Exemplo n.º 1
0
/* API function documented in wimlib.h  */
WIMLIBAPI int
wimlib_add_empty_image(WIMStruct *wim, const tchar *name, int *new_idx_ret)
{
	int ret;

	ret = can_modify_wim(wim);
	if (ret)
		return ret;

	if (!name)
		name = T("");

	if (wimlib_image_name_in_use(wim, name)) {
		ERROR("There is already an image named \"%"TS"\" in the WIM!",
		      name);
		return WIMLIB_ERR_IMAGE_NAME_COLLISION;
	}

	ret = add_empty_image_metadata(wim);
	if (ret)
		return ret;

	ret = xml_add_image(wim, name);
	if (ret) {
		put_image_metadata(wim->image_metadata[--wim->hdr.image_count],
				   NULL);
		return ret;
	}

	if (new_idx_ret)
		*new_idx_ret = wim->hdr.image_count;
	return 0;
}
Exemplo n.º 2
0
/* API function documented in wimlib.h  */
WIMLIBAPI int
wimlib_export_image(WIMStruct *src_wim,
		    int src_image,
		    WIMStruct *dest_wim,
		    const tchar *dest_name,
		    const tchar *dest_description,
		    int export_flags)
{
	int ret;
	int start_src_image;
	int end_src_image;
	int orig_dest_image_count;
	int image;
	bool all_images = (src_image == WIMLIB_ALL_IMAGES);

	/* Check for sane parameters.  */
	if (export_flags & ~(WIMLIB_EXPORT_FLAG_BOOT |
			     WIMLIB_EXPORT_FLAG_NO_NAMES |
			     WIMLIB_EXPORT_FLAG_NO_DESCRIPTIONS |
			     WIMLIB_EXPORT_FLAG_GIFT |
			     WIMLIB_EXPORT_FLAG_WIMBOOT))
		return WIMLIB_ERR_INVALID_PARAM;

	if (src_wim == NULL || dest_wim == NULL)
		return WIMLIB_ERR_INVALID_PARAM;

	if (!wim_has_metadata(src_wim) || !wim_has_metadata(dest_wim))
		return WIMLIB_ERR_METADATA_NOT_FOUND;

	if (all_images) {
		/* Multi-image export.  */
		if ((!(export_flags & WIMLIB_EXPORT_FLAG_NO_NAMES) &&
			dest_name) ||
		    (!(export_flags & WIMLIB_EXPORT_FLAG_NO_DESCRIPTIONS) &&
			dest_description))
		{
			ERROR("Image name and description must be "
			      "left NULL for multi-image export");
			return WIMLIB_ERR_INVALID_PARAM;
		}
		start_src_image = 1;
		end_src_image = src_wim->hdr.image_count;
	} else {
		start_src_image = src_image;
		end_src_image = src_image;
	}
	orig_dest_image_count = dest_wim->hdr.image_count;

	/* Stream checksums must be known before proceeding.  */
	ret = wim_checksum_unhashed_streams(src_wim);
	if (ret)
		return ret;
	ret = wim_checksum_unhashed_streams(dest_wim);
	if (ret)
		return ret;

	/* Enable rollbacks  */
	for_lookup_table_entry(dest_wim->lookup_table, lte_set_not_exported, NULL);

	/* Export each requested image.  */
	for (src_image = start_src_image;
	     src_image <= end_src_image;
	     src_image++)
	{
		const tchar *next_dest_name, *next_dest_description;
		struct wim_image_metadata *src_imd;
		struct wim_inode *inode;

		/* Determine destination image name and description.  */

		if (export_flags & WIMLIB_EXPORT_FLAG_NO_NAMES)
			next_dest_name = T("");
		else if (dest_name)
			next_dest_name = dest_name;
		else
			next_dest_name = wimlib_get_image_name(src_wim, src_image);

		if (export_flags & WIMLIB_EXPORT_FLAG_NO_DESCRIPTIONS)
			next_dest_description = T("");
		else if (dest_description)
			next_dest_description = dest_description;
		else
			next_dest_description = wimlib_get_image_description(src_wim, src_image);

		/* Check for name conflict.  */
		if (wimlib_image_name_in_use(dest_wim, next_dest_name)) {
			ERROR("There is already an image named \"%"TS"\" "
			      "in the destination WIM", next_dest_name);
			ret = WIMLIB_ERR_IMAGE_NAME_COLLISION;
			goto out_rollback;
		}

		/* Load metadata for source image into memory.  */
		ret = select_wim_image(src_wim, src_image);
		if (ret)
			goto out_rollback;

		src_imd = wim_get_current_image_metadata(src_wim);

		/* Iterate through inodes in the source image and export their
		 * streams into the destination WIM.  */
		image_for_each_inode(inode, src_imd) {
			ret = inode_export_streams(inode,
						   src_wim->lookup_table,
						   dest_wim->lookup_table,
						   export_flags & WIMLIB_EXPORT_FLAG_GIFT);
			if (ret)
				goto out_rollback;
		}

		/* Export XML information into the destination WIM.  */
		ret = xml_export_image(src_wim->wim_info, src_image,
				       &dest_wim->wim_info, next_dest_name,
				       next_dest_description);
		if (ret)
			goto out_rollback;

		/* Reference the source image metadata from the destination WIM.
		 */
		ret = append_image_metadata(dest_wim, src_imd);
		if (ret)
			goto out_rollback;
		src_imd->refcnt++;

