/*
* ntfs-apply.c
*
- * Apply a WIM image to a NTFS volume, restoring everything we can, including
- * security data and alternate data streams. There should be no loss of
- * information.
+ * Apply a WIM image to a NTFS volume. We restore everything we can, including
+ * security data and alternate data streams.
*/
/*
* This file is part of wimlib, a library for working with WIM files.
*
* wimlib is free software; you can redistribute it and/or modify it under the
- * terms of the GNU Lesser General Public License as published by the Free
- * Software Foundation; either version 2.1 of the License, or (at your option)
+ * terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 3 of the License, or (at your option)
* any later version.
*
* wimlib is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
- * A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
- * You should have received a copy of the GNU Lesser General Public License
+ * You should have received a copy of the GNU General Public License
* along with wimlib; if not, see http://www.gnu.org/licenses/.
*/
WIMStruct *w;
};
-extern int _ntfs_set_file_security(ntfs_volume *vol, ntfs_inode *ni,
- u32 selection, const char *attr);
-extern int _ntfs_set_file_attributes(ntfs_inode *ni, s32 attrib);
+
+#ifndef WITH_NEW_NTFS_3G
+extern int ntfs_set_inode_security(ntfs_inode *ni, u32 selection,
+ const char *attr);
+extern int ntfs_set_inode_attributes(ntfs_inode *ni, u32 attrib);
+#endif
/*
* Extracts a WIM resource to a NTFS attribute.
ntfs_attr *na)
{
u64 bytes_remaining = wim_resource_size(lte);
- char buf[min(WIM_CHUNK_SIZE, bytes_remaining)];
+ u8 buf[min(WIM_CHUNK_SIZE, bytes_remaining)];
u64 offset = 0;
int ret = 0;
u8 hash[SHA1_HASH_SIZE];
sha1_final(hash, &ctx);
if (!hashes_equal(hash, lte->hash)) {
ERROR("Invalid checksum on a WIM resource "
- "(detected when extracting to NTFS stream file)");
+ "(detected when extracting to NTFS stream)");
ERROR("The following WIM resource is invalid:");
print_lookup_table_entry(lte);
return WIMLIB_ERR_INVALID_RESOURCE_HASH;
ntfschar *stream_name = AT_UNNAMED;
u32 stream_name_len = 0;
- DEBUG("Writing NTFS data streams for `%s'", dentry->full_path_utf8);
+ DEBUG("Writing %u NTFS data stream%s for `%s'",
+ dentry->num_ads + 1,
+ (dentry->num_ads == 0 ? "" : "s"),
+ dentry->full_path_utf8);
while (1) {
struct lookup_table_entry *lte;
ntfs_attr *na;
- lte = dentry_stream_lte(dentry, 0, w->lookup_table);
- na = ntfs_attr_open(ni, AT_DATA, stream_name, stream_name_len);
- if (!na) {
- ERROR_WITH_ERRNO("Failed to open a data stream of "
- "extracted file `%s'",
- dentry->full_path_utf8);
- ret = WIMLIB_ERR_NTFS_3G;
- break;
+ lte = dentry_stream_lte(dentry, stream_idx, w->lookup_table);
+
+ if (stream_name_len) {
+ /* Create an empty named stream. */
+ ret = ntfs_attr_add(ni, AT_DATA, stream_name,
+ stream_name_len, NULL, 0);
+ if (ret != 0) {
+ ERROR_WITH_ERRNO("Failed to create name data "
+ "stream for extracted file "
+ "`%s'",
+ dentry->full_path_utf8);
+ ret = WIMLIB_ERR_NTFS_3G;
+ break;
+
+ }
}
- if (lte && wim_resource_size(lte) != 0)
+ /* If there's no lookup table entry, it's an empty stream.
+ * Otherwise, we must open the attribute and extract the data.
