cdnr_block
LIST_ENTRY(cdnr_block) cb_next;
struct tc_action *(*cb_input)(struct cdnr_block *,
struct cdnr_block tc_block;
LIST_HEAD(, cdnr_block) tc_elements;
struct cdnr_block cdnrblk; /* conditioner block */
struct cdnr_block cdnrblk; /* conditioner block */
struct cdnr_block cdnrblk; /* conditioner block */
struct cdnr_block;
struct cdnr_block *un_next; /* next tc element block */