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 what=$1; shift
  64
  65         RET=0
  66
  67         ip neigh replace dev $swp3 $addr lladdr 00:11:22:33:44:55
  68         mirror_install $swp1 $direction $tundev "matchall $tcflags"
  69         fail_test_span_gre_dir $tundev ingress
  70         ip neigh del dev $swp3 $addr
  71         quick_test_span_gre_dir $tundev ingress
  72         mirror_uninstall $swp1 $direction
  73
  74         log_test "$direction $what: neighbor change ($tcflags)"
  75 }
  76
  77 test_gretap()
  78 {
  79         test_span_gre_neigh 192.0.2.130 gt4 ingress "mirror to gretap"
  80         test_span_gre_neigh 192.0.2.130 gt4 egress "mirror to gretap"
  81 }
  82
  83 test_ip6gretap()
  84 {
  85         test_span_gre_neigh 2001:db8:2::2 gt6 ingress "mirror to ip6gretap"
  86         test_span_gre_neigh 2001:db8:2::2 gt6 egress "mirror to ip6gretap"
  87 }
  88
  89 test_all()
  90 {
  91         slow_path_trap_install $swp1 ingress
  92         slow_path_trap_install $swp1 egress
  93
  94         tests_run
  95
  96         slow_path_trap_uninstall $swp1 egress
  97         slow_path_trap_uninstall $swp1 ingress
  98 }
  99
 100 trap cleanup EXIT
 101
 102 setup_prepare
 103 setup_wait
 104
 105 tcflags="skip_hw"
 106 test_all
 107
 108 if ! tc_offload_check; then
 109         echo "WARN: Could not test offloaded functionality"
 110 else
 111         tcflags="skip_sw"
 112         test_all
 113 fi
 114
 115 exit $EXIT_STATUS