mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-31 00:17:44 +00:00
554ae6e792
Add examples preventing a process in a cgroup from opening a socket based family, protocol and type. Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
81 lines
1.4 KiB
Bash
Executable file
81 lines
1.4 KiB
Bash
Executable file
#!/bin/bash
|
|
|
|
function config_device {
|
|
ip netns add at_ns0
|
|
ip link add veth0 type veth peer name veth0b
|
|
ip link set veth0b up
|
|
ip link set veth0 netns at_ns0
|
|
ip netns exec at_ns0 ip addr add 172.16.1.100/24 dev veth0
|
|
ip netns exec at_ns0 ip addr add 2401:db00::1/64 dev veth0 nodad
|
|
ip netns exec at_ns0 ip link set dev veth0 up
|
|
ip addr add 172.16.1.101/24 dev veth0b
|
|
ip addr add 2401:db00::2/64 dev veth0b nodad
|
|
}
|
|
|
|
function config_cgroup {
|
|
rm -rf /tmp/cgroupv2
|
|
mkdir -p /tmp/cgroupv2
|
|
mount -t cgroup2 none /tmp/cgroupv2
|
|
mkdir -p /tmp/cgroupv2/foo
|
|
echo $$ >> /tmp/cgroupv2/foo/cgroup.procs
|
|
}
|
|
|
|
|
|
function attach_bpf {
|
|
test_cgrp2_sock2 /tmp/cgroupv2/foo sock_flags_kern.o $1
|
|
[ $? -ne 0 ] && exit 1
|
|
}
|
|
|
|
function cleanup {
|
|
ip link del veth0b
|
|
ip netns delete at_ns0
|
|
umount /tmp/cgroupv2
|
|
rm -rf /tmp/cgroupv2
|
|
}
|
|
|
|
cleanup 2>/dev/null
|
|
|
|
set -e
|
|
config_device
|
|
config_cgroup
|
|
set +e
|
|
|
|
#
|
|
# Test 1 - fail ping6
|
|
#
|
|
attach_bpf 0
|
|
ping -c1 -w1 172.16.1.100
|
|
if [ $? -ne 0 ]; then
|
|
echo "ping failed when it should succeed"
|
|
cleanup
|
|
exit 1
|
|
fi
|
|
|
|
ping6 -c1 -w1 2401:db00::1
|
|
if [ $? -eq 0 ]; then
|
|
echo "ping6 succeeded when it should not"
|
|
cleanup
|
|
exit 1
|
|
fi
|
|
|
|
#
|
|
# Test 2 - fail ping
|
|
#
|
|
attach_bpf 1
|
|
ping6 -c1 -w1 2401:db00::1
|
|
if [ $? -ne 0 ]; then
|
|
echo "ping6 failed when it should succeed"
|
|
cleanup
|
|
exit 1
|
|
fi
|
|
|
|
ping -c1 -w1 172.16.1.100
|
|
if [ $? -eq 0 ]; then
|
|
echo "ping succeeded when it should not"
|
|
cleanup
|
|
exit 1
|
|
fi
|
|
|
|
cleanup
|
|
echo
|
|
echo "*** PASS ***"
|