ipsec_rx_decrypted_pkt_def_dest
old_dest = ipsec_rx_decrypted_pkt_def_dest(ttc, family);
new_dest = ipsec_rx_decrypted_pkt_def_dest(ttc, family);
*dest = ipsec_rx_decrypted_pkt_def_dest(attr->ttc, attr->family);