struct wim_dentry *root;
const struct wim_lookup_table_entry *metadata_lte;
u64 metadata_len;
+ u8 hash[SHA1_HASH_SIZE];
struct wim_security_data *security_data;
+ struct wim_inode *inode;
metadata_lte = imd->metadata_lte;
metadata_len = wim_resource_size(metadata_lte);
if (ret)
goto out_free_buf;
+ sha1_buffer(buf, metadata_len, hash);
+ if (!hashes_equal(metadata_lte->hash, hash)) {
+ ERROR("Metadata resource is corrupted (invalid SHA-1 message digest)!");
+ ret = WIMLIB_ERR_INVALID_RESOURCE_HASH;
+ goto out_free_buf;
+ }
+
DEBUG("Finished reading metadata resource into memory.");
/* The root directory entry starts after security data, aligned on an
security_data->total_length, root);
if (ret == 0 && root->length == 0) {
- ERROR("Metadata resource cannot begin with end-of-directory entry!");
- ret = WIMLIB_ERR_INVALID_DENTRY;
+ WARNING("Metadata resource begins with end-of-directory entry "
+ "(treating as empty image)");
+ FREE(root);
+ root = NULL;
+ goto out_success;
}
if (ret) {
goto out_free_security_data;
}
+ if (dentry_has_long_name(root) || dentry_has_short_name(root)) {
+ WARNING("The root directory has a nonempty name (removing it)");
+ FREE(root->file_name);
+ FREE(root->short_name);
+ root->file_name = NULL;
+ root->short_name = NULL;
+ root->file_name_nbytes = 0;
+ root->short_name_nbytes = 0;
+ }
+
/* This is the root dentry, so set its parent to itself. */
root->parent = root;
if (ret)
goto out_free_dentry_tree;
- if (!wim->all_images_verified) {
- DEBUG("Running miscellaneous verifications on the dentry tree");
- for_lookup_table_entry(wim->lookup_table, lte_zero_real_refcnt, NULL);
- ret = for_dentry_in_tree(root, verify_dentry, wim);
+
+ DEBUG("Running miscellaneous verifications on the dentry tree");
+ image_for_each_inode(inode, imd) {
+ ret = verify_inode(inode, security_data);
if (ret)
goto out_free_dentry_tree;
}
-
DEBUG("Done reading image metadata");
-
+out_success:
imd->root_dentry = root;
imd->security_data = security_data;
INIT_LIST_HEAD(&imd->unhashed_streams);
+ ret = 0;
goto out_free_buf;
out_free_dentry_tree:
free_dentry_tree(root, wim->lookup_table);