* the WIM. */
#define WIMLIB_ADD_IMAGE_FLAG_ROOT 0x80000000
-static void destroy_image_metadata(struct image_metadata *imd,
- struct lookup_table *lt)
+void destroy_image_metadata(struct image_metadata *imd,struct lookup_table *lt)
{
- free_dentry_tree(imd->root_dentry, lt, true);
+ free_dentry_tree(imd->root_dentry, lt);
free_security_data(imd->security_data);
+ free_link_group_table(imd->lgt);
/* Get rid of the lookup table entry for this image's metadata resource
* */
- lookup_table_remove(lt, imd->metadata_lte);
+ if (lt)
+ lookup_table_remove(lt, imd->metadata_lte);
}
/*
*
* @root: A dentry that has already been created for the root of the dentry
* tree.
- * @source_path: The path to the root of the tree on disk.
- * @root_stat: A pointer to a `struct stat' that contains the metadata for the
- * root of the tree on disk.
+ * @root_disk_path: The path to the root of the tree on disk.
* @lookup_table: The lookup table for the WIM file. For each file added to the
* dentry tree being built, an entry is added to the lookup table,
* unless an identical file is already in the lookup table. These
struct lookup_table* lookup_table,
int add_flags)
{
- DEBUG("`%s'", root_disk_path);
+ DEBUG("%s", root_disk_path);
struct stat root_stbuf;
- int ret;
+ int ret = 0;
int (*stat_fn)(const char *restrict, struct stat *restrict);
if (add_flags & WIMLIB_ADD_IMAGE_FLAG_DEREFERENCE)
ERROR("`%s' is not a directory", root_disk_path);
return WIMLIB_ERR_NOTDIR;
}
+ if (!S_ISREG(root_stbuf.st_mode) && !S_ISDIR(root_stbuf.st_mode)
+ && !S_ISLNK(root_stbuf.st_mode)) {
+ ERROR("`%s' is not a regular file, directory, or symbolic link.");
+ return WIMLIB_ERR_SPECIAL_FILE;
+ }
stbuf_to_dentry(&root_stbuf, root);
add_flags &= ~WIMLIB_ADD_IMAGE_FLAG_ROOT;
+ root->resolved = true;
if (dentry_is_directory(root)) {
/* Open the directory on disk */
continue;
strcpy(name + len + 1, p->d_name);
child = new_dentry(p->d_name);
- if (!child) {
- ERROR("No memory to allocate new dentry");
+ if (!child)
return WIMLIB_ERR_NOMEM;
- }
ret = build_dentry_tree(child, name, lookup_table,
add_flags);
link_dentry(child, root);
/* Archiving a symbolic link */
size_t symlink_buf_len;
char deref_name_buf[4096];
- ssize_t ret = readlink(root_disk_path, deref_name_buf,
- sizeof(deref_name_buf) - 1);
- if (ret == -1) {
+ ssize_t deref_name_len;
+
+ deref_name_len = readlink(root_disk_path, deref_name_buf,
+ sizeof(deref_name_buf) - 1);
+ if (deref_name_len == -1) {
ERROR_WITH_ERRNO("Failed to read target of "
"symbolic link `%s'", root_disk_path);
- return WIMLIB_ERR_STAT;
+ return WIMLIB_ERR_READLINK;
}
- deref_name_buf[ret] = '\0';
+ deref_name_buf[deref_name_len] = '\0';
DEBUG("Read symlink `%s'", deref_name_buf);
- void *symlink_buf = make_symlink_reparse_data_buf(deref_name_buf,
- &symlink_buf_len);
- if (!symlink_buf)
- return WIMLIB_ERR_NOMEM;
- DEBUG("Made symlink reparse data buf (len = %zu, name len = %zu)",
- symlink_buf_len, ret);
-
- u8 symlink_buf_hash[WIM_HASH_SIZE];
- sha1_buffer(symlink_buf, symlink_buf_len, symlink_buf_hash);
-
- ret = dentry_set_symlink_buf(root, symlink_buf_hash);
-
- if (ret != 0) {
- FREE(symlink_buf);
- return ret;
- }
- DEBUG("Created symlink buf");
-
- struct lookup_table_entry *lte;
- struct lookup_table_entry *existing_lte;
-
- existing_lte = __lookup_resource(lookup_table, symlink_buf_hash);
- if (existing_lte) {
- existing_lte->refcnt++;
- } else {
- DEBUG("Creating new lookup table entry");
- lte = new_lookup_table_entry();
- if (!lte) {
- FREE(symlink_buf);
- return WIMLIB_ERR_NOMEM;
- }
- lte->symlink_buf = symlink_buf;
- lte->resource_entry.original_size = symlink_buf_len;
- lte->resource_entry.size = symlink_buf_len;
- lte->is_symlink = true;
- memcpy(lte->hash, symlink_buf_hash, WIM_HASH_SIZE);
- lookup_table_insert(lookup_table, lte);
- }
+ ret = dentry_set_symlink(root, deref_name_buf,
+ lookup_table, NULL);
} else {
/* Regular file */
struct lookup_table_entry *lte;
+ u8 hash[SHA1_HASH_SIZE];
/* For each regular file, we must check to see if the file is in
* the lookup table already; if it is, we increment its refcnt;
* otherwise, we create a new lookup table entry and insert it.
