| // 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> |
