IP_CT_EXP_CHALLENGE_ACK 939 net/netfilter/nf_conntrack_proto_tcp.c ct->proto.tcp.last_flags &= ~IP_CT_EXP_CHALLENGE_ACK; IP_CT_EXP_CHALLENGE_ACK 981 net/netfilter/nf_conntrack_proto_tcp.c IP_CT_EXP_CHALLENGE_ACK; IP_CT_EXP_CHALLENGE_ACK 1018 net/netfilter/nf_conntrack_proto_tcp.c (ct->proto.tcp.last_flags & IP_CT_EXP_CHALLENGE_ACK)) { IP_CT_EXP_CHALLENGE_ACK 1020 net/netfilter/nf_conntrack_proto_tcp.c ct->proto.tcp.last_flags &= ~IP_CT_EXP_CHALLENGE_ACK;