1*be90c7b3SKuniyuki Iwashima// SPDX-License-Identifier: GPL-2.0 2*be90c7b3SKuniyuki Iwashima`./defaults.sh 3*be90c7b3SKuniyuki Iwashima ./set_sysctls.py /proc/sys/net/ipv4/tcp_timestamps=0` 4*be90c7b3SKuniyuki Iwashima 5*be90c7b3SKuniyuki Iwashima 0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3 6*be90c7b3SKuniyuki Iwashima +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0 7*be90c7b3SKuniyuki Iwashima +0 bind(3, ..., ...) = 0 8*be90c7b3SKuniyuki Iwashima +0 listen(3, 1) = 0 9*be90c7b3SKuniyuki Iwashima +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0 10*be90c7b3SKuniyuki Iwashima 11*be90c7b3SKuniyuki Iwashima +0 < S 0:10(10) win 32792 <mss 1460,nop,nop,sackOK,nop,nop,FO TFO_COOKIE> 12*be90c7b3SKuniyuki Iwashima +0 > S. 0:0(0) ack 11 win 65535 <mss 1460,nop,nop,sackOK> 13*be90c7b3SKuniyuki Iwashima 14*be90c7b3SKuniyuki Iwashima// sk->sk_state is TCP_SYN_RECV 15*be90c7b3SKuniyuki Iwashima +0 accept(3, ..., ...) = 4 16*be90c7b3SKuniyuki Iwashima +0 %{ assert tcpi_state == TCP_SYN_RECV, tcpi_state }% 17*be90c7b3SKuniyuki Iwashima 18*be90c7b3SKuniyuki Iwashima// tcp_disconnect() sets sk->sk_state to TCP_CLOSE 19*be90c7b3SKuniyuki Iwashima +0 connect(4, AF_UNSPEC, ...) = 0 20*be90c7b3SKuniyuki Iwashima +0 > R. 1:1(0) ack 11 win 65535 21*be90c7b3SKuniyuki Iwashima +0 %{ assert tcpi_state == TCP_CLOSE, tcpi_state }% 22*be90c7b3SKuniyuki Iwashima 23*be90c7b3SKuniyuki Iwashima// connect() sets sk->sk_state to TCP_SYN_SENT 24*be90c7b3SKuniyuki Iwashima +0 fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0 25*be90c7b3SKuniyuki Iwashima +0 connect(4, ..., ...) = -1 EINPROGRESS (Operation is now in progress) 26*be90c7b3SKuniyuki Iwashima +0 > S 0:0(0) win 65535 <mss 1460,nop,nop,sackOK,nop,wscale 8> 27*be90c7b3SKuniyuki Iwashima +0 %{ assert tcpi_state == TCP_SYN_SENT, tcpi_state }% 28*be90c7b3SKuniyuki Iwashima 29*be90c7b3SKuniyuki Iwashima// tp->fastopen_rsk must be NULL 30*be90c7b3SKuniyuki Iwashima +1 > S 0:0(0) win 65535 <mss 1460,nop,nop,sackOK,nop,wscale 8> 31