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Date: Thu, 13 Oct 2022 15:16:32 +0300
From: Ido Schimmel <idosch@...dia.com>
To: "Hans J. Schultz" <netdev@...io-technology.com>
Cc: davem@...emloft.net, kuba@...nel.org, netdev@...r.kernel.org,
Florian Fainelli <f.fainelli@...il.com>,
Andrew Lunn <andrew@...n.ch>,
Vivien Didelot <vivien.didelot@...il.com>,
Vladimir Oltean <olteanv@...il.com>,
Eric Dumazet <edumazet@...gle.com>,
Paolo Abeni <pabeni@...hat.com>,
Kurt Kanzenbach <kurt@...utronix.de>,
Hauke Mehrtens <hauke@...ke-m.de>,
Woojung Huh <woojung.huh@...rochip.com>,
UNGLinuxDriver@...rochip.com, Sean Wang <sean.wang@...iatek.com>,
Landen Chao <Landen.Chao@...iatek.com>,
DENG Qingfang <dqfext@...il.com>,
Matthias Brugger <matthias.bgg@...il.com>,
Claudiu Manoil <claudiu.manoil@....com>,
Alexandre Belloni <alexandre.belloni@...tlin.com>,
Jiri Pirko <jiri@...nulli.us>,
Ivan Vecera <ivecera@...hat.com>,
Roopa Prabhu <roopa@...dia.com>,
Nikolay Aleksandrov <razor@...ckwall.org>,
Shuah Khan <shuah@...nel.org>,
Russell King <linux@...linux.org.uk>,
Christian Marangi <ansuelsmth@...il.com>,
Daniel Borkmann <daniel@...earbox.net>,
Yuwei Wang <wangyuweihx@...il.com>,
Petr Machata <petrm@...dia.com>,
Florent Fourcot <florent.fourcot@...irst.fr>,
Hans Schultz <schultz.hans@...il.com>,
Joachim Wiberg <troglobit@...il.com>,
Amit Cohen <amcohen@...dia.com>, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org,
bridge@...ts.linux-foundation.org, linux-kselftest@...r.kernel.org
Subject: Re: [PATCH v7 net-next 9/9] selftests: forwarding: add test of
MAC-Auth Bypass to locked port tests
On Sun, Oct 09, 2022 at 07:40:52PM +0200, Hans J. Schultz wrote:
> +++ b/tools/testing/selftests/net/forwarding/bridge_blackhole_fdb.sh
> @@ -0,0 +1,134 @@
> +#!/bin/bash
> +# SPDX-License-Identifier: GPL-2.0
> +
> +ALL_TESTS="blackhole_fdb"
> +NUM_NETIFS=4
> +source tc_common.sh
> +source lib.sh
> +
> +h1_create()
> +{
> + simple_if_init $h1 192.0.2.1/24 2001:db8:1::1/64
> + vlan_create $h1 100 v$h1 198.51.100.1/24
> +}
> +
> +h1_destroy()
> +{
> + vlan_destroy $h1 100
> + simple_if_fini $h1 192.0.2.1/24 2001:db8:1::1/64
> +}
> +
> +h2_create()
> +{
> + simple_if_init $h2 192.0.2.2/24 2001:db8:1::2/64
> + vlan_create $h2 100 v$h2 198.51.100.2/24
> +}
> +
> +h2_destroy()
> +{
> + vlan_destroy $h2 100
> + simple_if_fini $h2 192.0.2.2/24 2001:db8:1::2/64
> +}
There is unnecessary configuration here. Can be simplified:
diff --git a/tools/testing/selftests/net/forwarding/bridge_blackhole_fdb.sh b/tools/testing/selftests/net/forwarding/bridge_blackhole_fdb.sh
index 77d166180bc4..cc2145ea1968 100755
--- a/tools/testing/selftests/net/forwarding/bridge_blackhole_fdb.sh
+++ b/tools/testing/selftests/net/forwarding/bridge_blackhole_fdb.sh
@@ -8,26 +8,22 @@ source lib.sh
h1_create()
{
- simple_if_init $h1 192.0.2.1/24 2001:db8:1::1/64
- vlan_create $h1 100 v$h1 198.51.100.1/24
+ simple_if_init $h1 192.0.2.1/24
}
h1_destroy()
{
- vlan_destroy $h1 100