* */
- ret = sha1sum(root_disk_path, root->hash);
+ ret = sha1sum(root_disk_path, hash);
if (ret != 0)
return ret;
- lte = __lookup_resource(lookup_table, root->hash);
+ lte = __lookup_resource(lookup_table, hash);
if (lte) {
lte->refcnt++;
+ DEBUG("Add lte reference %u for `%s'", lte->refcnt,
+ root_disk_path);
} else {
char *file_on_disk = STRDUP(root_disk_path);
if (!file_on_disk) {
return WIMLIB_ERR_NOMEM;
}
lte->file_on_disk = file_on_disk;
+ lte->resource_location = RESOURCE_IN_FILE_ON_DISK;
lte->resource_entry.original_size = root_stbuf.st_size;
lte->resource_entry.size = root_stbuf.st_size;
- memcpy(lte->hash, root->hash, WIM_HASH_SIZE);
+ copy_hash(lte->hash, hash);
lookup_table_insert(lookup_table, lte);
}
+ root->lte = lte;
}
return ret;
}
* entry is created that references the location of the file resource in the
* source WIM file through the other_wim_fp field of the lookup table entry.
*/
-static int add_lookup_table_entry_to_dest_wim(struct dentry *dentry, void *arg)
+static int add_lte_to_dest_wim(struct dentry *dentry, void *arg)
{
WIMStruct *src_wim, *dest_wim;
- struct lookup_table_entry *src_table_entry;
- struct lookup_table_entry *dest_table_entry;
src_wim = ((struct wim_pair*)arg)->src_wim;
dest_wim = ((struct wim_pair*)arg)->dest_wim;
- if (dentry_is_directory(dentry))
- return 0;
-
- src_table_entry = wim_lookup_resource(src_wim, dentry);
- if (!src_table_entry)
- return 0;
-
- dest_table_entry = wim_lookup_resource(dest_wim, dentry);
- if (dest_table_entry) {
- dest_table_entry->refcnt++;
- } else {
- dest_table_entry = new_lookup_table_entry();
- if (!dest_table_entry)
- return WIMLIB_ERR_NOMEM;
- dest_table_entry->other_wim_fp = src_wim->fp;
- dest_table_entry->other_wim_ctype =
- wimlib_get_compression_type(src_wim);
- dest_table_entry->refcnt = 1;
- memcpy(&dest_table_entry->resource_entry,
- &src_table_entry->resource_entry,
- sizeof(struct resource_entry));
- memcpy(dest_table_entry->hash, dentry->hash, WIM_HASH_SIZE);
- lookup_table_insert(dest_wim->lookup_table, dest_table_entry);
+ wimlib_assert(!dentry->resolved);
+
+ for (unsigned i = 0; i < (unsigned)dentry->num_ads + 1; i++) {
+ struct lookup_table_entry *src_lte, *dest_lte;
+ src_lte = dentry_stream_lte_unresolved(dentry, i,
+ src_wim->lookup_table);
+ if (!src_lte)
+ continue;
+ dest_lte = dentry_stream_lte_unresolved(dentry, i,
+ dest_wim->lookup_table);
+ if (dest_lte) {
+ dest_lte->refcnt++;
+ } else {
+ dest_lte = new_lookup_table_entry();
+ if (!dest_lte)
+ return WIMLIB_ERR_NOMEM;
+ dest_lte->wim = src_wim;
+ memcpy(&dest_lte->resource_entry,
+ &src_lte->resource_entry,
+ sizeof(struct resource_entry));
+ copy_hash(dest_lte->hash,
+ dentry_stream_hash_unresolved(dentry, i));
+ lookup_table_insert(dest_wim->lookup_table, dest_lte);
+ }
}
return 0;
}
struct image_metadata *imd;
struct image_metadata *new_imd;
struct wim_security_data *sd;
+ struct link_group_table *lgt;
DEBUG("Reallocating image metadata array for image_count = %u",
w->hdr.image_count + 1);
sd->refcnt = 1;
sd->total_length = 8;
