dentry,
 232                                         const WIMStruct *w)
 233 {
 234         DEBUG("Setting NTFS file attributes on `%s' to %#"PRIx32,
 235               dentry->full_path_utf8, dentry->d_inode->attributes);
 236         int ret;
 237         struct SECURITY_CONTEXT ctx;
 238         u32 attributes_le32;
 239         attributes_le32 = cpu_to_le32(dentry->d_inode->attributes);
 240         memset(&ctx, 0, sizeof(ctx));
 241         ctx.vol = ni->vol;
 242         ret = ntfs_xattr_system_setxattr(&ctx, XATTR_NTFS_ATTRIB,
 243                                          ni, dir_ni,
 244                                          (const char*)&attributes_le32,
 245                                          sizeof(u32), 0);
 246         if (ret != 0) {
 247                 ERROR("Failed to set NTFS file attributes on `%s'",
 248                        dentry->full_path_utf8);
 249                 return WIMLIB_ERR_NTFS_3G;
 250         }
 251         if (dentry->d_inode->security_id != -1) {
 252                 const struct wim_security_data *sd;
 253                 const char *descriptor;
 254
 255                 sd = wim_const_security_data(w);
 256                 wimlib_assert(dentry->d_inode->security_id < sd->num_entries);
 257                 descriptor = (const char *)sd->descriptors[dentry->d_inode->security_id];
 258                 DEBUG("Applying security descriptor %d to `%s'",
 259                       dentry->d_inode->security_id, dentry->full_path_utf8);
 260
 261                 ret = ntfs_xattr_system_setxattr(&ctx, XATTR_NTFS_ACL,
 262                                                  ni, dir_ni, descriptor,
 263                                                  sd->sizes[dentry->d_inode->security_id], 0);
 264
 265                 if (ret != 0) {
 266                         ERROR_WITH_ERRNO("Failed to set security data on `%s'",
 267                                         dentry->full_path_utf8);
 268                         return WIMLIB_ERR_NTFS_3G;
 269                 }
 270         }
 271         return 0;
 272 }
 273
 274 static int apply_reparse_data(ntfs_inode *ni, const struct dentry *dentry,
 275                               union wimlib_progress_info *progress_info)
 276 {
 277         struct lookup_table_entry *lte;
 278         int ret = 0;
 279
 280         lte = inode_unnamed_lte_resolved(dentry->d_inode);
 281
 282         DEBUG("Applying reparse data to `%s'", dentry->full_path_utf8);
 283
 284         if (!lte) {
 285                 ERROR("Could not find reparse data for `%s'",
 286                       dentry->full_path_utf8);
 287                 return WIMLIB_ERR_INVALID_DENTRY;
 288         }
 289
 290         if (wim_resource_size(lte) >= 0xffff) {
 291                 ERROR("Reparse data of `%s' is too long (%"PRIu64" bytes)",
 292                       dentry->full_path_utf8, wim_resource_size(lte));
 293                 return WIMLIB_ERR_INVALID_DENTRY;
 294         }
 295
 296         u8 reparse_data_buf[8 + wim_resource_size(lte)];
 297         u8 *p = reparse_data_buf;
 298         p = put_u32(p, dentry->d_inode->reparse_tag); /* ReparseTag */
 299         p = put_u16(p, wim_resource_size(lte)); /* ReparseDataLength */
 300         p = put_u16(p, 0); /* Reserved */
 301
 302         ret = read_full_wim_resource(lte, p, 0);
 303         if (ret != 0)
 304                 return ret;
 305
 306         ret = ntfs_set_ntfs_reparse_data(ni, (char*)reparse_data_buf,
 307                                          wim_resource_size(lte) + 8, 0);
 308         if (ret != 0) {
 309                 ERROR_WITH_ERRNO("Failed to set NTFS reparse data on `%s'",
 310                                  dentry->full_path_utf8);
 311                 return WIMLIB_ERR_NTFS_3G;
 312         }
 313         progress_info->extract.completed_bytes += wim_resource_size(lte);
 314         return 0;
 315 }
 316
 317 static int do_apply_dentry_ntfs(struct dentry *dentry, ntfs_inode *dir_ni,
 318                                 struct apply_args *args);
 319
 320 /*
 321  * If @dentry is part of a hard link group, search for hard-linked dentries in
 322  * the same directory that have a nonempty DOS (short) filename.  There should
 323  * be exactly 0 or 1 such dentries.  If there is 1, extract that dentry first,
 324  * so that the DOS name is correctly associated with the corresponding long name
 325  * in the Win32 namespace, and not any of the additional names in the POSIX
 326  * namespace created from hard links.
