V_pfil_member
if (V_pfil_bridge == 0 && V_pfil_member == 0 && V_pfil_ipfw == 0)
if (V_pfil_member && ifp != NULL) {
if (V_pfil_member && ifp != NULL && dir == PFIL_OUT) {
if (V_pfil_member && ifp != NULL) {
V_pfil_member = 0;