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#!/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
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