tools/testing/selftests/net/forwarding/mirror_gre_neigh.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 mirroring to gretap and ip6gretap, such that the neighbor entry for
   8 # the tunnel remote address has invalid address at the time that the mirroring
   9 # is set up. Later on, the neighbor is deleted and it is expected to be
  10 # reinitialized using the usual ARP process, and the mirroring offload updated.
  11
  12 ALL_TESTS="
  13         test_gretap
  14         test_ip6gretap
  15 "
  16
  17 NUM_NETIFS=6
  18 source lib.sh
  19 source mirror_lib.sh
  20 source mirror_gre_lib.sh
  21 source mirror_gre_topo_lib.sh
  22
  23 setup_prepare()
  24 {
  25         h1=${NETIFS[p1]}
  26         swp1=${NETIFS[p2]}
  27
  28         swp2=${NETIFS[p3]}
  29         h2=${NETIFS[p4]}
  30
  31         swp3=${NETIFS[p5]}
  32         h3=${NETIFS[p6]}
  33
  34         vrf_prepare
  35         mirror_gre_topo_create
  36
  37         ip address add dev $swp3 192.0.2.129/28
  38         ip address add dev $h3 192.0.2.130/28
  39
  40         ip address add dev $swp3 2001:db8:2::1/64
  41         ip address add dev $h3 2001:db8:2::2/64
  42 }
  43
  44 cleanup()
  45 {
  46         pre_cleanup
  47
  48         ip address del dev $h3 2001:db8:2::2/64
  49         ip address del dev $swp3 2001:db8:2::1/64
  50
  51         ip address del dev $h3 192.0.2.130/28
  52         ip address del dev $swp3 192.0.2.129/28
  53
  54         mirror_gre_topo_destroy
  55         vrf_cleanup
  56 }
  57
  58 test_span_gre_neigh()
  59 {
  60         local addr=$1; shift
  61         local tundev=$1; shift
  62         local direction=$1; shift
  63         local forward_type=$1; shift
  64         local backward_type=$1; shift
  65         local what=$1; shift
  66
  67         RET=0
  68
  69         ip neigh replace dev $swp3 $addr lladdr 00:11:22:33:44:55
  70         mirror_install $swp1 $direction $tundev "matchall"
  71         fail_test_span_gre_dir $tundev "$forward_type" "$backward_type"
  72         ip neigh del dev $swp3 $addr
  73         quick_test_span_gre_dir $tundev "$forward_type" "$backward_type"
  74         mirror_uninstall $swp1 $direction
  75
  76         log_test "$direction $what: neighbor change"
  77 }
  78
  79 test_gretap()
  80 {
  81         test_span_gre_neigh 192.0.2.130 gt4 ingress 8 0 "mirror to gretap"
  82         test_span_gre_neigh 192.0.2.130 gt4 egress 0 8 "mirror to gretap"
  83 }
  84
  85 test_ip6gretap()
  86 {
  87         test_span_gre_neigh 2001:db8:2::2 gt6 ingress 8 0 "mirror to ip6gretap"
  88         test_span_gre_neigh 2001:db8:2::2 gt6 egress 0 8 "mirror to ip6gretap"
  89 }
  90
  91 trap cleanup EXIT
  92
  93 setup_prepare
  94 setup_wait
  95
  96 tests_run
  97
  98 exit $EXIT_STATUS