1#!/bin/bash
 2
 3function config_device {
 4	ip netns add at_ns0
 5	ip link add veth0 type veth peer name veth0b
 6	ip link set veth0b up
 7	ip link set veth0 netns at_ns0
 8	ip netns exec at_ns0 ip addr add 172.16.1.100/24 dev veth0
 9	ip netns exec at_ns0 ip addr add 2401:db00::1/64 dev veth0 nodad
10	ip netns exec at_ns0 ip link set dev veth0 up
11	ip link add foo type vrf table 1234
12	ip link set foo up
13	ip addr add 172.16.1.101/24 dev veth0b
14	ip addr add 2401:db00::2/64 dev veth0b nodad
15	ip link set veth0b master foo
16}
17
18function attach_bpf {
19	rm -rf /tmp/cgroupv2
20	mkdir -p /tmp/cgroupv2
21	mount -t cgroup2 none /tmp/cgroupv2
22	mkdir -p /tmp/cgroupv2/foo
23	test_cgrp2_sock /tmp/cgroupv2/foo foo
24	echo $$ >> /tmp/cgroupv2/foo/cgroup.procs
25}
26
27function cleanup {
28	set +ex
29	ip netns delete at_ns0
30	ip link del veth0
31	ip link del foo
32	umount /tmp/cgroupv2
33	rm -rf /tmp/cgroupv2
34	set -ex
35}
36
37function do_test {
38	ping -c1 -w1 172.16.1.100
39	ping6 -c1 -w1 2401:db00::1
40}
41
42cleanup 2>/dev/null
43config_device
44attach_bpf
45do_test
46cleanup
47echo "*** PASS ***"