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