PFTM_TCP_FIRST_PACKET
pf->timeout[PFTM_TCP_FIRST_PACKET] = PFTM_TCP_FIRST_PACKET_VAL;
{ "tcp.first", PFTM_TCP_FIRST_PACKET },
s->timeout = PFTM_TCP_FIRST_PACKET;
timeout[PFTM_TCP_FIRST_PACKET] = PFTM_TCP_FIRST_PACKET_VAL;