Symbol: TH_ECNALL
sys/netpfil/ipfilter/netinet/ip_state.c
1567
if ((tcp_get_flags(tcp) & ~(TH_FIN|TH_ACK|TH_ECNALL)) ==
sys/netpfil/ipfilter/netinet/ip_state.c
2017
flags = tcp_get_flags(tcp) & ~(TH_FIN|TH_ECNALL);