PFTM_ICMP_FIRST_PACKET
pf->timeout[PFTM_ICMP_FIRST_PACKET] = PFTM_ICMP_FIRST_PACKET_VAL;
{ "icmp.first", PFTM_ICMP_FIRST_PACKET },
s->timeout = PFTM_ICMP_FIRST_PACKET;
timeout[PFTM_ICMP_FIRST_PACKET] = PFTM_ICMP_FIRST_PACKET_VAL;