PFTM_UDP_SINGLE
pf->timeout[PFTM_UDP_SINGLE] = PFTM_UDP_SINGLE_VAL;
{ "udp.single", PFTM_UDP_SINGLE },
(*state)->timeout = PFTM_UDP_SINGLE;
timeout[PFTM_UDP_SINGLE] = PFTM_UDP_SINGLE_VAL;