Exemplo n.º 1
0
/* Set attributes, security descriptor, and timestamps on the NTFS inode @ni.
 */
static int
ntfs_3g_set_metadata(ntfs_inode *ni, const struct wim_inode *inode,
		     const struct ntfs_3g_apply_ctx *ctx)
{
	int extract_flags;
	const struct wim_security_data *sd;
	struct wim_dentry *one_dentry;
	int ret;

	extract_flags = ctx->common.extract_flags;
	sd = wim_get_current_security_data(ctx->common.wim);
	one_dentry = inode_first_extraction_dentry(inode);

	/* Attributes  */
	if (!(extract_flags & WIMLIB_EXTRACT_FLAG_NO_ATTRIBUTES)) {
		u32 attrib = inode->i_attributes;

		attrib &= ~(FILE_ATTRIBUTE_SPARSE_FILE |
			    FILE_ATTRIBUTE_ENCRYPTED);

		if (ntfs_set_ntfs_attrib(ni, (const char *)&attrib,
					 sizeof(attrib), 0))
		{
			ERROR_WITH_ERRNO("Failed to set attributes on \"%s\" "
					 "in NTFS volume",
					 dentry_full_path(one_dentry));
			return WIMLIB_ERR_SET_ATTRIBUTES;
		}
	}

	/* Security descriptor  */
	if ((inode->i_security_id >= 0)
	    && !(extract_flags & WIMLIB_EXTRACT_FLAG_NO_ACLS))
	{
		const void *desc;
		size_t desc_size;

		desc = sd->descriptors[inode->i_security_id];
		desc_size = sd->sizes[inode->i_security_id];

		ret = ntfs_3g_set_security_descriptor(ni, desc, desc_size);
		if (ret) {
			if (wimlib_print_errors) {
				ERROR_WITH_ERRNO("Failed to set security descriptor "
						 "on \"%s\" in NTFS volume",
						 dentry_full_path(one_dentry));
				fprintf(wimlib_error_file,
					"The security descriptor is: ");
				print_byte_field(desc, desc_size, wimlib_error_file);
				fprintf(wimlib_error_file, "\n");
			}
			return ret;
		}
	}

	/* Timestamps  */
	ret = ntfs_3g_set_timestamps(ni, inode);
	if (ret) {
		ERROR_WITH_ERRNO("Failed to set timestamps on \"%s\" "
				 "in NTFS volume",
				 dentry_full_path(one_dentry));
		return ret;
	}
	return 0;
}
Exemplo n.º 2
0
static int
init_wimlib_dentry(struct wimlib_dir_entry *wdentry, struct wim_dentry *dentry,
		   WIMStruct *wim, int flags)
{
	int ret;
	size_t dummy;
	const struct wim_inode *inode = dentry->d_inode;
	const struct wim_inode_stream *strm;
	struct wimlib_unix_data unix_data;
	const void *object_id;
	u32 object_id_len;

	ret = utf16le_get_tstr(dentry->d_name, dentry->d_name_nbytes,
			       &wdentry->filename, &dummy);
	if (ret)
		return ret;

	ret = utf16le_get_tstr(dentry->d_short_name, dentry->d_short_name_nbytes,
			       &wdentry->dos_name, &dummy);
	if (ret)
		return ret;

	ret = calculate_dentry_full_path(dentry);
	if (ret)
		return ret;
	wdentry->full_path = dentry->d_full_path;

	for (struct wim_dentry *d = dentry; !dentry_is_root(d); d = d->d_parent)
		wdentry->depth++;

	if (inode_has_security_descriptor(inode)) {
		struct wim_security_data *sd;

		sd = wim_get_current_security_data(wim);
		wdentry->security_descriptor = sd->descriptors[inode->i_security_id];
		wdentry->security_descriptor_size = sd->sizes[inode->i_security_id];
	}
	wdentry->reparse_tag = inode->i_reparse_tag;
	wdentry->num_links = inode->i_nlink;
	wdentry->attributes = inode->i_attributes;
	wdentry->hard_link_group_id = inode->i_ino;
	wdentry->creation_time = wim_timestamp_to_timespec(inode->i_creation_time);
	wdentry->last_write_time = wim_timestamp_to_timespec(inode->i_last_write_time);
	wdentry->last_access_time = wim_timestamp_to_timespec(inode->i_last_access_time);
	if (inode_get_unix_data(inode, &unix_data)) {
		wdentry->unix_uid = unix_data.uid;
		wdentry->unix_gid = unix_data.gid;
		wdentry->unix_mode = unix_data.mode;
		wdentry->unix_rdev = unix_data.rdev;
	}
	object_id = inode_get_object_id(inode, &object_id_len);
	if (unlikely(object_id != NULL)) {
		memcpy(&wdentry->object_id, object_id,
		       min(object_id_len, sizeof(wdentry->object_id)));
	}

