tools/testing/selftests/bpf/test_kmod.sh

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 SRC_TREE=../../../../
   5
   6 test_run()
   7 {
   8         sysctl -w net.core.bpf_jit_enable=$1 2>&1 > /dev/null
   9         sysctl -w net.core.bpf_jit_harden=$2 2>&1 > /dev/null
  10
  11         echo "[ JIT enabled:$1 hardened:$2 ]"
  12         dmesg -C
  13         insmod $SRC_TREE/lib/test_bpf.ko 2> /dev/null
  14         if [ $? -ne 0 ]; then
  15                 rc=1
  16         fi
  17         rmmod  test_bpf 2> /dev/null
  18         dmesg | grep FAIL
  19 }
  20
  21 test_save()
  22 {
  23         JE=`sysctl -n net.core.bpf_jit_enable`
  24         JH=`sysctl -n net.core.bpf_jit_harden`
  25 }
  26
  27 test_restore()
  28 {
  29         sysctl -w net.core.bpf_jit_enable=$JE 2>&1 > /dev/null
  30         sysctl -w net.core.bpf_jit_harden=$JH 2>&1 > /dev/null
  31 }
  32
  33 rc=0
  34 test_save
  35 test_run 0 0
  36 test_run 1 0
  37 test_run 1 1
  38 test_run 1 2
  39 test_restore
  40 exit $rc