1 files changed, 79 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/test_xdp_redirect.sh b/tools/testing/selftests/bpf/test_xdp_redirect.sh
new file mode 100755
index 000000000..0746a4fde
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_xdp_redirect.sh
@@ -0,0 +1,79 @@
+#!/bin/bash
+# Create 2 namespaces with two veth peers, and
+# forward packets in-between using generic XDP
+#
+# NS1(veth11)     NS2(veth22)
+#     |               |
+#     |               |
+#   (veth1, ------ (veth2,
+#   id:111)         id:222)
+#     | xdp forwarding |
+#     ------------------
+
+readonly NS1="ns1-$(mktemp -u XXXXXX)"
+readonly NS2="ns2-$(mktemp -u XXXXXX)"
+ret=0
+
+setup()
+{
+
+	local xdpmode=$1
+
+	ip netns add ${NS1}
+	ip netns add ${NS2}
+
+	ip link add veth1 index 111 type veth peer name veth11 netns ${NS1}
+	ip link add veth2 index 222 type veth peer name veth22 netns ${NS2}
+
+	ip link set veth1 up
+	ip link set veth2 up
+	ip -n ${NS1} link set dev veth11 up
+	ip -n ${NS2} link set dev veth22 up
+
+	ip -n ${NS1} addr add 10.1.1.11/24 dev veth11
+	ip -n ${NS2} addr add 10.1.1.22/24 dev veth22
+}
+
+cleanup()
+{
+	ip link del veth1 2> /dev/null
+	ip link del veth2 2> /dev/null
+	ip netns del ${NS1} 2> /dev/null
+	ip netns del ${NS2} 2> /dev/null
+}
+
+test_xdp_redirect()
+{
+	local xdpmode=$1
+
+	setup
+
+	ip link set dev veth1 $xdpmode off &> /dev/null
+	if [ $? -ne 0 ];then
+		echo "selftests: test_xdp_redirect $xdpmode [SKIP]"
+		return 0
+	fi
+
+	ip -n ${NS1} link set veth11 $xdpmode obj xdp_dummy.bpf.o sec xdp &> /dev/null
+	ip -n ${NS2} link set veth22 $xdpmode obj xdp_dummy.bpf.o sec xdp &> /dev/null
+	ip link set dev veth1 $xdpmode obj test_xdp_redirect.bpf.o sec redirect_to_222 &> /dev/null
+	ip link set dev veth2 $xdpmode obj test_xdp_redirect.bpf.o sec redirect_to_111 &> /dev/null
+
+	if ip netns exec ${NS1} ping -c 1 10.1.1.22 &> /dev/null &&
+	   ip netns exec ${NS2} ping -c 1 10.1.1.11 &> /dev/null; then
+		echo "selftests: test_xdp_redirect $xdpmode [PASS]";
+	else
+		ret=1
+		echo "selftests: test_xdp_redirect $xdpmode [FAILED]";
+	fi
+
+	cleanup
+}
+
+set -e
+trap cleanup 2 3 6 9
+
+test_xdp_redirect xdpgeneric
+test_xdp_redirect xdpdrv
+
+exit $ret