netdev - [bpf-next RFCv2 3/3] samples: bpf: add veth AF

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Date:   Tue, 18 Dec 2018 17:04:53 -0800
From:   William Tu <u9012063@...il.com>
To:     bjorn.topel@...il.com, magnus.karlsson@...il.com, ast@...nel.org,
        daniel@...earbox.net, netdev@...r.kernel.org,
        makita.toshiaki@....ntt.co.jp, yihung.wei@...il.com
Subject: [bpf-next RFCv2 3/3] samples: bpf: add veth AF_XDP example.

Add example use cases for AF_XDP socket on two namespaces.
The script runs sender at the root namespace, and receiver
at the at_ns0 namespace with different XDP actions.

Signed-off-by: William Tu <u9012063@...il.com>
---
 samples/bpf/test_veth_afxdp.sh | 67 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100755 samples/bpf/test_veth_afxdp.sh

diff --git a/samples/bpf/test_veth_afxdp.sh b/samples/bpf/test_veth_afxdp.sh
new file mode 100755
index 000000000000..b65311cf15f7
--- /dev/null
+++ b/samples/bpf/test_veth_afxdp.sh
@@ -0,0 +1,67 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# The script runs the sender at the root namespace, and
+# the receiver at the namespace at_ns0, with different mode
+#  1. XDP_DROP
+#  2. XDP_TX
+#  3. XDP_PASS
+#  4. XDP_REDIRECT
+#  5. Generic XDP
+
+XDPSOCK=./xdpsock
+XDP_RXQ_INFO=./xdp_rxq_info
+
+ip netns add at_ns0
+ip link add p0 type veth peer name p1
+ip link set p0 netns at_ns0
+ip link set dev p1 up
+ip netns exec at_ns0 ip link set dev p0 up
+
+# send at root namespace
+test_xdp_drop()
+{
+	echo "[Peer] XDP_DROP"
+	ip netns exec at_ns0 $XDP_RXQ_INFO --dev p0 --action XDP_DROP &
+	$XDPSOCK -i p1 -t -N -z &> /tmp/t &> /dev/null &
+}
+
+test_xdp_pass()
+{
+	echo "[Peer] XDP_PASS"
+	ip netns exec at_ns0 $XDP_RXQ_INFO --dev p0 --action XDP_PASS &
+	$XDPSOCK -i p1 -t -N -z &> /tmp/t &> /dev/null &
+}
+
+test_xdp_tx()
+{
+	echo "[Peer] XDP_TX"
+	ip netns exec at_ns0 $XDP_RXQ_INFO --dev p0 --action XDP_TX &
+	$XDPSOCK -i p1 -t -N -z &> /tmp/t &> /dev/null &
+}
+
+test_generic_xdp()
+{
+	echo "[Peer] Generic XDP"
+	ip netns exec at_ns0 $XDPSOCK -i p0 -r -S &
+	$XDPSOCK -i p1 -t -N -z &> /tmp/t &> /dev/null &
+}
+
+test_xdp_redirect()
+{
+	echo "[Peer] XDP_REDIRECT"
+	ip netns exec at_ns0 $XDPSOCK -i p0 -r -N &
+	$XDPSOCK -i p1 -t -N -z &> /tmp/t &> /dev/null &
+}
+
+cleanup() {
+    killall xdpsock
+    killall xdp_rxq_info
+    ip netns del at_ns0
+    ip link del p1
+}
+
+trap cleanup 0 3 6
+
+test_xdp_drop
+cleanup
-- 
2.7.4