tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0
2// Test that we send RST packet with correct TSval
3--tcp_ts_tick_usecs=1000
4
5`./defaults.sh`
6
7// Create a socket.
8 0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
9 +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
10
11 +0 bind(3, ..., ...) = 0
12 +0 listen(3, 1) = 0
13
14// Establish a connection.
15 +0 < S 0:0(0) win 20000 <mss 1000,sackOK,TS val 100 ecr 0>
16 +0 > S. 0:0(0) ack 1 <mss 1460,sackOK,TS val 100 ecr 100>
17 +.1 < . 1:1(0) ack 1 win 20000 <nop,nop,TS val 200 ecr 100>
18 +0 accept(3, ..., ...) = 4
19
20 +0 < . 1:1001(1000) ack 1 win 20000 <nop,nop,TS val 201 ecr 100>
21 +0 > . 1:1(0) ack 1001 <nop,nop,TS val 200 ecr 201>
22
23 +1 close(4) = 0
24// Check that RST TSval is updated properly, one second has passed since last sent packet.
25 +0 > R. 1:1(0) ack 1001 <nop,nop,TS val 1200 ecr 201>