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Message-Id: <20180115191853.26129-5-idosch@mellanox.com>
Date: Mon, 15 Jan 2018 21:18:45 +0200
From: Ido Schimmel <idosch@...lanox.com>
To: netdev@...r.kernel.org, linux-kselftest@...r.kernel.org
Cc: davem@...emloft.net, shuah@...nel.org, dsahern@...il.com,
nikolay@...ulusnetworks.com, roopa@...ulusnetworks.com,
andy@...yhouse.net, jiri@...lanox.com, mlxsw@...lanox.com,
saeedm@...lanox.com, tariqt@...lanox.com, jhs@...atatu.com,
lucasb@...atatu.com, f.fainelli@...il.com,
vivien.didelot@...oirfairelinux.com, andrew@...n.ch,
jakub.kicinski@...ronome.com, simon.horman@...ronome.com,
Ido Schimmel <idosch@...lanox.com>
Subject: [RFC PATCH net-next 04/12] selftests: forwarding: Add a test for basic IPv4 and IPv6 routing
Configure two hosts which are directly connected to the same router and
test IPv4 and IPv6 ping. Use a large MTU and check that ping is
unaffected.
Signed-off-by: Ido Schimmel <idosch@...lanox.com>
---
tools/testing/selftests/forwarding/Makefile | 2 +-
tools/testing/selftests/forwarding/lib.sh | 15 +++
tools/testing/selftests/forwarding/router.sh | 131 +++++++++++++++++++++++++++
3 files changed, 147 insertions(+), 1 deletion(-)
create mode 100755 tools/testing/selftests/forwarding/router.sh
diff --git a/tools/testing/selftests/forwarding/Makefile b/tools/testing/selftests/forwarding/Makefile
index ef9380c49123..4efb0c96af94 100644
--- a/tools/testing/selftests/forwarding/Makefile
+++ b/tools/testing/selftests/forwarding/Makefile
@@ -1,6 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
# Makefile for forwarding selftests
-TEST_PROGS := bridge.sh
+TEST_PROGS := bridge.sh router.sh
include ../lib.mk
diff --git a/tools/testing/selftests/forwarding/lib.sh b/tools/testing/selftests/forwarding/lib.sh
index 03e5253b30d8..11b6f6101d10 100644
--- a/tools/testing/selftests/forwarding/lib.sh
+++ b/tools/testing/selftests/forwarding/lib.sh
@@ -176,6 +176,21 @@ bridge_ageing_time_get()
echo $((ageing_time / 100))
}
+forwarding_enable()
+{
+ ipv4_fwd=$(sysctl -n net.ipv4.conf.all.forwarding)
+ ipv6_fwd=$(sysctl -n net.ipv6.conf.all.forwarding)
+
+ sysctl -q -w net.ipv4.conf.all.forwarding=1
+ sysctl -q -w net.ipv6.conf.all.forwarding=1
+}
+
+forwarding_restore()
+{
+ sysctl -q -w net.ipv6.conf.all.forwarding=$ipv6_fwd
+ sysctl -q -w net.ipv4.conf.all.forwarding=$ipv4_fwd
+}
+
### Tests ###
ping_test()
diff --git a/tools/testing/selftests/forwarding/router.sh b/tools/testing/selftests/forwarding/router.sh
new file mode 100755
index 000000000000..79ad6cba9118
--- /dev/null
+++ b/tools/testing/selftests/forwarding/router.sh
@@ -0,0 +1,131 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+NUM_NETIFS=4
+source lib.sh
+
+h1_create()
+{
+ vrf_create "vrf-h1" 1
+ ip link set dev $h1 master vrf-h1
+
+ ip link set dev vrf-h1 up
+ ip link set dev $h1 up
+
+ ip address add 192.0.2.2/24 dev $h1
+ ip address add 2001:db8:1::2/64 dev $h1
+
+ ip route add 198.51.100.0/24 vrf vrf-h1 nexthop via 192.0.2.1
+ ip route add 2001:db8:2::/64 vrf vrf-h1 nexthop via 2001:db8:1::1
+}
+
+h1_destroy()
+{
+ ip route del 2001:db8:2::/64 vrf vrf-h1
+ ip route del 198.51.100.0/24 vrf vrf-h1
+
+ ip address del 2001:db8:1::2/64 dev $h1
+ ip address del 192.0.2.2/24 dev $h1
+
+ ip link set dev $h1 down
+ vrf_destroy "vrf-h1" 1
+}
+
+h2_create()
+{
+ vrf_create "vrf-h2" 2
+ ip link set dev $h2 master vrf-h2
+
+ ip link set dev vrf-h2 up
+ ip link set dev $h2 up
+
+ ip address add 198.51.100.2/24 dev $h2
+ ip address add 2001:db8:2::2/64 dev $h2
+
+ ip route add 192.0.2.0/24 vrf vrf-h2 nexthop via 198.51.100.1
+ ip route add 2001:db8:1::/64 vrf vrf-h2 nexthop via 2001:db8:2::1
+}
+
+h2_destroy()
+{
+ ip route del 2001:db8:1::/64 vrf vrf-h2
+ ip route del 192.0.2.0/24 vrf vrf-h2
+
+ ip address del 2001:db8:2::2/64 dev $h2
+ ip address del 198.51.100.2/24 dev $h2
+
+ ip link set dev $h2 down
+ vrf_destroy "vrf-h2" 2
+}
+
+router_create()
+{
+ ip link set dev $rp1 up
+ ip link set dev $rp2 up
+
+ ip address add 192.0.2.1/24 dev $rp1
+ ip address add 2001:db8:1::1/64 dev $rp1
+
+ ip address add 198.51.100.1/24 dev $rp2
+ ip address add 2001:db8:2::1/64 dev $rp2
+}
+
+router_destroy()
+{
+ ip address del 2001:db8:2::1/64 dev $rp2
+ ip address del 198.51.100.1/24 dev $rp2
+
+ ip address del 2001:db8:1::1/64 dev $rp1
+ ip address del 192.0.2.1/24 dev $rp1
+
+ ip link set dev $rp2 down
+ ip link set dev $rp1 down
+}
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ rp1=${NETIFS[p2]}
+
+ rp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ netifs_arr=($h1 $rp1 $rp2 $h2)
+
+ vrf_prepare
+
+ h1_create
+ h2_create
+
+ router_create
+
+ forwarding_enable
+}
+
+cleanup()
+{
+ forwarding_restore
+
+ router_destroy
+
+ h2_destroy
+ h1_destroy
+
+ vrf_cleanup
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+ping_test "vrf-h1" 198.51.100.2
+ping_test "vrf-h1" 2001:db8:2::2
+
+old_mtu=$(mtu_get $h1)
+mtu_change 9000 "${netifs_arr[@]}"
+ping_test "vrf-h1" 198.51.100.2
+ping_test "vrf-h1" 2001:db8:2::2
+mtu_change $old_mtu "${netifs_arr[@]}"
+
+exit $EXIT_STATUS
--
2.14.3
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