+ * */
+ if (lte) {
+ na = ntfs_attr_open(ni, AT_DATA, stream_name, stream_name_len);
+ if (!na) {
+ ERROR_WITH_ERRNO("Failed to open a data stream of "
+ "extracted file `%s'",
+ dentry->full_path_utf8);
+ ret = WIMLIB_ERR_NTFS_3G;
+ break;
+ }
ret = extract_wim_resource_to_ntfs_attr(lte, na);
- ntfs_attr_close(na);
- if (ret != 0)
- break;
+ if (ret != 0)
+ break;
+ ntfs_attr_close(na);
+ }
if (stream_idx == dentry->num_ads)
break;
stream_name = (ntfschar*)dentry->ads_entries[stream_idx].stream_name;
*/
static int wim_apply_hardlink_ntfs(const struct dentry *from_dentry,
const struct dentry *to_dentry,
- ntfs_inode *dir_ni)
+ ntfs_inode *dir_ni,
+ ntfs_inode **to_ni_ret)
{
int ret;
+ char *p;
+ char orig;
+ const char *dir_name;
+
ntfs_inode *to_ni;
+ ntfs_volume *vol;
+
+ wimlib_assert(dentry_is_regular_file(from_dentry)
+ && dentry_is_regular_file(to_dentry));
+
+ if (ntfs_inode_close(dir_ni) != 0) {
+ ERROR_WITH_ERRNO("Error closing directory");
+ return WIMLIB_ERR_NTFS_3G;
+ }
+
+ vol = dir_ni->vol;
DEBUG("Extracting NTFS hard link `%s' => `%s'",
from_dentry->full_path_utf8, to_dentry->extracted_file);
- to_ni = ntfs_pathname_to_inode(dir_ni->vol, NULL,
+ to_ni = ntfs_pathname_to_inode(vol, NULL,
to_dentry->extracted_file);
if (!to_ni) {
ERROR_WITH_ERRNO("Could not find NTFS inode for `%s'",
to_dentry->extracted_file);
return WIMLIB_ERR_NTFS_3G;
}
+ p = from_dentry->full_path_utf8 + from_dentry->full_path_utf8_len;
+ do {
+ p--;
+ } while (*p != '/');
+
+ orig = *p;
+ *p = '\0';
+ dir_name = from_dentry->full_path_utf8;
+
+ dir_ni = ntfs_pathname_to_inode(vol, NULL, dir_name);
+ if (!dir_ni) {
+ ERROR_WITH_ERRNO("Could not find NTFS inode for `%s'",
+ from_dentry->full_path_utf8);
+ *p = orig;
+ return WIMLIB_ERR_NTFS_3G;
+ }
+ *p = orig;
+
ret = ntfs_link(to_ni, dir_ni,
(ntfschar*)from_dentry->file_name,
from_dentry->file_name_len / 2);
to_dentry->extracted_file);
ret = WIMLIB_ERR_NTFS_3G;
}
- if (ntfs_inode_close(to_ni) != 0) {
- ERROR_WITH_ERRNO("Failed to close NTFS inode for `%s'",
- to_dentry->extracted_file);
- ret = WIMLIB_ERR_NTFS_3G;
- }
+ *to_ni_ret = to_ni;
return ret;
}
{
DEBUG("Setting NTFS file attributes on `%s' to %#"PRIx32,
dentry->full_path_utf8, dentry->attributes);
- if (!_ntfs_set_file_attributes(ni, dentry->attributes)) {
+ if (ntfs_set_inode_attributes(ni, dentry->attributes)) {
ERROR("Failed to set NTFS file attributes on `%s'",
dentry->full_path_utf8);
return WIMLIB_ERR_NTFS_3G;
wimlib_assert(dentry->security_id < sd->num_entries);
DEBUG("Applying security descriptor %d to `%s'",
dentry->security_id, dentry->full_path_utf8);
- if (!_ntfs_set_file_security(ni->vol, ni, ~0,
- sd->descriptors[dentry->security_id]))
+ u32 selection = OWNER_SECURITY_INFORMATION |
+ GROUP_SECURITY_INFORMATION |
+ DACL_SECURITY_INFORMATION |
+ SACL_SECURITY_INFORMATION;
+
+ if (ntfs_set_inode_security(ni, selection,
+ (const char*)sd->descriptors[dentry->security_id]))
{
ERROR_WITH_ERRNO("Failed to set security data on `%s'",
