PFTM_UDP_FIRST_PACKET
pt.timeout = PFTM_UDP_FIRST_PACKET;
pf->timeout[PFTM_UDP_FIRST_PACKET] = PFTM_UDP_FIRST_PACKET_VAL;
{ "udp.first", PFTM_UDP_FIRST_PACKET },
st->timeout = PFTM_UDP_FIRST_PACKET;
timeout[PFTM_UDP_FIRST_PACKET] = PFTM_UDP_FIRST_PACKET_VAL;