selftests/bpf/test_tc_tunnel.sh

2 # SPDX-License-Identifier: GPL-2.0
4 # In-place tunneling
10 readonly ns_prefix="ns-$$-"
32 	ip link add dev veth1 mtu 1500 netns "${ns1}" type veth \
35 	ip netns exec "${ns1}" ethtool -K veth1 tso off
37 	ip -netns "${ns1}" link set veth1 up
38 	ip -netns "${ns2}" link set veth2 up
40 	ip -netns "${ns1}" -4 addr add "${ns1_v4}/24" dev veth1
41 	ip -netns "${ns2}" -4 addr add "${ns2_v4}/24" dev veth2
42 	ip -netns "${ns1}" -6 addr add "${ns1_v6}/64" dev veth1 nodad
43 	ip -netns "${ns2}" -6 addr add "${ns2_v6}/64" dev veth2 nodad
46 	ip -netns "${ns1}" -4 route flush table main
47 	ip -netns "${ns1}" -6 route flush table main
48 	ip -netns "${ns1}" -4 route add "${ns2_v4}" mtu 1450 dev veth1
49 	ip -netns "${ns1}" -6 route add "${ns2_v6}" mtu 1430 dev veth1
60 	if [[ -f "${outfile}" ]]; then
63 	if [[ -f "${infile}" ]]; then
67 	if [[ -n $server_pid ]]; then
73 	ip netns exec "${ns2}" nc "${netcat_opt}" -l "${port}" > "${outfile}" &
79 	ip netns exec "${ns1}" timeout 2 nc "${netcat_opt}" -w 1 "${addr2}" "${port}" < "${infile}"
96 set -e
98 # no arguments: automated test, run all
99 if [[ "$#" -eq "0" ]]; then
148 if [[ "$#" -ne "4" ]]; then
159 	readonly netcat_opt=-${ipproto}
170 	readonly netcat_opt=-${ipproto}
173 	readonly fouproto="41 -6"
174 	readonly fouproto_mpls="${mplsproto} -6"
200 # client can no longer connect
203 	bpf direct-action object-file ${BPF_FILE} \
212 	targs="encap fou encap-sport auto encap-dport $udpport"
224 	targs="encap fou encap-sport auto encap-dport $dport"
253 ip netns exec "${ns2}" ip link add name testtun0 type "${ttype}" \
259 	# No support for MPLS IPv6 fou tunnel; expect failure.
262 	# No support for TEB fou tunnel; expect failure.
266 	ethaddr=$(ip netns exec "${ns2}" ip link show veth2 | \
267 		  awk '/ether/ { print $2 }')
268 	ip netns exec "${ns2}" ip link set testtun0 address $ethaddr
272 	ip netns exec "${ns2}" sysctl -qw net.mpls.platform_labels=65536
273 	ip netns exec "${ns2}" ip -f mpls route add 1000 dev lo
274 	ip netns exec "${ns2}" ip link set lo up
275 	ip netns exec "${ns2}" sysctl -qw net.mpls.conf.testtun0.input=1
276 	ip netns exec "${ns2}" sysctl -qw net.ipv4.conf.lo.rp_filter=0
283 ip netns exec "${ns2}" sysctl -qw net.ipv4.conf.all.rp_filter=0
285 # selected as the max of the "all" and device-specific values.
286 ip netns exec "${ns2}" sysctl -qw net.ipv4.conf.testtun0.rp_filter=0
287 ip netns exec "${ns2}" ip link set dev testtun0 up
300 ip netns exec "${ns2}" ip link del dev testtun0
303 	bpf direct-action object-file ${BPF_FILE} section decap