2 # SPDX-License-Identifier: GPL-2.0
4 function config_device {
8 ip link add veth0 type veth peer name veth0b
9 ip link add veth1 type veth peer name veth1b
10 ip link add veth2 type veth peer name veth2b
14 ip link set dev veth0b mtu 1500
15 ip link set dev veth1b mtu 1500
16 ip link set dev veth2b mtu 1500
17 ip link set veth0 netns at_ns0
18 ip link set veth1 netns at_ns1
19 ip link set veth2 netns at_ns2
20 ip netns exec at_ns0 ip addr add 172.16.1.100/24 dev veth0
21 ip netns exec at_ns0 ip addr add 2401:db00::1/64 dev veth0 nodad
22 ip netns exec at_ns0 ip link set dev veth0 up
23 ip netns exec at_ns1 ip addr add 172.16.1.101/24 dev veth1
24 ip netns exec at_ns1 ip addr add 2401:db00::2/64 dev veth1 nodad
25 ip netns exec at_ns1 ip link set dev veth1 up
26 ip netns exec at_ns2 ip addr add 172.16.1.200/24 dev veth2
27 ip netns exec at_ns2 ip addr add 2401:db00::3/64 dev veth2 nodad
28 ip netns exec at_ns2 ip link set dev veth2 up
29 ip link add br0 type bridge
31 ip link set dev br0 mtu 1500
32 ip link set veth0b master br0
33 ip link set veth1b master br0
34 ip link set veth2b master br0
37 function add_ipip_tunnel {
38 ip netns exec at_ns0 \
39 ip link add dev $DEV_NS type ipip local 172.16.1.100 remote 172.16.1.200
40 ip netns exec at_ns0 ip link set dev $DEV_NS up
41 ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24
42 ip netns exec at_ns1 \
43 ip link add dev $DEV_NS type ipip local 172.16.1.101 remote 172.16.1.200
44 ip netns exec at_ns1 ip link set dev $DEV_NS up
45 # same inner IP address in at_ns0 and at_ns1
46 ip netns exec at_ns1 ip addr add dev $DEV_NS 10.1.1.100/24
48 ip netns exec at_ns2 ip link add dev $DEV type ipip external
49 ip netns exec at_ns2 ip link set dev $DEV up
50 ip netns exec at_ns2 ip addr add dev $DEV 10.1.1.200/24
53 function add_ipip6_tunnel {
54 ip netns exec at_ns0 \
55 ip link add dev $DEV_NS type ip6tnl mode ipip6 local 2401:db00::1/64 remote 2401:db00::3/64
56 ip netns exec at_ns0 ip link set dev $DEV_NS up
57 ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24
58 ip netns exec at_ns1 \
59 ip link add dev $DEV_NS type ip6tnl mode ipip6 local 2401:db00::2/64 remote 2401:db00::3/64
60 ip netns exec at_ns1 ip link set dev $DEV_NS up
61 # same inner IP address in at_ns0 and at_ns1
62 ip netns exec at_ns1 ip addr add dev $DEV_NS 10.1.1.100/24
64 ip netns exec at_ns2 ip link add dev $DEV type ip6tnl mode ipip6 external
65 ip netns exec at_ns2 ip link set dev $DEV up
66 ip netns exec at_ns2 ip addr add dev $DEV 10.1.1.200/24
69 function add_ip6ip6_tunnel {
70 ip netns exec at_ns0 \
71 ip link add dev $DEV_NS type ip6tnl mode ip6ip6 local 2401:db00::1/64 remote 2401:db00::3/64
72 ip netns exec at_ns0 ip link set dev $DEV_NS up
73 ip netns exec at_ns0 ip addr add dev $DEV_NS 2601:646::1/64
74 ip netns exec at_ns1 \
75 ip link add dev $DEV_NS type ip6tnl mode ip6ip6 local 2401:db00::2/64 remote 2401:db00::3/64
76 ip netns exec at_ns1 ip link set dev $DEV_NS up
77 # same inner IP address in at_ns0 and at_ns1
78 ip netns exec at_ns1 ip addr add dev $DEV_NS 2601:646::1/64
80 ip netns exec at_ns2 ip link add dev $DEV type ip6tnl mode ip6ip6 external
81 ip netns exec at_ns2 ip link set dev $DEV up
82 ip netns exec at_ns2 ip addr add dev $DEV 2601:646::2/64
89 ip netns exec at_ns2 tc qdisc add dev $DEV clsact
90 ip netns exec at_ns2 tc filter add dev $DEV egress bpf da obj tcbpf2_kern.o sec $SET_TUNNEL
91 ip netns exec at_ns2 tc filter add dev $DEV ingress bpf da obj tcbpf2_kern.o sec $GET_TUNNEL
99 cat /sys/kernel/debug/tracing/trace_pipe &
102 attach_bpf $DEV ipip_set_tunnel ipip_get_tunnel
104 ip netns exec at_ns0 ping -c 1 10.1.1.200
105 ip netns exec at_ns2 ping -c 1 10.1.1.100
106 ip netns exec at_ns0 iperf -sD -p 5200 > /dev/null
107 ip netns exec at_ns1 iperf -sD -p 5201 > /dev/null
109 # tcp check _same_ IP over different tunnels
110 ip netns exec at_ns2 iperf -c 10.1.1.100 -n 5k -p 5200
111 ip netns exec at_ns2 iperf -c 10.1.1.100 -n 5k -p 5201
115 # IPv4 over IPv6 tunnel
116 function test_ipip6 {
121 cat /sys/kernel/debug/tracing/trace_pipe &
124 attach_bpf $DEV ipip6_set_tunnel ipip6_get_tunnel
126 ip netns exec at_ns0 ping -c 1 10.1.1.200
127 ip netns exec at_ns2 ping -c 1 10.1.1.100
128 ip netns exec at_ns0 iperf -sD -p 5200 > /dev/null
129 ip netns exec at_ns1 iperf -sD -p 5201 > /dev/null
131 # tcp check _same_ IP over different tunnels
132 ip netns exec at_ns2 iperf -c 10.1.1.100 -n 5k -p 5200
133 ip netns exec at_ns2 iperf -c 10.1.1.100 -n 5k -p 5201
137 # IPv6 over IPv6 tunnel
138 function test_ip6ip6 {
143 cat /sys/kernel/debug/tracing/trace_pipe &
146 attach_bpf $DEV ip6ip6_set_tunnel ip6ip6_get_tunnel
148 ip netns exec at_ns0 ping -6 -c 1 2601:646::2
149 ip netns exec at_ns2 ping -6 -c 1 2601:646::1
150 ip netns exec at_ns0 iperf -6sD -p 5200 > /dev/null
151 ip netns exec at_ns1 iperf -6sD -p 5201 > /dev/null
153 # tcp check _same_ IP over different tunnels
154 ip netns exec at_ns2 iperf -6c 2601:646::1 -n 5k -p 5200
155 ip netns exec at_ns2 iperf -6c 2601:646::1 -n 5k -p 5201
162 ip netns delete at_ns0
163 ip netns delete at_ns1
164 ip netns delete at_ns2
175 echo "Testing IP tunnels..."