 327  */
 328 static int preapply_dentry_with_dos_name(struct dentry *dentry,
 329                                          ntfs_inode **dir_ni_p,
 330                                          struct apply_args *args)
 331 {
 332         struct dentry *other;
 333         struct dentry *dentry_with_dos_name;
 334
 335         dentry_with_dos_name = NULL;
 336         inode_for_each_dentry(other, dentry->d_inode) {
 337                 if (other != dentry && (dentry->parent == other->parent)
 338                     && other->short_name_len)
 339                 {
 340                         if (dentry_with_dos_name) {
 341                                 ERROR("Found multiple DOS names for file `%s' "
 342                                       "in the same directory",
 343                                       dentry_with_dos_name->full_path_utf8);
 344                                 return WIMLIB_ERR_INVALID_DENTRY;
 345                         }
 346                         dentry_with_dos_name = other;
 347                 }
 348         }
 349         /* If there's a dentry with a DOS name, extract it first */
 350         if (dentry_with_dos_name && !dentry_with_dos_name->is_extracted) {
 351                 char *p;
 352                 const char *dir_name;
 353                 char orig;
 354                 int ret;
 355                 ntfs_volume *vol = (*dir_ni_p)->vol;
 356
 357                 DEBUG("pre-applying DOS name `%s'",
 358                       dentry_with_dos_name->full_path_utf8);
 359                 ret = do_apply_dentry_ntfs(dentry_with_dos_name,
 360                                            *dir_ni_p, args);
 361                 if (ret != 0)
 362                         return ret;
 363
 364                 *dir_ni_p = dentry_open_parent_ni(dentry, vol);
 365                 if (!*dir_ni_p)
 366                         return WIMLIB_ERR_NTFS_3G;
 367         }
 368         return 0;
 369 }
 370
 371 /*
 372  * Applies a WIM dentry to a NTFS filesystem.
 373  *
 374  * @dentry:  The WIM dentry to apply
 375  * @dir_ni:  The NTFS inode for the parent directory
 376  *
 377  * @return:  0 on success; nonzero on failure.
 378  */
 379 static int do_apply_dentry_ntfs(struct dentry *dentry, ntfs_inode *dir_ni,
 380                                 struct apply_args *args)
 381 {
 382         int ret = 0;
 383         mode_t type;
 384         ntfs_inode *ni = NULL;
 385         bool is_hardlink = false;
 386         ntfs_volume *vol = dir_ni->vol;
 387         struct inode *inode = dentry->d_inode;
 388         dentry->is_extracted = true;
 389
 390         if (inode->attributes & FILE_ATTRIBUTE_DIRECTORY) {
 391                 type = S_IFDIR;
 392         } else {
 393                 /* If this dentry is hard-linked to any other dentries in the
 394                  * same directory, make sure to apply the one (if any) with a
 395                  * DOS name first.  Otherwise, NTFS-3g might not assign the file
 396                  * names correctly. */
 397                 if (dentry->short_name_len == 0) {
 398                         ret = preapply_dentry_with_dos_name(dentry,
 399                                                             &dir_ni, args);
 400                         if (ret != 0)
 401                                 return ret;
 402                 }
 403
 404                 type = S_IFREG;
 405
 406                 if (inode->link_count > 1) {
 407                         /* Already extracted another dentry in the hard link
 408                          * group.  We can make a hard link instead of extracting
 409                          * the file data. */
 410                         if (inode->extracted_file) {
 411                                 ret = apply_hardlink_ntfs(dentry, inode,
 412                                                           dir_ni, &ni);
 413                                 is_hardlink = true;
 414                                 if (ret)
 415                                         goto out_close_dir_ni;
 416                                 else
 417                                         goto out_set_dos_name;
 418                         }
 419                         /* Can't make a hard link; extract the file itself */
 420                         FREE(inode->extracted_file);
 421                         inode->extracted_file = STRDUP(dentry->full_path_utf8);
 422                         if (!inode->extracted_file) {
 423                                 ret = WIMLIB_ERR_NOMEM;
 424                                 goto out_close_dir_ni;
 425                         }
 426                 }
 427         }
 428
 429         /*
 430          * Create a directory or file.
 431          *
 432          * Note: For symbolic links that are not directory junctions, pass
 433          * S_IFREG here, since we manually set the reparse data later.
