CAP_TLV_DYNAMIC_SIZE
size = LDP_HDR_SIZE + LDP_MSG_SIZE + CAP_TLV_DYNAMIC_SIZE;
return (ibuf_add(buf, &cap, CAP_TLV_DYNAMIC_SIZE));
CAP_TLV_DYNAMIC_SIZE + CAP_TLV_TWCARD_SIZE + CAP_TLV_UNOTIF_SIZE;