| #!/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 how mirrors to gretap and ip6gretap react to changes to relevant |
| # configuration. |
| |
| ALL_TESTS=" |
| test_ttl |
| test_tun_up |
| test_egress_up |
| test_remote_ip |
| test_tun_del |
| test_route_del |
| " |
| |
| 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 |
| |
| # This test downs $swp3, which deletes the configured IPv6 address |
| # unless this sysctl is set. |
| sysctl_set net.ipv6.conf.$swp3.keep_addr_on_down 1 |
| |
| 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 $swp3 192.0.2.129/28 |
| |
| sysctl_restore net.ipv6.conf.$swp3.keep_addr_on_down |
| |
| mirror_gre_topo_destroy |
| vrf_cleanup |
| } |
| |
| test_span_gre_ttl() |
| { |
| local tundev=$1; shift |
| local type=$1; shift |
| local prot=$1; shift |
| local what=$1; shift |
| |
| RET=0 |
| |
| mirror_install $swp1 ingress $tundev \ |
| "prot ip flower ip_prot icmp" |
| tc filter add dev $h3 ingress pref 77 prot $prot \ |
| flower skip_hw ip_ttl 50 action pass |
| |
| mirror_test v$h1 192.0.2.1 192.0.2.2 $h3 77 0 |
| |
| ip link set dev $tundev type $type ttl 50 |
| sleep 2 |
| mirror_test v$h1 192.0.2.1 192.0.2.2 $h3 77 ">= 10" |
| |
| ip link set dev $tundev type $type ttl 100 |
| tc filter del dev $h3 ingress pref 77 |
| mirror_uninstall $swp1 ingress |
| |
| log_test "$what: TTL change" |
| } |
| |
| test_span_gre_tun_up() |
| { |
| local tundev=$1; shift |
| local what=$1; shift |
| |
| RET=0 |
| |
| ip link set dev $tundev down |
| mirror_install $swp1 ingress $tundev "matchall" |
| fail_test_span_gre_dir $tundev |
| |
| ip link set dev $tundev up |
| |
| quick_test_span_gre_dir $tundev |
| mirror_uninstall $swp1 ingress |
| |
| log_test "$what: tunnel down/up" |
| } |
| |
| test_span_gre_egress_up() |
| { |
| local tundev=$1; shift |
| local remote_ip=$1; shift |
| local what=$1; shift |
| |
| RET=0 |
| |
| ip link set dev $swp3 down |
| mirror_install $swp1 ingress $tundev "matchall" |
| fail_test_span_gre_dir $tundev |
| |
| # After setting the device up, wait for neighbor to get resolved so that |
| # we can expect mirroring to work. |
| ip link set dev $swp3 up |
| setup_wait_dev $swp3 |
| ping -c 1 -I $swp3 $remote_ip &>/dev/null |
| |
| quick_test_span_gre_dir $tundev |
| mirror_uninstall $swp1 ingress |
| |
| log_test "$what: egress down/up" |
| } |
| |
| test_span_gre_remote_ip() |
| { |
| local tundev=$1; shift |
| local type=$1; shift |
| local correct_ip=$1; shift |
| local wrong_ip=$1; shift |
| local what=$1; shift |
| |
| RET=0 |
| |
| ip link set dev $tundev type $type remote $wrong_ip |
| mirror_install $swp1 ingress $tundev "matchall" |
| fail_test_span_gre_dir $tundev |
| |
| ip link set dev $tundev type $type remote $correct_ip |
| quick_test_span_gre_dir $tundev |
| mirror_uninstall $swp1 ingress |
| |
| log_test "$what: remote address change" |
| } |
| |
| test_span_gre_tun_del() |
| { |
| local tundev=$1; shift |
| local type=$1; shift |
| local flags=$1; shift |
| local local_ip=$1; shift |
| local remote_ip=$1; shift |
| local what=$1; shift |
| |
| RET=0 |
| |
| mirror_install $swp1 ingress $tundev "matchall" |
| quick_test_span_gre_dir $tundev |
| ip link del dev $tundev |
| fail_test_span_gre_dir $tundev |
| |
| tunnel_create $tundev $type $local_ip $remote_ip \ |
| ttl 100 tos inherit $flags |
| |
| # Recreating the tunnel doesn't reestablish mirroring, so reinstall it |
| # and verify it works for the follow-up tests. |
| mirror_uninstall $swp1 ingress |
| mirror_install $swp1 ingress $tundev "matchall" |
| quick_test_span_gre_dir $tundev |
| mirror_uninstall $swp1 ingress |
| |
| log_test "$what: tunnel deleted" |
| } |
| |
| test_span_gre_route_del() |
| { |
| local tundev=$1; shift |
| local edev=$1; shift |
| local route=$1; shift |
| local what=$1; shift |
| |
| RET=0 |
| |
| mirror_install $swp1 ingress $tundev "matchall" |
| quick_test_span_gre_dir $tundev |
| |
| ip route del $route dev $edev |
| fail_test_span_gre_dir $tundev |
| |
| ip route add $route dev $edev |
| quick_test_span_gre_dir $tundev |
| |
| mirror_uninstall $swp1 ingress |
| |
| log_test "$what: underlay route removal" |
| } |
| |
| test_ttl() |
| { |
| test_span_gre_ttl gt4 gretap ip "mirror to gretap" |
| test_span_gre_ttl gt6 ip6gretap ipv6 "mirror to ip6gretap" |
| } |
| |
| test_tun_up() |
| { |
| test_span_gre_tun_up gt4 "mirror to gretap" |
| test_span_gre_tun_up gt6 "mirror to ip6gretap" |
| } |
| |
| test_egress_up() |
| { |
| test_span_gre_egress_up gt4 192.0.2.130 "mirror to gretap" |
| test_span_gre_egress_up gt6 2001:db8:2::2 "mirror to ip6gretap" |
| } |
| |
| test_remote_ip() |
| { |
| test_span_gre_remote_ip gt4 gretap 192.0.2.130 192.0.2.132 "mirror to gretap" |
| test_span_gre_remote_ip gt6 ip6gretap 2001:db8:2::2 2001:db8:2::4 "mirror to ip6gretap" |
| } |
| |
| test_tun_del() |
| { |
| test_span_gre_tun_del gt4 gretap "" \ |
| 192.0.2.129 192.0.2.130 "mirror to gretap" |
| test_span_gre_tun_del gt6 ip6gretap allow-localremote \ |
| 2001:db8:2::1 2001:db8:2::2 "mirror to ip6gretap" |
| } |
| |
| test_route_del() |
| { |
| test_span_gre_route_del gt4 $swp3 192.0.2.128/28 "mirror to gretap" |
| test_span_gre_route_del gt6 $swp3 2001:db8:2::/64 "mirror to ip6gretap" |
| } |
| |
| trap cleanup EXIT |
| |
| setup_prepare |
| setup_wait |
| |
| tests_run |
| |
| exit $EXIT_STATUS |
