PF_STATE_SYNPROXY
TH_SYN && r->keep_state == PF_STATE_SYNPROXY) {
$$.action = PF_STATE_SYNPROXY;
r->keep_state == PF_STATE_SYNPROXY)) {
keep_state == PF_STATE_SYNPROXY) &&
else if (r->keep_state == PF_STATE_SYNPROXY)