dentry->full_path_utf8);
wimlib_assert(dentry->attributes & FILE_ATTRIBUTE_REPARSE_POINT);
- lte = dentry_first_lte(dentry, w->lookup_table);
+ lte = dentry_unnamed_lte(dentry, w->lookup_table);
+
+ DEBUG("Applying reparse data to `%s'", dentry->full_path_utf8);
if (!lte) {
ERROR("Could not find reparse data for `%s'",
return WIMLIB_ERR_INVALID_DENTRY;
}
- char reparse_data_buf[8 + wim_resource_size(lte)];
- char *p = reparse_data_buf;
+ u8 reparse_data_buf[8 + wim_resource_size(lte)];
+ u8 *p = reparse_data_buf;
p = put_u32(p, dentry->reparse_tag); /* ReparseTag */
p = put_u16(p, wim_resource_size(lte)); /* ReparseDataLength */
p = put_u16(p, 0); /* Reserved */
if (ret != 0)
return ret;
- ret = ntfs_set_ntfs_reparse_data(ni, reparse_data_buf,
+ ret = ntfs_set_ntfs_reparse_data(ni, (char*)reparse_data_buf,
wim_resource_size(lte) + 8, 0);
if (ret != 0) {
ERROR_WITH_ERRNO("Failed to set NTFS reparse data on `%s'",
return 0;
}
+static int do_wim_apply_dentry_ntfs(struct dentry *dentry, ntfs_inode *dir_ni,
+ WIMStruct *w);
+
+/*
+ * If @dentry is part of a hard link group, search for hard-linked dentries in
+ * the same directory that have a nonempty DOS (short) filename. There should
+ * be exactly 0 or 1 such dentries. If there is 1, extract that dentry first,
+ * so that the DOS name is correctly associated with the corresponding long name
+ * in the Win32 namespace, and not any of the additional names in the POSIX
+ * namespace created from hard links.
+ */
+static int preapply_dentry_with_dos_name(struct dentry *dentry,
+ ntfs_inode **dir_ni_p,
+ WIMStruct *w)
+{
+ struct dentry *other;
+ struct dentry *dentry_with_dos_name;
+
+ dentry_with_dos_name = NULL;
+ list_for_each_entry(other, &dentry->link_group_list,
+ link_group_list)
+ {
+ if (dentry->parent == other->parent && other->short_name_len) {
+ if (dentry_with_dos_name) {
+ ERROR("Found multiple DOS names for file `%s' "
+ "in the same directory",
+ dentry_with_dos_name->full_path_utf8);
+ return WIMLIB_ERR_INVALID_DENTRY;
+ }
+ dentry_with_dos_name = other;
+ }
+ }
+ /* If there's a dentry with a DOS name, extract it first */
+ if (dentry_with_dos_name
+ && !dentry_with_dos_name->extracted_file)
+ {
+ char *p;
+ const char *dir_name;
+ char orig;
+ int ret;
+ ntfs_volume *vol = (*dir_ni_p)->vol;
+
+ DEBUG("pre-applying DOS name `%s'",
+ dentry_with_dos_name->full_path_utf8);
+ ret = do_wim_apply_dentry_ntfs(dentry_with_dos_name,
+ *dir_ni_p, w);
+ if (ret != 0)
+ return ret;
+ p = dentry->full_path_utf8 + dentry->full_path_utf8_len;
+ do {
+ p--;
+ } while (*p != '/');
+
+ orig = *p;
+ *p = '\0';
+ dir_name = dentry->full_path_utf8;
+
+ *dir_ni_p = ntfs_pathname_to_inode(vol, NULL, dir_name);
+ *p = orig;
+ if (!*dir_ni_p) {
+ ERROR_WITH_ERRNO("Could not find NTFS inode for `%s'",
+ dir_name);
+ return WIMLIB_ERR_NTFS_3G;
+ }
+ }
+ return 0;
+}
+
/*
* Applies a WIM dentry to a NTFS filesystem.
*
* @return: 0 on success; nonzero on failure.
