syn_stamp 5858 net/ipv4/tcp_input.c u32 syn_stamp; syn_stamp 5864 net/ipv4/tcp_input.c syn_stamp = tp->retrans_stamp; syn_stamp 5865 net/ipv4/tcp_input.c if (tp->undo_marker && syn_stamp && tp->rx_opt.saw_tstamp && syn_stamp 5866 net/ipv4/tcp_input.c syn_stamp == tp->rx_opt.rcv_tsecr)