	strm = inode_get_unnamed_stream(inode, get_default_stream_type(inode));
	if (strm) {
		ret = stream_to_wimlib_stream_entry(inode, strm,
						    &wdentry->streams[0],
						    wim->blob_table, flags);
		if (ret)
			return ret;
	}

	for (unsigned i = 0; i < inode->i_num_streams; i++) {

		strm = &inode->i_streams[i];

		if (!stream_is_named_data_stream(strm))
			continue;

		wdentry->num_named_streams++;

		ret = stream_to_wimlib_stream_entry(inode, strm,
						    &wdentry->streams[
							wdentry->num_named_streams],
						    wim->blob_table, flags);
		if (ret)
			return ret;
	}
	return 0;
}
Exemplo n.º 3
0
static int
execute_update_commands(WIMStruct *wim,
			const struct wimlib_update_command *cmds,
			size_t num_cmds,
			int update_flags)
{
	struct wim_inode_table *inode_table;
	struct wim_sd_set *sd_set;
	struct list_head unhashed_streams;
	struct update_command_journal *j;
	union wimlib_progress_info info;
	int ret;

	if (have_command_type(cmds, num_cmds, WIMLIB_UPDATE_OP_ADD)) {
		/* If we have at least one "add" command, create the inode and
		 * security descriptor tables to index new inodes and new
		 * security descriptors, respectively.  */
		inode_table = alloca(sizeof(struct wim_inode_table));
		sd_set = alloca(sizeof(struct wim_sd_set));

		ret = init_inode_table(inode_table, 9001);
		if (ret)
			goto out;

		ret = init_sd_set(sd_set, wim_get_current_security_data(wim));
		if (ret)
			goto out_destroy_inode_table;

		INIT_LIST_HEAD(&unhashed_streams);
	} else {
		inode_table = NULL;
		sd_set = NULL;
	}

	/* Start an in-memory journal to allow rollback if something goes wrong
	 */
	j = new_update_command_journal(num_cmds,
				       &wim_get_current_image_metadata(wim)->root_dentry,
				       wim->lookup_table);
	if (!j) {
		ret = WIMLIB_ERR_NOMEM;
		goto out_destroy_sd_set;
	}

	info.update.completed_commands = 0;
	info.update.total_commands = num_cmds;
	ret = 0;
	for (size_t i = 0; i < num_cmds; i++) {
		DEBUG("Executing update command %zu of %zu (op=%"TS")",
		      i + 1, num_cmds, update_op_to_str(cmds[i].op));
		info.update.command = &cmds[i];
		if (update_flags & WIMLIB_UPDATE_FLAG_SEND_PROGRESS) {
			ret = call_progress(wim->progfunc,
					    WIMLIB_PROGRESS_MSG_UPDATE_BEGIN_COMMAND,
					    &info, wim->progctx);
			if (ret)
				goto rollback;
		}

		switch (cmds[i].op) {
		case WIMLIB_UPDATE_OP_ADD:
			ret = execute_add_command(j, wim, &cmds[i], inode_table,
						  sd_set, &unhashed_streams);
			break;
		case WIMLIB_UPDATE_OP_DELETE:
			ret = execute_delete_command(j, wim, &cmds[i]);
			break;
		case WIMLIB_UPDATE_OP_RENAME:
			ret = execute_rename_command(j, wim, &cmds[i]);
			break;
		}
		if (unlikely(ret))
			goto rollback;
		info.update.completed_commands++;
		if (update_flags & WIMLIB_UPDATE_FLAG_SEND_PROGRESS) {
			ret = call_progress(wim->progfunc,
					    WIMLIB_PROGRESS_MSG_UPDATE_END_COMMAND,
					    &info, wim->progctx);
			if (ret)
				goto rollback;
		}
		next_command(j);
	}

	commit_update(j);
	if (inode_table) {
		struct wim_image_metadata *imd;

		imd = wim_get_current_image_metadata(wim);

		list_splice_tail(&unhashed_streams, &imd->unhashed_streams);
		inode_table_prepare_inode_list(inode_table, &imd->inode_list);
	}
	goto out_destroy_sd_set;

rollback:
	if (sd_set)
		rollback_new_security_descriptors(sd_set);
	rollback_update(j);
out_destroy_sd_set:
	if (sd_set)
		destroy_sd_set(sd_set);
out_destroy_inode_table:
	if (inode_table)
		destroy_inode_table(inode_table);
out:
	return ret;
}