void destroy_image_metadata(struct image_metadata *imd,struct lookup_table *lt)
{
- if (lt)
- free_dentry_tree(imd->root_dentry, lt, true);
- else
- free_dentry_tree(imd->root_dentry, NULL, false);
+ free_dentry_tree(imd->root_dentry, lt);
free_security_data(imd->security_data);
free_link_group_table(imd->lgt);
* the regular files in the tree into the WIM as file resources.
*/
static int build_dentry_tree(struct dentry *root, const char *root_disk_path,
- struct lookup_table* lookup_table,
- int add_flags)
+ struct lookup_table *lookup_table,
+ struct wim_security_data *sd,
+ int add_flags,
+ void *extra_arg)
{
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)
else
stat_fn = lstat;
+ if (add_flags & WIMLIB_ADD_IMAGE_FLAG_VERBOSE)
+ printf("Scanning `%s'\n", root_disk_path);
+
ret = (*stat_fn)(root_disk_path, &root_stbuf);
if (ret != 0) {
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 */
if (!child)
return WIMLIB_ERR_NOMEM;
ret = build_dentry_tree(child, name, lookup_table,
- add_flags);
+ sd, add_flags, extra_arg);
link_dentry(child, root);
if (ret != 0)
break;
/* 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);
- ret = dentry_set_symlink(root, deref_name_buf, lookup_table);
+ 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;
-
- /* XXX ADS */
- src_table_entry = __lookup_resource(src_wim->lookup_table, dentry->hash);
- if (!src_table_entry)
- return 0;
-
- /* XXX ADS */
- dest_table_entry = __lookup_resource(dest_wim->lookup_table, dentry->hash);
- 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->resource_location = RESOURCE_IN_WIM;
+ 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;
}
* @w: The WIMStruct for the WIM file.
* @root_dentry: The root of the directory tree for the image.
*/
-static int add_new_dentry_tree(WIMStruct *w, struct dentry *root_dentry)
+static int add_new_dentry_tree(WIMStruct *w, struct dentry *root_dentry,
+ struct wim_security_data *sd)
{
struct lookup_table_entry *metadata_lte;
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",
metadata_lte = new_lookup_table_entry();
if (!metadata_lte)
goto out_free_imd;
- sd = CALLOC(1, sizeof(struct wim_security_data));
- if (!sd)
- goto out_free_metadata_lte;
- 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);
new_imd = &imd[w->hdr.image_count];
int ret;
struct dentry *root;
struct wim_pair wims;
+ struct wim_security_data *sd;
if (src_image == WIM_ALL_IMAGES) {
if (src_wim->hdr.image_count > 1) {
/* 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
* indeterminate state. */
root = wim_root_dentry(src_wim);
+ sd = wim_security_data(src_wim);
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);
+ ret = add_new_dentry_tree(dest_wim, root, sd);
if (ret != 0)
return ret;
- /* Bring over old security data */
- struct wim_security_data *sd = wim_security_data(src_wim);
- struct image_metadata *new_imd = wim_get_current_image_metadata(dest_wim);
- wimlib_assert(sd);
- free_security_data(new_imd->security_data);
- new_imd->security_data = sd;
sd->refcnt++;
if (flags & WIMLIB_EXPORT_FLAG_BOOT) {
return 0;
}
-/*
- * Adds an image to a WIM file from a directory tree on disk.
- */
-WIMLIBAPI int wimlib_add_image(WIMStruct *w, const char *dir,
- const char *name, const char *description,
- const char *flags_element, int flags)
+int do_add_image(WIMStruct *w, const char *dir, const char *name,
+ const char *description, const char *flags_element,
+ int flags,
+ int (*capture_tree)(struct dentry *, const char *,
+ struct lookup_table *,
+ struct wim_security_data *, int, void *),
+ void *extra_arg)
{
struct dentry *root_dentry;
struct image_metadata *imd;
+ struct wim_security_data *sd;
int ret;
DEBUG("Adding dentry tree from dir `%s'.", dir);
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;
+ sd = CALLOC(1, sizeof(struct wim_security_data));
+ if (!sd)
+ goto out_free_dentry_tree;
+ sd->total_length = 8;
+ sd->refcnt = 1;
DEBUG("Building dentry tree.");
- ret = build_dentry_tree(root_dentry, dir, w->lookup_table,
- flags | WIMLIB_ADD_IMAGE_FLAG_ROOT);
+ ret = (*capture_tree)(root_dentry, dir, w->lookup_table, sd,
+ flags | WIMLIB_ADD_IMAGE_FLAG_ROOT,
+ extra_arg);
if (ret != 0) {
ERROR("Failed to build dentry tree for `%s'", dir);
- goto out_free_dentry_tree;
+ goto out_free_sd;
}
- 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;
+ goto out_free_sd;
- ret = add_new_dentry_tree(w, root_dentry);
+ ret = add_new_dentry_tree(w, root_dentry, sd);
if (ret != 0)
- goto out_free_dentry_tree;
+ goto out_free_sd;
DEBUG("Inserting dentries into hard link group table");
ret = for_dentry_in_tree(root_dentry, link_group_table_insert,
w->lookup_table);
w->hdr.image_count--;
return ret;
+out_free_sd:
+ free_security_data(sd);
out_free_dentry_tree:
- free_dentry_tree(root_dentry, w->lookup_table, true);
+ free_dentry_tree(root_dentry, w->lookup_table);
return ret;
}
+
+/*
+ * Adds an image to a WIM file from a directory tree on disk.
+ */
+WIMLIBAPI int wimlib_add_image(WIMStruct *w, const char *dir,
+ const char *name, const char *description,
+ const char *flags_element, int flags)
+{
+ return do_add_image(w, dir, name, description, flags_element, flags,
+ build_dentry_tree, NULL);
+}
git://wimlib.net / wimlib / blobdiff