*/
static int do_wim_apply_dentry_ntfs(struct dentry *dentry, ntfs_inode *dir_ni,
- WIMStruct *w)
+ WIMStruct *w)
{
- ntfs_inode *ni;
int ret = 0;
mode_t type;
+ ntfs_inode *ni = NULL;
+ bool is_hardlink = false;
+ ntfs_volume *vol = dir_ni->vol;
if (dentry->attributes & FILE_ATTRIBUTE_DIRECTORY) {
type = S_IFDIR;
} else {
+ struct dentry *other;
+
+ /* Apply hard-linked directory in same directory with DOS name
+ * (if there is one) before this dentry */
+ if (dentry->short_name_len == 0) {
+ ret = preapply_dentry_with_dos_name(dentry,
+ &dir_ni, w);
+ if (ret != 0)
+ return ret;
+ }
+
type = S_IFREG;
- const struct list_head *head = &dentry->link_group_list;
- if (head->next != head) {
- /* This dentry is one of a hard link set of at least 2
- * dentries. If one of the other dentries has already
- * been extracted, make a hard link to the file
- * corresponding to this already-extracted directory.
- * Otherwise, extract the file, and set the
- * dentry->extracted_file field so that other dentries
- * in the hard link group can link to it. */
- struct dentry *other;
- list_for_each_entry(other, head, link_group_list) {
- if (other->extracted_file) {
- return wim_apply_hardlink_ntfs(
- dentry, other, dir_ni);
+ /* See if we can make a hard link */
+ list_for_each_entry(other, &dentry->link_group_list,
+ link_group_list) {
+ if (other->extracted_file) {
+ /* Already extracted another dentry in the hard
+ * link group. We can make a hard link instead
+ * of extracting the file data. */
+ ret = wim_apply_hardlink_ntfs(dentry, other,
+ dir_ni, &ni);
+ is_hardlink = true;
+ if (ret) {
+ goto out_close_dir_ni;
+ } else {
+ dentry->extracted_file = dentry->full_path_utf8;
+ goto out_set_dos_name;
}
}
}
- FREE(dentry->extracted_file);
- dentry->extracted_file = STRDUP(dentry->full_path_utf8);
- if (!dentry->extracted_file) {
- ERROR("Failed to allocate memory for filename");
- return WIMLIB_ERR_NOMEM;
- }
+ /* Can't make a hard link; extract the file itself */
+ dentry->extracted_file = dentry->full_path_utf8;
}
/*
* Create a directory or file.
*
- * Note: if it's a reparse point (such as a symbolic link), we still
- * pass S_IFREG here, since we manually set the reparse data later.
+ * Note: For symbolic links that are not directory junctions, pass
+ * S_IFREG here, since we manually set the reparse data later.
*/
ni = ntfs_create(dir_ni, 0, (ntfschar*)dentry->file_name,
dentry->file_name_len / 2, type);
ERROR_WITH_ERRNO("Could not create NTFS object for `%s'",
dentry->full_path_utf8);
ret = WIMLIB_ERR_NTFS_3G;
- goto out;
+ goto out_close_dir_ni;
}
/* Write the data streams, unless this is a directory or reparse point
!(dentry->attributes & FILE_ATTRIBUTE_REPARSE_POINT)) {
ret = write_ntfs_data_streams(ni, dentry, w);
if (ret != 0)
- goto out;
+ goto out_close_dir_ni;
}
ret = apply_file_attributes_and_security_data(ni, dentry, w);
if (ret != 0)
- goto out;
+ goto out_close_dir_ni;
if (dentry->attributes & FILE_ATTR_REPARSE_POINT) {
