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