1// SPDX-License-Identifier: GPL-2.0 2 3--mss=1000 4 5`./defaults.sh` 6 7// Initialize connection 8 0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3 9 +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0 10 +0 bind(3, ..., ...) = 0 11 +0 listen(3, 1) = 0 12 13 +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop> 14 +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK> 15 +.1 < . 1:1(0) ack 1 win 32792 16 17 18 +0 accept(3, ..., ...) = 4 19 +0 < . 1:1001(1000) ack 1 win 32792 20 +0 > . 1:1(0) ack 1001 21 +0 read(4, ..., 1000) = 1000 22 23// resend the payload + a FIN 24 +0 < F. 1:1001(1000) ack 1 win 32792 25// Why do we have a delay and no dsack ? 26 +0~+.04 > . 1:1(0) ack 1002 27 28 +0 close(4) = 0 29 30// According to RFC 2525, section 2.17 31// we should _not_ send an RST here, because there was no data to consume. 32 +0 > F. 1:1(0) ack 1002 33