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// SPDX-License-Identifier: GPL-2.0
`./defaults.sh
./set_sysctls.py /proc/sys/net/ipv4/tcp_timestamps=0`
0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
+0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+0 bind(3, ..., ...) = 0
+0 listen(3, 1) = 0
+0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0
+0 < S 0:10(10) win 32792 <mss 1460,nop,nop,sackOK,nop,nop,FO TFO_COOKIE>
+0 > S. 0:0(0) ack 11 win 65535 <mss 1460,nop,nop,sackOK>
// sk->sk_state is TCP_SYN_RECV
+0 accept(3, ..., ...) = 4
+0 %{ assert tcpi_state == TCP_SYN_RECV, tcpi_state }%
// tcp_disconnect() sets sk->sk_state to TCP_CLOSE
+0 connect(4, AF_UNSPEC, ...) = 0
+0 > R. 1:1(0) ack 11 win 65535
+0 %{ assert tcpi_state == TCP_CLOSE, tcpi_state }%
// connect() sets sk->sk_state to TCP_SYN_SENT
+0 fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0
+0 connect(4, ..., ...) = -1 EINPROGRESS (Operation is now in progress)
+0 > S 0:0(0) win 65535 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+0 %{ assert tcpi_state == TCP_SYN_SENT, tcpi_state }%
// tp->fastopen_rsk must be NULL
+1 > S 0:0(0) win 65535 <mss 1460,nop,nop,sackOK,nop,wscale 8>
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