1// SPDX-License-Identifier: GPL-2.0 2// 3// Basic TFO server test 4// 5// Test TFO_SERVER_WO_SOCKOPT1 without setsockopt(TCP_FASTOPEN) 6 7`./defaults.sh 8 ./set_sysctls.py /proc/sys/net/ipv4/tcp_fastopen=0x402` 9 10 0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3 11 +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0 12 +0 bind(3, ..., ...) = 0 13 +0 listen(3, 1) = 0 14 15 +0 < S 0:10(10) win 32792 <mss 1460,sackOK,nop,nop,FO TFO_COOKIE,nop,nop> 16 +0 > S. 0:0(0) ack 11 <mss 1460,nop,nop,sackOK> 17 18 +0 accept(3, ..., ...) = 4 19 +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) != 0, tcpi_options }% 20 21 +0 read(4, ..., 512) = 10 22