TCP_TW_SYN 2000 net/ipv4/tcp_ipv4.c case TCP_TW_SYN: { TCP_TW_SYN 226 net/ipv4/tcp_minisocks.c return TCP_TW_SYN; TCP_TW_SYN 1663 net/ipv6/tcp_ipv6.c case TCP_TW_SYN: