1// SPDX-License-Identifier: GPL-2.0 2// Test that we send FIN packet with correct TSval 3--tcp_ts_tick_usecs=1000 4--tolerance_usecs=7000 5 6`./defaults.sh` 7 8// Create a socket. 9 0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3 10 +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0 11 12 +0 bind(3, ..., ...) = 0 13 +0 listen(3, 1) = 0 14 15// Establish a connection. 16 +0 < S 0:0(0) win 20000 <mss 1000,sackOK,TS val 100 ecr 0> 17 +0 > S. 0:0(0) ack 1 <mss 1460,sackOK,TS val 100 ecr 100> 18 +.1 < . 1:1(0) ack 1 win 20000 <nop,nop,TS val 200 ecr 100> 19 +0 accept(3, ..., ...) = 4 20 21 +1 close(4) = 0 22// Check that FIN TSval is updated properly, one second has passed since last sent packet. 23 +0 > F. 1:1(0) ack 1 <nop,nop,TS val 1200 ecr 200> 24