1#!/bin/sh 2# SPDX-License-Identifier: GPL-2.0 3 4# Usage: 5# ./test_kmod.sh [module_param]... 6# Ex.: ./test_kmod.sh test_range=1,3 7# All the parameters are passed to the kernel module. 8 9# Kselftest framework requirement - SKIP code is 4. 10ksft_skip=4 11 12msg="skip all tests:" 13if [ "$(id -u)" != "0" ]; then 14 echo $msg please run this as root >&2 15 exit $ksft_skip 16fi 17 18if [ "$building_out_of_srctree" ]; then 19 # We are in linux-build/kselftest/bpf 20 OUTPUT=../../ 21else 22 # We are in linux/tools/testing/selftests/bpf 23 OUTPUT=../../../../ 24fi 25 26test_run() 27{ 28 sysctl -w net.core.bpf_jit_enable=$1 2>&1 > /dev/null 29 sysctl -w net.core.bpf_jit_harden=$2 2>&1 > /dev/null 30 31 echo "[ JIT enabled:$1 hardened:$2 ]" 32 shift 2 33 dmesg -C 34 if [ -f ${OUTPUT}/lib/test_bpf.ko ]; then 35 insmod ${OUTPUT}/lib/test_bpf.ko "$@" 2> /dev/null 36 if [ $? -ne 0 ]; then 37 rc=1 38 fi 39 else 40 # Use modprobe dry run to check for missing test_bpf module 41 if ! /sbin/modprobe -q -n test_bpf "$@"; then 42 echo "test_bpf: [SKIP]" 43 elif /sbin/modprobe -q test_bpf "$@"; then 44 echo "test_bpf: ok" 45 else 46 echo "test_bpf: [FAIL]" 47 rc=1 48 fi 49 fi 50 rmmod test_bpf 2> /dev/null 51 dmesg | grep FAIL 52} 53 54test_save() 55{ 56 JE=`sysctl -n net.core.bpf_jit_enable` 57 JH=`sysctl -n net.core.bpf_jit_harden` 58} 59 60test_restore() 61{ 62 sysctl -w net.core.bpf_jit_enable=$JE 2>&1 > /dev/null 63 sysctl -w net.core.bpf_jit_harden=$JH 2>&1 > /dev/null 64} 65 66rc=0 67test_save 68test_run 0 0 "$@" 69test_run 1 0 "$@" 70test_run 1 1 "$@" 71test_run 1 2 "$@" 72test_restore 73exit $rc 74