tools/testing/selftests/net/forwarding/mirror_gre.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 # This test uses standard topology for testing gretap. See
   5 # mirror_gre_topo_lib.sh for more details.
   6 #
   7 # Test for "tc action mirred egress mirror" when the device to mirror to is a
   8 # gretap or ip6gretap netdevice. Expect that the packets come out encapsulated,
   9 # and another gretap / ip6gretap netdevice is then capable of decapsulating the
  10 # traffic. Test that the payload is what is expected (ICMP ping request or
  11 # reply, depending on test).
  12
  13 ALL_TESTS="
  14         test_gretap
  15         test_ip6gretap
  16         test_gretap_mac
  17         test_ip6gretap_mac
  18         test_two_spans
  19 "
  20
  21 NUM_NETIFS=6
  22 source lib.sh
  23 source mirror_lib.sh
  24 source mirror_gre_lib.sh
  25 source mirror_gre_topo_lib.sh
  26
  27 setup_prepare()
  28 {
  29         h1=${NETIFS[p1]}
  30         swp1=${NETIFS[p2]}
  31
  32         swp2=${NETIFS[p3]}
  33         h2=${NETIFS[p4]}
  34
  35         swp3=${NETIFS[p5]}
  36         h3=${NETIFS[p6]}
  37
  38         vrf_prepare
  39         mirror_gre_topo_create
  40
  41         ip address add dev $swp3 192.0.2.129/28
  42         ip address add dev $h3 192.0.2.130/28
  43
  44         ip address add dev $swp3 2001:db8:2::1/64
  45         ip address add dev $h3 2001:db8:2::2/64
  46 }
  47
  48 cleanup()
  49 {
  50         pre_cleanup
  51
  52         ip address del dev $h3 2001:db8:2::2/64
  53         ip address del dev $swp3 2001:db8:2::1/64
  54
  55         ip address del dev $h3 192.0.2.130/28
  56         ip address del dev $swp3 192.0.2.129/28
  57
  58         mirror_gre_topo_destroy
  59         vrf_cleanup
  60 }
  61
  62 test_span_gre_mac()
  63 {
  64         local tundev=$1; shift
  65         local direction=$1; shift
  66         local what=$1; shift
  67
  68         case "$direction" in
  69         ingress) local src_mac=$(mac_get $h1); local dst_mac=$(mac_get $h2)
  70                 ;;
  71         egress) local src_mac=$(mac_get $h2); local dst_mac=$(mac_get $h1)
  72                 ;;
  73         esac
  74
  75         RET=0
  76
  77         mirror_install $swp1 $direction $tundev "matchall $tcflags"
  78         icmp_capture_install h3-${tundev} "src_mac $src_mac dst_mac $dst_mac"
  79
  80         mirror_test v$h1 192.0.2.1 192.0.2.2 h3-${tundev} 100 10
  81
  82         icmp_capture_uninstall h3-${tundev}
  83         mirror_uninstall $swp1 $direction
  84
  85         log_test "$direction $what: envelope MAC ($tcflags)"
  86 }
  87
  88 test_two_spans()
  89 {
  90         RET=0
  91
  92         mirror_install $swp1 ingress gt4 "matchall $tcflags"
  93         mirror_install $swp1 egress gt6 "matchall $tcflags"
  94         quick_test_span_gre_dir gt4 ingress
  95         quick_test_span_gre_dir gt6 egress
  96
  97         mirror_uninstall $swp1 ingress
  98         fail_test_span_gre_dir gt4 ingress
  99         quick_test_span_gre_dir gt6 egress
 100
 101         mirror_install $swp1 ingress gt4 "matchall $tcflags"
 102         mirror_uninstall $swp1 egress
 103         quick_test_span_gre_dir gt4 ingress
 104         fail_test_span_gre_dir gt6 egress
 105
 106         mirror_uninstall $swp1 ingress
 107         log_test "two simultaneously configured mirrors ($tcflags)"
 108 }
 109
 110 test_gretap()
 111 {
 112         full_test_span_gre_dir gt4 ingress 8 0 "mirror to gretap"
 113         full_test_span_gre_dir gt4 egress 0 8 "mirror to gretap"
 114 }
 115
 116 test_ip6gretap()
 117 {
 118         full_test_span_gre_dir gt6 ingress 8 0 "mirror to ip6gretap"
 119         full_test_span_gre_dir gt6 egress 0 8 "mirror to ip6gretap"
 120 }
 121
 122 test_gretap_mac()
 123 {
 124         test_span_gre_mac gt4 ingress "mirror to gretap"
 125         test_span_gre_mac gt4 egress "mirror to gretap"
 126 }
 127
 128 test_ip6gretap_mac()
 129 {
 130         test_span_gre_mac gt6 ingress "mirror to ip6gretap"
 131         test_span_gre_mac gt6 egress "mirror to ip6gretap"
 132 }
 133
 134 test_all()
 135 {
 136         slow_path_trap_install $swp1 ingress
 137         slow_path_trap_install $swp1 egress
 138
 139         tests_run
 140
 141         slow_path_trap_uninstall $swp1 egress
 142         slow_path_trap_uninstall $swp1 ingress
 143 }
 144
 145 trap cleanup EXIT
 146
 147 setup_prepare
 148 setup_wait
 149
 150 tcflags="skip_hw"
 151 test_all
 152
 153 if ! tc_offload_check; then
 154         echo "WARN: Could not test offloaded functionality"
 155 else
 156         tcflags="skip_sw"
 157         test_all
 158 fi
 159
 160 exit $EXIT_STATUS