+ lgt = new_link_group_table(9001);
+ if (!lgt)
+ goto out_free_security_data;
+
metadata_lte->resource_entry.flags = WIM_RESHDR_FLAG_METADATA;
- randomize_byte_array(metadata_lte->hash, WIM_HASH_SIZE);
+ random_hash(metadata_lte->hash);
lookup_table_insert(w->lookup_table, metadata_lte);
- w->hdr.image_count++;
+ new_imd = &imd[w->hdr.image_count];
- new_imd = &imd[w->hdr.image_count - 1];
- new_imd->metadata_lte = metadata_lte;
- new_imd->modified = true;
new_imd->root_dentry = root_dentry;
+ new_imd->metadata_lte = metadata_lte;
new_imd->security_data = sd;
+ new_imd->lgt = lgt;
+ new_imd->modified = true;
+
FREE(w->image_metadata);
w->image_metadata = imd;
+ w->hdr.image_count++;
/* Change the current image to the new one. */
return wimlib_select_image(w, w->hdr.image_count);
+out_free_security_data:
+ FREE(sd);
out_free_metadata_lte:
FREE(metadata_lte);
out_free_imd:
/* Cleaning up here on failure would be hard. For example, we could
- * fail to allocate memory in add_lookup_table_entry_to_dest_wim(),
+ * fail to allocate memory in add_lte_to_dest_wim(),
* leaving the lookup table entries in the destination WIM in an
* inconsistent state. Until these issues can be resolved,
* wimlib_export_image() is documented as leaving dest_wim is an
for_dentry_in_tree(root, increment_dentry_refcnt, NULL);
wims.src_wim = src_wim;
wims.dest_wim = dest_wim;
- ret = for_dentry_in_tree(root, add_lookup_table_entry_to_dest_wim, &wims);
+ ret = for_dentry_in_tree(root, add_lte_to_dest_wim, &wims);
if (ret != 0)
return ret;
ret = add_new_dentry_tree(dest_wim, root);
const char *flags_element, int flags)
{
struct dentry *root_dentry;
- struct stat root_stat;
struct image_metadata *imd;
int ret;
root_dentry = new_dentry("");
if (!root_dentry)
return WIMLIB_ERR_NOMEM;
- ret = calculate_dentry_full_path(root_dentry, NULL);
-
- if (ret != 0)
- goto out_free_dentry_tree;
-
- root_dentry->attributes |= FILE_ATTRIBUTE_DIRECTORY;
DEBUG("Building dentry tree.");
ret = build_dentry_tree(root_dentry, dir, w->lookup_table,
goto out_free_dentry_tree;
}
- DEBUG("Recalculating full paths of dentries.");
+ DEBUG("Calculating full paths of dentries.");
ret = for_dentry_in_tree(root_dentry, calculate_dentry_full_path, NULL);
if (ret != 0)
goto out_free_dentry_tree;
if (ret != 0)
goto out_free_dentry_tree;
+ DEBUG("Inserting dentries into hard link group table");
+ ret = for_dentry_in_tree(root_dentry, link_group_table_insert,
+ w->image_metadata[w->hdr.image_count - 1].lgt);
+ if (ret != 0)
+ goto out_destroy_imd;
+ DEBUG("Assigning hard link groups");
+ assign_link_groups(w->image_metadata[w->hdr.image_count - 1].lgt);
+
if (flags & WIMLIB_ADD_IMAGE_FLAG_BOOT)
wimlib_set_boot_idx(w, w->hdr.image_count);
out_destroy_imd:
destroy_image_metadata(&w->image_metadata[w->hdr.image_count - 1],
w->lookup_table);
+ w->hdr.image_count--;
return ret;
out_free_dentry_tree:
- free_dentry_tree(root_dentry, w->lookup_table, true);
+ free_dentry_tree(root_dentry, w->lookup_table);
return ret;
}
git://wimlib.net / wimlib / blobdiff