From ba8d39871a10568afe27f21adf9be29d8e2bea95 Mon Sep 17 00:00:00 2001 From: Petr Machata Date: Fri, 27 Apr 2018 01:18:23 +0200 Subject: [PATCH] selftests: forwarding: Add test for mirror to gretap Add a test for basic mirroring to gretap and ip6gretap netdevices. Signed-off-by: Petr Machata Reviewed-by: Jiri Pirko Signed-off-by: David S. Miller --- .../selftests/net/forwarding/mirror_gre.sh | 139 ++++++++++++++++++ 1 file changed, 139 insertions(+) create mode 100755 tools/testing/selftests/net/forwarding/mirror_gre.sh diff --git a/tools/testing/selftests/net/forwarding/mirror_gre.sh b/tools/testing/selftests/net/forwarding/mirror_gre.sh new file mode 100755 index 000000000000..a8abc736f67c --- /dev/null +++ b/tools/testing/selftests/net/forwarding/mirror_gre.sh @@ -0,0 +1,139 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +# This test uses standard topology for testing gretap. See +# mirror_gre_topo_lib.sh for more details. +# +# Test for "tc action mirred egress mirror" when the device to mirror to is a +# gretap or ip6gretap netdevice. Expect that the packets come out encapsulated, +# and another gretap / ip6gretap netdevice is then capable of decapsulating the +# traffic. Test that the payload is what is expected (ICMP ping request or +# reply, depending on test). + +NUM_NETIFS=6 +source lib.sh +source mirror_lib.sh +source mirror_gre_lib.sh +source mirror_gre_topo_lib.sh + +setup_prepare() +{ + h1=${NETIFS[p1]} + swp1=${NETIFS[p2]} + + swp2=${NETIFS[p3]} + h2=${NETIFS[p4]} + + swp3=${NETIFS[p5]} + h3=${NETIFS[p6]} + + vrf_prepare + mirror_gre_topo_create + + ip address add dev $swp3 192.0.2.129/28 + ip address add dev $h3 192.0.2.130/28 + + ip address add dev $swp3 2001:db8:2::1/64 + ip address add dev $h3 2001:db8:2::2/64 +} + +cleanup() +{ + pre_cleanup + + ip address del dev $h3 2001:db8:2::2/64 + ip address del dev $swp3 2001:db8:2::1/64 + + ip address del dev $h3 192.0.2.130/28 + ip address del dev $swp3 192.0.2.129/28 + + mirror_gre_topo_destroy + vrf_cleanup +} + +test_span_gre_mac() +{ + local tundev=$1; shift + local direction=$1; shift + local prot=$1; shift + local what=$1; shift + + local swp3mac=$(mac_get $swp3) + local h3mac=$(mac_get $h3) + + RET=0 + + mirror_install $swp1 $direction $tundev "matchall $tcflags" + tc qdisc add dev $h3 clsact + tc filter add dev $h3 ingress pref 77 prot $prot \ + flower ip_proto 0x2f src_mac $swp3mac dst_mac $h3mac \ + action pass + + mirror_test v$h1 192.0.2.1 192.0.2.2 $h3 77 10 + + tc filter del dev $h3 ingress pref 77 + tc qdisc del dev $h3 clsact + mirror_uninstall $swp1 $direction + + log_test "$direction $what: envelope MAC ($tcflags)" +} + +test_two_spans() +{ + RET=0 + + mirror_install $swp1 ingress gt4 "matchall $tcflags" + mirror_install $swp1 egress gt6 "matchall $tcflags" + quick_test_span_gre_dir gt4 ingress + quick_test_span_gre_dir gt6 egress + + mirror_uninstall $swp1 ingress + fail_test_span_gre_dir gt4 ingress + quick_test_span_gre_dir gt6 egress + + mirror_install $swp1 ingress gt4 "matchall $tcflags" + mirror_uninstall $swp1 egress + quick_test_span_gre_dir gt4 ingress + fail_test_span_gre_dir gt6 egress + + mirror_uninstall $swp1 ingress + log_test "two simultaneously configured mirrors ($tcflags)" +} + +test_all() +{ + slow_path_trap_install $swp1 ingress + slow_path_trap_install $swp1 egress + + full_test_span_gre_dir gt4 ingress 8 0 "mirror to gretap" + full_test_span_gre_dir gt6 ingress 8 0 "mirror to ip6gretap" + full_test_span_gre_dir gt4 egress 0 8 "mirror to gretap" + full_test_span_gre_dir gt6 egress 0 8 "mirror to ip6gretap" + + test_span_gre_mac gt4 ingress ip "mirror to gretap" + test_span_gre_mac gt6 ingress ipv6 "mirror to ip6gretap" + test_span_gre_mac gt4 egress ip "mirror to gretap" + test_span_gre_mac gt6 egress ipv6 "mirror to ip6gretap" + + test_two_spans + + slow_path_trap_uninstall $swp1 egress + slow_path_trap_uninstall $swp1 ingress +} + +trap cleanup EXIT + +setup_prepare +setup_wait + +tcflags="skip_hw" +test_all + +if ! tc_offload_check; then + echo "WARN: Could not test offloaded functionality" +else + tcflags="skip_sw" + test_all +fi + +exit $EXIT_STATUS