extern int blob_buf_init(struct blob_buf *buf, int id);
extern void blob_buf_free(struct blob_buf *buf);
extern struct blob_attr *blob_new(struct blob_buf *buf, int id, int payload);
extern int blob_buf_init(struct blob_buf *buf, int id);
extern void blob_buf_free(struct blob_buf *buf);
extern struct blob_attr *blob_new(struct blob_buf *buf, int id, int payload);