When a client connects, SYN would be sent to guest only once. If the guest is not connected or ready at that time, the connection will be reset in 10s. These patches introduce the SYN retry mechanism using the similar backoff timeout as linux kernel. Also update the data retransmission timeout using the backoff timeout. Yumei Huang (4): tcp: Rename "retrans" to "retries" util: Introduce read_file() and read_file_integer() function tcp: Resend SYN for inbound connections tcp: Update data retransmission timeout tcp.c | 76 +++++++++++++++++++++++++++++++++++------------- tcp.h | 5 ++++ tcp_conn.h | 12 ++++---- util.c | 84 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ util.h | 10 +++++++ 5 files changed, 161 insertions(+), 26 deletions(-) -- 2.47.0