ret = apply_reparse_data(ni, dentry, w);
if (ret != 0)
- goto out;
+ goto out_close_dir_ni;
}
- if (ntfs_inode_close_in_dir(ni, dir_ni) != 0) {
- ERROR_WITH_ERRNO("Failed to close new inode");
- ret = WIMLIB_ERR_NTFS_3G;
- goto out;
+out_set_dos_name:
+ /* Set DOS (short) name if given */
+ if (dentry->short_name_len != 0) {
+
+ char *short_name_utf8;
+ size_t short_name_utf8_len;
+ short_name_utf8 = utf16_to_utf8(dentry->short_name,
+ dentry->short_name_len,
+ &short_name_utf8_len);
+ if (!short_name_utf8) {
+ ERROR("Out of memory");
+ ret = WIMLIB_ERR_NOMEM;
+ goto out_close_dir_ni;
+ }
+
+ if (is_hardlink) {
+ char *p;
+ char orig;
+ const char *dir_name;
+
+ /* ntfs_set_ntfs_dos_name() closes the inodes in the
+ * wrong order if we have applied a hard link. Close
+ * them ourselves, then re-open then. */
+ if (ntfs_inode_close(dir_ni) != 0) {
+ if (ret == 0)
+ ret = WIMLIB_ERR_NTFS_3G;
+ ERROR_WITH_ERRNO("Failed to close directory inode");
+ }
+ if (ntfs_inode_close(ni) != 0) {
+ if (ret == 0)
+ ret = WIMLIB_ERR_NTFS_3G;
+ ERROR_WITH_ERRNO("Failed to close hard link target inode");
+ }
+ p = dentry->full_path_utf8 + dentry->full_path_utf8_len;
+ do {
+ p--;
+ } while (*p != '/');
+
+ orig = *p;
+ *p = '\0';
+ dir_name = dentry->full_path_utf8;
+
+ dir_ni = ntfs_pathname_to_inode(vol, NULL, dir_name);
+ *p = orig;
+ if (!dir_ni) {
+ ERROR_WITH_ERRNO("Could not find NTFS inode for `%s'",
+ dir_name);
+ return WIMLIB_ERR_NTFS_3G;
+ }
+ ni = ntfs_pathname_to_inode(vol, dir_ni,
+ dentry->file_name_utf8);
+ if (!ni) {
+ ERROR_WITH_ERRNO("Could not find NTFS inode for `%s'",
+ dir_name);
+ return WIMLIB_ERR_NTFS_3G;
+ }
+ }
+
+ DEBUG("Setting short (DOS) name of `%s' to %s",
+ dentry->full_path_utf8, short_name_utf8);
+
+ ret = ntfs_set_ntfs_dos_name(ni, dir_ni, short_name_utf8,
+ short_name_utf8_len, 0);
+ FREE(short_name_utf8);
+ if (ret != 0) {
+ ERROR_WITH_ERRNO("Could not set DOS (short) name for `%s'",
+ dentry->full_path_utf8);
+ ret = WIMLIB_ERR_NTFS_3G;
+ }
+ /* inodes have been closed by ntfs_set_ntfs_dos_name(). */
+ return ret;
+ }
+
+out_close_dir_ni:
+ if (ntfs_inode_close(dir_ni) != 0) {
+ if (ret == 0)
+ ret = WIMLIB_ERR_NTFS_3G;
+ ERROR_WITH_ERRNO("Failed to close directory inode");
+ }
+ if (ni && ntfs_inode_close(ni) != 0) {
+ if (ret == 0)
+ ret = WIMLIB_ERR_NTFS_3G;
+ ERROR_WITH_ERRNO("Failed to close inode");
}
-out:
return ret;
}
int extract_flags = args->extract_flags;
WIMStruct *w = args->w;
ntfs_inode *dir_ni;
- int ret;
char *p;
char orig;
const char *dir_name;
+ if (dentry->extracted_file)
+ return 0;
+
wimlib_assert(dentry->full_path_utf8);
DEBUG("Applying dentry `%s' to NTFS", dentry->full_path_utf8);
dir_name);
return WIMLIB_ERR_NTFS_3G;
}
- DEBUG("Found NTFS inode for `%s'", dir_name);
+ return do_wim_apply_dentry_ntfs(dentry, dir_ni, w);
+}
+
+static int wim_apply_dentry_timestamps(struct dentry *dentry, void *arg)
+{
+ struct ntfs_apply_args *args = arg;
+ ntfs_volume *vol = args->vol;
+ u8 *p;
+ u8 buf[24];
+ ntfs_inode *ni;