 434          */
 435         ni = ntfs_create(dir_ni, 0, (ntfschar*)dentry->file_name,
 436                          dentry->file_name_len / 2, type);
 437
 438         if (!ni) {
 439                 ERROR_WITH_ERRNO("Could not create NTFS object for `%s'",
 440                                  dentry->full_path_utf8);
 441                 ret = WIMLIB_ERR_NTFS_3G;
 442                 goto out_close_dir_ni;
 443         }
 444
 445         /* Write the data streams, unless this is a directory or reparse point
 446          * */
 447         if (!(inode->attributes & (FILE_ATTRIBUTE_REPARSE_POINT |
 448                                    FILE_ATTRIBUTE_DIRECTORY))) {
 449                 ret = write_ntfs_data_streams(ni, dentry, &args->progress);
 450                 if (ret != 0)
 451                         goto out_close_dir_ni;
 452         }
 453
 454
 455         ret = apply_file_attributes_and_security_data(ni, dir_ni,
 456                                                       dentry, args->w);
 457         if (ret != 0)
 458                 goto out_close_dir_ni;
 459
 460         if (inode->attributes & FILE_ATTR_REPARSE_POINT) {
 461                 ret = apply_reparse_data(ni, dentry, &args->progress);
 462                 if (ret != 0)
 463                         goto out_close_dir_ni;
 464         }
 465
 466 out_set_dos_name:
 467         /* Set DOS (short) name if given */
 468         if (dentry->short_name_len != 0) {
 469
 470                 char *short_name_utf8;
 471                 size_t short_name_utf8_len;
 472                 ret = utf16_to_utf8(dentry->short_name,
 473                                     dentry->short_name_len,
 474                                     &short_name_utf8,
 475                                     &short_name_utf8_len);
 476                 if (ret != 0)
 477                         goto out_close_dir_ni;
 478
 479                 if (is_hardlink) {
 480                         char *p;
 481                         char orig;
 482                         const char *dir_name;
 483
 484                         /* ntfs_set_ntfs_dos_name() closes the inodes in the
 485                          * wrong order if we have applied a hard link.   Close
 486                          * them ourselves, then re-open then. */
 487                         if (ntfs_inode_close(dir_ni) != 0) {
 488                                 if (ret == 0)
 489                                         ret = WIMLIB_ERR_NTFS_3G;
 490                                 ERROR_WITH_ERRNO("Failed to close directory inode");
 491                                 goto out_close_ni;
 492                         }
 493                         if (ntfs_inode_close(ni) != 0) {
 494                                 if (ret == 0)
 495                                         ret = WIMLIB_ERR_NTFS_3G;
 496                                 ERROR_WITH_ERRNO("Failed to close hard link target inode");
 497                                 goto out;
 498                         }
 499
 500                         dir_ni = dentry_open_parent_ni(dentry, vol);
 501                         if (!dir_ni) {
 502                                 ret = WIMLIB_ERR_NTFS_3G;
 503                                 goto out;
 504                         }
 505
 506                         ni = ntfs_pathname_to_inode(vol, dir_ni,
 507                                                     dentry->file_name_utf8);
 508                         if (!ni) {
 509                                 ERROR_WITH_ERRNO("Could not find NTFS inode for `%s'",
 510                                                  dentry->full_path_utf8);
 511                                 ntfs_inode_close(dir_ni);
 512                                 ret = WIMLIB_ERR_NTFS_3G;
 513                                 goto out_close_dir_ni;
 514                         }
 515                 }
 516
 517                 DEBUG("Setting short (DOS) name of `%s' to %s",
 518                       dentry->full_path_utf8, short_name_utf8);
 519
 520                 ret = ntfs_set_ntfs_dos_name(ni, dir_ni, short_name_utf8,
 521                                              short_name_utf8_len, 0);
 522                 FREE(short_name_utf8);
 523                 if (ret != 0) {
 524                         ERROR_WITH_ERRNO("Could not set DOS (short) name for `%s'",
 525                                          dentry->full_path_utf8);
 526                         ret = WIMLIB_ERR_NTFS_3G;
 527                 }
 528                 /* inodes have been closed by ntfs_set_ntfs_dos_name(). */
 529                 return ret;
 530         }
 531
 532 out_close_dir_ni:
 533         if (ni && dir_ni) {
 534                 if (ntfs_inode_close_in_dir(ni, dir_ni) != 0) {
