1#!/bin/bash
  2# SPDX-License-Identifier: GPL-2.0
  3
  4BPFFS=/sys/fs/bpf
  5MY_DIR=$(dirname $0)
  6TEST=$MY_DIR/test_cgrp2_sock2
  7LINK_PIN=$BPFFS/test_cgrp2_sock2
  8BPF_PROG=$MY_DIR/sock_flags.bpf.o
  9
 10function config_device {
 11	ip netns add at_ns0
 12	ip link add veth0 type veth peer name veth0b
 
 13	ip link set veth0 netns at_ns0
 14	ip netns exec at_ns0 sysctl -q net.ipv6.conf.veth0.disable_ipv6=0
 15	ip netns exec at_ns0 ip addr add 172.16.1.100/24 dev veth0
 16	ip netns exec at_ns0 ip addr add 2401:db00::1/64 dev veth0 nodad
 17	ip netns exec at_ns0 ip link set dev veth0 up
 18	sysctl -q net.ipv6.conf.veth0b.disable_ipv6=0
 19	ip addr add 172.16.1.101/24 dev veth0b
 20	ip addr add 2401:db00::2/64 dev veth0b nodad
 21	ip link set veth0b up
 22}
 23
 24function config_cgroup {
 25	rm -rf /tmp/cgroupv2
 26	mkdir -p /tmp/cgroupv2
 27	mount -t cgroup2 none /tmp/cgroupv2
 28	mkdir -p /tmp/cgroupv2/foo
 29	echo $$ >> /tmp/cgroupv2/foo/cgroup.procs
 30}
 31
 32function config_bpffs {
 33	if mount | grep $BPFFS > /dev/null; then
 34		echo "bpffs already mounted"
 35	else
 36		echo "bpffs not mounted. Mounting..."
 37		mount -t bpf none $BPFFS
 38	fi
 39}
 40
 41function attach_bpf {
 42	$TEST /tmp/cgroupv2/foo $BPF_PROG $1
 43	[ $? -ne 0 ] && exit 1
 44}
 45
 46function cleanup {
 47	rm -rf $LINK_PIN
 48	ip link del veth0b
 49	ip netns delete at_ns0
 50	umount /tmp/cgroupv2
 51	rm -rf /tmp/cgroupv2
 52}
 53
 54cleanup 2>/dev/null
 55
 56set -e
 57config_device
 58config_cgroup
 59config_bpffs
 60set +e
 61
 62#
 63# Test 1 - fail ping6
 64#
 65attach_bpf 0
 66ping -c1 -w1 172.16.1.100
 67if [ $? -ne 0 ]; then
 68	echo "ping failed when it should succeed"
 69	cleanup
 70	exit 1
 71fi
 72
 73ping6 -c1 -w1 2401:db00::1
 74if [ $? -eq 0 ]; then
 75	echo "ping6 succeeded when it should not"
 76	cleanup
 77	exit 1
 78fi
 79
 80rm -rf $LINK_PIN
 81sleep 1                 # Wait for link detach
 82
 83#
 84# Test 2 - fail ping
 85#
 86attach_bpf 1
 87ping6 -c1 -w1 2401:db00::1
 88if [ $? -ne 0 ]; then
 89	echo "ping6 failed when it should succeed"
 90	cleanup
 91	exit 1
 92fi
 93
 94ping -c1 -w1 172.16.1.100
 95if [ $? -eq 0 ]; then
 96	echo "ping succeeded when it should not"
 97	cleanup
 98	exit 1
 99fi
100
101cleanup
102echo
103echo "*** PASS ***"

 1#!/bin/bash
 2# SPDX-License-Identifier: GPL-2.0
 3
 4BPFFS=/sys/fs/bpf
 
 
 5LINK_PIN=$BPFFS/test_cgrp2_sock2
 
 6
 7function config_device {
 8	ip netns add at_ns0
 9	ip link add veth0 type veth peer name veth0b
10	ip link set veth0b up
11	ip link set veth0 netns at_ns0
 
12	ip netns exec at_ns0 ip addr add 172.16.1.100/24 dev veth0
13	ip netns exec at_ns0 ip addr add 2401:db00::1/64 dev veth0 nodad
14	ip netns exec at_ns0 ip link set dev veth0 up
 
15	ip addr add 172.16.1.101/24 dev veth0b
16	ip addr add 2401:db00::2/64 dev veth0b nodad
 
17}
18
19function config_cgroup {
20	rm -rf /tmp/cgroupv2
21	mkdir -p /tmp/cgroupv2
22	mount -t cgroup2 none /tmp/cgroupv2
23	mkdir -p /tmp/cgroupv2/foo
24	echo $$ >> /tmp/cgroupv2/foo/cgroup.procs
25}
26
27function config_bpffs {
28	if mount | grep $BPFFS > /dev/null; then
29		echo "bpffs already mounted"
30	else
31		echo "bpffs not mounted. Mounting..."
32		mount -t bpf none $BPFFS
33	fi
34}
35
36function attach_bpf {
37	./test_cgrp2_sock2 /tmp/cgroupv2/foo sock_flags_kern.o $1
38	[ $? -ne 0 ] && exit 1
39}
40
41function cleanup {
42	rm -rf $LINK_PIN
43	ip link del veth0b
44	ip netns delete at_ns0
45	umount /tmp/cgroupv2
46	rm -rf /tmp/cgroupv2
47}
48
49cleanup 2>/dev/null
50
51set -e
52config_device
53config_cgroup
54config_bpffs
55set +e
56
57#
58# Test 1 - fail ping6
59#
60attach_bpf 0
61ping -c1 -w1 172.16.1.100
62if [ $? -ne 0 ]; then
63	echo "ping failed when it should succeed"
64	cleanup
65	exit 1
66fi
67
68ping6 -c1 -w1 2401:db00::1
69if [ $? -eq 0 ]; then
70	echo "ping6 succeeded when it should not"
71	cleanup
72	exit 1
73fi
74
75rm -rf $LINK_PIN
76sleep 1                 # Wait for link detach
77
78#
79# Test 2 - fail ping
80#
81attach_bpf 1
82ping6 -c1 -w1 2401:db00::1
83if [ $? -ne 0 ]; then
84	echo "ping6 failed when it should succeed"
85	cleanup
86	exit 1
87fi
88
89ping -c1 -w1 172.16.1.100
90if [ $? -eq 0 ]; then
91	echo "ping succeeded when it should not"
92	cleanup
93	exit 1
94fi
95
96cleanup
97echo
98echo "*** PASS ***"