From e08b44339b65a6aa7df4a58d0b1f471ba16da410 Mon Sep 17 00:00:00 2001 From: Kristof Provost Date: Thu, 21 Mar 2024 08:38:45 +0100 Subject: [PATCH] if_ovpn tests: test large packets in IPv6 tunnel There's a report of MTU issues over IPv6 DCO tunnels. Extend the 4in6 test to send a series of pings with different sizes, as well as transfer a large file. No issues were found, but we may as well extend the test case. PR: 276838 --- tests/sys/net/if_ovpn/if_ovpn.sh | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/tests/sys/net/if_ovpn/if_ovpn.sh b/tests/sys/net/if_ovpn/if_ovpn.sh index bbaffa0bce73..0ec2563cf355 100644 --- a/tests/sys/net/if_ovpn/if_ovpn.sh +++ b/tests/sys/net/if_ovpn/if_ovpn.sh @@ -308,10 +308,28 @@ atf_test_case "4in6" "cleanup" keepalive 100 600 " + dd if=/dev/random of=test.img bs=1024 count=1024 + cat test.img | jexec a nc -N -l 1234 & + # Give the tunnel time to come up sleep 10 atf_check -s exit:0 -o ignore jexec b ping -c 3 198.51.100.1 + + # MTU sweep + for i in `seq 1000 1500` + do + atf_check -s exit:0 -o ignore jexec b \ + ping -c 1 -s $i 198.51.100.1 + done + + rcvmd5=$(jexec b nc -N -w 3 198.51.100.1 1234 | md5) + md5=$(md5 test.img) + + if [ $md5 != $rcvmd5 ]; + then + atf_fail "Transmit corruption!" + fi } 4in6_cleanup()