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 ***" 104