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@mellanox.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