The branch main has been updated by kp:
URL:
https://cgit.FreeBSD.org/src/commit/?id=cd46399b9ccf04f6ec00a532e52c8b1edb007af7
commit cd46399b9ccf04f6ec00a532e52c8b1edb007af7
Author: Kristof Provost <k...@freebsd.org>
AuthorDate: 2021-08-26 08:25:57 +0000
Commit: Kristof Provost <k...@freebsd.org>
CommitDate: 2021-08-26 09:23:39 +0000
pf tests: ALTQ priority test
Test that ALTQ can prioritise one type of traffic over another. Do this
by establishing a slow link and saturating it with ICMP echos.
When prioritised TCP connections reliably go through. When not
prioritised TCP connections reliably fail.
MFC after: 1 week
Sponsored by: Rubicon Communications, LLC ("Netgate")
---
tests/sys/netpfil/pf/altq.sh | 94 +++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 93 insertions(+), 1 deletion(-)
diff --git a/tests/sys/netpfil/pf/altq.sh b/tests/sys/netpfil/pf/altq.sh
index 53cf10e47565..ebb28f34c22e 100644
--- a/tests/sys/netpfil/pf/altq.sh
+++ b/tests/sys/netpfil/pf/altq.sh
@@ -145,10 +145,102 @@ cbq_vlan_cleanup()
altq_cleanup
}
+atf_test_case "prioritise" "cleanup"
+prioritise_head()
+{
+ atf_set descr "Test prioritising one type of traffic over the other"
+ atf_set require.user root
+}
+
+prioritise_body()
+{
+ altq_init
+ is_altq_supported cbq
+
+ epair=$(vnet_mkepair)
+ vnet_mkjail altq_prioritise ${epair}b
+
+ ifconfig ${epair}a 192.0.2.1/24 up
+ jexec altq_prioritise ifconfig ${epair}b 192.0.2.2/24 up
+
+ jexec altq_prioritise /usr/sbin/inetd -p inetd-altq.pid \
+ $(atf_get_srcdir)/../pf/echo_inetd.conf
+
+ # Sanity check
+ atf_check -s exit:0 -o ignore ping -i .1 -c 3 -s 1200 192.0.2.2
+
+ jexec altq_prioritise pfctl -e
+ pft_set_rules altq_prioritise \
+ "altq on ${epair}b bandwidth 6000b cbq queue { default, slow }"
\
+ "queue default priority 7 cbq(default)" \
+ "queue slow priority 1 cbq" \
+ "match proto icmp queue slow" \
+ "match proto tcp queue default" \
+ "pass"
+
+ # single ping succeeds just fine
+ atf_check -s exit:0 -o ignore ping -c 1 192.0.2.2
+
+ # Unsaturated TCP succeeds
+ reply=$(echo "foo" | nc -w 5 -N 192.0.2.2 7)
+ if [ "$reply" != "foo" ];
+ then
+ atf_fail "Unsaturated echo failed"
+ fi
+
+ # "Saturate the link"
+ ping -i .01 -c 50 -s 1200 192.0.2.2
+
+ # We should now be hitting the limits and get these packet dropped.
+ rcv=$(ping -i .1 -c 5 -s 1200 192.0.2.2 | tr "," "\n" | awk '/packets
received/ { print $1; }')
+ echo "Received $rcv packets"
+ if [ ${rcv} -gt 1 ]
+ then
+ atf_fail "Received ${rcv} packets in a saturated link"
+ fi
+
+ # TCP should still pass
+ for i in `seq 1 10`
+ do
+ reply=$(echo "foo_${i}" | nc -w 5 -N 192.0.2.2 7)
+ if [ "$reply" != "foo_${i}" ];
+ then
+ atf_fail "Prioritised echo failed ${i}"
+ fi
+
+ done
+
+ # Now reverse priority
+ pft_set_rules altq_prioritise \
+ "altq on ${epair}b bandwidth 6000b cbq queue { default, slow }"
\
+ "queue default priority 7 cbq(default)" \
+ "queue slow priority 1 cbq" \
+ "match proto tcp queue slow" \
+ "match proto icmp queue default" \
+ "pass"
+
+ atf_check -s exit:0 -o ignore ping -c 1 192.0.2.2
+ ping -i .01 -c 50 -s 1200 192.0.2.2
+ for i in `seq 1 10`
+ do
+ reply=$(echo "foo_${i}" | nc -w 5 -N 192.0.2.2 7)
+ if [ "$reply" == "foo_${i}" ];
+ then
+ atf_fail "Unexpected echo success"
+ fi
+
+ done
+}
+
+prioritise_cleanup()
+{
+ altq_cleanup
+}
+
atf_init_test_cases()
{
atf_add_test_case "hfsc"
atf_add_test_case "match"
atf_add_test_case "cbq_vlan"
+ atf_add_test_case "prioritise"
}
-
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