- simple_if_fini $h1 192.0.2.1/24 2001:db8:1::1/64
+ simple_if_fini $h1 192.0.2.1/24
}
h2_create()
{
- simple_if_init $h2 192.0.2.2/24 2001:db8:1::2/64
- vlan_create $h2 100 v$h2 198.51.100.2/24
+ simple_if_init $h2 192.0.2.2/24
}
h2_destroy()
{
- vlan_destroy $h2 100
- simple_if_fini $h2 192.0.2.2/24 2001:db8:1::2/64
+ simple_if_fini $h2 192.0.2.2/24
}
switch_create()
> +
> +switch_create()
> +{
> + ip link add dev br0 type bridge vlan_filtering 1
> +
> + ip link set dev $swp1 master br0
> + ip link set dev $swp2 master br0
> +
> + ip link set dev br0 up
> + ip link set dev $swp1 up
> + ip link set dev $swp2 up
> +
> + tc qdisc add dev $swp2 clsact
> +}
> +
> +switch_destroy()
> +{
> + tc qdisc del dev $swp2 clsact
> +
> + ip link set dev $swp2 down
> + ip link set dev $swp1 down
> +
> + ip link del dev br0
> +}
> +
> +setup_prepare()
> +{
> + h1=${NETIFS[p1]}
> + swp1=${NETIFS[p2]}
> + h2=${NETIFS[p3]}
> + swp2=${NETIFS[p4]}
> +
> + vrf_prepare
> +
> + h1_create
> + h2_create
> +
> + switch_create
> +}
> +
> +cleanup()
> +{
> + pre_cleanup
> +
> + switch_destroy
> +
> + h2_destroy
> + h1_destroy
> +
> + vrf_cleanup
> +}
> +
> +# Check that there is no egress with blackhole entry and that blackhole entries can be replaced
Wrap this to 80 columns:
# Check that there is no egress with blackhole entry and that blackhole entries
# can be replaced.
> +blackhole_fdb()
> +{
> + RET=0
> +
> + check_blackhole_fdb_support || return 0
> +
> + tc filter add dev $swp2 egress protocol ip pref 1 handle 1 flower \
> + dst_ip 192.0.2.2 ip_proto udp dst_port 12345 action pass
> +
> + $MZ $h1 -c 1 -p 128 -t udp "sp=54321,dp=12345" \
> + -a own -b `mac_get $h2` -A 192.0.2.1 -B 192.0.2.2 -q
> +
> + tc_check_packets "dev $swp2 egress" 1 1
> + check_err $? "Packet not seen on egress before adding blackhole entry"
> +
> + bridge fdb replace `mac_get $h2` dev br0 blackhole
vlan 1
> + bridge fdb get `mac_get $h2` br br0 | grep -q blackhole
vlan 1
> + check_err $? "Blackhole entry not found"
> +
> + $MZ $h1 -c 1 -p 128 -t udp "sp=54321,dp=12345" \
> + -a own -b `mac_get $h2` -A 192.0.2.1 -B 192.0.2.2 -q
> +
> + tc_check_packets "dev $swp2 egress" 1 1
> + check_err $? "Packet seen on egress after adding blackhole entry"
> +
> + # Check blackhole entries can be replaced.
> + bridge fdb replace `mac_get $h2` dev $swp2 master static
vlan 1
> + bridge fdb get `mac_get $h2` br br0 | grep -q blackhole
vlan 1
> + check_fail $? "Blackhole entry found after replacement"
> +
> + $MZ $h1 -c 1 -p 128 -t udp "sp=54321,dp=12345" \
> + -a own -b `mac_get $h2` -A 192.0.2.1 -B 192.0.2.2 -q
> +
> + tc_check_packets "dev $swp2 egress" 1 2
> + check_err $? "Packet not seen on egress after replacing blackhole entry"
> +
> + bridge fdb del `mac_get $h2` dev $swp2 master static
vlan 1
> + tc filter del dev $swp2 egress protocol ip pref 1 handle 1 flower
> +
> + log_test "Blackhole FDB entry"
> +}
Tested with veth pairs. Looks OK to me.
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