		/* Lock the metadata into memory.  XXX: need better solution for
		 * this.  */
		src_imd->modified = 1;

	}
Exemplo n.º 3
0
/* API function documented in wimlib.h  */
WIMLIBAPI int
wimlib_export_image(WIMStruct *src_wim,
		    int src_image,
		    WIMStruct *dest_wim,
		    const tchar *dest_name,
		    const tchar *dest_description,
		    int export_flags)
{
	int ret;
	int start_src_image;
	int end_src_image;
	int orig_dest_image_count;
	int image;
	bool all_images = (src_image == WIMLIB_ALL_IMAGES);

	/* Check for sane parameters.  */
	if (export_flags & ~(WIMLIB_EXPORT_FLAG_BOOT |
			     WIMLIB_EXPORT_FLAG_NO_NAMES |
			     WIMLIB_EXPORT_FLAG_NO_DESCRIPTIONS |
			     WIMLIB_EXPORT_FLAG_GIFT |
			     WIMLIB_EXPORT_FLAG_WIMBOOT))
		return WIMLIB_ERR_INVALID_PARAM;

	if (!src_wim || !dest_wim)
		return WIMLIB_ERR_INVALID_PARAM;

	if (!wim_has_metadata(src_wim) || !wim_has_metadata(dest_wim))
		return WIMLIB_ERR_METADATA_NOT_FOUND;

	if (all_images) {
		/* Multi-image export.  */
		if ((!(export_flags & WIMLIB_EXPORT_FLAG_NO_NAMES) &&
			dest_name) ||
		    (!(export_flags & WIMLIB_EXPORT_FLAG_NO_DESCRIPTIONS) &&
			dest_description))
		{
			ERROR("Image name and description must be "
			      "left NULL for multi-image export");
			return WIMLIB_ERR_INVALID_PARAM;
		}
		start_src_image = 1;
		end_src_image = src_wim->hdr.image_count;
	} else {
		start_src_image = src_image;
		end_src_image = src_image;
	}
	orig_dest_image_count = dest_wim->hdr.image_count;

	/* We don't yet support having a single WIMStruct contain duplicate
	 * 'image_metadata' structures, so we must forbid this from happening.
	 * A duplication is possible if 'src_wim == dest_wim', if the same image
	 * is exported to the same destination WIMStruct multiple times, or if
	 * an image is exported in an A => B => A manner.  */
	for (src_image = start_src_image;
	     src_image <= end_src_image; src_image++)
	{
		const struct wim_image_metadata *src_imd =
				src_wim->image_metadata[src_image - 1];
		for (int i = 0; i < dest_wim->hdr.image_count; i++)
			if (dest_wim->image_metadata[i] == src_imd)
				return WIMLIB_ERR_DUPLICATE_EXPORTED_IMAGE;
	}

	/* Blob checksums must be known before proceeding.  */
	ret = wim_checksum_unhashed_blobs(src_wim);
	if (ret)
		return ret;
	ret = wim_checksum_unhashed_blobs(dest_wim);
	if (ret)
		return ret;

	/* Enable rollbacks  */
	for_blob_in_table(dest_wim->blob_table, blob_set_not_exported, NULL);

	/* Export each requested image.  */
	for (src_image = start_src_image;
	     src_image <= end_src_image;
	     src_image++)
	{
		const tchar *next_dest_name, *next_dest_description;
		struct wim_image_metadata *src_imd;
		struct wim_inode *inode;

		/* Determine destination image name and description.  */

		if (export_flags & WIMLIB_EXPORT_FLAG_NO_NAMES)
			next_dest_name = NULL;
		else if (dest_name)
			next_dest_name = dest_name;
		else
			next_dest_name = wimlib_get_image_name(src_wim, src_image);

		if (export_flags & WIMLIB_EXPORT_FLAG_NO_DESCRIPTIONS)
			next_dest_description = NULL;
		else if (dest_description)
			next_dest_description = dest_description;
		else
			next_dest_description = wimlib_get_image_description(src_wim, src_image);

		/* Check for name conflict.  */
		if (wimlib_image_name_in_use(dest_wim, next_dest_name)) {
			ERROR("There is already an image named \"%"TS"\" "
			      "in the destination WIM", next_dest_name);
			ret = WIMLIB_ERR_IMAGE_NAME_COLLISION;
			goto out_rollback;
		}

		/* Load metadata for source image into memory.  */
		ret = select_wim_image(src_wim, src_image);
		if (ret)
			goto out_rollback;

		src_imd = wim_get_current_image_metadata(src_wim);

		/* Iterate through inodes in the source image and export their
		 * blobs into the destination WIM.  */
		image_for_each_inode(inode, src_imd) {
			ret = inode_export_blobs(inode,
						 src_wim->blob_table,
						 dest_wim->blob_table,
						 export_flags & WIMLIB_EXPORT_FLAG_GIFT);
			if (ret)
				goto out_rollback;
		}

		/* Export XML information into the destination WIM.  */
		ret = xml_export_image(src_wim->xml_info, src_image,
				       dest_wim->xml_info, next_dest_name,
				       next_dest_description,
				       export_flags & WIMLIB_EXPORT_FLAG_WIMBOOT);
		if (ret)
			goto out_rollback;

		/* Reference the source image metadata from the destination WIM.
		 */
		ret = append_image_metadata(dest_wim, src_imd);
		if (ret)
			goto out_rollback;
		src_imd->refcnt++;
	}