tools/testing/selftests/bpf/test_xdping.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 # xdping tests
   5 #   Here we setup and teardown configuration required to run
   6 #   xdping, exercising its options.
   7 #
   8 #   Setup is similar to test_tunnel tests but without the tunnel.
   9 #
  10 # Topology:
  11 # ---------
  12 #     root namespace   |     tc_ns0 namespace
  13 #                      |
  14 #      ----------      |     ----------
  15 #      |  veth1  | --------- |  veth0  |
  16 #      ----------    peer    ----------
  17 #
  18 # Device Configuration
  19 # --------------------
  20 # Root namespace with BPF
  21 # Device names and addresses:
  22 #       veth1 IP: 10.1.1.200
  23 #       xdp added to veth1, xdpings originate from here.
  24 #
  25 # Namespace tc_ns0 with BPF
  26 # Device names and addresses:
  27 #       veth0 IPv4: 10.1.1.100
  28 #       For some tests xdping run in server mode here.
  29 #
  30
  31 readonly TARGET_IP="10.1.1.100"
  32 readonly TARGET_NS="xdp_ns0"
  33
  34 readonly LOCAL_IP="10.1.1.200"
  35
  36 setup()
  37 {
  38         ip netns add $TARGET_NS
  39         ip link add veth0 type veth peer name veth1
  40         ip link set veth0 netns $TARGET_NS
  41         ip netns exec $TARGET_NS ip addr add ${TARGET_IP}/24 dev veth0
  42         ip addr add ${LOCAL_IP}/24 dev veth1
  43         ip netns exec $TARGET_NS ip link set veth0 up
  44         ip link set veth1 up
  45 }
  46
  47 cleanup()
  48 {
  49         set +e
  50         ip netns delete $TARGET_NS 2>/dev/null
  51         ip link del veth1 2>/dev/null
  52         if [[ $server_pid -ne 0 ]]; then
  53                 kill -TERM $server_pid
  54         fi
  55 }
  56
  57 test()
  58 {
  59         client_args="$1"
  60         server_args="$2"
  61
  62         echo "Test client args '$client_args'; server args '$server_args'"
  63
  64         server_pid=0
  65         if [[ -n "$server_args" ]]; then
  66                 ip netns exec $TARGET_NS ./xdping $server_args &
  67                 server_pid=$!
  68                 sleep 10
  69         fi
  70         ./xdping $client_args $TARGET_IP
  71
  72         if [[ $server_pid -ne 0 ]]; then
  73                 kill -TERM $server_pid
  74                 server_pid=0
  75         fi
  76
  77         echo "Test client args '$client_args'; server args '$server_args': PASS"
  78 }
  79
  80 set -e
  81
  82 server_pid=0
  83
  84 trap cleanup EXIT
  85
  86 setup
  87
  88 for server_args in "" "-I veth0 -s -S" ; do
  89         # client in skb mode
  90         client_args="-I veth1 -S"
  91         test "$client_args" "$server_args"
  92
  93         # client with count of 10 RTT measurements.
  94         client_args="-I veth1 -S -c 10"
  95         test "$client_args" "$server_args"
  96 done
  97
  98 echo "OK. All tests passed"
  99 exit 0