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if_ovpn tests: test large packets in IPv6 tunnel

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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
This commit is contained in:
Kristof Provost 2024-03-21 08:38:45 +01:00
parent 594c5fa109
commit e08b44339b
1 changed files with 18 additions and 0 deletions
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18
tests/sys/net/if_ovpn/if_ovpn.sh
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@ -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()