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Rolf Eike Beerd979e132016-12-14 11:58:20 +01001#!/bin/sh
Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +01002# SPDX-License-Identifier: GPL-2.0
Daniel Borkmann5aa5bd12016-10-17 14:28:36 +02003
Jeffrin Jose T81e167c2018-06-21 22:30:20 +05304# Kselftest framework requirement - SKIP code is 4.
5ksft_skip=4
6
7msg="skip all tests:"
8if [ "$(id -u)" != "0" ]; then
9 echo $msg please run this as root >&2
10 exit $ksft_skip
11fi
12
Daniel Borkmann5aa5bd12016-10-17 14:28:36 +020013SRC_TREE=../../../../
14
15test_run()
16{
17 sysctl -w net.core.bpf_jit_enable=$1 2>&1 > /dev/null
18 sysctl -w net.core.bpf_jit_harden=$2 2>&1 > /dev/null
19
20 echo "[ JIT enabled:$1 hardened:$2 ]"
21 dmesg -C
Naresh Kamboju035d8082018-02-07 23:45:34 +053022 if [ -f ${SRC_TREE}/lib/test_bpf.ko ]; then
23 insmod ${SRC_TREE}/lib/test_bpf.ko 2> /dev/null
24 if [ $? -ne 0 ]; then
25 rc=1
26 fi
27 else
28 # Use modprobe dry run to check for missing test_bpf module
29 if ! /sbin/modprobe -q -n test_bpf; then
30 echo "test_bpf: [SKIP]"
31 elif /sbin/modprobe -q test_bpf; then
32 echo "test_bpf: ok"
33 else
34 echo "test_bpf: [FAIL]"
35 rc=1
36 fi
Daniel Borkmann5aa5bd12016-10-17 14:28:36 +020037 fi
38 rmmod test_bpf 2> /dev/null
39 dmesg | grep FAIL
40}
41
42test_save()
43{
44 JE=`sysctl -n net.core.bpf_jit_enable`
45 JH=`sysctl -n net.core.bpf_jit_harden`
46}
47
48test_restore()
49{
50 sysctl -w net.core.bpf_jit_enable=$JE 2>&1 > /dev/null
51 sysctl -w net.core.bpf_jit_harden=$JH 2>&1 > /dev/null
52}
53
54rc=0
55test_save
56test_run 0 0
57test_run 1 0
58test_run 1 1
59test_run 1 2
60test_restore
61exit $rc