+ int ret = 0;
+
+
+ DEBUG("Setting timestamps on `%s'", dentry->full_path_utf8);
+
+ ni = ntfs_pathname_to_inode(vol, NULL, dentry->full_path_utf8);
+ if (!ni) {
+ ERROR_WITH_ERRNO("Could not find NTFS inode for `%s'",
+ dentry->full_path_utf8);
+ return WIMLIB_ERR_NTFS_3G;
+ }
- ret = do_wim_apply_dentry_ntfs(dentry, dir_ni, w);
+ p = buf;
+ p = put_u64(p, dentry->creation_time);
+ p = put_u64(p, dentry->last_write_time);
+ p = put_u64(p, dentry->last_access_time);
+ ret = ntfs_inode_set_times(ni, (const char*)buf, 3 * sizeof(u64), 0);
+ if (ret != 0) {
+ ERROR_WITH_ERRNO("Failed to set NTFS timestamps on `%s'",
+ dentry->full_path_utf8);
+ ret = WIMLIB_ERR_NTFS_3G;
+ }
- if (ntfs_inode_close(dir_ni) != 0) {
+ if (ntfs_inode_close(ni) != 0) {
if (ret == 0)
ret = WIMLIB_ERR_NTFS_3G;
- ERROR_WITH_ERRNO("Failed to close directory inode");
+ ERROR_WITH_ERRNO("Failed to close NTFS inode for `%s'",
+ dentry->full_path_utf8);
}
return ret;
+}
+static int dentry_clear_extracted_file(struct dentry *dentry, void *ignore)
+{
+ if (dentry->extracted_file != dentry->full_path_utf8)
+ FREE(dentry->extracted_file);
+ dentry->extracted_file = NULL;
+ return 0;
}
static int do_wim_apply_image_ntfs(WIMStruct *w, const char *device, int extract_flags)
{
ntfs_volume *vol;
int ret;
+ struct dentry *root;
+ struct ntfs_apply_args args;
+ DEBUG("Mounting NTFS volume `%s'", device);
vol = ntfs_mount(device, 0);
if (!vol) {
ERROR_WITH_ERRNO("Failed to mount NTFS volume `%s'", device);
return WIMLIB_ERR_NTFS_3G;
}
- struct ntfs_apply_args args = {
- .vol = vol,
- .extract_flags = extract_flags,
- .w = w,
- };
- ret = for_dentry_in_tree(wim_root_dentry(w), wim_apply_dentry_ntfs,
- &args);
+ args.vol = vol;
+ args.extract_flags = extract_flags;
+ args.w = w;
+ root = wim_root_dentry(w);
+
+ for_dentry_in_tree(root, dentry_clear_extracted_file, NULL);
+
+ ret = for_dentry_in_tree(root, wim_apply_dentry_ntfs, &args);
+ if (ret != 0)
+ goto out;
+
+ if (extract_flags & WIMLIB_EXTRACT_FLAG_VERBOSE)
+ printf("Setting timestamps of extracted files on NTFS "
+ "volume `%s'\n", device);
+ ret = for_dentry_in_tree_depth(root, wim_apply_dentry_timestamps,
+ &args);
+
+ if (ret == 0 && (extract_flags & WIMLIB_EXTRACT_FLAG_VERBOSE))
+ printf("Finished applying image %d of %s to NTFS "
+ "volume `%s'\n",
+ w->current_image,
+ w->filename ? w->filename : "WIM",
+ device);
+out:
+ DEBUG("Unmounting NTFS volume `%s'", device);
if (ntfs_umount(vol, FALSE) != 0) {
ERROR_WITH_ERRNO("Failed to unmount NTFS volume `%s'", device);
if (ret == 0)
if (ret != 0)
return ret;
-#if 0
- if (getuid() != 0) {
- ERROR("We are not root, but NTFS-3g requires root privileges to set arbitrary");
- ERROR("security data on the NTFS filesystem. Please run this program as root");
- ERROR("if you want to extract a WIM image while preserving NTFS-specific");
- ERROR("information.");
-
- return WIMLIB_ERR_NOT_ROOT;
- }
-#endif
return do_wim_apply_image_ntfs(w, device, flags);
}
git://wimlib.net / wimlib / blobdiff