| #!/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 that gretap and ip6gretap mirroring works when the other tunnel endpoint |
| # is reachable through a next-hop route (as opposed to directly-attached route). |
| |
| ALL_TESTS=" |
| test_gretap |
| test_ip6gretap |
| " |
| |
| 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]} |
| |
| sysctl_set net.ipv4.conf.all.rp_filter 0 |
| sysctl_set net.ipv4.conf.$h3.rp_filter 0 |
| |
| vrf_prepare |
| mirror_gre_topo_create |
| |
| sysctl_set net.ipv4.conf.v$h3.rp_filter 0 |
| |
| ip address add dev $swp3 192.0.2.161/28 |
| ip address add dev $h3 192.0.2.162/28 |
| ip address add dev gt4 192.0.2.129/32 |
| ip address add dev h3-gt4 192.0.2.130/32 |
| |
| # IPv6 route can't be added after address. Such routes are rejected due |
| # to the gateway address having been configured on the local system. It |
| # works the other way around though. |
| ip address add dev $swp3 2001:db8:4::1/64 |
| ip -6 route add 2001:db8:2::2/128 via 2001:db8:4::2 |
| ip address add dev $h3 2001:db8:4::2/64 |
| ip address add dev gt6 2001:db8:2::1 |
| ip address add dev h3-gt6 2001:db8:2::2 |
| } |
| |
| cleanup() |
| { |
| pre_cleanup |
| |
| ip -6 route del 2001:db8:2::2/128 via 2001:db8:4::2 |
| ip address del dev $h3 2001:db8:4::2/64 |
| ip address del dev $swp3 2001:db8:4::1/64 |
| |
| ip address del dev $h3 192.0.2.162/28 |
| ip address del dev $swp3 192.0.2.161/28 |
| |
| sysctl_restore net.ipv4.conf.v$h3.rp_filter 0 |
| |
| mirror_gre_topo_destroy |
| vrf_cleanup |
| |
| sysctl_restore net.ipv4.conf.$h3.rp_filter |
| sysctl_restore net.ipv4.conf.all.rp_filter |
| } |
| |
| test_gretap() |
| { |
| RET=0 |
| mirror_install $swp1 ingress gt4 "matchall" |
| |
| # For IPv4, test that there's no mirroring without the route directing |
| # the traffic to tunnel remote address. Then add it and test that |
| # mirroring starts. For IPv6 we can't test this due to the limitation |
| # that routes for locally-specified IPv6 addresses can't be added. |
| fail_test_span_gre_dir gt4 |
| |
| ip route add 192.0.2.130/32 via 192.0.2.162 |
| quick_test_span_gre_dir gt4 |
| ip route del 192.0.2.130/32 via 192.0.2.162 |
| |
| mirror_uninstall $swp1 ingress |
| log_test "mirror to gre with next-hop remote" |
| } |
| |
| test_ip6gretap() |
| { |
| RET=0 |
| |
| mirror_install $swp1 ingress gt6 "matchall" |
| quick_test_span_gre_dir gt6 |
| mirror_uninstall $swp1 ingress |
| |
| log_test "mirror to ip6gre with next-hop remote" |
| } |
| |
| trap cleanup EXIT |
| |
| setup_prepare |
| setup_wait |
| |
| tests_run |
| |
| exit $EXIT_STATUS |