 535                         ni = NULL;
 536                         if (ret == 0)
 537                                 ret = WIMLIB_ERR_NTFS_3G;
 538                         ERROR_WITH_ERRNO("Failed to close inode for `%s'",
 539                                          dentry->full_path_utf8);
 540                 }
 541         }
 542         if (ntfs_inode_close(dir_ni) != 0) {
 543                 if (ret == 0)
 544                         ret = WIMLIB_ERR_NTFS_3G;
 545                 ERROR_WITH_ERRNO("Failed to close directory inode");
 546         }
 547 out_close_ni:
 548         if (ni && ntfs_inode_close(ni) != 0) {
 549                 if (ret == 0)
 550                         ret = WIMLIB_ERR_NTFS_3G;
 551                 ERROR_WITH_ERRNO("Failed to close inode for `%s'",
 552                                  dentry->full_path_utf8);
 553         }
 554 out:
 555         return ret;
 556 }
 557
 558 static int apply_root_dentry_ntfs(const struct dentry *dentry,
 559                                   ntfs_volume *vol, const WIMStruct *w)
 560 {
 561         ntfs_inode *ni;
 562         int ret = 0;
 563
 564         wimlib_assert(dentry_is_directory(dentry));
 565         ni = ntfs_pathname_to_inode(vol, NULL, "/");
 566         if (!ni) {
 567                 ERROR_WITH_ERRNO("Could not find root NTFS inode");
 568                 return WIMLIB_ERR_NTFS_3G;
 569         }
 570         ret = apply_file_attributes_and_security_data(ni, ni, dentry, w);
 571         if (ntfs_inode_close(ni) != 0) {
 572                 ERROR_WITH_ERRNO("Failed to close NTFS inode for root "
 573                                  "directory");
 574                 ret = WIMLIB_ERR_NTFS_3G;
 575         }
 576         return ret;
 577 }
 578
 579 /* Applies a WIM dentry to the NTFS volume */
 580 int apply_dentry_ntfs(struct dentry *dentry, void *arg)
 581 {
 582         struct apply_args *args = arg;
 583         ntfs_volume *vol             = args->vol;
 584         int extract_flags            = args->extract_flags;
 585         WIMStruct *w                 = args->w;
 586         ntfs_inode *dir_ni;
 587         char *p;
 588         char orig;
 589         const char *dir_name;
 590
 591         if (dentry->is_extracted)
 592                 return 0;
 593
 594         if (extract_flags & WIMLIB_EXTRACT_FLAG_NO_STREAMS)
 595                 if (inode_unnamed_lte_resolved(dentry->d_inode))
 596                         return 0;
 597
 598         DEBUG("Applying dentry `%s' to NTFS", dentry->full_path_utf8);
 599
 600         if ((extract_flags & WIMLIB_EXTRACT_FLAG_VERBOSE) &&
 601              args->progress_func)
 602         {
 603                 args->progress.extract.cur_path = dentry->full_path_utf8;
 604                 args->progress_func(WIMLIB_PROGRESS_MSG_EXTRACT_DENTRY,
 605                                     &args->progress);
 606         }
 607
 608         if (dentry_is_root(dentry))
 609                 return apply_root_dentry_ntfs(dentry, vol, w);
 610
 611         dir_ni = dentry_open_parent_ni(dentry, vol);
 612         if (dir_ni)
 613                 return do_apply_dentry_ntfs(dentry, dir_ni, arg);
 614         else
 615                 return WIMLIB_ERR_NTFS_3G;
 616 }
 617
 618 int apply_dentry_timestamps_ntfs(struct dentry *dentry, void *arg)
 619 {
 620         struct apply_args *args = arg;
 621         ntfs_volume *vol = args->vol;
 622         u8 *p;
 623         u8 buf[24];
 624         ntfs_inode *ni;
 625         int ret = 0;
 626
 627         DEBUG("Setting timestamps on `%s'", dentry->full_path_utf8);
 628
 629         ni = ntfs_pathname_to_inode(vol, NULL, dentry->full_path_utf8);
 630         if (!ni) {
 631                 ERROR_WITH_ERRNO("Could not find NTFS inode for `%s'",
 632                                  dentry->full_path_utf8);
 633                 return WIMLIB_ERR_NTFS_3G;
 634         }
 635
 636         p = buf;
 637         p = put_u64(p, dentry->d_inode->creation_time);
 638         p = put_u64(p, dentry->d_inode->last_write_time);
 639         p = put_u64(p, dentry->d_inode->last_access_time);
 640         ret = ntfs_inode_set_times(ni, (const char*)buf, 3 * sizeof(u64), 0);
 641         if (ret != 0) {
 642                 ERROR_WITH_ERRNO("Failed to set NTFS timestamps on `%s'",
 643                                  dentry->full_path_utf8);
 644                 ret = WIMLIB_ERR_NTFS_3G;
 645         }
 646
 647         if (ntfs_inode_close(ni) != 0) {
 648                 if (ret == 0)
 649                         ret = WIMLIB_ERR_NTFS_3G;
 650                 ERROR_WITH_ERRNO("Failed to close NTFS inode for `%s'",
 651                                  dentry->full_path_utf8);
 652         }
 653         return ret;
 654 }