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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# Kselftest framework requirement - SKIP code is 4.
ksft_skip=4
msg="skip all tests:"
if [ "$(id -u)" != "0" ]; then
echo $msg please run this as root >&2
exit $ksft_skip
fi
if [ "$building_out_of_srctree" ]; then
# We are in linux-build/kselftest/bpf
OUTPUT=../../
else
# We are in linux/tools/testing/selftests/bpf
OUTPUT=../../../../
fi
test_run()
{
sysctl -w net.core.bpf_jit_enable=$1 2>&1 > /dev/null
sysctl -w net.core.bpf_jit_harden=$2 2>&1 > /dev/null
echo "[ JIT enabled:$1 hardened:$2 ]"
dmesg -C
if [ -f ${OUTPUT}/lib/test_bpf.ko ]; then
insmod ${OUTPUT}/lib/test_bpf.ko 2> /dev/null
if [ $? -ne 0 ]; then
rc=1
fi
else
# Use modprobe dry run to check for missing test_bpf module
if ! /sbin/modprobe -q -n test_bpf; then
echo "test_bpf: [SKIP]"
elif /sbin/modprobe -q test_bpf; then
echo "test_bpf: ok"
else
echo "test_bpf: [FAIL]"
rc=1
fi
fi
rmmod test_bpf 2> /dev/null
dmesg | grep FAIL
}
test_save()
{
JE=`sysctl -n net.core.bpf_jit_enable`
JH=`sysctl -n net.core.bpf_jit_harden`
}
test_restore()
{
sysctl -w net.core.bpf_jit_enable=$JE 2>&1 > /dev/null
sysctl -w net.core.bpf_jit_harden=$JH 2>&1 > /dev/null
}
rc=0
test_save
test_run 0 0
test_run 1 0
test_run 1 1
test_run 1 2
test_restore
exit $rc
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